Torque wrench for deep sea operation

Abstract

The invention discloses a torque wrench for deep sea operation, and relates to the technical field of torque wrenchs.The torque wrench comprises a machine shell and an iris mechanism arranged at a port of the machine shell, the iris mechanism comprises a guide groove and positioning blocks in sliding fit with the guide groove, and the multiple positioning blocks define an insertion groove; the fixing disc is used for assembling the positioning block; the motor is used for driving the fixed disc; the elastic piece is used for locking the guide groove and has a contraction state abutting against the guide groove, and in the contraction state, the fixing disc rotates relative to the guide groove, and the inner diameter of the insertion groove is adjustable. According to the torque wrench for deep sea operation, the positioning block deflects, the inner diameter of the inserting groove is reduced till the inner diameter is completely attached to a to-be-dismounted bolt, bolts of different specifications can be automatically attached, and sleeve limiters needing to be carried are reduced. And after the insertion groove corresponds to the bolt, the guide groove synchronously rotates along with the positioning block, so that the bolt is prevented from being excessively clamped in the continuous deflection process of the positioning block.

Description

Technical Field

[0001] The invention relates to the technical field of torque wrenches, and in particular to a torque wrench for deep-sea operations. Background Art

[0002] Torque wrenches used in deep-sea operations usually have high pressure resistance, high corrosion resistance and precise torque control functions to adapt to extreme environmental conditions, and the design should take into account the convenience of operation in confined spaces or adverse conditions.

[0003] In conjunction with the publication (announcement) number CN116252266A, the publication (announcement) date is 2023-06-13, and a torque wrench for deep-sea environment is disclosed, including a double-headed sleeve shaft, a spline is arranged in the middle part of the double-headed sleeve shaft, the double-headed sleeve shaft is connected to the ratchet transmission mechanism through the spline, the ratchet transmission mechanism is hinged to the piston assembly through a rotating shaft, and a horizontally arranged cylinder body is installed on the outside of the piston assembly, and a cylinder end cover is installed on the end of the cylinder body, and the cylinder body is also fixed to a support frame with an opening, and the ratchet transmission mechanism is arranged in the opening of the support frame, and the support frame limits the ratchet transmission mechanism in the axial direction of the double-headed sleeve shaft, and the bottom of the support frame is installed with the double-headed sleeve shaft through two clamps.

[0004] However, in the prior art including the above-mentioned patent, the specifications of the double-headed sleeve shaft are fixed, and different connecting heads are required to match with bolts of different specifications. When the bolts are of non-standard specifications, the connecting heads and the bolts are not completely matched, which can easily cause the bolts to slip. Summary of the invention

[0005] The purpose of the present invention is to provide a torque wrench for deep-sea operations to solve the above-mentioned problems.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: A torque wrench for deep-sea operation, comprising a housing, an iris mechanism arranged at a port of the housing, comprising a guide groove and a positioning block slidably matched on the guide groove, and a plurality of positioning blocks enclosed to form a slot;

[0007] Also included is a fixing plate for assembling the positioning block;

[0008] A motor for driving the fixed plate;

[0009] The elastic member used for locking the guide groove has a contracted state against the guide groove, and in the contracted state, the fixed disk is rotated relative to the guide groove and the inner diameter of the slot is adjustable.

[0010] As a preferred embodiment, it further comprises a rotating seat rotatably arranged at the port of the housing, on which a suction cup is arranged, a transmission plate is fixedly arranged on the suction cup, and a ball bearing that slides with the transmission plate is movably arranged on the housing;

[0011] The ball has a low position offset from the rotating seat.

[0012] Preferably, it also includes a clamping member which is radially slidably disposed on the fixed disk, and the clamping member locks the housing and the fixed disk when the ball is in the low position.

[0013] Preferably, the elastic member is provided with a stop block which slidably cooperates with the clamping member.

[0014] Preferably, it further comprises an adjusting mechanism for keeping the positioning block at a predetermined clamping angle, which comprises a transmission rod for driving the card member to unlock.

[0015] Preferably, the adjustment mechanism comprises:

[0016] An anti-skid pad is slidably disposed on the positioning block and extends out of the outer side of the positioning block;

[0017] A dial slidably disposed on the fixed plate;

[0018] a first spring for making the dial close to the positioning block;

[0019] The anti-skid pad moves synchronously with the dial.

[0020] Preferably, a driving gear is fixedly provided on the output shaft of the motor, the transmission rod is fixedly provided on the dial, and a spindle part engaging with the driving gear is provided on the dial.

[0021] Preferably, a plurality of rotating parts are rotatably arranged on the driving gear, and the spindle part is tangent to the rotating parts during the clamping process and drives the rotating parts to rotate.

[0022] Preferably, a deformation arc plate is provided on the rotating member, and a recessed portion is formed on the deformation arc plate. After the deformation arc plate is driven to bend, a long arc plate and a short arc plate are formed along the recessed portion to abut against the end of the spindle portion.

[0023] Preferably, a switch for controlling the power supply of the motor is further included, and a push rod for pushing the spindle part is arranged in the casing, and the push rod is electrically connected to the switch.

[0024] In the above technical solution, the present invention provides a torque wrench for deep-sea operations, which has the following beneficial effects: by deflecting the positioning block and reducing the inner diameter of the slot until the inner diameter is completely fitted with the bolt to be disassembled, bolts of different specifications can be automatically fitted, reducing the sleeve limiters that need to be carried. After the slot corresponds to the bolt, the guide groove rotates synchronously with the positioning block to avoid excessive clamping of the bolt during the continuous deflection of the positioning block. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 An overall three-dimensional schematic diagram provided for an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of a cross-section structure provided by an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the explosion structure of the iris mechanism provided by an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the positions of the positioning block, the dial, and the transmission rod provided in an embodiment of the present invention;

[0030] Figure 5 A schematic diagram of the positioning block structure provided by an embodiment of the present invention;

[0031] Figure 6 A schematic diagram of the positioning block structure provided by an embodiment of the present invention;

[0032] Figure 7 A schematic diagram of the structure of a rotating member provided in an embodiment of the present invention;

[0033] Figure 8 A schematic diagram of the transmission rod and the clamp structure provided by an embodiment of the present invention;

[0034] Fig. 9 A schematic diagram of the structure of a rotating member provided in an embodiment of the present invention;

[0035] Fig.10 The embodiment of the present invention provides Figure 2 A schematic diagram of the enlarged structure in the middle;

[0036] Fig.11 A schematic diagram of the elastic member and the stop block structure provided in an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] 1. Casing; 11. Stop block; 12. Elastic member; 2. Suction cup; 21. Transmission plate; 22. Rotating seat; 3. Positioning block; 301. Slot; 302. Anti-skid pad; 303. Oblique block; 304. Pressing plate; 305. Second spring; 31. Guide groove; 32. Fixed plate; 34. Clamp; 342. Third spring; 35. Dial; 36. First spring; 37. Spindle; 38. Transmission rod; 4. Switch; 5. Driving gear; 51. Mounting sleeve; 52. Rotating member; 521. Long arc plate; 522. Short arc plate; 523. Recessed portion; 53. Push rod; 54. Cylinder; 6. Ball bearing. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] like Figure 1-11 As shown, a torque wrench for deep-sea operation includes a housing 1, an iris mechanism arranged at a port of the housing 1, and an iris mechanism including a guide groove 31 and a positioning block 3 slidably fitted on the guide groove 31, and a plurality of positioning blocks 3 enclose to form a slot;

[0041] It also includes a fixing plate 32 for assembling the positioning block 3;

[0042] A motor for driving the fixed plate 32;

[0043] The elastic member 12 for locking the guide groove 31 has a contracted state in which it abuts against the guide groove 31 , and in the contracted state, the fixed plate 32 is allowed to rotate relative to the guide groove 31 and the inner diameter of the slot is adjustable.

[0044] Specifically, a pressing portion for pressing against the guide groove 31 is provided at the bend of the elastic member 12. The positioning block 3 is located between the guide groove 31 and the fixed disk 32, and the positioning block 3 is respectively slidably matched with the guide groove 31 and the fixed disk 32, and the motor is driven to drive the fixed disk 32 to rotate. The elastic member 12 in the initial state is in a contracted state. At this time, the elastic member 12 presses against the guide groove 31, and the fixed disk 32 rotates relative to the guide groove 31. During the rotation, the positioning block 3 is driven to deflect and the inner diameter of the slot is reduced until the inner diameter is completely fitted with the bolt to be disassembled and assembled, and can automatically fit bolts of different specifications including non-standard specifications, reducing the sleeve limiter that needs to be carried. Then, the elastic member 12 is unfolded. During the unfolding process of the elastic member 12, the angle of the bend becomes larger, and the pressing portion is driven away from the guide groove 31, so that the guide groove 31 can rotate freely.

[0045] At this time, the output shaft of the motor drives the fixed plate 32 to rotate, and the positioning block 3 on the fixed plate 32 rotates accordingly. Since the positioning block 3 is completely in contact with the bolt and the guide groove 31 can rotate freely, it will rotate synchronously with the positioning block 3 to avoid continuous deflection of the positioning block 3. The positioning block 3 is tightly attached to and clamps the bolt to rotate, so that the bolt can be easily disassembled and assembled through the driving force of the motor.

[0046] In the above technology, the elastic member 12 can be manually bent by pressing the elastic member 12 by hand after the slot and the bolt are fitted, or an electric telescopic rod can be installed and the elastic member 12 can be pressed by the extension part of the electric telescopic rod, or other driving methods known to those skilled in the art can be used.

[0047] In the above technology, the positioning block 3 is deflected and the inner diameter of the slot is reduced until the inner diameter is completely fitted with the bolt to be disassembled and assembled, so that bolts of different specifications can be automatically fitted, reducing the sleeve limiters that need to be carried. After the slot corresponds to the bolt, the guide groove 31 rotates synchronously with the positioning block 3 to avoid excessive clamping of the bolt during the continuous deflection of the positioning block 3.

[0048] As a further embodiment provided by the present invention, it also includes a rotating seat 22 rotatably arranged at the end of the housing 1, on which a suction cup 2 is arranged, a transmission plate 21 is fixedly arranged on the suction cup 2, and a ball 6 movably arranged on the housing 1 to slide with the transmission plate 21;

[0049] The ball 6 has a low position offset from the swivel seat 22 .

[0050] Specifically, the suction cup 2 is fixedly arranged on the rotating seat 22, and the suction cup 2 is folded under pressure and drives the transmission plate 21 to move in the rotating seat 22, the elastic member 12 is arranged in the rotating seat 22, and the stop block 11 extends out of the rotating seat 22 and is located in the housing 1. When the staff works underwater, the housing 1 can be fixed by first adsorbing the suction cup 2 on the surface of the object to reduce the driving force of the water flow on the housing 1. Since the ball 6 is initially stuck between the rotating seat 22 and the housing 1, it can prevent the rotating seat 22 from rotating during the fixing process and interfere with the fixing effect. Then the housing 1 is pushed toward the surface of the object, and the water in the suction cup 2 is squeezed out by squeezing the suction cup 2, and the position of the suction cup 2 and the housing 1 is further stabilized by the external water pressure. At the same time, the suction cup 2 drives the transmission plate 21 to squeeze the ball 6 and move downward from the initial position until the ball 6 is staggered with the rotating seat 22. At this time, the rotating seat 22 is not blocked by the ball 6 and can rotate freely, which is convenient for the staff to adjust the angle of the operating housing 1 while tightening the bolts.

[0051] As another embodiment further provided by the present invention, it also includes a clamping member 34 radially slidably disposed on the fixed disk 32, and the clamping member 34 locks the housing 1 and the fixed disk 32 when the ball 6 is in the low position.

[0052] Specifically, the clamp 34 is provided with a third spring 342 for pushing, so that the upper end of the clamp 34 is pushed and located in the rotating seat 22 in the default state, and the ball 6 is located above the clamp 34. When the ball 6 is squeezed and moved downward by the transmission plate 21, the clamp 34 is driven to be located between the housing 1 and the fixed plate 32, and the housing 1 and the fixed plate 32 are locked together.

[0053] When the casing 1 and the fixed plate 32 are locked, the swivel seat 22 can rotate relative to the casing 1, and the elastic member 12 in the swivel seat 22 abuts against the guide groove 31. The swivel seat 22 is fixed to the surface of the mounting bolt through the suction cup 2. Then the staff can rotate the casing 1, and the casing 1 drives the fixed plate 32 to rotate relative to the guide groove 31. At this time, the positioning block 3 is deflected and close to the bolt. This process is manually operated by the staff, so that the staff can feel the tightening condition of the bolt in time, adapt the inner diameter of the slot, and avoid excessive output torque when the motor is driven, which causes the positioning block 3 to be excessively clamped and squeezed to the bolt.

[0054] As another embodiment further provided by the present invention, it also includes an adjustment mechanism for keeping the positioning block 3 at a predetermined clamping angle, which includes a transmission rod 38 for driving the clamping member 34 to unlock.

[0055] Specifically, when the positioning block 3 is in close contact with the bolt, the transmission rod 38 is driven to slide, and the clamp 34 and the transmission rod 38 are slidably matched, as shown in FIG. Figure 8 As shown, the transmission rod 38 moves along the axial direction of the fixed plate 32 and pushes the clamping member 34 downward, and the clamping member 34 enters the groove provided on the fixed plate 32, so that the clamping member 34 is no longer located between the fixed plate 32 and the housing 1. At this time, rotating the housing 1 will no longer drive the fixed plate 32 to rotate, and the fixed plate 32 drives the positioning block 3 to stop and maintain the current clamping angle;

[0056] In the above technology, a hydraulic cylinder or an electric telescopic rod can be set to drive the transmission rod 38 to move, and a pressure sensor can be set on the positioning block 3. The pressure sensor has a built-in preset value. When the pressure of the positioning block 3 on the bolt is greater than the preset value, a signal is sent to the hydraulic cylinder or the electric telescopic rod, thereby driving the transmission rod 38 to move and stopping the positioning block 3.

[0057] As another embodiment further provided by the present invention, the adjustment mechanism includes:

[0058] The anti-skid pad 302 is slidably disposed on the positioning block 3 and extends out of the outer side of the positioning block 3;

[0059] A dial 35 slidably disposed on the fixed plate 32;

[0060] A first spring 36 for making the dial 35 close to the positioning block 3;

[0061] The anti-skid pad 302 and the dial 35 keep moving synchronously.

[0062] Specifically, a pressure plate 304 is slidably provided in the positioning block 3 and slidably cooperates with the anti-slip pad 302, and a slot 301 is provided on the positioning block 3, and an inclined block 303 is slidably provided in the slot 301 and slidably pushed by the pressure plate 304, and a second spring 305 is provided on the pressure plate 304 for pushing the anti-slip pad 302 out of the outside of the positioning block 3. When the positioning block 3 is clamping the bolt, the anti-skid pad 302 is subjected to the reaction force of the bolt, and the bolt retracts into the positioning block 3, thereby squeezing the pressure plate 304. The pressure plate 304 drives the inclined block 303 to slide along the slot 301, and the inclined block 303 is squeezed onto the dial 35. At this time, the first spring 36 on the dial 35 contracts and accumulates force, so that the dial 35 and the anti-skid pad 302 keep moving synchronously, and the dial 35 covers the movable path of the slot 301, so that when the position of the positioning block 3 changes, the slot 301 still corresponds to the dial 35, and the elastic force of the first spring 36 on the dial 35 is transmitted to the anti-skid pad 302, which has a better anti-skid effect and avoids the problem of the bolt slipping underwater.

[0063] As another embodiment further provided by the present invention, a driving gear 5 is fixedly provided on the output shaft of the motor, a transmission rod 38 is fixedly provided on the dial 35 , and a spindle portion 37 engaged with the driving gear 5 is provided on the dial 35 .

[0064] Specifically, the housing 1 is equipped with a mounting sleeve 51, and the driving gear 5 is rotatably disposed in the mounting sleeve 51. The anti-skid pad 302 is squeezed by the bolt and retracts into the positioning block 3, and the anti-skid pad 302 squeezes the pressure plate 304, and the pressure plate 304 drives the inclined block 303 to slide along the slot 301, and the inclined block 303 is squeezed onto the dial 35. At this time, the first spring 36 on the dial 35 contracts and accumulates force, and the dial 35 drives the transmission rod 38 to move along the axial direction, so that the clamping member 34 enters the groove provided on the fixed plate 32, and the clamping member 34 is no longer located between the housing 1 and the fixed plate 32, so that the positioning block 3 stops deflecting and remains in a position close to the bolt. The spindle part 37 is engaged with the driving gear 5, and the driving gear 5 is driven to rotate by the output torque of the motor, thereby driving the pressure plate 304 to rotate, so that the positioning block 3 automatically stops deflecting after the bolt is fitted, and the driving source can be switched. The driving source is changed to a motor through the engagement of the spindle part 37, and it automatically switches between manual drive and motor drive, saving time and effort.

[0065] As another embodiment further provided by the present invention, a plurality of rotating members 52 are rotatably provided on the driving gear 5 , and the spindle portion 37 is tangent to the rotating member 52 during the clamping process and drives the rotating member 52 to rotate.

[0066] Specifically, the rotating member 52 is an eccentric wheel structure, and a deformable arc plate is provided on the rotating member 52, and a recessed portion 523 is provided on the deformable arc plate. After the deformable arc plate is driven to bend, a long arc plate 521 and a short arc plate 522 are formed along the recessed portion 523 to abut against the end of the spindle portion 37. The spindle portion 37 will be tangent to the deformable arc plate during the clamping process, and the tangential force drives the rotating member 52 to deflect. At the same time, the deformable arc plate is deformed by the push of the spindle portion 37, so that the long arc plate 521 and the short arc plate 522 are bent along the recessed portion 523, and the bending angle is approximately vertical. At this time, the long arc plate 521 and the short arc plate 522 are respectively abutted against two adjacent truncated cone-shaped inclined surfaces of the spindle portion 37, and the rotating member 52 clamps the spindle portion 37, so that the connection between the rotating member 52 and the driving gear 5 is relatively stable.

[0067] As another embodiment further provided by the present invention, it also includes a switch 4 for controlling the power supply of the motor. A push rod 53 for pushing the spindle part 37 is provided in the housing 1, and the push rod 53 is electrically connected to the switch 4.

[0068] Specifically, a cylinder 54 is provided in the casing 1. After the bolts are disassembled and assembled, the switch 4 is pressed to stop the motor and trigger the cylinder 54 at the same time. The cylinder 54 supplies air to the push rod 53, and the push rod 53 pushes the spindle part 37. The spindle part 37 overcomes the clamping force of the rotating member 52 and disengages from the rotating member 52, and then retracts into the fixed disk 32. At this time, the fixed disk 32 is disengaged from the driving gear 5, and because the spindle part 37 moves with the transmission rod 38, the clamping member 34 is driven by the transmission rod 38 to slide radially to the outer periphery of the fixed disk 32. The clamping member 34 is located between the fixed disk 32 and the casing 1 under the push of the third spring 342, so that the fixed disk 32 is braked, so that the fixed disk 32 is braked after the motor stops, so as to avoid the inertia driving the fixed disk 32 to continue to rotate.

[0069] Working principle: When working underwater, the staff can fix the casing 1 by first adsorbing the suction cup 2 to the surface of an object, and then push the casing 1 toward the surface of the object. By squeezing the suction cup 2, the water in the suction cup 2 is squeezed out, and the position of the suction cup 2 and the casing 1 is further stabilized by the external water pressure. At the same time, the suction cup 2 drives the transmission plate 21 to squeeze the ball 6 and move downward from the initial position until the ball 6 is offset from the rotating seat 22. At this time, the rotating seat 22 is not blocked by the ball 6 and can rotate freely.

[0070] When the ball 6 is squeezed downward by the transmission plate 21, the clamping member 34 is driven to be located between the casing 1 and the fixed plate 32. At this time, the casing 1 and the fixed plate 32 are locked together. The staff can rotate the casing 1, and the casing 1 drives the fixed plate 32 to rotate relative to the guide groove 31. At this time, the positioning block 3 is deflected and close to the bolt.

[0071] When the positioning block 3 is clamping the bolt, the anti-skid pad 302 is subjected to the reaction force of the bolt, and the bolt retracts into the positioning block 3, thereby squeezing the pressure plate 304. The pressure plate 304 drives the inclined block 303 to slide along the slot 301, and the inclined block 303 is squeezed onto the dial 35. At this time, the first spring 36 on the dial 35 contracts and accumulates force, so that the dial 35 and the anti-skid pad 302 keep moving synchronously.

[0072] The dial 35 drives the transmission rod 38 to move along the axial direction, so that the clamping member 34 enters the groove opened on the fixed plate 32. The clamping member 34 is no longer located between the housing 1 and the fixed plate 32, so that the positioning block 3 stops deflecting and remains in a position close to the bolt. The spindle part 37 is engaged with the driving gear 5, and the driving gear 5 is driven to rotate through the output torque of the motor, thereby driving the pressure plate 304 to rotate.

[0073] During the clamping process, the spindle portion 37 will be tangent to the deformed arc plate, and the tangential force drives the rotating part 52 to deflect. At the same time, the deformed arc plate is deformed by the push of the spindle portion 37, so that the long arc plate 521 and the short arc plate 522 are bent along the recessed portion 523, and the bending angle is approximately vertical. At this time, the long arc plate 521 and the short arc plate 522 are respectively against two adjacent conical inclined surfaces of the spindle portion 37, and the rotating part 52 clamps the spindle portion 37.

[0074] After the bolts are disassembled and assembled, the switch 4 is pressed to stop the motor and trigger the cylinder 54 at the same time. The cylinder 54 supplies air to the push rod 53, and the push rod 53 pushes the spindle part 37. The spindle part 37 overcomes the clamping force of the rotating member 52 and disengages from the rotating member 52, and then retracts into the fixed disk 32. At this time, the fixed disk 32 is disengaged from the driving gear 5, and because the spindle part 37 moves with the transmission rod 38, the clamping member 34 is driven by the transmission rod 38 to slide radially to the outer periphery of the fixed disk 32. The clamping member 34 is located between the fixed disk 32 and the housing 1 under the push of the third spring 342, so that the fixed disk 32 is braked.

[0075] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A torque wrench for deep-sea operations, comprising a housing (1), characterized in that: It comprises an iris mechanism arranged at a port of a housing (1), comprising a guide groove (31) and a positioning block (3) slidably matched on the guide groove (31), and a plurality of positioning blocks (3) are enclosed to form a slot; It also includes a fixing plate (32) for assembling the positioning block (3); A motor for driving the fixed disk (32); The elastic member (12) is used to lock the guide groove (31), and has a contracted state in which it abuts against the guide groove (31). In the contracted state, the fixed disk (32) rotates relative to the guide groove (31), and the inner diameter of the slot is adjustable.

2. A torque wrench for deep sea operations according to claim 1, characterized in that: It also includes a rotating seat (22) rotatably arranged at a port of the housing (1), on which a suction cup (2) is arranged, a transmission plate (21) is fixedly arranged on the suction cup (2), and a ball (6) movably arranged on the housing (1) and slidably engaged with the transmission plate (21); The ball (6) has a low position offset from the rotating seat (22).

3. A torque wrench for deep sea operations according to claim 2, characterized in that: It also includes a clamping member (34) radially slidably disposed on the fixed disk (32), wherein the clamping member (34) locks the housing (1) and the fixed disk (32) when the ball (6) is in a low position.

4. A torque wrench for deep sea operations according to claim 3, characterized in that: The elastic member (12) is provided with a stop block (11) that slidably cooperates with the clamping member (34).

5. A torque wrench for deep sea operations according to claim 3, characterized in that: It also includes an adjustment mechanism for keeping the positioning block (3) at a predetermined clamping angle, which includes a transmission rod (38) for driving the clamping member (34) to unlock.

6. A torque wrench for deep sea operations according to claim 5, characterized in that: The regulating mechanism comprises: An anti-slip pad (302) slidably disposed on the positioning block (3) and extending outward from the outside of the positioning block (3); A dial (35) slidably disposed on the fixed plate (32); A first spring (36) for making the dial (35) closely contact the positioning block (3); The anti-slip pad (302) and the dial (35) move synchronously.

7. A torque wrench for deep sea operations according to claim 6, characterized in that: A driving gear (5) is fixedly arranged on the output shaft of the motor, the transmission rod (38) is fixedly arranged on the dial (35), and the dial (35) is provided with a spindle portion (37) which is engaged with the driving gear (5).

8. A torque wrench for deep sea operations according to claim 7, characterized in that: A plurality of rotating members (52) are rotatably arranged on the driving gear (5), and the spindle portion (37) is tangent to the rotating members (52) during the clamping process and drives the rotating members (52) to rotate.

9. A torque wrench for deep sea operations according to claim 8, characterized in that: The rotating member (52) is provided with a deformable arc plate, and a recessed portion (523) is formed on the deformable arc plate. After being driven to bend, the deformable arc plate forms a long arc plate (521) and a short arc plate (522) along the recessed portion (523) that abut against the end of the spindle portion (37).

10. A torque wrench for deep sea operations according to claim 7, characterized in that: It also includes a switch (4) for controlling the power supply of the motor. A push rod (53) for pushing the spindle part (37) is arranged in the housing (1), and the push rod (53) is electrically connected to the switch (4).

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