CN215172531U

CN215172531U - Air-conditioner inflation valve

Info

Publication number: CN215172531U
Application number: CN202120842120.1U
Authority: CN
Inventors: 李广
Original assignee: Qingdao Danowei Plastic Co ltd Jiaozhou Branch
Current assignee: Zhu Jianguo
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-12-14
Anticipated expiration: 2031-04-22

Abstract

An air conditioner inflation valve is characterized by comprising an outer cylinder, an inner cylinder, a first sealing gasket, a compression spring and an air plug piece, wherein the front end and the rear end of the outer cylinder are respectively provided with an opening; the front side of the front cavity is provided with an internal thread, the inner cylinder and the first sealing gasket are respectively sleeved in the front cavity, the inner cylinder is positioned on the rear side of the internal thread, the front side of the first sealing gasket abuts against the rear end of the inner cylinder, the rear side of the first sealing gasket abuts against the front side of the baffle ring, and the front end and the rear end of the inner cylinder are opened; under the action of the compression spring, the plug head is pressed on the second sealing gasket. The air-conditioning air path sealing device has the beneficial effects that the air-conditioning air path sealing device is beneficial to assembly and has a good air-conditioning air path sealing effect.

Description

Air-conditioner inflation valve

Technical Field

The utility model belongs to the technical field of the air conditioner technique and specifically relates to an air conditioner inflation valve.

Background

An air conditioner belongs to a refrigeration device, and during the debugging or installation process of the air conditioner, the air conditioner needs to be inflated and/or exhausted (a heat exchange medium is replaced). Or before or after the air conditioner is transported, the air conditioner is ventilated. Or the air conditioner is inflated and/or exhausted in the manufacturing process of the air conditioner.

The valve used for inflating and exhausting air for the air conditioner in and out in the prior art has the problem of high assembly difficulty.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air conditioner inflation valve for reduce the degree of difficulty of the production equipment of this type of valve.

The utility model provides a technical scheme that its technical problem adopted is:

an air conditioner inflation valve comprises an outer cylinder, an inner cylinder, a first sealing gasket, a compression spring and an air plug piece, wherein the front end and the rear end of the outer cylinder are respectively provided with an opening;

the front side of the front cavity is provided with an internal thread, the inner cylinder and the first sealing gasket are respectively sleeved in the front cavity, the inner cylinder is positioned on the rear side of the internal thread, the front side of the first sealing gasket abuts against the rear end of the inner cylinder, the rear side of the first sealing gasket abuts against the front side of the baffle ring, and the front end and the rear end of the inner cylinder are opened;

the pneumatic plug comprises a connecting rod, a plug head and a pressing piece, wherein the plug head is fixedly connected to the front end of the connecting rod, a threaded hole is formed in the pressing piece, an external thread matched with the threaded hole is formed in the connecting rod, the pressing piece is in threaded connection with the rear end of the connecting rod, a pit is formed in the front end of the plug head and is in an inner hexagon shape, the compression spring is sleeved on the connecting rod, the front end of the compression spring abuts against the rear end of the baffle ring, the rear end of the compression spring abuts against the pressing piece, the plug head is in a shape with a large front end and a small rear end, and the front end of the plug head is larger than the inner ring of the second sealing gasket;

under the action of the compression spring, the plug head is pressed on the second sealing gasket.

Further, the pressing piece is slidably connected in the rear cavity.

Further, the pressing piece comprises a plurality of wing plates, each wing plate is distributed along the circumferential direction of the pressing piece, and each wing plate is used for supporting the pressing piece in the rear cavity.

Furthermore, a first step is arranged in the front cavity, a second step is arranged on the outer side of the inner cylinder, and the second step abuts against the first step.

Further, the outer contour of any cross section of the plug head is circular.

Furthermore, a second sealing gasket is arranged in the front cavity and is positioned at the front end of the inner cylinder.

Further, the first sealing gasket comprises a protruding ring, a groove for placing the protruding ring is formed in the front side of the baffle ring, and the protruding ring is placed in the groove.

Furthermore, a snap ring is arranged on the outer ring of the outer barrel.

Has the advantages that:

the utility model is used for aerify or the work of exitting for the air conditioner. The utility model discloses a using-way is, connects air conditioner articulate to the inner tube in through the internal thread, and then connects the air conditioner the utility model discloses on. The utility model discloses after on receiving the air conditioner pipeline, owing to under compression spring's effect, the outside of chock plug is compressed tightly on first sealing washer, so can cause the blocking effect to the inner chamber of urceolus, and then do benefit to and carry out shutoff sealing work to the air conditioner pipeline. When needing to aerify, be connected to the rear end of urceolus with the charging connector, the charging connector includes thimble or top, and thimble or top are pressed the pressing part forward, and then make the chock plug follow first sealing pad and remove away from, and then make the gas circuit intercommunication, and then be used for the work of aerifing. Similarly, when the air exhaust is needed, the pressing piece is pressed through the air extracting/exchanging nozzle. The beneficial effects of the utility model are that, do benefit to equipment work, the production and processing of being convenient for. The utility model discloses an assembly process does: the connecting rod penetrates through the inner cylinder from front to back, the first sealing gasket is sleeved on the connecting rod, the sleeved component is placed into the inner cavity of the outer cylinder from the front cavity, the compression spring is placed into the outer cavity and sleeved on the connecting rod in a penetrating mode, the threaded hole of the pressing piece is aligned with the external thread of the connecting rod, the external hexagonal wrench is inserted into the concave pit, and the threaded connection between the pressing piece and the connecting rod is tightened.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic perspective view of the air blocking member;

FIG. 4 is a schematic perspective view of a first gasket;

in the figure: the sealing device comprises an outer cylinder 1, an inner cylinder 2, a first sealing gasket 3, a compression spring 4, a retaining ring 5, an internal thread 6, a connecting rod 7, a plug 8, a pressing piece 9, a pit 10, a wing plate 11, a first step 12, a second step 13, a second sealing gasket 14, a protruding ring 15 and a clamping ring 16.

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 accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 4, an air-conditioning charge valve comprises an outer cylinder 1, an inner cylinder 2, a first gasket 3, a compression spring 4 and an air plug. The two ends of the outer cylinder 1 are defined as the front end and the rear end thereof respectively. The front end and the rear end of the outer cylinder 1 are respectively provided with an opening, a baffle ring 5 is arranged in the inner cavity of the outer cylinder 1, and the baffle ring 5 divides the inner cavity of the outer cylinder 1 into a front cavity and a rear cavity. The front side of the front cavity is provided with internal threads 6, the internal threads 6 are used for connecting a joint of an air conditioning pipeline, and the joint on the air conditioning pipeline is usually made of copper. The inner cylinder 2 and the first sealing gasket 3 are respectively sleeved in the front cavity, the inner cylinder 2 is positioned at the rear side of the internal thread 6, and the front side of the first sealing gasket 3 is abutted to the rear end of the inner cylinder 2. The rear side of the first sealing gasket 3 is abutted against the front side of the baffle ring 5, and the front end and the rear end of the inner cylinder 2 are opened. The air plug comprises a connecting rod 7, a plug head 8 and a pressing piece 9. The chock plug 8 links firmly the front end at connecting rod 7, is equipped with the screw hole on the pressing piece 9, is equipped with on the connecting rod 7 to be used for with screw hole complex external screw thread, pressing piece 9 threaded connection is in the rear end of connecting rod 7. The front end of the plug 8 is provided with a pit 10, and the pit 10 is hexagonal. The compression spring 4 is sleeved on the connecting rod 7. The front end of the compression spring 4 abuts against the rear end of the baffle ring 5, the rear end of the compression spring 4 abuts against the pressing piece 9, the plug head 8 is in a shape with a large front end and a small rear end, and the front end of the plug head 8 is larger than the inner ring of the second sealing gasket 14. The plug 8 is pressed against the second gasket 14 by the compression spring 4.

As shown in fig. 1 and 2, the present invention is used for inflating or deflating an air conditioner. The utility model discloses a using-way is, connects air conditioner articulate to inner tube 2 in through internal thread 6, and then connects the air conditioner the utility model discloses on. The utility model discloses after receiving the air conditioner pipeline, owing to under compression spring 4's effect, the outside of chock plug 8 is compressed tightly on first sealed pad 3, so can cause the effect of blocking to the inner chamber of urceolus 1, and then does benefit to and carries out the work of shutoff seal to the air conditioner pipeline. When needing to inflate, be connected to the rear end of urceolus 1 with the charging connector, the charging connector includes thimble or top, and thimble or top are pressed forward to pressing member 9, and then make chock plug 8 remove from first sealed pad 3, and then make the gas circuit intercommunication, and then be used for the work of aerifing. Similarly, when the air exhaust is required, the pressing piece 9 is pressed through the air exhaust/exchange nozzle. The beneficial effects of the utility model are that, do benefit to equipment work, the production and processing of being convenient for. The utility model discloses an assembly process does: the connecting rod 7 penetrates through the inner cylinder from front to back, the first sealing gasket 3 is sleeved on the connecting rod, the sleeved component is placed into the inner cavity of the outer cylinder from the front cavity, the compression spring 4 is placed into the outer cavity and sleeved on the connecting rod 7 in a penetrating manner, the threaded hole of the pressing piece 9 is aligned with the external thread of the connecting rod, the external hexagonal wrench is inserted into the concave pit 10, and the threaded connection between the pressing piece 9 and the connecting rod is screwed.

As shown in fig. 1, the pressing member 9 is slidably coupled in the rear chamber. This facilitates protection of the pressure piece 9.

As shown in fig. 1 and 3, the pressing member 9 comprises a plurality of wings 11, each wing 11 being distributed along a circumferential direction of the pressing member 9, each wing 11 being adapted to support the pressing member 9 in the rear cavity. This does benefit to rocking that reduces connecting rod 7, does benefit to right the utility model discloses a structure protects. Meanwhile, the gap supported by the wing plates 11 is beneficial to ensuring the smoothness of the air path in the process of inflation or exhaust.

As shown in fig. 1, a first step 12 is provided in the front chamber, and a second step 13 is provided outside the inner cylinder 2, the second step abutting on the first step 12. This is favorable to the inner tube can stable cover locate in the front chamber.

As shown in fig. 1 and 3, the cross section of the plug 8 is a section perpendicular to the extending direction of the connecting rod 7, and the outer contour of any cross section of the plug 8 is circular. This is advantageous for improving the sealing performance when the plug 8 and the first gasket 3 are compressed, and also for reducing the degree of wear of the first gasket.

As shown in fig. 1, a second gasket 14 is provided in the front cavity, and the second gasket 14 is located at the front end of the inner barrel 2. The utility model discloses after connecting the air conditioner articulate, the air conditioner joint compresses tightly the sealed pad 14 of second at the front end of inner tube 2, and then improves the sealing performance of gas circuit.

As shown in fig. 1 and 2, the first sealing gasket 3 includes a protrusion ring 15, and the front side of the baffle ring 5 is provided with a groove for placing the protrusion ring 15, and the protrusion ring 15 is placed in the groove. This contributes to enhancing the sealing performance of the first gasket.

As shown in fig. 1, the outer ring of the outer cylinder 1 is provided with a snap ring 16 for facilitating connection of the inflation connector.

Claims

1. An air conditioner inflation valve is characterized by comprising an outer cylinder, an inner cylinder, a first sealing gasket, a compression spring and an air plug piece, wherein the front end and the rear end of the outer cylinder are respectively provided with an opening;

2. An air conditioning charging valve as claimed in claim 1, wherein said pressing member is slidably connected in said rear chamber.

3. An air conditioning inflation valve as claimed in claim 1, wherein said pressing member includes a plurality of wings, each wing being disposed circumferentially of said pressing member, each wing being adapted to support said pressing member in said rear chamber.

4. An air-conditioning charging valve as claimed in claim 1, wherein said front chamber has a first step therein, and said inner barrel has a second step on the outside thereof, the second step abutting against the first step.

5. An air conditioner inflation valve as claimed in claim 1, wherein the plug has a circular outer profile in any cross section.

6. An air conditioner inflation valve as claimed in claim 1, wherein a second gasket is provided in said front chamber, the second gasket being located at the front end of said inner barrel.

7. An air conditioner inflation valve as claimed in claim 1, wherein said first gasket includes a raised ring, and a groove for receiving the raised ring is formed in the front side of said retainer ring, and the raised ring is received in the groove.

8. An air-conditioning charging valve as claimed in claim 1, wherein the outer ring of the outer cylinder is provided with a snap ring.