CN212503496U

CN212503496U - An elevator triangular lock unlocking device

Info

Publication number: CN212503496U
Application number: CN202021132645.8U
Authority: CN
Inventors: 颜绍军; 黄丹燕; 杨小科
Original assignee: Hitachi Building Technology Guangzhou Co Ltd
Current assignee: Hitachi Building Technology Guangzhou Co Ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-02-09
Anticipated expiration: 2030-06-17

Abstract

The utility model belongs to the technical field of elevators, and discloses an elevator triangular lock unlocking device. The elevator triangular lock unlocking device includes: an operating rod, which can be suitable for the construction personnel to hold; and a triangular key, which can unlock the elevator triangular lock; the triangular key is movably connected with the operating rod, and forms a plurality of The installation gears, when the triangular key is in each of the installation gears, can form different included angles with the operating rod. The elevator triangular lock unlocking device provided by the utility model, by installing the triangular key to different installation positions, can form various postures such as vertical and parallel between the triangular key and the operating rod, thereby satisfying the installation in different elevators. Ladder opening requirements for triangular locks with different positions and installation angles.

Description

Unlocking device for triangular lock of elevator

Technical Field

The utility model relates to an elevator technical field especially relates to an elevator triangular lock unlocking device.

Background

The triangular lock key of the elevator is a special tool for opening the triangular lock of the elevator on the elevator floor door, and is commonly called as the triangular lock key because the shape of the lock hole is regular triangle. The key is a special tool for opening the landing door to enter the elevator shaft for maintenance or rescue in elevator maintenance and emergency situations.

Because the landing door of some elevators is higher, the installation position of the elevator triangular lock also increases along with the elevator triangular lock, and constructors with insufficient height hold the triangular lock key and are difficult to reach the triangular lock, or even if the constructors just reach the triangular lock, the elevator landing door is opened under the condition of standing on tiptoe, and very serious potential safety hazards also exist.

Therefore, products with operating rods with certain lengths are additionally arranged on the market through some triangular keys, but the existing triangular keys are fixedly connected with the operating rods in a welding mode and the like, the installation angles of the triangular keys cannot be adjusted, and the ladder opening requirements of triangular locks with different installation positions and installation angles in different elevators cannot be met.

Therefore, the above problems need to be solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elevator triangular lock unlocking device, this elevator triangular lock unlocking device can satisfy the demand of opening the ladder of the triangular lock that mounted position and installation angle are different in the different elevators.

To achieve the purpose, the utility model adopts the following technical proposal:

an elevator triangular lock unlocking device comprising:

an operating lever adapted to be held by a constructor; and

the triangular lock key can unlock the elevator triangular lock; the triangle key with action bars swing joint, and with the action bars forms a plurality of installation gears, the triangle key is in each during the installation gear, can with the action bars forms different contained angles.

Preferably, the cam key is hinged to the operating rod and can rotate around the radial direction of the operating rod to be in each mounting gear.

Preferably, the elevator triangular lock unlocking device further comprises a locking mechanism, and the locking mechanism has an unlocking state and a locking state; when the locking mechanism is in an unlocking state, the triangular key can rotate to each mounting gear, and when the locking mechanism is in a locking state, the locking mechanism locks the triangular key and the operating rod.

Preferably, the triangular key comprises a key body and a gear piece connected with the key body, the gear piece is hinged to the operating rod, and a plurality of clamping grooves are formed in the gear piece in the circumferential direction of the hinged position of the gear piece and the operating rod; the locking mechanism comprises a gear pin which can be movably connected to the operating rod, and the gear pin can move towards or away from the gear piece so as to be inserted into or separated from the clamping groove.

Preferably, the locking mechanism further comprises:

and two ends of the spring are respectively connected or abutted to the gear pin and the operating rod so that the gear pin can be kept in insertion connection with the clamping groove.

Preferably, the hinge joint of the triangle key and the operating rod is positioned on the axis of the operating rod.

Preferably, when the triangular key is located at each mounting gear, an included angle of 0 degree, 90 degrees and-90 degrees is formed between the triangular key and the operating rod at least.

Preferably, the operating rod is a telescopic rod, and the telescopic rod comprises at least two rod bodies which are sequentially sleeved and connected.

Preferably, the telescopic rod further comprises a hand screw, and the hand screw is radially arranged on one rod body with a larger shaft diameter in any two adjacent rod bodies so as to penetrate through the rod body with the larger shaft diameter and abut against the outer wall of the rod body with the smaller shaft diameter.

Preferably, the outer wall of each rod body abutting against the hand screw is planar.

The utility model has the advantages that:

the utility model provides an elevator triangular lock unlocking device is through installing the triangular lock key to different installation gears to make form between triangular lock key and the action bars such as multiple gesture such as mutually perpendicular, parallel, and then satisfy the demand of opening the ladder of the triangular lock that mounted position and installation angle are different in the different elevators.

Drawings

Fig. 1 is a schematic structural view of an elevator triangular lock unlocking device in an embodiment of the present invention when an operation lever is in an extended state;

fig. 2 is a schematic structural view of the triangle key and the operating rod at an included angle of 0 ° in the embodiment of the present invention;

fig. 3 is a schematic structural view of the triangular key and the operating rod at an included angle of 90 ° in the embodiment of the present invention;

FIG. 4 is a schematic structural view of the triangle key and the operating rod at an included angle of-90 degrees in the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a triangular key according to an embodiment of the present invention;

FIG. 6 is a sectional view taken along line A-A of FIG. 1;

fig. 7 is a schematic structural view of the locking mechanism in an unlocked state according to an embodiment of the present invention;

fig. 8 is a schematic structural view of another view angle of the unlocking device for the elevator triangular lock in the embodiment of the present invention when the operation lever is in the extended state;

FIG. 9 is a sectional view taken along line B-B of FIG. 8;

fig. 10 is an exploded view of the operation lever according to the embodiment of the present invention.

Fig. 11 is a schematic structural view of the unlocking device for the elevator triangular lock in the embodiment of the present invention when the operation lever is in the retracted state.

In the figure:

1. an operating lever; 11. a notch; 12. an installation part; 13. a rod body is arranged; 131. a limiting part; 14. a lower rod body; 15. screwing the screw by hand; 16. a U-shaped member; 161. a side wall; 162. a bottom wall; 17. a T-shaped handle;

2. a triangular key; 21. a key body; 22. a gear piece; 221. a card slot;

3. a locking mechanism; 31. a gear pin; 311. a plug portion; 312. a lug; 32. a spring; 33. a limiting sheet; 34. and a nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

This embodiment provides an elevator triangular lock unlocking device, this elevator triangular lock unlocking device can be used for opening elevator layer door to be applicable to elevator constructor's dimension and operation scenes such as rescue, simultaneously, this elevator triangular lock unlocking device can satisfy the demand of opening the ladder of the triangular lock of mounted position and installation angle difference in the different elevators, also does benefit to constructor and opens elevator layer door fast, safely.

Referring to fig. 1, the unlocking device for the elevator triangular lock comprises an operating rod 1 and a triangular key 2, wherein the operating rod 1 can be held by a constructor. The triangular key 2 can unlock the elevator triangular lock. Triangle key 2 and action bars 1 swing joint to form a plurality of installation gears with action bars 1, triangle key 2 can form different contained angles with action bars 1 when being in each installation gear.

By means of the structure, the triangular key 2 is installed to different installation gears, so that multiple postures such as being perpendicular to each other and being parallel are formed between the triangular key 2 and the operating rod 1, and the ladder opening requirements of triangular locks with different installation positions and installation angles in different elevators are met.

In this embodiment, the cam key 2 can be hinged to the operating rod 1 and can rotate around the radial direction of the operating rod 1 to be in each installation gear. That is, the triangular key 2 can be rotated in the radial direction of the operating lever 1 to be oriented in various postures such as perpendicular to and parallel to the operating lever 1.

Preferably, referring to fig. 2 to 4, the triangular key 2 preferably forms an angle of at least 0 °, 90 ° and-90 ° with the operating rod 1 in each installation position. The triangular lock key 2 and the operating rod 1 form 90 degrees and-90 degrees installation gears which mainly correspond to the situation that the triangular lock is installed on the elevator hall door, and because the triangular columns in one part of elevator triangular lock holes are regular triangles (namely, the bottom edges are under) and the triangular columns in the other part of elevator triangular lock holes are inverted triangles (namely, the bottom edges are above), when the triangular lock key 2 rotates 180 degrees around the hinge shaft to be switched to the installation gears which form 90 degrees and-90 degrees with the operating rod 1, the triangular hole of the triangular lock key 2 is just switched to be the regular triangle or the inverted triangle so as to correspond to the shapes of the two lock holes. When the lock is unlocked, the operating rod 1 is broken off, and a moment is applied to the side surface of the triangular key 2, so that the triangular key 2 can be driven to rotate together, and the triangular lock is unlocked.

The triangular lock key 2 and the operating rod 1 form a 0-degree installation gear, so that the triangular lock is mainly used for the situation that the triangular lock is installed on a cross beam at the top of a door frame of the elevator hall door, and at the moment, a lock hole of the triangular lock faces the ground. When the lock is unlocked, the telescopic rod is rotated to drive the triangular lock key 2 to rotate together, so that the triangular lock is unlocked.

Preferably, the elevator triangular lock unlocking device further comprises a locking mechanism 3, wherein the locking mechanism 3 has an unlocking state and a locking state; when the locking mechanism 3 is in an unlocked state, the triangular key 2 can be rotated to each mounting gear, and when the locking mechanism 3 is in a locked state, the locking mechanism 3 locks the triangular key 2 with the operating rod 1.

Referring to fig. 4 to 6, the triangular key 2 includes a key body 21 and a shift tab 22 connected to the key body 21, the shift tab 22 is hinged to the operating rod 1, and a plurality of slots 221 are formed in the shift tab 22 at the hinge position of the shift tab and the operating rod 1.

The locking mechanism 3 includes a shift position pin 31 movably connected to the operating lever 1, and the shift position pin 31 can move toward or away from the shift position piece 22 to be inserted into or disengaged from the catch groove 221, so as to lock or unlock the shift position piece 22.

Furthermore, the locking mechanism 3 further includes a spring 32, and two ends of the spring 32 are respectively connected or abutted to the shift position pin 31 and the operating rod 1, so that the shift position pin 31 can be kept inserted into the slot 221.

Specifically, referring to fig. 10, in the present embodiment, a notch 11 is formed at one end of the operating rod 1, the notch 11 extends along an axial direction of the operating rod 1 and radially penetrates through the operating rod 1, so that a pair of mounting portions 12 arranged at intervals is formed at an end of the operating rod 1, and the shift tab 22 is inserted into the notch 11 and is hinged to the operating rod 1 through a rivet inserted between the pair of mounting portions 12.

The bottom of the notch 11 is provided with a limiting sheet 33. The gear pin 31 movably penetrates through the limiting piece 33, and a part of the gear pin 31 located below the limiting piece 33 is connected with a limiting piece such as a nut 34, so that the gear pin 31 cannot penetrate through the limiting piece 33 upwards. The top of the shift position pin 31 is provided with a plug portion 311 capable of being inserted into the card slot 221, and a pair of lugs 312 are arranged on the shift position pin 31 and below the plug portion 311, and the lugs 312 extend along the radial direction of the shift position pin 31 and extend out of the slot 11.

The spring 32 is sleeved on a portion of the shift position pin 31 between the lug 312 and the stopper piece 33, and the spring 32 has a movement tendency of moving toward the shift position piece 22 by an extension elastic force of the spring 32, so that when the plug portion 311 of the shift position pin 31 corresponds to the notch 221 of the shift position piece 22, the spring 32 can press the shift position pin 31 upward to make the plug portion 311 of the shift position pin 31 engage with the notch 221 of the shift position piece 22 in an inserting manner, when an installation position of the key 2 needs to be adjusted, the spring 32 is compressed by manually pressing the pair of lugs 312 downward to move the shift position pin 31 downward, and the plug portion 311 of the shift position pin 31 is disengaged from the notch 221 of the shift position piece 22, so that the key 2 can be rotated to a desired installation position, and then the lugs 312 are released, and the spring 32 is deformed to make the plug portion 311 of the shift position pin 31 engage with the notch 221 of the shift position piece 22 again.

The above-mentioned locking mechanism 3 is a preferred solution provided by this embodiment, and in other alternative embodiments, the locking mechanism 3 may be configured in other structural forms. For example, the shift position pin 31 can be axially sleeved or inscribed on the operating rod 1 through a thread, and when the shift position pin 31 is rotated in a forward direction or a reverse direction, the shift position pin 31 can be moved towards or away from the triangular key 2, so as to be inserted into or separated from the clamping groove 221 of the shift position piece 22. For another example, similar to the above-mentioned structure of the solution, the pair of mounting portions 12 are provided with insertion holes, and a latch is movably inserted into the insertion holes to lock or unlock the spatial position of the shift position pin 31 by inserting or removing the latch. Therefore, the above-described preferred embodiments should not be construed as limiting the structure of the locking mechanism 3.

It should be noted that the hinged position of the key 2 and the operating rod 1 is preferably located on the axial line of the operating rod 1, so that when the key 2 and the operating rod 1 form an installation position of 0 °, the key 2 and the operating rod 1 are coaxial, which facilitates the force application of a constructor, and when the key 2 and the operating rod 1 form installation positions of angles other than 0 °, the hinged position of the key 2 and the operating rod 1 is located on the axial line of the operating rod 1, which also facilitates the constructor to accurately wrestling the operating rod 1 in direction based on the spatial position of the operating rod 1.

In this embodiment, the operating rod 1 is preferably a hollow steel pipe, which is beneficial to reducing the weight of the operating rod 1 and is convenient for the operation of constructors.

In order to facilitate storage or further enable the unlocking device of the elevator triangular lock to be suitable for an elevator with a higher hall door, the operating rod 1 is preferably a telescopic rod, and the telescopic rod can comprise at least two rod bodies which are sequentially sleeved and connected.

Optionally, be provided with the elasticity buckle that can make the two form different overlap length between two arbitrary adjacent bodies of rod, through the elasticity buckle on one of them body of rod rather than the card hole joint of the different positions that set up on the body of rod that cup joints promptly, the overlap length between two bodies of rod all can be adjusted, also reaches above-mentioned messenger's body of rod length flexible adjustable purpose.

In this embodiment, the telescopic rod is preferably adjusted in length by the hand screw 15. The hand screw 15 is radially arranged on one rod body with larger shaft diameter in any two adjacent rod bodies so as to penetrate through the rod body with larger shaft diameter and abut against the outer wall of the rod body with smaller shaft diameter, and therefore the two rod bodies are abutted tightly and locked with each other.

Specifically, referring to fig. 8 to 11, taking the telescopic rod composed of two sections of the upper rod body 13 and the lower rod body 14 as an example, the top end of the lower rod body 14 with a larger diameter is fixedly provided with a U-shaped member 16 capable of being screwed with the hand screw 15, the U-shaped member 16 includes a pair of side walls 161 arranged oppositely and a bottom wall 162 connected with the pair of side walls 161, the pair of side walls 161 and the inner cavity of the lower rod body 14 are coaxially provided with through holes capable of penetrating the upper rod body 13, and the lower rod body 14 penetrates through the two through holes in sequence and then penetrates out of the U-shaped member 16 to adjust the overlapping length of the lower rod body 14, thereby adjusting. The hand screw 15, which is screwed radially along the telescopic rod on the bottom wall 162, can tighten and lock the upper rod body 13 after being screwed. By means of the structure, the overlapping length between the adjacent rod bodies can be adjusted at will, and the telescopic rod is suitable for constructors to adjust the length of the telescopic rod to the length which is most suitable for force application operation.

Further, the outer wall of each rod body abutting against the hand screw 15 is planar. Continuing with the above description of the telescopic rod composed of two rod bodies, i.e. the upper rod body 13 and the lower rod body 14, the upper rod body 13 is engaged with the end surface of the hand screw 15 through the planar outer wall, and compared with the engagement with the end surface of the hand screw 15 through the arc surface, the contact area between the upper rod body 13 and the end surface of the hand screw 15 can be increased, the friction force can be increased, the stress condition can be improved, and the fastening effect can be ensured to be firm. Meanwhile, the section of each rod body is not circular through the plane-shaped outer wall, so that the rod body can be prevented from accidentally rotating in the using process.

Alternatively, the planar structure may be formed by recessing the outer wall of the upper rod 13 inward, and the planar structure does not extend to the bottom of the upper rod 13, so that the bottom of the upper rod 13 forms a step surface. By arranging two through holes on the U-shaped member 16 to be the cross-sectional profile of the portion of the upper rod 13 provided with the planar structure, the through holes can only penetrate through the portion of the upper rod 13 provided with the planar structure, and the step surface at the bottom of the upper rod 13 forms a limiting portion 131 for preventing the upper rod 13 from being accidentally separated when being pulled out upwards.

Alternatively, the bottom of the operating rod 1 may be provided with a T-shaped handle 17. For example, the T-shaped handle 17 is welded to the bottom end of the lowermost rod body, which facilitates the operator to rotate or break the key cam 2.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An elevator triangular lock unlocking device, characterized by comprising:

an operating lever (1) that can be suitably held by a constructor; and

the triangular lock key (2) can unlock the elevator triangular lock; triangle key (2) with action bars (1) swing joint, and with action bars (1) form a plurality of installation gears, triangle key (2) are in each during the installation gear, can with action bars (1) form different contained angles.

2. Elevator triangulation lock unlocking device according to claim 1, characterized in that the triangulation lock key (2) is hinged to the operating lever (1) and can rotate around the radial direction of the operating lever (1) to be in each of the installation gears.

3. The elevator triangular lock unlocking apparatus according to claim 2, characterized in that the elevator triangular lock unlocking apparatus further comprises a locking mechanism (3), the locking mechanism (3) having an unlocked state and a locked state; when locking mechanical system (3) are in the unblock state, triangle key (2) can rotate to each install the gear, when locking mechanical system (3) are in the lock state, locking mechanical system (3) will triangle key (2) with action bars (1) locking.

4. The elevator triangular lock unlocking apparatus according to claim 3, wherein:

the triangular key (2) comprises a key body (21) and a gear piece (22) connected with the key body (21), the gear piece (22) is hinged to the operating rod (1), and a plurality of clamping grooves (221) are formed in the gear piece (22) in the circumferential direction of the hinged position of the gear piece and the operating rod (1);

the locking mechanism (3) comprises a gear pin (31) movably connected to the operating rod (1), and the gear pin (31) can move towards or away from the gear piece (22) to be inserted into or separated from the clamping groove (221).

5. The elevator triangular lock unlocking apparatus according to claim 4, wherein the locking mechanism (3) further includes:

and two ends of the spring (32) are respectively connected or abutted to the gear pin (31) and the operating rod (1) so that the gear pin (31) can be kept in insertion connection with the clamping groove (221).

6. The elevator triangular lock unlocking apparatus according to claim 2, wherein the joint of the triangular key (2) and the operation lever (1) is located on the axial center line of the operation lever (1).

7. Elevator triangulation lock unlocking device according to claim 1, characterized in that the triangulation lock key (2) in each of the installation positions forms an angle of at least 0 °, 90 ° and-90 ° with the operating lever (1).

8. The unlocking device for the elevator triangulation lock according to any of the claims 1 to 7, characterized in that the operating rod (1) is a telescopic rod, and the telescopic rod comprises at least two rod bodies which are sequentially sleeved and connected.

9. The unlocking device for the elevator triangulation lock as recited in claim 8, wherein the telescopic rod further comprises a hand screw (15), and the hand screw (15) is radially disposed on any two adjacent rods with a larger shaft diameter so as to pass through the rod with the larger shaft diameter and abut against the outer wall of the rod with the smaller shaft diameter.

10. Elevator triangulation lock release device according to claim 9, characterized in that the outer wall of each rod against the hand screw (15) is planar.