Multifunctional electronic wrench

Abstract

The utility model relates to the technical field of electronic wrenches, in particular to a multifunctional electronic wrench which comprises a wrench grab handle, the inner right side of the wrench grab handle is in sliding connection with an extension plate through a sliding groove, the top end of the extension plate is in sliding clamping connection with a limiting clamping pin through a sliding groove, and the outer wall of the limiting clamping pin is in sliding connection with the wrench grab handle through a sliding groove. A wrench body is fixedly connected to the right end of the extension plate, an adjusting device is arranged on the right side of the interior of the wrench body, and a fixed jaw is fixedly connected to the right end of the wrench body. Through the cooperation of the knob, the small gear, the rack and the sliding block, the knob is rotated to drive the small gear to rotate anticlockwise, the small gear enables the rack to move upwards, the rack moves under the limitation of the sliding block and drives the movable jaw to move upwards, and therefore the distance between the movable jaw and the fixed jaw is increased; screws of any size can be mounted and dismounted, and the use function of the wrench is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic wrenches, in particular to a multifunctional electronic wrench. Background Art

[0002] The electronic wrench uses the working principle of the traditional purely mechanical fixed value wrench, but adds a torque shaft or resistance strain sensor and a signal control link, which can completely eliminate the technical defects of the original fixed value wrench.

[0003] For example, an electronic wrench with the authorization announcement number CN2756397Y, although the above document can enable the electronic device connected to the strain gauge to detect and calculate the accurate torque value when the wrench applies force to turn the screw-fixed workpiece, and can provide the user with the most reference data, but when the electronic wrench in the above document is used, the screw is clamped by the turning part, and the holding part is rotated to drive the screw to rotate and remove the screw, and the strain gauge is used to detect the torque force, but due to the difference in size of different screws, the above document can only install and remove the same type of screws, and cannot adjust the spacing between the turning parts according to the size of the screw, and there is a problem of limited use functions. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the electronic wrench in the above-mentioned document has limited functions due to the difference in sizes of different screws, and the above-mentioned document can only install and remove the same kind of screws, and the distance between the actuating parts cannot be adjusted according to the size of the screws, and a multifunctional electronic wrench is proposed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multifunctional electronic wrench is designed, including a wrench handle, the inner right side of the wrench handle is slidably connected to an extension plate through a slide groove, the top of the extension plate is slidably engaged with a limit pin through a slide groove, the outer wall of the limit pin is slidably connected to the wrench handle through the slide groove, the right end of the extension plate is fixedly connected to a wrench body, an adjustment device is provided on the inner right side of the wrench body, and a fixed jaw is fixedly connected to the right end of the wrench body.

[0007] Preferably, the adjusting device includes a knob, the outer wall of the knob is rotatably connected to the wrench body, a small gear is fixed to the rear end of the knob, the right side of the small gear is meshed with the rack, the outer wall of the rack is slidably connected to the slider through a sliding groove, and the front and rear ends of the slider are fixed to the wrench body.

[0008] Preferably, a movable jaw is fixedly connected to the top end of the rack.

[0009] Preferably, a strain gauge is installed on the outer wall of the fixed jaw.

[0010] Preferably, the outer wall of the strain gauge is electrically connected to the display screen through an electric wire, and the outer wall of the display screen is fixedly connected to the wrench body.

[0011] Preferably, an annular jaw is fixedly connected to the left end of the wrench handle.

[0012] The utility model provides a multifunctional electronic wrench, which has the beneficial effect that: through the cooperation between the knob, the small gear, the rack and the slider, the knob is rotated to make the knob drive the small gear to rotate counterclockwise, the small gear will make the rack move upward, the rack moves under the restriction of the slider, and drives the movable jaw to move upward, thereby increasing the distance between the movable jaw and the fixed jaw, and can install and remove screws of any size, thereby improving the use function of the wrench and reducing the use limitations. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the main plan view of the internal connection structure;

[0015] Figure 3 for Figure 2 A three-dimensional enlarged schematic diagram of the middle part connection structure;

[0016] Figure 4 for Figure 2 Schematic diagram of the connection structure at A in the middle.

[0017] In the figure: 1. wrench handle, 2. extension plate, 3. limit pin, 4. adjustment device, 401. knob, 402. small gear, 403. rack, 404. slider, 4A1. T-plate, 4A2. screw, 4A3. small bevel gear set, 4A4. handwheel, 5. wrench body, 6. fixed jaws, 7. strain gauge, 8. display screen, 9. ring jaws, 10. movable jaws. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Embodiment 1:

[0020] See also Figure 1-4In the present embodiment: a multifunctional electronic wrench comprises a wrench handle 1, the inner right side of the wrench handle 1 is slidably connected with an extension plate 2 through a slide groove, the extension plate 2 can slide left and right along the slide groove of the wrench handle 1, so that the length of the wrench can be extended, the top of the extension plate 2 is slidably engaged with a limit pin 3 through the slide groove, and the movement of the extension plate 2 is limited by inserting the limit pin 3 into the notch above the extension plate 2, the outer wall of the limit pin 3 is slidably connected with the wrench handle 1 through the slide groove, the limit pin 3 slides up and down along the slide groove of the wrench handle 1, the right end of the extension plate 2 is fixedly connected with a wrench body 5, the extension plate 2 drives the wrench body 5 to move, an adjusting device 4 is arranged on the inner right side of the wrench body 5, and a fixed jaw 6 is fixedly connected to the right end of the wrench body 5.

[0021] The adjusting device 4 includes a knob 401, a small gear 402, a rack 403 and a slider 404. The outer wall of the knob 401 is rotatably connected to the wrench body 5. The rear end of the knob 401 is fixedly connected with a small gear 402. The knob 401 drives the small gear 402 to rotate. The right side of the small gear 402 is meshed and connected with the rack 403. When the small gear 402 rotates, the rack 403 can be moved up and down. The outer wall of the rack 403 is slidably connected to the slider 404 through a sliding groove. The rack 403 slides under the restriction of the slider 404. The front and rear ends of the slider 404 are fixedly connected to the wrench body 5.

[0022] Turning the knob 401 causes the knob 401 to drive the small gear 402 to rotate counterclockwise. The small gear 402 causes the rack 403 to move upward. The rack 403 moves under the restriction of the slider 404 and drives the movable jaw 10 to move upward, thereby increasing the distance between the movable jaw 10 and the fixed jaw 6. Screws of any size can be installed and removed, thereby improving the usability of this wrench.

[0023] A movable jaw 10 is fixedly connected to the top of the rack 403, and the rack 403 drives the movable jaw 10 to move up and down. A strain gauge 7 is installed on the outer wall of the fixed jaw 6. When the stress inside the measured structure changes, the strain gauge synchronously senses the deformation, and the deformation is transmitted to the vibrating wire through the front and rear end seats and converted into a change in the stress of the vibrating wire, thereby changing the vibration frequency of the vibrating wire and changing the resistance value. The strain gauge 7 is a prior art and will not be described in detail here. The outer wall of the strain gauge 7 is electrically connected to the display screen 8 through an electric wire, and the resistance value of the strain gauge 7 is detected by the display screen 8 to obtain the torque force and display it in the form of a numerical value. The outer wall of the display screen 8 is fixedly connected to the wrench body 5, and the left end of the wrench handle 1 is fixedly connected to an annular jaw 9.

[0024] Working principle:

[0025] When using the multifunctional electronic wrench, first, the user moves the wrench to the position of the screw that needs to be installed or removed, and turns the knob 401, so that the knob 401 drives the small gear 402 to rotate counterclockwise, and the small gear 402 causes the rack 403 to move upward, and the rack 403 moves under the restriction of the slider 404, and drives the movable jaw 10 to move upward, thereby increasing the distance between the movable jaw 10 and the fixed jaw 6, and screws of any size can be installed and removed, thereby improving the use function of the wrench. After reaching the appropriate position, stop turning the knob 401, and then pull the limit pin upward. 3, so that the limit pin 3 is separated from the extension plate 2. At this time, the extension plate 2 is pulled to the right to extend the wrench, which is more labor-saving. After reaching the appropriate position, the limit pin 3 is inserted into the corresponding notch of the extension plate 2 at this time. Then, the wrench handle 1 is rotated. The wrench handle 1 drives the wrench body 5 to rotate through the extension plate 2. The wrench body 5 drives the screw to rotate through the mobile jaw 10 and the fixed jaw 6. During this process, the strain gauge 7 will detect the internal stress change of the screw and change its own resistance value. The display screen 8 will detect the strain gauge 7 and calculate the torque force and display it in the form of a numerical value to complete the use of the electronic wrench.

[0026] Embodiment 2:

[0027] See also Figure 1-4 In this embodiment: a multifunctional electronic wrench, wherein the adjusting device 4 may further include a T-shaped plate 4A1, a screw rod 4A2, a small bevel gear set 4A3 and a hand wheel 4A4, the right end of the T-shaped plate 4A1 is tightly fitted with the small gear 402, and the rotation of the small gear 402 is limited by inserting the T-shaped plate 4A1 into the tooth gap of the small gear 402, the top of the T-shaped plate 4A1 is slidably connected to the wrench body 5 through a slide groove, and the lower part of the outer wall of the T-shaped plate 4A1 is threadedly connected to the screw rod 4A2, when the screw rod 4A2 rotates, the T-shaped plate 4A1 will move left and right, the left end of the screw rod 4A2 is fixedly connected with the small bevel gear set 4A3, and the small bevel gear set 4A3 can drive the screw rod 4A2 to rotate, the outer wall of the small bevel gear set 4A3 is rotatably connected to the wrench body 5 through a rotating shaft, and the top of the small bevel gear set 4A3 is fixedly connected with the hand wheel 4A4, and the small bevel gear set 4A3 is driven to rotate by rotating the hand wheel 4A4.

[0028] Working principle:

[0029] When this embodiment is working, the user rotates the hand wheel 4A4 to drive the small bevel gear set 4A3 to rotate, and the small bevel gear set 4A3 can drive the screw rod 4A2 to rotate. When the screw rod 4A2 rotates, the T-shaped plate 4A1 moves to the left, so that the T-shaped plate 4A1 is separated from the small gear 402. At this time, the small gear 402 is rotated to adjust the distance between the movable jaw 10 and the fixed jaw 6. After the adjustment is completed, the hand wheel 4A4 is rotated in the opposite direction, and the T-shaped plate 4A1 is inserted back into the tooth gap of the small gear 402 again to limit the rotation of the small gear 402, thereby completing the use of this device.

[0030] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A multifunctional electronic wrench, comprising a wrench handle (1), characterized in that: The inner right side of the wrench handle (1) is slidably connected to the extension plate (2) through a sliding groove, the top of the extension plate (2) is slidably engaged with the limit pin (3) through the sliding groove, the outer wall of the limit pin (3) is slidably connected to the wrench handle (1) through the sliding groove, the right end of the extension plate (2) is fixedly connected to a wrench body (5), the inner right side of the wrench body (5) is provided with an adjustment device (4), and the right end of the wrench body (5) is fixedly connected to a fixed jaw (6).

2. A multifunctional electronic wrench according to claim 1, characterized in that: The adjusting device (4) comprises a knob (401), the outer wall of which is rotatably connected to the wrench body (5), a small gear (402) being fixedly connected to the rear end of the knob (401), the right side of which is meshingly connected to a rack (403), the outer wall of which is slidably connected to a slider (404) via a sliding groove, and the front and rear ends of the slider (404) are both fixedly connected to the wrench body (5).

3. A multifunctional electronic wrench according to claim 2, characterized in that: The top end of the rack (403) is fixedly connected with a movable jaw (10).

4. A multifunctional electronic wrench according to claim 1, characterized in that: A strain gauge (7) is installed on the outer wall of the fixed jaw (6).

5. A multifunctional electronic wrench according to claim 4, characterized in that: The outer wall of the strain gauge (7) is electrically connected to the display screen (8) via an electric wire, and the outer wall of the display screen (8) is fixedly connected to the wrench body (5).

6. A multifunctional electronic wrench according to claim 1, characterized in that: The left end of the wrench handle (1) is fixedly connected with an annular jaw (9).

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