Lifting basket and lifting machine

Abstract

The utility model belongs to the technical field of hoisters, and discloses a hoisting basket and a hoister, the hoisting basket comprises a basket body, a first conveying assembly, a second conveying assembly and a driving piece; the basket body is provided with a first opening and a second opening; the first conveying assembly comprises a first conveying part and first guide plates, the first conveying part extends from the first opening to the second opening, and the two first guide plates are arranged on the two sides of the first conveying part; the second conveying assembly comprises second conveying pieces and second guide plates, the two second conveying pieces are arranged on the two sides of the first conveying assembly in a spaced mode and extend from the first opening to the second opening, and the two second guide plates are arranged on the sides, deviating from each other, of the two second conveying pieces correspondingly; the conveying surface of the second conveying part is higher than the highest point of the first conveying assembly; the driving part is in driving connection with the first conveying part and the second conveying part; the elevator adopts the lifting basket, so that the first conveying piece or the second conveying piece is selected according to different to-be-conveyed objects, and the conveying compatibility is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of elevator, especially a kind of lifting basket and elevator. BACKGROUND

[0002] Elevator is the mechanical equipment for transporting by changing potential energy, and generally includes power output assembly and lifting basket for bearing, lifting basket is set in the output end of power output assembly, and the transported material is dragged up and down by power output assembly to change the horizontal plane of the transported material;

[0003] In prior art, in order to realize automatic transfer of the transported material in and out of the lifting basket, conveying belt and guide plate are often arranged in the lifting basket, so that the transported material is conveyed in and out of the lifting basket by the conveying belt, and the guide plate guides the transported material during conveying. However, due to the different sizes of the transported material, when the larger size of the transported material is attached to the guide plate, the smaller size of the transported material cannot be guided by the guide plate; if the smaller size of the transported material is attached to the guide plate, the larger size of the transported material cannot be conveyed by the conveying belt, resulting in poor compatibility of conveying different sizes of the transported material. SUMMARY

[0004] The utility model aims at providing a kind of lifting basket and elevator, improve the compatibility of conveying.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Lifting basket, the lifting basket includes:

[0007] Basket body, the basket body is provided with first mouth and second mouth;

[0008] First conveying assembly is arranged in the basket body;The first conveying assembly includes first conveying piece and first guide plate, the first conveying piece extends from the first mouth to the second mouth, and two first guide plates are arranged on both sides of the first conveying piece to guide the transported material conveyed by the first conveying piece;

[0009] Second conveying assembly is arranged in the basket body;The second conveying assembly includes two second conveying pieces and second guide plate, two second conveying pieces are arranged on both sides of the first conveying assembly with interval, and extend from the first mouth to the second mouth, two second guide plates are arranged on the side of two second conveying pieces away from each other to guide the transported material conveyed by the second conveying piece;The conveying surface of the second conveying piece is higher than the highest point of the first conveying assembly;

[0010] A driving member, the first conveying member and the second conveying member are drivingly connected to an output end of the driving member, so as to drive the first conveying member and the second conveying member to convey the to-be-conveyed objects.

[0011] In some embodiments, the driving member is one, and the driving member synchronously drives the first conveying member and the second conveying member.

[0012] In some embodiments, the first conveying assembly comprises a first conveying frame, and the second conveying assembly comprises a second conveying frame, the first conveying frame and the second conveying frame are arranged in the basket, the first conveying member is arranged on the first conveying frame, and the second conveying member is arranged on the second conveying frame, and the height of the second conveying frame is higher than the height of the first conveying frame.

[0013] In some embodiments, the driving member is arranged below the conveying surface of the first conveying member.

[0014] Also provided is a lifting machine, which comprises a lifting driving assembly and a lifting basket as described above, the lifting basket is connected to an output end of the lifting driving assembly, and the lifting driving assembly can drive the lifting basket to ascend and descend.

[0015] In some embodiments, the lifting driving assembly comprises a lifting motor, a hollow speed reducer and a main shaft, the output end of the lifting motor is connected to the hollow speed reducer, the main shaft is inserted into the hollow speed reducer, and the lifting basket is connected to the main shaft through a load-bearing chain.

[0016] In some embodiments, the lifting machine further comprises a lifting frame body, the lifting driving assembly is arranged on the lifting frame body, the lifting driving assembly drives the lifting basket to ascend and descend along the height direction of the lifting frame body, and the lifting frame body has a plurality of connection ports arranged at intervals along the height direction thereof.

[0017] In some embodiments, the lifting machine further comprises a position monitoring member, the position monitoring member is arranged at the height of the connection port of the lifting frame body, and the position monitoring member is used for sensing the lifting basket reaching the height of the connection port.

[0018] In some embodiments, the lifting frame body is further provided with two limit monitoring members, the two limit monitoring members are arranged at intervals along the height direction of the lifting frame body, the connection port is located between the two limit monitoring members, and the limit monitoring members are used for limiting the ascending height and the descending height of the lifting basket.

[0019] In some embodiments, the bottom of the lifting frame body is provided with a buffer.

[0020] The utility model discloses beneficial effect:

[0021] The conveying surface of the second conveying part is higher than the highest point of the first conveying assembly, and the second conveying part is provided with two and is located at the two sides of the first conveying assembly, when conveying, the smaller size of the conveying object can be placed on the first conveying part and is conveyed, and the first guide plate is used for guiding, and the larger size of the conveying object can be placed on the second conveying part and is conveyed, and the second guide plate is used for guiding, when conveying the larger conveying object, the conveying surface of the second conveying part is higher than the highest point of the first conveying assembly, so that the larger conveying object does not interfere with the first conveying assembly, and then the first conveying part or the second conveying part can be selected according to the different conveying object, and the compatibility of conveying is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the schematic diagram of the lifting basket in the utility model;

[0023] Figure 2 It is Figure 1 The enlarged view of A in the utility model;

[0024] Figure 3 It is Figure 1 The enlarged view of B in the utility model;

[0025] Figure 4 It is the schematic diagram of the elevator in the utility model;

[0026] Figure 5 It is the schematic diagram of the hollow speed reducer connected with the lifting motor in the utility model;

[0027] Figure 6 It is the schematic diagram of the counterweight in the utility model

[0028] Figure 7 It is the schematic diagram of the buffer in the utility model.

[0029] In the drawing:

[0030] 1, the lifting basket;

[0031] 11, the basket body; 12, the first conveying assembly; 121, the first conveying part; 122, the first guide plate; 123, the first conveying frame; 13, the second conveying assembly; 131, the second conveying part; 132, the second guide plate; 133, the second conveying frame; 14, the driving part; 15, the chain pull rod; 16, the monitoring assembly; 161, the speed reduction monitoring part; 162, the stop monitoring part;

[0032] 2, the lifting driving assembly; 21, the lifting motor; 22, the hollow speed reducer; 23, the main shaft; 24, the driving sprocket; 25, the driven sprocket; 26, the bearing chain;

[0033] 3, lifting frame; 31, connection port;

[0034] 4, positioning monitoring member;

[0035] 5, counterweight; 51, counterweight frame; 52, weight block; 53, first sliding groove; 54, second sliding groove; 55, buffer pad; 56, screw rod;

[0036] 6, limit monitoring member;

[0037] 7, buffer; 71, buffer support; 72, buffer block;

[0038] 8, safety clamp;

[0039] 9, speed limiting rope;

[0040] 10, tensioning wheel;

[0041] 20, clamping guide rail. DETAILED DESCRIPTION

[0042] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0043] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0044] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0045] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0046] As Figures 1 to 7 shown, the present application provides a lifting basket, which is used for a lifting machine to lift the conveying objects; the lifting basket 1 comprises a basket body 11, a first conveying assembly 12, a second conveying assembly 13 and a driving member 14; the basket body 11 is provided with a first port and a second port; the first conveying assembly 12 and the second conveying assembly 13 are both arranged in the basket body 11; the first conveying assembly 12 comprises a first conveying member 121 and a first guide plate 122, the first conveying member 121 extends from the first port to the second port, and two first guide plates 122 are arranged on both sides of the first conveying member 121 to guide the conveying objects conveyed by the first conveying member 121; the second conveying assembly 13 comprises a second conveying member 131 and a second guide plate 132, two second conveying members 131 are arranged on both sides of the first conveying assembly 12 in a spaced manner, and both extend from the first port to the second port, and two second guide plates 132 are arranged on the side of the two second conveying members 131 away from each other to guide the conveying objects conveyed by the second conveying members 131; the conveying surface of the second conveying member 131 is higher than the highest point of the first conveying assembly 12, and the first conveying member 121 and the second conveying member 131 are drivingly connected to the output end of the driving member 14 to drive the first conveying member 121 and the second conveying member 131 to convey the conveying objects.

[0047] The first conveying member 121 and the second conveying member 131 are correspondingly provided with the first guide plate 122 and the second guide plate 132, a conveying channel is formed between the two first guide plates 122, another conveying channel is formed between the two second guide plates 132, and the first guide plate 122 and the second guide plate 132 respectively guide the conveyed objects conveyed by the first conveying member 121 and the second conveying member 131. The conveying surface of the second conveying member 131 is higher than the highest point of the first conveying assembly 12, and the second conveying member 131 is provided with two second conveying members, which are respectively located on the two sides of the first conveying assembly 12. Therefore, when the driving member 14 drives the conveying, the smaller objects to be conveyed can be placed on the first conveying member 121 for conveying, and the first guide plate 122 guides the smaller objects to be conveyed. The larger objects to be conveyed can be placed on the second conveying member 131 for conveying, and the second guide plate 132 guides the larger objects to be conveyed. When the larger objects to be conveyed are conveyed, the conveying surface of the second conveying member 131 is higher than the highest point of the first conveying assembly 12, so that the larger objects to be conveyed do not interfere with the first conveying assembly 12. Therefore, the first conveying member 121 or the second conveying member 131 can be selected according to different objects to be conveyed, and the compatibility of the conveying is improved.

[0048] In some embodiments, the first conveying member 121 and the second conveying member 131 can each include any one of a conveying belt, a conveying chain or a conveying roller.

[0049] As shown in FIGS. 1 to 3, Figure 1 and Figure 3 Specifically, the first conveying member 121 includes a first conveying frame 123, and the second conveying assembly 13 includes a second conveying frame 133. The first conveying frame 123 and the second conveying frame 133 are arranged in the basket body 11. The first conveying member 121 is located on the first conveying frame 123, and the second conveying member 131 is located on the second conveying frame 133. The height of the second conveying frame 133 is higher than the height of the first conveying frame 123, so that the heights of the first conveying member 121 and the second conveying member 131 are different. The first conveying assembly 12 and the second conveying assembly 13 further include, but are not limited to, a transmission member such as a bearing or a transmission shaft. The conveying belt, the conveying chain or the conveying roller is connected to the first conveying frame 123 or the second conveying frame 133 through the transmission member. It can be understood that the conveying belt, the conveying chain or the conveying roller is a commonly used conveying component in the prior art, and the specific structure will not be described again. The first guide plate 122 and the second guide plate 132 are respectively arranged on the first conveying frame 123 and the second conveying frame 133 corresponding to the first conveying member 121 and the second conveying member 131, so as to improve the stability of the installation of the first conveying member 121, the second conveying member 131, the first guide plate 122 and the second guide plate 132.

[0050] In some embodiments, the driving member 14 is provided, the first conveying member 121 and the second conveying member 131 are connected to the output end of the same driving member 14, so that the first conveying member 121 and the second conveying member 131 can be synchronously driven by one driving member 14. For example, the driving member 14 can be an electric motor. Using one electric motor facilitates control and avoids frequent switching of the control motor when conveying different sizes of the to-be-conveyed objects.

[0051] As shown in Figure 2 In some embodiments, the first port and the second port are each provided with a monitoring assembly 16, the monitoring assembly 16 includes a deceleration monitoring member 161 and a stop monitoring member 162, the deceleration monitoring member 161 and the stop monitoring member 162 are arranged in the conveying direction of the second conveying member 131, the stop monitoring member 162 is closer to the conveying end point of the second conveying member 131 than the deceleration monitoring member 161, wherein the conveying end point refers to the conveying head end or tail end of the conveying belt, the conveying chain or the conveying roller. Taking the second conveying member 131 as an example, when the second conveying member 131 is conveying, the to-be-conveyed object is first sensed by the deceleration monitoring member 161, the deceleration monitoring member 161 sends a signal, the second conveying member 131 can reduce the conveying speed, the to-be-conveyed object continues to be conveyed to the stop monitoring member 162, the stop monitoring member 162 sends a signal, the second conveying member 131 stops conveying the to-be-conveyed object, so that the combination of the deceleration monitoring member 161 and the stop monitoring member 162 improves the stopping accuracy of the second conveying member 131. It can be understood that when the first conveying assembly 12 is conveying the to-be-conveyed object, the above monitoring assembly 16 can also be used for monitoring.

[0052] As shown in Figure 4 The application also provides a lifting machine, the lifting machine includes a lifting driving assembly 2 and the lifting basket 1 described above, the lifting basket 1 is connected to the output end of the lifting driving assembly 2, so as to drive the lifting basket 1 to ascend and descend by the lifting driving assembly 2, thereby changing the height of the to-be-conveyed object in the lifting basket 1.

[0053] In some embodiments, the hoist further comprises a hoist frame 3, the hoist drive assembly 2 is arranged on the hoist frame 3, the hoist drive assembly 2 drives the hoist basket 1 to ascend and descend along the height of the hoist frame 3, the hoist frame 3 is arranged to facilitate the arrangement of the hoist drive assembly 2 and other components, the hoist frame 3 is provided with a plurality of connection ports 31 arranged along the height direction of the hoist frame 3, so that the hoist basket 1 can be connected to the connection ports 31 to carry the objects to be transported. In the current embodiment, the hoist further comprises a positioning monitoring member 4 arranged on the hoist frame 3 at the height of the connection ports 31, so that the positioning monitoring member 4 can sense whether the hoist basket 1 has reached the height of the connection ports 31, and the hoist basket 1 can be accurately stopped at the height of the connection ports 31, the positioning monitoring member 4 can be connected to the hoist drive assembly 2 through the control system, thereby facilitating automatic control, and the positioning monitoring member 4 can be, but is not limited to, a groove type photoelectric sensing member, and the hoist basket 1 is also provided with a groove type photoelectric sensing plate matched with the groove type photoelectric sensing member.

[0054] As shown in Figure 4 and Figure 5 In some embodiments, the hoist drive assembly 2 is arranged at the top end of the hoist frame 3, the hoist drive assembly 2 comprises a hoist motor 21, a hollow speed reducer 22 and a main shaft 23, the hollow speed reducer 22 is connected to the output end of the hoist motor 21, the main shaft 23 is inserted into the hollow speed reducer 22, the hollow speed reducer 22 is a prior art, and the main shaft 23 is connected to the top end of the hoist frame 3 through bearings, so that the main shaft 23 can rotate relative to the hoist frame 3 under the drive of the hoist motor 21. In addition, the use of the hollow speed reducer 22 reduces the chain transmission between the hoist motor 21 and the traditional speed reducer, thereby reducing the instantaneous drop when placing the objects to be transported into the hoist basket 1, and ensuring the stability of the transmission. The main shaft 23 is further provided with a plurality of driving sprockets 24, and the top end of the hoist frame 3 is further provided with a plurality of driven sprockets 25, the driven sprockets 25 are also connected to the hoist frame 3 through bearings, and the bearing chain 26 is wound around the driving sprockets 24 and the driven sprockets 25 to drive the hoist basket 1. More specifically, the hoist is further provided with a counterweight 5, one end of the bearing chain 26 is connected to the hoist basket 1, the other end of the bearing chain 26 is connected to the counterweight 5, and the middle part of the bearing chain 26 is wound around the driving sprockets 24 and the driven sprockets 25, thereby improving the stability of the hoist basket 1 through the counterweight 5. Exemplarily, the counterweight 5 and the hoist basket 1 are both provided with chain pull rods 15 for connecting the bearing chain 26.

[0055] As shown in Figure 6As shown, specifically, the counterweight 5 includes a counterweight frame 51, the inner side wall of the counterweight frame 51 is provided with a first sliding groove 53 along the height direction thereof, and a plurality of weight blocks 52 are stacked along the first sliding groove 53 in the counterweight frame 51, the weight blocks 52 are further provided with through holes, a screw rod 56 is threaded through the top of the counterweight frame 51 and is inserted on the plurality of stacked weight blocks 52 so as to be kept stable. Further, in order to facilitate the installation of the weight blocks 52, the first sliding groove 53 is provided with a notch near the top of the counterweight frame 51, so that the weight blocks 52 can be put into the counterweight frame 51. In addition, in order to ensure the stability of the counterweight 5, the outer side wall of the counterweight frame 51 is further provided with a second sliding groove 54, and the lifting frame 3 is provided with a sliding block arranged along the height direction thereof, so that the counterweight 5 can be lifted along the sliding block. Furthermore, the bottom of the counterweight frame 51 is provided with a buffer pad 55, so as to provide buffer protection.

[0056] As shown in Figure 4 In some embodiments, the lifting frame 3 is further provided with a limit monitoring member 6, and two limit monitoring members 6 are arranged along the height direction of the lifting frame 3, one of which is close to the top of the lifting frame 3, and the other is close to the bottom of the lifting frame 3, and the connection port 31 is located between the two limit monitoring members 6, so as to limit the lifting and lowering height of the lifting basket 1 through the two limit monitoring members 6, and avoid excessive lifting and lowering. Exemplarily, the limit monitoring member 6 is an limit switch, and the corresponding lifting basket 1 is further provided with a limit switch sensing plate matched with the limit switch.

[0057] As shown in Figure 1 and 4 In some embodiments, in order to avoid the rapid falling of the lifting basket 1 during lifting and lowering, and to avoid the danger of falling, the lifting machine further includes a speed limiter, a safety clamp 8, a speed limiting rope 9, a tensioning wheel 10 and a clamping guide rail 20, the clamping guide rail 20 is arranged along the height direction of the lifting frame 3, the speed limiter is arranged at the top end of the lifting frame 3, the tensioning wheel 10 is arranged at the bottom end of the lifting frame 3, the tensioning wheel 10 and the speed limiter are connected through the speed limiting rope 9, the safety clamp 8 is arranged on the lifting basket 1, the operating pull rod of the safety clamp 8 is arranged on the speed limiting rope 9, the speed limiter is signal connected with the safety clamp 8, when the descending speed of the lifting basket 1 exceeds the set value, the speed limiter will cut off the power supply circuit, so as to stop the operation of the lifting basket 1; if the lifting basket 1 still cannot stop, the speed limiter will activate the safety clamp 8 to clamp the clamping guide rail 20, so as to forcibly stop the lifting basket 1 and ensure its safety. The anti-falling principle and structure of the speed limiter and the safety clamp 8 are both prior art, and will not be described in detail.

[0058] As shown in Figure 4 and Figure 7As shown, in some embodiments, the bottom of the lifting frame body 3 is provided with a buffer 7, which can provide buffering for the descending lifting basket 1, and the buffer 7 comprises a buffer support 71 and a buffer block 72 arranged at the top end of the buffer support 71. Exemplarily, the buffer block 72 can be made of rubber material, but is not limited thereto.

[0059] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A lifting basket, characterized in that The lifting basket (1) comprises: a basket body (11) provided with a first opening and a second opening; a first conveying assembly (12) arranged in the basket body (11); the first conveying assembly (12) comprises a first conveying member (121) and first guide plates (122), the first conveying member (121) extends from the first opening to the second opening, and two first guide plates (122) are arranged on both sides of the first conveying member (121) to guide the to-be-conveyed objects conveyed by the first conveying member (121); a second conveying assembly (13) arranged in the basket body (11); the second conveying assembly (13) comprises two second conveying members (131) and second guide plates (132), the two second conveying members (131) are arranged on both sides of the first conveying assembly (12) at intervals, and both extend from the first opening to the second opening, and two second guide plates (132) are arranged on the sides of the two second conveying members (131) away from each other to guide the to-be-conveyed objects conveyed by the second conveying members (131); the conveying surface of the second conveying member (131) is higher than the highest point of the first conveying assembly (12); a driving member (14), the first conveying member (121) and the second conveying member (131) are drivingly connected to the output end of the driving member (14) to drive the first conveying member (121) and the second conveying member (131) to convey the to-be-conveyed objects.

2. The lifting basket of claim 1, wherein, The driving member (14) is provided with one, and the driving member (14) synchronously drives the first conveying member (121) and the second conveying member (131).

3. The lifting basket of claim 1, wherein, The first conveying assembly (12) comprises a first conveying frame (123), and the second conveying assembly (13) comprises a second conveying frame (133); the first conveying frame (123) and the second conveying frame (133) are arranged in the basket body (11), the first conveying member (121) is arranged on the first conveying frame (123), the second conveying member (131) is arranged on the second conveying frame (133), and the height of the second conveying frame (133) is higher than the height of the first conveying frame (123).

4. The lift basket of claim 1, wherein, The driving member (14) is arranged below the conveying surface of the first conveying member (121).

5. A hoist characterised by The elevator comprises an elevator driving assembly (2) and the lifting basket (1) according to any one of claims 1-4, the lifting basket (1) is connected to the output end of the elevator driving assembly (2), and the elevator driving assembly (2) can drive the lifting basket (1) to ascend and descend.

6. The elevator of claim 5, wherein, The elevator driving assembly (2) comprises a lifting motor (21), a hollow speed reducer (22), and a main shaft (23); the output end of the lifting motor (21) is connected to the hollow speed reducer (22), the main shaft (23) is inserted into the hollow speed reducer (22), and the lifting basket (1) is connected to the main shaft (23) through a load-bearing chain (26).

7. The elevator of claim 5, wherein, The elevator further comprises an elevator frame (3), the elevator drive assembly (2) is arranged on the elevator frame (3), the elevator drive assembly (2) drives the elevator basket (1) to ascend and descend along the height direction of the elevator frame (3), and the elevator frame (3) is provided with a plurality of connection ports (31) arranged at intervals along the height direction.

8. The elevator of claim 7, wherein, The elevator further comprises a position monitoring device (4), the position monitoring device (4) is arranged at the height of the connection port (31) of the elevator frame (3), and the position monitoring device (4) is used for sensing the elevator basket (1) reaching the height of the connection port (31).

9. The elevator of claim 7, wherein, The elevator frame (3) is further provided with a limit monitoring device (6), two limit monitoring devices (6) are arranged at intervals along the height direction of the elevator frame (3), the connection port (31) is located between the two limit monitoring devices (6), and the limit monitoring device (6) is used for limiting the ascending height and the descending height of the elevator basket (1).

10. The elevator of claim 7, wherein, The bottom of the elevator frame (3) is provided with a buffer (7).

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