Elevator ball-type door slide

Abstract

The utility model provides a kind of elevator ball type door slide block, including door slide block plate and ball, the door slide block plate is equipped with at least two mounting holes and at least one ball hole, the number of ball is consistent with the number of ball hole, and they are one-to-one corresponding rolling connection.In the utility model, point contact between ball and sill, rolling friction resistance is greatly reduced, and parallelism requirement for multi-group ball structure is not high, even if ball is seriously worn in long-term use, it is simple and fast to disassemble and install, only need to disassemble the utility model from door plate, replace ball, cooperate the utility model in sill, finally install on door plate, without damage to door plate, sill and other peripheral structures, can be realized on-demand quick replacement, effectively reduce equipment downtime maintenance length.

Description

Technical Field

[0001] This utility model belongs to the field of elevator technology, specifically relating to an elevator ball bearing door slider. Background Technology

[0002] Refer to Chinese Utility Model Patent CN202122767202.7 for a rolling elevator door slider, which includes a slider support plate, a roller support shaft, a support plate fastener, and a roller. The roller support shaft, the support plate fastener, and the roller are all disposed on the slider support plate. The slider support plate is provided with a slot, the roller support shaft is installed in the slot, and the roller is installed on the rotating shaft.

[0003] However, in this technical solution, the rollers need to be fitted onto the roller support shafts. The steps are quite complicated during both installation and disassembly. If multiple sets of roller structures are used, multiple roller support shafts need to be set accordingly. During the installation process, even with repeated calibration, there is still a risk of excessive deviation in the parallelism of the support shafts, which leads to accelerated wear rate. Utility Model Content

[0004] In order to overcome at least some of the shortcomings of the prior art, the present invention provides an elevator ball bearing door slider.

[0005] The technical solution provided by this utility model is: an elevator ball bearing door slider, including a door slider plate and ball bearings. The door slider plate is provided with at least two mounting holes and at least one ball bearing hole. The number of ball bearings is the same as the number of ball bearing holes, and the two are connected in a rolling manner in a one-to-one correspondence.

[0006] Furthermore, the door slider plate is a flat rectangular plate structure, and the corners of the door slider plate near the mounting hole are provided with a rounded corner transition structure.

[0007] Furthermore, both the mounting hole and the ball bearing hole are through holes, and the mounting hole is provided with an internal thread. The door slider plate is connected to the door panel by fasteners passing through the mounting hole.

[0008] Furthermore, the ball bearing rolls within the ball bearing hole, and the spherical surface of the ball bearing at least partially protrudes from the door slider plate. The distance between the outer wall of the door slider plate and the sill is at most no more than half the diameter of the ball bearing.

[0009] Furthermore, the centers of the ball bearing holes on the door slider plate are located on the same horizontal line.

[0010] Furthermore, the door slider plate includes a first door slider and a second door slider, which are fixed together by fasteners.

[0011] Furthermore, the first door slider is provided with at least two mounting holes and at least one ball bearing hole, and the second door slider is provided with at least two mounting holes and at least one ball bearing hole. The mounting holes of the first door slider and the second door slider correspond one-to-one and are coaxially aligned, and the ball bearing holes of the first door slider and the second door slider correspond one-to-one and are coaxially aligned.

[0012] Furthermore, the first door slider is provided with a positioning hole, and the second door slider is provided with a positioning post, the positioning post being adapted and matched with the positioning hole.

[0013] Furthermore, the first and second sliding blocks extend outward from the ball bearing hole to form a ball bearing wall. The shape of the ball bearing wall is adapted to the shape of the ball bearing, and the ball bearing wall has an opening, with the ball bearing at least partially protruding from the opening.

[0014] Furthermore, the first door slider is provided with a lubricating oil channel, which is connected to the ball bearing hole.

[0015] The beneficial effects of this utility model are as follows: In this utility model, the ball bearings and the threshold are in point contact, which greatly reduces the rolling friction resistance. At the same time, the parallelism requirements for multiple sets of ball bearing structures are not high. Even if the ball bearings are severely worn during long-term use, disassembly and installation are simple and quick. It is only necessary to remove this utility model from the door panel, replace the ball bearings, and then fit this utility model into the threshold and finally install it on the door panel. There is no need to damage the door panel, threshold and other surrounding structures. It can achieve quick replacement as needed and effectively reduce the downtime of equipment maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation of a ball-bearing door slider in an elevator; Figure 2 This is a schematic diagram of the installation of the door slider plate and ball bearing in Embodiment 1; Figure 3 yes Figure 2 Side view; Figure 4 This is a schematic diagram of the installation of the door slider plate and ball bearing in Embodiment 2; Figure 5 yes Figure 4 Side view. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0018] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0019] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model. Example 1

[0020] See Figures 1 to 5 This embodiment discloses an elevator ball bearing door slider, including a door slider plate 1 and ball bearings 2. The door slider plate 1 is provided with at least two mounting holes 11 and at least one ball bearing hole 12. The number of ball bearings 2 is the same as the number of ball bearing holes 12, and the two are connected in a rolling manner in a one-to-one correspondence.

[0021] Furthermore, the door slider plate 1 is a flat rectangular plate structure. The flat structure can reduce the volume occupied after installation, while ensuring a tight fit with the door panel 4 to prevent shaking during elevator door operation. The door slider plate 1 has a rounded corner transition structure near the mounting hole 11. This rounded corner structure can prevent the corners from being too sharp and scratching the hands of the installer or the contact parts of the elevator door panel 4, improving safety during installation and use, and making it easier for the installer to identify the installation direction of this utility model more quickly during installation.

[0022] Furthermore, both the mounting hole 11 and the ball bearing hole 12 are through holes. The mounting hole 11, as a through hole, facilitates the fastener to pass through from one side of the door slider plate 1 to the other side, thereby achieving a stable connection with the door panel 4. The ball bearing hole 12, as a through hole, not only facilitates the assembly of the ball bearing 2, but also provides sufficient space for the ball bearing 2 to roll, and also facilitates the discharge of impurities during daily use, preventing them from accumulating in the hole and affecting the rolling effect of the ball bearing 2. The mounting hole 11 is provided with internal threads, and the mounting hole 11 is connected to the door panel 4 by fasteners.

[0023] Furthermore, the centers of the ball bearing holes 12 are located on the same horizontal line. When the elevator door slides, each ball bearing 2 can simultaneously contact and be subjected to force with the sill 3, ensuring uniform force distribution and avoiding the elevator door from jamming or localized wear aggravation due to force deviation, thereby improving the smoothness of the sliding process.

[0024] Furthermore, the ball bearing 2 rolls within the ball bearing hole 12, and the spherical surface of the ball bearing 2 at least partially protrudes from the door slider plate 1 to make contact with the sill 3. The protruding spherical surface converts the sliding friction of the elevator door into the rolling friction of the ball bearing 2, reducing frictional resistance and making the opening and closing of the elevator door smoother and less strenuous. The distance between the outer wall of the door slider plate 1 and the sill 3 is at most no more than half the diameter of the ball bearing 2, so that the ball bearing 2 cannot obtain enough space when it moves in the rolling direction, and its range of motion is limited to inside the ball bearing hole, and it cannot completely disengage from the ball bearing hole 12.

[0025] The ball 2 has a smooth spherical surface without any protrusions or depressions. The smooth surface can reduce the coefficient of friction between the ball 2 and the inner wall of the ball hole 12 and the guide rail, which can not only improve the smoothness of rolling, but also reduce the noise generated by friction.

[0026] Based on the above structure, during installation, the ball bearings 2 are placed one-to-one in the ball bearing holes 12, and the door slider plate 1 and the ball bearings 2 are fitted together with the sill 3. Due to the limiting effect of the sill 3, the ball bearings 2 can roll within the ball bearing holes 12 but will not completely disengage. Then, the door slider plate 1 is installed on the door panel 4 through the mounting holes 11. The installation steps are simple, and it can be disassembled and replaced at any time without damaging the door panel 4, sill 3 and other surrounding structures. It can achieve quick replacement as needed, effectively reducing equipment downtime for maintenance. Example 2

[0027] The specific implementation content of this embodiment is largely the same as that of Embodiment 1, with the following differences: (See attached document) Figures 1 to 5The door slider plate 1 includes a first door slider 13 and a second door slider 14. The first door slider 13 and the second door slider 14 are fixed together by fasteners. The first door slider 13 is provided with at least two mounting holes 11 and at least one ball bearing hole 12. The second door slider 14 is provided with at least two mounting holes 11 and at least one ball bearing hole 12. The mounting holes 11 of the first door slider 13 and the second door slider 14 correspond one-to-one and are coaxially aligned. The ball bearing holes 12 of the first door slider 13 and the second door slider 14 correspond one-to-one and are coaxially aligned. A first sliding block 13 is provided with a positioning hole 131, and a second sliding block 14 is provided with a positioning post 141. The positioning post 141 is adapted to the positioning hole 131. The first sliding block 13 and the second sliding block 14 extend outward from the ball hole 12 to form a ball wall 15. The shape of the ball wall 15 is adapted to the shape of the ball 2, and the ball wall 15 has an opening. The ball 2 at least partially protrudes from the opening. The first sliding block 13 is provided with a lubricating oil channel 132, which communicates with the ball hole 12.

[0028] Based on the above structure, the first door slider 13 and the second door slider 14 are connected together by fasteners passing through the mounting hole 11. During installation, the positioning post 141 and the positioning hole 131 are engaged to quickly and accurately position the first door slider 13 and the second door slider 14. The ball bearing 2 is protected by the ball bearing wall 15 between the first door slider 13 and the second door slider 14. During movement, the ball bearing 2 will not roll out of the door slider plate 1. The ball bearing 2 only contacts the sill 3 through the part protruding outside the ball bearing hole 12, which makes the service life of the ball bearing 2 longer. In this embodiment, the running speed of the door slider plate 1 can be increased by adding lubricating oil to the lubrication channel 132.

[0029] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. An elevator ball-bearing door slider, comprising a door slider plate (1), characterized in that: It also includes ball bearings (2). The door slider plate (1) is provided with at least two mounting holes (11) and at least one ball bearing hole (12). The number of ball bearings (2) is the same as the number of ball bearing holes (12), and they are connected in a rolling manner in a one-to-one correspondence. The ball bearings (2) roll and engage within the ball bearing holes (12). The spherical surface of the ball bearings (2) protrudes at least partially from the door slider plate (1). The distance between the outer wall of the door slider plate (1) and the threshold (3) is at most no more than a fraction of the diameter of the ball bearings (2). Half; the center of the ball hole (12) on the door slider plate (1) is located on the same horizontal line; the door slider plate (1) includes a first door slider (13) and a second door slider (14), the first door slider (13) and the second door slider (14) are fixed together by fasteners; the first door slider (13) is provided with a positioning hole (131), the second door slider (14) is provided with a positioning post (141), and the positioning post (141) is adapted to cooperate with the positioning hole (131).

2. The elevator ball-bearing door slider according to claim 1, characterized in that: The door slider plate (1) is a flat rectangular plate structure, and the corners of the door slider plate (1) near the mounting hole (11) are provided with rounded corner transition structure.

3. The elevator ball-bearing door slider according to claim 1, characterized in that: Both the mounting hole (11) and the ball bearing hole (12) are through holes. The mounting hole (11) is provided with an internal thread. The door slider plate (1) is connected to the door plate (4) by fasteners passing through the mounting hole (11).

4. The elevator ball-bearing door slider according to claim 1, characterized in that: The first door slider (13) is provided with at least two mounting holes (11) and at least one ball hole (12), and the second door slider (14) is provided with at least two mounting holes (11) and at least one ball hole (12). The mounting holes (11) of the first door slider (13) and the second door slider (14) correspond one-to-one and are coaxially aligned. The ball holes (12) of the first door slider (13) and the second door slider (14) correspond one-to-one and are coaxially aligned.

5. The elevator ball-bearing door slider according to claim 1, characterized in that: The first door slider (13) and the second door slider (14) extend outward from the ball hole (12) to form a ball wall (15). The shape of the ball wall (15) is adapted to the shape of the ball (2), and the ball wall (15) has an opening. The ball (2) protrudes at least partially from the opening.

6. The elevator ball-bearing door slider according to claim 1, characterized in that: The first door slider (13) is provided with a lubricating oil channel (132), which is connected to the ball hole (12).

Images