Jig for detecting air leakage of single water meter window

Abstract

The utility model provides a water meter window monomer air leakage detection jig, which comprises a jig body, the upper end of the jig body is provided with a meter window clamping groove, the groove bottom of the meter window clamping groove is provided with a contact pin receding hole, the groove bottom of the meter window clamping groove is provided with a vent hole penetrating through the jig body, and a meter window is sealed in the meter window clamping groove through a first sealing ring. A first connecting base is arranged at the lower end of the jig body. The device is simple in structure, can bear the meter window, is connected with air leakage detection equipment, and facilitates the detection of a single product of the meter window.

Description

Technical Field

[0001] The utility model relates to the technical field of water meter processing, in particular to a water meter window monomer air leakage detection jig. Background Art

[0002] A kind of household water meter currently produced is that a glass meter window and a copper shell are pressed together by a pressing and sealing device.

[0003] When defective products are returned and need to be disassembled to confirm the cause, the copper shell needs to be cut open first and then confirmed whether the internal parts are damaged or leaking. In another case, when there are many defective products with leaks during the leakage detection project during the production process, it is also necessary to detect whether the meter window has leaks. The problem is that the disassembled meter window or the unused meter window of a single product cannot be directly placed on the leakage detection equipment for detection, and there are four contact pins welded on the upper part of the meter window. Whether the contact pins leak directly determines the quality of the meter window. It is now urgently necessary to design a fixture that can accommodate the meter window and connect to the leakage detection equipment to complete the meter window detection. Utility Model Content

[0004] According to the technical problem raised above, a water meter window single air leakage detection fixture is provided. The utility model provides a water meter window single air leakage detection fixture with a simple structure, which can accommodate the meter window and be connected with the air leakage detection equipment, so as to facilitate the detection of the single meter window.

[0005] In order to achieve the above purpose, the technical means adopted by the utility model are as follows:

[0006] A water meter window monomer air leakage detection fixture comprises a fixture body, wherein a window slot is arranged at the upper end of the fixture body, a stylus clearance hole is arranged at the bottom of the window slot, an air vent penetrating the body is arranged at the bottom of the window slot, the window is sealed to the window slot by a first sealing ring, and a first connecting seat is arranged at the lower end of the fixture body.

[0007] Furthermore, a groove for installing the first sealing ring is provided in the watch window slot.

[0008] Furthermore, it also includes a leakage detection device, wherein an external adapter tube is provided at the upper front end of the leakage detection device, and a second connecting seat adapted to the first connecting seat is provided at the upper end of the external adapter tube, and the first connecting seat and the second connecting seat are connected by a fixing clamp.

[0009] Further, the first connecting seat is an annular flange protruding from the radial direction of the fixture body, and the second connecting seat is an annular flange protruding from the radial direction of the external transfer tube.

[0010] Furthermore, a second sealing ring is arranged between the first connecting seat and the second connecting seat, and a mounting groove matched with the second sealing ring is opened on the second connecting seat.

[0011] Furthermore, a metal mesh is arranged in the middle of the second sealing ring.

[0012] Furthermore, the vent hole in the fixture body is communicated with the external transfer tube, and the external transfer tube is communicated with the inside of the air leakage detection device.

[0013] The utility model has the following advantages:

[0014] The utility model provides a water meter window single air leakage detection fixture, which includes a body, a meter window slot is arranged at the upper end of the fixture body, a stylus hole is arranged at the bottom of the meter window slot, a vent hole penetrating the body is opened at the bottom of the meter window slot, the meter window is sealed in the meter window slot by a first sealing ring, and a first connecting seat is arranged at the lower end of the fixture body. It has a simple structure, can accommodate the meter window and be connected to the air leakage detection equipment, and is convenient for detecting the single meter window. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the meter window air leakage detection fixture of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the first sealing ring of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the utility model without the first sealing ring and the meter window installed;

[0019] Figure 4 It is a schematic diagram of the structure of the utility model after the first sealing ring and the meter window are installed;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the air leakage detection device of the utility model;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the second sealing ring of the utility model;

[0022] Figure 7It is a three-dimensional structural schematic diagram of the utility model with the second sealing ring installed;

[0023] Figure 8 It is a schematic diagram of the structure of the utility model during detection.

[0024] In the figure: 1. Leakage detection equipment; 2. External adapter tube; 2.1. Second connecting seat; 2.2. Mounting groove; 2.3. Second sealing ring; 3. Leakage detection fixture; 3.1. First connecting seat; 3.2. Window slot; 3.3. Vent hole; 3.4. Stylus hole; 3.5. Groove; 3.6. First sealing ring; 4. Window; 4.1. Stylus; 5. Fixing clip. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] like Figure 1-8 As shown, a water meter window monomer air leakage detection fixture 3 includes a fixture body, a meter window slot 3.2 is arranged at the upper end of the body, a long stylus clearance hole 3.4 is arranged at the bottom of the meter window slot 3.2, and a vent hole 3.3 penetrating the body is opened at the bottom of the meter window slot 3.2. The vent hole 3.3 is used to discharge the air inside the fixture through the suction of the leakage detection device 1 during air leakage detection, and to adsorb and fix the meter window 4 in the meter window slot 3.2.

[0028] The watch window 4 is sealed in the watch window slot 3.2 by the first sealing ring 3.6. Specifically, the watch window 4 and the watch window slot 3.2 are gap-matched. A groove 3.5 for installing the first sealing ring 3.6 is provided in the watch window slot 3.2. The depth of the groove 3.5 is slightly smaller than the thickness of the first sealing ring 3.6 to ensure that the watch window 4 can be in close contact with the first sealing ring 3.6 after being placed in the fixture, so as to ensure that there is no air leakage during the detection process. When in use, the watch window 4 is sealed and connected in the watch window slot 3.2 to prevent the watch window 4 from moving during detection.

[0029] The lower end of the fixture body is provided with a first connection seat 3.1, and when in use, the first connection seat 3.1 is connected to the air leakage detection device 1. Its structure is relatively reasonable and convenient to connect.

[0030] The present embodiment also includes a gas leakage detection device 1, an external transfer tube 2 is provided at the upper front end of the gas leakage detection device 1, a second connection seat 2.1 adapted to the first connection seat 3.1 is provided at the upper end of the external transfer tube 2, and the first connection seat 3.1 is connected to the second connection seat 2.1 by a fixing clip 5. The vent hole 3.3 in the fixture body is connected to the external transfer tube 2, and the external transfer tube 2 is connected to the inside of the gas leakage detection device 1.

[0031] Specifically, the first connection seat 3.1 is a radial annular flange protruding from the body of the meter window single air leakage detection fixture 3, and the second connection seat 2.1 is a radial annular flange protruding from the external transfer tube 2. One end of the fixing clamp 5 is connected to the shaft, and the other end is rotated and clamped by a butterfly handle.

[0032] In order to prevent air leakage between the external transfer tube 2 and the air leakage detection fixture 3 during detection, a second sealing ring 2.3 is detachably arranged between the first connecting seat 3.1 and the second connecting seat 2.1, and a mounting groove 2.2 adapted to the second sealing ring 2.3 is opened on the second connecting seat 2.1.

[0033] In one of the preferred embodiments, a metal mesh is provided in the middle of the second sealing ring 2.3 to prevent foreign matter from being sucked into the device and causing damage.

[0034] When in use, first place the first sealing ring 3.6 into the groove 3.5 in the meter window card slot 3.2, then take a second sealing ring 2.3 and place it into the installation groove 2.2 on the external transfer tube 2 of the air leakage detection device 1, and ensure that the second sealing ring 2.3 is placed stably and located in the center of the external transfer tube 2. Finally, place the meter window air leakage detection fixture 3 with the first sealing ring 3.6 installed on the external transfer tube 2, fix it with the fixing clip 5, and then place a meter window 4 into the meter window card slot 3.2 of the meter window air leakage detection fixture 3, ensure that the stylus 4.1 is correctly placed in the stylus clearance hole 3.4, the meter window 4 is not tilted, and after it is in good contact with the first sealing ring 3.6, start the power supply of the air leakage detection device 1 to perform air leakage detection.

[0035] It should be noted that this embodiment can detect the leakage of a single product of the meter window 4. When there are defective returned products that need to be analyzed, this embodiment can be used to confirm whether the single product of the meter window 4 has a defective leakage. Moreover, when the entire batch of products has frequent defective leakage, this fixture can also be used to detect whether a single product has a batch defect.

[0036] It should be noted that the parts not described in detail in the present invention are prior art.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "install", "set", "connect", "connect", "fix", "screw" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0042] In the description of the present utility model, the term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A water meter window monomer leakage detection fixture, characterized by: The jig body comprises a fixture body, wherein a watch window slot is arranged at the upper end of the fixture body, a stylus clearance hole is arranged at the bottom of the watch window slot, a vent hole penetrating the body is opened at the bottom of the watch window slot, the watch window is sealed to the watch window slot by a first sealing ring, and a first connecting seat is arranged at the lower end of the fixture body.

2. According to claim 1, a water meter window monomer air leakage detection fixture is characterized by: A groove for installing the first sealing ring is arranged in the watch window slot.

3. According to claim 1, a water meter window monomer air leakage detection fixture is characterized by: It also includes a leakage detection device, wherein an external transfer tube is provided at the upper front end of the leakage detection device, a second connection seat adapted to the first connection seat is provided at the upper end of the external transfer tube, and the first connection seat and the second connection seat are connected by a fixing clamp.

4. According to claim 3, a water meter window monomer air leakage detection fixture is characterized by: The first connection seat is an annular flange protruding from the radial direction of the fixture body, and the second connection seat is an annular flange protruding from the radial direction of the external transfer tube.

5. According to claim 3, a water meter window monomer air leakage detection fixture is characterized by: A second sealing ring is arranged between the first connecting seat and the second connecting seat, and a mounting groove matched with the second sealing ring is opened on the second connecting seat.

6. A water meter window monomer air leakage detection fixture according to claim 5, characterized in that: A metal mesh is arranged in the middle of the second sealing ring.

7. A water meter window monomer air leakage detection fixture according to any one of claims 3 to 6, characterized in that: The vent hole in the fixture body is communicated with the external transfer tube, and the external transfer tube is communicated with the inside of the air leakage detection device.

Images