CN115325267A - Waterproof reinforced structure of municipal works push pipe construction tube coupling department - Google Patents

Abstract

The invention discloses a waterproof reinforcement structure at pipe joints in pipe jacking construction of municipal engineering, in particular to the field of pipe jacking construction. A first sealing mechanism is fixedly installed between, a second sealing mechanism is fixedly installed inside the first sealing mechanism, a plurality of reinforcement mechanisms are fixedly installed inside the second sealing mechanism, and the first sealing mechanism includes a sleeve sleeved on the outer wall of the first pipe fitting. The first sealing frame. The present invention shrinks and seals the connection between the first pipe and the second pipe by extruding and deforming the rubber airbag, and simultaneously makes the first annular gasket and the second annular gasket overlap each other and seal the first pipe and the second pipe. In the gap between the inner cavities of the two pipe fittings, double sealing treatment is performed on the first pipe fitting and the second pipe fitting, so as to avoid water leakage.

Description

A waterproof reinforcement structure at pipe joints in municipal engineering pipe jacking construction

technical field

The invention relates to the technical field of pipe jacking construction, more specifically, the invention relates to a waterproof reinforcement structure at pipe joints in municipal engineering pipe jacking construction.

Background technique

Pipe jacking technology is a non-excavation pipe laying construction technology used in municipal construction. The advantage is that it does not affect the surrounding environment or the impact is small, the construction site is small, and the noise is small. And it can work deep underground, which is an incomparable advantage of excavating buried pipes. However, pipe jacking technology also has disadvantages, such as long construction time and high project cost. The most prominent feature of pipe jacking construction is the problem of adaptability. According to different geological conditions, construction conditions and design requirements, it will be very critical for pipe jacking construction to choose the appropriate pipe jacking construction method and how to correctly select the pipe jacking machine and supporting auxiliary equipment.

Penetration When connecting two pipe jacking sections, the gap between the two pipe jacking joints is easily damaged by the impact of water flow, and then water leakage will affect the actual use. Therefore, the present invention proposes a municipal engineering pipe jacking construction pipe joint Waterproof reinforcement structure to solve the above problems.

Contents of the invention

In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a waterproof reinforcement structure at pipe joints in municipal engineering pipe jacking construction, by setting the first sealing frame and the second sealing frame on the first pipe fitting and the second pipe fitting Extrude the rubber airbag to make it deform and shrink to seal at the junction of the first pipe and the second pipe, and at the same time, the first annular gasket and the second annular gasket are superimposed and sealed on the first pipe and the second pipe At the joint gap of the inner cavity, the double sealing treatment of the first pipe part and the second pipe part is realized, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a waterproof reinforcement structure at pipe joints in municipal engineering pipe jacking construction, including a pipe jacking mechanism, and the pipe jacking mechanism includes a first pipe fitting and a second pipe fitting;

A first sealing mechanism is fixedly installed between the first pipe piece and the second pipe piece, a second sealing mechanism is fixedly installed inside the first sealing mechanism, and a plurality of reinforcement mechanisms are fixedly installed inside the second sealing mechanism ;

The first sealing mechanism includes a first sealing frame sleeved on the outer wall of the first pipe, the outer wall of the second pipe is sleeved with a second sealing frame, and the second sealing mechanism includes a sealing frame fixedly installed on the inner wall of the second sealing frame. The first annular gasket on the first sealing frame is fixedly installed on the inner wall of the first sealing frame with a second annular gasket, and one side of the first annular gasket and the second annular gasket are fixedly installed with a plurality of arc-shaped gaskets. Shaped set of elastic braces.

In a preferred embodiment, the first sealing mechanism further includes a first protective cover provided on the outer wall of the first pipe, and a second protective cover is provided on the outer wall of the second pipe.

In a preferred embodiment, at least two threaded sleeves are fixedly installed on the outer walls of the first sealing frame and the second sealing frame, and at least two threaded sleeves are screwed inside the first protective cover and the second protective cover. bolts, and the bolts are threaded into the interior of the threaded sleeve, and the outer walls of the first sealing frame and the second sealing frame are fixedly installed with a plurality of water-saving rings.

In a preferred embodiment, a hollow rubber airbag is fixedly installed between the first sealing frame and the second sealing frame, and a plurality of through holes are opened on the outer wall of the rubber airbag .

In a preferred embodiment, the reinforcement mechanism includes a limiting cylinder arranged on one side of the first annular gasket, the limiting cylinder is hollow, and a plurality of first limit block;

One side of the second annular gasket is provided with a push rod, one end of the push rod is fixedly mounted with two limiting plates, and a plurality of second limiting blocks are fixedly mounted on the outer wall of the limiting plate.

In a preferred embodiment, the cross-sectional shapes of the first limit block and the second limit block are both set as right triangles, the push rod and the first limit block are arranged on the same horizontal line, and the two The limiting plate is plugged into the inner cavity of the limiting cylinder.

In a preferred embodiment, a wear-resistant gasket is fixedly installed between the limiting plate and the second limiting block, and an engaging rod is fixedly installed on the side of the limiting cylinder and the push rod away from the limiting plate. , and the connecting rod is fixedly installed on one side of the corresponding first annular gasket and the second annular gasket.

Technical effect and advantage of the present invention:

1. In the present invention, when the first pipe piece and the second pipe piece are connected to each other, the rubber air bag is squeezed to deform and shrink the joint of the first pipe piece and the second pipe piece, and at the same time, the first annular gasket and the second pipe piece The two ring-shaped gaskets are superimposed and sealed on the joint gap between the first pipe fitting and the inner cavity of the second pipe fitting, thereby realizing double sealing treatment on the first pipe fitting and the second pipe fitting to avoid water leakage;

2. In the present invention, the first sealing frame and the second sealing frame are sleeved on the outer walls of the first pipe and the second pipe, and the first protective cover and the second protective cover are stacked together and fixedly installed on the top pipe On the outer wall of the mechanism, the outer wall of the connection between the first pipe fitting and the second pipe fitting can be double protected to avoid the impact of external force, and at the same time, it is more convenient to install and more convenient for actual use;

3. In the present invention, when the first annular sealing gasket and the second annular sealing gasket are fixed inside the first pipe fitting and the second pipe fitting, the elastic support plate is limitedly pressed against the inner walls of the first pipe fitting and the second pipe fitting, In turn, the internal diameters of the first pipe and the second pipe are reduced, thereby slowing down the flow velocity of the water flowing there, thereby reducing the impact on the connection between the first annular gasket and the second annular gasket, thereby avoiding long-term impact on the first The annular gasket and the second annular gasket are damaged, thereby prolonging the service life of the first annular gasket and the second annular gasket and enhancing the sealing effect;

4. In the present invention, when the first annular gasket and the second annular gasket are fixed inside the first pipe piece and the second pipe piece, the limiting plate is forced to tilt and inserted into the inner cavity of the limiting cylinder, and passes through the first The mutual engagement of the limiting block and the second limiting block makes the limiting cylinder and the limiting plate connected together without falling off, and at the same time, with the impact of the water flow, the limiting plate can move deeper into the inner cavity of the limiting cylinder , so that when the water flow impacts, the connection between the first limiting block and the limiting plate is stronger, thereby making the connection between the first pipe part and the second pipe part more firm.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a sectional view of the overall structure of the present invention.

Fig. 3 is an enlarged view of the structure of part A in Fig. 2 of the present invention.

Fig. 4 is a structural schematic diagram of the first sealing mechanism, the second sealing mechanism and the reinforcing mechanism of the present invention.

Fig. 5 is a structural sectional view of the first sealing mechanism, the second sealing mechanism and the reinforcement mechanism of the present invention.

FIG. 6 is an enlarged view of the structure of part B in FIG. 5 of the present invention.

FIG. 7 is an enlarged view of the structure of part C in FIG. 5 of the present invention.

Reference numerals are: 1 pipe jacking mechanism, 101 first pipe fitting, 102 second pipe fitting, 2 first sealing mechanism, 21 first protective cover, 22 second protective cover, 23 first sealing frame, 24 second sealing frame, 25 rubber airbag, 26 through hole, 27 water-saving ring, 28 threaded sleeve, 29 bolt, 3 second sealing mechanism, 31 first annular gasket, 32 second annular gasket, 33 elastic support plate, 4 reinforcement mechanism, 41 Spacer cylinder, 42 first spacer, 43 push rod, 44 spacer plate, 45 second spacer, 46 wear-resistant gasket, 47 connecting rod.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Referring to accompanying drawings 1-7 of the specification, a waterproof reinforcement structure at pipe joints in municipal engineering pipe jacking construction according to an embodiment of the present invention, as shown in FIG. second pipe 102;

A first sealing mechanism 2 is fixedly installed between the first pipe 101 and the second pipe 102. The setting of the first sealing mechanism 2 is used to firmly connect the first pipe 101 and the second pipe 102. The first sealing mechanism 2 The second sealing mechanism 3 is fixedly installed inside, and the setting of the second sealing mechanism 3 is used to limit and reduce the aperture diameter of the connection between the first pipe fitting 101 and the second pipe fitting 102, so as to slow down the flow velocity of the water flow here, thereby reducing The impact of the water flow on the joint of the first pipe 101 and the second pipe 102 can reduce the effect of damaging the first pipe 101 and the second pipe 102, thereby preventing the joint of the first pipe 101 and the second pipe 102 from being damaged due to a major impact. In the event of damage and water leakage, a plurality of reinforcing mechanisms 4 are fixedly installed inside the second sealing mechanism 3 to improve the firmness of the connection between the first pipe fitting 101 and the second pipe fitting 102;

As shown in FIGS. 5-7 and in conjunction with FIG. 3 , the first sealing mechanism 2 includes a first sealing frame 23 sleeved on the outer wall of the first pipe 101 , and a second sealing frame 24 is sleeved on the outer wall of the second pipe 102 . The first sealing frame 23 and the second sealing frame 24 are all arranged in the shape of "匚", and the first sealing frame 23 and the second sealing frame 24 are all made of rubber. When in use, the first sealing frame 23 and the second sealing frame The frames 24 are sleeved on the outer walls of the communication ports of the first pipe 101 and the second pipe 102 respectively, and when the first pipe 101 and the second pipe 102 are fitted together, the first sealing frame 23 and the second sealing The frames 24 fit together, which can play the role of sealing and limiting the connection between the first pipe piece 101 and the second pipe piece 102. The second sealing mechanism 3 includes a first annular ring fixedly installed on the inner wall of the second sealing frame 24. Gasket 31, a second annular gasket 32 is fixedly installed on the inner wall of the first sealing frame 23, and one side of the first annular gasket 31 and the second annular gasket 32 are fixedly installed with a plurality of arc-shaped elastic rings. The supporting plate 33, wherein the section height of the second annular gasket 32 is higher than the section height of the first annular gasket 31, and then in use, the first annular gasket 31 can be inserted into the second annular gasket 32 and the second annular gasket 32. At the gap between the sealing frames 23, the first pipe piece 101 and the second pipe piece 102 that are connected together are subjected to double sealing treatment. When the plate 33 is in a normal state, it is set in a state of expanding toward the first pipe piece 101 and the second pipe piece 102. When the first annular gasket 31 and the second annular gasket 32 are installed into the first pipe piece 101 and the second pipe piece 102 After the cavity, the elastic stretcher 33 is squeezed by the inner walls of the first pipe 101 and the second pipe 102, and the elastic stretcher 33 can be squeezed, and then retracted toward the inner cavity of the first pipe 101 and the second pipe 102, and then The inner diameters of the first pipe piece 101 and the second pipe piece 102 are reduced, so that when the water flows between the first pipe piece 101 and the second pipe piece 102, the flow velocity of the water passing through the second sealing mechanism 3 is slowed down, thereby slowing down the impact on the first pipe piece 101 and the second pipe piece 102. The impact pressure at the joint between the pipe piece 101 and the second pipe piece 102 can further reduce the damage to the first annular gasket 31 and the second annular gasket 32 , avoiding damage and water leakage.

The first sealing mechanism 2 also includes a first protective cover 21 arranged on the outer wall of the first pipe part 101, and a second protective cover 22 is provided on the outer wall of the second pipe part 102, and the height of the first protective cover 21 is higher than that of the second protective cover 22. height, the second protective cover 22 can be plugged between the first protective cover 21 and the first sealing frame 23, when the first protective cover 21 and the second protective cover 22 are stacked and installed together, the first The connection gap between the pipe fitting 101 and the second pipe fitting 102 is double-protected. The outer walls of the first sealing frame 23 and the second sealing frame 24 are at least fixedly equipped with two threaded sleeves 28. The first protective cover 21 and the second protective cover 22 There are at least two bolts 29 threaded in the inner part, and the bolts 29 are threaded into the inside of the threaded sleeve 28, wherein the outer walls of the first protective cover 21 and the second protective cover 22 are provided with a plurality of thread grooves in a linear sequence and equidistant state , the bolts 29 are threaded in the corresponding threaded grooves, and penetrate through the threaded grooves to connect with the corresponding threaded sleeves 28. In use, the first protective cover 21 is set on the outer wall of the first sealing frame 23, and the second protective cover 21 The cover 22 is sleeved on the outer wall of the second sealing frame 24, and then the second protective cover 22 is inserted between the first protective cover 21 and the first sealing frame 23, and then the bolt 29 is screwed to the first protective cover 21 and the outer wall of the second protective cover 22 and penetrate through the first protective cover 21 and the second protective cover 22 to connect with the corresponding threaded sleeve 28, then according to the thickness of the first pipe 101 and the second pipe 102, tighten the bolt 29 That is to say, the first protective cover 21 and the second protective cover 22 are connected to each other and fixedly installed on the outer wall of the junction of the first pipe member 101 and the second pipe member 102. At the same time, the first sealing frame 23 and the second sealing frame 24 A plurality of water-saving rings 27 are fixedly installed on the outer wall of the outer wall, and the setting of the water-saving ring 27 is used for after the first protective cover 21 and the second protective cover 22 are fixedly installed on the outer walls of the first pipe fitting 101 and the second pipe fitting 102 respectively. The gap between the first protective cover 21 and the first sealing frame 23, the second protective cover 22 and the second sealing frame 24 is blocked and limited to prevent water leakage from the gap between the first pipe part 101 and the second pipe part 102 , flow along the trend to the gap between the first protective cover 21 and the first sealing frame 23 , the second protective cover 22 and the second sealing frame 24 .

As shown in Figures 3-4, a hollow rubber airbag 25 is fixedly installed between the first sealing frame 23 and the second sealing frame 24, and the outer wall of the rubber airbag 25 is provided with a plurality of penetrating through holes. 26. When the first pipe piece 101 and the second pipe piece 102 are bonded together, the first sealing frame 23 and the second sealing frame 24 which are sheathed on the outer walls of the first pipe piece 101 and the second pipe piece 102 simultaneously seal against the rubber airbag 25 Extrusion occurs. Under normal conditions, the inner cavity of the rubber airbag 25 is filled with gas and is inflated. When the rubber airbag 25 is squeezed, the gas in the inner cavity of the rubber airbag 25 is gradually discharged through the through hole 26, thereby making the rubber airbag 25 Deformation occurs, and it is attached to the joint of the first sealing frame 23 and the second sealing frame 24. At this time, the first protective cover 21 and the second protective cover 22 are connected together in a plug-in manner, and the threaded sleeve After 28 and bolt 29 are fixed to each other, the first pipe 101 and the second pipe 102 can be connected to each other, and the rubber air bag 25 is deformed and sealed in the gap at the junction of the first pipe 101 and the second pipe 102, and then It has the effect of sealing the gap.

In specific implementation, firstly, the first sealing frame 23 and the second sealing frame 24 are respectively sleeved on the outer wall of the junction of the first pipe 101 and the second pipe 102, and at the same time, the first sealing mechanism 2 synchronously drives the second sealing mechanism 3 Installed into the inner cavity of the first pipe piece 101 and the second pipe piece 102, and then the first protective cover 21 is sleeved on the outer wall of the first sealing frame 23, and the second protective cover 22 is sleeved on the outer wall of the second sealing frame 24, After that, the first pipe piece 101 and the second pipe piece 102 are simultaneously squeezed toward the connection, so that the rubber airbag 25 is deformed and sealed at the joint gap between the first sealing frame 23 and the second sealing frame 24, and the first annular seal Pad 31 is plugged into the inner cavity of the first sealing frame 23 and the second annular gasket 32, the second protective cover 22 is inserted between the first protective cover 21 and the first sealing frame 23, then the bolt 29 is screwed and Penetrate through the threaded groove inner cavity of the first protective cover 21 and the second protective cover 22 until it is connected with the threaded sleeve 28 at the corresponding position, so that the first protective cover 21 and the second protective cover 22 pass through the corresponding threaded sleeve 28 and bolts 29 are squeezed and fixedly installed on the outer walls of the first pipe 101 and the second pipe 102, so that the first annular gasket 31 and the second annular gasket 32 are combined with the first sealing frame 23 and the second sealing frame 24 and the rubber airbag 25 double seal the gap between the first pipe 101 and the second pipe 102 to avoid water leakage, and at the same time make the elastic brace 33 press and limit the first pipe 101 and the second pipe 102 inner cavity, so that the elastic brace 33 reduces the inner diameters of the first pipe member 101 and the second pipe member 102, thereby slowing down the speed of the water flow to this place, thereby reducing the impact of the water flow on the first annular gasket 31 and the second annular gasket 32 The impact wear further improves the sealing effect of the first annular gasket 31 and the second annular gasket 32 and improves the service life.

Further, as shown in FIG. 6 , the reinforcement mechanism 4 includes a limit cylinder 41 disposed on one side of the first annular gasket 31 , the limit cylinder 41 is hollow, and the inner wall of the limit cylinder 41 is fixedly mounted with a plurality of The first limit block 42, as shown in FIG. 4 , in actual installation, the first annular gasket 31 and the limit cylinder 41 are installed on the outer wall of the second pipe 102, and the push rod 43 and the second annular gasket 32 are installed on the the outer wall of the first pipe member 101;

One side of the second annular gasket 32 is provided with a push rod 43, and one end of the push rod 43 is fixedly equipped with two limiting plates 44, and a plurality of second limiting blocks 45 are fixedly installed on the outer wall of the limiting plate 44. The two limit plates 44 are arranged symmetrically about the horizontal center line of the push rod 43, and when the two limit plates 44 are plugged into the cavity of the limit cylinder 41, the second limit block 45 and the first limit block 42 When contact occurs, it will be deflected to be in an inclined state, so that when the two limiting plates 44 are in contact with the inner cavity of the limiting cylinder 41, they will be close to each other, so as to facilitate the insertion into the inner cavity of the limiting cylinder 41. At the same time, the first limiting plate The cross-sectional shape of the position block 42 and the second limit block 45 is set as a right triangle, the push rod 43 and the first limit block 42 are arranged on the same horizontal line, and the two limit plates 44 are plugged into the limit tube 41 Inner cavity, as shown in FIG. 6 , the slope surfaces of the first limiting block 42 and the second limiting block 45 are arranged in a state parallel to each other. When the first limiting block 42 and the second limiting block 45 fit together , it can be spliced into a square, and when the second stopper 45 provided on the stopper plate 44 is in contact with the first stopper 42 provided in the cavity of the stopper 41, the second stopper 45 is sequentially made 45 and the first limiting block 42 are joined together to form a square, and the second limiting block 45 is transformed into the second limiting block 45 and moves over the first limiting block 42 and is limited by the first limiting block 42 to block the second limiting block 45, while The limit plate 44 loses the limit of the first limit block 42 and returns to a horizontal state, so that the limit plate 44 can no longer retreat from the inner cavity of the limit cylinder 41, so that when in use, the water flows through the first pipe 101 to the second tube. When the inner cavity of the pipe fitting 102 is formed, the water flow will continuously impact the push rod 43, so that the push rod 43 will push the limit plate 44 to always be inserted deep into the inner cavity of the first limit block 42 as the flow rate of the water flow increases, thereby making the The connection between the limiting cylinder 41 and the push rod 43 is more firm, so as to avoid the situation that the limiting plate 44 and the first limiting block 42 fall off due to the impact of strong water flow.

A wear-resistant pad 46 is fixedly installed between the limiting plate 44 and the second limiting block 45, and when the first limiting block 42 and the second limiting block 45 engage and limit each other, the wear-resistant gasket 46 abuts against the Between the first limiting block 42 and the limiting plate 44, the frictional force between the limiting plate 44 and the first limiting block 42 can be buffered, reducing the wear of the first limiting block 42 on the outer wall of the limiting plate 44, avoiding the limit When the position plate 44 is pressed by the first limit block 42 for a long time and continues to be damaged, the side of the limit tube 41 and the push rod 43 away from the limit plate 44 is fixedly installed with an engaging rod 47, and the engaging rod 47 is fixedly installed on the Corresponding to one side of the first annular gasket 31 and the second annular gasket 32, the limit cylinder 41 and the push rod 43 are all fixedly installed on the inner wall of the second sealing mechanism 3 through the connecting rod 47, wherein the reinforcing mechanism 4 The number is set to be multiple, and a plurality of reinforcement mechanisms 4 are arranged in a circular and equidistant state around the first annular gasket 31 and the second annular gasket 32, so that the plurality of reinforcement mechanisms 4 are placed in the inner cavity of the second sealing mechanism 3 The first pipe 101 and the second pipe 102 are provided with multi-directional enclosure support, thereby improving the firmness of the connection between the first pipe 101 and the second pipe 102 .

In a specific implementation, during the process of inserting the first annular gasket 31 into the space between the second annular gasket 32 and the first sealing frame 23, the second limiting block 45 is in contact with the first limiting block 42, so that The limit plate 44 is plugged into the inner cavity of the first limit block 42 until the second limit block 45 passes through the first limit block 42 and is limited on one side of the first limit block 42, so that the limit cylinder 41 and the limiting plate 44 are connected together, when there is water flowing through the first pipe 101 to the inner cavity of the second pipe 102, the water will continuously impact the push rod 43, and then the push rod 43 will increase with the increase of the water flow. Pushing the limiting plate 44 is always inserted deep into the inner cavity of the first limiting block 42 , thereby making the connection between the limiting cylinder 41 and the push rod 43 more firm.

The last few points should be explained: First, in the description of this application, it should be explained that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, which can be mechanical connection Or electrical connection, it can also be the internal communication of two components, it can be directly connected, "up", "down", "left", "right", etc. are only used to indicate the relative positional relationship, when the absolute position of the object being described Change, the relative positional relationship may change;

Secondly: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved, and other structures can refer to the usual design. In the case of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

Finally: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention within the scope of protection.

Claims (7)

1. A waterproof reinforcing structure at a pipe joint in pipe jacking construction of municipal engineering comprises a pipe jacking mechanism (1), wherein the pipe jacking mechanism (1) comprises a first pipe fitting (101) and a second pipe fitting (102);

the method is characterized in that: a first sealing mechanism (2) is fixedly installed between the first pipe fitting (101) and the second pipe fitting (102), a second sealing mechanism (3) is fixedly installed inside the first sealing mechanism (2), and a plurality of reinforcing mechanisms (4) are fixedly installed inside the second sealing mechanism (3);

first sealing mechanism (2) establish first sealed frame (23) at first pipe fitting (101) outer wall including the cover, the outer wall cover of second pipe fitting (102) is equipped with the sealed frame of second (24), second sealing mechanism (3) include the sealed pad of first annular (31) of fixed mounting on the sealed frame of second (24) inner wall, fixed mounting has the sealed pad of second annular (32) on the inner wall of first sealed frame (23), the equal fixed mounting in one side of the sealed pad of first annular (31) and the sealed pad of second annular (32) has a plurality of elasticity faggings (33) that are the arc setting.

2. The municipal works push pipe construction pipe joint department waterproof reinforced structure of claim 1, characterized in that: the first sealing mechanism (2) further comprises a first protection cover (21) arranged on the outer wall of the first pipe fitting (101), and a second protection cover (22) is arranged on the outer wall of the second pipe fitting (102).

3. The municipal works push pipe construction pipe joint department waterproof reinforced structure of claim 2, characterized in that: the outer walls of the first sealing frame (23) and the second sealing frame (24) are at least fixedly provided with two thread sleeves (28), at least two bolts (29) are in threaded connection with the inner portions of the first protective cover (21) and the second protective cover (22), the bolts (29) are in threaded connection with the inner portions of the thread sleeves (28), and the outer walls of the first sealing frame (23) and the second sealing frame (24) are respectively fixedly provided with a plurality of water-saving rings (27).

4. The municipal works push pipe construction pipe joint department waterproof reinforced structure of claim 3, characterized in that: fixed mounting has rubber gasbag (25) that are the setting of cavity form between first sealed frame (23) and second sealed frame (24), set up a plurality of through-holes (26) that are the setting of form of running through on the outer wall of rubber gasbag (25).

5. The municipal works push pipe construction pipe joint department waterproof reinforced structure of claim 1, characterized in that: the reinforcing mechanism (4) comprises a limiting cylinder (41) arranged on one side of the first annular sealing gasket (31), the limiting cylinder (41) is arranged in a hollow shape, and a plurality of first limiting blocks (42) are fixedly arranged on the inner wall of the limiting cylinder (41);

one side of second annular seal pad (32) is provided with push rod (43), the one end fixed mounting of push rod (43) has two limiting plates (44), fixed mounting has a plurality of second stopper (45) on the outer wall of limiting plate (44).

6. The municipal works push pipe construction pipe joint department waterproof reinforced structure of claim 5, characterized in that: the cross-sectional shapes of the first limiting block (42) and the second limiting block (45) are both set to be right-angled triangles, the push rod (43) and the first limiting block (42) are arranged on the same horizontal line, and the two limiting plates (44) are inserted into the inner cavity of the limiting cylinder (41).

7. The municipal works push pipe construction pipe joint department waterproof reinforced structure of claim 6, characterized in that: fixed mounting has wear-resisting gasket (46) between limiting plate (44) and second stopper (45), the equal fixed mounting in one side of limiting plate (44) is kept away from to spacing section of thick bamboo (41) and push rod (43) has linking pole (47), just link pole (47) fixed mounting is in the one side of corresponding first annular seal pad (31) and the sealed pad (32) of second annular seal.

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