Camera stand pressurization system

Abstract

The camera support pressurization system includes a frame body, which has a plurality of retractable legs, and is characterized in that: a pressurization chamber is provided below the support, and an air pressure pump is provided on one side of the pressurization chamber, and the air pressure pump is connected to the top of the pressurization chamber; the pressurization chamber includes a plurality of connecting pipes provided at the bottom and connected to the inner tube cavity of the legs, and the pipe mouths of the connecting pipes are provided with magnetic control valves, and a pressure sensor is also provided on one side of the magnetic control valve; the main switch of the air pressure pump, the magnetic control valve and the pressure sensor is provided at the hinge of the legs, which is opened when the legs are extended to the periphery and closed when the legs are closed to the center. The legs of the present invention are extended by pressurization of the air pressure pump, and when the legs encounter resistance during extension, the pressure sensor measures the pressure change, and directly or indirectly controls the magnetic control valve to cut off the air pressure from the pressurization chamber, so that the legs are extended and maintained in an extended state, and the legs do not need to be manually touched, and are automatically adjusted according to the contact surface, which saves time and labor, and is convenient and quick to use.

Description

Technical Field

[0001] The invention relates to a camera support pressurization system. Background Art

[0002] A camera stand is an important tool for stabilizing a camera. It is usually foldable or retractable and has three legs that are spread out and placed on the ground or an object. The camera is placed on the stand to keep it stable while shooting.

[0003] However, when the existing bracket is placed on the ground or on an object, the length and inclination of each leg need to be adjusted manually to achieve the stability required when the camera is framing. This is more troublesome because the change in the length of one leg will cause the change of another leg. To adjust one leg, the button must be turned off first to lock the leg, and then the other legs can be adjusted. The button always needs to be turned on and off, 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 camera bracket pressurization system.

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

[0006] A camera stand pressurizing system includes a stand body having a plurality of retractable legs, and is characterized in that:

[0007] A pressurized chamber is provided below the support, and an air pressure pump is provided on one side of the pressurized chamber, and the air pressure pump is connected to the top of the pressurized chamber;

[0008] The pressurized chamber includes a plurality of connecting pipes arranged at the bottom and connected to the inner tube cavity of the supporting leg, the pipe openings of the connecting pipes are provided with magnetic control valves, and a pressure sensor is also provided on one side of the magnetic control valve;

[0009] The main switch of the air pressure pump, the magnetic control valve and the pressure sensor is arranged at the hinge of the outrigger, which is opened when the outrigger is spread out to the periphery and closed when the outrigger is closed to the center.

[0010] The pressurized chamber is divided into an upper and a lower layer, which are separated by a rubber plug placed in the middle. The upper layer is communicated with the pressurized port of the air pressure pump, and the lower layer is provided with liquid for pressurization.

[0011] The magnetic control valve and the pressure sensor are connected to a circuit. The pressure sensor sends a signal which is converted by the circuit to control the magnetic control valve to cut off the connection between the support leg and the connecting pipe.

[0012] The beneficial effects of the present invention are as follows:

[0013] The outriggers are extended by pressurizing with an air pump. When the outriggers encounter resistance during extension, the pressure sensor measures the pressure change and directly or indirectly controls the magnetic control valve to cut off the air pressure from the pressurized chamber, allowing the outriggers to complete extension and remain in the extended state. The outriggers do not require manual contact and are automatically adjusted according to the contact surface, saving time and effort and being 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 is a schematic structural diagram of the pressurized chamber;

[0016] Figure 3 It is a reference diagram of the use status of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] See also Figure 1 , Figure 2 The camera support pressurization system comprises a support body 1, the support body 1 has a plurality of retractable legs 2, a pressurization chamber 3 is provided below the support body 1, a pressure pump 4 is provided on one side of the pressure chamber 3, and the pressure pump 4 is connected to the top of the pressure chamber 3;

[0019] The pressurized chamber 3 includes a plurality of connecting pipes 6 arranged at the bottom and connected to the inner tube cavity 5 of the leg, and a magnetic control valve 7 is arranged at the pipe mouth of the connecting pipe 6, and a pressure sensor 8 is also arranged on one side of the magnetic control valve 7;

[0020] The main switch 9 of the air pressure pump 4, the magnetic control valve 7 and the pressure sensor 8 is arranged at the hinge of the legs, which is opened when the legs are spread out to the periphery and closed when the legs are gathered to the center.

[0021] The main switch 9 includes a top button 91, a spring 92 is sleeved below the top button 91, and a power base corresponds to the end of the top button 91. The power base includes a top contact 93 and a top spring 95 placed between the top contact 93 and the power hollow contact 94.

[0022] In the present invention, when the legs are gathered toward the center, the side of the legs pushes against the top button 91, and the top button 91 retracts, and its tip touches the top contact 93, so that the top contact 93 touches the power hollow contact 94, thus achieving a circuit. When the legs are unfolded, the top button 91 pops out under the action of the spring 92, and the top contact 93 is separated from the power hollow contact 94 under the action of the top spring 95, thus achieving a circuit break.

[0023] The implementation principle of the present invention is as follows:

[0024] Additional References Figure 3 , Figure 3Shown is a scene with a stone A on the ground. In this scene, a plurality of telescopic legs extend to different lengths from the ground.

[0025] When in use, the user unfolds the leg 2 from the frame 1, turns on the main switch 9, energizes and turns on the air pressure pump 4 and the magnetic control valve 7, energizes and turns on the pressure sensor 8, and holds the frame 1 of the bracket in the air with hand B. The air pressure pump 4 charges the pressurized chamber 3, and the pressurized chamber 3 transmits the increased pressure to the inner tube cavity 5 of the leg through the connecting tube 6. The leg tube 11 retracted in the leg 2 slowly extends outward under the input pressure.

[0026] When the leg tube 11 extends to stone A or the ground and encounters resistance, the air pressure in the inner tube cavity 5 of the leg is equal to the air pressure input into the pressurized chamber 3. At this time, the pressure sensor 8 senses the change in air pressure and directly or indirectly controls the closing of the magnetic control valve 7, cutting off the pipeline of the pressurized chamber 3 inputting the connecting tube 6, and sealing the connecting tube 6 and the corresponding inner tube cavity 5 of the leg, so that the extended length of the leg is fixed, and then the camera can be installed.

[0027] Here, it should be noted that the selected air pressure pump 4 is a small air pressure pump, that is, when hand B holds the frame 1 of the bracket in the air, when the leg tube 11 extends and encounters resistance, the leg tube 11 may continue to extend and then rebound, but here it is only necessary for hand B to remain at a height for a short period of time. Therefore, as long as force is applied downward, the resistance is fed back to the inside, so that the air pressure can be easily captured by the pressure sensor 8, so that the magnetic control valve 7 will cut off the air path in a very short time.

[0028] When not in use, remove the camera and gather the legs 2 toward the center. At this time, the upper side walls of the legs 2 will touch the main switch 9 to retract the top button of the main switch, the air pump 4 and the pressure sensor 8 will be disconnected, and the magnetic control valve 7 will be opened and disconnected under the control of the circuit. Then, the extended leg tube 11 can be pressed back into the leg 2 by hand.

[0029] The magnetic control valve is opened and then disconnected after the main switch 9 is closed, which can be achieved by a reverse power supply circuit with a capacitor.

[0030] Furthermore, as an improvement to the implementation method, the pressurized chamber 3 is divided into two layers, an upper layer and an lower layer, separated by a rubber plug 10 placed in the middle, the upper layer is connected to the pressurized port of the air pump 4, and the lower layer is provided with a pressurized liquid.

[0031] In the present invention, the pneumatic extension of the leg tubes 11 can also be converted into hydraulic extension of the leg tubes.

[0032] Further, as an improvement to the implementation, the magnetic control valve 7 and the pressure sensor 8 are connected to a circuit (not shown), and the pressure sensor 8 sends a signal which is converted by the circuit to control the magnetic control valve 7 to cut off the connection between the leg and the connecting pipe 6. The circuit can be integrated into a circuit board and can be directly connected to a power source.

[0033] The power supply of the above embodiment can be provided by a battery placed inside the platform of the frame above the pressurized chamber 3 .

Claims

1. A camera stand pressurizing system, comprising a stand body, the stand body having a plurality of retractable legs, characterized in that: A pressurized chamber is provided below the support, and an air pressure pump is provided on one side of the pressurized chamber, and the air pressure pump is connected to the top of the pressurized chamber; the pressurized chamber includes a plurality of connecting pipes provided at the bottom and connected to the inner tube cavity of the support leg, and a magnetic control valve is provided at the pipe mouth of the connecting pipe, and a pressure sensor is also provided on one side of the magnetic control valve; The main switch of the air pressure pump, magnetic control valve and pressure sensor is set at the hinge of the outrigger, which is turned on when the outrigger is spread out to the periphery and closed when the outrigger is closed to the center; The main switch includes a top button, a spring is sleeved under the top button, and a power base corresponds to the end of the top button. The power base includes a top contact, and a top spring is placed between the top contact and the hollow contact of the power source. When the legs of the top button are gathered toward the center, the side of the legs presses against the top button, and the top button retracts, and its end touches the top contact, so that the top contact touches the hollow contact of the power source, thereby realizing a passage. When the legs are unfolded, the top button pops out under the action of the spring, and the top contact is separated from the hollow contact of the power source under the action of the top spring, thereby realizing a circuit breaker. When in use, the legs are unfolded from the frame, and the air pump pressurizes the pressurized chamber. The pressurized chamber transmits the increased pressure to the inner tube cavity of the legs through the connecting pipe. The leg tube retracted in the legs slowly extends outward under the action of the input pressure. When the leg tube extends to the stone or the ground and encounters resistance, the air pressure in the inner tube cavity of the legs is equal to the air pressure input into the pressurized chamber. At this time, the pressure sensor senses the change in air pressure and directly or indirectly controls the closing of the magnetic control valve, cutting off the pipeline from the pressurized chamber to the connecting pipe, and sealing the connecting pipe and the corresponding inner tube cavity of the leg, so that the extended length of the leg is fixed.

2. The camera bracket pressurization system according to claim 1, characterized in that: The pressurized chamber is divided into an upper and a lower layer, which are separated by a rubber plug placed in the middle. The upper layer is communicated with the pressurized port of the air pressure pump, and the lower layer is provided with liquid for pressurization.

3. The camera bracket pressurization system according to claim 1, characterized in that: The magnetic control valve and the pressure sensor are connected to a circuit. The pressure sensor sends a signal which is converted by the circuit to control the magnetic control valve to cut off the connection between the support leg and the connecting pipe.

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