Self-extending camera stand

Abstract

A self-extending camera stand comprises a stand frame, the frame body has a plurality of telescopic legs, the telescopic legs comprise an upper leg, a lower leg support rod and a cavity provided in the upper leg for the lower leg support rod to slide out; the end of the cavity extends a connecting pipe from the outer side of the upper leg to a liquid storage cylinder; the end of the liquid storage cylinder is provided with an air vent, a magnetic control valve is provided above the air vent, a floating plug is provided below the air vent, and the floating plug is placed in a bar extending from the bottom of the air vent. The present invention opens the air vent through the magnetic control valve, so that the lower leg support rod slides out of the upper leg without suction, and drives the liquid in the liquid storage cylinder to be drawn into the upper leg through the connecting pipe, and closes the air vent under the control of the magnetic control valve to achieve the sealing of the liquid storage cylinder, so that the lower leg support rod will not shrink under pressure, and will not be deformed, thereby achieving the fixation of the telescopic legs, without the need to manually adjust the telescopic legs, and is convenient and quick to use.

Description

Technical Field

[0001] The present invention relates to a camera bracket, in particular to a self-extending camera bracket, belonging to the technical field of IPC classification F16M. Background Art

[0002] When taking photos, the camera usually uses a bracket to fix the lens, that is, the camera is placed and fixed on the platform of the bracket. The bracket is divided into a multi-section pull rod structure and a folding structure. Relatively speaking, it is more convenient to carry after being retracted or folded. When using, just open the legs of the bracket and place it on the ground or an object, and then install the camera.

[0003] However, at present, no matter how many legs the existing bracket has, whether it is telescopic or foldable, when it is placed on the ground or on an object, it is still necessary to manually adjust the length and inclination of each leg to achieve stability and angle requirements when the camera is framing. This makes the adjustment of the existing bracket very troublesome, because the change in the length of one of the legs will cause the instability of the entire platform, and after the leg is fixed with a buckle, the other leg needs to be adjusted. The adjustment requires an objective comparison by the adjuster, and if the adjustment is inaccurate, it needs to be readjusted, which is very troublesome. Summary of the invention

[0004] The purpose of the present invention is to solve the various troubles and overall structural deficiencies caused by the use and adjustment of the existing camera bracket, and to provide a self-expanding camera bracket.

[0005] The technical solution to the problem to be solved by the present invention is as follows:

[0006] The self-extending camera stand comprises a stand frame, wherein the stand frame has a plurality of telescopic legs, and the characteristics are:

[0007] The telescopic leg includes an upper leg, a lower leg support rod that can slide out freely from the upper leg without suction, and a cavity in the upper leg for the lower leg support rod to slide out; the end of the cavity extends a connecting pipe from the outer side of the upper leg to a liquid storage cylinder; an air vent is provided at the end of the liquid storage cylinder, a magnetic control valve is provided above the air vent, and a float plug is provided below the air vent, and the float plug is placed in a bar extending from below the air vent.

[0008] The end perimeter sealing ring of the lower leg support rod.

[0009] The liquid storage cylinder is provided with hydraulic chambers corresponding to the number of telescopic legs, each hydraulic chamber is provided with a magnetic control valve, and a pressure sensor is provided below the magnetic control valve.

[0010] There are multiple vent holes, and only one magnetic control valve is arranged above the multiple vent holes.

[0011] The beneficial effects of the present invention are as follows:

[0012] The present invention opens the vent hole through the magnetic control valve, so that the lower leg support rod slides out of the upper leg part without suction, and drives the liquid in the liquid storage cylinder to be drawn into the upper leg part through the connecting pipe, and then closes the vent hole under the control of the magnetic control valve to achieve the sealing of the liquid storage cylinder, so that the lower leg support rod will not shrink under pressure, and will not be deformed.

[0013] The present invention can quickly fix the telescopic legs without the need to manually adjust the telescopic legs, and is convenient and quick to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the appearance of the present invention;

[0015] Figure 2 yes Figure 1 Schematic cross-sectional view of ;

[0016] Figure 3 It is a structural schematic diagram of the liquid storage cylinder of the present invention;

[0017] Figure 4 It is a reference diagram of the use status of the present invention. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] See also Figures 1 to 3 A self-extending camera stand comprises a stand body 1, the stand body 1 has a plurality of telescopic legs 2, the telescopic legs 2 include an upper leg portion 3, a lower leg support rod 4 which can slide out freely from the upper leg portion 3 without suction, and a cavity 5 provided in the upper leg portion for the lower leg support rod 4 to slide out; a connecting pipe 6 is extended from the outer side of the upper leg portion 3 to a liquid storage cylinder 7 at the end of the cavity 5; a vent hole 8 is provided at the end of the liquid storage cylinder 7, a magnetic control valve 9 is provided above the vent hole 8, a float plug 10 is provided below the vent hole 8, and the float plug 10 is placed in a bar 11 extending from the bottom of the vent hole 8.

[0020] The switch of the magnetic control valve 9 is arranged outside the liquid storage cylinder 7 , and the power supply can be arranged in the frame platform 14 of the bracket frame 1 .

[0021] The implementation principle of the present invention is as follows:

[0022] Continue reading Figure 2 And additional references Figure 4 , Figure 4 The following is a representative scene with stone A on the ground. Figure 4 In the illustrated scenario, the lengths of the lower leg support rods 4 of the plurality of telescopic legs extending from the upper leg portion 3 are different.

[0023] When in use, the user unfolds the telescopic legs 2 from the side of the frame 1, and holds the frame platform 14 with hand B to a certain height in the air. Then, the magnetic control valve 9 is opened, so that the liquid storage cylinder 7 is connected to the outside through the vent hole 8, and the top of the lower leg support rod 4 loses the suction effect, slides out of the cavity 5 of the upper leg 3, and draws the liquid in the liquid storage cylinder 7 into the cavity 5. When the lower leg support rod 4 of all the legs of the telescopic legs 2 touches the ground or stone A below, the magnetic control valve 9 is closed, and the liquid storage cylinder 7 is sealed. At this time, the air pressure in the liquid storage cylinder 7 suppresses the liquid level, so that the lower leg support rod 4 will not retract into the upper leg 3 due to the pressure of the weight of the support frame 1, thus completing the purpose of self-extension of the telescopic legs of the support.

[0024] After use, the camera is removed from the frame 1, and then the magnetic control valve 9 is opened, and then the lower leg support rod 4 is pressed back into the upper leg 3. In this process, the liquid flows back into the liquid storage cylinder 7 through the connecting tube 6, and with the further compression of the lower leg support rod 4, the liquid surface in the liquid storage cylinder 7 rises, and the rise drives the float 10 to float up in the bar 11, and floats up to block the vent 8. At this time, the volume design of the cavity 5 is just enough to make the liquid level in the liquid storage cylinder 7 float the float 10 to block the vent 8. Then close the magnetic control valve 9.

[0025] Furthermore, as an improvement to the implementation method, a sealing ring 12 is circumferentially sleeved on the outer side of the end of the lower leg support rod 4 .

[0026] The sealing ring plays a certain sealing effect, and can reduce the cost of making the lower leg support rod matching the upper leg part without leaking. Of course, the sealing ring will have a little obstruction when the lower leg support rod slides in the cavity 5, and as compensation, the weight of the lower leg support rod end can be increased.

[0027] Furthermore, as an improvement to the implementation method, the liquid storage cylinder 7 is provided with hydraulic chambers 13 corresponding to the number of telescopic legs, each hydraulic chamber is provided with a magnetic control valve (not marked in the figure), and a pressure sensor (not marked in the figure) is provided below the magnetic control valve (not marked in the figure).

[0028] The liquid storage cylinder 7 is divided into chambers, which can reduce the influence of the liquid surface tilting caused by the tilting of the frame platform 14 to a great extent.

[0029] As a further extension of the structure, the liquid storage cylinder 7 may no longer store liquid, and a pressure sensor may be used to control the opening and closing of the magnetic control valve through the flow of air flow.

[0030] Furthermore, as an improvement to the implementation method, there are multiple vent holes 8, and only one magnetic control valve 9 is arranged above the multiple vent holes.

[0031] In the present invention, the vent hole 8 can correspond to the number of telescopic legs, and there is a certain distance between the vent hole 8 and the magnetic control valve 9. This distance can prevent the liquid from flowing out of the liquid storage cylinder when the magnetic control valve 9 is opened and the frame platform 14 is tilted. In addition, for the outflow of liquid, we can also use a syringe to inject water and liquid into the interior through the magnetic control valve 9.

Claims

1. A self-extending camera stand, comprising a stand body, the stand body having a plurality of telescopic legs, characterized in that: The telescopic leg comprises an upper leg, a lower leg support rod which can slide out freely from the upper leg without suction, and a cavity in the upper leg for the lower leg support rod to slide out; a connecting pipe extends from the outer side of the upper leg to a liquid storage cylinder at the end of the cavity; an air vent is provided at the end of the liquid storage cylinder, a magnetic control valve is provided above the air vent, and a float plug is provided below the air vent, and the float plug is placed in a bar extending from the bottom of the air vent; when in use, the user unfolds the telescopic leg from the side of the frame, holds the frame platform in the air, and then opens the magnetic control valve, so that the liquid storage cylinder is connected to the outside through the air vent, the top end of the lower leg support rod loses suction, slides out of the cavity of the upper leg, and the liquid in the liquid storage cylinder is drawn into In the cavity, when the lower leg support rods of all the telescopic legs touch the ground or stone below, the magnetic control valve is closed, the liquid storage cylinder is sealed, and the air pressure in the liquid storage cylinder suppresses the liquid surface, so that the lower leg support rod will not be retracted into the upper leg due to the pressure of the weight of the support frame, thus completing the purpose of self-extension of the telescopic legs of the support; after use, the magnetic control valve is opened, the lower leg support rod is pressed back into the upper leg, and the liquid flows back into the liquid storage cylinder through the connecting pipe, and with the further compression of the lower leg support rod, the liquid surface in the liquid storage cylinder rises, and the rise drives the float to float up in the bar, and the floating plug blocks the vent hole. The volume design of the cavity hole just makes the liquid surface in the liquid storage cylinder block the vent hole with the float, and then the magnetic control valve is closed to complete the storage of the lower leg support rod; The switch of the magnetic control valve is arranged on the outside of the liquid storage cylinder, and the power supply is arranged in the frame platform of the bracket frame; the liquid storage cylinder is arranged in chambers, and the liquid storage cylinder is provided with hydraulic chambers corresponding to the number of telescopic legs, each hydraulic chamber is provided with a magnetic control valve, and a pressure sensor is provided below the magnetic control valve; The vent holes correspond to the number of telescopic legs, and there is a gap between the vent holes and the magnetic control valve to prevent liquid from flowing out of the liquid storage cylinder when the magnetic control valve is opened and the frame platform is tilted; A sealing ring is circumferentially sleeved on the outer side of the end of the lower leg support rod.

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