Novel outward swinging door pump for passenger car

Abstract

The utility model relates to the technical field of door pumps, in particular to a novel outward swinging door pump for a passenger car, which comprises a pump body connected with a car body, a cavity is formed in the pump body, a rotating structure is arranged in the cavity, a connecting shaft is arranged on the outer side of the pump body, and the connecting shaft is rotatably connected with the pump body and fixedly connected with the rotating structure. The rotating structure can drive the connecting shaft to rotate around the pump body along the axis of the connecting shaft. According to the rotating structure in the scheme, the operation of driving the connecting shaft to rotate can be completed in the space of the pump body, the needed installation space is small, and the effect of improving the installation convenience is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of door pumps, in particular to a novel outer swing door pump for a passenger car. BACKGROUND

[0002] At present, the outer swing door pump is a power device applied to a vehicle (especially a large vehicle such as a passenger car and a bus). The main function of the outer swing door pump is to provide power for opening and closing the outer swing door. The door pump is usually driven by air pressure or hydraulic pressure, and the energy of compressed gas or liquid is converted into mechanical force to push the door to swing outward to open or swing inward to close.

[0003] The outer swing door pump commonly used in the existing market is a φ100mm stroke 100mm push-pull air cylinder driving an external screw shaft to drive the screw sleeve to convert reciprocating motion and rotary motion, and drive the door to rotate to open and close the door.

[0004] The prior art in the above has the following defects: in order to achieve the opening degree of the door after being opened, the screw rod and the screw sleeve need to be relatively large in size, and a large installation space is required, and the installation is not convenient. CONTENT OF THE INVENTION

[0005] The application provides a novel outer swing door pump for a passenger car to improve the installation convenience.

[0006] The above technical purpose of the application is achieved by the following technical scheme:

[0007] The novel outer swing door pump for a passenger car comprises a pump body connected with a vehicle body, a cavity is formed in the pump body, a rotating structure is arranged in the cavity, a connecting shaft is arranged on the outer side of the pump body, the connecting shaft is rotationally connected with the pump body and fixedly connected with the rotating structure, and the rotating structure can drive the connecting shaft to rotate around the pump body along the axis of the connecting shaft; and the connecting shaft is used for connecting a door.

[0008] By adopting the above scheme, the rotating structure in the cavity can drive the connecting shaft to rotate, because the connecting shaft is connected with the door, the rotating of the connecting shaft can drive the door to rotate, and compared with the prior art in which the push-pull air cylinder drives the external screw shaft to drive the screw sleeve to rotate and then drive the door to rotate, the rotating structure in the present application can complete the operation of driving the connecting shaft to rotate in the space of the pump body, the installation space required is smaller, and the installation convenience is improved.

[0009] Further, the rotating structure comprises a piston and a threaded rod, the piston is arranged in the cavity and can slide up and down along the length direction of the cavity, the corresponding two sides of the length direction of the cavity are provided with air inlets for communicating with the air inlet device, when air is introduced into one air inlet, the piston can be driven to move towards the other air inlet; the surface of the piston is provided with a threaded hole, the threaded rod is arranged along the length direction of the cavity and is threadedly connected with the threaded hole, the bottom of the threaded rod is rotationally connected with the bottom wall of the cavity, and the top of the threaded rod is fixedly connected with the connecting shaft, when the piston moves along the length direction of the cavity, the threaded rod is driven to rotate around the cavity.

[0010] By adopting the above scheme, one air inlet of the piston is communicated with the air inlet device, the air inlet device inputs air into the cavity, and the air can drive the piston to move along the length direction of the cavity; since the cavity is threadedly connected with the threaded rod, when the piston moves, the threaded rod can be driven to rotate, and the rotation of the threaded rod can drive the connecting shaft to open or close the door.

[0011] Further, the inside of the cavity is provided with a guide rod, the guide rod is parallel to the threaded rod, the surface of the piston is provided with a through hole, the guide rod is inserted into the through hole, and the two ends of the guide rod are fixedly connected with the top wall and the bottom wall of the cavity respectively; when the piston moves along the length direction of the cavity, the guide rod is used for limiting the movement direction of the piston.

[0012] By adopting the above scheme, the guide rod is used for limiting the movement direction of the piston.

[0013] Further, the top wall of the cavity is provided with an elastic member and a base, the periphery of the base is abutted with the inner wall of the cavity, the elastic member is arranged between the bottom wall of the cavity and the base, and in the deformation process of the elastic member, the base can be driven to slide along the length direction of the cavity.

[0014] By adopting the above scheme, when the piston moves towards the base, after the piston abuts against the base, in the process that the gas continues to drive the piston to move towards the top wall of the cavity, the elastic member is compressed, in the compression process of the elastic member, part of kinetic energy of the gas brought to the base is absorbed, so as to slow down the speed of the base moving towards the bottom wall of the cavity, which can slow down the rotation speed of the threaded rod and the rotation speed of the connecting shaft driving the door to rotate.

[0015] Further, the elastic member is provided with a positioning rod, one end of the positioning rod is fixedly connected with the top wall of the cavity, and the base is provided with a through hole corresponding to the positioning rod.

[0016] By adopting the above scheme, when the gas pushes the piston to move towards the base, the base is pushed by the piston to move towards the top wall of the cavity, and the elastic member is also compressed at this time. During the movement of the base towards the top wall of the cavity, the positioning rod gradually penetrates through the through hole, and when the positioning rod abuts against the piston, the piston moves to the maximum position, that is, the threaded rod stops rotating.

[0017] Further, the top wall of the pump body is provided with a connecting frame for fixing the pump body and the vehicle body together, the connecting frame is in an L shape as a whole, the horizontal end plate of the connecting frame is fixedly connected with the top wall of the pump body, and the vertical end plate of the connecting frame is used for being fixedly connected with the vehicle body.

[0018] By adopting the above scheme, the connecting frame can be connected with the pump body and the vehicle body together.

[0019] Further, the top wall of the connecting frame is provided with an output hole for the connecting shaft to penetrate through the top wall of the pump body, and the surface of the output hole is provided with a heightening cylinder fixedly connected with the upper surface of the connecting frame.

[0020] By adopting the above scheme, the heightening cylinder can limit the connecting shaft.

[0021] Further, a reinforcing plate is arranged between the horizontal end and the vertical end of the connecting frame, and the reinforcing plate is fixedly connected with the horizontal end plate and the vertical end plate.

[0022] By adopting the above scheme, the reinforcing plate makes the connection between the horizontal end and the vertical end of the connecting frame more stable.

[0023] In summary, the present application has the following technical effects:

[0024] 1. By arranging the door pump, the rotation of the rotating structure in the cavity can drive the connecting shaft to rotate, because the connecting shaft is connected with the vehicle door, the rotation of the connecting shaft can drive the vehicle door to rotate. Compared with the prior art, the push-pull air cylinder drives the external screw shaft to drive the screw sleeve to rotate, and then drives the vehicle door to rotate. The rotating structure in the present application can complete the operation of driving the connecting shaft to rotate in the space of the pump body, and the installation space required is small, thereby improving the installation convenience.

[0025] 2. By arranging the rotating structure, one air inlet of the piston is connected with the air inlet device, the air inlet device inputs gas into the cavity, and the gas can push the piston to move along the length direction of the cavity. Because the cavity is threadedly connected with the threaded rod, the movement of the piston can drive the threaded rod to rotate, and the rotation of the threaded rod can drive the vehicle door to open or close through the connecting shaft.

[0026] 3. By setting the elastic member and the base, when the piston moves towards the base, after the piston abuts against the base, in the process that the gas continues to push the piston to move towards the top wall of the cavity, the elastic member will be compressed, and the elastic member will absorb part of the kinetic energy of the gas to the base in the process of compression, thereby slowing down the speed of the base moving towards the bottom wall of the cavity, which can slow down the speed of the threaded rod rotating, and can slow down the speed of the connecting shaft driving the door rotating. BRIEF DESCRIPTION OF DRAWINGS

[0027] Fig. 1 is a structural schematic diagram of a novel outer swing door pump for a bus of the application;

[0028] Fig. 2 is a structural schematic diagram of the inside of the application after being opened.

[0029] In the figure, 1 is a pump body; 2 is a rotating structure; 21 is a piston; 22 is a threaded rod; 3 is a connecting shaft; 4 is a guide rod; 5 is a speed reduction assembly; 51 is an elastic member; 52 is a base; 53 is a positioning rod; 6 is a connecting frame; 61 is a reinforcing plate; 62 is a heightening cylinder. DETAILED DESCRIPTION

[0030] The application will be further described in detail below with reference to the accompanying drawings.

[0031] Referring to Figs. 1-2 , the embodiment provides a novel outer swing door pump for a bus, which comprises a pump body 1, a rotating structure 2 and a connecting shaft 3, the pump body 1 is used for being fixedly connected with a vehicle body, the connecting shaft 3 is used for being fixedly connected with a door, a cavity is formed in the door pump, one end of the connecting shaft 3 is inserted into the cavity, specifically, part of the connecting shaft 3 is located in the cavity, and part of the connecting shaft 3 is located outside the cavity, the rotating structure 2 is arranged in the cavity and connected with the connecting shaft 3, the rotating structure 2 can drive the connecting shaft 3 to rotate, and further drive the door to open and close relative to the vehicle body.

[0032] Referring to Figs. 1-2 , the rotating structure 2 comprises a piston 21 and a threaded rod 22, the piston 21 is placed in the cavity, the periphery of the piston 21 abuts against the inner wall of the cavity, and the piston 21 can slide up and down along the length direction of the cavity; the top wall and the bottom wall of the cavity are both provided with an air inlet for being communicated with an air inlet device, when air is introduced into one air inlet, the piston 21 can be driven to move towards the other air inlet; a threaded hole is formed in the surface of the piston 21, the threaded rod 22 is placed along the length direction of the cavity and is threadedly connected with the threaded hole, the bottom of the threaded rod 22 is rotationally connected with the bottom wall of the cavity, and the top of the threaded rod 22 is fixedly connected with the connecting shaft 3; when the piston 21 moves along the length direction of the cavity, the threaded rod 22 is driven to rotate around the cavity, and the threaded rod 22 drives the door to rotate through the connecting shaft 3; in the embodiment, the air inlet device can be selected from a compressor, an air pump and the like.

[0033] With reference to Figs. 1-2 The top wall of the pump body 1 is provided with a connecting frame 6 for fixing the pump body 1 and the vehicle body together, the connecting frame 6 is in the shape of L as a whole, the horizontal end plate of the connecting frame 6 is fixedly connected with the top wall of the pump body 1, the vertical end plate of the connecting frame 6 is used for fixedly connecting with the vehicle body, and a reinforcing plate 61 is arranged between the horizontal end plate and the vertical end plate of the connecting frame 6, the reinforcing plate 61 is fixedly connected with the horizontal end plate and the vertical end plate, and the arrangement of the reinforcing plate 61 makes the connection between the horizontal end plate and the vertical end plate of the connecting frame 6 more stable; the top wall of the connecting frame 6 is provided with an output hole for the connecting shaft 3 to pass through the top wall of the pump body 1, and the surface of the output hole is provided with a raised cylinder 62 corresponding to the output hole, the raised cylinder 62 is fixedly connected with the upper surface of the connecting frame 6; specifically, the inside of the raised cylinder 62 is provided with a rotating piece, the rotating piece makes the raised cylinder 62 and the connecting shaft 3 in rotational connection, and can limit the connecting shaft 3, in the embodiment, the rotating piece is preferably a bearing, the bearing acts between the inner wall of the raised cylinder 62 and the outer wall of the connecting shaft 3, so that the raised cylinder 62 can provide a stable support for the connecting shaft 3.

[0034] With reference to Figs. 1-2 The inside of the cavity is provided with a guide rod 4 parallel to the threaded rod 22, the surface of the piston 21 is provided with a through hole, the guide rod 4 is inserted into the through hole, and the two ends of the guide rod 4 are fixedly connected with the top wall and the bottom wall of the cavity, respectively, when the piston 21 moves along the length direction of the cavity, the guide rod 4 is used for limiting the movement direction of the piston 21.

[0035] With reference to Figs. 1-2The top wall of the cavity is provided with a deceleration assembly 5, the deceleration assembly 5 comprises elastic members 51, a base 52 and positioning rods 53, the periphery of the base 52 is in abutment with the inner wall of the cavity, the base 52 can slide up and down along the length direction of the cavity, the elastic members 51 are arranged between the base 52 and the top wall of the cavity, and two ends of the elastic members 51 are fixedly connected with the base 52 and the top wall of the cavity respectively; in the embodiment, three elastic members 51 are arranged; when the gas inlet of the bottom wall of the cavity is filled with gas, the piston 21 can be driven to move towards the top wall of the cavity, at this time, the threaded rod 22 rotates around its own axis inside the cavity, the threaded rod 22 drives the door to open through the connecting shaft 3, and because the deceleration assembly 5 is arranged, when the piston 21 moves towards the base 52, after the piston 21 abuts against the base 52, in the process that the gas continues to drive the piston 21 to move towards the top wall of the cavity, the elastic members 51 will be compressed, and the elastic members 51 will absorb part of the kinetic energy of the gas to the base 52 in the compression process, thereby slowing down the speed of the base 52 moving towards the bottom wall of the cavity, so that the speed of the threaded rod 22 rotating can be slowed down, the speed of the connecting shaft 3 driving the door to rotate can be slowed down, the speed of opening the door is avoided to be too fast, and a person waiting for the bus near the door is avoided to be hurt; one positioning rod 53 is correspondingly arranged in each elastic member 51, one end of the positioning rod 53 is fixedly connected with the top wall of the cavity; the base 52 is provided with a through hole corresponding to the positioning rod 53, because the positioning rod 53 is arranged, when the gas drives the piston 21 to move towards the base 52, the base 52 is driven by the piston 21 to move towards the top wall of the cavity, at this time, the elastic members 51 are also compressed, in the process that the base 52 moves towards the top wall of the cavity, the positioning rod 53 will gradually pass through the through hole, and when the piston 21 abuts against the positioning rod 53, the piston 21 moves to the maximum position, that is, the threaded rod 22 stops rotating, that is, the connecting shaft 3 stops rotating, and at this time, the door is opened to the maximum extent.

[0036] The specific implementation principle of the novel outer swing door pump for a bus in the embodiment of the application is as follows: when it is needed to open the door, gas is introduced into the gas inlet at the bottom wall of the cavity, and the gas inlet at the top wall of the cavity is an exhaust hole; after the gas enters the cavity, the piston 21 is driven to move towards the top wall of the cavity, at this time, the threaded rod 22 rotates along its own axis, and the threaded rod 22 drives the door to open through the connecting shaft 3; when it is needed to close the door, gas is introduced into the gas inlet at the top wall of the cavity, at this time, the gas inlet at the bottom wall of the cavity is an exhaust hole, and at this time, the gas drives the piston 21 to move towards the bottom wall of the cavity, and the threaded rod 22 rotates along its own axis in the reverse direction, and the threaded rod 22 drives the door to close through the connecting shaft 3.

[0037] The specific embodiment is only an explanation of the application, and is not a limitation of the application, and those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, as long as the modifications are within the scope of the claims of the application and are protected by the Patent Law.

Claims

1. A novel swing door pump for a passenger vehicle, characterized by: The utility model provides a pump body (1) connected with the car body, the inside of pump body (1) is provided with cavity, and the inside of cavity is provided with rotating structure (2), the outside of pump body (1) is provided with connecting shaft (3), connecting shaft (3) is rotatably connected with pump body (1) and is fixedly connected with rotating structure (2), and rotating structure (2) can drive connecting shaft (3) to rotate around pump body (1) along the axis of itself, and connecting shaft (3) is used for connecting the door.

2. A novel swing door pump for passenger cars as claimed in claim 1, wherein: The rotating structure (2) includes a piston (21) and a threaded rod (22). The piston (21) is placed in the cavity and can slide up and down along the length direction of the cavity. Both sides of the length direction of the cavity are provided with air inlets for communicating with air inlet devices. When gas is introduced into one air inlet, the piston (21) can be driven to move towards the other air inlet. A threaded hole is formed on the surface of the piston (21). The threaded rod (22) is placed along the length direction of the cavity and is threadedly connected with the threaded hole. The bottom of the threaded rod (22) is rotatably connected with the bottom wall of the cavity. The top of the threaded rod (22) is fixedly connected with the connecting shaft (3). When the piston (21) moves along the length direction of the cavity, the threaded rod (22) is driven to rotate around the cavity.

3. A novel swing door pump for passenger cars as claimed in claim 2, wherein: A guide rod (4) is arranged in the cavity and is parallel to the threaded rod (22). A through hole is formed on the surface of the piston (21). The guide rod (4) is inserted into the through hole. Both ends of the guide rod (4) are fixedly connected with the top wall and the bottom wall of the cavity. When the piston (21) moves along the length direction of the cavity, the guide rod (4) is used to limit the movement direction of the piston (21).

4. A novel swing door pump for passenger cars as claimed in claim 2, wherein: An elastic member (51) and a base (52) are arranged on the top wall of the cavity. The periphery of the base (52) abuts against the inner wall of the cavity. The elastic member (51) is arranged between the bottom wall of the cavity and the base (52). In the process of deformation, the elastic member (51) can drive the base (52) to slide along the length direction of the cavity.

5. A novel swing door pump for passenger cars as claimed in claim 4, wherein: A positioning rod (53) is arranged in the elastic member (51). One end of the positioning rod (53) is fixedly connected with the top wall of the cavity. The base (52) is provided with a through hole corresponding to the positioning rod (53).

6. A novel swing door pump for passenger cars as claimed in claim 1, wherein: A connecting frame (6) is arranged on the top wall of the pump body (1). The connecting frame (6) is used to fix the pump body (1) and the vehicle body together. The connecting frame (6) is in an L shape. The horizontal end plate of the connecting frame (6) is fixedly connected with the top wall of the pump body (1). The vertical end plate of the connecting frame (6) is used to be fixedly connected with the vehicle body.

7. A novel swing door pump for passenger cars as claimed in claim 6, wherein: An output hole is formed on the top wall of the connecting frame (6). The output hole is used to make the connecting shaft (3) pass through the top wall of the pump body (1) and protrude out. An elevated cylinder (62) is arranged on the surface of the output hole. The elevated cylinder (62) is fixedly connected with the upper surface of the connecting frame (6).

8. A novel swing door pump for passenger cars as claimed in claim 7, wherein: A reinforcing plate (61) is arranged between the horizontal end plate and the vertical end plate of the connecting frame (6). The reinforcing plate (61) is fixedly connected with the horizontal end plate and the vertical end plate.

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