Damping adjusting device for sliding door

Abstract

The utility model relates to a sliding door damping adjusting device which comprises a bottom end sliding rail, a cylindrical oil cavity is formed in one side of the upper end of the bottom end sliding rail, an oil pushing piston is arranged in the cylindrical oil cavity, a through opening groove is formed in the oil pushing piston, one end of the oil pushing piston is provided with a sliding push rod penetrating through the cylindrical oil cavity, and the other end of the sliding push rod is provided with a sliding block. And an adjusting shaft rod is rotationally arranged in the sliding push rod. The utility model relates to the technical field of sliding doors. According to the damping adjusting device for the sliding door, through the arrangement of the first blocking ring and the second blocking ring, in the process that the oil pushing piston makes contact with the second blocking ring and the first blocking ring in sequence, a through opening groove of the oil pushing piston is blocked, so that the volume through which oil can pass is reduced, the pressure needed by oil circulation is increased, and the effect of improving damping is achieved; at the moment, the force required for pushing the door body to move is increased, so that the moving speed of the door body is reduced under the condition of the same force, and the effect of protecting the door frame is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding doors, in particular to a damping adjustment device for sliding doors. Background Art

[0002] The working principle of the sliding door is to open and close by sliding. Compared with traditional sliding doors and revolving doors, the sliding door has more unique advantages.

[0003] It slides open and closed easily, saving space, especially in tight rooms.

[0004] A damper, also known as a damping device, generally includes a cylinder body, a piston and a connecting rod. The piston is slidably connected to the cylinder body and divides the inner part of the cylinder body into a rod chamber and a rodless chamber. Both the rod chamber and the rodless chamber are filled with damping fluid. A long hole flow channel and a compensation chamber are opened in the side wall of the cylinder body. The two ends of the long hole flow channel are respectively connected to the rod chamber and the rodless chamber. The compensation chamber is connected to the rodless chamber and an elastic part and a slip ring are provided in the compensation chamber. The buffering and shock absorption function is achieved by controlling the flow rate of the damping fluid when the piston slides.

[0005] In the prior art, the resistance applied by the damper on the sliding door is mostly fixed and cannot be adjusted in real time. Therefore, when the resistance of the damper is large, a large force is required to open the sliding door, which is easy to cause damage to the motor of an electric sliding door. For an ordinary sliding door, the speed of manual opening will also be greatly reduced. When the damping is small, it is easy to push the sliding door. For an electric sliding door, it is easy to vibrate, causing damage to the motor and the door frame. For an ordinary sliding door, it is also easy to cause collision between the door body and the door frame. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a damping adjustment device for a sliding door so as to solve the technical problems mentioned in the above background technology.

[0007] The above technical objectives of the utility model are achieved through the following technical solutions:

[0008] The camshaft of the embodiment of the present invention is a kind of sliding door damping adjustment device, comprises a bottom slide rail, a cylindrical oil chamber is provided on one side of the upper end of the bottom slide rail, an oil pushing piston is provided inside the cylindrical oil chamber, a through groove is opened inside the oil pushing piston, a sliding push rod is provided at one end of the oil pushing piston, which passes through the cylindrical oil chamber, an adjusting shaft is provided for rotation inside the sliding push rod, a fixed platform is provided inside the cylindrical oil chamber, an outer resistance spring is provided on one side of the fixed platform, an inner resistance spring is provided inside the outer resistance spring, a first resistance ring is provided at one end of the outer resistance spring, a resistance rod is slidably connected to the inside of the first resistance ring, one end of the resistance rod is fixedly connected to the inner resistance spring, a second resistance ring is provided at one end of the resistance rod away from the inner resistance spring, a fixing ring is provided at one end of the sliding push rod, the upper end of the fixing ring is connected to a mounting plate, and a door body is provided at the top of the mounting plate.

[0009] Furthermore, a closing plug is rotatably provided inside the through-mouth groove, and the closing plug is fixedly connected to the adjusting shaft rod, and a hexagonal groove is provided at one end of the adjusting shaft rod.

[0010] Furthermore, a connecting groove is formed at one end of the oil pushing piston away from the sliding push rod, and the connecting groove passes through the outer side wall of the oil pushing piston.

[0011] Furthermore, the fixing platform includes a stabilizing platform, a connecting spring and a mounting platform. The stabilizing platform is fixedly connected to the inner wall of the cylindrical oil chamber, and the mounting platform is connected to the stabilizing platform via the connecting spring.

[0012] Furthermore, the first resistance ring includes a first disk, a disk surface of the first disk is provided with a first oil groove, and an axis of the first disk is provided with a sliding hole matched with the resistance rod.

[0013] Furthermore, the second resistance ring includes a second disk, a disk surface of the second disk is provided with a second oil groove, and a width of the second oil groove is greater than a width of the first oil groove.

[0014] In summary, the utility model includes at least one of the following beneficial technical effects:

[0015] 1. A sliding door damping adjustment device, because a through groove is provided inside the oil push piston, the rod chamber and the rodless chamber inside the cylindrical oil chamber are connected to each other, and then when the door body is pushed to move, the oil inside the rod chamber and the rodless chamber can be replaced with each other, so that the oil push piston can be moved, and then the resistance of the oil push piston is achieved through the resistance of the oil;

[0016] 2. This kind of sliding door damping adjustment device, through the arrangement of the first block ring and the second block ring, blocks the opening groove of the oil push piston in the process that the oil push piston contacts the second block ring and the first block ring in sequence, thereby reducing the volume that the oil can pass through and increasing the pressure required for the oil to circulate, so as to achieve the effect of improving damping. At this time, the force required to push the door body to move is increased, so as to reduce the speed of the door body moving under the same force, thereby achieving the effect of protecting the door frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The utility model is a structural schematic diagram of a damping adjustment device for a sliding door.

[0019] Figure 2 The utility model is a schematic structural diagram of a bottom end slide rail and a cylindrical oil chamber of a damping adjustment device for a sliding door.

[0020] Figure 3 The utility model is a schematic diagram of the internal structure of a cylindrical oil chamber of a damping adjustment device for a sliding door.

[0021] Figure 4 The utility model is a schematic structural diagram of an oil pushing piston of a damping adjustment device for a sliding door.

[0022] Figure 5 It is a structural schematic diagram of a first resistance ring and a second resistance ring of a damping adjustment device for a sliding door of the utility model.

[0023] Figure 6 The utility model is a schematic diagram of the shielding plane structure of an oil pushing piston, a first block ring and a second block ring of a damping adjustment device for a sliding door.

[0024] In the figure, 1. bottom slide rail; 2. cylindrical oil chamber; 3. oil push piston; 4. through groove; 5. sliding push rod; 6. adjusting shaft rod; 7. fixed platform; 71. stabilizing platform; 72. connecting spring; 73. mounting platform; 8. external resistance spring; 9. internal resistance spring; 10. first resistance ring; 101. first disc; 102. first through oil groove; 103. sliding hole; 11. resistance rod; 12. second resistance ring; 121. second disc; 122. second through oil groove; 13. fixed ring; 14. mounting plate; 15. door body; 16. closing plug; 17. hexagonal groove; 18. connecting groove. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] Example:

[0027] Reference Figure 1-Figure 6 The utility model discloses a sliding door damping adjustment device, comprising a bottom end slide rail 1, a cylindrical oil chamber 2 is arranged on one side of the upper end of the bottom end slide rail 1, an oil pushing piston 3 is arranged inside the cylindrical oil chamber 2, a through groove 4 is opened inside the oil pushing piston 3, a sliding push rod 5 penetrating the cylindrical oil chamber 2 is arranged at one end of the oil pushing piston 3, an adjusting shaft rod 6 is rotatably arranged inside the sliding push rod 5, a fixed platform 7 is arranged inside the cylindrical oil chamber 2, and an external resistance spring 8 is arranged on one side of the fixed platform 7, An inner resistance spring 9 is arranged inside the outer resistance spring 8, a first resistance ring 10 is arranged at one end of the outer resistance spring 8, a resistance rod 11 is slidably connected inside the first resistance ring 10, one end of the resistance rod 11 is fixedly connected to the inner resistance spring 9, a second resistance ring 12 is arranged at the end of the resistance rod 11 away from the inner resistance spring 9, a fixing ring 13 is arranged at one end of the sliding push rod 5, the upper end of the fixing ring 13 is connected to a mounting plate 14, and a door body 15 is arranged at the top of the mounting plate 14.

[0028] In this embodiment, the cylindrical oil chamber 2, the oil push piston 3 and the sliding push rod 5 together form an oil pressure piston, and the door body 15 is installed above the sliding push rod 5 through the fixing ring 13 and the mounting plate 14, and the end of the mounting plate 14 away from the fixing ring 13 is always in contact with the outer surface of the cylindrical oil chamber 2;

[0029] Since the oil-pushing piston 3 is provided with a through groove 4, the rod chamber and the rodless chamber in the cylindrical oil chamber 2 are connected to each other, and when the door body 15 is pushed to move, the oil in the rod chamber and the rodless chamber can be replaced with each other, so that the oil-pushing piston 3 can be moved, and the resistance of the oil can be applied to the oil-pushing piston 3.

[0030] When the door body 15 is opened until it contacts the second resistance ring 12, the oil push piston 3 and the second resistance ring 12 contact each other, and the outer wall of the second resistance ring 12 contacts the inner wall of the cylindrical oil chamber 2, and then the second resistance ring 12 blocks the opening groove 4 of the oil push piston 3, so that the volume of oil that can pass through is reduced. Figure 6 , so that the pressure required for the oil to circulate is increased to achieve the effect of improving damping. At this time, the force required to push the door body 15 to move is increased to reduce the speed of the door body 15 moving under the same force, thereby achieving the effect of protecting the door frame;

[0031] After the oil pushing piston 3 contacts the second resistance ring 12 and the door body 15 continues to move, the second resistance ring 12 compresses the inner resistance spring 9 under the push of the movement of the door body 15 and contacts the first resistance ring 10. At this time, the first resistance ring 10 blocks the second resistance ring 12, thereby increasing the area blocked by the through groove 4 of the oil pushing piston 3. At this time, the gap through which the oil can pass becomes smaller again. Figure 6 When the door body 15 moves, the pressure required for the oil flow is further increased, and the external resistance spring 8 is compressed to achieve the purpose of increasing the damping again, and the moving speed of the door body 15 is reduced again to achieve the effect of protecting the door frame;

[0032] Similarly, when closing the door 15, Figure 3 The outer resistance spring 8 and the inner resistance spring 9 extend together to push the door body 15 to move. After the outer resistance spring 8 is fully extended, the thrust exerted by the outer resistance spring 8 and the inner resistance spring 9 on the oil pushing piston 3 is reduced, so the door body 15 will reduce its movement speed when closing. When the inner resistance spring is fully extended, the closing speed of the door body 15 is reduced again, so that the initial closing speed of the door body 15 is increased in the process from the fully open state to the fully closed state of the door frame, thereby achieving the purpose of improving the closing efficiency of the door frame.

[0033] In a further preferred embodiment of the present invention, Figure 1-6 As shown, a closing plug 16 is rotatably provided inside the through-mouth groove 4 , and the closing plug 16 is fixedly connected to the adjusting shaft rod 6 , and a hexagonal groove 17 is provided at one end of the adjusting shaft rod 6 .

[0034] In this embodiment, when in use, the closing plug 16 is changed in position at the through slot by rotating the adjusting shaft 6, so as to block the position of the through slot, reduce the gap through which oil can pass, and increase the pressure required for the oil to pass, thereby achieving the effect of adjusting the damping.

[0035] In a further preferred embodiment of the present invention, Figure 1-6 As shown, a connecting groove 18 is formed at one end of the oil pushing piston 3 away from the sliding push rod 5 , and the connecting groove 18 passes through the outer side wall of the oil pushing piston 3 .

[0036] In this embodiment, by providing the connecting groove 18 , the oil can be introduced into the outer wall of the oil pushing piston 3 during the movement of the door frame, so as to achieve the effect of improving the smoothness of the movement of the oil pushing piston 3 inside the cylindrical oil chamber 2 .

[0037] In a further preferred embodiment of the present invention, Figure 1-6As shown, the fixing platform 7 includes a stabilizing platform 71 , a connecting spring 72 and a mounting platform 73 . The stabilizing platform 71 is fixedly connected to the inner wall of the cylindrical oil chamber 2 , and the mounting platform 73 is connected to the stabilizing platform 71 through the connecting spring 72 .

[0038] In this embodiment, the fixing platform 7 is composed of a stabilizing platform 71, a connecting spring 72 and a mounting platform 73. When the door body 15 is about to be fully opened, the movement of the door body 15 is buffered to achieve the effect of improving the safety of the door frame.

[0039] In a further preferred embodiment of the present invention, Figure 1-6 As shown, the first resistance ring 10 includes a first disk 101 , a first oil groove 102 is formed on the disk surface of the first disk 101 , and a sliding hole 103 matched with the resistance rod 11 is formed at the axis of the first disk 101 .

[0040] In this embodiment, the outer wall of the first disc 101 is in contact with the inner wall of the cylindrical oil chamber 2. The provision of the first oil groove 102 facilitates the movement of oil from one side of the first disc 101 to the other side, so as to achieve the effect of enabling the first disc 101 to move inside the cylindrical oil chamber 2.

[0041] In a further preferred embodiment of the present invention, Figure 1-6 As shown, the second resistance ring 12 includes a second disk 121 , and a second oil groove 122 is formed on a disk surface of the second disk 121 . The width of the second oil groove 122 is greater than the width of the first oil groove 102 .

[0042] In this embodiment, the outer wall of the second disc 121 is in contact with the inner wall of the cylindrical oil chamber 2. The second oil groove 122 is provided so that the oil moves from one side of the second disc 121 to the other side. Since the width of the second oil groove 122 is greater than that of the first oil groove 102, when the first disc 101 and the second disc 121 are in contact with each other, the first disc 101 will shield the second disc 121. Figure 6 , thereby achieving the purpose of reducing the oil passing efficiency, so as to improve the damping effect.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A sliding door damping adjustment device, characterized in that: The invention comprises a bottom end slide rail (1), a cylindrical oil chamber (2) is arranged on one side of the upper end of the bottom end slide rail (1), an oil push piston (3) is arranged inside the cylindrical oil chamber (2), a through groove (4) is opened inside the oil push piston (3), a sliding push rod (5) penetrating the cylindrical oil chamber (2) is arranged at one end of the oil push piston (3), an adjusting shaft (6) is rotatably arranged inside the sliding push rod (5), a fixing platform (7) is arranged inside the cylindrical oil chamber (2), an external resistance spring (8) is arranged on one side of the fixing platform (7), and the external resistance spring (8) is An inner resistance spring (9) is arranged inside, a first resistance ring (10) is arranged at one end of the outer resistance spring (8), a resistance rod (11) is slidably connected inside the first resistance ring (10), one end of the resistance rod (11) is fixedly connected to the inner resistance spring (9), a second resistance ring (12) is arranged at one end of the resistance rod (11) away from the inner resistance spring (9), a fixing ring (13) is arranged at one end of the sliding push rod (5), the upper end of the fixing ring (13) is connected to a mounting plate (14), and a door body (15) is arranged at the top of the mounting plate (14).

2. A sliding door damping adjustment device according to claim 1, characterized in that: A closing plug (16) is rotatably arranged inside the through-mouth groove (4), and the closing plug (16) is fixedly connected to the adjusting shaft rod (6). A hexagonal groove (17) is formed at one end of the adjusting shaft rod (6).

3. A sliding door damping adjustment device according to claim 2, characterized in that: A communication groove (18) is formed at one end of the oil pushing piston (3) away from the sliding push rod (5), and the communication groove (18) passes through the outer wall of the oil pushing piston (3).

4. A sliding door damping adjustment device according to claim 3, characterized in that: The fixing platform (7) comprises a stabilizing platform (71), a connecting spring (72) and a mounting platform (73); the stabilizing platform (71) is fixedly connected to the inner wall of the cylindrical oil chamber (2); and the mounting platform (73) is connected to the stabilizing platform (71) via the connecting spring (72).

5. The sliding door damping adjustment device according to claim 4, characterized in that: The first resistance ring (10) comprises a first disk (101), a disk surface of the first disk (101) is provided with a first oil groove (102), and a sliding hole (103) matching with the resistance rod (11) is provided at the axis of the first disk (101).

6. A sliding door damping adjustment device according to claim 5, characterized in that: The second baffle ring (12) comprises a second disc (121), a disc surface of the second disc (121) is provided with a second oil groove (122), and a groove width of the second oil groove (122) is greater than a groove width of the first oil groove (102).

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