Jig and screwdriver assembly
By designing anti-accidental touch covers and jigs with multiple sets of toothed cylindrical parts, the problem of incorrect torque adjustment of electric screwdrivers was solved, achieving stable torque adjustment and cost reduction, and improving product quality and management efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TCL KING ELECTRICAL APPLIANCES HUIZHOU
- Filing Date
- 2022-04-08
- Publication Date
- 2026-07-10
AI Technical Summary
The torque adjustment ring of the electric screwdriver is close to the hand working area, which makes it easy for employees to accidentally touch it, resulting in incorrect torque adjustment and affecting product quality.
Design a fixture including an anti-accidental contact cover and a cylindrical part with multiple sets of teeth, for fitting onto a torque adjustment ring to prevent accidental contact and facilitate torque adjustment, thereby reducing production costs and process difficulty.
It effectively prevents incorrect torque adjustment, maintains stable electric screwdriver torque, reduces production costs and process difficulty, and improves product quality and management efficiency.
Smart Images
Figure CN114643553B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of mechanical technology, and more particularly to a jig and electric screwdriver assembly. Background Technology
[0002] Currently, the torque adjustment ring of electric screwdrivers is close to the hand operating area. When employees hold the electric screwdriver to tighten screws, their hand movements can easily cause them to accidentally touch the torque adjustment ring, resulting in incorrect torque adjustment. If the electric screwdriver torque is set too high, the tightened screw head may strip or the parts may be damaged. If the electric screwdriver torque is set too low, the tightened screw will not be secure, and the tightened parts may also loosen. Therefore, incorrect torque adjustment will ultimately affect the quality of the product. Summary of the Invention
[0003] This application provides a fixture and an electric screwdriver assembly, which can prevent employees from accidentally adjusting the torque of the electric screwdriver during operation, and the torque of the electric screwdriver can be easily adjusted through the fixture.
[0004] In a first aspect, embodiments of this application provide a fixture for use with an electric screwdriver. The electric screwdriver includes a torque adjustment ring and an anti-accidental contact cover. The anti-accidental contact cover is disposed on the torque adjustment ring. The fixture includes a first cylindrical portion with a first hollow region. The first cylindrical portion is used to fit onto the torque adjustment ring. The first cylindrical portion includes a first inner wall facing the first hollow region. Multiple sets of first teeth are spaced apart on the first inner wall. The multiple sets of first teeth have the same axis and are used to adjust the torque adjustment ring.
[0005] Optionally, the first inner wall is provided with three sets of the first teeth, and the three sets of the first teeth are evenly distributed on the first inner wall.
[0006] Optionally, the number of teeth in each group of the first tooth pattern is between 5 and 10.
[0007] Optionally, the fixture further includes a second cylindrical portion connected to the first cylindrical portion. The second cylindrical portion has a second hollow region and is used to fit onto the torque adjusting ring. The second cylindrical portion includes a second inner wall facing the second hollow region. Multiple sets of second teeth are spaced apart on the second inner wall. The axes of the multiple sets of second teeth are the same, and the radii of the second inner wall and the first inner wall are different, so that the multiple sets of first teeth and the multiple sets of second teeth can adjust the torque adjusting rings of different sizes.
[0008] Optionally, the fixture further includes a third cylindrical portion connected to the first cylindrical portion and the second cylindrical portion. The third cylindrical portion has a third hollow region and is used to fit the torque adjusting ring. The third cylindrical portion includes a third inner wall facing the third hollow region. Multiple sets of third teeth are spaced apart on the third inner wall. The axes of the multiple sets of third teeth are the same, and the radii of the third inner wall, the second inner wall, and the first inner wall are different, so that the multiple sets of third teeth, the multiple sets of second teeth, and the multiple sets of first teeth can adjust the torque adjusting rings of different sizes.
[0009] Optionally, the second cylindrical portion and the third cylindrical portion extend in the same direction, and the first cylindrical portion extends perpendicularly to the second cylindrical portion.
[0010] Optionally, the first cylindrical portion, the second cylindrical portion, and the third cylindrical portion are fixedly connected; or the first cylindrical portion, the second cylindrical portion, and the third cylindrical portion are detachably connected.
[0011] Optionally, the fixture further includes a connecting seat, to which the first cylindrical portion, the second cylindrical portion, and the third cylindrical portion are connected.
[0012] Secondly, embodiments of this application provide an electric screwdriver assembly, comprising:
[0013] An electric screwdriver includes a torque adjusting ring and an anti-accidental contact cover, wherein the anti-accidental contact cover is disposed on the torque adjusting ring, and there is a gap between the anti-accidental contact cover and the torque adjusting ring;
[0014] The fixture is any one of the fixtures described in the above embodiments, and the fixture is used to adjust the torque adjustment ring.
[0015] Optionally, the electric screwdriver further includes a handle, which comprises a first part and a second part, and the anti-accidental contact cover locks the first part and the second part together.
[0016] In this embodiment, the electric screwdriver includes a torque adjustment ring and an anti-accidental contact cover. The anti-accidental contact cover is disposed over the torque adjustment ring, thus preventing employees from accidentally touching the torque adjustment ring during operation, thereby preventing employees from accidentally adjusting the torque of the electric screwdriver and ensuring that the electric screwdriver maintains a suitable torque. Since the torque adjustment ring is disposed inside the anti-accidental contact cover, this embodiment provides a fixture for conveniently adjusting the torque adjustment ring, avoiding frequent disassembly and reassembly of the anti-accidental contact cover. Specifically, the fixture includes a first cylindrical portion with a hollow area, which is used to fit over the torque adjustment ring. That is, the fixture can conveniently adjust the torque of the torque adjustment ring through the gap between the anti-accidental contact cover and the torque adjustment ring. Furthermore, the first cylindrical portion includes a first inner wall facing the hollow region. The first inner wall is provided with multiple sets of spaced first teeth. The axes of the multiple sets of first teeth are the same. Therefore, it is not necessary to provide a full circle of first teeth on the first inner wall of the first cylindrical portion, which reduces the number of teeth that the fixture needs to be cleaned. This reduces both the production cost of the fixture and the difficulty of manufacturing the fixture. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the first structure of the electric screwdriver provided in an embodiment of this application.
[0019] Figure 2 This is a schematic diagram of a second structure of an electric screwdriver provided in an embodiment of this application.
[0020] Figure 3 This is a schematic diagram of the first structure of the fixture provided in the embodiments of this application.
[0021] Figure 4 This is a schematic diagram of a second structure of the fixture provided in an embodiment of this application.
[0022] Figure 5 This is a schematic diagram of the structure of the third type of fixture provided in the embodiments of this application.
[0023] Figure 6 This is a schematic diagram of the structure of the electric screwdriver assembly provided in the embodiments of this application. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.
[0025] In this document, references to "embodiment" or "implementation" mean that a particular feature, component, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0026] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the first structure of the electric screwdriver provided in the embodiments of this application. Figure 2 This is a schematic diagram of a second structure of an electric screwdriver provided in an embodiment of this application. Figure 3 This is a schematic diagram of a first structure of the fixture provided in an embodiment of this application. Figure 1 The anti-accidental touch cover 120 of the CEC100 does not have a torque adjustment ring 110. Figure 2 The anti-accidental touch cover 120 of the CEC100 is installed on the torque adjustment ring 110.
[0027] In existing technology, electric screwdrivers may include a handle, a front locking ring, and a torque adjustment ring. The handle is where the employee holds the screwdriver during operation. The handle is divided into a first part and a second part, which are locked together by the front locking ring. The torque of the screwdriver can be adjusted by rotating the torque adjustment ring. However, because the torque adjustment ring is close to the hand working part, when the employee holds the screwdriver to tighten screws, their hand movements can easily accidentally touch the torque adjustment ring, causing incorrect torque adjustment. If the screwdriver torque is adjusted too high, the tightened screw head may strip or the parts may be damaged. If the screwdriver torque is adjusted too low, the tightened screws may not be secure, and the tightened parts may also loosen. Therefore, incorrect torque adjustment ultimately affects product quality and does not meet the requirements of factory 6S management and system management.
[0028] In this embodiment, the electric screwdriver 100 includes a torque adjustment ring 110 and an anti-accidental contact cover 120. The anti-accidental contact cover 120 covers the torque adjustment ring 110, thus preventing employees from accidentally touching the torque adjustment ring 110 during operation, thereby preventing employees from accidentally adjusting the torque of the electric screwdriver 100 and ensuring that the electric screwdriver 100 maintains a suitable torque. By replacing the front locking ring with the anti-accidental contact cover 120, the purpose of locking the two parts of the handle 130 can be achieved, and the torque adjustment ring 110 can also be covered. For example, after the anti-accidental contact cover 120 locks the two parts of the handle 130, a set screw can be added for further tightening to prevent the anti-accidental contact cover 120 from loosening.
[0029] When changing machine models or tightening different screws, the required torque of the electric screwdriver 100 will differ. Since the torque adjustment ring 110 is housed inside the anti-accidental contact cover 120, when adjusting the torque of the electric screwdriver 100, it is necessary to first remove the anti-accidental contact cover 120, then adjust the torque adjustment ring 110 of the electric screwdriver 100 to the appropriate torque, and finally restore the anti-accidental contact cover 120 and locking the handle 130. This process is cumbersome, inefficient, and the frequent disassembly and installation of the anti-accidental contact cover 120 can easily damage the cover, and parts such as set screws are also prone to stripping and damage.
[0030] Therefore, this application provides a fixture 200 that can be used to conveniently adjust the torque adjustment ring 110, avoiding frequent disassembly and installation of the anti-accidental touch cover 120. Specifically, the fixture 200 includes a first cylindrical portion 210, which has a first hollow region 211. The first cylindrical portion 210 is used to fit onto the torque adjustment ring 110, that is, the fixture 200 can conveniently adjust the torque of the torque adjustment ring 110 through the gap between the anti-accidental touch cover 120 and the torque adjustment ring 110. Furthermore, the first cylindrical portion 210 includes a first inner wall 212 facing the first hollow region 211. The first inner wall 212 has multiple sets of spaced-apart first teeth 213, all with the same axis. For example, the multiple sets of spaced-apart first teeth 213 can be located at or near the end of the first inner wall 212. Moreover, the multiple sets of spaced-apart first teeth 213 on the first inner wall 212 match the teeth of the torque adjustment ring 110 of the electric screwdriver 100, so that the first cylindrical portion 210 of the fixture 200 can be used to adjust the torque of the torque adjustment ring 110 after being fitted onto it. In this embodiment, the first inner wall 212 has multiple sets of spaced-apart first teeth 213, eliminating the need for a full circle of first teeth 213. This reduces the number of teeth that the fixture 200 needs to be cleaned, thus lowering both the production cost and the manufacturing difficulty of the fixture 200.
[0031] In one embodiment, three sets of first teeth 213 may be provided on the first inner wall 212, and the three sets of first teeth 213 are evenly distributed on the first inner wall 212.
[0032] In one embodiment, the number of teeth in each group of first teeth 213 is between 5 and 10.
[0033] For example, the torque adjustment ring 110 of the electric screwdriver 100 has 60 teeth. If the first teeth 213 on the first inner wall 212 correspond one-to-one with the teeth on the torque adjustment ring 110, then the required number of teeth for the first teeth 213 is also 60. However, in this embodiment, to ensure that the fixture 200 can meet the torque adjustment requirements, the number of first teeth 213 is minimized. The first inner wall 212 is provided with multiple sets of spaced first teeth 213, and it is not necessary to provide first teeth 213 around the entire circumference. For example, the first inner wall 212 is provided with three sets of evenly distributed first teeth 213, each set of first teeth 213 having 5 teeth, then a total of 15 teeth of first teeth 213 need to be provided on the first inner wall 212. It should be noted that stress and displacement tests were conducted on the jig 200, which has three sets of evenly distributed first tooth patterns 213, each set of first tooth patterns 213 having 5 teeth. The results showed that it can meet the requirements for normal torque adjustment.
[0034] Therefore, if the torque adjustment ring 110 has 60 teeth, compared to the requirement of setting 60 teeth for the first tooth pattern 213 for one-to-one matching, only 15 teeth of the first tooth pattern 213 need to be set in this embodiment, which greatly reduces the number of teeth that need to be cleaned when making the jig 200 and reduces the production cost of the jig 200.
[0035] For example, the market price of each tooth is about 5 yuan / tooth. If the number of teeth is reduced from 60 to 15, it is estimated that each jig 200 can save 225 yuan / piece, which greatly reduces the production cost of jig 200. Therefore, the jig 200 of this application embodiment has cost control advantages.
[0036] Understandably, the first tooth pattern 213 of the jig 200 is small in size, requiring high manufacturing precision. Furthermore, the first tooth pattern 213 is located on the first inner wall 212 of the first cylindrical portion 210, making its manufacture difficult. The more teeth a jig has, the more easily it is damaged during lathe machining. Therefore, this embodiment of the application can minimize the number of first teeth pattern 213, for example, reducing it from 60 teeth to 15 teeth, while ensuring that the jig 200 can meet the torque adjustment requirements. This significantly reduces the manufacturing difficulty of the jig 200.
[0037] For example, the three sets of first teeth 213 provided on the first inner wall 212 can be evenly distributed on the first inner wall 212, so that when the jig 200 is adjusting the torque, the first cylindrical part 210 is subjected to uniform force and the adjustment is more stable.
[0038] It should be noted that an appropriate number of first teeth 213 can be set on the first inner wall 212 as needed, such as three groups, two groups, or four groups. The number of teeth in each group of first teeth 213 can also be adjusted as needed, such as 5 teeth, 4 teeth, 6 teeth, etc.
[0039] Currently, different electric screwdrivers 100 are used at different workstations on the production line. The screwdriver bits of different electric screwdrivers 100 have different sizes. For example, the commonly used bit diameters are 30.8mm, 24.8mm, and 22.8mm. Different bit sizes correspond to different torque adjustment rings 110. If a fixture 200 is designed for each type of bit, it will result in too many fixtures 200 and make them difficult to manage.
[0040] Please refer to Figure 4 , Figure 4 This is a schematic diagram of a second structure of the fixture provided in an embodiment of this application. In one embodiment, to enable the fixture 200 to be compatible with different bits and to allow the fixture 200 to be used to adjust torque adjustment rings 110 of different sizes, the fixture 200 may have a second cylindrical portion 220 in addition to the first cylindrical portion 210, and the second cylindrical portion 220 is connected to the first cylindrical portion 210. Specifically, the second cylindrical portion 220 has a second hollow region 221, and the second cylindrical portion 220 is used to fit onto the torque adjustment ring 110; the second cylindrical portion 220 includes a second inner wall 222 facing the second hollow region 221, and the second inner wall 222 has multiple sets of second teeth 223, any two sets of second teeth 223 are spaced apart, and the axes of the multiple sets of second teeth 223 are the same. It is understood that the structure of the second cylindrical portion 220 is similar to that of the first cylindrical portion 210, and the structure of the second cylindrical portion 220 can be referred to the structure of the first cylindrical portion 210, which will not be described again here.
[0041] However, the radii corresponding to the second inner wall 222 and the first inner wall 212 are different, so that multiple sets of first teeth and multiple sets of second teeth 223 can adjust torque adjustment rings 110 of different sizes. In the embodiments of this application, the fixture 200 has a first cylindrical portion 210 and a second cylindrical portion 220, wherein the first cylindrical portion 210 is used to adjust a first type of electric screwdriver, and the second cylindrical portion 220 is used to adjust a second type of electric screwdriver. This allows a fixture 200 to be compatible with two types of electric screwdrivers, wherein different electric screwdrivers 100 correspond to different bit sizes, and different bit sizes correspond to different sizes of torque adjustment rings 110. For example, the first cylindrical portion 210 can be used to adjust the first type of electric screwdriver 100, and the bit diameter of the first type of electric screwdriver 100 can be 30.8 mm; the second cylindrical portion 220 can be used to adjust the second type of electric screwdriver 100, and the bit diameter of the second type of electric screwdriver 100 can be 24.8 mm. Therefore, the fixture in this application embodiment can meet the needs of adjusting two sizes of torque adjustment rings, reducing the number of fixtures required on the production line, avoiding fixture chaos, and facilitating management.
[0042] For example, the first cylindrical portion 210 is connected to the second cylindrical portion 220. The extension directions of the first cylindrical portion 210 and the second cylindrical portion 220 can be the same, or the extension direction of the second cylindrical portion 220 can be perpendicular to the first cylindrical portion 210, or the extension directions of the first cylindrical portion 210 and the second cylindrical portion 220 can be at an angle. For example, the connection structure of the first cylindrical portion 210 and the second cylindrical portion 220 can be in the shape of an "I", "V", "L", etc., so as to facilitate employees to use different cylindrical portions of the fixture 200 to adjust the torque of different electric screwdrivers 100.
[0043] Please refer to Figure 5 , Figure 5 This is a schematic diagram of the structure of the third type of fixture provided in this application embodiment. In addition to the first cylindrical portion 210 and the second cylindrical portion 220, the fixture 200 also has a third cylindrical portion 230, which is connected to the first cylindrical portion 210 and the second cylindrical portion 220. Specifically, the third cylindrical portion 230 has a third hollow region 231 and is used to fit onto the torque adjusting ring 110. The third cylindrical portion 230 includes a third inner wall 232 facing the third hollow region 231, and the third inner wall 232 has multiple sets of third teeth 233, with any two sets of third teeth 233 spaced apart, and the axes of the multiple sets of third teeth 233 are the same. It can be understood that the structure of the third cylindrical portion 230 is similar to that of the first cylindrical portion 210 and the second cylindrical portion 220, and the structure of the third cylindrical portion 230 can be referred to the structure of the first cylindrical portion 210, which will not be described again here.
[0044] However, the radii of the third inner wall, the second inner wall 222 and the first inner wall 212 are different, so that multiple sets of third teeth 233, multiple sets of second teeth 223 and multiple sets of first teeth 213 can adjust the torque adjustment ring 110 of different sizes.
[0045] In this embodiment, the fixture 200 has a first cylindrical portion 210, a second cylindrical portion 220, and a third cylindrical portion 230. The first cylindrical portion 210 is used to adjust a first type of electric screwdriver 100, the second cylindrical portion 220 is used to adjust a second type of electric screwdriver 100, and the third cylindrical portion 230 is used to adjust a third type of electric screwdriver 100. Different electric screwdrivers 100 correspond to different bit sizes, and different bit sizes correspond to different sizes of torque adjustment rings 110. For example, the first cylindrical portion 210 can be used to adjust the first type of electric screwdriver 100, and the bit diameter of the first type of electric screwdriver 100 can be 30.8 mm; the second cylindrical portion 220 can be used to adjust the second type of electric screwdriver 100, and the bit diameter of the second type of electric screwdriver 100 can be 24.8 mm; the third cylindrical portion 230 can be used to adjust the third type of electric screwdriver 100, and the bit diameter of the third type of electric screwdriver 100 can be 22.8 mm. Understandably, these three types of electric screwdrivers 100 are commonly used on production lines. By designing the fixture 200 with three cylindrical sections of different sizes, i.e., a fixture 200 with a three-way structure, the torque of the three commonly used electric screwdrivers 100 can be adjusted, further reducing the number of fixtures required on the production line, avoiding fixture chaos, and facilitating management.
[0046] The third cylindrical portion 230 is connected to the first cylindrical portion 210 and the second cylindrical portion 220. For example, the connection structure of the first cylindrical portion 210, the second cylindrical portion 220, and the third cylindrical portion 230 can be "T" shaped. For example, the second cylindrical portion 220 and the third cylindrical portion 230 extend in the same direction, and the first cylindrical portion 210 extends perpendicularly to the second cylindrical portion 220; or the first cylindrical portion 210 and the second cylindrical portion 220 extend in the same direction, and the third cylindrical portion 230 extends perpendicularly to the first cylindrical portion 210; or the first cylindrical portion 210 and the third cylindrical portion 230 extend in the same direction, and the second cylindrical portion 220 extends perpendicularly to the first cylindrical portion 210. Of course, the connection structure of the first cylindrical part 210, the second cylindrical part 220 and the third cylindrical part 230 can also be "Y" shaped or other connection structures, so as to facilitate employees to use different cylindrical parts of the fixture 200 to adjust the torque of different electric screwdrivers 100.
[0047] It should be noted that, depending on the needs, the fixture 200 may also have a fourth cylindrical portion. The structure of the fourth cylindrical portion can refer to the structure of the first cylindrical portion 210, and will not be described again here. The fourth inner wall of the fourth cylinder has a different radius than the third inner wall 232, the second inner wall 222, and the first inner wall 212, so that the fourth cylinder can be used to adjust a torque adjusting ring 110 of another size. The fourth cylindrical portion can be connected to the first cylindrical portion 210, the second cylindrical portion 220, and the third cylindrical portion 230. For example, the connection structure of the first cylindrical portion 210, the second cylindrical portion 220, the third cylindrical portion 230, and the fourth cylindrical portion can be a cross shape or other connection structure.
[0048] For example, the first cylindrical portion 210, the second cylindrical portion 220 and the third cylindrical portion 230 can be fixedly connected; or the first cylindrical portion 210, the second cylindrical portion 220 and the third cylindrical portion 230 can be detachably connected.
[0049] For example, the fixture 200 also includes a connecting seat 240, to which the first cylindrical portion 210, the second cylindrical portion 220, and the third cylindrical portion 230 are connected. The first cylindrical portion 210, the second cylindrical portion 220, and the third cylindrical portion 230 can be fixedly connected to the connecting seat 240 or detachably connected. When the first cylindrical portion 210, the second cylindrical portion 220, and the third cylindrical portion 230 of the fixture 200 are detachably connected, the three-way structure of the fixture 200 allows for easy replacement of different cylindrical portions according to the needs of the production line. For example, the third cylindrical portion 230 can be replaced with a fourth cylindrical portion as needed, resulting in the fixture 200 having a first cylindrical portion 210, a second cylindrical portion 220, and a fourth cylindrical portion. Alternatively, when one of the cylindrical portions is damaged, it can be easily replaced.
[0050] Please refer to Figure 6 , Figure 6 This is a schematic diagram of the structure of an electric screwdriver assembly provided in an embodiment of this application. This application also provides an electric screwdriver assembly, which includes an electric screwdriver 100 and a fixture 200. The electric screwdriver 100 includes a torque adjustment ring 110 and an anti-accidental contact cover 120. The anti-accidental contact cover 120 is disposed over the torque adjustment ring 110, and a gap exists between the anti-accidental contact cover 120 and the torque adjustment ring 110. Because the anti-accidental contact cover 120 is disposed over the torque adjustment ring 110, it can prevent employees from accidentally touching the torque adjustment ring 110 of the electric screwdriver 100 during operation, thereby preventing employees from accidentally adjusting the torque of the electric screwdriver 100 during operation, and ensuring that the electric screwdriver 100 maintains appropriate torque.
[0051] The jig 200 can conveniently adjust the torque of the torque adjustment ring 110 through the gap between the anti-accidental contact cover 120 and the torque adjustment ring 110. The structure of the jig 200 can be referred to in any of the above embodiments, and the structure of the jig 200 will not be described again here.
[0052] In one embodiment, the electric screwdriver 100 further includes a handle 130, which includes a first part and a second part. An anti-accidental touch cover 120 locks the first part and the second part together. After the anti-accidental touch cover 120 locks the two parts of the handle 130 together, a set screw can also be locked at the screw-on connection of the handle 130 to prevent the anti-accidental touch cover 120 from loosening.
[0053] The jig and electric screwdriver assembly provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. An electric screwdriver assembly, characterized in that, include: An electric screwdriver includes a torque adjustment ring and an anti-accidental touch cover, wherein the anti-accidental touch cover is disposed on the torque adjustment ring, and there is a gap between the anti-accidental touch cover and the torque adjustment ring. The electric screwdriver also includes a handle, wherein the handle includes a first part and a second part, and the anti-accidental touch cover is used to lock the first part and the second part together. A fixture is provided, wherein the fixture adjusts the torque of the torque adjustment ring by means of the gap between the anti-accidental contact cover and the torque adjustment ring. The fixture includes a first cylindrical portion, the first cylindrical portion having a first hollow region, the first cylindrical portion being used to fit the torque adjustment ring; the first cylindrical portion includes a first inner wall facing the first hollow region, the first inner wall having multiple sets of first teeth spaced apart, the multiple sets of first teeth having the same axis, the multiple sets of first teeth being used to adjust the torque adjustment ring.
2. The electric screwdriver assembly according to claim 1, characterized in that, The first inner wall is provided with three sets of the first teeth, and the three sets of the first teeth are evenly distributed on the first inner wall.
3. The electric screwdriver assembly according to claim 1, characterized in that, The number of teeth in the first tooth pattern of each group is between 5 and 10.
4. The electric screwdriver assembly according to any one of claims 1-3, characterized in that, The fixture further includes a second cylindrical portion connected to the first cylindrical portion. The second cylindrical portion has a second hollow region and is used to fit the torque adjusting ring. The second cylindrical portion includes a second inner wall facing the second hollow region. Multiple sets of second teeth are spaced apart on the second inner wall. The axes of the multiple sets of second teeth are the same, and the radii of the second inner wall and the first inner wall are different, so that the multiple sets of first teeth and the multiple sets of second teeth can adjust the torque adjusting rings of different sizes.
5. The electric screwdriver assembly according to claim 4, characterized in that, The fixture further includes a third cylindrical portion connected to the first cylindrical portion and the second cylindrical portion. The third cylindrical portion has a third hollow region and is used to fit the torque adjusting ring. The third cylindrical portion includes a third inner wall facing the third hollow region. Multiple sets of third teeth are spaced apart on the third inner wall. The axes of the multiple sets of third teeth are the same, and the radii of the third inner wall, the second inner wall, and the first inner wall are different, so that the multiple sets of third teeth, the multiple sets of second teeth, and the multiple sets of first teeth can adjust the torque adjusting rings of different sizes.
6. The electric screwdriver assembly according to claim 5, characterized in that, The second cylindrical portion and the third cylindrical portion extend in the same direction, and the first cylindrical portion extends in a direction perpendicular to the second cylindrical portion.
7. The electric screwdriver assembly according to claim 5, characterized in that, The first cylindrical portion, the second cylindrical portion, and the third cylindrical portion are fixedly connected; or the first cylindrical portion, the second cylindrical portion, and the third cylindrical portion are detachably connected.
8. The electric screwdriver assembly according to claim 5, characterized in that, The fixture further includes a connecting seat, through which the first cylindrical portion, the second cylindrical portion, and the third cylindrical portion are connected, wherein the outer diameter of the connecting seat is larger than the outer diameter of the first cylindrical portion.