Hoisting device suitable for limited space and double locking assembly of hoisting device

Abstract

The invention discloses a hoisting device suitable for a limited space and a double locking assembly thereof, and relates to the technical field of hoisting equipment, the double locking assembly comprises a rotating piece matched with the hoisting assembly, a manual locking piece arranged on one side of the rotating piece and an electric locking piece arranged on the opposite side of the rotating piece, the electric locking piece is electrically connected with the manual locking piece; when the rotating piece assists the hoisting assembly in hoisting to a certain height, the electric locking piece moves to a locking position clamped with the rotating piece; and when the manual locking piece moves to an unlocking position separated from the rotating piece, the electric locking piece synchronously moves to an unlocking position separated from the rotating piece. And a double-locking assembly in which electric locking and manual locking are linked is adopted, so that the hoisting locking firmness and reliability are ensured, and safety accidents caused by shaking, falling and the like in the moving process are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoisting equipment, and more particularly to a hoisting device suitable for limited space and a double locking assembly thereof. BACKGROUND

[0002] At present, with the increasingly wide application of limited space such as machine rooms, vehicles, shelters and hangers, the maintenance and repair problems inside the limited space are gradually increasing. For example, electronic equipment cabins and the like, because a large number of electronic and electrical equipment are installed inside, after a period of use, the electronic and electrical equipment will face problems such as aging and failure, and need to be repaired and maintained regularly.

[0003] In the prior art, due to space utilization and cost considerations, sufficient space cannot be released in the limited space such as electronic equipment cabins for maintenance and repair operations, so the electronic and electrical equipment inside the limited space needs to be moved out. The electronic and electrical equipment is heavy and difficult to move, and needs to be assisted by a hoisting device. However, the space at the top of the limited space such as the electronic equipment cabin is also very limited, and the existing hoisting device cannot be installed at the top of the limited space. When hoisting operation is performed, there is a risk of accidents such as electronic and electrical equipment bumping and personnel injury due to unstable hoisting.

[0004] Therefore, there is an urgent need for a hoisting device that can be reasonably arranged and installed in a limited space, can assist in hoisting and moving, and has good safety and stability. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the purpose of the embodiments of the present application is to provide a hoisting device suitable for limited space and a double locking assembly thereof, to solve the problem that the existing hoisting device cannot be arranged and installed in a limited space, and the problem that the hoisting operation is unstable and prone to accidents such as bumping and personnel injury due to unstable hoisting.

[0006] To achieve the above-mentioned purpose, the first aspect of the embodiments of the present application provides a double locking assembly for assisting or limiting hoisting, comprising: a rotating member cooperating with a hoisting assembly; a manual locking member arranged on one side of the rotating member; and an electric locking member arranged on the opposite side of the rotating member and electrically connected with the manual locking member; When the rotating member assists the hoisting assembly to hoist to a certain height, the electric locking member moves to a locked position in engagement with the rotating member. When the manual locking member moves to an unlocked position separated from the rotating member, the electric locking member synchronously moves to an unlocked position separated from the rotating member.

[0007] In a preferred embodiment, the rotating member comprises: a rotating disc cooperating with the traction rope of the hoisting assembly; a guide rod cooperating with the rotating disc; wherein the rotating disc is provided with uniformly distributed locking holes in the circumferential direction, and is provided with uniformly distributed clamping teeth in the outer periphery.

[0008] In a preferred embodiment, one end of the guide rod is provided with a limiting block, and the other end is provided with a first piston; the limiting block moves along a transversely opened limiting slot; the first piston moves along a first horizontal slot in the upper part of the connecting slot.

[0009] In a preferred embodiment, the electric locking member comprises: a clamping block horizontally moving along a movable slot, and provided with a first magnet on the lower surface; a second piston moving along a second horizontal slot in the lower part of the connecting slot, and provided with a first magnet on the upper surface and a second magnet on the lower surface; a sliding block horizontally moving along the inner wall of the top part of the gap, and provided with a second magnet on the upper surface; and an electric push rod, the end of which abuts against the sliding block when electrically unlocked; wherein the first magnet provided on the lower surface of the clamping block and the first magnet provided on the upper surface of the second piston are magnetically opposite, and the second magnet provided on the lower surface of the second piston and the second magnet provided on the upper surface of the sliding block are magnetically opposite; the clamping block is locked when moving to be clamped between two adjacent clamping teeth, and is unlocked when moving to be separated from two adjacent clamping teeth.

[0010] In a preferred embodiment, the manual locking member comprises: a fixed block fixedly arranged on the inner wall of the lower part of the control slot; a locking block horizontally moving along the inner wall of the lower part of the control slot, and provided with a locking rod on the side facing the rotating disc; a hinged rod rotatably arranged on the upper part of the locking block, when the limiting piece arranged on one end cooperates with the fixed block, the locking rod moves to the unlocked position separated from the locking hole; a reset member, which is an elastic member located between the fixed block and the locking block; wherein the fixed block and the locking block are further provided with a contact rod electrically connected with the electric push rod; The locking rod is inserted into the locking hole to lock the rotation of the rotary disc, and the locking rod is separated from the locking hole to unlock the rotation of the rotary disc.

[0011] The second aspect of the embodiment of the present application provides a hoisting device suitable for a limited space, which is detachably installed on the top of the limited space, and comprises: an outer frame; an inner frame arranged inside the outer frame; a hoisting assembly symmetrically arranged with respect to the outer frame and the inner frame; a driving assembly connected with the outer frame and the inner frame and driving the outer frame and the inner frame to move on the top of the limited space, and connected with the hoisting assembly and driving the hoisting assembly to hoist a piece to be hoisted; and a double locking assembly, which is the double locking assembly provided in the first aspect of the embodiment of the present application.

[0012] In a preferred embodiment, the driving assembly comprises: a first driving member arranged between the outer frame and the limited space and driving the outer frame to move along the length direction on the top of the limited space; a second driving member connecting the outer frame and the inner frame and driving the inner frame to move along the width direction of the limited space on the outer frame; a traction driving member connecting the hoisting assembly and the limited space and driving the hoisting assembly to hoist the piece to be hoisted.

[0013] In a preferred embodiment, the hoisting assembly comprises: a fixed pulley block symmetrically arranged on the inner frame; a movable pulley block arranged below the inner frame to hoist the piece to be hoisted; and a traction rope arranged in pairs, one end of each of the traction ropes being fixed to the inner side of the inner frame, and the other end of each of the traction ropes being sequentially wound around the movable pulley block, the fixed pulley block, and then connected with the traction driving member; The fixed pulley block comprises: a first fixed pulley arranged on the upper part of the inner frame; a second fixed pulley, which is arranged in pairs, each pair of the second fixed pulleys being symmetrically arranged on the inner side of the inner frame.

[0014] In a preferred embodiment, the movable pulley block comprises: a connector, the upper part of the connector being provided with a limiting rod, the limiting rod being moved to a position matched with a limiting hole in the lower part of the inner frame to limit the hoisting height of the movable pulley block; A movable pulley connected to the connector; A hanging rope sleeved on the lower part of the to-be-lifted piece to lift the to-be-lifted piece; A hook arranged below the connector and connected to the to-be-lifted piece during lifting; The connector is internally provided with a reel with a limiting structure, the connecting rope is wound on the reel, and the free end of the connecting rope extends out of the connector and is connected to the hanging rope through a connecting ring.

[0015] In a preferred embodiment, a limiting cavity is arranged in the middle of the inner layer frame; the double locking assembly is symmetrically arranged inside the limiting cavity, and the rotating disc of each double locking assembly is matched with a limiting ring on the traction rope.

[0016] The beneficial effects of the present application are as follows: (1) The double locking assembly with linkage of electric locking and manual locking is matched with the lifting assembly, and during lifting, the auxiliary lifting assembly lifts the to-be-lifted piece stably; when the to-be-lifted piece is lifted to the required position, the clamping block of the electric locking part is automatically clamped with the tooth groove on the rotating disc of the lifting assembly, so as to realize the locking of the rotating disc; by manually operating the manual locking part on the other side of the rotating disc, the locking rod of the manual locking part is inserted into the locking hole on the rotating disc, so as to realize double locking, ensure the locking firmness and reliability of the lifting assembly and the to-be-lifted piece at a certain height, and effectively avoid shaking, falling and the like during movement; when unlocking, the manual locking part is manually operated to unlock, and the electric locking part is linked and unlocked synchronously, so that the operation is simple and efficient. (2) The lifting device which can be flexibly installed according to the actual situation of the limited space is adopted to meet the lifting and carrying requirements in the limited space; at the same time, the fixed pulley set and the movable pulley set are arranged inside and at the lower part of the inner layer frame, so as to reduce the occupation of space; after the hook and the hanging rope are connected to the to-be-lifted piece, the to-be-lifted piece is lifted to the required height, the limiting rod of the movable pulley set is matched with the limiting hole at the lower part of the inner layer frame, the to-be-lifted piece is limited from shaking during translation, and the stability of the to-be-lifted piece during movement with the inner layer frame and the outer layer frame is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the limiting cavity; Figure 2 It is a partial enlarged view of A of Figure 1 Figure 3 It is a partial enlarged view of B of Figure 1 Figure 4 It is a structural schematic view of the guide rod; Figure 5 ​​Structure diagram of the lifting device installed on the top of the electrical equipment cabin; Figure 6 Structure diagram of the whole lifting device; Figure 7 Structure diagram of the left side of the lifting assembly; Figure 8 Structure diagram of the right side of the lifting assembly.

[0018] Wherein: 1 - double locking assembly; 11 - rotating part; 111 - rotating disc, 1111 - locking hole, 1112 - clamping tooth; 112 - guide rod, 1121 - limiting block, 1122 - first piston; 113 - connecting groove, 1131 - first horizontal groove, 1132 - vertical groove, 1133 - second horizontal groove; 12 - manual locking part; 121 - fixed block; 122 - locking block, 1221 - locking rod; 123 - hinged rod, 1231 - limiting piece; 124 - reset part; 125 - touch rod; 13 - electric locking part; 131 - clamping block, 132 - second piston, 133 - sliding block, 134 - electric push rod; 135 - first magnet, 136 - second magnet; 2 - lifting assembly; 21 - fixed pulley block, 211 - first fixed pulley, 212 - second fixed pulley; 22 - movable pulley block; 221 - connector, 2211 - limiting rod; 222 - movable pulley; 223 - hanging rope, 2231 - connecting ring, 2232 - connecting rope; 224 - hook; 23 - traction rope, 231 - limiting ring; 3 - driving assembly; 31 - first driving part, 32 - second driving part, 33 - traction driving part; 4 - outer frame; 5 - inner frame, 51 - limiting cavity. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Embodiment one Please refer to Figure 1 , Figure 2 and Figure 3A double locking assembly 1 is used to assist or limit lifting; comprising: A rotating member 11 cooperates with the lifting assembly 2; a manual locking member 12 is arranged on one side of the rotating member 11; and an electric locking member 13 is arranged on the opposite side of the rotating member 11 and is electrically connected with the manual locking member 12; wherein when the rotating member 11 assists the lifting assembly 2 to lift to a certain height, the electric locking member 13 moves to a locking position engaged with the rotating member 11; When the manual locking member 12 moves to an unlocking position separated from the rotating member 11, the electric locking member 13 synchronously moves to an unlocking position separated from the rotating member 11.

[0021] Specifically, the double locking assembly 1 cooperates with the lifting assembly 2 of the lifting device, and in the lifting process, assists the lifting assembly 2 to stably lift the to-be-lifted member; when lifted to a certain height, the double locking assembly 1 locks the lifting assembly 2, locks the lifting assembly 2 and the to-be-lifted member lifted thereby at a certain height, so as to facilitate the stable movement of the lifting device at the top of the limited space, and eliminate the safety hazards such as bumping and personnel casualties caused by shaking during lifting.

[0022] When the double locking assembly 1 works, the rotating member 11 cooperates with the lifting assembly 2 to assist the lifting assembly 2 to stably lift the to-be-lifted member; when the rotating member 11 assists the lifting assembly 2 to lift to a certain height, the electric locking member 13 automatically moves to the position engaged with the rotating member 11, limits the continuous rotation of the rotating member 11, and locks the rotating member 11 in the current state, and then the manual locking member 12 on the opposite side is manually operated to be inserted into the rotating member 11, further limiting the rotation of the rotating member 11 and strengthening the locking of the current state of the rotating member 11. When the to-be-lifted member is moved to the required position, the manual locking member 12 is manually separated from the rotating member 11, and the manual locking member 12 is unlocked to limit the locking of the rotating member 11; the electric locking member 13 is electrically connected with the manual locking member 12, and when the manual locking member 12 is unlocked, the electric locking member 13 is linked with the manual locking member 12, synchronously separated from the rotating member 11, and the rotation of the rotating member 11 is unlocked, and the lifting assembly 2 stably lowers the to-be-lifted member.

[0023] Through the double locking assembly 1, the auxiliary hoisting assembly 2 is smoothly hoisted during hoisting, and the possibility of safety accidents such as shaking and falling of the hoisted part during hoisting is reduced; during movement, the hoisting assembly 2 is double-locked by the electric locking part 13 and the manual locking part 12, so that the hoisting locking is firm, and the phenomenon of the hoisted part falling off during movement in a limited space is effectively avoided; at the same time, when the electric locking part 13 is locked, the manual locking part 12 is manually operated to strengthen the locking; when the manual locking part 12 is unlocked, the electric locking part 13 is linked with the manual locking part 12 and is synchronously unlocked, so that on the one hand the locking of the hoisting assembly 2 is strengthened, and on the other hand the efficiency during use is improved due to the linkage of the manual locking part 12 and the electric locking part 13, and both advantages are possessed. In addition, the manual locking part 12 and the electric locking part 13 are arranged on opposite sides of the rotating part 11, and compared with other arrangements, this arrangement is beneficial to bidirectional mechanical balance, avoids local stress concentration of the rotating part 11 when locked, and is more beneficial to improving the reliability of the locking and reducing the risk of failure of unilateral locking.

[0024] Please refer to Figure 2 and Figure 4 In a preferred embodiment of the present embodiment, the rotating part 11 comprises: a rotating disc 111 cooperating with the traction rope 23 of the hoisting assembly 2, and a guide rod 112 cooperating with the rotating disc 111; wherein the rotating disc 111 is provided with uniformly distributed locking holes 1111 in the circumferential direction, and the outer periphery thereof is provided with uniformly distributed clamping teeth 1112.

[0025] Specifically, the circumferential outer side of the guide rod 112 is provided with a guide groove in the length direction of the guide rod 112; the rotating disc 111 is disc-shaped, and the middle part thereof is connected with the guide rod 112 through a guide block, and the guide block cooperates with the guide groove. The clamping teeth 1112 are equidistantly arranged on the circumferential outer side of the rotating disc 111, the length direction of each clamping tooth 1112 is parallel to the axial direction of the rotating disc 111, and a tooth groove for clamping the limiting ring 231 on the traction rope 23 is formed between the adjacent two clamping teeth 1112, and when the tooth groove cooperates with the electric locking part 13, the electric locking part 13 realizes the electric locking of the rotating disc 111. At the same time, a plurality of locking holes 1111 are equidistantly arranged on the rotating disc 111 along the circumferential direction, the locking holes 1111 correspond to the positions of the manual locking parts 12, and when the manual locking parts 12 are inserted into the locking holes 1111, the manual locking parts 12 realize the manual locking of the rotating disc 111. When the rotating disc 111 is locked by clamping the limiting ring 231 on the traction rope 23, the traction rope 23 is also locked, thereby limiting the hoisting assembly 2 and the hoisted part, and ensuring the stability and safety during subsequent movement.

[0026] In a further embodiment of the preferred embodiment, one end of the guide rod 112 is provided with a limiting block 1121 and the other end is provided with a first piston 1122; the limiting block 1121 moves along a transversely opened limiting slot; and the first piston 1122 moves in a closed connecting slot 113 and along a first horizontal slot 1131 in the upper portion of the connecting slot 113.

[0027] Specifically, when the rotary disc 111 assists the lifting assembly 2 in lifting, the rotary disc 111 rotates, and the guide rod 112, with one end provided with a limiting block 1121 and the other end provided with a first piston 1122, moves transversely under the driving of the rotary disc 111, and drives the limiting block 1121 at one end to move transversely along the limiting slot and the first piston 1122 at the other end to move along the first horizontal slot 1131. That is, when lifting, the rotary disc 111 rotates, and the guide rod 112 moves towards the vertical slot end close to the connecting slot 113, drives the limiting block 1121 at one end to move left along the limiting slot and the first piston 1122 at the other end to move left along the first horizontal slot 1131.

[0028] Please refer to Figure 2 In another preferred embodiment of the present embodiment, the electric locking member 13 comprises a clamping block 131, which moves horizontally along a movable slot and is provided with a first magnet 135 on the lower surface; a second piston 132, which moves along a second horizontal slot 1133 in the lower portion of the connecting slot 113 and is provided with a first magnet 135 on the upper surface and a second magnet 136 on the lower surface; a sliding block 133, which moves horizontally along the inner wall of the top portion of the gap and is provided with a second magnet 136 on the upper surface; and an electric push rod 134, the end of which abuts against the sliding block 133 when electrically unlocked.

[0029] Among them, the first magnet 135 provided on the lower surface of the clamping block 131 and the first magnet 135 provided on the upper surface of the second piston 132 are magnetically opposite, and the second magnet 136 provided on the lower surface of the second piston 132 and the second magnet 136 provided on the upper surface of the sliding block 133 are magnetically opposite.

[0030] When the clamping block 131 moves to be clamped between the adjacent two clamping teeth 1112, the rotation of the rotary disc 111 is locked, and when the clamping block 131 moves to be separated from the adjacent two clamping teeth 1112, the rotation of the rotary disc 111 is unlocked.

[0031] Specifically, please refer to Figure 2 ​When the first piston 1122 moves left along the first horizontal slot 1131, the volume of the connecting slot 113 on the left side of the first piston 1122 is compressed, and the air pressure in the connecting slot 113 increases. When the air pressure in the connecting slot 113 on the left side of the first piston 1122 increases, it pushes the second piston 132 to move right along the second horizontal slot 1133 at the lower part of the connecting slot 113. The second magnet 136 arranged on the lower surface of the second piston 132 is attracted to the second magnet 136 arranged on the upper surface of the slider 133, so that the second piston 132 drives the slider 133 to move right along the inner wall of the gap at the top. The first magnet 135 arranged on the upper surface of the second piston 132 is attracted to the first magnet 135 arranged on the lower surface of the clamping block 131, so that the second piston 132 drives the clamping block 131 to move right along the movable slot until the clamping block 131 is clamped in the tooth groove on the turntable 111, realizing the electric locking of the electric locking member 13 to the turntable 111.

[0032] Please refer to Figure 3 In another preferred embodiment of the present embodiment, the manual locking member 12 comprises: A fixed block 121 is fixedly arranged on the inner wall at the lower part of the control slot. A locking block 122 moves horizontally along the inner wall at the lower part of the control slot, and the side of the locking block 122 facing the turntable 111 is provided with a locking rod 1221. A hinged rod 123 is arranged on the upper part of the locking block 122, and when the limiting piece 1231 arranged at one end of the hinged rod 123 cooperates with the fixed block 121, the locking rod 1221 moves to the unlocking position separated from the locking hole 1111. A reset member 124 is an elastic member arranged between the fixed block 121 and the locking block 122, and a touch rod 125 electrically connected to the electric push rod 134 is further arranged between the fixed block 121 and the locking block 122.

[0033] The locking rod 1221 is inserted into the locking hole 1111 to lock the rotation of the turntable 111, and the locking rod 1221 is separated from the locking hole 1111 to unlock the rotation of the turntable 111.

[0034] When the electric locking piece 13 preliminarily locks the rotation of the rotating disc 111, in order to ensure the stability of the to-be-lifted piece moving on the top of the limited space, the manual locking piece 12 is arranged to manually further lock the rotation of the rotating disc 111. Specifically, the articulated rod 123 located on the upper part of the locking block 122 is manually turned over, so that the limiting sheet 1231 arranged on one end of the articulated rod 123 is separated from the fixed block 121. Under the action of the reset piece 124, the locking block 122 automatically moves horizontally along the inner wall of the lower part of the control groove until the locking rod 1221 arranged on one side of the locking block 122 is inserted into the locking hole 1111 arranged on the rotating disc 111, so that the manual locking piece 12 further locks the rotation of the rotating disc 111. When the rotating disc 111 is manually locked, the contact rod 125 of the manual locking piece 12 is powered off, and the electrical connection between the manual locking piece 12 and the electric locking piece 13 is disconnected. The reset piece 124 is a reset spring or other elastic component with elastic contraction and expansion.

[0035] When the to-be-lifted piece is moved to the required position, and the rotating disc 111 is unlocked, referring to Figure 2 and Figure 3 , first, the articulated rod 123 located on the upper part of the locking block 122 is manually turned over until the limiting sheet 1231 is attached to one side of the fixed block 121. During the operation, the locking block 122 moves horizontally along the inner wall of the lower part of the control groove until the locking rod 1221 arranged on one side of the locking block 122 is separated from the locking hole 1111 arranged on the rotating disc 111, so that the manual locking piece 12 locks the rotating disc 111, and the reset piece 124 is in a compressed state between the locking block 122 and the fixed block 121. At the same time, the contact rod 125 located between the locking block 122 and the fixed block 121 is powered on, so that the electrical connection between the electric locking piece 13 and the manual locking piece 12 is conducted, and the electric push rod 134 is powered on to drive the sliding block 133 arranged on one end of the electric push rod 134 to move leftward along the inner wall of the gap top. The second magnet 136 arranged on the upper surface of the sliding block 133 is attracted to the second magnet 136 arranged on the lower surface of the second piston 132, so that the sliding block 133 moves leftward to drive the second piston 132 to move leftward. The first magnet 135 arranged on the upper surface of the second piston 132 is attracted to the first magnet 135 arranged on the lower surface of the clamping block 131, so that the second piston 132 moves leftward to drive the clamping block 131 to move leftward until the clamping block 131 is separated from the tooth groove, so that the electric locking piece 13 is unlocked to limit the rotation of the rotating disc 111. The electric push rod 134 completes a working cycle from the compressed state to the stretched state and then to the compressed state each time the circuit is conducted. When the electric push rod 134 is in the stretched state, the sliding block 133 is driven to move, thereby driving the unlocking of the electric locking piece 13. When the electric push rod 134 is in the compressed state, it returns to the original position and does not abut against the sliding block 133, so that the sliding block 133 and the clamping block 131 stay in the original position, thereby facilitating the next locking.

[0036] In summary, to solve the problem that the hoisting assembly 2 and the hoisted part are prone to violent shaking and knocking, and even falling to cause casualties during hoisting and moving due to unstable hoisting and insecure locking, a double locking assembly 1 with electric locking and manual locking linkage is adopted, which cooperates with the hoisting assembly 2 to assist the hoisting assembly 2 to stably hoist the hoisted part during hoisting. When the hoisted part is hoisted to the required position, the clamping block 131 of the electric locking part 13 automatically clamps the tooth groove on the rotating disc 111 of the hoisting assembly 2 to lock the rotation of the rotating disc 111. To further enhance the stability of the locking, the manual locking part 12 is manually operated to insert the locking rod 1221 of the manual locking part 12 into the locking hole 1111 on the rotating disc 111 to realize double locking and ensure the locking firmness and stability of the hoisting assembly 2 and the hoisted part at a certain height, so as to effectively avoid the safety risks such as shaking and falling during moving. When unlocking, the manual locking part 12 is manually operated to unlock, and the electric locking part 13 is linked and unlocked synchronously, which is simple and efficient to operate.

[0037] Embodiment two Please refer to Figure 5 and Figure 6 , the embodiment provides a hoisting device suitable for limited space, which is detachably installed on the top of the limited space; comprising: an outer frame 4, an inner frame 5 arranged inside the outer frame 4, a hoisting assembly 2 symmetrically arranged with respect to the outer frame 4 and the inner frame, a driving assembly 3 connected with the outer frame 4 and the inner frame 5 and driving the outer frame 4 and the inner frame 5 to move on the top of the limited space, a hoisting assembly 2 connected with the driving assembly 3 and driving the hoisting assembly 2 to hoist the hoisted part, and the double locking assembly 1 illustrated in embodiment one of the present application.

[0038] The embodiment takes an electrical equipment cabin as an example to illustrate the installation and work of the hoisting device provided by the present application on the top of the limited space. Please refer to Figure 5 , taking an electrical equipment cabin as an example, there are a plurality of electronic equipment of different sizes in the electrical equipment cabin. When moving, usually a part of the whole is hoisted or moved to free up space for maintenance and repair, that is, not the whole equipment is hoisted. When hoisting, the hoisting assembly 2 and its related components of the hoisting device are connected, bound, wrapped around and the like with part of the structure of the electrical equipment, so as to complete hoisting and moving, and further free up the required space for maintenance and repair.

[0039] Specifically, please refer to Figure 5 and Figure 6The lifting device is of detachable structure and can be installed according to the actual situation of the limited space. When the lifting device is installed on the top of the limited space, first, two slide rails are arranged in the length direction of the limited space, and the two ends of the outer frame 4 are respectively built on the two slide rails, and the outer frame 4 can move along the length direction of the top of the limited space under the driving of the driving assembly 3 connected thereto; then the inner frame 5 is arranged inside the outer frame 4, and the inner frame 5 moves along the length direction of the top of the limited space together with the outer frame 4, and moves along the length direction of the outer frame 4 under the driving of the driving assembly 3 connected thereto, that is, the inner frame 5 moves along the width direction of the top of the limited space under the driving of the driving assembly 3. Therefore, under the cooperation of the inner frame 5 and the outer frame 4, the whole can be moved to any position required on the top of the limited space.

[0040] The inner frame 5 and the outer frame 4 form a double-layer frame structure, and the lifting assembly 2 is arranged symmetrically with respect to the inner frame 5 and the outer frame 4 by using the firmness and stability of the double-layer frame structure, which helps to improve the stability of the lifting process; in addition, the double locking assembly 1 cooperates with the lifting assembly 2 to ensure stable lifting and firm locking after lifting, so that the hoisted part can be kept stable and not shaken when moving on the top of the limited space after being lifted to a certain height under the driving of the inner frame 5 and the outer frame 4, and falling can be avoided until the inner frame 5 and the outer frame 4 are moved to the required position.

[0041] To solve the problem that the lifting device is difficult to be arranged and installed in the limited space, the lifting device suitable for the limited space provided by the present application can be adjusted and installed according to the actual situation of the limited space, and the lifting device suitable for the limited space is shown in Figure 6 The ratio of the inner frame 5 to the outer frame 4 and the ratio relationship thereof are only examples and are not limited in the present application, but in actual application, the size ratio can be adjusted according to actual needs, for example, the inner frame 5 can be arranged smaller in the length direction, which can increase the distance of the inner frame 5 moving along the outer frame 4; or the inner frame 5 can be arranged larger, which can reduce the distance of the inner frame 5 moving along the outer frame 4, and then the stroke and the moving accuracy of the lifting device on the top of the limited space can be adjusted. In addition, the driving assembly 3 of the present application can also be installed and adjusted according to the actual situation of the limited space, and the installation direction and the driving stroke of the driving assembly 3 can be adjusted according to actual use needs to meet the use needs of the limited space.

[0042] Please refer to Figure 6 In a preferred embodiment based on the present embodiment, the driving assembly 3 comprises: The first driving member 31 is arranged between the outer frame 4 and the limited space, and drives the outer frame 4 to move along the length direction of the limited space; the second driving member 32 is connected between the outer frame 4 and the inner frame 5, and drives the inner frame 5 to move along the width direction of the limited space; the traction driving member 33 is connected between the hoisting assembly 2 and the limited space, and drives the hoisting assembly 2 to hoist the to-be-hoisted member.

[0043] Specifically, the first driving member 31 is connected between the outer frame 4 and the inner wall of the top of the limited space, and drives the outer frame 4 to move along the length direction of the top of the limited space. As an example, the first driving member 31 includes a first motor installed on the inner wall of the electrical equipment cabin, a lead screw connected with the motor shaft of the first motor, a sliding rail arranged along the length direction of the limited space, and a nut fixedly arranged on the outer frame 4, which can also be other structures capable of threadedly rotating with the lead screw. The first motor can be installed on the right inner wall of the limited space, such as the right inner wall in FIG. 1, to drive the outer frame 4 to move to the left of the first motor, or can be installed on the left inner wall of the limited space to drive the outer frame 4 to move to the right of the first motor, which can be installed according to actual use requirements. Figure 6

[0044] The second driving member 32 is connected between the outer frame 4 and the inner frame 5, and drives the inner frame 5 to move on the outer frame 4, i.e., the inner frame 5 moves on the outer frame 4 along the width direction of the top of the limited space. As an example, the second driving member 32 includes a rack arranged on the upper portion of the outer frame 4, a second motor fixedly arranged on the inner frame 5, and a gear connected with the motor shaft of the second motor, wherein the rack is arranged along the length direction of the outer frame 4 and the width direction of the limited space. When the second motor works, it drives the gear connected with the motor shaft of the second motor to rotate, and the gear meshes with the rack, so that the gear moves along the length direction of the rack, thereby driving the inner frame 5 to move along the length direction of the outer frame 4, i.e., along the width direction of the limited space. The installation direction of the second driving member 32 can also be adjusted according to actual use requirements.

[0045] The traction driving member 33 is connected between the hoisting assembly 2 and the limited space, and drives the hoisting assembly 2 to hoist the to-be-hoisted member. As an example, the traction driving member 33 includes a traction motor installed on the inner wall of the limited space, which can be detachably installed on the inner wall of the limited space.

[0046] ​The traction motor is installed on the inner wall of the top of the limited space, and the slide rail is also installed on the top of the limited space. When meeting the lifting and carrying of electrical equipment, the lifting device has the best travel and saves the application cost. It can also avoid the release of too large length of the traction rope 23 affecting the lifting strength of the whole lifting device. The traction motor can be installed on the right side of the top of the limited space, and can also be installed on the left side of the top of the limited space. Only the winding direction of the traction rope 23 on the first fixed pulley 211 needs to be adjusted. Similarly, the first motor of the first driving member 31 can also be installed on the left side of the inner wall, and the second driving member 32 can also be adjusted according to actual needs. Figure 6 The traction motor can be installed on the right side of the top of the limited space, and can also be installed on the left side of the top of the limited space. Only the winding direction of the traction rope 23 on the first fixed pulley 211 needs to be adjusted. Similarly, the first motor of the first driving member 31 can also be installed on the left side of the inner wall, and the second driving member 32 can also be adjusted according to actual needs.

[0047] In summary, the first driving member 31 and the second driving member 32 can realize the reciprocating movement of the outer frame 4 along the slide rail in the length direction of the limited space through the forward and reverse rotation of the first motor; and can realize the reciprocating movement of the inner frame 5 on the outer frame 4 through the forward and reverse rotation of the second motor. For the traction driving member 33, the traction motor can drive the lifting assembly 2 to lift or lower the to-be-lifted member through the forward and reverse rotation of the traction motor, which is convenient to operate. The first driving member 31, the second driving member 32 and the traction driving member 33 cooperate with each other to realize the stable lifting of the lifting device and the stable movement of the lifting device on the top of the limited space.

[0048] Please refer to Figure 6 、 Figure 7 and Figure 8 In another preferred embodiment based on the present embodiment, the lifting assembly 2 comprises: a fixed pulley set 21 symmetrically arranged on the inner frame 5; a movable pulley set 22 located below the inner frame 5 to lift the to-be-lifted member; and a traction rope 23 arranged in pairs, one end of each traction rope 23 being fixed to the inner side of the inner frame 5, and the other end being sequentially wound around the movable pulley set 22 and the fixed pulley set 21 and then connected with the traction driving member 33.

[0049] The fixed pulley set 21 comprises: a first fixed pulley 211 arranged on the upper part of the inner frame 5; and a second fixed pulley 212 arranged in pairs, each pair of the second fixed pulley 212 being symmetrically arranged on the inner side of the inner frame 5.

[0050] Specifically, the first fixed pulley 211 is installed at the middle position of one end of the inner layer frame 5 through a fixing shaft or the like, and the second fixed pulley 212 is arranged in pairs and is installed at the inner side of the inner layer frame 5 close to the opposite end through a fixing shaft or the like. By arranging the second fixed pulley 212 at the inner side of the inner layer frame 5, the space occupied by the second fixed pulley 212 can be reduced. One end of the traction rope 23 is connected to a fixed end, and the fixed end is fixedly arranged at the inner side of the inner layer frame 5 and is closer to the opposite end of the inner layer frame 5 than the position of the fixed pulley. The other end of the traction rope 23 is fixed to the fixed end, and then is wound around the movable pulley set 22, the second fixed pulley 212, and the first fixed pulley 211 in sequence, and then is connected to a traction shaft, which is connected to the motor shaft of the traction motor, and the traction shaft can wind the traction rope 23.

[0051] The traction rope 23 cooperates with the tooth grooves on the rotating disc 111, and the traction rope 23 can be arranged in a rope structure with a limiting ring 231 and can directly cooperate with the tooth grooves, or can be twisted together by multiple steel ropes and the limiting ring 231 is arranged on the outer ring thereof. When the traction rope 23 is twisted together by multiple steel ropes and the limiting ring 231 is arranged on the outer ring thereof, the inner side of the limiting ring 231 in contact with the steel ropes is provided with a hinge pin or the like structure, so that the limiting ring 231 can be inserted into the twisted and woven position of the multiple steel ropes through the hinge pin to fix the limiting ring 231 on the traction rope 23; at the same time, the limiting rings 231 should be arranged at equal intervals and correspond to the tooth grooves on the rotating disc 111 one by one. In some embodiments, the limiting ring 231 can also be fixed on the traction rope 23 by other means.

[0052] Please refer to Figure 6 , Figure 7 and Figure 8 , in another preferred embodiment based on the present embodiment, the movable pulley set 22 comprises: a connector 221, the upper part of which is provided with a limiting rod 2211, the limiting rod 2211 moves to a position matched with a limiting hole at the lower part of the inner layer frame 5 to limit the lifting height of the movable pulley set 22; a movable pulley 222 connected to the connector 221; a hanging rope 223 sleeved at the lower part of the to-be-lifted member to lift the to-be-lifted member; and a hook 224 arranged below the connector 221 and connected to the to-be-lifted member during lifting.

[0053] Among them, the connector 221 is provided with a reel with a limiting structure, the connecting rope 2232 is wound on the reel, and the free end thereof extends out of the connector 221 and is connected to the hanging rope 223 through a connecting ring 2231.

[0054] Specifically, the movable pulley set 22 is arranged in pairs, and the two movable pulleys 222 and the connector 221 on both sides thereof are located below the inner frame 5. The connector 221 and the movable pulley 222 are also located between the fixed end and the second movable pulley 222, thereby reducing the occupation of the movable pulley set 22 to the limited space. The lower part of the inner frame 5 is provided with a limiting hole corresponding to the limiting rod 2211, and the movable pulley 222 is arranged at the upper part of the inner side of the connector 221.

[0055] When hoisting, the hooks 224 on both sides of the movable pulley set 22 are respectively hooked on both sides of the to-be-hoisted member. One end of the hanging rope 223 is disconnected from the connecting ring 2231, and the other end is kept connected with the connecting ring 2231. Then, the disconnected end of the hanging rope 223 is passed through the lower part of the bottom or the middle position of the to-be-hoisted member, and then connected with the connecting ring 2231. By operating the reel with a limiting structure in the connector 221, the hanging rope 223 is tightened, and the tightening state of the hanging rope 223 is locked by the limiting structure, thereby achieving firm binding and reliable hooking of the hooks 224 and the hanging rope 223 to the to-be-hoisted member. After the preparation work is completed, the traction motor is operated in the forward direction, the traction rope 23 is pulled, and the traction rope 23 is stably tightened under the assistance of the double locking assembly 1. The movable pulley set 22 and the to-be-hoisted member are stably hoisted and moved upward. When the limiting rod 2211 at the upper part of the connector 221 is inserted into the limiting hole formed in the lower part of the inner frame 5, the height of the movable pulley set 22 and the to-be-hoisted member is limited by the inner frame 5. At this time, the upper surface of the connector 221 is in contact with the lower surface of the inner frame 5, and the upper part of the movable pulley 222 is lifted to the inside of the inner frame 5, thereby reducing the occupation of the movable pulley 222 to the limited space. After reaching the hoisting height, the electric locking member 13 of the double locking assembly 1 immediately limits the rotation of the rotating disc 111, and locks the tightening state of the traction rope 23. After the operator sees this, the operator manually operates the manual locking member 12, and further locks the tightening state of the traction rope 23, so that the movable pulley set 22 and the to-be-hoisted member are locked at the current height. Then, the inner frame 5 and the outer frame 4 are driven to move at the top of the limited space by the first driving member 31 and the second driving member 32, thereby driving the to-be-hoisted member to move to the required position.

[0056] After the to-be-hoisted member is transported to the specified position, the operator manually operates the manual locking member 12 to release the locking of the rotating disc 111 by the manual locking member 12, and the electric locking member 13 electrically connected thereto is unlocked synchronously. The traction motor is operated in the reverse direction, and the traction rope 23 is stably loosened under the assistance of the double locking assembly 1, so that the movable pulley set 22 and the to-be-hoisted member are stably lowered until they are lowered to the specified position. Then, the hanging rope 223 is separated from the lower part of the to-be-hoisted member, and the two hooks 224 are separated from the to-be-hoisted member, and the whole hoisting and transporting operation is completed.

[0057] To ensure the hanging rope 223 hoisting process to the hoisting piece bundle firm, the hanging rope 223 is provided with two or more than two in the middle of the two connectors 221. In addition, the connector 221 is provided with a reel with limiting structure, please refer to Figure 7 And Figure 8 , as an example, the connector 221 inside the storage space for the reel and the connection rope 2232 wound on the reel; the end of the connection rope 2232 extends out of the connector 221, connected with the hanging rope 223 through the connecting ring 2231. A limiting disc is provided outside the connector 221, which is connected with the end of the reel extending out of the connector 221 through the clamping block and the like; the limiting disc is provided with evenly distributed limiting columns on the side close to the connector 221, and the connector 221 is provided with a card hole corresponding to the limiting column; when the connection rope 2232 is wound to the required length, the limiting column on the limiting disc can be inserted into the card hole to limit the length of the connection rope 2232.

[0058] Please refer to Figure 6 , the inner frame 5 is provided with a limiting cavity 51 in the middle; the double locking assembly 1 is symmetrically arranged inside the limiting cavity 51, and the rotating disc 111 of each double locking assembly 1 is matched with the limiting ring 231 on the traction rope 23.

[0059] Specifically, the limiting cavity 51 is arranged at the middle position of the length direction of the inner frame 5, and the two ends are fixedly connected with the inner frame 5. As an example, a limiting plate can be arranged inside the limiting cavity 51 to install the double locking part, which can also strengthen the strength and rigidity of the limiting cavity 51. At this time, the limiting groove, connecting groove 113, notch, control groove and the like for installing the double locking assembly 1 are all arranged on the limiting plate. When the limiting plate is not arranged, the double locking part can be directly installed on the shell of the limiting cavity 51. The traction rope 23 penetrates the limiting cavity 51 and cooperates with the double locking assembly 1 arranged on the limiting cavity 51. Specifically, the limiting ring 231 on the traction rope 23 is tightly engaged with the tooth groove on the rotating disc 111.

[0060] In conclusion, the detachable hoisting device provided by the application can adjust the proportion of the inner frame 5 and the outer frame 4 according to actual use requirements, and the driving assembly 3 can be flexibly installed according to actual requirements, so as to meet the use requirements of hoisting and carrying in limited space; the first driving part 31, the second driving part 32 and the traction driving part 33 are mutually matched to stably hoist and lower the to-be-hoisted part; the fixed pulley set 21 of the hoisting assembly 2 is symmetrically arranged on the inner frame 5, so as to reduce the occupation of limited space, and the movable pulley set 22 is arranged at the lower part of the inner frame 5, is connected with the to-be-hoisted part through the hook 224 and the hanging rope 223, and after hoisting the to-be-hoisted part to the required height, the limiting rod 2211 of the movable pulley set 22 is matched with the limiting hole at the lower part of the inner frame 5, so as to limit the shaking of the to-be-hoisted part during translation, and the stability of the to-be-hoisted part during movement with the inner frame 5 and the outer frame 4 is ensured.

[0061] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any modification or replacement within the technical range disclosed by the present application can be easily thought by those skilled in the art, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0062] Finally, the above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A double locking assembly, characterized in that: The double locking assembly (1) is used to assist or limit lifting; it includes: A rotating member (11) cooperates with the lifting assembly (2); A manual locking member (12) is provided on one side of the rotating member (11); and an electric locking member (13) disposed on an opposite side of the rotating member (11) and electrically connected to the manual locking member (12); When the rotating member (11) assists the hoisting assembly (2) in lifting to a certain height, the electric locking member (13) moves to a locking position engaged with the rotating member (11); When the manual locking member (12) moves to an unlocking position separated from the rotating member (11), the electric locking member (13) synchronously moves to an unlocking position separated from the rotating member (11).

2. The double locking assembly according to claim 1, wherein: The rotating member (11) comprises: A turntable (111) cooperates with a traction rope (23) of the hoisting assembly (2); A guide rod (112) cooperates with the turntable (111); The rotating disk (111) is provided with evenly distributed locking holes (1111) along the circumferential direction, and evenly distributed latching teeth (1112) are provided on its outer circumference.

3. The double locking assembly according to claim 2, characterized in that: One end of the guide rod (112) is provided with a limit block (1121), and the other end is provided with a first piston (1122); The limiting block (1121) moves along a limiting groove opened laterally; The first piston (1122) moves in the closed connecting groove (113) and moves along the first horizontal groove (1131) at the upper portion of the connecting groove (113).

4. The double locking assembly according to claim 3, wherein: The electric locking member (13) comprises: A snap-fit ​​block (131), the snap-fit ​​block (131) moves horizontally along the movable slot, and a first magnet (135) is provided on its lower surface; a second piston (132), the second piston (132) moves along a second horizontal groove (1133) at the lower portion of the connecting groove (113), and a first magnet (135) is provided on its upper surface and a second magnet (136) is provided on its lower surface; A slider (133), the slider (133) moves horizontally along the inner wall of the top of the notch, and a second magnet (136) is provided on the upper surface of the slider (133); and An electric push rod (134), the end of which abuts against the slider (133) during electric unlocking; The first magnet (135) provided on the lower surface of the locking block (131) and the first magnet (135) provided on the upper surface of the second piston (132) have opposite magnetic properties, and the second magnet (136) provided on the lower surface of the second piston (132) and the second magnet (136) provided on the upper surface of the slider (133) have opposite magnetic properties. When the engaging block (131) moves to engage with two adjacent latch teeth (1112), the rotation of the rotating disk (111) is locked; when the engaging block (131) moves to separate from the two adjacent latch teeth (1112), the rotation of the rotating disk (111) is unlocked.

5. The double locking assembly according to claim 4, characterized in that: The manual locking member (12) comprises: A fixed block (121) is fixedly mounted on the inner wall of the lower portion of the control groove; A locking block (122), the locking block (122) moves horizontally along the inner wall of the lower portion of the control groove, and a locking rod (1221) is provided on a side of the locking block facing the turntable (111); A hinged rod (123) is rotatably arranged on the upper portion of the locking block (122), and when a limiting piece (1231) provided at one end of the hinged rod cooperates with the fixing block (121), the locking rod (1221) moves to an unlocking position separated from the locking hole (1111); A reset member (124) is an elastic member located between the fixing block (121) and the locking block (122); A contact rod (125) electrically connected to the electric push rod (134) is provided between the fixing block (121) and the locking block (122); When the locking rod (1221) is engaged with the locking hole (1111), the rotation of the rotating disk (111) is locked; when the locking rod (1221) is separated from the locking hole (1111), the rotation of the rotating disk (111) is unlocked.

6. A hoisting device suitable for limited space, characterized in that: The hoisting device is detachably mounted on the top of a limited space and comprises: outer frame (4); An inner frame (5) arranged inside the outer frame (4); A hoisting assembly (2) arranged symmetrically with respect to the outer frame (4) and the inner frame; A driving assembly (3) is connected to the outer frame (4) and the inner frame (5) and drives them to move at the top of the limited space; it is connected to the hoisting assembly (2) and drives it to lift the part to be hoisted; and A double locking assembly (1), the double locking assembly (1) as described in any one of claims 1 to 5.

7. The hoisting device suitable for limited space according to claim 6, characterized in that: The driving assembly (3) comprises: a first driving member (31) disposed between the outer frame (4) and the limited space, and driving the outer frame (4) to move along the length direction of the top of the limited space; a second driving member (32) connecting the outer frame (4) and the inner frame (5) and driving the inner frame (5) to move on the outer frame (4) along the width direction of the limited space; A traction drive component (33) connects the hoisting assembly (2) and the limited space, and drives the hoisting assembly (2) to lift the object to be hoisted.

8. The hoisting device suitable for limited space according to claim 7, characterized in that: The hoisting assembly (2) comprises: A fixed pulley assembly (21) symmetrically arranged on the inner frame (5); A movable pulley assembly (22) is located below the inner frame (5) to lift the component to be hoisted; and Traction ropes (23) are arranged in pairs, one end of each traction rope (23) is fixed to the inner side of the inner frame (5), and the other end is sequentially wound around the movable pulley group (22) and the fixed pulley group (21) and then connected to the traction drive member (33); Wherein, the fixed pulley group (21) comprises: A first fixed pulley (211) is arranged on the upper part of the inner frame (5); The second fixed pulley (212) is provided in one or more pairs, and each pair of the second fixed pulleys (212) is symmetrically arranged on the inner side of the inner frame (5).

9. The hoisting device suitable for limited space according to claim 8, characterized in that: The movable pulley assembly (22) comprises: A connector (221) is provided with a limiting rod (2211) on its upper portion, wherein the limiting rod (2211) moves to a position that matches the limiting hole at the lower portion of the inner frame (5) to limit the lifting height of the movable pulley group (22); a movable pulley (222), connected to the connector (221); A hanging rope (223) is placed on the lower part of the part to be hoisted to lift the part to be hoisted; A hook (224) is provided below the connector (221) and is connected to the part to be hoisted during hoisting; A reel with a limiting structure is provided in the connector (221), the connecting rope (2232) is wound on the reel, and its free end extends out of the connector (221) and is connected to the hanging rope (223) via a connecting ring (2231).

10. The hoisting device suitable for limited space according to claim 6, characterized in that: A limiting cavity (51) is provided in the middle of the inner frame (5); the double locking components (1) are symmetrically arranged inside the limiting cavity (51), and the rotating disk (111) of each double locking component (1) cooperates with a limiting ring (231) on the traction rope (23).

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