Pneumatic grouting pump capable of preventing output port from overflowing

Abstract

The utility model discloses a pneumatic grouting pump capable of preventing overflow of an output port, and relates to the technical field of grouting pumps. The pneumatic grouting pump capable of preventing the output port from overflowing comprises a grouting pump structure and a self-locking type displacement structure, the self-locking type displacement structure comprises a movable base, and a positioning device is movably mounted in the movable base through a mounting port; according to the pneumatic grouting pump capable of preventing overflow of the output port, a self-locking displacement structure is arranged, the grouting pump structure can be driven to move to a designated position through four universal wheels below the movable base, a built-in motor in a driving box is matched, and a displacement rod on the outer side of a threaded ring can be driven through a screw to press a springback plate downwards; when the grouting pump body moves, the springback plate drives the ground contact plate to gradually contact with the ground, so that the ground contact plate replaces universal wheels to lift the movable base, the movable base can be locked at a designated position after movement is completed, the situation that the grouting pump body is prone to deviation is avoided, and normal use of the grouting pump body is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to grouting pump technical field, concretely is a pneumatic grouting pump of preventing output mouth overflow. BACKGROUND

[0002] The pneumatic grouting pump adopts compressed air as power source, utilizes the large acting area ratio of cylinder and grouting cylinder, so that the cylinder can generate high injection pressure with small air pressure, and is suitable for grouting, water plugging, gap filling, broken rock reinforcement and other engineering in mine, tunnel, water conservancy, subway, building and bridge construction sites, and can realize single-component grout injection or double-component grout injection.

[0003] Through the search, in the patent announcement No. CN218669691U, a piston grouting pump is provided to prevent overflow of the output port, wherein the grout outlet and the grout discharge pipe are fixed by fixing bolts, and the connection stability is good. The outer diameter of the grout outlet is provided with a sealing groove and a sealing ring, which can effectively improve the installation sealing performance of the grout discharge pipe. At the same time, the inner diameter of the grout outlet is designed as a conical structure to ensure smooth grouting and avoid overflow of the grout outlet due to air pressure or connection sealing problem.

[0004] However, the above-mentioned scheme still has certain defects in actual use. In the technical scheme, the moving wheels at the bottom end of the moving frame drive the grouting pump body to displace, but the scheme does not provide a locking structure, so that the moving frame cannot be limited when moving to a specified position, which may cause the grouting pump body to deviate, thereby affecting the normal use of the grouting pump body. Utility model content

[0005] The utility model provides a pneumatic grouting pump of preventing output mouth overflow to solve the problem in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a pneumatic grouting pump of preventing output mouth overflow, comprising a grouting pump structure and a self-locking displacement structure, the self-locking displacement structure comprises a moving base, and a positioning device is movably installed in the moving base through a mounting port;

[0007] The positioning device comprises a drive box, a screw rod is rotatably connected to the inner wall of the drive box through a built-in motor, a threaded ring is threadedly connected to the surface of the screw rod, and a displacement rod is fixedly sleeved on the outer side of the threaded ring;

[0008] The inner wall of the drive box is elastically connected to a rebound plate through a damping spring, the top end of the rebound plate is fixedly installed with a contact slope, and the bottom end of the rebound plate is fixedly installed with a ground contact plate.

[0009] Further, the grouting pump structure comprises a variable speed power box, a belt variable speed box is movably connected to the top end of the variable speed power box through an electric motor, and a pump head tee joint is fixedly connected to the other end of the variable speed power box through a piston seat.

[0010] Further, the grouting pump structure comprises a variable speed power box, a belt variable speed box is movably connected to the top end of the variable speed power box through an electric motor, and a pump head tee joint is fixedly connected to the other end of the variable speed power box through a piston seat.

[0011] Further, the grouting pump structure comprises a variable speed power box, a belt variable speed box is movably connected to the top end of the variable speed power box through an electric motor, and a pump head tee joint is fixedly connected to the other end of the variable speed power box through a piston seat.

[0012] Further, the grouting pump structure comprises a variable speed power box, a belt variable speed box is movably connected to the top end of the variable speed power box through an electric motor, and a pump head tee joint is fixedly connected to the other end of the variable speed power box through a piston seat.

[0013] Compared with the prior art, the utility model provides a prevent output mouth of dynamic grouting pump that overflows, has the following beneficial effect:

[0014] The grouting pump structure is moved to the specified position by the four universal wheels below the moving base, and the built-in motor in the driving box drives the displacement rod outside the screw ring to press down the rebound plate, so that the rebound plate drives the ground plate to gradually contact the ground, the ground plate replaces the universal wheels to lift the moving base, and the moving base is locked at the specified position after moving, so that the grouting pump body is prevented from deviating, and normal use of the grouting pump body is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a grouting pump structure schematic view of the utility model;

[0017] Figure 3 It is a self-locking displacement structure schematic view of the utility model;

[0018] Figure 4 It is a driving box schematic view of the utility model.

[0019] In the diagram: 1. Grouting pump structure; 101. Transmission power box; 102. Belt gearbox; 103. Piston seat; 104. Pump head tee connector; 105. Grout inlet pipe; 106. Upper air chamber; 107. Grout outlet; 2. Self-locking displacement structure; 201. Moving base; 202. Mounting port; 203. Positioning device; 204. Drive box; 205. Screw; 206. Threaded ring; 207. Displacement rod; 208. Limiting rod; 209. Locking toothed ring; 210. Locking rack; 211. Damping spring; 212. Rebound plate; 213. Contact ramp; 214. Contact floor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 This utility model discloses a pneumatic grouting pump that prevents overflow from the output port, including a grouting pump structure 1 and a self-locking displacement structure 2. The self-locking displacement structure 2 includes a movable base 201, and a positioning device 203 is movably installed inside the movable base 201 through an installation port 202.

[0022] The positioning device 203 includes a drive box 204. The inner wall of the drive box 204 is rotatably connected to a screw 205 via a built-in motor. A threaded ring 206 is threadedly connected to the surface of the screw 205. A displacement rod 207 is fixedly sleeved on the outer side of the threaded ring 206.

[0023] The inner wall of the drive box 204 is elastically connected to a rebound plate 212 by a damping spring 211. A contact ramp 213 is fixedly installed at the top of the rebound plate 212, and a contact plate 214 is fixedly installed at the bottom of the rebound plate 212.

[0024] By setting a self-locking displacement structure 2, the four universal wheels under the movable base 201 can drive the grouting pump structure 1 to move to a designated position. In addition, the built-in motor inside the drive box 204 can drive the displacement rod 207 on the outside of the threaded ring 206 through the screw 205 to press down the rebound plate 212, causing the rebound plate 212 to drive the contact plate 214 to gradually contact the ground. The contact plate 214 replaces the universal wheels to support the movable base 201, so that the movable base 201 can be locked in the designated position after the movement is completed, avoiding the grouting pump body from easily shifting, thereby ensuring the normal use of the grouting pump body.

[0025] Specifically, the grouting pump structure 1 includes a variable speed power box 101. The top of the variable speed power box 101 is movably connected to a belt gearbox 102 via an electric motor. The other end of the variable speed power box 101 is fixedly connected to a pump head tee connector 104 via a piston seat 103. A grout inlet pipe 105 is fixedly installed on the side end of the pump head tee connector 104. An upper air chamber 106 is provided at the top of the pump head tee connector 104. A grout outlet 107 is fixedly installed on the back side of the upper air chamber 106.

[0026] In this embodiment, a pressure relief port is provided on the outer side of the upper air chamber 106 in a vertical direction offset from the slurry outlet 107. A pressure relief valve is installed at the pressure relief port, and the air pressure in the upper air chamber 106 can be adjusted by the pressure relief valve.

[0027] Specifically, a limiting rod 208 is fixedly installed on the inner wall of the drive box 204, and the displacement rod 207 is slidably connected to the surface of the limiting rod 208.

[0028] In this embodiment, the limiting rod 208 enables the displacement rod 207 to slide along the surface of the limiting rod 208, thereby improving the movement stability of the limiting rod 208.

[0029] Specifically, a locking toothed ring 209 is fixedly sleeved on the surface of the screw 205, an electric push rod is fixedly installed on the inner wall of the drive box 204, and a locking rack 210 is fixedly installed on the movable end of the electric push rod. The locking rack 210 is located behind the locking toothed ring 209.

[0030] In this embodiment, when it is necessary to lock the screw 205, the electric push rod is activated, so that the moving end of the electric push rod drives the locking rack 210 to gradually mesh with the locking ring 209, causing the locking rack 210 to gradually lock with the locking ring 209, so that the screw 205 can no longer rotate, and the displacement rod 207 can be fixed at the designated position of the screw 205.

[0031] When in use, first push the movable base 201, so that the four casters under the movable base 201 can drive the grouting pump structure 1 to move to the designated position;

[0032] Then the positioning device 203 is activated, which causes the built-in motor inside the drive box 204 to drive the screw 205 to rotate, so that the screw 205 drives the displacement rod 207 to move in the axial direction through the threaded ring 206, causing the displacement rod 207 to move towards the contact ramp 213 at the top of the spring plate 212.

[0033] The displacement rod 207 gradually comes into contact with the contact ramp 213. During this process, the displacement rod 207 will press down the rebound plate 212 through the contact ramp 213, causing the rebound plate 212 to slide down the inner wall of the drive box 204. This causes the rebound plate 212 to drive the contact floor 214 to gradually come into contact with the ground. Then, the contact floor 214 replaces the caster wheel to lift the moving base 201, so that the moving base 201 can be locked in the designated position after the movement is completed.

[0034] When it is necessary to retract the contact plate 214, the built-in motor is started in reverse, so that the displacement rod 207 gradually moves away from the contact ramp 213, so that the downward pressure at the top of the rebound plate 212 disappears, and the compressed damping spring 211 begins to reset, causing the damping spring 211 to drive the contact plate 214 to rise into the drive box 204 through the rebound plate 212.

[0035] Subsequently, the main shaft of the starting motor transmits power to the transmission power box 101 through the belt drive structure in the belt gearbox 102. The gear device and crankshaft in the transmission power box 101 drive the piston in the piston seat 103 to reciprocate, thereby changing the air pressure in the pump head tee joint 104, so that the slurry enters the pump head tee joint 104 from the slurry inlet pipe 105. Under the action of the suction valve and discharge valve in the upper air chamber 106, the slurry is discharged from the slurry outlet 107.

[0036] In summary, this pneumatic grouting pump that prevents overflow from the output port, by setting a self-locking displacement structure 2, uses four universal wheels under the movable base 201 to move the grouting pump structure 1 to a designated position. In addition, the built-in motor inside the drive box 204 can drive the displacement rod 207 on the outside of the threaded ring 206 through the screw 205 to press down the rebound plate 212, causing the rebound plate 212 to drive the contact plate 214 to gradually contact the ground. The contact plate 214 replaces the universal wheels to support the movable base 201, so that the movable base 201 can be locked in the designated position after the movement is completed, avoiding the grouting pump body from easily shifting, thereby ensuring the normal use of the grouting pump body.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic grouting pump for preventing overflow from the outlet, comprising a grouting pump structure (1) and a self-locking displacement structure (2), characterized in that: The self-locking displacement structure (2) includes a movable base (201), and a positioning device (203) is movably installed inside the movable base (201) through the mounting port (202). The positioning device (203) includes a drive box (204), and a screw (205) is rotatably connected to the inner wall of the drive box (204) via a built-in motor. A threaded ring (206) is threadedly connected to the surface of the screw (205), and a displacement rod (207) is fixedly sleeved on the outer side of the threaded ring (206). The inner wall of the drive box (204) is elastically connected to a rebound plate (212) by a damping spring (211). A contact ramp (213) is fixedly installed at the top of the rebound plate (212), and a contact plate (214) is fixedly installed at the bottom of the rebound plate (212).

2. The pneumatic grouting pump for preventing overflow from the output port according to claim 1, characterized in that: The grouting pump structure (1) includes a variable speed power box (101), the top of which is movably connected to a belt gearbox (102) via an electric motor, and the other end of which is fixedly connected to a pump head tee connector (104) via a piston seat (103).

3. A pneumatic grouting pump for preventing overflow from the output port according to claim 2, characterized in that: The pump head tee connector (104) has a slurry inlet pipe (105) fixedly installed on its side end, and an upper air chamber (106) is provided at the top of the pump head tee connector (104). An outlet slurry port (107) is fixedly installed on the back side of the upper air chamber (106).

4. A pneumatic grouting pump for preventing overflow from the output port according to claim 1, characterized in that: A limiting rod (208) is fixedly installed on the inner wall of the drive box (204), and the displacement rod (207) is slidably connected to the surface of the limiting rod (208).

5. A pneumatic grouting pump for preventing overflow from the output port according to claim 1, characterized in that: A locking toothed ring (209) is fixedly sleeved on the surface of the screw (205), and an electric push rod is fixedly installed on the inner wall of the drive box (204). A locking rack (210) is fixedly installed on the movable end of the electric push rod, and the locking rack (210) is located behind the locking toothed ring (209).

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