Bending device for construction elevator accessories

Abstract

The utility model relates to a bending device for construction hoist accessory, including support frame, the inner top wall fixed connection of support frame has the cylinder, the lower end fixed connection of cylinder has the lifting plate, the lower end fixed connection of lifting plate has the bending punch, the inner bottom wall of support frame is equipped with support station and limiting component, the upper end of support station is dug and has the bending notch corresponding with bending punch in support station, and the upper end of support station still digs two accommodation grooves, limiting component includes two locating plates located in the front and back both ends of support station respectively, the surface of locating plate digs the limiting slot, two limiting rods are equipped in the limiting slot, and the corresponding one end of two limiting rods opposite in the length direction is equipped with the installation strip, in the process of carrying out bending to the accessory of board material class, the front and back both ends of board material are fixedly limited, and simultaneously, a plurality of components for fixing do not influence the bending operation of accessory, make the board material not easy to produce the phenomenon of sliding in the process of being bent, thereby effectively improve bending stability.

Description

Technical Field

[0001] This utility model relates to the field of construction hoists, and in particular to a bending device for construction hoist accessories. Background Technology

[0002] Construction elevators are often called construction hoists, but the definition of construction hoists is broader. Construction platforms also belong to the construction hoist series. A simple construction elevator consists of several parts, including a car, drive mechanism, standard sections, wall attachments, chassis, railings, and electrical system. It is a commonly used construction machine for carrying people and goods. Due to its unique box structure, it is both comfortable and safe to ride. Construction elevators are usually used in conjunction with tower cranes on construction sites. During the production process of construction hoists, bending devices are used to bend the components.

[0003] The specification of Chinese Patent Publication No. CN221388309U discloses an angle iron bending device. When using the angle iron bending device proposed by this utility model, the operator can quickly adjust the angle of the bending punch by adjusting the components, which replaces the traditional bending device structure. It eliminates the need for the operator to replace the punch by disassembling multiple screws, making the use of the bending device more convenient and improving the working efficiency of the bending device.

[0004] During the bending process of sheet metal parts using the aforementioned bending device, the sheet metal may slip due to its low coefficient of friction or changes in the direction of force during bending. This may cause deviations in the bending angle, deformation of its outer contour, and scratches on the surface, thus affecting the bending effect of the sheet metal parts. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that during the bending process of sheet metal accessories, the sheet metal may slip due to the low coefficient of friction of the sheet metal or the change of the force direction during bending, which will affect the bending effect of the sheet metal accessories.

[0006] To solve the above problems, this utility model provides a bending device for construction hoist accessories, including a support frame. A cylinder is fixedly connected to the inner top wall of the support frame, a lifting plate is fixedly connected to the lower end of the cylinder, and a bending punch is fixedly connected to the lower end of the lifting plate. A support platform and a limiting component are provided on the inner bottom wall of the support frame. A bending groove corresponding to the bending punch is chiseled at the upper end of the support platform, and two receiving grooves are also chiseled at the upper end of the support platform. The limiting component includes two positioning plates located at the front and rear ends of the support platform, respectively. Limiting grooves are chiseled on the surface of the positioning plates, and two limiting rods are provided in the limiting grooves, longitudinally... Each of the two limiting rods has an installation strip at one end. The end of the installation strip away from the limiting rod is fixedly connected to a locking block. The end of the installation strip near the limiting rod has a groove. A movable ball is slidably connected in the groove. The movable ball is fixedly connected to the adjacent limiting rod. The positioning plate and support platform on the rear side are fixedly connected to the inner bottom wall of the support frame. The inner bottom wall of the support frame has an adjustment groove. The front end of the support frame has a screw. The rear end of the screw rotates through into the adjustment groove and rotates to connect with the inner wall of the adjustment groove. A slider is threaded on the outer surface of the screw. The upper end of the slider is fixedly connected to the front positioning plate.

[0007] In the aforementioned bending device for construction hoist accessories, during the bending process of sheet metal accessories, the front and rear ends of the sheet metal are limited and fixed. At the same time, multiple fixing components do not affect the bending operation of the accessories, making it less likely for the sheet metal to slip during the bending process, thereby effectively improving bending stability.

[0008] As a further improvement of this application, two tension springs are fixedly connected between the lifting plate and the inner top wall of the support frame. Two sliding rods are provided at the upper end of the support frame. The lower ends of the sliding rods pass through the support frame and the adjacent tension springs in sequence and are fixedly connected to the upper end of the lifting plate.

[0009] As a further improvement to this application, the cylinder is located between two tension springs and in the middle of the top of the support frame.

[0010] As a further improvement of this application, the limiting groove is semi-circular in shape, and the two longitudinally opposite mounting strips are located on the left and right sides of the bending groove, respectively.

[0011] As another improvement of this application, the card block is U-shaped and the inner wall of the card block is provided with anti-slip texture.

[0012] As another improvement of this application, the inner cavity of the card block is provided with two clamping plates. Multiple compression springs are fixedly connected to the ends of the two clamping plates that are far apart from each other. The ends of the compression springs that are far away from the clamping plates are fixedly connected to the transverse inner wall of the card block. The ends of the clamping plates that are far away from the longitudinal inner wall of the card block are arc-shaped.

[0013] In summary, in practical applications, sheet metal parts are placed on a support platform and then locked into the two rear locking blocks. Rotating the screw moves the front positioning plate backward, thus limiting the front end of the part by the two front locking blocks. The cylinder then drives the bending punch downward to bend the part. During bending, the movable ball moves inside the slide groove, and the limiting rod slides inside the limiting groove. While limiting the part, this does not hinder bending, effectively preventing slippage of sheet metal parts during bending and significantly improving bending stability. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the first embodiment of this application; Figure 2 This is a schematic diagram of the bending punch structure according to the first embodiment of this application; Figure 3 This is a schematic diagram of the limiting component structure according to the first embodiment of this application; Figure 4 This is a schematic diagram of the support platform structure according to the first embodiment of this application; Figure 5 This is a schematic diagram of the card block structure according to the first embodiment of this application; Figure 6 This is a schematic diagram of the card block movement according to the first embodiment of this application; Figure 7 This is a schematic diagram of the card block structure according to the second embodiment of this application.

[0015] Explanation of the labels in the diagram: 1. Support frame, 2. Cylinder, 3. Lifting plate, 4. Bending punch, 5. Support platform, 6. Positioning plate, 7. Limiting groove, 8. Limiting rod, 9. Mounting strip, 10. Locking block, 11. Slide groove, 12. Moving ball, 13. Adjusting groove, 14. Screw, 15. Slider, 16. Tension spring, 17. Slide rod, 18. Clamping plate, 19. Compression spring. Detailed Implementation

[0016] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0017] First implementation method: Figure 1 and Figure 2The diagram shows a bending device for construction hoist accessories, comprising a support frame 1. A cylinder 2 is fixedly connected to the inner top wall of the support frame 1. Those skilled in the art can select a suitable model of cylinder 2 according to actual needs, such as DYTZ. A lifting plate 3 is fixedly connected to the lower end of the cylinder 2, and a bending punch 4 is fixedly connected to the lower end of the lifting plate 3. A support platform 5 and a limiting component are provided on the inner bottom wall of the support frame 1. A bending groove corresponding to the bending punch 4 is chiseled at the upper end of the support platform 5 to facilitate bending of the accessories. Two receiving grooves are also chiseled at the upper end of the support platform 5. The mounting block 10 is convenient for clamping and fixing the accessories. Two tension springs 16 are fixedly connected between the lifting plate 3 and the inner top wall of the support frame 1. Two sliding rods 17 are provided at the upper end of the support frame 1. The lower end of the sliding rod 17 moves through the support frame 1 and the adjacent tension spring 16 in sequence and is fixedly connected to the upper end of the lifting plate 3. The sliding rod 17 and the tension spring 16 can effectively improve the stability of the lifting plate 3 when it moves up and down. The cylinder 2 is located between the two tension springs 16 and is located in the middle of the inner top of the support frame 1. Point A in the figure is a plate-type accessory.

[0018] Figure 3 , Figure 4 , Figure 5 and Figure 6 The limiting assembly includes two positioning plates 6 located at the front and rear ends of the support platform 5, respectively. The surface of the positioning plates 6 is carved with limiting grooves 7, which are semi-circular in shape. When the middle of the accessory is bent, both sides rotate around the bending point. The semi-circular limiting grooves 7 facilitate the movement of the locking block 10 along the bending arc. Two limiting rods 8 are provided within the limiting grooves 7. Each of the two longitudinally opposite limiting rods 8 has a mounting strip 9 at one corresponding end. The two longitudinally opposite mounting strips 9 are located on the left and right sides of the bending groove opening, respectively. A locking block 10 is fixedly connected to the end of the mounting strip 9 away from the limiting rod 8. The locking block 10 is U-shaped, and its inner wall has anti-slip textures, effectively improving the friction between the locking block 10 and the accessory. A sliding groove 11 is carved at the end of the mounting strip 9 near the limiting rod 8. A movable ball 12 is slidably connected and fixedly connected to the adjacent limiting rod 8. When the locking block 10 rotates, the movable ball 12 also moves inside the sliding groove 11, which restricts the accessory without hindering its bending. The rear positioning plate 6 and the support platform 5 are fixedly connected to the inner bottom wall of the support frame 1. The inner bottom wall of the support frame 1 is chiseled with an adjustment groove 13, and the front end of the support frame 1 is provided with a screw 14. The rear end of the screw 14 rotates through into the adjustment groove 13 and rotates to connect with the inner wall of the adjustment groove 13. The outer surface of the screw 14 is threaded with a slider 15. The upper end of the slider 15 is fixedly connected to the front positioning plate 6. By rotating the screw 14, the slider 15 can be moved back and forth, thereby facilitating the adjustment of the position of the front positioning plate 6 and making it convenient to disassemble and assemble the accessory.

[0019] When bending the parts, the sheet metal parts are placed on the support platform 5 and then locked into the two locking blocks 10 on the rear side. Rotating the screw 14 causes the positioning plate 6 on the front side to move backward, thereby limiting the front end of the parts by the two locking blocks 10 on the front side. The cylinder 2 is activated to drive the bending punch 4 to move downward to bend the parts. During the bending process, the movable ball 12 moves inside the slide groove 11, and the limiting rod 8 slides inside the limiting groove 7, thereby causing the locking blocks 10 to move with the bending of the parts. While limiting the parts, it does not hinder the bending of the parts, thereby effectively preventing the sheet metal parts from sliding during the bending process and effectively improving the bending stability.

[0020] Second implementation method: This embodiment adds a clamping plate 18 and a compression spring 19 to the first embodiment, while the rest remains the same as the first embodiment.

[0021] Figure 7 As shown: The inner cavity of the clamping block 10 is provided with two clamping plates 18. Multiple compression springs 19 are fixedly connected to the ends of the two clamping plates 18 that are far apart. The contraction of the compression springs 19 can drive the clamping plates 18 to move longitudinally, thereby clamping and fixing accessories of different thicknesses. The ends of the compression springs 19 that are far away from the clamping plates 18 are fixedly connected to the transverse inner wall of the clamping block 10. The ends of the clamping plates 18 that are far away from the longitudinal inner wall of the clamping block 10 are arc-shaped, which makes it easy to insert the accessories between the two clamping plates 18.

[0022] When the plate-type accessories are limited by the locking block 10, the accessories are located between the two clamping plates 18. The clamping plates 18 can be moved by the contraction of the compression spring 19, so that accessories of different thicknesses can be clamped and fixed.

[0023] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A bending device for construction hoist accessories, comprising a support frame (1), characterized in that: A cylinder (2) is fixedly connected to the inner top wall of the support frame (1). A lifting plate (3) is fixedly connected to the lower end of the cylinder (2). A bending punch (4) is fixedly connected to the lower end of the lifting plate (3). A support platform (5) and a limiting component are provided on the inner bottom wall of the support frame (1). A bending slot corresponding to the bending punch (4) is chiseled at the upper end of the support platform (5). Two receiving slots are also chiseled at the upper end of the support platform (5). The limiting assembly includes two positioning plates (6) located at the front and rear ends of the support platform (5), respectively. The surface of each positioning plate (6) has a limiting groove (7). Two limiting rods (8) are provided within the limiting grooves (7). Each of the longitudinally opposite limiting rods (8) has a mounting strip (9) at one end. A locking block (10) is fixedly connected to the end of each mounting strip (9) away from the limiting rod (8). A sliding groove (11) is carved at the end of each mounting strip (9) near the limiting rod (8). A movable ball (12) is slidably connected within the sliding groove (11). (12) is fixedly connected to the adjacent limiting rod (8). The positioning plate (6) and the support platform (5) on the rear side are fixedly connected to the inner bottom wall of the support frame (1). The inner bottom wall of the support frame (1) is chiseled with an adjustment groove (13). The front end of the support frame (1) is provided with a screw (14). The rear end of the screw (14) rotates through into the adjustment groove (13) and rotates to connect with the inner wall of the adjustment groove (13). The outer surface of the screw (14) is threaded with a slider (15). The upper end of the slider (15) is fixedly connected to the positioning plate (6) in front.

2. The bending device for construction hoist accessories according to claim 1, characterized in that: Two tension springs (16) are fixedly connected between the lifting plate (3) and the inner top wall of the support frame (1). The upper end of the support frame (1) is provided with two slide rods (17). The lower end of the slide rods (17) sequentially moves through the support frame (1) and the adjacent tension springs (16) and is fixedly connected to the upper end of the lifting plate (3).

3. The bending device for construction hoist accessories according to claim 2, characterized in that: The cylinder (2) is located between two tension springs (16) and is located in the middle of the top of the support frame (1).

4. The bending device for construction hoist accessories according to claim 1, characterized in that: The limiting groove (7) is semi-circular in shape, and the two longitudinally opposite mounting strips (9) are located on the left and right sides of the bending groove, respectively.

5. The bending device for construction hoist accessories according to claim 1, characterized in that: The card block (10) is U-shaped, and the inner wall of the card block (10) is provided with anti-slip texture.

6. The bending device for construction hoist accessories according to claim 1, characterized in that: The inner cavity of the card block (10) is provided with two clamping plates (18). Multiple compression springs (19) are fixedly connected to the ends of the two clamping plates (18) that are far apart. The ends of the compression springs (19) that are far away from the clamping plates (18) are fixedly connected to the transverse inner wall of the card block (10). The ends of the clamping plates (18) that are far away from the longitudinal inner wall of the card block (10) are arc-shaped.

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