Torque wrench with calibration function

Abstract

The utility model discloses a torque wrench with a calibration function, which comprises a torque wrench, a torque sensor is arranged on one side of the torque wrench, a clamping groove is arranged on the torque sensor, and a base is arranged on the lower side of the torque sensor. A rotating block is rotatably arranged on the outer side of the connecting shaft, a matching block is arranged at the bottom of the rotating block, four hinge rods are rotatably arranged in the matching block, a sliding hole is formed in the matching block, an inserting hole is formed in the connecting shaft, and an inserting rod is slidably arranged in the sliding hole. The torque wrench can be conveniently stored by a person, can be conveniently unfolded and used at any time, is very convenient, and solves the problem that the torque wrench can be calibrated only by using a large-scale torque measuring instrument in the prior art.

Description

Technical Field

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

[0002] When calibrating a torque wrench, external instruments are required to verify the correct torque setting. Existing torque wrenches are typically calibrated using external torque measuring instruments. However, these instruments are bulky and heavy, making them difficult to position freely. Consequently, they cannot be placed within the torque wrench's operating area to ensure timely torque calibration. This has led to extensive research into this issue. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a torque wrench with a calibration function, which can solve the above-mentioned problems in the existing technology.

[0004] The utility model is realized through the following technical solutions: the utility model is a torque wrench with a calibration function, comprising a torque wrench, a torque sensor is provided on one side of the torque wrench, a card slot is provided on the torque sensor, a base is provided on the lower side of the torque sensor, and the utility model is characterized in that a connecting shaft is provided in the base, a rotating block is provided for rotation on the outer side of the connecting shaft, a matching block is provided at the bottom of the rotating block, and four hinged rods are provided for rotation in the matching block.

[0005] According to a further technical solution, a buckle is provided at the end of the hinged rod.

[0006] According to a further technical solution, a sliding hole is provided in the matching block, a plug hole is provided in the connecting shaft, and a plug rod is slidably provided in the sliding hole.

[0007] According to a further technical solution, after the sliding hole is aligned with the plug-in hole, the plug-in rod slides out of the sliding hole and is plugged into the plug-in hole.

[0008] According to a further technical solution, a limiting plate is provided at the end of the plug rod, a sliding rod is provided on one side of the limiting plate, the sliding rod slides through the bottom of the matching block, and a compression spring is elastically provided between the limiting plate and the bottom of the matching block.

[0009] According to a further technical solution, a connecting block is provided at the bottom of the sliding rod, a plurality of rotating rods are hingedly provided in the connecting block, and the rotating rods are hingedly provided with the hinged rods.

[0010] The beneficial effects of the present invention are as follows: 1. A base is provided at the bottom of the torque sensor, a rotating block is hingedly provided in the base through a connecting shaft, and four swingable hinged rods are provided in the rotating block. The hinged rods are connected to the connecting block through the rotating rods. After the hinged rods are swung downward, the connecting block can be disengaged from the plug-in hole. Then, the rotating block is rotated so that the plug-in rods are fixed against the outer surface of the connecting shaft under the elastic action of the compression spring to keep the hinged rods in a closed state. It can be seen that when the device is unfolded, a relatively firm unfolding structure can be provided, which is convenient for fixing the entire device on the work surface. In the folded state, it can be folded, which is convenient for people to store and to unfold and use at any time. It is very convenient and avoids the problem in the prior art that the torque wrench can only be calibrated using a large torque measuring instrument. The display screen connected to the torque sensor can also be a laptop computer, which increases convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] For ease of explanation, the present invention is described in detail with reference to the following specific embodiments and accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the overall structure of a torque wrench with a calibration function according to the present invention;

[0013] Figure 2 for Figure 1 Schematic diagram of part of the structure of the equipment;

[0014] Figure 3 for Figure 2 Schematic diagram at A in the middle;

[0015] Figure 4 for Figure 2 Schematic diagram of the cross-section structure of the equipment;

[0016] Figure 5 for Figure 4 Schematic diagram at B in the middle;

[0017] In the figure, the torque wrench 11, the slot 12, the torque sensor 13, the base 14, the hinged rod 15, the buckle 16, the rotating block 17, the rotating rod 21, the matching block 22, the connecting block 23, the compression spring 24, the plug hole 31, the connecting shaft 32, the plug rod 33, the sliding hole 34, and the limit plate 35. DETAILED DESCRIPTION

[0018] like Figure 1-Figure 5 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are the same as Figure 1The up, down, left, right, front and back directions of the projection relationship are consistent. The utility model is a torque wrench with a calibration function, including a torque wrench 11. A torque sensor 13 is provided on one side of the torque wrench 11. A card slot 12 is provided on the torque sensor 13. A base 14 is provided on the lower side of the torque sensor 13. The torque sensor 13 is a prior art. The card slot 12 can be inserted into a rectangular block. The rectangular block has a threaded hole. The threaded hole is threadedly connected with a hexagonal bolt. After the working end of the torque wrench 11 is connected to the hexagonal internal threaded sleeve, the hexagonal internal threaded sleeve is clamped to the outer surface of the hexagonal bolt, and then turned to the torque wrench 11. After the hexagonal bolt is rotated, it is threadedly connected to the threaded hole in the rectangular block. During this process, the torque sensor 13 needs to be connected to a display screen in the external space to display the torque value in real time. By comparing the value displayed on the display screen with the torque degree set on the torque wrench 11, it can be known whether it is accurate.

[0019] Advantageously, a connecting shaft 32 is provided in the base 14, a rotating block 17 is provided for rotating outside the connecting shaft 32, a matching block 22 is provided at the bottom of the rotating block 17, four hinged rods 15 are provided for rotating inside the matching block 22, and a buckle 16 is provided at the end of the hinged rod 15. After the hinged rod 15 and the buckle 16 are set on the work surface, a fixing screw is passed through the buckle 16 to fix the position of the hinged rod 15.

[0020] Advantageously, a sliding hole 34 is provided in the mating block 22, a plug-in hole 31 is provided in the connecting shaft 32, and a plug-in rod 33 is provided to slide in the sliding hole 34. After the sliding hole 34 is opposite to the plug-in hole 31, the plug-in rod 33 slides out of the sliding hole 34 and is plugged into the plug-in hole 31, so that the mating block 22 remains in a vertical state.

[0021] Advantageously, a limit plate 35 is provided at the end of the plug rod 33, a slide rod 19 is provided on one side of the limit plate 35, the slide rod 19 slides through the bottom of the mating block 22, and a compression spring 24 is elastically provided between the limit plate 35 and the bottom of the mating block 22.

[0022] Advantageously, a connecting block 23 is provided at the bottom of the sliding rod 19 , and a plurality of rotating rods 21 are hingedly provided in the connecting block 23 , and the rotating rods 21 are hingedly provided with the hinge rods 15 .

[0023] By allowing the hinged rod 15 to be unfolded relative to the rotating block 17 , after the buckle 16 at the end of the hinged rod 15 is fixed to the work surface, it is convenient for personnel to perform the torque calibration function on the torque wrench 11 .

[0024] The work surface can be a wooden work surface, which is convenient for installing screws in the buckles 16.

[0025] To fold the base 14, hinged rod 15, and hinged member 15, the screw in the buckle 16 is first turned to release the hinged rod 15 from the work surface. The hinged rod 15 is then swung downward toward the mating block 22 to close. Since the rotating rod 21 is hingedly connected to the connecting block 23 and the hinged rod 15, the downward swing of the hinged rod 15 drives the connecting block 23 and the slide rod 19 downward, causing the limit plate 35 and the plug rod 33 to move downward, disengaging the plug rod 33 from the insertion hole 31. At this point, the rotating block 17 is rotated again, so that the slide hole 34 is no longer aligned with the insertion hole 31. The rotating block 17 then rotates, and the compression spring 24 causes the plug rod 33 to elastically contact the outer surface of the connecting shaft 32, thereby maintaining the hinged rod 15 in a closed position close to the mating block 22. This facilitates storage and use.

[0026] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention; therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A torque wrench with a calibration function, comprising a torque wrench (11), a torque sensor (13) being provided on one side of the torque wrench (11), a slot (12) being provided on the torque sensor (13), and a base (14) being provided on the lower side of the torque sensor (13), wherein: A connecting shaft (32) is provided in the base (14), a rotating block (17) is rotatably provided on the outside of the connecting shaft (32), a matching block (22) is provided at the bottom of the rotating block (17), and four hinged rods (15) are rotatably provided in the matching block (22).

2. The torque wrench with calibration function according to claim 1, characterized in that: The end of the hinge rod (15) is provided with a buckle (16).

3. The torque wrench with calibration function according to claim 1, characterized in that: A sliding hole (34) is provided in the matching block (22), a plug hole (31) is provided in the connecting shaft (32), and a plug rod (33) is slidably provided in the sliding hole (34).

4. The torque wrench with calibration function according to claim 3, characterized in that: After the sliding hole (34) is aligned with the inserting hole (31), the inserting rod (33) slides out of the sliding hole (34) and is inserted into the inserting hole (31).

5. The torque wrench with calibration function according to claim 3, characterized in that: A limiting plate (35) is provided at the end of the plug rod (33), a sliding rod (19) is provided on one side of the limiting plate (35), and the sliding rod (19) slides through the bottom of the matching block (22), and a compression spring (24) is elastically provided between the limiting plate (35) and the bottom of the matching block (22).

6. The torque wrench with calibration function according to claim 5, characterized in that: A connecting block (23) is provided at the bottom of the sliding rod (19), and a plurality of rotating rods (21) are hingedly provided inside the connecting block (23), and the rotating rods (21) are hingedly provided with the hinge rod (15).

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