Lift cage for construction

Abstract

The invention relates to the technical field of lifters, and provides a lift cage for construction, which comprises a main body, and the main body is provided with an accommodating space and an inlet / outlet; the multiple limiting rods are arranged on the main body, and the multiple limiting rods are located on the two sides of the inlet and outlet correspondingly; the door body is arranged on the limiting rod in a lifting and sliding mode and used for blocking the containing space. The linear driving piece is arranged on the main body and used for driving the door body to ascend and descend. By means of the technical scheme, the technical problems that in the related technology / prior art, potential safety hazards exist in an elevator, in the humid or greasy environment, the efficiency of a chain or a belt is reduced, and the lifting position of a door body cannot be accurately controlled are solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of elevators, and more particularly, to a cage for a construction elevator. Background Art

[0002] A cage for a construction elevator is a device installed on a construction elevator for vertically transporting personnel and materials. During the construction process, the cage for a construction elevator plays an indispensable role. It undertakes the task of transporting building materials such as bricks, cement, steel, etc. to different construction floors, greatly improving the material handling efficiency. At the same time, it also provides a convenient vertical access way for construction workers, enabling them to quickly and safely reach their working positions, thus ensuring the smooth progress of construction. It is one of the core devices for vertical transportation in construction.

[0003] For the traditional cage door of a construction elevator, the transmission methods are mostly chain, belt or screw-nut. Chain and belt drives use their friction with the driving device to achieve the opening and closing of the cage door. However, during long-term use, the chain and belt are prone to loosening and elongation. This requires regular adjustment and maintenance, otherwise it will cause unstable transmission. Especially in a humid or oily environment, their transmission efficiency will drop significantly, and they cannot accurately control the lifting position of the door body. While the screw-nut drive can achieve a relatively precise linear motion. However, when the screw bears a large load, it is easy to bend and deform, which will not only affect the transmission accuracy but also shorten its service life. And the structure of the screw-nut drive is relatively complex, with a high manufacturing cost, and it is quite difficult to install and debug.

[0004] There is a need for a more efficient, safer and more adaptable construction elevator to solve the above problems. Summary of the Invention

[0005] To overcome the above defects, embodiments of the present disclosure provide a cage for a construction elevator, which solves the technical problems that the elevator in the related art / existing technology has potential safety hazards, and in a humid or oily environment, the transmission efficiency of the chain or belt drops and the lifting position of the door body cannot be accurately controlled.

[0006] According to one aspect, at least one embodiment of the present disclosure provides a cage for a construction elevator, including: A main body having an accommodation space and an inlet / outlet; A plurality of limiting rods, all of the plurality of limiting rods are arranged on the main body, and the plurality of limiting rods are respectively located on both sides of the inlet / outlet; A door body is slidably lifted on the limiting rods, and the door body is used to block the accommodation space; A linear drive is provided on the main body, and the linear drive is used to drive the door body to move up and down.

[0007] Optionally, the linear drive includes: A plurality of racks are provided on the door body along the moving direction of the door body, and adjacent racks are symmetrically arranged; A driving gear is rotatably provided on the main body, and the driving gear meshes with one of the racks; A driven gear is rotatably provided on the main body, the driven gear meshes with the driving gear, and the driven gear also meshes with another rack; A driver is provided on the main body, and the driving gear is provided on the power output end of the driver.

[0008] Optionally, it further includes: A first mounting seat is provided on the side wall of the door body; A runner is rotatably provided on the first mounting seat. The runner is located between the door body and the limiting rod, and the side of the runner away from the door body abuts against the side wall of the limiting rod.

[0009] Optionally, it further includes: A fixing ring is rotatably provided on the first mounting seat. The fixing ring is coaxially arranged with the runner, and the fixing ring has a plurality of slots arranged circumferentially; A hook is located inside the fixing ring. One end of the hook is hinged to the end face of the runner, and the other end of the hook is located near the slot. When the hook is subjected to centrifugal force, the hook is clamped in the slot; A first tension spring has one end provided on the end face of the runner and the other end provided on the hook. The first tension spring is used to provide a force for the hook to move away from the slot.

[0010] Optionally, it further includes: A second mounting seat is provided on the side wall of the door body, and the second mounting seat is located between the side wall of the door body and the limiting rod. The second mounting seat has a sliding groove; An oscillating arm has one end hinged to the second mounting seat, and the other end of the oscillating arm extends outside the second mounting seat; A limiting slider reciprocally slides in the sliding groove. The limiting slider has a guiding groove; A round rod is provided on the oscillating arm, and the side wall of the round rod abuts against the guiding groove. After the oscillating arm swings, the round rod slides along the guiding groove.

[0011] Optionally, the limiting slider includes: A rectangular block slides in the sliding groove; The ejector rod is arranged on the rectangular block; The friction plate is arranged at one end of the ejector rod away from the rectangular block. After the rectangular block slides along the sliding groove, the friction plate abuts or cancels abutting against the side wall of the limiting rod.

[0012] Optionally, it further includes: The second tension spring has one end arranged on the fixed ring and the other end arranged on the first mounting seat. After the hook is clamped in the card slot, the second tension spring is used to provide the force for the fixed ring to reset.

[0013] Optionally, it further includes: The end cover is arranged on the fixed ring; One end of the connecting rod is eccentrically hinged to the end cover, and the other end is hinged to the swing arm. After the hook is clamped in the card slot, the fixed ring drives the connecting rod to move.

[0014] Optionally, it further includes: The compression spring has one end arranged on the second mounting seat and the other end arranged on the swing arm. The compression spring is used to provide the force for the swing arm to reset.

[0015] Optionally, the side wall of the limiting rod has an anti-slip surface.

[0016] The beneficial effects of the embodiments of the present disclosure are as follows: In the present disclosure, the main body can be an existing elevator, cargo box or container and other box structures for storing goods. The main body has an accommodation space, which can be used to carry construction workers and materials. The inlet and outlet are opened on one side of the main body to facilitate the entry and exit of personnel and materials. Two limiting rods are symmetrically distributed on both sides of the inlet and outlet, playing a role in guiding and restricting the movement of the door body. The door body can slide smoothly up and down along the limiting rod and can completely block the accommodation space when closed. The linear drive is installed on the top of the main body and is mechanically connected to the door body to achieve power transmission. The linear drive is used to drive the door body straight up and down, and can completely open the inlet and outlet to facilitate the entry of personnel and goods into the accommodation space. When it is necessary to open or close the door body, the linear drive is powered on and starts to output linear power to push the door body to rise or fall along the direction of the limiting rod, completing the opening and closing actions of the door body to meet the needs of construction workers and materials to enter and exit the accommodation space. The setting of the limiting rod ensures the stability and accuracy of the door body's lifting, avoids the door body from shaking or shifting during the movement process, and improves the use safety. The linear drive directly drives the door body, compared with the traditional chain and belt drives, reduces the wear and maintenance costs of the transmission components, and the transmission is more stable and reliable. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the exemplary embodiments of the present disclosure and these drawings.

[0018] Figure 1 Schematic diagram of the overall structure of the elevator in an embodiment of the present disclosure; Figure 2 Schematic diagram of the overall structure of the elevator from another perspective in an embodiment of the present disclosure; Figure 3 For Figure 2 Partial enlarged view of location A in the embodiment of; Figure 4 For Figure 1 Partial enlarged view of location B in the embodiment of; Figure 5 Schematic diagram of the positional relationship between the rotating wheel and the swing arm in an embodiment of the present disclosure; Figure 6 Schematic diagram of the internal structure of the rotating wheel in an embodiment of the present disclosure; Figure 7 Schematic diagram of the swing arm and the limit slider in an embodiment of the present disclosure; Figure 8 Schematic diagram of the end cover in an embodiment of the present disclosure.

[0019] In the figure: 1. Main body, 101. Accommodating space, 102. Entrance and exit, 2. Limit rod, 3. Door body, 4. Linear driving member, 401. Rack, 402. Driving gear, 403. Driven gear, 404. Driver, 5. First mounting seat, 6. Rotating wheel, 7. Fixed ring, 701. Card slot, 8. Hook, 9. First tension spring, 10. Second mounting seat, 1001. Sliding groove, 11. Swing arm, 12. Limit slider, 1201. Guide groove, 121. Rectangular block, 122. Thumb rod, 123. Friction plate, 13. Round rod, 14. Second tension spring, 15. End cover, 16. Connecting rod, 17. Compression spring. Detailed implementation manners The following will further elaborate on the present disclosure in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than limiting the present disclosure.

[0020] To simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. Additionally, to simplify the drawings and facilitate understanding, for components with the same structure or function in some figures, only one of them is schematically shown, or only one of them is labeled. In this text, "one" not only means "only this one", but can also mean "more than one" situation, and "several" includes "two" and "more than two".

[0021] In this text, it should be noted that unless otherwise clearly specified and defined, the terms "install", "connect", and "join" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0022] In this disclosure, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature can include the direct contact between the first and second features, or can also include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is less than that of the second feature.

[0023] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this disclosure.

[0024] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0025] Such as Figures 1 to 4As shown, it shows a cage of a construction elevator in an embodiment of the present disclosure, including a main body 1, the main body 1 having an accommodation space 101 and an inlet / outlet 102; there are a plurality of limiting rods 2, and the plurality of limiting rods 2 are all arranged on the main body 1, and the plurality of limiting rods 2 are respectively located on both sides of the inlet / outlet 102; a door body 3 is arranged on the limiting rods 2 in a lifting and sliding manner, and the door body 3 is used to block the accommodation space 101; a linear driving member 4 is arranged on the main body 1, and the linear driving member 4 is used to drive the door body 3 to lift and lower.

[0026] For example, as Figure 1 shown, the main body 1 is a box body mechanism, and the main body 1 can be an existing box structure such as an elevator, a cargo box or a container for storing goods. The main body 1 has an accommodation space 101, which can be used to carry construction workers and materials. The inlet / outlet 102 is opened on one side of the main body 1 to facilitate the entry and exit of personnel and materials. Two limiting rods 2 are symmetrically distributed on both sides of the inlet / outlet 102, playing a role in guiding and restricting the movement of the door body 3. The door body 3 can slide up and down smoothly along the limiting rods 2 and can completely block the accommodation space 101 when closed. The linear driving member 4 is installed on the top of the main body 1 and is mechanically connected to the door body 3 to achieve power transmission. The linear driving member 4 is used to drive the door body 3 straight up and down, and can completely open the inlet / outlet 102 to facilitate personnel and goods to enter the accommodation space 101.

[0027] When it is necessary to open or close the door body 3, the linear driving member 4 is powered on and started, outputs linear power, and pushes the door body 3 to rise or fall along the direction of the limiting rods 2 to complete the opening and closing action of the door body 3 to meet the needs of construction workers and materials to enter and exit the accommodation space 101.

[0028] The setting of the limiting rods 2 ensures the stability and accuracy of the lifting of the door body 3, avoids the door body 3 from shaking or deviating during the movement process, and improves the use safety. The linear driving member 4 directly drives the door body 3. Compared with the traditional chain and belt drives, it reduces the wear and maintenance cost of the transmission components and the transmission is more stable and reliable.

[0029] In some examples, the linear driving member 4 includes a plurality of racks 401, the plurality of racks 401 are all arranged on the door body 3 along the moving direction of the door body 3, and the adjacent racks 401 are symmetrically arranged; a driving gear 402 is rotatably arranged on the main body 1, and the driving gear 402 meshes with one rack 401; a driven gear 403 is rotatably arranged on the main body 1, the driven gear 403 meshes with the driving gear 402, and the driven gear 403 also meshes with another rack 401; a driver 404 is arranged on the main body 1, and the driving gear 402 is arranged on the power output end of the driver 404.

[0030] For example, as Figures 2 - 3As shown, the length of the rack 401 is the same as the height of the door body 3. The rack 401 can be fixed to the door body 3 by screwing or welding. There are two racks 401, and the two racks 401 are fixedly arranged in parallel on both sides of the door body 3, and the adjacent two racks 401 are symmetrically distributed. The driving gear 402 and the driven gear 403 are installed in the gear seat on the main body 1, and the gear seat enables the gears to rotate stably and freely. The driver 404 is a stepper motor, and the motor output shaft is directly connected to the driving gear 402 to ensure effective power transmission.

[0031] After the driver 404 is started, the motor output shaft drives the driving gear 402 to rotate. The driving gear 402 meshes with one of the racks 401, converting the rotational motion into a linear motion of the door body 3, causing the door body 3 to rise or fall. At the same time, the driving gear 402 drives the driven gear 403 to rotate synchronously, and the driven gear 403 meshes with the other rack 401, further ensuring uniform force on both sides of the door body 3 and smooth movement. It can be understood that due to the meshing of the driving gear 402 and the driven gear 403, the rotation directions of the driving gear 402 and the driven gear 403 are opposite, which can ensure the synchronous movement of the two racks 401.

[0032] The rack and pinion 401 transmission method has high transmission efficiency and accuracy, and can accurately control the lifting position of the door body 3. The cooperation of the double gears and the double racks 401 enables the door body 3 to be evenly stressed during the lifting process, effectively preventing the door body 3 from tilting, improving the safety and stability of the elevator operation, and having a simpler structure and lower cost compared with the screw nut transmission.

[0033] In some examples, it further includes a first mounting seat 5, and the first mounting seat 5 is arranged on the side wall of the door body 3; the runner 6 is rotatably arranged on the first mounting seat 5, the runner 6 is located between the door body 3 and the limiting rod 2, and one side of the runner 6 away from the door body 3 abuts against the side wall of the limiting rod 2.

[0034] For example, as Figure 4 shown, the first mounting seat 5 is firmly fixed to the side wall of the door body 3 by bolts. The runner 6 is installed on the first mounting seat 5, and the central axis of the runner 6 is rotatably connected to the first mounting seat 5 to ensure flexible rotation around the axis. It should be noted that the circumferential surface of the runner 6 is a friction surface. During normal operation of the runner 6, there will be no slipping between the runner 6 and the limiting rod 2. When the door body 3 falls, after the runner 6 is locked, the rolling friction between the runner 6 and the side wall of the limiting rod 2 is converted into sliding friction. At this time, the runner 6 can receive a large resistance, and the falling speed of the door body 3 can be slowed down to ensure the safety of personnel.

[0035] During the normal lifting and lowering process of the door body 3, the rotating wheel 6 is in close contact with the side wall of the limit rod 2 and rolls. The linear motion of the door body 3 is converted into a relatively smooth movement through the rolling of the rotating wheel 6, reducing the frictional resistance between the door body 3 and the limit rod 2. When the door body 3 is working normally, the sliding friction is transformed into rolling friction, greatly reducing the frictional force, making the lifting and lowering of the door body 3 easier and smoother. This not only improves the operating efficiency of the door body 3, but also reduces the wear of the door body 3 and the limit rod 2, extending the service life of the equipment.

[0036] In some examples, it further includes a fixed ring 7. The fixed ring 7 is rotatably arranged on the first mounting seat 5. The fixed ring 7 is coaxially arranged with the rotating wheel 6. The fixed ring 7 has a number of circumferentially arranged card slots 701; the hook 8 is located inside the fixed ring 7. One end of the hook 8 is hinged to the end face of the rotating wheel 6, and the other end of the hook 8 is located near the card slot 701. After the hook 8 is subjected to centrifugal force, the hook 8 is clamped in the card slot 701; one end of the first tension spring 9 is arranged on the end face of the rotating wheel 6, and the other end is arranged on the hook 8. The first tension spring 9 is used to provide a force for the hook 8 to move away from the card slot 701.

[0037] For example, as Figures 5 - 6 shown, it should be noted that one end of the first mounting seat 5 close to the fixed ring 7 is an annular structure. The fixed ring 7 is concentrically arranged with this annular structure, and the fixed ring 7 is directly slidably mounted on the first mounting seat 5, enabling flexible rotation. A number of card slots 701 are evenly distributed on the circumferential surface of the inner wall of the fixed ring 7. The card slots 701 are composed of a number of L-shaped protrusions. One end of the hook 8 is hinged to the end face of the rotating wheel 6 through a pin shaft. The hinged end of the hook 8 is close to the center of the rotating wheel 6 and can swing around the pin shaft. The other end is hook-shaped and close to the card slot 701. One end of the first tension spring 9 is connected to the rotating wheel 6, and the other end is connected to the hook 8, and it is in a normal state under normal conditions.

[0038] When the rotating wheel 6 runs at a normal speed, the hook 8 moves away from the card slot 701 under the pulling force of the first tension spring 9. When the rotating speed of the rotating wheel 6 is too high, it is very likely that the door body 3 falls and makes a free fall motion at this time. The centrifugal force received by the hook 8 increases, overcoming the pulling force of the first tension spring 9, and is caught in the card slot 701. Under the limiting action of the fixed ring 7, the rotating wheel 6 stops rotating following the locking of the hook 8. At this time, the rolling friction between the rotating wheel 6 and the limit rod 2 becomes sliding friction.

[0039] This structure plays a speed limit protection role. When the lifting and lowering speed of the door body 3 abnormally accelerates, it can timely limit the rotation of the rotating wheel 6, prevent safety accidents caused by excessive speed, and improve the safety of the elevator operation.

[0040] In some examples, a second mounting seat 10 is further included. The second mounting seat 10 is disposed on the side wall of the door body 3, and the second mounting seat 10 is located between the side wall of the door body 3 and the limiting rod 2. The second mounting seat 10 has a sliding groove 1001; one end of the swing arm 11 is hinged to the second mounting seat 10, and the other end of the swing arm 11 extends to the outside of the second mounting seat 10; the limiting slider 12 is reciprocally slidably disposed in the sliding groove 1001, and the limiting slider 12 has a guiding groove 1201; a round rod 13 is disposed on the swing arm 11, and the side wall of the round rod 13 abuts against the guiding groove 1201. After the swing arm 11 swings, the round rod 13 slides along the guiding groove 1201.

[0041] For example, as Figure 7 shown, the second mounting seat 10 is fixed to the side wall of the door body 3, and the sliding groove 1001 is provided in the second mounting seat 10. One end of the swing arm 11 is hinged to the side wall of the second mounting seat 10 through a pin shaft, and the other end of the swing arm 11 extends out of the second mounting seat 10. The limiting slider 12 is composed of a rectangular block 121 and a guiding groove 1201 provided in the second mounting seat 10. The rectangular block 121 is in clearance fit with the sliding groove 1001 and can slide freely in the sliding groove 1001. The round rod 13 is fixed on the swing arm 11, located in the guiding groove 1201, and is in close contact with the side wall of the guiding groove 1201. It should be noted that the guiding groove 1201 is an inclined groove. After the round rod 13 moves along the guiding groove 1201, the rectangular block 121 will slide horizontally in the sliding groove 1001.

[0042] When the lifting speed of the door body 3 changes, the swing arm 11 will swing under the action of the connecting rod 16. During the downward swing of the swing arm 11, the round rod 13 is driven to slide in the guiding groove 1201, and then the limiting slider 12 slides in the sliding groove 1001. At this time, the limiting slider 12 will be pushed to one side of the sliding groove 1001, and one side of the limiting slider 12 will also extend out of the outside of the second mounting seat 10. After contacting the limiting rod 2, it is limited, thereby realizing the deceleration and braking of the door body 3. It can trigger the actions of the swing arm 11 and the rectangular block 121 when the change in the downward speed of the door body 3 is large, further enhancing the safety and stability of the operation of the door body of the elevator, and effectively avoiding safety problems caused by sudden speed changes.

[0043] In some examples, the limiting slider 12 includes a rectangular block 121, which is slidably disposed in the sliding groove 1001; a top rod 122 is disposed on the rectangular block 121; a friction plate 123 is disposed at the end of the top rod 122 away from the rectangular block 121. After the rectangular block 121 slides along the sliding groove 1001, the friction plate 123 abuts or cancels abutting against the side wall of the limiting rod 2.

[0044] For example, as Figure 7As shown, the rectangular block 121 fits tightly with the chute 1001 and can slide smoothly within the chute 1001. The ejector rod 122 is vertically fixed on the rectangular block 121, and the friction plate 123, made of materials such as rubber with a high coefficient of friction, is fixed at the end of the ejector rod 122.

[0045] When the limit slider 12 slides within the chute 1001, if the door body 3 moves abnormally, the limit slider 12 will push the ejector rod 122, causing the friction plate 123 to contact the side wall of the limit rod 2. With the further push of the ejector rod 122, the frictional force between the friction plate 123 and the limit rod 2 increases, hindering the movement of the door body 3. When the door body 3 moves abnormally, it can provide a braking effect in a timely manner, effectively preventing the door body 3 from causing safety accidents due to out-of-control, and ensuring the safety of construction workers and materials.

[0046] In some examples, it further includes a second tension spring 14. One end of the second tension spring 14 is arranged on the fixed ring 7, and the other end of the second tension spring 14 is arranged on the first mounting seat 5. After the hook 8 is snapped into the card slot 701, the second tension spring 14 is used to provide the force for the fixed ring 7 to reset.

[0047] For example, as Figure 5 shown, one end of the second tension spring 14 is connected to the fixed ring 7, and the other end is connected to the first mounting seat 5, and it is in a natural elongation state under normal conditions. When the hook 8 is snapped into the card slot 701, the fixed ring 7 will also rotate by a certain angle under the impact force of the hook 8. At this time, the fixed ring 7 will stretch the second tension spring 14, and the second spring 14 can ensure that the fixed ring 7 will not deflect at a large angle and at the same time provide a buffering effect for the hook 8. When the lifting speed of the door body 3 returns to normal, the staff manually disengages the hook 8 from the card slot 701, and the second tension spring 14 contracts, driving the fixed ring 7 to reset, preparing for the next speed limit protection. It ensures the automatic reset of the fixed ring 7 after the speed limit action, enables the speed limit protection device to work continuously and effectively, and improves the reliability of the equipment operation.

[0048] In some examples, it further includes an end cap 15. The end cap 15 is arranged on the fixed ring 7. One end of the connecting rod 16 is eccentrically hinged to the end cap 15, and the other end is hinged to the swing arm 11. After the hook 8 is snapped into the card slot 701, the fixed ring 7 drives the connecting rod 16 to move.

[0049] For example, as Figure 8 shown, the end cap 15 is fixed on the fixed ring 7 and rotates synchronously with the fixed ring 7. One end of the connecting rod 16 is eccentrically hinged to the end cap 15, and the other end is hinged to the swing arm 11 through a pin shaft.

[0050] Working process: When the hook 8 is engaged with the card slot 701 and the fixed ring 7 rotates by a certain angle, the end cover 15 is driven to rotate synchronously. The rotation of the end cover 15 pushes the swing arm 11 to swing through the eccentrically hinged connecting rod 16, and the swing of the swing arm 11 further triggers relevant braking or adjustment actions. Through mechanical linkage, the speed limit protection device is connected to the movement state adjustment mechanism of the door body 3, realizing the coordinated work among multiple safety protection mechanisms and improving the overall safety performance of the elevator.

[0051] In some examples, it further includes a compression spring 17. One end of the compression spring 17 is arranged on the second mounting seat 10, and the other end of the compression spring 17 is arranged on the swing arm 11. The compression spring 17 is used to provide the force for the swing arm 11 to return to its original position.

[0052] For example, as Figure 7 shown, one end of the compression spring 17 is connected to the second mounting seat 10, and the other end is connected to the swing arm 11, and it is in a compressed state under normal conditions. When the swing arm 11 swings, the compression spring 17 will provide a reverse restoring force to enable the swing arm 11 to quickly return to its original position. When the lifting speed of the door body 3 returns to normal, the swing arm 11 returns to the initial position under the action of the compression spring 17, preparing for the next change in the movement state of the door body 3. Ensuring that the swing arm 11 can respond in a timely manner to the change in the movement state of the door body 3 improves the sensitivity and reliability of the monitoring and adjustment mechanism, and guarantees the stability of the elevator operation.

[0053] In some examples, the side wall of the limit rod 2 has an anti-slip surface.

[0054] For example, the anti-slip surface is realized by machining rough textures on the side wall of the limit rod 2 or pasting anti-slip rubber and other materials. During the lifting and lowering process of the door body 3, the runner 6 contacts the anti-slip surface of the limit rod 2, and the friction force provided by the anti-slip surface enables the runner 6 to roll stably on the limit rod 2, avoiding slipping. It increases the friction force between the runner 6 and the limit rod 2, ensures the reliability and stability of the lifting and lowering of the door body 3, and can effectively prevent the runner 6 from slipping even in a humid or slightly oily environment, ensuring the normal operation of the door body 3.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not intended to limit. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. A construction elevator cage, characterized in that: include: A main body (1) having a receiving space (101) and an inlet and outlet (102); There are a plurality of limit rods (2), each of which is arranged on the main body (1), and each of which is located on both sides of the inlet and outlet (102); A door body (3) is arranged on the limiting rod (2) in a lifting and sliding manner, and the door body (3) is used to block the accommodating space (101); A linear drive member (4) is arranged on the main body (1), and the linear drive member (4) is used to drive the door body (3) to rise and fall; A rotating wheel (6) is rotatably arranged on the side wall of the door body (3), and a side of the rotating wheel (6) away from the door body (3) abuts against the side wall of the limiting rod (2); A fixing ring (7) is arranged on the side wall of the door body (3), the fixing ring (7) is coaxially arranged with the rotating wheel (6), and the fixing ring (7) has a plurality of slots (701) arranged along the circumferential direction; A hook (8) is located in the fixing ring (7), one end of the hook (8) is hinged to the end surface of the rotating wheel (6), and the other end of the hook (8) is located near the slot (701). After the hook (8) is subjected to centrifugal force, the hook (8) is engaged in the slot (701).

2. A construction elevator cage according to claim 1, characterized in that: The linear drive member (4) comprises: There are a plurality of racks (401), wherein the plurality of racks (401) are arranged on the door body (3) in a direction parallel to the movement direction of the door body (3), and adjacent racks (401) are symmetrically arranged; A driving gear (402) is rotatably disposed on the main body (1), and the driving gear (402) is meshed with one of the racks (401); A driven gear (403) is rotatably disposed on the main body (1), the driven gear (403) is meshed with the driving gear (402), and the driven gear (403) is also meshed with another rack (401); The driver (404) is arranged on the main body (1), and the driving gear (402) is arranged on the power output end of the driver (404).

3. A construction elevator cage according to claim 1, characterized in that: Also includes: The first mounting seat (5) is arranged on the side wall of the door body (3); the rotating wheel (6) is fixedly connected to the side wall of the door body (3) via the first mounting seat (5); and the fixing ring (7) is arranged on the first mounting seat (5).

4. A construction elevator cage according to claim 1, characterized in that: Also includes: a first tension spring (9), one end of which is arranged on the end surface of the rotating wheel (6) and the other end of which is arranged on the hook (8), the first tension spring (9) being used to provide a force for the hook (8) to move away from the slot (701); An end cover (15) is arranged on the fixing ring (7), and the end cover (15) is used to move synchronously with the fixing ring.

5. A construction elevator cage according to claim 4, characterized in that: Also includes: The second mounting seat (10) is arranged on the side wall of the door body (3), and the second mounting seat (10) is located between the side wall of the door body (3) and the limiting rod (2). A swing arm (11), one end of which is hinged to the second mounting seat (10), and the other end of which extends to the outside of the second mounting seat (10); A connecting rod (16), one end of which is eccentrically hinged on the end cover (15), and the other end of which is hinged to the swing arm (11); after the hook (8) is engaged with the slot (701), the end cover (15) drives the swing arm (11) to deflect via the connecting rod (16); A limiting slider (12) is arranged on the second mounting seat (10) for reciprocating sliding motion, the limiting slider (12) having a guide groove (1201), and the guide groove (1201) has an inclined surface; A round rod (13) is arranged on the swing arm (11), and a side wall of the round rod (13) abuts against the inclined surface. After the round rod (13) slides along the inclined surface, the round rod (13) is used to push the limiting slider (12) to slide towards a side close to the limiting rod (2).

6. A construction elevator cage according to claim 5, characterized in that: The second mounting seat (10) has a slide groove (1001), and the limiting slide block (12) comprises: A rectangular block (121) slidably disposed in the slide groove (1001); A top rod (122) is arranged on the rectangular block (121); The friction plate (123) is arranged at one end of the push rod (122) away from the rectangular block (121); after the rectangular block (121) slides along the slide groove (1001), the friction plate (123) abuts against or cancels abutment with the side wall of the limiting rod (2).

7. A construction elevator cage according to claim 4, characterized in that: The fixing ring (7) is rotatably connected to the inner wall of the first mounting seat (5), and further comprises: A second tension spring (14) has one end disposed on the fixing ring (7) and the other end disposed on the first mounting seat (5); after the hook (8) is engaged with the slot (701), the second tension spring (14) is used to provide a force for resetting the fixing ring (7).

8. A construction elevator cage according to claim 5, characterized in that: Also includes: A compression spring (17), one end of which is arranged on the second mounting seat (10) and the other end of which is arranged on the swing arm (11), the compression spring (17) being used to provide a force for resetting the swing arm (11).

9. A construction elevator cage according to claim 6, characterized in that: The side wall of the limiting rod (2) has an anti-slip surface, and the circumferential side wall of the rotating wheel (6) and the friction plate (123) both abut against the anti-slip surface.

Images