A switching fixing device for wire rod workbench

By designing a transition and fixing device for dovetail grooves and square slots, the problem of stable connection between the lean wire workbench and square tubes in large workbench scenarios was solved, achieving high load-bearing capacity and stable connection, and improving the structural stability and assembly efficiency of the workbench.

CN224360139UActive Publication Date: 2026-06-16GUANGDONG LECHUANG PRECISION IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG LECHUANG PRECISION IND CO LTD
Filing Date
2025-07-04
Publication Date
2026-06-16

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Abstract

The utility model relates to the connection technical field of wire bar workstation, especially to a kind of switching fixing device for wire bar workstation, including two buckles, one end is fixed to the dovetail boss of wire bar by embracing and clamping, and the other end is fixed to the end of square tube by embracing and clamping;Buckle one end is provided with clamping slot, the clamping slot on two buckles is spliced to form complete dovetail groove, the embracing and clamping fixation to dovetail boss is realized;The other end of buckle is equipped with square tube embracing arm, the embracing arm on two buckles is mutually enclosed, embraces tightly square tube end, forms fixed connection;It further includes locking mechanism, for the two buckles after splicing are locked, so that buckle is fixed between wire bar and square tube.The dovetail groove spliced by two buckles and square embracing arm are used to realize the perpendicular fixation of wire bar and square tube, prevent movement and have large bearing capacity;The use of wire bar other dovetail platform is not affected by the design of inclined plane, hole column and reinforcing plate enhance structural strength, bolt locking is convenient, and adaptability is high.
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Description

Technical Field

[0001] This utility model relates to the technical field of connecting bar workbenches, and in particular to a transfer and fixing device for bar workbenches. Background Technology

[0002] Existing assembly line workbenches are typically assembled using 28mm diameter lean pipes with a variety of connectors, and fitted with appropriate workbenches, panels, power strips, and other application accessories according to operational needs. These workbenches can be used independently, combined, and easily adjusted, allowing for flexible design and assembly based on specific operational requirements. They are suitable for testing, repair, and product assembly in various industries.

[0003] Through development and improvement, the current third-generation lean pipes are typically made of aluminum alloy, also known as aluminum alloy lean pipes. They are silver-white in appearance and have an anodized surface for permanent corrosion and rust prevention. Furthermore, the outer wall of aluminum alloy lean pipes usually has cross-shaped dovetail grooves, facilitating expansion connections with other pipe fittings, accessories, or connectors.

[0004] In the field of constructing lean pipe workbenches, lean pipes, with their steel-plastic composite tube structure consisting of an outer plastic coating, a middle metal layer, and an inner rust-proof layer, possess characteristics such as aesthetic appeal, wear resistance, bright color, rust prevention, and no pollution. This makes them a commonly used material for constructing various workstations and material racks. Lean pipe products, through the use of fittings and connectors, form modular systems, enabling the transformation of various creative ideas into practical structures. The manufacturing process is simple, rapid, and cost-effective, leading to their widespread application in workshops and warehouses across many industries, including electronics, automotive, and light industry. They are particularly frequently used as temporary storage racks for parts and raw materials in assembly and machine tool workstations.

[0005] In traditional technologies, lean pipe assembly primarily relies on various connectors or adapters. Most of these conventional connectors or adapters only enable connection or transfer between lean pipes. For example, common lean pipe joints are designed to meet the needs of splicing and turning lean pipes. Lean pipe joints used for building exhibition stands and racks mainly connect lean pipes into a frame structure of a specific shape. However, their limitations become apparent when facing workbenches requiring significant load-bearing capacity. For large workbenches, square tubing is often needed for support and fixation to ensure sufficient strength and stability. However, traditional lean pipe adapters generally lack the structural design to fix square tubing, failing to achieve a stable connection between lean pipes and square tubing. This limits the load-bearing capacity of lean pipe workbenches and makes it difficult to meet the needs of industrial production or warehousing logistics scenarios with high load-bearing requirements.

[0006] Furthermore, some existing devices for connecting bar wires have shortcomings in terms of connection stability, space utilization, and adaptability. Some bar wire connectors have poor stability after installation, which can easily lead to the bar wires loosening or even falling off, affecting the stability of the entire workbench structure. Some connecting devices occupy too much of the bar wire's peripheral space during installation, reducing the effective length of the bar wire. If other components such as sliders are installed on the bar wire, their sliding distance will also be limited, causing inconvenience in actual use. Utility Model Content

[0007] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0008] This utility model provides a transfer and fixing device for a bar workbench, including two buckles arranged opposite each other. One end of each buckle clamps and fixes to the dovetail boss of the bar, and the other end clamps and fixes to the end of a square tube, thereby transferring and fixing the bar to the square tube, so that the bar and the square tube form a vertical fixing structure. One end of each buckle has a groove that matches the dovetail boss. When the two buckles are joined, the grooves on the two buckles are joined to form a complete dovetail groove, realizing the clamping and fixing of the dovetail boss. The other end of each buckle has a square tube clamping arm. After the two buckles are joined, the clamping arms on the two buckles surround each other and tighten the end of the square tube to form a fixed connection. It also includes a locking mechanism for locking the two buckles after they are joined, so that the buckles are fixed between the bar and the square tube.

[0009] Furthermore: the slot is configured as a single-sided trapezoidal slot that matches the dovetail boss.

[0010] Furthermore, the slot is designed as a semi-dovetail-shaped groove.

[0011] Furthermore: a square semi-groove is provided on the inner side of the clamping arm. The square semi-groove is designed as a right-angled semi-groove that matches the cross-section of the square tube. After the two buckles are joined together, a complete square hole and groove are formed.

[0012] Furthermore: one end of the buckle is provided with a slot, and the other side opposite to the slot is provided with a bevel, which is used to avoid the dovetail protrusion on the side of the bar.

[0013] Furthermore: a post is provided between the slot of the cover and the clamping arm, and a first through hole is provided in the post; the locking mechanism is provided with a first bolt, which passes through the first through hole in the post.

[0014] Furthermore, a reinforcing plate is provided between the perforated column and the clamping arm. The middle part of the reinforcing plate is fixed to the perforated column, and its two ends are respectively fixed to the two side walls of the clamping arm.

[0015] Furthermore, the outer wall of the cover is provided with a hexagonal countersunk hole, which is coaxially arranged with the first through hole of the post.

[0016] Furthermore, the clamping arm corresponding to the side wall of the hexagonal countersunk hole is also provided with a second through hole, and the locking mechanism is provided with a second bolt, which passes through the second through hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Multi-scenario adaptable fixing structure: The double-clasp cover is spliced ​​to form a dovetail groove and a square hole groove, which simultaneously holds the dovetail boss of the wire rod and the square tube, realizing the vertical fixation of the wire rod and the square tube. This solves the problem that traditional connectors cannot connect square tubes and is suitable for heavy-duty workbenches.

[0019] 2. Stable clamping and anti-loosening design: The single-sided trapezoidal slot and square half-groove of the cover are spliced ​​together to form a tight clamping structure. Combined with the bolt locking mechanism and reinforcing plate, the radial fixing force is enhanced to prevent movement; the sloping design avoids other dovetail bosses on the bar and does not affect the installation of additional components.

[0020] 3. Flexible modular assembly: The snap-on structure can be adapted to standard wire rod and square tube specifications, and can be quickly disassembled and assembled with bolts, improving the assembly efficiency of the workbench. The reinforcing plate and countersunk hole design take into account both strength and installation convenience.

[0021] This utility model achieves vertical fixation of the wire rod and the square tube through the dovetail groove of the two snap-on covers and the square clamping arm, which prevents movement and has a large load-bearing capacity; the sloping design does not affect the use of other dovetail platforms of the wire rod, the hole column and reinforcing plate enhance the structural strength, the bolts are easy to tighten, and the applicability is high.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of the buckle and locking mechanism of this utility model;

[0025] Figure 2 This is a schematic diagram of the card slot and clamping arm of this utility model;

[0026] Figure 3 This is a schematic diagram of the inclined plane and hexagonal nut of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the perforated column and the reinforcing plate of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the first through hole and the hexagonal countersunk hole of this utility model.

[0029] The reference numerals and names in the figure are as follows:

[0030] 10. Cover; 11. Slot; 12. Bevel; 13. Hole post; 14. First through hole; 15. Reinforcing plate; 16. Hexagonal countersunk hole; 20. Clamping arm; 21. Second through hole; 30. Locking mechanism; 31. First bolt; 32. Hexagonal nut; 33. Second bolt; 40. Wire rod; 41. Dovetail boss; 50. Square tube. Detailed Implementation

[0031] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Please see Figures 1 to 5 In this embodiment of the present invention, a transfer and fixing device for a bar workbench includes two buckles 10 arranged opposite to each other. One end of each buckle 10 is clamped and fixed to the dovetail boss 41 of the bar 40, and the other end is clamped and fixed to the end of the square tube 50, thereby transferring and fixing the bar 40 to the square tube 50, so that the bar 40 and the square tube 50 form a vertical fixing structure; one end of each buckle 10 is provided with a slot 11 that matches the dovetail boss 41, and the two buckles... When the two covers 10 are assembled, the slots 11 on the two covers 10 are joined together to form a complete dovetail groove, which realizes the clamping and fixing of the dovetail boss 41; the other end of the cover 10 is provided with a square tube 50 clamping arm 20. After the two covers 10 are assembled, the clamping arms 20 on the two covers 10 surround each other and clamp the end of the square tube 50 to form a fixed connection; it also includes a locking mechanism 30, which is used to lock the two covers 10 after assembly, so that the covers 10 are fixed between the rod 40 and the square tube 50.

[0033] Specifically, during the assembly of the bar 40, various connectors or adapters are typically used to install and fix the bar 40, assembling it into a corresponding bar 40 workbench. However, ordinary connectors or adapters are usually only used for connecting or transferring bar 40s to each other. For some workbenches requiring greater load-bearing capacity, square tubes 50 are needed for support and fixation. Traditional bar 40 adapters do not have the structure and capability to fix square tubes 50, therefore, improvement is necessary.

[0034] This invention utilizes two opposing fasteners 10 designed on the adapter fixing device. The fasteners 10 have grooves 11 designed on them, which, when joined together, form a complete dovetail groove, thus clamping and fixing the original dovetail protrusion 41 on the wire rod 40. Furthermore, square tube clamping arms 20 are designed at the other end of each of the two fasteners 10. When the two fasteners 10 are joined together, the corresponding clamping arms 20 form an enclosure, thereby clamping the square tube 50 and achieving the adapter fixing operation.

[0035] Secondly, the clamping arm 20, which is equivalent to a single buckle 10, is a square half-groove. After the two buckles 10 are joined together, a complete square adapter groove corresponding to the square tube 50 is formed. Then, the locking mechanism 30 generates radial pressure to fix the end of the square tube 50 in the adapter groove to prevent it from moving or rotating.

[0036] In addition, the locking mechanism 30 can be a common bolt, snap fastener or elastic clip, used to lock the two snap covers 10 after they are assembled, to prevent the rod 40 or the square tube 50 from loosening.

[0037] In one embodiment, such as Figures 2 to 5 As shown, preferably, the slot 11 is a single-sided trapezoidal slot 11 that matches the dovetail boss 41.

[0038] Specifically, the single-sided trapezoidal slot 11 can be set as a single-sided trapezoidal slot that is narrower at the top and wider at the bottom, forming half of the outline of the dovetail slot. By fastening the two snap covers 10, the two separate single-sided trapezoidal slots 11 are combined into a complete dovetail clamping slot, which clamps and fixes the dovetail boss 41.

[0039] In another embodiment, such as Figures 2 to 5 As shown, preferably, the slot 11 is a semi-dovetail-shaped groove.

[0040] Specifically, the width of the semi-dovetail groove is adapted to the single-sided slope of the dovetail boss 41, and after being combined with the semi-dovetail groove symmetrical to the other cover 10, a complete dovetail groove is formed, so that the dovetail boss 41 of the wire rod 40 can be embedded in the dovetail groove to form a clamping fixation.

[0041] like Figure 4 As shown, preferably, a square semi-groove is provided on the inner side of the clamping arm 20. The square semi-groove is set as a right-angle semi-groove that matches the cross-section of the square tube 50. The two buckles 10 are joined together to form a complete square hole and groove.

[0042] Specifically, the square half-grooves of the clamping arms 20 of the two snap-on covers 10 are symmetrically joined together to form a complete square hole groove. The locking mechanism 30 makes the groove wall of the square hole groove fit tightly against the surface of the square tube 50, thus achieving fixation. The locking mechanism 30 can be set as a bolt and nut locking combination in the prior art, such as a combination of a hexagonal nut 32 and an internal hexagonal head screw.

[0043] Secondly, the clamping arm 20 of the cover 10 adopts a 'square half-groove + bolt' structure: a single cover 10 has a single-sided rectangular groove with a flat bottom and side wall. After being assembled with the matching cover 10, it forms a square hole with a size of 25mm×25mm. The radial force generated when the M6 ​​bolt is tightened makes the inner wall of the square hole fit tightly against the end of the square tube 50 (specification 25mm×25mm) to achieve fixation.

[0044] like Figures 1 to 3 As shown, preferably, the cover 10 is provided with a slot 11 at one end, and an inclined surface 12 is provided on the other side opposite to the slot 11. The inclined surface 12 is used to avoid the dovetail protrusion 41 on the side of the bar 40.

[0045] Specifically, since the bar 40 is usually provided with four sets of dovetail protrusions 41 arranged in a cross shape, after the slot 11 of the cover 10 clamps one set of dovetail protrusions 41, the dovetail protrusions 41 on both sides of the bar 40 can also be used to install other bars 40 or components. Therefore, in order to prevent the clamping and fixing of the cover 10 from affecting the use of the dovetail protrusions 41 on both sides, it is preferable to provide a slope 12 on the opposite side of the slot 11 to reduce the space occupied by the cover 10 to both sides, avoid the installation components on the dovetail protrusions 41 on the side of the bar 40, and make full use of the dovetail protrusions 41 on the side of the bar 40.

[0046] Secondly, preferably, the angle between the inclined surface 12 and the end face of the cover 10 is α=45° (and can be adjusted according to the specifications of the wire rod 40).

[0047] like Figure 1 and Figure 4 As shown, preferably, a post 13 is provided at the position between the slot 11 of the cover 10 and the clamping arm 20, and a first through hole 14 is provided in the post 13; the locking mechanism 30 is provided with a first bolt 31, which passes through the first through hole 14 in the post 13.

[0048] Specifically, in order to lock the two oppositely positioned covers 10 in a locked state during the clamping process of the wire rod 40, a first bolt 31 is preferably provided, and the first bolt 31 passes through the first through hole 14 in the buckle post 13 to lock the two covers 10. The diameter of the first through hole 14 is adapted to the diameter of the first bolt 31 (e.g., an M6 bolt corresponds to a φ6.5mm through hole).

[0049] like Figure 4 As shown, preferably, a reinforcing plate 15 is provided between the perforated post 13 and the clamping arm 20. The middle part of the reinforcing plate 15 is fixed to the perforated post 13, and its two ends are respectively fixed to the two side walls of the clamping arm 20.

[0050] Specifically, to create a more stable connection between the two side walls of the clamping arm 20 and prevent the square tube 50 from being pried or shaken from the side walls of the clamping arm 20, thereby further improving the fixing strength of the square tube 50, a reinforcing plate 15 is preferably provided. This plate is fixedly attached to the two side walls of the clamping arm 20 and simultaneously forms a fixed connection with the post 13, further improving the structural strength of the entire cover 10. The reinforcing plate 15 has a thickness δ=2mm and is manufactured using welding or integral molding processes with the clamping arm 20.

[0051] Secondly, the reinforcing plate 15 serves as the bottom support surface of the square semi-groove, directly bearing the abutment force at the end of the square tube 50. At the same time, by connecting the post 13 and the clamping arm 20, it enhances the structure's resistance to deformation and prevents the post 13 from being damaged due to excessive force.

[0052] like Figure 3 and Figure 5 As shown, preferably, the outer wall of the cover 10 is provided with a hexagonal countersunk hole 16, which is coaxially arranged with the first through hole 14 of the post 13.

[0053] Specifically, in order to place the hexagonal nut 32, it is preferable to provide a hexagonal countersunk hole 16 on the outer side of the buckle 10 opposite to the post 13, forming a nut insert groove, so that the hexagonal nut 32 is recessed into the hexagonal countersunk hole 16, and the inner sidewall of the hexagonal countersunk hole 16 abuts against the outer contour of the hexagonal nut 32, thereby fixing the hexagonal nut 32.

[0054] Secondly, both covers 10 have hexagonal countersunk holes 16 on their outer sides. One of the covers 10 has a hexagonal countersunk hole 16 for inserting a hexagonal nut 32, while the other cover 10 has a hexagonal countersunk hole 16 for accommodating the nut of the first bolt 31, so that the nut is recessed into the hexagonal countersunk hole 16 and can rotate within the hexagonal countersunk hole 16, thereby locking the first bolt 31 and the hexagonal nut 32.

[0055] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, preferably, the clamping arm 20 is provided with a second through hole 21 corresponding to the side wall of the hexagonal countersunk hole 16, and the locking mechanism 30 is provided with a second bolt 33, which passes through the second through hole 21.

[0056] Specifically, to prevent the square tube 50 from dislodging from the square groove of the clamping arm 20, preferably, a second through hole 21 is also provided on the side wall of the clamping arm 20 corresponding to the hexagonal countersunk hole 16. Similarly, a threaded hole or a through hole can also be provided on the square tube 50 at the position corresponding to the second through hole 21. If the corresponding position of the square tube 50 is pre-machined as a threaded hole, the second bolt 33 can directly pass through the second through hole 21 and be threaded into the threaded hole; if it is a through hole, a nut needs to be used to fix it on the other side of the square tube 50. That is, the second bolt 33 can pass through the second through hole 21 and directly form a threaded connection with the threaded hole. Alternatively, the second bolt 33 can pass through the second through hole 21 and then through the through hole of the square tube 50, and a nut can be used to fix the second bolt 33 from the other end.

[0057] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A conversion and fixing device for a wire rod workbench, characterized in that, The device includes two snap-on covers (10) positioned opposite each other. One end of each snap-on cover (10) is clamped and fixed to the dovetail boss (41) of the rod (40), and the other end is clamped and fixed to the end of the square tube (50), thereby transferring and fixing the rod (40) onto the square tube (50), so that the rod (40) and the square tube (50) form a vertical fixed structure. One end of each snap-on cover (10) has a slot (11) that matches the dovetail boss (41). When the two snap-on covers (10) are joined together, the two snap-on covers (10) have a slot (11) that matches the dovetail boss (41). The slot (11) is assembled to form a complete dovetail groove, which realizes the clamping and fixing of the dovetail boss (41); the other end of the cover (10) is provided with a square tube (50) clamping arm (20). After the two covers (10) are assembled, the clamping arms (20) on the two covers (10) surround each other and clamp the end of the square tube (50) to form a fixed connection; it also includes a locking mechanism (30) for locking the two covers (10) after assembly, so that the covers (10) are fixed between the rod (40) and the square tube (50).

2. The adapter and fixing device for a wire rod workbench according to claim 1, characterized in that, The slot (11) is configured as a single-sided trapezoidal slot (11) that matches the dovetail boss (41).

3. The adapter and fixing device for a wire rod workbench according to claim 1, characterized in that, The slot (11) is designed as a semi-dovetail groove.

4. The adapter and fixing device for a wire rod workbench according to claim 1, characterized in that, The inner side of the clamping arm (20) is provided with a square half-groove. The square half-groove is set as a right-angle half-groove that matches the cross-section of the square tube (50). The two buckles (10) are joined together to form a complete square hole groove.

5. The adapter and fixing device for a wire rod workbench according to claim 1, characterized in that, The cover (10) has a slot (11) at one end and a slope (12) on the other side opposite to the slot (11). The slope (12) is used to avoid the dovetail boss (41) on the side of the bar (40).

6. The adapter and fixing device for a wire rod workbench according to claim 1, characterized in that, At the position between the slot (11) of the cover (10) and the clamping arm (20), there is also a post (13), and a first through hole (14) is provided in the post (13); the locking mechanism (30) is provided with a first bolt (31), and the first bolt (31) passes through the first through hole (14) in the post (13).

7. The adapter and fixing device for a wire rod workbench according to claim 6, characterized in that, A reinforcing plate (15) is also provided between the perforated column (13) and the clamping arm (20). The middle part of the reinforcing plate (15) is fixed to the perforated column (13), and its two ends are respectively fixed to the two side walls of the clamping arm (20).

8. The adapter and fixing device for a wire rod workbench according to claim 6, characterized in that, The outer wall of the cover (10) is provided with a hexagonal countersunk hole (16), which is coaxially arranged with the first through hole (14) of the post (13).

9. A transfer and fixing device for a wire rod workbench according to claim 8, characterized in that, The clamping arm (20) is provided with a second through hole (21) corresponding to the side wall of the hexagonal countersunk hole (16), and the locking mechanism (30) is provided with a second bolt (33), which passes through the second through hole (21).