Fixing device for maintenance of elevator pit
By introducing a wireless communication module and an electric latch into the elevator pit maintenance fixing device, the safety circuit of the elevator can be remotely controlled to be cut off, which solves the safety hazard problem for maintenance personnel in the existing technology and improves the safety of elevator maintenance.
Patent Information
- Application Number
- CN202520221863.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-12
AI Technical Summary
The lack of remotely controlled pit inspection and maintenance devices in existing elevators poses a safety hazard when maintenance personnel enter the pit.
An elevator pit maintenance and fixing device was designed, which includes an electric latch with a wireless communication module, a stop bar, and a micro switch. The locking tongue is driven to rise by remote control, and the stop bar rotates under the action of gravity to cut off the elevator safety circuit, thereby realizing the remote control of the safety circuit cut-off.
This technology enables remote disconnection of the elevator safety circuit from outside the shaft, avoiding the risk of elevator falls when maintenance personnel enter the pit and improving safety.
Smart Images
Figure CN223674079U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to elevator field especially relates to elevator pit overhauling fixing device. BACKGROUND
[0002] At present, most of the market elevators do not equip pit overhauling fixing device, a few elevators equip the device, but do not have remote control function, need to enter the pit first and manually cut off the safety circuit of the elevator, have certain security risks. INVENTION CONTENTS
[0003] The utility model aims at providing an elevator pit overhauling fixing device capable of remotely cutting off the safety circuit of the elevator.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of elevator pit overhauling fixing device, comprising: elevator guide rail, the main plate is arranged on the elevator guide rail, the through hole is arranged on the main plate, the electric bolt with wireless communication module is arranged on the main plate above the through hole, the blocking rod is rotatably arranged on the main plate below the through hole, the insertion slot is arranged on the top wall of the blocking rod, the lock tongue of the electric bolt is inserted into the insertion slot, the weight block is arranged on the side wall of the blocking rod, the microswitch is arranged on the main plate, and the microswitch and the weight block on the blocking rod are located on the same side.
[0005] Further, the aforementioned elevator pit overhauling fixing device, wherein the limiting plate is arranged on the main plate, and the blocking rod abuts against the limiting plate.
[0006] Further, the aforementioned elevator pit overhauling fixing device, wherein the connecting structure between the blocking rod and the main plate is that one hinge seat is arranged on the main plate on both sides of the through hole respectively, a rotating shaft is arranged between the two hinge seats, the blocking rod is sleeved on the rotating shaft and is aligned with the through hole.
[0007] Further, the aforementioned elevator pit overhauling fixing device, wherein the blocking ring is clamped on both ends of the rotating shaft.
[0008] Further, the aforementioned elevator pit overhauling fixing device, wherein the connecting structure between the main plate and the elevator guide rail is that a plurality of clamping blocks are clamped on both ends of the elevator guide rail respectively, the bolt is arranged in the clamping block, and the bolt is screw-connected with the lock nut after penetrating through the main plate.
[0009] The elevator pit maintenance fixing device has the advantages that when the elevator pit is maintained, the lock tongue on the electric bolt is driven to ascend by the remote control equipment, the lock tongue is separated from the insertion slot of the blocking rod after ascending, the blocking rod rotates downward to the micro switch direction under the gravity of the weight block, the blocking rod is abutted on the micro switch to cut off the safety circuit of the elevator, thus the safety circuit of the elevator can be cut off when a person is outside the shaft, and the risk of elevator falling when the installation and maintenance personnel enters the pit to operate the device is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 is a structural schematic view of the elevator pit maintenance fixing device in the front view.
[0011] Figure 2 is Figure 1 a structural schematic view in the top view.
[0012] Figure 3 is Figure 1 a structural schematic view in the sectional view.
[0013] Figure 4 is a structural schematic view of the elevator pit maintenance fixing device abutting on the micro switch. DETAILED DESCRIPTION
[0014] The technical scheme of the utility model will be further described in connection with the drawings and preferred embodiments.
[0015] As Figures 1-4 shown, the elevator pit maintenance fixing device comprises: an elevator guide rail 1, a main plate 2 is arranged on the elevator guide rail 1, and the connecting structure between the main plate 2 and the elevator guide rail 1 is that a plurality of clamping blocks 11 are clamped at the two ends of the elevator guide rail 1, bolts 12 are arranged in the clamping blocks 11, and the bolts 12 are threadedly connected with lock nuts 13 after penetrating through the main plate 2. A through hole 21 is arranged on the main plate 2, an electric bolt 3 with a wireless communication module is arranged on the main plate 2 above the through hole 21, a blocking rod 4 is rotatably arranged on the main plate 2 below the through hole 21, an insertion slot 41 is arranged on the top wall of the blocking rod 4, the lock tongue 31 of the electric bolt 3 is inserted into the insertion slot 41, and the connecting structure between the blocking rod 4 and the main plate 2 is that a hinge seat 22 is arranged on each of the two sides of the main plate 2, a rotating shaft 23 is arranged between the two hinge seats 22, the blocking rod 4 is sleeved on the rotating shaft 23 and is aligned with the through hole 21, a blocking ring 231 is clamped at each end of the rotating shaft 23, a weight block 42 is arranged on one side wall of the blocking rod 4, a micro switch 5 is arranged on the main plate 2, the weight block 42 on the blocking rod 4 is located on the same side as the micro switch 5, a limiting plate 6 is arranged on the main plate 2, and the blocking rod 4 is abutted on the limiting plate 6.
[0016] When the elevator pit is overhauled, the lock tongue 31 on the electric bolt 3 is driven to rise by the remote control device, and after the lock tongue 31 rises, it is separated from the insertion slot 41 of the blocking rod 4, so that the blocking rod 4 rotates and descends to the micro switch 5 through the through hole 21 under the gravity of the weight block 42, and the blocking rod 4 is abutted on the micro switch 5 to cut off the safety circuit of the elevator, so that the safety circuit of the elevator can be cut off outside the shaft, and the risk of elevator falling when the installation and maintenance personnel enter the pit to operate the device is avoided. After the overhaul is completed, the blocking rod 4 is reversely rotated to abut on the limiting plate 6, and then the lock tongue 31 in the electric bolt 3 is driven to descend and reinsert into the insertion slot 41 in the blocking rod 4, so that the blocking rod 4 remains in the vertical state.
[0017] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit it, although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that: the specific embodiments of the present application can still be modified or replaced, and any modification or equivalent replacement without departing from the spirit and scope of the present application should be covered within the protection scope of the claims of the present application.
Claims
1. Pit access fixture for an elevator, comprising: The utility model provides an elevator guide rail, its characterized in be provided with main plate on elevator guide rail, be provided with through -hole on main plate, be provided with electric bolt with wireless communication module on the main plate located through -hole top, be provided with the blocking lever rotationally on the main plate located through -hole below, be provided with the slot on the top wall of blocking lever, the lock tongue of electric bolt inserts into the slot, be provided with the weight on the side wall of blocking lever, be provided with the micro -switch on the main plate, and the micro -switch with the weight on blocking lever is located same side.
2. The elevator pit service fixture of claim 1, wherein: Be provided with the limit stop on the main plate, and blocking lever abuts on limit stop.
3. The elevator pit service fixture of claim 1, wherein: The connecting structure between blocking lever and main plate is that one hinge seat is arranged on the main plate located through -hole both sides respectively, a rotating shaft is arranged between the two hinge seats, the blocking lever is sleeved on the rotating shaft and is aligned with the through -hole.
4. The elevator pit service fixture of claim 3, wherein: The blocking ring is clamped on both ends of the rotating shaft.
5. The elevator pit service fixture of claim 1, wherein: The connecting structure between main plate and elevator guide rail is that a plurality of clamping blocks are clamped on both ends of the elevator guide rail, bolts are arranged in the clamping blocks, the bolts are screwed with lock nuts after passing through the main plate.