Pipe jacking hole water stopping device

Abstract

The utility model discloses a pipe jacking hole water stopping device, and particularly relates to the field of pipe jacking construction, the pipe jacking hole water stopping device comprises a hole main body, a pipe jacking body is inserted into the hole main body, a supporting plate is arranged on the side face of the hole main body, and a protection mechanism is arranged in the supporting plate. The protection mechanism comprises a storage box, a support, a mounting block, a smearing brush, a rotating gear, a stress gear, a lead screw, a sliding rod, a connecting rod, a pressing block, a liquid inlet and an opening. Lubricating oil is poured into the storage box through the liquid inlet, the smearing brush is pushed to rotate through movement of the jacking pipe body, the pressing block is controlled to move through the rotating gear, the stress gear, the lead screw, the sliding rod, the support and the connecting rod, the lubricating oil in the storage box is conveyed to the smearing brush through the opening, and the surface of the jacking pipe body is smeared with the lubricating oil. Therefore, friction between the jacking pipe body and the elastic rubber ring is reduced, abrasion of the elastic rubber ring is reduced, and the service life of the elastic rubber ring is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of pipe jacking construction, and more specifically to a water-stopping device for a pipe jacking hole. Background Art

[0002] Pipe jacking construction is a trenchless construction method, which is a pipeline burial construction technology with no excavation or less excavation. Pipe jacking construction is to use the jacking force generated by the jacking equipment in the working pit to overcome the friction between the pipeline and the surrounding soil, push the pipeline into the soil according to the designed slope, and transport the soil away.

[0003] The existing patent (publication number: 201820210163.6) discloses a water-stop device for a jacking hole, including a hole and a water-stop assembly, wherein the water-stop assembly is located on the outer wall of the hole and is fixedly connected to the hole; the water-stop assembly includes a rubber plate, a connecting plate, a fixing plate and a flap; the rubber plate is located on one side of the hole and extends along the outer wall of the hole to the inside of the hole; the connecting plate is located on one side of the rubber plate and contacts the rubber plate; the fixing plate is located on one side of the connecting plate and is fixedly connected to the connecting plate; the flap is located on one side of the fixing plate and is connected to the fixing plate and rotates freely around one end of the fixing plate. The water-stop device for a jacking hole utilizes the bending of the rubber plate and the rotation of the flap to contact the rubber plate and the flap when the jacking machine moves to the inside of the hole, so that a sealing protection is formed between the surrounding of the jacking machine and the hole, effectively preventing the thixotropic mud from overflowing during the construction process. At the same time, the water-stop assembly has a simple structure and is easy to assemble, which is suitable for various situations and is conducive to popularization and use.

[0004] The patent document cited above is about installing a rubber sheet to stop water at the opening of the jacking pipe. When the jacking pipe is pushed in over a long distance, the rubber sheet is easily damaged due to wear, thereby reducing the service life of the rubber sheet and resulting in poor water-stopping effect. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a water-stopping device for a jacking pipe hole, by applying lubricating oil to the surface of the jacking pipe body, thereby reducing the friction between the jacking pipe body and the elastic rubber ring, reducing the wear of the elastic rubber ring, and thus increasing the service life of the elastic rubber ring.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water-stopping device for a jacking pipe opening, comprising an opening body, a jacking pipe body is inserted into the opening body, a support plate is arranged on the side of the opening body, a plurality of protection mechanisms are evenly arranged on the support plate around the circumference of the jacking pipe body, the protection mechanism comprises a storage box, and the storage box is installed in the support plate;

[0007] A bracket is installed on the side wall of the storage box, and a mounting block is installed on the side wall of the storage box and below the bracket. A smear brush is passed through the inside of the mounting block, and the smear brush abuts against the outer wall of the top pipe body; rotating gears are installed at both ends of the smear brush, and the rotating gears are meshed with force-bearing gears, and the force-bearing gears are connected to the screw rod that passes through the mounting block and the side wall of the bracket;

[0008] The lead screw in the bracket is threadedly connected to the slide rod; a connecting rod is installed at the lower end of the slide rod, and a pressure block is installed after the lower end of the connecting rod penetrates the upper side wall of the storage box. An opening is opened at the lower end of the storage box and just above the smear brush.

[0009] Optionally, the support plate has a protruding annular portion on one side close to the hole body.

[0010] Optionally, a water-stopping mechanism is provided between the side of the hole body and the side of the support plate, and the water-stopping mechanism includes an elastic rubber ring, a mounting plate, a connecting pipe, an airbag and an air pump. The support plate has an annular portion with an elastic rubber ring on its side, a mounting plate is provided on a side of the elastic rubber ring close to the hole body, a connecting pipe is provided inside the mounting plate, one end of the connecting pipe is connected to the airbag, and the end of the connecting pipe away from the airbag is connected to the air pump, and the airbag surrounds the outer periphery of the top pipe body.

[0011] Optionally, the mounting plate, the elastic rubber ring and the annular portion of the support plate are all provided with mounting holes, and expansion screws are threadedly connected to the mounting holes.

[0012] Furthermore, the airbag is in a ring shape, and fits with the outer wall of the top pipe body after being inflated.

[0013] Optionally, a sliding groove is provided on the inner side wall of the bracket, and both ends of the sliding rod are located in the sliding groove.

[0014] Optionally, a liquid inlet is provided on a side wall of the storage box.

[0015] The technical effects and advantages of the utility model include:

[0016] 1. Compared with the prior art, the device pours lubricating oil into the storage box through the liquid inlet, drives the coating brush to rotate by moving the top pipe body, controls the movement of the pressing block by rotating gears, force gears, screws, sliding rods, brackets and connecting rods, transmits the lubricating oil inside the storage box to the coating brush through the opening, and applies lubricating oil to the surface of the top pipe body, thereby reducing the friction between the top pipe body and the elastic rubber ring, reducing the wear of the elastic rubber ring, and thus increasing the service life of the elastic rubber ring.

[0017] 2. Compared with the prior art, the device pushes the elastic rubber ring to deform through the jacking pipe body, blocks the elastic rubber ring through the mounting plate to limit its deformation, inflates the air bag through the air pump and the connecting pipe to make it contact with the jacking pipe body, achieves a water-stopping effect through the air bag, and achieves a secondary water-stopping effect through the elastic rubber ring, thereby preventing mud in the soil or groundwater from flowing out of the gap between the hole body and the jacking pipe body, avoiding troubles in the construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the coating brush and the jacking pipe body of the utility model;

[0021] Figure 3 This is a schematic diagram of the protection mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the water-stopping mechanism of the utility model.

[0023] The accompanying drawings are marked as follows:

[0024] 1. The main body of the opening;

[0025] 2. Pipe jacking body;

[0026] 3. Support plate;

[0027] 4. Protective mechanism; 401. Storage box; 402. Bracket; 403. Mounting block; 404. Applicator brush; 405. Rotating gear; 406. Forced gear; 407. Screw rod; 408. Sliding rod; 409. Connecting rod; 410. Pressing block; 411. Liquid inlet; 412. Opening;

[0028] 5. Water stop mechanism; 501. Elastic rubber ring; 502. Mounting plate; 503. Connecting pipe; 504. Air bag; 505. Air pump;

[0029] 6. Mounting holes;

[0030] 7. Expansion screws. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See attached Figures 1 to 3 A jacking pipe hole water-stopping device shown in the figure comprises a hole body 1, a jacking pipe body 2 is inserted into the hole body 1, a support plate 3 is arranged on the side of the hole body 1, the support plate 3 is located on the outside of the jacking pipe body 2, and has a protruding annular portion on the side close to the hole body 1; a plurality of protection mechanisms 4 are evenly arranged on the support plate 3 around the circumference of the jacking pipe body 2, and the protection mechanism 4 comprises a storage box 401, a bracket 402, a mounting block 403, a smear brush 404, a rotating gear 405, a force-bearing gear 406, a screw 407, a sliding rod 408, a connecting rod 409, a pressing block 410, a liquid inlet 411 and an opening 412, wherein:

[0033] A storage box 401 is fixedly connected inside the support plate 3, and a side wall of the storage box 401 is fixedly connected to a bracket 402. A mounting block 403 is fixedly connected to the side wall of the storage box 401 and located below the bracket 402. A smear brush 404 runs through the inside of the mounting block 403. Rotating gears 405 are fixedly connected at both ends of the smear brush 404. A force-bearing gear 406 is meshed at the top of the rotating gear 405. The force-bearing gear 406 is fixedly connected to a screw rod 407 that runs through the mounting block 403 and the side wall of the bracket 402; the screw rod 407 It can rotate in the mounting block 403 and the side wall of the bracket 402. The lead screw 407 in the bracket 402 is threadedly connected to the slide rod 408. The lower end of the slide rod 408 is fixedly connected to the connecting rod 409. The lower end of the connecting rod 409 passes through the upper side wall of the storage box 401 and is fixedly connected to the pressing block 410. The side wall of the storage box 401 is fixedly connected to the liquid inlet 411. The lower end of the storage box 401 and the opening 412 is opened just above the smear brush 404, and the smear brush 404 abuts against the outer wall of the top tube body 2. Preferably, the protective mechanism 4 is provided with four groups, so the positions of the four groups of smear brushes 404 are distributed in equal circles about the center of the support plate 3. The inner side wall of the bracket 402 is provided with a sliding groove. The slide rod 408 forms a sliding structure with the side wall of the bracket 402 through the lead screw 407 and the force gear 406.

[0034] See also Figure 1 , Figure 4A water-stop mechanism 5 is provided between the side of the hole body 1 and the side of the support plate 3. The water-stop mechanism 5 includes an elastic rubber ring 501, a mounting plate 502, a connecting pipe 503, an air bag 504 and an air pump 505. The side of the annular portion of the support plate 3 is provided with an elastic rubber ring 501. A mounting plate 502 is provided on a side of the elastic rubber ring 501 close to the hole body 1. A connecting pipe 503 is provided inside the mounting plate 502. One end of the connecting pipe 503 is fixedly connected to the air bag 504. The end of the connecting pipe 503 away from the air bag 504 is fixedly connected to the air pump 505. The air bag 504 surrounds the outer periphery of the top pipe body 2. In a step, when the top pipe body 2 enters the cave entrance body 1, it will push the elastic rubber ring 501 to deform. The elastic rubber ring 501 is blocked by the mounting plate 502 to limit its deformation. The air bag 504 is inflated by the air pump 505 and the connecting pipe 503, so that the air bag 504 is inflated and contacts the top pipe body 2. The air bag 504 is provided to achieve a water-stopping effect. At the same time, the elastic rubber ring 501 is provided to achieve a secondary water-stopping effect, thereby preventing mud or groundwater in the soil from flowing out of the gap between the cave entrance body 1 and the top pipe body 2, causing the terrain of the construction area to change, thereby causing trouble to the construction.

[0035] As a preferred embodiment, the mounting plate 502, the elastic rubber ring 501 and the annular portion of the support plate 3 are all provided with a mounting hole 6, and the mounting hole 6 is threadedly connected with an expansion screw 7; further, the expansion screw 7 is inserted into the mounting hole 6, and then the expansion screw 7 is tightened to fix the protective mechanism 4 and the water-stop mechanism 5 on the hole body 1.

[0036] As a preferred embodiment, the airbag 504 is annular in shape, and when inflated, the airbag 504 fits against the outer wall of the top tube body 2; the airbag 504 is inflated by the air pump 505 and the connecting tube 503, and the annular airbag 504 always presses against the top tube body 2, achieving a water-stopping effect.

[0037] Please refer to the attached Figure 1 To Attachment Figure 4 The working process of the jacking pipe hole water-stopping device described in the utility model is described in detail.

[0038] When using this type of jacking pipe hole water-stopping device, first insert the expansion screw 7 into the installation hole 6, then tighten the expansion screw 7, fix the protection mechanism 4 and the water-stopping mechanism 5 on the hole body 1, and pour the lubricating oil into the storage box 401 through the liquid inlet 411. When the jacking pipe body 2 is under construction, it is necessary to pass the jacking pipe body 2 through the support plate 3. At this time, the jacking pipe body 2 will push the smear brush 404 to rotate when moving, and then drive the rotating gear 405 to rotate, so that it drives the force gear 406 to rotate. Under the action of the force gear 406, the screw rod 407 is driven to rotate, and the sliding rod 408 is pushed to move along the sliding groove of the side wall of the bracket 402. The sliding groove serves the purpose of limiting. When the sliding rod 408 moves, it will drive the pressure block 410 to move in the same direction through the connecting rod 409. , the lubricating oil inside the storage box 401 is transferred to the smear brush 404 through the opening 412, and the lubricating oil is applied to the surface of the top tube body 2. At the same time, when the top tube body 2 enters the hole body 1, it will push the elastic rubber ring 501 to deform, and the elastic rubber ring 501 is blocked by the mounting plate 502 to limit its deformation, and the air bag 504 is inflated by the air pump 505 and the connecting pipe 503, so that the air bag 504 is inflated and contacts with the top tube body 2. The air bag 504 is provided to achieve a water-stopping effect, and the elastic rubber ring 501 is provided to achieve a secondary water-stopping effect, thereby reducing the friction between the top tube body 2 and the elastic rubber ring 501, reducing the wear of the elastic rubber ring 501, and thus increasing the service life of the elastic rubber ring 501.

[0039] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A pipe jacking hole water stopping device, comprising a hole main body, a pipe jacking body is inserted into the hole main body, and a support plate is arranged on the side of the hole main body, characterized in that: A plurality of protection mechanisms are evenly arranged on the support plate around the circumference of the top pipe body, and the protection mechanism includes a storage box, and the storage box is installed in the support plate; A bracket is installed on the side wall of the storage box, and a mounting block is installed on the side wall of the storage box and below the bracket. A smear brush is passed through the inside of the mounting block, and the smear brush abuts against the outer wall of the top pipe body; rotating gears are installed at both ends of the smear brush, and the rotating gears are meshed with force-bearing gears, and the force-bearing gears are connected to the screw rod that passes through the mounting block and the side wall of the bracket; The lead screw in the bracket is threadedly connected to the slide rod; a connecting rod is installed at the lower end of the slide rod, and a pressure block is installed after the lower end of the connecting rod penetrates the upper side wall of the storage box. An opening is opened at the lower end of the storage box and just above the smear brush.

2. The jacking pipe hole water stopping device according to claim 1, characterized in that: The support plate has a protruding annular portion on one side close to the hole body.

3. The jacking pipe hole water stopping device according to claim 2, characterized in that: A water-stopping mechanism is provided between the side surface of the hole body and the side surface of the support plate, and the water-stopping mechanism includes an elastic rubber ring, a mounting plate, a connecting pipe, an air bag and an air pump. The side surface of the annular portion of the support plate is provided with an elastic rubber ring, a mounting plate is provided on a side surface of the elastic rubber ring close to the hole body, a connecting pipe is provided inside the mounting plate, one end of the connecting pipe is connected to the air bag, and the end of the connecting pipe away from the air bag is connected to the air pump, and the air bag surrounds the outer periphery of the top pipe body.

4. The jacking pipe hole water stopping device according to claim 3, characterized in that: The mounting plate, the elastic rubber ring and the annular portion of the supporting plate are all provided with mounting holes, and expansion screws are connected with the inner threads of the mounting holes.

5. The jacking pipe hole water stopping device according to claim 4, characterized in that: The airbag is in a ring shape, and fits with the outer wall of the top pipe body after being inflated.

6. The jacking pipe hole water stopping device according to claim 1, characterized in that: A sliding groove is provided on the inner side wall of the bracket, and two ends of the sliding rod are located in the sliding groove.

7. The jacking pipe hole water stopping device according to claim 1, characterized in that: The side wall of the storage box is provided with a liquid inlet.

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