Device for quickly changing pressure gauge of verification table and verification table

Abstract

The utility model relates to the technical field of pressure gauge calibration, and discloses a device for quickly changing a pressure gauge of a verification table, which comprises a joint shell and latches. The connector shell is provided with an installation end and a calibration end which are oppositely arranged, and the installation end is used for being connected with a verification table; the clamping teeth are fixedly arranged on the inner side wall of the calibration end of the connector shell. Wherein the calibration end of the connector shell can generate elastic deformation, and under the condition that the pressure gauge is installed at the calibration end, the clamping teeth are connected with the threaded end of the pressure gauge. According to the utility model, the replacement frequency of the connector housing is reduced, the efficiency of calibrating the pressure gauge is improved, and the user experience is improved. The invention further discloses a verification table.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pressure gauge calibration, for example to a device for quick replacement of a pressure gauge on a test bench and a test bench. BACKGROUND

[0002] At present, a pressure gauge is an instrument capable of measuring and indicating pressure higher than the ambient pressure. The pressure gauge is a commonly used instrument. However, errors may occur in the pressure gauge during long-term use, and the pressure gauge needs to be checked and calibrated regularly to ensure the accuracy of the pressure gauge. There are many types of pressure gauges, such as national standard pressure gauges, American standard pressure gauges and European standard pressure gauges.

[0003] The test bench for the pressure gauge in the prior art adopts a threaded connection mode, and there are many types of pressure gauges. The test bench needs to replace different connectors for connecting the pressure gauges to adapt to different types of pressure gauges.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] The connector needs to be frequently replaced to meet the calibration of the pressure gauge, which reduces the efficiency of testing the pressure gauge and the user experience.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. Content of the utility model

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine the key / important elements or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a device for quick replacement of a pressure gauge on a test bench and a test bench to reduce the frequency of replacement of the connector housing, improve the efficiency of testing the pressure gauge, and improve the user experience.

[0009] In some embodiments, the device for quick replacement of a pressure gauge on a test bench comprises a connector housing and a catch. The connector housing has oppositely arranged mounting and calibration ends, the mounting end being used to connect with the test bench; the catch is fixedly arranged on the inner side wall of the calibration end of the connector housing; wherein the calibration end of the connector housing can be elastically deformed, and the catch is connected with the threaded end of the pressure gauge in the case that the pressure gauge is mounted on the calibration end.

[0010] Optionally, the mounting end of the connector housing is provided with a connecting seat for connecting with the test bench.

[0011] Optionally, the connecting seat is provided with an elastic sealing gasket, and the elastic sealing gasket is in abutment with a sealing surface of the pressure gauge when the pressure gauge is installed on the calibration end.

[0012] Optionally, the connecting seat is provided with an elastic sealing gasket, and the elastic sealing gasket is in abutment with a sealing surface of the pressure gauge when the pressure gauge is installed on the calibration end.

[0013] Optionally, the elastic sealing gasket is made of rubber material.

[0014] Optionally, the joint shell and the connecting seat are connected through a detachable connecting piece, the detachable connecting piece includes a connecting sleeve, one end of the connecting sleeve is provided with a screw cap, the screw cap is connected with the connecting seat through threads, and the other end of the connecting sleeve is provided with a receiving cavity, and the joint shell is installed in the receiving cavity.

[0015] Optionally, the joint shell is provided with a pin hole at an end facing the screw cap, the screw cap is provided with a positioning pin, and the positioning pin is inserted into the pin hole when the joint shell is installed in the receiving cavity.

[0016] Optionally, the joint shell is made of elastic material.

[0017] In some embodiments, the calibration bench comprises the device for quick replacement of the pressure gauge of the calibration bench.

[0018] The device for quick replacement of the pressure gauge of the calibration bench and the calibration bench provided by the embodiments of the present disclosure can achieve the following technical effects:

[0019] The threaded end of the pressure gauge is aligned with the clamping tooth, and the pressure gauge is rotated to enable the threaded end of the pressure gauge to engage with the clamping tooth. Since the joint shell can be elastically deformed, in the case that the size of the threaded end of the pressure gauge is relatively large, the threaded end and the clamping tooth are matched to enable the calibration end of the joint shell to be squeezed and elastically deformed; in the case that the size of the threaded end of the pressure gauge is small, the calibration end of the joint shell is elastically deformed by using a commonly used clamping tool to clamp the calibration end, so that the clamping tooth tightly clamps the threaded end of the pressure gauge. In summary, the joint shell can be adapted to a plurality of pressure gauges of different sizes, thereby reducing the frequency of replacement of the joint shell, improving the efficiency of calibrating the pressure gauge, and improving the user experience.

[0020] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] One or more embodiments are exemplarily illustrated by corresponding drawings, which are only illustrative and explanatory, and do not constitute a limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute a proportional limitation, and wherein:

[0022] Figure 1is a structural schematic diagram of a device for quick replacement of a pressure gauge of a test bench provided by an embodiment of the present disclosure;

[0023] Figure 2 is an exploded schematic diagram of a structural schematic diagram of a device for quick replacement of a pressure gauge of a test bench provided by an embodiment of the present disclosure;

[0024] Figure 3 is an exploded schematic diagram of a structural schematic diagram of a device for quick replacement of a pressure gauge of a test bench provided by an embodiment of the present disclosure;

[0025] Figure 4 is an exploded schematic diagram of a structural schematic diagram of a device for quick replacement of a pressure gauge of a test bench provided by an embodiment of the present disclosure;

[0026] Figure 5 is a structural schematic diagram of a device for quick replacement of a pressure gauge of a test bench provided by an embodiment of the present disclosure;

[0027] Figure 6 is an exploded schematic diagram of a structural schematic diagram of a device for quick replacement of a pressure gauge of a test bench provided by an embodiment of the present disclosure;

[0028] Figure 7 is a structural schematic diagram of a device for quick replacement of a pressure gauge of a test bench provided by an embodiment of the present disclosure;

[0029] Figure 8 is a structural schematic diagram of a test bench provided by an embodiment of the present disclosure.

[0030] Reference signs:

[0031] 100, joint housing; 101, mounting end; 102, calibration end; 110, pin hole; 200, clamping tooth; 300, connecting seat; 310, elastic sealing pad; 320, communication air port; 400, detachable connecting piece; 410, connecting sleeve; 411, accommodating cavity; 420, nut; 421, positioning pin; 500, mounting sleeve; 600, bench body; 610, fixed pipe; 010, pressure gauge. DETAILED DESCRIPTION

[0032] In order to enable a person skilled in the art to better understand the features and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0033] The terms "first", "second", etc. in the description and claims of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0034] In the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present disclosure and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present disclosure can be understood according to the specific circumstances.

[0035] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0036] Unless otherwise specified, the term "a plurality of" means two or more.

[0037] It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0038] In combination Figures 1-2 As shown, the present disclosure provides a device for quick changing of a pressure gauge of a testing table, comprising a joint shell 100 and a clamping tooth 200. The joint shell 100 has an installation end 101 and a calibration end 102 arranged oppositely, and the installation end 101 is used to connect with the testing table; the clamping tooth 200 is fixedly arranged on the inner side wall of the calibration end 102 of the joint shell 100; wherein the calibration end 102 of the joint shell 100 can be elastically deformed, and in the case that the pressure gauge 010 is installed on the calibration end 102, the clamping tooth 200 is connected with the threaded end of the pressure gauge 010.

[0039] With the device for quick changing of pressure gauges of a testing table provided in the embodiments of the present disclosure, the threaded end of the pressure gauge 010 is aligned with the clamping tooth 200, and the pressure gauge 010 is rotated to engage the threaded end of the pressure gauge 010 with the clamping tooth 200. Since the joint shell 100 can be elastically deformed, in the case that the threaded end of the pressure gauge 010 is relatively large in size, the threaded end and the clamping tooth 200 are engaged, which can press and elastically deform the calibration end 102 of the joint shell 100; in the case that the threaded end of the pressure gauge 010 is relatively small in size, the calibration end 102 of the joint shell 100 is elastically deformed by clamping with a commonly used clamping tool, so that the clamping tooth 200 clamps the threaded end of the pressure gauge 010. In summary, the joint shell 100 can be adapted to a plurality of pressure gauges 010 of different sizes, thereby reducing the frequency of replacement of the joint shell 100, improving the efficiency of testing the pressure gauge 010, and improving the user experience.

[0040] It can be understood that the commonly used clamping tool can be a circular ring clamp or the like, or can be tied by a rope.

[0041] In one embodiment, the calibration end 102 of the joint shell 100 is made of rubber material. In this way, the calibration end 102 of the joint shell 100 has a certain elasticity to adapt to the threaded end of the pressure gauge 010 which is relatively large in size or the threaded end of the pressure gauge 010 which is relatively small in size. And the mounting end 101 of the joint shell 100 is relatively hard, and the stability of the connection is relatively high when the mounting end 101 is connected with the testing table.

[0042] In another embodiment, the joint shell 100 is made of elastic material. In this way, the joint shell 100 can be elastically deformed to adapt to the threaded end of the pressure gauge 010 which is relatively large in size or the threaded end of the pressure gauge 010 which is relatively small in size. And the mounting end 101 of the joint shell 100 has a certain elasticity, and can be mounted on testing tables of different specifications.

[0043] Optionally, the joint shell 100 is made of rubber material. In this way, the joint shell 100 has relatively good wear resistance while having elasticity.

[0044] It can be understood that the joint shell 100 can also be made of other elastic materials, such as polyurethane (PU).

[0045] Optionally, the joint shell 100 is a cylindrical shell structure. In this way, since the threaded end of the pressure gauge 010 is usually circular, and the joint shell 100 is a cylindrical shell structure corresponding to the threaded end of the pressure gauge 010, the adaptability of the connection is better.

[0046] Optionally, the plurality of clamping teeth 200 are arranged on the inner side wall of the calibration end 102 of the joint shell 100. In this way, the plurality of clamping teeth 200 are arranged on the threaded end of the pressure gauge 010, and the connection position is relatively more, and the connection stability is higher.

[0047] Optionally, the plurality of clamping teeth 200 are arranged on the inner side wall of the calibration end 102 of the joint shell 100. In this way, the plurality of clamping teeth 200 are arranged on the threaded end of the pressure gauge 010, and the connection position is relatively more, and the connection stability is higher.

[0048] In combination with Figure 3 Optionally, the installation end 101 of the joint shell 100 is provided with a connecting seat 300, and the connecting seat 300 is used to be connected with the calibration platform. In this way, the installation end 101 is connected with the connecting seat 300, and the connecting seat 300 is connected with the calibration platform, and the connection stability is higher.

[0049] In combination with Figure 4 Optionally, the connecting seat 300 is provided with an elastic sealing gasket 310, and the elastic sealing gasket 310 is abutted with the sealing surface of the pressure gauge 010 in the case that the pressure gauge 010 is installed on the calibration end 102. In this way, the elastic sealing gasket 310 is abutted with the sealing surface of the pressure gauge 010 in the case that the pressure gauge 010 is installed on the calibration end 102, and the sealing surface of the pressure gauge 010 extrudes the elastic sealing gasket 310, so that the sealing surface and the elastic sealing gasket 310 are kept sealed, and the risk of leakage between the sealing surface and the elastic sealing gasket 310 is relatively low in the case that the calibration platform pressurizes the pressure gauge 010.

[0050] Optionally, the elastic sealing gasket 310 is a circular ring structure. In this way, the shape of the elastic sealing gasket 310 corresponds to the shape of the sealing surface of the threaded end of the pressure gauge 010.

[0051] Specifically, the elastic sealing gasket 310 is located on the side wall of the connecting seat 300 facing the joint shell 100.

[0052] Optionally, the connecting seat is provided with a communication air port 320, and the communication air port 320 is communicated with the pressure gauge 010 in the case that the elastic sealing gasket 310 is abutted with the sealing surface of the pressure gauge 010. In this way, the calibration platform pressurizes the pressure gauge 010 through the communication air port 320 to test whether the index of the pressure gauge 010 is normal.

[0053] Specifically, the communication air port 320 is a circular hole structure.

[0054] Optionally, the axis of the communication air port 320 coincides with the axis of the elastic sealing gasket 310. In this way, the communication air port 320 corresponds to the position of the center of the elastic sealing gasket 310, and the risk of the elastic sealing gasket 310 shielding the communication air port 320 is reduced.

[0055] Optionally, the axis of the joint shell 100 coincides with the axis of the communication vent 320. In this way, the communication vent 320 is located at the center of the joint shell 100 so as to better correspond to the threaded end of the pressure gauge.

[0056] Optionally, the elastic sealing pad 310 is made of rubber material. In this way, the elastic sealing pad 310 made of rubber material has relatively good wear resistance.

[0057] In an embodiment, the mounting end 101 of the joint shell 100 is sleeved on the outside of the connecting seat 300. In this way, the inner side wall of the mounting end 101 is connected with the outer side wall of the connecting seat 300, and the connection is more convenient.

[0058] Specifically, the mounting end 101 is flush with the lower side of the connecting seat 300.

[0059] In combination with Figure 5 In another embodiment, the joint shell 100 is connected with the connecting seat 300 through the detachable connecting piece 400, and the detachable connecting piece 400 includes the connecting sleeve 410 provided with the nut 420 at one end, the nut 420 is connected with the connecting seat 300 through threads, and the other end of the connecting sleeve 410 is provided with the accommodating cavity 411, and the joint shell 100 is installed in the accommodating cavity 411. In this way, the nut 420 is connected with the connecting seat 300 through threads, the stability of the connection is relatively high, and the assembly and separation between the nut 420 and the connecting seat 300 are relatively convenient.

[0060] Optionally, the calibration end 102 of the joint shell 100 protrudes from the accommodating cavity 411 of the connecting sleeve 410. In this way, the calibration end 102 is connected with the threaded end of the pressure gauge 010, and the calibration end 102 protrudes from the accommodating cavity 411 of the connecting sleeve 410, avoiding interference caused by elastic deformation of the calibration end 102 by the connecting sleeve 410.

[0061] Optionally, the outer side wall of the joint shell 100 abuts against the inner side wall of the connecting sleeve 410. In this way, the inner side wall of the connecting sleeve 410 is connected with the outer side wall of the joint shell 100, the area of the connection is relatively large, and the stability of the connection is relatively high.

[0062] Optionally, the mounting end 101 of the joint shell 100 abuts against the nut 420. In this way, the mounting end 101 of the joint shell 100 abuts on the nut 420, so that the area of the connection between the joint shell 100 and the connecting sleeve 410 is relatively large, and the stability of the connection is relatively high.

[0063] In combination with Figure 5 and Figure 6As shown, the joint shell 100 is provided with a pin hole 110 at one end thereof towards the nut 420, and the nut 420 is provided with a positioning pin 421 which is inserted into the pin hole 110 when the joint shell 100 is installed in the accommodating cavity 411. In this way, the relative sliding between the nut 420 and the joint shell 100 is avoided by the cooperation of the positioning pin 421 and the pin hole 110, and the stability of the connection is improved.

[0064] In combination Figure 7 As shown, in another embodiment, the joint shell 100 is connected with the connecting seat 300 through a mounting sleeve 500, an inner side wall of one end of the mounting sleeve 500 is threadedly connected with the connecting seat 300, and the other end of the mounting sleeve 500 is sleeved with the outer side wall of the joint shell 100. In this way, the connecting seat 300 and the joint shell 100 are directly connected through the mounting sleeve 500, and the required parts are relatively less, and the stability is relatively high.

[0065] Optionally, the calibration end 102 of the joint shell 100 protrudes from the mounting sleeve 500. In this way, the calibration end 102 is connected with the threaded end of the pressure gauge 010, and the calibration end 102 protrudes from the mounting sleeve 500, avoiding the interference of the elastic deformation of the calibration end 102 caused by the mounting sleeve 500.

[0066] Specifically, the mounting end 101 of the joint shell 100 abuts against the connecting seat 300. In this way, the mounting end 101 of the joint shell 100 abuts against the connecting seat 300, so that the area of the joint shell 100 connected with the mounting sleeve 500 is relatively large, and the stability of the connection is relatively high.

[0067] In some embodiments, the calibration bench comprises the device for quick replacement of the pressure gauge of the calibration bench as in the above embodiments.

[0068] With the calibration bench provided by the embodiments of the present disclosure, since the calibration bench comprises the device for quick replacement of the pressure gauge of the calibration bench as in the above embodiments, the threaded end of the pressure gauge 010 is aligned with the clamping tooth 200, and the pressure gauge 010 is rotated to make the threaded end of the pressure gauge 010 engage with the clamping tooth 200. Since the joint shell 100 can be elastically deformed, in the case that the size of the threaded end of the pressure gauge 010 is relatively large, the threaded end and the clamping tooth 200 cooperate to press and elastically deform the calibration end 102 of the joint shell 100; in the case that the size of the threaded end of the pressure gauge 010 is small, the calibration end 102 of the joint shell 100 is elastically deformed by clamping with a commonly used clamping tool to make the clamping tooth 200 clamp the threaded end of the pressure gauge 010. In summary, the joint shell 100 can adapt to a plurality of pressure gauges 010 of different sizes, thereby reducing the frequency of replacement of the joint shell 100, improving the efficiency of calibrating the pressure gauge 010, and improving the user experience.

[0069] In combination Figure 8As shown, the calibrating table comprises a table body 600 and a fixed pipe 610. The bottom end of the fixed pipe 610 is connected with the table body 600, the top end of the fixed pipe 610 is connected with the connecting seat 300, and the fixed pipe 610 is communicated with the communicating air hole 320. In this way, since the height of the table body 600 is relatively low, the connecting height of the connecting seat 300 is increased through the fixed pipe 610, so as to facilitate the operator to observe the reading of the pressure gauge 010.

[0070] Optionally, a plurality of fixed pipes 610 are arranged, and the top end of each fixed pipe 610 is connected with one connecting seat 300. In this way, a plurality of pressure gauges 010 can be measured simultaneously through the plurality of fixed pipes 610.

[0071] Optionally, the plurality of fixed pipes 610 are communicated with each other. In this way, the pressure inside the plurality of fixed pipes 610 is the same through the communication between the fixed pipes 610, so as to make the calibration pressure of each pressure gauge 010 the same, and reduce the error of the calibration.

[0072] The above description and drawings sufficiently show the embodiments of the present disclosure to enable a person skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments only represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations can be changed. Some parts and features of some embodiments can be included or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A device for pressure gauge quick change of a testing station, characterized in that, The device comprises: a joint shell (100) having oppositely arranged mounting end (101) and calibration end (102), the mounting end (101) is used for connecting with the test bench; claw (200), fixedly arranged on the inner side wall of the calibration end (102) of the joint shell (100); wherein, the calibration end (102) of the joint shell (100) can produce elastic deformation, in the case of installing the pressure gauge (010) on the calibration end (102), the claw (200) is connected with the threaded end of the pressure gauge (010).

2. The device for quick changing of pressure gauge of test bench according to claim 1, wherein, the mounting end (101) of the joint shell (100) is provided with a connecting seat (300), and the connecting seat (300) is used for connecting with the test bench.

3. The device for quick changing of pressure gauge of test bench according to claim 2, wherein, the connecting seat (300) is provided with an elastic sealing gasket (310), and in the case of installing the pressure gauge (010) on the calibration end (102), the elastic sealing gasket (310) abuts against the sealing surface of the pressure gauge (010).

4. The device for quick changing of pressure gauge of test bench according to claim 3, wherein, the connecting base is provided with a communication air port (320), and in the case of abutting the elastic sealing gasket (310) against the sealing surface of the pressure gauge (010), the communication air port (320) is communicated with the pressure gauge (010).

5. The device for quick changing of pressure gauge of test bench according to claim 2, wherein, the elastic sealing gasket (310) is made of rubber material.

6. The device for quick changing of pressure gauge of test bench according to claim 2, wherein, the joint shell (100) and the connecting seat (300) are connected through a detachable connecting piece (400), the detachable connecting piece (400) comprises a connecting sleeve (410) having a screw cap (420) at one end, the screw cap (420) is connected with the connecting seat (300) through screw thread, the other end of the connecting sleeve (410) is provided with a receiving cavity (411), and the joint shell (100) is installed in the receiving cavity (411).

7. The device for quick changing of pressure gauge of test bench according to claim 6, wherein, the joint shell (100) is provided with a pin hole (110) at the end facing the screw cap (420), the screw cap (420) is provided with a positioning pin (421), and in the case of installing the joint shell (100) in the receiving cavity (411), the positioning pin (421) is inserted into the pin hole (110).

8. The device for quick changing of pressure gauge of test bench according to any one of claims 1 to 7, wherein, the joint shell (100) is made of elastic material.

9. An assay station characterized by, The device for quick changing of pressure gauge of test bench according to claim 8.

Images