CN218114703U - Electric trigger type safety tongs - Google Patents

Abstract

The utility model discloses an electricity triggers formula safety tongs, be applied to the car, the car is equipped with guide rail and armature, electricity triggers formula safety tongs includes braking part and control part, wherein, braking part includes the base, braking plate and braked wheel, the base has the through-groove, the guide rail is worn to locate through-groove, the braking plate rotates with the base and is connected, the braking plate is equipped with the stiff end that extends towards in the through-groove, the braked wheel rotates and connects in the stiff end, control part and the braking plate keep away from the one end swing joint of stiff end, control part is equipped with the electro-magnet, when the electro-magnet circular telegram with the armature suction, control part is used for controlling the braking plate to rotate for the base to drive the braked wheel to move in the through-groove, make braked wheel and guide rail separate; when the electromagnet is powered off and the armature is separated, the control part is used for controlling the brake plate to rotate relative to the base so as to drive the brake wheel to move in the through groove, and the brake wheel is used for braking the guide rail. The utility model discloses technical scheme aims at realizing that electricity triggers formula safety tongs brakies the guide rail under the outage state.

Description

Electric trigger type safety tongs

Technical Field

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

Background

The existing mechanical safety tongs are lifted by a speed limiter steel wire rope to realize safety braking. The braking mode has longer response time and affects safety. The conventional electric triggering type safety tongs trigger the brake plate to act by controlling the electromagnet, so that the brake wheel is close to the guide rail and contacts with the guide rail to brake, the elevator can be triggered quickly, the car brake is realized, and the brake cannot be realized under the condition that the electromagnet cannot be powered or fails.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electricity triggers formula safety tongs aims at realizing that electricity triggers formula safety tongs and brakies the guide rail under the power off state.

In order to achieve the above object, the utility model provides an electricity triggers formula safety tongs is applied to the car, the car is equipped with guide rail and armature, electricity triggers formula safety tongs includes braking part and control part, wherein, braking part includes base, braking plate and braked wheel, the base has logical groove, the guide rail is worn to locate logical groove, the braking plate with the base rotates to be connected, the braking plate is equipped with towards the stiff end that extends in the logical groove, the braked wheel rotates to be connected in the stiff end, control part with the braking plate keep away from the one end swing joint of stiff end, control part is equipped with the electro-magnet, wherein, when the electro-magnet circular telegram with the armature inhales, control part is used for controlling the braking plate rotate for the base in order to drive the braked wheel in logical groove removes, makes the braked wheel with the guide rail separation; when the electromagnet is powered off and the armature is separated, the control part is used for controlling the brake plate to rotate relative to the base so as to drive the brake wheel to move in the through groove, and the brake wheel brakes the guide rail.

In an embodiment of the present invention, the base includes a bottom plate, a first protrusion and a second protrusion, the first protrusion and the second protrusion are spaced apart from each other and are disposed on the bottom plate, the first protrusion, the second protrusion and the bottom plate enclose the through groove, the second protrusion and the bottom plate enclose the through hole that forms the through groove, the fixed end passes through the through hole and extends into the through groove.

In an embodiment of the present invention, the second protrusion is close to one side of the first protrusion includes a first plane and a second plane connected to each other, the first plane the bottom plate and the first protrusion enclose to form a guiding groove, two side walls of the guiding groove are parallel, the second plane the bottom plate and the first protrusion enclose to form a braking groove, the width of the braking groove is close to the one end of the guiding groove to keep away from the gradual increase of the one end of the guiding groove.

In an embodiment of the present invention, when the electromagnet is powered off and the armature is separated, the control portion controls the brake plate to rotate relative to the base to drive the brake wheel to move from the second position to the first position along the second plane, so that the brake wheel abuts against the guide rail.

In an embodiment of the utility model, the braking plate is including being the first section and the second section that the contained angle set up, the first section is kept away from the one end of second section is passed the through-hole, in order to form the stiff end, the second section is located the second bellying dorsad lead to one side of groove, and to the second position extends, the braking plate still includes the round pin axle, the round pin axle is located the braking plate deviates from lead to one side of groove, the round pin axle is used for making the braking plate with the base rotates and connects.

In an embodiment of the present invention, the wheel surface of the brake wheel is provided with a mesh, and/or the second plane is provided with a mesh.

In an embodiment of the present invention, the brake plate is provided with a protruding rotation axis at one end thereof far away from the through groove, and the rotation axis is used for connecting with the control part.

In an embodiment of the present invention, the control portion includes a connection main frame and at least one connection arm;

the electromagnet is fixed on the connecting main frame, and one end of the connecting arm is mutually and vertically connected with one end of the connecting main frame;

the other end of linking arm is equipped with the connecting cylinder, the axis of rotation rotates to wear to locate the connecting cylinder.

In an embodiment of the present invention, the control portion is provided with two of the connecting arms, two of the connecting arms are respectively connected perpendicularly to the two ends of the connecting main frame, two of the connecting arms the connecting cylinder is respectively connected with two of the braking portion of the rotating shaft.

In an embodiment of the present invention, the control portion further includes a control box, and the control box is used for controlling the power-on and power-off of the electromagnet.

The utility model discloses technical scheme is when the electro-magnet circular telegram, electro-magnet and armature actuation, and control unit drives the braking plate and rotates for the base, makes logical inslot braked wheel and guide rail separation, and the guide rail can be at logical inslot normal motion, and when the electro-magnet outage, electro-magnet and armature part, control unit drive the braking plate and rotate for the base, make logical inslot braked wheel and guide rail butt to realize the braking of electricity trigger formula safety tongs to the guide rail under the power-off 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 electric trigger safety gear of the present invention;

fig. 2 is a schematic structural view of an embodiment of the braking portion of the electrically triggered safety gear of the present invention;

fig. 3 is a schematic structural view of another embodiment of the braking portion of the electrically triggered safety gear of the present invention;

fig. 4 is a schematic structural diagram of another embodiment of the electric trigger safety gear of the present invention.

The reference numbers illustrate:

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 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 up, down, left, right, front, back \8230;) 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 attached 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.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to 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 an electricity triggers formula safety tongs 1000 is applied to the car, the car is equipped with guide rail and armature.

In the embodiment of the present invention, as shown in fig. 1 and 2, the above-mentioned electric trigger safety gear 1000 may include a braking portion 1 and at least one control portion 2, and the braking portion 1 may include a base 11, a braking plate 12 and a braking wheel 13.

The base 11 has a through groove 111, the guide rail can be movably inserted into the through groove 111, the extending direction of the through groove 111 can be parallel to the moving direction of the guide rail, and the through groove 111 is used for limiting the moving range of the brake wheel so as to stop the guide rail or enable the guide rail to freely pass through.

Braking board 12 with base 11 rotates and connects, braking board 12 is equipped with the orientation the stiff end 121 that extends in logical groove 111, braked wheel 13 rotate connect in stiff end 121, braking board 12 be used for base 11 rotates in order to drive braked wheel 13 is in move in logical groove 111. The control part 2 is movably connected with one end, far away from the fixed end 121, of the braking plate 12, the control part 2 is provided with an electromagnet 21, when the electromagnet 21 is powered on and is attracted by the armature, the control part 2 drives the braking plate 12 to rotate relative to the base 11 so as to drive the braking wheel 13 to move in the through groove 111, so that the braking wheel 13 is separated from the guide rail, and when the electromagnet 21 is powered off and is separated from the armature, the control part 2 is used for controlling the braking plate 12 to rotate relative to the base 11 so as to drive the braking wheel to move in the through groove, so that the braking wheel 13, the guide rail and the inner wall of the through groove 111 are contacted and clamped, and the guide rail is stopped.

The utility model discloses technical scheme is when electro-magnet 21 circular telegram, electro-magnet 21 and armature actuation, control unit 2 drives braking plate 12 and rotates for base 11, make leading to the braked wheel 13 and the guide rail separation in groove 111, the guide rail can lead to the normal motion in groove 111, when electro-magnet 21 cuts off the power supply, electro-magnet 21 separates with armature, control unit 2 drives braking plate 12 and rotates for base 11, make leading to the braked wheel 13 and the guide rail butt in groove 111, in order to realize the braking of electricity trigger formula safety tongs 1000 to the guide rail under the power-off state.

In an embodiment of the present invention, as shown in fig. 2, the base 11 may include a bottom plate 112, a first protruding portion 113 and a second protruding portion 114, the first protruding portion 113 and the second protruding portion 114 are disposed at an interval on the bottom plate 112, the first protruding portion 113, the second protruding portion 114 and the bottom plate 112 enclose to form the through groove 111, the second protruding portion 114 and the bottom plate 112 enclose to form a communicating through hole 1141 of the through groove 111, the fixing end 121 passes the through hole 1141 extends into the through groove 111.

In this embodiment, the fixing end 121 passes through the through hole 1141 and extends into the through slot 111, and the braking wheel 13 rotatably connected to the fixing end 121 is located in the through slot 111, so that the second protrusion 114 can limit the clockwise rotation of the braking plate 12. When the control part 2 drives the braking plate 12 to rotate clockwise, the braking wheel 13 in the through groove 111 can be far away from the guide rail in the through groove 111, when the braking wheel 13 is attached to the side wall of the second protruding part 114 close to the through groove 111, the control part 2 cannot continuously drive the braking plate 12 to rotate clockwise, and at the moment, the braking wheel 13 at the fixed end 121 of the braking plate 12 is located at a position which is enough to be separated from the guide rail to enable the guide rail to normally move, so that the braking wheel 13 is prevented from excessively moving.

In this embodiment, the base 11 may be integrally formed, or may be formed by splicing the bottom plate 112, the first protruding portion 113, and the second protruding portion 114. For example: the base plate 112, the first boss 113, and the second boss 114 may be welded to the base 11. The specific conditions can be selected according to actual conditions, and the embodiment of the present specification does not limit the specific conditions.

In an embodiment of the present invention, as shown in fig. 2 and 3, a side of the second protruding portion 114 close to the first protruding portion 113 may include a first plane 1142 and a second plane 1143 connected to each other, the first plane 1142, the bottom plate 112 and the first protruding portion 113 enclose to form a guiding groove 1111, two side walls of the guiding groove 1111 are parallel, the second plane 1143, the bottom plate 112 and the first protruding portion 113 enclose to form a braking groove 1112, and a width of the braking groove 1112 gradually increases from an end close to the guiding groove 1111 to an end far away from the guiding groove 1111.

In this embodiment, the guide rail is inserted into the through groove 111, the brake wheel 13 is also disposed in the through groove 111, and the brake wheel 13 in the through groove 111 is not in contact with the guide rail in the normal running state of the car.

In this embodiment, in the process of braking the car, the braking wheel 13 moves towards one end of the braking groove 1112 close to the guide groove 1111 along the second plane 1143, the width of the braking groove 1112 gradually decreases in the process of moving the braking wheel 13, so that the braking wheel 13 contacts with the guide rail in the braking groove 1112, because the car moves downwards, the guide rail moves upwards relative to the through groove 111 to drive the braking wheel 13 to rotate anticlockwise, the braking wheel 13 moves towards one end with a narrower width of the braking groove 1112, the friction force between the guide rail and the braking wheel 13, and between the braking wheel 13 and the second plane 1143 is increased, and the purposes of decelerating and braking the car are achieved.

In an embodiment of the present invention, as shown in fig. 2 and 3, when the end of the second plane 1143 away from the first plane 1142 is a first position, and the end of the second plane 1143 adjacent to the first plane 1142 is a second position, and when the electromagnet 21 is powered off and the armature is separated, the control portion 2 controls the brake plate 12 to rotate relative to the base 11, so as to drive the brake wheel 13 to move from the second position to the first position along the second plane 1143, so that the brake wheel 13 abuts against the guide rail.

In this embodiment, when the electromagnet 21 is energized and the armature is attracted, the control portion 2 drives the brake plate 12 to rotate clockwise, so that the brake wheel 13 is located at a first position, and at this time, there is no contact between the brake wheel 13 and the guide rail;

when the electromagnet 21 is powered off and the armature is not attracted, the braking plate 12 rotates anticlockwise due to the gravity of the braking plate 12, so that the braking wheel 13 moves from the first position to the second position along the second plane 1143 and contacts with the guide rail in the moving process, and the purposes of reducing the speed and stopping the lift car are achieved through the friction force between the guide rail and the braking wheel 13 as well as between the braking wheel 13 and the second plane 1143.

In this embodiment, a spring may be provided between the control portion 2 and the car. When the electromagnet 21 is electrified, the electromagnet 21 overcomes the spring force to attract the armature, and further the brake plate 12 is driven to rotate clockwise, so that the brake wheel 13 is far away from the guide rail; when the electromagnet 21 is de-energized, the spring in the compressed state is released, and the spring force pushes the control part 2 to drive the brake plate 12 to rotate counterclockwise, so that the brake wheel 13 approaches the guide rail.

In an embodiment of the present invention, as shown in fig. 2 and fig. 3, the braking plate 12 includes a first section 122 and a second section 123, which are disposed at an included angle, the first section 122 is far away from one end of the second section 123, which passes through the through hole 1141 to form the fixed end 121, the second section 123 is located on the back of the second protrusion 114, which faces away from one side of the through groove 111, and extends to the second position, the braking plate 12 further includes a pin 124, the pin 124 is disposed on one side of the through groove 111, which faces away from the braking plate 12, and the pin 124 makes the braking plate 12 rotate and connect with the base 11.

In this embodiment, the pin 124 is disposed at the connection position of the first section 122 and the second section 123, and is rotatably connected to the base 11.

In this embodiment, the included angle between the first section 122 and the second section 123 may be 90 degrees. Of course, it is understood that the included angle between the first segment 122 and the second segment 123 may be set to other angles, which may be determined according to practical situations, and this is not limited in this embodiment of the present disclosure.

In an embodiment of the present invention, a mesh is disposed on the wheel surface of the brake wheel 13, and/or a mesh is disposed on the second plane 1143.

In this embodiment, the tread of the brake wheel 13 may be provided with a mesh. In order to further enhance the braking effect of the brake wheel 13, a mesh may be provided on the outer wall of the brake wheel 13, thereby increasing the frictional force between the brake wheel 13 and the guide rail.

In this embodiment, the second plane 1143 may have a mesh pattern thereon. In order to improve the braking effect of the braking wheel 13, the second plane 1143 has a cross-grain pattern. When the brake wheel 13 brakes the guide rail, the brake wheel 13 is in contact with the second plane 1143 and the guide rail, and the friction force between the brake wheel 13 and the second plane 1143 is increased through the reticulate pattern on the second plane 1143, so that the friction force between the brake wheel 13 and the guide rail is increased, and the car is rapidly braked and stopped.

In an embodiment of the present invention, as shown in fig. 2, an end of the braking plate 12 away from the through groove 111 is convexly provided with a rotation shaft 1231, and the rotation shaft 1231 is used for being connected with the control portion 2.

In an embodiment of the present invention, as shown in fig. 1, the control portion 2 may include a connecting frame 22 and at least one connecting arm 23, the electromagnet 21 is fixed to the connecting frame 22, one end of the connecting arm 23 is perpendicular to one end of the connecting frame 22, the other end of the connecting arm 23 is provided with a connecting cylinder 231, and the rotating shaft 1231 is rotated to penetrate through the connecting cylinder 231.

In this embodiment, the connecting cylinder 231 is connected to the rotating shaft 1231, wherein the rotating shaft 1231 is located on a side of the second protruding portion 114 away from the through slot 111, the second protruding portion 114 can limit the extent of the connecting cylinder 231 rotating the braking plate 12 counterclockwise through the rotating shaft 1231, when the connecting cylinder 231 connected to the rotating shaft 1231 abuts against the side wall of the second protruding portion 114 opposite to the through slot 111, the control portion 2 cannot continuously drive the braking plate 12 to rotate counterclockwise, and at this time, the braking wheel 13 located at the first section 122 of the braking plate 12 is located at a position enough to brake the guiding rail, so as to avoid over-movement of the braking wheel 13.

In this embodiment, the control part 2 is rotatably connected to the rotating shaft 1231 through the connecting cylinder 231, and further drives the brake plate 12 to rotate around the pin shaft 124.

In an embodiment of the present invention, as shown in fig. 1, the control portion 2 may be provided with two connecting arms 23, two connecting arms 23 respectively connected to the two ends of the connecting frame 22, two connecting arms 23, two connecting cylinders 231 are respectively connected to the rotating shaft 1231 of the braking portion 1.

In this embodiment, the braking portions 1 of the two electrically triggered safety tongs 1000 are used for braking two parallel guide rails on the car, and braking the two guide rails simultaneously to ensure the balance of the car during braking.

In an embodiment of the present invention, as shown in fig. 4, the control portion 2 may include a connecting arm 23, the electromagnet 21 is fixed to one end of the connecting arm 23, the other end of the connecting arm 23 is provided with a connecting cylinder 231, and the rotating shaft 1231 penetrates through the connecting cylinder 231.

In this embodiment, each braking portion 1 may have a separate control portion 2, and the number of the triggered safety tongs 1000 may be reasonably divided according to the number of the guide rails, so as to ensure the safety of the car in operation.

In an embodiment of the present invention, the control portion 2 may further include a control box, and the control box is used for controlling the power on/off of the electromagnet 21.

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. An electrically triggered safety gear, for use in a car provided with a guide rail and an armature, characterized in that it comprises a braking part and a control part, wherein,

the braking part comprises a base, a braking plate and a braking wheel, wherein the base is provided with a through groove, the guide rail penetrates through the through groove, the braking plate is rotatably connected with the base, the braking plate is provided with a fixed end extending towards the inside of the through groove, and the braking wheel is rotatably connected to the fixed end;

the control part is movably connected with one end, far away from the fixed end, of the brake plate, and is provided with an electromagnet, wherein when the electromagnet is electrified and is attracted with the armature, the control part is used for controlling the brake plate to rotate relative to the base so as to drive the brake wheel to move in the through groove and separate the brake wheel from the guide rail; when the electromagnet is powered off and the armature is separated, the control part is used for controlling the brake plate to rotate relative to the base so as to drive the brake wheel to move in the through groove, and the brake wheel brakes the guide rail.

2. The electrical trigger safety gear according to claim 1, wherein the base comprises a bottom plate, a first protrusion and a second protrusion, the first protrusion and the second protrusion are spaced from each other and disposed on the bottom plate, the first protrusion, the second protrusion and the bottom plate form the through groove, the second protrusion and the bottom plate form a through hole communicating with the through groove, and the fixing end passes through the through hole and extends into the through groove.

3. An electrically triggered safety gear according to claim 2 wherein the side of the second boss adjacent the first boss comprises first and second connected planar surfaces;

the first plane, the bottom plate and the first protruding part are enclosed to form a guide groove, and two side walls of the guide groove are parallel;

the second plane, the bottom plate and the first bulge enclose to form a braking groove, and the width of the braking groove is gradually increased from one end close to the guide groove to one end far away from the guide groove.

4. An electrically triggered safety gear according to claim 3 wherein the end of the second plane remote from the first plane is in the first position and the end of the second plane adjacent the first plane is in the second position;

when the electromagnet is powered off and the armature is separated, the control part controls the brake plate to rotate relative to the base so as to drive the brake wheel to move from the second position to the first position along the second plane, and the brake wheel is enabled to be abutted to the guide rail.

5. An electrical trigger safety gear according to claim 4, wherein the braking plate comprises a first section and a second section arranged at an angle, the first section being arranged to extend through the through hole at an end thereof remote from the second section to form the fixed end, the second section being arranged to extend towards the second position at a side of the second projection facing away from the through groove;

the brake plate further comprises a pin shaft, the pin shaft is arranged on one side, deviating from the through groove, of the brake plate, and the pin shaft is used for enabling the brake plate to be rotatably connected with the base.

6. An electrically triggered safety gear according to claim 3, wherein the wheel surface of the braking wheel is provided with a mesh;

and/or the second plane is provided with reticulate patterns.

7. Electrically triggered safety gear according to claim 1, characterized in that a pivot axis is provided protruding from the end of the braking plate remote from the through slot, said pivot axis being adapted to be connected to the control part.

8. The electrically triggered safety gear according to claim 7, wherein the control portion comprises a connecting main frame and at least one connecting arm;

the electromagnet is fixed on the connecting main frame, and one end of the connecting arm is vertically connected with one end of the connecting main frame;

the other end of linking arm is equipped with the connecting cylinder, the axis of rotation rotates to wear to locate the connecting cylinder.

9. An electrically triggered safety gear according to claim 8 wherein said control portion is provided with two of said connecting arms, said two connecting arms being connected perpendicularly to respective ends of said connecting frame, and two of said connecting cylinders of said two connecting arms being connected to said pivot shafts of said two braking portions, respectively.

10. An electric trigger safety gear according to any one of claims 1 to 9, wherein the control part further comprises a control box for controlling the switching on and off of the electromagnet.

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