Torque wrench with locking mechanism

Abstract

The utility model discloses a torque wrench with a locking mechanism, and belongs to the technical field of torque wrenchs.The torque wrench is characterized in that the torque wrench comprises a wrench body, and the wrench body comprises the locking mechanism which comprises a first locking clamping jaw, a second locking clamping jaw, a rotating device and a telescopic device; a wrench; the wrench rod part is connected with the wrench head; wherein the first locking clamping jaw is rotationally connected with a rotating device, the first locking clamping jaw is installed at the wrench head, the telescopic device is rotationally connected with a rotating device, the second locking clamping jaw is connected with the telescopic device, and the second locking clamping jaw is installed at the wrench rod part. According to the torque wrench with the locking mechanism, the locking mechanism is internally provided with the two locking clamping jaws, the locking clamping jaws can lock more objects through rotating and stretching out and drawing back, and the torque wrench has the excellent locking effect.

Description

Technical Field

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

[0002] A torque wrench, also known as an electric torque wrench, torque wrench, or adjustable torque wrench, is a type of wrench that is generally divided into three categories: manual torque wrench, pneumatic torque wrench, and electric torque wrench. When a torque wrench is in use, when the rotational torque is greater than the set value, a clicking sound will be made, and even if it continues to rotate in this state, the torque will not be transmitted to the bolt (nut).

[0003] The existing Chinese patent with publication number CN216030454U discloses a torque wrench with a locking function, including a torque wrench body, a locking movable shaft, a wrench block, a control end, and a control button. The locking movable shaft is movably installed on one side of the surface of the torque wrench body, and the wrench block is fixedly installed on the left side of the torque wrench body, and the control end is fixedly installed on the right side of the torque wrench body. The control button is movably installed on one side of the surface of the control end.

[0004] Although the torque wrench can be fixed on the object to be turned so that the wrench can be released during the turning process, the wrench has only a small and single locking block, so that the objects that can be locked are relatively small and the locking effect is poor. Utility Model Content

[0005] The purpose of this application is to provide a torque wrench with a locking mechanism in order to solve the above-mentioned technical problems, wherein the locking mechanism is provided with two locking jaws, which can lock more objects by rotating and extending, so that the wrench has an excellent locking effect.

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

[0007] The locking mechanism comprises a first locking jaw, a second locking jaw, a rotating device and a telescopic device;

[0008] wrench;

[0009] A wrench rod connected to the wrench head;

[0010] Among them, the first locking jaw is rotatably connected with a rotating device, the first locking jaw is installed at the wrench head, the telescopic device is rotatably connected with a rotating device, the second locking jaw is connected to the telescopic device, and the second locking jaw is installed at the wrench rod.

[0011] In the technical solution, a first locking jaw rotatably connected to a rotating device is provided on the locking mechanism in the wrench body, the first locking jaw is installed at the wrench head, and a second locking jaw connected to a telescopic device is further provided on the locking mechanism, the telescopic device is rotatably connected to the second rotating device, and the second locking jaw is installed at the wrench rod. In some special working environments, such as aerial work and pipeline work, when it is necessary to release the hand to perform other operations, the wrench is not convenient to place. However, when the wrench head needs to be released after clamping the bolt and nut, the cooperation between the first locking jaw and the second locking jaw can stably lock the wrench head. The bolts and nuts allow the staff to take their hands off to do other work, and the locking jaws are arranged in two, so that the wrench has a better locking effect. When it is inconvenient to lock on the bolts and nuts, the second locking jaw can be extended to other positions of the object through the telescopic device and the rotating device, and the wrench body can be locked on the object according to actual conditions, thereby expanding the scope of application. The first locking jaw is placed on the wrench head, and the second locking jaw is placed on the wrench rod. When the wrench body is locking the object, due to a certain distance between the jaws, the locking mechanism can bear the weight of the wrench body more evenly, thereby enhancing the stability of the locking mechanism. Combined with the above technical features, the wrench body has an excellent locking effect.

[0012] Furthermore, the rotating device comprises:

[0013] First motor;

[0014] A first gear connected to the first motor;

[0015] A second gear, which cooperates with the first gear;

[0016] Wherein, the second gear is connected to the first locking clamp, and the second gear is connected to the telescopic device.

[0017] In the present technical solution, a first motor with a first gear and a second gear are arranged on the rotating device, and the second gear cooperates with the first gear. When the first motor rotates, it drives the first gear to rotate, and at the same time, the first gear drives the second gear to rotate. The first locking jaw is connected to the second gear, and the telescopic device is connected to the second gear on the second rotating device. When locking is required, the first motor is started to drive the first locking jaw and the telescopic device to rotate to a suitable position, and the telescopic device then extends the second locking jaw to a suitable position for locking an object, which is convenient for the wrench body to lock the object. The structure of the rotating device is simple and stable, and the staff can quickly rotate the first locking jaw and the telescopic device to a suitable position to speed up the locking speed of the wrench body.

[0018] Furthermore, the telescopic device comprises:

[0019] A first telescopic rod, comprising a second motor and a screw rod;

[0020] The second telescopic rod comprises a sliding shaft, a first pulley and a second pulley;

[0021] A third telescopic rod connected to the second locking clamping claw;

[0022] A steel wire rope, which cooperates with the first pulley and the second pulley;

[0023] Among them, the first telescopic rod is connected to the second gear, the sliding shaft is matched with the screw rod, the sliding shaft is connected to the first pulley, and the second pulley is installed at the bottom of the second telescopic rod.

[0024] In the technical solution, three telescopic rods are arranged on the telescopic device, wherein the first telescopic rod is connected to the second gear, so that the telescopic device is rotatably connected to the rotating device, a second motor and a screw rod are arranged in the first telescopic rod, a sliding shaft, a first pulley and a second pulley are arranged in the second telescopic rod, and a second locking clamp is connected to the third telescopic rod. Through the cooperation between the sliding shaft and the screw rod, when the second motor rotates, the sliding shaft can be displaced on the screw rod, and a first pulley is installed on the sliding shaft, and a second pulley is installed at the bottom of the second telescopic rod, which cooperates with the first pulley. One end of the steel wire rope is connected to the top of the first telescopic rod, and the other end is connected to the top of the third telescopic rod. One end of the steel wire rope matched with the second pulley is connected to the bottom of the first telescopic rod, and the other end is connected to the top of the third telescopic rod. Therefore, when the second telescopic rod is telescoped on the first telescopic rod, the third telescopic rod is synchronized with the second telescopic rod through the cooperation between the first pulley, the second pulley and the steel wire rope, thereby accelerating the telescopic efficiency of the telescopic device, that is, accelerating the speed at which the wrench body is locked, thereby enhancing the locking effect of the wrench body.

[0025] Furthermore, the wrench head is provided with a first rotating block, and the wrench rod is provided with a second rotating block;

[0026] Among them, the first rotating block is rotationally connected to the wrench head, the second rotating block is rotationally connected to the wrench rod, the rotating device connected to the first locking clamp is connected to the first rotating block, and the rotating device connected to the telescopic device is connected to the second rotating block.

[0027] In the present technical solution, a first rotating block is provided on the wrench head, a rotating device connected to the first locking jaw is connected to the first rotating block, a second rotating block is provided on the wrench rod, a rotating device connected to the telescopic device is connected to the second rotating block, the first locking jaw is stored by rotating the first rotating block, and the second locking jaw and the telescopic device are stored by rotating the second rotating block, so as to reduce the space occupied by the wrench body when idle, and at the same time avoid the wrench body being affected by the locking mechanism when in use.

[0028] Furthermore, the second locking jaw includes:

[0029] Pressure sensor;

[0030] A buzzer is connected to the pressure sensor.

[0031] In the present technical solution, a pressure sensor and a buzzer are arranged on the second locking jaw, the buzzer and the pressure sensor are connected, and a pressure value in the pressure sensor is set. Under this pressure value, the wrench body will not cause the locking mechanism to detach from the object due to its own weight. When the first locking jaw rotates to a position suitable for locking the object, the second locking jaw is controlled to move to a position where it can stably lock the object. When the pressure sensor detects that the pressure of the second locking jaw pressing on the object reaches a specified pressure value, the buzzer is controlled to alarm to remind the staff to let go, thereby enhancing the interactivity between man and machine.

[0032] Furthermore, the locking mechanism is provided with a rubber pad;

[0033] Wherein, the rubber pad is connected between the first locking jaw and the second locking jaw.

[0034] In the present technical solution, a rubber pad is provided on the locking mechanism, and the rubber pad is installed on the clamping ends of the first locking jaw and the second locking jaw. The rubber pad increases the friction between the first locking jaw and the second locking jaw, making the first locking jaw and the second locking jaw more stable when clamping objects. The rubber pad is made of a relatively soft material, which can reduce the wear of the locking mechanism on the object.

[0035] The beneficial effects of this application are:

[0036] 1. It is inconvenient to put the wrench when it needs to be released. However, the wrench can stably lock the object through the cooperation between the first locking jaw and the second locking jaw, so that the staff can release the wrench to do other work, and the second locking jaw can be extended to other positions of the object through the telescopic device. The staff can lock the wrench body on the object according to the specific situation, which expands the scope of application. There is a certain distance between the two jaws, so that the locking mechanism can bear the weight of the wrench body more evenly to enhance the stability of the locking mechanism.

[0037] 2. When locking, start the first motor to drive the first locking jaw and the telescopic device to rotate to a suitable position. The telescopic device then extends the second locking jaw to a suitable position for locking the object, which is convenient for the wrench body to lock the object. The structure of the rotating device is simple and stable, and can quickly rotate the first locking jaw and the telescopic device to a suitable position, thereby speeding up the speed of locking the object by the wrench body.

[0038] 3. When the second telescopic rod is extended and retracted on the first telescopic rod, the third telescopic rod is synchronized with the second telescopic rod through the cooperation between the first pulley, the second pulley and the wire rope, so as to speed up the efficiency of the telescopic device, that is, speed up the locking speed. At the same time, the structure of the telescopic device is stable and reliable, which is conducive to enhancing the locking effect of the wrench body. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic structural diagram of a torque wrench with a locking mechanism in the present application;

[0040] Figure 2 This is a schematic structural diagram of a torque wrench with a locking mechanism in the present application after the locking mechanism is stored;

[0041] Figure 3 is a schematic structural diagram of the first locking clamp and the rotating device;

[0042] Figure 4 It is a schematic diagram of the structure of the second locking clamping jaw, the rotating device and the telescopic device;

[0043] The reference numerals in the figure are as follows: 100, wrench body; 200, locking mechanism; 201, rubber pad; 210, first locking jaw; 220, second locking jaw; 221, pressure sensor; 222, buzzer; 230, rotating device; 231, first motor; 232, first gear; 233, second gear; 240, telescopic device; 241, first telescopic rod; 242, second telescopic rod; 243, third telescopic rod; 244, wire rope; 245, second motor; 246, screw rod; 247, sliding shaft; 248, first pulley; 249, second pulley; 300, wrench head; 310, first rotating block; 400, wrench rod; 410, second rotating block. DETAILED DESCRIPTION

[0044] 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.

[0045] 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.

[0046] 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.

[0047] Embodiment 1:

[0048] like Figure 1-4 As shown, the embodiment of the present application provides a torque wrench with a locking mechanism, including a wrench body 100, wherein the wrench body 100 includes:

[0049] The locking mechanism 200 includes a first locking jaw 210, a second locking jaw 220, a rotating device 230 and a telescopic device 240;

[0050] Wrench 300;

[0051] A wrench rod 400 connected to the wrench head 300;

[0052] The first locking jaw 210 is rotatably connected to a rotating device 230, the first locking jaw 210 is installed at the wrench head 300, the telescopic device 240 is rotatably connected to the rotating device 230, the second locking jaw 220 is connected to the telescopic device 240, and the second locking jaw 220 is installed at the wrench rod 400.

[0053] The locking mechanism 200 in the wrench body 100 is provided with a first locking jaw 210 rotatably connected to the rotating device 230, the first locking jaw 210 is installed at the wrench head 300, and the locking mechanism 200 is also provided with a second locking jaw 220 connected to the telescopic device 240, the telescopic device 240 is rotatably connected to the second rotating device 230, and the second locking jaw 220 is installed at the wrench rod 400. In some special working environments, such as high-altitude operations and pipeline operations, when it is necessary to release the hand to perform other operations, the wrench is not convenient to place. When the wrench head 300 needs to be released after clamping the bolt and nut, the cooperation between the first locking jaw 210 and the second locking jaw 220 can stably lock the wrench head 300. The bolt and nut can be combined, so that the staff can take their hands off to do other work, and the locking jaws are arranged in two, so that the wrench has a better locking effect. When it is inconvenient to lock on the bolt and nut, the second locking jaw 220 can be extended to other positions of the object through the telescopic device 240 and the rotating device 230, and the wrench body 100 is locked on the object according to actual conditions, thereby expanding the scope of application. The first locking jaw 210 is placed on the wrench head 300, and the second locking jaw 220 is placed on the wrench rod 400. When the wrench body 100 is locking the object, due to the certain distance between the jaws, the locking mechanism 200 can bear the weight of the wrench body 100 more evenly, thereby enhancing the stability of the locking mechanism 200. Combined with the above technical features, the wrench body 100 has an excellent locking effect.

[0054] Furthermore, the rotating device 230 includes:

[0055] A first motor 231;

[0056] A first gear 232 connected to the first motor 231;

[0057] A second gear 233, which cooperates with the first gear 232;

[0058] The second gear 233 is connected to the first locking jaw 210 , and the second gear 233 is connected to the telescopic device 240 .

[0059] By arranging a first motor 231 with a first gear 232 and a second gear 233 on the rotating device 230, the second gear 233 cooperates with the first gear 232, and when the first motor 231 rotates, the first gear 232 is driven to rotate, and at the same time, the first gear 232 drives the second gear 233 to rotate, the first locking jaw 210 is connected to the second gear 233, and the telescopic device 240 is connected to the second gear 233 on the second rotating device 230. When locking is required, the first motor 231 is started to drive the first locking jaw 210 and the telescopic device 240 to rotate to a suitable position, and the telescopic device 240 then extends the second locking jaw 220 to a suitable position for locking an object, so that the wrench body 100 can lock an object. In addition, the structure of the rotating device 230 is simple and stable, and the staff can quickly rotate the first locking jaw 210 and the telescopic device 240 to a suitable position to speed up the locking speed of the wrench body 100.

[0060] Furthermore, the telescopic device 240 includes:

[0061] The first telescopic rod 241 includes a second motor 245 and a screw rod 246;

[0062] The second telescopic rod 242 includes a sliding shaft 247, a first pulley 248 and a second pulley 249;

[0063] A third telescopic rod 243 connected to the second locking clamp 220;

[0064] The wire rope 244 cooperates with the first pulley 248 and the second pulley 249;

[0065] The first telescopic rod 241 is connected to the second gear 233 , the sliding shaft 247 is matched with the screw rod 246 , the sliding shaft 247 is connected to the first pulley 248 , and the second pulley 249 is installed at the bottom of the second telescopic rod 242 .

[0066] By arranging three telescopic rods on the telescopic device 240, wherein the first telescopic rod 241 is connected to the second gear 233, the telescopic device 240 is rotatably connected to the rotating device 230, the first telescopic rod 241 is provided with a second motor 245 and a screw rod 246, the second telescopic rod 242 is provided with a sliding shaft 247, a first pulley 248 and a second pulley 249, the third telescopic rod 243 is connected with a second locking clamp 220, through the cooperation between the sliding shaft 247 and the screw rod 246, when the second motor 245 rotates, the sliding shaft 247 can be displaced on the screw rod 246, and the first pulley 248 is installed on the sliding shaft 247, and the second pulley 249 is installed at the bottom of the second telescopic rod 242, and the first pulley 220 is installed at the bottom of the second telescopic rod 242. 48, one end of the steel wire rope 244 is connected to the top of the first telescopic rod 241, and the other end is connected to the top of the third telescopic rod 243. The steel wire rope 244 cooperated with the second pulley 249 is connected to the bottom of the first telescopic rod 241, and the other end is connected to the top of the third telescopic rod 243. Therefore, when the second telescopic rod 242 is telescoped on the first telescopic rod 241, the third telescopic rod 243 is synchronized with the second telescopic rod 242 through the cooperation between the first pulley 248, the second pulley 249 and the steel wire rope 244, thereby accelerating the telescopic efficiency of the telescopic device 240, that is, accelerating the speed at which the wrench body 100 is locked, thereby enhancing the locking effect of the wrench body 100.

[0067] Embodiment 2:

[0068] like Figure 1-4 As shown, the embodiment of the present application provides a torque wrench with a locking mechanism, which, in addition to the technical solutions of the above embodiments, also has the following technical features: The wrench head 300 is provided with a first rotating block 310, and the wrench rod 400 is provided with a second rotating block 410;

[0069] Among them, the first rotating block 310 is rotationally connected to the wrench head 300, the second rotating block 410 is rotationally connected to the wrench rod 400, the rotating device 230 connected to the first locking clamp 210 is connected to the first rotating block 310, and the rotating device 230 connected to the telescopic device 240 is connected to the second rotating block 410.

[0070] By arranging a first rotating block 310 on the wrench head 300, connecting the rotating device 230 connected to the first locking jaw 210 and the first rotating block 310, and arranging a second rotating block 410 on the wrench rod 400, connecting the rotating device 230 connected to the telescopic device 240 and the second rotating block 410, the first locking jaw 210 is stored by rotating the first rotating block 310, and the second locking jaw 220 and the telescopic device 240 are stored by rotating the second rotating block 410, so as to reduce the space occupied by the wrench body 100 when idle, and at the same time avoid the wrench body 100 being affected by the locking mechanism 200 when in use.

[0071] Furthermore, the second locking jaw 220 includes:

[0072] Pressure sensor 221;

[0073] The buzzer 222 is connected to the pressure sensor 221 .

[0074] By arranging a pressure sensor 221 and a buzzer 222 on the second locking jaw 220, the buzzer 222 is connected to the pressure sensor 221, and a pressure value in the pressure sensor 221 is set. Under this pressure value, the wrench body 100 will not cause the locking mechanism 200 to separate from the object due to its own weight. When the first locking jaw 210 rotates to a position suitable for locking the object, the second locking jaw 220 is controlled to move to a position where the object can be stably locked. When the pressure sensor 221 detects that the pressure of the second locking jaw 220 pressing on the object reaches a specified pressure value, the buzzer 222 is controlled to alarm to remind the staff to let go, thereby enhancing the interactivity between man and machine.

[0075] Furthermore, the locking mechanism 200 is provided with a rubber pad 201;

[0076] The rubber pad 201 is connected to the first locking jaw 210 and the second locking jaw 220 .

[0077] By setting a rubber pad 201 on the locking mechanism 200, the rubber pad 201 is installed on the clamping ends of the first locking jaw 210 and the second locking jaw 220. The rubber pad 201 increases the friction between the first locking jaw 210 and the second locking jaw 220, making the first locking jaw 210 and the second locking jaw 220 more stable when clamping an object. The rubber pad 201 is made of a softer material and can reduce the wear of the locking mechanism 200 on the object.

[0078] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment 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.

[0079] 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 with a locking mechanism, comprising a wrench body (100), characterized in that: The wrench body (100) comprises: The locking mechanism (200) comprises a first locking jaw (210), a second locking jaw (220), a rotating device (230) and a telescopic device (240); Wrench (300); A wrench rod (400) connected to the wrench head (300); The first locking jaw (210) is rotatably connected to a rotating device (230), the first locking jaw (210) is installed at the wrench head (300), the telescopic device (240) is rotatably connected to the rotating device (230), the second locking jaw (220) is connected to the telescopic device (240), and the second locking jaw (220) is installed at the wrench rod (400).

2. A torque wrench with a locking mechanism according to claim 1, characterized in that: The rotating device (230) comprises: A first motor (231); A first gear (232) connected to the first motor (231); A second gear (233) which cooperates with the first gear (232); Wherein, the second gear (233) is connected to the first locking clamp (210), and the second gear (233) is connected to the telescopic device (240).

3. A torque wrench with a locking mechanism according to claim 2, characterized in that: The telescopic device (240) comprises: The first telescopic rod (241) includes a second motor (245) and a screw rod (246); The second telescopic rod (242) comprises a sliding shaft (247), a first pulley (248) and a second pulley (249); A third telescopic rod (243), which is connected to the second locking clamp (220); A steel wire rope (244) is engaged with a first pulley (248) and a second pulley (249); The first telescopic rod (241) is connected to the second gear (233), the sliding shaft (247) is matched with the screw rod (246), the sliding shaft (247) is connected to the first pulley (248), and the second pulley (249) is installed at the bottom of the second telescopic rod (242).

4. A torque wrench with a locking mechanism according to claim 3, characterized in that: The wrench head (300) is provided with a first rotating block (310), and the wrench rod (400) is provided with a second rotating block (410); The first rotating block (310) is rotationally connected to the wrench head (300), the second rotating block (410) is rotationally connected to the wrench rod (400), the rotating device (230) connected to the first locking clamp (210) is connected to the first rotating block (310), and the rotating device (230) connected to the telescopic device (240) is connected to the second rotating block (410).

5. A torque wrench with a locking mechanism according to claim 4, characterized in that: The second locking clamp (220) comprises: Pressure sensor (221); The buzzer (222) is connected to the pressure sensor (221).

6. A torque wrench with a locking mechanism according to claim 5, characterized in that: The locking mechanism (200) is provided with a rubber pad (201); Wherein, the rubber pad (201) is connected between the first locking clamping jaw (210) and the second locking clamping jaw (220).

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