CN206387923U - Detector gate - Google Patents

Abstract

A security inspection door, comprising two vertical vertical plates and a cross beam connected between the tops of the two vertical plates, the bottom of the vertical plates is telescopically connected to a support base in the vertical direction, the support base is provided with a bearing seat, the bearing The seat is rotated and connected with a vertically arranged screw, and the screw is threaded with an adjustment plate, and the adjustment plate is fixedly connected with the vertical plate. One end of the screw is connected with a driving motor through a shaft commutator, and the driving motor has a forward rotation switch and a reverse rotation The forward and reverse control circuit of the motor of the switch is controlled. When a tall group arrives, press the forward rotation switch, the forward and reverse control circuit of the motor will control the drive motor to rotate forward, and the shaft commutator will reverse the direction of the shaft, and then drive the screw to rotate on the bearing seat, driving the screw thread The adjustment plate connected to the screw rod moves upwards, and the adjustment plate drives the vertical plate fixedly connected with it to move upwards, thereby increasing the height of the crossbeam. Similarly, pressing the reverse switch lowers the height of the crossbeam to realize the height adjustment of the security door. Applicable to a wider range of people.

Description

security gate

technical field

The utility model relates to security inspection equipment, in particular to a security inspection door.

Background technique

Walk through metal detector is a detection device for detecting whether people carry metal objects, also known as metal detection gate (Archway metal detector), mainly used in airports, stations, large conferences and other public places with large flow of people To check the hidden metal objects on the human body, such as guns, controlled knives, etc.

The existing security gates only have a fixed height, generally two meters, which is suitable for most people, but for taller groups, such as tall basketball players, volleyball players, etc., when passing through the security gate , You need to bend over to pass, otherwise you will hit your head on the beam of the security gate, which will give people a bad experience and shortcomings.

Utility model content

The purpose of the utility model is to provide a safety inspection door, which has the advantages of adjustable height and wider applicability to people.

The above-mentioned purpose of the utility model is achieved through the following technical solutions:

A security inspection door, comprising two vertical vertical boards and a cross beam connected between the tops of the two vertical boards, the bottom of the vertical boards is telescopically connected to a support base along the vertical direction, and a bearing seat is provided on the support base , the bearing seat is connected with a vertically arranged screw, the screw is screwed with an adjustment plate, the adjustment plate is fixedly connected with the vertical plate, one end of the screw is connected with a drive motor through a shaft commutator, and the drive motor is provided with a forward rotation switch and The forward and reverse control circuit of the motor of the reversing switch is controlled.

With the above technical solution, when a group of tall people arrives, for example, a basketball team needs to go through the security check when arriving at the airport, press the forward rotation switch, and the forward rotation of the motor is controlled by the motor forward and reverse control circuit, and the rotation is performed by the shaft commutator. Reverse the direction of the shaft, and then drive the screw to rotate on the bearing seat, drive the adjustment plate threaded on the screw to move upward, and the adjustment plate drives the vertical plate fixedly connected to it to move upward, thereby increasing the height of the beam, and press reverse in the same way The switch is to lower the height of the crossbeam to realize the height adjustment of the security gate, which is applicable to a wider range of people.

Further, the shaft commutator includes a vertical bevel gear fixedly connected to the screw rod and a horizontal bevel gear fixedly connected to the driving hand wheel and meshing with the vertical bevel gear.

Further, a guide rod is provided on the side of the screw, and the guide rod passes through the adjusting plate.

Further, the driving motor is arranged in the bearing housing.

Further, the adjusting plate is fixedly connected to the vertical plate through two connecting columns, and the part where the lower end of the connecting column passes through the adjusting plate is a limiting section, and the length of the limiting section is greater than the height of the shaft commutator and the motor.

Further, the forward and reverse control circuit of the motor includes a single-chip microcomputer, the single-chip microcomputer is connected with the selection module having the forward rotation switch and the reverse rotation switch and the H-bridge drive module, and the H-bridge drive module is connected with the drive motor.

Description of drawings

Fig. 1 is a structural schematic diagram of a security inspection door;

Fig. 2 is a partial cross-sectional view of the security door to illustrate the internal structure of the vertical plate;

Fig. 3 is a schematic block diagram of the forward and reverse control circuit of the motor;

Fig. 4 is a circuit diagram of single-chip microcomputer and peripheral circuit, selection module;

Fig. 5 is a circuit diagram of a power module;

Figure 6 is a circuit diagram of the H-bridge drive module.

In the figure, 1. Vertical plate; 2. Beam; 3. Support seat; 4. Bearing seat; 41. Frame body; 42. Guide rod; 5. Screw rod; 6. Drive motor; 71. Vertical bevel gear; 72. Transverse bevel gear; 8, adjusting plate; 81, connecting column; 811, limit section; 91, single-chip microcomputer; 92, power supply module; 93, reset module; 94, clock module; 95, selection module.

detailed description

A kind of security gate, see Fig. 1 and Fig. 2, comprise two vertical vertical boards 1 and the beam 2 connected between the tops of the two vertical boards 1, the vertical board 1 and the cross beam 2 are equipped with metal detection etc. The devices with the security check function are the same as those of the prior art, and will not be described in detail here.

The bottom of the vertical plate 1 is telescopically connected with a support seat 3 in the vertical direction, and the upper part of the support seat 3 is provided with a bearing seat 4, and the bearing seat 4 is a rectangular frame 41, and the upper and lower frames of the frame body 41 are provided with two bearings. (not visible in the figure), a vertical screw 5 is connected between the two bearings, and the bottom end of the screw 5 is connected with a driving motor 6 through a shaft commutator, which includes a vertical shaft fixedly connected to the screw 5 The bevel gear 71 and the horizontal bevel gear 72 fixedly connected with the output shaft of the driving motor 6 and the vertical bevel gear 71 wheel mesh, when the driving motor 6 rotates, the horizontal bevel gear 72 drives the vertical bevel gear 71 to rotate and then drives the screw rod 5 turn.

An adjustment plate 8 is threadedly connected to the screw rod 5 , and the adjustment plate 8 is fixedly connected to the vertical plate 1 through two connecting columns 81 , and the connecting columns 81 penetrate the upper frame of the frame body 41 . The frame body 41 is provided with a guide rod 42 on the right side of the screw rod 5 , and the guide rod 42 passes through the adjusting plate 8 . During the rotation process of the screw rod 5, the adjusting plate 8 moves up and down along the screw rod 5 driven by the thread, and the guide rod 42 plays a guiding role, so that the transmission process is more stable.

The driving motor 6 is arranged on the lower frame of the frame body 41. The lower end of the connecting column 81 on the left side in FIG. and the height of the driving motor 6, thereby avoiding collision interference with the shaft commutator or the driving motor 6 during the up-and-down lifting process of the adjusting plate 8.

The driving motor 6 is controlled by a motor forward and reverse control circuit having a forward rotation switch and a reverse rotation switch. Referring to Figure 3, the forward and reverse control circuit of the motor includes a single-chip microcomputer 91. In addition to connecting the peripheral power supply module 92, reset module 93, and clock module 94, the single-chip microcomputer 91 is also connected with a forward rotation switch S1 and a reverse rotation switch S2 (see Figure 4) The selection module 95 and the H bridge drive module, the H bridge drive module is connected to the drive motor 6. The power supply module 92 is a voltage stabilizing circuit with a three-terminal voltage regulator as the core output power supply VCC, the reset module 93 triggers reset through the switch S3, and the clock module 94 mainly generates oscillation by the crystal oscillator Y1 to provide a clock signal for the single-chip microcomputer 91, select the module 95 is the forward rotation switch S1 and the reverse rotation switch S2 of the single-chip microcomputer 91 through the pull-down resistors R0 and R1, the other end of which is connected to the power supply VCC, and the commonly used H-bridge drive module for driving the forward and reverse rotation of the motor. The specific circuit is shown in Figure 4 to Figure 6, which has been shown in detail in the figure.

According to the trigger signals of different pins given by the forward switch S1 and the reverse switch S2, the microcontroller outputs the corresponding PWM1 and PWM2 control signals from P27 and P28 to control the H-bridge drive module to provide forward and reverse currents to the drive motor 6 path, thereby controlling the forward and reverse rotation of the drive motor 6.

When a tall group arrives, such as a basketball team arriving at the airport and needs to go through the security check, press the forward rotation switch S1, the forward and reverse control circuit of the motor will control the drive motor 6 to rotate forward, and the commutator will reverse the direction of the shaft. Then the screw rod 5 is driven to rotate on the bearing seat 4, and the adjusting plate 8 screwed on the screw rod 5 is driven to move upwards, and the adjusting plate 8 drives the vertical plate 1 fixedly connected with it to move upwards, thereby adjusting the height of the beam 2, similarly press Down reverse switch S2 promptly lowers the height of crossbeam 2, realizes the height adjustment of security door, and applicable crowd is wider.

The above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model all belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (6)

1. A security inspection door, comprising two vertical vertical plates and a crossbeam connected between the tops of the two vertical plates, characterized in that: the bottom of the vertical plate is telescopically connected with a support base in the vertical direction, and supports There is a bearing seat on the seat, and a vertically arranged screw is connected to the bearing seat for rotation. An adjusting plate is threaded on the screw, and the adjusting plate is fixedly connected with the vertical plate. One end of the screw is connected with a driving motor through a shaft commutator, and the driving motor It is controlled by the motor forward and reverse control circuit with forward rotation switch and reverse rotation switch. 2. The security inspection door according to claim 1, characterized in that: the shaft commutator includes a vertical bevel gear fixedly connected to the screw rod and a transverse bevel meshed with the vertical bevel gear fixedly connected to the driving hand wheel gear. 3. The security inspection door according to claim 1, characterized in that: a guide rod is provided on the side of the screw rod, and the guide rod passes through the adjusting plate. 4. The security inspection door according to claim 1, characterized in that: the driving motor is arranged in the bearing seat. 5. The security inspection door according to claim 4, characterized in that: the adjustment plate is fixedly connected to the vertical plate through two connecting columns, the part where the lower end of the connecting column passes through the adjustment plate is a limit section, and the length of the limit section is greater than the height of the shaft commutator and motor. 6. The security inspection door according to claim 1, characterized in that: the forward and reverse control circuit of the motor includes a single-chip microcomputer, and the single-chip microcomputer is connected with the selection module having the forward rotation switch and the reverse rotation switch and the H bridge drive module, and the H bridge drive module Connect the drive motor.