CN213838060U

CN213838060U - Eccentric shaft structure base full-hidden handle

Info

Publication number: CN213838060U
Application number: CN202021553096.1U
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: 2021-07-30
Anticipated expiration: 2030-07-30

Abstract

The utility model relates to a totally hidden handle of eccentric shaft structure base, include: the handle is provided with a mounting opening, the mounting opening comprises a ridge and a circular groove, and the inner circumferential surface of the circular groove is provided with a positioning clamping groove; the transmission assembly comprises a rotary fixing seat, a fixed base, a ball positioning ring, a sealing cover and a gear transmission mechanism, wherein the rotary fixing seat is provided with a convex edge and a disc, a through hole is formed in one side of the edge opening on the handle, a machine-meter screw penetrates through the through hole to be connected with the convex edge, the disc, the fixed base, the ball positioning ring and the sealing cover are arranged in a circular groove, balls and springs are assembled in the ball positioning ring and the sealing cover, the ball positioning ring is provided with a bulge which corresponds to the balls and is matched with the positioning clamping groove, the disc, the fixed base and the sealing cover are provided with a center hole and a connecting hole which is arranged around the center hole, a connecting screw penetrates through the connecting hole to be connected with a rivet nut arranged in a door and window profile, the gear transmission mechanism comprises a center transmission rod and an eccentric transmission rod, and the eccentric transmission rod stretches into the door and window profile.

Description

Eccentric shaft structure base full-hidden handle

Technical Field

The utility model relates to a hardware and window technical field especially relates to a totally hidden handle of eccentric shaft structure base.

Background

The handle and the door and window section bar are connected in the technical field of hardware doors and windows, the handle seat of the handle and the door and window section bar is generally exposed, the exposed handle seat can affect the indoor space, the external structure of a product is further complicated, the stability of the product is poor, the transmission assembly of the handle is driven by a central square shaft, the square shaft and a rivet nut are arranged in a surrounding mode, but the square shaft and the rivet nut must guarantee enough distance to guarantee the strength of the handle seat and the door and window section bar, the size of the handle is overlarge, the other hand is driven by the square shaft, the transmission is relatively stiff, the generated noise and friction are large, the transmission stroke is large, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of the above circumstances, it is necessary to provide a base hidden handle with an eccentric shaft structure having high stability.

In order to solve the technical problem, the utility model discloses a technical scheme be: a full hidden handle of eccentric shaft structure base includes: the handle is provided with a mounting opening, the mounting opening comprises a ridge and a circular groove which extend outwards in sequence, and the inner circumferential surface of the circular groove is provided with positioning clamping grooves arranged in a surrounding array manner; the transmission assembly comprises a rotary fixing seat, a fixing base, a ball positioning ring, a sealing cover and a gear transmission mechanism, wherein the rotary fixing seat is provided with a convex rib matched with the edge opening and a disc extending along the convex rib, one side of the edge opening is provided with a through hole for a machine-meter screw to extend into, the machine-meter screw penetrates through the through hole to be connected with the convex rib, the disc is provided with the fixing base, the ball positioning ring and the sealing cover are arranged in a circular groove, the fixing base, the ball positioning ring and a spring for supporting the ball are assembled in the sealing cover, the ball positioning ring is provided with a bulge corresponding to the ball and matched with the positioning groove, the disc, the fixing base and the sealing cover are provided with a center hole penetrating axially and a connecting hole surrounding the center hole, the gear transmission mechanism comprises a center transmission rod arranged in the center hole and a transmission rod connected with the center transmission rod and a diameter transmission rod An eccentric drive link offset from the central drive link.

Furthermore, the fixed base comprises a circular base and a circular boss which extend in sequence, the ball locating ring is sleeved on the circular boss, the sealing cover is provided with a folded edge which is sleeved on the circular boss and supports the ball locating ring, a radial ball channel is arranged between the circular boss and the sealing cover, balls and springs which support the balls are arranged in the ball channel, and the radial opening of the ball channel is sealed by the bulge of the ball locating ring.

Further, the central transmission rod comprises a first extended gear and a first connecting rod, the first connecting rod is provided with a first inner hole facing away from the opening of the first gear, the first connecting rod penetrates through the central hole and extends into the convex edge, a first screw is connected with the first inner hole, the eccentric transmission rod comprises a second gear and a second connecting rod, the second connecting rod extends into the cavity of the door and window profile back to the round base, the first gear is engaged with the second gear in a transmission way, a central groove which is used for accommodating the first gear and is axially communicated with the central hole is arranged in the circular base, and an eccentric groove provided at one side of the central groove to accommodate the second gear, the eccentric groove being provided with a fixing hole therein, the second connecting rod is provided with a second inner hole back to the opening of the first gear, and a second screw penetrates through the fixing hole to be matched with the second inner hole.

Furthermore, a first gasket matched with the central transmission rod is arranged in the central groove, a second gasket matched with the second gear is arranged in the eccentric groove, and a third gasket is sleeved on one side, back to the eccentric groove, of the second inner hole of the second screw.

Furthermore, the distance between the circle center of the connecting hole and the circle center of the eccentric groove is equal to the distance between the circle center of the central hole.

Further, the connecting holes and the eccentric grooves are arranged around the central hole array.

Furthermore, a cover plate is arranged on one surface, back to the sealing cover, of the fixing base, a position avoiding hole for the second connecting rod to extend out is formed in the cover plate, the connecting hole penetrates through the cover plate, and the cover plate is connected with the fixing base to seal the central groove.

Furthermore, a groove is formed in one side, back to the circular boss, of the circular base, and the cover plate is embedded in the groove.

Furthermore, the circular base is provided with a positioning convex column in the groove, and the cover plate is provided with a positioning hole matched with the convex column.

Furthermore, the number of the positioning clamping grooves is four, and the protrusions of the ball and the ball positioning ring are matched with the positioning clamping grooves.

The beneficial effects of the utility model reside in that: the rotary fixing seat, the fixed base, the ball positioning ring and the sealing cover are arranged at the mounting opening, so that the exposure is avoided, and the stability of the product is improved; the exposed eccentric transmission rod has enough distance between the eccentric center and the connecting hole, so that the distance is increased, the integral strength is enhanced, and the integral volume is conveniently reduced.

Drawings

Fig. 1 is a schematic view of a cross-sectional structure of a fully-hidden handle of an eccentric shaft structure base in an embodiment of the present invention;

fig. 2 is an exploded schematic view of the eccentric shaft structure base full hidden handle of the embodiment of the present invention;

fig. 3 is a schematic view of the appearance structure of the eccentric shaft structure base full hidden handle of the embodiment of the present invention;

fig. 4 is the embodiment of the utility model provides an assembly process schematic diagram of the totally hidden handle of eccentric shaft structure base.

Description of reference numerals:

10. a handle; 11. a ridge; 12. a circular groove; 13. positioning the clamping groove; 20. a transmission assembly;

30. door and window section bar; 100. a rotating fixed seat; 110. a rib; 120. a disc;

200. a fixed base; 210. a circular base; 211. a groove; 212. positioning the convex column;

220. a circular boss; 221. a ball passage; 230. a central slot; 231. a first gasket;

240. a central bore; 250. an eccentric groove; 251. a second gasket; 260. a fixing hole; 270. connecting holes;

300. a ball positioning ring; 310. a protrusion; 320. a ball bearing; 330. a spring; 400. sealing the cover;

410. folding edges; 500. a gear transmission mechanism; 510. a central transmission rod; 511. a first gear;

512. a first connecting rod; 513. a first inner bore; 520. an eccentric transmission rod; 521. a second gear;

522. a second connecting rod; 523. a second inner bore; 600. a cover plate; 610. avoiding holes;

611. positioning holes; 710. a connecting bolt; 720. pulling and riveting the nut; 730. a machine-meter screw;

740. a first screw; 750. a second screw; 751. a third gasket; 760. and a third screw.

Detailed Description

In order to make the purpose, technical scheme and advantage of the utility model more clearly understand, it is right below to combine the attached drawing and embodiment, the utility model relates to a totally hidden handle of eccentric shaft structure base carries out further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to 4, a fully concealed handle with an eccentric shaft structure base includes: the handle 10 is provided with a mounting opening, the mounting opening comprises a ridge 11 and a circular groove 12 which extend outwards in sequence, and the inner circumferential surface of the circular groove 12 is provided with positioning clamping grooves 13 which are arranged in a surrounding array manner; the transmission assembly 20 comprises a rotary fixed seat 100, a fixed base 200, a ball positioning ring 300, a sealing cover 400 and a gear transmission mechanism 500, wherein the rotary fixed seat 100 is provided with a convex rib 110 matched with a ridge port 11 and a disc 120 extending along the convex rib 110, one side of the ridge port 11 on the handle 10 is provided with a through hole for a machine-meter screw 730 to extend into, the machine-meter screw 730 passes through the through hole to be connected with the convex rib 110, the disc 120, the fixed base 200, the ball positioning ring 300 and the sealing cover 400 are arranged in a circular groove 12, a ball 320 and a spring 330 for abutting against the ball 320 are arranged in the fixed base 200, the ball positioning ring 300 and the sealing cover 400, the ball positioning ring 300 is provided with a protrusion 310 corresponding to the ball 320 and matched with a positioning clamping groove 13, the disc 120, the fixed base 200 and the sealing cover 400 are provided with a central hole 240 which is axially communicated with the central hole 240 and a connecting hole 270 which is arranged around the central hole 240, and the gear transmission mechanism 500 comprises a central transmission rod 510 arranged in the central transmission rod 240 and a transmission rod 510 which is in transmission connection with the central transmission rod 510 and deviates from the central transmission rod in the radial direction Eccentric drive shaft 520 of shaft 510.

The rotary fixing seat 100, the fixed base 200, the ball positioning ring 300 and the sealing cover 400 are arranged at the mounting opening, so that the exposure is avoided, and the stability of the product is improved; the exposed eccentric transmission rod 520 has enough distance between the eccentric center and the connection hole 270, so that the distance is increased, the integral strength is enhanced, and the integral volume is conveniently reduced. The provision of the cover 400 can reduce the gap and friction, avoid noise generated by collision between metals, and improve the smoothness of rotation.

Referring to fig. 1 and 2, the fixing base 200 includes a circular base 210 and a circular boss 220 extending in sequence, the ball positioning ring 300 is sleeved on the circular boss 220, the cover 400 is provided with a folded edge 410 sleeved on the circular boss 220 and abutting against the ball positioning ring 300, a radial ball channel 221 is arranged between the circular boss 220 and the cover 400, a ball 320 and a spring 330 abutting against the ball 320 are arranged in the ball channel 221, and a radial opening of the ball channel 221 is sealed by a protrusion 310 of the ball positioning ring 300. The cover 400 is provided with the folded edge 410, so that the ball retainer ring 300 can be prevented from loosening, the contact area of the cover 400 is increased, and noise and friction are reduced.

Referring to fig. 1 and 2, the central driving rod 510 includes an extended first gear 511 and a first connecting rod 512, the first connecting rod 512 has a first inner hole 513 opening opposite to the first gear 511, the first connecting rod 512 extends into the rib 110 through the central hole 240, a first screw 740 is connected to the first inner hole 513, the eccentric driving rod 520 includes a second gear 521 and a second connecting rod 522, the second connecting rod 522 extends into the cavity of the door/window profile 30 opposite to the circular base 210, the first gear 511 is engaged with the second gear 521 in a driving manner, a central groove 230 is provided in the circular base 210 for accommodating the first gear 511 and axially communicating with the central hole 240, and an eccentric groove 250 disposed at one side of the central groove 230 and receiving the second gear 521, wherein a fixing hole 260 is disposed in the eccentric groove 250, a second inner hole 523 opened to the back of the first gear 511 is disposed on the second connecting rod 522, and a second screw 750 passes through the fixing hole 260 and is engaged with the second inner hole 523.

Referring to fig. 1 and 2, a first spacer 231 adapted to the central transmission rod 510 is disposed in the central slot 230, a second spacer 251 adapted to the second gear 521 is disposed in the eccentric slot 250, and a third spacer 751 is sleeved on the second screw 750 and on a side of the second inner hole 523 opposite to the eccentric slot 250. The provision of the spacers facilitates the rotation of the center drive rod 510 and the eccentric drive rod 520, reducing the axial clearance and reducing the frictional resistance.

Referring to fig. 1 and 2, the center of the connecting hole 270 and the center of the eccentric slot 250 are equidistant from the center of the central hole 240. Further, the connecting holes 270 and the eccentric grooves 250 are arranged around the array of the central holes 240. The device has the advantages of ensuring a proper distance, being uniform in strength and being convenient and simple to process and position. Specifically, the connecting holes 270 are provided in three, and the three connecting holes 270 and the eccentric grooves 250 are circumferentially distributed at ninety degrees. In particular, the cover 400 and the rotary holder 100 are provided with holes corresponding to the fixing holes 260, so as to facilitate the installation of the second screws 750.

Referring to fig. 1 and 2, a cover plate 600 is disposed on a surface of the fixed base 200 opposite to the cover 400, the cover plate 600 is provided with a space-avoiding hole 610 for the second connecting rod 522 to extend out, the connecting hole 270 penetrates through the cover plate 600, and the cover plate 600 and the fixed base 200 are connected to close the central slot 230. The cover plate 600 is provided to ensure the fit between the first gear 511 and the second gear 521, and to reduce the axial clearance.

Referring to fig. 1 and 2, a groove 11 is formed on a side of the circular base 210 facing away from the circular boss 220, and the cover plate 600 is embedded in the groove 11. The stability of the connection of the cover 600 and the circular base 210 is improved.

Referring to fig. 1 and 2, the circular base 210 has a positioning protrusion 212 disposed in the recess 11, and the cover 600 has a positioning hole 611 adapted to the protrusion. The cover plate 600 is prevented from moving due to the transmission mechanism, and the function of the cover plate 600 is ensured.

Referring to fig. 1 and 2, four retainer grooves 13 are provided, and the balls 320 and the protrusions 310 of the ball retainer 300 are fitted into the retainer grooves 13. The four positioning clamping grooves 13 are positioned symmetrically relative to two points, so that the positioning is accurate and the positioning effect is strong.

Generally, the fixed base 200, the rotary fixed seat 100, the ball retainer 300 and the handle 10 are generally made of metal materials, and are generally made of steel, alloy steel or other hard metal materials, so that the strength can be ensured, and the stability and the service life can be ensured. In particular, the cover 400 is made of a non-metal material, preferably plastic or plastic, so as to prevent metal-to-metal contact from generating noise, reduce the gap, and improve the smoothness of rotation.

Generally, referring to fig. 1-2, the central hole 240, the fixing hole 260 and the connecting hole 270 are all stepped counterbores, and the connecting bolt 710, the first screw 740 and the second screw 750 are all countersunk screws. Generally, the connecting screw rod passes through the connecting hole 270 and is connected with a rivet nut 720 arranged in the door window profile 30, and the eccentric driving rod 520 extends into the door window profile 30.

In summary, the eccentric shaft structure base full hidden handle provided by the utility model has the advantages that the rotary fixing base, the fixed base, the ball positioning ring and the sealing cover are arranged at the mounting opening, so that the exposure is avoided, and the stability of the product is improved; the exposed eccentric transmission rod has enough distance between the eccentric center and the connecting hole, so that the distance is increased, the integral strength is enhanced, and the integral volume is conveniently reduced.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides an eccentric shaft structure base is hidden handle entirely which characterized in that includes:

the handle is provided with a mounting opening, the mounting opening comprises a ridge and a circular groove which extend outwards in sequence, and the inner circumferential surface of the circular groove is provided with a positioning clamping groove;

the transmission assembly comprises a rotary fixing seat, a fixing base, a ball positioning ring, a sealing cover and a gear transmission mechanism, wherein the rotary fixing seat is provided with a convex rib matched with the edge opening and a disc extending along the convex rib, one side of the edge opening is provided with a through hole for a machine-meter screw to extend into, the machine-meter screw penetrates through the through hole to be connected with the convex rib, the disc is provided with the fixing base, the ball positioning ring and the sealing cover are arranged in a circular groove, the fixing base, the ball positioning ring and a spring for supporting the ball are assembled in the sealing cover, the ball positioning ring is provided with a bulge corresponding to the ball and matched with the positioning groove, the disc, the fixing base and the sealing cover are provided with a center hole penetrating axially and a connecting hole surrounding the center hole, the gear transmission mechanism comprises a center transmission rod arranged in the center hole and a transmission rod connected with the center transmission rod and a diameter transmission rod An eccentric drive link offset from the central drive link.

2. The handle according to claim 1, wherein the fixed base includes a circular base and a circular boss extending in sequence, the ball retainer is disposed on the circular boss, the cover has a folded edge disposed on the circular boss and abutting against the ball retainer, a radial ball passage is disposed between the circular boss and the cover, a ball and a spring abutting against the ball are disposed in the ball passage, and the protrusion of the ball retainer closes a radial opening of the ball passage.

3. The handle of claim 2, wherein the central transmission rod comprises an extended first gear and a first connecting rod, the first connecting rod is provided with a first inner hole facing away from the opening of the first gear, the first connecting rod passes through the central hole and extends into the rib, a first screw is connected with the first inner hole, the eccentric transmission rod comprises a second gear and a second connecting rod, the second connecting rod extends away from the circular base and extends into the cavity of the door and window profile, the first gear is in transmission engagement with the second gear, the circular base is provided with a central groove for accommodating the first gear and axially communicating with the central hole, and an eccentric groove arranged at one side of the central groove for accommodating the second gear, the eccentric groove is provided with a fixing hole, the second connecting rod is provided with a second inner hole facing away from the opening of the first gear, and a second screw penetrates through the fixing hole to be matched with the second inner hole.

4. The handle of claim 3, wherein a first washer is disposed in the central slot and adapted to the central transmission rod, a second washer is disposed in the eccentric slot and adapted to the second gear, and a third washer is disposed on the second screw and on a side of the second inner hole facing away from the eccentric slot.

5. The eccentric shaft structure base full hidden handle according to claim 3, wherein the center of the connecting hole and the center of the eccentric groove are equidistant from the center of the center hole.

6. The eccentric shaft structure base full hidden handle according to claim 5, wherein the connecting holes and the eccentric grooves are arranged around the central hole array.

7. The handle of claim 3, wherein a cover plate is disposed on a surface of the fixed base opposite to the cover, the cover plate has a clearance hole for the second connecting rod to extend through, the connecting hole penetrates through the cover plate, and the cover plate is connected with the fixed base to close the central slot.

8. The eccentric shaft structure base full hidden handle according to claim 7, wherein a groove is formed on one side of the circular base, which faces away from the circular boss, and the cover plate is embedded in the groove.

9. The handle of claim 8, wherein the circular base has a positioning protrusion in the groove, and the cover has a positioning hole matching with the protrusion.

10. The eccentric shaft structure base full hidden handle according to claim 1, wherein the positioning slots are four, and the balls and the protrusions of the ball positioning ring are matched with the positioning slots.