A two-stage thread protector carrier

By designing a positioning mechanism, bracket assembly, and limiting mechanism in coordination, the compatibility and shock absorption problems of traditional brackets are solved, enabling stable transportation and efficient adaptation of thread protectors, and improving the versatility and safety of the brackets.

CN224492142UActive Publication Date: 2026-07-14ZHEJIANG TIANYI MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG TIANYI MACHINERY CO LTD
Filing Date
2025-07-23
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional two-section brackets are difficult to quickly adapt to thread protectors of different lengths and specifications, and lack effective shock absorption and cushioning measures, resulting in severe wear of the thread protectors during transportation and storage, which affects the protective effect.

Method used

A two-stage thread protector bracket was designed, which uses a combination of positioning mechanism, bracket assembly and limiting mechanism. Vibration is absorbed by spring shock absorber, slide rail and arc-shaped clamping plate achieve self-adaptive clamping, positioning pin and rubber pad provide precise fixation, and slide rod and threaded rod adjust height to ensure stability and adaptability.

Benefits of technology

It improves the versatility and stability of the bracket, reduces wear on the thread protector, enhances safety and stability during transportation, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a two -segment type thread protector bracket relates to thread protector technical field, the utility model discloses a mounting disc, the both sides of mounting disc top are all fixedly connected with positioning mechanism, the top fixedly connected with bracket assembly of mounting disc, the bottom fixedly connected with limiting mechanism of bracket assembly, the bracket assembly includes spring shock absorber, the utility model discloses a spring shock absorber connection mounting disc and fixed bracket can effectively absorb the vibration of operation site and the impact force of equipment operation produces, provides stable placing environment for thread protector, reduces the collision damage of vibration, and the cooperation of fixed bracket and movable bracket is realized height adjustment through screw rod and thread bushing, and the thread bushing is moved on screw rod by rotating the handle, and then the height of movable bracket is adjusted, and the thread protector of different length is conveniently and quickly adapted, and the versatility of bracket is greatly improved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of thread protectors, and in particular relates to a two-stage thread protector bracket. Background Technology

[0002] In the oil and gas extraction process, drill pipes, casings and other pipe fittings are core equipment. The quality of the threads at their connection points directly affects the safety and stability of drilling operations. Thread protectors play a crucial role in preventing thread damage and corrosion during pipe fitting transportation, storage and loading and unloading. Thread protector brackets are important carriers that ensure the orderly storage and efficient transfer of thread protectors.

[0003] The two-stage adjustment structure of traditional two-stage brackets is complicated to operate and difficult to quickly adapt to thread protectors of different lengths and specifications, resulting in low efficiency when frequently changing work scenarios. At the same time, traditional brackets lack effective shock absorption and cushioning measures. The complex road conditions of the work site and the vibration generated by the operation of the equipment can cause the thread protector to collide inside the bracket, resulting in surface wear or even damage to the internal structure, thereby weakening the protection effect on the pipe thread.

[0004] To address these issues, we provide a two-stage thread protector bracket. Utility Model Content

[0005] The purpose of this utility model is to provide a two-stage thread protector bracket. Through the cooperation of the positioning mechanism, bracket assembly and limiting mechanism, it solves the problems of existing two-stage brackets being difficult to quickly adapt to thread protectors of different lengths and lacking effective shock absorption and buffering measures.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a two-stage thread protector bracket, comprising a mounting plate. Positioning mechanisms are fixedly connected to both sides of the top of the mounting plate. A bracket assembly is fixedly connected to the top of the mounting plate, and a limiting mechanism is fixedly connected to the bottom of the bracket assembly. The bracket assembly includes a spring damper, the bottom of which is fixedly connected to the mounting plate. A fixed bracket is fixedly connected to the top of the spring damper. A threaded rod is movably connected to one side of the top of the fixed bracket via a bearing. A threaded sleeve is threadedly connected to the surface of the threaded rod. A movable bracket is fixedly connected to the top of the threaded sleeve. Limiting grooves are formed on the top of both the movable bracket and the fixed bracket. A protective ring is fixedly connected to one side of the inner cavity of the limiting groove. The fixed bracket adopts a disc frame structure, and one side of its bottom is movably connected to the threaded rod via a bearing. The inner ring of the bearing tightly fits the threaded rod, ensuring flexible and stable rotation of the threaded rod. The movable bracket also features a disc-frame structure with a circular limiting groove at the top. The protective ring is made of soft silicone, offering excellent flexibility and aging resistance. The movable bracket has through holes that mate with the sliding rod, allowing for a smooth connection between the rod and the bracket. Spring shock absorbers effectively absorb vibrations from the work area and impacts from equipment operation, providing a stable environment for the thread protector. The frame structure of both the fixed and movable brackets ensures the bracket's load-bearing capacity. Operators can adjust the height of the movable bracket by turning a handle, quickly adapting it to thread protectors of different lengths, improving the bracket's versatility. The sliding rod provides stable guidance for the movable bracket's lifting and lowering. The additional support from the mounting bracket for the threaded rod enhances structural stability. The design of the limiting groove and protective ring effectively prevents direct contact and wear between the thread protector and the bracket, further strengthening the protection of the thread protector.

[0008] The present invention is further configured such that the limiting mechanism includes a connecting column, which is disposed on both sides of the bottom of the fixed bracket and both sides of the bottom of the movable bracket. A connecting block is fixedly connected to the bottom of the connecting column, and a slide rail is slidably connected to the inner cavity of the connecting block. An arc-shaped clamping plate is fixedly connected to one side of the slide rail, and a spring is fixedly connected to the other side of the slide rail. One side of the spring is fixedly connected to the connecting block. The connecting column provides a stable installation foundation for the entire limiting mechanism. The sliding connection between the connecting block and the slide rail allows the arc-shaped clamping plate to move flexibly. When the thread protector is placed on the bracket assembly, the elastic force of the spring pushes the slide rail and the arc-shaped clamping plate connected thereto to slide along the inner cavity of the connecting block until the arc-shaped clamping plate tightly fits the outer surface of the thread protector. This not only adapts to thread protectors of different shapes and sizes and achieves self-adaptive clamping, but also effectively buffers external impact forces during transportation, preventing the thread protector from shifting or shaking, and greatly improving the safety and stability of the thread protector placed on the bracket.

[0009] The present invention is further configured such that the positioning mechanism includes a connecting plate, the bottom of the connecting plate is fixedly connected to the mounting plate, the surface of the connecting plate is threaded with a positioning pin, and a rubber pad is fixedly connected to one side of the positioning pin. The positioning pin is connected to the connecting plate by threads, so that the operator can easily adjust the extension and retraction of the positioning pin. The rubber pad on one side of the positioning pin is a key component for achieving accurate positioning and firm fixation. The rubber pad has good elasticity and friction. When the positioning pin is rotated to extend it, the rubber pad can tightly fit the mounting plane and use friction to firmly fix the bracket in the designated position.

[0010] The present invention is further configured such that a handwheel is fixedly connected to the surface of the positioning pin, and the surface of the handwheel is provided with a first anti-slip texture. The handwheel increases the area on which the operator applies force, which is more labor-saving and easier to control the rotation angle and force compared to directly rotating the positioning pin.

[0011] The present invention is further configured such that a slide rod is fixedly connected to one side of the top of the fixed bracket, and the surface of the slide rod is movably connected to the movable bracket. The slide rod and the movable bracket are movably connected, providing stable guidance and support for the lifting and lowering of the movable bracket. When the height of the movable bracket is adjusted by the threaded rod and the threaded sleeve, the slide rod can limit the movement direction of the movable bracket, prevent it from deviating or shaking during the lifting and lowering process, and ensure that the movable bracket moves smoothly along the vertical direction.

[0012] The present invention is further configured such that a mounting bracket is fixedly connected to the top of the slide rod, and one side of the bottom of the mounting bracket is movably connected to the threaded rod through a bearing. When the height of the movable bracket is adjusted by rotating the threaded rod, the mounting bracket can effectively share the radial and axial forces borne by the threaded rod, reduce the deformation and shaking of the threaded rod, and make the rotation of the threaded rod more stable.

[0013] The present invention is further provided that a handle is fixedly connected to both sides of the threaded sleeve, and the surface of the handle is provided with a second anti-slip texture. The handle provides the operator with a gripping part that is easy to apply force. Compared with directly rotating the threaded sleeve, it is more ergonomic and makes the adjustment operation easier.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model connects the mounting plate and the fixed bracket with a spring shock absorber, which can effectively absorb the vibration of the work site and the impact force generated by the operation of the equipment, providing a stable placement environment for the thread protector and reducing collision damage caused by vibration. The fixed bracket and the movable bracket can be adjusted in height through the cooperation of the threaded rod and the threaded sleeve. Turning the handle drives the threaded sleeve to move on the threaded rod, thereby adjusting the height of the movable bracket, which can easily and quickly adapt to thread protectors of different lengths, greatly improving the versatility of the bracket.

[0016] 2. In this utility model, when the thread protector is placed on the bracket assembly, the spring pushes the arc-shaped clamping plate to slide along the slide rail, closely fitting the thread protector to achieve stable positioning and prevent displacement or shaking during transportation. The connecting plate, positioning pin, and rubber pad work together, and the positioning pin is moved by rotating the handwheel, so that the rubber pad is closely fitted to the installation plane, achieving accurate positioning and firm fixation of the bracket, facilitating loading and unloading operations, and improving work efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a perspective view of a two-stage thread protector bracket.

[0019] Figure 2 This is a bottom-view perspective view of a two-section thread protector bracket.

[0020] Figure 3 This is a perspective view of a limiting mechanism in a two-stage thread protector bracket.

[0021] Figure 4 This is a perspective view of an arc-shaped clamping plate in a two-stage thread protector bracket.

[0022] Figure 5 This is a perspective view of the movable bracket in a two-stage thread protector bracket.

[0023] Figure 6 This is a perspective view of a fixed bracket in a two-stage thread protector bracket.

[0024] In the attached diagram: 1. Mounting plate; 2. Positioning mechanism; 21. Connecting plate; 22. Positioning pin; 23. Rubber pad; 3. Bracket assembly; 31. Spring shock absorber; 32. Fixed bracket; 33. Threaded rod; 34. Threaded sleeve; 35. Movable bracket; 36. Limiting groove; 37. Protective ring; 4. Limiting mechanism; 41. Connecting column; 42. Connecting block; 43. Slide rail; 44. Arc-shaped clamping plate; 45. Spring; 5. Handwheel; 6. Slide rod; 7. Mounting bracket; 8. Turn handle. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-6This utility model is a two-stage thread protector bracket, including a mounting plate 1. Positioning mechanisms 2 are fixedly connected to both sides of the top of the mounting plate 1. A bracket assembly 3 is fixedly connected to the top of the mounting plate 1. A limiting mechanism 4 is fixedly connected to the bottom of the bracket assembly 3. The bracket assembly 3 includes a spring shock absorber 31. The bottom of the spring shock absorber 31 is fixedly connected to the mounting plate 1. A fixed bracket 32 ​​is fixedly connected to the top of the spring shock absorber 31. A threaded rod 33 is movably connected to one side of the top of the fixed bracket 32 ​​via a bearing. A threaded sleeve 34 is threadedly connected to the surface of the threaded rod 33. A movable bracket 35 is fixedly connected to the top of the threaded sleeve 34. A limiting groove 36 is opened on the top of both the movable bracket 35 and the top of the fixed bracket 32. A protective ring 37 is fixedly connected to one side of the inner cavity of the limiting groove 36.

[0028] Specifically: The fixed bracket 32 ​​adopts a disc frame structure, with one side of the bottom connected to the threaded rod 33 via a bearing. The inner ring of the bearing fits tightly with the threaded rod 33, ensuring that the threaded rod 33 rotates flexibly and stably. The movable bracket 35 also has a disc frame structure, with a circular limiting groove 36 on the top. The protective ring 37 is made of soft silicone material, which has good flexibility and aging resistance. The movable bracket 35 has through holes that match the slide rod 6, enabling the movable connection between the slide rod 6 and the movable bracket 35. The spring shock absorber 31 can effectively absorb the vibration of the work site and the impact generated by the operation of the equipment. The impact force provides a stable placement environment for the thread protector. The frame structure of the fixed bracket 32 ​​and the movable bracket 35 ensures the load-bearing capacity of the bracket. The operator can adjust the height of the movable bracket 35 by turning the handle 8 to quickly adapt to thread protectors of different lengths, improving the versatility of the bracket. The slide bar 6 provides a stable guide for the lifting and lowering of the movable bracket 35. The additional support of the mounting bracket 7 for the thread rod 33 enhances the stability of the structure. The design of the limiting groove 36 and the protective ring 37 can effectively avoid the wear caused by direct contact between the thread protector and the bracket, further strengthening the protection of the thread protector.

[0029] Example 2

[0030] Please see Figure 1-6Based on Embodiment 1, the limiting mechanism 4 includes connecting posts 41, which are disposed on both sides of the bottom of the fixed bracket 32 ​​and both sides of the bottom of the movable bracket 35. A connecting block 42 is fixedly connected to the bottom of the connecting posts 41, and a slide rail 43 is slidably connected to the inner cavity of the connecting block 42. An arc-shaped clamping plate 44 is fixedly connected to one side of the slide rail 43, and a spring 45 is fixedly connected to the other side of the slide rail 43. One side of the spring 45 is fixedly connected to the connecting block 42. The positioning mechanism 2 includes a connecting plate 21, the bottom of which is fixedly connected to the mounting plate 1. The surface of the connecting plate 21 is threaded with a positioning pin 22. A rubber pad 23 is fixedly connected to one side of the positioning pin 22. A handwheel 5 is fixedly connected to the surface of the positioning pin 22. The surface of the handwheel 5 is provided with a first anti-slip texture. A slide rod 6 is fixedly connected to one side of the top of the fixed bracket 32. The surface of the slide rod 6 is movably connected to the movable bracket 35. A mounting bracket 7 is fixedly connected to the top of the slide rod 6. One side of the bottom of the mounting bracket 7 is movably connected to the threaded rod 33 through a bearing. A throttle 8 is fixedly connected to both sides of the threaded sleeve 34. The surface of the throttle 8 is provided with a second anti-slip texture.

[0031] Specifically: Connecting column 41 provides a stable installation base for the entire limiting mechanism 4. The sliding connection between connecting block 42 and slide rail 43 allows the arc-shaped clamping plate 44 to move flexibly. When the thread protector is placed on the bracket assembly 3, the elastic force of spring 45 pushes slide rail 43 and the connected arc-shaped clamping plate 44 to slide along the inner cavity of connecting block 42 until the arc-shaped clamping plate 44 tightly fits the outer surface of the thread protector. This not only adapts to thread protectors of different shapes and sizes, achieving self-adaptive clamping, but also effectively buffers external impacts during transportation, preventing the thread protector from shifting or shaking, greatly improving the safety and stability of the thread protector placed on the bracket. Positioning pin 22 is connected to connecting plate 21 by threads, allowing operators to easily adjust the extension and retraction of positioning pin 22. The rubber pad 23 on one side of positioning pin 22 is a key component for achieving precise positioning and firm fixation. The rubber pad 23 has good elasticity and friction. When the positioning pin 22 is rotated to extend it, the rubber pad 23... The rubber pad 23 can fit tightly against the mounting surface, using friction to firmly fix the bracket in the designated position. The handwheel 5 increases the area for the operator to apply force, making it easier to control the rotation angle and force compared to directly rotating the positioning pin 22. The slide rod 6 is movably connected to the movable bracket 35, providing stable guidance and support for the lifting and lowering of the movable bracket 35. When adjusting the height of the movable bracket 35 through the threaded rod 33 and the threaded sleeve 34, the slide rod 6 can limit the direction of movement of the movable bracket 35, preventing it from deviating or shaking during lifting and lowering, ensuring that the movable bracket 35 moves smoothly along the vertical direction. When rotating the threaded rod 33 to adjust the height of the movable bracket 35, the mounting bracket 7 can effectively share the radial and axial forces borne by the threaded rod 33, reducing the deformation and shaking of the threaded rod 33, making the rotation of the threaded rod 33 more stable. The handle 8 provides the operator with a gripping part that is easy to apply force to. Compared to directly rotating the threaded sleeve 34, it is more ergonomically designed, making the adjustment operation easier.

[0032] The working principle of this utility model is as follows: the bracket is moved to the designated working position, and the operator rotates the handwheel 5. Since the positioning pin 22 is threadedly connected to the connecting plate 21, the rotation of the handwheel 5 drives the positioning pin 22 to move axially. As the positioning pin 22 extends, the rubber pad 23 on one side gradually contacts the mounting surface. The good elasticity of the rubber pad 23 makes it fit tightly against the mounting surface. By using the friction between itself and the surface, the entire bracket is firmly fixed in the current position.

[0033] When different lengths of thread protectors need to be placed, the operator turns the handle 8 to rotate the threaded sleeve 34 on the surface of the threaded rod 33. The threaded engagement between the threaded sleeve 34 and the threaded rod 33 causes the threaded sleeve 34 to move axially along the threaded rod 33 while rotating, thereby driving the movable bracket 35, which is fixedly connected to the top of the threaded sleeve 34, to rise and fall. During this process, the slide rod 6 at the top of the fixed bracket 32 ​​is movably connected to the through hole on the movable bracket 35, providing a stable guide for the rise and fall of the movable bracket 35. This ensures that the movable bracket 35 can be smoothly moved to the appropriate height in the vertical direction, thereby achieving precise adjustment of the height of the movable bracket 35 to accommodate thread protectors of different lengths.

[0034] Placing the thread protector in the limiting groove 36 at the top of the movable bracket 35 can provide initial positioning for the thread protector. The protective ring 37 on one side of the inner cavity of the limiting groove 36 is made of soft silicone. When the thread protector is inserted, the protective ring 37 fits tightly against its surface, preventing the thread protector from direct contact with the bracket and causing wear, thus further enhancing the protection of the thread protector.

[0035] When the thread protector is placed on the bracket assembly 3, it compresses the arc-shaped clamping plate 44, pushing the slide rail 43 to slide within the inner cavity of the connecting block 42, compressing the spring 45. The spring 45, under compression, generates elastic force, pushing the slide rail 43 and the connected arc-shaped clamping plate 44 to slide along the inner cavity of the connecting block 42 until the arc-shaped clamping plate 44 tightly adheres to the outer surface of the thread protector. This elastic clamping method can automatically adjust the clamping force according to the external dimensions of the thread protector, achieving adaptive clamping and ensuring that it is not damaged during transportation and storage, thereby guaranteeing its protective function for pipe threads. The spring shock absorber 31 can effectively absorb the vibration of the work site and the impact force generated by equipment operation, converting the vibration and impact force into elastic potential energy, reducing the impact of vibration and impact force on the bracket assembly 3 and the thread protector, and providing a stable placement environment for the thread protector.

[0036] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A two-stage thread protector bracket, comprising a mounting plate (1), characterized in that: Positioning mechanisms (2) are fixedly connected to both sides of the top of the mounting plate (1), a bracket assembly (3) is fixedly connected to the top of the mounting plate (1), and a limiting mechanism (4) is fixedly connected to the bottom of the bracket assembly (3). The bracket assembly (3) includes a spring damper (31), the bottom of which is fixedly connected to the mounting plate (1), and a fixed bracket (32) is fixedly connected to the top of the spring damper (31). A threaded rod (33) is movably connected to one side of the top of the fixed bracket (32) via a bearing. A threaded sleeve (34) is threadedly connected to the surface of the threaded rod (33). A movable bracket (35) is fixedly connected to the top of the threaded sleeve (34). A limiting groove (36) is provided on the top of both the movable bracket (35) and the fixed bracket (32). A protective ring (37) is fixedly connected to one side of the inner cavity of the limiting groove (36).

2. The two-stage thread protector bracket according to claim 1, characterized in that: The limiting mechanism (4) includes a connecting column (41), which is located on both sides of the bottom of the fixed bracket (32) and both sides of the bottom of the movable bracket (35). A connecting block (42) is fixedly connected to the bottom of the connecting column (41). A slide rail (43) is slidably connected to the inner cavity of the connecting block (42). An arc-shaped clamping plate (44) is fixedly connected to one side of the slide rail (43). A spring (45) is fixedly connected to the other side of the slide rail (43). One side of the spring (45) is fixedly connected to the connecting block (42).

3. A two-stage thread protector bracket according to claim 1, characterized in that: The positioning mechanism (2) includes a connecting plate (21), the bottom of which is fixedly connected to the mounting plate (1), and a positioning pin (22) is threadedly connected to the surface of the connecting plate (21), and a rubber pad (23) is fixedly connected to one side of the positioning pin (22).

4. A two-stage thread protector bracket according to claim 3, characterized in that: The surface of the positioning pin (22) is fixedly connected to a handwheel (5), and the surface of the handwheel (5) is provided with a first anti-slip texture.

5. A two-stage thread protector bracket according to claim 1, characterized in that: A slide rod (6) is fixedly connected to one side of the top of the fixed bracket (32), and the surface of the slide rod (6) is movably connected to the movable bracket (35).

6. A two-stage thread protector bracket according to claim 5, characterized in that: The top of the slide bar (6) is fixedly connected to the mounting bracket (7), and one side of the bottom of the mounting bracket (7) is movably connected to the threaded rod (33) via a bearing.

7. A two-stage thread protector bracket according to claim 1, characterized in that: Both sides of the threaded sleeve (34) are fixedly connected to a throttle (8), and the surface of the throttle (8) is provided with a second anti-slip texture.