Lifting device

Abstract

The utility model provides a hoisting device and relates to the technical field of hoisting. The lifting device comprises a lifting ring, two lifting mechanisms are connected with the lifting ring through lifting ropes respectively, each lifting mechanism comprises an upper clamping plate and a lower clamping plate which are connected, a pull ring is arranged on the upper clamping plate in a sliding mode, a linkage abutting assembly is arranged between the pull ring and the upper clamping plate, and the linkage abutting assembly comprises an abutting head. The abutting head is slidably arranged on the side wall, close to the lower clamping plate, of the upper clamping plate, a first rack slidably connected with the upper clamping plate is vertically arranged at the top of the abutting head, and a second rack connected with the pull ring is vertically slidably arranged in the portion, on the side of the first rack, of the upper clamping plate. A gear rotationally connected with the upper clamping plate is engaged between the first rack and the second rack. According to the utility model, rapid hoisting can be realized, and a hoisted object can be stably connected.

Description

Technical Field

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

[0002] A box-type substation, also called a prefabricated substation or a prefabricated transformer substation, is a high-voltage switchgear, a distribution transformer, and a low-voltage distribution device. It is a factory prefabricated indoor and outdoor compact distribution equipment arranged according to a certain wiring scheme, that is, functions such as transformer step-down and low-voltage power distribution are organically combined together and installed in a moisture-proof, rust-proof, dust-proof, mouse-proof, fire-proof, anti-theft, heat-insulating, fully enclosed, and movable steel structure box.

[0003] At present, when hoisting an existing box-type substation, it is generally carried out by bundling with ropes. During hoisting, not only is bundling time-consuming and laborious, but also the structure is not stable enough. Summary of the Utility Model

[0004] The purpose of the utility model is to develop a hoisting device that can achieve rapid hoisting and ensure the stable connection of the object to be hoisted.

[0005] The utility model is realized by the following technical solutions:

[0006] A hoisting device includes:

[0007] A lifting ring;

[0008] Two hoisting mechanisms, which are respectively connected to the lifting ring through hoisting ropes. The hoisting mechanism includes:

[0009] An upper clamping plate and a lower clamping plate connected to each other;

[0010] A pull ring, which is slidably arranged on the upper clamping plate;

[0011] A linkage tightening assembly, which is arranged between the pull ring and the upper clamping plate;

[0012] Wherein, the linkage tightening assembly includes a tightening head, the tightening head is slidably arranged on the side wall of the upper clamping plate close to the lower clamping plate, a first rack vertically arranged on the top of the tightening head is slidably connected to the upper clamping plate, a second rack connected to the pull ring is vertically slidably arranged in the upper clamping plate on the side of the first rack, and a gear rotatably connected to the upper clamping plate is engaged between the first rack and the second rack.

[0013] Optionally, a slot is arranged in the upper clamping plate at the lower part of the pull ring, and the linkage tightening assembly is arranged in the slot.

[0014] Optionally, a first sleeve vertically arranged on the top of the tightening head is arranged in the slot, a first guide rod connected to the top of the slot is slidably arranged in the first sleeve, and the first rack is arranged on the first sleeve.

[0015] Optionally, a horizontal transmission disc is provided in the slot, a transmission rod is vertically provided on the top of the transmission disc, the transmission rod is connected to the pull ring, a spring is sleeved on the outside of the transmission rod, and both ends of the spring are connected to the transmission disc and the top of the slot.

[0016] Optionally, a second sleeve is vertically provided at the end of the transmission plate close to the first rack, a second guide rod connected to the top of the slot is slidably provided in the second sleeve, and the second rack is provided on the second sleeve.

[0017] Optionally, an elastic layer of rubber material is provided at the bottom of the abutting head.

[0018] Optionally, the upper clamping plate is L-shaped, and includes a vertical portion and a horizontal portion in an integrated structure, and the bottom end of the vertical portion of the upper clamping plate is movably connected to the lower clamping plate.

[0019] Optionally, the horizontal portion of the upper clamping plate and the side walls of the lower clamping plate close to each other are covered with a plurality of anti-slip teeth.

[0020] Optionally, an adjustment component is provided between the upper clamping plate and the lower clamping plate, and the adjustment component includes a slot hole provided in the vertical portion of the upper clamping plate, a threaded sleeve provided in the slot hole which is vertically arranged and fixedly connected to the lower clamping plate, a screw rod which is rotatably provided in the vertical portion of the upper clamping plate above the threaded sleeve and which is threadably matched with the threaded sleeve, the outer end portion of the screw rod extends out of the upper clamping plate and an adjustment knob is coaxially provided on the outer end portion of the screw rod.

[0021] Optionally, the two lifting ropes connected to the two lifting mechanisms are of the same length.

[0022] The beneficial effects of the utility model are:

[0023] The utility model has a simple structure and low cost. By inserting the two lifting mechanisms into the two plate-shaped structures of the lifted object, a fast and stable connection with the lifted object can be achieved. During the lifting process, the heavier the lifted object is, the greater the pressure exerted by the clamping head on the lifted object, and the more stable the connection between the lifted object and the lifting mechanism is, so that the lifted object can be prevented from falling off during the lifting process. After the lifting is completed, the tension can be removed to separate the clamping head from the lifted object, and the two lifting mechanisms can be pulled out at this time, so that the lifting operation is efficient, fast and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1This is a schematic structural view of the present utility model;

[0026] Figure 2 This is a schematic structural view of the hoisting mechanism;

[0027] Figure 3 This is a three - dimensional structural view of the hoisting mechanism;

[0028] Figure 4 is Figure 2 an enlarged view of part A in

[0029] Reference numerals: 1, lifting ring; 2, lifting rope; 3, upper clamping plate; 4, lower clamping plate; 5, anti - slip teeth; 6, pull ring; 7, adjusting knob; 8, threaded sleeve; 9, screw rod; 10, slot; 11, transmission rod; 12, spring; 13, transmission disc; 14, abutting head; 15, first sleeve; 16, first guide rod; 17, first rack; 18, gear; 19, second rack; 20, second sleeve; 21, second guide rod. Detailed implementation manners

[0030] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0031] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0032] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0033] As Figures 1 - 4 shown, the present utility model discloses a hoisting device, which includes two hoisting mechanisms. There is a lifting ring 1 between the two hoisting mechanisms, and lifting ropes 2 with the same length are connected between the lifting ring 1 and the two hoisting mechanisms. When hoisting, the two hoisting mechanisms respectively clamp the plate - shaped parts of the component to be hoisted for connection, and then the lifting work is carried out through the lifting ring 1.

[0034] The lifting mechanism includes a lower splint 4 and an upper splint 3. The upper splint 3 is L-shaped and includes a vertical portion and a horizontal portion in an integrated structure. The bottom end of the vertical portion of the upper splint 3 is movably connected to the lower splint 4. The horizontal portion of the upper splint 3 and the side walls of the lower splint 4 that are close to each other are covered with a plurality of anti-slip teeth 5.

[0035] An adjustment component is provided between the lower clamping plate 4 and the upper clamping plate 3, and the adjustment component adjusts the spacing between the horizontal part of the upper clamping plate 3 and the lower clamping plate 4. The adjustment component includes two slots provided in the vertical part of the upper clamping plate 3, and the slots are opened vertically upward from the bottom surface of the vertical part. A threaded sleeve 8 is provided in the slot and is vertically arranged and fixedly connected to the lower clamping plate 4. A screw 9 that is threadedly matched with the threaded sleeve 8 is rotatably provided in the vertical part of the upper clamping plate 3 above the threaded sleeve 8. The screw 9 will not slide relative to the axial direction of the screw 9 on the upper clamping plate 3. The outer end of the screw 9 extends out of the upper clamping plate 3, and the outer end of the screw 9 is coaxially provided with an adjustment knob 7. When the adjustment knob 7 is turned, the screw 9 and the threaded sleeve 8 are threadedly matched to realize the lifting and lowering of the screw 9 in the threaded sleeve 8, and the screw 9 drives the upper clamping plate 3 to lift and lower on the lower clamping plate 4, so as to adjust the spacing between the horizontal part of the upper clamping plate 3 and the lower clamping plate 4, so that it is adapted to the width of the clamped part.

[0036] The upper clamping plate 3 is provided with a pull ring 6, which is connected to the suspension rope 2. A linkage tightening assembly is provided between the pull ring 6 and the upper clamping plate 3. When the pull ring 6 is subjected to tension, a part of the linkage tightening assembly is pressed against the clamped object below the horizontal part of the upper clamping plate 3, so that the clamped object is pressed against the lower clamping plate 4.

[0037] The linkage tightening assembly includes a slot 10 provided in the upper clamping plate 3 below the pull ring 6, a horizontally arranged transmission disc 13 is provided in the slot 10, the transmission disc 13 is in the shape of a disc, a transmission rod 11 is coaxially connected to the top of the transmission disc 13, the transmission rod 11 extends out of the upper clamping plate 3 and is connected to the pull ring 6, a spring 12 is provided on the outer side of the transmission rod 11, the bottom of the spring 12 is connected to the transmission disc 13, and the top of the spring 12 is connected to the top of the slot 10. Through the transmission rod 11, the pull ring 6 can slide on the upper clamping plate 3, and the pull ring 6 moves upward when subjected to tension, and the pull ring 6 drives the transmission rod 11 and the transmission disc 13 to slide upward, and the spring 12 is compressed accordingly. When the tension on the pull ring 6 is removed, under the elastic force of the spring 12, the transmission disc 13 drops until it contacts the bottom of the slot 10, and the pull ring 6 slides down to the reset state.

[0038] On the side wall of the horizontal part of the upper clamping plate 3 close to the lower clamping plate 4, there is a slot hole communicating with the slot 10. A pressing head 14 is slidably arranged in the slot hole, and an elastic layer made of rubber material is arranged on the bottom surface of the pressing head 14. A first sleeve 15 is vertically arranged at the top of the pressing head 14. A first guide rod 16 is slidably arranged in the first sleeve 15, and the first guide rod 16 is connected to the top surface of the slot 10. At the end of the transmission disk 13 close to the first sleeve 15, a second sleeve 20 is vertically arranged. A second guide rod 21 is slidably arranged in the second sleeve 20, and the second guide rod 21 is connected to the top surface of the slot 10. First racks 17 and second racks 19 are respectively vertically arranged on the side walls of the first sleeve 15 and the second sleeve 20 close to each other. A gear 18 meshing with them is rotatably arranged between the first rack 17 and the second rack 19, and the gear 18 is rotatably arranged in the slot 10. When the transmission disk 13 moves upward, it drives the second sleeve 20 and the second rack 19 to move upward. Through the transmission of the gear 18, the first rack 17 and the first sleeve 15 move downward accordingly and drive the pressing head 14 to slide downward.

[0039] When hoisting the box-type substation, first adjust the distance between the upper clamping plate 3 and the lower clamping plate 4 of the two hoisting mechanisms so that the distance between the horizontal part of the upper clamping plate 3 and the lower clamping plate 4 is adapted to the thickness of the clamped part of the box-type substation. Fix the two hoisting mechanisms at both ends of the top of the box-type substation respectively, so that the upper clamping plate 3 and the lower clamping plate 4 of the hoisting mechanism clamp both ends of the top of the box-type substation. Then connect the lifting ring 1 to the hoisting equipment and lift it. After the pull ring 6 is subjected to a pulling force, it slides upward. Through the linkage tightening assembly, the pressing head 14 slides downward and presses tightly on the box-type substation structure at the bottom of the horizontal part of the upper clamping plate 3. The downward pressure exerted by the pressing head 14 on the box-type substation not only makes the pressing head 14 in close contact with the box-type substation, but also makes the box-type substation in close contact with the lower clamping plate 4. The heavier the box-type substation is, the greater the downward pressure exerted by the pressing head 14 on the box-type substation, and the more stable the connection between the hoisting mechanism and the box-type substation. After stopping hoisting, remove the hoisting equipment. The lifting ring 1 is no longer subjected to a pulling force, and the pull ring 6 is no longer subjected to a pulling force. The elastic force of the spring 12 makes the lifting ring 1 slide downward and the pressing head 14 slide upward. At this time, the hoisting mechanism can be pulled out from the box-type substation.

[0040] The structure of the utility model is simple and the cost is low. Inserting the two hoisting mechanisms into the two plate-like structures of the object to be hoisted can realize a quick and stable connection with the object to be hoisted. During the hoisting process, the heavier the object to be hoisted is, the greater the pressure exerted by the pressing head 14 on the object to be hoisted, and the more stable the connection between the object to be hoisted and the hoisting mechanism, avoiding the object to be hoisted from falling during the hoisting process. After the hoisting is completed, removing the pulling force can realize the separation of the pressing head 14 from the object to be hoisted. At this time, just pull out the two hoisting mechanisms, making the hoisting operation efficient, fast and simple to operate.

[0041] The above embodiments are only the preferred embodiments of the present utility model and do not limit the technical solutions of the present utility model. Any technical solutions that can be achieved on the basis of the above embodiments without creative efforts shall be regarded as falling within the scope of the patent rights of the present utility model.

Claims

1. A lifting device, characterized in that: include: Rings; The two lifting mechanisms are connected to the lifting rings through lifting ropes respectively. The lifting mechanisms include: An upper and lower splint connected together; A pull ring, slidably arranged on the upper clamping plate; A linkage tightening component is arranged between the pull ring and the upper clamping plate; Among them, the linked clamping assembly includes a clamping head, which is slidably arranged on the side wall of the upper clamping plate close to the lower clamping plate, and a first rack slidably connected to the upper clamping plate is vertically arranged on the top of the clamping head, and a second rack connected to the pull ring is vertically slidably arranged in the upper clamping plate on the side of the first rack, and a gear rotatably connected to the upper clamping plate is meshed between the first rack and the second rack.

2. The lifting device according to claim 1, characterized in that: An opening is arranged in the upper clamping plate at the lower part of the pull ring, and the linkage pressing assembly is arranged in the opening.

3. The lifting device according to claim 2, characterized in that: A first sleeve located in the slot is vertically arranged on the top of the abutting head, a first guide rod connected to the top of the slot is slidably arranged in the first sleeve, and the first rack is arranged on the first sleeve.

4. The lifting device according to claim 3, characterized in that: A horizontal transmission disc is arranged in the slot, a transmission rod is vertically arranged on the top of the transmission disc, the transmission rod is connected with the pull ring, a spring is sleeved on the outer side of the transmission rod, and both ends of the spring are connected with the transmission disc and the top of the slot.

5. The lifting device according to claim 4, characterized in that: A second sleeve is vertically arranged at the end of the transmission disc close to the first rack, a second guide rod connected to the top of the slot is slidably arranged in the second sleeve, and the second rack is arranged on the second sleeve.

6. The lifting device according to any one of claims 1 to 5, characterized in that: An elastic layer made of rubber is arranged at the bottom of the abutting head.

7. The lifting device according to claim 1, characterized in that: The upper clamping plate is L-shaped and comprises a vertical portion and a horizontal portion in an integrated structure. The bottom end of the vertical portion of the upper clamping plate is movably connected to the lower clamping plate.

8. The lifting device according to claim 7, characterized in that: The horizontal part of the upper clamping plate and the side walls of the lower clamping plate close to each other are all covered with a plurality of anti-slip teeth.

9. The lifting device according to claim 7, characterized in that: An adjustment component is provided between the upper clamping plate and the lower clamping plate, and the adjustment component includes a slot hole provided in the vertical portion of the upper clamping plate, a threaded sleeve provided in the slot hole which is vertically arranged and fixedly connected to the lower clamping plate, a screw rod which is rotatably provided in the vertical portion of the upper clamping plate above the threaded sleeve and which is threadably matched with the threaded sleeve, the outer end portion of the screw rod extends out of the upper clamping plate and an adjustment knob is coaxially provided on the outer end portion of the screw rod.

10. The lifting device according to claim 1, characterized in that: The two lifting ropes connected to the two lifting mechanisms have the same length.

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