A split-type piston rod

Abstract

This utility model relates to the field of piston rod technology, and more particularly to a piston rod with a split structure. The technical solution includes: a main rod body, the main rod body including a rod column, a connector provided at one end of the main rod body near the connecting end, the connector including a connecting column, a rubber pad provided between the main rod body and the connector, a quick-release end provided at one end of the connector away from the main rod body, the quick-release end including a base, a connecting end provided at one end of the base near the connector, a shock-absorbing seat provided at one end of the connecting end, and a closing ring provided on the outer ring of the connecting end near the end of the quick-release end and the connector. This utility model, by separating the main rod body, connector, and quick-release end, makes it easier for operators to replace and maintain the piston head. The shock-absorbing seat buffers and dampens vibrations experienced by the piston rod during operation, thereby protecting the piston rod.

Description

Technical Field

[0001] This utility model relates to the field of piston rod technology, and in particular to a piston rod with a split structure. Background Technology

[0002] The piston rod is an indispensable transmission component in hydraulic actuators. During operation, the hydraulic actuator transmits mechanical energy to the driven mechanism via the piston rod, causing the mechanism to move under its drive. Currently, most piston rods are integrally formed. In operation, the piston rod drives the piston in a reciprocating motion. After prolonged use, the piston may break or crack, requiring operator inspection, maintenance, and replacement. The integral piston rod makes this inconvenient for operator inspection and replacement. Furthermore, the piston rod is subjected to vibration during operation, which can damage its strength over time, reducing its service life. Therefore, we propose a split-type piston rod structure. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a split-type piston rod.

[0004] The technical solution of this utility model is as follows: A piston rod with a split structure includes a main rod body, the main rod body including a rod column, one end of the rod column being provided with a connecting end, the connecting end having an inner cavity, a connecting member being provided on the main rod body near the connecting end, the connecting member including a connecting column, a partition being provided inside the connecting column, a connecting post being provided on one side of the partition inside the connecting column, a rubber pad being provided between the main rod body and the connecting member, a quick-release end being provided on the connecting member away from the main rod body, the quick-release end including a base, a connecting end being provided on the base near the connecting member, a spring pin being provided inside the connecting end, a shock-absorbing seat being provided on one end of the connecting end, and a closing ring being provided on the outer ring of the connecting end near the quick-release end and the connecting member.

[0005] Preferably, the mounting end of the connecting end is installed corresponding to one end of the rod, the outer ring of the connecting end is provided with a threaded groove, the connecting rod is hollow, the mounting end of the partition is installed corresponding to the inner wall of the connecting rod, the inner wall of the connecting rod is provided with an internal thread on one side of the partition, and the partition is installed corresponding to the connecting end.

[0006] Preferably, the mounting end of the connecting column is installed corresponding to one side of the partition, and the connecting column is installed corresponding to the inner cavity.

[0007] Preferably, sealing rings are provided on both the upper and lower sides of the rubber pad. The sealing rings are arc-shaped. Arc-shaped grooves are provided on the sides of the rod and the connecting column that are close to each other. The sealing rings are installed in corresponding arc-shaped grooves.

[0008] Preferably, the mounting end of the connecting end is installed corresponding to one side of the base, the connecting end is provided with a mounting hole, the mounting end of the spring pin is installed corresponding to the mounting hole, the connecting column is provided with a pin hole, and when the quick-release end and the connecting piece are in the assembled state, both ends of the spring pin are installed corresponding to the pin hole.

[0009] Preferably, the outer ring of the connecting end has a groove, the inner wall of the connecting column has an inner sealing ring, the inner sealing ring is installed in the groove corresponding to the quick-release end and the connecting piece when they are assembled, and the mounting end of the shock absorber is installed in the same way as one end of the connecting end.

[0010] Preferably, a retaining ring is provided on both sides of the closed ring, and a sealing groove is provided on the side of the connecting column and the base that are close to each other, and the retaining ring and the sealing groove are installed correspondingly.

[0011] Compared with the prior art, the present invention has the following beneficial technical effects: This utility model has a simple overall structure. The main rod, connector, and quick-release end are arranged in a separate manner, which makes it easier for the operator to replace and maintain the piston head. At the same time, the shock-absorbing seat can buffer and dampen the vibration of the piston rod during operation, thereby protecting the piston rod. Meanwhile, the rubber pad and sealing ring can ensure the sealing of the main rod, connector, and quick-release end when they are assembled. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is an exploded view of the structure of this utility model.

[0013] Reference numerals: 1. Main rod; 11. Rod post; 12. Connecting end; 13. Inner cavity; 2. Connecting piece; 21. Connecting post; 22. Partition plate; 23. Connecting post; 3. Rubber pad; 31. Sealing ring; 4. Quick-release end; 41. Base; 42. Connecting end; 43. Spring pin; 44. Shock absorber seat; 5. Sealing ring; 51. Retaining ring; 6. Arc groove; 7. Mounting hole; 8. Pin hole; 9. Groove; 10. Inner sealing ring; 14. Sealing groove. Detailed Implementation

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Example like Figure 1-3 As shown, the present invention proposes a split-structure piston rod, including a main rod body 1, which includes a rod post 11. One end of the rod post 11 is provided with a connecting end 12, the mounting end of the connecting end 12 is installed correspondingly to one end of the rod post 11, and the mounting end of the connecting end 12 is fixedly connected to the rod post 11. An inner cavity 13 is formed inside the connecting end 12. A connector 2 is provided on the main rod body 1 near the connecting end 12. The connector 2 includes a connecting post 21, which is hollow. A partition 22 is provided inside the connecting post 21, and the mounting end of the partition 22 is aligned with the inner wall of the connecting post 21. The partition 22 is installed with its mounting end fixedly connected to the inner wall of the connecting column 21. The outer ring of the connecting end 12 is provided with a threaded groove. The inner wall of the connecting column 21 is provided with an internal thread on one side of the partition 22. The partition 22 is installed correspondingly to the connecting end 12 and is threadedly connected to the connecting end 12. A connecting column 23 is provided on one side of the partition 22 inside the connecting column 21. The mounting end of the connecting column 23 is installed correspondingly to one side of the partition 22 and is fixedly connected to one side of the partition 22. The connecting column 23 is installed correspondingly to the inner cavity 13 and the outer periphery of the connecting column 23 is tightly fitted to the inner wall of the inner cavity 13. A rubber pad 3 is provided between the main rod 1 and the connector 2. A sealing ring 31 is provided on both the upper and lower sides of the rubber pad 3. The mounting end of the sealing ring 31 is fixedly connected to the rubber pad 3. The sealing ring 31 is arc-shaped. An arc groove 6 is opened on the side close to each other of the rod column 11 and the connecting column 21. The sealing ring 31 is installed in correspondence with the arc groove 6. The sealing ring 31 and the arc groove 6 fit tightly. The setting of the rubber pad 3 can make the connector 2 and the main rod 1 have better fastening and sealing when they are assembled. A quick-release end 4 is provided at the end of the connector 2 away from the main rod 1. The quick-release end 4 includes a base 41. A connecting end 42 is provided on the base 41 near the connector 2. The mounting end of the connecting end 42 is installed corresponding to one side of the base 41 and is fixedly connected to the base 41. A groove 9 is provided on the outer ring of the connecting end 42. An inner sealing ring 10 is provided on the inner wall of the connecting post 21. The mounting end of the inner sealing ring 10 is fixedly connected to the inner wall of the connecting post 21. The quick-release end 4 and the connector 2 are in an assembled state. The inner sealing ring 10 is installed correspondingly to the groove 9, and the inner sealing ring 10 and the groove 9 fit tightly together. The setting of the inner sealing ring 10 and the groove 9 can provide better sealing when the quick-release end 4 and the connector 2 are in the assembled state. A spring pin 43 is provided in the connecting end 42, and a mounting hole 7 is opened on the connecting end 42. The mounting end of the spring pin 43 is installed correspondingly to the mounting hole 7, and the mounting end of the spring pin 43 is fixedly connected to the inner wall of the mounting hole 7. A pin hole 8 is opened on the connecting post 21. When the quick-release end 4 and the connector 2 are in the assembled state... Both ends of the spring pin 43 are installed corresponding to the pin holes 8. The two ends of the spring pin 43 are telescopic and slidably connected to the pin holes 8. The mutual cooperation between the spring pin 43 and the pin holes 8 allows the quick-release end 4 to be securely assembled with the connector 2. The connecting end 42 is installed corresponding to the inner wall of the connecting post 21 on the side of the partition 22 away from the connecting post 23. The connecting end 42 is slidably connected to the inner wall of the connecting post 21. One end of the connecting end 42 is provided with a shock absorber 44. The mounting end of the shock absorber 44 is connected to the connecting post 2. One end of the end 42 is installed accordingly, and the mounting end of the shock absorber 44 is fixedly connected to one end of the connecting end 42. The other end of the shock absorber 44 is tightly fitted to one side of the partition 22. The shock absorber 44 can buffer and dampen the vibration of the quick-release end 4 when it is in operation, thereby protecting the device from vibration. The quick-release end 4 can be assembled with the piston head. The quick-release end 4 is separated from the main rod 1 by the connector 2, which allows the operator to quickly inspect and replace the piston head. A closing ring 5 is provided on the outer ring of the quick-release end 4 and the connector 2, which are close to each other. A retaining ring 51 is provided on both sides of the closing ring 5. The mounting end of the retaining ring 51 is fixedly connected to the closing ring 5. A sealing groove 14 is provided on the side of the connecting column 21 and the base 41 that are close to each other. The retaining ring 51 is installed in correspondence with the sealing groove 14. The retaining ring 51 is tightly fitted to the inner wall of the sealing groove 14. The setting of the closing ring 5 can provide better sealing when the quick-release end 4 and the connector 2 are in the assembled state.

[0016] In this embodiment, the operator first places the rubber pad 3 on the outer ring of the connecting end 12, so that the sealing ring 31 on one side of the rubber pad 3 corresponds to the arc groove 6 on the rod 11. Then, the operator rotates and assembles the inner wall of the connecting rod 21 with the outer ring of the connecting end 12, so that the connecting rod 21 and the connecting end 12 are threadedly connected. At this time, the connecting rod 23 and the inner cavity 13 are tightly fitted, thereby completing the assembly of the connecting part 2 and the main rod body 1. Then, the operator places the sealing ring 5 on the outer ring of the connecting end 42. At this time, the retaining ring 51 on one side of the sealing ring 5 corresponds to the sealing groove 14 on the base 41. Then, the operator inserts the connecting end 42 with the shock-absorbing seat 44 into the other end of the connecting rod 21. When the top end of the connecting end 42 is inserted into the connecting rod 21, the operator squeezes the two ends of the spring pin 43 inward. The operator pushes the quick-release end 4, causing the two ends of the spring pin 43 to retract into the mounting hole 7. Then, the operator continues to push the quick-release end 4, causing the base 41 to drive the connecting end 42 to continue sliding into the connecting post 21. At this time, the inner wall of the connecting post 21 presses the two ends of the spring pin 43. When the connecting end 42 drives the spring pin 43 to slide to the pin hole 8, the spring pin 43 is no longer under pressure and returns to its initial state, so that the two ends of the spring pin 43 are pinned in the pin hole 8. At this time, one side of the shock absorber 44 is tightly fitted with one side of the partition 22. At this time, the groove 9 on the outer ring of the connecting end 42 is installed in accordance with the inner sealing ring 10 on the inner wall of the connecting post 21. At the same time, the retaining ring 51 on the other side of the sealing ring 5 is installed in accordance with the sealing groove 14 on the connecting post 21, thereby completing the assembly of the quick-release end 4 and the connecting part 2, and then completing the assembly of the piston rod.

[0017] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. A split-type piston rod, comprising a main rod body (1), characterized in that: The main rod (1) includes a rod column (11), one end of which is provided with a connecting end (12). An inner cavity (13) is opened in the connecting end (12). A connector (2) is provided on one end of the main rod (1) near the connecting end (12). The connector (2) includes a connecting post (21). A partition (22) is provided in the connecting post (21). A connecting post (23) is provided on one side of the partition (22) inside the connecting post (21). A connection is provided between the main rod (1) and the connector (2). A rubber pad (3) is provided. A quick-release end (4) is provided at one end of the connector (2) away from the main rod (1). The quick-release end (4) includes a base (41). A connecting end (42) is provided on the base (41) near the connector (2). A spring pin (43) is provided inside the connecting end (42). A shock-absorbing seat (44) is provided at one end of the connecting end (42). A closing ring (5) is provided on the outer ring of the connecting end (42) at one end of the quick-release end (4) and the connector (2) that are close to each other.

2. The piston rod with a split structure according to claim 1, characterized in that, The mounting end of the connecting end (12) is installed corresponding to one end of the rod (11). The outer ring of the connecting end (12) is provided with a threaded groove. The connecting rod (21) is hollow. The mounting end of the partition (22) is installed corresponding to the inner wall of the connecting rod (21). The inner wall of the connecting rod (21) is provided with an internal thread on one side of the partition (22). The partition (22) is installed corresponding to the connecting end (12).

3. The piston rod with a split structure according to claim 1, characterized in that, The mounting end of the connecting column (23) is installed corresponding to one side of the partition plate (22), and the connecting column (23) is installed corresponding to the inner cavity (13).

4. The piston rod with a split structure according to claim 1, characterized in that, The rubber pad (3) is provided with sealing rings (31) on both the upper and lower sides. The sealing rings (31) are arranged in an arc shape. The rod (11) and the connecting rod (21) are provided with arc grooves (6) on the side close to each other. The sealing rings (31) and the arc grooves (6) are installed in correspondence.

5. The piston rod with a split structure according to claim 1, characterized in that, The mounting end of the connecting end (42) is installed corresponding to one side of the base (41). The connecting end (42) is provided with a mounting hole (7). The mounting end of the spring pin (43) is installed corresponding to the mounting hole (7). The connecting column (21) is provided with a pin hole (8). When the quick-release end (4) and the connecting piece (2) are in the assembled state, both ends of the spring pin (43) are installed corresponding to the pin hole (8).

6. The piston rod with a split structure according to claim 1, characterized in that, The outer ring of the connecting end (42) is provided with a groove (9), and the inner wall of the connecting column (21) is provided with an inner sealing ring (10). When the quick-release end (4) and the connecting piece (2) are in the assembled state, the inner sealing ring (10) and the groove (9) are installed in correspondence. The mounting end of the shock absorber (44) is installed in correspondence with one end of the connecting end (42).

7. The piston rod with a split structure according to claim 1, characterized in that, Both sides of the closed ring (5) are provided with retaining rings (51), and the connecting column (21) and the base (41) are provided with sealing grooves (14) on the side close to each other. The retaining rings (51) and sealing grooves (14) are installed in correspondence.

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