Novel lifting mechanism

Abstract

The utility model discloses a novel lifting mechanism, which belongs to the technical field of elevators, and comprises two guide rails, the two ends of a lifting rod are fixedly connected with pulling mechanisms, the two ends of the lifting rod are fixedly connected with pulling plates respectively, and the front ends of two upright posts are fixedly connected with resetting mechanisms; and the rear ends of the two pulling plates are slidably connected with locking mechanisms. According to the elevator overspeed protection device, elevator overspeed protection is achieved through a mechanical linkage mechanism, a double-state control mode is achieved, it is guaranteed that the system is kept in a locking state in a normal state, and quick response and braking execution are achieved under the emergency situation; in the normal locking stage, the tension spring pretightening force maintains static locking of the lifting rod and the fixing plate, and the safety gear component and the guide rail are kept in a non-contact state; in the emergency triggering stage, the speed governor drives the fixing plate to deflect through the pull rope, the lifting rod is driven to rotate, then the sliding rod is pushed to move upwards through the pull plate and the sliding groove, the safety gear component makes contact with the guide rail, clamping force is generated, and forced braking is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator technical field, in particular to a new type of lifting mechanism. BACKGROUND

[0002] In the existing elevator safety system, the lifting mechanism as a key safety execution component undertakes the core function of triggering the safety clamp to lock the guide rail in the emergency situation such as overspeed and out of control.

[0003] The mainstream lifting mechanism at present generally adopts a multi-link composite structure or a hydraulic transmission system, and the technical route has certain defects: the traditional mechanism adopts multi-stage levers or gear and rack transmission to pursue sufficient locking force, resulting in the increase of structural complexity, which not only increases the manufacturing and assembly difficulty, but also causes the action reliability to decrease due to wear in long-term use; and the multi-link composite structure has many components, so that the whole system has multiple potential fault nodes, and the maintenance cost is high; the complex mechanical transmission path prolongs the emergency response time, and in the extreme working condition, the risk of top or bottom squatting may increase due to millisecond delay.

[0004] Therefore, it is urgent to provide a new type of lifting mechanism to solve the above problems. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a new type of lifting mechanism.

[0006] To solve the above technical problems, one technical scheme of the utility model is to provide a new type of lifting mechanism, which comprises two guide rails, the outer portions of the two guide rails are slidably connected with stand columns, the front ends of the two stand columns are fixedly connected with an elevator, the front ends of the two stand columns are rotatably connected with lifting rods, the two ends of the lifting rods are fixedly connected with lifting mechanisms, the two ends of the lifting rods are fixedly connected with pulling plates, and the front ends of the two stand columns are fixedly connected with reset mechanisms.

[0007] The rear ends of the two pulling plates are slidably connected with locking mechanisms.

[0008] The utility model is further provided as follows: the lifting mechanism comprises two fixed plates fixedly connected at the two ends of the lifting rod, two holes are formed in the rear ends of the two fixed plates, and a plurality of the holes are slidably connected with pulling ropes.

[0009] Through the technical scheme, the lifting mechanism realizes rotation control of the lifting rod through the driving fixed plate, and working principles thereof include two modes of normal state maintaining and emergency triggering; in the normal state, the pre-tightening force of the tension spring maintains static locking of the lifting rod and the fixed plate; when the elevator overspeeds, the speed governor triggers the pull rope to move upward through the limiting hole, drives the fixed plate to produce a deflection displacement, and then drives the lifting rod to perform a rotation action; the guide rail and the stand constitute a guide mechanism, which ensures smooth running of the elevator along a predetermined track, wherein the stand serves as a power transmission medium to realize motion coupling of the elevator and the guide rail; the design realizes failure protection through mechanical linkage, has response sensitivity and system reliability, simultaneously simplifies redundant components of a traditional lifting mechanism, forms a compact and beautiful modular structure, and provides an efficient and low-consumption solution for an elevator safety system.

[0010] The utility model further sets up: two the front end of the stand is fixedly connected with L type board, two L type boards are rotatedly connected with two ends of the lifting rod respectively.

[0011] Through the technical scheme, the L type board provides support and positioning for the lifting rod.

[0012] The utility model further sets up: the reset mechanism includes the board no.

[0013] Through the technical scheme, the reset mechanism builds a self-balancing system through the elastic potential energy of the tension spring, realizes double-state stable control of the device; in the normal working condition, the pre-tightening force of the tension spring forms rigid constraint, maintains three-stage linkage locking of the pulling plate, the lifting rod and the fixed plate; when the elevator overspeed triggers the safety mechanism, the speed governor pulls the pull rope to produce a vertical displacement, drives the fixed plate to deflect in turn, drives the lifting rod to rotate, drives the pulling plate to deflect, and the tension spring continuously accumulates elastic potential energy in the process; when the overspeed state is removed, the tension spring releases the stored energy to drive the pulling plate to reset, drives the lifting rod to reset, the fixed plate to reset in turn through the reverse motion chain, the system recovers to the initial locking state, forms a closed-loop control logic of triggering-response-resetting; the design realizes failure protection through pure mechanical energy conversion, has the characteristics of quick response, reliable resetting and no energy consumption, simultaneously simplifies redundant components of a traditional reset structure, significantly improves maintainability and operation economy of the system.

[0014] The utility model further sets up: the locking mechanism includes the sliding slot that sets up respectively in the rear end of two pulling plates, two sliding slots are slidably connected with the slide rod respectively.

[0015] Through the technical scheme, the locking mechanism drives the sliding rod to deflect, when an accident occurs, the fixed plate drives the pull rod to rotate, drives the pull plate to deflect upward, drives the sliding groove to deflect, drives the sliding rod in the sliding groove to move upward, through a series of mechanical transmission, the effect of fast response is achieved.

[0016] The utility model further provides for: two the column inwards one side all fixedly connected with safety box, two safety box is slidably connected with two guide rail's outward one side respectively, two safety box all slidably connected with safety tongs spare in, two safety tongs spare inwards one side respectively with two sliding rod fixed connection.

[0017] Through the technical scheme, the locking mechanism drives the sliding rod to deflect, when an accident occurs, the fixed plate drives the pull rod to rotate, drives the pull plate to deflect upward, drives the sliding groove to deflect, drives the sliding rod in the sliding groove to move upward, through a series of mechanical transmission, the effect of fast response is achieved.

[0018] The utility model has the advantages that:

[0019] 1. The utility model discloses a mechanical linkage mechanism is realized elevator overspeed protection, possesses dual -state control mode, ensures that system keeps the locking state under normal condition, responds quickly and executes brake under emergency condition;Normal locking stage, the pre -tension of tension spring maintains the static locking of pull rod and fixed plate, and safety tongs spare keeps the non -contact state with guide rail;Emergency trigger stage, speed limiter drives fixed plate to deflect through pull rope, drives pull rod to rotate, and then pushes the sliding rod up through pull plate and sliding groove, makes safety tongs spare contact with guide rail and generates the clamping force, realizes forced braking;

[0020] 2. The utility model discloses through the release of elastic potential energy of tension spring, drives each mechanism reset, and system restores initial locking state;The design constructs self -balancing system through pure mechanical energy conversion, realizes the closed -loop control logic of trigger-brake-reset, and has response sensitivity and system reliability;The sliding fit of guide rail and stand ensures the movement guide precision, and the wedge braking principle of safety tongs spare guarantees the failure protection reliability;The whole structure simplifies transmission link, forms modular construction, improves response speed and reduces maintenance complexity simultaneously, provides efficient low -cost solution for elevator safety system. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the first perspective view structure of the utility model;

[0022] Figure 2 is the second perspective view of the utility model;

[0023] Figure 3 is the third perspective view of the utility model;

[0024] Figure 4 is the fourth perspective view of the utility model;

[0025] Figure 5 is the fifth perspective view of the utility model.

[0026] In the figure: 1, guide rail; 2, stand; 3, elevator; 4, pull rod; 5, pull mechanism; 501, fixed plate; 502, hole; 503, pull rope; 504, L-shaped plate; 6, pull plate; 7, reset mechanism; 701, plate two; 702, pull spring; 8, locking mechanism; 801, sliding groove; 802, sliding rod; 803, safety box; 804, safety clamp component. DETAILED DESCRIPTION

[0027] The preferred embodiments of the utility model are described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined.

[0028] Please refer to Figures 1-5The novel lifting mechanism of the embodiment comprises two guide rails 1, the outer portions of the two guide rails 1 are slidably connected with stand columns 2, the front ends of the two stand columns 2 are fixedly connected with elevators 3, the front ends of the two stand columns 2 are rotatably connected with lifting rods 4, the two ends of the lifting rod 4 are fixedly connected with lifting mechanisms 5, the lifting mechanism 5 comprises two fixed plates 501 fixedly connected with the two ends of the lifting rod 4 respectively, the rear ends of the two fixed plates 501 are provided with two holes 502, a plurality of holes 502 are slidably connected with pull ropes 503, the lifting mechanism 5 realizes the rotation control of the lifting rod 4 by driving the fixed plate 501, and the working principle is divided into two modes of normal keeping and emergency triggering; in the normal state, the pre-tightening force of the tension spring 702 maintains the static locking of the lifting rod 4 and the fixed plate 501; when the elevator 3 is overspeed, the speed limiter triggers the pull rope 503 to move upwards through the limiting hole 502, drives the fixed plate 501 to produce a deflection displacement, and then drives the lifting rod 4 to perform a rotating action; the guide rail 1 and the stand column 2 form a guide mechanism, which ensures the smooth operation of the elevator 3 along the predetermined track, wherein the stand column 2 serves as a power transmission medium to realize the motion coupling of the elevator 3 and the guide rail 1; the design realizes the failure protection through mechanical linkage, has response sensitivity and system reliability, simultaneously simplifies the redundant components of the traditional lifting mechanism 5, forms a compact and beautiful modular structure, provides an efficient and low-consumption solution for the safety system of the elevator 3, the front ends of the two stand columns 2 are fixedly connected with L-shaped plates 504, the two L-shaped plates 504 are rotatably connected with the two ends of the lifting rod 4 respectively, and the L-shaped plate 504 serves to provide support and positioning for the lifting rod 4.

[0029] As Figures 4-5As shown, the two ends of the pull rod 4 are fixedly connected with pull plates 6, the front ends of the two upright columns 2 are fixedly connected with reset mechanisms 7, the reset mechanisms 7 include plate two 701 fixedly connected at the bottom ends of the two L-shaped plates 504, pull springs 702 are arranged between the two plate two 701 and the two pull plates 6, respectively, the two ends of the pull spring 702 are fixedly connected with the top of the plate two 701 and the bottom of the pull plate 6, respectively, the reset mechanism 7 builds a self-balancing system through the elastic potential energy of the pull spring 702, realizing the double-state stable control of the device; under normal working conditions, the pre-tightening force of the pull spring 702 forms a rigid constraint, maintaining the three-level linkage locking of the pull plate 6, the pull rod 4 and the fixed plate 501; when the safety mechanism of the elevator 3 is triggered by overspeed, the speed governor pulls the pull rope 503 to produce vertical displacement, in turn drives the fixed plate 501 to deflect, drives the pull rod 4 to rotate, drives the pull plate 6 to deflect, the pull spring 702 continuously accumulates elastic potential energy in the process; after the overspeed state is removed, the pull spring 702 releases the stored energy to drive the pull plate 6 to reset, gradually drives the pull rod 4 to reset and the fixed plate 501 to reset through the reverse motion chain, the system returns to the initial locking state, forming a closed-loop control logic of trigger-response-reset; the design realizes failure protection through pure mechanical energy conversion, has the characteristics of rapid response, reliable reset and no energy consumption maintenance, at the same time, simplifies the redundant components of the traditional reset structure, significantly improves the maintainability and operation economy of the system.

[0030] As Figures 1-4As shown, the rear end of the two pull plates 6 is slidably connected with a locking mechanism 8, the locking mechanism 8 includes a slide groove 801 respectively opened in the rear end of the two pull plates 6, and the slide groove 801 is slidably connected with a slide rod 802 respectively, the locking mechanism 8 drives the slide rod 802 to deflect, when the accident occurs, the fixed plate 501 drives the pull rod 4 to rotate, drives the pull plate 6 to deflect upward, drives the slide groove 801 to deflect, drives the slide rod 802 to move upward in the slide groove 801, through a series of mechanical transmission, achieves the effect of quick response, the two upright columns 2 are fixedly connected with a safety box 803 on the inward side, the safety box 803 is slidably connected with the outward side of the two guide rails 1 respectively, the safety box 803 is slidably connected with a safety clamp component 804, the safety clamp component 804 is fixedly connected with the slide rod 802 on the inward side respectively, the safety box 803 locks the elevator 3, under normal circumstances, the safety clamp component 804 in the safety box 803 is located on both sides of the guide rail 1 and the safety clamp component 804 is not in contact with the guide rail 1, when the accident occurs, the pull rope 503 drives the fixed plate 501 to deflect, drives the pull rod 4 to rotate, drives the pull plate 6 to deflect upward, drives the slide groove 801 to move upward, drives the slide rod 802 to move upward, drives the safety clamp component 804 to move upward, when the safety clamp component 804 moves upward, the safety clamp component 804 is in contact with the guide rail 1 and abuts against the guide rail 1, generates the effect of brake, so that the elevator 3 can be braked urgently, avoids causing damage to the passengers or goods, and the safety clamp component 804 is prior art, which will not be described here too much; Convenient, fast, simple and practical, simplify the structure, convenient to install, easy to maintain and replace, reduce the manufacturing and assembling difficulty, improve the action reliability, and can quickly respond to brake, improve the safety.

[0031] The utility model discloses a pure mechanical energy conversion self-balancing system is constructed, realizes the closed -loop control logic of trigger - brake - reset, and the sliding fit of guide rail 1 and stand 2 ensures the movement direction precision, and the wedge braking principle of safety tongs part 804 guarantees the failure protection reliability, and the overall structure forms the modularization construction through the simplification transmission link, reduces the maintenance complexity while improving the response speed, provides the efficient low -consumption solution for elevator 3 safety system.

[0032] The above-mentioned is only the embodiment of the utility model, and does not restrict the patent range of the utility model, and any equivalent structure or equivalent process transformation using the utility model specification and attached drawing contents, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. A novel lifting mechanism, comprising two guide rails (1), the outer part of each of the two guide rails (1) is slidingly connected with a stand (2), the front end of each of the two stands (2) is fixedly connected with an elevator (3), characterized in that: The front end of two posts (2) is rotationally connected with a pull rod (4), both ends of the pull rod (4) are fixedly connected with a pulling mechanism (5), both ends of the pull rod (4) are fixedly connected with a pulling plate (6), and the front end of two posts (2) is fixedly connected with a reset mechanism (7). The rear end of two pulling plates (6) is slidingly connected with a locking mechanism (8).

2. A novel pulling mechanism as claimed in claim 1, wherein: The pulling mechanism (5) comprises two fixed plates (501) fixedly connected at both ends of the pull rod (4), the rear end of two fixed plates (501) is provided with two holes (502), and a plurality of holes (502) are slidingly connected with a pull rope (503).

3. A novel pulling mechanism as claimed in claim 1, wherein: The front end of two posts (2) is fixedly connected with an L-shaped plate (504), and two L-shaped plates (504) are rotationally connected with both ends of the pull rod (4).

4. A novel pulling mechanism according to claim 3, characterized in that: The reset mechanism (7) comprises a plate two (701) fixedly connected at the bottom end of two L-shaped plates (504), a tension spring (702) is arranged between two plate twos (701) and two pulling plates (6), and both ends of the tension spring (702) are fixedly connected with the top of the plate two (701) and the bottom of the pulling plate (6).

5. A novel pulling mechanism as claimed in claim 1, wherein: The locking mechanism (8) comprises a sliding groove (801) provided at the rear end of two pulling plates (6), and a sliding rod (802) is slidingly connected in two sliding grooves (801).

6. A novel pulling mechanism as claimed in claim 5, wherein: Both sides of two posts (2) are fixedly connected with a safety box (803), both sides of two safety boxes (803) are slidingly connected with two guide rails (1), and a safety clamp component (804) is slidingly connected in two safety boxes (803). Both sides of two safety clamp components (804) are fixedly connected with two sliding rods (802).

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