CN211812889U - Electric rope loosening device and rope lifting structure for on-site calibration of speed limiter - Google Patents
Electric rope loosening device and rope lifting structure for on-site calibration of speed limiter Download PDFInfo
- Publication number
- CN211812889U CN211812889U CN202020445939.XU CN202020445939U CN211812889U CN 211812889 U CN211812889 U CN 211812889U CN 202020445939 U CN202020445939 U CN 202020445939U CN 211812889 U CN211812889 U CN 211812889U
- Authority
- CN
- China
- Prior art keywords
- rope
- pressing
- wheel assembly
- driving
- hook
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses an electric rope loosening device and a rope lifting structure for the on-site calibration of a speed limiter, wherein the electric rope lifting device comprises a driving wheel component, a pressing wheel component, a motor, a hinge and a pressing bolt; the driving wheel assembly and the pressing wheel assembly are arranged in parallel, the driving wheel assembly comprises a driving roller, the pressing wheel assembly comprises a pressing roller corresponding to the driving roller, the driving roller and the pressing roller are both made of polyurethane materials, and a clamping space is formed between the driving roller and the pressing roller; the motor is connected with the driving wheel assembly and drives the driving roller to rotate, one end of the hinge is fixed on the driving wheel assembly, the other end of the hinge is hinged with the pressing wheel assembly, and the pressing bolt penetrates through the driving wheel assembly and the pressing wheel assembly and is locked and fixed by adopting a pressing nut; this application drive wheel rotates under motor drive to give a reaction force of wire rope, make wire rope rebound, and then break away from the grooving, need not come the running back at pit bed hedgehopping take-up pulley.
Description
Technical Field
The utility model relates to an elevator technical field, concretely relates to electronic slack rope device and carry rope structure for on-spot check-up of overspeed governor.
Background
In order to ensure the safe operation of the elevator, the national elevator inspection regulations stipulate that the elevator speed limiter needs to perform action speed verification every two years of use, and the verification is generally performed in a machine room on the elevator use site. The method adopted at present is as follows: the elevator is powered off, the tensioning wheel is lifted by the support at the pit, the steel wire rope is pried out from the speed limiter rope wheel by a screwdriver in a machine room and is pulled upwards with force, and the steel wire rope is clamped by a locking pliers after being pulled to the place, so that the steel wire rope is prevented from falling back. And after the idle load of the rope wheel can rotate freely, the rope wheel is checked by a speed limiter checking instrument. This method has the following problems: 1. if only one elevator is provided, people can not conveniently go back and forth from the pit and the machine room through the stairs after stopping the elevator; 2. a proper and stable bracket is difficult to find on site to heighten the tensioning wheel; 3. after the tensioning wheel is lifted, when the steel wire rope from the machine room to the pit is long, the steel wire rope has large dead weight, manpower is hard to lift, and personnel are easy to be injured.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing an electronic slack rope device for on-spot check-up of overspeed governor.
Further, the utility model also provides an electronic structure of carrying rope that is used for the on-spot check-up of overspeed governor
The utility model adopts the technical proposal that:
the electric rope releasing device for the on-site calibration of the speed limiter comprises a driving wheel assembly, a pressing wheel assembly, a motor, a hinge, a pressing bolt and a pressing nut; the driving wheel assembly and the pressing wheel assembly are arranged in parallel, the driving wheel assembly comprises at least two driving rollers, the pressing wheel assembly comprises at least two pressing rollers corresponding to the driving rollers, the driving rollers and the pressing rollers are both made of polyurethane materials, and a clamping space for clamping and pressing the steel wire rope is formed between the driving rollers and the pressing rollers; the motor is connected with the driving wheel assembly and drives the driving roller to rotate, one end of the hinge is fixed on the driving wheel assembly, the other end of the hinge is hinged with the pressing wheel assembly, and the pressing bolt penetrates through the driving wheel assembly and the pressing wheel assembly and is locked and fixed by adopting a pressing nut.
Furthermore, the application also provides an electric rope lifting structure for the on-site calibration of the speed limiter, which comprises a speed limiter rope pulley, a steel wire rope arranged on the speed limiter rope pulley, a rope loosening device and a rope lifting device, wherein the rope loosening device adopts the rope loosening device, and the steel wire rope is clamped in a clamping space formed between the driving roller and the pressing roller and can move upwards under the action of the driving roller and the pressing roller; the rope lifting device comprises a frame, a cross beam, a screw rod, a nut and a rope hooking component; the frame is square stool-shaped, the top of the frame is of a hollow structure, a guide rail is arranged at the top of the frame, the cross beam is arranged at the top of the frame, and the two ends of the cross beam are in sliding fit with the guide rail at the corresponding side of the top of the frame; the screw is matched with the nut, and the lower end of the screw penetrates through the cross beam; the hook rope component is connected to the lower end of the screw rod and can rotate relatively, and a hook is arranged on the hook rope component; the steel wire rope is separated from the speed governor rope wheel and then hung on the hook under the action of the rope loosening device.
Further, the shelf is a metal shelf.
Furthermore, a through hole is formed in the middle of the cross beam, and the nut is rotatably arranged on the cross beam; the lower end of the screw rod penetrates through the nut and the through hole, and the screw rod is in threaded fit with the nut.
Further, the number of the hooks is two.
Further, the hook is a metal hook.
Furthermore, the metal hook is of an arc-shaped structure which is arched upwards, and a groove matched with the steel wire rope on the speed limiter rope wheel is formed in the upper side of the metal hook.
Further, the hook rope assembly further comprises a metal block, and the hook is fixed on the metal block.
Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:
according to the rope releasing device and the rope lifting device, the steel wire rope which is not clamped into the rope groove of the rope wheel of the speed limiter is clamped into the clamping space formed between the driving roller and the pressing roller, the speed reducing motor is started, the steel wire rope moves upwards until the steel wire rope is separated from the rope groove, the tensioning wheel is not required to be heightened at the bottom pit to run back and forth, and labor is saved; set up the couple that is used for hooking wire rope on the overspeed governor rope sheave on the hook rope subassembly, after the rope loosening device made wire rope break away from the grooving, hung wire rope on the couple, mention screw rod and hook rope subassembly through swivel nut, and then mention wire rope, need not adopt the manpower to carry and draw wire rope, avoided personnel because of carrying the injured drawback of wire rope. This application is through the cooperation of rope slackening device with carrying the rope device, messenger's wire rope that can be convenient breaks away from the grooving, carries out the check-up operation of overspeed governor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an electric rope releasing device for field verification of a speed limiter provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of another direction of an electric rope releasing device for field verification of the speed limiter, provided by the embodiment of the application;
fig. 3 is a schematic structural diagram of another direction of an electric rope releasing device for field verification of the speed limiter, provided by the embodiment of the application;
fig. 4 is a perspective view of an electric rope lifting device for field verification of a speed limiter provided by the embodiment of the application;
fig. 5 is a front view of an electric rope lifting device for site verification of a speed limiter provided by the embodiment of the application.
The device comprises a frame 1, a vertical supporting rod 11, a transverse supporting rod 12, a guide rail 13, a cross beam 2, a screw rod 3, a nut 4, a metal block 5, a hook 6, a connecting rod 7, a steel wire rope 8, a speed limiter rope wheel 9, a motor 14, a driving roller 15, a pressing roller 16, a pressing bolt 17, a hinge 18, a transmission gear 19, a base support 20 and a pressing nut 21.
Detailed Description
Here, it is to be noted that the functions, methods, and the like related to the present invention are only conventional adaptive applications of the related art. Therefore, the present invention is an improvement of the prior art, which substantially lies in the connection relationship between hardware, not in the functions and methods themselves, that is, the present invention relates to a few functions and methods, but does not include the improvements proposed in the functions and methods themselves. The present invention is described for better illustration of the function and method for better understanding of the present invention.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
Referring to fig. 1, the electric rope releasing device for the on-site verification of the speed limiter comprises a driving wheel assembly, a pressing wheel assembly, a motor 14, a hinge 18, a pressing bolt 17 and a pressing nut 21; the driving wheel assembly and the pressing wheel assembly are arranged in parallel, the driving wheel assembly comprises at least two driving rollers 15, the pressing wheel assembly comprises at least two pressing rollers 16 corresponding to the driving rollers 15, the driving rollers 15 and the pressing rollers 16 are both made of polyurethane materials, and a clamping space for clamping the steel wire rope 8 is formed between the driving rollers 15 and the pressing rollers 16; the motor 14 is connected with the driving wheel assembly and drives the driving roller 15 to rotate, one end of the hinge 18 is fixed on the driving wheel assembly, the other end of the hinge is hinged with the pressing wheel assembly, and the pressing bolt 17 penetrates through the driving wheel assembly and the pressing wheel assembly and is locked and fixed by adopting a pressing nut 21.
When the steel wire rope clamping device is used, the compression nut 21 on the compression bolt 17 is loosened, the distance between the driving wheel assembly and the compression wheel assembly is opened, the steel wire rope 8 is clamped between the driving roller 15 and the compression roller 16, and the compression nut 21 on the compression bolt 17 is screwed down, so that the driving roller 15 and the compression roller 16 clamp the steel wire rope 8; the motor 14 is started, the driving roller 15 and the pressing roller 16 are both made of polyurethane materials and have large friction force, and the driving wheel rotates under the driving of the motor 14, so that a reaction force is given to the steel wire rope 8, the steel wire rope 8 moves upwards and then breaks away from a rope groove, and people do not need to run back and forth between a pit and a machine room due to the fact that the tension wheel is heightened on the pit.
The device also comprises a base support 20, and a driving wheel assembly and a pinch roller assembly are arranged on the base support 20.
Referring to fig. 2 and 3, in a specific embodiment, the driving wheel assembly includes two driving rollers 15 and a first mounting bracket for mounting the driving rollers 15, and the two driving rollers 15 are respectively mounted at both ends of the first mounting bracket. The motor 14 is a speed reducing motor 14, and the power of the motor 14 transmits the torque of the motor 14 to the two driving rollers 15 through a transmission gear 19 to drive the two driving rollers to rotate.
The pinch roller assembly comprises two pinch rollers 16 and a second mounting frame for mounting the pinch rollers 16, and the two pinch rollers 16 are respectively mounted at two ends of the second mounting frame.
One end of the hinge 18 is fixed to one end of the first mounting bracket and the other end is hinged to the corresponding end of the second mounting bracket. Under the action of external force, the second mounting frame rotates for a certain angle by taking the hinge pin shaft of the hinge 18 as an axis. The distance between the driving roller on the first mounting frame and the pressing roller on the second mounting frame is increased so as to clamp the steel wire rope 8 between the driving roller 15 and the pressing roller 16.
The first mounting frame and the second mounting frame are respectively provided with a hole for the compression bolt 17 to pass through, the compression bolt 17 passes through the hole and is locked and fixed by the compression nut 21, and the clamping space between the driving roller 15 and the compression roller 16 can be adjusted by adjusting the tightness of the compression bolt 17 and the compression nut 21, so that the clamping pressure of the driving roller 15 and the compression roller 16 on the steel wire rope 8 is adjusted. The compression nut 21 may be a wing nut that can be easily tightened or loosened without the aid of tools.
The first mounting frame and the second mounting frame are both arranged at the upper end of the base support, and the base support 20 plays a supporting role in supporting the driving wheel assembly and the pinch roller assembly
The motor 14 can drive the driving roller 15 to rotate in the following way:
the output shaft of the motor 14 is coupled to the shaft of the driving roller a. A driving gear and a driving roller a are arranged on a shaft of the driving roller a, and the motor 14 drives the driving gear and the driving roller a to rotate through the shaft of the driving roller a; the driving assembly further comprises a first driven gear and a second driven gear, the first driven gear is meshed with the driving gear, the second driven gear is mounted on a wheel shaft of the driving roller b and meshed with the first driven gear, and when the driving gear is driven to rotate by the motor 14, the driving roller b rotates along with the driving gear.
Referring to fig. 4 and 5, further, the present application also provides an electric rope lifting device for field calibration of a speed limiter, which includes a speed limiter rope pulley 9 and a steel wire rope 8 installed on the speed limiter rope pulley 9; the rope releasing device is the rope releasing device, the steel wire rope 8 is clamped in a clamping space formed between the driving roller 15 and the pressing roller 16, and can move upwards under the action of the driving roller 15 and the pressing roller 16; the rope lifting device comprises a frame 1, a cross beam 2, a screw rod 3, a nut 4 and a rope hooking component; the rack 1 is in a square stool shape, the top of the rack 1 is in a hollow structure, a guide rail 13 is arranged at the top of the rack 1, the cross beam 2 is arranged at the top of the rack 1, and two ends of the cross beam are in sliding fit with the guide rail 13 at the corresponding side of the top of the rack 1; the screw rod 3 is matched with the nut 4, and the lower end of the screw rod penetrates through the cross beam 2; the hook rope component is connected to the lower end of the screw rod 3 and can rotate relatively, and a hook 6 is arranged on the hook rope component; and the steel wire rope 8 is separated from the speed governor rope wheel 9 under the action of the rope loosening device and then is hung on the hook 6.
According to the application, the rope loosening device and the rope lifting device are arranged, the steel wire rope 8 which is not clamped into the rope groove of the speed limiter rope sheave 9 is clamped into a clamping space formed between the driving roller 15 and the pressing roller 16, the speed reducing motor 14 is started, the steel wire rope 8 moves upwards until the steel wire rope is separated from the rope groove, the tensioning wheel does not need to be heightened at a bottom pit to run back, and labor is saved; set up the couple 6 that is used for hooking wire rope 8 on overspeed governor rope sheave 9 on the hook rope subassembly, after the slack rope device makes wire rope 8 break away from the grooving, hang wire rope 8 on couple 6, mention screw rod 3 and hook rope subassembly through swivel nut 4, and then mention wire rope 8, need not adopt the manpower to carry and draw wire rope 8, avoided personnel because of carrying and draw wire rope 8 injured drawback. This application is through the cooperation of rope slackening device with carrying the rope device, and messenger wire rope 8 that can be convenient breaks away from the grooving, carries out the check-up operation of overspeed governor.
Preferably, the shelf 1 is a metal shelf, the metal shelf includes vertical support bars 11 and horizontal support bars 12, the vertical support bars 11 are four, four vertical support bars 11 are arranged in a rectangular shape and are parallel to each other, the horizontal support bars 12 are four corresponding ones, and four horizontal support bars 12 are horizontally fixed at the upper ends of the vertical support bars 11 to form a square stool shape with an open top.
Preferably, the top of the shelf 1 is provided with a guide rail 13, and both ends of the cross beam 2 are slidably engaged with the guide rail 13. Specifically, guide rails 13 are arranged on the inner sides of two transverse support rods 12 which are arranged oppositely, and two ends of the cross beam 2 are respectively in sliding fit with the guide rails 13 on the corresponding sides.
Through set up guide rail 13 at the top of shelf 1, crossbeam 2's both ends and guide rail 13 sliding fit, when using, can be according to the position adjustment crossbeam 2's of overspeed governor position, the wire rope 8 is hooked to the couple 6 of being more convenient for.
Preferably, the middle part of the beam 2 is provided with a through hole, and the nut 4 can be rotatably arranged on the beam 2; the lower end of the screw rod 3 penetrates through the nut 4 and the through hole, and the screw rod 3 is in threaded fit with the nut 4.
Through setting up nut 4 and 3 screw-thread fit of screw rod, on crossbeam 2 was arranged in to nut 4, crossbeam 2 played limiting displacement. When the rope is lifted, the ratchet wrench can be adopted to rotate the nut 4 to lift the screw rod 3 upwards so as to lift the steel wire rope 8, and the operation is convenient and simple.
Preferably, the hook rope assembly further comprises a metal block 5, and the hook 6 is fixed on the metal block 5. The metal block 5 is a rectangular metal block 5, and the number of the hooks 6 is two. Further, the hook 6 is two metal hooks.
More specifically, the metal hook is of an arc-shaped structure which is arched upwards, and a groove which is matched with the steel wire rope 8 on the speed limiter rope wheel 9 is formed in the upper side of the metal hook.
Through setting up couple 6 to the arc structure of upwards arching, when using, wire rope 8 cooperation on the overspeed governor rope sheave 9 is in the recess, avoids producing great deformation because of adopting ordinary couple 6 and arousing wire rope 8 to be hooked the position. Specifically, the upward arched radian of the metal hook is matched with the radian of the rope wheel, so that the deformation of the hooked part of the steel wire rope 8 is further reduced.
Preferably, the hook rope assembly further comprises two connecting rods 7, the two connecting rods 7 correspond to the two metal hooks, one end of each connecting rod 7 is fixed to the metal block 5, and the other end of each connecting rod 7 is fixed to the metal hooks.
When the elevator is used, firstly, the elevator is powered off and stopped, the base of the rope loosening device is adjusted and installed, after the installation is finished, the adjusting driving wheel assembly of the rope loosening device is used for opening a clamping space between the driving wheel assembly and the pressing wheel assembly, the steel wire rope 8 is installed in the clamping space, the pressing bolt 17 is screwed down, the steel wire wheel is clamped between the driving roller 15 and the pressing roller 16, the motor 14 is started, the driving roller 15 is driven to rotate, the driven roller rotates along with the steel wire rope 8, the steel wire rope 8 is driven to move upwards, the steel wire rope 8 is separated from a rope groove, and the steel wire rope 8 is hung on the rope lifting device; the ratchet wrench is rotated to drive the nut 4, so that the screw rod 3 rises, the hook rope component rises along with the screw rod 3, and the steel wire rope 8 is lifted. After the steel wire rope 8 is lifted to a proper position, the speed limiter rope wheel 9 can freely rotate in an idle state, and then the speed limiter checking operation can be carried out.
In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, system, 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 are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, systems, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (8)
1. The electric rope releasing device for the on-site calibration of the speed limiter is characterized by comprising a driving wheel assembly, a pressing wheel assembly, a motor (14), a hinge (18) and a pressing bolt (17); the steel wire rope clamping device is characterized in that the driving wheel assembly and the pressing wheel assembly are arranged in parallel, the driving wheel assembly comprises at least two driving rollers (15), the pressing wheel assembly comprises at least two pressing rollers (16) corresponding to the driving rollers (15), the driving rollers (15) and the pressing rollers (16) are both made of polyurethane materials, and a clamping space for clamping and pressing the steel wire rope (8) is formed between the driving rollers (15) and the pressing rollers (16); the motor (14) is connected with the driving wheel assembly and drives the driving roller (15) to rotate, one end of the hinge (18) is fixed on the driving wheel assembly, the other end of the hinge is hinged with the pressing wheel assembly, and the pressing bolt (17) penetrates through the driving wheel assembly and the pressing wheel assembly and is locked and fixed by a pressing nut (21).
2. An electric rope lifting structure for field calibration of a speed limiter, which comprises a speed limiter rope wheel (9) and a steel wire rope (8) arranged on the speed limiter rope wheel (9), and is characterized by further comprising a rope loosening device and a rope lifting device, wherein the rope loosening device adopts the rope loosening device as claimed in claim 1, and the steel wire rope (8) is clamped in a clamping space formed between a driving roller (15) and a pressing roller (16) and can move upwards under the action of the driving roller (15) and the pressing roller (16); the rope lifting device comprises a frame (1), a cross beam (2), a screw rod (3), a nut (4) and a rope hooking component; the rack (1) is square stool-shaped, the top of the rack (1) is of a hollow structure, a guide rail (13) is arranged at the top of the rack (1), the cross beam (2) is installed at the top of the rack (1), and two ends of the cross beam are in sliding fit with the guide rail (13) on the corresponding side of the top of the rack (1); the screw (3) is matched with the nut (4), and the lower end of the screw penetrates through the cross beam (2); the hook rope component is connected to the lower end of the screw rod (3) and can rotate relatively, and a hook (6) is arranged on the hook rope component; the steel wire rope (8) is separated from the speed governor rope wheel (9) under the action of the rope loosening device and then is hung on the hook (6).
3. The electric lifting rope structure for site verification of speed limiters according to claim 2 is characterized in that the frame (1) is a metal frame.
4. The electric lifting rope structure for the on-site verification of the speed limiter is characterized in that a through hole is formed in the middle of the cross beam (2), and the nut (4) is rotatably arranged on the cross beam (2); the lower end of the screw rod (3) penetrates through the nut (4) and the through hole, and the screw rod (3) is in threaded fit with the nut (4).
5. The electric lifting rope structure for site verification of speed governors according to claim 2, characterized in that the number of hooks (6) is two.
6. The electric lifting rope structure for site verification of speed governors according to claim 5, characterized in that the hook (6) is a metal hook.
7. The electric lifting rope structure for the on-site verification of the speed limiter, according to the claim 6, is characterized in that the metal hook is of an arc structure which is arched upwards, and a groove which is matched with the steel wire rope (8) on the speed limiter rope wheel (9) is formed in the upper side of the metal hook.
8. The electric lifting rope structure for site verification of the speed limiter according to claim 2, wherein the hooking rope assembly further comprises a metal block (5), and the hook (6) is fixed on the metal block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020445939.XU CN211812889U (en) | 2020-03-31 | 2020-03-31 | Electric rope loosening device and rope lifting structure for on-site calibration of speed limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020445939.XU CN211812889U (en) | 2020-03-31 | 2020-03-31 | Electric rope loosening device and rope lifting structure for on-site calibration of speed limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211812889U true CN211812889U (en) | 2020-10-30 |
Family
ID=73148889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020445939.XU Active CN211812889U (en) | 2020-03-31 | 2020-03-31 | Electric rope loosening device and rope lifting structure for on-site calibration of speed limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211812889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998556A (en) * | 2021-11-24 | 2022-02-01 | 河南大亘计量检测研究院有限公司 | Speed limiter checking method and device calibration equipment and method |
-
2020
- 2020-03-31 CN CN202020445939.XU patent/CN211812889U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998556A (en) * | 2021-11-24 | 2022-02-01 | 河南大亘计量检测研究院有限公司 | Speed limiter checking method and device calibration equipment and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211812889U (en) | Electric rope loosening device and rope lifting structure for on-site calibration of speed limiter | |
| CN211812888U (en) | Lever type rope loosening device and rope lifting structure for on-site calibration of speed limiter | |
| CN211173021U (en) | Anti-falling device for attached lifting scaffold | |
| CN116345355B (en) | Auxiliary assembly of cable tension installation | |
| CN211235246U (en) | Elevator wire rope that facilitates use is with inspection anchor clamps | |
| CN218434522U (en) | Hoisting equipment for sectional assembly of aero-engine | |
| CN116835405A (en) | Speed limiter wire rope hoisting device | |
| CN201367726Y (en) | Lifter for high operation hanging basket | |
| CN215666689U (en) | Anti-shaking device for double-beam crane | |
| CN212450158U (en) | Rope lifting device for on-site calibration of speed limiter | |
| CN210955717U (en) | Modular pulley structure learning equipment | |
| CN212558969U (en) | Multi-stage driving mechanism for elevator | |
| CN220664729U (en) | Electric hoist for lifting scaffold | |
| CN216202269U (en) | Be used for a building electromechanical installation gallows | |
| CN215817230U (en) | Be used for cable equipment of flare-outing | |
| CN215101619U (en) | Intelligent hoisting equipment | |
| CN115149483B (en) | Dual-installation anti-drop damper and installation method thereof | |
| CN219859983U (en) | Speed limiter wire rope stripping device | |
| CN217578104U (en) | Brake device for small-sized building hoisting machinery | |
| CN217676323U (en) | Prevent many lifting hook hoist and mount subassembly of interference | |
| CN211895882U (en) | Electric block promotes installation device | |
| CN220747987U (en) | Lifting device for sliding window | |
| CN220104348U (en) | Self-anchored suspension bridge main cable tension monitoring device | |
| CN219243140U (en) | Highway natural disasters remote monitoring and early warning device | |
| CN217604338U (en) | Be applicable to first floor outer wall air conditioner outer unit mounting tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201111 Address after: Room 1201, building 1, No. 258, Zhijiang Road, Fengxian District, Shanghai, 201499 Patentee after: Lianluan Intelligent Technology (Shanghai) partnership (limited partnership) Address before: Room 1804, building F1, Lugu Yuyuan, No. 27, Wenxuan Road, Changsha hi tech Development Zone, Changsha City, Hunan Province Patentee before: Changsha Zongheng Elevator Engineering Co.,Ltd. |