Anti-falling support and photography tripod

Abstract

The utility model discloses an anti-falling support which is used for fixing shooting equipment and comprises a support body and a locking mechanism, and the support body is provided with an inserting hole. The locking mechanism comprises an abutting piece arranged on the frame body, a driving piece driving the abutting piece to move towards the center of the inserting hole, and a locking piece used for locking the abutting piece to move. According to the utility model, the stability of shooting equipment can be improved. In addition, the utility model further discloses a photography tripod, and the photography tripod comprises the anti-falling support.

Description

Technical Field

[0001] The utility model relates to the field of photographic tripods, and particularly relates to an anti - detachment bracket and a photographic tripod. Background Technique

[0002] With the progress of industrial level and the improvement of people's living standards, the use of shooting devices such as cameras and video cameras in life is becoming more and more popular.

[0003] In order to conveniently adjust the height during shooting, the shooting device is generally fixed on a bracket (such as a tripod, etc.). The existing bracket is generally provided with an insertion hole, and a locking sleeve is arranged in the insertion hole. The mounting shaft on the shooting device is inserted into the insertion hole, and the angle of the shooting device is adjusted by adjusting the position of the mounting shaft in the insertion hole, and then the locking structure is used to fix the mounting shaft.

[0004] The existing locking structure is generally a screw - adjusting structure. The screw is screwed on the bracket, and the locking is achieved by rotating the screw to abut against the mounting shaft. Since this structure is locked only by screwing, during use, the screw is prone to loosen due to external vibrations and other reasons, thereby reducing the abutting force between the screw and the mounting shaft. Therefore, there is a phenomenon that the locking stability of the shooting device is not high. Content of the Utility Model

[0005] The main purpose of the utility model is to provide an anti - detachment bracket to solve the technical problems put forward in the background technique.

[0006] To achieve the above purpose, the anti - detachment bracket proposed by the utility model is used to fix a shooting device. The anti - detachment bracket includes a frame body and a locking mechanism. The frame body has an insertion hole. The locking mechanism includes an abutting member arranged on the frame body, a driving member for driving the abutting member to move towards the center of the insertion hole, and a locking member for locking the movement of the abutting member.

[0007] Preferably, the frame body is provided with a first connection hole communicating with the insertion hole. The abutting member includes a column body, which successively includes an abutting section, a first connection section, and a second connection section. The abutting section faces the insertion hole. The first connection section is screwed into the first connection hole. The driving member is connected to the second connection section and is used to drive the second connection section to rotate. The locking member is used to limit the rotation of the abutting member.

[0008] Preferably, at least one first guiding edge is provided on the second connecting section along the axial direction of the first connecting hole. The driving member is a knob sleeved on the second connecting section, and the knob has a first sliding groove fitted with the first guiding edge. The locking member includes a first limiting structure provided on the frame body and a second limiting structure provided on the knob. The second limiting structure can be docked with the second limiting structure after the knob moves towards the insertion hole to limit the rotation of the knob.

[0009] Preferably, both the first limiting structure and the second limiting structure are toothed discs that can mesh with each other.

[0010] Preferably, the locking mechanism further includes a first elastic member for driving the second limiting structure to move and dock with the first limiting structure.

[0011] Preferably, a retaining piece is provided at the end of the second connecting section. The first elastic member is a spring sleeved on the second connecting section, and both ends of the spring are respectively connected to the retaining piece and the knob.

[0012] Preferably, a flexible sleeve is provided in the insertion hole.

[0013] Preferably, a first installation cavity communicating with the first connecting hole is provided on the inner wall of the insertion hole, and a push plate abutting against the outer side wall of the flexible sleeve is provided in the first installation cavity.

[0014] Preferably, the flexible sleeve includes a sleeve body and at least one abutting piece provided at the end of the sleeve body, and at least one abutting piece abuts against the push plate.

[0015] Preferably, there are two insertion holes on the frame body. Second installation cavities communicating with the two insertion holes respectively are provided on the frame body. The abutting member is an elastic plate, and both ends of the elastic plate respectively have an abutting portion. The elastic plate is located in the second installation cavity, and the two abutting portions are respectively inserted into the two insertion holes in one-to-one correspondence; a kidney-shaped hole is provided on the frame body. The driving member includes a movable column, a pull rod and a handle. The movable column is located in the kidney-shaped hole and can move in the kidney-shaped hole. One end of the pull rod is connected to the middle of the elastic plate, and the other end passes through the kidney-shaped hole and is connected to the movable column. The handle is rotatably connected to the movable column; the locking member includes a first spacing adjustment portion provided on the frame body and a second spacing adjustment portion provided on the handle. The second spacing adjustment portion has a first clamping position and a second clamping position. The first spacing adjustment portion abuts against the first clamping position and the second clamping position respectively to limit the rotation of the handle.

[0016] Preferably, the locking member further includes a second elastic member, which is a spring sleeved on the pull rod, and two ends of the spring are respectively abutted against the elastic plate and the movable column.

[0017] Preferably, the first spacing adjustment portion is a gear rotatably provided on the frame body, the first clamping position is a large tooth head that can be engaged with the gear, and the second clamping position is a small tooth head that can be engaged with the gear.

[0018] Preferably, the elastic plate includes a plate body and an adjustment sleeve. The two abutting portions are respectively located at two ends of the plate body. A second connection hole is provided in the middle of the plate body. One end of the pull rod passes through the second connection hole and is connected to the adjustment sleeve. The pull rod is screwed to the adjustment sleeve or the movable column, and the adjustment sleeve abuts against the plate body.

[0019] Preferably, one end of the pull rod is screwed to the movable column, and the other end of the pull rod is provided with a connection head. At least one second guiding edge is provided on the connection head. The adjustment sleeve is sleeved on the connection head, and a second sliding groove engaged with the second guiding edge is provided on the adjustment sleeve. A limiting cavity is provided in the second connection hole, and a limiting protrusion that can be embedded in the limiting cavity is provided on the adjustment sleeve. The elastic plate further includes a third elastic member, which is a spring sleeved on the connection head and connected to the connection head and the adjustment sleeve respectively; a retaining ring is provided at one end of the second connection hole close to the handle, and the adjustment sleeve is located in the second connection hole and abuts against the retaining ring.

[0020] The present invention further provides a photographic tripod, which includes an anti - detachment bracket for fixing a shooting device. The anti - detachment bracket includes a frame body and a locking mechanism. An insertion hole is provided on the frame body. The locking mechanism includes an abutting member provided on the frame body, a driving member for driving the abutting member to move towards the center of the insertion hole, and a locking member for locking the movement of the abutting member.

[0021] The anti - detachment bracket provided by the embodiment of the present invention locks the driving member by using the locking member, which is beneficial to preventing the abutting member from moving after reaching the abutting position, thereby improving the stability of the bracket for fixing the shooting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of an embodiment of the anti - detachment bracket in the present invention;

[0023] Figure 2 is Figure 1 a cross - sectional view of the anti - detachment bracket shown in

[0024] Figure 3 is Figure 3 a schematic structural diagram of the abutting member shown in

[0025] Figure 4 is a sectional view of the locking mechanism shown in Figure 1 ;

[0026] Figure 5 is a schematic structural diagram of the locking member shown in Figure 2 ;

[0027] Figure 6 is a schematic structural diagram of the driving member shown in Figure 4 ;

[0028] Figure 7 is a schematic structural diagram of the flexible sleeve and the push plate shown in Figure 2 ;

[0029] Figure 8 is a schematic structural diagram of another embodiment of the anti - detachment bracket in the present utility model;

[0030] Figure 9 is a schematic structural diagram of the frame body shown in Figure 8 ;

[0031] Figure 10 is a sectional view of the anti - detachment bracket shown in Figure 8 ;

[0032] Figure 11 is a schematic structural diagram of the plate body shown in Figure 10 ;

[0033] Figure 12 is a schematic structural diagram of the locking member and the wrench handle shown in Figure 10 ;

[0034] Figure 13 is a schematic structural diagram of the pull rod shown in Figure 10 ;

[0035] Figure 14 is a schematic structural diagram of the adjusting sleeve shown in Figure 10 ; Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element present at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present at the same time.

[0039] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0040] The present utility model provides an anti - detachment bracket for fixing a photographing device, such as Figure 1 and Figure 2As shown, the anti-loosening bracket includes a bracket body 100 and a locking mechanism 200. The bracket body 100 is provided with an insertion hole 110. The locking mechanism 200 includes an abutting member 210 arranged on the bracket body 100, a driving member 220 for driving the abutting member 210 to move towards the center of the insertion hole 110, and a locking member 230 for locking the movement of the abutting member 210. Among them, the bracket body 100 can be set with reference to an existing tripod. The shape and size of the insertion hole 110 can adopt a general specification to facilitate the application of conventional shooting equipment. The insertion hole 110 is used to install a mounting shaft connected to the photographic equipment, and the angle of the photographic equipment is adjusted by adjusting the angle of the mounting shaft in the insertion hole 110. The abutting member 210 can be directly arranged in the insertion hole 110 or on the periphery of the insertion hole 110, and the part of the mounting shaft inserted into the insertion hole 110 is fixed by abutting. The driving member 220 can directly drive the abutting member 210 to move to change the position of the abutting member 210, or indirectly drive the abutting member 210 to move to change the position of the abutting member 210, so that the abutting member 210 can abut against the part of the mounting shaft inserted into the insertion hole 110. The locking member 230 can restrict the movement of the abutting member 210 in a conventional manner when the driving member 220 drives the abutting member 210 to the abutting position. Specific ways include using forms such as pins and blocks, or restricting the movement of the driving member 220 to restrict the movement of the abutting member 210. In this embodiment, locking the abutting member 210 by using the locking member 230 is beneficial to preventing the abutting member 210 from moving after reaching the abutting position, thereby improving the stability of the bracket for fixing the shooting equipment.

[0041] In a preferred embodiment, as Figure 2 and Figure 3As shown, preferably, a first connection hole 120a communicating with the insertion hole 110 is provided on the frame body 100. The abutting member 210 includes a column body 211a, and the column body 211a successively includes an abutting section 212a, a first connection section 213a, and a second connection section 214a. The abutting section 212a is arranged facing the insertion hole 110. The first connection section 213a is screwed into the first connection hole 120a. The driving member 220 is connected to the second connection section 214a and is used to drive the second connection section 214a to rotate. The locking member 230 is used to restrict the rotation of the driving member 220. Among them, preferably, the extending direction of the first connection hole 120a is perpendicular to the extending direction of the insertion hole 110, and the first connection hole 120a has a thread. The abutting section 212a can be used to abut against the part of the photographing device inserted into the insertion hole 110. The first connection section 213a has a thread, so that the first connection section 213a can be screwed into the first connection hole 120a. By rotating the second connection section 214a, the position of the abutting section 212a can be changed, that is, the locking and releasing of the part of the photographing device inserted into the insertion hole can be realized. The driving member 220 drives the second connection section 214a to rotate, so as to facilitate driving the abutting section 212a to move in a rotating manner. When the driving member 220 drives the abutting section 212a to reach the abutting position, the locking member 230 restricts the rotation of the driving member 220.

[0042] In a preferred embodiment, as Figures 3 to 6 shown, preferably, at least one first guiding edge 215a is provided on the second connection section 214a along the axial direction of the first connection hole 120a. The driving member 220 is a knob sleeved on the second connection section 214a, and the knob has a first sliding groove 221a fitted with the first guiding edge 215a. The locking member 230 includes a first limiting structure 231a provided on the frame body 100 and a second limiting structure 232a provided on the knob. The knob is used to drive the second limiting structure 232a to move towards the first limiting structure 231a and dock with the first limiting structure 231a to restrict the rotation of the knob. Among them, preferably, the second connection section 214a is a polygonal prism, and the knob has a first sliding groove 221a adapted to the prism, so that the knob is limited to slide only in the length direction of the second connection section 214a and will drive the second connection section 214a to rotate when rotating. When locking is required, the second locking structure is separated from the first locking structure by sliding the knob, and then the second connection section 214a is driven to rotate, so that the position of the abutting section 212a can be changed to realize locking and releasing. After locking is completed, the knob is slid again to make the second limiting structure 232a dock with the first limiting structure 231a to prevent the knob from rotating.

[0043] In a preferred embodiment, as Figure 2 and Figure 5As shown, preferably, both the first limiting structure 231a and the second limiting structure 232a are toothed disks that can mesh with each other. The number of teeth of the toothed disks can be set according to actual conditions. By meshing the two toothed disks with each other, the rotation of the knob can be restricted. Preferably, the toothed disk has through holes to facilitate the column 211a to pass through and provide an avoidance space.

[0044] In a preferred embodiment, as Figure 2 and Figure 4 shown, preferably, the locking mechanism 200 further includes a first elastic member 240a for driving the second limiting structure 232a to move and dock with the first limiting structure 231a. Among them, preferably, the first elastic member 240a is a spring. At this time, a retaining piece 216a is provided at the end of the second connecting section 214a. The spring is sleeved on the second connecting section 214a, and the two ends of the spring are respectively connected to the retaining piece 216a and the knob. After pulling the knob to move, the second limiting structure 232a can be automatically docked with the first limiting structure 231a under the elastic force of the spring to achieve the locking of the knob.

[0045] In a preferred embodiment, as Figure 2 and Figure 7 shown, preferably, a flexible sleeve is provided in the insertion hole 110, so as to avoid hard contact between the part of the photographing device inserted into the insertion hole 110 and the inner wall of the insertion hole 110. Moreover, after the abutting section 212a abuts against the outer side wall of the abutting flexible sleeve 130a and then abuts against the part of the photographing device inserted into the insertion hole 110, it can also effectively prevent the abutting section 212a from damaging the part of the photographing device inserted into the insertion hole 110.

[0046] In a preferred embodiment, as Figure 2 and Figure 7 shown, preferably, a first installation cavity 150a communicating with the first connection hole 120a is provided on the inner wall of the insertion hole 110, and a push plate 140a abutting against the outer side wall of the flexible sleeve 130a is provided in the first installation cavity 150a. Among them, the push plate 140a can be preferably arc-shaped and can be directly bonded to the outer side wall of the flexible sleeve 130a. At this time, the abutting section 212a abuts against the part of the photographing device inserted into the insertion hole 110 by pushing the push plate 140a to move, which is beneficial to increasing the contact area and thus further improving the fixing stability.

[0047] In a preferred embodiment, as Figure 7As shown, preferably, the flexible sleeve 130a includes a sleeve body 131a and at least one abutting piece 132a disposed at the end of the sleeve body 131a, and at least one abutting piece 132a abuts against the push plate 140a. Among them, preferably, there are three abutting pieces 132a, which are spaced apart and disposed at the lower end of the sleeve body 131a, and one of the abutting pieces 132a is arranged in contact with the push plate 140a. So that when the abutting section 212a is used to push the push plate 140a to move, the abutting piece 132a deforms and abuts against the part of the photographing device inserted into the insertion hole 110.

[0048] In a preferred embodiment, the existing photographing device has two mounting shafts. To facilitate the fixing of the photographing device, as Figure 8 shown, preferably, the frame body 100 has two insertion holes 110, and the two insertion holes 110 are spaced apart by a preset distance on the frame body 100 for the two mounting shafts to be inserted respectively.

[0049] As Figures 9 to 11 shown, the frame body 100 is provided with second mounting cavities 120b respectively communicating with the two insertion holes 110. The abutting member 210 is an elastic plate, and both ends of the elastic plate respectively have an abutting portion 211b. The abutting portion 211b is an arc surface adapted to the mounting shaft to increase the abutting area and improve the fastening strength. The elastic plate is located in the second mounting cavity 120b, and the two abutting portions 211b are respectively inserted into the two insertion holes 110 in a one-to-one correspondence.

[0050] As Figure 8 、 Figure 9 and Figure 10 shown, the frame body 100 is provided with a waist-shaped hole 130b. The driving member 220 includes a movable column 221b, a pull rod 222b and a handle 223b. The movable column 221b is located in the waist-shaped hole 130b and can move in the waist-shaped hole 130b. One end of the pull rod 222b is connected to the middle of the elastic plate, and the other end passes through to the waist-shaped hole 130b and is connected to the movable column 221b. The handle 223b is rotatably connected to the movable column 221b. By pulling the movable column 221b to move in the waist-shaped hole 130b through the handle 223b, the pull rod 222b is driven to pull the elastic plate to deform, so that the abutting portion 211b is separated from the mounting shaft located in the insertion hole 110, and thus the height of the photographing device can be adjusted.

[0051] As Figure 12As shown, the locking member 230 includes a first spacing adjustment portion 231b provided on the frame body 100 and a second spacing adjustment portion 232b provided on the lever handle 223b. The second spacing adjustment portion 232b has a first clamping position 233b and a second clamping position 234b. The first spacing adjustment portion 231b abuts against the first clamping position 233b and the second clamping position 234b respectively to limit the rotation of the lever handle 223b. The first clamping position 233b and the second clamping position 234b may be concave cavities with different depths. During the rotation of the lever handle 223b, the first spacing adjustment portion 231b can be locked in the first clamping position 233b and the second clamping position 234b respectively, thereby driving the movable column 221b to move in the kidney-shaped hole 130b to deform the elastic plate, and finally controlling the abutting portion 211b to abut against and separate from the mounting shaft located in the insertion hole 110.

[0052] In a preferred embodiment, as Figure 10 shown, preferably, the locking member 230 further includes a second elastic member 235b. The second elastic member 235b is a spring sleeved on the pull rod 222b. The two ends of the spring abut against the elastic plate and the movable column 221b respectively. Among them, by using the elastic force of the spring to push the movable column 221b to move, the first spacing adjustment portion 231b can be more stably locked on the first clamping position 233b or the second clamping position 234b. At this time, the locked state is preferably the state where the abutting portion 211b abuts against the mounting shaft located in the insertion hole 110, which further improves the stability during locking.

[0053] In a preferred embodiment, as Figure 12 shown, preferably, the first spacing adjustment portion 231b is a gear rotatably provided on the frame body 100. The first clamping position 233b is a large tooth head that can mesh with the gear, and the second clamping position 234b is a small tooth head that can mesh with the gear. Among them, preferably, the first clamping position 233b and the second clamping position 234b are an integral arc-shaped plate. Tooth heads are provided on the arc-shaped surface of the arc-shaped plate. By using the characteristic that the distances from various parts of the arc-shaped surface of the arc-shaped plate to the rotation center of the lever handle 223b gradually increase, the movable column 221b can be driven to move in the kidney-shaped hole 130b during the rotation of the lever handle 223b.

[0054] In a preferred embodiment, as Figure 10As shown, preferably, the elastic plate includes a plate body 212b and an adjusting sleeve 213b. The two abutting portions 211b are respectively located at both ends of the plate body 212b. A second connection hole 214b is provided in the middle of the plate body 212b. One end of a pull rod 222b passes through the second connection hole 214b and is connected to the adjusting sleeve 213b. The pull rod 222b is screwed to the adjusting sleeve 213b or the movable column 221b, and the adjusting sleeve 213b abuts against the plate body 212b. Among them, preferably, threads are provided on the pull rod 222b. By rotating the adjusting sleeve 213b to drive the pull rod 222b to rotate, the screwed length of the pull rod 222b can be changed, so as to adjust the abutting force between the abutting portion 211b and the mounting shaft located in the insertion hole 110, thereby facilitating the adaptation and fastening of mounting shafts of different thicknesses.

[0055] In a preferred embodiment, as Figure 11 、 Figure 13 and Figure 14 shown, preferably, one end of the pull rod 222b is screwed to the movable column 221b, and a connection head 224b is provided at the other end of the pull rod 222b. A second guiding edge 225b is provided on the connection head 224b, specifically a multi-sided prism. The adjusting sleeve 213b is sleeved on the connection head 224b, and a second sliding groove 215b that fits with the second guiding edge 225b is provided on the adjusting sleeve 213b, specifically a polygonal hole. A limiting cavity 216b is provided in the second connection hole 214b, and a limiting protrusion 217b that can be embedded in the limiting cavity 216b is provided on the adjusting sleeve 213b. Preferably, both the limiting protrusion 217b and the limiting cavity 216b are multiple. The elastic plate further includes a third elastic member 218b, and the third elastic member 218b is a spring sleeved on the connection head 224b and connected to the connection head 224b and the adjusting sleeve 213b respectively. A retaining ring 219b is provided at one end of the second connection hole 214b close to the lever handle 223b. The adjusting sleeve 213b is located in the second connection hole 214b and abuts against the retaining ring 219b, so that the adjusting sleeve 213b continuously abuts against the plate body 212b. Among them, by sliding the adjusting sleeve 213b on the connection head 224b, the limiting cavity 216b can be separated from the limiting protrusion 217b to realize the rotation of the adjusting sleeve 213b. After releasing the adjusting sleeve 213b, the elastic force of the third elastic member 218b can drive the adjusting sleeve 213b to move, so that the limiting protrusion 217b is embedded in the limiting cavity 216b to realize the locking of the adjusting sleeve 213b and prevent the adjusting sleeve 213b from rotating.

[0056] The present utility model further provides a photographic tripod, which includes the anti-detachment bracket in the above embodiment. The specific structure of the anti-detachment bracket refers to the above embodiment. Since this photographic tripod adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0057] The above are only some or preferred embodiments of the present utility model. Neither the text nor the drawings can limit the scope of protection of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the concept of an integral whole of the present utility model, or any direct / indirect application in other related technical fields is included in the scope of protection of the present utility model.

Claims

1. An anti-drop bracket for fixing a photographing device, characterized in that: The anti-drop bracket includes a frame body and a locking mechanism, the frame body has an insertion hole, and the locking mechanism includes an abutment member arranged on the frame body, a driving member driving the abutment member to move toward the center of the insertion hole, and a locking member for locking the movement of the abutment member.

2. The anti-dropout bracket according to claim 1, characterized in that: The frame is provided with a first connecting hole connected to the insertion hole, the abutment member includes a column, and the column includes an abutment section, a first connecting section and a second connecting section in sequence, the abutment section is arranged toward the insertion hole, the first connecting section is screwed into the first connecting hole, the driving member is connected to the second connecting section and is used to drive the second connecting section to rotate, and the locking member is used to limit the rotation of the abutment member.

3. The anti-dropout bracket according to claim 2, characterized in that: At least one first guide edge is provided on the second connecting section along the axial direction of the first connecting hole, the driving member is a knob sleeved on the second connecting section, and the knob has a first sliding groove engaged with the first guide edge, the locking member includes a first limiting structure provided on the frame body and a second limiting structure provided on the knob, and the second limiting structure can be docked with the second limiting structure after the knob moves toward the insertion hole to limit the rotation of the knob.

4. The anti-dropout bracket according to claim 3, characterized in that: The first limiting structure and the second limiting structure are both gear plates that can mesh with each other.

5. The anti-dropout bracket according to claim 3, characterized in that: The locking mechanism also includes a first elastic member for driving the second limiting structure to move and dock with the first limiting structure.

6. The anti-dropout bracket according to claim 5, characterized in that: A blocking piece is provided at the end of the second connecting section, and the first elastic member is a spring sleeved on the second connecting section, and two ends of the spring are respectively connected to the blocking piece and the knob.

7. The anti-dropout bracket according to claim 2, characterized in that: A flexible sleeve is arranged in the insertion hole.

8. The anti-dropout bracket according to claim 7, characterized in that: A first installation cavity communicating with the first connection hole is disposed on the inner wall of the insertion hole, and a push plate abutting against the outer wall of the flexible sleeve is disposed in the first installation cavity.

9. The anti-dropout bracket according to claim 8, characterized in that: The flexible sleeve comprises a sleeve body and at least one abutting piece arranged at an end of the sleeve body, and at least one abutting piece abuts against the push plate.

10. The anti-dropout bracket according to claim 1, characterized in that: The frame body is provided with two insertion holes, and the frame body is provided with a second installation cavity which is respectively connected with the two insertion holes, the abutment member is an elastic plate, and the two ends of the elastic plate are respectively provided with an abutment portion, the elastic plate is located in the second installation cavity, and the two abutment portions are respectively inserted into the two insertion holes in a one-to-one correspondence; the frame body is provided with a waist-shaped hole, and the driving member includes a movable column, a pull rod and a trigger, the movable column is located in the waist-shaped hole and can move in the waist-shaped hole, one end of the pull rod is connected with the middle part of the elastic plate, and the other end is passed through the waist-shaped hole and connected with the movable column, and the trigger is rotatably connected with the movable column; the locking member includes a first spacing adjustment portion arranged on the frame body and a second spacing adjustment portion arranged on the trigger, the second spacing adjustment portion has a first clamping position and a second clamping position, the first spacing adjustment portion abuts with the first clamping position and the second clamping position respectively to limit the rotation of the trigger.

11. The anti-dropout bracket according to claim 10, characterized in that: The locking member further comprises a second elastic member, which is a spring sleeved on the pull rod, and two ends of the spring are respectively in contact with the elastic plate and the movable column.

12. The anti-dropout stent according to claim 11, characterized in that: The first spacing adjustment portion is a gear rotatably disposed on the frame, the first clamping position is a large tooth head that can mesh with the gear, and the second clamping position is a small tooth head that can mesh with the gear.

13. The anti-dropout stent according to claim 12, characterized in that: The elastic plate includes a plate body and an adjusting sleeve, the two abutting parts are respectively located at the two ends of the plate body, a second connecting hole is provided in the middle of the plate body, one end of the pull rod passes through the second connecting hole and is connected to the adjusting sleeve, the pull rod is screwed to the adjusting sleeve or the movable column, and the adjusting sleeve abuts against the plate body.

14. The anti-dropout stent according to claim 13, characterized in that: One end of the pull rod is threadedly connected to the movable column, and the other end of the pull rod is provided with a connecting head, and the connecting head is provided with at least one second guide edge, the adjusting sleeve is sleeved on the connecting head, and the adjusting sleeve is provided with a second sliding groove which is engaged with the second guide edge, a limiting cavity is provided in the second connecting hole, and the adjusting sleeve is provided with a limiting protrusion which can be embedded in the limiting cavity, the elastic plate also includes a third elastic member, and the third elastic member is a spring sleeved on the connecting head and connected to the connecting head and the adjusting sleeve respectively; a retaining ring is provided at one end of the second connecting hole close to the trigger, and the adjusting sleeve is located in the second connecting hole and abuts against the retaining ring.

15. A photographic tripod, characterized in that: It comprises the anti-detachment bracket as described in any one of claims 1 to 14.

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