Sealing detection positioning tool and sealing detection assembly

Abstract

The utility model relates to the technical field of gas meter detection, and discloses a sealing detection positioning tool and a sealing detection assembly, and the tool comprises a connecting device which is provided with a connecting groove; the positioning mechanism comprises a positioning device and a limiting device, the positioning device is connected with the connecting device and provided with a positioning groove, and the connecting groove and the positioning groove are matched to form a first clamping groove; the limiting device is detachably fixed between the connecting device and the positioning device; the limiting device is provided with a first limiting surface and a second limiting surface, and the distance between the first limiting surface and the second limiting surface in the second direction is smaller than the size of the positioning groove; and the first limiting surface, the second limiting surface, the connecting groove and the positioning groove form a second clamping groove. In the assembling process, whether the limiting device is assembled between the connecting device and the positioning device or not is selected according to the specifications of the interfaces of the different detected meters, the tool does not need to be integrally replaced, and therefore the assembling efficiency of the interfaces of the detected meters of the different specifications and the detection equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas meter testing technology, and in particular to a sealing detection positioning tool and sealing detection component. Background Technology

[0002] Before leaving the factory, ultrasonic gas meters need to undergo leak testing to check the sealing of the base meter.

[0003] In the existing technology, before the production workshop conducts a sealing test, it is necessary to connect the interface of the test instrument to the testing equipment through a positioning device before the sealing test can be carried out. However, for the interfaces of test instruments with different specifications, different positioning devices need to be replaced to complete the assembly with the testing equipment, which is time-consuming and labor-intensive, thus reducing the efficiency of leak detection of the test instrument.

[0004] Therefore, how to improve the assembly efficiency of different specifications of test table interfaces and testing equipment has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] The purpose of this invention is to at least solve the technical problem of how to improve the assembly efficiency of interfaces of different specifications of test forms and testing equipment. This purpose is achieved through the following technical solution:

[0006] In a first aspect, this utility model proposes a sealing detection positioning fixture for positioning the interface of the tested surface with a sealing detection device. The sealing detection positioning fixture includes: a connecting device for connecting with the sealing detection device, the connecting device having a connecting groove; and a positioning mechanism including a positioning device and a limiting device. The positioning device is connected to the connecting device and arranged along a first direction with the connecting device. The positioning device has a positioning groove, and the connecting groove and the positioning groove cooperate to form a first slot. The first slot has a first effective space for engaging with the interface. Along the first direction, the limiting device is detachably fixed between the connecting device and the positioning device. The limiting device includes a first limiting part and a second limiting part spaced apart along a second direction. The second direction is perpendicular to the first direction. The end of the first limiting part near the second limiting part is a first limiting surface, and the end of the second limiting part near the first limiting part is a second limiting surface. The distance between the first limiting surface and the second limiting surface in the second direction is less than the size of the positioning groove in the second direction. The first limiting surface, the second limiting surface, the connecting groove, and the positioning groove form a second slot, and the second slot has a second effective space for engaging with the interface.

[0007] The sealing detection positioning tool is assembled first by connecting the connecting device with the sealing detection equipment, so that the sealing detection positioning tool is fixed relative to the sealing detection equipment; then, whether the limiting device is assembled between the connecting device and the positioning device is selected according to the specifications of the interfaces of different tables to be detected, if the limiting device is not needed, the interface of the table to be detected is clamped into the first clamping groove, and if the limiting device is needed, the interface of the table to be detected is clamped into the second clamping groove. Therefore, the sealing detection positioning tool can be applied to the tables to be detected with different interface specifications by selecting whether the limiting device is assembled, and when the tables to be detected with different interface specifications are encountered, the tool does not need to be replaced as a whole, so that the assembly efficiency of the interfaces of the tables to be detected with different specifications and the detection equipment is improved.

[0008] In some embodiments of the present application, along the first direction, the positioning device and the connecting device have an assembly groove for accommodating the limiting device.

[0009] In some embodiments of the present application, the positioning device is provided with a positioning hole, the positioning hole is in communication with the assembly groove; the first limiting part is detachably connected with the assembly groove through a first fastener, the first fastener penetrates the positioning hole; the second limiting part is detachably connected with the assembly groove through a second fastener, the second fastener penetrates the positioning hole.

[0010] In some embodiments of the present application, the positioning hole is a strip-shaped hole, the assembly groove and the strip-shaped hole both extend along the second direction, and along the second direction, the first limiting part and the second limiting part can both move relative to the assembly groove.

[0011] In some embodiments of the present application, the strip-shaped hole includes a first hole and a second hole which are arranged at intervals along the second direction, the first limiting part is arranged correspondingly to the first hole, and the second limiting part is arranged correspondingly to the second hole.

[0012] In some embodiments of the present application, the limiting device further includes a third limiting part, the first limiting part is connected with the second limiting part through the third limiting part, the third limiting part has a limiting recess, the limiting recess, the first limiting surface and the second limiting surface form a limiting groove, the connecting groove, the positioning groove and the limiting groove form a third clamping groove, and the third clamping groove has a third effective space for clamping the interface.

[0013] In some embodiments of the present application, the depth direction of the connecting groove is a third direction, the third direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction; along the third direction, the side of the connecting device away from the connecting groove is a connecting bottom surface, and the distance between the limiting recess and the connecting bottom surface is greater than the distance between the positioning groove and the connecting bottom surface.

[0014] In some embodiments of the present application, the positioning device and the connecting device are detachably connected.

[0015] In some embodiments of the utility model, along the first direction, the side of the positioning device away from the connecting device is an operation surface, the operation surface is provided with an elastic member, and the elastic member can stretch and contract along a direction perpendicular to the operation surface.

[0016] In a second aspect, the utility model provides a kind of sealing detection assembly, including sealing detection equipment and the sealing detection positioning tool of any one described above, and the sealing detection positioning tool is connected with sealing detection equipment by connecting device.

[0017] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, which can be implemented according to the content of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0018] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become apparent to those of ordinary skill in the art. The drawings are for the purpose of illustrating the preferred embodiments only and are not to be considered as limiting the present utility model. Moreover, the same reference numerals are used throughout the drawings to designate the same parts. In the drawings:

[0019] Figure 1 A schematic view of the connecting device in the sealing detection positioning tool provided by the embodiments of the utility model is shown in the figure;

[0020] Figure 2 A schematic view of the positioning device in the sealing detection positioning tool provided by the embodiments of the utility model is shown in the figure at an angle;

[0021] Figure 3 A schematic view of the positioning device in the sealing detection positioning tool provided by the embodiments of the utility model is shown in the figure at another angle;

[0022] Figure 4 A structural schematic view of the limiting device in the sealing detection positioning tool provided by the embodiments of the utility model is shown in the figure;

[0023] Figure 5 A schematic view of the overall structure of the sealing detection positioning tool provided by the embodiments of the utility model is shown in the figure at an angle;

[0024] Figure 6 A schematic view of the overall structure of the sealing detection positioning tool provided by the embodiments of the utility model is shown in the figure at another angle;

[0025] Figure 7 A schematic view of the sealing detection positioning tool provided by the embodiments of the utility model is shown in the figure at an angle after removing the limiting device;

[0026] Figure 8 A schematic view of the sealing detection positioning tool provided by the embodiment of the utility model from another angle after the limiting device is removed;

[0027] Figure 9 A structure schematic view of the limiting device in another sealing detection positioning tool provided by the embodiment of the utility model;

[0028] Figure 10 A whole structure schematic view of another sealing detection positioning tool provided by the embodiment of the utility model.

[0029] The signs are as follows:

[0030] 100, sealing detection positioning tool;

[0031] 1000, connecting device; 1100, connecting groove; 1110, first connecting side wall; 1120, second connecting side wall; 1130, connecting recess;

[0032] 2000, positioning mechanism; 2100, limiting device; 2110, positioning groove; 2111, first positioning side wall; 2112, second positioning side wall; 2113, positioning recess; 2101, positioning chamfer; 2102, positioning threaded hole; 2120, assembly groove; 2121, assembly threaded hole; 2130, strip-shaped hole; 2131, first hole; 2132, second hole; 2140, operation face; 2200, limiting device; 2210, first limiting part; 2211, first limiting face; 2212, first limiting threaded hole; 2220, second limiting part; 2221, second limiting face; 2222, second limiting threaded hole; 2230, third limiting part; 2231, limiting recess; 2201, limiting chamfer; 2202, limiting groove;

[0033] 3000, first effective space;

[0034] 4000, second effective space;

[0035] 5000, third effective space. DETAILED DESCRIPTION

[0036] Exemplary embodiments of the present disclosure will be described below in greater detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is to be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0037] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0038] Although the terms first, second, third, and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second", and the like are used herein to describe a variety of elements, components, regions, layers and / or sections, and do not imply an order or sequence unless the context clearly indicates otherwise. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

[0039] For ease of description, spatial relationship terms as used in this specification are described with reference to the orientation of the device as shown in the drawings, such as "inner", "outer", "inner side", "outer side", "lower", "below", "upper", "above", and the like. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device is turned over, then an element described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Accordingly, the example term "below" can encompass both an orientation of above and below. The device can be additionally oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0040] Figure 1 A schematic view of a connecting device in a sealing detection positioning tool provided by the utility model embodiment is shown in the figure; Figure 2 A schematic view of a positioning device in a sealing detection positioning tool provided by the utility model embodiment is shown in the figure; Figure 3The schematic view of the positioning device in the sealing detection positioning tool according to the embodiment of the utility model under another angle is provided. Figure 4 The structural schematic view of the limiting device in the sealing detection positioning tool according to the embodiment of the utility model is provided. Figure 5 The schematic view of the overall structure of the sealing detection positioning tool according to the embodiment of the utility model under one angle is provided. Figure 6 The schematic view of the overall structure of the sealing detection positioning tool according to the embodiment of the utility model under another angle is provided. Figure 7 The schematic view of the sealing detection positioning tool according to the embodiment of the utility model after removing the limiting device under one angle is provided. Figure 8 The schematic view of the sealing detection positioning tool according to the embodiment of the utility model after removing the limiting device under another angle is provided.

[0041] As Figures 1 to 8 The utility model embodiment provides a sealing detection positioning tool 100 for realizing the positioning between the interface of the detected table and the sealing detection equipment, sealing detection positioning tool 100 includes: connecting device 1000 for connecting with sealing detection equipment, connecting device 1000 has connecting recess 1100, and positioning mechanism 2000 includes positioning device 2100 and limiting device 2200, positioning device 2100 is connected with connecting device 1000 and is arranged with connecting device 1000 along the first direction, and positioning device 2100 has positioning recess 2110, connecting recess 1100 and positioning recess 2110 cooperate and constitute first clamping slot, and first clamping slot has first effective space 3000 for being clamped with the interface, along the first direction, limiting device 2200 is detachably fixed between connecting device 1000 and positioning device 2100, limiting device 2200 includes the first limiting portion 2210 and the second limiting portion 2220 that are spaced apart along the second direction, and the second direction is perpendicular to the first direction, and the first limiting portion 2210 is close to the first limiting face 2211 of the end of the second limiting portion 2220, and the second limiting portion 2220 is close to the second limiting face 2221 of the end of the first limiting portion 2210, and the distance of first limiting face 2211 and second limiting face 2221 in the second direction is less than the size of connecting recess 1100 in the second direction, first limiting face 2211, second limiting face 2221, connecting recess 1100 and positioning recess 2110 constitute second clamping slot, and second clamping slot has second effective space 4000 for being clamped with the interface.

[0042] In this embodiment, when assembling the sealing detection positioning tool 100, first connect the connecting device 1000 with the sealing detection equipment, so that the sealing detection positioning tool 100 as a whole is relatively fixed with the position of the sealing detection equipment; then, according to the specifications of the interfaces of different tables to be detected, it can be selected whether to assemble the limiting device 2200 between the connecting device 1000 and the positioning device 2100, if the limiting device 2200 is not needed, the interface of the table to be detected is clamped into the first clamping groove, if the limiting device 2200 is needed, the interface of the table to be detected is clamped into the second clamping groove.

[0043] In order to more clearly reflect the effect of the sealing detection positioning tool 100, the following will take the table to be detected as an example, which is a gas meter with a flange plate at the interface (for convenience of description, hereinafter referred to as a first gas meter) and a gas meter without a flange plate at the interface (for convenience of description, hereinafter referred to as a second gas meter) to more specifically describe the use process of the sealing detection positioning tool 100:

[0044] First, connect the connecting device 1000 with the sealing detection equipment, for example, a first threaded hole can be provided on the sealing detection equipment, and a second threaded hole (not shown in the figure) is provided on the connecting device 1000, and the connecting device 1000 is connected with the sealing detection equipment through a screw, so that the sealing detection positioning tool 100 as a whole is relatively fixed with the position of the sealing detection equipment;

[0045] When the first gas meter needs to be assembled, since the interface is provided with a flange plate, the space required for clamping is large, therefore, the sealing detection positioning tool 100 does not need to assemble the limiting device 2200, and directly clamps the interface of the first gas meter into the first effective space 3000 of the first clamping groove, as shown in Figure 8 , that is, the assembly of the first gas meter and the sealing detection positioning tool 100 is completed;

[0046] When the second gas meter needs to be assembled, since the interface is not provided with a flange plate, it means that the space required for clamping is small, if the first clamping groove is still used to clamp the interface of the second gas meter, the two cannot match, that is, the interface of the second gas meter cannot be stably clamped in the first clamping groove; therefore, at this time, the limiting device 2200 can be assembled between the connecting device 1000 and the positioning device 2100, so that the interface of the second gas meter is clamped into the second effective space 4000 of the second clamping groove, as shown in Figure 6As shown, the assembly of the second gas meter and the sealing detection positioning tool 100 can be completed; it can be easily understood that, since the distance between the first limiting surface 2211 and the second limiting surface 2221 in the second direction is less than the size of the positioning groove 2110 in the second direction, the volume of the second effective space 4000 of the second clamping groove is less than the first effective space 3000 of the first clamping groove, and the distance between the first limiting surface 2211 and the second limiting surface 2221 in the second direction can be specifically set according to actual needs, so that the interface of the second gas meter can be stably clamped into the second clamping groove.

[0047] Therefore, the sealing detection positioning tool 100 can be suitable for the detected meters with different interface specifications by selecting whether to assemble the limiting device 2200, and when encountering detected meters with different interface specifications, the tool does not need to be replaced as a whole, thereby improving the assembly efficiency of the interfaces of the detected meters with different specifications and the detection equipment.

[0048] Next, in order to more clearly understand the structure of the connecting groove 1100 and the positioning groove 2110, the connecting groove 1100 and the positioning groove 2110 are more specifically illustrated as follows:

[0049] The connecting groove 1100 can include a first connecting side wall 1110, a second connecting side wall 1120, and a connecting recess 1130, as shown in Figure 1 The positioning groove 2110 can include a first positioning side wall 2111, a second positioning side wall 2112, and a positioning recess 2113, as shown in Figure 2 It can be easily understood that the shape and curvature of the connecting recess 1130 and the positioning recess 2113 should match the shape and curvature of the outer wall of the interface of the detected meter to be matched, so that the interface of the detected meter can be clamped in the first clamping groove or the second clamping groove;

[0050] Among them, along the second direction, the distance between the first connecting side wall 1110 and the second connecting side wall 1120 can be set to be greater than the distance between the first positioning side wall 2111 and the second positioning side wall 2112; that is, the distance between the first connecting side wall 1110 and the second connecting side wall 1120 plays a role in avoiding the detected meter, and the distance between the first positioning side wall 2111 and the second positioning side wall 2112 needs to be determined according to the specification of the interface of the detected meter, and the connecting recess 1130 and the positioning recess 2113 can both play a supporting role for the interface of the detected meter under appropriate working conditions.

[0051] In addition, as shown in Figure 2 and Figure 4As shown, the first positioning side wall 2111 and the second positioning side wall 2112 can be provided with a positioning chamfer 2101, so that the interface of the detected meter is inserted into the first clamping groove, and the positioning chamfer 2101 plays a guiding role, and to a certain extent, the assembly between the detected meter and the sealing detection positioning tool 100 is more convenient. Similarly, the first limiting part 2210 and the second limiting part 2220 can be provided with a limiting chamfer 2201, so that the interface of the detected meter is inserted into the second clamping groove, and the effect of the limiting chamfer 2201 is similar to that of the positioning chamfer 2101, which will not be described here.

[0052] Reference Figure 5 And Figure 7 According to an optional embodiment of the utility model, along the first direction, the positioning device 2100 and the connecting device 1000 have an assembly groove 2120 for accommodating the limiting device 2200.

[0053] In this embodiment, the assembly groove 2120 can facilitate the assembly of the limiting device 2200. When a detected meter with a smaller interface size needs to be assembled, the limiting device 2200 is placed in the assembly groove 2120, and the interface of the detected meter can be clamped in the second clamping groove.

[0054] The size of the assembly groove 2120 in the first direction can be set to allow the limiting device 2200 to be clamped in the assembly groove 2120. In this way, the assembly of the limiting device 2200 is facilitated, and the assembly stability of the limiting device 2200 is also ensured.

[0055] Specifically, one side of the positioning device 2100 close to the connecting device 1000 can be hollowed out, and the part cooperates with one side of the connecting device 1000 to form the assembly groove 2120.

[0056] According to an optional embodiment of the utility model, the positioning device 2100 is provided with a positioning hole, the positioning hole is in communication with the assembly groove 2120; the first limiting part 2210 is detachably connected with the assembly groove 2120 through a first fastener, and the first fastener penetrates the positioning hole; the second limiting part 2220 is detachably connected with the assembly groove 2120 through a second fastener, and the second fastener penetrates the positioning hole.

[0057] In this embodiment, the first limiting part 2210 can be more stably fixed to the assembly groove 2120 through the first fastener, and the second limiting part 2220 can be more stably fixed to the assembly groove 2120 through the second fastener, thereby improving the stability of the sealing detection positioning tool 100 as a whole.

[0058] Specifically, referring to Figures 2 to 8According to an optional embodiment of the utility model, the positioning hole is a strip hole 2130, the assembly groove 2120 and the strip hole 2130 all extend along the second direction, along the second direction, the first limiting part 2210 and the second limiting part 2220 can all move relative to the assembly groove 2120.

[0059] In the embodiment, in order to make the sealing detection positioning tool 100 can be adapted to more interface specifications of the detected table, the distance between the first limiting part 2210 and the second limiting part 2220 is set to be adjustable, so that the relative position of the first limiting part 2210 and the second limiting part 2220 in the second direction can be adjusted according to different requirements of actual working conditions, thereby adjusting the distance between the first limiting surface 2211 and the second limiting surface 2221, that is, the size of the second effective space 4000 of the second clamping groove in the second direction can be adjusted to be suitable for more interface specifications of the detected table.

[0060] Specifically, since the first limiting part 2210 and the second limiting part 2220 are two independent parts, when the size of the second effective space 4000 in the second direction needs to be adjusted, the first limiting part 2210 and the second limiting part 2220 can be moved in the second direction respectively until the distance between the first limiting surface 2211 and the second limiting surface 2221 in the second direction is adjusted to be matched with the interface size of the detected table, and then the first limiting part 2210 is fixed to the assembly groove 2120 by the first fastener, and the second limiting part 2220 is fixed to the assembly groove 2120 by the second fastener.

[0061] Continuing to refer to Figures 2 to 8 It is easy to understand that the first fastener can be a first bolt, and the second fastener can be a second bolt, an assembly threaded hole 2121 can be arranged in the assembly groove 2120, a plurality of first limiting threaded holes 2212 can be arranged on the first limiting part 2210 along the second direction, and a plurality of second limiting threaded holes 2222 can be arranged on the second limiting part 2220 along the second direction, so as to facilitate the selection of the positions of the first limiting part 2210 and the second limiting part 2220 in the second direction.

[0062] As Figure 2 shown, according to an optional embodiment of the utility model, the strip hole 2130 includes a first hole 2131 and a second hole 2132 arranged at intervals along the second direction, the first limiting part 2210 is arranged corresponding to the first hole 2131, and the second limiting part 2220 is arranged corresponding to the second hole 2132.

[0063] In the embodiment, the way of dividing the strip-shaped hole 2130 into the first hole 2131 and the second hole 2132 can reduce the loss of the strength of the positioning device 2100, and the first limiting part 2210 is arranged corresponding to the first hole 2131, and the second limiting part 2220 is arranged corresponding to the second hole 2132, and the adjustment of the relative position between the first limiting surface 2211 and the second limiting surface 2221 in the second direction is not affected.

[0064] It should be noted that, although the positioning hole is taken as the strip-shaped hole 2130 in the above embodiment, the shape and the number of the positioning hole are not required in actual working conditions.

[0065] For example, the positioning hole can also include a plurality of circular holes extending in the second direction, and a plurality of assembly threaded holes 2121 are arranged in the assembly slot 2120, and the assembly threaded holes 2121 are arranged corresponding to the circular holes one by one; in this way, the adjustment of the positions of the first limiting part 2210 and the second limiting part 2220 in the second direction can also be realized, and only the first fastener or the second fastener needs to be arranged in different circular holes according to the different specific positions of the first limiting part 2210 and the second limiting part 2220 in each assembly.

[0066] As can be seen from the above, the first limiting part 2210 and the second limiting part 2220 are arranged at intervals in the second direction; however, it should be noted that the description of the interval arrangement does not mean that there is no connection between the first limiting part 2210 and the second limiting part 2220, that is, the first limiting part 2210 and the second limiting part 2220 are not necessarily two completely independent parts, and the structure of the limiting device 2200 is not limited to this in actual working conditions, for example, the limiting device 2200 can also be an integrally formed whole structure.

[0067] Figure 9 Another structure diagram of the limiting device in the sealing detection positioning tool is provided for the embodiment of the utility model, referring to Figure 9 , specifically, according to an optional embodiment of the utility model, the limiting device 2200 further includes a third limiting part 2230, the first limiting part 2210 is connected with the second limiting part 2220 through the third limiting part 2230, the third limiting part 2230 has a limiting recess 2231, the limiting recess 2231, the first limiting surface 2211 and the second limiting surface 2221 form a limiting groove 2202, the connecting groove 1100, the positioning groove 2110 and the limiting groove 2202 form a third clamping groove, and the third clamping groove has a third effective space 5000 for clamping with the interface.

[0068] In this embodiment, taking the second gas meter mentioned above as an example, when the second gas meter needs to be assembled, since there is no flange at its interface, it means that the space required for snap-fit ​​is small. At this time, the limiting device 2200 can be placed in the assembly groove 2120 between the connecting device 1000 and the positioning device 2100, so that the interface of the second gas meter can be snapped into the third effective space 5000 of the third slot, thereby completing the assembly of the second gas meter and the sealing detection positioning fixture 100.

[0069] It is easy to understand that the shape and curvature of the limiting recess 2231 should match the shape and curvature of the outer wall of the interface of the tested gauge so that the interface of the tested gauge can be snapped into the second slot.

[0070] Figure 10 This is a schematic diagram of the overall structure of another sealing detection and positioning fixture provided in an embodiment of the present invention, which is also referred to. Figure 9 and Figure 10 According to an optional embodiment of the present invention, the depth direction of the connecting groove 1100 is a third direction, which is perpendicular to the first direction and perpendicular to the second direction; along the third direction, the side of the connecting device 1000 away from the connecting groove 1100 is the connecting bottom surface, and the distance between the limiting recess 2231 and the connecting bottom surface is greater than the distance between the positioning groove 2110 and the connecting bottom surface.

[0071] In this embodiment, along the third direction, the distance between the limiting recess 2231 and the connecting bottom surface is greater than the distance between the positioning groove 2110 and the connecting bottom surface. This means that the final position of the limiting recess 2231 will be higher than that of the positioning recess 2113. In other words, when the interface of the test instrument can be snapped into the third slot, the interface is in direct contact with the limiting recess 2231 and not with the positioning recess 2113. That is to say, this sealing test positioning fixture 100 is suitable for another type of test instrument with irregular interface size and structure in the third direction.

[0072] Therefore, this configuration allows the sealing inspection positioning fixture 100 to be applied to test surfaces with more different interface specifications, further increasing the application scenarios of the sealing inspection positioning fixture 100.

[0073] It is easy to understand that the distance between the limiting recess 2231 and the connecting bottom surface and the distance between the positioning groove 2110 and the connecting bottom surface should be determined according to the actual working conditions. It is sufficient to meet the requirement of being able to accommodate more gauges to be inspected under the premise of assembling a single sealing inspection positioning fixture 100.

[0074] According to an optional embodiment of the present invention, the positioning device 2100 and the connecting device 1000 are detachably connected.

[0075] In the embodiment, it is easy to understand that the detachable connection of the positioning device 2100 and the connecting device 1000 facilitates the replacement and maintenance and facilitates the arrangement of the assembly groove 2120 between the two.

[0076] Specifically, as shown in the drawings, a positioning threaded hole 2102 can be arranged on the positioning device 2100, and a connecting threaded hole (not shown in the drawings) can be arranged on the connecting device 1000, and the positioning device 2100 and the connecting device 1000 can be detachably connected through threaded connection. Figure 2

[0077] It is easy to understand that the threaded connection described above is only an example of a feasible scheme, for example, the positioning device 2100 and the connecting device 1000 can also be magnetically attached through a magnet to achieve detachable connection, and finally meet the requirements of facilitating the connection and disconnection of the positioning device 2100 and the connecting device 1000, and the specific connection mode is not limited.

[0078] According to an optional embodiment of the utility model, along the first direction, the side of the positioning device 2100 away from the connecting device 1000 is an operation surface 2140, and the operation surface 2140 is provided with an elastic member (not shown in the drawings), and the elastic member can be stretched and contracted in a direction perpendicular to the operation surface 2140.

[0079] In the embodiment, it is easy to understand that when the detected table and the sealing detection positioning tool 100 are assembled, the side wall of one end of the detected table will be attached to the operation surface 2140. In order to facilitate the assembly and disassembly of the detected table, the elastic member is arranged on the operation surface 2140. The elastic member can provide a proper pressure between the detected table and the sealing detection positioning tool 100, guarantee the sealing property, and also provide certain assistance and guiding effect when the interface of the detected table is inserted and pulled out of the sealing detection positioning tool 100.

[0080] Specifically, the elastic member can be a spring column, which has good elasticity and low cost.

[0081] The utility model embodiment further provides a sealing detection assembly, which comprises a sealing detection device and any one of the sealing detection positioning tools 100 described above, and the sealing detection positioning tool 100 is connected with the sealing detection device through the connecting device 1000.

[0082] In the embodiment, the sealing detection assembly has the same beneficial effects as any one of the sealing detection positioning tools 100 described above, and can improve the assembly efficiency of the interfaces of the detected tables of different specifications and the detection device. The specific principle can be referred to the analysis of any one of the sealing detection positioning tools 100 described above, and will not be described here.

[0083] ​Wherein, taking the detected meter as an ultrasonic gas meter as an example, a general ultrasonic gas meter is equipped with two interfaces; it is easy to understand that two sealing detection positioning tools 100 need to be assembled on the sealing detection equipment during assembly, and each sealing detection positioning tool 100 corresponds to an interface of the ultrasonic gas meter.

[0084] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A sealing detection positioning fixture, used to position the interface of the tested surface between itself and a sealing detection device, characterized in that, The sealing detection positioning tool comprises: a connecting device for connecting with the sealing detection device, the connecting device having a connecting groove; and a positioning mechanism comprising a positioning device and a limiting device, the positioning device being connected with the connecting device and arranged along a first direction with the connecting device, the positioning device having a positioning groove, the connecting groove and the positioning groove cooperating to form a first clamping groove, the first clamping groove having a first effective space for connecting with the interface card; along the first direction, the limiting device is detachably fixed between the connecting device and the positioning device; the limiting device comprises a first limiting part and a second limiting part arranged along a second direction, the second direction being perpendicular to the first direction, an end of the first limiting part close to the second limiting part being a first limiting surface, an end of the second limiting part close to the first limiting part being a second limiting surface, a distance between the first limiting surface and the second limiting surface in the second direction being smaller than a size of the positioning groove in the second direction; the first limiting surface, the second limiting surface, the connecting groove and the positioning groove form a second clamping groove, the second clamping groove having a second effective space for connecting with the interface card.

2. The seal detection positioning tool of claim 1, wherein, Along the first direction, the positioning device and the connecting device have an assembly groove for accommodating the limiting device.

3. The seal detection positioning tool of claim 2, wherein, The positioning device is provided with a positioning hole in communication with the assembly groove; the first limiting part is detachably connected with the assembly groove through a first fastener penetrating the positioning hole; the second limiting part is detachably connected with the assembly groove through a second fastener penetrating the positioning hole.

4. The seal detection positioning tool of claim 3, wherein, The positioning hole is a strip-shaped hole, the assembly groove and the strip-shaped hole extending along the second direction; along the second direction, the first limiting part and the second limiting part are movable relative to the assembly groove.

5. The seal detection positioning tool of claim 4, wherein, The strip-shaped hole comprises a first hole and a second hole arranged along the second direction, the first limiting part being arranged corresponding to the first hole, and the second limiting part being arranged corresponding to the second hole.

6. The seal detection positioning tool of claim 2, wherein, The limiting device further comprises a third limiting part, the first limiting part being connected with the second limiting part through the third limiting part, the third limiting part having a limiting recess, the limiting recess, the first limiting surface and the second limiting surface forming a limiting groove, the connecting groove, the positioning groove and the limiting groove forming a third clamping groove, the third clamping groove having a third effective space for connecting with the interface card.

7. The seal detection positioning tool of claim 6, wherein, A depth direction of the connecting groove is a third direction, the third direction being perpendicular to the first direction and perpendicular to the second direction; along the third direction, a side of the connecting device away from the connecting groove is a connecting bottom surface, and a distance between the limiting recess and the connecting bottom surface is greater than a distance between the positioning groove and the connecting bottom surface.

8. The seal detection positioning tool of claim 1, wherein, The positioning device and the connecting device are detachably connected.

9. The seal detection and positioning tool of any of claims 1-8, wherein, In the first direction, the side of the positioning device away from the connecting device is an operation surface, and the operation surface is provided with an elastic member capable of stretching and contracting in a direction perpendicular to the operation surface.

10. A seal detection assembly characterized by, The sealing detection positioning tool according to any one of claims 1-9 is connected with the sealing detection device through the connecting device.

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