Hydraulic pipe structure of hidden type three-dimensional hydraulic hinge assembly

Abstract

The utility model discloses a structure of a hidden type three-dimensional hydraulic hinge assembly hydraulic pipe, which comprises a sleeve, a cylinder sleeve, a piston, a main mandrel, a compression spring and an end socket, the cylinder sleeve is sleeved at one end of the sleeve, one end of the cylinder sleeve extends out of the end portion of the sleeve, the piston is sleeved in the cylinder sleeve, one end of the main mandrel is connected with the piston, and the other end of the main mandrel extends out of the sleeve and then is matched with the end socket. The main mandrel is sleeved with the compression spring, one end of the compression spring abuts against the piston, the main mandrel is connected with the piston through the connecting pin shaft, and a first oil cavity and a second oil cavity are formed in the two ends of the piston respectively. The main core shaft and the piston are directly connected through the connecting pin shaft, the connecting structure of the main core shaft and the piston is greatly simplified, existing spline connection is replaced with the connecting pin shaft, the machining difficulty is greatly reduced, and the machine ringing phenomenon is avoided in the using process; meanwhile, the space occupied by a connecting structure of the cylinder sleeve, the piston and the main mandrel is reduced, so that the overall size is reduced, and the overall production cost is reduced; by adopting the structure, the effects of lightly opening the door and powerfully closing the door are achieved.

Description

Technical Field

[0001] The utility model belongs to an important component of a hydraulic hinge, in particular to a structure of a hydraulic pipe of a hidden three-dimensional hydraulic hinge assembly. Background Art

[0002] At present, ordinary hinges are widely used as hinges for building doors and windows. Existing doors and windows are mainly opened and closed in two ways. The first is to use traditional folding hinges, but this hinge only has a hinge function. When users close the door casually, they usually need to push one side of the door toward the door frame with force. This can easily lead to excessive force causing the door and door frame to collide loudly or produce a huge impact between the door and door frame, which will reduce the service life of the door. The second is the hydraulic hinge. Through the hydraulic action, the closing speed is controlled by the hydraulic buffer to meet the requirements of humanized use. For example, the application number is 202110027540.9, which discloses a hydraulic assembly and a hydraulic hinge. In this structure, the hydraulic sleeve, hydraulic rod and drive shaft and other structures are relatively large in volume, the overall matching connection structure is relatively complex, and the overall volume is relatively large. There are also some existing products on the market that use spline grooves to connect the drive shaft and the piston, but the spline groove connection is difficult to manufacture, and the machine makes a noise, which increases the manufacturing cost. Utility Model Content

[0003] The purpose of the present utility model is to provide a structure of a hydraulic pipe of a hidden three-dimensional hydraulic hinge assembly that can solve at least one of the above problems.

[0004] According to one aspect of the utility model, a structure of a hydraulic pipe of a hidden three-dimensional hydraulic hinge assembly is provided, including a sleeve, a cylinder sleeve, a piston, a main core shaft, a compression spring and a head. The cylinder sleeve is sleeved on one end of the sleeve, and one end of the cylinder sleeve extends out of the end of the sleeve. The piston is sleeved in the cylinder sleeve, one end of the main core shaft is connected to the piston, and the other end extends out of the sleeve and cooperates with the head. The compression spring is sleeved on the main core shaft, and one end of the compression spring abuts against the piston. The main core shaft is connected to the piston through a connecting pin shaft, and the two ends of the piston are respectively the first oil chamber and the second oil chamber.

[0005] The beneficial effects of the present invention are as follows: the main core shaft and the piston are directly connected by a connecting pin shaft, which greatly simplifies the connection structure between the two. The connecting pin shaft replaces the existing spline connection, which greatly reduces the processing difficulty and avoids the phenomenon of machine noise during use. At the same time, the space occupied by the connection structure of the cylinder sleeve, the piston and the main core shaft is reduced, which is conducive to reducing the overall volume and reducing the overall production cost. By adopting this structure, the effect of opening the door lightly and closing the door forcefully is achieved.

[0006] In some embodiments, the structure of the hydraulic pipe of the concealed three-dimensional hydraulic hinge assembly also includes a mounting shaft. The piston is provided with a spiral groove and a vertical groove. The vertical groove is arranged along the length of the main core shaft. The mounting shaft is fixed to the cylinder sleeve after passing through the spiral groove at both ends. A connecting pin is fixed to one end of the main core shaft and engages with the vertical groove. Thus, the mounting shaft is fixed to the cylinder sleeve, so that under the guidance of the spiral groove, the piston can rotate accordingly along the spiral groove during movement, achieving the effect of gently opening the door and forcefully closing the door.

[0007] In some embodiments, there are two spiral grooves, evenly distributed on both sides of the piston, and a horizontal groove is provided at the top of the spiral groove, which is connected to the spiral groove, thereby meeting the door opening angle requirement.

[0008] In some embodiments, a roller sleeve is provided on the mounting shaft, through which the mounting shaft contacts the spiral groove. The roller sleeve facilitates contact between the spiral groove of the piston and the mounting shaft, allowing the spiral groove to better guide the piston and avoid direct friction between the mounting shaft and the sidewalls of the spiral groove, thereby facilitating rotation of the piston and achieving a smoother door opening effect.

[0009] In some embodiments, a limiting plate is provided on the main core shaft, and the other end of the compression spring abuts against one side of the limiting plate. Thus, the limiting plate can facilitate the limiting of the compression spring.

[0010] In some embodiments, the hydraulic tube structure of the concealed three-dimensional hydraulic hinge assembly also includes a flat bearing, which is mounted on the main core shaft and abuts the other side of the limit plate. This flat bearing can better support the load of the compression spring, facilitate the installation of compression springs with larger outer diameters and greater compression levels, and achieve a more powerful door closing effect.

[0011] In some embodiments, the structure of the hydraulic pipe of the concealed three-dimensional hydraulic hinge assembly further includes a first needle roller bearing and a needle roller bearing seat. The needle roller bearing seat is sleeved on the main spindle, and the plane bearing is located between the needle roller bearing seat and the limit plate. The first needle roller bearing is sleeved on the main spindle and cooperates with the needle roller bearing seat, and the needle roller bearing seat is located within the sleeve. Thus, the provision of the first needle roller bearing satisfies the corresponding assembly requirements and facilitates the rotation of the main spindle.

[0012] In some embodiments, the hydraulic pipe structure of the concealed three-dimensional hydraulic hinge assembly also includes an oil needle and a screw adjustment assembly. A one-way valve seat is provided on the piston. One end of the oil needle extends into the oil hole of the one-way valve seat, and the other end is connected to the screw adjustment assembly, which extends through the cylinder sleeve. This screw adjustment assembly facilitates adjustment of the depth of the oil needle's penetration into the oil hole, facilitating oil flow control.

[0013] In some embodiments, the structure of the hydraulic pipe of the concealed three-dimensional hydraulic hinge assembly further includes a second needle roller bearing and an outer sleeve. The second needle roller bearing is mounted on the cylinder sleeve and located outside the sleeve, and the outer sleeve is mounted outside the sleeve. Thus, the second needle roller bearing facilitates connection with the outer hinge portion.

[0014] In some embodiments, the screw adjustment assembly includes an adjustment screw and an adjustment gear. The bottom end of the adjustment screw extends into the cylinder sleeve and connects to the oil needle. The adjustment gear is fixed to the top end of the adjustment screw. Thus, the adjustment screw can be easily raised and lowered by adjusting the adjustment gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly of the utility model.

[0016] Figure 2 It is a schematic cross-sectional view of the structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly of the utility model.

[0017] Figure 3 It is a structural schematic diagram of the internal structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly of the utility model.

[0018] Figure 4 yes Figure 1 Schematic diagram of the explosion structure.

[0019] Figure 5 This is a reference schematic diagram of the usage status of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly of the utility model. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Reference Figures 1 to 5 The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly includes a sleeve 1, a cylinder sleeve 2, a piston 3, a main core shaft 4, a compression spring 5 and a head 6. The cylinder sleeve 2 is sleeved on one end of the sleeve 1, and one end of the cylinder sleeve 2 extends out of the end of the sleeve 1. The piston 3 is sleeved in the cylinder sleeve 2. One end of the main core shaft 4 is connected to the piston 3, and the other end extends out of the sleeve 1 and cooperates with the head 6. The compression spring 5 is sleeved on the main core shaft 4, and one end of the compression spring 5 abuts against the piston 3. The main core shaft 4 is connected to the piston 3 through a connecting pin 7. The two ends of the piston 3 are respectively the first oil chamber 10 and the second oil chamber 20.

[0022] The hydraulic pipe of this concealed three-dimensional hydraulic hinge assembly serves as the hydraulic portion of the hydraulic hinge. Once installed on the hinge, it can be connected to the door leaf. When an external force acts on the door leaf, the hinge rotates, thereby driving the main shaft 4 to rotate. Because the piston 3 is connected via a connecting pin 7, the main shaft 4 drives the piston to rotate. As the piston rotates, it can move relative to the main shaft 4, further compressing the compression spring 5 or causing the compression spring 5 to rebound. As the piston moves, hydraulic oil flows from the first oil chamber 10 to the second oil chamber 20, or vice versa.

[0023] The structure of the hydraulic pipe of the concealed three-dimensional hydraulic hinge assembly of the present invention also includes a mounting shaft 8. The piston 3 is provided with a spiral groove 31 and a vertical groove 32. The vertical groove 32 is arranged along the length of the main core shaft 4. The two ends of the mounting shaft 8 pass through the spiral groove 31 and are fixed to the cylinder sleeve 2. The connecting pin 7 is fixed to one end of the main core shaft 4 and cooperates with the vertical groove 32. Among them, the spiral coefficient of the spiral groove 31 is smaller than the spiral coefficient of the spiral groove in the piston of the conventional hydraulic hinge. The spiral groove 31 with a spiral coefficient can better achieve the effect of opening the door lightly and closing the door forcefully.

[0024] There are two spiral grooves 31 evenly distributed on both sides of the piston 3 . A horizontal groove 33 is provided at the top of the spiral groove 31 , and the horizontal groove 33 is connected to the spiral groove 31 .

[0025] When the door leaf is opening or closing, the main core shaft 4 drives the piston 3 to rotate. Since the mounting shaft 8 is fixed on the cylinder sleeve 2, when the piston 3 rotates, under the action of the spiral groove 31 and the mounting shaft 8, the spiral groove 31 rotates relative to the mounting shaft 8 and moves along the spiral groove 31, that is, the piston 3 moves toward the compression spring 5 or away from the compression spring 5. Through the action of the hydraulic oil and the compression spring, the rotation speed of the piston is slowed down, and the rotation speed of the main core shaft 4 is slowed down, achieving the effect of light door closing; when closing the door, under the action of the hydraulic pressure, the door is closed forcefully.

[0026] By providing the horizontal groove 33, when the door leaf is fully opened, the mounting shaft 8 is located in the horizontal groove 33, which plays a role in positioning the piston and thus plays a role in positioning the door opening.

[0027] The mounting shaft 8 is sleeved with a roller sleeve 9, which contacts the spiral groove 31 through the roller sleeve 9. Therefore, when the piston 3 rotates, both sides of the spiral groove 31 contact the roller sleeve 9, which reduces the friction between the spiral groove 31 and the mounting shaft 8 and facilitates the rotation of the piston 3.

[0028] A limit plate 41 is formed on the main core shaft 4 , and the other end of the compression spring 5 abuts against one side of the limit plate 41 .

[0029] The hydraulic pipe structure of the concealed three-dimensional hydraulic hinge assembly also includes a flat bearing 30, which is mounted on the main core shaft 4 and abuts the other side of the limit plate 41. The flat bearing 30 provides load-bearing support for the compression spring 5, ensuring the assembly force of the compression spring 5, allowing the compression spring 5 to act as a buffer when opening and closing the door.

[0030] The structure of the hydraulic pipe of the concealed three-dimensional hydraulic hinge assembly of the present invention also includes a first needle roller bearing 40 and a needle roller bearing seat 50. The needle roller bearing seat 50 is sleeved on the main core shaft 4. The plane bearing 30 is located between the needle roller bearing seat 50 and the limit plate 41. The first needle roller bearing 40 is sleeved on the main core shaft 4 and cooperates with the needle roller bearing seat 50. The needle roller bearing seat 50 is located in the sleeve 1. The first needle roller bearing 40 can reduce the friction force on the main core shaft 4 during rotation.

[0031] The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly also includes an oil needle 60 and a screw adjustment assembly 70. A one-way valve seat 80 is provided on the piston 3. One end of the oil needle extends into the oil hole of the one-way valve seat 80, and the other end is connected to the screw adjustment assembly 70. The screw adjustment assembly 70 extends out after passing through the cylinder sleeve 2.

[0032] The screw adjustment assembly 70 includes an adjusting screw 701 and an adjusting gear 702. The bottom end of the adjusting screw 701 extends into the cylinder liner 2 and connects to the oil needle 60, while the adjusting gear 702 is fixed to the top end of the adjusting screw 701. In actual use, an external gear that mates with the adjusting gear 702 is mounted on the hinge. During adjustment, an external force acting on the external gear can drive the adjusting gear 702 to rotate, thereby driving the adjusting screw to rotate, causing the adjusting screw 701 to move relative to the cylinder liner 2, driving the oil needle 60 to move closer to or away from the oil hole of the one-way valve seat 80, thereby adjusting the flow rate of hydraulic oil in the oil chambers on both sides.

[0033] The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly of the present invention also includes a second needle roller bearing 90 and an outer sleeve 100. The second needle roller bearing 90 is sleeved on the cylinder sleeve 2 and is located on the outside of the sleeve 1. The outer sleeve 100 is sleeved on the outside of the sleeve 1.

[0034] The second needle bearing 90 facilitates the rotation of the external structure while keeping the cylinder sleeve from rotating; the outer sleeve 100 facilitates the corresponding connection of the hinge.

[0035] The above are only preferred embodiments of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly is characterized by: The invention comprises a sleeve (1), a cylinder sleeve (2), a piston (3), a main core shaft (4), a compression spring (5) and a head (6); the cylinder sleeve (2) is sleeved on one end of the sleeve (1); one end of the cylinder sleeve (2) extends out of the end of the sleeve (1); the piston (3) is sleeved in the cylinder sleeve (2); one end of the main core shaft (4) is connected to the piston (3); the other end extends out of the sleeve (1) and cooperates with the head (6); the compression spring (5) is sleeved on the main core shaft (4); one end of the compression spring (5) abuts against the piston (3); the main core shaft (4) is connected to the piston (3) through a connecting pin (7); and the two ends of the piston (3) are respectively a first oil chamber (10) and a second oil chamber (20).

2. The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly according to claim 1 is characterized in that: The invention also includes a mounting shaft (8), wherein the piston (3) is provided with a spiral groove (31) and a vertical groove (32), wherein the vertical groove (32) is arranged along the length direction of the main core shaft (4), and the two ends of the mounting shaft (8) pass through the spiral groove (31) and are fixed to the cylinder sleeve (2), and the connecting pin shaft (7) is fixed to one end of the main core shaft (4) and matches with the vertical groove (32).

3. The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly according to claim 2 is characterized in that: There are two spiral grooves (31) evenly distributed on both sides of the piston (3). A horizontal groove (33) is provided at the top of the spiral groove (31), and the horizontal groove (33) is connected to the spiral groove (31).

4. The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly according to claim 3 is characterized in that: A rolling sleeve (9) is sleeved on the installation shaft (8), and the installation shaft (8) is in contact with the spiral groove (31) through the rolling sleeve (9).

5. The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly according to any one of claims 1 to 4, characterized in that: A limiting plate (41) is provided on the main core shaft (4), and the other end of the compression spring (5) abuts against one side of the limiting plate (41).

6. The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly according to claim 5 is characterized in that: It also includes a plane bearing (30), which is sleeved on the main core shaft (4) and abuts against the other side of the limiting plate (41).

7. The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly according to claim 6 is characterized in that: The invention also includes a first needle roller bearing (40) and a needle roller bearing seat (50), wherein the needle roller bearing seat (50) is sleeved on the main core shaft (4), and the plane bearing (30) is located between the needle roller bearing seat (50) and the limit plate (41). The first needle roller bearing (40) is sleeved on the main core shaft (4) and matched with the needle roller bearing seat (50), and the needle roller bearing seat (50) is located in the sleeve (1).

8. The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly according to claim 1 is characterized in that: It also includes an oil needle (60) and a screw adjustment assembly (70). A one-way valve seat (80) is provided on the piston (3). One end of the oil needle extends into the oil hole of the one-way valve seat (80), and the other end is connected to the screw adjustment assembly (70). The screw adjustment assembly (70) extends after passing through the cylinder sleeve (2).

9. The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly according to claim 7, characterized in that: It also includes a second needle roller bearing (90) and an outer sleeve (100), wherein the second needle roller bearing (90) is sleeved on the cylinder sleeve (2) and located outside the sleeve (1), and the outer sleeve (100) is sleeved outside the sleeve (1).

10. The structure of the hydraulic pipe of the hidden three-dimensional hydraulic hinge assembly according to claim 8, characterized in that: The screw adjustment assembly (70) comprises an adjusting screw (701) and an adjusting gear (702). The bottom end of the adjusting screw (701) extends into the cylinder sleeve (2) and is connected to the oil needle (60). The adjusting gear (702) is fixed to the top end of the adjusting screw (701).

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