CN221004454U - Photographic tripod head fixing device and photographic bracket - Google Patents

Abstract

The utility model relates to the technical field of photographic auxiliary equipment, in particular to a photographic tripod head fixing device and a photographic bracket. The photographic tripod head fixing device comprises: a base defining a first empty cavity therein; a hemispherical bowl supported by the base; the mounting seat is fixedly mounted to the hemispherical bowl and is used for being connected with the photographing cradle head; a connection assembly for connecting the hemispherical bowl to the base; the locking component is arranged on the base and is used for releasably locking the hemispherical bowl; the locking assembly comprises a first inclined block and a second inclined block which are arranged in the first empty cavity at intervals, a screw rod penetrating through the base and a ball support arranged outside the bottom end of the hemispherical bowl, the ball support is respectively in butt joint with the first inclined block and the second inclined block, the screw rod is respectively in threaded connection with the first inclined block and the second inclined block, and when the screw rod is rotated, the first inclined block and the second inclined block are close to each other or far away from each other relatively, so that the ball support is driven to axially displace, and the hemispherical bowl is locked or released.

Description

Photographic tripod head fixing device and photographic bracket

Technical Field

The utility model relates to the technical field of photographic auxiliary equipment, in particular to a photographic tripod head fixing device and a photographic bracket.

Background

A camera mount (e.g., tripod) is a mount device for a camera or video camera head that locks the head to the tripod by a fixing means to support the camera or video camera fixed to the head. The existing fixing device is arranged in a hemispherical bowl shape so as to provide a function of rotating the cradle head at multiple angles, and a user can acquire a required shooting angle conveniently. The structure of the tripod fixing device on the current market is more complex, the assembly and the operation are complex, and the stability of the fixing device is difficult to be ensured in the adjusting process.

Disclosure of utility model

The utility model aims to provide a photographic tripod head fixing device and a photographic bracket, which are convenient to assemble and operate and good in stability, so that the technical problems can be solved or improved at least on one aspect.

In order to achieve the above object, an aspect of the present utility model provides a fixing device for a camera cradle head, including: a base defining a first receiving cavity therein; a hemispherical bowl supported by the base; the mounting seat is fixedly mounted to the hemispherical bowl and is used for being connected with a photographing tripod head; a connection assembly for connecting the hemispherical bowl to the base; the locking component is arranged on the base and is used for releasably locking the hemispherical bowl; the locking assembly comprises a first inclined block and a second inclined block which are arranged in the first accommodating cavity at intervals, a screw rod penetrating through the base and a ball support arranged outside the bottom end of the hemispherical bowl, wherein the ball support is respectively in butt joint with the first inclined block and the second inclined block, the screw rod is respectively in threaded connection with the first inclined block and the second inclined block, and when the screw rod is rotated, the first inclined block and the second inclined block are close to each other or far away from each other relatively, so that the ball support is driven to axially displace, and the hemispherical bowl is locked or released.

In some embodiments, the first swash block has a first through hole with a first thread in a peripheral wall thereof, the second swash block has a second through hole with a second thread in a peripheral wall thereof, and the screw has third and fourth threads engaged with the first and second threads, respectively, wherein the threads of the first and second threads are oppositely handed.

In some embodiments, the first inclined block has a first inclined surface, the second inclined block has a second inclined surface, and the ball support has a third inclined surface and a fourth inclined surface respectively matched with the first inclined surface and the second inclined surface, wherein the first inclined surface and the second inclined surface extend towards each other in a direction towards the hemispherical bowl and extend away from each other in a direction away from the hemispherical bowl.

In some embodiments, the ball support comprises an annular body and two protrusions extending from the bottom end of the annular body, wherein a through hole is formed in the center of the annular body, the two protrusions are respectively located at two sides of the through hole, and the third inclined surface and the fourth inclined surface are respectively formed by the surfaces of the two protrusions.

In some embodiments, the connection assembly includes a connection member received in the hemispherical bowl, a fixing member fixedly disposed in the first receiving cavity, and a locking member for connecting the fixing member and the connection member.

In some embodiments, the hemispherical bowl defines a second receiving cavity, the connecting piece is disposed in the second receiving cavity, wherein a lower end surface of the connecting piece is a cambered surface, and the lower end surface is complementary to a bottom wall of the second receiving cavity.

In some embodiments, the fixing member is disposed between the first inclined block and the second inclined block, and a avoidance groove for the screw rod to pass through is formed in the middle of the bottom end of the fixing member.

In some embodiments, the securing member is inverted T-shaped and includes an upper portion and a lower portion connected to each other, the upper portion being adapted to connect with the locking member, the lower portion being located between the first ramp and the second ramp.

In some embodiments, a spring is provided between the fixing member and the connecting member.

Another aspect of the present utility model provides a stand, including a stand bar and any one of the above-mentioned camera head fixing devices, where the camera head fixing device is connected to an upper end of the stand bar.

Compared with the prior art, the embodiment of the utility model has the beneficial effects that: the hemispherical bowl is axially connected with the base through the connecting component, and then the hemispherical bowl is locked or released through the locking component, so that the hemispherical bowl can be fixed or rotated. The hemispherical bowl rotating mechanism is simple in structure and convenient to operate, and can ensure the rotating stability of the hemispherical bowl.

Drawings

Fig. 1 is a schematic view of a photographing bracket according to an embodiment of the utility model.

FIG. 2 is a perspective view of the camera head fixture of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the camera head fixture of FIG. 2;

FIG. 4 is an exploded view of the camera head fixture of FIG. 2;

fig. 5 is an exploded view of the camera head fixing device of fig. 2 at another angle.

Reference numerals: 200. a photographing bracket; 100. a camera holder fixing device; 10. a base; 11. a first accommodation chamber; 12. a third through hole; 20. a hemispherical bowl; 21. a first perforation; 22. a second accommodation chamber; 23. a third accommodation chamber; 30. a connection assembly; 31. a connecting piece; 32. a fixing member; 321. an upper part; 322. a lower part; 3221. an avoidance groove; 33. a locking member; 331. a second head, 332, a second shaft; 34. a spring plate; 40. a mounting base; 50. a locking assembly; 51. a first sloping block; 511. a first inclined surface; 512. a first through hole; 52. a second sloping block; 521. a second inclined surface; 522. a second through hole; 53. a screw; 531. a first head, 532, a first shaft; 5321. a third thread; 5322. a fourth thread; 54. a ball support; 541. a second perforation; 542. a third inclined surface; 543. a fourth inclined surface; 55. and (5) briquetting.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.

As shown in fig. 1, an embodiment of the present utility model provides a photographing bracket 200 for fixing a photographing head so as to support a camera or a photographic equipment connected to the head. The photographing bracket 200 includes a leg 110 and a photographing head fixing device 100. In this embodiment, the number of the legs 110 is plural, specifically three. In other embodiments, the number of feet 110 may be one (i.e., the camera support 200 is a unipod) or more. The camera holder fixing device 100 is connected to the upper ends of the supporting legs 110, and is used for supporting and locking the camera holder. As shown in fig. 2, the outer circumference of the camera head fixing device 100 is provided with a connection hole for being engaged with the leg 110.

As shown in fig. 2 to 5, the photographing head fixing device 100 includes a base 10, a hemispherical bowl 20 supported by the base 10, a connection assembly 30 for connecting the hemispherical bowl 20 to the base 10, a mount 40 fixedly mounted into the hemispherical bowl 20, and a locking assembly 50 mounted to the base 10. The mounting base 40 is used for connecting with a camera cradle head. The locking assembly 50 is used to releasably lock the hemispherical bowl 20. When the locking assembly 50 locks the hemispherical bowl 20, the hemispherical bowl 20 is fixed in position and the mount 40 mounted thereon is also fixed, thereby defining the orientation of the camera head and the camera or camera device mounted thereon. When the locking assembly 50 is released, the hemispherical bowl 20 is released and can rotate, thereby driving the mount 40, the photographing head, and the camera/photographing device to rotate, and at this time, the user can adjust the photographing angle as required.

The base 10 defines a first accommodating chamber 11 therein, and the first accommodating chamber 11 forms an opening at the top end of the base 10. A hemispherical bowl 20 is provided at the top end of the base 10, which is bowl-shaped. The bottom of the hemispherical bowl 20 is extended into the first receiving chamber 11 through the opening, and the periphery thereof is supported by the top end of the base 10. The bottom of the hemispherical bowl 20 is provided with a first perforation 21. The hemispherical bowl 20 is further defined with a second accommodation chamber 22 and a third accommodation chamber 23 in sequence in the axial direction. The second accommodation chamber 22 communicates with the first through hole 21. The third receiving chamber 23 is opened at the top end of the hemispherical bowl 20, and the third receiving chamber 23 has an annular sidewall.

The mounting seat 40 is clamped in the third accommodating cavity 23. The periphery of the mounting seat 40 is abutted against the side wall of the third accommodating cavity 23. The mounting seat 40 of the present embodiment has a disc shape, and is provided with a screw or other member for fixing the pan/tilt head. Preferably, a spacer may also be provided above the mount 40 to reduce wear between the pan-tilt head and the mount 40.

The connection assembly 30 is located in the first accommodation chamber 11. The coupling assembly 30 includes a coupling member 31 received in the second receiving chamber 22 of the hemispherical bowl 20, a fixing member 32 fixedly provided in the first receiving chamber 11 of the base 10, and a locking member 33 for coupling the fixing member 32 and the coupling member 31. The fixing piece 32 is located at the bottom of the first accommodating cavity 11 and is fixedly connected with the bottom wall of the first accommodating cavity 11. And the fixing piece 32 is located below the first perforation 21 of the hemispherical bowl 20, and the connecting piece 31 is disposed above the first perforation 21 in the hemispherical bowl 20, that is, the connecting piece 31 and the fixing piece 32 are respectively located at the inner side and the outer side of the hemispherical bowl 20. The locking member 33 fixedly connects the fixing member 32 with the connecting member 31 through the first penetration hole 21, thereby connecting the hemispherical bowl 20 to the base 10.

The connecting piece 31 is in a block shape, the bottom surface of the connecting piece is an axially symmetrical cambered surface, and the bottom surface of the connecting piece is complementary with the bottom wall of the second accommodating cavity 22 of the hemispherical bowl 20. When the hemispherical bowl 20 is released, it can be rotated up and down or left and right with respect to the connection member 31. The first through hole 21 of the hemispherical bowl 20 has a diameter much larger than the outer diameter of the bolt, allowing the hemispherical bowl 20 to rotate in a direction inclined with respect to the axis of the bolt.

The locking member 33 is a bolt including a second head 331 and a second rod 332 connected to each other. The second rod 332 has an external thread on its periphery, and the upper portion 321 of the fixing member 32 has an internal thread hole matching the external thread. The connector 31 is provided with a through hole. The second rod 332 passes through the through hole of the connecting piece 31 from top to bottom and the first through hole 21 of the hemispherical bowl 20, and then is in threaded connection with the fixing piece 32, so that the hemispherical bowl 20 and the base 10 are connected, and the hemispherical bowl 20 can rotate around the axis of the bolt. The radial dimension of the second head 331 of the bolt is larger than the aperture of the through hole of the connecting piece 31, so that the second head 331 abuts against the upper end face of the connecting piece 31.

Preferably, a spring 34, such as a wave spring, is provided between the second head 331 of the bolt and the upper end surface of the connecting member 31 for setting an initial locking force.

The top end of the fixing member 32 is provided with a screw hole opened axially upward for engagement with a bolt. The fixing member 32 is fixed to the base 10 by screws. In this embodiment, the bottom end of the fixing member 32 is also provided with a threaded hole opened axially downward, the bottom wall of the base 10 is provided with a through hole corresponding to the threaded hole, and a screw is screwed into the threaded hole of the fixing member 32 after passing through the bottom wall of the base 10 via the through hole, so as to fix the fixing member 32 to the base 10.

The locking assembly 50 includes a first and a second swash blocks 51 and 52 disposed in the first receiving chamber 11 of the base 10, a screw 53 penetrating the base 10, and a ball holder 54 disposed outside the bottom end of the hemispherical bowl 20. The screw 53 is screwed with the two bevel blocks. The ball support 54 abuts against the inclined block below the ball support. When the screw 53 is rotated, the first and second inclined blocks 51 and 52 move toward or away from each other, and the ball support 54 is driven to axially displace, thereby locking or releasing the hemispherical suspension 20.

Specifically, the first and second inclined blocks 51 and 52 are disposed at opposite intervals. As shown in fig. 5, the first and second inclined blocks 51 and 52 are respectively block-shaped and each have a first inclined surface 511 and a second inclined surface 521 which face upward. In this embodiment, the first inclined surface 511 and the second inclined surface 521 extend toward each other in a direction toward the bowl 20 and extend away from each other in a direction away from the bowl 20. The bottom of the ball holder 54 has a third inclined surface 542 and a fourth inclined surface 543 which are respectively engaged with the first inclined surface 511 and the second inclined surface 521. The first inclined surface 511 and the third inclined surface 542 are in contact with each other and are complementary to each other, and the second inclined surface 521 and the fourth inclined surface 543 are in contact with each other and are complementary to each other.

It is understood that in other embodiments, the first inclined surface 511 and the second inclined surface 521 may be oriented in other directions, so long as the first inclined surface 511 and the third inclined surface 542 and the second inclined surface 521 and the fourth inclined surface 543 cooperate with each other when the screw 53 is rotated, so as to axially displace the ball holder 54.

The first and second inclined blocks 51 and 52 have first and second through holes 512 and 522, respectively, penetrating in the same direction, and the first and second through holes 512 and 522 are aligned in the direction. The inner walls of the first and second through holes 512 and 522 are provided with first and second threads (not shown), respectively. The threads of the first thread and the second thread are oppositely threaded.

Screw 53 includes a first head 531 and a first shaft 532 that are connected to each other. The outer periphery of the first rod 532 is provided with a third thread 5321 and a fourth thread 5322 in order in the axial direction. The third thread 5321 is distal to the first head 531 and the fourth thread 5322 is proximal to the first head 531. The third thread 5321 is for engagement with the first thread of the first swash block 51 and the fourth thread 5322 is for engagement with the second thread of the second swash block 52. That is, the thread directions of the third thread 5321 and the fourth thread 5322 are also opposite. Preferably, the first head 531 of the screw 53 is provided with a knob to facilitate rotation of the screw 53.

The peripheral wall on one side of the base 10 is provided with a third through hole 12 penetrating radially, which communicates with the first accommodation chamber 11. The first rod 532 of the screw 53 is sequentially passed through the third through hole 12 of the base 10, the second through hole 522 of the second inclined block 52, and the first through hole 512 of the first inclined block 51, so that the third thread 5321 is engaged with the first thread, and the fourth thread 5322 is engaged with the second thread, that is, the connection of the base 10 with the screw 53 through the second inclined block 52 is achieved. It will be appreciated that since first shank 532 is required to pass through second throughbore 522 of second swash block 52 and then through first throughbore 512 of first swash block 51, the outer diameter of third thread 5321 is required to be smaller than the outer diameter of fourth thread 5322.

Since the screw directions of the first screw thread and the second screw thread are opposite, the screw directions of the third screw thread 5321 and the fourth screw thread 5322 are also opposite, and when the screw 53 is rotated, the two inclined blocks approach each other or move away from each other. Because the third inclined surface 542 and the fourth inclined surface 543 of the ball support 54 are respectively matched with the first inclined surface 511 and the second inclined surface 521, when the first inclined block 51 and the second inclined block 52 are close to each other or far away from each other, the ball support 54 is driven to axially displace, so that the ball support 54 applies force to clamp or release the half ball bowl 20. In this embodiment, when the screw 53 rotates clockwise, the first and second swash blocks 51 and 52 are relatively close together at the same time. And vice versa. Both axial and radial refer herein to the axial and radial directions of the base 10.

In this embodiment, the fixing member 32 is disposed in the middle of the two inclined blocks. The middle of the bottom end of the fixing member 32 is provided with a avoiding groove 3221 for the screw 53 to pass through. Specifically, the securing member 32 is generally inverted T-shaped. Including a narrower upper portion 321 and a wider lower portion 322. Screw holes screw-coupled with the locking member 33 are provided at the upper portion 321 and extend upwardly to be opened. The lower portion 322 of the securing member 32 is located between the two ramp blocks. The escape groove 3221 is provided in the center of the lower portion 322. After the screw 53 passes through the two bevel blocks and the avoidance groove 3221, rotation of the knob may cause the first thread to engage the third thread 5321 and the second thread to engage the fourth thread 5322. Thereby locking the hemispherical bowl 20 to the base 10 through the coupling assembly 30 and the locking assembly 50.

As shown in fig. 5, the ball rest 54 includes an annular body and two protrusions extending from the bottom end of the annular body. The annular body has a second bore 541 axially therethrough in the center. The two protrusions are located at both sides of the second perforation 541, respectively. The third inclined surface 542 and the fourth inclined surface 543 are respectively formed by two convex surfaces. The upper portion 321 of the securing member 32 passes through the second aperture 541 of the ball holder 54 and connects with the connecting member 31 within the hemispherical bowl 20. Preferably, the upper end surface of the ball support 54 is horizontal, and a pressing block 55 can be arranged between the ball support 54 and the hemispherical bowl 20. The pressing block 55 is substantially circular, has a lower end surface which is horizontal and abuts against an upper end surface of the ball holder 54, and has an upper end surface which is arc-shaped and is complementary to the bottom end outer peripheral surface of the hemispherical bowl 20. Preferably, the contact surfaces of the connecting piece 31, the pressing block 55 and the hemispherical bowl 20 are smooth so as to facilitate the rotation of the hemispherical bowl 20. In other embodiments, the ball support 54 and the press block 55 may be integrally provided.

Since the hemispherical bowl 20 is spherical, the inner and outer diameters thereof are uniform in all directions, the connecting member 31 and the pressing block 55 are respectively abutted against the inner and outer sides of the hemispherical bowl 20 and are respectively complementary to the inner and outer circumferential surfaces of the hemispherical bowl 20, and when the hemispherical bowl 20 rotates in a direction inclined with respect to the axis of the bolt, the connecting member 31 and the pressing block 55 are not displaced. I.e., without displacing the ball rest 54 and the swash block. Therefore, when the hemispherical bowl 20 is released, the direction of the hemispherical bowl can be independently adjusted, and the operation is convenient.

As shown in fig. 3, when the screw 53 rotates to lock the hemispherical bowl 20, the hemispherical bowl 20 is screwed to the fixing member 32 by the locking member 33, the periphery of the hemispherical bowl 20 abuts against the top end of the base 10, the bottom end of the hemispherical bowl 20 abuts against the inclined block by the pressing block 55 and the ball support 54, and the stability of the hemispherical bowl 20 when locked can be ensured by the multidirectional clamping effect. Compared with the lateral clamping mode of the traditional locking structure, the hemispherical bowl 20 of the embodiment can rotate in multiple directions, and is good in stability. Preferably, the weight of both the press 55 and the fixture 32 is such as to further enhance stability of the locking of the bowl 20 and base 10.

The assembling and operating steps of the photographing cradle head fixing device 100 of the present embodiment are as follows:

The ball support 54 and the pressing block 55 are sequentially penetrated through the upper portion 321 of the fixing piece 32, the locking piece 33 penetrates through the elastic piece 34, the fixing piece 32 and the hemispherical bowl 20 from top to bottom, and then the locking piece 33 is in threaded connection with the upper portion 321 of the fixing piece 32, so that the hemispherical bowl 20 is fixed on the base 10;

The mounting seat 40 is clamped in the third accommodating cavity 23 of the hemispherical bowl 20;

Placing the hemispherical bowl 20 together with the mounting seat 40 and the fixing piece 32 on the base 10, and sequentially passing the screw 53 through the third through hole 12 of the base 10, the second through hole 522 of the second inclined block 52, the avoidance groove 3221 of the fixing piece 32 and the first through hole 512 of the first inclined block 51;

adjusting the hemispherical bowl 20 to a desired angle;

The screw 53 is rotated to engage the first and second ramps 51, 52, respectively, thereby locking the hemispherical bowl 20.

When the hemispherical bowl 20 needs to be released, the screw 53 is rotated in the direction opposite to the previous step, and the first inclined block 51 and the second inclined block 52 are separated from each other, so that the ball support 54 and the pressing block 55 release the contact of the hemispherical bowl 20, and at this time, the hemispherical bowl 20 can rotate above the base 10.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. A photographic head fixing device, comprising:

A base defining a first receiving cavity therein;

a hemispherical bowl supported by the base;

the mounting seat is fixedly mounted to the hemispherical bowl and is used for being connected with a photographing tripod head;

A connection assembly for connecting the hemispherical bowl to the base;

the locking component is arranged on the base and is used for releasably locking the hemispherical bowl; the locking assembly comprises a first inclined block and a second inclined block which are arranged in the first accommodating cavity at intervals, a screw rod penetrating through the base and a ball support arranged outside the bottom end of the hemispherical bowl, wherein the ball support is respectively in butt joint with the first inclined block and the second inclined block, the screw rod is respectively in threaded connection with the first inclined block and the second inclined block, and when the screw rod is rotated, the first inclined block and the second inclined block are close to each other or far away from each other relatively, so that the ball support is driven to axially displace, and the hemispherical bowl is locked or released.

2. The photographing head fixing apparatus of claim 1, wherein the first inclined block has a first through hole, a circumferential wall of the first through hole has a first thread, the second inclined block has a second through hole, a circumferential wall of the second through hole has a second thread, and the screw has a third thread and a fourth thread engaged with the first thread and the second thread, respectively, wherein the threads of the first thread and the second thread are opposite in rotation direction.

3. The photographing tripod head fixing apparatus of claim 1, wherein said first inclined block has a first inclined surface, said second inclined block has a second inclined surface, and said ball holder has a third inclined surface and a fourth inclined surface respectively engaged with said first inclined surface and said second inclined surface, wherein said first inclined surface and said second inclined surface extend toward each other in a direction toward said bowl and extend away from each other in a direction away from said bowl.

4. A camera head fixing device according to claim 3, wherein the ball holder comprises an annular body and two protrusions extending from the bottom end of the annular body, a through hole is formed in the center of the annular body, the two protrusions are located on two sides of the through hole respectively, and the third inclined surface and the fourth inclined surface are formed by the surfaces of the two protrusions respectively.

5. The photographing tripod head fixing apparatus of any one of claims 1 to 4, wherein said connection assembly comprises a connection member accommodated in said hemispherical bowl, a fixing member fixedly provided in said first accommodation chamber, and a locking member for connecting said fixing member and said connection member.

6. The photographing tripod head fixing apparatus of claim 5, wherein said hemispherical bowl defines a second accommodation cavity, said connecting member is disposed in said second accommodation cavity, wherein a lower end surface of said connecting member is a cambered surface, and said lower end surface is complementary to a bottom wall of said second accommodation cavity.

7. The photographing tripod head fixing apparatus of claim 5, wherein said fixing member is disposed between said first and second inclined blocks, and a recess for passing said screw is provided in the middle of the bottom end of said fixing member.

8. The photographing head fixing apparatus of claim 7, wherein the fixing member has an inverted T shape including an upper portion and a lower portion connected to each other, the upper portion being adapted to be connected to the locking member, the lower portion being located between the first and second inclined blocks.

9. The camera head fixing device according to claim 5, wherein a spring is provided between the fixing member and the connecting member.

10. A photographic bracket comprising a foot and a photographic head mount according to any one of claims 1-9, the photographic head mount being attached to an upper end of the foot.