CN114393539A

CN114393539A - Torque wrench with preset torque value

Info

Publication number: CN114393539A
Application number: CN202111540192.1A
Authority: CN
Inventors: 吴锦淼; 杨尚兵; 刘彬; 梁子强
Original assignee: Wuhu Ruijin Medical Instrument and Device Co Ltd
Current assignee: Wuhu Ruijin Medical Instrument and Device Co Ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-04-26
Anticipated expiration: 2041-12-16
Also published as: CN114393539B

Abstract

The invention discloses a torque wrench with a preset torque value, which belongs to the technical field of torque wrenches and comprises a sleeve, a torque limiting mechanism, an energy storage mechanism and a liquid spraying mechanism, wherein the torque limiting mechanism is arranged in the sleeve, the liquid spraying mechanism is arranged at one end of the sleeve, the energy storage mechanism is arranged between the torque limiting mechanism and the liquid spraying mechanism, the torque limiting mechanism comprises a mandrel connected with the interior of the sleeve and a first gear ring fixedly connected on the mandrel, a second gear ring is movably connected on the mandrel at a position close to the first gear ring, the liquid spraying mechanism comprises an air storage bag fixedly connected at the end part of the sleeve and a liquid storage bottle detachably connected at one end of the air storage bag, and one end of the liquid storage bottle far away from the air storage bag is connected with a spray head. The torsion limiting mechanism is arranged, so that the aim of adjusting and presetting a torsion value is fulfilled. Through setting up hydrojet mechanism and energy storage mechanism for the spanner both can regard as the instrument of installation screw and can regard as disinfection instrument, has improved operation efficiency.

Description

Torque wrench with preset torque value

Technical Field

The invention relates to the technical field of torque wrenches, in particular to a torque wrench with a preset torque value.

Background

Orthopedic treatment operations are nowadays more and more emphasized by physicians and patients, and also more and more emphasized by medical units. In the bone fracture surgery, various orthopedic screws and bone plates are connected to bones by mainly depending on various screwdrivers and wrenches, so as to play a role in auxiliary fixation. The bone-knitting operation can be divided into small bone, large bone, finger bone and so on, and the types and sizes of the used screws and bone plates are different because of the difference of the sizes of the bones in the operation.

The existing wrench tool is basically fixed, the locking degree of the screw is basically controlled by a doctor, the locking degree is an unstable factor and an unsafe factor, and the postoperative effect cannot be evaluated. Theoretically speaking, the bearable forces of the large bone, the small bone, the phalanx and the like are different, and the torque force value (locking degree) of the corresponding screw needs to be calculated in a matched mode to achieve a better effect. And sterilization tools are required to sterilize the screws and the bone plate near the screws during the operation to inactivate bacteria, but frequent tool changes during the operation greatly reduce the efficiency of the operation, resulting in increased risk of the operation.

In view of the above problems, the present invention provides a torque wrench with a preset torque value.

Disclosure of Invention

The invention aims to provide a torque wrench with a preset torque value, wherein a torque limiting mechanism is arranged, when a screw is locked, if the torque of the wrench reaches the preset maximum torque value, a first gear ring is separated from a second gear ring, a sleeve and a mandrel rotate relatively, the screw cannot be locked any more, so that bones are protected, and the positions of the first gear ring and the mandrel can be adjusted by screwing a screw sealing cap, so that the pressure on a disc spring is adjusted, and the aim of adjusting and presetting the torque value is fulfilled. Through setting up hydrojet mechanism and energy storage mechanism, when locking the screw, the gas storage bag stores the jet distance that can enough increase the antiseptic solution to gas, can open and close the valve as required again, disinfects at any time, and is easy and simple to handle for the spanner both can regard as the instrument of installation screw and can regard as the disinfection instrument, reaches the dual-purpose effect of a thing, and medical personnel do not need frequent change instrument, has improved operation efficiency, thereby has solved the problem among the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a torque wrench with a preset torque value comprises a sleeve, a torque limiting mechanism, an energy storage mechanism and a liquid spraying mechanism, wherein the torque limiting mechanism is installed inside the sleeve, the liquid spraying mechanism is installed at one end of the sleeve, and the energy storage mechanism is installed between the torque limiting mechanism and the liquid spraying mechanism.

The torsion limiting mechanism comprises a mandrel and a first gear ring, wherein the mandrel is connected to the interior of the sleeve, the first gear ring is fixedly connected to the mandrel, and a second gear ring is movably connected to the mandrel at a position close to the first gear ring.

The liquid spraying mechanism comprises a gas storage bag fixedly connected to the end of the sleeve and a liquid storage bottle detachably connected to one end of the gas storage bag, and one end, far away from the gas storage bag, of the liquid storage bottle is connected with a spray head.

Furthermore, the first gear ring is provided with annular first skewed tooth for the one end of second gear ring, and the second gear ring is provided with annular second skewed tooth for the one end of first gear ring, and the spout has all been seted up to the both sides of the eccentric shaft far away from the second gear ring, has placed the steel ball between telescopic inner wall and the spout.

Further, telescopic inside is provided with the dish spring, the equal fixedly connected with retaining ring in both ends of dish spring, the one end and the second ring gear butt of dish spring, the other end and the sleeve inner wall butt of dish spring, and telescopic inside is being close to the one end threaded connection of first ring gear and is having the screw thread sealing cap, screw thread sealing cap and first ring gear joint.

Furthermore, one end, far away from the sleeve, of the air storage bag is fixedly connected with an air outlet pipe, the end part of the air outlet pipe is provided with external threads, and a valve is arranged on the air outlet pipe.

Further, the one end fixedly connected with interface of stock solution bottle, the inside of interface is provided with the internal thread, and the one end fixedly connected with that the interface was kept away from to the stock solution bottle can be around the tubular metal resonator, can keep away from the one end fixedly connected with shower nozzle of stock solution bottle around the tubular metal resonator, through hose through connection between shower nozzle and the stock solution bottle, the inside of shower nozzle is provided with the check valve.

Further, one side fixedly connected with even board of mandrel is kept away from to the retaining ring, one side of even board is rotated and is connected with two and removes the wheel, it is connected with two tight pulleys to rotate in the position department of being close to removing the wheel on the telescopic inner wall, telescopic inside is in the fixedly connected with inflator of position department of being close to the gas storage bag, through connection has the pipe between inflator and the gas storage bag, the one end that the pipe was kept away from to the inflator is provided with the piston rod, be provided with the rope between piston rod and the removal wheel, the one end and the telescopic inner wall fixed connection of rope, the other end of rope is walked around the tight pulley in turn and is removed the wheel and fixed connection is at the tip of piston rod, and be connected with reset spring between the tip of piston rod and the telescopic inner wall.

Further, the mandrel is close to the one end fixedly connected with fast-assembling mouth of gas storage bag, and the sleeve is kept away from the one end of fast-assembling mouth and is articulated to have a handle, and the handle is pasted with the telescopic junction and is connected with the rubber sleeve, but the internally mounted of rubber sleeve has deflection mechanism between handle and the sleeve.

Furthermore, the deflectable mechanism comprises a locking wheel and a locking rod, the locking wheel is fixedly connected to one side of the end portion of the sleeve, a plurality of conical grooves are formed in the locking wheel in the circumferential direction of the locking wheel, the locking rod is movably connected to one side, close to the locking wheel, of the end portion of the handle, the locking rod is conical, and a driving lever is fixedly connected to one side of the locking rod.

Further, the tip of handle is kept away from the spacing wheel of one side fixedly connected with of locking wheel, and spacing wheel is located the articulated center pin of handle, and spacing takes turns to and has seted up a plurality of dovetail groove along the circumferencial direction of spacing wheel, and telescopic one side is located swing joint at the position department of being close to spacing wheel has the gag lever post, and the one end that the gag lever post is close to spacing wheel is trapezoidal.

Further, the outer wall of handle is the silica gel material, and the sleeve is close to the one end threaded connection of fast-assembling mouth and has the closing cap.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the torque wrench with the preset torque value, the torque limiting mechanism is arranged, when the screw is locked, if the torque of the wrench reaches the preset maximum torque value, the first gear ring is separated from the second gear ring, the sleeve and the mandrel rotate relatively, the screw cannot be locked, so that bones are protected, the positions of the first gear ring and the mandrel can be adjusted by screwing the screw sealing cap, the pressure on the disc spring is adjusted, and the purpose of adjusting and presetting the torque value is achieved.

2. According to the torque wrench with the preset torque value, the liquid spraying mechanism and the energy storage mechanism are arranged, when a screw is locked, the energy storage mechanism can store energy once when the maximum torque value is reached once, the air storage bag is inflated once, namely the air storage bag is inflated once after one screw is installed, when the screw and a bone plate near the screw need to be disinfected, the valve is opened, disinfectant liquid in the liquid storage bottle is sprayed out of the spray head to be disinfected, and a worker can adjust the liquid spraying angle of the spray head by adjusting the bending angle of the metal pipe, so that the spraying effect of the disinfectant liquid is improved. The gas storage bag can be stored gas and the jet distance of the disinfectant can be increased, the valve can be opened and closed as required, disinfection can be performed at any time, the operation is simple and convenient, the spanner can be used as a tool for installing screws and a disinfection tool, the dual-purpose effect of one object is achieved, medical workers do not need to frequently replace tools, and the operation efficiency is improved.

3. According to the torque wrench with the preset torque value, the deflectable mechanism is arranged, when the position of a screw is not easy to mount, the handle is rotated through the deflectable mechanism, so that a certain angle is formed between the handle and the sleeve, the screw is convenient to lock and dismount, the deflectable mechanism and the torque limiting mechanism are not in conflict, and the torque limiting mechanism still plays a role after the handle rotates for a certain angle.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front cross-sectional view of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic view of the first and second ring gears of the present invention;

FIG. 4 is a schematic view of the connection structure of the locking wheel of the present invention;

FIG. 5 is a schematic view of a connection structure of the spacing wheel of the present invention;

FIG. 6 is an enlarged view of portion A of FIG. 2 according to the present invention;

FIG. 7 is an enlarged view of portion B of FIG. 2 according to the present invention;

FIG. 8 is a schematic view showing a connection structure of the gas cylinder of the present invention;

FIG. 9 is a schematic view of the connection structure of the air reservoir of the present invention;

fig. 10 is a schematic view of the connection structure of the liquid storage bottle of the present invention.

In the figure: 1. a sleeve; 2. a handle; 3. a rubber sleeve; 4. a torque limiting mechanism; 41. a mandrel; 42. a first ring gear; 421. a first helical tooth; 43. a second ring gear; 431. a second helical tooth; 432. a chute; 433. steel balls; 44. a disc spring; 441. a retainer ring; 45. sealing a cap by screw thread; 5. an energy storage mechanism; 51. connecting plates; 52. a moving wheel; 53. a fixed wheel; 54. a rope; 55. a return spring; 56. an air cylinder; 57. a piston rod; 58. a conduit; 6. a liquid spraying mechanism; 61. a gas storage bag; 62. an air outlet pipe; 63. a valve; 64. a liquid storage bottle; 65. an interface; 66. a coilable metal tube; 67. a spray head; 7. quickly mounting the opening; 8. a deflectable mechanism; 81. a locking wheel; 82. a locking lever; 83. a deflector rod; 84. a limiting wheel; 85. a limiting rod; 9. and (7) sealing the cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a torque wrench with a preset torque value includes a sleeve 1, a torque limiting mechanism 4, an energy storing mechanism 5, and a liquid spraying mechanism 6, wherein the torque limiting mechanism 4 is installed inside the sleeve 1, the liquid spraying mechanism 6 is installed at one end of the sleeve 1, and the energy storing mechanism 5 is installed between the torque limiting mechanism 4 and the liquid spraying mechanism 6.

Referring to fig. 2-3, the torque force limiting mechanism 4 includes a mandrel 41 connected inside the sleeve 1 and a first gear ring 42 fixedly connected to the mandrel 41, a second gear ring 43 is movably connected to the mandrel 41 at a position close to the first gear ring 42, an annular first helical tooth 421 is disposed at one end of the first gear ring 42 relative to the second gear ring 43, an annular second helical tooth 431 is disposed at one end of the second gear ring 43 relative to the first gear ring 42, sliding grooves 432 are disposed at both sides of the second gear ring 43 away from the mandrel 41, and steel balls 433 are disposed between the inner wall of the sleeve 1 and the sliding grooves 432. When the screw is locked, the mandrel 41 is fixedly connected with the screw driver, if the maximum torque force value is not reached, the first helical teeth 421 and the second helical teeth 431 are meshed together, and after the maximum torque force value is reached, the first helical teeth 421 and the second helical teeth 431 are disengaged, and the second gear ring 43 is separated from the first gear ring 42.

Referring to fig. 2, a disc spring 44 is arranged inside the sleeve 1, two ends of the disc spring 44 are fixedly connected with retaining rings 441, one end of the disc spring 44 abuts against the second gear ring 43, the other end of the disc spring 44 abuts against the inner wall of the sleeve 1, a threaded sealing cap 45 is connected to one end of the inside of the sleeve 1 close to the first gear ring 42 in a threaded manner, and the threaded sealing cap 45 is connected with the first gear ring 42 in a clamped manner. After the maximum torque force value is reached, the second gear ring 43 is separated from the first gear ring 42, the second gear ring 43 compresses the disc spring 44 through the retaining ring 441, and after the sleeve 1 drives the second gear ring 43 to rotate by one tooth position, the second gear ring 43 moves towards the first gear ring 42 through the elastic force of the disc spring 44, and the first helical teeth 421 are meshed with the second helical teeth 431 again. By screwing the screw cap 45, the positions of the first ring gear 42 and the spindle 41 can be adjusted, so that the pressure on the disc spring 44 is adjusted, and the aim of adjusting and presetting the torque force value is fulfilled.

Referring to fig. 1-2, 8 and 9, the liquid spraying mechanism 6 includes a gas storage bag 61 fixedly connected to an end portion of the sleeve 1 and a liquid storage bottle 64 detachably connected to one end of the gas storage bag 61, one end of the liquid storage bottle 64 far away from the gas storage bag 61 is connected with a nozzle 67, one end of the gas storage bag 61 far away from the sleeve 1 is fixedly connected with an air outlet pipe 62, an external thread is arranged at an end portion of the air outlet pipe 62, and a valve 63 is arranged on the air outlet pipe 62. One end fixedly connected with interface 65 of stock solution bottle 64, the inside of interface 65 is provided with the internal thread, and the one end fixedly connected with that interface 65 was kept away from to stock solution bottle 64 can wind tubular metal resonator 66, can wind tubular metal resonator 66 and keep away from the one end fixedly connected with shower nozzle 67 of stock solution bottle 64, through hose through connection between shower nozzle 67 and the stock solution bottle 64, the inside of shower nozzle 67 is provided with the check valve. When the screw is locked, energy storage can be carried out once by the energy storage mechanism 5 every time a maximum torque force value is reached, the gas storage bag 61 is inflated once, namely, the gas storage bag 61 is inflated once after a screw is installed, a certain amount of gas can be contained in the space inside the gas storage bag 61, when the screw and the vicinity of the screw need to be disinfected, the valve 63 is opened, the gas inside the gas storage bag 61 enters the liquid storage bottle 64, the air pressure inside the liquid storage bottle 64 is increased, the one-way valve inside the spray head 67 is pushed open, disinfectant water inside the liquid storage bottle 64 is sprayed out from the spray head 67, disinfection is carried out, the metal pipe 66 can be wound to form a metal tubular product, the spray angle of the spray head 67 can be adjusted freely, and the spray effect of disinfectant is improved. The gas storage bag 61 can increase the spraying distance of the disinfectant, and can open and close the valve 63 according to the requirements to disinfect at any time, so that the operation is simple and convenient.

Referring to fig. 2, 6 and 7, a connecting plate 51 is fixedly connected to one side of the retaining ring 441 away from the mandrel 41, two moving wheels 52 are rotatably connected to one side of the connecting plate 51, two fixed wheels 53 are rotatably connected to the inner wall of the sleeve 1 at positions close to the moving wheels 52, an air cylinder 56 is fixedly connected to the inside of the sleeve 1 at positions close to the air storage bag 61, a guide tube 58 is connected between the air cylinder 56 and the air storage bag 61 in a penetrating manner, a piston rod 57 is arranged at one end of the air cylinder 56 away from the guide tube 58, a rope 54 is arranged between the piston rod 57 and the moving wheels 52, one end of the rope 54 is fixedly connected to the inner wall of the sleeve 1, the other end of the rope 54 alternately bypasses the fixed wheels 53 and the moving wheels 52 and is fixedly connected to the end of the piston rod 57, and a return spring 55 is connected between the end of the piston rod 57 and the inner wall of the sleeve 1. When the disc spring 44 is compressed to reach the maximum torsion value, the disc spring 44 pulls the moving wheel 52 through the connecting plate 51, the moving wheel 52 pulls the rope 54, the moving wheel 52 is matched with the fixed wheel 53 due to the fact that the compressed stroke of the disc spring 44 is small, the moving stroke of the disc spring 44 can be expanded by multiple times when the moving wheel 52 is pulled, the expanded stroke is reflected on the connecting end of the rope 54 and the piston rod 57, finally, the rope 54 pulls the piston rod 57 to move for a distance, and the moving distance is far larger than the compression distance of the disc spring 44. When the piston rod 57 is pulled, the interior of the air cylinder 56 is inflated, and then the disc spring 44 is reset, the piston rod 57 is pushed towards the interior of the air cylinder 56 by the elastic force of the reset spring 55, so that the air in the interior of the air cylinder 56 enters the interior of the air storage bag 61, the purpose of inflating the interior of the air storage bag 61 is realized, and the operation is repeated, and the purpose of continuous energy inflation is achieved.

Referring to fig. 1, one end of the mandrel 41 close to the air storage bag 61 is fixedly connected with a quick-assembly opening 7, one end of the sleeve 1 far away from the quick-assembly opening 7 is hinged with a handle 2, a rubber sleeve 3 is connected to the joint of the handle 2 and the sleeve 1 in an adhering mode, and a deflectable mechanism 8 is arranged between the handle 2 and the sleeve 1 and inside the rubber sleeve 3. The inside of fast-assembling mouth 7 is used for pegging graft the bottle opener, when the position of screw was difficult to the installation, rotates handle 2 through deflectable mechanism 8 for handle 2 and sleeve 1 form certain angle, thereby be convenient for lock and dismantle the screw, and deflectable mechanism 8 and torsion limiting mechanism 4 do not conflict, and after handle 2 rotated certain angle, torsion limiting mechanism 4 still can play a role.

Referring to fig. 4, the deflectable mechanism 8 includes a locking wheel 81 and a locking lever 82, the locking wheel 81 is fixedly connected to one side of the end of the sleeve 1, a plurality of tapered grooves are formed in the locking wheel 81 along the circumferential direction of the locking wheel 81, the locking lever 82 is movably connected to one side of the end of the handle 2 close to the locking wheel 81, one end of the locking lever 82 close to the locking wheel 81 is tapered, and a shift lever 83 is fixedly connected to one side of the locking lever 82. When handle 2 need deflect certain angle, earlier through driving lever 83 pulling locking lever 82 for the tip of locking lever 82 is taken out from locking wheel 81, remove the locking between handle 2 and the sleeve 1, can rotate handle 2 to ideal angle this moment, and the one end that locking lever 82 kept away from locking wheel 81 is connected with the spring, after accomplishing the deflection loosen driving lever 83, locking lever 82 is automatic to be pegged graft on locking wheel 81, lock once more through the spring action of spring, and convenient for operation, the staff of being convenient for installs and dismantles the screw.

Referring to fig. 5, a limiting wheel 84 is fixedly connected to one side of the end portion of the handle 2, which is far away from the locking wheel 81, the limiting wheel 84 is located on a hinge central shaft of the handle 2, a plurality of trapezoidal grooves are formed in the limiting wheel 84 along the circumferential direction of the limiting wheel 84, a limiting rod 85 is movably connected to one side of the sleeve 1 at a position close to the limiting wheel 84, and one end of the limiting rod 85, which is close to the limiting wheel 84, is trapezoidal. When the handle 2 rotates, the limiting wheel 84 is driven to rotate, the end part of the limiting rod 85 moves towards the direction far away from the limiting wheel 84 when the limiting wheel 84 rotates, and one end, far away from the limiting wheel 84, of the limiting rod 85 is connected with a spring, when the limiting wheel 84 stops rotating (namely the handle stops rotating), the end part of the limiting rod 85 is inserted on the limiting wheel 84 again, the limiting wheel 84 is matched with the limiting rod 85, a certain limitation is carried out on the rotating angle of the handle 2, so that the locking rod 82 can be accurately inserted on the locking wheel 81 when the handle 2 stops rotating.

Referring to fig. 2, the outer wall of the handle 2 is made of silica gel, and a sealing cover 9 is connected to one end of the sleeve 1 close to the quick-mounting opening 7 in a threaded manner. The silica gel material is medical grade silica gel, increases the feel, and long-time, use vigorously also is difficult for making hand fatigue. The screw cap 45 is adjusted by opening the cover 9.

In summary, the following steps: when the screw is locked, the mandrel 41 is fixedly connected with the screw driver, if the maximum torque force value is not reached, the first helical teeth 421 and the second helical teeth 431 are meshed together, and after the maximum torque force value is reached, the first helical teeth 421 and the second helical teeth 431 are disengaged, and the second gear ring 43 is separated from the first gear ring 42. After the maximum torque force value is reached, the second ring gear 43 compresses the disc spring 44 through the retaining ring 441, and after the sleeve 1 drives the second ring gear 43 to rotate by one tooth position, the second ring gear 43 moves towards the first ring gear 42 through the elastic force of the disc spring 44, and the first helical teeth 421 are meshed with the second helical teeth 431 again. By screwing the screw cap 45, the positions of the first ring gear 42 and the spindle 41 can be adjusted, so that the pressure on the disc spring 44 is adjusted, and the aim of adjusting and presetting the torque force value is fulfilled.

When the disc spring 44 is compressed to reach the maximum torsion value, the disc spring 44 pulls the moving wheel 52 through the connecting plate 51, the moving wheel 52 pulls the rope 54, the moving wheel 52 is matched with the fixed wheel 53 due to the fact that the compressed stroke of the disc spring 44 is small, the moving stroke of the disc spring 44 can be expanded by multiple times when the moving wheel 52 is pulled, the expanded stroke is reflected on the connecting end of the rope 54 and the piston rod 57, finally, the rope 54 pulls the piston rod 57 to move for a distance, and the moving distance is far larger than the compression distance of the disc spring 44. When the piston rod 57 is pulled, the interior of the air cylinder 56 is inflated, and then the disc spring 44 is reset, the piston rod 57 is pushed towards the interior of the air cylinder 56 by the elastic force of the reset spring 55, so that the air in the interior of the air cylinder 56 enters the interior of the air storage bag 61, the purpose of inflating the interior of the air storage bag 61 is realized, and the operation is repeated, and the purpose of continuous energy inflation is achieved.

When the screw is locked, energy storage can be carried out once by the energy storage mechanism 5 every time a maximum torque force value is reached, the gas storage bag 61 is inflated once, namely, the gas storage bag 61 is inflated once after a screw is installed, a certain amount of gas can be contained in the space inside the gas storage bag 61, when the screw and the vicinity of the screw need to be disinfected, the valve 63 is opened, the gas inside the gas storage bag 61 enters the liquid storage bottle 64, the air pressure inside the liquid storage bottle 64 is increased, the one-way valve inside the spray head 67 is pushed open, disinfectant water inside the liquid storage bottle 64 is sprayed out from the spray head 67, disinfection is carried out, the metal pipe 66 can be wound to form a metal tubular product, the spray angle of the spray head 67 can be adjusted freely, and the spray effect of disinfectant is improved. The gas storage bag 61 can increase the spraying distance of the disinfectant, and can open and close the valve 63 according to the requirements to disinfect at any time, so that the operation is simple and convenient.

The inside of fast-assembling mouth 7 is used for pegging graft the bottle opener, when the position of screw was difficult to the installation, rotates handle 2 through deflectable mechanism 8 for handle 2 and sleeve 1 form certain angle, thereby be convenient for lock and dismantle the screw, and deflectable mechanism 8 and torsion limiting mechanism 4 do not conflict, and after handle 2 rotated certain angle, torsion limiting mechanism 4 still can play a role. When handle 2 need deflect certain angle, earlier through driving lever 83 pulling locking lever 82 for the tip of locking lever 82 is taken out from locking wheel 81, remove the locking between handle 2 and the sleeve 1, can rotate handle 2 to ideal angle this moment, and the one end that locking lever 82 kept away from locking wheel 81 is connected with the spring, after accomplishing the deflection loosen driving lever 83, locking lever 82 is automatic to be pegged graft on locking wheel 81, lock once more through the spring action of spring, and convenient for operation, the staff of being convenient for installs and dismantles the screw. When the handle 2 rotates, the limiting wheel 84 is driven to rotate, the end part of the limiting rod 85 moves towards the direction far away from the limiting wheel 84 when the limiting wheel 84 rotates, and one end, far away from the limiting wheel 84, of the limiting rod 85 is connected with a spring, when the limiting wheel 84 stops rotating (namely the handle stops rotating), the end part of the limiting rod 85 is inserted on the limiting wheel 84 again, the limiting wheel 84 is matched with the limiting rod 85, a certain limitation is carried out on the rotating angle of the handle 2, so that the locking rod 82 can be accurately inserted on the locking wheel 81 when the handle 2 stops rotating.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a preset torque force spanner of torsion value which characterized in that: the torsion limiting mechanism comprises a sleeve (1), a torsion limiting mechanism (4), an energy storage mechanism (5) and a liquid spraying mechanism (6), wherein the torsion limiting mechanism (4) is installed inside the sleeve (1), the liquid spraying mechanism (6) is installed at one end of the sleeve (1), and the energy storage mechanism (5) is installed between the torsion limiting mechanism (4) and the liquid spraying mechanism (6); the torsion limiting mechanism (4) comprises a mandrel (41) connected inside the sleeve (1) and a first gear ring (42) fixedly connected to the mandrel (41), and a second gear ring (43) is movably connected to the mandrel (41) at a position close to the first gear ring (42); liquid spraying mechanism (6) are including fixed connection in gas storage bag (61) of sleeve (1) tip and can dismantle liquid storage bottle (64) of connection in gas storage bag (61) one end, and the one end that gas storage bag (61) were kept away from in liquid storage bottle (64) is connected with shower nozzle (67).

2. The torque wrench with the preset torque value according to claim 1, wherein: first ring gear (42) are provided with annular first skewed tooth (421) for the one end of second ring gear (43), and second ring gear (43) are provided with annular second skewed tooth (431) for the one end of first ring gear (42), and spout (432) have all been seted up to the both sides that mandrel (41) were kept away from in second ring gear (43), have placed steel ball (433) between the inner wall of sleeve (1) and spout (432).

3. The torque wrench with the preset torque value as claimed in claim 2, wherein: the novel gear sleeve is characterized in that a disc spring (44) is arranged inside the sleeve (1), two end check rings (441) of the disc spring (44) are fixedly connected to the two ends of the sleeve, one end of the disc spring (44) is abutted to the second gear ring (43), the other end of the disc spring (44) is abutted to the inner wall of the sleeve (1), one end of the inner portion of the sleeve (1), which is close to the first gear ring (42), is connected with a thread sealing cap (45) in a threaded mode, and the thread sealing cap (45) is connected with the first gear ring (42) in a clamped mode.

4. A torque wrench of a preset torque value according to claim 3, wherein: one end, far away from the sleeve (1), of the gas storage bag (61) is fixedly connected with a gas outlet pipe (62), external threads are arranged at the end part of the gas outlet pipe (62), and a valve (63) is arranged on the gas outlet pipe (62).

5. The torque wrench of claim 4, wherein: the one end fixedly connected with interface (65) of stock solution bottle (64), the inside of interface (65) is provided with the internal thread, and the one end fixedly connected with that interface (65) were kept away from in stock solution bottle (64) can be around tubular metal resonator (66), can be around tubular metal resonator (66) keep away from one end fixedly connected with shower nozzle (67) of stock solution bottle (64), through hose through connection between shower nozzle (67) and stock solution bottle (64), and the inside of shower nozzle (67) is provided with the check valve.

6. The torque wrench of claim 5, wherein: one side of the retainer ring (441) far away from the mandrel (41) is fixedly connected with a connecting plate (51), one side of the connecting plate (51) is rotatably connected with two moving wheels (52), the inner wall of the sleeve (1) is rotatably connected with two fixed wheels (53) at the position close to the moving wheels (52), the inner part of the sleeve (1) is fixedly connected with an air cylinder (56) at the position close to the air storage bag (61), a guide pipe (58) is connected between the air cylinder (56) and the air storage bag (61) in a penetrating way, one end of the air cylinder (56) far away from the guide pipe (58) is provided with a piston rod (57), a rope (54) is arranged between the piston rod (57) and the moving wheels (52), one end of the rope (54) is fixedly connected with the inner wall of the sleeve (1), the other end of the rope (54) alternately bypasses the fixed wheels (53) and the moving wheels (52) and is fixedly connected with the end part of the piston rod (57), and a return spring (55) is connected between the end part of the piston rod (57) and the inner wall of the sleeve (1).

7. The torque wrench with the preset torque value according to claim 1, wherein: mandrel (41) are close to one end fixedly connected with fast-assembling mouth (7) of gas storage bag (61), and the one end that fast-assembling interface (65) was kept away from in sleeve (1) articulates there is handle (2), and the junction paste of handle (2) and sleeve (1) is connected with rubber sleeve (3), but the internally mounted of rubber sleeve (3) has deflection mechanism (8) between handle (2) and sleeve (1).

8. The torque wrench of claim 7, wherein: but deflection mechanism (8) are including locking wheel (81), locking lever (82), and tip one side fixedly connected with locking wheel (81) of sleeve (1), and a plurality of bell-shaped groove has been seted up along the circumferencial direction of locking wheel (81) on locking wheel (81), and one side swing joint that the tip of handle (2) is close to locking wheel (81) has locking lever (82), and the one end that locking lever (82) are close to locking wheel (81) is the toper, one side fixedly connected with driving lever (83) of locking lever (82).

9. The torque wrench of claim 8, wherein: spacing round (84) of one side fixedly connected with of locking wheel (81) is kept away from to the tip of handle (2), and spacing round (84) are located the articulated center pin of handle (2), and spacing round (84) are gone up and have been seted up a plurality of dovetail groove along the circumferencial direction of spacing round (84), and one side of sleeve (1) is in the position department swing joint who is close to spacing round (84) gag lever post (85), and the one end that gag lever post (85) are close to spacing round (84) is trapezoidal.

10. A torque wrench of a preset torque value according to claim 9, wherein: the outer wall of handle (2) is the silica gel material, and sleeve (1) is close to one end threaded connection of fast-assembling mouth (7) has closing cap (9).