Electric door pump device

Abstract

The present invention discloses an electric door pump device, comprising a base, a driving mechanism, a clutch mechanism, a gear transmission mechanism, and an output mechanism, wherein the clutch mechanism switches on or off the power transmission of the driving mechanism and the gear transmission mechanism. The base of the clutch mechanism is connected to the base, one end of the elastic member of the clutch mechanism is rotatably connected to the base, and the other end is sequentially connected to a clutch handle, a clutch connecting arm, and a clutch plate. When the clutch mechanism is in a closed state, the connection between the clutch handle and the base, the connection between the clutch handle and the clutch connecting arm, and the connection between the clutch connecting arm and the clutch plate are in a straight line, wherein the connection between the clutch handle and the base is located between the connection between the clutch handle and the clutch connecting arm and the connection between the clutch connecting arm and the clutch plate. The present invention solves the problems of unstable transmission caused by the clutch mechanism and poor installation adaptability of the clutch mechanism during use of the electric door pump device, thereby achieving the effect of stable transmission and enhancing the adaptability of the clutch mechanism.

Description

Technical Field

[0001] The invention relates to the field of electric door pumps, and in particular to an electric door pump device. Background Art

[0002] The electric door pump device is a device that must be equipped on large and medium-sized buses. Its function is to separate the motor shaft gear of the electric door pump from the transmission gear in an emergency, making it easy to open the door and escape. The existing electric door pump clutch mechanism includes a base plate, a clutch plate, a return spring, a clutch handle and a clutch connecting arm. The movement of the clutch gear is controlled by controlling the movement of the clutch plate. However, the clutch gear wears out after long-term use, and the structural instability of the clutch mechanism can cause the door to shake, and the subsequent replacement and maintenance costs are also high. Summary of the invention

[0003] In order to solve the problem of door opening and closing vibration caused by clutch gear wear and unstable clutch mechanism structure in the electric door pump device in the prior art, the present invention proposes an electric door pump device including a stable clutch mechanism.

[0004] Technical Solution

[0005] An electric door pump device includes a base, and also includes a driving mechanism, a clutch mechanism, a gear transmission mechanism, and an output mechanism, wherein the clutch mechanism is used to connect or disconnect the power transmission between the driving mechanism and the gear transmission mechanism; one end of the elastic member of the clutch mechanism is rotatably connected to the base, and the other end has a clutch handle, a clutch connecting arm, and a clutch plate that are rotatably connected in sequence, wherein the bottom of the clutch plate is rotatably connected to the base through a rotating shaft, the clutch plate is connected to the clutch gear through a shaft, and the shaft passes through a hole set on the base, the clutch handle is "L" shaped, and the connection between the elastic member and the clutch handle, and the clutch connecting arm and the clutch handle The clutch handle is rotatably connected to the base at the inflection point of the "L" shape; when the clutch mechanism is in a closed state, the connection between the clutch handle and the base, the connection between the clutch handle and the clutch connecting arm, and the connection between the clutch connecting arm and the clutch plate are located on a straight line, wherein the connection between the clutch handle and the base is located between the connection between the clutch handle and the clutch connecting arm and the connection between the clutch connecting arm and the clutch plate; a positioning column is provided on the base, located beside the connection between the clutch handle and the clutch connecting arm and away from the clutch plate; the output shaft of the drive mechanism performs input transmission to the gear transmission mechanism through the clutch gear.

[0006] A further improvement of the present invention is that a limiting hole A is arranged on the upper part of the clutch plate, and a limiting hole B is arranged on the lower part; a limiting column A is arranged on the base corresponding to the limiting hole A, and a limiting column B is arranged on the base corresponding to the limiting hole B.

[0007] A further improvement of the present invention is that the clutch connecting arm is in an "Ω" shape, and the concave opening of the "Ω" faces and matches the connection between the clutch handle and the base.

[0008] A further improvement of the present invention is that the gear transmission mechanism is a multi-stage gear transmission, including a clutch gear, a bridge gear, and a double gear large gear that are meshed in sequence, and then meshed with the output gear through the double gear small gear.

[0009] A further improvement of the present invention is that the base is a rectangular parallelepiped structure, and an assembly hole is processed on the surface of the base.

[0010] A further improvement of the present invention is that when the clutch mechanism is in a closed state, the clutch mechanism is located within the range of the base.

[0011] A further improvement of the present invention is that the straight line formed by the connection between the clutch handle and the base, the connection between the clutch handle and the clutch connecting arm, and the connection between the clutch connecting arm and the clutch plate is perpendicular to the straight line formed by the connection between the rotating shaft and the clutch connecting arm and the clutch plate.

[0012] Beneficial Effects

[0013] When the clutch mechanism of the present invention is in a non-clutched state, the connection between the clutch handle and the base, the connection between the clutch handle and the clutch connecting arm, and the connection between the clutch connecting arm and the clutch plate are located on a straight line, wherein the connection between the clutch handle and the base is located on a straight line.

[0014] In the middle of the straight line, if the clutch mechanism is to produce displacement, the force component on the clutch connecting arm will be offset, making the clutch mechanism more stable;

[0015] By setting a limit hole on the clutch plate and setting a limit column at a corresponding position in the limit hole, the clutch plate can be ensured to move accurately.

[0016] The middle part of the clutch connecting arm is designed to be in an "Ω" shape, and the "Ω" concave opening matches the connection between the clutch handle and the base, which can make the structure more compact;

[0017] The gear transmission mechanism is a multi-stage gear transmission, which is convenient for controlling the transmission ratio, reducing the speed and increasing the torque;

[0018] The base is arranged in the shape of a cuboid, wherein when the clutch mechanism is in a closed state, the clutch mechanism is located within the range of the base, so that the device has better adaptability, saves space, and enhances the installation adaptability of the electric door pump device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a structural schematic diagram of an electric door pump device.

[0020] Figure 2 The figure is a schematic diagram of a transmission mechanism of an electric door pump device.

[0021] Figure 3 The present invention is a schematic diagram of the closed state of the clutch mechanism of an electric door pump device.

[0022] Figure 4 The present invention is a schematic diagram of the disengaged state of the clutch mechanism of an electric door pump device.

[0023] Figure 5 This is a stability analysis diagram of the clutch mechanism of an electric door pump device. DETAILED DESCRIPTION

[0024] Implementation example Figure 1 , Figure 2 , Figure 3 and Figure 4 An electric door pump device shown includes a base 1, a driving mechanism 2, a clutch mechanism 3, a gear transmission mechanism 4, and an output mechanism 5, wherein the clutch mechanism 3 is installed on the base 1, and the clutch mechanism 3 connects or disconnects the power transmission between the driving mechanism 2 and the gear transmission mechanism 4; the driving mechanism 2 can be driven by an electric motor, and power is input to the gear transmission mechanism 4 by driving the clutch gear 41.

[0025] Clutch mechanism 3 Figure 3 and Figure 4 As shown, one end of the elastic member 31 is fixed on the base 1, and the other end is fixed with a rotatably connected clutch handle 32, a clutch connecting arm 33, and a clutch plate 34 in sequence. The bottom of the clutch plate 34 is rotatably connected to the base 1 through a rotating shaft 311. The clutch plate 34 is connected to the clutch gear 41 through a shaft 310. The shaft 310 passes through a hole 11 set on the base 1. The size of the hole 11 can ensure the movement stroke of the shaft 310; the clutch connecting arm 33 is arranged above the clutch handle 32 and the clutch plate 34; the clutch handle 32 is "L"-shaped, wherein the connection between the elastic member 31 and the clutch handle 32 and the connection between the clutch connecting arm 33 and the clutch handle 32 are respectively located on two different rods of the "L"-shaped clutch handle 32, and the "L"-shaped inflection point of the clutch handle 32 is rotatably connected to the base 1;

[0026] The connection between the clutch handle 32 and the base 1, the connection between the clutch handle 32 and the clutch connecting arm 33, and the connection between the clutch connecting arm 33 and the clutch plate 34 are located on a straight line, wherein the connection between the clutch handle 32 and the base 1 is located between the connection between the clutch handle 32 and the clutch connecting arm 33 and the connection between the clutch connecting arm 33 and the clutch plate 34.

[0027] A positioning column 39 is provided on the base 1, next to the connection between the clutch handle 32 and the clutch connecting arm 33, and on a side away from the clutch plate 34. When different elastic members 31 are replaced, the positioning column 39 ensures that the connection between the clutch handle 32 and the base 1, the connection between the clutch handle 32 and the clutch connecting arm 33, and the connection between the clutch connecting arm 33 and the clutch plate 34 are still located in a straight line, and limits the clutch handle 32 and the clutch connecting arm 33 to rotate and displace only to one side.

[0028] The clutch plate 34 is provided with a limiting hole A35 on the upper part and a limiting hole B36 on the lower part. The base 1 is provided with a limiting column A37 corresponding to the limiting hole A35 and a limiting column B38 corresponding to the limiting hole B36.

[0029] The middle part of the clutch connecting arm 33 is in an "Ω" concave shape corresponding to the connection between the clutch handle 32 and the base 1, and the opening of the "Ω" concave shape faces and matches the connection between the clutch handle 32 and the base 1, which can make the structure more compact.

[0030] When the clutch mechanism 3 is in a closed state, the clutch mechanism composed of the elastic member 31 , the clutch handle 32 , the clutch connecting arm 33 , and the clutch plate 34 is located within the range of the base 1 , thereby ensuring the adaptability of the entire clutch mechanism.

[0031] Gear transmission mechanism 4 Figure 2 As shown, it includes a clutch gear 41, a bridge gear 42, and a double gear large gear 43 that are meshed in sequence, and then meshes with an output gear 45 through a double gear small gear 44, and the output gear 45 drives the output mechanism 5 to move.

[0032] When working, the clutch mechanism 3 is in a closed state, and the driving mechanism 2 transmits power to the gear transmission mechanism 4 through the clutch gear 41. The clutch gear 41, the bridge gear 42, and the double-gear large gear 43 in the gear transmission mechanism 4 are meshed in sequence, and then meshed with the output gear 45 through the double-gear small gear 44. The output gear 45 is connected to the output mechanism 5 to transmit the power.

[0033] When the clutch mechanism 3 needs to be separated, Figure 4 As shown, when the clutch handle 32 is turned, the elastic member 31 is deformed, and the clutch handle 32 rotates along the connection with the base 1. The clutch connecting arm 33 moves toward the clutch plate 34 under the push of the clutch handle 32. The clutch plate 34 drives the clutch gear 41 to be clutched along the rotating shaft 311 under the push of the clutch connecting arm 33, wherein the limit hole 6 on the clutch plate 34 is displaced under the limited stroke of the limit column 8, and the limit hole 7 is displaced under the limited stroke of the limit column 9.

[0034] When the clutch gear 41 is worn, unstable transmission occurs. At this time, the clutch gear 41 may cause the clutch plate 34 to move. We establish a simple mechanical model, such as Figure 5 As shown in FIG. 1 , due to the displacement of the clutch gear 41, the clutch plate 34 is assumed to be subjected to an external force F generated along the displacement direction of the clutch gear 41. The resultant force F acts on the connection between the clutch plate 34 and the clutch connecting arm 33. At this time, we can decompose the force F into F along the direction of the clutch connecting arm 33. Y and the perpendicular F X Since the connection between the clutch handle 32 and the base 1, the connection between the clutch handle 32 and the clutch connecting arm 33, and the connection between the clutch connecting arm 33 and the clutch plate 34 are located in a straight line, the force F Y cancel; only F remains X , F X The decomposition is continued into f X With f y , where f X The center of the rotating shaft 311 is the center of the circle, and the distance between the rotating shaft 311 and the connection between the clutch connecting arm 33 and the clutch plate 34 is the radius, f y With f X It is perpendicular to and passes through the center of the circle. Therefore, after decomposition, the force actually acting on the clutch plate 34 and causing it to rotate is only f X , f X The elastic member 31 is not deformed, so when the clutch device is in a closed state, the stability of the entire clutch mechanism is enhanced, and the service life of the elastic member 31 is also increased.

[0035] Embodiment 2 is based on Embodiment 1, and the straight line formed by the connection between the clutch handle 32 and the base 1, the connection between the clutch handle 32 and the clutch connecting arm 33, and the connection between the clutch connecting arm 33 and the clutch plate 34 is perpendicular to the straight line formed by the connection between the rotating shaft 311, the clutch connecting arm 33 and the clutch plate 34, that is, Figure 5 When the angle α in is 90 degrees, when the clutch mechanism is in a closed state with unchanged position relationship and subjected to external force, F X With F Y All are offset, and the entire clutch mechanism is the most stable.

Claims

1. An electric door pump device, comprising a base (1), a driving mechanism (2), a clutch mechanism (3), a gear transmission mechanism (4), and an output mechanism (5), wherein the clutch mechanism (3) is used to connect or disconnect power transmission between the driving mechanism (2) and the gear transmission mechanism (4); The elastic member (31) of the clutch mechanism (3) has one end rotatably connected to the base (1), and the other end has a clutch handle (32), a clutch connecting arm (33), and a clutch plate (34) which are rotatably connected in sequence, wherein the bottom of the clutch plate (34) is rotatably connected to the base (1) via a rotating shaft (311), and the clutch plate (34) is connected to the clutch gear (41) via a shaft (310), and the shaft (310) passes through a hole (11) provided on the base (1), characterized in that: The clutch handle (32) is in an "L" shape, and the connection points between the elastic member (31) and the clutch handle (32) and between the clutch connecting arm (33) and the clutch handle (32) are respectively located on both sides of the "L" shape, and the clutch handle (32) is rotatably connected to the base (1) at the inflection point of the "L" shape; When the clutch mechanism (3) is in a closed state, the connection between the clutch handle (32) and the base (1), the connection between the clutch handle (32) and the clutch connecting arm (33), and the connection between the clutch connecting arm (33) and the clutch plate (34) are located on a straight line, wherein the connection between the clutch handle (32) and the base (1) is located between the connection between the clutch handle (32) and the clutch connecting arm (33) and the connection between the clutch connecting arm (33) and the clutch plate (34); A positioning column (39) is provided on the base (1) at a side near the connection between the clutch handle (32) and the clutch connecting arm (33) and away from the clutch plate (34); The driving mechanism (2) performs input transmission on the gear transmission mechanism (4) by driving the clutch gear (41); The clutch connecting arm (33) is in an "Ω" shape, and the concave opening of the "Ω" shape faces and matches the connection between the clutch handle (32) and the base (1). The base (1) is a rectangular parallelepiped structure, and a mounting hole is processed on the surface of the base (1).

2. An electric door pump device according to claim 1, characterized in that: The clutch plate (34) is provided with a limiting hole A (35) at the top and a limiting hole B (36) at the bottom. On the base (1), a limiting column A (37) is provided corresponding to the limiting hole A (35), and a limiting column B (38) is provided corresponding to the limiting hole B (36).

3. An electric door pump device according to claim 1, characterized in that: The gear transmission mechanism (4) is a multi-stage gear transmission, comprising a clutch gear (41), a bridge gear (42), and a double-gear large gear (43) that mesh in sequence, and then mesh with an output gear (45) via a double-gear small gear (44).

4. An electric door pump device according to claim 1, characterized in that: When the clutch mechanism (3) is in a closed state, the clutch mechanism (3) is located within the range of the base (1).

5. An electric door pump device according to claim 1, characterized in that: A straight line formed by a connection between the clutch handle (32) and the base (1), a connection between the clutch handle (32) and the clutch connecting arm (33), and a connection between the clutch connecting arm (33) and the clutch plate (34) is perpendicular to a straight line formed by a connection between the rotating shaft (311) and the clutch connecting arm (33) and the clutch plate (34).

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