Mute zipper door with automatic sealing mechanism
By setting a rectangular slot and extrusion plate structure in the aluminum alloy bottom beam plate of the silent zipper door, and using the elastic force of the compression spring to clamp the rubber strip, the problem of poor sealing caused by the deviation of the sealing strip due to external force is solved, achieving a more stable sealing effect and reducing friction damage.
Patent Information
- Application Number
- CN202520160579.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing silent zipper doors are prone to misalignment or swaying due to external forces such as wind or airflow when the rubber sealing strip contacts the aluminum alloy bottom beam, resulting in poor sealing.
The design incorporates a rectangular slot within the aluminum alloy base beam plate, which houses the mounting cylinder and compression spring. The curved surfaces of the first and second extrusion plates contact the rubber strip, and the spring force of the compression spring clamps the rubber strip, ensuring that the sealing strip fits tightly against the surface of the base beam.
It effectively prevents the sealing strip from shifting or swinging under external force, ensuring that the sealing performance is not affected, improving the sealing effect and reducing friction damage.
Smart Images

Figure CN223839004U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silent zipper door technology, specifically a silent zipper door with an automatic sealing mechanism. Background Technology
[0002] Silent zipper doors utilize special door structures and materials to reduce friction and impact noise, ensuring a quieter opening and closing process. The automatic sealing mechanism typically includes a sealing strip and an electric control device. When the door closes, the sealing strip automatically engages with the door frame, ensuring a tight seal. In food processing, warehousing, and packaging, the sealing performance of silent zipper doors prevents dust and microorganisms from entering, ensuring product hygiene and safety.
[0003] The prior art discloses a silent zipper door with an automatic sealing mechanism, Chinese Patent No. 202310588863.4. This solution utilizes a screw-type flip-over compression mechanism comprising an internal adjusting screw movably mounted inside an aluminum alloy profile straight rail via a lateral support, a top-mounted control shaft axially fixed to the upper end of the internal adjusting screw, a first internal threaded lifting cylinder and a second internal threaded lifting cylinder threadedly connected to the outside of the internal adjusting screw, a first flip-over connecting rod movably mounted on the outside of the first internal threaded lifting cylinder, a second flip-over connecting rod movably mounted on the outside of the second internal threaded lifting cylinder, and a movable... An internal extrusion plate is mounted on the outside of the first and second flipping connecting rods. The internal adjusting screw rotates to drive the first and second internal thread lifting cylinders to rise and fall in opposite directions, thereby causing the first and second flipping connecting rods to flip. The flipping of the first and second flipping connecting rods controls the inward and outward translation of the internal extrusion plate. When extruding outward, it can control the flexible roller shutter mechanism to fit against the inner wall of the aluminum alloy profile straight rail, improving the sealing and shock absorption of the assembly surface. Rubber sealing strips are fixed on the inner wall of the outer side of the aluminum alloy profile straight rail and the upper and lower side walls of the aluminum alloy profile bottom beam.
[0004] However, in this solution, a screw-type extrusion mechanism is installed inside the aluminum alloy profile straight rail to improve the sealing of the flexible roller blind assembly. This mechanism can improve the fit of the two sides of the roller blind when closed and seal the roller blind assembly inside the aluminum alloy profile straight rail. Since the lower end of the curtain is equipped with a rubber sealing strip, when the rubber sealing strip contacts the top of the aluminum alloy bottom beam plate during the unfolding process, it is subject to external forces such as wind and air flow, causing it to shift or swing. The unfixed position of the sealing strip makes it unable to completely and tightly fit the bottom beam surface, resulting in a poor seal. Utility Model Content
[0005] The purpose of this invention is to provide a silent zipper door with an automatic sealing mechanism to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a silent zipper door with an automatic sealing mechanism, comprising a zipper door mechanism and a sealing assembly. The sealing assembly includes an aluminum alloy bottom beam plate, the interior of which is provided with a rectangular slot and an installation through hole. A fixing cylinder is installed inside the installation through hole, and a compression spring is provided inside the fixing cylinder. A piston ring plate is installed at one end of the compression spring. The piston ring plate moves telescopically inside the fixing cylinder. A telescopic rod is installed at one end of the piston ring plate, and a first extrusion plate and a second extrusion plate are fixedly installed at one end of the telescopic rod.
[0007] As a further preferred embodiment of this technical solution, the first extrusion plate and the second extrusion plate are disposed inside the rectangular groove of the aluminum alloy bottom beam plate.
[0008] As a further preferred embodiment of this technical solution, the surfaces of the first extrusion plate and the second extrusion plate are in contact with both sides of the rubber strip, and the rubber strip is inside the rectangular groove of the aluminum alloy bottom beam plate, and a clamping plate is installed inside the rectangular groove of the aluminum alloy bottom beam plate.
[0009] As a further preferred embodiment of this technical solution, the card plate is engaged with the lower end of the metal bar, the lower end of the metal bar has a slot, and the upper end of the metal bar is installed at the lower end of the rubber strip.
[0010] As a further preferred embodiment of this technical solution, the first extrusion plate and the second extrusion plate are curved metal structures, the two sides of the metal bar are curved metal structures, and the upper end of the rubber strip is fixedly installed on the lower end of the counterweight bag.
[0011] As a further preferred embodiment of this technical solution, the zipper door mechanism includes an aluminum alloy guide rail, a door curtain is provided on one side of the aluminum alloy guide rail, and a counterweight cloth bag is installed at the lower end of the door curtain.
[0012] As a further preferred embodiment of this technical solution, a safety photoelectric sensor and a reflector are installed at one end of the aluminum alloy guide rail, a control box is installed at one end of the aluminum alloy guide rail, and a motor housing is installed at the upper end of the aluminum alloy guide rail.
[0013] This utility model provides a silent zipper door with an automatic sealing mechanism, which has the following advantages:
[0014] (1) This utility model uses the contraction and movement of the first extrusion plate and the second extrusion plate to generate clamping force on both sides of the rubber strip, thereby improving the sealing effect between the rubber strip and the bottom beam. Through this method, the sealing strip can fit more tightly to the aluminum alloy bottom beam plate, ensuring that the sealing performance is not affected by external forces or other environmental factors. During the unfolding process, when the rubber sealing strip contacts the top of the aluminum alloy bottom beam plate, it is avoided that it will be deflected or swayed by external forces such as wind or air flow, and the contact position of the rubber sealing strip is not fixed, which will result in it not being able to fit completely tightly to the surface of the bottom beam, resulting in poor sealing.
[0015] (2) The present invention reduces friction through the curved surface structure between the metal bar and the first and second extrusion plates, so that the metal bar can move smoothly when passing through the extrusion plates, avoiding instability or damage to the sealing strip due to excessive friction. When the lower end of the metal bar is engaged with the card plate, this mechanism can ensure that the rubber strip is firmly fixed in the rectangular slot. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first-person perspective;
[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective;
[0018] Figure 3 This is a schematic diagram of the rectangular slot structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the aluminum alloy bottom beam structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the disassembled structure of the sealing assembly of this utility model;
[0021] Figure 6 This is a schematic diagram of the structure of the first extrusion plate and rubber strip of this utility model;
[0022] Figure 7 for Figure 6 Enlarged view of part A in the image;
[0023] In the diagram: 100, Zipper door mechanism; 101, Aluminum alloy guide rail; 102, Door curtain; 103, Motor housing; 104, Control box; 105, Reflector; 106, Safety photoelectric device; 107, Counterweight bag; 200, Sealing assembly; 201, Rubber strip; 202, Aluminum alloy bottom beam plate; 203, Rectangular slot; 204, Mounting through hole; 205, Fixing cylinder; 206, Telescopic rod; 207, Piston ring plate; 208, Compression spring; 209, First extrusion plate; 210, Second extrusion plate; 211, Metal strip; 212, Clamping plate. Detailed Implementation
[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0025] This utility model provides a technical solution: such as Figure 1-7 As shown in this embodiment, a silent zipper door with an automatic sealing mechanism includes a zipper door mechanism 100 and a sealing assembly 200. The sealing assembly 200 includes an aluminum alloy bottom beam plate 202. A rectangular slot 203 is provided inside the aluminum alloy bottom beam plate 202. An installation through hole 204 is provided inside the aluminum alloy bottom beam plate 202. A fixing cylinder 205 is installed inside the installation through hole 204. A compression spring 208 is provided inside the fixing cylinder 205. A piston ring plate 207 is installed at one end of the compression spring 208. The piston ring plate 207 moves telescopically inside the fixing cylinder 205. A telescopic rod 206 is installed at one end of the piston ring plate 207. A first extrusion plate 209 and a second extrusion plate 210 are fixedly installed at one end of the telescopic rod 206. The first extrusion plate 209 and the second extrusion plate 210 are disposed inside the rectangular slot 203 of the aluminum alloy bottom beam plate 202.
[0026] Furthermore, the surfaces of the first extrusion plate 209 and the second extrusion plate 210 are in contact with both sides of the rubber strip 201, and the rubber strip 201 is inside the rectangular slot 203 of the aluminum alloy bottom beam plate 202. A retaining plate 212 is installed inside the rectangular slot 203 of the aluminum alloy bottom beam plate 202. The retaining plate 212 is engaged and connected to the lower end of the metal bar 211. A retaining groove is opened inside the lower end of the metal bar 211, and the upper end of the metal bar 211 is installed at the lower end of the rubber strip 201.
[0027] Furthermore, the first extrusion plate 209 and the second extrusion plate 210 are curved metal structures, the two sides of the metal bar 211 are curved metal structures, and the upper end of the rubber strip 201 is fixedly installed at the lower end of the counterweight bag 107.
[0028] In use, firstly, when the curtain 102 is closed, it descends and unfolds. The weight of the counterweight bag 107 moves the rubber strip 201 downwards and inserts it into the rectangular slot 203 of the aluminum alloy bottom beam plate 202. When the rubber strip 201 enters the rectangular slot 203, a metal rod 211 is installed at the lower end of the rubber strip 201. Since the metal rod 211, the first extrusion plate 209, and the second extrusion plate 210 are curved metal structures, lubrication is facilitated and friction is reduced. With the metal rod 211 inserted between the first extrusion plate 209 and the second extrusion plate 210, the first extrusion plate 209 and the second extrusion plate 210 will retract and move, further driving the piston ring plate 207 and the compression spring 208. The fixed cylinder 205 moves inside. When the metal bar 211 passes between the first extrusion plate 209 and the second extrusion plate 210, the extrusion plate will drive the piston ring plate 207 to move through the elastic force of the compression spring 208, which in turn drives the first extrusion plate 209 and the second extrusion plate 210 to move. The first extrusion plate 209 and the second extrusion plate 210 form a clamping force on both sides of the rubber bar 201, and the lower end of the metal bar 211 will engage with the upper end of the clamping plate 212. During the unfolding process, when the rubber sealing strip contacts the top of the aluminum alloy bottom beam plate 202, it is to prevent it from shifting or swinging due to external forces such as wind or air flow, and to prevent the sealing strip from being unfixed and unable to fully and tightly adhere to the bottom beam surface, resulting in poor sealing.
[0029] like Figure 1As shown, the zipper door mechanism 100 includes an aluminum alloy guide rail 101, a door curtain 102 is provided on one side of the aluminum alloy guide rail 101, a counterweight bag 107 is installed at the lower end of the door curtain 102, a safety photoelectric sensor 106 and a reflector 105 are installed at one end of the aluminum alloy guide rail 101, a control box 104 is installed at one end of the aluminum alloy guide rail 101, and a motor housing 103 is installed at the upper end of the aluminum alloy guide rail 101. In actual use, the door curtain 102 of the zipper door is made of a lightweight and elastic material, it is connected to the aluminum alloy guide rail 101, and slides along the guide rail. Driven by a motor, the curtain 102 can be raised and lowered quickly to open and close the door. Located at the lower end of the curtain 102, the counterweight bag 107 increases the weight of the curtain 102, helping it to quickly return to its drooping state. When the control box 104 receives an opening signal, the motor starts and drives the curtain 102 to move upward along the guide rail via the transmission device. The curtain 102 will be moved to the upper or the set open position. When it is necessary to close the door, the control box 104 instructs the motor to run in the opposite direction, and the curtain 102 descends along the guide rail. The counterweight bag 107 helps the curtain 102 fall smoothly, and the curtain 102 will be completely closed, close to the ground, to ensure a seal. During the movement of the curtain 102, the safety photoelectric sensor 106 monitors the environment around the door in real time. Once it senses an obstacle (such as a person or object), it will immediately stop the motor to avoid danger.
[0030] This utility model provides a silent zipper door with an automatic sealing mechanism. The specific working principle is as follows: First, when the control box 104 receives an opening signal, the motor starts, driving the transmission device to move the door curtain 102 upwards along the guide rail. The door curtain 102 is moved to the upper or a preset open position. When it is necessary to close the door, the control box 104 instructs the motor to reverse, causing the door curtain 102 to descend along the guide rail. The counterweight bag 107 helps the door curtain 102 fall smoothly, completely closing the door curtain 102 and ensuring a tight seal against the ground. During operation, the safety photoelectric sensor 106 monitors the environment around the door in real time. Once it senses an obstacle (such as a person or object), it immediately stops the motor. Then, when the door curtain 102 is closed, it descends and unfolds. The weight of the counterweight bag 107 moves the rubber strip 201 downward and inserts it into the rectangular slot 203 of the aluminum alloy bottom beam plate 202. When the rubber strip 201 enters the rectangular slot 203, a metal bar 211 is installed at the lower end of the rubber strip 201. Due to the metal bar 211 and... The first extrusion plate 209 and the second extrusion plate 210 are curved metal structures, which facilitate lubrication and reduce friction. A metal bar 211 is inserted between the first extrusion plate 209 and the second extrusion plate 210. The first extrusion plate 209 and the second extrusion plate 210 will retract and move, further driving the piston ring plate 207 and the compression spring 208 to move inside the fixed cylinder 205. When the metal bar 211 passes between the first extrusion plate 209 and the second extrusion plate 210, the extrusion plate, through the elastic force of the compression spring 208, will drive the piston ring plate... 207 moves, thereby causing the first extrusion plate 209 and the second extrusion plate 210 to move. The first extrusion plate 209 and the second extrusion plate 210 form a clamping force on both sides of the rubber strip 201, and the lower end of the metal strip 211 will engage with the upper end of the clamping plate 212. During the unfolding process, when the rubber sealing strip contacts the aluminum alloy bottom beam plate 202, it is prevented from being offset or swayed by external forces such as wind or air flow, and the position of the sealing strip is not fixed, so that it cannot completely and tightly adhere to the bottom beam surface, resulting in poor sealing.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A silent zipper door with an automatic sealing mechanism, comprising a zipper door mechanism (100) and a sealing assembly (200), characterized in that: The sealing assembly (200) includes an aluminum alloy bottom beam plate (202), the aluminum alloy bottom beam plate (202) has a rectangular slot (203) inside, the aluminum alloy bottom beam plate (202) has an installation through hole (204) inside, a fixing cylinder (205) is installed inside the installation through hole (204), a compression spring (208) is provided inside the fixing cylinder (205), a piston ring plate (207) is installed at one end of the compression spring (208), the piston ring plate (207) moves telescopically inside the fixing cylinder (205), a telescopic rod (206) is installed at one end of the piston ring plate (207), and a first extrusion plate (209) and a second extrusion plate (210) are fixedly installed at one end of the telescopic rod (206).
2. A silent zipper door with an automatic sealing mechanism according to claim 1, characterized in that: The first extrusion plate (209) and the second extrusion plate (210) are disposed inside the rectangular slot (203) of the aluminum alloy bottom beam plate (202).
3. A silent zipper door with an automatic sealing mechanism according to claim 2, characterized in that: The surfaces of the first extrusion plate (209) and the second extrusion plate (210) are in contact with both sides of the rubber strip (201), and the rubber strip (201) is inside the rectangular slot (203) of the aluminum alloy bottom beam plate (202). A clamping plate (212) is installed inside the rectangular slot (203) of the aluminum alloy bottom beam plate (202). The first extrusion plate (209) and the second extrusion plate (210) are curved metal structures.
4. A silent zipper door with an automatic sealing mechanism according to claim 3, characterized in that: The card plate (212) is engaged with the lower end of the metal bar (211), and the lower end of the metal bar (211) has a slot. The upper end of the metal bar (211) is installed at the lower end of the rubber strip (201).
5. A silent zipper door with an automatic sealing mechanism according to claim 4, characterized in that: The metal bar (211) has curved metal structures on both sides, and the upper end of the rubber strip (201) is fixedly installed on the lower end of the counterweight bag (107).
6. A silent zipper door with an automatic sealing mechanism according to claim 1, characterized in that: The zipper door mechanism (100) includes an aluminum alloy guide rail (101), a door curtain (102) is provided on one side of the aluminum alloy guide rail (101), and a counterweight cloth bag (107) is installed at the lower end of the door curtain (102).
7. A silent zipper door with an automatic sealing mechanism according to claim 6, characterized in that: A safety photoelectric sensor (106) and a reflector (105) are installed at one end of the aluminum alloy guide rail (101), a control box (104) is installed at one end of the aluminum alloy guide rail (101), and a motor housing (103) is installed at the upper end of the aluminum alloy guide rail (101).
Citation Information
Patent Citations
A silent zipper door with automatic sealing mechanism
CN116838239B