Pressurizing pliers capable of steplessly adjusting width

Abstract

The pressurizing clamp comprises a first clamp handle and a second clamp handle which are arranged in a crossed mode, a stepless regulator is arranged between the first clamp handle and the second clamp handle, the stepless regulator comprises a regulator body, a shaft is rotationally connected to the regulator body, a follow-up threaded rod is connected to the shaft in series, and the first clamp handle and the second clamp handle are arranged in a staggered mode. The threaded rod is in threaded connection with a sliding block which moves in the axial direction, the shaft is provided with a rotary knob which is driven to rotate, the first clamp handle is hinged to the regulator body, the second clamp handle is hinged to the sliding block, and a connecting rod with one end hinged to the first clamp handle and the other end hinged to the sliding block is arranged between the first clamp handle and the stepless regulator. The hinged position of the first clamp handle and the regulator body is arranged close to the head of the first clamp handle, and the hinged position of the first clamp handle and the connecting rod is arranged close to the tail of the first clamp handle. The pressurizing clamp has the advantages of being novel in structure, flexible and convenient to use, complete in overall function and high in practicability.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and more particularly to a compression forceps with stepless width adjustment. Background Art

[0002] In recent years, with the continuous improvement of orthopedic instruments and the continuous improvement of surgical techniques. For scenarios where stable pressure is required during surgery, such as fracture fixation, spinal correction, and fracture end alignment, the existing solutions provide pressure pliers that use the clamp handle to clamp and generate pressure. At the same time, the rack and spring at the end of the clamp handle are used to fix the clamp handle to ensure sufficient and stable pressure on the clamped object. Due to the limitations of the structure of the connection between the left and right clamp handles, the clamping range of the pressure pliers is limited to a certain extent.

[0003] In the Chinese utility patent (application number: 201420787998.X), a pressure-enhancing medical forceps is disclosed. The left and right handles of the pressure-enhancing forceps are connected by a piece 5, and the clamping range is affected by the front end length of the handle and the spring length of the piece 6, so the clamping range is limited to a certain extent.

[0004] In the Chinese utility patent (application number: 202122784139.8), a medical femoral head joint pressurizing clamp is disclosed. The pressurizing clamp provides a structural design with an adjustable pressurization range, which can adjust a total of 6 different widths, but it relies on spring elasticity for clamping and retention, and is not locked. At the same time, the distance between each level of width adjustment cannot be reached. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a pressurizing pliers with stepless width adjustment, which has the characteristics of novel structure and flexible and convenient use.

[0006] To solve the above technical problems, the object of the present invention is achieved as follows: the present invention involves a type of pressurizing pliers with stepless width adjustment, comprising a first pliers handle and a second pliers handle arranged crosswise, a stepless adjuster is provided between the first pliers handle and the second pliers handle, the stepless adjuster comprises an adjuster body, a shaft is rotatably connected to the adjuster body, a threaded rod is serially connected to the shaft for follow-up, a slider for axial movement is threadedly connected to the threaded rod, a knob for driving rotation is provided on the shaft, the first pliers handle is hinged to the adjuster body, the second pliers handle is hinged to the slider, a connecting rod is provided between the first pliers handle and the stepless adjuster, one end of the connecting rod is hinged to the first pliers handle and the other end is hinged to the slider.

[0007] The present invention is further configured as follows: the hinged portion between the first clamp handle and the regulator body is arranged close to the head portion of the first clamp handle, and the hinged portion between the first clamp handle and the connecting rod is arranged close to the tail portion of the first clamp handle.

[0008] The present invention is further configured as follows: a limiting hole extending along the length direction is opened on the regulator body, the length extension direction of the limiting hole is consistent with the axial direction of the shaft, the shaft passes through the limiting hole, the threaded rod is arranged in the limiting hole and rotates, and the slider slides in the limiting hole.

[0009] The present invention is further configured as follows: the knob is arranged in the limiting hole and rotates.

[0010] The present invention is further configured as follows: the tail of the second clamp handle is rotatably connected to a rack extending in the radial direction, and the tail of the first clamp handle is provided with teeth that are engaged in tooth grooves of the rack.

[0011] The present invention is further configured as follows: a spring sheet is provided on the second clamp handle, one end of the spring sheet is connected to the second clamp handle, and the other end thereof is against the end of the rack.

[0012] The present invention is further configured such that: the end of the rack is in an arc surface structure.

[0013] To sum up, the present invention has the following beneficial effects: the pressurized pliers with stepless width adjustment involved in the present invention can adjust the clamping range steplessly through a thread, so that the pliers can be used in a variety of clamping scenarios and suitable for clamping of various widths. At the same time, during the clamping process, the clamping width can be fine-tuned by adjusting the thread. The structure is novel, the use is flexible and convenient, the overall function is complete, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0016] Figure 3 It is a partial structural schematic diagram of the present invention;

[0017] Figure 4 It is a partial structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the preferred embodiments of the present invention are described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the patent requirements of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0019] The present invention is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0020] Example 1

[0021] See also Figures 1 to 3 As shown, the present embodiment involves a pressurizing pliers with stepless width adjustment, comprising a first pliers handle 1 and a second pliers handle 2 arranged crosswise, a stepless regulator is provided between the first pliers handle 1 and the second pliers handle 2, the stepless regulator comprises a regulator body 3, a shaft 4 is rotatably connected to the regulator body 3, a threaded rod 5 is serially connected to the shaft 4 for follow-up, a slider 6 for axial movement is threadedly connected to the threaded rod 5, a knob 7 for driving rotation is provided on the shaft 4, the first pliers handle 1 is hinged on the regulator body 3, the second pliers handle 2 is hinged on the slider 6, a connecting rod 8 with one end hinged on the first pliers handle 1 and the other end hinged on the slider 6 is provided between the first pliers handle 1 and the stepless regulator.

[0022] Furthermore, the hinged joint between the first clamp handle 1 and the regulator body is arranged near the head of the first clamp handle 1 , and the hinged joint between the first clamp handle 1 and the connecting rod 8 is arranged near the tail of the first clamp handle 1 .

[0023] Furthermore, a limiting hole 9 extending along the length direction is provided on the regulator body 3, and the length extension direction of the limiting hole 9 is consistent with the axial direction of the shaft 4. The shaft 4 passes through the limiting hole 9, the threaded rod 5 is arranged in the limiting hole 9 and rotates, and the slider 6 slides in the limiting hole 9.

[0024] Furthermore, the knob 7 is disposed in the limiting hole 9 and rotates.

[0025] In this embodiment, by rotating the knob 7 in the clockwise direction, the knob 7 drives the shaft 4 and the threaded rod 5 thereon to rotate relative to the regulator body 3, so that the slider 6 drives the connected first clamp handle 1 and the connecting rod 8 to be adjusted, thereby reducing the distance between the hinge of the first clamp handle 1 and the slider 6 and the hinge of the regulator body 3 and the second clamp handle 2, thereby achieving the effect of reducing the clamping width; by rotating the knob 7 in the counterclockwise direction, the knob 7 drives the shaft 4 and the threaded rod 5 thereon to rotate relative to the regulator body 3, so that the slider 6 drives the connected first clamp handle 1 and the connecting rod 8 to be adjusted, thereby increasing the distance between the hinge of the first clamp handle 1 and the slider 6 and the hinge of the regulator body 3 and the second clamp handle 2, thereby achieving the effect of increasing the clamping width.

[0026] Among them, through the opening of the limiting hole 9, one is used to accommodate the installation of the threaded rod 5 and the slider 6, and the other two play a role in guiding the movement and limiting the slider 6.

[0027] Example 2

[0028] See also Figures 1 to 4As shown, the present embodiment involves a type of pressurizing pliers with stepless width adjustment, which is further configured on the basis of Embodiment 1, wherein the tail of the second pliers handle 2 is rotatably connected to a rack 10 extending radially, and the tail of the first pliers handle 1 is provided with teeth 11 which are engaged in the tooth grooves of the rack.

[0029] Furthermore, a spring sheet 12 is disposed on the second clamp handle 2 , one end of the spring sheet 12 is connected to the second clamp handle, and the other end thereof is against the end of the rack.

[0030] Furthermore, the end of the rack 10 is in an arc surface structure.

[0031] In this embodiment, by setting the spring piece 12 against the end of the rack 10, the rack 10 in the natural state can be moved toward the tail of the first clamp handle 1, so that the tooth 11 is stuck in a tooth groove of the rack 10 for limiting.

[0032] The pressurized pliers with stepless width adjustment involved in the present invention can adjust the clamping range steplessly through a thread, so that the pliers can be used in a variety of clamping scenarios and suitable for clamping of various widths. At the same time, during the clamping process, the clamping width can be fine-tuned by adjusting the thread. The structure is novel, the use is flexible and convenient, the overall function is complete, and the practicability is strong.

[0033] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0034] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A pressurizing pliers with stepless width adjustment, comprising a first pliers handle and a second pliers handle arranged crosswise, characterized in that: A stepless regulator is provided between the first clamp handle and the second clamp handle. The stepless regulator includes a regulator body, a shaft is rotatably connected to the regulator body, a threaded rod is serially connected to the shaft for following, a slider is threadedly connected to the threaded rod for moving along the axial direction, a knob for driving rotation is provided on the shaft, the first clamp handle is hinged to the regulator body, the second clamp handle is hinged to the slider, and a connecting rod is provided between the first clamp handle and the stepless regulator, one end of which is hinged to the first clamp handle and the other end of which is hinged to the slider.

2. The pressurizing pliers with stepless width adjustment according to claim 1, characterized in that: The hinged part between the first clamp handle and the regulator body is arranged near the head of the first clamp handle, and the hinged part between the first clamp handle and the connecting rod is arranged near the tail of the first clamp handle.

3. The pressurizing pliers with stepless width adjustment according to claim 1 or 2, characterized in that: The regulator body is provided with a limiting hole extending in the length direction, the length extension direction of the limiting hole is consistent with the axial direction of the shaft, the shaft passes through the limiting hole, the threaded rod is arranged in the limiting hole and rotates, and the slider slides in the limiting hole.

4. The pressure pliers with stepless width adjustment according to claim 3, characterized in that: The knob is arranged in the limiting hole and rotates.

5. The pressurizing pliers with stepless width adjustment according to claim 1, characterized in that: The tail of the second clamp handle is rotatably connected to a rack extending in the radial direction, and the tail of the first clamp handle is provided with teeth engaged in the tooth grooves of the rack.

6. The pressurizing pliers with stepless width adjustment according to claim 5, characterized in that: The second clamp handle is provided with an elastic sheet, one end of which is connected to the second clamp handle and the other end of which is against the end of the rack.

7. The pressurizing pliers with stepless width adjustment according to claim 6, characterized in that: The end of the rack is in an arc surface structure.

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