CN216277431U

CN216277431U - Multifunctional hinge mandrel

Info

Publication number: CN216277431U
Application number: CN202122648803.6U
Authority: CN
Inventors: 项伟斌
Original assignee: Wenzhou Langqi Hardware Co ltd
Current assignee: Wenzhou Langqi Hardware Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-04-12
Anticipated expiration: 2031-11-01

Abstract

The utility model provides a multifunctional hinge mandrel which comprises a mandrel body, a piston sleeve and an outer sleeve, wherein a spring for pushing the piston is arranged outside the mandrel body, one end of the mandrel body is movably inserted into the piston, a space for the mandrel body to move axially is formed in the piston, a first pin shaft is connected to the mandrel body, at least one end of the first pin shaft protrudes out of the surface of the mandrel body, and a moving groove for the first pin shaft to move linearly along the axial direction of the mandrel body is formed in the piston. According to the utility model, the pin shaft is arranged on the shaft core, the movable groove for the pin shaft to move is arranged on the piston, the shaft sleeve can be arranged on the pin shaft, the sliding friction of the shaft sleeve is changed into rolling friction, and meanwhile, the design is convenient for machining and the production cost is low.

Description

Multifunctional hinge mandrel

Technical Field

The utility model belongs to the technical field of hinges or hinges, and particularly relates to a hinge mandrel.

Background

The hinge is also called as a hinge, is a mechanical device which is used for connecting two solids and allowing the two solids to rotate relatively, brings better enjoyment to people, and has an automatic door closing hinge, the hinge connected with the piston sleeve automatically rotates to close the door by arranging a spring in the hinge mandrel to push the piston to linearly move and then arranging a spiral groove on the piston to match with the pin shaft to drive the piston sleeve to rotate, for example, the publication No. CN102278031B discloses a multifunctional hinge mandrel, the core shaft pushes the piston to compress the spring through the piston sleeve when the door is opened, the spring releases pressure to automatically close the door when the door is closed, the transmission between this hinge dabber central spindle and the piston is through processing tooth in the axle spindle outside, processes tooth alveolus in the piston, and both adaptations realize the piston linear motion on the axle spindle, and the design of this kind of processing tooth and tooth alveolus is not only that the manufacturing procedure is loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hinge mandrel which is simple in structure, convenient to process and not easy to wear.

The utility model is realized by the following technical scheme:

the utility model provides a multi-functional hinge dabber, includes axle core, piston bush, overcoat, wherein is equipped with the spring that pushes away the piston at the axle core overcoat, and axle core one end activity is pegged graft in the piston, and is equipped with the space that supplies the axle core axial activity in the piston, the axle core on be connected with first round pin axle, at least one end protrusion in axle core surface of this first round pin axle to be equipped with the movable groove that supplies this first round pin axle to move about along axle core axial straight line on the piston.

Preferably, the end part of the first pin shaft protruding out of the surface of the shaft core is connected with a first shaft sleeve, and the first shaft sleeve rolls along with the first pin shaft in a movable groove of the piston.

Preferably, the shaft core is cylindrical as a whole, and a connection plane for preventing slipping during connection is arranged on the side surface of the upper end of the shaft core.

Preferably, the first pin shaft radially penetrates through the shaft core.

Preferably, the piston is further provided with two spiral grooves, a second pin shaft is arranged in each spiral groove, and two ends of each second pin shaft protrude out of the outer surface of the piston and are inserted into the piston sleeve.

Preferably, a second shaft sleeve is sleeved outside the second pin shaft and is arranged in the spiral groove, and the piston is in rolling fit with the second shaft sleeve when the piston rotates.

As preferred, lie in the connection plane below on the axle core from last to radially being equipped with axle core oil seal groove, steel ball groove down in proper order, axle core upper portion from last to overlapping in proper order down is equipped with the fixed cover of axle core, steel ball lock ring, is connected with the bearing between axle core and the fixed cover of axle core, the steel ball is located the steel ball inslot, axle core upper end in the middle of be equipped with the axial through hole, be connected with the pressure regulating screw in this axial through hole, radially be equipped with the pressure regulating cotter groove that link up the axle core setting at the axle core, axial through hole and this pressure regulating cotter groove intercommunication, pressure regulating cotter inslot swing joint has the pin, pressure regulating screw lower extreme butt pin, spring upper end butt pin.

Preferably, the lower end of the piston is provided with a piston cover, the lower end of the outer sleeve is provided with a lower sealing cover, the lower sealing cover and the piston sleeve are of an integrated structure, the piston cover is provided with a one-way valve and a speed regulation valve hole, the speed regulation valve hole is communicated with the inner cavity of the piston, the speed regulation oil core is further included, the lower end of the speed regulation oil core is in threaded connection with the lower sealing cover, and the upper end of the speed regulation oil core is inserted into the speed regulation valve hole.

Preferably, a positioning part for positioning the second pin shaft at the position is arranged on the groove wall at the bottom of the spiral groove, and the positioning part is an inward-concave deep groove or a blocking protrusion protruding out of the groove wall of the spiral groove.

Preferably, an oil seal is arranged between the piston and the piston sleeve, and an oil seal is arranged between the piston sleeve and the outer sleeve.

The utility model has the beneficial effects that: according to the utility model, the pin shaft is arranged on the shaft core, the movable groove for the pin shaft to move is arranged on the piston, the shaft sleeve can be arranged on the pin shaft, the sliding friction of the shaft sleeve is changed into rolling friction, and meanwhile, the design is convenient for machining and the production cost is low.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the piston of the present invention;

FIG. 4 is a front view of the piston;

fig. 5 is a cross-sectional view of the piston cap.

Detailed Description

The present invention will be further described with reference to the following examples.

Examples

As shown in fig. 1-5, the multifunctional hinge core shaft includes a core 1, a piston 2, a piston sleeve 3, and an outer sleeve 4, wherein the outer sleeve of the core 1 is provided with a spring 5 for pushing the piston 2, one end of the core 1 is movably inserted into the piston 2, and the piston 2 is provided with a space for the axial movement of the core 1, the core 1 is connected with a first pin 6, at least one end of the first pin 6 protrudes out of the surface of the core 1, and the piston 2 is provided with a movable groove 21 for the axial linear movement of the first pin 6 along the core 1. In this embodiment, the piston is a hollow structure, and a piston cover 20 is disposed at the bottom, in order to reduce friction between the first pin shaft and the piston, in this embodiment, the end of the first pin shaft 6 protruding out of the surface of the shaft core 1 is connected with a first shaft sleeve 7, and the first shaft sleeve 7 rolls along with the first pin shaft 6 in a movable groove 21 of the piston 2. In this embodiment, the first pin shaft 6 radially penetrates through the shaft core 1, and both ends of the first pin shaft protrude out of the side surface of the shaft core.

Furthermore, the whole shaft core 1 is cylindrical, and the side surface of the upper end of the shaft core 1 is provided with a connecting plane 11 for preventing slipping during connection.

The piston 2 is further provided with two spiral grooves 22, a second pin shaft 8 is arranged in the spiral grooves 22, and two ends of the second pin shaft 8 protrude out of the outer surface of the piston 2 and are inserted into the piston sleeve 3. The second shaft sleeve 9 is arranged outside the second pin shaft 8, the second shaft sleeve 9 is arranged in the spiral groove 22, and when the piston 2 rotates, the piston 2 is in rolling fit with the second shaft sleeve 9. In order to automatically increase the door opening or closing force during door opening or closing, the present embodiment designs the spiral groove as three angular portions, which are substantially identical to those of the spiral groove in the prior art.

Lie in the 11 below of connection plane on axle core 1 from last to radially being equipped with axle core oil seal groove 12, steel ball groove 13 down in proper order, 1 upper portion of axle core is from last to overlapping in proper order down and being equipped with the fixed cover of axle core 10, steel ball lock ring 14, is connected with bearing 15 between axle core 1 and the fixed cover of axle core, steel ball 16 locates in steel ball groove 13, 1 upper end of axle core in the middle of be equipped with axial through hole 18, be connected with pressure regulating screw 17 in this axial through hole 18, radially be equipped with the pressure regulating pin groove 19 that link up axle core 1 and set up at axle core 1, axial through hole 18 and this pressure regulating pin groove 19 intercommunication, swing joint has pin 28 in the pressure regulating

pin groove

19, 17 lower extreme butt pin of pressure regulating screw, spring 5 upper end butt pin. In this embodiment, an oil seal is arranged between the pressure regulating screw and the shaft core, and the oil seal is a sealing ring.

Be equipped with lower closing cap 23 at the lower extreme of overcoat 4, closing cap 23 and 3 integral type structures of piston sleeve under this embodiment are equipped with check valve 29 and a speed governing valve opening 24 on piston cap 20, the check valve include the through-hole that a both ends aperture differs, during this through-hole was arranged in to a steel ball, the steel ball diameter was greater than the little one end diameter of through-hole diameter and was less than the big one end of diameter, the steel ball was packed into and is handled at the big one end throat of diameter behind the through-hole, prevents the steel ball roll-off, the inner chamber intercommunication of speed governing valve opening 24 and piston 2 still includes speed governing oil core 25, speed governing oil core 25 lower extreme threaded connection is on closing cap 23 down, speed governing oil core 25 upper end inserts to in speed governing valve opening 24.

The groove wall at the bottom of the spiral groove 22 is provided with a positioning part 26 for positioning the second pin shaft 8 at the position, and the positioning part 26 is a deep groove which is concave inwards or a blocking protrusion which protrudes out of the groove wall of the spiral groove 22. When the piston rotates to the position where the second pin shaft is clamped into the positioning position, the door is fixed at the position.

The piston 2 and the piston sleeve 3 are provided with an oil seal therebetween, the piston sleeve 3 and the outer sleeve 4 are provided with an oil seal 27 therebetween, and the oil seal is an O-shaped sealing ring in the embodiment.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to explain the principles of the utility model, and that various modifications and alterations can be made by those skilled in the art without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a multi-functional hinge dabber, includes dabber (1), piston (2), piston bush (3), overcoat (4), wherein is equipped with spring (5) that push away piston (2) at dabber (1) overcoat, and dabber (1) one end activity is pegged graft in piston (2), and is equipped with the space that supplies dabber (1) axial motion in piston (2), its characterized in that: the piston type hinge pin is characterized in that the shaft core (1) is connected with a first pin shaft (6), at least one end of the first pin shaft (6) protrudes out of the surface of the shaft core (1), and a movable groove (21) for the first pin shaft (6) to linearly move along the axial direction of the shaft core (1) is formed in the piston (2).

2. The multifunctional hinge mandrel as claimed in claim 1, wherein: the end part of the first pin shaft (6) protruding out of the surface of the shaft core (1) is connected with a first shaft sleeve (7), and the first shaft sleeve (7) rolls along with the first pin shaft (6) in a movable groove (21) of the piston (2).

3. The multifunctional hinge mandrel as claimed in claim 1, wherein: the whole shaft core (1) is cylindrical, and the side face of the upper end of the shaft core (1) is provided with a connecting plane (11) for preventing slipping during connection.

4. The multifunctional hinge mandrel as claimed in claim 1, wherein: the first pin shaft (6) radially penetrates through the shaft core (1).

5. The multifunctional hinge mandrel as claimed in claim 1, wherein: the piston (2) is also provided with two spiral grooves (22), a second pin shaft (8) is arranged in each spiral groove (22), and two ends of each second pin shaft (8) protrude out of the outer surface of the piston (2) and are inserted into the piston sleeve (3).

6. The multifunctional hinge mandrel as claimed in claim 5, wherein: a second shaft sleeve (9) is arranged on the outer sleeve (4) of the second pin shaft (8), the second shaft sleeve (9) is arranged in the spiral groove (22), and when the piston (2) rotates, the piston (2) is in rolling fit with the second shaft sleeve (9).

7. A multi-function hinge mandrel as claimed in claim 3, wherein: an axle core oil seal groove (12) and a steel ball groove (13) are sequentially and radially arranged below the connecting plane (11) on the axle core (1) from top to bottom, an axle core fixing sleeve (10) and a steel ball supporting ring (14) are sequentially sleeved on the upper part of the axle core (1) from top to bottom, a bearing (15) is connected between the axle core (1) and the axle core fixing sleeve (10), a steel ball (16) is arranged in the steel ball groove (13), an axial through hole (18) is arranged in the middle of the upper end of the axle core (1), the axial through hole (18) is internally connected with a pressure regulating screw (17), the shaft core (1) is radially provided with a pressure regulating pin groove (19) which runs through the shaft core (1), the axial through hole (18) is communicated with the pressure regulating pin groove (19), the pressure regulating pin groove (19) is internally and movably connected with a stop lever (28), the lower end of the pressure regulating screw (17) is abutted to the stop lever, and the upper end of the spring (5) is abutted to the stop lever.

8. The multifunctional hinge mandrel as claimed in claim 1, wherein: be equipped with piston cap (20) at piston (2) lower extreme, be equipped with lower closing cap (23) at the lower extreme of overcoat (4), closing cap (23) and piston sleeve (3) integral type structure down, be equipped with check valve (29) and a speed governing valve opening (24) on piston cap (20), the inner chamber intercommunication of speed governing valve opening (24) and piston (2), still include speed governing oil core (25), speed governing oil core (25) lower extreme threaded connection is on closing cap (23) down, speed governing oil core (25) upper end inserts in speed governing valve opening (24).

9. A multifunctional hinge mandrel as claimed in claim 5 or 6, wherein: and a positioning part (26) for positioning the second pin shaft (8) at the position is arranged on the groove wall at the bottom of the spiral groove (22), and the positioning part (26) is an inward-concave deep groove or a blocking protrusion protruding out of the groove wall of the spiral groove (22).

10. The multifunctional hinge mandrel as claimed in claim 1, wherein: and an oil seal (27) is arranged between the piston (2) and the piston sleeve (3), and an oil seal (27) is arranged between the piston sleeve (3) and the outer sleeve (4).