A handwheel-assisted disassembly device

Abstract

This application provides a handwheel auxiliary disassembly device, including a connector and a grip. The connector is shaped like a frustum, with the bottom surface of the frustum connected to the grip via a connecting rod. The bottom surface of the frustum is hollowed out to accommodate the handwheel. The radial cross-sectional shape of the bottom surface of the frustum matches the shape of the plum blossom-shaped handwheel. The inner wall of the connector in contact with the handwheel is provided with an anti-slip layer, which is made of anti-slip elastic rubber. With this device, simply place the connector vertically downwards onto the handwheel. The bottom surface of the frustum, which mimics the plum blossom shape of the handwheel, will lock the handwheel in place. Combined with the anti-slip elastic rubber wrapping and gripping the handwheel, the handwheels are securely connected. Rotating the grip to apply torque allows the handwheel to be easily loosened. After loosening, simply pull the connector upwards to complete the operation. The process is very convenient. Furthermore, the connector's frustum shape, narrow at the top and wide at the bottom, allows for the insertion of valve handwheels of different diameters, making it widely applicable.

Description

Technical Field

[0001] This utility model relates to the field of handwheel disassembly tools, and more specifically, to a handwheel-assisted disassembly device. Background Technology

[0002] Gas filling bottles are core containers for storing compressed gases in industrial and medical settings. These containers typically consist of a storage bottle made of high-strength alloys or composite materials and a top valve system. The valve handwheel, a key component for human-machine interaction, often adopts a quincunx shape, which allows for easy gripping and manual turning. However, when the valve is over-tightened or mechanical parts age, traditional manual operation often results in the inability to open it.

[0003] In medical emergency scenarios, the opening and closing of oxygen cylinder valves is crucial to the timeliness of life-saving rescues. In intensive care units or emergency rooms, medical staff need to complete oxygen cylinder replacement and valve opening operations within a short timeframe. However, in practice, situations often arise where valves are overtightened, making them difficult to open, sometimes requiring the use of wrenches. Forcing the valve open with wrenches can lead to uneven force application, damaging the valve seal and wasting time. Therefore, developing a specialized auxiliary tool for Phillips-shaped handwheels that provides precise force without damaging the valve structure has become a common requirement in both industrial safety and medical emergency fields.

[0004] Application No. 202110951306.5 discloses an auxiliary opening tool for a valve handwheel, comprising: a hollow screw, with an upper support plate and a lower support plate respectively fitted on the upper and lower sides of the hollow screw; at least two pawls for engaging the handwheel are hinged to the end of the upper support plate, and a support arm is hinged to the middle of each of the at least two pawls; the other end of the support arm is hinged to the end of the lower support plate on the same side; a large spring is provided between the upper and lower support plates; a limiting nut is provided at the bottom of the hollow screw, and a pin is fitted inside the limiting nut; a small spring is provided between the lower part of the pin and the limiting nut; and a limiting device is provided at the top of the pin. This device has a complex structure and cumbersome operation steps, making it impossible to quickly assemble and disassemble. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a handwheel-assisted disassembly device.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A handwheel assisted disassembly device includes a connector and a gripping part. The connector is shaped like a frustum. The bottom surface of the frustum is connected to the gripping part via a connecting rod. The bottom surface of the frustum is hollowed out to accommodate a handwheel. The radially upward cross-sectional shape of the bottom surface of the frustum is consistent with the shape of the plum blossom-shaped handwheel.

[0008] Furthermore, the inner wall of the connector that contacts the handwheel is provided with an anti-slip layer.

[0009] Furthermore, the anti-slip layer is an anti-slip elastic rubber.

[0010] Furthermore, the gripping part is rod-shaped, and the rod-shaped gripping part is arranged perpendicular to the connecting rod.

[0011] Furthermore, the distance from one end of the rod-shaped grip to the vertical foot of the connecting rod and the grip is greater than or equal to the diameter of the lower bottom surface of the frustum.

[0012] Furthermore, the gripping part is disc-shaped, and the center of the disc is connected to the connecting rod.

[0013] Furthermore, the diameter of the disk is greater than or equal to the diameter of the lower base of the frustum.

[0014] Furthermore, the diameter of the lower base of the frustum is 80mm to 90mm.

[0015] Furthermore, the frustum-shaped connector has a frustum angle of 40–80°.

[0016] Furthermore, the connecting rod is connected to the connector and the grip by welding.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model has a simple structure and is very convenient to use. Simply put the connector on the handwheel and rotate the grip to loosen valves that are difficult to open manually. In addition, the connector of this device is designed as a frustum shape that is narrow at the top and wide at the bottom, so valve handwheels of different diameters can be inserted into the connector for operation, making it widely applicable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the device structure in this application;

[0020] Figure 2 This is a schematic diagram of the device and valve handwheel structure of this application;

[0021] Figure 3 This is a schematic diagram of the valve handwheel in this application;

[0022] Figure 4 This is a schematic diagram of the gripping part structure in Embodiment 2 of this application;

[0023] The components are: 1. grip; 2. connecting rod; 3. connector; 4. handwheel. Detailed Implementation

[0024] To clearly illustrate the technical features of this utility model, the following detailed description is provided through specific embodiments and in conjunction with the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0026] Furthermore, in the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] Example 1

[0030] like Figures 1 to 4 As shown in the figure, this embodiment provides a handwheel auxiliary disassembly device, including a connector 3 and a gripping part 1. The connector 3 is shaped like a frustum. The bottom surface of the frustum is connected to the gripping part through a connecting rod. The bottom surface of the frustum is hollowed out to accommodate the handwheel 4. The inner wall of the connector 3 in contact with the handwheel 4 is provided with an anti-slip layer, which is an anti-slip elastic rubber. The radial upper cross-section of the bottom surface of the frustum is consistent with the shape of the plum blossom-shaped handwheel 4. The connector 3 is designed as a frustum shape that is narrow at the top and wide at the bottom. Valve handwheels 4 of different diameters can be inserted into the connector 3 for operation. When the handwheel 4 is fitted into the connector 3, the anti-slip elastic rubber will wrap around and grip the plum blossom-shaped handwheel 4, increasing the friction between the two and transmitting torque at the same time.

[0031] The gripping part 1 is rod-shaped and is perpendicular to the connecting rod. The distance from one end of the rod-shaped gripping part to the perpendicular foot of the connecting rod and the gripping part is greater than or equal to the diameter of the bottom surface of the frustum. This distance is actually the lever arm length of the device. The lever arm length is greater than the diameter of the bottom surface of the frustum. The diameter of the bottom surface of the frustum is greater than the diameter of the handwheel. Therefore, the lever arm of the device in this embodiment is greatly increased compared to the lever arm when turning by hand, thereby increasing the torque to loosen the handwheel.

[0032] The operation of this device is simple and straightforward. First, align connector 3 with handwheel 4 and slide it downwards. The plum blossom-shaped contour structure at the bottom of the connector precisely engages with the handwheel groove, and its truncated cone bottom surface fits snugly against the edge of the handwheel, forming a stable basic connection. Simultaneously, the anti-slip elastic rubber inside the connector fully wraps around the handwheel surface, firmly gripping it and ensuring no slippage or loosening during operation. Next, grasp the rod-shaped grip 1 and rotate it to transfer torque to the handwheel. Even with an overly tight handwheel, it can be easily loosened. Once the handwheel is loosened, simply pull upwards gently to detach the connector. The entire process is extremely convenient and greatly improves operational efficiency.

[0033] The device has a simple structure and occupies little space, making it convenient for operators to use in confined spaces. For example, when an oxygen cylinder is placed in a corner or in a narrow ambulance, the operator can operate it directly by attaching the device to the handwheel without moving the cylinder. Furthermore, the grip part of the device can be held with one hand or two hands, greatly increasing its portability and applicability.

[0034] Example 2

[0035] like Figures 1 to 4 As shown in the figure, this embodiment provides a handwheel auxiliary disassembly device, including a connector 3 and a gripping part 1. The connector 3 is shaped like a frustum. The bottom surface of the frustum is connected to the gripping part through a connecting rod. The bottom surface of the frustum is hollowed out to accommodate the handwheel 4. The inner wall of the connector 3 in contact with the handwheel 4 is provided with an anti-slip layer, which is an anti-slip elastic rubber. The radial upper cross-section of the bottom surface of the frustum is consistent with the shape of the plum blossom-shaped handwheel 4. The connector 3 is designed as a frustum shape that is narrow at the top and wide at the bottom. Valve handwheels 4 of different diameters can be inserted into the connector 3 for operation. When the handwheel 4 is fitted into the connector 3, the anti-slip elastic rubber will wrap around and grip the plum blossom-shaped handwheel 4, increasing the friction between the two and transmitting torque at the same time.

[0036] Unlike Example 1, such as Figure 4 As shown, the gripping part 1 in this embodiment is disc-shaped, and the center of the disc is connected to the connecting rod 2. The diameter of the disc is greater than or equal to the diameter of the bottom surface of the frustum. The radius of the disc is the lever arm length, which is much longer than the lever arm when turning by hand, thereby increasing the torque to loosen the handwheel.

[0037] The operation of this device is simple and straightforward. First, align connector 3 with handwheel 4 and slide it downwards. The plum blossom-shaped contour structure at the bottom of the connector precisely engages with the handwheel groove, and its truncated cone bottom surface fits snugly against the edge of the handwheel, forming a stable basic connection. Simultaneously, the anti-slip elastic rubber inside the connector fully wraps around the handwheel surface, firmly gripping it and ensuring no slippage or loosening during operation. Next, grasp the disc-shaped grip 1 and rotate it to transfer torque to the handwheel. Even with an overly tight handwheel, it can be easily loosened. Once the handwheel is loosened, simply pull upwards gently to detach the connector. The entire process is extremely convenient and greatly improves operational efficiency.

[0038] Example 3

[0039] like Figures 1 to 4As shown in the figure, this embodiment provides a handwheel auxiliary disassembly device, including a connector 3 and a gripping part 1. The connector 3 is shaped like a frustum. The bottom surface of the frustum is connected to the gripping part through a connecting rod. The bottom surface of the frustum is hollowed out to accommodate the handwheel 4. The inner wall of the connector 3 in contact with the handwheel 4 is provided with an anti-slip layer, which is an anti-slip elastic rubber. The radial upper cross-section of the bottom surface of the frustum is consistent with the shape of the plum blossom-shaped handwheel 4. The connector 3 is designed as a frustum shape that is narrow at the top and wide at the bottom. Valve handwheels 4 of different diameters can be inserted into the connector 3 for operation. When the handwheel 4 is fitted into the connector 3, the anti-slip elastic rubber will wrap around and grip the plum blossom-shaped handwheel 4, increasing the friction between the two and transmitting torque at the same time.

[0040] Specifically, the diameter of the lower surface of the frustum is 80mm to 90mm, which can be adapted to fit common plum blossom-shaped handwheels (50 to 70mm) on the market. The angle of the frustum is 40 to 80°. After it is fitted, the angle can better restrict the handwheel from sliding and reduce the risk of slippage.

[0041] The gripping part 1 is rod-shaped and is perpendicular to the connecting rod. The distance from one end of the rod-shaped gripping part to the perpendicular foot of the connecting rod and the gripping part is greater than or equal to the diameter of the bottom surface of the frustum. This distance is actually the lever arm length of the device. The lever arm length is greater than the diameter of the bottom surface of the frustum. The diameter of the bottom surface of the frustum is greater than the diameter of the handwheel. Therefore, the lever arm of the device in this embodiment is greatly increased compared to the lever arm when turning by hand, thereby increasing the torque to loosen the handwheel.

[0042] The operation of this device is simple and straightforward. First, align connector 3 with handwheel 4 and slide it downwards. The plum blossom-shaped contour structure at the bottom of the connector precisely engages with the handwheel groove, and its truncated cone bottom surface fits snugly against the edge of the handwheel, forming a stable basic connection. Simultaneously, the anti-slip elastic rubber inside the connector fully wraps around the handwheel surface, firmly gripping it and ensuring no slippage or loosening during operation. Next, grasp the rod-shaped grip 1 and rotate it to transfer torque to the handwheel. Even with an overly tight handwheel, it can be easily loosened. Once the handwheel is loosened, simply pull upwards gently to detach the connector. The entire process is extremely convenient and greatly improves operational efficiency.

[0043] Obviously, the above-described embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A handwheel-assisted disassembly device, characterized in that, It includes a connector and a grip. The connector is shaped like a frustum. The bottom surface of the frustum is connected to the grip via a connecting rod. The bottom surface of the frustum is hollowed out to accommodate a handwheel. The radial cross-sectional shape of the bottom surface of the frustum is consistent with the shape of the plum blossom-shaped handwheel.

2. The handwheel-assisted disassembly device according to claim 1, characterized in that, The inner wall of the connector that contacts the handwheel is provided with an anti-slip layer.

3. The handwheel-assisted disassembly device according to claim 2, characterized in that, The anti-slip layer is made of anti-slip elastic rubber.

4. The handwheel-assisted disassembly device according to claim 1, characterized in that, The gripping part is rod-shaped and is perpendicular to the connecting rod.

5. The handwheel-assisted disassembly device according to claim 4, characterized in that, The distance from one end of the rod-shaped grip to the foot of the connecting rod and the grip is greater than or equal to the diameter of the lower bottom surface of the frustum.

6. The handwheel-assisted disassembly device according to claim 1, characterized in that, The gripping part is disc-shaped, and the center of the disc is connected to the connecting rod.

7. A handwheel-assisted disassembly device according to claim 6, characterized in that, The diameter of the disk is greater than or equal to the diameter of the lower base of the frustum.

8. The handwheel-assisted disassembly device according to claim 1, characterized in that, The diameter of the lower base of the frustum is 80mm to 90mm.

9. A handwheel-assisted disassembly device according to claim 1, characterized in that, The frustum-shaped connector has a frustum angle of 40 to 80°.

10. A handwheel-assisted disassembly device according to claim 1, characterized in that, The connecting rod is connected to the connector and the grip by welding.

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