A buffer device and a refrigerator

Abstract

The utility model belongs to refrigeration equipment technical field, concretely relates to a buffer device and refrigerator. The base is equipped with the recessed installation area and sliding groove, the sliding block is slidably installed in the sliding groove, the hydraulic damper is placed in the installation area, one end of the hydraulic damper is connected on the bottom inner wall of the base, the other end is connected on the first surface of the sliding block, the spring is placed in the installation area, and is located between the bottom inner wall of the base and the first surface of the sliding block. The utility model adopts the combination type buffer of hydraulic damper and spring, and the buffering performance is better than using only the spring. Under the action of the hydraulic damper, the sliding block can be returned to the position, and the utility model can effectively solve the situation that the ordinary refrigerator door body cannot be closed to the position, and can also be applied to the inclined door body. The combination of the spring and the hydraulic damper better balances the gravity inertia of the door body, makes the door body fall more stable, and guarantees the smoothness and safety of the refrigerator door closing.

Description

Technical Field

[0001] This utility model belongs to the field of refrigeration equipment technology, specifically relating to a buffer device and a freezer. Background Technology

[0002] Currently, common freezers come in two main types: those with a flat opening and those with a slanted opening. Horizontal freezers have a door frame at the top for mounting the door (such as a glass door), and the freezer is opened and closed by pushing or pulling the door. To prevent the door from hitting the frame with excessive force when closing, causing noise or deformation, a buffer device is installed at the door-frame mounting point. However, ordinary buffer devices only use springs for cushioning or rebound, and in practice, it has been found that the door may not close completely due to the rebound. Furthermore, for freezers with slanted openings, the door's inertia poses safety hazards, such as the door falling back after being released, or the door falling too quickly and pinching a hand when closing. Ordinary buffer devices cannot effectively balance the inertial force. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a buffer device and a freezer.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: A buffer device includes: a base, in which a recessed mounting area and a sliding groove are provided; it also includes: a hydraulic damper, a spring and a slider, the slider being slidably mounted in the sliding groove; the hydraulic damper is placed in the mounting area, one end of the hydraulic damper is connected to the bottom inner wall of the base, and the other end is connected to the first surface of the slider; the spring is placed in the mounting area and is located between the bottom inner wall of the base and the first surface of the slider.

[0005] Furthermore, one end of the spring is connected to the bottom inner wall of the base, and the other end is connected to the first surface of the slider.

[0006] Furthermore, the spring is located below the hydraulic damper.

[0007] Furthermore, the slider has a side protrusion that slides and engages with the sliding groove; the slider also has an inner groove, a first boss and a second boss, with the inner groove located between the upwardly protruding first boss and second boss.

[0008] Furthermore, the top of the sliding groove is provided with an arc-shaped downward limiting groove.

[0009] Furthermore, the base is provided with a slot, the width of which is greater than the bottom width of the first protrusion.

[0010] Furthermore, the hydraulic damper includes a hydraulic chamber and a hydraulic rod, with a spring fitted onto the hydraulic rod.

[0011] A freezer includes a cabinet body, a door frame for installing a door body is provided on the top of the cabinet body, and a buffer structure is installed at the relative sliding position of the door body and the door frame, the buffer structure being the aforementioned buffer device.

[0012] Furthermore, the freezer features an angled opening design with buffer structures installed on both the left and right sides.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The buffer adopts a combination of hydraulic damper and spring, which has better buffering performance than using spring alone; under the action of hydraulic damper, the slider can return to its original position, which can ensure that the door is closed in place when applied to the door.

[0014] 2. The slider is connected to the spring and hydraulic damper respectively, making the working process relatively smooth, stable and safe. Especially for tilted cabinet-type freezers, the combination of spring and hydraulic damper better balances the gravitational inertia of the door, making the door fall more smoothly and improving safety.

[0015] 3. The arc trajectory design of the limiting groove, combined with the slot, means that when the door is opened, the side protrusion moves to the limiting groove, and the first protrusion is engaged in the slot to lock the position and prevent the door from falling back automatically; when pulled down, the side protrusion moves along the arc trajectory, the first protrusion rises and disengages from the slot, and the door falls smoothly under the combined buffering action of the spring and hydraulic damper.

[0016] 4. This utility model provides a hydraulic + spring combined damper. This product can be applied to freezers to effectively solve the problem of ordinary freezer doors not closing properly. It can also be applied to tilted doors to ensure the smoothness and safety of freezer door closing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the buffer structure in this utility model.

[0018] Figure 2 This is a top view of the buffer structure.

[0019] Figure 3 for Figure 2 Sectional view at point AA.

[0020] Figure 4 This is a schematic diagram of the slider's structure.

[0021] Figure 5 This is a schematic diagram of the freezer door structure.

[0022] Figure 6 This is a schematic diagram showing the installation location of the buffer structure.

[0023] Figure 7 This is a schematic diagram showing the installation relationship between the buffer structure and the door.

[0024] Figure 8 This is a schematic diagram of the internal structure of the buffer in Example 3.

[0025] in: 1. Door frame, 2. Door body, 3. Buffer structure 201. Convex body 31. Base; 32. Hydraulic damper; 33. Spring; 34. Slider. 311. Installation area; 312. Sliding groove; 313. Limiting groove; 314. Card slot. 321. Hydraulic chamber; 322. Hydraulic rod. 341. Inner groove; 342. Side protrusion; 343. First boss; 344. Second boss. Detailed Implementation

[0026] To facilitate understanding of this utility model, it will be described in more detail below with reference to the accompanying drawings and specific embodiments. However, this utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0027] Example 1: Combination Figure 1-4 A damper device includes: a base 31, a hydraulic damper 32, a spring 33, and a slider 34. The base 31 has a recessed mounting area 311 and a sliding groove 312, the sliding groove 312 being a groove set according to the movement trajectory of the slider 34. The slider 34 has a side protrusion 342 that slides and engages with the sliding groove 312, the side protrusion 342 being embedded in the sliding groove 312, allowing the slider 34 to slide back and forth along the sliding groove 312. The slider 34 also has an inner groove 341, a first boss 343, and a second boss 344, the inner groove 341 being located between the upwardly protruding first boss 343 and second boss 344. The hydraulic damper 32 and the spring 33 are placed in the mounting area 311, with the spring 33 located below the hydraulic damper 32. One end of the hydraulic damper 32 is connected to the bottom inner wall of the base 31, and the other end is connected to the first surface of the slider 34, and the spring 33 is also installed in the same way.

[0028] Combination Figure 5-7 For ease of description and annotation in the diagram, the aforementioned buffer device is referred to as buffer structure 3 when applied to a freezer. The freezer includes a cabinet body, with a door frame 1 at the top for mounting the door 2. The buffer structure 3 is installed at the relative sliding position between the door 2 and the door frame 1. The side of the door 2 has an outwardly protruding protrusion 201. During installation, the protrusion 201 engages in the inner groove 341, after which the door 2 and the slider 34 move synchronously.

[0029] When the door is closed, the hydraulic damper 32 and spring 33 are in their natural state. Under the action of external force, the door 2 moves, and the slider 34 moves accordingly. When closing, both the hydraulic damper 32 and spring 33 play a buffering role, and the buffering performance is better than using only the spring. Both are installed with their ends connected to the base 31 and the slider 34 respectively, so the door 2 will close smoothly and steadily, with virtually no impact or rebound.

[0030] Example 2: Based on the structure of Example 1, the top of the sliding groove 312 is provided with an arc-shaped downward limiting groove 313. The base 31 is provided with a retaining groove 314, the width of the groove opening of the retaining groove 314 being greater than the bottom width of the first boss 343.

[0031] When the freezer has an inclined opening design, the buffer structure 3 is installed on the left and right sides of the opening. When the side protrusion 342 moves along the sliding groove 312 to the limiting groove 313, it moves downward along the arc trajectory of the limiting groove 313. At this time, the arc surface generates a vertical component force, which causes the slider 34 to stop in the limiting groove 313. The door 2 will not automatically fall back. When an external force is applied, the slider 34 moves in the opposite direction along the arc trajectory. The first protrusion 343 engages in the slot 314 to assist in position locking, allowing the hands to be completely released for easy access to or placement of items in the freezer. The slider 34 moves in the opposite direction along the arc trajectory of the limiting groove 313, the first protrusion 343 rises and disengages from the slot 314, and the door 2 falls smoothly under the combined buffering action of the hydraulic damper 32 and the spring 33.

[0032] Example 3: Unlike Example 1, the hydraulic damper 32 includes a hydraulic chamber 321 and a hydraulic rod 322, with the spring 33 fitted onto the hydraulic rod 322. Figure 8 Understood. The original length of spring 33 is not less than the length of hydraulic rod 322 in its non-working state. In the initial stage of closing the door, hydraulic rod 322 acts as a buffer, and spring 33 also acts as a buffer when the door is almost closed, which can effectively prevent situations such as fingers being pinched.

[0033] This invention employs a combined damper of hydraulic damper 32 and spring 33, providing better buffering performance than using only a spring. Under the action of hydraulic damper 32, slider 34 can return to its original position, ensuring that the door 2 closes completely when applied to the freezer door 2. Slider 34 is connected to spring 33 and hydraulic damper 32 respectively, resulting in a smoother, more stable, and safer operation. Especially for freezers with tilted openings, the combination of spring 33 and hydraulic damper 32 better balances the gravitational inertia of the door 2, making the door 2 fall more smoothly and improving safety. The arc trajectory design of the limiting groove 313, combined with the slot 314, allows the side protrusion 342 to move to the limiting groove 313 when the door 2 is opened, and the first protrusion 343 to be engaged in the slot 314 to achieve position locking and prevent the door 2 from falling back automatically; when pulled down, the side protrusion 342 moves along the arc trajectory, the first protrusion 343 rises and disengages from the slot 314, and the door 2 falls smoothly under the combined buffering action of the spring 33 and the hydraulic damper 32.

[0034] This utility model provides a hydraulic + spring combined damper. When applied to freezers, this product can effectively solve the problem of ordinary freezer doors not closing properly. It can also be applied to tilted doors to ensure the smoothness and safety of freezer door closing.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A buffer device, comprising: The base (31) is characterized in that it has a recessed mounting area (311) and a sliding groove (312). It also includes: a hydraulic damper (32), a spring (33) and a slider (34), the slider (34) being slidably installed in the sliding groove (312); the hydraulic damper (32) being placed in the mounting area (311), one end of the hydraulic damper (32) being connected to the bottom inner wall of the base (31) and the other end being connected to the first surface of the slider (34); the spring (33) being placed in the mounting area (311) and located between the bottom inner wall of the base (31) and the first surface of the slider (34).

2. The buffer device according to claim 1, characterized in that, One end of the spring (33) is connected to the bottom inner wall of the base (31), and the other end is connected to the first surface of the slider (34).

3. The buffer device according to claim 2, characterized in that, The spring (33) is located below the hydraulic damper (32).

4. The buffer device according to any one of claims 1-3, characterized in that, The slider (34) has a side protrusion (342) that is slidably fitted with the sliding groove (312); the slider (34) also has an inner groove (341), a first boss (343) and a second boss (344), and the inner groove (341) is located between the upward protruding first boss (343) and second boss (344).

5. The buffer device according to claim 4, characterized in that, The top of the sliding groove (312) is provided with an arc-shaped downward limiting groove (313).

6. The buffer device according to claim 5, characterized in that, The base (31) is provided with a slot (314), and the width of the slot (314) is greater than the bottom width of the first boss (343).

7. The buffer device according to claim 1, characterized in that, The hydraulic damper (32) includes a hydraulic chamber (321) and a hydraulic rod (322), with a spring (33) fitted onto the hydraulic rod (322).

8. A freezer, comprising a cabinet body, wherein a door frame (1) for installing a door (2) is provided above the cabinet body, characterized in that, A buffer structure (3) is installed at the relative sliding position between the door body (2) and the door frame (1), and the buffer structure (3) is the buffer device described in any one of claims 1-7.

9. The freezer according to claim 8, characterized in that, The freezer has an inclined opening design, and the buffer structure (3) is installed on the left and right sides.

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