CN218818893U - Plugging head, pipeline structure and air conditioning device - Google Patents

Abstract

The utility model relates to a shutoff head, pipeline structure and air conditioning equipment. Wherein, the plugging head comprises a body and a movable body; the body is used for being arranged on the pipeline structure and is provided with a vent hole; the movable body is connected to the inner side of the body, and the inner side of the body is the side, which is positioned in the pipeline structure when the body is arranged on the pipeline structure; the connection of the movable body to the body is configured to: the movable body can be locally separated from the body under the action of force from the outer side of the body so as to form an airflow channel inside and outside the communicating pipeline structure; and, under the action of the force from within the conduit structure, the movable body can be attached to the body and seal the vent hole. When nitrogen is injected into the pipeline structure, the blocking head can locally separate the movable body from the body, and an airflow channel is formed inside and outside the pipeline structure, so that the nitrogen can be conveniently injected into the pipeline structure; and after the nitrogen gas is injected, the movable body can be tightly attached to the body to form a sealing state, and the sealing state can be continuously maintained.

Description

Plugging head, pipeline structure and air conditioning device

Technical Field

The utility model relates to a technical field of the pipe seal especially relates to a shutoff head, pipeline structure and air conditioning equipment.

Background

And the module machine pipe side (water side) of the water system air conditioner needs to be sealed after nitrogen filling, so that the cleanliness of the system is ensured. However, the rubber plugs adopted at present cannot realize direct vacuum pumping and nitrogen filling, and generally, the pipeline is firstly vacuumized, then a nitrogen filling joint is installed to fill nitrogen into the pipeline, and after the nitrogen filling is finished, the end side of the pipeline is fastened and sealed by using the plugs, the sealing plates, the bolts, the nuts and other structures.

The technical problems of the scheme in practical use are as follows:

first, before and after the evacuation and the nitrogen filling are completed, it is necessary to switch the joints and plugs connected to the end sides of the pipes, and at this time, the pipes are communicated with the outside, so that there are problems that external air flows into the pipes (after the evacuation), and nitrogen gas flushed into the pipes flows out.

Secondly, in the process of sealing the end side of the pipeline, the joint and the plug are switched for many times, so that the assembly process is complicated, and the efficiency is low.

Thirdly, the end side of the pipeline is sealed by a plurality of parts, including plugs, sealing plates, bolts, nuts and other structures, which are high in cost, and the structures are removed and discarded after being delivered to a user, which causes a great waste of resources.

SUMMERY OF THE UTILITY MODEL

The utility model provides a shutoff head, pipeline structure and air conditioning equipment to need switch multiple joint, probably appear gaseous injection to the vacuum pipe in and cause at least one among the abandonment class of technical problem of more part among the sealed time of pipeline structure shutoff among the solution above-mentioned prior art.

The utility model provides a plugging head, which is used for sealing one end of a pipeline structure and comprises a body and a movable body; the body is used for being mounted on the pipeline structure, and a vent hole is formed in the body; the movable body is connected to the inner side of the body, and the inner side of the body is the side of the body which is positioned in the pipeline structure when the body is installed on the pipeline structure; the connection of the movable body to the body is configured to: the movable body can be locally separated from the body under the action of force from the outer side of the body so as to form an airflow channel communicated with the inside and the outside of the pipeline structure; and the movable body can be attached to the body and seal the vent hole under the action of force from the inside of the pipeline structure.

Wherein the movable body is a membrane.

A plurality of connecting points are arranged between the movable body and the body, and are arranged at intervals along the circumferential direction of the connection between the movable body and the body; or one or more connecting areas are arranged between the movable body and the body.

The movable body and the body are bonded at the connecting point position or the connecting area, or integrally formed, or fastened and connected through a connecting piece.

The body is provided with a flange, the flange protrudes towards the inner side direction of the body, and the flange is used for being inserted into the pipeline structure; the flange is for interference fit with the pipe structure.

The body is provided with a flange, the flange protrudes towards the inner side direction of the body, and the flange is used for being inserted into the pipeline structure; and the flange is provided with a protruding rib.

Wherein, the rib is the annular that encircles a week along the periphery of flange.

Wherein, the quantity of rib is a plurality of.

The outer side wall of the rib inclines towards the outer side direction of the body along the protruding direction of the rib.

The inner side wall of each rib inclines towards the outer side direction of the body along the protruding direction of the rib.

The utility model provides a pipeline structure, it includes foretell shutoff head.

The utility model provides an air conditioning device, it includes foretell pipeline structure.

The utility model provides an above-mentioned shutoff head, pipeline structure and air conditioning equipment compare with prior art and have following advantage:

the utility model provides a shutoff head, it has body and activity body, and the activity body coupling is in the inboard of body, but and between activity body and the body partial segregation in order to form airflow channel to and the activity body can be hugged closely on the body, and is sealed with the air vent that sets up on the body. When injecting nitrogen gas into the pipeline structure like this, through using modes such as the head of aerifing inserts in the venthole with activity body and body local separation, can form airflow channel inside and outside the pipeline structure to just can inject nitrogen gas into the pipeline structure through this airflow channel. After the nitrogen is injected, the air pressure in the pipeline structure is larger than the air pressure outside the pipeline structure, the pressure difference between the inside and the outside of the pipeline structure acts on the movable body, so that the movable body is tightly attached to the body, and in the state, the movable body plugs the vent hole in the body to form a sealing state which can be continuously maintained.

The utility model discloses a pipeline structure, it includes foretell shutoff head, has the beneficial effect unanimous with above-mentioned shutoff head certainly, no longer gives unnecessary details.

The utility model discloses an air conditioning device, it includes foretell pipeline structure, has the beneficial effect unanimous with foretell pipeline structure certainly, no longer gives unnecessary details.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural view of a plugging head in an embodiment of the present invention;

FIG. 2 is a schematic top view of the stopper of FIG. 1;

FIG. 3 is a side view of the plugging head of FIG. 1;

FIG. 4 is an enlarged view of portion A of FIG. 1;

FIG. 5 is a schematic view of the plugging head of FIG. 1 mounted to a tubular structure;

fig. 6 is a schematic view of the assembly of the plugging head and the pipe structure shown in fig. 1 (the plugging head and the pipe structure are in a misaligned state to be clearly shown, respectively).

In the figure:

11-a body; 12-a movable body; 20-a pipe structure;

110-a vent; 111-a flange; 112-ribs; 112 a-an outer sidewall; 112 b-inner side wall.

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.

The following describes embodiments of the plugging head, the pipe structure and the air conditioning apparatus according to the present invention with reference to the drawings.

In an embodiment of the invention, the blocking head is used for sealing one end of the pipe structure. As shown in fig. 1 to 4, the stopper 10 includes a body 11 and a movable body 12. Wherein, the body 11 is used for being installed on the pipeline structure 20, and the body 11 is provided with a vent 110. The body 11 has an inner side and an outer side, and the vent hole 110 penetrates the body 11 between the inner side and the outer side of the body 11. The inner side of the body 11 refers to the side of the body 11 located inside the duct structure 20 when the body 11 is mounted on the duct structure, and correspondingly, the side of the body 11 located outside the duct structure 20 when the body 11 is mounted on the duct structure 20 is the outer side of the body 11, and taking fig. 3 as an example, the left side in the figure is the inner side of the body 11, and the right side is the outer side of the body.

The movable body 12 is connected inside the body 11, and the connection of the movable body 12 to the body 11 is configured to: the movable body 12 can be partially separated from the body 11 by a force from the outside of the body 11 to form an air flow passage inside and outside the communication duct structure 20; and, under the force from the inside of the duct structure 20, the movable body 12 can be attached to the main body 11 and seal the vent hole 110.

In this embodiment, the movable body 12 may be a membrane, which may be made of plastic, rubber, or the like, and may have a certain flexible deformation capability. The connection between the movable body 12 and the main body 11 will be specifically described below by taking a diaphragm as an example.

A plurality of connection points may be provided between the diaphragm as the movable body 12 and the body, and the plurality of connection points are provided at intervals along the circumferential direction where the movable body 12 and the body 11 meet. For example, the diaphragm as the movable body 12 may have a circular shape, a rectangular shape, a triangular shape, or the like, and in this case, the circumferential direction of contact between the diaphragm and the body 11 is a circular shape, a rectangular shape, a triangular shape, or the like; a plurality of connection points between the membrane and the body 11 are arranged at intervals along the circle, rectangle, triangle, etc.

Specifically, taking the shape of the diaphragm as a circle as an example, three connection points are provided between the diaphragm and the body 11, and the three connection points may be uniformly spaced in the axial direction of the diaphragm. Referring to fig. 5 and 6, for example, when nitrogen gas is injected into the duct structure, an inflation head is inserted into the vent hole 110 to push open the non-connection point region of the membrane, or gas injected into the duct structure through the vent hole 110 pushes open the non-connection point region of the membrane, so that an external force (i.e., a force from the outside of the body 11) from outside the duct structure passes through the vent hole 110 and acts on the membrane, and a gas flow path is formed inside and outside the duct structure, so that nitrogen gas can be injected into the duct structure through the gas flow path. After the injection of nitrogen gas is completed, the air pressure inside the pipe structure is greater than the air pressure outside the pipe structure, and the pressure difference between the inside and the outside of the pipe structure acts on the diaphragm, so that the non-connection point region of the diaphragm is attached to the body 11, and in this state, the diaphragm serving as the movable body 12 blocks the vent hole 110 in the body 11, and a sealed state is formed, and this sealed state can be continuously maintained.

Alternatively, a plurality of connection regions are provided between the diaphragm as the movable body 12 and the body 11. Compared with the connection point, the area of the connection region is larger, and in this case, the connection between the diaphragm and the body 11 can be more stable. The area of the single connection region is large enough to satisfy the condition that the diaphragm and the body 11 are not separated and not dislocated when nitrogen gas is injected into the pipe structure, and only one connection region may be provided between the diaphragm serving as the movable body 12 and the body 11.

Under the above structure, the movable body 12 and the body 11 may be bonded at the connection point or the connection region, or may be integrally formed at the connection point or the connection region, or may be fastened and connected between the movable body 12 and the body 11 by a connector disposed at the connection point or the connection region.

The connection between the movable body 12 and the main body 11 has been described above by taking a diaphragm having a certain flexible deformability as an example, but it is emphasized that it is not essential for the movable body 12 to change the connection state with the main body 11 by its own deformation; besides the membrane with certain flexible deformation capability, the movable body 12 can also be made of rigid material, that is, when the connection state between the movable body 12 and the main body 11 changes, the movable body 12 itself does not deform. In this case, the connecting structure between the movable body 12 and the main body 11 may be any structure that satisfies the above-described requirements for the arrangement of both.

For example, two or more sliding rods may be disposed between the movable body 12 and the main body 11, the sliding rods may be disposed at intervals along a circumferential direction where the movable body 12 and the main body 11 are connected, a first end of the sliding rod is connected to the main body 11, and a second end of the sliding rod is provided with a stopper (the stopper may be represented as a protruding cap, for example); the movable body is sleeved between the first ends and the second ends of the plurality of sliding rods and can slide between the first ends and the second ends of the sliding rods, and the limiting part arranged at the second end can prevent the movable body 12 from sliding out of the second end of the sliding rod. When nitrogen is injected into the pipeline structure from the outside of the pipeline structure, for example, an inflation head is inserted into the vent hole 110 and pushes the movable body 12 open, or the movable body 12 is pushed open by gas injected into the pipeline structure through the vent hole 110, so that an acting force from the outside of the pipeline structure (i.e., a force from the outside of the body 11) passes through the vent hole 110 and acts on the movable body 12, the movable body 12 moves towards the second end of the sliding rod, and can move to the second end of the sliding rod or a position between the first end and the second end according to needs and practical conditions. And after the completion is poured into the nitrogen gas in the pipeline structure, the pressure of the nitrogen gas in the pipeline structure is greater than the atmospheric pressure outside the pipeline structure, and this pressure differential can act on movable body 12, promotes movable body 12 and removes to the first end direction of slide bar to laminate mutually with body 11, just the vent hole 110 is stopped up by movable body 12 and is realized encapsulated situation after the laminating, and this encapsulated situation is sustainable.

In the above embodiment, for the movable body 12 made of a rigid material, an elastic sealing portion may be disposed on a side of the movable body 12 facing the main body 11, and when the movable body 12 is attached to the main body 11, the elastic sealing portion located between the movable body 12 and the main body 11 can achieve better sealing of the vent hole 110 through elastic deformation, so as to prevent air leakage at the vent hole 110.

In one embodiment of the plugging head, the body 11 has a flange 111, the flange 111 protrudes towards the inside of the body 11, and the flange 111 is adapted to be inserted into the pipe structure. The flange 111 is provided with projecting ribs 112. This protruding rib 112 can form interference fit when inserting pipeline structure between with pipeline structure's the inner wall, perhaps, when being provided with the recess that corresponds with rib 112 on pipeline structure's the inner wall, this rib 112 can correspond the block with the recess that sets up on pipeline structure's the inner wall, forms unsmooth cooperation structure.

In this embodiment, no matter the interference fit is formed between the ribs 112 and the pipeline structure, or the concave-convex fit is formed, the following two functions can be achieved, one is that the connection stability between the body 11 and the pipeline structure can be increased, and the body 11 is prevented from protruding from the pipeline structure; secondly, the tightness between the body 11 and the pipe structure can be increased.

Specifically, the rib 112 may be annular around the outer periphery of the flange 111. It will be appreciated that the annular bead 112 helps to achieve better sealing performance. Meanwhile, the number of the ribs 112 is multiple, the more the number of the ribs 112 is, the better the connection stability and the sealing performance between the body 11 and the pipeline structure are, especially under the condition that the ribs 112 are annular, the better the sealing performance between the body 11 and the pipeline structure is, and air leakage at the connection part between the body 11 and the inner diameter of the pipeline structure can be effectively avoided.

In one embodiment of the plugging head, as shown in fig. 4, the outer side wall 112a of the rib 112 (the direction of the inner and outer side walls of the rib is consistent with the inner and outer side orientations of the body 11) is inclined toward the outer side of the body 11 along the protruding direction of the rib 112, and the inner side wall 112b of the rib 112 may also be inclined toward the outer side of the body 11 along the protruding direction of the rib 112.

In this embodiment, based on the above structure, when the flange 111 of the body 11 is inserted into the inner diameter of the pipe structure, since the inner side wall 112b of the rib 112 protrudes rearward (in the moving process, the rear is the outside direction of the body 11, which is opposite to the moving direction of the body 11), it is convenient to insert the flange 111 into the pipe structure. And after the flange 111 is inserted into the pipe structure, since the outer side wall 112a of the rib 112 is inclined toward the outside of the body 11, the interaction between the rib 112 and the inner wall of the pipe structure may prevent the body 11 from being removed from the pipe structure toward the outside.

In another embodiment of the plugging head, the outer sidewall 112a and the inner sidewall 112b of the rib 112 in the above embodiments may be provided separately with corresponding inclinations. Correspondingly, it is possible to achieve the technical effect that can be obtained with an outer side wall 112a of the rib 112 having a corresponding inclined shape, but not with an inner side wall 112b of the rib 112 having a corresponding inclined shape; or vice versa.

In the above-described embodiment, the connection and sealing between the body 11 and the pipe structure are achieved by forming the rib 112 provided on the flange 111 of the body 11 and the pipe structure in an interference fit or a male-female fit structure. Alternatively, in another embodiment of the stopper head, the diameter of the flange 111 may be greater than the internal diameter of the tubular structure as a whole, thereby providing an interference fit between the flange 111 as a whole and the tubular structure when the tubular structure is plugged. With an interference fit, there will be a better sealing between the body 11 and the pipe structure.

To sum up, the utility model discloses the shutoff head that above-mentioned embodiment provided, it has body 11 and movable body 12, and movable body 12 is connected in the inboard of body 11, and but partial separation is in order to form airflow channel between movable body 12 and the body 11 to and movable body 12 can hug closely on body 11, and the air vent 110 with setting up on the body 11 is sealed. When injecting nitrogen gas into the pipeline structure like this, through using the mode such as the head of aerifing inserts in the air vent 110 with activity body 12 and body 11 local separation, can form airflow channel inside and outside the pipeline structure to just can inject nitrogen gas into the pipeline structure through this airflow channel. After the nitrogen gas is injected, the air pressure inside the pipe structure is greater than the air pressure outside the pipe structure, and the pressure difference between the inside and the outside of the pipe structure acts on the movable body to cause the movable body 12 to be closely attached to the main body 11, and in this state, the movable body 12 blocks the vent hole 110 in the main body 11 to form a sealed state, and the sealed state can be continuously maintained.

Compared with the prior art, in the scheme of the utility model, the pipeline structure is filled with nitrogen without connecting and switching a special nitrogen filling joint, so that the nitrogen filling and sealing processes of the pipeline structure are simpler; in addition, the problems that external air flows into the pipeline structure (after being vacuumized) and the like cannot occur in the process; and the number of parts used can be reduced, and more parts are prevented from being wasted.

In an embodiment of the pipe structure of the present invention, the pipe structure comprises a pipe body and the plugging heads described in the above embodiments, and the above plugging heads are inserted into one or more end sides of the pipe body and achieve sealing at the end sides.

The utility model discloses a pipeline structure, it includes pipeline body and foretell shutoff head, has the beneficial effect unanimous with above-mentioned shutoff head certainly, no longer gives unnecessary details.

In an embodiment of the present invention, the air conditioner includes the duct structure described in the above embodiment.

The utility model discloses an air conditioning device, it includes foretell pipeline structure, has the beneficial effect unanimous with foretell pipeline structure certainly, no longer gives unnecessary details.

It is noted that, in this document, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (12)

1. A blocking head is used for sealing one end of a pipeline structure and is characterized by comprising a body and a movable body;

the body is used for being mounted on the pipeline structure, and a vent hole is formed in the body;

the movable body is connected to the inner side of the body, and the inner side of the body is the side of the body which is positioned in the pipeline structure when the body is installed on the pipeline structure;

the connection of the movable body to the body is configured to: the movable body can be locally separated from the body under the action of force from the outer side of the body so as to form an airflow channel communicated with the inside and the outside of the pipeline structure; and under the action of force from the inside of the pipeline structure, the movable body can be attached to the body and seal the vent hole.

2. The plugging head according to claim 1, wherein the movable body is a diaphragm.

3. The plugging head according to claim 1, wherein a plurality of connection points are arranged between the movable body and the body, and the connection points are arranged at intervals along the circumferential direction of the movable body connected with the body; or

One or more connecting areas are arranged between the movable body and the body.

4. The plugging head according to claim 3, wherein the movable body and the body are bonded at the connection point or the connection area, or integrally formed, or fastened and connected through a connecting piece.

5. The plugging head according to claim 1, wherein the body has a flange projecting in a direction inward of the body, the flange being adapted to be inserted into the tubular structure; the flange is for interference fit with the pipe structure.

6. The plugging head according to claim 1, wherein the body has a flange projecting in a direction inward of the body, the flange being adapted to be inserted into the tubular structure;

the flanges are provided with protruding ribs.

7. The plugging head of claim 6, wherein said ribs are annular around the periphery of said flange.

8. The plugging head according to claim 6 or 7, wherein the number of the ribs is plural.

9. The plugging head according to claim 6, wherein the outer side wall of the rib is inclined in the direction of the protrusion of the rib toward the outer side of the body.

10. The plugging head according to claim 6, wherein the inner side wall of the rib is inclined to the outer side direction of the body along the protruding direction of the rib.

11. A pipe structure, characterized in that it comprises a stopper according to any one of claims 1 to 10.

12. An air conditioning apparatus, characterized in that it comprises a duct structure according to claim 11.

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