A duct hoisting device

Abstract

This utility model relates to the field of duct hoisting technology, specifically disclosing a duct hoisting device, including: a movable base, a lifting plate inside the movable base, a support plate fixedly connected to the top of one side of the movable base, a winch fixedly connected to the top of the support plate, a stabilizing block fixedly connected to one end of the bottom side of the movable base, a hydraulic telescopic rod fixedly and penetrating inside the stabilizing block, gears meshing on the surface of a toothed plate, a connecting rod fixedly connected to one side of the top of the rack, a movable pressing plate fixedly connected to the top of the connecting rod, two sliding grooves inside the lifting plate, and a rubber anti-slip pad on one side of the fixed pressing plate. This utility model, through the combined use of the lifting plate, toothed plate, rack, gear, movable pressing plate, sliding grooves, and guide rollers, enables the duct to be lifted to a certain height during hoisting, ensuring the stability of the duct during the lifting process, and adapting to the clamping of ducts of different diameters, exhibiting high flexibility.

Description

Technical Field

[0001] This utility model belongs to the field of duct hoisting technology, specifically relating to a duct hoisting device. Background Technology

[0002] Duct installation is a crucial step in ventilation and air conditioning engineering. Its core process includes determining the elevation, installing supports and hangers, hoisting the ducts, connecting and fixing them, and inspecting and debugging. Strict adherence to specifications is required to ensure safety and quality.

[0003] Chinese patent CN221343765U discloses a duct hoisting device, including a movable base plate. A lifting frame is fixedly connected to the rear end of the upper surface of the movable base plate. A crane is fixedly connected to the lower outer wall of the rear end of the lifting frame. A movable groove is formed on the outer wall of the front end of the lifting frame. Sliding grooves are formed on the inner walls of both sides of the movable groove. A lifting plate is slidably connected inside the sliding groove. A lifting block is fixedly connected to the middle of the rear end of the upper surface of the lifting plate. Sliding blocks are fixedly connected to the outer walls of both rear ends of the lifting plate. A stabilizing block is fixedly connected to the lower outer wall of the sliding block near the center of the lifting plate. In this invention, the crane fixed on the lifting frame allows the lifting plate to slide through the sliding groove via the sliding blocks. Simultaneously, the load-bearing frame at the bottom of the lifting plate increases the load on the lifting plate, thereby improving the stability of the lifting frame.

[0004] However, while the above-mentioned technical solution can achieve the purpose of hoisting air ducts, the placement slots and blocks on the lifting plate, although preventing the air ducts from moving on the lifting plate, may have limited applicability to air ducts of different specifications and shapes. For example, some irregularly shaped air ducts may not be able to be placed well in the placement slots or be effectively blocked by the blocks, which may cause the air ducts to fall when being hoisted upwards, causing damage to the air ducts and resulting in unnecessary losses. Therefore, it has certain limitations in use. Utility Model Content

[0005] The purpose of this utility model is to provide a duct hoisting device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A duct hoisting device includes: a movable base, a lifting plate inside the movable base, a support plate fixedly connected to the top of one side of the movable base, a winch fixedly connected to the top of the support plate, a stabilizing block fixedly connected to one end of the bottom side of the movable base, a hydraulic telescopic rod fixedly and penetrating inside the stabilizing block, a toothed plate fixedly connected to the output end of the hydraulic telescopic rod, a gear meshing on the surface of the toothed plate, and the bottom end of the gear rotatably disposed inside the movable base, a guide frame fixedly connected to the other end of the bottom side of the lifting plate, a rack meshing on the surface of the gear, and the surface of the rack slidingly penetrating inside the guide frame, a connecting rod fixedly connected to one side of the top of the rack, a movable pressing plate fixedly connected to the top of the connecting rod, two sliding grooves opened inside the lifting plate, and the surface of the connecting rod penetrating inside the sliding grooves, a fixed pressing plate fixedly connected to one side of the top of the lifting plate, and a rubber anti-slip pad provided on one side of the fixed pressing plate.

[0008] Preferably, a connecting block is fixedly connected to the middle of one side of the top of the lifting plate, and a hanging ring is fixedly connected to the top of the connecting block.

[0009] Preferably, a steel wire rope is wound around the surface of the winch, and the bottom end of the steel wire rope is fixedly connected to the surface of the hanging ring.

[0010] Preferably, a stabilizing frame is fixedly connected to the top of the movable base, and a vertical plate is fixedly connected to one side of the top of the stabilizing frame. A guide hole is provided inside the vertical plate, and the surface of the steel wire rope slides through the inside of the guide hole.

[0011] Preferably, the stabilizing frame is internally rotatably equipped with a guide roller, and the surface of the guide roller is in contact with the surface of the wire rope.

[0012] Preferably, the movable base has two guide grooves inside, and a guide block is slidably connected inside the guide groove, with one side of the guide block being fixedly connected to one side of the lifting plate.

[0013] Preferably, the rack has a slot inside, a crossbar is fixedly connected to the inner side wall of the slot, a buffer spring is fixedly connected to one side of the inner side wall of the slot, and one end of the buffer spring is fixedly connected to the surface of the connecting rod.

[0014] Preferably, a control panel is fixedly connected to the top of the surface of the movable base, and the control panel is electrically connected to the winch and the hydraulic telescopic rod respectively.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) When the staff places the air duct between the movable extrusion plate and the fixed extrusion plate, the movable extrusion plate moves closer to the fixed extrusion plate, which can clamp the air duct stably and prevent it from shaking and falling during the lifting process, ensuring the stability of the lifting process and adapting to the air duct diameter within a certain range. At the same time, rubber anti-slip pads are provided on one side of both the movable and fixed extrusion plates, which further improves the stability of the air duct when it is clamped. The rubber anti-slip pads are fixed by the adhesive layer, which makes them easy to tear and replace later, improving the stability during subsequent clamping. If the hydraulic telescopic rod has too fast an initial speed or continuous extrusion when the movable extrusion plate extrudes the air duct, it can be buffered by the crossbar and buffer spring to avoid continuous extrusion by the movable extrusion plate, which plays a certain protective role for the air duct.

[0017] (2) The winch lifts the lifting plate with a wire rope, making it easier to lift the air duct to a certain height. The guide roller, guide hole and guide ball play a certain guiding role when in use, making the wire rope smoother when pulled, and ensuring that the air duct is more stable when hoisted. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a perspective view of the connecting block of this utility model;

[0020] Figure 3 This is a perspective view of the toothed plate of this utility model;

[0021] Figure 4 This is a perspective view of the rack of this utility model;

[0022] Figure 5 This is a perspective view of the buffer spring of this utility model;

[0023] In the diagram: 1. Movable base; 2. Lifting plate; 3. Winch; 4. Hydraulic telescopic rod; 5. Toothed plate; 6. Gear; 7. Guide frame; 8. Rack; 9. Movable extrusion plate; 10. Sliding groove; 11. Fixed extrusion plate; 12. Connecting block; 13. Wire rope; 14. Stabilizing frame; 15. Vertical plate; 16. Guide roller; 17. Guide groove; 18. Empty groove; 19. Crossbar; 20. Buffer spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] Please see Figures 1 to 5 As shown, a duct hoisting device includes a movable base 1, a lifting plate 2 inside the movable base 1, a support plate fixedly connected to the top of one side of the movable base 1, a winch 3 fixedly connected to the top of the support plate, a stabilizing block fixedly connected to one end of the bottom side of the movable base 1, a hydraulic telescopic rod 4 fixedly and penetrating inside the stabilizing block, a toothed plate 5 fixedly connected to the output end of the hydraulic telescopic rod 4, a gear 6 meshing on the surface of the toothed plate 5, and the bottom end of the gear 6 rotatably disposed inside the movable base 1, a guide frame 7 fixedly connected to the other end of the bottom side of the lifting plate 2, a rack 8 meshing on the surface of the gear 6, and the surface of the rack 8 sliding and penetrating inside the guide frame 7, a connecting rod fixedly connected to one side of the top of the rack 8, a movable pressing plate 9 fixedly connected to the top of the connecting rod, two sliding grooves 10 opened inside the lifting plate 2, and the surface of the connecting rod penetrating inside the sliding grooves 10, a fixed pressing plate 11 fixedly connected to one side of the top of the lifting plate 2, and a rubber anti-slip pad provided on one side of the fixed pressing plate 11.

[0027] The mobile base 1 consists of two push handles and casters with brakes. The push handles and casters with brakes are existing technologies and will not be described in detail. The lifting plate 2 can lift the structure above it, especially when placing the air duct, allowing it to be raised to a certain height for easier installation. The stabilizing block facilitates the fixing of the hydraulic telescopic rod 4. The hydraulic telescopic rod 4 allows the toothed plate 5 to move back and forth, driving the meshing gear 6 to rotate. The gear 6, when rotating, drives the rack 8 to slide left and right, which in turn drives the movable pressing plate 9 to move left and right via the connecting rod. When the worker places the air duct between the movable pressing plate 9 and the fixed pressing plate 11, the movable pressing plate 9 continuously moves closer to the fixed pressing plate 11, ensuring the air duct is clamped stably and preventing shaking and falling during lifting, thus ensuring stability during the lifting process. Rubber anti-slip pads further improve the stability of the air duct when clamped. A rubber anti-slip pad is also provided on one side of the movable pressing plate 9, fixed by an adhesive layer for easy removal and replacement later.

[0028] A connecting block 12 is fixedly connected to the middle of one side of the top of the lifting plate 2, and a hanging ring is fixedly connected to the top of the connecting block 12. The connecting block 12 is designed to fix the hanging ring to its top.

[0029] A steel wire rope 13 is wound and connected to the surface of the winch 3, and the bottom end of the steel wire rope 13 is fixedly connected to the surface of the hanging ring. The hanging ring allows the bottom end of the steel wire rope 13 to be fixedly connected to it, which facilitates subsequent lifting, thereby causing the lifting plate 2 to rise.

[0030] A stabilizing frame 14 is fixedly connected to the top of the mobile base 1. A vertical plate 15 is fixedly connected to one side of the top of the stabilizing frame 14. A guide hole is provided inside the vertical plate 15, and the surface of the steel wire rope 13 slides through the inside of the guide hole.

[0031] The stabilizing frame 14 is used to fix the vertical plate 15. The vertical plate 15 is used to open the guide hole, which allows the wire rope 13 to play a certain guiding role when pulled. It should be noted that the inner wall of the guide hole is equipped with guide balls, which makes the wire rope 13 more smoothly pulled.

[0032] The stabilizing frame 14 has a guide roller 16 rotatably mounted inside, and the surface of the guide roller 16 is in contact with the surface of the wire rope 13. The guide roller 16 provides a certain guiding effect for the wire rope 13 during winding and unwinding, and its function is the same as that of the guide hole, making the wire rope 13 smoother when pulled.

[0033] The movable base 1 has two guide grooves 17 inside, and guide blocks are slidably connected inside the guide grooves 17. One side of the guide block is fixedly connected to one side of the lifting plate 2. The guide grooves 17 allow the guide blocks to slide inside them, thereby making the lifting plate 2 more stable when sliding up and down.

[0034] The rack 8 has a slot 18 inside, and a crossbar 19 is fixedly connected to the inner wall of the slot 18. A buffer spring 20 is fixedly connected to one side of the inner wall of the slot 18, and one end of the buffer spring 20 is fixedly connected to the surface of the connecting rod. The slot 18 allows the crossbar 19 to be fixed to its inner wall. The surface of the connecting rod slides through the surface of the crossbar 19, and the buffer spring 20 is also sleeved on the surface of the crossbar 19. When the connecting rod drives the movable extrusion plate 9 to move towards the fixed extrusion plate 11, after moving to a certain extent and the movable extrusion plate 9 extrudes the duct, if the rack 8 continues to move forward, the connecting rod will extrude the buffer spring 20, causing it to move to the right through the crossbar 19. This provides a certain buffering effect, preventing the rack 8 from continuing to move and causing some of the more fragile duct to be squeezed and deformed.

[0035] A control panel is fixedly connected to the top of the surface of the mobile base 1, and the control panel is electrically connected to the winch 3 and the hydraulic telescopic rod 4 respectively.

[0036] The working principle of this utility model is as follows: The operator moves the movable base 1 to a suitable position beforehand. Then, the operator places the duct to be hoisted on the lifting plate 2, positioned between the fixed pressing plate 11 and the movable pressing plate 9. At this time, the operator controls the hydraulic telescopic rod 4. The output end of the hydraulic telescopic rod 4 drives the toothed plate 5 to move back. The toothed plate 5 then drives the gear 6 to rotate. The rotation of the gear 6 drives the meshing rack 8 to move to the left. The rack 8 then drives the connecting rod to move to the left, which in turn drives the movable pressing plate 9 to move to the left through the sliding groove 10, continuously approaching the fixed pressing plate 11 until the duct is clamped and fixed. If the movable pressing plate 9 clamps the duct... After holding, if the staff does not close the hydraulic telescopic rod 4 in time, the movable extrusion plate 9 will continue to extrude force on the duct, which may cause local stress deformation of some of the more fragile ducts. At this time, the connecting rod will extrude force on the buffer spring 20, compressing it. This will prevent the movable extrusion plate 9 from extruding force on the duct to a certain extent, thus providing some protection. The staff will then control the winch 3 to work, which will pull the wire rope 13. At this time, the bottom end of the wire rope 13 will lift the hanging ring and the connecting block 12, thereby causing the lifting plate 2 to move upward. Then, the lifting plate 2 will slide upward in the guide groove 17 through the guide block until it reaches the appropriate height. The staff can then remove the duct and install it.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A duct hoisting device, characterized in that, include: A movable base (1) is provided with a lifting plate (2) inside. A support plate is fixedly connected to the top of one side of the movable base (1). A winch (3) is fixedly connected to the top of the support plate. A stabilizing block is fixedly connected to one end of the bottom side of the movable base (1). A hydraulic telescopic rod (4) is fixedly and penetrates the inside of the stabilizing block. A toothed plate (5) is fixedly connected to the output end of the hydraulic telescopic rod (4). A gear (6) meshes on the surface of the toothed plate (5), and the bottom end of the gear (6) is rotatably disposed inside the movable base (1). The lifting plate (2) is located on one side of the bottom side. The other end is fixedly connected to a guide frame (7), the surface of the gear (6) meshes with a rack (8), and the surface of the rack (8) slides through the interior of the guide frame (7). A connecting rod is fixedly connected to one side of the top of the rack (8), and a movable pressing plate (9) is fixedly connected to the top of the connecting rod. Two sliding grooves (10) are opened inside the lifting plate (2), and the surface of the connecting rod passes through the interior of the sliding grooves (10). A fixed pressing plate (11) is fixedly connected to one side of the top of the lifting plate (2), and a rubber anti-slip pad is provided on one side of the fixed pressing plate (11).

2. An air duct hoisting device according to claim 1, characterized in that: A connecting block (12) is fixedly connected to the middle of one side of the top of the lifting plate (2), and a hanging ring is fixedly connected to the top of the connecting block (12).

3. A duct hoisting arrangement according to claim 2, characterised in that: The surface of the winch (3) is wound with a wire rope (13), and the bottom end of the wire rope (13) is fixedly connected to the surface of the hanging ring.

4. An air duct hoisting device according to claim 3, characterized in that: The top of the movable base (1) is fixedly connected to a stabilizing frame (14), and a vertical plate (15) is fixedly connected to one side of the top of the stabilizing frame (14). A guide hole is provided inside the vertical plate (15), and the surface of the steel wire rope (13) slides through the inside of the guide hole.

5. A duct hoist according to claim 4, wherein: The stabilizing frame (14) is internally rotatably equipped with a guide roller (16), and the surface of the guide roller (16) is in contact with the surface of the wire rope (13).

6. An air duct hoisting device according to claim 1, characterized in that: The movable base (1) has two guide grooves (17) inside. A guide block is slidably connected inside the guide groove (17), and one side of the guide block is fixedly connected to one side of the lifting plate (2).

7. The duct hoisting device according to claim 1, characterized in that: The rack (8) has a slot (18) inside. A crossbar (19) is fixedly connected to the inner wall of the slot (18). A buffer spring (20) is fixedly connected to one side of the inner wall of the slot (18), and one end of the buffer spring (20) is fixedly connected to the surface of the connecting rod.

8. The duct hoisting device according to claim 1, characterized in that: A control panel is fixedly connected to the top of the surface of the mobile base (1), and the control panel is electrically connected to the winch (3) and the hydraulic telescopic rod (4) respectively.

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