CN219636669U - Elevator buffer structure and elevator assembly - Google Patents

Abstract

The utility model relates to the technical field of elevators, in particular to an elevator buffer structure and an elevator assembly. The elevator buffer structure includes: a buffer cylinder having a buffer chamber; the buffer rod is provided with a first end and a second end which are oppositely arranged, the first end is positioned in the buffer cavity and is in sliding connection with the inner wall of the buffer cavity, and the buffer cavity is divided into a first cavity and a second cavity along the axial direction of the buffer cavity by the first end; the second end is positioned outside the buffer cavity and used for abutting against the elevator; the first elastic piece is arranged in the first cavity, one end of the first elastic piece is propped against the first end, the other end of the first elastic piece is propped against the wall surface of the first cavity, and the first elastic piece is compressed or restored along with the movement of the buffer rod; the second elastic piece is arranged in the second cavity and sleeved on the buffer rod, one end of the second elastic piece is propped against the first end, and the other end of the second elastic piece is propped against the wall surface of the second cavity. The utility model has the advantages that: the rebound of the buffer rod can be reduced to impact the elevator.

Description

Elevator buffer structure and elevator assembly

Technical Field

The utility model relates to the technical field of elevators, in particular to an elevator buffer structure and an elevator assembly.

Background

The elevator buffer is a safety device capable of relieving impact force when an elevator is out of control, is generally arranged in an elevator pit, and aims to minimize personnel injury caused by stall of an elevator moving part when the elevator moving part descends or the moving part impacts the pit, and the elevator is regulated to be provided with the buffer in national standards so as to absorb and consume kinetic energy of the elevator moving part, so that the moving part is decelerated and safely stopped, and personal safety is ensured.

After the spring of the existing elevator buffer is extruded, rebound impact can be caused on an elevator, so that the buffering effect is affected.

Disclosure of Invention

Based on this, it is necessary to provide an elevator buffer structure capable of reducing the rebound impact of an elevator.

An elevator buffer structure, the elevator buffer structure comprising:

a buffer cylinder having a buffer chamber; the buffer rod is provided with a first end and a second end which are oppositely arranged, the first end is positioned in the buffer cavity and is in sliding connection with the inner wall of the buffer cavity, and the first end divides the buffer cavity into a first cavity and a second cavity along the axial direction of the buffer cavity; the second end is positioned outside the buffer cavity and used for abutting against an elevator;

the first elastic piece is arranged in the first cavity, one end of the first elastic piece is propped against the first end, the other end of the first elastic piece is propped against the wall surface of the first cavity, and the first elastic piece is compressed or restored along with the movement of the buffer rod;

the second elastic piece is arranged in the second cavity and sleeved on the buffer rod, one end of the second elastic piece is propped against the first end, and the other end of the second elastic piece is propped against the wall surface of the second cavity, so that restoring force in the restoring process of the first elastic piece is absorbed.

It can be understood that the first elastic piece and the second elastic piece are arranged, and the second elastic piece is arranged in the second cavity and sleeved on the buffer rod. When the first elastic element receives the impact force of the elevator, the first elastic element is compressed to absorb the energy generated by the impact of the elevator, and then the first elastic element can generate a restoring force pointing to the elevator in the rebound process, and the restoring force enables the buffer rod to rebound to impact the elevator. Therefore, the second elastic piece is arranged, so that the second elastic piece is compressed in the rebound process of the buffer rod, and the second elastic piece absorbs part of the restoring force of the first elastic piece, so that the influence of the rebound of the buffer rod on the impact of the elevator is reduced.

In one embodiment, a piston and a supporting plate are mounted on the first end of the buffer rod, the piston is slidably connected with the side wall of the buffer cavity, and is used for supporting one end of the second elastic piece; the supporting plate and the piston are arranged at intervals in the axial direction of the buffer rod and used for supporting one end of the first elastic piece.

It will be appreciated that the piston is typically a rubber body with a sealing action, which is typically subjected to limited forces. Therefore, the supporting plate is arranged to bear the reaction force of the first elastic piece when the buffer rod is pressed down, so that the piston is prevented from being damaged after being subjected to larger acting force, and the piston is protected.

In one embodiment, a piston and a supporting plate are mounted on the first end of the buffer rod, the piston is in sliding connection with the side wall of the buffer cavity, one end of the piston is used for supporting against the first elastic piece, and the other end of the piston is used for supporting against the second elastic piece; the supporting plate and the piston are integrally arranged and are positioned at one end of the piston, which is close to the first chamber.

In one embodiment, a suction cup is disposed on the second end of the buffer rod, and the suction cup is used for sucking an elevator.

It can be understood that the elevator can extrude the air in the sucker after striking the sucker, thereby forming vacuum, and then the elevator is adsorbed on the sucker under the action of air pressure, so that the relative displacement between the elevator and the sucker is avoided, and the condition that the elevator is sprung to form fluctuation when the first elastic piece is reset is avoided.

In an embodiment, a third elastic member is further mounted on the second end of the buffer rod, the third elastic member being located between the second end and the suction cup, the suction cup being mounted on the third elastic member.

It can be appreciated that the third elastic member can also absorb the impact generated by the elevator striking the buffer rod, so as to further improve the overall buffering effect of the elevator buffer structure.

In an embodiment, the elevator buffer structure further comprises a pressure relief assembly, wherein the pressure relief assembly is communicated with the sucker, and is used for relieving vacuum in the sucker in the lifting process of the sucker along with the adsorbed elevator so as to separate the sucker from the elevator.

It will be appreciated that when the elevator is operating normally up, it needs to be separated from the buffer. And through setting up the pressure release subassembly to release the vacuum in the sucking disc through the pressure release subassembly, with make sucking disc and elevator separation, thereby avoid the normal operating of restriction elevator.

In one embodiment, the pressure relief assembly comprises: the pressure release pipe is arranged on the sucker, one end of the pressure release pipe is communicated with the sucker, and the pressure release pipe can move along with the movement of the sucker; the pressure relief unit is arranged at one end of the pressure relief pipe far away from the sucker, is communicated with the pressure relief pipe and can move along with the movement of the pressure relief pipe, and the pressure relief unit is used for relieving the vacuum of the sucker; and the matching piece is matched with the pressure relief unit at a preset position in the lifting process of the sucker along with the adsorbed elevator, so that the pressure relief unit is opened and vacuum in the sucker is relieved through the pressure relief pipe.

In an embodiment, the matching piece is fixed on the outer wall of the buffer cylinder, and is arranged at intervals with the pressure relief unit in the axial direction of the buffer rod.

In an embodiment, the pressure relief unit includes: a valve body having a valve cavity and a valve port; one end of the pressure release rod is slidably arranged in the valve cavity and can be matched with the valve port to open and close the valve port; the other end of the pressure release rod is positioned outside the valve body and can be matched with the matching piece in response to the motion of the sucker so as to open the valve port.

It will be appreciated that when the buffer rod moves with compression of the first resilient member, the release rod separates from the mating member, and the valve port closes, thereby maintaining the vacuum of the suction cup (suction cup holding the elevator). When the buffer rod moves along with the restoring force of the first elastic piece, the matching piece can be matched with the pressure release rod at a preset position, so that the valve port is opened, and the vacuum of the sucker is released.

The utility model also provides the following technical scheme:

an elevator assembly comprising an elevator and an elevator buffer structure as described above for buffering movement of the elevator.

Compared with the prior art, the buffer rod is provided with the first elastic piece and the second elastic piece, and the second elastic piece is arranged in the second cavity and sleeved on the buffer rod. When the first elastic element receives the impact force of the elevator, the first elastic element is compressed to absorb the energy generated by the impact of the elevator, and then the first elastic element can generate a restoring force pointing to the elevator in the rebound process, and the restoring force enables the buffer rod to rebound to impact the elevator. Therefore, the second elastic piece is arranged, so that the second elastic piece is compressed in the rebound process of the buffer rod, and the second elastic piece absorbs part of the restoring force of the first elastic piece, so that the influence of the rebound of the buffer rod on the impact of the elevator is reduced. Meanwhile, the utility model also provides a novel elevator buffer which is simple in structure, good in damping effect and small in rebound impact on an elevator.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present utility model, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following descriptions are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic diagram of an elevator buffer according to the present utility model.

Fig. 2 is a partial enlarged view at a in fig. 1.

Fig. 3 is a schematic structural diagram of a pressure relief assembly according to the present utility model.

Reference numerals: 100. an elevator buffer structure; 10. a buffer cylinder; 11. a buffer chamber; 111. a first chamber; 112. a second chamber; 12. a substrate; 13. sealing cover; 20. a buffer rod; 21. a first end; 22. a second end; 23. a piston; 24. a holding plate; 25. a suction cup; 26. a third elastic member; 27. a convex portion; 30. a first elastic member; 40. a second elastic member; 50. a pressure relief assembly; 51. a pressure relief tube; 52. a pressure relief unit; 521. a valve body; 5211. a valve cavity; 5212. a valve port; 5213. a valve seat; 5214. a guide port; 522. a pressure release lever; 5221. a sealing member; 523. a valve cover; 524. a fourth elastic member; 53. and a mating member.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present utility model for the purpose of illustration only and do not represent the only embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of the present utility model have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in the description of the present utility model includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the present utility model provides an elevator buffer structure 100, which is used to reduce the impact generated by an elevator strike, thereby ensuring the safety of the elevator use.

Specifically, the elevator buffer structure 100 includes a buffer cylinder 10, a buffer rod 20, a first elastic member 30, and a second elastic member 40. The buffer cylinder 10 has a buffer chamber 11; the buffer rod 20 has a first end 21 and a second end 22 disposed opposite to each other, the first end 21 being located in the buffer chamber 11 and slidably connected to an inner wall of the buffer chamber 11, and the first end 21 dividing the buffer chamber 11 into a first chamber 111 and a second chamber 112 along an axial direction of the buffer chamber 11 (i.e., an axial direction of the buffer rod 20). The second end 22 is positioned outside the buffer cavity 11 and used for abutting against the elevator; the first elastic member 30 is disposed in the first chamber 111, one end of the first elastic member 30 abuts against the first end 21, the other end abuts against a wall surface of the first chamber 111, and the first elastic member 30 is compressed or restored along with the movement of the buffer rod 20. The second elastic member 40 is disposed in the second chamber 112 and sleeved on the buffer rod 20, and one end of the second elastic member 40 abuts against the first end 21, and the other end abuts against a wall surface of the second chamber 112, so as to absorb a restoring force in the restoring process of the first elastic member 30. It should be explained that, in the prior art, after the first elastic member 30 absorbs the energy generated by the collision of the elevator, the first elastic member 30 generates a restoring force directed to the elevator, and under the action of the restoring force, the buffer rod 20 is rebounded to impact the elevator. In view of the technical problem, the second elastic member 40 is arranged, so that the second elastic member 40 is compressed in the rebound process of the buffer rod 20, not only can the impact force generated by the rebound of the buffer rod 20 be absorbed, but also the time of the rebound of the buffer rod 20 to impact the elevator can be delayed, and the influence of the rebound of the buffer rod 20 to the impact of the elevator is reduced.

As shown in fig. 1, the buffer cylinder 10 further includes a base plate 12, the base plate 12 is fixed in the elevator shaft by a fastener, and the buffer cylinder 10 is also vertically fixed to the base plate 12 by a fastener, thereby achieving the installation of the buffer cylinder 10. Here, the fastener may be a bolt, a screw, or the like. Meanwhile, the connection between the buffer cylinder 10 and the base plate 12 is not limited to the above, and may be fixed by welding or the like.

Further, one end of the buffer cylinder 10 is provided with an opening, which is provided towards the elevator, and the first end 21 of the buffer rod 20 extends into the buffer chamber 11 through the opening. Meanwhile, in order to close the opening, a sealing cover 13 is further arranged at the opening of the buffer cylinder 10, the sealing cover 13 is connected with the buffer cylinder 10 and seals the opening, the buffer rod 20 penetrates through the sealing cover 13 and extends into the buffer cavity 11, and the buffer rod 20 is in sliding connection with the sealing cover 13. At this time, one end of the second elastic member 40 abuts against the first end 21, and the other end abuts against the sealing cover 13.

With continued reference to FIG. 1, in one embodiment, a piston 23 and a holding plate 24 are mounted on the first end 21 of the buffer rod 20. The piston 23 is located in the buffer chamber 11 and slidably connected to a side wall of the buffer chamber 11, and is used for abutting one end of the second elastic member 40, and abutting one end of the second elastic member 40 against a wall surface of the second chamber 112, so as to position the second elastic member 40. The supporting plate 24 and the piston 23 are disposed at intervals in the axial direction of the buffer rod 20 (i.e. the supporting plate 24 and the piston 23 are separately disposed), the supporting plate 24 is used for supporting one end of the first elastic member 30, and the other end of the first elastic member 30 is supported on the wall surface of the first chamber 111, so as to position the second elastic member 40. It will be appreciated that the piston 23 is typically a rubber body with a sealing action, which is typically subjected to limited forces. Therefore, the abutting plate 24 is arranged to bear the reaction force of the first elastic member 30 when the buffer rod 20 is pressed down, so that the piston 23 is prevented from being damaged after being subjected to a large force, and the piston 23 is protected. Meanwhile, the supporting plate 24 can increase the bearing area of the first end 21 of the buffer rod 20, so that the first elastic member 30 uniformly absorbs the impact of the buffer rod 20. Further, the piston 23 can not only prevent the shock absorber 20 from shaking in the shock absorber 10 after the shock absorber 20 is impacted, but also uniformly absorb the impact force of the rebound of the shock absorber 20 by the second elastic member 40

Preferably, the piston 23 and buffer rod 20 may be an interference fit. The mounting of the holding plate 24 to the buffer rod 20 may be one of screwing, welding, and the like.

In another embodiment, the holding plate 24 and the piston 23 may be provided integrally, and the holding plate 24 is relatively close to one end of the first chamber 111. I.e. the abutment plate 24 is provided in the piston 23, thereby serving to strengthen the structural strength of the piston 23. Therefore, here, since the first elastic member 30 is located in the first chamber 111, the abutting plate 24 approaches the first chamber 111, so that the structural strength of the end of the piston 23 facing the first chamber 111 is better, and the reaction force of the first elastic member 30 is borne.

As shown in fig. 1, a suction cup 25 is provided at the second end 22 of the buffer rod 20, and the suction cup 25 is used for sucking an elevator. The suction cup 25 is fixedly attached to the second end 22. It should be explained that, after the elevator hits the suction cup 25, air in the suction cup 25 can be extruded out to form vacuum, and then the elevator is adsorbed on the buffer rod 20 under the action of air pressure, so that not only can the impact of the buffer rod 20 on the elevator be avoided when the first elastic member 30 is recovered, but also the relative displacement between the buffer rod 20 and the elevator is avoided when the impact is generated, and unnecessary vibration is caused.

Further, a third elastic member 26 is further mounted on the second end 22 of the buffer rod 20, the third elastic member 26 is located between the second end 22 and the suction cup 25, and the suction cup 25 is mounted on the third elastic member 26. In this manner, the third resilient member 26 can also absorb the impact of the elevator striking the buffer rod 20 to further enhance the overall cushioning effect of the elevator buffer structure 100. Here, the third elastic member 26 is provided with a material having elasticity such as a rubber block.

As shown in fig. 1, the second end 22 of the buffer rod 20 has a protrusion 27, and the protrusion 27 is protruded along the radial direction of the buffer rod 20, thereby increasing the area of the second end 22 of the buffer rod 20, and the third elastic member 26 is sleeved on the outer surface of the protrusion 27. In this way, the second end 22 of the buffer rod 20 can be made more effective and reliable for supporting the elevator by the protrusion 27, while at the same time improving the stability of the connection between the suction cup 25 and the third elastic member 26.

As shown in fig. 1, in the present embodiment, the first elastic member 30 and the second elastic member 40 are provided as springs, and of course, the first elastic member 30 and the second elastic member 40 may be provided as other devices capable of absorbing energy.

As shown in fig. 1 and 2, the elevator buffer structure 100 further includes a pressure relief assembly 50, where the pressure relief assembly 50 is disposed in communication with the suction cup 25, and is configured to release the vacuum in the suction cup 25 during the recovery process of the first elastic member 30, so as to separate the suction cup 25 from the elevator. It should be noted that, after the elevator impacts the buffer rod 20, the restoring force of the first elastic member 30 compresses the second elastic member 40, and the compressed second elastic member 40 generates a restoring force to compress the first elastic member 30 in turn, so that the buffer rod 20 vibrates back and forth. And through setting up pressure release subassembly 50 to release the vacuum in sucking disc 25 through pressure release subassembly 50 at first elastic component 30 in-process that resumes, so that sucking disc 25 and elevator separation, thereby avoid the elevator to vibrate along with buffer rod 20 and arouse the elevator and wave.

Specifically, the pressure relief assembly 50 includes a pressure relief tube 51, a pressure relief unit 52, and a fitting 53. One end of the pressure release tube 51 is mounted on the suction cup 25 and communicates with the suction cup 25, and the pressure release tube 51 is capable of moving with the movement of the buffer rod 20. The pressure release unit 52 is mounted at one end of the pressure release tube 51 away from the suction cup 25 and is communicated with the pressure release tube 51, and can move along with the movement of the pressure release tube 51, and the pressure release unit 52 is used for releasing the vacuum of the suction cup 25. In the process that the sucking disc 25 ascends along with the adsorbed elevator, the matching piece 53 can be matched with the pressure relief unit 52 at a preset position, so that the pressure relief unit 52 is opened, vacuum in the sucking disc 25 is relieved through the pressure relief pipe 51, and at the moment, the sucking disc 25 is separated from the elevator, so that personnel injury caused by the fact that the elevator vibrates along with the buffer rod 20 is avoided.

As shown in fig. 3, the pressure relief unit 52 includes a valve body 521 and a pressure relief lever 522. The valve body 521 has a valve chamber 5211 and a valve port 5212 therein, and one end of the pressure release lever 522 is slidably mounted in the valve chamber 5211 and can cooperate with the valve port 5212 to open and close the valve port 5212. The other end of the pressure release lever 522 is located outside the valve body 521 and is capable of engaging the engagement member 53 to open the valve port 5212 in response to movement of the suction cup 25. That is, along with the restoring movement of the first elastic member 30, the pressure release lever 522 is driven by the buffer rod 20 to face the direction of the mating member 53 and is pressed by the mating member 53 at a predetermined position, and at this time, the pressure release lever 522 moves in the valve cavity 5211, so as to open the valve port 5212, and release the pressure of the suction cup 25.

In an embodiment, the valve body 521 and the pressure relief pipe 51 may be provided as an integral structure, that is, an end of the pressure relief pipe 51 away from the suction cup 25 is used as the valve body 521, and the pressure relief rod 522 is slidingly connected with the inner wall of the pressure relief pipe 51. Of course, the valve body 521 may be provided as a separate member, that is, the valve body 521 and the pressure relief pipe 51 may be provided separately, and the pressure relief pipe 51 may communicate with the vent hole in the valve body 521. In the present embodiment, the valve body 521 and the pressure release pipe 51 are integrally formed, so that the assembly efficiency of the components can be improved while reducing the use of the components and saving the production cost.

Further, a valve seat 5213 is provided in the valve body 521, a space between the valve seat 5213 and the valve body 521 is fixed, and the valve port 5212 is provided on the valve seat 5213. The end of the pressure release rod 522, which is positioned in the valve cavity 5211, is provided with a sealing component 5221, and the sealing component 5221 is used for being matched with the valve seat 5213 along with the movement of the pressure release rod 522, so that the purpose of opening and closing the valve port 5212 is achieved. Here, the sealing member 5221 is provided as a member having sealing performance such as rubber.

Along the axial direction of the valve port 5212, a guide port 5214 is provided at one end of the valve seat 5213 facing away from the valve body 521, and the guide port 5214 is provided in communication with the valve port 5212. The sealing member 5221 is provided with a guide portion that mates with the guide opening 5214, such that the guide portion mates with the guide opening 5214 to guide the sealing member 5221 to seal the valve port 5212.

As shown in fig. 3, the pressure relief unit 52 further includes a valve cover 523 and a fourth elastic member 524, and the valve body 521 has an opening toward one end of the suction cup 25, and a portion of the pressure relief lever 522, a valve seat 5213, a sealing member 5221, and the like are mounted into the valve chamber 5211 through the opening. The valve cover 523 is provided at the opening to block the opening, thereby protecting the components inside the valve body 521. The fourth elastic member 524 is disposed outside the valve body 521, the fourth elastic member 524 is sleeved on the pressure release rod 522, one end of the fourth elastic member 524 abuts against the valve cover 523, the other end abuts against the pressure release rod 522, and the fourth elastic member 524 is used for resetting the pressure release rod 522, so that after the pressure release rod 522 is separated from the mating member 53, the pressure release rod 522 is reset and the valve port 5212 is sealed. Specifically, the fourth elastic member 524 is a member having elasticity such as a spring.

The engaging piece 53 may be provided as a separate member or may be provided as an integral structure with the cushion cylinder 10. Of course, the specific location and arrangement of the engagement member 53 is wide variety, as long as it is capable of satisfying the engagement with the pressure release lever 522. For example, the engaging piece 53 may be installed in the elevator hoistway or may be installed on the buffer cylinder 10, or may be an integral structure with the buffer cylinder 10, that is, a piece protruding from the outer wall of the buffer cylinder 10. In the present embodiment, the fitting 53 is provided as a connection plate fixed to the outer wall of the buffer cylinder 10, and is provided at a distance from the pressure release rod 522 in the axial direction (which may be understood as the vertical direction) of the pressure release rod 522.

The following describes the operation of the elevator buffer structure 100:

when the elevator impacts the buffer, the suction cup 25 is pressed first, so that the suction cup 25 is vacuumized to absorb the elevator, then the inertia of the elevator drives the buffer rod 20 to move continuously to press the first elastic piece 30, and when the first elastic piece 30 is pressed to the limit and then starts to release and recover, the restoring force of the first elastic piece 30 pushes the buffer rod 20 to move towards the second chamber 112, so that the second elastic piece 40 is compressed. The energy released by the first elastic member 30 is absorbed by the second elastic member 40 in this way, so that the pushing force of the buffer rod 20 to the elevator is reduced; and the suction cup 25 sucks the elevator, so that the elevator can be prevented from being impacted when the first elastic member 30 returns. When the elevator rebounds, the buffer rod 20 and the suction disc 25 are driven to move upwards for a certain distance, and when the elevator moves to the pressure release rod 522 to be matched with the matching piece 53 in a collision mode, the pressure release rod 522 is driven to move so as to open the valve port 5212, and at the moment, vacuum in the suction disc 25 is released by introducing air through the pressure release pipe 51, so that the elevator is separated from the suction disc 25.

The utility model also provides an elevator assembly comprising an elevator (not shown) and an elevator buffer structure 100, the elevator buffer structure 100 being for buffering the movement of the elevator. The specific elevator buffer structure 100 may be referred to in the preamble and will not be described herein.

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 utility model, which are described in detail and are not to be construed as limiting the scope of the claims. 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 utility model, which are all within the scope of the utility model. Accordingly, the scope of the utility model should be determined from the following claims.

Claims (10)

1. An elevator buffer structure, characterized in that the elevator buffer structure comprises:

a buffer cylinder (10) having a buffer chamber (11);

a buffer rod (20) having a first end (21) and a second end (22) disposed opposite to each other, the first end (21) being located in the buffer chamber (11) and slidingly connected to an inner wall of the buffer chamber (11), and the first end (21) dividing the buffer chamber (11) into a first chamber (111) and a second chamber (112) along an axial direction of the buffer chamber (11); the second end (22) is positioned outside the buffer cavity (11) and is used for abutting against an elevator;

a first elastic member (30) disposed in the first chamber (111), wherein one end of the first elastic member (30) abuts against the first end (21), the other end abuts against a wall surface of the first chamber (111), and the first elastic member (30) is compressed or restored along with the movement of the buffer rod (20);

the second elastic piece (40) is arranged in the second cavity (112) and sleeved on the buffer rod (20), one end of the second elastic piece (40) abuts against the first end (21), and the other end of the second elastic piece abuts against the wall surface of the second cavity (112) so as to absorb the restoring force in the restoring process of the first elastic piece (30).

2. Elevator buffer structure according to claim 1, characterized in that a piston (23) and a holding plate (24) are mounted on the first end (21) of the buffer rod (20), the piston (23) being slidingly connected with the side wall of the buffer chamber (11) and being intended for holding one end of the second elastic element (40) against;

the supporting plate (24) and the piston (23) are arranged at intervals in the axial direction of the buffer rod (20) and are used for supporting one end of the first elastic piece (30).

3. Elevator buffer structure according to claim 1, characterized in that a piston (23) and a holding plate (24) are mounted on the first end (21) of the buffer rod (20), the piston (23) being slidingly connected with the side wall of the buffer chamber (11), and one end of the piston (23) being intended to abut against the first elastic element (30) and the other end being intended to abut against the second elastic element (40);

the supporting plate (24) is integrally arranged with the piston (23) and is positioned at one end of the piston (23) close to the first chamber (111).

4. Elevator buffer structure according to claim 1, characterized in that the second end (22) of the buffer rod (20) is provided with suction cups (25), which suction cups (25) are used for sucking the elevator.

5. The elevator buffer structure according to claim 4, characterized in that a third elastic member (26) is further mounted on the second end (22) of the buffer rod (20), the third elastic member (26) being located between the second end (22) and the suction cup (25), the suction cup (25) being mounted on the third elastic member (26).

6. The elevator buffer structure of claim 4, wherein the elevator buffer structure further comprises:

the pressure release assembly (50), pressure release assembly (50) with sucking disc (25) intercommunication setting is used for sucking disc (25) are along with the elevator of absorption in-process that rises, release vacuum in sucking disc (25), so that sucking disc (25) and elevator separation.

7. The elevator buffer structure of claim 6, wherein the pressure relief assembly (50) comprises:

the pressure relief pipe (51) is arranged on the sucker (25) at one end of the pressure relief pipe (51) and is communicated with the sucker (25), and the pressure relief pipe (51) can move along with the movement of the sucker (25);

the pressure relief unit (52) is arranged at one end of the pressure relief pipe (51) away from the sucker (25), is communicated with the pressure relief pipe (51), and can move along with the movement of the pressure relief pipe (51), and the pressure relief unit (52) is used for relieving the vacuum of the sucker (25);

and the matching piece (53) can be matched with the pressure relief unit (52) at a preset position in the lifting process of the sucker (25) along with the adsorbed elevator, so that the pressure relief unit (52) is opened to release the vacuum in the sucker (25) through the pressure relief pipe (51).

8. The structure of an elevator buffer according to claim 7, characterized in that the fitting (53) is fixed to the outer wall of the buffer cylinder (10) and is provided at a distance from the pressure release unit (52) in the axial direction of the buffer rod (20).

9. The elevator buffer structure according to claim 7, characterized in that the pressure relief unit (52) comprises:

a valve body (521) having a valve chamber (5211) and a valve port (5212);

the pressure release rod (522) is slidably arranged in the valve cavity (5211) at one end of the pressure release rod (522) and can be matched with the valve port (5212) to open and close the valve port (5212); the other end of the pressure release rod (522) is positioned outside the valve body (521) and can be matched with the matching piece (53) in response to the motion of the sucker (25) so as to open the valve port (5212).

10. An elevator assembly comprising an elevator and an elevator buffer structure according to any one of claims 1-9, said elevator buffer structure being for buffering movement of said elevator.