Pressing mechanism of air-tight door and air-tight door

Abstract

The utility model relates to the technical field of air-tight doors, in particular to an air-tight door pressing mechanism and an air-tight door, the pressing mechanism is installed in a door leaf, and the pressing mechanism comprises a connecting rod, a pressing head, a connecting rod and a connecting shaft; wherein the first end of the pressing head is a pressing part, the second end of the pressing head is hinged to the connecting rod, and a rotating shaft hole is formed in the pressing head; a rotating shaft is arranged on the door plate, and the pressing head is installed on the rotating shaft through a rotating shaft hole of the pressing head so as to achieve the rotating pressing function. The first end of the connecting rod is provided with a connecting shaft, the connecting rod is connected with the handle through the connecting shaft, and the second end of the connecting rod is hinged to the connecting rod so that the connecting rod and the pressing head can be driven to move when the handle is operated. The utility model can realize the effect of compressing the frame sash, and is attractive in appearance.

Description

Technical Field

[0001] The utility model relates to the technical field of airtight doors, in particular to a pressing mechanism and an airtight door of an airtight door. Background Art

[0002] Currently, the airtight doors on the market generally have limitations in design, which are mainly reflected in the following aspects: First, their welding process is complex, which not only increases the production cost, but also makes the edges of the joints relatively sharp, posing potential safety hazards and being prone to scratching users during use or maintenance. Second, the pressing mechanism is directly exposed on the surface of the door leaf. This design not only destroys the overall aesthetics of the door leaf, but may also be worn or corroded due to long-term exposure, affecting the service life and sealing effect. Third, the door frame mostly adopts an arc welding structure. Although this design enhances the structural strength to a certain extent, it also greatly limits the diversity and variability of the door body appearance, making it difficult to meet the pursuit of decorative and personalized needs in different places.

[0003] Therefore, it is necessary to develop a new pressing mechanism and airtight door for airtight doors. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pressing mechanism and an airtight door for an airtight door, which can achieve the function of pressing the frame and the leaf and have a beautiful appearance.

[0005] In the first aspect, a pressing mechanism for an airtight door according to the utility model includes:

[0006] The pressing mechanism is installed inside the door leaf, and the pressing mechanism includes a connecting rod, a pressing head, a connecting rod and a connecting shaft;

[0007] Wherein, the first end of the pressing head is a pressing part, the second end of the pressing head is hinged to the connecting rod, and a rotating shaft hole is provided on the pressing head;

[0008] A rotating shaft is provided on the door panel, and the pressing head is installed on the rotating shaft through its rotating shaft hole to achieve the function of rotational pressing;

[0009] The first end of the connecting rod is provided with a connecting shaft, and the connecting rod is connected to the handle through the connecting shaft. The second end of the connecting rod is hinged to the connecting rod to drive the connecting rod and the pressing head to move when the handle is operated.

[0010] Optionally, the first end of the connecting rod is provided with connecting shafts on both the inner side and the outer side of the door, and the two connecting shafts are respectively connected corresponding to the handles outside and inside the door to achieve bilateral operation.

[0011] Optionally, two pressing heads are provided, which are respectively arranged at the upper end and the lower end of the connecting rod to enhance the sealing effect.

[0012] In a second aspect, a door of the present utility model includes a door frame and a door leaf. This door adopts the pressing mechanism of the airtight door as described in the present utility model to achieve efficient sealing.

[0013] Optionally, a first sealing strip is provided on the first step on the outer side of the door on the door frame to enhance the sealing performance between the door and the door frame.

[0014] Optionally, a second sealing strip is provided on the second step on the inner side of the door on the door leaf to further improve the sealing effect.

[0015] Optionally, the second sealing strip is a hollow sealing strip to provide better sound insulation, heat insulation and sealing performance.

[0016] Optionally, polyurethane is provided inside the door leaf to improve the heat preservation and sound insulation performance.

[0017] Advantages of the present utility model:

[0018] (1) The door frame and the door leaf achieve the function of pressing the frame and the leaf through the pressing mechanism. When the handle rotates, it drives the link mechanism in the pressing mechanism, and the link mechanism drives the pressing head to press against the door frame. Since the entire pressing mechanism is hidden in the door leaf, the outer surface of the door leaf is more concise and beautiful.

[0019] (2) Adopt a bilateral operation design: The first end of the connecting rod is provided with connecting shafts on both the inner side and the outer side of the door, which are respectively connected corresponding to the handles outside and inside the door, realizing the bilateral operation function and improving the convenience of use.

[0020] (3) Double pressing head design: A pressing head is provided at each of the upper end and the lower end of the connecting rod. Through the simultaneous action of the two pressing heads, the uniformity and reliability of the sealing are enhanced.

[0021] (4) Double sealing design: A first sealing strip is provided on the door frame, and a second sealing strip is provided on the door leaf. The first sealing strip is mainly used for preliminary sealing to block most of the external factors; the second sealing strip further improves the sealing effect, especially when the door is closed, it fits closely with the door leaf to form a more airtight sealing layer. In particular, the second sealing strip adopts a hollow design, which not only improves the sealing performance but also has good sound insulation and heat insulation effects.

[0022] (5) Filling polyurethane inside the door leaf: In order to improve the heat preservation and sound insulation performance of the door, the present utility model also fills polyurethane material inside the door leaf. Polyurethane has good heat preservation, sound insulation and flame retardant properties, which can further improve the overall performance of the door. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the airtight door structure described in the embodiment of the present application;

[0024] Figure 2 Schematic structural view of the pressing mechanism described in the embodiments of the present application;

[0025] In the figure: 1 - door frame, 11 - first step, 2 - door leaf, 21 - second step, 3 - pressing mechanism, 31 - connecting rod, 32 - pressing head, 33 - connecting shaft, 34 - connecting rod, 35 - rotating shaft hole, 4 - polyurethane, 5 - handle, 6 - second sealing strip, 7 - first sealing strip. Specific embodiments

[0026] The following will illustrate the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the protection scope of the present invention.

[0027] As Figure 1 and Figure 2 shown, in the embodiments of the present application, a pressing mechanism for an airtight door, the pressing mechanism is installed in the door leaf 2, and the pressing mechanism includes a connecting rod 31, a pressing head 32, a connecting rod 34 and a connecting shaft 33. Among them, the first end of the pressing head 32 is a pressing portion, the second end of the pressing head 32 is hinged to the connecting rod 31, and a rotating shaft hole 35 is provided on the pressing head 32. A rotating shaft (not shown in the figure) is provided on the door panel of the door leaf 2, and the pressing head 32 is installed on the rotating shaft through its rotating shaft hole 35 to achieve the function of rotary pressing. The first end of the connecting rod 34 is provided with a connecting shaft 33, the connecting rod 34 is connected to the handle 5 through the connecting shaft 33, and the second end of the connecting rod 34 is hinged to the connecting rod 31 (for example: connected by a pin shaft) to drive the connecting rod 31 and the pressing head 32 to move when the handle 5 is operated.

[0028] In the embodiments of the present application, the pressing mechanism is composed of components such as a connecting rod 31, a pressing head 32, a connecting rod 34 and a connecting shaft 33. The first end of the pressing head 32 is a pressing portion, which is used to contact the door frame 1 to achieve airtightness; the second end of the pressing head 32 is hinged to the connecting rod 31, and a rotating shaft hole 35 is provided on the pressing head 32 so as to be installed on the door panel through the rotating shaft and achieve the function of rotary pressing. The connecting rod 34 is respectively connected to the handle 5 and the connecting rod 31 to form a four-bar linkage mechanism, so that when the handle 5 is operated, the connecting rod 31 and the pressing head 32 can be driven to move, realizing automatic pressing during the opening and closing process of the door.

[0029] In the embodiments of the present application, the working process of the pressing mechanism is as follows:

[0030] (1) Initial state:

[0031] When the door is in the closed state but not yet tightly pressed, the pressing head 32 is usually in a position where it does not fully press against the door frame. At this time, the connecting rod 31 and the connecting rod 34 are in a relatively loose state, and the connecting shaft 33 serves as the pivot point for rotation between the two.

[0032] (2)Initiation of the pressing action:

[0033] When the user operates the handle 5, this action is first transmitted to the connecting rod 34 through the connecting shaft 33.

[0034] After being driven, the connecting rod 34 begins to rotate around the connecting shaft 33 and drives the connecting rod 31 to move accordingly.

[0035] (3)Pressing of the pressing head:

[0036] The movement of the connecting rod 31 causes the pressing head 32 to produce a corresponding displacement. Since the first end of the pressing head 32 is the pressing part and is opposite to the door frame 1, when the pressing head 32 moves towards the door frame 1 side, the frame and the door leaf (i.e., the door frame 1 and the door leaf 2) will be gradually pressed tightly.

[0037] (4)During the pressing process, the pressing head 32 will rotate by a certain angle around its rotating shaft hole 35 to adapt to the shape change of the sealing surface of the door frame 1 or the door leaf 2, ensuring the uniformity and reliability of the seal.

[0038] (5)Completion of the pressing:

[0039] When the pressing head 32 fully presses against the door frame 1, the sealing effect of the door reaches the best. At this time, components such as the connecting rod 31, the connecting rod 34, and the connecting shaft 33 are all in a relatively stable state, ensuring that the pressing head 32 can continuously maintain the pressing force on the sealing surface.

[0040] As Figure 1 shown, in a possible embodiment, the first end of the connecting rod 34 is provided with connecting shafts 33 on both the inner and outer sides of the door, and are respectively connected to the handles outside and inside the door through these two connecting shafts 33 to achieve two-sided operation.

[0041] As Figure 2 shown, in a possible embodiment, there are two pressing heads 32, which are respectively arranged at the upper and lower ends of the connecting rod 31 to enhance the sealing effect.

[0042] As Figure 1 shown, in the embodiment of the present application, a door includes a door frame and a door leaf, and this door adopts the pressing mechanism of the airtight door of the present utility model to achieve efficient sealing.

[0043] As Figure 1As shown, in a possible embodiment, a first sealing strip 7 is provided on the first step 11 on the outer side of the door of the door frame 1 to enhance the sealing performance between the door leaf 2 and the door frame 1.

[0044] As Figure 1 shown, in a possible embodiment, a second sealing strip 6 is provided on the second step 21 on the inner side of the door of the door leaf 2 to further improve the sealing effect.

[0045] As Figure 1 shown, in a possible embodiment, the second sealing strip 6 is a hollow sealing strip. When the door frame 1 and the door leaf 2 are pressed together, the compression amount of the hollow sealing strip increases relative to the solid sealing strip, making the sealing performance of the overall door better. Then, the sealing performance is enhanced by the first sealing strip 7. It can provide better sound insulation, heat insulation and sealing performance.

[0046] As Figure 1 shown, in a possible embodiment, polyurethane 4 is provided inside the door leaf to improve the heat preservation and sound insulation performance.

[0047] After adopting the pressing mechanism of the sealed door in the embodiment of the present application, the door frame 1 can adopt an integrally formed door frame. The integrally formed door frame has low manufacturing difficulty, firm structure, and can also modify the outer facade shape, which better meets the market demand.

[0048] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A pressing mechanism for an airtight door, characterized in that: The pressing mechanism is installed inside the door leaf (2), and the pressing mechanism (3) includes a connecting rod (31), a pressing head (32), a connecting rod (34) and a connecting shaft (33); Wherein, the first end of the pressing head (32) is a pressing part, the second end of the pressing head (32) is hinged to the connecting rod (31), and a rotating shaft hole (35) is provided on the pressing head (32); A rotating shaft is provided on the door panel, and the pressing head (32) is installed on the rotating shaft through its rotating shaft hole (35) to realize the rotating pressing function; The first end of the connecting rod (34) is provided with a connecting shaft (33), the connecting rod (34) is connected to the handle (5) through the connecting shaft (33), and the second end of the connecting rod (34) is hinged to the connecting rod (31) to drive the connecting rod (31) and the pressing head (32) to move when the handle (5) is operated.

2. The pressing mechanism of the airtight door according to claim 1, characterized in that: The first end of the connecting rod (34) is provided with the connecting shaft (33) on both the inner side and the outer side of the door, and is correspondingly connected to the handles (5) outside and inside the door through these two connecting shafts (33).

3. The pressing mechanism of the airtight door according to claim 1, characterized in that: There are two pressing heads (32), which are respectively arranged at the upper end and the lower end of the connecting rod (31).

4. A sealed door, comprising a door frame (1) and a door leaf (2), characterized in that: This door adopts the pressing mechanism of the airtight door as described in any one of claims 1 to 3.

5. The sealed door according to claim 4, characterized in that: A first sealing strip (7) is provided on the first step (11) on the outer side of the door on the door frame (1).

6. The sealed door according to claim 4, wherein: A second sealing strip (6) is provided on the second step (21) on the inner side of the door on the door leaf (2).

7. The airtight door according to claim 6, wherein: The second sealing strip (6) is a hollow sealing strip.

8. The sealed door according to claim 4, wherein: Polyurethane (4) is provided inside the door leaf (2).

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