Door positioner assembly

Abstract

The door positioner assembly includes a positioning block and a base adapted for use with the positioning block, and a first magnetic element is provided on the base; the characterised in that the positioning block includes an outer shell and a positioning column movably arranged in the outer shell, the outer shell is in a barrel shape and includes a barrel side wall and a shell cavity defined by the barrel side wall, and the upper end of the outer shell is open; the positioning column includes a column, and a second magnetic element which can adapt to the first magnetic element to generate magnetic force is provided at the lower end of the column, and the column can be inserted into the shell cavity through the upper end opening of the outer shell, and the column can extend downwardly out of the shell cavity; it also includes an elastic reset device provided in the shell cavity, in a natural state; the beneficial technical effect is that: under the action of the elastic reset device, the positioning column is retracted in the outer shell in a natural state, which makes the overall volume of the positioning block in a natural state relatively small, especially shortens the overall length of the positioning block, which greatly reduces the risk of people tripping when walking.

Description

Technical Field

[0001] The present invention relates to a door positioner, in particular to a door positioner with a magnetic attraction element. Background Art

[0002] Door positioners are common household items. They are mainly used to keep the door leaf in an open state when the door is opened, and also have the function of preventing the door leaf from being blown away by the wind or accidentally touched and closing. Magnetic door stoppers are common door positioners on the market. They are usually composed of a magnet base with a permanent magnet installed and a suction rod that matches the magnet base. The magnet base is fixed on the door leaf, and one end of the iron suction rod is fixed on the floor or wall, and the other end is an iron ball facing the door leaf and capable of being attracted to the permanent magnet. When the door is opened, the door leaf drives the magnet base to move closer to the suction rod and allows the iron ball to be attracted to the permanent magnet, thereby keeping the door leaf in an open state. Although this traditional door stopper is simple, it has many disadvantages. (1) The iron suction rod is long in overall shape for easy installation. When installed on the wall or floor, it is easy to trip pedestrians. (2) The iron ball directly contacts the permanent magnet, which will produce a lot of noise and affect people's life and study. (3) The iron ball is exposed and is easy to rust in a humid environment. Summary of the Invention

[0003] In response to the deficiencies of the prior art, the present invention proposes a door positioner assembly, comprising a positioning block and a base adapted for use with the positioning block, wherein the base is provided with a first magnetic element; the characteristic is that the positioning block comprises an outer shell and a positioning column movably disposed in the outer shell, the outer shell is in a barrel shape and comprises a barrel side wall and a shell cavity defined by the barrel side wall, and the upper end of the outer shell is open; the positioning column comprises a column, the lower end of the column is provided with a second magnetic element that can adapt to the first magnetic element to generate magnetic force, and the column can be inserted into the shell through the upper end opening of the outer shell. The column can extend downward from the shell cavity; it also includes an elastic reset device arranged in the shell cavity. In a natural state, the elastic reset device can overcome the weight of the positioning column and the second magnetic element and drive the positioning column to retract upward into the shell cavity; when the positioning block moves to allow the second magnetic element to approach the first magnetic element, under the action of the mutual magnetic attraction between the second magnetic element and the first magnetic element, the column extends out of the shell cavity to allow the first magnetic element and the second magnetic element to attract each other, thereby achieving magnetic combination and positioning between the positioning block and the base.

[0004] In which, the shell cavity is the internal space of the outer shell defined by the side wall of the barrel, and the shell cavity can be used to place the positioning column and the elastic reset device; the shell cavity is connected to the upper space of the outer shell through the upper end opening of the outer shell, and at the same time, the lower part of the outer shell is also provided with a lower end opening for allowing the column to pass through, such as the bottom wall through hole mentioned below, and the shell cavity can be connected to the lower space of the outer shell through the bottom wall through hole.

[0005] Among them, the second magnetic element that can adapt to the first magnetic element to generate magnetic force is a component arranged on the lower end of the column, and is used to cooperate with the first magnetic element to generate magnetic force for mutual attraction; the setting method of the second magnetic element and the first magnetic element is flexible and diverse. The first setting method is that the first magnetic element is a permanent magnet, and the second magnetic element is a metal body with a magnetic chip and can be mutually attracted with the first magnetic element; the second setting method is that the second magnetic element is a permanent magnet, and the first magnetic element is a metal body with a magnetic chip and can be mutually attracted with the second magnetic element; the third setting method is that the first magnetic element and the second magnetic element are both permanent magnets.

[0006] Among them, the column can be inserted into the shell cavity through the upper end opening of the outer shell, and the column can extend downward from the shell cavity, which includes two aspects of meaning. On the one hand, the inner diameter of the upper end opening of the outer shell is larger than the outer diameter of the column, so that the column can be installed in the outer shell from top to bottom in a simple manner; on the other hand, the lower end of the outer shell is also provided with the lower end opening, so that when the positioning block moves to allow the second magnetic element to approach the first magnetic element, the column can move downward and extend out of the shell cavity under the action of the mutual magnetic attraction between the second magnetic element and the first magnetic element.

[0007] Among them, the elastic reset device is an elastic component arranged in the shell cavity for driving the positioning column after extending downward from the shell cavity to reset and move into the shell cavity. The setting form of the elastic reset device is various, and it can be the spring mentioned below, or it can be a spring, an elastic block, a gas spring, etc.; and the elastic reset device can be used to push the positioning column or to pull the positioning column.

[0008] According to the above technical solution, compared with the prior art, the beneficial technical effects of the present invention are: first, under the action of the elastic reset device, the positioning column is retracted into the outer shell in a natural state, which makes the overall volume of the positioning block in a natural state relatively small, especially shortens the overall length of the positioning block, which greatly reduces the risk of people tripping when walking; second, in actual use, when the positioning block moves and moves with the second magnetic element and approaches the first magnetic element, the positioning column can extend downward from the shell cavity and combine with the first magnetic element, so that the positioning block and the base have better magnetic positioning function; third, when there is no mutual magnetic attraction between the positioning block and the base, the second magnetic element can follow the column to retract into the outer shell, which can reduce the contact between the iron magnetic element and humid air, thereby protecting the magnetic element and extending the service life of the locator.

[0009] A further technical solution may also include a cylindrical adjustment block disposed in the shell cavity, the adjustment block being provided with an external thread, the upper end portion of the outer shell barrel side wall being provided with an internal thread that cooperates with the external thread, the adjustment block being mounted on the barrel side wall in an adjustable height through the cooperation of the external thread and the internal thread, thereby blocking the upper end opening of the outer shell, and the column being located below the adjustment block. The external thread on the adjustment block and the internal thread on the outer shell can cooperate, allowing the adjustment block to be well positioned at the upper end portion of the outer shell barrel side wall, thereby preventing the positioning column from exiting the upper end opening of the outer shell and also forming a position above the positioning column, thereby controlling the column to retract to a position within the outer shell under the action of the elastic reset device. On the other hand, the adjusting block and the outer shell are movably connected by a thread. By rotating the adjusting block, the adjusting block can spirally move up and down in the side wall of the barrel, and the adjusting block is also a component that provides height positioning for the positioning column. This makes it convenient to fine-tune the adjusting block after the positioner is installed on the door leaf to adjust the distance between the first magnetic element and the second magnetic element arranged at the lower end of the column, thereby optimizing the mutual attraction force between the first magnetic element and the second magnetic element.

[0010] To facilitate adjustment of the position of the adjustment block, a drive coupling portion is provided on the outer end surface of the adjustment block for receiving an external driving force, thereby facilitating the spiral movement of the adjustment block. The drive coupling portion is a component provided on the outer end surface of the adjustment block for receiving and transmitting an external driving force to the adjustment block. The drive coupling portion may be integrally formed with the adjustment block and provided with an interface for connecting commonly used tools, such as a slot, a cross slot, a polygonal groove, or a polygonal protrusion. It may also be a component for handholding, such as a handle. Thus, the drive coupling portion greatly facilitates the installation and position adjustment of the adjustment block.

[0011] A further technical solution may also include a cylindrical adjustment block arranged in the shell cavity, the adjustment block is bonded to the barrel side wall to block the upper end opening of the outer shell, and the column is located below the adjustment block.

[0012] A further technical solution may be that the second magnetic element is installed in the column with its head retracted, and there is a height difference between the lower end surface of the second magnetic element and the lower end surface of the column. The lower end surface of the column does not completely enclose the second magnetic element, thereby leaving at least part of the second magnetic element exposed, thereby reducing magnetic shielding. The height difference between the lower end surface of the second magnetic element and the lower end surface of the column means that when the second magnetic element is installed in the column, the lower end surface of the second magnetic element is retracted below the lower surface of the column. The magnetic element may be clamped by the wall of the column or a step may be provided at the bottom of the column to limit the position of the lower end surface of the magnetic element. The advantage of this is that when the column is combined with the base, the lower surface of the column contacts the base, thereby effectively reducing the noise generated by the collision when the first magnetic element and the second magnetic element are attracted to each other. On the other hand, the lower end surface of the column does not completely enclose the second magnetic element, which means that the second magnetic element can be seen from the lower end of the column. One implementation method may be to provide a through-hole structure on the lower end surface of the column. The advantage of this is that it reduces the wall obstruction at the lower end of the column, increases the magnetic bonding force between the first magnetic element and the second magnetic element, and thus makes the magnetic bonding between the positioning block and the base stronger.

[0013] A further technical solution may be that the outer shell is barrel-shaped and also includes a barrel bottom wall connected to the barrel side wall, the barrel side wall and the barrel bottom wall jointly define the shell cavity, and the barrel bottom wall is provided with a bottom wall through hole connected to the shell cavity, and the column can pass through the bottom wall through hole; the positioning column is T-shaped and also includes a convex edge provided at the upper end of the column and extending radially, the diameter of the convex edge is larger than the diameter of the bottom wall through hole but smaller than the diameter of the opening at the upper end of the outer shell; the elastic reset device is a spring, and the spring is provided between the barrel bottom wall and the convex edge. In which, the diameter of the convex edge is larger than the diameter of the bottom wall through hole but smaller than the diameter of the upper end opening of the outer shell, so that the positioning column can be completely installed in the shell cavity through the upper end opening of the outer shell. Due to the provision of the convex edge, the positioning column is blocked by the barrel bottom wall and cannot fall out from the lower end of the outer shell; at the same time, the barrel side wall, barrel bottom wall, column and the convex edge can form an annular space, and the spring makes excellent use of the annular space in the shell cavity. In one embodiment, the spring is mounted on the column, which makes the positioning block easy to install and compact inside, greatly reducing the volume of the positioning block.

[0014] To facilitate installation of the positioning block, a positioning plate is provided on the outer shell, and a mounting through-hole is provided on the positioning plate. The positioning plate can be arranged on the barrel sidewall along the axial direction of the outer shell, or on the barrel sidewall or barrel bottom wall along the radial direction of the outer shell, so that the positioning block can be mounted on the door leaf through the mounting through-hole in a flexible and diverse manner.

[0015] In order to further improve the positioning effect of the column, an upright blocking wall is provided on the base, the first magnetic element is located in front of the blocking wall and the upper surface of the first magnetic element is lower than the blocking wall, so that when the positioning block moves to allow the second magnetic element to approach the first magnetic element, the column is blocked in front of the blocking wall so that the blocking wall forms a blocking limit for the column in the forward direction. The blocking wall is a wall provided on the base for blocking the forward movement of the column, and the blocking wall is provided to be higher than the upper surface of the first magnetic element. The advantage of this is that when the second magnetic element approaches the first magnetic element, the column on the positioning block extends downward and combines with the base. Since the blocking wall blocks the column from continuing to move forward, the positioning block can be better positioned under the dual limiting effects of the magnetic attraction force between the second magnetic element and the first magnetic element and the blocking wall.

[0016] A further technical solution may be that the base is provided with a dustpan-shaped groove, the groove including left and right side walls and a bottom wall, the blocking wall is located at the tail end of the groove, the groove is arranged in a direction adapted to the movement of the column, the width of the groove is greater than the outer diameter of the lower end of the column, and the first magnetic element is arranged on the bottom wall, so that when the lower end of the column enters the groove, the left and right side walls of the groove can form left and right limits for the column in the left and right directions. Wherein, the groove includes left and right side walls, a bottom wall and a blocking wall at the tail end, but the dustpan-shaped groove does not have a wall at its head end, which allows the column to enter the groove from the opening at the head end of the groove; and the width of the groove is greater than the outer diameter of the lower end of the column so that the column can enter the groove smoothly, and after the column is combined with the first magnetic element of the base, it can further limit the column from the left and right sides, so that the positioning block can be better positioned. The left and right side walls can be arranged in parallel, or in an eight-shaped arrangement so that the width of the head end opening is greater than the width of the blocking wall.

[0017] Since the present invention has the above characteristics and advantages, it can be applied to door positioners. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the exploded structure of a door positioner assembly using the technical solution of the present invention;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the positioner in the first installation mode, showing the internal structure of the positioner;

[0020] Figure 3 This is a schematic diagram of the shaft side structure of the positioner in the first installation method, showing the installation method of the positioner;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the outer shell in the front view direction, showing the internal structure of the outer shell;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the positioning block in the second installation method, showing the internal structure of the positioning block;

[0023] Figure 6 This is a schematic diagram of the axial direction structure of the positioner in the second installation method, showing the installation method of the positioner;

[0024] Figure 7 It is a schematic diagram of the axial structure of the base. DETAILED DESCRIPTION

[0025] The structure of the door positioner assembly using the technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0026] like Figures 1 to 4 As shown, the door positioner assembly proposed in the present invention includes a positioning block 2 and a base 1 adapted for use with the positioning block 2. The installation methods of the positioning block 2 and the base 1 can be flexible and diverse, and generally, flexible arrangements are made according to the actual installation environment. In this embodiment, the base 1 is fixedly installed on the ground, and the positioning block 2 is fixed on the door leaf, and the positioning block 2 can move with the door leaf. A first magnetic element 11 is provided on the base 1, and the base 1 is flat and its height is less than the distance between the bottom of the door leaf and the ground. The base 1 is arranged in this way. On the one hand, it will not affect the door leaf from colliding with the door leaf when it is opened, and on the other hand, it reduces the risk of people being tripped by the base 1 when walking. In this embodiment, the flat first magnetic element 11 is a permanent magnet and part of its upper surface is exposed. The positioning block 2 includes an outer shell 21 and a positioning post 22 movably disposed within the outer shell 21. To allow the positioning post 22 to move within the outer shell 21, the outer shell 21 is barrel-shaped and includes a barrel sidewall 211 and a housing cavity 210 defined by the barrel sidewall 211. The housing cavity 210 is the interior space of the outer shell 21 defined by the barrel sidewall 211, and serves as the movable space for the positioning post 22 within the outer shell 21. The outer shell 21 has an upper opening 213, and the positioning post 22 includes a column 221. The column 221 can be inserted into the housing cavity 210 through the upper opening 213 of the outer shell 21, and the column 221 can extend downward from the housing cavity 21. The outer shell 21 is in the shape of a barrel and further includes a barrel bottom wall 212 connected to the barrel side wall 211. The barrel side wall 211 and the barrel bottom wall 212 together define the shell cavity 210. The barrel bottom wall 212 is provided with a bottom wall through-hole 214 connected to the shell cavity 210, and the column 221 can pass through the bottom wall through-hole 214. In this way, the shell cavity 210 is connected to the upper space of the outer shell 21 through the upper end opening 213 of the outer shell 21; the shell cavity 210 is connected to the lower space of the outer shell 21 through the bottom wall through-hole 214. From the movement of the positioning column 22 in the outer shell 21, it can be seen that the positioning column 22 can be partially or completely stored in the outer shell 21, which greatly shortens the overall length of the positioning block 2 in its natural state and reduces the risk of people tripping when walking;

[0027] The lower end of the column 221 is provided with a column cavity 2210, within which is placed a second magnetic element 23 capable of adapting to and attracting the first magnetic element 11 to generate a magnetic force. The second magnetic element 23 and the first magnetic element 11 can be arranged in a flexible and diverse manner. In order to generate a greater adsorption force, the second magnetic element 23 is configured as a permanent magnet. During installation, the corresponding magnetic poles of the first magnetic element 11 and the second magnetic element 23 are adjusted to opposite poles. The purpose of providing the magnetic element is that when the second magnetic element 23 approaches the first magnetic element 11, under the mutual magnetic attraction between the second magnetic element 23 and the first magnetic element 11, the column 221 can extend downward from the housing cavity 21 and be coupled to the base 1.

[0028] In order to better protect the magnetic element, the second magnetic element 23 is installed in the column 221 with its head shrunk, and there is a height difference between the lower end surface of the second magnetic element 23 and the lower end surface of the column 221. Figure 2 As shown, the second magnetic element 23 is retracted inside the column 221, and the lower end surface of the second magnetic element 23 is separated from the lower surface of the column 221 by the column bottom wall 2211 at the lower end of the column 221. However, in order to allow the second magnetic element 23 to be as close as possible to the lower end surface of the column 221, the thickness of the column bottom wall 2211 should be set as thin as possible while ensuring that it can be manufactured and has sufficient strength. The advantages of this are that, on the one hand, the second magnetic element 23 is as close as possible to the bottom surface of the column 221 to ensure that the two magnetic elements can be attracted together; on the other hand, when the column 221 is combined with the base 1, the lower surface of the column 221 collides with the base 1 or the first magnetic element 11, thereby achieving the purpose of reducing noise.

[0029] In order to ensure that the positioning block 2 is more firmly combined with the base 1, the lower end surface of the column 221 does not completely enclose the second magnetic element 23, so that at least part of the second magnetic element 23 is exposed, thereby reducing magnetic shielding. Figure 2 As shown, the bottom wall 2211 of the column is provided with a bottom hole 2212. When viewed from below, the lower surface of the second magnetic element 23 can be seen through the bottom hole 2212. However, to ensure that the second magnetic element 23 is retracted inside and does not fall out, the inner diameter of the bottom hole 2212 is smaller than the outer diameter of the second magnetic element 23. This has the advantage of reducing the obstruction of the bottom wall 2211, ensuring the magnetic bonding force between the first magnetic element 11 and the second magnetic element 23, and thus making the magnetic bonding between the positioning block 2 and the base 1 more secure.

[0030] There are various ways to install the second magnetic element 23 on the column 221. In this embodiment, Figure 2 As shown, the column 221 further includes a column top hole 2213 provided at the upper end of the column 221, the column top hole 2213 communicating with the column cavity 2210, and the second magnetic element 23 can be placed into the column cavity 2210 through the column top hole 2213. In another embodiment, the column 221 can further include a column side hole 2214 (not shown) on the side wall of the column 221, the column side hole 2214 communicating with the column cavity 2210, and the second magnetic element 23 can be placed into the column cavity 2210 through the column side hole 2214.

[0031] The positioning post 22 is T-shaped and further includes a flange 222 provided at the upper end of the column 221 and extending radially. The diameter of the flange 222 is larger than the diameter of the bottom wall through hole 214 but smaller than the diameter of the upper end opening 213 of the outer shell 21. In this way, after the positioning post 22 is installed into the shell cavity 210 through the upper end opening 213 of the outer shell 21, the flange 222 of the positioning post 22 is blocked by the barrel bottom wall 212, and the positioning post 22 cannot fall out of the lower end of the outer shell 21. Instead, only the lower end of the column 221 can pass through the bottom wall through hole 214. In this embodiment, as Figure 2As shown, the barrel side wall 211, the barrel bottom wall 212, the column 221, and the flange 222 form an annular space 2101. The positioning block 2 also includes a spring 24 disposed within the housing cavity 210. The spring 24 is sleeved on the column 221 and is precisely disposed in the annular space 2101 between the barrel bottom wall 212 and the flange 222. The advantages of such a configuration of the spring 24 are, on the one hand, that the spring 24 is easily installed together with the positioning column 22, and on the other hand, the compact internal installation structure can effectively reduce the volume of the positioning block 2. The spring 24 is an elastic component arranged in the shell cavity 210 for driving the positioning column 22 installed in the cavity of the outer shell 21 to move upward. The spring 24 is a kind of elastic reset device, and the specific setting form of the elastic reset device is diverse. It can be a spiral spring, a spring, an elastic rubber block, a gas spring, etc., and the elastic reset device can be an upward pushing reset method as shown in this embodiment, or a pulling upward reset method. The elastic reset device can overcome the weight of the positioning column 22 and the second magnetic element 23 and drive the positioning column 22 to shrink upward into the shell cavity 210; when the positioning block 2 follows the movement of the door leaf to allow the second magnetic element 23 to approach the first magnetic element 11, under the mutual magnetic attraction between the second magnetic element 23 and the first magnetic element 11, the column 221 extends out of the shell cavity 210 and combines with the first magnetic element 11, thereby achieving magnetic combination and positioning between the positioning block 2 and the base 1.

[0032] Furthermore, the positioning block 2 also includes a cylindrical adjustment block 25 arranged in the shell cavity 210, and the adjustment block 25 is provided with an external thread 251. The upper end of the barrel side wall 211 of the outer shell 21 is provided with an internal thread 2111 that matches the external thread 251. The adjustment block 25 is adjustably mounted on the barrel side wall 211 through the matching height of the external thread 251 and the internal thread 2111, thereby blocking the upper end opening 213 of the outer shell 21. In order to facilitate the adjustment of the position of the adjustment block 25, a drive coupling portion 252 for receiving an external driving force is also provided on the outer end surface of the adjustment block 25. The drive coupling portion 252 is a component arranged on the outer end surface of the adjustment block 25 for receiving and transmitting an external driving force to the adjustment block 25. The drive coupling portion 252 can be integrally formed with the adjustment block 25 and provided with an interface for convenient connection of common tools. In this embodiment, as Figure 1As shown, the drive coupling portion 252 is configured as an internal hexagonal groove interface, which can be used to conveniently install and adjust the position of the adjustment block 25 by pairing it with a commonly used hexagonal key. Of course, the drive coupling portion 252 can be configured in various forms, including: a straight groove, a cross groove, a polygonal groove, or other protruding connection structure; it can also be a member for hand grasping, such as a handle. The column 221 is located below the adjustment block 25. This prevents the positioning column 22 from exiting the upper end opening 213 of the outer shell 21 and allows it to be positioned above the positioning column 22, thereby controlling the column 221 to retract to a position within the outer shell 21 under the force of the spring 24. On the other hand, the adjusting block 25 and the outer shell 21 are movably connected through a thread. By rotating the adjusting block 25, the adjusting block 25 can be spirally moved up and down in the barrel side wall 211, and the adjusting block 25 also provides height positioning for the positioning column 22. This makes it convenient to fine-tune the adjusting block 25 after the positioner 2 is installed on the door leaf to adjust the distance between the first magnetic element 11 and the second magnetic element 23 arranged at the lower end of the column 221, thereby optimizing the mutual attraction between the first magnetic element 11 and the second magnetic element 23.

[0033] In order to further improve the positioning effect of the locator, such as Figure 1 、 Figure 2 and Figure 7 As shown, the base 1 is provided with an upright blocking wall 134, the first magnetic element 11 is located in front of the blocking wall 134 and the upper surface of the first magnetic element 11 is lower than the blocking wall 134, so that when the positioning block 2 moves to allow the second magnetic element 23 to approach the first magnetic element 11, the column 221 is blocked in front of the blocking wall 134, so that the blocking wall 134 forms a blocking limit for the column 221 in the forward direction. The blocking wall 134 is a wall provided on the base 1 for blocking the forward movement of the column 221. In this embodiment, as shown in FIG. Figure 1As shown, the blocking wall 134 is integrally formed with the base 1. Furthermore, to further enhance the positioning effect of the base 1, a groove 13 is provided on the base 1. The groove 13 includes a left side wall 131, a right side wall 132, and a bottom wall 133. The blocking wall 134 is located at the rear end of the groove 13, while no wall is provided at the front end of the groove 13. The groove 13 formed by the left side wall 131, the right side wall 132, the bottom wall 133, and the blocking wall 134 is shaped like a dustpan. The groove 13 is arranged in a direction adapted to the movement of the column 221. To allow the column 221 to enter the groove 13, the width of the groove 13 is greater than the outer diameter of the lower end of the column 221. When the lower end of the column 221 enters the groove 13, the left and right side walls of the groove 13 can form left and right limits for the column 221 in the left and right directions. Combined with the blocking wall 134, the base can effectively limit the position of the column 221 in the left, right, and front directions. The first magnetic element 11 is arranged on the bottom wall 133, so that the blocking wall 134 is higher than the upper surface of the first magnetic element 11. The purpose of this arrangement is that when the positioning block 2 approaches the base 1, the column 221 extends downward and combines with the base 1 under the mutual attraction between the second magnetic element 23 and the first magnetic element 11. At this time, the blocking wall 134 arranged higher than the upper surface of the first magnetic element 11 can just serve as a positioning member in front of the column 221.

[0034] In order to facilitate the installation of the positioning block 2, a positioning plate 215 is provided on the outer shell 21, and the positioning plate 215 is provided with mounting holes (2151, 2151a). In order to achieve the diversity of the installation methods of the positioning block 2, two of them are listed here:

[0035] The first installation method, such as Figure 2 and Figure 4 As shown, the positioning plate 215 can be arranged on one side of the barrel side wall 211 along the axial direction of the outer shell 21, and the mounting through-hole 2151 is provided on the positioning plate 215. Such a positioning plate 215 is conveniently mounted on the side of the door leaf in a side-mounted manner. Furthermore, the mounting through-hole 2151 can be configured as an elongated strip, which facilitates position adjustment when installing the positioning block 2.

[0036] The second installation method, such as Figure 5 and Figure 6As shown, the positioning plate 215 can be arranged at the lower end of the outer shell 21 along the radial direction of the outer shell 21, and a mounting through hole 2151a is provided on the positioning plate 215. During installation, it is necessary to first drill a mounting cavity that can accommodate the positioning block 2 at the bottom of the door leaf, place the outer shell 21 in the mounting cavity, and then fix the positioning block 2 to the bottom of the door leaf by screws passing through the mounting through hole 2151a. This installation method can well hide the positioning block 2 in the door leaf. In this installation method, the positioning block 2 is installed in the door leaf, so there is no need to adjust the adjustment block 25 after installation. Therefore, in addition to being connected to the outer shell 21 by threads, the adjustment block 25 can be fixedly connected to the outer shell 21 by other means, such as tight fit, snap fit, welding, etc. Figure 5 As shown, the regulating block 25 is a rubber plug cover, and the regulating block 25 is blocked in the upper end opening 213 of the outer shell 21 by interference fit or adhesive connection with the upper end of the barrel side wall 211 .

Claims

1. A door positioner assembly, comprising a positioning block and a base adapted for use with the positioning block, wherein the base is provided with a first magnetic element; characterized in that: The positioning block includes an outer shell and a positioning column movably placed in the outer shell, the outer shell is in the shape of a barrel and includes a barrel side wall and a shell cavity defined by the barrel side wall, and the upper end of the outer shell is open; the positioning column includes a column, the lower end of the column is provided with a second magnetic element that can adapt to the first magnetic element to generate magnetic force, the column can be inserted into the shell cavity through the upper end opening of the outer shell, and the column can extend downward from the shell cavity; it also includes an elastic reset device provided in the shell cavity, in a natural state, the elastic reset device can overcome the weight of the positioning column and the second magnetic element and drive the positioning column to retract upward into the shell cavity; when the positioning block moves to allow the second magnetic element to approach the first magnetic element, the second magnetic element and the first magnetic element generate mutual magnetic attraction. When in use, the column extends out of the shell cavity to allow the first magnetic element and the second magnetic element to be attracted to each other, thereby achieving magnetic attraction and positioning between the positioning block and the base; the outer shell is barrel-shaped and also includes a barrel bottom wall connected to the barrel side wall, the barrel side wall and the barrel bottom wall jointly define the shell cavity, and the barrel bottom wall is provided with a bottom wall through hole connected to the shell cavity, and the column can pass through the bottom wall through hole; the positioning column is T-shaped and also includes a convex edge integrally formed at the upper end of the column and extending radially, the diameter of the convex edge is larger than the diameter of the bottom wall through hole but smaller than the diameter of the upper end opening of the outer shell; the elastic reset device is a spring, and the spring is arranged between the barrel bottom wall and the convex edge; it also includes a cylindrical adjustment block arranged in the shell cavity, the adjustment block is located above the column and is used to block the upper end opening of the outer shell.

2. The door positioner assembly according to claim 1, characterized in that: The adjusting block is provided with an external thread, and the upper end of the outer shell barrel side wall is provided with an internal thread matching the external thread. The adjusting block is installed on the barrel side wall in an adjustable manner through the matching height of the external thread and the internal thread, thereby blocking the upper end opening of the outer shell.

3. The door positioner assembly according to claim 2, characterized in that: A driving coupling portion for receiving an external driving force is also provided on the outer end surface of the adjusting block so as to facilitate driving the adjusting block to move spirally.

4. The door positioner assembly according to claim 1, characterized in that: The adjusting block is bonded and mounted on the barrel side wall so as to block the upper end opening of the outer shell.

5. The door positioner assembly according to claim 1, characterized in that: The retracted head of the second magnetic element is installed in the column, and there is a height difference between the lower end surface of the second magnetic element and the lower end surface of the column. The lower end surface of the column does not completely enclose the second magnetic element, so that at least part of the second magnetic element is exposed.

6. The door positioner assembly according to any one of claims 1 to 5, characterized in that: A positioning plate is provided on the outer shell, and a mounting through hole is provided on the positioning plate.

7. The door positioner assembly according to any one of claims 1 to 5, characterized in that: A vertically arranged blocking wall is provided on the base, the first magnetic element is located in front of the blocking wall and the upper surface of the first magnetic element is lower than the blocking wall, so that when the positioning block moves to allow the second magnetic element to approach the first magnetic element, the column is blocked in front of the blocking wall so that the blocking wall forms a blocking limit for the column in the forward direction.

8. The door positioner assembly according to claim 7, characterized in that: The base is provided with a dustpan-shaped groove, which includes left and right side walls and a bottom wall. The blocking wall is located at the tail end of the groove. The groove is arranged in a direction adapted to the movement of the column. The width of the groove is greater than the outer diameter of the lower end of the column. The first magnetic element is arranged on the bottom wall, so that when the lower end of the column enters the groove, the left and right side walls of the groove can form left and right limits for the column in the left and right directions.

Images