Switchgear hoisting device

Abstract

The application discloses a switch cabinet hoisting device, which comprises an upper beam and a plurality of hooks, the upper beam is provided with an opening matched with the fork of a forklift, the hooks are self-unhooking hooks, the self-unhooking hooks are fixed below the upper beam, the self-unhooking hook comprises a connecting block, a fixing cylinder and a main hook, the connecting block is fixed to the top of the fixing cylinder, a hoisting rod is connected with the connecting block, the top end of the main hook extends into the fixing cylinder, a load bearing pin is arranged between the main hook and the fixing cylinder, a torsion spring is arranged between the load bearing pin and the main hook, and the torsion spring rotates the main hook to an opening direction, the switch cabinet can be hoisted on the top of the switch cabinet by the self-unhooking hooks to carry and install the switch cabinet, the switch cabinet can be prevented from toppling, and manual labor can be saved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of auxiliary equipment for switch cabinet installation, and more particularly to a switch cabinet hoisting device. BACKGROUND

[0002] Current power equipment is developing towards miniaturization and intelligence, and the assembly work is increasingly complex, compact, diverse in type, and labor-intensive. With the increasing scale of power grids and the growing cost of labor, manual installation of power equipment is increasingly difficult to meet the needs of modern power grid construction.

[0003] Currently, when installing a switch cabinet, the following problems often exist.

[0004] 1. Difficult to transport indoors, no suitable transportation equipment, only manual or forklift transportation to complete installation.

[0005] 2. The equipment is heavy and bulky, and any carelessness during transportation and installation may cause damage to the safety of employees and equipment.

[0006] 3. High labor resource investment and high on-site safety control difficulty;

[0007] 4. The forklift holds the bottom of the switch cabinet, and the switch cabinet is not stable and prone to tipping over. SUMMARY

[0008] To overcome the shortcomings of the prior art, the present application provides a switch cabinet hoisting device that can cooperate with a forklift, adopt a self-detaching hook to hoist at the top of the switch cabinet, not only prevent the switch cabinet from tipping over, but also save labor.

[0009] To achieve the above purpose, the present application provides the following technical scheme: a switch cabinet hoisting device, comprising a hoisting upper beam and a plurality of hooks, the upper beam is provided with an opening matched with the forks of the forklift, the hook is a self-detaching hook, and the self-detaching hook is fixed below the upper beam.

[0010] Further, the upper beam comprises a cross beam and a longitudinal beam, the cross beam and the longitudinal beam are fixedly connected with each other, the opening is located on the cross beam, and the self-detaching hook is fixed on the longitudinal beam.

[0011] Further, a strip-shaped groove is formed on the longitudinal beam, the self-detaching hook comprises a lifting rod, the lifting rod passes through the strip-shaped groove, and two groups of locking nuts are threadedly connected on the lifting rod, and the two groups of locking nuts are located on the upper and lower sides of the longitudinal beam.

[0012] Further, the self-unhooking device further comprises a connecting block, a fixing cylinder and a main hook, the connecting block is fixed on the top of the fixing cylinder, the boom is connected with the connecting block, the top end of the main hook extends into the fixing cylinder, and a bearing pin is arranged between the main hook and the fixing cylinder, a torsion spring is arranged between the bearing pin and the main hook, and the torsion spring rotates the main hook to the opening direction.

[0013] Further, the boom extends into the fixing cylinder through the connecting block, and the end of the boom extending into the fixing cylinder is provided with an anti-escape head, the boom is connected with the connecting block in the vertical direction, the fixing cylinder is provided with a safety buckle, the safety buckle is connected with a retaining spring, the retaining spring drives the safety buckle to move upward, the top of the safety buckle abuts against the anti-escape head, and a safety pawl is arranged between the safety buckle and the main hook in the fixing cylinder, and the safety pawl prevents the main hook from rotating to the opening direction when the main hook is closed.

[0014] Further, a pin shaft is arranged between the safety pawl and the fixing cylinder, a stop block is arranged on the main hook, and one end of the safety pawl abuts against the stop block when the main hook is closed, and the other end of the safety pawl is connected with the safety buckle.

[0015] Further, a positioning groove is arranged on the safety buckle, and the end of the safety pawl extends into the positioning groove.

[0016] Further, the safety buckle is in the shape of "n", and the positioning groove is arranged on the side of the safety buckle.

[0017] Further, a bearing support is arranged in the fixing cylinder, the bearing support is in the shape of "n", and a guide groove is formed between the bearing support and the fixing cylinder, and the side of the safety buckle extends into the guide groove.

[0018] Further, a limiting protrusion is arranged on the side of the main hook, and the limiting protrusion abuts against the fixing cylinder when the main hook is opened.

[0019] Compared with the prior art, the switch cabinet lifting device has the following beneficial effects:

[0020] 1. The switch cabinet is lifted from the top of the switch cabinet, and the switch cabinet is prevented from falling;

[0021] 2. The switch cabinet is placed by cooperating with the forklift, and manual disassembly is not required, and automatic unhooking can be realized;

[0022] 3. During the lifting and transferring process, the main hook is prevented from being opened under the action of the safety pawl, the unhooking is prevented, and the safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional structure diagram of the switch cabinet lifting device of the present application;

[0024] Figure 2 It is a three-dimensional structure diagram of the self-unhooking device in the present application;

[0025] Figure 3 is a sectional view of the self-unhooking hook (when closed) in the present application;

[0026] Figure 4 is an enlarged view of the safety fastener in the present application

[0027] Figure 5 is a sectional view of the self-unhooking hook (when opened) in the present application.

[0028] The reference signs: 1, upper beam; 11, longitudinal beam; 12, cross beam; 121, opening; 2, self-unhooking hook; 21, suspender; 211, anti-unhooking head; 212, locking nut; 22, fixing cylinder; 23, main hook; 231, stop block; 232, limiting protrusion; 24, safety fastener; 241, positioning groove; 25, safety pawl; 26, torsional spring; 27, compression spring; 28, load-bearing support; 29, connecting block; 3, lifting ring. DETAILED DESCRIPTION

[0029] Reference Figures 1 to 5 The embodiment of the switchgear hoisting device of the present application is further described.

[0030] In the description of the present application, it should be noted that for the orientation words, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0031] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first", "second" features can be explicitly or implicitly included one or more features, and in the description of the present application, the meaning of "several", "several" is two or more, unless otherwise explicitly specified.

[0032] A switchgear hoisting device comprises a hoisting upper beam 1 and a plurality of hooks, the upper beam 1 is provided with an opening 121 matched with the forks of a forklift, the hook is a self-unhooking hook 2, and the self-unhooking hook 2 is fixed below the upper beam 1.

[0033] In actual application, a plurality of lifting rings 3 are arranged at the top of the switchgear for cooperation with the self-unhooking hook 2.

[0034] In this preferred embodiment, the upper beam 1 includes a crossbeam 12 and a longitudinal beam 11. The crossbeam 12 and the longitudinal beam 11 are fixedly connected to each other. The opening 121 is located on the crossbeam 12, and the self-detaching hook 2 is fixed on the longitudinal beam 11.

[0035] like Figure 1 As shown, in this embodiment, there are two crossbeams 12 and two longitudinal beams 11. The crossbeams 12 and the longitudinal beams 11 are locked together by fasteners. The opening 121 passes through the crossbeam 12. When the forks of the forklift are inserted, the upper beam 1 can maintain a relatively static and stable position relative to the forks.

[0036] The crossbeam 12 has a slotted groove. By adjusting the connection position between the longitudinal beam 11 and the crossbeam 12, the lateral position of the longitudinal beam 11 can be controlled.

[0037] like Figure 1 As shown, in this preferred embodiment, the longitudinal beam 11 is provided with a strip groove, and the self-detaching hook 2 includes a lifting rod 21. The lifting rod 21 passes through the strip groove and is threaded with two sets of locking nuts 212. The two sets of locking nuts 212 are located on the upper and lower sides of the longitudinal beam 11.

[0038] The position of the self-detaching hook 2 can be adjusted by the strip groove, that is, the longitudinal position of the self-detaching hook 2 can be controlled. Combined with the position of the longitudinal beam 11 on the transverse beam 12, the position of the self-detaching hook 2 on the horizontal plane can be controlled to ensure that multiple self-detaching hooks 2 can hook the lifting ring 3 at the same time.

[0039] In one preferred embodiment, the self-detaching hook 2 further includes a connecting block 29, a fixing cylinder 22, and a main hook 23. The connecting block 29 is fixed to the top of the fixing cylinder 22, the lifting rod 21 is connected to the connecting block 29, the top end of the main hook 23 extends into the fixing cylinder 22, and a load-bearing pin is provided between the main hook 23 and the fixing cylinder 22. A torsion spring 26 is provided between the load-bearing pin and the main hook 23, and the torsion spring 26 causes the main hook 23 to rotate in the opening direction.

[0040] In this embodiment, the torsion spring 26 is preferably a double torsion spring.

[0041] The opening direction of the main hook 23 refers to the direction in which the main hook 23 can disengage from the lifting ring 3, and vice versa.

[0042] In use, the upper beam 1 is first secured to the forklift forks. Then, the entire upper beam 1 is moved above the switch cabinet to be transported, and the main hook 23 is hooked onto the lifting ring 3. The forks are then moved upwards, and under the weight of the switch cabinet, the main hook 23 will completely hook onto the lifting ring 3. After reaching the designated position, the forks are moved downwards, and the switch cabinet is placed on the ground. The forks continue to move downwards, at which point the main hook 23 will move downwards within the lifting ring 3. Without the restriction of the lifting ring 3, the main hook 23 will rotate in the opening direction under the action of the torsion spring 26. The forklift can move in the opposite direction of the opening 121 of the main hook 23 to remove the main hook 23, realizing the self-unhooking function without manual intervention.

[0043] In this preferred embodiment, the boom 21 passes through the connecting block 29 into the fixed cylinder 22, and one end of the boom 21 extending into the fixed cylinder 22 is provided with an anti-detachment head 211. The boom 21 and the connecting block 29 are slidably connected in the vertical direction. A safety fastener 24 is provided in the fixed cylinder 22, and a retaining spring is connected to the safety fastener 24. The retaining spring causes the safety fastener 24 to move upward. The top of the safety fastener 24 abuts against the anti-detachment head 211. A safety claw 25 is provided in the fixed cylinder 22 between the safety fastener 24 and the main hook 23. When the main hook 23 is closed, the safety claw 25 prevents the main hook 23 from rotating in the opening direction.

[0044] Specifically, a pin is provided between the safety claw 25 and the fixed cylinder 22, and a stop block 231 is provided on the main hook 23. When the main hook 23 is closed, one end of the safety claw 25 abuts against the stop block 231, and the other end of the safety claw 25 is connected to the safety fastener 24.

[0045] like Figure 3 As shown, the main hook 23 is in a closed state at this time. In order to completely close one side of the opening 121 of the main hook 23, the fixed cylinder 22 preferably extends downward on the side corresponding to the opening 121 of the main hook 23. When the main hook 23 is closed, its opening 121 is blocked by the side wall of the fixed cylinder 22.

[0046] like Figure 4 As shown, for a clear understanding of the present invention, the end of the safety claw 25 facing the stop block 231 is referred to as the passive end and the other end as the active end. The retaining spring keeps the retaining fastener at the top, and under the action of the lever, the active end of the safety claw 25 is pulled upward and the passive end is pressed downward. The passive end abuts against the stop block 231. At this time, even if there is no heavy lifting ring 3 pulling below the main hook 23, it cannot rotate in the opening direction (clockwise). That is, it is ensured that during the transfer of the switch cabinet, the main hook 23 always remains in a mutually hooked state with the lifting ring 3, and the lifting ring 3 cannot be dislodged.

[0047] After the switch cabinet is put down, as the upper beam 1 continues to descend, the main hook 23 or other components abut against the lifting ring 3 or the switch cabinet, the lifting rod 21 further extends into the fixed cylinder 22, the anti-falling head 211 will press the safety buckle 24 downward, overcoming the force of the retaining spring, the safety buckle 24 moves downward, as shown in the figure, further making the driving end of the safety pawl 25 swing downward, the passive end of the safety pawl 25 swings upward, and the safety pawl 25 is disengaged from the stop block 231. At this time, the main hook 23 is not affected by the safety pawl 25, and will rotate in the opening direction (clockwise) under the action of the torsion spring 26, so that the lifting ring 3 is disengaged, that is, the unhooking is completed. Figure 5

[0048] When the main hook 23 is closed again, as long as the upper beam 1 is lifted, the safety buckle 24 will move upward and reset, and after the main hook 23 rotates in the closing direction, the safety pawl 25 will abut against the stop block 231 again.

[0049] The preferred safety buckle 24 of the embodiment is provided with a positioning groove 241, and the end of the safety pawl 25 extends into the positioning groove 241.

[0050] The driving end of the safety pawl 25 extends into the positioning groove 241, and the positioning groove 241 only limits the position of the safety pawl 25 in the vertical direction, that is, ensures that the safety buckle 24 can drive the safety pawl 25 to rotate around the pin shaft during upward and downward movement.

[0051] As shown in the figure, the safety buckle 24 is in the shape of "n", and the positioning groove 241 is provided on the side surface of the safety buckle 24. Figure 3

[0052] The side surface of the safety buckle 24 is basically attached to the inner wall of the fixed cylinder 22, and the movement of the safety buckle 24 is limited by the inner wall of the fixed cylinder 22 to prevent it from tilting.

[0053] In an embodiment, a load-bearing support 28 is arranged in the fixed cylinder 22, the load-bearing support 28 is in the shape of "n" and forms a guide groove with the fixed cylinder 22, and the side surface of the safety buckle 24 extends into the guide groove.

[0054] The load-bearing support 28 is completely fixed with the fixed cylinder 22, and the load-bearing pin can pass through the load-bearing support 28 and the fixed cylinder 22 at the same time. The further retaining spring can be a compression spring 27, one end of which abuts above the load-bearing support 28, and the other end abuts below the safety buckle 24. In order to keep the safety buckle 24 stable, a guide column is preferably arranged on the top of the load-bearing support 28, the compression spring 27 is sleeved on the guide column, and a guide hole is arranged on the safety buckle 24, and the guide column passes through the guide hole.

[0055] The load-bearing support 28 can also be considered as being integrated with the fixed cylinder 22.

[0056] ​​The side of the main hook 23 is preferably provided with a limiting protrusion 232, and the limiting protrusion 232 is abutted on the fixed cylinder 22 when the main hook 23 is opened.

[0057] The limiting protrusion 232 can limit the maximum opening angle of the main hook 23.

[0058] The application can also be combined with the prior application, Chinese patent with publication number CN114675637A, to realize automatic switching cabinet transfer and handling work.

[0059] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments only. Any technical solution that belongs to the idea of the present application shall be within the protection scope of the present application. It should be noted that for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principles of the present application shall also be considered as the protection scope of the present application.

Claims

1. A switch cabinet hoisting device, comprising a hoisting upper beam and a plurality of hooks, characterized in that: The upper beam is provided with an opening matched with the forks of the forklift, and the hook is a self-unhooking hook which is fixed below the upper beam. The upper beam comprises a cross beam and a longitudinal beam, a strip-shaped slot is formed in the longitudinal beam, the self-unhooking hook comprises a lifting rod, the lifting rod passes through the strip-shaped slot, and two groups of locking nuts are threadedly connected to the lifting rod, and the two groups of locking nuts are located on the upper and lower sides of the longitudinal beam. The self-unhooking hook further comprises a connecting block, a fixing cylinder and a main hook, the connecting block is fixed to the top of the fixing cylinder, the lifting rod is connected with the connecting block, the top end of the main hook extends into the fixing cylinder, a load bearing pin is arranged between the main hook and the fixing cylinder, a torsion spring is arranged between the load bearing pin and the main hook, and the torsion spring rotates the main hook in the opening direction. The lifting rod passes through the connecting block into the fixing cylinder, and the end of the lifting rod extending into the fixing cylinder is provided with an anti-unhooking head, the lifting rod and the connecting block are connected in the vertical direction, an insurance fastener is arranged in the fixing cylinder, the insurance fastener is connected with a retaining spring, the retaining spring moves the insurance fastener upward, the top of the insurance fastener abuts against the anti-unhooking head, an insurance pawl is arranged between the insurance fastener and the main hook in the fixing cylinder, and the insurance pawl prevents the main hook from rotating in the opening direction when the main hook is closed. A pin shaft is arranged between the insurance pawl and the fixing cylinder, a stop block is arranged on the main hook, and one end of the insurance pawl abuts against the stop block when the main hook is closed, and the other end of the insurance pawl is connected with the insurance fastener. The main hook rotates in the opening direction under the action of the torsion spring, and the forklift moves in the opposite direction of the opening of the main hook to exit the main hook, thereby realizing the self-unhooking function. When the main hook is closed again, the insurance fastener is reset upward as long as the upper beam is lifted, the main hook rotates in the closing direction, and the insurance pawl abuts against the stop block again.

2. The switchgear hoisting arrangement of claim 1, wherein: The cross beam and the longitudinal beam are fixedly connected with each other, the opening is arranged on the cross beam, and the self-unhooking hook is fixed to the longitudinal beam.

3. The switchgear hoisting arrangement of claim 1, wherein: A positioning slot is formed in the insurance fastener.

4. The switchgear hoisting arrangement of claim 3, wherein: The insurance fastener is in the shape of "n", and the positioning slot is formed in the side surface of the insurance fastener.

5. The switchgear hoisting arrangement of claim 4, wherein: A load bearing bracket is arranged in the fixing cylinder, the load bearing bracket is in the shape of "n", and a guide slot is formed between the load bearing bracket and the fixing cylinder, and the side surface of the insurance fastener extends into the guide slot.

6. The switchgear hoisting arrangement of claim 5, wherein: A limiting protrusion is arranged on the side surface of the main hook, and the limiting protrusion abuts against the fixing cylinder when the main hook is opened.

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