A pipeline pressure gauge calibration adapter device

Abstract

The utility model relates to pressure gauge calibration technical field, concretely relates to a pipeline pressure gauge calibration switching device, including test box, test box is equipped with the air inlet pipe and the air outlet pipe, the air inlet pipe is connected with booster pump, is equipped with the valve on air inlet pipe and air outlet pipe, test box top side is equipped with the standard pressure gauge, still including the mounting ring, is equipped with the connecting pipe that penetrates its upper and lower sides on the mounting ring, the connecting pipe top end is equipped with the joint for installing the pressure gauge of measuring, test box top side is circular array and is equipped with the insertion slot corresponding with the connecting pipe, is equipped with the standpipe in the insertion slot, and the bottom end of standpipe is penetrated and is equipped in test box, and the outer ring wall of standpipe and the side wall of insertion slot respectively stick and set up the inner ring silica gel pad and the outer ring silica gel pad, and test box top side center is equipped with the locking assembly for fixed mounting ring, through setting up multiple connecting pipes and joint on the mounting ring, it is convenient for installing multiple pressure gauges of measuring on the same mounting ring, detects and calibrates to multiple pressure variation of measuring simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of pressure gauge calibration technology, specifically to a pipeline pressure gauge calibration adapter. Background Technology

[0002] A pressure gauge is an instrument that uses an elastic element as its sensing element to measure and indicate pressures higher than ambient pressure. It is extremely widely used, found in almost all industrial processes and scientific research fields. The lifespan and performance of a pressure gauge can change with time and varying usage conditions, leading to deviations in its accuracy. To eliminate safety hazards, the instrument must be calibrated regularly using a calibration device.

[0003] A Chinese utility model patent document with publication number CN218765788U discloses a pressure gauge calibration device. This device uses a flow-limiting cylinder on a protective shell to drive a flow-limiting plate to move horizontally, thereby limiting the flow of the second mounting component. This prevents the gas in the connecting pipe from being discharged to the pressure gauge to be calibrated. The calibrated pressure gauge can be removed, and another pressure gauge to be calibrated can be installed for continuous calibration without the need to discharge gas, saving time and making it highly practical. However, the above device does not have the function of simultaneously testing and calibrating multiple pressure gauges. Each pressure gauge needs to be tested individually, which is time-consuming and not conducive to improving calibration efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a pipeline pressure gauge calibration adapter, which solves the problem that existing pressure gauge calibration devices in the background art do not have the function of simultaneously testing and calibrating multiple pressure gauges, and require individual testing of pressure gauges, which is time-consuming and not conducive to improving calibration efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A pipeline pressure gauge calibration adapter includes a test chamber with an inlet pipe and an outlet pipe connected to it. The inlet pipe is connected to a booster pump, and both the inlet and outlet pipes are equipped with valves. A standard pressure gauge is connected to the top side of the test chamber. The adapter also includes a mounting ring with connecting pipes arranged in a ring array on its upper and lower sides. The top of the connecting pipes has a connector for mounting the pressure gauge to be tested. The top side of the test chamber has slots arranged in a ring array corresponding to the connecting pipes. A vertically arranged vertical tube is installed in the slot, and the bottom end of the vertical tube extends through the test chamber. Inner ring silicone pads and outer ring silicone pads are respectively attached to the outer ring wall of the vertical tube and the side wall of the slot. A locking component for fixing the mounting ring is provided at the center of the top side of the test chamber.

[0007] A further technical solution is that the locking component includes a servo motor, which is fixedly located at the center of the top side of the test box, and its output shaft is vertically upward and fitted with a drive gear. The top side of the test box is rotatably provided with rotating rods arranged in a circular array inside the mounting ring, and each rotating rod is positioned directly opposite the axis of symmetry of two adjacent slots. A locking block is provided on the outer side of the rotating rod, and a transmission gear that meshes with the drive gear is fitted at the top of the rotating rod, so that the servo motor drives the drive gear to rotate, thereby driving the locking block to rotate and fasten to the top side of the mounting ring.

[0008] A further technical solution is that the bottom of the locking block is provided with a slope that is inclined downwards from the side where it first contacts the mounting ring during rotation to the other side.

[0009] A further technical solution is that the outer ring diameter of the inner ring silicone pad increases from top to bottom, so that the outer ring diameter at the top of the inner ring silicone pad is larger than the outer ring diameter of the connecting tube, and the outer ring diameter at the bottom is smaller than the outer ring diameter of the connecting tube; the inner ring diameter of the outer ring silicone pad increases from top to bottom, so that the inner ring diameter at the top of the outer ring silicone pad is larger than the outer ring diameter of the connecting tube, and the inner ring diameter at the bottom is smaller than the outer ring diameter of the connecting tube.

[0010] A further technical solution is to provide a sealing ring protruding from the slot of the enclosure on the top side of the test chamber.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In use, this utility model allows multiple pressure gauges to be tested to be installed on the same mounting ring by setting multiple connecting pipes and joints on the mounting ring. Then, the mounting ring is installed on the top side of the test chamber so that the pressure gauges to be tested are connected to the inside of the test chamber through the connecting pipes, thereby enabling simultaneous testing and calibration of multiple pressure gauges to be tested. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a pipeline pressure gauge calibration adapter according to the present invention.

[0014] Figure 2 This is a schematic diagram of the locking block on the top side of the test box of this utility model in its initial state.

[0015] Figure 3 This is a schematic diagram of the mounting ring structure of this utility model.

[0016] Figure 4 This utility model Figure 2 Enlarged cross-sectional view of point A in the middle.

[0017] Icons: 1-Test chamber, 2-Boost pump, 3-Standard pressure gauge, 4-Mounting ring, 5-Connecting pipe, 6-Pressure gauge to be tested, 7-Connector, 8-Slot, 9-Vertical pipe, 10-Inner ring silicone pad, 11-Outer ring silicone pad, 12-Servo motor, 13-Drive gear, 14-Rotating rod, 15-Locking block, 16-Transmission gear, 17-Inclined surface, 18-Sealing ring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Example 1

[0020] Reference Figures 1 to 4 This utility model discloses a pipeline pressure gauge calibration adapter, comprising a test chamber 1, which is connected to an air inlet pipe and an air outlet pipe. The air inlet pipe is connected to a booster pump 2, and both the air inlet pipe and the air outlet pipe are equipped with valves. A standard pressure gauge 3 is connected to the top side of the test chamber 1. The test chamber 1 also includes a mounting ring 4, on which connecting pipes 5 are arranged in a ring array and pass through its upper and lower sides. The top end of the connecting pipes 5 is provided with a connector 7 for installing the pressure gauge 6 to be tested. The top side of the test chamber 1 is provided with slots 8 in a ring array corresponding to the connecting pipes 5. A vertically arranged vertical pipe 9 is provided in the slot 8, and the bottom end of the vertical pipe 9 passes through the test chamber 1. An inner ring silicone pad 10 and an outer ring silicone pad 11 are respectively attached to the outer ring wall of the vertical pipe 9 and the side wall of the slot 8. A locking component for fixing the mounting ring 4 is provided at the center of the top side of the test chamber 1.

[0021] In this embodiment, when the pressure gauge 6 to be tested needs to be tested and calibrated, the pressure gauge 6 to be tested is installed on the connector 7, and then the connecting pipe 5 is pressed down on the mounting ring 4 according to its corresponding slot 8. At this time, the inner and outer ring walls of the bottom end of the connecting pipe 5 are tightly fitted with the outer ring wall of the inner ring silicone pad 10 and the inner ring wall of the outer ring silicone pad 11, respectively. Then, the mounting ring 4 is fixed by the locking component. The pressure inside the test chamber 1 is pressurized by the booster pump 2. The pressure inside the test chamber 1 can be observed by the standard pressure gauge 3, and the booster pump 2 can be turned on or off. At this time, the pointer positions of the pressure gauge 6 to be tested and the standard pressure gauge 3 are observed, and the pressure gauge 6 to be tested can be quickly tested and calibrated. By setting multiple connecting pipes 5 and connectors 7 on the mounting ring 4, it is convenient to install multiple pressure gauges to be tested on the same mounting ring 4, and thus test and calibrate multiple pressure gauges to be tested simultaneously.

[0022] Among them, two mounting rings 4 can be adapted to be set up so that when the monitoring personnel are testing and calibrating the pressure gauge 6 installed on the previous mounting ring 4, the loading and unloading personnel can install the pressure gauge 6 to be tested on the other mounting ring 4. Thus, after testing and calibrating the pressure gauge 6 on the previous mounting ring 4, the pressure gauge on the next mounting ring 4 can be tested and calibrated immediately, improving work efficiency. At the same time, the control of the booster pump 2 and the servo motor 12 by setting up a control console is common knowledge in this technical field and will not be described in detail here.

[0023] Example 2

[0024] Based on Example 1, referring to Figures 1 to 4 The locking assembly includes a servo motor 12, which is fixedly located at the center of the top side of the test box 1. Its output shaft is vertically upward and fitted with a drive gear 13. The top side of the test box 1 is located inside the mounting ring 4 and has rotating rods 14 arranged in a circular array. Each rotating rod 14 is positioned opposite the axis of symmetry of two adjacent slots 8. A locking block 15 is provided on the outer side of the rotating rod 14. A transmission gear 16 that meshes with the drive gear 13 is fitted at the top of the rotating rod 14, so that the servo motor 12 drives the drive gear 13 to rotate, thereby driving the locking block 15 to rotate and fasten to the top side of the mounting ring 4.

[0025] In this embodiment, when the mounting ring 4 is not installed on the top side of the test chamber 1, the locking block 15 is in its initial state, and the diameter of the circumference of the locking block 15 away from the rotating rod 14, with the center of the top side of the test chamber 1 as the center, is smaller than the inner diameter of the mounting ring 4. When fixing the mounting ring 4, the servo motor 12 is controlled to drive the drive gear 13 to rotate, which in turn drives the transmission gear 16 to rotate. The transmission gear 16 drives the rotating rod 14 to rotate, and the rotating rod 14 drives the free end of the locking block 15 to rotate and be placed on the top side of the mounting ring 4, thereby pressing and fixing the mounting ring 4. After the test calibration is completed, the servo motor 12 is controlled to drive the drive gear 13 to rotate in the opposite direction, which in turn drives the transmission gear 16 to rotate. The transmission gear 16 drives the rotating rod 14 to rotate, and the free end of the locking block 15 rotates away from the top side of the mounting ring 4 under the drive of the rotating rod 14, returning to its initial state. The mounting ring 4 is no longer pressed and fixed, and the mounting ring 4 can be pulled upward to disassemble it, which also facilitates subsequent test calibration.

[0026] As a preferred implementation method, refer to Figures 1 to 4 The bottom of the locking block 15 is provided with a slope 17 that is inclined downward from the side where it first contacts the mounting ring 4 when it rotates to the other side. By providing the slope 17, the locking block 15 can be smoothly rotated and placed on the top side of the mounting ring 4.

[0027] Example 3

[0028] Based on Example 1, referring to Figures 1 to 4 The outer ring diameter of the inner ring silicone pad 10 increases from top to bottom, so that the outer ring diameter at the top of the inner ring silicone pad 10 is greater than the outer ring diameter of the connecting pipe 5, and the outer ring diameter at the bottom is less than the outer ring diameter of the connecting pipe 5; the inner ring diameter of the outer ring silicone pad 11 increases from top to bottom, so that the inner ring diameter at the top of the outer ring silicone pad 11 is greater than the outer ring diameter of the connecting pipe 5, and the inner ring diameter at the bottom is less than the outer ring diameter of the connecting pipe 5.

[0029] In this embodiment, the outer ring diameter at the top of the inner ring silicone pad 10 is larger than the outer ring diameter of the connecting pipe 5, and the inner ring diameter at the top of the outer ring silicone pad 11 is larger than the outer ring diameter of the connecting pipe 5, so that the bottom end of the connecting pipe 5 can be inserted between the two. The outer ring diameter at the top of the inner ring silicone pad 10 is smaller than the outer ring diameter of the connecting pipe 5, and the inner ring diameter at the top of the outer ring silicone pad 11 is smaller than the outer ring diameter of the connecting pipe 5. When the connecting pipe 5 is inserted between the two, the outer wall of the inner ring silicone pad 10 and the inner ring wall of the outer ring silicone pad 11 fit tightly together, ensuring the sealing between the connecting pipe 5 and the vertical pipe 9.

[0030] Example 4

[0031] Based on Example 1, referring to Figures 1 to 4 A sealing ring 18 protrudes from the slot opening of the top side of the test chamber 1 surrounding the slot 8. By setting the sealing ring 18, after the mounting ring 4 is installed on the top side of the test chamber 1, the sealing ring 18 fits tightly with the bottom side of the mounting ring 4, thereby sealing the mounting ring 4 and the test chamber 1 and improving the sealing performance.

[0032] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A pipeline pressure gauge calibration adapter, comprising a test chamber (1), wherein the test chamber (1) is connected to an inlet pipe and an outlet pipe, the inlet pipe is connected to a booster pump (2), both the inlet pipe and the outlet pipe are provided with valves, and a standard pressure gauge (3) is connected to the top side of the test chamber (1), characterized in that: It also includes an installation ring (4), on which a connecting tube (5) is arranged in a ring array and passes through its upper and lower sides. The top end of the connecting tube (5) is provided with a connector (7) for installing the pressure gauge (6) to be tested. The top side of the test box (1) is provided with a slot (8) in a ring array corresponding to the connecting tube (5). The slot (8) is provided with a vertically arranged vertical tube (9), and the bottom end of the vertical tube (9) passes through the test box (1). The outer ring wall of the vertical tube (9) and the side wall of the slot (8) are respectively affixed with an inner ring silicone pad (10) and an outer ring silicone pad (11). The top center of the test box (1) is provided with a locking component for fixing the installation ring (4).

2. The pipeline pressure gauge calibration adapter according to claim 1, characterized in that: The locking assembly includes a servo motor (12), which is fixedly located at the center of the top side of the test box (1), and its output shaft is vertically upward and fitted with a drive gear (13). The top side of the test box (1) is located inside the mounting ring (4) and is provided with rotating rods (14) arranged in a ring array. Each rotating rod (14) is positioned opposite the axis of symmetry of two adjacent slots (8). A locking block (15) is provided on the outer side of the rotating rod (14). A transmission gear (16) that meshes with the drive gear (13) is fitted at the top of the rotating rod (14) so ​​that the servo motor (12) drives the drive gear (13) to rotate and thereby drives the locking block (15) to rotate and fasten to the top side of the mounting ring (4).

3. The pipeline pressure gauge calibration adapter according to claim 2, characterized in that: The bottom of the locking block (15) is provided with a slope (17) that is inclined downward from the side where it first contacts the mounting ring (4) when it rotates to the other side.

4. The pipeline pressure gauge calibration adapter according to claim 1, characterized in that: The outer ring diameter of the inner ring silicone pad (10) increases from top to bottom, so that the outer ring diameter at the top of the inner ring silicone pad (10) is greater than the outer ring diameter of the connecting pipe (5), and the outer ring diameter at the bottom is less than the outer ring diameter of the connecting pipe (5); the inner ring diameter of the outer ring silicone pad (11) increases from top to bottom, so that the inner ring diameter at the top of the outer ring silicone pad (11) is greater than the outer ring diameter of the connecting pipe (5), and the inner ring diameter at the bottom is less than the outer ring diameter of the connecting pipe (5).

5. The pipeline pressure gauge calibration adapter according to claim 1, characterized in that: The test box (1) has a sealing ring (18) protruding from the slot (8) on the top side surrounding the slot (8).

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