Electric bus door anti-pinch device

Abstract

The utility model relates to the technical field of anti-pinch devices, and discloses an electric bus door anti-pinch device which comprises door frames fixedly installed on the sides, close to each other, of two sets of door bodies. The strip-shaped plate is arranged in the door frame; the screw rod is arranged in the middle of the interior of the door frame, and the screw rod can drive the strip-shaped plate to move flexibly; the pressure sensors are distributed on one side of the door frame at equal intervals, and a single chip microcomputer and a controller are installed in the door body; according to the anti-pinch device for the electric bus door, each group of pressure sensors can be quickly and easily detached when needing to be replaced or maintained, so that the maintenance cost and time are greatly reduced, the pressure sensors do not need to be fixed by using too many screws, the time required for overall maintenance is further reduced, the maintenance efficiency of the bus door is improved, and in addition, the anti-pinch device is convenient to use. According to the scheme, the problem that the pressure sensor is inconvenient to disassemble and assemble possibly caused by a traditional bonding method is solved, and the use effect of the anti-pinch device is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-pinch devices, specifically an anti-pinch device for electric bus doors. Background Technology

[0002] With the rapid development of urban transportation, electric buses, as an environmentally friendly and low-carbon public transportation tool, have been widely used. During operation, electric buses see frequent passenger boarding and alighting, making the safety performance of the doors an important consideration.

[0003] Existing bus doors are equipped with anti-pinch devices based on pressure sensors. Multiple pressure sensors are used, but the pressure sensors in the anti-pinch device may be designed to be embedded inside the door or door frame, making the pressure sensors flush with the side wall of the door frame to reduce the impact on the appearance of the door and protect the sensors from damage by the external environment. However, this installation is generally fixed by adhesive. When the pressure sensors are flush with the side wall of the door frame, it is inconvenient to disassemble, replace, and maintain the pressure sensors later. When each set of pressure sensors is installed with screws, disassembling multiple sets of pressure sensors is time-consuming and laborious. Therefore, we proposed an anti-pinch device for electric bus doors to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-pinch device for electric bus doors, which solves the problem of inconvenient disassembly, replacement, and maintenance in the later stages due to the traditional installation method of pressure sensors.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an anti-pinch device for electric bus doors, comprising a door frame fixedly installed on one side of two sets of door bodies that are close to each other;

[0006] Strip panels are installed within the door frame;

[0007] A screw is located in the middle of the door frame, and the screw can drive the strip plate to move flexibly.

[0008] Multiple pressure sensors are provided and are equidistantly distributed on one side of the door frame. A microcontroller and a controller are installed inside the door.

[0009] A connector is installed between the strip plate and the pressure sensor, which facilitates quick assembly and disassembly of the pressure sensor.

[0010] Preferably, the two ends of the screw are rotatably connected to the door body and the door frame respectively through bearings, the strip plate is threaded to the surface of the screw through a threaded hole, and a hexagonal groove is provided on the side of the screw away from the door body.

[0011] Preferably, multiple sets of limiting rods are fixed between the door frame and the door body, and the strip plate slides on the surface of the limiting rods through the through holes.

[0012] Preferably, a mounting cavity adapted to the pressure sensor is provided on one side of the door frame. The pressure sensor can be embedded in the mounting cavity of the door frame, and one side of the pressure sensor is flush with the side wall of the door frame. A circular hole for the pressure sensor to be inserted is provided on the door frame at the mounting cavity location.

[0013] Preferably, the connector includes a housing fixed on the surface of the strip plate near the pressure sensor and an abutment plate disposed inside the housing, wherein a spring is fixedly installed between the abutment plate and the strip plate;

[0014] The pressure sensor has a locking block fixed to its surface, and the housing has a hook-shaped groove on its surface that matches the locking block. The insertion end of the pressure sensor matches the inner cavity of the housing.

[0015] Preferably, a telescopic rod is fixed between the contact plate and the strip plate, and the spring is wound around the surface of the telescopic rod.

[0016] Preferably, the surface of the casing is provided with a threading hole.

[0017] Beneficial effects

[0018] This utility model provides an anti-pinch device for the doors of electric buses. Compared with the prior art, it has the following advantages:

[0019] Beneficial effects:

[0020] This electric bus door anti-pinch device allows for quick and easy removal of each pressure sensor when replacement or maintenance is needed, significantly reducing maintenance costs and time. Since it eliminates the need for excessive screws to secure the pressure sensors, this design also reduces overall maintenance time and improves bus door maintenance efficiency. Furthermore, this solution avoids the inconvenience of pressure sensor removal and installation that can result from traditional adhesive bonding methods, enhancing the effectiveness of the anti-pinch device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 3 This is a cross-sectional view of the casing of this utility model;

[0024] Figure 4 This is a schematic diagram of the extended structure of the pressure sensor of this utility model.

[0025] In the diagram: 101, door body; 102, door frame; 103, pressure sensor; 104, strip plate; 105, limit rod; 106, screw; 107, hexagonal groove; 108, mounting cavity; 2, connector; 201, housing; 202, hook groove; 203, locking block; 204, telescopic rod; 205, spring; 206, contact plate; 207, wire hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1-4 As shown:

[0028] The electric bus door anti-pinch device includes a door frame 102 fixedly installed on one side of two sets of door bodies 101 that are close to each other;

[0029] Strip plate 104 is installed inside door frame 102;

[0030] A screw 106 is located in the middle of the door frame 102. The screw 106 can drive the strip plate 104 to move flexibly. The two ends of the screw 106 are rotatably connected to the door body 101 and the door frame 102 respectively through bearings. The strip plate 104 is threaded to the surface of the screw 106 through a threaded hole. A hexagonal groove 107 is provided on the side of the screw 106 away from the door body 101. Multiple sets of limiting rods 105 are fixed between the door frame 102 and the door body 101. The strip plate 104 slides on the surface of the limiting rods 105 through a through hole.

[0031] Multiple pressure sensors 103 are provided and are equidistantly distributed on one side of the door frame 102. A microcontroller and controller are installed inside the door body 101. A mounting cavity 108 adapted to the pressure sensor 103 is opened on one side of the door frame 102. The pressure sensor 103 can be embedded in the mounting cavity 108 of the door frame 102, and one side of the pressure sensor 103 is flush with the side wall of the door frame 102. A circular hole for the pressure sensor 103 to be inserted is opened at the mounting cavity 108 of the door frame 102.

[0032] Connector 2 is installed between strip plate 104 and pressure sensor 103. Connector 2 facilitates quick assembly and disassembly of pressure sensor 103. Connector 2 includes a housing 201 fixed on the surface of strip plate 104 near pressure sensor 103 and a contact plate 206 disposed inside housing 201. A spring 205 is fixedly installed between contact plate 206 and strip plate 104.

[0033] The pressure sensor 103 has a locking block 203 fixed on its surface, and the housing 201 has a hook-shaped groove 202 that matches the locking block 203 on its surface. The insertion end of the pressure sensor 103 matches the inner cavity of the housing 201.

[0034] A telescopic rod 204 is fixed between the contact plate 206 and the strip plate 104. A spring 205 is wound around the surface of the telescopic rod 204. A wire hole 207 is opened on the surface of the housing 201. The contact plate 206 is in close contact with the pressure sensor 103.

[0035] In this implementation plan: When the electric bus door anti-pinch device is in use, the pressure sensor 103 is installed on the door frame 102 where the two sets of door bodies 101 are close to each other. When the door body 101 is closed, the pressure sensor 103 can contact the object being pinched immediately. The microcontroller connected to the pressure sensor 103 can detect the pressure change information of the pressure sensor 103 in a timely manner and transmit this information to the controller. The controller then commands the door body 101 to open quickly, thereby realizing a highly sensitive anti-pinch function.

[0036] With prolonged use, the pressure sensor 103 may need to be disassembled, replaced, or maintained. To facilitate this process, an internal hexagonal handle (not shown in the figure) can be inserted into the hexagonal slot 107 at one end of the screw 106. The hexagonal slot 107 makes it easy to rotate the screw 106. The strip plate 104 is connected to the screw 106 by threads. By rotating the screw 106, the strip plate 104 can be driven to move. The strip plate 104 then drives the pressure sensor 103 to move together through the connector 2. In this way, the pressure sensor 103 can be removed from the embedded mounting cavity 108, releasing the flush state with one side of the door frame 102, thus facilitating the disassembly and assembly of the pressure sensor 103.

[0037] like Figure 2 As shown: While the strip plate 104 is moving, it can slide on the limiting rod 105. The limiting rod 105 can effectively limit the movement of the strip plate 104, ensuring the stability of the movement of the strip plate 104.

[0038] like Figure 4As shown: After the pressure sensor 103 is removed from the door frame 102, the operator can press the pressure sensor 103 and squeeze the contact plate 206 and the telescopic rod 204 to drive the locking block 203 to move to the designated position of the hook groove 202. Then, the pressure sensor 103 is turned at a certain angle so that the locking block 203 is in the open position of the hook groove 202. In this way, the disassembly process can be easily completed by pulling the pressure sensor 103.

[0039] During installation, the plug end of the pressure sensor 103 is inserted into the inner cavity of the housing 201, while ensuring that the locking block 203 corresponds to and is plugged into the open position of the hook groove 202. During the insertion of the pressure sensor 103, the spring 205 is compressed, and then the pressure sensor 103 is screwed on so that the locking block 203 is located at the position of the limiting hook end. Under the rebound action of the spring 205, the locking block 203 will be locked in the limiting hook end of the hook groove 202, thereby completing the locking of the pressure sensor 103.

[0040] Next, by reversing the screw 106, the strip plate 104 can be driven to move, so that the strip plate 104 drives the pressure sensor 103 to be partially located inside the door frame 102 through the connector 2, and partially embedded in the mounting cavity 108, thereby completing the installation of the pressure sensor 103.

[0041] This solution allows each pressure sensor 103 to be quickly and easily removed when it needs to be replaced or maintained, which greatly reduces maintenance costs and time. Since it does not require the use of too many screws to fix the pressure sensor 103, this design also reduces the overall maintenance time and improves the maintenance efficiency of the bus door. In addition, this solution avoids the problem of inconvenient disassembly and assembly of the pressure sensor 103 that may be caused by traditional bonding methods, and improves the effectiveness of the anti-pinch device.

[0042] The housing 201 is provided with a wire hole 207, which facilitates the passage of the connection wire of the pressure sensor 103 and allows for wiring operations, further improving the convenience of installation and maintenance.

[0043] It should be noted that the power connection methods of each electrical device are existing mature technologies and are well known to those skilled in the art. They will not be elaborated upon here. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0044] The working principle and usage process of this utility model: With prolonged use, the pressure sensor 103 of this electric bus door anti-pinch device may require disassembly, replacement, or maintenance. To facilitate this process, an internal hexagonal handle can be inserted into the hexagonal groove 107 at one end of the screw 106. The strip plate 104 is threadedly connected to the screw 106. By rotating the screw 106, the strip plate 104 can be moved. The strip plate 104 then moves the pressure sensor 103 along with the connecting piece 2. This allows the pressure sensor 103 to be removed from the embedded mounting cavity 108, releasing it from its flush position with the door frame 102, thus facilitating the disassembly and assembly of the pressure sensor 103. After the pressure sensor 103 is completely removed from the door frame 102, the operator can press the pressure sensor 103 and squeeze the contact plate 206 and the telescopic rod 204, thereby driving the locking block 203 to move to the designated position in the hook groove 202. Subsequently, the pressure sensor 103 can be screwed down... The force sensor 103 is angled so that the locking block 203 is positioned at the open end of the hook groove 202. This allows for easy disassembly by pulling the pressure sensor 103. During installation, the insertion end of the pressure sensor 103 is inserted into the inner cavity of the housing 201, ensuring that the locking block 203 aligns with and engages with the open end of the hook groove 202. While inserting the pressure sensor 103, the spring 205 is compressed. Then, the pressure sensor 103 is screwed down to engage the locking block. Position 203 is located at the end of the limiting hook. Under the rebound action of the spring 205, the locking block 203 will be locked in the end of the limiting hook of the hook groove 202, thereby locking the pressure sensor 103. Next, by turning the screw 106 in the opposite direction, the strip plate 104 can be driven to move, so that the strip plate 104 drives the pressure sensor 103 to be partially located in the door frame 102 through the connector 2, and partially embedded in the mounting cavity 108, thereby completing the installation of the pressure sensor 103.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An anti-trap device for electric bus door, characterized in that: Includes door frames (102) that are fixedly installed on the side of the two sets of door bodies (101) that are close to each other; A strip plate (104) is provided inside the door frame (102); A screw (106) is located in the middle of the door frame (102), and the screw (106) can drive the strip plate (104) to move flexibly; Pressure sensors (103) are provided in multiple sets and are equidistantly distributed on one side of the door frame (102). A microcontroller and a controller are installed inside the door body (101). A connector (2) is installed between the strip plate (104) and the pressure sensor (103), which facilitates quick assembly and disassembly of the pressure sensor (103).

2. The electric bus door anti-pinch device of claim 1, wherein: The two ends of the screw (106) are rotatably connected to the door body (101) and the door frame (102) respectively through bearings. The strip plate (104) is threadedly connected to the surface of the screw (106) through the threaded hole. A hexagonal groove (107) is provided on the side of the screw (106) away from the door body (101).

3. The electric bus door anti-trap device of claim 1, wherein: Multiple sets of limiting rods (105) are fixed between the door frame (102) and the door body (101), and the strip plate (104) slides on the surface of the limiting rods (105) through the through holes.

4. The electric bus door anti-trap device of claim 1, wherein: The door frame (102) has an installation cavity (108) adapted to the pressure sensor (103) on one side. The pressure sensor (103) can be embedded in the installation cavity (108) of the door frame (102), and one side of the pressure sensor (103) is flush with the side wall of the door frame (102). The door frame (102) has a circular hole for the pressure sensor (103) to be inserted at the installation cavity (108).

5. The electric bus door anti-trap device of claim 1, wherein: The connector (2) includes a housing (201) fixed on the surface of the strip plate (104) near the pressure sensor (103) and an abutment plate (206) disposed inside the housing (201). A spring (205) is fixedly installed between the abutment plate (206) and the strip plate (104). The pressure sensor (103) has a locking block (203) fixed on its surface, and the housing (201) has a hook-shaped groove (202) adapted to the locking block (203) on its surface. The insertion end of the pressure sensor (103) is adapted to the inner cavity of the housing (201).

6. The electric bus door anti-trap device of claim 5, wherein: A telescopic rod (204) is fixed between the contact plate (206) and the strip plate (104), and a spring (205) is wound around the surface of the telescopic rod (204).

7. The electric bus door anti-trap device of claim 5, wherein: The surface of the casing (201) is provided with a wire hole (207).

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