CN114212668A

CN114212668A - A steel structure hoisting fixture, hoisting device and arch trolley

Info

Publication number: CN114212668A
Application number: CN202111470109.8A
Authority: CN
Inventors: 胡鹏填; 杨亮; 国清华
Original assignee: Hunan Pengxiang Xingtong Automobile Co ltd
Current assignee: Hunan Pengxiang Xingtong Automobile Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-03-22

Abstract

The invention discloses a hoisting clamp which comprises a body, a first clamping body fixedly connected with the body, a second clamping body connected with the body, and a first clamping body and a second clamping body which are arranged oppositely; stone tongs still includes for the locking mechanism of the relative motion of the first clamping body of locking and second clamping body, wherein locking mechanism includes: the locking body is arranged on the body and arranged on one side of the second clamping body and used for locking the second clamping body, the wedge-shaped block is arranged on one side of the locking body and used for locking the locking body, and the limiting device is used for locking the wedge-shaped block; the invention has simple structure, simple and convenient operation and strong practicability, and effectively improves the hoisting efficiency of the arch frame section.

Description

Steel construction stone tongs, hoist device and bow member platform truck

Technical Field

The invention relates to the field of engineering machinery, in particular to a steel structure hoisting clamp, which comprises a hoisting device of the steel structure hoisting clamp and an arch frame trolley of the hoisting device.

Background

In the excavation of each tunnel, a plurality of steel arches need to be erected in the length direction of the tunnel to prevent the tunnel from collapsing. Because of the large cross section of the tunnel, the length of each arch is correspondingly large to meet the requirements, and each arch can be split into a plurality of arch segments in general for the convenience of transportation. During the installation and construction of the arch, the arch segment is usually grabbed and held by using an arch trolley and a corresponding manipulator or a gripper mechanism therein, and is lifted to the position to be installed by a working arm.

The prior art discloses a stone tongs, hoist device and bow member platform truck (the publication number is CN109607373A), its during operation, first holding body (2) are around round pin axle (7) anticlockwise rotation, fixing base (4222) are passed to the straight shank portion of T type bolt (4221), with the draw-in groove cooperation of first holding body (2), exert force at the right-hand member of driver plate (41) and pin the right-hand member face of second holding body (3), guarantee that T type bolt does not separate with the draw-in groove of first holding body (2), realize the centre gripping and the hoist and mount of bow member section.

However, this technique also has some problems:

1. when the arch center section is hoisted and needed to be put down after the completion, the situation of a construction site is complicated, if the arch center section is clamped between the first clamping body (2) and the second clamping body (3), force is just applied to the upper end face of the straight handle part of the T-shaped bolt (4221) on the clamping groove of the first clamping body (2), and the dial (41) is shifted to enable the straight handle part of the T-shaped bolt (4221) to be possibly and smoothly withdrawn from the clamping groove.

2. When centre gripping bow member, need exert ascending power for the right-hand member of driver plate (41), make the straight shank of T type bolt (4221) not in the turning radius within range of first clamping body (2), then first clamping body (2) rotate right around round pin axle (7) until the draw-in groove mouth can cooperate with straight shank, the power that gives driver plate (41) is applyed to the whole in-process can not be interrupted, otherwise it removes to let the straight shank of T type bolt move right and can realize on the contrary only by the upper right portion circular arc of first clamping body (2).

Disclosure of Invention

The invention aims to provide a steel structure hoisting clamp, a hoisting device and an arch frame trolley, so as to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme:

a hoisting clamp comprises a body, a first clamping body fixedly connected with the body, a second clamping body connected with the body, and a first clamping body and a second clamping body which are arranged oppositely;

stone tongs still includes for the locking mechanism of the relative motion of the first clamping body of locking and second clamping body, wherein locking mechanism includes: the locking body sets up on the body and sets up and be used for locking second holding body in second holding body one side to and the wedge sets up and carries out the locking in locking body one side, and stop device for carry out the locking to the wedge.

Preferably, the second clamping body, the locking body and the wedge block are rotatably connected with the body, the top of the second clamping body is provided with a first inclined surface which inclines upwards to the right, the side part of the second clamping body is provided with a first vertical surface, the locking body is integrally in a shape of 7, the right side of the locking body is provided with a second vertical surface which is abutted against the first vertical surface, and the bottom surface of the locking body is provided with a second inclined surface which is abutted against the first inclined surface and a horizontal plane which is arranged on one side of the inclined surface; the locking body top is equipped with the inclined plane three of leaning on the left, and the wedge bottom is equipped with the inclined plane four with three butts on inclined plane, and stop device sets up in the wedge right side with the locking wedge.

Preferably, the body is provided with a fixing block for limiting the counterclockwise rotation of the locking block, the fixing block can be connected to the body through bolts, the fixing block is provided with a clamping groove, and the locking block is provided with a clamping block for clamping the clamping groove.

Preferably, the limiting device comprises limiting parts which are positioned on the side parts of the first clamping plate and the second clamping plate and are oppositely arranged, the two limiting parts respectively form a limiting groove with the first clamping plate and the second clamping plate, and the limiting device further comprises a safety bolt which is matched with the limiting groove to lock the wedge block.

Furthermore, when the first clamping body and the second clamping body tightly grasp the arch center section, a pin shaft is arranged at the position, opposite to the side surface of the top of the arch center section, of the second clamping body, the pin shaft penetrates through the first clamping body and the second clamping body and is connected with a bolt, and one end of the bolt can abut against the side surface of the top of the arch center section.

Furthermore, the positions of the first clamping body and the second clamping body, which are in contact with the arch frame section, are wavy, so that the arch frame section can be clamped at the wavy position, wherein the relative extension or shortening positions of the two bolts can be adjusted, so that auxiliary support during hoisting of the arch frame sections of different sizes is met, and the hoisting safety is greatly improved.

Preferably, the body includes splint one, still includes the splint two that sets up with splint one relatively, still includes the cylinder of connecting splint one and splint two.

First cramping body and body fixed connection, the second cramping body rotates around the body, adjust second cramping body pivoted angle, can be to the centre gripping of unidimensional bow member section, in case second cramping body rotation point position has the rotation that the foreign matter will influence the second cramping body, consequently, set up the body into the cylinder including splint one, splint two and connecting splint one and splint two, this kind of setting can be with the rotation point of second cramping body, hide between splint one and splint two, the effectual second cramping body rotation point position of having avoided has the foreign matter to rotate. Meanwhile, the locking block and the wedge-shaped block are also hidden between the first clamping plate and the second clamping plate, so that the device is prevented from being damaged in the hoisting process. The hoisting clamp also prevents the first clamping body and the second clamping body from being damaged by themselves and other parts in the hoisting process, and the hoisting clamp can effectively protect the first clamping body and the second clamping body.

The utility model provides a hoist device, hoist device passes through fixed establishment and connects on the work arm of bow member platform truck, and has used foretell stone tongs, the above-mentioned stone tongs's that has the same advantage.

An arch center trolley comprises a working arm, wherein the tail end of the working arm is provided with a hoisting device used for grabbing and keeping an arch center section.

The invention has the beneficial effects that:

in this patent, when the safety cock after of putting down, the wedge can't rotate around round pin axle clockwise, because the fixed block sets firmly in the body, the locking body can't rotate around round pin axle clockwise, also can not anticlockwise rotate, consequently, under above-mentioned interlocking state, first cramping body and second cramping body firmly clip the bow member section, whether the device is in the tilt state when no matter hoist and mount, does not have any influence to the security performance of device.

When the hoisting of the arch frame section is completed, the safety bolt is only required to be opened, the wedge-shaped block is rotated to the position of the wedge-shaped block, the force around the pin shaft is applied to the lower end of the second clamping body, the second clamping body can be loosened, and the arch frame section is put down.

The invention has simple structure, simple and convenient operation and strong practicability, and effectively improves the hoisting efficiency of the arch frame section.

Drawings

Fig. 1 is a schematic structural view of the lifting clamp in this embodiment.

Fig. 2 is another schematic structural diagram of the lifting clamp in this embodiment.

Fig. 3 is a structural schematic diagram of a locking state of the hoisting clamp in the embodiment.

Figure 4 is an isometric view of the hoist clamp of this embodiment.

Fig. 5 is a structural schematic diagram of the hoisting clamp in an unlocked state in the embodiment.

In the figure: 1. a body; 2. a fixed block; 201. a card slot; 3. a first clamping body; 4. a second clamping body; 401. a first inclined plane; 402. a first vertical surface; 5. a locking mechanism; 6. a locking body; 601. a second vertical surface; 602. a second inclined plane; 603. a third inclined plane; 604. a clamping block; 7. a wedge block; 701. a fourth inclined plane; 8. a limiting device; 801. a limiting member; 802. a safety plug; 9. a first clamping plate; 10. a second clamping plate; 11. and (4) a cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, the lifting clamp provided in the embodiment of the present invention includes a body 1, a first clamping body 3 fixedly connected to the body 1, and a second clamping body 4 connected to the body 1, wherein the first clamping body 3 and the second clamping body 4 are disposed opposite to each other;

the stone tongs still includes for locking first clamping body 3 and the locking mechanism 5 of the 4 relative motion of second clamping body, wherein locking mechanism 5 includes:

a locking body 6 arranged on the body 1 and arranged on one side of the second clamping body 4 for locking the second clamping body 4, and

the wedge 7 sets up and carries out the locking in locking body 6 one side to locking body 6 to and stop device 8, be used for carrying out the locking to wedge 7.

As shown in fig. 2, the preferred embodiment is: the second clamping body 4, the locking body 6 and the wedge block 7 are rotatably connected with the body 1, a first inclined surface 401 which inclines upwards to the right is arranged at the top of the second clamping body 4, a first vertical surface 402 is arranged on the side part of the second clamping body, the locking body 6 is integrally in a 7-shaped shape, a second vertical surface 601 which is abutted against the first vertical surface 402 is arranged on the right side of the locking body 6, a second inclined surface 602 which is abutted against the first inclined surface 401 and a horizontal plane which is arranged on the side of the first inclined surface 401 are arranged on the bottom surface of the locking body; the top of the locking body 6 is provided with a third inclined surface 603 inclined to the left, the bottom of the wedge block 7 is provided with a fourth inclined surface 701 abutted against the third inclined surface 603, and the limiting device 8 is arranged on the right side of the wedge block 7 to lock the wedge block 7.

As shown in fig. 3, the preferred embodiment is: the body 1 is provided with a fixing block 2 for limiting the counterclockwise rotation of the locking block, the fixing block 2 can be connected to the body 1 through bolts, the fixing block 2 is provided with a clamping groove 201, and the locking block is provided with a clamping block 604 for clamping the clamping groove 201.

As shown in fig. 4, the body 1 includes a first clamping plate 9, a second clamping plate 10 opposite to the first clamping plate 9, and a cylinder 11 connecting the first clamping plate 9 and the second clamping plate 10.

The preferred embodiment is: the limiting device 8 comprises limiting pieces 801 which are located on the side portions of the first clamping plate 9 and the second clamping plate 10 and are arranged oppositely, the two limiting pieces 801 respectively form a limiting groove with the first clamping plate 9 and the second clamping plate 10, and the limiting device further comprises a safety bolt 802 which is matched with the limiting groove to lock the wedge block 7.

As shown in fig. 3, after the safety plug 802 is put down, the wedge 7 cannot rotate clockwise around the pin, because the fixing block 2 is fixed on the body 1, the locking body 6 cannot rotate clockwise around the pin, and cannot rotate counterclockwise, under the interlocking state, the first clamping body 3 and the second clamping body 4 firmly clamp the arch frame section, and no matter whether the device is in an inclined state during hoisting, the safety performance of the device is not affected.

As shown in fig. 5, when the hoisting of the arch segment is completed, the second clamping body 4 can be loosened and the arch segment can be put down by only opening the safety bolt 802, rotating the wedge block 7 to the wedge position upward, and applying a force around the pin at the lower end of the second clamping body 4.

Further, first cramping body 3 and second cramping body 4 are when clenching the bow member section, second cramping body 4 is provided with the round pin axle with the relative position in side at bow member section top, the round pin axle passes first cramping body 3 and second cramping body 4 and is connected with the bolt, the one end of bolt can offset with the side at bow member section top, make at the in-process of stone tongs at hoist and mount bow member section, provide the auxiliary stay for the bow member section, prevent at the in-process of hoist and mount, rocking of bow member section.

Furthermore, the contact positions of the first clamping body 3 and the second clamping body 4 with the arch frame section are wavy, so that the arch frame section can be clamped at the wavy positions. At the in-process of bow member section at hoist and mount, the chucking is difficult to rock, wherein, still can adjust the relative extension of two bolts or the position that shortens to auxiliary stay when satisfying the hoist and mount of the bow member section of equidimension not, great improvement the security of hoist and mount.

First cramping body 3 and body 1 fixed connection, second cramping body 4 rotates around body 1, adjust second cramping body 4 pivoted angle, can be to the centre gripping of unidimensional bow member section, in case second cramping body 4 rotates the point location and has put the rotation that the foreign matter will influence second cramping body 4, therefore, set up body 1 to including splint one 9, splint two 10 and the cylinder 11 of connecting splint one 9 and splint two 10, this kind of setting can be with the rotation point of second cramping body 4, hide between splint one 9 and splint two 10, the effectual second cramping body 4 of having avoided rotates the point location and has put the foreign matter and can not rotate. Meanwhile, the locking block and the wedge-shaped block 7 are also hidden between the first clamping plate 9 and the second clamping plate 10, so that the device is prevented from being damaged in the hoisting process. The first clamping body 3 and the second clamping body 4 are prevented from being damaged by themselves and other parts in the hoisting process, and the hoisting clamp can effectively protect the hoisting clamp per se by the structure.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A lifting clamp comprises a body (1), a first clamping body (3) fixedly connected with the body (1), and a second clamping body (4) connected with the body (1), wherein the first clamping body (3) and the second clamping body (4) are arranged oppositely;

further comprising a locking mechanism (5) for locking the relative movement of the first gripping body (3) and the second gripping body (4), wherein the locking mechanism (5) comprises:

a locking body (6) arranged on the body (1) and arranged on one side of the second clamping body (4) for locking the second clamping body (4), and

the wedge block (7) is arranged on one side of the locking body (6) to lock the locking body (6), and the limiting device (8) is used for locking the wedge block (7).

2. The hoisting clamp according to claim 1, wherein the second clamping body (4), the locking body (6) and the wedge block (7) are rotatably connected with the body (1), a first inclined surface (401) which is inclined upwards and rightwards is arranged at the top of the second clamping body (4), a first vertical surface (402) is arranged at the side part of the second clamping body (4), the locking body (6) is integrally 7-shaped, a second vertical surface (601) which is abutted against the first vertical surface (402) is arranged at the right side of the locking body (6), a second inclined surface (602) which is abutted against the first inclined surface (401) and a horizontal surface which is arranged at the side of the first inclined surface (401) are arranged at the bottom surface of the locking body (6); the locking body (6) top is equipped with inclined plane three (603) to the left bank, wedge (7) bottom is equipped with inclined plane four (701) with inclined plane three (603) butt, and stop device (8) set up in wedge (7) right side with locking wedge (7).

3. The hoisting clamp as recited in claim 1, wherein the body (1) is provided with a fixing block (2) for limiting the locking block to rotate anticlockwise, the fixing block (2) is provided with a clamping groove (201), and the locking block is provided with a clamping block (604) for clamping the clamping groove (201).

4. A lifting clamp as claimed in claim 1, characterized in that the limiting means (8) comprises a limiting member (801) disposed at the side of the first clamping plate (9) and the second clamping plate (10) and opposite to each other, wherein the two limiting members (801) respectively form a limiting groove with the first clamping plate (9) and the second clamping plate (10), and a safety bolt (802) cooperating with the limiting groove to lock the wedge block (7).

5. A lifting clamp according to claim 1, characterized in that when the first clamping body (3) and the second clamping body (4) grasp the arch segment, the second clamping body (4) is provided with a pin shaft opposite to the side of the top of the arch segment, the pin shaft passes through the first clamping body (3) and the second clamping body (4) and is connected with a bolt, and one end of the bolt can be abutted against the side of the top of the arch segment.

6. A lifting clamp according to claim 1, characterised in that the position where the first clamping body (3) and the second clamping body (4) are in contact with the arch segment is wave-shaped.

7. A lifting clamp according to any one of claims 1-6, characterised in that the body (1) comprises a first clamping plate (9), a second clamping plate (10) arranged opposite the first clamping plate (9), and a cylinder (11) connecting the first clamping plate (9) and the second clamping plate (10).

8. Hoisting device, which is connected to the working arm of an arch trolley by means of a fixing mechanism, characterized in that the hoisting device comprises a hoisting clamp according to any one of claims 1-6.

9. An arch trolley comprising a working arm, characterized in that the end of the working arm is provided with a lifting device according to claim 8 for gripping and holding an arch segment.