Reversed movable turning plate structure at corner of door stopper

Abstract

The invention relates to the technical field of refrigerator manufacturing, in particular to a door stopper corner back-off movable turning plate structure which comprises a mold body used for door liner forming machining, a copper turning strip is arranged on the outer side of the mold body, and a movable turning plate assembly used for door liner corner back-off forming is arranged on the mold body. The movable turning plate assembly comprises a fixing seat arranged on the inner side wall of the mold body, a mounting groove is formed in the inner side of the fixing seat, a spring seat is mounted on the inner bottom wall of the mounting groove, a reset spring is mounted in the spring seat, and one end of the reset spring abuts against the turning block. The sealing rubber strip can be mechanically limited and fixed, so that the sealing rubber strip is firmly clamped with the groove body after being embedded, the problems that in traditional assembly, the sealing rubber strip is prone to shifting and falling off due to door body opening and closing vibration, long-term use aging and the like are effectively solved, and the consistency of the installation position of the sealing rubber strip is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of refrigerator manufacturing technology, specifically to a door catch corner inverted movable flap structure. Background Technology

[0002] During refrigerator use, the sealing performance between the door and the cabinet directly determines the refrigerator's insulation effect and energy efficiency. As a core sealing component, the stability of the sealing strip's installation and fixation is crucial to ensuring sealing performance. In existing technology, refrigerator door liners typically feature Omega grooves to embed and fix the sealing strip. To prevent displacement, the four vertical edges of the Omega groove are generally designed with an inverted interlocking structure. This mechanical locking action firmly limits the sealing strip's position, effectively preventing problems such as movement or detachment of the sealing strip in the vertical edges.

[0003] However, the Omega grooves at the four corners of the refrigerator door cannot be fitted with corresponding snap-fit ​​structures. Due to the lack of snap-fit ​​fixation at the corners, the sealing strips are not effectively limited in the corner areas. After a period of use, the sealing strips at the corners are prone to curling due to factors such as vibration from opening and closing the door, aging and shrinkage of the sealing strips, and temperature changes. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a door catch corner inverted movable flap structure, which has the advantage of enabling inverted forming of the door liner corner to securely fix the sealing strip, thus solving the problem in existing technologies where inverted flaps cannot be installed in the corner area of ​​the refrigerator door liner, causing the sealing strip to easily peel up.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: The door catch corner snap-down movable flap structure includes a mold body for door liner forming and processing, a copper flip bar on the outside of the mold body, and a movable flap assembly on the mold body.

[0006] The movable flip plate assembly includes a fixed seat on the inner side wall of the mold body. The fixed seat has an installation groove on its inner side. A spring seat is installed on the bottom wall of the installation groove. A rotating shaft is movably installed on the spring seat. A flipping block is installed on the rotating shaft. Both ends of the flipping block extend to the end face of the copper flip bar. A return spring is installed in the spring seat. One end of the return spring abuts against the flipping block.

[0007] Preferably, the fixed base is provided with a shaft hole adapted to the rotating shaft, and the rotating shaft passes through the middle of the flipping block and transitions into the shaft hole.

[0008] Preferably, the flipping block has a boss at one end near the return spring, the return spring is sleeved on the outside of the boss, and the length of the boss is not less than the compression stroke of the return spring.

[0009] Preferably, the spring seat is a cylindrical structure with one open end, the open end of the spring seat facing the flipping block, and the inner sidewall of the spring seat is provided with a guide groove.

[0010] Preferably, the return spring is a cylindrical helical spring, and the initial state of the return spring is a pre-compressed state, with a pre-compression amount of 2-5 mm.

[0011] By employing the above technical solution, the present invention provides a door closer corner inverted movable flap structure, which has at least the following beneficial effects: 1. The corner snap-on movable flap structure of this door closer can mechanically limit and fix the sealing strip, so that the sealing strip is firmly engaged with the groove after installation. This effectively solves the problem of the sealing strip shifting or falling off due to door opening and closing vibration and long-term aging in traditional assembly, and ensures the consistency of the sealing strip installation position.

[0012] 2. The door suction corner snap-down movable flip-plate structure, by setting a flip block, a rotating shaft, a return spring and a corner that matches the corner contour of the door liner, realizes the snap-down positioning during door liner molding and automatic reset after demolding, which not only improves the fit and sealing between the door liner and the box surface, but also ensures smooth demolding. Attached Figure Description

[0013] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application: Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a schematic diagram of the external connection structure of the fixing base of the present invention; Figure 3 This is a schematic diagram of the external connection structure of the flip block of the present invention; Figure 4 This is a schematic diagram of the corner structure of the present invention.

[0014] Figure label: 1. Mold body; 2. Copper flip bar; 3. Door shell; 4. Fixed base; 5. Flip block; 6. Return spring; 7. Spring seat; 8. Rotating shaft. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] The following describes, with reference to the accompanying drawings, some embodiments of the door catch corner inverted movable flap structure provided by the present invention.

[0017] Example 1: Combination Figures 1-4 As shown, the door catch corner snap-down movable flap of this embodiment includes a mold body 1 for forming the door shell 3, a copper flip bar 2 is provided on the outer side of the mold body 1, and a movable flap assembly is provided on the mold body 1.

[0018] The movable flip-plate assembly includes a fixed seat 4 located on the inner side wall of the mold body 1. The fixed seat 4 has an installation groove on its inner side. A spring seat 7 is installed on the bottom wall of the installation groove. A rotating shaft 8 is movably installed on the spring seat 7. A flip block 5 is mounted on the rotating shaft 8, and both ends of the flip block 5 extend to the end face of the copper flip bar 2. A return spring 6 is installed in the spring seat 7, and one end of the return spring 6 abuts against the flip block 5. When the mold is demolded after vacuum forming, the flip block 5 rotates around the rotating shaft 8 under the drive of the door shell 3. After the door shell 3 is successfully demolded, the flip block 5 rotates and resets around the rotating shaft 8 due to the upward elastic force of the return spring 6. The shaft hole of the fixed seat 4 and the rotating shaft 8 are interference-fitted to ensure connection stability, avoid loosening or offset during transmission, and ensure the rotation accuracy of the flip block 5.

[0019] Specifically, the fixed base 4 is provided with a shaft hole that is adapted to the rotating shaft 8. The rotating shaft 8 passes through the middle of the flipping block 5 and then transitions into the shaft hole.

[0020] Furthermore, the flipping block 5 has a boss at one end near the return spring 6. The return spring 6 is sleeved on the outside of the boss, and the length of the boss is not less than the compression stroke of the return spring 6. The boss plays a role in precise positioning and guiding of the return spring 6, avoiding the spring from deflection or twisting failure during compression and reset.

[0021] As can be seen from the embodiments, the problem of the sealing strip peeling off due to the lack of undercut at the three corners of the traditional refrigerator door liner is solved. It effectively improves the sealing performance between the door and the cabinet surface, reduces cold air leakage, reduces the compressor starting frequency, and improves the refrigerator's energy efficiency ratio.

[0022] Example 2: Combination Figures 2-4 As shown, based on Embodiment 1, the spring seat 7 is a cylindrical structure with one open end. The open end of the spring seat 7 faces the flip block 5, and the inner sidewall of the spring seat 7 is provided with a guide groove. The guide groove on the inner sidewall slides in cooperation with the guide protrusion of the flip block 5, providing precise guidance for the rotation of the flip block 5 and avoiding the problems of offset and jamming when the flip block 5 moves.

[0023] The return spring 6 is a cylindrical helical spring, and the initial state of the return spring 6 is a pre-compressed state with a pre-compression amount of 2-5mm. This allows the spring to always maintain a certain elasticity, ensuring that the initial position of the flip block 5 accurately fits the corner of the door frame 3, achieving instant snap-on positioning. At the same time, the pre-compression design can shorten the spring response time, allowing the flip block 5 to quickly return to its original position after demolding.

[0024] As can be seen from the above embodiments: the copper flip bar 2 is embedded and installed inside the mold body 1, the position of the door shell 3 is adjusted so that it corresponds to the forming area of ​​the copper flip bar 2 and is positioned, the equipment is started to perform vacuum forming of the door shell 3, during the forming process, the corner and the corner of the door shell 3 form an inverted positioning, after vacuum forming is completed, the demolding operation is performed, the door shell 3 drives the flipping block 5 to rotate around the rotating shaft 8 to achieve smooth demolding, after demolding, the reset spring 6 releases the upward elastic force, driving the flipping block 5 to rotate around the rotating shaft 8 to reset.

[0025] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A door catch corner snap-down movable flap structure, comprising a mold body (1) for forming and processing the door insert (3), wherein a copper flip bar (2) is provided on the outer side of the mold body (1), characterized in that: The mold body (1) is equipped with a movable flip plate assembly.

2. The movable flip plate assembly includes a fixed seat (4) provided on the inner side wall of the mold body (1). The fixed seat (4) has an installation groove on its inner side. A spring seat (7) is installed on the bottom wall of the installation groove. A rotating shaft (8) is movably installed on the spring seat (7). A flip block (5) is installed on the rotating shaft (8). Both ends of the flip block (5) extend to the end face of the copper flip bar (2). A reset spring (6) is installed in the spring seat (7). One end of the reset spring (6) abuts against the flip block (5).

3. The door catch corner snap-on movable flap structure according to claim 1, characterized in that: The fixed base (4) is provided with a shaft hole that is adapted to the rotating shaft (8). The rotating shaft (8) passes through the middle of the flipping block (5) and then transitions into the shaft hole.

4. The door closer corner snap-on movable flap structure according to claim 1, characterized in that: The flipping block (5) has a boss at one end near the return spring (6), the return spring (6) is sleeved on the outside of the boss, and the length of the boss is not less than the compression stroke of the return spring (6).

5. The door closer corner snap-on movable flap structure according to claim 1, characterized in that: The spring seat (7) is a cylindrical structure with one end open. The open end of the spring seat (7) faces the flip block (5), and the inner side wall of the spring seat (7) is provided with a guide groove.

6. The door closer corner snap-on movable flap structure according to claim 1, characterized in that: The reset spring (6) is a cylindrical helical spring, and the initial state of the reset spring (6) is a pre-compressed state with a pre-compression amount of 2-5 mm.

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