Torsional shaft pin assembly for rehabilitation equipment
By introducing an oil inlet component and a sealing design into the shaft assembly of rehabilitation equipment, the problem of shaft wear is solved, achieving lubrication and protection effects, extending service life and improving stability.
Patent Information
- Application Number
- CN202520643456.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-04-08
AI Technical Summary
Existing rehabilitation equipment uses a rotating shaft assembly that is prone to wear between the fixed rod and the rotating block during prolonged use, which affects its service life.
It adopts a torsion pin assembly, adds lubricating oil through the oil inlet assembly, and uses friction pad and sealing pad design to reduce friction and prevent lubricating oil leakage and external impurities from entering, thus extending service life.
It effectively reduces friction, extends shaft life, reduces wear, prevents lubricant leakage and external impurities from entering, and improves stability and ease of operation.
Smart Images

Figure CN223725150U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a rotating shaft pin technology field especially relates to a twistable shaft pin assembly for rehabilitation equipment. BACKGROUND
[0002] In recent years, the rehabilitation equipment industry has made remarkable development, with the enhancement of people's health consciousness and the acceleration of the aging society process, the demand for various types of rehabilitation equipment continues to rise. Rehabilitation equipment covers a variety of types, including but not limited to auxiliary walking devices, limb exercise equipment, cognitive rehabilitation tools, etc., aiming to help patients recover physical function, improve self-care ability, among the many parts of rehabilitation equipment, shaft pin assembly plays a vital role. It is the key component to realize the relative rotation and connection between the components of the equipment, which directly affects the motion performance, operation convenience and overall stability of the rehabilitation equipment.
[0003] The existing device will produce certain fixed wear between the fixed rod inside the rotating shaft and the rotating block outside when used for a long time, which will cause damage and affect the service life of the rotating shaft, therefore, a twistable shaft pin assembly for rehabilitation equipment is proposed. SUMMARY
[0004] (I) Technical problem solved
[0005] The technical problem solved by the utility model is to provide a twistable shaft pin assembly for rehabilitation equipment which has high practicability and simple structure and can be operated simply, solving the problem of fixed wear between the fixed rod inside the rotating shaft and the rotating block outside when the existing device is used for a long time, which will cause damage and affect the service life of the rotating shaft.
[0006] (II) Technical scheme
[0007] To achieve the above purpose, the utility model is implemented by the following technical scheme: a twistable shaft pin assembly for rehabilitation equipment, comprising a fixed rod, the fixed rod is fixedly connected with a fixed plate on one side, the fixed plate is provided with an oil inlet assembly on one side, the outer side of the fixed rod is provided with a plurality of sealing assemblies, the oil inlet assembly comprises an oil storage box arranged on one side of the fixed plate, an oil inlet pipe is formed on one side of the oil storage box, and a plurality of oil outlet pipes are arranged on the other side of the oil storage box; a plurality of sealing assemblies each comprise a friction pad arranged on the outer side of the fixed rod. The outer side of a plurality of friction pads is fixedly connected with a sealing pad.
[0008] As a further scheme of the utility model, a plurality of flow-through grooves are formed on the outer side of the fixed rod, and a plurality of oil outlet pipes are arranged in the flow-through grooves. Through the arrangement of the flow-through grooves, the lubricating oil can flow.
[0009] As a further scheme of the utility model, the outside of the oil inlet pipe is provided with threads, and a sealing cover is connected to the outside of the oil inlet pipe through threads, which avoids leakage of lubricating oil.
[0010] As a further scheme of the utility model, the outside of the fixed rod is provided with a plurality of groups of rotating blocks, and the plurality of groups of friction pads are all connected to one side of the rotating blocks through lap joint, which enables the mounting plate to rotate.
[0011] As a further scheme of the utility model, one side of each of the plurality of groups of rotating blocks is fixedly connected with a mounting plate, and the surface of each of the plurality of groups of mounting plates is provided with two groups of mounting holes, which fixes the device.
[0012] As a further scheme of the utility model, the other end of the fixed rod is fixedly connected with a positioning plate, and one side of the positioning plate is fixedly connected with a positioning block, which avoids scattering of the device.
[0013] As a further scheme of the utility model, the material of the friction pad is graphite material, and the material of the sealing pad is rubber material, which avoids entry of external water vapor into the device.
[0014] (Three) beneficial effects
[0015] The utility model provides a kind of twistable shaft pin assembly for rehabilitation equipment, with the following beneficial effects:
[0016] 1, the rehabilitation equipment adopts twistable shaft pin assembly, by the setting of oil inlet component, when using, lubricating oil is added to the inside of device by oil inlet pipe, lubricating oil is stored to the inside of oil storage box, enters the inside of flow channel by oil outlet pipe, so as to lubricate between rotating block and fixed rod, make the surface of fixed rod and other components form a layer of lubricating oil film, effectively reduce friction coefficient, reduce wear degree, prolong the service life of shaft pin.
[0017] 2, the rehabilitation equipment adopts twistable shaft pin assembly, by the setting of friction pad and sealing pad, when using, friction pad can increase the friction coefficient of rotating block, so that its movement is subjected to certain resistance, so as to achieve the purpose of shock absorption, adjust movement speed, while sealing pad can avoid lubricating oil from leaking from rotating block interface, secondly still can effectively block the impurities such as dust, moisture of outside into the rotating shaft, avoid impurities to wear, corrosion etc. of rotating shaft and shaft sleeve. DRAWINGS
[0018] Fig. 1It is the overall structure schematic view of the utility model;
[0019] Fig. 2 It is the fixed rod structure schematic view of the utility model;
[0020] Fig. 3 It is the oil inlet assembly structure schematic view of the utility model;
[0021] Fig. 4 It is the sealing assembly structure schematic view of the utility model.
[0022] In the drawing: 1, fixed rod;2, fixed plate;3, oil inlet assembly;301, oil storage box;302, oil inlet pipe;303, oil outlet pipe;4, sealing assembly;401, friction pad;402, sealing pad;5, flow-through groove;6, sealing cover;7, rotating block;8, mounting plate;9, mounting hole;10, positioning plate;11, positioning block. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0024] Please refer to Figs. 1 to 4 The utility model provides a kind of technical scheme: a kind of twistable shaft pin assembly for rehabilitation equipment, including fixed rod 1, the side fixed connection of fixed rod 1 is provided with fixed plate 2, the side of fixed plate 2 is provided with oil inlet assembly 3, by the setting of oil inlet assembly 3, lubrication is carried out between fixed rod 1 and rotating block 7, the outside of fixed rod 1 is provided with several groups of sealing assembly 4, by the setting of sealing assembly 4, avoid outside water vapor into the inside of device, oil inlet assembly 3 includes the oil storage box 301 of being set in the side of fixed plate 2, oil inlet pipe 302 is opened in the side of oil storage box 301, the other side of oil storage box 301 is provided with several groups of oil outlet pipe 303;Several groups of sealing assembly 4 all include the friction pad 401 of being set in the outside of fixed rod 1.Several groups of friction pad 401 all are fixedly connected with sealing pad 402 outside;
[0025] The outside of fixed rod 1 is opened with several groups of flow-through groove 5, several groups of oil outlet pipe 303 are all set in the inside of flow-through groove 5, by the setting of flow-through groove 5, play the role of making that lubricating oil can circulate;
[0026] The outside of oil inlet pipe 302 is opened with thread, sealing cover 6 is connected with the outside thread of oil inlet pipe 302, by the setting of sealing cover 6, play the role of avoiding lubricating oil leakage;
[0027] The outer side of the fixed rod 1 is provided with a plurality of groups of rotating blocks 7, and a plurality of groups of friction pads 401 are connected to one side of the rotating blocks 7 in an overlapping manner.
[0028] One side of each of the plurality of groups of rotating blocks 7 is fixedly connected with a mounting plate 8, and the surface of each of the plurality of groups of mounting plates 8 is provided with two groups of mounting holes 9.
[0029] The other end of the fixed rod 1 is fixedly connected with a positioning plate 10, and one side of the positioning plate 10 is fixedly connected with a positioning block 11.
[0030] The material of the friction pad 401 is graphite material, and the material of the sealing pad 402 is rubber material.
[0031] In the utility model, the working steps of the device are as follows:
[0032] The first step: when in use, the inside of the device is added with lubricating oil through the oil inlet pipe 302, the lubricating oil is stored in the inside of the oil storage box 301, and the oil outlet pipe 303 enters the inside of the flow-through groove 5, so that the rotating block 7 and the fixed rod 1 are lubricated, a layer of lubricating oil film is formed between the surface of the fixed rod 1 and other components, the friction coefficient is effectively reduced, the wear degree is reduced, and the service life of the shaft pin is prolonged.
[0033] The second step: when in use, the friction pad 401 can increase the friction coefficient of the rotating block 7, so that the movement is subjected to certain resistance, so that the purpose of shock absorption and movement speed adjustment is achieved, meanwhile, the sealing pad 402 can prevent the lubricating oil from leaking from the interface of the rotating block 7, and can also effectively prevent the impurities such as dust and water from entering the inside of the rotating shaft, so as to avoid the abrasion and corrosion of the impurities to the rotating shaft and the shaft sleeve.
[0034] The standard parts used in the application can be purchased from the market, and can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art. The mechanical parts and equipment adopt the conventional type in the prior art, and the components known to the person skilled in the art are known to the person skilled in the art through technical manual or conventional experimental method.
[0035] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A swivelable axle pin assembly for rehabilitation equipment comprising a stationary bar (1), characterized in that: One side of the fixed rod (1) is fixedly connected with a fixed plate (2), one side of the fixed plate (2) is provided with an oil inlet assembly (3), the outer side of the fixed rod (1) is provided with a plurality of sealing assemblies (4), The oil inlet assembly (3) comprises an oil storage box (301) arranged on one side of the fixed plate (2), an oil inlet pipe (302) is formed on one side of the oil storage box (301), and a plurality of oil outlet pipes (303) are arranged on the other side of the oil storage box (301); A plurality of sealing assemblies (4) each comprise a friction pad (401) arranged on the outer side of the fixed rod (1), and the outer side of each of the plurality of friction pads (401) is fixedly connected with a sealing pad (402).
2. A swivelable axle pin assembly for a piece of rehabilitation equipment as defined in claim 1, wherein: The outer side of the fixed rod (1) is provided with a plurality of flow grooves (5), and the plurality of oil outlet pipes (303) are arranged in the flow grooves (5).
3. A swivelable axle pin assembly for a rehabilitation device as defined in claim 1, wherein: The outer side of the oil inlet pipe (302) is provided with a thread, and the outer side of the oil inlet pipe (302) is threadedly connected with a sealing cover (6).
4. A swivelable axle pin assembly for a rehabilitation device as defined in claim 1, wherein: The outer side of the fixed rod (1) is provided with a plurality of rotating blocks (7), and the plurality of friction pads (401) are all connected to one side of the rotating blocks (7).
5. A swivelable axle pin assembly for a piece of rehabilitation equipment as defined in claim 4, wherein: The outer side of the fixed rod (1) is provided with a plurality of rotating blocks (7), and the plurality of friction pads (401) are all connected to one side of the rotating blocks (7).
6. A swivelable axle pin assembly for a piece of rehabilitation equipment as defined in claim 1, wherein: The outer side of the fixed rod (1) is provided with a plurality of rotating blocks (7), and the plurality of friction pads (401) are all connected to one side of the rotating blocks (7).
7. A swivelable axle pin assembly for a rehabilitation device as defined in claim 1, wherein: The material of the friction pad (401) is graphite material, and the material of the sealing pad (402) is rubber material.