CN209797190U - Safe toe guard and elevator - Google Patents

Abstract

The utility model discloses a safe toe guard, it includes the rotor plate, folding support and be used for the fixed plate be connected with the car bottom, fixed plate and rotor plate are through folding support pin joint, borrow by expansion of folding support and fold up and make rotor plate and fixed plate expand relatively and fold up, be equipped with the touch switch who is used for controlling elevator safety circuit break-make between fixed plate and the rotor plate and be used for locking rotor plate and fixed plate in the locking device who folds up the form, borrow by the break-make of the relative or expansion control touch switch of rotor plate and fixed plate. The event the utility model discloses a safe toeguard can be through folding length regulation and the power of disconnection elevator when expanding, has advantages such as simple structure and security height. The utility model discloses still disclose an elevator.

Description

Safe toe guard and elevator

Technical Field

The utility model relates to an elevator accessory product technical field especially relates to a safe toe guard.

Background

An elevator toe guard is a device which is arranged below a car door sill and used for protecting personnel. Because the elevator can't ensure the level between sedan-chair door sill and the sill landing door sill, the setting of elevator toeguard not only can effectively prevent that passenger's foot from stretching into sedan-chair door below and causing the shearing incident when sedan-chair door sill is higher than the sill landing door, can effectively avoid the passenger to fall the casualty accident of well when the rescue is stranded passenger moreover.

The existing elevator toe guard is generally a vertically downward steel plate, the bottom of the existing elevator toe guard is bent, the elevator toe guard is directly installed in front of a sill support at the bottom of an elevator, the existing elevator toe guard is a fixed installation structure, namely, the length of the toe guard is not adjustable, the toe guard requires that the depth of an elevator pit is at least more than 110 cm, and because pipelines such as coal gas, cables, water pipes and the like are buried in the depth of 700mm to 900mm underground of an old room, the fixed toe guard is inconvenient for installing the elevator of the old room; meanwhile, when maintenance personnel utilize the elevator toe guards to rescue the elevator, the elevator is not provided with a corresponding cutting device, so that safety accidents caused by sudden operation of the elevator are easy to happen, the safety is low, and the existing requirements cannot be met.

Therefore, a safety toe guard is needed to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a safe toe guard, it can be through folding length regulation and the power of disconnection elevator when expanding, has advantages such as simple structure and security height.

Another object of the utility model is to provide an elevator, it has advantages such as the installation suitability is strong, simple structure and security are high.

In order to realize the above-mentioned purpose, the utility model discloses a safe toe guard includes rotor plate, folding support and is used for the fixed plate of being connected with the car bottom, the fixed plate with the rotor plate passes through folding support pin joint borrows by expansion and the folding up of folding support make the rotor plate with the fixed plate is expanded relatively and is folded up, the fixed plate with be equipped with the touch switch who is used for controlling elevator safety circuit break-make between the rotor plate and be used for with the rotor plate with the fixed plate locks in the locking device who folds the form, borrow by the rotor plate with the relative folding up or the control that expandes of fixed plate touch switch's break-make.

Preferably, the folding bracket includes an inclined strut, a fixed member mounted on the fixed plate, and a movable member mounted on the rotating plate, the fixed member is pivotally connected to the movable member, one end of the inclined strut is pivotally connected to the fixed member, and the other end of the inclined strut is slidably disposed on the movable member.

Specifically, the moving part has the sliding tray, the bracing corresponds the sliding tray is equipped with the locating pin, the gliding locating pin is located in the sliding tray, when folding support expandes the locating pin slides extremely the top of sliding tray.

Specifically, the safety toe guard further comprises a limiting block for locking the folding support in the unfolding state.

Specifically, the limiting block is pivoted to the moving member, the limiting block has a locking position and a releasing position, the locking position is used for locking the folding support, the limiting block constantly has a tendency of rotating from the releasing position to the locking position, and when the folding support is unfolded, the positioning pin abuts against the limiting block in the locking position.

Specifically, the safety toe guard further comprises an elastic piece, and the elastic piece constantly enables the limiting block to have the tendency of rotating from the unlocking position to the locking position.

Specifically, when the folding bracket is unfolded, the fixing piece, the moving piece and the inclined strut form a triangular structure together.

Preferably, the folding brackets are symmetrically arranged.

Preferably, the touch switch includes a communicating switch and a switch striking plate electrically connected to the elevator safety circuit, one of the communicating switch and the switch striking plate is mounted on the fixed plate, the other of the communicating switch and the switch striking plate is mounted on the rotating plate, the communicating switch and the switch striking plate are in contact with each other to be communicated when the rotating plate and the fixed plate are relatively folded, and the communicating switch and the switch striking plate are away from each other to be disconnected when the rotating plate and the fixed plate are relatively unfolded.

Specifically, when the rotating plate and the fixed plate are relatively folded, the communicating switch is in elastic contact with the switch collision plate to be communicated.

Preferably, the fixing plate extends outwards to form an extension part, and the folding bracket, the locking device and the touch switch are installed between the extension part and the rotating plate.

Specifically, the locking device is a triangular lock, the triangular lock is installed on the rotating plate, and the triangular lock locks the extending part when the rotating plate and the fixing plate are relatively folded.

in order to achieve the purpose, the utility model discloses an elevator includes car and foretell safe toe guard, safe toe guard install in the bottom of car.

Compared with the prior art, the utility model discloses a safe toe guard owing to set up the rotor plate, folding support and be used for the fixed plate be connected with the car bottom, borrow by the expansion of folding support with fold up and make rotor plate and fixed plate expand relatively and fold up, when elevator normal operating, rotor plate relative fixed plate is folded up and is made two boards mutually perpendicular, the height of safe toe guard vertical part this moment is the height of fixed plate, as long as the height of fixed plate is a bit bigger than the height of region of unblanking, the safety height has been satisfied, the incident that the passenger was cuted can be avoided taking place in the in-process of elevator operation, just so saved the space, ensure safe toe guard can not collide with pit ground, reduced the demand to the pit depth; when passengers in a fault elevator need to be rescued, maintenance personnel release the locking device and unfold the folding bracket, the rotating plate is unfolded in a rotating mode relative to the fixed plate, so that the two plates are spliced together to form a vertical plate, and the height of the vertical part of the safety toe guard is the height after the fixed plate and the rotating plate are spliced, namely the safety height is met, so that the safety accident that the passengers fall off the elevator shaft accidentally when climbing from the elevator car to the landing door can be avoided in the elevator fault process; and because the touch switch for controlling the on-off of the elevator safety loop is arranged between the fixed plate and the rotating plate, and the on-off of the touch switch is controlled by means of the relative folding or unfolding of the rotating plate and the fixed plate, when passengers in the elevator are rescued, the elevator safety loop can be automatically cut off once a maintenance worker unfolds the folding support, and the safety foot protection plate and the touch switch are matched with each other, so that the casualties caused by sudden operation of the elevator in the maintenance or rescue process can be effectively avoided, and the overall safety performance of the elevator is further improved. The safety toe guard of the utility model also has the advantage of simple structure.

Drawings

Fig. 1 is a schematic plan view of an elevator according to the present invention.

Fig. 2 is a schematic view of the safety toe guard of the present invention and the three-dimensional structure of the safety toe guard in the folded state.

Fig. 3 is a schematic plan view of the safety toe guard of fig. 2 after projection in the direction of arrow a.

Fig. 4 is a schematic plan view of the safety toe guard of fig. 2 in a deployed state.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 4, the present invention discloses an elevator, which includes a car 200 and a safety toe guard 100, wherein the safety toe guard 100 is installed at the bottom of the car 200. Wherein, the safety toe guard 100 comprises a rotating plate 1, a folding bracket 2 and a fixing plate 3 used for connecting with the bottom of the car 200, the fixing plate 3 is pivoted with the rotating plate 1 through the folding bracket 2, the rotating plate 1 and the fixing plate 3 are relatively unfolded and folded by unfolding and folding the folding bracket 2, when the fixing plate 3 and the rotating plate 1 are relatively unfolded, the fixing plate 3 and the rotating plate 1 are spliced together to form a vertical plate, when the fixing plate 3 and the rotating plate 1 are relatively folded, the fixing plate 3 and the rotating plate 1 are mutually vertical to shorten the overall vertical height of the safety toe guard 100, when the elevator normally operates, the rotating plate 1 is rotatably folded relative to the fixing plate 3 to ensure that the two plates are mutually vertical, at the moment, the vertical part of the safety toe guard 100 is the height of the fixing plate 3, as long as the height of the fixing plate 3 is a little, namely, the height of the fixed plate 3 is greater than that of the unlocking area, so that the safety height is met, the risk of shearing in the running process of the elevator does not exist, the vertical height of the safety toe guard 100 is shortened, the space is saved, the safety toe guard 100 is ensured not to collide with the ground of a pit, the depth of the pit can be at least reduced to within 600mm, and the requirement on the depth of the pit is reduced; when passengers in a fault elevator need to be rescued, a maintenance worker unfolds the folding support 2, the rotating plate 1 is unfolded in a rotating mode relative to the fixed plate 3, so that the two plates are spliced together to form a vertical plate, the height of the vertical part of the safety toe guard 100 is the height of the spliced fixed plate 3 and the rotating plate 1, the height of the spliced fixed plate 3 and the spliced rotating plate 1 is larger than or equal to 750mm, namely the safety height is met, and therefore the safety accident that the passengers accidentally fall off the elevator shaft when climbing from the car 200 to a landing door can be avoided in the elevator fault process; the safety protection foot plate 100 is matched with the touch switch 5 to effectively avoid casualties caused by sudden operation of the elevator in the maintenance or rescue process, and further improve the overall safety performance of the elevator. Preferably, the folding brackets 2 are provided in two and are symmetrically arranged, thereby improving the stability of the connection, but not limited thereto. More specifically, the following:

Referring to fig. 2 to 4, the folding bracket 2 includes an inclined strut 21, a fixed member 22, a movable member 23, an elastic member (not shown) and a limiting block 24 for locking the folding bracket 2 in an unfolded state, the fixed member 22 is pivoted with the movable member 23, the fixed member 22 is mounted on the fixed plate 3, the movable member 23 is mounted on the rotating plate 1, one end of the inclined strut 21 is pivoted with the fixed member 22, the other end of the inclined strut 21 is slidably mounted on the movable member 23, the inclined strut 21, the fixed member 22 and the movable member 23 are all rod structures, a linkage mechanism is formed between the inclined strut 21, the fixed member 22 and the movable member 23, and the inclined strut 21 is rotated to enable the fixed member 22 and the movable member 23 to approach or separate from each other by sliding the inclined strut 21 on the movable member 23, so that the folding bracket 2 is relatively folded or unfolded, thereby realizing the. Specifically, the movable member 23 has a sliding groove 231, the inclined strut 21 is provided with a positioning pin 211 corresponding to the sliding groove 231, the positioning pin 211 is slidably disposed in the sliding groove 231, the limiting block 24 is pivotally connected to the movable member 23, the limiting block 24 has a locking position for locking the folding bracket 2 and a releasing position, the elastic member constantly enables the limiting block 24 to have a tendency of rotating from the releasing position to the locking position, and the folding bracket 2 and the limiting block 24 are both disposed on the back surfaces (as shown in fig. 4) of the rotating plate 1 and the fixing plate 3, so as to avoid accidents such as shearing or falling of the elevator shaft caused by the operation of the limiting block 24 by a worker at a landing door; when the folding bracket 2 is unfolded, the positioning pin 211 slides to the top end of the sliding groove 231 (see fig. 4 for a state), the positioning pin 211 abuts against the limiting block 24 at the locking position to limit the positioning pin 211 at the top end of the sliding groove 231, at this time, the fixing member 22, the moving member 23 and the inclined strut 21 form a stable triangular structure together, so that the stability of abutting against the fixing member 22 is improved, when the folding bracket 2 is folded, the limiting block 24 overcomes the elastic force of the elastic member to rotate from the locking position to the unlocking position, the positioning pin 211 loses the abutting of the limiting block 24 and then slides to the bottom end of the sliding groove 231, and at this time, the fixing member 22, the moving member 23 and the inclined strut 21 are folded. Preferably, the elastic member is a torsion spring disposed at the stopper 24, but is not limited thereto.

Referring to fig. 2 to 4, the fixing plate 3 includes a plate body 31 and an extending portion 32 extending outward, the plate body 31 and the extending portion 32 are perpendicular to each other, and the folding bracket 2, the locking device 4 and the touch switch 5 are installed between the extending portion 32 and the rotating plate 1, so as to facilitate installation of the components. Specifically, the touch switch 5 includes a communication switch 51 and a switch striking plate 52, the communication switch 51 and the switch striking plate 52 are electrically connected with the elevator safety circuit, one of the communication switch 51 and the switch striking plate 52 is installed on the fixed plate 3, the other of the communication switch 51 and the switch striking plate 52 is installed on the rotating plate 1, in this embodiment, the communication switch 51 is installed on the extension portion 32 of the fixed plate 3, the switch striking plate 52 is installed on the rotating plate 1, the communication switch 51 is in contact with the switch striking plate 52 to be communicated when the rotating plate 1 and the fixed plate 3 are relatively folded, the communication switch 51 is far away from the switch striking plate 52 to be disconnected when the rotating plate 1 and the fixed plate 3 are relatively unfolded, the touch switch 5 can not only effectively prevent the safety accident caused by sudden operation of the elevator during rescue, but also avoid the phenomenon that the safety toe guard 100 strikes the pit ground caused by operation when the safety toe guard 100 is forgotten to, thereby achieving the purpose of preventing the safety toe guard 100 from being damaged. Preferably, the communicating switch 51 is elastically contacted with the switch striking plate 52 when the rotating plate 1 and the fixing plate 3 are relatively folded, so as to prevent the disconnection phenomenon caused by a gap between the communicating switch 51 and the switch striking plate 52, thereby ensuring the normal operation of the elevator. For example, the locking device 4 is a triangular lock, the triangular lock is installed on the rotating plate 1, the triangular lock locks the extending portion 32 when the rotating plate 1 and the fixing plate 3 are folded relatively, the triangular lock is arranged to ensure that only the worker can unfold the safety toe guard 100, and the influence of the non-professional misoperation on the normal use of the elevator is avoided.

The operation process of the elevator of the present invention is described in detail with reference to the accompanying drawings 1 to 4, as follows:

When the elevator fault needs to be salvageed and rescued, a worker releases the triangular lock, the rotating plate 1 rotates relative to the fixing plate 3 under the action of gravity, the communicating switch 51 and the switch collision plate 52 are mutually far away to enable the touch switch 5 to be disconnected, namely, the power supply of the elevator is disconnected and stops running, the folding support 2 is unfolded, the rotating plate 1 finally rotates to be in a vertical state and is spliced with the fixing plate 3 to form a vertical plate, and the height of the safety toe guard 100 is the stacking height of the rotating plate 1 and the fixing plate 3 at the moment, so that the safety standard is met to prevent passengers from accidentally falling into an elevator shaft when climbing from the lift car 200 to a landing door. After the elevator is salvageed, a worker rotates the rotating plate 1, the rotating plate 1 rotates relative to the fixing plate 3, the folding support 2 is folded, the rotating plate 1 rotates to be in a horizontal state and is perpendicular to the fixing plate 3, the height of the safety toe guard 100 is the height of the fixing plate 3 at the moment, and therefore the safety standard is met to prevent the passenger from being sheared in the normal operation process of the elevator, the triangular lock hooks the extending portion 32 of the fixing plate 3 again to lock the rotating plate 1 in the horizontal state, the communicating switch 51 and the switch striking plate 52 are close to each other and the communicating switch 51 is elastic to press the switch striking plate 52 to enable the touch switch 5 to be communicated, namely, the power supply of the elevator is communicated and the elevator starts to operate again. When the folding bracket 2 is unfolded, the movable piece 23 rotates relative to the fixed piece 22, the positioning pin 211 of the inclined strut 21 slides to the top end of the sliding groove 231, the limiting block 24 rotates from the unlocking position to the locking position under the action of the elastic piece, the positioning pin 211 abuts against the limiting block 24 at the locking position so as to limit the positioning pin 211 at the top end of the sliding groove 231, and at the moment, the fixed piece 22, the movable piece 23 and the inclined strut 21 form a stable triangular structure together so as to lock the rotating plate 1 and the fixing plate 3 in the unfolding state; when the folding bracket 2 is folded, the limit block 24 is pressed, the limit block 24 rotates from the locking position to the unlocking position against the elastic force of the elastic member, the movable member 23 rotates relative to the fixed member 22, the positioning pin 211 of the inclined strut 21 slides from the top end of the sliding groove 231 to the bottom end of the sliding groove 231 after the abutting of the limit block 24 is lost, meanwhile, the movable member 23 rotates to the horizontal state relative to the fixed member 22, and under the locking action of the triangular lock, the movable member 23, the fixed member 22 and the inclined strut 21 are folded together to form a linear structure.

Because the rotating plate 1, the folding bracket 2 and the fixing plate 3 connected with the bottom of the lift car 200 are arranged, the rotating plate 1 and the fixing plate 3 are relatively unfolded and folded by virtue of unfolding and folding of the folding bracket 2, when the lift normally operates, the rotating plate 1 is folded relative to the fixing plate 3 so that the two plates are mutually vertical, at the moment, the height of the vertical part of the safety toe guard 100 is the height of the fixing plate 3, as long as the height of the fixing plate 3 is a little greater than the height of an unlocking area, the safety height is met, safety accidents caused by shearing of passengers can be avoided in the process of running of the lift, so that the space is saved, the safety toe guard 100 is ensured not to collide with the ground of a pit, and the requirement on the depth of the pit; when passengers in a fault elevator need to be rescued, maintenance personnel release the locking device 4 and unfold the folding bracket 2, the rotating plate 1 is unfolded in a rotating mode relative to the fixed plate 3, so that the two plates are spliced together to form a vertical plate, and the height of the vertical part of the safety toe guard 100 is the height of the spliced fixed plate 3 and the rotating plate 1, namely the safety height is met, so that the safety accident that the passengers accidentally fall off the elevator shaft when climbing from the elevator car 200 to a landing door can be avoided in the elevator fault process; and because the touch switch 5 for controlling the on-off of the elevator safety loop is arranged between the fixed plate 3 and the rotating plate 1, and the on-off of the touch switch 5 is controlled by means of the relative folding or unfolding of the rotating plate 1 and the fixed plate 3, when passengers in the elevator are rescued, once a maintenance worker unfolds the folding support 2, the elevator safety loop can be automatically cut off, and the safety foot protection plate 100 and the touch switch 5 are matched with each other, so that casualties caused by sudden operation of the elevator in the maintenance or rescue process can be effectively avoided, and the overall safety performance of the elevator is further improved. The safety toe guard 100 of the present invention has the advantage of simple structure.

The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the scope of the present invention is not limited to the above embodiments.

Claims (13)

1. The safety toe guard is characterized by comprising a rotating plate, a folding support and a fixing plate connected with the bottom of a car, wherein the fixing plate is pivoted with the rotating plate through the folding support, the folding support is unfolded and folded to enable the rotating plate to be relatively unfolded and folded with the fixing plate, a touch switch used for controlling the on-off of an elevator safety loop and a locking device used for locking the rotating plate and the fixing plate in a folded state are arranged between the fixing plate and the rotating plate, and the rotating plate and the fixing plate are relatively folded or unfolded to control the on-off of the touch switch.

2. The safety toe guard according to claim 1, wherein the folding bracket comprises an inclined strut, a fixed member mounted on the fixed plate and a movable member mounted on the rotating plate, the fixed member is pivotally connected to the movable member, one end of the inclined strut is pivotally connected to the fixed member, the other end of the inclined strut is slidably mounted on the movable member, and the movable member can be moved toward or away from the fixed member by rotating the inclined strut and sliding the inclined strut on the movable member, so that the folding bracket can be folded or unfolded relatively.

3. The safety toe guard according to claim 2, wherein the movable member has a sliding groove, the inclined strut is provided with a positioning pin corresponding to the sliding groove, the positioning pin is slidably arranged in the sliding groove, and the positioning pin slides to the top end of the sliding groove when the folding bracket is unfolded.

4. The safety toe guard of claim 3, further comprising a stop for locking the folding bracket in the unfolded configuration.

5. The safety toe guard according to claim 4, wherein the stop block is pivotally connected to the movable member, the stop block has a locking position for locking the folding bracket and a release position, the stop block has a tendency to rotate from the release position to the locking position, and the positioning pin abuts against the stop block in the locking position when the folding bracket is unfolded.

6. The safety toe guard of claim 5, further comprising a spring that constantly urges the stop block to rotate from the unlocked position to the locked position.

7. The safety toe guard of claim 2, wherein the fixed member, the movable member and the diagonal brace together form a triangular structure when the folding bracket is unfolded.

8. The safety toe guard of claim 1, wherein the folding brackets are symmetrically arranged.

9. The safety toe guard according to claim 1, wherein the touch switch includes a communication switch and a switch striking plate electrically connected to an elevator safety circuit, one of the communication switch and the switch striking plate is installed at the fixed plate, the other of the communication switch and the switch striking plate is installed at the rotating plate, the communication switch is in contact with the switch striking plate to communicate when the rotating plate is folded relative to the fixed plate, and the communication switch is far away from the switch striking plate to be disconnected when the rotating plate is unfolded relative to the fixed plate.

10. The safety toe guard of claim 9, wherein the communication switch is in resilient contact with the switch striker for communication when the rotating plate and the fixed plate are folded relative to each other.

11. The safety toe guard of claim 1, wherein the fixed plate extends outwardly to form an extension, and the folding bracket, locking device and touch switch are mounted between the extension and the rotating plate.

12. the safety toe guard of claim 11, wherein the locking device is a triangular lock, the triangular lock is mounted on the rotating plate, and the triangular lock locks the extension when the rotating plate and the fixed plate are folded relative to each other.

13. An elevator comprising a car, characterized in that it further comprises a safety toe guard according to any of claims 1 to 12, which is mounted to the bottom of the car.