Tenon and mortise keyway crossbar crimping plug

Abstract

The present invention relates to a mortise and tenon keyway cross-bar crimping plug, which includes a cross-bar, a vertical rod, a crimping plug and a socket. The crimping plug is formed with a plug-in portion and a limiting portion, and the crimping plug is connected to the cross-bar through the plug-in portion; a channel is formed in the center of the socket, the vertical rod penetrates into the channel of the socket, and a clamping portion is formed at the edge of the socket; the limiting portion of the crimping plug is assembled with the clamping portion of the socket; a recessed opening is provided at the bottom end of the clamping portion, a through adjusting opening is provided in the limiting portion, a limiting pin is inserted into the adjusting opening, and the limiting pin slides into the recessed opening to prevent the separation of the limiting portion and the clamping portion, and the limiting pin slides out of the recessed opening to release the blocking state between the limiting portion and the clamping portion. The present invention can realize the combined connection between shaped steel pipes, is convenient to use, has strong connection stability, effectively avoids break-off under the action of external force, and is safer and more reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of scaffolds, and in particular relates to a mortise and tenon key groove crossbar crimping plug. Background Art

[0002] The widespread development of super high-rise buildings has promoted the development of scaffolding technology for high-rise building construction. Scaffolding is a temporary system erected around buildings or structures under construction to facilitate structural construction or exterior wall decoration work by construction workers, as well as an auxiliary construction facility for stacking building materials during operation, or a temporary support system erected to fix the formwork during concrete pouring.

[0003] The inventor has previously conducted a large number of research and development applications in the field of steel pipe assembly, and has been committed to pursuing the stability of steel pipe assembly. After the traditional horizontal bars and vertical bars are assembled, they are still prone to separation due to external forces and cannot be effectively prevented from collapsing, posing a huge safety hazard. How to effectively prevent the assembled steel pipes from collapsing is an issue worthy of in-depth study. Summary of the invention

[0004] The purpose of the present invention is to provide a mortise and tenon keyway crossbar crimping plug, which can realize the combined connection between steel pipes, is easy to use, has stable connection, and solves the problem of easy disintegration after assembly.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a mortise and tenon keyway crossbar crimping plug, comprising a crossbar, a vertical rod, a crimping plug and a socket, the crimping plug is formed with an inserting portion and a limiting portion, the crimping plug is connected to the crossbar through the inserting portion; a channel is formed in the center of the socket, the vertical rod penetrates into the channel of the socket, and a clamping portion is formed at the edge of the socket; the limiting portion of the crimping plug is assembled with the clamping portion of the socket; a recess is provided at the bottom end of the clamping portion, the limiting portion is provided with a through adjustment port, a limiting pin is inserted into the adjusting port, the limiting pin slides into the recess to prevent the limiting portion from separating from the clamping portion, and the limiting pin slides out of the recess to release the blocking state between the limiting portion and the clamping portion.

[0006] As a preferred solution for the mortise and tenon keyway crossbar crimping plug, the adjustment port is provided with a first resting position and a second resting position, and a raised position is formed between the first resting position and the second resting position.

[0007] As a preferred solution for the mortise and tenon keyway crossbar crimping plug, the limiting portion is provided with a limiting groove, the width of the limiting groove increases from top to bottom, and the width of the limiting groove decreases from inside to outside.

[0008] As a preferred solution for the mortise and tenon keyway crossbar crimping plug, the outer wall of the clamping portion matches the inner wall of the limiting groove.

[0009] As a preferred embodiment of the mortise and tenon keyway crossbar crimping plug, the limit pin is cylindrical, and the length of the limit pin is greater than the length of the adjustment opening.

[0010] As a preferred embodiment of the mortise and tenon keyway crossbar crimping plug, the insertion part is cylindrical, and the outer wall of the insertion part is inserted into the inside of the crossbar.

[0011] The beneficial effects of the present invention are as follows: The crimping plug is formed with an insertion part and a limit part, and the crimping plug is connected to the crossbar through the insertion part; a channel is formed in the center of the socket, the vertical rod penetrates into the channel of the socket, and a clamping part is formed at the edge of the socket; the limit part of the crimping plug is assembled with the clamping part of the socket; a recessed opening is provided at the bottom end of the clamping part, a through adjustment opening is provided in the limit part, a limit pin is inserted inside the adjustment opening, and the limit pin slides into the recessed opening to prevent the separation of the limit part and the clamping part, and the limit pin slides out of the recessed opening to release the blocking state between the limit part and the clamping part. The present invention can realize the combined connection between the profiled steel pipes, is convenient to use, has strong connection stability, effectively avoids breakage under the action of external force, and is safer and more reliable. Description of the Drawings

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0013] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical substance significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0014] Figure 1 Schematic exploded view of the mortise and tenon keyway crossbar crimping plug provided in the embodiment of the present invention;

[0015] Figure 2 Schematic diagram of the mortise and tenon keyway crossbar crimping plug in a separable state provided in the embodiment of the present invention;

[0016] Figure 3 Schematic diagram of the mortise and tenon keyway crossbar crimping plug in an anti-breakage state provided in the embodiment of the present invention;

[0017] Figure 4 Schematic three-dimensional diagram of the mortise and tenon keyway crossbar crimping plug provided in the embodiment of the present invention;

[0018] Figure 5 It is a schematic cross-sectional view of a crimping plug of a mortise and tenon keyway crossbar crimping plug provided in an embodiment of the present invention.

[0019] In the figure, 1, horizontal bar; 2, vertical bar; 3, crimping plug; 4, socket; 5, plug-in part; 6, limiting part; 7, clamping part; 8, recessed opening; 9, adjustment opening; 10, limiting pin; 11, first resting position; 12, second resting position; 13, lifting position. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0022] See also Figure 1 , Figure 2 and Figure 3 , a mortise and tenon keyway crossbar crimping plug is provided, comprising a crossbar 1, a vertical rod 2, a crimping plug 3 and a socket 4, the crimping plug 3 is formed with a plug-in portion 5 and a limiting portion 6, the crimping plug 3 is connected to the crossbar 1 through the plug-in portion 5; a channel is formed in the center of the socket 4, the vertical rod 2 penetrates into the channel of the socket 4, and a clamping portion 7 is formed at the edge of the socket 4; the limiting portion 6 of the crimping plug 3 is assembled with the clamping portion 7 of the socket 4; a recessed opening 8 is provided at the bottom end of the clamping portion 7, the limiting portion 6 is provided with a through adjustment opening 9, a limiting pin 10 is inserted inside the adjustment opening 9, the limiting pin 10 slides into the recessed opening 8 to prevent the limiting portion 6 from separating from the clamping portion 7, and the limiting pin 10 slides out of the recessed opening 8 to release the blocking state of the limiting portion 6 and the clamping portion 7.

[0023] Assistance Figure 4 and Figure 5, in this embodiment, the adjustment opening 9 is provided with a first resting position 11 and a second resting position 12, and a lifting position 13 is formed between the first resting position 11 and the second resting position 12. When the limit pin 10 is at the first resting position 11, the limit pin 10 does not contact the locking part, and at the same time, the recessed opening 8 does not make hard contact with the limit pin 10, so that the cross bar 1 can smoothly fall into the socket 4 of the vertical rod 2 along with the crimping plug 3. After the limit pin 10 is transferred from the first resting position 11 to the second resting position 12, the limit pin 10 slides into the recessed opening 8, and the limit pin 10 makes hard contact with the locking part, preventing the cross bar 1 and the vertical rod 2 from coming off. The design of the lifting position 13 prevents the limit pin 10 from moving around between the first resting position 11 and the second resting position 12.

[0024] In this embodiment, the limiting part 6 is provided with a limiting groove 14, the width of the limiting groove 14 increases sequentially from top to bottom, and the width of the limiting groove 14 decreases sequentially from inside to outside. The outer wall of the clamping part 7 fits with the inner wall of the limiting groove 14. The limiting groove 14 and the locking part can only be assembled in the up and down manner, cannot slide in from the side, and cannot slip off from the side after assembly.

[0025] In this embodiment, the limit pin 10 is cylindrical, and the length of the limit pin 10 is greater than the length of the adjustment opening 9. The limit pin 10 fits with the inner wall of the adjustment opening 9 and is exposed from the adjustment opening 9, facilitating the operation of the limit pin 10.

[0026] In this embodiment, the plugging part 5 is cylindrical, and the outer wall of the plugging part 5 is inserted into the inside of the cross bar 1. An interference fit is provided between the plugging part 5 and the cross bar 1, and a keyway can be configured to prevent slipping.

[0027] The present invention is provided with a cross bar 1, a vertical rod 2, a crimping plug 3 and a socket 4. The crimping plug 3 is formed with a plugging portion 5 and a limiting portion 6. The crimping plug 3 is connected to the cross bar 1 through the plugging portion 5. A channel is formed in the center of the socket 4, and the vertical rod 2 penetrates into the channel of the socket 4. A clamping portion 7 is formed at the edge of the socket 4. The limiting portion 6 of the crimping plug 3 is assembled with the clamping portion 7 of the socket 4. A recessed opening 8 is provided at the bottom end of the clamping portion 7, and a through adjusting opening 9 is provided in the limiting portion 6. A limiting pin 10 is inserted into the adjusting opening 9. The limiting pin 10 slides into the recessed opening 8 to prevent the separation of the limiting portion 6 and the clamping portion 7, and the limiting pin 10 slides out of the recessed opening 8 to release the blocking state between the limiting portion 6 and the clamping portion 7. When the limiting pin 10 is in the first resting position 11, the limiting pin 10 does not contact the clamping portion, and at the same time, the recessed opening 8 does not make hard contact with the limiting pin 10, so that the cross bar 1 can smoothly fall into the socket 4 of the vertical rod 2 along with the crimping plug 3. After the limiting pin 10 is transferred from the first resting position 11 to the second resting position 12, the limiting pin 10 slides into the recessed opening 8, and the limiting pin 10 makes hard contact with the clamping portion, preventing the cross bar 1 and the vertical rod 2 from coming apart. The design of the lifting position 13 prevents the limiting pin 10 from moving between the first resting position 11 and the second resting position 12. The limiting groove 14 and the clamping portion can only be assembled in the up and down manner and cannot slide in from the side, and cannot slip off from the side after assembly. The limiting pin 10 fits with the inner wall of the adjusting opening 9 and is exposed from the adjusting opening 9, facilitating the manipulation of the limiting pin 10. There is an interference fit between the plugging portion 5 and the cross bar 1, and a keyway can be configured to prevent slipping. The present invention can realize the combined connection between profiled steel pipes, is convenient to use, has strong connection stability, effectively avoids coming apart under the action of external forces, and is safer and more reliable.

[0028] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0029] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. Mortise and tenon keyway crossbar crimping plug, comprising a crossbar (1), a vertical rod (2), a crimping plug (3) and a socket (4). The crimping plug (3) is formed with a plug-in portion (5) and a limiting portion (6). The crimping plug (3) is connected to the crossbar (1) through the plug-in portion (5). A channel is formed in the center of the socket (4), and the vertical rod (2) passes through the channel of the socket (4). A clamping portion (7) is formed at the edge of the socket (4). The limiting portion (6) of the crimping plug (3) is assembled with the clamping portion (7) of the socket (4). It is characterized in that, The bottom end of the clamping part (7) is provided with a recessed opening (8), the limiting part (6) is provided with a through adjusting opening (9), a limiting pin (10) is inserted into the adjusting opening (9), and the limiting pin (10) slides into the recessed opening (8) to prevent the limiting part (6) from separating from the clamping part (7), and the limiting pin (10) slides out of the recessed opening (8) to release the blocking state between the limiting part (6) and the clamping part (7); The adjusting opening (9) is provided with a first resting position (11) and a second resting position (12), and a lifting position (13) is formed between the first resting position (11) and the second resting position (12); The limiting part (6) is provided with a limiting groove (14), the width of the limiting groove (14) increases successively from top to bottom, and the width of the limiting groove (14) decreases successively from inside to outside.

2. The mortise and tenon keyway crossbar crimping plug according to claim 1, characterized in that, The outer wall of the clamping part (7) fits with the inner wall of the limiting groove (14).

3. The mortise and tenon keyway crossbar crimping plug according to claim 1, characterized in that, The limiting pin (10) is cylindrical, and the length of the limiting pin (10) is greater than the length of the adjusting opening (9).

4. The mortise and tenon keyway crossbar crimping plug according to claim 1, characterized in that, The plugging part (5) is cylindrical, and the outer wall of the plugging part (5) is inserted into the inside of the cross bar (1).

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