Near-end controlled clamping lifting appliance

Abstract

According to the near-end control clamping lifting appliance, a near-end control kit comprises a pull rod, a connecting arm and a self-locking assembly, the self-locking assembly comprises a fixed limiting piece, a sliding control piece, a matching rod sleeve and a matching ejector block, and the fixed limiting piece, the sliding control piece and the matching rod sleeve are sequentially connected to the pull rod in a sleeving mode from top to bottom; at least the fixed limiting piece, the sliding control piece and the matched ejector block are arranged in the inner cavity, a connecting sleeve piece is arranged on the cavity wall opposite to the matched ejector block, and a reset spring is arranged between the connecting sleeve piece and the matched ejector block. The sliding control piece comprises a conical part which is folded downwards, and an inclined face matched with the conical part is arranged to be matched with the ejector block. According to the technical scheme, the loading and unloading process of the clamping lifting appliance can be achieved through transmission and matching of the fixed limiting piece, the sliding control piece, the matching rod sleeve, the matching ejector block, the reset spring, the connecting arm and other structures only by controlling the push-pull rod at the near end, due to the existence of the near-end control sleeve piece, near-end control is allowed, obstruction of environmental factors to construction is eliminated, efficiency is improved, and construction safety is guaranteed. The energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude construction lifting equipment technology, specifically a lifting equipment with near-end control clamping. Background Technology

[0002] In high-altitude construction operations, scissor lifts (such as cranes or large lifting platforms) are generally used for handling and unloading construction materials. These are typically connected via a rotating connection device. For example, patent CN221216857U discloses a lifting device for power distribution engineering, relating to the field of lifting technology. It includes a scissor lift for clamping utility poles and a lifting assembly for lifting the scissor lift. The scissor lift includes two hinge shafts of the same height and parallel to each other. It also includes a limiting frame, where one hinge shaft supports rotation at one end of the limiting frame, and the other hinge shaft passes through the limiting frame. A fixed limiting block and a sliding limiting block are provided on the lower side of the upper wall of the limiting frame away from the rotating end. The sliding limit block slides perpendicular to the extension direction of the hinge shaft; the fixed limit block is a right-angled triangular plate structure with its hypotenuse facing the rotating end of the limit frame; the sliding limit block is an inverted isosceles triangular plate structure. Although the right-angled triangular plate-shaped fixed limit block and the isosceles triangular plate-shaped sliding limit block, in coordination with the relative movement of the hinge shaft, can limit and release the hinge shaft, thus enabling smooth and automatic clamping and separation of the utility pole, this technical solution still uses remote control. Lifting and lowering are performed via a lifting assembly (electric hoist) located at a remote location, with the scissor lift releasing its grip on the object during lowering. However, placing the power equipment far from the scissor lift in high-altitude construction environments, where natural factors such as wind can significantly affect the position and movement of the lift, requires more in-depth design of the equipment materials and structure, incurring substantial costs. Furthermore, in daily use, precise control also generates more energy consumption.

[0003] To address these issues, we can explore developing scissor lifts with higher levels of automation, better communication capabilities, and more intuitive user interfaces to improve the safety and economic efficiency of high-altitude operations. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a lifting device with near-end control clamping that protects the electronic components set on the rear end cover of the generator while also ensuring the good heat dissipation required by the generator.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A proximal-end controlled clamping lifting device includes a clamping arm assembly, the clamping arm assembly including a first clamping arm and a second clamping arm, and further includes:

[0007] Install the crossbeam, including the inner cavity;

[0008] At least two sets of clamping arm assemblies are provided on the mounting beam, and the top ends of the first clamping arm and the second clamping arm are respectively connected to the mounting beam.

[0009] A proximal control kit includes a pull rod, a pair of connecting arms, and a self-locking assembly. The pull rod passes through the mounting beam. One end of each of the two connecting arms is coaxially connected to an end connector, and the other ends of the two connecting arms are respectively connected to a first clamping arm and a second clamping arm. The self-locking assembly includes a fixing limiter, a sliding control member, a mating rod sleeve, and a mating top block. The fixing limiter, the sliding control member, and the mating rod sleeve are sequentially sleeved on the pull rod from top to bottom. At least the fixing limiter, the sliding control member, and the mating top block are disposed in the inner cavity. The fixing limiter is fixedly sleeved on the pull rod near the top of the cavity. A pair of mating top blocks are disposed on the left and right sides of the sliding control member. A connecting kit is provided on the cavity wall opposite the mating top blocks, and a return spring is provided between the connecting kit and the mating top blocks.

[0010] The sliding control component includes a downwardly tapered portion, and the mating top block is adapted to the tapered portion and has an inclined surface.

[0011] As a preferred embodiment of this utility model, the axis of the pull rod coincides with the centerline of the cross section of the mounting beam, and the two mating top blocks are symmetrically arranged on the left and right sides of the pull rod.

[0012] As a preferred embodiment of this invention, the maximum outer diameter of the sliding control component is equal to the outer diameter of the mating rod sleeve, and the mating top block further includes a vertical surface, the height of the tapered portion being less than the height of the vertical surface.

[0013] As a preferred embodiment of this invention, the end of the fitting rod sleeve is provided with a guide slope.

[0014] As a preferred embodiment of the present invention, the inner cavity includes a cavity top, a cavity wall, and a cavity bottom, the cavity bottom is provided with a bottom hole, the mating rod sleeve passes through the bottom hole, and there is a gap between the mating rod sleeve and the bottom hole wall.

[0015] As a preferred embodiment of this utility model, the cavity wall is provided with a connection hole, and the connection kit includes an integrated connecting cylinder and a connecting plate. The connecting cylinder is inserted into the connection hole and is fixedly connected to the mounting beam through the connecting plate.

[0016] As a preferred embodiment of this utility model, the bottom of the mounting beam is further provided with a material unloading limiter, the material unloading limiter including a threaded rod and a limiter foot, the mounting beam is provided with a limiter connection hole corresponding to the threaded rod, the threaded rod is connected to the limiter connection hole, and the limiter foot is sleeved on the bottom of the threaded rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] The near-end control kit, through fixed limiting components, sliding control components, cooperating rod sleeves, cooperating top blocks, and a return spring, allows the clamping and unloading of the lifting device to be achieved by pushing and pulling the pull rod at the near end, as long as an external force is applied. This is accomplished through the transmission and cooperation of structures such as fixed limiting components, sliding control components, cooperating rod sleeves, cooperating top blocks, return springs, and connecting arms. At the same time, the presence of the near-end control kit allows for near-end control, eliminating environmental factors that hinder construction, improving construction efficiency, and reducing energy consumption. Attached Figure Description

[0019] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the initial state of the proximal control kit in this utility model;

[0022] Figure 3 This is a schematic diagram showing the state of the pull rod when it is pressed down in the near-end control kit of this utility model;

[0023] Figure 4 This is a schematic diagram showing the state of the pull rod when it is lifted in the near-end control kit of this utility model;

[0024] Figure 5 In this utility model Figure 2 Enlarged detail view of point A in the middle;

[0025] Figure 6 This is a cross-sectional view of the assembly point between the top block and the connecting kit.

[0026] Figure 7 This is a cross-sectional view of the connection point between the installed crossbeam and the fitting rod. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] A lifting device with proximal control clamping includes a clamping arm assembly 2, which includes a first clamping arm 201 and a second clamping arm 202. The top ends of the first clamping arm 201 and the second clamping arm 202 are respectively hinged to the bottom of a mounting beam 1. The first clamping arm 201 and the second clamping arm 202 in one clamping arm assembly 2 are symmetrically arranged on both sides of the bottom of the mounting beam 1. At least two sets of clamping arm assemblies 2 are provided at the bottom of the mounting beam 1, and the two sets of clamping arm assemblies 2 clamp the two ends of the lifted item respectively.

[0029] It also includes a crossbeam 1, which includes an inner cavity 100.

[0030] The opening and closing of the first clamping arm 201 and the second clamping arm 202 are controlled by the proximal control kit 3. The proximal control kit 3 includes a pull rod 301, a pair of connecting arms 302, and a self-locking assembly 303. The pull rod 301 passes through the mounting beam 1, and one end of the pull rod 301 extends upward through the mounting beam 1 and is directly connected to an external power control device to push or pull the pull rod 301. The external power control device can be a hydraulic telescopic cylinder located near the pull rod 301.

[0031] One end of each of the two connecting arms 302 is coaxially connected to the end connector 301a, and the other ends of the two connecting arms 302 are respectively connected to the first clamping arm 201 and the second clamping arm 202. The self-locking assembly 303 includes a fixed limiting member 3031, a sliding control member 3032, a mating rod sleeve 3033, and a mating top block 3034. The fixed limiting member 3031, the sliding control member 3032, and the mating rod sleeve 3033 are sequentially sleeved on the pull rod 301 from top to bottom. At least the fixed limiting member 3031, the sliding control member 3032, and the mating top block 3034 are disposed in the inner cavity 100. The fixed limiting member 3031 is fixedly sleeved on the pull rod 301 near the top of the cavity 100a. A pair of mating top blocks 3034 are disposed on the left and right sides of the sliding control member 3032. The cavity wall 100b is provided with a connecting kit 101 opposite to the mating top blocks 3034. A return spring 5 is provided between the connecting kit 101 and the mating top blocks 3034. The sliding control member 3032 includes a downwardly tapered portion 3032a, and the tapered portion 3032a is provided with an inclined surface 3034a to cooperate with the top block 3034.

[0032] The maximum outer diameter of the sliding control component 3032 is equal to the outer diameter of the mating sleeve 3033. The mating top block 3034 also includes a vertical surface 3034b, and the height of the tapered part 3032a is less than the height of the vertical surface 3034b.

[0033] The end of the 3033 sleeve is provided with a guide slope.

[0034] The inner cavity 100 includes a cavity top 100a, a cavity wall 100b, and a cavity bottom 100c. The cavity bottom 100c is provided with a bottom hole 102. A fitting sleeve 3033 passes through the bottom hole 102, and there is a gap between the fitting sleeve 3033 and the hole wall of the bottom hole 102. The existence of the gap ensures that the sleeve 3033 and the mounting beam 1 do not interfere with each other.

[0035] The cavity wall 100b is provided with a connection hole 101a. The connection kit 101 includes an integrated connection cylinder 101b and a connection plate 101c. The connection cylinder 101b is inserted into the connection hole 101a and is fixedly connected to the mounting beam 1 through the connection plate 101c.

[0036] The bottom of the mounting beam 1 is also provided with a discharge limiting component 4, which includes a screw rod 401 and a limiting foot 402. The mounting beam 1 is provided with a limiting connection hole 103 corresponding to the screw rod 401. The screw rod 401 is connected to the limiting connection hole 103, and the limiting foot 402 is sleeved on the bottom of the screw rod 401.

[0037] Working principle:

[0038] As attached Figure 3 As shown, in the initial state, the sliding control component 3032, under the action of gravity, first contacts the mating rod sleeve 3033. The two mating top blocks 3034 on both sides press against the sliding control component 3032 and the mating rod sleeve 3033. At this time, the two connecting arms 302 work together to open the first clamping arm 201 and the second clamping arm 202 and maintain this state. The worker places the hoisted object between the first clamping arm 201 and the second clamping arm 202. Then, it is necessary to control the first clamping arm 201 and the second clamping arm 202 to clamp the hoisted object, as shown in the attached diagram. Figure 3-4 As shown, the pull rod 301 is first pushed downwards, and the fixed limiting member 3031 pushes the sliding control member 3032 downwards. The sliding control member 3032 and the mating rod sleeve 3033 abut against each other. As it continues to be pushed downwards, due to the presence of the tapered part 3032a and the guide slope, the sliding control member 3032 is pushed upwards by the two mating top blocks 3034. Since the height of the tapered part 3032a is less than the height of the vertical surface 3034b, the vertical surface 3034b of the mating top block 3034 abuts against both the sliding control member 3032 and the mating rod sleeve 3033. Then, pull the lever 301, and the lever 301 moves upward. The connecting arm 302 is pulled and retracted by the lever 301. The connecting arm 302 pulls the first clamping arm 201 and the second clamping arm 202 to retract each other. The lever 301 continues to move upward until the fixed limiting member 3031 contacts the top of the cavity 100a, thus completing the clamping and locking of the hoisted object.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A lifting device with proximal control clamping, comprising a clamping arm assembly (2), said clamping arm assembly (2) comprising a first clamping arm (201) and a second clamping arm (202), characterized in that, Also includes: Install crossbeam (1), including inner cavity (100); At least two sets of clamping arm assemblies (2) are provided on the mounting beam (1), with the top end of the first clamping arm (201) and the top end of the second clamping arm (202) respectively connected to the mounting beam (1); The proximal control kit (3) includes a pull rod (301), a pair of connecting arms (302), and a self-locking assembly (303). The pull rod (301) passes through the mounting beam (1). One end of each of the two connecting arms (302) is coaxially connected to an end connector (301a), and the other ends of the two connecting arms (302) are respectively connected to the first clamping arm (201) and the second clamping arm (202). The self-locking assembly (303) includes a fixing limiter (3031), a sliding control member (3032), a mating rod sleeve (3033), and a mating top block (3034). The fixing limiter (3031) and the sliding control member (3032) are... The connecting rod sleeve (3033) and the connecting rod sleeve (3033) are sequentially sleeved on the pull rod (301) from top to bottom, and at least the fixing limiting member (3031), the sliding control member (3032) and the connecting top block (3034) are arranged in the inner cavity (100). The fixing limiting member (3031) is fixedly sleeved on the pull rod (301) near the top of the cavity (100a). A pair of connecting top blocks (3034) are arranged on the left and right sides of the sliding control member (3032). The cavity wall (100b) is provided with a connecting kit (101) opposite to the connecting top block (3034). A return spring (5) is provided between the connecting kit (101) and the connecting top block (3034). The sliding control member (3032) includes a downwardly tapered portion (3032a), and the mating top block (3034) is adapted to the tapered portion (3032a) and has an inclined surface (3034a).

2. The lifting device with proximal control clamping according to claim 1, characterized in that, The axis of the pull rod (301) coincides with the center line of the cross section of the mounting beam (1), and the two mating top blocks (3034) are symmetrically arranged on the left and right sides of the pull rod (301).

3. A lifting device with proximal control clamping according to claim 2, characterized in that, The maximum outer diameter of the sliding control member (3032) is equal to the outer diameter of the mating sleeve (3033), and the mating top block (3034) also includes a vertical surface (3034b). The height of the tapered part (3032a) is less than the height of the vertical surface (3034b).

4. A lifting device with proximal control clamping according to claim 3, characterized in that, The end of the fitting rod sleeve (3033) is provided with a guide slope.

5. A lifting device with proximal control clamping according to claim 1, characterized in that, The inner cavity (100) includes the cavity top (100a), the cavity wall (100b) and the cavity bottom (100c). The cavity bottom (100c) is provided with a bottom hole (102). The mating rod sleeve (3033) passes through the bottom hole (102), and there is a gap between the mating rod sleeve (3033) and the hole wall of the bottom hole (102).

6. A lifting device with proximal control clamping according to claim 1 or 5, characterized in that, The cavity wall (100b) is provided with a connection hole (101a). The connection kit (101) includes an integrated connection cylinder (101b) and a connection plate (101c). The connection cylinder (101b) is inserted into the connection hole (101a) and fixedly connected to the mounting beam (1) through the connection plate (101c).

7. A lifting device with proximal control clamping according to claim 1, characterized in that, The bottom of the mounting beam (1) is also provided with a discharge limiting component (4). The discharge limiting component (4) includes a screw rod (401) and a limiting foot (402). The mounting beam (1) is provided with a limiting connection hole (103) corresponding to the screw rod (401). The screw rod (401) is connected to the limiting connection hole (103). The limiting foot (402) is sleeved on the bottom of the screw rod (401).

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