CN210087077U

CN210087077U - Hydraulic door leaf hinge

Info

Publication number: CN210087077U
Application number: CN201920460389.6U
Authority: CN
Inventors: 赖明亮; 张飞飞; 张静; 李稷
Original assignee: Ningbo Pentagon Damper Corp
Current assignee: Ningbo Pentagon Damper Corp
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2020-02-18
Anticipated expiration: 2029-04-08

Abstract

The utility model belongs to the technical field of the articulated mounting technique and specifically relates to a hydraulic pressure door leaf hinge. This hydraulic pressure door leaf hinge includes: the door comprises an inverted U-shaped door leaf frame, a door leaf, an upper bolt and a floor spring, wherein the upper bolt and the floor spring are used for connecting the door leaf and the door leaf frame in a hinged mode; the floor spring is fixed in the mounting groove through a first connecting and fixing plate and a second connecting and fixing plate which form an angle of 90 degrees, and the fixing mode is simple and firm; the floor spring is matched with the upper bolt to realize the convenient disassembly and assembly of the door leaf.

Description

Hydraulic door leaf hinge

Technical Field

The utility model belongs to the technical field of the articulated mounting technique and specifically relates to a hydraulic pressure door leaf hinge.

Background

The conventional floor spring needs to dig a pit at the bottom surface firstly during installation, the floor spring is buried in the pit, the speed regulation and the maintenance are inconvenient, the function is easy to lose efficacy, the door closing speed is high from 90 degrees to 35 degrees during automatic door closing, the damage is easy to cause, and certain potential safety hazards exist; the installation is inconvenient, the cost is high, and the wide application can not be obtained.

There are also no digging pit floor spring, but the structure adopted is the single roller type structure, and this kind of structure has following several defects: 1: the positioning force of 0 degree and 90 degree is too small, and the defect can cause that the wind resistance of the door leaf is small when the door leaf is at 0 degree and 90 degree, and the use occasion of the product is directly influenced. The ratio of the resilience force of the spring to the rotating force is too small, the defect can cause the performance requirements of the product on the spring, the cam and the roller to be extremely high, and the service life of the product is directly influenced, so the structure can only be used for designing the floor spring with the force of No. 2.

The used wooden door shafts all adopt rocker arm type structures. This structure has several disadvantages: 1: the whole top shaft is large in size and inconvenient to install. 2: the hole position of the positioning sleeve matched with the axis is difficult to find.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hydraulic door leaf hinge adopting a single-opening mode, which has convenient installation groove processing; the floor spring adopts a 90-degree right-angle fixing mode, so that the fixing is firm; the floor spring is matched with the upper bolt for use, so that the door leaf is simple and convenient to install.

For reaching the above advantage, the utility model provides a hydraulic pressure door leaf hinge, include: the door comprises an inverted U-shaped door leaf frame, a door leaf, an upper bolt and a floor spring, wherein the upper bolt and the floor spring are used for enabling the door leaf to be hinged with the door leaf frame; the floor spring is fixed in the mounting groove through a first connecting and fixing plate and a second connecting and fixing plate which form an angle of 90 degrees.

In an embodiment of the present invention, the mounting groove is opened at a side surface close to the door frame side.

In an embodiment of the present invention, the door leaf frame is provided with a positioning groove for accommodating the door leaf and enabling the door leaf to be opened and closed smoothly at one side.

In an embodiment of the present invention, the first connecting and fixing plate is used for connecting and fixing the floor spring and the door leaf on the same-direction side; the second connecting and fixing plate is used for connecting and fixing the floor spring and the bottom surface of the door leaf in the same direction.

In an embodiment of the present invention, the floor spring includes a base portion and a main portion, the base portion is fixedly connected to the ground, and the main portion includes: the piston comprises a shell, a piston accommodated in the shell and a cam rotating shaft penetrating through the piston and having an axis perpendicular to the central axis of the piston.

In an embodiment of the present invention, the housing is provided with a piston cavity for the piston to move longitudinally and a cam shaft cavity for rotatably connecting the cam shaft; the left side and the right side of the piston cavity are respectively sealed through a left side cover and a right side cover; the upper portion and the middle lower portion of the cam rotating shaft are connected with the shell through bearings respectively, and sealing rings are arranged between the cam rotating shaft and the middle lower portion connecting bearing and between the cam rotating shaft and the shell.

In an embodiment of the present invention, the piston is provided with a pair of rollers symmetrical along an axis, and the side of the cam shaft is provided with a plurality of positioning recesses capable of accommodating the rollers.

In an embodiment of the present invention, a first pressure regulating port and a second pressure regulating port for regulating the pressure in the piston chamber to control the door leaf closing speed are provided on the side surface of the housing, and the first pressure regulating port and the second pressure regulating port are respectively provided with a long oil path and a short oil path for communicating with the piston chamber.

In one embodiment of the present invention, the base part comprises a base, a top explosion screw and a connecting bolt, wherein the top explosion screw and the connecting bolt connect and fix the base with the ground; the base is provided with a bolt connecting hole and a fixing hole with a positioning edge, and the lower end of the cam rotating shaft is arranged in the fixing hole.

In an embodiment of the present invention, the upper plug is located between the door leaf frame and the upper surface of the door leaf, the upper plug includes an upper shaft sleeve, a lower shaft sleeve, and a shaft center accommodated in the lower shaft sleeve, and an elastic member for driving the shaft center portion to be pushed into the upper shaft sleeve is arranged between the shaft center and the lower shaft sleeve;

the upper shaft sleeve is fixedly connected with the door leaf frame, and the lower shaft sleeve is fixedly connected with the door leaf; the lower shaft sleeve is provided with a positioning screw hole for limiting the shaft center to extend or retract, and the lower end of the shaft center is fixed with an inner hexagonal set screw matched with the positioning screw hole.

The utility model discloses in, the door leaf is provided with the mounting groove that is used for installing the floor spring in the side that is close to the bottom of door leaf frame side, and the door leaf frame is provided with the constant head tank that is used for holding the door leaf, and the restriction door leaf is opened towards another direction, need not to set up the mounting groove at the bottom intermediate position of door leaf, and the mounting groove is seted up conveniently.

The utility model discloses in, in the ground spring is fixed in the mounting groove through being 90 first connection fixed plate and second connection fixed plate between, fixed mode is simple and firm.

The utility model discloses in, can adjust the door leaf and close first pressure regulating mouth and the second pressure regulating mouth of closing speed and set up in the casing side, it is convenient to adjust.

In the utility model, the axle center is limited at the contracted position, the lower end of the cam rotating shaft is inserted into the fixing hole of the base after the main body part of the floor spring and the door leaf are fixed, then the shaft hole of the lower shaft sleeve of the upper plug pin corresponds to the shaft hole of the upper shaft sleeve, the inner hexagonal set screw of the axle center is loosened to push the axle center part into the upper shaft sleeve, the inner hexagonal set screw of the axle center corresponds to the extended positioning screw hole at the moment, and the installation is completed by the matching of the inner hexagonal set screw and the extended positioning screw hole; when the door leaf is disassembled, the door leaf can be disassembled by matching the inner hexagonal set screw and the contracted positioning screw hole through the compression elastic piece. The door leaf is convenient to install and detach.

Drawings

Fig. 1 is a schematic structural view of a hydraulic door leaf hinge according to a first embodiment of the present invention.

Fig. 2 shows an exploded view of the hydraulic door leaf hinge of fig. 1.

Fig. 3 shows an exploded view of the floor spring of the hydraulic door leaf hinge of fig. 2.

Fig. 4 shows a schematic view of the piston of the hydraulic door leaf hinge of fig. 3.

Fig. 5 is a schematic view showing a structure of a cam rotating shaft of the hydraulic door leaf hinge of fig. 3.

Fig. 6 shows a schematic side view of the housing of the floor spring of the hydraulic door leaf hinge of fig. 2.

Fig. 7 shows a cross-sectional view at a-a of the housing of fig. 6.

Fig. 8 is a cross-sectional view at B-B of the housing of fig. 6.

Fig. 9 shows an exploded view of the upper bolt of the hydraulic door leaf hinge of fig. 2.

Fig. 10 is a schematic view showing an installation state of the upper plug of fig. 9.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description will be given with reference to the accompanying drawings and preferred embodiments in order to provide the best mode, structure, features and effects according to the present invention.

Referring to fig. 1-2, the first embodiment of the present invention of a hinge for a hydraulic door leaf 2 includes: the door comprises an inverted U-shaped door frame 1, a door 2, an upper bolt 3 for connecting the door 2 and the door frame 1 in a hinged manner, and a floor spring 4.

The bottom side of the door leaf 2 is provided with an installation groove 21 for installing the floor spring 4. The floor spring 4 is fixed in the mounting groove 21 by a first connection fixing plate 5 and a second connection fixing plate 6 which are 90 degrees therebetween. Further, the mounting groove 21 is opened in a side surface close to the door frame 1 side.

The door frame 1 is provided with a positioning groove 11 for accommodating the door 2 and enabling the door 2 to be opened and closed smoothly on one side. The door leaf 2 is accommodated in the positioning groove 11 when it is in the closed state.

Referring to fig. 3, the first connecting and fixing plate 5 is used to connect and fix the floor spring 4 and the door leaf 2 at the same side. The second connecting and fixing plate 6 is used for connecting and fixing the floor spring 4 and the bottom surface of the door leaf 2 in the same direction. Specifically, one side of the first connecting and fixing plate 5 and one side of the second connecting and fixing plate 6 are respectively connected and fixed with the side surface and the bottom surface of the floor spring 4 through bolts or screws 7, and the other side of the first connecting and fixing plate is connected and fixed with the side surface and the bottom surface of the door leaf 2 through a self-locking screw 8 in a triangular fixed point fixing mode.

The floor spring 4 includes a base portion 41 and a main portion 42, and the base portion 41 is connected to the floor. The base portion 41 includes a base 411, a pop-up screw 412 for fixedly connecting the base 411 to the ground, and a connecting bolt 413. The main body portion 42 includes: a housing 421, a piston 422 accommodated in the housing 421, and a cam rotary shaft 423 passing through the piston 422 and having an axis perpendicular to a central axis of the piston 422.

The base 411 is provided with a bolt coupling hole 411a and a fixing hole 411b having a positioning edge, and the lower end of the cam rotating shaft 423 is fitted into the fixing hole 411 b. Specifically, the ground is provided with a blind hole having the same diameter as the top-explosion screw 412 and used for installing the top-explosion screw 412, and the bolt connecting hole 411a is fixedly connected with the top-explosion screw 412 in the blind hole by being matched with a bolt, so that the base 411 is fixedly connected with the ground.

Referring to fig. 6, the housing 421 is opened with a piston chamber 421a for the longitudinal movement of the piston 422 and a cam rotation shaft chamber 421b for rotatably connecting the cam rotation shaft 423. The left and right sides of the piston chamber 421a are closed by a left side cover 425 and a right side cover 426, respectively. Hydraulic oil is arranged between the left side cover 425 and the right side cover 426 of the piston 422 and between the left side cover and the right side cover on the left side and the right side respectively, the upper part and the middle lower part of the cam rotating shaft 423 are connected with the shell 421 through bearings respectively, and sealing rings are arranged between the connecting bearings of the cam rotating shaft 423 and the middle lower part and the shell 421. Further, the hydraulic oil may be damping oil.

Referring to fig. 4-5, the piston 422 is provided with a pair of rollers 422a which are symmetrical along an axis, and a plurality of positioning recesses 423a for receiving a portion of the rollers 422a are formed at a side surface of the cam shaft 423. When the door leaf 2 is opened, the cam rotating shaft 423 is in contact with the roller 422a on one side and then drives the piston 422 to move towards the right side, and the roller 422a is clamped into the positioning recess 423a when the positioning recess 423a corresponds to the roller 422a, so that the opened door leaf 2 has certain positioning capacity, the opening positioning of the door leaf 2 at multiple angles can be realized, and the wind resistance is enhanced; when the door leaf 2 needs to be closed, the roller 422a is separated from the positioning recess 423a by external force, and then the automatic buffering closing can be realized.

Referring to fig. 7 to 8, a first pressure-adjusting port a1 and a second pressure-adjusting port a2 are formed on a side surface of the housing 421 to adjust a pressure in the piston chamber 421a to control a closing speed of the door 2, and the first pressure-adjusting port a1 and the second pressure-adjusting port a2 are respectively communicated with the piston chamber 421a through a long oil passage A3 and a short oil passage a 4. Specifically, the long oil passage a31 communicating with the first pressure adjusting port a1 is shorter than the long oil passage a32 communicating with the second pressure adjusting port a2, and the short oil passage a4 is located at both ends of the long oil passage a31 and the long oil passage a32, respectively, and communicates the long oil passage a31, the long oil passage a32, and the piston chamber 421 a. The first pressure regulating port A1 and the second pressure regulating port A2 are respectively provided with a pressure regulating screw A5.

Referring to fig. 9, the upper plug 3 is located between the door frame 1 and the upper surface of the door 2, the upper plug 3 includes an upper shaft sleeve 31, a lower shaft sleeve 32, and a shaft center 33 accommodated in the lower shaft sleeve 32, and an elastic member t for driving the shaft center 33 to partially push into the upper shaft sleeve 31 is disposed between the shaft center 33 and the lower shaft sleeve 32. It is preferred. The elastic member t is a compression spring.

The upper shaft sleeve 31 and the door frame 1, and the lower shaft sleeve 32 and the door 2 are respectively connected and fixed through tapping screws 35. The lower sleeve 32 is provided with a positioning screw hole 321 for limiting the extension or contraction of the shaft center 33, and a hexagon socket cap screw 331 matched with the positioning screw hole 321 is fixed at the lower end of the shaft center 33.

Further, the end parts of the inner holes of the lower shaft sleeve and the upper shaft sleeve are provided with bearings. Preferably, the bearing is a needle bearing.

Referring to fig. 10, the upper plug is in practical use: firstly, a hole is drilled on the door leaf frame, and then the upper shaft sleeve is fixed on the door leaf frame through a self-tapping screw. A groove which can be provided with a lower shaft sleeve is milled on the door leaf, the lower shaft sleeve is fixed on the door leaf through a self-tapping screw, and a through groove is milled at the corresponding position of a fastening screw at the side edge of the door leaf so as to adjust the movement stroke of the shaft center from the side edge. After the lower shaft sleeve is fixed, the shaft center is compressed in the lower shaft sleeve, then the door leaf is arranged in the door leaf frame, the shaft center is aligned to an inner hole of the upper shaft sleeve on the door leaf frame, and the shaft center is pushed into the inner hole of the upper shaft sleeve through the resilience force of the compression spring. When the door needs to be unloaded, the set screw is moved downwards through the hexagonal wrench so as to drive the axis to move until the axis is separated from the upper shaft sleeve, so that the door leaf can be easily moved out.

In an embodiment of the present invention, a check valve may be further disposed in the middle of the piston.

In an embodiment of the utility model, be equipped with the spring between piston and the right side lid, also can play the purpose that the buffering was closed when the door leaf low-angle was opened.

In an embodiment of the present invention, a nameplate for shielding the housing is connected to a side of the mounting groove.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person can make modifications or changes equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are within the scope of the present invention.

Claims

1. A hydraulic door hinge comprising: the door comprises an inverted U-shaped door leaf frame, a door leaf, an upper bolt and a floor spring, wherein the upper bolt and the floor spring are used for connecting the door leaf and the door leaf frame in a hinged mode; the floor spring is fixed in the mounting groove through a first connecting and fixing plate and a second connecting and fixing plate which form an angle of 90 degrees.

2. Hydraulic door leaf hinge according to claim 1, characterised in that the mounting groove opens at a side face close to the door leaf frame side.

3. Hydraulic door leaf hinge according to claim 2, characterised in that the door leaf frame is provided with positioning slots for receiving the door leaf and enabling the door leaf to be opened and closed smoothly on one side.

4. The hydraulic door leaf hinge according to claim 3, wherein the first connecting and fixing plate is used for connecting and fixing the floor spring and the same-direction side surface of the door leaf; the second connecting and fixing plate is used for connecting and fixing the floor spring and the bottom surface of the door leaf in the same direction.

5. Hydraulic door leaf hinge according to claim 4, characterised in that the floor spring comprises a base part and a body part, the base part being connected fixedly to the ground, the body part comprising: the piston comprises a shell, a piston accommodated in the shell and a cam rotating shaft penetrating through the piston and having an axis perpendicular to the central axis of the piston.

6. The hydraulic door leaf hinge according to claim 5, wherein the housing defines a piston cavity for the piston to move longitudinally and a cam shaft cavity for rotatably connecting the cam shaft; the left side and the right side of the piston cavity are respectively sealed through a left side cover and a right side cover; the upper portion and the middle lower portion of the cam rotating shaft are connected with the shell through bearings respectively, and sealing rings are arranged between the cam rotating shaft and the middle lower portion connecting bearing and between the cam rotating shaft and the shell.

7. Hydraulic door leaf hinge according to claim 5, characterised in that the piston is provided with a pair of axially symmetrical rollers, and that the side of the cam shaft is provided with a plurality of positioning recesses which can receive part of the rollers.

8. The hydraulic door leaf hinge according to claim 6, wherein a first pressure regulating port and a second pressure regulating port for regulating the pressure in the piston chamber to control the door leaf closing speed are provided on the side surface of the housing in the housing, and the first pressure regulating port and the second pressure regulating port are respectively provided with a long oil path and a short oil path for communicating with the piston chamber.

9. The hydraulic door leaf hinge according to claim 5, characterized in that the base part comprises a base, a pop-up screw and a connecting bolt for connecting and fixing the base to the ground; the base is provided with a bolt connecting hole and a fixing hole with a positioning edge, and the lower end of the cam rotating shaft is arranged in the fixing hole.

10. The hydraulic door leaf hinge according to claim 1, wherein the upper plug is located between the door leaf frame and the upper surface of the door leaf, the upper plug comprises an upper shaft sleeve, a lower shaft sleeve, and a shaft center accommodated in the lower shaft sleeve, and an elastic member for driving the shaft center to partially push into the upper shaft sleeve is arranged between the shaft center and the lower shaft sleeve;