TWM520436U - Torque screwdriver - Google Patents

Description

Torque screwdriver

The present invention relates to a hand tool, and more particularly to a torque driver that facilitates adjustment and viewing reading.

A torque driver is a hand tool that can be preset with a torque value that can be used to control the amount of torque when locking a bolt or nut.

As shown in FIG. 6, the conventional torque driver 80 has a handle 81, a torsion device (not shown), a sub-joint 82 and an adjustment button 83. The handle 81 has an accommodation space therein. An inspection hole 810 is disposed at the near end of the circumferential surface, and the torsion device is disposed in the accommodating space of the handle 81, and the portion showing the torque value scale corresponds to the inspection hole 810, and the screwdriver connector 82 is inserted into the grip. The front end of the handle 81 is coupled to the torsion device. The end of the screwdriver connector 82 can be inserted and replaced with various types of screwdriver heads. The adjustment button 83 is rotatably assembled to the rear end of the handle 81 and coupled to the torque device. And an adjustment scale is provided on the outer peripheral surface for adjusting the torque value of the torque device.

The existing torque driver must preset the torque value before use, and the user scans the main scale displayed in the inspection hole 810 while rotating the adjustment button 83, and the main scale of the torque device and the sub-scale line on the adjustment button 83 are adjusted to After the preset value, you can start using the torque driver to lock the bolt or nut.

Since the existing torque driver pre-sets the torque, it is necessary to first adjust the main scale adjustment displayed in the inspection hole 810 to the desired single digit, and then continue to adjust the sub-scale adjustment of the rotation adjustment button 83 to the desired decimal. Therefore, the torque value can be accurately set. Therefore, the user is quite troublesome in setting the torque value of the existing torque driver, and it is not easy to view and read the current torque value, the main scale of the torque device and the adjustment button 83. The sub-scales need to be adjusted and aligned, which is quite inconvenient in the adjustment operation and the reading and reading, and there is still room for improvement.

In order to solve the above problems, the present invention provides a torque driver which can be conveniently adjusted and inspected to read a torque value, comprising: a handle having a hollow tubular shape and having a viewing hole on the circumferential surface; a torsion device The device is disposed inside the handle and is provided with a torsion sleeve; a sub-joint is disposed on the torsion sleeve and is coupled to the torsion device with the inner end and the outer end of the handle; The ring sleeve is disposed on the torsion sleeve of the torsion device, and is disposed inside the handle corresponding to the inspection hole, and includes at least two numerical wheels, a transmission wheel shaft, at least one transmission wheel, and a dial ring, wherein the value is The wheel can be driven in sequence, and arranged on the torsion sleeve adjacently; the transmission wheel shaft is fixed on the handle at the corresponding numerical wheel; the transmission wheel is respectively sleeved on the transmission wheel shaft and meshed with the phase Two adjacent numerical values; the toggle ring is fixedly coupled to the torsion sleeve and drives the numerical wheel on one side to drive the position in sequence; and an adjustment ring rotatably sleeved on the handle, and Pass the screwdriver connector out of it, And interlocking the sleeve in torsion;

Preferably, the at least two numerical value wheel forms an annular driven tooth on one end of the numerical wheel; the dial ring forms an annular driving tooth on the end surface facing the numerical wheel, and The drive tooth meshes with the driven tooth of the numerical wheel;

Preferably, the torsion sleeve has a fitting groove recessed on the outer circumferential surface; the numerical device comprises an elastic member and a stop ring, and the elastic member abuts against the inner wall of the handle. The other end is abutted against the adjacent numerical wheel; the stop ring is sleeved on the fitting groove of the torsion sleeve;

Preferably, the torsion sleeve has a fitting groove recessed on the outer circumferential surface; the numerical device comprises an elastic member and a stop ring, and the elastic member abuts against the inner wall of the handle. The other end is abutted against the adjacent numerical wheel; the stop ring is sleeved on the fitting groove of the torsion sleeve;

Preferably, the adjusting ring is urged to the torque sleeve through a fixing member;

Preferably, the dial ring is respectively provided with a locking member on opposite sides, and is fixedly coupled to the torque sleeve through the locking member;

Preferably, the handle is provided with a non-slip portion at the rear end;

Preferably, the numerical device has three numerical wheels and two transmission wheels.

According to the above structure, the torque generator of the present invention can simply and accurately complete the setting by rotating the adjustment ring when adjusting the torque value, and can instantly read the set torque value through the inspection hole on the handle, due to The numerical device displays the torque value in the manner of numerical wheel carry. Therefore, the user is more convenient and precise in adjusting the operation and viewing the reading.

Referring to FIG. 1 to FIG. 3, the torque driver of the present invention comprises a handle 10, a torque device 20, a sub-joint 30, a numerical device 40 and an adjustment ring 50, wherein the handle 10 has a hollow tubular shape, and A sliding portion 11 is disposed at the rear end, and a viewing hole 12 is disposed on the circumferential surface of the front end; the torsion device 20 is disposed inside the handle 10 and belongs to a common torque adjustment structure, which can be used to adjust the setting. The torsion force is provided with a torsion sleeve 21 at the front end of the torsion device 20, and a toroidal sleeve 210 is recessed on the outer circumferential surface of the torsion sleeve 21; the screwdriver joint 30 is disposed through the torsion sleeve 21 Up, and the inner end is coupled to the torsion device 20, the outer end is passed out of the handle 10 and can be replaced with a different size, type of the screwdriver head 31;

Referring to FIG. 2 to FIG. 5, the numerical device 40 is sleeved on the torsion sleeve 21 of the torsion device 20, and is disposed inside the handle 10 corresponding to the inspection hole 12. The numerical device 40 includes an elastic member 41 and three. The numerical wheel 42, the transmission wheel shaft 43, the two transmission wheels 44, a dial ring 45, and a stop ring 46, wherein one end of the elastic member 41 abuts against the inner wall flange of the handle 10, and the other end abuts The adjacent numerical wheel 42 is disposed on the torsion sleeve 21 adjacent to each other and sequentially driven from the outer side to the inner side, wherein the inner numerical wheel 42 abuts against the elastic member 41. Upper, outer numerical wheel 42 forms an annular driven tooth 420 on the outer end surface;

The transmission wheel shaft 43 is fixed to the inner wall of the handle 10 along the axial direction at the corresponding numerical wheel 42; the two transmission wheels 44 are respectively sleeved on the transmission wheel shaft 43 and located between the adjacent two numerical values 42 The driving wheel 44 is respectively engaged with the adjacent two numerical value wheels 42; the driving ring 45 is sleeved on the torsion sleeve 21, and a locking member 450 is respectively disposed on the opposite sides, through the locking member 450 and the torsion sleeve The fixed ring is formed on the inner end surface of the numerical wheel 42 to form an annular driving tooth 451, and the driving tooth 451 is engaged with the driven tooth 420 of the outer numerical wheel 42 to drive the numerical wheel 42. Rotating; the stop ring 46 is sleeved on the fitting groove 210 of the torsion sleeve 21 for restricting the sliding ring 45 and the numerical wheel 42 from slipping out of the torsion sleeve 21 or shifting;

The adjusting ring 50 is rotatably sleeved on the front end of the handle 10, and the screwdriver joint 30 is pierced from the center, and then pressed against the torsion sleeve 21 through a fixing member 51 to form a linkage structure.

When the torque generator of the present invention adjusts the set torque, the user can rotate the adjustment ring 50. Since the adjustment ring 50 and the torsion sleeve 21 are interlocking structures, the torque sleeve 21 can be rotated to adjust the torque device 20, and the adjustment ring 50 is adjusted. At the same time, the dial ring 45 is interlocked. When the dial ring 45 rotates, the driving teeth 451 engage the driven teeth 420 of the outer numerical wheel 42, so that the numerical wheel 42 can be rotated, and the other numerical wheels 42 are sequentially driven to rotate. At this time, the user can confirm the preset torque value through the inspection hole 12 of the grip 10.

According to the above structure and operation mode, the torque generator of the present invention can simply complete the setting by rotating the adjusting ring 50 when adjusting the torque value, and can be read immediately through the inspection hole 12 on the handle 10. The torque value is displayed because the numerical device 40 displays the torque value in such a manner that the numerical value wheel 42 is carried. Therefore, the user is more convenient and clear in the adjustment operation and the reading and reading.

10‧‧‧Handle
11‧‧‧Slip-stop
12‧‧‧View hole
20‧‧‧ Torque device
21‧‧‧Torque bushing
210‧‧‧Fixing groove
30‧‧‧ screwdriver connector
31‧‧‧Starter head
40‧‧‧Value device
41‧‧‧Flexible parts
42‧‧‧Value wheel
420‧‧‧ driven teeth
43‧‧‧ Transmission axle
44‧‧‧Drive wheel
45‧‧‧Toggle ring
450‧‧‧Locker
451‧‧‧ drive teeth
46‧‧‧stop ring
50‧‧‧Adjustment ring
51‧‧‧Fixed parts

Figure 1: A perspective view of the appearance of the novel torque driver. Figure 2: A partial cross-sectional perspective view of the torsion driver of the present invention. Figure 3 is a partial cross-sectional perspective view of the torque driver of the present invention. Figure 4 is an enlarged plan view showing a partial cross section of the prior art torque driver. Figure 5 is an enlarged plan view showing a partial cross section of the torque driver of the present invention. Figure 6 is a perspective view showing the appearance of an existing torque driver.

10‧‧‧Handle

11‧‧‧Slip-stop

12‧‧‧View hole

20‧‧‧ Torque device

21‧‧‧Torque bushing

30‧‧‧ screwdriver connector

31‧‧‧Starter head

40‧‧‧Value device

41‧‧‧Flexible parts

42‧‧‧Value wheel

50‧‧‧Adjustment ring

Claims (7)

A torque driver includes: a handle having a hollow tubular shape and having a viewing hole on a circumferential surface; a torsion device mounted on the inside of the handle and provided with a torsion sleeve; The joint is disposed on the torsion sleeve and is coupled to the torsion device at the inner end and the outer end to the handle; a numerical device is sleeved on the torsion sleeve of the torsion device and is disposed corresponding to the inspection hole The inside of the handle comprises at least two numerical wheels, a transmission wheel axle, at least one transmission wheel and a dial ring, wherein the numerical wheel can be sequentially driven into the position and arranged adjacent to the torque sleeve The transmission wheel shaft is fixed on the handle at the corresponding numerical wheel; the transmission wheel is respectively sleeved on the transmission wheel shaft and meshed with the adjacent two numerical wheel; the dial ring is fixedly coupled to the torque sleeve, and The numerical wheel on one side is driven to drive the position in sequence; and an adjusting ring is rotatably sleeved on the handle, and the driver connector is threaded out therefrom, and is coupled to the torque sleeve. The torque driver according to claim 1, wherein the at least two numerical values form an annular driven tooth on the end surface of the numerical wheel on the one side; the dial ring forms a ring on the end surface facing the numerical wheel. The driving teeth are engaged with the driven teeth of the numerical wheel with the driving teeth. The torque driver of claim 2, wherein the torsion sleeve has a fitting groove recessed on the outer circumferential surface; the numerical device comprises an elastic member and a stop ring, and the elastic member abuts against On the inner wall of the handle, the other end abuts against the adjacent numerical wheel; the stop ring is sleeved on the fitting groove of the torsion sleeve. The torque driver of claim 3, wherein the adjusting ring is urged to the torsion sleeve through a fixing member. The torque driver of claim 4, wherein the dial ring is respectively provided with a locking member on opposite sides, and is fixedly coupled to the torque sleeve through the locking member. A torque driver according to claim 5, wherein the grip is provided with a non-slip portion at the rear end. A torque driver according to any one of claims 1 to 6, wherein the numerical device has three numerical wheels and two transmission wheels.