Limiting rotation type connecting mechanism

Abstract

The utility model discloses a limit rotation type connecting mechanism which comprises a machine body and a connector, one end of the connector is in threaded connection with a connecting pipe of the machine body, and the relative rotation range between the connector and the connecting pipe is limited through a limit structure, so that the machine body and the connector can be simply and quickly assembled without additionally arranging a buckle, and the cost is reduced. And meanwhile, high connection strength is kept, the connector can freely rotate to a specified angle within a specified range, and the connector is prevented from falling off from the connecting pipe.

Description

[Technical field]

[0001] The utility model relates to the technical field of connection structures, in particular to the technical field of limited rotation connection mechanisms. [Background technology]

[0002] As people's living standards improve, more and more small household appliances are entering family life, such as soybean milk machines, dishwashers and water purifiers. In such household appliances, two connected parts often need to be able to rotate freely relative to each other to facilitate subsequent installation and angle adjustment. Figure 1 and Figure 2 As shown, currently, factories generally use buckle c to rotatably connect component a and component b. However, this structure requires additional buckle assembly, which will increase the number of parts of the device and reduce the assembly efficiency of the device. On the other hand, it will also deteriorate the overall strength of the device, which needs to be solved urgently. [Contents of the utility model]

[0003] The purpose of the utility model is to solve the problems in the prior art and to propose a limited rotation connection mechanism, which not only does not require additional buckles, but can also achieve simple and quick assembly between the machine body and the joint, while maintaining a high connection strength, and can also allow the joint to rotate freely to a specified angle within a specified range, thereby preventing the joint from falling off the connecting pipe.

[0004] To achieve the above purpose, the utility model proposes a limited rotation connection mechanism, including a body and a joint, one end of the joint is threadedly connected to the connecting pipe of the body, and the range of relative rotation between the joint and the connecting pipe is limited by a limiting structure.

[0005] Preferably, the limiting structure is composed of a flange and an insert block, the flange is located outside the joint and is provided with a notch, and the insert block is arranged close to the connecting pipe and one end of the insert block extends into the notch.

[0006] Preferably, the flange is in a circular ring shape, and the notch is in an arc shape.

[0007] Preferably, reinforcing ribs are provided outside the joint.

[0008] Preferably, a sealing ring is installed at the adjacent surface of the joint and the connecting pipe.

[0009] Preferably, the joint sleeve is arranged on the periphery of the connecting pipe, the outer wall of the connecting pipe is provided with a convex wall with a groove, and the sealing ring is located in the groove.

[0010] Preferably, the inner wall of the joint is provided with a sunken portion matching with the convex wall.

[0011] Beneficial effects of the utility model:

[0012] 1) The utility model enables one end of the joint to be directly threadedly connected to the outside of the pipe of the machine body, and adopts a limiting structure to limit the relative rotation range between the pipe and the joint. Not only does it not require additional buckles, it can achieve simple and quick assembly between the machine body and the joint, while maintaining a high connection strength, and can also allow the joint to rotate freely to a specified angle within a specified range to prevent the joint from falling off the pipe;

[0013] 2) The utility model adopts a flange with a notch outside the joint and an insert block arranged near the pipe and extending into the notch to form a limiting structure, and the flange is annular and the notch is arc-shaped. The size of the central angle of the notch can be adjusted to achieve the control of the rotation range of the joint;

[0014] 3) The utility model adds a convex wall with a groove outside the connecting pipe, and sets a sealing ring in the groove. The sealing ring can be used to achieve side compression sealing of the connecting pipe and the joint, effectively avoiding the occurrence of leakage.

[0015] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0016] Figure 1 It is a front view of the existing connection mechanism;

[0017] Figure 2 yes Figure 1 MM section view;

[0018] Figure 3 It is a left view of the limited rotation type connection mechanism of the utility model;

[0019] Figure 4 This is the front view of the limited rotation connection mechanism of the utility model;

[0020] Figure 5 yes Figure 4 NN section view;

[0021] Figure 6 yes Figure 5 An enlarged schematic diagram of P;

[0022] Figure 7 It is a schematic diagram of the internal structure of the limited rotation type connection mechanism of the utility model;

[0023] Figure 8 yes Figure 7 An enlarged schematic diagram of Q of FIG.

[0024] Fig. 9 It is a three-dimensional structural schematic diagram of a joint of the limited rotation type connection mechanism of the utility model.

[0025] In the figure: 1-machine body, 11-connecting pipe, 111-convex wall, 12-insertion block, 2-joint, 21-flange, 211-notch, 22-reinforcement rib, 23-sunk part, 3-sealing ring. [Specific implementation method]

[0026] See also Figures 3 to 9 The utility model provides a limited rotation connection mechanism, comprising a body 1 and a joint 2, wherein one end of the joint 2 is threadedly connected to a connecting pipe 11 of the body 1, and a relative rotation range between the joint 2 and the connecting pipe 11 is limited by a limiting structure.

[0027] The limiting structure is composed of a flange 21 and an insert block 12 . The flange 21 is located outside the joint 2 and is provided with a notch 211 . The insert block 12 is arranged close to the connecting pipe 11 and one end thereof extends into the notch 211 .

[0028] The flange 21 is in a circular ring shape, and the notch 211 is in an arc shape.

[0029] A reinforcing rib 22 is disposed outside the joint 2 .

[0030] A sealing ring 3 is also installed at the adjacent surface of the joint 2 and the connecting pipe 11.

[0031] The joint 2 is sleeved on the periphery of the connecting pipe 11 . The outer wall of the connecting pipe 11 is provided with a convex wall 111 with a groove, and the sealing ring 3 is located in the groove.

[0032] The inner wall of the joint 2 is provided with an inner recessed portion 23 which matches the convex wall 111 .

[0033] Working process of this utility model:

[0034] When in use, one end of the connector 2 is directly rotated outside the connecting pipe 11 until the other end of the connector 2 faces the desired direction. During the relative rotation of the connecting pipe 11 and the connector 2, the plug 12 can cooperate with the notch 211 to jointly limit the maximum forward rotation angle and the maximum reverse rotation angle of the connector 2.

[0035] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. The limited rotation connection mechanism is characterized by: It comprises a machine body (1) and a joint (2), one end of the joint (2) being threadedly connected to a connecting pipe (11) of the machine body (1), and a limiting structure is used to limit the range of relative rotation between the joint (2) and the connecting pipe (11).

2. The limited rotation connection mechanism according to claim 1, characterized in that: The limiting structure is composed of a flange (21) and an insert block (12); the flange (21) is located outside the joint (2) and is provided with a notch (211); the insert block (12) is arranged close to the connecting pipe (11) and one end thereof extends into the notch (211).

3. The limited rotation connection mechanism according to claim 2, characterized in that: The flange (21) is in the shape of a circular ring, and the notch (211) is in the shape of an arc.

4. The limited rotation connection mechanism according to any one of claims 1 to 3, characterized in that: A sealing ring (3) is also installed at the adjacent surface of the joint (2) and the connecting pipe (11).

5. The limited rotation connection mechanism according to claim 4, characterized in that: The joint (2) is sleeved on the periphery of the connecting pipe (11); the outer wall of the connecting pipe (11) is provided with a convex wall (111) with a groove, and the sealing ring (3) is located in the groove.

6. The limited rotation connection mechanism according to claim 5, characterized in that: The inner wall of the joint (2) is provided with an inner sink (23) that matches the convex wall (111).

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