An adjustable gua sha device

Abstract

The utility model discloses an adjustable scraping device relates to traditional chinese medical science physiotherapy appliance technical field. The device includes handle and scraper, and the scraper is rotatedly connected with the handle through the locating disc, and the locating disc is located between the two pin joint rings of handle end part setting, and the pin joint ring is equipped with the positioning mechanism, is used for realizing the angle positioning and locking between the scraper and handle. The positioning mechanism includes locating post, locking block, spring, press column and limit cap, and the locating post is through the pin joint ring with the locating disc, and the locking block is clamped into the inclined slot of locating disc under the action of spring and realizes the positioning, and through pressing the pressing disc, makes the locking block and the inclined slot separate, thereby completes the angle adjustment. The device stable structure, the adjustment is convenient, can be according to the different part requirement flexible adjustment scraper angle, promotes the adaptability and the comfort of scraping operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of traditional Chinese medicine physiotherapy equipment, specifically relating to an adjustable scraping device. Background Technology

[0002] Gua sha, a traditional external therapy in Traditional Chinese Medicine, has the effects of promoting blood circulation, removing blood stasis, clearing meridians, and relieving fatigue. It is widely used in home physiotherapy, rehabilitation departments of medical institutions, and health care facilities. Most existing gua sha devices are one-piece structures, typically consisting of a gua sha board made of copper, jade, plastic, or synthetic resin. Some products are handheld, while others have a simple handle design. Although these traditional gua sha boards are easy to operate and have low manufacturing costs, they have also revealed many problems in actual use.

[0003] Currently, most gua sha devices on the market suffer from a lack of adjustable scraping blade angles. Because the skin curvature varies across different parts of the body, users often need to frequently change their wrist angle or adjust their body posture to adapt to the fixed angle of the scraping blade when performing gua sha on areas such as the back, limbs, and neck. This not only increases the difficulty of operation but also easily leads to hand fatigue and reduces the therapeutic effect. This problem of poor adaptability and low comfort is particularly pronounced for non-professionals or home users.

[0004] To address the aforementioned issues, some improved products have attempted to add a rotating connection structure between the scraping board and the handle, allowing the scraping board to rotate within a certain range and thus improving its adaptability. However, existing adjustable structures mostly employ simple friction hinges or ball joints, lacking effective angle positioning and locking mechanisms. This makes them prone to loosening and slippage during use, affecting operational stability and force transmission efficiency. Furthermore, while some products do have angle adjustment capabilities, their complex structures and difficult assembly require tools for disassembly and reassembly, hindering quick adjustment and routine maintenance. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an adjustable scraping device that can achieve adjustable angle and has reliable positioning and locking functions, so as to improve the ease of operation and stability during the scraping process and enhance its adaptability to different usage scenarios and individual needs.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An adjustable scraping device includes a handle, one end of which is rotatably connected to a scraper; one end of the handle is symmetrically and fixedly connected to pin rings, and a positioning plate is fixedly connected to the middle of the tail of the scraper, with the positioning plate located between the two pin rings.

[0008] One side of one of the pin rings is connected to a first limiting cover, and one side of the other pin ring is connected to a second limiting cover.

[0009] A positioning mechanism is inserted into the pin ring, which is used to limit the angle between the scraper and the handle.

[0010] Furthermore, the positioning mechanism includes a positioning post that passes through the pin ring and the positioning disc, and a locking block is provided on the positioning post;

[0011] A positioning hole is provided through the center of the side of the positioning plate, and a positioning pin passes through the positioning hole;

[0012] A slanted groove is provided at one end of the positioning hole;

[0013] The locking block can be inserted into the inclined groove.

[0014] Furthermore, the locking block is shaped like a frustum, and a locking strip is fixedly connected to the outer side of the locking block, with the locking strip evenly distributed around the central axis of the locking block;

[0015] The inclined groove has a locking groove inside that corresponds to the locking strip;

[0016] The locking strip can be embedded into the locking slot.

[0017] Furthermore, a spring is fitted on the positioning post, with one end of the spring abutting against the side of the locking block and the other end of the spring abutting against the first limiting cover; when not subjected to external force, the locking strip is embedded into the locking groove under the elastic force of the spring.

[0018] Furthermore, the first limiting cover is connected to the pin ring by a threaded connection, and a through hole is provided at the center of the side of the first limiting cover, with one end of the positioning pin inserted into the through hole.

[0019] Furthermore, a pressing post is inserted into one end of the positioning post;

[0020] The second limiting cover is connected to the pin ring by a threaded connection, and a through groove is provided through the center of the side of the second limiting cover. The cross-section of the through groove is set as a regular polygon.

[0021] The pressing column passes through the through groove.

[0022] Furthermore, one end of the positioning post is provided with an insertion groove, into which the pressing post is inserted.

[0023] Furthermore, a pressing plate is fixedly connected to one end of the pressing column;

[0024] Pressing the pressing plate will cause the locking block to separate from the inclined groove.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] This invention features a scraper at one end of the handle, with a positioning disc connected to the middle of the scraper's tail. The positioning disc is placed between two pin rings, forming a rotatable structure that allows the scraper to be adjusted around its axis. Furthermore, by setting a positioning mechanism within the pin rings, the relative angle between the scraper and the handle is limited and positioned. This effectively solves the problem that existing fixed-structure scraping boards cannot adapt to the curvature of different body parts, thereby improving the fit and comfort during scraping and reducing the burden on the user's wrist.

[0027] The positioning mechanism includes a positioning post that passes through the positioning disc and the pin ring. The positioning post is equipped with a locking block. The frustum structure of the locking block cooperates with the inclined groove and the locking groove set on the side wall of the positioning disc. Under the thrust of the spring, the locking block can be stably embedded in the locking groove to complete the positioning. This structure can realize multi-level adjustment and accurate locking of the scraper angle, effectively avoiding problems such as loose positioning and angle drift in existing friction structures, and enhancing the stability and safety of operation.

[0028] By setting a pressing column and a pressing plate at one end of the positioning column, the operator only needs to press manually to separate the locking block from the inclined groove, thereby quickly adjusting the scraper angle. This structure avoids the complicated steps of disassembling and assembling parts or using tools required by traditional angle adjustment mechanisms, achieving quick unlocking and reset, and improving the ease of use and flexibility of the scraping device.

[0029] The first and second limiting covers are respectively installed on both sides of the pin ring by threads, forming a closed limiting protection structure for the positioning mechanism. This can effectively prevent the positioning pin, spring, locking block and other components from loosening or shifting during long-term use, enhance the structural stability and durability of the overall device, and further adapt to the needs of home and high-frequency physiotherapy use. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the handle of this utility model;

[0033] Figure 4 This is a schematic diagram of the scraper structure of this utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the first limiting cover of this utility model;

[0035] Figure 6This is a schematic diagram of the structure of the second limiting cover of this utility model;

[0036] Figure 7 This is a schematic diagram of the positioning mechanism of this utility model.

[0037] The attached diagram lists the components represented by each number as follows:

[0038] 1. Handle;

[0039] 11. Pin joint;

[0040] 2. Scraper;

[0041] 21. Positioning plate; 211. Positioning hole; 22. Inclined groove; 221. Locking groove;

[0042] 3. First limiting cover; 31. Through hole;

[0043] 4. Second limiting cover; 41. Through groove;

[0044] 5. Positioning mechanism;

[0045] 51. Positioning pin; 511. Insertion slot; 52. Pressing pin; 521. Pressing plate; 53. Locking block; 531. Locking strip; 54. Spring. Detailed Implementation

[0046] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0047] See Figure 1-7An adjustable scraping device includes a handle 1, with a scraper 2 rotatably connected to one end of the handle 1; pin rings 11 are symmetrically fixedly connected to one end of the handle 1, and the pin rings 11 are symmetrically arranged and firmly connected to both sides of the end of the handle 1 to ensure sufficient support stability of the scraper 2 when adjusting the angle; a positioning disc 21 is fixedly connected to the middle of the tail of the scraper 2, the positioning disc 21 has a circular structure, and its axis is perpendicular to the scraper 2. The positioning disc 21 is connected to the scraper 2 through a central fixed shaft to ensure that the scraper 2 rotates as a whole during rotation; the positioning disc 21 is located between the two pin rings 11, forming a good... The device includes a rotation space and a limiting protection structure. One side of a pin-connecting ring 11 is connected to a first limiting cover 3, which is threaded onto the outside of the pin-connecting ring 11 to provide lateral fixed support for the positioning mechanism 5. The other side of the pin-connecting ring 11 is connected to a second limiting cover 4, which is symmetrically arranged with the first limiting cover 3 and is installed by thread fixing. The positioning mechanism 5 is inserted into the pin-connecting ring 11. The positioning mechanism 5 includes multiple components for angle adjustment, positioning, and locking. The positioning mechanism 5 is used to limit the angle between the scraper 2 and the handle 1, improving the adaptability and stability of the device during use.

[0048] See Figure 2 , Figure 4 and Figure 7 The positioning mechanism 5 includes a positioning post 51 that passes through the pin-connecting ring 11 and the positioning disk 21. The positioning post 51 has a hollow structure and its outer surface is a smooth cylindrical surface, suitable for sliding adjustment and locking operation. A locking block 53 is provided on the positioning post 51. The locking block 53 is fixed on the side of the positioning post 51 away from the pressing end and is used to cooperate with the positioning disk 21 for angle positioning. A positioning hole 211 is provided through the center of the side of the positioning disk 21. The positioning hole 211 has a high degree of fit with the outer diameter of the positioning post 51 to ensure no obvious shaking during sliding. The positioning post 51 passes through the positioning hole 211, so that the positioning mechanism 5 and the scraper 2 are structurally connected. A slanted groove 22 is provided at one end of the positioning hole 211. The slanted groove 22 is arranged radially and has an inwardly tapered opening shape, which is used to cooperate with the structure on the locking block 53 for positioning. The locking block 53 can be inserted into the slanted groove 22 to achieve angle locking through cooperation.

[0049] See Figure 4 and Figure 7The locking block 53 is shaped like a frustum, which can smoothly slide into the inclined groove 22 under the thrust of the spring 54. A locking strip 531 is fixedly connected to the outer side of the locking block 53. Multiple locking strips 531 are evenly distributed along the circumference of the frustum, forming an evenly spaced arrangement. The cross-section of the locking strip 531 is rectangular. The locking strips 531 are evenly distributed around the central axis of the locking block 53, increasing the fitting accuracy with the inclined groove 22. The inclined groove 22 has a corresponding slot 221 inside, which is a groove structure, and its shape and size match the locking strip 531. The locking strip 531 can be embedded into the slot 221 to achieve positioning and fixing, preventing the scraper 2 from shifting angle during use.

[0050] See Figure 4 and Figure 7 A spring 54 is fitted on the positioning post 51. The spring 54 is a helical compression spring made of metal material, which is highly elastic and durable. One end of the spring 54 abuts against the side of the locking block 53, and the locking block 53 is in the initial positioning state through the pushing force. The other end of the spring 54 abuts against the first limit cover 3, forming a reverse support to ensure that the spring 54 always provides continuous pressure when under force. When there is no external force, the locking strip 531 is embedded into the locking groove 221 under the elastic compression of the spring 54, thereby achieving a stable angular positioning between the scraper 2 and the handle 1.

[0051] See Figure 2 , Figure 5 and Figure 7 The first limiting cover 3 is connected to the pin ring 11 by a threaded connection. The inner wall of the limiting cover is provided with an internal thread that matches the thread of the pin ring 11, which is used for fastening and limiting the external sliding of the positioning post 51. A through hole 31 is provided through the center of the side of the first limiting cover 3. The through hole 31 has a circular structure and the diameter of the through hole 31 is slidably fitted with the positioning post 51. One end of the positioning post 51 is inserted into the through hole 31 to ensure that the positioning post 51 can move freely in and out of the limiting cover, which is convenient for the pressing mechanism to work.

[0052] See Figure 2 , Figure 6 and Figure 7 One end of the positioning post 51 is inserted with a pressing post 52. The pressing post 52 is a long strip-shaped component made of hard plastic or metal, which has strong bending resistance. The second limiting cover 4 is connected to the pin ring 11 by a threaded connection. The second limiting cover 4 also has a threaded hole inside, which is threaded and fastened to the pin ring 11. A through groove 41 is opened through the center of the side of the second limiting cover 4. The cross-section of the through groove 41 is set as a regular polygon, usually a regular hexagon, to ensure that the pressing post 52 does not rotate during sliding. The pressing post 52 passes through the through groove 41 and can move along the through groove axis to drive the internal structure to move.

[0053] See Figure 7 One end of the positioning post 51 is provided with an insertion groove 511. The insertion groove 511 is a rectangular groove structure with an internal recess, which is used to insert the tail end of the pressing post 52. The pressing post 52 is inserted into the insertion groove 511 and fixed by interference fit or adhesive, so that the pressing post 52 can drive the overall structure inside the positioning post 51 to move.

[0054] See Figure 4 and Figure 7 One end of the pressing column 52 is fixedly connected to a pressing plate 521. The pressing plate 521 has a disc-shaped structure with a diameter larger than the aperture of the through groove 41, which is used to provide a force-bearing surface for the operating fingers. The outer edge of the pressing plate 521 is provided with anti-slip protrusions to improve stability when pressing. Pressing the pressing plate 521 can separate the locking block 53 from the inclined groove 22, so that the scraper 2 can rotate freely in an unrestricted state to complete the angle adjustment function.

[0055] The working principle of this utility model is as follows:

[0056] In use, the operator holds the handle 1 and drives the scraper 2 to move across the skin surface through the end of the handle 1 to achieve the scraping function. The tail of the scraper 2 is installed in conjunction with two pin rings 11 at the end of the handle 1 through a positioning plate 21, which achieves a rotatable connection.

[0057] To enable the angle between the scraper 2 and the handle 1 to be adjustable, a positioning hole 211 is provided in the middle of the positioning disk 21. A slanted groove 22 for limiting and positioning is also provided on one side of the positioning hole 211, and a locking groove 221 is opened in the slanted groove 22. The positioning mechanism 5 is set between the pin ring 11 and the positioning disk 21, and is mainly used to realize the angle positioning and locking functions.

[0058] The positioning pin 51 in the positioning mechanism 5 passes through the positioning hole 211 and is inserted into the through hole 31 on the first limiting cover 3. One end of the positioning pin 51 is connected to the pressing pin 52 through the insertion groove 511. The pressing pin 52 further passes through the through groove 41 on the second limiting cover 4 and is connected to the pressing plate 521. The cross-section of the through groove 41 is a regular polygon structure, which allows the pressing pin 52 to slide stably and avoids rotational misalignment.

[0059] A locking block 53 is fixedly installed on the positioning post 51. Multiple locking strips 531 are provided on the outer wall of the locking block 53. The locking strips 531 cooperate with the locking grooves 221 inside the inclined groove 22. Under the elastic action of the spring 54, the locking block 53 is continuously pushed, and the locking strips 531 automatically engage in the locking grooves 221, thereby achieving stable positioning of the scraper 2 and the handle 1 at a preset angle.

[0060] When the operating angle of the scraper 2 needs to be adjusted, the operator presses the pressing plate 521, causing the locking block 53 to move inward along the positioning post 51 and disengage from the inclined groove 22, thereby releasing the angle restriction. Subsequently, the rotation angle of the scraper 2 can be adjusted as needed. When the pressing plate 521 is released, the spring 54 pushes the locking block 53 back to its original position, and the locking strip 531 re-engages into the locking groove 221 in the inclined groove 22, achieving a new angle positioning.

[0061] In addition, to ensure the structural stability of the positioning structure during high-frequency use, the first limiting cover 3 and the second limiting cover 4 are fastened to both sides of the pin ring 11 by means of threads, ensuring the assembly firmness and stress reliability of the entire positioning mechanism 5 during use.

[0062] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. An adjustable scraping device, characterized in that: Includes a handle (1), one end of which is rotatably connected to a scraper (2); one end of the handle (1) is symmetrically fixedly connected to a pin ring (11), and a positioning disk (21) is fixedly connected to the middle of the tail of the scraper (2), with the positioning disk (21) located between the two pin rings (11); One side of one of the pin rings (11) is connected to a first limiting cover (3), and one side of the other pin ring (11) is connected to a second limiting cover (4). A positioning mechanism (5) is inserted into the pin ring (11), which is used to limit the angle between the scraper (2) and the handle (1).

2. The adjustable scraping device according to claim 1, characterized in that: The positioning mechanism (5) includes a positioning post (51) that passes through the pin ring (11) and the positioning disk (21), and a locking block (53) is provided on the positioning post (51); A positioning hole (211) is provided through the center of the side of the positioning plate (21), and a positioning pin (51) passes through the positioning hole (211); A slanted groove (22) is provided at one end of the positioning hole (211); The locking block (53) can be inserted into the inclined groove (22).

3. An adjustable scraping device according to claim 2, characterized in that: The locking block (53) is shaped like a frustum, and a locking strip (531) is fixedly connected to the outer side of the locking block (53). The locking strip (531) is evenly distributed around the central axis of the locking block (53). The inclined groove (22) has a corresponding locking groove (221) inside, which corresponds to the locking strip (531); The locking strip (531) can be embedded in the locking slot (221).

4. An adjustable scraping device according to claim 3, characterized in that: A spring (54) is fitted on the positioning post (51). One end of the spring (54) abuts against the side of the locking block (53), and the other end of the spring (54) abuts against the first limiting cover (3). When not subjected to external force, the locking strip (531) is embedded into the locking groove (221) under the elastic pressure of the spring (54).

5. An adjustable scraping device according to claim 4, characterized in that: The first limiting cover (3) is connected to the pin ring (11) by a threaded connection, and a through hole (31) is provided at the center of the side of the first limiting cover (3), and one end of the positioning pin (51) is inserted into the through hole (31).

6. An adjustable scraping device according to claim 2, characterized in that: One end of the positioning post (51) is inserted into a pressing post (52); The second limiting cover (4) is connected to the pin ring (11) by a threaded connection, and a through groove (41) is provided through the center of the side of the second limiting cover (4), and the cross section of the through groove (41) is set as a regular polygon; The pressing column (52) passes through the through groove (41).

7. An adjustable scraping device according to claim 6, characterized in that: One end of the positioning post (51) is provided with a plug groove (511), and the pressing post (52) is inserted into the plug groove (511).

8. An adjustable scraping device according to claim 7, characterized in that: One end of the pressing column (52) is fixedly connected to the pressing plate (521); Pressing the pressing plate (521) can separate the locking block (53) from the inclined groove (22).

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