Annular sensor

Abstract

The invention discloses an annular sensor, relates to the technical field of sensor equipment, and aims to solve the problem of inaccurate measurement due to existence of coupling force in an existing sensor. Comprising a sensor element, a positioning installation mechanism integrated bearing plate, a power connection port, an installation sleeve and a positioning assembly, the installation sleeve constructs a sensor installation frame, and the power connection port transmits electric signals. The opening mechanism is composed of a top plate, a telescopic piece, a bottom plate and an opening assembly, the opening assembly cooperates with the telescopic piece while the installation space is closed, and the coupling force generated when the sensor is pressed is reduced. When the sensor element is subjected to external pressure, the sensor element can be uniformly and stably expanded, and shaking and coupling force in the mounting sleeve are effectively eliminated, so that the accuracy and the stability of measurement are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sensor equipment, in particular to a ring sensor. Background Art

[0002] In the fields of chemistry, materials science, and industrial processing, reactors in high-temperature and high-pressure environments are core equipment, and their performance stability and safety are crucial to the entire production process. With the rapid development of science and technology, especially in the study of chemical reactions under extreme conditions, the application of high-temperature reaction devices is becoming more and more widespread. However, the pressure control mechanism of traditional high-temperature reaction devices is particularly insufficient when dealing with a sharp increase in internal pressure.

[0003] Traditional equipment mostly relies on simple pressure relief valves or bursting discs as passive pressure relief means. This type of method has significant limitations: on the one hand, its reaction is delayed, and it is difficult to respond quickly when the pressure reaches the dangerous threshold; on the other hand, the pressure relief process lacks precise control, which may lead to resource waste due to too fast pressure relief, and may also cause safety hazards due to untimely pressure relief. In addition, frequent pressure relief operations may also increase the wear of the reactor sealing structure and reduce the service life of the equipment. What is more complicated is that under high temperature and high pressure environments, a large amount of gas, steam and incompletely reacted solid substances are often generated inside the reactor. If these by-products are not handled in a timely and effective manner, the instability of the pressure in the reactor will be further aggravated, increasing the risk of serious accidents such as explosions. To this end, the present invention proposes an annular sensor. Summary of the invention

[0004] The object of the present invention is to provide a ring sensor to solve the problem mentioned in the background technology that the existing dust collector cannot handle high-temperature and high-humidity smoke and is difficult to clean.

[0005] To achieve the above object, the present invention provides the following technical solution: an annular sensor, comprising:

[0006] The sensor element further comprises:

[0007] A positioning and mounting mechanism, comprising a bearing plate, an electrical connection port, a mounting sleeve and a positioning assembly;

[0008] The mounting sleeve is mounted on the carrier plate and used to form a mounting frame for supporting the sensor element, and the electrical connection port is mounted on the side wall of the carrier plate and used to transmit the electrical signal in the device through the connection wire;

[0009] The spreading mechanism comprises a top plate, a telescopic member, a bottom plate and a spreading assembly;

[0010] The top plate and the bottom plate are respectively mounted on the mounting sleeve and the supporting plate and are used to form a closed space for the positioning and mounting mechanism. The expansion assembly is mounted on the bottom plate and is used to assist the sensor element in reducing the coupling force when it is squeezed. The telescopic member is mounted on the top plate and is used to cooperate with the expansion assembly for expansion.

[0011] Furthermore, the sensor element comprises a strain beam, the upper end surface array of the strain beam is provided with an upper bearing column for applying pressure to the strain beam, and the lower end surface array of the strain beam is provided with a lower bearing column for cooperating with the upper bearing column to apply pressure to the strain beam.

[0012] Further, the positioning assembly includes a U-shaped groove and a base groove arranged in an array on the carrier plate for fixing the carrier plate;

[0013] It also includes a strain gauge mounting block, a mounting groove is opened on the inner wall of the mounting sleeve, the strain gauge mounting block is located in the mounting groove and is fixed on the mounting sleeve by bolts, and a positioning hole for installing the strain gauge is opened on one side of the strain gauge mounting block.

[0014] Further, the expansion assembly comprises a mounting tube mounted on the bottom plate, the mounting tube is provided with mounting plates in array, the mounting plates are hinged to the mounting tube, one end of the mounting plate is hinged with a connecting rod, the other end of the connecting rod is hinged with an abutment block, and the mounting tube is also provided with a spring for resetting the mounting tube;

[0015] The telescopic member and the mounting plate correspond to each other one by one and are located on the same vertical axis.

[0016] Furthermore, it also includes a strain gauge, which is installed on the strain gauge mounting block through the cooperation of the positioning hole and the positioning pin, and the strain gauge is provided with a welding pad, and the lead wire of the strain gauge is welded on the welding pad on the strain gauge.

[0017] Furthermore, under normal conditions, a gap is left between the sensor element and the strain gauge, wherein the strain gauge mounting blocks in the positioning and mounting mechanism and the abutment blocks in the expansion mechanism are provided in plurality and are distributed in a cross-symmetrical manner. Under pressure, the sensor element is expanded inside the expansion mechanism to prevent shaking, and the strain beam is deformed under the extrusion of the upper and lower load-bearing columns and squeezes the strain gauge to change the resistance signal.

[0018] Furthermore, the end faces of the abutment blocks and the inner ring of the strain beam that fit together are arc-shaped faces, and a triangular stable structure is formed between two adjacent abutment blocks and the strain beam.

[0019] Furthermore, it also includes a processor, which is equipped with a central control system for controlling the expansion mechanism to expand the sensor element according to the pressure on the sensor element, and the central control system is equipped with a sensor module, a data processing module, an alarm module and a control module;

[0020] The sensor module includes a pressure unit, which is used to obtain the pressure on the sensor element and generate pressure information;

[0021] The data processing module includes a pressing unit, which is equipped with a comparison strategy and a stretching strategy. The comparison strategy is used to obtain pressure information, compare it with a pressure threshold and generate control information, and transmit the control information to the control module to control the telescopic part.

[0022] Furthermore, the specific steps of controlling the telescopic component based on the comparison strategy include:

[0023] If the comparison strategy detects that the pressure on the sensor element is less than or equal to the pressure threshold, a power-on command is generated to control the telescopic part to descend. When the telescopic part descends, it applies pressure to the mounting plate and rotates the mounting plate, thereby driving multiple abutment blocks to stretch the sensor element outward to fix the position of the sensor element and eliminate the coupling force of the sensor element in the mounting sleeve.

[0024] Furthermore, the specific steps of controlling the alarm module based on the comparison strategy include:

[0025] If the comparison strategy detects that the pressure on the sensor element is greater than the pressure threshold, an alarm instruction is generated, and the alarm module is controlled to alarm based on the alarm instruction to remind the staff to perform maintenance.

[0026] Compared with the prior art, the present invention has the following significant effects:

[0027] 1. This device significantly enhances the stability of the sensor element through the innovative design of the expansion mechanism. When subjected to external pressure, the sensor element can be expanded evenly and stably, effectively eliminating the shaking and coupling force in the installation sleeve, thereby greatly improving the accuracy and stability of the measurement. In addition, the triangular stable structure formed by the arc-shaped abutment block and the inner circle of the strain beam not only optimizes the pressure distribution, but also protects the sensor element from local damage, further extending the service life and ensuring high-precision long-term measurement.

[0028] Second, the central control system with integrated processor is another highlight of the device. The system can intelligently control the action of the expansion mechanism in real time according to the pressure on the sensor element, realizing automatic management. When the pressure is within the preset range, the system automatically expands the sensor element to fix its position; when the pressure is abnormal, the alarm mechanism is immediately triggered to remind the staff to repair it in time. This intelligent early warning and management mode not only improves work efficiency, but also significantly enhances the safety and reliability of the system.

[0029] 3. The design of this device fully considers the convenience of installation and maintainability. The fixing process of the load-bearing plate is simplified through positioning components such as U-shaped grooves and base grooves, while the positioning holes and positioning pins on the strain gauge mounting block greatly facilitate the installation and replacement of the strain gauge. In addition, the compact structural design enables the device to achieve efficient use of space while maintaining strong functionality, making it very suitable for installation and use in limited spaces. This optimized design not only reduces costs, but also improves the overall aesthetics and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an axonometric diagram of the high temperature resistant reaction device of the present invention;

[0031] Figure 2 For the present invention Figure 1 Schematic diagram of local explosion structure;

[0032] Figure 3 for Figure 1 A schematic diagram of the front view structure of

[0033] Figure 4 for Figure 1 Schematic diagram of the explosion structure;

[0034] Figure 5 This is an axial schematic diagram of the sensor element in the present invention;

[0035] Figure 6 This is a schematic diagram of the axial structure of the support assembly in the present invention;

[0036] Figure 7 for Figure 6 Schematic diagram of the structure of the middle part;

[0037] Figure 8 This is a flow chart of the central control system of the present invention;

[0038] In the figure: 100, positioning and mounting mechanism; 101, bearing plate; 102, electrical port; 103, mounting sleeve; 104, bolt; 105, strain gauge mounting block; 106, base groove; 107, U-shaped groove; 200, expansion mechanism; 201, top plate; 202, telescopic member; 203, bottom plate; 204, mounting cylinder; 2041, mounting plate; 2042, connecting rod; 2043, abutment block; 2044, spring; 300, sensor element; 301, strain beam; 302, upper bearing column; 303, lower bearing column. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] Embodiment 1:

[0041] See also Figure 1-Figure 8 This embodiment provides a ring sensor, including: a sensor element 300, and further including:

[0042] The positioning and installation mechanism 100 includes a bearing plate 101, an electrical interface 102, a mounting sleeve 103 and a positioning assembly;

[0043] The mounting sleeve 103 is mounted on the carrier plate 101 and is used to form a mounting frame supporting the sensor element 300. The electrical connection port 102 is mounted on the side wall of the carrier plate 101 and is used to transmit the electrical signal in the device through the connection wire. The mounting frame and the electrical connection interface are connected. The carrier plate 101 is used as a base, the mounting sleeve 103 forms a frame supporting the sensor element 300, and the electrical connection port 102 is used to output the signal.

[0044] The spreading mechanism 200 includes a top plate 201, a telescopic member 202, a bottom plate 203 and a spreading assembly;

[0045] The top plate 201 and the bottom plate 203 are respectively mounted on the mounting sleeve 103 and the bearing plate 101 and are used to form a closed space for the positioning and mounting mechanism 100. The expansion assembly is mounted on the bottom plate 203 and is used to assist the sensor element 300 in reducing the coupling force when it is squeezed. The telescopic member 202 is mounted on the top plate 201 and is used to cooperate with the expansion assembly to expand. The positioning and mounting mechanism 100 is closed by the top plate 201 and the bottom plate 203 to form a protective space. The expansion assembly is composed of a mounting plate 2041, a connecting rod 2042 and an abutment block 2043 on the mounting tube 204. When the sensor is under pressure, the strain beam 301 can be supported and limited by the action of the spring 2044 and the telescopic member 202 to prevent it from shaking.

[0046] The sensor element 300 includes a strain beam 301, an upper end surface array of the strain beam 301 is provided with an upper bearing column 302 for applying pressure to the strain beam 301, and a lower end surface array of the strain beam 301 is provided with a lower bearing column 303 for cooperating with the upper bearing column 302 to apply pressure to the strain beam 301. The strain beam 301 is a core component, and an upper bearing column 302 and a lower bearing column 303 are provided at its upper end and lower end respectively, for converting external pressure into deformation of the strain beam 301.

[0047] The positioning assembly includes a U-shaped groove 107 and a base groove 106 arranged in an array on the carrier plate 101 for fixing the carrier plate 101;

[0048] It also includes a strain gauge mounting block 105. A mounting groove is provided on the inner wall of the mounting sleeve 103. The strain gauge mounting block 105 is located in the mounting groove and fixedly mounted on the mounting sleeve 103 by bolts 104. A positioning hole for mounting the strain gauge is provided on one side of the strain gauge mounting block 105. The strain gauge is mounted on the strain gauge mounting block 105 and connected to the lead wire through the pad. When the strain beam 301 is deformed and contacts the strain gauge, the resistance value of the strain gauge changes, and this change is transmitted through the electrical interface 102.

[0049] The expansion assembly includes a mounting tube 204 mounted on a bottom plate 203, a mounting plate 2041 is arranged in an array on the mounting tube 204, the mounting plate 2041 is hinged to the mounting tube 204, one end of the mounting plate 2041 is hinged to a connecting rod 2042, the other end of the connecting rod 2042 is hinged to an abutment block 2043, and the mounting tube 204 is also provided with a spring 2044 for resetting the mounting tube 204;

[0050] The telescopic member 202 and the mounting plate 2041 correspond to each other one by one and are located on the same vertical axis.

[0051] It also includes a strain gauge, which is installed on the strain gauge mounting block 105 through the cooperation of the positioning hole and the positioning pin. The strain gauge is provided with a pad, and the lead wire of the strain gauge is welded on the pad on the strain gauge.

[0052] Under normal conditions, a gap is left between the sensor element 300 and the strain gauge, wherein the strain gauge mounting block 105 in the positioning and mounting mechanism 100 and the abutment block 2043 in the expansion mechanism 200 are both provided with a plurality of them and are distributed in a cross-symmetrical manner. Under pressure, the sensor element 300 is expanded inside the expansion mechanism 200 to prevent shaking, and the strain beam 301 is deformed under the compression of the upper bearing column 302 and the lower bearing column 303 and compresses the strain gauge to change the resistance signal.

[0053] The end surfaces of the abutment blocks 2043 and the inner circle of the strain beam 301 are arc-shaped surfaces, and a triangular stable structure is formed between two adjacent abutment blocks 2043 and the strain beam 301 .

[0054] As can be seen from the above, the device is a pressure sensor, and its core working principle is based on the deformation of the strain beam 301 when it is subjected to pressure, thereby changing the resistance value of the strain gauge in contact with it, and indirectly measuring the applied pressure by measuring this resistance change. Under normal conditions, there is a gap between the sensor element 300 and the strain gauge, and no signal output is generated. When external pressure acts on the sensor, the upper bearing column 302 and the lower bearing column 303 apply pressure to the strain beam 301, causing it to deform. At the same time, the abutment block 2043 of the support mechanism 200 supports and limits the strain beam 301 under the action of the internal spring 2044 and the telescopic member 202, preventing it from shaking when under pressure, thereby ensuring the accuracy of the measurement. The deformation of the strain beam 301 causes it to contact the strain gauge and exert pressure, thereby changing the resistance value of the strain gauge. This resistance change is transmitted through the electrical port 102 and is further processed and measured as an electrical signal. In summary, the device achieves accurate measurement of external pressure through the design of the mechanical structure, and outputs it in the form of an electrical signal. Through a simple structure, the coupling force between the sensor element 300 in the sensor and the sensor mounting structure is effectively eliminated, thereby enhancing the accuracy of the measurement.

[0055] Embodiment 2:

[0056] Based on Example 1, please refer to Figure 1-Figure 8 ,

[0057] Replacement of telescopic member 202:

[0058] Original component: telescopic part 202 (such as electric push rod or cylinder)

[0059] Replacement components: Linear actuators (such as linear motors or screw drives)

[0060] Reasons to replace: Linear actuators can provide smoother, more precise motion control and in some cases may be more compact than traditional pneumatic cylinders or electric actuators.

[0061] The integrally cast frame replaces the mounting cylinder 204 (made of aluminum alloy or steel).

[0062] Reason for replacement: The one-piece cast frame has higher structural strength and rigidity, can reduce assembly errors between components, and improve overall stability and durability.

[0063] Replacement component: A contact pad made of a polymer elastic material replaces the abutment block 2043 (such as silicone or polyurethane).

[0064] Reason for replacement: The polymer elastic material can provide better buffering and shock absorption effects, reduce the mechanical stress that may be caused by rigid contact, and protect the sensor element 300 from damage.

[0065] When the system is running, the linear brake (replaced telescopic member 202) performs telescopic movement according to the command of the central control system. When the pressure on the sensor element 300 is less than or equal to the preset pressure threshold, the linear brake descends, pushing the mounting plate 2041 to rotate around the hinge point, and then drives the abutment block 2043 (now a polymer elastic material contact pad) to open the sensor element 300 outward through the connecting rod 2042. This action not only fixes the position of the sensor element 300, but also eliminates its coupling force in the mounting sleeve 103.

[0066] When the sensor element 300 is subjected to external pressure, the strain beam 301 is deformed due to the compression of the upper bearing column 302 and the lower bearing column 303. This deformation is then transmitted to the strain gauge mounted on the strain gauge mounting block 105, changing its resistance value, thereby generating a measurable electrical signal.

[0067] If the pressure on the sensor element 300 exceeds a preset pressure threshold, the central control system will activate the alarm module to remind the staff to perform maintenance.

[0068] The replaced device uses the following mechanical principle:

[0069] Lever principle: The mounting plate 2041, as a part of the lever, rotates around the hinge point under the push of the linear brake, thereby realizing the expansion action.

[0070] Elastic deformation: The contact pad made of polymer elastic material undergoes elastic deformation when subjected to pressure, thereby providing necessary support and cushioning for the sensor element 300 .

[0071] Strain-resistance effect: The strain gauge changes its resistance value according to the deformation of the strain beam 301, which is the basic principle of the sensor.

[0072] Embodiment three:

[0073] Based on the first and second embodiments, please refer to Figure 8 ,

[0074] It also includes a processor, which is equipped with a central control system for controlling the expansion mechanism 200 to expand the sensor element 300 according to the pressure on the sensor element 300, and the central control system is equipped with a sensor module, a data processing module, an alarm module and a control module;

[0075] The sensor module includes a pressure unit, which is used to obtain the pressure on the sensor element 300 and generate pressure information;

[0076] The data processing module includes a pressing unit, which is equipped with a comparison strategy and a stretching strategy. The comparison strategy is used to obtain pressure information, compare it with a pressure threshold and generate control information, which is then transmitted to the control module to control the telescopic member 202 based on the control information.

[0077] The specific steps of controlling the telescopic component 202 based on the comparison strategy include:

[0078] If the comparison strategy detects that the pressure applied to the sensor element 300 is less than or equal to the pressure threshold, a power-on command is generated to control the telescopic member 202 to descend. When the telescopic member 202 descends, it applies pressure to the mounting plate 2041 and causes the mounting plate 2041 to rotate, thereby driving the multiple abutment blocks 2043 to expand the sensor element 300 outward, so as to fix the position of the sensor element 300 and eliminate the coupling force of the sensor element 300 in the mounting sleeve 103.

[0079] The specific steps of controlling the alarm module based on the comparison strategy include:

[0080] If the comparison strategy detects that the pressure on the sensor element 300 is greater than the pressure threshold, an alarm instruction is generated, and the alarm module is controlled to alarm based on the alarm instruction to remind the staff to perform maintenance. The processor is equipped with a central control system for controlling the expansion mechanism 200 according to the pressure on the sensor element 300. The central control system includes four main modules: a sensor module, a data processing module, an alarm module and a control module. The sensor module is used to monitor the pressure on the sensor element 300 and generate pressure information. The data processing module receives this information and compares it with the preset pressure threshold, and generates corresponding control information based on the comparison result. These control information are then transmitted to the control module to control the action of the telescopic member 202. The alarm module sounds an alarm when abnormal pressure is detected to remind the staff to perform maintenance.

[0081] As can be seen from the above, the propping mechanism 200 includes components such as a telescopic member 202 and a mounting plate 2041. When the comparison strategy of the data processing module detects that the pressure on the sensor element 300 is less than or equal to the pressure threshold, a power-on instruction will be generated to control the telescopic member 202 to descend. When the telescopic member 202 descends, pressure will be applied to the mounting plate 2041 to rotate it. The rotation of the mounting plate 2041 will drive the multiple abutment blocks 2043 to move outward, thereby propping up the sensor element 300. In this way, the position of the sensor element 300 can be fixed and its coupling force in the mounting sleeve 103 can be eliminated. If the comparison strategy detects that the pressure on the sensor element 300 is greater than the pressure threshold, an alarm instruction will be generated to control the alarm module to sound an alarm and remind the staff to perform maintenance.

[0082] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the system is only a logical function division. There may be other division methods in actual implementation. For example, multiple systems or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0083] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A ring sensor, characterized in that: include: The sensor element (300) further comprises: A positioning and installation mechanism (100) comprises a bearing plate (101), an electrical connection port (102), a mounting sleeve (103) and a positioning assembly; The mounting sleeve (103) is mounted on the carrier plate (101) and is used to form a mounting frame for supporting the sensor element (300); the electrical connection port (102) is mounted on a side wall of the carrier plate (101) and is used to transmit electrical signals in the device through electrical connection wires; The expansion mechanism (200) comprises a top plate (201), a telescopic member (202), a bottom plate (203) and an expansion assembly; The top plate (201) and the bottom plate (203) are respectively mounted on the mounting sleeve (103) and the bearing plate (101) and are used to form a closed space for the positioning mounting mechanism (100); the expansion assembly is mounted on the bottom plate (203) and is used to assist the sensor element (300) in reducing the coupling force when it is squeezed; the telescopic member (202) is mounted on the top plate (201) and is used to cooperate with the expansion assembly to expand.

2. The annular sensor according to claim 1, characterized in that: The sensor element (300) comprises a strain beam (301), an upper end surface array of the strain beam (301) is provided with an upper load-bearing column (302) for applying pressure to the strain beam (301), and a lower end surface array of the strain beam (301) is provided with a lower load-bearing column (303) for cooperating with the upper load-bearing column (302) to apply pressure to the strain beam (301).

3. The annular sensor according to claim 2, characterized in that: The positioning assembly comprises a U-shaped groove (107) and a base groove (106) arranged in an array on the carrier plate (101) and used for fixing the carrier plate (101); It also includes a strain gauge mounting block (105), wherein a mounting groove is provided on the inner wall of the mounting sleeve (103), the strain gauge mounting block (105) is located in the mounting groove and is fixedly mounted on the mounting sleeve (103) by means of bolts (104), and a positioning hole for mounting the strain gauge is provided on one side of the strain gauge mounting block (105).

4. The annular sensor according to claim 2, characterized in that: The expansion assembly comprises a mounting tube (204) mounted on a bottom plate (203); a mounting plate (2041) is arranged in an array on the mounting tube (204); the mounting plate (2041) is hingedly connected to the mounting tube (204); a connecting rod (2042) is hingedly provided at one end of the mounting plate (2041); an abutment block (2043) is hingedly provided at the other end of the connecting rod (2042); and a spring (2044) for resetting the mounting tube (204) is also provided on the mounting tube (204); The telescopic member (202) and the mounting plate (2041) correspond one to one and are located on the same vertical axis.

5. The annular sensor according to claim 4, characterized in that: It also includes a strain gauge, which is installed on a strain gauge installation block (105) through the cooperation of a positioning hole and a positioning pin, and a welding pad is provided on the strain gauge, and the lead wire of the strain gauge is welded on the welding pad on the strain gauge.

6. The annular sensor according to claim 1, characterized in that: Under normal conditions, a gap is left between the sensor element (300) and the strain gauge, wherein the strain gauge mounting blocks (105) in the positioning and mounting mechanism (100) and the abutment blocks (2043) in the expansion mechanism (200) are both provided with a plurality of blocks and are distributed in a cross-symmetrical manner. Under a compressed state, the sensor element (300) is expanded inside the expansion mechanism (200) to prevent shaking, and the strain beam (301) is deformed under the compression of the upper bearing column (302) and the lower bearing column (303), and compresses the strain gauge to change the resistance signal.

7. The annular sensor according to claim 6, characterized in that: The end faces of the abutment blocks (2043) and the inner circles of the strain beams (301) that fit together are arc-shaped faces, and a triangular stable structure is formed between two adjacent abutment blocks (2043) and the strain beams (301).

8. The annular sensor according to claim 1, characterized in that: It also includes a processor, the processor is equipped with a central control system for controlling the expansion mechanism (200) to expand the sensor element (300) according to the pressure on the sensor element (300), and the central control system is equipped with a sensor module, a data processing module, an alarm module and a control module; The sensor module comprises a pressure-receiving unit, and the pressure-receiving unit is used to obtain the pressure magnitude on the sensor element (300) and generate pressure information; The data processing module includes a pressing unit, which is equipped with a comparison strategy and a stretching strategy. The comparison strategy is used to obtain pressure information, compare it with a pressure threshold and generate control information, and transmit the control information to the control module to control the telescopic member (202).

9. The annular sensor according to claim 8, characterized in that: The specific steps of controlling the telescopic component (202) based on the comparison strategy include: If the comparison strategy detects that the pressure applied to the sensor element (300) is less than or equal to the pressure threshold, a power-on instruction is generated to control the telescopic member (202) to descend. When the telescopic member (202) descends, pressure is applied to the mounting plate (2041) to cause the mounting plate (2041) to rotate, thereby driving the plurality of abutment blocks (2043) to spread the sensor element (300) outward, thereby fixing the position of the sensor element (300) and eliminating the coupling force of the sensor element (300) in the mounting sleeve (103).

10. The annular sensor according to claim 8, characterized in that: The specific steps of controlling the alarm module based on the comparison strategy include: If the comparison strategy detects that the pressure on the sensor element (300) is greater than the pressure threshold, an alarm instruction is generated, and the alarm module is controlled to sound an alarm based on the alarm instruction, so as to remind the staff to carry out maintenance.

Images