CN216520192U - Anti-loosening joint assembly - Google Patents

Abstract

The utility model belongs to the field of joint components, and particularly relates to an anti-loosening joint component which comprises a male joint and a female joint, wherein the male joint is provided with a first cylinder and a connecting sleeve, one end of the first cylinder is provided with a connecting structure used for being connected with a pipeline or equipment, the connecting sleeve is rotatably arranged at the other end of the first cylinder and is provided with a screwing structure used for being connected with the female joint, the female joint comprises a second cylinder, one end of the second cylinder is provided with a connecting structure used for being connected with the pipeline or the equipment, the other end of the second cylinder is provided with a screwing matching structure used for being matched with the screwing structure of the connecting sleeve, the connecting sleeve is axially and slidably arranged on one of the connecting sleeve and the second cylinder, the other one of the connecting sleeve and the second cylinder is provided with a rotation stopping matching structure matched with a rotation stopping piece, after the male joint is connected with the female joint, the rotation stopping piece is matched with the rotation stopping matching structure to lock the connecting sleeve and the second cylinder, and the rotation stopping piece can be moved to an unlocking position by an operator, the anti-loose joint assembly can ensure that the male joint and the female joint are reliably butted.

Description

Anti-loosening joint assembly

Technical Field

The utility model belongs to the field of joint assemblies, and particularly relates to an anti-loosening joint assembly.

Background

When two sections of piping or piping and equipment are to be connected, a quick and easy connection is typically made by a connector assembly as is common in the prior art.

Taking the connection of the pipeline and the corresponding equipment as an example, the joint assembly comprises a male joint and a female joint, the male joint is provided with a connecting structure connected with the pipeline, the female joint is provided with a connecting structure connected with the corresponding equipment, a butt joint structure for realizing butt joint of the male joint and the female joint is arranged between the male joint and the female joint, and the connection of the pipeline and the equipment is realized through the butt joint between the male joint and the female joint during the connection operation.

The reliability of butt joint between the male joint and the female joint directly determines the reliability of connection between a pipeline and equipment, the male joint and the female joint of a common joint assembly are in butt joint through a threaded connection structure, and after long-time use, particularly the joint assembly in a vibration environment, the male joint and the female joint are easy to loosen, so that the reliability of connection between the pipeline and the equipment is directly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-loosening joint assembly to solve the technical problem that in the prior art, the joint assembly is easy to loosen so that the connection between pipelines or between pipelines and equipment is unreliable.

In order to achieve the aim, the technical scheme of the anti-loosening joint assembly provided by the utility model is as follows:

the utility model provides an anti-loosening joint assembly, includes male joint and female joint, the male joint has first barrel and adapter sleeve, first barrel one end has the connection structure that is used for being connected with pipeline or equipment, and the adapter sleeve rotates to be installed on first barrel other end and has and be used for the structure of connecing soon of being connected with the female joint, and the female joint includes the second barrel, and the one end of second barrel has the connection structure that is used for being connected with pipeline or equipment, and the other end have be used for with the cooperation of the structure of connecing soon of adapter sleeve connects cooperation structure soon, is provided with the adapter sleeve on adapter sleeve and the second barrel axially sliding ground on one of them, is provided with on the other one with the cooperation structure of splining and splining of splining, after male joint is connected with the female joint, and splining the piece has on its sliding stroke and splining the cooperation of splining cooperation structure with the locking position of adapter sleeve and the locking of second barrel is locking, the splining still has and supplies operating personnel's application of force to relieve with the drive splining and splining the cooperation of splining and splining with the cooperation of drive splining and splining The drive structure for unlocking the bit movement.

The beneficial effects are that: after the male joint and the female joint are connected, the rotation stopping piece is matched with the rotation stopping matching structure at the locking position, so that the rotation stopping piece can not rotate relatively between the connecting sleeve and the second cylinder of the female joint as the locking piece, and further the male joint and the female joint which are matched with the rotation stopping matching structure through the rotation connecting structure can not be loosened, and two sections of pipelines or pipelines are connected with equipment stably and reliably for a long time.

As a further improvement, the rotation stopping piece is of a cylindrical structure, and the rotation stopping piece of the cylindrical structure is sleeved on the connecting sleeve or the second cylinder.

The beneficial effects are that: based on the sleeve-shaped structure of the connecting sleeve and the second cylinder body, the rotation stopping piece is also set to be of a cylindrical structure, and the rotation stopping piece of the cylindrical structure is sleeved on the connecting sleeve, so that the rotation stopping piece can be conveniently installed on the connecting sleeve or the second cylinder body.

As a further improvement, the rotation stopping piece is in rotation stopping fit with the connecting sleeve or the second cylinder body through the inner cylinder wall, and the rotation stopping fit structure is in rotation stopping fit with the inner cylinder wall of the rotation stopping piece.

The beneficial effects are that: the rotation stopping piece is in cylindrical and cylindrical sleeved fit with the connecting sleeve or the second cylinder, based on the structure, the inner wall surface of the rotation stopping piece is directly utilized to be in rotation stopping fit with the outer wall surface of the connecting sleeve or the second cylinder, and only the rotation stopping matching surface which is matched with each other is formed on the inner wall surface of the rotation stopping piece and the outer peripheral surface of the connecting sleeve or the second cylinder, so that a complex rotation stopping matching structure is not required to be specially designed and processed, and the anti-loosening connector assembly is convenient to produce and manufacture.

As a further improvement, the section of the inner cylinder wall of the rotation stopping member along the direction perpendicular to the axis is a polygon, and the outer peripheral surfaces of the connecting sleeve and the rotation stopping matching structure are polygon surfaces matched with the inner wall surface of the rotation stopping member.

The beneficial effects are that: the rotation stopping piece is matched with the connecting sleeve and the second cylinder body in a polygonal structure, so that more stable and reliable rotation stopping matching between the rotation stopping piece and the connecting sleeve and the second cylinder body is realized.

As a further improvement, the connecting sleeve or the second cylinder on which the rotation stopping piece is installed is provided with a locking piece for locking the rotation stopping piece at the locking position.

The beneficial effects are that: set up the locking piece and will spline the piece locking and at locking position, avoid spline the unexpected atress of piece and move to unblock position from the locking displacement, ensure to spline the piece and keep steadily at locking position, and then ensure that locking joint assembly has reliable locking performance.

As a further improvement, the rotation stopping member is arranged on the connecting sleeve or the second cylinder in a connection direction of the male joint and the female joint in a locking manner, the locking member is an elastic member, and the locking member locks the position of the rotation stopping member by applying a pushing force to the rotation stopping member toward the rotation stopping matching structure.

The beneficial effects are that: the locking piece is the elastic component, connects the in-process soon with male joint and female joint, and the elastic component can be in step will only splines the piece and push away to the locking position and carry out the position keeping steadily at the locking position, avoids only the unexpected atress of piece slippage from the locking position, when improving the convenience that corresponding locking joint Assembly connects, ensures that locking joint Assembly has reliable locking performance of taking off.

As a further improvement, the rotation stopping piece is arranged on the connecting sleeve, and the rotation stopping matching structure is positioned on one side of the screwing matching structure far away from the male connector and is arranged at intervals with the screwing matching structure; or the rotation stopping piece is arranged on the second cylinder, and the rotation stopping matching structure is positioned on one side of the rotary connection structure, which is far away from the female connector, and is arranged at intervals with the rotary connection structure.

The beneficial effects are that: the rotating stopping piece is arranged on the connecting sleeve as an example, and the elastic piece always provides thrust for the locking piece, so that the rotating stopping piece on the male connector can be avoided relative to the end part of the connecting sleeve, which extends forwards, of the connecting sleeve at the interval between the rotating stopping matching structure and the rotating connecting matching structure in the axis direction of the second cylinder, and the connecting sleeve can complete the matching of the rotating connecting amount as large as possible with the second cylinder of the female connector before the male connector and the female connector are locked by the rotating stopping piece.

As a further improvement, the rotation stop element is arranged on the connecting sleeve.

The beneficial effects are that: the rotation stopping piece is arranged on the connecting sleeve, so that an operator can hold the connecting sleeve and rotate to stop the rotation of the connecting sleeve, the rotation stopping matching structure for the operator to operate is not required to be additionally arranged on the connecting sleeve, and the structure of the anti-loosening joint assembly is simplified.

As a further improvement, the front end of the rotation stopping piece is of a flaring structure; or/and the front end of the connecting sleeve is of a flaring structure.

The beneficial effects are that: the flaring structure is arranged at the front end of the rotation stopping piece, so that the assembly of the rotation stopping piece on the rotation stopping matching structure can be guided, and the connection convenience of the anti-loosening joint assembly is improved; similarly, the flaring structure arranged at the front end of the connecting sleeve can guide the sleeving and screwing of the connecting sleeve and the second cylinder of the female joint, so that the connecting convenience of the anti-loosening joint assembly is improved.

As a further improvement, the screwing structure and the screwing matching structure are of a multi-thread structure.

The beneficial effects are that: the multi-start thread structure can realize the precession of a larger axial distance under the same circumferential rotation quantity, so that the male joint and the female joint can be quickly screwed.

Drawings

FIG. 1 is a schematic structural view of a loose fitting assembly of embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of a male connector of the lock joint assembly of FIG. 1;

FIG. 3 is a schematic structural view of the female connector of the loose fitting assembly of FIG. 1;

description of reference numerals:

1. a male connector; 2. a female joint; 3. a first cylinder; 4. connecting sleeves; 5. a first snap ring; 6. stopping the rotating cylinder; 7. a second snap ring; 8. a first spring; 9. supporting a tube; 10. ejecting the head; 11. an overflowing hole; 12. a valve sleeve; 13. a first seal ring; 14. a second seal ring; 15. a second spring; 16. a second cylinder; 17. a flange plate; 18. a third seal ring; 19. a spring seat; 20. a third spring; 21. a shutter; 22. a fourth seal ring; 23. a rotation stopping matching section; 24. and a third snap ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be 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, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

In the embodiment 1 of the anti-loose joint assembly provided by the present invention, the anti-loose joint assembly is used for realizing the connection between a pipeline and equipment, and the structure and the usage of the anti-loose joint assembly in the present invention are described.

The structure of the anti-loosening joint assembly provided by the embodiment is as shown in fig. 1, and comprises a male joint 1 and a female joint 2, wherein the specific structure of the male joint 1 is as shown in fig. 2, and comprises a first cylinder 3, the left end of the first cylinder 3 is provided with a connecting structure for connecting with a corresponding pipeline, the right end is sleeved with a connecting sleeve 4, specifically, the connecting sleeve 4 is sleeved outside the first cylinder 3 in a circumferentially rotatable and axially anti-disengaging manner through a first snap ring 5, and the right end of the connecting sleeve 4 is provided with an internal thread. The male joint 1 also comprises a rotation stopping cylinder 6 sleeved outside the connecting sleeve 4. Specifically, the left end of the outer wall surface of the connecting sleeve 4 is provided with a convex stopping structure, in this embodiment, the stopping structure is a circular ring table, the rotation stopping cylinder 6 is divided into a large-diameter section on the left side and a small-diameter section on the right side according to the size of the central hole of the rotation stopping cylinder, the rotation stopping cylinder 6 is sleeved on the stopping structure of the connecting sleeve 4 through the large-diameter section, in order to prevent the rotation stopping cylinder 6 from being pulled out rightward, a second snap ring 7 is arranged in a section of the inner hole of the rotation stopping cylinder 6 on the left side of the stopping structure, and the rotation stopping cylinder 6 is installed on the connecting sleeve 4 in a manner of being prevented from dropping off and capable of axially sliding through the second snap ring 7 and a step surface in the central hole and the stopping structure.

In this embodiment, a first spring 8 is disposed between a step surface in the central hole of the rotation stopping cylinder 6 and the stopping structure of the connecting sleeve 4, and the first spring 8 applies a rightward thrust to the rotation stopping cylinder 6, so that the right end of the rotation stopping cylinder 6 is always in a state of being overhung rightward relative to the connecting sleeve 4. In order to realize the rotation stopping matching of the rotation stopping cylinder 6 and the connecting sleeve 4, the outer peripheral surface of one section of the right side of the connecting sleeve 4 is a regular hexagon, correspondingly, the inner wall of the central hole of the small-diameter section of the rotation stopping cylinder 6 is also a regular hexagon, and the rotation stopping cylinder 6 is matched with the outer wall of the regular hexagon of the connecting sleeve 4 through the inner wall of the regular hexagon, so that the rotation stopping installation of the rotation stopping cylinder 6 on the connecting sleeve 4 is realized.

In order to realize the plugging and unplugging under pressure, a male end valve core assembly is also arranged in the male joint 1, specifically, the center of the first cylinder 3 is a stepped hole and comprises a large-diameter section, a middle-diameter section and a small-diameter section from right to left, the male end valve core assembly comprises a supporting tube 9 inserted in the large-diameter section and the middle-diameter section, the right end of the supporting tube 9 is connected with a top 10 in a sealing way, so as to plug the right end of the supporting tube 9, the tube wall at the right end of the supporting tube 9 is provided with an overflowing hole 11, the male end valve core component also comprises a valve sleeve 12 which is sleeved on the right end of the supporting tube 9, the valve sleeve 12 is simultaneously in sliding sealing fit with the supporting tube 9 and the hole wall of the large-diameter section central hole of the first cylinder 3, specifically, a first sealing ring 13 is arranged between the valve sleeve 12 and the support pipe 9, and a second sealing ring 14 is arranged between the valve sleeve 12 and the hole wall of the large-diameter section central hole of the first cylinder 3. In order to enable the valve sleeve 12 to be located at the position for blocking the overflowing hole 11 when the anti-loose joint assembly is not in butt joint and push the valve sleeve 12 to the position for blocking the overflowing hole 11 when the anti-loose joint assembly is not in butt joint, a second spring 15 is arranged between the left end face of the valve sleeve 12 and a step face at the transition position of a large-diameter section central hole and a medium-diameter section central hole of the first cylinder 3, and when the anti-loose joint assembly is not in contact, the overflowing hole 11 is not communicated with the space on the right side of the male joint 1 under the sealing fit of the valve sleeve 12 with the support pipe 9 and the first cylinder 3 and the blocking of the top head 10.

The structure of the female joint is shown in fig. 3, and comprises a second cylinder 16, a flange 17 is arranged at the right end of the second cylinder 16, a sealing ring groove surrounding a central hole orifice of the second cylinder 16 and a third sealing ring 18 arranged in the sealing ring groove are arranged on the right disc surface of the flange 17, and the flange 15 is used as a connecting structure, so that the female joint 2 can be connected to corresponding equipment and the central hole of the second cylinder 16 is in sealing butt joint with an oil path or an air path of the equipment. The second cylinder 16 has an external thread matched with the connecting sleeve 4, an internal thread in a central hole at the right end of the connecting sleeve 4 is used as a screwing structure, an external thread at the left end of the second cylinder 16 is used as a screwing matching structure, and the male connector 1 and the female connector 2 can be screwed and matched through the matching of screwing and matching structures. In this embodiment, the screwing structure is a trapezoidal thread with 12 heads, so that the quick screwing operation can be realized, and the number of heads of the screwing structure can be increased or decreased adaptively in other embodiments. In other embodiments, one of the twist-on structure and the twist-on mating structure may be a curved groove, and correspondingly, the other is a staple. The second cylinder 16 has a rotation stop fitting structure for fitting with the rotation stop cylinder 6 of the male connector 1, and in this embodiment, the rotation stop fitting structure is a rotation stop fitting section 23 having a hexagonal cross section and an outer peripheral surface between the rotation stop fitting structure and the flange 17.

Also in order to realize the plugging and unplugging under pressure, the female joint 2 is provided with a female end valve core assembly, specifically, the female end valve core assembly comprises a spring seat 19, a third spring 20 and a valve 21, the spring seat 19 is provided with a central hole for fluid to flow through and is arranged in the central hole of the second cylinder 16 in a right anti-slip way through a third snap ring 24, the right end of the third spring is sleeved on the spring seat 19, the left end of the third spring is sleeved on the valve 21, so that the valve 21 can move left and right in the central hole of the second cylinder 16, in the moving stroke of the third spring, the female joint is provided with a plugging position for plugging the central hole of the second cylinder 16 and a plugging position for plugging the central hole of the second cylinder 16, the second cylinder 16 and the valve 21 are provided with a blocking structure for limiting the valve to move left in the plugging position, when the valve 21 is in the plugging position, the valve 21 is in sealed fit with the inner cylinder wall of the second cylinder 16 through a fourth sealing ring 22, in order to be in butt joint with the male joint 1, the third spring 20 presses the flap 21 in the blocking position.

During the use, be connected male joint 1 with corresponding pipeline through the connection structure of first barrel 3 left end, be connected female joint 2 with corresponding equipment through flange 17 of second barrel 16 right-hand member for the pipeline of treating the butt joint can take the area based on the setting of male end case subassembly and female end case subassembly. During specific butt joint, the connecting sleeve 4 is aligned with the second cylinder 16, the rotation stopping cylinder 6 is rotated, the connecting sleeve 4 is driven by the rotation stopping cylinder 6 to rotate to be connected with the second cylinder 16 in a rotating mode, along with the increase of the rotating connection amount of the connecting sleeve 4 and the second cylinder 16, the right end face of the rotation stopping cylinder 6 is abutted against and matched with the left end face of the rotation stopping matching section 23 of the second cylinder 16 to be blocked, along with the continuous rotation of the rotation stopping cylinder 6 and the continuous increase of the rotating connection amount of the connecting sleeve 4 and the second cylinder 16, the rotation stopping cylinder 16 slides leftwards relative to the connecting sleeve and further compresses the first spring 8, and when the hexagonal inner wall face of the rotation stopping cylinder 6 is aligned with the hexagonal outer peripheral face of the rotation stopping matching section 23, the first spring 8 pushes the rotation stopping cylinder 6 to slide rightwards relative to the connecting sleeve 4 to be sleeved on the rotation stopping matching section 23 and to be matched with the rotation stopping matching section 23 in a rotation stopping mode. By means of the rotation stopping matching of the rotation stopping cylinder 6 and the connecting sleeve 4 and the second cylinder 16, the rotation stopping matching of the connecting sleeve 4 and the second cylinder 16 is realized, so that the joint assembly has the anti-loosening performance. In this embodiment, in order to ensure that the connecting sleeve 4 and the second cylinder 16 have the largest screwing amount, the rotation stopping matching section 23 has a gap with the external thread of the second cylinder 16. When the connecting sleeve needs to be disassembled, the stop rotating cylinder 6 is pushed to the unlocking position leftwards, the stop rotating matching of the stop rotating cylinder 6 and the stop rotating matching section 23 is released, and then the connecting sleeve 4 and the female joint are unscrewed.

In the butt joint process, the second cylinder 16 pushes the valve sleeve 12 to open the overflowing hole 11, the support pipe 9 pushes the valve 21 to a blockage removing position through the pushing head 10 pushing the valve 21, and the communication between the male joint 1 and the female joint 2 is realized. After the butt joint is completed, the first spring 8 is used as a locking piece to lock the stop drum 6 in the locking position. In this embodiment, the rotation stopping cylinder 6 serves as a rotation stopping member of the male connector to prevent loosening after the male connector and the female connector are screwed together, the cylindrical rotation stopping member is sleeved on the connecting sleeve, and the outer peripheral surface of the rotation stopping member serves as a driving structure, so that an operator can apply force to the rotation stopping member to drive the rotation stopping member to move to an unlocking position where the rotation stopping member is disengaged from the rotation stopping engagement section 23.

In this embodiment, the rotation stopping cylinder 6 is sleeved on the rotation stopping matching section 23 during operation, and the connecting sleeve 4 is rotatably sleeved on the second cylinder 16, so that the front ends of the rotation stopping cylinder 6 and the connecting sleeve 4 are both provided with flaring structures.

The utility model is described above only by taking the connection between the pipeline and the equipment as an example, and of course, in other embodiments, the anti-loose joint assembly may also be an anti-loose joint assembly with other modified structures for the connection between the pipeline and the equipment. In addition, in this embodiment, a self-sealing joint with a valve core assembly and capable of connecting under pressure is taken as an example to describe the joint assembly, and in other embodiments, the joint assembly may also be a joint assembly without a valve core assembly.

The specific embodiment 2 of the anti-loose joint assembly provided by the utility model is mainly different from the embodiment 1 in that: in embodiment 1, the locking member for locking the rotation stopper at the locking position is an elastic member. In this embodiment, the locking member is a locking pin, and specifically, a locking hole and a locking mating hole are formed in the rotation stopping member and the connecting sleeve, and when the rotation stopping member is located at the locking position, the locking hole and the locking mating hole are aligned, and at this time, the locking pin is inserted and fixed in the aligned locking hole and locking mating hole.

The specific embodiment 3 of the anti-loose joint assembly provided by the utility model is mainly different from the embodiment 1 in that: in embodiment 1, the rotation stopping member is a sleeve-shaped structure sleeved on the connecting sleeve. In this embodiment, a blind hole extending in the left-right direction is formed in the right end face of the connecting sleeve, the rotation stopping member is a rotation stopping shaft installed in the blind hole through a spring, correspondingly, the second cylinder body is provided with a large-diameter section located between the rotary connection matching structure and the connecting structure, the rotation stopping matching structure is a rotation stopping hole formed in the left end face of the large-diameter section, when the rotation stopping member is not in butt joint with the female connector, the right end of the rotation stopping shaft extends out of the blind hole, the rotation stopping shaft is provided with a shifting pin extending in the radial direction of the connecting cylinder, and correspondingly, the connecting cylinder is provided with an elongated slot communicating with the blind hole and extending in the left-right direction to avoid the shifting pin, so that an operator can drive the rotation stopping shaft from a locking position to an unlocking position through the shifting pin.

The specific embodiment 4 of the anti-loose joint assembly provided by the utility model is mainly different from the embodiment 1 in that: in embodiment 1, the cylindrical rotation stopping member is engaged with the connecting sleeve and the rotation stopping engagement structure through the polygonal inner cylinder wall. In this embodiment, the inner wall of the rotation stopping member of the cylindrical structure has a sliding block or a sliding groove extending in the left-right direction, and correspondingly, the outer avoiding surface of the connecting sleeve has a sliding groove or a sliding block extending in the left-right direction, and the rotation stopping and slidable mounting of the cylindrical rotation stopping member on the connecting sleeve is realized by the matching of the sliding groove and the sliding block.

The specific embodiment 5 of the anti-loose joint assembly provided by the utility model is mainly different from the embodiment 1 in that: in embodiment 1, the rotation stopping member is disposed on the connecting sleeve of the male connector, and the rotation stopping matching structure is disposed on the female connector.

Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents can be made in the technical solutions described in the foregoing embodiments without inventive effort, or some technical features of the present invention may be substituted for the corresponding ones. 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 (10)

1. A kind of anti-loosing connects the assembly, including male joint (1) and female joint (2), the said male joint (1) has first cylinder (3) and adapter sleeve (4), one end of the said first cylinder (3) has the linkage used for connecting with pipeline or apparatus, the adapter sleeve (4) is installed on another end of the first cylinder (3) and has the structure of connecting with female joint (2) rotatably, the female joint (2) includes the second cylinder (16), one end of the second cylinder (16) has the linkage used for connecting with pipeline or apparatus, another end has the cooperation structure of connecting with the said adapter sleeve (4) of connecting with rotating the structure of connecting with rotating, its characteristic is, the adapter sleeve (4) is set up axially slidably on one of them and second cylinder (16), there is the cooperation structure of stopping the rotation cooperating with stopping the rotation piece to stop rotating on the other one, after the male connector (1) is connected with the female connector (2), the rotation stopping piece is provided with a locking position which is matched with the rotation stopping matching structure to lock the connecting sleeve (4) and the second cylinder body (16) in a locking way on the sliding stroke of the rotation stopping piece, and the rotation stopping piece is also provided with a driving structure which is used for an operator to apply force to drive the rotation stopping piece to remove the unlocking position matched with the rotation stopping matching structure.

2. Anti-loose joint assembly according to claim 1, characterized in that the rotation stop member is of a cylindrical structure, which is fitted over the connection sleeve (4) or the second cylinder (16).

3. Anti-loose joint assembly according to claim 2, characterized in that the rotation stop element is in rotation stop engagement with the connection sleeve (4) or the second cylinder (16) by means of an inner cylinder wall, the rotation stop engagement being in rotation stop engagement with the inner cylinder wall of the rotation stop element.

4. The anti-loose joint assembly as claimed in claim 3, wherein the section of the inner cylinder wall of the rotation stopping member along the direction perpendicular to the axis is polygonal, and the outer peripheral surfaces of the connecting sleeve (4) and the rotation stopping matching structure are polygonal surfaces matched with the inner wall surface of the rotation stopping member.

5. Anti-loose joint assembly according to any of the claims 1-4, characterized in that the connecting sleeve (4) or the second cylinder (16) on which the anti-rotation element is mounted has a locking element which locks the anti-rotation element in the locked position.

6. Anti-loose joint assembly according to claim 5, characterized in that the anti-rotation element is mounted in a captive manner on the connecting sleeve (4) or the second cylinder (16) in the connecting direction of the male (1) and female (2) joint, the locking element being a resilient element which locks the anti-rotation element in position by exerting a pushing force on the anti-rotation element towards the anti-rotation engagement.

7. Anti-loose joint assembly according to claim 6, characterized in that the anti-rotation element is mounted on the connection sleeve (4), and the anti-rotation fitting structure is located on the side of the screw fitting structure remote from the male joint (1) and spaced from the screw fitting structure; or the rotation stopping piece is arranged on the second cylinder (16), and the rotation stopping matching structure is positioned on one side of the rotary connection structure, which is far away from the female connector (2), and is arranged at intervals with the rotary connection structure.

8. Anti-loose joint assembly according to any of the claims 2-4, characterized in that the rotation stop is arranged on the connecting sleeve (4).

9. The anti-loosening joint assembly according to any one of claims 2 to 4, wherein the front end of the rotation stopping member is of a flaring structure; or/and the front end of the connecting sleeve (4) is of a flaring structure.

10. The anti-loosening joint assembly according to any one of claims 1 to 4, wherein the screwing structure and the screwing mating structure are a multi-start thread structure.

Images