Quick nut joint

Abstract

The utility model relates to the field of pipeline connection, in particular to a quick nut joint. The connector comprises a connector body, a limiting ring and a sealing cover, a groove for containing the limiting ring is formed in the top of the connector body, the limiting ring comprises at least three moving blocks and at least three connecting sections, the moving blocks and the connecting sections are alternately connected to form a ring shape, threaded protrusions are arranged on the sides, close to the inner ring, of the moving blocks, and the sides, away from the inner ring, of the moving blocks are inclined faces. At least three inclined protruding blocks complementary with the inclined faces on the movable blocks are annularly arranged in the groove, and the sealing cover is detachably arranged on the groove in a covering mode. The limiting ring with the variable diameter is arranged in the connector body, so that the connector can rapidly slide on the cylindrical body provided with the outer screw rod, the diameter of the limiting ring is reduced to achieve meshing through the limiting effect of the inclined protruding block on the limiting ring in the rotating process, and rapid moving and fixing of the connector are achieved; the structure is simple and installation is fast.

Description

Technical Field

[0001] The utility model relates to the field of pipe connection, in particular to a quick-installing nut joint. Background Art

[0002] During the connection of an externally threaded cylindrical body with a certain length, due to a large number of thread teeth, it often takes a certain amount of time to rotate during the installation process to fully engage with the threads. In the case of too high or too low installation scenarios, especially during the connection of a washbasin and a drain pipe, the installation difficulty and time will increase. Therefore, a quick-installing nut joint is needed. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above deficiencies and provide a quick-installing nut joint, which has the advantages of simple structure, quick installation and disassembly.

[0004] The utility model provides a quick-installing nut joint for connecting a cylindrical body with external threads and a component to be connected. The joint includes a joint body, a limiting ring and a cover. The top of the joint body is provided with a groove for placing the limiting ring. The limiting ring includes at least three moving blocks and at least three connecting segments. The moving blocks and the connecting segments are alternately connected to form a ring. The moving block is provided with a thread protrusion on the side close to the inner circle, and the side of the moving block away from the inner circle is an inclined surface. The inner ring of the groove is provided with at least three inclined protrusions complementary to the inclined surface on the moving block. The cover is detachably covered on the groove. When the joint body abuts against one end of the cylindrical body with external threads, rotating makes the moving block move inward along the surface of the inclined protrusion and engage and lock with the cylindrical body with external threads.

[0005] Further, the joint body includes a lower joint and an upper housing. The lower part of the lower joint is used to connect the component to be connected, and the upper part of the lower joint is detachably connected to the upper housing.

[0006] Further, the inclined protrusion includes a plurality of equally spaced limiting plates, and the side of the moving block away from the inner circle is provided with a positioning block that can be embedded in the gap between two limiting plates.

[0007] Further, the connecting segment is made of an elastic material.

[0008] Further, the top of the moving block is provided with a balance groove, and an opening is provided through the bottom of the balance groove.

[0009] Further, a plurality of clamping rods are arranged in a ring at the bottom of the cover, and a plurality of clamping grooves corresponding to the clamping rods are arranged in a ring on the inner wall of the groove. The detachable connection of the cover is realized by the clamping connection of the clamping rods and the clamping grooves.

[0010] By adopting the above technical solutions, the beneficial effects of the utility model are as follows:

[0011] The utility model realizes the quick movement and fixation of the joint by arranging a limiting ring with a variable diameter inside the joint body, so that the joint can slide quickly on the columnar body provided with an external screw, and at the same time, the diameter of the limiting ring is reduced by the limiting effect of the inclined convex block during the rotation process to achieve meshing. The structure is simple and the installation is fast.

[0012] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure.

[0013] Undoubtedly, such purposes of the present utility model and other purposes will become more obvious after the details of the preferred embodiments described below with multiple drawings and illustrations.

[0014] In order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, one or more preferred embodiments are specifically given below, and in conjunction with the attached drawings, the detailed description is as follows. Description of the Drawings

[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model.

[0016] In the drawings, the same components are denoted by the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only one or several embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on such drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of a quick-install nut joint of the present utility model;

[0019] Figure 2 It is an exploded view of the structure of a quick-install nut joint of the present utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the limiting ring of a quick-install nut joint of the present utility model;

[0021] Figure 4 It is a top view of the limiting ring of a quick-install nut joint of the present utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the upper shell of a quick-install nut joint of the present utility model;

[0023] Description of main reference numerals:

[0024] 1 - Connector body;

[0025] 11 - Groove; 111 - Card slot; 12 - Inclined projection; 121 - Limiting plate; 13 - Lower connector; 14 - Upper housing;

[0026] 2 - Limiting ring;

[0027] 21 - Moving block; 212 - Balance groove; 213 - Opening; 211 - Positioning block; 22 - Connection section;

[0028] 3 - Cover;

[0029] 31 - Card rod. Detailed implementation manners

[0030] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with specific implementation manners. It should be understood that the specific implementation manners described herein are only used to explain the present utility model, but not to limit the present utility model.

[0031] Refer to Figures 1-5 , the present utility model provides a quick - mounting nut connector for connecting a columnar body with an external thread and a component to be connected.

[0032] The connector includes a connector body 1, a limiting ring 2 and a cover 3. The connector body 1 includes a lower connector 13 and an upper housing 14. The lower part of the lower connector 13 is used to connect the component to be connected, and the upper part of the lower connector 13 is detachably connected to the upper housing 14, and the connection method includes but is not limited to threaded connection. The top of the connector body 1 is provided with a groove 11 for placing the limiting ring 2. The limiting ring 2 includes at least three moving blocks 21 and at least three connection sections 22. The moving blocks 21 and the connection sections 22 are alternately connected to form a ring. The moving blocks 21 are provided with thread protrusions on the side close to the inner circle, and the side of the moving blocks 21 far from the inner circle is an inclined surface inclined towards the inner circle. The inner ring of the groove 11 is provided with at least three inclined projections 12 complementary to the inclined surfaces on the moving blocks 21. The connection section 22 is made of an elastic material, specifically a plastic section with a rebound ability or an elastic metal sheet. In the absence of external force, the diameter of the limiting ring 2 is slightly larger than the diameter surrounded by the inclined projections 12. The cover 3 is detachably covered on the groove 11. Specifically, the bottom of the cover 3 is provided with a plurality of card rods 31 around the circumference, and the inner wall of the groove 11 is provided with a plurality of card slots 111 corresponding to the card rods 31. The detachable connection of the cover 3 is realized by the clamping of the card rods 31 and the card slots 111. When necessary, anti - slip protrusions are provided on the top of the cover 3.

[0033] To prevent the moving block 21 from shifting, the inclined convex block 12 includes a plurality of limiting plates 121 arranged at equal intervals, and a positioning block 211 that can be embedded in the gap between two limiting plates 121 is provided on the side of the moving block 21 away from the inner ring.

[0034] To prevent the moving block 21 from being unable to move in the narrow groove 11 due to air pressure, a balance groove 212 is provided at the top of the moving block 21, and an opening 213 is provided through the bottom of the balance groove 212.

[0035] Working principle: When in use, connect the lower joint 13 to the component to be connected, and then directly insert the joint body 1 into the columnar body with an external helix until reaching the topmost end of the columnar body. At this time, the joint body 1 abuts against one end of the columnar body with an external thread, and rotate to make the moving block 21 move along the surface of the inclined convex block 12 towards the inner ring and engage and lock with the columnar body with an external thread.

[0036] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should extend to equivalent alternatives of such features understood by those of ordinary skill in the relevant art. It should also be understood that the terms used herein are only for the purpose of describing specific embodiments and do not mean to limit.

[0037] The "embodiments" mentioned in the specification mean that the specific features or characteristics described in connection with the embodiments are included in at least one embodiment of the present invention. Therefore, the phrase "embodiments" that appears throughout the specification does not necessarily refer to the same embodiment.

[0038] In addition, the described features or characteristics can be combined in any other suitable way into one or more embodiments. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present invention. However, those skilled in the relevant art will understand that the present invention can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A quick-install nut joint for connecting a columnar body with an external thread and a component to be connected, characterized in that, It includes a joint body, a limiting ring and a cover. A groove for placing the limiting ring is provided at the top of the joint body. The limiting ring includes at least three moving blocks and at least three connecting segments. The moving blocks and the connecting segments are alternately connected to form a ring. Threaded protrusions are provided on one side of the moving block close to the inner ring, and the side of the moving block away from the inner ring is an inclined surface. At least three inclined protrusions complementary to the inclined surface on the moving block are provided on the inner ring of the groove. The cover is detachably covered on the groove. When the joint body abuts against one end of a columnar body with an external thread, rotation causes the moving block to move along the surface of the inclined protrusion towards the inner ring and engage and lock with the columnar body with the external thread.

2. The quick-connect nut joint according to claim 1, characterized in that, The joint body includes a lower joint and an upper housing. The lower part of the lower joint is used to connect the component to be connected, and the upper part of the lower joint is detachably connected to the upper housing.

3. The quick-installing nut joint according to claim 1, characterized in that, The inclined protrusion includes a number of equally spaced limiting plates, and a positioning block that can be embedded in the gap between two limiting plates is provided on the side of the moving block away from the inner ring.

4. The quick-installing nut joint according to claim 1, characterized in that, The connecting segment is made of an elastic material.

5. The quick-connect nut joint according to claim 1, characterized in that, A balance groove is provided at the top of the moving block, and an opening is provided through the bottom of the balance groove.

6. The quick-installing nut joint according to claim 1, characterized in that, A number of clamping rods are provided in a ring at the bottom of the cover, and a number of clamping grooves corresponding to the clamping rods are provided in a ring on the inner wall of the groove. The detachable connection of the cover is realized through the clamping connection of the clamping rods and the clamping grooves.

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