CN108163670B - Lifting device for safety tongs of elevator - Google Patents
Lifting device for safety tongs of elevator Download PDFInfo
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- CN108163670B CN108163670B CN201810069768.2A CN201810069768A CN108163670B CN 108163670 B CN108163670 B CN 108163670B CN 201810069768 A CN201810069768 A CN 201810069768A CN 108163670 B CN108163670 B CN 108163670B
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- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 230000005540 biological transmission Effects 0.000 claims abstract description 54
- 230000033001 locomotion Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000010009 beating Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Types And Forms Of Lifts (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses an elevator safety tongs lifting device, which comprises: the device comprises a rotating shaft, a first supporting frame, a second supporting frame, a first lifting plate, a second lifting plate, a first transmission mechanism and a second transmission mechanism. The rotation shaft is respectively arranged on the first support frame and the second support frame, and is respectively connected with the first lifting plate and the second lifting plate. The first transmission mechanism is arranged on the first lifting plate, and the second transmission mechanism is arranged on the second lifting plate. Therefore, when the speed limiter enables the first lifting plate to act, the first lifting plate can enable one safety gear to act through the first transmission mechanism, and the driven second lifting plate also enables the other safety gear to act through the second transmission mechanism. The first support frame and the second support frame are respectively arranged at the bottom of the car frame. Therefore, the elevator safety gear lifting device avoids the connection of the lower end safety gear with a longer lifting rod, so that the elevator safety gear lifting device can trigger the safety gear to act more stably in the elevator stopping process.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an elevator safety tongs lifting device.
Background
Elevator safety gear is a safety device for emergency stopping of an elevator. When the overspeed governor detects overspeed of the elevator, the overspeed governor enables the elevator safety tongs to act through the steel wire rope and the safety lifting device, so that the elevator is stopped and clamped on the guide rail. Conventionally, elevator safety tongs are installed inside a vertical beam at both ends of a lower beam of a car frame or at both ends of the lower beam.
In order to operate the safety gear of an elevator, an overhead safety lift device is generally used. The lifting device is arranged at the upper part of the car frame and is connected with the safety tongs at the lower end through a longer lifting rod. Like this for this lifting device triggers safety tongs action route overlength, thereby lead to this safety lifting device unstable in the braking process, bump with other parts easily, and then seriously influence the stability of elevator safety.
Disclosure of Invention
Based on this, it is necessary to provide an elevator safety gear lifting device that facilitates stable triggering of the safety gear action.
The technical scheme is as follows:
An elevator safety gear lifting device comprising: a rotating shaft; the first support frame and the second support frame are both used for being arranged at the bottom of the car frame, the rotating shaft is rotatably connected with the first support frame, and the rotating shaft is rotatably connected with the second support frame; the first lifting plate is connected with the rotating shaft, the first lifting plate can drive the rotating shaft to rotate around the axis of the rotating shaft, the second lifting plate is connected with the rotating shaft, and the rotating shaft can drive the second lifting plate to rotate; the first transmission mechanism is connected with the first lifting plate, the second transmission mechanism is connected with the second lifting plate, the first transmission mechanism is used for controlling one safety tongs to act, and the second transmission mechanism is used for controlling the other safety tongs to act.
The elevator safety tongs lifting device is characterized in that the rotating shafts are respectively arranged on the first supporting frame and the second supporting frame, one end of each rotating shaft is connected with the first lifting plate, and the other end of each rotating shaft is connected with the second lifting plate. Therefore, in the emergency stop process of the elevator, the speed limiter enables the first lifting plate to act, and the first lifting plate drives the second lifting plate to act by rotating the rotating shaft. Meanwhile, the first transmission mechanism is arranged on the first lifting plate, and the second transmission mechanism is arranged on the second lifting plate. Therefore, when the speed limiter enables the first lifting plate to act, one safety gear can be enabled to act through the first transmission mechanism by the first lifting plate, and the second lifting plate driven by the first lifting plate can also enable the other safety gear to act through the second transmission mechanism. Therefore, the elevator can realize bidirectional braking by using the elevator safety tongs lifting device, and the elevator safety tongs lifting device is favorable for stably triggering the safety tongs to act. In addition, because the first support frame and the second support frame are respectively arranged at the bottom of the car frame, the elevator safety tongs lifting device is arranged in the elevator in a lower mode. Therefore, the elevator safety gear lifting device avoids the connection of the lower end safety gear with a longer lifting rod, so that the elevator safety gear lifting device can trigger the safety gear to act more stably in the elevator stopping process. Meanwhile, the structure of the lifting device of the elevator safety tongs is greatly simplified, and the occupied space of the lifting device of the elevator safety tongs in an elevator is reduced.
Further, the elevator safety tongs lifting device further comprises a torsion spring, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected with the rotating shaft, and the other end of the torsion spring is connected with the first supporting frame.
Further, a limiting clamping block is arranged on the rotating shaft, a mounting rod is arranged on the limiting clamping block, a first mounting hole is formed in the mounting rod, and one end of the torsion spring penetrates through the first mounting hole and is connected with the rotating shaft.
Further, the limiting clamping block comprises a clamping block body, a first clamping part, a second clamping part, a third clamping part and a fourth clamping part, wherein the first clamping part and the second clamping part are respectively arranged at one end of the clamping block body at intervals, the first clamping part and the second clamping part are matched to clamp the rotating shaft, the third clamping part and the fourth clamping part are respectively arranged at the other end of the clamping block body at intervals, and the third clamping part and the fourth clamping part are matched to clamp the mounting rod; the first clamping part is provided with a first fixing hole, the second clamping part is provided with a second fixing hole corresponding to the first fixing hole, the third clamping part is provided with a third fixing hole, and the fourth clamping part is provided with a fourth fixing hole corresponding to the third fixing hole.
Further, the first support frame comprises a first top plate, a first bottom plate, a first side plate and a second side plate, wherein a second mounting hole is formed in the first top plate and is used for being arranged opposite to the mounting hole in the bottom of the car frame, two ends of the first side plate are respectively connected with the first top plate and the first bottom plate, and a first bearing hole is formed in the first side plate; two ends of the second side plate are respectively connected with the first top plate and the first bottom plate, a third mounting hole is formed in the second side plate, and one end of the torsion spring penetrates through the third mounting hole to be connected with the first support frame; and the first top plate and/or the first bottom plate is/are provided with a limiting rod, and the limiting rod is used for limiting the rotation of the first pulling plate.
Further, the elevator safety tongs lifting device further comprises a switch beating plate and a safety switch, wherein the safety switch is arranged on the first support frame or the second support frame, one end of the switch beating plate is connected with the rotating shaft, and the other end of the switch beating plate is used for triggering the safety switch to work.
Further, the second supporting frame comprises a second top plate, a second bottom plate, a third side plate and a fourth side plate, a fourth mounting hole is formed in the second top plate and is used for being arranged opposite to the mounting hole in the bottom of the car frame, two ends of the third side plate are respectively connected with the second top plate and the second bottom plate, and a second bearing hole is formed in the third side plate; the fourth side plate is connected with the second bottom plate, and the safety switch is arranged on the fourth side plate.
Further, the first pulling plate, the second pulling plate, the first transmission mechanism and the second transmission mechanism are respectively positioned at two sides of the rotating shaft.
Further, a fifth mounting hole is formed in the first lifting plate, a first protruding portion is formed in one end, far away from the second supporting frame, of the rotating shaft, the first protruding portion is matched with the fifth mounting hole, so that the first lifting plate can drive the rotating shaft to rotate, the first protruding portion protrudes out of the fifth mounting hole, a first inserting hole is formed in the first protruding portion, and the first inserting hole is used for inserting an inserting piece to limit movement of the first lifting plate; the second lifting plate is provided with a sixth mounting hole, one end, far away from the first support frame, of the rotating shaft is provided with a second protruding portion, the second protruding portion is matched with the sixth mounting hole to enable the rotating shaft to drive the second lifting plate to rotate, the second protruding portion protrudes out of the sixth mounting hole, the second protruding portion is provided with a second inserting hole, and the second inserting hole is used for inserting an inserting piece to limit movement of the second lifting plate.
Further, the first transmission mechanism is a first link mechanism, the first link mechanism comprises a first link, a second link, a third link and a first bracket, two ends of the second link are respectively connected with the first link and the third link in a rotating way, a first through hole is formed in the second link, a first support shaft is arranged on the first bracket, the first support shaft penetrates into the first through hole to enable the second link to be arranged on the first bracket, the first bracket is used for being arranged on the upright post, the first link is connected with the first lifting plate in a rotating way, and one end, far away from the second link, of the third link is used for being connected with one safety tongs in a rotating way; the second transmission mechanism is a second link mechanism, the second link mechanism comprises a fourth link, a fifth link, a sixth link and a second support, two ends of the fifth link are respectively connected with the fourth link and the sixth link in a rotating mode, a second through hole is formed in the fifth link, a second support shaft is arranged on the second support, the second support shaft penetrates into the second through hole to enable the fifth link to be installed on the second support, the second support is used for being installed on the upright column, the fourth link is connected with the second lifting plate in a rotating mode, and one end, away from the fifth link, of the sixth link is used for being connected with the other safety tongs in a rotating mode.
Drawings
Fig. 1 is a schematic structural view of an elevator safety gear lifting device according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a limiting clamp block according to an embodiment of the present invention;
FIG. 3 is a schematic view illustrating a connection structure between a first support frame and a torsion spring according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a connection structure between a second support frame and a safety switch according to an embodiment of the present invention;
FIG. 5 is a schematic view of a connection structure of a first pulling plate, a first supporting frame and a first transmission mechanism according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a connection structure of a second pulling plate, a second supporting frame and a second transmission mechanism according to an embodiment of the invention.
Reference numerals illustrate:
100. An elevator safety gear lifting device 110, a rotating shaft 111, a limit clamp block 1111, a mounting rod 1112, a clamp block body 1113, a first clamp part 1114, a second clamp part 1115, a third clamp part 1116, a fourth clamp part 1117, a first fixing hole 1118, a third fixing hole 1119, a fifth fixing hole 112, a first convex part 113, a second convex part 120, a first supporting frame 121, a first top plate 1211, a second mounting hole 122, a first bottom plate 1221, a limit rod 123, a first side plate 1231, a first bearing hole 124, a second side plate 1241, a third mounting hole 125, a fifth side plate 130, a second supporting frame, 131, a second top plate, 1311, a fourth mounting hole, 132, a second bottom plate, 133, a third side plate, 1331, a second bearing hole, 134, a fourth side plate, 140, a first lifting plate, 141, a fifth mounting hole, 150, a second lifting plate, 151, a sixth mounting hole, 160, a first transmission mechanism, 161, a first connecting rod, 162, a second connecting rod, 163, a third connecting rod, 164, a first bracket, 165, a first supporting shaft, 170, a second transmission mechanism, 171, a fourth connecting rod, 172, a fifth connecting rod, 173, a sixth connecting rod, 174, a second bracket, 175, a second supporting shaft, 180, a torsion spring, 190, a safety switch, 191, a switch plate, 200, and a safety tongs.
Detailed Description
The present invention will be further described in detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" in this specification do not denote a particular quantity or order, but rather are used for distinguishing between similar or identical items.
Referring to fig. 1, in one embodiment, an elevator safety gear lifting device 100 includes: the device comprises a rotating shaft 110, a first supporting frame 120, a second supporting frame 130, a first lifting plate 140, a second lifting plate 150, a first transmission mechanism 160 and a second transmission mechanism 170. The first supporting frame 120 and the second supporting frame 130 are both used for being installed at the bottom of the car frame. The rotation shaft 110 is rotatably connected with the first support frame 120, and the rotation shaft 130 is rotatably connected with the second support frame 130. The first lifting plate 140 is connected to the rotating shaft 130, and the first lifting plate 140 can drive the rotating shaft 110 to rotate around the axis of the rotating shaft 110. The second pulling plate 150 is connected to the rotating shaft 110, and the rotating shaft 110 can drive the second pulling plate 150 to rotate. The first transmission mechanism 160 is connected to the first pulling plate 140. The second transmission mechanism 170 is connected to the second pulling plate 150. The first transmission 160 is used to control the actuation of one of the safety gear 200. The second transmission mechanism is used for controlling the action of the other safety gear 200.
In the elevator safety gear pulling device 100, the rotation shafts 110 are respectively mounted on the first support frame 120 and the second support frame 130. One end of the rotation shaft 110 is connected to the first pulling plate 140, and the other end of the rotation shaft 110 is connected to the second pulling plate 150. Thus, the speed limiter causes the first pulling plate 140 to act during an emergency stop of the elevator. The first pulling plate 140 drives the second pulling plate 150 to act by rotating the rotating shaft 110. Meanwhile, the first transmission mechanism 160 is installed on the first pulling plate 140, and the second transmission mechanism 170 is installed on the second pulling plate 150. Therefore, when the speed limiter makes the first pulling plate 140 act, the first pulling plate 140 can make one of the safety tongs 200 act through the first transmission mechanism 160, and the second pulling plate 150 driven by the first pulling plate 140 can also make the other safety tongs 200 act through the second transmission mechanism 170. Thus, by using the elevator safety gear lifting device 100, the elevator can realize bidirectional stopping, which is beneficial to the stable triggering of the safety gear 200 action of the elevator safety gear 200 lifting device 100. In addition, since the first support frame 120 and the second support frame 130 are respectively installed at the bottom of the car frame, the elevator safety gear lifting device 100 is arranged in the elevator in a lower mode. Therefore, the elevator safety gear lifting device 100 avoids the connection of the lower safety gear 200 with a longer lifting rod, and avoids the collision of the elevator safety gear lifting device 100 with other components during operation, so that the elevator safety gear lifting device 100 triggers the safety gear 200 to act more stably during the elevator stopping process. Meanwhile, as the elevator safety gear lifting device 100 is arranged in the elevator in a lower mode, the structure of the elevator safety gear lifting device 100 is greatly simplified, and the occupied space of the elevator safety gear lifting device 100 in the elevator is reduced.
In one embodiment, the elevator safety gear lifting device 100 further includes a torsion spring 180. The torsion spring 180 is sleeved on the rotating shaft 110, one end of the torsion spring 180 is connected with the rotating shaft 110, and the other end of the torsion spring 180 is connected with the first supporting frame 120. Therefore, in the elevator stopping process, the first pulling plate 140 needs to overcome a certain torsion force caused by the torsion spring 180 to drive the rotation shaft 110 and the first transmission mechanism 160 to act. Therefore, the misoperation of the elevator safety gear lifting device 100 to the safety gear 200 caused by slight vibration of the elevator can be effectively avoided, and the reliability of the elevator safety gear lifting device 100 for triggering action operation of the safety gear 200 is further improved.
Further, a limiting clamp block 111 is mounted on the rotating shaft 110. The limiting clamp block 111 is provided with a mounting rod 1111. The mounting lever 1111 is provided with a first mounting hole. One end of the torsion spring 180 is coupled to the rotation shaft 110 through the first mounting hole. Thus, when the torsion spring is installed, only one end of the torsion spring 180 needs to be inserted into the first installation hole, which is beneficial to the rapid disassembly and assembly of the elevator safety gear lifting device 100.
Further, referring to fig. 2, the limiting clamp block 111 includes a clamp block body 1112, a first clamp portion 1113, a second clamp portion 1114, a third clamp portion 1115, and a fourth clamp portion 1116. The first clamping portion 1113 and the second clamping portion 1114 are respectively arranged at one end of the clamping block body 1112 at intervals, and the first clamping portion 1113 and the second clamping portion 1114 cooperate to clamp the rotating shaft 110. The third clamping portion 1115 and the fourth clamping portion 1116 are respectively arranged at the other end of the clamp block body 1112 at intervals, and the third clamping portion 1115 and the fourth clamping portion 1116 cooperate to clamp the mounting rod 1111. In this way, the rotation shaft 110 is clamped by the first clamping part 1113 and the second clamping part 1114, so that the limit clamp block 111 is fixed on the rotation shaft 110. Meanwhile, the mounting lever 1111 is clamped by the engagement of the third clamping portion 1115 and the fourth clamping portion 1116, thereby securing the mounting lever 1111 to the rotating shaft 110. Therefore, the torsion spring 180 is fixed by the limiting clamp block 111 in the embodiment, so that the installation operation of the torsion spring 180 is more convenient. The first clamping portion 1113 is provided with a first fixing hole 1117. The second clamping part 1114 is provided with a second fixing hole corresponding to the first fixing hole 1117. Therefore, the fixing member passes through the first fixing hole 1117 and the second fixing hole, so that the limiting clamp block 111 is more tightly connected with the rotating shaft 110. Similarly, a third fixing hole 1118 is provided in the third clamping portion 1115. The fourth clamping portion 1116 is provided with a fourth fixing hole corresponding to the third fixing hole 1118. In this way, the fixing piece passes through the third fixing hole 1118 and the fourth fixing hole, so that the mounting rod 1111 and the limiting clamp block 111 are more tightly connected. In the present embodiment, the first clamping portion 1113 and/or the second clamping portion 1114 is provided with a fifth fixing hole 1119. The rotation shaft 110 is provided with a sixth fixing hole. The fifth fixing hole 1119 is provided corresponding to the sixth fixing hole. The clamp block body 1112 and the rotating shaft 110 can be more tightly connected by the fixing member passing through the fifth fixing hole 119 and the sixth fixing hole, thereby improving the stability of the elevator safety gear pulling device 100.
Referring to fig. 3, in one embodiment, the first supporting frame 120 includes a first top plate 121, a first bottom plate 122, a first side plate 123, and a second side plate 124. The first top plate 121 is provided with a second mounting hole 1211. The second mounting hole 1211 is provided to be opposite to the mounting hole of the bottom of the cage. In this way, the elevator safety gear lifting device 100 can be arranged at the bottom of the car frame. The two ends of the first side plate 123 are respectively connected with the first top plate 121 and the first bottom plate 122, and the first side plate 121 is provided with a first bearing hole 1231. The rotation shaft 110 is installed in the first bearing hole 1231. Two ends of the second side plate 124 are respectively connected with the first top plate 121 and the first bottom plate 122, and a third mounting hole 1241 is formed in the second side plate 124. One end of the torsion spring 180 is connected to the first supporting frame 120 through a third mounting hole 1241. Since one end of the torsion spring 180 is fixed by inserting it into the third mounting hole 1241, this allows the torsion spring 180 to be quickly and stably mounted on the first support frame 120.
Further, the first top plate 121 or the first bottom plate 122 is provided with a limiting rod 1221, or the first top plate 121 and the first bottom plate 122 are provided with limiting rods 1221. The stopper rod 1221 is used to restrict the rotation of the first pulling plate 140. When the first lifting plate 140 has realized triggering the motion of the safety gear 200, the limiting rod 1221 limits the rotation of the first lifting plate 140, so that the first lifting plate 140 does not perform corresponding rotation triggering any more, which is beneficial to protecting the lifting device 100 of the safety gear of the elevator.
Still further, the first support bracket 120 further includes a fifth side plate 125. Both ends of the fifth side plate 125 are connected to the first top plate 121 and the first bottom plate 122, respectively. The purpose is to make the structure of the first supporting frame 120 more stable.
Referring to fig. 4, in one embodiment, the elevator safety gear lifting apparatus 100 further includes a switch plate 191 and a safety switch 190. The safety switch 190 is mounted on the first support frame 120 or the second support frame 130. One end of the switch board 191 is connected with the rotating shaft 110, and the other end of the switch board 191 is used for triggering the safety switch 190 to work. Thus, when the first pulling plate 140 drives the rotation shaft 110 to rotate, the switch plate 191 rotates accordingly. When the switch board 191 rotates to a certain position, the safety switch 190 is triggered to work, so that the elevator stops running. Therefore, the elevator safety gear lifting device 100 of the embodiment can simultaneously start the safety gear 200 and the safety switch 190 to work, thereby ensuring that the elevator can be safely and stably stopped.
Specifically, the safety switch 190 is mounted on the second support 130. The switch plate 191 is mounted on the rotation shaft 100 at a side close to the second support frame 130 such that the position of the switch plate 191 is distinguished from the mounting position of the torsion spring 180. Thus, the structural arrangement of the elevator safety gear lifting device 100 is more reasonable.
Further, the second supporting frame 130 includes a second top plate 131, a second bottom plate 132, a third side plate 133, and a fourth side plate 134. The second top plate 131 is provided with a fourth mounting hole 1311. The fourth mounting hole 1311 is provided to correspond to a mounting hole in the bottom of the car frame. Both ends of the third side plate 133 are respectively connected with the second top plate 131 and the second bottom plate 132, and second bearing holes 1331 are formed in the third side plate 133. The fourth side plate 134 is connected to the second bottom plate 132, and a safety switch 190 is mounted on the fourth side plate 134.
Still further, the second support 130 includes a U-shaped plate and an L-shaped bent plate. The L-shaped bent plate is fixed on one side of the U-shaped plate. One end of the switch plate 191 is fixed on the rotating shaft 110 by bolts, and the switch plate 191 is of an integrated structure.
Alternatively, in the present embodiment, the specific manner of triggering the safety switch 190 is not limited, and it is only required that the safety switch 190 can be triggered to operate simultaneously when the safety gear 200 is triggered by the elevator safety gear pulling device 100. Thus, the triggering of the safety switch 190 may be a contact or non-contact triggering.
In one embodiment, the first pulling plate 140 and the second pulling plate 150, and the first transmission mechanism 160 and the second transmission mechanism 170 are respectively located at two sides of the rotating shaft 110. It can be seen that the first pulling plate 140 and the second pulling plate 150 are located on the same side of the rotating shaft 110, and the first transmission mechanism 160 and the second transmission mechanism 170 are located on the other side of the rotating shaft 110. In this way, the reasonable arrangement of the elevator safety gear lifting device 100 is facilitated, so that the elevator safety gear lifting device 100 can better realize the triggering function thereof.
Referring to fig. 5 and 6, in one embodiment, a fifth mounting hole 141 is provided on the first pulling plate 140. The end of the rotating shaft 110 far away from the second supporting frame 130 is provided with a first convex part 112. The first protrusion 112 and the fifth mounting hole 141 cooperate to enable the first pulling plate 140 to drive the rotation shaft 110 to rotate, the first protrusion 112 protrudes out of the fifth mounting hole 141, and a first insertion hole is formed in the protruding first protrusion 112. The first insertion hole restricts the movement of the first pulling plate 140 by the insert, and the second pulling plate 150 is provided with a sixth mounting hole 151. The end of the rotating shaft 110 far away from the first supporting frame 120 is provided with a second convex part 113. The second protruding portion 113 is matched with the sixth mounting hole 151, so that the rotating shaft 110 can drive the second lifting plate 150 to rotate, the second protruding portion 113 protrudes out of the sixth mounting hole 151, and a second insertion hole is formed in the protruding second protruding portion 113. The second insertion hole restricts the movement of the second pulling plate 150 by the insert. Therefore, the first protrusion 112 and the fifth mounting hole 141 cooperate to enable the first pulling plate 140 to drive the rotation shaft 110 to rotate, and the second protrusion 113 and the sixth mounting hole 151 cooperate to enable the rotation shaft 110 to drive the second pulling plate 150 to rotate, so that the elevator safety gear pulling device 100 realizes a bidirectional triggering function. Meanwhile, the present embodiment adopts a combination manner, so that the elevator safety gear pulling device 100 can be assembled quickly. The first protrusion 112 is provided with a first insertion hole and the second protrusion 113 is provided with a second insertion hole, so that the first pulling plate 140 and the second pulling plate 150 are prevented from being separated from the rotation shaft 110.
Alternatively, in the present embodiment, the connection manner of the first pulling plate 140 and the rotation shaft 110, and the connection manner of the second pulling plate 150 and the rotation shaft 110 are not limited. It is only required that the first pulling plate 140 drives the rotation shaft 110 to rotate and the rotation shaft 110 drives the second pulling plate 150 to rotate.
Specifically, the fifth mounting hole 141 is a non-circular hole, wherein the non-circular hole is a hole of other shape than a circular hole, such as: square holes, rectangular holes, oval holes, or holes of other shapes. The first protrusion 112 exactly matches the fifth mounting hole 141. The sixth mounting hole 151 is a non-circular hole, and the second protrusion 113 is exactly matched with the sixth mounting hole 151.
In one embodiment, the first transmission 160 is a first linkage and the second transmission 170 is a second linkage.
Alternatively, in the present embodiment, the first transmission mechanism 160 is not limited to the first link mechanism, and the second transmission mechanism 170 is the second link mechanism. It is only necessary that the first pulling plate 140 operates the safety gear 200 through the first transmission mechanism 160, and the second pulling plate 150 operates the safety gear 200 through the second transmission mechanism 170.
Specifically, the first transmission mechanism 160 and the second transmission mechanism 170 may also be a gear and rack matching transmission. For example, the first pulling plate 140 drives the gear to rotate, and the gear is meshed with the rack, so that the rack can reciprocate, and the safety gear 200 can work normally.
Further, the first link mechanism includes a first link 161, a second link 162, a third link 163, and a first bracket 164. Two ends of the second connecting rod 162 are respectively connected with the first connecting rod 161 and the third connecting rod 163 in a rotating way, and a first through hole is formed in the second connecting rod 162. The first bracket is provided with a first support shaft 165. The first support shaft 165 penetrates into the first through hole such that the second link 162 is mounted on the first bracket 164. The first bracket 164 is configured to be mounted to a post. The first link 161 is rotatably coupled to the first pulling plate 140. The end of the third link 163 remote from the second link 162 is adapted for pivotal connection with one of the safety tongs 200. As can be seen, the first pulling plate 140 rotates to drive the first link 161 to move, so that the second link 162 rotates around the first supporting shaft 165 on the first bracket 164, and the third link 163 reciprocates up and down, thereby operating the safety gear 200. The second link mechanism includes a fourth link 171, a fifth link 172, a sixth link 173, and a second bracket 174. Both ends of the fifth connecting rod 172 are respectively connected with the fourth connecting rod 171 and the sixth connecting rod 173 in a rotating way, and a second through hole is arranged on the fifth connecting rod 172. The second bracket 174 is provided with a second supporting shaft 175, the second supporting shaft 175 penetrates into the second through hole so that the fifth connecting rod 172 is mounted on the second bracket 174, and the second bracket 174 is used for being mounted on the upright. The fourth link 171 is rotatably connected to the second pulling plate 150. The end of the sixth link 173 remote from the fifth link 172 is adapted for rotational connection with another safety gear 200. Similarly, the second pulling plate 150 rotates to drive the fourth link 171 to move, so that the fifth link 172 rotates around the second supporting shaft 175 on the second bracket 174, and the sixth link 173 reciprocates up and down, so that the safety gear 200 works.
Alternatively, the present embodiment is not limited to the above specific structure of the link mechanism, as long as it is satisfied that the first pulling plate 140 is driven by the first link mechanism to operate the safety gear 200, and the second pulling plate 150 is driven by the second link mechanism to operate the safety gear 200.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. An elevator safety gear lifting device, comprising:
A rotating shaft;
the first support frame and the second support frame are both used for being arranged at the bottom of the car frame, the rotating shaft is rotatably connected with the first support frame, and the rotating shaft is rotatably connected with the second support frame;
The first lifting plate is connected with the rotating shaft, the first lifting plate can drive the rotating shaft to rotate around the axis of the rotating shaft, the second lifting plate is connected with the rotating shaft, and the rotating shaft can drive the second lifting plate to rotate;
The first transmission mechanism is connected with the first lifting plate, the second transmission mechanism is connected with the second lifting plate, the first transmission mechanism is used for controlling one safety tongs to act, and the second transmission mechanism is used for controlling the other safety tongs to act;
The device also comprises a torsion spring, wherein the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected with the rotating shaft, and the other end of the torsion spring is connected with the first supporting frame; the first support frame comprises a first top plate, a first bottom plate, a first side plate and a second side plate, wherein a second mounting hole is formed in the first top plate and is used for being arranged opposite to the mounting hole in the bottom of the car frame, two ends of the first side plate are respectively connected with the first top plate and the first bottom plate, and a first bearing hole is formed in the first side plate; two ends of the second side plate are respectively connected with the first top plate and the first bottom plate, a third mounting hole is formed in the second side plate, and one end of the torsion spring penetrates through the third mounting hole to be connected with the first support frame; and the first top plate and/or the first bottom plate is/are provided with a limiting rod, and the limiting rod is used for limiting the rotation of the first pulling plate.
2. The lifting device of the elevator safety tongs according to claim 1, wherein a limiting clamping block is arranged on the rotating shaft, a mounting rod is arranged on the limiting clamping block, a first mounting hole is arranged on the mounting rod, and one end of the torsion spring penetrates through the first mounting hole and is connected with the rotating shaft.
3. The lifting device of the elevator safety tongs according to claim 2, wherein the limiting clamping block comprises a clamping block body, a first clamping part, a second clamping part, a third clamping part and a fourth clamping part, the first clamping part and the second clamping part are respectively arranged at one end of the clamping block body at intervals, the first clamping part and the second clamping part are matched to clamp the rotating shaft, the third clamping part and the fourth clamping part are respectively arranged at the other end of the clamping block body at intervals, and the third clamping part and the fourth clamping part are matched to clamp the mounting rod; the first clamping part is provided with a first fixing hole, the second clamping part is provided with a second fixing hole corresponding to the first fixing hole, the third clamping part is provided with a third fixing hole, and the fourth clamping part is provided with a fourth fixing hole corresponding to the third fixing hole.
4. The elevator safety gear lifting device according to claim 1, further comprising a switch board and a safety switch, wherein the safety switch is mounted on the first support frame or the second support frame, one end of the switch board is connected with the rotating shaft, and the other end of the switch board is used for triggering the safety switch to work.
5. The elevator safety gear lifting device according to claim 4, wherein the second supporting frame comprises a second top plate, a second bottom plate, a third side plate and a fourth side plate, a fourth mounting hole is formed in the second top plate and is used for being arranged opposite to the mounting hole in the bottom of the car frame, two ends of the third side plate are respectively connected with the second top plate and the second bottom plate, and a second bearing hole is formed in the third side plate; the fourth side plate is connected with the second bottom plate, and the safety switch is arranged on the fourth side plate.
6. The elevator safety gear pulling device of claim 4, wherein the safety switch is mounted on a second support frame and the switch striking plate is mounted on the rotating shaft on a side adjacent to the second support frame.
7. The elevator safety gear lifting device according to claim 1, wherein the first supporting frame further comprises a fifth side plate, and two ends of the fifth side plate are respectively connected with the first top plate and the first bottom plate.
8. The elevator safety gear lifting device according to claim 1, wherein the first lifting plate and the second lifting plate are respectively located at two sides of the rotating shaft, and the first transmission mechanism and the second transmission mechanism are respectively located at two sides of the rotating shaft.
9. The elevator safety gear lifting device according to claim 1, wherein a fifth mounting hole is formed in the first lifting plate, a first protruding portion is formed in one end, away from the second supporting frame, of the rotating shaft, the first protruding portion and the fifth mounting hole are matched to enable the first lifting plate to drive the rotating shaft to rotate, the first protruding portion protrudes out of the fifth mounting hole, a first inserting hole is formed in the first protruding portion, and the first inserting hole is used for inserting an inserting piece to limit movement of the first lifting plate;
The second lifting plate is provided with a sixth mounting hole, one end, far away from the first support frame, of the rotating shaft is provided with a second protruding portion, the second protruding portion is matched with the sixth mounting hole to enable the rotating shaft to drive the second lifting plate to rotate, the second protruding portion protrudes out of the sixth mounting hole, the second protruding portion is provided with a second inserting hole, and the second inserting hole is used for inserting an inserting piece to limit movement of the second lifting plate.
10. The lifting device of an elevator safety gear according to any one of claims 1 to 9, wherein the first transmission mechanism is a first link mechanism, the first link mechanism comprises a first link, a second link, a third link and a first bracket, two ends of the second link are respectively connected with the first link and the third link in a rotating way, a first through hole is formed in the second link, a first support shaft is arranged on the first bracket, the first support shaft penetrates into the first through hole to enable the second link to be arranged on the first bracket, the first bracket is used for being arranged on an upright post, the first link is connected with the first lifting plate in a rotating way, and one end, far away from the second link, of the third link is used for being connected with one of the safety gears in a rotating way;
The second transmission mechanism is a second link mechanism, the second link mechanism comprises a fourth link, a fifth link, a sixth link and a second support, two ends of the fifth link are respectively connected with the fourth link and the sixth link in a rotating mode, a second through hole is formed in the fifth link, a second support shaft is arranged on the second support, the second support shaft penetrates into the second through hole to enable the fifth link to be installed on the second support, the second support is used for being installed on the upright column, the fourth link is connected with the second lifting plate in a rotating mode, and one end, away from the fifth link, of the sixth link is used for being connected with the other safety tongs in a rotating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810069768.2A CN108163670B (en) | 2018-01-24 | 2018-01-24 | Lifting device for safety tongs of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810069768.2A CN108163670B (en) | 2018-01-24 | 2018-01-24 | Lifting device for safety tongs of elevator |
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| Publication Number | Publication Date |
|---|---|
| CN108163670A CN108163670A (en) | 2018-06-15 |
| CN108163670B true CN108163670B (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810069768.2A Active CN108163670B (en) | 2018-01-24 | 2018-01-24 | Lifting device for safety tongs of elevator |
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| Country | Link |
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| CN (1) | CN108163670B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112551302A (en) * | 2020-12-29 | 2021-03-26 | 日立电梯（中国）有限公司 | Elevator, speed limiting device mounting structure and lifting mechanism |
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| CN102344072A (en) * | 2011-06-28 | 2012-02-08 | 苏州新达电扶梯部件有限公司 | Counter-weight safety tongs of elevator |
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| CN204369348U (en) * | 2014-12-24 | 2015-06-03 | 湖州南浔固源电梯部件有限公司 | Highly sensitive safety tongs shift mechanism |
| CN205998797U (en) * | 2016-08-25 | 2017-03-08 | 西继迅达（许昌）电梯有限公司 | A kind of Novel car bottom safety tongs shift mechanism |
| CN107187988A (en) * | 2017-06-30 | 2017-09-22 | 快意电梯股份有限公司 | Brake device for elevator and its shift mechanism |
| CN207932824U (en) * | 2018-01-24 | 2018-10-02 | 日立电梯（中国）有限公司 | Elevator safety gear pulling apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008004021A1 (en) * | 2006-06-30 | 2008-01-10 | Otis Elevator Company | Safety device for securing minimum spaces at the top or bottom of an elevator shaft being inspected, and elevator having such safety devices |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344072A (en) * | 2011-06-28 | 2012-02-08 | 苏州新达电扶梯部件有限公司 | Counter-weight safety tongs of elevator |
| CN204369357U (en) * | 2014-12-24 | 2015-06-03 | 湖州南浔固源电梯部件有限公司 | A kind of villa elevator Knapsack-rack |
| CN204369348U (en) * | 2014-12-24 | 2015-06-03 | 湖州南浔固源电梯部件有限公司 | Highly sensitive safety tongs shift mechanism |
| CN205998797U (en) * | 2016-08-25 | 2017-03-08 | 西继迅达（许昌）电梯有限公司 | A kind of Novel car bottom safety tongs shift mechanism |
| CN107187988A (en) * | 2017-06-30 | 2017-09-22 | 快意电梯股份有限公司 | Brake device for elevator and its shift mechanism |
| CN207932824U (en) * | 2018-01-24 | 2018-10-02 | 日立电梯（中国）有限公司 | Elevator safety gear pulling apparatus |
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| Publication number | Publication date |
|---|---|
| CN108163670A (en) | 2018-06-15 |
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