CN218114702U - Bidirectional electric trigger type safety tongs - Google Patents

Abstract

The utility model discloses a two-way electricity triggers formula safety tongs, be applied to the car, the car is equipped with the guide rail, two-way electricity triggers formula safety tongs includes the base, the braking plate, swing subassembly and electro-magnet, braking plate and base fixed connection, in order to form logical groove, the guide rail is worn to locate logical groove, swing subassembly articulates in the one side that the base was kept away from to the braking plate, swing subassembly includes first swing board and the second swing board that the cooperation is connected, so that first swing board and second swing board realize synchronous swing, first swing board is equipped with the first braked wheel that is located logical inslot portion, the second swing board is equipped with the second braked wheel that is located logical inslot portion, the electro-magnet is installed in the one end of swing subassembly, a first swing board and second swing board are rotated for the braking plate through the outage drive, so that first braked wheel or second braked wheel and guide rail and braking plate contact, realize the braking. The utility model discloses technical scheme aims at realizing that two-way electricity triggers formula safety tongs to the braking of guide rail ascending and descending traffic direction under the outage state.

Description

Bidirectional electric trigger type safety tongs

Technical Field

The utility model relates to an elevator accessory technical field, in particular to two-way electricity triggers formula safety tongs.

Background

At present, in the safety protection device of the existing vertical elevator, the safety tongs of the overspeed-preventing and falling-preventing safety device are mechanical, have the defects of low sensitivity, low response speed and the like, can only control the protection action of the overspeed governor in a mechanical linkage mode, have single protection content, and can only act on a guide rail to perform unidirectional overspeed prevention and falling prevention. The existing bidirectional electromagnetic safety tongs are controlled by a control circuit to act, electromagnetic force is used as acting power, a bidirectional braking element is sent between a base and a guide rail or a traction rope, and a bidirectional braking structure is utilized to force the car to be stopped by huge friction force generated between the braking element in the braked direction and the guide rail or the traction rope, so that the purpose of protecting the car from bidirectional speed reduction and stopping is achieved. However, braking cannot be achieved if power cannot be supplied to the electromagnet or if the electromagnet fails.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a two-way electricity triggers formula safety tongs, aims at realizing two-way electricity and triggers formula safety tongs and go up and down the traffic direction braking to the guide rail under the outage state.

For realizing above-mentioned mesh, the utility model provides a two-way electricity triggers formula safety tongs is applied to the car, the car is equipped with the guide rail, wherein, two-way electricity triggers formula safety tongs includes base, braking vane, swing subassembly, first braked wheel, second braked wheel and electro-magnet, the braking vane with base fixed connection, the base with the braking vane is formed with logical groove, the guide rail is worn to locate lead to the groove, swing subassembly articulate in the braking vane is kept away from the one side of base, swing subassembly includes first swing board and second swing board, first swing board with the cooperation of second swing board is connected, so that first swing board with second swing board realizes synchronous swing, first braked wheel movable mounting in on the first swing board, first braked wheel is located inside leading to the groove, along with first swing board swing wheel swing, second braked wheel movable mounting in on the second swing board, the second braked wheel is located inside, along with the swing board swing of second swing board swings, the electro-magnet install in the one end of swing subassembly is used for drive through first swing wheel and second swing board with the second brake wheel is for the second swing board contact with the second brake wheel, the brake wheel makes through groove.

In an embodiment of the present invention, the first swing plate is adjacent to one end of the second swing plate and is provided with a bump, the second swing plate corresponds to the bump and is provided with a notch, the bump is matched with the notch, so that the first swing plate is away from one end of the second swing plate and the second swing plate is away from one end of the first swing plate is close to or away from the through groove simultaneously.

In an embodiment of the present invention, the first swing plate is adjacent to one end of the bump is further provided with a first pin, the first pin is rotatably connected to the base, so that the first swing plate is rotatably connected to the base, the second swing plate is adjacent to one end of the notch is further provided with a second pin, the second pin is rotatably connected to the base, so that the second swing plate is rotatably connected to the base, the first pin and the second pin are arranged in a direction opposite to the extending direction of the through groove, and are located at two sides of the bump and the notch.

The utility model discloses an in one embodiment, first swinging plate is equipped with first bar hole, first braked wheel sliding connection in first bar hole, first bar hole is used for the restriction the slip orbit of first braked wheel, second swinging plate is equipped with second bar hole, second braked wheel sliding connection in second bar hole, the second bar hole is used for the restriction the slip orbit of second braked wheel.

In an embodiment of the present invention, a fixed plate extends from an end of the first swing plate away from the second swing plate, and the electromagnet is electromagnetically connected to the fixed plate.

In an embodiment of the present invention, the bidirectional electric trigger safety gear further includes a first spring device, the first spring device is close to the electromagnet, and is located the first swing plate is away from one side of the through groove, the first spring device is used for pushing the first swing plate is close to or away from the through groove, the first spring device includes a first abutting piece, a first supporting rod and a first pushing spring, the first abutting piece and the first swing plate are integrally formed, the first abutting piece is perpendicular to the first swing plate, and is located the first swing plate is away from one side of the first braking wheel, the first abutting piece is away from one end of the first swing plate is close to the base, the first supporting rod is fixedly connected to the base, and slidably runs through the first abutting piece, the first pushing spring is sleeved on the first supporting rod, two ends of the first pushing spring are respectively connected to one end of the first supporting rod, which is away from the base, and the first abutting piece is elastically connected to the first supporting rod.

In an embodiment of the present invention, the bidirectional electric trigger safety gear further comprises a counterweight portion, the counterweight portion includes a counterweight plate, a fixing member and a counterweight member, the first end of the counterweight plate is rotatably connected to the second brake wheel, the second end of the counterweight plate is connected to the counterweight member, the counterweight plate is movably connected to the second swinging plate through the fixing member, wherein the second end is far away from the one end of the through slot, the fixing member is disposed on the counterweight plate, and the first end of the counterweight plate is disposed between the second end of the counterweight plate and the fixing member.

In an embodiment of the present invention, a fixed plate extends from an end of the second swing plate away from the first swing plate, and the electromagnet is electromagnetically connected to the fixed plate.

In an embodiment of the present invention, the bidirectional electric trigger safety gear further includes a second spring device, the second spring device is close to the electromagnet, and is located the second swing plate is away from one side of the through groove, the second spring device is used for pushing the second swing plate is close to or away from the through groove, the second spring device includes a second abutting piece, a second support rod and a second pushing spring, the second abutting piece is integrally formed with the second swing plate, the second abutting piece is perpendicular to the second swing plate, and is located the second swing plate is away from one side of the second brake wheel, the second abutting piece is away from one end of the second swing plate is close to the base, the second support rod is fixedly connected to the base, and slidably runs through the second abutting piece, the second pushing spring is sleeved on the second support rod, two ends of the second pushing spring are respectively connected to one end of the second support rod away from the base and the second abutting piece is elastically connected.

In an embodiment of the utility model, the braking plate towards one side that leads to the groove includes first plane, second plane and third plane, first plane with the base encloses to close and forms first brake groove, first braked wheel is located first brake groove, the width in first brake groove is from keeping away from the one end of third plane reduces to being close to the one end of third plane gradually, the second plane with the base encloses to close and forms the second brake groove, the second braked wheel is located the second brake groove, the width in second brake groove is from keeping away from the one end of third plane reduces to being close to the one end of third plane gradually, the third plane with the base encloses to close and forms the guide way, the both sides wall of guide way is parallel.

The utility model discloses technical scheme is under the circumstances of electro-magnet circular telegram, the first swing board of electro-magnet actuation makes the relative base of first swing board rotate and makes logical inslot first braked wheel and guide rail separation, and because first swing board is connected with the cooperation of second swing board, first swing board drives the relative base of second swing board and rotates and make logical inslot second braked wheel and guide rail separation, make the guide rail can be at logical inslot normal motion, under the circumstances of electro-magnet outage, the electro-magnet loses the suction force, control part promotes the relative base of first swing board and rotates and make logical inslot first braked wheel and guide rail butt, the relative base of second swing board of being connected with the cooperation of first swing board rotates and makes logical inslot second braked wheel and guide rail butt, realize two-way electricity trigger formula safety tongs and move up and down the traffic direction braking to the guide rail under the outage state.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of the bidirectional electric trigger safety gear of the present invention;

fig. 2 is a schematic structural view of an embodiment of the bidirectional electric trigger type safety gear braking plate of the present invention;

fig. 3 is a schematic structural diagram of another embodiment of the bidirectional electric trigger safety gear of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name(s)
				100	Bidirectional electric trigger type safety tongs	323	Second pin shaft
10	Base seat	324	Second strip-shaped hole
				11	Through groove	40	Electromagnet
20	Brake plate	50	First spring device
				21	First plane	51	First abutting sheet
22	Second plane	52	First support rod
				23	The third plane	53	First urging spring
30	Swing assembly	60	Counterweight part
				31	First swinging plate	61	Weight member
311	First brake wheel	62	Counterweight plate
				312	Bump	63	Fixing piece
313	First pin shaft	70	Second spring device
				314	First strip-shaped hole	71	Second abutting sheet
32	Second swinging plate	72	Second support rod
				321	Second brake wheel	73	Second urging spring
322	Gap

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, descriptions in the present application as to "first," "second," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a two-way electricity triggers formula safety tongs 100 is applied to the car, the car is equipped with the guide rail.

In one embodiment, as shown in fig. 1 and 3, the bidirectional electric trigger type safety gear 100 includes a base 10, a braking plate 20, a swinging assembly 30, a first braking wheel 311, a second braking wheel 321, and an electromagnet 40, where the braking plate 20 is fixedly connected to the base 10, the base 10 and the braking plate 20 form a through slot 11, the guide rail is disposed through the through slot 11, the swinging assembly 30 is hinged to a surface of the braking plate 20 away from the base 10, the swinging assembly 30 includes a first swinging plate 31 and a second swinging plate 32, and the first swinging plate 31 can be cooperatively connected with the second swinging plate 32 to enable the first swinging plate 31 and the second swinging plate 32 to swing synchronously.

In this embodiment, the first swing plate 31 can drive the second swing plate 32 to swing synchronously when swinging, or the second swing plate 32 can drive the first swing plate 31 to swing synchronously when swinging, so that only one swing plate needs to be driven to swing to realize bidirectional control. The movable connection between the first swing plate 31 and the second swing plate 32 may be a shape-fitting fit of the over-swing plate, or may be a connection through a transmission mechanism such as a spring, which may be specifically selected according to actual situations, and is not limited in the embodiments of the present disclosure.

In this embodiment, the first brake wheel 311 may be movably mounted on the first swing plate 31, the first brake wheel 311 may be located inside the through slot 11, and the through slot 11 may be used to limit the swing range of the first brake wheel 311 as the first swing plate 31 swings. The second brake wheel 321 can be movably mounted on the second swing plate 32, the second brake wheel 321 is located inside the through slot 11 and swings with the second swing plate 32, and the electromagnet 40 is mounted at one end of the swing assembly 30 and is used for driving the first swing plate 31 and the second swing plate 32 to rotate relative to the brake plate 20 by power failure, so that the first brake wheel 311 or the second brake wheel 321 contacts with the guide rail and the brake plate 20 to realize braking.

In the embodiment, when the electromagnet 40 is powered on, the electromagnet 40 may attract the first swinging plate 31, so that the first swinging plate 31 rotates relative to the base 10 to separate the first brake wheel 311 in the through slot 11 from the guide rail. And because the first swinging plate 31 is connected with the second swinging plate 32 in a matching manner, the first swinging plate 31 drives the second swinging plate 32 to rotate relative to the base 10, so that the second brake wheel 321 in the through groove 11 is separated from the guide rail, and the guide rail can normally move in the through groove 11.

Under the condition that the electromagnet 40 is powered off, the electromagnet 40 loses suction force, the control part pushes the first swinging plate 31 to rotate relative to the base 10 to enable the first brake wheel 311 in the through groove 11 to be abutted against the guide rail, and the second swinging plate 32 which is matched and connected with the first swinging plate 31 rotates relative to the base 10 to enable the second brake wheel 321 in the through groove 11 to be abutted against the guide rail, so that the bidirectional electric trigger type safety gear 100 can brake the guide rail in the ascending and descending running directions under the power-off state.

In one embodiment, as shown in fig. 1 and 3, an end of the first swing plate 31 adjacent to the second swing plate 32 may be provided with a protrusion 312, the second swing plate 32 is provided with a notch 322 corresponding to the protrusion 312, and the protrusion 312 is matched with the notch 322, so that an end of the first swing plate 31 far from the second swing plate 32 and an end of the second swing plate 32 far from the first swing plate 31 may be simultaneously close to or far from the through slot 11.

In an embodiment, a first pin 313 may be further disposed at an end of the first swing plate 31 adjacent to the protrusion 312, the first pin 313 is rotatably connected to the base 10, so that the first swing plate 31 is rotatably connected to the base 10, a second pin 323 is further disposed at an end of the second swing plate 32 adjacent to the gap 322, the second pin 323 is rotatably connected to the base 10, so that the second swing plate 32 is rotatably connected to the base 10, and the first pin 313 and the second pin 323 are disposed opposite to each other along the extending direction of the through slot 11 and located at two sides of the protrusion 312 and the gap 322.

In the present embodiment, as shown in fig. 1, when the first swing plate 31 rotates about the first pin 313, the first swing plate 31 can drive the second swing plate 32 via the projection 312 engaged with the notch 322 on the second swing plate 32. When the first swing plate 31 rotates clockwise about the first pin 313, the first swing plate 31 drives the second swing plate 32 to rotate counterclockwise; when the first swing plate 31 rotates counterclockwise about the first pin shaft 313, the first swing plate 31 drives the second swing plate 32 to rotate clockwise. To achieve simultaneous movement of first headblock 311 and second headblock 321 toward and away from the track.

In one embodiment, as shown in fig. 1, the first swing plate 31 is provided with a first strip hole 314, the first brake wheel 311 is slidably connected to the first strip hole 314, the first strip hole 314 is used for limiting the sliding track of the first brake wheel 311, the second swing plate 32 is provided with a second strip hole 324, the second brake wheel 321 is slidably connected to the second strip hole 324, and the second strip hole 324 is used for limiting the sliding track of the second brake wheel 321.

In this embodiment, the electromagnet 40 attracts or releases one end of the first swinging plate 31 away from the second swinging plate 32 to drive the second swinging plate 32 to rotate relative to the base 10, so that the first brake wheel 311 and the second brake wheel 321 respectively slide along the first strip-shaped hole 314 and the second strip-shaped hole 324 to move away from or close to each other.

In this embodiment, in order to reduce the damage of the first brake wheel 311 and the second brake wheel 321 to the guide rail, a first strip-shaped hole 314 is formed in a position of the first swing plate 31 corresponding to the first brake wheel 311, the first brake wheel 311 is slidably connected to the first strip-shaped hole 314, a second strip-shaped hole 324 is formed in a position of the second swing plate 32 corresponding to the second brake wheel 321, and the second brake wheel 321 is slidably connected to the second strip-shaped hole 324, so that the first brake wheel 311 and the second brake wheel 321 can move in the first strip-shaped hole 314 and the second strip-shaped hole 324, when the first brake wheel 311 and the second brake wheel 321 are in contact with the guide rail, under the action of friction between the guide rail and the first brake wheel 311 and the second brake wheel 321, the first brake wheel 311 and the second brake wheel 321 can move in the first strip-shaped hole 314 and the second strip-shaped hole 324, thereby reducing stress generated at the moment when the first brake wheel 311 and the second brake wheel 321 are in contact with the guide rail, avoiding damage of the guide rail caused by the stress of instantaneous contact, and further improving the bidirectional electric trigger safety clamp 100 for use.

In this embodiment, the first bar-shaped hole 314 and the second bar-shaped hole 324 may be symmetrically disposed, the extending direction of the first bar-shaped hole 314 is consistent with the extending direction from the guide slot to the first braking slot, and the extending direction of the second bar-shaped hole 324 is consistent with the extending direction from the guide slot to the second braking slot. It is understood that, in some embodiments, the asymmetric arrangement may also be adopted, which may be selected according to practical situations, and this is not limited by the embodiments in this specification.

In an embodiment of the present invention, as shown in fig. 1, a fixing plate (not shown) extends from an end of the first swing plate 31 away from the second swing plate 32, and the electromagnet 40 is electromagnetically connected to the fixing plate (not shown).

In this embodiment, one end of the first swinging plate 31, which is far away from the first pin 313, is provided with a connecting piece integrally formed with the first swinging plate 31, the connecting piece is perpendicular to the first swinging plate 31 and is electromagnetically connected to the output end of the electromagnet 40, and the other end of the electromagnet 40 is fixed to the base 10 through a fixing piece. When the electromagnet 40 is powered on, the electromagnet 40 attracts the first swinging plate 31, so that the first brake wheel 311 on the first swinging plate 31 is far away from the guide rail.

In one embodiment, as shown in fig. 1, the bidirectional electric trigger type safety gear 100 may further include a first spring device 50, the first spring device 50 is disposed near the electromagnet 40 and on a side of the first swing plate 31 away from the through slot 11, the first spring device 50 is configured to push the first swing plate 31 to approach or depart from the through slot 11, the first spring device 50 includes a first abutting piece 51, a first supporting rod 52 and a first pushing spring 53, the first abutting piece 51 is integrally formed with the first swing plate 31, the first abutting piece 51 is perpendicular to the first swing plate 31 and is located on a side of the first swing plate 31 away from the first braking wheel 311, an end of the first abutting piece 51 away from the first swing plate 31 is close to the base 10, the first supporting rod 52 is fixedly connected to the base 10 and slidably penetrates through the first abutting piece 51, the first pushing spring 53 is sleeved on the first supporting rod 52, and two ends of the first pushing spring 53 are elastically connected to an end of the first supporting rod 52 and an end of the first supporting rod 51 away from the base 10, respectively.

In this embodiment, the first pushing spring 53 disposed between the first abutting piece 51 and the end of the first supporting rod 52 away from the base 10 is in a compressed state, so that the first pushing spring 53 always generates an elastic force pushing the first swinging plate 31 to the first braking groove.

In this embodiment, when the guide rail is braked, the electromagnet 40 is powered off and does not overcome the spring force of the first pushing spring 53 to attract the first swinging plate 31 any longer, the first pushing spring 53 in the compressed state pushes the first abutting plate and is always kept in the compressed state, and only enough elastic force is provided to enable the first brake wheel 311 of the first swinging plate 31 to be close to the guide rail and to be in contact with the guide rail, the rotation of the first swinging plate 31 drives the second swinging plate 32 to rotate, so that the second brake wheel 321 of the second swinging plate 32 is close to the guide rail and to be in contact with the guide rail, and under the friction between the first brake wheel 311 or the second brake wheel 321 and the guide rail, the ascending or descending of the guide rail is decelerated and braked, in the non-braking state, the electromagnet 40 is powered on and overcomes the spring force of the first pushing spring 53 to attract the first swinging plate 31, and the first brake wheel 311 of the first swinging plate 31 is far from the guide rail. It will be appreciated that the rotation of the first swinging plate 31 toward the first pushing spring 53 will continue to compress the first pushing spring 53, converting the attraction force of the electromagnet 40 into the elastic potential energy of the first pushing spring 53, so that the first pushing spring 53 can push the first swinging plate 31 toward the first braking slot in time when the electromagnet 40 is de-energized.

In one embodiment, as shown in fig. 1, the bidirectional electric trigger safety gear 100 may further include a weight portion 60, the weight portion 60 includes a weight plate 62, a fixing member 63 and a weight member 61, a first end of the weight plate 62 is rotatably connected to the second brake wheel 321, a second end of the weight plate 62 is connected to the weight member 61, the weight plate 62 is movably connected to the second swinging plate 32 through the fixing member 63, wherein the second end is an end away from the through slot, the fixing member 63 is disposed between the first end and the second end of the weight plate 62, and the weight member 61 is located on a side of the second swinging plate 32 facing away from the through slot 11.

In some embodiments, when the electromagnet 40 is provided on the upper swing plate side of the first swing plate 31 and the second swing plate 32, the weight portion 60 (shown in fig. 3) may not be provided. The upward swinging plate can be a swinging plate movably provided with a brake wheel for performing upward braking.

In this embodiment, when the electromagnet 40 is powered on, the electromagnet 40 attracts the first swinging plate 31 to make the first brake wheel 311 on the first swinging plate 31 far away from the guide rail, the first swinging plate 31 drives the second swinging plate 32 to rotate, so that the second brake wheel 321 on the second swinging plate 32 far away from the guide rail, in order to fix the position of the second swinging plate 32, the second swinging plate 32 is provided with the counterweight plate 62 and the counterweight 61, the counterweight plate 62 is movably connected with the second swinging plate 32 through the fixing member 63, and the counterweight 61 makes the second brake wheel 321 always at one end of the second swinging plate 32 far away from the first swinging plate 31 by using the fixing member 63 as a fulcrum, so as to ensure that the second brake wheel 321 in the through slot 11 is far away from the guide rail.

In this embodiment, when the electromagnet 40 is powered off, the electromagnet 40 no longer attracts the first swinging plate 31, the spring force of the first spring device 50 acts on the first swinging plate 31 to make the first brake wheel 311 on the first swinging plate 31 approach the guide rail, and the first swinging plate 31 drives the second swinging plate 32 to rotate against the weight of the counterweight 61 to make the second brake wheel 321 on the second swinging plate 32 approach the guide rail.

In one embodiment, as shown in fig. 3, a fixed plate (not shown) may extend from an end of the second swing plate 32 remote from the first swing plate 31, and the electromagnet 40 is electromagnetically coupled to the fixed plate.

In this embodiment, one end of the second swinging plate 32 away from the second pin 323 may have a connecting piece integrally formed with the second swinging plate 32, the connecting piece is perpendicular to the second swinging plate 32 and electromagnetically connected to the output end of the electromagnet 40, and the other end of the electromagnet 40 is fixed to the base 10 by a fixing piece. When the electromagnet 40 is powered on, the electromagnet 40 attracts the second swinging plate 32, so that the first brake wheel 311 on the second swinging plate 32 is far away from the guide rail.

In one embodiment, as shown in fig. 3, the bi-directional electric trigger safety gear 100 may further include a second spring device 70, the second spring device 70 is disposed near the electromagnet 40 and on a side of the second swing plate 32 away from the through slot 11, and the second spring device 70 may be configured to push the second swing plate 32 to approach or move away from the through slot 11.

In this embodiment, the second spring device 70 may include a second abutting piece 71, a second supporting rod 72 and a second pushing spring 73, the second abutting piece 71 is integrally formed with the second swinging plate 32, and the second abutting piece 71 is perpendicular to the second swinging plate 32 and is located on a side of the second swinging plate 32 away from the second brake wheel 321. The end of the second abutting piece 71 far away from the second swinging plate 32 is close to the base 10, the second supporting rod 72 is fixedly connected with the base 10 and slides through the second abutting piece 71, the second pushing spring 73 is sleeved on the second supporting rod 72, and two ends of the second pushing spring 73 are respectively elastically connected with the end of the second supporting rod 72 far away from the base 10 and the second abutting piece 71.

In this embodiment, the second pushing spring 73 disposed between the second abutting piece 71 and the end of the second supporting rod 72 away from the base 10 is in a compressed state, so that the second pushing spring 73 always generates an elastic force pushing the second swinging plate 32 to the second braking groove.

In this embodiment, a protrusion 312 is disposed at one end of the second swing plate 32 adjacent to the first swing plate 31, a notch 322 is disposed at the first swing plate 31 corresponding to the protrusion 312, the protrusion 312 on the second swing plate 32 is matched with the notch 322 on the first swing plate 31, and when the second swing plate 32 rotates, the second swing plate 32 drives the first swing plate 31 to approach or leave the through slot 11 simultaneously.

In this embodiment, when the guide rail is braked, the electromagnet 40 is powered off and does not overcome the spring force of the pushing spring to attract the second swinging plate 32 any longer, the pushing spring in the compressed state pushes the second abutting plate and is always kept in the compressed state, and then sufficient elastic force is provided to enable the second brake wheel 321 of the second swinging plate 32 to be close to the guide rail and to be in contact with the guide rail, the rotation of the second swinging plate 32 drives the first swinging plate 31 to rotate, so that the first brake wheel 311 of the first swinging plate 31 is close to the guide rail and is in contact with the guide rail, under the friction between the first brake wheel 311 or the second brake wheel 321 and the guide rail, the deceleration and braking of the ascending or descending of the guide rail are further realized, under the non-braking state, the electromagnet 40 is powered on and overcomes the spring force of the second pushing spring 73 to attract the second swinging plate 32, and the second brake wheel 321 of the second swinging plate 32 is far from the guide rail. It can be understood that the rotation of the second swing plate 32 toward the second pushing spring 73 will continue to compress the second pushing spring 73, and convert the attraction force of the electromagnet 40 into the compression elastic potential energy of the second pushing spring 73, so that when the electromagnet 40 is powered off, the second pushing spring 73 can push the second swing plate 32 to the second braking groove in time.

In one embodiment, as shown in fig. 1, 2 and 3, a side of the brake plate 20 facing the through slot 11 includes a first plane 21, a second plane 22 and a third plane 23, the first plane 21 corresponds to the first swing plate 31, the second plane 22 corresponds to the second swing plate 32, and the third plane 23 connects the first plane 21 and the second plane 22. The first plane 21 and the base 10 enclose to form a first braking groove, the first braking wheel 311 is located in the first braking groove, and the width of the first braking groove gradually decreases from one end far away from the third plane 23 to one end close to the third plane 23. The second plane 22 and the base 10 enclose to form a second braking groove, the second braking wheel 321 is located in the second braking groove, the width of the second braking groove gradually decreases from one end far away from the third plane 23 to one end close to the third plane 23, the third plane 23 and the base 10 enclose to form a guide groove, and two side walls of the guide groove are parallel.

In this embodiment, the width of the guide groove formed by the third plane 23 and the base 10 is greater than that of the guide rail of the car, so as to ensure that an included angle exists between the first plane 21 and the guide rail and an included angle exists between the second plane 22 and the guide rail, so that the bidirectional electrically-triggered safety gear can certainly rotate relative to the guide rail.

In this embodiment, first headblock 311 slides along first plane 21 toward or away from the guide slot and second headblock 321 slides along second plane 22 toward or away from the guide slot, and when moving, first headblock 311 and second headblock 321 simultaneously approach or move away from the guide slot.

In this embodiment, the guide rail is inserted into the through groove 11, the first brake wheel 311 and the second brake wheel 321 are also arranged in the through groove 11, and in a normal running state of the car, the first brake wheel 311 in the through groove 11 is not in contact with the guide rail, and the second brake wheel 321 is not in contact with the guide rail.

In this embodiment, in the process of braking the descending car, the first brake wheel 311 moves towards one end of the first brake groove close to the guide groove along the first plane 21, and the width of the first brake groove gradually decreases in the process of moving the first brake wheel 311, so that the first brake wheel 311 contacts with the guide rail in the first brake groove.

It will be appreciated that during braking of the descending car the first brake wheel 311 can move along the first plane 21 towards the end of the first brake groove close to the guide groove, but the gap between the guide rail and the guide groove is not sufficient for the first brake wheel 311 to pass through, and during braking the first brake wheel 311 is always located between the first plane 21 and the guide rail.

In the process of braking the descending car, although the first swing plate 31 drives the second brake wheel 321 on the second swing plate 32 to approach the guide rail, the guide rail moves upward relative to the through groove 11, and drives the second brake wheel 321 to rotate counterclockwise, so that the second brake wheel 321 rotates to one end with a wider width of the second brake groove, and therefore the second brake wheel 321 does not affect the guide rail in the process of braking the descending car.

In this embodiment, in the process of braking the upward car, the first swing plate 31 drives the second brake wheel 321 on the second swing plate 32 to move towards one end of the second brake groove close to the guide groove along the second plane 22, the width of the second brake groove gradually decreases in the moving process of the second brake wheel 321, so that the second brake wheel 321 contacts with the guide rail at the second brake groove, and as the car moves upward, the guide rail moves downward relative to the through groove 11 to drive the second brake wheel 321 to rotate clockwise, and further, the second brake wheel 321 moves towards one end with a narrower width of the second brake groove, so that the friction force between the guide rail and the second brake wheel 321, between the second brake wheel 321 and the second plane 22 is increased, and the purposes of decelerating and braking the car are achieved.

In the present embodiment, the above-described one swing plate 31 can be understood as a downward swing plate, and the above-described second swing plate 32 can be understood as an upward swing plate. In some other embodiments, the first swinging plate 31 may also be used as a downward swinging plate, and the second swinging plate 32 may also be used as an upward swinging plate, which may be selected according to the actual situation, and this is not limited in this embodiment of the present specification.

It will be understood that the second brake wheel 321 moves along the second plane 22 towards the end of the first brake groove close to the guide groove during braking of the ascending car, but the gap between the guide rail and the guide groove is not sufficient for the second brake wheel 321 to pass through, and that the second brake wheel 321 is always located between the second plane 22 and the guide rail during braking.

Although the first swing plate 31 drives the first brake wheel 311 to approach the guide rail during the process of braking the ascending car, the guide rail moves downward relative to the through groove 11, and the first brake wheel 311 is driven to rotate clockwise, so that the first brake wheel 311 rotates to the end with the wider width of the first brake groove, and the first brake wheel 311 does not affect the guide rail during the process of braking the ascending car.

In one embodiment, as shown in fig. 2, the first plane 21 and the second plane 22 are provided with a mesh.

In this embodiment, in order to improve the braking effect of first braked wheel 311 and second braked wheel 321, first plane 21, second plane 22 and third plane 23 may have a mesh pattern thereon.

When the first brake wheel 311 brakes the guide rail, the first brake wheel 311 contacts the first plane 21 and the guide rail, and the friction force between the first brake wheel 311 and the first plane 21 is increased through the reticulate pattern on the first plane 21, so that the friction force between the first brake wheel 311 and the guide rail is increased, and the car is rapidly braked.

When the second brake wheel 321 brakes the guide rail, the second brake wheel 321 contacts with the second plane 22 and the guide rail, and the friction force between the second brake wheel 321 and the second plane 22 is increased through the reticulate patterns on the second plane 22, so that the friction force between the second brake wheel 321 and the guide rail is increased, and the car is braked and stopped quickly.

In order to further improve the braking effect of the first brake wheel 311 and the second brake wheel 321, the outer surface walls of the first brake wheel 311 and the second brake wheel 321 may be provided with a mesh so as to increase the friction between the first brake wheel 311 and the second brake wheel 321 and the guide rail.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. The utility model provides a two-way electricity triggers formula safety tongs, is applied to the car, the car is equipped with the guide rail, a serial communication port, include:

a base;

the brake plate is fixedly connected with the base, a through groove is formed between the base and the brake plate, and the guide rail penetrates through the through groove;

the swinging assembly is hinged to one surface, far away from the base, of the brake plate and comprises a first swinging plate and a second swinging plate, and the first swinging plate is connected with the second swinging plate in a matched mode so that the first swinging plate and the second swinging plate can swing synchronously;

the first brake wheel is movably arranged on the first swinging plate, is positioned in the through groove and swings along with the first swinging plate;

the second brake wheel is movably arranged on the second swinging plate, is positioned in the through groove and swings along with the second swinging plate; and

the electromagnet is installed at one end of the swinging assembly and used for driving the first swinging plate and the second swinging plate to rotate relative to the braking plate through power failure, so that the first braking wheel or the second braking wheel is in contact with the guide rail and the braking plate, and the guide rail is braked.

2. The bi-directional electrical trigger safety gear of claim 1, wherein the first swing plate has a protrusion adjacent to an end of the second swing plate, the second swing plate has a notch corresponding to the protrusion, and the protrusion is engaged with the notch such that an end of the first swing plate away from the second swing plate and an end of the second swing plate away from the first swing plate are both close to or away from the through slot.

3. The bi-directional electrical trigger safety gear of claim 2, wherein a first pin is further disposed at an end of the first swinging plate adjacent to the protrusion, and the first pin is rotatably connected to the base, so that the first swinging plate is rotatably connected to the base;

a second pin shaft is further arranged at one end, adjacent to the notch, of the second swinging plate and is rotatably connected with the base, so that the second swinging plate is rotatably connected with the base;

the first pin shaft and the second pin shaft are arranged oppositely along the extending direction of the through groove and are positioned on two sides of the lug and the notch.

4. The bi-directional electrical trigger safety gear according to claim 1, wherein the first swing plate is provided with a first strip-shaped hole, the first brake wheel is slidably connected to the first strip-shaped hole, and the first strip-shaped hole is used for limiting a sliding track of the first brake wheel;

the second swinging plate is provided with a second strip-shaped hole, the second brake wheel is connected to the second strip-shaped hole in a sliding mode, and the second strip-shaped hole is used for limiting the sliding track of the second brake wheel.

5. The bi-directional electrically triggered safety gear according to claim 1, wherein a fixed plate extends from an end of the first swing plate remote from the second swing plate, and the electromagnet is electromagnetically coupled to the fixed plate.

6. The bi-directional electrical trigger safety gear of claim 5, further comprising a first spring device disposed proximate to the electromagnet and on a side of the first swing plate distal from the channel, the first spring device for urging the first swing plate toward or away from the channel, the first spring device comprising:

the first abutting piece is integrally formed with the first swinging plate, the first abutting piece is perpendicular to the first swinging plate and is positioned on one side, away from the first brake wheel, of the first swinging plate, and one end, away from the first swinging plate, of the first abutting piece is close to the base;

the first supporting rod is fixedly connected with the base and penetrates through the first abutting sheet in a sliding manner; and

the first pushing spring is sleeved on the first supporting rod, and two ends of the first pushing spring are respectively and elastically connected with one end, far away from the base, of the first supporting rod and the first abutting sheet.

7. The bi-directional electrical trigger safety gear of claim 6, wherein the bi-directional electrical trigger safety gear is further provided with a counterweight portion, the counterweight portion comprising a counterweight plate, a fixing member and a counterweight member;

the first end of the counterweight plate is rotatably connected with the second brake wheel, the second end of the counterweight plate is connected with the counterweight part, the counterweight plate is movably connected with the second swinging plate through a fixing part, and the second end is one end far away from the through groove;

the fixing member is arranged between the first end and the second end of the counterweight plate.

8. The bi-directional electrically triggered safety gear according to claim 1, wherein a fixed plate extends from an end of the second swing plate remote from the first swing plate, and the electromagnet is electromagnetically coupled to the fixed plate.

9. The bi-directional electrical trigger safety gear of claim 8, further comprising a second spring device disposed proximate to the electromagnet and on a side of the second swing plate distal from the channel, the second spring device for urging the second swing plate toward or away from the channel, the second spring device comprising:

the second abutting sheet is integrally formed with the second swinging plate, the second abutting sheet is perpendicular to the second swinging plate and is positioned on one side, away from the second brake wheel, of the second swinging plate, and one end, away from the second swinging plate, of the second abutting sheet is close to the base;

the second supporting rod is fixedly connected with the base and penetrates through the second abutting piece in a sliding manner; and

the second pushing spring is sleeved on the second supporting rod, and two ends of the second pushing spring are respectively connected with one end, far away from the base, of the second supporting rod and the second butt piece in an elastic mode.

10. A bi-directional electrical trigger safety gear according to any one of claims 1 to 9, wherein the side of the brake plate facing the channel comprises a first plane, a second plane and a third plane;

the first plane and the base are enclosed to form a first braking groove, the first braking wheel is located in the first braking groove, and the width of the first braking groove is gradually reduced from one end far away from the third plane to one end close to the third plane;

the second plane and the base are enclosed to form a second braking groove, the second braking wheel is located in the second braking groove, and the width of the second braking groove is gradually reduced from one end far away from the third plane to one end close to the third plane;

the third plane and the base enclose to form a guide groove, and two side walls of the guide groove are parallel.

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