Plate connecting piece

Abstract

The utility model provides a plate connecting piece which comprises a U-shaped fixing piece and a bolt. First teeth are arranged on the side wall of the connecting groove in the middle of the fixing piece, and second teeth are arranged on the outer side wall of the bolt screw between the limiting ring and the screw head and meshed with the limiting ring. During use, the fixing piece is installed in the groove of the first plate body, the bolt is screwed into the second plate body, in the connecting process of the two plates, the fixing piece moves to drive the bolt to enter the connecting groove, the first teeth are meshed with the second teeth, so that the bolt rotates to be further screwed, and the first plate body is pulled to the second plate body. According to the structure, automatic screwing is achieved through tooth meshing, compared with a traditional connection mode, the connection stability is enhanced, and loosening caused by insufficient manual screwing is avoided; meanwhile, the connecting process is simplified, the assembling efficiency is improved, the stress distribution of the connecting structure is optimized, the service life is prolonged, and the problem of exposure of the connecting structure is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plate installation, and particularly relates to a plate connecting piece. BACKGROUND

[0002] In the fields of building, furniture manufacturing and various industrial production, the connection of plates is a common and basic operation. When two plates need to be connected at 90 degrees.

[0003] At present, in the prior art, the 90-degree connection of two plates by means of an L-shaped connecting piece is a relatively common way. In this connection process, the two sides of the L-shaped connecting piece are fixedly connected with the corresponding two plates by screws.

[0004] However, the above connection method has the following problems: Since the L-shaped connecting piece is exposed after installation, it not only affects the aesthetic appearance of the overall structure, but also is out of place in some application scenarios with high requirements for appearance, such as high-grade furniture, indoor decoration, etc. At the same time, the exposed connecting piece is also prone to damage due to external force impact and other reasons, thereby affecting the stability of the connection. In addition, the exposed connecting piece may also have safety hazards, and the protruding connecting piece may cause scratches and other injuries to personnel in areas with frequent personnel activities. SUMMARY

[0005] In view of the problems pointed out in the background art, the utility model provides a plate connecting piece to solve the above technical problems.

[0006] The technical scheme of the utility model is as follows:

[0007] A plate connecting piece, comprising a U-shaped fixing piece and a bolt, wherein the fixing piece is provided with a connecting groove penetrating the middle part and one side arm thereof, the two ends of the fixing piece are respectively provided with a fixing foot, and the fixing foot is provided with a fixing hole; the shank of the bolt is provided with an annular limiting ring, and the limiting ring is arranged in a spaced manner with the screw head of the bolt.

[0008] The utility model is further provided as follows: the diameters of the limiting ring and the screw head are both greater than the width of the connecting groove, the connecting groove on the one side arm of the fixing piece is widened to form a widened groove, and the width of the widened groove is greater than the diameter of the screw head.

[0009] The utility model is further provided as follows: the width of the widened groove is less than the diameter of the limiting ring.

[0010] The utility model is further provided as follows: the sidewall of the connecting groove of the middle part of the fixing piece is provided with a tooth one, the outer sidewall of the shank is provided with a tooth two along the circumferential direction thereof, the tooth two is located between the limiting ring and the screw head, and the tooth one is engaged with the tooth two.

[0011] The utility model further sets up, the screw rod of the front end of the limiting ring is equipped with external thread.

[0012] The utility model further sets up, the middle part parallel setting of the fixed foot and the fixed part.

[0013] The utility model further sets up, the thickness of the middle part of the fixed part is equal to the distance between the limiting ring and the screw head.

[0014] Adopt above-mentioned technical scheme, the beneficial effects of the utility model are:

[0015] The utility model discloses a plate connecting piece, when two plate bodies are connected at 90 degrees, the recess is dug on the connecting surface of the first plate body, the fixed part is arranged in the recess, and the fixed foot of the fixed part is fixedly connected through the bottom of the screw recess; the connecting surface of the bolt is connected with the plate body, when the two plate bodies are connected, the screw head of the bolt enters the recess, the first plate body moves downward again, and the screw head gradually enters the connecting groove on the fixed part, so that the first plate body is hung on the bolt by means of the fixed part, meanwhile, the cooperation of the bolt and the connecting groove and the cooperation of the screw head and the fixed part restrict the movement of the first plate body in other directions, so that the first plate body and the second plate body are fixedly connected. Adopting the above technical scheme, the connecting structure of the first plate body and the second plate body is hidden between the two, and the problems of exposure and affecting the appearance and causing bumping are solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the drawings without the creative labor of the ordinary skilled in the art.

[0017] Figure 1 It is the structural schematic diagram of the utility model.

[0018] Figure 2 It is the exploded schematic diagram of the utility model.

[0019] Figure 3 It is the sectional view of the utility model.

[0020] Figure 4 It is the structural schematic diagram of the first plate body and the second plate body connection of the utility model.

[0021] Figure 5 It is the structural schematic diagram of the bolt of the utility model.

[0022] The fixed part 1, the bolt 2, the screw rod 21, the limiting ring 22, the screw head 23, the tooth 24, the connecting groove 3, the widened groove 31, the tooth 32, the fixed leg 4, the fixed hole 5, the plate body 61, the plate body 62, and the recess 63. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] The following references are made Figures 1-4 The utility model is described as follows:

[0025] Embodiment: a plate connecting piece, the core is composed of a U-shaped fixed part 1 and a bolt 2, through specific structural design, the two plates are stably connected at 90 degrees, and the hidden effect of the connecting structure is achieved.

[0026] The fixed part 1 and the bolt 2 are composed of a U-shaped fixed part 1 and a bolt 2.

[0027] The connecting groove 3 is arranged through the middle part and one side arm of the fixed part 1. The connecting groove 3 is a key structure for cooperation between the bolt 2 and the fixed part 1.

[0028] The fixed leg 4 is arranged at the two ends of the fixed part 1, the fixed leg 4 is arranged in parallel with the middle part of the fixed part 1, and the fixed hole 5 is arranged on the fixed leg 4. The fixed hole 5 on the fixed leg 4 is used for installing a screw, in actual application, a recess is arranged on the connecting surface of the plate body 1, the fixed part 1 is placed in the recess, the screw is passed through the fixed hole 5 and the bottom of the recess to be fixed, so that the fixed part 1 is stably installed on the plate body 1, and a foundation is laid for subsequent connection with the plate body 2.

[0029] The screw rod 21 is provided with a limiting ring 22 in the form of a ring, and the limiting ring 22 is arranged in a spaced manner with the screw head 23 of the bolt 2.

[0030] The screw rod 21 is provided with external threads at the front end of the limiting ring 22, and the external threads are used for threaded connection with the connecting surface of the plate body 2. By screwing into the plate body 2, the screw rod 21 is fixed with the plate body 2, so that the bolt 2 is stably installed on the plate body 2.

[0031] When the bolt 2 is screwed into the plate body 2, the limiting ring 22 abuts against the connecting surface of the plate body 2, thereby playing a positioning role.

[0032] The diameters of the limiting ring 22 and the screw head 23 are both greater than the width of the connecting groove 3, the connecting groove 3 on the side arm of the fixing part 1 is widened to form a widened groove 31, and the width of the widened groove 31 is greater than the diameter of the screw head 23, which is designed to facilitate the screw head 23 to pass through the connecting groove 3, and to provide a channel for the assembly of the bolt 2 and the fixing part 1 during the connection of the two plates.

[0033] The width of the widened groove 31 is less than the diameter of the limiting ring 22, so that after the bolt 2 passes through the connecting groove 3, the limiting ring 22 cannot pass through the widened groove 31, thereby enabling the limiting ring 22 to form a limiting fit with the fixing part 1 after assembly.

[0034] The thickness of the middle part of the fixing part 1 is equal to the distance between the limiting ring 22 and the screw head 23, when the bolt 2 enters the connecting groove 3, the limiting ring 22 and the screw head 23 are located on both sides of the middle part of the fixing part 1, forming a limit to avoid the bolt 2 from being loose in position with the fixing part 1 in the axial direction, and to ensure the reliability of the connection.

[0035] A recess is dug on the connecting surface of the plate body one, the fixing part 1 is placed in the recess, and the fixing foot 4 is fixed to the bottom of the recess through the screw, thereby completing the installation of the fixing part 1 on the plate body one; at the same time, the bolt 2 is screwed into the connecting surface of the plate body two through the external threads on the screw rod 21, so that the limiting ring 22 abuts against the plate body two, and the installation of the bolt 2 on the plate body two is completed.

[0036] When the two plate bodies are connected at 90 degrees, the screw head 23 of the bolt 2 on the plate body two is aligned with the widened groove 31 of the fixing part 1 on the plate body one, the plate body one is moved downward, and the screw head 23 gradually passes through the widened groove 31 and enters the connecting groove 3. With the movement of the plate body one, the bolt 2 cooperates with the connecting groove 3, and the positional relationship between the screw head 23 and the fixing part 1 limits the movement of the plate body one in other directions except the connecting direction.

[0037] When the screw rod 21 completely enters the connecting groove 3, the limiting ring 22 and the screw head 23 are located on both sides of the middle part of the fixing part 1, respectively, thereby limiting the relative position of the bolt 2 and the fixing part 1 from the axial direction, enabling the plate body one to be hung on the bolt 2 with the help of the fixing part 1, and realizing the fixed connection of the plate body one and the plate body two.

[0038] Through the above structure design and connection process, the plate connecting part successfully hides the connection structure of the plate body one and the plate body two between the two plate bodies. Compared with the traditional exposed connection mode, the problem that the connecting part is exposed outside and affects the overall appearance is avoided; at the same time, the bumping safety hazard possibly caused by the exposed connecting part is eliminated, the practicability and safety of the connection structure are improved, and the plate connecting part is suitable for various plate connection scenes with high requirements on appearance and safety.

[0039] The sidewall of the connecting groove 3 in the middle part of the fixing part 1 is provided with a first tooth 32, and the first tooth 32 is distributed along the length direction of the connecting groove 3.

[0040] The outer side wall of the screw rod 21 is provided with teeth 24 along the circumference thereof, the teeth 24 are located between the limiting ring 22 and the screw head 23, and the teeth 32 are engaged with the teeth 24. When the screw rod 21 enters the connecting groove 3, the teeth 32 can be smoothly engaged with the teeth 24, and stable transmission effect can be achieved.

[0041] The technical scheme described above, on the basis of the original plate connecting piece structure, in order to further enhance the stability and firmness of the connection between the plate body 1 and the plate body 2, the engaging tooth structure is additionally provided on the side wall of the connecting groove 3 in the middle of the fixing piece 1 and the outer side wall of the screw rod 21. Through the mechanical engagement and transmission principle, the automatic tightening function in the connection process is realized, and it is ensured that after the two plates are connected at 90 degrees, they can withstand greater external force without being easily loosened.

[0042] Initial state: before the connection operation of the plate body 1 and the plate body 2, the fixing piece 1 has been installed on the plate body 1, and the bolt 2 has been fixed on the plate body 2. At this time, the teeth 32 and the teeth 24 have not been in contact.

[0043] Connection process: when the plate body 1 is pushed to move the fixing piece 1, the bolt 2 begins to enter the connecting groove 3, and the teeth 24 on the outer side wall of the screw rod 21 gradually approach the teeth 32 on the side wall of the connecting groove 3. With the further movement of the fixing piece 1, the teeth 32 and the teeth 24 begin to contact and engage with each other.

[0044] Transmission and tightening: due to the engagement relationship between the teeth 32 and the teeth 24, the linear movement of the fixing piece 1 is converted into the rotational movement of the bolt 2. During the engagement and transmission process, the bolt 2 is further screwed into the threaded hole of the plate body 2. Because the axial tension generated when the bolt 2 is screwed in, the plate body 1 is pulled towards the plate body 2, and the connection gap between the two plate bodies is gradually reduced.

[0045] Final fixation: when the bolt 2 completely enters the connecting groove 3 and reaches the predetermined position, the teeth 32 and the teeth 24 complete the entire engagement and transmission process, the bolt 2 reaches the best tightening state, the plate body 1 and the plate body 2 are tightly attached, and a firm and stable connection is formed.

[0046] Technical advantages of the tooth structure:

[0047] Enhance the stability of the connection: the automatic tightening function realized by the engagement of the teeth can make the bolt 2 reach a more precise and reasonable tightening degree compared with simply relying on manual tightening of the bolt, effectively avoid the problem of connection loosening caused by insufficient tightening, and significantly improve the overall stability after the connection of the plates.

[0048] The connection efficiency is improved: in the process that the fixing part 1 is connected with the bolt 2, the meshing transmission of the teeth automatically completes the further tightening of the bolt 2, without additional tightening operation steps, the connection process is simplified, the assembly time is shortened, and the work efficiency of the plate connection is improved.

[0049] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sheet metal connector, comprising a U-shaped fastener and bolts, characterized in that: The fastener has a connecting groove that runs through its middle and one side arm. Both ends of the fastener have fixing feet with fixing holes. The bolt has an annular limiting ring on its shank, which is spaced apart from the bolt head.

2. A plate connector according to claim 1, characterized in that: The diameters of the limiting ring and the screw head are both greater than the width of the connecting groove. The connecting groove on one side arm of the fastener is widened to form a widened groove, and the width of the widened groove is greater than the diameter of the screw head.

3. A plate connector according to claim 2, characterized in that: The width of the widened groove is smaller than the diameter of the limiting ring.

4. A plate connector according to claim 2, characterized in that: The fastener has a tooth on the side wall of the connecting groove in the middle, and a tooth on the outer side wall of the screw along its circumference. The tooth is located between the limiting ring and the screw head, and the tooth engages with the tooth.

5. A plate connector according to claim 2, characterized in that: The screw at the front end of the limiting ring is provided with an external thread.

6. A plate connector according to claim 2, characterized in that: The fixing feet are arranged parallel to the middle of the fixing components.

7. A plate connector according to claim 1, characterized in that: The thickness of the middle part of the fastener is equal to the distance between the limiting ring and the screw head.

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