A device for shielding the gap between the sill of an elevator car and the floor landing

Abstract

The utility model provides a device that shields the gap between elevator car sill and floor pedal, its structure includes left elevator door (1), right elevator door (2), car sill (3), floor pedal (4), gap shielding plate (5), moving cam (6), rack (7), rack left end guide rail (8), rack right end guide rail (9), incomplete gear (10), gap shielding plate left end support seat (11), gap shielding plate right end support seat (12), rear end gyro wheel (13), gyro wheel axle (14), front end gyro wheel (15), rack left end limit block (16), rack right end limit block (17). Left elevator door (1) switch when driving moving cam (6) left and right movement, and then drive rack (7) up and down movement, and rack drives incomplete gear (10) rotation, so that elevator door opens and gap shielding plate (5) rotates 90 DEG clockwise and shields the gap, and when elevator door closes, gap shielding plate (5) rotates 90 DEG counterclockwise and resets.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of elevators, in particular to a device capable of shielding the gap between the elevator car sill and the floor step. BACKGROUND

[0002] There is an inevitable gap (mostly 30mm) between the car sill at the bottom of the car and the floor step of the car due to the structure of the elevator itself. For small items such as keys, USB drives, mobile phones, etc., it is easy to fall into the gap, causing property loss and also posing a safety hazard to the operation of the elevator. In addition, high heels are easily caught in the gap, affecting the normal operation of the elevator and easily causing safety accidents.

[0003] Patent CN214298815U proposes an elevator device capable of shielding the gap between the elevator car sill and the floor step. The device is simple in structure, does not require additional power supply, reduces the installation of power equipment, and the parts are simple in structure and easy to process. However, the device has the following disadvantages: in order to provide a movement route for the connecting piece, a large area of cutting needs to be performed at the groove structure at both ends of the car sill, which easily causes the stiffness of the car sill to decrease, failing to meet the required stiffness requirement.

[0004] Patent CN210973497U proposes another new type of elevator gap anti-falling device. The device is convenient to use, has good connection stability, is reliable in work, simple in structure, and convenient to disassemble. However, the device needs to be installed at the elevator gap of each floor, and if the number of floors is large, a large amount of manpower and material resources are required, which does not meet the actual demand. SUMMARY

[0005] The main purpose of the present application is to overcome the shortcomings of the prior art and provide a device capable of shielding the gap between the elevator car sill and the floor step. The device can convert the linear motion of the elevator door into the rotational motion of the shielding structure, and convert the weight of the person to the floor step, which has sufficient supporting strength and saves energy.

[0006] The application adopts the following technical scheme to realize the purpose: a device for shielding the gap between the elevator car sill and the floor, which comprises a left elevator door (1), a right elevator door (2), a car sill (3), a floor pedal (4), a gap shielding plate (5), a moving cam (6), a rack (7), a left end guide rail of the rack (8), a right end guide rail of the rack (9), an incomplete gear (10), a left end support seat of the gap shielding plate (11), a right end support seat of the gap shielding plate (12), a rear roller (13), a roller shaft (14), a front roller (15), a left end limiting block of the rack (16), and a right end limiting block of the rack (17), characterized in that: the car sill (3) is fixedly connected with the bottom of the elevator car; the left elevator door (1) and the right elevator door (2) are guided by the groove structure (31) of the car sill (3) to realize the opening and closing of the doors; the moving cam (6) is fixedly connected with the left elevator door (1); the top end of the rack (7) is provided with the rear roller (13), the roller shaft (14), and the front roller (15), and the two rollers can rotate relative to the rack (7) but cannot move; the contact relationship between the moving cam (6) and the rear roller (13) and the front roller (14) is high pair contact; the rack (7) is guided to move up and down in the vertical direction through the left end guide rail of the rack (8) and the right end guide rail of the rack (9), and the left elevator door (1) drives the rack (7) to move up and down when completing the opening and closing actions; the rack (7) is always engaged with the incomplete gear (10), and the rack (7) drives the incomplete gear (10) to rotate clockwise and counterclockwise; the incomplete gear (10) is fixedly connected with the gap shielding plate (5) and moves synchronously with the gap shielding plate (5); the gap shielding plate (5) is supported by the left end support seat of the gap shielding plate (11) and the right end support seat of the gap shielding plate (12), and the left end support seat of the gap shielding plate (11) and the right end support seat of the gap shielding plate (12) are fixedly installed on the car sill (3), and the gap shielding plate (5) can rotate relative to the car sill (3) but cannot move.

[0007] Further, the car sill (3) is fixedly connected with the bottom of the elevator car, the car sill (3) comprises a groove structure (31) for guiding the movement of the elevator door and a rib structure (32) for fixing the limiting block of the rack, and the car sill (3) is fixedly connected with the left end guide rail of the rack (8), the right end guide rail of the rack (9), the left end support seat of the gap shielding plate (11), and the right end support seat of the gap shielding plate (12).

[0008] Further, the gap shielding plate (5) comprises a front end protruding structure (51), the gap shielding plate (5) is supported by the left end support seat of the gap shielding plate (11) and the right end support seat of the gap shielding plate (12), and the gap shielding plate (5) can rotate relative to the car sill (3) but cannot move.

[0009] Further, when the gap shielding plate (5) rotates to shield the gap, the front end extending structure (51) of the shielding plate can be limited with the step structure (41) of the floor step (4) and the load is transmitted to the floor step (4).

[0010] Further, the moving cam (6) comprises a first horizontal section (61), a curved section (62) and a second horizontal section (63), the moving cam (6) is fixedly connected with the left elevator door (1), the contact relationship between the moving cam (6) and the rear roller (13) and the front roller (14) is high pair contact, with the left and right movement of the moving cam (6), when the roller contacts with the first horizontal section (61) of the moving cam (6), the rack (7) is in the lower limit position; when the roller contacts with the curved section (62) of the moving cam (6), the rack (7) is in the upward or downward movement state; when the roller contacts with the second horizontal section (63) of the moving cam (6), the rack (7) is in the upper limit position.

[0011] Further, the top end of the rack (7) is provided with the rear roller (13), the roller shaft (14) and the front roller (15), the two rollers can rotate relative to the rack (7) and cannot move, the rack (7) is guided to move up and down in the vertical direction through the rack left end guide rail (8) and the rack right end guide rail (9), when the left elevator door (1) moves to the right and the moving cam (6) is separated from the roller, the rack (7) is limited by the rack left end limiting block (16) and the rack right end limiting block (17), so that the rack (7) is prevented from descending due to gravity, and the rack left end limiting block (16) and the rack right end limiting block (17) are fixedly connected with the convex rib structure (32) of the car sill (3).

[0012] Further, the rack (7) is always engaged with the incomplete gear (10), and the rack (7) drives the incomplete gear (10) to rotate clockwise and counterclockwise by 90°.

[0013] Further, the incomplete gear (10) is fixedly connected with the gap shielding plate (5) and moves synchronously, and the upward and downward movement of the rack (7) drives the gap shielding plate (5) to rotate clockwise and counterclockwise by 90°.

[0014] The beneficial effects of the present application are that the gap shielding plate (5) is driven to shield the gap between the car sill (3) and the floor step (4) when the elevator door is opened, and the gap shielding plate (5) is automatically reset when the elevator door is closed, effectively preventing the occurrence of events such as small items falling and shoe heels being stuck. Compared with the prior art, the device does not need additional power supply, reduces the installation of electrical equipment, saves energy and protects the environment, has stable and reliable transmission, and has low cost. The linear motion of the moving cam (6) is converted into the rotary motion of the gap shielding plate (5), and the shielding device can bear a large weight and is safe and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the assembly diagram of the present application.

[0016] Figure 2 is the cross-sectional view of the rack and pinion mechanism in the present application.

[0017] Figure 3 is the left side view when the elevator door is closed in the present application.

[0018] Figure 4 is the overall view from the left front side when the elevator door is closed in the present application.

[0019] Figure 5 is the structural diagram of the car sill (3) in the present application.

[0020] Figure 6 is the structural diagram of the floor step (4) in the present application.

[0021] Figure 7 is the structural diagram of the gap shield (5) in the present application.

[0022] Figure 8 is the structural diagram of the moving cam (6) in the present application.

[0023] In the figure: left elevator door (1), right elevator door (2), car sill (3), floor step (4), gap shield (5), moving cam (6), rack (7), rack left end guide rail (8), rack right end guide rail (9), incomplete gear (10), gap shield left end support seat (11), gap shield right end support seat (12), rear end roller (13), roller shaft (14), front end roller (15), rack left end limit block (16), rack right end limit block (17), groove structure (31), car sill ridge structure (32), floor step ladder structure (41), gap shield front end extension structure (51), moving cam first horizontal section (61), moving cam curved section (62), moving cam second horizontal section (63). DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0025] In the present application, the front, rear, left and right are based on standing outside the car and facing the car door, and the clockwise rotation and counterclockwise rotation are based on observing from the left side of the shield.

[0026] Referring to Figures 1 to 8 , the present application provides a device capable of blocking the gap between the elevator car sill and the floor plate. As shown in Figure 1 , Figure 2 and Figure 3 , the device comprises a left elevator door (1), a right elevator door (2), a car sill (3), a floor plate (4), a gap blocking plate (5), a moving cam (6), a rack (7), a rack left end guide rail (8), a rack right end guide rail (9), an incomplete gear (10), a gap blocking plate left end support seat (11), a gap blocking plate right end support seat (12), a rear end roller (13), a roller shaft (14), a front end roller (15), a rack left end limit block (16), a rack right end limit block (17); as shown in Figure 5 , the car sill (3) comprises a groove structure (31) and a car sill convex rib structure (32); as shown in Figure 6 , the floor plate (4) comprises a step structure (41); as shown in Figure 7 , the gap blocking plate (5) comprises a front end protruding structure (51); as shown in Figure 8 , the moving cam (6) comprises a first horizontal section (61), a curved section (62), and a second horizontal section (63).

[0027] As shown in Figure 1 , when the elevator door is opened, the left elevator door (1) drives the moving cam (6) to move left, and after a certain distance, the left end of the moving cam (6) contacts the two rollers, thereby driving the upper end of the rack (7) to enter the first horizontal section (61) inside the moving cam (6). When the two rollers contact the moving cam (6) at the first horizontal section (61), the rack (7) is in the lower limit position and does not move, and the incomplete gear (10) and the gap blocking plate (5) remain stationary. When the two rollers contact the moving cam (6) at the curved section (62), the rack (7) moves upward from the lower limit position, and the incomplete gear (10) and the gap blocking plate (5) rotate clockwise. When the two rollers just disengage from the curved section (62) of the moving cam (6) and contact the second horizontal section (63), the gap blocking plate (5) rotates to the horizontal position, thereby blocking the gap between the car sill (3) and the floor plate (4). The front end protruding structure (54) of the blocking plate can cooperate with the step structure (41) of the floor plate (4) to limit the position and can bear a large weight. When the two rollers contact the moving cam (6) at the second horizontal section (63), the rack (7) is in the upper limit position and does not move, and the incomplete gear (10) and the gap blocking plate (5) remain stationary.

[0028] As shown in Figure 4As shown, when the elevator door is closed, the left elevator door (1) drives the moving cam (6) to move right, when the two rollers contact the second horizontal section (63) of the moving cam (6), the rack (7) is in the upper limit position and is not moved, the incomplete gear (10) and the gap shielding plate (5) remain stationary; when the two rollers contact the curve section (62) of the moving cam (6), the rack (7) moves from top to bottom, the incomplete gear (10) and the gap shielding plate (5) rotate counterclockwise; when the two rollers just contact the second horizontal section (63) of the moving cam (6) after leaving the curve section (62), the gap shielding plate (5) rotates to the vertical position, returns to the initial pose, and the moving cam (6) moves right to separate from the two rollers, the rack (7) is limited by the left end limiting block (16) and the right end limiting block (17) of the rack, so that the rack (7) is prevented from descending due to gravity.

[0029] The technical progress obtained by the present application relative to the prior art is that the device does not need an additional power supply, converts the left and right movement of the elevator door into the rotary motion of the shielding structure through mechanical transmission, is stable in transmission, energy-saving and environment-friendly, low in cost, and safe and reliable.

[0030] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for shielding the gap between the sill of an elevator car and the floor landing, the device comprising: The left elevator door (1), the right elevator door (2), the car sill (3), the floor pedal (4), the gap shielding plate (5), the moving cam (6), the rack (7), the left end guide rail of the rack (8), the right end guide rail of the rack (9), the incomplete gear (10), the left end support seat of the gap shielding plate (11), the right end support seat of the gap shielding plate (12), the rear end roller (13), the roller shaft (14), the front end roller (15), the left end limiting block of the rack (16), the right end limiting block of the rack (17), characterized in that: the car sill (3) is fixedly connected with the bottom of the elevator car; the left elevator door (1) and the right elevator door (2) are guided by the groove structure (31) of the car sill (3) to realize the opening and closing of the doors; the moving cam (6) is fixedly connected with the left elevator door (1); the top end of the rack (7) is provided with the rear end roller (13), the roller shaft (14) and the front end roller (15), and the two rollers can rotate relative to the rack (7) but cannot move; the contact relationship between the moving cam (6) and the rear end roller (13) and the front end roller (15) is high pair contact; the rack (7) is guided to move up and down in the vertical direction through the left end guide rail of the rack (8) and the right end guide rail of the rack (9), and the left elevator door (1) drives the rack (7) to move up and down when completing the opening and closing actions; the rack (7) is always engaged with the incomplete gear (10), and the rack (7) drives the incomplete gear (10) to rotate clockwise and counterclockwise; the incomplete gear (10) is fixedly connected with the gap shielding plate (5) and moves synchronously; the gap shielding plate (5) is supported by the left end support seat of the gap shielding plate (11) and the right end support seat of the gap shielding plate (12), and the left end support seat of the gap shielding plate (11) and the right end support seat of the gap shielding plate (12) are fixedly installed on the car sill (3), and the gap shielding plate (5) can rotate relative to the car sill (3) but cannot move; the moving cam (6) comprises a first horizontal section (61), a curve section (62) and a second horizontal section (63), the roller contacts the moving cam at different positions with the left and right movement of the moving cam (6); when the roller contacts the first horizontal section (61) of the moving cam (6), the rack (7) is at the lower limit position; when the roller contacts the curve section (62) of the moving cam (6), the rack (7) is in the upward or downward movement state; when the roller contacts the second horizontal section (63) of the moving cam (6), the rack (7) is at the upper limit position.

2. A device for shielding the gap between the sill of an elevator car and the floor slab according to claim 1, characterized in that: The car sill (3) is fixedly connected with the bottom of the elevator car, and the car sill (3) comprises a groove structure (31) for guiding the movement of the elevator door and a rib structure (32) for fixing the limiting block of the rack, and the car sill (3) is fixedly connected with the left end guide rail of the rack (8), the right end guide rail of the rack (9), the left end support seat of the gap shielding plate (11) and the right end support seat of the gap shielding plate (12).

3. A device for shielding the gap between the sill of an elevator car and the floor slab according to claim 1, characterized in that: The gap shielding plate (5) comprises a front end protruding structure (51), and is supported by a left end support (11) and a right end support (12) and can rotate relative to the landing sill (3).

4. A device for shielding the gap between the sill of an elevator car and the floor slab according to claim 1, characterized in that: When the gap shielding plate (5) rotates to shield the gap, the front end protruding structure (51) can be limited by the step structure (41) of the landing sill (4) and transfer the load to the landing sill (4).

5. A device for shielding the gap between the sill of an elevator car and the floor slab according to claim 1, characterized in that: The top end of the rack (7) is provided with a rear roller (13), a roller shaft (14) and a front roller (15), and the two rollers can rotate relative to the rack (7) and cannot move. The rack (7) is guided to move up and down in the vertical direction through a left end guide rail (8) and a right end guide rail (9). When the left elevator door (1) moves to the right and the moving cam (6) is separated from the roller, the rack (7) is limited by a left end limiting block (16) and a right end limiting block (17) to prevent the rack (7) from descending due to gravity. The left end limiting block (16) and the right end limiting block (17) are fixedly connected with the convex rib structure (32) of the landing sill (3).

6. A device for shielding the gap between the sill of an elevator car and the floor slab according to claim 1, characterized in that: The rack (7) and the incomplete gear (10) are always engaged, and the rack (7) drives the incomplete gear (10) to rotate clockwise and counterclockwise by 90°.

7. A device for shielding the gap between the sill of an elevator car and the floor slab according to claim 1, characterized in that: The incomplete gear (10) is fixedly connected with the gap shielding plate (5) and moves synchronously, and the up and down movement of the rack (7) drives the gap shielding plate (5) to rotate clockwise and counterclockwise by 90°.

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