A precision testing table for instrument and meter processing

Abstract

This utility model discloses a precision testing stage for instrument processing, comprising: a testing body, a connecting assembly, and a protective assembly; the connecting assembly includes connecting pipes, multiple connecting pipes are disposed at the output end of the testing body, a movable cavity block is disposed at the top of the connecting pipe, and a fixing part is disposed on the inner wall of the movable cavity block; the protective assembly includes a sealing block, the bottom of the sealing block is inserted into the middle of the movable cavity block, and a rotating part is disposed at the top of the sealing block; a reset part is disposed in the inner cavity of the connecting pipe and the movable cavity block; this utility model, by disposing of a movable cavity block at the top of the connecting pipe in the connecting assembly at the top of the testing body, and using the fixing part to fix the instrument to be tested, wherein the sealing block in the protective assembly, under the support of the reset part, isolates and protects the inner cavity of the movable cavity block, preventing foreign objects from entering the interior of the movable cavity block, hindering the fixed connection between the pressure instrument and the movable cavity block, and affecting the testing of the pressure instrument.

Description

Technical Field

[0001] This utility model relates to the field of instrument testing equipment technology, and in particular to a precision testing platform for instrument processing. Background Technology

[0002] In the precision testing process of instrument and meter processing, the pressure testing bench must ensure that the actual pressure measured by the pressure measuring instrument is consistent with its clock pressure reading. Most existing testing bench designs adopt an open structure, with a connecting pipe directly installed on the top of the testing bench. The pressure instrument is directly connected and fixed to the connecting pipe through a threaded connection. Then, gas with a known pressure is introduced, and the reading of the pressure instrument is observed to see if there is any deviation.

[0003] However, in actual use, the connecting pipe is usually directly exposed to the external environment and connected to the external environment. This can easily lead to foreign objects such as insects entering the connecting pipe, blocking the air outlet of the connecting pipe, hindering the connection between the pressure gauge and the connecting pipe, and affecting the detection of the pressure gauge.

[0004] Therefore, how to design a precision testing station that can fix pressure gauges and prevent foreign objects from entering has become an urgent problem to be solved. Utility Model Content

[0005] The purpose of this utility model is to provide a precision testing stage for instrument and meter processing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision testing stage for instrument and meter processing, comprising:

[0007] The detection body is used for pressure measurement and detection of pressure gauges.

[0008] A connecting assembly for connecting and installing a pressure gauge, the connecting assembly including connecting pipes, multiple connecting pipes being disposed at the output end of the detection body, a movable cavity block being disposed at the top of the connecting pipe, and a fixing part for fixing the pressure gauge being disposed on the inner wall of the movable cavity block;

[0009] A protective component is provided to isolate the inner cavity of the movable cavity block from the outside. The protective component includes a sealing block, the bottom of which is inserted into the middle of the movable cavity block. The top of the sealing block is provided with a rotating part for assisting the sealing block to rotate and disengage. The connecting pipe and the inner cavity of the movable cavity block are provided with a reset part for pressing and resetting the sealing block.

[0010] Preferably, the fixing part includes a threaded ring, which is disposed on the top of the inner wall of the movable cavity block, and the threaded ring is used to thread-fix the pressure instrument.

[0011] Preferably, the reset part includes:

[0012] A positioning ring is disposed on the inner wall of the connecting pipe;

[0013] A fixing sleeve, the bottom of which is threadedly inserted into the top of a positioning ring;

[0014] A movable sleeve is fitted over the outside of a fixed sleeve, and the top of the movable sleeve is fixedly connected to the bottom of a sealing block.

[0015] A spring-loaded component is disposed within the inner cavity of the fixed sleeve and the movable sleeve, and the spring-loaded component is used for the compression and reset of the movable sleeve.

[0016] Preferably, the springback element includes:

[0017] A compression spring, wherein the compression spring is disposed in the inner cavity of the fixed sleeve and the movable sleeve;

[0018] Positioning pins, a plurality of positioning pins are respectively disposed at both ends of the compression spring, and the ends of the plurality of positioning pins away from the compression spring are respectively fixedly connected to the bottom of the sealing block and the inner wall of the fixing sleeve.

[0019] Preferably, a sealing strip is fitted on the outer side of the sealing block, and the sealing strip is used to fill the gap between the sealing block and the inner wall of the movable cavity block.

[0020] Preferably, the rotating part includes:

[0021] A locking rod, wherein the locking rod is disposed on the top of the sealing block;

[0022] A rotating rod, one end of which is inserted and connected to the opposite side of the locking rod and the sealing block.

[0023] Preferably, the other end of the rotating rod is configured as a protrusion, and the protruding end of the rotating rod is used to assist in gripping and pulling the rotating rod.

[0024] The technical effects and advantages of this utility model are as follows:

[0025] This invention features a connecting assembly at the top of the testing machine body. The connecting pipe in the connecting assembly has a movable cavity block at its top. The movable cavity block is fixed to the instrument to be tested by a fixing part. The sealing block in the protective assembly isolates and protects the inner cavity of the movable cavity block under the support of the reset part, preventing foreign objects from entering the interior of the movable cavity block, hindering the fixed connection between the pressure instrument and the movable cavity block, and affecting the testing of the pressure instrument. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0027] Figure 2 This is a schematic diagram of the structure of the connecting component of this utility model.

[0028] Figure 3 This is a partial cross-sectional view of the connecting component of this utility model.

[0029] Figure 4 This is a schematic diagram of the structure of the fixing sleeve and positioning ring of this utility model.

[0030] Figure 5 This is a cross-sectional view of the rotating part of this utility model.

[0031] Figure 6 This is a top view of the connecting component of this utility model.

[0032] In the diagram: 1. Detector body; 10. Threaded ring; 11. Movable sleeve; 2. Connecting pipe; 3. Movable cavity block; 4. Sealing block; 401. Sealing strip; 5. Rotating part; 501. Locking rod; 502. Rotating rod; 6. Positioning ring; 7. Fixed sleeve; 8. Positioning pin; 9. Compression spring. Detailed Implementation

[0033] 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.

[0034] This utility model provides, for example Figure 1-6 As shown:

[0035] Example 1,

[0036] A precision testing stage for instrument processing includes: a testing body 1, a connecting component, and a protective component;

[0037] Specifically, the testing body 1 is used for pressure measurement and testing of the pressure gauge, and the connecting component is used for connecting and installing the pressure gauge. The working principle of the testing body 1 is based on the KK-QZD-Q250 pressure instrument testing bench.

[0038] It should be noted that the connecting assembly includes a connecting pipe 2, and multiple connecting pipes 2 are all located at the output end of the detection body 1. A movable cavity block 3 is provided at the top of the connecting pipe 2, and a fixing part for fixing the pressure gauge is provided on the inner wall of the movable cavity block 3.

[0039] Specifically, the protective component is used to isolate the inner cavity of the movable cavity block 3 from the outside world. The connecting pipe 2 is fixed to the output end of the detection body 1 by welding. The connecting pipe 2 is connected to the output end of the detection body 1. The connecting pipe 2 is fixed to the movable cavity block 3 by welding.

[0040] It should be noted that the fixing part includes a threaded ring 10, which is disposed on the top of the inner wall of the movable cavity block 3. The threaded ring 10 is used to fix the pressure instrument with threads.

[0041] Specifically, the threaded ring 10 and the movable cavity block 3 are fixed by welding. The inner wall of the threaded ring 10 is provided with threads corresponding to the pressure gauge. The protective component includes a sealing block 4. The bottom of the sealing block 4 is inserted and connected to the middle of the movable cavity block 3. The top of the sealing block 4 is provided with a rotating part 5 for assisting the sealing block 4 to rotate and disengage. The connecting pipe 2 and the inner cavity of the movable cavity block 3 are provided with a reset part for pressing and resetting the sealing block 4.

[0042] It should be noted that a sealing strip 401 is fitted on the outer side of the sealing block 4. The sealing strip 401 is used to fill the gap between the sealing block 4 and the inner wall of the movable cavity block 3. The sealing strip 401 is made of rubber and is glued to the sealing block 4.

[0043] Specifically, the reset part includes: a positioning ring 6, a fixed sleeve 7, a movable sleeve 11, and a spring-loaded component;

[0044] It should be noted that the positioning ring 6 is set on the inner wall of the connecting pipe 2, the bottom of the fixed sleeve 7 is threadedly connected to the top of the positioning ring 6, the movable sleeve 11 is sleeved on the outside of the fixed sleeve 7, the top of the movable sleeve 11 is fixedly connected to the bottom of the sealing block 4, and the spring is set in the inner cavity of the fixed sleeve 7 and the movable sleeve 11.

[0045] Specifically, the spring is used for the compression reset of the movable sleeve 11, the positioning ring 6 is welded and fixed to the connecting pipe 2, the bottom outer side of the fixed sleeve 7 is threaded, the top of the positioning ring 6 is threaded for the fixed sleeve 7 to pass through, the sealing block 4 is welded and fixed to the movable sleeve 11, and the inner cavity cross section of the movable sleeve 11 is rectangular, so that the fixed sleeve 7 rotates during the rotation of the sealing block 4.

[0046] Specifically, the spring-returning components include: a compression spring 9 and a positioning post 8;

[0047] It should be noted that the compression spring 9 is located in the inner cavity of the fixed sleeve 7 and the movable sleeve 11, and multiple positioning pins 8 are respectively located at both ends of the compression spring 9. The ends of the multiple positioning pins 8 away from the compression spring 9 are respectively fixedly connected to the bottom of the sealing block 4 and the inner wall of the fixed sleeve 7.

[0048] Specifically, the positioning post 8 is welded and fixed to the sealing block 4, and the positioning post 8 is welded and fixed to the fixed sleeve 7. The fixed sleeve 7 can move in the movable sleeve 11.

[0049] Example 2,

[0050] A rotating part 5 is applied to the precision testing stage for instrument processing in Embodiment 1;

[0051] Specifically, the rotating part 5 includes a locking rod 501 and a rotating rod 502;

[0052] It should be noted that the locking rod 501 is located on the top of the sealing block 4, and one end of the rotating rod 502 is inserted and connected to the opposite side of the locking rod 501 and the sealing block 4.

[0053] Specifically, the top of the sealing block 4 is grooved, and the locking rod 501 is welded and fixed to the sealing block 4. The locking rod 501 is L-shaped and limits the rotation rod 502. The other end of the rotation rod 502 is protruding. The protruding end of the rotation rod 502 is used to assist in the gripping and pulling of the rotation rod 502. After the rotation rod 502 moves and resets, it does not protrude from the groove. The user can pull the rotation rod 502 and use the rotation rod 502 to rotate the sealing block 4. When the pressure instrument is installed, the sealing block 4 is directly squeezed so that the sealing block 4 enters the movable cavity block 3. The pressure instrument is threadedly connected to the threaded ring 10.

[0054] In actual use, a connecting component is provided on the top of the testing body 1. The connecting pipe 2 in the connecting component is provided with a movable cavity block 3. The movable cavity block 3 is fixed by the fixing part to fix the instrument to be tested. The sealing block 4 in the protective component isolates and protects the inner cavity of the movable cavity block 3 under the support of the reset part, so as to prevent foreign objects from entering the interior of the movable cavity block 3, hindering the fixed connection between the pressure instrument and the movable cavity block 3, and affecting the detection of the pressure instrument.

[0055] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An apparatus for precision detection of instrument processing, characterized in that, include: The detection body (1) is used for pressure measurement and detection of the pressure gauge; A connecting assembly is used for connecting and installing a pressure gauge. The connecting assembly includes a connecting pipe (2). Multiple connecting pipes (2) are disposed at the output end of the detection body (1). A movable cavity block (3) is disposed at the top of the connecting pipe (2). A fixing part for fixing the pressure gauge is disposed on the inner wall of the movable cavity block (3). The protective component is used to isolate the inner cavity of the movable cavity block (3) from the outside. The protective component includes a sealing block (4). The bottom of the sealing block (4) is inserted and connected to the middle of the movable cavity block (3). The top of the sealing block (4) is provided with a rotating part (5) for assisting the sealing block (4) to rotate and disengage. The connecting pipe (2) and the inner cavity of the movable cavity block (3) are provided with a reset part for pressing and resetting the sealing block (4).

2. The precision testing table for processing of instruments and meters according to claim 1, characterized in that, The fixing part includes a threaded ring (10), which is disposed on the top of the inner wall of the movable cavity block (3) and is used to fix the pressure instrument with threads.

3. The precision testing stage for instrument processing according to claim 2, characterized in that, The reset unit includes: Positioning ring (6), the positioning ring (6) is disposed on the inner wall of the connecting pipe (2); A fixed sleeve (7) is threadedly inserted at the bottom of a positioning ring (6) at the top. Movable sleeve (11), the movable sleeve (11) is sleeved on the outside of the fixed sleeve (7), and the top of the movable sleeve (11) is fixedly connected to the bottom of the sealing block (4). The spring is disposed in the inner cavity of the fixed sleeve (7) and the movable sleeve (11), and the spring is used for the compression reset of the movable sleeve (11).

4. The precision testing table for processing of instruments and meters according to claim 3, characterized in that, The springback component includes: Compression spring (9), the compression spring (9) is disposed in the inner cavity of the fixed sleeve (7) and the movable sleeve (11); Positioning pins (8), multiple positioning pins (8) are respectively disposed at both ends of compression spring (9), and the ends of multiple positioning pins (8) away from compression spring (9) are respectively fixedly connected to the bottom of sealing block (4) and the inner wall of fixing sleeve (7).

5. The precision testing table for processing of instruments and meters according to claim 1, characterized in that, A sealing strip (401) is fitted on the outside of the sealing block (4), and the sealing strip (401) is used to fill the gap between the sealing block (4) and the inner wall of the movable cavity block (3).

6. The precision testing table for processing of instruments and meters according to claim 5, characterized by the fact that, The rotating part (5) includes: A locking rod (501) is provided on the top of the sealing block (4); Rotating rod (502), one end of which is inserted and connected to the opposite side of the locking rod (501) and the sealing block (4).

7. The precision testing table for processing of instruments and meters as claimed in claim 6, wherein The other end of the rotating rod (502) is configured as a protrusion, and the protrusion end of the rotating rod (502) is used to assist in the gripping and pulling of the rotating rod (502).

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