Foldable handle for medical foot switch

Abstract

The utility model relates to a foldable handle for a medical foot switch. Comprising a switch shell, a handle capable of moving the position of the switch shell, a screw limiting the rotation center of the handle, a first gasket adjusting the friction force when the handle rotates, and a second gasket preventing the friction force of the first gasket to the screw from being too large. The third gasket is used for buffering the side wall of the handle and generating a damping effect when the handle rotates; the nut is used for limiting the position of the screw; the screw passes through the handle, and the threaded end of the screw is in threaded connection with the switch housing. The third gasket sleeves the screw and is located between the handle and the switch shell; the first gasket and the second gasket are sleeved on the screw; the first gasket makes contact with the side wall of the handle. The problems that the device is complex in structure, large in size and weight and relatively high in manufacturing cost are solved. At present, a fixed handle is commonly used in China, and a solution which is simple in structure, small in size, light in weight and low in cost is lacked.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical foot switch field especially relates to a kind of foldable handle for medical foot switch. BACKGROUND

[0002] In prior art, in modern medical operation, surgical power system is often assisted by medical foot switch to free doctors' hands, so as to carry out fine operation operation. Since the position of foot switch can be adjusted at any time during operation, the foot switch is generally provided with a handle, so that the doctor can hook the handle with his foot to move the foot switch. However, the conventional foot switch handle is fixed, which results in large overall volume and cannot be folded and packed. Some medical foot switches use a structure in which a spring hook cooperates with a handle rod, and a fixed lifting device is installed to enable the handle to be flattened during packing and transportation. However, the device has a complex structure, large volume and weight, and relatively high manufacturing cost. At present, fixed handles are commonly used in China, and there is a lack of a simple, small, light and low-cost solution. SUMMARY

[0003] The present application provides a foldable handle for medical foot switch, which solves the problem of complex device structure, large volume and weight, and relatively high manufacturing cost in the prior art. At present, fixed handles are commonly used in China, and there is a lack of a simple, small, light and low-cost solution.

[0004] The technical solutions adopted by the embodiments of the present application are as follows.

[0005] A foldable handle for medical foot switch includes a switch housing, a handle that can move the position of the switch housing, a screw that limits the rotation center of the handle, a first gasket that adjusts the friction when the handle rotates, a second gasket that prevents the first gasket from generating excessive friction on the screw, a third gasket that buffers the side wall of the handle and generates a damping effect when the handle rotates, and a nut that limits the position of the screw. The screw is provided in the handle, and the threaded end of the screw is threadedly connected to the switch housing. The third gasket is sleeved on the screw, and the third gasket is located between the handle and the switch housing. The first gasket and the second gasket are both sleeved on the screw. The first gasket is in contact with the side wall of the handle. The second gasket corresponds to the countersunk head of the screw. When the nut is threadedly connected to the screw and the nut is in contact with the switch housing, the nut limits the position of the screw.

[0006] As a further improvement of the above technical solution: the first gasket is a pom gasket.

[0007] As a further improvement of the above technical solution: the second gasket is a butterfly gasket.

[0008] As a further improvement to the above technical solution: the third gasket is a flat gasket.

[0009] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0010] 1. By using a screw to compress the second washer, the elasticity of the second washer applies clamping force to the handle, making the handle tightly adhere to the third washer, thus achieving a damping and buffering effect. The nut is used to fix the hand-tightening screw. The first washer, with its self-lubricating function, reduces the friction of the second washer on the hand-tightening screw. In this way, the hand-tightening screw will not move when the handle is bent, which can ensure the clamping force for a long time and ensure a certain damping and fixing effect when folding the handle. When assembling this foldable handle for medical foot switch, first install the third washer in the corresponding position on the switch housing, then place the second washer, then place the handle on top of the second washer, then install the first washer, then screw in the hand-tightening screw and adjust its compression degree on the second washer until the handle obtains a suitable clamping force and damping effect. Finally, install the nut to fix the position of the screw, thus realizing the adjustment of the handle position according to the state during transportation or use, solving the problems of large size, inability to fold, and high cost of complex structure handles in traditional medical foot switch handles. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the foldable handle for a foot pedal switch used in traditional Chinese medicine according to this utility model.

[0012] In the diagram: 1. Switch housing; 2. Handle; 3. Screw; 4. First washer; 5. Second washer; 6. Third washer; 7. Nut. Detailed Implementation

[0013] This application provides a foldable handle for a medical foot switch, solving the problems of complex device structures, large size and weight, and relatively high manufacturing costs in the prior art. Furthermore, currently, fixed handles are commonly used in China, lacking a solution that is simple in structure, small in size, lightweight, and inexpensive.

[0014] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows:

[0015] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0016] The utility model provides a foldable handle for medical foot switch, which comprises a switch shell 1, a handle 2 that can move the position of the switch shell 1, a screw 3 that limits the rotation center of the handle 2, a first gasket 4 that adjusts the friction when the handle 2 rotates, a second gasket 5 that prevents the first gasket 4 from generating excessive friction on the screw 3, a third gasket 6 that buffers the side wall of the handle 2 and generates damping effect when the handle 2 rotates, and a nut 7 that limits the position of the screw 3; the screw 3 is arranged in the handle 2, and the threaded end of the screw 3 is threadedly connected to the switch shell 1; the third gasket 6 is sleeved on the screw 3 and located between the handle 2 and the switch shell 1; the first gasket 4 and the second gasket 5 are both sleeved on the screw 3; the first gasket 4 is in contact with the side wall of the handle 2; the second gasket 5 corresponds to the countersunk head of the screw 3; and the nut 7 is threadedly connected to the screw 3, and when the nut 7 is in contact with the switch shell 1, the nut 7 limits the position of the screw 3.

[0017] The first gasket 4 is a pom gasket.

[0018] The second gasket 5 is a butterfly gasket.

[0019] The third gasket 6 is a flat gasket.

[0020] The screw 3 exerts clamping force on the handle 2 by compressing the second gasket 4 and using the elastic force of the second gasket 5, so that the handle 2 tightly adheres to the third gasket 6, thereby achieving damping and buffering effect; the nut 6 is used to fix the hand-tightened screw 3, the first gasket 4 reduces the friction between the second gasket 5 and the hand-tightened screw 3 by virtue of its self-lubricating function, so that the hand-tightened screw 3 does not move when the handle 2 is bent, thereby long-term ensuring clamping force and ensuring certain damping fixing effect when the handle 2 is folded; when assembling the foldable handle for medical foot switch, first, the third gasket 6 is installed at the corresponding position of the switch shell 1, then the second gasket 5 is placed, then the handle 2 is placed above the second gasket 5, then the first gasket 4 is installed, then the hand-tightened screw 3 is screwed in and the compression degree of the second gasket 5 is adjusted, until the handle 2 obtains appropriate clamping force and damping effect, and finally the nut 7 is installed to fix the position of the screw 3.

[0021] The screw 3 is used to compress the second gasket 4, the second gasket 5 is used to exert the clamping force on the handle 2, the handle 2 is tightly attached to the third gasket 6, and the damping and buffering effect is realized; the nut 6 is used to fix the hand screw 3, the first gasket 4 is used to reduce the friction between the second gasket 5 and the hand screw 3 by virtue of the self-lubricating function, so that the hand screw 3 does not move when the handle 2 is bent, the clamping force can be long-acting ensured, and the certain damping fixing effect is ensured when the handle 2 is folded; when the foldable handle of the medical foot switch is assembled, the third gasket 6 is first installed at the corresponding position of the switch shell 1, then the second gasket 5 is placed, then the handle 2 is placed on the second gasket 5, then the first gasket 4 is installed, then the hand screw 3 is screwed in and the compression degree of the second gasket 5 is adjusted, until the handle 2 obtains the appropriate clamping force and damping effect, finally the nut 7 is installed to fix the position of the screw 3, and the position of the handle is adjusted according to the state of transportation or use, the problems of large volume, non-folding and high cost of the complex structure of the traditional medical foot switch handle are solved.

[0022] In use, when the foot switch needs to be moved, the doctor can hook the handle 5 with the foot to unfold it and move the foot switch to the appropriate position. When the foot switch needs to be stored or transported, the handle 5 can be folded, at this time, due to the elasticity of the butterfly gasket 4 and the pom flat gasket 3, the handle 5 can be kept in the folded state and will not loosen at will.

[0023] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including all changes and modifications falling within the scope of the present application.

[0024] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A foldable handle for a medical foot switch, characterized by, The utility model discloses a switch shell, handle, screw, first gasket, second gasket, third gasket and nut, the screw is arranged in the handle, and the threaded end of the screw is screwed on the switch shell, the third gasket is sleeved on the screw, and the third gasket is located between the handle and the switch shell, the first gasket and the second gasket are all sleeved on the screw, the first gasket is in contact with the side wall of the handle, the second gasket corresponds with the countersunk head of the screw, and the nut is screwed on the screw, and when the nut is in contact with the switch shell, the nut limits the position of the screw.

2. The foldable handle for a medical footswitch according to claim 1, wherein The first gasket is a pom gasket.

3. The foldable handle for a medical footswitch according to claim 1, wherein The second gasket is a butterfly gasket.

4. The foldable handle for a medical footswitch according to claim 1, wherein The third gasket is a flat gasket.

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