A full-buried door structure suitable for cold storage mechanism plate

Abstract

The utility model relates to a full -buried door structure suitable for cold storage mechanism board, including door panel assembly, door hole frame subassembly and hinge, door panel assembly is rotatablely installed on door hole frame subassembly through hinge, the door hole frame subassembly has C type opening structure, this C type opening structure contains and inserts the cold storage mechanism board edge, and through the cooperation of the screw and the nut of passing, the door hole frame subassembly is fixed on the mechanism board, both sides edges of door panel assembly are equipped with door panel frame subassembly, and the magnetic sealing rubber strip is equipped between door panel frame subassembly and door hole frame subassembly. The door hole frame subassembly and door panel frame subassembly are all by aluminium alloy section bar and PVC section bar splicing and constitute. This structure does not need pre -buried spare, and can install on -the -spot hole.

Description

Technical Field

[0001] This utility model relates to the field of fully embedded doors for cold storage, and in particular to a fully embedded door structure suitable for cold storage machine panels. Background Technology

[0002] Cold storage doors are crucial structural components used to separate cold storage rooms from the external space, requiring excellent sealing, insulation, and structural stability. Traditional cold storage doors are mostly constructed using hand-foamed cold storage panels. During installation, angle steel frames or iron plates are typically embedded in the wall for subsequent door frame fixation. These doors are usually custom-made by manufacturers to pre-set dimensions, and the door opening position and size cannot be arbitrarily changed, resulting in limited flexibility during on-site construction.

[0003] Some cold storage doors support later installation by drilling holes in the cold storage panel, but most of them adopt a door body protruding from the wall, which is not flush with the surface of the cold storage panel, affecting the appearance and sealing performance.

[0004] The existing technology, Chinese Patent Publication No. CN 216159441U, entitled "A Fully Embedded Door for Cold Storage," discloses a fully embedded door for cold storage. Its door frame consists of inner and outer parts, which are respectively fixed to the inner and outer sides of the machine-made panel by rivets, achieving the purpose of installation without pre-embedded parts and allowing for on-site drilling. However, this structure still has certain limitations:

[0005] (1) The door frame is connected by rivets. The rivets cannot be adjusted when fixed, resulting in poor fault tolerance during installation. Furthermore, during long-term operation of the cold storage, the frame may loosen due to thermal expansion and contraction or deformation of the sheet metal. Both the sturdiness and ease of maintenance are insufficient.

[0006] (2) The cold bridge is only described as a “glue injection structure”, without detailed explanation of its material, structural layout and insulation performance mechanism, making it difficult to ensure its insulation effect;

[0007] (3) Although the structural diagram appears to contain a sealing strip, the instruction manual does not clearly describe the sealing structure, material or connection method between the door frame and the door leaf, and the sealing path is unclear. Utility Model Content

[0008] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a fully embedded door structure that is structurally stable, has good sealing performance, reliable thermal insulation performance and is suitable for cold storage of machine-made panels. This structure can realize on-site drilling installation without pre-embedded parts, and improves the installation firmness and convenience of later maintenance through adjustable fastening connection. At the same time, through the optimized cold bridge structure and sealing component design, the overall heat insulation effect and air tightness are further improved.

[0009] The technical solution adopted by this utility model to solve its technical problem is: a fully embedded door structure suitable for cold storage machine panels, including a door panel assembly, a door panel frame assembly, a door opening frame assembly, and a hinge. The door panel assembly is rotatably installed on the door opening frame assembly via the hinge. The door opening frame assembly has a C-shaped opening structure, which encompasses the edge of the cold storage machine panel inserted therein, and the door opening frame assembly is fixed to the machine panel by screws and nuts. Door panel frame assemblies are provided on both sides of the door panel assembly, and the door panel frame assemblies are arranged opposite to the door opening frame assemblies.

[0010] Furthermore, a magnetic sealing strip is provided between the door panel frame assembly and the door opening frame assembly.

[0011] Furthermore, the door panel frame assembly is constructed by splicing aluminum alloy profile a and PVC profile a. The PVC profile has an L-shaped structure, and the aluminum alloy profile has a C-shaped structure. The two are joined together to form a clamping cavity for covering the edge of the door panel assembly. The aluminum alloy profile a and the PVC profile a are connected by a convex-concave fit.

[0012] Furthermore, the door frame assembly is composed of aluminum alloy profiles arranged on both sides of the cold storage machine panel and PVC profiles located between the two aluminum alloy profiles, and the aluminum alloy profile b and PVC profile b together form a cold bridge structure.

[0013] Furthermore, a steel plate is embedded on the outer side of the aluminum alloy profile b.

[0014] Furthermore, the screw passes through from the inside of the cold storage to the outside of the cold storage and is connected and fixed to a nut located inside the cold storage. The nut is located inside the aluminum alloy profile b near the inside of the cold storage and is covered with a decorative cover.

[0015] Furthermore, the magnetic sealing strip has a strip-shaped permanent magnet material embedded inside and is covered by a flexible material on the outside. The bottom of the magnetic sealing strip has a raised structure and is inserted into the groove provided in the aluminum alloy profile a in the door panel frame assembly.

[0016] The beneficial effects of this utility model are:

[0017] (1) This utility model realizes a fully embedded door structure that does not require pre-embedded parts and can be installed on the cold storage wall of the machine-made board by cooperating with the door frame assembly and the door panel assembly. The door frame can be directly inserted into the door opening at any position and fixed. It has strong adaptability and overcomes the defect of the traditional cold storage door installation position limitation. It can flexibly adjust the opening size and position according to actual needs, significantly improving the construction freedom and project efficiency.

[0018] (2) This utility model adopts a detachable connection structure with screws and nuts. During installation, screws can be inserted through the inside of the cold storage and tightened by the inner nut. This not only ensures a firm installation, but also allows for easy adjustment or disassembly and replacement later. Compared with the traditional rivet fixing structure, it has higher flexibility and maintenance convenience.

[0019] (3) This utility model introduces a cold bridge structure composed of aluminum alloy and PVC profile splicing into the door frame structure, which effectively blocks the internal and external heat conduction path while ensuring the overall strength of the door frame, and improves the heat insulation performance of the door in low temperature environment, which meets the energy-saving requirements of cold storage.

[0020] (4) The present invention provides a magnetic sealing strip between the door frame and the door panel, which enables the door to automatically adsorb and effectively seal when closed, thereby enhancing the airtightness and sealing reliability of the door and further improving the overall heat preservation effect and performance of the cold storage. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of a fully embedded door structure suitable for cold storage machine panels according to this utility model;

[0022] Figure 2 This is a schematic diagram of the door panel frame assembly of this utility model;

[0023] Figure 3 This is a schematic diagram of the door frame assembly of this utility model;

[0024] Figure 4 This is a schematic diagram of a fully embedded door structure suitable for cold storage machine panels according to this utility model;

[0025] In the diagram: 1-Door panel assembly; 2-Door panel frame assembly; 21-Aluminum alloy profile a; 22-PVC profile a; 3-Door opening frame assembly; 31-Screw; 32-Nut; 33-Decorative cover; 34-Cold bridge structure; 35-Steel plate; 36-Aluminum alloy profile b; 37-PVC profile b; 4-Door lock; 41-Door lock inward opening device; 5-Hinge; 6-Magnetic sealing strip; A-Cold storage interior; B-Cold storage body; C-Cold storage exterior. Detailed Implementation

[0026] The present invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0027] like Figure 1As shown, this utility model provides a fully embedded door structure suitable for cold storage machine panels, which includes a door panel assembly 1, a door panel frame assembly 2, a door opening frame assembly 3, and a hinge 5. The door panel assembly 1 is rotatably mounted on the door opening frame assembly 3 via the hinge 5 to form an openable door structure.

[0028] The door frame assembly 3 is a frame structure installed at the door opening of the cold storage machine panel. It has a C-shaped opening, allowing it to encompass the edge of the cold storage machine panel B during installation, thus covering the edges of the cold storage panel from both sides and improving installation stability. For reliable fixing, the door frame assembly 3 has at least one through hole for screws 31 and nuts 32 to pass through from the inside A of the cold storage to the outside C. After passing through the machine panel, they connect with the nuts 32 located on the inside of the cold storage, forming a double-sided clamping structure to secure the door frame to the machine panel. The nuts 32 are installed in the middle of the aluminum alloy profile 36 near the inside A of the cold storage, and a decorative cover 33 can be installed on its exterior for concealment and aesthetic purposes.

[0029] In one optional embodiment, the nut 32 is a pre-embedded structure, which is embedded in the through hole of the aluminum alloy profile 36 during the profile forming or assembly stage. After being embedded, it forms a pre-fixed state with the profile and cannot fall off. At this time, the through hole at the corresponding position on the door frame assembly 3 only needs to meet the size requirement for the screw 31 to pass through, without the need to reserve additional space for inserting the nut, thereby further reducing the component wall thickness and improving the compactness and visual flatness of the overall structure.

[0030] Door panel assembly 1 has door panel frame components 2 on its left and right sides, respectively. Each door panel frame component 2 is an independent structure that mates with the edge of the door panel assembly 1, and is fixed to the two sides of the door panel assembly 1 by means of snap-fit, splicing, or fitting. The door panel frame components 2 are positioned along the edge of the door panel, forming a protective covering around the door edge, and also serving as a base for subsequent sealing structures. This arrangement allows the door panel frame components 2 and the door panel assembly 1 to form an integrated structure, facilitating processing, assembly, and subsequent sealing closure with the door opening frame component 3.

[0031] like Figure 2 As shown, the door panel frame assembly 2 is composed of aluminum alloy profile a21 and PVC profile a22 spliced ​​together. The diagonal lines in the figure represent PVC profile a22, and the intersecting lines represent aluminum alloy profile a21.

[0032] The PVC profile a22 has an overall L-shaped structure and is used to fit the outer edge of the door panel assembly 1. Its bottom inner surface has a positioning groove. The aluminum alloy profile a21 has an overall C-shaped structure, providing sufficient structural strength. Its splicing side has a protrusion corresponding to the positioning groove. The two profiles are initially spliced ​​together through a convex-concave fit. The protrusion, after being embedded in the groove, can achieve self-positioning and locking. In a preferred embodiment, to further improve the overall strength and long-term stability after splicing, structural adhesive or hot melt adhesive can be filled into the joint gap after the convex-concave structure fits for bonding and fastening.

[0033] like Figure 3 As shown, the door frame assembly 3 is also a composite structure, consisting of aluminum alloy profiles b36 symmetrically arranged on both the inner and outer sides of the cold storage machine panel B, spliced ​​together with PVC profiles b37 located between them. The three work together to form a stable installation frame. In the figure, the diagonal lines represent PVC profile b37, and the cross lines represent aluminum alloy profile b36.

[0034] In this structure, the PVC profile b37 is located between the aluminum alloy profiles b36, forming a thermal break structure 34. A thermal break structure refers to the use of materials with lower thermal conductivity (such as PVC, ABS, or thermal insulation strips) inserted between metals with higher thermal conductivity in door or window components to form a "heat-blocking zone." This prevents the low temperature inside the cold storage from being conducted to the outside through the metal frame, thereby achieving heat insulation and improving energy efficiency.

[0035] In this embodiment, a heat-insulating barrier layer along the heat conduction path is formed by inserting PVC profiles b37 between the aluminum alloy profiles b36. The thermal conductivity of the PVC profile b37 is much lower than that of aluminum. On the one hand, it effectively isolates the thermal bridging effect between the aluminum alloy profiles b36. On the other hand, its shape and structure are equipped with matching grooves, which can form a stable splice with the aluminum alloy profiles b36 by snapping together. This ensures both the overall frame structure strength and prevents heat from being transferred over a large area along the door frame structure.

[0036] During long-term low-temperature operation of cold storage, the cold bridge structure 34 can significantly reduce the risk of cold energy leakage and condensation, improve the overall energy-saving performance of the door frame components, and meet the combined requirements of cold storage for high sealing and high insulation of the door.

[0037] Combination Figure 1 , Figure 2 and Figure 3 As shown, a magnetic sealing strip 6 is provided between the door panel frame assembly 2 and the door opening frame assembly 3. The magnetic sealing strip 6 is used to improve the sealing performance and airtight adsorption performance of the door when it is closed.

[0038] Specifically, the magnetic sealing strip 6 is positioned at the contact interface between the aluminum alloy profile a21 in the door panel frame assembly 2 and the PVC profile b37 in the door opening frame assembly 3. The inner side of the aluminum alloy profile a21 has a groove, and the bottom of the magnetic sealing strip 6 has a corresponding embedded protrusion structure, allowing it to be inserted into and locked into the groove, forming a stable embedded installation.

[0039] The magnetic sealing strip 6 consists of an elastic outer shell made of flexible rubber or PVC material and an embedded magnetic core. The core is a strip-shaped permanent magnet material, such as a magnet or magnetic powder strip, which has good magnetic adsorption capacity and elastic rebound performance. After installation, the outer wall of the magnetic sealing strip 6 naturally abuts against the inner structural surface of the door frame assembly 3.

[0040] Furthermore, although the magnetic sealing strip 6 mainly contacts the PVC profile b37, since PVC is a non-magnetic material, in order to achieve effective magnetic attraction, this embodiment provides a steel plate 35 inside the aluminum alloy profile b36 in the door frame assembly 3. This steel plate 35 not only bears the reaction force generated by the mounting nut 32, but also serves as a magnetic response component for the magnetic sealing strip 6 when the door is closed. Specifically, when the door is closed, the magnetic core of the magnetic sealing strip 6 approaches the steel plate 35 to form a magnetic attraction relationship. Although the two are not strictly aligned, during the natural return of the door, the magnetic force is sufficient to make the strip approach and be attracted to the area of ​​the steel plate 35.

[0041] Through the aforementioned structure, the magnetic sealing strip 6 provides a flexible fit while relying on magnetic force to automatically attract and close the door panel, enhancing the door's fit stability and sealing durability. This effectively improves the sealing reliability and energy-saving performance of the cold storage door under frequent opening and closing conditions. The magnetic sealing strip 6 not only generates adsorption force when the door closes, improving the fit and seal, but also, due to its material elasticity, provides appropriate cushioning during door opening and closing, reducing mechanical wear and extending service life.

[0042] like Figure 1 and Figure 4 As shown, the door panel assembly 1 is filled with insulation material, and a door lock 4 is provided on the front of the door panel assembly 1 for controlling the opening and closing of the door. The door lock 4 is preferably a cold storage-specific lock with a knob-type handle, which can lock and release the door through mechanical linkage. The door lock 4 is located on the door panel assembly 1 near the edge of the opening side, and forms a matching limit with the door frame assembly 3 to achieve locking and positioning after the door is closed.

[0043] Furthermore, an inward door lock opener 41 is provided on the inner side of the door panel assembly 1 (i.e., inside the cold storage A). This inward door lock opener 41 is a linkage component located inside the door lock 4. When a person is inside the cold storage A, the door lock 4 can be opened from the inside by pressing or pulling the inward door lock opener 41, thereby ensuring that the user can safely open the door from the inside in the cold storage. It has good safety and humanized design features.

[0044] In summary, the fully embedded cold storage door structure provided by this utility model achieves on-site installation without the need for pre-embedded parts through optimized structural design. Furthermore, the multi-material composite structure enhances the thermal insulation and sealing performance of the door, resulting in numerous beneficial effects such as convenient installation, stable structure, reliable thermal insulation, and easy maintenance. It is suitable for the door renovation and new construction applications of various types of machine-made panel cold storage.

[0045] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A fully embedded door structure suitable for cold storage machine panels, comprising a door panel assembly, a door panel frame assembly, a door opening frame assembly, and hinges, wherein the door panel assembly is rotatably mounted on the door opening frame assembly via hinges, characterized in that: The door frame assembly has a C-shaped opening structure that encompasses the edge of the cold storage machine panel inserted therein, and the door frame assembly is fixed to the machine panel by screws and nuts. Door panel frame assemblies are provided on both sides of the door panel assembly, and the door panel frame assemblies are arranged opposite to the door frame assembly.

2. The fully embedded door structure suitable for cold storage machine panels according to claim 1, characterized in that: A magnetic sealing strip is provided between the door panel frame assembly and the door opening frame assembly.

3. The fully embedded door structure suitable for cold storage machine panels according to claim 1, characterized in that: The door panel frame assembly is composed of aluminum alloy profile a and PVC profile a spliced ​​together. The PVC profile has an L-shaped structure and the aluminum alloy profile has a C-shaped structure. The two are joined together to form a clamping cavity for covering the edge of the door panel assembly. The aluminum alloy profile a and the PVC profile a are connected by a convex-concave fit.

4. The fully embedded door structure suitable for cold storage machine panels according to claim 1, characterized in that: The door frame assembly is composed of aluminum alloy profiles arranged on both sides of the cold storage machine panel and PVC profiles located between the two aluminum alloy profiles. The aluminum alloy profile b and the PVC profile b together form a cold bridge structure.

5. The fully embedded door structure suitable for cold storage machine panels according to claim 4, characterized in that: A steel plate is embedded on the outside of the aluminum alloy profile b.

6. The fully embedded door structure suitable for cold storage machine panels according to claim 1, characterized in that: The screws are inserted from the inside of the cold storage to the outside of the cold storage and are connected and fixed to the nuts located inside the cold storage. The nuts are located inside the aluminum alloy profile b near the inside of the cold storage and are covered with a decorative cover.

7. A fully embedded door structure suitable for cold storage machine panels according to claim 2, characterized in that: The magnetic sealing strip has a strip-shaped permanent magnet material embedded inside and is covered by a flexible material on the outside. The bottom of the magnetic sealing strip has a raised structure and is inserted into the groove of the aluminum alloy profile a in the door panel frame assembly.

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