A differential pressure sensor mounting block

Abstract

The embodiment of the application provides a differential pressure sensor mounting clamp block, and relates to the technical field of sensors.The differential pressure sensor mounting clamp block comprises a left clamp block, a right clamp block, an elastic buffer assembly and a quick-release locking assembly;the left clamp block and the right clamp block are symmetrical structures, and the opposite surfaces of the two are each provided with a mounting groove;after buckling, a circular mounting hole for accommodating a sensor is formed, a test groove is formed at the bottom of the mounting groove, and an air inlet hole for inflating into the test groove is formed on the left clamp block and the right clamp block;the elastic buffer assembly is arranged at the bottom of the mounting groove and is used for realizing flexible contact of the sensor and the clamp block;the quick-release locking assembly is arranged on the outer sides of the left clamp block and the right clamp block and is used for realizing quick buckling and locking of the clamp block.The application has the effects of improving dismounting efficiency and enhancing sealing reliability.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a differential pressure sensor mounting clip. Background Technology

[0002] In differential pressure sensor applications, the mounting clamp is a core component connecting the sensor and the detection pipeline, and its performance directly affects the sensor's measurement accuracy and equipment maintenance efficiency. Currently, the mainstream integrated clamp structure has significant drawbacks:

[0003] 1. Low disassembly and assembly efficiency: The integral clamp is rigidly connected to the pipeline. When replacing the sensor, all pipeline interfaces need to be removed. The operation steps are cumbersome, which seriously affects the utilization rate of the equipment. Moreover, repeated disassembly can easily cause wear on the pipeline interfaces and increase the risk of leakage.

[0004] 2. Poor sealing reliability: Traditional clamps mostly use a single sealing structure. Affected by equipment vibration and ambient temperature fluctuations, the pressure on the sealing surface is easily unbalanced, which not only affects the accuracy of test data, but may also damage internal equipment components due to leakage of corrosive media.

[0005] To address the aforementioned issues, there is an urgent need to design a differential pressure sensor mounting clamp that balances ease of assembly and disassembly, positioning accuracy, and sealing reliability, in order to meet the demands of the industrial testing field for both high performance and cost-effectiveness. Utility Model Content

[0006] To address the aforementioned technical problems, this application provides a differential pressure sensor mounting clamp.

[0007] The differential pressure sensor mounting clip provided in this application adopts the following technical solution:

[0008] A differential pressure sensor mounting clamp includes a left clamp, a right clamp, an elastic buffer assembly, and a quick-release locking assembly. The left and right clamps are symmetrical, with mounting grooves on their opposite surfaces. When engaged, they form a circular mounting hole for accommodating the sensor. A test groove is formed at the bottom of the mounting groove. Air inlets are provided on the left and right clamps for inflating the test groove. The elastic buffer assembly is located at the bottom of the mounting groove to achieve flexible contact between the sensor and the clamp. The quick-release locking assembly is located on the outside of the left and right clamps to achieve quick engagement and locking of the clamps.

[0009] Furthermore, the right clamping block is provided with positioning guide posts near the four corners, and the outer wall of the positioning guide posts is covered with an elastic rubber layer; the left clamping block and the right clamping block are provided with positioning holes at the positions corresponding to the positioning guide posts, and the inner wall of the positioning holes is sprayed with a wear-resistant coating; the positioning guide posts and positioning holes are fitted with a clearance fit.

[0010] Furthermore, the end of the positioning guide post is provided with a hemispherical guide head, and the entrance of the positioning hole is provided with a trumpet-shaped guide opening.

[0011] Furthermore, the inner walls of the mounting grooves of both the left and right clamping blocks are provided with annular sealing grooves, and double-layer sealing components are embedded in the annular sealing grooves. The double-layer sealing components include an inner fluororubber sealing ring and an outer silicone buffer ring.

[0012] Furthermore, the elastic buffer assembly includes buffer holes, a compression spring, and a buffer pad; the buffer holes are evenly spaced at the bottom of the mounting groove; the compression spring is disposed within the buffer holes, and the buffer pad is bonded to the top of the compression spring; the buffer pad is made of polyurethane material.

[0013] Furthermore, the left and right clamping blocks are provided with spiral heat dissipation grooves on the inner wall of the sensor. When the sensor passively absorbs heat, the heat dissipation grooves can increase the contact area between the clamping blocks and the air, assist in heat dissipation, and slow down the aging rate of the seals and the sensor.

[0014] Furthermore, the quick-release locking assembly includes a bolt hole on the top of the left clamping block and a bolt through hole at the corresponding position on the right clamping block; a connecting bolt threaded into the bolt through hole is inserted through the bolt through hole.

[0015] Furthermore, a butterfly spring is fitted onto the connecting bolt, and the butterfly spring abuts between the right clamping block and the head of the connecting bolt.

[0016] Furthermore, both the left and right clamping blocks are provided with several weight-reducing grooves.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] Improved assembly and disassembly efficiency: The quick-release locking component allows the clamp to snap and lock quickly. Compared with the traditional integral clamp that is rigidly connected to the pipeline, it is not necessary to remove all pipeline interfaces when replacing the sensor, which greatly simplifies the operation steps, improves equipment utilization, and reduces wear on pipeline interfaces caused by repeated disassembly, thus reducing the risk of leakage.

[0019] Enhanced sealing reliability: The inner walls of the mounting grooves of both the left and right clamping blocks are provided with annular sealing grooves, and double-layer sealing components are embedded in the annular sealing grooves, including an inner fluororubber sealing ring and an outer silicone buffer ring. This double-layer sealing structure can better adapt to equipment vibration, ambient temperature fluctuations, etc., maintain pressure balance on the sealing surface, improve sealing reliability, and thus ensure the accuracy of test data and reduce damage to internal components of the equipment due to leakage of corrosive media.

[0020] Achieving flexible contact and precise positioning: The elastic buffer component is located at the bottom of the mounting groove, enabling flexible contact between the sensor and the clamping block. This effectively buffers external impact forces and protects the sensor. The positioning guide post of the right clamping block and the positioning hole of the left clamping block are fitted with a clearance fit. The end of the positioning guide post is equipped with a hemispherical guide head, and the entrance of the positioning hole is equipped with a flared guide opening, facilitating quick and accurate positioning and improving installation accuracy and efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0022] Figure 2 This is a schematic diagram of the left clamping block.

[0023] Figure 3 This is a cross-sectional view of the left clamping block.

[0024] Figure 4 yes Figure 3 A magnified structural diagram of part A in the middle.

[0025] Explanation of reference numerals in the attached diagram: 1. Left clamping block; 2. Right clamping block; 3. Mounting groove; 4. Test groove; 5. Air inlet; 6. Positioning guide post; 7. Positioning hole; 8. Annular sealing groove; 9. Fluororubber sealing ring; 10. Silicone buffer ring; 11. Buffer hole; 12. Compression spring; 13. Buffer pad; 14. Spiral heat dissipation groove; 15. Bolt hole; 16. Bolt through hole. Detailed Implementation

[0026] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two. The term “and / or” is used to describe the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can indicate: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0027] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0029] This application discloses a differential pressure sensor mounting clip, referring to... Figure 1 The device includes a left clamping block 1, a right clamping block 2, an elastic buffer assembly, and a quick-release locking assembly. The left clamping block 1 and the right clamping block 2 are symmetrical structures. The opposing surfaces of the left clamping block 1 and the right clamping block 2 are provided with mounting grooves 3. When the two are fastened together, they form a circular mounting hole for accommodating the sensor. A test groove 4 is formed at the bottom of the mounting groove 3. Air inlets 5 are opened on the left clamping block 1 and the right clamping block 2 to inflate the test groove 4. Several weight reduction grooves are opened on both the left clamping block 1 and the right clamping block 2. The elastic buffer assembly is located at the bottom of the mounting groove 3 to achieve flexible contact between the sensor and the clamping block. The quick-release locking assembly is located on the outside of the left clamping block 1 and the right clamping block 2 to achieve quick fastening and locking of the clamping blocks.

[0030] Reference Figure 1 and Figure 2 The right clamping block 2 is provided with positioning guide posts 6 near the four corners, and the outer wall of the positioning guide post 6 is covered with an elastic rubber layer; the left clamping block 1 is provided with positioning holes 7, which correspond to the positioning guide posts 6 on the right clamping block 2, and the inner wall of the positioning holes 7 is sprayed with a wear-resistant coating; the end of the positioning guide post 6 is provided with a hemispherical guide head, and the entrance of the positioning hole 7 is provided with a trumpet-shaped guide opening, so as to facilitate the insertion of the positioning guide post 6 into the positioning hole 7. The positioning guide post 6 and the positioning hole 7 are fitted with a clearance, which facilitates the initial positioning of the left clamping block 1 and the right clamping block 2.

[0031] Reference Figure 2 , Figure 3 and Figure 4 The inner walls of the mounting grooves 3 of the left clamping block 1 and the right clamping block 2 are provided with annular sealing grooves 8. Double-layer sealing components are embedded in the annular sealing grooves 8. The double-layer sealing components include an inner fluororubber sealing ring 9 and an outer silicone buffer ring 10.

[0032] The dual sealing barrier significantly improves the reliability of media sealing. Traditional single sealing structures are prone to "single-point failure" due to poor sealing surface fit and local pressure imbalance. However, this dual-layer design constructs two independent and complementary sealing barriers through the combination of "inner main seal + outer auxiliary seal".

[0033] Inner fluororubber sealing ring 9: It plays the role of "core leak prevention". Fluororubber itself has excellent corrosion resistance and high temperature resistance. It can directly and tightly fit with the outer wall of the sensor and the sealing groove of the clamp block, blocking the leakage of the detection medium from the installation gap, avoiding the impact of the differential pressure sensor's measurement accuracy due to medium leakage, and preventing corrosive media from seeping into the clamp block or equipment cavity, damaging the sensor pins, circuits or other components.

[0034] Outer silicone buffer ring 10: Performs the function of "auxiliary leak repair + sealing compensation". Although silicone is weaker than fluororubber in terms of corrosion resistance and high temperature resistance, it has excellent elasticity and deformation ability. When the inner fluororubber ring develops extremely fine gaps due to minor installation errors or slight aging over long-term use, the outer silicone ring can "fill the gaps" through its own elastic deformation, forming a secondary leak prevention. At the same time, the silicone ring can buffer the impact of equipment vibration and temperature fluctuations on the sealing surface (such as when vibration causes slight displacement of the clamping block, the silicone ring can adaptively compress / rebound to maintain sealing pressure), avoiding local wear or sealing failure of the inner fluororubber ring due to rigid contact.

[0035] Reference Figure 2 , Figure 3 and Figure 4 The elastic buffer assembly is set in the inner annular sealing groove 8. The elastic buffer assembly includes a buffer hole 11, a compression spring 12 and an annular buffer pad 13. The buffer hole 11 is evenly opened at the bottom of the mounting groove 3. The compression spring 12 is set in the buffer hole 11, and the buffer pad 13 is bonded to the top of the compression spring 12. The buffer pad 13 is made of polyurethane.

[0036] In conjunction with the double-layer sealing structure, it ensures uniform pressure on the sealing surface. The sealing reliability of the double-layer seal depends on the uniform contact pressure between the sealing surface and the outer wall of the sensor. If the pressure is uneven (such as excessive local pressure causing excessive compression and deformation of the seal, or insufficient local pressure causing gaps), it will directly undermine the leak-proof effect of the double-layer seal. The elastic buffer component precisely solves this problem through the design of "elastic support + uniform force".

[0037] Pressure adaptive adjustment: Buffer holes 11 are evenly opened at the bottom of the mounting groove 3. Compression springs 12 are evenly distributed in a ring within the buffer holes 11. When the left clamp 1 and the right clamp 2 are fastened together to fix the sensor, each compression spring 12 will adaptively generate elastic support force according to the actual contact condition of the sensor outer wall (if there is a slight unevenness on the sensor outer wall, the spring at the corresponding position will be moderately compressed / rebounded). The dispersed elastic force is converted into "uniform ring support pressure" through the ring buffer pad 13, ensuring that the pressure at each contact point between the sensor outer wall and the inner fluororubber sealing ring 9 and the outer silicone buffer ring 10 is consistent, avoiding sealing failure caused by local pressure imbalance (such as local excessive compression and cracking of the fluororubber ring, or local insufficient pressure of the silicone ring resulting in gaps).

[0038] To mitigate the impact of installation errors: In actual installation, there may be a slight coaxiality error in the engagement of the left clamping block 1 and the right clamping block 2 (such as the gap between the positioning guide post 6 and the positioning hole 7 causing a slight offset of the clamping block). Without elastic buffering, the sensor is easily "rigidly squeezed", causing the sealing surface to shift. The elastic support of the buffer assembly can "absorb" this installation error and adjust the actual position of the sensor through the slight deformation of the spring, ensuring that the sensor is coaxial with the sealing groove, and further ensuring the uniform fit of the double-layer seal.

[0039] This design also achieves "flexible isolation" between the sensor and the clamp, protecting the sensor's core components. The core components of a differential pressure sensor (such as the pressure-sensitive chip and pin interfaces) are extremely sensitive to mechanical shock and vibration. The rigid connection of a traditional integrated clamp directly transmits equipment vibration and impact forces during clamp assembly and disassembly to the sensor, potentially damaging the sensitive chip, loosening pins, affecting measurement accuracy, or even rendering the sensor unusable. This elastic buffer assembly, through its "three-level buffer" design, provides comprehensive protection.

[0040] Primary buffer (compression spring 12): As the core buffer unit, it can absorb external impact forces (such as vibration during equipment operation and pressure when the clamping blocks are engaged), preventing the impact force from being directly transmitted to the sensor; at the same time, the elastic characteristics of the spring can transform "rigid contact" into "elastic contact", preventing the sensor from deforming due to long-term rigid compression.

[0041] Secondary buffer (polyurethane buffer pad 13): The polyurethane material has "high elasticity + high wear resistance", which can further buffer the small vibrations transmitted by the spring to achieve "secondary vibration reduction"; on the other hand, the buffer pad 13 is in direct contact with the outer wall of the sensor, which can avoid direct friction between the spring and the sensor shell (preventing the sensor shell from being scratched by the spring, or the spring from generating metal debris due to friction to contaminate the sealing groove).

[0042] Three-level buffer (in conjunction with double-layer sealing): The outer silicone buffer ring 10 itself is elastic and can form "double vibration reduction" with the elastic buffer component. The buffer component absorbs the impact force in the longitudinal direction (clamping direction), and the silicone ring absorbs the impact force in the transverse direction (equipment vibration direction), which isolates mechanical interference in all directions, protects the core components of the sensor, and extends its service life.

[0043] Reference Figure 1 and Figure 2 The left clamping block 1 and the right clamping block 2 are provided with spiral heat dissipation grooves 14 that abut against the inner wall of the sensor. When the sensor passively absorbs heat, the spiral heat dissipation grooves 14 can increase the contact area between the clamping block and the air, assist in heat dissipation, and slow down the aging rate of the seal and the sensor.

[0044] Reference Figure 1 and Figure 2 The quick-release locking assembly includes a bolt hole 15 on the top of the left clamping block 1 and a bolt through hole 16 at the corresponding position on the right clamping block 2. A connecting bolt threaded into the bolt hole 15 passes through the bolt through hole 16, and a butterfly spring is fitted on the connecting bolt. The butterfly spring abuts between the right clamping block 2 and the head of the connecting bolt.

[0045] The above are merely preferred embodiments of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included within the protection scope recorded in the claims.

Claims

1. A differential pressure sensor mounting clamp, characterized in that, It includes a left clamping block (1), a right clamping block (2), an elastic buffer assembly, and a quick-release locking assembly; the left clamping block (1) and the right clamping block (2) are symmetrical structures, and both of them have mounting grooves (3) on their opposite sides, which form a circular mounting hole for accommodating the sensor after being fastened together. A test groove (4) is formed at the bottom of the mounting groove (3), and air inlets (5) are opened on the left clamping block (1) and the right clamping block (2) to inflate the test groove (4); the elastic buffer assembly is located at the bottom of the mounting groove (3) to achieve flexible contact between the sensor and the clamping block; the quick-release locking assembly is located on the outside of the left clamping block (1) and the right clamping block (2) to achieve quick fastening and locking of the clamping blocks.

2. The differential pressure sensor mounting clamp according to claim 1, characterized in that, The right clamp (2) is provided with positioning guide posts (6) near the four corners, and the outer wall of the positioning guide posts (6) is wrapped with an elastic rubber layer; the left clamp (1) and the right clamp (2) are provided with positioning holes (7) corresponding to the positions of the positioning guide posts (6), and the inner wall of the positioning holes (7) is sprayed with a wear-resistant coating; the positioning guide posts (6) and the positioning holes (7) are fitted with a clearance.

3. A differential pressure sensor mounting clamp according to claim 2, characterized in that, The positioning guide post (6) is provided with a hemispherical guide head at its end, and the positioning hole (7) is provided with a trumpet-shaped guide opening at its entrance.

4. A differential pressure sensor mounting clamp according to claim 1, characterized in that, The inner walls of the mounting grooves (3) of the left clamping block (1) and the right clamping block (2) are provided with annular sealing grooves (8). Double-layer sealing components are embedded in the annular sealing grooves (8). The double-layer sealing components include an inner fluororubber sealing ring (9) and an outer silicone buffer ring (10).

5. A differential pressure sensor mounting clamp according to claim 4, characterized in that, The elastic buffer assembly includes a buffer hole (11), a compression spring (12), and a buffer pad (13); the buffer hole (11) is evenly opened at the bottom of the mounting groove (3); the compression spring (12) is located in the buffer hole (11), and the buffer pad (13) is bonded to the top of the compression spring (12). The buffer pad (13) is made of polyurethane.

6. A differential pressure sensor mounting clamp according to claim 1, characterized in that, The left clamp (1) and right clamp (2) abut against the inner wall of the sensor and have spiral heat dissipation grooves (14). When the sensor passively absorbs heat, the spiral heat dissipation grooves (14) can increase the contact area between the clamp and the air, assist in heat dissipation, and slow down the aging rate of the seal and the sensor.

7. A differential pressure sensor mounting clamp according to claim 1, characterized in that, The quick-release locking assembly includes a bolt hole (15) on the top of the left clamp (1) and a bolt through hole (16) at the corresponding position on the right clamp (2); a connecting bolt threaded into the bolt hole (15) is provided on the bolt through hole (16).

8. A differential pressure sensor mounting clamp according to claim 7, characterized in that, A butterfly spring is fitted on the connecting bolt, and the butterfly spring abuts between the right clamp (2) and the head of the connecting bolt.

9. A differential pressure sensor mounting clamp according to claim 1, characterized in that, Both the left clamping block (1) and the right clamping block (2) are provided with several weight-reducing grooves.

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