A digital wrench with a knob

Abstract

This application discloses a digital display wrench with a knob, belonging to the technical field of torque wrenches. A digital display wrench with a knob includes a wrench body and an operation panel disposed on the wrench body. The operation panel is provided with a display screen and an adjustment component. The adjustment component includes at least one knob connected to an internal controller of the operation panel for changing the control parameters of the digital display wrench; wherein, the operation panel at the knob location also provides a knob locking mechanism for locking the knob to prevent accidental activation. The beneficial effect of this application is that it provides a digital display wrench with a knob for efficiently adjusting control parameters.

Description

Technical Field

[0001] This application relates to the field of torque wrench technology, and more specifically, to a digital display wrench with a knob. Background Technology

[0002] A torque wrench is a tool used to precisely apply and control torque. It is mainly used for tightening or loosening fasteners such as bolts and nuts to ensure that they reach the specified tightening force and to avoid equipment failure or safety accidents caused by overtightening or loosening.

[0003] Existing digital torque wrenches use buttons on their control panels to set relevant control parameters, which is inefficient. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a digital display wrench with a knob, including a wrench body and an operation panel disposed on the wrench body. The operation panel is provided with a display screen and an adjustment component. The adjustment component includes a knob cap that is controlled and connected to an internal controller of the operation panel for changing the control parameters of the digital display wrench. The operation panel is also provided with a knob cap locking mechanism at the knob cap location for locking the knob cap to prevent accidental activation.

[0006] When torque needs to be adjusted, the control parameters of the digital wrench can be changed by turning the nut. Compared with the traditional method of setting relevant control parameters by buttons, this method is more efficient and convenient.

[0007] Furthermore, the rotating cap includes: a first rotating shaft rotatably connected to the operation panel; a resistance strain gauge located inside the operation panel and fixedly connected to the circuit board inside the operation panel; a first turntable located inside the operation panel and coaxially fixedly connected to the first rotating shaft; an adjusting plate fixedly connected to the first turntable; and a rotating cap fixedly disposed at the end of the first rotating shaft away from the operation panel; wherein the adjusting plate is located below the resistance strain gauge, and the resistance is adjusted by adjusting the adjusting plate.

[0008] Further, the nut locking mechanism includes: a drive sleeve, fitted on the outside of the nut and fixedly connected to it; a connecting ring, fixedly connected to the edge of the drive sleeve opening, with an L-shaped cross-section perpendicular to its length direction, forming an annular step at the opening of the drive sleeve; a limiting ring, located above the connecting ring and coaxially arranged with it; multiple guide posts, passing through the connecting ring and fixedly connected to the operation panel and slidingly engaged with the limiting ring to fix the limiting ring and prevent it from rotating; a baffle, fixedly mounted on the guide posts to prevent the limiting ring from detaching from the guide posts; and a first spring, fitted on the guide posts and located between the baffle and the limiting ring, with its two ends fixedly connected to the limiting ring and the baffle respectively; the limiting ring fixes the connecting ring by the preload of the first spring.

[0009] Furthermore, the guide post, baffle and first spring are provided in multiple sets, which are equidistantly distributed along the circumference of the limiting ring.

[0010] Furthermore, the rotating cap locking mechanism also includes a push plate, which is fixedly connected to the limiting ring to provide a force-bearing surface for pushing the limiting ring upward.

[0011] Furthermore, the push plate is located on the outer circumference of the limiting ring.

[0012] Furthermore, the limiting ring includes a guide hole; the guide post portion is located within the guide hole to guide the limiting ring.

[0013] The beneficial effect of this application is that it provides a digital display wrench with a knob that has efficient adjustment and control parameters. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0015] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0016] In the attached diagram: Figure 1 This is an overall schematic diagram based on an embodiment of this application; Figure 2 This is a structural diagram of a part of an embodiment, mainly showing the structure of the handle; Figure 3 yes Figure 2 The enlarged view of part A mainly shows the structure of the drive sleeve and the rotating cap; Figure 4 yes Figure 3 The enlarged view of part B mainly shows the structure of the connecting ring and the limiting ring; Figure 5 This is a structural schematic diagram of a part of an embodiment, mainly showing the structure of the adjustment piece; Figure 6 This is a structural schematic diagram as part of an embodiment, mainly showing the structure of the resistance strain gauge.

[0017] Figure label: 100. Wrench body; 101. Control panel; 102. Rotary cap; 103. First rotating shaft; 104. Resistance strain gauge; 104a. Circular section; 104b. Straight section; 105. First turntable; 106. Adjusting plate; 107. Drive sleeve; 107a. Mounting hole; 108. Connecting ring; 109. Guide post; 110. Limiting ring; 110a. Guide hole; 112. Baffle; 113. First spring; 114. Push plate. Detailed Implementation

[0018] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0019] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0020] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0021] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0022] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Reference Figure 1-6A digital display wrench with a knob includes a wrench body 100 and an operation panel 101 disposed on the wrench body 100. The operation panel 101 is provided with a display screen and an adjustment component. The adjustment component includes a knob cap 102 that is controlled and connected to an internal controller of the operation panel 101 for changing the control parameters of the digital display wrench. The operation panel 101 also includes a knob cap 102 locking mechanism at the knob cap 102 to lock the knob cap 102 and prevent accidental activation.

[0024] The rotating cap 102 includes: a first rotating shaft 103, a resistance strain gauge 104, a first rotating disk 105, and an adjusting plate 106. The first rotating shaft 103 is rotatably connected to the operation panel 101. The resistance strain gauge 104 is located inside the operation panel 101 and is fixedly connected to the circuit board inside the operation panel 101. The first rotating disk 105 is located inside the operation panel 101 and is coaxially fixedly connected to the first rotating shaft 103. The adjusting plate 106 is fixedly connected to the first rotating disk 105. The rotating cap 102 is fixedly disposed at the end of the first rotating shaft 103 away from the operation panel 101. The adjusting plate 106 is located below the resistance strain gauge 104, and the resistance is adjusted by means of the adjusting plate 106.

[0025] The screw cap 102 is located at one end of the first rotating shaft 103 and is fixedly connected to the first rotating shaft 103. The adjusting plate 106 is located below the resistance strain gauge 104, and the resistance is adjusted via the adjusting plate 106. The resistance strain gauge 104 includes an arc-shaped portion 104a and a straight portion 104b. The arc-shaped portion 104a has an arc-shaped structure, and the straight portion 104b has a long strip structure. The straight portions 104b are spaced apart. When a portion of the adjusting plate 106 moves to the spaced-out position of the straight portions 104b, the cross-sectional area is minimized, and the resistance is also minimized. The circuit board inside the operation panel is electrically connected to the controller inside the operation panel. The controller is a PCB control chip. Changes in the resistance of the resistance strain gauge change the voltage, and the voltage change sends an output signal to the controller. The controller changes the torque of the digital display wrench through the voltage signal. Compared with traditional button settings for related control parameters, this method is more efficient and convenient.

[0026] The nut locking mechanism includes: a drive sleeve 107, a connecting ring 108, a limiting ring 110, guide posts 109, a baffle 112, and a first spring 113 for the baffle 112. The drive sleeve 107 is sleeved on the outside of the nut 102 and is fixedly connected to it. The connecting ring 108 is fixedly connected to the edge of the opening of the drive sleeve 107, and its cross-section perpendicular to its length is L-shaped, forming an annular step at the opening of the drive sleeve 107. The limiting ring 110 is located above the connecting ring 108 and is coaxially arranged with it. Multiple guide posts 109 pass through the connecting ring 108 and are fixedly connected to the operation panel 101, and slide in cooperation with the limiting ring 110 to fix the limiting ring 110 and prevent its rotation. The baffle 112 is fixedly mounted on the guide post 109 to prevent the limiting ring 110 from disengaging from the guide post 109.

[0027] The first spring 113 is sleeved on the guide post 109 and located between the baffle 112 and the limiting ring 110, with its two ends fixedly connected to the limiting ring 110 and the baffle 112, respectively. The limiting ring 110 is fixed to the connecting ring 108 by the preload of the first spring 113. Multiple sets of the guide post 109, baffle 112, and first spring 113 are provided, equidistantly distributed along the circumference of the limiting ring 110. The locking mechanism of the rotating cap 102 also includes a push plate 114, which is fixedly connected to the limiting ring 110 to provide a force-bearing surface for upward pushing of the limiting ring 110. The push plate 114 is located on the outer circumference of the limiting ring 110. The limiting ring 110 includes a guide hole 110a, and part of the guide post 109 is located in the guide hole 110a to guide the limiting ring 110.

[0028] When it is necessary to lock the rotary cap 102, simply loosen the push plate 114. Under the preload of the first spring 113, the limit ring 110 will press against the drive sleeve 107. The limit ring 110 fixes the drive sleeve 107, thereby fixing the rotary cap 102 and locking it to prevent accidental contact.

[0029] Workflow: When the resistance of the strain gauge 104 needs to be adjusted, push the push plate 114. The push plate 114 moves, causing the limit ring 110 to move away from the drive sleeve 107, thus disengaging the drive sleeve 107 from the limit ring 110. Then, rotate the drive sleeve 107, which in turn rotates the rotating cap 102. The rotating cap 102 then moves the adjusting plate 106, thereby changing the cross-sectional area of ​​the strain gauge 104, and thus changing its resistance. The circuit board inside the operation panel is electrically connected to the controller inside the operation panel. The controller is a PCB control chip. The change in the resistance of the strain gauge changes the voltage, which in turn sends an output signal to the controller. The controller then uses this voltage signal to change the control parameters of the digital display wrench.

[0030] After the torque is adjusted, the push plate 114 is released. Under the action of the first spring 113, the limit ring 110 will be reset and the connecting ring 108 will be fixed by the limit ring 110. The drive sleeve 107 is fixedly connected to the connecting ring 108. The fixed connection ring 108 can fix the drive sleeve 107, thereby preventing the drive sleeve 107 and the rotating cap 102 from rotating, thus achieving the effect of preventing accidental contact.

[0031] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A digital display wrench with a knob, comprising a wrench body (100) and an operation panel (101) disposed on the wrench body (100), wherein the operation panel (101) is provided with a display screen and an adjustment component, characterized in that: The adjustment component includes a nut (102) that is connected to the internal controller of the operation panel (101) for changing the control parameters of the digital wrench; The operation panel (101) is also provided with a locking mechanism for locking the cap (102) to prevent accidental contact.

2. The digital display wrench with knob according to claim 1, characterized in that: The swivel cap (102) includes: The first rotating shaft (103) is rotatably connected to the operation panel (101); The resistance strain gauge (104) is located inside the operation panel (101) and is fixedly connected to the circuit board inside the operation panel (101); The first turntable (105) is located inside the operation panel (101) and is coaxially fixedly connected to the first rotating shaft (103); The adjusting plate (106) is fixedly connected to the first turntable (105); A rotating cap (102) is fixedly installed at the end of the first rotating shaft (103) away from the operation panel (101); The adjustment piece (106) is located below the resistance strain gauge (104), and the resistance is adjusted by the adjustment piece (106).

3. The digital display wrench with knob according to claim 1, characterized in that: The locking mechanism of the rotating cap (102) includes: The drive sleeve (107) is sleeved on the outside of the rotating cap (102) and is fixedly connected to the rotating cap (102); The connecting ring (108) is fixedly connected to the edge of the opening of the drive sleeve (107), and its cross section perpendicular to its length direction is L-shaped, forming an annular step at the opening of the drive sleeve (107). A limiting ring (110) is located above the connecting ring (108) and is coaxially arranged with the connecting ring (108); The guide post (109) is configured as multiple posts, which pass through the connecting ring (108) and are fixedly connected to the operation panel (101) and slide in cooperation with the limiting ring (110) to fix the limiting ring (110) to prevent it from rotating. A baffle (112) is fixedly mounted on the guide post (109) to prevent the limiting ring (110) from disengaging from the guide post (109); The first spring (113) is sleeved on the guide post (109) and located between the baffle (112) and the limiting ring (110), with its two ends fixedly connected to the limiting ring (110) and the baffle (112) respectively. The limiting ring (110) fixes the connecting ring (108) by the preload of the first spring (113).

4. The digital display wrench with knob according to claim 3, characterized in that: The guide post (109), baffle (112) and first spring (113) are provided in multiple sets, which are equidistantly distributed along the circumference of the limiting ring (110).

5. The digital display wrench with knob according to claim 3, characterized in that: The locking mechanism of the swivel cap (102) also includes a push plate (114), which is fixedly connected to the limiting ring (110) to provide a force-bearing surface for pushing the limiting ring (110) upward.

6. The digital display wrench with knob according to claim 5, characterized in that: The push plate (114) is located on the outer circumference of the limiting ring (110).

7. The digital display wrench with knob according to claim 3, characterized in that: The limiting ring (110) includes a guide hole (110a); the guide post (109) is partially located in the guide hole (110a) to guide the limiting ring (110).

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