A retractable follower and guide device

Abstract

The present invention discloses a retractable follower and guide device, including a base, a magnetic structure is provided at the lower part of the base in the height direction, and a traction rope connection structure for connecting with a traction rope is also provided on the base; and a counterweight is provided on the base, and the counterweight is located above the magnetic structure along the height direction of the base. The base includes a first base, a second base and a third base connected in sequence from bottom to top along the height direction, the magnetic structure is installed on the first base, the counterweight is installed on the second base, and the traction rope connection structure is installed on the third base; the first base and the second base are fixedly connected in a detachable connection manner, and the second base and the third base are fixedly connected in a detachable connection manner; or, the first base, the second base and the third base are an integrally formed structure. The present invention has the characteristics of not easy to shake, good stability, convenient operation and wide application range.

Description

Technical Field

[0001] The invention relates to the technical field of sunshade hollow glass products, and in particular to a retractable follower and a guide device. Background Art

[0002] Hollow glass blinds, also known as hollow glass built-in blinds, refer to windows that are set face to face and sealed on all sides with blinds that can be raised and lowered as needed inside two glasses (inner glass and outer glass, also called front glass and rear glass) that are sealed on all sides. They belong to the category of sunshade hollow glass products. There are two types of control methods for hollow glass built-in blinds: one is single-handle control; the other is double-handle control. Single-handle control refers to the cooperation of an external controller and an internal controller to realize the flipping of the blinds and the lifting and lowering of the blinds. Double-handle control refers to the control of the flipping of the blinds and the lifting and lowering of the blinds by two internal controllers and two external controllers.

[0003] In the prior art, the lifting of the venetian blind is controlled by an inner controller and an outer controller, wherein the inner controller includes a magnetic iron traction inner slider, the upper end of which is connected to a traction rope, and a counterweight is fixed to the lower end of the magnetic iron traction inner slider. Since a counterweight block is added below the inner slider pulled by the magnetic iron, not only is lifting less labor-intensive, but large-sized and heavy venetian blinds with large size and heavy weight can be opened without increasing the number of original magnetic iron blocks or increasing the volume of the magnetic iron; however, the inner operator of this structure also has the following problems: the counterweight block is arranged below the inner slider pulled by the magnetic iron, and such a design has the disadvantage of easy shaking and poor stability; in addition, the counterweight block is below the inner slider pulled by the magnetic iron, so that the inner slider pulled by the magnetic iron cannot be pulled down to the bottom of the blinds. Since the external operator needs to be used in conjunction with the inner slider pulled by the magnetic iron, the external operator is placed at a higher position on the inner glass. When the installation position of the blinds is too high, users with taller height are required to operate the external operator, which limits the use of users with shorter height, especially it is not suitable for children, and has the disadvantages of cumbersome operation and narrow scope of application. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a retractable follower, which has the characteristics of being not easy to shake, having good stability, being easy to operate and having a wide range of applications.

[0005] A second object of the present invention is to provide a guiding device including the above-mentioned retracting follower, which has a better limiting effect and can avoid the entanglement of the traction rope.

[0006] One of the purposes of the present invention is achieved by the following technical solution:

[0007] A retractable follower comprises a base, a magnetic structure is provided at the lower part of the base in the height direction, and a traction rope connection structure for connecting with a traction rope is also provided on the base; it is characterized in that it also comprises a counterweight block, the counterweight block is arranged on the base, and the counterweight block is located above the magnetic structure along the height direction of the base.

[0008] In an optional embodiment, the base includes a first base, a second base and a third base connected in sequence from bottom to top along the height direction, the magnetic attraction structure is installed on the first base, the counterweight block is installed on the second base, and the traction rope connection structure is installed on the third base; the first base and the second base are fixedly connected in a detachable manner, and the second base and the third base are fixedly connected in a detachable manner; or, the first base, the second base and the third base are an integrally formed structure.

[0009] In an optional embodiment, the second base includes a second lower base and a second upper base, the lower end of the counterweight block is fixedly connected to the upper end of the second lower base in a detachable manner, and the upper end of the counterweight block is fixedly connected to the lower end of the second upper base in a detachable manner.

[0010] In an optional embodiment, the lower end of the counterweight block and the upper end of the second lower base are connected by screws and / or snaps, the upper end of the counterweight block and the lower end of the second upper base are connected by screws and / or snaps, the lower end of the second lower base and the upper end of the first base are connected by screws and / or snaps, and the upper end of the second upper base and the lower end of the third base are connected by screws and / or snaps.

[0011] In an optional embodiment, a counterweight installation cavity is provided on the outer surface of the second base, and the counterweight is fixedly installed in the counterweight installation cavity in a detachable manner.

[0012] In an optional embodiment, the traction rope connecting structure includes a traction rope sheave and a traction rope sheave pin; a traction rope sheave cavity with an open top is provided on the third base, and the traction rope sheave is rotatably arranged in the traction rope sheave cavity through the traction rope sheave pin.

[0013] In an optional embodiment, an upper roller mounting cavity is provided on the upper part of the outer side surface of the first base, a lower roller mounting cavity is provided on the lower part of the outer side surface of the first base, and a magnet mounting cavity is provided in the middle part of the outer side surface of the first base; the upper roller is rotatably mounted in the upper roller mounting cavity, the lower roller is rotatably mounted in the lower roller mounting cavity, and the magnetic attraction structure is installed in the magnet mounting cavity; the magnetic attraction structure is a magnet, and an iron sheet mounting cavity is provided on the inner side surface of the first base, one end of the iron sheet mounting cavity is connected to the magnet mounting cavity, and the other end is open; an iron sheet is provided in the iron sheet mounting cavity, and the iron sheet is magnetically attracted to the magnet; A guide member is also provided on the left side or the right side, and the cross-section of the guide member is F-shaped; two convex edges are also symmetrically provided on the left and right inner walls of the magnet mounting cavity, and the convex edges are located adjacent to the iron sheet mounting cavity; at least one partition plate is also provided in the magnet mounting cavity, and the partition plate divides the magnet mounting cavity into more than two magnet mounting areas; the magnet is embedded in each of the magnet mounting areas; the upper roller is hinged in the upper roller mounting cavity through an upper rotating shaft, and the lower roller is hinged in the lower roller mounting cavity through a lower rotating shaft; two through holes are respectively provided on the left and right sides of the upper roller mounting cavity on the base, and two through holes are respectively provided on the left and right sides of the lower roller mounting cavity on the base.

[0014] In an optional implementation, the weight of the counterweight block is greater than or equal to the weight of the venetian blind.

[0015] The second object of the present invention is achieved by adopting the following technical solution:

[0016] A guiding device comprises the retractable follower described in the first purpose of the present invention, and also comprises a guide plate arranged along the height direction of a base, the guide member of the retractable follower is snap-fitted with the guide plate, and the retractable follower can slide along the guide plate in the height direction of the base, and the height of the guide plate is greater than or equal to the stroke length of the retractable follower; the upper part of the guide plate is also provided with a limit member for limiting the sliding of the retractable follower on the guide plate; the limit member comprises a limit member connecting part and an annular stop member, the limit member connecting part is connected to the guide plate, the annular stop member is located directly above the retractable follower, and a traction rope insertion hole for the traction rope to pass through is provided in the middle part of the annular stop member, and the projection area of ​​the traction rope insertion hole on the horizontal plane is smaller than the projection area of ​​the base on the horizontal plane.

[0017] In an optional implementation, the annular stop portion is further provided with a notch for the traction rope to be inserted into.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The counterweight block of the present invention is arranged on the base, and the counterweight block is located above the magnetic structure along the height direction of the base, so it is not easy to shake and has good stability; in addition, the counterweight block is located above the magnetic structure along the height direction of the base, so that the magnetic structure can be pulled down to the bottom of the blinds. Since the external operator and the magnetic structure are used in combination, the placement position of the external operator on the inner glass can be lowered, which is suitable for users with shorter height, especially for children, and has the advantages of easy operation and a wide range of applications.

[0020] 2. The upper part of the guide plate of the guide device of the present invention is also provided with a limiter for limiting the sliding of the retracting follower on the guide plate. The middle part of the stopper of the limiter is provided with a traction rope insertion hole for the traction rope to pass through. The projection area of ​​the traction rope insertion hole on the horizontal plane is smaller than the projection area of ​​the base on the horizontal plane, which has a better limiting effect and can avoid the traction rope from being entangled. In addition, the annular stopper is also provided with a notch for the traction rope to be inserted, which has the advantage of easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the retracting follower of Example 1;

[0022] Figure 2 This is a schematic structural diagram of the second upper base of Example 1;

[0023] Figure 3 This is a schematic structural diagram of the second lower base of Example 1;

[0024] Figure 4 It is a structural schematic diagram of the counterweight block of Example 1;

[0025] Figure 5 It is a structural schematic diagram of the traction rope connection structure of Example 1;

[0026] Figure 6 This is a schematic structural diagram of the first base of Example 1;

[0027] Figure 7 is a three-dimensional diagram of the first base of Example 1;

[0028] Figure 8 is a schematic structural diagram of a guide device of Example 2;

[0029] Fig. 9 This is a schematic diagram of the structure of the limiting member of Example 2.

[0030] In the figure: 100, retracting follower; 10, first base; 11, upper roller mounting cavity; 111, upper roller; 12, lower roller mounting cavity; 121, lower roller; 13, magnet mounting cavity; 131, convex edge; 132, partition plate; 14, iron sheet mounting cavity; 141, iron sheet; 15, guide member; 20, second base; 21, second lower base; 22, second upper base; 30, third base; 40, magnetic attraction structure; 50, counterweight; 60, traction rope connecting structure; 61, traction rope pulley; 62, traction rope pulley pin; 200, guide plate; 210, limit member; 211, limit member connecting portion; 212, annular stop portion; 2121, traction rope insertion hole; 2122, notch. DETAILED DESCRIPTION

[0031] Below, in conjunction with the accompanying drawings and specific embodiments, the present invention is further described. It should be noted that, under the premise of no conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form a new embodiment. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. Examples of embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and the limitations of the present application cannot be understood.

[0032] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise precisely and specifically specified.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] Embodiment 1:

[0036] Please refer to Figure 1-7 A retractable follower 100 includes a base, a magnetic structure 40 is provided at the lower part of the base in the height direction, and a traction rope connecting structure 60 for connecting with the traction rope is also provided on the base; it also includes a counterweight block 50, which is arranged on the base, and the counterweight block 50 is located above the magnetic structure 40 along the height direction of the base.

[0037] In a preferred embodiment of the present invention, the base includes a first base 10, a second base 20 and a third base 30 connected in sequence from bottom to top along the height direction, the magnetic attraction structure 40 is installed on the first base 10, the counterweight block 50 is installed on the second base 20, and the traction rope connection structure 60 is installed on the third base 30.

[0038] In a preferred embodiment of the present invention, the first base 10 is fixedly connected to the second base 20 in a detachable manner, and the second base 20 is fixedly connected to the third base 30 in a detachable manner. Preferably, the second base 20 includes a second lower base 21 and a second upper base 22, the lower end of the counterweight 50 is fixedly connected to the upper end of the second lower base 21 in a detachable manner, and the upper end of the counterweight 50 is fixedly connected to the lower end of the second upper base 22 in a detachable manner. This design facilitates the assembly of the counterweight 50 and ensures the stability of the counterweight 50. More preferably, the lower end of the counterweight 50 is connected to the upper end of the second lower base 21 by screw connection and buckle connection, the upper end of the counterweight 50 is connected to the lower end of the second upper base 22 by screw connection and buckle connection, the lower end of the second lower base 21 is connected to the upper end of the first base 10 by buckle connection, and the upper end of the second upper base 22 is connected to the lower end of the third base 30 by buckle connection. The counterweight 50 is an iron block or a lead block. The left and right sides of the counterweight 50 are symmetrically provided with a slot, and correspondingly, the left and right sides of the lower end of the second upper base 22 are symmetrically provided with a block matched with the slot, and the left and right sides of the upper end of the second lower base 21 are symmetrically provided with a block matched with the slot. Designed in this way, it is possible to ensure that the connection stability between the counterweight 50 and the second upper base 22 and the second lower base 21 is further improved.

[0039] In a preferred embodiment of the present invention, the traction rope connecting structure 60 includes a traction rope sheave 61 and a traction rope sheave pin 62; a traction rope sheave cavity with an open top is provided on the third base 30, and the traction rope sheave 61 is rotatably arranged in the traction rope sheave cavity through the traction rope sheave pin 62.

[0040] In a preferred embodiment of the present invention, an upper roller mounting cavity 11 is provided on the upper portion of the outer side surface of the first base 10, a lower roller mounting cavity 12 is provided on the lower portion of the outer side surface of the first base 10, and a magnet mounting cavity 13 is provided in the middle portion of the outer side surface of the first base 10; an upper roller 111 is rotatably mounted in the upper roller mounting cavity 11, a lower roller 121 is rotatably mounted in the lower roller mounting cavity 12, and a magnetic attraction structure 40 is installed in the magnet mounting cavity 13; the magnetic attraction structure 40 is a magnet, and an iron sheet mounting cavity 14 is provided on the inner side surface of the first base 10, one end of the iron sheet mounting cavity 14 is connected to the magnet mounting cavity 13, and the other end thereof is open; an iron sheet 141 is provided in the iron sheet mounting cavity 14, and the iron sheet 141 is magnetically attracted to the magnet; a guide member 15 is also provided on the left side or right side surface of the first base 10, and the cross-section of the guide member 15 is F-shaped. During the installation process, the iron sheet is first installed in the iron sheet installation cavity 14, and then the magnet is installed in the magnet installation cavity 13. The magnet and the iron sheet are magnetically attracted to each other. Since the length of the iron sheet is greater than the length of the magnet installation cavity 13, the iron sheet is tightly attached to the inner wall of the iron sheet installation cavity 14 under the magnetic attraction of the magnet, which is convenient for disassembly and processing and has good connection stability. The inner side surface of the first base 10 specifically refers to the side of the first base 10 facing the inner glass.

[0041] In a preferred embodiment of the present invention, two convex edges 131 are symmetrically arranged on the left and right inner walls of the magnet installation cavity 13, and the convex edges 131 are located adjacent to the iron sheet installation cavity 14; the convex edges 131 can prevent the magnet from entering the iron sheet installation cavity 14, which can further improve stability. At least one partition plate 132 is also arranged in the magnet installation cavity 13, and the partition plate 132 divides the magnet installation cavity 13 into more than two magnet installation areas; a magnet is embedded in each magnet installation area; the partition plate 132 can block the iron sheet 141, and at the same time, divide the magnet installation cavity 13 into two magnet installation areas, which can avoid the magnetic repulsion between multiple magnets. The upper roller 111 is hinged in the upper roller installation cavity 11 through the upper rotating shaft, and the lower roller 121 is hinged in the lower roller installation cavity 12 through the lower rotating shaft; part of the upper roller protrudes from the upper roller installation cavity 11, and part of the lower roller protrudes from the lower roller installation cavity 12. This design can improve the sliding effect. The base is provided with two through holes on the left and right sides of the upper roller installation cavity 11, and the base is provided with two through holes on the left and right sides of the lower roller installation cavity 12. This design can ensure that the strength of the base is not reduced and save raw materials at the same time.

[0042] In a preferred embodiment of the present invention, the weight of the counterweight 50 is greater than or equal to the weight of the venetian blind.

[0043] Example 2

[0044] Reference Figure 8-9 A guiding device comprises the retractable follower 100 of embodiment 1, and further comprises a guide plate 200 arranged along the height direction of a base, the guide member 15 of the retractable follower 100 is engaged with the guide plate 200, and the retractable follower 100 can slide along the guide plate 200 in the height direction of the base, and the height of the guide plate 200 is greater than or equal to the stroke length of the retractable follower 100; a limiter 210 for limiting the sliding of the retractable follower 100 on the guide plate 200 is also arranged on the upper part of the guide plate 200;

[0045] Specifically, the limiter 210 includes a limiter connection portion 211 and an annular stopper 212. The limiter connection portion 211 is connected to the guide plate 200. The annular stopper 212 is located directly above the retracting follower 100. A traction rope insertion hole 2121 is provided in the middle of the annular stopper 212 for the traction rope to pass through. The projection area of ​​the traction rope insertion hole 2121 on the horizontal plane is smaller than the projection area of ​​the base on the horizontal plane. The design of the annular stopper 212 is that when the retracting follower 100 moves to the position of the annular stopper 212, the annular stopper 212 limits the retracting follower 100 from continuing to slide upward on the guide plate 200, so that the limiter has a better limiting effect. Since the traction rope is located in the traction rope insertion hole 2121, the traction rope and the limiter connection portion 211 can be prevented from being entangled.

[0046] In addition, in a preferred embodiment of the present invention, a notch 2122 for the traction rope to be inserted is provided on the annular stopper 212, which has the advantage of convenient installation.

[0047] Embodiment 3:

[0048] The characteristics of this embodiment are: the first base, the second base and the third base are an integrally formed structure; a counterweight installation cavity is provided on the outer surface of the second base, and the counterweight is fixedly installed in the counterweight installation cavity by screw connection or snap connection.

[0049] The rest is the same as Example 1.

[0050] Embodiment 4:

[0051] The characteristics of this embodiment are: the first base and the second lower base are an integrally formed structure, and the second upper base and the third base are an integrally formed structure; the lower end of the counterweight block is snap-connected to the upper end of the second lower base, and the upper end of the counterweight block is snap-connected to the lower end of the second upper base.

[0052] The rest is the same as Example 1.

[0053] Other embodiments:

[0054] The material, size, shape and weight of the counterweight can be adjusted according to actual conditions. Three or more partition plates are also provided in the magnet mounting cavity, and the partition plates divide the magnet mounting cavity into three or more magnet mounting areas. Although only certain components and embodiments of the present application have been illustrated and described, many modifications and changes (e.g., changes in the size, dimensions, structure, shape and proportion of each component, installation arrangement, material use, color, orientation, etc.) can be imagined by those skilled in the art without actually departing from the scope and spirit of the claims.

[0055] Finally, it should be noted that the above-mentioned implementation modes are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention are within the scope of protection required by the present invention.

Claims

1. A guiding device, It is characterized in that The invention comprises a retractable follower, wherein the retractable follower comprises a base, a magnetic structure is provided at the lower part of the base in the height direction, and a traction rope connection structure for connecting with the traction rope is also provided on the base; the invention also comprises a counterweight block, wherein the counterweight block is arranged on the base, and the counterweight block is located above the magnetic structure along the height direction of the base; the base comprises a first base, a second base and a third base which are sequentially connected from bottom to top along the height direction, the magnetic structure is installed on the first base, the counterweight block is installed on the second base, and the traction rope connection structure is provided on the base. The structure is installed on the third base; the first base and the second base are fixedly connected in a detachable manner, and the second base and the third base are fixedly connected in a detachable manner; or, the first base, the second base and the third base are an integrally formed structure; an upper roller mounting cavity is provided on the upper part of the outer side surface of the first base, a lower roller mounting cavity is provided on the lower part of the outer side surface of the first base, and a magnet mounting cavity is provided in the middle part of the outer side surface of the first base; the upper roller is rotatably mounted on the upper roller mounting cavity The lower roller is rotatably mounted in the lower roller mounting cavity, and the magnetic attraction structure is mounted in the magnet mounting cavity; the magnetic attraction structure is a magnet, and an iron sheet mounting cavity is provided on the inner side surface of the first base, one end of the iron sheet mounting cavity is connected to the magnet mounting cavity, and the other end is open; an iron sheet is provided in the iron sheet mounting cavity, and the iron sheet is magnetically attracted to the magnet; a guide member is also provided on the left side or right side surface of the first base, and the cross section of the guide member is F-shaped; the left and right inner side walls of the magnet mounting cavity are also symmetrically provided with There are two convex edges, which are located adjacent to the iron sheet installation cavity; at least one partition plate is also provided in the magnet installation cavity, and the partition plate divides the magnet installation cavity into more than two magnet installation areas; the magnet is embedded in each magnet installation area; the upper roller is hinged in the upper roller installation cavity through an upper rotating shaft, and the lower roller is hinged in the lower roller installation cavity through a lower rotating shaft; two through holes are respectively provided on the left and right sides of the upper roller installation cavity on the base, and two through holes are respectively provided on the left and right sides of the lower roller installation cavity on the base; It also includes a guide plate arranged along the height direction of the base, the guide piece of the retractable follower is snap-fitted with the guide plate, and the retractable follower can slide along the guide plate in the height direction of the base, and the height of the guide plate is greater than or equal to the stroke length of the retractable follower; the upper part of the guide plate is also provided with a limiter for limiting the sliding of the retractable follower on the guide plate; the limiter includes a limiter connecting part and an annular stopper, the limiter connecting part is connected to the guide plate, the annular stopper is located directly above the retractable follower, a traction rope insertion hole for the traction rope to pass through is provided in the middle part of the annular stopper, and the projection area of ​​the traction rope insertion hole on the horizontal plane is smaller than the projection area of ​​the base on the horizontal plane; the annular stopper is also provided with a notch for the traction rope to be inserted; The weight of the counterweight block is greater than or equal to the weight of the venetian blind.

2. The guide device according to claim 1, It is characterized in that The second base includes a second lower base and a second upper base, the lower end of the counterweight block is fixedly connected to the upper end of the second lower base in a detachable manner, and the upper end of the counterweight block is fixedly connected to the lower end of the second upper base in a detachable manner.

3. The guide device according to claim 2, It is characterized in that The lower end of the counterweight block and the upper end of the second lower base are connected by screws and / or snaps, the upper end of the counterweight block and the lower end of the second upper base are connected by screws and / or snaps, the lower end of the second lower base and the upper end of the first base are connected by screws and / or snaps, and the upper end of the second upper base and the lower end of the third base are connected by screws and / or snaps.

4. The guide device according to claim 1, It is characterized in that A counterweight installation cavity is provided on the outer side surface of the second base, and the counterweight is fixedly installed in the counterweight installation cavity in a detachable manner.

5. The guide device according to claim 1, It is characterized in that The traction rope connection structure includes a traction rope sheave and a traction rope sheave pin; a traction rope sheave cavity with an open top is provided on the third base, and the traction rope sheave is rotatably arranged in the traction rope sheave cavity through the traction rope sheave pin.

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