Telescopic sill structure of elevator car door and elevator

Abstract

The invention relates to the technical field of elevators, and particularly discloses an elevator car door telescopic sill structure and an elevator, the elevator car door telescopic sill structure comprises a car bottom plate, two sliding door plates and a plurality of sill strips; a plurality of sliding rail assemblies are arranged at the bottom of the lift car bottom plate. Sliding push plates are arranged on the lower portions of the sides, away from each other, of the two sliding door plates correspondingly. The two sliding push plates are provided with guide inclined grooves correspondingly, and the number of the guide inclined grooves is consistent with that of the sill strips. A plurality of sliding rail assemblies are arranged on the two sliding door plates, a plurality of sill strips are arranged above the sliding rail assemblies in a sliding mode correspondingly, guide straight grooves are formed in the upper surfaces of the sill strips correspondingly, and rolling shafts correspondingly embedded into the guide inclined grooves are installed in the guide straight grooves correspondingly. The phenomena of shielding and people stumbling can be avoided, jolting and vibration caused by a gap of a hall car door sill when the AGV enters and exits from the car can be avoided, the operation efficiency of an elevator is not affected, and the space of the car is not occupied.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to a telescopic sill structure of an elevator car door and an elevator. Background Art

[0002] With the development of AGV products and technologies, AGV carts have become the main tool for indoor flexible logistics; the demand for AGV cross-floor transportation is also increasing, so AGV carts need to enter the elevator car and take the elevator to other floors.

[0003] According to national standards, the clearance between the elevator hall door and the sill should be 30mm-35mm, while the commonly used indoor AGV wheel diameter is about 80mm. Therefore, when the AGV enters the car and passes through the clearance between the hall door and the sill, there will be a large bump and vibration. This bump will affect the AGV's delivery of goods, and long-term use will also cause great damage to the AGV's wheels.

[0004] The method used in the prior art is to add a flap in the car. When the car door is opened, the flap falls down to cover the gap between the sills. However, this method has the following problems:

[0005] 1. The flap must be moved only after the hall door and car door are fully opened, which greatly affects the efficiency of the elevator operation;

[0006] 2. The flap and transmission mechanism occupy the space inside the car, reducing the car's carrying capacity.

[0007] In order to solve the above problems, the present application discloses a retractable sill structure of an elevator car door and an elevator. Summary of the invention

[0008] In order to overcome the deficiencies of the prior art, the present invention discloses a telescopic sill structure of an elevator car door and an elevator.

[0009] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is: a retractable sill structure of an elevator car door, comprising a car floor, two sliding door panels and a plurality of sill strips;

[0010] A plurality of slide rail assemblies are arranged at the bottom of the car floor;

[0011] Two sliding door panels are arranged above a plurality of sill strips; sliding push plates are respectively arranged below the sides of the two sliding door panels that are away from each other, and the two sliding push plates are respectively provided with guide inclined grooves that are the same in number as the sill strips;

[0012] A plurality of sill bars are slidably arranged above a plurality of slide rail assemblies, and guide straight grooves are respectively opened on the upper surfaces of the plurality of sill bars. Rolling shafts correspondingly embedded in the guide inclined grooves are respectively installed inside the plurality of guide straight grooves.

[0013] Further preferably, the number of the slide rail assemblies is three.

[0014] Further preferably, the slide rail assembly includes a linear slide rail arranged at the bottom of the car floor, a slider slidably arranged on the linear slide rail, and a guide rod connected to the slider and passing through a plurality of sill bars.

[0015] It is further preferred that both sliding push plates are L-shaped sliding push plates, the vertical portion of the L-shaped sliding push plates is connected to the sliding door panel, and the guiding inclined groove is provided on the horizontal portion of the L-shaped sliding push plates.

[0016] Further preferably, the distances between the plurality of sill strips are 0-8 mm respectively.

[0017] Further preferably, the number of the sill strips is four.

[0018] Further preferably, one end of the four guiding chute grooves is close to each other and gathered together, and the other end of the four guiding chute grooves is far away from each other and divergent.

[0019] Further preferably, the sill strip is made of metal.

[0020] It is further preferred that it also includes a travel switch arranged on the hoistway wall, when several sill bars are extended synchronously, the travel switch contacts are disconnected and the elevator is controlled to stop running; when several sill bars are fully retracted, the travel switch contacts are closed again and the elevator is controlled to run again.

[0021] An elevator comprises an elevator retractable sill structure as described in any one of the above items.

[0022] The present invention achieves the following beneficial effects:

[0023] The several sill strips provided in the present application can be extended and retracted in the horizontal direction when the two sliding door panels are opened, without obstruction or tripping. It can also solve the bumps and vibrations caused by the gap between the sills of the hall and car doors when the AGV enters and exits the car, without affecting the elevator operation efficiency and taking up car space, and has high use value.

[0024] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure of the present invention and, together with the description, serve to explain the principles of the disclosure.

[0026] Figure 1 It is a schematic diagram of the overall structure disclosed in the present invention (two sliding door panels are in a closed state);

[0027] Figure 2 It is a schematic diagram of the overall structure disclosed in the present invention (two sliding door panels are in an open state);

[0028] Figure 3 It is a schematic diagram of the back structure of the car bottom plate disclosed in the present invention;

[0029] Figure 4 It is a schematic diagram of the extended state of several sill bars disclosed in the present invention (including travel switches);

[0030] Figure 5 It is a schematic diagram of the retracted state of several sill bars disclosed in the present invention (including travel switches);

[0031] In the figure: 10, car bottom plate; 20, sliding door panel; 30, sill strip; 31, guide straight groove; 40, sliding push plate; 41, guide inclined groove; 50, rolling shaft; 60, slide rail assembly; 61, linear slide rail; 62, slider; 63, guide rod; 70, travel switch. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] Example

[0035] In order to solve the problem that the AGV trolley in the prior art will have a large bump and vibration when passing through the gap between the hall and the car door when entering the car; Figure 1 , Figure 2 and Figure 3 As shown, the present application discloses a retractable sill structure for an elevator car door and an elevator, comprising a car floor 10, two sliding door panels 20 and a plurality of sill strips 30;

[0036] A plurality of slide rail assemblies 60 are arranged at the bottom of the car floor 10;

[0037] Two sliding door panels 20 are arranged above a plurality of sill strips 30; sliding push plates 40 are respectively arranged below the two sliding door panels 20 on the sides away from each other, and the two sliding push plates 40 are respectively provided with guide inclined grooves 41 of the same number as the sill strips 30;

[0038] The plurality of sill bars 30 are slidably disposed above the plurality of slide rail assemblies 60 , and the upper surfaces of the plurality of sill bars 30 are respectively provided with guide straight grooves 31 , and the interiors of the plurality of guide straight grooves 31 are respectively provided with rolling shafts 50 correspondingly embedded in the guide inclined grooves 41 .

[0039] During the opening process of the two sliding door panels 20 (moving away from each other), the two sliding push plates 40 will cooperate with the several rolling shafts 50 to synchronously drive the several sill strips 30 to extend and move. In this way, the several sill strips 30 will be separated and arranged at the sill gap of the hall and car doors, thereby solving the bumps and vibrations caused by the sill gap of the hall and car doors when the AGV car enters and exits the car.

[0040] When the two sliding door panels 20 are closed (moving toward each other), the two sliding push plates 40 will cooperate with the plurality of rolling shafts 50 to synchronously drive the plurality of sill strips 30 to retract, which will not affect the normal lifting and lowering operation of the elevator.

[0041] In order to ensure that the several sill bars 30 can perform smooth telescopic movement, the present application sets the number of slide rail assemblies 60 to three, each slide rail assembly 60 includes a linear slide rail 61 arranged at the bottom of the car floor 10, a slider 62 sliding on the linear slide rail 61 and a guide rod 63 connected to the slider 62 and passing through the several sill bars 30. Based on this setting, the several sill bars 30 are slidably connected to the car floor 10, and during the extension or retraction movement of the several sill bars 30, the several sill bars 30 will be guided by the guide rod 63.

[0042] In order to achieve installation with the sliding door panel 20, the two sliding push plates 40 of the present application are both L-shaped sliding push plates, the vertical part of the L-shaped sliding push plates is connected to the sliding door panel 20, and the guiding inclined groove 41 is opened on the horizontal part of the L-shaped sliding push plates.

[0043] It can be understood by those skilled in the art that the distances between the plurality of sill strips 30 are 0-8 mm respectively, and the wheel sinks only 0.2 mm, so the impact on the operation of the AGV can be ignored.

[0044] According to national standards, the elevator hall car door sill clearance should be 30mm-35mm. The number of sill strips 30 in the present application is four, which can ensure that the gap between several sill strips 30 and the sill clearance is 0-8mm, so that the wheel sinks only 0.2mm.

[0045] refer to Figure 2As shown, the other ends of the guide inclined grooves 41 diverge away from each other, so that the four sill strips 30 can be extended and retracted synchronously and the spacing between them is kept the same.

[0046] As a preferred embodiment, the sill strip 30 of the present application is made of metal material, such as iron material.

[0047] In order not to affect the normal use of the elevator and to control the elevator according to the state of the sill strip 30, in addition to the above structure, refer to Figure 4 and Figure 5 As shown, the present application also includes a travel switch 70 arranged on the shaft wall. When several sill bars 30 are extended synchronously, the contact of the travel switch 70 is disconnected and the elevator is controlled to stop running; when several sill bars 30 are fully retracted, the contact of the travel switch 70 is closed again and the elevator is controlled to run again.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable technicians familiar with the technical field to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A retractable sill structure for an elevator door. It is characterized in that It comprises a car floor (10), two sliding door panels (20) and a plurality of sill strips (30); A plurality of slide rail assemblies (60) are arranged at the bottom of the car floor (10); Two sliding door panels (20) are arranged above a plurality of sill strips (30); sliding push plates (40) are respectively arranged below the two sliding door panels (20) on the sides away from each other, and the two sliding push plates (40) are respectively provided with guide inclined grooves (41) the same number as the sill strips (30); A plurality of sill bars (30) are slidably disposed above a plurality of slide rail assemblies (60), and a guide straight groove (31) is respectively provided on the upper surface of the plurality of sill bars (30). Rolling shafts (50) correspondingly embedded in the guide inclined groove (41) are respectively installed inside the plurality of guide straight grooves (31).

2. The retractable sill structure of an elevator door according to claim 1, It is characterized in that The number of the slide rail assemblies (60) is three.

3. The retractable sill structure of an elevator door according to claim 3, It is characterized in that The slide rail assembly (60) comprises a linear slide rail (61) arranged at the bottom of the car floor (10), a slider (62) slidably arranged on the linear slide rail (61), and a guide rod (63) connected to the slider (62) and passing through a plurality of sill strips (30).

4. The retractable sill structure for an elevator door according to claim 1, It is characterized in that The two sliding push plates (40) are both L-shaped sliding push plates, the vertical portion of the L-shaped sliding push plates is connected to the sliding door plate (20), and the guiding inclined groove (41) is provided on the horizontal portion of the L-shaped sliding push plates.

5. The retractable sill structure of an elevator door according to claim 1, It is characterized in that The distances between the plurality of sill strips (30) are respectively 0-8 mm.

6. The retractable sill structure of an elevator door according to claim 1, It is characterized in that The number of the sill strips (30) is four.

7. The telescopic sill structure of an elevator according to claim 1, It is characterized in that One ends of the four guiding inclined grooves (41) are close to each other and gathered together, while the other ends of the four guiding inclined grooves (41) are far away from each other and divergent.

8. The telescopic sill structure of an elevator according to claim 1, It is characterized in that The sill strip (30) is made of metal material.

9. The retractable sill structure for an elevator door according to claim 1, It is characterized in that The invention also comprises a travel switch (70) arranged on the wall of the hoistway. When the plurality of sill bars (30) are synchronously extended, the contact of the travel switch (70) is disconnected and the elevator is controlled to stop running; when the plurality of sill bars (30) are fully retracted, the contact of the travel switch (70) is restored to close and the elevator is controlled to run again.

10. An elevator, comprising an elevator retractable sill structure according to any one of claims 1 to 9.

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