Steel pipe integrated bracket and production process

Abstract

The present invention provides a steel pipe integrated bracket for connecting and fixing a safety net to a scaffold, comprising a shovel-shaped steel pipe and a stop pin; the shovel-shaped steel pipe comprises a main pipe, a shovel-shaped support plate and a connected opposing baffle plate, the main pipe, the shovel-shaped support plate and the connected opposing baffle plate are a single steel pipe integrated structure, and a limiting hole for installing the stop pin is provided on the shovel-shaped support plate. The main pipe, reinforcing ribs, shovel-shaped support plate and the connected opposing baffle plate are all integrated structures, and the stop pin is a trapezoidal structure, and the front end is inserted into the directional limiting hole of the shovel-shaped steel pipe and riveted to prevent it from falling off. This product is completed through the process of cutting steel pipes to a fixed length, flattening and punching the front end, bidirectional bending of the front baffle plate, expanding the ribs at the rear of the steel pipe, shaping the steel pipe, and riveting the stop pin. The present invention has the advantages of simple structure, convenient processing, strong and durable, convenient disassembly and assembly, and economical and practical.

Description

Technical Field

[0001] The present invention belongs to the field of construction, and specifically relates to a steel pipe integrated bracket of a scaffolding externally connected with a metal steel plate mesh and a production process. Background Art

[0002] With the consideration of environmental protection and the safety of construction workers in urban construction projects, the popularity of metal steel mesh on the facade of scaffolding is increasing. However, the steel mesh connectors connecting the scaffolding vertical poles and horizontal poles also need to be designed in conjunction. At present, they are all installed based on the connecting brackets of the vertical poles and horizontal poles. The connecting brackets used are composed of many discrete components through complex structures such as welding, cutting, and bolting.

[0003] These parts have many components, high cost, poor precision, and are difficult to install and adjust. Some connecting parts are not universal on vertical and horizontal rods. It is necessary to develop a special suspension frame that is both economical and practical and can meet various construction conditions and methods based on the characteristics of scaffolding external steel mesh. Summary of the invention

[0004] In order to complete the connection function between the scaffolding and the steel plate mesh, the present invention has recently proposed a steel pipe integrated bracket suitable for connecting the scaffolding uprights and crossbars, and its specific technical solution is as follows:

[0005] The steel pipe integrated bracket comprises a shovel-shaped steel pipe and a stop pin; the shovel-shaped steel pipe comprises a main pipe, a shovel-shaped support plate and a connected opposing baffle plate, the main pipe, the shovel-shaped support plate and the connected opposing baffle plate are a single steel pipe integrally formed structure, and a limiting hole for installing the stop pin is arranged on the shovel-shaped support plate.

[0006] The front part of the limiting hole is a vertical strip hole, and the rear part is a horizontal long strip hole. The vertical strip hole and the horizontal long strip hole are connected holes. The center line of the horizontal long strip hole and the center line of the vertical strip hole are in a deviated state. The horizontal long strip hole is divided into two parts, a short cabin and a long cabin, by the center line of the vertical strip hole. The intersection of the short cabin and the vertical strip hole is the forward passing point, and the intersection of the long cabin and the vertical strip hole is the reverse stop point. The straight-line distance between the far corner of the long cabin and the forward passing point is the forward rotation distance, and the straight-line distance between the far corner of the short cabin and the reverse stop point is the reverse rotation stop distance.

[0007] Furthermore, the stop pin is a right-angled trapezoidal structure, including a main board, a trapezoidal opening slot, a paddle, and an installation direction mark, wherein the middle connected part of the opening slot is the paddle. When the diagonal length of the paddle cross-section is less than the forward rotation distance and greater than the reverse rotation stop distance, the paddle cooperates with the limit hole to satisfy the unidirectional rotation from the vertical strip hole to the horizontal long strip hole, and can be rotated and reset, and the reverse rotation stops at the inner wall of the vertical strip hole in the direction of the long cabin.

[0008] Furthermore, the connected facing baffles are divided into an upward baffle and a downward baffle, wherein the upward baffle is formed by punching out and bending the middle of the downward baffle.

[0009] Furthermore, the connected opposing baffles are divided into an upward baffle and a downward baffle, and the upward baffle and the downward baffle are parallel structures on the left and right, and are formed by bending upward and downward respectively.

[0010] Furthermore, the ends of the connected baffles facing each other are bent into a hook shape to form a single-barb or double-barb steel pipe bracket.

[0011] Furthermore, the shovel-shaped steel pipe main pipe is provided with reinforcing ribs.

[0012] The production process of the steel pipe integrated bracket includes the following steps:

[0013] S1: Cutting steel pipes to a fixed length. The cutting size is determined according to the unfolded length of the steel pipe integrated bracket and the processing allowance;

[0014] S2: Flatten one end of the main pipe by using a press to form a shovel-shaped support plate;

[0015] S3: Punching, using a special mold to punch out the limit holes and the end strip isolation holes on the shovel-shaped support plate;

[0016] S4: The front part of the shovel-shaped support plate is bent in two directions. The front straight plates of the shovel-shaped support plate are folded into right angles or inverted hook shapes by a special mold to form a connected baffle.

[0017] In a preferred solution, it also includes expanding the main pipe, using a special mold to expand the main pipe to form protruding reinforcement ribs on the surface of the main pipe.

[0018] In a preferred solution, the above production process can adjust the processing sequence according to the characteristics of the mold and the location of the processing equipment.

[0019] Beneficial Effects

[0020] The present invention integrates complex structures, simplifies cumbersome installation processes, and programs production processes, which are specifically embodied as follows:

[0021] First, the steel pipe integrated support of the present invention integrates the main pipe, the shovel-shaped support plate and the connected opposing baffles into an integrated design, which is convenient for large-scale production of the assembly line, simple to operate and reduces production costs.

[0022] Secondly, the invention allows the stop pin to achieve directional rotation and resetting, ensuring that the right-angled facade of the stop pin is locked with the upper and lower steel mesh planes in the front, ensuring that the upper and lower steel meshes remain on the same plane, preventing installation errors.

[0023] Thirdly, the present invention only needs two parts to assemble the whole product, and after the retaining pin is riveted, it can also prevent the loss of parts, reduce the replenishment of parts, and is economical and practical.

[0024] Fourthly, the main pipe of the present invention is provided with reinforcing ribs, which not only improve the structural strength of the thin-walled steel pipe, but also prevent the steel pipe integrated bracket from slipping outwards, achieving multiple functions at one stroke and saving material costs.

[0025] Fifth, the present invention can be used universally on scaffolding uprights and crossbars, is flexible to install, and the front and rear installation distances can be adjusted, making it more convenient to install complex scaffolding engineering steel plate meshes.

[0026] Sixth, the present invention can achieve closed-type constraints on the steel plate mesh frame, completely solving the potential safety hazard of the mesh falling off due to wind load. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the double hook structure built into the steel pipe integrated bracket;

[0028] Figure 2 Design a large-scale drawing for the limit hole structure;

[0029] Figure 3 This is a large-scale drawing of the stop pin structure;

[0030] Figure 4 This is a working principle diagram of the stop pin paddle rotating in the forward direction in the limit hole;

[0031] Figure 5 The schematic diagram of the working principle of the stop pin paddle in the reverse rotation stop position in the limit hole;

[0032] Figure 6 It is a schematic diagram of the structure of the steel pipe integrated support with double hook baffles arranged side by side and facing each other;

[0033] Figure 7 This is a large-scale drawing of the combined structure of a steel pipe integrated bracket with a built-in single hook baffle;

[0034] Figure 8 It is a large-scale drawing of the vertical and horizontal working state of the stop pin in the limiting hole;

[0035] Fig. 9 Installation drawing for the application of double hook baffle built into the steel pipe integrated bracket;

[0036] Fig.10 This is the large-scale drawing for the application and installation of the steel pipe integrated bracket and parallel double hook bracket;

[0037] Fig.11 This is the production process flow chart of steel pipe integrated bracket.

[0038] Main component symbols:

[0039] Main pipe 1; shovel-shaped support plate 2; limit hole 3; vertical long hole 3-1; horizontal long hole 3-2; long cabin 3-2-1; short cabin 3-2-2; connected opposite baffles 4; straight baffle 4-1; barb baffle one 4-2; barb baffle two 4-3; reinforcing rib 5; stop pin 6; main board 6-1; plate rib 6-2; opening groove 6-3; paddle 6-4; pin hole 6-5; opposite parallel bulges 6-6, installation direction mark 6-7; steel plate mesh 7; mesh 7-1, steel plate mesh frame 7-2; scaffolding upright 8; cross fastener 9; horizontal rod 10; cotter pin 11. DETAILED DESCRIPTION

[0040] The steel pipe integrated support of the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0041] The steel pipe integrated bracket includes a shovel-shaped steel pipe and a stop pin; the shovel-shaped steel pipe includes a main pipe 1, a shovel-shaped support plate 2 and a connected opposing baffle plate 4, the main pipe 1, the shovel-shaped support plate 2 and the connected opposing baffle plate 4 are a single steel pipe integrally formed structure, and a limiting hole 3 for installing the stop pin is provided on the shovel-shaped support plate 2.

[0042] Embodiment 1,

[0043] In this embodiment, the front part of the limiting hole 3 is a vertical strip hole 3-1, and the rear part is a transverse long hole 3-2. The vertical strip hole 3-1 and the transverse long hole 3-2 are connecting holes. The center line of the transverse long hole 3-2 is in a deviated state from the center line of the vertical strip hole 3-1. The transverse long hole 3-2 is divided into a long cabin 3-2-1 and a short cabin 3-2-2 by the center line of the vertical strip hole 3-1. The intersection of the short cabin 3-2-2 and the vertical strip hole 3-1 is the forward passing point R, and the intersection of the long cabin 3-2-1 and the vertical strip hole 3-1 is the reverse stop point r. The straight-line distance between the far corner T of the long cabin 3-2-1 and the forward passing point R is the forward rotation distance f, and the straight-line distance between the far corner S of the short cabin 3-2-2 and the reverse stop point r is the reverse rotation stop distance g.

[0044] The stop pin 6 is a right-angled trapezoidal structure, including a main board 6-1, a trapezoidal opening slot 6-3, a paddle 6-4, and an installation direction mark 6-7, wherein the middle connected part of the opening slot 6-3 is the paddle 6-4. When the cross-sectional diagonal length c of the paddle 6-4 is less than the forward rotation distance f and greater than the reverse rotation stop distance g, the paddle 6-4 cooperates with the limiting hole 3 to satisfy the unidirectional rotation from the vertical strip hole 3-1 to the horizontal long strip hole 3-2, and can be rotated and reset, and the reverse rotation stops at the inner wall of the vertical strip hole 3-1 in the direction of the long cabin 3-2-1.

[0045] Assembly stop pin:

[0046] like Figure 1 , Figure 3 , Figure 6 , Figure 7, Figure 8 As shown, the stop pin 6 with the installation directional mark 6-7 at a right angle facing forward and one end of the open groove 6-3 is inserted into the vertical long hole 3-1 of the limiting hole 3 of the steel pipe integrated bracket, and is placed in a special stamping die to stretch out two opposite and parallel bulges 6-6 to ensure that the stop pin 6 will not automatically fall out of the limiting hole 3 under any circumstances; the pin hole 6-5 can also be pre-punched out at the narrow head of the stop pin 6, and a rivet or cotter pin 11 can be assembled to prevent the stop pin 6 from falling out of the limiting hole 3.

[0047] Working principle of the stop pin paddle in the limit hole:

[0048] like Figure 2 to Figure 5 , Figure 8 As shown, the length of the vertical strip hole 3-1 is A, and the width is B; the length of the horizontal strip hole 3-2 is e, and the width is d; the horizontal strip hole 3-2 is divided into a long cabin 3-2-1 and a short cabin 3-2-2 by the center line of the vertical strip hole 3-1, the intersection of the short cabin 3-2-2 and the vertical strip hole 3-1 is the forward passing point R, the intersection of the long cabin 3-2-1 and the vertical strip hole 3-1 is the reverse stop point r, the straight-line distance between the far corner T of the long cabin 3-2-1 and the forward passing point R is the forward rotation distance f, and the straight-line distance between the far corner S of the short cabin 3-2-2 and the reverse stop point r is the reverse rotation stop distance g.

[0049] The narrow end of the stopper pin 6 is provided with a trapezoidal opening groove 6-3, the middle connected part of the opening groove 6-3 is a paddle 6-4, the cross-sectional width of the paddle 6-4 is a, the thickness is b, and the diagonal length is c;

[0050] The necessary conditions for the stopper pin 6 to be inserted into the vertical strip hole 3-1 and the horizontal strip hole 3-2 are: B>b, d>b, (A+d)>c, e>c;

[0051] The necessary condition for the paddle 6 - 4 to be able to directional rotate in the limiting hole 3 is: f>c;

[0052] The necessary condition for the paddle 6 - 4 to be able to reversely stop in the limiting hole 3 is: c>g;

[0053] When the condition f>c>g is met, such as Figure 4 As shown, the paddle 6-4 rotates from the vertical strip hole 3-1 to the forward direction through the point R and enters the horizontal long strip hole 3-2, as shown in FIG. Figure 4 ①→④ in the figure, when the two ends of the paddle 6-4 rotate to the far corner S of the short cabin 3-2-2 and the reverse stop point r of the long cabin 3-2-1 respectively, they reach the rotation dead point and stop, such as Figure 4 ⑤, the reverse operation is performed to reset;

[0054] When the condition f>c>g is met, such as Figure 5As shown in ① and ②, when the paddle 6-4 rotates from the vertical strip hole 3-1 to the reverse stop point r, it stops at the inner wall of the vertical strip hole 3-1 in the direction of the long cabin 3-2-1.

[0055] Embodiment 2,

[0056] Built-in double hook baffle application installation process:

[0057] like Figure 1 to Figure 5 , Figure 8 , Fig. 9 As shown, firstly, the steel pipe integrated bracket is preliminarily installed at the corresponding position of the scaffolding vertical pole 8 or the horizontal pole 10 with the cross fastener 9 according to the installation layout of the steel plate mesh 7, and then the opening groove 6-3 of the steel pipe integrated bracket stop pin 6 is pulled to the tail of the limit hole 3 and lifted so that the opening groove 6-3 is stuck in the middle of the shovel-shaped support plate 2 and rotated 90 degrees from the vertical long hole 3-1 to the horizontal long hole 3-2, so that the stop pin completely enters the horizontal long hole 3-2, and the stop pin 6 is changed from a vertical structure to a plane structure, thereby freeing up space for installing the safety net 7, and then the upper and lower net frames 7-2 of a set of upper and lower safety nets 7 are connected. Place them respectively in the installation space between the two adjacent steel pipe integrated brackets, the barb baffle plate 1 4-2 or the barb baffle plate 2 4-3 and the stop pin plane state and push them forward into the inner groove of the barb baffle plate 1 4-2 or the barb baffle plate 2 4-3, and then rotate the stop pin 6 in the forward limit hole 3 in the opposite direction, so that the vertical structure of the stop pin 6 enters the vertical long hole 3-1 and knocks it down with a hammer, so that the safety net 7 of the upper and lower structures is clamped between the barb baffle plate 1 4-2 or the barb baffle plate 2 4-3 and the stop pin 6 and locked, and the same operation can complete the installation and fixation of multiple adjacent safety nets 7 on the left and right, until each layer is installed and then continue to install the upper mesh in the same way until the entire vertical steel plate mesh is installed, and the opposite operation is a disassembly process.

[0058] Example 3, installation process of the parallel double hook bracket:

[0059] like Figure 2 to Figure 6 , Figure 8 , Fig.10 As shown, the installation method is basically the same as the installation process of the built-in double-hook baffle application, and will not be repeated.

[0060] Example 5, production process of steel pipe integrated support:

[0061] like Fig.11 As shown, S1: Cutting the steel pipe to a fixed length, after determining the cutting size according to the unfolded length of the steel pipe integrated bracket and the processing allowance, the main pipe 1 is cut to a fixed length;

[0062] S2: Flatten one end of the main pipe, and use a press to flatten one end of the main pipe to form a shovel-shaped support plate 2, so as to facilitate the subsequent punching, grooving and other processes on the plane of the shovel-shaped support plate 2;

[0063] S3: Punching (including punching out isolation zone), using a special mold to punch out the limit hole 3 and the end long strip hole on the shovel-shaped support plate 2, including the built-in double hook structure isolation zone;

[0064] S4: The front part of the shovel-shaped support plate 2 is bent in two directions, and the straight plates of the front part of the shovel-shaped support plate 2 are folded into right angles or barbed shapes by a special mold to form conjoined facing baffles, such as a straight baffle 4-1, a barbed baffle 1 4-2 and a barbed baffle 2 4-3;

[0065] For thin-walled steel pipes, the main pipe 1 also needs to be expanded, and the tail of the main pipe 1 is expanded using a special mold to form protruding reinforcement ribs 5 on the surface of the main pipe 1.

[0066] In order to prevent the stop pin 6 from being separated from the steel pipe integrated bracket, the stop pin 6 needs to be assembled in the limiting hole 3. The assembly process has been described above.

[0067] The production process of the steel pipe integrated bracket can adjust the processing sequence according to the characteristics of the mold and the location of the processing equipment.

[0068] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the patent of the present invention.

Claims

1. Steel pipe integrated bracket, characterized by: It includes a shovel-shaped steel pipe and a stop pin; the shovel-shaped steel pipe includes a main pipe, a shovel-shaped support plate and a connected opposing baffle plate, the main pipe, the shovel-shaped support plate and the connected opposing baffle plate are a single steel pipe integrally formed structure, and a limiting hole for installing the stop pin is provided on the shovel-shaped support plate; The front part of the limit hole is a vertical strip hole, and the rear part is a horizontal long strip hole. The vertical strip hole and the horizontal long strip hole are connected holes. The center line of the horizontal long strip hole is in a deviated state from the center line of the vertical strip hole. The horizontal long strip hole is divided into two parts, a short cabin and a long cabin, by the center line of the vertical strip hole. The intersection of the short cabin and the vertical strip hole is the forward passing point, and the intersection of the long cabin and the vertical strip hole is the reverse stop point. The straight-line distance between the far corner of the long cabin and the forward passing point is the forward rotation distance, and the straight-line distance between the far corner of the short cabin and the reverse stop point is the reverse rotation stop distance; The stop pin is a right-angled trapezoidal structure, including a main board, a trapezoidal opening slot, a paddle, and an installation directional indicator, wherein the middle connected part of the opening slot is the paddle, and when the length of the paddle cross-section diagonal is less than the forward rotation distance and greater than the reverse rotation stop distance, the paddle cooperates with the limit hole to satisfy the unidirectional rotation from the vertical strip hole to the horizontal long strip hole, and can be rotated back to reset, and the reverse rotation stops at the inner wall of the vertical strip hole in the direction of the long cabin; The connected facing baffles are divided into an upward baffle and a downward baffle, wherein the upward baffle is formed by punching out and bending the middle of the downward baffle.

2. The steel pipe integrated bracket according to claim 1, characterized in that: The connected facing baffles are divided into an upward baffle and a downward baffle. The upward baffle and the downward baffle are parallel structures on the left and right and are formed by bending upward and downward respectively.

3. The steel pipe integrated bracket according to claim 1, characterized in that: The ends of the connected baffles facing each other are bent into a hook shape to form a single-hook or double-hook steel pipe bracket.

4. The steel pipe integrated bracket according to claim 1, characterized in that: The shovel-shaped steel pipe main pipe is provided with reinforcing ribs.

5. The production process of the steel pipe integrated bracket according to any one of claims 1 to 4, characterized in that: The following steps are included: S1: Cutting steel pipes to a fixed length. The cutting size is determined according to the unfolded length of the steel pipe integrated bracket and the processing allowance; S2: Flatten one end of the main pipe by using a press to form a shovel-shaped support plate; S3: Punching, using a special mold to punch out the limit holes and the end strip isolation holes on the shovel-shaped support plate; S4: The front part of the shovel-shaped support plate (2) is bent in two directions, and the front straight plates of the shovel-shaped support plate are folded into right angles or inverted hook shapes by a special mold to form a connected baffle.

6. The production process according to claim 5, characterized in that: It also includes main pipe expansion, which uses a special mold to expand the main pipe to form protruding reinforcement ribs on the surface of the main pipe.

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