CN218671270U - Clamping device and shooting auxiliary device - Google Patents

Abstract

The utility model belongs to the technical field of clamping and relates to a clamping device and a shooting auxiliary device, which comprises a supporting seat, a first clamping seat, a second clamping seat, a sliding seat and a stretching assembly, wherein the supporting seat is provided with a mounting groove along the extending direction; the first clamping seat and the second clamping seat are oppositely arranged on the supporting seat and form a clamping space together with the supporting seat; the sliding seat is inserted in the mounting groove, and a slide way for the stretching assembly to elastically stretch is formed in the mounting groove; the stretching assembly penetrates through the slide way and is arranged on the sliding seat and/or the second clamping seat; wherein, the supporting seat can drive first holder and second holder and keep away from relatively or be close to through the elastic expansion of tensile subassembly along the slide. The stretching assembly in the clamping device does not completely rub the supporting seat, so that the grooving difficulty of the supporting seat is reduced, the yield is improved, the supporting seat and the sliding seat can mutually provide supporting force, the stress performance of the supporting seat and the sliding seat is improved, and the stability is improved.

Description

Clamping device and shooting auxiliary device

Technical Field

The utility model relates to a clamping technical field especially relates to a clamping device and shoot auxiliary device.

Background

Clamping device among the prior art, generally include the supporting seat and connect first grip slipper and the second grip slipper on the relative both ends of supporting seat respectively, for making clamping device can be according to the size of the size adaptability adjustment centre gripping space of the quilt centre gripping thing of difference, can the shaping have the spout that supplies pull rod elastic expansion usually on the supporting seat, the pull rod is at the inner wall of the flexible in-process direct friction supporting seat spout of elasticity, however, this kind of structure generally needs the spout to run through whole supporting seat, thus, the groove depth of spout will be great, and the supporting seat need set up in the structure that two grip slippers correspond, therefore, the degree of difficulty of shaping spout is great on the supporting seat, the defective rate is higher, and the atress performance of the supporting seat after the processing is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at, the defective rate of solving current clamping device's supporting seat is high, the relatively poor technical problem of atress performance.

In order to solve the technical problem, an embodiment of the utility model provides a clamping device has adopted following technical scheme:

the clamping device comprises a supporting seat, a first clamping seat, a second clamping seat, a sliding seat and a stretching assembly, wherein the supporting seat is provided with an installation groove along the extending direction of the supporting seat;

the first clamping seat and the second clamping seat are oppositely arranged on the supporting seat and enclose a clamping space together with the supporting seat;

the sliding seat is inserted in the mounting groove, and a slideway for the stretching assembly to elastically stretch is formed in the mounting groove;

the stretching assembly penetrates through the slide way and is arranged on the sliding seat and/or the second clamping seat;

the supporting seat can drive the first clamping seat and the second clamping seat to be relatively far away from or close to the sliding way through elastic expansion of the sliding way along the stretching assembly.

Further, in a preferable scheme of some embodiments, the sliding seat includes a seat body and a sliding portion, the seat body is disposed on the supporting seat, and the sliding portion is disposed on a side of the seat body close to the second clamping seat and is inserted into the mounting groove; the sliding part is provided with a sliding groove forming the sliding way along the length direction of the sliding part, the sliding groove is provided with an opening facing the inner wall of the supporting seat, and the length of the sliding groove is smaller than that of the sliding way.

Further, in a preferable mode of some embodiments, the sliding grooves are provided in at least two numbers, and each sliding groove is uniformly distributed with respect to the center of the sliding portion.

Further, in a preferred scheme of some embodiments, in the mounting groove, a convex rib is convexly arranged at the bottom of the mounting groove on the support seat, and a plug-in hole communicated with the mounting groove is arranged at a position corresponding to the sliding groove;

in the extending direction of the slide way, the convex rib is abutted with the sliding part of the sliding seat; and a gap is arranged between the convex rib and the inner wall of the supporting seat to form a sliding cavity communicated with the sliding chute and the inserting hole;

and at the position corresponding to the insertion hole, the sliding cavity and the sliding groove jointly form the sliding way.

Further, in some preferred embodiments, the slide cavity and the slide groove are opposite and fit.

Further, in a preferable scheme of some embodiments, the top of the rib and the sliding part of the sliding seat are abutted through an arc-shaped concave-convex structure.

Further, in a preferable scheme of some embodiments, a connecting portion for connecting an external device is provided on a side of the seat body or the first clamping seat facing away from the second clamping seat.

Further, in a preferred scheme of some embodiments, the first clamping seat and the second clamping seat are arranged at two opposite ends of the supporting seat, and the first clamping seat and the supporting seat are integrally formed; one side, back to the clamping space, of the first clamping seat is provided with a mounting hole, and the mounting hole is communicated with the mounting groove; the sliding seat is inserted in the mounting hole and the mounting groove.

Further, in a preferable scheme of some embodiments, the stretching assembly includes a pull rod and an elastic member, one end of the pull rod is disposed on the second clamping seat, and the other end of the pull rod passes through the slideway and is disposed on the sliding seat; the elastic piece is sleeved on the pull rod and can elastically stretch and retract in the slide way to slide along the length direction of the slide way.

In order to solve the technical problem, an embodiment of the utility model provides a still provide a shoot auxiliary device, adopt as follows technical scheme: the shooting auxiliary device comprises the clamping device.

Compared with the prior art, the embodiment of the utility model provides a clamping device and shoot auxiliary device mainly have following beneficial effect:

the clamping device is characterized in that a mounting groove is formed in a supporting seat, a sliding seat is additionally arranged, the sliding seat is inserted into the mounting groove, and a slide way for the stretching component to elastically stretch is formed in the mounting groove, so that when the stretching component elastically stretches in the slide way in the process of adjusting the size of a clamping space, the stretching component cannot completely rub the inner wall of the supporting seat, but part of the stretching component rubs the sliding seat in the slide way; and secondly, the sliding seat is arranged in the supporting seat, so that the effect of mutual supporting force can be achieved between the sliding seat and the supporting seat obviously, the stress performance of the supporting seat and the sliding seat is greatly increased, and the structural strength and the stability of the clamping device are improved.

Drawings

In order to illustrate the solution of the present invention more clearly, the drawings needed for describing the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts. Wherein:

fig. 1 is a schematic perspective view of a clamping device in an original state according to an embodiment of the present invention;

FIG. 2 is a perspective cross-sectional view of the clamping device of FIG. 1;

FIG. 3 is an exploded perspective view of the clamping device of FIG. 1;

FIG. 4 is a schematic perspective view of a carriage of the clamping device of FIG. 1;

FIG. 5 is a schematic perspective view of the clamping device of FIG. 1 with the support base and the first clamping base removed;

FIG. 6 is a perspective view of the clamping device of FIG. 1 in one use configuration;

fig. 7 is a schematic perspective view of the auxiliary device for shooting according to an embodiment of the present invention.

The reference numbers in the drawings are as follows:

1000. a shooting assistance device; 100. a clamping device; 200. a handle;

1. a supporting seat; 11. mounting grooves; 12. a rib is protruded; 121. an arc-shaped convex part; 13. inserting holes; 14. a slide chamber;

2. a first clamping seat; 21. mounting holes; 22. a groove; 3. a second clamping seat;

4. a slide base; 41. a seat body; 411. a first connection hole; 42. a slide part; 421. a chute; 422. an opening; 423. an arc-shaped concave part;

5. a stretching assembly; 51. a pull rod; 52. an elastic member; 53. a locking member;

6. a clamping space; 7. a connecting portion; 8. a slide way.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terms used herein in the specification are for the purpose of describing particular embodiments only and are not intended to limit the present invention, for example, the terms "length," "width," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or position based on the orientation or position shown in the drawings, for convenience of description only, and should not be construed as limiting the present disclosure.

The terms "including" and "having," and any variations thereof, in the description and claims of this invention and the description of the above figures are intended to cover non-exclusive inclusions; the terms "first," "second," and the like in the description and claims of the present invention or in the above-described drawings are used for distinguishing between different objects and not for describing a particular sequential order. The meaning of "plurality" is two or more unless specifically limited otherwise.

In the description and claims of the present invention and in the description of the above figures, when an element is referred to as being "fixed" or "mounted" or "disposed" or "connected" to another element, it can be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The embodiment of the present invention provides a clamping device 100, and the clamping device 100 is mainly used for clamping a target object and can be connected to an external device. The "target object" may be an electronic device such as a mobile phone, ipad, or a video camera, or may be another suitable product. In addition, the clamping device 100 may be applied to the auxiliary photographing device 1000, and may also be applied to other suitable products, which are not particularly limited herein. Generally, the structure of the clamping device 100 is stable and reliable, the manufacturing is convenient, and the yield is high.

As shown in fig. 1 and fig. 2, the clamping device 100 includes a supporting base 1, a first clamping base 2, a second clamping base 3, a sliding base 4 and a stretching assembly 5, wherein, for clamping the electronic device, the first clamping base 2 and the second clamping base 3 are oppositely disposed on the supporting base 1 and enclose a clamping space 6 together with the supporting base 1. That is, in use, the electronic device is clamped within the clamping space 6.

In the present embodiment, as shown in fig. 1 and fig. 2, the supporting seat 1 is provided with an installation groove 11 along the extending direction (specifically, the length direction of the supporting seat 1); the sliding seat 4 is inserted into the mounting groove 11, and a slide rail 8 is formed in the mounting groove 11 of the sliding seat 4. The stretching assembly 5 passes through the slideway 8 along the extension direction of the slideway 8 (specifically, the extension direction of the supporting seat 1) and is arranged on the sliding seat 4 and/or the second clamping seat 3. That is, one end of the stretching assembly 5 is disposed on the sliding base 4, and the other end is a free end, or one end of the stretching assembly 5 is a free end, and the other end is disposed on the second clamping base 3, or the two opposite ends of the stretching assembly 5 are disposed on the sliding base 4 and the second clamping base 3, respectively. In the present embodiment, in order to ensure the structural stability of the whole structure, the two opposite ends of the stretching assembly 5 are respectively disposed on the sliding base 4 and the second clamping base 3.

Wherein, for making this clamping device 100 can adjust the size of centre gripping space 6 according to the size of dimensions of target object to improve its suitability and commonality, tensile subassembly 5 can carry out elastic expansion in slide 8, and supporting seat 1 can drive first holder 2 and second holder 3 and keep away from relatively or be close to through tensile subassembly 5 along the elastic expansion of slide 8. Specifically, in this embodiment, as shown in fig. 2 and 5, the first clamping seat 2 and the supporting seat 1 are fixedly connected, and the supporting seat 1 and the second clamping seat 3 can relatively move along the length direction of the stretching assembly 5, so that the distance between the first clamping seat 2 and the second clamping seat 3 is increased in the compression process of the stretching assembly 5.

It is understood that, in the embodiment, when the stretching assembly 5 elastically stretches and contracts in the slide way 8, the slide way 8 is formed by the slide base 4 in the installation groove 11 of the support base 1, so although the installation groove 11 is formed on the support base 1, actually, when the size of the clamping space 6 is adjusted, the stretching assembly 5 does not directly rub the groove wall of the installation groove 11 of the support base 1, but rubs the slide base 4 in the slide way 8; in addition, because the slide 4 is inserted in the mounting groove 11 of the support seat 1, and is also installed inside the support seat 1, the inner wall of the support seat 1 can provide a certain supporting force for the slide 4, and similarly, the slide 4 can also provide a certain supporting force for the support seat 1 in the support seat 1, thereby being beneficial to greatly increasing the strength of the slide 4 and the support seat 1, and ensuring the structural strength and reliability of the clamping device 100.

In summary, compared with the prior art, the clamping device 100 has at least the following advantages: in the clamping device 100, the mounting groove 11 is formed in the supporting seat 1, the sliding seat 4 is newly added, the sliding seat 4 is inserted into the mounting groove 11, and the slide way 8 for the stretching component 5 to elastically stretch and retract is formed in the mounting groove 11, so that when the stretching component 5 elastically stretches and retracts in the slide way 8 in the process of adjusting the size of the clamping space 6, the stretching component 5 does not completely rub the inner wall of the supporting seat 1, but a part of the stretching component 5 rubs the sliding seat 4 in the slide way 8, obviously, compared with the prior art in which only the sliding hole for the stretching component 5 to elastically stretch and retract is formed in the supporting seat 1, the mounting groove 11 of the supporting seat 1 can be larger, and the requirement is lower than the requirement of the existing sliding hole structure for rubbing in the supporting seat 1, so that the difficulty of forming the sliding groove 421 in the supporting seat 1 is reduced, and the yield is improved; two come because of slide 4 installs in the inside of supporting seat 1, obviously can play the effect that provides the supporting force each other between slide 4 and the supporting seat 1 to greatly increased supporting seat 1 and slide 4 both's atress performance, do benefit to the structural strength and the steadiness that improve this clamping device 100.

In order to make the technical solution of the present invention better understood, the technical solution of the embodiment of the present invention will be clearly and completely described below with reference to fig. 1 to 6.

Further, as a specific implementation manner in some embodiments of the present invention, as shown in fig. 1 to fig. 4, in order to realize that the sliding seat 4 is inserted and installed on the supporting seat 1, and the slide rail 8 is formed in the installation groove 11 of the supporting seat 1, the sliding seat 4 includes a seat body 41 and a sliding portion 42, wherein the seat body 41 is disposed on the supporting seat 1, and the sliding portion 42 is disposed on one side of the seat body 41 close to the second clamping seat 3 and inserted and connected in the installation groove 11. Understandably, the sliding portion 42 of the sliding seat 4 is inserted into the mounting groove 11 along the direction from the first supporting seat 2 to the second clamping seat 3.

In the present embodiment, in order to prevent the tension module 5 from completely rubbing against the support base 1 in the installation groove 11 during elastic expansion and contraction, as shown in fig. 2 to 5, the sliding portion 42 is provided with a sliding groove 421 forming the slide rail 8 along the longitudinal direction thereof. In order to reduce the difficulty of forming the sliding chute 421 by the sliding seat 4, as shown in fig. 4, the sliding chute 421 is provided with an opening 422 facing the inner wall of the supporting seat 1, wherein the length of the sliding chute 421 is smaller than the length of the sliding rail 8 (see fig. 2 and 5). Thus, the runner 421 with a too long length does not need to be formed in the extending direction of the sliding portion 42 (specifically, the depth direction/length direction of the runner 421), and only the runner 421 with a short length (i.e., the depth of the runner 421) needs to be formed, in short, no too deep hole appears on the sliding seat 4, which obviously reduces the difficulty of forming the mounting groove 11 on the supporting seat 1 and reduces the difficulty of forming the runner 421 on the sliding seat 4, thereby facilitating the improvement of the yield of the supporting seat 1 and even the clamping device 100.

It should be noted that, in order to ensure that the portion of the stretching assembly 5 located in the sliding slot 421 only rubs against the sliding seat 4 or that most of the area of the portion located in the sliding slot 421 rubs against the sliding seat 4, the angle of the opening 422 of the sliding slot 421 should be less than 180 °, specifically, in this embodiment, the angle of the opening 422 of the sliding slot 421 is less than 90 °, that is, the sliding slot 421 covers at least half or more of the area of the portion of the stretching assembly 5 located in the sliding slot 421.

Specifically, in this embodiment, in order to fixedly connect the sliding seat 4 to the first clamping seat 2, so as to move up and down together with the first clamping seat 2, as shown in fig. 1 and fig. 3 to fig. 5, a first connecting hole 411 (specifically, a threaded hole or a through hole) is formed on the seat body 41 of the sliding seat 4, and correspondingly, a second connecting hole (not shown) is formed on the supporting seat 1 or the first clamping seat 2, wherein after the sliding seat 4 is inserted into the mounting groove 11, the sliding seat 4 is sequentially inserted into the first connecting hole 411 and the second connecting hole (specifically, a threaded hole) through a fastener (not shown), so as to be fixedly connected with the supporting seat 1 or the first clamping seat 2. In addition, when the sliding seat 4 is damaged due to friction and needs to be replaced, the fastening piece can be directly detached, and a new adaptive sliding seat 4 can be replaced, so that the clamping device 100 is obviously very convenient to disassemble, assemble and maintain, and the like.

Further, as a specific implementation manner of some embodiments of the present invention, in order to ensure the stability of the size of the clamping space 6 between the first clamping seat 2 and the second clamping seat 3, the sliding grooves 421 are provided with at least two sliding grooves, wherein the sliding grooves 421 are uniformly distributed relative to the center of the sliding portion 42. Preferably, as shown in fig. 2 and 4, the sliding groove 421 has two in order to simplify the overall structure and ensure structural stability. Correspondingly, two stretching assemblies 5 are provided, and the sliding groove 421 is adapted to the stretching assemblies 5. Preferably, as shown in fig. 4 and 5, the sliding groove 421 has a circular groove 22 as a whole, and the middle portion of the tension member 5 is wrapped by the groove wall of the sliding groove 421 and does not contact with the groove wall of the mounting groove 11 of the support seat 1.

Further, as a specific implementation manner in some embodiments of the utility model, as shown in fig. 2, for reducing the fluting degree of difficulty of supporting seat 1 and slide 4, avoid the too dark groove of shaping, in mounting groove 11, supporting seat 1 is equipped with protruding muscle 12 at the tank bottom of mounting groove 11 is protruding, and supporting seat 1 offers the communicating spliced eye 13 with mounting groove 11 in the position department that spout 421 corresponds.

As shown in fig. 2, in the extending direction of the slide way 8 (i.e. the length direction of the supporting seat 1), the rib 12 abuts against the sliding part 42 of the sliding seat 4; and the convex rib 12 and the inner wall of the supporting seat 1 are arranged in a clearance way to form a sliding cavity 14. Wherein, the two end openings of the sliding cavity 14 are respectively communicated with the sliding groove 421 and the inserting hole 13. At the position corresponding to the insertion hole 13, the sliding cavity 14 and the sliding groove 421 together form the slide way 8 in the installation slot 11.

Understandably, the supporting seat 1 is provided with a convex rib 12 in the mounting groove 11 in a protruding manner, and the periphery of the convex rib 12 is provided with an inserting hole 13 communicated with the sliding groove 421, so that the stretching component 5 can be inserted into the slideway 8 from the inserting hole 13, and a sliding cavity 14 can be formed at the corresponding part of the convex rib 12 to be butted with the sliding groove 421 of the sliding seat 4, so that the slotting depth of the sliding seat 4 is reduced, the slotting difficulty of the supporting seat 1 is reduced, the friction sliding length of the stretching component 5 during elastic telescoping can be ensured, the elastic telescoping stability of the stretching component 5 is ensured, and large shaking cannot occur in the mounting groove 11; secondly, do benefit to and ensure that slide 4 can not have too much rocking in mounting groove 11, do benefit to and ensure overall structure's steadiness and reliability.

Preferably, to ensure a relatively smooth and smooth elastic expansion and contraction process of the stretching assembly 5, the sliding cavity 14 in the mounting groove 11 of the supporting seat 1 is opposite to and matched with the sliding groove 421 on the sliding seat 4. Specifically, at the transition position of the slider 4 and the rib 12, the outer wall surface of the slider 4 and the outer wall surface of the rib 12 are flush for smooth transition. The shape of the slide chamber 14 is also preferably circular.

Further, as a specific implementation manner in some embodiments of the present invention, as shown in fig. 2, in order to enhance the stability and reliability of the butt joint between the rib 12 and the sliding seat 4, the top of the rib 12 and the sliding part 42 of the sliding seat 4 are abutted by the arc-shaped concave-convex structure.

Preferably, in this embodiment, as shown in fig. 2, an arc convex portion 121 is formed at the top of the rib 12, and correspondingly, as shown in fig. 2, 4 and 5, an arc concave portion 423 is formed at the bottom of the sliding portion 42 of the sliding base 4, wherein the arc convex portion 121 and the arc concave portion 423 are in concave-convex fit to realize concave-convex fit between the sliding base 4 and the rib 12, so as to ensure that the sliding base 4 does not shake in the mounting groove 11, in other words, the rib 12 can play a role in positioning and reinforcing the sliding base 4.

Further, as a specific implementation manner in some embodiments of the present invention, as shown in fig. 2, on one side departing from the second clamping seat 3, the seat body 41 of the sliding seat 4 or the first clamping seat 2 is provided with a connecting portion 7, wherein the connecting portion 7 is mainly used for connecting an external device, that is, the clamping device 100 can directly connect the external device through the connecting portion 7, so as to conveniently expand related functions.

The "external device" includes, but is not limited to, a fill light, a microphone, and the like. Preferably, in the present embodiment, as shown in fig. 1, fig. 2 and fig. 5, the connecting portion 7 is a socket, for example, a snap interface is provided on the outer side of the second holder 3.

Further, as a specific implementation manner in some embodiments of the present invention, as shown in fig. 2, in order to simplify the overall structure of the clamping device 100, the first clamping seat 2 and the second clamping seat 3 are disposed at two opposite ends of the supporting seat 1, and the first clamping seat 2 and the supporting seat 1 are integrally formed.

As shown in fig. 2 and 3, in order to facilitate the installation of the sliding seat 4, an installation hole 21 is formed in a side of the first clamping seat 2 facing away from the clamping space 6, wherein the installation hole 21 is communicated with the installation groove 11, and the sliding seat 4 is inserted into the installation hole 21 and the installation groove 11. Understandably, the sliding seat 4 can be directly inserted into the mounting groove 11 along the mounting hole 21 and the mounting groove 11 in sequence to be mounted on the supporting seat 1.

In the present embodiment, as shown in fig. 1 and fig. 2, a groove 22 is opened at a position corresponding to the mounting hole 21, on a side of the first clamping seat 2 away from the clamping space 6, wherein the mounting hole 21 is opened at a bottom of the groove 22 and is communicated with the mounting groove 11 of the supporting seat 1. Thus, the sliding portion 42 of the sliding seat 4 can sequentially pass through the groove 22 and the mounting hole 21 to be inserted into the mounting groove 11 of the supporting seat 1, the seat body 41 of the sliding seat 4 is accommodated in the groove 22, and the main top surface of the seat body 41 is flush with the outer wall surface of the first clamping seat 2, so as to ensure the aesthetic appearance of the whole structure.

Further, as a specific implementation manner of some embodiments of the present invention, as shown in fig. 2, fig. 3 and fig. 5, in order to ensure that the stretching assembly 5 has an elastic stretching function in the installation groove 11, the stretching assembly 5 includes a pull rod 51 and an elastic member 52, wherein one end (specifically, a bottom end) of the pull rod 51 is disposed on the second clamping seat 3, and the other end (specifically, a top end) is disposed on the sliding seat 4 through the sliding rail 8; the elastic member 52 is sleeved on the pull rod 51 and can elastically stretch and contract in the slideway 8 so as to slide along the length direction of the slideway 8.

Specifically, in the present embodiment, as shown in fig. 2 and fig. 3, in order to ensure that the elastic element 52 can elastically stretch and retract smoothly, the stretching assembly 5 further includes a locking element 53, wherein the locking element 53 is locked at the other end of the pull rod 51, one end of the elastic element 52 abuts against the groove bottom of the mounting groove 11 (corresponding to the bottom of the sliding cavity 14) at a side close to the insertion hole 13, and the other end is fixed in the sliding groove 421 of the sliding seat 4 or abuts against the locking element 53.

Understandably, as shown in fig. 1, fig. 2, fig. 5 and fig. 6, the elastic member 52 of the stretching assembly 5 is accommodated in the slide way 8, and the other end (specifically, the top end) of the pull rod 51 passes through the insertion hole 13 of the supporting seat 1 to enter the slide way 8 and passes through the slide way 8 to be disposed on the slide seat 4, so that when the clamping space 6 is enlarged, a user can relatively pull the first clamping seat 2 and the second clamping seat 3 apart along the length direction of the supporting seat 1, at this time, as shown in fig. 5 and fig. 6, along with the supporting seat 1 being away from the second clamping seat 3 along with the first clamping seat 2, under the abutting of the supporting seat 1, the elastic member 52 sleeved on the pull rod 51 is compressed along the length direction of the pull rod 51 in the slide way 8, and on the contrary, under the effect of the resilient force, the compressed elastic member 52 pushes the supporting seat 1 to drive the first clamping seat 2 to approach the second clamping seat 3, so as to gradually adjust (specifically, reduce) the clamping space 6.

It should be noted that the "elastic member 52" is generally a spring. Of course, in other embodiments, other suitable configurations for the stretching assembly 5 may be used.

Based on the above-mentioned clamping device 100, as shown in fig. 7, the embodiment of the present invention further provides a shooting assisting device 1000, wherein the shooting assisting device 1000 includes the above-mentioned clamping device 100. In this embodiment, the auxiliary device 1000 further includes a handle 200, wherein the clamping device 100 is generally disposed on the top of the handle 200. Of course, in other embodiments, the clamping device 100 may be disposed on other components of the auxiliary photographing device 1000.

In summary, compared with the prior art, the auxiliary device 1000 for shooting has at least the following beneficial effects: by adopting the clamping device 100, the shooting auxiliary device 1000 is convenient to manufacture, high in yield, good in stress performance, simple and reliable in overall structure and suitable for targets with different sizes.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. A clamping device is characterized by comprising a supporting seat, a first clamping seat, a second clamping seat, a sliding seat and a stretching assembly, wherein the supporting seat is provided with an installation groove along the extending direction of the supporting seat;

the first clamping seat and the second clamping seat are oppositely arranged on the supporting seat and enclose a clamping space together with the supporting seat;

the sliding seat is inserted in the mounting groove, and a slideway for the stretching assembly to elastically stretch is formed in the mounting groove;

the stretching assembly penetrates through the slide way and is arranged on the sliding seat and/or the second clamping seat;

the supporting seat can stretch along the elasticity of the slide way through the stretching assembly to drive the first clamping seat and the second clamping seat to be relatively far away from or close to each other.

2. The clamping device as claimed in claim 1, wherein the sliding seat comprises a seat body and a sliding portion, the seat body is disposed on the supporting seat, the sliding portion is disposed on a side of the seat body close to the second clamping seat and is inserted into the mounting groove; the sliding part is provided with a sliding groove forming the sliding way along the length direction of the sliding part, the sliding groove is provided with an opening facing the inner wall of the supporting seat, and the length of the sliding groove is smaller than that of the sliding way.

3. Clamping device according to claim 2, characterized in that the slide slots are provided in at least two, each of which is evenly distributed with respect to the centre of the slide.

4. The clamping device as claimed in claim 2, wherein in the mounting groove, the supporting seat is provided with a convex rib at the bottom of the mounting groove, and a plug hole communicated with the mounting groove is provided at a position corresponding to the sliding groove;

in the extending direction of the slide way, the convex rib is abutted with the sliding part of the sliding seat; and a gap is arranged between the convex rib and the inner wall of the supporting seat to form a sliding cavity communicated with the sliding chute and the inserting hole;

and at the position corresponding to the insertion hole, the sliding cavity and the sliding groove jointly form the sliding way.

5. A holding arrangement as claimed in claim 4, wherein the slide cavity and the slide slot are diametrically opposed and adapted.

6. The clamping device of claim 4, wherein the top of the rib abuts against the sliding part of the sliding seat through an arc-shaped concave-convex structure.

7. Clamping device according to claim 2, wherein a connecting part for connecting an external device is arranged on the side of the seat body or the first clamping seat facing away from the second clamping seat.

8. The clamping device of claim 2, wherein the first clamping seat and the second clamping seat are disposed at opposite ends of the supporting seat, and the first clamping seat and the supporting seat are integrally formed; one side, back to the clamping space, of the first clamping seat is provided with a mounting hole, and the mounting hole is communicated with the mounting groove; the sliding seat is inserted in the mounting hole and the mounting groove.

9. The clamping device as claimed in any one of claims 1 to 8, wherein the stretching assembly comprises a pull rod and an elastic member, one end of the pull rod is arranged on the second clamping seat, and the other end of the pull rod is arranged on the sliding seat through the slide way; the elastic piece is sleeved on the pull rod and can elastically stretch and retract in the slide way to slide along the length direction of the slide way.

10. A photographic aid characterized in that it comprises a holding device according to any one of claims 1 to 9.

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