Joint assembly structure and elbow air nozzle

Abstract

The utility model relates to a joint assembly structure and elbow air nozzle, a joint assembly structure, including joint one department and joint two department, joint one department circumferential outside sets up fixed limit component, the limit component includes first limit piece and second limit piece, first limit piece one end has outer first limit department, inner first limit department, first limit piece other end has second limit department, first limit piece corresponds to the circumferential inside of second limit department and is equipped with annular cooperation groove, the one end of elastic fixing ring and second limit piece is located in annular cooperation groove, the inner edge of elastic fixing ring has a plurality of annular interval arrangement's elastic sheet, second limit piece other end with joint one department circumferential outer wall is opposite. The utility model realized the organic combination of quick assembly, free rotation and reliable sealing, especially applicable to the pipeline connection scene of limited space or needing frequently dismounting, uses very convenient.

Description

Technical Field

[0001] This utility model relates to a connector assembly structure and an elbow air nozzle. Background Technology

[0002] When making temporary pipeline connections or depressurizing, a connector or a depressurizing valve with a connector is usually used to connect the depressurizing pipe / connecting pipe to the connection point. If the space is small or there are other requirements, an L-shaped elbow is used for connection.

[0003] For example, the detachable endotracheal connector disclosed in Chinese Patent Application No. 202420515138.4 uses a first connecting plate at both ends of the connector and a second connecting plate on the end of the first and second tubes facing the connector. The connector, the first tube, and the second tube can be assembled by assembling the first and second connecting plates, facilitating the connection of the pressure relief tube / connecting tube and the connector to the connection point in confined spaces. However, the above solution has the following drawbacks: the two ends of the connector cannot rotate relative to each other, and adjustments are required to the structure of the connection point (first tube) and the end of the pressure relief tube / connecting tube (second tube). It can only be used for connections with structures adapted to the first and second connecting plates.

[0004] Chinese patent application number 202311475389.0 discloses a rotatable joint, including a first connecting pipe and a second connecting pipe. The second connecting pipe is sleeved inside the first connecting pipe, and the second connecting pipe is connected to the first connecting pipe in the radial direction of its inner cavity via a rolling mechanism as the contact medium. The rolling mechanism includes raceways for accommodating balls, allowing the second connecting pipe and the first connecting pipe to rotate freely 360 degrees relative to each other around their central axis. In this solution, the two connecting pipes can rotate relative to each other, and the first and second connecting pipes can be connected to the connection point and the pressure relief pipe / connecting pipe end using conventional fitting methods, such as using a plug-in method for connection and sealing. However, this solution suffers from drawbacks such as cumbersome assembly and difficulty in use in confined spaces. Utility Model Content

[0005] The purpose of this invention is to provide a connector assembly structure that is easy to assemble and use.

[0006] To achieve the above objectives, this utility model employs a joint assembly structure, comprising a joint part and a joint part nested together. A limiting component is fixedly fitted around the outer side of the joint part, and the limiting component is located between the joint part and the joint part. The limiting component includes a first limiting member and a second limiting member along the axial direction.

[0007] The first limiting member has an outer first limiting portion extending outward in a circumferential direction and an inner first limiting portion extending in a circumferential direction at one end away from the second limiting member. The other end of the first limiting member has a second limiting portion extending outward in a circumferential direction. The first limiting member is provided with an annular mating groove that penetrates one side of the axial direction on the circumferential inner side corresponding to the second limiting portion. One end of the elastic fixing ring and the second limiting member are located in the annular mating groove. The inner edge of the elastic fixing ring has a plurality of elastic pieces arranged in annular intervals and used to abut against the outer wall of the connector part. One end of the elastic piece is connected to the elastic fixing ring, and the other end of the elastic piece extends toward the opening of the annular mating groove and extends inward in a circumferential direction toward the annular mating groove.

[0008] One end of the second limiting member is tightly fitted into the annular mating groove, and the other end of the second limiting member abuts against the circumferential outer wall of the first part of the connector; the axial surface of the end of the second part of the connector contacts the axial surface of the outer first limiting part, the circumferential outer wall of the first part of the connector abuts against the circumferential inner wall of the inner first limiting part and the elastic sheet, and the circumferential inner wall of the second part of the connector is provided with a first limiting groove for cooperating with the second limiting part, and the second limiting part is located in the first limiting groove.

[0009] When pipe connections or valve body installation are required, the connection of connector part one and connector part two to the pipes and equipment can be performed separately first, and then connector part one and connector part two can be mated together; or connector part one and connector part two can be mated together first, and then connected to the pipes and equipment. When pressure relief is required, the pressure relief valve can be integrated into connector part one or connector part two. The ends of connector part one and connector part two can adopt any existing connector or valve body end structure.

[0010] This utility model achieves connection and fixation through limiting components. The second limiting part cooperates with the limiting groove of the second part of the connector to prevent axial separation. The elastic sheet of the elastic fixing ring is tightly attached to the outer wall of the first part of the connector to achieve radial limiting. The mutually nested limiting components and the mutually nested first and second parts of the connector do not restrict rotation, so that the first and second parts of the connector can rotate relative to each other for ease of use.

[0011] In this invention, the parts that come into contact with the outer wall of the first part of the connector and the inner wall of the second part of the connector can both be made of rubber material, thereby achieving a dynamic seal. One end of the elastic sheet is fixed to the elastic retaining ring, while the other end extends inward at an angle, providing radial preload while reducing assembly resistance.

[0012] Preferably, the second limiting part is in the shape of a barb. The barb shape of the second limiting part facilitates both mechanical engagement and locking of the second limiting part to prevent it from falling off.

[0013] Preferably, the second limiting member has a third limiting portion extending circumferentially outward and located on the axial side of the second limiting portion, with the axial surface of the second limiting portion contacting the axial surface of the third limiting portion. The third limiting portion is used for axial limiting to prevent the first limiting member from excessively entering and deforming.

[0014] Preferably, the second limiting member has a fourth limiting portion extending outward in a circumferential direction, and the inner circumferential wall of the second part of the connector is provided with a second limiting groove that mates with the fourth limiting portion. This structure enables the connection between the second part of the connector and the second limiting member, preventing the two components from separating.

[0015] Preferably, the second limiting member includes an outer second limiting member and an inner second limiting member. The end of the outer second limiting member is located within the annular mating groove, and the inner second limiting member is located on the axial side of the outer second limiting member. The outer second limiting member has a fifth limiting portion extending to the axial inner side of the inner second limiting member. The circumferential inner wall of the fifth limiting portion and the circumferential outer wall of the inner second limiting member are provided with mutually cooperating positioning protrusions and positioning grooves. The circumferential inner wall of the fifth limiting portion is used to contact the circumferential outer wall of the connector part, and the circumferential inner wall of the inner second limiting member at one end offset from the outer second limiting member is used to contact the circumferential outer wall of the connector part.

[0016] The second limiting component consists of two parts. Different outer and inner second limiting components can be selected according to different models of connector part one and connector part two, and the outer and inner second limiting components can be made of different materials.

[0017] Preferably, the two ends of the connector are provided with a fixing groove that opens to one side in the axial direction. The portion of the first limiting member that deviates from the outer first limiting part and the second limiting member are both located in the fixing groove. The axial surface of the inner second limiting member of the second limiting member that is away from the outer second limiting member is in contact with the axial groove wall of the fixing groove.

[0018] Preferably, the inner second limiting member has an annular groove on its axial surface away from the outer second limiting member. This annular groove divides the end of the inner second limiting member into an inner ring portion and an outer ring portion. The axial surface of the outer ring portion is used to contact the axial groove wall of the fixing groove, and the circumferential inner wall of the inner ring portion is used to contact the circumferential outer wall of the connector portion. A gap exists between the inner ring portion and the axial groove wall of the fixing groove. This arrangement facilitates deformation of the end of the inner second limiting member near the axial groove wall of the fixing groove, ensuring tight contact with the outer wall of the connector portion and guaranteeing a dynamic seal.

[0019] This utility model also discloses an elbow nozzle with the above-mentioned connector assembly structure, wherein one of the components in the first and second connector parts is L-shaped to have an elbow. The valve core assembly and other components in a conventional elbow nozzle can be integrated into either the first or second connector part.

[0020] This invention employs an insertion-fitting method to achieve fixation and sealing between the connector part one, the limiting component, and the connector part two. Alternatively, the elbow nozzle can be connected to the equipment and the pipeline to be connected first, followed by the connection of connector part one and connector part two. This is suitable for assembly in confined spaces. Furthermore, connector part one and connector part two can rotate freely 360° around their central axis to accommodate different installation angles. This invention achieves a seamless combination of rapid assembly, free rotation, and reliable sealing, making it particularly suitable for pipeline connection scenarios with limited space or requiring frequent disassembly and assembly, and is extremely convenient to use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 for Figure 1 Enlarged view of the limiting component in the middle.

[0023] Figure 3 This is a schematic diagram of the limiting component of this utility model. Detailed Implementation

[0024] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0025] Depend on Figures 1 to 3 As shown, this embodiment discloses an elbow nozzle, whose connector assembly structure includes a connector part 100 and a connector part 200 nested together. A limiting component 300 is fixedly fitted around the outer side of the connector part 100. The limiting component 300 is located between the connector part 100 and the connector part 200. The connector part 100 is L-shaped to have an elbow, and the connector part 200 integrates a valve body assembly.

[0026] The limiting assembly 300 includes a first limiting member 3 and a second limiting member 4 along the axial direction. The first limiting member 3, at one end away from the second limiting member 4, has an outer first limiting portion 31 extending outward in a circumferential direction and an inner first limiting portion 32 extending inward in a circumferential direction. The other end of the first limiting member 3 has a second limiting portion 33 extending outward in a circumferential direction. The first limiting member 3, corresponding to the inner side of the second limiting portion 33, has an annular mating groove 30 penetrating one side of the axial direction. One end of the elastic retaining ring 5 and the second limiting member 4 is located within the annular mating groove 30. The inner edge of the elastic retaining ring 5 has several evenly spaced annularly arranged parts for engaging with… The outer wall of the connector part 100 abuts against the elastic piece 51. One end of the elastic piece 51 is connected to the elastic fixing ring 5, and the other end of the elastic piece 51 extends toward the opening of the annular mating groove 30 and extends inward toward the circumferential side of the annular mating groove 30. The axial surface of the end of the connector part 200 contacts the axial surface of the outer first limiting part 31, and the circumferential outer wall of the connector part 100 abuts against the circumferential inner wall of the inner first limiting part 32 and the elastic piece 51. The circumferential inner wall of the connector part 200 is provided with a first limiting groove for cooperating with the second limiting part 33. The second limiting part 33 is located in the first limiting groove and is in the shape of a barb.

[0027] One end of the second limiting member 4 is tightly fitted into the annular mating groove 30, and the other end of the second limiting member 4 abuts against the outer wall of the first part of the connector 100 circumferentially. The second limiting member 4 has a third limiting part 41 extending outward circumferentially and located on the axial side of the second limiting part 33. The axial surface of the second limiting part 33 contacts the axial surface of the third limiting part 41. The second limiting member 4 has a fourth limiting part 42 extending outward circumferentially. The inner wall of the second part of the connector 200 circumferentially is provided with a second limiting groove that mates with the fourth limiting part 42.

[0028] The second limiting member 4 in this embodiment includes an outer second limiting member 401 and an inner second limiting member 402. The end of the outer second limiting member 401 is located in the annular mating groove 30, and the inner second limiting member 402 is located on the axial side of the outer second limiting member 401. The outer second limiting member 401 has a fifth limiting portion 4011 extending to the axial inner side of the inner second limiting member 402. The circumferential inner wall of the fifth limiting portion 4011 and the circumferential outer wall of the inner second limiting member 402 are provided with a positioning protrusion and a positioning groove that cooperate with each other. The circumferential inner wall of the fifth limiting portion 4011 is used to contact the circumferential outer wall of the connector part 100, and the circumferential inner wall of the inner second limiting member 402 that is offset from the outer second limiting member 401 is used to contact the circumferential outer wall of the connector part 100.

[0029] The end of the second part 200 of the connector is provided with a fixing groove 201 that opens to one side in the axial direction. The portion of the first limiting member 3 that is offset from the outer first limiting part 31 and the second limiting member 4 are both located in the fixing groove 201. The axial surface of the inner second limiting member 402 of the second limiting member 4 that is away from the outer second limiting member 401 contacts the axial groove wall of the fixing groove 201. The axial surface of the inner second limiting member 402 that is away from the outer second limiting member has an annular groove 4021. The annular groove 4021 divides the end of the inner second limiting member 402 into an inner ring and an outer ring. The axial surface of the outer ring is used to contact the axial groove wall of the fixing groove 201, and the circumferential inner wall of the inner ring is used to contact the circumferential outer wall of the first part 100 of the connector. There is a gap between the axial surface of the inner ring and the axial groove wall of the fixing groove 201.

Claims

1. A connector assembly structure, comprising a connector part and a connector part nested together, characterized in that: A limiting component is fixedly fitted around the outer side of one part of the connector. The limiting component is located between the first part and the second part of the connector. The limiting component includes a first limiting member and a second limiting member along the axial direction. The first limiting member has an outer first limiting portion extending outward in a circumferential direction and an inner first limiting portion extending in a circumferential direction at one end away from the second limiting member. The other end of the first limiting member has a second limiting portion extending outward in a circumferential direction. The first limiting member is provided with an annular mating groove that penetrates one side of the axial direction on the circumferential inner side corresponding to the second limiting portion. One end of the elastic fixing ring and the second limiting member is located in the annular mating groove. The inner edge of the elastic fixing ring has a plurality of elastic pieces arranged in annular intervals and used to abut against the outer wall of a part of the connector. One end of the elastic piece is connected to the elastic fixing ring, and the other end of the elastic piece extends toward the opening of the annular mating groove and extends inward in a circumferential direction toward the annular mating groove. One end of the second limiting member is tightly fitted into the annular mating groove, and the other end of the second limiting member abuts against the circumferential outer wall of the first part of the connector; the axial surface of the end of the second part of the connector contacts the axial surface of the outer first limiting part, the circumferential outer wall of the first part of the connector abuts against the circumferential inner wall of the inner first limiting part and the elastic sheet, and the circumferential inner wall of the second part of the connector is provided with a first limiting groove for cooperating with the second limiting part, and the second limiting part is located in the first limiting groove.

2. The joint assembly structure according to claim 1, characterized in that: The second limiting part is in the shape of a barb.

3. The joint assembly structure according to claim 1 or 2, characterized in that: The second limiting member has a third limiting portion extending outward in a circumferential direction and located on the axial side of the second limiting portion, and the axial surface of the second limiting portion contacts the axial surface of the third limiting portion.

4. The joint assembly structure according to claim 1, characterized in that: The second limiting member has a fourth limiting part extending outward in a circumferential direction, and the inner wall of the second part of the connector is provided with a second limiting groove that cooperates with the fourth limiting part.

5. The joint assembly structure according to claim 1, 2, or 4, characterized in that: The second limiting member includes an outer second limiting member and an inner second limiting member. The end of the outer second limiting member is located in the annular mating groove, and the inner second limiting member is located on the axial side of the outer second limiting member. The outer second limiting member has a fifth limiting portion extending to the axial inner side of the inner second limiting member. The circumferential inner wall of the fifth limiting portion and the circumferential outer wall of the inner second limiting member are provided with mutually cooperating positioning protrusions and positioning grooves. The circumferential inner wall of the fifth limiting portion is used to contact the circumferential outer wall of the connector part, and the circumferential inner wall of the inner second limiting member at one end offset from the outer second limiting member is used to contact the circumferential outer wall of the connector part.

6. The joint assembly structure according to claim 5, characterized in that: The two ends of the connector are provided with a fixing groove that opens to one side of the axial direction. The part of the first limiting member that is away from the outer first limiting part and the second limiting member are both located in the fixing groove. The axial surface of the inner second limiting member that is away from the outer second limiting member is in contact with the axial groove wall of the fixing groove.

7. The joint assembly structure according to claim 6, characterized in that: The inner second limiting member has an annular groove on its axial surface away from the outer second limiting member. The annular groove divides the end of the inner second limiting member into an inner ring portion and an outer ring portion. The axial surface of the outer ring portion is used to contact the axial groove wall of the fixing groove. The circumferential inner wall of the inner ring portion is used to contact the circumferential outer wall of the connector portion. There is a gap between the inner ring portion and the axial groove wall of the fixing groove.

8. A bent air nozzle having the joint assembly structure described in any one of claims 1-7, characterized in that: One of the components in the first and second parts of the connector is L-shaped to have an elbow.

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