CN111453574A - Elevator door lock meshing length measuring device and method - Google Patents

Abstract

The invention discloses an elevator door lock meshing length measuring device and method, wherein the elevator door lock meshing length measuring device comprises: bottom plate, fixed establishment, control indication module and measuring component. The fixing mechanism is arranged on the front end face of the bottom plate and used for fixedly connecting the rear end face of the bottom plate with a landing door of an elevator. And the control indication module is arranged on the front end surface of the bottom plate and used for detecting and displaying the on-off state of a door lock loop of the landing door. And the measuring assembly is arranged on one side of the front end surface of the bottom plate and can move up and down relative to the bottom plate, and is used for acquiring the meshing length value of the landing door. According to the elevator door lock meshing length measuring device of the technical scheme, the measuring device can be conveniently and quickly fixedly connected with or separated from a landing door, the control indicating module can display the on-off state of the door lock loop, the measuring result is accurate, the measuring component can accurately read the meshing length of the landing door, the use is convenient, and the measuring precision is high.

Description

Elevator door lock meshing length measuring device and method

Technical Field

The invention relates to the field of elevator detection devices, in particular to an elevator door lock meshing length measuring device and an elevator door lock meshing length measuring method.

Background

When the elevator landing door is closed and the door lock closed loop is communicated, the meshing length of the elevator landing door lock during closing needs to be within a certain threshold range, otherwise the landing door can be closed insecurely, and potential safety hazards can be caused. Similarly, when the elevator landing door is opened, and the closed loop of the door lock is disconnected, the meshing length of the door lock of the elevator landing door in the disconnection process also needs to be within a certain threshold value range, and the normal opening of the elevator landing door is ensured.

The traditional measuring method uses a steel ruler for measurement, and is low in precision and low in universality. And a displacement sensor is adopted in part of measuring methods, so that the testing cost is high.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the elevator door lock meshing length measuring device which can conveniently measure the meshing length of the landing door of the elevator door lock, and has the advantages of higher measuring precision, simple structure and lower cost.

The invention also provides an elevator door lock engagement length measuring method using the elevator door lock engagement length measuring device.

In a first aspect, an elevator door lock engagement length measuring device according to an embodiment of the present invention includes: a base plate; the fixing mechanism is arranged on the front end face of the bottom plate and used for fixedly connecting the rear end face of the bottom plate with a landing door of an elevator; the control indication module is arranged on the front end surface of the bottom plate and used for detecting and displaying the on-off state of a door lock loop of the landing door; and the measuring component is arranged on one side of the front end surface of the bottom plate and can move up and down relative to the bottom plate, and is used for acquiring the meshing length value of the landing door.

The elevator door lock meshing length measuring device provided by the embodiment of the invention at least has the following beneficial effects: the measuring device is fixed at a proper position on the landing door by using a fixing mechanism, then the measuring component is connected with a movable lock hook of the landing door of the elevator, and finally the control indication module is connected with a door lock loop of the elevator. During measurement, the movable lock hook is gradually pressed down to drive the measuring assembly to move until the control indicating module sends out a communication indication, and the reading of the measuring assembly is the meshing length of the door lock. Fixing device can convenient and fast ground with measuring device and layer door fixed connection or separation, and the control indicating module can show the break-make state in lock return circuit, guarantees that measuring result is accurate, and measuring component can read out the length of layer door meshing accurately, convenient to use, and measurement accuracy is high.

According to some embodiments of the invention, the measurement assembly comprises: the scale is capable of reciprocating along the supporting piece; the graduated scale upper end cover is equipped with measures the piece, the lower extreme of graduated scale is provided with zero set mechanism support piece with it is equipped with the compression elastic component to measure between the piece.

According to some embodiments of the invention, the securing mechanism is a magnetic mount.

According to some embodiments of the invention, the control indication module comprises: the box body is arranged on the bottom plate and forms a closed space with the bottom plate; a power supply disposed in the enclosed space; the indicating lamp is arranged on the box body and is electrically connected with the power supply; the current sensor comprises a clamp and a contact, the clamp is electrically connected with the power supply, the contact is connected between the power supply and the indicator lamp in series, and the clamp can extend out of the box body for a certain distance.

According to some embodiments of the invention, the graduated scale is provided with threads at both ends, and the measuring piece is fixed on the graduated scale through a fixing nut matched with the threads.

According to some embodiments of the invention, the zero set mechanism comprises a first zero set nut and a second zero set nut that mate with the threads.

According to some embodiments of the invention, the scale further comprises a fine adjustment mechanism, the support is connected with the bottom plate in a sliding mode through the fine adjustment mechanism, and the support can move in a reciprocating mode in the movement direction of the scale under the driving of the fine adjustment mechanism.

The fine adjustment mechanism comprises a screw pair, a guide sliding rail and a guide sliding block, the support piece is connected with the screw pair in a sliding mode, through holes for the sliding block to penetrate through are formed in supports at two ends of the screw pair, a rotating handle is arranged at one end of a screw rod of the screw pair, the guide sliding rail is arranged on the bottom plate, the guide sliding block is slidably arranged on the guide sliding rail, and the guide sliding block is connected with the support piece.

In a second aspect, an engagement length measuring method of an elevator door lock according to an embodiment of the present invention includes the steps of:

zero setting: zeroing the graduated scale and fixing a zeroing result;

fixing and fine-tuning: fixing the bottom plate on a proper position of a landing door of the elevator, and enabling the upper end surface of the measuring sheet to be flush with the upper end surface of a fixed lock hook of the landing door of the elevator;

a connection control indication module: clamping a clamp of a current sensor in a control indication module on any one wire in a door lock loop of an elevator;

closed engagement length measurement: the movable lock hook of the landing door of the elevator is driven to gradually move towards the fixed lock hook, and the measuring sheet is pushed to move until the control indicating module indicates that the door lock loop is conducted, and at the moment, the scale value on the graduated scale corresponding to the end face of the supporting piece is the closing meshing length;

measuring the disengagement length: and continuously driving the movable lock hook of the landing door of the elevator to move for a certain distance in the direction of the fixed lock hook, and then driving the movable lock hook to gradually move in the direction back to the fixed lock hook until the control indication module indicates that the door lock loop is disconnected, wherein the scale value on the scale corresponding to the end surface of the support piece is the disconnection meshing length.

According to some embodiments of the invention, the step of fixed fine tuning comprises:

fixing: fixing the bottom plate on a landing door of an elevator, so that a certain distance exists between the measuring sheet and a movable lock hook of the landing door of the elevator;

fine adjustment: the supporting piece is driven to move through the fine adjustment mechanism until the upper end face of the measuring piece is flush with the upper end face of the fixed lock hook.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic side view of an embodiment of the present invention;

FIG. 3 is a schematic view of the bottom structure of FIG. 2;

FIG. 4 is a schematic diagram of a backside structure according to an embodiment of the present invention;

FIG. 5 is a schematic view of a usage state of the embodiment of the present invention;

fig. 6 is a schematic diagram of the operation of the control indication module according to the embodiment of the present invention.

Reference numerals:

the base plate 100 is provided with a plurality of grooves,

the fixing means (200) is provided with,

a control indication module 300, an indicator light 310, a current sensor 320,

the support member 400 is provided at a position corresponding to the direction of the rotation of the rotary shaft,

the scale 500, the measuring blade 510,

the elastic member 600 is compressed and the elastic member 600 is compressed,

a zero set mechanism 700, a first zero set nut 710, a second zero set nut 720,

fine adjustment mechanism 800, screw pair 810, bracket 811, slider 812, rotary handle 820, guide slide 830, guide slider 831,

the movable latch hook 900 fixes the latch hook 910.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, the device for measuring the engagement length of an elevator door lock according to an embodiment of the present invention includes a base plate 100, a fixing mechanism 200 disposed on the base plate 100, a control indication module 300, and a measuring assembly. The fixing mechanism 200 is disposed on the front end surface of the bottom plate 100, and is used to fixedly connect the landing doors of the rear end surface elevator of the measuring device, and may be fixed by clamping, adsorption, or the like. The control indication module 300 is used for detecting and displaying the on-off condition of a door lock loop of a landing door of an elevator, when the door lock is meshed, the door lock loop can be conducted, when the door lock is separated, the door lock loop can be disconnected, and when the door lock loop is conducted in the actual elevator running process, the meshing length of the door lock needs to be larger than a certain threshold value. The measuring component is arranged on the front end face of the bottom plate 100, can move up and down relative to the bottom plate 100, is connected with the movable lock hook 900 of the landing door during use, and measures the meshing length value of the landing door by obtaining the moving distance of the movable lock hook. During measurement, the movable lock hook is gradually pressed down to drive the measuring assembly to move until the control indicating module sends out a communication indication, and the reading of the measuring assembly is the meshing length of the door lock. The installation is convenient, the measurement steps are simple and the measurement precision is high. It is understood that the control and indication module 300 may use an audio signal or a visual signal to indicate the on/off state of the door lock circuit.

Referring to fig. 1 and 5, in some embodiments, the measuring assembly includes a support 400 disposed on the base plate 100 and a scale 500 disposed in the support, and the scale 500 is capable of reciprocating in the support 400 along the support 400. One end of the graduated scale 500 is provided with scales, and one end provided with scales is also sleeved with a measuring sheet 510. The other end of the graduated scale 500 is provided with a zero setting mechanism 700, and the zero setting mechanism 700 can adjust the maximum length of the graduated end of the graduated scale 500 extending out of the support 400 and fix the adjustment result. One end of the compression elastic member 600 is connected with the measuring piece 510, and the other end is connected with the supporting member 400, and is used for driving one end of the graduated scale 500 with the graduation to move towards the direction away from the supporting member 400, so that the measuring piece 510 can keep contact with the movable lock hook 900 of the landing door, and the function of measuring the meshing moving length of the movable lock hook 900 is realized. It can be understood that the support 400 may be a solid structure with a through hole in the middle for passing through the scale 500, or a frame structure with through holes at both ends and a hollow interior.

Referring to fig. 1, in some embodiments, the elevator door lock engagement length measuring apparatus further includes a fine adjustment mechanism 800, the support 400 is slidably connected to the base plate 100 through the fine adjustment mechanism 800, and the support 400 is reciprocally movable in a direction of a through hole of the support 400 by the fine adjustment mechanism 800. When the measuring device is used, the measuring device can be fixed at a certain distance from the movable lock hook 900, the position of the supporting piece 400 is adjusted through the fine adjustment mechanism 800, the measuring piece 510 approaches to the movable lock hook 900 along with the supporting piece 400 until the two are attached, no pressure contact is realized between the measuring piece 510 and the movable lock hook 900, and the measuring precision is further improved. It will be appreciated that the fine adjustment mechanism 800 may be a relatively high precision linear drive mechanism, such as a rack or ball screw.

Referring to fig. 6, in some embodiments, the principle of the control indication module 300 is as shown in the figure, a power supply, an indicator lamp 310 and a current sensor 320 are disposed in a box body of the control indication module 300, wherein the current sensor 320 detects whether there is current in a door lock loop by using an electromagnetic induction method to determine whether the door lock loop is on or off. The current sensor 320 comprises a clamp and a contact, the clamp is used for being clamped on a lead of the door lock loop and detecting a magnetic field on the door lock loop to detect whether current exists in the door lock loop, and the electric shock of the current sensor 320 is connected into a loop formed by connecting a power supply and the indicator lamp 310 in series, so that the on and off of the indicator lamp 310 can be controlled through the on and off of the electric shock. When the current sensor 320 detects current in the door lock loop, the shock closure lights the indicator light 310; when the current sensor 320 does not detect current in the door lock loop, the shock disconnect causes the indicator light 310 to extinguish. The control indication module 300 does not need to be connected with the door lock loop to form a loop by using the detection mode, only needs to be clamped on any wire in the door lock loop by using a clamp, is convenient and practical, and cannot damage the door lock loop. It is understood that the power source can independently provide power to the current sensor 320 and the indicator light 310, or can be connected to an external voltage to convert the external voltage into power that can be used by the current sensor 320 and the indicator light 310. It is understood that the indicator lamp 310 may be replaced with a buzzer.

The elevator door lock engagement length measuring device according to the embodiment of the first aspect of the present invention may measure the door lock engagement length of the elevator by using the following elevator door lock engagement length measuring method, including the specific steps of:

zero setting: zeroing the graduated scale and fixing a zeroing result;

fixing and fine-tuning: fixing the bottom plate on the proper position of the landing door of the elevator, so that the upper end surface of the measuring sheet 510 is flush with the upper end surface of the fixed lock hook 910 of the landing door of the elevator;

a connection control indication module: clamping the clamp of the current sensor 320 in the control and indication module 300 on any wire in the door lock loop of the elevator;

closed engagement length measurement: the movable lock hook 900 of the landing door of the elevator is driven to gradually move towards the fixed lock hook 910, and contacts with the measuring sheet 510 and pushes the measuring sheet 510 to move until the control indication module 300 indicates that the door lock loop is conducted, and at this time, the scale value on the scale 500 corresponding to the end surface of the support 400 is the closing engagement length;

measuring the disengagement length: the movable locking hook 900 of the landing door of the elevator is continuously driven to move a certain distance towards the fixed locking hook 910, and then the movable locking hook 900 is driven to gradually move towards the direction back to the fixed locking hook 910 until the control indication module 300 indicates that the door lock loop is disconnected, and at this time, the scale value on the scale corresponding to the end surface of the support 400 is the disconnection engagement length.

It can be understood that, in order to ensure the accuracy of the measured data, the moving speed of the movable locking hook 900 during the process of measuring the closing engagement length and the opening engagement length should be less than the division value per second of the graduated scale 500, and the read scale value is the scale value when the door lock loop is connected and disconnected.

In some embodiments, to further improve the measurement accuracy, the fixing fine adjustment step comprises:

fixing: fixing the bottom plate on the landing door of the elevator, so that a certain distance exists between the measuring sheet 510 and the movable lock hook 900 of the landing door of the elevator;

fine adjustment: the support 400 is driven to move by the fine adjustment mechanism 700 until the upper end surface of the measuring chip 510 comes into contact with the upper end surface of the fixing latch 910.

By adopting the fixing and fine-tuning method, the upper end surface of the measuring piece 510 can be flush with the upper end surface of the fixing lock hook 910, the precision of the initial measuring position is ensured, and the measuring precision of the meshing length is improved.

An elevator door lock engagement length measuring apparatus according to an embodiment of the present invention will be described in detail in a specific embodiment with reference to fig. 1 to 6. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.

Referring to fig. 1 and 4, in the present embodiment, the fixing mechanism 200 includes a magnetic base, and the bottom plate 100 is provided with a rectangular through hole for installing the magnetic base, and the magnetic base is embedded in the rectangular through hole. The measuring device can be adsorbed on the landing door by rotating the knob of the magnetic seat. The support 400 is a solid sliding sleeve with a cylindrical through hole therein, and the scale 500 is a cylinder fitted with the through hole. Both ends of the graduated scale 500 are provided with threads, the measuring piece 510 is a spring piece, and the measuring piece 510 is fixed on the graduated scale 500 through the nut matched with the threads at one end of the graduated scale 500. The compression elastic member 600 is a compression spring, and is sleeved on the scale 500, one end of the compression elastic member abuts against the measuring plate 510, the other end of the compression elastic member abuts against the end surface of the supporting member 400, and the compression elastic member is kept in a compression deformation state under the action of the zeroing mechanism 700.

Referring to fig. 2, in the present embodiment, the zero-setting mechanism 700 includes a first zero-setting nut 710 and a second zero-setting nut 720, and the two zero-setting nuts are sequentially sleeved on an end of the scale 500 opposite to the measuring piece 510. The second zero nut 720 is loosened to prevent the first zero nut 710 from being positionally displaced, and the zero result is maintained. The first zero adjustment nut 710 is used to adjust the length of the end of the scale 500 with scale extending out of the supporting member 400, so as to achieve the zero adjustment effect. During the use, rotatory second zero set nut 720 makes it separate with first zero set nut 710, rotates first zero set nut 710 again, because the both ends of scale 500 are all by the screw thread, first zero set nut 710 can change its position on scale 500 through the screw thread on scale 500, and first zero set nut 710 offsets with the terminal surface of support piece 400 under the effect of compression elastic component 600, so change first zero set nut 710 and can adjust the one end that scale 500 has and stretch out the maximum length of support piece 400 at the position of scale 500. By adjusting the position of the first zero nut 710, the zero scale line of the scale 500 is just flush with the end surface of the support 400, and zero setting can be achieved. After the adjustment is completed, the second zero adjustment nut 720 is rotated to fit the first zero adjustment nut 710, thereby fixing the adjustment result.

Referring to fig. 1 to 3, in the present embodiment, the fine adjustment mechanism 800 includes a screw pair 810, a guide rail 830, and a guide slider 831 slidably disposed on the guide rail 830. The lead screw of the lead screw pair 810 is disposed on the bottom plate 100 through the bracket 811, and the bracket 811 is provided with a rectangular through hole for the support 400 to pass through, so as to avoid obstructing the movement of the support 400, as shown in fig. 3. One end of the screw rod pair 810 is provided with a rotating handle 820, and the screw rod can be driven to rotate relative to the bracket 811 by rotating the rotating handle 820. The sliding block 812 of the screw pair 810 is connected with the supporting member 400, and when the handle 820 is rotated, the supporting member 400 is driven by the sliding block 812 of the screw pair 810 to move along the screw direction, so that the fine adjustment of the position of the supporting member 400 is realized, and the measuring piece 510 can be in non-pressure contact with the movable locking hook 900. Referring to fig. 2, the guide rail 830 is disposed on the base plate 100, and the installation direction thereof is the same as the screw direction. The guide slider 831 is connected to the support member 400, and the guide slider 831 can move along the guide rail 830 with the support member 400. The guide rail 830 and the guide slider 831 can ensure the moving direction of the slider 812 and the precision of fine adjustment.

Referring to fig. 1 and 6, in the present embodiment, the control indication module 300 uses an optical signal to indicate the on/off of the door lock loop, and when the door lock loop is turned on, the indicator lamp 310 is turned on; when the door lock circuit is opened, the indicator lamp 310 is turned off. The indicator lamp 310 is provided on the case of the control indication module 300. The power supply is a switching power supply, and an interface (not shown in the figure) for connecting the switching power supply with external voltage is arranged on the box body of the control indication module 300. The clamp (not shown in fig. 1) of the current sensor 320 is connected to the power supply and indicator lamp 310 inside the control and indicator module 300 through a wire.

The elevator door lock meshing length measuring device provided by the embodiment of the invention can be conveniently fixed at a proper position on an elevator landing door. The zero calibration device is provided with the zero calibration mechanism and the fine tuning mechanism, the zero calibration function can be realized, the measuring sheet can be in pressure-free contact with the movable lock hook, the control indication module can detect the on-off state of the door lock loop without being directly connected with the door lock loop, and the zero calibration device is convenient to use and simple in structure.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. An elevator door lock engagement length measuring device, comprising:

a base plate;

the fixing mechanism is arranged on the front end face of the bottom plate and used for fixedly connecting the rear end face of the bottom plate with a landing door of an elevator;

the control indication module is arranged on the front end surface of the bottom plate and used for detecting and displaying the on-off state of a door lock loop of the landing door;

and the measuring component is arranged on one side of the front end surface of the bottom plate and can move up and down relative to the bottom plate, and is used for acquiring the meshing length value of the landing door.

2. The elevator door lock engagement length measuring device of claim 1, wherein the measuring assembly comprises: the scale is capable of reciprocating along the supporting piece; the graduated scale upper end cover is equipped with measures the piece, the lower extreme of graduated scale is provided with zero set mechanism support piece with it is equipped with the compression elastic component to measure between the piece.

3. The elevator door lock engagement length measuring device of claim 1, wherein the securing mechanism is a magnetic seat.

4. The elevator door lock engagement length measuring device according to claim 1, wherein the control indicating module includes:

the box body is arranged on the bottom plate and forms a space with the bottom plate;

a power supply disposed in the space;

the indicating lamp is arranged on the box body and is electrically connected with the power supply;

the current sensor comprises a clamp and a contact, the clamp is electrically connected with the power supply, the contact is connected between the power supply and the indicator lamp in series, and the clamp can extend out of the box body for a certain distance.

5. The elevator door lock engagement length measuring device according to claim 2, wherein the scale is provided with screw threads at both ends, and the measuring piece is fixed to the scale by a fixing nut matching with the screw threads.

6. The elevator door lock engagement length measuring device of claim 5, wherein the zero set mechanism includes a first zero set nut and a second zero set nut that mate with the threads.

7. The elevator door lock engagement length measuring device according to claim 2, further comprising a fine adjustment mechanism, the support member being slidably connected to the base plate through the fine adjustment mechanism, the support member being reciprocally movable in a movement direction of the scale by being driven by the fine adjustment mechanism.

8. The elevator door lock engagement length measuring device according to claim 7, wherein the fine adjustment mechanism includes a screw pair, a guide rail, and a guide slider, the support member is connected to the slider of the screw pair, through holes for the slider to pass through are provided on the brackets at both ends of the screw pair, a rotating handle is provided at one end of the screw pair, the guide rail is provided on the bottom plate, the guide slider is slidably provided on the guide rail, and the guide slider is connected to the support member.

9. The elevator door lock engagement length measuring method of the elevator door lock engagement length measuring device according to any one of claims 1 to 8, comprising the steps of:

zero setting: zeroing the graduated scale and fixing a zeroing result;

fixing and fine-tuning: fixing the bottom plate on a proper position of a landing door of the elevator, and enabling the upper end surface of the measuring sheet to be flush with the upper end surface of a fixed lock hook of the landing door of the elevator;

a connection control indication module: clamping a clamp of a current sensor in a control indication module on any one wire in a door lock loop of an elevator;

closed engagement length measurement: the movable lock hook of the landing door of the elevator is driven to gradually move towards the fixed lock hook, and the measuring sheet is pushed to move until the control indicating module indicates that the door lock loop is conducted, and at the moment, the scale value on the graduated scale corresponding to the end face of the supporting piece is the closing meshing length;

measuring the disengagement length: and continuously driving the movable lock hook of the landing door of the elevator to move for a certain distance in the direction of the fixed lock hook, and then driving the movable lock hook to gradually move in the direction back to the fixed lock hook until the control indication module indicates that the door lock loop is disconnected, wherein the scale value on the scale corresponding to the end surface of the support piece is the disconnection meshing length.

10. The elevator door lock engagement length measuring method according to claim 9, wherein the fixing fine-tuning step includes:

fixing: fixing the bottom plate on a landing door of an elevator, so that a certain distance exists between the measuring sheet and a movable lock hook of the landing door of the elevator;

fine adjustment: the supporting piece is driven to move through the fine adjustment mechanism until the upper end face of the measuring piece is flush with the upper end face of the fixed lock hook.

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