A type of direct-lift platform shielding door

Abstract

This invention discloses a direct-lift lifting platform shielding door, relating to the field of shielding door technology. It includes a main assembly box, a rigid chain, a folding door, and a door frame. The rigid chain is located below ground level via the main assembly box, avoiding the occupation of space above. The folding door includes multiple door panels and multiple hinge components that hinge adjacent door panels, with each hinge component slidably connected to at least one door panel. The rigid chain is connected to the uppermost door panel. Each door panel has a insertion hole, a sliding insertion piece that slides into the insertion hole, and a reset component connected to the insertion piece. The main assembly box contains an ejector component for pushing the insertion piece in the clamped door panel upwards. Adjacent door panels are connected in a planar fit when the folding door is unfolded, thus providing good structural stability and isolation from the internal and external environments when unfolded. It also effectively prevents the folding door from folding uncontrollably due to rigid chain failure after unfolding.

Description

Technical Field

[0001] This invention relates to the field of shielding door technology, specifically to a direct-lift lifting platform shielding door. Background Technology

[0002] Currently, vertical lifting platforms typically use a suspended safety shield, where a motor suspends the platform at the top. When the door needs to be opened, the motor activates a winch mechanism to open the door. The winch mechanism is generally a chain or wire rope structure. Over time, the wire rope or chain may break, posing a safety hazard of the door falling. Furthermore, the height of the door after lifting obstructs the loading passage.

[0003] Furthermore, existing suspended folding doors have the disadvantage of poor isolation between internal and external environments due to the gaps that need to be left between the hinged door panels, making them unsuitable for the storage needs of fine materials that are easily blown away, such as powder and down. Summary of the Invention

[0004] The purpose of this invention is to provide a direct-lift platform shielding door to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention provides a direct-mount lifting platform shielding door, comprising a main assembly box, a rigid chain, a folding door, and a door frame. The rigid chain is disposed below the ground via the main assembly box, the door frame is located above the main assembly box, and the folding door is disposed inside the main assembly box. The folding door includes multiple door panels and multiple hinge assemblies that hinge adjacent door panels, wherein the hinge assembly is slidably connected to at least one door panel, and the rigid chain is connected to the uppermost door panel. The door panel is provided with a plug hole, a plug-in component is provided in the plug hole, and a reset component connected to the plug-in component is provided in the door panel. The plug-in component is reset by means of the reset component. The assembly box is equipped with a clamping component for clamping and limiting the door panel, and an ejection component for pushing the connector in the clamped door panel upwards. Adjacent door panels are connected in a planar fit when the folding door is unfolded.

[0006] Furthermore, the rigid chain has a box horizontally disposed within the main assembly for storing the chain links, the bottom of the lowest door panel is hinged to the box of the rigid chain, and the clamping assembly is used to clamp the second door panel adjacent to the lowest door panel; The clamping assembly includes clamping cylinders and clamping plates. Clamping plates are provided on both sides of the box body via clamping cylinders. The clamping plates are vertically arranged, and the bottom of the lowest door panel is offset from the vertical plane that makes the clamping plates on both sides symmetrical.

[0007] Furthermore, the ejection assembly includes a side-push cylinder, a support base, and a lifting column. The support base is slidably mounted on the housing of the rigid chain, the lifting column is mounted on the support base, and the side-push cylinder is mounted inside the assembly box and connected to the support base. The support base, by means of the push of the side-push cylinder, moves the lifting column to the bottom of the second door panel and aligns it with the insertion hole.

[0008] Furthermore, the bottommost door panel is provided with a clearance groove near the top of the second door panel to allow the support base to pass through the clearance groove and support the second door panel.

[0009] Furthermore, the connector is cylindrical with tapered ends, the reset assembly includes a cylindrical spring, the door panel is provided with a spring limiting hole coaxial with the connector hole, the cylindrical spring is disposed in the spring limiting hole, and the bottom of the cylindrical spring is connected to the connector.

[0010] Furthermore, the back of the door panel is provided with a back groove that connects the spring limiting hole and the insertion hole, and a back plate that is fixed to the door panel by screws is provided in the back groove.

[0011] Furthermore, the hinge assembly includes a chain plate and a chain shaft. Two chain shafts are spaced apart at the end of the door panel. One end of the chain plate is provided with a circular hole that is rotatably connected to the chain shaft, and the other end of the chain plate is provided with an elongated hole that is slidably connected to the chain shaft on the adjacent door panel, so as to realize the hinge and sliding connection of the adjacent door panels.

[0012] Furthermore, the uppermost door panel is hinged to a top plate, which is connected to rigid chains on both sides. Both sides of the door frame are provided with guide grooves for the rigid chains to move and for sliding cooperation with the top plate.

[0013] Furthermore, a partition is vertically arranged in the guide groove, and a sliding hole is arranged vertically along the partition. A waist opening is provided on both sides of the top plate, and a waist part is formed between the two waist openings to slide and insert into the sliding hole. The waist part is located on the same straight line as multiple chain plates in the unfolded state of the folding door.

[0014] Furthermore, the top of the assembly box is provided with a box cover, the box cover is provided with a box opening for the door panel to pass through, and the box cover is provided with a recess for the top plate to be embedded.

[0015] The beneficial effects of this invention are: (1) The present invention embeds the rigid chain and folding door under the ground through the general assembly box, thus avoiding the occupation of the space above; (2) The present invention uses a hinge assembly to hinge adjacent door panels with top and bottom planes, and allows the adjacent door panels to slide to adjust the spacing, so as to adapt to the need for hinged adjacent door panels with top and bottom planes and to fit together when the folding door is unfolded, thereby enhancing the structural stability of the folding door when unfolded and the isolation effect on the internal and external environment. (3) By setting plug holes, plug parts and reset components on the door panel, and setting clamping components and lifting components in the general assembly box, the present invention can realize that after the folding door is unfolded, adjacent door panels can be connected by plug parts and restricted to the same plane. Combined with the design that the top and bottom of the door panel are flat, it can effectively avoid the situation where multiple door panels fall and fold uncontrollably due to the failure of the rigid chain after the folding door is unfolded. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the rigid chain structure of the present invention; Figure 3 This is a schematic diagram of the clamping assembly of the present invention; Figure 4 This is a schematic diagram of the ejection assembly of the present invention; Figure 5 This is a schematic diagram of the structure of the box lid of the present invention; Figure 6 This is a schematic diagram of the top plate of the present invention; Figure 7 This is a schematic diagram of the door frame structure of the present invention; Figure 8 This is a bottom view of the door frame of the present invention; Figure 9 This is a schematic diagram of the hinge assembly of the present invention; Figure 10 This is a schematic diagram of the structure of the reset component of the present invention; Figure 11 for Figure 10 Detailed view of a section at point A.

[0018] The numbers on the map are: 1-General assembly box; 2-Rigid chain; 3-Folding door; 4-Door frame; 5-Interlocking hole; 6-Interlocking component; 7-Reset assembly; 8-Clamping assembly; 9-Ejection assembly; 10-Leaning groove; 11-Spring limiting hole; 12-Back groove; 13-Back plate; 14-Round hole; 15-Elongated hole; 16-Top plate; 17-Guide groove; 18-Partition; 19-Sliding hole; 20-Waist opening; 21-Waist section; 22-Box lid; 23-Box opening; 24-Sunken groove; 301 - Door panel; 302 - Hinge assembly; 3021 - Chain plate; 3022 - Chain shaft; 801 - Clamping cylinder; 802 - Clamping plate; 901-Side push cylinder; 902-Support base; 903-Lifting column. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] like Figures 1 to 11 As shown, a direct-mounted lifting platform shielding door includes a main assembly box 1, a rigid chain 2, a folding door 3, and a door frame 4. The rigid chain 2 is installed below the ground through the main assembly box 1, the door frame 4 is located above the main assembly box 1, and the folding door 3 is installed inside the main assembly box 1. The folding door 3 includes multiple door panels 301 and multiple hinge components 302 that hinge adjacent door panels 301, and the hinge components 302 are slidably connected to at least one door panel 301, and the rigid chain 2 is connected to the uppermost door panel 301. The door panel 301 is provided with a plug hole 5, a plug-in component 6 is provided in the plug hole 5, and a reset component 7 connected to the plug-in component 6 is provided in the door panel 301. The plug-in component 6 is reset by means of the reset component 7. The main assembly box 1 is provided with a clamping component 8 for clamping and limiting the door panel 301, and the main assembly box 1 is provided with an ejection component 9 for pushing the plug 6 in the clamped door panel 301 upward. When the folding door 3 is unfolded, the adjacent door panels 301 are connected in a plane, that is, the top and bottom of the door panel 301 are planes, and when the folding door 3 is unfolded, the top and bottom planes of the door panel 301 are horizontal.

[0021] Specifically, the rigid chain 2 drives the uppermost door panel 301 to rise until multiple door panels 301 are fully unfolded on the same plane, with gaps between adjacent door panels 301, to meet the needs of folding and unfolding door panels 301 with planar structures at the top and bottom. Subsequently, the clamping assembly 8 clamps the lower door panel 301, keeping the clamped door panel 301 in a vertical state. As the rigid chain 2 descends, causing multiple door panels 301 to descend sequentially from top to bottom, until multiple door panels 301 except the lowermost door panel 301 are sequentially attached, the ejector assembly 9 ejects the connector 6 in the clamped door panel 301. When the door panel 301 above the clamped door panel 301 descends, the connector 6 in it is lifted by the connector 6 below, and so on, so that multiple door panels 301 are connected by connector 6 to enhance the overall effect of the folding door 3 in the unfolded state. Its advantages are twofold. First, when the rigid chain 2 fails, the multiple door panels 301, with their tops and bottoms being flat and adjacent door panels 301 being limited by the connector 6, can maintain the folding door 3 in the same vertical plane. This helps prevent the multiple door panels 301 from falling and folding uncontrollably when the rigid chain 2 fails, especially in windy outdoor environments. Second, because the tops and bottoms of the door panels 301 are flat and adjacent door panels 301 are limited by the connector 6, the folding door 3, when unfolded, can form a seamless door panel, thereby enhancing the folding door 3's isolation effect from the internal and external environments and making it suitable for a wider range of applications.

[0022] This invention embeds the rigid chain 2 and folding door 3 below the ground using a general assembly box 1, avoiding the occupation of space above. The adjacent door panels 301, which are flat at the top and bottom, are hinged by a hinge assembly 302, allowing the adjacent door panels 301 to slide to adjust the spacing. The multiple door panels 301 that make up the folding door 3 are provided with insertion holes 5, insertion parts 6, and reset components 7. The clamping assembly 8 and lifting assembly are provided in the general assembly box 1, which enables the adjacent door panels 301 to be connected by the insertion parts 6 and restricted to the same plane after the folding door 3 is unfolded. This enhances the structural stability of the folding door 3 when unfolded and the isolation effect on the internal and external environment. At the same time, it can effectively prevent the multiple door panels 301 from falling and folding uncontrollably due to the failure of the rigid chain 2 after the folding door 3 is unfolded.

[0023] Preferably, the connector 6 is a cylindrical structure with tapered ends and is made of alloy steel to improve its bending resistance and facilitate insertion into the insertion hole 5 of the adjacent door panel 301. The reset assembly 7 is preferably a cylindrical spring. A spring limiting hole 11, coaxial with the insertion hole 5, is provided in the door panel 301. The cylindrical spring is limited within the spring limiting hole 11, and its bottom is connected to the connector 6. Thus, while the cylindrical spring resets the connector 6, the spring limiting hole 11 limits the spring, preventing the connector 6 from inserting into the insertion hole 5 of the lower door panel 301 and thus preventing the folding door 3 from folding. Regarding the method of disassembling and assembling the cylindrical spring, the structure of the door panel 301 can be optimized. Specifically, a back groove 12 that connects the spring limiting hole 11 and the insertion hole 5 can be provided on the back of the door panel 301 to install the cylindrical spring. The back plate 13 is installed in the back groove 12 by means of screws, etc., to close the spring limiting hole 11 and the insertion hole 5.

[0024] The rigid chain 2 has a box for storing the chain links, which is horizontally arranged in the main assembly box 1. The bottom of the bottom door panel 301 is hinged to the box of the rigid chain 2. The clamping assembly 8 is used to clamp the second door panel 301 adjacent to the bottom door panel 301. The clamping assembly 8 includes a clamping cylinder 801 and a clamping plate 802. The clamping plates 802 are provided on both sides of the box body of the general assembly 1 through the clamping cylinder 801. The clamping plates 802 are vertically arranged, and the bottom of the bottom door panel 301 is offset from the vertical plane that makes the clamping plates 802 on both sides symmetrical.

[0025] When the folding door 3 is unfolded, the bottom door panel 301 is tilted. When the rigid chain 2 drives the folding door 3 to descend, the second door panel 301 can fold under its own weight under the guidance of the bottom door panel 301. The second door panel 301 tilts during the folding process, thereby driving the door panel 301 above it to fold. This process is repeated to achieve the folding of the folding door 3.

[0026] When the folding door 3 is unfolded, the clamping cylinder 801 drives the clamping plate 802 to clamp the second door panel 301, keeping the second door panel 301 vertical. This ensures that when multiple door panels 301 are stacked vertically, they remain vertical with the second door panel 301 as a reference. Furthermore, it ensures that the connector 6 in the second door panel 301 can be accurately inserted into the connector hole 5 in the door panel 301 above it. Similarly, multiple door panels 301 can be interconnected via the connector 6, thus providing a foundation for good stability after the folding door 3 is unfolded.

[0027] The ejection assembly 9 includes a side-push cylinder 901, a support base 902, and a lifting column 903. The support base 902 is slidably mounted on the housing of the rigid chain 2, and the lifting column 903 is mounted on the support base 902. The side-push cylinder 901 is mounted inside the main assembly 1 and connected to the support base 902. The support base 902, with the help of the side-push cylinder 901, moves the lifting column 903 to below the second door panel 301 and aligns it with the insertion hole 5.

[0028] Furthermore, a clearance groove 10 is provided on the top of the lowest door panel 301 near the second door panel 301 to allow the support base 902 to pass through the clearance groove 10 and support the second door panel 301, thereby enabling the support base 902 to support the folding door 3. However, by optimizing the hinge assembly 302 connecting the lowest door panel 301 and the second door panel 301, the distance between the second door panel 301 and the lowest door panel 301 can be extended, preventing the lowest door panel 301 from obstructing the support base 902's support of the second door panel 301 when tilted, and also preventing the lifting column 903 from inserting into the insertion hole 5 of the second door panel 301. However, since the bottom door panel 301 always needs to be kept tilted while the second door panel 301 is in a horizontal state, the second door panel 301 will tilt. If the bottom door panel 301 is in a horizontal state and the second door panel 301 is not tilted, the folding door 3 cannot be folded. The bottom door panel 301 will always block the bottom of the second door panel 301, and the bottom of the second door panel 301 cannot be fully supported on the base 902, which is not conducive to the support of the base 902 for the second door panel 301.

[0029] The hinge assembly 302 includes a chain plate 3021 and a chain shaft 3022. Two chain shafts 3022 are spaced apart at the ends of the door panel 301. One end of the chain plate 3021 is provided with a round hole 14 that is rotatably connected to the chain shaft 3022, and the other end of the chain plate 3021 is provided with an elongated hole 15 that is slidably connected to the chain shaft 3022 on the adjacent door panel 301, so as to realize the hinge and sliding connection of the adjacent door panels 301.

[0030] Preferably, the top door panel 301 is hinged to a top plate 16, which is connected to the rigid chains 2 on both sides. Both sides of the door frame 4 are provided with guide grooves 17 for the rigid chains 2 to move and slide with the top plate 16, so as to prevent the folding door 3 from swaying in the front and back direction under the action of wind after it is unfolded. This helps to further protect the rigid chains 2 and the plug-in parts 6, and improves the stability and service life of the folding door 3.

[0031] Furthermore, a partition 18 is vertically arranged inside the guide groove 17, and a sliding hole 19 is vertically arranged on the upper edge of the partition 18. A waist opening 20 is provided on both sides of the top plate 16, and a waist part 21 is formed between the two waist openings 20 to slide and insert into the sliding hole 19. The waist part 21 is located on the same straight line as the multiple chain plates 3021 in the unfolded state of the folding door 3. This is not only aesthetically pleasing, but also allows for limiting the door panel 301 in the direction on both sides of the folding door 3, further protecting the rigid chain 2.

[0032] The top of the main assembly container 1 is provided with a cover 22, and the cover 22 is provided with a box opening 23 for the door panel 301 to pass through. The cover 22 is also provided with a recess 24 for the top plate 16 to be embedded, so that when the folding door 3 is folded, the top of the main assembly container 1 can form a flat surface, which facilitates the passage of vehicles and personnel.

[0033] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A direct-lift lifting platform shielding door, characterized in that, It includes a general assembly box (1), a rigid chain (2), a folding door (3) and a door frame (4). The rigid chain (2) is installed below the ground through the general assembly box (1), the door frame (4) is located above the general assembly box (1), and the folding door (3) is installed inside the general assembly box (1). The folding door (3) includes multiple door panels (301) and multiple hinge components (302) that hinge adjacent door panels (301), and the hinge components (302) are slidably connected to at least one door panel (301), and the rigid chain (2) is connected to the uppermost door panel (301). The door panel (301) is provided with a plug hole (5), a plug-in component (6) is provided in the plug hole (5), and a reset component (7) connected to the plug-in component (6) is provided in the door panel (301). The plug-in component (6) is reset by means of the reset component (7). The assembly box (1) is provided with a clamping assembly (8) for clamping and limiting the door panel (301), and the assembly box (1) is provided with an ejection assembly (9) for pushing the plug (6) in the clamped door panel (301) upward, and the adjacent door panels (301) are connected in a flat fit when the folding door (3) is unfolded; The ejection assembly (9) includes a side-push cylinder (901), a support base (902), and a lifting column (903). The support base (902) is slidably mounted on the housing of the rigid chain (2). The lifting column (903) is mounted on the support base (902). The side-push cylinder (901) is located inside the assembly box (1) and connected to the support base (902). The support base (902) moves the lifting column (903) to below the second door panel (301) and aligns it with the insertion hole (5) by means of the push of the side-push cylinder (901).

2. The direct-lift lifting platform shielding door according to claim 1, characterized in that, The rigid chain (2) has a box for storing the chain links, which is horizontally arranged in the main box (1). The bottom of the lowermost door panel (301) is hinged to the box of the rigid chain (2). The clamping assembly (8) is used to clamp the second door panel (301) adjacent to the lowermost door panel (301). The clamping assembly (8) includes a clamping cylinder (801) and a clamping plate (802). The clamping plates (802) are provided on both sides of the box body of the general assembly box (1) through the clamping cylinder (801). The clamping plates (802) are arranged vertically, and the bottom of the bottom door panel (301) is offset from the vertical plane that makes the clamping plates (802) on both sides symmetrical.

3. A direct-lift lifting platform shielding door according to claim 1, characterized in that, The bottommost door panel (301) is provided with a clearance groove (10) near the top of the second door panel (301) to make way for the support base (902), so that the support base (902) can pass through the clearance groove (10) to support the second door panel (301).

4. A direct-lift lifting platform shielding door according to claim 1, characterized in that, The connector (6) is cylindrical with tapered ends. The reset assembly (7) includes a cylindrical spring connected to the connector (6). The door panel (301) is provided with a spring limiting hole (11) coaxial with the connector (5). The cylindrical spring is disposed in the spring limiting hole (11).

5. A direct-lift lifting platform shielding door according to claim 4, characterized in that, The back of the door panel (301) is provided with a back groove (12) that connects the spring limiting hole (11) and the insertion hole (5), and a back plate (13) that is fixed to the door panel (301) by screws is provided in the back groove (12).

6. A direct-lift lifting platform shielding door according to claim 1, characterized in that, The hinge assembly (302) includes a chain plate (3021) and a chain shaft (3022). Two chain shafts (3022) are spaced apart at the ends of the door panel (301). One end of the chain plate (3021) is provided with a circular hole (14) that is rotatably connected to the chain shaft (3022), and the other end of the chain plate (3021) is provided with an elongated hole (15) that is slidably connected to the chain shaft (3022) on the adjacent door panel (301), so as to realize the hinge and sliding connection of the adjacent door panels (301).

7. A direct-lift lifting platform shielding door according to claim 1, characterized in that, The topmost door panel (301) is hinged to a top plate (16), which is connected to rigid chains (2) on both sides. Both sides of the door frame (4) are provided with guide grooves (17) for the rigid chains (2) to move and for sliding with the top plate (16).

8. A direct-lift lifting platform shielding door according to claim 7, characterized in that, A partition (18) is vertically arranged inside the guide groove (17). A sliding hole (19) is vertically arranged on the upper edge of the partition (18). A waist opening (20) is provided on both sides of the top plate (16). A waist part (21) is formed between the two waist openings (20) and slides into the sliding hole (19). The waist part (21) and multiple chain plates (3021) in the unfolded state of the folding door (3) are located on the same straight line.

9. A direct-lift lifting platform shielding door according to claim 8, characterized in that, The top of the assembly box (1) is provided with a box cover (22), the box cover (22) is provided with a box opening (23) for the door panel (301) to pass through, and the box cover (22) is provided with a recess (24) for the top plate (16) to be embedded.

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