CN207330037U - A kind of buffer of elevator - Google Patents

A kind of buffer of elevator Download PDF

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Publication number
CN207330037U
CN207330037U CN201721244817.9U CN201721244817U CN207330037U CN 207330037 U CN207330037 U CN 207330037U CN 201721244817 U CN201721244817 U CN 201721244817U CN 207330037 U CN207330037 U CN 207330037U
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CN
China
Prior art keywords
pressure cylinder
plate
fixed
buffer
perisporium
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CN201721244817.9U
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Chinese (zh)
Inventor
贾砚华
任育柱
张立伟
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HEBEI DONGFANG FUDA MACHINERY CO Ltd
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HEBEI DONGFANG FUDA MACHINERY CO Ltd
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Priority to CN201721244817.9U priority Critical patent/CN207330037U/en
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Abstract

The utility model discloses a kind of buffer of elevator, including bottom plate and the pressure cylinder and adjusting rod that are fixed on bottom plate, piston is equipped with pressure cylinder, hollow piston rod is fixed with the upside of piston, the upper end of piston rod is fixed with upper end cover, and guide sleeve is equipped between piston rod and pressure cylinder;The upper end of adjusting rod passes through the throttle orifice that piston opens up in the middle, the upper end of adjusting rod is equipped with the lower spring cup being in piston rod cavity, buffer spring is equipped between lower spring cup and upper end cover, the perisporium of pressure cylinder is equipped with the first switch component or second switch component for being used for monitoring piston rod action and trigger signal.It has the advantages that it is of simple structure and low cost, safe and reliable, be quick on the draw, disclosure satisfy that the needs of high slower elevators, it is applied widely.

Description

A kind of buffer of elevator
Technical field
It the utility model is related to a kind of elevator components, and in particular to a kind of buffer of elevator.
Background technology
Buffer of elevator is widely used in elevators field, it provides important for the safe and stable operation of elevator Guaranteeing role.But in practical applications, existing buffer of elevator, which also exists, stores up more problems, is further improved or perfect, It is mainly manifested in following aspect:Its structure is complex, prepare and assembly technology it is cumbersome, have impact on production efficiency and cost compared with It is high;It mainly beats the structure type of bar trigger signal using switch, and due to switch, to make bar longer, it is easy to deforms or damages, shadow Service life and the security of elevator are rung.It can be seen from the above that on the premise of performance is met, for buffer structure into Row optimization, to improve its processing performance and production efficiency, reduces production cost, strengthens the security of elevator, to the hair of this area Exhibition is by with certain promotion meaning.
Utility model content
The purpose of this utility model is to provide a kind of buffer of elevator, it can with of simple structure and low cost, safety The advantages of leaning on, being quick on the draw, disclosure satisfy that the needs of high slower elevators, applied widely.
For solve buffer of elevator of the prior art its it is existing it is complicated, be easily damaged, service life is short, safety Property it is poor the problem of, a kind of buffer of elevator provided by the utility model, including bottom plate and the pressure cylinder that is fixed on bottom plate and Adjusting rod, is equipped with piston in the pressure cylinder, hollow piston rod, the upper end of the piston rod is fixed with the upside of the piston Upper end cover is fixed with, guide sleeve is equipped between piston rod and pressure cylinder;Opened in the middle through piston the upper end of the adjusting rod If throttle orifice, the upper end of adjusting rod is equipped with the lower spring cup being in piston rod cavity, the lower spring cup and upper end cover it Between be equipped with buffer spring, the perisporium of the pressure cylinder is equipped with the first switch group for being used for monitoring piston rod action and trigger signal Part or second switch component.
Further, a kind of buffer of elevator of the utility model, wherein, the first switch component includes the first guiding axis Set, the first support plate and first switch body of L types, first guideway are sealingly fastened on the perisporium of pressure cylinder, the Be equipped with the inner cavity of one guideway and be slidingly sealed the first striker of cooperation, and make the first striker inner end be in piston rod along its In the annular positioning groove that periphery wall opens up, the two side of the locating slot is the conical surface;First side plate of the first support plate hangs down Directly it is fixed on the first guideway, connecting plate is hinged with by the first connecting shaft on the second side plate of first support plate, it is described Connecting plate is vertically and fixedly provided with the pressing plate of L-type, is installed with bolt in the middle part of the vertical plate of the pressing plate and bolt top pressure is hit first The outer end of pin, is connected with (the first back-moving spring between the vertical plate upper end of pressing plate and the first side plate of first support plate, first opens Body is closed to be fixed on first support plate and the contact of first switch body is on the downside of the transverse plate of pressing plate.
Further, a kind of buffer of elevator of the utility model, wherein, set in the middle part of the periphery wall of first guideway There is the first spacing ring of protrusion, the first guideway is fixed on the perisporium of pressure cylinder by screw thread spinning, and is oriented to first Seal is equipped between first spacing ring of axle sleeve and the perisporium of pressure cylinder;First side plate of the first support plate passes through installation Hole and nut are fixed on the first guideway;Anti-turn screw is further fixed on first side plate of the first support plate and makes to prevent Turn screw to stretch into the anti-rotating hole that pressure cylinder opens up on its periphery wall, on the second side plate of first support plate and be in connecting plate Upper side position be further fixed on be used for limit the excessively rotating limit shaft of connecting plate.
Further, a kind of buffer of elevator of the utility model, wherein, the second switch component includes the second guiding axis Set, the second support plate and second switch body of L types, second guideway are sealingly fastened on the perisporium of pressure cylinder, the Be equipped with the inner cavity of two guideways and be slidingly sealed the second striker of cooperation, and make the second striker inner end be in piston rod along its In the annular positioning groove that periphery wall opens up, the two side of the locating slot is the conical surface;The second support plate passes through its first side Plate is fixed on the periphery wall of pressure cylinder, and the second switch body is fixed on the second side plate of second support plate, and described Swing rod is hinged with by the second connecting shaft on first side plate of two supporting plates, one end top pressure of the swing rod is in the outer of the second striker End, the other end of swing rod is opposite with the contact of second switch body, and is arranged with both ends in the contact periphery of second switch body Second back-moving spring of the corresponding top pressure on swing rod and second switch body.
Further, a kind of buffer of elevator of the utility model, wherein, the periphery wall of second guideway is equipped with The second raised spacing ring, the second guideway are fixed on the perisporium of pressure cylinder by screw thread spinning, and in the second guiding axis Seal is equipped between second spacing ring of set and the perisporium of pressure cylinder;The second support plate is consolidated by its first plate-side plate welding Due on the perisporium of pressure cylinder.
Further, a kind of buffer of elevator of the utility model, wherein, it is additionally provided with the perisporium of the pressure cylinder for seeing The oil level elbow component of oil level is examined, the oil level elbow component includes connecting seat, the first plug screw and the second plug screw, the connecting seat The through hole of horizontal direction is offered, the threaded hole of vertical direction is offered on the upside of connecting seat and makes threaded hole and its through hole Communicate, first plug screw passes through the through hole spinning of connecting seat to offer connection in the first plug screw on the perisporium of pressure cylinder Pressure cylinder inner cavity and the oil duct of connecting seat threaded hole, the second plug screw spinning is in the threaded hole of connecting seat;The connecting seat Seal is equipped between pressure cylinder and between connecting seat and the turret head of the first plug screw and the second plug screw;The connecting seat Downside be further fixed on otic placode, the otic placode is equipped with fixed pin and fixed pin is stretched into what pressure cylinder opened up on its periphery wall In pin shaft hole.
Further, a kind of buffer of elevator of the utility model, wherein, the lower spring cup is fixed on by screw thread spinning The upper end of adjusting rod;Lower spring cup circumferentially offers multiple oil-through-holes, and the piston offers ring-shaped throttling along its periphery wall Groove is simultaneously provided with restrictor ring in throttling channel;The upper side of the upper end cover offers circular groove and is equipped with circular groove Buffer board, offers stepped hole in the middle part of the buffer board and is fixedly connected by sealing plug with upper end cover.
Further, a kind of buffer of elevator of the utility model, wherein, first plug screw is stretched into the inner cavity of pressure cylinder And the upper side position in piston, the lower spring cup seat are located in the land that adjusting rod upper end opens up;Lower spring cup is circumferentially Multiple oil-through-holes are offered, the piston offers torus knot chute along its periphery wall and restrictor ring is provided with throttling channel; The upper side of the upper end cover offers circular groove and buffer board is equipped with circular groove, is opened up in the middle part of the buffer board There is stepped hole and be fixedly connected by sealing plug with upper end cover.
Further, a kind of buffer of elevator of the utility model, wherein, the fixed form of the pressure cylinder and bottom plate is, Annular slot is offered on the lower end periphery wall of the pressure cylinder, two semi-circular baffles, institute are installed with the annular slot The outer sheath for stating two semi-circular baffles is equipped with pressing sleeve, and the hook part of the pressing sleeve is pressed on two semi-circular baffles, the set of pressing sleeve Portion is by screw thread spinning in the bottom plate annular groove that side opens up on it;The perisporium lower face of the pressure cylinder and bottom plate it Between be additionally provided with seal, the seal groove that the seal is arranged at the perisporium lower face of pressure cylinder or the upper side of bottom plate opens up In.
Further, a kind of buffer of elevator of the utility model, wherein, the guiding is set on piston rod and pressure cylinder Between mode be that annular retaining ring groove is offered on the internal perisporium of the pressure cylinder upper end, baffle ring is equipped with annular retaining ring groove, press Power cylinder offers inclined border chamfering on the internal perisporium on the downside of annular retaining ring groove, the incline direction of border chamfering be from up to The internal diameter of lower pressure cylinder is gradually reduced, and guide sleeve is in up big and down small ladder shape shaft, allows the upper end of guide sleeve to be placed in pressure cylinder Border chamfering at, and be respectively provided with seal between guide sleeve and pressure cylinder and between guide sleeve and piston rod.
A kind of buffer of elevator of the utility model compared with prior art, has the following advantages:The utility model is by setting Bottom set plate and the pressure cylinder and adjusting rod being fixed on bottom plate, set piston in pressure cylinder, in being fixed in the upside of piston Empty piston rod, upper end cover is fixed in the upper end of piston rod, and guide sleeve is set between piston rod and pressure cylinder;Meanwhile allow The upper end of adjusting rod passes through the throttle orifice that piston opens up in the middle, sets and is in piston rod cavity in the upper end of adjusting rod Lower spring cup, sets buffer spring between lower spring cup and upper end cover, and is set on the perisporium of pressure cylinder and be used to monitor work Stopper rod action and the first switch component or second switch component of trigger signal.Thus a kind of simple in structure, cost is just constituted Cheap, safe and reliable, sensitive buffer of elevator.In practical applications, the utility model is all using pressure cylinder is arranged on First switch component or second switch component on wall substitute the switch of traditional elevator buffer to make bar, can effectively solve because opening Bar long the problem of being easily deformed and damaging, is beaten in pass, extends the service life of buffer of elevator, ensure that the peace that elevator is run Full property and stability.Conceived based on same utility model, the utility model provides first switch component and second switch component The switch module of two kinds of structure type, enhances the applicability of product.
Shown embodiment makees further specifically a kind of buffer of elevator of the utility model below in conjunction with the accompanying drawings It is bright:
Brief description of the drawings
Fig. 1 is a kind of top view of the first embodiment of buffer of elevator of the utility model;
Fig. 2 is the A-A direction views in Fig. 1;
Fig. 3 is the close-up schematic view of Fig. 2;
Fig. 4 is the front view of first switch component in a kind of buffer of elevator of the utility model the first embodiment;
Fig. 5 is the stereogram of first switch component in a kind of buffer of elevator of the utility model the first embodiment;
Fig. 6 is the front view of oil level elbow component in a kind of buffer of elevator of the utility model the first embodiment;
Fig. 7 is the top view of oil level elbow component in a kind of buffer of elevator of the utility model the first embodiment;
Fig. 8 is the stereogram one of oil level elbow component in a kind of buffer of elevator of the utility model the first embodiment;
Fig. 9 is the stereogram two of oil level elbow component in a kind of buffer of elevator of the utility model the first embodiment;
Figure 10 is a kind of top view of the utility model second of embodiment of buffer of elevator;
Figure 11 is the B-B direction view in Figure 10;
Figure 12 is the close-up schematic view of Figure 11;
Figure 13 is the front view of second switch component in a kind of the utility model second of embodiment of buffer of elevator;
Figure 14 is the top view of second switch component in a kind of the utility model second of embodiment of buffer of elevator;
Figure 15 is the stereogram of second switch component in a kind of the utility model second of embodiment of buffer of elevator.
Embodiment
Firstly the need of explanation, the noun of locality such as the front, back, left, right, up, down described in the utility model is simply according to attached Scheme carry out description, in order to understand, not to the technical solution of the utility model and be claimed scope progress limitation.
The first embodiment of a kind of buffer of elevator of the utility model as shown in Figures 1 to 9, including bottom plate 1 and The pressure cylinder 2 and adjusting rod 3 being fixed on bottom plate 1, use wherein between pressure cylinder 2 and bottom plate 1 and are welded and fixed mode, adjusting rod The fixed forms such as welding, riveting or bolt can be used between 3 and bottom plate 1, and adjusting rod 3 is in the centre bit of pressure cylinder 2 Put, to ensure the equilibrium of structure.Piston 4 is set in pressure cylinder 2, by screw thread or setting is welded and fixed in the upside of piston 4 Hollow piston rod 41, be preferably screwed connection between piston 4 and piston rod 41, in order to dismount.In the upper of piston rod 41 End is by screw thread or is welded and fixed setting upper end cover 42, and connection is preferably threadably secured between piston rod 41 and upper end cover 42, In order to dismount.And guide sleeve 21 is set between piston rod 41 and pressure cylinder 2, to coordinate piston 4 for piston rod about 41 It is mobile that guiding role is provided.Meanwhile the throttle orifice for allowing the upper end of adjusting rod 3 to pass through piston 4 to open up in the middle, in adjusting rod 3 Upper end set be in 41 inner cavity of piston rod in lower spring cup 31, buffering elastic is set between lower spring cup 31 and upper end cover 42 Spring 5.The first switch component 6 for being used for monitoring the action of piston rod 41 and trigger signal is set on the perisporium of pressure cylinder 2.
A kind of of simple structure and low cost, safe and reliable, sensitive elevator is just constituted by above structure setting Buffer.In practical applications, the utility model is using the first switch component substitution tradition electricity being arranged on pressure cylinder perisporium The switch of terraced buffer makes bar, can effectively solve the problems, such as that bar is long to be easily deformed and damage because switch is beaten, extend elevator and delay The service life of device is rushed, ensure that the safety and stability of elevator operation.
As embodiment, the first switch component 6 in the utility model specifically includes the first guideway 61, L The first support plate 62 and first switch body 63 of type.The first guideway 61 is allowed to be sealingly fastened on the perisporium of pressure cylinder 2, and The first striker 611 for being slidingly sealed cooperation is set in the inner cavity of the first guideway 61, allows the inner end of the first striker 611 to be in In the annular positioning groove 43 that piston rod 41 is opened up along its periphery wall, the two side of locating slot 43 is allowed to be the conical surface, so as to the first striker 611 is smooth mobile.The first side plate of first support plate 62 is allowed to be perpendicularly fixed on the first guideway 61, in first support plate By the first connecting shaft 64 articulated connection plate 65 on 62 the second side plate, and make the second side of connecting plate 65 and first support plate 62 Plate is in parastate.The pressing plate 651 of L-type is vertically fixed on connecting plate 65, passes through threaded hole in the middle part of the vertical plate of pressing plate 651 Spinning fixing bolt 652, and make 652 top pressure of bolt in the outer end of the first striker 611, in the vertical plate upper end of pressing plate 651 and the (the first back-moving spring 66 is set between first side plate of one supporting plate 62, to reset the first striker 611.Allow first switch sheet Body 63 is fixed on first support plate 62, and the contact of first switch body 63 is on the downside of the transverse plate of pressing plate 651.This The first switch component 6 of structure have the characteristics that it is compact-sized, be active in one's movements, be safe and reliable.Its specific work process is as follows:When When buffer of elevator buffers work, external force, which pushes upper end cover 42, simultaneously moves down piston rod 41, and the inner end of the first striker 611 is from work Skidded off in locating slot 43 on 41 periphery wall of stopper rod, so that the outer end top pressure bolt 652 of the first striker 611, drives pressing plate 651 Rotated clockwise centered on the first connecting shaft 64 by connecting plate 65, and then opened by the transverse plate pushing first of pressing plate 651 Close the contact and trigger signal of body 63.In buffer of elevator reseting procedure, upper end cover 42 under the action of the buffer spring 5 on Move, piston rod 41 synchronously moves up, and the position of locating slot 43 is moved in the periphery wall of inner end from the piston rod 41 of the first striker 611 When, pressing plate 651 is revolved counterclockwise centered on the first connecting shaft 64 by connecting plate 65 under the action of (the first back-moving spring 66 Turn, and by the outer end of 652 the first striker of top pressure 611 of bolt, the inner end of the first striker 611 is entered 41 periphery wall of piston rod In locating slot 43, while stretch out the contact of Switch main body 63 and restPose.It should be noted that in practical application In, the first striker 611 and the first guideway 61 are slidingly sealed the mode of cooperation, are typically employed in the perisporium of the first striker 611 On open up seal groove and in seal groove install seal structure type.
Scheme as an optimization, present embodiment allow the first guideway 61 to set the of protrusion in the middle part of its periphery wall One spacing ring, allows the first guideway 61 to be fixed on by screw thread spinning on the perisporium of pressure cylinder 2, and in the first guideway 61 The first spacing ring and pressure cylinder 2 perisporium between seal is set, while allow the first side plate of first support plate 62 to pass through peace Dress hole and nut are fixed on the first guideway 61.This structure setting has the advantages that convenient to disassembly, is conducive to examine Survey, safeguard.For the stability of enhancing structure, present embodiment is fixedly installed on the first side plate of first support plate 62 Anti-turn screw 67, and anti-turn screw 67 is stretched into the anti-rotating hole that pressure cylinder 2 opens up on its periphery wall, to prevent first switch Component 6 rotates, and influences its performance and the stability of work.To avoid hitting because the rotation excessively of connecting plate 65 makes bolt 652 depart from first Pin 611, present embodiment is also on the second side plate of first support plate 62 and the upper side position in connecting plate 65 is fixed There is provided for limiting the excessively rotating limit shaft 68 of connecting plate 65.
As further prioritization scheme, present embodiment is also provided with being used to observe oil on the perisporium of pressure cylinder 2 The oil level elbow component 7 of position, and allow oil level elbow component 7 to specifically include connecting seat 71, the first plug screw 72 and the second plug screw 73.Even Joint chair 71 offers the through hole of horizontal direction, the upside of connecting seat 71 offer the threaded hole of vertical direction and make threaded hole with Its through hole communicates.Allow the first plug screw 72 through connecting seat 71 through hole spinning on the perisporium of pressure cylinder 2, allow the first plug screw 72 open up the oil duct of connection 71 threaded hole of 2 inner cavity of pressure cylinder and connecting seat, allow 73 spinning of the second plug screw in the screw thread of connecting seat 71 Kong Zhong.And between connecting seat 71 and pressure cylinder 2 and connecting seat 71 and the turret head of the first plug screw 72 and the second plug screw 73 it Between be respectively provided with seal, to ensure sealing performance, avoid hydraulic oil from revealing.The oil level elbow component 7 of this structure has structure Simply, it is of low cost, dismounting it is convenient the advantages of.For the stability of enhancing structure, prevent because of Effect of Rotation performance, this specific implementation Otic placode has been fixedly installed in the downside of connecting seat 71 in mode, fixed pin 74 is provided with otic placode, and fixed pin 74 is stretched into pressure In the pin shaft hole that power cylinder 2 opens up on its periphery wall.In addition, for enhancing buffering effect, present embodiment allows upper end cover 42 Side has opened up circular groove on it, and buffer board 45 is provided with circular groove, allows buffer board 45 to open up in the middle Stepped hole is simultaneously fixedly connected by sealing plug 46 with upper end cover 42.
It should be noted that in practical applications, lower spring cup 31, which is arranged on 3 upper end of adjusting rod, can take two ways: First way allows lower spring cup 31 to be fixed on the upper end of adjusting rod 3 by screw thread spinning, at this time can be right by lower spring cup 31 It is spacing that piston 4 moves up progress;The second way allows 31 direct seat of lower spring cup to be located at the land that 3 upper end of adjusting rod opens up On, need to allow the first plug screw 72 of oil level elbow component 7 to stretch into the inner cavity of pressure cylinder 2 and the upside position in piston 4 at this time Put, it is spacing that progress is moved up to piston 4 by the inner end of the first plug screw 72.Meanwhile the utility model is by 31 edge of lower spring cup Multiple oil-through-holes circumferentially are opened up, so that hydraulic oil passes through.And allow piston 4 to open up torus knot chute along its periphery wall, to save Restrictor ring 44 is installed, so that piston 4 is realized with pressure cylinder 2 is slidingly sealed cooperation in chute.
A kind of second of embodiment of buffer of elevator of the utility model as shown in Figure 10 to Figure 15 is specific with the first Unlike embodiment, what present embodiment was provided with another structure type on the perisporium of pressure cylinder 2 second opens Component 6 ' is closed, the action of piston rod 41 and trigger signal are monitored to replace first switch component 6 to be used for.Second switch component 6 ' has Body includes the second guideway 61 ', the second support plate 62 ' and second switch body 63 ' of L-type.Make the second guideway 61 ' close Sealing is scheduled on the perisporium of pressure cylinder 2, and the second striker for being slidingly sealed cooperation is set in the inner cavity of the second guideway 61 ' 611 ', allow the inner end of the second striker 611 ' to be in the annular positioning groove 43 that piston rod 41 is opened up along its periphery wall, allow locating slot 43 two side is the conical surface, so that the second striker 611 ' is smoothly mobile.Second support plate 62 ' is allowed to be fixed on by its first side plate On the periphery wall of pressure cylinder 2, second switch body 63 ' is allowed to be fixed on the second side plate of second support plate 62 ', and at second Swing rod 65 ' is hinged by the second connecting shaft 64 ' on first side plate of frame plate 62 ', allows one end top pressure of swing rod 65 ' in the second striker 611 ' outer end, makes the other end of swing rod 65 ' opposite with the contact of second switch body 63 ', and in second switch body 63 ' Contact periphery is arranged with both ends and corresponds to second back-moving spring 66 ' of the top pressure on swing rod 65 ' and second switch body 63 '.This The second switch component 6 ' of structure equally have the advantages that it is compact-sized, be active in one's movements, be safe and reliable.Its specific work process is such as Under:When buffer of elevator buffers work, external force pushes upper end cover 42 and moves down piston rod 41, the inner end of the second striker 611 ' Skidded off from the locating slot 43 on 41 periphery wall of piston rod, so that one end of the outer end top pressure swing rod 65 ' of the second striker 611 ', Swing rod 65 ' is rotated centered on the second connecting shaft 64 ', so that the other end top pressure second switch body 63 ' of swing rod 65 ' touches Head and trigger signal.In buffer of elevator reseting procedure, upper end cover 42 moves up under the action of buffer spring 5, piston rod 41 Synchronously move up, it is multiple second when the periphery wall of the inner end of the second striker 611 ' from piston rod 41 is moved to 43 position of locating slot Rotate the opposite direction centered on the second connecting shaft 64 ' of swing rod 65 ' under the elastic force effect of position spring 66 ', and pushed up by swing rod 65 ' The outer end of the second striker 611 ' is pressed, the inner end of the second striker 611 ' is entered in the locating slot 43 of 41 periphery wall of piston rod, at the same time Stretch out the contact of Switch main body 63 and restPose.In practical applications, the second striker 611 ' and the second guideway 61 ' are slidingly sealed the mode of cooperation, are typically employed in and open up seal groove on the perisporium of the second striker 611 ' and pacify in seal groove Fill the structure type of seal.
In addition, following fixed form is used in second of embodiment between pressure cylinder 2 and bottom plate 1:Under pressure cylinder 2 Annular slot is opened up on the periphery wall of end, two semi-circular baffles 22 are clamped in annular slot, in two semi-circular baffles 22 Outside is arranged pressing sleeve 23, allows the hook part of pressing sleeve 23 to be pressed on two semi-circular baffles 22, allows the set portion of pressing sleeve 23 to be revolved by screw thread In the annular groove that side offers on it of bottom plate 1.And set between the perisporium lower face of pressure cylinder 2 and bottom plate 1 Seal, allows in the seal groove that seal is arranged on the perisporium lower face of pressure cylinder 2 or the upper side of bottom plate 1 opens up.This company Connecing fixed form has the advantages that convenient to disassembly, facilitates work-up, safeguards, practicality is stronger.
In practical applications, the utility model is arranged on piston rod 41 and pressure by 21 generally use following manner of guide sleeve Between cylinder 2:Annular retaining ring groove is opened up on the internal perisporium of 2 upper end of pressure cylinder and baffle ring 24 is set in annular retaining ring groove, and is allowed Pressure cylinder 2 opens up inclined border chamfering on the internal perisporium on the downside of annular retaining ring groove, allow border chamfering incline direction be from Internal diameter up to lower pressure cylinder is gradually reduced.Allow guide sleeve 21 to be in up big and down small ladder shape shaft, allow the upper end of guide sleeve 21 It is placed at the border chamfering of pressure cylinder 2, and between guide sleeve 21 and pressure cylinder 2 and between guide sleeve 21 and piston rod 41 Seal is set.This structure can ensure the concentricity of piston rod 41 and 2 endoporus of pressure cylinder, and enhancing piston rod 41 moves steady Property.
Above example is only the description carried out to the utility model preferred embodiment, and not the utility model is asked The restriction that protection domain carries out, on the premise of the spirit of the design of the utility model is not departed from, this area engineers and technicians' foundation The various forms of deformations that the technical solution of the utility model is made, should all fall into what claims of the utility model determined In protection domain.

Claims (10)

1. a kind of buffer of elevator, including bottom plate (1) and the pressure cylinder (2) and adjusting rod (3) that are fixed on bottom plate (1), its It is characterized in that, piston (4) is equipped with the pressure cylinder (2), hollow piston rod (41) is fixed with the upside of the piston (4), The upper end of the piston rod (41) is fixed with upper end cover (42), and guide sleeve (21) is equipped between piston rod (41) and pressure cylinder (2); The upper end of the adjusting rod (3) passes through the throttle orifice that piston (4) opens up in the middle, and the upper end of adjusting rod (3) is equipped with work Lower spring cup (31) in stopper rod (41) inner cavity, is equipped with buffer spring (5) between the lower spring cup (31) and upper end cover (42), The perisporium of the pressure cylinder (2) be equipped be used for monitor piston rod (41) action and trigger signal first switch component (6) or Second switch component (6 ').
2. a kind of buffer of elevator described in accordance with the claim 1, it is characterised in that the first switch component (6) includes the The first support plate (62) and first switch body (63) of one guideway (61), L-type, the first guideway (61) sealing It is fixed on the perisporium of pressure cylinder (2), the first striker for being slidingly sealed cooperation is equipped with the inner cavity of the first guideway (61) (611), and the inner end of the first striker (611) is made to be in the annular positioning groove (43) that piston rod (41) is opened up along its periphery wall, The two side of the locating slot (43) is the conical surface;First side plate of the first support plate (62) is perpendicularly fixed at the first guiding axis Cover on (61), connecting plate (65), the company are hinged with by the first connecting shaft (64) on the second side plate of first support plate (62) Fishplate bar (65) is vertically and fixedly provided with the pressing plate (651) of L-type, is installed with bolt (652) in the middle part of the vertical plate of the pressing plate (651) and makes Bolt (652) top pressure is in the outer end of the first striker (611), and the of the vertical plate upper end of pressing plate (651) and first support plate (62) It is connected with (the first back-moving spring (66) between side plate, first switch body (63) is fixed on first support plate (62) and makes The contact of one Switch main body (63) is on the downside of the transverse plate of pressing plate (651).
A kind of 3. buffer of elevator described in accordance with the claim 2, it is characterised in that the periphery of first guideway (61) The first raised spacing ring is equipped with the middle part of wall, the first guideway (61) is fixed on the perisporium of pressure cylinder (2) by screw thread spinning On, and it is equipped with seal between the first spacing ring of the first guideway (61) and the perisporium of pressure cylinder (2);Described first First side plate of frame plate (62) is fixed on the first guideway (61) by mounting hole and nut;The first support plate (62) The first side plate on be further fixed on anti-turn screw (67) and make anti-turn screw (67) stretch into pressure cylinder (2) opening up on its periphery wall Anti-rotating hole in, on the second side plate of first support plate (62) and in connecting plate (65) upper side position be further fixed on be used for limit The excessively rotating limit shaft (68) of connecting plate (65) processed.
4. a kind of buffer of elevator described in accordance with the claim 1, it is characterised in that the second switch component (6 ') includes the The second support plate (62 ') and second switch body (63 ') of two guideways (61 '), L-type, second guideway (61 ') It is sealingly fastened on the perisporium of pressure cylinder (2), is equipped with the inner cavity of the second guideway (61 ') and is slidingly sealed the second of cooperation and hits Pin (611 '), and the inner end of the second striker (611 ') is in the annular positioning groove (43) that piston rod (41) is opened up along its periphery wall In, the two side of the locating slot (43) is the conical surface;The second support plate (62 ') is fixed on pressure cylinder by its first side plate (2) on periphery wall, the second switch body (63 ') is fixed on the second side plate of second support plate (62 '), and described second Swing rod (65 '), one end of the swing rod (65 ') are hinged with by the second connecting shaft (64 ') on first side plate of supporting plate (62 ') For top pressure in the outer end of the second striker (611 '), the other end of swing rod (65 ') is opposite with the contact of second switch body (63 '), and Both ends, which are arranged with, in the contact periphery of second switch body (63 ') corresponds to top pressure in swing rod (65 ') and second switch body (63 ') On second back-moving spring (66 ').
5. according to a kind of buffer of elevator described in claim 4, it is characterised in that outside second guideway (61 ') Perisporium is equipped with the second raised spacing ring, and the second guideway (61 ') is fixed on the perisporium of pressure cylinder (2) by screw thread spinning On, and it is equipped with seal between the second spacing ring of the second guideway (61 ') and the perisporium of pressure cylinder (2);Described second Supporting plate (62 ') is fixed on the perisporium of pressure cylinder (2) by its first plate-side plate welding.
6. according to a kind of buffer of elevator described in claim 3 or 5, it is characterised in that on the perisporium of the pressure cylinder (2) also Equipped with the oil level elbow component (7) for observing oil level, the oil level elbow component (7) includes connecting seat (71), the first plug screw (72) and the second plug screw (73), the connecting seat (71) offer the through hole of horizontal direction, and connecting seat opens up on the upside of (71) There is the threaded hole of vertical direction and threaded hole is communicated with its through hole, first plug screw (72) is passed through through connecting seat (71) Through hole spinning offers connection pressure cylinder (2) inner cavity and connecting seat (71) on the perisporium of pressure cylinder (2) in the first plug screw (72) The oil duct of threaded hole, the second plug screw (73) spinning is in the threaded hole of connecting seat (71);The connecting seat (71) and pressure Seal is equipped between cylinder (2) and between connecting seat (71) and the turret head of the first plug screw (72) and the second plug screw (73); Otic placode is further fixed on the downside of the connecting seat (71), the otic placode is equipped with fixed pin (74) and fixed pin (74) is stretched into pressure In the pin shaft hole that power cylinder (2) opens up on its periphery wall.
7. according to a kind of buffer of elevator described in claim 6, it is characterised in that the lower spring cup (31) is revolved by screw thread Dress is fixed on the upper end of adjusting rod (3);Lower spring cup (31) circumferentially offers multiple oil-through-holes, and the piston (4) is along outside it Perisporium offers torus knot chute and restrictor ring (44) is provided with throttling channel;The upper side of the upper end cover (42) offers Circular groove is simultaneously equipped with buffer board (45) in circular groove, and stepped hole is offered and by close in the middle part of the buffer board (45) Envelope plug screw (46) is fixedly connected with upper end cover (42).
8. according to a kind of buffer of elevator described in claim 6, it is characterised in that first plug screw (72) stretches into pressure cylinder (2) in inner cavity and the upper side position in piston (4), lower spring cup (31) seat are located at adjusting rod (3) upper end and open up In land;Lower spring cup (31) circumferentially offers multiple oil-through-holes, and the piston (4) offers ring-shaped throttling along its periphery wall Groove is simultaneously provided with restrictor ring (44) in throttling channel;The upper side of the upper end cover (42) offers circular groove and circular recessed Buffer board (45) is equipped with groove, stepped hole is offered and by sealing plug (46) and upper end cover in the middle part of the buffer board (45) (42) it is fixedly connected.
9. according to a kind of buffer of elevator described in claim 7 or 8, it is characterised in that the pressure cylinder (2) and bottom plate (1) Fixed form be to offer annular slot on the lower end periphery wall of the pressure cylinder (2), two are installed with the annular slot A semi-circular baffle (22), the outer sheath of described two semi-circular baffles (22) are equipped with pressing sleeve (23), the hook of the pressing sleeve (23) Portion is pressed on two semi-circular baffles (22), and the set portion of pressing sleeve (23) is opened up side on it by screw thread spinning in bottom plate (1) Annular groove in;Seal is additionally provided between the perisporium lower face of the pressure cylinder (2) and bottom plate (1), the seal is set Be placed in the perisporium lower face of pressure cylinder (2) or seal groove that the upper side of bottom plate (1) opens up in.
10. according to a kind of buffer of elevator described in claim 9, it is characterised in that the guide sleeve (21) is arranged on piston Mode between bar (41) and pressure cylinder (2) is to offer annular retaining ring groove, ring on the internal perisporium of pressure cylinder (2) upper end Baffle ring (24) is equipped with shape circlip groove, pressure cylinder (2) offers inclined border on the internal perisporium on the downside of annular retaining ring groove and falls Angle, the incline direction of border chamfering are gradually reduced for the internal diameter of pressure cylinder from top to bottom, and guide sleeve (21) is in up big and down small rank Terraced shape shaft, allows the upper end of guide sleeve (21) to be placed at the border chamfering of pressure cylinder (2), and in guide sleeve (21) and pressure cylinder (2) seal is respectively provided between and between guide sleeve (21) and piston rod (41).
CN201721244817.9U 2017-09-26 2017-09-26 A kind of buffer of elevator Active CN207330037U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107720479A (en) * 2017-09-26 2018-02-23 河北东方富达机械有限公司 A kind of buffer of elevator
CN109573778A (en) * 2019-01-02 2019-04-05 广州广日电梯工业有限公司 A kind of magnetorheological buffer of elevator and control method
CN111322344A (en) * 2020-04-26 2020-06-23 中国工程物理研究院总体工程研究所 Gradual change throttle formula buffer suitable for direction drop test

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107720479A (en) * 2017-09-26 2018-02-23 河北东方富达机械有限公司 A kind of buffer of elevator
CN109573778A (en) * 2019-01-02 2019-04-05 广州广日电梯工业有限公司 A kind of magnetorheological buffer of elevator and control method
CN109573778B (en) * 2019-01-02 2023-12-22 广州广日电梯工业有限公司 Magneto-rheological elevator buffer and control method
CN111322344A (en) * 2020-04-26 2020-06-23 中国工程物理研究院总体工程研究所 Gradual change throttle formula buffer suitable for direction drop test

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