A fastening pin assembly for a kiln pressure gate

By designing a tight pin assembly consisting of a valve body, pin, sliding rod, and spring, and combining it with a motor-driven traction rope system, the loosening and manual control issues of the tight pin assembly of the kiln pressure gate were solved, achieving stable positioning and automated operation, thus improving work efficiency and safety.

CN224283516UActive Publication Date: 2026-05-26SHANXI LIHU GLASS (GRP) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI LIHU GLASS (GRP) CO LTD
Filing Date
2025-07-11
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing pressure gate assembly for kilns has a simple structure, is inconvenient to use, is prone to loosening, requires manual control, cannot be quickly positioned and fixed, and is inconvenient to operate due to the temperature of the kiln body.

Method used

A pin assembly comprising a valve body, pin, sliding rod, inclined block, limiting rod, and spring structure is designed. Through a traction rope system supported by springs and driven by a motor, automatic positioning and remote control are achieved. Combined with the limiting structure and support frame, stable support is provided to avoid loosening and temperature effects.

Benefits of technology

It achieves stable positioning of the fastening pin components, automated control, avoids the inconvenience of manual operation, improves work efficiency and safety, adapts to remote control, and reduces the impact of temperature on the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224283516U_ABST
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Abstract

This utility model discloses a fastening pin assembly for a kiln pressure gate, including a valve body, a pin slidably connected to the valve body, a valve plate inside the valve body, a receiving hole on the pin, a limiting rod inside the receiving hole, a sliding rod slidably connected inside the pin, an inclined block inside the limiting rod, the sliding rod cooperating with the inclined block, a pin groove on the valve plate, a limiting groove inside the pin groove, the limiting rod cooperating with the limiting groove, a first support frame and a second support frame on the valve body, a first pressure spring between the pin and the first support frame, and a second pressure spring between the second support frame and the sliding rod, and the second pressure spring is located within the first pressure spring. This device provides more stable and faster positioning and is convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of gate assembly technology, and more specifically, it relates to a fastening pin assembly for a kiln pressure gate. Background Technology

[0002] Valves are indispensable components of fluid conveying devices and are also commonly found in kiln equipment. They are used to control the flow of flue gas. In order to ensure the stability of the valve plate assembly, it is fixed by a fastening pin assembly, thereby ensuring the stable operation of the valve.

[0003] Common locking pin assemblies are relatively simple, generally consisting of a movable pin and a corresponding slot. During operation, the valve plate assembly may sway due to the impact of airflow. Over time, the pin head may loosen and slide out of the slot, affecting the limiting effect and limiting stability. Furthermore, common locking pin assemblies require manual movement control, which typically involves pushing the pin manually. This process takes time and cannot quickly achieve positioning and fixation. Additionally, to prevent the furnace temperature from affecting the electronic equipment, common locking pin assemblies are usually manually controlled, requiring a worker to be nearby and operate them, which is inconvenient. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a fastening pin assembly for kiln pressure gate, so as to solve the technical problems mentioned in the background art of simple structure but inconvenient use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fastening pin assembly for a kiln pressure gate, comprising a valve body, a pin slidably connected to the valve body, a valve plate slidably connected to the valve body, the pin cooperating with the valve plate, a receiving hole on the pin, a limiting rod inside the receiving hole, a sliding rod slidably connected to the pin, an inclined block inside the limiting rod, the sliding rod cooperating with the inclined block, a pin groove on the valve plate, a limiting groove inside the pin groove, and the limiting rod cooperating with the limiting groove;

[0008] The valve body is provided with a first support frame and a second support frame. A first pressure spring is provided between the pin and the first support frame, and a second pressure spring is provided between the second support frame and the sliding rod. The distance between the second support frame and the pin is greater than the distance between the first support frame and the pin, and the elastic potential energy of the second pressure spring is weaker than that of the first pressure spring.

[0009] The present invention is further configured such that a traction rope is provided at the outer end of the sliding rod, a winding frame is provided at the outer end of the valve body, a winding roller is rotatably connected to the winding frame, the traction rope cooperates with the winding roller, a winding motor is provided at one end of the winding frame, the winding motor cooperates with the winding roller, and a motor without braking capability is selected for easy control.

[0010] The present invention is further configured such that a sliding groove is provided in the pin body, the sliding rod cooperates with the sliding groove, one end of the sliding groove is connected to the receiving hole, and the other end is provided with a limiting hole, and the traction rope cooperates with the limiting hole to make the movement stable.

[0011] The present invention is further configured such that a sub-bracket is provided at the front end of the sliding rod, and an inclined groove is provided on the inclined block. The sub-bracket and the inclined groove slide together, making the fit more stable.

[0012] The present invention is further configured such that the sub-support is provided with a limiting slider, and the inclined block is provided with a limiting groove, the limiting groove and the limiting slider slide in cooperation, so as to make the connection more stable.

[0013] The present invention is further provided that the front end of the pin is rotatably connected to a contact wheel for easy engagement.

[0014] The present invention is further configured such that a limiting frame is provided on the valve body, and the limiting frame slides with the pin to make the pin move stably.

[0015] The present invention is further configured such that a rotating roller is provided at the lower end of the limiting frame, and the rotating roller cooperates with the pin to make the pin move smoothly.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a fastening pin assembly for a kiln pressure gate, which has the following beneficial effects:

[0018] 1. The valve body support device allows the pin to engage with the valve plate through the pin groove. The combination of the receiving hole, limiting rod, sliding rod, inclined block and limiting groove provides an additional limiting structure. The sliding rod controls the movement of the limiting rod through the inclined block. The combination of the limiting rod and the limiting groove forms a limiting structure perpendicular to the direction of pin movement, thereby making the positioning and limiting more stable.

[0019] 2. The first and second support frames provide a support structure, and the first and second pressure springs work together to provide a power structure, so that the pin body and the pin groove are engaged. When the pin body needs to be positioned, the pin body is aligned with the pin groove, and the first and second pressure springs work together to move the pin body in the first time. Positioning can be performed without the need for worker control, which is convenient for work.

[0020] 3. The winding roller is supported by the winding frame and works with the traction rope to provide a structure for the control pin. The winding motor provides power to control the winding roller, thereby controlling the traction rope. The traction rope controls the pin, which can adapt to a longer distance and avoid the motor equipment being too close to the furnace body and affected by temperature. At the same time, compared with the push rod structure, the motor structure has no braking ability and will not affect the spring structure to push the pin to move, so there will be no interference. Attached Figure Description

[0021] Figure 1 This is a front structural diagram of a fastening pin assembly for a kiln pressure gate according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the pin body and the winding motor in this utility model;

[0023] Figure 3 This is a cross-sectional view of the internal pin groove and limiting groove mating structure of the valve plate in this utility model;

[0024] Figure 4 This is a cross-sectional view of the internal sliding rod and limiting rod structure of the pin body in this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the limiting frame after disassembly in this utility model.

[0026] In the diagram: 1. Valve body; 2. Pin; 3. Valve plate; 4. Receiving hole; 5. Limiting rod; 6. Sliding rod; 7. Inclined block; 8. Pin groove; 9. Limiting groove; 10. First support frame; 11. Second support frame; 12. First pressure spring; 13. Second pressure spring; 14. Traction rope; 15. Rewinding frame; 16. Rewinding roller; 17. Rewinding motor; 18. Sliding groove; 19. Limiting through hole; 20. Dividing bracket; 21. Inclined groove; 22. Limiting slider; 23. Limiting slide groove; 24. Contact wheel; 25. Limiting frame; 26. Rotating roller. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figure 1-5 A fastening pin assembly for a kiln pressure gate includes a valve body 1, a pin 2 slidably connected to the valve body 1, a valve plate 3 slidably connected to the valve body 1, the pin 2 cooperating with the valve plate 3, a receiving hole 4 opened on the pin 2, a limiting rod 5 provided in the receiving hole 4, a sliding rod 6 slidably connected in the pin 2, an inclined block 7 provided on the inner side of the limiting rod 5, the sliding rod 6 cooperating with the inclined block 7, a pin groove 8 opened on the valve plate 3, a limiting groove 9 opened in the pin groove 8, and the limiting rod 5 cooperating with the limiting groove 9;

[0031] The valve body 1 is provided with a first support frame 10 and a second support frame 11. A first pressure spring 12 is provided between the pin 2 and the first support frame 10. A second pressure spring 13 is provided between the second support frame 11 and the sliding rod 6. The distance between the second support frame 11 and the pin 2 is greater than the distance between the first support frame 10 and the pin 2. The elastic potential energy of the second pressure spring 13 is weaker than that of the first pressure spring 12.

[0032] In this embodiment, the valve body 1 supports the valve plate 3. When the valve plate 3 is working, the pin 2 cooperates with the valve plate 3 to fix the valve plate 3, so that the pin 2 is inserted into the pin groove 8 to provide a limiting structure. After the pin 2 is inserted into the pin groove 8, the sliding rod 6 is moved, which pushes the inclined block 7 to move. Under the action of the inclined surface of the inclined block 7, the thrust is redirected, and the limiting rod 5 is moved through the inclined block 7, passing through the receiving hole 4 and inserting into the limiting groove 9. The cooperation between the limiting rod 5 and the limiting groove 9 provides an additional limiting structure to prevent the pin 2 from moving in the pin groove 8, thereby ensuring the stability of the limiting and avoiding loosening or other reasons that could cause the pin 2 to slip off.

[0033] More specifically, when the valve plate 3 moves, the pin 2 is on the outside of the valve plate 3, in contact with the surface of the outer end of the valve plate 3. When the valve plate 3 moves to the corresponding working position, the pin groove 8 aligns with the pin 2. At this time, the pin 2 loses resistance. Under the support of the first support frame and the second support frame 11, the first pressure spring 12 applies pressure to the pin 2, and the second pressure spring 13 applies pressure to the sliding rod 6, so that the pin 2 quickly inserts into the pin groove 8. Under the difference in position and elastic potential energy, the thrust provided by the second pressure spring 13 will not be higher than that of the first pressure spring 12, so that the sliding rod 6 slides into the pin groove 8 at the same speed as the pin 2, thereby restricting the valve plate 3.

[0034] Please see Figure 1 and Figure 2 As one implementation method for controlling the pin body: the outer end of the sliding rod 6 is provided with a traction rope 14, the outer end of the valve body 1 is provided with a winding frame 15, a winding roller 16 is rotatably connected on the winding frame 15, the traction rope 14 cooperates with the winding roller 16, one end of the winding frame 15 is provided with a winding motor 17, the winding motor 17 cooperates with the winding roller 16, and a motor without braking capability is selected.

[0035] Specifically, the winding motor 17 provides power for control. Supported by the winding frame 15, it drives the winding roller 16 to rotate. The winding roller 16 pulls the traction rope 14, causing the traction rope 14 to pull the sliding rod 6 and the pin 2 to move. The attached figure is for reference only. The specific position of the winding motor 17 and the specific length of the traction rope 14 can be set according to the actual equipment conditions. It can also be combined with relevant guide structures to achieve traction in different directions. How to perform traction is a well-known technology and will not be described in detail. If necessary, the winding motor 17 can also be set outside the valve body 1, away from the kiln body.

[0036] Please see Figure 4 As a further embodiment of the pin body: a sliding groove 18 is provided in the pin body 2, the sliding rod 6 cooperates with the sliding groove 18, one end of the sliding groove 18 is connected to the receiving hole 4, and the other end is provided with a limiting hole 19, the traction rope 14 cooperates with the limiting hole 19.

[0037] Specifically, the sliding groove 18 provides space for the sliding rod 6 to move stably, and the limiting hole 19 provides space for the traction movement and limits the movement of the sliding rod 6.

[0038] Please see Figure 4 As a further embodiment of the sliding rod: the front end of the sliding rod 6 is provided with a bracket 20, and the inclined block 7 is provided with an inclined groove 21, and the bracket 20 and the inclined groove 21 are slidably engaged.

[0039] Specifically, when the sliding rod 6 moves, it cooperates with the inclined groove 21 through the bracket 20.

[0040] Please see Figure 4 As a further embodiment of the split support: the split support 20 is provided with a limiting slider 22, and the inclined block 7 is provided with a limiting groove 23, which slides in cooperation with the limiting slider 22.

[0041] Specifically, by restricting the cooperation between the slider 22 and the limiting groove 23, the slider 22 slides in the limiting groove 23, thereby ensuring a stable cooperation between the bracket 20 and the inclined groove 21.

[0042] Please see Figure 2 As a further embodiment of the pin body: the front end of the pin body 2 is provided with a contact wheel 24.

[0043] Specifically, the pin 2 contacts the valve plate 3 through the contact wheel 24, ensuring smooth movement.

[0044] Please see Figure 2 As a further embodiment of the valve body: the valve body 1 is provided with a limiting frame 25, and the limiting frame 25 is slidably engaged with the pin 2.

[0045] Specifically, the pin 2 is restricted by the limiting frame 25, thereby keeping the sliding of the pin 2 stable.

[0046] Please see Figure 5 As a further embodiment of the limiting frame: the lower end of the limiting frame 25 is provided with a rotating roller 26, which cooperates with the pin 2.

[0047] Specifically, the rotating roller 26 contacts the pin 2 to support the pin 2, making the movement of the pin 2 smoother.

[0048] In summary, when the overall equipment is in use (or running):

[0049] When the equipment is in use, the valve body 1 provides a support structure. When the valve plate 3 is working, the pin 2 engages with the valve plate 3. The pin 2 contacts the valve plate 3 through the contact wheel 24, ensuring smooth movement of the valve plate 3. The pin 2 is located on the outside of the valve plate 3 and contacts the outer surface of the valve plate 3. When the valve plate 3 moves to the corresponding working position, the pin groove 8 aligns with the pin 2. At this time, the pin 2 loses resistance. Under the support of the first support frame and the second support frame 11, the first pressure spring 12 applies pressure to the pin 2, and the second pressure spring 13 applies pressure to the sliding rod 6, causing the pin 2 to quickly insert into the pin groove 8. Due to the difference in position and elastic potential energy, the second pressure spring 13 applies pressure to the sliding rod 6. The thrust provided by the force spring 13 will not exceed that of the first pressure spring 12, so that the sliding rod 6 slides into the pin groove 8 at the same speed as the pin 2, thereby restricting the valve plate 3. When the restriction is released, the winding motor 17 provides power for control. Under the support of the winding frame 15, the winding roller 16 is driven to rotate. The winding roller 16 pulls the traction rope 14, so that the traction rope 14 pulls the sliding rod 6 and the pin 2 to move, thereby pulling the pin 2 out of the pin groove 8. During the movement of the pin 2, the pin 2 is restricted by the limiting frame 25, so that the sliding of the pin 2 remains stable. The rotating roller 26 contacts the pin 2 to support the pin 2, making the movement of the pin 2 smoother.

[0050] After the pin 2 is inserted into the pin groove 8, a limiting structure is provided to fix the valve plate 3. After the pin 2 is inserted into the pin groove 8, the sliding rod 6 moves. The sliding groove 18 provides space for the sliding rod 6 to move stably. The limiting hole 19 provides space for traction movement and limits the movement of the sliding rod 6. The sliding rod 6 pushes the inclined block 7 to move. Through the cooperation of the limiting slider 22 and the limiting groove 23, the limiting slider 22 slides in the limiting groove 23, thereby making the sub-support 20 and the inclined groove 21 stably cooperate. Through the cooperation of the sub-support 20 and the inclined groove 21, the thrust is redirected under the action of the inclined surface of the inclined block 7. The limiting rod 5 moves through the inclined block 7, passes through the receiving hole 4, and is inserted into the limiting groove 9. Through the cooperation of the limiting rod 5 and the limiting groove 9, an additional limiting structure is provided to prevent the pin 2 from moving in the pin groove 8, thereby ensuring the stability of the restriction and preventing the pin 2 from slipping due to loosening.

[0051] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fastening pin assembly for a kiln pressure gate, comprising a valve body (1), characterized in that: A pin (2) is slidably connected to the valve body (1), and a valve plate (3) is slidably connected to the valve body (1). The pin (2) cooperates with the valve plate (3). A receiving hole (4) is opened on the pin (2). A limiting rod (5) is provided in the receiving hole (4). A sliding rod (6) is slidably connected in the pin (2). An inclined block (7) is provided on the inner side of the limiting rod (5). The sliding rod (6) cooperates with the inclined block (7). A pin groove (8) is opened on the valve plate (3). A limiting groove (9) is opened in the pin groove (8). The limiting rod (5) cooperates with the limiting groove (9). The valve body (1) is provided with a first support frame (10) and a second support frame (11). A first pressure spring (12) is provided between the pin (2) and the first support frame (10). A second pressure spring (13) is provided between the second support frame (11) and the sliding rod (6). The distance between the second support frame (11) and the pin (2) is greater than the distance between the first support frame (10) and the pin (2). The elastic potential energy of the second pressure spring (13) is weaker than that of the first pressure spring (12).

2. The fastening pin assembly for a kiln pressure gate according to claim 1, characterized in that: The sliding rod (6) is provided with a traction rope (14) at its outer end, and the valve body (1) is provided with a winding frame (15) at its outer end. A winding roller (16) is rotatably connected to the winding frame (15). The traction rope (14) cooperates with the winding roller (16). A winding motor (17) is provided at one end of the winding frame (15). The winding motor (17) cooperates with the winding roller (16).

3. A fastening pin assembly for a kiln pressure gate according to claim 2, characterized in that: The pin (2) has a sliding groove (18) inside, the sliding rod (6) cooperates with the sliding groove (18), one end of the sliding groove (18) is connected to the storage hole (4), and the other end has a limiting hole (19), the traction rope (14) cooperates with the limiting hole (19).

4. A fastening pin assembly for a kiln pressure gate according to claim 1, characterized in that: The sliding rod (6) has a sub-bracket (20) at its front end, and the inclined block (7) has an inclined groove (21) on its surface. The sub-bracket (20) and the inclined groove (21) slide together.

5. A fastening pin assembly for a kiln pressure gate according to claim 4, characterized in that: The sub-support (20) is provided with a limiting slider (22), and the inclined block (7) is provided with a limiting groove (23). The limiting groove (23) and the limiting slider (22) slide together.

6. A fastening pin assembly for a kiln pressure gate according to claim 1, characterized in that: The pin (2) is rotatably connected to a contact wheel (24) at its front end.

7. A fastening pin assembly for a kiln pressure gate according to claim 1, characterized in that: The valve body (1) is provided with a limiting frame (25), and the limiting frame (25) is slidably engaged with the pin (2).

8. A fastening pin assembly for a kiln pressure gate according to claim 7, characterized in that: The lower end of the limiting frame (25) is provided with a rotating roller (26), which cooperates with the pin (2).