Laterally-mounted thin upturning supporting device

Abstract

The utility model belongs to the technical field of cabinet door assembling accessories, and discloses a laterally-installed thin upturning supporting device which comprises a shell, a rear connecting rod and a front connecting rod, an adjusting screw rod is installed on the shell and connected with an adjusting block in a screwed mode, and a first spring plate is hinged to the connecting position of the rear connecting rod and the front connecting rod. A plurality of first spring hanging holes are formed in the free side plate edge of the first spring plate, the adjusting block is provided with a switching part, the switching part is provided with a notch groove, the second spring plate is arranged in the notch groove, the distance between the second spring plate and the shell tends to be the same as the distance between the first spring plate and the shell, and a plurality of second spring hanging holes are formed in the free side plate edge of the second spring plate; the plurality of tension springs with small outer diameters are hung on the spring hanging holes of the first spring plate and the second spring plate, so that a tension spring with a large outer diameter can be replaced by the plurality of tension springs with small outer diameters, the thickness is reduced under the condition of ensuring the supporting force of the tension springs, and the utilization rate of the internal space of the cabinet can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cabinet door assembly fittings, and particularly relates to an upward-folding support device for a cabinet door. Background Art

[0002] The upward-folding support device is installed on the left and right sides of a cabinet and is used to support the door panel when the cabinet door is opened upward so that the door panel will not close downward by itself under the action of gravity. The supporting force for the upward-opening of the upward-folding door panel is provided by the pulling force of a tension spring inside the support device. To enable the door panel to hover at any angle between 45° and 100° when opened upward, the pulling force of the tension spring should be equivalent to the gravity of the cabinet door. At present, for the existing upward-folding support device, as disclosed in the Chinese utility model (publication number CN219711288 U), a tension spring with a relatively large outer diameter is used to provide the supporting pulling force. One end of the tension spring is hinged at the connection of the front link and the rear link, and the other end is connected to the slider of the force adjustment mechanism. The setting of the tension spring with a large outer diameter results in a relatively thick support device, which occupies a large space in the cabinet, reduces the utilization rate of the cabinet space, and makes it inconvenient to take items. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model aims to provide an upward-folding support device that can reduce the thickness, improve the utilization rate of the internal space of the cabinet and facilitate taking items while ensuring the supporting force of the tension spring.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A laterally installed thin-type upward-folding support device includes a housing, a rear link with its tail end hinged to the housing, and a front link with its tail end hinged to the front end of the rear link. The housing is provided with an adjusting screw, and the adjusting screw is screwed with an adjusting block. The device further includes: a first spring plate, hinged at the connection of the rear link and the front link, and provided with a plurality of first spring hanging holes for hanging one end of a tension spring at the free side edge thereof;

[0006] A second spring plate, provided with a plurality of second spring hanging holes for hanging the other end of the tension spring at the free side edge thereof;

[0007] The adjusting block has a transfer portion connected to the second spring plate. The transfer portion is provided with a notch groove for loading the second spring plate, so that the distance between the second spring plate and the housing tends to be the same as the distance between the first spring plate and the housing.

[0008] The utility model has the following beneficial effects:

[0009] A plurality of small - outer - diameter tension springs are hung on the spring hanging holes of the first spring plate and the second spring plate, which can achieve the replacement of a large - outer - diameter tension spring with multiple small - outer - diameter tension springs. Under the condition of ensuring the supporting force of the tension spring, by reducing the outer diameter of the tension spring, the thickness of the supporting device is reduced, the utilization rate of the internal space of the cabinet is improved, and the purpose of facilitating the taking of objects is achieved. Brief Description of the Drawings

[0010] Figure 1 Fig. is a schematic diagram of the upward - opening state of the cabinet door when the upward - turning support device of the present utility model is installed and used;

[0011] Figure 2 Fig. is a schematic diagram of the closed state of the cabinet door when the upward - turning support device of the present utility model is installed and used;

[0012] Figure 3 Fig. is a structural diagram of the support arm of the upward - turning support device of the present utility model;

[0013] Figure 4 Fig. is a structural diagram of the installation and setting of the second spring plate of the upward - turning support device of the present utility model;

[0014] Figure 5 is Figure 4 a three - dimensional view of the set structure of the second spring plate shown.

[0015] In the figure: upward - turning door 100; base 1; connecting arm 2; rear connecting rod 3; front connecting rod 4; housing 5; front support arm 6; main support arm 7; front swing arm 8; rear swing arm 9; first spring plate 10; second spring plate 11; adjusting block 12; adjusting screw 13; tension spring 14; transfer hole 111; first spring hanging hole 112; second spring hanging hole 113; V - shaped side - plate edge 114; block tail wall 121; U - shaped transfer part 122; notch groove 123; nut 124; transfer foot 125. Detailed Embodiment

[0016] The following combines the drawings and specific embodiments to further describe the present utility model, so as to more clearly understand the technical idea required to be protected by the present utility model.

[0017] The upward - turning support device is as Figures 1 to 5As shown, the upward flipping support device is installed on both sides of the cabinet to connect the upward flipping door 100. The upward flipping support device includes a base 1, a connecting arm 2, a rear connecting rod 3, a front connecting rod 4 and a shell 5. The upward flipping door 100 is fixed to the base 1, the base 1 is connected to the connecting arm 2, the rear end of the rear connecting rod 3 is hinged to the shell 5, the front end of the rear connecting rod 3 is hinged to the rear end of the front connecting rod 4, and a support arm structure consisting of a front supporting arm 6, a main supporting arm 7, a front swing arm 8 and a rear swing arm 9 is connected between the front connecting rod 4 and the connecting arm 2, wherein: the front end of the front supporting arm 6 and the main supporting arm 7 are hinged to the connecting arm 2, the rear end of the front supporting arm 6 is hinged to the lower end of the front swing arm 8, the arm body of the main supporting arm 7 is hinged to the middle part of the front swing arm 8, the rear end of the main supporting arm 7 and the front end of the front connecting rod 4 are hinged to the lower end of the rear swing arm 9, the upper ends of the front swing arm 8 and the rear swing arm 9 are hinged to the shell 5, and the shell 5 is fastened to the inner wall of the side panel of the cabinet.

[0018] The first spring plate 10 of the plate structure is hinged at the connection between the rear link 3 and the front link 4. Three first spring hanging holes 112 are set on the free side plate edge of the first spring plate 10, and one end of three small outer diameter tension springs 14 are respectively hung on the three first spring hanging holes 112. The adjusting screw 13 is pivotally installed at the lower position of the front side of the housing 5. The free end of the adjusting screw 13 faces downward relative to its screw head and extends to the rear side of the housing 5. The adjusting block 12 is screwed on the adjusting screw 13. Turning the adjusting screw 13 can drive the adjusting block 12 to move along the adjusting screw 13. From a top-down perspective, it is more convenient and labor-saving to make the screwdriver act obliquely downward on the screw head of the adjusting screw 13 to perform the adjustment operation than to tilt the screwdriver upward to adjust.

[0019] The adjustment block 12 adopts a bent and deformed U-shaped block structure. The U-shaped block structure has two block tail walls 121 for the adjustment screw 13 to pass through and a U-shaped transition part 122 connecting the two block tail walls 121. Due to the wall thickness of the block tail wall 121, it is impossible to directly set a screw hole with a suitable stroke on the block tail wall 121. Rotating the adjustment screw 13 will cause the adjustment block 12 to be unable to move or the screw connection adjustment to be poor due to the short matching stroke. Therefore, only a light hole is set on the two block tail walls 121 to allow the adjustment screw 13 to pass through, and a nut 124 is embedded between the two block tail walls 121. When the adjustment screw 13 rotates, the movement of the nut 124 on the adjustment screw 13 drives the adjustment block 12 to move, so that the screw connection between the adjustment block 12 and the adjustment screw 13 is smooth and stable, and it is not necessary to increase the wall thickness of the U-shaped block structure and save the tapping processing steps for the U-shaped block structure.

[0020] The U-shaped adapter part 122 is bent and offset relative to the tail wall 121 of the block towards the free end direction of the adjusting screw 13. The U-shaped adapter part 122 is provided with a notch groove 123 and an adapter foot 125 is arranged on one side of the notch groove 123. The second spring plate 11 of the plate structure is installed in the notch groove 123. Since the distance between the first spring plate 10 and the housing 5 is less than the height of the adjusting block 12, the setting of the notch groove 123 makes the distance between the second spring plate 11 and the housing 5 tend to be the same as the distance between the first spring plate 10 and the housing 5 after the second spring plate 11 is connected to the U-shaped adapter part 122. Three second spring hanging holes 113 are arranged on the free side edge of the second spring plate 11, and the other ends of the three small outer diameter tension springs 14 are respectively hung on the three second spring hanging holes 113, realizing the replacement of one large outer diameter tension spring with three small outer diameter tension springs. While ensuring the supporting force of the tension spring, the thickness of the upward turning support device is reduced, the utilization rate of the internal space of the cabinet can be improved, and it is convenient to take objects; in addition, the distance between the second spring plate 11 and the housing 5 tends to be the same as the distance between the first spring plate 10 and the housing 5, which can also make the plane where the central axes of the three small outer diameter tension springs 14 are located parallel to the housing 5, that is, the side plate of the cabinet, enhancing the utilization efficiency of the spring tension and improving the supporting effect of the spring tension on the upward turning door 100.

[0021] The second spring plate 11 is specifically connected to the adapter foot 125 through the adapter hole 111. When the adjusting block 12 pulls the second spring plate 11, the three small outer diameter tension springs 14 transmit force to pull the first spring plate 10 to swing. The second spring plate 11 swings on the adapter foot 125 and automatically adjusts the angle, making the stretching of the three small outer diameter tension springs 14 uniform, ensuring the stretching consistency of each tension spring, and preventing different degrees of tensile stress deformation of each tension spring from affecting the use effect. A V shape is formed on one side of the second spring plate 11 close to the two tail walls 121 of the block. The setting of the V-shaped side edge 114 can reduce the swing restriction of the tail wall 121 on the second spring plate 11 and improve the swing adjustment range and flexibility of the second spring plate 11.

[0022] For those skilled in the art, various corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.

Claims

1. A laterally mounted thin flip-up support device, comprising a housing (5), a rear connecting rod (3) whose rear end is hinged to the housing (5), and a front connecting rod (4) whose rear end is hinged to the front end of the rear connecting rod (3), wherein the housing (5) is provided with an adjusting screw (13), and the adjusting screw (13) is screwed to an adjusting block (12), characterized in that: Also includes: A first spring plate (10) is hinged to the connection between the rear connecting rod (3) and the front connecting rod (4), and is provided with a plurality of first spring hanging holes (112) connected to one end of a tension spring (14) on its free side plate edge; The second spring plate (11) has a plurality of second spring hanging holes (113) on its free side plate edge to be hung with the other end of the tension spring (14); The adjustment block (12) has a transition portion connected to the second spring plate (11), the transition portion being provided with a notch groove (123) for receiving the second spring plate (11), so that the distance between the second spring plate (11) and the housing (5) is close to the distance between the first spring plate (10) and the housing (5).

2. The laterally mounted thin flip-up support device according to claim 1, characterized in that: The notch groove (123) is provided with a transfer pin (125), and the second spring plate (11) is provided with a transfer hole (111) that is transferred to the transfer pin (125) and enables the second spring plate (11) to swing on the transfer pin (125) to adjust the angle when the adjustment block (12) pulls the second spring plate (11).

3. The laterally mounted thin flip-up support device according to claim 2, characterized in that: The transition portion is arranged in a U shape, and the transition foot (125) is arranged on one side of the notch groove (123).

4. The laterally mounted thin flip-up support device according to claim 3, characterized in that: The adapter portion connects two block tail walls (121) through which the adjusting screw rod (13) passes, a nut (124) is embedded between the two block tail walls (121), and the adjusting screw rod (13) and the nut (124) are threadedly engaged.

5. The laterally mounted thin flip-up support device according to claim 4, characterized in that: A V-shaped side plate edge (114) is provided on one side of the second spring plate (11) close to the two block tail walls (121).

6. The laterally mounted thin flip-up support device according to claim 1, characterized in that: The adjusting screw (13) is mounted on the lower front part of the housing (5), and the free end of the adjusting screw (13) faces downward relative to its screw head and extends toward the rear side of the housing (5).

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