A detection device for identifying valve opening and closing degree offset

Abstract

The present application discloses a detection device for identifying the offset of valve opening and closing, which relates to the field of valve detection technology, including a magnetic angle sensor and a first mounting seat installed at the end face of the valve body in the valve, a driven ring sleeve which is rotatably provided on the first mounting seat and is plugged into the valve head in the valve, and a detection end of the magnetic angle sensor is arranged on the inner side of the driven ring sleeve and corresponds to the axial direction of the valve head end face. The technical advantages of the present application are: by installing a magnetic angle sensor, the screwing angle of the valve head is monitored in real time to record the mechanical wear of the valve head, thereby realizing the prediction of the service life of the individual or the valve head of this model, so as to greatly save the subsequent maintenance cost; by the cooperation of the driven ring sleeve and the screwing part, the valve head is directly driven, and at the same time, a central position is reserved for the layout of the magnetic angle sensor and the preset monitoring channel thereof; by adding a forced return component, when the valve head is not maintained in time by manual operation, the valve head is forcibly closed by the magnetic drive of the electromagnet.

Description

Technical Field

[0001] The present application relates to the field of valve detection technology, and in particular to a detection device for identifying valve opening and closing degree offset. Background Art

[0002] An explosion-proof mechanical switch is a safety control device designed for flammable and explosive environments. It complies with national and international explosion-proof standards (such as IECEx, ATEX, etc.) to ensure that when used in hazardous areas containing explosive gases, steam or dust, it can effectively prevent the electric sparks or thermal effects generated during the switch operation from igniting the surrounding medium, thereby avoiding the occurrence of explosion accidents. The core technology of this type of switch lies in its special explosion-proof shell design and internal structure. The shell of the explosion-proof switch is strong enough to withstand internal explosions without breaking, and can prevent the flame from spreading to the external explosive environment. When a short circuit or other fault occurs in the internal circuit of the switch and causes an explosion, the shell can limit the explosion energy inside to ensure the safety of the external environment. The operation mode of explosion-proof mechanical switches is diverse, including rotary (0° to 90° rotary switch), push-pull type, button type, etc., to meet the needs of different application scenarios. While ensuring safety, these switches also focus on ease of operation and durability. They are essential safety components in industries such as petroleum, chemical, mineral mining, and grain processing. They play an irreplaceable role in ensuring the life safety of operators and the stable operation of production facilities.

[0003] After long-term high-intensity use, mechanical switches will face the challenge of mechanical wear, which is directly related to their reliability and safety. The design of traditional explosion-proof mechanical switches usually focuses on flameproof performance and durability, but under long-term operation, slight mechanical wear will gradually accumulate, causing the switch's opening and closing positions to shift. For example, the initial setting of the "open" state shifts from the ideal 0° to 0.1° or 0.5°, and the "closed" state may shift from 90° to 85°, 89° or 88°, etc. This unexpected displacement not only affects the normal function of the switch, but may also bury safety hazards. At present, there is still a lack of effective technical means for wear monitoring and predictive maintenance of explosion-proof mechanical switches in the industry. Due to the lack of real-time monitoring and accurate statistics of the wear status of the switch, it is difficult for users to predict in advance when the switch will fail due to wear. Often, they can only take countermeasures after the switch fails completely, which often causes production interruption, equipment damage and even safety accidents. The consequences not only involve high economic costs, but also concern personnel safety and environmental protection. Utility Model Content

[0004] The present invention provides a detection device for identifying the opening and closing degree offset of a valve, and the specific implementation method is as follows:

[0005] A detection device for identifying valve opening and closing degree offset, characterized by comprising:

[0006] A first mounting seat is installed on the end face of the valve body in the valve, and a driven ring sleeve is rotatably provided on the first mounting seat and plugged with the valve head in the valve;

[0007] The detection end of the magnetic angle sensor is arranged on the inner side of the driven ring sleeve and corresponds to the axial direction of the valve head end face. The valve head is opened and closed by rotating the driven ring sleeve. During this period, the opening and closing degree offset of the valve head is monitored in real time by the magnetic angle sensor.

[0008] Based on the above technical solutions, the valve head is directly driven by the driven ring sleeve, and the center position is used for the installation and layout of the magnetic angle sensor and the reservation of the monitoring channel; the magnetic angle sensor is used to monitor the mechanical wear of the valve head in real time, and the long-term collection of the screw angle data can facilitate the manual evaluation of the health status of the valve head in advance. The magnetic angle sensor determines the position and movement trajectory of the valve head by detecting the change of the magnetic field when the valve head moves. With the continuous switching operation of the valve head, its internal mechanical parts will gradually wear, which will cause the force, speed, angle and other parameters of the valve head to change. The magnetic angle sensor can capture these subtle differences and record the working status data of the valve head in real time; subsequently, with the help of data remote transmission and cloud servers, the conventional existing application algorithms are used to analyze the wear degree and trend of the valve head. By comparing the data of the valve head in the new and old states, its wear rate and remaining service life can be evaluated.

[0009] Preferably, the device further comprises a second mounting seat arranged at the outer end surface of the first mounting seat, wherein a screwing member and a magnetic angle sensor are arranged in the second mounting seat.

[0010] Preferably, the screwing member includes a plurality of angled rotating plates rotatably connected to the inner side of the second mounting seat, and the outer ends of the angled rotating plates extend out of the second mounting seat to form an annular knob.

[0011] Preferably, the first mounting seat and the valve body and the first mounting seat and the second mounting seat are both connected by bolts.

[0012] Based on the above technical solution, the mutual avoidance installation of the magnetic angle sensor and the screw part is realized through the second mounting seat, and a C-shaped connecting frame can be set between the magnetic angle sensor and the second mounting seat, that is, the fixed installation of the magnetic angle sensor is realized without affecting the screwing of the screw part.

[0013] Preferably, the driven ring sleeve comprises a sleeve and a fixing ring which are integrally formed, and the inner side of the sleeve is clamped with the valve head.

[0014] Preferably, the end of the fixing ring is clamped with the inner end of the angled rotating plate, and a concave-convex structure is formed between the two.

[0015] Based on the above technical solution, through the mutual abutment between the fixing ring and the angled rotating plate, the fixing ring can be firmly connected to the angled rotating plate by screws, snaps or a concave-convex structure, ensuring that the two form a solid whole, and can achieve synchronous rotation relative to the second mounting seat and the first mounting seat; the angled design can achieve avoidance of the magnetic angle sensor.

[0016] Preferably, it further comprises a pair of forced return components arranged in opposition to each other and disposed on the first mounting seat, and the two components are arranged in opposite directions.

[0017] Preferably, the forced return assembly comprises a sliding plate arranged to slide tangentially along the sleeve, and an electromagnet magnetically matched with the sliding plate is provided at the end of the sliding plate.

[0018] Preferably, the sleeve is configured to be sawtooth-shaped along its circumference, and the sliding plate is movably engaged with the sawtooth-shaped along its tangential direction via a rack.

[0019] Based on the above technical solution, the sliding plate is set to be a magnetic metal or a permanent magnet, and the magnetic attraction or magnetic separation of the sliding plate is achieved by energizing the electromagnet; when the forced return component does not work, no meshing effect is produced between the rack and the serrations.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] 1. The utility model monitors the screwing angle of the valve head in real time by installing a magnetic angle sensor to record the mechanical wear of the valve head, thereby predicting the service life of the individual or model valve head, thereby greatly saving subsequent maintenance costs;

[0022] 2. The utility model realizes direct driving of the valve head through the cooperation of the driven ring sleeve and the screwing member, and at the same time reserves a central position for the layout of the magnetic angle sensor and the preset of its monitoring channel;

[0023] 3. The utility model has a simple structure. By adding a forced return component, when the valve head is not maintained in time by humans, and the valve head is at the offset limit value and cannot achieve the actual opening and closing effect, the valve head is forcibly closed through the magnetic drive of the electromagnet and the meshing effect between the sliding plate and the sleeve, effectively avoiding accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the explosion structure of the utility model Figure 1 ;

[0026] Figure 3 It is a cross-sectional view of the front view structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the explosion structure of the utility model Figure 2 ;

[0028] Figure 5 It is an exploded schematic diagram of the screwing part, the magnetic angle sensor and the driven ring sleeve in the utility model;

[0029] Figure 6 It is a cross-sectional view of the structure of the utility model after the forced return component is installed.

[0030] Description of reference numerals:

[0031] 1. Valve, 2. First mounting seat, 3. Bolt, 4. Second mounting seat, 5. Screw, 6. Magnetic angle sensor, 7. Driven ring sleeve, 8. Forced return assembly,

[0032] 101. valve body, 102. valve head, 103. positioning screw hole, 201. first cover body, 202. positioning through hole, 501. annular knob, 502. angled rotating plate, 503. limiting protrusion, 701. sleeve, 702. fixing ring, 703. limiting groove, 704. serrated, 801. rack, 802. sliding plate, 803. electromagnet. DETAILED DESCRIPTION

[0033] The following describes the specific implementation of the utility model in conjunction with the accompanying drawings and embodiments:

[0034] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0035] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The embodiment of the present application discloses a detection device for identifying the offset of valve opening and closing degree.

[0038] Example 1

[0039] Reference Figures 1 to 5The present embodiment discloses a detection device for identifying the opening and closing degree offset of a valve, comprising a magnetic angle sensor 6, a first mounting seat 2 installed at the end face of a valve body 101 in a valve 1, and a second mounting seat 4 arranged at the outer end face of the first mounting seat 2, a driven ring sleeve 7 which is rotatably provided on the first mounting seat 2 and is plugged into a valve head 102 in the valve 1, the detection end of the magnetic angle sensor 6 in the present structure is arranged on the inner side of the driven ring sleeve 7 and corresponds axially to the end face of the valve head 102, the valve head 102 is opened and closed by rotating the driven ring sleeve 7, during which the opening and closing degree offset of the valve head 102 is monitored in real time by the magnetic angle sensor 6, and a screwing member 5 and a magnetic angle sensor 6 are arranged in the second mounting seat 4.

[0040] The screwing member 5 includes a plurality of angled rotating plates 502 rotatably connected to the inner side of the second mounting seat 4, and the outer end thereof passes through the second mounting seat 4 to form an annular knob 501. The first mounting seat 2 and the valve body 101 and the first mounting seat 2 and the second mounting seat 4 are connected by bolts 3, that is, a positioning through hole 202 is opened on the first mounting seat 2, and the bolt 3 passes through the positioning screw hole 103 on the end face of the valve body 101 and is threadedly connected.

[0041] The driven ring sleeve 7 includes a sleeve 701 and a fixed ring 702 which are integrated into one body, and the inner side of the sleeve 701 is clamped with the valve head 102. In this structure, the end of the fixed ring 702 is clamped with the inner end of the angled rotating plate 502. A limiting groove 703 is circumferentially provided at the end of the fixed ring 702, and a limiting protrusion 503 which is clamped with the limiting groove 703 is provided at the end of the angled rotating plate 502.

[0042] The specific implementation process is: daily screwing of the screw part 5, the screw part 5, the driven ring sleeve 7 and the valve head 102 rotate synchronously, thereby realizing the opening and closing of the valve 1; during this period, the magnetic angle sensor 6 always axially detects the rotation angle of the valve head 102 and records data for a long time; after the user records the data, the data is analyzed, and the expected service life of the valve head 102 is estimated, and then processing is performed in advance to prevent the valve head 102 from complete failure.

[0043] Example 2

[0044] Reference Figures 1 to 6 Based on the above embodiments, the present embodiment further discloses a detection device for identifying the valve opening and closing degree offset, and also includes a pair of forced return components 8 arranged in opposition on the first mounting seat 2, and the arrangement directions of the two are opposite. In the present structure, the forced return component 8 includes a sliding plate 802 arranged tangentially along the sleeve 701, and an electromagnet 803 is provided at its end to magnetically cooperate with the sliding plate 802.

[0045] The sleeve 701 is provided with a sawtooth shape 704 along its circumference, and the sliding plate 802 is movably meshed with the sawtooth shape 704 along its tangential direction through the rack 801 .

[0046] Many other changes and modifications can be made without departing from the concept and scope of the utility model. It should be understood that the utility model is not limited to a specific embodiment, and the scope of the utility model is defined by the appended claims.

Claims

1. A detection device for identifying valve opening and closing degree offset, characterized in that: include: A first mounting seat (2) is mounted on the end surface of a valve body (101) in the valve (1), wherein the first mounting seat (2) is rotatably provided with a driven ring sleeve (7) plugged into a valve head (102) in the valve (1); A magnetic angle sensor (6) has a detection end disposed on the inner side of the driven ring sleeve (7) and axially corresponding to the end face of the valve head (102). The valve head (102) is opened and closed by rotating the driven ring sleeve (7), during which the opening and closing degree offset of the valve head (102) is monitored in real time by the magnetic angle sensor (6).

2. A detection device for identifying valve opening and closing degree offset according to claim 1, characterized in that: It also comprises a second mounting seat (4) arranged at the outer end surface of the first mounting seat (2), wherein a screwing member (5) and the magnetic angle sensor (6) are arranged in the second mounting seat (4).

3. A detection device for identifying valve opening and closing degree offset according to claim 2, characterized in that: The screwing member (5) comprises a plurality of angled rotating plates (502) rotatably connected to the inner side of the second mounting seat (4), and the outer end of the plates passes through the second mounting seat (4) to form an annular knob (501).

4. A detection device for identifying valve opening and closing degree offset according to claim 3, characterized in that: The driven ring sleeve (7) comprises a sleeve (701) and a fixing ring (702) which are integrally formed, and the inner side of the sleeve (701) is clamped with the valve head (102).

5. A detection device for identifying valve opening and closing degree offset according to claim 4, characterized in that: The end of the fixing ring (702) is clamped with the inner end of the angled rotating plate (502), and a concave-convex structure is formed between the two.

6. A detection device for identifying valve opening and closing degree offset according to claim 2, characterized in that: The first mounting seat (2) and the valve body (101) and the first mounting seat (2) and the second mounting seat (4) are both connected via bolts (3).

7. A detection device for identifying valve opening and closing degree offset according to claim 4, characterized in that: It also includes a pair of forced return components (8) arranged in an opposing manner and disposed on the first mounting seat (2), and the two components are arranged in opposite directions.

8. A detection device for identifying valve opening and closing degree offset according to claim 7, characterized in that: The forced return assembly (8) comprises a sliding plate (802) arranged to slide tangentially along the sleeve (701), and an electromagnet (803) magnetically matched with the sliding plate (802) is provided at the end thereof.

9. A detection device for identifying valve opening and closing degree offset according to claim 8, characterized in that: The sleeve (701) is provided with a sawtooth shape (704) along its circumference, and the sliding plate (802) is movably engaged with the sawtooth shape (704) along its tangential direction via the rack (801).

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