CN220302998U - Two-way pressure-maintaining pipeline connection structure - Google Patents

Abstract

The invention discloses a bidirectional pressure-maintaining pipeline connection structure, which includes a first connecting pipe and a second connecting pipe that can be connected and detached to each other. When it is in the disassembled state, it can prevent the leakage of refrigerant from the pipelines at both ends, and when it is connected, it can ensure that the pipelines are connected; moreover, the invention is simple to operate. When leaving the factory, you only need to connect the components, fill them with refrigerant and then disassemble them, and then each component can be connected. The components are packaged and shipped to users. Users can complete the installation by themselves after receiving the goods, greatly improving efficiency.

Description

Two-way pressure-maintaining pipeline connection structure

Technical field

The invention relates to the technical field of pipeline connection, and in particular to a bidirectional pressure-maintaining pipeline connection structure.

Background technique

Refrigeration equipment usually includes components such as a compressor, an indoor unit, and an outdoor unit. Each component is connected through pipelines. When in use, pipelines must be used to connect the various components of the refrigeration equipment, and refrigerants (such as Freon) must be added to the pipelines. , to ensure the normal operation of refrigeration equipment. When installing refrigeration equipment, the process of adding refrigerant is more professional. Therefore, the equipment manufacturer needs to equip professional installers. The installers bring various components of the refrigeration equipment to the site, connect the components, and then add refrigerant to the pipelines. This installation method greatly increases the manufacturer's labor and time costs.

Contents of the invention

The purpose of the present invention is to at least solve one of the technical problems existing in the prior art, and provide a two-way pressure-maintaining pipeline connection structure that can prevent the leakage of refrigerant from the pipelines at both ends when in the disassembled state, and can ensure that the pipes are connected when in the connected state. Moreover, the invention is simple to operate. When leaving the factory, you only need to connect each component, fill it with refrigerant and then disassemble it. Then each component can be packaged and shipped to the user. The user can complete the installation by himself after receiving the goods, which greatly improves efficiency. .

The technical solutions adopted by the present invention to solve the technical problems are:

A two-way pressure-maintaining pipeline connection structure, including

The first connecting pipe is provided with a connecting sleeve on the front end of the first connecting pipe. The connecting sleeve is provided with internal threads. The inner wall of the first connecting pipe is provided with a first limiting platform. The first connecting pipe is A first movable rod is provided inside. The end of the first movable rod is connected to a first pressure-maintaining plate. The front end of the first movable rod is connected to a first docking plate. The first docking plate is provided with a number of through holes. The first pressure retaining plate can abut against the first limiting platform and seal the inside of the first connecting pipe. A first elastic element is set on the first movable rod. The first elastic element One end is connected to the first docking plate, and the other end of the first elastic element is connected to the front end of the first connecting pipe; and

A second connecting pipe. The front end of the second connecting pipe is provided with an external thread that can cooperate with the connecting sleeve. The inner wall of the second connecting pipe is provided with a second limiting platform. The inner wall of the second connecting pipe is provided with a second limiting platform. There is a second movable rod. The end of the second movable rod is connected to a second pressure-maintaining plate. The front end of the second movable rod is connected to a second docking plate. The second docking plate is provided with a number of through holes. The two pressure-maintaining plates can push against the second limiting platform and seal the inside of the second connecting pipe. The second movable rod is covered with a second elastic element, and one end of the second elastic element is connected to On the second docking plate, the other end of the second elastic element is connected to the second limiting platform.

The above two-way pressure-maintaining pipeline connection structure has the following beneficial effects: in the disassembly state, since the first connecting pipe and the second connecting pipe are effectively blocked respectively, the leakage of refrigerant in the pipelines at both ends can be prevented. In the connected state, It can also ensure that the first connecting pipe and the second connecting pipe are connected.

Therefore, when refrigeration equipment manufacturers deliver goods to users, they no longer need to arrange for a professional installation engineer to come to the user's site to install various components and then fill the refrigerant. Before the equipment leaves the factory, the manufacturer only needs to simply connect the components of the refrigeration equipment, fill it with refrigerant, and then disassemble and package it before shipping. After receiving the equipment, users do not need professionals to assist in installation. They only need to reconnect the two-way pressure-maintaining pipeline connection structure before use. The invention is simple to operate, greatly improves efficiency, and reduces costs for both parties.

A bidirectional pressure-maintaining pipeline connection structure according to the first aspect of the present invention is characterized in that the radial cross-section of the connecting sleeve is a regular hexagon.

A bidirectional pressure-maintaining pipeline connection structure according to the first aspect of the present invention is characterized in that a rotating part is provided on the peripheral side of the middle part of the second connecting pipe, and the radial cross-section of the rotating part is a regular hexagon.

A bidirectional pressure-maintaining pipeline connection structure according to the first aspect of the present invention, characterized in that a sealing ring is provided at the front edge of the first connecting pipe, and the sealing ring is located in the connecting sleeve.

A bidirectional pressure-maintaining pipeline connection structure according to the first aspect of the present invention is characterized in that a first pipeline sleeve is screwed around the end of the first connecting pipe.

A bidirectional pressure-maintaining pipeline connection structure according to the first aspect of the present invention is characterized in that a second pipeline sleeve is screwed around the end of the second connecting pipe.

Description of drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the drawings needed to be used in the description of the embodiments will be briefly described below. Obviously, the described drawings are only some of the embodiments of the present invention, not all embodiments. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without exerting creative efforts:

Figure 1 is a schematic structural diagram of an embodiment of the present invention;

Figure 2 is a radial cross-sectional view of an embodiment of the present invention;

Figure 3 is a schematic structural diagram of the first connecting pipe in the embodiment of the present invention;

Figure 4 is a radial cross-sectional view of the first connecting pipe in the embodiment of the present invention;

Figure 5 is a schematic structural diagram of the second connecting pipe in the embodiment of the present invention;

Figure 6 is a radial cross-sectional view of the second connecting pipe in the embodiment of the present invention.

Detailed ways

This section will describe the specific embodiments of the present invention in detail. The preferred embodiments of the present invention are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand the present invention. Each technical feature and overall technical solution of the invention shall not be construed as limiting the scope of protection of the invention.

In the description of the present invention, it should be understood that orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or position relationships shown in the drawings and are only In order to facilitate the description of the present invention and simplify the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of the present invention, several means one or more, plural means two or more, greater than, less than, more than, etc. are understood to exclude the original number, and above, below, within, etc. are understood to include the original number. If there is a description of first and second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of indicated technical features. relation.

In the description of the present invention, unless otherwise explicitly limited, words such as setting, installation, and connection should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

Referring to FIGS. 1 to 6 , this embodiment provides a bidirectional pressure-maintaining pipeline connection structure for refrigeration equipment, including a first connecting pipe 100 and a second connecting pipe 200 . In order to facilitate the description of the embodiment of the present invention, the front and rear ends of the "first connecting pipe 100" and the front and rear ends of the "second connecting pipe 200" are defined as follows: the front end of the first connecting pipe 100 refers to the front end that is in contact with the second connecting pipe 200 One end of the first connecting pipe 100 refers to the end away from the second connecting pipe 200; the front end of the second connecting pipe 200 refers to the end in contact with the first connecting pipe 100, and the rear end of the second connecting pipe 200 is Refers to the end far away from the first connecting pipe 100 .

Among them, a connecting sleeve 110 is provided around the front end of the first connecting pipe 100, and the connecting sleeve 110 is provided with internal threads. The first connecting pipe 100 has an internal channel for medium flow, which extends along the radial direction of the first connecting pipe 100 and penetrates the first connecting pipe 100 . A first limiting platform 120 is provided on the inner wall of the first connecting pipe 100 . The inner wall of the first connecting pipe 100 refers to the internal channel wall surface of the first connecting pipe 100 . In this embodiment, the radial cross section of the connecting sleeve 110 is a regular hexagon to facilitate the rotation of the connecting sleeve 110 .

A first movable rod 130 is provided inside the first connecting pipe 100. The end of the first movable rod 130 is connected to a first pressure retaining plate 140. The front end of the first movable rod 130 is connected to a first docking plate 150. The first docking plate 150 is provided with a Several through holes. The first pressure retaining plate 140 can abut the first limiting platform 120 and seal the inside of the first connecting pipe 100. The first movable rod 130 is covered with a first elastic element 160, and one end of the first elastic element 160 is connected to On the first docking plate 150, the other end of the first elastic element 160 is connected to the front end of the first connecting tube 100.

A sealing ring 170 is provided at the front edge of the first connecting pipe 100 , and the sealing ring 170 is located in the connecting sleeve 110 . When the first connecting pipe 100 and the second connecting pipe 200 are completely tightened, the front end of the second connecting pipe 200 abuts the sealing ring 170 .

It is worth mentioning that the front end of the first movable rod 130 refers to the end close to the front end of the first connecting pipe 100, and the end of the first movable rod 130 refers to the end close to the rear end of the first connecting pipe 100. In this embodiment, the first elastic element 160 is a spring.

In addition, the front end of the second connecting pipe 200 is provided with an external thread 210 that can cooperate with the connecting sleeve 110 . The first connecting pipe 100 and the second connecting pipe 200 are connected to each other through the connecting sleeve 110 and the external thread 210 . The second connecting pipe 200 has an internal channel for medium flow, which extends along the radial direction of the second connecting pipe 200 and penetrates the second connecting pipe 200 . A second limiting platform 220 is provided on the inner wall of the second connecting pipe 200 . The inner wall of the second connecting pipe 200 refers to the internal channel wall surface of the second connecting pipe 200 .

A second movable rod 230 is provided inside the second connecting pipe 200. The end of the second movable rod 230 is connected to a second pressure retaining plate 240. The front end of the second movable rod 230 is connected to a second docking plate 250. The second docking plate 250 has a plurality of openings. through hole. The second pressure retaining plate 240 can abut against the second limiting platform 220 and seal the inside of the second connecting pipe 200. A second elastic element 260 is set on the second movable rod 230, and one end of the second elastic element 260 abuts against the second limiting platform 220. On the second docking plate 250, the other end of the second elastic element 260 presses against the second limiting platform 220. A rotating part 270 is provided on the peripheral side of the middle part of the second connecting pipe 200. The radial cross section of the rotating part 270 is a regular hexagon to facilitate rotation.

It is worth mentioning that the front end of the second movable rod 230 refers to the end close to the front end of the second connecting pipe 200, and the end of the second movable rod 230 refers to the end close to the rear end of the second connecting pipe 200. In this embodiment, the second elastic element 260 is a spring.

A first pipe sleeve 180 is screwed around the end of the first connecting pipe 100 . A second pipe sleeve 280 is screwed around the end of the second connecting pipe 200 .

When the first connecting pipe 100 and the second connecting pipe 200 are connected through the connecting sleeve 110 and the external thread 210 , the first butt plate 150 and the second butt plate 250 push against each other so that the first elastic element 160 and the second elastic element 260 They are continuously compressed respectively, thereby causing the first pressure retaining plate 140 to separate from the first limiting platform 120 and the second pressure retaining plate 240 to separate from the second limiting platform 220. Finally, the first connecting pipe 100 and the second connecting pipe 200 are connected to each other.

When the first connecting pipe 100 and the second connecting pipe 200 are separated, the first connecting plate 150 and the second connecting plate 250 are reset respectively, so that the first pressure maintaining plate 140 is pressed against the first limiting platform 120, and the second pressure maintaining plate 140 is pressed against the first limiting platform 120. 240 is pressed against the second limiting platform 220, and the pressure of the corresponding pipelines of the first connecting pipe 100 and the second connecting pipe 200 is maintained.

The bidirectional pressure-maintaining pipeline connection structure in this embodiment has the following beneficial effects. When it is disassembled, since the first connecting pipe 100 and the second connecting pipe 200 are effectively blocked respectively, it can prevent the leakage of refrigerant from the pipelines at both ends. In the connected state, it is ensured that the first connecting pipe 100 and the second connecting pipe 200 are connected.

Therefore, when refrigeration equipment manufacturers deliver goods to users, they no longer need to arrange for a professional installation engineer to come to the user's site to install various components and then fill the refrigerant. Before the equipment leaves the factory, the manufacturer only needs to simply connect the components of the refrigeration equipment, fill it with refrigerant, and then disassemble and package it before shipping. After receiving the equipment, users do not need professionals to assist in installation. They only need to reconnect the two-way pressure-maintaining pipeline connection structure before use. The invention is simple to operate, greatly improves efficiency, and reduces costs for both parties.

The above embodiments further illustrate the above content of the present invention, but this should not be understood to mean that the scope of the above subject matter of the present invention is limited to the above embodiments. All technologies implemented based on the above content belong to the scope of the present invention.

Claims (6)

1. The utility model provides a two-way pressurize pipeline connection structure which characterized in that includes

The connecting sleeve is sleeved on the periphery of the front end of the first connecting pipe, the connecting sleeve is provided with an internal thread, a first limiting table is arranged on the inner wall of the first connecting pipe, a first movable rod is arranged in the first connecting pipe, the tail end of the first movable rod is connected with a first pressure-retaining plate, the front end of the first movable rod is connected with a first abutting plate, a plurality of through holes are formed in the first abutting plate, the first pressure-retaining plate can abut against the first limiting table and plug the interior of the first connecting pipe, a first elastic element is sleeved on the first movable rod, one end of the first elastic element is connected to the first abutting plate, and the other end of the first elastic element is connected to the front end of the first connecting pipe; and

the second connecting pipe, second connecting pipe front end week side be provided with can with adapter sleeve complex external screw thread, second connecting pipe inner wall is provided with the spacing platform of second, the inside second movable rod that is provided with of second connecting pipe, second movable rod end-to-end connection has the second guarantee board, second movable rod front end is connected with the second butt joint board, a plurality of through-holes have been seted up on the second butt joint board, the second guarantee board can support and be in on the spacing bench of second and will the inside shutoff of second connecting pipe, the cover is equipped with second elastic element on the second movable rod, second elastic element one end is connected on the second butt joint board, the second elastic element other end is connected on the spacing bench of second.

2. The connection structure of a two-way pressure maintaining pipeline according to claim 1, wherein the radial section of the connecting sleeve is regular hexagon.

3. The connection structure of the two-way pressure maintaining pipeline according to claim 1, wherein a rotating part is arranged on the periphery of the middle part of the second connecting pipe, and the radial section of the rotating part is regular hexagon.

4. The connection structure of a two-way pressure maintaining pipeline according to claim 1, wherein a sealing ring is arranged at the front end edge of the first connecting pipe, and the sealing ring is positioned in the connecting sleeve.

5. The connection structure of a two-way pressure maintaining pipeline according to claim 1, wherein a first pipeline sleeve is screwed on the peripheral side of the tail end of the first connecting pipe.

6. The connection structure of the two-way pressure maintaining pipeline according to claim 1, wherein the second pipeline sleeve is screwed on the peripheral side of the tail end of the second connecting pipe.