Quick-change locking device

Abstract

This utility model provides a quick-change locking device, including a first locking bit and an adapter. The rear end of the first locking bit is used to connect with a clamping tool, and the front end is provided with a locking working part. The rear end of the adapter is detachably connected to the first locking bit, and the rear end face of the adapter has a insertion groove for connecting with the locking working part, while the front end face of the adapter has a locking hole for fixing a wrench or a fastening screw. The first locking bit and the adapter of this quick-change locking device can simultaneously install other locking accessories and directly lock, making it versatile and enabling quick conversion between tools of different specifications.

Description

Technical Field

[0001] This utility model belongs to the field of locking and fastening tools, specifically relating to a quick-change locking and fastening device. Background Technology

[0002] In the field of sheet metal fabrication, products are typically assembled from multiple sheet metal parts. The connection and fastening process between these parts directly determines the product's assembly efficiency, structural stability, and performance. Its applications are widespread, covering automotive parts, appliance housings, industrial equipment frames, and many other fields. Currently, the mainstream part connection methods in the industry mostly rely on metal fasteners such as bolts, rivets, and self-tapping screws. While these methods can achieve basic connection functions, they require the design of corresponding fastening hole positions for different part specifications. Furthermore, tools such as wrenches and screwdrivers are needed during assembly to install and tighten the fasteners, making the overall process quite cumbersome. It's common for different types of screws to be fastened to the same product in the same process. When encountering products on the same plane requiring different types of screws, the fastening heads must be changed according to the product structure, or multiple electric screwdrivers or clamps must be used for separate processing multiple times. Frequent changes of electric screwdrivers or fastening heads affect overall efficiency, are inconvenient to manage, and result in low production efficiency.

[0003] As the manufacturing industry moves towards higher efficiency and lower costs, traditional locking devices have revealed their limitations. Therefore, a universal locking structure is of great significance to the current processing field. In particular, if the locking device can be adapted to the characteristics of the product and its processing requirements, it can further resolve bottlenecks in the production locking process.

[0004] At the same time, if the locking product has a quick conversion effect, it can effectively improve the product locking efficiency and meet the product performance requirements.

[0005] Therefore, it is evident that providing a locking device that can balance versatility and quick conversion is a problem that urgently needs to be solved by those in the relevant technical field. Summary of the Invention

[0006] To address the shortcomings of the prior art, this utility model provides a quick-change locking device. The first locking bit and adapter of this quick-change locking device can simultaneously install other locking accessories and directly lock, making it versatile and enabling quick conversion between tools of different specifications.

[0007] The technical effects to be achieved by this utility model are realized through the following technical aspects: This utility model provides a quick-change locking device, including... A first locking bit, the rear end of which is used to connect with a clamping tool, and the front end of which is provided with a locking working section; and The adapter has a rear end that is detachably connected to the first locking bit, and the rear end face of the adapter has a insertion groove for connecting with the locking working part, and the front end face of the adapter has a locking hole for fixing a wrench or a fastening screw.

[0008] In some implementations, the horizontal cross-section of the locking channel is hexagonal to secure or tighten hexagonal screws with a hexagonal wrench.

[0009] In some implementations, the first locking bit includes a bit body, the locking working part is connected to the front end of the bit body, the locking working part is provided with a first connecting hole and a working block, the working block is inserted into the insertion slot, and the first connecting hole is used to connect with the rear end of the adapter or the locking accessory of the locking guide pin.

[0010] In some implementations, the front end of the work block is provided with a U-shaped groove, which is recessed from the front end of the work block toward the rear end.

[0011] In some implementations, the work block is a magnetic work block.

[0012] In some implementations, the connecting part includes a base, which connects the bit body and the working block. The first connecting hole is formed on the base, and the thickness of the base is less than the thickness of the bit body and the thickness of the working block is less than the thickness of the base.

[0013] In some implementations, a second connecting hole is provided on the outer surface of the adapter, and a first fastener is provided between the second connecting hole and the first connecting hole.

[0014] In some implementations, the outer surface of the adapter is further provided with a third connecting hole, which communicates with the locking channel and is connected to a second fastener. The second fastener is a ball joint, or both the second fastener and the first fastener are ball joints.

[0015] In some implementations, the rear end of the first locking bit is provided with a retaining ring for clamping with an electric screwdriver.

[0016] In some implementations, a second locking bit is also included, which is connected to the locking channel.

[0017] In summary, this utility model has at least the following advantages: This utility model provides a quick-change locking device. The locking working part of its first locking bit can be used to connect to an adapter or to perform locking itself. When the locking working part of the first locking bit is insufficient, other specifications of the device can be replaced with the adapter. The adapter has locking channels that can be used to fix other second locking bits, such as wrenches, or to tighten screws through the cross-section of the locking channels. In other words, the adapter serves both as an adapter and a locking device, effectively reducing manufacturing costs and waste, and providing versatility. Attached Figure Description

[0018] Figure 1 A schematic diagram of the assembly structure of the quick-change locking device provided in Embodiment 1 of this utility model; Figure 2 An exploded view of the locking device for quick conversion provided in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the structure of the first locking bit provided in Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the structure of the adapter provided in Embodiment 1 of this utility model; Figure 5 A cross-sectional view of the adapter provided in Embodiment 1 of this utility model; Figure 6 This is a schematic diagram of the structure of the first locking bit provided in Embodiment 2 of this utility model; Figure 7 This is a schematic diagram of the structure of the adapter provided in Embodiment 3 of this utility model; Figure 8 This is a schematic diagram of the assembly structure of the quick-change locking device provided in Embodiment 3 of this utility model.

[0019] Marked in the image: 100. First locking bit; 110. Locking operation section; 120. Bit body; 111. First connecting hole; 112. Working block; 101. Base; 102. Snap ring; 200, Adapter; 210, Insertion slot; 220, Locking channel; 201, Second connecting hole; 202, First fastener; 203, Third connecting hole; 204, Second fastener; 300. Second locking bit. Detailed Implementation

[0020] To facilitate understanding of the present invention, a more comprehensive description will be given below in conjunction with the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0024] For ease of understanding, it should be noted that the X-axis in the graph represents the horizontal direction, the Y-axis represents the vertical direction, and the Z-axis represents the vertical direction.

[0025] Example 1: Reference Figures 1 to 5 This embodiment provides a quick-change locking device, which includes a first locking bit 100 and an adapter 200. The first locking bit 100 can be used for locking, or it can be connected to other locking bits in conjunction with the adapter 200 or locking can be achieved by the adapter 200 itself.

[0026] Specifically, Figure 1 A schematic diagram of the assembly structure of a quick-change locking device is provided. Figure 2 An exploded structural diagram of a quick-change locking device is provided. Figure 3 A schematic diagram of the first locking bit is provided. Please refer to it. Figures 1 to 3The rear end of the first locking bit 100 is used to clamp a tool, such as an electric screwdriver, and the front end of the first locking bit 100 is provided with a locking working part 110. The rear end of the first locking bit 100 and the electric screwdriver can be connected by a snap ring or a clamp, etc., and no specific limitation is made in this embodiment.

[0027] The fastening section 110 of the first fastening bit 100 is used to connect with the adapter 200. Figure 4 A structural diagram of the adapter is provided for reference. Figures 1 to 4 The rear end of the adapter 200, near the locking operation section 110, is detachably connected to the first locking bit 100. The end face of the rear end of the adapter 200 has a insertion groove 210 for connecting to the locking operation section 110. Simultaneously, the front end of the adapter 200 has a locking channel 220 for fixing a wrench or screw. The cross-sectional shape of the locking channel 220 is adapted to the shape of the wrench or screw; understandably, the shape of the wrench or screw here refers to the shape of the structure used to connect with the locking channel.

[0028] Therefore, a quick-change locking device can perform locking operations on the installed product using the locking operation section 110 of the first locking bit 100 when the adapter 200 is not installed. When it is necessary to convert to other types of locking structures, the locking operation section 110 of the first locking bit 100 can be connected to the adapter 200.

[0029] Figure 4 and Figure 5 The structural schematic diagram and cross-sectional view of the adapter in this embodiment are given respectively, in conjunction with reference. Figures 1 to 5 The adapter 200 has a locking channel 220 at its front end. The locking channel 220 has a locking function; when the shape of the screw matches the inner diameter of the locking channel 220, it can be used to lock the screw. In addition, the locking channel 220 can also be used to fix other locking bits, such as wrenches, to achieve other types of locking. Therefore, the adapter 200 combines locking and conversion functions, effectively reducing the manufacturing cost of locking devices, minimizing waste, and possessing versatility.

[0030] In this embodiment, the locking channel 220 is a channel formed on the central axis of the adapter 200. Its horizontal cross-section is hexagonal, which can act on the outer diameter of the hexagonal screw to achieve locking. It can also be fixed with a hexagonal wrench to tighten the hexagonal screw.

[0031] Further, please refer to Figure 3The first locking bit 100 includes a bit body 120. The bit body 120 is approximately cylindrical, with its rear end for connection to an electric screwdriver and its front end serving as a locking operation section 110. The locking operation section 110 has a first connecting hole 111 and a working block 112. The working block 112 can be in the shape of a conventional locking bit, such as a slotted, Phillips, or polygonal bit. The working block is inserted into the insertion slot 210 of the adapter 200, and the first connecting hole 111 of the first locking bit 100 connects to the rear end of the adapter 200, completing the connection and conversion between the first locking bit 100 and the adapter 200. It is understood that the first connecting hole 111 is not limited to connecting to the adapter 200; it can also be used to connect to a locking accessory for a locking guide pin.

[0032] Preferably, the working block 112 can be used for fastening slotted screws. In this embodiment, the front end of the working block 112 is provided with a U-shaped groove, which is recessed from the front end of the working block 112 towards the rear end. On the one hand, the slotted working block 112 facilitates the insertion between the first fastening bit 100 and the adapter 200; on the other hand, the slotted working block 112 has high versatility.

[0033] Furthermore, the working block 112 is a magnetic working block. The working block 112 can be made of magnetic material itself, or it can have additional magnetic components added, thereby improving the adhesion between the first locking bit 100 and the product to be locked, making the locking process more labor-saving and time-saving. In addition, the design of the magnetic working block also helps to increase the structural strength of the connection between the first locking bit 100 and the adapter 200.

[0034] It should be noted in detail that, to facilitate easy detachment and reassembly between the adapter 200 and the first locking bit 100, the first locking bit 100 includes a base 101. The base 101 connects the bit body 120 and the working block 112. A first connecting hole 111 is formed on the base 101. The thickness of the base 101 is less than the thickness of the bit body 120, and the thickness of the working block 112 is less than the thickness of the base 101. In this embodiment, the base 101 and the working block 112 are approximately block-shaped structures, and the thicknesses of the bit body 120, the base 101, and the working block 112 decrease in a progressively smaller relationship. When the adapter 200 is connected to the first locking bit 100, the adapter 200 encloses the base 101, the working block 112, and part of the bit body 120 to ensure a tight connection. In this embodiment, the adapter 200 has an overall cylindrical shape.

[0035] Furthermore, the outer surface of the adapter 200 is provided with symmetrically arranged second connecting holes 201, which communicate with the insertion slot 210 and are symmetrically arranged on both sides of the insertion slot 210. When the adapter 200 is connected to the first locking bit 100, the second connecting holes 201 are opposite to the first connecting holes 111, and a first fastener 202 is provided between the second connecting holes 201 and the first connecting holes 111. The first fastener 202 passes through the space between the first connecting hole 111 and the second connecting hole 201 to fix the adapter 200 and the first locking bit 100 together.

[0036] Preferably, the outer surface of the adapter 200 is further provided with a third connecting hole 203. The third connecting hole 203 is symmetrically arranged on both sides of the locking channel 220 and communicates with the locking channel 220 to fix the bit located in the locking channel 220. The third connecting hole 203 is connected to a second fastener 204, which is located on both sides of the locking channel 220 to form a clamping effect on the internal bit. In this embodiment, for ease of disassembly and replacement, the second fastener 204 is preferably a ball-end engagement member. The ball-end engagement member is a fastener with a protruding spherical structure on the side near the adapter 200. Similarly, the first fastener 202 can also be a ball-end engagement member to achieve a stable and detachable connection between the adapter 200 and the first locking bit 100. In particular, the base 101 is thinner than the bit body 120, which also provides space for the ball-end engagement member to engage elastically.

[0037] In summary, this embodiment provides a quick-change locking device. The locking operation section 110 of the first locking bit 100 can be used to connect to the adapter 200, or it can also be used as the locking operation section 110 for locking. When the locking operation section 110 of the first locking bit 100 is insufficient for locking, the adapter 200 can be used to replace it with a device of other specifications. The adapter 200 is provided with a locking channel 220, which can be used to fix other second locking bits 300, such as wrenches, and can also be used to lock screws through the cross-section of the locking channel. That is, the adapter 200 serves both as an adapter and a locking device, effectively reducing the manufacturing cost of the locking device, reducing waste, and providing versatility.

[0038] Example 2: This embodiment makes further structural optimizations based on Embodiment 1. Please refer to... Figures 1-5 Based on the above, refer to Figure 6 , Figure 6 A schematic diagram of the structure of the first locking bit in this embodiment is provided.

[0039] In some embodiments, the rear end of the first locking bit 100 is provided with a retaining ring 102 for clamping with an electric screwdriver. The retaining ring 102 is an annular structure formed by recessing inward from the outer surface of the first locking bit 100, which helps the first locking bit 100 to be inserted into the structure of the electric screwdriver and realizes quick switching between the locking device and the electric screwdriver.

[0040] Example 3: This embodiment makes further structural optimizations based on Embodiment 1. Please refer to... Figures 1-5 Based on the above, refer to Figure 7 and Figure 8 .in, Figure 7 A structural schematic diagram of the adapter provided in this embodiment is given; Figure 8 A schematic diagram of the assembly structure of the quick-change locking device provided in this embodiment is given.

[0041] In this embodiment, the locking device further includes a second locking bit 300, which is connected to the locking channel 220. In this embodiment, the second locking bit 300 is a wrench with a hexagonal outer diameter. It is understood that when the cross-sectional shape of the locking channel 220 is different from that in Embodiment 1, the shape of the second locking bit 300 should be adapted to the cross-sectional shape of the locking channel 220.

[0042] The above description is merely an example and illustration of the structure of this invention, and while the description is specific and detailed, it should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these obvious substitutions all fall within the protection scope of this invention.

Claims

1. A quick-change latching device, characterized in that include: A first locking bit (100) has a rear end for connecting to a clamping tool and a front end for a locking operation section (110); and The adapter (200) has its rear end detachably connected to the first locking bit (100), and the rear end of the adapter (200) has a plug groove (210) for connecting with the locking working part (110), and the front end of the adapter (200) has a locking hole (220) for fixing a wrench or a fastening screw.

2. The quick-change locking device according to claim 1, characterized in that, The horizontal cross-section of the locking channel (220) is hexagonal to be fixed or tightened with a hexagonal wrench or a hexagonal screw.

3. The quick-change latching device of claim 1, wherein, The first locking bit (100) includes a bit body (120), and the locking operation part (110) is connected to the front end of the bit body (120). The locking operation part (110) is provided with a first connecting hole (111) and a working block (112). The working block (112) is inserted into the insertion slot (210). The first connecting hole (111) is used to connect with the rear end of the adapter (200) or a locking accessory for locking the guide pin.

4. The quick-change latching device of claim 3, wherein, The front end of the work block (112) is provided with a U-shaped groove, which is recessed from the front end of the work block (112) toward the rear end.

5. The quick-change latching device of claim 3 or 4, wherein, The work block (112) is a magnetic work block.

6. The quick-change latching device of claim 5, wherein, The first locking bit (100) includes a base (101) that connects the bit body (120) and the working block (112). The first connecting hole (111) is formed on the base (101). The thickness of the base (101) is less than the thickness of the bit body (120), and the thickness of the working block (112) is less than the thickness of the base (101).

7. The quick-change latching device of claim 3, wherein, The adapter (200) has a second connecting hole (201) on its outer surface, and a first fastener (202) is provided between the second connecting hole (201) and the first connecting hole (111).

8. The quick-change latching device of claim 7, wherein, The outer surface of the adapter (200) is also provided with a third connecting hole (203), which communicates with the locking channel (220) and is connected to a second fastener (204). The second fastener (204) is a ball joint, or both the second fastener (204) and the first fastener (202) are ball joints.

9. The quick-change locking device according to claim 1, characterized in that, The rear end of the first locking bit (100) is provided with a retaining ring (102) for clamping with an electric screwdriver.

10. The quick-change latching device of claim 1, wherein, It also includes a second locking bit (300) connected to the locking channel (220).

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