Damping device with strong magnetic piston rod

Abstract

The utility model discloses a damping device with a strong magnetic piston rod, which comprises a cylinder barrel and a damping structure movably arranged in the cylinder barrel, the end part of the cylinder barrel is provided with a connecting structure which abuts against and is matched with the damping structure, and the connecting structure is internally provided with a magnetic unit which is used for quickly and tightly attracting the damping structure. The refrigerator door is reasonable in structural design, when the refrigerator door is closed to form a certain angle with the cabinet body, the piston rod is quickly and tightly attracted to the first magnetic part through attraction of the first magnetic part and the second magnetic part, the magnetic unit is of a strong magnetic structure, attraction force is good, rebound of the refrigerator door caused by insufficient inertia or excessive force is prevented, and the refrigerator door is safe and reliable. Therefore, the refrigerator door cannot be closed tightly, loss of a large amount of cold air is avoided, freshness of food in the refrigerator is guaranteed, and energy consumption of the refrigerator is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of damper, especially with strong magnetic piston rod's damping device. BACKGROUND

[0002] The refrigerator is a kind of refrigeration equipment that keeps constant low temperature, and it is also a kind of civil product that keeps constant low temperature cold state of food or other articles. The refrigerator includes refrigerator cabinet and refrigerator door in structure, and the rotation connection of the refrigerator door relative to the refrigerator cabinet is realized by the rotation cooperation of pin shaft between the refrigerator door and the refrigerator cabinet.

[0003] The rotation connection structure of the refrigerator door and the refrigerator cabinet in the prior art has the following problems: in the process of closing the refrigerator door, the user pushes the refrigerator door, and after releasing the hand, the refrigerator door continues to rotate under the action of inertia, which may cause the refrigerator door to be unable to be tightly locked due to insufficient inertia, or the door rebounds after being closed due to the user's large force, and both cases will cause the refrigerator door to be unable to be tightly closed, resulting in a large amount of cold air loss in the refrigerator, affecting the storage of food in the refrigerator and increasing the energy consumption of the refrigerator. INVENTION CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a damping device with a strong magnetic piston rod in view of the current status of the prior art.

[0005] The technical scheme adopted by the utility model to solve the above technical problem is as follows: a damping device with a strong magnetic piston rod, comprising a cylinder and a damping structure movably arranged in the cylinder, a connecting structure for abutting and cooperating with the damping structure is arranged at the end of the cylinder, and a magnetic unit for quickly and tightly attracting the damping structure is arranged in the connecting structure.

[0006] Preferably, the connecting structure comprises a connecting sleeve clamped at the end of the cylinder, a groove for mounting the magnetic unit is arranged on the side of the connecting sleeve close to the damping structure, and the magnetic unit comprises a first magnetic part fixedly arranged in the groove.

[0007] Preferably, the damping structure comprises a piston rod movably arranged in the cylinder, a second magnetic part for magnetic attraction cooperating with the first magnetic part is arranged on the end of the piston rod close to the magnetic unit, and the piston rod moves in the cylinder; when the second magnetic part is close to the first magnetic part, the second magnetic part drives the piston rod to quickly attract the first magnetic part.

[0008] Preferably, the damping structure further comprises a throttle valve structure for throttling and controlling the moving speed of the piston rod, the throttle valve structure is sleeved on the piston rod, and the throttle valve structure is arranged at the end close to the magnetic unit.

[0009] Preferably, the cylinder is sleeved with a front end cover unit at one end away from the connecting structure, the front end cover unit is provided with an end face hole for penetrating the piston rod, the piston rod extends to the outside of the cylinder through the end face hole, the piston rod is sleeved with a reset spring, one end of the reset spring is in abutment connection with the throttle valve structure, and the other end of the reset spring is in abutment connection with the front end cover unit.

[0010] Preferably, the piston rod is made of a magnetic material, and the end of the piston rod is magnetically attracted to the first magnetic piece.

[0011] Compared with the prior art, the refrigerator door is closed to a certain angle with the cabinet, the piston rod is quickly and tightly attracted to the first magnetic piece through the attraction of the first magnetic piece and the second magnetic piece, the magnetic unit is a strong magnetic structure, the attraction force is good, the refrigerator door is prevented from rebounding due to insufficient inertia or excessive force, the refrigerator door cannot be tightly closed, a large amount of cold air is prevented from being lost, the freshness of food in the refrigerator is ensured, and the energy consumption of the refrigerator is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic diagram of the utility model;

[0013] Figure 2 is a sectional structure schematic diagram of the utility model;

[0014] Figure 3 is a partial enlarged structure schematic diagram of the utility model Figure 2 A.

[0015] Fig. 1, cylinder; 2, connecting sleeve; 3, groove; 4, first magnetic piece; 5, piston rod; 6, second magnetic piece; 7, throttle valve structure; 8, front end cover unit; 9, end face hole; 10, reset spring. DETAILED DESCRIPTION

[0016] In the following, a plurality of embodiments of the utility model will be disclosed by means of drawings. For the purpose of clear illustration, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the utility model. That is to say, in some embodiments of the utility model, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be shown in a simple schematic manner in the drawings.

[0017] It should be noted that all directional indications in the embodiments of the utility model, such as up, down, left, right, front, back, etc., are used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0018] Furthermore, in addition to indicating orientation or positional relationship, the aforementioned terms may also be used to indicate other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in this utility model can be understood according to the specific circumstances.

[0019] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts. The connection methods described herein are existing technologies without any modifications and are common knowledge to those skilled in the art. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model. Example 1

[0021] like Figures 1 to 3 As shown, this utility model provides a damping device with a strong magnetic piston rod, including a cylinder 1 and a damping structure movably disposed within the cylinder 1; specifically, the end of the cylinder 1 is provided with a connecting structure that abuts against and cooperates with the damping structure, and the connecting structure is provided with a magnetic unit for quickly and tightly attracting the damping structure.

[0022] The connection structure includes a connecting sleeve 2 snapped onto the end of the cylinder 1; specifically, the connecting sleeve 2 has a groove 3 for installing a magnetic unit on the side near the damping structure, and the magnetic unit includes a first magnetic element 4 fixedly disposed in the groove 3.

[0023] The damping structure comprises a piston rod 5 movably arranged in the cylinder 1, and the piston rod 5 is provided with a second magnetic element 6 magnetically attracted to the first magnetic element 4 at one end close to the magnetic unit; specifically, the piston rod 5 moves in the cylinder 1, and when the second magnetic element 6 is close to the first magnetic element 4, the second magnetic element 6 drives the piston rod 5 to quickly attract the first magnetic element 4.

[0024] The damping structure further comprises a throttle valve structure 7 for throttling and controlling the moving speed of the piston rod 5; specifically, the throttle valve structure 7 is sleeved on the piston rod 5, and the throttle valve structure 7 is arranged at one end close to the magnetic unit.

[0025] The cylinder 1 is sleeved with a front end cover unit 8 at one end away from the connecting structure, the front end cover unit 8 is provided with an end face hole 9 for passing through the piston rod 5, and the end of the piston rod 5 extends to the outside of the cylinder 1 through the end face hole 9; specifically, a return spring 10 is sleeved on the piston rod 5, one end of the return spring 10 is in abutting connection with the throttle valve structure 7, and the other end of the return spring 10 is in abutting connection with the front end cover unit 8.

[0026] The working principle of the utility model is as follows: the refrigerator door is rotated and drives the piston rod 5 to move synchronously in the cylinder 1 through the connecting rod structure of the refrigerator door, the piston rod 5 drives the throttle valve structure 7 to move synchronously in the cylinder 1, as shown in Figure 2 When it is needed to open the refrigerator door, the piston rod 5 moves away from the connecting structure, and simultaneously drives the throttle valve structure 7 to move away from the connecting structure, and the return spring 10 is compressed;

[0027] Conversely, when it is needed to change the refrigerator door from the open state to the closed state, the refrigerator door is rotated and drives the piston rod 5 to move towards the connecting structure through the connecting rod structure of the refrigerator door, the piston rod 5 synchronously drives the throttle valve structure 7 to move towards the connecting structure, when the refrigerator door is closed to 30° with the refrigerator cabinet, that is, the second magnetic element 6 on the piston rod 5 and the first magnetic element 4 in the groove 3 are at a certain distance, the first magnetic element 4 and the second magnetic element 6 begin to be magnetically attracted, under the action of the magnetic force, the second magnetic element 6 drives the piston rod 5 to quickly move towards the first magnetic element 4, the piston rod 5 synchronously drives the throttle valve structure 7 to move towards the first magnetic element 4, until the second magnetic element 6 is attracted to the first magnetic element 4, the throttle valve structure 7 is in abutting connection with the connecting sleeve 2, the magnetic unit is a strong magnetic structure, and the magnetic force is sufficient to attract the damping structure and the connecting structure firmly, so that the phenomenon that the refrigerator door cannot be tightly closed due to insufficient inertia or excessive force is prevented.

[0028] The utility model discloses the advantage lies in: the refrigerator door is closed to the cabinet and presents a certain angle, through the suction of first magnetic piece 4 and second magnetic piece 6, the piston rod 5 is quickly and closely suctioned to first magnetic piece 4, and the magnetic unit is strong magnetic structure, and the suction force is good, prevents the refrigerator door from the rebound caused by the inertia deficiency or the overlarge force, leads to the refrigerator door to be unable to close tightly, avoids the mass loss of cold air, guarantees the fresh degree of food in the refrigerator, reduces the energy consumption of refrigerator. Example 2

[0029] Different from example 1, in the embodiment, the piston rod 5 is made of magnetic material, and the piston rod 5 end and first magnetic piece 4 cooperate magnetic suction, that is, the piston rod 5 generates magnetic force suction through the magnetic material of itself and first magnetic piece 4. Other structures are same as example 1.

[0030] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of different embodiments or examples without contradiction.

[0031] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and drawings. The specific connection mode of each part adopts the conventional means of mature bolt, rivet, welding, sticking and the like in the prior art, which will not be described in detail here.

[0032] The above content is only the preferred embodiment of the utility model, for the ordinary skilled in the art, according to the idea of the utility model, various changes and changes can be made in the specific implementation mode and application range, and the content of the specification should not be understood as the limitation of the utility model, any modification, equivalent replacement, improvement, etc. made in the spirit and principle of the utility model should be included in the scope of claims of the utility model.

Claims

1. A damping device with a strong magnetic piston rod, comprising a cylinder and a damping structure movably disposed within the cylinder, characterized in that: The cylinder end is provided with a connecting structure that abuts against the damping structure. The connecting structure is provided with a magnetic unit for quickly and tightly attracting the damping structure. The connecting structure includes a connecting sleeve snapped onto the cylinder end. The connecting sleeve is provided with a groove for installing the magnetic unit on the side near the damping structure. The magnetic unit includes a first magnetic element fixedly disposed in the groove.

2. The damping device with a strong magnetic piston rod according to claim 1, characterized in that: The damping structure includes a piston rod movably disposed within a cylinder. One end of the piston rod near the magnetic unit is provided with a second magnetic element that magnetically attracts the first magnetic element. As the piston rod moves within the cylinder, when the second magnetic element approaches the first magnetic element, the second magnetic element drives the piston rod to quickly engage with the first magnetic element.

3. The damping device with a strong magnetic piston rod according to claim 2, characterized in that: The damping structure also includes a throttle valve structure for throttling and controlling the moving speed of the piston rod. The throttle valve structure is sleeved on the piston rod and is arranged at one end close to the magnetic unit.

4. A damping device with a strong magnetic piston rod according to claim 3, characterized in that: The cylinder barrel is fitted with a front end cover unit at the end away from the connecting structure. The front end cover unit has an end hole for the piston rod to pass through, and the end of the piston rod extends to the outside of the cylinder barrel through the end hole. A return spring is fitted on the piston rod. One end of the return spring is in contact with the throttle valve structure, and the other end of the return spring is in contact with the front end cover unit.

5. A damping device with a strong magnetic piston rod according to claim 2, characterized in that: The piston rod is made of magnetic material, and the end of the piston rod and the first magnetic component are magnetically attracted to each other.

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