Pipeline flow sensor clamping and fixing structure
By using a detachable upper and lower ring structure, combined with a locking and adjustment device, the problem of difficult disassembly and loosening of existing pipeline flow sensor clamping structures is solved, achieving stable installation and convenient disassembly, and enhancing shock resistance and sealing performance.
Patent Information
- Application Number
- CN202522423818.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-11-14
AI Technical Summary
The existing clamping structure of pipeline flow sensors is difficult to disassemble and replace quickly, and it is prone to loosening during media flow, resulting in poor stability.
It adopts a detachable upper and lower half-ring structure, which is connected by a locking buckle, and five adjustment devices are set in the ring body, including positioning sleeves and pressing rods. Multi-point clamping is achieved by using spring preload, and stability and sealing are enhanced by sealing rings and replaceable clamping blocks.
It achieves stable installation and convenient disassembly of pipeline flow sensors, enhances shock resistance and sealing effect, adapts to different sensor models, and improves operational stability and protection capabilities.
Smart Images

Figure CN224681625U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline flow sensor installation equipment, and in particular to a pipeline flow sensor clamping and fixing structure. Background Technology
[0002] A pipeline flow sensor is a device used to measure the flow rate of fluids in pipelines, and it is widely used in various fields such as industry, municipal engineering, and medicine. Depending on the measurement principle and application scenario, there are several types of pipeline flow sensors, each with its unique installation requirements and applicable conditions. There should be relatively long straight pipe sections upstream and downstream of the sensor. When measuring gas flow rate, if the gas contains a small amount of liquid, the flow meter should be installed at a higher point in the pipeline; when measuring liquid flow rate, the flow meter should be installed at a lower point in the pipeline.
[0003] There are some problems with the existing technology. For example, the traditional clamping structure is a two-part setting and is usually locked with bolts. When the flow sensor needs to be replaced, external tools must be used. Otherwise, the clamping structure cannot be disassembled and the replacement operation cannot be performed. In addition, when the flow sensor is in use, the flow of the medium can easily cause the connection of the flow sensor to loosen. Therefore, the simple installation method cannot meet the requirements for the stable operation of the flow sensor. Utility Model Content
[0004] (1) Technical problems to be solved To address the aforementioned problems in the prior art and to overcome its shortcomings, this utility model provides a pipe flow sensor clamping and fixing structure that can be reasonably manufactured and used.
[0005] (2) Technical solution To achieve the above technical objectives, this utility model provides a pipe flow sensor clamping and fixing structure, including a detachable upper half ring and a lower half ring, which are fastened together by a locking buckle. Both the upper and lower halves of the ring are equipped with adjustment devices. There are five adjustment devices in total. The upper half of the ring has three adjustment devices and the lower half of the ring has two adjustment devices. The five adjustment devices are arranged in a circular arrangement with equal intervals around the circumference on the circular structure formed by the upper and lower halves of the ring. When in use, the five adjustment devices cooperate with each other to clamp the central pipe flow sensor. The adjusting device includes positioning sleeves correspondingly installed on the inner rings of the upper and lower half rings. An adjustable pressing rod, capable of being pushed outwards or inwards, is installed inside the positioning sleeve. The pressing rod has a clamping groove on the side facing the pipeline flow sensor. Hollow guide sleeves are installed on the upper and lower half rings. The pressing rod passes through the upper and lower half rings and is correspondingly installed in the center of the hollow guide sleeve. One end of the hollow guide sleeve is located on the outer side of the upper and lower half rings, and the other end is fixedly installed on the inner side of the corresponding positioning sleeve. A stop block is provided inside the positioning sleeve on the pressing rod. A spring is sleeved on the pressing rod, and the spring is confined between the stop block and the hollow guide sleeve.
[0006] Preferably, the upper half ring and the lower half ring are further provided with a sealing ring during assembly.
[0007] Preferably, the upper half ring has a first limiting hole for installing the sealing ring inside; the lower half ring has a second limiting hole for installing the sealing ring inside.
[0008] Preferably, the edge of the upper half ring is provided with a hook groove that cooperates with the buckle. The hook groove is an indented groove, and the groove opening is larger than the hook surface of the buckle.
[0009] Preferably, the outer side of the lower half ring is provided with a mounting base, the buckle is mounted on the mounting base, and at least one buckle is provided on each of the left and right sides of the lower half ring.
[0010] Preferably, the pressing rod has a threaded hole on the side facing the pipeline flow sensor, and a T-shaped clamping block with threads on the bottom can be screwed into the threaded hole. The clamping block has a clamping groove on its top, and the clamping groove is an open groove with an arc.
[0011] Preferably, an anti-slip layer is bonded to the top of the clamping groove. The anti-slip layer is made of rubber material and has the same curvature as the clamping groove.
[0012] (3) Beneficial effects The advantages of this utility model are as follows: By employing a detachable, snap-fit upper and lower half-ring structure, and equidistantly arranged five spring-loaded adjustment devices on its inner circumference, this design achieves coordinated clamping and fixation of the central pipeline flow sensor. This design allows the pipeline flow sensor to automatically adapt to its external contour during installation through the independent extension and retraction of each clamping rod, achieving balanced force application at multiple points. This effectively avoids the problem of pipeline flow sensor housing deformation or measurement accuracy impairment caused by stress concentration. Furthermore, it provides shock resistance to the pipeline flow sensor, improving its stability during use. Simultaneously, this structure has good versatility and can be adapted to... This invention supports sensors of different models within a certain size range. Replaceable clamping blocks and their anti-slip layers at the ends of the clamping rod further enhance clamping stability and anti-slip performance, protecting the surface of the pipeline flow sensor from scratches. The invention utilizes a locking mechanism to replace the original bolt-locking structure, effectively enabling disassembly without additional tools, facilitating worker disassembly and replacement of the internal structure. The highly flexible sealing rings between the rings, working in conjunction with the locking mechanism, can tightly conform to the inner walls of the opening edges of both rings through elastic deformation, achieving pressure and sealing effects. The sealing rings also enhance the dustproof and waterproof capabilities of the entire installation structure, ensuring the sensor can operate stably for extended periods under complex conditions. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments. Wherein: Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a breakdown diagram of the upper and lower halves of the ring.
[0015] Figure 3 This is a schematic diagram of the buckle being assembled on the hook groove.
[0016] The attached figures are labeled as follows: Upper half ring (100), first limiting hole (101), hook groove (102); Lower half ring (200), second limiting hole (201), mounting base (202); Lock (300); Adjustment device (400), pressing rod (401), stop block (402), clamping block (403), clamping groove (404), positioning sleeve (405), hollow guide sleeve (406), spring (407); Sealing ring (500). Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example:
[0018] Please see Figure 1-3 As shown, the present invention discloses a pipe flow sensor clamping and fixing structure, comprising a detachable upper half ring 100 and a lower half ring 200, which are fastened together by a locking buckle 300. The upper half ring 100 has a hook groove 102 that mates with the locking buckle 300 on its edge. The hook groove 102 is an indented groove with an opening larger than the hook surface of the locking buckle 300. The lower half ring 200 has a mounting base 202 on its outer side, and the locking buckle 300 is mounted on the mounting base 202. At least one locking buckle 300 is provided on each of the left and right sides of the lower half ring 200. A sealing ring 500 is also provided when the upper half ring 100 and the lower half ring 200 are assembled. Both the upper half-ring 100 and the lower half-ring 200 are equipped with adjusting devices 400. There are five adjusting devices 400 in total: three on the upper half-ring 100 and two on the lower half-ring 200. These five adjusting devices 400 are arranged equidistantly in a circular pattern on the annular structure formed by the upper half-ring 100 and the lower half-ring 200. During use, the five adjusting devices 400 cooperate to clamp the central pipe flow sensor. For details, see [link to details]. Figure 1 The upper half ring 100 has a first limiting hole 101 inside for installing the sealing ring 500; the lower half ring 200 has a second limiting hole 201 inside for installing the sealing ring 500. The adjusting device 400 includes a positioning sleeve 405 correspondingly installed on the inner rings of the upper half ring 100 and the lower half ring 200. A pressing rod 401 that can be adjusted to push outward or inward is installed inside the positioning sleeve 405. The pressing rod 401 has a clamping groove 404 on the side facing the pipeline flow sensor. A hollow guide sleeve 406 is installed on the upper half ring 100 and the lower half ring 200. The pressing rod 401 passes through the upper half ring 100 and the lower half ring 200 and is correspondingly installed in the center of the hollow guide sleeve 406. One end of the hollow guide sleeve 406 is located on the outside of the upper half ring 100 and the lower half ring 200, and the other end is fixedly installed on the inside of the corresponding positioning sleeve 405. The pressing rod 401 has a stop 402 inside the positioning sleeve 405. A spring 407 is sleeved on the pressing rod 401. The spring 407 is limited between the stop 402 and the hollow guide sleeve 406.
[0019] To clamp pipe flow sensors with different orifice sizes, the clamping rod 401 has a threaded hole on the side facing the pipe flow sensor. A T-shaped clamping block 403 with threads on the bottom can be screwed into the threaded hole. The T-shaped clamping block 403 can be replaced with a long or short one according to actual needs. The top of the clamping block 403 has a clamping groove 404. The clamping groove 404 is an open groove with an arc. It should be noted that the top of the clamping groove 404 is bonded with an anti-slip layer. The anti-slip layer is made of rubber material and has the same arc as the clamping groove 404. In addition to the anti-slip effect and clamping effect, the anti-slip layer can also prevent scratches.
[0020] When installing a pipeline flow sensor, first place the flow sensor between the two adjusting devices of the lower half ring, then cover it with the upper half ring and fasten the upper and lower half rings together with the latches on both sides to form a complete clamping ring. During the closing process, the pressure rods of the five circumferentially distributed adjusting devices will move synchronously towards the center under the preload of the spring, making the pipeline flow sensor shockproof and more stable during use. The clamping blocks at their ends will first contact the outer wall of the pipeline flow sensor. As the latches are tightened, each pressure rod will automatically adjust its extension length according to the actual shape of the pipeline flow sensor. The springs are compressed to different degrees, thereby generating a continuous and uniform clamping force. Finally, through the combined action of the arc-shaped clamping grooves on the five clamping blocks and the anti-slip layer, the sensor is firmly and stably held in the center of the clamping structure, completing the installation. Throughout the process, the sealing ring is compressed, thereby achieving sealing and stable installation of the ring body mating surface. By setting latches to replace the original bolt installation, this device can be disassembled and installed without the need for additional tools, making disassembly and assembly more convenient.
[0021] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A clamping and fixing structure for a pipeline flow sensor, characterized in that, It includes a detachable upper half ring (100) and a lower half ring (200), which are fastened together by a latch (300); Both the upper half ring (100) and the lower half ring (200) are provided with adjustment devices (400). There are five adjustment devices (400). The upper half ring (100) is provided with three adjustment devices (400), and the lower half ring (200) is provided with two adjustment devices (400). The five adjustment devices (400) are arranged in a circular arrangement at equal intervals around the circumference on the ring structure formed by the upper half ring (100) and the lower half ring (200). When in use, the five adjustment devices (400) cooperate with each other to clamp the central pipeline flow sensor. The adjusting device (400) includes a positioning sleeve (405) correspondingly installed on the inner rings of the upper half ring (100) and the lower half ring (200). A pressing rod (401) adjustable to be pushed outwards or inwards is installed inside the positioning sleeve (405). The pressing rod (401) has a clamping groove (404) on the side facing the pipeline flow sensor. Hollow guide sleeves (406) are installed on the upper half ring (100) and the lower half ring (200). The pressing rod (401) passes through the upper half ring (100) and the lower half ring. (200) and correspondingly installed in the center of the hollow guide sleeve (406). One end of the hollow guide sleeve (406) is located on the outside of the upper half ring (100) and the lower half ring (200), and the other end is fixedly installed on the inside of the corresponding positioning sleeve (405). The pressing rod (401) has a stop (402) inside the positioning sleeve (405). A spring (407) is sleeved on the pressing rod (401). The spring (407) is limited between the stop (402) and the hollow guide sleeve (406).
2. The pipe flow sensor clamping and fixing structure according to claim 1, characterized in that, The upper half ring (100) and the lower half ring (200) are also provided with a sealing ring (500) during assembly.
3. The pipe flow sensor clamping and fixing structure according to claim 2, characterized in that, The upper half ring (100) has a first limiting hole (101) inside for installing the sealing ring (500); the lower half ring (200) has a second limiting hole (201) inside for installing the sealing ring (500).
4. A pipe flow sensor clamping and fixing structure according to any one of claims 1-3, characterized in that, The upper half ring (100) has a hook groove (102) on its edge that cooperates with the buckle (300). The hook groove (102) is an indented groove and the opening of the groove is larger than the hook surface of the buckle (300).
5. The pipe flow sensor clamping and fixing structure according to claim 4, characterized in that, The lower half ring (200) has a mounting base (202) on its outer side, and the latch (300) is mounted on the mounting base (202). The lower half ring (200) has at least one latch (300) on each of its left and right sides.
6. The pipe flow sensor clamping and fixing structure according to claim 5, characterized in that, The pressing rod (401) has a threaded hole on the side facing the pipeline flow sensor. A T-shaped clamping block (403) with a threaded bottom can be screwed into the threaded hole. The clamping block (403) has a clamping groove (404) on its top. The clamping groove (404) is an open groove with an arc.
7. The pipe flow sensor clamping and fixing structure according to claim 6, characterized in that, The top of the clamping groove (404) is bonded with an anti-slip layer made of rubber material, and the anti-slip layer has the same curvature as the clamping groove (404).