A universal ball joint mechanism with adjustable resistance

Abstract

The utility model relates to mechanical connecting device technical field especially is a kind of universal ball head mechanism of adjustable resistance, it includes connecting arm and the universal head connecting piece of the movable setting in the connecting arm one end, the one end in the connecting arm is also provided with resistance adjusting assembly, the resistance adjusting assembly is used to adjust the friction resistance connected between the universal head connecting piece and the connecting arm one end, the utility model novel structure, design is ingenious, universal head connecting piece is used to be connected with external device, the universal head connecting piece movable setting in the connecting arm one end, and by resistance adjusting assembly is used to adjust the resistance connected between universal head connecting piece and connecting arm, to adapt to the external device of different weight, it is convenient to adjust, and it is flexible to use.

Description

Technical Field

[0001] This utility model relates to the field of mechanical connection device technology, and in particular to a universal ball joint mechanism with adjustable resistance. Background Technology

[0002] Traditional universal ball joint mechanisms generally employ a design mode with fixed frictional resistance, such as achieving self-locking function through the interference fit between the ball joint and the socket. While this type of structure can ensure the stability of the basic connection, it has a technical defect: it cannot dynamically adjust the frictional resistance according to different loads, resulting in stiff operation of lightly loaded equipment or unstable positioning of heavily loaded equipment. Summary of the Invention

[0003] This utility model addresses the problems of existing technology by providing an adjustable resistance universal ball joint mechanism. It features a novel structure and ingenious design. The universal joint connector is used to connect with external equipment. The universal joint connector is movably disposed at one end of the connecting arm, and the resistance adjustment component is used to adjust the resistance between the universal joint connector and the connecting arm to accommodate external equipment of different weights. It is convenient to adjust and flexible to use.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model provides an adjustable resistance universal ball joint mechanism, which includes a connecting arm and a universal joint connector movably disposed at one end of the connecting arm. A resistance adjustment component is also provided at one end of the connecting arm, which is used to adjust the frictional resistance between the universal joint connector and one end of the connecting arm.

[0006] One end of the connecting arm has a movable ball cavity, and one end of the universal joint connector is movably disposed within the movable ball cavity.

[0007] The universal joint connector includes a universal ball joint and a threaded connection portion disposed at one end of the universal ball joint, wherein the universal ball joint is movably disposed within the movable ball cavity.

[0008] The resistance adjustment assembly includes a connecting bracket, an elastic element, a top block, a pressure block, a resistance adjustment screw, a transmission bevel gear, a drive bevel gear, and a resistance adjustment component. The connecting bracket is installed inside the connecting arm. The resistance adjustment component is rotatably mounted on the connecting arm and the connecting bracket. One end of the resistance adjustment component protrudes into the connecting arm and is fixedly fitted with the drive bevel gear. One end of the top block extends into the movable ball cavity and abuts against the universal joint connector. One end of the resistance adjustment screw slides through the other end of the top block, and the other end of the resistance adjustment screw is rotatably connected to the connecting bracket. The transmission bevel gear is fixedly fitted onto the other end of the resistance adjustment screw and meshes with the drive bevel gear. The elastic element is movably fitted onto the outer circumference of the resistance adjustment screw. The pressure block is threaded onto the outer circumference of the resistance adjustment screw. The elastic element is located between the pressure block and the top block, and both ends of the elastic element are connected to the pressure block and the top block, respectively. The pressure block and the top block slide against the inner wall of the connecting arm.

[0009] The elastic element is a spring.

[0010] The resistance adjustment component is a bolt or a pin.

[0011] The beneficial effects of this utility model are:

[0012] This utility model has a novel structure and ingenious design. The universal joint connector is used to connect with external equipment. The universal joint connector is movably disposed at one end of the connecting arm, and the resistance adjustment component is used to adjust the resistance between the universal joint connector and the connecting arm, so as to adapt to external equipment of different weights. It is easy to adjust and flexible to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an adjustable resistance universal ball joint mechanism according to the present invention.

[0014] Figure 2 This is a schematic diagram of the internal structure of an adjustable resistance universal ball joint mechanism according to the present invention.

[0015] exist Figures 1 to 2 The reference numerals in the figures include:

[0016] 100. Connecting arm; 200. Universal joint connector;

[0017] 1. Universal ball joint; 2. Threaded connection; 3. Movable ball cavity; 4. Connecting bracket; 5. Elastic element; 6. Top block; 7. Pressure block; 8. Resistance adjusting screw; 9. Transmission bevel gear; 10. Drive bevel gear; 11. Resistance adjusting element; 12. Limiting groove. Detailed Implementation

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0019] An adjustable resistance universal ball joint mechanism, such as Figures 1 to 2 As shown, it includes a connecting arm 100 and a universal joint connector 200 movably disposed at one end of the connecting arm 100. A resistance adjustment component is also provided at one end of the connecting arm 100. The resistance adjustment component is used to adjust the frictional resistance between the universal joint connector 200 and one end of the connecting arm 100. Specifically, this utility model has a novel structure and ingenious design. The universal joint connector 200 is used to connect with external equipment. The universal joint connector 200 is movably disposed at one end of the connecting arm 100, and the resistance adjustment component is used to adjust the resistance between the universal joint connector 200 and the connecting arm 100, so as to adapt to external equipment of different weights. It is convenient to adjust and flexible to use.

[0020] In this embodiment, one end of the connecting arm 100 is provided with a movable ball cavity 3, and one end of the universal joint connector 200 is movably disposed within the movable ball cavity 3. The universal joint connector 200 includes a universal ball head 1 and a threaded connection portion 2 disposed at one end of the universal ball head 1, which is movably disposed within the movable ball cavity 3. Specifically, the universal ball head 1 is movably and limited within the movable ball cavity 3, and one end of the connecting arm 100 is provided with a limiting groove 12, which communicates with the movable ball cavity 3. The threaded connection portion 2 extends from the limiting groove 12 to limit the range of motion of the universal joint connector 200, ensuring that the connected external device moves within the limited range.

[0021] In this embodiment, the resistance adjustment assembly includes a connecting bracket 4, an elastic element 5, a top block 6, a pressure block 7, a resistance adjustment screw 8, a transmission bevel gear 9, a drive bevel gear 10, and a resistance adjustment component 11. The connecting bracket 4 is installed inside the connecting arm 100. The resistance adjustment component 11 is rotatably mounted on the connecting arm 100 and the connecting bracket 4. One end of the resistance adjustment component 11 protrudes into the connecting arm 100 and is fixedly fitted with the drive bevel gear 10. One end of the top block 6 extends into the movable ball cavity 3 and abuts against the universal joint connector 200. One end of the resistance adjustment screw 8 slides through the other end of the top block 6. The other end of the screw 8 is rotatably connected to the connecting bracket 4. The transmission bevel gear 9 is fixedly sleeved on the other end of the resistance adjusting screw 8. The transmission bevel gear 9 is meshed and connected to the drive bevel gear 10. The elastic element 5 is movably sleeved on the outer periphery of the resistance adjusting screw 8. The pressure block 7 is threadedly sleeved on the outer periphery of the resistance adjusting screw 8. The elastic element 5 is located between the pressure block 7 and the top block 6. The two ends of the elastic element 5 are respectively connected to the pressure block 7 and the top block 6. The pressure block 7 and the top block 6 slide against the inner wall of the connecting arm 100. The elastic element 5 is a spring. The resistance adjusting element 11 is a bolt or a pin.

[0022] Specifically, under the above configuration, rotating the resistance adjusting component 11 drives the drive bevel gear 10 to rotate, which in turn drives the transmission bevel gear 9 to rotate, which in turn drives the resistance adjusting screw 8 to rotate, thereby driving the pressure block 7 to move back and forth along the resistance adjusting screw 8. When the pressure block 7 moves forward toward the universal joint connector 200, the elastic component 5 pushes the top block 6 forward to enhance the frictional resistance between the top block 6 and the universal ball joint 1 of the universal joint connector 200. When the resistance adjusting component 11 is rotated in the opposite direction, the pressure block 7 is moved away from the universal joint connector 200 to reduce the frictional resistance between the top block 6 and the universal joint connector 200. Under the above configuration, the frictional resistance is adjustable, adaptable to external equipment of various weights, and can meet various angle requirements when the external equipment is working.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A universal ball joint mechanism with adjustable resistance, characterized in that: It includes a connecting arm and a universal joint connector movably disposed at one end of the connecting arm. One end of the connecting arm is also provided with a resistance adjustment component, which is used to adjust the frictional resistance between the universal joint connector and one end of the connecting arm.

2. The adjustable resistance universal ball joint mechanism according to claim 1, characterized in that: One end of the connecting arm has a movable ball cavity, and one end of the universal joint connector is movably disposed within the movable ball cavity.

3. The adjustable resistance universal ball joint mechanism according to claim 2, characterized in that: The universal joint connector includes a universal ball joint and a threaded connection portion disposed at one end of the universal ball joint, wherein the universal ball joint is movably disposed within the movable ball cavity.

4. The adjustable resistance universal ball joint mechanism according to claim 2, characterized in that: The resistance adjustment assembly includes a connecting bracket, an elastic element, a top block, a pressure block, a resistance adjustment screw, a transmission bevel gear, a drive bevel gear, and a resistance adjustment component. The connecting bracket is installed inside the connecting arm. The resistance adjustment component is rotatably mounted on the connecting arm and the connecting bracket. One end of the resistance adjustment component protrudes into the connecting arm and is fixedly fitted with the drive bevel gear. One end of the top block extends into the movable ball cavity and abuts against the universal joint connector. One end of the resistance adjustment screw slides through the other end of the top block, and the other end of the resistance adjustment screw is rotatably connected to the connecting bracket. The transmission bevel gear is fixedly fitted onto the other end of the resistance adjustment screw, and the transmission bevel gear meshes with the drive bevel gear for transmission. The elastic element is movably fitted onto the outer circumference of the resistance adjustment screw. The pressure block is threaded onto the outer circumference of the resistance adjustment screw. The elastic element is located between the pressure block and the top block, and both ends of the elastic element are connected to the pressure block and the top block, respectively. The pressure block and the top block slide against the inner wall of the connecting arm, respectively.

5. The adjustable resistance universal ball joint mechanism according to claim 4, characterized in that: The elastic element is a spring.

6. The adjustable resistance universal ball joint mechanism according to claim 4, characterized in that: The resistance adjustment component is a bolt or a pin.

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