Top-open type box cover hinge capable of adjusting elastic force of spring

Abstract

The utility model discloses a top-open type box cover hinge capable of adjusting elastic force of a spring, which relates to the technical field of refrigerators and comprises a hinge head and a hinge seat. A hinge shaft and a movable shaft are hinged to the hinge head, the two ends of the hinge shaft are hinged to the hinge base, and an arc-shaped channel for the movable shaft to swing is formed in the hinge base. An adjusting block capable of moving up and down is installed on the hinge seat, a supporting plate with the upper end movably connected to the movable shaft is arranged on the hinge seat, the lower end of the supporting plate is inserted into the adjusting block, an adjusting piece capable of driving the adjusting block to move upwards is arranged on the hinge seat, and a spring upper pad located above the adjusting block is arranged on the supporting plate. The supporting plate is sleeved with a hinge spring located between the adjusting block and the spring upper pad. When the box cover is heavy, on the premise that the hinge is not replaced, the adjusting piece drives the adjusting block to move, and then the elastic force of the spring can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of refrigerator, especially a top opening type box cover hinge with adjustable spring elasticity. BACKGROUND

[0002] As a top opening type product, the elasticity of the hinge directly determines the experience of opening the box cover, and the refrigerators in the industry are various, and the sizes of the box covers are also various, but the hinges are single, and different springs need to be matched on the hinge to match the box covers with different weights, so that too many materials will cause installation errors during production. Therefore, in order to realize the single material of the existing refrigerator, the spring elasticity of the hinge is often in several intervals to match the box covers with different sizes and weights, but the elasticity of the hinge spring often does not match the weight of the box cover, and the elasticity is too large or too small when the box cover is opened. SUMMARY

[0003] The utility model aims at providing a top opening type box cover hinge with adjustable spring elasticity, which solves the technical problem that the elasticity of the hinge spring does not match the weight of the box cover in the prior art, and the elasticity is too large or too small when the box cover is opened.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0005] A top opening type box cover hinge with adjustable spring elasticity, comprising a hinge head and a hinge seat, a hinge shaft and a movable shaft are hingedly connected to the hinge head, both ends of the hinge shaft are hingedly connected to the hinge seat, and an arc-shaped channel for the movable shaft to swing is formed in the hinge seat; a adjusting block capable of moving up and down is installed on the hinge seat, a support plate movably connected to the movable shaft at the upper end is arranged on the hinge seat, the lower end of the support plate is inserted into the adjusting block, an adjusting piece capable of driving the adjusting block to move upward is arranged on the hinge seat, a spring upper pad located above the adjusting block is arranged on the support plate, and a hinge spring located between the adjusting block and the spring upper pad is sleeved on the support plate.

[0006] With the above structure, when the box cover is heavy, the adjusting piece drives the adjusting block to move without replacing the hinge, so that the elasticity of the spring can be adjusted, and the elasticity of the hinge spring matches the weight of the box cover.

[0007] Preferably, a support seat is installed at the lower part of the hinge seat, a sliding channel is arranged on the support seat, and the lower end of the adjusting block is arranged in the upper part of the sliding channel. The adjusting block moves up and down along the sliding channel under the action of the adjusting piece, the elasticity of the hinge is adjusted, and the hinge can match the box covers with different weights.

[0008] Preferably, the adjusting member is an adjusting nut screwed in the lower part of the sliding channel. The adjusting member is arranged as the adjusting nut, so that the height of the adjusting block is adjusted by screwing in and out of the nut, thereby adjusting the elasticity of the hinge, reducing the difficulty of adjusting the elasticity of the hinge.

[0009] Preferably, a cross-shaped hole is formed in the adjusting block for inserting the support plate, the width of the support plate is less than the length of the cross-shaped hole, and both ends of the adjusting block are provided with mounting protrusions located on both sides of the cross-shaped hole. The width of the support plate is less than the length of the cross-shaped hole, so that the support plate will not be interfered by the cross-shaped hole when the movable shaft swings, and the cross-shaped hole provides a certain swing space for the lower part of the support plate. The setting of the mounting protrusions can make the lower end of the hinge spring be sleeved on the mounting protrusions, facilitating the installation of the hinge spring.

[0010] Preferably, the lower part of the support plate has a width less than the upper part of the support plate, and the spring upper pad is provided with a mounting hole, the length of the mounting hole is greater than the width of the lower part of the support plate and less than the width of the upper part of the support plate. The setting of the mounting hole makes the spring upper pad be installed on the support plate along the lower part of the support plate. Since the length of the mounting hole is less than the width of the upper part of the support plate, the spring upper pad is pushed upward by the hinge spring to the upper part of the support plate, achieving the installation of the spring upper pad and the limiting of the upper end of the spring.

[0011] Preferably, the lower end of the spring upper pad is downwardly protruding, the lower end of the spring upper pad extends into the upper end of the hinge spring, and the mounting protrusion extends into the lower end of the hinge spring. The downward protrusion of the lower end of the spring upper pad makes the upper end of the hinge spring be sleeved on the lower end of the spring upper pad, facilitating the installation of the hinge spring.

[0012] Preferably, the top end of the support plate is provided with an arc-shaped groove, and the arc-shaped groove is clamped on and movably connected with the side wall of the movable shaft. The setting of the arc-shaped groove makes the arc-shaped groove of the support plate always press against the movable shaft under the action of the hinge spring, and the support plate rotates with the movable shaft when the movable shaft rotates along the arc-shaped channel, thereby assisting the opening of the box cover and making the opening of the box cover more labor-saving.

[0013] Preferably, a support pad is arranged between the arc-shaped groove and the side wall of the movable shaft. The setting of the support pad can reduce the wear between the arc-shaped groove and the movable shaft, thereby prolonging the service life of the hinge.

[0014] Preferably, a circular blind hole is formed in the adjusting nut for inserting the lower end of the support plate. The setting of the circular blind hole can provide a space for inserting the lower end of the support plate.

[0015] Preferably, the middle part of the adjusting block is provided with an outer edge boss. The setting of the outer edge boss can limit the limit displacement of the adjusting block downwardly, and the lower end of the hinge spring abuts against the upper end surface of the outer edge boss, and the outer edge boss limits the position of the hinge spring.

[0016] The beneficial effects of the top-opening box cover hinge are as follows:

[0017] When the box cover is opened, the hinge head rotates, the movable shaft rotates around the hinge shaft along the arc-shaped channel, the elastic force of the hinge spring is released, thereby assisting the opening of the box cover and reducing the required force when opening. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a perspective structural schematic view of the top-opening box cover hinge (box cover closed state) of the utility model;

[0019] Fig. 2 is a sectional structural schematic view of the top-opening box cover hinge (box cover closed state) of the utility model;

[0020] Fig. 3 is a perspective structural schematic view of the top-opening box cover hinge (box cover opened state) of the utility model;

[0021] Fig. 4 is a structural schematic view of the adjusting block.

[0022] In the figure, the hinge head 1, the hinge seat 2, the arc-shaped channel 20, the hinge shaft 3, the movable shaft 4, the adjusting block 5, the cross-shaped hole 50, the mounting protrusion 51, the outer edge boss 52, the support plate 6, the hinge spring 60, the arc-shaped recess 61, the support pad 62, the spring upper pad 7, the mounting hole 70, the adjusting nut 8, the circular blind hole 80, the support seat 9, and the sliding channel 90. DETAILED DESCRIPTION

[0023] The utility model is further described below in combination with the drawings.

[0024] The directions involved in the specification are based on the normal working direction of the top-opening box cover hinge with adjustable spring elastic force of the utility model, and are not limited to the storage and transportation directions, only represent relative positional relationship, and do not represent absolute positional relationship.

[0025] For example, Figs. 1 to 4As shown, a top-opening box cover hinge with adjustable spring force includes a hinge head 1 and a hinge base 2; the hinge head 1 is hingedly connected with a hinge shaft 3 and a movable shaft 4, and the two ends of the hinge shaft 3 are hingedly connected to the hinge base 2. The hinge base 2 is provided with an arc-shaped channel 20 for the swinging of the movable shaft 4; the hinge base 2 is provided with an adjusting block 5 capable of moving up and down, and the hinge base 2 is provided with a support plate 6 movably connected to the upper end of the movable shaft 4, the lower end of the support plate 6 is inserted into the adjusting block 5, the hinge base 2 is provided with an adjusting member capable of driving the adjusting block 5 to move upwards, the support plate 6 is provided with a spring upper pad 7 located above the adjusting block 5, and the support plate 6 is provided with a hinge spring 60 located between the adjusting block 5 and the spring upper pad 7. The hinge spring 60 is a compression spring.

[0026] Wherein, the hinge head 1 is arranged on the box cover, and the hinge base 2 is arranged on the box body. The hinge connects the box cover and the box body in a conventional structure, which will not be described here.

[0027] When the box cover is opened, the hinge head 1 rotates, the movable shaft 4 rotates along the arc-shaped channel 20 about the hinge shaft, and the elastic force of the hinge spring 60 is released, thereby assisting the opening of the box cover and reducing the required force when opening. When the box cover is relatively heavy, the adjusting block 5 can be adjusted to move upwards by the adjusting member without replacing the hinge. The upward movement of the adjusting member lifts the adjusting block 5, thereby further compressing the hinge spring 60. The spring is further compressed, and more elastic potential energy is stored in the spring, thereby saving more energy when opening the box cover. The hinge can match more weight of the box cover. The adjusting member moves the adjusting block, which can adjust the spring force of the hinge spring, so that the spring force of the hinge spring matches the weight of the box cover.

[0028] Wherein, the lower part of the hinge base 2 is provided with a support base 9, the support base 9 is provided with a sliding channel 90, and the lower end of the adjusting block 5 is arranged in the upper part of the sliding channel 90. The adjusting block 5 moves up and down along the sliding channel 90 under the action of the adjusting member, thereby adjusting the hinge force and matching the box cover of different weights.

[0029] As a preferred case of the embodiment, the adjusting member is an adjusting nut 8 screwed into the lower part of the sliding channel 90. The adjusting member is arranged as the adjusting nut 8, so that the height of the adjusting block 5 is adjusted by screwing in and out of the nut, thereby adjusting the spring force of the hinge and reducing the difficulty of adjusting the spring force of the hinge.

[0030] The adjusting block 5 is provided with a cross-shaped hole 50 for inserting the support plate 6, the width of the support plate 6 is smaller than the length of the cross-shaped hole 50, and the adjusting block 5 is provided with mounting protrusions 51 on both sides of the cross-shaped hole 50. The width of the support plate 6 is smaller than the length of the cross-shaped hole 50, so that the support plate 6 will not be interfered by the cross-shaped hole 50 when the support plate 6 swings with the movable shaft 4, and the cross-shaped hole 50 provides a certain swing space for the lower part of the support plate 6. The mounting protrusions 51 can make the lower end of the hinge spring 60 be sleeved on the mounting protrusions 51, thereby facilitating the installation of the hinge spring 60.

[0031] Further, the lower part of the support plate 6 is smaller than the upper part of the support plate 6, the spring upper pad 7 is provided with a mounting hole 70, the length of the mounting hole 70 is greater than the lower part of the support plate 6 and smaller than the upper part of the support plate 6. The upper part and the lower part of the support plate 6 form a limiting protrusion for limiting the upward movement of the spring upper pad 7. The mounting hole 70 is arranged on the support plate 6 along the lower part of the support plate 6, and the spring upper pad 7 is upwardly pressed to the upper part of the support plate 6 by the hinge spring 60, thereby achieving the installation of the spring upper pad 7 and the limiting of the upper end of the spring.

[0032] As a preferred case of the embodiment, the lower end of the spring upper pad 7 protrudes downward, the lower end of the spring upper pad 7 extends into the upper end of the hinge spring 60, and the mounting protrusions 51 extend into the lower end of the hinge spring 60. The lower end of the spring upper pad 7 protrudes downward, so that the upper end of the hinge spring 60 can be sleeved on the lower end of the spring upper pad 7, thereby facilitating the installation of the hinge spring 60.

[0033] As a preferred case of the embodiment, the top end of the support plate 6 is provided with an arc-shaped groove 61, the arc-shaped groove 61 is clamped on the side wall of the movable shaft 4 and is movably connected with the side wall of the movable shaft 4. The arrangement of the arc-shaped groove 61 makes the arc-shaped groove 61 of the support plate 6 always press against the movable shaft 4 under the action of the hinge spring 60, and the support plate 6 rotates with the movable shaft 4 when the movable shaft 4 rotates along the arc-shaped channel 20, thereby assisting the opening of the box cover and making the opening of the box cover more labor-saving.

[0034] Further, a support pad 62 is arranged between the arc-shaped groove 61 and the side wall of the movable shaft 4. Preferably, the support pad 62 is arranged in an arc shape. The arrangement of the support pad 62 can reduce the wear between the arc-shaped groove 61 and the movable shaft 4, thereby prolonging the service life of the hinge.

[0035] Further, the adjusting nut 8 is provided with a circular blind hole 80 for inserting the support plate 6. The arrangement of the circular blind hole 80 can provide a space for inserting the lower end of the support plate 6.

[0036] As a preferred case of the embodiment, the middle part of the adjusting block 5 is provided with an outer edge boss 52. The outer edge boss 52 can limit the limit displacement of the adjusting block 5 downward, and the lower end of the hinge spring 60 abuts against the upper end surface of the outer edge boss 52, and the outer edge boss 52 limits the position of the hinge spring 60.

[0037] The utility model discloses a regulating nut changes the length of spring, according to spring elastic force formula F=KX, changes the length of X, can carry out certain adjustment to the spring elasticity, makes it in certain range adaptation the weight of box cover, makes the process experience of opening greatly promote.

[0038] Of course, the above description is not a limitation on the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or replacements made by the skilled in the art within the essential scope of the utility model should also be within the protection scope of the utility model.

Claims

1. An adjustable spring rate top pop box lid hinge characterized by, The hinge head is hingedly connected with a hinge shaft and a movable shaft, the two ends of the hinge shaft are hingedly connected on the hinge seat, and an arc-shaped channel for swinging of the movable shaft is formed on the hinge seat; an adjusting block capable of moving up and down is installed on the hinge seat, a support plate movably connected at the upper end of the movable shaft is arranged on the hinge seat, the lower end of the support plate is inserted into the adjusting block, an adjusting member capable of driving the adjusting block to move upward is arranged on the hinge seat, a spring upper pad above the adjusting block is arranged on the support plate, and a hinge spring between the adjusting block and the spring upper pad is sleeved on the support plate.

2. An adjustable spring force top opening box lid hinge according to claim 1, wherein The lower part of the hinge seat is provided with a support seat, the support seat is provided with a sliding channel, and the lower end of the adjusting block is arranged in the upper part of the sliding channel.

3. An adjustable spring force top opening box lid hinge according to claim 2, wherein The adjusting member is an adjusting nut screwed in the lower part of the sliding channel.

4. An adjustable spring force top opening box lid hinge according to claim 3, wherein A cross-shaped hole for insertion of the support plate is formed on the adjusting block, the width of the support plate is smaller than the length of the cross-shaped hole, and the two ends of the adjusting block are provided with mounting protrusions on the two sides of the cross-shaped hole.

5. An adjustable spring force top opening box lid hinge as defined in claim 1, wherein, The lower part of the support plate is smaller in width than the upper part of the support plate, a mounting hole is formed on the spring upper pad, the length of the mounting hole is greater than the width of the lower part of the support plate and smaller than the width of the upper part of the support plate.

6. An adjustable spring force top opening box lid hinge according to claim 5, wherein The lower end of the spring upper pad is downwardly protruded, the lower end of the spring upper pad is inserted into the upper end of the hinge spring, and the mounting protrusions are inserted into the lower end of the hinge spring.

7. An adjustable spring force top opening box lid hinge as defined in claim 1, wherein, An arc-shaped groove is arranged at the top end of the support plate, the arc-shaped groove is clamped on the side wall of the movable shaft and movably connected with the side wall of the movable shaft.

8. An adjustable spring force top opening box lid hinge according to claim 7, wherein A support pad is arranged between the arc-shaped groove and the side wall of the movable shaft.

9. An adjustable spring force top opening box lid hinge as defined in claim 3, wherein, A circular blind hole for insertion of the support plate is formed on the adjusting nut.

10. An adjustable spring force top opening box lid hinge as defined in claim 1, wherein, An outer edge boss is arranged at the middle part of the adjusting block.

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