Thermal-insulation free anti-collision door hinge pre-embedded structure

Abstract

The utility model relates to the technical field of hinge embedded parts, and discloses a heat preservation free anti-collision door hinge embedded structure which comprises two cushion blocks and an embedded inner plug, the cushion blocks and the embedded inner plug are embedded in one side of a foaming door plate, a door plate sectional material is arranged on one side of the foaming door plate, and the door plate sectional material is arranged on the other side of the foaming door plate. A through hole matched with the embedded inner plug is formed in the door plate profile, and a connecting piece is installed on the outer side of the embedded inner plug. When the foaming door plate is foamed, namely, the embedded part is embedded, polyurethane foam in the door plate does not need to be emptied in the subsequent installation process, the embedded part serves as an internal support of the foaming door plate, the strength of the door plate is improved, the free anti-collision door panel cannot be pressed to be sunken when a hinge is installed, and the free anti-collision door panel is prevented from being damaged. The technical problems that a traditional free anti-collision door hinge is complex in installation and low in efficiency are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hinge embedded parts, in particular to a hinge embedded structure for a heat-insulating free-collision-proof door. Background Art

[0002] Cold storage doors are installed in cold storage facilities, freezer rooms, and other refrigerated environments to insulate and seal the interior. With advances in refrigeration and freezing technology, cold storage projects are now reaching a wider range of sectors. This increasing penetration of refrigeration and freezing technology has, to a certain extent, increased demand for cold storage. This increase in the number of cold storage facilities has also led to a growing demand for cold storage panels. It is understood that demand for refrigeration and freezing in my country is increasing at a rate of 30% per year.

[0003] At present, there are no special embedded parts for free anti-collision doors in China. When installing the hinges, the polyurethane foam around the hinges inside the door panel needs to be hollowed out so that the hinges can be inserted into the door panel. Hollowing out the core material of the door panel causes the free anti-collision door panel to be concave, and the hinges will shake with the free anti-collision door panel, affecting the overall use experience and service life of the free anti-collision door. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art and to propose a hinge pre-embedded structure for a heat-insulating free anti-collision door.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A pre-embedded structure for a heat-insulating, free-collision-proof door hinge comprises two pads and a pre-embedded inner plug, wherein the pad and the pre-embedded inner plug are both pre-embedded on one side of a foam door panel, a door panel profile is provided on one side of the foam door panel, and a through hole matching the pre-embedded inner plug is provided on the door panel profile, a connecting piece is installed on the outside of the pre-embedded inner plug, the connecting piece is located on the other side of the door panel profile, and the length of the connecting piece is longer than the length of the through hole, both ends of the connecting piece are movably penetrated and connected with self-tapping screws, and the other end of the self-tapping screw is movably passed through the door panel profile and screwed to the surface of the pad by threads, a plurality of through holes are provided on the surface of the pad, and the through holes are used to install hinges.

[0007] Preferably, the foaming comprises an outer color steel plate layer and an inner foamed polyurethane layer.

[0008] Preferably, a positioning groove adapted to the connecting piece is provided in the middle of the side of the door panel profile away from the foamed door panel, so as to limit the position of the connecting piece.

[0009] Preferably, the cross-section of the embedded inner plug is in the shape of a rounded rectangle, and the side of the nylon pad is in the shape of a "convex" character.

[0010] Preferably, the cushion block is made of nylon.

[0011] Preferably, a release agent layer is provided on the outer side of the embedded inner plug, and the release agent layer adopts polyvinyl alcohol release agent or wax-based release agent, which is used to form a film on the surface of the embedded inner plug to facilitate separation of the embedded inner plug from the foamed polyurethane layer.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The embedded parts provided by the utility model can be embedded in the foam door panel when the foam door panel is foamed. In the subsequent installation process, there is no need to hollow out the polyurethane foam inside the door panel. The embedded parts serve as the internal support of the foam door panel, which improves the strength of the door panel. The free anti-collision door panel will not be pressed into a depression when the hinge is installed, which solves the technical problem of complex installation and low efficiency of traditional free anti-collision door hinges. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional schematic diagram of the hinge pre-embedded structure and hinge installation status of a heat-insulating free anti-collision door proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the position of the spacer blocks in the hinge installation state of a hinge embedded structure for a heat-insulating free anti-collision door proposed by the present invention;

[0016] Figure 3 This is an exploded schematic diagram of the hinge installation state of a hinge embedded structure for a heat-insulating free anti-collision door proposed by the present invention;

[0017] Figure 4 This is an exploded diagram of the connection between the embedded inner plug and the door panel profile of the embedded hinge structure of the thermal insulation free anti-collision door proposed by the utility model;

[0018] Figure 5 This is a three-dimensional schematic diagram of the connection between the embedded inner plug and the door panel profile of the embedded structure of the hinge of the thermal insulation free anti-collision door proposed by the utility model.

[0019] In the figure: 1. Spacer; 2. Embedded inner plug; 3. Foam door panel; 4. Door panel profile; 5. Through hole; 6. Connector; 7. Self-tapping screw; 8. Hinge; 9. Clamping bolt; 10. Positioning groove; 11. Through hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-Figure 5, a pre-embedded structure of a heat-insulating free anti-collision door hinge 8, comprising two pads 1 and a pre-embedded inner plug 2, the cross-section of the pre-embedded inner plug 2 being a rounded rectangular shape, the side of the nylon pad 1 being a "convex" shape, the pad 1 and the pre-embedded inner plug 2 being pre-embedded on one side of the foam door panel 3, the two pads 1 and the pre-embedded inner plug 2 being pre-embedded inside the foam door panel 3 during the pre-assembly stage of the heat-insulating free anti-collision door, when the door panel is injected and foamed, the embedded parts will be wrapped and embedded in the polyurethane foam, the embedded parts will be integrated with the door panel, which greatly improves the embedded parts The installation strength is improved. A door panel profile 4 is provided on one side of the foamed door panel 3, and a through hole 5 is provided on the door panel profile 4 to match the embedded inner plug 2. The door panel profile 4 is made of aluminum profile. This is because the current free anti-collision door generally uses an angle grinder or a jigsaw to open a long hole on the side of the door panel after the door panel is foamed in order to insert the hinge 8 into the interior of the door panel. The processing is difficult, and the dimensional accuracy of the opening is not high. The complicated installation process increases the difficulty of operation and reduces production efficiency. The through hole 5 only needs to be adapted to the embedded inner plug 2, and The door panel can be processed before foaming, and the installation process is simple. A connector 6 is installed on the outside of the embedded inner plug 2. The connector 6 is located on the other side of the door panel profile 4, and the length of the connector 6 is longer than the length of the through hole 5. Both ends of the connector 6 are movably connected with self-tapping screws 7, and the other end of the self-tapping screw 7 is movably connected through the door panel profile 4 and the surface of the pad 1 by screw thread. When installing, the embedded inner plug 2 is fixed to the pad 1 on the other side of the door panel profile 4 with the self-tapping screw 7. When the door panel is injection-molded and foamed, the embedded inner plug 2 can be In order to prevent foaming from leaking out, it plays a role in plugging leaks and avoids the trouble of manually cleaning up the overflow later. The embedded inner plug 2 can also play a positioning role, that is, after the self-tapping screw 7 connects the pad 1, the position of the pad 1 in the door panel is fixed, so that the through hole 11 on the pad 1 can be aligned with the clamping bolt 9 on the hinge 8. The surface of the pad 1 is provided with a plurality of through holes 11, and the through holes 11 are used to install the hinge 8. The hinge 8 is installed to the corresponding position of the pad 1, and the clamping bolt 9 passes through the through hole 11 to complete the installation of the hinge 8 on the foam door panel 3.

[0022] This pre-embedded structure embeds the embedded parts when the foam door panel 3 is foamed. In the subsequent installation process, there is no polyurethane foam in the space occupied by the pre-embedded inner plug 2 inside the foam door panel 3. Therefore, there is no need to hollow out the polyurethane foam inside the door panel, and the process of manually picking out the foaming material is omitted when installing the hinge 8. In addition, the embedded parts serve as the internal support of the foam door panel 3, which improves the strength of the door panel and avoids the color steel plate of the door panel from being depressed when the through bolts on the hinge 8 are tightened. The free anti-collision door panel will not be depressed when the hinge 8 is installed, which solves the technical problems of complex installation and low efficiency of the traditional free anti-collision door hinge 8.

[0023] In this embodiment, the foaming includes an outer color steel plate layer and an inner foamed polyurethane layer.

[0024] In this embodiment, a positioning groove 10 adapted to the connecting member 6 is formed in the middle of the door panel profile 4 away from the foam door panel 3 to limit the position of the connecting member 6 .

[0025] In this embodiment, the cushion block 1 is made of nylon, which is suitable for working environments with high humidity and will not rot or rust.

[0026] In this embodiment, a release agent layer is provided on the outer side of the embedded inner plug 2, and the release agent layer adopts polyvinyl alcohol release agent or wax-based release agent, which is used to form a film on the surface of the embedded inner plug 2, so as to facilitate the separation of the embedded inner plug 2 from the foamed polyurethane layer and prevent the embedded inner plug 2 from being unable to be pulled out from the inside of the door panel after foaming molding.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pre-embedded hinge structure for a heat-insulating free-collision door, characterized by: It includes two pads and an embedded inner plug, which are both embedded in one side of the foam door panel, a door panel profile is provided on one side of the foam door panel, and a through hole adapted to the embedded inner plug is provided on the door panel profile, a connecting piece is installed on the outside of the embedded inner plug, the connecting piece is located on the other side of the door panel profile, and the length of the connecting piece is longer than the length of the through hole, both ends of the connecting piece are movably penetrated and connected with self-tapping screws, and the other end of the self-tapping screw is movably passed through the door panel profile and screwed to the surface of the pad block by threads, a plurality of through holes are provided on the surface of the pad block, and the through holes are used to install hinges.

2. The hinge embedded structure for a heat-insulating free-collision door according to claim 1, characterized in that: The foaming layer includes an outer color steel plate layer and an inner foaming polyurethane layer.

3. The hinge embedded structure for a heat-insulating free-collision door according to claim 1, characterized in that: A positioning groove adapted to the connecting piece is provided in the middle of one side of the door panel profile away from the foamed door panel, for limiting the position of the connecting piece.

4. The hinge embedded structure for a heat-insulating free-collision door according to claim 2, characterized in that: The cross section of the embedded inner plug is a rounded rectangular shape, and the side of the pad is a "convex" shape.

5. The hinge embedded structure for a heat-insulating free-collision door according to claim 1, characterized in that: The cushion block is made of nylon.

6. The hinge embedded structure for a heat-insulating free-collision door according to claim 2, characterized in that: A release agent layer is provided on the outer side of the embedded inner plug, and the release agent layer adopts polyvinyl alcohol release agent or wax-based release agent, which is used to form a film on the surface of the embedded inner plug to facilitate separation of the embedded inner plug from the foamed polyurethane layer.

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