Split type T-shaped digital display torque wrench

Abstract

The utility model provides a split type T-shaped digital display torque wrench which comprises a handheld portion, a torque wrench body, a torque wrench body, a torque wrench body, a torque wrench body, a torque wrench body, a torque wrench body, a torque wrench body, a torque wrench body and a torque wrench body, and the handheld portion is provided with a data display area; the sensing part is used for sensing applied torsion, comprises a sensor, a ratchet device and a sleeve, and is detachably connected with the handheld part to form a T shape; and the sleeve is used for nesting a fastener and is mounted at the tail end of the sensing part. The device is designed to be of a split structure, and is convenient to disassemble and assemble and easy to carry; the device is high in measurement precision, visual and accurate in numerical value, stable in performance and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of wrenches, specifically to a novel split-type T-shaped digital torque wrench. Background Technology

[0002] A wrench is a common tool for installation and removal. It is a manual tool that uses leverage to tighten or loosen bolts, screws, nuts, and other threaded fasteners by using an opening or socket to hold the bolt or nut. Wrenches typically have openings or sockets at one or both ends of the handle to hold the bolt or nut. When using a wrench, external force is applied to the handle in the direction of thread rotation to tighten or loosen the bolt or nut.

[0003] In the professional fields of rail transit and urban bridge construction, precise control of tightening torque is crucial. This not only concerns the stability of the structure but also directly affects the safety and durability of the project. Unfortunately, conventional wrenches often fail to accurately determine whether the tightening torque is up to standard, which increases the risks during construction. Even more inconvenient is that these traditional wrenches are mostly one-piece designs, bulky and difficult to carry, especially in construction sites requiring frequent relocation, where they prove inadequate. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a split-type T-shaped digital torque wrench.

[0005] According to one aspect of the present invention, a split-type T-type digital torque wrench is provided, comprising:

[0006] The handheld unit is provided with a data display area;

[0007] The sensing unit, which is used to sense applied torque, is detachably connected to the handheld unit and forms a T-shape.

[0008] The sleeve is for nesting the fastener to be fastened and is installed at the end of the sensing part.

[0009] Preferably, the handheld part includes:

[0010] A handheld stick, which is placed horizontally, with the data display area disposed on the surface of the handheld stick;

[0011] A connecting rod is fixed perpendicularly to the center of the handheld handle.

[0012] Preferably, the two ends of the handheld lever are provided with anti-slip handles.

[0013] Preferably, it further includes a reinforcing plate; the two reinforcing plates are symmetrically distributed about the connecting rod as an axis of symmetry; each reinforcing plate is obliquely fixed between the connecting rod and the hand handle.

[0014] Preferably, the sensing element includes:

[0015] The tube body, the top of which is detachably connected to the handheld part;

[0016] A torque sensor, the top of which is a cylindrical structure fixed inside the tube; the bottom is a hollow shell that protrudes outside the tube.

[0017] A ratchet structure is disposed inside the housing of the torque sensor.

[0018] Preferably, the ratchet structure includes:

[0019] The ratchet body has its top connected to the housing via a torsion spring, and its bottom sides connected to the housing via retaining springs; the bottom center of the ratchet body extends outward to form a protruding tenon for connection with the sleeve;

[0020] The pawl has one end mounted in the groove of the ratchet body via a compression spring, and the other end engages unidirectionally with the internal teeth of the housing.

[0021] Preferably, the ratio of the width of the handle to the height of the entire wrench is 4:5.

[0022] Preferably, the handheld part and the sensing part are connected by a detachable connector.

[0023] Preferably, the data display area includes:

[0024] A microcontroller that communicates with the torque sensor and receives its sensing data;

[0025] A display, which is connected to the microcontroller, displays the sensed data.

[0026] Preferably, the data display area further includes:

[0027] A switch button, which controls the display screen to be turned on or off;

[0028] A setting button, which is connected to the microcontroller, is used to input the torque threshold range;

[0029] A reset button, which is connected to the microcontroller, controls the display to reset the numbers to zero.

[0030] A buzzer is connected to the microcontroller; the microcontroller makes a judgment based on the sensed data and the threshold range, and the buzzer sounds an alarm when the sensed data exceeds the threshold range;

[0031] A battery that powers the various buttons and the buzzer.

[0032] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0033] The split-type T-shaped digital torque wrench in this embodiment of the utility model is designed with a split structure, which is convenient to disassemble and assemble, and easy to carry; it is equipped with a sensing part and a data display area, which has high measurement accuracy, intuitive and accurate values, stable performance, and convenient operation. Attached Figure Description

[0034] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0035] Figure 1 This is a schematic diagram of the structure of a split T-type digital torque wrench in one embodiment of the present invention;

[0036] Figure 2 This is a cross-sectional schematic diagram of a split-type T-shaped digital torque wrench in a preferred embodiment of the present invention.

[0037] Figure 3 This is a schematic diagram of the data display area in one embodiment of the present invention.

[0038] In the diagram, 100 is the handheld part, 200 is the sensing part, and 300 is the sleeve; 11 is the data display area, 12 is the handheld lever, 13 is the anti-slip handle, 14 is the reinforcing plate, 15 is the disassembly connector, and 16 is the connecting rod; 20 is the housing, 21 is the tube, 22 is the torque sensor, 23 is the ratchet structure, 24 is the sensor fixing pin, 231 is the ratchet body, 232 is the pawl, 233 is the torsion spring, 234 is the retaining ring, and 235 is the compression spring. Detailed Implementation

[0039] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0040] In one embodiment of this utility model, a split-type T-shaped digital display torque wrench is provided, such as... Figure 1As shown, it includes: a handheld part 100, a sensing part 200, and a sleeve 300. The handheld part 100 is provided with a data display area 11; the sensing part 200 is a sensing part for sensing applied torque, which is detachably connected to the handheld part 100 to form a T-shaped structure; the sleeve 300 is a sleeve for nesting the fastener to be fastened, which is installed at the end of the sensing part 200.

[0041] In the above embodiments, the wrench is designed as a split structure, which is convenient to assemble and disassemble and easy to carry; it is equipped with a sensing part and a data display area, which provides high measurement accuracy, intuitive and accurate values, stable performance and convenient operation.

[0042] To improve the user experience, in a preferred embodiment, the handheld part 100 consists of a handheld lever 12 and a connecting rod 16. The handheld lever 12 is placed horizontally, and a data display area 11 is disposed on the surface of the handheld lever 12; the connecting rod 16 is fixed perpendicularly to the center of the handheld lever 12, forming a T-shaped structure.

[0043] To improve handheld comfort, in a preferred embodiment, anti-slip handles 13 are installed at both ends of the handheld lever 12 to facilitate manual gripping and force application.

[0044] To improve the overall stability of the handheld part during rotation of the handheld lever, a reinforcing plate 14 is added in a preferred embodiment. The two reinforcing plates 14 are symmetrically distributed about the connecting rod 16 as the axis of symmetry; each reinforcing plate 14 is fixed between the connecting rod 16 and the handheld lever 12, forming a triangular structure to improve structural stability.

[0045] In order to obtain accurate torque measurement, in a preferred embodiment, the sensing unit 200 is composed of a tube 21, a torque sensor 22 and a ratchet structure 23.

[0046] The top of the tube body 21 is detachably connected to the handle. In some specific embodiments, the tube body 21 is connected to the connecting rod 16 via a detachable connector 15. Of course, to ensure information transmission, a quick-connect cable connector can also be used, such as... Figure 2 As shown. The upper end of the torque sensor 22 is a cylindrical structure, which is fixed inside the tube 21 by a sensor fixing pin 24. The bottom of the torque sensor 22 is a cavity-shaped housing 20, the diameter of which is larger than that of the tube 21, and the entire housing is exposed outside the bottom of the tube. A ratchet structure 23 is installed inside the housing.

[0047] like Figure 2As shown, the ratchet structure 23 consists of a ratchet body 231 and a pawl 232. Specifically, the top of the ratchet body 231 is connected to the housing 20 via a torsion spring 233, while the two sides of the bottom of the ratchet body 231 are connected to the housing 20 via retaining springs 234. A tenon protrudes outward from the center of the bottom of the ratchet body 231 for connection with the sleeve 300. One end of the pawl 232 is engaged in a groove on the side of the ratchet body via a compression spring 235, while the other end engages unidirectionally with the internal teeth of the housing 20 (clockwise rotation locks the pawl and housing; counterclockwise rotation separates the pawl and housing).

[0048] Based on the design in the above embodiments, when an external force is applied to the tube body 21, causing it to rotate clockwise, the tube body 21 drives the torque sensor 22 to rotate, and the housing 20 at the bottom of the torque sensor 22 also rotates. When the pawl 232 and the housing 20 are locked, the pawl 232 is driven to rotate, causing the ratchet body 231 to rotate simultaneously. The tenon at the bottom of the ratchet body 231 drives the sleeve 300 to rotate, thereby tightening the fastener. During this process, due to the resistance of the fastener, the top and bottom housings of the torque sensor 22 cannot always rotate synchronously. Therefore, the middle part of the torque sensor 22 will twist, and the torque sensor will sense the force, thereby measuring the torque value.

[0049] To provide intuitive data, in a preferred embodiment, the data display area includes a microcontroller, a display, and a battery. The microcontroller communicates with the torque sensor and receives its sensed data. The display is connected to the microcontroller and displays the sensed data. The battery powers both the microcontroller and the display. The microcontroller and the torque sensor can communicate wirelessly or via cable.

[0050] Of course, to further enrich the functionality, in a preferred embodiment, multiple buttons and a buzzer are also provided in the data display area. For example... Figure 3 As shown. A power switch controls the display screen to turn on or off; a setting button connects to the microcontroller and is used to input the torque threshold range; a clear button connects to the microcontroller and controls the display to reset to zero. A buzzer connects to the microcontroller; the microcontroller makes a judgment based on the sensed data and the threshold range, and the buzzer sounds an alarm when the sensed data exceeds the threshold range.

[0051] This invention has a storage function that can save 100 measurement values ​​in real time.

[0052] In some other embodiments, a buzzer will also sound an alarm when the battery is low on power.

[0053] In some specific embodiments, the split-type T-shaped digital torque wrench of this utility model is designed with four specifications and models, as shown in the table below:

[0054]

[0055] In one embodiment, a specific usage process of a split-type T-shaped digital torque wrench as described in the above embodiments is also provided:

[0056] The sensor 200 and the handheld part 100 are installed via a detachable connector, and a sleeve of appropriate size is installed at the tenon 23.

[0057] Insert the 300 sleeve into the fastener to be tightened;

[0058] Grip the handle 12 firmly with both hands and rotate it clockwise; at this time, the pawl 232 in the ratchet mechanism locks with the housing 20, the tube 21 rotates, and sequentially drives the top of the torque sensor, the housing, the pawl, the ratchet body, and the tenon to rotate; the sleeve rotates along with it, tightening the fastener to be fastened;

[0059] Grip the handle 12 firmly with both hands and rotate it counterclockwise; at this time, the pawl in the ratchet structure unlocks, returning the handle to the position before the last applied force. During this process, the tube sequentially drives the top of the torque sensor and the housing to rotate, while the pawl, ratchet body, and tenon remain stationary. Apply force clockwise again, repeating this motion until the fastener is tightened to the appropriate tightness. During rotation, the torque generated by the torque sensor driven by the ratchet body is transmitted to the display and converted into a digital signal, showing the torque value according to the magnitude of the rotational force.

[0060] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes and modifications within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A split-type T-shaped digital display torque wrench, characterized in that, include: The handheld unit is provided with a data display area; The sensing unit, which is used to sense applied torque, is detachably connected to the handheld unit and forms a T-shape. A sleeve, which is used to nest the fastener to be fastened, is installed at the end of the sensing part; The data display area includes: A microcontroller that communicates with the torque sensor and receives its sensing data; A display, which is connected to the microcontroller, displays the sensed data.

2. The split-type T-shaped digital display torque wrench according to claim 1, characterized in that, The handheld part includes: A handheld stick, which is placed horizontally, with the data display area disposed on the surface of the handheld stick; A connecting rod is fixed perpendicularly to the center of the handheld handle.

3. A split-type T-shaped digital display torque wrench according to claim 2, characterized in that, The handheld handle shown has anti-slip handles at both ends.

4. A split-type T-shaped digital display torque wrench according to claim 2, characterized in that, It also includes a reinforcing plate; the two reinforcing plates are symmetrically distributed about the connecting rod as an axis of symmetry; each reinforcing plate is obliquely fixed between the connecting rod and the hand handle.

5. A split-type T-shaped digital display torque wrench according to claim 1, characterized in that, The sensing element includes: The tube body, the top of which is detachably connected to the handheld part; A torque sensor, the top of which is a cylindrical structure fixed inside the tube; the bottom is a hollow shell that protrudes outside the tube. A ratchet structure is disposed inside the housing of the torque sensor.

6. A split-type T-shaped digital display torque wrench according to claim 5, characterized in that, The ratchet structure includes: The ratchet body has its top connected to the housing via a torsion spring, and its bottom sides connected to the housing via retaining springs; the bottom center of the ratchet body extends outward to form a protruding tenon for connection with the sleeve; The pawl has one end mounted in the groove of the ratchet body via a compression spring, and the other end engages unidirectionally with the internal teeth of the housing.

7. A split-type T-shaped digital display torque wrench according to claim 1, characterized in that, The ratio of the width of the handle to the height of the entire wrench is 4:

5.

8. A split-type T-shaped digital display torque wrench according to claim 1, characterized in that, The handheld part and the sensing part are connected by a detachable connector.

9. A split-type T-shaped digital display torque wrench according to claim 1, characterized in that, The data display area also includes: A switch button, which controls the display to be turned on or off; A setting button, which is connected to the microcontroller, is used to input the torque threshold range; A reset button, which is connected to the microcontroller, controls the display to reset the numbers to zero. A buzzer is connected to the microcontroller; the microcontroller makes a judgment based on the sensed data and the threshold range, and the buzzer sounds an alarm when the sensed data exceeds the threshold range; A battery that powers the various buttons and the buzzer.

Images