elevator car and landing side clearance protection device

Abstract

This invention discloses a gap protection device between the elevator car and the landing side. Two fixed sheet metals are installed at the lower part of each of the left and right car doors. The lower horizontal part of the fixed sheet metal extends rearward into a U-shaped groove in the upper part of the car sill. The two ends of a connecting rod are rotatably connected to the lower horizontal part of the fixed sheet metal and the movable groove of the protective plate, respectively. A guide bolt is fixedly installed on the upper side of the B-side protective plate near end A. The B-side protective plate is located below the A-side protective plate, and the guide bolt extends into the left and right guide grooves on the lower side of the A-side protective plate. This gap protection device between the elevator car and the landing side is directly driven by the car door, which drives the fixed sheet metals, connecting rod, and protective plate. Through a simple mechanical linkage between the connecting rod and the protective plate, the gap between the car sill and the landing side sill is reduced when the car door is open and the protective device retracts into the car sill after the car door is closed. The structure is simple and reliable, easy to install and maintain, has low cost, and high transmission efficiency.

Description

Technical Field

[0001] This invention relates to elevator technology, and in particular to a protective device for the gap between the elevator car and the landing. Background Technology

[0002] Elevators, as a type of special equipment, are widely used to transport passengers and goods between different floors of buildings, greatly facilitating people's lives. Because there is relative movement between the elevator car and the floors, a certain gap is inevitably left between the car and the landing.

[0003] my country's "Safety Code for Elevator Manufacturing and Installation" clearly stipulates that the horizontal distance between the car side sill and the landing side sill should not exceed 35mm. Currently, most elevators on the market have a horizontal distance of around 30mm between the car side sill and the landing side sill. Although this meets the code's requirements, this gap is still too large. When passengers enter or exit the elevator car, their personal belongings, such as keys and mobile phones, may still fall into the shaft through this gap. This gap not only causes unnecessary inconvenience for passengers but also poses a potential safety hazard to the elevator's operation.

[0004] Several solutions exist for reducing the gap between the car-side sill and the landing-side sill. For example, Chinese patent application (201810846695.3) uses an electromagnet, a filler block, and a compression spring to fill the gap. This solution involves electrical components, requiring waterproofing and insulation of the device. A circuit malfunction could prevent the filler block from retracting. Another example is Chinese patent application (201910338375.1), which uses gears and baffles to fill the gap. This solution is structurally complex and difficult to install and maintain. Yet another example is Chinese patent application (201721752655.X), which uses a drum and a moving belt to fill the gap. While this solution solves the gap-filling problem, the device does not retract to the car side after restoration, potentially causing a collision with the landing side during elevator operation. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a gap protection device between the elevator car and the landing side. When the car door is open, it can reduce the gap between the car sill and the landing side sill when the elevator is level. After the car door is closed, the protection device retracts into the car sill and does not affect the operation of the elevator. The structure is simple and reliable, easy to install and maintain, has low implementation cost, and high transmission efficiency.

[0006] To solve the above-mentioned technical problems, the present invention provides an elevator car and landing side gap protection device, which includes four fixed sheet metal parts, an A-side protection plate 5 and a B-side protection plate 6.

[0007] The upper part of the car sill 10 has a horizontal U-shaped groove with the opening facing forward;

[0008] The fixed sheet metal is divided into a rear vertical part, an upper horizontal part, a front vertical part and a lower horizontal part connected in sequence. The upper horizontal part bends vertically forward from the lower end of the rear vertical part, the front vertical part bends vertically downward from the front end of the upper horizontal part, and the lower horizontal part bends vertically backward from the lower end of the front vertical part.

[0009] The rear vertical parts of the first fixed sheet metal 21 and the second fixed sheet metal 22 are fixed to the front side of the car door 1a on side A near end A.

[0010] The rear vertical parts of the third fixed sheet metal 23 and the fourth fixed sheet metal 24 are fixed to the front side of the car door 1b near the B end.

[0011] The upper horizontal part of each fixed sheet metal is located above the car sill 10, the front vertical part is located in front of the upper part of the car sill 10, and the lower horizontal part extends backward into the U-shaped groove of the upper part of the car sill 10.

[0012] Two movable grooves 9 are provided on the rear side of the protective plate 5 near end A;

[0013] Two movable grooves 9 are provided on the rear side of the B-side protective plate 6 near the B end;

[0014] The left and right lengths of the A-side protective plate 5 and the B-side protective plate 6 are both greater than the left and right widths of one side of the car door, and less than the sum of the widths of the two side car doors.

[0015] The lower horizontal rear ends of the first fixed sheet metal 21 and the second fixed sheet metal 22 are respectively connected to the two movable grooves 9 of the A-side protective plate 5 through connecting rods 3. One end of the connecting rod 3 is hinged to the lower side of the lower horizontal rear end through a hinge bolt 4, and the other end is respectively inserted into the corresponding movable grooves 9 of the A-side protective plate 5 and pivotally connected to the A end of the corresponding movable grooves 9.

[0016] The lower horizontal rear ends of the third fixed sheet metal 23 and the fourth fixed sheet metal 24 are respectively connected to the two movable grooves 9 of the B-side protective plate 6 via connecting rods 3. One end of the connecting rod 3 is hinged to the lower side of the lower horizontal rear end via hinge bolts 4, and the other end is respectively inserted into the corresponding movable grooves 9 of the B-side protective plate 6 and pivotally connected to the B end of the corresponding movable grooves 9.

[0017] The rear ends of the A-side protection plate 5 and the B-side protection plate 6 are both located in the transverse U-shaped groove of the car sill 10;

[0018] A left and right guide grooves 7 are opened on the lower side of the protective plate 5 on side A;

[0019] A guide bolt 8 is fixedly installed on the upper side of the B-side protective plate 6 near end A;

[0020] B-side protective plate 6 is located below A-side protective plate 5, and the guide bolt 8 is inserted into the left and right guide grooves 7 on the lower side of A-side protective plate 5;

[0021] A is left, B is right; or,

[0022] A is right, B is left.

[0023] Preferably, the depth of the movable groove 9 of the A-side protective plate 5 gradually decreases from end A to end B.

[0024] The movable groove 9 of the B-side protective plate 6 has a depth that gradually decreases from end B to end A.

[0025] Preferably, the other end of the connecting rod 3 is pivotally connected to the movable groove 9 via a rivet.

[0026] Preferably, a hole is made at the upper end of the rear vertical part of the fixed sheet metal for fixing to the car door.

[0027] Preferably, a hole is made at the rear end of the lower horizontal part of the fixed sheet metal for hinged connection of one end of the connecting rod 3 via the hinge bolt 4.

[0028] Preferably, the length of the connecting rod 3 is 0.8 to 1.1 times the front-to-back depth of the transverse U-shaped groove on the upper part of the car sill 10.

[0029] Preferably, the length of the connecting rod 3 is between 20mm and 40mm.

[0030] Preferably, the front and rear widths of the A-side protective plate 5 and the B-side protective plate 6 are between 30mm and 40mm.

[0031] The elevator car-to-land clearance protection device of the present invention is driven directly by the car door to fix sheet metal, connecting rods and protective plates. Through simple mechanical linkage between the connecting rods and the protective plates, the clearance between the car sill and the land sill is reduced when the car door is open, preventing passengers' belongings from falling into the shaft when entering or exiting the car. After the car door is closed, the protection device retracts into the car sill without affecting the operation of the elevator. The structure is simple and reliable, easy to install and maintain, has low implementation cost, high transmission efficiency and is more energy-saving. Attached Figure Description

[0032] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is an embodiment of the elevator car and landing side gap protection device of the present invention, with the car door closed;

[0034] Figure 2This is an embodiment of the elevator car and landing side gap protection device of the present invention, with the car door open;

[0035] Figure 3 This is a right view of an embodiment of the elevator car and landing side gap protection device of the present invention, with the car door closed;

[0036] Figure 4 This is a right view of an embodiment of the elevator car and landing side gap protection device of the present invention, with the car door open.

[0037] Figure 5 This is a schematic diagram of the left side of the elevator car door in the closed state of an embodiment of the elevator car and landing side gap protection device of the present invention;

[0038] Figure 6 yes Figure 5 Detailed image of circle H;

[0039] Figure 7 This is a schematic diagram of the left side of the elevator car door in the open state of an embodiment of the elevator car and landing side gap protection device of the present invention;

[0040] Figure 8 yes Figure 7 Detailed image of circle F;

[0041] Figure 9 This is a schematic diagram of the front side of the elevator car and landing side gap protection device according to an embodiment of the present invention;

[0042] Figure 10 This is a schematic diagram of the front side of the left protective plate of an embodiment of the elevator car and landing side gap protection device of the present invention with the car door open;

[0043] Figure 11 This is a schematic diagram of the front side of the right-side protective plate of an embodiment of the elevator car and landing side gap protection device of the present invention with the car door open.

[0044] Explanation of reference numerals in the attached figures:

[0045] 5: Side A protection plate; 6: Side B protection plate; 10: Car sill; 21: First fixed sheet metal; 22: Second fixed sheet metal; 23: Third fixed sheet metal; 24: Fourth fixed sheet metal; 1a: Side A car door; 1b: Side B car door; 9: Movable groove; 3: Connecting rod; 4: Hinge bolt; 7: Guide groove; 8: Guide bolt; 11: Landing side sill. Detailed Implementation

[0046] The technical solutions of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0047] Example 1

[0048] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the elevator car and landing side gap protection device includes four fixed sheet metal parts, A-side protection plate 5 and B-side protection plate 6;

[0049] The upper part of the car sill 10 has a horizontal U-shaped groove with the opening facing forward;

[0050] The fixed sheet metal is divided into a rear vertical part, an upper horizontal part, a front vertical part and a lower horizontal part connected in sequence. The upper horizontal part bends vertically forward from the lower end of the rear vertical part, the front vertical part bends vertically downward from the front end of the upper horizontal part, and the lower horizontal part bends vertically backward from the lower end of the front vertical part.

[0051] The rear vertical parts of the first fixed sheet metal 21 and the second fixed sheet metal 22 are fixed to the front side of the car door 1a on side A near end A.

[0052] The rear vertical parts of the third fixed sheet metal 23 and the fourth fixed sheet metal 24 are fixed to the front side of the car door 1b near the B end.

[0053] The upper horizontal part of each fixed sheet metal is located above the car sill 10, the front vertical part is located in front of the upper part of the car sill 10, and the lower horizontal part extends backward into the U-shaped groove of the upper part of the car sill 10.

[0054] Two movable grooves 9 are provided on the rear side of the protective plate 5 near end A;

[0055] Two movable grooves 9 are provided on the rear side of the B-side protective plate 6 near the B end;

[0056] The left and right lengths of the A-side protective plate 5 and the B-side protective plate 6 are both greater than the left and right widths of one side of the car door, and less than the sum of the widths of the two side car doors.

[0057] The lower horizontal rear ends of the first fixed sheet metal 21 and the second fixed sheet metal 22 are respectively connected to the two movable grooves 9 of the A-side protective plate 5 through connecting rods 3. One end of the connecting rod 3 is hinged to the lower side of the lower horizontal rear end through a hinge bolt 4, and the other end is respectively inserted into the corresponding movable grooves 9 of the A-side protective plate 5 and pivotally connected to the A end of the corresponding movable grooves 9.

[0058] The lower horizontal rear ends of the third fixed sheet metal 23 and the fourth fixed sheet metal 24 are respectively connected to the two movable grooves 9 of the B-side protective plate 6 via connecting rods 3. One end of the connecting rod 3 is hinged to the lower side of the lower horizontal rear end via hinge bolts 4, and the other end is respectively inserted into the corresponding movable grooves 9 of the B-side protective plate 6 and pivotally connected to the B end of the corresponding movable grooves 9.

[0059] The rear ends of the A-side protection plate 5 and the B-side protection plate 6 are both located in the transverse U-shaped groove of the car sill 10;

[0060] A left and right guide grooves 7 are opened on the lower side of the protective plate 5 on side A;

[0061] A guide bolt 8 is fixedly installed on the upper side of the B-side protective plate 6 near end A;

[0062] B-side protective plate 6 is located below A-side protective plate 5, and the guide bolt 8 is inserted into the left and right guide grooves 7 on the lower side of A-side protective plate 5;

[0063] A is left, B is right; or,

[0064] A is right, B is left.

[0065] In the elevator car and landing side gap protection device of Embodiment 1, two fixed sheet metals are installed at the lower part of each of the left and right car doors. The lower horizontal part of the fixed sheet metal extends backward into the U-shaped groove on the upper part of the car sill 10. The two ends of the connecting rod 3 are rotatably connected to the lower horizontal part of the fixed sheet metal and the movable groove 9 of the protective plate, respectively. A guide bolt 8 is fixedly installed on the upper side near the A end of the B-side protective plate 6. The B-side protective plate 6 is located below the A-side protective plate 5, and the guide bolt 8 extends into the left and right guide grooves 7 on the lower side of the A-side protective plate 5. Figure 1 , Figure 3 , Figure 5 , Figure 6 As shown, when the elevator car door is closed, the A-side protection plate 5 and the B-side protection plate 6 overlap and are contained in the U-shaped groove on the upper part of the car sill 10. The connecting rod 3 is engaged with the movable groove 9 on the rear side of the protection plate. The guide bolt 8 near the A end of the B-side protection plate 6 is located at the A end of the left and right guide grooves 7 on the lower side of the A-side protection plate 5. When the car door opens to sides A and B, the car door moves the fixed sheet metal, which in turn moves the connecting rod. The connecting rod then moves the two protective plates to the left and right sides respectively. When the guide bolt 8 on the B-side protective plate 6 moves to the B end of the left and right guide grooves 7 on the lower side of the A-side protective plate 5, the two protective plates can no longer slide relative to each other. At this time, the car door continues to move to both sides, pushing the connecting rod 3 to rotate away from the protective plates, pushing the two protective plates forward from the U-shaped groove on the upper part of the car sill 10, and moving them to the lower part of the landing side sill 11 in front of the car sill 10, thereby filling the gap between the elevator car and the landing side. At this time, the connecting rod 3 flips up from the movable groove 9 on the rear side of the protective plate, as if... Figure 2 , Figure 4 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown. When the car door closes from the open position, the car door moves the fixed sheet metal, which in turn moves the connecting rod 3. The connecting rod 3 causes the two protective plates to slide towards each other. When the guide bolt 8 on the B-side protective plate 6 moves to the A end of the left and right guide grooves 7 on the lower side of the A-side protective plate 5, the two protective plates can no longer slide relative to each other. At this time, the car door continues to close, causing the connecting rod 3 to rotate and retract the two protective plates into the U-shaped groove on the upper part of the car sill 10, without affecting the upward and downward movement of the elevator car. The movable groove 9 on the rear side of the protective plate restricts the rotation range of the connecting rod 3 when the car door is open and closed, thus ensuring that the positions of the two protective plates are fixed in the open and closed states of the car door, and will not affect the normal operation of the elevator.

[0066] The elevator car-to-land clearance protection device in Embodiment 1 is driven directly by the car door to fix the sheet metal, connecting rod, and protective plate. Through a simple mechanical linkage between the connecting rod and the protective plate, the clearance between the car sill and the land sill is reduced when the car door is open, preventing passengers' belongings from falling into the shaft when entering or exiting the car. After the car door is closed, the protection device retracts into the car sill without affecting the operation of the elevator. The structure is simple and reliable, easy to install and maintain, has low implementation cost, high transmission efficiency, and is more energy-saving.

[0067] Example 2

[0068] Based on the elevator car and landing side gap protection device of Embodiment 1, such as Figure 6 , Figure 8 As shown, the depth of the movable groove 9 of the protective plate 5 on side A gradually decreases from end A to end B.

[0069] The movable groove 9 of the B-side protective plate 6 has a depth that gradually decreases from end B to end A.

[0070] Preferably, the other end of the connecting rod 3 is pivotally connected to the movable groove 9 via a rivet.

[0071] Preferably, a hole is made at the upper end of the rear vertical part of the fixed sheet metal for fixing to the car door.

[0072] Preferably, a hole is made at the rear end of the lower horizontal part of the fixed sheet metal for hinged connection of one end of the connecting rod 3 via the hinge bolt 4.

[0073] Preferably, the length of the connecting rod 3 is 0.8 to 1.1 times the front-to-back depth of the transverse U-shaped groove on the upper part of the car sill 10.

[0074] Preferably, the length of the connecting rod 3 is between 20mm and 40mm.

[0075] Preferably, the front and rear widths of the A-side protective plate 5 and the B-side protective plate 6 are between 30mm and 40mm.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A protective device for the gap between the elevator car and the landing side, characterized in that, It includes four fixed sheet metal parts, a protective plate on side A (5) and a protective plate on side B (6); The upper part of the car sill (10) is provided with a horizontal U-shaped groove with the opening facing forward; The fixed sheet metal is divided into a rear vertical part, an upper horizontal part, a front vertical part and a lower horizontal part connected in sequence. The upper horizontal part bends vertically forward from the lower end of the rear vertical part, the front vertical part bends vertically downward from the front end of the upper horizontal part, and the lower horizontal part bends vertically backward from the lower end of the front vertical part. The rear vertical parts of the first fixed sheet metal (21) and the second fixed sheet metal (22) are fixed to the front side of the car door (1a) near the A end; The rear vertical parts of the third fixed sheet metal (23) and the fourth fixed sheet metal (24) are fixed to the front side of the car door (1b) near the B end. The upper horizontal part of each fixed sheet metal is located above the car sill (10), the front vertical part is located in front of the upper part of the car sill (10), and the lower horizontal part extends backward into the U-shaped groove at the upper part of the car sill (10); Two movable grooves (9) are provided on the rear side of the protective plate (5) near end A. Two movable grooves (9) are provided on the rear side of the B-side protective plate (6) near the B end. The left and right lengths of the A-side protective plate (5) and the B-side protective plate (6) are both greater than the left and right widths of one side of the car door and less than the sum of the widths of the two side car doors; The lower horizontal rear ends of the first fixed sheet metal (21) and the second fixed sheet metal (22) are respectively connected to the two movable grooves (9) of the A-side protective plate (5) by connecting rods (3). One end of the connecting rod (3) is hinged to the lower side of the lower horizontal rear end by hinge bolts (4), and the other end is respectively inserted into the corresponding movable grooves (9) of the A-side protective plate (5) and pivoted at the A end of the corresponding movable grooves (9). The lower horizontal rear ends of the third fixed sheet metal (23) and the fourth fixed sheet metal (24) are respectively connected to the two movable grooves (9) of the B-side protective plate (6) by connecting rods (3). One end of the connecting rod (3) is hinged to the lower side of the lower horizontal rear end by hinge bolts (4), and the other end is respectively inserted into the corresponding movable grooves (9) of the B-side protective plate (6) and pivoted at the B end of the corresponding movable grooves (9). The rear ends of the A-side protection plate (5) and the B-side protection plate (6) are both located in the transverse U-shaped groove of the car sill (10); A left and right guide grooves (7) are opened on the lower side of the protective plate (5) on side A; A guide bolt (8) is fixedly installed on the upper side of the B-side protective plate (6) near the A end. The B-side protective plate (6) is located below the A-side protective plate (5), and the guide bolt (8) is inserted into the left and right guide grooves (7) on the lower side of the A-side protective plate (5); A is left, B is right; or, A is right, B is left; The depth of the movable groove (9) of the protective plate (5) on side A gradually decreases from end A to end B. The movable groove (9) of the B-side protective plate (6) gradually becomes shallower from the B end to the A end; The other end of the connecting rod (3) is pivotally connected to the movable groove (9) by a rivet.

2. The elevator car and landing side gap protection device according to claim 1, characterized in that, A hole is made at the upper end of the rear vertical part of the fixed sheet metal for fixing to the car door.

3. The elevator car and landing side gap protection device according to claim 1, characterized in that, A hole is opened at the rear end of the lower horizontal part of the fixed sheet metal for hinged connection of one end of the connecting rod (3) by hinge bolt (4).

4. The elevator car and landing side gap protection device according to claim 1, characterized in that, The length of the connecting rod (3) is 0.8 to 1.1 times the front and rear depth of the transverse U-shaped groove at the top of the car sill (10).

5. The elevator car and landing side gap protection device according to claim 1, characterized in that, The length of the connecting rod (3) is between 20mm and 40mm.

6. The elevator car and landing side gap protection device according to claim 1, characterized in that, The front and rear widths of the A-side protective plate (5) and the B-side protective plate (6) are between 30mm and 40mm.

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