Sealing clamps for expansion joints in channel lining

By designing a sealing clamp for channel lining expansion joints that adapts to different channel widths, and utilizing an electric expansion machine and roller assembly to achieve clamping and uniform spraying, the problem of insufficient adaptability of existing clamps is solved, thereby improving construction quality and the service life of sealing materials.

CN224431367UActive Publication Date: 2026-06-30NINGXIA JUNWEI MEAT FOOD TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA JUNWEI MEAT FOOD TECHNOLOGY CO LTD
Filing Date
2025-08-06
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing sealing fixtures for expansion joints in channel linings lack fixture devices that can adapt to different channel sizes and widths, resulting in insufficient equipment versatility and flexibility, which affects construction quality and efficiency.

Method used

A clamping device was designed, comprising a T-shaped support plate, a support column, a power assembly, a C-shaped clamping column, and a rolling assembly. The device uses an electric telescopic mechanism to drive the telescopic rod and connecting rod to clamp and fix channels of different widths, and uses rollers and a spray gun assembly to evenly spray sealing material.

Benefits of technology

It improves equipment flexibility and construction quality, ensures uniform spraying of sealing materials, and extends the service life of sealing materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of construction technology and discloses a sealing clamp for expansion joints in channel linings. It includes a T-shaped support plate, with a support column fixedly connected inside. A power assembly is also located inside the T-shaped support plate. Multiple connecting blocks are fixedly connected to the left and right sides of the bottom of the T-shaped support plate. A fixed cylinder is fixedly connected inside every two connecting blocks, and two sliding blocks are slidably connected to the outside of the fixed cylinder. A C-shaped clamp column is fixedly connected to the bottom of each sliding block. A sliding assembly is located on the front side of the T-shaped support plate. In this utility model, an electric telescopic mechanism drives the telescopic rod upward, causing the connecting groove to move upward. This causes the connecting rod to rotate, causing the C-shaped clamp column and the sliding blocks to slide together along the fixed cylinder, moving together with the wear-resistant clamp plate. This allows the equipment to tighten and fix channels of different widths, improving the flexibility of the equipment.
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Description

Technical Field

[0001] This utility model relates to the field of construction technology, and in particular to a sealing fixture for expansion joints in channel linings. Background Technology

[0002] With the rapid development of society, mechanical equipment is also changing rapidly. The sealing treatment fixture for expansion joints in channel lining mainly originates from the needs of water conservancy projects for channel seepage prevention and expansion joint treatment. The purpose is to solve the existing problems in expansion joint sealing treatment and improve construction quality and efficiency.

[0003] In the existing technology, the sealing treatment clamps for expansion joints in channel linings lack clamping devices that can cope with different channel sizes and widths. As a result, they cannot clamp and fix channels of different widths and spray sealing materials, which reduces the versatility and flexibility of the equipment and thus reduces the construction quality of the machine. Therefore, a sealing treatment clamp for expansion joints in channel linings is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a sealing fixture for expansion joints in channel linings, aiming to improve the problem of insufficient adaptability of fixtures in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sealing fixture for expansion joints in channel lining includes a T-shaped support plate, a support column fixedly connected inside the T-shaped support plate, a power assembly inside the T-shaped support plate, multiple connecting blocks fixedly connected to the left and right sides of the bottom of the T-shaped support plate, a fixed cylinder fixedly connected inside every two connecting blocks, two sliding blocks slidably connected to the outside of the fixed cylinder, a C-shaped clamping column fixedly connected to the bottom of each sliding block, a wear-resistant clamping plate fixedly connected to the inner bottom of the C-shaped clamping column, a connecting rod rotatably connected inside the wear-resistant clamping plate, and a sliding assembly on the front side of the T-shaped support plate.

[0007] As a further description of the above technical solution:

[0008] The power assembly includes an electric telescopic mechanism, the drive end of which is fixedly connected to a telescopic rod, the bottom of which is fixedly connected to a connecting groove, and the interior of which is fixedly connected to two fixed rotating shafts, the outer side of which is rotatably connected to the interior of the connecting rod on the side away from the wear-resistant clamp.

[0009] As a further description of the above technical solution:

[0010] The support column has a long bolt threaded inside its bottom side, and a fixing plate threaded outside the long bolt. The fixing plate is fixed to the outside of the support column by the long bolt, and a rolling assembly is provided at the bottom of the fixing plate.

[0011] As a further description of the above technical solution:

[0012] The rolling assembly includes a roller, a rubber layer is fixedly connected to the outer side of the roller, two force-bearing columns are rotatably connected to both sides of the roller, a spring is fixedly connected to the top of each force-bearing column, two hollow cylindrical tubes are fixedly connected to the bottom of the fixing plate, and hollow cylindrical tubes are slidably connected to the outside of the springs.

[0013] As a further description of the above technical solution:

[0014] The sliding assembly includes a slide rail, a T-shaped support plate is fixedly connected to the rear side of the slide rail, a sliding plate is slidably connected to the outer side of the slide rail, a cylinder is fixedly connected to the top of the sliding plate, and a spray gun assembly is provided at the bottom of the cylinder.

[0015] As a further description of the above technical solution:

[0016] The spray gun assembly includes a pressure column, a cylinder is fixedly connected to the top of the pressure column, a piston plate is fixedly connected to the bottom of the pressure column, a spray gun barrel is slidably connected to the outside of the piston plate, a spray gun tube is fixedly connected to the bottom of the spray gun barrel, and a feeding pipe is fixedly connected to the right side of the spray gun barrel.

[0017] As a further description of the above technical solution:

[0018] The T-shaped support plate is externally fixedly connected to two push rods, and the top of the force-bearing column is slidably connected to the inside of the hollow cylindrical tube.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, the electric telescopic machine drives the telescopic rod to move upward, causing the connecting groove to move upward as well. The fixed rotating shaft fixed in the connecting groove drives the connecting rod to rotate, causing the C-shaped clamp column and the sliding block to slide together along the fixed cylinder, moving together with the wear-resistant clamp plate. This achieves the effect of tightening and fixing channels of different widths, improving the flexibility of the equipment.

[0021] 2. In this utility model, the support column on the support plate is fixed to the bottom of the support column by long bolts. The springs in the hollow cylindrical tubes on both sides of the fixed plate are pressed down by the pressure of the support column above. The pressure column transfers the received pressure to the roller, thereby squeezing the sealing material sprayed from the spray gun. The rubber layer on the surface of the roller makes the sealing material more evenly stressed when the roller is pressing the material, so as to solve the problem of short service life caused by uneven stress on the sealing material during extrusion. Attached Figure Description

[0022] Figure 1 A three-dimensional schematic diagram of the sealing fixture for the expansion joint of the channel lining proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the electric lifting rod of the sealing clamp for the expansion joint of the channel lining proposed in this utility model.

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the roller structure of the sealing clamp for the expansion joint of the channel lining proposed in this utility model;

[0026] Figure 5 This is a schematic diagram of the spray gun barrel of the sealing fixture for the expansion joint of the channel lining proposed in this utility model.

[0027] Legend:

[0028] 1. T-shaped support plate; 2. Support column; 3. Electric telescopic mechanism; 4. Telescopic rod; 5. Sliding block; 6. Connecting block; 7. Fixed cylinder; 8. Connecting groove; 9. Fixed pivot; 10. Connecting rod; 11. C-shaped clamp column; 12. Wear-resistant clamping plate; 13. Push rod; 14. Fixing plate; 15. Long bolt; 16. Hollow cylindrical tube; 17. Spring; 18. Force-bearing column; 19. Roller; 20. Rubber layer; 21. Slide rail; 22. Sliding plate; 23. Cylinder; 24. Spray gun barrel; 25. Downward pressure column; 26. Piston plate; 27. Feeding pipe; 28. Spray gun barrel. Detailed Implementation

[0029] 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.

[0030] Reference Figures 1 to 3 This utility model provides an embodiment of a sealing fixture for expansion joints in channel linings, comprising a T-shaped support plate 1. The T-shaped support plate 1 serves as a key structural support and connection for the equipment. A support column 2 is fixedly connected inside the T-shaped support plate 1, which keeps the rolling assembly vertical. A power assembly, including an electric telescopic mechanism 3, is located inside the T-shaped support plate 1. The electric telescopic mechanism 3 is the power source for driving some of the equipment. A telescopic rod 4 is slidably connected inside the electric telescopic mechanism 3. The telescopic rod 4 is a key component connecting the electric telescopic mechanism 3. A connecting groove 8 is fixedly connected to the bottom of the telescopic rod 4, which is linked to a connecting rod 10. Two fixed rotating shafts 9 are fixedly connected inside the connecting groove 8, limiting the movement and positioning of the connecting rod 10. A connecting rod 10 is rotatably connected to the outer side of each fixed rotating shaft 9. Multiple connecting blocks 6 are fixedly connected to the left and right sides of the bottom of the T-shaped support plate 1, serving as connecting supports. A fixed block is formed, and a fixed cylinder 7 is fixedly connected inside every two connecting blocks 6. The fixed cylinder 7 ensures that the clamp does not deviate when it moves. Two sliding blocks 5 are slidably connected to the outside of the fixed cylinder 7. The sliding blocks 5 slide on the fixed cylinder 7. A C-shaped clamp column 11 is fixedly connected to the bottom of each sliding block 5. The C-shaped clamp column 11 is a clamp support column. A wear-resistant clamping plate 12 is fixedly connected to the inner bottom of the C-shaped clamp column 11. The wear-resistant clamping plate 12 is a wear-resistant and tightening clamping plate. The inside of the wear-resistant clamping plate 12 is rotatably connected to the outside of the connecting rod 10. A sliding assembly is provided on the front side of the T-shaped support plate 1. The sliding assembly includes a slide rail 21. The slide rail 21 is a sliding track. The T-shaped support plate 1 is fixedly connected to the rear side of the slide rail 21. A sliding plate 22 is slidably connected to the outside of the slide rail 21. The sliding plate 22 is a sliding and supporting plate. A cylinder 23 is fixedly connected to the top of the sliding plate 22. The cylinder 23 is a device that applies pressure to the object below.

[0031] Reference Figure 1 and Figure 4 The bottom side of the support column 2 is internally threaded with a long bolt 15, which serves as a fixing bolt. The long bolt 15 is externally threaded with a fixing plate 14, which serves as a fixing and supporting plate. The fixing plate 14 is fixed to the outside of the support column 2 by the long bolt 15. The bottom of the fixing plate 14 is provided with a rolling assembly, which includes a roller 19. The roller 19 is a roller that compresses the sealing material. A rubber layer 20 is fixedly connected to the outside of the roller 19, which makes the sealing material evenly stressed. Two force-bearing columns 18 are rotatably connected to both sides of the roller 19. The force-bearing columns 18 apply the pressure from above to the roller 19. A spring 17 is fixedly connected to the top of each force-bearing column 18. The spring 17 buffers and transmits the pressure. A hollow cylindrical tube 16 is slidably connected to the outside of the spring 17. The hollow cylindrical tube 16 compresses the spring 17 downward. The top of the hollow cylindrical tube 16 is fixedly connected with the fixing plate 14.

[0032] Reference Figure 1 and Figure 5 The bottom of the cylinder 23 is equipped with a spray gun assembly, which includes a pressure column 25. The pressure column 25 applies the pressure of the cylinder 23 to the piston plate 26. The top of the pressure column 25 is fixedly connected to the cylinder 23, and the bottom of the pressure column 25 is fixedly connected to the piston plate 26. The piston plate 26 prevents gas leakage. The outside of the piston plate 26 is slidably connected to the spray gun barrel 24, which is a container for sealing material. The bottom of the spray gun barrel 24 is fixedly connected to the spray gun pipe 28, which sprays out the sealing material. The right side of the spray gun barrel 24 is fixedly connected to the feeding pipe 27, which continuously adds sealing material to the spray gun barrel 24. The outside of the T-shaped support plate 1 is fixedly connected to two push rods 13, which allow the operator to push the equipment.

[0033] Working principle: First, after the electric telescopic machine 3 starts, it drives the telescopic rod 4 to move upward. Then, the connecting groove 8 moves upward along with the telescopic rod 4. The two connecting rods 10 start to rotate with the two fixed rotating shafts 9 as their endpoints. The other end of the connecting rod 10 is connected to the wear-resistant clamping plate 12. The two connecting rods 10 drive the two wear-resistant clamping plates 12, together with the two C-shaped clamping columns 11, to move towards each other along the two fixed cylinders 7 through the two sliding blocks 5. The two fixed cylinders 7 are connected to multiple connecting blocks 6 at the bottom of the T-shaped support plate 1 until the wear-resistant clamping plate 12 is tightly engaged with the channel. At the same time, the electric telescopic machine 3 stops working, thereby enabling the equipment to clamp channels of different widths, preventing the equipment from deviating from its position during operation, and improving the flexibility and adjustability of the equipment.

[0034] After the wear-resistant clamping plate 12 clamps the channel, sealing material is continuously injected into the feeding pipe 27 inside the spray gun barrel 24 on the fixed sliding plate 22. Under the combined action of the cylinder 23, the pressing column 25, and the piston plate 26, it is injected into the channel through the spray gun pipe 28. The sliding plate 22 slides back and forth on the slide rail 21, which allows the sealing material sprayed from the spray gun pipe 28 to be sprayed evenly in the channel. The support column 2 on the T-shaped support plate 1 is fixed to the bottom of the fixing plate 14 by long bolts 15. The springs 17 inside the hollow cylindrical tubes 16 on both sides are pressed down by the support column 2 above, which presses down on the force-bearing column 18. The force-bearing column 18 transfers the received pressure to the roller 19, thereby squeezing the sealing material sprayed from the spray gun tube 28. The rubber layer 20 on the surface of the roller 19 makes the sealing material more evenly stressed when the roller 19 is pressing the material. The operator pushes the equipment forward through the push rod 13, thereby making the equipment squeeze the sealing material more compact and flat, and improving the durability of the sealing material.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing fixture for expansion joints in channel linings, comprising a T-shaped support plate (1), characterized in that: The T-shaped support plate (1) is fixedly connected to a support column (2). The T-shaped support plate (1) is equipped with a power assembly. Multiple connecting blocks (6) are fixedly connected to the bottom left and right sides of the T-shaped support plate (1). A fixed cylinder (7) is fixedly connected to the interior of every two connecting blocks (6). Two sliding blocks (5) are slidably connected to the exterior of the fixed cylinder (7). A C-shaped clamp column (11) is fixedly connected to the bottom of each sliding block (5). A wear-resistant clamp plate (12) is fixedly connected to the inner bottom of the C-shaped clamp column (11). A connecting rod (10) is rotatably connected to the interior of the wear-resistant clamp plate (12). A sliding assembly is provided on the front side of the T-shaped support plate (1).

2. The sealing fixture for expansion joints in channel linings according to claim 1, characterized in that: The power assembly includes an electric telescopic mechanism (3), the drive end of which is fixedly connected to a telescopic rod (4), the bottom of which is fixedly connected to a connecting groove (8), and the interior of the connecting groove (8) is fixedly connected to two fixed rotating shafts (9), the outer side of each fixed rotating shaft (9) being rotatably connected to the interior of the connecting rod (10) on the side away from the wear-resistant clamp (12).

3. The sealing fixture for expansion joints in channel linings according to claim 1, characterized in that: The bottom side of the support column (2) is internally threaded with a long bolt (15), and the external thread of the long bolt (15) is connected to a fixing plate (14). The fixing plate (14) is fixed to the outside of the support column (2) by the long bolt (15), and the bottom of the fixing plate (14) is provided with a rolling assembly.

4. The sealing fixture for expansion joints in channel lining according to claim 3, characterized in that: The rolling assembly includes a roller (19), a rubber layer (20) is fixedly connected to the outer side of the roller (19), two force-bearing columns (18) are rotatably connected to both sides of the roller (19), a spring (17) is fixedly connected to the top of each force-bearing column (18), two hollow cylindrical tubes (16) are fixedly connected to the bottom of the fixing plate (14), and the hollow cylindrical tubes (16) are slidably connected to the outside of the springs (17).

5. The sealing fixture for expansion joints in channel linings according to claim 4, characterized in that: The sliding assembly includes a slide rail (21), a T-shaped support plate (1) is fixedly connected to the rear side of the slide rail (21), a sliding plate (22) is slidably connected to the outer side of the slide rail (21), a cylinder (23) is fixedly connected to the top of the sliding plate (22), and a spray gun assembly is provided at the bottom of the cylinder (23).

6. The sealing fixture for expansion joints in channel linings according to claim 5, characterized in that: The spray gun assembly includes a pressure column (25), a cylinder (23) is fixedly connected to the top of the pressure column (25), a piston plate (26) is fixedly connected to the bottom of the pressure column (25), a spray gun barrel (24) is slidably connected to the outside of the piston plate (26), a spray gun tube (28) is fixedly connected to the bottom of the spray gun barrel (24), and a feeding pipe (27) is fixedly connected to the right side of the spray gun barrel (24).

7. The sealing fixture for expansion joints in channel linings according to claim 4, characterized in that: The T-shaped support plate (1) is externally fixedly connected to two push rods (13), and the top of the force-bearing column (18) is slidably connected to the inside of the hollow cylindrical tube (16).