A stable electric door pump clutch mechanism

Abstract

The present invention discloses a stable electric door pump clutch mechanism, comprising a base, one end of an elastic member connected to the base, and the other end connected in sequence with a clutch handle, a clutch connecting arm, and a clutch plate. 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 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; 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 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 clutch mechanism, and achieves the effect of stable transmission and enhances the adaptability of the clutch mechanism.

Description

Technical Field

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

[0002] The electric door pump clutch mechanism is a device that must be equipped for 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, so as to facilitate opening the door to escape; the existing electric door pump clutch mechanism includes a base plate, a clutch plate, a reset spring, a clutch handle and a connecting arm, and the movement of the clutch gear is controlled by controlling the movement of the clutch plate, but the clutch gear will wear out after long-term use. After the gear is worn or used for a long time, the movement of the clutch gear will drive the clutch plate to move along the limit hole, resulting in unstable transmission, and then causing jitter when the door is opened and closed; the size of the existing clutch mechanism will exceed the range of the base, resulting in poor installation adaptability. Summary of the invention

[0003] Aiming at the problems in the prior art that the clutch mechanism of an electric door pump is unstable during movement or after long-term use and the installation adaptability of the clutch mechanism is poor, the present invention proposes a stable electric door pump clutch driving mechanism.

[0004] Technical Solution

[0005] A stable electric door pump clutch mechanism includes a base, one end of an elastic member is rotatably connected to the base, and the other end has a

[0006] The clutch handle, clutch connecting arm and clutch plate are connected to each other in a rotational manner, wherein the bottom of the clutch plate is connected to the base through a rotating shaft, the clutch plate is connected to a clutch gear through a shaft, and the shaft passes through a hole set on the base, and the clutch handle is in an "L" shape, wherein the connection between the elastic member and the clutch handle, and the connection between the clutch connecting arm and the clutch handle are respectively located on two different rods of the "L" shape of the clutch handle, and the inflection point of the "L" shape of the clutch handle is rotationally connected to the base; in the 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 at the connection between the clutch handle and the clutch connecting arm and the connection between the clutch connecting arm and the clutch plate

[0007] Between the joints of plywood;

[0008] A positioning column is arranged on the base, beside the connection between the clutch handle and the clutch connecting arm, and on one side away from the clutch plate.

[0009] A further improvement of the present invention is that the clutch connecting arm is arranged above the clutch handle and the clutch plate.

[0010] A further improvement of the present invention is that in the closed state, the clutch structure composed of the elastic member, the clutch handle, the clutch connecting arm and the clutch plate is located within the range of the base.

[0011] 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.

[0012] A further improvement of the present invention is that the middle portion of the clutch connecting arm is in an "Ω" concave shape corresponding to the connection between the clutch handle and the base, and the opening of the "Ω" concave shape faces and matches the connection between the clutch handle and the base.

[0013] 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.

[0014] Beneficial Effects

[0015] When the clutch mechanism of the present invention 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 arranged on a straight line, wherein the connection between the clutch handle and the base is located in the middle of the straight line. If the clutch mechanism is to be displaced, the component force on the clutch connecting arm is offset, making the clutch mechanism more stable.

[0016] In the closed state, the clutch structure composed of the elastic member, the clutch handle, the clutch connecting arm and the clutch plate is located within the range of the base, so that the adaptability of the mechanism is better;

[0017] The middle part of the clutch connecting arm is arranged in an "Ω" shape, which is beneficial to the installation of the clutch mechanism and the compactness of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the closed state of a stable clutch drive mechanism.

[0019] Figure 2 It is a schematic diagram of the separation state of a stable clutch mechanism.

[0020] Figure 3 This is a stability analysis diagram of a stable clutch mechanism. DETAILED DESCRIPTION

[0021] Specific implementation examples Figure 1 , Figure 2 and Figure 3 As shown, the clutch mechanism is in the closed state. Figure 1 As shown: one end of the elastic member 2 is fixed

[0022] The clutch plate 5 is fixed on the base 1, and the other end is fixed with a rotatably connected clutch handle 3, a clutch connecting arm 4, and a clutch plate 5 in sequence. The bottom of the clutch plate 5 is rotatably connected to the base 1 through a rotating shaft 12. The clutch plate 5 is connected to a clutch gear 11 through an axis 14. The axis 14 passes through a hole 13 set on the base 1. The size of the hole 13 can ensure the movement stroke of the axis 14. The clutch connecting arm 4 is set above the clutch handle 3 and the clutch plate 5. The clutch handle 3 is "L" shaped, wherein the connection between the elastic member 2 and the clutch handle 3 and the connection between the clutch connecting arm 4 and the clutch handle 3 are respectively located at the clutch handle 3. On two different "L"-shaped rods, the "L"-shaped inflection point of the clutch handle 3 is rotatably connected to the base 1; the connection between the clutch handle 3 and the base 1, the connection between the clutch handle 3 and the clutch connecting arm 4, and the connection between the clutch connecting arm 4 and the clutch plate 5 are located on a straight line, wherein the connection between the clutch handle 3 and the base 1 is located between the connection between the clutch handle 3 and the clutch connecting arm 4 and the connection between the clutch connecting arm 4 and the clutch plate 5.

[0023] A positioning column 10 is provided on the base 1, next to the connection between the clutch handle 3 and the clutch connecting arm 4, and away from the clutch plate 5. When different elastic members 2 are replaced, the positioning column 10 ensures that the connection between the clutch handle 3 and the base 1, the connection between the clutch handle 3 and the clutch connecting arm 4, and the connection between the clutch connecting arm 4 and the clutch plate 5 are still located in a straight line, and limits the clutch handle 3 and the clutch connecting arm 4 to only rotate and displace to one side.

[0024] In the closed state, the clutch structure composed of the elastic member 2, the clutch handle 3, the clutch connecting arm 4 and the clutch plate 5 is located within the range of the base 1, thereby ensuring the adaptability of the entire clutch mechanism.

[0025] The clutch plate 5 is provided with a limit hole A6 on the upper part and a limit hole B7 on the lower part.

[0026] A limiting column A8 is arranged in A6, and a limiting column B9 is arranged in the corresponding limiting hole B7.

[0027] The middle part of the clutch connecting arm 4 is in an "Ω" concave shape corresponding to the connection between the clutch handle 3 and the base 1, and the opening of the "Ω" concave shape faces and matches the connection between the clutch handle 3 and the base 1, which can make the structure more compact.

[0028] After toggling, Figure 2 As shown, the clutch mechanism is in a disengaged state, the clutch handle 3 is turned, the elastic member 2 is deformed, the clutch handle 3 rotates along the connection with the base 1, and the clutch connecting arm 4 moves toward the clutch plate 5 under the push of the clutch handle 3. The clutch plate 5 drives the clutch gear 11 to engage and disengage along the rotating shaft 12 under the push of the clutch connecting arm 4, wherein the limit hole A6 on the clutch plate 5 is displaced under the limited stroke of the limit column A8, and the limit hole B7 is displaced under the limited stroke of the limit column B9.

[0029] When the clutch gear 11 is worn, unstable transmission occurs. At this time, the clutch gear 11 may cause the clutch plate 5 to move. We establish a simple mechanical model, such as Figure 3 As shown in FIG. 1 , due to the displacement of the clutch gear 11, the clutch plate 5 is assumed to be subjected to an external force F generated along the displacement direction of the clutch gear 11. At this time, we can decompose the force F into F parallel to the clutch connecting arm 4. Y and the perpendicular F X , since the connection between the clutch handle 3 and the base 1, the connection between the clutch handle 3 and the clutch connecting arm 4, and the connection between the clutch connecting arm 4 and the clutch plate 5 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 rotation shaft 12 is the center of the circle, and the distance between the rotation shaft 12 and the connection between the clutch connecting arm 4 and the clutch plate 5 is the radius. 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 5 and causing it to rotate is only f X , f X It is not enough to cause the elastic member 2 to deform, so when the clutch device is in a closed state, the stability of the entire clutch mechanism is enhanced.

[0030] Embodiment 2 is based on Embodiment 1, and the straight line formed by the connection between the clutch handle 3 and the base 1, the connection between the clutch handle 3 and the clutch connecting arm 4, and the connection between the clutch connecting arm 4 and the clutch plate 5 is perpendicular to the straight line formed by the connection between the rotating shaft 12 and the clutch connecting arm 4 and the clutch plate 5, that is, Figure 3 The angle α in the figure is 90 degrees. At this time, 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. A stable electric door pump clutch mechanism, comprising a base (1), an elastic member (2) having one end rotatably connected to the base (1), and the other end having a clutch handle (3), a clutch connecting arm (4), and a clutch plate (5) rotatably connected in sequence, wherein the bottom of the clutch plate (5) is rotatably connected to the base (1) via a rotating shaft (12), the clutch plate (5) is connected to a clutch gear (11) via a shaft (14), and the shaft (14) passes through a hole (13) provided on the base (1), characterized in that: The clutch handle (3) is in an "L" shape, wherein the connection point between the elastic member (2) and the clutch handle (3) and the connection point between the clutch connecting arm (4) and the clutch handle (3) are respectively located on two different rods of the "L" shape of the clutch handle (3), and the inflection point of the "L" shape of the clutch handle (3) is rotatably connected to the base (1); In the closed state, the connection between the clutch handle (3) and the base (1), the connection between the clutch handle (3) and the clutch connecting arm (4), and the connection between the clutch connecting arm (4) and the clutch plate (5) are located on a straight line, wherein the connection between the clutch handle (3) and the base (1) is located between the connection between the clutch handle (3) and the clutch connecting arm (4), and the connection between the clutch connecting arm (4) and the clutch plate (5); A positioning column (10) is provided on the base (1), located near the connection between the clutch handle (3) and the clutch connecting arm (4) and on a side away from the clutch plate (5); The clutch connecting arm (4) is arranged above the clutch handle (3) and the clutch plate (5). In the closed state, the clutch structure composed of the elastic member (2), the clutch handle (3), the clutch connecting arm (4), and the clutch plate (5) is located within the range of the base (1). The middle part of the clutch connecting arm (4) is in an "Ω" concave shape corresponding to the connection between the clutch handle (3) and the base (1), and the opening of the "Ω" concave shape faces and matches the connection between the clutch handle (3) and the base (1).

2. A stable electric door pump clutch mechanism according to claim 1, characterized in that: The clutch plate (5) is provided with a limiting hole A (6) at the top and a limiting hole B (7) at the bottom. The base (1) is provided with a limiting column A (8) corresponding to the limiting hole A (6) and a limiting column B (9) corresponding to the limiting hole B (7).

3. A stable electric door pump clutch mechanism according to claim 1, characterized in that: A straight line formed by the connection between the clutch handle (3) and the base (1), the connection between the clutch handle (3) and the clutch connecting arm (4), and the connection between the clutch connecting arm (4) and the clutch plate (5) is perpendicular to a straight line formed by the connection between the rotating shaft (12) and the clutch connecting arm (4) and the clutch plate (5).

Images