CN111403219A - Travel switch for elevator - Google Patents
Travel switch for elevator Download PDFInfo
- Publication number
- CN111403219A CN111403219A CN202010290369.6A CN202010290369A CN111403219A CN 111403219 A CN111403219 A CN 111403219A CN 202010290369 A CN202010290369 A CN 202010290369A CN 111403219 A CN111403219 A CN 111403219A
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- CN
- China
- Prior art keywords
- frame
- travel switch
- column
- elevator
- sides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/46—Adaptations of switches or switchgear
- B66B1/50—Adaptations of switches or switchgear with operating or control mechanisms mounted in the car or cage or in the lift well or hoistway
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/04—Cases; Covers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/22—Operating parts, e.g. handle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/22—Operating parts, e.g. handle
- H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
- H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/36—Driving mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
The invention relates to a travel switch for an elevator, which comprises a placement frame, sliding groove columns and buckling columns, wherein the middle part of the interior of the placement frame is connected with a protection frame, the middle part of the protection frame is provided with the sliding groove columns, two sides of each sliding groove column are provided with limiting frames, the interior of each limiting frame is connected with a positioning bolt, the middle part of the top end of the placement frame is provided with the buckling columns, two sides of each buckling column are provided with vertical bolt columns, the upper side and the lower side of each protection frame are provided with clamping bolts, and the middle part of the bottom end of the placement frame is provided with a connecting column. The invention has the beneficial effects that: the effectual bolt post buckle that will have the guide bolt hole can encapsulate the packaging board between the clamping frame between the packaging board, can reach gap confined effect to the shelf left side for packaging board screw thread buckle is between elevator travel switch's equipment gap, and the prevention dust gets into elevator travel switch's inside, improves elevator travel switch's result of use, avoids taking place elevator travel switch trouble.
Description
Technical Field
The invention relates to the technical field of travel switches, in particular to a travel switch for an elevator.
Background
The limit switch is also called a travel switch, and can be installed on relatively static objects (such as a fixed frame, a door frame and the like, called static objects for short) or moving objects (such as a travelling crane, a door and the like, called animals for short), when the animals approach the static objects, a connecting rod of the switch drives a contact of the switch to cause the disconnection of a closed contact or the closing of an opened contact, and the change of the opening and closing state of the switch contact controls a circuit and a motor, but the travel switch for the elevator has certain installation defects to influence the use of the travel switch for the elevator, so the improvement of a protection structure of the travel switch for the elevator is needed.
Travel switch in the market is difficult to carry out both sides reinforcement installation to elevator travel switch, is unfavorable for elevator travel switch butt joint installation, and the inside gap of elevator travel switch gets into the dust foreign matter easily, influences elevator travel switch's result of use, and when elevator travel switch carried out equipment arrangement, the whole deviation of adjusting installation was big, the serious problem of surface buckle wearing and tearing.
Disclosure of Invention
The invention aims to provide a travel switch for an elevator, which aims to solve the problems that the travel switch in the market proposed in the background technology is difficult to be installed on two sides in a reinforcing way, is not beneficial to butt joint of the elevator travel switch, dust and foreign matters are easy to enter into an inner gap of the elevator travel switch, the use effect of the elevator travel switch is influenced, and when the elevator travel switch is used for equipment arrangement, the integral adjustment installation deviation is large and the surface fastener is seriously abraded.
In order to achieve the purpose, the invention provides the following technical scheme: a travel switch for an elevator comprises a placement frame, sliding groove columns and buckling columns, wherein the middle part of the interior of the placement frame is connected with a protective frame, the middle part of the protective frame is provided with the sliding groove columns, two sides of each sliding groove column are provided with limiting frames, the interior of each limiting frame is connected with a positioning bolt, the middle part of the top end of the placement frame is provided with the buckling columns, two sides of each buckling column are provided with vertical bolt columns, the upper side and the lower side of the protective frame are provided with clamping bolts, the middle part of the bottom end of the placement frame is provided with a connecting column, two sides of the top end of the connecting column are provided with a clamping frame, the right surface of the placement frame is provided with an anti-abrasion frame, the upper side and the lower side of the rear end of the placement frame are provided with cross rods, two sides of each cross rod are connected with backing plates, equipment installation frames are installed on the inner sides of the backing plates, the packaging board is internally connected with a bolt column, and guide bolt holes are formed in two sides of the bolt column.
Preferably, be fixed connection between protection frame and the spout post, and protection frame passes through the spout post and constitutes sliding structure with the spacing.
Preferably, the placing frame is in threaded connection with the connecting column, and the interlayer frame is movably connected with the connecting column.
Preferably, the placing frame is fixedly connected with the cross rod, and the cross rod is connected with the backing plate in a welding mode.
Preferably, the inner wall of the plug is tightly attached to the outer wall of the packaging plate, and the plug forms a clamping structure through the packaging plate and the clamping frame.
Preferably, reset springs are distributed in the interlayer frame, grooves are formed in the inner sides of the reset springs, and pressure resisting plates are arranged at the bottom ends of the grooves.
Preferably, be fixed connection between intermediate layer frame and the reset spring, and intermediate layer frame passes through reset spring and constitutes elastic construction with the resistance to compression board.
Preferably, the equipment mounting frame is internally provided with a placing hole, one side of the equipment mounting frame is connected with a protection plate, and one side of the protection plate is provided with a hinge frame.
Preferably, the reinforced plate is in threaded connection with the hinge frame, and the equipment mounting frame forms a rotating structure through the reinforced plate and the hinge frame.
Compared with the prior art, the invention has the following beneficial effects:
1. the protective frame of the invention forms a sliding structure through the chute column and the limiting frame, a user can manually push the limiting frame between the chute column and the protective frame, and the sliding limiting frame can be extended on two sides of the fixedly connected protective frame and the placing frame in a sliding way, thus being beneficial to reinforcing and mounting two sides of the elevator travel switch and being beneficial to butt joint and mounting of the elevator travel switch.
2. The placing frame is fixedly connected with the cross rod, the cross rod is connected with the backing plate in a welding mode, the cross rod and the backing plate which are connected in a welding mode are effectively installed at the rear end of the placing frame in a protection mode, and the anti-collision performance of the elevator travel switch is enhanced.
3. According to the invention, the bolt column with the guide bolt hole is effectively clamped between the packaging plates through the packaging plate and the clamping frame to form a clamping structure, the packaging plate can be packaged between the clamping frames, the left side of the mounting frame can achieve the effect of gap sealing, the packaging plate is clamped between equipment gaps of the elevator travel switch in a threaded manner, dust is prevented from entering the interior of the elevator travel switch, the use effect of the elevator travel switch is improved, and the elevator travel switch is prevented from being out of order.
4. According to the invention, the interlayer frame forms an elastic structure through the reset spring and the compression-resistant plates, when the interlayer frame is extruded from the outside, the elastic reset spring can be extruded between the grooves, so that the compression-resistant plates are elastically clamped on the connecting column and two sides of the bottom end of the placement frame by extrusion, the extruded compression-resistant plates and the reset spring can be protected on two sides of the bottom end of the placement frame, and the effect of preventing the clamping abrasion on the surface of the elevator travel switch can be achieved.
5. According to the equipment mounting frame, the protective plate and the hinge frame form a rotating structure, a user can manually push the fixedly connected equipment mounting frame and the protective plate to drive the hinge frame to rotate along the installation frame, the equipment mounting frame and the protective plate are effectively rotated and unfolded at the rear end of the installation frame, the rear end of the elevator travel switch is reinforced and buckled, the elevator travel switch is favorably adjusted in the installation position, and the integral installation and adjustment deviation is prevented.
Drawings
Fig. 1 is a schematic front view of a travel switch for an elevator according to the present invention;
fig. 2 is a rear view structural schematic diagram of a travel switch for an elevator according to the present invention;
fig. 3 is a left side view schematic diagram of a travel switch for an elevator according to the present invention;
fig. 4 is an enlarged structural schematic diagram of a position a in fig. 1 of a travel switch for an elevator according to the present invention;
fig. 5 is an enlarged schematic structural diagram of a travel switch for an elevator at a position B in fig. 2.
In the figure: 1. a placement frame; 2. a protective frame; 3. a chute column; 4. a limiting frame; 5. positioning bolts; 6. erecting a bolt column; 7. a buckling column; 8. a clamping bolt; 9. an anti-abrasion frame; 10. a sandwich frame; 11. connecting columns; 12. a cross bar; 13. a base plate; 14. an equipment mounting rack; 15. a guide bolt hole; 16. a stud; 17. a clamping frame; 18. a package board; 19. a return spring; 20. a groove; 21. a pressure resistant plate; 22. a hinge frame; 23. adding a guard plate; 24. and placing the hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1-5, the present invention provides a technical solution: a travel switch for an elevator comprises a placement frame 1, a protective frame 2, sliding groove columns 3, a limiting frame 4, a positioning bolt 5, a vertical bolt column 6, a buckling column 7, a clamping bolt 8, an anti-abrasion frame 9, an interlayer frame 10, a connecting column 11, a cross rod 12, a base plate 13, an equipment mounting frame 14, a guide bolt hole 15, a bolt column 16, a clamping frame 17, a packaging plate 18, a reset spring 19, a groove 20, a pressure resisting plate 21, a hinge frame 22, a protection plate 23 and a placement hole 24, wherein the protective frame 2 is connected to the middle inside of the placement frame 1, the sliding groove columns 3 are arranged in the middle of the protective frame 2, the limiting frames 4 are arranged on two sides of the sliding groove columns 3, the positioning bolt 5 is connected to the inside of the limiting frame 4, the protective frame 2 is fixedly connected with the sliding groove columns 3, the protective frame 2 forms a sliding structure with the limiting frames 4 through the sliding groove columns 3, the protective frame 2 is fixedly connected between the placement frame 1, so that the sliding groove columns 3 are fixedly connected between the, the inner wall of the limiting frame 4 can be tightly attached between the sliding groove columns 3, a user can manually push the limiting frame 4 between the sliding groove columns 3 and the protective frame 2, the sliding limiting frame 4 can be extended to two sides of the fixedly connected protective frame 2 and the placing frame 1 in a sliding manner, the elevator travel switch is favorably reinforced and installed on two sides, the elevator travel switch is favorably installed in a butt joint mode, a buckling column 7 is arranged in the middle of the top end of the placing frame 1, vertical bolt columns 6 are arranged on two sides of the buckling column 7, clamping bolts 8 are arranged on the upper side and the lower side of the protective frame 2, a connecting column 11 is arranged in the middle of the bottom end of the placing frame 1, clamping frames 10 are arranged on two sides of the top end of the connecting column 11, an anti-abrasion frame 9 is arranged on the right surface of the placing frame 1, cross rods 12 are arranged on the upper side and the lower side of the rear end of the placing frame 1, backing plates 13, a clamping frame 17 is arranged on the left surface of the placing frame 1, packaging plates 18 are arranged on two sides of the clamping frame 17, a stud 16 is connected inside the packaging plates 18, and guide stud holes 15 are formed in two sides of the stud 16;
for threaded connection between place frame 1 and the spliced pole 11, and be swing joint between intermediate layer frame 10 and the spliced pole 11, through with spliced pole 11 threaded connection between place frame 1, can install the protection of intermediate layer frame 10 in spliced pole 11 and place frame 1's bottom both sides, can consolidate the perpendicular bolt post 6 and the centre gripping bolt 8 of the same structure and settle the top at place frame 1 for the outside at place frame 1 is connected in the protection of abrasionproof damage frame 9.
The placing frame 1 is fixedly connected with the cross rods 12, the cross rods 12 are welded with the backing plates 13, the backing plates 13 are welded between the placing frame 1 through the cross rods 12, the backing plates 13 are welded between the cross rods 12, the cross rods 12 and the backing plates 13 which are welded are effectively installed at the rear end of the placing frame 1 in a protection mode, and the anti-collision performance of the elevator travel switch is enhanced;
the inner wall of the stud 16 is tightly attached to the outer wall of the packaging plate 18, the stud 16 forms a buckle structure with the clamping frame 17 through the packaging plate 18, a user manually twists the stud 16 between the packaging plates 18, threads of the stud 16 can penetrate between the outer walls of the packaging plates 18, the stud 16 with the guide bolt hole 15 is effectively buckled between the packaging plates 18, the packaging plates 18 can be packaged between the clamping frames 17, the left side of the mounting frame 1 can achieve the effect of gap closing, the packaging plates 18 are buckled between equipment gaps of the elevator travel switch in a threaded mode, dust is prevented from entering the interior of the elevator travel switch, the using effect of the elevator travel switch is improved, and the elevator travel switch is prevented from being out of fault;
reset springs 19 are distributed in the interlayer frame 10, grooves 20 are formed in the inner sides of the reset springs 19, pressure resisting plates 21 are arranged at the bottom ends of the grooves 20, the interlayer frame 10 is fixedly connected with the reset springs 19, the interlayer frame 10 and the pressure resisting plates 21 form an elastic structure through the reset springs 19 and the pressure resisting plates 21, the grooves 20 can be formed between the reset springs 19 and the interlayer frame 10 by fixedly connecting the reset springs 19 between the interlayer frame 10 in a distributed mode, when the interlayer frame 10 is extruded from the outside, the elastic reset springs 19 can be extruded between the grooves 20, the pressure resisting plates 21 are elastically clamped on two sides of the bottom ends of the connecting columns 11 and the placement frame 1 in an extruded mode, the extruded pressure resisting plates 21 and the reset springs 19 can be protected on two sides of the bottom end of the placement frame 1, and the effect of preventing clamping abrasion on the surface of an elevator travel switch can be achieved;
the equipment mounting frame 14 is internally provided with a mounting hole 24, one side of the equipment mounting frame 14 is connected with a protection plate 23, one side of the protection plate 23 is provided with a hinge frame 22, the protection plate 23 is in threaded connection with the hinge frame 22, the equipment mounting frame 14 forms a rotary structure with the hinge frame 22 through the protection plate 23, the protection plate 23 can be fixedly connected between the equipment mounting frame 14 by arranging the mounting hole 24 between the equipment mounting frame 14, the movable hinge frame 22 can be in threaded connection between the protection plate 23, a user can manually push the fixedly connected equipment mounting frame 14 and the protection plate 23 to drive the hinge frame 22 to rotate along the mounting frame 1, the equipment mounting frame 14 and the protection plate 23 can be effectively and rotatably unfolded at the rear end of the mounting frame 1, the rear-end reinforcing and mounting buckle of an elevator travel switch can be facilitated, and the elevator travel switch can be used for carrying out equipment mounting position adjustment, preventing the whole installation and adjustment deviation.
The working principle of the embodiment is as follows: the travel switch for the elevator is fixedly connected between the placement frames 1 through the cross rods 12, the backing plates 13 are connected between the cross rods 12 in a welding mode, the cross rods 12 and the backing plates 13 which are connected in a welding mode are effectively installed at the rear ends of the placement frames 1 in a protection mode, the anti-collision performance of the elevator travel switch is enhanced, the reset springs 19 are fixedly connected between the interlayer frames 10 in a distributed mode, the grooves 20 can be formed between the reset springs 19 and the interlayer frames 10 in a placement mode, when external extrusion is received between the interlayer frames 10, the reset springs 19 with elasticity can be extruded between the grooves 20, the pressure resisting plates 21 are elastically buckled on two sides of the bottom ends of the connecting columns 11 and the placement frames 1 in an extrusion mode, the extruded pressure resisting plates 21 and the reset springs 19 can be protected on two sides of the bottom ends of the placement frames 1, the effect of preventing buckling abrasion can be achieved on the surface of the elevator travel switch, meanwhile, the, the chute column 3 is fixedly connected between the protection frames 2, the inner wall of the limiting frame 4 can be tightly attached between the chute columns 3, a user can manually push the limiting frame 4 between the chute columns 3 and the protection frames 2, the sliding limiting frame 4 can be extended to two sides of the fixedly connected protection frames 2 and the placing frame 1 in a sliding mode, two-side reinforcing installation of an elevator travel switch is facilitated, butt joint installation of the elevator travel switch is facilitated, finally, the placing hole 24 is arranged between the equipment installation frames 14 in a technical mode, the protecting plate 23 can be fixedly connected between the equipment installation frames 14, the movable hinge frame 22 can be connected between the protecting plates 23 in a threaded mode, the user can manually push the fixedly connected equipment installation frames 14 and the protecting plates 23 to drive the hinge frame 22 to rotate along the placing frames 1, and the equipment installation frames 14 and the protecting plates 23 can be effectively and rotatably unfolded at the rear end of the placing frame 1, the rear end reinforcing and mounting buckle of the elevator travel switch is facilitated, the equipment mounting position adjustment of the elevator travel switch is facilitated, the whole mounting adjustment deviation is prevented, a user manually screws the studs 16 between the packaging plates 18, threads of the studs 16 can penetrate between the outer walls of the packaging plates 18, the studs 16 with the guide stud holes 15 are effectively clamped between the packaging plates 18, the packaging plates 18 can be packaged between the clamping frames 17, the gap sealing effect can be achieved on the left side of the mounting frame 1, the packaging plates 18 are clamped between equipment gaps of the elevator travel switch in a threaded mode, dust is prevented from entering the interior of the elevator travel switch, the using effect of the elevator travel switch is improved, the elevator travel switch is prevented from being in failure, the interlayer frame 10 can be mounted on two sides of the bottom ends of the connecting column 11 and the mounting frame 1 in a protective mode by connecting the connecting column 11 in a threaded mode between the mounting frames 1, the vertical bolt column 6 and the clamping bolt 8 with the same structure can be arranged at the top end of the placing frame 1 in a reinforcing way, so that the anti-abrasion frame 9 is connected outside the placing frame 1 in a protective way.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a travel switch for elevator, includes place frame (1), spout post (3) and buckle post (7), its characterized in that: the anti-abrasion safety guard is characterized in that a protective frame (2) is connected to the middle inside the placement frame (1), a sliding groove column (3) is arranged in the middle of the protective frame (2), limiting frames (4) are arranged on two sides of the sliding groove column (3), a positioning bolt (5) is connected to the inside of each limiting frame (4), a buckling column (7) is arranged in the middle of the top end of the placement frame (1), vertical bolt columns (6) are arranged on two sides of the buckling column (7), clamping bolts (8) are arranged on the upper side and the lower side of the protective frame (2), a connecting column (11) is arranged in the middle of the bottom end of the placement frame (1), clamping frames (10) are arranged on two sides of the top end of the connecting column (11), an anti-abrasion frame (9) is arranged on the right surface of the placement frame (1), a cross rod (12) is arranged on the upper side and the lower side of the rear end of the placement frame (, the equipment mounting frame (14) is installed to the inboard of backing plate (13), the left surface of arrangement frame (1) is provided with block frame (17), and the both sides of block frame (17) settle and have encapsulation board (18), the internal connection of encapsulation board (18) has embolus (16), pilot hole (15) have been seted up to the both sides of embolus (16).
2. The travel switch for an elevator according to claim 1, wherein: the protective frame (2) is fixedly connected with the sliding groove column (3), and the protective frame (2) forms a sliding structure with the limiting frame (4) through the sliding groove column (3).
3. The travel switch for an elevator according to claim 1, wherein: the placing frame (1) is in threaded connection with the connecting column (11), and the interlayer frame (10) is movably connected with the connecting column (11).
4. The travel switch for an elevator according to claim 1, wherein: the placing frame (1) is fixedly connected with the cross rod (12), and the cross rod (12) is welded with the backing plate (13).
5. The travel switch for an elevator according to claim 1, wherein: the inner wall of the bolt column (16) is tightly attached to the outer wall of the packaging plate (18), and the bolt column (16) and the clamping frame (17) form a clamping structure through the packaging plate (18).
6. The travel switch for an elevator according to claim 1, wherein: reset springs (19) are distributed in the interlayer frame (10), grooves (20) are formed in the inner sides of the reset springs (19), and pressure resisting plates (21) are arranged at the bottom ends of the grooves (20).
7. The travel switch for an elevator according to claim 6, wherein: the interlayer frame (10) is fixedly connected with the return spring (19), and the interlayer frame (10) and the compression-resistant plate (21) form an elastic structure through the return spring (19).
8. The travel switch for an elevator according to claim 1, wherein: the mounting structure is characterized in that a mounting hole (24) is formed in the equipment mounting frame (14), a protection plate (23) is connected to one side of the equipment mounting frame (14), and a hinge frame (22) is arranged on one side of the protection plate (23).
9. The travel switch for an elevator according to claim 8, wherein; the protective plate (23) is in threaded connection with the hinge frame (22), and the equipment mounting frame (14) forms a rotating structure through the protective plate (23) and the hinge frame (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010290369.6A CN111403219A (en) | 2020-04-14 | 2020-04-14 | Travel switch for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010290369.6A CN111403219A (en) | 2020-04-14 | 2020-04-14 | Travel switch for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111403219A true CN111403219A (en) | 2020-07-10 |
Family
ID=71431607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010290369.6A Pending CN111403219A (en) | 2020-04-14 | 2020-04-14 | Travel switch for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111403219A (en) |
-
2020
- 2020-04-14 CN CN202010290369.6A patent/CN111403219A/en active Pending
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