CN220932275U - Quick locking type hole type airtight detection device - Google Patents
Quick locking type hole type airtight detection device Download PDFInfo
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- CN220932275U CN220932275U CN202322873970.XU CN202322873970U CN220932275U CN 220932275 U CN220932275 U CN 220932275U CN 202322873970 U CN202322873970 U CN 202322873970U CN 220932275 U CN220932275 U CN 220932275U
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- cavity
- piston assembly
- sealing
- expansion head
- quick locking
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- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 56
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
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Abstract
The utility model discloses a quick locking type hole type airtight detection device which comprises a shell, a piston assembly, a push rod, a pull rod, an expansion head and an inflation nozzle, wherein a cavity is formed in the shell, and the piston assembly is arranged in the cavity; one end of the piston assembly is connected with a push rod extending out of the first end of the cavity, the other end of the piston assembly is connected with a pull rod extending out of the second section of the cavity, and an expanding part is arranged at one end of the pull rod extending out of the cavity; the shell is further provided with an expansion head positioned at the second end of the cavity, the expansion head allows the expansion part to be embedded into the shell, the charging connector is arranged at one end of the cavity close to the expansion head and is communicated with the cavity, the shell is at least divided into two sections in the axial direction, and the two sections are detachably and hermetically connected, so that the air tightness of the device is ensured, the original complex shell is divided into a plurality of parts with a single structure for processing, and the technical effect of reducing the manufacturing cost of the quick locking type hole type airtight detection device is realized.
Description
Technical Field
The utility model relates to a quick locking and sealing technology, in particular to a quick locking type hole type sealing device.
Background
In the air tightness detection of the hole, the sealing of the hole opening is an indispensable link. Under the existing technical conditions, the cylindrical shell of the quick locking type hole type sealing device is integrally processed, the manufacturing cost is high, and the risk of air leakage exists after long-term repeated use, so that the air tightness detection of the detected hole is inaccurate.
Aiming at the current situation, a quick locking type hole type airtight detection device is designed to solve the problems of high cost and short service life of the existing quick locking type hole type sealing device.
Disclosure of utility model
The utility model aims to provide a quick locking type hole type airtight detection device, which solves the problems in the prior art, and the shell is arranged in a detachable mode, so that the manufacturing cost of the quick locking type hole type airtight detection device is reduced.
In order to achieve the above object, the present utility model provides the following solutions:
The utility model provides a quick locking type hole type airtight detection device, which comprises:
A housing having a cavity;
the piston assembly is arranged in the cavity, one end of the piston assembly is connected with a push rod, and the push rod extends out of the first end of the cavity;
the other end of the piston assembly is connected with a pull rod, the pull rod extends out of the second end of the cavity, and an expanding part is arranged at one end of the pull rod extending out of the cavity;
The shell is also provided with an expansion head positioned at the second end of the cavity, and the expansion head allows the expansion part to be embedded into the shell so as to realize expansion sealing of the expansion head to the hole;
An inflation nozzle communicated with one end of the cavity close to the expansion head; wherein,
At least one of the piston assembly or the pushrod is in sealing engagement with an inner wall of the cavity; the shell is at least divided into two sections in the axial direction, and any two adjacent sections are detachably connected in a sealing way; the pull rod passes through the expansion head and is in clearance fit with the expansion head.
Preferably, the charging connector is detachably connected with the cavity.
Preferably, the charging connector is in threaded connection with the cavity, and a first sealing ring is further arranged at the connection position of the charging connector and the cavity.
Preferably, the expansion device further comprises a sealing fastener connected to the expansion head and used for being buckled outside the hole, and the sealing fastener can retract towards the direction of the pull rod.
Preferably, an elastic member for providing a restoring force to the piston assembly is further provided in the cavity.
Preferably, a second sealing ring is sleeved outside the piston assembly, and a groove is formed in the piston assembly in a matched mode with the second sealing ring.
Preferably, the second sealing ring is a QY-type sealing ring.
Preferably, any two adjacent sections of the shell are in threaded connection, and a third sealing ring is further arranged at the connection position of any two adjacent sections.
Preferably, the shell is divided into a first connecting section and a second connecting section, the piston assembly comprises a piston body and an extending section which forms a step structure with the piston body, an inner cavity of the first connecting section is matched with the outer diameter of the piston body, and a connecting position of the second connecting section and the first connecting section forms a guiding section which is in transition fit with the extending section.
Preferably, the part of the inner wall of the cavity, which is in sealing fit with the piston assembly and/or the push rod, is also prefabricated with a self-sealing lubricating coating.
Compared with the prior art, the utility model has the following technical effects:
According to the quick locking type hole type airtight detection device provided by the utility model, the shell can be divided into at least two sections in the axial direction, any two adjacent sections are detachably connected in a sealing manner, the integral shell which is originally manufactured in a complex manner is divided into a plurality of parts to be respectively manufactured in a processing manner, and then the integral shell is assembled.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a quick locking type hole type airtight detecting device;
FIG. 2 is an enlarged view of a portion of the position A of FIG. 1;
Wherein, 1, push rod; 2. a housing; 3. a second seal ring; 4. a piston assembly; 5. an elastic member; 6. a pull rod; 7. an expansion head; 8. a sealing fastener; 9. an expanding section; 10 a first sealing ring; 11. an air charging nozzle; 12. a third seal ring; 13. a first connection section; 14. an extension section; 15. a guide section; 16. and a second connection section.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide a quick locking type hole type airtight detection device, which solves the problems of the prior art, so that the problem of high manufacturing cost of the quick locking type hole type airtight detection device in the prior art is solved.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1, the quick locking type hole type airtight detection device provided by the embodiment of the utility model comprises a shell 2, a piston assembly 4, a push rod 1, a pull rod 6, an expansion head 7 and an inflation nozzle 11, wherein a cavity is formed in the shell 2, and the piston assembly 4 is arranged in the cavity; one end of the piston assembly 4 is connected with a push rod 1 extending out of the first end of the cavity, the other end of the piston assembly 4 is connected with a pull rod 6 extending out of the second section of the cavity, and an expanding part 9 is arranged at one end of the pull rod 6 extending out of the cavity; the shell 2 is further provided with an expansion head 7 positioned at the second end of the cavity, the expansion head 7 allows the expansion part 9 to be embedded into the shell, an inflation nozzle 11 is arranged at one end of the cavity close to the expansion head 7 and communicated with the cavity, at least one of the piston assembly 4 or the push rod 1 is in sealing fit with the inner wall of the cavity, when the pull rod 6 is in clearance fit with the expansion head 7, the expansion head 7 stretches into the hole, the position of the push rod 1 is adjusted, the expansion part 9 of the pull rod 6 stretching out of one end of the cavity is driven to enter the expansion head 7, the expansion head 7 is expanded and tightly attached to the inner wall of the hole, the device is sealed and locked on the hole, finally an operator inflates the cavity through the inflation nozzle 11 by an external pipeline, and gas enters the hole position through a gap between the pull rod 6 and the expansion head 7, so that the air tightness of the hole is detected.
Further, the casing 2 is divided into at least two sections in the axial direction, and the two sections adjacent to each other are detachably connected, so that the air tightness of the device is guaranteed, the original complex casing 2 is divided into a plurality of parts with a single structure for processing, and the technical effect of reducing the manufacturing cost of the quick locking type hole type air tightness detection device is achieved.
As a further optimization scheme, any two adjacent sections of shells 2 are connected through a threaded connection mode, so that the adjacent shells 2 are detachable, and meanwhile, convenience in connection of the shells 2 is guaranteed.
As a preferred mode, the charging connector 11 and the cavity can be also arranged in a detachable connection mode, so that the production cost of the quick locking type hole type airtight detection device is further reduced. Meanwhile, the charging connector 11 is in threaded connection with the cavity, so that convenience in connection of the charging connector 11 and the cavity is guaranteed.
Of course, it will be understood by those skilled in the art that the two adjacent sections of the housing 2, the charging connector 11 and the cavity can be connected in a sealing manner by plugging, clamping, bolting or the like.
Furthermore, the third sealing ring 12 is further arranged at the connecting position of any two adjacent sections of the shells 2, the first sealing ring 10 is further arranged at the connecting position of the charging connector 11 and the cavity, the air tightness of the device is further improved, and the accuracy of the air tightness detection experimental result is ensured.
Referring to fig. 1, a sealing fastener 8 may be further disposed at the expansion head 7, and an opening of the sealing fastener 8 faces a direction away from the expansion head 7, so that, in use, an opening end of the sealing fastener 8 is fastened on the hole, so that tightness between the quick locking type hole type airtight detection device and the hole is further improved, and a technical effect of improving accuracy of the airtight detection structure is achieved. In addition, the sealing fastener 8 is sleeved outside the expansion head 7, and the sealing fastener 8 can shrink towards the pull rod 6 to ensure that the expansion head 7 can be plugged into the hole, so that the expansion head 7 and the sealing fastener 8 can jointly participate in sealing the hole.
The shape of the sealing fastener 8 may be bowl-shaped, cone-shaped, etc., and it is understood that the fastening member that can ensure sealing connection with the hole can be used as the sealing fastener 8 as long as the opening end can be fully covered with the hole.
With continued reference to fig. 1, a spring for providing a restoring force for the piston assembly 4 is further disposed in the cavity, specifically, the spring is disposed between the piston assembly 4 and the expansion head 7, when in use, an operator pushes the push rod 1 forward (specifically, pushes to the right in fig. 1) first, the push rod 1 pushes the spring to shrink through the piston assembly 4, and pushes the expansion part 9 of the push rod 1 forward through the piston assembly 4, so that the expansion part 9 extends out of the expansion head 7 forward, the expansion head 7 shrinks to a size smaller than the size of the hole, then the operator stretches the contracted expansion head 7 into the hole, the operator releases the push rod 1, the spring begins to restore, pushes the piston assembly 4 to move backward under the action of elastic force, and pulls the expansion part 9 back into the expansion head 7, and the expansion head 7 is expanded and compressed on the inner wall of the hole, so that the hole type sealing device can be automatically locked to the hole opening.
Preferably, the spring for providing the return force to the piston assembly 4 is replaced by any known elastic member 5 capable of accumulating energy and automatically returning; the setting position of the device can be freely adjusted according to actual requirements; it is clear that it is within the scope of the application as long as a restoring force can be provided to the piston assembly 4.
Further, as shown in fig. 1, the second sealing ring 3 is sleeved outside the piston assembly 4, and the second sealing ring 3 is a QY sealing ring, so that the space at the left end and the right end of the piston assembly 4 can be effectively isolated, and gas is prevented from reaching the other end from one end of the piston assembly 4. The piston assembly 4 is provided with a groove matched with the second sealing ring 3 so as to avoid translocation of the second sealing ring 3 in the process of reciprocating movement of the piston assembly 4.
Preferably, the number of the second sealing ring 3 and the grooves is two, and of course, the number of the second sealing ring 3 and the grooves can be adjusted according to actual requirements.
Referring to fig. 2, the housing 2 is divided into a first connecting section 13 and a second connecting section 16, the piston assembly 4 includes a piston body and an extending section 14 forming a step structure with the piston body, an inner cavity of the first connecting section 13 is adapted to an outer diameter of the piston body, and a connection position of the second connecting section 16 and the first connecting section 13 forms a guiding section 15 in transition fit with the extending section 14. When the piston assembly 4 moves towards the direction approaching the expansion head 7, the cooperation of the extension section 14 and the guide section 15 provides a stable axial guide effect for the piston assembly 4, increases the stability of the system and simultaneously reduces the possibility of air leakage at the connecting position of the first connecting section 13 and the second connecting section 16.
One possibility is also to pre-form the part of the inner wall of the cavity that sealingly engages the piston assembly 4 and/or the push rod 1 with a self-sealing lubricating coating, as shown in fig. 1. It will be appreciated that the piston guide 15 may also be provided with a self-sealing lubricating coating according to actual requirements. The self air tightness of the quick locking type hole type air tightness detection device after long-term use is guaranteed, and therefore the service life of the device is prolonged.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (10)
1. A quick locking type hole type airtight detecting device, comprising:
a housing (2) having a cavity;
The piston assembly (4) is arranged in the cavity, one end of the piston assembly (4) is connected with the push rod (1), and the push rod (1) extends out of the first end of the cavity;
The other end of the piston assembly (4) is connected with a pull rod (6), the pull rod (6) extends out of the second end of the cavity, and an expanding part (9) is further arranged at one end of the pull rod (6) extending out of the cavity;
The shell (2) is also provided with an expansion head (7) positioned at the second end of the cavity, and the expansion head (7) allows the expansion part (9) to be embedded into the shell so as to realize expansion sealing of the expansion head (7) on the hole;
An air charging nozzle (11) communicated with one end of the cavity close to the expansion head (7); wherein,
At least one of the piston assembly (4) or the push rod (1) is in sealing fit with the inner wall of the cavity; the shell (2) is at least divided into two sections in the axial direction, and any two adjacent sections are detachably connected in a sealing way; the pull rod (6) passes through the expansion head (7) and is in clearance fit with the expansion head (7).
2. A quick locking hole type airtight detection apparatus as claimed in claim 1, wherein said air charging nozzle (11) is detachably connected to said cavity.
3. A quick locking type hole type airtight detection apparatus as claimed in claim 2, wherein the charging connector (11) is in threaded connection with the cavity, and a first sealing ring (10) is further arranged at a connection position of the charging connector (11) and the cavity.
4. A quick locking hole type airtight detecting device according to claim 1, further comprising a sealing fastener (8) connected to the expansion head (7) and used for being buckled outside the hole, wherein the sealing fastener (8) can be contracted towards the pull rod (6).
5. A quick lock hole type airtight inspection apparatus as claimed in claim 1, wherein an elastic member (5) for providing a restoring force to the piston assembly (4) is further provided in the cavity.
6. A quick locking type hole type airtight detection apparatus as claimed in claim 1, wherein a second sealing ring (3) is sleeved outside the piston assembly (4), and a groove is formed in the piston assembly (4) in a matched manner with the second sealing ring (3).
7. A quick locking hole type airtight detection apparatus as claimed in claim 6, wherein the second seal ring (3) is a QY type seal ring.
8. A quick locking type hole type airtight detection apparatus as claimed in claim 1, wherein any two adjacent sections of the housing (2) are connected by screw threads, and a third sealing ring (12) is further arranged at the connection position of any two adjacent sections.
9. A quick locking type hole type airtight detection apparatus as claimed in claim 8, wherein the housing (2) is divided into a first connecting section (13) and a second connecting section (16), the piston assembly (4) comprises a piston body and an extension section (14) forming a step structure with the piston body, an inner cavity of the first connecting section (13) is adapted to an outer diameter of the piston body, and a connection position of the second connecting section (16) and the first connecting section (13) forms a guide section (15) in transition fit with the extension section (14).
10. A quick lock hole type airtight detection apparatus as claimed in claim 1, wherein the portion of the inner wall of the cavity in sealing engagement with the piston assembly (4) and/or the push rod (1) is also pre-provided with a self-sealing lubricating coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322873970.XU CN220932275U (en) | 2023-10-26 | 2023-10-26 | Quick locking type hole type airtight detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322873970.XU CN220932275U (en) | 2023-10-26 | 2023-10-26 | Quick locking type hole type airtight detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220932275U true CN220932275U (en) | 2024-05-10 |
Family
ID=90969927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322873970.XU Active CN220932275U (en) | 2023-10-26 | 2023-10-26 | Quick locking type hole type airtight detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220932275U (en) |
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2023
- 2023-10-26 CN CN202322873970.XU patent/CN220932275U/en active Active
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