CN2629510Y - Parasol bending mechanism capable of shortening knob structure - Google Patents
Parasol bending mechanism capable of shortening knob structure Download PDFInfo
- Publication number
- CN2629510Y CN2629510Y CN 03255454 CN03255454U CN2629510Y CN 2629510 Y CN2629510 Y CN 2629510Y CN 03255454 CN03255454 CN 03255454 CN 03255454 U CN03255454 U CN 03255454U CN 2629510 Y CN2629510 Y CN 2629510Y
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- China
- Prior art keywords
- knob
- central gear
- screw
- gear
- transmission device
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- Expired - Lifetime
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Abstract
The utility model relates to a bending mechanism area of technology in parasol, particularly a bending mechanism of knob operation-like. The bending mechanism is mainly made of a knob thrust device, a transmission device and a bending component. The knob thrust device comprises a knob installed on the medium knot and connecting to the crank component's outer covering. The knob inner wall is provided with an internal tooth, and the internal tooth constitutes a planetary gear transmission system with a central gear arranged in the middle of the knob and at least a small gear which simultaneously meshes with the central gear and the knob internal tooth. The small gear is rotatablely installed on a bracket, and the central gear and the transmission device are connected together. Because the knob changes the thread transmission in the existing technology to the gear drive, the knob can not be limited by the bending travel schedule, and the length can be reduced greatly. Moreover, using the gear and the ball screw drive brings steady revolution and small friction force, and is favorable to the parasol function of bending, locating and replacing.
Description
Technical field
The utility model relates to and bends towards mechanism's technical field in the parasols, especially a kind of knob-operated bend towards mechanism.
Background technology
The parasols of prior art bends towards mechanism except the structure that adopts conventional hand crank type mode of operation, also having a kind of is the mechanism that bends towards of knob driving structure, this mechanism rotates under external force by a knob, drive the reciprocating motion that associated part is done oscilaltion by this knob, bend towards the function that bends towards the location and reset that parts realize bending towards mechanism by the associated part interlock that pumps.Wherein this knob inside is the screw type teeth groove, the screw of the associated components that is mated for doing along teeth groove to rise or descend.Therefore the length of this knob is generally longer, otherwise move distance is not enough, and the maximum that does not satisfy parasols bends towards angle.
Summary of the invention
Technical problem to be solved in the utility model provides the parasols that a kind of knob length can not be subjected to mechanics limit and can shorten knob structure and bends towards mechanism.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this parasols that can shorten knob structure bends towards mechanism, comprise that one is installed in the knob thrust unit on the middle joint, the work that drives by this knob thrust unit rise or descend reciprocating transmission device and with the parts that bend towards of transmission device interlock, it is characterized in that described knob thrust unit comprises that one is installed in the knob that middle joint is gone up and the rocking-handle assembly shell is connected, the knob inwall is processed with internal tooth, its be positioned at knob middle part a central gear and at least one pinion that is meshed with this central gear and knob internal tooth simultaneously constitute delegation's star wheels transport mechanism, described pinion is rotatably installed on the support, and described central gear links to each other with described transmission device.
Described transmission device can be made of the large and small screw rod of a pair of cooperation transmission and the sleeve pipe that is connected the small screw lower end, and the upper end of big screw rod is connected with the described parts that bend towards, and described sleeve pipe is connected with described central gear.
Described support can comprise that axially at a distance of the upper and lower support of certain distance, last lower carriage all is flange-like, and the unthreaded hole and the screw that match are arranged on it, and described pinion is between between the upper and lower support and be placed on the screw that connects lower carriage.
Compared with prior art, advantage of the present utility model is: because knob changes gear drive into by the screw thread transmission of prior art, so it can not bent towards the restriction of stroke, and length can reduce greatly; Adopt gear and ball screw transmission in addition, running is steady, frictional force is little, helps the function that bends towards, locatees and reset of parasols.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A schematic diagram of Fig. 1.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Shown in Fig. 1-2, the parasols that originally can shorten knob structure bends towards mechanism and mainly constitutes by bending towards parts 1, transmission device 2 and knob thrust unit 3, wherein bend towards parts 1 and mainly include and bend towards and bend towards connecting rod, its structure is same as the prior art, is not described in detail at this.
Transmission device 1 mainly is made of large and small screw rod 21,23, ball 22 and sleeve pipe 24, and wherein big screw rod 21 is interior rolling screw, in have the groove of placing ball 22, ball 22 is placed in the groove, cooperates with small screw 23 transmissions.The upper end of big screw rod 21 with bend towards parts 1 and be connected.Small screw 23 is the outer rolling screw rod, and its upper end screws in is equipped with in the big screw rod 21 of ball 22, and the central gear 33 in lower end and the knob thrust unit 3 is fixed together.
Knob thrust unit 3 mainly is made of a knob 31, a central gear 33, three pinions 34 and support 32, on the joint 4, is assembled together with rocking-handle assembly 5 shells 51 during wherein knob 31 is enclosed within.The contour structures of knob 31 and the knob of prior art are basic identical, but length is shorter, less than original 1/2nd, inner by original internal thread change into can with the internal tooth 311 of pinion 34 engagements.Support 22 is positioned at knob 31 inside, is used for installing three pinions 34 and central gear 33, and it is connected and composed by axial upper and lower support 321,322 at a distance of certain distance, and two stands 321,322 is all made flange-like, and the unthreaded hole and the screw that match are arranged on it.Three pinions 34 are evenly distributed between the upper and lower support 321,322, and are placed in respectively on the screw 37 that connects last lower carriage.Screw 37 has not only play a part to connect goes up lower carriage 321,322, has also played gear shaft simultaneously.Central gear 33 is contained in the centre of three pinions 34, and meshes with three pinions 34.Central gear 33 has protruding up and down axle, be inserted in respectively in the stomidium of lower carriage 321,322, and the stomidium of support all is equipped with the bearing 35,36 that is rotatably assorted with protruding axle.Constitute delegation's star wheels transport mechanism by knob 31, three pinions 34 and central gear 33, drive three pinions 34 and central gear 33 rotates by knob 31.
During assembling,, load onto bearing 36 and central gear 33 thereon, then sleeve pipe 24 is inserted in the centre bore 331 of central gear 33, sleeve pipe 24 and central gear 33 are connected in the upper end hole of lower carriage 36 with straight pin 38 earlier based on lower carriage 322.This straight pin 38 neither can be lost, and has certain dynamic role again, not only make the small screw 23 above the sleeve pipe 24 have certain clearance to regulate, and loading and unloading easily.Then on lower carriage 322, put three pinions 34, upper bracket 321 and bearing 35, will go up lower carriage 321,322 with several pieces of screws 37 then and couple together, simultaneously also with three pinions 34 respectively sky be enclosed within spiral shell 37 and nail on.Then the lower end of small screw 23 is connected with sleeve pipe 24 with straight pin, the upper end screws on the big screw rod 21 that ball 22 is housed again, and on the top of screw rod 21 greatly with rivet and bend towards parts 1 and be fixed together.To pack into together in the upper and middle section 41 with upper-part at last, upper and middle section 41 will be fixed on the upper bracket 321 with screw; With in above-mentioned a whole set of middle down joint 42 of packing into that assembles, be assembled together again with rocking-handle assembly 5; Be inserted in knob 31 at last, knob 31 lower ends buckle in the shell 51, with screw shell are fixed getting final product again.
When turning knob 31, because of knob 31 has internal tooth 311, driving three pinions 34 by internal tooth 311 rotates, driving central gear 33 by three pinions 34 again rotates, and central gear 33 and sleeve pipe 24 link together, can drive moving up and down of big screw rod 21 by the rotation of small screw 23 like this, and then reach the function that bends towards inclination automatically.This structure can make knob 31 not be subjected to axial force, and axial force has all been transferred to above the central gear 33, and therefore rocking-handle assembly shell 51 of the present utility model need have certain intensity.
The foregoing description is only for the usefulness that the utility model is described, and be not to be to restriction of the present utility model, relevant those skilled in the art, under the situation that does not break away from spirit and scope of the present utility model, can also make various variations and modification, so all technical schemes that are equal to also should belong to category of the present utility model.
Claims (4)
1, a kind of parasols that shortens knob structure bends towards mechanism, comprise that one is installed in the knob thrust unit (3) on the middle joint (4), the work that drives by this knob thrust unit (3) rise or descend reciprocating transmission device (2) and with the transmission device interlock bend towards parts (1), it is characterized in that: described knob thrust unit (3) comprises that one is installed in the knob (31) that middle joint is gone up and rocking-handle assembly shell (51) is connected, the knob inwall is processed with internal tooth (311), its be positioned at knob middle part a central gear (33) and at least one pinion (34) formation delegation star wheels transport mechanism that is meshed with this central gear (33) and knob internal tooth (311) simultaneously, described pinion (34) is rotatably installed on the support (32), and described central gear (33) links to each other with described transmission device (2).
2, parasols as claimed in claim 1 bends towards mechanism, it is characterized in that: described transmission device (2) comprises the large and small screw rod (21,23) of a pair of cooperation transmission, the upper end of big screw rod (21) is connected with the described parts (1) that bend towards, and the lower end of small screw (23) is connected with described central gear (33) by a sleeve pipe (24).
3, parasols as claimed in claim 1 or 2 bends towards mechanism, it is characterized in that: described support (32) comprises axially the upper and lower support (321,322) of certain distance apart, last lower carriage all is flange-like, the unthreaded hole and the screw that match are arranged on it, and described pinion (34) is between between the upper and lower support and be placed on the screw (37) that connect to go up lower carriage.
4, parasols as claimed in claim 2 bends towards mechanism, it is characterized in that: described small screw (23) is the outer rolling screw rod, and big screw rod (21) is interior rolling screw, is provided with ball (22) between two screw rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255454 CN2629510Y (en) | 2003-07-10 | 2003-07-10 | Parasol bending mechanism capable of shortening knob structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255454 CN2629510Y (en) | 2003-07-10 | 2003-07-10 | Parasol bending mechanism capable of shortening knob structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2629510Y true CN2629510Y (en) | 2004-08-04 |
Family
ID=34294960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255454 Expired - Lifetime CN2629510Y (en) | 2003-07-10 | 2003-07-10 | Parasol bending mechanism capable of shortening knob structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2629510Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006000136A1 (en) * | 2004-06-24 | 2006-01-05 | Zhunan Ma | A rotating apparatus for a rotatable canopy |
| US11779089B2 (en) | 2020-03-30 | 2023-10-10 | ZHUN-AN Ma | Shade structure assemblies and components |
-
2003
- 2003-07-10 CN CN 03255454 patent/CN2629510Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006000136A1 (en) * | 2004-06-24 | 2006-01-05 | Zhunan Ma | A rotating apparatus for a rotatable canopy |
| US11779089B2 (en) | 2020-03-30 | 2023-10-10 | ZHUN-AN Ma | Shade structure assemblies and components |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130710 Granted publication date: 20040804 |