Torque wrench with good anti-bending effect

Abstract

The utility model discloses a torque wrench with a good anti-bending effect, 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 telescopic rod comprising a fixed rod and a movable rod; the first anti-bending assembly comprises an anti-bending shell and a balance rod; the second anti-bending assembly comprises an anti-bending block; the wrench head is connected with the movable rod; the anti-skid sleeve is connected with the fixing rod; wherein the fixed rod is provided with a limiting groove, the anti-bending shell is rotationally connected with the fixed rod through the limiting groove, and the anti-bending block is arranged at the joint of the fixed rod and the movable rod. The torque wrench with the good anti-bending effect is provided with the anti-bending assembly used for improving the anti-bending effect and has the telescopic function, and the anti-bending effect is still high after the wrench stretches out and draws back.

Description

Technical Field

[0001] The present application belongs to the technical field of torque wrenches, and in particular relates to a torque wrench with good anti-bending effect. 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 CN218747434U discloses a torque wrench with good bending resistance, including: a torque wrench head, a square tenon is arranged on the left side of the torque wrench head, a fixing rod is welded to the bottom of the torque wrench head, a handle is sleeved on the bottom of the surface of the fixing rod, a high-strength layer is arranged on the surface of the fixing rod, and an anti-bending layer is arranged on the side of the high-strength layer away from the fixing rod.

[0004] Although the torque wrench has a good anti-bending effect on the fixing rod by providing a high-strength layer during use, it only improves the anti-bending effect by changing the material of the fixing rod, the anti-bending effect is average, and the wrench cannot be extended and retracted, so its application range is small. Utility Model Content

[0005] The purpose of this application is to provide a torque wrench with good anti-bending effect in response to the above-mentioned technical problems. The torque wrench is provided with an anti-bending component to improve the anti-bending effect and has a telescopic function. The anti-bending effect of the wrench is still strong after telescopic.

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

[0007] A telescopic rod, comprising a fixed rod and a movable rod;

[0008] The first anti-bending component comprises an anti-bending shell and a balancing rod;

[0009] A second anti-bending component, comprising an anti-bending block;

[0010] A wrench head connected to the movable rod;

[0011] An anti-slip sleeve connected to the fixing rod;

[0012] Wherein, the fixing rod is provided with a limiting groove, the anti-bending housing and the fixing rod are rotatably connected via the limiting groove, and the anti-bending block is placed at the connection between the fixing rod and the movable rod.

[0013] In the present technical scheme, the rod body of the wrench body is set as a telescopic rod, and the first anti-bending component is installed on the fixed rod, and a limiting groove is set on the fixed rod. The anti-bending shell in the first anti-bending component can rotate on the fixed rod through the limiting groove. Balance rods are also installed on both sides of the anti-bending shell. The anti-bending shell is rotated to adjust the surface formed by the two balance rods to be parallel to the working surface of the wrench head. When the torque wrench in the shortened state is working, the bending torque applied to the fixed rod is balanced by the two balance rods to reduce the influence of the bending torque on the fixed rod, avoid deformation of the rod body, and affect the use of the wrench. When the torque wrench in the extended state is working, the bending torque is mainly concentrated on the connection between the fixed rod and the movable rod. A second anti-bending component with an anti-bending block is installed at the connection between the fixed rod and the movable rod. The anti-bending block can reduce the influence of the bending torque on the connection between the fixed rod and the movable rod, avoid damage to the torque wrench, thereby extending the service life. An anti-slip sleeve is also connected to the fixed rod to prevent the handle of the wrench body from slipping out of the hand during use, and facilitate the staff to apply force, thereby improving work efficiency.

[0014] Furthermore, the first bending-resistant component comprises:

[0015] A reinforcing rib connected to the anti-bending shell and the balancing rod;

[0016] Tighten the twist ring;

[0017] A fastening sheet, which is threadedly matched with the fastening torsion ring;

[0018] Wherein, the anti-bending shell and the fixing rod are tightly matched through a fastening torsion ring and a fastening sheet.

[0019] In the present technical solution, by arranging reinforcing ribs on the first anti-bending component, the balance rod is connected to the anti-bending shell through the reinforcing ribs, so that the connection between the balance rod and the anti-bending shell is more stable to improve the anti-bending effect. After the movable rod is extended and retracted on the fixed rod, the movable rod and the fixed rod rotate. At this time, it is necessary to adjust the position of the balance rod, loosen the fastening torsion ring to loosen the fastening plate on the anti-bending shell and the fixed rod, rotate the anti-bending shell to a suitable position, and then tighten the fastening torsion ring to make the fastening plate on the anti-bending shell and the fixed rod fit tightly, so as to improve the flexibility of the first anti-bending component and expand the application range of the wrench body.

[0020] Furthermore, the second bending-resistant component comprises:

[0021] A first groove, which is disposed in the anti-bending block;

[0022] a second groove disposed in the anti-bending block;

[0023] A spring connected to the anti-bending block and the fixing rod;

[0024] Steel ball;

[0025] Among them, the fixed rod is provided with a rubber ring and a through hole, the movable rod is provided with a round hole, the steel ball cooperates with the through hole and the round hole, when the steel ball is placed in the first groove, the fixed rod and the movable rod are fixed, when the steel ball is placed in the second groove, the fixed rod and the movable rod are loose.

[0026] In the present technical scheme, a first groove and a second groove are set in the anti-bending block in the second anti-bending component, the anti-bending block is connected to the fixed rod through a spring, a through hole matching the steel ball is set on the fixed rod, and a round hole matching the steel ball is set on the movable rod. When telescoping, the anti-bending block is pressed down, and the steel ball moves from the first groove to the second groove. At this time, the fixed rod and the movable rod are loose. After the movable rod is rotated and moved to a suitable position, the anti-bending block is released, and the anti-bending block is reset by the spring. The steel ball moves from the second groove to the first groove. At this time, the fixed rod and the movable rod are fixed, and a rubber ring is set on the fixed rod to increase the friction between it and the movable rod, so that the telescopic rod can be more stable after telescoping. The anti-bending block can better balance the bending and torsion force at the connection between the fixed rod and the movable rod, thereby improving the anti-bending effect of the wrench body.

[0027] Furthermore, the inner wall of the movable rod is provided with reinforcing ribs;

[0028] Wherein, the reinforcing rib is welded to the edge of the inner wall of the movable rod.

[0029] In the present technical solution, reinforcing ribs are welded at the edge of the inner wall of the movable rod, and the reinforcing ribs are arranged parallel to the working surface of the wrench head. When the movable rod is affected by bending and torsion, the reinforcing ribs can balance the bending and torsion. The reinforcing ribs also improve the structural strength of the movable rod and reduce the influence of bending and torsion on the movable rod, thereby improving the bending resistance of the wrench body.

[0030] Furthermore, the first bending-resistant component also includes:

[0031] A photosensitive element connected to the balance bar;

[0032] buzzer;

[0033] Wherein, the wrench head is provided with an infrared sensor, the photosensitive element cooperates with the infrared sensor, and the buzzer is connected with the infrared sensor.

[0034] In the present technical solution, a photosensitive element is connected to the balance bar and infrared sensors are installed on both sides of the working surface of the wrench. When the photosensitive elements on the two balance bars are aligned with the infrared sensors on both sides of the wrench, the photosensitive elements and the infrared sensors cooperate with each other. At this time, the surface formed by the two balance bars is parallel to the working surface of the wrench. The infrared sensor triggers a buzzer alarm to remind the staff that the first anti-bending component has been adjusted into place and can be tightened, thereby facilitating the use of the torque wrench.

[0035] Furthermore, the telescopic rod is provided with a titanium alloy layer;

[0036] Wherein, the titanium alloy layer is bonded to the fixed rod, and the titanium alloy layer is bonded to the movable rod.

[0037] In this technical solution, a titanium alloy layer is bonded to the fixed rod and the movable rod. The titanium alloy layer has a high hardness, making it difficult to fall off or be damaged from the telescopic rod. The titanium alloy layer also enhances the corrosion resistance and toughness of the telescopic rod, thereby improving the service life and bending resistance of the wrench body.

[0038] The beneficial effects of this application are:

[0039] 1. Rotate the anti-bending shell on the fixed rod, adjust the surface formed by the balance rods on both sides of the anti-bending shell to be parallel to the working surface of the wrench head, and balance the bending and torsion force applied to the fixed rod through the two balance rods. The anti-bending block is installed at the connection between the fixed rod and the movable rod to reduce the influence of the bending and torsion force on this part, and reinforcing ribs are welded at the edge of the inner wall of the movable rod. The reinforcing ribs can enhance the anti-bending effect of the movable rod. Combined with the above technical features, the anti-bending effect of the wrench body can be enhanced.

[0040] 2. After the movable rod is extended and retracted on the fixed rod, it is necessary to adjust the position of the balance rod, loosen the tightening twist ring to loosen the fastening plate on the anti-bending shell and the fixed rod, rotate the anti-bending shell to a suitable position, and then tighten the tightening twist ring to make the fastening plate on the anti-bending shell and the fixed rod fit tightly, thereby improving the flexibility of the anti-bending component and expanding the application range of the wrench body.

[0041] 3. When telescoping, press down the anti-bending block, and the steel ball moves from the first groove to the second groove. At this time, the fixed rod and the movable rod are loose. After adjusting the movable rod to a suitable position, release the anti-bending block, and the anti-bending block will be reset. The steel ball moves from the second groove to the first groove. At this time, the fixed rod and the movable rod are fixed. The rubber ring makes the telescopic rod more stable after telescoping, so as to improve the balancing effect of the anti-bending block on bending torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic structural diagram of a torque wrench with good anti-bending effect in this application;

[0043] Figure 2 This is a half-section view of the wrench;

[0044] Figure 3 for Figure 2 A magnified view of point A;

[0045] Figure 4 for Figure 2 Enlarged view of point B;

[0046] Figure 5 It is a structural schematic diagram of the cross section of the movable rod;

[0047] The reference numerals in the figure are: 100, wrench body; 200, telescopic rod; 210, fixed rod; 211, limiting groove; 212, rubber ring; 213, through hole; 220, movable rod; 221, round hole; 222, reinforcing rib; 230, titanium alloy layer; 300, first anti-bending component; 310, anti-bending shell; 320, balance rod; 330, reinforcing rib; 340, fastening torsion ring; 350, fastening plate; 360, photosensitive element; 370, buzzer; 400, second anti-bending component; 410, anti-bending block; 420, first groove; 430, second groove; 440, spring; 450, steel ball; 500, wrench head; 510, infrared sensor; 600, anti-slip sleeve. DETAILED DESCRIPTION

[0048] 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.

[0049] 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.

[0050] 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.

[0051] Embodiment 1:

[0052] like Figure 1-5 As shown, the embodiment of the present application provides a torque wrench with good bending resistance, including a wrench body 100, wherein the wrench body 100 includes:

[0053] The telescopic rod 200 includes a fixed rod 210 and a movable rod 220;

[0054] The first anti-bending assembly 300 includes an anti-bending housing 310 and a balancing rod 320;

[0055] The second anti-bending component 400 includes an anti-bending block 410;

[0056] A wrench 500 connected to the movable rod 220;

[0057] An anti-slip sleeve 600 connected to the fixing rod 210;

[0058] The fixing rod 210 is provided with a limiting groove 211 , the anti-bending housing 310 is rotatably connected to the fixing rod 210 via the limiting groove 211 , and the anti-bending block 410 is disposed at the connection between the fixing rod 210 and the movable rod 220 .

[0059] The rod body of the wrench body 100 is set as a telescopic rod 200, and the first anti-bending component 300 is installed on the fixed rod 210, and a limiting groove 211 is set on the fixed rod 210. The anti-bending shell 310 in the first anti-bending component 300 can rotate on the fixed rod 210 through the limiting groove 211. Balance rods 320 are also installed on both sides of the anti-bending shell 310. The anti-bending shell 310 is rotated to adjust the surface formed by the two balance rods 320 to be parallel to the working surface of the wrench head 500. When the torque wrench in the shortened state is working, the bending torque applied to the fixed rod 210 is balanced by the two balance rods 320 to reduce the bending torque on the fixed rod. The influence of the rod 210 is avoided to prevent the rod body from being deformed and affecting the use of the wrench. When the torque wrench in the extended state is working, the bending torque is mainly concentrated on the connection between the fixed rod 210 and the movable rod 220. A second anti-bending component 400 with an anti-bending block 410 is installed at the connection between the fixed rod 210 and the movable rod 220. The anti-bending block 410 can reduce the influence of the bending torque on the connection between the fixed rod 210 and the movable rod 220, avoid damage to the torque wrench, and thus extend its service life. An anti-slip sleeve 600 is also connected to the fixed rod 210, which can prevent the handle of the wrench body 100 from slipping out of the hand during use, and facilitate the staff to apply force, thereby improving work efficiency.

[0060] Furthermore, the first bending-resistant component 300 includes:

[0061] A reinforcing rib 330 connected to the anti-bending housing 310 and the balancing rod 320;

[0062] Tightening the torsion ring 340;

[0063] A fastening sheet 350, which is threadedly engaged with the fastening torsion ring 340;

[0064] The anti-bending housing 310 and the fixing rod 210 are tightly matched via a fastening torsion ring 340 and a fastening sheet 350 .

[0065] By setting reinforcing ribs 330 on the first anti-bending component 300, the balance rod 320 is connected to the anti-bending shell 310 through the reinforcing ribs 330, so that the connection between the balance rod 320 and the anti-bending shell 310 is more stable to improve the anti-bending effect. After the movable rod 220 is extended and retracted on the fixed rod 210, the movable rod 220 and the fixed rod 210 rotate. At this time, it is necessary to adjust the position of the balance rod 320, loosen the tightening torsion ring 340, so that the fastening plate 350 on the anti-bending shell 310 and the fixed rod 210 are loose, rotate the anti-bending shell 310 to a suitable position, and then tighten the tightening torsion ring 340 to make the fastening plate 350 on the anti-bending shell 310 and the fixed rod 210 fit tightly, so as to improve the flexibility of the first anti-bending component 300 and expand the application range of the wrench body 100.

[0066] Furthermore, the second bending-resistant component 400 includes:

[0067] A first groove 420 disposed in the anti-bending block 410;

[0068] A second groove 430 disposed in the anti-bending block 410;

[0069] A spring 440 connected to the anti-bending block 410 and the fixing rod 210;

[0070] Steel ball 450;

[0071] Among them, the fixed rod 210 is provided with a rubber ring 212 and a through hole 213, the movable rod 220 is provided with a round hole 221, the steel ball 450 is matched with the through hole 213 and the round hole 221, when the steel ball 450 is placed in the first groove 420, the fixed rod 210 and the movable rod 220 are fixed, when the steel ball 450 is placed in the second groove 430, the fixed rod 210 and the movable rod 220 are loose.

[0072] By setting a first groove 420 and a second groove 430 in the anti-bending block 410 in the second anti-bending component 400, the anti-bending block 410 is connected to the fixed rod 210 through the spring 440, the fixed rod 210 is provided with a through hole 213 that matches with the steel ball 450, and the movable rod 220 is provided with a round hole 221 that matches with the steel ball 450. When telescoping, the anti-bending block 410 is pressed down, and the steel ball 450 moves from the first groove 420 to the second groove 430. At this time, the fixed rod 210 and the movable rod 220 are loosened, and the movable rod 220 is moved. After the anti-bending block 410 is rotated and moved to a suitable position, the anti-bending block 410 is released and reset by the spring 440. The steel ball 450 moves from the second groove 430 to the first groove 420. At this time, the fixed rod 210 and the movable rod 220 are fixed, and a rubber ring 212 is provided on the fixed rod 210 to increase the friction between it and the movable rod 220, so that the telescopic rod 200 can be more stable after telescopic operation. The anti-bending block 410 can better balance the bending torsion at the connection between the fixed rod 210 and the movable rod 220, thereby improving the anti-bending effect of the wrench body 100.

[0073] Furthermore, the inner wall of the movable rod 220 is provided with a reinforcing rib 222;

[0074] The reinforcing rib 222 is welded to the edge of the inner wall of the movable rod 220 .

[0075] By welding reinforcing ribs 222 at the edge of the inner wall of the movable rod 220, the reinforcing ribs 222 are arranged parallel to the working surface of the wrench head 500, so that when the movable rod 220 is affected by bending torsion, the reinforcing ribs 222 can balance the bending torsion, and the reinforcing ribs 222 improve the structural strength of the movable rod 220, reduce the influence of bending torsion on the movable rod 220, so as to improve the bending resistance of the wrench body 100.

[0076] Embodiment 2:

[0077] like Figure 1-5 As shown, the embodiment of the present application provides a torque wrench with good anti-bending effect, which, in addition to the technical solutions of the above embodiments, also has the following technical features. The first anti-bending component 300 also includes:

[0078] A photosensitive element 360 connected to the balance bar 320;

[0079] Buzzer 370;

[0080] The wrench head 500 is provided with an infrared sensor 510 , the photosensitive element 360 cooperates with the infrared sensor 510 , and the buzzer 370 is connected to the infrared sensor 510 .

[0081] By connecting a photosensitive element 360 to the balance bar 320 and installing infrared sensors 510 on both sides of the working surface of the wrench head 500, when the photosensitive elements 360 on the two balance bars 320 are aligned with the infrared sensors 510 on both sides of the wrench head 500, the photosensitive elements 360 and the infrared sensors 510 cooperate with each other. At this time, the surface formed by the two balance bars 320 is parallel to the working surface of the wrench head 500, and the infrared sensor 510 triggers the buzzer 370 to alarm, so as to remind the staff that the first anti-bending component 300 has been adjusted into place and can be tightened, thereby facilitating the use of the torque wrench.

[0082] Furthermore, the telescopic rod 200 is provided with a titanium alloy layer 230;

[0083] The titanium alloy layer 230 is bonded to the fixed rod 210 , and the titanium alloy layer 230 is bonded to the movable rod 220 .

[0084] By bonding the titanium alloy layer 230 to the fixed rod 210 and the movable rod 220, the titanium alloy layer 230 has a high hardness, making it difficult to fall off and be damaged from the telescopic rod 200, and the titanium alloy layer 230 enhances the corrosion resistance and toughness of the telescopic rod 200, that is, improves the service life and bending resistance of the wrench body 100.

[0085] 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.

[0086] 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 good bending resistance, comprising a wrench body (100), characterized in that: The wrench body (100) comprises: The telescopic rod (200) comprises a fixed rod (210) and a movable rod (220); A first anti-bending component (300) comprises an anti-bending shell (310) and a balancing rod (320); A second anti-bending component (400) includes an anti-bending block (410); A wrench (500) connected to the movable rod (220); An anti-slip sleeve (600) connected to the fixing rod (210); The fixed rod (210) is provided with a limiting groove (211), the anti-bending housing (310) and the fixed rod (210) are rotatably connected via the limiting groove (211), and the anti-bending block (410) is disposed at the connection between the fixed rod (210) and the movable rod (220).

2. A torque wrench with good bending resistance according to claim 1, characterized in that: The first bending-resistant component (300) comprises: A reinforcing rib (330) connected to the anti-bending housing (310) and the balancing rod (320); Tightening the torsion ring (340); A fastening sheet (350) threadably engaged with the fastening torsion ring (340); The anti-bending housing (310) and the fixing rod (210) are tightly matched via a fastening torsion ring (340) and a fastening sheet (350).

3. A torque wrench with good bending resistance according to claim 2, characterized in that: The second bending-resistant component (400) comprises: A first groove (420) disposed in the anti-bending block (410); A second groove (430) disposed in the anti-bending block (410); A spring (440) connected to the anti-bending block (410) and the fixing rod (210); Steel ball (450); The fixed rod (210) is provided with a rubber ring (212) and a through hole (213), the movable rod (220) is provided with a round hole (221), the steel ball (450) is matched with the through hole (213) and the round hole (221), when the steel ball (450) is placed in the first groove (420), the fixed rod (210) and the movable rod (220) are fixed, and when the steel ball (450) is placed in the second groove (430), the fixed rod (210) and the movable rod (220) are loosened.

4. A torque wrench with good bending resistance according to claim 3, characterized in that: The inner wall of the movable rod (220) is provided with reinforcing ribs (222); Wherein, the reinforcing rib (222) is welded to the edge of the inner wall of the movable rod (220).

5. A torque wrench with good bending resistance according to claim 4, characterized in that: The first bending-resistant component (300) further comprises: A photosensitive element (360) connected to the balance bar (320); Buzzer(370); The wrench head (500) is provided with an infrared sensor (510), the photosensitive element (360) cooperates with the infrared sensor (510), and the buzzer (370) is connected to the infrared sensor (510).

6. A torque wrench with good bending resistance according to claim 5, characterized in that: The telescopic rod (200) is provided with a titanium alloy layer (230); The titanium alloy layer (230) is bonded to the fixed rod (210), and the titanium alloy layer (230) is bonded to the movable rod (220).

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