High-pressure water spraying device for tube push bench

Abstract

The high-pressure water spraying device for the pipe jacking machine comprises a water spraying sleeve and a water spraying inner sleeve arranged in the water spraying sleeve in a sleeved mode, a bottom plate is arranged at the bottom of the water spraying inner sleeve, a one-way inflow device is arranged at the position, close to the top end, of the water spraying inner sleeve, and the one-way inflow device comprises a round base embedded into the inner wall of the water spraying inner sleeve. A bolt with a screw rod arranged upwards is arranged in the center of the round base, the screw rod is sequentially sleeved with first cloth clamping rubber, a pressing piece and second cloth clamping rubber from bottom to top and then covered with a nut, the first cloth clamping rubber and the second cloth clamping rubber are separated through the pressing piece, the longitudinal section of the pressing piece is in a T shape, and the first cloth clamping rubber and the second cloth clamping rubber are connected through a nut. And a plurality of circular holes are formed in the circumferential directions of the circular base and the pressing piece. The one-way flow-out structure composed of the two layers of cloth-sandwiched rubber can effectively prevent mud, muck and particulate matter from entering the water spraying device to cause pipeline blockage and failure, and the nozzle can be detached under the blockage condition so as to be cleaned or replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipe jacking construction technical field especially relates to a pipe jacking machine is with high pressure water device. BACKGROUND

[0002] In the pipe jacking construction process, when encountering the poor plastic flow of slag, mud cake is easy to produce under the pressure and stirring, and accidents such as stratum subsidence occur, the phenomenon of mud cake is not prevented, and certain high pressure water, foam, bentonite or polymer needs to be injected to fully improve the soil pressure balance with slag; Or use high pressure to assist cutter cutting, thereby improving the jacking efficiency.

[0003] The existing high pressure water device structure is usually composed of a sheet type check valve, a pressing plate and a cloth clamping rubber, the service life of the sheet type check valve is low, and after a period of use, it cannot be closed, which will cause slag, mud and the like to enter the pipeline, resulting in blockage and failure of the high pressure water device, and the installation mode is front-mounted, which cannot be checked and replaced during jacking, causing low construction efficiency and the like. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a pipe jacking machine is with high pressure water device, that is, reliable one-way fluid flow is constructed, slag, mud and the like are prevented from entering the pipeline, and when the cloth clamping rubber is damaged or the pipeline is blocked, it can be disassembled, replaced or cleaned, thereby ensuring the use reliability of the high pressure water device and the stable construction of the pipe jacking machine.

[0005] The technical scheme provided by the utility model is as follows:

[0006] The utility model discloses a pipe jacking machine is with high pressure water device, including the water spraying sleeve and the water spraying inner cover of the water spraying sleeve, the water spraying inner cover bottom is equipped with the bottom plate, the water spraying inner cover is equipped with the one-way flow device in the position of the top, the one-way flow device includes the round base of embedding the water spraying inner cover inner wall, the center position of the round base is equipped with the bolt of the screw rod upwards, the first cloth clamping rubber, the pressure part and the second cloth clamping rubber are successively set in the screw cap and are covered after the screw rod, the first cloth clamping rubber and the second cloth clamping rubber are separated by the pressure part, the longitudinal section of the pressure part is T-shaped, the round base and the pressure part are all circumferentially provided with a plurality of round holes.

[0007] Further, the pressure part includes a circular plate and a cylinder fixed below the circular plate, a plurality of round holes are circumferentially formed on the circular plate.

[0008] Further, the diameter of the round base is greater than the diameter of the circular plate and less than or equal to the outer diameter of the water spraying inner cover.

[0009] Furthermore, a baffle is provided between the second cloth-reinforced rubber and the nut.

[0010] Furthermore, the base plate is fixedly connected to the water spray sleeve by bolts.

[0011] Furthermore, the water spray inner sleeve includes an upper tube and a lower tube, and the upper tube and the lower tube are separated by a circular base and welded on the upper and lower sides thereof.

[0012] Furthermore, O-rings are provided between the upper cylinder and the inner wall of the water spray sleeve, and between the lower sleeve and the inner wall of the water spray sleeve.

[0013] Furthermore, sleeve seals are provided at the water inlet and water outlet of the water spray sleeve and the water spray inner sleeve.

[0014] Beneficial effects

[0015] The utility model realizes the effective spraying of high-pressure water through the nested structure of the water spray sleeve and the water spray inner sleeve, and the one-way inflow device composed of two layers of cloth-interposed rubber, a pressing piece and a nut, and prevents impurities such as mud and debris from flowing back into the device to cause blockage. When the cloth-interposed rubber is damaged or the pipeline is blocked, it can be disassembled for replacement or cleaning, thereby ensuring the reliability of the high-pressure water device and the stable construction of the pipe jacking machine.

[0016] This new high-pressure water spray device for pipe jacking machines features circular holes distributed around the base and compression element. These holes, combined with the rubber insert, form a one-way flow system. This dual-channel system enhances reliability and prevents mud and debris from flowing into and clogging the pipe. The sleeve can also be removed with bolts for flushing and replacement, ensuring effective use during pipe jacking operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a high-pressure water spraying device for a pipe jacking machine according to the present invention;

[0018] Figure 2 A partial enlarged view of the one-way inflow device.

[0019] Explanation of the accompanying reference numerals: 1. water spray sleeve; 2. water spray inner sleeve; 3. sleeve seal; 4. baffle; 5-1. first cloth-interposed rubber; 5-2. second cloth-interposed rubber; 6. pressing part. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] Example 1

[0024] like Figure 1 As shown, this embodiment provides a high-pressure water spraying device for a pipe jacking machine, comprising a water spraying sleeve 1 and a water spraying inner sleeve 2 sleeved in the water spraying sleeve 1, the bottom of the water spraying inner sleeve 2 is provided with a bottom plate, and the position of the water spraying inner sleeve 2 near the top is provided with a one-way inflow device, the one-way inflow device comprises a circular base embedded in the inner wall of the water spraying inner sleeve, the center position of the circular base is provided with a bolt with a screw rod facing upward, the screw rod is sequentially sleeved with a first cloth-reinforced rubber 5-1, a clamping piece 6 and a second cloth-reinforced rubber 5-2 from bottom to top and then covered with a nut, the first cloth-reinforced rubber 5-1 and the second cloth-reinforced rubber 5-3 are separated by the clamping piece 6, the longitudinal section of the clamping piece 6 is T-shaped, and the circular base and the clamping piece 6 are both circumferentially provided with a plurality of circular holes.

[0025] This device achieves effective high-pressure water jetting through the nested structure of the water spray sleeve and the water spray inner sleeve, and the one-way inflow device composed of two layers of cloth-interposed rubber, a clamping piece and a nut, and prevents mud, debris and other impurities from flowing back into the device to cause blockage. When the cloth-interposed rubber is damaged or the pipeline is blocked, it can be disassembled for replacement or cleaning, thereby ensuring the reliability of the high-pressure water device and the stable construction of the pipe jacking machine.

[0026] Embodiment 2

[0027] As Figure 1-2 shown, the embodiment provides a high-pressure water spraying device for a pipe jacking machine, which comprises a water spraying sleeve 1, a water spraying inner sleeve 2 and a one-way inflow device, the one-way inflow device mainly comprises a circular base, a baffle 4, two layers of cloth-rubber, a pressing member 6 and bolts, the bolts are installed at the center of the circular base and the screw rods are arranged upwards, the screw rods are sequentially sleeved with a first installation cloth-rubber 5-1, the pressing member 6, a second cloth-rubber 5-3 and the baffle 4 from bottom to top, and are fixed by a nut, the first cloth-rubber 5-1 and the second cloth-rubber 5-2 are separated by the pressing member 6, the longitudinal section of the pressing member 6 is in T shape, and the circular base and the pressing member 6 are both circumferentially provided with a plurality of round holes.

[0028] Specifically, the circular base is provided with circumferentially distributed round holes and forms a first one-way inflow channel with the first cloth-rubber 5-1, and the pressing member 6 is also provided with circumferentially distributed round holes and forms a second one-way inflow channel with the second cloth-rubber 5-2, so that the two one-way inflow channels can more reliably prevent the entry of slag, mud and other sundries into the water spraying inner sleeve 2.

[0029] In the embodiment, the pressing member 6 comprises a circular plate and a cylinder fixed below the circular plate, and the circular plate is circumferentially provided with a plurality of round holes.

[0030] Specifically, the circular plate can be provided with six round holes, and the circular base is symmetrically provided with two round holes.

[0031] In the embodiment, the diameter of the circular base is greater than the diameter of the circular plate and is equal to the outer diameter of the water spraying inner sleeve 2.

[0032] In the embodiment, the second cloth-rubber 5-2 and the nut are provided with the baffle 4.

[0033] In the embodiment, the bottom plate is fixedly connected with the water spraying sleeve 1 through the bolts, when the cloth-rubber in the water spraying inner sleeve 2 is worn out and the pipeline needs to be cleaned or blocked, the water spraying inner sleeve 2 can be disassembled from the back of the water spraying sleeve 1 for cleaning or replacement.

[0034] In the embodiment, the water spraying inner sleeve 2 comprises an upper cylinder and a lower cylinder, and the upper cylinder and the lower cylinder are separated by the circular base and are welded on the upper and lower sides of the circular base.

[0035] In the embodiment, O-rings are arranged between the upper cylinder and the inner wall of the water spraying sleeve 1 and between the lower cylinder and the inner wall of the water spraying sleeve 1 to ensure the sealing reliability.

[0036] In this embodiment, the water spray sleeve 1 and the water spray inner sleeve 2 are provided with sleeve seals 3 at the water inlet and the water outlet, and are fixed by bolts to prevent leakage of the fluid therein and ensure the spraying pressure.

[0037] The high-pressure water spraying device for a pipe jacking machine of the present invention can form a one-way flow channel through the pressing piece 24 and the second cloth-reinforced rubber 5-2 when the medium flows in the reverse direction. When the one-way flow channel here fails, there is still a one-way flow channel formed on the circular base and the first cloth-reinforced rubber 5-1, which can better prevent debris and mud from entering the pipeline, thereby extending the service life of the device.

[0038] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation on the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the above-described technical content to make many possible changes and modifications to the present invention, or modify it into an equivalent embodiment with equivalent variations. Therefore, any changes, modifications, equivalent variations, and modifications made to the above embodiments based on the technology of the present invention that do not depart from the content of the present invention are within the scope of protection of the present invention.

Claims

1. A high-pressure water spraying device for a pipe jacking machine, characterized in that: It includes a water spray sleeve and a water spray inner sleeve sleeved in the water spray sleeve, the bottom of the water spray inner sleeve is provided with a bottom plate, and the position of the water spray inner sleeve near the top is provided with a one-way inflow device, the one-way inflow device includes a circular base embedded in the inner wall of the water spray inner sleeve, and the center position of the circular base is provided with a bolt with a screw facing upward. The screw is sequentially sleeved with the first cloth-reinforced rubber, the clamping piece and the second cloth-reinforced rubber from bottom to top and then covered with a nut. The first cloth-reinforced rubber and the second cloth-reinforced rubber are separated by the clamping piece, and the longitudinal section of the clamping piece is T-shaped. The circular base and the clamping piece are both circumferentially provided with a plurality of circular holes.

2. The high-pressure water spraying device for a pipe jacking machine according to claim 1, characterized in that: The pressing member includes a circular plate and a cylinder fixed below the circular plate. A plurality of circular holes are opened circumferentially on the circular plate.

3. The high-pressure water spraying device for a pipe jacking machine according to claim 2, characterized in that: The diameter of the circular base is greater than the diameter of the circular plate and is less than or equal to the outer diameter of the water spray inner sleeve.

4. The high-pressure water spraying device for a pipe jacking machine according to claim 1, characterized in that: A baffle is provided between the second cloth-clamping rubber and the nut.

5. The high-pressure water spraying device for a pipe jacking machine according to claim 1, characterized in that: The bottom plate is fixedly connected to the water spray sleeve via bolts.

6. The high-pressure water spraying device for a pipe jacking machine according to claim 1, characterized in that: The water spray inner sleeve comprises an upper cylinder and a lower cylinder, and the upper cylinder and the lower cylinder are separated by a circular base and welded at the upper and lower sides thereof.

7. The high-pressure water spraying device for a pipe jacking machine according to claim 6, characterized in that: O-rings are provided between the upper cylinder and the inner wall of the water spray sleeve, and between the lower sleeve and the inner wall of the water spray sleeve.

8. The high-pressure water spraying device for a pipe jacking machine according to claim 1, characterized in that: Sleeve seals are provided at the water inlet and water outlet of the water spray sleeve and the water spray inner sleeve.

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