Maintenance elevator
By introducing anti-fall and positioning mechanisms into the maintenance elevator, the risk of trolley rushing into the elevator and the inconvenient docking problems are solved, and a safe and fast docking process is achieved.
Patent Information
- Application Number
- CN202422395629.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-30
AI Technical Summary
There is a risk of a car rushing into the elevator in the existing maintenance elevator and the problem of inconvenience between the car and the elevator. Especially in the chain drive system, there is a gap between the car descending and the high-altitude track due to the chain backlash.
The anti-fall mechanism and a positioning mechanism are adopted. The anti-fall mechanism includes a baffle and an elastic member. When the lifting mechanism is raised, the baffle rotates and lifts around the frame to avoid rushing into the car. The positioning mechanism ensures the accuracy of the butt of the lifting mechanism and the frame through the locking pin and the telescopic drive member.
It effectively avoids the risk of a car rushing into the elevator, ensures the fast and safe docking of the car and the elevator, and reduces damage during the docking process.
Smart Images
Figure CN223188854U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevators, in particular to a maintenance elevator. Background Art
[0002] Semiconductor factories require a maintenance elevator consisting of a frame and a lifting mechanism within the frame that drives a trolley up and down. The top of the frame features a window along the X axis. The lifting mechanism transports the trolley from the ground (the first entrance) to the sky, where it docks with the overhead track at the window. The trolley can also be transported from the overhead track to the ground for inspection and maintenance.
[0003] When the trolley on the overhead track needs to be transported to the ground, it waits on the overhead track outside the elevator. Once the lifting mechanism is in place, docking is completed, and the trolley is then transported to the ground. However, during this process, there is a risk that the trolley could crash into the elevator before the lifting mechanism is in place. Furthermore, because the maintenance elevator's lifting mechanism is chain-driven, the chain has backlash. As the lifting mechanism is in place and docking with the trolley, the trolley will drop due to gravity after entering the elevator, creating a drop from the overhead track and making docking difficult. Utility Model Content
[0004] Therefore, the technical problem to be solved by the present invention is to overcome the above-mentioned problems existing in the prior art.
[0005] In order to solve the above technical problems, the utility model provides a maintenance lift, comprising:
[0006] The frame includes a frame and a box structure formed by the frame; a window is provided on the top of the frame;
[0007] The lifting mechanism is located inside the box structure;
[0008] Two sets of anti-fall mechanisms are arranged at both ends of the top of the frame along the X direction, connected to the top of the frame; and located on the inner side of the window; the anti-fall mechanism includes at least one anti-fall component, the anti-fall component includes a baffle and an elastic member, the two ends of the baffle are respectively connected to the connecting end and the free end, the connecting end is rotatably connected to the frame, and the inner side of the free end is provided with a first protrusion protruding from the inner wall of the baffle; the two ends of the elastic member are respectively connected to the connecting end and the frame;
[0009] The positioning mechanism is connected to the top of the frame and is used to lock the frame with the lifting mechanism that is raised to the top of the frame.
[0010] In one embodiment of the present invention, the anti-falling mechanism includes an anti-falling component, and the anti-falling components of the two groups of anti-falling mechanisms are arranged diagonally.
[0011] In one embodiment of the present invention, a second protrusion protruding from the outer wall of the baffle is provided on the outer side of the free end of the baffle.
[0012] In one embodiment of the present invention, the anti-fall component further includes a fixed block, through which the end of the baffle is connected to the frame; the end of the baffle is rotatably connected to the fixed block via a rotating shaft, and the fixed block is fixedly connected to the frame.
[0013] In one embodiment of the present invention, the anti-fall component further includes a first position sensor and a second position sensor; the first position sensor is connected to the fixed block, and the second position sensor is fixedly connected to the frame.
[0014] In one embodiment of the present invention, the present application further includes a control unit, which is electrically connected to the first position sensor, the second position sensor, the lifting mechanism, and the trolley.
[0015] In one embodiment of the present invention, the positioning mechanism is divided into two groups, and the two groups of positioning mechanisms are arranged at both ends of the top of the frame along the X direction; the positioning mechanism includes at least one positioning component, and the positioning component includes a telescopic drive member, a locking positioning pin and a connecting block; the telescopic drive member is connected to the lifting mechanism, and the telescopic shaft of the telescopic drive member is connected to the locking positioning pin, and the telescopic drive member drives the locking positioning pin to extend and retract; the connecting block is connected to the frame, and the connecting block is provided with a locking hole matching the locking positioning pin, and the locking positioning pin extends through the locking hole.
[0016] In one embodiment of the present invention, the positioning component further includes a guide ring, which is connected to the lifting mechanism; the guide ring is telescopically matched with the locking positioning pin.
[0017] In one embodiment of the present invention, the positioning component also includes a sensor for identifying the extension and retraction of the locking positioning pin; the sensor includes an induction ring and two proximity switches, the induction ring is sleeved on the locking positioning pin, and the two proximity switches are respectively arranged on the lifting mechanism.
[0018] In one embodiment of the present invention, the maintenance lift includes a control unit, which is electrically connected to the induction ring, two proximity switches, the telescopic drive member, and the lifting mechanism.
[0019] The above technical solution of the utility model has the following advantages compared with the prior art:
[0020] In the maintenance elevator described in the present invention, when the lifting mechanism is raised, the lifting mechanism will abut the bottom of the first protrusion. As the lifting mechanism is raised, the baffle rotates around the frame, thereby lifting the baffle until the lifting mechanism is raised to a position where it docks with the overhead track. In the lifted state, the anti-fall component does not affect the lifting of the lifting mechanism or the docking of the lifting mechanism and the trolley. When the lifting mechanism is lowered, the baffle returns to its natural state under the action of the elastic member, at which point the baffle blocks the window. This prevents the waiting trolley from rushing into the interior of the elevator. In addition, when the lifting mechanism and the trolley are docked, the positioning mechanism locks the frame and the lifting mechanism, thereby facilitating quick and safe docking. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on the specific embodiments of the utility model in conjunction with the accompanying drawings, wherein:
[0022] Figure 1 This is a schematic diagram of the mechanism of a maintenance lift in a preferred embodiment of the present utility model;
[0023] Figure 2 yes Figure 1 A top view of the maintenance lift;
[0024] Figure 3 yes Figure 1 The anti-fall machine is in anti-fall state;
[0025] Figure 4 yes Figure 1 The anti-fall mechanism is in the state of being jacked up;
[0026] Figure 5 yes Figure 1 3D schematic diagram of the anti-fall mechanism;
[0027] Figure 6 yes Figure 1 Main view of the middle anti-fall mechanism;
[0028] Figure 7 yes Figure 1 Structural diagram of the positioning mechanism;
[0029] Description of the accompanying drawings: 100, frame; 110, frame; 120, window;
[0030] 200, lifting mechanism;
[0031] 300, anti-fall mechanism; 310, anti-fall component; 310a, first anti-fall component; 310b, second anti-fall component; 311, blocking piece; 312, elastic member; 3111, connecting end; 3112, free end; 313, first protrusion; 314, second protrusion; 315, fixing block; 317, first position sensor; 318, second position sensor;
[0032] 400, positioning mechanism; 410, positioning component; 410a, first positioning component; 410b, second positioning component; 411, telescopic drive member; 412, locking positioning pin; 413, connecting block; 4131, locking hole; 414, guide ring; 415, induction ring; 416, proximity switch. DETAILED DESCRIPTION
[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.
[0034] Reference Figures 1 to 7 As shown, the embodiment of the present invention provides a maintenance lift, comprising:
[0035] The frame 100 includes a frame 110, which is surrounded by a box structure. A window 120 is provided on the top of the frame 100.
[0036] The lifting mechanism 200 is located inside the box structure;
[0037] Two sets of anti-falling mechanisms 300 are arranged at both ends of the top of the frame 100 along the X direction and are located inside the window 120. The anti-falling mechanism 300 includes at least one anti-falling component 310, which includes a baffle 311 and an elastic member 312. The baffle 311 has a connecting end 3111 and a free end 3112 at its ends. The connecting end 3111 is rotatably connected to the frame 100, and the inner side of the free end 3112 is provided with a first protrusion 313 protruding from the inner wall of the baffle 311. The elastic member 312 has two ends connected to the connecting end 3111 and the frame 100 respectively.
[0038] The positioning mechanism 400 is connected to the top of the frame 100 . The positioning mechanism 400 is used to lock the frame 100 with the lifting mechanism 200 that is raised to the top of the frame 100 .
[0039] Specifically, when the lifting mechanism 200 is raised, it abuts the bottom of the first protrusion 313. As the lifting mechanism 200 rises, the baffle 311 rotates around the frame 100, thereby lifting the baffle 311 until the lifting mechanism 200 is raised to a position where it docks with the overhead track. In the lifted state, the anti-fall component 310 does not affect the lifting of the lifting mechanism 200 or the docking of the lifting mechanism 200 with the trolley. When the lifting mechanism 200 is lowered, the baffle 311 returns to its natural state under the action of the elastic member 312, at which point the baffle 311 blocks the window 120. This prevents the waiting trolley from rushing into the interior of the elevator. In addition, when the lifting mechanism 200 and the trolley dock, the positioning mechanism 400 locks the frame 100 and the lifting mechanism 200, facilitating quick and safe docking.
[0040] Furthermore, the anti-falling mechanism 300 includes an anti-falling component 310. The two sets of anti-falling components 310 of the anti-falling mechanism 300 are respectively a first anti-falling component 310a and a second anti-falling component 310b. The first anti-falling component 310a and the second anti-falling component 310b are arranged diagonally. This is more stable and reliable.
[0041] Furthermore, a second protrusion 314 is provided on the outer side of the free end 3112 of the baffle 311, protruding from the outer wall of the baffle 311. The second protrusion 314 is made of a soft material, such as rubber or plastic. Similarly, the first protrusion 313 is made of a soft material, such as rubber or plastic. This allows a waiting vehicle to contact the second protrusion 314 first, cushioning the vehicle and minimizing damage.
[0042] Furthermore, the anti-fall component 310 also includes a fixed block 315, through which the end of the baffle 311 is connected to the frame 100. The end of the baffle 311 is rotatably connected to the fixed block 315 via a rotating shaft, and the fixed block 315 is fixedly connected to the frame 100. The anti-fall component 310 also includes a first position sensor 317 and a second position sensor 318. The first position sensor 317 is connected to the fixed block 315, and the second position sensor 318 is fixedly connected to the frame 100. The first position sensor 317 is used to detect whether the baffle 311 has fallen into place, and the second position sensor 318 is used to detect whether the baffle 311 has been lifted into place.
[0043] Furthermore, the present application also includes a control unit, which is electrically connected to the first position sensor 317, the second position sensor 318, the lifting mechanism 200, and the trolley. The first position sensor 317 is used to monitor whether the baffle 311 is reset to the anti-fall state. The second position sensor 318 is used to monitor whether the baffle 311 is lifted by the lifting mechanism 200. The first position sensor 317 and the second position sensor 318 are electrically connected to the control unit respectively. The first position sensor 317 and the second position sensor 318 transmit the identified information to the control unit, and the control unit controls the lifting mechanism 200 and the trolley according to the received information, thereby realizing linkage.
[0044] Furthermore, the positioning mechanism 400 comprises two groups, each of which is disposed at both ends of the top of the frame 100 along the X-direction. The positioning mechanism 400 includes at least one positioning component 410. When the positioning mechanism 400 includes one positioning component 410, the positioning components 410 of the two groups of positioning mechanisms 400 are respectively a first positioning component 410a and a second positioning component 410b, with the first positioning component 410a and the second positioning component 410b being arranged diagonally. Thus, the first anti-falling component 310a, the second anti-falling component 310b, and the first positioning component 410a and the second positioning component 410b are respectively located at the four corners of the lifting mechanism. The positioning component 410 includes a telescopic drive member 411, a locking positioning pin 412, and a connecting block 413. The telescopic drive member 411 is connected to the lifting mechanism 200, and the telescopic shaft of the telescopic drive member 411 is connected to the locking positioning pin 412. The telescopic drive member 411 drives the locking positioning pin 412 to extend and retract. The connecting block 413 is connected to the frame 100. The connecting block 413 is provided with a locking hole 4131 that matches the locking positioning pin 412. The locking positioning pin 412 extends and passes through the locking hole 4131. In some embodiments, the telescopic drive member 411 is a telescopic cylinder. For example, an electric telescopic cylinder. When the lifting mechanism 200 is raised into position, the telescopic drive member 411 drives the locking positioning pin 412 to extend and retract and insert into the locking hole 4131, thereby locking the lifting mechanism 200 to the frame 100 and preventing the lifting mechanism 200 from misaligning with the overhead track and affecting docking.
[0045] Furthermore, the positioning member 410 further includes a guide ring 414, which is connected to the lifting mechanism 200 and is telescopically matched with the locking positioning pin 412. In this way, when the telescopic cylinder drives the locking positioning pin 412 to extend or retract, it plays a guiding role.
[0046] Furthermore, the positioning component 410 also includes a sensor for detecting whether the locking positioning pin 412 is extended or retracted. The sensor includes an induction ring 415 and two proximity switches 416. The induction ring 415 is mounted on the locking positioning pin 412, and the two proximity switches 416 are respectively installed on the lifting mechanism 200. The induction ring 415 and the two proximity switches 416 sense each other and are used to detect whether the locking positioning pin 412 is extended or retracted.
[0047] Furthermore, the maintenance elevator includes a control unit that is electrically connected to the induction ring 415, two proximity switches 416, the telescopic drive 411, and the lifting mechanism 200. This embodiment realizes the linkage of the induction ring 415, two proximity switches 416, the telescopic drive 411, and the lifting mechanism 200.
[0048] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.
Claims
1. A maintenance lift, characterized in that: include: The frame comprises a frame, and the frame is surrounded by a box structure; a window is provided on the top of the frame; A lifting mechanism is located inside the box structure; Two sets of anti-falling mechanisms are arranged at both ends of the top of the frame along the X direction, connected to the top of the frame; and located on the inner side of the window; the anti-falling mechanism includes at least one anti-falling component, and the anti-falling component includes a baffle and an elastic member, the two ends of the baffle are respectively a connecting end and a free end, the connecting end is rotatably connected to the frame, and the inner side of the free end is provided with a first protrusion protruding from the inner wall of the baffle; the two ends of the elastic member are respectively connected to the connecting end and the frame; A positioning mechanism is connected to the top of the frame, and is used to lock the frame with a lifting mechanism that is raised to the top of the frame.
2. The maintenance lift according to claim 1, characterized in that: The anti-falling mechanism includes an anti-falling component, and the anti-falling components of the two groups of anti-falling mechanisms are arranged diagonally.
3. The maintenance lift according to claim 1, characterized in that: A second protrusion protruding from the outer wall of the baffle is provided on the outer side of the free end of the baffle.
4. The maintenance lift according to claim 1, characterized in that: The anti-falling component further includes a fixing block, through which the end of the baffle is connected to the frame; the end of the baffle is rotatably connected to the fixing block, and the fixing block is fixedly connected to the frame.
5. The maintenance lift according to claim 4, characterized in that: The anti-fall component further includes a first position sensor and a second position sensor; the first position sensor is connected to the fixing block, and the second position sensor is fixedly connected to the frame.
6. The maintenance lift according to claim 5, characterized in that: The device further includes a control unit electrically connected to the first position sensor, the second position sensor, the lifting mechanism, and the trolley.
7. The maintenance lift according to claim 1, characterized in that: The positioning mechanism consists of two groups, and the two groups of positioning mechanisms are arranged at both ends of the top of the frame along the X direction; the positioning mechanism includes at least one positioning component, and the positioning component includes a telescopic drive member, a locking positioning pin and a connecting block; the telescopic drive member is connected to the lifting mechanism, and the telescopic shaft of the telescopic drive member is connected to the locking positioning pin, and the telescopic drive member drives the locking positioning pin to extend and retract; the connecting block is connected to the frame, and the connecting block is provided with a locking hole matching the locking positioning pin, and the locking positioning pin extends through the locking hole.
8. The maintenance lift according to claim 7, characterized in that: The positioning component further includes a guide ring, which is connected to the lifting mechanism; the guide ring is telescopically matched with the locking positioning pin.
9. The maintenance lift according to claim 8, characterized in that: The positioning component also includes a sensor for identifying the extension and retraction of the locking positioning pin; the sensor includes an induction ring and two proximity switches, the induction ring is sleeved on the locking positioning pin, and the two proximity switches are respectively arranged on the lifting mechanism.
10. The maintenance lift according to claim 9, characterized in that: The maintenance elevator includes a control unit: the control unit is electrically connected to the induction ring, the two proximity switches, the telescopic driving member and the lifting mechanism.