CN220583693U - Air tightness detection equipment - Google Patents
Air tightness detection equipment Download PDFInfo
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- CN220583693U CN220583693U CN202321432601.0U CN202321432601U CN220583693U CN 220583693 U CN220583693 U CN 220583693U CN 202321432601 U CN202321432601 U CN 202321432601U CN 220583693 U CN220583693 U CN 220583693U
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims description 23
- 230000008093 supporting effect Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to the field of air tightness detection and discloses air tightness detection equipment, which comprises a bottom plate and a plugging cover plate, wherein a plurality of positioning blocks and a plurality of fixing brackets are arranged on the bottom plate; the fixed bolster is kept away from bottom plate one end and is equipped with main fixing bolt, is equipped with first fixed slot and second fixed slot on first apron and the second apron respectively, and first fixed slot and second fixed slot are used for being connected with main fixing bolt. During testing, the detection part is arranged on the bottom plate by the positioning block, holes in the part are plugged by the plugging cover plate, the plugging cover plate is fixed by the fixing bolts, and air is filled into the part through the air inlet holes to detect the air tightness of the part; the utility model has the beneficial effects of simple structure and convenient operation.
Description
Technical Field
The utility model relates to the field of air tightness detection, in particular to air tightness detection equipment.
Background
For some shell parts with hollow structures, such as a gearbox shell, high tightness requirements exist for the parts, so that after the shell parts are cast and molded, air tightness detection needs to be carried out on the shell parts, and whether the air tightness of joints of the shell parts and the shell body after die casting meets the requirements or not is ensured.
When the air tightness detection device in the prior art detects the air tightness of the shell part, the hole on the shell part is plugged, pressurized air is introduced into the inner cavity of the shell part, the pressure is maintained for a certain time when the pressurization reaches the design requirement, and whether the shell part has a dew point or not is checked in the process to judge the air tightness of the shell part. The existing detection device is used for plugging holes through hydraulic rods, the connection and fixing structure of the hydraulic rods are complex in design, a plurality of holes are formed in a shell part, a large number of hydraulic rods are needed to be used for fixing, the manufacturing cost is high, the production cost of enterprises is increased, the holes are plugged through a whole plugging plate on one side face of the shell part, the holes in the middle of the shell part are unfavorable for observation, observation blind areas exist in the overlong detection process, and quality risks exist in cast parts.
To this, this scheme provides a gas tightness check out test set, simplifies the structure that the gas tightness detected, reduces equipment manufacturing cost, improves the degree of accuracy that detects.
Disclosure of Invention
The present utility model is intended to provide an air tightness detection apparatus to simplify the structure of air tightness detection.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the air tightness detection device comprises a bottom plate and a plugging cover plate which is arranged on the bottom plate in a separating way, wherein the plugging cover plate comprises a first cover plate and two second cover plates which are respectively arranged on two sides of the first cover plate, each second cover plate is provided with a plugging side and a fixing side, the plugging sides of the two second cover plates are arranged in opposite directions, and the plane of the second cover plate is perpendicular to the plane of the first cover plate;
the first cover plate is provided with a first pushing mechanism for pushing the first cover plate to move back and forth and a gas transmission mechanism for inflating the inside of the part to be tested through the first cover plate; each second cover plate is provided with a second pushing mechanism for pushing the two second cover plates to move relatively; the second pushing mechanism is connected with the fixed side of the second cover plate; the first pushing mechanism and the second pushing mechanism are connected with the bottom plate through a fixed bracket;
a group of positioning components are respectively arranged between the first cover plate and the second cover plate, the positioning components are matched with the shape of the bottom plate of the part to be tested, and the positioning components are used for fixing the part to be tested; the first cover plate and the two second cover plates and the positioning assembly form a detection space for placing the part to be detected.
The principle and the advantages of the scheme are as follows: when the air tightness detection is carried out, after the part to be detected is placed on the bottom plate through the positioning assembly, the first cover plate and the second cover plate are respectively corresponding to the positions of the holes in the part, the first cover plate and the second cover plate are tightly attached to the part through the first pushing mechanism and the second pushing mechanism on the fixing support, air is filled into the part through the air inlet hole in the first cover plate, after pressure is stabilized and maintained, soapy water is sprayed on the surface of the part, and whether leakage defects exist in the part is checked and positioned. According to the trompil condition of the part that awaits measuring in this scheme, set up corresponding shutoff apron to realize closely laminating between passing through bolt and the part with shutoff apron, when guaranteeing shutoff apron shutoff effect, simplify the structure of check out test set when the shutoff, independently set up the shutoff apron of each hole simultaneously, reduce the shielding of check out test set to the casing part surface, reduce the detection blind area.
Preferably, as an improvement, the fixing support is located at one end of the bottom plate, and the supporting plates are axially distributed at two sides of the fixing support along the center of the plugging cover plate. The length of the supporting plate along the extending direction of the fixed support is 20% -25% of the length of the fixed support. Set up the backup pad between fixed bolster and bottom plate, improve the stability of being connected between fixed bolster and the backup pad to the backup pad is along shutoff apron central axial distribution in fixed bolster both sides, makes when detecting, and the backup pad can be in the inside air that rushes into of part and the effort that causes the shutoff apron when steady voltage pressurize forms good supporting effect, and the support frame support is insufficient when avoiding the shutoff apron to receive pressure impact takes place fracture or position offset, improves check out test set's reliability and durability.
Preferably, as an improvement, the fixing support comprises a first fixing support and a second fixing support, the first fixing support is used for being connected with the first cover plate, the second fixing support is connected with the second cover plate, the second fixing support comprises 2 supporting rods, and the supporting rods are distributed along the center of the second cover plate symmetrically.
Preferably, as an improvement, the air inlet hole is located at the center of the first cover plate, the first fixing groove is located at one side of the air inlet hole, which is close to the bottom plate, and the distance between the first fixing groove and the air inlet hole is 50% -60% of the radius of the first cover plate. The second fixing groove is located at the center of the second cover plate. The air inlet hole is arranged at the center of the first cover plate, so that the consistency of the pressure applied to each area of the part can be ensured when the air is filled into the part, the consistency of the pressure applied to the periphery of the first cover plate is ensured, and the influence of uneven pressure on the test result is avoided; the first fixed slot is located the inlet port and is close to bottom plate one side to the distance between first fixed slot and the inlet port is 50% -60% of first apron radius, and the second fixed slot is located the central point of second apron, guarantees the homogeneity that fixing bolt applys pressure for shutoff apron surface, avoids shutoff apron and part between existence gap, influences the test result.
Preferably, as an improvement, the distance between the first fixing support and the second fixing support and the positioning block is 80-120mm, so that the detection efficiency of the detection equipment is influenced by avoiding overlarge distance between the fixing support and the part while ensuring that the detection part can be smoothly placed on the bottom plate and the fixing block and increasing the consumed time of the fixing bolt when the fixing is performed.
Preferably, as an improvement, the second cover plate is further provided with a plurality of auxiliary fixing grooves, the auxiliary fixing grooves are uniformly distributed along the circumferential direction of the second cover plate, and auxiliary pushing mechanisms are arranged at positions, corresponding to the auxiliary fixing grooves, of the second fixing support. And auxiliary fixing bolts are arranged between the periphery of the second cover plate and the second fixing support, so that the firmness of the periphery of the second cover plate and the part holes is ensured.
Preferably, as an improvement, the device further comprises at least 1 movable support, wherein the movable support and the first fixed support are uniformly distributed along the radial direction of the first cover plate, one end of the movable support is connected with the first cover plate, and the other end of the movable support is in sliding connection with the bottom plate through a roller. The movable support is arranged on the side face of the first fixed support, so that the uniformity of pressure during fixing on the first cover plate is improved, and meanwhile, the movable support is connected with the bottom plate, so that the first cover plate can be conveniently moved during plugging and disassembling of the part holes.
Preferably, as an improvement, the device further comprises a plurality of auxiliary cover plates, wherein the auxiliary cover plates are detachably connected with the tested part. The first cover plate, the second cover plate and the auxiliary cover plate are matched with the shape of the plugged holes, and sealing rings are arranged on the contact surfaces of the first cover plate, the second cover plate, the auxiliary cover plate and the plugged holes. Can dismantle with the part that is surveyed through setting up a plurality of auxiliary cover boards and be connected, when guaranteeing that each hole in the part that is surveyed all can carry out the shutoff, avoid setting up too much support in test equipment, increase the complexity of equipment structure to can dismantle the connection and can make auxiliary cover board can be more nimble carry out the shutoff to the hole of each angle on the part that is surveyed.
Drawings
Fig. 1 is a schematic structural diagram of a detection apparatus according to a first embodiment of the present utility model.
Fig. 2 is a schematic structural view of a support plate according to a first embodiment of the present utility model.
Fig. 3 is a schematic structural diagram of a first cover plate according to a first embodiment of the utility model.
Fig. 4 is a schematic structural diagram of a detection apparatus according to a second embodiment of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: the bottom plate 1, the positioning block 101, the plugging cover plate 2, the first cover plate 201, the second cover plate 202, the first fixed support 3, the second fixed support 4, the support rod 401, the connecting rod 402, the support plate 5, the first main fixing bolt 6, the first fixing groove 601, the second main fixing bolt 7, the air inlet hole 8, the air inlet pipe 801, the movable support 9, the auxiliary cover plate 10, the sealing ring 11 and the auxiliary fixing bolt 12.
Example 1
As shown in fig. 1, the air tightness detection device of the embodiment comprises a bottom plate 1 and a plugging cover plate 2, wherein a positioning component and a plurality of fixing brackets are arranged on the bottom plate 1, the positioning component comprises a plurality of positioning blocks 101, the positioning blocks 101 are distributed on the bottom plate 1 along the placement position of a part to be detected, and the structure of each positioning block 101 is matched with the edge shape of the part to be detected; one end of the fixing bracket is connected with the bottom plate 1, the other end of the fixing bracket is connected with the plugging cover plate 2, the fixing bracket comprises a first fixing bracket 3 and a second fixing bracket 4, in the embodiment, the fixing bracket comprises 1 first fixing bracket 3 and 2 second fixing brackets 4, the second fixing brackets 4 are distributed on two sides of the first fixing bracket 3, the distance between the first fixing bracket 3 and the second fixing bracket 4 and the positioning block 101 is 80-120mm, namely, the distance between the first fixing bracket 3, the second fixing bracket 4 and the part is 80-120mm, and in the embodiment, the preferred distance between the first fixing bracket 3, the second fixing bracket 4 and the part is 100mm; the first fixing support 3 and the second fixing support 4 are positioned at one end of the bottom plate 1, a supporting plate 5 is arranged on the fixing support along the central axial direction of the plugging cover plate 2, the supporting plate 5 is in a right triangle shape, and two right-angle sides are respectively connected with the bottom plate 1 and the fixing support; as shown in fig. 2, the length of the side of the support plate 5 contacting the fixing bracket is 20% -30% of the length of the fixing bracket, that is, the length a of the side of the support plate 5 contacting the bottom plate 1 is 50-80mm, preferably, the length a of the side of the support plate 5 contacting the fixing bracket is 25% of the length of the fixing bracket, and the length of the side of the support plate 5 contacting the bottom plate 1 is 70mm in this embodiment.
The fixed support is provided with a first pushing mechanism and a second pushing mechanism at one end far away from the bottom plate 1, the first pushing mechanism and the second pushing mechanism are main fixed bolts in the embodiment, one end, close to a part, of each main fixed bolt is a plane, and the other end of each main fixed bolt is provided with a rotating handle; a threaded hole is formed in one end, far away from the bottom plate, of the specific first fixing support 3, a first main fixing bolt 6 is arranged in the threaded hole in a penetrating manner, the second fixing support 4 comprises two support rods 401, the support rods are connected through a connecting rod 402, a threaded hole is formed in the connecting rod 402, and a second main fixing bolt 7 is arranged in the threaded hole in a penetrating manner; the main fixing bolt is close to one side of the part and is connected with the plugging cover plate 2, the plugging cover plate 2 which is connected with the first main fixing bolt 6 is a first cover plate 201, a first fixing groove is formed in the corresponding position of the first cover plate 201 and the first main fixing bolt 6, the plugging cover plate 2 which is connected with the second main fixing bolt 7 is a second cover plate 202, a second fixing groove is formed in the corresponding position of the second cover plate 202 and the second main fixing bolt 7, and the diameters of the first fixing groove and the second fixing groove are matched with those of the fixing bolts.
An air inlet hole 8 is formed in the center of the first cover plate 201, the air inlet hole 8 is connected with an air inlet pipe 801, and the first fixing groove is positioned on one side, close to the bottom plate 1, of the air inlet hole 8; as shown in fig. 3, the distance b between the first fixing groove and the air intake hole 8 is 40% -60% of the radius of the first cover plate 201, and preferably, in this embodiment, the distance b between the first fixing groove and the air intake hole 8 is 50% of the radius of the first cover plate 201; the second fixing groove is located at the center of the second cover 202, and the first fixing groove and the second fixing groove are used for fixing the first main fixing bolt 6 and the second main fixing bolt 7 respectively.
At least 1 movable support 9 is further arranged on the side surface of the first fixed support 3, preferably in the embodiment, 2 movable supports 9 are arranged on the side surface of the first fixed support 3, the movable supports 9 are located on two sides of the first fixed support 3 and are uniformly distributed on the radial direction of the first cover plate 201, one end of each movable support 9 is connected with the first cover plate 201, preferably in the embodiment, the movable supports 9 are fixedly connected with the first cover plate 201 through bolts, and in other embodiments, the movable supports 9 are connected with the first cover plate 201 through other modes; the other end of the movable bracket 9 is connected with the bottom plate 1 in a sliding way through a roller.
The detection equipment further comprises a plurality of auxiliary cover plates 102, the auxiliary cover plates 102 are detachably connected with the parts, the auxiliary cover plates 102, the first cover plates 201 and the second cover plates 202 are matched with the shape of the plugged part holes, and sealing rings 11 are arranged at the contact positions of the plugging cover plates and the edges of the part holes.
The specific implementation process is as follows:
when detecting, the part is placed on the bottom plate 1, the edge of the part is aligned with the positioning block 101, the first cover plate 201 and the second cover plate 202 are aligned with corresponding holes on the part respectively, the first main fixing bolt 6 and the second main fixing bolt 7 are rotated to tightly cover the first cover plate 201 and the second cover plate 202 on the holes of the part, the rest holes on the part are plugged and covered through the auxiliary cover plate 102, air is filled into the part through the air inlet holes 8 for pressurizing, soapy water is sprayed on the surface of the part after pressure stabilization and pressure maintaining, whether bubbles exist on the surface of the part is observed, and whether leakage defects exist on the part is judged.
In the scheme, the first cover plate 201 and the second cover plate 202 are connected through the first fixing support 3 and the second fixing support 4, the auxiliary cover plate 102 is connected with the parts in a detachable connection mode, the number of the fixing supports in the equipment is reduced, the equipment structure is simplified, the plugging cover plates of all holes are independently arranged, and the connection compactness of each hole and the plugging cover plate is ensured; simultaneously be convenient for replace first apron 201 and second apron 202 according to the trompil size of different parts to auxiliary cover plate 102 also can more nimble setting, improve the suitability of equipment between different parts, only have the shutoff apron to shutoff each hole simultaneously at the surface of part, reduce the cover of equipment structure to part surface and shelter from, be convenient for observe the part surface at the testing process, reduce the blind area of detecting the time, improve the precision of equipment testing result.
The backup pad 5 sets up to right triangle to the length of backup pad 5 and fixed bolster contact side is 25% of fixed bolster length, and the length of backup pad 5 and bottom plate 1 contact side is 70mm, makes backup pad 5 can all carry out good support to the fixed bolster of co-altitude not, guarantees the stability of fixed bolster.
When the plugging cover plate 2 is detected, the position of the plugging cover plate 2 is fixed through the fixing bolts, the connection tightness of the plugging cover plate 2 and the hole of the part is ensured, meanwhile, the fixing bolts can fix the threaded holes on the support to limit the positions of the fixing bolts, the plugging cover plate 2 is prevented from being displaced due to the fact that the parts are pressed by pressure in the detecting process, meanwhile, the limiting structure is prevented from being independently arranged on the fixing support, and the equipment structure is further simplified; and fix the shutoff apron on the hole of part through fixing bolt, the degree of difficulty when can reducing shutoff apron installation and dismantlement by a wide margin, save the part and detect the time of installing around and dismantling, improve the detection efficiency of part.
The side of the first fixed support 3 is provided with 2 movable supports 9, so that the first cover plate 201 is guaranteed to be connected with a hole of a part when being detected under the combined action of the first main fixed bolt 6 and the movable supports 9, and the first cover plate 201 is connected with the bottom plate in a sliding manner through the two movable supports 9, so that the first cover plate 201 can be more conveniently and accurately finished when being installed and detached from the part, and the disassembly difficulty caused by overlarge volume of the first cover plate 201 is reduced. First fixed slot and second fixed slot have been seted up respectively on first apron 2012 and second apron 2022, be convenient for shutoff apron 2 is fixed through first main fixing bolt 6 and second main fixing bolt 7 to the position that carries out, main fixing bolt's one end can be fixed with the fixed slot on shutoff apron 2 surface, avoid fixing bolt to appear the displacement in the testing process, the seal when reducing shutoff apron 2 shutoff, and the distance between first fixed slot and the inlet port 8 is 50% of first apron 2012 radius, avoid first main fixing bolt 6 to influence the interval too near between the inlet port 8, when increasing the installation degree of difficulty, guarantee the stability that first main fixing bolt 6 is fixed to first apron 2012.
Compared with the existing air tightness detection equipment, the structure of the detection equipment is simplified by respectively arranging and connecting each plugging cover plate in the scheme, the manufacturing cost of the equipment is reduced, the mounting difficulty of parts during detection is reduced, and the detection efficiency of the air tightness of the parts is improved.
Example two
As shown in fig. 4, the second embodiment is different from the first embodiment in that a plurality of auxiliary fixing grooves and auxiliary pushing mechanisms are arranged on the second fixing support in the present embodiment, preferably, the auxiliary pushing mechanisms are auxiliary fixing bolts 12 in the present embodiment, the auxiliary fixing bolts 12 are threaded through threaded holes and arranged at one end of the second fixing support 4 far away from the bottom plate 1, preferably, 4 auxiliary fixing bolts are arranged on one second fixing support 4 in the present embodiment, the auxiliary fixing bolts 12 are uniformly distributed along the circumferential direction of the second cover plate 202, and the auxiliary fixing grooves are formed at the positions of the second cover plate 202 and the auxiliary fixing bolts; the auxiliary fixing bolt 12 is located at one end of the second cover plate 202 and is located in the auxiliary fixing groove. When the second cover plate 202 is connected with the part, the second cover plate 202 is fixed on the part through the second main fixing bolt 7 and the auxiliary fixing bolt together, so that the connection tightness between the periphery of the second cover plate 202 and the holes of the part is ensured, and the influence on the air tightness test result caused by the pressure drop in the part due to the fact that the periphery of the second cover plate 202 is not tightly blocked is avoided; the auxiliary fixing bolts 12 are arranged on the second fixing support 4 in a penetrating mode, the auxiliary fixing bolts 12 are prevented from being arranged in the device independently, and the utilization rate of the device structure is improved.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (10)
1. An air tightness detection device, characterized in that: the plugging cover plate comprises a first cover plate and two second cover plates respectively arranged at two sides of the first cover plate, wherein the two second cover plates are provided with plugging sides and fixing sides, the plugging sides of the two second cover plates are oppositely arranged, and the plane of the second cover plates is perpendicular to the plane of the first cover plates;
the first cover plate is provided with a first pushing mechanism for pushing the first cover plate to move back and forth and a gas transmission mechanism for inflating the inside of the part to be tested through the first cover plate; each second cover plate is provided with a second pushing mechanism for pushing the two second cover plates to move relatively; the second pushing mechanism is connected with the fixed side of the second cover plate; the first pushing mechanism and the second pushing mechanism are connected with the bottom plate through a fixed bracket;
a group of positioning components are respectively arranged between the first cover plate and the second cover plate, the positioning components are matched with the shape of the bottom plate of the part to be tested, and the positioning components are used for fixing the part to be tested; the first cover plate and the two second cover plates and the positioning assembly form a detection space for placing the part to be detected.
2. An air tightness testing device according to claim 1, wherein: the fixed support is located bottom plate one end is equipped with the backup pad, the backup pad is followed shutoff apron central axial distributes in the fixed support both sides.
3. An air tightness detection device according to claim 2, characterized in that: the length of the supporting plate along the extending direction of the fixed support is 20% -25% of the length of the fixed support.
4. An air tightness detection device according to claim 2, characterized in that: the fixing support comprises a first fixing support and a second fixing support, the first fixing support is used for being connected with the first cover plate, the second fixing support is connected with the second cover plate, the second fixing support comprises two supporting rods, and the supporting rods are symmetrically distributed along the center of the second cover plate; the positioning assembly comprises a plurality of positioning blocks.
5. The air tightness detection device according to claim 4, wherein: the gas transmission mechanism is positioned at the center of the first cover plate, a threaded hole is formed in one end, far away from the bottom plate, of the first fixed support, and a first main fixing bolt is arranged in the threaded hole in a penetrating manner; the second fixing support comprises two support rods, the support rods are connected through a connecting rod, a threaded hole is formed in the connecting rod, and a second main fixing bolt is arranged in the threaded hole in a penetrating mode; a first fixing groove is formed in the first cover plate at a position corresponding to the first main fixing bolt, a second fixing groove is formed in the second cover plate at a position corresponding to the second main fixing bolt, and an air inlet hole is formed in the center of the first cover plate; the first fixing groove is positioned at one side of the air inlet close to the bottom plate, and the distance between the first fixing groove and the air inlet is 40% -60% of the radius of the first cover plate; the second fixing groove is located at the center of the second cover plate.
6. The air tightness detection device according to claim 4, wherein: the distance between the first fixed support and the positioning block and the distance between the second fixed support and the positioning block are 80-120mm.
7. The air tightness detection device according to claim 4, wherein: the second cover plate is further provided with a plurality of auxiliary fixing grooves, the auxiliary fixing grooves are uniformly distributed along the circumferential direction of the second cover plate, and auxiliary pushing mechanisms are arranged at positions, corresponding to the auxiliary fixing grooves, of the second fixing support.
8. The air tightness detection device according to claim 4, wherein: the movable support and the fixed support are uniformly distributed along the radial direction of the first cover plate, one end of the movable support is connected with the first cover plate, and the other end of the movable support is connected with the bottom plate in a sliding manner through a roller.
9. An air tightness testing device according to claim 1, wherein: the device also comprises a plurality of auxiliary cover plates, wherein the auxiliary cover plates are detachably connected with the measured parts.
10. The air tightness detection device according to claim 9, wherein: the first cover plate, the second cover plate and the auxiliary cover plate are matched with the shape of the plugged holes, and sealing rings are arranged on the contact surfaces of the first cover plate, the second cover plate, the auxiliary cover plate and the plugged holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321432601.0U CN220583693U (en) | 2023-06-06 | 2023-06-06 | Air tightness detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321432601.0U CN220583693U (en) | 2023-06-06 | 2023-06-06 | Air tightness detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220583693U true CN220583693U (en) | 2024-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321432601.0U Active CN220583693U (en) | 2023-06-06 | 2023-06-06 | Air tightness detection equipment |
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| Country | Link |
|---|---|
| CN (1) | CN220583693U (en) |
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2023
- 2023-06-06 CN CN202321432601.0U patent/CN220583693U/en active Active
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