CN211023053U

CN211023053U - Torque wrench for femur neck hollow screw

Info

Publication number: CN211023053U
Application number: CN201921272875.1U
Authority: CN
Inventors: 叶楠
Original assignee: Mianyang Central Hospital
Current assignee: Mianyang Central Hospital
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-07-17
Anticipated expiration: 2029-08-07

Abstract

The utility model discloses a thighbone neck hollow screw torque wrench relates to torque wrench technical field, including the spanner arm of force, the one end external surface fixedly connected with cavity hexagonal wall of the spanner arm of force, the one end fixedly connected with T type handle of the spanner arm of force. Femoral neck hollow screw torque wrench, can real-timely record the torsion of the screw on the femoral neck operation through the resistance strain type sensor that sets up, resistance strain type sensor receives the measuring power and produces deformation through inside elasticity sensing element, and make the resistance strain gauge attached to it warp together, resistance strain gauge converts the change of resistance value into with warping again, thereby can measure torsion, and the transmission signal of telecommunication shows torsion on to the digital display torsion table, and torque wrench middle part is hollow structure, can let in 2.5mm si formula needle from middle part cavity pipeline, be convenient for in the application on the femoral neck operation, bring better use prospect.

Description

Torque wrench for femur neck hollow screw

Technical Field

The utility model belongs to the technical field of torque wrench, concretely relates to thighbone neck hollow screw torque wrench.

Background

Torque wrenches, also known as torque wrenches and torque adjustable wrenches, are one type of wrench that allows an operator to apply a specific torque value when the tightness of the screw and bolt is critical.

However, the existing torque wrench can not be well applied to the screw used in the femoral neck operation, and therefore, a femoral neck hollow screw torque wrench is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides thighbone neck hollow screw torque wrench, the utility model discloses the technical scheme who takes does:

thighbone neck hollow screw torque wrench, including the spanner arm of force, the one end surface fixedly connected with cavity hexagonal wall of the spanner arm of force, the one end fixedly connected with T type handle of the spanner arm of force, be provided with digital display torsion meter between the spanner arm of force and the T type handle, the middle part of cavity hexagonal wall is provided with the cavity pipeline, the inside of cavity hexagonal wall is provided with resistance strain formula sensor.

Preferably, the outer surface of one side of the hollow hexagonal wall is fixedly connected with the outer surface of one side of the T-shaped handle through a wrench force arm.

Preferably, an electric wire is arranged between the resistance strain type sensor and the digital display torsion meter, the output end of the resistance strain type sensor is electrically connected with the input end of the digital display torsion meter, and a battery jar is arranged on the outer surface of one side of the digital display torsion meter.

Preferably, the hollow pipeline is located at the center of the T-shaped handle, and the diameter of the hollow pipeline is 6.5 mm.

Preferably, an elastic sensing element, a resistance strain gauge and a compensation resistor are arranged inside the resistance strain type sensor, the elastic sensing element is electrically connected with the resistance strain gauge, and the resistance strain gauge is electrically connected with the compensation resistor.

Compared with the prior art, the utility model discloses following beneficial effect has: this thighbone neck hollow screw torque wrench, can real-timely measure the torsion of the screw on the thighbone neck operation through the resistance strain type sensor that sets up, resistance strain type sensor receives the measuring power through inside elasticity sensing element and produces deformation, and make the resistance strain gauge that attaches to it warp together, resistance strain gauge changes the resistance value with deformation again, thereby can measure torsion, and transmit electric signal to show torsion on the digital display torsion table, and torque wrench middle part is hollow structure, can let in 2.5mm ss formula needles from middle part hollow pipeline, be convenient for the application on the thighbone neck operation, the effect of use is better for traditional mode.

Drawings

Fig. 1 is a schematic view of the overall structure of the femoral neck hollow screw torque wrench of the present invention;

FIG. 2 is a rear view of the T-shaped handle 2 of the femoral neck hollow screw torque wrench of the present invention;

fig. 3 is a schematic structural view of a hollow hexagonal wall 3 of the femoral neck hollow screw torque wrench of the present invention;

in the figure: 1. a wrench moment arm; 2. a T-shaped handle; 3. a hollow hexagonal wall; 4. digital display torsion meter; 5. a hollow conduit; 6. a resistance strain gauge sensor.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1-3, the femoral neck hollow screw torque wrench comprises a wrench force arm 1, a hollow hexagonal wall 3 is fixedly connected to the outer surface of one end of the wrench force arm 1, a T-shaped handle 2 is fixedly connected to one end of the wrench force arm 1, a digital display torque meter 4 is arranged between the wrench force arm 1 and the T-shaped handle 2, a hollow pipeline 5 is arranged in the middle of the hollow hexagonal wall 3, and a resistance strain sensor 6 is arranged inside the hollow hexagonal wall 3.

The outer surface of one side of the hollow hexagonal wall 3 is fixedly connected with the outer surface of one side of the T-shaped handle 2 through the wrench force arm 1, and the connection relation of partial components is expressed; an electric wire is arranged between the resistance strain type sensor 6 and the digital display torsion meter 4, the output end of the resistance strain type sensor 6 is electrically connected with the input end of the digital display torsion meter 4, and a battery jar is arranged on the outer surface of one side of the digital display torsion meter 4, so that the resistance strain type sensor 6 can conveniently play a role; the hollow pipeline 5 is positioned in the center of the T-shaped handle 2, the diameter of the hollow pipeline 5 is 6.5mm, the diameter of the hollow pipeline 5 is expressed, and a 2.5mm Swiss needle can be conveniently led in; the elastic sensitive element, the resistance strain gauge and the compensation resistor are arranged in the resistance strain type sensor 6, the elastic sensitive element is electrically connected with the resistance strain gauge, and the resistance strain gauge is electrically connected with the compensation resistor, so that the structure of the resistance strain type sensor 6 is expressed, and the resistance strain type sensor 6 can conveniently measure torsion.

The utility model discloses in can real-time measure the torsion of the screw on the femoral neck operation through the resistance strain gauge sensor 6 that sets up, resistance strain gauge sensor 6 receives measured power and produces deformation through inside elasticity sensing element to make the resistance strain gauge attached to it warp together, the resistance strain gauge is the change of resistance value with warping the conversion again, thereby can measure torsion, and the transmission electric signal shows torsion to digital display torsion meter 4 on.

It should be noted that the utility model relates to a femoral neck hollow screw torque wrench, mainly by the spanner arm of force 1, T type handle 2, cavity hexagonal wall 3, digital display torsion table 4, cavity pipeline 5, resistance strain gauge 6 constitutes, in using, check whether the battery is installed to digital display torsion table 4, confirm correct back, hold T type handle 2 and aim at the screw on the femoral neck with cavity hexagonal wall 3 and operate, resistance strain gauge 6 can real-time measure the torsion of the screw on the femoral neck operation in the twisting process, resistance strain gauge 6 receives the measured power through the inside elasticity sensing element and produces the deformation, and make the resistance strain gauge attached to it warp together, resistance strain gauge converts the deformation into the change of resistance value again, thereby can measure the torsion, and transmit the electric signal to the digital display torsion table 4 and show the torsion, and the middle part of the wrench force arm 1 is of a hollow structure, and a 2.5mm Si type needle can be introduced from the middle hollow pipeline 5, so that the effect of application and use in the femoral neck operation is better and more practical compared with the traditional mode.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Thighbone neck hollow screw torque wrench, including the spanner arm of force (1), its characterized in that: the utility model discloses a wrench force measuring device, including wrench force arm (1), one end outer fixed surface of wrench force arm (1) is connected with cavity hexagonal wall (3), the one end fixedly connected with T type handle (2) of wrench force arm (1), be provided with digital display torsion meter (4) between wrench force arm (1) and T type handle (2), the middle part of cavity hexagonal wall (3) is provided with cavity pipeline (5), the inside of cavity hexagonal wall (3) is provided with resistance strain formula sensor (6).

2. The femoral neck cannulated screw torque wrench of claim 1, wherein: the outer surface of one side of the hollow hexagonal wall (3) is fixedly connected with the outer surface of one side of the T-shaped handle (2) through a wrench force arm (1).

3. The femoral neck cannulated screw torque wrench of claim 1, wherein: be provided with the electric wire between resistance strain gauge sensor (6) and digital display torsion meter (4), the output of resistance strain gauge sensor (6) and the input electric connection of digital display torsion meter (4), the battery jar has been seted up to one side surface of digital display torsion meter (4).

4. The femoral neck cannulated screw torque wrench of claim 1, wherein: the hollow pipeline (5) is located in the center of the T-shaped handle (2), and the diameter of the hollow pipeline (5) is 6.5 mm.

5. The femoral neck cannulated screw torque wrench of claim 1, wherein: the elastic strain type sensor is characterized in that an elastic sensitive element, a resistance strain gauge and a compensation resistor are arranged in the resistance strain type sensor (6), the elastic sensitive element is electrically connected with the resistance strain gauge, and the resistance strain gauge is electrically connected with the compensation resistor.