Door pushing blocking device for elevator and elevator comprising door pushing blocking device

Abstract

The utility model relates to a door pushing blocking device for an elevator and the elevator comprising the door pushing blocking device. The door pushing blocking device for the elevator comprises at least one blocking plate arranged on sills on the two sides of the elevator and / or door pockets close to the sills; the at least one bracket is arranged on the side surface of the door leaf of the elevator corresponding to the barrier plate; the blocking plate is arranged on the support, the blocking rod is arranged on the support, and when the elevator is in a door pushing state and a door leaf of the elevator expands outwards, the blocking plate can limit the blocking rod to move so as to limit the expanding angle of the door leaf, and therefore the door pushing gap of the elevator does not exceed the preset distance. The door pushing blocking device for the elevator is simple in structure, good in reliability, low in cost, beneficial to standardized production while meeting the requirements of national regulations, and more adaptive to different elevator landing doors.

Description

Technical Field

[0001] This utility model relates to the field of elevators, and more particularly to a door-blocking device for elevators and an elevator including the device. Background Technology

[0002] In modern architecture, elevators have become an indispensable component of high-rise buildings, shopping malls, and office buildings. With economic development, the country places greater emphasis on safety, thus imposing higher standards on elevator testing and inspection.

[0003] According to the latest GB / T 10059-2023 Elevator Test Method 6.8.1.3 regarding the landing door clearance test, the landing door is locked and the car door is closed during the test. For center-opening doors, along the opening direction, a force of 150N is simultaneously applied to each of the fastest-opening door leaves at its most unfavorable point using a force-measuring device, and the clearance between the fastest-opening door leaves is checked. For side-opening doors, along the opening direction, a force of 150N is applied to the fastest-opening door leaf at its most unfavorable point using a force-measuring device, and the clearance between the fastest-opening door leaf and the column is checked. Furthermore, according to GB / T 7588.1-2020 Elevator Manufacturing and Installation Safety Specifications, for center-opening doors, the landing door clearance during the test can be greater than 6mm, but not greater than a total of 45mm; for side-opening doors, the landing door clearance during the test can be greater than 6mm, but not greater than 30mm.

[0004] To meet the aforementioned standards, existing elevators typically employ measures such as heightened guide rails, longer and thicker hanging plates, and thicker door panels to enhance the structural strength of the door panels. This results in a more complex overall elevator structure. Furthermore, the solutions used for different elevator landing doors cannot be completely standardized, hindering standardized production. Moreover, when the landing door panels are extremely high and / or extremely narrow, the aforementioned solutions not only make it difficult to ensure that the door clearance meets national regulations, leading to poor elevator reliability, but also easily increase the difficulty and cost of design, manufacturing, and processing.

[0005] The information disclosed in the background section of this utility model is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model aims to provide a door blocking device for elevators. It has a simple structure, good reliability and low cost. It meets the requirements of national regulations and is conducive to standardized production. It is also more adaptable to different elevator landing doors.

[0007] According to a first aspect of the present invention, the present invention provides a door-opening blocking device for an elevator, comprising: at least one blocking plate disposed on the sills on both sides of the elevator and / or on the door frame near the sills; at least one bracket disposed on the side of the elevator door leaf corresponding to the blocking plate; and a blocking rod disposed on the bracket, wherein when the elevator is in a door-opening state causing the elevator door leaf to open outward, the blocking plate can restrict the movement of the blocking rod to limit the outward opening angle of the door leaf, thereby ensuring that the door-opening gap of the elevator does not exceed a predetermined distance.

[0008] According to an exemplary embodiment of the present invention, the blocking plate is provided with a first blocking surface, a second blocking surface and a third blocking surface, which are connected in sequence to form a groove with an opening.

[0009] According to an exemplary embodiment of the present invention, the first end of the blocking rod is mounted on the bracket, the second end of the blocking rod extends toward the blocking plate and is inserted below the groove, and when the elevator door is opened normally, the second end of the blocking rod can be moved out from the opening of the groove.

[0010] According to an exemplary embodiment of the present invention, when the elevator door is normally closed, the distance between the second end of the blocking rod and the first blocking surface is no more than 3mm. When the elevator is in a door-opening state, the second end of the blocking rod can slide upward along the first blocking surface to the top of the groove and abut against the second and third blocking surfaces. When the second end of the blocking rod abuts against the second and third blocking surfaces, the door-opening gap of the elevator door is at its maximum.

[0011] According to an exemplary embodiment of the present invention, the first blocking surface is inclined, the second blocking surface is arranged in a horizontal direction, and the third blocking surface is arranged in a vertical direction.

[0012] According to an exemplary embodiment of the present invention, the blocking plate includes: a first plate disposed on the sills on both sides of the elevator and / or on the door frame near the sills; and a second plate connected to a corner of the upper end of the first plate; wherein the first blocking surface, the second blocking surface and the third blocking surface are disposed on the second plate.

[0013] According to an exemplary embodiment of the present invention, the bracket includes: a third plate disposed on the side of the elevator door leaf; and a fourth plate vertically connected to the side of the third plate and disposed parallel to the first plate of the blocking plate, wherein the fourth plate is provided with a mounting hole; wherein the blocking rod is inserted into the mounting hole to be mounted on the fourth plate.

[0014] According to an exemplary embodiment of the present invention, the elevator door is configured as two doors split in the middle; the baffle is configured as two and is disposed opposite to each other on the sills on both sides of the elevator and / or on the door frame near the sills; the bracket is configured as two corresponding to the baffle, one of which is disposed on the left side of the left door of the elevator, and the other of which is disposed opposite to the right side of the right door of the elevator.

[0015] According to an exemplary embodiment of the present invention, the elevator door is the door of the elevator landing door and / or the door of the elevator car.

[0016] According to a second aspect of the present invention, the present invention provides an elevator, including a door blocking device for the elevator as described in the first aspect.

[0017] This utility model discloses a door-opening blocking device for elevators. When the elevator door is in a door-opening state and the door leaves are opening outward, the blocking plate restricts the movement of the blocking rod to limit the outward opening angle of the door leaves, so that the door-opening gap of the elevator does not exceed a predetermined distance, thereby meeting the national requirements and ensuring the safety of the elevator.

[0018] Meanwhile, the elevator door blocking device of this utility model has the characteristics of simple structure, high reliability and low cost, which is conducive to standardized production and more adaptable to different elevator landing doors.

[0019] In addition, the door-opening blocking device for elevators of this utility model can also be used for elevator car doors to prevent passengers inside the elevator car from opening the doors to save themselves when the car is not level with the floor, thereby avoiding the danger of falling into the shaft and further improving the safety of the elevator.

[0020] The device of this invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and subsequent embodiments incorporated herein, which together serve to explain the particular principles of this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an elevator door blocking device according to an exemplary embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of an elevator door blocking device installed on both sides of an elevator according to an exemplary embodiment of the present invention.

[0023] Figure 3 for Figure 2 A magnified view of region A in the diagram.

[0024] Figure 4 This is a schematic diagram of an exemplary embodiment of the present invention, shown from another direction, of a door-opening blocking device for an elevator installed in an elevator.

[0025] Figure 5 This is a schematic diagram of the structure of the blocking plate of an elevator door blocking device according to an exemplary embodiment of the present invention.

[0026] Figure 6 This is a structural schematic diagram of a bracket for an elevator door-opening blocking device according to an exemplary embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10: Threshold 20: Door frame

[0029] 30: Door leaf 100: Barrier plate

[0030] 110: First blocking surface; 120: Second blocking surface

[0031] 130: Third blocking surface; 140: Groove

[0032] 150: First board 160: Second board

[0033] 200: Bracket 210: Third Plate

[0034] 220: Fourth plate; 230: Mounting hole

[0035] 300: Stop bar.

[0036] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the basic principles of this invention. The specific design features disclosed in this invention (including, for example, specific dimensions, orientations, positions, and shapes) will be determined in part by the specific application and environment in which they will be used.

[0037] Throughout these figures, the same reference numerals denote the same or equivalent parts of the present invention. Detailed Implementation

[0038] The present invention will now be described in detail with reference to various embodiments, examples of which are presented in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the present invention to these exemplary embodiments. Rather, the present invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments that may be included within the spirit of the present invention and the scope defined by the appended claims.

[0039] The following is combined with Figures 1 to 6 The structure of the door-opening blocking device for elevators according to the present invention will be described.

[0040] Figure 1 This is a schematic diagram of the overall structure of an elevator door blocking device according to an exemplary embodiment of the present invention. Figure 2 This is a schematic diagram of an elevator door blocking device installed on both sides of an elevator according to an exemplary embodiment of the present invention. Figure 3 for Figure 2 A magnified view of region A in the diagram.

[0041] Combination Figures 1 to 3 As shown, the elevator door-opening blocking device according to this embodiment includes at least one blocking plate 100, at least one bracket 200, and a blocking rod 300. The blocking plate 100 is disposed on the sill 10 on both sides of the elevator and / or on the door frame 20 near the sill 10. The bracket 200 is disposed on the side of the elevator door leaf 30 corresponding to the blocking plate 100. The blocking rod 300 is disposed on the bracket 200, and when the elevator is in a door-opening state causing the elevator door leaf 30 to open outwards, the blocking plate 100 can restrict the movement of the blocking rod 300 to limit the outward opening angle of the door leaf 30, thereby ensuring that the door-opening gap of the elevator does not exceed a predetermined distance.

[0042] It should be noted that when the elevator doors are normally closed, the upper part of the doors is usually locked by mechanical components. This makes it easy for the lower part of the elevator doors to open outwards to both sides of the elevator when the elevator is in a prying-open state, thus creating a gap. The greater the prying force, the greater the outward opening angle of the door 30, and the larger the gap. The elevator door-opening blocking device of this utility model restricts the movement of the blocking rods 300 on the brackets 200 on the sides of the elevator door 30 by setting blocking plates 100 on the sills 10 on both sides of the elevator and / or on the door frames 20 near the sills 10. This restricts the outward opening angle of the elevator door 30, ensuring that the gap does not exceed a predetermined distance, thus meeting national requirements and ensuring elevator safety.

[0043] Specifically, in an exemplary embodiment of this utility model, combined with Figure 5 As shown, the baffle plate 100 is provided with a first baffle surface 110, a second baffle surface 120 and a third baffle surface 130. The first baffle surface 110, the second baffle surface 120 and the third baffle surface 130 are connected in sequence to form a groove 140 with an opening.

[0044] Furthermore, combined Figure 1 and Figure 4As shown, the first end of the blocking rod 300 is mounted on the bracket 200, and the second end of the blocking rod 300 extends towards the blocking plate 100 and inserts into the lower part of the groove 140. When the elevator door 30 is normally opened, the second end of the blocking rod 300 can be moved out of the opening of the groove 140, thereby ensuring that the elevator can work normally. Preferably, in this embodiment, the second end of the blocking rod 300 can move out of the opening of the groove 140 without contacting the edge of the groove 140, so as to avoid interference between the blocking rod 300 and the blocking plate 100 and affect the normal operation of the elevator.

[0045] Furthermore, when the elevator door is normally closed, the distance between the second end of the blocking rod 300 and the first blocking surface 110 is no more than 3mm. This ensures that when the elevator is in a pry-open state causing the door to open outwards, the second end of the blocking rod 300 can abut against the first blocking surface 110, thereby restricting the movement of the blocking rod 300 in a direction perpendicular to the first blocking surface 110. Preferably, the distance between the second end of the blocking rod 300 and the first blocking surface 110 can be set to 1-2mm. In this case, the first blocking surface 110 has the best restrictive effect on the blocking rod 300, which further improves the blocking effect of the pry-open blocking device.

[0046] Furthermore, in this embodiment, when the elevator is in a door-opening state, the second end of the blocking rod 300 can slide upward along the first blocking surface 110 to the top of the groove 140 and abut against the second blocking surface 120 and the third blocking surface 130. The door-opening gap is at its maximum when the second end of the blocking rod 300 abuts against the second blocking surface 120 and the third blocking surface 130. This maximum gap does not exceed the aforementioned predetermined distance to meet national regulations and ensure elevator safety.

[0047] Furthermore, in this embodiment, combined with Figure 3 and Figure 5As shown, the first blocking surface 110 is inclined and can be configured as a plane with a predetermined inclination angle. The second blocking surface 120 is horizontally oriented and can be configured as a plane, and the third blocking surface 130 is vertically oriented and can be configured as a plane. The first blocking surface 110 restricts the movement of the blocking rod 300 in a direction perpendicular to the first blocking surface 110, the second blocking surface 120 restricts the upward movement of the blocking rod 300, and the third blocking surface 130 restricts the movement of the blocking rod 300 in the direction the door opens. Through the cooperation of the first blocking surface 110, the second blocking surface 120, and the third blocking surface 130, the movement of the blocking rod 300 can be restricted, thereby limiting the outward opening angle of the elevator door 30 and ensuring that the door opening gap does not exceed a predetermined distance. In addition, as an option, the first blocking surface 110, the second blocking surface 120 and the third blocking surface 130 can also be set to other forms of surface shape in other directions. For example, the tilt angle of the first blocking surface 110 can be adjusted as appropriate, and the first blocking surface 110 can also be set as a curved surface. This utility model is not limited to this, as long as it can achieve the above-mentioned blocking effect.

[0048] According to an exemplary embodiment of the present invention, in conjunction with Figure 4 and 5 As shown, the blocking plate 100 includes a first plate 150 and a second plate 160. The first plate 150 is disposed on the sills on both sides of the elevator and / or on the door frame near the sills, and the second plate 160 is connected to a corner of the upper end of the first plate. A first blocking surface 110, a second blocking surface 120, and a third blocking surface 130 are disposed on the second plate 160. Further, the first plate 150 can be part of the sills and / or door frame, or it can be installed on the sills on both sides of the elevator and / or on the door frame near the sills by means of connecting bolts or welding, etc., and this utility model is not limited thereto.

[0049] According to an exemplary embodiment of the present invention, in conjunction with Figure 4 and 6As shown, the bracket 200 includes a third plate 210 and a fourth plate 220. The third plate 210 is disposed on the side of the elevator door leaf. The fourth plate 220 is vertically connected to the side of the third plate 210 and is disposed parallel to the first plate 150 of the blocking plate 100. The third plate 210 can be part of the door leaf, or it can be installed on the side of the elevator door leaf by means of connecting bolts or welding. The fourth plate 220 can be integrally formed with the third plate 210, or it can be connected to the side of the third plate 210 by welding or other connection methods; this invention is not limited thereto. Furthermore, the fourth plate 220 is provided with mounting holes 230, and the blocking rod 300 is inserted into the mounting holes 230 to be installed on the fourth plate 220. Even further, the blocking rod 300 can be a threaded component such as a screw or stud, to facilitate installation on or removal from the fourth plate 220; this invention is not limited thereto.

[0050] According to an exemplary embodiment of the present invention, in conjunction with Figure 2 Figure 2 As shown, the elevator door 30 is configured as two split doors. That is, when the elevator door blocking device of this invention is used for elevators with two split doors, two blocking plates 100 are provided and positioned opposite each other on the sills 10 and / or door frames 20 near the sills on both sides of the elevator. Simultaneously, two brackets 200 are provided corresponding to the blocking plates 100, with one positioned on the left side of the left door and the other oppositely positioned on the right side of the right door. Thus, for elevators with split doors, when the elevator is in a split-door state, the elevator door blocking device of this invention can simultaneously restrict the outward opening of the elevator door from both sides, further improving the blocking effect of the door blocking device.

[0051] Furthermore, it should be clear that the elevator door blocking device of this utility model can also be used for multiple doors that are split in the middle or open to the side. In this case, the number of blocking plates 100 and the corresponding brackets 200 and their installation positions can be adjusted according to the actual situation, which will not be elaborated in this article.

[0052] According to an exemplary embodiment of this utility model, the elevator door leaf is the door leaf of the elevator landing door and / or the door leaf of the elevator car. That is, the bracket 200 of this utility model can be positioned on the side of the elevator landing door leaf corresponding to the blocking plate 100 to limit the outward opening angle of the landing door leaf, thereby ensuring that the gap between the landing door and the door does not exceed a predetermined distance. Alternatively, the bracket 200 can be positioned on the side of the elevator car door leaf corresponding to the blocking plate 100 to limit the outward opening angle of the car door leaf, thereby ensuring that the gap between the car door and the door does not exceed a predetermined distance. Thus, the door-blocking device of this utility model can not only block the door from opening at the elevator landing door but also block the door from opening at the elevator car, further ensuring elevator safety.

[0053] This utility model discloses a door-opening blocking device for elevators. When the elevator door is in a door-opening state and the door leaves are opening outward, the blocking plate restricts the movement of the blocking rod to limit the outward opening angle of the door leaves, so that the door-opening gap of the elevator does not exceed a predetermined distance, thereby meeting the national requirements and ensuring the safety of the elevator.

[0054] Meanwhile, the elevator door blocking device of this utility model has the characteristics of simple structure, high reliability and low cost, which is conducive to standardized production and more adaptable to different elevator landing doors.

[0055] In addition, the door-opening blocking device for elevators of this utility model can also be used for elevator car doors to prevent passengers inside the elevator car from opening the doors to save themselves when the car is not level with the floor, thereby avoiding the danger of falling into the shaft and further improving the safety of the elevator.

[0056] For ease of interpretation and precise definition of the appended claims, the terms “upper,” “lower,” “inner,” “outer,” “above,” “below,” “left,” “right,” “left side,” “right side,” “left-side,” and “right-side” are used to describe features of exemplary embodiments with reference to the positions of these features shown in the accompanying drawings.

[0057] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and descriptive purposes. It is not intended to be exhaustive, nor to limit the invention to the precise forms disclosed; obviously, many changes and variations are possible in accordance with the foregoing teachings. The exemplary embodiments were chosen and described to explain the specific principles of the invention and its practical application, thereby enabling others skilled in the art to implement and utilize various exemplary embodiments of the invention, as well as their different alternatives and modifications. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A door-opening blocking device for elevators, characterized in that, include: At least one baffle plate is provided on the sills on both sides of the elevator and / or on the door frame near the sills; At least one bracket, corresponding to the baffle plate, is provided on the side of the elevator door; as well as A blocking bar is mounted on the bracket, and when the elevator is in a door-opening state causing the elevator door to open outward, the blocking bar can restrict the movement of the blocking bar to limit the outward opening angle of the door, so that the door-opening gap of the elevator does not exceed a predetermined distance.

2. The door-opening blocking device for elevators according to claim 1, characterized in that, The baffle plate is provided with a first baffle surface, a second baffle surface and a third baffle surface, which are connected in sequence to form a groove with an opening.

3. The door-opening blocking device for elevators according to claim 2, characterized in that, The first end of the blocking rod is mounted on the bracket, and the second end of the blocking rod extends toward the blocking plate and is inserted below the groove. When the elevator door is opened normally, the second end of the blocking rod can be moved out of the opening of the groove.

4. The door-opening blocking device for an elevator according to claim 3, characterized in that, When the elevator door is closed normally, the distance between the second end of the blocking rod and the first blocking surface is no more than 3mm. When the elevator is in a door-opening state, the second end of the blocking rod can slide upward along the first blocking surface to the top of the groove and abut against the second and third blocking surfaces. When the second end of the blocking rod abuts against the second and third blocking surfaces, the door-opening gap of the elevator door is at its maximum.

5. The door-opening blocking device for an elevator according to claim 2, characterized in that, The first blocking surface is inclined, the second blocking surface is horizontal, and the third blocking surface is vertical.

6. The door-opening blocking device for an elevator according to claim 5, characterized in that, The baffle plate includes: The first panel is installed on the sills on both sides of the elevator and / or on the door frame near the sills; and The second board is connected to a corner at the top of the first board; The first blocking surface, the second blocking surface, and the third blocking surface are disposed on the second plate.

7. The door-opening blocking device for an elevator according to claim 6, characterized in that, The support includes: The third panel is located on the side of the elevator door; and The fourth plate is vertically connected to the side of the third plate and is arranged parallel to the first plate of the blocking plate. The fourth plate is provided with mounting holes. The blocking rod is inserted into the mounting hole to be mounted on the fourth plate.

8. The door-opening blocking device for an elevator according to claim 1, characterized in that, The elevator doors are configured as two doors split in the middle; The baffles are configured as two and are positioned opposite each other on the sills on both sides of the elevator and / or on the door frames near the sills; The brackets are configured in pairs corresponding to the blocking plates, with one set on the left side of the left door of the elevator and the other set on the right side of the right door of the elevator.

9. The door-opening blocking device for an elevator according to claim 1, characterized in that, The elevator doors are the doors of the elevator landing doors and / or the doors of the elevator car.

10. An elevator, characterized in that, Includes the door-opening blocking device for elevators as described in any one of claims 1-9.

Images