Concrete crack high pressure grouting gun

Abstract

The utility model discloses a kind of concrete crack high-pressure grouting gun, belong to building structure maintenance technical field, including handle, the handle one side is fixedly installed with mounting bracket, storage tube is set on mounting bracket by communicating pipe, the storage tube is equipped with the discharge assembly that can be out to crack with repair slurry and be repaired, feed inlet is connected and is installed on mounting bracket, the mounting bracket is also equipped with the pusher assembly that can be to the repair slurry in storage tube inside and be pressurized, the storage tube and communicating pipe are fixed between by connecting component;Pusher assembly adopts plunger pump, push plate is pushed by the reciprocating motion of plunger, can exert stable and high-pressure thrust to the repair slurry in storage tube, ensure that slurry can smoothly enter crack, improve the uniformity and reliability of grouting.

Description

Technical Field

[0001] This utility model relates to the field of building structure maintenance technology, and in particular to a high-pressure grouting gun for concrete cracks. Background Technology

[0002] In concrete curved surface engineering projects such as railway bridges, ballastless tracks, tunnels, and highways (column caps, crash barriers, beam ends, spiral sections of drainage ditches, etc.), the current main method for repairing concrete cracks is to use handheld low-pressure grouting devices or split-type screw pump units. The pressure grouting device relies on manual squeezing or compressed air to inject epoxy resin / polyurethane grout into the cracks. The equipment is lightweight but the grouting pressure is low and the penetration depth is limited. The grout often solidifies at the crack opening and cannot fill the deep voids.

[0003] Existing low-pressure equipment cannot overcome the capillary resistance inside the crack, resulting in the problem that the surface of the crack is sealed but the inside is hollow, leading to a high rate of secondary cracking in the later stage. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing low-pressure equipment cannot overcome the capillary resistance inside cracks, resulting in cracks being sealed on the surface but hollow inside. Therefore, a high-pressure grouting gun for concrete cracks is proposed.

[0005] To achieve the above objectives, this utility model employs the following technology: a high-pressure grouting gun for concrete cracks, including a handle, a mounting frame fixedly installed on one side of the handle, a storage tube mounted on the mounting frame via a connecting pipe, a discharge component capable of spraying out repair grout to repair cracks mounted on the storage tube, an inlet connected to and mounted on the mounting frame, and a pushing component capable of pressurizing the repair grout inside the storage tube mounted on the mounting frame, the storage tube and the connecting pipe being fixed together by a connecting component.

[0006] As a further description of the above technical solution: the discharge assembly includes a discharge pipe connected to and installed on the storage pipe, a limiting groove symmetrically installed on the discharge pipe, an extension pipe slidably installed inside the discharge pipe, and a limiting block set on the extension pipe by a spring.

[0007] As a further description of the above technical solution: the size of the limiting groove is adapted to the limiting block, and the arc-shaped surface of the limiting block is located inside the limiting groove, and one end of the extension tube extends to the outside of the feeding tube.

[0008] As a further description of the above technical solution: the pushing component includes a plunger pump fixedly installed in the mounting frame, a pressure plate is set on the plunger of the plunger pump through a push rod, and a feed pipe is connected and installed between the pressure plate and the feed port.

[0009] As a further description of the above technical solution: the size of the pressure plate is adapted to the inner diameter of the connecting pipe, and the storage pipe and the connecting pipe are respectively provided with guide grooves. The pressure plate and the guide grooves are slidably connected, and the feed pipe is a flexible hose.

[0010] As a further description of the above technical solution: the connecting component includes a locking block fixedly installed on the storage pipe, a rotating plate rotatably installed on the storage pipe, a locking groove opened at the bottom end of the connecting pipe, and a rubber ring and a fixing block respectively set on the connecting pipe.

[0011] As a further description of the above technical solution: the rubber ring is located in the slot, the top of the card block is provided with a groove, the insertion rod is set on the fixed block by the second spring, and the rotating plate is provided with a through groove of the same size as the insertion rod.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: The pushing component uses a plunger pump, which pushes the pressure plate through the reciprocating motion of the plunger, applying a stable and high-pressure thrust to the repair grout in the storage pipe, ensuring that the grout can smoothly enter the crack and improve the uniformity and reliability of grouting. The extension tube in the discharge component can slide to adjust its length, and the limiting block is fixed by a spring-loaded reset mechanism. This design allows the grouting gun to adapt to cracks of different depths. The design of the connecting component allows for quick disassembly and installation between the storage pipe and the connecting pipe. Through the cooperation of structures such as the locking block, rotating plate, and insertion rod, the disassembly and installation of the storage pipe is simple, facilitating equipment maintenance and cleaning. Attached Figure Description

[0013] Figure 1 An overall schematic diagram according to an embodiment of the present utility model is shown; Figure 2 The present invention provides an embodiment of the present invention. Figure 1 Another perspective view; Figure 3 A cross-sectional view of a mounting bracket provided according to an embodiment of the present invention is shown; Figure 4 This diagram shows the effect of separating the storage pipe and the connecting pipe according to an embodiment of the present invention; Figure 5 A schematic diagram of a push component provided according to an embodiment of the present utility model is shown; Figure 6 A schematic diagram of a connection component provided according to an embodiment of the present utility model is shown; Figure 7 This diagram shows the effect after the rotating plate and the fixing block are locked according to an embodiment of the present invention; Figure 8 A schematic diagram of the discharge assembly provided according to an embodiment of the present invention is shown.

[0014] Legend: 10. Handle; 11. Mounting bracket; 12. Storage pipe; 13. Connecting pipe; 14. Discharge assembly; 141. Feed pipe; 142. Limiting groove; 143. Extension pipe; 144. Limiting block; 145. Spring 1; 15. Feed inlet; 16. Pushing assembly; 161. Piston pump; 162. Pressure plate; 163. Push rod; 164. Feed pipe; 17. Connecting assembly; 171. Locking block; 172. Rotating plate; 173. Locking groove; 174. Rubber ring; 175. Fixing block; 176. Insert rod. Detailed Implementation

[0015] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Reference Figure 1 - Figure 8 This embodiment provides a high-pressure grouting gun for concrete cracks, including a handle 10. A mounting frame 11 is fixedly installed on one side of the handle 10. A storage tube 12 is mounted on the mounting frame 11 through a connecting pipe 13. The storage tube 12 stores repair grout. A discharge component 14 is installed on the storage tube 12 to spray the repair grout to repair the crack. An inlet 15 is connected and installed on the mounting frame 11. Repair grout can be added to the storage tube 12 through the inlet 15. A pushing component 16 is also installed on the mounting frame 11 to apply pressure to the repair grout inside the storage tube 12. The storage tube 12 and the connecting pipe 13 are fixed together by a connecting component 17.

[0017] Reference Figure 8 Specifically, in order to enable the repair grout to be sprayed out, a discharge assembly 14 is provided. The discharge assembly 14 includes a discharge pipe 141 connected to the storage pipe 12, a limiting groove 142 symmetrically installed on the discharge pipe 141, and an extension pipe 143 slidably installed inside the discharge pipe 141. By pulling the extension pipe 143 outward, the overall length of the discharge pipe 141 can be increased. A limiting block 144 is set on the extension pipe 143 by a spring 145. The reaction force of the spring 145 enables the limiting block 144 to be reset, thereby fixing the extended extension pipe 143.

[0018] In more detail, the dimensions of the limiting groove 142 are adapted to the limiting block 144, so that the limiting block 144 can be inserted into the limiting groove 142, and the arc-shaped surface of the limiting block 144 is located in the limiting groove 142. One end of the extension tube 143 extends to the outside of the feeding tube 141. By pulling the extension tube 143 outward, the extension tube 143 can slide downward in the feeding tube 141. While the extension tube 143 moves, the arc-shaped surface of the limiting block 144 will also be squeezed and retracted by the limiting groove 142. After the extension tube 143 moves to a suitable length, the limiting block 144 can be reset by the reaction force of the spring 145, thereby fixing the extended extension tube 143 and changing the length of the feeding tube 141.

[0019] Reference Figure 3 - Figure 5 Specifically, in order to repair cracks by pushing the repair grout under high pressure, a pushing assembly 16 is set up. The pushing assembly 16 includes a plunger pump 161 fixedly installed in the mounting frame 11. The plunger pump 161 is existing technology. The pressure plate 162 is set on the plunger of the plunger pump 161 by a push rod 163. The plunger of the plunger pump 161 can push the push rod 163 to drive the pressure plate 162 to rise and fall. The feed pipe 164 is connected and installed between the pressure plate 162 and the feed port 15. When the repair grout enters through the feed port 15, it will be transported to the storage pipe 12 through the feed pipe 164, thereby replenishing the repair grout inside the storage pipe 12.

[0020] In more detail, the size of the pressure plate 162 is adapted to the inner diameter of the connecting pipe 13. Guide grooves are respectively connected to the storage pipe 12 and the connecting pipe 13. The pressure plate 162 and the guide groove are slidably connected. The guide groove allows the lifting pressure plate 162 to remain stable. When the plunger of the plunger pump 161 pushes the push rod 163 to lower the pressure plate 162, the pressure of the lowered pressure plate 162 pushes the repair grout out of the storage pipe 12 and repairs the crack through the discharge pipe 141. The feed pipe 164 is a flexible hose with a margin, so the lifting of the pressure plate 162 will not affect the feed pipe 164.

[0021] Reference Figure 6 - Figure 7 Specifically, in order to disassemble the storage tube 12, a connecting component 17 is provided. The connecting component 17 includes a locking block 171 fixedly installed on the storage tube 12, a rotating plate 172 rotatably installed on the storage tube 12, a slot 173 opened at the bottom end of the connecting tube 13, the locking block 171 located in the slot 173, and a rubber ring 174 and a fixing block 175 respectively provided on the connecting tube 13.

[0022] In more detail, the rubber ring 174 is located within the slot 173, and a groove is formed at the top of the locking block 171. Initially, the slot 173 engages with the locking block 171, and the top of the locking block 171 also contacts the rubber ring 174. The rubber ring 174, deformed under pressure, fills the groove at the top of the locking block 171, thereby increasing the contact area between the locking block 171 and the rubber ring 174, thus increasing the sealing effect and preventing leakage of the repair slurry. The insertion rod 176 is mounted on the fixing block 175 via a spring. The reaction force of the spring allows the insertion rod 176 to return to its original position. A through slot of the same size as the insertion rod 176 is formed on the rotating plate 172. Initially, one end of the insertion rod 176 is located within the through slot. Figure 8 As shown, this allows the storage tube 12 and the connecting tube 13 to be in close contact. When the storage tube 12 needs to be disassembled for cleaning, the insert rod 176 is pulled outward to disengage it from the through groove. Then, the through groove and the insert rod 176 can be separated by rotating the rotating plate 172. Finally, the storage tube 12 can be pulled downward to complete the separation from the connecting tube 13.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-pressure grouting gun for concrete cracks, characterized in that, The device includes a handle (10), on one side of which a mounting frame (11) is fixedly installed. A storage pipe (12) is mounted on the mounting frame (11) via a connecting pipe (13). The storage pipe (12) is equipped with a discharge assembly (14) that can spray out repair grout to repair cracks. An inlet (15) is connected to and mounted on the mounting frame (11). The mounting frame (11) is also equipped with a push assembly (16) that can pressurize the repair grout inside the storage pipe (12). The storage pipe (12) and the connecting pipe (13) are fixed together by a connecting assembly (17).

2. The high-pressure grouting gun for concrete cracks according to claim 1, characterized in that, The discharge assembly (14) includes a discharge pipe (141) connected to the storage pipe (12), a limiting groove (142) symmetrically installed on the discharge pipe (141), an extension pipe (143) slidably installed inside the discharge pipe (141), and a limiting block (144) set on the extension pipe (143) by a spring (145).

3. A high-pressure grouting gun for concrete cracks according to claim 2, characterized in that, The size of the limiting groove (142) is adapted to the limiting block (144), and the arc surface of the limiting block (144) is located inside the limiting groove (142), and one end of the extension tube (143) extends to the outside of the feeding tube (141).

4. The high-pressure grouting gun for concrete cracks according to claim 1, characterized in that, The push assembly (16) includes a plunger pump (161) fixedly installed in the mounting bracket (11), a pressure plate (162) is set on the plunger of the plunger pump (161) by a push rod (163), and a feed pipe (164) is connected between the pressure plate (162) and the feed port (15).

5. A high-pressure grouting gun for concrete cracks according to claim 4, characterized in that, The size of the pressure plate (162) is adapted to the inner diameter of the connecting pipe (13). The storage pipe (12) and the connecting pipe (13) are respectively connected with guide grooves. The pressure plate (162) and the guide groove are slidably connected. The feed pipe (164) is a flexible hose.

6. A high-pressure grouting gun for concrete cracks according to claim 1, characterized in that, The connecting assembly (17) includes a locking block (171) fixedly installed on the storage pipe (12), a rotating plate (172) rotatably installed on the storage pipe (12), a locking groove (173) opened at the bottom end of the connecting pipe (13), and rubber rings (174) and fixing blocks (175) respectively set on the connecting pipe (13).

7. A high-pressure grouting gun for concrete cracks according to claim 6, characterized in that, The rubber ring (174) is located in the slot (173), the top of the card block (171) is provided with a groove, the insertion rod (176) is set on the fixed block (175) by the second spring, and the rotating plate (172) is provided with a through groove of the same size as the insertion rod (176).

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