Torque wrench with locking function

Abstract

The utility model discloses a torque wrench with a locking function, which relates to the field of wrench tools and comprises a wrench body and a wrench, one end of the wrench body is movably connected with the wrench, a ratchet disc is mounted at the bottom of the wrench, a hole is formed in the wrench, a fixing component is mounted in the hole, and the ratchet disc is mounted on the fixing component. The fixing assembly comprises a movable block installed in the hole, a pressing block is installed in the fixing assembly, and the bottom of the pressing block is connected with a limiting assembly. The problem that a torque wrench is inconvenient to use is solved, when bolts or nuts of different specifications need to be screwed, the pressing block is pressed downwards, the limiting assembly is aligned with the bolts, then the pressing block is loosened, the strong spring rebounds to push the pressing block to move upwards, the limiting assembly is driven to contract, and the limiting block is tightly attached to the bolts; the traditional sleeve does not need to be replaced, so that the torque wrench gets rid of limitation of accessories, and the torque wrench is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of wrench tools, in particular to a torque wrench with a locking function. Background Art

[0002] As a very common tool, wrenches can be classified according to different structures, functions and materials. Classified by structure, they can be divided into fixed wrenches, adjustable wrenches, socket wrenches, hexagon socket wrenches, torque wrenches and other special wrenches; among them, the torque wrench, also known as a torque wrench, a moment wrench or a torque adjustable wrench, is a kind of wrench used to tighten or disassemble bolts and nuts according to a pre-determined torque. It is designed based on the bending principle of a beam, the bending principle of a torsion bar and the compression principle of a spiral spring, and can measure the torque acting on the nut or bolt.

[0003] When using a torque wrench, it is necessary to first determine the required torque value, select a suitable torque wrench, then loosen the locking ring on the wrench handle, rotate the handle to adjust the torque value to the preset value, lock the locking ring, then connect the square tenon of the wrench to the socket, and then slowly rotate the wrench handle to complete the connection of the bolt and the nut.

[0004] The existing torque wrenches are very ingeniously designed, but they require many accessories. Different bolts and nuts need to be matched with different sizes of sockets. If the scattered accessories are lost, the torque wrench cannot be used, which is very inconvenient. Content of the Utility Model

[0005] Based on this, the purpose of the utility model is to provide a torque wrench with a locking function to solve the technical problem of inconvenient use of the torque wrench.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A torque wrench with a locking function, including a wrench body and a wrench. One end of the wrench body is movably connected to the wrench. A ratchet disc is installed at the bottom of the wrench. A hole is opened inside the wrench, and a fixing component is installed inside the hole. A pressing block is installed inside the fixing component, and a limiting component is connected to the bottom of the pressing block.

[0007] By adopting the above technical solution, the problem of inconvenient use of the torque wrench is solved. When it is necessary to turn bolts or nuts of different specifications, only need to press the pressing block downward, align the limiting component with the bolt, then release the pressing block, and the strong spring rebounds to push the pressing block upward, driving the limiting component to contract, so that the limiting block is close to the bolt, and then rotate the wrench body to turn the bolt, without the need to replace the traditional socket, making the torque wrench get rid of the limitation of accessories and more convenient to use.

[0008] The utility model is further set as follows: The inner wall of the hole is connected with a ratchet disc, and one side of the ratchet disc is connected with the fixing component.

[0009] By adopting the above technical solution, the fixing component will rotate synchronously with the connecting ratchet disc and will not move up and down, left or right.

[0010] The present utility model is further configured such that the fixing component includes a movable block installed inside the hole, and a plurality of fixing rods are fixedly connected to the bottom of the movable block, and one end of the plurality of fixing rods is fixedly connected to a fixing plate.

[0011] By adopting the above technical solution, the fixing plate connected by the fixing rods can provide an installation condition for the strong spring to ensure that the pressing block will not fall off.

[0012] The present utility model is further configured such that the limiting component includes a plurality of connecting rods movably connected to the bottom of the pressing block, and one end of the plurality of connecting rods is movably connected to a limiting block.

[0013] By adopting the above technical solution, when the pressing block is pressed downward, the pressing block will squeeze the connecting rods to open outward, so that a bolt can be inserted between the plurality of limiting blocks.

[0014] The present utility model is further configured such that one end of the pressing block is connected to a strong spring, and the other end of the spring is connected above the fixing plate.

[0015] By adopting the above technical solution, when the pressing block is pressed downward, it can squeeze the strong spring. Since one end of the strong spring is fixed on the fixing plate, when the pressing force on the pressing block is removed, the strong spring will rebound and push the pressing block upward.

[0016] The present utility model is further configured such that the plurality of limiting plates can form a regular hexagon, and an anti-slip area is provided inside the limiting plates.

[0017] By adopting the above technical solution, the regular hexagon formed by the plurality of limiting blocks fits the shape of the bolt, and combined with the anti-slip area, the bolt can be prevented from falling off when being screwed.

[0018] The present utility model is further configured such that the fixing plate is in a cylindrical shape, and the radius of the fixing plate is larger than the radius of the pressing block.

[0019] By adopting the above technical solution, the area of the fixing plate larger than the pressing block can be used to install the fixing rods, so that the fixing rods are directly connected between the movable block and the fixing plate.

[0020] In summary, the present utility model mainly has the following beneficial effects:

[0021] The utility model solves the problem of inconvenient use of a torque wrench by providing a wrench, a hole, a fixing component, a pressing block, a strong spring and a limiting component. When it is necessary to screw bolts or nuts of different specifications, only need to press the pressing block downward, align the limiting component with the bolt, then release the pressing block, the strong spring rebounds and pushes the pressing block to move upward, driving the limiting component to contract, so that the limiting block tightly adheres to the bolt, and then rotate the wrench body to screw the bolt, without the need to replace the traditional socket, making the torque wrench free from the restriction of accessories and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view of the torque wrench of the utility model;

[0023] Figure 2 is a diagram showing the positional relationship between the wrench and the ratchet disc of the utility model;

[0024] Figure 3 is a working schematic diagram of pressing the pressing block of the utility model;

[0025] Figure 4 is a working schematic diagram of the pressing block bouncing up of the utility model;

[0026] Figure 5 is a working schematic diagram of the limiting component being opened of the utility model;

[0027] Figure 6 is a working schematic diagram of the limiting component contracting of the utility model;

[0028] Figure 7 is an internal structure diagram of the fixing component and the limiting component of the utility model.

[0029] In the figure: 1, wrench body; 2, wrench; 21, hole; 3, ratchet disc; 4, fixing component; 41, movable block; 42, fixing rod; 43, fixing plate; 5, pressing block; 6, strong spring; 7, limiting component; 71, limiting block; 72, connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0031] The embodiments of the present utility model will be described below according to its overall structure.

[0032] A torque wrench with a locking function, as Figure 1 - Figure 7As shown, it includes a wrench body 1 and a wrench 2. One end of the wrench body 1 is movably connected to the wrench 2.

[0033] Specifically, a ratchet disc 3 is installed at the bottom of the wrench 2. A hole 21 is opened inside the wrench 2, and a fixing component 4 is installed inside the hole 21. A pressing block 5 is installed inside the fixing component 4. When the pressing block 5 is pressed downward, the bottom of the pressing block 5 is connected to a limiting component 7. One section of the connecting rod 72 bearing-connected to the bottom of the pressing block 5 also moves downward. As a result, the other end of the connecting rod 72 moves outward, and the limiting block 71 connected to one section of the connecting rod 72 also moves outward. Thus, the space between multiple groups of limiting blocks 71 becomes larger.

[0034] Please refer to Figure 1 and Figure 2 , the inner wall of the hole 21 is connected to the ratchet disc 3, and one side of the ratchet disc 3 is connected to the fixing component 4. The fixing component 4 will rotate synchronously with the connected ratchet disc 3 and will not move up, down, left, or right.

[0035] Please refer to Figure 5 - Figure 7 , the fixing component 4 includes a movable block 41 installed inside the hole 21, and multiple fixing rods 42 are fixedly connected to the bottom of the movable block 41. One end of multiple fixing rods 42 is fixedly connected to a fixing plate 43. The fixing plate 43 connected by the fixing rods 42 can provide an installation condition for the strong spring 6 to ensure that the pressing block 5 will not fall off.

[0036] Please refer to Figure 5 - Figure 7 , the limiting component 7 includes multiple connecting rods 72 movably connected to the bottom of the pressing block 5. One end of multiple connecting rods 72 is movably connected to a limiting block 71. When the pressing block 5 is pressed downward, the pressing block 5 will squeeze the connecting rods 72 to open outward, so that a bolt can be inserted between multiple groups of limiting blocks 71.

[0037] Please refer to Figure 5 - Figure 7 , one section of the pressing block 5 is connected to a strong spring 6. The other end of the strong spring 6 is connected above the fixing plate 43. When the pressing block 5 is pressed downward, it can squeeze the strong spring 6. Since one end of the strong spring 6 is fixed on the fixing plate 43, when the pressing block 5 loses the downward pressing force, the strong spring 6 will rebound and bounce the pressing block 5 upward.

[0038] Please refer to Figure 2 、 Figure 5 - Figure 7 , multiple groups of limiting blocks 71 can form a regular hexagon, and an anti-slip area is provided on the inner side of the limiting blocks 71. The regular hexagon formed by multiple groups of limiting blocks 71 fits the shape of the bolt. Combining with the anti-slip area can prevent the bolt from falling off when being turned.

[0039] Please refer to Figure 7, the fixing plate 43 is cylindrical, and the radius of the fixing plate 43 is larger than the radius of the pressing block 5. The area where the fixing plate 43 is larger than the pressing block 5 can be used to install the fixing rod 42, so that the fixing rod 42 is directly connected between the movable block 41 and the fixing plate 43.

[0040] The working principle of the present utility model is as follows: When it is necessary to turn the bolt, adjust the torque of the wrench body 1 to a predetermined value, then press the pressing block 5 at the position of the wrench 2 downward. At the same time, the movable block 41 is connected to the ratchet disc 3, so that the movable block 41 can only rotate along with the ratchet disc 3, but cannot move left and right or up and down.

[0041] At this time, when the pressing block 5 is pressed downward, the pressing block 5 will compress the strong spring 6. At the same time, one end of the connecting rod 72 connected to the bearing at the bottom of the pressing block 5 also moves downward, so that the other end of the connecting rod 72 moves outward, and the limiting block 71 connected to one end of the connecting rod 72 also moves outward. Thus, the space between multiple groups of limiting blocks 71 becomes larger. Then place the bolt between multiple groups of limiting blocks 71, and then release the pressing block 5. The pressing block 5 loses pressure, so the strong spring 6 also loses pressure. Since the position of the movable block 41 is fixed, and the fixing rod 42 and the fixing plate 43 are also fixed, and the strong spring 6 is installed above the fixing plate 43, so the strong spring 6 rebounds upward, and will also push the pressing block 5 upward. The pressing block 5 drives one end of the connecting rod 72 to move upward, so that the limiting block 71 contracts inward, making the inner wall of the limiting block 71 fit the bolt, and then rotate the wrench body 1 to turn the bolt.

[0042] When it is necessary to loosen the bolt, press the pressing block 5 downward to open the limiting block 71 outward, so that the bolt disengages from the inner wall of the limiting block 71. Thus, the use of the torque wrench is completed.

[0043] Although the embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model, and they are not limitations to the utility model. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations without creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A torque wrench with a locking function, comprising a wrench body (1) and a wrench (2), wherein one end of the wrench body (1) is movably connected to the wrench (2), and characterized in that: A ratchet disc (3) is installed at the bottom of the wrench (2), a hole (21) is provided inside the wrench (2), a fixing component (4) is installed inside the hole (21), a pressing block (5) is installed inside the fixing component (4), and a limiting component (7) is connected to the bottom of the pressing block (5).

2. A torque wrench with locking function according to claim 1, characterized in that: A ratchet disc (3) is connected to the inner wall of the hole (21), and one side of the ratchet disc (3) is connected to the fixing assembly (4).

3. The torque wrench with locking function according to claim 1, characterized in that: The fixing assembly (4) comprises a movable block (41) installed inside the hole (21), and a plurality of sets of fixing rods (42) are fixedly connected to the bottom of the movable block (41), and a fixing plate (43) is fixedly connected to one end of the plurality of sets of fixing rods (42).

4. The torque wrench with locking function according to claim 1, characterized in that: The limiting assembly (7) comprises a plurality of groups of connecting rods (72) movably connected to the bottom of the pressing block (5), and one end of the plurality of groups of connecting rods (72) is movably connected to the limiting block (71).

5. The torque wrench with locking function according to claim 1, characterized in that: One end of the pressing block (5) is connected to a strong spring (6), and the other end of the strong spring (6) is connected above the fixing plate (43).

6. The torque wrench with locking function according to claim 4, characterized in that: A plurality of groups of the limit blocks (71) can form a regular hexagon, and an anti-slip area is provided inside the limit blocks (71).

7. The torque wrench with locking function according to claim 3, characterized in that: The fixing plate (43) is cylindrical, and the radius of the fixing plate (43) is larger than the radius of the pressing block (5).

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