Adjusting shaft of six-shaft space external fixing support

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to an adjusting shaft of a six-shaft space external fixing support, which comprises a top pipe, a threaded rod and a control mechanism, the top of the threaded rod is inserted into the top pipe, and a motor drives an internal threaded pipe to rotate to realize lifting adjustment of the threaded rod relative to the top pipe; the control mechanism comprises a supporting frame, a motor and an inner threaded pipe, a first mounting hole and a second mounting hole are formed in the bottom of the supporting frame, the motor and the inner threaded pipe are fixed in the supporting frame, and the inner threaded pipe is arranged in the second mounting hole through a bearing and is in linkage with the driving wheel to drive the threaded rod to ascend and descend; the support adjusting shaft is stable in structure, easy and convenient to operate, capable of achieving high-precision positioning and suitable for support adjustment in the surgical operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to an adjustment axis of a six-axis spatial external fixing bracket. Background Art

[0002] The existing Taylor bracket is a three-dimensional structure composed of multiple interconnected rods or beams, which can form a stable support system in space. Its basic structure consists of two metal rings and six retractable connecting rods. These connecting rods can rotate and adjust the length to achieve the change of the relative position and orientation between the two modules. However, the existing adjustment axis has certain limitations when adjusting the position, and it is difficult to achieve precise positioning and adjustment. Moreover, it is all manual adjustment, which is prone to wear after long-term use, resulting in reduced adjustment accuracy and stability. Summary of the invention

[0003] In view of the problems existing in the prior art, the purpose of the utility model is to provide an adjustment shaft of a six-axis spatial external fixation bracket, which can realize precise adjustment of the bracket position through electric control, thereby solving the problems of inconvenient adjustment and insufficient precision existing in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An adjustment shaft of a six-axis spatial external fixing bracket, comprising a top pipe, a threaded rod and a control mechanism;

[0006] The top of the threaded rod is inserted into the jacking pipe;

[0007] The control mechanism includes a support frame, a motor and an internally threaded tube;

[0008] The internal threaded pipe and the motor are both arranged on a support frame, the support frame is sleeved on the lower end of the top pipe, the internal threaded pipe is threadedly sleeved on the threaded rod, and the motor can control the rotation of the internal threaded pipe.

[0009] Furthermore, the support frame is configured as an I-shaped structure, and a first mounting hole and a second mounting hole are respectively provided at both ends of the bottom of the support frame, and a sleeve ring plate is provided at both ends of the top, and the sleeve ring plate includes a fixed arc plate and a clamping arc plate, and the clamping arc plate is detachably arranged on the side of the fixed arc plate.

[0010] Furthermore, the first mounting hole is arranged as a stepped structure, the lower end of the motor is inserted into the first mounting hole, and a ring plate is arranged through the top, a driving wheel is arranged on the output shaft at the lower end of the motor, and the internal threaded tube is arranged in the second mounting hole and rotates synchronously with the driving wheel.

[0011] Furthermore, a bearing is provided on the top of the internally threaded tube, and a wheel body is provided on the bottom; the internally threaded tube is arranged in the second mounting hole through the bearing, and the wheel body is of the same type as the driving wheel; the top of the second mounting hole is arranged on the bottom of the top tube.

[0012] Furthermore, the ends of the top pipe and the threaded rod that are away from each other are both hingedly provided with connecting frames, and the ends of the two connecting frames that are away from each other are both provided with protruding columns.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The support adjustment shaft provided by the utility model effectively solves multiple problems in the prior art through its unique design and structure. First, by combining the threaded rod with the top pipe, the device can achieve a precise adjustment function. The threaded rod is inserted into the top pipe, and the internal threaded pipe is rotated by the control of the motor, thereby driving the threaded rod to rise and fall relative to the top pipe. This design makes the support adjustment not only easy to operate, but also can achieve high-precision positioning, meet the precise requirements for the position of the support in surgical operations, and avoid the time-consuming and labor-intensive problems of manual adjustment.

[0015] Secondly, the I-shaped structure design of the support frame improves the stability of the entire device. The support frame is set at the lower end of the top pipe, and fixes the motor and the internal threaded pipe through the first mounting hole and the second mounting hole. This structure not only ensures the stable installation of each component, but also provides sufficient support strength, so that the motor can operate stably during operation without being affected by external forces. In addition, the sleeve ring plate on the top of the support frame, including the fixed arc plate and the clamping arc plate, provides additional fixing measures, further enhancing the stability of the top pipe.

[0016] Thirdly, the utility model realizes precise control of the threaded rod through the linkage design of the driving wheel and the internal threaded tube. The driving wheel and the internal threaded tube are connected by a belt or chain. When the motor drives the driving wheel to rotate, the internal threaded tube will also rotate synchronously. This design ensures that the lifting and lowering adjustment process of the threaded rod is smooth and accurate, avoiding the problem of reduced adjustment accuracy due to wear or other reasons. The use of bearings further reduces the friction when the internal threaded tube rotates, making the entire device run more smoothly and durable.

[0017] In summary, the support adjustment shaft provided by the utility model is not only compact and reasonable in structure, but also can realize flexible adjustment and precise positioning of the surgical fixed support. Through electric control, users can operate more conveniently, greatly improving the efficiency and accuracy of the operation. At the same time, the design of the device also ensures its reliability and stability in long-term use, meeting the requirements of modern medical equipment for high precision and high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the jacking pipe of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the control mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the disassembly of the control mechanism of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the motor of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the internally threaded pipe of the utility model;

[0024] Figure 7 It is a structural schematic diagram of the connecting frame of the utility model.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 21. top pipe; 22. threaded rod; 23. connecting frame; 24. boss; 25. sliding hole; 26. end pipe;

[0027] 7. Control mechanism; 71. Motor; 72. Support frame; 721. First mounting hole; 722. Second mounting hole; 723. Sleeve ring plate; 725. Fixed arc plate; 724. Clamping arc plate; 73. Driving wheel; 74. Internally threaded pipe; 741. Bearing. DETAILED DESCRIPTION

[0028] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0029] See also Figure 1-7, an adjustment shaft of a six-axis spatial external fixed bracket, comprising a top tube 21, a threaded rod 22 and a control mechanism 7; the top tube 21 is a hollow tubular structure, and its bottom has an opening for connecting to a support frame 72; the threaded rod 22 is a long threaded shaft, and its top is inserted into the top tube 21. Through the close fit with the top tube 21, the threaded rod 22 can perform smooth spiral motion relative to the top tube 21, thereby achieving precise adjustment of the bracket; the control mechanism 7 includes a support frame 72, a motor 71 and an internal threaded tube 74; the support frame 72 is the core supporting component of the control mechanism, and its structure is stable and can withstand the weight and operating force of the motor 71 and the internal threaded tube 74; the motor 71 is installed in the middle of the support frame 72, and drives the active The wheel 73 rotates; the internal threaded tube 74 and the motor 71 are both arranged on the support frame 72, and the support frame 72 is sleeved on the lower end of the top pipe 21. The support frame 72 and the top pipe 21 are closely matched to ensure the stability and accuracy of the overall structure; the internal threaded tube 74 is a tubular component with internal threads, and its bottom is installed in the second mounting hole 722 of the support frame 72 through a bearing 741, and is in close contact with the threaded rod 22. The internal threaded tube 74 can be driven by the motor 71 to rotate around the threaded rod 22, so that the threaded rod 22 can be raised and lowered relative to the top pipe 21; the motor 71 can control the rotation of the internal threaded tube 74, and the movement of the threaded rod 22 can be accurately controlled through the linkage of the driving wheel 73 and the internal threaded tube 74.

[0030] See also Figure 3-5 , the support frame 72 is set to an I-shaped structure, which has high structural stability and load-bearing capacity; a first mounting hole 721 and a second mounting hole 722 are respectively arranged at both ends of the bottom of the support frame 72, and the two mounting holes are used to fix the motor 71 and the internal threaded tube 74; the first mounting hole 721 is a stepped structure with steps of different diameters for better fixing the motor 71; the second mounting hole 722 is a circular hole for accommodating the installation of the internal threaded tube 74 and the bearing 741; sleeve ring plates 723 are arranged at both ends of the top of the support frame 72, and the sleeve ring plates 723 are used to fix the top pipe 21 and prevent it from being displaced during operation; the sleeve ring plate 723 includes a fixed arc plate 725 and a clamping arc plate 724, and the fixed arc plate 725 is an arc plate fixed to the top of the support frame 72 for supporting and fixing the top pipe 21; the clamping arc plate 724 is detachably arranged on the side of the fixed arc plate 725, and is connected to the fixed arc plate 725 by bolts or other fixing devices to ensure the stability of the top pipe 21.

[0031] See also Figure 4-5The first mounting hole 721 is set as a stepped structure, and a plurality of steps of different diameters are provided inside thereof to adapt to the fixation of different parts of the motor 71; the lower end of the motor 71 is inserted into the first mounting hole 721, and a ring plate 723 is set through the top, and the top of the motor 71 is fixed to the support frame 72 by a fixing device to ensure the stability of the motor 71 during operation; a driving wheel 73 is sleeved on the output shaft at the lower end of the motor 71, and the driving wheel 73 is a circular wheel-shaped component, which is tightly connected to the output shaft of the motor 71 and rotated by the drive of the motor 71; the internal threaded tube 74 is set in the second mounting hole 722, is connected to the support frame 72 through a bearing 741, and rotates synchronously with the driving wheel 73, ensuring the precise control of the threaded rod 22.

[0032] See also Figure 4-6 The top of the internal threaded tube 74 is provided with a bearing 741, which is a rolling bearing used to reduce the friction of the internal threaded tube 74 when it rotates, ensuring its smooth operation; the bottom of the internal threaded tube 74 is provided with a wheel body, which is a circular component, the same type as the driving wheel 73, and can be a pulley or a sprocket; the wheel body is connected to the driving wheel 73 through a belt or a chain, and the rotation of the internal threaded tube 74 is driven by the motor 71; the internal threaded tube 74 is arranged in the second mounting hole 722 through the bearing 741 to ensure its stability and smoothness during rotation; the top of the second mounting hole 722 is sleeved on the bottom of the top pipe 21, and the stable connection between the top pipe 21 and the support frame 72 is ensured through a tight fit.

[0033] See also Figure 1 and Figure 7 The top pipe 21 and the threaded rod 22 are both hingedly provided with a connecting frame 23 at one end away from each other. The connecting frame 23 is a structure used to connect other components and is usually made of metal with high strength and durability. The two connecting frames 23 are both provided with a boss 24 at one end away from each other. The boss 24 is a protruding cylindrical component used to connect or fix with other structures. These designs ensure the versatility and adaptability of the bracket adjustment axis, and different connections and adjustments can be made as needed.

[0034] The working principle of the utility model is:

[0035] During specific installation, the lower end of the motor 71 is inserted into the first mounting hole 721, a driving wheel 73 is sleeved on the output shaft of the lower end of the motor 71, a bearing 741 is sleeved on the top of the internal threaded tube 74, and a wheel body is arranged at the bottom, and the internal threaded tube 74 is arranged in the second mounting hole 722 through the bearing 741. At this time, the lower end of the top tube 21 and the internal threaded tube 74 are both located in the second mounting hole 722, and the threaded rod 22 is threadedly arranged through the internal threaded tube 74. The wheel body is of the same type as the driving wheel 73, and can be set as a pulley or a sprocket. In addition, the wheel body and the driving wheel 73 can be connected with a belt, a chain, etc. Therefore, when the motor 71 is working, the internal threaded tube 74 can be controlled to rotate, thereby controlling the threaded rod 22 to move relative to the top tube 21, and with the relative rotation of the threaded rod 22 and the top tube 21, the position of the surgical fixing bracket can be flexibly adjusted.

[0036] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An adjustment axis of a six-axis spatial external fixing bracket, characterized in that: It comprises a jacking pipe (21), a threaded rod (22) and a control mechanism (7); The top of the threaded rod (22) is inserted into the top pipe (21); The control mechanism (7) comprises a support frame (72), a motor (71) and an internally threaded tube (74); The internally threaded tube (74) and the motor (71) are both arranged on a support frame (72); the support frame (72) is sleeved on the lower end of the top tube (21); the internally threaded tube (74) is threadedly sleeved on the threaded rod (22); and the motor (71) can control the rotation of the internally threaded tube (74).

2. The adjusting shaft of the six-axis spatial external fixing bracket according to claim 1, characterized in that: The support frame (72) is arranged in an I-shaped structure, and a first mounting hole (721) and a second mounting hole (722) are respectively arranged at two ends of the bottom of the support frame (72), and a sleeve ring plate (723) is arranged at two ends of the top, and the sleeve ring plate (723) includes a fixed arc plate (725) and a clamping arc plate (724), and the clamping arc plate (724) is detachably arranged on the side of the fixed arc plate (725).

3. The adjusting shaft of the six-axis spatial external fixing bracket according to claim 2 is characterized in that: The first mounting hole (721) is arranged as a stepped structure, the lower end of the motor (71) is inserted into the first mounting hole (721), and a ring plate (723) is sleeved through the top, a driving wheel (73) is sleeved on the output shaft at the lower end of the motor (71), and the internally threaded tube (74) is arranged in the second mounting hole (722) and rotates synchronously with the driving wheel (73).

4. The adjusting shaft of the six-axis spatial external fixing bracket according to claim 3 is characterized in that: The top of the internally threaded tube (74) is sleeved with a bearing (741), and the bottom is provided with a wheel body; the internally threaded tube (74) is arranged in the second mounting hole (722) through the bearing (741); the wheel body is of the same type as the driving wheel (73); the top of the second mounting hole (722) is sleeved on the bottom of the top tube (21).

5. The adjusting shaft of the six-axis spatial external fixing bracket according to claim 1, characterized in that: The ends of the top pipe (21) and the threaded rod (22) that are away from each other are both hingedly provided with a connecting frame (23), and the ends of the two connecting frames (23) that are away from each other are both provided with a protruding column (24).

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