Swing arm type push rod mechanism

Abstract

The utility model relates to a swing arm type push rod mechanism which comprises a frame body, a mounting plate is arranged on the frame body in a sliding mode, and a driving air cylinder is arranged at one end of the mounting plate. Hinge seats are symmetrically arranged at the middle part and the other end of the mounting plate; hinge plates are respectively arranged on the hinge seats, and prismatic rotating shafts are arranged at the upper ends of the two corresponding hinge plates; a pull rod is arranged between the lower ends of every two adjacent hinge plates. A push rod bearing seat capable of being matched with the prismatic rotating shaft is arranged below the swing arm push rod in parallel, and the swing arm push rod is installed on the frame body in a swing mode through matching of the push rod bearing seat and the prismatic rotating shaft. The propelling action of the air cylinder is converted into the propelling action of the swing arm push rod through the hinge mechanism; the structure is stable and the occupied space is small; by means of the ball screw assembly, the push rod has a large working range, and adaptability is high; the structure is simple, and the cost is relatively low; disassembly and assembly are convenient, and flexibility is high; the action is stable and the safety is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of propulsion mechanisms and relates to a swing-arm type push rod mechanism. Background Art

[0002] With the development of the logistics industry, the use of propulsion mechanisms has been widely used in the pharmaceutical industry. The stability, flexibility, and safety of propulsion mechanisms can greatly improve production efficiency. Currently, the most common propulsion mechanisms are rack propulsion mechanisms and cylinder propulsion mechanisms. However, these propulsion mechanisms take up a lot of equipment space when in use. Due to the very limited space layout of pharmaceutical production lines, this places high demands on the internal structure of the equipment, which can both realize the function of the equipment and save space within the limited space. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the utility model provides a swing arm type push rod mechanism with a smaller volume.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] A swing arm push rod mechanism, comprising:

[0006] A frame body, a mounting plate is slidably provided on the upper surface of the frame body, a driving cylinder is provided at one end of the mounting plate; hinge seats are symmetrically provided at the middle and the other end of the mounting plate;

[0007] The hinge seats are hinged with hinge plates respectively by means of square head rotating shafts, the piston rod of the driving cylinder is hinged with a transmission plate, and one end of the transmission plate is connected to the square head rotating shaft;

[0008] The upper ends of the two corresponding hinge plates are provided with a prismatic rotating shaft; the lower ends of the two adjacent hinge plates are provided with a pull rod;

[0009] A swing arm push rod, wherein a push rod bearing seat capable of cooperating with the prismatic rotating shaft is arranged parallel to the lower side of the swing arm push rod, and the swing arm push rod is swingably mounted on the frame body by cooperating with the push rod bearing seat and the prismatic rotating shaft;

[0010] A ball screw assembly, wherein the ball screw of the ball screw assembly is connected to the frame body by using a screw bearing seat; and the ball nut of the ball screw assembly is connected to the mounting plate by using a connecting piece.

[0011] Preferably, guide rails are respectively provided on both sides of the upper surface of the frame, and sliders capable of cooperating with the guide rails are respectively provided on both sides of the lower surface of the mounting plate.

[0012] Preferably, the driving cylinder is connected to the mounting plate by means of a cylinder mounting seat; the driving cylinder and the cylinder mounting seat are hinged.

[0013] Preferably, both ends of the pull rod are connected to the hinge plates via hinge shafts respectively.

[0014] Preferably, one end of the transmission plate is provided with a square hole capable of cooperating with the square head rotating shaft.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The utility model converts the propulsion action of the cylinder into the propulsion action of the swing arm push rod through a hinge mechanism; the structure is stable and occupies a small space; the use of the ball screw assembly makes the push rod have a large working range and strong adaptability; the structure is simple and the cost is relatively low; the disassembly and assembly are convenient and the flexibility is high; the action is stable and the safety is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model.

[0018] Figure 2 It is a left side schematic diagram of the present utility model.

[0019] Figure 3 This is a schematic diagram of the transmission plate structure of the present utility model.

[0020] In the figure: 1. frame; 2. mounting plate; 3. driving cylinder; 4. hinge seat; 5. hinge plate; 6. prismatic shaft; 7. pull rod; 8. swing arm push rod; 9. push rod bearing seat; 10. ball screw; 11. screw bearing seat; 12. ball nut; 13. connecting piece; 14. guide rail; 15. slider; 16. cylinder mounting seat; 18. hinge shaft; 19. transmission plate; 20. square head shaft; 21. square hole; 22. square connecting rod. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0022] This embodiment provides a swing arm push rod mechanism, comprising a frame 1, a swing arm push rod 8 and a ball screw assembly. The swing arm push rod 8 can achieve a propulsion action on the frame 1; the ball screw assembly enables the swing arm push rod 8 to have a larger working range.

[0023] like Figure 1-Figure 3 As shown, a mounting plate 2 is slidably provided on the upper surface of the frame 1, and a driving cylinder 3 is provided at one end of the mounting plate 2;

[0024] Hinge seats 4 are symmetrically provided at the middle and other ends of the mounting plate 2; hinge plates 5 are hingedly connected to the hinge seats 4 by means of square-headed rotating shafts 20, and a transmission plate 19 is hingedly connected to the piston rod of the driving cylinder 3, one end of which is connected to the square-headed rotating shaft 20; when the piston rod of the driving cylinder 3 is extended, the upper end of the hinge plate 5 is driven to swing outward;

[0025] The upper ends of the two corresponding hinge plates 5 are provided with a prismatic rotating shaft 6, which enables the two corresponding hinge plates 5 to move synchronously; a pull rod 7 is provided between the lower ends of the two adjacent hinge plates 5; the pull rod 7 enables the two adjacent hinge plates 5 to move synchronously;

[0026] A push rod bearing seat 9 capable of cooperating with the prismatic rotating shaft 6 is provided parallel to the lower side of the swing arm push rod 8. The swing arm push rod 8 is swingably mounted on the frame 1 by the cooperation of the push rod bearing seat 9 and the prismatic rotating shaft 6. When the hinge plate 5 moves, the swing arm push rod 8 extends forward and downward or retracts backward and upward.

[0027] The ball screw 10 of the ball screw assembly is connected to the frame 1 using a screw bearing seat 11; the ball nut 12 of the ball screw assembly is connected to the mounting plate 2 using a connecting piece 13. When the ball screw 10 rotates, the ball nut 12 can drive the mounting plate 2 to move forward and backward.

[0028] Furthermore, guide rails 14 are respectively provided on both sides of the upper surface of the frame body 1 , and sliders 15 capable of cooperating with the guide rails 14 are respectively provided on both sides of the lower surface of the mounting plate 2 .

[0029] Furthermore, the driving cylinder 3 is connected to the mounting plate 2 by means of a cylinder mounting seat 16 ; the driving cylinder 3 and the cylinder mounting seat 16 are hinged, and the hinged mounting mode of the driving cylinder 3 can avoid motion interference.

[0030] Furthermore, both ends of the pull rod 7 are connected to the hinge plate 5 via hinge shafts 18 .

[0031] Furthermore, a square hole 21 capable of cooperating with the square shaft 20 is provided at one end of the transmission plate 19. The transmission plate 19 is connected to the square shaft 20 via the square hole 21. When the transmission plate 19 moves, the square shaft 20 is driven to rotate.

[0032] Furthermore, both ends of the prismatic rotating shaft 6 are respectively provided with square connecting rods 22 capable of cooperating with the hinge plate 5 .

[0033] Working principle: When the present invention is in use, the piston rod of the driving cylinder 3 is extended, the transmission plate 19 is actuated, and the hinge plate 5 is driven to swing through the square-head rotating shaft 20. The two adjacent hinge plates 5 move synchronously due to the presence of the pull rod 7; the two corresponding hinge plates 5 also move synchronously due to the presence of the prismatic rotating shaft 6; therefore, when the piston rod of the driving cylinder 3 is extended, the hinge plates 5 move synchronously, driving the swing arm push rod 8 to move forward and downward; conversely, the swing arm push rod 8 is retracted backward and upward; the ball screw assembly enables the mounting plate 2 to move back and forth on the frame 1, so that the swing arm push rod 8 has a larger working range.

[0034] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A swing arm push rod mechanism, characterized in that: include: A frame (1), wherein a mounting plate (2) is slidably provided on the upper surface of the frame (1), a driving cylinder (3) is provided at one end of the mounting plate (2); hinge seats (4) are symmetrically provided at the middle and the other end of the mounting plate (2); Hinge plates (5) are hingedly connected to the hinge base (4) by means of square-headed rotating shafts (20), a transmission plate (19) is hingedly connected to the piston rod of the driving cylinder (3), and one end of the transmission plate (19) is connected to the square-headed rotating shaft (20); a prismatic rotating shaft (6) is provided at the upper ends of two corresponding hinge plates (5); and a pull rod (7) is provided between the lower ends of two adjacent hinge plates (5); A swing arm push rod (8), wherein a push rod bearing seat (9) capable of cooperating with the prismatic rotating shaft (6) is provided parallel to the lower side of the swing arm push rod (8), and the swing arm push rod (8) is mounted on the frame (1) by swinging by cooperating with the push rod bearing seat (9) and the prismatic rotating shaft (6); A ball screw assembly, wherein the ball screw (10) of the ball screw assembly is connected to the frame (1) by means of a screw bearing seat (11); and the ball nut (12) of the ball screw assembly is connected to the mounting plate (2) by means of a connecting piece (13).

2. A swing arm push rod mechanism according to claim 1, characterized in that: Guide rails (14) are respectively provided on both sides of the upper surface of the frame (1), and sliders (15) capable of cooperating with the guide rails (14) are respectively provided on both sides of the lower surface of the mounting plate (2).

3. The swing arm push rod mechanism according to claim 1, wherein: The driving cylinder (3) is connected to the mounting plate (2) via a cylinder mounting seat (16); the driving cylinder (3) and the cylinder mounting seat (16) are hinged.

4. The swing arm push rod mechanism according to claim 1, wherein: Both ends of the pull rod (7) are connected to the hinge plate (5) via hinge shafts (18).

5. The swing arm push rod mechanism according to claim 1, wherein: One end of the transmission plate (19) is provided with a square hole (21) capable of cooperating with the square head rotating shaft (20).

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