Elevator sill beam

Abstract

The sill beam for the elevator comprises an elevator door, a sliding block and a sill beam body, the elevator door is located at the top of the sill beam body, the sliding block is fixedly connected to the bottom of the elevator door, a sill groove used in cooperation with the sliding block is formed in the top of the sill beam body, a transmission groove is formed in one side of the inner wall of the sill groove, and the transmission groove is fixedly connected with the sliding block. A rolling groove is formed in the other side of the inner wall of the sill groove, a rolling mechanism is arranged in the rolling groove, and the sliding block can roll in the sill groove. The rolling mechanism comprises a first rolling wheel arranged in the rolling groove. The utility model relates to the technical field of copying. According to the sill beam for the elevator, the rolling mechanism is arranged, the sliding block is located between the first rolling wheel and the second rolling wheel, movement of the sliding block in the sill groove is changed into rolling under driving of an elevator door, abrasion of the sliding block can be effectively reduced, and the service life of the sliding block is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a sill beam for elevators. Background Art

[0002] An elevator is a vertical lift powered by an electric motor and equipped with a car, used to transport people or goods in multi-story buildings. The sill beam is a metal pedal that connects the slider fixed to the lower part of the elevator door and is inserted into the sill groove from above, cooperating with the sill groove to enable the elevator door to slide horizontally. The sill beam has the function of limiting and guiding the elevator door.

[0003] Publication No. "CN212531933U" provides a new type of elevator sill structure, which increases the mechanical strength of the sill compared to the prior art. When external force acts on the elevator door, the door slider sticks close to the sill groove, greatly reducing the risk of the door slider detaching from the sill groove. In addition, the sill of this structure can further reduce the opening of the upper part of the sill groove, making it difficult for large objects to fall into the sill groove, thereby ensuring the cleanliness of the sill groove. When the elevator door is running, the door slider of the device can also effectively push the dust in the sill groove into the dust guide groove, so that the elevator door can operate reliably within the range of motion, is not prone to jamming, has a relatively simple structure, and has a low cost.

[0004] However, the above device still has the following problems during implementation:

[0005] In the prior art, the sill beam is mainly used to limit and guide the elevator door. The relative movement between the elevator door and the sill beam is sliding. There is frequent friction in this process, which will cause the slider at the bottom of the elevator door to wear easily and fail to slide normally, causing the elevator door to be unable to open and close. Utility Model Content

[0006] The utility model aims to provide a sill beam for an elevator to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A sill beam for an elevator comprises an elevator door, a slider and the sill beam, wherein the elevator door is located at the top of the sill beam, the slider is fixedly connected to the bottom of the elevator door, a sill groove for use with the slider is provided on the top of the sill beam, a transmission groove is provided on one side of the inner wall of the sill groove, a rolling groove is provided on the other side of the inner wall of the sill groove, and a rolling mechanism is provided inside the rolling groove to enable the slider to roll in the sill groove.

[0009] Preferably, the rolling mechanism comprises a first rolling wheel arranged inside the rolling groove, the top and bottom of the first rolling wheel are both provided with a first bearing seat, and the first rolling wheel is rotatably connected to the inner wall of the rolling groove through the first bearing seat;

[0010] The inner wall of the transmission groove is provided with a shell, and a plurality of second rolling wheels are provided inside the shell. The top and bottom of the second rolling wheels are provided with second bearing seats, and the second rolling wheels are rotatably connected to the inner wall of the shell through the second bearing seats.

[0011] By setting up a rolling mechanism, the slider can be located between the first rolling wheel and the second rolling wheel, and the movement of the slider in the sill groove driven by the elevator door is changed into rolling, which can effectively reduce the wear of the slider and extend the service life of the slider.

[0012] Preferably, an adjustment mechanism is provided on one side of the sill beam, which can adjust the position of the housing;

[0013] The adjustment mechanism includes three threaded rods threadedly connected to one side of the sill beam, one side of the sill beam is provided with a threaded hole used in conjunction with the threaded rod, one end of the threaded rod is provided with a third bearing seat, and is rotatably connected to one side of the shell through the third bearing seat, the other end of the threaded rod is fixedly connected to a twisting block, and two twisting grooves are provided on the surface of the twisting block.

[0014] By setting up an adjustment mechanism, the three twisting blocks can be rotated in sequence to drive the threaded rod to rotate inside the threaded hole, which will drive the third bearing seat and the shell to move along the trajectory of the dovetail block and the dovetail groove, gradually approaching the slider until the surface of the second rolling wheel in the shell contacts the slider to complete the adjustment, effectively improving the applicability of the device.

[0015] Preferably, two dovetail blocks are fixedly connected to the top and bottom of the shell, and the inner wall of the transmission groove is provided with a dovetail groove used in conjunction with the dovetail blocks.

[0016] By providing the dovetail block and the dovetail groove, the moving track of the shell and other structures can be restricted so that they can only be slid and adjusted along the track of the dovetail block and the dovetail groove.

[0017] Preferably, a first rubber ring is fixedly connected to the surface of the first rolling wheel, and a second rubber ring is fixedly connected to the surface of the second rolling wheel.

[0018] By providing the first rubber ring and the second rubber ring, when the slider moves and contacts the first rolling wheel and the second rolling wheel, the first rubber ring and the second rubber ring can reduce the noise generated and play a buffering role, thereby further reducing the wear of the slider.

[0019] Preferably, the positions of the first rolling wheel and the second rolling wheel are staggered.

[0020] By arranging the positions of the first rolling wheel and the second rolling wheel to be staggered with each other, the rolling stability of the slider in the sill groove can be improved, and the opening and closing accuracy of the elevator door can be improved.

[0021] Preferably, a plurality of ash leakage grooves are provided at the bottom of the sill groove, and the distance between two ash leakage grooves is 10 cm.

[0022] By setting up the ash leakage groove, the dust in the sill groove can be pushed out of the ash leakage groove during the movement of the slider. At the same time, the design of a 10cm distance between the two ash leakage grooves can ensure the stability of the sill beam and effectively remove the dust in the sill groove.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] 1. The utility model provides a rolling mechanism, and by locating the slider between the first rolling wheel and the second rolling wheel, the movement of the slider in the sill groove driven by the elevator door is changed into rolling, which can effectively reduce the wear of the slider and increase the service life of the slider.

[0025] 2. The utility model is provided with an adjustment mechanism, which can drive the threaded rod to rotate inside the threaded hole by rotating the three twisting blocks in sequence, and drive the third bearing seat and the housing to move along the trajectory of the dovetail block and the dovetail groove, gradually approaching the slider until the surface of the second rolling wheel in the housing contacts the slider to complete the adjustment, thereby effectively improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0027] Figure 2 It is a three-dimensional diagram of the sill beam of the utility model;

[0028] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A;

[0029] Figure 4 It is a schematic diagram of a cross-section of the main structure of the utility model;

[0030] Figure 5 It is a three-dimensional diagram of the shell of the utility model.

[0031] In the figure: 1. elevator door; 2. slider; 3. sill beam; 4. sill groove; 5. transmission groove; 6. rolling groove; 7. first rolling wheel; 8. first bearing seat; 9. housing; 10. second rolling wheel; 11. second bearing seat; 12. threaded rod; 13. threaded hole; 14. third bearing seat; 15. twisting block; 16. twisting groove; 17. dovetail block; 18. dovetail groove; 19. first rubber ring; 20. second rubber ring; 21. ash leakage groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0034] Embodiment 1:

[0035] A sill beam for an elevator comprises an elevator door 1, a slider 2 and a sill beam 3, wherein the elevator door 1 is located at the top of the sill beam 3, the slider 2 is fixedly connected to the bottom of the elevator door 1, a sill groove 4 for use with the slider 2 is provided at the top of the sill beam 3, a transmission groove 5 is provided on one side of the inner wall of the sill groove 4, a rolling groove 6 is provided on the other side of the inner wall of the sill groove 4, a rolling mechanism is provided inside the rolling groove 6, and the slider 2 can roll in the sill groove 4.

[0036] In this embodiment, the rolling mechanism includes a first rolling wheel 7 disposed inside the rolling groove 6, and a first bearing seat 8 is disposed on the top and bottom of the first rolling wheel 7, and is rotatably connected to the inner wall of the rolling groove 6 through the first bearing seat 8;

[0037] The inner wall of the transmission groove 5 is provided with a shell 9, and a plurality of second rolling wheels 10 are provided inside the shell 9. The top and bottom of the second rolling wheels 10 are provided with second bearing seats 11, and the second rolling wheels 10 are rotatably connected to the inner wall of the shell 9 through the second bearing seats 11.

[0038] In this embodiment, it is considered that the sill beam 3 is mainly used to limit and guide the elevator door 1, and the relative movement between the elevator door 1 and the sill beam 3 is sliding. There is frequent friction in this process, which will cause the slider 2 at the bottom of the elevator door 1 to be easily worn and unable to slide normally, causing the elevator door 1 to be unable to open and close. Therefore, by setting a rolling mechanism, the slider 2 can be located between the first rolling wheel 7 and the second rolling wheel 10, and the movement of the slider 2 in the sill groove 4 driven by the elevator door 1 is changed to rolling, which can effectively reduce the wear of the slider 2 and delay the service life of the slider 2.

[0039] Preferably, a first rubber ring 19 is fixedly connected to the surface of the first rolling wheel 7 , and a second rubber ring 20 is fixedly connected to the surface of the second rolling wheel 10 .

[0040] In this embodiment, by providing the first rubber ring 19 and the second rubber ring 20, when the slider 2 moves and contacts the first rolling wheel 7 and the second rolling wheel 10, the first rubber ring 19 and the second rubber ring 20 can reduce the noise generated and play a buffering role, thereby further reducing the wear of the slider 2.

[0041] Preferably, the positions of the first rolling wheel 7 and the second rolling wheel 10 are staggered with each other.

[0042] In this embodiment, by arranging the positions of the first rolling wheel 7 and the second rolling wheel 10 to be staggered with each other, the rolling stability of the slider 2 in the sill groove 4 can be improved, and the opening and closing accuracy of the elevator door 1 can be improved.

[0043] Preferably, a plurality of ash leakage grooves 21 are provided at the bottom of the sill groove 4, and the distance between two ash leakage grooves 21 is 10 cm.

[0044] In this embodiment, by providing the ash leakage groove 21, the dust in the sill groove 4 can be pushed to fall out of the ash leakage groove 21 during the movement of the slider 2. At the same time, the design of the distance between the two ash leakage grooves 21 being 10 cm can ensure the stability of the sill beam 3 and can effectively remove the dust in the sill groove 4.

[0045] Embodiment 2:

[0046] On the basis of the first embodiment, in this embodiment, considering that different models of elevator doors 1 have different sizes of corresponding sliders 2, if the slider 2 is not between the first rolling wheel 7 and the second rolling wheel 10, the normal rolling of the slider 2 cannot be guaranteed. In this application, an adjustment mechanism is provided on one side of the sill beam 3 to adjust the position of the housing 9;

[0047] The adjustment mechanism includes three threaded rods 12 threadedly connected to one side of the sill beam 3. A threaded hole 13 used in conjunction with the threaded rod 12 is opened on one side of the sill beam 3. A third bearing seat 14 is provided at one end of the threaded rod 12, and the threaded rod 12 is rotatably connected to one side of the housing 9 through the third bearing seat 14. The other end of the threaded rod 12 is fixedly connected to a twisting block 15, and two twisting grooves 16 are opened on the surface of the twisting block 15.

[0048] In this embodiment, considering that different models of elevator doors 1 have different sizes of corresponding sliders 2, if the slider 2 is not between the first rolling wheel 7 and the second rolling wheel 10, the normal rolling of the slider 2 cannot be guaranteed. Therefore, by setting an adjustment mechanism, the three twisting blocks 15 can be rotated in sequence to drive the threaded rod 12 to rotate inside the threaded hole 13, which will drive the third bearing seat 14 and the housing 9 to move along the track of the dovetail block 17 and the dovetail groove 18, gradually approaching the slider 2, until the surface of the second rolling wheel 10 in the housing 9 contacts the slider 2, and the adjustment is completed, which effectively improves the applicability of the device;

[0049] The problem that the slider 2 has different sizes corresponding to different types of elevator doors 1 and the slider 2 cannot be rolled normally if the slider 2 is not between the first rolling wheel 7 and the second rolling wheel 10 is solved.

[0050] Preferably, two dovetail blocks 17 are fixedly connected to the top and bottom of the housing 9 , and a dovetail groove 18 for use with the dovetail blocks 17 is formed on the inner wall of the transmission groove 5 .

[0051] In this embodiment, by providing the dovetail block 17 and the dovetail groove 18 , the movement trajectory of the housing 9 and other structures can be restricted so that they can only be slidably adjusted along the trajectory of the dovetail block 17 and the dovetail groove 18 .

[0052] Working principle: By rotating the three twisting blocks 15 in sequence, the threaded rod 12 is driven to rotate inside the threaded hole 13, which will drive the third bearing seat 14 and the housing 9 to move along the track of the dovetail block 17 and the dovetail groove 18, gradually approaching the slider 2, until the surface of the second rolling wheel 10 in the housing 9 contacts the slider 2, and the adjustment is completed;

[0053] At this time, the slider 2 is located between the first rolling wheel 7 and the second rolling wheel 10 , and the movement of the slider 2 in the sill groove 4 driven by the elevator door 1 changes to rolling, which can effectively reduce the wear of the slider 2 and extend the service life of the slider 2 .

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sill beam for an elevator, comprising an elevator door (1), a slider (2) and a sill beam (3), wherein the elevator door (1) is located at the top of the sill beam (3), and the slider (2) is fixedly connected to the bottom of the elevator door (1), characterized in that: A sill groove (4) for use with a slider (2) is provided at the top of the sill beam (3); a transmission groove (5) is provided on one side of the inner wall of the sill groove (4); a rolling groove (6) is provided on the other side of the inner wall of the sill groove (4); a rolling mechanism is provided inside the rolling groove (6) to enable the slider (2) to roll in the sill groove (4).

2. The elevator sill beam according to claim 1, characterized in that: The rolling mechanism comprises a first rolling wheel (7) arranged inside the rolling groove (6); a first bearing seat (8) is arranged at the top and bottom of the first rolling wheel (7), and the first bearing seat (8) is rotatably connected to the inner wall of the rolling groove (6); The inner wall of the transmission groove (5) is provided with a shell (9), and a plurality of second rolling wheels (10) are provided inside the shell (9). The top and bottom of the second rolling wheels (10) are provided with second bearing seats (11), and the second rolling wheels (10) are rotatably connected to the inner wall of the shell (9) via the second bearing seats (11).

3. The elevator sill beam according to claim 2, characterized in that: An adjustment mechanism is provided on one side of the sill beam (3) so as to adjust the position of the housing (9); The adjustment mechanism comprises three threaded rods (12) threadedly connected to one side of the sill beam (3); one side of the sill beam (3) is provided with a threaded hole (13) for use with the threaded rod (12); one end of the threaded rod (12) is provided with a third bearing seat (14) and is rotatably connected to one side of the housing (9) via the third bearing seat (14); the other end of the threaded rod (12) is fixedly connected with a twisting block (15); and the surface of the twisting block (15) is provided with two twisting grooves (16).

4. The elevator sill beam according to claim 3, characterized in that: Two dovetail blocks (17) are fixedly connected to the top and bottom of the housing (9), and a dovetail groove (18) for use with the dovetail blocks (17) is provided on the inner wall of the transmission groove (5).

5. The elevator sill beam according to claim 2, characterized in that: A first rubber ring (19) is fixedly connected to the surface of the first rolling wheel (7), and a second rubber ring (20) is fixedly connected to the surface of the second rolling wheel (10).

6. The elevator sill beam according to claim 2, characterized in that: The positions of the first rolling wheel (7) and the second rolling wheel (10) are staggered.

7. The elevator sill beam according to claim 1, characterized in that: A plurality of ash leakage grooves (21) are provided at the bottom of the sill groove (4), and the distance between two ash leakage grooves (21) is 10 cm.

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