Torque wrench

Abstract

The utility model discloses a torque wrench, and belongs to the technical field of wrenches, the key points of the technical scheme are that the torque wrench comprises a wrench body, and the torque wrench is characterized in that the wrench body comprises a clamping device comprising a round clamp; a rod mechanism; the reversing device is connected with the rod mechanism and connected with the clamping device; wherein the round clamp is connected with the clamping device. The utility model provides a torque wrench. The torque wrench can be matched with bolts of various models without replacing a sleeve.

Description

Technical Field

[0001] The present application belongs to the technical field of wrenches, and in particular, relates to a torque wrench. Background Art

[0002] A torque wrench is a type of wrench. The operator can apply a specific torque value to the torque wrench to tighten screws and bolts with the force of the set torque value.

[0003] The existing Chinese patent with publication number CN116252264A discloses a torque wrench, including a torque wrench body, multiple sleeves, an extension rod, a grip sleeve, a limiting mechanism and a placement mechanism. An extension groove is provided at the bottom end of the torque wrench body; the multiple sleeves are of different specifications and are used in conjunction with the torque wrench body; the extension rod is slidably installed in the extension groove, the extension rod is adapted to the extension groove, and the bottom end of the extension rod extends outside the extension groove, and the length of the extension rod is greater than the length of the extension groove; the grip sleeve is fixedly sleeved on the extension rod; the limiting mechanism is provided between the extension rod and the torque wrench body for limiting; the placement mechanism is provided at the bottom end of the extension rod for placing multiple sleeves.

[0004] Although the torque wrench can save effort by increasing the lever arm and can carry multiple sleeves of different specifications at the same time, it is convenient to use. However, in actual use, the sleeves are small and easy to lose, and it is very inconvenient to frequently replace the sleeves during assembly. Utility Model Content

[0005] The purpose of this application is to provide a torque wrench that can adapt to various types of bolts without replacing the socket in order to solve the above-mentioned technical problems.

[0006] The present application provides a torque wrench, including a wrench body, wherein the wrench body includes:

[0007] A gripping device, including a round clamp;

[0008] Rod mechanism;

[0009] A reversing device, which is connected to the rod mechanism and connected to the clamping device;

[0010] Wherein, the round clamp is connected to the clamping device.

[0011] In this technical solution, a clamping device with a round clamp is provided on the wrench body. The round clamp can clamp most of the bolts and nuts through the control of the clamping device. During actual assembly, the models of bolts and nuts are generally different. During actual assembly, the user does not need to replace the sleeve, but only needs to adjust the round clamp, thereby shortening the processing time and improving assembly efficiency.

[0012] Furthermore, the clamping device comprises:

[0013] Fixed base;

[0014] A movable frame connected to a fixed base;

[0015] Wherein, the round clamp is placed on a fixed base and a movable frame.

[0016] In this technical solution, the clamping device is divided into a fixed base and a movable frame, and the round clamp is placed on the movable frame and the fixed base. The movable frame can move on the fixed base. The round clamp tightens and loosens the bolts and nuts through the positional relationship between the movable frame and the fixed base, so that the torque wrench can tighten and loosen the bolts and nuts.

[0017] Furthermore, the round clamp comprises:

[0018] A first clamp, which is connected to the fixed base and connected to the movable frame;

[0019] A second clamping member connected to the first clamping member;

[0020] The third clamp is connected to the second clamp.

[0021] In the present technical solution, by dividing the circular clamp into a first clamp, a second clamp and a third clamp, the first clamp can be rotated at a certain angle on a fixed base or a movable frame, the second clamp can be rotated at a certain angle on the first clamp, and the third clamp can be rotated on the second clamp, so that the circular clamp can be matched with bolts and nuts of various specifications. The third clamp is made of a softer material and will not scratch or damage the contact surface with the bolts and nuts, and can protect the outer surface of the bolts and nuts. It can also clamp bolts and nuts whose contact surfaces have been damaged, thereby expanding the scope of application.

[0022] Furthermore, the fixed base includes:

[0023] First gear;

[0024] Screw;

[0025] Wherein, the movable frame is provided with a second gear, the first gear is placed on the fixed base, and the first gear and the second gear can transmit to each other.

[0026] In the present technical solution, a first gear and a screw are arranged on a fixed base, and a second gear is arranged on a movable frame. The screw rotates to drive the first gear to rotate and move, and the first gear then drives the second gear to rotate and move, so that the movable frame can move on the fixed base through the rotation of the screw, thereby facilitating the tightening and loosening of the bolts and nuts by the clamping device.

[0027] Furthermore, the fixed base also includes:

[0028] Motor;

[0029] A power source connected to the motor;

[0030] switch;

[0031] Wherein, the motor is placed on the screw rod, and the switch is placed on the power supply.

[0032] In the present technical solution, a motor, a power supply and a switch that can control the forward and reverse rotation of the motor are added to the fixed base. When it is necessary to tighten the bolts and nuts, the forward switch is turned down, the power supply starts the motor, the motor drives the screw to rotate forward, so that the movable frame is close to the fixed base, and the round clamp can tighten the bolts and nuts. When it is necessary to loosen the bolts and nuts, the reverse switch is turned down, the power supply starts the motor, the motor drives the screw to rotate reversely, so that the movable frame is away from the fixed base, and the round clamp can loosen the bolts and nuts.

[0033] Furthermore, the rod mechanism comprises:

[0034] Rod handle;

[0035] A rod body connected to the rod handle;

[0036] First spring;

[0037] Active parts;

[0038] A trigger, comprising a first connecting member;

[0039] Auxiliary blocks;

[0040] The auxiliary block is connected to the rod handle via a first spring, the movable member is placed between the trigger and the auxiliary block, and the first connecting member is connected to the reversing device.

[0041] In the present technical solution, by adding a first spring to the rod mechanism, adjusting the position between the rod handle and the rod body by comparing with the scales on the rod handle and the rod body, and adjusting the length of the first spring at the same time, a suitable torque value can be set for operation, a trigger and a first connecting member are added to connect the rod mechanism and the reversing device, and at the same time, a movable part and an auxiliary block are added, the movable part supports the auxiliary block and the trigger, and when the torque applied to the rod handle reaches a specified value, the trigger and the auxiliary block bend at a certain angle, driving the movable part to rotate, and the collision between the movable part, the trigger and the auxiliary block can make a crisp sound, and cause a certain vibration to the rod handle, reminding the user that the torque wrench has been screwed into place.

[0042] Furthermore, the reversing device comprises:

[0043] ratchet;

[0044] pawl;

[0045] Cam;

[0046] An accommodating chamber connected to the ratchet, connected to the pawl, and connected to the cam;

[0047] A wheel cover connected to the accommodating cavity;

[0048] A second spring connected to the accommodating cavity;

[0049] Wherein, the fixed base is provided with a second connecting member, and the second connecting member is connected to the ratchet.

[0050] In the present technical solution, a accommodating chamber and a wheel cover are provided in the reversing device, and a cam, a ratchet, a pawl and a second spring are added to the accommodating chamber. After the cam rotates, it presses against the pawl on one side, and the pawl on the other side presses against the ratchet through the second spring, so that the ratchet can only rotate in one direction. When the direction needs to be changed, the cam is rotated to press against the pawl on the other side. The wheel cover covers the accommodating chamber, which can protect the internal structure of the reversing device. A second connecting member is provided on the fixed base, and the second connecting member and the ratchet are connected by a key, so that the reversing device is connected to the clamping device.

[0051] The beneficial effects of this application are:

[0052] 1. The device used to loosen and tighten bolts and nuts is changed to a clamping device with a round clamp, so that the torque wrench can adapt to bolts and nuts of most specifications. The round clamp has a large degree of freedom of movement on the plane, and its material is soft, which will not damage or scratch the outer surface of the bolts and nuts, and can clamp damaged bolts and nuts, and has a wider range of applications.

[0053] 2. The clamping device is equipped with a motor, which can control the tightness of the clamping device. Compared with manual clamping, it is more effective and can easily and effectively operate the torque wrench to control the bolts and nuts, making the use of the torque wrench more convenient.

[0054] 3. Provide reminder function and reversing function. Set the torque value. When the torque wrench reaches the applied torque value, the movable parts will collide with the inside of the rod mechanism, and feedback will be made with sound and vibration to remind the user that the set torque value has been reached. The reversing device enables the torque wrench to change direction through the ratchet structure, which is convenient for the user to use the torque wrench in practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 This is a schematic diagram of the structure of the torque wrench of this application;

[0056] Figure 2 This is a schematic diagram of the internal structure of the torque wrench of this application;

[0057] Figure 3 This is a schematic diagram of the internal structure of the reversing device of this application;

[0058] Figure 4 A schematic diagram of the structure of the assembly of the reversing device and the clamping device of the present application;

[0059] The reference numerals in the figure are as follows: 100, wrench body; 200, clamping device; 210, fixed base; 211, first gear; 212, screw; 213, motor; 214, power supply; 215, switch; 216, second connecting member; 220, movable frame; 221, second gear; 230, round clamp; 231, first clamp; 232, second clamp; 233, third clamp; 300, rod mechanism; 310, rod handle; 320, rod body; 330, first spring; 340, movable member; 350, trigger; 360, auxiliary block; 370, first connecting member; 400, reversing device; 410, ratchet; 420, pawl; 430, cam; 440, accommodating chamber; 450, wheel cover; 460, second spring. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0061] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0062] The following provides a detailed description of the embodiments of the present application through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0063] Embodiment 1:

[0064] like Figure 1-4 As shown, the embodiment of the present application provides a torque wrench, including a wrench body 100, wherein the wrench body 100 includes:

[0065] The clamping device 200 includes a round clamp 230;

[0066] Rod mechanism 300;

[0067] A reversing device 400, which is connected to the rod mechanism 300 and connected to the clamping device 200;

[0068] The round clamp 230 is connected to the clamping device 200 .

[0069] By providing a clamping device 200 with a round clamp 230 on the wrench body 100, the round clamp 230 can clamp most bolts and nuts through the control of the clamping device 200. During actual assembly, the models of bolts and nuts are generally different. During actual assembly, the user does not need to replace the sleeve, but only needs to adjust the round clamp 230, thereby shortening the processing time and improving assembly efficiency.

[0070] Furthermore, the clamping device 200 includes:

[0071] Fixed base 210;

[0072] A movable frame 220 connected to the fixed base 210;

[0073] The circular clamp 230 is placed on the fixed base 210 and the movable frame 220 .

[0074] By dividing the clamping device 200 into a fixed base 210 and a movable frame 220, the round clamp 230 is placed on the movable frame 220 and the fixed base 210, and the movable frame 220 can move on the fixed base 210. The round clamp 230 tightens and loosens the bolts and nuts through the positional relationship between the movable frame 220 and the fixed base 210, so that the torque wrench can tighten and loosen the bolts and nuts.

[0075] Furthermore, the circular clamp 230 includes:

[0076] A first clamp 231, which is connected to the fixed base 210 and connected to the movable frame 220;

[0077] A second clamping member 232 connected to the first clamping member 231;

[0078] The third clamping member 233 is connected to the second clamping member 232 .

[0079] By dividing the round clamp 230 into a first clamp 231, a second clamp 232 and a third clamp 233, the first clamp 231 can rotate a certain angle on the fixed base 210 or the movable frame 220, the second clamp 232 can rotate a certain angle on the first clamp 231, and the third clamp 233 can rotate on the second clamp 232, so that the round clamp 230 can be matched with bolts and nuts of various specifications. The third clamp 233 is made of a soft material and will not scratch or damage the contact surface with the bolts and nuts, and can protect the outer surface of the bolts and nuts. It can also clamp bolts and nuts with damaged contact surfaces, thereby expanding the scope of application.

[0080] Furthermore, the fixed base 210 includes:

[0081] A first gear 211;

[0082] Screw 212;

[0083] The movable frame 220 is provided with a second gear 221 , and the first gear 211 is placed on the fixed base 210 . The first gear 211 and the second gear 221 can transmit to each other.

[0084] By setting a first gear 211 and a screw rod 212 on the fixed base 210, and setting a second gear 221 on the movable frame 220, the screw rod 212 rotates to drive the first gear 211 to rotate and move, and the first gear 211 then drives the second gear 221 to rotate and move, so that the movable frame 220 can move on the fixed base 210 through the rotation of the screw rod 212, which facilitates the clamping device 200 to tighten and loosen the bolts and nuts.

[0085] Furthermore, the fixed base 210 further includes:

[0086] Motor 213;

[0087] A power source 214 connected to the motor 213;

[0088] Switch 215;

[0089] The motor 213 is placed on the screw rod 212 , and the switch 215 is placed on the power source 214 .

[0090] By adding a motor 213, a power supply 214 and a switch 215 that can control the forward and reverse rotation of the motor 213 on the fixed base 210, when it is necessary to tighten the bolts and nuts, the forward switch 215 is turned off, the power supply 214 starts the motor 213, and the motor 213 drives the screw 212 to rotate forward, so that the movable frame 220 is close to the fixed base 210, and the round clamp 230 can tighten the bolts and nuts. When it is necessary to loosen the bolts and nuts, the reverse switch 215 is turned off, the power supply 214 starts the motor 213, and the motor 213 drives the screw 212 to rotate reversely, so that the movable frame 220 is away from the fixed base 210, and the round clamp 230 can loosen the bolts and nuts.

[0091] Furthermore, the rod mechanism 300 includes:

[0092] A rod handle 310;

[0093] A rod body 320 connected to the rod handle 310;

[0094] A first spring 330;

[0095] Active parts 340;

[0096] The trigger 350 includes a first connecting member 370;

[0097] Auxiliary block 360;

[0098] The auxiliary block 360 is connected to the rod handle 310 via the first spring 330 , the movable member 340 is disposed between the trigger 350 and the auxiliary block 360 , and the first connecting member 370 is connected to the reversing device 400 .

[0099] By adding a first spring 330 to the rod mechanism 300, adjusting the position between the rod handle 310 and the rod body 320 by comparing with the scales on the rod handle 310 and the rod body 320, and adjusting the length of the first spring 330 at the same time, a suitable torque value can be set for operation, and a trigger 350 and a first connecting member 370 are added to connect the rod mechanism 300 and the reversing device 400. At the same time, a movable member 340 and an auxiliary block 360 are added, and the movable member 340 resists the auxiliary block 360 and the trigger 350. When the torque applied to the rod handle 310 reaches a specified value, the trigger 350 and the auxiliary block 360 are bent at a certain angle, driving the movable member 340 to rotate, and the collision between the movable member 340, the trigger 350 and the auxiliary block 360 can make a crisp sound and cause a certain vibration to the rod handle 310, reminding the user that the torque wrench has been tightened into place.

[0100] Embodiment 2:

[0101] like Figure 1-4 As shown, the embodiment of the present application provides a torque wrench, which, in addition to the technical solutions of the above embodiments, also has the following technical features. The reversing device 400 includes:

[0102] Ratchet 410;

[0103] Ratchet 420;

[0104] Cam 430;

[0105] The accommodating chamber 440 is connected to the ratchet 410, connected to the pawl 420, and connected to the cam 430;

[0106] A wheel cover 450 connected to the accommodating chamber 440;

[0107] A second spring 460 connected to the accommodating cavity 440;

[0108] The fixed base 210 is provided with a second connecting member 216 , and the second connecting member 216 is connected to the ratchet 410 .

[0109] By setting a accommodating chamber 440 and a wheel cover 450 in the reversing device 400, and then adding a cam 430, a ratchet 410, a pawl 420 and a second spring 460 in the accommodating chamber 440, the cam 430 rotates to support the pawl 420 on one side, and the pawl 420 on the other side supports the ratchet 410 through the second spring 460, so that the ratchet 410 can only rotate in one direction. When the direction needs to be changed, the cam 430 is rotated to support the pawl 420 on the other side. The wheel cover 450 covers the accommodating chamber 440, which can protect the internal structure of the reversing device 400, and a second connecting member 216 is provided on the fixed base 210. The second connecting member 216 and the ratchet 410 are connected by a key, so that the reversing device 400 is connected to the clamping device 200.

[0110] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0111] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A torque wrench, comprising a wrench body (100), characterized in that: The wrench body (100) comprises: A clamping device (200) comprising a round clamp (230); A rod mechanism (300); A reversing device (400), which is connected to the rod mechanism (300) and connected to the clamping device (200); Wherein, the clamping device (200) comprises: A fixed base (210); A movable frame (220) connected to the fixed base (210); Wherein, the circular clamp (230) is placed on the fixed base (210) and the movable frame (220); The round clamp (230) comprises: A first clamp (231), which is connected to the fixed base (210) and is connected to the movable frame (220); A second clamp (232) connected to the first clamp (231); A third clamping member (233), connected to the second clamping member (232); The reversing device (400) comprises: Ratchet (410); Ratchet (420); Cam (430); An accommodating chamber (440) connected to the ratchet (410), connected to the pawl (420), and connected to the cam (430); A wheel cover (450) connected to the accommodating chamber (440); A second spring (460) connected to the accommodating chamber (440); Wherein, the fixed base (210) is provided with a second connecting member (216), and the second connecting member (216) is connected to the ratchet (410).

2. A torque wrench according to claim 1, characterized in that: The fixed base (210) comprises: A first gear (211); Screw (212); The movable frame (220) is provided with a second gear (221), the first gear (211) is placed on the fixed base (210), and the first gear (211) and the second gear (221) can transmit power to each other.

3. A torque wrench according to claim 2, characterized in that: The fixed base (210) further comprises: Motor (213); A power source (214) connected to the motor (213); Switch(215); The motor (213) is placed on the screw (212), and the switch (215) is placed on the power source (214).

4. A torque wrench according to claim 3, characterized in that: The rod mechanism (300) comprises: A handle (310); A rod body (320) connected to the rod handle (310); A first spring (330); Movable parts (340); A trigger (350) comprising a first connecting member (370); AuxiliaryBlock(360); The auxiliary block (360) is connected to the rod handle (310) via a first spring (330), the movable member (340) is disposed between the trigger (350) and the auxiliary block (360), and the first connecting member (370) is connected to the reversing device (400).

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