Multifunctional pressure calibrating device with quick switching device

Abstract

The utility model relates to the field of pressure gauge calibration, in particular to a multifunctional pressure calibration device with a quick switching device, which is characterized in that a calibration pipe is arranged at one end of a main body, so that pressure gauges at two ends are communicated with the interior of the main body; the connectors are installed outside the pipe connected with the pressure gauge to be detected, one end of one connector is connected with the adapter bolt, the multiple sets of universal adapter assemblies are annularly distributed in the adapter bolt, and one side of each universal adapter assembly can be matched with pressure gauges with interfaces of different sizes. According to the universal adapter assembly, the adapter bolt is connected with the outer side of one end of each of the pressure gauges of various models and specifications in a meshed mode, the problem of tedious replacement of the adapter is avoided, the calibration efficiency of the pressure gauges is improved, the screwing device is rotationally connected to the bottom of the adapter bolt, and one side of the universal adapter assembly can be extruded through rotation of the screwing device; the connection part of the other side of the universal switching assembly and one end of the pressure gauge is engaged more firmly, and the detection accuracy is prevented from being influenced by a gap generated by too large pressure.

Description

Technical Field

[0001] The utility model relates to the field of pressure gauge calibration, in particular to a multifunctional pressure calibration device with a quick switching device. Background Art

[0002] The pressure gauge is an industrial instrument used in many industries. The pressure gauge needs to be inspected and calibrated before installation to prevent hidden dangers caused by inaccurate pressure gauge values. The pressure gauge's inspection device determines the accuracy and efficiency of the pressure gauge inspection.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: during the calibration process, since there are many specifications of the pressure gauges to be calibrated, they need to be manually replaced when installed on the calibration device, and pressure gauges of different specifications require different adapters to connect. When the number of pressure gauges to be tested is large, the calibration efficiency is very low. Utility Model Content

[0004] In order to improve the problem that the pressure calibration device cannot match the connection of various pressure gauges, the present application provides a multifunctional pressure calibration device with a quick switching device.

[0005] The present application provides a multifunctional pressure calibration device with a quick switching device, which adopts the following technical solution: a multifunctional pressure calibration device with a quick switching device, comprising a main body, a calibration tube passing through one end of the main body, both ends of the calibration tube are connected to connecting heads, an inner hole is provided at the top of the connecting head, a switching bolt is movably installed inside the inner hole, a mounting hole is provided at the top of the switching bolt, a plurality of universal switching components are distributed in a ring shape on the inner side of the mounting hole, a tightener is movably connected to the bottom of the switching bolt, the inner side of the tightener is in contact with the outer side of the universal switching component, a regulating valve is passed through one end of the main body, and a manual booster is fixedly installed on the top of the main body.

[0006] It is further provided that an inner screw groove is provided on the inner side of the inner hole, an air hole is provided at the bottom of the inner hole, and the interior of the air hole is communicated with both ends of the calibration tube.

[0007] It is further configured that an external connecting groove is provided inside the adapter bolt, the external connecting groove is communicated with the mounting hole, one side of the universal adapter assembly is located inside the external connecting groove, an external screw groove is provided on the inner side of the external connecting groove, a bottom groove is provided at the bottom of the adapter bolt, an internal thread tooth is provided on the inner side of the bottom groove, the outer part of the internal thread tooth is rotatably engaged with the inner thread groove, an air pipe is provided at the bottom center of the adapter bolt, and the interior of the air pipe is communicated with the interior of the air hole.

[0008] It is further configured that the universal adapter assembly includes a plurality of outer arc plates arranged vertically and equidistantly, one side of the outer arc plates is connected to a damping spring, one end of the damping spring is connected to an inner arc plate, one side of the inner arc plate is provided with an adapter screw tooth, one side of the outer arc plate is facing the inner side of the external connecting groove, and the adapter screw tooth faces the inside of the mounting hole.

[0009] It is further provided that a top hole is provided on the top of the tightener, a plurality of groups of pressure blocks are distributed in an annular shape inside the top hole, external screw teeth are provided outside the top hole, and a rotating ring is provided at the bottom of the tightener.

[0010] It is further configured that the top hole is connected to the bottom end of the adapter bolt, the outer side of the external thread tooth is rotatably engaged with the outer side of the external thread groove, the pressure block is located inside the external connecting groove, and one side of the pressure block is in contact with one side of the outer arc plate.

[0011] Compared with the related art, the multifunctional pressure testing device with a quick switching device provided by the utility model has the following beneficial effects:

[0012] The utility model provides a multifunctional pressure calibration device with a quick switching device. By providing a switching bolt and an internal threaded tooth at the bottom of the switching bolt, the switching bolt can be first connected to the inside of the inner hole. At this time, a plurality of groups of movable universal switching components are arranged inside the switching bolt, and the universal switching components are set as a plurality of groups of structures composed of an outer arc plate, a damping spring and an inner arc plate. When one end of a pressure gauge of different models is rotated into the inside of the mounting hole, it will contact the inner arc plate, and due to the thrust of the damping spring, the inner arc plate will be more closely attached to the outside of the connection at one end of the pressure gauge, so that the switching threaded tooth can mesh with the threaded tube at the connection of the pressure gauge. Due to the action of the damping spring, the inner arc plate can have an adaptive moving pressure effect, so that pressure gauges of different diameters can be connected and fixed after being rotated into the mounting hole, thereby avoiding the cumbersome problem of using different adapters and improving the calibration efficiency of the pressure gauge.

[0013] The utility model provides a multifunctional pressure testing device with a quick switching device, in which an external connection groove is provided inside the switching bolt and is connected with the mounting hole, so that one side of the outer arc plate can be directed to the inside of the outer connection groove, and can be movably connected with one end of a tightener by providing an external screw groove, and one end of the tightener can be continuously rotated inside the outer connection groove to make one side of the pressure block continuously move from the bottom end inside the outer connection groove to the top end inside the outer connection groove, and contact one side of multiple outer arc plates one by one during the movement, so that the damping spring and the inner arc plate are stressed at the same time by squeezing the outer arc plate, and when the connection at one end of the pressure gauge is meshed with the switching screw tooth, the squeezing force caused by the pressure block makes the meshing more firmly, and there will be no problems such as loose connection and gap due to excessive pressure of the pressure gauge during the calibration process, so that the pressure calibration is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a preferred embodiment of a multifunctional pressure testing device with a quick switching device provided by the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the box connector of the utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the internal structure of the adapter of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the universal adapter assembly of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the tightener of the utility model.

[0019] Numbers in the figure: 1. Main body; 2. Calibration tube; 3. Connector; 301. Inner hole; 302. Inner screw groove; 303. Air hole; 4. Adapter bolt; 401. Mounting hole; 402. External connection groove; 4021. External screw groove; 403. Bottom groove; 4031. Internal thread gear; 404. Air pipe; 5. Universal adapter assembly; 501. External arc plate; 502. Damping spring; 503. Internal arc plate; 5031. Adapter thread gear; 6. Tightener; 601. Top hole; 602. Pressure block; 603. External thread gear; 604. Rotating ring; 7. Regulating valve; 8. Manual booster. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings show typical embodiments of the present invention.

[0021] Embodiment 1:

[0022] like Figure 1 and Figure 5As shown, the utility model is a multifunctional pressure calibration device with a quick adapter, including a main body 1, a calibration tube 2 is installed at one end of the main body 1 to make the pressure gauges at both ends pass through the interior of the main body 1, and a connector 3 is installed on the outside of the calibration tube 2 to connect a standard pressure gauge or other adapters, and an adapter bolt 4 is connected to one end of one of the connectors 3, and a plurality of sets of universal adapter components 5 are distributed in an annular manner inside the adapter bolt 4, and one side of the universal adapter component 5 can be used to match pressure gauges of different sizes, so that it can be meshed and connected with the outer side of one end of pressure gauges of various models and specifications, and the connection at one end thereof is connected and fixed to the inside of the adapter bolt 4, thereby avoiding the problem of cumbersome replacement of the adapter and improving the pressure calibration efficiency, and a tightener 6 is rotatably connected to the bottom of the adapter bolt 4, and the rotation of the tightener 6 can squeeze one side of the universal adapter component 5, so that the other side of the universal adapter component 5 is more firmly meshed with the connection at one end of the pressure gauge, thereby avoiding gaps caused by excessive pressure and affecting the calibration accuracy.

[0023] like Figure 2 As shown, the inner hole 301 can be provided to allow the adapter or the pressure gauge of the same size to be connected, the inner screw groove 302 can increase the firmness of the connection, and the air hole 303 is provided for gas transmission.

[0024] like Figure 3 As shown, the mounting hole 401 is provided so that one end of a pressure gauge of a different specification smaller than its inner diameter can be rotated in, the bottom groove 403 and the inner threaded tooth 4031 are provided so that the adapter bolt 4 can be connected to the inside of the connector 3, and the air pipe 404 is provided so that the gas can be transmitted normally.

[0025] like Figure 4 As shown, by setting the universal adapter assembly 5 to a plurality of structures consisting of an outer arc plate 501, a damping spring 502 and an inner arc plate 503, the adapter screw teeth 5031 on the outer side of the inner arc plate 503 are engaged with the threaded tube at one end of pressure gauges of different specifications. The damping spring 502 gives the inner arc plate 503 a pressure effect of adaptive movement, so that the inner arc plate 503 can be connected and engaged with the threaded tube at one end of pressure gauges of different specifications, and the outer arc plate 501 can be arranged to contact one end of the tightener 6.

[0026] During implementation, the inner hole 301 is set to be engaged and connected with the inner threaded tooth 4031, so that the adapter bolt 4 is first installed on the connecting head 3, and then through the multiple sets of universal adapter components 5 installed on the inner side of the mounting hole 401, one end of the pressure gauge of different specifications that need to be calibrated can be rotated into the mounting hole 401. At this time, the connection at one end of the pressure gauge will contact the universal adapter component 5, and the threaded tube on the outside of one end will mesh with the adapter threaded tooth 5031 and rotate. During the rotation process, the pressure applied by the damping spring 502 allows the inner arc plate 503 to fit the connection at one end of the pressure gauge. When the diameters of one end of pressure gauges of different specifications are different, the action of the damping spring 502 can make the inner arc plate 503 have an adaptive moving pressure effect, so that pressure gauges of different diameters can be connected and fixed after being rotated into the mounting hole 401, thereby avoiding the cumbersome problem of using different adapters and improving the calibration efficiency of the pressure gauge.

[0027] Embodiment 2:

[0028] like Figure 3 As shown, based on the first embodiment, the utility model provides a technical solution: by providing an external connecting groove 402 inside the adapter bolt 4 and the bottom of the external connecting groove 402 is hollow, one end of the tightener 6 can enter the external connecting groove 402 from here, and by providing an external screw groove 4021, it can be rotatably connected with the tightener 6.

[0029] like Figure 5 As shown, by providing a top hole 601, the tightener 6 can be movably connected to the bottom of the adapter bolt 4, by providing a pressure block 602 and having a certain toughness, it can squeeze and contact one side of the universal adapter component 5, by providing an external threaded tooth 603 for the tightener 6 to be rotatably connected to the bottom of the adapter bolt 4, by providing a rotating ring 604, a person can manually rotate the tightener 6.

[0030] During implementation, when one end of a pressure gauge of different sizes is connected to the inside of the adapter bolt 4, the inner arc plate 503 is already connected to one end of the pressure gauge. By rotating the rotating ring 604, the outer threaded tooth 603 can be meshed and rotated with the outer threaded groove 4021, so that the tightener 6 can continuously rotate from the bottom to the top along the outer connecting groove 402. During the rotation and movement of the tightener 6, the pressure block 602 will continuously contact the multiple groups of outer arc plates 501 arranged in sequence, so that the damping spring 502 and the inner arc plate 503 are simultaneously stressed by squeezing the outer arc plates 501. When the connection at one end of the pressure gauge is meshed with the adapter threaded tooth 5031, the squeezing force caused by the pressure block 602 makes the meshing more secure, and there will be no problems such as loose connection and gaps due to excessive pressure in the pressure gauge during the calibration process, so that the pressure calibration is more accurate.

[0031] The advantages of this technical solution in practical applications include but are not limited to the following:

[0032] 1. When one end of a pressure gauge of different models is rotated into the interior of the mounting hole 401, the adapter screw 5031 can mesh with the threaded tube at the connection of the pressure gauge. Due to the effect of the damping spring 502, the inner arc plate 503 can have an adaptive pressure effect, so that pressure gauges of different diameters can be connected and fixed after being rotated into the mounting hole 401, avoiding the cumbersome problem of using different adapters and improving the calibration efficiency of the pressure gauge;

[0033] 2. By rotating the tightener 6 to squeeze the outer arc plate 501, the damping spring 502 and the inner arc plate 503 are stressed at the same time. When the connection at one end of the pressure gauge is engaged with the adapter screw 5031, the extrusion force caused by the pressure block 602 will make the engagement more secure, and there will be no problems such as loose connection and gap due to excessive pressure in the pressure gauge during the calibration process, so that the pressure calibration is more accurate.

[0034] The technical solution provides an inner hole 301 that can be engaged and movably connected with the inner threaded tooth 4031, so that the adapter bolt 4 is first installed on the connector 3, and then through the multiple sets of universal adapter components 5 installed on the inner side of the mounting hole 401, one end of the pressure gauge of different specifications that need to be calibrated can be rotated into the mounting hole 401. At this time, the connection at one end of the pressure gauge will contact the universal adapter component 5, and the threaded tube on the outside of one end will mesh with the adapter threaded tooth 5031 and rotate. During the rotation process, the inner arc plate 503 can be fitted to the connection at one end of the pressure gauge due to the pressure applied by the damping spring 502. When the diameters of one end of the pressure gauges of different specifications are different, the inner arc plate 503 can have an adaptive moving pressure effect due to the action of the damping spring 502, so that pressure gauges of different diameters can be connected and fixed after being rotated into the mounting hole 401, avoiding the cumbersome problem of using different adapters and improving the calibration efficiency of the pressure gauge. When one end of the pressure gauges of different sizes is connected to the inside of the adapter bolt 4, the inner arc plate 503 is already connected to one end of the pressure gauge. The outer screw teeth 603 and the outer screw groove 4021 can be meshed and rotated by rotating the rotating ring 604, so that the tightener 6 can be continuously rotated from the bottom to the top along the outer connection groove 402. During the rotation and movement of the tightener 6, the pressure block 602 will continuously contact the multiple groups of outer arc plates 501 arranged in sequence, so that the damping spring 502 and the inner arc plate 503 are stressed at the same time by squeezing the outer arc plates 501. When the connection at one end of the pressure gauge is meshed with the adapter screw teeth 5031, the squeezing force caused by the pressure block 602 will cause it to mesh. The connection is more secure, and there will be no problems such as loose connection and gap due to excessive pressure in the pressure gauge during the calibration process, so that the pressure calibration is more accurate. Finally, the standard pressure gauge is connected to the connecting head 3, and the pressure gauge to be calibrated is connected to the adapter bolt 4. Then, by adjusting the regulating valve 7, the gas can be input into the air pipe 404 from the air hole 303, and finally the manual booster 8 can be controlled to pressurize the interior of the main body 1, and finally enter the pressure gauge to achieve the effect of continuous pressurization, thereby achieving the purpose of accurately and efficiently calibrating the pressure of the pressure gauge.

[0035] The above are only exemplary embodiments of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the disclosure of the specification and the truth of practice, it will be easy for those skilled in the art to think of other embodiments of the present disclosure. This application is intended to cover any variation, use or adaptive change of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field not recorded in the present disclosure.

Claims

1. A multifunctional pressure testing device with a quick switching device, comprising a main body (1), characterized in that: A calibration tube (2) is passed through one end of the main body (1), and both ends of the calibration tube (2) are connected to a connector (3). An inner hole (301) is provided at the top of the connector (3), and a switching bolt (4) is movably installed inside the inner hole (301). A mounting hole (401) is provided at the top of the switching bolt (4), and a plurality of universal switching components (5) are distributed in an annular manner inside the mounting hole (401). A tightener (6) is movably connected to the bottom of the switching bolt (4), and the inner side of the tightener (6) is in contact with the outer side of the universal switching component (5). A regulating valve (7) is passed through one end of the main body (1), and a manual booster (8) is fixedly installed on the top of the main body (1).

2. A multifunctional pressure testing device with a quick switching device according to claim 1, characterized in that: An inner screw groove (302) is provided on the inner side of the inner hole (301), and an air hole (303) is provided at the bottom of the inner hole (301). The interior of the air hole (303) is communicated with both ends of the calibration tube (2).

3. A multifunctional pressure testing device with a quick switching device according to claim 1, characterized in that: The adapter bolt (4) is provided with an external connection groove (402) inside, and the external connection groove (402) is communicated with the mounting hole (401); one side of the universal adapter assembly (5) is located inside the external connection groove (402); an external screw groove (4021) is provided on one side of the inner side of the external connection groove (402); a bottom groove (403) is provided at the bottom of the adapter bolt (4); an internal screw tooth (4031) is provided on the inner side of the bottom groove (403); the outer side of the internal screw tooth (4031) is rotatably engaged with the inner screw groove (302); an air pipe (404) is provided at the center of the bottom of the adapter bolt (4); the interior of the air pipe (404) is communicated with the interior of the air hole (303).

4. The multifunctional pressure testing device with a quick switching device according to claim 1, characterized in that: The universal adapter assembly (5) comprises a plurality of outer arc plates (501) arranged vertically and equidistantly, one side of each outer arc plate (501) is connected to a damping spring (502), one end of each damping spring (502) is connected to an inner arc plate (503), one side of each inner arc plate (503) is provided with an adapter screw tooth (5031), one side of each outer arc plate (501) is facing the inner side of the outer connection groove (402), and the adapter screw tooth (5031) faces the inside of the mounting hole (401).

5. The multifunctional pressure testing device with a quick switching device according to claim 1, characterized in that: The top of the tightener (6) is provided with a top hole (601), a plurality of groups of pressure blocks (602) are distributed in an annular manner inside the top hole (601), an external threaded tooth (603) is provided outside the top hole (601), and a rotating ring (604) is provided at the bottom of the tightener (6).

6. A multifunctional pressure testing device with a quick switching device according to claim 5, characterized in that: The top hole (601) is connected to the bottom end of the adapter bolt (4), the outer side of the external threaded tooth (603) is rotatably engaged with the outer side of the external threaded groove (4021), the pressure block (602) is located inside the external connection groove (402), and one side of the pressure block (602) is in contact with one side of the external arc plate (501).

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