A door system that prevents accidental opening

Abstract

The invention discloses a door system that prevents accidental opening, including a hall door machine, the hall door machine including a hall door machine bottom plate, a hall door hanging plate, a door ball driven by a door knife connected to the hall door hanging plate, the door ball is connected to the hall door hanging plate through a connecting rod, the connecting rod includes a blocking portion located between the door ball and the hall door hanging plate; and also includes a blocking device, the blocking device includes a base, a blocking rod vertically slidably arranged on the base, and a spring providing an upward elastic force for the blocking rod, the blocking rod includes a blocking portion and a sliding portion, the blocking portion is located on the moving path of the blocked portion, the sliding portion and the blocking portion are connected to the surface of the blocking portion away from the hall door machine bottom plate, and the top of the sliding portion is symmetrically provided with a force-bearing inclined surface 1 and a force-bearing inclined surface 2; the door knife is laterally provided with a giving way to the blocking portion, and two force-applying portions are symmetrically connected to the left and right sides of the door knife. According to the invention, when the hall door is accidentally opened, it can only be opened to a limited width, and the safety performance of the hall door can be greatly increased.

Description

Technical Field

[0001] The invention relates to the field of vertical elevators, in particular to a door system that prevents accidental opening. Background Art

[0002] When the hall door is opened, the door ball is driven by the car door knife, thus making the hall door move. The hall door is equipped with a door interlock mechanism. When the hall door is opened, the door interlock is in the open state, and when the hall door is closed, the door interlock is in the locked state to prevent the hall door from being opened.

[0003] At present, when the hall door is accidentally opened {for example, the door interlock fails due to prying behavior, causing the hall door to be accidentally opened}, the hall door will open all the way, posing a great safety hazard. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a door system that prevents accidental opening. When the hall door is accidentally opened, it can only be opened to a very limited width, and the safety performance of the hall door can be greatly increased.

[0005] An anti-accidental-opening door system comprises a hall door machine, the hall door machine comprises a hall door machine bottom plate, a hall door hanging plate movably arranged on the hall door machine bottom plate, a door ball driven by a door knife is connected to the hall door hanging plate, the door ball is connected to the hall door hanging plate through a connecting rod, and the connecting rod comprises a blocking portion located between the door ball and the hall door hanging plate;

[0006] It also includes a blocking device, which is staggered with the hall door hanging plate in the front-rear direction perpendicular to the hall door machine bottom plate;

[0007] The blocking device comprises a base, a blocking rod vertically slidably arranged on the base, and a spring providing an upward elastic force to the blocking rod, the blocking rod comprises a blocking portion and a sliding portion, the blocking portion is located on the moving path of the blocked portion, the sliding portion is connected to a surface of the blocking portion that is away from the bottom plate of the hall door machine, and the top of the sliding portion is symmetrically provided with a first force-bearing inclined surface and a second force-bearing inclined surface;

[0008] The door knife has a side opening for making way for the blocking part, and two force-applying parts are symmetrically connected to the left and right sides of the door knife. The two force-applying parts are symmetrically provided with a force-applying inclined plane 1 and a force-applying inclined plane 2, and the bottoms of the force-applying inclined plane 1 and the force-applying inclined plane 2 are connected by a transition part.

[0009] Preferably, the length of the blocking portion is 5-10 mm.

[0010] Preferably, it also includes a mounting strip spanning across the hall door hanging plate, and the base is mounted on the mounting strip.

[0011] Preferably, the mounting bar has a fold extending along the length direction of the mounting bar.

[0012] Preferably, in the front - rear direction perpendicular to the bottom plate of the landing door machine, the mounting strip and the blocking device do not protrude beyond the back surface of the landing door.

[0013] Preferably, the connecting rod and the landing door hanging plate are detachably connected.

[0014] In summary, the present invention has the following beneficial effects:

[0015] 1: In the present invention, when the landing door is accidentally opened, only a very limited width can be opened, and the safety performance of the landing door is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a matching diagram of the landing door machine and the door knife;

[0017] Figure 2 It is a connection schematic diagram of the door ball and the landing door hanging plate;

[0018] Figure 3 It is an installation schematic diagram of the blocking device;

[0019] Figure 4 It is a schematic structural diagram of the door knife;

[0020] Figure 5 It is a matching diagram of the door knife and the door ball;

[0021] Figure 6 It is a structural schematic diagram of the blocking rod. DETAILED DESCRIPTION OF THE INVENTION

[0022] The present invention will be further described below with reference to the drawings through specific embodiments.

[0023] Embodiment 1: As Figure 1 shown, an anti - accidental - opening door system includes a landing door machine 1. The landing door machine 1 includes a landing door machine bottom plate 11 and a landing door hanging plate 12 movably arranged on the landing door machine bottom plate 11. A guide rail part 12 - 1 for installing the landing door hanging plate 12 is arranged on the landing door machine bottom plate 11. There are two guide rail parts 12 - 1, which are distributed in parallel up and down. A door ball 13 driven by a door knife 21 is connected to the landing door hanging plate 12, and the door ball 13 is connected to the landing door hanging plate 12 through a connecting rod 14.

[0024] Different from the prior art, the connecting rod 14 includes a blocked part 141 located between the door ball 13 and the landing door hanging plate 12 and a door ball connecting part 142 connected to the blocked part 141. The door ball connecting part 142 is used for installing the door ball 13. The length of the blocked part 141 is 5 - 10 mm, that is, the distance between the door ball 13 and the landing door hanging plate 12 is 5 - 10 mm.

[0025] It also includes a blocking device 15, which is staggered with the hall door hanging plate 12 in the front-rear direction perpendicular to the hall door machine bottom plate 11, so as to ensure that the hall door hanging plate 12 will not interfere with the blocking device 15 when moving;

[0026] The blocking device 15 includes a base 151, a blocking rod 152 vertically slidably arranged on the base 151, and a spring 153, the spring 153 provides an upward elastic force for the blocking rod 152, the blocking rod 152 includes a blocking portion 1521 and a sliding portion 1522, the blocking portion 1521 is located on the moving path of the blocked portion 141, the sliding portion 1522 is connected to the surface of the blocking portion 1521 away from the bottom plate 11 of the hall door machine, and the top of the sliding portion 1522 is symmetrically provided with a force-bearing inclined surface 1523 and a force-bearing inclined surface 2 1524;

[0027] The door knife 21 is provided with a lateral opening 2-0 for making way for the blocking portion 1521, and two force-applying portions 22 are symmetrically connected to the left and right sides of the door knife 21, and force-applying slopes 1 231 and 232 are symmetrically arranged on the two force-applying portions 22, and the bottoms of force-applying slopes 1 231 and 232 are connected by a transition portion 24, and the thickness of the transition portion 24 is less than that of the door knife 21, so as to ensure that the transition portion 24 will not completely block the entrance at the bottom of the door knife 21, thereby ensuring that the door ball 13 is allowed to enter.

[0028] When the elevator door opens normally, the door knife 21 drives the door ball 13 to move horizontally, and the force-applying inclined plane 231 first presses on the force-bearing inclined plane 1523. As the door knife 21 continues to move, the force-bearing inclined plane 1523 moves downward along the force-applying inclined plane 231, so that the blocking rod 152 overcomes the elastic force of the spring 153 and moves downward. When the force-bearing inclined plane 1523 moves to the transition portion 24, the blocking portion 1521 is located below the blocked portion 141. As the door knife 21 continues to move, the intersection of the force-bearing inclined plane 1523 and the force-bearing inclined plane 2 1524 moves on the transition portion 24, and the blocking portion 1521 gradually passes through the clearance opening 2-0 on the door knife 21. After the blocking portion 1521 passes through the clearance opening 2-0, the door can be opened normally. When closing the door, the door knife 21 drives the door ball 13 back, and the force-applying slope 232 first presses on the force-bearing slope 1524. As the door knife 21 continues to move, the force-bearing slope 1524 moves downward along the force-applying slope 232, so that the blocking rod 152 overcomes the elastic force of the spring 153 and moves downward. When the force-bearing slope 1524 moves to the transition portion 24, the blocking portion 1521 is located below the blocking portion 141. As the door knife 21 continues to move, the intersection of the force-bearing slope 1524 and the force-bearing slope 1 1523 moves on the transition portion 24, and the blocking portion 1521 gradually passes through the yielding opening 2-0 on the door knife 21. After the blocking portion 1521 passes through the yielding opening 2-0, the door can be closed normally.

[0029] When the landing door is accidentally opened, for example, pried open, the blocking part 141 is blocked by the blocking part 1521. Therefore, the landing door cannot be fully opened and can only be opened to a very limited width, which greatly increases the safety performance.

[0030] To reasonably install the blocking device 15 and achieve the effect that the landing door hanging plate 12 mentioned above does not interfere with the blocking device 15 when moving, an installation strip 16 spanning the landing door hanging plate 12 is provided. Both ends of the installation strip 16 are connected to the landing door machine bottom plate 11 through fixing seats, and the base 151 and the spring 153 are both installed on the installation strip 16. In this way, it is ensured that during the door opening process, the base 151 and the landing door hanging plate 12 and other structures will not interfere with each other. The installation strip 16 has a crease extending along the length direction of the installation strip 16, which ensures the structural strength of the installation strip 16.

[0031] In the front-back direction perpendicular to the landing door machine bottom plate (11), the installation strip (16) and the blocking device (15) do not protrude beyond the back surface of the landing door (3), and the back surface refers to the surface facing the car door, ensuring the structural compactness of the installation strip (16) and the blocking device (15).

[0032] Since the connecting rod 14 itself is not a very thick component and is prone to deformation during the impact, once deformed, the position of the door ball 13 will change, resulting in the inability to cooperate with the door knife 21, thus causing the door opening and closing to fail. For this reason, the connecting rod 14 and the landing door hanging plate 12 are detachably connected, which is convenient for replacing the deformed connecting rod 14. The connecting rod 14 further includes a threaded connection section 143, and a nut 12-1 is provided on the back surface of the landing door hanging plate 12. The threaded connection section 143 passes through the landing door hanging plate 12 and is connected to the nut 12-1. Using the threaded connection section 143 and the nut 12-1 for connection is convenient for disassembly and assembly.

[0033] The above-mentioned embodiments only describe the preferred embodiments of the present invention and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by those of ordinary skill in the art to the technical solution of the present invention should fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the claims.

Claims

1. An anti-accidental-opening door system, comprising a landing door machine (1). The landing door machine (1) includes a landing door machine bottom plate (11) and a landing door hanging plate (12) movably arranged on the landing door machine bottom plate (11). A door ball (13) driven by a door knife (21) is connected to the landing door hanging plate (12). The door ball (13) is connected to the landing door hanging plate (12) through a connecting rod (14). It is characterized in that, The connecting rod (14) includes a blocking portion (141) located between the gate ball (13) and the landing door hanging plate (12); It further includes a blocking device (15), and the blocking device (15) is arranged offset in the front-back direction perpendicular to the landing door machine base plate (11) from the landing door hanging plate (12); The blocking device (15) includes a base (151), a blocking rod (152) vertically slidably arranged on the base (151), and a spring (153) providing upward elastic force for the blocking rod (152). The blocking rod (152) includes a blocking portion (1521) and a sliding portion (1522). The blocking portion (1521) is located on the moving path of the blocking portion (141). The surface of the sliding portion (1522) and the blocking portion (1521) facing away from the landing door machine base plate (11) are connected. Force-receiving inclined surface one (1523) and force-receiving inclined surface two (1524) are symmetrically arranged at the top of the sliding portion (1522); The door knife (21) is laterally provided with a relief opening (2-0) for the blocking portion (1521). Two force-applying portions (22) are symmetrically connected to the left and right sides of the door knife (21). Force-applying inclined surface one (231) and force-applying inclined surface two (232) are symmetrically arranged on the two force-applying portions (22). The bottoms of the force-applying inclined surface one (231) and the force-applying inclined surface two (232) are connected through a transition portion (24).

2. The anti-accidental-opening door system according to claim 1, wherein The length of the blocking portion (141) is 5-10 mm.

3. The anti-accidental-opening door system according to claim 1, characterized in that It further includes a mounting strip (16) spanning the landing door hanging plate (12), and the base (151) is mounted on the mounting strip (16).

4. The anti-accidental-opening door system according to claim 3, characterized in that, The mounting strip (16) has a crease extending along the length direction of the mounting strip (16).

5. The anti-accidental-opening door system according to claim 3, characterized in that, In the front-back direction perpendicular to the landing door machine base plate (11), the mounting strip (16) and the blocking device (15) do not protrude beyond the back surface of the landing door (3).

6. The anti-accidental opening door system according to claim 1, wherein The connection between the connecting rod (14) and the landing door hanging plate (12) is detachable.

7. The anti-accidental-opening door system according to claim 6, wherein, The connecting rod (14) further includes a threaded connection section (143). A nut (12-1) is arranged on the back surface of the landing door hanging plate (12). The threaded connection section (143) passes through the landing door hanging plate (12) and is connected to the nut (12-1).

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