A door handle structure for a refrigeration appliance

Abstract

The utility model provides a kind of refrigeration equipment door handle structure, is set to the door body and box of refrigeration equipment, including handle, the handle includes handle bar and handle handle, the center of the handle handle is hinged in the lateral wall of the door body opening side, so that the handle can rotate with the center of the handle handle as pivot under tension;Auxiliary part, is set to the opening side of the box, the handle is rotated after in the door body closed state, at least part is contacted with the auxiliary part, provides reaction force for the opening of the door body, when the upper end or lower end of handle is pulled, handle rotates with rotating shaft as pivot, so that the lug of handle rear side is contacted with auxiliary part to provide forward reaction force for the opening of the door body, reduce the tension required when opening door, effectively solve the problem of opening door with effort, improve the use experience of user.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a door handle structure for refrigeration equipment. Background Technology

[0002] Currently, most refrigeration equipment on the market, such as display cases, upright refrigerators, and freezers, have door handles. Users open the door by pulling the handle. To ensure the airtightness of the refrigeration unit and prevent heat exchange between the interior and exterior when the door is closed, a magnetic sealing strip is installed on the contact surface between the door and the unit. When the door is closed, the magnetic strip attracts the metal plate on the side panel of the unit, thus sealing the unit. Furthermore, when refrigeration equipment, especially refrigeration units, operates with the door closed, a certain negative pressure is generated inside the unit. The combined effect of the magnetic strip's attraction and the negative pressure environment significantly increases the resistance to opening the door. Users must apply considerable pulling force using the door handle to overcome the magnetic attraction and negative pressure resistance when opening the door.

[0003] Currently, conventional door handles on the market are usually an inner handle recessed into the door frame or an outer handle protruding from the side of the door. Opening such handles relies entirely on the user's pulling force, especially for deep-freezing equipment (below -40°C, etc.), where the negative pressure inside the cabinet is greater than that of a conventional freezer, making it difficult to open the door. Therefore, a door handle that can provide assistance in opening the door is needed. Utility Model Content

[0004] To address the problem of difficulty in opening the doors of refrigeration equipment in existing technologies, this utility model provides a door handle structure for refrigeration equipment, which is installed on the door and housing of the refrigeration equipment, including:

[0005] The handle includes a handle bar and a handle, the center of which is hinged to the side wall of the door opening side, so that the handle can rotate around the center of the handle as an axis under pulling force.

[0006] An auxiliary part is provided on the opening side of the box body. When the handle is rotated in the closed state, it at least partially contacts the auxiliary part, providing a reaction force for opening the door body.

[0007] Specifically, a rotating shaft is provided at the center of the handle, and a rotating reset mechanism is provided on the side wall of the door opening side, with the rotating shaft hinged in the rotating reset mechanism.

[0008] Specifically, the rotary reset mechanism includes a fixed cover, a torsion spring disposed in the fixed cover, and a pressure plate, a flat washer, a gasket, and a retaining ring sequentially installed on the outer periphery of the rotating shaft.

[0009] Specifically, the inner surface of the fixed cover is provided with a flanged circular hole, the torsion spring is sleeved on the outer periphery of the flanged circular hole, a middle stop block is provided on one side of the flanged circular hole, side stop blocks are symmetrically provided on both sides of the middle stop block, a sliding groove is provided between the flanged circular hole and the middle stop block, and the two ends of the torsion spring are respectively clamped on both sides of the middle stop block.

[0010] Specifically, the side wall of the rotating shaft is provided with an axial groove, and the end of the rotating shaft away from the handle is provided with a circumferential retaining spring groove. The pressure plate is annular, and a card matching the groove is provided on the inner circumference of the pressure plate. The card is placed in the groove. A paddle perpendicular to the annular surface of the pressure plate is provided on the outer circumference of the pressure plate. The paddle is placed in a sliding groove. The flat washer and the gasket are arranged sequentially on the pressure plate. The retaining spring is engaged in the retaining spring groove.

[0011] Specifically, the handle is provided with a guide groove, the side wall of the door is provided with a guide block, the guide block includes a guide post and a fixing cap, the guide post passes through the guide groove, and the fixing cap is connected to the guide post.

[0012] Specifically, the guide grooves are symmetrically arranged on the upper and lower sides of the handle, and a semi-circular protrusion is provided on the side of the guide groove away from the handle.

[0013] Specifically, the handle is located on the side wall of the door, and a connecting part is provided at the front end of the handle. The connecting part is bent toward one side of the door, and the handle bar is fixedly connected to the connecting part.

[0014] Specifically, the auxiliary part is an auxiliary plate that is fixedly installed on the side wall of the housing.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model provides a door handle structure for refrigeration equipment. When the upper or lower end of the handle is pulled, the handle rotates around the rotation axis, causing the protrusion on the rear side of the handle to contact the auxiliary part and provide a forward reaction force for opening the door. This reduces the pulling force required to open the door, effectively solves the problem of difficulty in opening the door, and improves the user experience.

[0017] 2. This utility model is equipped with a rotation reset mechanism at the hinge joint between the handle and the door body, which automatically resets the handle after the user releases it.

[0018] 3. The handle bar used in this utility model is long and narrow, and users can grab the handle bar from the top or bottom, so that people of different heights can open the door. Attached Figure Description

[0019] Figure 1 This is an assembly diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the handle structure of this utility model;

[0021] Figure 3 This is an assembly drawing of the rotary reset structure of this utility model;

[0022] Figure 4 This is an exploded view of the handle structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the fixed cover structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the tablet compression structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the handle mounting position structure of this utility model;

[0026] Figure 8 This is a schematic diagram of the handle being pulled in this utility model.

[0027] Reference numerals: 1. Handle; 11. Handle lever; 12. Handle handle; 121. Protrusion; 122. Guide groove; 123. Rotating shaft; 1231. Slot; 1232. Snap ring slot; 124. Connecting part; 13. Rotation and reset mechanism; 131. Fixing cover; 1311. Flanged round hole; 1312. Middle stop block; 1313. Side stop block; 132. Torsion spring; 133. Pressure plate; 1331. Card; 1332. Paddle; 134. Flat washer; 135. Washer; 136. Snap ring; 2. Auxiliary plate; 3. Door body; 31. Guide block; 311. Guide post; 312. Fixing cap; 4. Box body. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. The specific implementation of the present utility model will be described in detail below with reference to specific embodiments.

[0029] like Figures 1-8As shown, this utility model addresses the problem in existing technologies where the negative pressure environment generated inside the cabinet during operation of the door seal magnetic strip results in high door opening resistance. While retaining the user's habit of opening the door via an external pull handle, it provides a novel handle structure applicable to refrigeration equipment such as refrigerators, display cases, and freezers. The refrigeration equipment includes a cabinet 4 with an internal cavity and a door 3 hinged to one side of the cabinet 4 for opening and closing the internal cavity. The handle structure includes a handle 1 and an auxiliary part. The handle 1 includes a handle rod 11 and a handle 12. The handle 12 is hinged to the side wall of the door 3 on the opening side, allowing the handle 1 to rotate around its center axis under pulling force. The auxiliary part is located on the opening side of the cabinet 4. When the handle 1 rotates in the closed state of the door 3, it at least partially contacts the auxiliary part, providing a reaction force for opening the door 3.

[0030] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, the handle 1 includes a handle rod 11 and a handle 12 fixedly connected. The handle rod 11 is elongated and serves as the force-bearing part for the user to pull, allowing the user to pull the handle 1 from the top or bottom of the handle rod 11. Typically, the height of refrigeration equipment is around two meters, so the height of its door 3 is also relatively high. The elongated handle rod 11 facilitates opening the door for people of different heights. In another embodiment, the handle includes a handle and C-shaped grips at the top and bottom of the handle, allowing the user to grip and pull the grips to open the door.

[0031] The handle 12 is located on the side wall of the door body 3. A rotating shaft 123, hinged to the door body 3, is located at the center of the handle 1. When the handle 1 is pulled, the handle 1 rotates around the rotating shaft 123. A connecting part 124 is provided at the front end of the handle 122, and a through hole is provided in the connecting part 124. The connecting part 124 is fixedly connected to the handle rod 11 by bolts. The connecting part 124 is bent towards one side of the door body 3, so that the handle rod 11 is located on the front side of the door body 3, making it convenient for the user to pull and open the door. As another embodiment of the handle 12, a through hole is provided at the center of the handle, and a hinge shaft is provided on the side wall of the door body. The through hole is inserted into and hinged in the hinge shaft, so that the handle rotates around the hinge shaft.

[0032] An auxiliary part is located on the rear side of the handle 12, and is configured according to the installation position of the handle 1. If the handle 1 is installed in the door body 3, the auxiliary part can be the part of the housing 4 that the handle 1 touches when it rotates. As one embodiment of this application, such as Figure 1 , Figure 7 and Figure 8As shown, the auxiliary part consists of one or more auxiliary plates 2 fixed to the side wall of the housing 4 by bolts. A semi-circular protrusion 121 is provided on the side of the guide groove 122 away from the handle 11, reducing the rotation angle of the handle 1. When the handle 1 is pulled from the top, the handle 1 rotates around the rotation axis 123, causing the protrusion 121 at the lower end of the handle 12 to contact the auxiliary plate 2, providing a forward reaction force for opening the door 3. When the handle 1 is pulled from the bottom, the handle 1 rotates around the rotation axis 123, causing the protrusion 121 at the upper end of the handle 12 to contact the auxiliary plate 2, providing a forward reaction force for opening the door 3. With the combined force of the pulling force and the reaction force, the door 3 effectively reduces the force required to open the door.

[0033] Furthermore, such as Figure 2 , Figure 3 and Figure 4 As shown, to ensure that the handle 1 automatically returns to its original position after the door is opened, the rotating shaft 123 is hinged to the door body 3 via a rotating reset mechanism 13, which automatically resets the handle 1. Guide grooves 122 are symmetrically arranged on the upper and lower sides of the handle 12, and guide blocks 31 are provided on the side wall of the door body 3 at the guide grooves 122. The guide blocks 31 and the guide grooves 122 limit the rotation angle of the handle 1.

[0034] like Figures 3-7 As shown, the side wall of the door body 3 is provided with a groove, and the rotary reset mechanism 13 is located at the through hole. The rotary reset mechanism 13 and the handle 1 are fixedly installed on the side wall of the door body 3 by bolts. The rotary reset mechanism 13 includes a fixed cover 131, a torsion spring 132 disposed in the fixed cover 131, and a pressure plate 133, a flat washer 134, a washer 135 and a retaining spring 136 sequentially installed on the outer periphery of the rotating shaft 123. The rotary reset mechanism 13 can automatically reset to a vertical state after the handle 1 is released by the torque of the torsion spring 132.

[0035] A flanged circular hole 1311 is provided at the center of the inner surface of the fixed cover 131. A central stop block 1312 is provided on one side of the flanged circular hole 1311, and side stops block 1313 are symmetrically provided on both sides of the central stop block 1312. A sliding groove is provided between the flanged circular hole 1311 and the central stop block 1312. A torsion spring 132 is sleeved on the outer periphery of the flanged circular hole 1311, and the two ends of the torsion spring 132 cross and clamp onto the two sides of the central stop block 1312. The side stops block 1313 is used to limit the movement of the ends of the torsion spring 132 and can move between the central stop block 1312 and the side stops block 1313. The fixed cover 131 is provided with at least two bolt holes, and the fixed cover 131 and the handle 12 are connected by bolts and fixedly installed on the door body 3.

[0036] The side wall of the rotating shaft 123 is provided with an axial groove 1231. Preferably, there are two grooves 1231, which are symmetrically arranged on both sides of the rotating shaft 123. The pressure plate 133 is installed in the groove 1231. The end of the rotating shaft 123 away from the handle 12 is provided with a circumferential retaining spring groove 1232. The retaining spring 136 is engaged in the retaining spring groove 1232. A flat washer 134 and a washer 135 are provided between the pressure plate 133 and the retaining spring 136 and are sleeved on the rotating shaft. The retaining spring 136 limits the pressure plate 133, the flat washer 134 and the washer 135.

[0037] The tablet 133 is annular, and a card 1331 matching the slot 1231 is provided on the inner circumference of the tablet 133. The card 1331 is engaged in the slot 1231, so that the tablet 133 rotates synchronously with the rotating shaft 123. A lever 133 is provided on the outer circumference of the tablet 133. The lever 133 is perpendicular to the annular surface of the tablet 133, and the width of the lever 133 is not wider than the width of the middle stop block 1312. In the initial state, the paddle 133 is located in the groove between the middle stop block 1312 and the flanged round hole 1311. When the handle 1 is pulled from the upper or lower end, the handle 1 rotates around the rotating shaft 123. The paddle 133 rotates clockwise or counterclockwise, which actuates one end of the torsion spring 132. The spiral body of the torsion spring 132 undergoes torsional elastic deformation. After releasing the paddle, the elastic deformation stored in the torsion spring 132 is released, causing the torsion spring 132 to rotate in the opposite direction. The handle 1 automatically returns to its original position under the action of the pressure plate 133.

[0038] The flat washer 134 is disposed on the pressure plate 133, located between the washer 135 and the pressure plate 133, providing a flat contact surface for the pressure plate 133, reducing friction when the pressure plate 133 rotates, and ensuring that the washer 135 and the retaining spring 136 do not touch the stop block on the inner surface of the fixed cover 131 when they rotate with the rotating shaft 123.

[0039] Washer 135 is placed on flat washer 134 and is made of rubber. It is used to compensate for axial assembly tolerances and prevent pressure plate 133, flat washer 134 and retaining spring 136 from loosening.

[0040] The handle 12 is provided with a guide groove 122 to provide guidance and limit for the rotation of the handle 1. The guide groove 122 is preferably symmetrically arranged on the upper and lower sides of the handle 12. The side wall of the door body 3 is provided with a guide block 31, which includes a guide post 311 and a fixing cap 312. The guide post 311 is threaded to the side wall of the door body 3. After the guide post 311 and the guide groove 122 are properly matched, the fixing cap 312 is threaded to the guide post 311 to provide an external limit for the handle 12.

[0041] When the handle 1 is rotated, the guide post 311 slides along the guide groove 122, providing guidance for the rotation of the handle 1 and limiting the rotation angle of the handle 1.

[0042] During installation, first install the auxiliary plate 2 and guide post 311 onto the door body 3, assemble the handle 1 and the rotary reset mechanism 13, install the guide groove 122 of the handle 12 into the guide post 311, align the bolt hole of the handle 12 with the hole on the side wall of the housing 4, and use bolts to fix the handle 12 and the rotary reset mechanism 13, thereby completing the assembly of the handle 1.

[0043] When in use, the user pulls the upper or lower end of the handle 1, and the handle 1 rotates around the rotating shaft 123. The protrusion 121 contacts the auxiliary part, providing a forward reaction force for the opening of the door 3, so as to facilitate the opening of the door 3. After the user releases the handle, the handle 1 automatically returns to its original position under the action of the torsion spring 132.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A door handle structure for a refrigeration equipment, disposed on the door (3) and the cabinet (4) of the refrigeration equipment, characterized in that, include: The handle (1) includes a handle bar (11) and a handle (12). The center of the handle (12) is hinged to the side wall of the door (3) on the opening side, so that the handle (1) can rotate around the center of the handle (12) under the pull force. An auxiliary part is provided on the opening side of the box (4). After the handle (1) is rotated in the closed state of the door (3), it will at least partially contact the auxiliary part and provide a reaction force for opening the door (3).

2. The door handle structure for refrigeration equipment according to claim 1, characterized in that, The handle (12) has a rotating shaft (123) at its center, and the side wall of the door (3) on the opening side is provided with a rotating reset mechanism (13), and the rotating shaft (123) is hinged in the rotating reset mechanism (13).

3. The door handle structure for refrigeration equipment according to claim 2, characterized in that, The rotary reset mechanism (13) includes a fixed cover (131), a torsion spring (132) disposed in the fixed cover (131), and a pressure plate (133), a flat washer (134), a gasket (135) and a retaining ring (136) sequentially installed on the outer periphery of the rotating shaft (123).

4. The door handle structure for refrigeration equipment according to claim 3, characterized in that, The inner surface of the fixed cover (131) is provided with a flanged circular hole (1311). The torsion spring (132) is sleeved on the outer periphery of the flanged circular hole (1311). A middle stop block (1312) is provided on one side of the flanged circular hole (1311). Side stops block (1313) are symmetrically provided on both sides of the middle stop block (1312). A sliding groove is provided between the flanged circular hole (1311) and the middle stop block (1312). The two ends of the torsion spring (132) are respectively clamped on both sides of the middle stop block (1312).

5. The door handle structure for refrigeration equipment according to claim 4, characterized in that, The side wall of the rotating shaft (123) is provided with an axial groove (1231), and the end of the rotating shaft (123) away from the handle (12) is provided with a circumferential retaining spring groove (1232). The pressure plate (133) is annular, and a card (1331) matching the groove (1231) is provided on the inner circumference of the pressure plate (133). The card (1331) is provided in the groove (1231). A paddle (1332) perpendicular to the annular surface of the pressure plate (133) is provided on the outer circumference of the pressure plate (133). The paddle (1332) is provided in the sliding groove. The flat washer (134) and the washer (135) are arranged on the pressure plate (133) in sequence. The retaining spring (136) is engaged in the retaining spring groove (1232).

6. The door handle structure for refrigeration equipment according to claim 1, characterized in that, The handle (12) is provided with a guide groove (122), and the side wall of the door body (3) is provided with a guide block (31). The guide block (31) includes a guide post (311) and a fixing cap (312). The guide post (311) passes through the guide groove (122), and the fixing cap (312) is connected to the guide post (311).

7. The door handle structure for refrigeration equipment according to claim 6, characterized in that, The guide groove (122) is symmetrically arranged on the upper and lower sides of the handle (12), and a semi-circular protrusion (121) is provided on the side of the guide groove (122) away from the handle (11).

8. The door handle structure for refrigeration equipment according to claim 1, characterized in that, The handle (12) is located on the side wall of the door body (3). The front end of the handle (12) is provided with a connecting part (124). The connecting part (124) is bent toward the side of the door body (3). The handle (11) is fixedly connected to the connecting part (124).

9. The door handle structure for refrigeration equipment according to claim 1, characterized in that, The auxiliary part is an auxiliary plate (2) that is fixedly installed on the side wall of the box (4).

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