Precise digital pressure gauge calibration device

Abstract

The invention discloses a precise digital pressure meter calibration device in the technical field of calibration devices, the precise digital pressure meter calibration device is reasonable in structure, a mounting seat A is matched with a connector A on a digital pressure calibration meter, and the digital pressure calibration meter is mounted on the mounting seat A in a threaded connection manner; the mounting head A is mounted at the top end of the pressure regulating pipe in a threaded connection manner, so that the digital pressure calibration meter and the pressure regulating pipe can be detached and replaced, the mounting seat B is matched with the joint B on the pressure meter, and the pressure meter is mounted on the mounting seat B in a threaded connection manner; and then the mounting head B is mounted at the top end of the re-inspection pipe in a threaded connection manner, so that the pressure gauge and the re-inspection pipe can be detached and replaced, a corresponding digital pressure calibration meter is mounted in a matched manner according to the mounted pressure gauge, and the situation that a fixed digital pressure calibration meter cannot be matched with different pressure gauges is avoided as much as possible.

Description

Technical Field

[0001] The invention relates to the technical field of calibration devices, in particular to a precision digital pressure gauge calibration device. Background Art

[0002] A precision digital pressure gauge is a high-precision instrument used to measure gas or liquid pressure. It is widely used in industries, laboratories, scientific research and other fields. In order to ensure the accuracy of the precision digital pressure gauge value, it is usually necessary to use a corresponding precision digital pressure gauge calibration device for calibration. Due to the different specifications of precision digital pressure gauges, the installed joints are also different. However, the precision digital pressure gauge calibration device usually performs calibration on the corresponding precision digital pressure gauge, which cannot be applied to precision digital pressure gauges of different specifications, thereby reducing the universality of the precision digital pressure gauge calibration device. At the same time, precision digital pressure gauges of different specifications require different calibration tables, which cannot meet the calibration tables that match precision digital pressure gauges of different specifications, thereby reducing the universality of the precision digital pressure gauge calibration device and indirectly affecting the calibration efficiency of the precision digital pressure gauge calibration device.

[0003] Therefore, it is necessary to develop a precise digital pressure gauge calibration device. Summary of the invention

[0004] The object of the present invention is to provide a precision digital pressure gauge calibration device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a precision digital pressure gauge calibration device, comprising a base, a pressure regulating valve is installed at the top center of the base, and a pressure regulating pipe is installed at the top rear end of the pressure regulating valve;

[0006] A return check valve is installed on one side of the top of the base, and a return check pipe is installed on the top of the return check valve.

[0007] Preferably, a mounting seat A is installed at the top end of the voltage regulating tube, and a mounting head A is provided at the bottom end of the mounting seat A.

[0008] Preferably, the outer wall of the mounting head A is threadedly connected to the upper part of the inner wall of the pressure regulating tube, and a digital pressure calibration gauge is installed above the mounting seat A.

[0009] Preferably, a connector A is provided at the bottom of the digital pressure calibration gauge, a sealing ring A is slidably connected to the upper part of the outer wall of the connector A, and the lower part of the outer wall of the connector A is threadedly connected to the upper part of the interior of the mounting seat A.

[0010] Preferably, a mounting seat B is installed at the top of the return inspection tube, an L-shaped slot is opened on the upper part of the inner wall of the return inspection tube, and a sealing ring is installed at the bottom of the mounting seat B.

[0011] Preferably, a sealing ring B is provided on the inner wall of the sealing ring, the inner wall of the sealing ring B is slidably connected to the outer wall of the return inspection tube, and a mounting head B is provided inside the sealing ring.

[0012] Preferably, a clamping block is provided below the outer wall of the mounting head B, the outer wall of the clamping block is slidably connected to the inner wall of the L-shaped slot, and a pressure gauge is installed above the mounting seat B.

[0013] Preferably, a joint B is provided at the bottom of the pressure gauge, a sealing ring C is slidably connected to the upper part of the outer wall of the joint B, and the lower part of the outer wall of the joint B is threadedly connected to the upper part of the interior of the mounting seat B.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By matching the mounting seat A with the connector A on the digital pressure calibration gauge, and installing the digital pressure calibration gauge on the mounting seat A in a threaded manner, and then installing the mounting head A on the top of the pressure regulating tube in a threaded manner, the digital pressure calibration gauge and the pressure regulating tube can be disassembled and replaced. By matching the mounting seat B with the connector B on the pressure gauge, and installing the pressure gauge on the mounting seat B in a threaded manner, and then installing the mounting head B on the top of the return inspection tube in a threaded manner, the pressure gauge and the return inspection tube can be disassembled and replaced. According to the installed pressure gauge, the corresponding digital pressure calibration gauge is matched and installed to avoid the situation that the fixed digital pressure calibration gauge cannot match different pressure gauges. At the same time, the mounting seat A and the mounting seat B have a disassembly effect to meet the installation of digital pressure calibration gauges and pressure gauges of different specifications, and try to avoid the situation that the precision digital pressure gauge calibration device cannot be applied to pressure gauges and digital pressure calibration gauges of different sizes. The versatility of the precision digital pressure gauge calibration device is effectively improved, and the calibration efficiency of the precision digital pressure gauge calibration device is indirectly and effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A front cross-sectional view provided by the present invention;

[0017] Figure 2 A front view provided for the present invention;

[0018] Figure 3 The present invention provides Figure 1 A magnified view of the structure at A;

[0019] Figure 4 The present invention provides Figure 1 A magnified view of the structure at B in FIG.

[0020] Figure 5A bottom-up stereoscopic schematic diagram of a part of the structure provided by the present invention;

[0021] Figure 6 The present invention is provided in a three-dimensional schematic diagram of a partial structure from top to bottom.

[0022] In the figure: 1. base; 2. pressure regulating valve; 201. pressure regulating tube; 202. mounting seat A; 203. mounting head A; 204. digital pressure calibration gauge; 205. connector A; 206. sealing ring A; 3. return check valve; 301. return check tube; 302. mounting seat B; 303. L-shaped slot; 304. sealing ring; 305. sealing ring B; 306. mounting head B; 307. block; 308. pressure gauge; 309. connector B; 310. sealing ring C. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The present invention provides the following technical solution: a precision digital pressure gauge calibration device, please refer to Figure 1-Figure 6 , comprising a base 1, a pressure regulating valve 2 is installed at the top center position of the base 1, a pressure regulating tube 201 is installed at the top rear end of the pressure regulating valve 2, a mounting seat A202 is installed at the top of the pressure regulating tube 201, a mounting head A203 is arranged at the bottom end of the mounting seat A202, the outer wall of the mounting head A203 is threadedly connected with the upper part of the inner wall of the pressure regulating tube 201, a digital pressure calibration gauge 204 is installed above the mounting seat A202, a joint A205 is arranged at the bottom of the digital pressure calibration gauge 204, a sealing ring A206 is slidably connected to the upper part of the outer wall of the joint A205, and a sealing ring A206 is slidably connected to the lower part of the outer wall of the joint A205 The mounting seat A202 is threadedly connected with the upper inner part of the mounting seat A202, and the mounting seat A202 is installed on the top of the pressure regulating tube 201 by the mounting head A203 in a threaded connection manner, and the digital pressure calibration gauge 204 is installed on the mounting seat A202 by a joint A205 and a sealing ring A206 in a threaded connection manner, so that the mounting seat A202, the digital pressure calibration gauge 204 and the pressure regulating tube 201 have a detachable effect, and different digital pressure calibration gauges 204 need to be equipped with matching mounting seats A202 to achieve different installation processing of the digital pressure calibration gauges 204;

[0025] A return check valve 3 is installed on one side of the top of the base 1, a return check tube 301 is installed on the top of the return check valve 3, a mounting seat B302 is installed on the top of the return check tube 301, an L-shaped groove 303 is opened on the upper inner wall of the return check tube 301, a sealing ring 304 is installed on the bottom of the mounting seat B302, a sealing ring B305 is arranged on the inner wall of the sealing ring 304, the inner wall of the sealing ring B305 is slidably connected with the outer wall of the return check tube 301, a mounting head B306 is arranged inside the sealing ring 304, a clamping block 307 is arranged on the lower outer wall of the mounting head B306, and the clamping block The outer wall of 307 is slidably connected with the inner wall of the L-shaped card slot 303. A pressure gauge 308 is installed on the top of the mounting seat B302. A joint B309 is provided at the bottom of the pressure gauge 308. A sealing ring C310 is slidably connected to the upper part of the outer wall of the joint B309. The lower part of the outer wall of the joint B309 is threadedly connected to the upper part of the inner part of the mounting seat B302. The mounting head B306 on the mounting seat B302 is matched with the card block 307 in a sliding manner and docked in the L-shaped card slot 303 on the return inspection tube 301. The L-shaped card slot 303 needs to be docked during installation. After the insertion is completed , and then rotate to achieve the installation of the mounting seat B302, and at the same time match the sealing ring 304 and the sealing ring B305 on the outside, so that after the mounting seat B302 is installed, the sealing ring B305 is used to seal, and the sealing of the connection is avoided as much as possible. By matching the mounting seat B302 with the connector B309 on the pressure gauge 308, and installing the pressure gauge 308 on the mounting seat B302 in a threaded connection, and then installing the mounting head B306 in a threaded connection The top of the return inspection tube 301, it can achieve pressure The force gauge 308 and the return inspection tube 301 are detachable and replaceable. According to the installed pressure gauge 308, the corresponding digital pressure calibration gauge 204 is installed to avoid the situation that the fixed digital pressure calibration gauge 204 cannot match different pressure gauges 308. At the same time, the mounting seat A202 and the mounting seat B302 are detachable and replaceable to meet the installation of digital pressure calibration gauges 204 and pressure gauges 308 of different specifications, and avoid the situation that the precision digital pressure gauge calibration device cannot be applied to pressure gauges and digital pressure calibration gauges of different sizes.

[0026] Working principle: When using the present invention, the mounting seat A202 is installed on the top of the pressure regulating tube 201 by the mounting head A203 in a threaded connection manner, and the digital pressure calibration gauge 204 is installed on the mounting seat A202 by the connector A205 and the sealing ring A206 in a threaded connection manner, so that the mounting seat A202, the digital pressure calibration gauge 204 and the pressure regulating tube 201 have a detachable effect. At the same time, different digital pressure calibration gauges 204 need to be equipped with matching mounting seats A202 to meet different The digital pressure calibration gauge 204 is installed by sliding the mounting head B306 on the mounting seat B302 with the block 307 into the L-shaped slot 303 on the return tube 301. The L-shaped slot 303 needs to be docked during installation. After the insertion is completed, the mounting seat B302 can be installed by rotating it. At the same time, the sealing ring 304 and the sealing ring B305 on the outside are matched so that the mounting seat B302 is sealed by the sealing ring B305 after installation, and the connection is avoided as much as possible. In case of seal being affected, the mounting base B302 is matched with the joint B309 on the pressure gauge 308, and the pressure gauge 308 is installed on the mounting base B302 by threaded connection, and then the mounting head B306 is installed on the top of the return inspection tube 301 by threaded connection, so that the pressure gauge 308 and the return inspection tube 301 can be disassembled and replaced. According to the installed pressure gauge 308, the corresponding digital pressure calibration gauge 204 is matched and installed, and the situation that the fixed digital pressure calibration gauge 204 cannot match different pressure gauges 308 is avoided as much as possible. At the same time, the mounting base A202 and the mounting base B302 have the effect of disassembly and assembly, which can meet the installation of digital pressure calibration gauges 204 and pressure gauges 308 of different specifications, and the situation that the precision digital pressure gauge calibration device cannot be applied to pressure gauges and digital pressure calibration gauges of different sizes is avoided as much as possible, which effectively improves the versatility of the precision digital pressure gauge calibration device, and also indirectly and effectively improves the calibration efficiency of the precision digital pressure gauge calibration device.

[0027] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A precision digital pressure gauge calibration device, comprising a base (1), characterized in that: A pressure regulating valve (2) is installed at the center of the top of the base (1), and a pressure regulating pipe (201) is installed at the rear end of the top of the pressure regulating valve (2); A return check valve (3) is installed on one side of the top of the base (1), and a return check pipe (301) is installed on the top of the return check valve (3).

2. A precision digital pressure gauge calibration device according to claim 1, characterized in that: A mounting seat A (202) is installed at the top end of the pressure regulating tube (201), and a mounting head A (203) is provided at the bottom end of the mounting seat A (202).

3. A precision digital pressure gauge calibration device according to claim 2, characterized in that: The outer wall of the mounting head A (203) is threadedly connected to the upper part of the inner wall of the pressure regulating tube (201), and a digital pressure calibration gauge (204) is installed above the mounting seat A (202).

4. A precision digital pressure gauge calibration device according to claim 4, characterized in that: A connector A (205) is provided at the bottom of the digital pressure calibration gauge (204), a sealing ring A (206) is slidably connected to the upper part of the outer wall of the connector A (205), and the lower part of the outer wall of the connector A (205) is threadedly connected to the upper part of the interior of the mounting seat A (202).

5. A precision digital pressure gauge calibration device according to claim 1, characterized in that: A mounting seat B (302) is installed at the top of the return inspection tube (301), an L-shaped slot (303) is opened on the upper inner wall of the return inspection tube (301), and a sealing ring (304) is installed at the bottom of the mounting seat B (302).

6. A precision digital pressure gauge calibration device according to claim 5, characterized in that: The inner wall of the sealing ring (304) is provided with a sealing ring B (305), the inner wall of the sealing ring B (305) is slidably connected to the outer wall of the return inspection tube (301), and the interior of the sealing ring (304) is provided with a mounting head B (306).

7. A precision digital pressure gauge calibration device according to claim 6, characterized in that: A clamping block (307) is provided below the outer wall of the mounting head B (306), and the outer wall of the clamping block (307) is slidably connected to the inner wall of the L-shaped clamping groove (303). A pressure gauge (308) is installed above the mounting seat B (302).

8. A precision digital pressure gauge calibration device according to claim 7, characterized in that: A joint B (309) is provided at the bottom of the pressure gauge (308), a sealing ring C (310) is slidably connected to the upper part of the outer wall of the joint B (309), and the lower part of the outer wall of the joint B (309) is threadedly connected to the upper part of the interior of the mounting seat B (302).

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