Anti-loosening clamp

Abstract

The utility model relates to the technical field of clamps, and specifically to an anti-loosening type clamp, comprising: a first clamp, a second clamp, and an anti-loosening mechanism for preventing the first clamp and the second clamp from loosening. In the utility model, the setting of the linkage spring plays a role of preliminary anti-loosening, and the setting of the U-shaped plate plays a role of secondary anti-loosening. The bolts and nuts can be limited by the limiting assembly, which avoids the problem that the bolts and nuts are prone to self-rotation loosening due to the vibration of the gas and liquid in the pipeline during long-term use, causing leakage in the clamp connection structure, and there are safety hazards. It plays a further anti-loosening role, so that the clamp has a triple anti-loosening design, which greatly improves the firmness of the first clamp and the second clamp, so that the first clamp and the second clamp always maintain a stable clamping effect, and improves the safety and practicality of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to an anti-loosening type clamp. Background Art

[0002] The clamp mainly includes a clamp body and a locking bolt. The existing clamp product connection structure requires that the two half clamp bodies be snapped and engaged at the corresponding pipe connection during assembly, whether the product is installed manually or with tools, and then locked with bolts. The clamp connection technology has become the preferred technology for current liquid and gas pipeline connections.

[0003] A Chinese patent with application number CN201620145656.7 discloses a pre-tightening anti-loosening clamp, including a clamp body, the clamp body consisting of two half-clamp bodies, one end of the half-clamp body is positioned and connected by a bolt, the two half-clamp bodies are designed with a handle at the connection end, the handle is designed with a mounting foot, and the mounting foot is sleeved with a spring; a bolt is designed on one half-clamp body at the other end of the two half-clamp bodies, and a bolt clamping groove is correspondingly designed on the other half-clamp body; a rotating handle is designed on the bolt, and an anti-slip groove is designed on the rotating handle, and the contact surface between the clamping groove and the bolt rotating handle is an anti-slip rough surface; the product has a simple structural design, and the product is easy to use and operate, and the connection structure at the clamp connection is not prone to loosening even after long-term use.

[0004] Although the above patent can prevent loosening to a certain extent through the tension of the spring itself and the friction of the rough surface, during long-term use, the locking bolts are prone to loosening due to the vibration of the gas and liquid in the pipeline, causing leakage in the clamp connection structure, posing a safety hazard.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the utility model is to provide an anti-loosening clamp which can effectively solve the above technical problems.

[0007] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0008] A kind of anti-loosening clamp, comprising: a first clamping ring, a second clamping ring, and an anti-loosening mechanism to prevent the first clamping ring and the second clamping ring from loosening; the anti-loosening mechanism comprises: a mounting plate fixedly mounted on the top of the first clamping ring and the second clamping ring, a U-shaped plate sleeved on the top of the mounting plate, bolts installed through the mounting plate and the side walls of the U-shaped plate, nuts threadedly mounted on the outer edges of the bolts, and a limiting assembly arranged on the side walls of the U-shaped plate; the limiting assembly comprises: a fixing plate fixedly mounted on the side walls of the U-shaped plate, a connecting rod installed through the side walls of the fixing plate, a connecting block fixedly mounted on the top end of the connecting rod, a limiting plate fixedly mounted on the bottom end of the connecting rod, and a limiting spring fixedly mounted between the limiting plate and the fixing plate.

[0009] Furthermore, the outer shape of the limiting plate is C-shaped, and the inner wall structure of the limiting plate matches the outer edges of the bolts and nuts.

[0010] Furthermore, the inner wall of the U-shaped plate and the side wall of the mounting plate are arranged to fit each other.

[0011] Furthermore, the bottoms of the first clamping ring and the second clamping ring are both fixedly connected with connecting plates, and the adjacent sides of the two connecting plates are jointly fixedly mounted with a linkage spring.

[0012] Furthermore, the bottoms of the first clamping ring and the second clamping ring are hinged to each other, and rubber pads are fixedly installed on the inner walls of the first clamping ring and the second clamping ring.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses an anti-loosening clamp, which plays a preliminary anti-loosening role by arranging a linkage spring, and plays a secondary anti-loosening role by arranging a U-shaped plate. The bolt and the nut can be limited by a limiting component, thereby preventing the bolt and the nut from self-rotationally loosening due to the vibration of the gas and liquid in the pipeline during long-term use, causing leakage in the clamp connection structure and posing a complete safety hazard. The utility model plays a further anti-loosening role, so that the clamp has a triple anti-loosening design, which greatly improves the firmness of the first clamp ring and the second clamp ring, so that the first clamp ring and the second clamp ring always maintain a stable clamping effect, thereby improving the safety and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1It is a three-dimensional schematic diagram of an anti-loosening clamp of the utility model.

[0017] Figure 2 It is a three-dimensional schematic diagram of an anti-loosening clamp of the utility model.

[0018] Figure 3 It is a front view of an anti-loosening clamp of the utility model.

[0019] Figure 4 The utility model is a kind of anti-loosening type clamp Figure 1 Enlarged view of point A in the middle.

[0020] In the figure: 1. first retaining ring; 2. second retaining ring; 3. rubber pad; 4. connecting plate; 5. linkage spring; 6. mounting plate; 7. U-shaped plate; 8. bolt; 9. nut; 10. fixing plate; 11. linkage rod; 12. linkage block; 13. limit plate; 14. limit spring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the utility model, rather than all embodiments.

[0022] In the description of the present utility model, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] like Figures 1 to 4 As shown, the utility model is an anti-loosening type clamp, comprising: a first clamp ring 1, a second clamp ring 2, and an anti-loosening mechanism for preventing the first clamp ring 1 and the second clamp ring 2 from loosening;

[0024] The anti-loosening mechanism includes: a mounting plate 6 fixedly mounted on the top of the first snap ring 1 and the second snap ring 2, a U-shaped plate 7 sleeved on the top of the mounting plate 6, a bolt 8 installed through the mounting plate 6 and the side wall of the U-shaped plate 7, a nut 9 threadedly mounted on the outer edge of the bolt 8, and a limiting component arranged on the side wall of the U-shaped plate 7, the limiting component includes: a fixing plate 10 fixedly mounted on the side wall of the U-shaped plate 7, a linkage rod 11 installed through the side wall of the fixing plate 10, a linkage block 12 fixedly mounted on the top of the linkage rod 11, a limiting plate 13 fixedly mounted on the bottom end of the linkage rod 11, and a limiting spring 14 fixedly mounted between the limiting plate 13 and the fixing plate 10, the limiting plate 13 has a C-shaped shape, and the inner wall structure of the limiting plate 13 matches the outer edges of the bolts 8 and the nuts 9, and the inner wall of the U-shaped plate 7 and the side wall of the mounting plate 6 are arranged to fit each other;

[0025] After the first clamping ring 1 and the second clamping ring 2 are clamped on the outer edge of the pipe, the U-shaped plate 7 is sleeved on the mounting plate 6, and the mounting holes on the mounting plate 6 and the U-shaped plate 7 are aligned. The setting of the U-shaped plate 7 can limit the two mounting plates 6, prevent the two mounting plates 6 from moving to both sides when vibrated, and further prevent the first clamping ring 1 and the second clamping ring 2 from moving to both sides when vibrated, thereby avoiding the first clamping ring 1 and the second clamping ring 2 from loosening, and playing a secondary anti-loosening role when clamping;

[0026] After the U-shaped plate 7 is sleeved on the outer edges of the two mounting plates 6, the two linkage blocks 12 are pulled upward, and the adjacent linkage rods 11 are driven upward by the linkage blocks 12, and the adjacent limit plates 13 are driven upward by the linkage rods 11, and the adjacent limit springs 14 are compressed. At this time, one end of the bolt 8 is passed through the mounting holes on the mounting plate 6 and the side walls of the U-shaped plate 7, and the nut 9 is threadedly installed on the outer edge of the bolt 8. The first clamping ring 1 and the second clamping ring 2 can be fixed by the mutual cooperation of the bolt 8 and the nut 9. When the nut 9 is tightened, one side of the nut 9 and the U-shaped plate 7 are fitted together, and the position of the bolt 8 and the nut 9 after tightening is aligned with the adjacent The limiting plates 13 correspond to the limiting plates 13. At this time, by loosening the two linkage blocks 12, the elastic force of the limiting springs 14 can drive the adjacent limiting plates 13 to move downward, so that the two limiting plates 13 are engaged with the outer edges of the bolts 8 and the nuts 9. Since the outer edges of the bolts 8 and the nuts 9 match the shapes of the inner walls of the limiting plates 13, the bolts 8 and the nuts 9 can be limited, which avoids the bolts 8 and the nuts 9 from self-rotation loosening due to the vibration of the gas and liquid in the pipeline during long-term use, causing leakage in the clamp connection structure, and the complete problem of potential safety hazards. The first clamp ring 1 and the second clamp ring 2 have a further anti-loosening effect.

[0027] Thus, the clamp has a triple anti-loosening design, which greatly improves the firmness of the clamps of the first clamp ring 1 and the second clamp ring 2, so that the first clamp ring 1 and the second clamp ring 2 always maintain a stable clamping effect, thereby improving the safety and practicality of the device.

[0028] The first clamping ring 1 and the second clamping ring 2 are both fixedly connected with a connecting plate 4 at their bottoms, and a linkage spring 5 is fixedly installed on one side of the two connecting plates 4 that are close to each other;

[0029] The two connecting plates 4 are pressed inwardly so that the two connecting plates 4 are close to each other, thereby driving the linkage spring 5 to be compressed. At this time, the two connecting plates 4 are close to each other, so that the first clamping ring 1 and the second clamping ring 2 can be opened to both sides. At this time, the first clamping ring 1 and the second clamping ring 2 can be sleeved on the outer edge of the pipe. After being sleeved on the outer edge of the pipe, by loosening the connecting plates 4, the elastic force of the linkage spring 5 can drive the connecting plates 4 to move to both sides, thereby driving the first clamping ring 1 and the second clamping ring 2 to be clamped on the outer edge of the pipe. The elastic force of the linkage spring 5 can pre-tighten the first clamping ring 1 and the second clamping ring 2, so that the first clamping ring 1 and the second clamping ring 2 have a certain clamping force, so that the first clamping ring 1 and the second clamping ring 2 are clamped on the outside of the pipe, which plays a preliminary anti-loosening effect when the clamp is used.

[0030] The first clamping ring 1 and the second clamping ring 2 are hinged to each other at the bottom, and rubber pads 3 are fixedly installed on the inner walls of the first clamping ring 1 and the second clamping ring 2;

[0031] The bottoms of the first clamping ring 1 and the second clamping ring 2 are designed to be hinged. Compared with the separate existence of the traditional first clamping ring 1 and the second clamping ring 2, the integrity is high, and there is no need to find them separately during installation, which saves installation time;

[0032] By setting the rubber pad 3, the clamp can be sealed, and the friction between the first clamp ring 1, the second clamp ring 2 and the pipeline can be increased, thereby improving the firmness of the first clamp ring 1 and the second clamp ring 2 clamps on the outside of the pipeline. At the same time, it can avoid the first clamp ring 1 and the second clamp ring 2 from contacting with the outside of the pipeline, causing wear on the outside of the pipeline and affecting the normal use of the pipeline, thereby playing a role in protecting the pipeline.

[0033] Working principle: when in use, first press the two connecting plates 4 inwardly so that the two connecting plates 4 are close to each other, thereby driving the linkage spring 5 to compress. At this time, the two connecting plates 4 are close to each other, which can drive the first clamping ring 1 and the second clamping ring 2 to open to both sides. At this time, the first clamping ring 1 and the second clamping ring 2 can be sleeved on the outer edge of the pipe. After sleeved on the outer edge of the pipe, by loosening the connecting plate 4, the elastic force of the linkage spring 5 can drive the connecting plate 4 to move to both sides, thereby driving the first clamping ring 1 and the second clamping ring 2 to engage with the outer edge of the pipe. The elastic force of the linkage spring 5 can pre-tighten the first clamping ring 1 and the second clamping ring 2, so that the first clamping ring 1 and the second clamping ring 2 have a certain clamping force, thereby The first clamping ring 1 and the second clamping ring 2 are clamped on the outside of the pipe, which plays a preliminary anti-loosening effect when the clamp is used. After the first clamping ring 1 and the second clamping ring 2 are clamped on the outer edge of the pipe, the U-shaped plate 7 is sleeved on the mounting plate 6, and the mounting holes on the mounting plate 6 and the U-shaped plate 7 are aligned. Through the setting of the U-shaped plate 7, the two mounting plates 6 can be limited to prevent the two mounting plates 6 from moving to both sides when they are vibrated, thereby preventing the first clamping ring 1 and the second clamping ring 2 from moving to both sides when they are vibrated, avoiding the first clamping ring 1 and the second clamping ring 2 from loosening, and playing a secondary anti-loosening effect when the clamp is used. After the U-shaped plate 7 is sleeved on the outer edges of the two mounting plates 6, the two linkage blocks 12 are pulled upwards. The linkage block 12 drives the adjacent linkage rod 11 to move upward, and drives the adjacent limit plate 13 to move upward through the linkage rod 11, and drives the adjacent limit spring 14 to be compressed. At this time, one end of the bolt 8 is passed through the mounting holes on the mounting plate 6 and the side wall of the U-shaped plate 7, and the nut 9 is threadedly installed on the outer edge of the bolt 8. The first clamping ring 1 and the second clamping ring 2 can be fixed by the mutual cooperation of the bolt 8 and the nut 9. When the nut 9 is tightened, one side of the nut 9 and the U-shaped plate 7 are arranged to fit each other, and the position of the bolt 8 and the nut 9 after tightening corresponds to the adjacent limit plate 13. At this time, by loosening the two linkage blocks 12, the adjacent limit plates 13 can be driven to move downward through the elastic force of the limit spring 14, so that the two The limiting plate 13 is engaged with the outer edge of the bolt 8 and the nut 9. Since the outer edge of the bolt 8 and the nut 9 matches the shape of the inner wall of the limiting plate 13, the bolt 8 and the nut 9 can be limited, which prevents the bolt 8 and the nut 9 from loosening due to the vibration of the gas and liquid in the pipeline during long-term use, causing leakage in the clamp connection structure and posing a complete safety hazard. It further prevents the first clamp ring 1 and the second clamp ring 2 from loosening, so that the clamp has a triple anti-loosening design, which greatly improves the firmness of the clamps of the first clamp ring 1 and the second clamp ring 2, so that the first clamp ring 1 and the second clamp ring 2 always maintain a stable clamping effect, thereby improving the safety and practicality of the device.

[0034] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0035] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A loose-proof clamp, characterized in that: include: A first clamping ring, a second clamping ring, and an anti-loosening mechanism for preventing the first clamping ring and the second clamping ring from loosening; The anti-loosening mechanism comprises: a mounting plate fixedly mounted on the top of the first clamping ring and the second clamping ring, a U-shaped plate sleeved on the top of the mounting plate, bolts installed on the mounting plate and the side wall of the U-shaped plate, nuts threadedly mounted on the outer edge of the bolts, and a limit assembly arranged on the side wall of the U-shaped plate; The limit assembly includes: a fixing plate fixedly installed on the side wall of the U-shaped plate, a connecting rod installed through the side wall of the fixing plate, a connecting block fixedly installed on the top end of the connecting rod, a limit plate fixedly installed on the bottom end of the connecting rod, and a limit spring fixedly installed between the limit plate and the fixing plate.

2. The anti-loosening clamp according to claim 1, characterized in that: The outer shape of the limiting plate is C-shaped, and the inner wall structure of the limiting plate matches the outer edges of the bolts and nuts.

3. The anti-loosening clamp according to claim 1, characterized in that: The inner wall of the U-shaped plate and the side wall of the mounting plate are arranged to fit each other.

4. The anti-loosening clamp according to claim 1, characterized in that: The bottoms of the first clamping ring and the second clamping ring are both fixedly connected with connecting plates, and the adjacent sides of the two connecting plates are commonly fixedly installed with a linkage spring.

5. The anti-loosening clamp according to claim 1, characterized in that: The bottoms of the first clamping ring and the second clamping ring are hinged to each other, and rubber pads are fixedly installed on the inner walls of the first clamping ring and the second clamping ring.

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