Crack pouring device with self-cleaning function

Abstract

The utility model relates to a crack pouring device with a self-cleaning function, which comprises an air compressor, a glue injection machine, a multi-way glue injection pipe and a glue injection nozzle, the multi-way glue injection pipe comprises an air blowing passage, a glue inlet passage and a glue outlet passage, the air compressor outputs one path of air to be connected with the air blowing passage, and the glue inlet passage is connected with the glue outlet passage. One path of pouring sealant output by the glue injection machine is mixed with the other path of gas output by the air compressor and then is connected with the glue inlet passage, and the glue outlet passage is connected with the glue injection nozzle; the blowing passage is connected with a medicine inlet passage and is used for introducing a dissolving agent into the multi-way glue injection pipe; and when the multi-way glue injection pipe is blocked or residual pouring sealant exists, a dissolving agent can be introduced into the multi-way glue injection pipe, and the blocked multi-way glue injection pipe and the blocked glue injection nozzle are dredged in cooperation with airflow introduced from the air blowing channel, so that self-cleaning is realized.

Description

Technical Field

[0001] This utility model relates to the field of crack filling device technology, specifically a crack filling device with self-cleaning function. Background Technology

[0002] Currently, crack sealing devices on the market typically refer to specialized equipment used for repairing cracks in concrete structures of roads and bridges. They can inject sealant into cracks to prevent moisture penetration and further crack expansion, thereby extending the service life of roads and bridges.

[0003] While existing crack sealing equipment plays an important role in repairing cracks in roads and bridges, it often leaves behind incompletely injected sealant residue after application, which can easily cause blockages. This is especially true at the injection nozzle and the bends of multi-channel connectors near the nozzle, where more sealant remains. Combined with a small amount of air entering through the injection nozzle, the sealant in these areas solidifies more easily, leading to more severe blockages. This not only reduces the performance of the equipment but may also negatively impact the quality and efficiency of subsequent applications. Cleaning these residues requires additional manual labor, increasing workload and affecting construction efficiency. Utility Model Content

[0004] In order to solve the problems existing in the prior art, this utility model provides a grouting device that is not easy to leave potting compound residue and can perform self-cleaning.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows: a self-cleaning grouting device, comprising an air compressor, a glue injector, a multi-channel glue injector tube, and a glue injector nozzle. The multi-channel glue injector tube includes an air blowing passage, a glue inlet passage, and a glue outlet passage. One gas output from the air compressor is connected to the air blowing passage. One potting compound output from the glue injector is mixed with another gas output from the air compressor and then connected to the glue inlet passage. The glue outlet passage is connected to the glue injector nozzle. A drug inlet passage is connected to the air blowing passage for introducing a solvent into the multi-channel glue injector tube.

[0006] A further design of the above technical solution is as follows: the angle between the setting directions of the glue inlet passage and the glue outlet passage is an obtuse angle, and the inner walls of the passages are smoothly transitioned.

[0007] The multi-port dispensing tube has detachable hoses connected to its air blowing passage, glue inlet passage, and drug inlet passage.

[0008] The hose end is provided with a pipe connector, and the pipe connector is provided with a locking nut. The ends of the air blowing passage, glue inlet passage and medicine inlet passage are provided with external threads that cooperate with the locking nut. The hose can be detachably connected to the multi-port glue injection tube through the cooperation of the locking nut and the external threads.

[0009] The locking nut is rotatably connected to the pipe fitting; one end of the pipe fitting is provided with a protruding ring, and one end of the locking nut is provided with an annular groove. The end of the pipe fitting is embedded in the groove and rotatably connected to the groove. The end of the locking nut is provided with an annular buckle, which restricts the protruding ring within the groove.

[0010] The locking nut has a sealing ring at the contact point between the groove and the convex ring, and at the contact point between the inner wall of the pipe joint and the external thread.

[0011] The ends of the air blowing passage, glue inlet passage and medicine inlet passage are provided with stepped surfaces. The locking nut is screwed into the external thread and abuts against the stepped surface. A sealing ring is provided at the abutment point between the locking nut and the stepped surface.

[0012] The outer wall of the pipe joint is provided with a groove, and a retaining ring is provided in the groove. The hose is sleeved on the outer wall of the pipe joint, and the retaining ring is sleeved on the outside of the hose and embedded in the groove to fix the hose on the outer wall of the pipe joint.

[0013] The dispensing machine is provided in two parts, with two corresponding glue inlet channels, which are symmetrically arranged on both sides of the glue outlet channel.

[0014] The self-cleaning grouting device also includes a four-way air inlet pipe, which includes one air inlet passage and three air outlet passages. Two of the air outlet passages are connected to the glue injection machine and the glue inlet passage respectively through a three-way pipe, and the other air outlet passage is connected to the air blowing passage.

[0015] The beneficial effects of this utility model are as follows:

[0016] The filling device of this invention has a drug inlet passage connected to the air blowing passage of the multi-port glue injection tube connected to the glue injection nozzle. When there is blockage or residual potting glue, a solvent can be introduced into the multi-port glue injection tube, and the airflow introduced into the air blowing passage can clear the blockage of the multi-port glue injection tube and glue injection nozzle, and discharge the residual potting glue, thus achieving self-cleaning.

[0017] In the grouting device of this invention, the angle between the direction of the inlet passage and the outlet passage of the multi-channel grouting tube connected to the grouting nozzle is an obtuse angle, and the inner walls of the passages are smoothly transitioned, so there are no bends, the grouting adhesive is not easy to remain, and therefore it is not easy to clog. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 Top view;

[0020] Figure 3 This is a cross-sectional view of a four-way dispensing hose;

[0021] Figure 4 for Figure 3 Sectional view along line AA;

[0022] Figure 5 This is a magnified view of point B;

[0023] In the diagram: 1-Four-way glue injection hose, 11-Glue outlet passage, 12-Glue inlet passage, 13-Air blowing pipe, 14-Locking nut, 15-Snap fastener, 16-Pipe connector, 17-Clamping ring, 18-Sealing ring, 2-Medication inlet passage, 3-Hose, 4-Glue injection nozzle, 5-T-way pipe, 6-Four-way air inlet pipe, 7-Air compressor, 71-Air outlet, 72-Air inlet, 8a, 8b-Glue injection machine. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Example 1

[0025] The self-cleaning grouting device in this embodiment, such as... Figure 1 and Figure 2 As shown, the system includes an air compressor 7, a glue dispensing machine 8a (8b), a multi-way glue dispensing hose, and a glue dispensing nozzle 4. The air compressor 7 and the glue dispensing machine are connected to the multi-way glue dispensing hose, which is connected to the glue dispensing nozzle 4 for glue dispensing. In this embodiment, there are two glue dispensing machines, namely 8a and 8b, and the corresponding multi-way glue dispensing hose is a four-way glue dispensing hose 1.

[0026] Combination Figure 3 As shown, the four-way dispensing tube 1 in this embodiment includes an air blowing passage 13, a dispensing passage 11, and two dispensing inlet passages 12. An air compressor 7 is connected to an inert gas source through an air inlet 72. After compression, it outputs one gas through an air outlet 71, which connects to the air blowing passage 13. Two dispensing machines 8a and 8b each output one potting compound, which mixes with the other gas output from the air compressor and connects to the two dispensing inlet passages 12. The dispensing passage 11 is threadedly connected to the dispensing nozzle 4. The inert gas output from the air compressor 7 combines with the potting compound output from the dispensing machines, pushing the potting compound through the dispensing inlet passage 12 into the four-way dispensing tube 1. It continues to be propelled by the inert gas airflow from the air blowing passage 13, passing through the dispensing passage 11 into the dispensing nozzle 4 to complete the dispensing process. Figure 4 As shown, in this embodiment, the air blowing passage 13 is also connected to the drug inlet passage 2, which is used to introduce solvent into the four-way glue injection tube 1, clear the blockage of the four-way glue injection tube 1 and the glue injection nozzle 4, and discharge the residual potting glue to achieve self-cleaning. Example 2

[0027] The self-cleaning grouting device in this embodiment has a structure that is basically the same as that in Embodiment 1, except that: Figure 3As shown, in this embodiment, the angle between the setting direction of the glue inlet passage 12 and the glue outlet passage 11 of the four-way glue dispensing tube 1 is an obtuse angle, and the inner walls of the two passages are smoothly transitioned, so that the potting compound does not bend in its flow path and is not easy to leave potting compound residue. The two glue inlet passages 12 are symmetrically arranged on both sides of the glue outlet passage 11.

[0028] In this embodiment, combined with Figure 1 and Figure 2 As shown, the mixing of one channel of potting compound output from the dispensing machine and one channel of gas output from the air compressor is achieved through a four-way inlet pipe 6 and two three-way pipes 5. Specifically, the four-way inlet pipe 6 includes one inlet passage and three outlet passages. The inlet passage is connected to the air outlet 71 of the air compressor 7 through a hose 3. The two outlet passages are respectively connected to the three-way pipe 5. The other two passages of the three-way pipe 5 are respectively connected to the dispensing machine 8a, 8b and the two inlet passages 12 through hoses 3. The remaining outlet passage is connected to the blowing passage 13 through hose 3.

[0029] In this embodiment, the air blowing passage 13, glue inlet passage 12 and medicine inlet passage 2 of the four-way glue injection tube 1 are detachably connected to the hose 3, which facilitates the replacement of the four-way glue injection tube 1 after disassembly.

[0030] Detachable structure such as Figure 5 As shown, the hose 3 is provided with a pipe connector 16 at its end, and a locking nut 14 is provided on the pipe connector 16. The ends of the air blowing passage 13, the glue inlet passage 12 and the medicine inlet passage 2 are all provided with external threads that cooperate with the locking nut 14. The hose 3 can be detachably connected to the above passages of the multi-port glue injection tube 1 through the cooperation of the locking nut 14 and the external threads.

[0031] For ease of installation, this embodiment also provides a convex ring at one end of the pipe connector 16 near the aforementioned passage, and an annular groove at one end of the locking nut 14. The end of the pipe connector 16 is embedded in the groove so that the convex ring is completely located within the groove and is rotatably connected to the groove. The end of the locking nut 14 is connected to an annular buckle 15 by a screw. The outer diameter of the convex ring matches the outer diameter of the groove, and the inner diameter of the buckle is smaller than the outer diameter of the convex ring and matches the outer diameter of the pipe connector 16. When the convex ring is embedded in the groove, the buckle 15 is installed on the end of the locking nut 14. The buckle 15 can restrict the convex ring within the groove, thereby realizing the rotatable connection between the locking nut 14 and the pipe connector 16. As the locking nut 14 is screwed into the external thread, the locking nut 14 drives the pipe connector to move axially along the pipeline. The pipe connector 16 and the hose 3 do not rotate, which facilitates installation.

[0032] In this embodiment, the end of the passage connecting the locking nut 14 is provided with a stepped surface. The locking nut 14 is screwed into the external thread and abuts against the stepped surface. Sealing rings 18 are provided at the contact point between the locking nut 14 and the stepped surface, at the contact point between the groove of the locking nut 14 and the convex ring, and at the contact point between the inner wall of the pipe joint 16 and the external thread.

[0033] The outer wall of the pipe connector 16 is provided with a groove, and a retaining ring 17 is provided in the groove. The hose 3 is put on the outer wall of the pipe connector 15, and then the retaining ring 17 is put on the outside of the hose and embedded in the groove, thereby fixing the hose 3 to the outer wall of the pipe connector 16.

[0034] The technical solutions of this utility model are not limited to the above embodiments. All technical solutions obtained by equivalent substitution fall within the scope of protection claimed by this utility model.

Claims

1. A crack filling device with self-cleaning function, characterized in that: The device includes an air compressor, a dispensing machine, a multi-port dispensing hose, and a dispensing nozzle. The multi-port dispensing hose includes an air blowing passage, a glue inlet passage, and a glue outlet passage. One air output from the air compressor is connected to the air blowing passage. One output from the dispensing machine is mixed with another output from the air compressor and then connected to the glue inlet passage. The glue outlet passage is connected to the dispensing nozzle. A drug inlet passage is connected to the air blowing passage for introducing a solvent into the multi-port dispensing hose.

2. The grouting device with self-cleaning function according to claim 1, characterized in that: The angle between the orientations of the glue inlet and glue outlet channels is an obtuse angle, and the inner walls of the channels transition smoothly.

3. The grouting device with self-cleaning function according to claim 2, characterized in that: The multi-port dispensing tube has detachable hoses connected to its air blowing passage, glue inlet passage, and drug inlet passage.

4. The grouting device with self-cleaning function according to claim 3, characterized in that: The hose end is provided with a pipe connector, and the pipe connector is provided with a locking nut. The ends of the air blowing passage, glue inlet passage and medicine inlet passage are provided with external threads that cooperate with the locking nut. The hose can be detachably connected to the multi-port glue injection tube through the cooperation of the locking nut and the external threads.

5. The grouting device with self-cleaning function according to claim 4, characterized in that: The locking nut is rotatably connected to the pipe fitting; one end of the pipe fitting is provided with a protruding ring, and one end of the locking nut is provided with an annular groove. The end of the pipe fitting is embedded in the groove and rotatably connected to the groove. The end of the locking nut is provided with an annular buckle, which restricts the protruding ring within the groove.

6. The grouting device with self-cleaning function according to claim 5, characterized in that: The locking nut has a sealing ring at the contact point between the groove and the convex ring, and at the contact point between the inner wall of the pipe joint and the external thread.

7. The grouting device with self-cleaning function according to claim 6, characterized in that: The ends of the air blowing passage, glue inlet passage and medicine inlet passage are provided with stepped surfaces. The locking nut is screwed into the external thread and abuts against the stepped surface. A sealing ring is provided at the abutment point between the locking nut and the stepped surface.

8. The grouting device with self-cleaning function according to claim 7, characterized in that: The outer wall of the pipe joint is provided with a groove, and a retaining ring is provided in the groove. The hose is sleeved on the outer wall of the pipe joint, and the retaining ring is sleeved on the outside of the hose and embedded in the groove to fix the hose on the outer wall of the pipe joint.

9. The grouting device with self-cleaning function according to any one of claims 1 to 8, characterized in that: The dispensing machine is provided in two parts, with two corresponding glue inlet channels, which are symmetrically arranged on both sides of the glue outlet channel.

10. The grouting device with self-cleaning function according to claim 9, characterized in that: It also includes a four-way air inlet pipe, which includes one air inlet passage and three air outlet passages. Two of the air outlet passages are connected to the glue dispensing machine and the glue inlet passage respectively through a three-way pipe, and the other air outlet passage is connected to the air blowing passage.

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