Sealed lifting door

Abstract

The utility model discloses a sealed lift door, which relates to the technical field of lift doors, and comprises a support and a door plate, one side of the support is connected with a second shell, the outer surface of the second shell is provided with an air pump, the air outlet end of the air pump is connected with a one-way valve, and the top of the one-way valve is connected with a metal hose. Through the arrangement of the balancing weight, the metal hose, the air pump, the air bag, the limiting switch, the electromagnetic valve, the one-way valve and the guide roller, the air bag is not expanded in the lifting door opening and closing process, so that abrasion of a sealing piece is reduced, when the lifting door is closed, the limiting switch makes contact with the ground to send out an electric signal, and the air pump is started at the moment; after the air pump is started, air is input into the air bag through the one-way valve, the metal hose and the air inlet pipe in sequence, and therefore the air bag expands to block a gap between the lifting door and the wall to improve sealing performance. The sealing structure is not prone to abrasion so that the service life can be prolonged, and meanwhile the pipeline is automatically tensioned so that damage caused by pipeline winding can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting doors, in particular to a sealed lifting door. Background Art

[0002] Lifting doors are also called industrial lifting doors. They are mainly used in large warehouses, painting workshops, small hangars and other occasions. Compared with traditional rolling doors, rolling doors can only use fixed installation space, while lifting doors can be installed along tracks installed on the ceiling and walls, so that the space can be effectively and reasonably utilized when the door is in operation. The lifting doors adopt a bearing operation mode, which overcomes the problem of high noise when the rolling doors are in operation. At the same time, small doors and windows can be opened on the lifting doors, while there will be a certain noise when the rolling doors are opened and closed, and single-piece rolling doors cannot open small doors.

[0003] Existing lifting doors usually achieve a sealing effect by fitting a rubber sealing gasket to the wall, but the lifting door is a sliding door window. After multiple openings and closings, the sealing gasket on the side of the lifting door is easily worn out, resulting in air leakage, which in turn affects the sealing of the lifting door. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a sealed lifting door to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealed lifting door, comprising a bracket and a door panel, a second shell connected to one side of the bracket, and an air pump installed on the outer surface of the second shell, a one-way valve connected to the air outlet of the air pump, and a metal hose connected to the top of the one-way valve, a counterweight connected to the outer surface of the metal hose, guide rollers passing through both sides of the second shell, an air inlet pipe, a solenoid valve and a limit switch are respectively arranged on the outer surface of the door panel from left to right, and an air outlet pipe is connected to one side of the solenoid valve, and air bags are connected to both sides of the door panel.

[0006] By adopting the above technical scheme, the airbag does not expand during the process of lifting the door and opening and closing, thereby reducing the wear of the sealing component. When the lifting door is closed, the limit switch contacts the ground and sends an electrical signal. At this time, the air pump is turned on. After the air pump is started, air is input into the airbag through the one-way valve, the metal hose and the air inlet pipe in sequence, so that the airbag expands to seal the gap between the lifting door and the wall and improve the sealing performance. Before the lifting door is opened, the solenoid valve opens to discharge part of the air in the airbag through the air outlet pipe, thereby shrinking the airbag. When the lifting door is opened and closed, the counterweight block applies a downward force to the metal hose, so that the metal hose is always in a straight state, avoiding damage caused by knotting, entanglement, etc. At the same time, the guide roller reduces the wear between the metal hose and the second shell, and the guide roller prevents the counterweight block from detaching from the second shell.

[0007] Furthermore, the metal hose is connected to the air inlet pipe through a joint, and the air inlet pipe and the air outlet pipe are both connected to the airbag.

[0008] By adopting the above technical solution, after the air pump is started, air is input into the airbag through the one-way valve, the metal hose and the air inlet pipe in sequence, so that the airbag expands to block the gap between the door panel and the hinge plate and the wall to improve the sealing performance.

[0009] Furthermore, the other side of the bracket is connected to a first shell, and guide rollers penetrate both sides of the first shell, the top of the guide roller is connected to a power cord, and the outer surface of the power cord is connected to a counterweight.

[0010] By adopting the above technical solution, when the door switch is lifted, a downward force is applied to the power cord through the counterweight block, so that the power cord is in a straight state, avoiding damage caused by knotting, entanglement, etc., and at the same time, the wear between the power cord and the first shell is reduced by the guide roller, and the guide roller prevents the counterweight block on the power cord from detaching from the first shell.

[0011] Furthermore, the limit switch and the solenoid valve are both electrically connected to the power line.

[0012] By adopting the above technical solution, the limit switch and the solenoid valve are powered through the power line, and at the same time, the limit switch is convenient for sending an electrical signal to an external control terminal.

[0013] Furthermore, the interior of the bracket is respectively connected to a door panel and a hinge plate, and rollers are connected to both sides of the outer surface of the door panel, and a guide groove is provided on the upper interior of the bracket.

[0014] By adopting the above technical solution, the door panel is guided by the cooperation of multiple rollers and guide grooves, and multiple hinge plates are cooperated to enable the lifting door to bend and deform after opening, so that the lifting door is parallel to the ground after opening.

[0015] Furthermore, the door panels and hinge plates are provided in plurality, and the plurality of door panels and the plurality of hinge plates are distributed in an alternating manner.

[0016] By adopting the above technical solution, a plurality of hinge plates and door panels are staggeredly distributed, so that the lifting door can bend and deform after it is opened, so that the lifting door is parallel to the ground after it is opened.

[0017] Furthermore, there are multiple rollers, and the multiple rollers are mirror-imaged.

[0018] By adopting the above technical solution, the door panel is guided by the cooperation of multiple rollers and guide grooves, so that the lifting door is parallel to the ground after opening.

[0019] Furthermore, a damper and an outer sleeve are respectively connected to the upper back of the bracket, and one end of the damper is connected to a support plate, an inner sleeve is connected to the upper back of the support plate, and springs are connected inside the inner sleeve and the outer sleeve.

[0020] By adopting the above technical solution, when the lifting door is opened, the door panel collides with the resist plate, causing the damper to shrink and absorb the impact force to extend the service life of the lifting door. At the same time, the inner sleeve is retracted into the outer tube and the spring is compressed. After the lifting door is closed, the resist plate, inner sleeve and damper are reset by the spring.

[0021] Furthermore, the inner sleeve is slidably connected to the outer sleeve.

[0022] By adopting the above technical solution, the inner sleeve is retracted into the outer cylinder and the spring is compressed. After the lifting door is closed, the spring drives the abutment plate, the inner sleeve and the damper to reset.

[0023] Furthermore, the abutment plate is slidably connected to the bracket, and the door panel abuts against the abutment plate.

[0024] By adopting the above technical solution, when the lifting door is opened, the door panel collides with the stop plate, causing the damper to contract and absorb the impact force to extend the service life of the lifting door.

[0025] In summary, the utility model mainly has the following beneficial effects:

[0026] The utility model provides a counterweight, a metal hose, an air pump, an airbag, a limit switch, a solenoid valve, a one-way valve and a guide roller. During the process of opening and closing the lifting door, the airbag does not expand, thereby reducing the wear of the sealing component. When the lifting door is closed, the limit switch contacts the ground and sends an electrical signal. At this time, the air pump is turned on. After the air pump is started, air is input into the airbag through the one-way valve, the metal hose and the air inlet pipe in sequence, thereby expanding the airbag to seal the gap between the lifting door and the wall and improve the sealing performance. Before the lifting door is opened, the solenoid valve is opened to discharge part of the air in the airbag through the air outlet pipe, thereby shrinking the airbag. When the lifting door is opened and closed, a downward force is applied to the metal hose through the counterweight, thereby keeping the metal hose in a straight state at all times, thereby avoiding damage caused by knotting, entanglement and the like of the metal hose. At the same time, the wear between the metal hose and the second shell is reduced by the guide roller, and the guide roller prevents the counterweight from detaching from the second shell. The sealing performance is good and the sealing structure is not easy to wear, thereby extending the service life. At the same time, the pipeline is automatically tensioned to reduce the damage caused by pipeline entanglement. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model;

[0028] Figure 2 This is a schematic diagram of the door panel structure of the utility model;

[0029] Figure 3This is a schematic diagram of the cross-sectional structure of the second shell of the utility model;

[0030] Figure 4 This is a schematic diagram of the cross-sectional structure of the first shell of the utility model;

[0031] Figure 5 It is a schematic diagram of the cross-sectional structure of the inner sleeve of the utility model.

[0032] In the figure: 1. bracket; 2. door panel; 3. hinge plate; 4. roller; 5. guide groove; 6. counterweight; 7. first shell; 8. power cord; 9. second shell; 10. metal hose; 11. air inlet pipe; 12. air outlet pipe; 13. air pump; 14. damper; 15. abutment plate; 16. inner sleeve; 17. outer sleeve; 18. spring; 19. airbag; 20. limit switch; 21. solenoid valve; 22. one-way valve; 23. guide roller. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0034] The following describes an embodiment of the utility model based on its overall structure.

[0035] Embodiment 1:

[0036] A sealed lifting door, such as Figure 1-Figure 3 As shown, it includes a bracket 1 and a door panel 2, a second shell 9 is connected to one side of the bracket 1, an air pump 13 is installed on the outer surface of the second shell 9, a one-way valve 22 is connected to the air outlet of the air pump 13, a metal hose 10 is connected to the top of the one-way valve 22, and after the air pump 13 is started, air is input into the airbag 19 through the one-way valve 22, the metal hose 10 and the air inlet pipe 11 in sequence; a counterweight 6 is connected to the outer surface of the metal hose 10, and a downward force is applied to the metal hose 10 through the counterweight 6, so that the metal hose 10 is always in a straight state, avoiding the metal hose 10 from being damaged by knotting, winding, etc.; Guide rollers 23 are passed through both sides of the second shell 9, and the guide rollers 23 reduce the wear between the metal hose 10 and the second shell 9, and the guide rollers 23 prevent the counterweight 6 from detaching from the second shell 9; the outer surface of the door panel 2 is provided with an air inlet pipe 11, a solenoid valve 21 and a limit switch 20 from left to right, the metal hose 10 is connected to the air inlet pipe 11 through a joint, and an air outlet pipe 12 is connected to one side of the solenoid valve 21, and air bags 19 are connected to both sides of the door panel 2, and the air inlet pipe 11 and the air outlet pipe 12 are both connected to the air bags 19. The air bags 19 expand to seal the gaps between the door panel 2 and the hinge plate 3 and the wall to improve the sealing performance.

[0037] See also Figure 1 and Figure 2 In the above embodiment, the bracket 1 is respectively connected to the door panel 2 and the hinge plate 3, and multiple door panels 2 and hinge plates 3 are provided, and multiple door panels 2 and multiple hinge plates 3 are staggered, so that the lifting door can bend when opening and closing; rollers 4 are connected to both sides of the outer surface of the door panel 2, and multiple rollers 4 are provided, and multiple rollers 4 are mirrored. A guide groove 5 is opened on the upper part of the bracket 1 to facilitate guiding the lifting door.

[0038] Embodiment 2:

[0039] On the basis of the above-mentioned embodiment 1, although the lifting door has better sealing performance and the sealing structure is not easy to wear to extend the service life by setting the counterweight block 6, metal hose 10, air pump 13, airbag 19, limit switch 20, solenoid valve 21, one-way valve 22 and guide roller 23, and the pipeline is automatically tightened to reduce the damage caused by pipeline winding; but the limit switch 20 and the solenoid valve 21 both need the power cord 8 to supply energy, and the power cord 8 is also easy to get tangled and entangled when the lifting door is opened and closed; now by setting the counterweight block 6, the first shell 7 and the guide roller 23, it is possible to avoid damage caused by the tangling and entanglement of the power cord 8.

[0040] See also Figure 1 , Figure 2 and Figure 4 In the above embodiment, the other side of the bracket 1 is connected to the first shell 7, and guide rollers 23 are passed through both sides of the first shell 7. The guide rollers 23 reduce the wear between the power cord 8 and the first shell 7, and the guide rollers 23 prevent the counterweight 6 on the power cord 8 from detaching from the first shell 7; the top of the guide roller 23 is connected to the power cord 8, and the limit switch 20 and the solenoid valve 21 are both electrically connected to the power cord 8, which is convenient for supplying energy to the limit switch 20 and the solenoid valve 21; the outer surface of the power cord 8 is connected to the counterweight 6, and when the door switch is lifted, a downward force is applied to the power cord 8 through the counterweight 6, so that the power cord 8 is in a straight state, avoiding damage caused by knotting, entanglement, etc. of the power cord 8.

[0041] Embodiment three:

[0042] On the basis of the above-mentioned embodiment 1, although the lifting door has better sealing performance and the sealing structure is not easy to wear to extend the service life by setting the counterweight block 6, metal hose 10, air pump 13, airbag 19, limit switch 20, solenoid valve 21, one-way valve 22 and guide roller 23, and the pipeline is automatically tightened to reduce the damage caused by pipeline entanglement; but after the door panel 2 is opened and raised, it will collide with the bracket 1 or the roller 4 will collide with the guide groove 5. The impact force generated by the collision is likely to cause damage to the lifting door and affect its service life; now by setting the damper 14, the stop plate 15, the inner sleeve 16, the outer sleeve 17 and the spring 18, it can shrink and absorb the impact force to extend the service life of the lifting door.

[0043] See also Figure 1 and Figure 5 In the above embodiment, the damper 14 and the outer sleeve 17 are respectively connected to the upper back of the bracket 1, and a stop plate 15 is connected to one end of the damper 14. After the lifting door is opened, the door panel 2 collides with the stop plate 15, causing the damper 14 to shrink and absorb the impact force to extend the service life of the lifting door; the stop plate 15 is slidably connected to the bracket 1, and the door panel 2 abuts against the stop plate 15. An inner sleeve 16 is connected to the upper back of the stop plate 15, and the inner sleeve 16 is slidably connected to the outer sleeve 17. A spring 18 is connected inside the inner sleeve 16 and the outer sleeve 17, and the inner sleeve 16 is retracted into the outer tube to compress the spring 18. After the lifting door is closed, the stop plate 15, the inner sleeve 16 and the damper 14 are driven to reset by the spring 18.

[0044] The implementation principle of the utility model is as follows: first, the lifting door is an electric lifting door, and the specific operation mode is the existing technology, so the technical solution is not repeated. During the opening and closing of the lifting door, the airbag 19 is not expanded, thereby reducing the wear of the sealing member. When the lifting door is closed, the limit switch 20 contacts the ground and sends an electrical signal. At this time, the air pump 13 is turned on. After the air pump 13 is started, air is input into the airbag 19 through the one-way valve 22, the metal hose 10 and the air inlet pipe 11 in sequence, so that the airbag 19 is expanded to open the door. The gaps between the plate 2 and the hinge plate 3 and the wall are blocked to improve the sealing performance. Before the lifting door is opened, the solenoid valve 21 is opened to discharge part of the air in the airbag 19 through the air outlet pipe 12, thereby shrinking the airbag 19. After the lifting door is opened, the door plate 2 collides with the abutment plate 15, causing the damper 14 to shrink and absorb the impact force to extend the service life of the lifting door. At the same time, the inner sleeve 16 is retracted into the outer tube and the spring 18 is compressed. After the lifting door is closed, the abutment plate 15, the inner sleeve 16 and the damper 14 are driven to reset by the spring 18;

[0045] When the door is opened or closed, the counterweight 6 applies a downward force to the metal hose 10, so that the metal hose 10 is always in a straight state, avoiding damage caused by knotting, entanglement, etc., and at the same time, the guide roller 23 reduces the wear between the metal hose 10 and the second shell 9, and the guide roller 23 prevents the counterweight 6 from detaching from the second shell 9;

[0046] When the door switch is lifted, a downward force is applied to the power cord 8 through the counterweight 6, so that the power cord 8 is in a straight state, avoiding damage caused by knotting, entanglement, etc., and at the same time, the wear between the power cord 8 and the first shell 7 is reduced by the guide roller 23, and the guide roller 23 prevents the counterweight 6 on the power cord 8 from detaching from the first shell 7.

[0047] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A sealed lifting door, comprising a bracket (1) and a door panel (2), characterized in that: The bracket (1) is connected to a second shell (9) on one side, and an air pump (13) is installed on the outer surface of the second shell (9); the air outlet of the air pump (13) is connected to a one-way valve (22), and the top of the one-way valve (22) is connected to a metal hose (10); the outer surface of the metal hose (10) is connected to a counterweight (6); guide rollers (23) pass through both sides of the second shell (9); an air inlet pipe (11), a solenoid valve (21) and a limit switch (20) are respectively arranged on the outer surface of the door panel (2) from left to right, and an air outlet pipe (12) is connected to one side of the solenoid valve (21); and air bags (19) are connected to both sides of the door panel (2).

2. The sealed lifting door according to claim 1, characterized in that: The metal hose (10) is connected to the air inlet pipe (11) via a joint, and the air inlet pipe (11) and the air outlet pipe (12) are both connected to the air bag (19).

3. The sealed lifting door according to claim 1, characterized in that: The other side of the bracket (1) is connected to a first shell (7), and guide rollers (23) are passed through both sides of the first shell (7), the top of the guide roller (23) is connected to a power line (8), and the outer surface of the power line (8) is connected to a counterweight (6).

4. The sealed lifting door according to claim 3, characterized in that: The limit switch (20) and the solenoid valve (21) are both electrically connected to the power line (8).

5. The sealed lifting door according to claim 1, characterized in that: The bracket (1) is internally connected to a door panel (2) and a hinge plate (3), and rollers (4) are connected to both sides of the outer surface of the door panel (2). A guide groove (5) is provided on the upper part of the bracket (1).

6. The sealed lifting door according to claim 5, characterized in that: The door panels (2) and hinge panels (3) are both provided in plurality, and the plurality of door panels (2) and the plurality of hinge panels (3) are distributed in an alternating manner.

7. The sealed lifting door according to claim 5, characterized in that: A plurality of rollers (4) are provided, and the plurality of rollers (4) are arranged in a mirror-like manner.

8. The sealed lifting door according to claim 1, characterized in that: The upper back of the bracket (1) is respectively connected to a damper (14) and an outer sleeve (17), and one end of the damper (14) is connected to a support plate (15), the upper back of the support plate (15) is connected to an inner sleeve (16), and a spring (18) is connected inside the inner sleeve (16) and the outer sleeve (17).

9. The sealed lifting door according to claim 8, characterized in that: The inner sleeve (16) is slidably connected to the outer sleeve (17).

10. The sealed lifting door according to claim 8, characterized in that: The abutment plate (15) is slidably connected to the bracket (1), and the door panel (2) abuts against the abutment plate (15).

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