CN216105494U - Elevator door lock device - Google Patents

Abstract

The utility model relates to the technical field of door lock equipment, in particular to an elevator door lock device. The elevator door lock device comprises a middle door lock assembly, a first door lock assembly and a second door lock assembly, wherein the middle door lock assembly comprises a protective cover, a passive contact assembly and a second lock catch, the first door lock assembly comprises a first active contact assembly, and the second door lock assembly comprises a first lock catch and a second active contact assembly; a first opening and a second opening are respectively formed in two sides of the protective cover, and the passive contact assembly is arranged in the protective cover; when the two elevator doors are closed in place, the second lock catch and the first lock catch are locked with each other, the part of the first active contact assembly can extend into the protective cover from the first opening and is in contact with the passive contact assembly, and the part of the second active contact assembly can extend into the protective cover from the second opening and is in contact with the passive contact assembly. The utility model has the advantages that: simple structure, with low costs, be convenient for the installation, integrated degree is high and the availability factor is high.

Description

Elevator door lock device

Technical Field

The utility model relates to the technical field of door lock equipment, in particular to an elevator door lock device.

Background

The elevator door lock device is used for locking the elevator door when the elevator is not at the flat-bed position so as to prevent passengers from falling into the hoistway; when the elevator is in the flat-bed position, it can be unlocked, thereby opening the elevator door.

According to the requirements of new standards, in the shaft, the machine space and the pulley, a protective cover (shell) is adopted to prevent direct contact with electrical equipment, the protection grade of the shell (shell) is not lower than IP2X, and the electric shock hazard of personnel in the installation, debugging and maintenance stages is avoided. The existing elevator door lock device meeting the IP2X requirement has the disadvantages of excessive parts, complex structure, complex installation process, inconvenient later maintenance and high cost.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for an elevator door lock device that has a simple structure, low cost, easy installation, high integration degree, and high use efficiency.

In order to solve the technical problem, the application provides the following technical scheme:

an elevator door lock device comprises a middle door lock component, a first door lock component moving along with one elevator door and a second door lock component moving along with the other elevator door, wherein the middle door lock component comprises a protective cover, a passive contact component and a second lock catch; a first opening and a second opening are respectively formed in two sides of the protective cover, the passive contact assembly is mounted in the protective cover, the first active contact assembly is located on one side, provided with the first opening, of the protective cover, and the second active contact assembly is located on one side, provided with the second opening, of the protective cover; when the two elevator doors are closed in place, the second lock catch and the first lock catch are locked with each other, part of the first active contact assembly can extend into the protective cover from the first opening and is in contact and electric connection with the passive contact assembly, and part of the second active contact assembly can extend into the protective cover from the second opening and is in contact and electric connection with the passive contact assembly.

In the application, the passive contact assembly is integrated in the protective cover, the first active contact assembly and the second active contact assembly are in contact with or break contact with the passive contact assembly, so that the elevator door lock is electrically locked or unlocked, and the elevator door is locked or unlocked by matching with the mechanical locking or unlocking of the first lock catch and the second lock catch; the elevator door lock device is high in integral degree, simple in structure, small in number of parts, convenient to install and maintain and capable of reducing cost, the first active contact assembly, the second active contact assembly and the passive contact assembly can be in contact with each other and can be concentrated in the protective cover, the requirement of IP2X is met, and meanwhile the reliability and the use efficiency of the elevator door lock device are improved.

In one embodiment, the passive contact assembly includes a first passive contact unit disposed proximate to the first opening and a second passive contact unit disposed proximate to the second opening; the first active contact assembly can extend into the protective cover to be contacted with the first passive contact unit, and the second active contact assembly can extend into the protective cover to be contacted with the second passive contact unit.

With the arrangement, part of the second active contact assembly can extend into the protective cover from the second opening and is in contact with and electrically connected with the second passive contact unit; the first active contact assembly can extend into the protective cover from the first opening and is in contact with and electrically connected with the first passive contact unit; with the integration of first passive contact unit and the passive contact unit of second in the protection casing, be convenient for installation, use and later maintenance.

In one embodiment, the second passive contact unit comprises a first passive contact and a second passive contact, and the first passive contact and the second passive contact are arranged in the protective cover at intervals; the first passive contact unit comprises a third passive contact and a fourth passive contact, and the third passive contact and the fourth passive contact are arranged in the protective cover at intervals; the first passive contact and the third passive contact are connected with each other, and the fourth passive contact and the second passive contact are arranged at intervals; the passive contact assembly further comprises a first lead and a second lead, the first lead is connected with the second passive contact, and the second lead is connected with the fourth passive contact.

With the arrangement, part of the second active contact assembly can extend into the protective cover from the second opening, and is in contact with and electrically connected with the first passive contact and the second passive contact; the first active contact assembly can extend into the protective cover from the first opening, and is in contact with and electrically connected with the third passive contact and the fourth passive contact; after the first active contact assembly and the second active contact assembly are contacted with the passive contact assembly, an electric loop can be formed: the current enters a fourth passive contact through a second lead, the fourth passive contact is communicated with the third passive contact through a first active contact assembly, the third passive contact is communicated with the first passive contact, the first passive contact is communicated with the second passive contact through a second active contact assembly, and finally the current flows out of the first lead to form a loop. The structure is succinct, connects reliably, and the installation is maintained conveniently.

In one embodiment, the first active contact assembly includes a mounting plate connected to the elevator door and an elastic contact structure, one end of the elastic contact structure is connected to the mounting plate, and the other end of the elastic contact structure is capable of being driven by the mounting plate to extend into the protective cover through the first opening and press-contact the first passive contact unit.

Due to the arrangement, the first active contact assembly and the passive contact assembly are in elastic contact, so that the problems of relative operation and abrasion caused when the first active contact assembly and the passive contact assembly are in contact can be avoided; when the first active contact assembly is in elastic contact with the passive contact assembly, the first active contact assembly can be tightly attached to the passive contact assembly through elastic force generated by elastic deformation and is stably and electrically connected with the passive contact assembly, so that abrasion caused by relative operation between the first active contact assembly and the passive contact assembly is avoided, the contact stability is improved, and the reliability of the elevator door lock device is improved; the elastic contact structure can stretch into the protective cover under the driving of the mounting plate, and the elastic contact structure is extruded along with the in-process that the mounting plate stretches into the protective cover, and the elastic force generated when the elastic contact structure is compressed can enable the elastic contact structure to be more tightly contacted with the passive contact assembly.

In one embodiment, the elastic contact structure includes a connecting portion, a conduction portion, and an elastic member, the connecting portion is movably connected to the mounting plate, the elastic member is sleeved on the connecting portion and can abut against between the mounting plate and the conduction portion, and the conduction portion is used for matching with the first passive contact unit.

So set up, conduction portion can stretch into in the protection casing with the contact of passive contact subassembly and electricity is connected, stretches into the in-process of protection casing with the contact of passive contact subassembly when conduction portion, and the elastic component is extrudeed under the effect of conduction portion and mounting panel, and the produced elastic force of compression can make conduction portion and contact with more closely with the passive contact subassembly to improve the stability of contact.

In one embodiment, the connecting part is provided with at least two elastic arms, the mounting plate is provided with a mounting hole, the at least two elastic arms are inserted into the mounting hole and can move in the mounting hole, and the at least two elastic arms can approach each other under the action of external force; every the one end of bullet arm is equipped with the back-off, the back-off is followed the bullet arm is worn to establish the mounting hole, and with the mounting panel is kept away from a side of elastic component supports and leans on.

Due to the arrangement, the at least two elastic arms can approach each other under the action of external force, so that the first active contact is conveniently installed on the installation plate, and the installation is convenient and fast, the structure is simple, and the cost is low; the back-off can make the bullet arm be difficult for deviating from the mounting hole, improves the steadiness that bullet arm and mounting panel are connected.

In one embodiment, the secondary catch includes a fixed catch located outside the shield; the first lock catch comprises a rotating lock hook, and the second active contact assembly is connected with the rotating lock hook; the rotating lock hook can rotate to be buckled with the fixed lock hook outside the protective cover, and meanwhile, the second active contact assembly rotates to be in contact with the second passive contact unit.

According to the arrangement, only the passive contact assembly is arranged in the protective cover, the protective cover only conducts on-off of an electrical loop, mechanical on-off between the first lock catch and the second lock catch is conducted outside the protective cover, and therefore the protective performance is better, and the protective cover is safer and more reliable; the second lock catch adopts a fixed lock hook, the first lock catch adopts a rotating lock hook, and the second active contact assembly is connected with the rotating lock hook, so that the mechanical locking of the first lock catch and the second lock catch and the electrical locking of the second active contact assembly and the second passive contact unit are simultaneously carried out, the safety is better, the overall layout is reasonable, and the space is saved.

In one embodiment, the first latch further includes a second fixing plate, the rotating latch hook includes a first latch hook, a fixing wheel and a driving wheel, the second fixing plate is connected to the elevator door, the first latch hook is mounted on the second fixing plate through an axle of the fixing wheel, the first latch hook can rotate around the axle of the fixing wheel, the driving wheel is mounted on the first latch hook to drive the first latch hook to rotate, a telescopic assembly is further abutted between the first latch hook and the second fixing plate, and when the rotating latch hook and the fixing latch hook are mutually latched, the telescopic assembly is in a compressed state.

So set up, extending structure's compressive force can order about first latch hook and fixed latch hook locking, ensures simultaneously that second initiative contact subassembly and passive contact subassembly contact are inseparable, safe and reliable.

In one embodiment, the second active contact assembly comprises a second active contact and a contact mounting seat which are connected with each other, the contact mounting seat is connected with the top end of the hook portion of the first lock hook, the top end of the hook portion is provided with a strip-shaped hole, and the first lock hook penetrates through the strip-shaped hole through a bolt to be connected with the top end of the hook portion.

So set up, the position of second initiative contact can finely tune, guarantees to contact reliably with passive contact subassembly.

In one embodiment, the first passive contact and the second active contact assembly are of a tab structure, the first passive contact and the second passive contact are arranged in a step shape, and the corresponding second active contact assembly has a step-shaped contact surface.

Therefore, impurities such as dust or small particles are not easy to accumulate on the contact, and dust accumulation on the contact is avoided, so that the risk of poor contact of the door lock is avoided, and the reliability of the elevator door lock device is greatly improved.

Compared with the prior art, the elevator door lock device provided by the application integrates the passive contact assembly into the protective cover, realizes the electrical locking or unlocking of the elevator door lock through the contact or disconnection contact of the first active contact assembly and the second active contact assembly with the passive contact assembly, and realizes the locking or unlocking of the elevator door in cooperation with the mechanical locking or unlocking of the first lock catch and the second lock catch; the elevator door lock device is high in integral degree, simple in structure, small in number of parts, convenient to install and maintain and capable of reducing cost, the first active contact assembly, the second active contact assembly and the passive contact assembly can be in contact with each other and can be concentrated in the protective cover, the requirement of IP2X is met, and meanwhile the reliability and the use efficiency of the elevator door lock device are improved.

Drawings

Fig. 1 is a partial structural view of an elevator door lock device according to the present invention.

Fig. 2 is a schematic structural diagram of a second active contact assembly and a first latch according to the present invention.

Fig. 3 is a schematic structural view of the middle door lock assembly provided by the present invention.

Fig. 4 is a schematic structural diagram of a first active contact assembly provided in the present invention.

Fig. 5 is a schematic view of the elastic contact structure provided by the present invention when it is not mounted on the mounting plate.

In the figure, 100, elevator door lock device; 10. a middle door lock assembly; 11. a protective cover; 111. a second opening; 112. a first opening; 13. a passive contact assembly; 131. a second passive contact unit; 1311. a first passive contact; 1312. a second passive contact; 132. a first passive contact unit; 1321. a third passive contact; 1322. a fourth passive contact; 133. a first conductive line; 134. a second conductive line; 135. a wire guide hole; 136. a screw; 14. a second lock catch; 141. fixing the latch hook; 20. a second door lock assembly; 21. a first lock catch; 211. a second fixing plate; 22. rotating the latch hook; 221. a first latch hook; 2211. a hook top end; 2212. a strip-shaped hole; 2213. a bolt; 222. a fixed wheel; 223. a drive wheel; 23. a second active contact assembly; 231. a second active contact; 232. a contact mounting base; 30. a first door lock assembly; 31. an elastic contact structure; 311. a first active contact; 3111. a connecting portion; 3112. a conduction part; 3113. a spring arm; 3114. reversing; 3115. a guide portion; 3116. conducting the contact; 312. an elastic member; 313. mounting grooves; 314. mounting a plate; 3141. mounting holes; 32. a first active contact assembly; 50. a door head plate; 51. a first fixing plate; 52. a first hanger; 53. a second hanger; 60. a telescoping assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the present application provides an elevator door lock device 100 for locking an elevator door when the elevator is not in a flat-bed position to prevent passengers from falling into a hoistway; when the elevator is in the flat-bed position, it can be unlocked, thereby opening the elevator door.

The elevator door lock device 100 provided by the present application includes a middle door lock assembly 10, a first door lock assembly 30 moving with one elevator door, and a second door lock assembly 20 moving with another elevator door; the middle door lock assembly 10 comprises a protective cover 11, a passive contact assembly 13 and a second lock catch 14, the first door lock assembly 30 comprises a first active contact assembly 32, and the second door lock assembly 20 comprises a first lock catch 21 and a second active contact assembly 23; the two sides of the protection cover 11 are respectively provided with a second opening 111 and a first opening 112, the passive contact assembly 13 is installed in the protection cover 11, the first active contact assembly 32 is located at one side of the protection cover 11 with the first opening 112, the second active contact assembly 23 is located at one side of the protection cover 11 with the second opening 111, when the two elevator doors are closed in place, the second lock catch 14 and the first lock catch 21 are locked with each other, and part of the first active contact assembly 32 can extend into the protection cover 11 from the first opening 112 and is in contact with and electrically connected with the passive contact assembly 13; a portion of the second active contact assembly 23 can extend into the shield 11 through the second opening 111 and contact and electrically connect with the passive contact assembly 13.

When the first active contact assembly 32 is electrically connected with the passive contact assembly 13 and the second active contact assembly 23 is electrically connected with the passive contact assembly 13, the door lock electrical loop is switched on and electrically locked; when the first active contact assembly 32 is electrically disconnected from the passive contact assembly 13 and the second active contact assembly 23 is electrically disconnected from the passive contact assembly 13, the door lock electrical circuit is disconnected and electrically unlocked.

In the application, the passive contact assembly 13 is integrated in the protective cover 11, the elevator door lock is electrically locked or unlocked by the contact or disconnection between the first active contact assembly 32 and the second active contact assembly 23 and the passive contact assembly 13, and the elevator door is locked or unlocked by matching with the mechanical locking or unlocking of the first lock catch 21 and the second lock catch 14; the elevator door lock device 100 has high integral degree, simple structure, less parts, convenient installation and maintenance and reduced cost, and can concentrate the contact of the first active contact assembly 32, the second active contact assembly 23 and the passive contact assembly 13 in the protective cover 11, thereby satisfying the IPX requirement and improving the reliability and the use efficiency of the elevator door lock device 100.

Referring to fig. 3, the passive contact assembly 13 includes a first passive contact unit 132 and a second passive contact unit 131, the first passive contact unit 132 is disposed near the first opening 112, and the second passive contact unit 131 is disposed near the second opening 111; the first active contact assembly 32 can extend into the protection cover 11 to contact with the first passive contact unit 132, and the second active contact assembly 23 can extend into the protection cover 11 to contact with the second passive contact unit 131; the first passive contact unit 132 and the second passive contact unit 131 are integrated in the protection cover 11, so that the installation, the use and the later maintenance are convenient.

Furthermore, the second passive contact unit 131 includes a first passive contact 1311 and a second passive contact 1312, the first passive contact 1311 and the second passive contact 1312 are disposed in the protection cover 11 at an interval, the first passive contact unit 132 includes a third passive contact 1321 and a fourth passive contact 1322, the fourth passive contact 1322 is disposed at an interval with the second passive contact 1312, the fourth passive contact 1322 is not connected with the second passive contact 1312, and the first passive contact 1311 is connected with the third passive contact 1321; the second passive contact 1312, the third passive contact 1321 and the fourth passive contact 1322 are all fixed to the shield cap 11 by screws 136. The first active contact assembly 32 can extend into the protection mask 11 from the first opening 112, and is in contact with and electrically connected to the third passive contact 1321 and the fourth passive contact 1322; the second active contact assembly 23 can extend into the shield 11 through the second opening 111, and contact and electrically connect with the first passive contact 1311 and the second passive contact 1312.

Specifically, the passive contact assembly 13 further includes a first wire 133 and a second wire 134, the protective cover 11 is provided with a wire guide 135, the first wire 133 is inserted into the wire guide 135 and connected to the second passive contact 1312 through a screw 136 of the second passive contact 1312, and the second wire 134 is inserted into the wire guide 135 and connected to the fourth passive contact 1322 through a screw 136 of the fourth passive contact 1322; thus, when the first active contact assembly 32 and the second active contact assembly 23 are contacted with the passive contact assembly 13, an electrical circuit can be formed: the current enters the fourth passive contact 1322 through the second conducting wire 134, the fourth passive contact 1322 and the third passive contact 1321 are communicated through the first active contact assembly 32, the third passive contact 1321 is communicated with the first passive contact 1311, the first passive contact 1311 and the second passive contact 1312 are communicated through the second active contact assembly 23, and finally flow out of the first conducting wire 133 to form a loop. The structure is succinct, connects reliably, and the installation is maintained conveniently.

In the present application, the first passive contact 1311, the second passive contact 1312 and the second active contact assembly 23 are of a tab structure, the first passive contact 1311 and the second passive contact 1312 are arranged in a staggered manner from top to bottom in a step shape, and the corresponding second active contact assembly 23 has a step-shaped contact surface; impurities such as dust or small particles are not easily accumulated on the contacts, and dust accumulation on the contacts is avoided, so that the risk of poor contact of the door lock is avoided, and the reliability of the elevator door lock device 100 is greatly improved.

Referring to fig. 1, the middle door lock assembly 10 further includes a first fixing plate 51, the elevator door lock device 100 further includes a first hanger 52 connected to one elevator door and a second hanger 53 connected to another elevator door, the first fixing plate 51 is fixedly mounted on the headboard 50 of the elevator, the first hanger 52 and the second hanger 53 are movably mounted on the headboard 50 of the elevator, the first hanger 52 and the second hanger 53 are respectively located at two sides of the first fixing plate 51, and both the first hanger 52 and the second hanger 53 can move toward or away from the first fixing plate 51.

Further, the first latch 21 is movably mounted on the second hanger 53, the second active contact assembly 23 is mounted at one end of the first latch 21 close to the first fixing plate 51, and the first latch 21 and the second active contact assembly 23 can move towards a direction close to or away from the passive contact assembly 13 under the driving of the second hanger 53. Specifically, the first active contact assembly 32 is fixedly mounted on the first hanger 52, and can be moved toward or away from the passive contact assembly 13 by the first hanger 52.

Referring to fig. 1 and 2, the first latch 21 includes a second fixing plate 211 and a rotating latch hook 22, and the second active contact assembly 23 is connected to the rotating latch hook 22; the rotating latch hook 22 comprises a first latch hook 221, a fixed wheel 222 and a driving wheel 223, the second fixed plate 211 is connected with the second hanger 53, the first latch hook 221 is mounted on the second fixed plate 211 through an axle of the fixed wheel 222, the first latch hook 221 can rotate around the axle of the fixed wheel 222, the driving wheel 223 is mounted on the first latch hook 221 to drive the first latch hook 221 to rotate, a telescopic assembly 60 is abutted between the first latch hook 221 and the second fixed plate 211, and when the rotating latch hook 22 and the fixed latch hook 141 are mutually buckled, the telescopic assembly 60 is in a compressed state; the compression force of the telescopic assembly 60 can drive the first locking hook 221 to be locked with the fixed locking hook 141, and meanwhile, the second active contact assembly 23 is ensured to be tightly contacted with the passive contact assembly 13, so that the safety and the reliability are realized.

The second latch 14 includes a fixed latch hook 141, which is located outside the protection cover 11; the rotating latch hook 22 can rotate to be engaged with the fixed latch hook 141 outside the shield 11, and simultaneously the second active contact assembly 23 rotates to be in contact with the second passive contact unit 131.

Only the passive contact assembly 13 is arranged in the protective cover 11, the protective cover 11 only conducts on-off of an electrical loop, and mechanical on-off between the first lock catch 21 and the second lock catch 14 is conducted outside the protective cover 11, so that the protective performance is better, and the safety and the reliability are higher; the second lock catch 14 adopts a fixed lock hook 141, the first lock catch 21 adopts a rotating lock hook 22, and the second active contact assembly 23 is connected with the rotating lock hook 22, so that the mechanical locking of the first lock catch 21 and the second lock catch 14 and the electrical locking of the second active contact assembly 23 and the second passive contact unit 131 are simultaneously performed, the safety is better, the overall layout is reasonable, and the space is saved.

Further, the second active contact assembly 23 includes a second active contact 231 and a contact mounting base 232 connected to each other, the contact mounting base 232 is connected to the top end 2211 of the hook portion of the first lock hook 221, the top end 2211 of the hook portion is provided with a strip-shaped hole 2212, and the first lock hook 221 is connected to the top end 2211 of the hook portion by passing through the strip-shaped hole 2212 through a bolt 2213; the position of the second active contact 231 can be finely adjusted to ensure reliable contact with the passive contact assembly 13.

When the first active contact assembly 32 is electrically connected with the passive contact assembly 13 and the second active contact 231 is electrically connected with the passive contact assembly 13, the door lock electrical circuit is connected, accordingly, the rotating lock hook 22 and the fixed lock hook 141 are locked, and the elevator door cannot be opened; when the elevator door is opened, the rotating lock hook 22 and the fixed lock hook 141 are separated from each other, at this time, the first active contact assembly 32 and the passive contact assembly 13 are separated from each other, the second active contact 231 and the passive contact assembly 13 are separated from each other, and the electrical loop of the elevator door lock is disconnected, so that the safety of the elevator in the operation process can be ensured.

Specifically, the retraction assembly 60 is resilient. The two ends of the telescopic assembly 60 are respectively connected with the first locking hook 221 and the second fixing plate 211, when the first locking hook 221 rotates to enable the first locking hook 221 to be buckled with the fixing locking hook 141 and the second active contact 231 is electrically connected with the passive contact assembly 13, the telescopic assembly 60 is in a compressed state, and the restoring deformation force of the telescopic assembly 60, the gravity of the first locking hook 221 and the gravity of the second active contact 231 can enable the locking state of the first locking hook 221 and the fixing locking hook 141 to be more stable and firm; when the first locking hook 221 and the fixed locking hook 141 need to be separated, for example, under the action of a door vane of an elevator, the driving wheel 223 can drive the first locking hook 221 to rotate, and the telescopic assembly 60 is further compressed; when the elevator door vane does not act on the driving wheel 223, the driving wheel 223 does not drive the first locking hook 221 to rotate any more, and at this time, the restoring deformation force of the telescopic assembly 60, the gravity of the first locking hook 221 and the gravity of the second active contact 231 can enable the first locking hook 221 to rotate reversely, so that the first locking hook 221 is locked with the fixed locking hook 141.

The specific working principle is as follows:

opening an elevator door: the first hanger 52 and the second hanger 53 move in a direction away from the first fixing plate 51, and the first active contact assembly 32 originally in contact with the passive contact assembly 13 moves in a direction away from the passive contact assembly 13 under the driving of the first hanger 52, so that the first active contact assembly 32 is disconnected from the passive contact assembly 13; in addition, the second active contact 231 originally contacting the passive contact assembly 13 is driven by the first latch hook 221, and the second active contact 231 rotates around the fixed wheel 222 in a direction away from the passive contact assembly 13, so that the second active contact 231 is disconnected from the passive contact assembly 13, and meanwhile, the first latch hook 221 and the fixed latch hook 141 are unlocked; then, the second hanger 53 drives the first latch hook 221, that is, the second hanger 53 drives the second active contact 231 to move away from the passive contact assembly 13.

Closing the elevator door: the first hanger 52 and the second hanger 53 move towards the direction close to the first fixing plate 51, and the first active contact assembly 32 moves towards the direction close to the passive contact assembly 13 under the driving of the first hanger 52, so that the first active contact assembly 32 is electrically connected with the passive contact assembly 13; under the driving of the second hanger 53, the second active contact 231 moves toward the direction close to the passive contact assembly 13, so that the second active contact 231 extends into the protective cover 11 from the second opening 111, and the second active contact 231 is electrically connected to the passive contact assembly 13, and meanwhile, the first locking hook 221 and the fixed locking hook 141 are locked to each other.

Referring to fig. 4 and 5, the first active contact assembly 32 includes a mounting plate 314 connected to the elevator door and an elastic contact structure 31, one end of the elastic contact structure 31 is connected to the mounting plate 314, and the other end of the elastic contact structure 31 can be driven by the mounting plate 314 to extend into the protection cover 11 through the first opening 112 and press and contact the first passive contact unit 132.

The first active contact assembly 32 is in elastic contact with the passive contact assembly 13, so that the problems of relative operation and abrasion of the first active contact assembly 32 and the passive contact assembly 13 during contact can be avoided; when the first active contact assembly 32 is in elastic contact with the passive contact assembly 13, the first active contact assembly 32 can be tightly attached to the passive contact assembly 13 through the elastic force generated by elastic deformation and is electrically connected with the passive contact assembly 13 stably, so that abrasion caused by relative operation between the first active contact assembly 32 and the passive contact assembly 13 is avoided, the contact stability is improved, and the reliability of the elevator door lock device 100 is improved; the elastic contact structure 31 can be driven by the mounting plate 314 to extend into the protective cover 11, and along with the process that the mounting plate 314 extends into the protective cover 11, the elastic contact structure 31 is extruded, and the elastic force generated when the elastic contact structure 31 is compressed can enable the elastic contact structure 31 to be contacted with the passive contact assembly 13 more tightly.

Further, with reference to fig. 4 and fig. 5, the elastic contact structure 31 includes a first active contact 311 and an elastic element 312, the first active contact 311 is movably mounted on the mounting plate 314, the elastic element 312 is sleeved on the first active contact 311, one end of the elastic element 312 abuts against the mounting plate 314, the other end abuts against the first active contact 311, and the first active contact 311 can extend into the shield 11 to contact and electrically connect with the passive contact assembly 13; when the first active contact 311 extends into the shield 11 and contacts with the passive contact assembly 13, the elastic member 312 is pressed under the action of the first active contact 311 and the mounting plate 314, and the elastic force generated by compression can make the first active contact 311 and the passive contact assembly 13 contact more tightly, so that the problem of abrasion caused by relative operation is avoided.

In the present application, an end of the first active contact 311 away from the mounting plate 314 has a conducting contact 3116, and the conducting contact 3116 can be in contact fit with the passive contact assembly 13 to electrically connect the first active contact 311 with the passive contact assembly 13.

Specifically, the first active contact 311 further includes a connecting portion 3111 and a conducting portion 3112, the connecting portion 3111 is movably connected to the mounting plate 314, the elastic member 312 is sleeved on the connecting portion 3111 and can abut against between the mounting plate 314 and the conducting portion 3112, and the conducting portion 3112 is used for matching with the first passive contact unit 132. The conducting part 3112 can stretch into the protection casing 11 and contact and be connected electrically with passive contact subassembly 13, and when the conducting part 3112 stretches into the protection casing 11 and contact with passive contact subassembly 13 in-process, the elastic component 312 is extruded under the effect of conducting part 3112 and mounting panel 314, and the produced elastic force of compression can make conducting part 3112 and passive contact subassembly 13 contact ground inseparabler to improve the stability of contact.

Further, in an embodiment, the connection portion 3111 has at least two elastic arms 3113, the mounting plate 314 is provided with a mounting hole 3141, the at least two elastic arms 3113 are inserted into the mounting hole 3141 and can move in the mounting hole 3141, and the at least two elastic arms 3113 can be close to each other under the external force, so that the first active contact 311 is mounted on the mounting plate 314 conveniently, and the mounting structure is simple and convenient, and has a low cost.

Specifically, one end of each elastic arm 3113 is provided with an inverted buckle 3114, and the inverted buckle 3114 penetrates through the mounting hole 3141 along with the elastic arm 3113 and abuts against one side surface of the mounting plate 314 away from the elastic element 312; the inverted buckle 3114 can prevent the elastic arm 3113 from falling off from the mounting hole 3141, and the stability of connection between the elastic arm 3113 and the mounting plate 314 is improved.

Preferably, a guide portion 3115 is provided at one end of the elastic arm 3113 having the inverted portion 3114, and the guide portion 3115 can guide the installation of the inverted portion 3114 to smoothly install the inverted portion 3114 on the installation plate 314.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present specification as long as there is no contradiction between the combinations of the features.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims (10)

1. An elevator door lock device comprises a middle door lock component, a first door lock component moving along with one elevator door and a second door lock component moving along with the other elevator door, and is characterized in that the middle door lock component comprises a protective cover, a passive contact component and a second lock catch, the first door lock component comprises a first active contact component, and the second door lock component comprises a first lock catch and a second active contact component; a first opening and a second opening are respectively formed in two sides of the protective cover, the passive contact assembly is mounted in the protective cover, the first active contact assembly is located on one side, provided with the first opening, of the protective cover, and the second active contact assembly is located on one side, provided with the second opening, of the protective cover; when the two elevator doors are closed in place, the second lock catch and the first lock catch are locked with each other, part of the first active contact assembly can extend into the protective cover from the first opening and is in contact and electric connection with the passive contact assembly, and part of the second active contact assembly can extend into the protective cover from the second opening and is in contact and electric connection with the passive contact assembly.

2. The elevator door lock device of claim 1, wherein the passive contact assembly includes a first passive contact unit disposed proximate to the first opening and a second passive contact unit disposed proximate to the second opening; the first active contact assembly can extend into the protective cover to be contacted with the first passive contact unit, and the second active contact assembly can extend into the protective cover to be contacted with the second passive contact unit.

3. The elevator door lock device of claim 2, wherein the second passive contact unit includes a first passive contact and a second passive contact spaced apart within the protective cover; the first passive contact unit comprises a third passive contact and a fourth passive contact, and the third passive contact and the fourth passive contact are arranged in the protective cover at intervals; the first passive contact and the third passive contact are connected with each other, and the fourth passive contact and the second passive contact are arranged at intervals; the passive contact assembly further comprises a first lead and a second lead, the first lead is connected with the second passive contact, and the second lead is connected with the fourth passive contact.

4. The elevator door lock device of claim 2, wherein the first active contact assembly comprises a mounting plate connected to the elevator door and an elastic contact structure, one end of the elastic contact structure is connected to the mounting plate, and the other end of the elastic contact structure is capable of being driven by the mounting plate to extend into the protective cover through the first opening and press-contact the first passive contact unit.

5. The elevator door lock device according to claim 4, wherein the elastic contact structure includes a connecting portion movably connected to the mounting plate, a conduction portion sleeved on the connecting portion and capable of abutting between the mounting plate and the conduction portion, and an elastic member for engaging with the first passive contact unit.

6. The elevator door lock device according to claim 5, wherein the connecting portion has at least two resilient arms, the mounting plate has a mounting hole, the at least two resilient arms are inserted into the mounting hole and can move in the mounting hole, and the at least two resilient arms can approach each other under an external force; every the one end of bullet arm is equipped with the back-off, the back-off is followed the bullet arm is worn to establish the mounting hole, and with the mounting panel is kept away from a side of elastic component supports and leans on.

7. The elevator door lock device of claim 2, wherein the secondary catch includes a fixed catch located outside the protective cover; the first lock catch comprises a rotating lock hook, and the second active contact assembly is connected with the rotating lock hook; the rotating lock hook can rotate to be buckled with the fixed lock hook outside the protective cover, and meanwhile, the second active contact assembly rotates to be in contact with the second passive contact unit.

8. The elevator door lock device according to claim 7, wherein the first latch further comprises a second fixing plate, the rotating latch comprises a first latch hook, a fixing wheel and a driving wheel, the second fixing plate is connected with the elevator door, the first latch hook is mounted on the second fixing plate through an axle of the fixing wheel, the first latch hook can rotate around the axle of the fixing wheel, the driving wheel is mounted on the first latch hook to drive the first latch hook to rotate, a telescopic component is abutted between the first latch hook and the second fixing plate, and when the rotating latch hook and the fixing latch hook are mutually latched, the telescopic component is in a compressed state.

9. The elevator door lock device according to claim 8, wherein the second active contact assembly comprises a second active contact and a contact mounting seat connected to each other, the contact mounting seat is connected to a top end of the hook portion of the first latch hook, the top end of the hook portion is provided with a strip-shaped hole, and the first latch hook is connected to the top end of the hook portion by passing a bolt through the strip-shaped hole.

10. The elevator door lock device of claim 3, wherein the first and second passive contacts and the second active contact assembly are of a snap-on construction, the first and second passive contacts being arranged in a step-like arrangement, the respective second active contact assembly having a step-like contact surface.

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