Torque wrench with angle adjusting function

Abstract

The utility model discloses a torque wrench with an angle adjusting function, 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 a wrench head; the wrench rod part is connected with the wrench head part; the angle adjusting mechanism comprises a convex block and a limiting block; the length adjusting mechanism comprises a movable rod; the wrench handle part is in sliding connection with the movable rod; wherein the protruding block is provided with a rotating shaft and a ratchet, the protruding block is connected with the wrench rod part, the limiting block is in sliding connection with the movable rod, the limiting block is matched with the ratchet, and the protruding block is rotationally connected with the movable rod through the rotating shaft. According to the torque wrench with the angle adjusting function, after the angle of the wrench is adjusted, the wrench body can be rapidly and stably fixed, the length of the handle can be adjusted, and the working range is enlarged while the working efficiency is improved.

Description

Technical Field

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

[0002] A torque wrench is also called a torque wrench or an adjustable torque wrench. It is a type of wrench. According to the power source, it can be divided into: electric torque wrench, pneumatic torque wrench, hydraulic torque wrench and manual torque wrench. When the tightness of screws and bolts is critical, the use of a torque wrench allows the operator to apply a specific torque value. When the tightening torque of the fastener reaches the preset value, it can automatically send out a signal "click" accompanied by obvious hand vibration, indicating that the work is completed.

[0003] The existing Chinese patent with publication number CN216067223U discloses a torque wrench that is easy to adjust the angle, including a wrench head and a handle, the handle is a two-stage movable joint structure, and the handle includes a connecting handle, a bending handle and a turning handle. The device is provided with a connecting handle, a bending handle and an inclined rod, and the inclined rod is used to lock and adjust the bending angle between the connecting handle and the bending handle. The direction of the wrench head can be adjusted through the movable structure of the connecting handle and the bending handle.

[0004] Although the above-mentioned wrench can adjust the angle so that the operator can tighten the bolts and nuts without changing the usual force application action, thereby improving work efficiency, the process of locking the angle after the wrench is adjusted is rather cumbersome, which affects the assembly efficiency, and the handle length cannot be adjusted, which is inconvenient for assembling bolts and nuts in a narrow space deep inside. Utility Model Content

[0005] The purpose of this application is to provide a torque wrench with an angle adjustment function in order to solve the above-mentioned technical problems. After the angle of the wrench is adjusted, the wrench body can be quickly and stably fixed, and the length of the handle can be adjusted, thereby improving work efficiency and expanding the working range.

[0006] The present application provides a torque wrench with an angle adjustment function, comprising a wrench body, wherein the wrench body comprises:

[0007] Wrench head;

[0008] A wrench stem connected to the wrench head;

[0009] An angle adjustment mechanism, including a protrusion and a limiting block;

[0010] A length adjustment mechanism, including a movable rod;

[0011] A lever handle portion, which is slidably connected to the movable rod;

[0012] The protrusion is provided with a rotating shaft and a ratchet, the protrusion is connected to the wrench rod, the limiting block is slidably connected to the movable rod, the limiting block and the ratchet are matched, and the protrusion is rotationally connected to the movable rod through the rotating shaft.

[0013] In the technical scheme, an angle adjustment mechanism with a protrusion and a limiting block and a length adjustment mechanism with a movable rod are provided on the wrench body, and the protrusion is connected to the wrench rod, and the movable rod is slidably connected to the wrench handle. A rotating shaft and a ratchet are provided on the protrusion, and the protrusion is rotatably connected to the movable rod through the rotating shaft, that is, the wrench rod and the wrench handle are rotatably connected, so that the wrench body is easy to adjust the angle of the wrench head, which is convenient for workers to process some bolts and nuts set on an inclined surface or in a narrow position. The limiting block is slidably connected to the movable rod, and the limiting block is slid after the angle is adjusted, so that the limiting block and the ratchet cooperate, so that the protrusion and the movable rod constrain each other, and the wrench body is fixed after the angle is adjusted. The wrench body after the angle adjustment can be fixed by sliding the limiting block, thereby improving the assembly efficiency, and the movable rod is slidably connected to the wrench handle, so that the length of the wrench handle can be adjusted, which is convenient for processing bolts and nuts in deep and narrow positions, thereby expanding the working range of the wrench body.

[0014] Furthermore, the angle adjustment mechanism includes:

[0015] an electromagnet connected to the limiting block;

[0016] A return spring connected to the electromagnet;

[0017] A permanent magnet connected to the movable rod;

[0018] Wherein, the electromagnet is connected to the permanent magnet after being energized, and is reset by a reset spring when the electromagnet is de-energized, at which time the limiting block cooperates with the ratchet.

[0019] In the present technical scheme, an electromagnet, a reset spring and a permanent magnet are arranged on the angle adjustment mechanism, the reset spring is placed in the movable rod, and the reset spring is connected to the electromagnet, the electromagnet is connected to the limiting block, and the permanent magnet is connected to the movable rod. When the angle needs to be adjusted, the electromagnet is energized to connect the electromagnet and the permanent magnet, and the electromagnet drives the limiting block to slide, releasing the fit between the limiting block and the ratchet, so that the protrusion and the movable rod can rotate. When the wrench body needs to be fixed after the angle is adjusted, the electromagnet is de-energized to reset the electromagnet through the reset spring, and the limiting block and the ratchet are re-fitted, so that the protrusion and the movable rod are fixed. Therefore, the wrench body only needs to control the power on and off of the electromagnet to adjust the angle of the wrench head, so that the wrench body can be quickly and stably adjusted when adjusting the angle, thereby improving the assembly efficiency.

[0020] Furthermore, the length adjustment mechanism comprises:

[0021] A slider nut connected to the movable rod;

[0022] A slide rail connected to the movable rod;

[0023] A motor connected to the wrench handle;

[0024] A screw rod is connected to the motor and cooperates with the slider nut;

[0025] Wherein, the wrench handle is provided with a slide groove, and the slide rail cooperates with the slide groove.

[0026] In the present technical scheme, a slider nut and a slide rail are arranged on the movable rod in the length adjustment mechanism, and a motor connected to a screw rod is installed on the wrench handle part. The screw rod and the slider nut cooperate with each other so that when the motor drives the screw rod to rotate, the slider nut can be displaced on the screw rod. When the wrench handle part needs to be extended, the motor is rotated forward and the slider nut drives the movable rod away from the wrench handle part. When the wrench handle part needs to be shortened, the motor is reversed and the slider nut drives the movable rod close to the wrench handle part. A slide groove is arranged on the wrench handle part. Through the cooperation between the slide rail and the slide groove, the movable rod can slide stably on the wrench handle part, thereby facilitating the staff to adjust the length of the wrench handle part, facilitating the processing of bolts and nuts in deep and narrow positions, and expanding the working range of the wrench body.

[0027] Furthermore, the wrench body also includes:

[0028] A control switch is connected between the electromagnet and the motor.

[0029] In the present technical solution, a control switch connected to the electromagnet and the motor is provided on the wrench body. The control switch is placed at the handle end of the wrench handle to prevent the staff from touching it accidentally. There are three control buttons. The power button is in the middle to control the power on and off of the electromagnet and the motor, so as to adjust the angle. The forward and reverse buttons of the motor are on both sides to control the forward and reverse rotation of the motor, so as to adjust the length. Therefore, the staff can adjust the angle and length of the wrench body by adjusting the control switch, making the use of the wrench body more convenient.

[0030] Furthermore, the movable rod comprises:

[0031] An oiling groove is arranged at one end of the movable rod close to the protrusion.

[0032] In the present technical solution, an oiling groove is provided at one end of the movable rod close to the protrusion, which facilitates the rotation of the protrusion on the movable rod. After the wrench body has been used for a period of time, the ratchet teeth on the protrusion will be worn to a certain extent. Lubricating oil is applied to the ratchet teeth on the protrusion through the oiling groove to reduce the wear of the ratchet teeth. The staff can maintain and clean the ratchet teeth on the protrusion through the oiling groove, thereby extending the service life of the wrench body.

[0033] Furthermore, the wrench handle comprises:

[0034] Anti-slip cover;

[0035] Wherein, the anti-slip sleeve is provided with anti-slip grooves.

[0036] In the present technical solution, an anti-slip cover with anti-slip patterns is provided on the wrench handle. The outer contour of the anti-slip cover is arc-shaped, which conforms to the ergonomic design, and the anti-slip patterns are evenly distributed on the anti-slip cover, so that the staff can hold the wrench handle stably to prevent it from slipping out of the hand, thereby enhancing the stability of the wrench body during work.

[0037] The beneficial effects of this application are:

[0038] 1. The protrusion is rotatably connected to the movable rod through the rotating shaft, so that the wrench body is easy to adjust the angle of the wrench head, which is convenient for processing bolts and nuts located on inclined surfaces or narrow positions. After adjusting the angle, the limiting block is slid to cooperate with the ratchet. At this time, the protrusion and the movable rod are fixedly connected, and the sliding limiting block can fix the wrench body. The movable rod and the wrench handle are slidably connected, and the length of the wrench handle can be adjusted to process bolts and nuts in deep and narrow positions, thereby improving assembly efficiency and expanding the working range.

[0039] 2. When adjusting the angle, the electromagnet is energized and connected to the permanent magnet, driving the limit block to slide, disconnecting the limit block from the ratchet, and rotating the convex block and the movable rod. When fixing the angle, the electromagnet is de-energized and reset by the reset spring, driving the limit block from the ratchet, and fixing the convex block and the movable rod. The angle of the wrench head can be adjusted by controlling the on and off of the electromagnet, so that the wrench body can be adjusted quickly and stably.

[0040] 3. When the motor drives the screw to rotate, the slider nut moves on the screw. When the wrench handle is extended, the motor rotates forward, and the slider nut drives the movable rod away from the wrench handle. When the wrench handle is shortened, the motor rotates reversely, and the slider nut drives the movable rod close to the wrench handle, so that the staff can adjust the length of the wrench, which is convenient for processing bolts and nuts in deep and narrow positions, and expanding the working range of the wrench body. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic structural diagram of a torque wrench with angle adjustment function in the present application;

[0042] Figure 2 This is a schematic diagram of the structure of the torque wrench after adjusting the angle and length;

[0043] Figure 3 It is a structural schematic diagram of the angle adjustment mechanism and the length adjustment mechanism;

[0044] Figure 4 It is a structural schematic diagram of the angle adjustment mechanism and the length adjustment mechanism from another perspective;

[0045] The reference numerals in the figure are as follows: 100, wrench body; 110, control switch; 200, wrench head; 300, wrench rod; 400, angle adjustment mechanism; 410, bump; 411, rotating shaft; 412, ratchet; 420, limiting block; 430, electromagnet; 440, return spring; 450, permanent magnet; 500, length adjustment mechanism; 510, movable rod; 511, oiling groove; 520, slider nut; 530, slide rail; 540, motor; 550, screw rod; 600, wrench handle; 610, slide groove; 620, anti-slip sleeve; 621, anti-slip pattern. DETAILED DESCRIPTION

[0046] 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.

[0047] 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.

[0048] 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.

[0049] Embodiment 1:

[0050] like Figure 1-4 As shown, the embodiment of the present application provides a torque wrench with an angle adjustment function, including a wrench body 100, wherein the wrench body 100 includes:

[0051] Wrench head 200;

[0052] A wrench stem 300 connected to the wrench head 200;

[0053] Angle adjustment mechanism 400, including a protrusion 410 and a limiting block 420;

[0054] The length adjustment mechanism 500 includes a movable rod 510;

[0055] A lever handle 600 is slidably connected to the movable rod 510;

[0056] Among them, the protrusion 410 is provided with a rotating shaft 411 and a ratchet 412, the protrusion 410 is connected to the wrench rod 300, the limiting block 420 is slidingly connected to the movable rod 510, the limiting block 420 and the ratchet 412 cooperate with each other, and the protrusion 410 is rotationally connected to the movable rod 510 through the rotating shaft 411.

[0057] By arranging an angle adjustment mechanism 400 with a protrusion 410 and a limiting block 420 and a length adjustment mechanism 500 with a movable rod 510 on the wrench body 100, and the protrusion 410 is connected to the wrench rod 300, and the movable rod 510 is slidably connected to the wrench handle 600, and a rotating shaft 411 and a ratchet 412 are arranged on the protrusion 410, the protrusion 410 is rotatably connected to the movable rod 510 through the rotating shaft 411, that is, the wrench rod 300 and the wrench handle 600 are rotatably connected, the wrench body 100 is easy to adjust the angle of the wrench head 200, and it is convenient for workers to process some parts set on an inclined surface or set For bolts and nuts in narrow positions, the limiting block 420 is slidably connected to the movable rod 510. After the angle is adjusted, the limiting block 420 is slid to cooperate with the ratchet 412, so that the protrusion 410 and the movable rod 510 constrain each other. The wrench body 100 is fixed after the angle is adjusted. The sliding of the limiting block 420 can fix the wrench body 100 after the angle is adjusted, thereby improving the assembly efficiency. The movable rod 510 is slidably connected to the wrench handle part 600, so that the length of the wrench handle part 600 can be adjusted, which is convenient for processing bolts and nuts in deep and narrow positions, thereby expanding the working range of the wrench body 100.

[0058] Furthermore, the angle adjustment mechanism 400 includes:

[0059] an electromagnet 430 connected to the limiting block 420;

[0060] a return spring 440 connected to the electromagnet 430;

[0061] A permanent magnet 450 connected to the movable rod 510;

[0062] The electromagnet 430 is connected to the permanent magnet 450 after being energized, and is reset by the reset spring 440 when being de-energized, and at this time, the limiting block 420 cooperates with the ratchet 412 .

[0063] By arranging the electromagnet 430, the return spring 440 and the permanent magnet 450 on the angle adjustment mechanism 400, the return spring 440 is placed in the movable rod 510, and the return spring 440 is connected to the electromagnet 430, the electromagnet 430 is connected to the limiting block 420, and the permanent magnet 450 is connected to the movable rod 510. When the angle needs to be adjusted, the electromagnet 430 is energized to connect the electromagnet 430 and the permanent magnet 450, and the electromagnet 430 drives the limiting block 420 to slide, releasing the limiting block 420 from the ratchet 410. 2, so that the projection 410 and the movable rod 510 can rotate. When the wrench body 100 needs to be fixed after the angle is adjusted, the electromagnet 430 is powered off, so that the electromagnet 430 is reset through the reset spring 440, and the limiting block 420 and the ratchet 412 are re-matched, so that the projection 410 and the movable rod 510 are fixed. Therefore, the wrench body 100 only needs to control the electromagnet 430 to turn on and off to adjust the angle of the wrench head 200, so that the wrench body 100 can be quickly and stably adjusted when adjusting the angle, so as to improve the assembly efficiency.

[0064] Furthermore, the length adjustment mechanism 500 includes:

[0065] A slider nut 520 connected to the movable rod 510;

[0066] A slide rail 530 connected to the movable rod 510;

[0067] The motor 540 is connected to the wrench handle 600;

[0068] The screw rod 550 is connected to the motor 540 and cooperates with the slider nut 520;

[0069] The wrench handle portion 600 is provided with a slide groove 610 , and the slide rail 530 cooperates with the slide groove 610 .

[0070] By arranging a slider nut 520 and a slide rail 530 on the movable rod 510 in the length adjustment mechanism 500, and installing a motor 540 connected with a screw rod 550 on the wrench handle portion 600, the screw rod 550 cooperates with the slider nut 520, so that when the motor 540 drives the screw rod 550 to rotate, the slider nut 520 can move on the screw rod 550. When the wrench handle portion 600 needs to be extended, the motor 540 is rotated forward, and the slider nut 520 drives the movable rod 510 away from the wrench handle portion 600. 00, when the wrench handle portion 600 needs to be shortened, the motor 540 is reversed, and the slider nut 520 drives the movable rod 510 to approach the wrench handle portion 600, and a slide groove 610 is provided on the wrench handle portion 600. Through the cooperation between the slide rail 530 and the slide groove 610, the movable rod 510 can slide stably on the wrench handle portion 600, thereby facilitating the staff to adjust the length of the wrench handle portion 600, facilitating the processing of bolts and nuts in deep and narrow positions, and expanding the working range of the wrench body 100.

[0071] Embodiment 2:

[0072] like Figure 1-4 As shown, the embodiment of the present application provides a torque wrench with an angle adjustment function, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features. The wrench body 100 also includes:

[0073] The control switch 110 is connected between the electromagnet 430 and the motor 540 .

[0074] By providing a control switch 110 connected between the electromagnet 430 and the motor 540 on the wrench body 100, the control switch 110 is placed at the handle end of the wrench handle 600 to prevent the staff from accidentally touching it. There are three control buttons, the power button in the middle is used to control the power on and off of the electromagnet 430 and the motor 540, so as to adjust the angle, and the forward and reverse buttons of the motor 540 are located on both sides to control the forward and reverse rotation of the motor 540, so as to adjust the length. Therefore, the staff can adjust the angle and length of the wrench body 100 by adjusting the control switch 110, making the use of the wrench body 100 more convenient.

[0075] Furthermore, the movable rod 510 includes:

[0076] The oiling groove 511 is disposed at one end of the movable rod 510 close to the protrusion 410 .

[0077] By setting an oiling groove 511 at one end of the movable rod 510 close to the protrusion 410, the oiling groove 511 facilitates the rotation of the protrusion 410 on the movable rod 510. After the wrench body 100 has been used for a period of time, the ratchet teeth 412 on the protrusion 410 will have a certain wear. Lubricating oil is applied to the ratchet teeth 412 on the protrusion 410 through the oiling groove 511 to reduce the wear of the ratchet teeth 412, so that the staff can maintain and clean the ratchet teeth 412 on the protrusion 410 through the oiling groove 511, thereby extending the service life of the wrench body 100.

[0078] Furthermore, the wrench handle portion 600 includes:

[0079] Anti-slip cover 620;

[0080] The anti-slip cover 620 is provided with anti-slip patterns 621 .

[0081] By providing an anti-slip cover 620 with anti-slip grooves 621 on the wrench handle 600, the outer contour of the anti-slip cover 620 is arc-shaped, which conforms to the ergonomic design, and the anti-slip grooves 621 are evenly distributed on the anti-slip cover 620, so that the staff can hold the wrench handle 600 stably to prevent it from slipping, thereby enhancing the stability of the wrench body 100 during work.

[0082] 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.

[0083] 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 an angle adjustment function, comprising a wrench body (100), characterized in that: The wrench body (100) comprises: Wrench head (200); A wrench rod (300) connected to the wrench head (200); An angle adjustment mechanism (400) comprises a protrusion (410) and a limiting block (420); A length adjustment mechanism (500) comprising a movable rod (510); A wrench handle portion (600) which is slidably connected to the movable rod (510); The protrusion (410) is provided with a rotating shaft (411) and a ratchet (412); the protrusion (410) is connected to the wrench rod (300); the limiting block (420) is slidably connected to the movable rod (510); the limiting block (420) and the ratchet (412) are matched; the protrusion (410) is rotatably connected to the movable rod (510) via the rotating shaft (411).

2. A torque wrench with angle adjustment function according to claim 1, characterized in that: The angle adjustment mechanism (400) comprises: An electromagnet (430) connected to the limiting block (420); A return spring (440) connected to the electromagnet (430); A permanent magnet (450) connected to the movable rod (510); When the electromagnet (430) is powered on, it is connected to the permanent magnet (450). When the electromagnet (430) is powered off, it is reset by the reset spring (440), and at this time, the limiting block (420) and the ratchet (412) are matched.

3. The torque wrench with angle adjustment function according to claim 2, characterized in that: The length adjustment mechanism (500) comprises: A slider nut (520) connected to the movable rod (510); A slide rail (530) connected to the movable rod (510); A motor (540) connected to the wrench handle (600); A screw rod (550) connected to the motor (540) and matched with the slider nut (520); Wherein, the wrench handle portion (600) is provided with a slide groove (610), and the slide rail (530) cooperates with the slide groove (610).

4. The torque wrench with angle adjustment function according to claim 3, characterized in that: The wrench body (100) further comprises: A control switch (110) is connected between the electromagnet (430) and the motor (540).

5. The torque wrench with angle adjustment function according to claim 4, characterized in that: The movable rod (510) comprises: The oiling groove (511) is disposed at one end of the movable rod (510) close to the protrusion (410).

6. The torque wrench with angle adjustment function according to claim 5, characterized in that: The wrench handle (600) comprises: Anti-slip cover (620); Wherein, the anti-slip cover (620) is provided with anti-slip grooves (621).

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