Protective hydraulic hinge

Abstract

The utility model relates to a protective type hydraulic hinge, which belongs to the technical field of hinges and comprises a fixed cylinder, and the upper surface of the fixed cylinder is rotatably communicated with a first hydraulic cylinder through a sealing bearing. According to the protection type hydraulic hinge, when the hinge pieces on the left side and the right side rotate, a first connecting plate drives a first hydraulic cylinder to rotate on the upper surface of a fixing cylinder, a second connecting plate drives a second hydraulic cylinder to rotate on the lower surface of the fixing cylinder, then hydraulic oil flows through an oil hole, and the diameter of the oil hole is small; therefore, the closing speed of the door can be adjusted through the protection type hydraulic hinges, the door can be slowly closed through the protection type hydraulic hinges, noise and damage caused by too fast door closing are avoided, meanwhile, the door and the door frame can be protected to a certain degree, the service life of the door and the door frame is prolonged, and the safety performance of the door is improved. And meanwhile, due to the design of the hidden protective hydraulic hinge, the appearance is neater and more attractive, and the functional requirement is met at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge technical field, concretely is a protective type hydraulic hinge. BACKGROUND

[0002] Hinge is also called hinge, is used to connect two solids and allow the relative rotation between two mechanical devices, hinge is the key component of connecting door and window and frame, the traditional hinge structure is simple, mainly plays the role of connection and rotation, along with the progress of technology, gradually appeared on the market with the buffer function protective type hydraulic hinge, it can provide buffer when the door and window close, avoid violent impact.

[0003] For example, China patent CN218991248U discloses a hinge, including the upper hinge and lower hinge connected by the pivot, the upper hinge and lower hinge all include fixed part and shaft joint, the shaft joint of upper hinge and lower hinge coaxial rotation connection, still include fixed seat, the fixed seat is the cuboid casing, the fixed seat one side along its length direction is provided with the long strip shape and is opened slot, the fixed part of lower hinge is flat and is fixedly arranged in the opening slot of fixed seat, the fixed part of upper hinge is the board body that the cross section is inverted L shape, the fixed part lower end surface of upper hinge is located the upper end surface of fixed seat, the utility model is aimed at solving or at least reducing the problem that the existing hinge structure causes the door leaf rebound, the door gap exposure, the door gap size is not the same, provides a hinge.

[0004] Although the above-mentioned patent solves or at least reduces the problem that the existing hinge structure causes the door leaf rebound, the door gap exposure, the door gap size is not the same, but the hinge in the patent is not provided with a buffer structure, when the door is closed by force through the hinge, the door will hit the door and window, produce certain noise, and the door or door frame will be damaged when hitting, reduce the practicality. UTILITY MODEL CONTENTS

[0005] In view of the defects of the prior art, the utility model provides a protective type hydraulic hinge, which has the advantages of hydraulic buffering, and solves the problem that the hinge is not provided with a buffer structure, the door will hit the door and window when the door is closed by force through the hinge, produce certain noise, and the door or door frame will be damaged when hitting, reduce the practicality.

[0006] To achieve the above object, the utility model provides the following technical scheme: a protective type hydraulic hinge, including fixed cylinder, the upper surface of fixed cylinder is rotatably connected with first hydraulic cylinder through sealing bearing, the lower surface of fixed cylinder is rotatably connected with second hydraulic cylinder through sealing bearing, the left side of first hydraulic cylinder is provided with first connecting plate, the right side of second hydraulic cylinder is provided with second connecting plate, the inside of second hydraulic cylinder is equipped with buffer mechanism, the upper surface of first connecting plate and the lower surface of second connecting plate are equipped with connecting mechanism.

[0007] The buffer mechanism comprises a fixed block, a torsion spring, a rectangular piston block, two oil holes, a sealing cover, a fixed plug and hydraulic oil, the fixed block is arranged in the interior of the second hydraulic cylinder, the torsion spring is arranged on the upper surface of the fixed block, the torsion spring is located in the interior of the first hydraulic cylinder, the fixed cylinder and the second hydraulic cylinder, the rectangular piston block is arranged on the upper surface of the torsion spring, the two oil holes are both arranged on the left and right sides of the lower surface of the rectangular piston block, the hydraulic oil is arranged in the interior of the first hydraulic cylinder, the fixed cylinder and the second hydraulic cylinder and on the upper side of the fixed block, the sealing cover is fixed on the upper surface of the first hydraulic cylinder through bolts, the fixed plug is arranged on the lower surface of the sealing cover and located in the interior of the first hydraulic cylinder.

[0008] By adopting the technical scheme, hydraulic buffering can be realized.

[0009] Further, the rectangular piston block moves linearly up and down in the interior of the first hydraulic cylinder, and the rectangular piston block cooperates with the gap of the first hydraulic cylinder.

[0010] By adopting the technical scheme, the rectangular piston block can move up and down in the interior of the first hydraulic cylinder through the oil holes on the left and right sides.

[0011] Further, the fixed plug is a rubber plug, and the fixed plug cooperates with the gap of the first hydraulic cylinder.

[0012] By adopting the technical scheme, the interior of the top end of the first hydraulic cylinder can be sealed through the fixed plug.

[0013] Further, the oil holes on the left and right sides are symmetrically distributed on the left and right sides of the longitudinal central axis of the rectangular piston block.

[0014] By adopting the technical scheme, the left and right deformed leaves can be conveniently overhauled.

[0015] Further, the connecting mechanism comprises two threaded grooves, four plug-in grooves, four connecting blocks, two fixed bolts, four threaded holes and two leaves, the two threaded grooves are both arranged on the upper surface of the first connecting plate and the lower surface of the second connecting plate, the four plug-in grooves are both arranged on the upper and lower sides of the opposite sides of the first connecting plate and the second connecting plate, the four threaded holes are both arranged on the upper surface of the four connecting blocks, the connecting blocks are slidably plugged in the plug-in grooves, the fixed bolts are both threadedly connected in the threaded grooves and the threaded holes, the two leaves are both arranged on the opposite sides of the left and right connecting blocks, and the opposite sides of the left and right leaves are both attached to the opposite sides of the first connecting plate and the second connecting plate.

[0016] By adopting the technical scheme,

[0017] Further, the connecting block is matched with the gap of the plug-in slot, and the connecting block moves linearly left and right inside the plug-in slot.

[0018] By adopting the technical scheme, the connecting block can be plugged inside the plug-in slot.

[0019] Further, the front surface of the page piece is provided with a plurality of mounting holes.

[0020] By adopting the technical scheme, the mounting holes can be fixedly connected with the door and the door frame.

[0021] Further, the rectangular piston block comprises a moving block, and a sealing rubber ring is embedded and fixed to the inside of the outer side of the moving block.

[0022] By adopting the technical scheme, the rectangular piston block can move linearly up and down inside the first hydraulic cylinder.

[0023] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0024] 1. When the left and right page pieces rotate, the first connecting plate drives the first hydraulic cylinder to rotate on the upper surface of the fixed cylinder, the second connecting plate drives the second hydraulic cylinder to rotate on the lower surface of the fixed cylinder, the deformation force of the torsion spring fixed on the upper surface of the fixed block forces the rectangular piston block to move up and down inside the first hydraulic cylinder, and then the hydraulic oil flows through the oil hole. Since the oil hole has a small diameter, the speed of the left and right page pieces is hindered, so that the closing speed of the door can be adjusted by the protective hydraulic hinge, and the door can be slowly closed by the protective hydraulic hinge, thereby avoiding noise and damage caused by closing the door too fast. At the same time, it can also protect the door and the door frame to some extent, prolong the service life, and the design of the hidden protective hydraulic hinge makes it more clean and beautiful in appearance, while meeting the functional requirements.

[0025] 2. The protective hydraulic hinge can be disassembled by twisting the left and right fixed bolts, then pulling the left and right page pieces in opposite directions, and then moving the left and right connecting blocks out of the inside of the left and right plug-in slots, so that the left and right page pieces can be disassembled, and the deformed page pieces can be easily repaired. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 It is a structural schematic view of the utility model;

[0027] Fig. 2 It is a three-dimensional structural schematic view of the first hydraulic cylinder of the utility model;

[0028] Fig. 3The utility model discloses a buffer mechanism schematic view.

[0029] Fig. 4 The utility model discloses a connecting mechanism schematic view.

[0030] In the drawing: 1, fixed cylinder, 2, first hydraulic cylinder, 3, second hydraulic cylinder, 4, first connecting plate, 5, second connecting plate, 6, buffer mechanism, 61, fixed block, 62, torsion spring, 63, rectangular piston block, 64, oil hole, 65, sealing cover, 66, fixed plug, 67, hydraulic oil, 7, connecting mechanism, 71, threaded groove, 72, plug-in slot, 73, connecting block, 74, fixed bolt, 75, threaded hole, 76, page piece. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the range of the utility model protection.

[0032] Please refer to Figs. 1-2 The protective type hydraulic hinge in the embodiment includes a fixed cylinder 1, a first hydraulic cylinder 2 is rotationally connected to the upper surface of the fixed cylinder 1 through a sealing bearing, a second hydraulic cylinder 3 is rotationally connected to the lower surface of the fixed cylinder 1 through a sealing bearing, a first connecting plate 4 is arranged on the left side of the first hydraulic cylinder 2, a second connecting plate 5 is arranged on the right side of the second hydraulic cylinder 3, a buffer mechanism 6 is arranged in the second hydraulic cylinder 3, the buffer mechanism 6 can perform hydraulic buffering, a connecting mechanism 7 is arranged on the upper surface of the first connecting plate 4 and the lower surface of the second connecting plate 5, and the connecting mechanism 7 is convenient for overhauling the left and right side deformed page piece 76.

[0033] Please refer to Fig. 3 In order to be able to perform hydraulic buffering, the buffer mechanism 6 in the embodiment includes a fixed block 61, a torsion spring 62, a rectangular piston block 63, two oil holes 64, a sealing cover 65, a fixed plug 66 and hydraulic oil 67, the fixed block 61 is arranged in the second hydraulic cylinder 3, the torsion spring 62 is arranged on the upper surface of the fixed block 61, the torsion spring 62 is located in the first hydraulic cylinder 2, the fixed cylinder 1 and the second hydraulic cylinder 3, the rectangular piston block 63 is arranged on the upper surface of the torsion spring 62, and the first hydraulic cylinder 2 is internally provided with a rectangular opening matched with the gap of the rectangular piston block 63.

[0034] In the embodiment, the two oil holes 64 are both provided on the left and right sides of the lower surface of the rectangular piston block 63, the hydraulic oil 67 is arranged inside the first hydraulic cylinder 2, the fixed cylinder 1 and the second hydraulic cylinder 3 and located on the upper side of the fixed block 61, the sealing cover 65 is fixed on the upper surface of the first hydraulic cylinder 2 by bolts, and the fixed plug 66 is arranged on the lower surface of the sealing cover 65 and located inside the first hydraulic cylinder 2.

[0035] In the embodiment, the rectangular piston block 63 moves linearly up and down inside the first hydraulic cylinder 2, the gap between the rectangular piston block 63 and the first hydraulic cylinder 2 is matched, the fixed plug 66 is a rubber plug, and the gap between the fixed plug 66 and the first hydraulic cylinder 2 is matched, and the left and right oil holes 64 are symmetrically distributed on the left and right sides of the longitudinal central axis of the rectangular piston block 63.

[0036] It should be noted that the hydraulic oil 67 flows through the oil hole 64, and because the diameter of the oil hole 64 is small, the speed of rotation of the first connecting plate 4 and the second connecting plate 5 is hindered, so that the closing speed of the door can be adjusted by the protective hydraulic hinge, and the door can be slowly closed by the protective hydraulic hinge, thereby avoiding noise and damage caused by closing the door too fast, and at the same time, it can also protect the door and the door frame to some extent, prolong the service life, and the design of the hidden protective hydraulic hinge makes it more clean and beautiful in appearance, while meeting the functional requirements.

[0037] Please refer to Fig. 4 In order to facilitate the maintenance of the left and right side deformed leaf pieces 76, the connecting mechanism 7 in the embodiment includes two threaded grooves 71, four plug-in grooves 72, four connecting blocks 73, two fixed bolts 74, four threaded holes 75 and two leaf pieces 76. The two threaded grooves 71 are both provided on the upper surface of the first connecting plate 4 and the lower surface of the second connecting plate 5, the four plug-in grooves 72 are both provided on the upper and lower sides of the opposite sides of the first connecting plate 4 and the second connecting plate 5, and the four threaded holes 75 are both provided on the upper surface of the four connecting blocks 73.

[0038] In the embodiment, the connecting block 73 is slidingly plugged into the plug-in groove 72, the fixed bolt 74 is threadedly connected inside the threaded groove 71 and the threaded hole 75, and the two leaf pieces 76 are arranged on the opposite side of the left and right connecting blocks 73. When the left and right leaf pieces 76 rotate, the first connecting plate 4 drives the first hydraulic cylinder 2 to rotate on the upper surface of the fixed cylinder 1, the second connecting plate 5 drives the second hydraulic cylinder 3 to rotate on the lower surface of the fixed cylinder 1, and the deformation force generated by the torsion spring 62 fixed on the upper surface of the fixed block 61 forces the rectangular piston block 63 to move up and down inside the first hydraulic cylinder 2.

[0039] In the embodiment, the left page sheet 76 can be fixed on the door frame, and the right page sheet 76 can be fixed on the door. By arranging the protective hydraulic hinge, the protective hydraulic hinge can be penetrated by hydraulic pressure when the door is closed, reducing the impact of the door on the door frame, reducing the sound of closing the door, and improving the practicability.

[0040] The opposite side of the left and right side page sheets 76 is attached to the opposite side of the first connecting plate 4 and the second connecting plate 5. By twisting the left and right side fixing bolts 74, the left and right side fixing bolts 74 can be removed from the inside of the left and right side threaded grooves 71. Then, the left and right side page sheets 76 are pulled in opposite directions, and the left and right side connecting blocks 73 are removed from the inside of the left and right side insertion grooves 72.

[0041] In the embodiment, the gap between the connecting block 73 and the insertion groove 72 cooperates, and the connecting block 73 moves linearly inside the insertion groove 72. The front surface of the page sheet 76 penetrates to open a number of mounting holes not less than two. The rectangular piston block 63 includes a moving block, and the moving block outside is embedded with a sealing rubber ring.

[0042] It should be noted that the left and right side page sheets 76 can be disassembled for easy maintenance of the deformed left and right side page sheets 76.

[0043] The working principle of the above embodiment is as follows:

[0044] (1) When the left and right side page sheets 76 are rotated, the first connecting plate 4 drives the first hydraulic cylinder 2 to rotate on the upper surface of the fixed cylinder 1, and the second connecting plate 5 drives the second hydraulic cylinder 3 to rotate on the lower surface of the fixed cylinder 1. The deformation force generated by the torsion spring 62 fixed on the upper surface of the fixed block 61 forces the rectangular piston block 63 to move up and down inside the first hydraulic cylinder 2, and then the hydraulic oil 67 flows from the oil hole 64. Because the oil hole 64 has a small diameter, the speed of the left and right side page sheets 76 is hindered, so the protective hydraulic hinge can adjust the closing speed of the door, and the protective hydraulic hinge can slowly close the door, avoiding noise and damage caused by closing the door too fast. At the same time, it can also protect the door and the door frame to some extent, prolong the service life, and the design of the hidden protective hydraulic hinge makes it more clean and beautiful in appearance, while meeting the functional requirements.

[0045] (2) By twisting the left and right side fixing bolts 74, the left and right side fixing bolts 74 can be removed from the inside of the left and right side threaded grooves 71. Then, the left and right side page sheets 76 are pulled in opposite directions, and the left and right side connecting blocks 73 are removed from the inside of the left and right side insertion grooves 72. The left and right side page sheets 76 can be disassembled for easy maintenance of the deformed left and right side page sheets 76.

Claims

1. A protective hydraulic hinge, comprising a fixed cylinder (1), characterized in that: The upper surface of the fixed cylinder (1) is rotatably connected to the first hydraulic cylinder (2) through a sealed bearing, and the lower surface of the fixed cylinder (1) is rotatably connected to the second hydraulic cylinder (3) through a sealed bearing. A first connecting plate (4) is provided on the left side of the first hydraulic cylinder (2), and a second connecting plate (5) is provided on the right side of the second hydraulic cylinder (3). A buffer mechanism (6) is provided inside the second hydraulic cylinder (3), and a connecting mechanism (7) is provided on the upper surface of the first connecting plate (4) and the lower surface of the second connecting plate (5). The buffer mechanism (6) includes a fixed block (61), a torsion spring (62), a rectangular piston block (63), two oil holes (64), a sealing cap (65), a fixing plug (66), and hydraulic oil (67). The fixed block (61) is located inside the second hydraulic cylinder (3). The torsion spring (62) is located on the upper surface of the fixed block (61). The torsion spring (62) is located inside the first hydraulic cylinder (2), the fixed cylinder (1), and the second hydraulic cylinder (3). The rectangular piston block (63) is located on the upper surface of the fixed block (61). On the upper surface of the force spring (62), two oil holes (64) are opened through the left and right sides of the lower surface of the rectangular piston block (63). The hydraulic oil (67) is located inside the first hydraulic cylinder (2), the fixed cylinder (1) and the second hydraulic cylinder (3), and is located on the upper side of the fixed block (61). The sealing cover (65) is fixed to the upper surface of the first hydraulic cylinder (2) by bolts. The fixing plug (66) is located on the lower surface of the sealing cover (65) and is located inside the first hydraulic cylinder (2).

2. The protective hydraulic hinge according to claim 1, characterized in that: The rectangular piston block (63) moves linearly up and down inside the first hydraulic cylinder (2), and the rectangular piston block (63) and the first hydraulic cylinder (2) are fitted with a gap.

3. The protective hydraulic hinge according to claim 1, characterized in that: The fixing plug (66) is a rubber plug, and the fixing plug (66) is fitted with the gap of the first hydraulic cylinder (2).

4. The protective hydraulic hinge according to claim 1, characterized in that: The oil holes (64) on the left and right sides are symmetrically distributed on the left and right sides of the longitudinal central axis of the rectangular piston block (63).

5. The protective hydraulic hinge according to claim 1, characterized in that: The connecting mechanism (7) includes two threaded grooves (71), four insertion grooves (72), four connecting blocks (73), two fixing bolts (74), four threaded holes (75), and two blades (76). The two threaded grooves (71) are opened on the upper surface of the first connecting plate (4) and the lower surface of the second connecting plate (5). The four insertion grooves (72) are opened on the upper and lower sides of the opposite side of the first connecting plate (4) and the second connecting plate (5). The four threaded holes (75) are opened through the upper surface of the four connecting blocks (73). The connecting blocks (73) are slidably inserted into the inside of the insertion grooves (72). The fixing bolts (74) are threadedly connected to the inside of the threaded grooves (71) and the threaded holes (75). The two blades (76) are arranged on the opposite side of the left and right connecting blocks (73). The opposite side of the left and right blades (76) are in contact with the opposite side of the first connecting plate (4) and the second connecting plate (5).

6. The protective hydraulic hinge according to claim 5, characterized in that: The gap between the connecting block (73) and the insertion slot (72) is matched, and the connecting block (73) moves linearly left and right inside the insertion slot (72).

7. The protective hydraulic hinge according to claim 5, characterized in that: The front side of the sheet (76) has at least two mounting holes.

8. The protective hydraulic hinge according to claim 1, characterized in that: The rectangular piston block (63) includes a movable block, and a sealing rubber ring is embedded and fixed inside the outer side of the movable block.

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