Electric wrench for assembling and disassembling nut of concrete anti-permeability instrument

Abstract

The utility model belongs to the technical field of electric wrenches, and particularly relates to an electric wrench for assembling and disassembling a nut of a concrete anti-permeability instrument. The device comprises a shell, a plurality of output shafts used for assembling and disassembling nuts on a concrete anti-permeability instrument die holder are installed on the shell, the output shafts are driven by a driving assembly, and the output shafts correspond to the nuts on the concrete anti-permeability instrument die holder in a one-to-one mode. A worker can assemble and disassemble six nuts at a time, work efficiency is greatly improved, manpower is saved, and personal safety and health of the worker are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric wrenches, in particular to an electric wrench used for loading and unloading nuts of concrete impermeability testers. Background Art

[0002] When using concrete for construction, in order to improve the reliability of the building, it is necessary to put the concrete test block into the concrete impermeability tester for impermeability test, so as to test the impermeability of the concrete. The concrete impermeability tester is mainly composed of a box, a workbench, and a stainless steel panel. It is equipped with 6 mold bases and 36 M12 nuts for installing the test mold. A single mold base is fixed on the stainless steel panel in a ring shape by 6 M12 nuts. Usually, the staff will remove the 36 nuts one by one with a wrench, install the concrete test block into the test mold, and then install the 36 nuts one by one before starting the impermeability test. The work efficiency is very low.

[0003] The existing electric wrenches have the following main defects when used to load and unload nuts of concrete permeability testers:

[0004] 1. The existing concrete impermeability tester nuts are loaded and unloaded by the staff holding an electric wrench one by one. The electric wrench has a large torque, and long-term loading and unloading can easily cause operator fatigue, and the noise is huge, affecting the personal safety and health of the staff;

[0005] 2. The existing electric wrench is usually used by the staff to remove the 36 nuts one by one, install the concrete test block into the test mold, and then install the 36 nuts one by one, which takes a lot of time and manpower, has very low work efficiency, and consumes a lot of manpower. Utility Model Content

[0006] In order to overcome the defects in the prior art, the utility model provides an electric wrench for loading and unloading nuts of a concrete impermeability tester. The utility model can improve the efficiency of loading and unloading nuts.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The invention discloses an electric wrench for loading and unloading nuts of a concrete impermeability tester, comprising a shell on which a plurality of output shafts for loading and unloading nuts on a concrete impermeability tester die base are mounted. The output shafts are driven by a driving assembly, and the arrangement of the output shafts corresponds one-to-one to the nuts on the concrete impermeability tester die base.

[0009] Preferably, the outer shell is composed of a base and a cover plate, and 6 groups of drive components are provided, and the 6 groups of drive components are arranged in a ring shape in the base, and the output end of the output shaft extends vertically out of the base and is placed at the bottom of the base; the drive component is connected to the electronic control component.

[0010] Preferably, the drive assembly consists of a torsion motor, a motor ring gear and a transmission gear, the output end of the torsion motor is transmission-connected to the motor ring gear, the motor ring gear is meshed with the transmission gear, and the output shaft is fixedly connected to the inner ring of the transmission gear.

[0011] Preferably, the electronic control component includes a battery and a circuit board, the battery is connected to the circuit board, and the circuit board is connected to the torque motor; a support plate is provided above the drive component, the battery and the circuit board are mounted on the support plate, and 6 batteries and circuit boards are provided.

[0012] Preferably, the electronic control component also includes a torque adjustment knob for adjusting the torque of the torque motor, a speed adjustment knob for adjusting the speed of the torque motor, and a steering switch for driving the torque motor to rotate forward and reverse.

[0013] Preferably, a handle is provided on the base, and a torque adjustment knob, a speed adjustment knob and a steering switch are all provided on the handle, and the torque adjustment knob, the speed adjustment knob and the steering switch are all connected to the circuit board; a motor switch is also provided on the handle.

[0014] Preferably, the base is in a hollow ring shape, and the drive assembly is arranged in an annular chamber of the base; the shape of the base is adapted to the shape of the cover plate.

[0015] Preferably, the six groups of drive assemblies are separated from each other by partitions.

[0016] The advantages of the utility model are:

[0017] The utility model provides a shell that matches the shape of the mold base and an output shaft that matches the size of the nuts on the mold base. Workers can load and unload 6 nuts at a time, which greatly improves work efficiency, saves manpower, and ensures the personal safety and health of the workers. An integrated annular electric wrench is used to fit the shape of the concrete impermeability test mold, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the battery structure of the utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the torque motor of the utility model.

[0021] Figure 4 This is a schematic diagram of the output shaft structure of the utility model.

[0022] Figure 5 It is a front view of the shell of the utility model.

[0023] Figure 6 This is a circuit block diagram of the utility model.

[0024] The meanings of the symbols in the figure are as follows:

[0025] 1-housing, 11-base, 12-cover, 13-handle, 14-support plate, 15-partition, 21-battery, 22-circuit board, 23-torque adjustment knob, 24-speed knob, 25-steering switch, 26-motor switch, 31-torque motor, 32-motor gear ring, 33-transmission gear, 4-output shaft. DETAILED DESCRIPTION

[0026] like Figure 1-5 As shown, an electric wrench for loading and unloading nuts of a concrete impermeability tester comprises a housing 1, a drive assembly and an electric control assembly. The housing 1 is composed of a base 11 at the bottom and a cover plate 12 at the top; the base 11 adopts an integrated circular ring design and is hollow, and the drive assembly is arranged in an annular chamber of the base 11; there are 6 groups of drive assemblies, and adjacent groups are separated by partitions 15; the shape of the base 11 is adapted to the shape of the cover plate 12.

[0027] Specifically, 6 groups of driving components are arranged in a ring shape in the base 11, and the output end of the output shaft 4 extends vertically out of the base 11 and is placed at the bottom of the base 11; the driving component is composed of a torque motor 31, a motor ring gear 32 and a transmission gear 33. The torque motor 31 is controlled by a motor switch 26, and the output end of the torque motor 31 is fixedly connected to the motor ring gear 32, driving the motor ring gear 32 to rotate, and the motor ring gear 32 drives the transmission gear 33 meshing with it to rotate, and the transmission gear 33 then drives the output shaft 4 to rotate, and the top of the output shaft 4 is fixed to the inner ring of the transmission gear 33.

[0028] Furthermore, the electronic control component includes a battery 21, a circuit board 22, a torque adjustment knob 23, a speed adjustment knob 24, and a steering switch 25. The battery 21 is connected to the circuit board 22, and the circuit board 22 is connected to the torque motor 31; a support plate 14 is provided above the drive component for fixing the battery 21 and the circuit board 22; the battery 21 and the circuit board 22 are both mounted on the support plate 14, and 6 batteries 21 and 6 circuit boards 22 are provided.

[0029] Furthermore, a handle 13 is provided on the base 11, and a torque adjustment knob 23, a speed adjustment knob 24 and a steering switch 25 are all provided on the handle 13, and the torque adjustment knob 23, the speed adjustment knob 24 and the steering switch 25 are all connected to the circuit board 22; the motor switch 26 is also provided on the handle 13.

[0030] like Figure 6As shown, during operation, the motor switch 26 is used to start / stop the torque motor 31. The operator presses the switch 26 to start the motor and releases the switch 26 to stop the motor 26. The forward / reverse steering switch 25 is used to control the forward / reverse rotation of the torque motor 31, which is used to tighten / loosen the nut. The torque adjustment knob 23 is used to control the output torque of the torque motor 31, and the tightness of the nut is controlled by adjusting the torque value. The speed knob 24 is used to adjust the speed of the torque motor 31. The battery 21 is used to supply power to the equipment. The digital control circuit board 22 is connected to each switch and the battery 21 through 7 and wires, which is used to process signals and control various components. The cover 12 is used to protect internal parts. The handle 13 is used for the operator to hold.

[0031] The working process of the device is described in detail below with reference to the accompanying drawings in the embodiments.

[0032] Uninstall the nut:

[0033] 1. The staff holds the electric wrench handle 13, aligns the 6 output shafts 4 of the electric wrench with the 6 nuts of the impermeability tester test mold, and clamps them;

[0034] 2. Turn the torque adjustment knob 23 to adjust to a suitable torque;

[0035] 3. Press the motor switch 26, and after all the nuts are removed, release the motor switch 26 and remove the nuts to complete the unloading of a single test mold;

[0036] 4. Complete the nut unloading of the remaining 5 test molds in sequence.

[0037] Mounting Nut:

[0038] 1. The staff places the six nuts on the bolts in sequence, holds the electric wrench handle 13, and aligns the six output shafts of the electric wrench with the six nuts of the impermeability tester test mold;

[0039] 2. Turn the torque adjustment knob 23 to adjust to a suitable torque;

[0040] 3. Press the motor switch 26, wait until all the nuts are tightened, loosen the motor switch 26, and complete the installation of a single test mold;

[0041] Complete the nut installation of the remaining 5 trial molds in sequence.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric wrench for loading and unloading nuts of a concrete impermeability tester, characterized in that: The invention comprises a shell (1), on which a plurality of output shafts (4) for loading and unloading nuts on a concrete impermeability tester die base are mounted, the output shafts (4) being driven by a driving assembly, and the arrangement of the output shafts (4) corresponding one-to-one to the nuts on the concrete impermeability tester die base.

2. The electric wrench for loading and unloading nuts of a concrete impermeability tester according to claim 1, characterized in that: The housing (1) is composed of a base (11) and a cover plate (12); six groups of drive components are provided, and the six groups of drive components are arranged in a ring shape inside the base (11); the output end of the output shaft (4) vertically extends out of the base (11) and is placed at the bottom of the base (11); and the drive component is connected to the electronic control component.

3. The electric wrench for loading and unloading nuts of a concrete impermeability tester according to claim 2, characterized in that: The driving assembly is composed of a torque motor (31), a motor gear ring (32) and a transmission gear (33); the output end of the torque motor (31) is transmission-connected to the motor gear ring (32); the motor gear ring (32) is meshed with the transmission gear (33); and the output shaft (4) is fixedly connected to the inner ring of the transmission gear (33).

4. The electric wrench for loading and unloading nuts of a concrete impermeability tester according to claim 3, characterized in that: The electric control component comprises a battery (21) and a circuit board (22), wherein the battery (21) is connected to the circuit board (22), and the circuit board (22) is connected to the torque motor (31); a support plate (14) is arranged above the drive component, and the battery (21) and the circuit board (22) are both mounted on the support plate (14), and six batteries (21) and six circuit boards (22) are arranged.

5. The electric wrench for loading and unloading nuts of a concrete impermeability tester according to claim 4, characterized in that: The electric control component also includes a torque adjustment knob (23) for adjusting the torque of the torque motor (31), a speed adjustment knob (24) for adjusting the rotation speed of the torque motor (31), and a steering switch (25) for driving the torque motor (31) to rotate forward and reverse.

6. The electric wrench for loading and unloading nuts of a concrete impermeability tester according to claim 5, characterized in that: The base (11) is provided with a handle (13); the torque adjustment knob (23), the speed adjustment knob (24) and the steering switch (25) are all provided on the handle (13); the torque adjustment knob (23), the speed adjustment knob (24) and the steering switch (25) are all connected to the circuit board (22); and the handle (13) is also provided with a motor switch (26).

7. The electric wrench for loading and unloading nuts of a concrete impermeability tester according to claim 2, characterized in that: The base (11) is in the shape of a hollow annular ring, and the driving assembly is arranged in an annular chamber of the base (11); the shape of the base (11) is compatible with the shape of the cover plate (12).

8. The electric wrench for loading and unloading nuts of a concrete impermeability tester according to claim 2, characterized in that: The six groups of driving components are separated from each other by partitions (15).

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