CN219657101U - Screw thread blind hole gas tightness detection device - Google Patents
Screw thread blind hole gas tightness detection device Download PDFInfo
- Publication number
- CN219657101U CN219657101U CN202321096572.5U CN202321096572U CN219657101U CN 219657101 U CN219657101 U CN 219657101U CN 202321096572 U CN202321096572 U CN 202321096572U CN 219657101 U CN219657101 U CN 219657101U
- Authority
- CN
- China
- Prior art keywords
- blind hole
- sealing head
- detection device
- vent pipe
- threaded blind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 239000004047 hole gas Substances 0.000 title claims description 4
- 238000007789 sealing Methods 0.000 claims abstract description 55
- 239000005060 rubber Substances 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a detection device, in particular to a threaded blind hole air tightness detection device, which mainly solves the technical problem that the detection cost is high because the existing air tightness detection device is used for designing parts with larger bearing pressure due to the fact that the parts need larger size and bear pressure. Comprises a vent pipe, a connector, a sealing head and a hollow stud; the hollow stud is used for being matched with the threaded blind hole to be detected and connected into the threaded blind hole to be detected; one end of the vent pipe is connected with one end of the connector, and the other end of the connector is connected with an external air source; one end of the sealing head is connected with the other end of the vent pipe, the other end of the sealing head is connected with one end of the hollow stud, and the other end of the sealing head is used for abutting against the end face of a part where the threaded blind hole to be detected is located when the hollow stud is connected into the threaded blind hole to be detected, so that the opening of the threaded blind hole is sealed; the sealing head is provided with an air guide hole for communicating the hollow stud and the vent pipe.
Description
Technical Field
The utility model relates to a detection device, in particular to a threaded blind hole air tightness detection device.
Background
Sealing devices are widely used in many industries, such as underwater equipment, automobile gearboxes and the like, and the reliability of the sealing devices directly affects the service life of the whole equipment, so the design of the sealing devices and the detection of sealing conditions are particularly important.
The existing air tightness detection device mainly depends on an air tightness detection machine to be matched with a special fixture for a part, the part is placed on a lifting table of the machine, all air outlets of the part are blocked on the lifting table, then the lifting table is lowered, the leakage detection process is carried out, the air is inflated, balanced, detected and exhausted to the inner cavity of the part, the whole process generally needs about 6 minutes, the air tightness detection device is generally special for the special machine, and the special fixture for the part is required to be clamped.
However, the existing air tightness detection device has higher detection cost for the parts with larger size and larger bearing pressure due to the larger size.
Disclosure of Invention
The utility model aims to solve the technical problem that the existing air tightness detection device has high detection cost due to the fact that the size is larger and the bearing pressure is larger for parts with larger bearing pressure, and provides a threaded blind hole air tightness detection device.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a screw thread blind hole gas tightness detection device which characterized in that:
comprises a vent pipe, a connector, a sealing head and a hollow stud;
the hollow stud is used for being matched with the threaded blind hole to be detected and connected into the threaded blind hole to be detected;
one end of the vent pipe is connected with one end of the connector, and the other end of the connector is used for being connected with an external air source;
one end of the sealing head is connected with the other end of the vent pipe, the other end of the sealing head is connected with one end of the hollow stud, and the other end of the sealing head is used for abutting against the end face of a part where the threaded blind hole to be detected is located when the hollow stud is connected into the threaded blind hole to be detected, so that the opening of the threaded blind hole is sealed;
and the sealing head is provided with an air guide hole for communicating the hollow stud and the vent pipe.
Further, the vent pipe is a hose;
the hollow joint is also included;
one end of the sealing head is connected with the other end of the vent pipe through a hollow joint.
Further, the hollow joint is made of bearing steel.
Further, the shaft head of the hollow joint is provided with a chamfer, the roughness of the outer surface is smaller than Ra3.2, and the hollow joint is in interference fit with the vent pipe.
Further, the sealing head is a connecting nut;
one end of the connecting nut is connected with the hollow joint, and the other end of the connecting nut is connected with one end of the hollow stud.
Further, the sealing device also comprises a sealing ring;
the sealing ring is sleeved at one end of the hollow stud close to the sealing head and is used for being abutted between the end face of the part where the threaded blind hole to be detected is located and the sealing head when the hollow stud is connected into the threaded blind hole to be detected.
Further, the sealing ring is made of rubber, silica gel or fluorine rubber.
Further, the connector is a three-way connector or a four-way connector;
one end of the vent pipe is connected with one of the three-way joint or the four-way joint, and the other joints of the three-way joint or the four-way joint are used for being connected with an external air source.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the vent pipe, the connector, the sealing head and the hollow stud are arranged to be respectively connected with an external air source and the threaded blind hole, and high-pressure air is filled into the threaded blind hole through the connector, the vent pipe, the sealing head and the hollow stud sequentially by the external air source, so that the air tightness detection of the threaded blind hole is rapidly completed through watertight detection, and the integrated device has the advantages of simple structure, easiness in production and manufacture and lower cost.
2. The utility model can conveniently adjust the orientation of the connector by using the hose as the vent pipe, and is convenient for the adaptive adjustment according to different external air sources, thereby being convenient for the assembly of the device and the external air sources.
3. According to the utility model, the air tightness of the whole structure can be further improved when the hollow stud is connected into the threaded blind hole through the arranged sealing ring, and inaccurate detection results caused by air leakage at the opening of the threaded blind hole are prevented.
Drawings
FIG. 1 is a schematic view of a first view angle structure of an embodiment of a blind threaded hole air tightness detection device according to the present utility model;
fig. 2 is a schematic view of a second view angle structure of an embodiment of a blind hole tightness detection device according to the present utility model.
In the figure: 1-breather pipe, 2-connector, 3-hollow connector, 4-sealing head, 5-sealing ring and 6-hollow stud.
Detailed Description
In order to make the objects, advantages and features of the present utility model more apparent, the present utility model provides a blind threaded hole tightness detection device, which is described in further detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present utility model will become more apparent from the following detailed description.
The utility model discloses a device for detecting air tightness of a threaded blind hole, which is shown in fig. 1 and 2 and comprises a vent pipe 1, a connector 2, a sealing head 4 and a hollow stud 6.
The specific model size of the hollow stud 6 needs to be specifically selected according to different threaded blind holes to be detected, so that the hollow stud 6 is used for being matched with the threaded blind holes to be detected, and the hollow stud 6 is connected into the threaded blind holes to be detected for air tightness detection; one end of the vent pipe 1 is detachably connected with one end of the connector 2, the other end of the connector 2 is connected with an external air source, and the external air source is used for providing an air source with required pressure for the detection device, so that the air tightness of the threaded blind hole can be conveniently detected through watertight detection; in a preferred embodiment of the present utility model, the connector 2 is configured as a three-way connector or a four-way connector, so that other devices can be conveniently connected, and the applicability is improved.
One end of the sealing head 4 is connected with the other end of the vent pipe 1, the other end of the sealing head 4 is detachably connected with one end of the hollow stud 6, and the other end of the sealing head 4 is used for abutting against the end face of a part at the opening of the threaded blind hole to be detected when the hollow stud 6 is connected into the threaded blind hole to be detected, so that the opening of the threaded blind hole is sealed; an air guide hole is arranged on the sealing head 4 along the axial direction of the sealing head and is used for communicating the hollow stud 6 with the vent pipe 1, so that air filled by an external air source passes through the connector 2, the vent pipe 1, the sealing head 4 and the hollow stud 6 to the threaded blind hole in sequence.
For the detachable connection, a person skilled in the art can select connection modes such as threaded connection, clamping connection, interference fit and the like according to specific requirements, so that the detachable connection can be conveniently and rapidly detached, and the air tightness requirement can be met.
In a preferred embodiment of the utility model, the vent pipe 1 is provided as a hose, so that the position of the connector 2 can be arbitrarily adjusted, and different external air sources can be conveniently connected; in order to facilitate the connection of the vent pipe 1 and the sealing head 4, a hollow joint 3 is also arranged, the hollow joint 3 is made of bearing steel, and in order to facilitate the connection of the hollow joint 3 and the vent pipe 1, a chamfer angle is arranged on a shaft head of the hollow joint 3; the roughness of the outer surface of the sealing head is smaller than Ra3.2, enough connection strength and high air tightness can be ensured, one end of the sealing head 4 is connected with the other end of the vent pipe 1 through the hollow joint 3, and the hollow joint 3 is in interference fit with the vent pipe 1.
The sealing head 4 is a connecting nut, in particular, the connecting nut adopts a hexagonal nut, the universality is higher, the cost is lower, one end of the connecting nut is connected with the hollow joint 3, and the other end is connected with one end of the hollow stud 6; also comprises a sealing ring 5; the sealing ring 5 is sleeved at one end of the hollow stud 6 close to the sealing head 4 and is used for abutting between the end face of the part where the threaded blind hole to be detected is located and the sealing head 4 when the hollow stud 6 is connected into the threaded blind hole to be detected, so as to seal the opening of the threaded blind hole; in a preferred embodiment of the present utility model, the sealing ring 5 may be made of rubber, silica gel, fluorine gel or other common materials, or may be a standard O-ring.
During detection, the hollow stud 6 is screwed into a threaded blind hole to be detected, the hollow stud is screwed by a spanner, soapy water is brushed on the side surface, the back surface and the like of a part where the threaded blind hole is located or the part is soaked in water, the connector 2 is connected with an external air source, high-pressure air is introduced into the threaded blind hole for a preset time, whether bubbles are generated or whether the part bubbles in the water or not is observed during the time, if no bubbles exist, the air tightness of the threaded blind hole of the part is qualified, and if the part exists, the air tightness of the threaded blind hole of the part is not qualified.
Claims (8)
1. Screw thread blind hole gas tightness detection device, its characterized in that:
comprises a vent pipe (1), a connector (2), a sealing head (4) and a hollow stud (6);
the hollow stud (6) is used for being matched with a threaded blind hole to be detected and connected into the threaded blind hole to be detected;
one end of the vent pipe (1) is connected with one end of the connector (2), and the other end of the connector (2) is connected with an external air source;
one end of the sealing head (4) is connected with the other end of the vent pipe (1), the other end of the sealing head is connected with one end of the hollow stud (6), and the other end of the sealing head (4) is used for abutting against the end face of a part where the threaded blind hole to be detected is located when the hollow stud (6) is connected into the threaded blind hole to be detected, so that the opening of the threaded blind hole is sealed;
the sealing head (4) is provided with an air guide hole for communicating the hollow stud (6) with the vent pipe (1).
2. The blind threaded hole air tightness detection device according to claim 1, wherein:
the vent pipe (1) is a hose;
one end of the sealing head (4) is connected with the other end of the vent pipe (1) through the hollow joint (3).
3. The threaded blind hole air tightness detection device according to claim 2, wherein:
the hollow joint (3) is made of bearing steel.
4. A blind threaded hole air tightness detection device according to claim 3, wherein:
the hollow joint (3) is provided with a chamfer, the roughness of the outer surface is smaller than Ra3.2, and the hollow joint is in interference fit with the vent pipe (1).
5. The blind threaded hole air tightness detection device according to claim 4, wherein:
the sealing head (4) is a connecting nut;
one end of the connecting nut is connected with the hollow joint (3), and the other end of the connecting nut is connected with one end of the hollow stud (6).
6. The blind hole air tightness detection device according to any of claims 1-5, wherein:
also comprises a sealing ring (5);
the sealing ring (5) is sleeved at one end, close to the sealing head (4), of the hollow stud (6) and is used for being abutted between the end face of a part where the threaded blind hole to be detected is located and the sealing head (4) when the hollow stud (6) is connected into the threaded blind hole to be detected.
7. The blind threaded hole air tightness detection device according to claim 6, wherein:
the sealing ring (5) is made of rubber, silica gel or fluorine rubber.
8. The blind threaded hole air tightness detection device according to claim 7, wherein:
the connector (2) is a three-way connector or a four-way connector;
one end of the vent pipe (1) is connected with one of the three-way joint or the four-way joint, and the other joints of the three-way joint or the four-way joint are used for being connected with an external air source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321096572.5U CN219657101U (en) | 2023-05-09 | 2023-05-09 | Screw thread blind hole gas tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321096572.5U CN219657101U (en) | 2023-05-09 | 2023-05-09 | Screw thread blind hole gas tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219657101U true CN219657101U (en) | 2023-09-08 |
Family
ID=87856443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321096572.5U Active CN219657101U (en) | 2023-05-09 | 2023-05-09 | Screw thread blind hole gas tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219657101U (en) |
-
2023
- 2023-05-09 CN CN202321096572.5U patent/CN219657101U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |