TW201819121A - Positioning device for torque wrenches relieving the displacement and the rotation of an adjusting pipe relative to a rotary controlling pipe - Google Patents

Abstract

Disclosed is a positioning device for torque wrenches, wherein a receiving hole is arranged inside a main pipe; one end of a ratchet pipe is inserted in and assembled with the main pipe, a plurality of long positioning grooves are concavely arranged in the periphery of the ratchet pipe, and the plurality of long positioning grooves are communicated with the receiving holes by penetrating through through holes; a rotary controlling pipe is sleevedly arranged on the outer periphery of the ratchet pipe and comprises a locking section, a holding section, and a combining hole, wherein one end of the locking section connected to the holding section is circularly concaved with an abutting step, provided with an embedded hole which is embedded with a positioning bead, torsion elastic control components are arranged in the receiving hole, the through holes, and the combining hole, and the rotary controlling pipe rotatably sets the torque value of a driving wrench; an adjusting pipe sleevedly fixes the locking section and an inner ring convex pushing block, and the top surface of the adjusting pipe is an inclined abutting surface; a spring piece is sleevedly arranged on the locking section and two ends of the spring piece elastically prop against the push block and the abutting step, respectively; a L-shaped hole is arranged in the outer peripheral of the adjusting pipe, one end of a bolt penetrates through the L-shaped hole and is connected to the locking section in a locking manner, the bolt displaces align the L-shaped hole to limit, relieve the displacement and the rotation of the adjusting pipe relative to the rotary controlling pipe.

Description

   Positioning device of torque wrench   

The positioning device of a torque wrench according to the present invention refers to a device used in the field of hand tools. Its main purpose is to be able to tighten screws and nuts without destroying threads. An important technical feature is that it provides a torque setting during operation. It is an invention with excellent practicability when it is fixed to achieve precise and accurate force action.

The most indispensable parts for the assembly of machinery are screws and nuts. If the smallest parts are missing, it may cause defects and damage to the operation of the machine. Therefore, the integrity of the machine depends on the cooperation between various parts. It can be fully operated, but the screws and nuts on the assembly of the machine will gradually loosen due to the vibration generated by the operation of the machine. Therefore, more attention must be paid to the assembly of the machine and the maintenance of the daily maintenance. Screws and nuts are tightened tightly, and the tools for locking screws and nuts on the market today are nothing more than common wrenches. They have different wrenches according to different screw and nut sizes and different working places. Use, but most of the commonly used wrenches are locked by manpower. The use of manpower has a certain force. When the load is exceeded, the screws and nuts cannot be locked. However, through scientific judgment , It should be found that the degree of locking of the screws and nuts is not optimal, so when the machinery is constantly vibrating, it may cause Unloading, leading to the disintegration of machinery, collapse, and even affect the mechanical operation, the operation of the entire production line of major issues such as occur.

According to the above problems, there is also a wrench in the wrench category that can improve many problems, that is, a torque wrench. Torque wrenches are also called torque wrenches or torque wrenches. Torque is the product of force and distance. When tightening screws, bolts, nuts, nuts, and other threaded fasteners, you need to control the amount of applied torque to ensure that the threads are tightened and that the threads are not damaged due to excessive torque. Therefore, when operating with a torque wrench, you must first set a required The upper limit of the torque value. When the applied torque reaches the set value, the torque wrench will make a "Kata" sound or the angle at which the torque wrench is connected is bent at an angle, which means it is already tightened and no more force is required. Through the setting of the torque wrench, screws, nuts and other related threaded parts can be locked tightly without exceeding the maximum load of the thread. Please refer to the Republic of China Patent Bulletin No. I318917 "Torque wrench structure". A handle portion and a grip portion, wherein the handle portion includes an inner handle and an outer tube, the inner handle is assembled with the outer tube, one end of the inner handle is provided with a head, and one end of the outer tube is combined with the grip portion ; The outer pipe system includes an accommodating space in which an elastic body, a supporting post, a set of parts, and a kit are placed, and the set of parts is assembled with the kit and is elastically resilient. The kit is in contact with one end of the inner handle; the radial surface of the kit is smooth, and it can be worn on the inner surface when it is placed in the kit, and the kit is made of a softer material than the kit. Outside the kit, and when it slides in the outer tube, it can be slightly deformed by the characteristics of the soft material to more correspond to the shape of the inner section of the outer tube, and reduce the wear and sliding stability of the inner tube and increase stability Degree, which increases the life of the body.

The above list is a common torque wrench on the market today. Although it can provide users to lock the screwed parts such as screws, nuts, etc., without damaging the threads, the torque wrench must be set in use. It can be used, and when the user is in the process of operation, it is easy to accidentally turn to the adjusted part due to the influence of various factors or external factors, so that the torque value that has been set is run away, so it is possible Parts that originally meant screws, nuts, etc. that are suitable for a specific torque value will cause thread deformation or even damage to the screws and nuts when the torque value is gone. In serious cases, problems such as affecting the operation of the entire machine will occur. Therefore, the relevant industry must make further efforts to think about how to improve so as to eliminate the above-mentioned shortcomings and meet the needs of users.

In view of the above circumstances, the inventor has invested a lot of time in researching related knowledge, comparing various advantages and disadvantages, conducting research and development of related products, and undergoing many experiments and tests, and finally launched a "torque wrench positioning device" Improve the above-mentioned defects to meet the needs of the public.

The most important technical feature of the present invention is to provide users with the ability to reliably fix the setting of the torque value during operation, to avoid inadvertent fine adjustment during the holding operation, which will affect the degree of locking of screwed parts such as screws, nuts, etc. It improves the deficiencies and problems arising from the listed technologies. Therefore, in order to achieve the above-mentioned object and effect, a positioning device of a torque wrench according to the present invention includes: a main pipe, one end of which is provided with a driving wrench, and an accommodation hole is provided in the main pipe; a ratchet tube One end is inserted into the other end of the main pipe, and the outer periphery of the ratchet tube is axially provided with a plurality of positioning long grooves. In addition, a perforation receiving hole is formed in the ratchet tube to communicate with the main pipe; The tube is sleeved on the outer periphery of the ratchet tube. The rotary control tube further includes a detent section, a grip section, and a combination hole penetrating the detent section and the grip section, and the detent section is connected to the grip section. One end is recessed to form an anti-step. In addition, the actuating section is provided with at least one embedded hole communicating with the combining hole, and a positioning bead is embedded in the opened at least one embedded hole. A torsion spring control component is installed on the main pipe. A receiving hole, a perforation of a ratchet tube, and a combination hole of a rotary control tube; the rotation of the rotary control tube controls the compression displacement of the torque elastic control component to set the torque value of the driving wrench; and a control tube which is sleeved on the rotary control In the actuating section of the tube, a ring is raised in the ring of the regulating tube. And the push block has an inclined abutment surface, and another spring member is sleeved on the actuating section, and both ends of the spring member respectively spring against the bottom surface of the push block and the abutment of the rotary control tube, and the control tube is relatively The axial displacement of the rotary control tube pushes the positioning beads into the recessed holes by the inclined abutment surface of the push block and snaps into any of the positioning long grooves; in addition, an L hole is opened on the outer side of the control tube. A bolt is further provided at one end thereof through the L hole and locked to the actuating section. The bolt restricts and releases the displacement and rotation of the control tube relative to the rotary control tube along the hole shape of the L hole. The cooperation of the L hole and the bolt allows the user to control the positioning of the tube during the operation after setting and adjusting the torque value, without changing the already set torque value by accident, thereby achieving accuracy. The efficacy and purpose of setting and operation.

According to the above description of the main technical features of the present invention, its further technical feature is that the L hole of the control pipe further includes a straight hole section and a horizontal hole section, and the straight hole section and the horizontal hole section are connected to each other, The bolt is in a released state when it is located in a straight hole section, and the regulating pipe system can be actuated with respect to the axial displacement of the spiral control tube, while the bolt is in a restricted state when it is located in a transverse hole section, the regulating tube cannot be actuated with respect to the axial displacement of the spiral control tube.

According to the above description of the main technical features of the present invention, its further technical feature is that the bolt further includes a screw head section and a screw joint section, and the screw head section is located in the L hole and a screw control groove is recessed, The outer periphery of the screw connection section is provided with an external thread screwed to the detent section of the rotary control tube, and the lock section corresponding to the bolt is provided with a lock hole, and an inner thread is provided on the wall ring of the key hole hole. Interlocking with external threads

According to the above description of the main technical features of the present invention, a further technical feature is that the opposite end of the main pipe provided with a driving wrench is further provided with a pin hole communicating with the receiving hole, and the ratchet tube is inserted into the receiving hole. One hole corresponding to the pin hole at one end is provided with a corresponding one of the jacks, and two pin posts are respectively inserted into the jacks of the ratchet tube through the two holes of the pin hole.

According to the above description of the main technical features of the present invention, its further technical feature is that the torsion spring control assembly further includes a spring, a screw and a control, the spring is arranged in the main pipe and one end of the spring springs against the driving wrench. The screw is penetrated in the accommodation hole of the main pipe, the perforation of the ratchet tube, the combination hole of the rotary control tube, and penetrates the control. The other end of the spring is springed against the other abutment plate, and one end of the screw is locked. At the abutment, in addition, the adjusting control is fixedly connected to the rotary control tube, and a nut lock is arranged on the screw between the adjusting control and the ratchet tube, and the side of the adjusting control corresponding to the nut is concave. A steering groove is provided, and the axial displacement of the solenoid causes the nut to sink into the steering groove for positioning, and the rotation of the solenoid fixes the nut and displaces the screw relative to the bite, and the screw is displaced toward the spring Then push against the plate compression spring to accumulate force.

According to the above description of the main technical features of the present invention, a further technical feature is that a shallow groove is further recessed in the inner wall surface of the control tube and is located below the push block, and an auxiliary ring is recessed in the corresponding shallow groove of the rotary control tube. The groove is provided with a rubber ring embedded in the shallow groove and the auxiliary ring groove. The rubber ring restricts and prevents the control tube from being displaced away from the rotary control tube.

According to the description of the main technical features of the present invention, a further technical feature is that the end of the rotary control tube is further provided with a cover at the opening of the coupling hole, and the screw is penetrated through the cover.

To sum up the technical features described above for the present invention, the advantage is that after the user has set the torque value, in order to avoid the already set torque value from being artificially or otherwise caused by the user to run away Therefore, the rotation of the rotary control tube relative to the main tube drives the screw to displace and compress the spring. At the moment, the rotary control tube can rotate relative to the main tube. The control tube is in a state of sinking and compressing the spring. The elastic accumulating force resets the control tube, and the reset of the control tube uses the oblique surface of the push block to push the positioning beads to sink into the recessed holes and engage the positioning long grooves, thereby restricting the rotation of the control tube. Then the user rotates the control tube to allow the bolt to move in the L hole to limit the vertical displacement of the control tube. In this way, the user will not allow the control tube to move up and down again and the rotary control tube to rotate again during the operation. Users can rest assured that they can be gripped and pulled to ensure that the tightness of the screws and nuts reaches the most appropriate tightness. Therefore, the present invention can be said to be a very practical and progressive invention, which is worthy of being promoted by the industry and being made public.

(1) ‧‧‧Supervisor

(11) ‧‧‧Receiving hole

(12) ‧‧‧pin hole

(2) ‧‧‧Driver

(3) ‧ ‧ ‧ ratchet tube

(31) ‧‧‧Positioning long groove

(32) ‧‧‧Perforation

(33) ‧‧‧Continuation section

(331) ‧‧‧jack

(34) ‧‧‧ Socket

(35) ‧‧‧pin

(4) ‧‧‧Spiral tube

(41) ‧‧‧ Trigger section

(411) ‧‧‧Embedded

(412) ‧‧‧Keyhole

(413) ‧‧‧Internal thread

(42) ‧‧‧holding section

(43) ‧‧‧Combination hole

(44) ‧‧‧arrival

(45) ‧‧‧Auxiliary ring groove

(46) ‧‧‧Rubber ring

(47) ‧‧‧Cap

(5) ‧‧‧Positioning beads

(6) ‧‧‧Torque Spring Control Kit

(61) ‧‧‧Spring

(62) ‧‧‧Screw

(64) ‧‧‧Tune control

(641) ‧‧‧Direction slot

(65) ‧‧‧ Arrive

(66) ‧‧‧Nut

(7) ‧‧‧Regulatory tube

(71) ‧‧‧Push block

(711) ‧‧‧Obliquely

(72) ‧‧‧L hole

(721) ‧‧‧Straight hole section

(722) ‧‧‧Horizontal hole section

(73) ‧‧‧Shallow groove

(8) ‧‧‧Spring

(9) ‧‧‧Bolt

(91) ‧‧‧Screw Section

(911) ‧‧‧Screw Control Slot

(92) ‧‧‧Screw Joint

(921) ‧‧‧External thread

The first figure is a schematic perspective view of the present invention.

The second figure is a partially exploded perspective view of the present invention.

The third figure is a schematic partial sectional view of the present invention.

The fourth diagram is a schematic diagram of the action of the control pipe of the present invention in a downward pressure state with the bolts located in the straight hole section.

The fifth diagram is a schematic cross-sectional motion diagram of the control tube of the present invention in a depressed state, and the spring member is compressed by the pushing block.

FIG. 6 is a schematic cross-sectional view of the operation of the spiral control screw of the present invention, which causes the screw to move and push the compression spring against the plate.

The seventh diagram is a schematic diagram of the operation of turning the control tube to make the bolt located in the horizontal hole section after the screw adjustment of the present invention is completed.

The eighth diagram is a schematic diagram of the operation of the cross section of the control tube reset after the adjustment of the present invention, the oblique abutment surface of the pushing block pushes the positioning beads to sink into the recessed holes, and engages the positioning long grooves.

In order to clearly illustrate the above-mentioned objects and effects that the present invention can achieve, the features and effects of the embodiments of the present invention will be described in detail with reference to the drawings. Referring to the first to eighth figures, a positioning device of a torque wrench according to the present invention includes: a main pipe (1) having a circular tube shape, and one end of which is provided with a driving wrench (2) for assembling a sleeve And other related parts, and used to drive the locking of screws and nuts, and an accommodation hole (11) is provided in the main pipe (1) and has openings at both ends; a ratchet tube (3), one end of which Inserted at the other end of the main pipe (1), and the ratchet tube (3) is provided with a plurality of positioning long grooves (31) axially recessed on the outer periphery, and each positioning long groove (31) is arranged at a distance, and A perforated (32) receiving hole (11) communicating with the main pipe (1) is penetrated in the ratchet tube (3); a cylindrical spiral control tube (4) is sleeved on the outer periphery of the ratchet tube (3); The rotary control tube (4) further includes a detent section (41), a grip section (42) for user gripping, and a coupling hole penetrating the detent section (41) and the grip section (42). (43), and the outer ring end of the holding section (42) connected to the holding section (42) is recessed to form a step (44), and the maximum circle diameter of the holding section (41) is smaller than the holding section ( 42), and the detent section (41) is provided with at least one insert The hole (411) communicates with the coupling hole (43), and a positioning bead (5) is embedded in at least one embedded hole (411); a torsion spring control component (6) is installed in the receiving hole of the main pipe (1) (11) The perforation (32) of the ratchet tube (3) and the combined hole (43) of the rotary control tube (4). The rotation of the rotary control tube (4) controls the compression displacement of the torsion spring control assembly (6). The torque value of the driving wrench (2) is set; and a control tube (7) is sleeved on the detent section (41) of the rotary control tube (4), and a push block is protruded in the ring of the control tube (7). (71), and the pushing block (71) has an inclined abutment surface (711), and another spring member (8) is sleeved on the detent section (41), and the two ends of the spring member (8) are respectively The thrusting block (71) and the step (44) of the rotary control tube (4) spring, and the axial displacement of the control tube (7) relative to the rotary control tube (4) is based on the inclined abutment surface of the push block (71) ( 711) pushed against the positioning beads (5) and sunk into the recessed holes (411) and snapped into any of the positioning long grooves (31); in addition, an L-hole (72 ), And a bolt (9) is further provided with one end passing through the L hole (72) and locked to the detent section (41). The bolt (9) is restricted and released along the hole shape of the L hole (72). Position of control tube (7) relative to control tube (4) And rotation; among them, through the cooperation of the L hole (72) and the bolt (9) on the control tube (7), the user can control the tube (7) during the operation after setting and adjusting the torque value It can be positioned without being accidentally touched to change the torque value that has been set, thereby achieving the effect and purpose of accurate setting and exact operation (the main technical features of the main embodiment of the present invention correspond to the first scope of the patent application in this case The content of the item can be used to know the purpose and implementation mode of the present invention in detail, and the technical features described in the patent scope of the remaining subsidiary applications are for the purpose of detailed description or additional technical features of the first content of the scope of patent application, but not for limiting. For the definition of the first scope of the patent application scope, it should be known that the first scope of the patent application scope of this case does not necessarily include the technical features described in the remaining subsidiary application patent scopes).

According to the above description, when the user wants to use a torque wrench to tighten the screws and nuts, first understand the maximum torque to be tightened by the screws and nuts, and then set the torque value. The control tube (7) is rotated relative to the rotary control tube (4), thereby releasing the fixed state of the control tube (7), so that the control tube (7) can be moved up and down. After the release, the control tube (7) is pressed down by one hand So that the positioning bead (5) located in the insertion hole (411) is not engaged in the positioning long groove (31) and the spring member (8) is in a compressed state, so that the spinner can be held by the other hand The tube (4) performs screw rotation, and the screw rotation of the tube (4) drives and controls the operation and compression of the torque spring control assembly (6); the spring member (8) can be released after determining the set torque value The compression of the spring adjusts the control tube (7) through the elastic storage force of the spring (8), and the reset of the control tube (7) moves the positioning bead (5) by the inclined abutment surface (711) of the push block (71). ) Sink into the recessed hole (411) and engage with the positioning long groove (31). The positioning bead (5) engages with the positioning long groove (31) mainly to prevent the rotary control tube (4) from rotating again. Changed settings The torque value of the control tube (7) is then rotated relative to the control tube (4) and the bolt (9) is displaced along the L hole (72) to the other end, which further restricts the control tube (7). The upper and lower displacements act to restrict the rotation of the rotary control tube (4) through the cooperation of the positioning bead (5) and the positioning long groove (31), and the cooperation of the bolt (9) and the L hole (72) restricts the control tube (7). The up and down displacement of the relative control tube (4) allows users to reliably hold and apply force during operation and construction, without having to worry about changing the already set torque value, so that the construction operation can be smooth and fast.

Please carefully look at the fourth and seventh figures, and take the second figure as a reference. The design of the L hole (72) of the control tube (7) further includes a straight hole section (721) and a horizontal hole. Segment (722), the straight hole segment (721) and the transverse hole segment (722) are connected to each other in an L shape, and the hole pattern in the figure is based on the mirror of L as the main hole type, but it is not limited to positive L or mirror The rear L-shape, however, when the control tube (7) is released and fixed, when the bolt (9) is located in the straight hole section (721), the control tube (7) presents an upward and downward displacement adjustment state, so that the user can Move the control tube (7) down and adjust the rotary control tube (4) to set the required torque value to facilitate the tight locking of the screws and nuts; otherwise, when the bolt (9) is located in the transverse hole section (722 ), The control tube (7) rotates after resetting due to the spring force of the spring member (8). This restricts the control tube (7) from being able to move up and down again, thereby allowing the user to hold the control tube. Force swing, and then tighten the screws and nuts to a certain degree of tightness, to prevent the vibration of the machine during operation from affecting the loosening of the screws and nuts. Referring again to the second figure, the present invention adopts an adjustable countersunk head screw in the design of the bolt (9), which has a screw head section (91), that is, a screw joint section (92). The head section (91) is located in the L hole and a screw control groove (911) is recessed at the top, and the screw section (92) is provided with an external thread (921) on the outer ring, and the detent section (41) A lock hole (412) is provided for the lock corresponding to the screw connection section (92), and an internal thread (413) is provided on the inner wall wall ring of the lock hole (412), and the external thread of the screw connection section (92) is provided. (921) is screwed with the internal thread (413) of the lock hole (412), and the user can use a common hexagonal L wrench to insert the screw control slot (911) to perform the adjustment of the screw (9). The tightness of the screwing between the bolt (9) and the lock hole (412).

In addition, in the combined form between the main pipe (1) and the ratchet tube (3), the present invention is further provided with a pin hole (12) connected to the opposite end of the main pipe (1) with a driving wrench (2). The hole (11) is accommodated, and the ratchet tube (3) is further divided into an engaging section (33) inserted into the main pipe (1), and a socket section (34) having the same diameter as the main pipe (1). The joint section (33) of the ratchet tube (3) is inserted into the main pipe (1), so that the socket section (34) can abut against the end of the main pipe (1), and the joint section (33) is inserted into the accommodation hole (11) The two holes corresponding to the pin hole (12) are respectively provided with a corresponding one of the jacks (331), and two pin pins (35) are respectively inserted into the two ends of the pin hole (12) through The corresponding socket (331), so that the ratchet tube (3) can be stably installed on the main pipe (1), and the positioning beads (5) can be correctly engaged with the positioning long grooves (31). And the operation of the fixed control tube (4). Similarly, between the control tube (7) and the rotary control tube (4), in order to prevent the control tube (7) from detaching, it is further recessed on the inner wall surface of the control tube (7) and below the push block (71). There is a shallow groove (73), and the rotary control tube (4) corresponding to the shallow groove (73) is recessed with an auxiliary ring groove (45), and an rubber ring (46) is buried in the shallow groove (73) and the auxiliary ring. In the groove (45), friction between the control tube (7) and the rotary control tube (4) is caused by the setting of the rubber ring (46), so as to prevent the elastic storage force of the spring member (8) from driving the control tube (7). ) The control tube (4) was released during resetting. Please refer to the fifth, sixth and eighth figures, and use the second figure as an auxiliary explanation. Please refer to the second figure again, in order to prevent foreign matter from entering the rotary control tube (4) and affecting the operation of the torque spring control assembly (6), the end of the rotary control tube (4) is further installed at the opening of the coupling hole (43). A cover (47) is provided, so that foreign matter can be prevented from entering through the setting of the cover (47), and the present invention is described with the cover (47) as the main embodiment, which is not a limitation on the type of the cover (47) In the state, the coupling hole (43) of the rotary control tube (4) can be mainly closed.

Finally, the torsion spring control assembly (6) further includes a spring (61), a screw (62) and a control (64). The spring (61) is arranged in the main pipe (1) and one end of the spring springs against the driving trigger. It is a known technology that the head (2) (spring (61) springs against the driving wrench (2), and other related components can also be used between the driving wrench (2) and the spring (61), which is not used here. To limit its technical characteristics), and the screw (62) is a receiving hole (11) provided in the main pipe (1), a perforation (32) of a ratchet tube (3), and a combination hole of a rotary control tube (4) (43) runs through the adjustment control (64) and the cover (47), and one end of the screw (62) located in the accommodation hole (11) is further provided with an abutment plate (65), and the other end of the spring (61) will It springs against the abutting plate (65), and the screw (62) is penetrated and locked on the abutting plate (65). In addition, the adjusting control (64) is fixed in the rotary control tube (4) and interposed between the cover (47) and the ratchet. Between the moving tube (3), a side of the adjusting control (64) corresponding to the ratcheting tube (3) is recessed with a control groove (641), and a nut (66) is sleeved on the screw (62) ) And located between the ratchet tube (3) and the control (64). When the user controls the rotation of the rotary control tube (4), the nut (66) will be embedded in the control slot (64). 1), so that the screw (62) will be displaced relative to the screwing and then push against the plate (65) to compress the spring (61) and release the compression state of the spring (61), please refer to the second, fourth to eighth figures.

In summary, the present invention can control the rotary motion of the rotary control tube (4) first through the cooperation between the rotary control tube (4) and the ratchet tube (3) and the setting of the torque spring control component (6). With the setting of the L hole (72) of the control tube (7) and the bolt (9), the up and down displacement of the control tube (7) relative to the rotary control tube (4) is further restricted, so that the user can use it in operation, Under the rotation control of the rotary control tube (4) and the up-down displacement of the control tube (7), the rotary control tube (4) can be reliably held and the swing of the entire torque wrench can be controlled without exerting force. Due to external factors, the torque value that has been set is run away, so as to achieve accurate and reliable operation; In addition, the combination between the main pipe (1) and the ratchet tube (3) allows users to replace the components. The replacement of the damaged part does not need to be eliminated in its entirety as is conventional, which greatly reduces the cost of expenses. Therefore, the present invention is more practical and progressive than the conventional technology, and is more suitable for the general public. The above are only used to explain the preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Therefore, any modification of the present invention made in the same spirit of the invention Or the changes, which are other forms that can be implemented and have the same effect, should still be included in the scope of the present invention.

To sum up, the "positioning device of the torque wrench" of the present invention is indeed practically and cost-effectively in line with the needs of industrial development, and the disclosed structural invention also has an unprecedented innovative structure, so it has "Novelty" should undoubtedly be considered, and the present invention can be more effective than the conventional structure. Therefore, it is also "progressive". It fully complies with the requirements of the patent law on application requirements for invention patents in China. , And kindly ask the Bureau to review and affirmatively.

Claims (7)

    A positioning device for a torque wrench includes a main pipe having a driving wrench set at one end thereof and an accommodation hole in the main pipe; a ratchet tube having one end inserted into the other end of the main pipe, and The outer periphery of the ratchet tube is axially provided with a plurality of positioning long grooves. In addition, a perforation receiving hole is formed in the ratchet tube, and a rotary control tube is sleeved on the outer periphery of the ratchet tube. The control tube further includes a locking section, a holding section, and a combination hole penetrating through the holding section and the holding section, and one end of the connecting section connected to the holding section is ring-shaped to form a step, and the holding section The section is provided with at least one embedded hole communicating with the combined hole, and a positioning bead is embedded in the at least one embedded hole; a torsion spring control component is installed in the accommodation hole of the main pipe, the perforation of the ratchet tube, and the rotary control tube. A combination hole, the rotation of the rotary control tube controls the compression displacement of the torsion spring control component to set the torque value of the driving wrench; and a control tube, which is sleeved on the control section of the rotary control tube, and the control tube is annularly convex There is a push block, and the push block has an oblique abutment surface, and another spring element is provided. It is located in the detent section, and the two ends of the spring member respectively spring against the bottom surface of the push block and the step of the rotary control tube. The axial displacement of the control tube relative to the rotary control tube is pushed and positioned by the oblique abutment surface of the push block. The beads sink into the recessed holes and are snapped into any of the positioning long grooves; in addition, an L hole is set on the outer peripheral side of the control tube, and one end of a bolt is further provided through the L hole and locked to the latch. Segment, the bolt along the hole shape of the L-shaped hole restricts and cancels the displacement and rotation of the control tube relative to the rotary control tube; among them, through the cooperation of the L hole on the control tube and the bolt, the user allows the user to set and adjust the torque value. After the setting, the control tube can be positioned during the operation without being accidentally touched to change the set torque value.         According to the positioning device of the torque wrench according to item 1 of the scope of the patent application, wherein the L hole of the control pipe further includes a straight hole section and a horizontal hole section, and the straight hole section and the horizontal hole section are connected to each other, The bolt is in a released state when it is located in a straight hole section, and the regulating pipe system can be actuated with respect to the axial displacement of the spiral control tube, while the bolt is in a restricted state when it is located in a transverse hole section, the regulating tube cannot be actuated with respect to the axial displacement of the spiral control tube.         According to the positioning device of the torque wrench according to item 2 of the scope of the patent application, wherein the bolt further includes a screw head section and a screw joint section, and the screw head section is located in the L hole and a screw control groove is recessed, The outer periphery of the screw connection section is provided with an external thread screwed to the detent section of the rotary control tube, and the lock section corresponding to the bolt is provided with a lock hole, and an inner thread is provided on the wall ring of the key hole hole. Interlock with external threads.         According to the positioning device of the torque wrench according to any one of claims 1 to 3, wherein the opposite end of the main pipe provided with a driving wrench is further provided with a pin hole communicating with the receiving hole, and the ratchet The moving tube is inserted into one end of the accommodation hole and the two openings corresponding to the pin holes are provided with corresponding one of the jacks, and the other two pin posts are respectively inserted into the jacks of the ratchet tube through the two ends of the pin holes. .         According to the positioning device of the torque wrench according to item 4 of the scope of the patent application, wherein the torque spring control assembly further includes a spring, a screw and an adjusting control, the spring is disposed in the main pipe and one end of the spring springs against the driving wrench. The screw is penetrated in the accommodation hole of the main pipe, the perforation of the ratchet tube, the combination hole of the rotary control tube, and penetrates the control. The other end of the spring is springed against the other abutment plate, and one end of the screw is locked. At the abutment, in addition, the adjusting control is fixedly connected to the rotary control tube, and a nut lock is arranged on the screw between the adjusting control and the ratchet tube, and the side of the adjusting control corresponding to the nut is concave. A steering groove is provided, and the axial displacement of the solenoid causes the nut to sink into the steering groove for positioning, and the rotation of the solenoid fixes the nut and displaces the screw relative to the bite, and the screw is displaced toward the spring Then push against the plate compression spring to accumulate force.         According to the positioning device of the torque wrench according to item 1 of the scope of the patent application, a shallow groove is further recessed on the inner wall surface of the control tube and is located below the push block, and an auxiliary ring is recessed corresponding to the shallow groove of the control tube The groove is provided with a rubber ring embedded in the shallow groove and the auxiliary ring groove. The rubber ring restricts and prevents the control tube from being displaced away from the rotary control tube.         According to the positioning device of the torque wrench according to item 5 of the scope of the patent application, a cap is further installed at the end of the screw control tube, and the screw is penetrated through the cap.