Air tightness detection tool

Abstract

The utility model discloses an air tightness detection tool which comprises an airtight blank cap detachably arranged on the outer side of a cylinder, a baffle detachably arranged on the inner side of the cylinder, an outer side support arranged on the outer side of the cylinder and used for fixing the airtight blank cap, and an inner side support arranged on the inner side of the cylinder and used for fixing the baffle. And the outer side bracket is connected with the inner side bracket. The detection device is simple and practical in structure, can timely detect whether the sealing performance of the sealing ring meets the requirement or not, and improves the detection efficiency.

Description

Technical Field

[0001] This application relates to the field of airtightness testing technology, and in particular to an airtightness testing fixture. Background Technology

[0002] The tank body is composed of multiple cylinders, each requiring openings for manholes, loading ports, or unloading ports. To ensure airtightness, an outer sealing ring is installed on the outside of each opening, and an inner sealing ring on the inside. After installation, the airtightness must be tested. Current technology requires assembling the cylinders into a tank body, installing a top cover, and then testing. If the airtightness fails to meet requirements, each leak point must be checked individually, making it difficult to promptly identify whether the problem lies with the sealing rings at the openings. Since sealing rings are also installed on the inside of the cylinders, personnel must enter to replace them after a problem is discovered. This results in poor testing effectiveness, low efficiency, and is time-consuming and labor-intensive. Therefore, a new technical solution is urgently needed to address at least one of these technical problems. Summary of the Invention

[0003] In view of the above shortcomings, the purpose of this application is to provide an airtightness testing fixture with a simple and practical structure, which can promptly detect whether the sealing performance of the sealing ring meets the requirements and improve the testing efficiency.

[0004] To achieve the above-mentioned technical objectives and meet the above-mentioned technical requirements, the technical solution adopted in this application is as follows:

[0005] An airtightness testing fixture, characterized in that it includes an airtight cover detachably disposed on the outside of a cylinder, a baffle detachably disposed on the inside of the cylinder, an outer bracket disposed on the outside of the cylinder for fixing the airtight cover, and an inner bracket disposed on the inside of the cylinder for fixing the baffle, wherein the outer bracket and the inner bracket are connected.

[0006] As a preferred technical solution, an annular boss is provided on the outer side of the cylinder, and a through hole is provided on the cylinder to penetrate it radially. The through hole is coaxially arranged with the boss, and an outer sealing ring is embedded in the boss. An inner sealing ring matching the through hole is provided on the inner side of the cylinder.

[0007] As a preferred technical solution, the outer support includes a first support rod and a second support rod arranged symmetrically, a first intermediate rod and a second intermediate rod vertically connected between the first support rod and the second support rod, the first intermediate rod and the second intermediate rod being spaced apart, and the first support rod, the second support rod, the first intermediate rod and the second intermediate rod being detachably provided with at least one external fastener, one end of the external fastener abutting against the airtight cap.

[0008] As a preferred technical solution, the inner support includes a third support rod and a fourth support rod symmetrically arranged, and a third intermediate rod and a fourth intermediate rod vertically connected between the third support rod and the fourth support rod. The third intermediate rod and the fourth intermediate rod are spaced apart. The third intermediate rod and the fourth intermediate rod are each detachably provided with at least one internal fastener. One end of the internal fastener abuts against the baffle. The first support rod is connected to the third support rod, and the second support rod is connected to the fourth support rod.

[0009] As a preferred technical solution, a first inclined rod is obliquely connected to the lower side of the first intermediate rod and the inner side of the first support rod, a second inclined rod is obliquely connected to the lower side of the first intermediate rod and the inner side of the second support rod, a third inclined rod is obliquely connected to the upper side of the second intermediate rod and the inner side of the first support rod, and a fourth inclined rod is obliquely connected to the upper side of the second intermediate rod and the inner side of the second support rod.

[0010] As a preferred technical solution, the first, second, third, and fourth inclined rods are each detachably provided with one of the aforementioned external fasteners.

[0011] As a preferred technical solution, a first connecting rod is vertically arranged at one end of the first support rod, one end of the third support rod is connected to the first connecting rod, one end of the second support rod is vertically arranged to the second connecting rod, one end of the fourth support rod is connected to the second connecting rod, and the first connecting rod and the second connecting rod span the cylinder.

[0012] As a preferred technical solution, a third connecting rod is vertically arranged at the other end of the third support rod, the other end of the first support rod is connected to the third connecting rod, a fourth connecting rod is vertically arranged at the other end of the fourth support rod, the other end of the second support rod is connected to the fourth connecting rod, and the third connecting rod and the fourth connecting rod span the cylinder.

[0013] As a preferred technical solution, the first connecting rod, the second connecting rod, the third connecting rod, and the fourth connecting rod are respectively provided with a first slot, a second slot, a third slot, and a fourth slot. One end of the third support rod is inserted into the first slot, one end of the fourth support rod is inserted into the second slot, the other end of the first support rod is inserted into the third slot, and the other end of the second support rod is inserted into the fourth slot.

[0014] As a preferred technical solution, the airtight cover is also provided with a plurality of tightening holes that pass through it along the axial direction.

[0015] Compared with traditional technical solutions, the beneficial effects of this application are:

[0016] 1) The airtight cap presses down on the outer sealing ring, the baffle presses down on the inner sealing ring, and the outer and inner brackets fix the airtight cap and the baffle. Then, air is vented into the airtight cap to observe whether there is any leakage, thereby testing the airtightness. The structure is simple and practical, improving the testing efficiency.

[0017] 2) The airtight cover is fixed by the outer fasteners abutting against the airtight cover, and the baffle is fixed by the inner fasteners abutting against the baffle. It is easy to install and disassemble and has a good fixing effect.

[0018] 3) The first to fourth connecting rods can cross the cylinder, connecting the inner and outer supports into a whole, resulting in good overall support stability;

[0019] 4) External fasteners are provided on the first to fourth diagonal braces respectively, so that multiple pressure points can be formed on the airtight cap to firmly fix the airtight cap. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a testing fixture provided in one embodiment of this application;

[0021] Figure 2 for Figure 1 A view from another direction;

[0022] Figure 3 for Figure 1 Another view from a different direction;

[0023] Figure 4 A structural diagram of a cylinder provided for one embodiment of the application;

[0024] Figure 5 This is a structural diagram of an inner sealing ring provided in one embodiment of this application;

[0025] Figure 6 This is a structural diagram of the outer and inner supports provided in one embodiment of this application;

[0026] Figure 7 This is a structural diagram of an airtight cap provided in one embodiment of this application.

[0027] exist Figures 1-7In the middle, 1. Outer support; 101. First support rod; 102. Second support rod; 103. First intermediate rod; 104. Second intermediate rod; 105. First diagonal rod; 106. Second diagonal rod; 107. Third diagonal rod; 108. Fourth diagonal rod; 109. First connecting rod; 110. Second connecting rod; 111. First slot; 112. Second slot; 2. Inner support; 201. Third support rod; 202. Fourth support rod; 203. Third intermediate rod; 204. Fourth intermediate rod; 205. Third connecting rod; 206. Fourth connecting rod; 207. Third slot; 208. Fourth slot; 3. Airtight cap; 301. Vent hole; 302. Pressure gauge connection hole; 303. Tightening hole; 304. Raised ridge; 4. Baffle; 5. External fastener; 6. Internal fastener; 7. Cylinder; 701. Boss; 702. Through hole; 8. External sealing ring; 9. Internal sealing ring. Detailed Implementation

[0028] The present application will now be further described with reference to the accompanying drawings.

[0029] In the accompanying drawings of the embodiments of this application, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "top", "bottom", "left", "right", "front", "rear", "inner", "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] Please refer to Figures 1-7 An embodiment of this application provides an airtightness testing fixture, including an airtight cover 3 detachably disposed on the outside of a cylinder 7, a baffle 4 detachably disposed on the inside of the cylinder 7, an outer bracket 1 disposed on the outside of the cylinder 7 for fixing the airtight cover 3, and an inner bracket 2 disposed on the inside of the cylinder 7 for fixing the baffle 4. The outer bracket 1 is connected to the airtight cover 3, the inner bracket 2 is connected to the baffle 4, and the outer bracket 1 is connected to the inner bracket 2. The airtight cover 3 is provided with a vent hole 301 that passes through it along the axial direction. The structure is simple and practical, and can be used with an air source and pressure gauge to detect whether the sealing performance of the sealing ring meets the requirements in a timely manner, thereby improving the testing efficiency.

[0031] Specifically, an annular boss 701 is provided on the outer side of the cylinder 7, and a through hole 702 is provided on the cylinder 7 through it in the radial direction. The through hole 702 is coaxially arranged with the boss 701. An outer sealing ring 8 is embedded in the boss 701, and an inner sealing ring 9 matching the through hole 702 is provided on the inner side of the cylinder 7. The outer sealing ring 8 is annular, and the through hole 702 is rectangular. The airtight cap 3 presses down on the outer sealing ring 8, and the baffle 4 presses down on the inner sealing ring 9. The outer bracket 1 and the inner bracket 2 fix the airtight cap 3 and the baffle 4. The airtight cap 3 is provided with a pressure gauge connection hole 302 through it in the axial direction. Then, air is vented into the vent hole 301 of the airtight cap 3, and a pressure gauge is installed at the pressure gauge connection hole 302. The change of the pressure gauge is observed to detect the airtightness and determine whether there is any leakage. Similarly, according to the actual use, a hole can be opened on the baffle for ventilation to test the airtightness, which will not be elaborated further.

[0032] like Figures 1-7 As shown, the outer bracket 1 includes a first support rod 101 and a second support rod 102 symmetrically arranged, and a first intermediate rod 103 and a second intermediate rod 104 vertically connected between the first support rod 101 and the second support rod 102. The first intermediate rod 103 and the second intermediate rod 104 are arranged parallel to each other. The first support rod 101, the second support rod 102, the first intermediate rod 103 and the second intermediate rod 104 are each detachably provided with at least one external fastener 5. One end of the external fastener 5 abuts against the airtight cover 3. The airtight cover 3 is fixed by the external fastener 5 abutting against the airtight cover 3, which makes installation and disassembly more convenient.

[0033] like Figures 1-7 As shown, the airtight cover 3 is also provided with multiple tightening holes 303 that pass through it along the axial direction. The sealing bolts are inserted to further tighten the airtight cover 3. Multiple protruding ribs 304 are provided on the outside of the airtight cover 3, which cooperate with the outer bracket 1 to facilitate the outer bracket 1 to press the airtight cover 3, while reserving space to facilitate the installation of the outer fasteners 5.

[0034] Furthermore, a first inclined rod 105 is inclinedly connected to the lower side of the first intermediate rod 103 and the inner side of the first support rod 101; a second inclined rod 106 is inclinedly connected to the lower side of the first intermediate rod 103 and the inner side of the second support rod 102; a third inclined rod 107 is inclinedly connected to the upper side of the second intermediate rod 104 and the inner side of the first support rod 101; and a fourth inclined rod 108 is inclinedly connected to the upper side of the second intermediate rod 104 and the inner side of the second support rod 102. These are configured according to the shape of the airtight cap 3. Furthermore, each of the first inclined rod 105, second inclined rod 106, third inclined rod 107, and fourth inclined rod 108 is detachably equipped with an external fastener 5. This ensures that the external fasteners 5 on the first inclined rod 105 to the fourth inclined rod 108 can press against the edge of the airtight cap 3, ensuring tight contact between the airtight cap 3 and the outer sealing ring 8.

[0035] like Figures 1-7 As shown, the inner support 2 includes a third support rod 201 and a fourth support rod 202 symmetrically arranged, and a third intermediate rod 203 and a fourth intermediate rod 204 vertically connected between the third support rod 201 and the fourth support rod 202. The third intermediate rod 203 and the fourth intermediate rod 204 are spaced apart. The third intermediate rod 203 and the fourth intermediate rod 204 are each detachably provided with at least one inner fastener 6. One end of the inner fastener 6 abuts against the baffle 4. The first support rod 101 is connected to the third support rod 201, and the second support rod 102 is connected to the fourth support rod 202. Specifically, the number of inner fasteners 6 on the third intermediate rod 203 is one, two, or three, and the number of inner fasteners 6 on the fourth intermediate rod 204 is one, two, or three. This can form multiple pressure points on the baffle 4 to fix the baffle 4. The baffle 4 is in close contact with the inner sealing ring 9 to form a seal. The baffle 4 has an arc surface that matches the inner side of the cylinder 7.

[0036] like Figures 1-7 As shown, a first connecting rod 109 is vertically arranged at one end of the first support rod 101, one end of the third support rod 201 is connected to the first connecting rod 109, one end of the second support rod 102 is vertically arranged to the second connecting rod 110, and one end of the fourth support rod 202 is connected to the second connecting rod 110. The first connecting rod 109 and the second connecting rod 110 span the cylinder 7 and match the cylinder 7. In this way, the airtightness of the outer sealing ring 8 and the inner sealing ring 9 can be detected at the cylinder 7 stage, without the need to perform airtightness testing after the tank body is assembled.

[0037] like Figures 1-7 As shown, a third connecting rod 205 is vertically arranged at the other end of the third support rod 201, and the other end of the first support rod 101 is connected to the third connecting rod 205. A fourth connecting rod 206 is vertically arranged at the other end of the fourth support rod 202, and the other end of the second support rod 102 is connected to the fourth connecting rod 206. The third connecting rod 205 and the fourth connecting rod 206 span the cylinder 7, and the first connecting rod 109 to the fourth connecting rod 206 can span the cylinder 7, connecting the inner support 2 and the outer support 1 into a whole, with good overall support stability.

[0038] like Figures 1-7 As shown, the first connecting rod 109, the second connecting rod 110, the third connecting rod 205, and the fourth connecting rod 206 are respectively provided with a first slot 111, a second slot 112, a third slot 207, and a fourth slot 208. One end of the third support rod 201 is inserted into the first slot 111, one end of the fourth support rod 202 is inserted into the second slot 112, the other end of the first support rod 101 is inserted into the third slot 207, and the other end of the second support rod 102 is inserted into the fourth slot 208. The slots limit the support rods, and the plug-in connection method facilitates installation and disassembly.

[0039] like Figures 1-7 As shown, the outer fastener 5 and the inner fastener 6 are fastening bolts, making installation and disassembly more convenient.

[0040] Any numerical values ​​cited herein include all values ​​ranging from a lower limit to an upper limit, increasing by one unit, with at least two units between any lower and any higher value. For example, if the quantity of a component or the value of a process variable (e.g., temperature, pressure, time, etc.) is described as being from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, the purpose is to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in this specification. For values ​​less than 1, a unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1, etc. These are merely examples intended for explicit expression, and it can be assumed that all possible combinations of values ​​listed between the minimum and maximum values ​​are explicitly described in this specification in a similar manner.

[0041] Unless otherwise stated, all ranges include the endpoints and all numbers between them. The terms "approximately" or "about" used with ranges apply to both endpoints of the range. Thus, "approximately 20 to 30" is intended to cover "approximately 20 to approximately 30," including at least the specified endpoints.

[0042] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute included by “may” is optional.

[0043] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of the word "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.

[0044] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the inventors have not considered that subject matter as part of the disclosed subject matter.

Claims

1. A leak detection tool, characterized by, It includes an airtight cover detachably disposed on the outside of the cylinder, a baffle detachably disposed on the inside of the cylinder, an outer bracket disposed on the outside of the cylinder for fixing the airtight cover, and an inner bracket disposed on the inside of the cylinder for fixing the baffle, wherein the outer bracket and the inner bracket are connected.

2. The air tightness inspection tool according to claim 1, wherein The outer side of the cylinder is provided with an annular boss, and the cylinder is provided with a through hole that passes through it radially. The through hole is coaxially arranged with the boss. The boss is fitted with an outer sealing ring, and the inner side of the cylinder is provided with an inner sealing ring that matches the through hole.

3. The air tightness inspection tool according to claim 1, wherein The outer support includes a first support rod and a second support rod arranged symmetrically, and a first intermediate rod and a second intermediate rod vertically connected between the first support rod and the second support rod. The first intermediate rod and the second intermediate rod are spaced apart. The first support rod, the second support rod, the first intermediate rod and the second intermediate rod are each detachably provided with at least one external fastener. One end of the external fastener abuts against the airtight cap.

4. The air tightness inspection tool according to claim 3, wherein The inner support includes a symmetrically arranged third support rod and a fourth support rod, and a third intermediate rod and a fourth intermediate rod vertically connected between the third support rod and the fourth support rod. The third intermediate rod and the fourth intermediate rod are spaced apart. Each of the third intermediate rod and the fourth intermediate rod is detachably provided with at least one internal fastener. One end of the internal fastener abuts against the baffle. The first support rod is connected to the third support rod, and the second support rod is connected to the fourth support rod.

5. The air tightness inspection tool according to claim 3, wherein A first inclined rod is obliquely connected to the lower side of the first intermediate rod and the inner side of the first support rod; a second inclined rod is obliquely connected to the lower side of the first intermediate rod and the inner side of the second support rod; a third inclined rod is obliquely connected to the upper side of the second intermediate rod and the inner side of the first support rod; and a fourth inclined rod is obliquely connected to the upper side of the second intermediate rod and the inner side of the second support rod.

6. The air tightness inspection tool according to claim 5, wherein The first, second, third, and fourth diagonal braces are each detachably equipped with one of the aforementioned external fasteners.

7. The air tightness inspection tool of claim 4, wherein, The first support rod has a first connecting rod vertically installed at one end, the third support rod has one end connected to the first connecting rod, the second support rod has a second connecting rod vertically installed at one end, the fourth support rod has one end connected to the second connecting rod, and the first and second connecting rods span the cylinder.

8. The air tightness inspection tool according to claim 7, wherein The third support rod has a third connecting rod vertically arranged at its other end. The other end of the first support rod is connected to the third connecting rod. The fourth support rod has a fourth connecting rod vertically arranged at its other end. The other end of the second support rod is connected to the fourth connecting rod. The third connecting rod and the fourth connecting rod span the cylinder.

9. The air tightness inspection tool according to claim 8, wherein The first connecting rod, the second connecting rod, the third connecting rod, and the fourth connecting rod are respectively provided with a first slot, a second slot, a third slot, and a fourth slot. One end of the third support rod is inserted into the first slot, one end of the fourth support rod is inserted into the second slot, the other end of the first support rod is inserted into the third slot, and the other end of the second support rod is inserted into the fourth slot.

10. The air tightness inspection tool of claim 1, wherein, The airtight cover is also provided with multiple tightening holes that pass through it along the axial direction.

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