CN110159066B - A fence post with a locking function - Google Patents

Abstract

In the fence column with locking function of the present invention, the lower end of the column body is fixedly connected to the card cover. After the card cover is inserted into the big ends of the three arc-shaped slots on the top of the card base through three bayonet pins, the column body rotates and the bayonet pins slide along the arc-shaped hole slots. When entering the small end, the limit is fixed. The limit block extends into the three limit pin holes on the top of the card base through the three limit columns to cooperate with the limit. The column cannot rotate out; the safety fence passes through the upper hook and lower hook on the column. The hook is fixedly installed, and the fence lock piece at the upper end of the upper hook rotates and extends into the lock piece slot to cooperate with the lock plate inside the upper end of the column to lock the limit; the safety fence can be reliably locked after being connected and installed through the column to prevent slipping and loosening. It has stable support, reliable safety protection performance, small size and light weight, and is easy to install and disassemble.

Description

A fence post with a locking function

Technical field

The invention relates to a fence column with a locking function in the maintenance, testing and distribution maintenance of power transmission and transformation equipment in the electric power industry.

Background technique

With the rapid development of power technology, electrical equipment in the power industry is constantly being updated, and its structural types and spatial structure layouts are becoming more and more complex. Correspondingly, maintenance work requirements and operation methods also need to be adjusted accordingly; existing There are two main types of safety measures for primary equipment in substations. One is the workplace safety measures taken by operators for the work team. The other is a hard isolation safety measure set up by the construction unit to strictly distinguish the construction area and the equipment operation area;

Measures taken by operators to prevent workers from accidentally entering, accidentally getting on, or accidentally touching live operating equipment while working on primary equipment in the substation, or to prevent personal injury.

Traditional primary safety measures are divided into disc base type, insert base type, and fixed fence mesh type according to the safety fence support method. Each method has its own advantages, disadvantages and characteristics. The analysis is as follows:

1. Common issues:

The fixation is not firm and may fall over due to external force during use. Operation and maintenance personnel make arrangements based on experience, and it is difficult to arrange them horizontally, vertically, and in a standardized manner, which is unsightly;

2. Single question:

Fixed bracket type: telescopic fence, mainly used for the security arrangement of indoor equipment such as screen cabinets and switch cabinets in relay rooms. It can be spliced but the corners are not flexible, and the legs are long, making it inconvenient to transport;

Soil insertion type: It adopts the form of a combination of insertion pole and fence, and the splicing corners are flexible, but it is only suitable for soft ground and cannot be used on hard ground, and the metal bracket legs of the insertion pole are heavy;

Disk base type: Mainly used on hard floors. The base is large and heavy, and the assembly and disassembly process is complicated, which increases the workload of operation and maintenance personnel;

Pre-embedded pile type: It requires burying piles underground, which makes the construction complex and difficult to maintain. Moreover, the one-time investment in laying out and installing ground piles is large;

All in all, the safety fences used in the traditional maintenance process cannot be reliably locked after being installed through the columns and are easy to slide and loosen. The safety protection performance is unreliable. There is no limiter at the base. The installation and connection are unstable. The fence is difficult to fix and resistant. There are problems such as poor wind capacity and easy tipping. Moreover, the safety fence equipment is large and heavy, making it inconvenient to move and transport. The installation and disassembly are cumbersome, which increases the workload of substation operation and maintenance operators.

Contents of the invention

The technical problem to be solved by the present invention is to provide a fence that can be reliably locked to prevent slipping and loosening after the safety fence is installed through the matching connection of the columns, has reliable safety protection performance, is small in size and light in weight, is easy to install and disassemble, and has a locking function. Pillars.

The fence post with a locking function of the present invention is characterized in that it includes a base, and a column body fixedly connected and supported by the base. The column body is a hollow tubular structure with a hollow inner cavity; three rotatable columns are evenly arranged in the base along the circumferential direction. The snap-on slot and positioning bayonet structure; a lock box is fixedly installed on the top of the column, and a lock tongue is installed in the lock box through the lock core. The lock tongue is connected to a first pull rope, and the upper end of the first pull rope is fixedly connected to the lock tongue. on the top, the lower end of the first pull rope extends downward along the hollow inner cavity of the column to the bottom of the column, and is connected to the limit block. The lower end of the limit block is provided with a limit column extending downward, and the base is provided with a limit column capable of Stretch into the pin hole of the limiter; the upper part of the limiter block is equipped with a return spring, the lower end of the return spring is limited by the limit step of the limiter block, and the upper end is limited by the inner bottom surface of the card seat;

The upper and lower parts of the outer circumferential surface of the column are respectively fixed with upper hooks and lower hooks that can be inserted into the fence for fixed suspension. The top of the upper hook is hingedly connected with a fence lock piece that can rotate around the hinge axis in the vertical plane. The upper section of the wall is provided with a vertical locking slot at a position corresponding to the fence locking piece; a locking plate holder is fixedly installed in the inner cavity of the upper end of the column, and a locking plate that can move up and down is installed on the locking plate holder. The lower end of the locking plate is in the vertical position. The position in the straight direction corresponds to the upper end of the fence lock piece. A spring is provided between the back of the lock plate and the lock plate base to make the lock plate have a downward movement tendency; a second pull rope is fixedly connected to the lock plate, and the second pull cord is fixedly connected to the lock plate. The upper end of the rope is fixedly connected to the lock tongue, and the lower end is fixedly connected to the lock plate;

The inner part of the top of the locking piece close to the column is arc-shaped, and the outer part is in the shape of a concave limiter hook;

A slot is provided at the top of the upper hook, and the lower section of the locking piece is installed in the slot and is hingedly connected through a pin;

The lower end of the lock plate is fixedly installed with a torsion spring through the torsion spring groove. The lock plate is sleeved on the pin through the torsion spring. The upper end of the torsion spring extends into the torsion spring groove, and the lower end extends into the hook limit groove;

The lock plate is provided with two long round holes on the upper and lower sides to form a guide groove. A bolt fixedly connected to the lock plate seat is provided in each guide groove. The lock plate is limited and installed by two bolts and can be passed through the guide groove. The slot moves up and down along the bolt;

The back of the lock plate is located between the two guide grooves and is connected to the spring through a countersunk head screw. The spring is installed in the spring groove in the lock plate seat. The lower end of the spring is fixedly connected to the countersunk head screw and the upper end is fixedly connected to the spring groove. on the top surface;

The invention also relates to a fence column with a locking function, which is characterized in that it includes a base and a column body fixedly connected and supported by the base. The column body is a hollow tubular structure with a hollow inner cavity; the base is evenly arranged along the circumferential direction. There are three card slots and positioning bayonet structures that can be rotated and clamped; a lock box is fixedly installed on the top of the column, and a lock tongue is installed in the lock box through the lock core. The lock tongue is connected to a first pull rope, and the upper end of the first pull rope is fixed Connected to the lock tongue, the lower end of the first pull rope extends downward along the hollow inner cavity of the column to the bottom of the three-dimensional body, and is connected to the limiting block. The lower end of the limiting block is provided with a limiting column extending downward, and the base is provided with a capable The pin hole for the limit column to extend into the limit;

The upper and lower parts of the column are respectively covered with upper connecting sleeves and lower connecting sleeves. A pair of horizontally extending connecting plates are respectively provided on the outer circumferences of the upper connecting sleeves and the lower connecting sleeves. The fence frame and the connecting plates are fixedly connected together; the outer circumference of the column is Limit screws are provided on the surface above and below one of the connecting sleeves, and the other connecting sleeve can move up and down along the column;

Limiting screws are respectively provided on the outer circumferential surface of the column above and below the upper connecting sleeve; the lower connecting sleeve can move up and down along the column.

The base includes an inverted disk-shaped card holder, and a card cover that is fitted to the outside of the card holder and is fixedly connected to the column at the upper part. The top surface of the card holder is evenly distributed with three arc-shaped holes in a circular direction, each arc-shaped slot. The diameter of one end of the hole is larger than the diameter of the other end. The bottom of the card cover is equipped with three positioning pins that can cooperate with the three arc-shaped hole slots; the edge of the card holder is fixedly installed on the ground of the work site through three bolts; the bottom of the card holder A dust cover is provided, and the top surface of the dust cover is provided with an upwardly protruding dust-proof boss capable of covering the arc-shaped hole groove; the inner top surface of the card base is provided with a downwardly extending guide positioning post, and the dust cover passes through the guide The positioning column cooperates with the positioning installation and can move up and down along the guide positioning column. There is a compression spring under the dust cover, and the bottom end of the compression spring is pressed on the installation floor; the top surface of the card seat is evenly distributed in the circumferential direction smaller than the diameter of the arc-shaped hole slot. There are three limit pin holes, and the lower end of the limit block is provided with three limit posts that can cooperate with the three limit pin holes to limit the position;

A starting point mark is provided on the edge of the card holder between two of the bolts. The wall of the lower section of the card cover is tapered to suit the card holder. A socket is provided on the outer surface of the lower section of the card cover at a position corresponding to the starting mark. logo.

In the fence post with a locking function of the present invention, the lower end of the post body is fixedly connected to the card cover. After the card cover is inserted into the three arc-shaped slots on the top of the card base through three bayonet pins, the column body rotates and the bayonet pins slide along the arc-shaped hole slots. When entering the small end, the limit is fixed. The limit block extends into the three limit pin holes on the top of the card base through the three limit columns to cooperate with the limit. The column cannot rotate out; the safety fence passes through the upper hook and lower hook on the column. The hook is fixed and installed, and is locked by the locking piece on the upper end of the upper hook and the lock plate; the safety fence can be reliably locked after being connected and installed through the column to prevent slippage and loosening, stable support, reliable safety protection performance, small size and light weight, easy to install Easy to disassemble and operate.

Description of the drawings

Figure 1 is a schematic three-dimensional structural diagram of a fence column with a locking function according to an embodiment of the present invention;

Figure 2 is a schematic three-dimensional structural diagram of a fence column with a locking function according to an embodiment of the present invention, with the lock box and the upper section of the column removed;

Figure 3 is a schematic plan view of a fence column with a locking function according to an embodiment of the present invention;

Figure 4 is a schematic cross-sectional structural diagram of Figure 3;

Figure 5 is an enlarged schematic view of the structure of a fence post with a locking function, with the dust cover removed, from below according to an embodiment of the present invention;

Figure 6 is a partial enlarged view of the A-A section in Figure 5;

Figure 7 is a partial enlarged view of the B-B section of Figure 5;

Figure 8 is a schematic three-dimensional structural diagram of the clamp cover and clamp base of the fence post with a locking function according to the embodiment of the present invention;

Figure 9 is a schematic three-dimensional structural diagram of the deck of a fence post with a locking function according to an embodiment of the present invention;

Figure 10 is an enlarged schematic diagram of the three-dimensional structure of the deck of the fence post with a locking function from another perspective according to the embodiment of the present invention;

Figure 11 is an enlarged schematic diagram of the planar structure of the deck of the fence post with a locking function according to the embodiment of the present invention;

Figure 12 is a schematic structural diagram of the C-C section in Figure 11;

Figure 13 is an enlarged schematic diagram of the three-dimensional structure of a fence column with a locking function according to an embodiment of the present invention;

Figure 14 is a partial enlarged schematic diagram of the three-dimensional structure of the upper end of a fence column with a locking function according to an embodiment of the present invention;

Figure 15 is an enlarged schematic diagram of the three-dimensional structure of a fence post locking piece with a locking function according to an embodiment of the present invention;

Figure 16 is a schematic three-dimensional structural diagram of a fence column with a locking function in Embodiment 2 of the present invention.

Detailed ways

As shown in the figure, a fence column with a locking function in Embodiment 1 is installed with a fixed base on the ground at the electrical equipment maintenance site, and a support column 1 is fixedly connected to the top of the base. The column 1 is hollow tubular with a hollow inner cavity. The structure and materials can be made of lightweight materials such as engineering plastics, which are small in size and light in weight, and have high support strength; three card slots and positioning bayonet structures that can be rotated and clamped are evenly arranged in the base along the circumferential direction, and the column passes through the positioning card The pins and slots are positioned and connected for plug-in connection, which makes the installation and connection operation easy and the support stable and reliable.

The specific structure of the base is:

A card holder B3 is fixedly installed on the ground at the electrical equipment inspection and maintenance work site. The bottom end of the safety fence column 1 is fixedly connected to the card cover 7. The card cover 7 cooperates with the clamping set on the outside of the card holder B3. The column 1 passes through the card cover and the card holder. Cooperate with the limit installation support; multiple card holders can be set up along the electrical equipment inspection and maintenance work site to fully set up the safety fence. The safety fence is installed and supported through multiple columns to adapt to the on-site environment. Each card holder can be connected to any column. The card cover at the bottom of the body is matched and connected. The card cover at the bottom of each column can also be matched and connected with any card holder on the ground on site, making it easy to operate.

In the specific structure, the middle part of the card holder B3 protrudes upward to form a tapered card table structure, and the edge extends downward to form a flange ring structure. Three bolt connection holes are evenly arranged on the flange ring along the circumferential direction, and each bolt connection hole matches Connect the ground fastening bolt B1, and the card holder B3 is fixedly installed on the ground of the work site through the ground fastening bolt B1.

The top plate of the card base B3 is provided with three arc-shaped holes B4 evenly distributed along the circumferential direction. One end of each arc-shaped hole B4 has a diameter larger than the diameter of the other end; the bottom of the card cover 7 is recessed inward to form a chuck cavity. There is a chuck C3 inside. The chuck C3 has an inverted dish-shaped structure. The top plate of the chuck is fixedly connected to the inner bottom surface of the card cover from bottom to top through screws C2. The inner top surface of the chuck C3 is provided with three bayonet pins extending vertically downward. C4, the diameter of the main part of each bayonet C4 is adapted to the small diameter end of the arc-shaped hole slot B4;

Further, the upper section of the card cover is provided with a connecting section, and the card cover is fixedly connected to the safety fence column through the connecting section;

Furthermore, the connecting section is hollow inside, and the wall is a double-layer structure composed of an annular inner wall and an outer wall. The space between the inner wall and the outer wall forms a safety fence column insertion slot, and the outer circumferential surface of the connecting section is provided with a safety fence column from outside to inward. Threaded connection hole; the safety fence column is a cylindrical structure. After the safety fence column is inserted into the socket, it is connected through the threaded connection hole on the inner wall of the connecting section, the wall of the safety fence column and the outer wall of the connecting section through the countersunk screw C1 and fixed. Limit installation of safety fence posts;

Furthermore, the three bolt connection holes on the flange ring are respectively located at radial positions between the three arc-shaped hole slots, resulting in high space utilization;

Further, a dust cover B2 is provided in the card base, and the top surface of the dust cover B2 is provided with an upwardly protruding dust-proof boss capable of covering the arc-shaped hole slot; the inner top surface of the card base B3 is provided with a downwardly extending The guide positioning post B5 and the dust cover B2 are positioned and installed through the guide positioning post B5 and can move up and down along the guide positioning post B5. There is a compression spring B7 under the dust cover B2. The compression spring B7 is a coil spring. The bottom end of the coil spring presses On the installation ground, when not in use, the dust cover moves upward under the force of the compression spring to block the arc-shaped hole slot to prevent dust and garbage from entering the arc-shaped hole slot and affecting the use of the card holder; inside the card cover at the bottom of the safety fence column When the bayonet pin extends into the large end of the arc-shaped hole slot, it pushes the dust cover to move downward, and squeezes the compression spring to fit it on the installation floor;

Furthermore, the bottom end of each bayonet C4 has a limiting head. The diameter of the limiting head is greater than the diameter of the small end of the arc-shaped hole and smaller than the diameter of the large end of the arc-shaped hole. The distance between the limiting head and the bottom end of the chuck is equal to the diameter of the limiting head. The thickness of the seat top plate is suitable; after the card cover extends into the big end of the arc-shaped hole slot through the limit head of the bayonet, the bayonet rotates along the arc-shaped hole slot and enters the small end of the arc-shaped hole slot, and the limit head provides vertical direction The limit is reliable, and the installation support is reliable; a downwardly protruding limit stopper is set around the large end of each arc-shaped hole slot. When the bayonet rotates in reverse and exits, the limit head and the limit stopper cooperate to limit the position. It will not rotate too far and is easy to disassemble and operate;

In the specific structure of the locking function, firstly, a lock box 2 is fixedly installed on the top of the column, and a lock tongue 7 is installed inside the lock box 2 through the lock core 21. A first pull cord C8 is fixedly connected below the lock tongue 7. The upper end of the rope C8 is fixedly connected to the lock tongue 7. The lower end of the first pull rope C8 extends downward along the hollow inner cavity of the column 1 to the bottom of the column 1, and is connected to a limit block C9. The lower end of the limit block C9 is provided with three There is a limit column C7 extending downward, and the base is provided with three pin holes for the limit column C7 to extend into the limit; the upper part of the limit block is equipped with a return spring C6, and the lower end of the return spring C6 is formed by the limit step of the limit block Limit, the upper end is limited by the inner bottom surface of the card holder; the cross section of the limit block C9 is rectangular, and a rectangular cavity is provided inside the card cover at the bottom of the column 1. When the column is connected to the card holder through the card cover, the limit block It rotates together with the column in the rectangular cavity. The bayonet rotates along the arc-shaped slot from the big end to the small end. After the limit connection, the three limit posts at the lower end of the limit block also rotate together to the position corresponding to the three pin holes. When , the limit block moves downward under the elastic restoring force of the return spring, and the three limit columns extend into the three pin holes to cooperate with the limit. The column cannot continue to rotate and the limit is locked; when it is necessary to disassemble the column 1, The key drives the lock cylinder to rotate, and the first pull rope C8 lifts up the limit block, so that the limit column is separated from the pin hole, and the column can be rotated in the opposite direction and dismantled.

The specific installation structure of the safety fence is:

An upper hook 5 and a lower hook 6 are respectively fixedly installed on the upper and lower parts of the outer circumference of the column 1. The upper and lower ends of the safety fence are respectively inserted into and fixedly suspended with the upper hook 5 and the lower hook 6; at the same time, the safety fence is locked to prevent When the fence moves, a fence locking piece 4 is hingedly connected to the top of the upper hook. A vertical locking slot 3 is provided on the upper wall section of the column corresponding to the fence locking piece. A fixed locking piece 3 is installed in the inner cavity of the upper end of the column. Lock plate base 11, a lock plate 9 that can move up and down is installed on the lock plate base 11. The lower end of the lock plate 9 is positioned in the vertical direction corresponding to the upper end of the fence lock piece 4. The back of the lock plate 9 is with A spring 10 is arranged between the lock plate seats 11. The elastic force of the spring 10 keeps the lock plate 9 always moving downward; after the upper end of the safety fence and the upper hook 5 are inserted and fixedly suspended, the fence lock piece 4 is The hinge point is rotated to the upper end and extends into the inside of the lock plate slot 3. After the lock plate is pushed upward, the upper end of the fence lock plate extends into the inside of the lock plate. The lock plate is moved downward and reset by the elastic force of the spring, and the limit blocks the fence. The upper end of the locking piece prevents the safety fence from slipping off;

A second pull cord 6 is also fixedly connected to the upper end of the lock plate 9. The upper end of the second pull cord 6 is also fixedly connected to the lock tongue 7, and the lower end is fixedly connected to the lock plate 9. When the key drives the lock cylinder to rotate, the lock tongue passes through The second pull rope drives the lock plate upward, the fence lock piece is reset, and the safety fence can be disassembled.

The specific structure of the locking plate is:

The inner part of the top of the lock plate 4 close to the column is arc-shaped, which is convenient for sliding and rotating inward along the bottom end of the lock plate, and at the same time pushing the lock plate to move upward. The outer part of the lock plate is a concave limit hook shape, which is convenient for connecting with the lock plate. The lower end matches the limit.

A vertical slot is provided at the top of the upper hook, and the lower section of the locking piece is installed in the slot and is hingedly connected through the pin 41. The locking shaft can directly choose a countersunk head screw or a bolt.

The lower end of the lock plate is fixedly installed with a torsion spring 42 through the torsion spring groove. The lock plate is sleeved on the pin through the torsion spring. The upper end of the torsion spring extends into the torsion spring groove, and the lower end extends into the hook limit groove. The lock plate faces upward. After being lifted up, the locking piece returns to its original position under the elastic force of the torsion spring.

The specific sliding structure of the lock plate: two long round holes on the upper and lower sides are provided on the lock plate to form a guide groove. A bolt is fixedly connected to the lock plate seat in each guide groove. The lock plate is limited by two bolts. Installed and able to move up and down along the bolt through the guide groove;

The back of the lock plate is located between the two guide grooves and is connected to the spring 10 through a countersunk head screw. The spring 10 is installed in the spring groove in the lock plate seat. The lower end of the spring 10 is fixedly connected to the countersunk head screw and the upper end is fixedly connected to the spring groove. On the inner top surface, the elastic force of the spring provides the force that the lock plate always moves downward.

In order to further improve the convenience of connecting the column and the base, a starting point mark B10 is set on the edge of the card holder between two bolts. The lower wall of the card cover is set to a tapered shape that is suitable for the card seat. The outer surface of the lower section is provided with a socket mark 8 at a position corresponding to the starting point mark. When the plug connection is made, the socket mark 8 is aligned with the starting point mark B10, that is, the bayonet in the card cover at the lower end of the column can be easily extended into the upper arc of the card holder. The large diameter end of the hole slot.

Both the first and second pull ropes are steel wire ropes, which have high connection strength and stable and reliable operation effects.

The fence column with locking function in Embodiment 2 is also provided with a base, and a column body fixedly connected and supported by the base. The structure of the column body and the base are consistent with the specific structures of Embodiment 1;

The difference is that an upper connecting sleeve A1 and a lower connecting sleeve A2 are respectively installed on the upper and lower parts of the outer circumferential surface of the column 1, and a pair of upper connecting sleeves A1 and lower connecting sleeves A2 are respectively provided on the outer circumferential surface and extend in the horizontal direction. Connecting plate A3, the fence is fixedly connected to the connecting plate A3 through the frame; set limit screws A4 above and below one of the connecting sleeves on the outer circular surface of the column, so that one connecting sleeve is limited and the other one is not moved. The connecting sleeve can move up and down along the column to adapt to the installation and connection requirements of tensile mesh safety fences;

In actual operation, limit screws A4 are respectively provided on the outer circumferential surface of the column above and below the upper connecting sleeve A1, so that the upper connecting sleeve A1 is fixed and the lower connecting sleeve A2 can move up and down along the column.

Specific design ideas:

The invention relates to fixed high-voltage electrical equipment for power generation, supply and distribution. It is mainly used for safety fences required for electrical equipment maintenance, electrical testing, power distribution maintenance and isolation in banks, stations, hospitals and other areas, especially GIS high-voltage combined electrical appliances. .

With the rapid development of electric power technology, the upgrading of electric power equipment, maintenance work requirements and adjustments to operating methods have also undergone new changes. The structural type and spatial arrangement of substation equipment have greatly increased in complexity, making traditional safety fence equipment bulky and unwieldy. Problems such as inconvenient transportation and troublesome assembly and disassembly have gradually become apparent, which has virtually increased the workload of substation operation and maintenance personnel. In addition, traditional safety fences are difficult to fix, have poor wind resistance, and are prone to tipping. These problems are also potential issues that cannot be ignored in terms of installation arrangements. Hidden danger.

There are two main types of safety measures for primary equipment in substations. One is the workplace safety measures taken by operators for the work team. The other is a hard isolation safety measure set up by the construction unit to strictly distinguish the construction area and the equipment operation area;

Measures taken by operators to prevent workers from accidentally entering, accidentally getting on, or accidentally touching live operating equipment while working on primary equipment in the substation, or to prevent personal injury.

Traditional primary safety measures are divided into disc base type, insert base type, and fixed fence mesh type according to the safety fence support method. Each method has its own advantages, disadvantages and characteristics. The analysis is as follows:

1. Common issues:

The fixation is not firm and may fall over due to external force during use. The operation and maintenance personnel arrange the equipment based on experience, and it is difficult to arrange it horizontally, vertically, and standardly, which is not beautiful.

2. Single question:

Fixed bracket type: Telescopic fence is mainly used for the security arrangement of indoor equipment such as screen cabinets and switch cabinets in relay protection rooms. It can be spliced but the corners are not flexible, and the legs are long, making it inconvenient to transport.

Soil insertion type: It adopts the form of a combination of insertion pole and fence, and the splicing corners are flexible, but it is only suitable for soft ground and cannot be used on hard ground, and the metal bracket legs of the insertion pole are heavy.

Disk base type: Mainly used on hard floors. The base is large and heavy, and the assembly and disassembly process is complicated, which increases the workload of operation and maintenance personnel.

Pre-embedded pile type: It requires burying piles underground, which makes the construction complex and difficult to maintain. Moreover, the one-time investment in laying out and installing ground piles is large.

3. Directions for improving safety fences:

Through a comparison of several safety fences (fences) currently used in substations, and combined with the actual safety measures needed in substations, the improvement direction of safety fences should mainly focus on the following points:

① The fence should be firmly fixed at the roots, wind-resistant, and not easy to fall over.

② The insertion rod should be made of lightweight materials, and the structure of the bracket legs should be simplified to reduce the transportation burden.

③ Optimize the fence structure, simplify the installation and dismantling process, and reduce the burden on operation and maintenance staff.

④ It must be applicable to hard and soft ground, simplify the embedded infrastructure, and reduce costs.

⑤ The pre-embedded points should be combined with the actual equipment layout of the substation site, especially if there are many combined electrical pillars and structures.

In this case, it is necessary to flexibly set the embedded points to adapt to various types of maintenance work installation arrangements.

⑥Consider the locking function of the safety fence to prevent artificial destruction of safety measures

⑦ On the basis of realizing the complete function of the fence, try to make the fence horizontal, vertical, neat and beautiful.

4. Specific technical structure:

The multifunctional column combination safety fence we developed is a means to effectively ensure the personal safety of GIS equipment maintenance personnel and the safety isolation and warning of equipment. It improves the safety and reliability of equipment during maintenance, reduces on-site management costs, and fills the gap of GIS equipment. There has long been a lack of systematic gaps in standardized safety measures for on-site equipment maintenance. It provides standardized guidance measures for on-site safety production. It is a new technology product that is required for safety measures in the inspection and maintenance of various types of fixed electrical equipment.

The multifunctional column combination safety fence is an innovation for safety fences, fences or warning tapes used in power systems. It mainly solves the following problems:

① Effectively reduce the heavy physical labor of operation and maintenance personnel.

② Effectively solve the problem of safety fences, fences or warning tapes that are easily prone to lodging or placed irregularly due to external forces during use.

question.

③ Effectively control the problems of safety fences, fences or warning tapes due to their wide variety, inconvenience to use, high damage rate after use, and difficulty in storage and management after use.

The multifunctional column combination safety fence serves as a matrix. When operation and maintenance personnel arrange safety measures, the types used can be adjusted according to the actual needs of the site, such as: fences, fences, warning tapes, etc.

The multifunctional post combination safety fence is mainly composed of a ground buckle locking plate, a fence or warning tape, and a combination post part.

1. The components of the floor buckle locking disk are: floor buckle locking disk, floor buckle locking disk dust disk, thrust spring. The floor buckle dust sealing disk is equipped with a boss corresponding to the floor buckle locking disk.

2. The components of the combined column: insulating rod, obstacle pin, blocking ring, multi-functional hanging sleeve, column chuck. The top of the column is equipped with a cap. The column chuck is fastened to the bottom of the combined column. The components of the column chuck: clamp The chuck cover, positioning pins or screws, limiting sleeves, and buckles. The chuck cover plays the role of protecting the buckles. There is a boss outside the cover to assist positioning during operation.

Specific steps:

When the operation and maintenance staff hang up the safety isolation fence as required, they only need to transport the columns to the site, and the chucks on the columns are inserted and fixed on the ground buckles as required. The specific implementation method is as follows:

1. Column locking: Align the card cover socket mark at the bottom of the column with locking function with the starting point mark of the card holder and press it. Rotate clockwise about 45 degrees. At this time, the column and the card holder will automatically lock.

2. Hang the net: Hang the net on the upper hook of the column. If you need to lock it, just push the locking piece into the locking slot on the column and engage it with the bottom of the lock plate to complete the hanging net locking process. Task.

3. Retract the net: Insert the key into the control lock and turn it clockwise to open the control lock. At this time, the net lock plate will automatically pop out of the lock plate slot to close the net. Turn the key counterclockwise to take out the key.

4. Unlock the column: Insert the key into the control lock and turn it clockwise to open the control lock. The limit block in the card cover will automatically pop up. Turn the socket mark on the column counterclockwise to the starting point mark of the card holder. At this time, the column The body is released from the lock of the card holder. After the column is successfully unlocked, the key can be taken out by turning the key counterclockwise.

Claims (1)

1. The utility model provides a take rail stand of shutting function which characterized in that: the device comprises a base and a column body fixedly connected and supported by the base, wherein the column body is of a hollow tubular structure with a hollow inner cavity; three clamping grooves capable of being clamped in a rotating mode and a positioning clamping pin structure are uniformly formed in the base along the circumferential direction; the lock box is fixedly arranged at the top end of the upright post body, a lock tongue is arranged in the lock box through a lock cylinder, the lock tongue is connected with a first pull rope, the upper end of the first pull rope is fixedly connected to the lock tongue, the lower end of the first pull rope extends downwards to the bottom end of the upright post body along the hollow inner cavity of the upright post body and is connected with a limiting block, a limiting column extending downwards is arranged at the lower end of the limiting block, and a pin hole for the limiting column to extend into is arranged on the base; the upper section of the limiting block is sleeved with a reset spring, the lower end of the reset spring is limited by a limiting step of the limiting block, and the upper end of the reset spring is limited by the inner bottom surface of the clamping seat;

the upper part and the lower part of the outer circumferential surface of the upright column are respectively fixedly provided with an upper hook and a lower hook which can be used for inserting and fixing the fence to hang, the top end of the upper hook is hinged with a purse net locking plate which can rotate around a hinge shaft in a vertical plane, and a vertical locking plate groove is formed in the position of the upper section of the wall part of the upright column corresponding to the purse net locking plate; the inner cavity at the upper end of the upright body is fixedly provided with a locking plate seat, the locking plate seat is provided with a locking plate capable of moving up and down, the position of the lower end of the locking plate in the vertical direction corresponds to the upper end of the purse net locking plate, and a spring which enables the locking plate to have a downward movement trend is arranged between the back of the locking plate and the locking plate seat; the lock plate is fixedly connected with a second stay rope, the upper end of the second stay rope is fixedly connected to the lock tongue, and the lower end of the second stay rope is fixedly connected to the lock plate;

the inner side part of the top end of the locking plate, which is close to the upright body, is arc-shaped, and the outer side part of the top end of the locking plate is concave limiting hook-shaped; the top end of the upper hook is provided with a slot, and the lower section of the locking plate is arranged in the slot in a matched manner and is hinged and connected through a pin shaft; the lower end of the locking plate is fixedly provided with a torsion spring through a torsion spring groove, the locking plate is sleeved on the pin shaft through the torsion spring, the upper end of the torsion spring stretches into the torsion spring groove, and the lower end of the torsion spring stretches into the hook limiting groove; the lock plate is provided with an upper long round hole and a lower long round hole which form guide grooves, a bolt fixedly connected to the lock plate seat is arranged in each guide groove, and the lock plate is installed in a limiting mode through the two bolts and can move up and down along the bolts through the guide grooves; the back of the lock plate is positioned between the two guide grooves and connected with a spring through a countersunk screw, the spring is arranged in a spring groove in the lock plate seat, the lower end of the spring is fixedly connected to the countersunk screw, and the upper end of the spring is fixedly connected to the inner top surface of the spring groove;

the base comprises an inverted disc-shaped clamping seat and a clamping cover which is sleeved outside the clamping seat in a matched mode and is fixedly connected with the vertical column body at the upper portion of the clamping seat, three arc-shaped hole grooves are uniformly distributed on the top surface of the clamping seat along the circular direction, the diameter of one end of each arc-shaped hole groove is larger than that of the other end of each arc-shaped hole groove, and three positioning clamping pins capable of being matched and limited with the three arc-shaped hole grooves are arranged at the bottom of the clamping cover; the edge of the clamping seat is fixedly arranged on the ground of the working site through three bolt connections; a dust cover is arranged below the clamping seat, and the top surface of the dust cover is provided with an upward protruding dust-proof boss which can be matched with and shade the arc-shaped hole groove; the inner top surface of the clamping seat is provided with a downward extending guide positioning column, the dust cover is installed in a matched positioning way through the guide positioning column and can move up and down along the guide positioning column, a pressure spring is arranged below the dust cover, and the bottom end of the pressure spring is pressed on the installation ground; three limit pin holes are uniformly distributed on the top surface of the clamping seat in the circumferential direction smaller than the diameter of the arc-shaped hole groove, and three limit posts capable of being matched with the three limit pin holes for limiting are arranged at the lower end of the limit block; the edge of the clamping seat is provided with a starting point mark at a position between two bolts, the wall part of the lower section of the clamping cover is conical and is suitable for the clamping seat, and a socket mark is arranged at a position corresponding to the starting point mark on the outer surface of the lower section of the clamping cover.