CN114645651A - Cylinder pressure oil and spring combined type two-stage speed regulation rotating central shaft - Google Patents

Cylinder pressure oil and spring combined type two-stage speed regulation rotating central shaft Download PDF

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Publication number
CN114645651A
CN114645651A CN202210454395.7A CN202210454395A CN114645651A CN 114645651 A CN114645651 A CN 114645651A CN 202210454395 A CN202210454395 A CN 202210454395A CN 114645651 A CN114645651 A CN 114645651A
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CN
China
Prior art keywords
piston
oil
upper cover
rotating
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210454395.7A
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Chinese (zh)
Inventor
马永进
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Hubble Industrial Co ltd
Original Assignee
Zhejiang Hubble Industrial Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Hubble Industrial Co ltd filed Critical Zhejiang Hubble Industrial Co ltd
Priority to CN202210454395.7A priority Critical patent/CN114645651A/en
Publication of CN114645651A publication Critical patent/CN114645651A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/04—Additional features or accessories of hinges relating to the use of free balls as bearing-surfaces
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/10—Devices for preventing movement between relatively-movable hinge parts
    • E05D11/1014—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in only one position, e.g. closed
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00—Hinges or pivots of special construction
    • E05D7/08—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/12—Special devices controlling the circulation of the liquid, e.g. valve arrangement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

The invention discloses a cylinder pressing oil and spring combined type two-stage speed regulation rotating central shaft which comprises a base, wherein a conical needle roller bearing and a rotating shaft are arranged on the base, a steel shell and an upper cover are welded on the top surface of the base, the steel shell, the base and the upper cover are enclosed to form a main oil cylinder, the upper cover is provided with an oil cylinder, the oil cylinder is provided with a closing oil return hole and an opening oil return hole, the rotating shaft is provided with a rotating part, a piston is placed on the rotating part, the piston is provided with a wedge-shaped combining surface which is wedged with the rotating part, a spring is arranged between the piston and the upper cover, the steel shell is provided with a linear guide groove, the outer wall of the piston is provided with a linear guide ball, a vertical groove is arranged on the end surface of the rotating part, a pressure spring and a positioning ball are arranged on the combining surface of the piston. Has the beneficial effects that: the conical needle roller bearing is designed, so that the bearing capacity is strong; the design of the full cylinder oil does not need frequent oil adding and lubrication, thereby saving time and labor; the design of the flow control oil return hole effectively controls the opening force, and avoids the problems of low door closing speed, long waiting time, high speed, large collision inertia and the like when the door is closed.

Description

Cylinder pressure oil and spring combined type two-stage speed regulation rotating central shaft
Technical Field
The invention belongs to the technical field of ground shafts, and particularly relates to a cylinder pressure oil and spring combined type two-stage speed regulation rotating central shaft.
Background
The ground shaft revolving door is used more in the building, and especially, the door is frequently installed in office places, public places, hospitals, markets and the like where more people come and go, and the door is convenient to open and close, simple in structure and low in price. The door is provided with a ground shaft assembly which is a main part of the door for controlling opening and closing, and the door leaf is opened and closed by fixing the door leaf and the rotating shaft.
However, the existing rotating shaft has the problems of poor appearance, limitation lack, poor bearing capacity and difficulty in adjusting the door opening and closing speed.
Disclosure of Invention
The invention aims to provide a cylinder pressure oil and spring combined type two-stage speed regulation rotating central shaft to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a cylinder pressing oil and spring combined type two-stage speed regulation rotating central shaft comprises a base, wherein an upward annular bulge is arranged on the top surface of the base, a mounting groove is formed in the annular bulge, a flat conical needle bearing is fixed in the annular bulge, a vertical rotating shaft is fixed in the middle of the conical needle bearing, a steel shell sleeved outside the annular bulge is welded on the top surface of the base, an upper cover is welded on the top of the steel shell, the base and the upper cover enclose a main oil cylinder, the rotating shaft penetrates through the middle of the upper cover and is rotatably connected with the upper cover, a sub oil cylinder is arranged on the bottom surface of the upper cover, an oil return hole is closed and opened on the sub oil cylinder, a rotating part is arranged on the lower portion of the rotating shaft, an upward wedge-shaped combining surface is arranged on the top of the rotating part, a piston is placed on the rotating part and is slidably sleeved on the rotating shaft, and the piston consists of a combining part at the lower portion and a pipe part at the upper portion, the piston combination part is provided with a wedge-shaped combination surface which faces downwards and is wedged with the rotating part, the piston pipe part extends to the sub-oil cylinder and is tightly attached to the inner wall of the sub-oil cylinder, a spring which is sleeved outside the sub-oil cylinder is installed between the piston and the upper cover, the inner wall of the steel shell is provided with a vertical linear guide groove, the outer wall of the piston combination part is provided with linear guide balls which are partially located in the linear guide groove, a vertical groove is formed in the end surface of the rotating part, a pressure spring and a positioning ball are installed in the vertical groove, the piston combination part is provided with a hemispherical groove matched with the positioning ball, when the piston combination part and the wedge-shaped combination surface of the rotating part are completely wedged, the projection of the hemispherical groove of the piston on the rotating part and the positioning ball are located on the same circle, and the included angle of a circle center connecting line of the piston combination part and the positioning ball is 90 degrees.
Preferably, an annular groove is formed in the outer side of the annular protrusion, and a sealing ring is arranged in the annular groove.
Preferably, the upper cover is provided with a closing oil return speed regulating screw, and the bottom end of the closing oil return speed regulating screw extends into the closing oil return hole.
Preferably, the bottom surface of the upper cover is provided with a limiting part which can be seamlessly clamped on the inner wall of the steel shell.
Preferably, the whole width of the rotating part after the linear guide ball is installed on the rotating part is smaller than the diameter of the inner wall of the steel shell.
Preferably, the spring is located between the sub oil cylinder and the steel shell and respectively attached to the outer wall of the sub oil cylinder and the inner wall of the steel shell.
Preferably, a plurality of mounting holes are formed in the base.
Compared with the prior art, the invention has the beneficial effects that:
1. the hidden installation, the high-end is pleasing to the eye.
2. The 90-degree opening limit avoids overlarge opening angle of the door leaf or automatic closing of the door leaf.
3. The bearing design of toper bearing, the bearing capacity is strong.
4. The design of full cylinder oil does not need frequent oiling lubrication, and is time-saving and labor-saving.
5. The design of the flow control oil return hole effectively controls the opening force, and avoids the problems of low door closing speed, long waiting time, high speed, large collision inertia and the like when the door is closed.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic perspective view of a base according to the present invention;
FIG. 3 is a perspective view of the rotating shaft according to the present invention;
FIG. 4 is a schematic perspective view of the steel shell of the present invention;
FIG. 5 is a schematic perspective view of the upper cover and the oil cylinder of the present invention;
FIG. 6 is a front view of the upper cover and the sub-cylinder of the present invention;
FIG. 7 is a schematic perspective view of a piston according to the present invention;
FIG. 8 is a perspective view of the spring of the present invention;
fig. 9 is a schematic perspective view of the present invention.
In the figure: 1. a base; 2. an annular projection; 3. a tapered needle bearing; 4. a rotating shaft; 5. a steel shell; 6. an upper cover; 7. a sub-cylinder; 8. closing the oil return hole; 9. opening an oil return hole; 10. a rotating part; 11. a piston; 12. a spring; 13. a linear guide groove; 14. linear guide balls; 15. a vertical slot; 16. a pressure spring; 17. positioning the ball; 18. a seal ring; 19. closing the oil return speed regulation screw; 20. a limiting part; 21. and (7) installing holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, the invention provides a cylinder pressing oil and spring combined type two-stage speed regulation rotating central shaft, which comprises a base 1, wherein an upward annular bulge 2 is arranged on the top surface of the base 1, a mounting groove is formed in the annular bulge 2, a flat conical needle roller bearing 3 is fixed in the annular bulge 2, a vertical rotating shaft 4 is fixed in the middle of the conical needle roller bearing 3, and the conical needle roller bearing is designed to have strong bearing capacity; the top surface of the base 1 is welded with a steel shell 5 sleeved outside the annular bulge 2, the top of the steel shell 5 is welded with an upper cover 6, the steel shell 5, the base 1 and the upper cover 6 enclose a main oil cylinder, so that the main oil cylinder is enclosed, and lubricating oil is added; the rotating shaft 4 penetrates through the middle part of the upper cover 6 and is rotatably connected with the upper cover, the bottom surface of the upper cover 6 is provided with an oil cylinder 7, and the oil cylinder 7 is provided with an oil return closing hole 8 and an oil return opening hole 9, so that lubricating oil can conveniently enter and exit to form a loop; the lower part of the rotating shaft 4 is provided with a rotating part 10, the top of the rotating part 10 is provided with an upward wedge-shaped joint surface, a piston 11 is placed on the rotating part 10, the piston 11 is sleeved on the rotating shaft 4 in a sliding manner, the piston 11 consists of a lower joint part and an upper pipe part, and the joint part of the piston 11 is provided with a downward wedge-shaped joint surface which is wedged with the rotating part 10, so that the piston 11 can be driven to lift through the rotation of the rotating shaft 4; the pipe part of the piston 11 extends to the sub oil cylinder 7 and is tightly attached to the inner wall of the sub oil cylinder, so that lubricating oil is prevented from penetrating from the sub oil cylinder 7 to the main oil cylinder from a gap; a spring 12 sleeved outside the sub-oil cylinder 7 is arranged between the piston 11 and the upper cover 6, the rotating shaft 4 rotates reversely, a gap is generated between the wedge-shaped joint surface of the rotating part 10 and the piston 11 in the rotating process, and the spring 12 pushes the piston 11 to move downwards along the linear guide groove 13; a vertical linear guide groove 13 is formed in the inner wall of the steel shell 5, linear guide balls 14 which are partially positioned in the linear guide groove 13 are arranged on the outer wall of the joint part of the piston 11, and the piston 11 is provided with the linear guide balls 14 to reduce resistance in the movement process; the end face of the rotating part 10 is provided with a vertical groove 15, a pressure spring 16 and a positioning ball 17 are installed in the vertical groove 15, a hemispherical groove matched with the positioning ball 17 is formed in the joint part of the piston 11, when the joint part of the piston 11 and the wedge-shaped joint surface of the rotating part 10 are completely wedged, the projection of the hemispherical groove of the piston 11 on the rotating part 10 and the positioning ball 17 are located on the same circle, the included angle formed by the joint part of the piston 11 and the positioning ball 17 and a connecting line connecting the circle centers is 90 degrees, when the door leaf is opened to 90 degrees, the positioning ball 17 on the rotating shaft 4 is bounced into the hemispherical groove on the piston 11 under the action of the pressure spring 18, and the door leaf is effectively prevented from being automatically closed under the action of the spring force.
Referring to fig. 1-2, an annular groove is formed outside the annular protrusion 2, and a sealing ring 18 is installed in the annular groove; in the present embodiment, it is used to enhance the sealing between the steel shell 5 and the base 1.
Referring to fig. 1, a closing oil return speed regulating screw 19 is mounted on the upper cover 6, and the bottom end of the closing oil return speed regulating screw 19 extends into the closing oil return hole 8; in the present embodiment, during the oil return process, the oil return flow rate is adjusted by closing the oil return speed adjusting screw 19, so as to control the closing speed of the door leaf.
Referring to fig. 6, a limiting portion 20 capable of being seamlessly clamped on the inner wall of the steel shell 5 is disposed on the bottom surface of the upper cover 6; in this embodiment, the stability of the connection between the upper cover 6 and the steel shell 5 is enhanced.
Referring to fig. 1, the overall width of the rotating part 10, to which the linear guide balls 14 are attached, is smaller than the diameter of the inner wall of the steel shell 5; in this embodiment, the rotating part 10 can be inserted into the steel shell 5 after being fitted with the linear guide balls 14.
Referring to fig. 1, the spring 12 is located between the sub-cylinder 7 and the steel shell 5, and is respectively close to the outer wall of the sub-cylinder 7 and the inner wall of the steel shell 5; in the present embodiment, the spring 12 is thus stable against rattling between the sub-cylinder 7 and the steel shell 5.
Referring to fig. 1, 2 and 9, a plurality of mounting holes 21 are formed on the base 1; in the present embodiment, it is convenient for the base 1 to be fixedly installed by inserting an external fixing member through the installation hole 21.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
The working principle is as follows: when the door leaf is opened, the rotating shaft 4 is driven to rotate, the wedge-shaped joint surface of the rotating part 10 and the piston 11 is matched to push the piston 11 to move upwards along the linear guide groove 13 in the rotating process, and the piston 11 is provided with linear guide balls 14 to reduce resistance in the moving process;
in the upward movement process of the piston 11, the pipe part of the piston partially extends into the sub-oil cylinder 7, so that the space of the main oil cylinder is increased, meanwhile, the space of the sub-oil cylinder 7 is correspondingly reduced, and the pressure oil in the sub-oil cylinder 7 enters the main oil cylinder by opening the oil return hole 9;
when the door leaf is opened to 90 degrees, the positioning ball 17 on the rotating shaft 4 is bounced into the hemispherical groove on the piston 11 under the action of the pressure spring 18, so that the door leaf is effectively prevented from being automatically closed under the action of the spring force;
when the door leaf is closed, the rotating shaft 4 rotates reversely, a gap is generated between the wedge-shaped joint surface of the rotating part 10 and the piston 11 in the rotating process, and the spring 12 pushes the piston 11 to move downwards along the linear guide groove 13;
during the downward movement of the piston 11, the space of the main oil cylinder is reduced, meanwhile, the space of the sub oil cylinder 7 is correspondingly increased, the pressure oil in the main oil cylinder enters the sub oil cylinder 7 through the closed oil return hole 8, and during the oil return process, the closed speed of the door leaf is controlled by closing the oil return speed regulating screw 19 to regulate the oil return flow.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The cylinder pressing oil and spring combined type two-stage speed regulation rotating central shaft is characterized by comprising a base (1), wherein an upward annular bulge (2) is arranged on the top surface of the base (1), a mounting groove is formed in the annular bulge (2) and a flat conical needle bearing (3) is fixed in the annular bulge (2), a vertical rotating shaft (4) is fixed in the middle of the conical needle bearing (3), a steel shell (5) sleeved outside the annular bulge (2) is welded on the top surface of the base (1), an upper cover (6) is welded on the top of the steel shell (5), the base (1) and the upper cover (6) enclose a main oil cylinder, the rotating shaft (4) penetrates through the middle of the upper cover (6) and is rotatably connected with the upper cover, a sub oil cylinder (7) is arranged on the bottom surface of the upper cover (6), an oil return hole (8) is closed and an oil return hole (9) is opened on the sub oil cylinder (7), the rotary shaft is characterized in that a rotating part (10) is arranged at the lower part of the rotating shaft (4), an upward wedge-shaped joint surface is arranged at the top of the rotating part (10), a piston (11) is placed on the rotating part (10), the piston (11) is sleeved on the rotating shaft (4) in a sliding manner, the piston (11) consists of a lower joint part and an upper pipe part, the joint part of the piston (11) is provided with a downward wedge-shaped joint surface which is wedged with the rotating part (10), the pipe part of the piston (11) extends to the sub-oil cylinder (7) and is attached to the inner wall of the sub-oil cylinder, a spring (12) sleeved outside the sub-oil cylinder (7) is arranged between the piston (11) and the upper cover (6), a vertical linear guide groove (13) is arranged on the inner wall of the steel shell (5), and linear guide balls (14) partially positioned in the linear guide groove (13) are arranged on the outer wall of the joint part of the piston (11), be equipped with on rotating part (10) terminal surface and erect groove (15), just pressure spring (16) and location ball (17) are equipped with in erecting groove (15), piston (11) joint portion be equipped with location ball (17) the assorted hemisphere groove, when piston (11) joint portion with rotating part (10) wedge shape faying face is carved completely, piston (11) hemisphere groove is in rotating part (10) projection with location ball (17) are located same circle, and the contained angle that both connect the centre of a circle line is 90 degrees.
2. The cylinder pressing oil and spring combined type two-stage speed regulation rotating central shaft is characterized in that an annular groove is formed in the outer side of the annular protrusion (2), and a sealing ring (18) is arranged in the annular groove.
3. The cylinder pressing oil and spring combined type two-stage speed regulation rotating central shaft according to claim 1, wherein a closing oil return speed regulation screw (19) is mounted on the upper cover (6), and the bottom end of the closing oil return speed regulation screw (19) extends into the closing oil return hole (8).
4. The cylinder pressing oil and spring combined type two-stage speed regulation rotating central shaft according to claim 1, characterized in that a limiting part (20) capable of being seamlessly clamped on the inner wall of the steel shell (5) is arranged on the bottom surface of the upper cover (6).
5. A cylinder pressing oil and spring combined two-stage speed regulation rotary central shaft according to claim 1, characterized in that the whole width of the rotary part (10) is smaller than the diameter of the inner wall of the steel shell (5) after the linear guide ball (14) is arranged on the rotary part.
6. The cylinder pressing oil and spring combined type two-stage speed regulation rotating central shaft is characterized in that the spring (12) is located between the sub-oil cylinder (7) and the steel shell (5) and is respectively close to the outer wall of the sub-oil cylinder (7) and the inner wall of the steel shell (5).
7. The cylinder pressing oil and spring combined type two-stage speed regulation rotating central shaft is characterized in that a plurality of mounting holes (21) are formed in the base (1).
CN202210454395.7A 2022-04-27 2022-04-27 Cylinder pressure oil and spring combined type two-stage speed regulation rotating central shaft Pending CN114645651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210454395.7A CN114645651A (en) 2022-04-27 2022-04-27 Cylinder pressure oil and spring combined type two-stage speed regulation rotating central shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210454395.7A CN114645651A (en) 2022-04-27 2022-04-27 Cylinder pressure oil and spring combined type two-stage speed regulation rotating central shaft

Publications (1)

Publication Number Publication Date
CN114645651A true CN114645651A (en) 2022-06-21

Family

ID=81997793

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210454395.7A Pending CN114645651A (en) 2022-04-27 2022-04-27 Cylinder pressure oil and spring combined type two-stage speed regulation rotating central shaft

Country Status (1)

Country Link
CN (1) CN114645651A (en)

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