Damper with anti-pinch safety structure
By designing a damper with an anti-pinch safety structure, and using a damping plate and torsion spring to limit the rotation speed of the rotating shaft, the problem of the refrigerator door pinching the hand due to excessive closing speed is solved, thus improving the stability and safety of the refrigerator door.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-24
AI Technical Summary
Existing refrigerator doors can easily trap hands when closed too quickly, and magnetic components cannot effectively prevent this, leading to injury.
Design a damper with an anti-pinch safety structure. By using a damping plate and a torsion spring in conjunction with a limiting plate, the rotation speed of the rotating shaft is limited, and additional resistance is added when the closing speed is fast, to prevent the refrigerator door from pinching the hand.
It effectively prevents hands from being pinched by the refrigerator door due to closing too quickly, improving the stability and safety of the refrigerator door and preventing hand injuries.
Smart Images
Figure CN224032429U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to damper technical field, especially with anti -pinch hand safety structure's damper. BACKGROUND
[0002] The refrigerator is a kind of refrigeration equipment to keep constant low temperature, it is also a kind of civil product to keep constant low temperature state of food or other articles.
[0003] With the increasing of national living standard, refrigerator also walks into thousands of families, due to the refrigerator needing frequent door body opening and closing, it is inevitable to be pinched to hand by refrigerator door in case of inattentive, cause injury, the existing refrigerator door body is equipped with magnetic element, to reduce the noise and hand injury caused by the quick closing of refrigerator door, but the magnetic element side cannot effectively prevent pinching hand when speed is faster, in view of this, we provide a kind of damper with anti-pinch hand safety structure. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a kind of damper with anti-pinch hand safety structure to solve the problems raised in the above background.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of damper with anti-pinch hand safety structure, including mounting plate, the mounting plate is provided with shell, the inside of the shell is hollow, the bottom wall of the cavity is rotatably connected with rotating shaft, the upper end of the rotating shaft is rotatably penetrated out of the upper side surface of shell, the outer surface of the rotating shaft is rotatably sleeved with sleeve, the outer surface of the sleeve is fixedly connected with damping plate, the upper of the damping plate is provided with through-hole, the outer surface of the rotating shaft is fixedly connected with mounting ring, the lower side surface of the mounting ring is fixedly connected with torsion spring, the lower end of the torsion spring is fixedly connected with the bottom wall of sleeve, the inside of the cavity is provided with auxiliary assembly.
[0006] Preferably, the auxiliary assembly includes displacement disc, the displacement disc is movably sleeved on the outer surface of rotating shaft, and the inner wall of the displacement disc is provided with sealing ring.
[0007] Preferably, the upper side surface of the displacement disc is fixedly connected with spring, and the upper end of the spring is fixedly connected with the top wall of cavity.
[0008] Preferably, the lower side surface of the displacement disc is in contact with the upper side surface of damping plate, and the inside of the cavity below the displacement disc is filled with viscous liquid.
[0009] Preferably, the upper end of the rotating shaft is fixedly connected with meshing gear, and the outer surface of the shell is fixedly connected with mounting lug.
[0010] Preferably, the upper side surface of the mounting ear is provided with a first threaded hole extending out of the lower side surface thereof, and the upper side surface of the mounting plate is provided with a second threaded hole extending out of the lower side surface thereof.
[0011] Preferably, the first threaded hole and the second threaded hole are internally threadedly connected with a fixing bolt, the outer surface of the shell is fixedly connected with a limiting block, and the upper side surface of the mounting plate is fixedly connected with a U-shaped limiting plate.
[0012] Preferably, the limiting block is in contact with the left and right vertical plates of the U-shaped limiting plate.
[0013] Compared with the prior art, the damping device with the anti-pinch safety structure has the following beneficial effects:
[0014] 1. The damping device with the anti-pinch safety structure utilizes the damping plate and the through hole to limit the rotation speed of the rotating shaft, thereby avoiding the hand from being pinched due to the too fast closing speed of the refrigerator door body, and the torsion spring is arranged to be greatly deformed when the closing speed is relatively fast, so as to increase the additional resistance.
[0015] 2. The damping device with the anti-pinch safety structure utilizes the U-shaped limiting plate and the limiting block to provide the stability of the shell, thereby avoiding the stress of the fixing bolt from being too large and improving the stability after installation. BRIEF DESCRIPTION OF DRAWINGS
[0016] The utility model will be further explained in connection with the drawings and embodiments:
[0017] Figure 1 It is a structural schematic view of the damping device with the anti-pinch safety structure of the utility model;
[0018] Figure 2 It is a second threaded hole schematic view of the utility model;
[0019] Figure 3 It is a shell cross-sectional view schematic view of the utility model;
[0020] Figure 4 It is a plane schematic view of the utility model;
[0021] Figure 5 It is a cavity schematic view of the utility model.
[0022] The drawings show that: 1, mounting plate;2, shell;3, cavity;4, rotating shaft;5, sleeve;6, damping plate;7, through hole;8, mounting ring;9, torsion spring;10, displacement disc;11, spring;12, meshing gear;13, mounting ear;14, first threaded hole;15, second threaded hole;16, fixing bolt;17, limiting block;18, U-shaped limiting plate. DETAILED DESCRIPTION
[0023] The detailed embodiments of the utility model will be described in this part, the preferred embodiment of the utility model is shown in the drawings, the role of the drawings is to supplement the description of the written part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0024] In the description of the utility model, it needs to be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc.
[0025] In the description of the utility model, greater than, less than, more than, etc.
[0026] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0027] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a damper with anti-pinch safety structure, including mounting plate 1, mounting plate 1 is provided with shell 2, the inside of shell 2 is opened with cavity 3, the bottom wall of cavity 3 is rotatably connected with rotating shaft 4, the upper end of rotating shaft 4 is rotatably penetrated out of the upper side surface of shell 2, the outer surface of rotating shaft 4 is rotatably sleeved with sleeve 5, the outer surface of sleeve 5 is fixedly connected with damping plate 6, the upper of damping plate 6 is opened with through hole 7, the outer surface of rotating shaft 4 is fixedly connected with mounting ring 8, the lower side surface of mounting ring 8 is fixedly connected with torsion spring 9, the lower end of torsion spring 9 is fixedly connected with the bottom wall of sleeve 5, the inside of cavity 3 is provided with auxiliary assembly, the rotation speed of rotating shaft 4 is limited by damping plate 6 cooperation through hole 7, to avoid being pinched to hand due to the refrigerator door body closing speed too fast, and it can be set with the torsion spring 9, when closing speed is faster, torsion spring 9 is greatly deformed, so as to increase additional resistance.
[0028] Further, the auxiliary assembly comprises a displacement disc 10 movably sleeved on the outer surface of the rotating shaft 4, the inner wall of the displacement disc 10 is provided with a sealing ring, the upper side surface of the displacement disc 10 is fixedly connected with a spring 11, the upper end of the spring 11 is fixedly connected with the top wall of the cavity 3, the lower side surface of the displacement disc 10 is in contact with the upper side surface of the damping plate 6, the inside of the cavity 3 at the lower side of the displacement disc 10 is filled with viscous liquid, the upper end of the rotating shaft 4 is fixedly connected with an engaging gear 12, the outer surface of the shell 2 is fixedly connected with a mounting lug 13, the upper side surface of the mounting lug 13 is provided with a first threaded hole 14 extending out of the lower side surface thereof, the upper side surface of the mounting plate 1 is provided with a second threaded hole 15 extending out of the lower side surface thereof, the first threaded hole 14 and the second threaded hole 15 are internally threadedly connected with a fixing bolt 16, the outer surface of the shell 2 is fixedly connected with a limiting block 17, the upper side surface of the mounting plate 1 is fixedly connected with a U-shaped limiting plate 18, the limiting block 17 is in contact with the left and right two vertical plates of the U-shaped limiting plate 18, the stability of the shell 2 is provided by the U-shaped limiting plate 18 cooperating with the limiting block 17, so that the stress of the fixing bolt 16 is avoided to be large, and the stability after installation is improved.
[0029] Working principle: first, the shell 2 is placed on the mounting plate 1, and the limiting block 17 is located between the two vertical plates of the U-shaped limiting plate 18, then the shell 2 is fixed on the mounting plate 1 by the fixing bolt 16 cooperating with the mounting lug 13, when the refrigerator door is quickly closed during use, the refrigerator door shaft body will drive the engaging gear 12 to rotate, the engaging gear 12 synchronously drives the rotating shaft 4 to rotate, when the rotating shaft 4 rotates, it will synchronously drive the mounting ring 8 to rotate, when the mounting ring 8 rotates, it will compress the torsion spring 9, until the required force of the compression of the torsion spring 9 is greater than the required force of the rotation of the damping plate 6, at this time, the damping plate 6 will start to rotate in the inside of the cavity 3, because the inside of the cavity 3 is filled with viscous liquid, and there is only one through hole 7 on the damping plate 6 for the viscous liquid to pass through, so the rotating resistance of the damping plate 6 is greatly increased, thereby reducing the rotation speed of the refrigerator door, preventing the refrigerator door from clamping the hand, when the closing speed is fast, causing the pressure in the cavity 3 to be large, the displacement disc 10 is pushed to move upward, the displacement disc 10 moves to compress the spring 11, providing movement space for the thick liquid inside, so as to avoid the damage of the shell 2 caused by excessive pressure.
[0030] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the utility model.
Claims
1. A damper with a safety structure against pinching hands, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with a shell (2), the inside of the shell (2) is provided with a cavity (3), the bottom wall of the cavity (3) is rotatably connected with a rotating shaft (4), the upper end of the rotating shaft (4) rotatably penetrates the upper side surface of the shell (2), the outer surface of the rotating shaft (4) is rotatably sleeved with a sleeve (5), the outer surface of the sleeve (5) is fixedly connected with a damping plate (6), the upper side of the damping plate (6) is provided with a through hole (7), the outer surface of the rotating shaft (4) is fixedly connected with a mounting ring (8), the lower side surface of the mounting ring (8) is fixedly connected with a torsion spring (9), the lower end of the torsion spring (9) is fixedly connected with the bottom wall of the sleeve (5), and the inside of the cavity (3) is provided with an auxiliary assembly.
2. The damper with anti-pinch safety structure according to claim 1, characterized in that: The auxiliary assembly comprises a displacement disc (10), the displacement disc (10) is movably sleeved on the outer surface of the rotating shaft (4), and the inner wall of the displacement disc (10) is provided with a sealing ring.
3. A damper with an anti-pinch safety structure according to claim 2, characterized in that: The upper side surface of the displacement disc (10) is fixedly connected with a spring (11), and the upper end of the spring (11) is fixedly connected with the top wall of the cavity (3).
4. The damper with the anti-pinch safety structure according to claim 3, characterized in that: The lower side surface of the displacement disc (10) is in contact with the upper side surface of the damping plate (6), and the inside of the cavity (3) below the displacement disc (10) is filled with viscous liquid.
5. The dampener with anti-pinch safety according to claim 1, wherein: The upper end of the rotating shaft (4) is fixedly connected with an engaging gear (12), and the outer surface of the shell (2) is fixedly connected with a mounting lug (13).
6. A damper with an anti-pinch safety according to claim 5, wherein: The upper side surface of the mounting lug (13) is provided with a first threaded hole (14) extending out of the lower side surface thereof, and the upper side surface of the mounting plate (1) is provided with a second threaded hole (15) extending out of the lower side surface thereof.
7. A damper with an anti-pinch safety according to claim 6, wherein: The first threaded hole (14) and the second threaded hole (15) are internally and threadedly connected with a fixing bolt (16), the outer surface of the shell (2) is fixedly connected with a limiting block (17), and the upper side surface of the mounting plate (1) is fixedly connected with a U-shaped limiting plate (18).
8. A damper with an anti-pinch safety structure according to claim 7, characterized in that: The limiting block (17) is in contact with the left and right vertical plates of the U-shaped limiting plate (18).