High-precision pressure sensor

Abstract

The utility model relates to the technical field of pressure sensors, and discloses a high-precision pressure sensor which comprises an adjusting assembly, a fixing assembly is installed at the bottom of the adjusting assembly, a sensor body is installed at the bottom of the fixing assembly, moving blocks are movably connected to the two sides of the outer side of a second lead screw in a sleeved mode, and clamping blocks are fixedly connected to the bottoms of the moving blocks. Through arrangement of the fixing assembly, a second handle block is rotated clockwise to drive a second screw rod to rotate, two moving blocks are close to each other, so that a clamping block is inserted into the inner side of a fixing groove, the top of the clamping block is an inclined plane, the sensor main body can be tightly attached to the bottom of the fixing assembly, and thus fixing of the sensor main body is completed; when the second handle block is rotated anticlockwise, the moving block drives the two clamping blocks to be far away from each other, and when the clamping blocks are separated from the inner side of the fixing groove, the sensor main body is taken out vertically downwards, so that the mounting and dismounting efficiency is improved, and the stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensors, and more specifically to a high-precision pressure sensor. Background Art

[0002] A pressure sensor is a device or apparatus that senses pressure signals and converts them into a usable electrical output signal according to specific rules. Pressure sensors typically consist of a pressure-sensitive element and a signal processing unit. Depending on the test pressure type, pressure sensors can be categorized as gauge pressure sensors, differential pressure sensors, and absolute pressure sensors.

[0003] After years of development, pressure sensors have become increasingly accurate, and high-precision pressure sensors are becoming more and more widely used. However, existing high-precision pressure sensors have the following deficiencies when used: pressure sensors are often fixed to the carrier by bolts, and auxiliary tools such as wrenches are required during installation and removal, which makes installation and removal inefficient. During use, it is inconvenient to stably adjust the position of the pressure sensor. During detection, it cannot be guaranteed that the detection component can make good contact with the detection medium, and the detection accuracy of the device cannot be guaranteed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-precision pressure sensor to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a high-precision pressure sensor, comprising an adjusting component, a fixing component is installed at the bottom of the adjusting component, a sensor body is installed at the bottom of the fixing component, the fixing component comprises a fixing frame, a second screw rod is movably sleeved on the inner side of the fixing frame, a second handle block is fixedly connected to the right side of the second screw rod, moving blocks are movably sleeved on both sides of the outer side of the second screw rod, a clamping block is fixedly connected to the bottom of the moving block, and positioning blocks are fixedly connected to the front and back sides of the bottom of the fixing frame.

[0006] Furthermore, the adjustment assembly includes a fixed plate, a first screw rod is movably sleeved in the middle of the top of the fixed plate, a threaded tube is threadedly sleeved on the bottom outside of the first screw rod, the bottom of the threaded tube is fixedly connected to the top of the fixed frame, the top of the first screw rod is fixedly connected to a first handle block, a first limiting rod is movably sleeved around the top of the fixed plate, and the bottom of the first limiting rod is fixedly connected to the top of the fixed frame.

[0007] Furthermore, the sensor body includes a detection mechanism, the top of the detection mechanism is fixedly connected to a fixing seat, the bottom of the detection mechanism is fixedly connected to a contact component, and a transmission interface is provided on the right side of the outer side of the detection mechanism.

[0008] Furthermore, a first thread and a second thread are respectively provided on the left and right sides of the outer side of the second screw rod, the thread directions of the first thread and the second thread are opposite, and the first thread and the second thread are both threadedly connected to the moving block.

[0009] Furthermore, the front and back sides of the inner side of the fixed frame are both fixedly connected with second limiting rods, and the second limiting rods are movably sleeved with the moving block.

[0010] Furthermore, fixing grooves are provided on both sides of the fixing seat, and the fixing grooves are adapted to the clamping blocks. Positioning grooves are provided on the front and back sides of the top of the fixing seat, and the positioning grooves are adapted to the positioning blocks.

[0011] The technical effects and advantages of this utility model are:

[0012] 1. This utility model utilizes a fixing assembly to align the top of the fixing base with the bottom of the fixing frame, inserting the positioning block into the inner side of the positioning slot. The second handle is then rotated clockwise to drive the second screw. The thrust of the first and second threads causes the two movable blocks to approach each other, allowing the clamping block to insert into the inner side of the fixing slot. The top of the clamping block is an inclined surface, which allows the sensor body to fit tightly against the bottom of the fixing assembly, thereby securing the sensor body. To remove the sensor body, the second handle is rotated counterclockwise, causing the movable block to move the two clamping blocks away from each other. Once the clamping block is separated from the inner side of the fixing slot, the sensor body can be removed vertically downward.

[0013] 2. This utility model incorporates an adjustment assembly. Rotating the first handle drives the first screw. Under the thrust of the first screw, the threaded tube drives the fixed assembly and sensor body upward or downward, ensuring good contact between the contact component and the detected medium, thereby ensuring accurate detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the adjustment component of the present utility model.

[0016] Figure 3 This is a schematic diagram of the fixing component structure of the present utility model.

[0017] Figure 4 This is a schematic diagram of the sensor main structure of the present utility model.

[0018] The figures are marked as follows: 1. Adjustment assembly; 101. Fixed plate; 102. First screw rod; 103. Threaded tube; 104. First handle block; 105. First limiting rod; 2. Fixed assembly; 201. Fixed frame; 202. Second screw rod; 221. First thread; 222. Second thread; 203. Second handle block; 204. Moving block; 205. Clamping block; 206. Positioning block; 207. Second limiting rod; 3. Sensor body; 301. Detection mechanism; 302. Contact component; 303. Fixed seat; 304. Transmission interface; 305. Fixed groove; 306. Positioning groove. DETAILED DESCRIPTION

[0019] The technical solutions of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The high-precision pressure sensor involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Reference Figures 1-4 The utility model provides a high-precision pressure sensor, including an adjusting component 1, a fixing component 2 is installed at the bottom of the adjusting component 1, a sensor body 3 is installed at the bottom of the fixing component 2, the fixing component 2 includes a fixing frame 201, a second screw rod 202 is movably sleeved on the inner side of the fixing frame 201, a second handle block 203 is fixedly connected to the right side of the second screw rod 202, a moving block 204 is movably sleeved on both sides of the outer side of the second screw rod 202, a clamping block 205 is fixedly connected to the bottom of the moving block 204, and a positioning block 206 is fixedly connected to the front and back sides of the bottom of the fixing frame 201.

[0021] When the second handle block 203 is rotated counterclockwise, the second handle block 203 is pressed against the bottom of the fixing frame 201, and the positioning block 206 is inserted into the inner side of the positioning groove 306. Then, the second handle block 203 is rotated clockwise to drive the second screw rod 202 to rotate. Under the thread thrust of the first thread 221 and the second thread 222, the two moving blocks 204 are moved closer to each other, so that the clamping block 205 is inserted into the inner side of the fixing groove 305. The top of the clamping block 205 is an inclined surface, which can make the sensor body 3 fit tightly against the bottom of the fixing assembly 2, thereby completing the fixation of the sensor body 3. When the sensor body 3 needs to be disassembled, the second handle block 203 is rotated counterclockwise, and the moving block 204 drives the two clamping blocks 205 to move away from each other. When the clamping block 205 is separated from the inner side of the fixing groove 305, the sensor body 3 can be taken out vertically downward.

[0022] When the height of the sensor body 3 needs to be adjusted, the first handle block 104 is rotated to drive the first screw rod 102 to rotate. Under the action of the threaded thrust of the first screw rod 102, the threaded tube 103 drives the fixing component 2 and the sensor body 3 to rise or fall, so that the contact part 302 can make good contact with the medium to be detected, thereby ensuring the accuracy of the detection result.

[0023] In a preferred embodiment, the adjustment component 1 includes a fixed plate 101, a first screw rod 102 is movably sleeved in the middle of the top of the fixed plate 101, a threaded tube 103 is threadedly sleeved on the bottom outer side of the first screw rod 102, the bottom of the threaded tube 103 is fixedly connected to the top of the fixed frame 201, the top of the first screw rod 102 is fixedly connected to the first handle block 104, and a first limiting rod 105 is movably sleeved around the top of the fixed plate 101, the bottom of the first limiting rod 105 is fixedly connected to the top of the fixed frame 201, and the first limiting rod 105 plays a positioning role for the fixed frame 201, so that the fixed frame 201 can only be lifted and lowered smoothly, and then when the first screw rod 102 rotates, the threaded tube 103 can drive the fixed component 2 to lift and lower.

[0024] In a preferred embodiment, the sensor body 3 includes a detection mechanism 301, the top of the detection mechanism 301 is fixedly connected to a fixing seat 303, the bottom of the detection mechanism 301 is fixedly connected to a contact component 302, and a transmission interface 304 is provided on the right side of the outer side of the detection mechanism 301. The transmission interface 304 is connected to the pressure signal transmission line and can transmit the pressure signal to the display device.

[0025] In a preferred embodiment, the left and right sides of the outer side of the second screw rod 202 are respectively provided with a first thread 221 and a second thread 222, and the thread directions of the first thread 221 and the second thread 222 are opposite. The first thread 221 and the second thread 222 are both threadedly connected with the moving block 204. When the second handle block 203 is rotated clockwise, the two moving blocks 204 approach each other, so that the clamping block 205 is inserted into the inner side of the positioning groove 306 to clamp and fix the sensor body 3.

[0026] In a preferred embodiment, the front and back sides of the inner side of the fixed frame 201 are fixedly connected with a second limiting rod 207, and the second limiting rod 207 is movably connected to the moving block 204. The second limiting rod 207 plays a positioning role for the moving block 204, so that the moving block 204 will not be offset or stuck when moving.

[0027] In a preferred embodiment, fixing grooves 305 are provided on both sides of the fixing seat 303, and the fixing grooves 305 are adapted to the clamping block 205. Positioning grooves 306 are provided on the front and back sides of the top of the fixing seat 303, and the positioning grooves 306 are adapted to the positioning block 206.

[0028] When the second handle block 203 is rotated counterclockwise, the moving block 204 drives the two clamping blocks 205 to move away from each other. When the clamping block 205 is separated from the inner side of the fixing groove 305, the sensor body 3 can be taken out vertically downward.

[0029] When the height of the sensor body 3 needs to be adjusted, the first handle block 104 is rotated to drive the first screw rod 102 to rotate. Under the action of the threaded thrust of the first screw rod 102, the threaded tube 103 drives the fixing component 2 and the sensor body 3 to rise or fall, so that the contact part 302 can make good contact with the medium to be detected, thereby ensuring the accuracy of the detection result.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0031] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-precision pressure sensor comprising a regulating assembly (1), characterized in that: A fixing assembly (2) is installed at the bottom of the adjusting assembly (1), a sensor body (3) is installed at the bottom of the fixing assembly (2), the fixing assembly (2) comprises a fixing frame (201), a second screw rod (202) is movably sleeved on the inner side of the fixing frame (201), a second handle block (203) is fixedly connected to the right side of the second screw rod (202), a moving block (204) is movably sleeved on both sides of the outer side of the second screw rod (202), a clamping block (205) is fixedly connected to the bottom of the moving block (204), and a positioning block (206) is fixedly connected to the front and back sides of the bottom of the fixing frame (201).

2. The high-precision pressure sensor according to claim 1, characterized in that: The adjustment assembly (1) includes a fixed plate (101), a first screw rod (102) is movably sleeved in the middle of the top of the fixed plate (101), a threaded tube (103) is threadedly sleeved on the bottom outside the first screw rod (102), the bottom of the threaded tube (103) is fixedly connected to the top of the fixed frame (201), the top of the first screw rod (102) is fixedly connected to a first handle block (104), the top of the fixed plate (101) is movably sleeved with a first limiting rod (105) around its periphery, and the bottom of the first limiting rod (105) is fixedly connected to the top of the fixed frame (201).

3. The high-precision pressure sensor according to claim 1, wherein: The sensor body (3) comprises a detection mechanism (301), the top of the detection mechanism (301) is fixedly connected to a fixing seat (303), the bottom of the detection mechanism (301) is fixedly connected to a contact component (302), and a transmission interface (304) is provided on the right side of the outer side of the detection mechanism (301).

4. The high-precision pressure sensor according to claim 1, wherein: A first thread (221) and a second thread (222) are respectively provided on the left and right sides of the outer side of the second screw rod (202); the thread directions of the first thread (221) and the second thread (222) are opposite; and the first thread (221) and the second thread (222) are both threadedly sleeved with the moving block (204).

5. The high-precision pressure sensor according to claim 1, wherein: The front and back sides of the inner side of the fixed frame (201) are both fixedly connected with a second limiting rod (207), and the second limiting rod (207) is movably sleeved with the moving block (204).

6. The high-precision pressure sensor according to claim 3, characterized in that: Both sides of the fixing seat (303) are provided with fixing grooves (305), and the fixing grooves (305) are adapted to the clamping block (205). The front and back sides of the top of the fixing seat (303) are provided with positioning grooves (306), and the positioning grooves (306) are adapted to the positioning block (206).

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