CN217272638U

CN217272638U - Pipeline rotary joint and transmission device

Info

Publication number: CN217272638U
Application number: CN202220360940.1U
Authority: CN
Inventors: 王翠玲; 董晓武; 洪丰都; 童绍炜; 陈宇博; 黄开旭
Original assignee: Xiamen Jinbohui Technology Co ltd
Current assignee: Xiamen Jinbohui Technology Co ltd
Priority date: 2021-11-24
Filing date: 2022-02-22
Publication date: 2022-08-23
Anticipated expiration: 2032-02-22
Also published as: WO2023093263A1; CN217472349U; CN114699291A; CN114645959A; CN217472353U; CN217409269U; CN217409261U; CN114587955B; CN217502706U; CN217472350U; WO2023093264A1; CN217489219U; CN114587955A; CN114699291B; CN114645959B

Abstract

The utility model provides a pipeline rotary joint and transmission relates to gas circuit connecting piece field technical field. Wherein the pipe swivel comprises: the rotary joint, dispose in the second bearing of rotary joint, dispose in the fixing base of second bearing, dispose in the fixed joint of fixing base, dispose the first sealing member between rotary joint and fixing base, and dispose in the second sealing member between fixing base and fixed joint. The rotary joint and the fixed joint are both hollow structures so as to form a through air passage. Through cup jointing the fixed joint seal on the fixing base, with the fixing base seal cup joint on rotating the joint to and set up the second bearing between fixing base and rotating the joint. Through double-deck sealed cover to and the second bearing for this pipeline rotary joint can use and keep longer life-span under the environment of long-term vibrations.

Description

Pipeline rotary joint and transmission device

Technical Field

The utility model relates to a gas circuit connecting piece field particularly, relates to a pipeline rotary joint and transmission.

Background

With the improvement of living standards and the development of automobile technology, the requirement of people on the comfort of automobile seats is higher and higher, and the automobile seats are developed from a simple part to a part which is more complex and has higher requirement on accuracy. The function of the car seat is gradually extended, and the car seat is not only limited to providing a good driving and sitting posture. At present, most of seats of automobiles have the defect of single function, and are easy to generate fatigue feeling when being driven and taken for a long time. Therefore, new car seats with massage function have been developed in the prior art.

The massage device in the massage chair drives the massage component to rotate through the driving component to massage the human body. In order to control the volume of the automobile seat and ensure the safety of the massage device when the automobile collides, the utility model discloses the people has set up the gasbag between drive assembly and massage assembly, drives the massage assembly through the gasbag and switches between the storage position and the massage position to transmit the moment of torsion through the gasbag. However, in the prior art, the air path rotary joint is designed for large-scale equipment, has a large volume and is not suitable for a massage device of a small-volume automobile seat. Moreover, the rotary air path joint in the prior art is not suitable for being used in a working environment with long-term vibration.

In view of the above, the applicant has specifically proposed the present application after studying the existing technology.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pipeline rotary joint and transmission aims at improving above-mentioned technical problem.

The first aspect,

In order to solve the technical problem, the utility model provides a pipeline rotary joint, it contains: the rotary joint, dispose in the second bearing of rotary joint, dispose in the fixing base of second bearing, dispose in the fixed joint of fixing base, dispose the first sealing member between rotary joint and fixing base, and dispose in the second sealing member between fixing base and fixed joint. The rotary joint and the fixed joint are both of hollow structures so as to form a through air passage.

In an alternative embodiment, the fixed joint is provided with a first inlet end and a first outlet end. The first air outlet end is configured on the fixed seat. The first air inlet end is used for connecting an air pipe. The included angle A between the first air inlet end and the first air outlet end is 170-90 degrees. The projection of the first air inlet end along the axial direction of the first air outlet end is positioned in the outline of the first air outlet end.

In an alternative embodiment, the included angle A is 90 degrees.

In an alternative embodiment, the pipeline swivel further comprises a fixed bracket sleeved on the swivel. One side of the fixing seat far away from the second bearing is provided with a first limiting groove. The first sealing element and the fixing support are embedded into the first limiting groove, so that the fixing seat is rotatably sleeved on the rotating joint.

In an optional embodiment, the pipeline rotary joint further comprises a buffer gasket sleeved on the rotary joint, and the buffer gasket is located on one side, facing the second bearing, of the first sealing element and is used for abutting against the first limiting groove.

In an optional embodiment, a second limiting groove is further formed in one side, away from the second bearing, of the fixing seat. The inner periphery of the fixed support extends inwards to form a first abutting bulge for abutting against the rotary joint. The outer periphery of the fixed support extends outwards to form a second abutting protrusion matched with the first limiting groove.

In an alternative embodiment, the second bearing is retained to the rotary joint by a retaining ring. The limiting ring is a snap spring for the shaft.

The fixing seat is configured on the fixing joint through a buckle structure.

In an alternative embodiment, the swivel is provided with a flat position for gripping by an external object, and a thread for connecting to an external object.

In an alternative embodiment, the first outlet end has a tubular geometry. The first air inlet end is constructed into an L-shaped hollow tubular structure and is connected to the position, close to the periphery, of the first air inlet end.

The second aspect,

The utility model provides a transmission, it contains first flexible seat, first extensible member and as the arbitrary one section pipeline rotary joint of saying of first aspect. The first expansion piece is an air bag and is arranged on the first expansion seat. The pipeline rotary joint is arranged on the first telescopic seat or the first telescopic piece, and the air path is communicated with the first telescopic piece.

By adopting the above technical scheme, the utility model discloses can gain following technological effect:

the utility model discloses a pipeline rotary joint through with the sealed cup joint of fixed joint on the fixing base, with the fixing base seal cover connect on rotating the joint to and set up the second bearing between fixing base and rotating joint. Through double-deck sealed cover to and the second bearing, make this pipeline rotary joint can use and keep longer life under the environment of long-term vibrations.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a half-sectional view of a pipeline swivel.

Fig. 2 is an exploded view of the transmission.

The labels in the figure are: 20-a first telescopic piece, 21-a first telescopic seat, 22-a pipeline rotary joint, 36-a rotary joint, 37-a second bearing, 38-a fixed seat, 39-a limiting ring, 40-a buffer gasket, 41-a first sealing element, 42-a second sealing element, 43-a fixed support, 44-a fixed joint, 45-a first limiting groove, 46-a first air outlet end, 47-a second limiting groove and 49-a first air inlet end.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, as 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

the first embodiment,

As shown in fig. 1, an embodiment of the present invention provides a pipe swivel 22, which includes: the rotary joint 36, the second bearing 37 disposed on the rotary joint 36, the fixed seat 38 disposed on the second bearing 37, the fixed joint 44 disposed on the fixed seat 38, the first seal 41 disposed between the rotary joint 36 and the fixed seat 38, and the second seal 42 disposed between the fixed seat 38 and the fixed joint 44. The rotary joint 36 and the fixed joint 44 are both hollow structures to form a through air passage. Specifically, the second bearing 37 is retained to the rotary joint 36 by a retainer ring 39. The limiting ring 39 is a snap spring for the shaft.

The utility model discloses a pipeline rotary joint 22 seals through sealing fixed joint 44 and cup joints on fixing base 38, seals the fixing base 38 and cup joints on rotary joint 36 to and set up second bearing 37 between fixing base 38 and rotary joint 36. The pipeline rotary joint 22 can be used in a long-term vibration environment and has a long service life through the double-layer sealing sleeve and the second bearing 37.

As shown in fig. 1, on the basis of the above embodiment, in an alternative embodiment of the present invention, the fixed joint 44 is provided with a first air inlet end 49 and a first air outlet end 46. The first air outlet 46 is disposed on the fixing base 38. The first inlet end 49 is used for connecting an air pipe. The angle a between the first inlet end 49 and the first outlet end 46 is 170 ° to 90 °. The projection of the first inlet end 49 along the axial direction of the first outlet end 46 is located within the contour of the first outlet end 46. Preferably, the included angle a is 90 degrees.

It will be appreciated that in some particular scenarios, there is limited space along the axis of the revolute joint 36. In order to utilize the limited space, in the embodiment, the air inlet is arranged in a structure perpendicular to the air outlet, so that the pipeline rotary joint 22 is greatly saved, and the size in the length direction is more suitable for the use scene of a small space.

It should be noted that, in some usage scenarios, for more convenient installation, the pipeline rotary joint 22 needs to pass through a predetermined through hole wholly or partially, so as to complete connection of the air passage. To facilitate the installation of the pipeline swivel 22, the suitability of the pipeline swivel 22 is improved. The present embodiment arranges the structure of the entire pipe swivel 22 inside one virtual cylinder. The virtual cylinder is bounded by the outer diameter of the first outlet end 46.

Specifically, the structure of the entire pipeline rotary joint 22 is controlled in a cylinder, and during installation, the pipeline rotary joint 22 is firstly installed on the part a, then the part a is installed on the part B, and meanwhile, the pipeline rotary joint 22 on the part a passes through the through hole of the part B to complete installation. The fitting of the pipe rotary joint 22 to the a-part first, rather than the fitting of the a-part after the a-part is joined to the B-part, ensures airtightness between the pipe rotary joint 22 and the a-part, preventing gas leakage. In addition, possible interference in the assembling process can be effectively avoided; and, the volume of the line swivel 22 is greatly reduced.

As shown in fig. 1, in an alternative embodiment of the present invention, based on the above embodiment, the first gas outlet end 46 has a tubular geometry. The first air intake end 49 is configured in an L-shaped hollow tubular structure, and is connected to the first air intake end 49 near the periphery. Specifically, the first outlet end 46 is disposed on the rotary joint 36 in a cylindrical structure. The first inlet end 49 is disposed on the first outlet end 46 in an L-shaped geometry, and the first inlet end 49 is not joined to the axis of the first outlet end 46, but is disposed off-axis, so that the projection of the first inlet end 49 on the first outlet end 46 can completely fall within the peripheral range of the first outlet end 46 without exceeding the diameter of the first outlet end 46.

As shown in fig. 1, on the basis of the above embodiment, in an alternative embodiment of the present invention, a second limiting groove 47 is further disposed on one side of the fixing seat 38 away from the second bearing 37. The inner periphery of the fixed bracket 43 extends inward with a first abutting projection for abutting against the rotary joint 36. The outer periphery of the fixing bracket 43 extends outward to form a second abutting protrusion adapted to the first limiting groove 45. Specifically, the fixing base 38 is disposed on the fixing joint 44 through a snap structure.

In this embodiment, the second positioning groove is disposed on the fixed joint 44, and the second positioning protrusion is disposed on the fixed seat 38. The fixed seat 38 can increase the diameter of the rotary joint 36, so that it can be rotatably installed on the first air outlet of the first air outlet end 46. The rotary joint 36 is kept small in diameter by the fixing base 38, and large vibration during rotation is avoided. And, the fixed seat 38 enables the rotary joint 36 to be directly fixed on the fixed joint 44 through a snap structure, thereby greatly reducing the volume of the connecting structure between the fixed joint 44 and the movable joint.

As shown in fig. 1, in an alternative embodiment of the present invention, based on the above embodiment, the pipeline swivel joint 22 further includes a fixing bracket 43 sleeved on the swivel joint 36. One side of the fixing seat 38 away from the second bearing 37 is provided with a first limiting groove 45. The first sealing element 41 and the fixing bracket 43 are inserted into the first limiting groove 45, so that the fixing seat 38 is rotatably sleeved on the rotating joint 36. The pipeline rotary joint 22 further includes a buffer gasket 40 sleeved on the rotary joint 36, and the buffer gasket 40 is located on a side of the first sealing member 41 facing the second bearing 37 and configured to abut against the first limiting groove 45. Specifically, the first seal 41 and the second seal 42 realize a rotary seal. The fixing bracket 43 and the cushion pad 40 achieve secondary stability.

Preferably, the first seal 41 is a sealing gasket and the second seal 42 is an O-ring seal. The rotary joint 36 is provided with a screw structure for connection with an external device, and a flat portion for holding an external object is provided at an outer portion of the rotary joint 36 so as to rotate or fix the rotary joint when mounting.

Example II,

As shown in fig. 2, the embodiment of the present invention provides a transmission device, which comprises a first telescopic base 21, a first telescopic member 20 and a pipeline rotary joint 22 as described in any section of the first aspect. The first expansion piece 20 is an airbag and is disposed on the first expansion seat 21. The pipeline rotary joint 22 is disposed on the first telescopic base 21 or the first telescopic member 20, and the air path is communicated with the first telescopic member 20.

Specifically, the first telescopic seat 21 is fixed on the airbag, so that the airbag can be conveniently installed in external equipment. A pipe swivel 22 is attached to the first telescopic bracket 21 to enhance its integrity. The utility model discloses a transmission except that the gasbag can stretch out and draw back, still is applicable to, through the rotatory working condition who transmits the moment of torsion of gasbag, has improved the suitable scene of gasbag greatly, has fine actual meaning.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipe swivel joint, comprising: a rotary joint (36), a second bearing (37) arranged on the rotary joint (36), a fixed seat (38) arranged on the second bearing (37), a fixed joint (44) arranged on the fixed seat (38), a first sealing element (41) arranged between the rotary joint (36) and the fixed seat (38), and a second sealing element (42) arranged between the fixed seat (38) and the fixed joint (44); the rotating joint (36) and the fixed joint (44) are both hollow structures so as to form a through air passing passage.

2. A pipe swivel joint according to claim 1, wherein the fixed joint (44) is provided with a first inlet end (49) and a first outlet end (46); the first air outlet end (46) is sleeved on the fixed seat (38); the first air inlet end (49) is used for connecting an air pipe; the included angle A between the first air inlet end (49) and the first air outlet end (46) is 170-90 degrees; the projection of the first air inlet end (49) along the axial direction of the first air outlet end (46) is positioned in the outline of the first air outlet end (46).

3. A pipeline swivel joint as claimed in claim 2, wherein the included angle a is 90 degrees.

4. The pipe swivel according to claim 1, further comprising a fixed bracket (43) nested in the swivel (36); a first limiting groove (45) is formed in one side, away from the second bearing (37), of the fixing seat (38); the first sealing element (41) and the fixing bracket (43) are embedded into the first limiting groove (45), so that the fixing seat (38) can be rotatably sleeved on the rotating joint (36).

5. A pipe swivel according to claim 4, characterized in that the pipe swivel further comprises a cushion (40) sleeved on the swivel joint (36), the cushion (40) being located on a side of the first sealing member (41) facing the second bearing (37) for abutting against the first limiting groove (45).

6. A pipe swivel joint according to claim 4, characterized in that a second limiting groove (47) is further provided on a side of the fixing seat (38) remote from the second bearing (37); the inner periphery of the fixed bracket (43) extends inwards to form a first abutting bulge for abutting against the rotating joint (36); the outer periphery of the fixing support (43) extends outwards to form a second abutting protrusion matched with the first limiting groove (45).

7. A pipe swivel joint according to claim 1, wherein the second bearing (37) is retained to the swivel joint (36) by a retaining ring (39); the limiting ring (39) is a clamp spring for a shaft;

the fixed seat (38) is configured on the fixed joint (44) through a buckling structure.

8. A pipe swivel according to claim 1, characterized in that the swivel (36) is provided with a flat seat for gripping by an external object and a thread for connection to an external object.

9. A pipe swivel joint according to claim 2, wherein the first outlet end (46) is of tubular geometry; the first air inlet end (49) is constructed into an L-shaped hollow tubular structure and is connected to the position, close to the periphery, of the first air inlet end (49).

10. A transmission device, characterized by comprising a first telescopic seat (21), a first telescopic member (20) and a conduit swivel (22) according to any one of claims 1 to 9; the first expansion piece (20) is an air bag and is arranged on the first expansion seat (21); the pipeline rotary joint (22) is configured on the first telescopic seat (21) or the first telescopic piece (20), and the air path is communicated with the first telescopic piece (20).