Piston and piston rod connecting structure capable of preventing piston rod from being broken

Abstract

The utility model discloses a piston and piston rod connecting structure capable of preventing a piston rod from being broken, which comprises an outer cylinder, the piston rod and a piston block, and is characterized in that a support plate is fixed inside the outer end of the outer cylinder, the outer cylinder is fixed at two ends of the support plate through a connecting rod, and a vertical plate is fixedly connected to the upper side of the support plate. The vertical plate is connected with a piston rod limiting assembly; the piston rod limiting assembly comprises a sliding groove, the sliding groove is formed in the middle of one side of the supporting plate, one end of a T-shaped sliding block is arranged in the sliding groove, and racks are fixedly arranged at the two ends of a transverse rod of the T-shaped sliding block respectively. The utility model relates to the technical field of pistons, in particular to a piston and piston rod connecting structure capable of preventing a piston rod from being broken, which achieves symmetrical supporting and limiting of the piston rod through the arrangement of a supporting plate, a connecting rod, a vertical plate and a piston rod limiting assembly, effectively disperses stress borne by the piston rod and improves the service life of the piston rod. And the stability and the fracture resistance are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pistons, in particular to a piston and piston rod connection structure which can prevent the piston rod from breaking. Background Art

[0002] The piston-rod connection is a key component in hydraulic and pneumatic systems, and its performance directly impacts the overall system's operational stability and lifespan. Conventional piston-rod connections are prone to breaking when operated for extended periods or subjected to high pressure. This not only impacts the normal operation of the equipment but can also cause safety incidents. In existing technologies, piston rod breakage is typically caused by uneven stress distribution or excessive impact forces. Therefore, developing a connection structure that can effectively prevent piston rod breakage is of great practical significance. Therefore, a piston-rod connection structure designed to prevent piston rod breakage was designed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a piston and piston rod connection structure that prevents the piston rod from breaking. Through the arrangement of the support plate, connecting rod, vertical plate and piston rod limiting assembly, symmetrical support and limiting of the piston rod are achieved, effectively dispersing the stress borne by the piston rod, and improving its stability and anti-fracture ability.

[0004] The utility model adopts the following technical solutions to achieve the purpose of the invention:

[0005] A piston-rod connection structure for preventing a piston rod from breaking comprises an outer cylinder, a piston rod, and a piston block, and is characterized in that:

[0006] A support plate is fixed inside the outer end of the outer cylinder, and the two ends of the support plate are fixed to the outer cylinder through connecting rods. The upper side of the support plate is fixedly connected to the vertical plate, and the vertical plate is connected to the piston rod limiting assembly;

[0007] The cam is provided with a T-shaped slider at one end and a rack is fixed on the two ends of the cross bar of the T-shaped slider. Each rack is respectively meshed with a gear, and the central axis of each gear is rotatably connected to the vertical plate. The end of the central axis of each gear is respectively fixedly connected to one end of the connecting rod one, and the other end of each connecting rod one is respectively rotatably connected to one end of the top block support plate, and the other end of each top block support plate is respectively rotatably connected to one end of the connecting rod two, and the other end of each connecting rod two is respectively rotatably connected to one end of the connecting rod three and the connecting rod four, and the other end of each connecting rod three is respectively rotatably connected to the connecting rod one, and the other end of each connecting rod four is respectively rotatably connected to the vertical plate;

[0008] The other end portion of each top block support plate is fixedly connected to the top block.

[0009] As a further limitation of the present technical solution, the surface of the top block is a smooth surface.

[0010] As a further limitation of the present technical solution, the lower side of the T-shaped slider is fixedly connected to a moving block, the other end of the moving block is threadedly engaged with a screw rod, the lower end of the screw rod is fixed to a motor, and the motor fixes the support plate.

[0011] As a further limitation of the present technical solution, symmetrical guide columns are fixed to the lower side of the piston block, and the symmetrical guide columns pass through the middle of both sides of the support plate.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] The arrangement of the support plate, connecting rod, vertical plate and piston rod limiter assembly achieves symmetrical support and limit for the piston rod, effectively dispersing the stress on the piston rod and improving its stability and fracture resistance.

[0014] The smooth surface design of the top block reduces the friction of the piston rod during movement and extends its service life;

[0015] The guide column ensures the smooth movement of the piston block in the outer cylinder and prevents uneven force on the piston rod caused by poor guidance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of this application and constitute a part of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation on this application. Obviously, the drawings described below are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the drawings:

[0017] Figure 1 The local three-dimensional Figure 1 ;

[0018] Figure 2 For the utility model Figure 1 A partial enlarged view of point A in the middle;

[0019] Figure 3 The local three-dimensional Figure 2 ;

[0020] Figure 4 For the utility model Figure 3 A partial enlarged view of point B in the middle;

[0021] Figure 5 It is a partial front view of the utility model;

[0022] Figure 6 The local three-dimensional Figure 3 ;

[0023] Figure 7 For the utility model Figure 6 A partial enlargement of point C in the middle;

[0024] Figure 8 It is a three-dimensional diagram of the present utility model.

[0025] In the figure: 1. Piston block, 2. Guide column, 3. Top block, 4. Vertical plate, 5. Support plate, 6. Connecting rod 1, 7. Gear, 71. Rack, 8. Connecting rod, 9. Support plate, 10. Motor, 11. Screw, 12. Moving block, 13. T-shaped slider, 14. Slide groove, 15. Connecting rod 2, 16. Connecting rod 3, 18. Connecting rod 4, 19. Outer cylinder, 20. Piston rod, 21. Piston cylinder. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] It should be noted that the directional terms such as left, right, up, down, front and back in the embodiments of the present invention are merely relative concepts or are based on the normal use state of the product, that is, the direction of movement of the product, and should not be considered as limiting.

[0028] When a component is referred to as being “located on” or “disposed on” another component, it can be on the other component or there may be an intervening component. When a component is referred to as being “connected to” another component, it can be directly connected to the other component or there may be an intervening component.

[0029] A piston and piston rod connection structure for preventing piston rod breakage, comprising an outer cylinder 19, a piston rod 20 and a piston block 1, wherein the piston block 1 is disposed within a piston cylinder 21, the piston block 1 matches the piston cylinder 21, and the piston cylinder 21 fixes the outer cylinder 19 (not shown in the figure). A support plate 9 is fixed to the inner portion of the outer end of the outer cylinder 19, and the two ends of the support plate 9 are fixed to the outer cylinder 19 by connecting rods 8. The upper side of the support plate 9 is fixedly connected to a vertical plate 4, and the vertical plate 4 is connected to a piston rod limit assembly;

[0030] In this embodiment, a linear motion component (linear electric push rod or hydraulic cylinder) is provided in the outer cylinder 19 to drive the movement of the piston rod 20;

[0031] The piston rod limiting assembly includes a slide groove 14, which is opened in the middle of one side of the support plate 9, and one end of a T-shaped slider 13 is provided in the slide groove 14, and racks 71 are fixed at both ends of the cross bar of the T-shaped slider 13, each of the racks 71 is respectively engaged with the gear 7, and the central axis of each gear 7 is respectively rotatably connected to the vertical plate 4, and the central axis end of each gear 7 is respectively fixedly connected to one end of the connecting rod 1 6, and the other end of each connecting rod 1 6 is respectively rotatably connected to one end of the top block support plate 5, and the other end of each top block support plate 5 is respectively rotatably connected to one end of the connecting rod 2 15, and the other end of each connecting rod 2 15 is respectively rotatably connected to one end of the connecting rod 3 16 and the connecting rod 4 18, and the other end of each connecting rod 3 16 is respectively rotatably connected to the connecting rod 1 6, and the other end of each connecting rod 4 18 is respectively rotatably connected to the vertical plate 4;

[0032] The other end of each of the top block support plates 5 is fixedly connected to the top block 3 .

[0033] The surface of the top block 3 is smooth.

[0034] The lower side of the T-shaped slider 13 is fixedly connected to the moving block 12 , and the other end of the moving block 12 is threadedly engaged with the screw rod 11 . The lower end of the screw rod 11 is fixed to the motor 10 , and the motor 10 fixes the support plate 9 .

[0035] Symmetrical guide posts 2 are fixed to the lower side of the piston block 1 , and the symmetrical guide posts 2 pass through the middle of both sides of the support plate 9 .

[0036] When in use, the motor 10 is started, and the moving block 12 is driven to move along the sliding direction of the T-shaped slider 13 through the screw 11. The movement of the moving block 12 causes the T-shaped slider 13 to move in the slide groove 14, and then drives the rack 71 to move along the moving direction of the slider. The rack 71 is engaged with the gear 7. The rotation of the gear 7 is transmitted through the connecting rod 1 6, the connecting rod 2 15, the connecting rod 3 16 and the connecting rod 4 18, thereby realizing the linkage between the vertical plate 4 and the top block support plate 5. The linkage between the vertical plate 4 and the top block support plate 5 drives the top block 3 to press against the symmetrical positions on both sides of the piston rod 20, thereby realizing the precise positioning of the piston rod 20. As the piston rod 20 moves, the piston block 1 moves accordingly in the outer cylinder 19 to perform the required function.

[0037] The piston block 1 drives the guide post 2 to move during its movement. The guide post 2 moves along the circular hole passing through the support plate 5. The guide post 2 plays a role of guiding and increasing stability.

[0038] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A piston-to-piston-rod connection structure for preventing a piston rod from breaking, comprising an outer cylinder (19), a piston rod (20), and a piston block (1), characterized in that: A support plate (9) is fixed inside the outer end of the outer cylinder (19), and the two ends of the support plate (9) are fixed to the outer cylinder (19) through connecting rods (8). The upper side of the support plate (9) is fixedly connected to the vertical plate (4), and the vertical plate (4) is connected to the piston rod limiting assembly; The piston rod limiting assembly includes a slide groove (14), the slide groove (14) is opened in the middle of one side of the support plate (9), one end of a T-shaped slider (13) is provided in the slide groove (14), and racks (71) are fixed at both ends of the cross bar of the T-shaped slider (13), each of the racks (71) is respectively engaged with a gear (7), the central axis of each gear (7) is respectively rotatably connected to the vertical plate (4), and the end of the central axis of each gear (7) is respectively fixedly connected to a connecting rod (6) one end of the connecting rod 1 (6), the other end of each connecting rod 1 (6) is respectively rotatably connected to one end of the top block support plate (5), the other end of each connecting rod 1 (5) is respectively rotatably connected to one end of the connecting rod 2 (15), the other end of each connecting rod 2 (15) is respectively rotatably connected to one end of the connecting rod 3 (16) and the connecting rod 4 (18), the other end of each connecting rod 3 (16) is respectively rotatably connected to the connecting rod 1 (6), and the other end of each connecting rod 4 (18) is respectively rotatably connected to the vertical plate (4); The other end portion of each top block support plate (5) is fixedly connected to the top block (3).

2. The piston-to-piston-rod connection structure for preventing piston rod breakage according to claim 1, wherein: The surface of the top block (3) is a smooth surface.

3. The piston-to-piston-rod connection structure for preventing piston rod breakage according to claim 2, wherein: The lower side of the T-shaped slider (13) is fixedly connected to the moving block (12), the other end of the moving block (12) is threadedly matched with the screw rod (11), the lower end of the screw rod (11) is fixed to the motor (10), and the motor (10) fixes the support plate (9).

4. The piston-to-piston-rod connection structure for preventing piston rod breakage according to claim 3, wherein: Symmetrical guide columns (2) are fixed on the lower side of the piston block (1), and the symmetrical guide columns (2) pass through the middle of both sides of the support plate (9).

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