Hoisting damping buffer device

Abstract

The utility model discloses a hoisting damping buffer device which comprises a hoisting device and damping buffer devices, a hollow cavity is formed in the hoisting device, a connecting plate is fixedly arranged in the cavity, and the two damping buffer devices are arranged on the two sides of the connecting plate respectively. The first end of each damping buffer device is connected with the connecting plate, the second end of each damping buffer device is connected with the first end of the first steel wire rope, and the second end of the first steel wire rope penetrates through the cavity of the hoisting device and is connected with the lifting hook; according to the hoisting damping buffer device, the impact force generated in the process that the large steel formwork is separated from the concrete structure body can be reduced, and the safety risk generated in the process that the large steel formwork is dismantled is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of template hoisting, in particular to a hoisting damping buffer device. Background Art

[0002] Water conservancy and water transport construction involves the construction of large steel formworks. Large steel formworks are large in size (generally 1~3m in length and 1~2m in width), heavy in weight, and inconvenient to lift and transport. During the construction of certain structures (such as dams, columns, etc.), large steel formworks need to be lifted in the air to a preset position for installation. After the concrete in the space enclosed by the large steel formworks reaches the demolding strength, the large steel formworks need to be removed.

[0003] During the dismantling process of large steel formwork, one end of the wire rope is usually put on the hook of the lifting device (such as a crane, tower crane, etc.), and the other end is put on the large steel formwork. The lifting device and wire rope are used for dismantling. The large steel formwork will generate a large impact force in the process of separating from the concrete structure. Under the action of the impact force, the wire rope may break or the lifting device may overturn, causing the large steel formwork to fall from a high altitude, affecting the safety during the dismantling process of the large steel formwork. Utility Model Content

[0004] At least one of the purposes of the present utility model is to provide a hoisting damping buffer device to overcome the problems existing in the above-mentioned prior art, which can reduce the impact force of large steel formworks when they are separated from concrete structures and reduce the safety risks during the removal of large steel formworks.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model includes the following aspects.

[0006] A hoisting damping buffer device comprises: a hoisting device and a damping buffer device, wherein a hollow cavity is arranged in the hoisting device, a connecting plate is fixedly arranged inside the cavity, two damping buffer devices are respectively arranged on both sides of the connecting plate, a first end of each damping buffer device is connected to the connecting plate, a second end of each damping buffer device is connected to the first end of a first steel wire rope, and the second end of the first steel wire rope passes through the cavity of the hoisting device.

[0007] Preferably, the lifting device is in the shape of a rectangular structure as a whole, including first side panels arranged opposite to each other, second side panels are respectively arranged at both ends of the first side panels, and both ends of each second side panel are respectively fixedly connected to the first side panel, and the space formed by the first side panel and the second side panel is a cavity; the connecting plate is arranged in the middle of the cavity, and the two ends of the connecting plate are respectively fixedly connected to the first side panel.

[0008] Preferably, two connecting rods are respectively provided inside the cavity, and the two connecting rods are respectively provided near the left and right ends of the cavity, the connecting rods are perpendicular to the first side plate, the two ends of the connecting rods are respectively fixedly connected to the first side plate, the connecting rods are provided near the top of the first side plate, and a lifting ear is fixedly provided in the middle of each connecting rod.

[0009] Preferably, the damping buffer device includes a cylinder body, a buffer chamber connecting the two ends of the cylinder body is coaxially arranged in the cylinder body, a damping piston is arranged in the buffer chamber, the first end of the damping piston extends into the buffer chamber from the second end of the cylinder body, the second end of the damping piston is connected to the second end of the cylinder body through a pressure cover, and the first end of the first steel wire rope is detachably connected to the second end of the damping piston.

[0010] Preferably, the first end of the damping piston is provided with a piston head, and the piston head is cooperatively arranged in the buffer chamber; the damping piston includes a piston rod and a compression spring, the first end of the piston rod is fixedly connected to the piston head, and the piston rod is provided with a positioning sleeve near the second end, and the positioning sleeve is detachably connected to the pressure cover, the first end of the compression spring is connected to the positioning sleeve, and the second end of the compression spring is connected to the piston head.

[0011] Preferably, a shaft sleeve is provided at the connection position between the positioning sleeve, the pressure cover and the piston rod, the shaft sleeve is sleeved on the piston rod, a part of the shaft sleeve is embedded in the shaft sleeve groove of the positioning sleeve, and the other part is embedded in the shaft sleeve groove of the pressure cover; a dust ring and a combined sealing ring are also provided at the connection position between the pressure cover and the piston rod, the dust ring is sleeved on the piston rod, and the combined sealing ring is sleeved on the dust ring; an O-ring is provided at the connection position between the pressure cover and the cylinder body.

[0012] Preferably, a plurality of connecting through holes are circumferentially arranged on the connecting plate near the edge position, and the arrangement positions of the connecting through holes correspond to the positions of the connecting through holes on the first end of the cylinder body. The first ends of the cylinder bodies of the two damping and buffering devices are detachably connected to the connecting plate through a bolt assembly.

[0013] Preferably, pulley assemblies are detachably provided at the left and right end positions inside the cavity of the lifting device, respectively, and the pulley assembly includes a pulley support and a pulley, the pulley support is detachably provided on the second side plate through a bolt assembly, and the pulley is installed on the pulley support, and the second end of the first steel wire rope passes around the pulley, extends out of the bottom of the lifting device, and is connected to the hook.

[0014] Preferably, the first end of the first steel wire rope is fixed by a steel wire rope clamp after passing around the shackle, and the shackle is detachably arranged on the second end of the piston rod.

[0015] Preferably, a rib plate is provided at the connection position between the first side plate and the second side plate.

[0016] In summary, due to the adoption of the above technical solution, the utility model has at least the following beneficial effects:

[0017] By setting a hoisting device, setting two buffer damping devices in the cavity of the hoisting device, setting a first steel wire rope on each of the two damping buffer devices, and setting a hook on the first steel wire rope, when the hook is connected to the template, the template can be lifted by the hoisting device, and the damping buffer device can reduce the impact force generated by the template detaching from the concrete structure, thereby reducing the safety risk during the removal of large steel templates. By setting pulley assemblies at both ends of the cavity of the hoisting device, the length of the first steel wire rope can be adjusted by the pulley assemblies, so that the length of the steel wire rope between the damping buffer device and the template is within a preset range, thereby improving the safety during the template lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of a hoisting damping buffer device of an exemplary embodiment of the utility model.

[0019] Figure 2 It is a top view of the lifting damping buffer device of an exemplary embodiment of the utility model.

[0020] Figure 3 yes Figure 1 An enlarged schematic diagram of the connection structure between the lifting device and the buffer damping device of the lifting damping buffer device.

[0021] Figure 4 yes Figure 3 An enlarged schematic diagram of point B of the connection structure between the lifting device and the buffer damping device.

[0022] Figure 5 It is a left view of the hanging damping buffer device of the exemplary embodiment of the utility model.

[0023] Figure 6 yes Figure 1 Cross-sectional view of the lifting damping buffer device in the AA direction.

[0024] Markings in the figure: 1-lifting device, 101-first side plate, 102-second side plate, 103-rib plate, 2-damping buffer device, 201-cylinder body, 202-damping piston, 2020-piston rod, 2021-compression spring, 203-pressure cover, 204-piston head, 205-positioning sleeve, 206-shaft sleeve, 207-dust ring, 208-combined sealing ring, 3-connecting plate, 4-first wire rope, 5-hook, 6-connecting rod, 7-lifting ear, 8-pulley assembly, 801-pulley support, 802-pulley, 9-shackle, 10-wire rope clamp, 11-bolt assembly, 12-second wire rope, 13-double chain rigging, 14-O-ring. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments to make the purpose, technical solutions and advantages of the present invention more clearly understood. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] refer to Figure 1 to Figure 6 The lifting damping buffer device of the exemplary embodiment of the utility model includes: a lifting device 1 and a damping buffer device 2. A hollow cavity is arranged in the lifting device 1, and a connecting plate 3 is fixedly arranged inside the cavity. Two damping buffer devices 2 are respectively arranged on both sides of the connecting plate 3. The first end of each damping buffer device 2 is connected to the connecting plate 3, and the second end of each damping buffer device 2 is connected to the first end of the first steel wire rope 4. The second end of the first steel wire rope 4 passes through the cavity of the lifting device 1 and is connected to the hook 5.

[0027] During use, the lifting device 1 can provide support for the damping and buffering device 2 to ensure the stability of the damping and buffering device 2 on the lifting device 1, thereby ensuring the safety of the formwork lifting process; when the hook 5 on the first steel wire rope is connected to the formwork, the lifting device 1 can lift the formwork to ensure the stability of the formwork in the air; during the formwork removal process, the damping and buffering device 2 can buffer through the telescopic stroke, and at least eliminate 80% of the impact force (generated by its own weight) generated by the sudden stagnation of the formwork, thereby effectively reducing the impact force of the formwork in the process of detaching from the concrete structure, and reducing the safety risks during the formwork removal process.

[0028] The overall shape of the hoisting device 1 is a rectangular parallelepiped structure, including first side panels 101 arranged opposite to each other, and second side panels 102 are respectively arranged at both ends of the first side panel 101, and both ends of each second side panel 102 are respectively fixedly connected to the first side panel 101, and the space formed by the first side panel 101 and the second side panel 102 is a cavity; the connecting plate 3 is arranged in the middle of the cavity, and both ends of the connecting plate 3 are respectively fixedly connected to the first side panel 101. The first side panel 101 and the second side panel 102 are welded or integrally formed, and the first side panel 101 and the connecting plate 3 are welded or integrally formed; a rib plate 103 is also arranged at the connection position of the first side panel 101 and the second side panel 102, and the rib plates 103 are respectively arranged at the top four corners and the bottom four corners of the hoisting device 1, and the rib plates 103 are used to improve the connection strength of the first side panel 101 and the second side panel 102, thereby improving the stability of the structure of the first hoisting device 1.

[0029] The length of the first side plate 101 is longer than that of the second side plate 102. The length of the first side plate 101 can be set according to the hoisting requirements of the template. The distance between the two first side plates 101 is greater than the cylinder size of the hoisting device 2 so that the hoisting device 2 can be smoothly installed between the two first side plates 101. During application, the distance between the two first side plates 101 is preferably 250~300mm.

[0030] Two connecting rods 6 are also provided inside the cavity. The two connecting rods 6 are respectively provided near the left and right ends of the cavity. The connecting rods 6 are perpendicular to each other with the first side plate 101. The two ends of the connecting rods 6 are respectively fixedly connected with the first side plate 101. The connecting rods 6 are provided near the top of the first side plate 101 to prevent the connecting rods 6 from interfering with the installation of the first steel wire rope 4. A lifting lug 7 is fixedly provided in the middle of each connecting rod 6. The lifting lug 7 is used to lift the damping buffer device 2. The lifting lug 7 is provided in the middle of the connecting rod 6 to ensure the stability of the template hoisting. Each lifting lug 7 is respectively connected to the first end of the second steel wire rope 12. The second ends of the two second steel wire ropes 12 are connected to the same double chain rigging 13. After the double chain rigging 13 is connected to the hoisting device, the template can be hoisted. During the hoisting process, the angle between the two second steel wire ropes 12 is preferably 60 degrees to ensure the stability and safety during the template hoisting process. The angle between the two second steel wire ropes 12 can also be set according to the actual hoisting requirements.

[0031] The damping buffer device 2 includes a cylinder 201, a buffer cavity connected to both ends of the cylinder 201 is coaxially arranged in the cylinder 201, a damping piston 202 is arranged in the buffer cavity, the first end of the damping piston 202 extends into the buffer cavity from the second end of the cylinder 201, the second end of the damping piston 202 is connected to the second end of the cylinder 201 through a gland 203, the damping piston 202 can move back and forth in the buffer cavity, and the first end of the first steel wire 4 is detachably connected to the second end of the damping piston 202. Under the action of the damping piston 202, the impact force in the process of the template being separated from the concrete structure can be effectively reduced, and the safety risk in the process of removing the template can be reduced.

[0032] The first end of the damping piston 202 is provided with a piston head 204, which is cooperatively arranged in the buffer chamber; the damping piston 202 includes a piston rod 2020 and a compression spring 2021, which is sleeved on the piston rod 2020, the first end of the piston rod 2020 is fixedly connected to the piston head 204, the piston rod 2020 is provided with a positioning sleeve 205 near the second end, the positioning sleeve 205 is detachably connected to the gland 203 by screws, the first end of the compression spring 2021 is connected to the positioning sleeve 205, and the second end of the compression spring 2021 is connected to the piston head 204. The stroke of the piston rod 2020 of the damping piston 202 can be controlled by the compression spring 2021, and can also be controlled by hydraulic pressure.

[0033] A sleeve 206 is provided at the connection position of the positioning sleeve 205, the pressure cover 203 and the piston rod 2020. The sleeve 206 is sleeved on the piston rod 2020. A part of the sleeve 206 is embedded in the sleeve groove of the positioning sleeve 205, and the other part is embedded in the sleeve groove of the pressure cover 203. The sleeve 206 is used to prevent axial movement of the piston rod 2020 during operation and to prevent the piston rod 2020 from breaking. The sleeve 206 adopts an oil-containing sleeve 206, which can lubricate the piston rod 2020 and also seal the buffer chamber. The gland 203 and the second end of the cylinder body 201 are detachably connected by a bolt assembly 11 (including bolts, nuts and washers, and the specific model and size are determined according to the connection requirements). A dust ring 207 and a combined sealing ring 208 are also provided at the connection position between the gland 203 and the piston rod 2020. The dust ring 207 is sleeved on the piston rod 2020, and the combined sealing ring 208 is sleeved on the dust ring 207. The dust ring 207 is embedded in the dust ring groove of the gland 203, and the combined sealing ring 208 is embedded in the combined sealing ring groove of the gland 203. The dust ring 207 and the combined sealing ring 208 are used to further improve the sealing effect of the buffer chamber; an O-ring 14 is also provided at the connection position between the gland 203 and the cylinder body 201, and the O-ring 14 is embedded in the O-ring groove of the gland 203 to ensure the sealing effect of the gland 203 on the cylinder body 201.

[0034] A plurality of connecting through holes are circumferentially arranged near the edge of the connecting plate 3, and the arrangement positions of the connecting through holes correspond to the positions of the connecting through holes on the first end of the cylinder body 201. The first ends of the cylinder bodies 201 of the two damping and buffering devices 2 are detachably connected to the connecting plate 3 via a bolt assembly 11; during the connection process, the bolts are passed through the first ends of the cylinder bodies 201 of the two damping and buffering devices 2 and the connecting plate 3 at the same time, and then fixed with washers and nuts.

[0035] The pulley assembly 8 is detachably provided at the left and right ends of the cavity of the hoisting device 1, and the pulley assembly 8 is detachably provided on the second side plate 102 of the hoisting device 1. The second end of the first steel wire rope 4 passes through the pulley assembly 8 and is connected to the hook 5. The pulley assembly 8 can reduce the degree of wear of the first steel wire rope 4 during use and increase the service life of the first steel wire rope 4. The pulley assembly 8 can also improve the stability during the template hoisting process; the pulley assembly 8 can also adjust the length of the connection between the first steel wire rope 4 and the template to improve the safety of template hoisting.

[0036] The pulley assembly 8 includes a pulley support 801 and a pulley 802. The pulley support 801 is detachably set on the second side plate 102 through a bolt assembly 11. The pulley 802 is installed on the pulley support 801. The second end of the first steel wire rope 4 passes around the pulley 802 and extends out of the lifting device 1 from the bottom of the lifting device 1. After the first end of the first steel wire rope 4 passes around the shackle 9, it is fixed by the wire rope clamp 10. The shackle 9 is detachably set on the second end of the piston rod 2020.

[0037] In the application process of the hoisting damping and buffering device, a compression spring is preferably used to control the stroke of the piston rod. When a compression spring is used, the parameters of the compression spring are preferably: the compression spring 2021 is preferably made of stainless steel (SUS304-SPB), with an outer diameter of 110mm, an inner diameter of 70mm, a wire diameter of 20mm, 7 turns, a free height of 330mm, a stiffness of 385N / mm, and a weight of 4.8kg; its load-bearing capacity is 2450kg, the load-bearing height is 265mm, the deformation (compression stroke) is 65mm, the dynamic load is 5835kg, and the maximum dynamic compression stroke is 155mm; thus, the hoisting damping and buffering device can effectively reduce the impact force generated by the formwork detaching from the concrete structure when hoisting and dismantling the formwork weighing about 3t, thereby improving the safety during the formwork removal process.

[0038] The use process of the lifting damping buffer device of the utility model includes: when the formwork is to be removed, the two hooks 5 are respectively connected to the formwork, and the length of the first steel wire rope 4 is adjusted by the pulley assembly 8 so that the length of the first steel wire rope 4 is within a preset range. After the double-chain rigging 13 is connected to the lifting device, the formwork is lifted. During the process of the formwork being separated from the concrete structure, the first steel wire rope 4 drives the piston rod 2020 and the piston head 204 to move in the cylinder body 201, so that the compression spring 2021 is compressed. Under the combined effect of the rebound force of the compression spring 2021 and the damping force between the piston head 204 and the cylinder body 201, most of the impact force generated by the deadweight of the formwork in the air can be offset, thereby effectively reducing the safety risk during the formwork removal process.

[0039] The above is only a detailed description of the specific implementation of the utility model, rather than a limitation of the utility model. Various substitutions, modifications and improvements made by technicians in the relevant technical field without departing from the principle and scope of the utility model should be included in the protection scope of the utility model.

Claims

1. A hoisting damping buffer device, characterized in that: include: A hoisting device (1) and a damping buffer device (2), wherein a hollow cavity is arranged in the hoisting device (1), a connecting plate (3) is fixedly arranged inside the cavity, two damping buffer devices (2) are arranged on both sides of the connecting plate (3), a first end of each damping buffer device (2) is connected to the connecting plate (3), and a second end of each damping buffer device (2) is connected to a first end of a first steel wire rope (4), and the second end of the first steel wire rope (4) passes through the cavity of the hoisting device (1).

2. The hoisting damping buffer device according to claim 1, characterized in that: The hoisting device (1) is in the shape of a rectangular parallelepiped structure as a whole, comprising first side panels (101) arranged opposite to each other, second side panels (102) being respectively arranged at both ends of the first side panel (101), and both ends of each second side panel (102) being respectively fixedly connected to the first side panel (101), and the space formed by the first side panel (101) and the second side panel (102) is a cavity; the connecting plate (3) is arranged in the middle of the cavity, and the two ends of the connecting plate (3) are respectively fixedly connected to the first side panel (101).

3. The hoisting damping buffer device according to claim 2, characterized in that: Two connecting rods (6) are also provided inside the cavity. The two connecting rods (6) are respectively provided near the left and right ends of the cavity. The connecting rods (6) are perpendicular to the first side plate (101). The two ends of the connecting rods (6) are respectively fixedly connected to the first side plate (101). The connecting rods (6) are provided near the top of the first side plate (101). A lifting ear (7) is fixedly provided in the middle of each connecting rod (6).

4. The hoisting damping buffer device according to claim 2, characterized in that: The damping buffer device (2) comprises a cylinder body (201), a buffer chamber connected to two ends of the cylinder body (201) being coaxially arranged in the cylinder body (201), a damping piston (202) being arranged in the buffer chamber, a first end of the damping piston (202) extending from the second end of the cylinder body (201) into the buffer chamber, a second end of the damping piston (202) being connected to the second end of the cylinder body (201) via a gland (203), and a first end of the first steel wire rope (4) being detachably connected to the second end of the damping piston (202).

5. The suspension damping and buffering device according to claim 4, characterized in that: The first end of the damping piston (202) is provided with a piston head (204), and the piston head (204) is cooperatively arranged in the buffer chamber; the damping piston (202) comprises a piston rod (2020) and a compression spring (2021), the first end of the piston rod (2020) is fixedly connected to the piston head (204), the piston rod (2020) is provided with a positioning sleeve (205) near the second end, the positioning sleeve (205) is detachably connected to the pressure cover (203), the first end of the compression spring (2021) is connected to the positioning sleeve (205), and the second end of the compression spring (2021) is connected to the piston head (204).

6. The suspension damping and buffering device according to claim 5, characterized in that: A shaft sleeve (206) is provided at the connection position between the positioning sleeve (205), the pressure cover (203) and the piston rod (2020); the shaft sleeve (206) is sleeved on the piston rod (2020); a portion of the shaft sleeve (206) is embedded in the shaft sleeve groove of the positioning sleeve (205), and another portion is embedded in the shaft sleeve groove of the pressure cover (203); a dust ring (207) and a combined sealing ring (208) are also provided at the connection position between the pressure cover (203) and the piston rod (2020); the dust ring (207) is sleeved on the piston rod (2020), and the combined sealing ring (208) is sleeved on the dust ring (207); an O-ring (14) is provided at the connection position between the pressure cover (203) and the cylinder body (201).

7. The suspension damping and buffering device according to claim 4, characterized in that: A plurality of connecting through holes are circumferentially arranged near the edge of the connecting plate (3); the arrangement positions of the connecting through holes correspond to the positions of the connecting through holes on the first end of the cylinder body (201); the first ends of the cylinder bodies (201) of the two damping buffer devices (2) are detachably connected to the connecting plate (3) via a bolt assembly (11).

8. The suspension damping and buffering device according to any one of claims 2 to 7, characterized in that: Pulley assemblies (8) are detachably provided at the left and right ends of the cavity of the lifting device (1), respectively. The pulley assembly (8) comprises a pulley support (801) and a pulley (802). The pulley support (801) is detachably provided on the second side plate (102) via a bolt assembly (11), and the pulley (802) is mounted on the pulley support (801). The second end of the first steel wire rope (4) passes around the pulley (802), extends out of the lifting device (1) from the bottom of the lifting device (1), and is connected to the hook (5).

9. The suspension damping and buffering device according to claim 8, characterized in that: After the first end of the first steel wire rope (4) passes around the shackle (9), it is fixed by a steel wire rope clamp (10), and the shackle (9) is detachably arranged on the second end of the piston rod (2020).

10. The suspension damping and buffering device according to any one of claims 2 to 7, characterized in that: A rib plate (103) is provided at the connection position between the first side plate (101) and the second side plate (102).

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