A guard for a pipe mounting rack

CN224872049UActive Publication Date: 2026-10-20TIANJIN HELI OIL & GAS TECH
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Patent Information

Application Number
CN202522517970.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-10-20
Estimated Expiration
2035-11-27

AI Technical Summary

Technical Problem

[0003]在现有管道安装架应用中,支架与管道之间往往缺乏必要的隔离与缓冲防护,未配置防滑垫、塑料隔垫或橡胶隔垫等防护组件,使得金属支架与管道外壁形成直接硬接触,在持续热胀冷缩、振动或微小位移作用下产生反复摩擦,导致管道防腐层被磨损破坏甚至造成管壁减薄从而埋下泄漏隐患,由于相关技术中的金属支架与管道之间未设置有效的隔离缓冲界面及减磨结构,导致长期运行中出现外壁磨穿、局部损伤及潜在泄漏风险的问题

Benefits of technology

[0025]1、通过在管道与金属安装架之间设置隔离防护套筒以及由支撑座、夹紧压板、锁紧组件和弹性压紧限位组件构成的夹持结构,形成了一个连续、稳定且具有弹性的隔离缓冲与减磨界面,有利于在管道长期运行过程中有效分散由自重、介质压力以及热胀冷缩所引起的应力,并在管道发生微小位移时以较低摩擦阻力配合其运动,从而避免传统金属支架与管道直接硬接触导致的外壁防腐层快速磨损和局部刮伤,减小因磨穿或应力集中而产生泄漏隐患,同时,聚四氟乙烯隔离防护套筒具有优良的耐腐蚀和耐磨性能,可在潮湿、含腐蚀性介质或室外环境中长期保持稳定工作状态,进一步提升防护装置的使用寿命和可靠性。

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Abstract

The utility model provides a kind of protective device for pipeline mounting rack, including multiple pipeline clamping components being arranged along pipeline axial direction, with the cooperation of pipeline outer wall isolation protection sleeve, multiple connecting plates and fixed component;Every pipeline clamping component includes the mounting plate for being connected with pipeline mounting rack, the support plate being set on mounting plate, the support seat being set on the end surface of support plate and the clamping pressure plate for clamping isolation protection sleeve on support seat to clamp pipeline.The utility model provides a kind of protective device for pipeline mounting rack, solve the problem that effective isolation buffer interface and wear-reducing structure are not set between metal support and pipeline in the related art, leading to the problem of outer wall wear, local damage and potential leakage risk in long-term operation.
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Description

Technical Field

[0001] This utility model belongs to the field of pipeline technology, and in particular relates to a protective device for pipeline mounting brackets. Background Technology

[0002] In industrial and building pipeline systems, pipe mounting brackets serve as key components for supporting and securing various transport pipelines. They are used to reliably transfer the weight of the pipeline, its attached insulation layer, and the internal medium to the building structure or foundation, preventing the pipeline from sinking, deforming, or detaching under long-term operation or external forces. Furthermore, the rational arrangement of different types of supports allows for the management of the pipeline's stress state and displacement behavior. Fixed supports act as robust anchor points, completely limiting the pipeline in multiple directions and bearing the thrust generated by temperature changes. Movable supports allow the pipeline to freely expand and contract axially to absorb thermal expansion and contraction, preventing stress concentration during bending. Seismic bracing and limiting supports can also suppress vibration and sway under seismic conditions or fluid pulsation conditions, thereby improving overall operational stability.

[0003] In existing pipe mounting applications, there is often a lack of necessary isolation and buffer protection between the support and the pipe. The absence of protective components such as anti-slip pads, plastic pads, or rubber pads results in direct hard contact between the metal support and the outer wall of the pipe. Under continuous thermal expansion and contraction, vibration, or slight displacement, repeated friction occurs, causing wear and damage to the pipe's anti-corrosion layer and even thinning of the pipe wall, thus creating potential leakage hazards. Because the relevant technologies do not have an effective isolation and buffer interface and friction-reducing structure between the metal support and the pipe, problems such as outer wall wear-through, local damage, and potential leakage risks occur during long-term operation. Utility Model Content

[0004] In view of this, the present invention aims to at least partially solve one of the related technical problems.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A protective device for a pipe mounting bracket includes multiple pipe clamping assemblies arranged along the pipe axis, an isolation protective sleeve that mates with the outer wall of the pipe, multiple connecting plates, and fixing assemblies.

[0007] Each of the pipe clamping assemblies includes a mounting plate for connecting to a pipe mounting bracket, a support plate disposed on the mounting plate, a support seat disposed on the upper surface of the support plate, and a clamping pressure plate for clamping the isolation protective sleeve on the support seat to clamp the pipe. The upper surface of the support seat is an arc-shaped support surface that mates with the bottom outer wall of the isolation protective sleeve.

[0008] The clamping plate and the support plate are connected by a locking assembly. The isolation protective sleeve is clamped between the clamping plate and the support base, and an elastic clamping and limiting assembly is provided on the side of the clamping plate.

[0009] The multiple connecting plates are respectively connected to the pipe clamping assembly, and the fixing assembly is disposed in the middle of the multiple connecting plates and connected to the pipe mounting frame, so that the multiple pipe clamping assemblies are installed on the pipe mounting frame as a whole through the connecting plates and the fixing assembly.

[0010] Furthermore, there are two pipe clamping assemblies, which are spaced apart along the straight length of the pipe. There are two isolation and protective sleeves that correspond one-to-one with the pipe clamping assemblies. Each isolation and protective sleeve is fitted onto the outer wall of the pipe inside the corresponding pipe clamping assembly.

[0011] Furthermore, the clamping plate has a U-shaped structure and is sleeved on the outside of the corresponding isolation and protective sleeve, with the left and right ends of the clamping plate forming outward bent edges respectively;

[0012] The locking assembly is disposed between the bent edge and the support plate, and is used to lock and fix the clamping plate relative to the support plate.

[0013] Furthermore, the locking assembly includes a locking screw, a fixing nut, and a buffer block;

[0014] The bottom end of the locking screw is threaded to the support plate. The locking screw passes through the bent edge corresponding to the end of the clamping plate and the buffer block in sequence. The buffer block is disposed between the bent edge and the locking screw and is sleeved on the outside of the locking screw.

[0015] The fixing nut is threaded to the upper end of the locking screw, so that by tightening the fixing nut, the buffer rubber block applies a clamping force to the clamping plate and buffers the impact during the locking process.

[0016] Furthermore, the elastic clamping and limiting assembly includes a guide rod, a clamping spring, and a limiting nut;

[0017] The side end face of the clamping plate is provided with a slot extending along its height direction. The guide rod is disposed in the slot and passes through the side of the clamping plate before being connected to the support base. The compression spring is sleeved on the outside of the guide rod and located in the slot. The limiting nut is threaded to the upper part of the guide rod and located at the top of the compression spring, so that the compression spring is in a compressed state between the limiting nut and the support base, providing elastic clamping force and stroke limit to the clamping plate.

[0018] Furthermore, each of the pipe clamping components is provided with two elastic clamping and limiting components symmetrically arranged on the left and right sides of the clamping plate, respectively.

[0019] Furthermore, the ends of the plurality of connecting plates are respectively welded to the inner end faces of the corresponding clamping plates in the two pipe clamping assemblies;

[0020] The fixing component is a U-shaped fixing frame, which is sleeved on the outside of the multiple connecting plates. Both its left and right ends are provided with threaded sections to clamp and fix the multiple connecting plates with nuts.

[0021] Furthermore, each of the mounting plates has a cushioning pad on its lower end face to form an elastic isolation layer between the mounting plate and the pipe mounting bracket when the mounting plate is installed on the pipe mounting bracket by fasteners.

[0022] Furthermore, the isolation and protective sleeve is a polytetrafluoroethylene sleeve.

[0023] Furthermore, each of the mounting plates is provided with strip-shaped fixing holes around its perimeter, which are used to cooperate with fasteners provided on the pipe mounting bracket to adjust the installation position of the mounting plate on the pipe mounting bracket.

[0024] Compared with the prior art, the protective device for pipe mounting brackets described in this utility model has the following advantages:

[0025] 1. By installing an isolation and protective sleeve between the pipeline and the metal mounting bracket, along with a clamping structure consisting of a support base, clamping plate, locking assembly, and elastic compression limiting assembly, a continuous, stable, and elastic isolation buffer and friction-reducing interface is formed. This effectively disperses stress caused by the pipeline's own weight, medium pressure, and thermal expansion and contraction during long-term pipeline operation. Furthermore, it accommodates the pipeline's movement with low frictional resistance when minor displacements occur, thus avoiding rapid wear and localized scratches on the outer anti-corrosion layer caused by direct hard contact between the traditional metal support and the pipeline. This reduces the risk of leakage due to wear-through or stress concentration. Simultaneously, the PTFE isolation and protective sleeve has excellent corrosion and wear resistance, maintaining stable operation in humid, corrosive media, or outdoor environments for extended periods, further enhancing the service life and reliability of the protective device.

[0026] 2. Multiple pipe clamping assemblies are arranged at intervals along the pipe axis and form an integral frame structure with the U-shaped fixing frame and connecting plate. Buffer pads are placed between the mounting plate and the pipe mounting bracket, and elastic clamping and limiting components are installed on both sides of the clamping plate. This ensures that each clamping point, while bearing the weight of the pipe, still has a certain degree of flexibility and stroke adjustment capability. This helps absorb some of the vibration and impact loads from the pipeline system, reduces noise generated during pipeline operation, and reduces constraint stress caused by installation errors or minor foundation deformation. The strip-shaped fixing holes allow installers to fine-tune the position of the mounting plate according to site conditions, thus adapting to different specifications of brackets and pipe layouts, improving the versatility and convenience of assembly. The overall structure achieves a comprehensive effect of assembly adjustment, vibration reduction, and stress release while ensuring reliable pipe clamping, enhancing the safety and stability of the pipeline installation system under complex working conditions. Attached Figure Description

[0027] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0028] Figure 1 This is a schematic diagram of a protective device for a pipe mounting bracket according to an embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram of the pipe clamping assembly described in an embodiment of the present utility model;

[0030] Figure 3 This is a schematic diagram of the locking assembly described in an embodiment of the present utility model;

[0031] Figure 4 This is a schematic diagram of the buffer pad described in an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Support plate; 110. Mounting plate; 120. Buffer pad; 200. Clamping plate; 210. Bending edge; 300. Isolation and protective sleeve; 400. Elastic clamping and limiting assembly; 410. Guide rod; 420. Compression spring; 500. Locking assembly; 510. Locking screw; 520. Fixing nut; 530. Buffer block; 600. Connecting plate; 610. U-shaped fixing bracket. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0035] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] This embodiment provides a protective device for pipe mounting brackets, primarily used for supporting and fixing various industrial and building pipes on metal supports. It establishes an isolation buffer and friction-reducing interface between the pipe and the mounting bracket, thereby preventing external wall wear and leakage risks caused by hard metal contact, thermal expansion and contraction, and vibration. The protective device is installed on an existing pipe mounting bracket. Multiple pipe clamping components arranged along the pipe's axial direction cooperate with the pipe's outer wall, providing reliable support while achieving necessary elastic buffering and positional restraint. It is suitable for various pipe specifications and different types of metal mounting bracket structures.

[0039] The protective device in this embodiment includes multiple pipe clamping assemblies arranged along the pipe axis, an isolation protective sleeve 300 that mates with the outer wall of the pipe, multiple connecting plates 600, and a fixing assembly. Preferably, there are two pipe clamping assemblies, which are spaced apart along the straight length of the pipe to form a reasonably distributed support point in the axial direction. An isolation protective sleeve 300 is provided on the inner side of each pipe clamping assembly. The multiple connecting plates 600 are respectively connected to the two pipe clamping assemblies. The fixing assembly is located in the middle of the multiple connecting plates 600 and is connected to the pipe mounting frame. This allows the multiple pipe clamping assemblies to be installed as a whole on the pipe mounting frame through the connecting plates 600 and the fixing assembly, thereby forming a set of protective and clamping units that can be disassembled as a whole without changing the original main structure of the mounting frame.

[0040] Each pipe clamping assembly includes a mounting plate 110 for connection with a pipe mounting bracket, a support plate 100 disposed on the mounting plate 110, a support seat disposed on the upper end face of the support plate 100, and a clamping pressure plate 200 for clamping the isolation protective sleeve 300 on the support seat to clamp the pipe. The support plate 100 can be integrally bent or welded to the mounting plate 110 to form a stable vertical load-bearing structure. The support seat is fixed to the upper end face of the support plate 100, and its upper end face is machined into an arc-shaped support surface that matches the bottom outer wall of the isolation protective sleeve 300, so that the lower part of the isolation protective sleeve 300 can stably fit against the arc-shaped support surface of the support seat. The clamping pressure plate 200 is located above the support seat and is U-shaped and sleeved on the outside of the isolation protective sleeve 300. Through the upper and lower clamping cooperation, the isolation protective sleeve 300 is reliably limited between the clamping pressure plate 200 and the support seat, thereby achieving the covering and support of the pipe.

[0041] The left and right ends of the clamping plate 200 form outwardly bent edges 210. The clamping plate 200 and the support plate 100 are connected by a locking assembly 500. The locking assembly 500 is disposed between the bent edges 210 and the support plate 100 and is used to lock and fix the clamping plate 200 relative to the support plate 100. Specifically, the locking assembly 500 includes a locking screw 510, a fixing nut 520, and a buffer block 530. The bottom end of the locking screw 510 is threaded to the support plate 100, and the locking screw 510 passes through the bent edges 210 at the corresponding ends of the clamping plate 200 in sequence. 10 and buffer rubber block 530, the buffer rubber block 530 is set between the bent edge 210 and the locking screw 510 and sleeved on the outside of the locking screw 510. The fixing nut 520 is threaded to the upper end of the locking screw 510. By tightening the fixing nut 520, the buffer rubber block 530 can apply a clamping force to the clamping plate 200, thereby pressing the clamping plate 200 downward to press the isolation protective sleeve 300. At the same time, the buffer rubber block 530 can buffer the impact and minor vibration during the locking process during the pressure process, avoiding local stress concentration caused by rigid locking.

[0042] To improve the fit of the clamping plate 200 to the isolation sleeve 300 and its adaptability during small displacement of the pipeline, an elastic clamping limit assembly 400 is provided on the side of the clamping plate 200, which provides adjustable clamping force and stroke limit through elastic elements. The elastic clamping and limiting assembly 400 includes a guide rod 410, a clamping spring 420, and a limiting nut. The side end face of the clamping plate 200 has a slot extending along its height direction as an assembly mounting position. The guide rod 410 is set in the slot and passes through the side of the clamping plate 200 before connecting to the support seat. The clamping spring 420 is sleeved on the outside of the guide rod 410 and located in the slot. The limiting nut is threaded to the upper part of the guide rod 410 and located at the top of the clamping spring 420, so that the clamping spring 420 is in a compressed state between the limiting nut and the support seat, providing a continuous elastic clamping force to the clamping plate 200 and limiting its movement stroke. Two elastic clamping and limiting assemblies 400 are symmetrically arranged on the left and right sides of each pipe clamping assembly, respectively, so that the clamping plate 200 can maintain a stable posture and uniform clamping force under stress and temperature change conditions.

[0043] The ends of multiple connecting plates 600 are welded to the inner end faces of the corresponding clamping plates 200 in the two pipe clamping assemblies. The connecting plates 600 serve to connect the two pipe clamping assemblies as a whole in the axial direction of the pipe, which is beneficial to distribute the load among multiple clamping points when the pipe is under stress, and at the same time prevents relative displacement between the various pipe clamping assemblies. The fixing component is a U-shaped fixing bracket 610, which is sleeved on the outside of the multiple connecting plates 600. Both ends of the U-shaped fixing bracket 610 are provided with threaded sections, which can clamp and fix the multiple connecting plates 600 with nuts. This tightens the connecting plates 600 as a whole and reliably connects them to the pipe mounting bracket through the U-shaped fixing bracket 610, so that the entire protective device forms a stable overall frame structure, which is convenient for overall installation and disassembly.

[0044] To further improve the vibration isolation and wear reduction performance between the protective device and the pipe mounting bracket, a buffer pad 120 is provided on the lower end face of each mounting plate 110. This forms an elastic isolation layer between the mounting plate 110 and the pipe mounting bracket when the mounting plate 110 is installed on the pipe mounting bracket using fasteners. The buffer pad 120 can be made of rubber or elastic synthetic material to absorb some of the vibration energy from the pipe and bracket and reduce noise from metal-to-metal contact. The isolation protective sleeve 300 is preferably made of polytetrafluoroethylene (PTFE). Its inner wall mates with the outer wall of the pipe, and its outer wall mates with the arc-shaped support surface of the support base and the inner side of the clamping plate 200. This utilizes the excellent resistance of PTFE material. The abrasion-resistant and low coefficient of friction provide a support interface with low friction and minimal damage to the pipe's anti-corrosion layer when the pipe undergoes minor axial or radial displacement. In addition, each mounting plate 110 has strip-shaped fixing holes around its perimeter for engaging with fasteners on the pipe mounting bracket to adjust the mounting position of the mounting plate 110 on the pipe mounting bracket, thereby adapting to pipe support structures of different specifications and installation spacings. Preferably, there are two pipe clamping assemblies spaced apart along the straight length of the pipe. Two isolation protective sleeves 300 correspond one-to-one with the two pipe clamping assemblies. Each isolation protective sleeve 300 is fitted onto the outer wall of the pipe inside the corresponding pipe clamping assembly to achieve multi-point support and protection for the pipe.

[0045] How this example works

[0046] Step 1: Pre-install the pipe mounting bracket on the building structure or equipment foundation. Based on the actual diameter and spacing of the pipe, install multiple mounting plates 110 on the pipe mounting bracket using fasteners. Adjust the specific position of the mounting plates 110 through the strip-shaped fixing holes so that the two pipe clamping components are spaced apart in the axial direction of the pipe to the predetermined position. At the same time, place a buffer pad 120 between the mounting plate 110 and the pipe mounting bracket. Then, fix the support base on the support plate 100 and place the isolation protective sleeve 300 on the arc-shaped support surface of the support base. Hoist or lift the pipe to be installed to the corresponding height so that the outer wall of the pipe passes through the two isolation protective sleeves 300 in sequence and fits into place with the inner wall of the isolation protective sleeve 300.

[0047] Step two: Place the clamping plate 200 onto the outside of the isolation sleeve 300 from above or side of the pipe, ensuring the U-shaped structure of the clamping plate 200 forms a clamping fit with the isolation sleeve 300 and support base. Secure the clamping plate 200 to the support plate 100 using the locking assembly 500, and adjust the tightening of the fixing nut 520 to ensure the buffer block 530 provides sufficient clamping force under pressure without imposing excessive rigid constraint on the pipe. Then, install the elastic clamping limit assembly 400 on the side of the clamping plate 200, adjusting the limit nut... The position control spring 420 is preloaded to ensure that the clamping plate 200 stably presses the isolation and protection sleeve 300 under elastic constraint. Finally, the ends of multiple connecting plates 600 are welded and fixed to the two clamping plates 200, and the U-shaped fixing bracket 610 is sleeved on the outside of the multiple connecting plates 600. The connecting plates 600 are clamped as a whole and reliably connected to the pipe mounting bracket by the nuts on the threaded sections at both ends, thus completing the installation of the entire protective device. This allows the pipeline to achieve safe support and buffer friction reduction during operation under the combined action of the isolation and protection sleeve 300 and the elastic clamping structure.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A protective device for pipe mounting brackets, characterized in that: It includes multiple pipe clamping assemblies arranged along the pipe axis, an isolation and protective sleeve (300) that mates with the outer wall of the pipe, multiple connecting plates (600), and fixing assemblies; Each of the pipe clamping assemblies includes a mounting plate (110) for connection with a pipe mounting bracket, a support plate (100) disposed on the mounting plate (110), a support seat disposed on the upper end face of the support plate (100), and a clamping plate (200) for clamping the isolation protective sleeve (300) on the support seat to clamp the pipe. The upper end face of the support seat is an arc-shaped support surface that mates with the bottom outer wall of the isolation protective sleeve (300). The clamping plate (200) is connected to the support plate (100) by a locking assembly (500). The isolation protective sleeve (300) is clamped between the clamping plate (200) and the support base, and an elastic clamping limit assembly (400) is provided on the side of the clamping plate (200). The multiple connecting plates (600) are respectively connected to the pipe clamping assembly, and the fixing assembly is disposed in the middle of the multiple connecting plates (600) and connected to the pipe mounting frame, so that the multiple pipe clamping assemblies are installed on the pipe mounting frame as a whole through the connecting plates (600) and the fixing assembly.

2. A protective device for a pipe mounting bracket according to claim 1, characterized in that: There are two pipe clamping assemblies, which are spaced apart along the straight length of the pipe. There are two isolation protective sleeves (300) that correspond one-to-one with the pipe clamping assemblies. Each isolation protective sleeve (300) is sleeved on the outer wall of the pipe inside the corresponding pipe clamping assembly.

3. A protective device for a pipe mounting bracket according to claim 1 or 2, characterized in that: The clamping plate (200) has a U-shaped structure and is sleeved on the outside of the corresponding isolation and protection sleeve (300). The left and right ends of the clamping plate (200) form bent edges (210) outward respectively. The locking assembly (500) is disposed between the bent edge (210) and the support plate (100) and is used to lock and fix the clamping plate (200) relative to the support plate (100).

4. A protective device for a pipe mounting bracket according to claim 3, characterized in that: The locking assembly (500) includes a locking screw (510), a fixing nut (520), and a buffer rubber block (530); The bottom end of the locking screw (510) is threadedly connected to the support plate (100). The locking screw (510) passes through the bent edge (210) corresponding to the end of the clamping pressure plate (200) and the buffer block (530) in sequence. The buffer block (530) is disposed between the bent edge (210) and the locking screw (510) and is sleeved on the outside of the locking screw (510). The fixing nut (520) is threaded to the upper end of the locking screw (510) so that by tightening the fixing nut (520), the buffer block (530) applies a clamping force to the clamping plate (200) and buffers the impact during the locking process.

5. A protective device for a pipe mounting bracket according to claim 1, characterized in that: The elastic clamping and limiting assembly (400) includes a guide rod (410), a clamping spring (420), and a limiting nut; The side end face of the clamping plate (200) is provided with a slot extending along its height direction. The guide rod (410) is disposed in the slot and passes through the side of the clamping plate (200) and is connected to the support seat. The compression spring (420) is sleeved on the outside of the guide rod (410) and located in the slot. The limiting nut is threadedly connected to the upper part of the guide rod (410) and located at the top of the compression spring (420), so that the compression spring (420) is in a compressed state between the limiting nut and the support seat, providing elastic clamping force and stroke limit to the clamping plate (200).

6. A protective device for a pipe mounting bracket according to claim 5, characterized in that: Each of the pipe clamping assemblies is provided with two elastic clamping and limiting assemblies (400) symmetrically arranged on the left and right sides of the clamping plate (200).

7. A protective device for a pipe mounting bracket according to claim 1, characterized in that: The ends of the plurality of connecting plates (600) are respectively welded to the inner end faces of the corresponding clamping plates (200) in the two pipe clamping assemblies; The fixing component is a U-shaped fixing bracket (610), which is sleeved on the outside of the plurality of connecting plates (600). Both the left and right ends of the U-shaped fixing bracket (610) are provided with threaded sections so as to clamp and fix the plurality of connecting plates (600) by means of nuts.

8. A protective device for a pipe mounting bracket according to claim 7, characterized in that: Each of the mounting plates (110) is provided with a buffer pad (120) on its lower end face to form an elastic isolation layer between the mounting plate (110) and the pipe mounting bracket when the mounting plate (110) is installed on the pipe mounting bracket by fasteners.

9. A protective device for a pipe mounting bracket according to claim 7, characterized in that: The isolation and protection sleeve (300) is a polytetrafluoroethylene sleeve.

10. A protective device for a pipe mounting bracket according to claim 7, characterized in that: Each of the mounting plates (110) is provided with strip-shaped fixing holes around its perimeter for engaging with fasteners provided on the pipe mounting bracket to adjust the mounting position of the mounting plate (110) on the pipe mounting bracket.