CN219837712U - Torsion screwdriver - Google Patents

Abstract

The utility model provides a torsion screwdriver, and relates to the field of torsion screwdrivers. The machine body is rotationally connected with a dial, a center rod is arranged in the machine body, a chassis is arranged in the base, one end, close to the base, of the center rod is sequentially provided with a first flange, a second flange, a spring, an internal thread flange and an adjusting flange in a penetrating mode, the first flange and the second flange are connected with the center rod through a pin shaft, the spring and the internal thread flange are sleeved on the adjusting flange, the adjusting flange is connected to the inner side of the dial, the internal thread flange is provided with a pointer, the first flange is provided with steel balls matched with the chassis, and the machine body is provided with a scale window; the device can assist the user to accurately control the torque value, and effectively avoid overload torsion.

Description

Torsion screwdriver

Technical Field

The utility model relates to the field of torque screwdrivers, in particular to a torque screwdrivers.

Background

The torque screwdriver is also called a torque screwdriver, namely the screwdriver with a torque value. In the prior art, application number 201821705081.5 discloses a preset torque mechanic screwdriver, the device designs a scale window on a torque tool to display the torque force, but because torque force index is usually an integer, in actual operation, a user cannot control the rotation precision of the torque tool, and a secondary scale is also needed to be matched with the torque force scale.

Disclosure of Invention

Aiming at the defects in the background technology, the utility model provides a torsion screwdriver.

The utility model is realized in the following way:

the utility model provides a torsion screwdriver which comprises a machine body and a base, wherein the machine body and the base are connected with each other, a dial is rotatably connected to the machine body, a center rod is arranged in the machine body, a base plate is arranged in the base, a first flange, a second flange, a spring, an internal thread flange and an adjusting flange are sequentially arranged at one end, close to the base plate, of the center rod in a penetrating mode, the first flange and the second flange are connected with the center rod through a pin shaft, the spring and the internal thread flange are sleeved on the adjusting flange, the adjusting flange is connected to the inner side of the dial, a pointer is arranged on the internal thread flange, steel balls matched with the base plate are arranged on the first flange, and a scale window is arranged on the machine body.

In the utility model, the first flange and the second flange are of T-shaped structures, the second flange is sleeved outside the end part of the first flange, and the first flange and the second flange are provided with pin holes connected with the central rod.

In the utility model, the first flange is provided with a plurality of pits, each pit is internally provided with a steel ball in an interference manner, the chassis is also provided with pits matched with the steel balls, and the number of the pits of the chassis is larger than that of the first flange.

In the utility model, the inner side wall of the base is vertically provided with a plurality of groove bodies, the side wall of the chassis is provided with a plurality of bulges matched with the groove bodies for use, and the middle part of the chassis can pass through the center rod.

In the utility model, the adjusting flange comprises a first shaft sleeve, a connecting disc and a second shaft sleeve which are connected with each other, wherein the first shaft sleeve is fixedly connected with the dial, the second shaft sleeve is provided with external threads, the inner side of the internal thread flange is provided with internal threads matched with the external threads, and the internal thread flange and the spring are sleeved at the external threads of the second shaft sleeve.

In the utility model, the side wall of the internal thread flange is provided with a hole body for installing a pointer.

In the utility model, the outer side wall of the machine body is provided with a plurality of abdomen-pointing grooves.

In the utility model, the outer side wall box dials of the base are all provided with knurled surfaces.

Compared with the prior art, the utility model has at least the following advantages or beneficial effects:

1. the first flange and the second flange are connected with the central rod by adopting the pin shaft, so that the assembly stability is good.

2. According to the utility model, the torque force is adjusted by rotating the dial, the numerical value on the dial can assist a user to accurately control, and the torque value is displayed by moving the pointer up and down on the scale window, so that overload torsion is effectively avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the whole device of the embodiment of the utility model after being disassembled;

FIG. 2 is a schematic diagram illustrating the assembly of the whole device according to the embodiment of the present utility model;

FIG. 3 is a top view of a first flange according to an embodiment of the present utility model;

FIG. 4 is a top view of a chassis according to an embodiment of the present utility model;

FIG. 5 is a top view of a base of an embodiment of the present utility model;

FIG. 6 is a schematic illustration of one side of a fuselage of an embodiment of the present utility model.

Icon: 1-base, 101-groove body, 2-chassis, 201-protrusion, 202-pit, 3-first flange, 301-pin hole, 302-steel ball, 4-second flange, 401-pin hole, 5-spring, 6-internal thread flange, 601-pointer, 7-adjusting flange, 701-second sleeve, 702-connection pad, 703-first sleeve, 8-fuselage, 801-scale window, 802-finger belly groove, 9-dial, 10-center rod, 1001-pin hole.

Detailed Description

Examples

Referring to fig. 1-6, an embodiment of the present utility model is shown.

This embodiment provides a torsion screwdriver, including fuselage 8 and the base 1 that are connected with each other, fuselage 8 rotates and is connected with calibrated scale 9, be provided with center pole 10 in the fuselage 8, be provided with chassis 2 in the base 1, center pole 10 is close to the one end of base 1 and wears to be equipped with first flange 3 in proper order, second flange 4, spring 5, internal thread flange 6 and adjustment flange 7, first flange 3 and second flange 4 are connected with center pole 10 through the round pin axle, adjustment flange 7 is all located to spring 5 and internal thread flange 6 cover, adjustment flange 7 connects in the inboard of calibrated scale 9, internal thread flange 6 is provided with pointer 601, first flange 3 is provided with steel ball 302 with chassis 2 cooperation use, fuselage 8 is provided with scale window 801.

In this embodiment, the scale 9 and the scale window 801 have different values, respectively, that is, a sub-scale and a main scale, the sub-scale representing the rotational accuracy of the scale 9, the main scale representing the magnitude of the torque force, and the scale 9 rotating one turn, the torque force sequentially increasing. Specific:

the adjusting flange 7 includes a first shaft sleeve 703, a connecting disc 702, and a second shaft sleeve 701, wherein the first shaft sleeve 703 is fixedly connected with the dial 9, the second shaft sleeve 701 has external threads, the inner side of the internal thread flange 6 has internal threads matching with the external threads, and the internal thread flange 6 and the spring 5 are both sleeved at the external threads of the second shaft sleeve 701. The user rotates the dial 9, and the dial 9 is connected with the adjusting flange 7, and the adjusting flange 7 is sleeved on the central rod 10, so that when the dial 9 rotates, the adjusting flange 7 is driven to rotate, the spring 5 sleeved at the external thread of the second sleeve 701 deforms along with the rotation of the second sleeve 701, and the adjusting flange 7 moves up and down along with the deformation degree of the spring 5 at the second sleeve 701; the side wall of the internal thread flange 6 is provided with a hole body for installing a pointer 601, and the pointer 601 points to a torque force index at the scale window 801.

In this embodiment, the first flange 3 and the second flange 4 are both in T-shaped structures, the second flange 4 is sleeved outside the end of the first flange 3, and the first flange 3 and the second flange 4 are both provided with a pin hole 301 connected with the central rod 10. The top of the second flange 4 is sleeved at the bottom of the first flange 3, pin holes 301, 1001 and 401 on the second flange 4, the first flange 3 and the central rod 10 are overlapped, a pin shaft sequentially penetrates through the second flange 4, the first flange 3 and the central rod 10, two ends of the pin shaft can be abutted against the inner wall of the machine body 8, and the connecting mode is good in stability, high in speed and convenient to detach in the later period. When the user turns the dial 9 to deform the spring 5 at the center rod 10, the first flange 3 and the second flange 4 fixedly connected to the center rod 10 do not move up and down.

In this embodiment, the first flange 3 is provided with a plurality of pits 202, each pit 202 is provided with a steel ball 302 in an interference manner, the chassis 2 is also provided with pits 202 matched with the steel balls 302, the number of pits 202 of the chassis 2 is greater than that of pits 202 of the first flange 3, and the first flange 3 is abutted with the chassis 2 through the steel balls 302; the inner side wall of the base 1 is vertically provided with a plurality of groove bodies 101, the side wall of the chassis 2 is provided with a plurality of protrusions 201 matched with the groove bodies 101, and the middle part of the chassis 2 can pass through the center rod 10. The side wall of the chassis 2 is provided with a plurality of protrusions 201, and the protrusions correspond to the groove bodies 101 at the inner side wall of the base 1 one by one, and the chassis 2 is arranged in the base 1 through the matching of the protrusions 201 and the groove bodies 101, and the protrusions 201 can move up and down at the groove bodies 101. The steel balls 302 on the first flange 3 are in contact with the pits 202 on the chassis 2, and the steel balls 302 can reduce friction force in the power transmission process and effectively reduce friction loss.

In this embodiment, the outer side wall of the body 8 is provided with a plurality of finger-belly grooves 802, where the user can increase the friction force with the finger-belly when holding the finger-belly, so as to facilitate the application of force by the user.

In this embodiment, the outer side wall box dial 9 of the base 1 is provided with knurled surfaces, and when the user dismounts the base 1 and the machine body 8, the knurled surfaces also have the effect of increasing friction force, so that the user dismounts more conveniently.

In summary, the embodiments of the present utility model have at least the following beneficial effects:

according to the utility model, after the first flange 3 and the second flange 4 are sleeved with each other, the first flange and the second flange are connected with the central rod 10 by adopting the pin shafts, the two ends of the pin shafts are abutted against the inner wall of the machine body 8, so that the assembly stability is good, and the disassembly is convenient.

The second effect is that the steel balls 302 on the first flange 3 are in contact with the pits 202 on the chassis 2, so that friction force in the power transmission process can be reduced, and friction loss is effectively reduced.

The third effect is that the torque force is adjusted by rotating the dial 9, the numerical value on the dial 9 can assist a user to accurately control, and the torque value is displayed by moving the pointer 601 up and down in the scale window 801, so that overload torsion is effectively avoided.

Fourth, the outer side wall of the machine body 8 is provided with a plurality of abdomen-pointing grooves 802, and the outer side wall box dial 9 of the base 1 is provided with knurled surfaces, which plays a role in increasing friction force and is convenient for a user to apply force.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The utility model provides a torsion screwdriver, its characterized in that, includes fuselage and the base through threaded connection each other, the fuselage rotates and is connected with the calibrated scale, be provided with the center pole in the fuselage, be provided with the chassis in the base, the center pole is close to the one end of base is worn to be equipped with first flange, second flange, spring, internal thread flange and adjustment flange in proper order, first flange with the second flange pass through the round pin axle with the center pole is connected, the spring with the internal thread flange all overlaps and locates adjustment flange, adjustment flange connect in the inboard of calibrated scale, the internal thread flange is provided with the pointer, first flange be provided with the steel ball of chassis cooperation use, the fuselage is provided with the scale window.

2. The torque screwdriver of claim 1, wherein the first flange and the second flange are of a T-shaped structure, the second flange is sleeved outside the end portion of the first flange, and the first flange and the second flange are provided with pin holes connected with the center rod.

3. The torque screwdriver according to claim 1, wherein the first flange is provided with a plurality of pits, one steel ball is installed in each pit in an interference mode, the chassis is also provided with pits matched with the steel balls, and the number of the pits of the chassis is larger than that of the first flange.

4. The torque screwdriver according to claim 3, wherein the inner side wall of the base is vertically provided with a plurality of grooves, the side wall of the chassis is provided with a plurality of protrusions matched with the grooves, and the middle part of the chassis can pass through the center rod.

5. The torque screwdriver of claim 1, wherein the adjustment flange comprises a first shaft sleeve, a connecting disc and a second shaft sleeve which are connected with each other, the first shaft sleeve is fixedly connected with the dial, the second shaft sleeve is provided with external threads, the inner side of the internal thread flange is provided with internal threads matched with the external threads, and the internal thread flange and the spring are sleeved at the external threads of the second shaft sleeve.

6. The torque screwdriver of claim 5, wherein the sidewall of the internally threaded flange is provided with a hole for mounting the pointer.

7. The torque driver according to claim 1, wherein the outer sidewall of the body is provided with a plurality of finger-belly grooves.

8. The torque screwdriver of claim 1, wherein the outer sidewall box of the base is provided with knurled surfaces on the dials.