A multi-stage anti-impact device and friction anti-sway system

Abstract

The invention relates to the technical field of suspended sliding doors, and discloses a multi-stage anti-impact device and a friction anti-sway system, comprising an outer support, an inner support, an anti-sway wheel, a long plate, a short plate, a clamping piece and an adjusting bolt; the curvature of the long plate and the short plate is adjusted by the adjusting bolt so that the anti-sway wheel contacts the ground or a door guide rail, so that when the suspended sliding door is hit, the anti-sway wheel is subjected to friction; when the suspended sliding door is hit slightly, the long plate and the short plate act together as a shock absorbing device to achieve an anti-impact effect; when the suspended sliding door is hit strongly, the free end of the long plate is quickly clamped by the clamping piece, and at this time only the long plate is used for the anti-impact effect; the problem of the existing multi-stage anti-sway technology of suspended sliding doors under different impact forces when they are hit strongly or weakly is solved.

Description

Technical Field

[0001] The invention relates to the technical field of suspended sliding doors, and in particular to a multi-stage anti-impact device and a friction anti-sway system. Background Art

[0002] The shaking of sliding doors used in homes can be divided into two categories: one is strong shaking, which is mainly caused by: footballs, basketballs, toy cars, etc. hitting the door violently. The shaking caused by this kind of impact is strong but short-lived; the other is weak shaking, which is mainly caused by: children hitting the door and swinging in the wind. The characteristics of this kind of shaking are that it is not strong, but continuous and regular.

[0003] Chinese invention patent 202110923237.7 discloses an anti-sway device for the lower rail of a suspended sliding door, including a pulley assembly and an anti-sway assembly, wherein the pulley assembly is located at the bottom of the door leaf, and the anti-sway assembly is located below the pulley assembly, wherein the pulley assembly includes a wheel seat and a roller, wherein the wheel seat is connected to the door leaf, and the roller is fixed in the wheel seat, wherein the door leaf can move in the horizontal direction using the roller, wherein the anti-sway assembly includes a guide seat and an elastic auxiliary component, wherein the elastic auxiliary component is located in the guide seat, wherein both sides of the lower part of the roller are in contact with the guide seat, wherein the guide seat can clamp both sides of the roller and prevent the door leaf from shaking in the front and rear directions, wherein the elastic auxiliary component is in elastic contact with the bottom of the roller, and wherein the elastic auxiliary component can lift up the roller and the door leaf. This invention can not only greatly reduce the shaking amplitude of the door leaf, but also ensure the smooth sliding of the door leaf, and has good practicality.

[0004] Chinese invention patent CN201610679782.5 discloses a lower positioning adjustable pulley group for a suspended sliding door, characterized in that it includes a bracket, a wheel fixing frame, a roller and a spring, wherein the roller is mounted on the wheel fixing frame; an opening is provided at the bottom of the bracket, the wheel fixing frame is built into the bracket, and the roller on the wheel fixing frame extends downward from the opening; both ends of the spring are fixedly connected to the wheel fixing frame and the bracket respectively; one or more sliding shafts are provided on both sides of the wheel fixing frame, and a slide groove is correspondingly provided on the bracket, and the roller follows the wheel fixing frame to move up and down in the slide groove through the sliding shaft. This invention can position the suspended sliding door on the ground without installing a guide rail, which can prevent wind swing and can be pushed flexibly.

[0005] Chinese invention patent CN201710026594.7 discloses a suspended sliding door system, characterized in that it includes a track, a door, a swing-stop sliding device and a lower pulley assembly device, the upper end of the door is suspended on the track through the swing-stop sliding device, and the lower end of the door is against the ground / the track on the ground through the lower pulley assembly device; the swing-stop sliding device includes a swing-stop wheel left-right adjustment mechanism and more than two swing-stop wheels, and the swing-stop wheel is adjusted to the left and right inner sides of the track through the swing-stop wheel left-right adjustment mechanism to prevent the door from swinging during the sliding process.

[0006] The above invention fails to solve the existing multi-stage anti-sway technology problem of the hanging sliding door under different impact forces when the strong or weak shaking occurs.

[0007] In view of this, a multi-stage anti-impact device and a friction anti-sway system are needed. Summary of the invention

[0008] In order to solve the above-mentioned problems of the prior art, the present invention provides a multi-stage anti-impact device and a friction anti-sway system, which aims to solve the existing multi-stage anti-sway technical problems of suspended sliding doors under different impact forces when there are strong or weak shaking.

[0009] In order to achieve the above technical objectives, the technical solution adopted by the present invention is:

[0010] The present invention discloses a multi-stage anti-impact device, comprising an outer support, an inner support, a balance wheel, a long plate, a short plate, a clamping member and an adjusting bolt; the outer support and the inner support are both hollow structures with an opening at the bottom; the long plate and the short plate are both concave arc-shaped elastic plates; the long plate comprises a fixed end and a free end; the short plate comprises a contact end and an adjusting end; the outer support is supported on the inner support by the long plate and the short plate; the balance wheel is arranged in the hollow cavity of the inner support, and is used for the balance wheel to contact the ground The outer circular arcs of the long plate and the short plate are in contact with the upper top of the inner support, so as to apply pressure to the inner support through the long plate and the short plate, so that the anti-swing wheel contacts the ground or the door guide rail.

[0011] As a further optimization of the solution, the length ratio of the long plate to the short plate is 1.5-2.

[0012] As a further optimization of the solution, the ends of the fixed end and the contact end are both vertical plate structures, so that the fixed end and the contact end are in surface contact.

[0013] As a further optimization of the solution, the end of the adjusting end is a vertical plate structure, which is used for the adjusting end to be in surface contact with the tail end of the adjusting bolt.

[0014] As a further optimization of the solution, a limiting structure is provided at the end of the contact end, and the limiting structure is a groove with ears on both sides; the outer support member is provided with an ear groove matching with the ear, so as to limit the movement of the contact end; the free end is arranged in the groove, so as to limit the movement of the free end.

[0015] As a further optimization of the solution, the long plate pieces and the short plate pieces are made of steel.

[0016] As a further optimization of the solution, the long plate pieces and the short plate pieces are sheet metal parts.

[0017] As a further optimization of the solution, both sides of the clamping member are composed of a plurality of wavy buckles, with an arc-shaped spring sheet in the middle.

[0018] As a further optimization of the solution, the inner support member is provided with a limiting protrusion, and the outer support member is provided with a waist-shaped hole matched with the limiting protrusion, so as to limit the left and right movement of the inner support member.

[0019] As a further optimization of the solution, the clamping part is an integral sheet metal part formed by cutting and stamping.

[0020] As a further optimization of the solution, the curvatures on both sides of the buckle are different, the curvature on one side of the fixed end of the buckle is small, and the curvature on the other side is large; when the sliding door is hit, the long plate can be quickly clipped into the slot between the buckles, and after the impact force disappears, the long plate can smoothly withdraw from the slot.

[0021] As a further optimization of the solution, a threaded hole cooperating with an adjusting bolt is opened on one side of the outer support box body, so as to adjust the deformation of the long plate and the short plate through the adjusting bolt;

[0022] By utilizing the friction anti-sway system of the multi-stage anti-impact device, the curvature of the long plate and the short plate is adjusted through the adjusting bolt, so that the anti-sway wheel contacts the ground or the door guide rail, and is used to act on the anti-sway wheel with friction when the overhead sliding door is hit; when the overhead sliding door is hit slightly, a slow movement displacement occurs, and the long plate and the short plate act together as shock absorbing devices to achieve an anti-impact effect; when the overhead sliding door is hit strongly, a rapid movement displacement occurs, and the free end of the long plate is quickly clamped by the clamping piece, and at this time only the long plate is used for anti-impact.

[0023] The beneficial effects of adopting the above technical solution are:

[0024] 1. Provide corresponding anti-lateral impact methods for different types of shaking to provide a better user experience.

[0025] 2. It has many advantages such as simple structure, easy operation, reliable operation, stable performance and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a multi-stage anti-shock device;

[0027] Figure 2 A partial schematic diagram of a multi-stage anti-shock device

[0028] Figure 3 This is a schematic diagram of the working state of the second embodiment;

[0029] Figure 4 This is a partial schematic diagram of the working state of the second embodiment;

[0030] Figure 5 It is a schematic diagram of a short board;

[0031] Figure 6 It is a schematic diagram of a clamping member;

[0032] Figure numerals: 1, outer support member, 2, inner support member, 3, anti-balance wheel, 4, long plate, 5, short plate, 6, clamping member, 7, adjusting bolt, 11, inner cavity top, 12, support ear groove, 21, limiting protrusion, 41, fixed end, 42, free end, 51, contact end, 52, adjusting end, 53, support ear, 54, groove, 61, buckle, 62, arc-shaped spring piece. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The shaking of sliding doors used at home can be divided into two categories: one is strong shaking, which is mainly caused by: children accidentally hitting the ball against the door while playing football or basketball indoors, or when children hit the door against a balance car or scooter while playing indoors. The shaking caused by this kind of impact is strong but short-lived. The other is weak shaking, which is mainly caused by: for example, the dad is working in the study, and the 1-3 year old child outside the study wants the dad to play with her, so she keeps hitting the door with her hands. The characteristics of this kind of shaking are that it is not strong, but continuous and regular.

[0035] The reason why the hanging sliding door is prone to shaking is that when the hanging sliding door is installed, there is a distance of about 0.5-2cm between the lower end of the door and the ground. The lower end of the door is in a completely free state, and the weight of the door itself is very large. Some high-quality double-glazed hanging sliding doors can reach 30-40KG. When the door is hit, it will shake greatly.

[0036] The process of the door being impacted is that when the door is subjected to a strong impact force and the anti-impact device is not sufficient to absorb the impact force, the door will tilt sideways or even swing. When the door tilts, the wheels will even leave the ground. After leaving the ground, they are no longer subject to friction, so the anti-swaying effect of the wheels themselves will also fail. The anti-swaying effect of the entire device will fail. Therefore, in order to avoid the failure of the anti-impact device during a strong impact, the device needs to be able to resist strong impacts in addition to being able to resist general impacts.

[0037] The principle of impact resistance is that the door is installed on the outer frame and the anti-balance wheel contacts the ground, then the door will generate friction on the anti-balance wheel. Since the door itself is very heavy, the maximum friction that can be generated is also very large, therefore, it can also resist external impact force.

[0038] like Figure 1-6 As shown, a multi-stage anti-impact device includes an outer support 1, an inner support 2, a stop wheel 3, a long plate 4, a short plate 5, a clamping member 6 and an adjusting bolt 7; the outer support 1 and the inner support 2 are both hollow rectangular structures with an opening at the bottom; the long plate 4 and the short plate 5 are both concave arc-shaped elastic plates; the long plate 4 includes a fixed end 41 and a free end 42; the short plate 5 includes a contact end 51 and an adjusting end 52; the outer support 1 is supported on the inner support 2 by the long plate 4 and the short plate 5; the stop wheel 3 is arranged in the hollow cavity of the inner support 2, so as to be used for the stop wheel 3 to contact the ground or the door guide rail; one side of the outer support 1 box body is provided with a contact end for adjusting The mating threaded holes of the bolts 7 are used to adjust the deformation of the long plate 4 and the short plate 5 by adjusting the bolts 7; the clamping piece 6 is fixedly arranged in the middle of the inner cavity top 11 of the outer support 1; the fixed end 41 of the long plate 4 is fixedly connected to the inner cavity top 11 of the outer support 1, and the free end 42 of the long plate 4 is in contact with and cooperates with the contact end 51 of the short plate 5; the contact end 51 of the short plate 5 is in contact with and cooperates with the clamping piece 6, and the adjusting end 52 of the short plate 5 is in contact with and cooperates with the tail end of the adjusting bolt 7; the outer arcs of the long plate 4 and the short plate 5 are both in contact with the upper top of the inner support 2, and are used to apply pressure to the inner support 2 through the long plate 4 and the short plate 5, so that the anti-sway wheel 3 is in contact with the ground or the door guide rail.

[0039] By utilizing the friction anti-sway system of the multi-stage anti-impact device, the curvature of the long plate 4 and the short plate 5 is adjusted through the adjusting bolt 7, so that the anti-sway wheel 3 contacts the ground or the door guide rail, and is used to apply friction to the anti-sway wheel 3 when the hanging sliding door is hit; when the hanging sliding door is hit slightly, a slow movement displacement occurs, and the long plate 4 and the short plate 5 act together as a shock absorbing device to achieve an anti-impact effect; when the hanging sliding door is hit strongly, a rapid movement displacement occurs, and the free end 42 of the long plate 4 is quickly clamped by the clamping piece 6, and at this time only the long plate 4 is used for anti-impact.

[0040] Embodiment 1

[0041] like Figure 1-2 As shown, a multi-stage anti-impact device of the present invention is installed on the side of the door close to the ground. The door includes an inner frame and an outer frame. A check wheel is installed on the inner frame, and the door is installed on the outer frame. The check wheel can bear a weight of about 60KG.

[0042] The length ratio of the long plate 4 to the short plate 5 is 1.5-2.

[0043] The ends of the fixing end 41 and the contact end 51 are both vertical plate structures, so that the fixing end 41 and the contact end 51 are in surface contact.

[0044] The end of the adjusting end 52 is a vertical plate structure, which is used for the adjusting end 52 to be in surface contact with the tail end of the adjusting bolt 7.

[0045] A limiting structure is provided at the end of the contact end 51, and the limiting structure is a groove 54 with ears 53 on both sides; the outer support member 1 is provided with an ear groove 12 that matches the ear 53 to limit the movement of the contact end 51; the free end 42 is arranged in the groove 54 to limit the movement of the free end 42.

[0046] The long plate 4 and the short plate 5 are made of steel.

[0047] The long plate piece 4 and the short plate piece 5 are sheet metal parts.

[0048] The clamping member 6 is composed of a plurality of wave-shaped buckles 61 on both sides, and an arc-shaped spring piece 62 is in the middle.

[0049] The inner support member 2 is provided with a limiting protrusion 21 , and the outer support member 1 is provided with a waist-shaped hole 13 matched with the limiting protrusion 21 , so as to limit the left and right movement of the inner support member 2 .

[0050] The clamping member 6 is an integral sheet metal member formed by cutting and stamping.

[0051] The curvatures of the two sides of the buckle 61 are different. The curvature of the buckle 61 on one side of the fixed end 41 is small, and the curvature on the other side is large. When the hanging sliding door is hit, the long plate 4 can be quickly inserted into the slot between the buckles 61. After the impact force disappears, the long plate 4 can smoothly withdraw from the slot.

[0052] Embodiment 2

[0053] like Figure 3 , 4 As shown, the multi-stage anti-impact device of the present invention can not only resist impact, but also provide different anti-impact modes according to different types of impact forces.

[0054] When there is a weak continuous impact force such as a child knocking on the door, at this time, the long plate 4 and the short plate 5 together act as a shock absorbing device. At this time, the long plate 4 and the short plate 5 are equivalent to a long spring, which can directly absorb the weak impact force.

[0055] like Figure 2 As shown, when there is a strong impact force such as a balance car or a basketball, under the action of the impact force, one free end of the long plate 4 will be quickly clamped, and at this time, only the long plate 4 plays a role in resisting the impact. The length of the long plate 4 that plays a role becomes smaller, which is equivalent to a smaller elastic coefficient of the long plate 4, and the ability to resist impact becomes stronger.

[0056] Embodiment 3

[0057] like Figure 6 As shown, the two sides of the clamping member 6 are wavy multi-stage buckles 61, and the middle is an arc-shaped spring piece 62. When the door is in a stationary state or subjected to a weak impact force, the two free ends of the long plate 4 and the short plate 5 are above the spring piece 62. When encountering a strong impact force, the free end 42 of the long plate 4 will press the spring piece 62 downward and enter the slot. The purpose of setting the spring piece 62 is to ensure that when the impact comes, the long plate 4 enters the slot in a very smooth manner. The reason why the buckle 61 is set to be wavy instead of serrated is that the wavy setting can have a certain buffering absorption of the impact. The entire buckle module is a sheet metal part, which is formed by cutting and stamping, which is easy to process and saves profiles.

[0058] like Figure 5 As shown, the short plate 5 can be directly processed by sheet metal, saving process costs.

[0059] The length ratio of the long plate 4 to the short plate 5 is 1.5. In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top", "bottom", "inside", "outside", "inner side", "outer side" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the purpose of facilitating the description of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. Among them, "inside" refers to an internal or enclosed area or space. "Periphery" refers to the area around a specific component or a specific area.

[0060] In the description of the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0061] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "assemble" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the description of the embodiments of the present invention, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage anti-shock device, characterized in that: It comprises an outer support member (1), an inner support member (2), a balance wheel (3), a long plate (4), a short plate (5), a clamping member (6) and an adjusting bolt (7); The long plate (4) and the short plate (5) are both concave arc-shaped elastic plates; The long plate (4) comprises a fixed end (41) and a free end (42); The short plate (5) comprises a contact end (51) and an adjustment end (52); The outer support member (1) is supported on the inner support member (2) via a long plate (4) and a short plate (5); The anti-balance wheel (3) is fixed on the inner support member (2); The clamping member (6) is fixedly arranged on the inner cavity top (11) of the outer support member (1); The fixed end (41) of the long plate (4) is fixedly connected to the inner cavity top (11) of the outer support member (1), and the free end (42) of the long plate (4) is in contact with the contact end (51) of the short plate (5); The contact end (51) of the short plate (5) is in contact with the clamping member (6), and the adjustment end (52) of the short plate (5) is in contact with the tail end of the adjustment bolt (7); Both sides of the clamping member (6) are composed of a plurality of wavy buckles (61), and the middle is an arc-shaped spring sheet (62); the clamping member (6) is an integral sheet metal member, formed by cutting and stamping; the two sides of the buckle (61) have different curvatures, the buckle (61) has a smaller curvature on one side of the fixed end (41) and a larger curvature on the other side; when the hanging sliding door is hit, the long plate (4) can be quickly snapped into the slot between the buckles (61), and after the impact force disappears, the long plate (4) can smoothly withdraw from the slot; The curvature of the long plate (4) and the short plate (5) is adjusted by the adjusting bolt (7) so that the anti-swing wheel (3) contacts the ground or the door guide rail, so that when the hanging sliding door is hit, the anti-swing wheel (3) is subjected to friction; when the hanging sliding door is hit slightly, the long plate (4) and the short plate (5) act together as a shock absorbing device to achieve an impact resistance effect; when the hanging sliding door is hit strongly, the free end (42) of the long plate (4) is quickly clamped by the clamping member (6), and at this time, only the long plate (4) is used for impact resistance.

2. A multi-stage anti-shock device according to claim 1, characterized in that: The length ratio of the long plate (4) to the short plate (5) is 1.5-2.

3. A multi-stage anti-shock device according to claim 1, characterized in that: The ends of the fixed end (41) and the contact end (51) are both vertical plate structures, so that the fixed end (41) and the contact end (51) are in surface contact with each other.

4. A multi-stage anti-shock device according to claim 1, characterized in that: The end of the adjusting end (52) is a vertical plate structure, so that the adjusting end (52) and the tail end of the adjusting bolt (7) are in surface contact.

5. A multi-stage anti-shock device according to claim 1 or 3, characterized in that: A limiting structure is provided at the end of the contact end (51), and the limiting structure is a groove (54) with ears (53) on both sides; the outer support member (1) is provided with an ear groove (12) matched with the ear (53) for limiting the movement of the contact end (51); the free end (42) is arranged in the groove (54) for limiting the movement of the free end (42).

6. A multi-stage anti-shock device according to claim 1, characterized in that: The long plate (4) and the short plate (5) are sheet metal parts.

Images