CN114059842A

CN114059842A - An eccentric shaft handle base mechanism

Info

Publication number: CN114059842A
Application number: CN202010748975.8A
Authority: CN
Inventors: 黄少为; 刘祥
Original assignee: Foshan Kaisenberg Construction Hardware Co ltd
Current assignee: Foshan Kaisenberg Construction Hardware Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2022-02-18

Abstract

The invention relates to an eccentric shaft handle base mechanism. The eccentric groove is provided with a fixing hole in the eccentric groove; the first transmission member includes a first gear and a connecting rod extending in sequence, the first gear is arranged in the central groove, and the connecting rod axially penetrates The second transmission member includes a second gear and a connecting shaft extending in sequence, the second gear is located in the eccentric groove and meshes with the first gear, and the connecting shaft faces away from the The extension direction of the connecting rod extends outward, and the middle part of the second gear is provided with a connecting hole; the connecting screw passes through the fixing hole and is screwed together with the connecting hole.

Description

Eccentric shaft handle base mechanism

Technical Field

The invention relates to the technical field of hardware doors and windows, in particular to an eccentric shaft handle base mechanism.

Background

The existing hardware door and window handle adopts a center transmission mode, so that the installation is inconvenient, and in some times, the installation can be carried out even if a section cavity is damaged. The existing transmission mode generally adopts a central square shaft for direct transmission, the transmission is not smooth enough, the transmission is relatively stiff, and the generated noise and friction are large; the transmission stroke is large, and the use is inconvenient; the square shaft is the setting of encircleing with the rivet nut, but the square shaft must guarantee enough distance with the rivet nut just enough to guarantee the intensity of handle seat and door and window section bar for the volume of handle is too big.

Disclosure of Invention

In view of the above, it is desirable to provide an eccentric shaft handle base mechanism that is easy to install.

In order to solve the technical problems, the invention adopts the technical scheme that: an eccentric shaft handle base mechanism comprising: the middle of the fixed base is provided with a central hole and a central groove which extend axially, one radial side of the central groove is provided with an eccentric groove communicated with the central groove, and a fixed hole is arranged in the eccentric groove; the first transmission piece comprises a first gear and a connecting rod which extend in sequence, the first gear is arranged in the central groove, and the connecting rod axially penetrates out of the central hole; the second transmission part comprises a second gear and a connecting shaft which extend in sequence, the second gear is positioned in the eccentric groove and is in transmission engagement with the first gear, the connecting shaft extends outwards in a direction opposite to the extending direction of the connecting rod of the first transmission part, and a connecting hole is formed in the middle of the second gear; and the connecting screw penetrates through the fixing hole and is matched and screwed with the connecting hole.

Furthermore, one side of the fixing base, which faces away from the second transmission part, is provided with a circular boss, the circular boss is connected with a sealing cover, a radial ball groove is formed between the circular boss and the sealing cover, a ball and a spring abutting against the ball are arranged in the ball groove, a ball positioning ring for blocking a radial opening of the ball groove is sleeved on the circular boss, and the ball positioning ring is provided with a positioning protrusion matched with the ball groove.

Furthermore, the ball groove is radially provided with four, be equipped with on the ball position circle four with the ball groove looks adaptation encircle the location arch that the array set up.

Further, a sleeve extends into the central hole.

Furthermore, the sealing cover is provided with a folded edge which is sleeved on the circular boss.

Furthermore, still include the rotating fixing base, be equipped with the confession in the rotating fixing base the pilot hole that the connecting rod stretched into.

Furthermore, the fixed baseplate is provided with a cover plate for blocking the central groove, the cover plate is detachably connected with the fixed baseplate, the cover plate is provided with a position avoiding hole for the connecting shaft to penetrate through, and the rotary fixed base, the sealing cover, the fixed baseplate and the cover plate are fixedly connected into a whole.

Furthermore, one surface of the fixed base facing the cover plate is provided with a groove, and the cover plate is embedded in the groove.

Furthermore, a plurality of positioning convex columns are arranged in the grooves, and the cover plate is provided with positioning holes matched with the positioning convex columns.

Furthermore, a first gasket sleeved on the connecting rod is arranged in the central groove, a second gasket is arranged in the eccentric groove, and the second gear abuts against the second gasket.

The invention has the beneficial effects that: the first transmission piece and the second transmission piece are matched to be conveniently and directly arranged on the notch surface of the section bar, so that the cavity of the section bar is prevented from being damaged, the installation is convenient and simple, and the efficiency is improved; the first gear and the second gear are matched, so that transmission is smoother, and user experience is good; and the stroke can be conveniently controlled according to the requirement by controlling the transmission ratio between the first gear and the second gear, and the use is simple and convenient.

Drawings

Fig. 1 is a schematic structural view of an eccentric shaft handle base mechanism according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structure view of an eccentric shaft handle base mechanism according to an embodiment of the present invention;

fig. 3 is an exploded view of an eccentric shaft handle base mechanism according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a circular boss of an eccentric shaft handle base mechanism of an embodiment of the present invention.

FIG. 5 is a schematic illustration of an assembly process for an eccentric shaft handle base mechanism of an embodiment of the present invention;

fig. 6 is an assembly schematic view of an eccentric shaft handle base mechanism and a door and window profile of an embodiment of the present invention.

Description of reference numerals:

100. a fixed base; 110. a central bore; 120. a central slot; 130. an eccentric groove;

140. a fixing hole; 150. a circular boss; 151. a first ball groove; 152. a ball bearing; 153. a spring;

160. mounting holes; 170. a groove; 171. positioning the convex column; 200. a first transmission member;

210. a first gear; 220. a cylindrical rod; 230. a prismatic rod; 240. a first gasket;

300. a second transmission member; 310. a second gear; 320. a connecting shaft; 321. connecting holes;

330. a second gasket; 400. a connecting screw; 500. a cover plate; 510. avoiding holes; 520. positioning holes;

600. a ball positioning ring; 610. positioning the projection; 700. sealing the cover; 710. a second ball groove; 720. a sleeve;

730. folding edges; 800. a rotating fixed seat; 810. an assembly hole; 811. and assembling screws.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the eccentric shaft handle base mechanism of the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-6, an eccentric shaft handle base mechanism includes: a fixed base 100, wherein the middle part of the fixed base is provided with a central hole 110 and a central groove 120 which extend axially, one side of the central groove 120 in the radial direction is provided with an eccentric groove 130 communicated with the central groove 120, and a fixed hole 140 is arranged in the eccentric groove 130; the first transmission member 200 comprises a first gear 210 and a connecting rod which extend in sequence, the first gear 210 is arranged in the central groove 120, the cylindrical rod 220 is matched with the central hole 110, and the connecting rod axially penetrates out of the central hole 110; the second transmission piece 300 comprises a second gear 310 and a connecting shaft 320 which extend in sequence, the second gear 310 is positioned in the eccentric groove 130 and is in transmission engagement with the first gear 210, the connecting shaft 320 extends outwards in a direction opposite to the extending direction of the connecting rod of the first transmission piece 200, and a connecting hole 321 is formed in the middle of the second gear 310; the connecting screw 400 passes through the fixing hole 140 and is matched and screwed with the connecting hole 321.

The first transmission piece 200 and the second transmission piece 300 are matched to be conveniently and directly arranged on the notch surface of the section bar, so that the cavity of the section bar is prevented from being damaged, the installation is convenient and simple, and the efficiency is improved; the cooperation of the first gear 210 and the second gear 310 enables the transmission to be smoother and the user experience to be good; and the stroke can be conveniently controlled according to the requirement by controlling the transmission ratio between the first gear 210 and the second gear 310, and the use is simple and convenient.

Referring to fig. 2-5, a circular boss 150 is disposed on a surface of the fixing base 100 facing away from the second transmission element 300, the circular boss 150 is connected to a sealing cover 700, a radial ball groove is disposed between the circular boss 150 and the sealing cover 700, a ball 152 and a spring 153 for supporting the ball 152 are disposed in the ball groove, a ball positioning ring 600 for blocking a radial opening of the ball groove is sleeved on the circular boss 150, and the ball positioning ring 600 is provided with a positioning protrusion 610 adapted to the ball groove. Simply, the ball grooves include a first ball groove 151 provided on the circular boss 150 and a second ball groove 710 provided on the cover 700. In particular, the cover 700 is made of a non-metallic material, preferably a plastic or plastic material, which provides smoother contact between metal and metal, reduces friction, and reduces gaps. Simply, the cover 700 is threadably secured to the circular boss 150.

Referring to fig. 3-5, four ball grooves are radially arranged, and four positioning protrusions 610 matched with the ball grooves and arranged in a surrounding array are arranged on the ball positioning ring 600. Four location projections 610 can be more accurate fix a position, and the location nature is good, and four balls 152 and spring 153's cooperation can rotate more balanced smooth and easy.

Referring to fig. 2, 3 and 5, the closure 700 has a sleeve 720 extending within the central bore 110. Can guarantee the complex accurate, the clearance is little, has reduced and has rocked and the noise.

Referring to fig. 1-5, the cover 700 has a flange 730 disposed on the circular boss 150. Hem 730's setting can be better with the cooperation of fixed baseplate 100, reduces the clearance to can cooperate fixed baseplate 100 fixed ball position circle 600, avoid ball position circle 600 not hard up.

Referring to fig. 1-5, the device further includes a rotating holder 800, and an assembling hole 810 for the connecting rod to extend into is formed in the rotating holder 800. Particularly, the assembly hole 810 is a prismatic hole, the connecting rod includes a prismatic rod 230, a screw hole is formed in the prismatic rod 230, and the assembly screw 811 is matched with the screw hole to connect the second transmission member 300 with the rotary fixing base 800. Particularly, the connecting rod further includes a round rod 220 between the rib 230 and the first gear 210, and the round rod 220 is matched with the central hole 110 or the sleeve 720, so that the rotation is smoother and the stability is stronger.

Referring to fig. 1 to 5, the fixing base 100 is provided with a cover plate 500 for blocking the central groove, the cover plate 500 is detachably connected to the fixing base 100, the cover plate 500 is provided with a clearance hole 510 for the connecting shaft 320 to pass through, and the rotating fixing seat 800, the cover 700, the fixing base 100 and the cover plate 500 are fixedly connected into a whole. Simply, the rotary fixing seat 800, the sealing cover 700, the fixing base 100 and the cover plate 500 are provided with mounting holes 160 which are axially communicated, and are connected into a whole through bolts and matched nuts, and the nuts can be selected as required to be rivet nuts. In particular, the mounting holes 160 and the connection holes 321 are arranged around the central hole 110 in an array.

Referring to fig. 2, 3 and 5, a groove 170 is disposed on a surface of the fixing base 100 facing the cover plate 500, and the cover plate 500 is embedded in the groove 170. The stability and strength of the connection between the cover plate 500 and the fixing base 100 are improved.

Referring to fig. 2, 3 and 5, a plurality of positioning protrusions 171 are disposed in the recess 170, and the cover plate 500 has positioning holes 520 matching with the positioning protrusions 171. The circumferential rotation of the cover plate 500 is restricted, and the cover plate 500 is prevented from moving along with the rotation of the first gear 210 or the second gear 310.

Referring to fig. 2, fig. 3 and fig. 5, a first gasket 240 is disposed in the central groove 120 and sleeved on the cylindrical rod 220, a second gasket 330 is disposed in the eccentric groove 130, and the second gear 310 abuts against the second gasket 330. The provision of the first and

second spacers

240 and 330 reduces backlash and frictional resistance, which is an aspect of transmission between the first and

second gears

210 and 310. Simply, the connecting screw 400 connected to the second transmission member 300 is sleeved with a third gasket.

Referring to fig. 6, a driver 920 is disposed in the notch surface 910 of the door/window profile 900, and the driver protrudes out of the notch surface 910 to connect with the connecting shaft 320 of the second driving member 300. It is avoided that the centrally arranged transmission element penetrates the side wall of the slot face 910 and is connected to the transmission element 920, i.e. that the side wall of the slot face 910 of the profile 900 is damaged.

In conclusion, the eccentric shaft handle base mechanism provided by the invention is conveniently and directly arranged on the notch surface of the section bar through the matching of the first transmission part and the second transmission part, so that the cavity of the section bar is prevented from being damaged, the installation is convenient and simple, and the efficiency is improved; the first gear and the second gear are matched, so that transmission is smoother, and user experience is good; and the stroke can be conveniently controlled according to the requirement by controlling the transmission ratio between the first gear and the second gear, and the use is simple and convenient.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An eccentric shaft handle base mechanism, comprising:

the middle of the fixed base is provided with a central hole and a central groove which extend axially, one radial side of the central groove is provided with an eccentric groove communicated with the central groove, and a fixed hole is arranged in the eccentric groove;

the first transmission piece comprises a first gear and a connecting rod which extend in sequence, the first gear is arranged in the central groove, and the connecting rod axially penetrates out of the central hole;

the second transmission part comprises a second gear and a connecting shaft which extend in sequence, the second gear is positioned in the eccentric groove and is in transmission engagement with the first gear, the connecting shaft extends outwards in a direction opposite to the extending direction of the connecting rod of the first transmission part, and a connecting hole is formed in the middle of the second gear;

and the connecting screw penetrates through the fixing hole and is matched and screwed with the connecting hole.

2. The eccentric shaft handle base mechanism of claim 1, wherein the fixed base has a circular boss on a side facing away from the second driving member, the circular boss is connected with a cover, a radially-radiating ball groove is formed between the circular boss and the cover, a ball and a spring abutting against the ball are arranged in the ball groove, a ball retainer ring for blocking a radial opening of the ball groove is sleeved on the circular boss, and the ball retainer ring is provided with a retainer protrusion adapted to the ball groove.

3. The eccentric shaft handle base mechanism of claim 2, wherein the ball grooves are radially arranged in four, and the ball retainer ring has four retaining tabs arranged in a circular array that fit into the ball grooves.

4. The eccentric handle base mechanism of claim 2, wherein the cover extends a sleeve into the central bore.

5. The eccentric shaft handle base mechanism of claim 2, wherein the cover has a flange that fits over the circular boss.

6. The eccentric shaft handle base mechanism of claim 2, further comprising a rotating mounting base having a mounting hole therein for the connecting rod to extend into.

7. The eccentric shaft handle base mechanism of claim 6, wherein the fixed base is configured with a cover plate that blocks the central slot, the cover plate is detachably connected to the fixed base, the cover plate is configured with a clearance hole for the connecting shaft to pass through, and the rotary holder, the cover, the fixed base and the cover plate are fixedly connected into a whole.

8. The eccentric shaft handle base mechanism of claim 7, wherein a recess is provided in a side of the fixed base facing the cover plate, and the cover plate is embedded in the recess.

9. The eccentric shaft handle base mechanism of claim 8, wherein a plurality of positioning posts are disposed in the recess, and the cover plate has positioning holes that mate with the positioning posts.

10. The eccentric shaft handle base mechanism of claim 1, wherein a first washer is disposed in the central slot and fits over the connecting rod, and a second washer is disposed in the eccentric slot and the second gear abuts against the second washer.