Stopper rod limiting device

By combining a sliding ring and a clamping structure, the problem of adjusting the limit position of the stopper rod limiting device under different environments is solved, enabling flexible adjustment and accurate positioning of the stopper rod, improving equipment adaptability, and avoiding wear and malfunctions.

CN223889843UActive Publication Date: 2026-02-10SHANDONG PROVINCE ZICHUAN SPECIAL REFRACTORY MATERIAL FACTORY
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Patent Information

Application Number
CN202520570796.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-02-10
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

Existing stopper rod limiting devices are difficult to adjust the limiting position flexibly under different working environments and load conditions, which leads to the stopper rod running over the limit, causing wear or failure.

Method used

A stopper rod limiting device was designed. Through the combination of a sliding ring and a clamping structure, the position of the stopper rod can be flexibly adjusted and fixed. The sliding ring slides in the groove to change the position of the moving ring, and the rotating circular frame drives the gear rack to clamp the stopper rod, ensuring accurate positioning.

Benefits of technology

This allows for adjustment of the stopper's range of motion in different operating conditions, improving equipment adaptability, preventing positional deviation, and ensuring accurate positioning and fixation of the stopper during operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stopper limiting device, and relates to the technical field of stopper limiting, the stopper limiting device comprises a stopper, a limiting structure is arranged on the outer surface of the stopper, a clamping structure is arranged on the outer surface of the stopper, and the limiting structure comprises a clamping plate. A sliding rod slides in a connecting box, meanwhile, a clamping plate extrudes a spring, the spring can continuously rebound to clamp a stopper rod, then a sliding ring is pushed in the opposite direction of a rotating round frame, the sliding ring slides in a first sliding groove at the moment, and then the sliding ring drives a moving plate to push a moving ring; and through the sliding ring capable of sliding in the first sliding groove, the effects that the position of the moving ring on the stopper rod can be changed, so that the limiting position of the stopper rod is adjusted, the movement range of the stopper rod can be adjusted according to needs in different operation occasions, and the adaptability of equipment is improved are achieved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of stopper limiting, especially relates to stopper limiting device. BACKGROUND

[0002] The stopper limiting device is a safety protection device used in mechanical equipment, which is usually used to control the position and movement range of the moving part, and its function is to limit or guide the position of the stopper, ensure the correct operation of the equipment, avoid exceeding the predetermined movement range or position, and prevent damage or unsafe operation.

[0003] The stopper usually needs to be used in different working environments, process requirements or load conditions, so the different use cases need to adjust the limiting position of the stopper, so as to avoid overrunning of the stopper and avoid wear or failure caused by excessive movement, therefore, the stopper limiting device is provided. UTILITY MODEL CONTENTS

[0004] The utility model discloses a purpose at providing stopper limiting device, through the sliding ring that can slide in the sliding groove one, make the sliding ring can move the moving ring through the moving plate, solved the problem of different position limiting of stopper.

[0005] In order to solve the above technical problems, the utility model is realized through the following technical schemes:

[0006] The utility model discloses a stopper limiting device, including the stopper, the outer surface of stopper is provided with the limiting structure, the outer surface of stopper is provided with the clamping structure,

[0007] The limiting structure includes the clamping plate, the side away from the stopper of clamping plate is fixedly connected with the slide rod, the outer surface of slide rod is slidably connected with the support cylinder, the outer surface of support cylinder is slidably connected with the moving ring, the outer surface of moving ring is fixedly connected with the connecting box, the side away from the stopper of clamping plate is fixedly connected with the spring, the inside of support cylinder is provided with the sliding groove one, the inner wall of sliding groove one is slidably connected with the sliding ring, the inner wall of sliding ring is fixedly connected with the moving plate, the inner wall of moving plate is threadedly connected with bolt one, through the sliding ring that can slide in the sliding groove one, reach the position of moving ring on stopper can be changed, thereby the limiting position of stopper is adjusted, in different operation occasions, the movement range of stopper can be adjusted according to the needs, thereby the effect of improving the adaptability of equipment is improved.

[0008] Further, the clamping plate is provided with two, the outer surface of clamping plate is slidably connected with the outer surface of stopper, the connecting box is provided with two, the inner wall of connecting box is slidably connected with the outer surface of slide rod, the spring is provided with two.

[0009] Furthermore, the end of the spring away from the stopper rod is fixedly connected to the inner wall of the connecting box, the inner side of the spring is sleeved with the outer surface of the slide rod, there are two slide grooves, there are two moving plates, and the outer surface of the bolt contacts the inner wall of the slide groove.

[0010] Furthermore, the clamping structure includes a rotating circular frame rotatably connected to the outer surface of the support cylinder, and a connecting circular frame is fixedly connected to the side of the rotating circular frame away from the sliding ring.

[0011] Furthermore, a fixing plate is rotatably connected to the inner wall of the connecting circular frame, the inner wall of the fixing plate is fixedly connected to the outer surface of the support cylinder, and two bolts are threadedly connected to the inner wall of the connecting circular frame.

[0012] Furthermore, the outer surface of the second bolt contacts the outer surface of the fixing plate, and the fixing plate has a circular groove inside. There are two circular grooves in total, and a rotating shaft is rotatably connected to the inner wall of the circular groove.

[0013] Furthermore, a gear is fixedly connected to the outer surface of the rotating shaft, a rack meshes with the outer surface of the gear, a clamping block is fixedly connected to the side of the rack away from the gear, and a toothed ring is fixedly connected to the inner wall of the rotating circular frame.

[0014] Furthermore, the outer surface of the gear ring meshes with the outer surface of the gear, and the support cylinder has a second sliding groove inside. There are two sliding grooves in total. The inner wall of the second sliding groove is slidably connected to the outer surface of the clamping block. By rotating the circular frame, the clamping block can slide in the second sliding groove, which can clamp and fix the stopper rod, ensuring that it maintains accurate positioning and fixed state during operation, and avoiding the displacement of the stopper rod position due to vibration, external force or workpiece changes.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model incorporates a sliding ring. The clamping plate pushes the sliding rod, causing it to slide within the connecting box. Simultaneously, the clamping plate compresses the spring, ensuring its continuous rebound to clamp the stopper rod. The sliding ring is then pushed in the opposite direction of the rotating frame, causing it to slide within the first sliding groove. This sliding ring then drives the moving plate to push the moving ring. By allowing the sliding ring to slide within the first sliding groove, the position of the moving ring on the stopper rod can be changed, thereby adjusting the stopper rod's limiting position. In different operating situations, the movement range of the stopper rod can be adjusted as needed, thus improving the equipment's adaptability.

[0017] 2, the utility model discloses a rotating round frame is set to rotate the rotating round frame, the rotating round frame will drive the connecting round frame to rotate on the fixed plate, then the fixed plate will drive the gear to rotate, after the rotation of the gear will make the rack do the movement of mutual approach, thereby make the rack drive the clamping block do the movement of mutual approach, the transmission of the rotating round frame makes the clamping block can slide in the sliding slot two, reached can the plug rod is clamped and fixed, can ensure that it keeps accurate positioning and fixed state in the working process, avoid the effect that the plug rod position is deviated due to vibration, external force or workpiece change.

[0018] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0020] Figure 1 It is the whole structure schematic diagram of the utility model;

[0021] Figure 2 It is the limiting mechanism structure schematic diagram of the utility model;

[0022] Figure 3 It is the spring structure schematic diagram of the utility model;

[0023] Figure 4 It is the clamping mechanism structure schematic diagram of the utility model;

[0024] Figure 5 It is the gear structure schematic diagram of the utility model.

[0025] In the drawing, the component list represented by each sign is as follows:

[0026] 101, plug rod;2, limiting structure;201, clamping plate;202, sliding rod;203, support cylinder;204, moving ring;205, connecting box;206, spring;207, sliding slot one;208, sliding ring;209, moving plate;210, bolt one;3, clamping structure;301, rotating round frame;302, connecting round frame;303, fixed plate;304, rotating shaft;305, gear;306, rack;307, clamping block;308, gear ring;309, bolt two;310, round groove;311, sliding slot two. DETAILED DESCRIPTION

[0027] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] Please refer to Figures 1-5 The utility model discloses a plug rod limiting device, including plug rod 101, the outer surface of plug rod 101 is provided with limiting structure 2, the outer surface of plug rod 101 is provided with clamping structure 3, limiting structure 2 includes clamping plate 201, the side away from plug rod 101 of clamping plate 201 is fixedly connected with slide 202, through clamping plate 201 to slide 202 connection, then clamping plate 201 drives slide 202 to move, the outer surface of slide 202 is connected with support cylinder 203 slidingly, the outer surface of support cylinder 203 is connected with moving ring 204 slidingly, the outer surface of moving ring 204 is fixedly connected with connecting box 205, the side away from plug rod 101 of clamping plate 201 is fixedly connected with spring 206, through clamping plate 201 to spring 206 connection, then the movement of clamping plate 201 will extrude spring 206, the inside of support cylinder 203 is provided with sliding slot one 207, the inner wall of sliding slot one 207 is connected with sliding ring 208 slidingly, the inner wall of sliding ring 208 is fixedly connected with moving plate 209, the inner wall of moving plate 209 is connected with bolt one 210 threadedly, through sliding slot one 207 to sliding ring 208 connection, then sliding ring 208 can slide in sliding slot one 207, clamping plate 201 is provided with two, the outer surface of clamping plate 201 is connected with the outer surface of plug rod 101 slidingly, connecting box 205 is provided with two, the inner wall of connecting box 205 is connected with the outer surface of slide 202 slidingly, through connecting box 205 to slide 202 connection, then slide 202 can slide in connecting box 205, spring 206 is provided with two, the end away from plug rod 101 of spring 206 is fixedly connected with the inner wall of connecting box 205, the inner side of spring 206 is connected with the outer surface of slide 202, sliding slot one 207 is provided with two, moving plate 209 is provided with two, the outer surface of bolt one 210 is contacted with the inner wall of sliding slot one 207, through spring 206 to slide 202 connection, then the movement track of spring 206 is limited by slide 202.

[0029] The clamping structure 3 comprises a rotating circular frame 301 rotatably connected to the outer surface of the supporting cylinder 203, the side, away from the sliding ring 208, of the rotating circular frame 301 is fixedly connected with a connecting circular frame 302, the inner wall of the connecting circular frame 302 is rotatably connected with a fixed plate 303, the inner wall of the fixed plate 303 is fixedly connected with the outer surface of the supporting cylinder 203, the fixed plate 303 is connected through the connecting circular frame 302, then the connecting circular frame 302 can rotate on the fixed plate 303, the inner wall of the connecting circular frame 302 is screw-connected with a bolt two 309, the outer surface of the bolt two 309 is in contact with the outer surface of the fixed plate 303, the fixed plate 303 is internally provided with a circular groove 310, the circular groove 310 is provided with two in total, the inner wall of the circular groove 310 is rotatably connected with a rotating shaft 304, the rotating shaft 304 is connected through the circular groove 310, then the rotating shaft 304 can rotate in the circular groove 310.

[0030] The outer surface of the rotating shaft 304 is fixedly connected with a gear 305, the outer surface of the gear 305 is engaged with a rack 306, the side, away from the gear 305, of the rack 306 is fixedly connected with a clamping block 307, the inner wall of the rotating circular frame 301 is fixedly connected with a tooth ring 308, the rack 306 is connected through the gear 305, then the rotation of the gear 305 will make the rack 306 move, the outer surface of the tooth ring 308 is engaged with the outer surface of the gear 305, the supporting cylinder 203 is internally provided with a sliding groove two 311, the sliding groove two 311 is provided with two in total, the inner wall of the sliding groove two 311 is slidably connected with the outer surface of the clamping block 307, the clamping block 307 is connected through the sliding groove two 311, then the clamping block 307 can slide in the sliding groove two 311.

[0031] One specific application of the embodiment is:

[0032] When the operator needs to use the equipment, the stopper rod 101 can be passed through the support cylinder 203, and then the rotating frame 301 can be rotated. At this time, the rotating frame 301 will drive the connecting frame 302 to rotate on the fixed plate 303. The fixed plate 303 will then drive the gear 305 to rotate. The rotation of the gear 305 will cause the rack 306 to move closer together, thereby causing the rack 306 to drive the clamping blocks 307 to move closer together, clamping the stopper rod 101. Then, the bolt 309 is tightened inside the connecting frame 302 to fix its position. This achieves the goal of clamping and fixing the stopper rod 101, ensuring accurate positioning and fixation during operation, and preventing displacement of the stopper rod due to vibration, external force, or workpiece changes. While the stopper rod 101 moves within the support cylinder 203, it also pushes the clamping plate 201. The clamping plate 201 pushes the slide rod 202, causing it to slide within the connecting box 205. Simultaneously, the clamping plate 201 compresses the spring 206, ensuring its continuous rebound to clamp the stopper rod 101. Then, the sliding ring 208 is pushed in the opposite direction to the rotating frame 301, causing it to slide within the first slide groove 207. The sliding ring 208 then drives the moving plate 209 to push the moving ring 204, thereby changing its position on the stopper rod 101. When the moving ring 204 is in the correct position, the bolt 210 is tightened within the moving plate 209 to fix its position. This allows the position of the moving ring 204 on the stopper rod 101 to be adjusted, thus regulating the stopper rod 101's limit position. In different operating situations, the movement range of the stopper rod 101 can be adjusted as needed, improving the equipment's adaptability.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A stopper rod limiting device, comprising a stopper rod (101), characterized in that: The outer surface of the stopper rod (101) is provided with a limiting structure (2), and the outer surface of the stopper rod (101) is provided with a clamping structure (3). The limiting structure (2) includes a clamping plate (201), a sliding rod (202) is fixedly connected to the side of the clamping plate (201) away from the stopper rod (101), a support cylinder (203) is slidably connected to the outer surface of the sliding rod (202), a moving ring (204) is slidably connected to the outer surface of the support cylinder (203), a connecting box (205) is fixedly connected to the outer surface of the moving ring (204), a spring (206) is fixedly connected to the side of the clamping plate (201) away from the stopper rod (101), a sliding groove (207) is provided inside the support cylinder (203), a sliding ring (208) is slidably connected to the inner wall of the sliding groove (207), a moving plate (209) is fixedly connected to the inner wall of the sliding ring (208), and a bolt (210) is threadedly connected to the inner wall of the moving plate (209).

2. The stopper rod limiting device according to claim 1, characterized in that, Two clamping plates (201) are provided in total. The outer surface of the clamping plate (201) is slidably connected to the outer surface of the stopper rod (101). Two connecting boxes (205) are provided in total. The inner wall of the connecting box (205) is slidably connected to the outer surface of the slide rod (202). Two springs (206) are provided in total.

3. The stopper rod limiting device according to claim 1, characterized in that, The end of the spring (206) away from the stopper (101) is fixedly connected to the inner wall of the connecting box (205). The inner side of the spring (206) is sleeved with the outer surface of the slide rod (202). There are two slide grooves (207) and two moving plates (209). The outer surface of the bolt (210) is in contact with the inner wall of the slide groove (207).

4. The stopper rod limiting device according to claim 1, characterized in that, The clamping structure (3) includes a rotating circular frame (301) rotatably connected to the outer surface of the support cylinder (203), and a connecting circular frame (302) is fixedly connected to the side of the rotating circular frame (301) away from the sliding ring (208).

5. The stopper rod limiting device according to claim 4, characterized in that, The inner wall of the connecting circular frame (302) is rotatably connected to a fixing plate (303), the inner wall of the fixing plate (303) is fixedly connected to the outer surface of the support cylinder (203), and the inner wall of the connecting circular frame (302) is threadedly connected to a bolt (309).

6. The stopper rod limiting device according to claim 5, characterized in that, The outer surface of the second bolt (309) is in contact with the outer surface of the fixing plate (303). The fixing plate (303) has a circular groove (310) inside. There are two circular grooves (310). The inner wall of the circular groove (310) is rotatably connected to a rotating shaft (304).

7. The stopper rod limiting device according to claim 6, characterized in that, A gear (305) is fixedly connected to the outer surface of the rotating shaft (304), a rack (306) meshes with the outer surface of the gear (305), a clamping block (307) is fixedly connected to the side of the rack (306) away from the gear (305), and a toothed ring (308) is fixedly connected to the inner wall of the rotating circular frame (301).

8. The stopper rod limiting device according to claim 7, characterized in that, The outer surface of the gear ring (308) meshes with the outer surface of the gear (305). The support cylinder (203) has a second sliding groove (311) inside. There are two sliding grooves (311). The inner wall of the second sliding groove (311) is slidably connected to the outer surface of the clamping block (307).