Pressure measurement calibration device

Abstract

The utility model discloses a pressure metering calibration device which comprises a base, an installation column is fixed to the top of the base, a pressure instrument panel is installed on the top of the installation column, a dismounting assembly is arranged on the outer side of the pressure instrument panel in a sleeved mode, a reinforcing assembly is installed at the bottom of the dismounting assembly, and the reinforcing assembly comprises an installation ring. The mounting ring is arranged on the pressure instrument panel in a sleeving mode, a lifting groove is formed in the mounting column, a directional rod is fixed in the lifting groove, a sliding block is slidably connected to the directional rod, and a clamping ring is fixed to the side face of the sliding block. According to the pressure instrument mounting device, the problem of abrasion caused by long-time threaded mounting can be avoided, connection is more stable, the service life of the connecting position of the device is prolonged while the connection stability is enhanced, and meanwhile the effect of locking the mounted pressure instrument can be achieved through a locking device.

Description

Technical Field

[0001] This utility model relates to the field of metrology and calibration technology, specifically a pressure metrology and calibration device. Background Technology

[0002] In the manufacturing process of medical devices, pressure calibration devices are used to calibrate pressure sensors and gauges in various medical equipment to ensure the quality and performance of the medical devices. For example, in the manufacturing process of a blood pressure monitor, a pressure calibration device is needed to calibrate the pressure sensor of the blood pressure monitor to ensure the accuracy of the measurements.

[0003] Chinese Patent CN221840639U discloses a pressure measurement and calibration device, including a tank. A storage box is fixedly installed on the left side of the tank, and a pressure gauge to be tested is movably installed on the right side of the upper end of the tank. A locking block is fixedly connected to the lower end of the pressure gauge. Rubber pads are evenly distributed on the inner wall of the locking block, and rubber posts for connecting the locking block are provided on the outer side of the rubber pads. A connecting tube is movably sleeved on the inner wall of the locking block. This utility model, through the cooperation between the pressure gauge to be tested, the locking block, the spring clip, and the connecting tube, utilizes the setting of the spring clip to realize the connection function between the locking block and the connecting tube, effectively solving the problem that the installation position of the pressure gauge to be tested is affected by the force of the operator in the above-disclosed technical content. By changing the connection method between the spring clip and the locking block, the disassembly and assembly steps of the pressure gauge to be tested are simplified, thus facilitating the disassembly and assembly of the pressure gauge to be tested.

[0004] When the aforementioned pressure measurement and calibration device is used, after a long period of use, the threads at the connection points where the pressure instruments are installed become severely worn, leading to unstable connections to the pressure instruments and affecting the accuracy of subsequent calibration measurements.

[0005] Therefore, this utility model provides a pressure measurement and calibration device to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a pressure measurement calibration device that solves the problem that, after prolonged use, the threads at the connection points where pressure instruments are installed become severely worn, leading to unstable connections to the pressure instruments and affecting the accuracy of subsequent calibration measurements.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a pressure measurement and calibration device, including a base, a mounting column fixed on the top of the base, a pressure gauge panel mounted on the top of the mounting column, a disassembly assembly sleeved on the outside of the pressure gauge panel, and a reinforcement assembly mounted on the bottom of the disassembly assembly;

[0008] The reinforcement component includes a mounting ring that is fitted onto the pressure gauge panel. A lifting groove is provided in the mounting column, and a directional rod is fixed in the lifting groove. A slider is slidably connected to the directional rod, and a retaining ring is fixed to the side of the slider. A mounting groove is provided in the retaining ring, and a retaining slot is provided at the other end of the mounting groove.

[0009] Preferably, a telescopic spring is fixed to the bottom of the slider, the telescopic spring is sleeved on the outside of the directional rod, and a pressure sensor is fixed inside the mounting column.

[0010] Preferably, the bottom of the pressure gauge panel is fixed with a limiting block that matches the mounting groove.

[0011] Preferably, both ends of the mounting ring are rotatably connected to rotating blocks, a first locking block is fixed in the middle of the rotating block, a second locking block is fixed at the end of the rotating block away from the second locking block, and the pressure gauge panel has a groove that matches the first locking block and the second locking block.

[0012] Preferably, the disassembly assembly includes a collar, in which a limiting block is slidably connected, a limiting plate is fixed to the side of the limiting block, a first spring is fixed to the top of the limiting plate, and inserts are provided at both ends of the collar.

[0013] Preferably, the top of the reinforcing component is fixed with a mounting block, the outer side of the mounting block is provided with a slot, the collar is provided with a sliding groove, and the other end of the first spring is fixed in the sliding groove.

[0014] Beneficial effects

[0015] This invention provides a pressure measurement and calibration device. Compared with the prior art, it has the following advantages:

[0016] (1) A pressure measurement and calibration device, by setting a reinforcement component, can still stably install and connect the pressure instrument after long-term use. This not only avoids the wear problem caused by long-term threaded installation, but also makes the connection more stable. This enhances the connection stability and improves the service life of the device connection. At the same time, the locking device can lock the pressure instrument after installation.

[0017] (2) A pressure measurement calibration device, by setting a disassembly component, allows the reinforcement device installed on the pressure instrument to be disassembled, thereby allowing the reinforcement device to be installed according to actual needs and different pressure instrument calibration conditions, thereby improving the applicability of the reinforcement device, enabling the calibration device to adapt to the calibration needs of different types of pressure instruments, and improving the efficiency and accuracy of calibration work. Attached Figure Description

[0018] Figure 1 This is a perspective view of the external structure of this utility model;

[0019] Figure 2 This is a three-dimensional view of the reinforcement component structure of this utility model;

[0020] Figure 3 This is a side sectional view of the reinforcement component of this utility model;

[0021] Figure 4 yes Figure 3 Enlarged view of the structure at point A in the middle;

[0022] Figure 5 This is a side sectional view of the disassembly component structure of this utility model.

[0023] In the diagram: 1. Base; 2. Reinforcing component; 21. Mounting ring; 22. Rotating block; 23. First locking block; 24. Second locking block; 25. Pressure sensor; 26. Lifting groove; 27. Directional rod; 28. Slider; 29. ​​Telescopic spring; 210. Snap ring; 211. Mounting groove; 212. Snap groove; 3. Disassembly component; 31. Collar; 32. Limiting block; 33. Limiting plate; 34. First spring; 35. Insert block; 36. Mounting block; 37. Slot; 4. Mounting column; 5. Pressure gauge panel. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] Please see Figure 1-4 A pressure measurement and calibration device includes a base 1, a mounting column 4 fixed on the top of the base 1, a pressure gauge 5 mounted on the top of the mounting column 4, a disassembly assembly 3 sleeved on the outside of the pressure gauge 5, and a reinforcement assembly 2 mounted on the bottom of the disassembly assembly 3.

[0027] The reinforcement component 2 includes a mounting ring 21, which is sleeved on the pressure gauge panel 5. A lifting groove 26 is provided in the mounting column 4. A guide rod 27 is fixed in the lifting groove 26. A slider 28 is slidably connected to the guide rod 27. A retaining ring 210 is fixed on the side of the slider 28. A mounting groove 211 is provided in the retaining ring 210. A retaining groove 212 is provided at the other end of the mounting groove 211.

[0028] A telescopic spring 29 is fixed at the bottom of the slider 28. The telescopic spring 29 is sleeved on the outside of the directional rod 27. A pressure sensor 25 is fixed inside the mounting column 4. The pressure sensor 25 is an AiLogics load cell. The pressure sensor 25 is electrically connected to the rotating block 22.

[0029] The pressure gauge 5 has a limiting block fixed at the bottom that matches the mounting groove 211. The pressure gauge 5 rotates in the mounting groove 211, causing the limiting block at the bottom of the pressure gauge 5 to engage in the groove 212, thereby enabling the pressure gauge 5 to be initially installed and fixed.

[0030] Both ends of the mounting ring 21 are rotatably connected to rotating blocks 22. A first locking block 23 is fixed in the middle of the rotating block 22, and a second locking block 24 is fixed at the end of the rotating block 22 away from the second locking block 24. The pressure gauge 5 has grooves that match the first locking block 23 and the second locking block 24. By locking the first locking block 23 and the second locking block 24 on the side of the rotating block 22 into the corresponding grooves, the pressure gauge 5 and the mounting column 4 can be reinforced, thereby preventing the pressure gauge 5 from being affected by external vibrations, which would affect the calibration accuracy.

[0031] In this embodiment, by fitting the mounting ring 21 onto the pressure gauge 5 and engaging it with the disassembly assembly 3, the mounting ring 21 is fixed to the pressure gauge 5. When the pressure gauge 5 is installed in the mounting column 4, the limiting block at the bottom of the pressure gauge 5 coincides with the mounting groove 211 in the retaining ring 210. The pressure gauge 5 is then rotated to engage the limiting block in the groove 212. The pressure gauge 5 is then pressed into the mounting column 4, causing the bottom of the retaining ring 210 to contact the pressure sensor 25. This allows the pressure sensor 25 to drive the rotating block 22 to rotate within the mounting ring 21 via the control system in the base 1. The first retaining block 23 and the second retaining block 24 on the side of the rotating block 22 are engaged in the grooves on the outside of the pressure gauge 5 and the mounting column 4, respectively. This further improves the stability of the pressure gauge 5 installed in the mounting column 4. Furthermore, the connection between the pressure gauge 5 and the mounting column 4 is sealed by a sealing ring, ensuring greater accuracy during subsequent calibration.

[0032] Example 2:

[0033] Please see Figure 1-5 This embodiment provides a technical solution based on embodiment one: the disassembly component 3 includes a collar 31, a limiting block 32 is slidably connected in the collar 31, a limiting plate 33 is fixed on the side of the limiting block 32, a first spring 34 is fixed on the top of the limiting plate 33, and inserts 35 are inserted at both ends of the collar 31. Springs are provided on both sides of the inside of the inserts 35, and the springs make the inserts 35 have a rebound force.

[0034] The top of the reinforcement component 2 is fixed with a mounting block 36. The mounting block 36 has a slot 37 on its outer side and a sliding groove in the collar 31. The other end of the first spring 34 is fixed in the sliding groove, so that the reinforcement component 2 can be installed and removed from the collar 31 to adapt to different types of pressure instruments, improve installation flexibility and increase applicability.

[0035] In this embodiment, the collar 31 is first fitted onto the pressure gauge panel 5. Then, the reinforcement component 2 is installed according to the type of pressure gauge to be calibrated. During installation, the mounting block 36 is inserted into the sliding groove in the collar 31, causing the mounting block 36 to push the first spring 34 to move towards the other end of the collar 31. At the same time, the first springs 34 on both sides of the first spring 34 are compressed and accumulate elastic force through the limiting plate 33. When the slot 37 on the side of the mounting block 36 moves to the position matching the insert block 35, the insert block 35 is locked in the slot 37 by the springs on both sides inside, thereby limiting the mounting block 36 and allowing the reinforcement component 2 to be securely installed in the collar 31. When it is necessary to disassemble the reinforcement component 2, the insert block 35 is pulled outward, thereby causing the mounting block 36 to detach from the inside of the collar 31. At the same time, the limiting block 32 rebounds to its original position by the elastic force of the first spring 34, allowing the reinforcement component 2 to be disassembled from the collar 31.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A pressure measurement and calibration device, comprising a base (1), characterized in that, The base (1) is fixed with a mounting column (4) at the top, and a pressure gauge panel (5) is mounted on the top of the mounting column (4). A disassembly assembly (3) is sleeved on the outside of the pressure gauge panel (5), and a reinforcement assembly (2) is mounted on the bottom of the disassembly assembly (3). The reinforcement component (2) includes a mounting ring (21) which is sleeved on the pressure gauge panel (5). The mounting column (4) has a lifting groove (26) and a guide rod (27) is fixed in the lifting groove (26). A slider (28) is slidably connected to the guide rod (27). A retaining ring (210) is fixed on the side of the slider (28). The retaining ring (210) has a mounting groove (211) and a retaining slot (212) is provided at the other end of the mounting groove (211).

2. The pressure measurement and calibration device according to claim 1, characterized in that, A telescopic spring (29) is fixed at the bottom of the slider (28), and the telescopic spring (29) is sleeved on the outside of the directional rod (27). A pressure sensor (25) is fixed inside the mounting column (4).

3. The pressure measurement and calibration device according to claim 1, characterized in that, The pressure gauge panel (5) has a limit block fixed at the bottom that matches the mounting groove (211).

4. The pressure measurement and calibration device according to claim 1, characterized in that, The mounting ring (21) is rotatably connected to both ends of a rotating block (22). A first locking block (23) is fixed in the middle of the rotating block (22). A second locking block (24) is fixed at the end of the rotating block (22) away from the second locking block (24). The pressure gauge panel (5) has a groove that matches the first locking block (23) and the second locking block (24).

5. A pressure measurement and calibration device according to claim 1, characterized in that, The disassembly assembly (3) includes a collar (31), in which a limiting block (32) is slidably connected, a limiting plate (33) is fixed on the side of the limiting block (32), a first spring (34) is fixed on the top of the limiting plate (33), and inserts (35) are inserted at both ends of the collar (31).

6. A pressure measurement and calibration device according to claim 5, characterized in that, The top of the reinforcement component (2) is fixed with a mounting block (36), the mounting block (36) has a slot (37) on the outside, the collar (31) has a sliding groove, and the other end of the first spring (34) is fixed in the sliding groove.

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