Three-dimensionally adjustable concealed hinge

Abstract

A three-dimensionally adjustable concealed hinge, characterized in that it comprises the following: a pivot arm component comprising a first pivot arm and a second pivot arm articulated to each other, wherein the first pivot arm has a coaxially arranged rotating end, and wherein the second pivot arm has a coaxially arranged rotating end; a first component comprising a first mounting seat and a first right-angled block, wherein both sides inside the mounting seat are each provided with the first right-angled block, wherein each of the first right-angled blocks is connected to a corresponding rotating end of the first pivot arm, wherein one end of the first right-angled block is provided with a sliding post, and wherein the first mounting seat has two sets of sliding holes; a second component comprising a second mounting seat, a second right-angle block and an adjustment bracket, wherein the second mounting seat is provided internally with the adjustment bracket, wherein both sides inside the adjustment bracket are each provided with a second right-angle block, wherein the second right-angle blocks are each connected to a corresponding rotating end of the second swivel arm, wherein the sliding hole of the first mounting seat interacts with the sliding post of the first right-angled block, wherein the sliding hole limits the sliding post and the axial length of the sliding post is greater than the depth of the sliding hole.

Description

TECHNICAL AREA

[0001] The present utility model belongs to the field of hinge technology, specifically it relates to a three-dimensionally adjustable concealed hinge. STATE OF THE ART

[0002] The hinge is a common connecting component in everyday life and is typically used to join the leaves of doors, windows, or cabinets that need to be opened. The hinge is the key component for the relative rotation of the door leaves. With the development of modern industry, hinge designs have become increasingly precise, but some problems persist.

[0003] After installation, the existing hinges must be adjusted three-dimensionally to facilitate rotation; this adjustment method is relatively simple. However, existing three-dimensionally adjustable concealed hinges often lack effective guidance and limiting mechanisms for forward and backward adjustment, or the adjustment length of the guide structure is insufficient. This results in the right-angle block shifting, wobbling, or even jamming easily during adjustment and use. This not only makes it difficult to ensure adjustment accuracy but also easily damages components such as adjustment screws, reducing the hinge's lifespan and increasing maintenance costs. Therefore, the hinge needs to be improved. CONTENTS OF THE PRESENT USE SAMPLE

[0004] The purpose of the present utility model is to provide a three-dimensionally adjustable concealed hinge to solve the problem that the adjustment components of existing three-dimensionally adjustable concealed hinges are easily damaged.

[0005] To achieve the above-mentioned objective, the present utility model uses the following technical solution: A three-dimensionally adjustable concealed hinge, comprising: a pivot arm component comprising a first pivot arm and a second pivot arm articulated to each other, wherein the first pivot arm has a coaxially arranged rotating end, and wherein the second pivot arm has a coaxially arranged rotating end; a first component comprising a first mounting seat and a first right-angled block, wherein both sides inside the mounting seat are each provided with the first right-angled block, wherein each of the first right-angled blocks is connected to a corresponding rotating end of the first pivot arm, wherein one end of the first right-angled block is provided with a sliding post, and wherein the first mounting seat has two sets of sliding holes; a second component comprising a second mounting seat, a second right-angled block and an adjustment bracket, wherein the second mounting seat is provided internally with the adjustment bracket, wherein both sides inside the adjustment bracket are each provided with the second right-angled block, wherein the second right-angled blocks are each connected to a corresponding rotating end of the second swivel arm; wherein the sliding hole of the first mounting seat interacts with the sliding post of the first right-angled block, wherein the sliding hole limits the sliding post, and the axial length of the sliding post is greater than the depth of the sliding hole.

[0006] Optionally, it is provided that on one side of the right-angled block a screw hole is provided for forward and backward adjustment, wherein the first mounting seat is provided with two sets of adjustment holes for forward and backward adjustment which are adapted to the screw holes for forward and backward adjustment, wherein the two sets of adjustment holes for forward and backward adjustment and the corresponding screw holes for forward and backward adjustment are each mounted with screws for forward and backward adjustment, wherein the screws for forward and backward adjustment are guided through the corresponding adjustment holes for forward and backward adjustment and screwed into the screw holes for forward and backward adjustment.

[0007] Optionally, the adjustment bracket is provided on both sides with adjustment holes for left and right adjustment, with the second right-angled blocks each having a screw hole for left and right adjustment that matches the corresponding adjustment hole for left and right adjustment, with the screw holes for left and right adjustment being mounted inside and the corresponding adjustment holes for left and right adjustment being mounted inside with screws for left and right adjustment, with the screws for left and right adjustment being guided through the adjustment holes for left and right adjustment and screwed into the screw holes for left and right adjustment.

[0008] Optionally, the adjustment bracket is provided on both sides with screw holes for upward and downward adjustment, the second mounting seat being provided at one end with two sets of adjustment holes for upward and downward adjustment that align with the screw holes for upward and downward adjustment, the screw holes for upward and downward adjustment being on the inside and the corresponding adjustment holes for upward and downward adjustment being each fitted with screws for upward and downward adjustment, the screws for upward and downward adjustment being guided through the adjustment holes for upward and downward adjustment and screwed into the screw holes for upward and downward adjustment.

[0009] Optionally, the first swivel arm and the second swivel arm are each provided with coaxially arranged sliding ends, with the first right-angled block and the second right-angled block each being provided with limit slides at other ends, the sliding end being arranged in the corresponding slide.

[0010] Optionally, the first swivel arm and the second swivel arm can be arranged alternately.

[0011] Optionally, one end of the first assembly seat is provided with a mark.

[0012] Optionally, the surfaces of the first mounting seat and the second mounting seat are provided with multiple mounting holes.

[0013] Optionally, the surfaces of the first mounting seat and the second mounting seat are also provided with several connecting holes, and the surfaces of the first mounting seat and the second mounting seat are also provided with trim covers, the trim covers being firmly connected via connecting holes.

[0014] The advantageous effects of the three-dimensionally adjustable concealed hinge of the present utility model are: By attaching a sliding post to one end of the first right-angled block, a sliding structure is formed between the sliding post and the sliding hole. During the forward and backward adjustment of the first right-angled section, the sliding post and the sliding hole limit the movement of the first right-angled block, thus making it more stable during the forward and backward adjustment. By setting the axial length of the sliding post greater than the depth of the sliding hole, the contact area and the fitting depth between the sliding post and the sliding hole are significantly increased, thereby considerably improving the stability and accuracy of the guide, effectively preventing wobbling or jamming of the first right-angled block during adjustment, and further increasing the service life of the adjustment component as well as the overall load-bearing capacity of the hinge. BRIEF DESCRIPTION OF THE DRAWING Fig. Figure 1 is a schematic structural perspective front view of the three-dimensionally adjustable concealed hinge of the present utility model. Fig. Figure 2 is a schematic structural front view of the three-dimensionally adjustable concealed hinge of the present utility model. Fig. Figure 3 is a schematic structural perspective view of the three-dimensionally adjustable concealed hinge of the present utility model. Fig. Figure 4 is a schematic structural exploded view of the three-dimensionally adjustable concealed hinge of the present utility model. Fig. Figure 5 is another schematic structural exploded view of the three-dimensionally adjustable concealed hinge of the present utility model.

[0015] As shown in the figures: 11. First mounting seat; 12. Second mounting seat; 2. Mark; 31. First swivel arm; 32. Second swivel arm; 33. Limit slide; 41. Screw hole for forward and backward adjustment; 42. Adjustment hole for forward and backward adjustment; 43. Slide post; 44. Slide hole; 51. First right-angle block; 52. Second right-angle block; 61. Screw hole for up and down adjustment; 62. Adjustment hole for up and down adjustment; 71. Screw hole for left and right adjustment; 72. Adjustment hole for left and right adjustment; 81. Mounting hole; 82. Connecting hole; 83. Cover plate; 9. Adjustment bracket. DETAILED DESCRIPTION

[0016] The following detailed description of the three-dimensionally adjustable concealed hinge of the present utility model is provided together with specific accompanying drawings.

[0017] Fig. 1, Fig. 2, Fig. 4 and Fig. Figure 5 shows the three-dimensionally adjustable concealed hinge of the present utility model, which comprises a pivot arm component, a first component and a second component.

[0018] The swivel arm component comprises a first swivel arm 31 and a second swivel arm 32, which are articulated to each other, wherein the first swivel arm 31 has a coaxially arranged rotating end, and wherein the second swivel arm 32 has a coaxially arranged rotating end.

[0019] The first component comprises a first mounting seat 11 and a first right-angled block 51, wherein both sides inside the mounting seat 11 are each provided with a first right-angled block 51, wherein each of the first right-angled blocks 51 is connected to a corresponding rotating end of the first pivot arm 31, wherein one end of each first right-angled block 51 is provided with a sliding post 43, and wherein two sets of sliding holes 44 are provided on the first mounting seat 11.

[0020] The second component comprises a second mounting seat 12, a second right-angled block 52 and an adjustment bracket 9, wherein the second mounting seat 12 is provided internally with the adjustment bracket 9, wherein both sides inside the adjustment bracket 9 are each provided with the second right-angled block 52, wherein the second right-angled blocks 52 are each connected to a corresponding rotating end of the second swivel arm 32,

[0021] As in the Fig. 3, Fig. 4 and Fig. As shown in Figure 5, one end of the first mounting seat 11 is marked with a label 2 for easier identification. It is understood that either the first mounting seat 11 or the second mounting seat 12 can be marked with a label 2, or that the two mounting seats can be marked with different labels 2 to facilitate quicker differentiation. The first mounting seat 11 with the label 2 is installed in the opening of the door leaf, and the second mounting seat 12 is installed in the opening of the door frame.

[0022] As in Fig. As shown in Figure 3, the sliding hole 44 of the first mounting seat 11 and the sliding post 43 of the first right-angled block 51 interact with each other, with the sliding hole 44 defining the limits of the sliding post 43. It should be noted that during the forward and backward adjustment of the first right-angled block 51, the sliding hole 44 and the first mounting seat 11 simultaneously define the limits of the first right-angled block 51. This makes the first right-angled block 51 more stable during forward and backward adjustment and prevents displacement of the first right-angled block during the adjustment process.

[0023] As in Fig. As shown in Figure 3, the axial length of the sliding post 43 is greater than the depth of the sliding hole 44, which effectively increases the contact area and the fitting depth between the sliding post 43 and the sliding hole 44, thereby increasing the guiding stability of the first right-angled block 51, preventing slippage, wobbling or jamming of the first right-angled block 51 during the forward and backward adjustment process, and improving the adjustment accuracy and the service life of the hinge.

[0024] As in the Fig. 2, Fig. 4 and Fig. As shown in Figure 5, each side of the first right-angled block 51 is provided with screw holes 41 for forward and backward adjustment. The first mounting seat 11 is provided with two sets of adjustment holes 42 for forward and backward adjustment, which are aligned with the screw holes 41 for forward and backward adjustment. The two sets of adjustment holes 42 for forward and backward adjustment and the corresponding screw holes 41 for forward and backward adjustment are each fitted with screws for forward and backward adjustment. The screws for forward and backward adjustment are guided through the corresponding adjustment holes 42 for forward and backward adjustment and screwed into the screw holes 41 for forward and backward adjustment. By turning the screws for forward and backward adjustment with the Allen key, the first right-angled block 51 is moved, thereby allowing the size of the door leaf and the door gap to be adjusted.

[0025] As in Fig. As shown in Figure 2, the adjusting bracket 9 is provided on both sides with adjustment holes 72 for left and right adjustment, wherein each of the second right-angled blocks 52 is provided with a screw hole 71 for left and right adjustment, which fits together with the corresponding adjustment hole 72 for left and right adjustment, wherein the screw holes 71 for left and right adjustment and the corresponding adjustment holes 72 for left and right adjustment are each mounted with screws for left and right adjustment, wherein the screws for left and right adjustment are guided through the adjustment holes 72 for left and right adjustment and screwed into the screw holes 71 for left and right adjustment.Between the adjusting bracket 9 and the second mounting seat 12 is a space for left and right adjustment; the adjustment holes 72 for left and right lateral adjustment are elongated bores. By turning the screws for left and right adjustment with a hex key, the adjusting bracket 9 is moved up and down within the second mounting seat 12, which corresponds to the left and right adjustment of the hinge.

[0026] The adjustment bracket 9 on both sides is also provided with screw holes 61 for upward and downward adjustment, wherein the second mounting seat 12 is provided at one end with two sets of adjustment holes 62 for upward and downward adjustment which match the screw holes 61 for upward and downward adjustment, wherein the screw holes 61 for upward and downward adjustment and the corresponding adjustment holes 62 for upward and downward adjustment are each fitted with screws for upward and downward adjustment, wherein the screws for upward and downward adjustment are guided through the adjustment holes 62 for upward and downward adjustment and screwed into the screw holes 61 for upward and downward adjustment.By turning the screws for up and down adjustment with the hexagon key, the swivel arm component is driven via the second right-angled block 52 for left and right adjustment, which corresponds to an up and down adjustment of the hinge.

[0027] As in the Fig. 4 and Fig. As shown in Figure 5, both the first pivot arm 31 and the second pivot arm 32 are provided with coaxially arranged sliding ends, wherein the first right-angled block 51 and the second right-angled block 52 are each provided with limit slides 33 at other ends, the sliding end being arranged in the corresponding slide to limit the direction of movement of the first pivot arm 31 and the second pivot arm 32.

[0028] The first pivot arm 31 and the second pivot arm 32 are arranged alternately. It should be noted that when the hinge opens and closes, the first and second components rotate relative to each other. The first pivot arm 31 rotates about a coaxially arranged pivot point as its center of axis, and the second pivot arm 32 also rotates about a coaxially arranged pivot point as its center of axis. The first and second pivot arms 31 and 32 are alternately pivoted, causing them to slide along the limit track 33. When the door leaf is closed with the hinge fixed, the other ends of the first and second pivot arms 31 slide into the lowest point of the limit track 33, thereby reducing the size of the door gap and increasing the support point and load-bearing capacity of the hinge.

[0029] As in the Fig. As shown in Figures 1 to 5, the surfaces of the first mounting seat 11 and the second mounting seat 12 are provided with several mounting holes 81. Specifically, mounting holes 81 are symmetrically arranged on the top and bottom surfaces of the first mounting seat 11 and on the top and bottom surfaces of the second mounting seat 12. The symmetrically arranged mounting holes 81 ensure that the first mounting seat 11 and the second mounting seat 12 are subjected to a more uniform force, thus guaranteeing a more stable hinge assembly.

[0030] As in the Fig.As shown in Figures 1 to 5, the surfaces of the first mounting seat 11 and the second mounting seat 12 are also provided with several connecting holes 82, the surfaces of the first mounting seat 11 and the second mounting seat 12 are also provided with trim covers 83, the trim covers 83 are firmly connected by the connecting holes 82 to cover the mounting holes 81 by the trim covers 83, to improve the aesthetics and to keep out dust.

[0031] The hinge is mounted in the door leaf and the door gap. The front and rear positions of the first right-angled block 51 are adjusted by turning the forward and backward adjustment screws with a hex key. The upper and lower positions of the second right-angled block 52 can be adjusted by turning the upward and downward adjustment screws. The upper and lower positions of the second right-angled block 52 can be adjusted by turning the left and right adjustment screws. After adjustment, the hinge of the fixed door leaf can be turned more easily.

[0032] The above descriptions represent only preferred embodiments of this utility model; it should be noted that a person skilled in the art in this field may make various improvements and modifications without deviating from the principle of this utility model. These improvements and refinements should also be taken into account within the scope of protection of this utility model.

Claims

[1] Three-dimensionally adjustable concealed hinge, characterized by , that it includes the following: a pivot arm component comprising a first pivot arm and a second pivot arm articulated to each other, wherein the first pivot arm has a coaxially arranged rotating end, and wherein the second pivot arm has a coaxially arranged rotating end; a first component comprising a first mounting seat and a first right-angled block, wherein both sides inside the mounting seat are each provided with the first right-angled block, wherein each of the first right-angled blocks is connected to a corresponding rotating end of the first pivot arm, wherein one end of the first right-angled block is provided with a sliding post, and wherein the first mounting seat has two sets of sliding holes; a second component comprising a second mounting seat, a second right-angle block and an adjustment bracket, wherein the second mounting seat is provided internally with the adjustment bracket, wherein both sides inside the adjustment bracket are each provided with a second right-angle block, wherein the second right-angle blocks are each connected to a corresponding rotating end of the second swivel arm, wherein the sliding hole of the first mounting seat interacts with the sliding post of the first right-angled block, wherein the sliding hole limits the sliding post and the axial length of the sliding post is greater than the depth of the sliding hole. [2] Three-dimensionally adjustable concealed hinge according to claim 1, characterized by, that on one side of the rectangular block a screw hole is provided for forward and backward adjustment, wherein the first mounting seat is provided with two sets of adjustment holes for forward and backward adjustment which are adapted to the screw holes for forward and backward adjustment, wherein the two sets of adjustment holes for forward and backward adjustment and the corresponding screw holes for forward and backward adjustment are each fitted with screws for forward and backward adjustment, wherein the screws for forward and backward adjustment are guided through the corresponding adjustment holes for forward and backward adjustment and screwed into the screw holes for forward and backward adjustment. [3] Three-dimensionally adjustable concealed hinge according to claim 1, characterized by, that the adjustment bracket is provided on both sides with adjustment holes for left and right adjustment, wherein the second right-angled blocks are each provided with a screw hole for left and right adjustment which matches the corresponding adjustment hole for left and right adjustment, wherein the screw holes for left and right adjustment are on the inside and the corresponding adjustment holes for left and right adjustment are each mounted with screws for left and right adjustment, wherein the screws for left and right adjustment are guided through the adjustment holes for left and right adjustment and screwed into the screw holes for left and right adjustment. [4] Three-dimensionally adjustable concealed hinge according to claim 3, characterized by, that the adjustment bracket is also provided on both sides with screw holes for upward and downward adjustment, wherein the second mounting seat is provided at one end with two sets of adjustment holes for upward and downward adjustment which match the screw holes for upward and downward adjustment, wherein the screw holes for upward and downward adjustment are on the inside and the corresponding adjustment holes for upward and downward adjustment are each fitted with screws for upward and downward adjustment, wherein the screws for upward and downward adjustment are passed through the adjustment holes for upward and downward adjustment and screwed into the screw holes for upward and downward adjustment. [5] Three-dimensionally adjustable concealed hinge according to claim 1, characterized by, that the first pivot arm and the second pivot arm are each provided with coaxially arranged sliding ends, wherein the first right-angled block and the second right-angled block are each provided with boundary slides at other ends, the sliding end being arranged in the corresponding slide. [6] Three-dimensionally adjustable concealed hinge according to claim 5, characterized by that the first swivel arm and the second swivel arm are arranged alternately. [7] Three-dimensionally adjustable concealed hinge according to claim 6, characterized by that one end of the first assembly seat is marked. [8] Three-dimensionally adjustable concealed hinge according to claim 1, characterized by that the surfaces of the first mounting seat and the second mounting seat are provided with multiple mounting holes. [9] Three-dimensionally adjustable concealed hinge according to claim 1, characterized bythat the surfaces of the first mounting seat and the second mounting seat are also provided with several connecting holes, wherein the surfaces of the first mounting seat and the second mounting seat are also provided with trim covers, wherein the trim covers are firmly connected via connecting holes.

Images