CN210176246U - Integrated backstop-lock safety device and elevator system - Google Patents
Integrated backstop-lock safety device and elevator system Download PDFInfo
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- CN210176246U CN210176246U CN201920890537.8U CN201920890537U CN210176246U CN 210176246 U CN210176246 U CN 210176246U CN 201920890537 U CN201920890537 U CN 201920890537U CN 210176246 U CN210176246 U CN 210176246U
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Abstract
An integrated backstop-lock safety device in a headspace of an elevator car, the integrated backstop-lock safety device comprising a backup pad, a locking rod, and a backstop rod; the locking rod and the stop rod move relative to the abutment and are jointly supported by the abutment on the abutment, thereby constituting an integrated stop-lock safety device; wherein when the locking bar and the stop bar are both in retracted positions relative to the support pedestal, the elevator car is in a normal passenger-carrying operating condition; when the stop bar is in the extended position relative to the bearing block, the elevator car can be in service operation along a guide rail in the elevator hoistway; when the locking bar is in the extended position relative to the bearing block, the elevator car can be in a locked state relative to the position of the guide rail. The present disclosure also relates to an elevator system that includes the integrated stopper-locking safety device.
Description
Technical Field
The present disclosure relates to an integrated stop-and-lock safety device, and more particularly, to an integrated stop-and-lock safety device in a headspace of an elevator car. The present disclosure also relates to an elevator system that includes the integrated stopper-locking safety device.
Background
The overhead space of the elevator car is usually small and the stop means and the locking means take up a large part of the space on the roof of the car.
An early arrangement was one in which the stop means and the locking means were independent of each other and located on the left and right sides of the car's headspace (as shown in fig. 1 and 2, at the two ends of the top cross-beam respectively), wherein:
1. locking device
Has locking and parking functions. The locking device can lock the car and prevent it from moving accidentally when repairing the motor in the head space of the car.
The device provides sufficient strength and sufficient safety space to protect the operator. The device has an electrical safety device. In the working situation the elevator stops running and any operations related to the running of the elevator are ineffective.
2. Stop device
Has the function of limiting. The device limits the highest travel position when a maintenance or installer in the car's headspace checks to prevent overhead crushing injury.
The device provides sufficient strength and sufficient safety space to protect the operator. The device has an electrical safety device. In the operating state, the elevator stops running and only inspection driving is allowed.
Therefore, if the two devices can be combined together, space is saved and cost is reduced.
SUMMERY OF THE UTILITY MODEL
To overcome the above-mentioned deficiencies in the prior art, the general concept according to the present disclosure proposes an integrated stopper-locking safety device in the headspace of an elevator car, comprising a bearing seat, a locking rod and a stopper rod.
The locking rod and the stop rod move relative to the abutment and are jointly supported by the abutment on the abutment, thus constituting an integrated stop-lock safety device.
When the locking rod and the stop rod are both in retracted positions relative to the bearing block, the elevator car is in a normal passenger-carrying operating state.
When the stop bar is in the extended position relative to the bearing block, the elevator car can be in service operation along the guide rails in the elevator hoistway.
When the locking bar is in the extended position relative to the bearing block, the elevator car can be in a locked state relative to the position of the guide rail.
According to one aspect of the disclosure, the extended position includes a first extended position and a second extended position.
When the locking bar and the stop bar are both in a first extended position relative to the bearing block, the elevator car is in service operation along a guide rail in the elevator hoistway.
When the stop bar is in a first extended position relative to the support block and the locking bar is in a second extended position relative to the support block, the position of the elevator car relative to the guide rail is in a locked state.
According to the above aspect of the disclosure, the substantially C-shaped bearing block is provided on one end of a top cross member of the elevator car.
And two opposite side walls of the supporting seat are respectively provided with a supporting seat opening.
The locking and stop rods are slidable through and supported in the bearing block openings.
According to the above aspects of the present disclosure, the stopper rod has a C-shape in a cross section perpendicular to a length direction thereof.
The locking levers are nested in the stop levers in a C-shape and are slidable relative to each other.
According to the above aspects of the present disclosure, a first safety switch and a second safety switch are provided on the support base.
When the locking rod and the stop rod are in retracted positions relative to the supporting seat, the first safety switch is in an activated state, meanwhile, the second safety switch is in an inactivated state, and the elevator car is in a normal passenger carrying running state.
When the locking bar and the stop bar are both in a first extended position relative to the bearing block, the first safety switch is in an inactive state while the second safety switch is in an active state, the elevator car is in a service run state along a guide rail in the elevator hoistway.
According to the above aspects of the present disclosure, a locking lever handle and a locking lever recess are provided on the locking lever.
A stop lever handle is disposed on the stop lever.
According to the above aspects of the present disclosure, the stop lever and the locking lever can be moved together between the retracted position and the first extended position by pushing the stop lever handle.
The locking lever is independently movable between the first extended position and the second extended position by pushing on the locking lever handle.
According to the above aspects of the present disclosure, a first limit switch is further provided on the stop lever.
When a part of the first limit switch is positioned in the locking rod concave part, the movement of the stop rod drives the locking rod to move together by using the first limit switch.
When the locking lever handle is pushed, the portion of the first limit switch retreats from the locking lever recess, so that the first limit switch is activated by the locking lever.
According to the above aspects of the present disclosure, a second limit switch is further provided on the stop lever.
When the stop bar handle is pushed so that the second limit switch is activated by the limit ramp provided on the bearing block, the electronic signal emitted by the second limit switch instructs the elevator control system to ensure deceleration and stopping when the elevator moves upward and approaches a safe space, thereby ensuring a safe space from the top of the elevator car to the top of the elevator hoistway.
According to the above aspects of the disclosure, a stop rod handle limit caliper is further provided on the support base for limiting the range of movement of the stop rod relative to the support base.
And a locking rod handle limiting caliper is further arranged on the stop rod and used for limiting the moving range of the locking rod relative to the stop rod and actuating the locking rod handle.
According to the above aspects of the present disclosure, a stop plate and a limit plate are provided on a guide rail on one side in the elevator shaft.
When the locking rod and the stop rod are both in a first extended position relative to the support base, the stop plate does not interfere with the locking rod and the stop rod, and the lower edge of the limit plate contacts the stop rod, thereby limiting the movement of the elevator car and further securing a safe space from the top of the elevator car to the top of the elevator hoistway.
The locking rod is inserted into the park plate when the stop rod is in a first extended position relative to the support block and the locking rod is in a second extended position relative to the support block.
According to the above aspects of the present disclosure, wherein the height of the safety space is not less than 1700 mm.
According to another aspect of the present disclosure, the stop bar and the locking bar are spaced relative to each other and disposed parallel relative to each other; a locking rod handle is arranged on the locking rod; a stop lever handle is disposed on the stop lever.
According to the above another aspect of the present disclosure, a first safety switch and a second safety switch are provided on the support base; when the locking rod and the stop rod are in retracted positions relative to the supporting seat, the first safety switch is in an activated state, meanwhile, the second safety switch is in an inactivated state, and the elevator car is in a normal passenger carrying running state; when the stop bar is in the extended position relative to the bearing block, the first safety switch is in the inactive state while the second safety switch is in the active state, the elevator car is in service operation along the guide rails in the elevator hoistway.
According to the above another aspect of the present disclosure, the stop bar can be moved solely between the retracted position and the extended position by pushing the stop bar handle; the locking lever is independently movable between the retracted position and the extended position by pushing on the locking lever handle.
According to the above another aspect of the present disclosure, a handle stopper is further provided on the fulcrum bearing for limiting a moving range of the stopper rod and the lock rod with respect to the fulcrum bearing.
According to the above another aspect of the present disclosure, two opposite edges of the handle stopper member serve to limit the range of movement of the locking lever handle with respect to the bearing; the handle limiting part further comprises two U-shaped notches which correspond to the retracted position and the first extending position respectively, and the stop rod handle can be located in the two U-shaped notches respectively.
Based on the above structure of the present disclosure, it can be seen that the present invention utilizes the supporting base to support the locking rod and the stop rod disposed in the nested structure at one end of the top cross beam of the elevator car and to provide the parking plate and the limiting plate (corresponding to the locking rod and the stop rod, respectively) on the guide rail at one side in the elevator shaft. This nesting arrangement compactly integrates the prior art stop and locking devices, thereby reducing the number of parts and the overhead space of the elevator car relative to prior art solutions.
According to another aspect of the present disclosure, an elevator system is presented, wherein the elevator system comprises an integrated stopper-locking safety device as described above.
So that the manner in which the disclosure is made in detail herein can be better understood, and in which the contributions to the art may be better appreciated, the disclosure has been summarized rather broadly. There are, of course, embodiments of the disclosure that will be described below and which will form the subject matter of the claims appended hereto.
As such, those skilled in the art will appreciate that the conception upon which this disclosure is based may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present disclosure. It is important, therefore, that the appended claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present disclosure.
Drawings
The present disclosure will be better understood and its advantages will become more apparent to those skilled in the art from the following drawings. The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations and are not intended to limit the scope of the present disclosure.
Fig. 1 shows a prior art stop device and locking device in an inactive state, which are independent of each other and located on the left and right sides of the car's head space, respectively;
fig. 2 shows a prior art stop device and locking device in an activated state, which are independent of each other and located on the left and right sides of the car's headspace;
FIG. 3 illustrates an overall schematic view of an integrated stop-lock security device according to one embodiment of the present disclosure;
FIGS. 4 and 5 illustrate a plan view and a perspective view, respectively, of an integrated backstop-lock security device in a normal passenger-carrying operating condition, in accordance with the present disclosure;
FIGS. 6 and 7 show a plan view and a perspective view, respectively, of an integrated backstop-lock safety device in service operation in accordance with the present disclosure;
fig. 8 and 9 show plan and perspective views, respectively, of an integrated backstop-lock safety device in a locked condition of the position of an elevator car relative to guide rails in accordance with the present disclosure;
fig. 10 shows an overall schematic view of an integrated stopper-lock safety device according to another embodiment of the present disclosure.
Detailed Description
Embodiments of the present disclosure are described in detail below with reference to the above-described drawings.
Referring first to fig. 1 and 2, it can be seen that the stopping device 1 and the locking device 2 in the prior art, which are carried by the top cross beam 3 of the elevator car at the two ends of the top cross beam 3, respectively, are independent of each other and located on the left and right sides of the top space of the elevator car, respectively, in the inactive state (fig. 1) and in the active state (fig. 2). Since the overhead space of the elevator car is usually small, such stop means and locking means, which are arranged separately from each other, will occupy a large part of the overhead space of the elevator car.
The general concept of the present disclosure provides an integrated backstop-lock safety device in the headspace of an elevator car that includes a bearing, a locking rod, and a stop rod.
The locking rod and the stop rod move relative to the abutment and are jointly supported by the abutment on the abutment, thus constituting an integrated stop-lock safety device.
When the locking rod and the stop rod are both in retracted positions relative to the bearing block, the elevator car is in a normal passenger-carrying operating state.
When the stop bar is in the extended position relative to the bearing block, the elevator car can be in service operation along the guide rails in the elevator hoistway.
When the locking bar is in the extended position relative to the bearing block, the elevator car can be in a locked state relative to the position of the guide rail.
Fig. 3 shows an overall schematic view of an integrated stopper-locked safety device 6 according to the present disclosure.
In fig. 3, the top cross beam 3 of the elevator car (not shown) spans between two guide rails 4, 5. An integrated backstop-lock safety device 6 according to the present disclosure is carried on one end of the top cross-beam. Fig. 3 also shows that a parking plate 7 and a limit plate 8 are provided on one of the guide rails 5. With the upward movement of the top beam 3, the lower edge of the limit plate 8 comes into contact with the integrated stop-lock safety device 6, thereby limiting the upward movement of the elevator car and securing a safe space from the top of the elevator car to the top of the elevator shaft. As the top cross member 3 moves into position with the parking plate 7, the integrated stop-lock safety device 6 engages the parking plate 7, locking the elevator car in that position.
The detailed structure and operation of the integrated stopper-lock safety device 6 will be described in detail with reference to fig. 4 to 10.
According to one embodiment of the present disclosure, an integrated stop-lock safety device 6 in the elevator car headspace is presented, said integrated stop-lock safety device 6 comprising a bearing 9, a locking rod 10 and a stop rod 11.
The locking bar 10 and the stop bar 11 move with respect to the abutment 9 and are supported by the abutment 9.
The locking bar 10 and the stop bar 11 are arranged in a nested configuration and are movable relative to each other.
When the locking bar 10 and the stop bar 11 are both in a retracted position relative to the bearing block 9 (as shown in fig. 4 and 5), the elevator car is in a normal passenger travel state.
When the locking bar 10 and the stop bar 11 are both in a first extended position relative to the bearing block 9 (as shown in fig. 6 and 7), the elevator car is in service travel along the guide rails in the elevator hoistway.
When the stop bar 11 is in a first extended position relative to the bearing block 9 and the locking bar 10 is in a second extended position relative to the bearing block 9 (as shown in fig. 8 and 9), the position of the elevator car relative to the guide rail is in a locked state.
According to the above-described embodiment of the disclosure, said bearing block 9, which is substantially C-shaped, is provided on one end of the top cross beam 3 of the elevator car.
Two opposite side walls of the supporting seat 9 are respectively provided with a supporting seat opening 9-1.
The locking bar 10 and the stop bar 11 are slidable through the bearing opening 9-1 and are supported in the bearing opening 9-1.
According to the above-described embodiment of the present disclosure, the stopper rod 11 has a C-shape in a cross section perpendicular to its length direction and has a stopper rod opening 11-2 (shown in fig. 7) along its length direction.
The locking lever 10 is nested in the C-shaped stopper rod 11 and is slidable relative to the stopper rod 11.
According to the above-described embodiment of the present disclosure, the first safety switch 12 and the second safety switch 13 are provided on the support base 9.
When the locking lever 10 and the stop lever 11 are both in the retracted position relative to the bearing block 9, the first safety switch 12 is in the activated state, while the second safety switch 13 is in the inactivated state, and the elevator car is in the normal passenger travel state.
When the locking lever 10 and the stop lever 11 are both in the first extended position relative to the bearing block 9, the first safety switch 12 is in the inactive state, while the second safety switch 13 is in the active state, and the elevator car is in service operation along the guide rails 4, 5 in the elevator hoistway.
According to the above-described embodiment of the present disclosure, a locking lever handle 10-1 and a locking lever recess 10-2 are provided on the locking lever 10. The locking lever handle 10-1 is slidable in the stop lever opening 11-2.
A stop lever handle 11-1 is provided on the stop lever 11.
According to the above-described embodiment of the present disclosure, the stop lever 11 and the locking lever 10 can be moved together between the retracted position and the first extended position by pushing the stop lever handle 11-1.
The locking lever 10 can be moved solely between the first and second extended positions by pushing on the locking lever handle 10-1.
According to the above-mentioned embodiment of the present disclosure, a first limit switch 14 is further provided on the stop lever 11.
When a part of the first limit switch 14 is located in the locking lever recess 10-2, the movement of the stopper bar 11 brings the locking lever 10 to move together with the first limit switch 14.
When the handle of the locking lever 10 is pushed, the portion of the first limit switch 14 retreats from the locking lever recess 10-2, so that the first limit switch 14 is activated by the locking lever 10.
According to the above-mentioned embodiment of the present disclosure, a second limit switch 15 is further provided on the stop lever 11.
When the stop bar handle 11-1 is pushed so that the second limit switch 15 is activated by a limit ramp (not shown) provided on the bearing block 9, the electronic signal emitted by the second limit switch 15 instructs the elevator control system to ensure deceleration and stopping when the elevator moves upwards and approaches a safe space, thereby ensuring a safe space from the top of the elevator car to the top of the elevator shaft.
According to the above embodiment of the present disclosure, a stop lever handle limit caliper 9-2 is further provided on the support base 9 for limiting the range of movement of the stop lever 11 relative to the support base 9.
A locking lever handle limit caliper 11-3 is also provided on the stop lever 11 for limiting the range of movement of the locking lever 10 relative to the stop lever 11 (i.e., the length of the locking lever extended relative to the stop lever at the second extended position) and actuating (pushing) the locking lever handle 11-1.
According to the above-described embodiment of the present disclosure, a stop plate 7 and a limit plate 8 (as shown in fig. 3) are provided on the guide rail 5 at one side in the elevator hoistway, wherein the distance of the lower edge of the limit plate 8 from the top of the elevator hoistway may satisfy the safety requirements of the operating serviceman, such as, but not limited to, not less than 1700 mm.
When the locking rod 10 and the stop rod 11 are both in the first extended position with respect to the bearing block 9, the stop plate 7 does not interfere with the locking rod 10 and the stop rod 11, while the lower edge of the limit plate 8 contacts the stop rod 11, so that the limit plate 8 limits the upward movement of the elevator car even if the second limit switch 15 fails, thus ensuring a safe space from the top of the elevator car to the top of the elevator hoistway.
When said stop rod 11 is in a first extended position with respect to said abutment 9 and said locking rod 10 is in a second extended position with respect to said abutment 9, said locking rod 10 is inserted in said parking plate 7.
According to the above-described embodiment of the present disclosure, the height of the safety space is not less than 1700 mm.
Based on the above structure, the maintenance operator will operate in the following manner.
In the normal passenger-carrying operation of the elevator shown in fig. 4 and 5, the integrated stopper-locking safety device 6 is in the retracted position, i.e., the locking rod 10 and the stopper rod 11 are both in the retracted position; the first safety switch 12 is in an active state and the second safety switch is in an inactive state.
When a service operator is ready for service, they can push the stop bar handle 11-1 to the right (changing from fig. 4-5 to fig. 6-7), and since a portion of the first limit switch 14 is located in the locking bar recess 10-2, the movement of the stop bar 11 causes the locking bar 10 to move jointly to the first extended position (at which point the stop bar handle 11-1 is blocked from further movement by the stop bar handle limit caliper 9-2) by actuation of the locking bar set handle 10-1 by the first limit switch 14 and locking bar handle limit caliper 11-3. The elevator is in service operation with the first safety switch 1 being synchronously switched off and the second safety switch 2 being synchronously connected, the second limit switch 15 being activatable by a limit ramp ensuring that the elevator decelerates and stops when moving upwards and approaching a limited safety space, which ensures that the height of the safety space from the top of the elevator car to the top of the elevator shaft is not less than 1700 mm. When the locking rod 10 and the stop rod 11 are both in the first extended position with respect to the bearing block 9, the stop plate 7 does not interfere with the locking rod 10 and the stop rod 11, while the lower edge of the limit plate 8 contacts the stop rod 11, so that even if the second limit switch 15 fails due to a fault, the limit plate 8 can limit the upward movement of the elevator car, thereby securing a safe space from the top of the elevator car to the top of the elevator hoistway.
When the elevator is run to a position where it needs to be serviced (for example the parking plate 7 is in position), the operator pushes the locking rod handle 10-1 (from fig. 6-7 to fig. 8-9), while the stop rod 11 is still in the first extended position with respect to the abutment 9 and the locking rod 10 is in the second extended position with respect to the abutment 9 (the locking rod handle limit caliper 11-3 limits the range of motion of the locking rod 10), the first limit switch 14 is withdrawn from the locking rod recess 10-2 and is thus activated, and the locking rod 10 is inserted into the parking plate 7, so that it is ensured that the elevator is parked on the guide rail.
When it is desired to return to the normal passenger-carrying operating condition, the operator can push the locking lever handle 10-1 to the left, while said stop bar 11 is still in the first extended position with respect to said abutment 9, and said locking lever 10 is returned from the second extended position with respect to said abutment 9 to the first extended position (changing from fig. 8 to fig. 6), a portion of the first limit switch 14 re-enters said locking lever recess 10-2 and thus is again in the inactive condition, and the elevator is in the service operating condition. Then the operator pushes the stop plate handle 11-1 to the left again, at this time, the stop rod 11 returns to the retracted position relative to the supporting seat 9, the movement of the stop rod 11 drives the locking rod 10 to move together to the retracted position (changing from fig. 6 to fig. 4) by the actuation of the locking plate handle 10-1 by the first limit switch 14 and the locking rod handle limit caliper 11-3, the first safety switch 1 is synchronously connected, the second safety switch 2 is synchronously disconnected, and the elevator returns to the normal passenger carrying running state.
Fig. 10 shows an overall schematic view of an integrated stopper-and-lock safety device according to another embodiment of the present disclosure, which differs from the embodiment of fig. 3-9 in that the stopper rod 11 and the lock rod 10 are spaced apart and arranged parallel with respect to each other, but the two embodiments operate in a similar manner.
A locking lever handle 10-1 is provided on the locking lever 10. A stop lever handle 11-1 is provided on the stop lever 11.
A first safety switch and a second safety switch (not shown in fig. 10) are arranged on the bearing block 9.
When the locking lever 10 and the stop lever 11 are both in the retracted position relative to the bearing block 9, the first safety switch is in the activated state, while the second safety switch is in the inactivated state, the elevator car is in the normal passenger-carrying operating state.
When the stop bar 11 is in the extended position relative to the bearing block 9, the first safety switch is in the inactive state, while the second safety switch is in the active state, and the elevator car is in service travel along the guide rails in the elevator hoistway. The lower edge of the limit plate 8 of the previous embodiment may contact the stopper bar 11, and the limit plate 8 may limit the upward movement of the elevator car, thereby securing a safety space from the top of the elevator car to the top of the elevator shaft.
The stop lever 11 can be moved solely between the retracted position and the extended position by pushing the stop lever handle 11-1.
The locking lever 10 can be moved solely between the retracted position and the extended position by pushing the locking lever handle 10-1. When the locking bar 10 is in the extended position, said locking bar 10 can be inserted into the parking plate 7 in the previous embodiment, so that it is ensured that the elevator is parked on the guide rail.
A handle stopper 16 is further provided on the support base 9 to limit the range of movement of the stopper rod 11 and the locking rod 10 relative to the support base 9.
The two opposite edges 16-1, 16-2 of the handle stop 16 serve to limit the range of movement of the locking lever handle 10-1 relative to the bearing 9.
The handle stop 16 further comprises two U-shaped notches 16-3, 16-4, corresponding to the retracted position and the first extended position, respectively, in which the stopper rod handle 11 can be located, respectively.
Based on the above structure of the present disclosure, it can be seen that the present invention utilizes the supporting seat 9 to support the locking rod 10 and the stopping rod 11 disposed in a nested structure on one end of the top cross beam 3 of the elevator car and to provide the parking plate 7 and the limiting plate 8 (corresponding to the locking rod 10 and the stopping rod 11, respectively) on the guide rail 5 on one side in the elevator shaft. This nesting arrangement compactly integrates the prior art stop and locking devices, thereby reducing the number of parts and the overhead space of the elevator car relative to prior art solutions.
According to another embodiment of the present disclosure, an elevator system is presented, wherein the elevator system comprises an integrated stopper-locking safety device 6 as described above.
While the disclosure has been described in the specification and drawings with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the disclosure as defined in the claims. Moreover, the combination and arrangement of features, elements and/or functions between specific embodiments herein is clearly understood and appreciated by those skilled in the art in light of this disclosure, that features, elements and/or functions of an embodiment may be incorporated into another specific embodiment as appropriate, unless described otherwise, above.
In addition, many modifications may be made to adapt a particular situation or material to the teachings of the disclosure without departing from the essential scope thereof. Therefore, it is intended that the disclosure not be limited to the particular embodiment illustrated by the drawings and described in the specification as the best mode presently contemplated for carrying out this disclosure, but that the disclosure will include all embodiments falling within the scope of the foregoing description and the appended claims.
Claims (18)
1. An integrated backstop-lock safety device in a headspace of an elevator car, the integrated backstop-lock safety device comprising a backup pad, a locking rod, and a backstop rod; it is characterized in that the preparation method is characterized in that,
the locking rod and the stop rod move relative to the abutment and are jointly supported by the abutment on the abutment, thereby constituting an integrated stop-lock safety device; wherein
When the locking rod and the stop rod are in retracted positions relative to the supporting seat, the elevator car is in a normal passenger carrying running state;
when the stop bar is in the extended position relative to the bearing block, the elevator car can be in service operation along a guide rail in the elevator hoistway;
when the locking bar is in the extended position relative to the bearing block, the elevator car can be in a locked state relative to the position of the guide rail.
2. An integrated stop-lock security device according to claim 1,
the extended position comprises a first extended position and a second extended position;
when the locking bar and the stop bar are both in a first extended position relative to the bearing block, the elevator car is in service operation along a guide rail in the elevator hoistway;
when the stop bar is in a first extended position relative to the support block and the locking bar is in a second extended position relative to the support block, the position of the elevator car relative to the guide rail is in a locked state.
3. An integrated stop-lock security device according to claim 2,
the substantially C-shaped bearing seat is provided on one end of a top cross beam of the elevator car;
two opposite side walls of the supporting seat are respectively provided with a supporting seat opening;
the locking and stop rods are slidable through and supported in the bearing block openings.
4. An integrated stop-lock security device according to claim 3,
the stop rod is C-shaped in a section perpendicular to the length direction of the stop rod;
the locking levers are nested in the stop levers in a C-shape and are slidable relative to each other.
5. An integrated stop-lock security device according to one of claims 1 to 4,
a first safety switch and a second safety switch are arranged on the supporting seat;
when the locking rod and the stop rod are in retracted positions relative to the supporting seat, the first safety switch is in an activated state, meanwhile, the second safety switch is in an inactivated state, and the elevator car is in a normal passenger carrying running state;
when the locking bar and the stop bar are both in a first extended position relative to the bearing block, the first safety switch is in an inactive state while the second safety switch is in an active state, the elevator car is in a service run state along a guide rail in the elevator hoistway.
6. An integrated stop-lock security device according to claim 3,
a locking rod handle and a locking rod concave part are arranged on the locking rod;
a stop lever handle is disposed on the stop lever.
7. An integrated stop-lock security device according to claim 6,
the stop lever and the locking lever are jointly movable between the retracted position and the first extended position by pushing the stop lever handle;
the locking lever is independently movable between the first extended position and the second extended position by pushing on the locking lever handle.
8. An integrated stop-lock security device according to claim 6,
the stop rod is also provided with a first limit switch;
when a part of the first limit switch is positioned in the locking rod concave part, the movement of the stop rod drives the locking rod to move together by using the first limit switch;
when the locking lever handle is pushed, the portion of the first limit switch retreats from the locking lever recess, so that the first limit switch is activated by the locking lever.
9. An integrated stop-lock security device according to claim 6,
the stop rod is also provided with a second limit switch;
when the stop bar handle is pushed so that the second limit switch is activated by the limit ramp provided on the bearing block, the electronic signal emitted by the second limit switch instructs the elevator control system to ensure deceleration and stopping when the elevator moves upward and approaches a safe space, thereby ensuring a safe space from the top of the elevator car to the top of the elevator hoistway.
10. An integrated stop-lock security device according to claim 6,
the supporting seat is also provided with a stop rod handle limiting caliper for limiting the moving range of the stop rod relative to the supporting seat;
and a locking rod handle limiting caliper is further arranged on the stop rod and used for limiting the moving range of the locking rod relative to the stop rod and actuating the locking rod handle.
11. An integrated stop-lock security device according to claim 3,
a parking plate and a limiting plate are arranged on a guide rail on one side in the elevator shaft;
when the locking rod and the stop rod are in the first extended position relative to the support base, the stop plate does not interfere with the locking rod and the stop rod, and the lower edge of the limit plate can contact the stop rod, so that the movement of the elevator car is limited, and a safe space from the top of the elevator car to the top of the elevator shaft is ensured;
the locking rod is inserted into the park plate when the stop rod is in a first extended position relative to the support block and the locking rod is in a second extended position relative to the support block.
12. An integrated stopper-locking security device as described in claim 9, wherein the height of the security space is not less than 1700 millimeters.
13. An integrated stop-lock security device according to claim 1,
the stop bar and the locking bar are spaced relative to each other and disposed parallel relative to each other;
a locking rod handle is arranged on the locking rod;
a stop lever handle is disposed on the stop lever.
14. An integrated stop-lock security device according to claim 12,
a first safety switch and a second safety switch are arranged on the supporting seat;
when the locking rod and the stop rod are in retracted positions relative to the supporting seat, the first safety switch is in an activated state, meanwhile, the second safety switch is in an inactivated state, and the elevator car is in a normal passenger carrying running state;
when the stop bar is in the extended position relative to the bearing block, the first safety switch is in the inactive state, while the second safety switch is in the active state, the elevator car is in service travel along the guide rails in the elevator hoistway.
15. An integrated stop-lock security device according to claim 14,
the stop bar is individually movable between the retracted position and the extended position by pushing the stop bar handle;
the locking lever is independently movable between the retracted position and the extended position by pushing on the locking lever handle.
16. An integrated stop-lock security device according to claim 15,
the supporting seat is also provided with a handle limiting part for limiting the moving range of the stop rod and the locking rod relative to the supporting seat.
17. An integrated stop-lock security device according to claim 16,
two opposite edges of the handle limiting part are used for limiting the moving range of the locking rod handle relative to the supporting seat;
the handle limiting part further comprises two U-shaped notches which correspond to the retracted position and the extended position respectively, and the stop rod handle can be located in the two U-shaped notches respectively.
18. An elevator system, characterized in that it comprises an integrated stopper-locked safety device according to one of the preceding claims 1 to 17.
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| CN201920890537.8U CN210176246U (en) | 2019-06-13 | 2019-06-13 | Integrated backstop-lock safety device and elevator system |
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| CN201920890537.8U CN210176246U (en) | 2019-06-13 | 2019-06-13 | Integrated backstop-lock safety device and elevator system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255320A (en) * | 2019-06-13 | 2019-09-20 | 通力电梯有限公司 | Integrated backstop-locking safety device and elevator device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110255320A (en) * | 2019-06-13 | 2019-09-20 | 通力电梯有限公司 | Integrated backstop-locking safety device and elevator device |
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