Tightness-adjustable joint structure

Abstract

The utility model relates to the technical field of joint structures, in particular to a tightness-adjustable joint structure which is characterized in that a through hole is formed in a second rotating shell; an external thread is arranged on the pivot; a connecting sleeve is arranged on the handle; an internal thread in threaded connection with the external thread is arranged in the connecting sleeve; the pivot is fixed on the first rotating shell; the end, with the external thread, of the pivot sequentially penetrates through the through hole and the gasket and then is in threaded connection with the internal thread; and the gasket is tightly pressed on the second rotating shell by the connecting sleeve. When the joint structure is used, hand feeling adjustment of relative rotation of the first rotating shell and the second rotating shell is achieved, and the joint structure is more convenient and flexible to use.

Description

Technical Field

[0001] The utility model relates to the technical field of joint structures, in particular to a joint structure capable of adjusting tightness. Background Art

[0002] A joint is a connection between two parts that can rotate relative to each other. Figure 1 As shown, usually, two ends of the joint body A are connected with fixing rods B respectively; the two fixing rods B can rotate around the pivot of the joint body A.

[0003] Since the adjustment feel of the existing joint body A cannot be adjusted according to the usage scenario, the difficulty of rotating the joint body A varies in different usage scenarios. When selecting the joint body, it is necessary to use it according to different usage scenarios, which is very inconvenient.

[0004] Therefore, it is necessary to further innovate the existing joint structure. Utility Model Content

[0005] The utility model aims to provide a joint structure with adjustable tightness in view of the defects and shortcomings of the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model discloses a joint structure capable of adjusting tightness and looseness, which comprises a pivot, a first rotating shell, a second rotating shell, a gasket and a handle;

[0008] The second rotating shell is provided with a through hole; the pivot is provided with an external thread; the handle is provided with a connecting sleeve;

[0009] The connecting sleeve is provided with an internal thread connected to the external thread; the pivot is fixed on the first rotating shell; one end of the pivot with the external thread passes through the through hole and the gasket in sequence and is threadedly connected to the internal thread; the connecting sleeve presses the gasket onto the second rotating shell.

[0010] Furthermore, a concave ring is provided on the pivot shaft; a retaining ring is slidably connected inside the concave ring.

[0011] Furthermore, the retaining ring is a retaining spring; the retaining spring is clamped in the concave ring.

[0012] Furthermore, a spring is connected between the first rotating shell and the second rotating shell.

[0013] Furthermore, a positioning ring is provided on the second rotating outer shell; a friction gasket is sleeved on the outside of the positioning ring; and the first rotating outer shell presses the friction gasket onto the second rotating outer shell.

[0014] Furthermore, the first rotating shell is connected to a bottom plate; and the pivot is fixed on the bottom plate.

[0015] After adopting the above structure, the beneficial effects of the utility model are as follows: the pivot, in addition to being used as a connecting rotating shaft between the first rotating shell and the second rotating shell, also provides a pulling force to the handle through the pivot, so that the first rotating shell and the second rotating shell are pressed against each other to generate friction; by rotating the handle to move the handle on the pivot, the force of the gasket being pressed by the connecting sleeve is adjusted, and the friction force of the second rotating shell rotating relative to the first rotating shell is changed, so that the feel adjustment of the relative rotation of the first rotating shell and the second rotating shell is realized, making the use of the joint structure more convenient and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the connection between the joint body and the fixed rod;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 It is an exploded view of the utility model;

[0019] Figure 4 It is an exploded view of the connection between the pivot, retaining ring and spacer;

[0020] Description of reference numerals:

[0021] A, joint body; B, fixed rod; 1, base plate; 2, pivot; 201, external thread; 202, concave ring;

[0022] 3. First rotating housing; 4. Spring; 5. Friction pad; 6. Second rotating housing;

[0023] 601, positioning ring; 7, retaining ring; 8, gasket; 9, handle; 901, connecting sleeve. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] like Figures 1 to 4 As shown, the utility model is an adjustable joint structure, which includes a pivot 2, a first rotating shell 3, a second rotating shell 6, a gasket 8 and a handle 9;

[0026] The second rotating housing 6 is provided with a through hole; the pivot 2 is provided with an external thread 201; the handle 9 is provided with a connecting sleeve 901;

[0027] The connecting sleeve 901 is provided with an internal thread threadedly connected to the external thread 201; the pivot 2 is fixed to the first rotating housing 3; one end of the pivot 2 with the external thread 201 passes through the through hole and the gasket 8 in sequence and is threadedly connected to the internal thread;

[0028] The connecting sleeve 901 presses the gasket 8 onto the second rotating housing 6;

[0029] In addition to being used as a connecting rotating shaft between the first rotating shell 3 and the second rotating shell 6, the pivot 2 also provides a pulling force to the handle 9 through the pivot 2, so that the first rotating shell 3 and the second rotating shell 6 are pressed against each other to generate friction; by rotating the handle 9 to move the handle 9 on the pivot 2, the force of the gasket 8 being pressed by the connecting sleeve 901 is adjusted, and the friction force of the second rotating shell 6 rotating relative to the first rotating shell 3 is changed, thereby realizing the feel adjustment of the relative rotation between the first rotating shell 3 and the second rotating shell 6, making the use of the joint structure more convenient and flexible.

[0030] As a preferred embodiment of the present invention, a concave ring 202 is provided on the pivot 2; a retaining ring 7 is slidably connected inside the concave ring 202;

[0031] The length of the concave ring 202 is longer than the thickness of the retaining ring 7 , ensuring that the retaining ring 7 has enough sliding space inside the concave ring 202 ; when the handle 9 is completely loosened from the pivot 2 , the retaining ring 7 is used to prevent the gasket 8 from sliding out of the pivot 2 .

[0032] As a preferred embodiment of the present invention, the retaining ring 7 is a retaining spring, which is clamped in the concave ring 202. Using a retaining spring as the retaining ring 7 facilitates assembly and disassembly.

[0033] As a preferred embodiment of the present invention, a spring 4 is connected between the first rotating shell 3 and the second rotating shell 6; the spring 4 elastically compresses the first rotating shell 3 and the second rotating shell 6 and cooperates with the gasket 8 to form elastic compression between the first rotating shell 3 and the second rotating shell 6, which is equivalent to the second rotating shell 6 being elastically compressed on the gasket 8.

[0034] As a preferred embodiment of the utility model, a positioning ring 601 is provided on the second rotating shell 6; a friction gasket 5 is sleeved on the outside of the positioning ring 601; the first rotating shell 3 presses the friction gasket 5 onto the second rotating shell 6; the friction gasket 5 is used as a conductive part for relative rotation between the first rotating shell 3 and the second rotating shell 6, which can avoid direct friction between the first rotating shell 3 and the second rotating shell 6.

[0035] As a preferred embodiment of the present invention, the first rotating housing 3 is connected to a bottom plate 1 ; the pivot 2 is fixed on the bottom plate 1 .

[0036] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A joint structure with adjustable tightness, characterized in that: It comprises a pivot (2), a first rotating shell (3), a second rotating shell (6), a gasket (8) and a handle (9); The second rotating shell (6) is provided with a through hole; the pivot (2) is provided with an external thread (201); the handle (9) is provided with a connecting sleeve (901); The connecting sleeve (901) is provided with an internal thread threadedly connected to the external thread (201); the pivot (2) is fixed to the first rotating housing (3); one end of the pivot (2) with the external thread (201) passes through the through hole and the gasket (8) in sequence and is then threadedly connected to the internal thread; The connecting sleeve (901) presses the gasket (8) onto the second rotating housing (6).

2. The joint structure with adjustable tightness according to claim 1, characterized in that: The pivot shaft (2) is provided with a concave ring (202); a retaining ring (7) is slidably connected inside the concave ring (202).

3. The joint structure with adjustable tightness according to claim 2, characterized in that: The retaining ring (7) is a retaining spring; the retaining spring is clamped in the concave ring (202).

4. The joint structure with adjustable tightness according to claim 1, characterized in that: A spring (4) is connected between the first rotating shell (3) and the second rotating shell (6).

5. The joint structure with adjustable tightness according to claim 1, characterized in that: The second rotating outer shell (6) is provided with a positioning ring (601); the outer portion of the positioning ring (601) is covered with a friction gasket (5); and the first rotating outer shell (3) presses the friction gasket (5) onto the second rotating outer shell (6).

6. The joint structure with adjustable tightness according to claim 1, characterized in that: The first rotating shell (3) is connected to a bottom plate (1); the pivot (2) is fixed on the bottom plate (1).

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