An adjustable hinge that can be used at multiple angles
By combining the telescopic sleeve, adjustment mechanism, and bearing mechanism, the limitations of the adjustment shaft in angle adjustment are solved, enabling multi-angle adjustment and improving the efficiency and stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIJIA HARDWARE MFG CO LTD
- Filing Date
- 2025-09-30
- Publication Date
- 2026-07-03
Smart Images

Figure CN224453380U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of adjustable shaft technology, and in particular to an adjustable shaft that can be used at multiple angles. Background Technology
[0002] An adjustable shaft is a mechanical transmission device that allows for tension adjustment based on specific application scenarios and usage conditions. It consists of a shaft body, bearings, an adjuster, and a dustproof device, and is typically made of high-quality alloy steel or engineering plastics, exhibiting good wear resistance and corrosion resistance. Existing adjustable shafts often have limitations in angle adjustment, making it difficult to meet the needs of applications requiring flexible multi-angle adjustment. For example, in industrial production lines where frequent adjustments to equipment position and angle are required, traditional shafts cannot provide sufficient adjustment range and flexibility, leading to inefficiency when switching between different operating states and impacting the user experience. Therefore, this application proposes an adjustable shaft capable of multi-angle use. Utility Model Content
[0003] The purpose of this invention is to address the limitations in angle adjustment in the prior art by proposing an adjustable shaft that can be used at multiple angles.
[0004] The technical solution of this utility model is as follows: an adjustable rotating shaft that can be used at multiple angles includes a telescopic sleeve rod and an adjustment mechanism disposed at both ends of the telescopic sleeve rod. The adjustment mechanism includes sliding rods that are slidably connected to both ends of the inner wall of the telescopic sleeve rod. A connecting rod is fixedly connected to one end of the two sliding rods away from the telescopic sleeve rod. A bearing mechanism is disposed on the outer wall of the connecting rod.
[0005] The bearing mechanism includes a limiting sleeve rod sleeved on the outer wall of the connecting rod. A limiting groove is formed on one side of the limiting sleeve rod, and two rubber rings are fixedly connected to the inner wall of the limiting groove.
[0006] A connecting mechanism is provided at one end of the limiting sleeve.
[0007] Optionally, the connecting mechanism includes a bushing fixed to the end of the limiting sleeve rod away from the connecting rod, and both ends of the outer wall of the bushing have through shafts.
[0008] Optionally, the inner walls of the plurality of through shafts are rotatably connected with cross universal joints, and the other two ends of the cross universal joints are each connected to bushings through the through shafts.
[0009] Optionally, each end of the universal joint is fixedly connected with a fixing nut, and the universal joint is located at the center of bushing one and bushing two.
[0010] Optionally, the inner wall of the limiting groove is lined with a wear-resistant layer, which is made of rubber.
[0011] Optionally, a connecting block is fixedly connected to the end of each of the two telescopic sleeves away from the connecting rod, and a rotating frame is fixedly connected to the end of each connecting block away from the telescopic sleeve. Multiple rotating frames can be connected through a fixing screw.
[0012] Optionally, a rotating ring is rotatably connected between the two rubber rings, and the inner wall of the rotating ring is fixedly connected to the outer wall of the connecting rod.
[0013] Compared with the prior art, this application includes at least one of the following beneficial technical effects: This device achieves flexible adjustment of length and multiple angles through the synergistic action of the telescopic sleeve, adjustment mechanism, bearing mechanism and connecting mechanism. The telescopic sleeve can meet the installation requirements of different lengths, so that the adjustment shaft can adapt to various different installation spaces. The setting of the bearing mechanism and the cross universal joint allows the adjustment shaft to be adjusted in multiple planes, which greatly increases the adjustment range and flexibility, enabling the device to meet the needs of various application scenarios and improve the efficiency of equipment use and user experience. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a three-dimensional structure for an adjustable rotating shaft that can be used at multiple angles;
[0015] Figure 2 This is a schematic diagram of the internal structure of a limiting sleeve rod for an adjustable rotating shaft that can be used at multiple angles;
[0016] Figure 3 This is a schematic diagram of a bushing connection structure for an adjustable shaft that can be used at multiple angles;
[0017] Figure 4 for Figure 2 Enlarged view of point A in the middle.
[0018] Reference numerals in the attached diagram: 1. Telescopic sleeve rod; 2. Sliding rod; 3. Limiting sleeve rod; 4. Limiting groove; 5. Rubber ring; 6. Wear-resistant layer; 7. Connecting rod; 8. Rotating ring; 9. Bushing one; 10. Fixing nut; 11. Through shaft; 12. Universal joint; 13. Bushing two; 14. Connecting block; 15. Rotating frame. Detailed Implementation
[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0020] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0021] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Example 1
[0026] like Figure 1 and Figure 2As shown, the present invention proposes an adjustable shaft that can be used at multiple angles, including a telescopic sleeve rod 1 and an adjustment mechanism disposed at both ends of the telescopic sleeve rod 1. The adjustment mechanism includes sliding rods 2 that are slidably connected to both ends of the inner wall of the telescopic sleeve rod 1. A connecting rod 7 is fixedly connected to one end of the two sliding rods 2 away from the telescopic sleeve rod 1. The sliding rods 2 are tightly fitted with the inner wall of the telescopic sleeve rod 1 to form a sliding connection relationship. This connection method allows the sliding rods 2 to slide freely within the telescopic sleeve rod 1, thereby changing the length of the entire adjustable shaft. The connecting rod 7 acts as a bridge connecting the sliding rods 2 and other components, ensuring the continuity and stability of the entire adjustable shaft structure.
[0027] It should be added that, such as Figure 1 , Figure 2 and Figure 4 As shown, the outer wall of the connecting rod 7 is provided with a bearing mechanism, which includes a limiting sleeve 3 sleeved on the outer wall of the connecting rod 7. By setting the limiting sleeve 3, the rotation of the connecting rod 7 is limited and supported, providing a relatively stable rotation space for the connecting rod 7, and preventing the connecting rod 7 from shifting or shaking during rotation, thus ensuring the accuracy and stability of rotation. A limiting groove 4 is opened on one side of the limiting sleeve 3, and two rubber rings 5 are fixedly connected to the inner wall of the limiting groove 4. By setting the limiting groove 4, the rotation angle and range of motion of the connecting rod 7 are limited, so that the connecting rod 7 can only rotate within a specific angle range, thereby meeting the precise requirements for angle adjustment in different application scenarios. The inner wall of the limiting groove 4 is covered with a wear-resistant layer 6, which is made of rubber. A rotating ring 8 is rotatably connected between the rubber rings 5. The inner wall of the rotating ring 8 is fixedly connected to the outer wall of the connecting rod 7. When the connecting rod 7 rotates in the limiting groove 4, the rubber rings 5 and the surface of the connecting rod 7 are in close contact, generating friction. This allows the connecting rod 7 to remain stably at the required angle, avoiding angle changes caused by slight external disturbances, and improving the stability and reliability of the adjustment. The rotating ring 8, as an auxiliary component for the rotation of the connecting rod 7, reduces friction and improves the smoothness of rotation. Its rotation between the two rubber rings 5 makes the rotation of the connecting rod 7 more flexible, reducing resistance and wear caused by direct friction with the rubber rings 5, and extending the service life of the adjusting shaft. The main function of the wear-resistant layer 6 is to protect the inner wall of the limiting groove 4 and reduce wear between it and the rotating parts.
[0028] And, as Figure 2 , Figure 3 and Figure 4As shown, a connecting mechanism is provided at one end of the limiting sleeve 3. The connecting mechanism includes a bushing 9 fixed to the end of the limiting sleeve 3 away from the connecting rod 7. Both ends of the outer wall of the bushing 9 are penetrated by through shafts 11. The inner walls of multiple through shafts 11 are rotatably connected to universal joints 12. The bushing 9 is fixedly connected to the limiting sleeve 3, serving to connect the limiting sleeve 3 to the subsequent universal joints 12 and bushing 13. At the same time, the bushing 9 also provides a support point for the installation and rotation of the universal joints 12. The universal joint 12 passes through the outer wall of bushing 9, allowing it to rotate around the through shaft 11, thus achieving angle adjustment in different directions. Both ends of the universal joint 12 are connected to bushings 13 via the through shaft 11. The universal joint 12 can rotate in multiple planes. Through the rotation of the universal joint 12, bushings 9 and 13 can achieve relative rotation at multiple angles, greatly increasing the angle adjustment range of the adjusting shaft. Bushing 13 is connected to the universal joint 12 via the through shaft 11, ultimately... To achieve connection with other equipment or components, bushing 2 13 can transmit the angle adjustment of the adjusting shaft to the connected equipment, realizing multi-angle adjustment of the equipment. The universal joint 12 is fixedly connected to fixing nuts 10 at multiple ends, and the universal joint 12 is located at the center of gravity of bushing 1 9 and bushing 2 13. The universal joint 12 is located at the center of bushing 1 9 and bushing 2 13, which makes the entire connection mechanism more balanced and stable during rotation, reducing swaying and vibration caused by the shift of the center of gravity, and improving the performance of the adjusting shaft. The ends of the two telescopic sleeves 1 away from the connecting rod 7 are fixedly connected to connecting blocks 14, and the ends of the connecting blocks 14 away from the telescopic sleeves 1 are fixedly connected to rotating frames 15. The connecting blocks 14 serve to connect the telescopic sleeves 1 and the rotating frames 15, and transmit the movement and adjustment of the telescopic sleeves 1 to the rotating frames 15 through the connecting blocks 14. At the same time, it also provides a stable support base for the rotating frames 15. Multiple rotating frames 15 can be connected through fixing screws, so that multiple shafts can be connected and lengthened for convenient use.
[0029] In this embodiment, when using the device, the sliding rod 2 is pulled or pushed to slide within the telescopic sleeve 1. Since the sliding rod 2 is slidably connected to the inner wall of the telescopic sleeve 1, the length of the entire adjusting shaft can be easily changed. The connecting rod 7 rotates within the limiting groove 4 of the limiting sleeve 3 via the rotating ring 8, allowing it to reach the desired angle within the limiting groove 4. The rubber ring 5 increases the friction during rotation, enabling the connecting rod 7 to stably remain at the desired angle. The wear-resistant layer 6 reduces wear during rotation, ensuring the stability and reliability of the adjustment. The first bushing 9 and the second bushing 13 achieve multi-angle rotation via the universal joint 12. The universal joint 12 rotates within the through shaft 11, allowing the first bushing 9 and the second bushing 13 to be angled in multiple planes. The fixing nut 10 secures the universal joint 12. By rotating the rotating frame 15, the angle between the adjusting shaft and other equipment can be further adjusted, achieving more flexible multi-angle adjustment.
[0030] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A multi-angle adjustable rotating shaft, comprising a telescopic sleeve rod (1) and an adjusting mechanism arranged at both ends of the telescopic sleeve rod (1), characterized in that: The adjustment mechanism includes sliding rods (2) that are slidably connected to both ends of the inner wall of the telescopic sleeve (1). A connecting rod (7) is fixedly connected to one end of the two sliding rods (2) away from the telescopic sleeve (1). A bearing mechanism is provided on the outer wall of the connecting rod (7). The bearing mechanism includes a limiting sleeve (3) sleeved on the outer wall of the connecting rod (7), and a limiting groove (4) is opened on one side of the limiting sleeve (3). Two rubber rings (5) are fixedly connected to the inner wall of the limiting groove (4). A connecting mechanism is provided at one end of the limiting sleeve (3).
2. The adjustable rotating shaft according to claim 1, wherein, The connecting mechanism includes a bushing (9) fixed to the end of the limiting sleeve (3) away from the connecting rod (7), and both ends of the outer wall of the bushing (9) are penetrated by a through shaft (11).
3. The adjustable swivel according to claim 2, wherein, The inner walls of the multiple through shafts (11) are rotatably connected to cross universal rods (12), and the other two ends of the cross universal rods (12) are connected to bushings (13) through the through shafts (11).
4. The adjustable swivel according to claim 3, wherein, The universal joint (12) is fixedly connected to multiple ends with fixing nuts (10), and the universal joint (12) is located at the center of gravity of bushing one (9) and bushing two (13).
5. The adjustable pivot according to claim 1, wherein, The inner wall of the limiting groove (4) is covered with a wear-resistant layer (6), which is made of rubber.
6. The adjustable pivot according to claim 1, wherein: A connecting block (14) is fixedly connected to one end of each of the two telescopic sleeves (1) away from the connecting rod (7). A rotating frame (15) is fixedly connected to one end of each connecting block (14) away from the telescopic sleeve (1). Multiple rotating frames (15) can be connected through a fixing screw.
7. The adjustable pivot according to claim 1, wherein, A rotating ring (8) is rotatably connected between the two rubber rings (5), and the inner wall of the rotating ring (8) is fixedly connected to the outer wall of the connecting rod (7).