Clamping device and triangular support

Abstract

The utility model discloses a clamping device and triangular support frame, wherein the clamping device includes base, first clamping body and second clamping body, one side of base is equipped with elastic expansion piece, and the end of elastic expansion piece is hinged with second clamping body, and second clamping body can be elastically stretched relative to base through elastic expansion piece, first clamping body has two states of being perpendicular to base and being free, second clamping body has two states of being perpendicular to elastic expansion piece and being folded, the utility model provides a clamping device and triangular support frame with clamping device, and first clamping body and second clamping body can form clamping state through being arranged, second clamping body can also be folded through the avoiding portion of first clamping body, triangular support frame is formed, desktop photography and live broadcast are adapted, first clamping body also has mountain climbing buckle function, first clamping body and base are laid out and are unfolded, and a selfie stick type device can also be obtained, and one thing is truly realized multiple uses.

Description

Technical Field

[0001] This utility model relates to the field of photographic support technology, and in particular to a clamping device and a tripod support frame. Background Technology

[0002] Currently, photography stands come in various forms, such as tripods and selfie sticks. Consumers often need to purchase separate products for different photography needs. Furthermore, the photography process involves shooting needs in multiple application scenarios, such as desktop shooting, live streaming, selfies and hanging during mountain climbing, and simple handheld shooting. Current photography stands are difficult to meet consumers' needs for multiple uses with one device. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a clamping device and a triangular support frame to solve the technical problems mentioned in the background art.

[0004] To solve the technical problem, this utility model adopts the following technical solution:

[0005] A clamping device includes a base, a first clamping body, and a second clamping body. The first clamping body is hinged to an end of the base. The base is elastically telescopically mounted with an elastic telescopic member. The end of the elastic telescopic member is hinged to the second clamping body. The second clamping body can be elastically stretched relative to the base via the elastic telescopic member. The first clamping body has two states relative to the base: approximately perpendicular and approximately free. The second clamping body has two states relative to the elastic telescopic member: approximately perpendicular and folded. When the first clamping body is approximately perpendicular and the second clamping body is elastically stretched and approximately perpendicular, the clamping device can be used for clamping. When the first clamping body is relatively free and the second clamping body is inelastically stretched and folded, the clamping device can be used to form a support frame or a hanger (the method of forming a support frame and a hanger needs to be explained).

[0006] Specifically, the first clamping body has a clearance portion through which the second clamping body passes when it folds back or is elastically stretched outward;

[0007] Specifically, the base has a first abutment portion at its end, and the first clamping body has a second abutment portion and a third abutment portion. When the second abutment portion or the third abutment portion abuts with the first abutment portion, the first clamping body and the base are in a roughly perpendicular state. When neither the second abutment portion nor the third abutment portion abuts with the first abutment portion, the first clamping body and the base are in a roughly free state.

[0008] Specifically, the end of the elastic telescopic member is provided with a first bearing seat, the lower end of the second clamping body is provided with a hinge ear and a first stop surface, the second clamping body is hinged to the hinge ear through the first shaft holes at both ends of the first bearing seat, the first bearing seat is provided with a second stop surface and a third stop surface in sequence, wherein the second stop surface is parallel to the stretching surface of the elastic telescopic member, and the third stop surface is approximately perpendicular to the stretching surface of the elastic telescopic member. When the first stop surface and the third stop surface abut, the second clamping body and the elastic telescopic member are in a approximately perpendicular state, and when the first stop surface and the second stop surface abut, the second clamping body and the elastic telescopic member are in a folded state.

[0009] Specifically, the base has a telescopic cavity on its inner side and an extension opening at its end. A tension spring is fixed inside the telescopic cavity, and the other end of the tension spring is fixedly connected to an elastic telescopic member. The end of the elastic telescopic member extends through the extension opening and is hinged to the second clamping body.

[0010] It also includes a push-pull component. One end face of the base is provided with a push-pull groove. One end of the push-pull component passes through the push-pull groove and is fixedly connected to an elastic telescopic component located inside the telescopic cavity. One side of the elastic telescopic component is provided with a limiting block. The limiting block can abut against the end of the telescopic cavity to act as a telescopic limit. The bottom of the telescopic cavity is provided with a limiting groove. One side of the elastic telescopic component forms a limiting part (composed of two bolts, or a single limiting part can be provided). The limiting part slides within the limiting groove. The push-pull component is provided with a protrusion facing the pushing and pulling direction, and anti-slip texture is provided on the end face of the push-pull component.

[0011] Specifically, the first clamping body includes clamping rotating frames on both sides, a first rotating shaft at the bottom of the two clamping rotating frames, and an elastic latch at the top of the two clamping rotating frames. The elastic latch is hinged to one of the clamping rotating frames and elastically abuts against the other clamping rotating frame. A C-shaped clamp is fixedly installed at the end of the base. A second shaft hole is formed on the outer side of the C-shaped clamp for the first rotating shaft to rotate and connect. The clamping rotating frames on both sides are hinged through the first rotating shaft and the second shaft hole.

[0012] A tripod support frame, characterized in that it includes the clamping device described above, the two sides of the base are hingedly mounted with legs, and the rear end of the base is mounted with a mobile phone bearing component via a connecting assembly.

[0013] Specifically, the adapter assembly is a folding component, including a first folding member, a second folding member, and an adapter. The adapter is installed at one end of the base. The adapter has a first hinge portion for hinged with the support leg and a second hinge portion for hinged with the first folding member. The other end of the first folding member is hinged with the second folding member, and the other end of the second folding member is hinged with the mobile phone support component (all hinges here are set as damped hinges, and the hinge method can be achieved by bolts and plastic washers).

[0014] Specifically, the first hinge part and the outer shell end face of the base form a first inclined surface. The first inclined surface is at an obtuse angle to the length direction of the base. The support leg is provided with a second inclined surface at the position corresponding to the first inclined surface. The first inclined surface and the side of the base form a storage area for the support leg to be inserted. The supporting end of the support leg can rotate around the axis to form a triangular support frame with the base. When the support leg is stored in the storage area, it can be completely embedded in the storage area and form a complete body that is easy to hold with the base. The support leg is provided with a limiting groove at the position of the second inclined surface. The first inclined surface is provided with a limiting protrusion at the position corresponding to the limiting groove. The support leg limits the rotation angle of the support leg through the cooperation of the limiting protrusion and the limiting groove.

[0015] Specifically, the mobile phone support component is a magnetic bracket, a mobile phone clip, or a ball joint connection assembly.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model provides a clamping device and a triangular support frame with a clamping device. The first clamping body and the second clamping body can be clamped together. The second clamping body can also be folded from the avoidance part of the first clamping body to facilitate the supporting role of the first clamping body relative to the base. It can be used alone or in combination with other legs to form a triangular support frame, which is suitable for desktop photography and live streaming. The first clamping body also has a locking function, which can be used as a hook with a lock when not in use for mountaineering photography. When the first clamping body is laid flat with the base, it can also be used as a selfie stick device, truly realizing multiple uses in one piece. Attached Figure Description

[0018] Figure 1 : This is a structural unfolded view of the clamping device (lower) and the triangular support frame (upper);

[0019] Figure 2 The clamping device (lower left) and the triangular support frame (upper right) are shown in the diagram. Figure 2 (where the first clamping body and the second clamping body are closed);

[0020] Figure 3 : The structure of the clamping device (lower) and the triangular support frame (upper) is unfolded. Figure 3 (where the first and second clamping bodies are unfolded and ready to be clamped);

[0021] Figure 4 : This is a schematic diagram of the base structure;

[0022] Figure 5 : This is a schematic diagram of the clamping device (where the first and second clamping bodies are unfolded and ready to be clamped);

[0023] Figure 6: This is an exploded view of the clamping device structure;

[0024] Figure 7 : Structural breakdown of the clamping device Figure 2 ;

[0025] Figure 8 : Diagram showing the clamping device and triangular support frame in their folded state;

[0026] Figure 9 : This is a schematic diagram of the outrigger structure;

[0027] Figure 10 :for Figure 3 The front view;

[0028] Figure 11 : Figure 10 AA section diagram;

[0029] Figure 12 : Figure 3 Middle side view (where the second clamp changes from closed to open);

[0030] In the figure: clamping device 10A, base 1, first abutment part 11, telescopic cavity 12, extension opening 13, tension spring 14, push-pull groove 15, limiting slide groove 16, left end 101, right end 102, front end 103, rear end 104, upper end 105, lower end 106, elastic telescopic component 4, first shaft seat 41, first shaft hole 411, second stop surface 412, third stop surface 413, stretching surface 42, limiting block 43, limiting part 44, second clamping body 3, hinge ear 31, first stop surface 32, push-pull component 5, protrusion 51, anti-slip texture 52 1. First clamping body 2. Second abutting part 201. Third abutting part 202. Avoiding part 21. Clamping rotating frame 22. First rotating shaft 23. Elastic lock 24. Torsion spring 241. C-shaped clamp 25. Second shaft hole 251. Tripod support frame 20A. Support leg 6. Mobile phone bearing component 8. Adapter assembly 7. First folding part 71. Second folding part 72. Storage slot 711. Adapter 9. First hinge part 91. Second hinge part 92. First inclined surface 911. Second inclined surface 61. Storage area 17. Limiting rotating groove 61a. Limiting protrusion 911a. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] refer to Figures 1 to 12 :

[0033] This utility model discloses a clamping device 10A, see reference. Figure 1The clamping device 10A includes a generally rectangular base 1, a generally plate-shaped first clamping body 2, and a second clamping body 3. The base 1 has a left end 101, a right end 102, a front end 103, a rear end 104, an upper end 105, and a lower end 106. The bottom of the first clamping body 2 is hinged to the front end 103 of the base 1. An elastic telescopic member 4 is installed on the inner side of the base 1. The bottom of the second clamping body 3 is hinged to the front end 103 of the elastic telescopic member 4. The elastic telescopic member 4 is connected by internal elastic components (such as tension spring 14, elastic cord, etc.) so that the elastic telescopic member 4 can be elastically stretched outward relative to the base 1. With the help of the elastic force of the elastic component, the second clamping body 3 can always rebound in the direction of clamping the base 1. When the second clamping body 3 is stretched to be outside the first clamping body 2, the second clamping body 3 can form a clamping mechanism together with the first clamping body 2. This clamping mechanism allows the clamping device 10A to be clamped on the tabletop.

[0034] In a preferred embodiment, the elastic telescopic member 4 is a telescopic plate located inside the base 1 along the length of the base 1 and capable of extending to the outside. Specifically, the base 1 has a telescopic cavity 12 on its inner side and an extension opening 13 on its front end face. A tension spring 14 is fixed inside the telescopic cavity 12, and the other end of the tension spring 14 is fixedly connected to the elastic telescopic member 4. The end of the elastic telescopic member 4 extends through the extension opening 13 and is hinged to the second clamping body 3. Specifically, the end of the telescopic plate has a first bearing seat 41, the height of which is higher than the height of the elastic telescopic member 4. Preferably, the cross-section of the first bearing seat 41 is square. The lower end 106 of the second clamping body 3 has a hinge ear 31 and a first stop surface 32. The second clamping body 3 is hinged to the hinge ear 31 through the first shaft holes 411 at both ends of the first bearing seat 41. The first bearing seat 41 is sequentially provided with a second stop surface 412 and a third stop surface 413, wherein the second stop surface 412 is parallel to the stretching surface 42 of the elastic telescopic member 4, and the third stop surface 413 is parallel to the stretching surface 42 of the elastic telescopic member 4. The stop surface 413 is approximately perpendicular to the stretching surface 42 of the elastic telescopic member 4. When the first stop surface 32 abuts against the third stop surface 413, the second clamping body 3 is approximately perpendicular to the elastic telescopic member 4. When the first stop surface 32 abuts against the second stop surface 412, the second clamping body 3 is folded against the elastic telescopic member 4. Thus, the second clamping body 3 has two states relative to the elastic telescopic member 4: approximately perpendicular and folded. The approximately perpendicularity here includes some states that are not absolutely perpendicular, which are related to product tolerances or the angle required by different application scenarios. In addition, when the first stop surface 32 of the second clamping body 3 abuts against the third stop surface 413, the second clamping body 3 is just approximately perpendicular to the elastic telescopic member 4. Due to the obstruction of the third stop surface 413, the second clamping body 3 cannot rotate to an angle larger than approximately perpendicular. Therefore, when forming the clamping mechanism, the second clamping body 3 is located outside the first clamping body 2 and uses the third stop surface 413 as a fulcrum to complete the clamping mechanism.

[0035] In a preferred embodiment, the base 1 has a first abutment portion 11 at its end, and the first clamping body 2 has a second abutment portion 201 and a third abutment portion 202. Preferably, the first abutment portion 11 is the front end 103 surface of the base 1, which is approximately perpendicular to the length direction of the base 1. The second abutment portion 201 and the third abutment portion 202 are the rear end 104 surface and the front end 103 surface of the bottom of the first clamping body 2, respectively. When the second abutment portion 201 or the third abutment portion 202 abuts against the first abutment portion 11, the first clamping body 2 is approximately perpendicular to the base 1. When neither the second abutment portion 201 nor the third abutment portion 202 abuts against the first abutment portion 11, the first clamping body 2 is approximately free between the base 1 and the base 1. When the second abutment portion 201 abuts against the first abutment portion 11, the first clamping body 2 rotates to the same upward angle as the second clamping body 3, and passes through the first abutment portion 101 on the base 1. As a fulcrum, the first clamping body 2 can no longer rotate towards the rear end 104 of the base 1, thus forming an opposite abutment direction with the first clamping body 2. When the third abutting part 202 abuts against the first abutting part 11, it is equivalent to the first clamping body 2 rotating to a direction that is approximately perpendicular to the lower end 106 of the base 1. At this time, the base 1 can use the first clamping body 2 as a support plate to form a structure similar to a mobile phone support frame. As shown in the figure and the two abutting parts of the first clamping body 2 relative to the base 1, the first clamping body 2 can rotate within a range of about 0 to 180 degrees relative to the base 1. Except for the two approximately perpendicular states, the first clamping body 2 is relatively free between 0 and 180 degrees. It can rotate around the hinge axis between itself and the base 1. In a preferred embodiment, its hinge structure is set as a damping structure with a pad, which can help the first clamping body 2 to be arbitrarily fixed at an angle between 0 and 180 degrees.

[0036] Specifically, compared to some traditional clamping devices 10A, where both the second clamping body 3 and the first clamping body 2 are perpendicular to the base 1 and cannot rotate, which limits the functionality of the entire device and increases its carrying volume, making it inconvenient to carry, in this patent, the first clamping body 2 has a clearance portion 21 through which the second clamping body 3 passes when folded back or elastically stretched outward. Preferably, the clearance portion 21 is a groove, which is just larger than the outer contour of the second clamping body 3. In addition, the second clamping body 3 itself can fold relative to the elastic telescopic member 4. When folded, it is just folded to a state that is flush with the upper end 105 surface of the base 1. The folding and unfolding of the second clamping body 3 both depend on the clearance portion 21 of the first clamping body 2. When the second clamping body 3 is folded up, and the first clamping body 2 is flush with the base 1, a selfie stick mode can be formed. When the first clamping body 2 forms an obtuse angle or a right angle with the base 1, the base 1 can use the first clamping body 2 as a support body, forming a pattern similar to a mobile phone holder (support frame), provided that the center of gravity of the upper end 105 allows. Of course, this is only a partial technical effect listed here. With this setting, the first clamping body 2 has two states relative to the base 1: approximately vertical and approximately free. When the first clamping body 2 is approximately vertical and the second clamping body 3 is elastically stretched and approximately vertical, this clamping device 10A can be used for clamping. When the first clamping body 2 is relatively free and the second clamping body 3 is inelastically stretched and folded, this clamping device 10A can be used to form a support frame or hanger. It should be understood that the approximately verticality here is determined by the angle of the front end 103 surface of the base 1 and the product tolerance, which includes absolute 90-degree verticality and individual angled relationships.

[0037] In the aforementioned embodiment, the second clamping body 3 can be pulled outward by hand. When it is pulled beyond the thickness of the tabletop, the second clamping body 3 is released, allowing it to clamp the tabletop with the first clamping body 2. This implementation may result in the hand being pinched. As an optional embodiment, in order to enable the outward pulling of the second clamping body 3 on the base 1, a push-pull member 5 is also included. One side end face of the base 1 is provided with a push-pull groove 15, which is a long groove opened along its length on the upper end 105 surface of the base 1. One end of the push-pull member 5 passes through the push-pull groove 15 and is fixedly connected to the elastic telescopic member 4 located inside the telescopic cavity 12. One side of the elastic telescopic member 4 is provided with a limiting block 43, which can abut against the end of the telescopic cavity 12 to limit the telescopic stroke. The bottom of the telescopic cavity 12 is provided with a limiting slide groove 16. One side of the elastic telescopic member 4 is shaped as follows: The limiting part 44 is preferably composed of bolts that fix the upper and lower parts of the drag member. Of course, the limiting part 44 can also be a single protruding part located at the bottom of the elastic telescopic member 4. The limiting part 44 slides within the limiting groove 16 to limit the telescopic stability of the elastic telescopic member 4, prevents shaking during telescopic sliding, and enhances the telescopic stability of the elastic telescopic member 4. Specifically, the push-pull member 5 is provided with a protrusion 51 facing the push-pull direction, and the end face of the push-pull member 5 is provided with anti-slip texture 52. Through the protrusion 51, the thumb can easily push the protrusion 51 towards the front end 103, that is, push the second clamping body 3 outward, thereby avoiding pinching the hand, while resisting the elastic force of the tension spring 14 with the greatest force, and adapting to a thicker tabletop (the tabletop here is only one embodiment, more often referred to as the clamping target, which can be a flat plate, a tube, or a protruding part).

[0038] Specifically, the first clamping body 2 includes clamping rotating frames 22 located on both sides, a first rotating shaft 23 located at the bottom of the two clamping rotating frames 22, and an elastic latch 24 located on the upper part of the two clamping rotating frames 22. The elastic latch 24 is hinged to one of the clamping rotating frames 22 and elastically abuts against the other clamping rotating frame 22. The elastic latch 24 can be connected to the clamping rotating frame 22 through a structure such as a torsion spring 241, and the other end is engaged through a convex-concave structure. The elastic latch 24 helps the first clamping body 2 to form a carabiner structure or hook relative to the base 1. The structure allows mountaineering enthusiasts to hang the tripod on their backpacks after taking photos and continue hiking. A C-shaped clamp 25 is fixedly installed at the end of the base. The outer side of the C-shaped clamp 25 forms a second shaft hole 251 for the first rotating shaft 23 to rotate and connect. The clamping frames 22 on both sides form a hinge relationship through the first rotating shaft 23 and the second shaft hole 251. This hinge relationship can be formed by using a washer or an eccentric tube to make the hinge structure a damped hinge. Of course, the hinge structure here can also be directly achieved by bolts and damping washers.

[0039] This utility model also discloses a tripod support frame 20A, characterized in that it includes the clamping device 10A described above, with legs 6 hingedly mounted on both sides of the base 1, and a mobile phone carrying component 8 mounted on the other end of the base 1 via a transition assembly 7. Preferably, the transition assembly 7 is a folding component, including a first folding member 71, a second folding member 72, and an adapter 9. The adapter 9 is mounted on one end of the base 1, and the adapter 9 has a first hinge portion 91 for hinged with the legs 6 and a second hinge portion 92 for hinged with the first folding member 71. The adapter 9 is in a triangular connection relationship, with both sides connected to the legs 6 and the rear end 104 hinged to the first folding member 71. The other end of the first folding member 71 is hinged to the second folding member 72, and the other end of the second folding member 72 is hinged to the mobile phone carrier component 8. Preferably, all hinges are damped hinges, and the hinges can be achieved by bolts and plastic washers. In an optional embodiment, the adapter component 7 can also be a flexible bracket such as a flexible tube bracket, a flexible bracket with a metal sheet coated with rubber, or a bracket with only one folding member. The mobile phone carrier component 8, as a carrier device for connecting electronic product terminals, can be a mobile phone clip, a magnetic bracket, or a mobile phone clip or ball joint connection component. In order to facilitate the storage of the adapter component 7, the first folding member 71 has a storage slot 711 for storing the second folding member 72.

[0040] In an optional embodiment, the first hinge portion 91 and the outer shell end face of the base 1 together form a first inclined surface 911. The first inclined surface 911 forms an obtuse angle with the length direction of the base 1. The support leg 6 is provided with a second inclined surface 61 corresponding to the position of the first inclined surface 911. The first inclined surface 911 and the side of the base 1 form a storage area 17 for the support leg 6 to be inserted. The supporting end of the support leg 6 can rotate around the axis to form a triangular support frame with the base 1. When the support leg 6 is stored in the storage area 17, it can be completely embedded in the storage area 17 and form a complete handheld body with the base 1. This is beneficial for carrying or for easy hand grip when used as a selfie stick. In an optional embodiment, in order to limit the rotation angle of the support leg 6, the support leg 6 is located at the position of the second inclined surface 61. A limiting groove 61a is provided, and a limiting protrusion 911a is provided on the first inclined surface 911 at the position corresponding to the limiting groove 61a. The support leg 6 limits the rotation angle of the support leg 6 through the cooperation of the limiting protrusion 911a and the limiting groove 61a. Preferably, the limiting groove 61a is an arc-shaped groove located at the upper part of its shaft hole. The arc-shaped groove limits the rotation angle of the support leg 6 on the base 1, so that it has a positioning point other than the damping force. These are the two bottom positions of the limiting groove 61a, which respectively limit the support leg 6 to be level with the base 1 (embedded in the storage area 17) or to form a stable triangular support frame structure with respect to the base 1. Of course, in optional embodiments, the positions of the limiting groove 61a and the limiting protrusion 911a on the first inclined surface 911 and the second inclined surface 61 can be interchanged.

[0041] This utility model provides a clamping device 10A and a triangular support frame with the clamping device 10A. The first clamping body 2 and the second clamping body 3 can be clamped together. The second clamping body 3 can also be folded from the avoidance part 21 of the first clamping body 2 to facilitate the supporting function of the first clamping body 2 relative to the base 1. It can be used alone or in conjunction with other legs 6 to form a triangular support frame, which is suitable for desktop photography and live streaming. The first clamping body 2 also has a locking function, which can be used as a hook with a lock when not in use for mountaineering photography. When the first clamping body 2 and the base 1 are laid flat, a selfie stick-like device can also be obtained, truly realizing multiple uses in one piece.

[0042] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A clamping device, comprising a base, a first clamping body, and a second clamping body, characterized in that, The first clamping body is hinged to the end of the base. The base is elastically telescopically mounted with an elastic telescopic member. The end of the elastic telescopic member is hinged to the second clamping body. The second clamping body can be elastically stretched relative to the base through the elastic telescopic member. The first clamping body has two states relative to the base: approximately perpendicular and approximately free. The second clamping body has two states relative to the elastic telescopic member: approximately perpendicular and folded. When the first clamping body is approximately perpendicular and the second clamping body is elastically stretched and approximately perpendicular, this clamping device can be used for clamping. When the first clamping body is relatively free and the second clamping body is inelastically stretched and folded, this clamping device can be used to form a support frame or hanger.

2. The clamping device as described in claim 1, characterized in that, The first clamping body has a clearance portion through which the second clamping body passes when it folds back or is elastically stretched outward.

3. The clamping device as described in claim 2, characterized in that, The base has a first abutting part at its end, and the first clamping body has a second abutting part and a third abutting part. When the second abutting part or the third abutting part abuts with the first abutting part, the first clamping body and the base are in a roughly perpendicular state. When neither the second abutting part nor the third abutting part abuts with the first abutting part, the first clamping body and the base are in a roughly free state.

4. A clamping device as described in claim 2, characterized in that, The end of the elastic telescopic member is provided with a first bearing seat, and the lower end of the second clamping body is provided with a hinge ear and a first stop surface. The second clamping body is hinged to the hinge ear through the first shaft holes at both ends of the first bearing seat. The first bearing seat is provided with a second stop surface and a third stop surface in sequence. The second stop surface is parallel to the stretching surface of the elastic telescopic member, and the third stop surface is approximately perpendicular to the stretching surface of the elastic telescopic member. When the first stop surface and the third stop surface abut, the second clamping body and the elastic telescopic member are in a approximately perpendicular state. When the first stop surface and the second stop surface abut, the second clamping body and the elastic telescopic member are in a folded state.

5. A clamping device as described in claim 2, characterized in that, The base has a telescopic cavity on its inner side and an extension opening at its end. A tension spring is fixed inside the telescopic cavity, and the other end of the tension spring is fixedly connected to an elastic telescopic member. The end of the elastic telescopic member extends through the extension opening and is hinged to the second clamping body.

6. A clamping device as described in claim 1, characterized in that, It also includes a push-pull component. One end face of the base is provided with a push-pull groove. One end of the push-pull component passes through the push-pull groove and is fixedly connected to an elastic telescopic component located inside the telescopic cavity. One side of the elastic telescopic component is provided with a limiting block. The limiting block can abut against the end of the telescopic cavity to act as a telescopic limit. The bottom of the telescopic cavity is provided with a limiting slide groove. One side of the elastic telescopic component forms a limiting part. The limiting part slides and extends within the limiting slide groove. The push-pull component is provided with a protrusion facing the push-pull direction, and anti-slip texture is provided on the end face of the push-pull component.

7. A clamping device as described in claim 1, characterized in that, The first clamping body includes clamping rotating frames on both sides, a first rotating shaft at the bottom of the two clamping rotating frames, and an elastic latch at the top of the two clamping rotating frames. The elastic latch is hinged to one of the clamping rotating frames and elastically abuts against the other clamping rotating frame. A C-shaped clamp is fixedly installed at the end of the base. A second shaft hole is formed on the outer side of the C-shaped clamp for the first rotating shaft to rotate and connect. The clamping rotating frames on both sides are hinged through the first rotating shaft and the second shaft hole.

8. A triangular support frame, characterized in that, The device includes the clamping device according to any one of claims 1-7, wherein the base is hingedly mounted with legs on both sides, and the rear end of the base is mounted with a mobile phone carrying component via a transition assembly.

9. A triangular support frame as described in claim 8, characterized in that, The adapter assembly is a foldable component, including a first folding member, a second folding member, and an adapter. The adapter is installed at one end of the base. The adapter has a first hinge portion for hinged with the support leg and a second hinge portion for hinged with the first folding member. The other end of the first folding member is hinged with the second folding member, and the other end of the second folding member is hinged with the mobile phone support component.

10. A triangular support frame as described in claim 9, characterized in that, The first hinge part and the outer shell end face of the base form a first inclined surface. The first inclined surface is at an obtuse angle to the length direction of the base. The support leg is provided with a second inclined surface at the position corresponding to the first inclined surface. The first inclined surface and the side of the base form a storage area for the support leg to be inserted. The supporting end of the support leg can rotate around the axis to form a triangular support frame with the base. When the support leg is stored in the storage area, it can be completely embedded in the storage area and form a complete body that is easy to hold with the base. The support leg is provided with a limiting groove at the position of the second inclined surface. The first inclined surface is provided with a limiting protrusion at the position corresponding to the limiting groove. The support leg limits the rotation angle of the support leg through the cooperation of the limiting protrusion and the limiting groove. The mobile phone bearing component is a magnetic bracket, a mobile phone clip, or a ball joint connection assembly.

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