CN201539671U

CN201539671U - Screw member for camera

Info

Publication number: CN201539671U
Application number: CN2009202603154U
Authority: CN
Inventors: 沈伟宏
Original assignee: GIOTTO'S INDUSTRIAL (SHENZHEN) Inc
Current assignee: GIOTTO'S INDUSTRIAL (SHENZHEN) Inc
Priority date: 2009-11-10
Filing date: 2009-11-10
Publication date: 2010-08-04
Anticipated expiration: 2019-11-10
Also published as: HK1142765A2

Abstract

A screw member for a camera comprises a chuck, a screw, a pin and a rotating plate. The screw comprises a screw cap portion and a thread portion; the chuck is clamped on the screw cap portion of the screw; the rotating plate is semicircular and is provided with a pin hole on the end; the pin passes though the pin hole so that the rotating plate is rotatably installed on the screw cap portion of the screw; the screw member also comprises a spring sheet which is disposed between the chuck and the screw cap portion; the spring sheet has an elastic portion; the position of the elastic portion is corresponding to that of the end of the rotating plate; the elastic portion could provide the elastic force to the end face and the side face on the end portion of the rotating plate so as to respectively position the rotating plate at a position where the end face is perpendicular to the axis of the screw and at a position where the end face is parallel to the axis; and the rotating plate is folded to a horizontal position and fixed in a fast-assembling plate or the rotating plate is overturned to a vertical position and locked through the action of the elastic portion to the end face or the side face on the end portion of the rotating plate.

Description

The screw assembly that is used for camera

[technical field]

The utility model relates to the screw assembly that uses on the photographic goods, relates in particular to a kind of screw assembly that is used on the camera.

[background technique]

The screw structural of existing phase motor spindle is generally the form of chassis profile groove, works as instrument with coin then and changes tight.Perhaps pass the chassis and add flap and form the flap that to swing, pull out the flap twisting when needing to rotate, after being used to complete flap put into the fast-assembling plate with pin.

Yet often joining of pin tends to occur too pine or too tight problem.Pin itself is pine or used pine too of a specified duration too, and just fixedly flap lies low in the fast-assembling plate, protrudes outside the fast-assembling plate and can hang down naturally because of the weight of flap, and the flap of protrusion can bump against the bottom of The Cloud Terrace seat and influences and pack in the time of like this in the The Cloud Terrace seat of packing into.If it is too tight that pin is beaten, in the time of locking camera, being difficult to lie low pulls out at the flap of fast-assembling plate easily, uses very inconvenient.

Why existing camera screw the problems referred to above can occur, and its main cause is that flap only cooperates with pin thereby can't can't be positioned at special position to be caused.

[model utility content]

Based on this, be necessary to provide a kind of camera screw that can locate flap at predeterminated position.

A kind of screw assembly that is used for camera comprises chuck, screw, pin and flap.Described screw comprises nut portion and spiro tooth part, described chuck fixes in the nut portion of described screw, described flap is semi-round ring shape and its end offers pin-and-hole, and described pin passes described pin-and-hole described flap is installed in rotation in the mouth nut portion of described screw.Described screw assembly also comprises shell fragment, and described shell fragment is arranged between described chuck and the described nut portion.Described shell fragment has elastic part, the position of described elastic part is corresponding with the position of the end of described flap, described elastic part can provide the end face and the side of the end that elastic force acts on described flap respectively, respectively described flap is positioned at the position that end face is parallel to described axis perpendicular to the position and the described end face of the axis of described screw.

Preferably, described elastic part is a circular arch, and the top of described dome exceeds the main body of described shell fragment, described dome can provide elastic force to described flap end towards described pin.

Preferably, described shell fragment main body is ring, the described spiro tooth part of described screw can pass the shell fragment mesopore of described shell fragment, described circular arch is arranged on the described shell fragment main body and along its radial symmetric, radial distance between the described circular arch is slightly larger than the diameter of described nut portion, locates the diameter that radial distance between the outer other parts of circular arch is slightly less than described nut portion on the described shell fragment main body.

Preferably, be formed with concave surface on the described chuck, the external diameter of described shell fragment is slightly less than the diameter of described concave surface.

Preferably, be formed with a pair of barb on the described chuck, form a pair of breach on the described shell fragment, described barb can be rushed across corresponding described breach respectively.

Preferably, be formed with a pair of side channel in the described nut portion of described screw, can be hooked in the corresponding described side channel for described barb.

By end face or the side action of elastic part to the end of flap is set, can conveniently the flap folding be lain low and be fixed in the fast-assembling plate or flap is pulled and opened vertical orientation and do not touch out with shell fragment elastic force, make the convenient flap that rotates lock camera.

[description of drawings]

Fig. 1 is the decomposition view of a preferred embodiment screw assembly of the present utility model and The Cloud Terrace seat and fast-assembling plate;

Fig. 2 is the decomposition view of another angle of screw assembly among preferred embodiment Fig. 1 of the present utility model and The Cloud Terrace seat and fast-assembling plate;

Fig. 3 A is the three-dimensional view after the assembling of the screw assembly among Fig. 1;

Fig. 3 B is the three-dimensional view of another angle after the assembling of the screw assembly among Fig. 1;

Fig. 3 C is the plane view after the assembling of the screw assembly among Fig. 1;

Fig. 4 A is the plane view of screw assembly under the flap erectility among Fig. 3;

Fig. 4 B is that screw assembly among Fig. 4 A is along the sectional view of its axial section;

Fig. 5 A is the plane view of screw assembly under the flap lying status among Fig. 3;

Fig. 5 B is that screw assembly among Fig. 5 A is along the sectional view of its axial section;

Fig. 5 C is that screw assembly among Fig. 5 A is along the sectional view of its another axial section;

Fig. 6 A is the plane view of screw assembly under the flap threshold state among Fig. 3;

Fig. 6 B is that screw assembly among Fig. 6 A is along the sectional view of its axial section.

[embodiment]

Please refer to Fig. 1 and Fig. 2, it is the decomposition view of a preferred embodiment screw assembly 1 of the present utility model and The Cloud Terrace seat 2 and fast-assembling plate 3.Screw assembly 1 with install to camera (figure does not show) after fast-assembling plate 3 cooperates on, camera can be installed on the The Cloud Terrace seat 2 on the tripod (figure does not show).

As shown in Fig. 1 and Fig. 2, screw assembly 1 comprises plasticity chuck 10, shell fragment 20, screw 30, pin 40 and flap 50.Plasticity chuck 10, shell fragment 20, screw 30 are stacked in turn, and flap 50 is installed on the screw 30 by pin 40.

Plasticity chuck 10 is disc, protrudes out a pair of barb 104 from chuck main body 102 to a side.On chuck main body 102, outwards sink to form concave surface 106 from barb 104 places.The central authorities of chuck main body 102 define a chuck mesopore 108.

Shell fragment 20 also is disc, and its external diameter is slightly less than concave surface 106 diameters of plasticity chuck 10.Shell fragment main body 202 central authorities offer shell fragment mesopore 204, and the position of shell fragment mesopore 204 is corresponding with the position of chuck mesopore 108.Barb 104 corresponding sections with plasticity chuck 10 on the shell fragment main body 202 are formed with a pair of breach 206, make barb 104 pass shell fragment 20 by this breach 206.The bilateral symmetry of breach 206 is formed with a pair of circular arch 208, and circular arch 208 is towards the direction projection of flap 50, and the top of circular arch 208 protrudes from shell fragment main body 202.The circular arch 208 of shell fragment 20 is arranged on the described shell fragment main body 202 and along its radial symmetric.

Screw 30 comprises nut portion 302 and spiro tooth part 304.The diameter of nut portion 302 is slightly less than the diameter of the concave surface 106 of chuck 10, and the part of nut portion 302 can be housed in the concave surface 106 formed depressions.Radial distance between the circular arch 208 of shell fragment 20 is slightly larger than the diameter of nut portion 302, radial distance between the other parts on the shell fragment main body 202 except that circular arch 208 is slightly less than the diameter of described nut portion, thereby the part on the shell fragment main body 202 except that circular arch 208 can be sandwiched between the concave surface 106 and nut portion 302 of chuck 10, so that shell fragment 20 is clamped between chuck 10 and the nut portion 302.A profile groove 306 is offered in the exterior edge face of nut portion 302, passes through this screw 30 of other instrument turn for the user.Offer a pair of pin-and-hole 308 on the side cylndrical surface of nut portion 302, the position, top of the circular arch 208 on the position of pin-and-hole 308 and the shell fragment 20 is corresponding.Also offer a pair of side channel 309 on the side cylndrical surface of nut portion 302, the position of side channel 309 is corresponding with the position of barb 104 and breach 206, so that barb 104 passes on the buckle face 310 in the side channel 309 that can be hooked on behind the breach 206 in the nut portion 302, form an integral body thereby chuck 10, shell fragment 20 and screw 30 these threes are interfixed.

Flap 50 has the flap main body 502 that is the semicircle arch, and the internal diameter of flap main body 502 is slightly larger than the external diameter of the nut portion 302 of screw 30.Place, two end part near flap main body 502 offers pin-and-hole 504 respectively, and the planar surface that centers on pin-and-hole 504 is defined as side 506 and end face 508 respectively.The position of the pin-and-hole 308 on the position of pin-and-hole 504 and the screw 30 is corresponding, and the two aperture is suitable, pass pin-and-hole 504 in turn and pin-and-hole 308 can be rotatably fixed to flap in the nut portion 302 of screw 30 by selling 40, be assembled into the screw assembly 1 shown in Fig. 3 A to Fig. 3 B.The semi circular surface of flap 50 outside is provided with short slot 509 in addition, when flap 50 foldings lie low when being fixed in the fast-assembling plate 3, thereby available nail fastens this short slot 509 flap 50 is pulled out easily.

Shown in Fig. 4 A to Fig. 4 B for the flap 50 of screw assembly 1 is in view under the erectility, the erectility here is meant the end face 508 of flap 50 and the straight approximately state of axis of screw 30.When flap 50 is in erectility, flap 50 turn to the position vertical with chuck 10 and with the axis coplane of screw 30, rotate flap 50 this moment and can drive screw 30 and lock or unscrew screw 30 around its rotational.Under this state, the end face 508 of flap 50 is over against the circular arch 208 of shell fragment 20.Because of the height of circular arch 208 thickness greater than shell fragment main body 202, its end face 508 elastic force that can offer flap 50 are so that flap 50 is positioned in erectility.

Shown in Fig. 5 A to Fig. 5 C for the flap 50 of screw assembly 1 is in view under the lying status, the lying status here is meant the end face 508 of flap 50 and the state of the parallel axes of screw 30.When flap 50 was in lying status, flap 50 can be collected in the fast-assembling plate 3.Under this state, the circular arch 208 of the side of flap 50 506 and shell fragment 20 over against.Because of the elastic force of circular arch 208 side that offers 506, make flap 50 remain on lying status, can not hang down naturally because of the own wt of flap 50.

Shown in Fig. 6 A to Fig. 6 B for the flap 50 of screw assembly 1 is in view under the threshold state, the threshold state here is meant the end face 508 of flap 50 and the state of the axis angle at 45 approximately of screw 30.It when flap 50 is in threshold state the critical peak of tightness, the effect of spending the side 506 of peak palintrope 50 or end face 508 and the circular arch 208 of shell fragment 20 can make flap 50 keep foldings to lie low automatically and open uprightly and not and can swing arbitrarily naturally, well with flap 50 two location positioning.

The above embodiment has only expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims

1. screw assembly that is used for camera, comprise chuck, screw, pin and flap, described screw comprises nut portion and spiro tooth part, described chuck fixes in the nut portion of described screw, described flap is semi-round ring shape and its end offers pin-and-hole, described pin passes described pin-and-hole and described flap is installed in rotation in the mouth nut portion of described screw, it is characterized in that, described screw assembly also comprises shell fragment, described shell fragment is arranged between described chuck and the described nut portion, described shell fragment has elastic part, the position of described elastic part is corresponding with the position of the end of described flap, described elastic part can provide the end face and the side of the end that elastic force acts on described flap respectively, respectively described flap is positioned at the position that end face is parallel to described axis perpendicular to the position and the described end face of the axis of described screw.

2. screw assembly according to claim 1 is characterized in that, described elastic part is a circular arch, and the top of described dome exceeds the main body of described shell fragment, described dome can provide elastic force to described flap end towards described pin.

3. screw assembly according to claim 2, it is characterized in that, described shell fragment main body is ring, the described spiro tooth part of described screw can pass the shell fragment mesopore of described shell fragment, described circular arch is arranged on the described shell fragment main body and along its radial symmetric, radial distance between the described circular arch is slightly larger than the diameter of described nut portion, locates the diameter that radial distance between the outer other parts of circular arch is slightly less than described nut portion on the described shell fragment main body.

4. screw assembly according to claim 3 is characterized in that, is formed with concave surface on the described chuck, and the external diameter of described shell fragment is slightly less than the diameter of described concave surface.

5. according to each described screw assembly in the claim 1 to 4, it is characterized in that, be formed with a pair of barb on the described chuck, form a pair of breach on the described shell fragment, described barb can be rushed across corresponding described breach respectively.

6. screw assembly according to claim 5 is characterized in that, is formed with a pair of side channel in the described nut portion of described screw, can be hooked in the corresponding described side channel for described barb.