Heavy valve plate clamping shaft structure

CN224927815UActive Publication Date: 2026-11-03STATE GRID ENERGY HAMI COAL POWER CO LTD
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Patent Information

Application Number
CN202522683319.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-18
Publication Date
2026-11-03
Estimated Expiration
2035-12-18

AI Technical Summary

Technical Problem

In the prior art, the clamping device for heavy valve plates needs to be frequently disassembled and replaced, which causes the positioning reference to shift, affects the machining accuracy, and makes it difficult to adapt to the machining requirements of valve plates of different specifications.

Method used

A heavy-duty valve plate clamping shaft structure was designed, which uses an electric telescopic cylinder and telescopic rod in conjunction with pneumatic locking to achieve automatic fitting and clamping of valve plates with different diameters, thicknesses or edge contours. Stable clamping of valve plates of various specifications is achieved through pneumatic locking.

Benefits of technology

It can stably clamp valve plates of various specifications without disassembling or changing the fixture, which improves the applicability and safety of processing, reduces the intensity of operation, and ensures positional accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heavy valve plate clamping axle structure, specifically relates to valve plate clamping technical field, including bottom plate, the bottom plate upper center position is equipped with support seat, the support seat upper portion is equipped with the installation component of placing valve plate, the bottom plate front part is equipped with support frame, the support frame upper portion with installation component longitudinal position is equipped with fixed establishment, the bottom plate upper right side is equipped with feeding mechanism. The utility model discloses a heavy valve plate clamping axle structure, the utility model discloses through the installation component of design, when heavy valve plate is placed on telescopic link, telescopic link can slide along round seat under the valve plate gravity, cooperates the elastic force of telescopic spring, and the valve plate surface of different diameter, thickness or edge profile is automatically attached, need not to dismantle and replace clamp component to realize the stable clamping of multiple specifications valve plate, avoids the fixture positioning reference deviation problem caused by the frequent disassembly, improves the applicability and practicality of device in multiple specifications valve plate processing scene.
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Description

Technical Field

[0001] This utility model relates to the field of valve plate clamping technology, and in particular to a heavy-duty valve plate clamping shaft structure. Background Technology

[0002] Heavy-duty valve plates, as core components of critical equipment such as fluid control and pressure regulation, are widely used in petrochemical, water conservancy projects, heavy machinery and other scenarios where the stability and safety requirements of equipment are extremely high.

[0003] These valve plates are typically large in size, heavy in weight, and require strict structural precision. During processing, assembly, and testing, they all require specialized clamping devices to achieve stable positioning in order to ensure the processing accuracy and operational safety of subsequent processes.

[0004] Currently, the industry mostly uses traditional rigid support fixtures or simple hoisting and positioning structures for clamping heavy valve plates. The support structure of traditional fixtures is mostly designed with fixed dimensions and can only be used to position valve plates of specific models. However, in actual production, the diameter, thickness, and edge contour of heavy valve plates often vary significantly due to different application scenarios. When it is necessary to switch to processing valve plates of different specifications, the entire fixture assembly needs to be disassembled and replaced. This is not only cumbersome and time-consuming, but also causes the fixture positioning reference to shift due to frequent disassembly and assembly, which further affects the subsequent processing accuracy.

[0005] Therefore, a heavy-duty valve plate clamping shaft structure is needed to solve the above problems. Utility Model Content

[0006] The main purpose of this utility model is to provide a heavy-duty valve plate clamping shaft structure, which can effectively solve the problems mentioned above.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A heavy-duty valve plate clamping shaft structure includes a base plate, a support seat at the center of the upper part of the base plate, an mounting assembly for placing a valve plate on the upper part of the support seat, a support frame at the front of the base plate, a fixing mechanism for fixing the valve plate at the upper part of the support frame and longitudinally positioned with the mounting assembly, and a feeding mechanism on the right side of the upper part of the base plate. After the valve plate is placed on the feeding mechanism, it is transported to the mounting assembly by the feeding mechanism.

[0009] Preferably, the fixing mechanism includes an electric telescopic cylinder, the piston rod of which passes through the support frame and extends to the lower part, and the piston rod of the electric telescopic cylinder is provided with a pressing block.

[0010] Preferably, the lower part of the extrusion block is made of rubber.

[0011] Preferably, the mounting assembly includes a circular base, which is mounted at the upper center of the support base. The upper part of the circular base has an annular cavity, and the bottom wall of the annular cavity is provided with a plurality of telescopic springs. Each of the telescopic springs is provided with a telescopic rod at its upper part. The lower part of the circular base has a connecting groove communicating with the annular cavity, and the lower center of the circular base is provided with a connecting pipe for installing an external air pipe.

[0012] Preferably, several of the telescopic rods pass through the upper part of the circular base and are slidably connected thereto.

[0013] Preferably, the feeding mechanism includes support plates symmetrically installed on the upper right side of the base plate. The lower part of the two support plates and the upper part of the base plate are respectively provided with guide rods and threaded rods. The outer surfaces of the guide rods and threaded rods are provided with connecting sleeves. The outer surfaces of the two connecting sleeves are symmetrically provided with concave plates close to each other. The inner cavities of the two connecting sleeves are provided with feeding plates. After the valve plate is placed on the feeding plate, the feeding plate transports the valve plate to the support frame through the two concave plates.

[0014] Preferably, the connecting sleeve at the front slides on the surface of the guide rod, and the connecting sleeve at the rear is threadedly connected to the threaded rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model, through its designed installation components, allows the telescopic rod to slide along the circular base under the weight of the valve plate when the heavy valve plate is placed on it. Combined with the elastic force of the telescopic spring, it automatically conforms to the surface of valve plates with different diameters, thicknesses, or edge contours. Subsequently, air is injected into the annular cavity via an external air pipe, and the air pressure locks the telescopic rod in place. Stable clamping of valve plates of various specifications can be achieved without disassembling or replacing the clamping components, avoiding the problem of clamp positioning reference offset caused by frequent disassembly and assembly. This improves the applicability and practicality of the device in multi-specification valve plate processing scenarios.

[0017] 2. The present invention, through its designed feeding mechanism, can transport heavy valve plates to the top of the installation components and place them stably, reducing the intensity of manual operation, ensuring the positional accuracy of the valve plates throughout the entire process from transportation to fixing, and improving the safety and stability of the overall clamping operation. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0020] Figure 3 This is a schematic diagram of the fixing mechanism structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the feeding mechanism of this utility model.

[0023] In the diagram: 1. Base plate; 2. Support base; 3. Mounting assembly; 4. Feeding mechanism; 5. Support frame; 6. Fixing mechanism; 61. Electric telescopic cylinder; 62. Extrusion block; 31. Round seat; 32. Telescopic spring; 33. Telescopic rod; 34. Annular cavity; 35. Connecting groove; 36. Connecting pipe; 41. Support plate; 42. Guide rod; 43. Motor; 44. Threaded rod; 45. Connecting sleeve; 47. Concave plate; 48. Feeding plate. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Example 1, as Figure 1 , Figure 2 and Figure 3 As shown, a heavy-duty valve plate clamping shaft structure includes a base plate 1, a support seat 2 at the upper center of the base plate 1, an mounting assembly 3 for placing the valve plate on the upper part of the support seat 2, a support frame 5 at the front of the base plate 1, a fixing mechanism 6 for fixing the valve plate at the upper part of the support frame 5 and the mounting assembly 3 longitudinally, and a feeding mechanism 4 on the upper right side of the base plate 1. After the valve plate is placed on the feeding mechanism 4, the valve plate is transported to the mounting assembly 3 by the feeding mechanism 4.

[0026] Furthermore, the fixing mechanism 6 includes an electric telescopic cylinder 61, the piston rod of which passes through the support frame 5 and extends to the lower part, and the piston rod of the electric telescopic cylinder 61 is provided with a pressing block 62.

[0027] Furthermore, the lower part of the extrusion block 62 is made of rubber.

[0028] Before implementing this device, the base plate 1 must first be installed on the processing table, and then the device must be powered on in the same way as the processing table. After that, the staff will connect the installation component 3 to the external air pipe. The external air pipe is connected to the installation component 3 through the rectangular hole opened under the base plate 1.

[0029] The implementation process of this device is as follows:

[0030] After the device is installed on the processing table, the operator can place the heavy valve plate on the feeding mechanism 4 and then start the feeding mechanism 4 to work, driving the valve plate to move upward. After it moves to a position higher than the mounting component 3, the operator can push the feeding mechanism 4 to transport the flip plate to the upper position of the mounting component 3. Then the operator controls the feeding mechanism 4 to work again, driving the valve plate to move downward and install the valve plate on the surface of the mounting component 3. Then the feeding mechanism 4 continues to move downward and stops when it touches the surface of the support base 2.

[0031] When the valve plate comes into contact with the mounting component 3, it will extend and retract to fit tightly against the surface of the valve plate. Then, the operator will open the external air pipe connected to the mounting component 3 to supply gas into the mounting component 3 and increase the air pressure inside the mounting component 3. At this time, the mounting component 3 will no longer extend and retract, and will be fixed in the current state of fitting with the valve plate.

[0032] Next, the staff controls the electric telescopic cylinder 61 to work, so that the piston rod of the electric telescopic cylinder 61 extends and retracts downward, driving the extrusion block 62 to move downward and contact the valve plate, thereby fixing the valve plate on the upper part of the mounting component 3, and then processing the valve.

[0033] In the above process, after the valve plate is processed, the operator first controls the electric telescopic cylinder 61 to work, so that the piston rod of the electric telescopic cylinder 61 drives the extrusion block 62 to move upward, thereby removing the fixation of the valve plate. Then, the operator controls the feeding mechanism 4 to work, and the valve plate can be removed from the mounting assembly 3 through the feeding mechanism 4.

[0034] In the above, the design of the extrusion block 62 being made of rubber allows the extrusion block 62 to fit tightly against the surface of the valve plate.

[0035] In Example 2, further, in order to achieve a close fit between the valve plate and the mounting assembly 3 after the valve plate is installed on the mounting assembly 3, refer to... Figure 4 The mounting component 3 includes a circular seat 31, which is mounted on the upper center of the support base 2. An annular cavity 34 is provided on the upper part of the circular seat 31. Several telescopic springs 32 are provided on the bottom wall of the annular cavity 34. Each of the several telescopic springs 32 is provided with a telescopic rod 33 on its upper part. A connecting groove 35 communicating with the annular cavity 34 is provided on the lower part of the circular seat 31. A connecting pipe 36 for installing an external air pipe is provided at the lower center of the circular seat 31.

[0036] Furthermore, several telescopic rods 33 pass through the upper part of the circular seat 31 and are slidably connected to it.

[0037] In the above process, after the feeding mechanism 4 moves the valve plate to the upper part of the circular seat 31, the operator controls the feeding mechanism 4 to move downward. At this time, the feeding mechanism 4 will pass through the surface of the circular seat 31 and place the valve plate on several telescopic rods 33. At this time, the several telescopic rods 33 will extend and retract on the upper part of the circular seat 31 under the influence of the gravity of the valve plate and extend into the annular cavity 34. At this time, the telescopic rods 33 will compress the telescopic spring 32. Under the action of the telescopic spring 32, the upper part of the telescopic rods 33 will stick to the surface of the valve plate.

[0038] In the above, the external air pipe is installed in the inner cavity of the connecting pipe 36. After the valve plate is placed on the telescopic rod 33, the operator opens the external air pipe and injects air into the connecting groove 35 through the connecting pipe 36. The gas then flows into the annular cavity 34 through the connecting groove 35, increasing the air pressure in the annular cavity 34. This prevents the telescopic rod 33 from moving downwards and keeps it in contact with the valve plate.

[0039] In the above process, the operator can then fix the valve plate onto the telescopic rod 33 using the fixing mechanism 6 and perform processing on the valve plate.

[0040] As described above, the telescopic rod 33, with its self-extending design, allows the device to clamp and fix valve plates of different shapes, thus improving the applicability of the device.

[0041] In the above, when the valve plate is removed from the telescopic rod 33, the telescopic spring 32 will release the pressure, pushing the telescopic rod 33 to move upward, so that the telescopic rod 33 returns to its original state.

[0042] Furthermore, in order to achieve the purpose of conveying the valve plates of the feeding mechanism 4, please refer to... Figure 5 The feeding mechanism 4 includes support plates 41 symmetrically installed on the upper right side of the base plate 1. The lower part of the two support plates 41 and the upper part of the base plate 1 are respectively provided with guide rods 42 and threaded rods 44. The outer surfaces of the guide rods 42 and threaded rods 44 are provided with connecting sleeves 45. The outer surfaces of the two connecting sleeves 45 are symmetrically provided with concave plates 47 close to each other. The inner cavities of the two connecting sleeves 45 are provided with feeding plates 48. After the valve plate is placed on the feeding plate 48, the feeding plate 48 conveys the valve plate to the support frame 5 through the two concave plates 47.

[0043] Furthermore, the connecting sleeve 45 located at the front slides on the surface of the guide rod 42, and the connecting sleeve 45 located at the rear is threadedly connected to the threaded rod 44.

[0044] In the above process, the operator places the valve plate on the left side of the loading plate 48 so that the loading plate 48 supports the valve plate. Then, the motor 43 is started to work, and the output end of the motor 43 drives the threaded rod 44 to rotate through the coupling. When the threaded rod 44 rotates, it will drive the connecting sleeve 45 to move upward through the threaded connection with the connecting sleeve 45. Then, the connecting sleeve 45 drives the loading plate 48 and the valve plate to move upward through the concave plate 47, so that the valve plate moves to the upper position of the telescopic rod 33.

[0045] When the feeding plate 48 moves, the concave plate 47 on the front side will drive the connecting sleeve 45 on the front side to slide on the surface of the guide rod 42, thereby improving the stability of the feeding plate 48 movement.

[0046] In the above process, after the valve plate moves to the upper part of the telescopic rod 33, the operator can push the feeding plate 48 to slide in the inner cavity of the two concave plates 47, so that the feeding plate 48 drives the valve plate to move to the upper position of the mounting component 3. Then, the operator controls the motor 43 to work again, so that the motor 43 drives the feeding plate 48 and the valve plate downward through the threaded rod 44, the connecting sleeve 45 and the concave plate 47. The rectangular hole formed on the left side of the feeding plate 48 is larger than the diameter of the round seat 31, so that when the feeding plate 48 moves downward, it passes through the round seat 31 and places the valve plate on the telescopic rod 33. Then the feeding plate 48 passes through the round seat 31 and contacts the support seat 2, so that the valve plate can be placed on the telescopic rod 33.

[0047] It should be noted that the specific installation method, circuit connection method and control method of the electric telescopic cylinder 61 and motor 43 used in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty valve plate clamping shaft structure, comprising a base plate (1), wherein a support seat (2) is provided at the upper center of the base plate (1), characterized in that: The upper part of the support base (2) is provided with an installation assembly (3) for placing the valve plate. The front part of the base plate (1) is provided with a support frame (5). The upper part of the support frame (5) and the longitudinal position of the installation assembly (3) are provided with a fixing mechanism (6) for fixing the valve plate. The upper right side of the base plate (1) is provided with a feeding mechanism (4). After the valve plate is placed on the feeding mechanism (4), the valve plate is transported to the installation assembly (3) through the feeding mechanism (4).

2. The heavy-duty valve plate clamping shaft structure according to claim 1, characterized in that: The fixing mechanism (6) includes an electric telescopic cylinder (61), the piston rod of which passes through the support frame (5) and extends to the lower part, and the piston rod of the electric telescopic cylinder (61) is provided with a pressing block (62).

3. The heavy-duty valve plate clamping shaft structure according to claim 2, characterized in that: The lower part of the extrusion block (62) is made of rubber.

4. The heavy-duty valve plate clamping shaft structure according to claim 1, characterized in that: The mounting assembly (3) includes a circular seat (31), which is mounted on the upper center of the support base (2). The circular seat (31) has an annular cavity (34) on its upper part. The bottom wall of the annular cavity (34) is provided with several telescopic springs (32). Each of the several telescopic springs (32) has a telescopic rod (33) on its upper part. The circular seat (31) has a connecting groove (35) that communicates with the annular cavity (34) on its lower part. The circular seat (31) has a connecting pipe (36) for installing an external air pipe at its lower center.

5. The heavy-duty valve plate clamping shaft structure according to claim 4, characterized in that: Several of the telescopic rods (33) pass through the upper part of the round seat (31) and are slidably connected thereto.

6. The heavy-duty valve plate clamping shaft structure according to claim 1, characterized in that: The feeding mechanism (4) includes a support plate (41) symmetrically installed on the upper right side of the base plate (1). The lower part of the two support plates (41) and the upper part of the base plate (1) are respectively provided with a guide rod (42) and a threaded rod (44). The outer surfaces of the guide rod (42) and the threaded rod (44) are provided with connecting sleeves (45). The outer surfaces of the two connecting sleeves (45) are symmetrically provided with concave plates (47) close to each other. The inner cavities of the two connecting sleeves (45) are provided with a feeding plate (48). After the valve plate is placed on the feeding plate (48), the feeding plate (48) transports the valve plate to the support frame (5) through the two concave plates (47).

7. The heavy-duty valve plate clamping shaft structure according to claim 6, characterized in that: The connecting sleeve (45) located at the front slides on the surface of the guide rod (42), and the connecting sleeve (45) located at the rear is threadedly connected to the threaded rod (44).