Material spraying device for tunnel concrete surface leakage

By installing a protective cover and anti-slip pad on the outside of the extension tube of the spraying device, the problem of spraying material falling off is solved, achieving higher safety and protection.

CN224134657UActive Publication Date: 2026-04-17CCCC INFRASTRUCTURE MAINTENANCE GRP CO LTD +1
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CCCC INFRASTRUCTURE MAINTENANCE GRP CO LTD
Filing Date
2025-08-07
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing material spraying equipment often results in sprayed materials flying downwards during application, causing contamination of personnel's faces, resulting in poor safety and protection.

Method used

A protective assembly, including a first protective cover and a second protective cover, is installed outside the extension tube of the spraying device. They are connected by fixing bolts, and an anti-slip pad and an anti-fall outer ring are installed inside the connecting seat to improve the stability and protection of the device.

Benefits of technology

It effectively prevents the sprayed material from falling, improves operational safety and protective performance, and avoids material scattering that could cause injury to personnel.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224134657U_ABST
    Figure CN224134657U_ABST
Patent Text Reader

Abstract

The utility model discloses a material spraying device for tunnel concrete surface leakage, and relates to the technical field of material spraying, the material spraying device for tunnel concrete surface leakage comprises a charging barrel, the lower end of the charging barrel is provided with a base, the upper end of the base is provided with a spraying pump, and the upper end of the spraying pump is provided with a spraying nozzle. One end of the spraying pump is connected with a discharging opening in the lower surface of the charging barrel, a connecting pipe is arranged at the other end of the spraying pump, a spraying gun is arranged at one end of the connecting pipe, an extension pipe is arranged at one end of the spraying gun, a protection assembly is arranged outside the extension pipe, and the protection assembly comprises a first protection cover and a second protection cover; according to the scheme, the problems that when an existing material is sprayed, the spraying material easily flies down, so that the face of a person is contaminated with the material, and the safety and the protection performance are poor are solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of material spraying technology, specifically to a material spraying device for treating leakage on the surface of tunnel concrete. Background Technology

[0002] Material spraying for leakage on the surface of tunnel concrete mainly refers to applying waterproof material to the surface of the concrete structure through a spraying process to form a waterproof layer to prevent water penetration.

[0003] For example, Chinese patent CN214234579U (A Novel Spray Gun for Building Decoration Materials) includes a spray bottle obliquely connected to the top of the spray gun body. The spray bottle contains several positioning protrusions, and a manual filter is slidably connected to the spray bottle through these protrusions. One side of the manual filter is connected to a push-pull rod. This design allows the operator to manually filter the paint multiple times before spraying, trapping impurities at the bottom of the spray bottle, resulting in a finer, smoother, and more uniform coating. Furthermore, this invention employs an L-shaped connecting plate at the bottom of the handle. A small fan and drive motor are mounted on the vertical plate of the L-shaped connecting plate, which also has a switch button. This design allows the small fan to dry the coating after spraying, enabling better adhesion of the paint to the object's surface and improving the overall quality of the spraying.

[0004] However, when using existing material spraying methods, the sprayed material tends to fall downwards, causing personnel to get material on their faces, resulting in poor safety and protection. Therefore, it does not meet the current needs. To address this, we propose a material spraying device for leaking concrete surfaces in tunnels. Utility Model Content

[0005] The purpose of this invention is to provide a material spraying device for leaking concrete surfaces in tunnels, in order to solve the problem mentioned in the background art where the sprayed material tends to fall downwards during spraying, causing personnel's faces to be contaminated with the material, resulting in poor safety and protection.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a material spraying device for leaking concrete surfaces in tunnels, comprising: a material tank, a base at the lower end of the material tank, a spraying pump at the upper end of the base, one end of the spraying pump being connected to the outlet on the lower surface of the material tank, a connecting pipe at the other end of the spraying pump, a spray gun at one end of the connecting pipe, an extension pipe at one end of the spray gun, and a protective component on the outside of the extension pipe.

[0007] Preferably, the protective assembly includes a first protective cover and a second protective cover, and the first and second protective covers wrap around the extension tube.

[0008] Preferably, a connecting seat is provided on one lower surface of both the first protective cover and the second protective cover. A fixing plate is provided at both ends of the connecting seat. Bolt holes are provided at both ends of the fixing plate. A fixing bolt is provided at one end of the bolt hole, and a nut is connected to the outside of the bolt hole through the bolt hole.

[0009] Preferably, the inner wall of the connector is provided with an installation groove, the inside of the connector is wrapped with an anti-slip pad, the outer wall of the anti-slip pad is provided with an anti-drop outer ring, the anti-slip pad and the anti-drop outer ring are integrally formed, and the anti-drop outer ring is stuck inside the installation groove.

[0010] Preferably, one end of the extension tube is provided with a nozzle, and the top of the material container is provided with a top cover, and the top cover is plugged into the material container.

[0011] Preferably, the upper surface of the base is provided with a support frame, and the two ends of the support frame are welded and fixed to the base and the loading barrel respectively, forming an installation cavity between the base and the loading barrel.

[0012] Preferably, the first and second protective covers are arc-shaped, and both the first and second protective covers are made of transparent acrylic sheets.

[0013] Preferably, both the anti-slip pad and the anti-fall outer ring are made of rubber.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) This utility model sets a protective component on the outside of the extension pipe. The protective component includes a first protective cover and a second protective cover. When installing the first protective cover and the second protective cover, one end of the fixing bolt passes through the bolt hole and is connected to the external nut to realize the compression and fixing of the first protective cover and the second protective cover. The detachable first protective cover and the second protective cover are easy to replace quickly and improve flexibility. When spraying the top of the tunnel, the first protective cover and the second protective cover are used to protect against paint falling and causing injury to personnel. When spraying the ground and walls, the material is prevented from scattering to personnel, improving safety and protection performance. It solves the problem that when spraying existing materials, the sprayed material is easy to fall downwards, resulting in the personnel's face being contaminated with the material, resulting in poor safety and protection.

[0016] (2) By setting an installation groove on the inner wall of the connector, the anti-slip pad is placed on the outside of the extension tube. When installing the first protective cover and the second protective cover, the anti-fall outer ring is stuck inside the installation groove to prevent the anti-slip pad from slipping off, thereby improving the stability of the connection between the anti-slip pad and the first and second protective covers. After the first and second protective covers are installed, they also compress the anti-slip pad, increasing the friction with the extension tube, thus making it less likely to slip and fall off, thereby improving the stability of the installation of the first and second protective covers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the protective component structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the second protective cover structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the anti-slip mat structure of this utility model;

[0021] In the diagram: 1. Filling hopper; 2. Top cover; 3. Base; 4. Spray pump; 5. Connecting pipe; 6. Spray gun; 7. Extension pipe; 8. Spray nozzle; 9. Protective components; 10. First protective cover; 11. Second protective cover; 12. Connecting seat; 13. Anti-slip pad; 14. Fixing plate; 15. Fixing bolt; 16. Mounting groove; 17. Bolt hole; 18. Anti-fall outer ring; 19. Support frame; 20. Mounting cavity. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4This utility model provides an embodiment of a material spraying device for treating leakage on the surface of tunnel concrete, comprising: a material tank 1, a base 3 at the lower end of the material tank 1, a spraying pump 4 at the upper end of the base 3, one end of the spraying pump 4 being connected to the outlet on the lower surface of the material tank 1, a connecting pipe 5 at the other end of the spraying pump 4, a spray gun 6 at one end of the connecting pipe 5, an extension pipe 7 at one end of the spray gun 6, and a protective assembly 9 on the outside of the extension pipe 7, the protective assembly 9 including a first protective cover 10 and a second protective cover 11, and the first protective cover 10 and the second protective cover 11 protecting the extension pipe 7. The first protective cover 10 and the second protective cover 11 are both provided with connecting seats 12 on one side of their lower surfaces. Both ends of the connecting seats 12 are provided with fixing plates 14. Both ends of the fixing plates 14 are provided with bolt holes 17. One end of the bolt hole 17 is provided with a fixing bolt 15, and one end of the fixing bolt 15 passes through the bolt hole 17 and is connected with an external nut. The inner wall of the connecting seat 12 is provided with an installation groove 16. The inside of the connecting seat 12 is wrapped with an anti-slip pad 13. The outer wall of the anti-slip pad 13 is provided with an anti-fall outer ring 18. The anti-slip pad 13 and the anti-fall outer ring 18 are integrally formed, and the anti-fall outer ring 18 is stuck inside the installation groove 16.

[0024] The anti-slip pad 13 is placed over the extension tube 7, and then the nozzle 8 is fixed. The first protective cover 10 and the second protective cover 11 are then installed on both sides of the extension tube 7, and the anti-drop outer ring 18 is inserted into the mounting groove 16, so that the anti-slip pad 13 is connected to the first protective cover 10 and the second protective cover 11. The anti-slip pad 13 can also be moved up and down to adjust the installation position of the first protective cover 10 and the second protective cover 11, thereby improving flexibility.

[0025] When installing the first protective cover 10 and the second protective cover 11, one end of the fixing bolt 15 passes through the bolt hole 17 and is connected to the external nut to achieve compression and fixation of the first protective cover 10 and the second protective cover 11. During compression, the anti-slip pad 13 is also compressed, which increases the friction with the extension tube 7, making it less likely to slip and fall, and improving the stability of the installation of the first protective cover 10 and the second protective cover 11.

[0026] One end of the extension tube 7 is equipped with a nozzle 8, the top of the material tank 1 is equipped with a top cover 2, and the top cover 2 is plugged into the material tank 1. The upper surface of the base 3 is equipped with a support frame 19, and the two ends of the support frame 19 are welded and fixed to the base 3 and the material tank 1 respectively. An installation cavity 20 is formed between the base 3 and the material tank 1. The first protective cover 10 and the second protective cover 11 are arc-shaped, and both the first protective cover 10 and the second protective cover 11 are made of transparent acrylic sheet so that the spraying does not hinder the personnel from observing the spraying situation. The anti-slip pad 13 and the anti-fall outer ring 18 are both made of rubber material.

[0027] When spraying materials to prevent leakage on the surface of tunnel concrete, the material inside the loading tank 1 flows to the spray pump 4 through the outlet at the bottom. The spray pump 4 pressurizes the material and delivers it to the spray gun 6 along the connecting pipe 5. The spray gun 6 controls the spraying, and the material is sprayed out from the nozzle 8 along the extension pipe 7, thus realizing the spraying operation. When spraying the top of the tunnel, the first protective cover 10 and the second protective cover 11 are used for protection to prevent the paint from falling and causing injury to personnel. When spraying the ground and walls, the material is prevented from scattering to personnel, thus improving safety and protective performance.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A material spraying device for tunnel concrete surface leakage, comprising a charging barrel (1), characterized in that: The lower end of the loading barrel (1) is provided with a base (3), the upper end of the base (3) is provided with a spray pump (4), and one end of the spray pump (4) is connected to the discharge port on the lower surface of the loading barrel (1). The other end of the spray pump (4) is provided with a connecting pipe (5), one end of the connecting pipe (5) is provided with a spray gun (6), one end of the spray gun (6) is provided with an extension pipe (7), and the outside of the extension pipe (7) is provided with a protective component (9).

2. A material spraying device for tunnel concrete surface leakage according to claim 1, characterized in that: The protective component (9) includes a first protective cover (10) and a second protective cover (11), and the first protective cover (10) and the second protective cover (11) wrap around the extension tube (7).

3. A material spraying device for tunnel concrete surface leakage according to claim 2, characterized in that: The first protective cover (10) and the second protective cover (11) are provided with a connecting seat (12) on one side of the lower surface. Both ends of the connecting seat (12) are provided with a fixing plate (14). Both ends of the fixing plate (14) are provided with bolt holes (17). One end of the bolt hole (17) is provided with a fixing bolt (15), and one end of the fixing bolt (15) passes through the bolt hole (17) and is connected to an external nut.

4. A material spraying device for tunnel concrete surface leakage according to claim 3, characterized in that: The inner wall of the connector (12) is provided with an installation groove (16), and the inside of the connector (12) is wrapped with an anti-slip pad (13). The outer wall of the anti-slip pad (13) is provided with an anti-drop outer ring (18). The anti-slip pad (13) and the anti-drop outer ring (18) are integrally formed, and the anti-drop outer ring (18) is stuck inside the installation groove (16).

5. A material spraying device for tunnel concrete surface leakage according to claim 1, characterized in that: One end of the extension tube (7) is provided with a nozzle (8), and the top of the loading barrel (1) is provided with a top cover (2), and the top cover (2) is plugged into the loading barrel (1).

6. A material spraying device for tunnel concrete surface leakage according to claim 1, characterized in that: The base (3) is provided with support frames (19) on all four sides of its upper surface, and the two ends of the support frames (19) are welded and fixed to the base (3) and the loading barrel (1) respectively, forming an installation cavity (20) between the base (3) and the loading barrel (1).

7. A material spraying device for tunnel concrete surface leakage according to claim 2, characterized in that: The first protective cover (10) and the second protective cover (11) are arc-shaped, and both the first protective cover (10) and the second protective cover (11) are made of transparent acrylic sheet.

8. A material spraying device for tunnel concrete surface leakage according to claim 4, characterized in that: Both the anti-slip pad (13) and the anti-fall outer ring (18) are made of rubber.

Citation Information

Patent Citations

  • Novel spraying gun for building decoration materials

    CN214234579U