Portable torque wrench

Abstract

The utility model relates to the technical field of torque wrenches, in particular to a portable torque wrench which comprises a wrench body and a stress application rod, a three-jaw chuck is arranged at one end of the stress application rod, a shaft hole is formed in the axis of the three-jaw chuck, a blind hole corresponding to the shaft hole is formed in the stress application rod, a threaded rod is arranged in the blind hole, and the threaded rod is connected with the wrench body. The end, away from the three-jaw chuck, of the threaded rod penetrates through the stress application rod and extends to the outer side of the stress application rod, the end, located on the outer side of the stress application rod, of the threaded rod is sleeved with a rotating handle, and the rotating handle is rotationally installed on the stress application rod. A first pressure sensor is arranged on the centripetal face of a clamping jaw of the three-jaw chuck. By the adoption of the technical scheme, the stress application rod and the wrench body are divided into two parts, the overall length of the wrench is reduced, the wrench is convenient to carry, the wrench body can be firmly clamped on the stress application rod through clamping of the three-jaw chuck, and loosening in the using process is avoided.

Description

Technical Field

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

[0002] A torque wrench is a type of wrench, which is generally divided into two categories: electric torque wrench and manual torque wrench. There are many types of torque wrenches on the market. According to the power source, they can be divided into electric, hydraulic and manual torque wrenches. Among them, manual torque wrenches can be divided into mechanical and electronic torque wrenches.

[0003] At present, because torque wrenches need to meet the requirements of a larger torque application process, torque wrenches are generally large and long, and cannot be well stored in a storage box, making them inconvenient to carry when working outdoors. The wrenches that can be carried outdoors on the market cannot meet the requirements of torque wrenches' usage scenarios. Utility Model Content

[0004] The utility model aims to provide a portable torque wrench to solve the problems existing in the above-mentioned prior art.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A portable torque wrench comprises a wrench body and a force rod, wherein a three-jaw chuck is arranged at one end of the force rod, an axial hole is arranged at the axis center of the three-jaw chuck, a blind hole corresponding to the axial hole is arranged inside the force rod, a threaded rod is arranged in the blind hole, an end of the threaded rod away from the three-jaw chuck passes through the force rod and extends to the outside of the force rod, a rotating handle is sleeved on one end of the threaded rod located on the outside of the force rod, and the rotating handle is rotatably mounted on the force rod; a first pressure sensor is arranged on the centripetal surface of the jaws of the three-jaw chuck.

[0007] By adopting the above technical solution, the force rod and the wrench body are divided into two parts, which reduces the overall length of the wrench and makes it easy to carry. The wrench body can be firmly clamped on the force rod by clamping with a three-jaw chuck to avoid loosening during use.

[0008] In a further embodiment, a plurality of second pressure sensors are provided on the working surface of the wrench body, a wire groove is provided inside the wrench body, a clamping block corresponding to the force rod is provided on one side of the wrench body, a quick connector is provided on the clamping block, and a socket corresponding to the quick connector is provided in the three-jaw chuck of the force rod.

[0009] In a further embodiment, a battery installation position is provided inside the booster rod, a receiving groove is provided on the outer surface of the booster rod, a display screen is provided in the receiving groove, a surface of the display screen is provided with tempered glass, and the display screen is electrically connected to the battery installation position through wires.

[0010] In a further embodiment, an end of the force-adding rod away from the three-jaw chuck is provided with a rubber anti-slip sleeve, and the outer side of the rubber anti-slip sleeve is provided with densely distributed semicircular protrusions.

[0011] In a further embodiment, a plurality of grooves are provided at one end of the force adding rod away from the three-jaw chuck.

[0012] In a further embodiment, a plurality of spiral grooves are provided on the outer surface of the force adding rod.

[0013] In summary, the utility model has the following beneficial effects:

[0014] 1. The force rod and the wrench body are divided into two parts, which reduces the overall length of the wrench and makes it easy to carry. The wrench body can be firmly clamped on the force rod by a three-jaw chuck to avoid loosening during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the utility model in use state.

[0017] In the figure, 1. wrench body; 2. force rod; 3. three-jaw chuck; 4. threaded rod; 5. rotating handle; 6. first pressure sensor; 7. second pressure sensor; 8. battery installation position; 9. display screen; 10. rubber anti-slip cover. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0020] Embodiment 1:

[0021] like Figure 1-2 As shown, a portable torque wrench comprises a wrench body 1 and a force rod 2, a three-jaw chuck 3 is arranged at one end of the force rod 2, an axial hole is arranged at the axis of the three-jaw chuck 3, a blind hole corresponding to the axial hole is arranged inside the force rod 2, a threaded rod 4 is arranged in the blind hole, one end of the threaded rod 4 away from the three-jaw chuck 3 passes through the force rod 2 and extends to the outside of the force rod 2, a rotating handle 5 is sleeved on one end of the threaded rod 4 located on the outside of the force rod 2, and the rotating handle 5 is rotatably mounted on the force rod 2; a first pressure sensor 6 is arranged on the centripetal surface of the claw of the three-jaw chuck 3, a plurality of second pressure sensors 7 are arranged on the working surface of the wrench body 1, a wire groove is arranged inside the wrench body 1, a clamping block corresponding to the force rod 2 is arranged on one side of the wrench body 1, a quick connector is arranged on the clamping block, and a socket corresponding to the quick connector is arranged in the three-jaw chuck 3 of the force rod 2.

[0022] like Figure 1-2 As shown, a battery mounting position 8 is provided inside the force-adding rod 2, a receiving groove is provided on the outer surface of the force-adding rod 2, a display screen 9 is provided in the receiving groove, a surface of the display screen 9 is provided with tempered glass, the display screen 9 is electrically connected to the battery mounting position 8 through an electric wire, a rubber anti-slip sleeve 10 is provided on the end of the force-adding rod 2 away from the three-jaw chuck 3, and densely distributed semicircular protrusions are provided on the outer side of the rubber anti-slip sleeve 10, a plurality of grooves are provided on the end of the force-adding rod 2 away from the three-jaw chuck 3, and a plurality of spiral grooves are provided on the outer surface of the force-adding rod 2.

[0023] Specific implementation process: the force rod and the wrench body are divided into two parts, so the overall length of the wrench is reduced, which is convenient for carrying, and the wrench body can be firmly clamped on the force rod by clamping with a three-jaw chuck to avoid loosening during use. When in use, the three-jaw chuck can clamp a variety of wrench bodies of different specifications according to the diameter of the bolt, and the clamping force can be well detected by the first pressure sensor. When the clamping force is greatly reduced, it can be displayed on the display panel. The operator can make timely adjustments after discovering it, avoiding the problem that the traditional force rod suddenly separates from the wrench body and causes the operator to be injured due to the inertia of the force.

[0024] In the embodiments disclosed in the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present invention can be understood according to specific circumstances.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A portable torque wrench, comprising a wrench body (1) and a force rod (2), characterized in that: A three-jaw chuck (3) is arranged at one end of the force-adding rod (2), an axial hole is arranged at the axis of the three-jaw chuck (3), a blind hole corresponding to the axial hole is arranged inside the force-adding rod (2), a threaded rod (4) is arranged in the blind hole, one end of the threaded rod (4) away from the three-jaw chuck (3) passes through the force-adding rod (2) and extends to the outside of the force-adding rod (2), one end of the threaded rod (4) located outside the force-adding rod (2) is sleeved with a rotating handle (5), and the rotating handle (5) is rotatably mounted on the force-adding rod (2); a first pressure sensor (6) is arranged on the centripetal surface of the jaws of the three-jaw chuck (3).

2. A portable torque wrench according to claim 1, characterized in that: The working surface of the wrench body (1) is provided with a plurality of second pressure sensors (7), the interior of the wrench body (1) is provided with a wire groove, one side of the wrench body (1) is provided with a clamping block corresponding to the force-adding rod (2), the clamping block is provided with a quick connector, and a socket corresponding to the quick connector is provided in the three-jaw chuck (3) of the force-adding rod (2).

3. A portable torque wrench according to claim 2, characterized in that: A battery installation position (8) is arranged inside the boosting rod (2), a receiving groove is arranged on the outer surface of the boosting rod (2), a display screen (9) is arranged in the receiving groove, a surface of the display screen (9) is provided with tempered glass, and the display screen (9) is electrically connected to the battery installation position (8) through an electric wire.

4. A portable torque wrench according to claim 1, characterized in that: An end of the force-adding rod (2) away from the three-jaw chuck (3) is sleeved with a rubber anti-slip sleeve (10), and the outer side of the rubber anti-slip sleeve (10) is provided with densely distributed semicircular protrusions.

5. A portable torque wrench according to claim 1, characterized in that: A plurality of grooves are arranged at one end of the force-adding rod (2) away from the three-jaw chuck (3).

6. A portable torque wrench according to claim 1, characterized in that: The outer surface of the force adding rod (2) is provided with a plurality of spiral grooves.

Images