Cement pipe butt joint device

Abstract

The utility model discloses a cement pipe butt joint device, which relates to the field of municipal engineering, is used for the butt joint position of an annular steel ring and a cement pipe body, and comprises a fixed strip shell fixed on the inner wall of the annular steel ring, and a sliding opening is formed in the fixed strip shell; the screw rod is rotationally arranged in the fixed strip shell; the nut block is in threaded connection outside the lead screw; one end of the swing rod is hinged with the nut block, and the other end extends out of the fixed strip shell from the sliding opening; one end of the concave frame is hinged to the fixed strip shell, the other end of the concave frame is hinged to an abutting plate, and the corner, close to one side of the fixed strip shell, of the concave frame is hinged to the other end of the swing rod, so that the abutting plate has a moving stroke close to or away from the inner wall of the cement pipe body; the hand wheel rod is fixed to one end of the lead screw. The hand wheel rod is rotated to enable the lead screw to rotate and the nut block to move, so that the swing rod is driven to rotate during moving, the concave frame is driven to swing, the abutting plate is pushed to abut against the inner wall of the cement pipe body, fixed connection of the annular steel ring and the cement pipe body is achieved, disjunction is prevented, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal engineering construction, and particularly relates to a cement pipe butt joint device. Background Technique

[0002] Pipe jacking construction is a construction technology for non-excavation pipe laying in municipal construction. Its advantages are that it has little or no impact on the surrounding environment, requires a small construction site, produces little noise, and can operate deep underground, which is an incomparable advantage of open-cut pipe laying. The non-excavation engineering technology completely solves the problems such as damage to urban buildings and traffic jams during pipe laying construction, and highlights its advantages in stabilizing soil layers and environmental protection. This is very important for cities with busy traffic, dense population, numerous ground buildings, and complex underground pipelines, and it will create a clean, comfortable and beautiful environment for the city.

[0003] A pipe jacking for drainage pipe construction disclosed in the publication number CN219673490U includes a cement pipe body, and the two ends of the inner cavity of the cement pipe body are communicated. Among them: an annular steel ring is sleeved on the outer periphery of one end of the cement pipe body, an annular gasket is arranged on the end face of the cement pipe body within the annular steel ring, the annular is sleeved on the inner periphery of the annular steel ring, and a first annular recess is arranged on the outer periphery of the other end of the cement pipe body, and the outer periphery of the first annular recess can be inserted into the annular steel ring of another cement pipe body to form a continuous pipeline. One end of the pipe jacking of this utility model has an annular steel ring and annular vouchers, and the other end has an annular recess. When the pipe jackings are connected to each other, it can ensure that the connection between two adjacent butt-jointed pipe jackings is tighter, prevent safety accidents caused by loose connection of the pipe jackings during pipe jacking construction, and at the same time, the pipe jackings are not easy to break during hoisting and transportation or during the jacking process. However, in actual use of this pipe jacking, after the pipe is lowered, cement needs to be smeared on the inner sides of two adjacent pipe jackings to ensure tighter connection of adjacent pipes. The tail of one pipe jacking is sleeved in the annular steel ring at the head of another pipe jacking to achieve continuous socket connection of the pipe jackings to form a drainage pipeline. The operation of smearing cement after connecting two adjacent pipe jackings is time-consuming in actual use and affects the construction efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a cement pipe butt joint device to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides a cement pipe butt joint device for the butt joint of an annular steel ring and a cement pipe body, including:

[0006] A fixed strip shell is fixed on the inner wall of the annular steel ring, and a sliding opening is arranged on the fixed strip shell;

[0007] A lead screw is rotatably arranged in the fixed strip shell;

[0008] A nut block, threadedly connected to the outside of the lead screw;

[0009] A swing rod, one end of which is hinged to the nut block, and the other end extends from the sliding opening to the outside of the fixed strip housing;

[0010] A concave-shaped frame, one end of the concave-shaped frame is hinged to the fixed strip housing, the other end is hinged with a pressing plate, and the corner of the concave-shaped frame close to the fixed strip housing is hinged to the other end of the swing rod, so that the pressing plate has a movable stroke of being close to or away from the inner wall of the cement pipe body; and,

[0011] A handwheel rod, fixed to one end of the lead screw, for driving the lead screw to rotate.

[0012] Further, a telescopic rod is hinged to the inner bottom wall of the concave-shaped frame, the other end of the telescopic rod is hinged to the pressing plate, and a spring is sleeved outside the telescopic rod.

[0013] Further, the telescopic rod is a hydraulic rod.

[0014] Further, an anti-slip pad is fixed to the side of the pressing plate close to the inner wall of the cement pipe body.

[0015] Further, the anti-slip pad is detachably connected to the pressing plate.

[0016] Further, the side of the anti-slip pad away from the pressing plate is an arc surface, and the radian of the arc surface is adapted to the diameter of the cement pipe body.

[0017] Further, the inner wall of the fixed strip housing is frictionally connected to the side wall of the nut block.

[0018] Further, the supporting material of the annular steel ring is a metal material.

[0019] Further, the fixed strip housing and the annular steel ring are detachably connected by a bolt fixing method.

[0020] Compared with the prior art, the beneficial effects of the present utility model are: A cement pipe docking device provided by the present utility model drives the lead screw to rotate by rotating the handwheel rod, the nut block displaces on the lead screw, thereby driving the swing rod to rotate while moving, driving the concave-shaped frame to swing, and further pushing the pressing plate to press against the inner wall of the cement pipe body, realizing the fixed connection between the annular steel ring and the cement pipe body, preventing disconnection, ensuring that the adjacent pipes are connected more tightly, and eliminating the need for on-site cement application, which can effectively improve the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a docking schematic diagram of the annular steel ring and the cement pipe body;

[0022] Figure 2 Schematic diagram of the installation of the cement pipe docking device provided by the present utility model in the annular steel ring and the cement pipe body;

[0023] Figure 3 For Figure 2 Schematic three-dimensional structure diagram outside the annular steel ring.

[0024] In the figure: 1, annular steel ring; 2, cement pipe body; 3, fixed strip shell; 31, sliding opening; 4, screw rod; 5, nut block; 6, swing rod; 7, concave frame; 8, pressing plate; 9, handwheel rod; 10, telescopic rod; 11, spring; 12, anti-slip pad; 13, arc surface. Specific embodiments

[0025] Please refer to Figures 1 to 3 As shown, the present utility model provides a cement pipe docking device for the docking part of the annular steel ring 1 and the cement pipe body 2, including a fixed strip shell 3, a screw rod 4, a nut block 5, a swing rod 6, a concave frame 7 and a handwheel rod 9. The fixed strip shell 3 is fixed on the inner wall of the annular steel ring 1, and a sliding opening 31 is provided on the fixed strip shell 3; the screw rod 4 is rotatably arranged in the fixed strip shell 3; the nut block 5 is threadedly connected outside the screw rod 4; one end of the swing rod 6 is hinged to the nut block 5, and the other end extends out of the fixed strip shell 3 from the sliding opening 31; one end of the concave frame 7 is hinged to the fixed strip shell 3, and the other end is hinged with a pressing plate 8, and the corner of the concave frame 7 close to the fixed strip shell 3 is hinged to the other end of the swing rod 6, so that the pressing plate 8 has a moving stroke of approaching or departing from the inner wall of the cement pipe body 2; the handwheel rod 9 is fixed at one end of the screw rod 4 for driving the screw rod 4 to rotate.

[0026] During use, after the annular steel ring 1 and the cement pipe body 2 are docked first, by rotating the handwheel rod 9, the screw rod 4 is driven to rotate, and the nut block 5 displaces on the screw rod 4, thereby driving the swing rod 6 to rotate while moving, driving the concave frame 7 to swing, and further pushing the pressing plate 8 to press against the inner wall of the cement pipe body 2, realizing the fixed connection between the annular steel ring 1 and the cement pipe body 2, preventing disconnection, ensuring that the connection of adjacent pipes is tighter, and there is no need to smear cement on site, which can effectively improve the construction efficiency.

[0027] In actual use, according to the diameters of the annular steel ring 1 and the cement pipe body 2, multiple cement pipe docking devices can be arranged at intervals along the circumferential direction of the pipe body. Two symmetrically arranged cement pipe docking devices can be set, or four equally spaced circumferentially arranged cement pipe docking devices can be set, so that multiple pressing plates 8 jointly press against the inner wall of the cement pipe body 2 more firmly, preventing the cement pipe from shifting during jacking, and improving the laying quality and efficiency of the cement pipe.

[0028] Furthermore, a telescopic rod 10 is also hinged to the inner bottom wall of the concave frame 7. The other end of the telescopic rod 10 is hinged to the pressing plate 8, and a spring 11 is sleeved outside the telescopic rod 10.

[0029] When the pressing plate 8 rotates driven by the concave frame 7, during the process of the pressing plate 8 pressing against the inner wall surface of the cement pipe body 2, due to the change in the rotation angle, there is a certain compressive force on the telescopic rod 10 to drive the telescopic rod 10 to contract, thereby compressing the spring 11. The spring 11 is compressed and deformed to generate an elastic force, which can be applied reversely on the pressing plate 8, so that the pressing plate 8 always maintains the firmness of pressing against the inner wall of the cement pipe body 2.

[0030] Specifically, the telescopic rod 10 is a hydraulic rod. The telescopic rod 10 can also be composed of two sleeved fixed sleeves and a moving rod. A rubber piston is provided at the end of the moving rod located inside the fixed sleeve, and the rubber piston is frictionally connected to the fixed sleeve.

[0031] Furthermore, an anti-slip pad 12 is fixed on the side of the pressing plate 8 close to the inner wall of the cement pipe body 2, which helps to increase the friction between the pressing plate 8 and the inner wall of the cement pipe body 2, thereby increasing the adsorption force between the pressing plate 8 and the inner wall of the cement pipe body 2 and improving the firmness of the pressing plate 8 pressing against the cement pipe body 2.

[0032] Preferably, the anti-slip pad 12 is detachably connected to the pressing plate 8, and the detachable connection facilitates the regular replacement of the anti-slip pad 12.

[0033] Furthermore, referring to Figure 3 As shown, the side of the anti-slip pad 12 away from the pressing plate 8 is an arc surface 13, and the radian of the arc surface 13 is adapted to the diameter of the cement pipe body 2. The arc-shaped side helps to increase the contact area between the anti-slip pad 12 and the cement pipe body 2 and improve the anti-slip effect.

[0034] Furthermore, the inner wall of the fixed strip shell 3 is frictionally connected to the side wall of the nut block 5, which can restrict the axial rotation of the nut block 5 without affecting its displacement.

[0035] Specifically, the supporting material of the annular steel ring 1 is a metal material, and the fixed strip shell 3 and the annular steel ring 1 are detachably connected by means of bolt fixation. The metal material has high strength and long service life. The detachable connection by means of bolt fixation is convenient for subsequent maintenance and replacement, and can be recycled and reused.

[0036] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A cement pipe docking device, used for the docking of an annular steel ring and a cement pipe body, characterized in that: include: A fixed strip shell is fixed on the inner wall of the annular steel ring, and a sliding opening is provided on the fixed strip shell; A screw rod is rotatably disposed in the fixed bar housing; A nut block, threadedly connected to the outside of the screw rod; A swing rod, one end of which is hinged to the nut block, and the other end of which extends from the sliding opening to the outside of the fixed bar housing; A concave frame, one end of which is hinged to the fixed bar shell, and the other end of which is hinged to a pressing plate, and the corner of the concave frame close to the fixed bar shell is hinged to the other end of the swing rod, so that the pressing plate has a movable stroke of being close to or away from the inner wall of the cement pipe body; and A handwheel rod is fixed to one end of the screw rod and is used to drive the screw rod to rotate.

2. The cement pipe docking device according to claim 1, characterized in that: The inner bottom wall of the concave frame is also hinged with a telescopic rod, the other end of the telescopic rod is hinged with the abutting plate, and a spring is sleeved on the outer side of the telescopic rod.

3. The cement pipe docking device according to claim 2, characterized in that: The telescopic rod is a hydraulic rod.

4. The cement pipe docking device according to claim 1, characterized in that: An anti-skid pad is fixed on one side of the abutting plate close to the inner wall of the cement pipe body.

5. The cement pipe docking device according to claim 4, characterized in that: The anti-slip pad is detachably connected to the abutting plate.

6. The cement pipe docking device according to claim 4, characterized in that: The side of the anti-slip pad away from the abutting plate is an arc-shaped surface, and the curvature of the arc-shaped surface is adapted to the diameter of the cement pipe body.

7. The cement pipe docking device according to claim 1, characterized in that: The inner wall of the fixing bar housing is frictionally connected to the side wall of the nut block.

8. The cement pipe docking device according to claim 1, characterized in that: The supporting material of the annular steel ring is metal.

9. The cement pipe docking device according to claim 8, characterized in that: The fixing strip shell and the annular steel ring are detachably connected by bolt fixing.

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