CN214192135U

CN214192135U - Elevator safety tongs test device

Info

Publication number: CN214192135U
Application number: CN202023311969.0U
Authority: CN
Inventors: 刘兆辉; 李显斌
Original assignee: Winone Elevator Co Ltd
Current assignee: Winone Elevator Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-14
Anticipated expiration: 2030-12-30

Abstract

The utility model provides an elevator safety gear testing device, which comprises a supporting frame, a lifting driving mechanism, a car frame, a measuring device and a safety gear linkage system; the safety gear linkage system comprises a safety gear lifting mechanism, a safety gear device and a speed limiter device; the lifting driving mechanism is arranged at the upper end of the support frame; the car frame is arranged on the support frame in a sliding manner along the vertical direction and is connected with the output end of the lifting driving mechanism; the measuring device is arranged at the lower end of the support frame; the safety gear lifting mechanism is arranged above one side of the car frame; the two safety gear devices are arranged and are respectively arranged on two sides below the car frame; the speed limiter device is arranged on the supporting frame and is connected with the safety gear lifting mechanism through a speed limiting steel wire rope; the utility model discloses the dismouting is simple convenient, and the examination result of numeralization testing arrangement makes the examination result more directly perceived and accurate.

Description

Elevator safety tongs test device

Technical Field

The utility model relates to a technical field of the test device of safety tongs, especially an elevator safety tongs test device.

Background

Safety tongs are the safety arrangement of elevator. When the running speed of the elevator exceeds the set speed of the speed limiter or the suspension rope is broken and loosened to cause the stalling of the elevator car, the safety gear device is linked with the speed limiter to emergently brake the elevator car and clamp the elevator car on the guide rail, and the safety gear device provides effective protection effect for the safe running of the elevator and is generally arranged on a car frame or a counterweight frame; the front safety gear is still the most important safety part in the elevator, and the safety of the elevator can be ensured only if the safety gear is ensured to be safe and effective. Meanwhile, in the elevator inspection process, the linkage test of the elevator speed limiter and the safety tongs is one of the items which need to be inspected, and the linkage test is a way for ensuring the safety tongs to reliably act, wherein the speed limiter belongs to an action triggering mechanism, and the safety tongs belong to an action executing mechanism.

At present, in the installation teaching of safety tongs device, the traditional teaching mode of old staff adopts the face to give, lacks the system training to first installation debugging personnel often can have not synchronous and eccentric problem when both sides safety tongs move, lead to guide rail wearing and tearing and car to warp, cause the elevator to have the potential safety hazard.

Therefore, a teaching device and an examination method are needed for elevator students to learn and examine, the traditional judgment by the experience of technicians is replaced by numerical control, the synchronism check during the action of the safety tongs at two sides is detected, and the installation capability of installation and debugging personnel is ensured, so that the stable work of the safety tongs device is improved, and the safety performance of the elevator is improved.

SUMMERY OF THE UTILITY MODEL

To the above defect, the utility model discloses an aim at provides an elevator safety tongs testing device, and the dismouting is simple convenient, through measuring device numeralization examination result makes the examination result more directly perceived and accurate, is favorable to improving installation and debugging personnel's the installation ability to improve the security performance of elevator.

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

an elevator safety gear testing device comprises a supporting frame, a lifting driving mechanism, a car frame, a measuring device and a safety gear linkage system; the safety gear linkage system comprises a safety gear lifting mechanism, a safety gear device and a speed limiter device; the lifting driving mechanism is arranged at the upper end of the support frame; the car frame is arranged on the support frame in a sliding manner along the vertical direction and is connected with the output end of the lifting driving mechanism; the measuring device is arranged at the lower end of the support frame; the safety gear lifting mechanism is arranged above one side of the car frame; the two safety gear devices are arranged and are respectively arranged on two sides below the car frame; the speed limiter device is arranged on the supporting frame and is connected with the safety tongs lifting mechanism through a speed limiting steel wire rope.

Preferably, the measuring device comprises four laser range finders, and the four laser range finders are arranged at least at four end points of the bottom of the support frame respectively.

Preferably, the measuring device further comprises a time recorder, the two safety gear devices are respectively provided with the time recorder, and the time recorder is triggered to start timing when the safety gear devices operate.

Preferably, the bottom of the car frame is provided with a distance measuring bottom beam, and the distance measuring bottom beam is provided with a distance measuring mark corresponding to the laser distance measuring instrument in the vertical direction.

Preferably, a tension wheel is arranged below the supporting frame, and the speed-limiting steel wire rope is wound on the tension wheel.

Preferably, the inner side of the support frame is provided with a guide rail, two sides of the car frame are provided with a guide shoe and an oil cup, and the guide shoe is slidably arranged on the guide rail.

Preferably, the inboard of support frame is equipped with the end sign indicating number and presses the sign indicating number, the end sign indicating number set up in the inboard of support frame, press the sign indicating number set up in the end sign indicating number, the guide rail set up in press the sign indicating number with between the end sign indicating number, press the sign indicating number will the guide rail compress tightly in the end sign indicating number.

Preferably, the support frame comprises a portal frame and a stabilizing frame, and the lifting driving mechanism is arranged at the top end of the portal frame; the stabilizer bar includes sill bar and bracing piece, the sill bar set up in portal frame ground bottom, the one end of bracing piece set up in the end of sill bar, the other end set up in the portal frame, the bracing piece with the sill bar is 45 contained angles and sets up.

Preferably, the lifting driving mechanism comprises a winch and a lifting steel wire rope, the winch is fixedly arranged at the top of the support frame, one end of the lifting steel wire rope is connected with the output end of the winch, and the other end of the lifting steel wire rope is connected with the car frame.

The utility model has the advantages that:

1. the elevator safety gear testing device provided by the utility model has the advantages of compact structure, effective saving of testing space, simple and convenient installation and testing, and elevator personnel can skillfully master the installation data thereof by repeatedly disassembling and installing the safety gear linkage device, thereby improving the installation level;

2. the safety gear linkage system installation data can be obtained by the measuring device, the installation of the safety gear linkage system by a student can be intuitively reflected, the safety gear linkage system meets the requirements, the data test result replaces the traditional judgment by the experience of technical personnel through digitization, and the installation capacity of installation and debugging personnel is ensured, so that the stable work of the safety gear device is improved, and the safety performance of an elevator is improved.

Drawings

Fig. 1 is a perspective view of one embodiment of the present invention;

fig. 2 is a schematic structural diagram of a support frame according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a car frame according to an embodiment of the present invention;

fig. 4 is a bottom view of a car frame according to an embodiment of the present invention.

Wherein: the device comprises a support frame 1, a portal frame 11, a stabilizing frame 12, a bottom rod 121, a support rod 122, a lifting driving mechanism 2, a winch 21, a lifting steel wire rope 22, a car frame 3, a bottom beam 31, a distance measuring mark 32, a guide shoe 33, an oil cup 34, a measuring device 4, a laser distance measuring instrument 41, a time recorder 42, a safety gear linkage system 5, a safety gear lifting mechanism 51, a safety gear device 52, a speed limiter device 53, a speed limiting steel wire rope 54, a tension wheel 55 guide rail 6, a bottom code 61 and a pressure code 62.

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 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 drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being 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, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An elevator safety gear testing device according to an embodiment of the present invention is described below with reference to fig. 1 to 4, and includes a supporting frame 1, a lifting driving mechanism 2, a car frame 3, a measuring device 4, and a safety gear linkage system 5; the safety gear linkage system 5 comprises a safety gear lifting mechanism 51, a safety gear device 52 and a speed limiter device 53; the lifting driving mechanism 2 is arranged at the upper end of the support frame 1; the car frame 3 is slidably arranged on the support frame 1 along the vertical direction, and the car frame 3 is connected with the output end of the lifting driving mechanism 2; the measuring device 4 is arranged at the lower end of the support frame 1; the safety gear lifting mechanism 51 is arranged above one side of the car frame 3; two safety gear devices 52 are arranged and are respectively arranged at two sides below the car frame 3; the speed governor device 53 is arranged on the support frame 1, and the speed governor device 53 is connected with the safety gear lifting mechanism 51 through a speed limiting steel wire rope 54.

Specifically, in the embodiment, the car frame 3 is slidably arranged in the support frame 1, the test device has a compact structure, the test space is saved, the car frame 3 is lifted by the lifting mechanism, the lifting mechanism is directly arranged at the top of the support frame 1, and the lifting mechanism can be arranged by adopting the existing lifting mechanism of a trainee training center, so that the test device is convenient to install and test; the safety gear linkage system 5 is installed by an installer, the speed limiter device 53 is installed above the support frame 1, and then the speed limiting steel wire rope 54 is connected with the safety gear lifting mechanism 51, so that linkage can be realized, and the installation is simple and convenient; the safety gear lifting mechanism 51 and the safety gear device 52 are mounted on the car frame 3, then the safety gear device 52 is slidably mounted on the support frame 1, the level of the car frame 3 is guaranteed, the mounting of the safety gear linkage system 5 and the car frame 3 is completed, the operation is simple, the safety gear lifting mechanism is used for student teaching, a student can conveniently and repeatedly dismount and mount the safety gear linkage system 5 and the car frame 3, a good training way is provided, the elevator student can quickly master the elevator safety gear linkage working principle, and meanwhile, the elevator student can master the mounting skill of the elevator student by repeatedly dismounting and mounting the safety gear linkage device, and the mounting level is improved; in addition, the conventional assessment mode for the students needs observation and judgment of teachers, lacks of data support and has subjective judgment errors; the safety gear linkage system 5 is arranged on the base, the measuring device 4 is arranged in the embodiment, the installation condition of the safety gear linkage system 5 by a student can be visually checked, whether the safety gear linkage system 5 installed by the student meets the requirements or not can be reflected by the measuring device 4, and the data test result is more visual and convenient.

Further, in this embodiment, the measuring device 4 includes at least four laser range finders 41, and the at least four laser range finders 41 are respectively disposed at least four end points of the bottom of the supporting frame 1.

Further, in the embodiment, the measuring device 4 further includes a time recorder 42, and both of the safety gear devices 52 are provided with the time recorder 42, and when the safety gear devices 52 are operated, the time recorder 42 is triggered to start timing.

Specifically, in this embodiment, whether the installation of the safety gear linkage system 5 meets the requirement is determined by the levelness of the car frame 3 after the brake by the laser range finder 41, and whether the installation of the safety gear linkage system 5 meets the requirement is determined by the time of the brake by the time recorder 42 on the car frame 3, specifically: starting the speed limiter device 53 to act, simultaneously releasing the car frame 3 by the lifting mechanism, enabling the car frame 3 to start to vertically fall under the action of gravity, driving the safety lifting mechanism to act under the action of the speed limiter device 53, enabling the safety gear device 52 to hold the guide rail 6 on the support frame 1 until braking, and then recording data of the laser range finder 41, wherein four laser range finders 41 are arranged in the embodiment, and if the data difference measured by the four laser range finders 41 is less than 2mm, it can be determined whether the safety gear linkage system 5 installed by a student meets the requirement; if the difference between the brake-off time recorded by the two time recorders 42 is less than 2 seconds, the safety gear linkage system 5 installed by the trainee can be determined to be in accordance with the requirement; whether the safety gear linkage system 5 installed by the student meets the requirements or not can be visually reflected through the laser range finder 41 and the time recorder 42, and the data test result is more visual and convenient.

Further, in this embodiment, the bottom of the car frame 3 is provided with a distance measuring bottom beam 31, and the distance measuring bottom beam 31 is provided with a distance measuring mark 32 corresponding to the laser distance meter 41 in the vertical direction.

Specifically, in this embodiment, when laser range finder 41 carries out the range finding, laser irradiation is in on the range finding sign 32 of range finding floorbar 31, the installation of range finding floorbar 31 needs to keep the level, just its planar level need be guaranteed to the position of range finding floorbar 31 range finding sign 32, is favorable to guaranteeing the data that laser range finder 41 measured are accurate.

Further, in this embodiment, a tension wheel 55 is disposed below the supporting frame 1, and the speed-limiting steel wire rope 54 is wound around the tension wheel 55.

Specifically, in this embodiment, the tension wheel 55 can keep the steel wire rope taut, so as to avoid the problem that the speed-limiting steel wire rope 54 cannot trigger the safety gear lifting mechanism 51, and ensure safe and stable operation of the testing apparatus.

Further, in this embodiment, a guide rail 6 is disposed on an inner side of the support frame 1, a guide shoe 33 and an oil cup 34 are disposed on two sides of the car frame 3, and the guide shoe 33 is slidably disposed on the guide rail 6.

Specifically, in this embodiment, the guide rail 6 is fixed on the inner side of the support frame 1 by a fixing member such as a bolt, the guide shoes 33 are disposed on two sides of the car frame 3, the guide shoes 33 are slidably disposed on the guide rail 6, and the oil cup 34 is disposed on the guide shoes 33 and provides a lubricating effect for the guide shoes 33, so that the car frame 3 and the support frame 1 are slidably connected, and a guiding effect can be achieved, which is helpful for making the car frame 3 more stable in the lifting movement.

Further, in this embodiment the inside of support frame 1 is equipped with end code 61 and presses sign indicating number 62, end code 61 set up in the inside of support frame 1, press sign indicating number 62 set up in end code 61, guide rail 6 set up in press sign indicating number 62 with between end code 61, press sign indicating number 62 with guide rail 6 compresses tightly in end code 61.

Specifically, in this embodiment, the guide rail 6 is fixedly mounted on the bottom frame 61 through the pressing member 62, the pressing member 62 is locked to the bottom frame 61 through a fixing member such as a bolt, the pressing member 62 is pressed on the guide rail 6, so that the guide rail 6 can be pressed toward the bottom frame 61, the more tightly the bolt is locked when the pressing member 62 is mounted, the more tightly the pressing member 62 presses the guide rail 6, so that the guide rail 6 can be stably fixed to the support frame 1, thereby preventing the guide rail 6 from loosening during the movement of the car frame 3, causing a safety accident, and improving the safety performance of the test device.

Further, in this embodiment, the support frame 1 includes a gantry 11 and a stabilizing frame 12, and the lifting driving mechanism 2 is disposed at a top end of the gantry 11; the stabilizer 12 includes sill bar 121 and bracing piece 122, sill bar 121 set up in portal frame 11 ground bottom, the one end of bracing piece 122 set up in the end of sill bar 121, the other end set up in portal frame 11, bracing piece 122 with sill bar 121 is 45 contained angles and sets up.

Specifically, in this embodiment, the support frame 1 is composed of the portal frame 11 and the stabilizing frame 12, the support rod 122, the bottom rod 121 and the portal frame 11 form a triangle, and the triangle has the highest structural stability, so that the portal frame 11 and the stabilizing frame 12 in this embodiment can effectively improve the stability of the support frame 1, prevent the car frame 3 from shaking the portal frame 11 in the movement process, maintain the stability of the support frame 1, and improve the safety performance.

Further, in this embodiment, the lifting driving mechanism 2 includes a winch 21 and a lifting steel wire rope 22, the winch 21 is fixedly disposed at the top of the support frame 1, one end of the lifting steel wire rope 22 is connected to an output end of the winch 21, and the other end of the lifting steel wire rope is connected to the car frame 3.

Specifically, in this embodiment, the hoist 21 drives the lifting steel wire rope 22 to move, so as to lift the car frame 3, so that the car frame 3 is lifted along the support frame 1, the hoist 21 is installed in the center of the top of the suzao fox support frame 1, and the elevator safety gear testing device is stable in transmission, compact in structure, simple and convenient to install, and convenient to assemble at a practical training center.

The application also provides a debugging method of the elevator safety gear testing device, which is applied to the elevator safety gear testing device and comprises the following steps:

s1, rechecking the levelness of the car frame 3 by using a horizontal ruler, and if the car frame 3 is not parallel to the horizontal ruler, adjusting the car frame 3 according to the horizontal ruler to ensure that the car frame 3 is parallel to the horizontal plane and ensure that the horizontal ruler displays the car frame 3 to be horizontal;

s2, rechecking whether the laser range finders 41 work normally, if the laser range finders cannot work normally, maintaining or replacing the laser range finders 41, ensuring that the numerical values measured by the laser range finders 41 are consistent when the laser range finders 41 detect the same plane, and then performing data resetting processing;

s3, checking whether the time recorder 42 works normally or not, descending the car frame 3 by using the lifting mechanism, triggering the safety gear lifting mechanism 51 to trigger the safety gear device 52 to act, checking whether the time recorder 42 records time or not after the car frame 3 stops, checking whether the time recorder 42 is damaged or not if the time recorder 42 does not record time, and if the time recorder 42 is damaged, maintaining or replacing the time recorder 42, adjusting the installation position of the time recorder 42 to ensure that the initial data is zero when each time recorder 42 is not triggered, and recording the brake time by the time recorder 42 after the car frame 3 descends to move.

Specifically, in the debugging method for the elevator safety gear testing device provided in this embodiment, after the trainee completes the assembly of the elevator safety gear testing device, in order to ensure that the testing device can operate normally and safely, the testing device needs to be debugged before being started, wherein the debugging method includes ensuring the level of the car frame 3, ensuring the normal operation of the laser range finder 41, ensuring the normal operation of the time recorder 42, testing and ensuring the safe operation of the safety gear linkage system 5, and when ensuring the normal and correct operation of each component, starting to test and examine the assembled elevator safety gear testing device, so that not only can the damage of the device caused by an accident occurring in the operation of the unmounted device be prevented, but also the damage of the trainee caused by the accident can be avoided.

Further, in this embodiment, in the step S2, when it is ensured that the laser distance meters 41 detect the same plane, the method for the laser distance meters 41 to measure the same value includes the following steps: utilize elevating system will the one end distance of car frame 3 slow movement, use the level bar to ensure that car frame 3 is horizontal after, then utilize laser range finder 41 range finding inspection, ensure that each laser range finder 41 measures the difference between the data and can not be greater than 2mm, need inspect more than 3 at least, if do not accord with then adjust the locating position of laser range finder 41 until according with the requirement that the difference between the laser range finder 41 measured the data is not more than 2 mm.

Specifically, in the embodiment, the method for detecting the laser range finder 41 is provided, after the car frame 3 is moved and the car frame 3 is kept horizontal, data recorded by the laser range finder 41 is recorded, whether the data recorded by each laser range finder 41 are consistent or have a small difference is observed, and through multiple tests, the laser range finder 41 is ensured to normally and correctly operate, so that the correctness of an examination result is ensured, the situation that the examination result is wrong due to the problem of the laser range finder 41 is avoided, and the accuracy of the examination is ensured.

The application also provides a practical training assessment method of the elevator safety gear test device, which is applied to the elevator safety gear test device and comprises a pre-test assessment method and a post-test assessment method;

the pre-test assessment method comprises the following steps:

firstly, the car frame 3 is lifted to the upper part of the support frame 1 by using a lifting mechanism, and then the following steps are executed:

a1, detecting the installation of the elevator safety gear testing device: checking the distance between the safety gear mechanism and the guide rail 6 by using a measuring ruler, wherein the distance between the top surface of the guide rail 6 and the safety gear device 52 is 1 and is consistent with the distance required by the design of a drawing; 2. whether the clearance values from the end surfaces of the two sides of the guide rail 6 to the end surfaces of the wedges of the corresponding safety gear devices 52 are consistent or not; if the difference value of the measured data of the two points and the data required by the device is less than 3mm, the data is regarded as consistent, and the tentative definition and the pass are checked;

a2, checking the levelness of the car frame 3 by using a horizontal ruler, if the horizontal ruler shows that the car frame 3 is not horizontal, checking the car frame to be failed, and otherwise, checking the car frame to be tentatively passed;

a3, slowly moving the car frame 3 by a distance from one end by using a lifting mechanism, measuring the distance by using the laser distance measuring instruments 41, recording the measured data of each laser distance measuring instrument 41, repeatedly checking for three times in this way, recording three groups of data, if the difference between the measured data of each group of the laser distance measuring instruments 41 is not more than 2mm, checking whether the data are temporarily qualified, or else checking whether the data are unqualified;

and A4, descending the car frame 3 by using the lifting mechanism, starting the safety gear device 52, recording the time measured by the time recorder 42, if the time recorder 42 does not record the time, checking the time failing, otherwise, checking the temporary passing.

Wherein the post-test assessment method comprises the following steps:

b1, moving the car frame 3 to the top end of the support frame 1 through the lifting mechanism;

b2, starting the speed limiter to act, simultaneously releasing the car frame 3 by the lifting mechanism, enabling the car frame 3 to start to vertically fall under the action of gravity, driving the safety pulling mechanism to act under the action of the speed limiter, and enabling the safety gear device 52 to hold the guide rail 6 on the support frame 1 until the brake is stopped;

b3, recording the time of the two time recorders 42 respectively, wherein the time is the time taken by the safety gear device 52 from triggering to the moment that the car frame 3 is braked and stopped; comparing the time of the two time recorders 42, if the difference is within 2 seconds, the time of the safe action at the two sides can be considered as being consistent, and checking whether the time passes the tentative condition or not;

b4, recording the data of each laser range finder 41 respectively, comparing the data of each laser range finder 41, if the difference is within 5mm, the car frame 3 is not excessively inclined, and the car frame meets the test requirements, and checking whether the car frame is temporarily qualified or not, otherwise, the car frame is not qualified.

By combining the pre-test examination method and the post-test examination method, if the examination in each step is tentatively qualified, the installation of the student safety gear linkage system 5 meets the examination requirements, and the examination is judged to be qualified, otherwise, the examination is judged to be unqualified.

Specifically, the trainee is examined by the training examination method provided by the embodiment, if the comparison results of the laser range finder 41 and the time recorder 42 meet the requirements, the linkage performance of the safety gear is good, the installation of the trainee safety gear linkage system 5 meets the examination requirements, if the distance difference measured by each laser range finder 41 is large, and the trigger time difference of each time recorder 42 is large, the performance of the safety gear linkage system 5 is poor, and the installation of the trainee safety gear linkage system 5 does not meet the examination requirements; the laser range finder 41 and the time recorder 42 can visually reflect whether the safety gear linkage system 5 installed by the student meets the requirements or not, the data test result is more visual and convenient, the examination method can accurately examine whether the elevator safety gear test device assembled by the student meets the requirements or not, the examination purpose is achieved through installation data measurement comparison and synchronism examination in the examination process, meanwhile, the results of the laser range finder 41 and the time recorder 42 are mutually verified, the data test result enables the examination result to be visual, the accuracy and objectivity of the test result are guaranteed, and a good training way is provided.

According to the utility model discloses other constitutions of elevator safety tongs test device, and be applied to debugging method and application on the elevator safety tongs test device all the other operations of the real standard examination method on the elevator safety tongs test device are known to the ordinary technical personnel in this field, and do not describe here in detail.

In the description herein, references to the description of the terms "embodiment," "example," etc., 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides an elevator safety tongs test device which characterized in that: comprises a supporting frame, a lifting driving mechanism, a car frame, a measuring device and a safety gear linkage system; the safety gear linkage system comprises a safety gear lifting mechanism, a safety gear device and a speed limiter device; the lifting driving mechanism is arranged at the upper end of the support frame; the car frame is arranged on the support frame in a sliding manner along the vertical direction and is connected with the output end of the lifting driving mechanism; the measuring device is arranged at the lower end of the support frame; the safety gear lifting mechanism is arranged above one side of the car frame; the two safety gear devices are arranged and are respectively arranged on two sides below the car frame; the speed limiter device is arranged on the supporting frame and is connected with the safety tongs lifting mechanism through a speed limiting steel wire rope.

2. The elevator safety gear testing device according to claim 1, characterized in that: the measuring device comprises four laser range finders, and the four laser range finders are arranged at least and are respectively arranged at least four end points of the bottom of the support frame.

3. The elevator safety gear testing device according to claim 2, characterized in that: the measuring device further comprises a time recorder, the two safety gear devices are respectively provided with the time recorder, and the time recorder is triggered to start timing when the safety gear devices operate.

4. The elevator safety gear testing device according to claim 2, characterized in that: the bottom of car frame is equipped with the range finding floorbar, the range finding floorbar be equipped with the range finding sign that laser range finder corresponds in vertical direction.

5. The elevator safety gear testing device according to claim 1, characterized in that: a tension wheel is arranged below the supporting frame, and the speed-limiting steel wire rope is wound on the tension wheel.

6. The elevator safety gear testing device according to claim 1, characterized in that: the car frame is characterized in that a guide rail is arranged on the inner side of the support frame, guide shoes and oil cups are arranged on two sides of the car frame, and the guide shoes are slidably arranged on the guide rail.

7. The elevator safety gear testing device according to claim 6, characterized in that: the inboard of support frame is equipped with the end sign indicating number and presses the sign indicating number, the end sign indicating number set up in the inboard of support frame, press the sign indicating number set up in the end sign indicating number, the guide rail set up in press the sign indicating number with between the end sign indicating number, press the sign indicating number will the guide rail compress tightly in the end sign indicating number.

8. The elevator safety gear testing device according to claim 1, characterized in that: the support frame comprises a portal frame and a stabilizing frame, and the lifting driving mechanism is arranged at the top end of the portal frame; the stabilizer bar includes sill bar and bracing piece, the sill bar set up in portal frame ground bottom, the one end of bracing piece set up in the end of sill bar, the other end set up in the portal frame, the bracing piece with the sill bar is 45 contained angles and sets up.

9. The elevator safety gear testing device according to claim 1, characterized in that: the lifting driving mechanism comprises a winch and a lifting steel wire rope, the winch is fixedly arranged at the top of the support frame, one end of the lifting steel wire rope is connected with the output end of the winch, and the other end of the lifting steel wire rope is connected with the car frame.