Special electric torque wrench for digestion tank

Abstract

The electric torque wrench special for the digestion tank comprises a shell, a sleeve and a tool bit, a lithium battery and a transmission mechanism are installed in the shell, one end of the sleeve is connected with the transmission mechanism, the other end of the sleeve is connected with the tool bit, the tool bit is a cross-shaped tool bit made of polytetrafluoroethylene materials, the sleeve is further sleeved with a torque knob, and the torque knob is connected with the transmission mechanism. The outer wall of the sleeve is provided with torque scales used in cooperation with the torque knob. According to the electric torque wrench special for the digestion tank, due to the design of the cross-shaped tool bit made of polytetrafluoroethylene, acid and alkali are prevented, the digestion tank can be easily and efficiently screwed and unscrewed, and due to the arrangement of the transmission mechanism, automatic operation can be conveniently achieved, and time and labor are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of experimental equipment, and in particular relates to a special electric torque wrench for a digestion tank. Background Art

[0002] In chemical laboratories, especially when detecting heavy metal content, a digestion tank is usually required for digestion. During operation, the digestion tank is first placed in a fixed device, and then a torque wrench is used to open and close the lid of the digestion tank. The existing torque wrench is usually heavy, and the use of the torque wrench consumes a lot of physical energy in the process of opening and closing. In addition, the torque wrench has a long force arm and the fume hood space is small, which makes the operation very inconvenient, seriously affecting the experimental efficiency. The digestion tank generally contains acid and alkali solutions, and the existing torque wrench is usually made of stainless steel. After long-term contact with acid, alkali and other reagents, it will corrode and rust, affecting its service life. Moreover, the existing torque wrench is usually placed directly on the desktop after use, and there is a risk that the blade head will be contaminated, which will further contaminate the digestion tank. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of the utility model is to provide a special electric torque wrench for a digestion tank, which is used to replace the existing wrench and improve work efficiency, which is specifically achieved through the following technical solutions:

[0004] An electric torque wrench specially used for a digestion tank comprises a shell, a sleeve and a cutter head. A lithium battery and a transmission mechanism are installed in the shell. One end of the sleeve is connected to the transmission mechanism, and the other end of the sleeve is connected to the cutter head. The cutter head is a cross cutter head made of polytetrafluoroethylene. A torque knob is also sleeved on the sleeve, and a torque scale for use with the torque knob is provided on the outer wall of the sleeve.

[0005] Furthermore, the transmission mechanism includes a motor and a transmission gear. The motor is connected to the lithium battery wire, the output end of the motor is connected to the transmission gear, and the output end of the transmission gear is connected to the sleeve.

[0006] Furthermore, a power switch, a forward and reverse switch and a USB charging port are installed on the outer wall of the shell.

[0007] Furthermore, anti-slip stripes and mounting hooks are evenly distributed on the outer wall of the shell.

[0008] Furthermore, the forward / reverse switch changes the forward / reverse direction of the motor by directly exchanging the wiring of two phases of the motor.

[0009] The utility model discloses a special electric torque wrench for a digestion tank. The cross blade head is made of polytetrafluoroethylene and is acid and alkali proof. The utility model can realize the operations of tightening and loosening the digestion tank easily and efficiently. The transmission mechanism is arranged so as to realize automatic operation and save time and labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the overall structure of this practical information;

[0011] Figure 2 This is the internal structure diagram;

[0012] Figure 3 for Figure 2 Schematic diagram of the structure after removing the torque knob;

[0013] Figure 4 This is the forward and reverse structure diagram of the torque knob;

[0014] Figure 5 The top view of the cutter head;

[0015] Figure 6 It is a side view structural diagram of the cutter head;

[0016] In the figure, 1-housing, 2-sleeve, 3-cutter head, 4-lithium battery, 5-torque knob, 6-torque scale, 7-motor, 8-transmission gear, 9-power switch, 10-forward and reverse switch, 11-USB charging port, 12-anti-slip stripes, 13-installation hook. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings in order to better understand the technical solution.

[0018] like Figure 1-6 As shown, the utility model is a special electric torque wrench for a digestion tank, which includes a shell 1, a sleeve 2 and a cutter head 3. A lithium battery 4 and a transmission mechanism are installed in the shell 1. One end of the sleeve 2 is connected to the transmission mechanism, and the other end of the sleeve 2 is connected to the cutter head 3. The cutter head 3 is a cross cutter head made of polytetrafluoroethylene, which is specially used for opening and closing the digestion tank to improve work efficiency. A torque knob 5 is also sleeved on the sleeve 2, and a torque scale 6 used in conjunction with the torque knob 5 is provided on the outer wall of the sleeve 2.

[0019] The shell 1 is made of polytetrafluoroethylene material, which is acid and alkali resistant and can prevent acid and alkali corrosion. Anti-skid stripes 12 and mounting hooks 13 are evenly distributed on the outer wall of the shell 1. The setting of the anti-skid stripes 12 is convenient for increasing friction and preventing slipping during work; the setting of the mounting hook 13 is convenient for hanging the electric torque wrench on the wall of the fume hood for convenient storage and can also prevent contamination by desktop reagents.

[0020] A power switch 9, a forward / reverse switch 10 and a USB charging port 11 are installed on the outer wall of the shell 1. The transmission mechanism includes a motor 7 and a transmission gear 8 arranged inside the shell 1. The motor 7 is connected to the lithium battery 4 by wires, and the output end of the motor 7 is connected to the transmission gear 8. The output end of the transmission gear 8 is connected to the sleeve 2. The forward / reverse switch 10 changes the forward / reverse direction of the motor 7 by directly exchanging the wiring of the two phases of the motor 7, and forward and reverse rotation can be selected according to usage requirements.

[0021] The lithium battery 4 installed inside the shell 1 is a rechargeable lithium battery, which is not obstructed by wires and is small in size, making it more convenient to work in a narrow space such as a fume hood. The lithium battery 4 is connected to the motor 7 through wires, and the motor 7 drives the transmission gear 8, which in turn drives the sleeve 2 to rotate. The rotation of the sleeve 2 drives the cutter head 3 to work. A torque knob 5 is sleeved on the sleeve 2, and the work is performed by adjusting the torque knob 5 to an appropriate torque scale 6.

Claims

1. Electric torque wrench for digestion tank, characterized by: The electric torque wrench comprises a housing (1), a sleeve (2) and a cutter head (3); a lithium battery (4) and a transmission mechanism are installed in the housing (1); one end of the sleeve (2) is connected to the transmission mechanism, and the other end of the sleeve (2) is connected to the cutter head (3); the cutter head (3) is a cross cutter head made of polytetrafluoroethylene; a torque knob (5) is also sleeved on the sleeve (2); and the outer wall of the sleeve (2) is A torque scale (6) is provided on the upper portion for use with the torque knob (5).

2. The electric torque wrench for digestion tank as claimed in claim 1, characterized in that The transmission mechanism comprises a motor (7) and a transmission gear (8); the motor (7) is connected to a lithium battery (4) by electric wires; the output end of the motor (7) is connected to the transmission gear (8); and the output end of the transmission gear (8) is connected to the sleeve (2).

3. The electric torque wrench for digestion tank as claimed in claim 1, characterized in that A power switch (9), a forward / reverse switch (10) and a USB charging port (11) are mounted on the outer wall of the housing (1).

4. The electric torque wrench for digestion tank as claimed in claim 1, characterized in that Anti-slip stripes (12) and mounting hooks (13) are evenly distributed on the outer wall of the housing (1).

5. The electric torque wrench for digestion tank as claimed in claim 3, characterized in that The forward / reverse switch (10) changes the forward / reverse direction of the motor (7) by directly exchanging the wiring of two phases of the motor (7).

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