Pressure sensor

Abstract

The invention provides a pressure sensor which comprises a shell, a hexagonal end is installed below the shell, a threaded opening is formed in the hexagonal end, a rotating table is rotationally arranged in the shell, a circular ring is installed on the rotating table, and an avoiding groove is formed between the rotating table and the circular ring; a plurality of fixing sleeves are installed on the circular ring, and sensor bodies are installed on the fixing sleeves. The driving screw rotates to drive the second gear to move to be meshed with the first gear; the driving rod is driven to rotate to drive the second gear to rotate, the first worm gear drives the rotating table to rotate, the other sensor body is driven to move to the detection station, similarly, the third sensor body can be driven to move to the detection station, whether the detection results of the three sensor bodies are within the error range or not is compared, and if the detection results are within the error range, the detection results are normal. The pressure sensor provided by the invention is convenient for self-inspection so as to deal with the condition of faults or inaccurate measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure sensors, and particularly to a pressure sensor. Background Art

[0002] A pressure sensor is a device or apparatus that can sense a pressure signal and convert the pressure signal into an available output electrical signal according to a certain rule. The pressure sensor is one of the most commonly used sensors in industrial practice and is widely used in various industrial automatic control environments.

[0003] Chinese Patent Application No. 2018209034717 discloses a pressure sensor, which includes a metal shell, a pressure joint, a connector, a pin board, a bonding circuit board and a functional circuit board; the pressure joint is fixed at the first end of the metal shell, and a sensing element electrically connected to the bonding circuit board is provided on the pressure joint. The bonding circuit board is fixed at the end of the pressure joint and forms insulation. The first end of the PIN pin is provided on the pin board and is fixed and electrically connected to the bonding circuit board; the connector is fixed at the second end of the metal shell and is provided with a plurality of connection pins extending into the metal shell, and the functional circuit board is arranged in the metal shell and is electrically connected to the second end of the PIN pin. The functional circuit board is provided with a plurality of connection holes whose positions match those of the respective connection pins, and each connection pin passes through each connection hole one by one and is welded to the functional circuit board.

[0004] When the above pressure sensor is used for a long time, it may malfunction or the measurement may be inaccurate. However, the pressure sensor is not convenient for self-checking to cope with the situation of malfunction or inaccurate measurement. Therefore, we propose a pressure sensor. Summary of the Invention

[0005] The purpose of the present invention is to provide a pressure sensor for the deficiencies of the prior art. By driving the screw rod to rotate, the second gear is driven to move and mesh with the first gear; driving the driving rod to rotate drives the second gear to rotate, and the rotating table is driven to rotate by the first worm wheel, so as to drive another sensor body to move to the detection station. Similarly, the third sensor body can be driven to move to the detection station, and compare whether the results detected by the three sensor bodies are within the error range. If they are within the error range, it is normal, otherwise it is abnormal. The pressure sensor of the present invention is convenient for self-checking to cope with the situation of malfunction or inaccurate measurement.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A pressure sensor includes a housing. A hexagonal end is installed below the housing, and a threaded port is installed on the hexagonal end. A rotating table is rotatably arranged inside the housing, and a ring is installed on the rotating table. An avoidance groove is provided between the rotating table and the ring. A plurality of fixing sleeves are installed on the ring, and a sensor body is installed on the fixing sleeve. A connecting end is provided below the sensor body, and a terminal part is provided above the sensor body. A connecting table is provided inside the housing, and a wire harness is provided on the connecting table. An L-shaped block is installed on the housing, and a flow groove is formed inside the L-shaped block. A plurality of through grooves are formed inside the ring.

[0008] A conductive mechanism is provided inside the connecting table, and a driving mechanism for driving the rotating table to rotate is provided inside the housing.

[0009] The driving mechanism includes: a connecting frame installed on the rotating table; a first worm gear installed on the connecting frame; a box body installed on the housing; a first rotating rod rotatably arranged inside the box body; a first worm installed on the first rotating rod, and the first worm gear and the first worm are meshed; a driving component arranged inside the box body.

[0010] The driving component includes: a fourth rotating rod rotatably arranged inside the box body; a first belt, and the fourth rotating rod and the first rotating rod are connected by the first belt; a first gear installed on the fourth rotating rod; a driving rod rotatably arranged inside the box body; a second gear arranged on the driving rod, and the first gear and the second gear are in corresponding positions.

[0011] The present invention further includes a cooling mechanism arranged inside the housing. The cooling mechanism includes: a rotating shaft, and two rotating shafts are rotatably arranged below the connecting table; an arc-shaped heat dissipation block installed on the rotating shaft; a third gear installed on the rotating shaft, and the two third gears are meshed; a first bevel gear installed on one of the rotating shafts; a rotating shaft rotatably arranged inside the avoidance groove; a second bevel gear installed on the rotating shaft, and the first bevel gear and the second bevel gear are meshed.

[0012] A central shaft is rotatably arranged inside the housing. A third bevel gear is installed at one end of the central shaft, and a fourth bevel gear is installed on the rotating shaft. The third bevel gear and the fourth bevel gear are meshed. A second worm gear is installed at the other end of the central shaft.

[0013] A second rotating rod and a third rotating rod are rotatably arranged inside the box body. A second worm is installed on the second rotating rod, and the second worm gear meshes with the second worm. A sixth gear is installed on the third rotating rod. The sixth gear corresponds to the second gear in position. The second rotating rod and the third rotating rod are connected by the second belt in a transmission manner.

[0014] A screw rod is rotatably arranged inside the box body. A moving plate is threadedly connected to the screw rod. The second gear is rotatably arranged on the moving plate. A convex block is installed on the driving rod. A groove is formed inside the second gear. The convex block slides inside the groove. An avoidance hole is formed inside the moving plate.

[0015] The arc-shaped heat dissipation block includes: a first arc-shaped end; a second arc-shaped end, and the second arc-shaped end is installed on the first arc-shaped end. Flow cavities are formed inside the first arc-shaped end and the second arc-shaped end. A rough surface is arranged inside the flow cavities. A coolant is arranged inside the flow cavities.

[0016] Two arc-shaped grooves are formed inside the shell body. The second arc-shaped end moves inside the arc-shaped grooves. A moving cylinder is installed on the shell body. A through groove is formed inside the moving cylinder. A first magnet is installed on the shell body. A second magnet is installed on the moving cylinder. The second arc-shaped end (4022) is inserted into the through groove (1131).

[0017] A plurality of conductive blocks are installed on the connection table. The conductive blocks are in contact with the terminal parts. The wire harness, the conductive blocks, and the terminal parts are communicated.

[0018] The beneficial effects of the present invention are as follows:

[0019] (1) By driving the screw rod to rotate, the second gear is driven to move and mesh with the first gear. By driving the driving rod to rotate, the second gear is driven to rotate. The rotating table is driven to rotate through the first worm gear, and another sensor body is driven to move to the detection station. Similarly, the third sensor body can be driven to move to the detection station. Whether the results detected by the three sensor bodies are within the error range is compared. If they are within the error range, it is normal; otherwise, it is abnormal. The pressure sensor of the present invention is convenient for self-checking to cope with the situations of malfunction or inaccurate measurement.

[0020] (2) By driving the driving rod to rotate, the second gear is driven to rotate. The sixth gear and the third rotating rod are driven to rotate. The second rotating rod and the second worm are driven to rotate through the second belt, and the second worm gear and the central shaft are driven to rotate. The rotating shaft is driven to rotate through the third bevel gear, the fourth bevel gear, the rotating shaft, the first bevel gear, and the second bevel gear. The two arc-shaped heat dissipation blocks are driven to rotate away from the sensor body. The second arc-shaped end moves inside the arc-shaped groove, so that the two arc-shaped heat dissipation blocks avoid the sensor body, which is convenient for the subsequent self-checking process to operate.

[0021] (3) In the present invention, the liquid ammonia at the bottom of the flow chamber absorbs the heat generated by the sensor body, and the liquid ammonia vaporizes and moves upward to the top of the flow chamber; during the vaporization process, heat is absorbed to dissipate the heat of the sensor body; the gaseous ammonia at the top of the flow chamber encounters the external cold air and liquefies into a liquid, and under the action of gravity, it flows to the bottom of the flow chamber, and so on in a cycle to achieve the heat dissipation and cooling of the sensor body. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the sensor body of the present invention;

[0023] Figure 2 It is a schematic diagram of the first overall structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the second overall structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the explosion structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the moving cylinder of the present invention;

[0027] Figure 6 It is a schematic diagram of the overall cross-section of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the driving mechanism and the cooling mechanism of the present invention;

[0029] Figure 8 It is an enlarged schematic diagram of part A in 7 of the present invention;

[0030] Figure 9 It is a schematic diagram of the structure of the rotating table and the ring of the present invention;

[0031] Figure 10 It is a schematic diagram of the structure of the driving mechanism of the present invention;

[0032] Figure 11 It is a schematic diagram of the structure of the cooling mechanism of the present invention;

[0033] Figure 12 It is a schematic diagram of the structure of the flow groove of the present invention;

[0034] Figure 13 It is a schematic diagram of the structure of the through groove of the present invention;

[0035] Figure 14 It is a schematic diagram of the cross-section of the ring of the present invention;

[0036] Figure 15 It is a schematic diagram of the cross-section of the arc-shaped heat dissipation block of the present invention;

[0037] Figure 16 For the present invention Figure 15Enlarged schematic view at position B in [specific context];

[0038] Figure 17 Schematic diagram of the conductive block structure of the present invention.

[0039] The reference numerals in this application are as follows: 100, housing; 1001, arc-shaped groove; 101, hexagonal end; 102, threaded port; 103, rotating table; 1031, avoidance groove; 104, fixed sleeve; 105, sensor body; 106, connection end; 107, terminal part; 108, connection table; 1081, conductive block; 109, wire harness; 110, L-shaped block; 1101, flow groove; 112, circular ring; 1121, through groove; 113, moving cylinder; 1131, through slot; 114, first magnet; 115, second magnet; 2, conductive mechanism; 3, driving mechanism; 301, connecting frame; 302, first worm gear; 303, box body; 304, first rotating rod; 305, first worm; 31, driving component; 311, first rotating rod; 312, first belt; 313, first gear; 314, driving rod; 3141, convex block; 315, second gear; 3151, groove; 316, second rotating rod; 317, third rotating rod; 318, second worm; 319, sixth gear; 320, screw; 321, moving plate; 3211, avoidance hole; 322, second belt; 4, cooling mechanism; 401, rotating shaft; 402, arc-shaped heat dissipation block; 4021, first arc end; 4022, second arc end; 4023, flow cavity; 4024, rough surface; 403, third gear; 404, first bevel gear; 405, rotating shaft; 406, second bevel gear; 407, central shaft; 408, third bevel gear; 409, fourth bevel gear; 410, second worm gear. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0043] Embodiment 1: As Figures 1 - 17 shown, this embodiment provides a pressure sensor, which includes a housing 100. A hexagonal end 101 is installed below the housing 100, and a threaded port 102 is installed on the hexagonal end 101. A rotating table 103 is rotatably arranged in the housing 100, and a ring 112 is installed on the rotating table 103. An avoidance groove 1031 is provided between the rotating table 103 and the ring 112; A plurality of fixing sleeves 104 are installed on the ring 112, a sensor body 105 is installed on the fixing sleeve 104, a connection end 106 is provided below the sensor body 105, a terminal part 107 is provided above the sensor body 105, a connection table 108 is provided in the housing 100, and a wire harness 109 is provided on the connection table 108; An L-shaped block 110 is installed on the housing 100, a flow groove 1101 is opened in the L-shaped block 110, and a plurality of through grooves 1121 are opened in the ring 112; A conductive mechanism 2 is provided in the connection table 108, and a driving mechanism 3 for driving the rotating table 103 to rotate is provided in the housing 100.

[0044] In this embodiment, the threaded port 102 (with a sealing ring) is installed on the tank body, and the inside of the tank body is communicated with the sensor body 105 (located at the detection station). The sensor body 105 detects the air pressure in the tank body to realize the detection of the pressure sensor;

[0045] It should be noted that: The gas contacts the sensor body 105 on the fixing sleeve 104 through the threaded port 102, the flow groove 1101, and the through groove 1121. The sensor body 105 realizes pressure detection. As Figure 7 shown, the c position in the figure is the detection station. The fixing sleeve 104 is threadedly connected to the connection end 106 of the sensor body 105.

[0046] The driving mechanism 3 includes: a connecting frame 301 which is installed on the rotating table 103; a first worm gear 302 which is installed on the connecting frame 301; a box body 303 which is installed on the housing 100; a first rotating rod 304 which is rotatably arranged in the box body 303; a first worm 305 which is installed on the first rotating rod 304, and the first worm gear 302 and the first worm 305 are meshed; a driving assembly 31 which is arranged in the box body 303.

[0047] The driving assembly 31 includes: a fourth rotating rod 311 which is rotatably arranged in the box body 303; a first belt 312 through which the fourth rotating rod 311 and the first rotating rod 304 are drivingly connected; a first gear 313 which is installed on the fourth rotating rod 311; a driving rod 314 which is rotatably arranged in the box body 303; a second gear 315 which is arranged on the driving rod 314, and the first gear 313 and the second gear 315 are in corresponding positions.

[0048] This embodiment further includes a cooling mechanism 4 which is arranged in the housing 100. The cooling mechanism 4 includes: a rotating shaft 401, and two rotating shafts 401 are rotatably arranged below the connecting table 108; an arc-shaped heat dissipation block 402 which is installed on the rotating shaft 401; a third gear 403 which is installed on the rotating shaft 401, and the two third gears 403 are meshed; a first bevel gear 404 which is installed on one of the rotating shafts 401; a rotating shaft 405 which is rotatably arranged in the avoidance groove 1031; a second bevel gear 406 which is installed on the rotating shaft 405, and the first bevel gear 404 and the second bevel gear 406 are meshed.

[0049] A central shaft 407 is rotatably arranged in the housing 100. A third bevel gear 408 is installed at one end of the central shaft 407, and a fourth bevel gear 409 is installed on the rotating shaft 405. The third bevel gear 408 and the fourth bevel gear 409 are meshed; a second worm gear 410 is installed at the other end of the central shaft 407.

[0050] A second rotating rod 316 and a third rotating rod 317 are rotatably arranged in the box body 303. A second worm 318 is installed on the second rotating rod 316, and the second worm gear 410 and the second worm 318 are meshed; a sixth gear 319 is installed on the third rotating rod 317, and the sixth gear 319 and the second gear 315 are in opposite positions, and the second rotating rod 316 and the third rotating rod 317 are drivingly connected through a second belt 322.

[0051] A screw rod 320 is rotatably arranged inside the box body 303. A moving plate 321 is threadedly connected to the screw rod 320. A second gear 315 is rotatably arranged on the moving plate 321. A convex block 3141 is installed on the driving rod 314. A groove 3151 is formed inside the second gear 315. The convex block 3141 slides inside the groove 3151. An avoidance hole 3211 is formed inside the moving plate 321. One end of the screw rod 320 and the driving rod 314 is provided with a slotted crosshead.

[0052] The arc-shaped heat dissipation block 402 includes: a first arc-shaped end 4021; a second arc-shaped end 4022, and the second arc-shaped end 4022 is installed on the first arc-shaped end 4021; a flow cavity 4023 is formed inside the first arc-shaped end 4021 and the second arc-shaped end 4022. A rough surface 4024 is arranged inside the flow cavity 4023. A coolant is arranged inside the flow cavity 4023, and the coolant is preferably liquid ammonia.

[0053] Two arc-shaped grooves 1001 are formed inside the housing 100. The second arc-shaped end 4022 moves inside the arc-shaped groove 1001. A moving cylinder 113 is installed on the housing 100. A through groove 1131 is formed inside the moving cylinder 113. A first magnet 114 is installed on the housing 100. A second magnet 115 is installed on the moving cylinder 113. The second arc-shaped end 4022 is inserted into the through groove 1131.

[0054] In this embodiment, in the initial state, the arc-shaped heat dissipation block 402 is clamped outside the sensor body 105 (at the detection station). The liquid ammonia at the bottom of the flow cavity 4023 absorbs the heat generated by the sensor body 105, and the liquid ammonia vaporizes and moves upward to the top of the flow cavity 4023;

[0055] During the vaporization process, heat is absorbed to dissipate heat from the sensor body 105; the gaseous ammonia at the top of the flow cavity 4023 liquefies into a liquid when it encounters the cold air outside, and flows to the bottom of the flow cavity 4023 under the action of gravity, and so on in a cycle to realize the heat dissipation and cooling of the sensor body 105.

[0056] In this embodiment, in the initial state as Figure 3 shown, the second arc-shaped end 4022 is inserted into the through groove 1131, so that the top of the second arc-shaped end 4022 is in contact with the outside air (for cooling and heat dissipation). Move the moving cylinder 113 upward. The first magnet 114 adsorbs the second magnet 115 to limit the moving cylinder 113, and the second arc-shaped end 4022 leaves the through groove 1131;

[0057] An electric screwdriver is inserted into the slotted crosshead of the screw rod 320 to drive the screw rod 320 to rotate. According to the principle of screw drive, the moving plate 321 is driven to move, driving the second gear 315 to move and mesh with the sixth gear 319;

[0058] The electric flat screwdriver is inserted into the flat slot of the drive rod 314 to drive the drive rod 314 to rotate, driving the second gear 315 to rotate, driving the sixth gear 319 and the third rotating rod 317 to rotate, driving the second rotating rod 316 and the second worm 318 to rotate through the second belt 322, driving the second worm gear 410 and the central shaft 407 to rotate, and driving the rotating shaft 401 to rotate through the third bevel gear 408, the fourth bevel gear 409, the rotating shaft 405, the first bevel gear 404, and the second bevel gear 406, driving the two arc-shaped heat dissipation blocks 402 to rotate away from the sensor body 105, and the second arc end 4022 moves in the arc slot 1001, so that the two arc-shaped heat dissipation blocks 402 avoid the sensor body 105, facilitating the subsequent self-checking process to run.

[0059] In this embodiment, the electric flat screwdriver is inserted into the flat slot of the screw 320 to drive the screw 320 to rotate. According to the principle of screw drive, the second gear 315 is driven to move and mesh with the first gear 313.

[0060] The electric flat screwdriver is inserted into the flat slot of the drive rod 314 to drive the drive rod 314 to rotate, driving the second gear 315 to rotate, driving the first gear 313 and the fourth rotating rod 311 to rotate, driving the first rotating rod 304 and the first worm 305 to rotate through the first belt 312, driving the rotating table 103 to rotate through the first worm gear 302, driving another sensor body 105 to move to the detection station (the arc-shaped heat dissipation block 402 avoids and will not interfere with the movement of the sensor body 105). Similarly, the third sensor body 105 can be driven to move to the detection station, and compare whether the detection results of the three sensor bodies 105 are within the error range. If they are within the error range, it is normal; otherwise, it is abnormal. The pressure sensor of the present invention is convenient for self-checking to cope with the situation of failure or inaccurate measurement.

[0061] A plurality of conductive blocks 1081 are installed on the connection table 108. The conductive blocks 1081 are in contact with the terminal part 107. The wire harness 109, the conductive blocks 1081, and the terminal part 107 are connected. The number of terminals of the terminal part 107 is the same as the number of conductive blocks 1081. In this embodiment, the terminal part 107 has three terminals, and the wire harness 109 is in contact with the power supply and the acquisition device.

[0062] As Figure 13 and Figure 14 shown, there are three fixing sleeves 104 and sensor bodies 105. In this embodiment, there are three through slots 1121, and the three through slots 1121 are not connected (isolated). As Figure 14 shown, the through slot 1121 at the a position in the figure is connected to the fixing sleeve 104 at the b position.

[0063] Embodiment 3: This embodiment provides a method for operating a pressure sensor, including the following steps:

[0064] Step 1, Detection process: The threaded port 102 (with a sealing ring) is installed on the tank body, and the inside of the tank body is communicated with the sensor body 105 (located at the detection station). The sensor body 105 detects the air pressure inside the tank body to realize the detection of the pressure sensor.

[0065] Step 2, Cooling process: In the initial state, the arc-shaped heat dissipation block 402 is clamped outside the sensor body 105 (at the detection station). The liquid ammonia at the bottom of the flow cavity 4023 absorbs the heat generated by the sensor body 105, and the liquid ammonia vaporizes and moves upward to the top of the flow cavity 4023.

[0066] During the vaporization process, heat is absorbed to dissipate heat from the sensor body 105; the gaseous ammonia at the top of the flow cavity 4023 liquefies into a liquid when it encounters the cold air outside, and flows to the bottom of the flow cavity 4023 under the action of gravity, and so on in a cycle to realize the heat dissipation and cooling of the sensor body 105.

[0067] Step 3, Avoidance process: In the initial state as Figure 3 shown, the second arc-shaped end 4022 is inserted into the through groove 1131, so that the top of the second arc-shaped end 4022 is in contact with the outside air (for cooling and heat dissipation). Move the moving cylinder 113 upward, and the first magnet 114 adsorbs the second magnet 115 to limit the moving cylinder 113, and the second arc-shaped end 4022 leaves the through groove 1131.

[0068] The electric flat screwdriver is inserted into the flat groove of the screw 320, and the screw 320 is driven to rotate. According to the principle of screw drive, the moving plate 321 is driven to move, driving the second gear 315 to move and mesh with the sixth gear 319.

[0069] The electric flat screwdriver is inserted into the flat groove of the driving rod 314, and the driving rod 314 is driven to rotate, driving the second gear 315 to rotate, driving the sixth gear 319 and the third rotating rod 317 to rotate. Through the second belt 322, the second rotating rod 316 and the second worm 318 are driven to rotate, driving the second worm gear 410 and the central shaft 407 to rotate. Through the third bevel gear 408, the fourth bevel gear 409, the rotating shaft 405, the first bevel gear 404, and the second bevel gear 406, the rotating shaft 401 is driven to rotate, driving the two arc-shaped heat dissipation blocks 402 to rotate away from the sensor body 105. The second arc-shaped end 4022 moves in the arc groove 1001, so that the two arc-shaped heat dissipation blocks 402 avoid the sensor body 105, facilitating the subsequent self-check process to run.

[0070] Step 4. Self-checking process: Insert the electric flat-blade screwdriver into the flat slot of the screw 320 to drive the screw 320 to rotate. According to the principle of screw drive, drive the second gear 315 to move and mesh with the first gear 313; insert the electric flat-blade screwdriver into the flat slot of the drive rod 314 to drive the drive rod 314 to rotate, drive the second gear 315 to rotate, drive the first gear 313 and the fourth rotating rod 311 to rotate, drive the first rotating rod 304 and the first worm 305 to rotate through the first belt 312, drive the rotating table 103 to rotate through the first worm gear 302, and drive another sensor body 105 to move to the detection station (the arc-shaped heat sink 402 is avoided and will not interfere with the movement of the sensor body 105). Similarly, the third sensor body 105 can be driven to move to the detection station, and compare whether the results detected by the three sensor bodies 105 are within the error range. If they are within the error range, it is normal; otherwise, it is abnormal. The pressure sensor of the present invention is convenient for self-checking to cope with the situation of failure or inaccurate measurement.

[0071] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pressure sensor, comprising a housing (100), characterized in that, A hexagonal end (101) is installed below the shell (100), a threaded opening (102) is installed on the hexagonal end (101), a rotating platform (103) is rotatably provided inside the shell (100), a circular ring (112) is installed on the rotating platform (103), and an avoidance groove (1031) is provided between the rotating platform (103) and the circular ring (112); A plurality of fixing sleeves (104) are mounted on the circular ring (112), a sensor body (105) is mounted on the fixing sleeve (104), a connection end (106) is provided below the sensor body (105), a terminal portion (107) is provided above the sensor body (105), a connecting platform (108) is provided inside the housing (100), and a wiring harness (109) is provided on the connecting platform (108); An L-shaped block (110) is mounted on the shell (100), a flow groove (1101) is provided in the L-shaped block (110), and a plurality of through grooves (1121) are provided in the ring (112); a conductive mechanism (2) is provided in the connecting platform (108), and a driving mechanism (3) for driving the rotating platform (103) to rotate is provided in the shell (100).

2. A pressure sensor according to claim 1, characterized in that The driving mechanism (3) comprises: A connecting frame (301), wherein the connecting frame (301) is mounted on the rotating platform (103); A first worm gear (302), wherein the first worm gear (302) is mounted on the connecting frame (301); A box body (303), the box body (303) being mounted on the housing (100); A first rotating rod (304), the first rotating rod (304) being rotatably disposed in the box body (303); a first worm (305), wherein the first worm (305) is mounted on the first rotating rod (304), and the first worm wheel (302) and the first worm (305) are meshed; A driving component (31), wherein the driving component (31) is arranged in the box body (303).

3. A pressure sensor according to claim 2, characterized in that, The driving assembly (31) comprises: a fourth rotating rod (311), the fourth rotating rod (311) being rotatably disposed in the box body (303); A first belt (312), wherein the fourth rotating rod (311) and the first rotating rod (304) are connected in transmission via the first belt (312); a first gear (313), wherein the first gear (313) is mounted on the fourth rotating rod (311); A driving rod (314), the driving rod (314) being rotatably disposed in the box body (303); The second gear (315) is arranged on the driving rod (314), and the first gear (313) and the second gear (315) are located correspondingly.

4. The pressure sensor according to claim 3, characterized in that, It also includes a cooling mechanism (4), which is arranged in the housing (100) and includes: Rotating shafts (401), two rotating shafts (401) are rotatably disposed below the connecting platform (108); An arc-shaped heat dissipation block (402), wherein the arc-shaped heat dissipation block (402) is mounted on the rotating shaft (401); A third gear (403), wherein the third gear (403) is mounted on the rotating shaft (401), and two third gears (403) are meshed with each other; A first bevel gear (404), the first bevel gear (404) being mounted on one of the rotating shafts (401); A rotating shaft (405), the rotating shaft (405) being rotatably disposed in the avoiding groove (1031); The second bevel gear (406) is mounted on the rotating shaft (405), and the first bevel gear (404) and the second bevel gear (406) are meshed.

5. A pressure sensor according to claim 4, characterized in that, A central shaft (407) is rotatably provided in the housing (100), a third bevel gear (408) is mounted on one end of the central shaft (407), a fourth bevel gear (409) is mounted on the rotating shaft (405), and the third bevel gear (408) and the fourth bevel gear (409) are meshed with each other; a second worm gear (410) is mounted on the other end of the central shaft (407).

6. A pressure sensor according to claim 5, wherein A second rotating rod (316) and a third rotating rod (317) are rotatably provided in the box body (303); a second worm (318) is mounted on the second rotating rod (316); and the second worm wheel (410) and the second worm (318) are meshed; The third rotating rod (317) is provided with a sixth gear (319), the sixth gear (319) corresponds to the position of the second gear (315), and the second rotating rod (316) and the third rotating rod (317) are connected in transmission via a second belt (322).

7. A pressure sensor according to claim 6, characterized in that, A screw rod (320) is rotatably provided in the box body (303), a moving plate (321) is threadedly connected to the screw rod (320), the second gear (315) is rotatably provided on the moving plate (321), a protrusion (3141) is installed on the driving rod (314), a groove (3151) is provided in the second gear (315), the protrusion (3141) slides in the groove (3151), and an avoidance hole (3211) is provided in the moving plate (321).

8. A pressure sensor according to claim 7, characterized in that, The arc-shaped heat dissipation block (402) comprises: a first arcuate end (4021); A second arc-shaped end (4022), wherein the second arc-shaped end (4022) is mounted on the first arc-shaped end (4021); a flow cavity (4023) is provided in the first arc-shaped end (4021) and the second arc-shaped end (4022), a rough surface (4024) is provided in the flow cavity (4023), and a cooling liquid is provided in the flow cavity (4023).

9. A pressure sensor according to claim 8, characterized in that, Two arc-shaped grooves (1001) are formed in the housing (100), the second arc-shaped end (4022) moves in the arc-shaped groove (1001), a moving cylinder (113) is installed on the housing (100), a through groove (1131) is formed in the moving cylinder (113), a first magnet (114) is installed on the housing (100), a second magnet (115) is installed on the moving cylinder (113), and the second arc-shaped end (4022) is inserted into the through groove (1131).

10. A pressure sensor according to claim 9, characterized in that, A plurality of conductive blocks (1081) are installed on the connecting table (108), the conductive blocks (1081) are in contact with the terminal portion (107), and the wire harness (109), the conductive blocks (1081), and the terminal portion (107) are connected in communication.

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