Bidirectional hydraulic hinge mandrel

Abstract

The utility model discloses a bidirectional hydraulic hinge mandrel which comprises a main shaft barrel, a cylinder sleeve arranged at the lower end of the main shaft barrel, a piston located in the cylinder sleeve and an oil needle, a first sliding groove and a second sliding groove which are in an inverted V shape are symmetrically formed in the outer wall of the piston, and one end of the first sliding groove is communicated with one end of the second sliding groove. The other end of the first sliding groove communicates with the other end of the second sliding groove, a first steel ball hole and a second steel ball hole are symmetrically formed in the inner wall of the containing groove of the cylinder sleeve, and a first connecting steel ball located in one of the first sliding groove and the second sliding groove is arranged in the first steel ball hole. A second connecting steel ball located in the other one of the first sliding groove and the second sliding groove is arranged in the second steel ball hole. By means of the mode, the connecting steel balls of the two-way hydraulic hinge mandrel can slide in the sliding grooves in the two directions, so that two-way door opening or closing can be achieved, the user experience quality is high, and the high-quality requirement can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a bidirectional hydraulic hinge core shaft. Background Art

[0002] At present, hinges are made of a variety of materials, and the performance of hinges of various materials is different. In order to meet the high-quality requirements of users, many functional hinge cores have appeared on the market. Figure 1 As shown, the multifunctional hinge core shaft disclosed in application number 2011101859305 is equipped with a closing force adjustment mechanism and a closing speed adjustment mechanism. When opening and closing the door, the gap between the speed regulating wick 18 and the speed regulating valve hole (essentially an oil passage hole in the piston 13) is adjusted by adjusting the amount of insertion of the speed regulating wick 18 with a tapered needle into the inner cavity of the piston 13, thereby controlling the flow of hydraulic oil in the pressure oil chamber and the oil storage chamber. Because the speed regulating wick 18 is provided with a tapered needle at the upper end, the gap between the speed regulating wick 18 and the speed regulating valve hole gradually changes during closing (when the piston 13 moves downward, causing the speed regulating wick 18 to gradually rise relative to the piston 13), causing the flow rate from the pressure oil chamber to the oil storage chamber to also change slowly. Only when the door is closed to 5 to 10 degrees does the hydraulic oil flow from the pressure oil chamber to the oil storage chamber through the pressure relief groove, thereby achieving a fast closing speed.

[0003] However, a piston spiral groove is provided on the outer surface of the middle part of the piston 13, which passes through the middle part of the piston 13. The closing speed adjustment mechanism includes a piston column pin 15 provided in the piston spiral groove. Both ends of the piston column pin 15 pass through the piston spiral groove and are exposed outside the piston 13. The end of the piston column pin 15 exposed outside the piston 13 is fixed in a pin fixing hole provided on the upper part of the piston sleeve 14.

[0004] That is to say, the piston 13 of the above patent is raised and lowered by a threaded connection, but can only rise or fall in a single direction, that is, it cannot open or close the door in both directions, cannot meet high quality requirements, and greatly reduces the user experience. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a bidirectional hydraulic hinge core shaft to solve the above technical problems.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides a technical solution: a bidirectional hydraulic hinge core shaft, comprising a main shaft cylinder, a cylinder sleeve arranged at the lower end of the main shaft cylinder, a piston in the cylinder sleeve and an oil needle, the main shaft cylinder is provided with a receiving through hole, the top end of the cylinder sleeve is provided with a receiving groove corresponding to the receiving through hole, the bottom end of the cylinder sleeve is provided with a threaded hole connected with the receiving groove, the piston is arranged in the receiving groove of the cylinder sleeve, the piston is provided with a one-way hole, and the piston is provided with an oil discharge hole connected with the receiving groove, one end of the oil needle is threadedly connected to the threaded hole, and the other end of the oil needle is inserted into the oil discharge hole, wherein the other end of the oil needle comprises a first oil needle body and a first oil needle body connected to the first oil needle body and facing away from the oil needle body A second oil needle body extends from one end of the oil needle, and the second oil needle body is in the shape of a long cone. The first oil needle body is provided with a quick oil drainage structure for quick oil drainage, and is characterized in that the outer wall of the piston is symmetrically provided with a first slide groove and a second slide groove in an inverted V shape, one end of the first slide groove is connected with one end of the second slide groove, and the other end of the first slide groove is connected with the other end of the second slide groove, and the inner wall of the accommodating groove of the cylinder sleeve is symmetrically provided with a first steel ball hole and a second steel ball hole, wherein the first steel ball hole is provided with a first connecting steel ball located in one of the first slide groove and the second slide groove, and the second steel ball hole is provided with a second connecting steel ball located in the other of the first slide groove and the second slide groove.

[0009] Furthermore, a connection between one end of the first chute and one end of the second chute is in an arc shape, and a connection between the other end of the first chute and the other end of the second chute is in an arc shape.

[0010] Furthermore, a first positioning pit is provided at the connection between one end of the first chute and one end of the second chute, and a second positioning pit is provided at the connection between the other end of the first chute and the other end of the second chute.

[0011] Furthermore, a sealing ring is provided between the inner wall of the receiving groove of the cylinder sleeve and the outer wall of the piston.

[0012] Furthermore, the outer diameter of the second oil needle body is gradually reduced from one end thereof close to the first oil needle body to the other end thereof away from the first oil needle body.

[0013] Furthermore, the rapid oil drainage structure is a plurality of deep grooves arranged around the outer wall of the first oil needle body at intervals along the length direction of the first oil needle body.

[0014] Furthermore, the rapid oil discharge structure is an annular groove provided outside the outer wall of the first oil needle body, wherein the outer diameter of the cross section of the first oil needle body of the annular groove is smaller than the outer diameter of the second oil needle body.

[0015] Furthermore, the first oil needle body and the second oil needle body are integrally formed and arranged in a straight line.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a bidirectional hydraulic hinge core shaft with the following beneficial effects: the bidirectional hydraulic hinge core shaft disclosed in the present invention includes a main shaft cylinder, a cylinder sleeve arranged at the lower end of the main shaft cylinder, a piston in the cylinder sleeve, and an oil needle, wherein the outer wall of the piston is symmetrically provided with a first slide groove and a second slide groove in an inverted V shape, one end of the first slide groove is connected to one end of the second slide groove, and the other end of the first slide groove is connected to the other end of the second slide groove, and the inner wall of the receiving groove of the cylinder sleeve is symmetrically provided with a first steel ball hole and a second steel ball hole, wherein the first steel ball hole is provided with a first connecting steel ball located in one of the first slide groove and the second slide groove, and the second steel ball hole is provided with a second connecting steel ball located in the other of the first slide groove and the second slide groove. Through the above manner, the connecting steel balls of the bidirectional hydraulic hinge core shaft disclosed in the present invention can slide in both directions in the slide groove, so that the door can be opened or closed in both directions, and the user experience quality is high, which can meet high quality requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a hinge core shaft on the market;

[0019] Figure 2 This is a structural diagram of the bidirectional hydraulic hinge core shaft of the utility model;

[0020] Figure 3 for Figure 1 Schematic diagram of the structure of the cylinder sleeve of the bidirectional hydraulic hinge core shaft;

[0021] Figure 4 for Figure 1 A first structural diagram of the outer wall of the piston of the bidirectional hydraulic hinge core shaft;

[0022] Figure 5 for Figure 1 A second structural diagram of the outer wall of the piston of the bidirectional hydraulic hinge core shaft;

[0023] Figure 6 for Figure 1 A schematic structural diagram of a first embodiment of an oil needle of a bidirectional hydraulic hinge core shaft;

[0024] Figure 7 for Figure 1Schematic diagram of the structure of the second embodiment of the oil needle of the bidirectional hydraulic hinge core shaft. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figure 2-7 As shown, the utility model discloses a bidirectional hydraulic hinge core shaft, which includes a main shaft cylinder 60, a cylinder sleeve 61 arranged at the lower end of the main shaft cylinder 60, a piston 62 in the cylinder sleeve 61, and an oil needle 63.

[0027] In this embodiment, a receiving through-hole 601 is defined within the main shaft barrel 60. A receiving recess 611 corresponding to the receiving through-hole 601 is defined at the top of the cylinder sleeve 61. A threaded hole 612 communicating with the receiving recess 611 is defined at the bottom of the cylinder sleeve 61. A piston 62 is disposed within the receiving recess 611 of the cylinder sleeve 61. The piston 62 is provided with a one-way hole and an oil drain hole communicating with the receiving recess 611. One end of an oil needle 63 is threadedly connected to the threaded hole 612, while the other end of the oil needle 63 is inserted into the oil drain hole. It should be understood that the cylinder sleeve 61 is connected to the door and rotates with the door. Therefore, when the cylinder sleeve 61 rotates, it drives the piston 62 to rise and fall within the receiving recess 611 of the cylinder sleeve 61. The piston 62 divides the cylinder sleeve 61 into an oil storage chamber 6211 and a pressurized oil chamber 6212 located below the oil storage chamber 6211.

[0028] In this embodiment, the other end of the oil needle 63 includes a first oil needle body 631 and a second oil needle body 632 connected to the first oil needle body 631 and extending toward one end away from the oil needle 63, wherein the first oil needle body 631 is provided with a quick oil drainage structure for quick oil drainage.

[0029] Preferably, the first oil needle body 631 and the second oil needle body 632 are integrally formed and arranged in a straight line. It should be understood that the first oil needle body 631 is arranged near the bottom end of the cylinder sleeve 61, and the second oil needle body 632 is arranged away from the bottom end of the cylinder sleeve 61.

[0030] Furthermore, the second oil needle body 632 is in the shape of an elongated cone, wherein the outer diameter of the second oil needle body 632 gradually decreases from one end close to the first oil needle body 631 to the other end away from the first oil needle body 631 .

[0031] It should be understood that since the other end of the oil needle 63 is inserted into the oil drain hole, when the door is closed, the piston 62 moves downward, causing the oil needle 63 to gradually rise relative to the piston 62 (refer to Figure 2 ), during this process, the oil in the pressurized oil chamber 6212 flows to the oil storage chamber 6211, and in the process of closing the door, the oil needle 63 is gradually inserted into the oil drain hole of the piston 62, and in the process of gradual insertion, the second oil needle body 632 gradually penetrates into the oil drain hole, and in this process, the oil in the pressurized oil chamber 6212 slowly flows to the oil storage chamber 6211, and then to the first oil needle body 631 is inserted into the oil drain hole (when the door is closed to 5 to 10 degrees, the first oil needle body 631 is just inserted into the oil drain hole). During this process, the oil in the pressurized oil chamber 6212 quickly flows to the oil storage chamber 6211 through the quick oil drain structure, so that the door closing action is quickly completed and the door closing effect is good.

[0032] In this embodiment, if Figure 6 As shown, the quick oil discharge structure is a plurality of deep grooves 6311 arranged around the outer wall of the first oil needle body 631 at intervals along the length direction of the first oil needle body 631.

[0033] Further, such as Figure 7 As shown, in other embodiments, the quick oil drainage structure is an annular groove 6312 arranged outside the outer wall of the first oil needle body 631, wherein the outer diameter of the cross section of the first oil needle body 631 of the annular groove 6312 is smaller than the outer diameter of the second oil needle body 632.

[0034] In this embodiment, the outer wall of the piston 62 is symmetrically provided with a first slide groove 621 and a second slide groove 622 in an inverted V shape, wherein one end of the first slide groove 621 is connected to one end of the second slide groove 622, and the other end of the first slide groove 621 is connected to the other end of the second slide groove 622.

[0035] Preferably, a connection between one end of the first slide groove 621 and one end of the second slide groove 622 is in an arc shape, and a connection between the other end of the first slide groove 621 and the other end of the second slide groove 622 is in an arc shape.

[0036] Furthermore, a first steel ball hole and a second steel ball hole are symmetrically provided on the inner wall of the receiving groove 611 of the cylinder sleeve 61. A first connecting steel ball 613 is provided in the first steel ball hole and is located in one of the first chute 621 and the second chute 622. A second connecting steel ball 614 is provided in the second steel ball hole and is located in the other of the first chute 621 and the second chute 622. That is, when the first connecting steel ball 613 is located in the first chute 621, the second connecting steel ball 614 is located in the second chute 622. When the first connecting steel ball 613 is located in the second chute 622, the second connecting steel ball 614 is located in the first chute 621.

[0037] In this embodiment, a first positioning pit 6211 is provided at the connection between one end of the first chute 621 and one end of the second chute 622, and a second positioning pit is provided at the connection between the other end of the first chute 621 and the other end of the second chute 622. It should be understood that when the first connecting steel ball 613 slides into the first positioning pit 6211, the second connecting steel ball 614 also slides into the second positioning pit, causing the first connecting steel ball 613 to temporarily remain in the first positioning pit 6211 and the second connecting steel ball 614 to temporarily remain in the second positioning pit. At this time, the user needs to apply a little force to continue to push the first connecting steel ball 613 and the second connecting steel ball 614 to slide.

[0038] It is worth noting that when the first connecting steel ball 613 stays in the first positioning pit 6211 and the second connecting steel ball 614 stays in the second positioning pit, the user can push the connecting steel balls to continue sliding in the first direction (such as toward the second slide groove 622) and the second direction (such as toward the first slide groove 621) as needed.

[0039] Preferably, a sealing ring 620 is provided between the inner wall of the receiving groove 611 of the cylinder sleeve 61 and the outer wall of the piston 62 .

[0040] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-way hydraulic hinge spindle, comprising a main shaft, a cylinder sleeve arranged at the lower end of the main shaft, a piston in the cylinder sleeve and an oil needle, wherein the main shaft is provided with a receiving through hole, the top of the cylinder sleeve is provided with a receiving groove corresponding to the receiving through hole, the bottom of the cylinder sleeve is provided with a threaded hole connected with the receiving groove, the piston is arranged in the receiving groove of the cylinder sleeve, the piston is provided with a one-way hole, and the piston is provided with an oil discharge hole connected with the receiving groove, one end of the oil needle is threadedly connected to the threaded hole, and the other end of the oil needle is inserted into the oil discharge hole, wherein the other end of the oil needle comprises a first oil needle body and a second oil needle body connected to the first oil needle body and extending toward one end away from the oil needle, the second oil needle body is in the shape of a long strip of cone, and the first oil needle body is provided with a quick oil discharge structure for quick oil discharge, characterized in that The outer wall of the piston is symmetrically provided with a first slide groove and a second slide groove in an inverted V shape, one end of the first slide groove is connected with one end of the second slide groove, and the other end of the first slide groove is connected with the other end of the second slide groove, and the inner wall of the accommodating groove of the cylinder sleeve is symmetrically provided with a first steel ball hole and a second steel ball hole, wherein the first steel ball hole is provided with a first connecting steel ball located in one of the first slide groove and the second slide groove, and the second steel ball hole is provided with a second connecting steel ball located in the other of the first slide groove and the second slide groove.

2. The bidirectional hydraulic hinge mandrel according to claim 1, characterized in that: A connection between one end of the first slide groove and one end of the second slide groove is in an arc shape, and a connection between the other end of the first slide groove and the other end of the second slide groove is in an arc shape.

3. The bidirectional hydraulic hinge mandrel according to claim 2, characterized in that: A first positioning pit is provided at a connection between one end of the first chute and one end of the second chute, and a second positioning pit is provided at a connection between the other end of the first chute and the other end of the second chute.

4. The bidirectional hydraulic hinge mandrel according to claim 1, characterized in that: A sealing ring is arranged between the inner wall of the receiving groove of the cylinder sleeve and the outer wall of the piston.

5. The bidirectional hydraulic hinge mandrel according to claim 3, characterized in that: The outer diameter of the second oil needle body is gradually reduced from one end thereof close to the first oil needle body to the other end thereof far away from the first oil needle body.

6. The bidirectional hydraulic hinge mandrel according to claim 5, characterized in that: The quick oil discharge structure is a plurality of deep grooves arranged around the outer wall of the first oil needle body at intervals along the length direction of the first oil needle body.

7. The bidirectional hydraulic hinge mandrel according to claim 5, characterized in that: The quick oil discharge structure is an annular groove arranged outside the outer wall of the first oil needle body, wherein the outer diameter of the cross section of the first oil needle body of the annular groove is smaller than the outer diameter of the second oil needle body.

8. The bidirectional hydraulic hinge mandrel according to claim 5, characterized in that: The first oil needle body and the second oil needle body are integrally formed and arranged in a straight line.

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