Novel cabinet door hinge
By canceling the tension spring, combined with the damper and the opening and closing power assist device, the problems of unsmooth opening and closing of the cabinet door hinge and the friction resistance are solved, and the effect of simplicity of installation, stable opening and closing and labor-saving is achieved.
Patent Information
- Application Number
- CN202311804508.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2025-07-18
AI Technical Summary
The existing cabinet door hinges have problems such as not tightly closing the door page, heavy opening and closing, large friction resistance, and imperfect structure, resulting in unsatisfactory use.
The tension spring is adopted, combined with the damper and the opening and closing assist and positioning device, including the bump and double torsion spring provided on the frame groove connecting rod to reduce friction and achieve simplified installation and angle adjustment of the hinge through the adjustment screw hole and the adjustment bolt structure.
It realizes the installation of hinges with simple and fast opening and closing smooth opening and closing, convenient use, small gap between door pages, adaptable to various installation forms, adjustable opening and closing angles, and automatically and slowly closing.
Smart Images
Figure CN120331576A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a novel cabinet door hinge. Background Art
[0002] A cabinet door hinge is a commonly used hardware component. The structure of the cabinet door hinge directly affects the installation and use of the cabinet door.
[0003] The applicant has long been dedicated to the technical research of cabinet door hinges and applied for a patent for a multi-functional linkage door hinge (2020104954885) in 2020: including a door leaf grooved pull rod, a door leaf grooved connecting rod, a door leaf base, a frame leaf grooved pull rod, a frame leaf grooved connecting rod, a frame leaf base, and a grooved adjustment bracket; one end of both the door leaf grooved pull rod and the frame leaf grooved pull rod is a straight arm, and the other end is an arc-shaped bent arm; one end of both the door leaf grooved connecting rod and the frame leaf grooved connecting rod is a straight arm, and the other end is a folded arm; the arc-shaped bent arm end of the door leaf grooved pull rod is movably connected to the door leaf base through a pin shaft, and the straight arm end is movably connected to the folded arm end of the frame leaf grooved connecting rod through a pin shaft; the straight arm end of the door leaf grooved connecting rod is movably connected to the door leaf base through a pin shaft, and the folded arm end is movably connected to the straight arm end of the frame leaf grooved pull rod through a pin shaft; the upper part of the frame leaf base is longitudinally a connecting ridge, and the lower part is transversely a fixing plate; the grooved adjustment bracket is fixed to the connecting ridge of the frame leaf base through a fastening screw; an adjusting screw is further provided between the grooved adjustment bracket and the connecting ridge of the frame leaf base; the arc-shaped bent arm of the frame leaf grooved pull rod is movably connected to the grooved adjustment bracket through a pin shaft; the straight arm end of the frame leaf grooved connecting rod is movably connected to the grooved adjustment bracket through a pin shaft; the door leaf grooved connecting rod and the frame leaf grooved connecting rod are movably connected through a pin shaft near the folded arm on the two straight arms; the included angle between the folded arm and the straight arm of the door leaf grooved connecting rod is equal to the included angle between the folded arm and the straight arm of the frame leaf grooved connecting rod, and is an obtuse angle; a damper is connected between the straight arm end of the door leaf grooved pull rod and the door leaf base, the tail end of the damper cylinder body is movably connected to the door leaf base, and the head end of the damper piston rod is movably connected to the straight arm end of the door leaf grooved pull rod; a tension spring is connected between the folded arm end of the door leaf grooved connecting rod and the grooved adjustment bracket, one end of the tension spring is connected to the folded arm end of the door leaf grooved connecting rod, and the other end is connected to the grooved adjustment bracket; a torsion spring is provided on the grooved adjustment bracket. The combination and use of the tension spring and the torsion spring of this hinge play a role in strong opening and closing, and can not only meet the installation requirements of several types such as inset, half-overlay, and full-overlay at the same time, but also be convenient for disassembly, adjustment, and use.
[0004] However, during the use process, other deficiencies are found, mainly including: the combined use of the tension spring and the torsion spring still fails to fundamentally solve the problem that the door leaf closes not tightly enough; and there is friction between the frame leaf groove-shaped connecting rod and the door leaf groove-shaped connecting rod during the working process of the hinge, which generates a large resistance to the opening and closing of the door leaf, resulting in heavy opening and closing of the door leaf, not easy and smooth; in addition, the overall structure of the hinge is not yet perfect enough, and the use effect is not ideal enough, such as the door leaf cannot automatically close and fasten when closed, and the two-way gap of the door leaf is relatively large after the door leaf is closed, etc.
[0005] In order to overcome this deficiency, the applicant has continuously conducted tests and research, and finally found a technical means to solve the problem, making the hinge easy, fast, and accurate to install, with smooth and stable opening and closing, and labor-saving and convenient to use. Summary of the Invention
[0006] The technical problem to be solved by the present invention is to provide a new type of cabinet door hinge that is easy and fast to install and labor-saving and convenient to use.
[0007] To solve the above technical problems, the new type of cabinet door hinge of the present invention includes a door leaf groove-shaped pull rod, a door leaf groove-shaped connecting rod, a door leaf base, a frame leaf groove-shaped pull rod, a frame leaf groove-shaped connecting rod, a frame leaf base, and a groove-shaped adjustment bracket; one end of both the door leaf groove-shaped pull rod and the frame leaf groove-shaped pull rod is a straight arm, and the other end is an arc-shaped bent arm; one end of both the door leaf groove-shaped connecting rod and the frame leaf groove-shaped connecting rod is a straight arm, and the other end is a folded arm; the arc-shaped bent arm end of the door leaf groove-shaped pull rod is movably connected to the door leaf base through a pin shaft, and the straight arm end is movably connected to the folded arm end of the frame leaf groove-shaped connecting rod through a pin shaft; the straight arm end of the door leaf groove-shaped connecting rod is movably connected to the door leaf base through a pin shaft, and the folded arm end is movably connected to the straight arm end of the frame leaf groove-shaped pull rod through a pin shaft; the upper part of the frame leaf base is longitudinally a connecting ridge, and the lower part is transversely a fixing plate; the groove-shaped adjustment bracket is fixed to the connecting ridge of the frame leaf base through a fastening screw; an adjustment screw is also provided between the groove-shaped adjustment bracket and the connecting ridge of the frame leaf base; the arc-shaped bent arm of the frame leaf groove-shaped pull rod is movably connected to the groove-shaped adjustment bracket through a pin shaft; the straight arm end of the frame leaf groove-shaped connecting rod is movably connected to the groove-shaped adjustment bracket through a pin shaft; the door leaf groove-shaped connecting rod and the frame leaf groove-shaped connecting rod are movably connected through a pin shaft on the two straight arms near the folded arm; the included angle between the folded arm and the straight arm of the door leaf groove-shaped connecting rod is equal to the included angle between the folded arm and the straight arm of the frame leaf groove-shaped connecting rod, and is an obtuse angle; a damper is connected between the straight arm end of the door leaf groove-shaped pull rod and the door leaf base, the tail end of the damper cylinder body is movably connected to the door leaf base, and the head end of the damper piston rod is movably connected to the straight arm end of the door leaf groove-shaped pull rod; it also includes an opening and closing assistance and positioning device, and the opening and closing assistance and positioning device includes a convex block and a torsion spring provided on the back of the straight arm end of the frame leaf groove-shaped connecting rod, the torsion spring pin shaft is fixed to the groove-shaped adjustment bracket, the torsion spring is a double torsion spring, and both ends of the torsion spring are in contact connection with the groove-shaped adjustment bracket, and the middle extending part is in contact connection with the convex block and can slide back and forth.
[0008] An outer protrusion is provided on the outer side of the straight arm of the frame page grooved link.
[0009] Outer protrusions are provided on both outer sides of the straight arm of the frame page grooved link.
[0010] The outer protrusion on the outer side of the straight arm of the frame page grooved link is provided at the movable connection with the door page grooved link.
[0011] Damper cylinder position limiting blocks are provided on both inner sides of the door page grooved pull rod.
[0012] An installation adjustment screw hole is provided on the back of the straight arm end of the frame page grooved pull rod. An adjustment screw is threadedly connected to the installation adjustment screw hole to adjust the angle required during hinge installation by adjusting the distance between the frame page grooved pull rod and the frame page grooved link.
[0013] The angle between the folding arm and the straight arm of the door page grooved link is equal to the angle between the folding arm and the straight arm of the frame page grooved link, which is an obtuse angle of 110 - 160°.
[0014] Flap pieces are provided on both inner sides of the grooved adjustment bracket, and both ends of the torsion spring are in contact connection below the flap pieces.
[0015] An adjustment bottom plate is in contact connection below the frame page base fixing plate; a surrounding edge is provided below the frame page base fixing plate, the adjustment bottom plate is located within the surrounding edge, and there is a gap between the adjustment bottom plate and the inner surface of the surrounding edge to enable the adjustment bottom plate to move horizontally within the surrounding edge below the frame page base; three horizontal grooved fixing holes and an adjustment hole are provided on both sides of the center line of the longitudinal connection back on the fixing plate of the frame page base; the adjustment bottom plate is provided with fixing holes corresponding to the horizontal grooved fixing holes on the frame page base, and an adjustment bolt is connected to the adjustment hole on the frame page base corresponding to the adjustment bottom plate; the adjustment bolt is provided with a fixed connection part, a connection part, and an adjustment part; the fixed connection part, the connection part, and the adjustment part are cylinders, the cylinder radius of the fixed connection part is smaller than that of the connection part, and the cylinder radius of the connection part is smaller than that of the adjustment part; one end of the fixed connection part is fixed to the adjustment bottom plate, and the other end is eccentrically fixed to the connection part; one end of the connection part is fixedly connected to the fixed connection part, and the other end is fixedly connected to the adjustment part; one end of the adjustment part is fixedly connected to the connection part, and a screwdriver slot is provided on the other end face; the cylindrical surface of the connection part is in contact with the inner surface of the adjustment hole on the frame page base; the adjustment part is located outside the adjustment hole on the frame page base and is in contact with the upper surface of the frame page base; a longitudinal adjustment groove is provided on the longitudinal connection back of the frame page base, and a longitudinal adjustment groove is also provided on the grooved adjustment bracket. The adjustment screw is arranged in the longitudinal adjustment groove on the frame page base and the longitudinal adjustment groove on the grooved adjustment bracket to perform longitudinal adjustment between the frame page base and the grooved adjustment bracket.
[0016] An adjusting plate is in contact connection with the lower surface of the fixing plate of the door leaf base; a protruding retaining piece is provided on one side below the fixing plate of the door leaf base, and the adjusting plate is located within the protruding retaining piece. There is a gap between the adjusting plate and the inner surface of the protruding retaining piece, enabling the adjusting plate to move longitudinally within the protruding retaining piece; two longitudinal grooved fixing holes are provided on one side of the door leaf base, and one longitudinal grooved fixing hole and one adjusting hole are provided on the other side; the adjusting plate is respectively provided with fixing holes corresponding to the longitudinal grooved fixing holes on one side of the door leaf base for fixed connection with the door; the adjusting plate is provided with an adjusting bolt fixing hole corresponding to the adjusting hole of the door leaf base; an adjusting bolt is provided in the adjusting hole on the fixing plate of the door leaf base, and the adjusting plate and the door leaf base are longitudinally adjusted through the adjusting bolt; the adjusting bolt is provided with a fixed connection portion, a connection portion, and an adjusting portion; the fixed connection portion, the connection portion, and the adjusting portion are cylindrical bodies, the cylindrical radius of the fixed connection portion is smaller than that of the connection portion, and the cylindrical radius of the connection portion is smaller than that of the adjusting portion; one end of the fixed connection portion is fixed to the adjusting bottom plate, and the other end is eccentrically fixed to the connection portion; one end of the connection portion is fixedly connected to the fixed connection portion, and the other end is fixedly connected to the adjusting portion; one end of the adjusting portion is fixedly connected to the connection portion, and a screwdriver groove is provided on the end surface of the other end; the cylindrical surface of the connection portion is in contact with the inner surface of the adjusting hole on the frame leaf base.
[0017] With the structure of the present invention, since the tension spring is cancelled and combined with the damping device, the opening and closing assisting and positioning device, the opening and closing assisting and positioning device includes a convex block and a torsion spring provided on the back of the straight arm end of the frame leaf grooved connecting rod. The torsion spring is fixed to the grooved adjusting bracket through a pin shaft. The torsion spring is a double torsion spring. Both ends of the torsion spring are in contact connection with the grooved adjusting bracket, and the middle protruding portion is movably connected to the convex block for reciprocating sliding. The damping device and the opening and closing assisting and positioning device cooperate with each other to enable the hinge to retain the original closing force and damping buffering effect when opening and closing, and at the same time, the opening and closing are easy, smooth, and more convenient and stable to use, overcoming the defects of the prior art.
[0018] An outer protruding block is provided on the outer side of the straight arm of the frame leaf grooved connecting rod, which can leave a certain gap between the frame leaf grooved connecting rod and the door leaf grooved connecting rod, thereby weakening and eliminating the friction between the frame leaf grooved connecting rod and the door leaf grooved connecting rod when the hinge opens and closes, further reducing the resistance of the door leaf to open and close, and making it more labor-saving and smooth when the door leaf opens and closes.
[0019] Damping cylinder limit blocks are also provided on both inner sides of the door leaf grooved pull rod of the present invention. In this way, the left and right movement of the damping cylinder is avoided, which affects the normal operation of the hinge and makes the opening and closing of the door leaf smoother.
[0020] An installation adjustment screw hole is also provided on the back of the straight arm end of the frame leaf grooved pull rod of the present invention, and an adjustment screw rod is connected to the installation adjustment screw hole. In this way, the angle required for hinge installation can be adjusted by adjusting the distance between the frame leaf grooved pull rod and the frame leaf grooved connecting rod, making the hinge installation more convenient and accurate; moreover, when using the cabinet doors of a double-sided door, the gap between the two doors can be very small.
[0021] The present invention further improves the structures of the frame page base and the door page base, so as to make it more convenient to adjust the relative positions during installation, and make the installation adjustment more convenient, fast and accurate.
[0022] Due to the provision of the grooved adjustment bracket, the grooved adjustment bracket is fixed to the frame page base by fastening screws. There is an adjustment base plate under the frame page base. In particular, the adjustment bolt is provided on the adjustment base plate corresponding to the adjustment hole on the frame page base. Moreover, the adjustment bolt has a unique structure, which includes a fixing part, a connecting part and an adjusting part. A surrounding edge is provided under the fixing plate of the frame page base. The adjustment base plate is located within the surrounding edge under the fixing plate. There is a gap between the adjustment base plate and the inner surface of the surrounding edge under the fixing plate, which enables the adjustment base plate to move horizontally within the surrounding edge under the fixing plate. When the door leaf needs to be disassembled, just unscrew the screw, and the frame page base does not need to be moved. Longitudinal adjustment grooves and fixing screw holes are provided on the longitudinal connecting ridge of the frame page base. The grooved adjustment bracket is respectively provided with fixing screw holes and longitudinal adjustment grooves, and is respectively connected with fastening screws and adjusting screws to perform longitudinal adjustment between the frame page base and the grooved adjustment bracket. When adjustment is required during installation, the longitudinal relative movement between the grooved adjustment bracket and the frame page base and the transverse relative movement between the frame page base and the adjustment base plate cooperate with each other to achieve all-round adjustment to achieve the purpose of the present invention.
[0023] An adjustment plate is in contact connection under the door page base. The door page base and the adjustment plate are respectively fixedly connected to the door by screws through longitudinal grooved fixing holes and fixing holes. The adjustment plate is fixedly connected to the adjustment hole of the door page base through an adjustment bolt. During installation, by adjusting the adjustment bolt, the adjustment plate can move longitudinally within the surrounding edge and the protruding retaining piece, and then tighten the screws of the longitudinal grooved fixing holes of the door page base. In this way, the installation and adjustment of the door are convenient. The adjustment of the door page base and the frame page base cooperate with each other to achieve all-round adjustment and better achieve the purpose of the present invention.
[0024] The structure of the present invention is simple and firm, overcoming the defects of the prior art. While retaining the advantages of the prior art, it is simple, fast and accurate to install, smooth and stable to open and close, and labor-saving and convenient to use.
[0025] The novel cabinet door hinge of the present invention is a multi-purpose hinge with novel design and complete functions. It can meet the needs of various forms such as full overlay, half overlay, inset and separate disassembly and assembly. Installation does not require drilling holes, no model selection is needed, installation is simple and easy, adjustment is fast and accurate, the opening angle is large, it can stay arbitrarily within the opening and closing setting range, it closes smoothly and automatically closes slowly, and the door leaves are neatly and roundly closed. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 is a perspective schematic diagram of the present invention; Figure 2 is a structural schematic diagram of the present invention; Figure 3 is a schematic diagram of the connection structure of the frame page base of the present invention; Figure 4 is a top view of the frame page base structure of the present invention; Figure 5 is a schematic diagram of the structure of the adjusting bolt of the present invention; Figure 6 is a schematic diagram of the connection structure of the door page base of the present invention; Figure 7 is a schematic diagram of the structure of the frame page groove-shaped connecting rod of the present invention. Detailed implementation manners
[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation manners: As Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, the novel cabinet door hinge of the present invention includes a door page groove-shaped pull rod 2, a door page groove-shaped connecting rod 4, a door page base 1, a frame page groove-shaped pull rod 13, a frame page groove-shaped connecting rod 5, a frame page base 21, and a groove-shaped adjustment bracket 8.
[0028] One end of both the door page groove-shaped pull rod 2 and the frame page groove-shaped pull rod 13 is a straight arm, and the other end is an arc-shaped bent arm.
[0029] One end of both the door page groove-shaped connecting rod 4 and the frame page groove-shaped connecting rod 5 is a straight arm, and the other end is a folded arm.
[0030] The arc-shaped bent arm end of the door page groove-shaped pull rod 2 is movably connected to the door page base 1 through a pin shaft, and the straight arm end is movably connected to the folded arm end of the frame page groove-shaped connecting rod 5 through a pin shaft.
[0031] The straight arm end of the door page groove-shaped connecting rod 4 is movably connected to the door page base 1 through a pin shaft, and the folded arm end is movably connected to the straight arm end of the frame page groove-shaped pull rod 13 through a pin shaft.
[0032] The upper part of the frame page base 21 is longitudinally a connecting ridge, and the lower part is transversely a fixing plate.
[0033] The groove-shaped adjustment bracket 8 is fixed to the connecting ridge of the frame page base 21 through a fastening screw 12.
[0034] The arc-shaped bent arm of the frame page groove-shaped pull rod 13 is movably connected to the groove-shaped adjustment bracket 8 through a pin shaft.
[0035] The straight arm end of the frame page groove-shaped connecting rod 5 is movably connected to the groove-shaped adjustment bracket 8 through a pin shaft.
[0036] The door page groove-shaped connecting rod 4 and the frame page groove-shaped connecting rod 5 are movably connected through a pin shaft at the positions close to the folded arms on the two straight arms.
[0037] The included angle between the folding arm and the straight arm of the door leaf channel-shaped connecting rod 4 is equal to the included angle between the folding arm and the straight arm of the frame leaf channel-shaped connecting rod 5, and is an obtuse angle. The included angle is an obtuse angle of 110-160°, and the included angle can be any value within this range.
[0038] A damper 3 is connected between the end of the straight arm of the door leaf channel-shaped tie rod and the door leaf base. The tail end of the damper cylinder is movably connected to the door leaf base, and the head end of the damper piston rod is movably connected to the end of the straight arm of the door leaf channel-shaped tie rod. When the hinge runs and closes, the damper will be quickly stretched through transmission. The piston rod drives the piston to slide hermetically in the cylinder to form a vacuum. Under the action of the vacuum force, it will inevitably prevent the damper from extending quickly. Therefore, when closing, the hinge can only slowly and freely close to achieve the purpose of buffering.
[0039] The damper is a prior art, such as a hydraulic tension damper.
[0040] It also includes an opening and closing assisting and positioning device. The opening and closing assisting and positioning device includes a convex block 9 and a torsion spring 10 provided on the back of the straight arm end of the frame leaf channel-shaped connecting rod 5. The torsion spring pin shaft is fixed to the channel-shaped adjusting bracket 8. The torsion spring is a double torsion spring. The two ends of the torsion spring are in contact connection with the channel-shaped adjusting bracket 8, and the middle protruding part is movably connected to the convex block 9. The torsion spring is formed by winding a spring steel wire straight once into two identical circles. The holes of the circles are concentric as the torsion spring connection holes. The two circles are brought together and the two steel wires in the middle extend straight in the same position along the circles. The top ends of the two steel wires are connected in the original wire body. Similarly, the steel wires on both sides of the circles extend straight in the same position along the circles. The steel wires extending on both sides and the steel wires extending in the middle form an included angle, which is 1-45° in the free state and 0--80° in the working state.
[0041] The two inner sides of the channel-shaped adjusting bracket 8 are provided with retaining pieces, and the two ends of the torsion spring are in contact connection below the retaining pieces.
[0042] Such as Figure 1 、 Figure 7 As shown, an outer convex block 24 is provided on the outer side of the straight arm of the frame leaf channel-shaped connecting rod 5.
[0043] Preferably, outer convex blocks are provided on both outer sides of the straight arm of the frame leaf channel-shaped connecting rod. The outer convex block 24 on the outer side of the straight arm of the frame leaf channel-shaped connecting rod 5 is provided at the movable connection with the door leaf channel-shaped connecting rod 4.
[0044] The opening and closing assisting and positioning device and the damper buffer structure cooperate with each other to make the hinge operation easier, smoother and more stable, and the use is more convenient, stable and reliable. Coupled with the outer convex block structure, only the outer convex block contacts between the outer side of the frame leaf channel-shaped connecting rod 5 and the inner side of the door leaf channel-shaped connecting rod 4, reducing the contact area and making the hinge operation easier, smoother and more stable.
[0045] Damper cylinder limit blocks can also be provided on both inner sides of the door leaf channel-shaped tie rod 2.
[0046] like Figure 1 , Figure 2 As shown, the straight arm end spine of the frame leaf groove type pull rod 13 is provided with an installation adjustment screw hole 25, and the installation adjustment screw hole 25 is threadedly connected with an adjustment screw 23 to adjust the opening and closing angle of the hinge during installation by adjusting the distance between the frame leaf groove type pull rod 13 and the frame leaf groove type connecting rod 5.
[0047] like Figure 3 , Figure 4 As shown, in order to enhance the installation and adjustment effect, the frame leaf base 21 fixing plate is contacted and connected with an adjustment base plate 22 below. A peripheral edge is provided below the frame leaf base fixing plate, and the adjustment base plate is located inside the peripheral edge. There is a gap between the adjustment base plate and the inner surface of the peripheral edge so that the adjustment base plate can move laterally inside the peripheral edge below the frame leaf base. Three transverse groove-type fixing holes and an adjustment hole are provided on the fixing plate of the frame leaf base on both sides of the center line of the longitudinal connection spine. The adjustment base plate is provided with fixing holes corresponding to the transverse groove-type fixing holes on the frame leaf base, and the adjustment base plate is connected with an adjustment bolt corresponding to the adjustment hole on the frame leaf base. The adjustment part is located outside the adjustment hole of the frame leaf base and contacts with the top of the frame leaf base. A longitudinal adjustment groove and a fixing screw hole are provided on the longitudinal connection spine on the frame leaf base 21, and a fixing screw hole and a longitudinal adjustment groove are respectively provided on the groove-type adjustment bracket 8, and an adjustment screw 11 is provided between the groove-type adjustment bracket 8 and the frame leaf base 21 connection spine. The adjusting screw 11 is connected to the fixing screw hole on the frame leaf base and the longitudinal adjustment slot on the slot type adjustment bracket to adjust longitudinally between the frame leaf base and the slot type adjustment bracket. The fastening screw 12 is connected to the fixing screw hole of the frame leaf base 21 connecting the longitudinal adjustment slot and the slot type adjustment bracket 8 on the spine.
[0048] During installation, first fix the adjustment base plate and frame leaf base to the frame leaf with screws through the fixing holes, then adjust the installation angle distance by rotating the adjustment bolt, and then tighten the screws of the other two slotted fixing holes. When rotating the adjustment bolt, the adjustment base plate is fixed to the frame leaf and does not move, and the frame leaf base moves horizontally relative to achieve the purpose of adjustment.
[0049] In order to facilitate adjustment, the adjustment base plate, frame leaf base and slot adjustment bracket are linked to enhance the installation and adjustment effect, and a special structure adjustment bolt is set. Figure 5 As shown, the adjusting bolt is provided with a fixing portion 16, a connecting portion 15 and an adjusting portion 14. The fixing portion, the connecting portion and the adjusting portion are cylindrical, the cylindrical radius of the fixing portion is smaller than that of the connecting portion, and the cylindrical radius of the connecting portion is smaller than that of the adjusting portion. One end of the fixing portion is riveted and fixed to the adjusting base plate, and the other end is eccentrically fixed to the connecting portion. One end of the connecting portion is fixedly connected to the fixing portion, and the other end is fixedly connected to the adjusting portion; one end of the adjusting portion is fixedly connected to the connecting portion, and the end face of the other end is provided with a screwdriver groove. The cylindrical surface of the connecting portion contacts the inner surface of the adjusting hole on the frame leaf base. The adjusting portion is located outside the adjusting hole of the frame leaf base and contacts the upper surface of the frame leaf base.
[0050] As Figure 1 , Figure 6 shown, for the convenience of installation and adjustment, an adjusting plate 19 is in contact connection with the lower surface of the fixing plate of the door leaf base 1. On one side below the fixing plate of the door leaf base, there is a protruding retaining piece 17. The adjusting plate is located within the protruding retaining piece, and there is a gap between the adjusting plate and the inner surface of the protruding retaining piece, enabling the adjusting plate to move longitudinally within the protruding retaining piece. On one side of the fixing plate of the door leaf base, there are two longitudinal groove-shaped fixing holes, and on the other side, there is one longitudinal groove-shaped fixing hole and one adjusting hole. The adjusting plate is respectively provided with fixing holes 18 corresponding to the longitudinal groove-shaped fixing holes and the adjusting hole of the door leaf base. The adjusting plate is connected with an adjusting bolt 20 corresponding to the adjusting hole of the door leaf base, and the longitudinal adjustment between the adjusting plate and the door leaf base is carried out through the adjusting bolt. The structure of the adjusting bolt is as Figure 4 shown. The adjusting bolt is provided with a fixed connection part, a connection part, and an adjusting part. The fixed connection part, the connection part, and the adjusting part are cylinders. The cylinder radius of the fixed connection part is smaller than that of the connection part, and the cylinder radius of the connection part is smaller than that of the adjusting part. One end of the fixed connection part is fixed to the adjusting bottom plate, and the other end is eccentrically fixed to the connection part. One end of the connection part is fixedly connected to the fixed connection part, and the other end is fixedly connected to the adjusting part. One end of the adjusting part is fixedly connected to the connection part, and a screwdriver slot is provided on the end surface of the other end; the cylindrical surface of the connection part is in contact with the inner surface of the adjusting hole on the frame leaf base.
Claims
1. A new type of cabinet door hinge, characterized in that: It includes a door leaf channel tie rod (2), a door leaf channel connecting rod (4), a door leaf base (1), a frame leaf channel tie rod (13), a frame leaf channel connecting rod (5), a frame leaf base (21) and a channel adjusting bracket (8); one end of both the door leaf channel tie rod (2) and the frame leaf channel tie rod (13) is a straight arm, and the other end is an arc-shaped bent arm; one end of both the door leaf channel connecting rod (4) and the frame leaf channel connecting rod (5) is a straight arm, and the other end is a folded arm; the arc-shaped bent arm end of the door leaf channel tie rod (2) is movably connected to the door leaf base (1) through a pin shaft, and the straight arm end is movably connected to the folded arm end of the frame leaf channel connecting rod (5) through a pin shaft; the straight arm end of the door leaf channel connecting rod (4) is movably connected to the door leaf base (1) through a pin shaft, and the folded arm end is movably connected to the straight arm end of the frame leaf channel tie rod (13) through a pin shaft; the upper part of the frame leaf base (21) is longitudinally a connecting ridge, and the lower part is transversely a fixing plate; the channel adjusting bracket (8) is fixed to the connecting ridge of the frame leaf base (21) through a fastening screw (12); the arc-shaped bent arm of the frame leaf channel tie rod (13) is movably connected to the channel adjusting bracket (8) through a pin shaft; the straight arm end of the frame leaf channel connecting rod (5) is movably connected to the channel adjusting bracket (8) through a pin shaft; the door leaf channel connecting rod (4) and the frame leaf channel connecting rod (5) are movably connected through a pin shaft at the positions close to the folded arms on the two straight arms; the included angle between the folded arm and the straight arm of the door leaf channel connecting rod (4) is equal to the included angle between the folded arm and the straight arm of the frame leaf channel connecting rod (5), and is an obtuse angle; a damper (3) is connected between the straight arm end of the door leaf channel tie rod and the door leaf base, the tail end of the damper cylinder body is movably connected to the door leaf base, and the head end of the damper piston rod is movably connected to the straight arm end of the door leaf channel tie rod; it further includes an opening and closing assisting and positioning device, and the opening and closing assisting and positioning device includes a convex block (9) and a torsion spring (10) provided on the back of the straight arm end of the frame leaf channel connecting rod (5), the pin shaft of the torsion spring is fixed to the channel adjusting bracket (8), the torsion spring is a double torsion spring, and both ends of the torsion spring are in contact connection with the channel adjusting bracket (8), and the middle protruding part is in contact connection with the convex block (9) and can slide back and forth.
2. The novel cabinet door hinge according to claim 1, wherein: An external protruding block (24) is provided on the outer side of the straight arm of the frame leaf channel connecting rod (5).
3. The novel cabinet door hinge according to claim 2, wherein: External protruding blocks are provided on both outer sides of the straight arm of the frame leaf channel connecting rod; the external protruding block (24) on the outer side of the straight arm of the frame leaf channel connecting rod (5) is provided at the movable connection position with the door leaf channel connecting rod (4).
4. The novel cabinet door hinge according to claim 1, characterized in that: Damper cylinder body limit blocks are provided on both inner sides of the door leaf channel tie rod (2).
5. The novel cabinet door hinge according to claim 1, characterized in that: An installation adjusting screw hole (25) is provided on the ridge of the straight arm end of the frame leaf channel tie rod (13), and an adjusting screw rod (23) is threadedly connected to the installation adjusting screw hole (25) to adjust the angle required for hinge installation by adjusting the distance between the frame leaf channel tie rod (13) and the frame leaf channel connecting rod (5).
6. The novel cabinet door hinge according to claim 1, wherein: The included angle between the folded arm and the straight arm of the door leaf channel connecting rod (4) is equal to the included angle between the folded arm and the straight arm of the frame leaf channel connecting rod (5), and is an obtuse angle of 110 - 160°.
7. The novel cabinet door hinge according to claim 1, characterized in that: The inner sides of the grooved adjustment bracket (8) are provided with retaining pieces, and the two ends of the torsion spring are in contact connection below the retaining pieces.
8. The novel cabinet door hinge according to claim 1, wherein: The adjustment base plate (22) is in contact connection with the lower surface of the fixed plate of the frame page base (21); a surrounding edge is provided below the fixed plate of the frame page base, the adjustment base plate is located within the surrounding edge, and there is a gap between the adjustment base plate and the inner surface of the surrounding edge to enable the adjustment base plate to move horizontally within the surrounding edge below the frame page base; three horizontal grooved fixing holes and an adjustment hole are provided on both sides of the center line of the longitudinal connecting ridge on the fixed plate of the frame page base; the adjustment base plate is provided with fixing holes corresponding to the horizontal grooved fixing holes on the frame page base, and an adjustment bolt is connected to the adjustment hole on the frame page base corresponding to the adjustment base plate; the adjustment part is located outside the adjustment hole of the frame page base and is in contact with the upper surface of the frame page base; a longitudinal adjustment groove and a fixing screw hole are provided on the longitudinal connecting ridge of the frame page base (21), and the grooved adjustment bracket (8) is respectively provided with a fixing screw hole and a longitudinal adjustment groove, and an adjustment screw (11) is provided between the connecting ridges of the grooved adjustment bracket (8) and the frame page base (21), and the adjustment screw (11) is connected to the fixing screw hole on the frame page base and the longitudinal adjustment groove on the grooved adjustment bracket to perform longitudinal adjustment between the frame page base and the grooved adjustment bracket; the fastening screw (12) is connected to the longitudinal adjustment groove on the connecting ridge of the frame page base (21) and the fixing screw hole of the grooved adjustment bracket (8).
9. The novel cabinet door hinge according to claim 8, characterized in that: The adjustment bolt is provided with a fixed connection part (16), a connection part (15) and an adjustment part (14); the fixed connection part, the connection part and the adjustment part are cylinders, the cylinder radius of the fixed connection part is smaller than that of the connection part, and the cylinder radius of the connection part is smaller than that of the adjustment part; one end of the fixed connection part is fixed to the adjustment base plate, and the other end is eccentrically fixed to the connection part; one end of the connection part is fixedly connected to the fixed connection part, and the other end is fixedly connected to the adjustment part; one end of the adjustment part is fixedly connected to the connection part, and a screwdriver groove is provided on the other end face; the cylindrical surface of the connection part is in contact with the inner surface of the adjustment hole on the frame page base.
10. The novel cabinet door hinge according to claim 1, characterized in that: An adjusting plate (19) is in contact connection with the lower surface of the fixing plate of the door leaf base; a protruding stop piece (17) is provided on one side below the fixing plate of the door leaf base, the adjusting plate is located within the protruding stop piece, and there is a gap between the adjusting plate and the inner surface of the protruding stop piece, enabling the adjusting plate to make longitudinal movement within the protruding stop piece; two longitudinal groove-shaped fixing holes are provided on one side of the fixing plate of the door leaf base, and one longitudinal groove-shaped fixing hole and one adjusting hole are provided on the other side; the adjusting plate is respectively provided with fixing holes (18) corresponding to the longitudinal groove-shaped fixing holes of the door leaf base; the adjusting plate is connected with an adjusting bolt (20) corresponding to the adjusting hole of the door leaf base, and the longitudinal adjustment between the adjusting plate and the door leaf base is carried out through the adjusting bolt; the adjusting bolt is provided with a fixed connection part, a connection part and an adjusting part; the fixed connection part, the connection part and the adjusting part are cylinders, the cylinder radius of the fixed connection part is smaller than that of the connection part, and the cylinder radius of the connection part is smaller than that of the adjusting part; one end of the fixed connection part is fixed to the adjusting bottom plate, and the other end is eccentrically fixed to the connection part; one end of the connection part is fixedly connected with the fixed connection part, and the other end is fixedly connected with the adjusting part; one end of the adjusting part is fixedly connected with the connection part, and a screwdriver groove is provided on the end surface of the other end; the cylindrical surface of the connection part is in contact with the inner surface of the adjusting hole on the frame leaf base.