Tool

Abstract

The utility model belongs to the technical field of insulation tests, and discloses a tool. The tool comprises a tool body and a filtering piece. A first connecting part connected with a tank body and a second connecting part detachably connected with an inflation valve are arranged at the two ends of the tool body respectively, a through gas channel is formed in the tool body, one end of the gas channel is communicated with a gas outlet of the inflation valve, and the other end of the gas channel is communicated with a gas inlet of the tank body. A mounting groove is formed in one end of the gas channel; and the filtering piece is mounted in the mounting groove. Through the arrangement of the tool, gas exhausted by the inflation valve is filtered through the tool and then enters the tank body, the risk that foreign matter in the tank discharges electricity is reduced, the qualified rate of product tests and the safety of product operation are further improved, the two ends of the tool are connected with the tank body and the inflation valve respectively, and the tool is convenient to use. And when the inflation valve is detached for cleaning, the connection between the tank body and the tool is not influenced, and the abrasion of the tank body is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of insulation testing, in particular to a tooling fixture. Background Art

[0002] Before some electrical products leave the factory, insulation testing is required. Insulation testing requires the use of an insulation testing tooling fixture. The insulation testing tooling fixture generally includes a tank body and an inflation valve provided on the tank body. The outlet end of the inflation valve is communicated with the inside of the tank body, and the inlet end of the inflation valve is connected to the pipeline joint of the inflation device. The inflation device fills the tank body with insulating gas through the inflation valve to create an insulating environment for the electrical product.

[0003] Currently, the pipeline joint and the inflation valve are connected by a threaded connection. During use, the pipeline joint and the inflation valve need to be frequently connected and separated, resulting in wear at the connection between the pipeline joint and the inflation valve and generating metal debris. During the inflation process, these metal debris may enter the tank body with the gas, causing foreign object discharge in the tank, affecting the qualification rate of product testing and the safety of product operation. Moreover, due to the risk of metal debris entering the tank, the inflation valve needs to be regularly disassembled for cleaning. Generally, the inflation valve is threadedly connected to the threaded hole on the tank body through screws. Frequent disassembly may wear the threaded hole, affecting the reliability of the connection between the inflation valve and the tank body, and it is difficult to repair the worn threaded hole.

[0004] Therefore, it is urgent to propose a tooling fixture to solve the above technical problems. Content of the Utility Model

[0005] The utility model provides a tooling fixture. The gas discharged from the inflation valve first passes through the tooling fixture for filtration and then enters the tank body, reducing the risk of foreign object discharge in the tank, thereby improving the qualification rate of product testing and the safety of product operation. Moreover, both ends of the tooling fixture are respectively connected to the tank body and the inflation valve. When disassembling the inflation valve for cleaning, it will not affect the connection between the tank body and the tooling fixture, effectively avoiding the wear of the tank body.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The tooling fixture includes:

[0008] A tooling fixture body, with a first connection part and a second connection part respectively provided at both ends of the tooling fixture body. The first connection part is connected to the tank body, and the second connection part is detachably connected to the inflation valve. A gas passage communicating the outlet of the inflation valve and the inlet of the tank body is provided inside the tooling fixture body. On the tooling fixture body, an installation groove is provided at one end of the gas passage close to the inflation valve;

[0009] A filter element, installed in the installation groove.

[0010] Optionally, the filter element is a filter net, and the filter net abuts against the bottom wall of the mounting groove.

[0011] Optionally, a first connection hole is provided on the first connection part, a threaded hole is provided on the tank body, a first external thread is provided on the first connecting piece, the first connecting piece passes through the first connection hole and is connected to the threaded hole through the first external thread;

[0012] And / or, a second connection hole is provided on the second connection part, a third connection hole is provided at the air outlet end of the inflation valve, a second external thread is provided on the second connecting piece, the second connecting piece passes through the second connection hole and the third connection hole and is connected to the nut through the second external thread.

[0013] Optionally, a seal is provided between the air outlet end of the inflation valve and the tooling body.

[0014] Optionally, a gas flow detection piece is provided in the gas channel, and a display piece is provided on the outer wall of the tooling body, and the display piece is used to display the detection result of the gas flow detection piece.

[0015] Optionally, the gas flow detection piece is an air flow sensor or a pressure sensor.

[0016] Optionally, a detection tube is provided on the side wall of the tooling body, a detection channel communicated with the gas channel is provided in the detection tube, and the air flow sensor or the pressure sensor is arranged in the detection channel.

[0017] Optionally, the gas flow detection piece includes a rotating shaft arranged in the gas channel, an impeller arranged at one end of the rotating shaft, and a rotation speed sensor arranged at the other end of the rotating shaft, and the display piece is used to display the rotation speed value detected by the rotation speed sensor.

[0018] Optionally, an alarm device is further provided on the outer wall of the tooling body, and the alarm device is used to give an alarm when the detection result is less than a preset value.

[0019] The beneficial effects of the utility model:

[0020] The present utility model provides a tooling, which includes a tooling body and a filter element. The tooling body is connected to the tank body through a first connecting portion, and is detachably connected to the inflation valve through a second connecting portion. A gas passage communicating the air outlet of the inflation valve and the air inlet of the tank body is provided inside the tooling body. A filter element is provided at one end of the gas passage close to the inflation valve. The gas discharged from the air outlet of the inflation valve enters the gas passage after being filtered by the filter element, and enters the tank body after passing through the gas passage. By filtering the gas discharged from the inflation valve through the filter element, the risk of metal debris in the inflation valve entering the tank body can be reduced, thereby reducing the risk of foreign object power generation caused by the entry of metal debris into the tank body, and improving the qualification rate of product tests and the safety of product operation.

[0021] Moreover, when it is necessary to clean the inflation valve and the filter element, only the inflation valve needs to be detached from the second connecting portion, and there is no need to separate the first connecting portion from the tank body. Therefore, it is possible to avoid wearing the tank body due to the disassembly between the first connecting portion and the tank body, and improve the connection reliability between the first connecting portion and the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments of the present utility model. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the embodiments of the present utility model and these drawings.

[0023] Figure 1 is an exploded view of the tooling, inflation valve and tank body provided in Embodiment 1 of the present utility model;

[0024] Figure 2 is an assembly drawing of the tooling, inflation valve and tank body provided in Embodiment 1 of the present utility model;

[0025] Figure 3 is a partial cross-sectional view of the tooling provided in Embodiment 1 of the present utility model;

[0026] Figure 4 is a partial cross-sectional view of the tooling provided in Embodiment 2 of the present utility model.

[0027] In the figure:

[0028] 10, tank body; 20, inflation valve; 30, pipeline joint;

[0029] 100, tooling body; 110, first connecting portion; 111, first connecting hole; 120, second connecting portion; 121, second connecting hole; 130, gas passage; 140, installation groove; 150, first connecting piece; 160, second connecting piece; 170, nut;

[0030] 200, Filter element; 300, Gas flow detection element; 310, Rotating shaft; 320, Impeller; 330, Rotation speed sensor; 340, Connecting column; 400, Display element; 500, Detection tube; 510, Detection channel; 600, Alarm device. Detailed implementation mode

[0031] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.

[0032] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] In the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0034] In the description of this embodiment, the orientation or positional relationship such as "above", "below", "left", and "right" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] Embodiment 1

[0036] This embodiment provides a tooling. The gas discharged from the inflation valve first passes through the tooling for filtration and then enters the tank body, reducing the risk of foreign object discharge in the tank, thereby improving the qualification rate of product tests and the safety of product operation. Moreover, both ends of the tooling are respectively connected to the tank body and the inflation valve. When disassembling the inflation valve for cleaning, it will not affect the connection between the tank body and the tooling, effectively avoiding the wear of the tank body.

[0037] Specifically, as Figures 1 - 3 shown, the tooling includes a tooling body 100 and a filter element 200. Among them, a first connection portion 110 and a second connection portion 120 are respectively provided at both ends of the tooling body 100. The first connection portion 110 is connected to the tank body 10, and the second connection portion 120 is detachably connected to the inflation valve 20. A gas passage 130 communicating the air outlet of the inflation valve 20 and the air inlet of the tank body 10 is provided in the tooling body 100. On the tooling body 100, an installation groove 140 is provided at one end of the gas passage 130 close to the inflation valve 20, and the filter element 200 is installed in the installation groove 140.

[0038] When it is necessary to fill the insulating gas into the tank body 10, connect the pipeline joint 30 of the inflation device to the air inlet end of the inflation valve 20, and then start the inflation device. The gas discharged from the air outlet of the inflation valve 20 will first pass through the filter element 200, enter the gas passage 130 after being filtered by the filter element 200, and finally enter the tank body 10. With such a setting, the filter element 200 can prevent the metal debris generated by the wear between the pipeline joint 30 and the inflation valve 20 from entering the tank body 10, reducing the risk of foreign object discharge caused by the metal debris entering the tank body 10, and improving the qualification rate of product tests and the safety of product operation. Moreover, when it is necessary to clean the inflation valve 20 and the filter element 200, only need to disassemble the inflation valve 20 from the second connection portion 120, without separating the first connection portion 110 from the tank body 10. Therefore, it can avoid the wear of the tank body 10 due to the disassembly between the first connection portion 110 and the tank body 10, and improve the connection reliability between the first connection portion 110 and the tank body 10.

[0039] It can be understood that this tooling can be used for the insulation test of products.

[0040] Optionally, continue to refer to Figure 1 , the filter element 200 is a filter net, and the filter net abuts against the bottom wall of the installation groove 140. The structure and installation of this filter element 200 are relatively convenient, and it is also convenient to disassemble and clean the filter net subsequently.

[0041] Optionally, the filter net can be a filter net with a diameter of 20 mm and 100 meshes. Of course, the model of the filter net can also be other, which can be set according to actual needs, and this application does not make specific limitations.

[0042] Further, continue to refer toFigure 2 and Figure 3 , in a possible embodiment, a first connection hole 111 is provided on the first connection portion 110, a threaded hole is provided on the tank body 10, a first external thread is provided on the first connecting member 150, the first connecting member 150 passes through the first connection hole 111, and is connected to the threaded hole through the first external thread. The connection between the first connection portion 110 and the tank body 10 is realized by means of threaded connection, the structure is simple, the installation and disassembly are relatively convenient, and for the tank body 10 without this tooling, the inflation valve 20 is also connected to the tank body 10 in this way. Therefore, it is not necessary to change the original structure of the tank body 10, which is beneficial to reducing the transformation cost.

[0043] Optionally, the first connecting member 150 is a screw.

[0044] Further, continue to refer to Figure 2 and Figure 3 , in another possible embodiment, a second connection hole 121 is provided on the second connection portion 120, a third connection hole is provided at the air outlet end of the inflation valve 20, a second external thread is provided on the second connecting member 160, the second connecting member 160 passes through the second connection hole 121 and the third connection hole, and is connected to the nut 170 through the second external thread. The detachable connection between the second connection portion 120 and the inflation valve 20 is realized through the second connecting member 160 and the nut 170, the structure is simple, the installation and disassembly are relatively convenient, and the third connection hole on the inflation valve 20 and the second connection hole 121 on the second connection portion 120 will not be damaged during the process of disassembling the inflation valve 20, which protects the inflation valve 20 and the tooling body 100 to a certain extent, and thus extends the service life of the inflation valve 20 and this tooling.

[0045] Optionally, the second connecting member 160 is a bolt.

[0046] In this embodiment, a first connection hole 111 is provided on the first connection portion 110, a threaded hole is provided on the tank body 10, a first external thread is provided on the first connecting member 150, the first connecting member 150 passes through the first connection hole 111, and is connected to the threaded hole through the first external thread, and a second connection hole 121 is provided on the second connection portion 120, a third connection hole is provided at the air outlet end of the inflation valve 20, a second external thread is provided on the second connecting member 160, the second connecting member 160 passes through the second connection hole 121 and the third connection hole, and is connected to the nut 170 through the second external thread.

[0047] Further, a seal (not shown in the figure) is provided between the air outlet end of the inflation valve 20 and the tooling body 100. By providing the seal, the sealing performance between the inflation valve 20 and the tooling body 100 can be improved, the risk of gas leakage can be reduced, and thus the inflation efficiency can be ensured.

[0048] Optionally, the seal is an O-ring. An annular groove can be provided on the inflation valve 20 or the tooling body 100, and the O-ring is installed in the annular groove to improve the reliability of the O-ring installation, thereby improving the sealing reliability between the inflation valve 20 and the tooling body 100.

[0049] Further, referring to Figure 2 and Figure 3 Since the filter element 200 may be blocked by metal debris after long-term use of the tooling, more metal debris may enter the inflation valve 20 and affect its use. It is necessary to clean the inflation valve 20 and the filter element 200 to ensure the inflation efficiency and avoid damage to the inflation valve 20. Therefore, a gas flow detection component 300 is provided in the gas passage 130. The gas flow detection component 300 is used to detect the gas flow parameters in the gas passage 130, and judge whether it is necessary to clean the inflation valve 20 and the filter element 200 according to the detection result to ensure the timeliness of cleaning. Moreover, a display component 400 is also provided on the outer wall of the tooling body 100. The display component 400 is used to display the detection result of the gas flow detection component 300. Specifically, when the detection result displayed by the display component 400 is less than the preset value, it means that there is a lot of metal debris accumulation, and it is necessary to clean the filter element 200 and the inflation valve 20.

[0050] Optionally, in a possible embodiment, the gas flow detection component 300 is an air flow sensor. The air flow sensor can detect the real-time gas flow in the gas passage 130, and the display component 400 is used to display the real-time gas flow. When the real-time gas flow is less than the preset gas flow, it indicates that the filter element 200 and the inflation valve 20 are severely blocked. At this time, inflation needs to be stopped and the inflation valve 20 and the filter element 200 need to be cleaned.

[0051] Optionally, in another possible embodiment, the gas flow detection component 300 is a pressure sensor. The pressure sensor can detect the real-time gas pressure in the gas passage 130, and the display component 400 is used to display the real-time gas pressure. When the real-time gas pressure is less than the preset gas pressure, it indicates that the filter element 200 and the inflation valve 20 are severely blocked. At this time, inflation needs to be stopped and the inflation valve 20 and the filter element 200 need to be cleaned.

[0052] Of course, in other embodiments, the gas flow detection component 300 can also be selected as others, which can be set according to actual needs, and the present application does not make specific limitations.

[0053] Further, referring to Figure 3, a detection tube 500 is provided on the side wall of the tooling body 100. A detection channel 510 communicating with the gas channel 130 is provided in the detection tube 500, and an air flow sensor or a pressure sensor is arranged in the detection channel 510. By providing the detection channel 510, the air flow sensor or the pressure sensor does not need to extend into the gas channel 130, avoiding the air flow sensor or the pressure sensor from obstructing the gas flow in the gas channel 130.

[0054] Further, referring to Figure 2 and Figure 3 , an alarm device 600 is further provided on the outer wall of the tooling body 100. The alarm device 600 is used to give an alarm when the detection result is less than a preset value. By providing the alarm device 600, timely reminder can be given to the staff, avoiding untimely cleaning due to the staff not paying attention to the display 400.

[0055] Optionally, the alarm device 600 can be an audible and visual alarm. The audible and visual alarm can not only give a sound alarm but also give a light signal alarm, and the alarm reliability is relatively good.

[0056] Embodiment 2

[0057] This embodiment provides a tooling, which has substantially the same structure as that of Embodiment 1, and is only improved on the basis of Embodiment 1. Therefore, only the differences between the two are described here, and the same structures as those in Embodiment 1 are not elaborated here.

[0058] Specifically, as Figure 4 shown, in this embodiment, the gas flow detection member 300 includes a rotating shaft 310 arranged in the gas channel 130, an impeller 320 arranged at one end of the rotating shaft 310, and a rotational speed sensor 330 arranged at the other end of the rotating shaft 310. The display 400 is used to display the rotational speed value detected by the rotational speed sensor 330. When the gas introduced into the gas channel 130 passes through the impeller 320, it will drive the impeller 320 to rotate. The rotation of the impeller 320 will cause the rotating shaft 310 to rotate together. The rotational speed sensor 320 is used to obtain the real-time rotational speed of the rotating shaft 310. The gas flow rate in the gas channel 130 can be known through the rotational speed. For example, if the gas flow rate is fast, the rotational speed of the rotating shaft 310 is fast. Therefore, when the rotational speed value displayed by the display 400 is lower than the preset rotational speed value, it indicates that the filter element 200 and the inflation valve 20 are seriously blocked. At this time, the inflation needs to be stopped and the inflation valve 20 and the filter element 200 need to be cleaned.

[0059] Optionally, referring to Figure 4 , in this embodiment, a connecting column 340 is hermetically penetrated through the side wall of the tooling body 100. A shaft sleeve is provided at one end of the connecting column 340, and the rotating shaft 310 is rotatably installed in the shaft sleeve. The display 400 can be arranged at the other end of the connecting column 340.

[0060] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. Tooling, characterized in that, Including: A tooling body (100), with a first connecting portion (110) and a second connecting portion (120) respectively provided at both ends of the tooling body (100). The first connecting portion (110) is connected to the tank body (10), and the second connecting portion (120) is detachably connected to the inflation valve (20). A gas passage (130) communicating the air outlet of the inflation valve (20) and the air inlet of the tank body (10) is provided inside the tooling body (100). On the tooling body (100), an installation groove (140) is provided at one end of the gas passage (130) close to the inflation valve (20). A filter element (200), installed in the installation groove (140).

2. The tooling according to claim 1, characterized in that, The filter element (200) is a filter net, and the filter net abuts against the bottom wall of the installation groove (140).

3. The tooling according to claim 1, characterized in that, A first connection hole (111) is provided on the first connecting portion (110), a threaded hole is provided on the tank body (10), a first external thread is provided on the first connecting member (150), and the first connecting member (150) passes through the first connection hole (111) and is connected to the threaded hole through the first external thread. And / or, a second connection hole (121) is provided on the second connecting portion (120), a third connection hole is provided at the air outlet end of the inflation valve (20), a second external thread is provided on the second connecting member (160), and the second connecting member (160) passes through the second connection hole (121) and the third connection hole and is connected to the nut (170) through the second external thread.

4. The tooling according to claim 1, characterized in that, A sealing member is provided between the air outlet end of the inflation valve (20) and the tooling body (100).

5. The tooling according to any one of claims 1-4, characterized in that, A gas flow detection member (300) is provided in the gas passage (130), and a display member (400) is provided on the outer wall of the tooling body (100). The display member (400) is used to display the detection result of the gas flow detection member (300).

6. The tooling according to claim 5, characterized in that, The gas flow detection member (300) is an air flow sensor or a pressure sensor.

7. The tooling according to claim 6, characterized in that, A detection tube (500) is provided on the side wall of the tooling body (100). A detection passage (510) communicating with the gas passage (130) is provided in the detection tube (500), and the air flow sensor or the pressure sensor is arranged in the detection passage (510).

8. The tooling according to claim 5, characterized in that, The gas flow detection member (300) includes a rotating shaft (310) provided in the gas passage (130), an impeller (320) provided at one end of the rotating shaft (310), and a rotational speed sensor (330) provided at the other end of the rotating shaft (310). The display member (400) is used to display the rotational speed value detected by the rotational speed sensor (330).

9. The tooling according to claim 5, wherein An alarm device (600) is further provided on the outer wall of the tooling body (100). The alarm device (600) is used to give an alarm when the detection result is less than a preset value.

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