CN111220193A - Leak protection gas instrument connector - Google Patents
Leak protection gas instrument connector Download PDFInfo
- Publication number
- CN111220193A CN111220193A CN202010142145.0A CN202010142145A CN111220193A CN 111220193 A CN111220193 A CN 111220193A CN 202010142145 A CN202010142145 A CN 202010142145A CN 111220193 A CN111220193 A CN 111220193A
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- connecting piece
- thimble
- vent
- cavity
- instrument connector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
Abstract
The invention belongs to the technical field of instrument installation accessories and discloses an air leakage prevention instrument connector which comprises a connecting body, wherein a first connecting part is arranged at the top end of the connecting body, and a second connecting part is arranged at the bottom end of the connecting body; a vent cavity is arranged in the connecting body, a first vent hole communicated with the vent cavity is formed in the top of the first connecting part, and a second vent hole communicated with the vent cavity is longitudinally formed in the bottom of the second connecting part; a plugging thimble is further arranged in the ventilation cavity along the length direction of the connecting body, a plug with the diameter larger than that of the second ventilation hole and smaller than that of the ventilation cavity is arranged at the top end of the plugging thimble, and a spring is abutted between the top of the plug and the top wall of the ventilation cavity; the bottom end of the plugging thimble downwards penetrates out of the second vent hole. The invention can effectively prevent gas leakage when the instrument is replaced, has better sealing effect, and is convenient and practical to install.
Description
Technical Field
The invention belongs to the technical field of instrument installation accessories, and particularly relates to a connector of an air leakage prevention instrument.
Background
In the instrument replacement process of the existing fire-fighting equipment (such as a fire extinguisher), gas in the fire-fighting equipment after the instrument is taken down can leak to the air from the instrument installation part, so that the gas resource is wasted, and the air is polluted, so that the gas is inhaled by operating personnel to injure the body, and the instrument is very inconvenient, and related accessories which can effectively prevent the gas leakage do not exist in the existing instrument installation accessories.
Disclosure of Invention
The invention aims to provide a gas leakage prevention instrument connector, which solves the problem that gas is easy to leak in the instrument replacement process.
The technical scheme adopted by the invention is as follows:
an air leakage prevention instrument connector comprises a connecting body, wherein a first connecting part is arranged at the top end of the connecting body, and a second connecting part is arranged at the bottom end of the connecting body; a vent cavity is arranged in the connecting body, a first vent hole communicated with the vent cavity is formed in the top of the first connecting part, and a second vent hole communicated with the vent cavity is longitudinally formed in the bottom of the second connecting part;
a plugging thimble is further arranged in the ventilation cavity along the length direction of the connecting body, a plug with the diameter larger than that of the second ventilation hole and smaller than that of the ventilation cavity is arranged at the top end of the plugging thimble, and a spring is abutted between the top of the plug and the top wall of the ventilation cavity; the bottom end of the plugging thimble downwards penetrates out of the second vent hole; the diameter of the blocking thimble is smaller than that of the second vent hole.
In a preferred technical scheme, the connecting body comprises an outer connecting piece, an inner connecting piece and a butting cover; the first connecting part is arranged on the periphery of the top end of the outer connecting piece, the upper end of the inner connecting piece is sleeved in the lower end of the outer connecting piece, and the second connecting part is arranged on the periphery of the bottom end of the inner connecting piece; the top end of the outer connecting piece is fixedly sleeved with a propping cover, and the propping cover, the inner wall of the outer connecting piece and the top of the inner connecting piece form the ventilation cavity; the first vent hole is arranged on the abutting cover.
In a preferred technical scheme, the top of the inner connecting piece is provided with an installation groove, and the second vent hole is formed in the bottom of the installation groove; the installation groove is internally provided with the plugging thimble, and the diameter of a plug of the plugging thimble is smaller than that of the installation groove.
In a preferred technical scheme, a first sealing ring is arranged at the bottom of the mounting groove, and the top of the first sealing ring is abutted to the bottom of the plug.
In a preferred technical scheme, a hexagonal nut is fixedly sleeved on the outer side of the outer connecting piece.
In a preferred technical scheme, a second sealing ring is arranged between the outer connecting piece and the inner connecting piece.
In a preferred technical scheme, one end of the inner connecting piece, which is close to the second connecting part, is sleeved with a rubber ring, and the rubber ring is positioned between the bottom of the outer connecting piece and the second connecting part.
In a preferred technical scheme, the bottom of the abutting cover is provided with a sinking groove matched with the end part of the spring.
In a preferred technical scheme, the outer sides of the first connecting part and the second connecting part are both provided with thread structures.
When the fire-fighting equipment (such as a fire extinguisher) is adopted for replacing the instrument, the connector is turned by the hexagon nut, so that the bottom end of the plugging thimble is popped out under the action of the spring, and the plug can be matched with the first sealing ring to plug the second vent hole, so that gas can be prevented from leaking through the second vent hole before the instrument is replaced; and after installing new instrument on this connector, this connector of forward locking, the mounting groove bottom surface through installing this connector is pressed with the support of shutoff thimble bottom, make elasticity thimble and end cap retract back, end cap and first sealing washer exist the interval this moment and because the clearance of shutoff thimble and in-connection connecting piece, make the gas in the fire-fighting equipment can pass through this clearance, the interval can upwards get into to the chamber of ventilating in proper order from the second vent, first vent, get into in the instrument at last, just so accomplished the drainage to the instrument and leaked the change, and convenient operation, practicality.
The invention has the beneficial effects that:
according to the invention, the spring and the plugging thimble in the ventilation cavity are matched with the internal connecting piece, so that the ventilation cavity and the second ventilation hole can be blocked and communicated when the instrument is replaced, the gas leakage in the fire-fighting equipment is effectively prevented, and the gas leakage prevention installation can be carried out; meanwhile, the sealing effect of the fire fighting equipment is better by arranging the first sealing ring and the second sealing ring, and the gas leakage of the instrument mounting groove and the second connecting part of the fire fighting equipment can be better prevented when the instrument is replaced by arranging the rubber ring.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention in an occluding position;
fig. 3 is a schematic cross-sectional view of the present invention in a non-occluded state.
In the figure: 1-an external connection; 101-a first connection; 102-hexagonal nut; 2-inner connecting piece; 201-a second connection portion; 202-a second vent; 203-mounting grooves; 3-abutting the cover; 301-a first vent; 4-plugging the thimble; 5-a second sealing ring; 6-rubber ring; 7-a spring; 8-a ventilation lumen; 9-first sealing ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, or the orientation or the positional relationship which is usually understood by those skilled in the art, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; may be directly connected or indirectly connected through an intermediate. For those skilled in the art, the drawings of the above-mentioned terms in the embodiments of the present invention can be understood in specific situations, and the technical solutions in the embodiments of the present invention are clearly and completely described. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The invention is further described with reference to the following figures and specific embodiments.
With reference to fig. 1-3, a connector for various air leakage prevention instruments includes a connecting body, a first connecting portion 101 is disposed at the top end of the connecting body, and a second connecting portion 201 is disposed at the bottom end of the connecting body; a vent cavity 8 is arranged in the connecting body, a first vent hole 301 communicated with the vent cavity 8 is formed in the top of the first connecting part 101, and a second vent hole 202 communicated with the vent cavity 8 is longitudinally formed in the bottom of the second connecting part 201;
the first connection portion 101 and the second connection portion 201 are used for connection with an instrument, a fire-fighting equipment (such as a fire extinguisher), and preferably are hermetically and detachably connected, respectively. The first and second vents 301 and 202 are located at the top and bottom of the vent chamber 8, respectively, and are connected to the vent chamber 8 such that the fire equipment stored gas enters the gauge through the second vent 202, the vent chamber 8, and the first vent 301.
A plugging thimble 4 is further arranged in the vent cavity 8 along the length direction of the connecting body, a plug with the diameter larger than that of the second vent hole 202 and smaller than that of the vent cavity 8 is arranged at the top end of the plugging thimble 4, and a spring 7 is abutted between the top of the plug and the top wall of the vent cavity 8; the bottom end of the plugging thimble 4 penetrates out of the second vent hole 202 downwards; the diameter of the blocking thimble 4 is smaller than that of the second vent hole 202.
The blocking thimble 4 is movably arranged in the second vent hole 202, can move up and down, and is used for gas to pass through a gap between the blocking thimble and the hole wall of the second vent hole 202. The plug at the top end of the plugging thimble 4 is used for plugging the second vent 202, so that the second vent 202 is isolated from the gas phase, and the effect of preventing gas leakage is achieved. Since the diameter of the plug is also smaller than the diameter of the venting chamber 8, the gap between the two is also used for the passage of gas. The choke plug can plug the second vent hole 202 under the supporting action of the spring 7. The bottom of shutoff thimble 4 passes second venthole 202 and stretches out and connect outside this body, can support with the groove face of fire-fighting equipment instrument mounting groove through its bottom when installing this instrument connector like this and press mutually for second venthole 202 and ventilation cavity 8 intercommunication realize that the gas pocket and the instrument intercommunication and the instrument of instrument mounting groove can be to the control of data such as fire-fighting equipment internal gas pressure.
In order to facilitate better disassembly and assembly and replacement of the components, as shown in fig. 1 and 2, in a preferred embodiment, the connecting body comprises an outer connecting piece 1, an inner connecting piece 2 and a butting cover 3; the first connecting part 101 is arranged on the periphery of the top end of the outer connecting part 1, the upper end of the inner connecting part 2 is sleeved in the lower end of the outer connecting part 1, and the second connecting part 201 is arranged on the periphery of the bottom end of the inner connecting part 2; the top end of the outer connecting piece 1 is fixedly sleeved with a butting cover 3, and the butting cover, the inner wall of the outer connecting piece 1 and the top of the inner connecting piece 2 form the ventilation cavity 8; the first vent hole 301 is arranged on the abutting cover 3.
In order to better facilitate the installation and positioning and the up-and-down movement of the plugging thimble 4, as shown in fig. 2, in a preferred embodiment, the top of the inner connecting member 2 is provided with an installation groove 203, and the second ventilation hole 202 is provided at the bottom of the installation groove 203; the installation groove 203 is internally provided with the plugging thimble 4, and the diameter of a plug of the plugging thimble 4 is smaller than that of the installation groove 203.
In order to improve the sealing performance of the plug when the second ventilation hole 202 is sealed, in a preferred embodiment, as shown in fig. 2, a first sealing ring is arranged at the bottom of the mounting groove 203, and the top of the first sealing ring is abutted against the bottom of the plug. Due to the arrangement of the first sealing ring, the sealing effect of the plug is better when the plug blocks the second ventilation hole 202. Preferably, when the bottom of the plug abuts against the first sealing ring, the length of the bottom end of the plugging thimble 4 extending out of the inner connecting piece 2 is 0.8mm, so that the whole body can be slightly unscrewed only when the meter is replaced and plugging is to be performed through the plug.
In order to facilitate the screwing of the whole, in a preferred embodiment, a hexagonal nut 102 is fixedly sleeved on the outer side of the outer connecting piece 1, as shown in fig. 1 and 2. As shown in FIG. 2, the hexagonal nut 102 is integrally formed with the external connection, so that the number of parts is reduced, and the connector can be rotated by matching with a common wrench tool, which is more convenient.
In order to improve the sealing between the outer connecting piece 1 and the inner connecting piece 2, in a preferred embodiment, a second sealing ring 5 is arranged between the outer connecting piece 1 and the inner connecting piece 2, as shown in fig. 1 and 2.
In order to improve the sealing effect between the bottom end of the inner connecting member 2 and the instrument mounting groove of the fire-fighting equipment, as shown in fig. 1 and 2, in a preferred embodiment, a rubber ring 6 is sleeved at one end of the inner connecting member 2 close to the second connecting portion 201, and the rubber ring 6 is located between the bottom of the outer connecting member 1 and the second connecting portion 201, so that the sealing effect is better due to the sealing effect of the rubber ring 6 matched with the thread structure.
In order to make the spring 7 more stable when it extends and contracts, as shown in fig. 2, in a preferred embodiment, the bottom of the abutting cover 3 is provided with a sunken groove matching with the end of the spring 7.
In order to facilitate the convenience of assembling and disassembling the two ends of the whole body in the instrument mounting grooves of the instrument and the fire-fighting equipment respectively, as shown in fig. 1 and fig. 2, in a preferred embodiment, the outer sides of the first connecting part 101 and the second connecting part 201 are both provided with thread structures.
The working principle of the invention is as follows: when the instrument of the fire-fighting equipment (such as a fire extinguisher) is replaced, the connector is slightly unscrewed through the hexagon nut 102, so that the bottom end of the plugging thimble 4 is popped out under the action of the spring 7, and the plug of the connector can be matched with the first sealing ring to plug the second vent hole 202, so that gas can be prevented from leaking through the second vent hole 202 before the instrument is replaced; and after installing new instrument on this connector, this connector of forward screwing, the mounting groove bottom surface through installing this connector is pressed with the support of 4 bottoms of shutoff thimble, make elasticity thimble and end cap retract, end cap and first sealing washer exist the interval and because the clearance of shutoff thimble 4 and interior connecting piece 2 this moment, as shown in fig. 3, make the gas in the fire-fighting equipment can pass through this clearance, the interval can upwards get into to ventilate the chamber 8 in proper order from second venthole 202, first air vent 301, in getting into the instrument at last, just so accomplished the drainage of instrument and leaked the change, convenient operation, practicality.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (9)
1. The utility model provides a leak protection gas instrument connector which characterized in that: the connecting structure comprises a connecting body, wherein a first connecting part (101) is arranged at the top end of the connecting body, and a second connecting part (201) is arranged at the bottom end of the connecting body; a vent cavity (8) is arranged in the connecting body, a first vent hole (301) communicated with the vent cavity (8) is formed in the top of the first connecting part (101), and a second vent hole (202) communicated with the vent cavity (8) is longitudinally formed in the bottom of the second connecting part (201);
a blocking thimble (4) is further arranged in the ventilation cavity (8) along the length direction of the connecting body, a plug with the diameter larger than that of the second ventilation hole (202) and smaller than that of the ventilation cavity (8) is arranged at the top end of the blocking thimble (4), and a spring (7) is abutted between the top of the plug and the top wall of the ventilation cavity (8); the bottom end of the plugging thimble (4) downwards penetrates out of the second vent hole (202); the diameter of the blocking thimble (4) is smaller than that of the second vent hole (202).
2. An anti-leakage instrument connector according to claim 1, characterized in that: the connecting body comprises an outer connecting piece (1), an inner connecting piece (2) and a butting cover (3); the first connecting part (101) is arranged on the periphery of the top end of the outer connecting piece (1), the upper end of the inner connecting piece (2) is sleeved in the lower end of the outer connecting piece (1), and the second connecting part (201) is arranged on the periphery of the bottom end of the inner connecting piece (2); a propping cover (3) is fixedly sleeved in the top end of the outer connecting piece (1), and the propping cover, the inner wall of the outer connecting piece (1) and the top of the inner connecting piece (2) form a ventilation cavity (8); the first vent hole (301) is arranged on the abutting cover (3).
3. An anti-leakage instrument connector according to claim 2, characterized in that: the top of the inner connecting piece (2) is provided with a mounting groove (203), and the second vent hole (202) is formed in the bottom of the mounting groove (203); the installation groove (203) is internally provided with the plugging thimble (4), and the diameter of a plug of the plugging thimble (4) is smaller than that of the installation groove (203).
4. An anti-leakage instrument connector according to claim 3, characterized in that: the bottom of the mounting groove (203) is provided with a first sealing ring, and the top of the first sealing ring is abutted to the bottom of the plug.
5. An anti-leakage instrument connector according to claim 2, characterized in that: the outer side of the outer connecting piece (1) is fixedly sleeved with a hexagonal nut (102).
6. An anti-leakage instrument connector according to claim 2, characterized in that: and a second sealing ring (5) is arranged between the outer connecting piece (1) and the inner connecting piece (2).
7. An anti-leakage instrument connector according to claim 2, characterized in that: one end, close to the second connecting portion (201), of the inner connecting piece (2) is sleeved with a rubber ring (6), and the rubber ring (6) is located between the bottom of the outer connecting piece (1) and the second connecting portion (201).
8. An anti-leakage instrument connector according to claim 2, characterized in that: the bottom of the abutting cover (3) is provided with a sinking groove matched with the end part of the spring (7).
9. An anti-leakage instrument connector according to any one of claims 1-8, characterized in that: the outer sides of the first connecting portion (101) and the second connecting portion (201) are both provided with thread structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010142145.0A CN111220193A (en) | 2020-03-04 | 2020-03-04 | Leak protection gas instrument connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010142145.0A CN111220193A (en) | 2020-03-04 | 2020-03-04 | Leak protection gas instrument connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111220193A true CN111220193A (en) | 2020-06-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010142145.0A Pending CN111220193A (en) | 2020-03-04 | 2020-03-04 | Leak protection gas instrument connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111220193A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504223A (en) * | 2021-05-27 | 2021-10-15 | 上海工艺美术职业学院 | Gas detection valve and ozone disinfection bedspread |
-
2020
- 2020-03-04 CN CN202010142145.0A patent/CN111220193A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504223A (en) * | 2021-05-27 | 2021-10-15 | 上海工艺美术职业学院 | Gas detection valve and ozone disinfection bedspread |
| CN113504223B (en) * | 2021-05-27 | 2022-11-25 | 上海工艺美术职业学院 | Gas detection valve and ozone disinfection bedspread |
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Effective date of registration: 20220606 Address after: 518000 room 516-517, building B, zone 5, honghualing Industrial Park, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong Province Applicant after: Zhongshen security technology (Shenzhen) Co.,Ltd. Address before: 18h, block a, changfengyuan, 2021 Chunfeng Road, Wenjin community, Nanhu street, Luohu District, Shenzhen, Guangdong 518000 Applicant before: Wuyutong (Shenzhen) Technology Co.,Ltd. |