Dual-purpose torque screwdriver

Abstract

The utility model discloses a dual-purpose torque screwdriver which comprises a screwdriver body, and the screwdriver body comprises a handle, a torque sensor, a torque sensor and a torque sensor. The torque part is arranged in the assembling space along the front end of the handle and used for torque rotation of the screwdriver; the locking assembly is arranged at the front end of the handle, matched with the torque piece in a locking mode and used for locking rotation of the screwdriver. The torque adjusting assembly is arranged in the assembling space along the rear end of the handle and used for adjusting the torque amount of the torque part; the screwdriver rod sleeve head is arranged at the front end of the handle, connected with the torque piece and used for being sleeved with screwdriver heads of different models. According to the utility model, the structural design is reasonable, and a holding and component mounting space is provided through the handle; the torque part realizes a torque rotation function; the locking assembly controls rotation locking; the torque adjusting assembly is responsible for adjusting the torque; and compared with a traditional screwdriver with a single function, practicability and adaptability are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary tools, and in particular to a dual-purpose torque screwdriver. Background Technology

[0002] Screwdrivers are widely used tools in various manufacturing, equipment maintenance, and everyday household scenarios. They are essential for routine assembly and repair work. Traditional screwdrivers rely solely on the user's hand strength to control rotation, making precise torque control difficult. In demanding tasks such as electronic equipment assembly and precision machinery repair, excessive torque can strip screws and damage components, while insufficient torque can result in loose screws, affecting equipment stability and reliability. Existing torque screwdrivers generally suffer from limited functionality, only suitable for specific torque requirements. For routine operations that don't require precise torque control, a separate ordinary screwdriver is still necessary, increasing tool carrying and management costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a dual-purpose torque screwdriver in light of the current state of the technology.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problem is: a dual-purpose torque screwdriver, including a screwdriver body, wherein the screwdriver body includes:

[0005] A handle, wherein the handle has an assembly space;

[0006] A torque element is disposed along the front end of the handle within the assembly space for torque rotation of the screwdriver.

[0007] A locking component is disposed at the front end of the handle and engages with a torque element for locking the rotation of the screwdriver;

[0008] A torque adjustment component is disposed within the assembly space along the rear end of the handle and is used to adjust the torque amount of the torque component.

[0009] A screwdriver holder, which is located at the front end of the handle and connected to the torque element, is used to mount screwdriver bits of different models.

[0010] Preferably, the torque component includes an upper friction plate, a lower friction plate, a central shaft passing through the upper and lower friction plates, and a torque spring disposed on the central shaft, arranged sequentially from front to back. The upper and lower friction plates are respectively provided with meshing helical teeth at their proximal ends. A front stop fixing head is provided at the front end of the handle. The torque component is fixedly disposed in the assembly space through the front stop fixing head. The tool holder sleeve passes through the front stop fixing head and is rotatably connected to the upper friction plate.

[0011] The aforementioned components achieve the following effects: By incorporating a torque-enhancing device including an upper friction plate, a lower friction plate, a central shaft, and a torque spring, with meshing helical teeth on adjacent ends of the upper and lower friction plates, the helical teeth increase friction transmission efficiency, resulting in more precise and stable torque transmission. The front stop fixing head securely mounts the torque-enhancing device, and the tool holder sleeve is rotatably connected to the upper friction plate to ensure effective torque transmission. Simultaneously, the helical teeth's slippage design during tightening provides overload protection, preventing damage from excessive torque, meeting high-precision work requirements, and ensuring operational safety.

[0012] Preferably, the locking assembly includes a locking bead and a locking sleeve that is slidably connected to the front end of the handle. The front end of the handle has a locking hole along the upper friction plate. The locking bead is disposed in the locking hole and engages with the upper friction plate. The inner wall of the locking sleeve is divided into an unlocking cavity and a locking wall.

[0013] The aforementioned components achieve the following effects: the locking assembly, comprising a locking bead and a locking sleeve, features a simple and efficient structure. The locking bead engages with the upper friction plate at the locking hole to achieve rotational locking, preventing unexpected torque changes. The locking sleeve is internally divided into an unlocking chamber and a locking wall, allowing locking and unlocking operations to be performed simply by sliding, which is convenient, quick, and improves work efficiency, making it particularly suitable for work scenarios involving frequent locking and unlocking.

[0014] Preferably, the torque adjustment assembly includes an adjustment screw, a compression nut disposed at the front end of the adjustment screw and in contact with a torque spring, stops disposed at intervals along the compression nut on the adjustment screw, a torque adjustment knob disposed at the rear end of the adjustment screw, and an anti-slip nut disposed within the torque adjustment knob. The adjustment screw passes through the torque adjustment knob and is fixedly connected by the anti-slip nut.

[0015] The aforementioned components achieve the following effect: The torque adjustment assembly includes an adjusting screw, a compression nut, a stop, a torque adjustment knob, and a non-slip nut. Through their coordinated operation, they enable precise torque adjustment. Rotating the torque adjustment knob drives the adjusting screw, which in turn drives the compression nut to change the compression degree of the torque spring, thus precisely adjusting the torque. The non-slip nut ensures a secure connection, preventing loosening during adjustment and guaranteeing accuracy and stability. Users can precisely set the torque value according to different working requirements.

[0016] Preferably, the rear end of the handle has an adjustment window along the compression nut, and the compression nut has an indicator pin extending along the adjustment window.

[0017] The aforementioned components achieve the following effect: the adjustment window at the rear of the handle engages with the indicator pin on the compression nut to provide the user with an intuitive torque adjustment indication. During adjustment, the user can quickly understand the torque adjustment range by observing the position of the indicator pin within the adjustment window, eliminating the need for additional tools or complex measurements, reducing operational difficulty, improving adjustment efficiency and accuracy, and allowing users to quickly and accurately set the torque value.

[0018] Preferably, the torque adjustment knob has a plurality of positioning holes arranged in a ring at one end of the stop block, and the stop block has a plurality of positioning grooves arranged in a ring at one end of the positioning holes, with elastic positioning beads provided in the positioning grooves.

[0019] The aforementioned components achieve the following effect: the positioning hole on the torque adjustment knob, the positioning groove on the stop block, and the elastic positioning bead form a positioning structure, providing precise positioning when adjusting torque. The elastic positioning bead switches between the positioning hole and the positioning groove, generating tactile and audible feedback to help the user accurately adjust the torque. Simultaneously, this structure prevents accidental rotation of the torque adjustment knob, ensuring stable torque setting and guaranteeing operational reliability and work quality.

[0020] Preferably, the torque adjustment knob has a tail cap at its rear end, and the outer surface of the torque adjustment knob has anti-slip threads.

[0021] The effects achieved by the above components are as follows: the anti-slip threads on the outer surface of the torque adjustment knob increase the friction between the knob and the fingers. When adjusting the torque, even if the hands are sweaty or the operating environment is complex, the user can hold the knob firmly and turn it accurately, avoiding slippage and adjustment errors, improving operating comfort and reliability, and making the torque adjustment process smoother and more accurate.

[0022] Compared with existing technologies, the advantages of this invention are as follows: By designing the screwdriver body to include a handle, a torque component, a locking component, a torque adjustment component, and a screwdriver head, the handle provides space for gripping and component installation; the torque component enables torque rotation; the locking component controls rotation locking; the torque adjustment component adjusts the torque; and the screwdriver head is compatible with different screwdriver bits. This allows the screwdriver to meet various tightening needs, greatly improving its practicality and adaptability compared to traditional single-function screwdrivers. Attached Figure Description

[0023] Figure 1 This is an exploded structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of this utility model;

[0025] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 4This is an exploded structural diagram of the present invention.

[0027] Reference numerals: 1. Screwdriver body; 2. Handle; 3. Torque component; 4. Locking assembly; 5. Torque adjustment assembly; 6. Screwdriver sleeve; 7. Upper friction plate; 8. Lower friction plate; 9. Central shaft; 10. Torque spring; 11. Helical tooth; 12. Front stop fixing head; 13. Locking bead; 14. Locking slide sleeve; 15. Locking hole; 16. Unlocking cavity; 17. Locking wall; 18. Adjusting screw; 19. Compression nut; 20. Stop; 21. Torque adjustment knob; 22. Anti-slip nut; 23. Adjustment window; 24. Indicator pin; 25. Positioning hole; 26. Positioning groove; 27. Elastic positioning bead; 28. Tail cap. Detailed Implementation

[0028] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0029] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, in addition to indicating orientation or positional relationship, the aforementioned terms may also be used to indicate other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in this utility model can be understood according to the specific circumstances.

[0031] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts. The connection methods described herein are existing technologies without any modifications and are common knowledge to those skilled in the art. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] In this embodiment 1,

[0034] like Figures 1 to 4 As shown, this utility model provides a dual-purpose torque screwdriver, including a screwdriver body 1, wherein the screwdriver body 1 includes:

[0035] Handle 2, wherein the handle 2 has an assembly space;

[0036] Torque component 3 is disposed along the front end of handle 2 within the assembly space for screwdriver torque rotation.

[0037] Locking component 4, which is disposed at the front end of the handle 2 and locked in cooperation with the torque component 3, is used to lock the rotation of the screwdriver;

[0038] Torque adjustment component 5, which is disposed in the assembly space along the rear end of handle 2, is used to adjust the torque amount of torque component 3;

[0039] The tool holder 6 is located at the front end of the handle 2 and connected to the torque component 3, and is used to mount different types of screwdriver heads.

[0040] By designing the screwdriver body 1, which includes a handle 2, a torque element 3, a locking component 4, a torque adjustment component 5, and a blade holder 6, the handle 2 provides a grip and mounting space for the components; the torque element 3 enables torque rotation; the locking component 4 controls the rotation locking; the torque adjustment component 5 adjusts the torque; and the blade holder 6 adapts to different screwdriver bits. This allows the screwdriver to meet various tightening needs, greatly improving its practicality and adaptability compared to traditional single-function screwdrivers.

[0041] Meanwhile, by setting the locking component 4, the locking can be switched between torque screwdriver and ordinary screwdriver modes. This can meet the needs of scenarios with precise torque requirements, as well as routine operations that do not require precise torque control. It solves the inconvenience of having to carry multiple tools for a single-function screwdriver and reduces the cost of tool carrying and management.

[0042] The torque component 3 includes an upper friction plate 7, a lower friction plate 8, a central shaft 9 passing through the upper friction plate 7 and the lower friction plate 8, and a torque spring 10 arranged on the central shaft 9, arranged sequentially from front to back. The upper friction plate 7 and the lower friction plate 8 are respectively provided with meshing helical teeth 11 at their proximal ends. The front end of the handle 2 is provided with a front stop fixing head 12. The torque component 3 is fixedly installed in the assembly space through the front stop fixing head 12. The tool holder sleeve 6 passes through the front stop fixing head 12 and is rotatably connected to the upper friction plate 7.

[0043] The torque component 3 comprises an upper friction plate 7, a lower friction plate 8, a central shaft 9, and a torque spring 10. The upper friction plate 7 and the lower friction plate 8 each have meshing helical teeth 11 at their adjacent ends. These helical teeth 11 increase the efficiency of frictional force transmission, making torque transmission more precise and stable. The front stop fixing head 12 securely mounts the torque component 3, and the tool holder sleeve 6 is rotatably connected to the upper friction plate 7 to ensure effective torque transmission. Simultaneously, the helical teeth 11's slippage design during tightening provides overload protection, preventing damage from excessive torque, meeting high-precision working requirements, and ensuring operational safety.

[0044] The locking assembly 4 includes a locking bead 13 and a locking sleeve 14 that is slidably connected to the front end of the handle 2. The front end of the handle 2 has a locking hole 15 along the upper friction plate 7. The locking bead 13 is disposed in the locking hole 15 and engages with the upper friction plate 7. The inner wall of the locking sleeve 14 is divided into an unlocking cavity 16 and a locking wall 17.

[0045] The locking assembly 4 includes a locking bead 13 and a locking sleeve 14, featuring a simple and efficient structure. The locking bead 13 engages with the upper friction plate 7 at the locking hole 15 to achieve rotational locking, preventing unexpected torque changes. The locking sleeve 14 is internally divided into an unlocking cavity 16 and a locking wall 17, allowing locking and unlocking operations to be performed simply by sliding, which is convenient, quick, and improves work efficiency, making it especially suitable for work scenarios involving frequent locking and unlocking.

[0046] The torque adjustment assembly 5 includes an adjustment screw 18, a compression nut 19 disposed at the front end of the adjustment screw 18 and in contact with the torque spring 10, a stop block 20 disposed at intervals along the compression nut 19 on the adjustment screw 18, a torque adjustment knob 21 disposed at the rear end of the adjustment screw 18, and an anti-slip nut 22 disposed inside the torque adjustment knob 21. The adjustment screw 18 passes through the torque adjustment knob 21 and is fixedly connected by the anti-slip nut 22.

[0047] The torque adjustment assembly 5 includes an adjusting screw 18, a compression nut 19, a stop block 20, a torque adjustment knob 21, and an anti-slip nut 22. Through their coordinated operation, they achieve precise torque adjustment. Rotating the torque adjustment knob 21 drives the adjusting screw 18, which in turn drives the compression nut 19 to change the compression level of the torque spring 10, thus precisely adjusting the torque. The anti-slip nut 22 ensures a secure connection, preventing loosening during adjustment and guaranteeing accuracy and stability. Users can precisely set the torque value according to different working requirements.

[0048] An adjustment window 23 is provided at the rear end of the handle 2 along the compression nut 19, and an indicator pin 24 is provided extending from the compression nut 19 along the adjustment window 23.

[0049] The adjustment window 23 at the rear of the handle 2 engages with the indicator pin 24 on the compression nut 19 to provide the user with an intuitive torque adjustment indication. During adjustment, the user can quickly understand the torque adjustment range by observing the position of the indicator pin 24 within the adjustment window 23, without the need for additional tools or complex measurements, reducing the difficulty of operation, improving adjustment efficiency and accuracy, and allowing the user to quickly and accurately set the torque value.

[0050] The torque adjustment knob 21 has a plurality of positioning holes 25 arranged in a ring around one end of the stop block 20, and the stop block 20 has a plurality of positioning grooves 26 arranged in a ring around one end of the positioning holes 25, and the positioning grooves 26 are provided with elastic positioning beads 27.

[0051] The positioning hole 25 on the torque adjustment knob 21, the positioning groove 26 on the stop block 20, and the elastic positioning bead 27 form a positioning structure, providing precise positioning when adjusting torque. The elastic positioning bead 27 switches between the positioning hole 25 and the positioning groove 26, generating tactile and audible feedback to help the user accurately adjust the torque. Simultaneously, this structure prevents accidental rotation of the torque adjustment knob 21, ensuring stable torque setting and guaranteeing operational reliability and work quality.

[0052] The torque adjustment knob has a tail cap 28 at its rear end, and the torque adjustment knob 21 has anti-slip threads on its outer surface.

[0053] The tail cap 28 at the rear of the torque adjustment knob makes it convenient for users to operate. The anti-slip threads on the outer surface of the torque adjustment knob 21 increase the friction between the knob and the fingers. When adjusting the torque, even if the hands are sweaty or the operating environment is complex, the user can hold the knob firmly and turn it accurately, avoiding slippage and adjustment errors, improving operating comfort and reliability, and making the torque adjustment process smoother and more accurate.

[0054] In this embodiment 2,

[0055] like Figures 1 to 4 As shown, the working principle of this utility model is as follows:

[0056] like Figures 1 to 4 As shown, when using it, hold the torque adjustment knob 21. Because the outer surface of the knob has anti-slip threads, the friction between the fingers and the knob is increased, allowing the user to rotate the knob stably.

[0057] Turning the knob causes the connected adjusting screw 18 to rotate, which in turn pushes the compression nut 19 to move back and forth along the screw. Because the front end of the compression nut 19 contacts the torque spring 10, the movement of the compression nut 19 changes the degree of compression of the torque spring 10. The change in the degree of compression of the torque spring 10, in turn, adjusts the friction between the upper friction plate 7 and the lower friction plate 8, ultimately achieving the adjustment of the torque. (The torque mainly comes from the compression stroke of the torque spring 10 and the friction between the upper friction plate 7 and the lower friction plate 8.)

[0058] During adjustment, the user can observe the position of the indicator pin 24 in the adjustment window 23 at the rear of the handle 2 to understand the torque adjustment range. At the same time, the positioning hole 25 on the torque adjustment knob 21 cooperates with the positioning groove 26 and the elastic positioning bead 27 on the stop block 20. When the elastic positioning bead 27 falls into different positioning holes 25, it will produce obvious tactile feedback and sound, informing the user that a specific adjustment level has been reached, helping the user to accurately set the required torque value.

[0059] like Figures 1 to 4 As shown, when tightening the screw, after setting the torque, insert the appropriate cutting tip into the tool holder 6, aligning the cutting tip with the screw. Hold the handle 2 and apply rotational force; at this point, the torque-actuating element 3 begins to operate. The spring force of the torque spring 10 is transmitted through the central shaft 9 to the upper friction plate 7 and the lower friction plate 8. Because the helical teeth 11 at the adjacent ends of the upper friction plate 7 and the lower friction plate 8 mesh with each other, the frictional force allows the torque to be transmitted stably and accurately. Finally, the torque is transmitted to the cutting tip through the tool holder 6, causing the screw to rotate and perform the tightening operation.

[0060] As the applied rotational force gradually increases, once it exceeds the preset torque value, the helical teeth 11 of the upper friction plate 7 and the lower friction plate 8 will slip and no longer maintain engagement, thereby preventing damage to the screw or the tightened object due to excessive torque and playing an overload protection role.

[0061] like Figures 1 to 4 As shown, when locking and unlocking are required, such as when a fixed torque is needed during tightening to prevent unexpected torque changes, a locking operation can be performed. Sliding the locking sleeve 14 forward causes the locking wall 17 on the inner wall of the locking sleeve 14 to push the locking bead 13 located in the locking hole 15, further clamping the upper friction plate 7, thereby restricting the rotation of the upper friction plate 7 and locking the rotation of the entire screwdriver, thus placing the screwdriver in a locked state.

[0062] When it is necessary to continue adjusting the torque or perform other operations, slide the locking sleeve 14 backward, and the locking bead 13 will enter the unlocking cavity 16, releasing the lock on the screwdriver rotation and restoring normal torque transmission and adjustment functions.

[0063] like Figures 1 to 4 As shown, when it is necessary to remove the screw, first ensure that the screwdriver is in the unlocked position. Hold handle 2, align the screwdriver tip with the screw, and then apply a counter-rotating force. At this time, the helical teeth 11 of the upper friction plate 7 and lower friction plate 8 of the torque component 3 mesh and abut against each other again, providing sufficient friction and torque transmission for reverse rotation, making the screw removal operation easy and smooth.

[0064] In the description of this specification, references are made to the terms "one embodiment", "some embodiments", "example", "specific example".

[0065] The descriptions using terms such as "example" or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the existing technology, and will not be described in detail here.

[0067] The above description is only a preferred embodiment of this utility model. For those skilled in the art, various modifications and variations can be made in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A dual-purpose torque screwdriver, comprising a screwdriver body, characterized in that, The screwdriver body includes: A handle, wherein the handle has an assembly space; A torque element is disposed along the front end of the handle within the assembly space for torque rotation of the screwdriver. A locking component is disposed at the front end of the handle and engages with a torque element for locking the rotation of the screwdriver; A torque adjustment component is disposed within the assembly space along the rear end of the handle and is used to adjust the torque amount of the torque component. A screwdriver holder, which is located at the front end of the handle and connected to the torque element, is used to mount screwdriver bits of different models.

2. The dual-purpose torque screwdriver according to claim 1, characterized in that: The torque component includes an upper friction plate, a lower friction plate, a central shaft passing through the upper and lower friction plates, and a torque spring mounted on the central shaft, arranged sequentially from front to back. The upper and lower friction plates have meshing helical teeth at their proximal ends. A front stop fixing head is provided at the front end of the handle. The torque component is fixedly mounted in the assembly space through the front stop fixing head. The tool holder sleeve passes through the front stop fixing head and is rotatably connected to the upper friction plate.

3. The dual-purpose torque screwdriver according to claim 2, characterized in that: The locking assembly includes a locking bead and a locking sleeve that is slidably connected to the front end of the handle. The front end of the handle has a locking hole along the upper friction plate. The locking bead is disposed in the locking hole and engages with the upper friction plate. The inner wall of the locking sleeve is divided into an unlocking cavity and a locking wall.

4. The dual-purpose torque screwdriver according to claim 3, characterized in that: The torque adjustment assembly includes an adjustment screw, a compression nut disposed at the front end of the adjustment screw and in contact with a torque spring, stops spaced along the compression nut on the adjustment screw, a torque adjustment knob disposed at the rear end of the adjustment screw, and an anti-slip nut disposed inside the torque adjustment knob. The adjustment screw passes through the torque adjustment knob and is fixedly connected by the anti-slip nut.

5. A dual-purpose torque screwdriver according to claim 4, characterized in that: An adjustment window is provided at the rear end of the handle along the compression nut, and an indicator pin is provided extending from the adjustment window along the compression nut.

6. A dual-purpose torque screwdriver according to claim 5, characterized in that: The torque adjustment knob has several positioning holes arranged in a ring at one end of the stop block, and several positioning grooves are arranged in a ring at one end of the stop block along the positioning holes. Elastic positioning beads are provided in the positioning grooves.

7. A dual-purpose torque screwdriver according to claim 6, characterized in that: The torque adjustment knob has a tail cap at its rear end, and anti-slip threads are formed on the outer surface of the torque adjustment knob.

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