CN115072527A

CN115072527A - Platform goods lift

Info

Publication number: CN115072527A
Application number: CN202210390560.7A
Authority: CN
Inventors: 季磊; 李永强; 陈伟; 陈�峰
Original assignee: SHANGHAI FUJI ELEVATOR CO Ltd
Current assignee: SHANGHAI FUJI ELEVATOR CO Ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-09-20

Abstract

The invention relates to a goods lift, in particular to a platform goods lift, which comprises a goods lift main body, wherein the goods lift main body comprises an elevator shaft, an elevator car and an elevator traction system, a portal frame is arranged in the elevator shaft, one side of the portal frame is connected with a bracket in a sliding manner through a first guide rail, and a lifting end of the bracket is connected with the elevator car; the elevator car is not provided with a car wall, the bottom of the elevator car is provided with a car bottom, a stress structural member is fixed on one side of the car bottom close to the landing door, and the stress structural member is connected with a movable first pedal; and a driving system for driving the first pedal to move is arranged on the stressed structural member or the car platform. The elevator car of the invention has no car wall, thus saving the cost of the car wall.

Description

Platform goods lift

Technical Field

The invention relates to the field of elevators, in particular to a goods elevator.

Background

The existing goods elevator has the problems of large occupied area, high cost and easy clamping of wheels of a cart and a forklift in a gap between a car sill and a landing sill.

Disclosure of Invention

The present invention aims to provide a platform freight elevator to solve at least one of the above technical problems.

The technical problem solved by the invention can be realized by adopting the following technical scheme:

a platform goods lift comprises a goods lift main body, wherein the goods lift main body comprises an elevator shaft, an elevator car and an elevator traction system, and is characterized in that a portal frame is arranged in the elevator shaft, one side of the portal frame is connected with a bracket in a sliding mode through a first guide rail, and a lifting end of the bracket is connected with the elevator car;

the elevator car is not provided with a car wall, the bottom of the elevator car is provided with a car bottom, a stressed structural member is fixed on one side of the car bottom, which is close to the landing door, and the stressed structural member is connected with a movable first pedal;

and a driving system for driving the first pedal to move is arranged on the stressed structural member or the car platform.

Firstly, the elevator car of the invention has no car wall, thus saving the cost of the car wall, and simultaneously, the weight of the elevator car can be effectively reduced, and more or heavier goods can be borne. Secondly, the first pedal of the invention can move, and the clearance between the car sill and the landing sill can be adjusted by moving the first pedal, so that the wheels of a cart or a forklift can conveniently pass through the clearance.

A self-standing steel frame is further arranged in the elevator shaft, one side of the self-standing steel frame abuts against one side wall of the elevator shaft, the other side of the self-standing steel frame is connected with a support frame, and the support frame is connected with a balancing weight in a sliding mode through a second guide rail;

the elevator traction system comprises a traction machine, wherein the traction machine is fixed at the top of an elevator shaft and is connected with a pulley through a transmission system in a driving mode, the pulley is located between the counterweight block and the bracket, a perforated steel belt is clamped on a gear of the pulley, one end of the perforated steel belt is connected with the bracket, and the other end of the perforated steel belt is connected with the counterweight block. The invention optimizes the position of each part in the hoistway, and greatly improves the space utilization rate in the hoistway in a back-to-back mode.

Preferably, the width of the counterweight is not more than four fifths of the width of the self-standing steel frame, two support frames are provided, one support frame is positioned at one end of the self-standing steel frame, the other support frame is close to the other end of the self-standing steel frame, a gap is formed between the other support frame and the counterweight, and the counterweight is positioned between the two support frames;

the cargo lift main body further comprises a trailing cable, and the trailing cable is located in the gap.

And a shielding plate is arranged in the elevator shaft, and the top of the shielding plate is hung on a beam above the portal frame. According to the elevator counterweight block, the structures at the counterweight block side are shielded and isolated through the shielding plate, on one hand, a disordered part is shielded, and therefore a user in the elevator can have good visual perception. On the other hand, people or goods are prevented from falling into the counterweight block side, so that danger is avoided. In addition, the shielding plate is hung on the portal frame, so that the fixing difficulty of the shielding plate can be reduced, and meanwhile, a part for fixing the shielding plate is omitted.

Preferably, a lighting lamp and a control panel are fixed on the shielding plate.

The stress structural member is divided into a first part, a second part and a third part from one end to the other end in sequence, the first pedal is connected to the second part, and the second pedal is fixedly connected to the upper portions of the first part and the third part. The invention adopts a structure with two fixed ends and middle moving, and has the following advantages: 1. the second pedals fixed at the two ends are used for ensuring the bearing capacity of the sill, and the second pedals moving in the middle are used for reducing the rolling difficulty of the wheels. 2. The both ends that the usage is low relatively but spatial structure requires highly adopt traditional fixed connection, the usage is higher relatively and the more open mid portion in position adopts the removal connection, and the elevator operation is more stable, the sliding part overhauls more conveniently.

Preferably, the minimum clearance between the first pedal and the landing sill is 15-18 mm; the clearance between the second pedal and the landing sill is 30-35 mm.

Drawings

FIG. 1 is a schematic diagram of a portion of one configuration of the present invention.

Fig. 2 is a partial structural schematic diagram of another structure of the present invention.

Fig. 3 is a partial structural schematic diagram of the present invention.

Fig. 4 is a schematic view of a structure at a sill of a car.

Fig. 5 is another schematic view of the structure of the elevator car sill.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific drawings.

Referring to fig. 1, 2, 3, 4 and 5, a landing freight elevator includes a freight elevator main body including an elevator hoistway, an elevator car, an elevator traction system, and the like.

Be equipped with the shielding plate in the elevator well, the shielding plate is divided into two relatively independent sub-wellways with the elevator well. The elevator shaft can be divided into a sub-shaft near the landing door and a sub-shaft far away from the landing door, and can also be divided into a sub-shaft opposite to the landing door and a sub-shaft at the side of the landing door. The first case will be described in detail below as an example. In the second case, the structure is the same, but the relative position is changed by the position change of the hoistway, as shown in fig. 1 and 2.

In relation to elevator shafts

The floor area is about 1.2 square, the depth of the foundation pit is less than or equal to 100mm (about the height of the floor heating plus the decorative layer), and the height of the top layer is required to be less than or equal to 2700 mm.

Be equipped with portal frame 3 in the elevator well, portal frame 3 has bracket 5 through first guide rail sliding connection near one side of layer door 17, and the lift end of bracket 5 is connected elevator car. Still be equipped with self-supporting steelframe 2 in the elevator well, self-supporting steelframe 2 is located the elevator well and keeps away from one side of layer door, and one side that self-supporting steelframe 2 is close to the layer door is connected with support frame 14, and support frame 14 has balancing weight 6 through second guide rail sliding connection. The elevator traction system comprises a traction machine 15, wherein the traction machine 15 is fixed at the top of an elevator shaft, the traction machine is connected with a pulley through a transmission system in a driving mode, the pulley is located between a counterweight block 6 and a bracket 5, a gear of the pulley is connected with a perforated steel belt 7 in a clamping mode, the perforated steel belt 7 is close to one end of a landing door to be connected with the bracket 5, and the perforated steel belt 7 is far away from one end of the landing door to be connected with the counterweight block 6. The invention optimizes the position of each part in the hoistway, and greatly improves the space utilization rate in the hoistway in a back-to-back mode. The width of balancing weight 6 is not more than four fifths of the width of self-reliance steelframe 2, and there are two support frames 14, and one of them is located the one end of self-reliance steelframe 2, and another is close to the other end of self-reliance steelframe 2, and has the clearance with the other end of self-reliance steelframe 2, and balancing weight 6 is located between two support frames. The goods lift main part still includes the retinue cable, and the retinue cable is located the clearance. Preferably, the weight of the counterweight 6 is equal to the weight of the elevator car plus one half of the rated load.

Be equipped with the shielding plate in the elevator well, the shielding plate is divided into two relatively independent sub-well ways with the elevator well, and elevator car is located that sub-well way that is close to the layer door, and balancing weight 6, portal frame 3, self-supporting steelframe 2, retinue cable are located that sub-well way of keeping away from the layer door. The baffle plate is provided with a through groove, and the bracket 5 passes through the through groove. According to the elevator counterweight block, the structures at the sides of the counterweight blocks 6 are shielded and isolated through the shielding plate, so that on one hand, disordered parts are shielded, and users in the elevator can feel good in vision. On the other hand, avoid people or goods to fall into balancing weight 6 side, cause danger. The top of the shielding plate may be suspended from a beam above the gantry 3. Therefore, the fixing difficulty of the shielding plate is reduced, and meanwhile, a part for fixing the shielding plate is omitted.

About elevator cars

Detailed description of the preferred embodiment 1

The elevator car has no car wall, and the bottom of the elevator car is provided with a car bottom 1. Can be square frame by elevator car, including lieing in the ascending mullion of vertical direction, lie in the ascending horizontal frame of horizontal direction, the horizontal frame that lies in the below is put up and is equipped with at the bottom of 1 the slabby sedan-chair. This is the simplest solution, in which the total weight of the elevator car is minimal and the internal space of the elevator car is maximal. And the unclosed upper part can be utilized to accommodate longer parts, so that the longer parts can be transported. Triangular steel plates are preferably selected for the vertical frames and the horizontal frames. The lighting lamp can be installed at the junction of the vertical frame and the horizontal frame. Preferably, however, both the light fixture and the control panel are fixed to the shielding plate. Thereby reducing the circuit wires entering the elevator car. For the control panel, one is installed per floor. And the lighting lamp can be installed according to actual requirements. It is possible to directly replace part of the transverse frame located in the lower part of the elevator car with a bracket 5.

Specific example 2

The elevator car is a square frame and comprises a vertical frame positioned in the vertical direction and a horizontal frame positioned in the horizontal direction, a platy car bottom 1 is erected on the horizontal frame positioned below the vertical frame, and a rear decorative plate is arranged on one side, close to the shielding plate, of the elevator car. In the case where a rear trim panel is provided, the rear trim panel functions as a shield, thereby allowing the shield plate to be eliminated. The control panel is preferably fixed to the rear decorative panel. The side of the elevator car can be provided with a side decorative plate. The decorative plate and the car wall are two concepts, and the decorative plate is decorative and has no requirement on the strength and the thickness. The car wall is protective and has certain requirements on strength and thickness. The car walls are generally more expensive and heavier than the trim panels. The invention does not have a more expensive and heavier car wall.

The elevator car may be provided with doors, but preferably the doors are doors which are rotated 90 degrees to open the doors, one side of the doors being connected by a rotating shaft to a stile of the elevator car adjacent to the landing door. Thereby saving the well space and reducing the occupied area.

About the sill of the car

A stressed structural member is fixed on one side of the car bottom 1 close to the landing door, and a movable first pedal is connected to the stressed structural member. The stress structural member 5 is sequentially divided into a first part, a second part and a third part from one end to the other end, the second part is connected with a first pedal 4 in a sliding mode, and a second pedal 6 is fixedly connected above the first part and the third part. The invention adopts a structure with two fixed ends and middle moving, and has the following advantages: 1. the second pedals 6 fixed at the two ends are used for ensuring the pressure bearing capacity of the sill, and the second pedals 6 moving in the middle are used for reducing the rolling difficulty of the wheels. 2. The both ends that the rate of utilization is low relatively but spatial structure requires highly adopt traditional fixed connection, the rate of utilization is higher relatively and the more open mid portion in position adopts sliding connection, and the elevator operation is more stable, the sliding part overhauls more conveniently. The longitudinal section of the stress structural member 5 is preferably in the shape of an inverted right trapezoid or an inverted right triangle. The right-angle edge of the stress structural member 5 can be welded with the car bottom 1. The structure can effectively increase the area of the supporting surface of the stressed structural member 5 and simultaneously ensure the supporting strength of the stressed structural member 5.

Detailed description of the preferred embodiment 1

The second part is provided with a strip-shaped groove with an upward opening, a screw rod is erected in the strip-shaped groove, and the length direction of the screw rod is vertical to the opening and closing direction of the car door; the screw rod is provided with a sliding block 12, and the sliding block 12 is fixedly connected with the first pedal 4. The driving system comprises a driving motor, and a transmission shaft of the driving motor 11 is connected with a screw rod 13 through a coupling 10 or a transmission mechanism and drives the screw rod 13 to rotate. The control end of the drive motor 11 is connected to a control panel in the elevator car. The drive motor 11 may also be embedded in the bar groove. It is preferable that the drive motor 11 is fixed below the platform 1. In order to avoid ash falling in the strip-shaped groove, the transmission resistance of the screw rod 13 is large. The stress structural member 5 can be provided with a through hole for ventilation, one end of the through hole is communicated with the strip-shaped groove, and the other end of the through hole is arranged on the lower end face of the stress structural member 5. The bottom of the strip-shaped groove is provided with a through groove for pollution discharge. The air flow generated by the lift of the elevator can be directly utilized to pass through the through hole to enter the strip-shaped groove, and the ash in the strip-shaped groove is blown out from the barrel groove. The through hole may be located below the bar groove, but is preferably located outside the bar groove, and the upper end of the through hole is opened on the side wall of the bar groove. An air deflector can be arranged above the upper port of the through hole and is inclined downwards. Thereby blowing the wind downward. Further preferably, the through hole is an arc-shaped through hole. The through holes are bent upwards and then bent downwards into the strip-shaped grooves. So that the upper portion of the arc-shaped through hole is inclined downward. In any drive system in which the through-hole is located in the strip-shaped groove, it is preferable that the upper end surfaces of the first step plate 4 and the second step plate 6 are flush. When the through-hole is located below the bar-shaped groove, the through-hole and the through-groove may be merged, thereby omitting one of them. Limiting grooves 9 can be formed in two side walls of the strip-shaped groove, outward protrusions 8 are arranged on the upper portions of the side walls of the two sides of the sliding block 12 respectively, and the two protrusions are inserted into the two limiting grooves 9 respectively. Therefore, the limiting groove 9 is used for limiting the sliding block 12, the sliding block 12 and the driving motor 11 are used for limiting the screw rod 13, and therefore one end of the screw rod 13 is suspended without arranging an erection structure. With this structure, slide block 12 can be moved to the maximum extent toward landing sill 2. The lower part of sliding block 12 is provided with an opening for lead screw 13 to pass through, and an internal thread matched with the external thread on lead screw 13 is arranged in the opening. Balls may be provided between the retaining groove 9 and the protrusion 8. Thereby reducing the resistance to movement of slide block 12. In order to make the first pedal 4 slide smoothly, two ends of the first pedal 4 may be respectively provided with a driving system with an upper screw rod 13 structure. The driving motor 11 is preferably a motor capable of rotating in both forward and reverse directions. So that not only the first pedal 4 can be pushed out, but also the first pedal 4 can be pulled back. Preferably, after the elevator reaches the leveling position and opens the door to the place, the driving motor 11 is controlled to rotate through a button on the control panel or the rotation of the driving motor 11 is linked with the opening and closing of the door through the elevator control system, the driving motor 11 pushes the first pedal 4 to the middle position between the car bottom 1 and the landing door sill 2, the cart comes in and goes out, the timing of the elevator control system is completed or the door closing button is manually pressed, at the moment, the driving motor 11 rotates reversely, the first pedal 4 is pulled back to be aligned with the second pedal 6, and finally the elevator is closed and operated.

Specific example 2

The width of the second part is smaller than that of the first part, or the second part is not directly arranged, a connecting rod rotating shaft is arranged on the position, corresponding to the second part, of the car bottom 1, a connecting rod 16 is arranged on the connecting rod rotating shaft, and a first pedal is fixed at the tail end of the connecting rod. The driving system comprises a driving motor, a rotating shaft of the driving motor is connected with a connecting rod rotating shaft through a coupler or a transmission system, and the connecting rod rotating shaft drives the connecting rod to rotate. The connecting rod drives the first pedal to move downwards. The connecting rod is preferably an arc-shaped connecting rod. At least two arc connecting rods are provided. When there are only two, it is preferably arranged at both ends of the first step. When two or more, the arrangement is preferably at equal intervals. The arc connecting rods and the connecting rod rotating shafts can be respectively independent and are respectively connected with a driving motor. The drive motors may be capable of forward rotation and reverse rotation, or may be partially capable of forward rotation and partially capable of reverse rotation. Preferably, when the elevator reaches the leveling position and the door is opened in place, the driving motor is controlled to rotate through a button on the control panel or the rotation of the driving motor is linked with the opening and closing of the door through the elevator control system, the driving motor drives the connecting rod to rotate, the first pedal is sent to the middle position between the landing sill and the car bottom 1, the cart comes in and goes out, when the timing of the elevator control system is completed or the door closing button is manually pressed, the driving motor rotates reversely at the moment, and the first pedal is pulled back to the position where the operation of the elevator is not influenced. The connecting rod is preferably a downwardly pivoted connecting rod, so that the occupation of the interior space of the elevator car is reduced.

In the two embodiments, the control end of the driving system is connected with a control panel in the elevator car. The control panel can be fixed on the vertical frame and also can be fixed on the rear decorative plate, and is not recommended to be fixed on the side decorative plate because the circuit layout at the position has large difficulty and occupies the space of an elevator shaft.

In the two embodiments, in the case that the stressed structural member 5 is not provided with a groove, the height of the second pedal 6 can be raised by increasing the thickness of the second pedal 6, and finally, after the first pedal 4 is lifted by the driving system, the upper end faces of the first pedal 4 and the second pedal 6 can still be flush. Thereby making the rolling of the wheel smoother. The first and

second treads

4, 6 are preferably of equal width. Slide block 12 is preferably attached to the side of first tread 4 adjacent to platform 1. Thereby pushing the first step 4 partially out of the force-bearing structure 5 and thereby maximally adjusting the gap distance. Preferably, the minimum gap between the first step 4 and the landing sill 2 is 15mm to 18 mm. The clearance between the second pedal 6 and the landing sill 2 is 30 mm-35 mm. The step is preferably a metal step, and more preferably has a U-shape. Comprises a bottom and side walls, wherein the farther away from the bottom, the closer the side walls are. The two side walls of the pedal have certain elasticity, and a certain buffering effect can be achieved. A spring may be provided between the side wall and the base to improve the resilience of the pedal. The bottom of the pedal is fixed on the stressed structural member 5 or the sliding block or the connecting rod through a bolt.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A platform goods lift comprises a goods lift main body, wherein the goods lift main body comprises an elevator shaft, an elevator car and an elevator traction system, and is characterized in that a portal frame is arranged in the elevator shaft, one side of the portal frame is connected with a bracket in a sliding mode through a first guide rail, and the lifting end of the bracket is connected with the elevator car;

the elevator car is not provided with a car wall, the bottom of the elevator car is provided with a car bottom, a stress structural member is fixed on one side of the car bottom close to the landing door, and the stress structural member is connected with a movable first pedal;

2. The platform cargo lift according to claim 1, wherein a self-standing steel frame is further disposed in the elevator shaft, one side of the self-standing steel frame abuts against one side wall of the elevator shaft, the other side of the self-standing steel frame is connected with a support frame, and the support frame is slidably connected with a counterweight through a second guide rail;

the elevator traction system comprises a traction machine, wherein the traction machine is fixed at the top of an elevator shaft and is connected with a pulley through a transmission system in a driving mode, the pulley is located between the counterweight block and the bracket, a perforated steel belt is clamped on a gear of the pulley, one end of the perforated steel belt is connected with the bracket, and the other end of the perforated steel belt is connected with the counterweight block.

3. The landing lift of claim 2, wherein the width of said counterweight is no greater than four fifths of the width of said free-standing frame, and wherein there are two of said supports, one of said supports being located at one end of said free-standing frame and the other of said supports being located adjacent to the other end of said free-standing frame and spaced from the other end of said free-standing frame, said counterweight being located between said two supports;

4. A landing freight elevator as claimed in claim 2, characterised in that the weight of the counterweight is equal to the weight of the elevator car plus one half of the rated load.

5. The landing lift of claim 1, wherein a shield is disposed within the hoistway, and a top portion of the shield is suspended from a top cross-member of the gantry.

6. A platform lift as defined in claim 1 wherein a light fixture and a control panel are secured to said shutters.

7. The landing freight elevator defined in claim 1, wherein the elevator car includes a vertical frame in a vertical direction, a horizontal frame in a horizontal direction, and a plate-like platform is erected on the horizontal frame below.

8. A landing elevator according to claim 7, wherein the elevator car is provided with a door, one side of which is connected by a pivot to a stile of the elevator car adjacent the landing door.

9. The platform cargo lift of claim 1, wherein the stressed structure is divided into a first portion, a second portion and a third portion in sequence from one end to the other end, the first step is connected to the second portion, and the second step is fixedly connected to the upper portions of the first portion and the third portion.

10. The landing ramp of claim 1, wherein the minimum clearance between the first tread and landing sill is 15mm to 18 mm; the clearance between the second pedal and the landing sill is 30-35 mm.