A hydraulic cylinder with buffer function

Abstract

The utility model belongs to the technical field of hydraulic cylinders, specifically a hydraulic cylinder with a buffering function, including a hydraulic cylinder body, a piston rod and a piston body, wherein a piston rod is arranged inside the hydraulic cylinder body, and a piston body is connected to a side of the piston rod extending to the inside of the hydraulic cylinder body. By moving the piston rod and the piston body, the piston body can push the buffer plate, and at the same time the U-shaped spring sheet is squeezed, and the buffer plate drives the sleeve and the first spring to be squeezed by the fixed rod, so that the impact force caused by the hydraulic cylinder body when resetting is generated can be better buffered, so that the hydraulic cylinder body can be safer when resetting, and the pull ring is pulled apart from the locking groove after turning the bolt, and vice versa, the pull rod is locked with the dust ring, so that the dust ring is installed on the surface of the piston rod, so that when the piston rod is pushed into the inside of the hydraulic cylinder body, dust in the air can be prevented from adhering to the surface of the piston rod, so that the hydraulic cylinder body is more convenient when in use.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder with a buffer function. Background Art

[0002] Hydraulic cylinders are very common hydraulic actuators in the process of industrial and mechanical processing and manufacturing. Hydraulic cylinders have a simple structure and work simply and reliably. When hydraulic cylinders are used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, they are widely used in the hydraulic systems of various machines. However, there are still some defects in the current hydraulic cylinders, such as:

[0003] When using an existing hydraulic cylinder, the piston rod needs to perform continuous reciprocating motion, and the piston will impact the bottom of the cylinder when performing the reset motion, so that the hydraulic cylinder is prone to loosening after a long period of impact, and the bottom of the hydraulic cylinder is prone to loosening or damage, making the hydraulic cylinder inconvenient to use. Summary of the invention

[0004] The purpose of the utility model is to provide a hydraulic cylinder with a buffering function to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic cylinder with a buffering function, comprising a hydraulic cylinder body, a piston rod and a piston body;

[0006] A piston rod is arranged inside the hydraulic cylinder body, and one side of the piston rod extending into the inside of the hydraulic cylinder body is connected to the piston body.

[0007] Preferably, a buffer mechanism is provided on one side inside the hydraulic cylinder body, and the buffer mechanism includes a spring damper, a connecting plate, a buffer plate, a U-shaped spring sheet, a fixing rod, a sleeve and a first spring. A spring damper is provided on one side inside the hydraulic cylinder body, a connecting plate is connected to the side of the spring damper close to the piston body, a buffer plate is provided on the side of the connecting plate away from the spring damper, and a U-shaped spring sheet is welded between the buffer plate and the connecting plate.

[0008] Preferably, a fixing rod is provided on one end of the surface of the connecting plate close to the U-shaped spring piece, a sleeve is provided on one side of the buffer plate close to the fixing rod, and a first spring is welded to the fixing rod and the sleeve.

[0009] Preferably, a locking mechanism is provided on the side of the hydraulic cylinder body close to the piston rod, and the locking mechanism includes a dust ring, a locking groove, a pull rod, a pull ring, an empty groove, a second spring, a reserved groove and a bolt. A dust ring is provided on the outer side of the hydraulic cylinder body close to the piston rod, and locking grooves are provided at both ends of the dust ring. A pull rod is engaged inside the locking groove, and one end of the pull rod is connected to a pull ring.

[0010] Preferably, a hollow groove is provided on one side of the hydraulic cylinder body close to the pull rod, and a second spring is welded and connected between the hollow groove and the pull rod.

[0011] Preferably, a reserved groove is provided at the bottom end of the pull rod, and a bolt extending into the reserved groove is provided inside the hydraulic cylinder body.

[0012] Preferably, a T-shaped slider is welded to one side of the pull rod, a T-shaped slide groove is provided on one side of the empty slot close to the T-shaped slider, and the pull rod and the empty slot form a sliding structure through the T-shaped slider and the T-shaped slide groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The hydraulic cylinder with buffer function can move the piston rod so that the piston rod can drive the piston body to move when moving, so that the piston body can push the buffer plate, and the buffer plate can squeeze the U-shaped spring sheet when moving, and the buffer plate can drive the sleeve to move when moving, and the sleeve and the first spring can be squeezed by the fixed rod when moving, so that the impact force caused by the hydraulic cylinder body when resetting can be better buffered, and the spring damper arranged on one side of the connecting plate can buffer the remaining impact force, so that the hydraulic cylinder body can be safer when resetting;

[0015] 2. The hydraulic cylinder with a buffer function can separate the bolt from the reserved groove by rotating the bolt, so that pulling the pull ring can drive the pull rod to move, and at the same time, the pull rod can drive the T-shaped slider to move inside the T-shaped slide groove when moving, so that the pull rod can be more stable when moving, and the pull rod can squeeze the second spring connected to one side when moving, so that the pull rod can be separated from the locking groove. Conversely, the pull rod can be locked with the locking groove through the reset effect of the second spring. After the pull rod and the dust ring are locked, the bolt is rotated into the reserved groove so that the dust ring can be installed on the surface of the piston rod. When the piston rod is pushed into the hydraulic cylinder body, dust in the air can be prevented from adhering to the surface of the piston rod. At the same time, the worn dust ring can be quickly replaced, making the hydraulic cylinder body more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a front view cross-sectional structural schematic diagram of the utility model;

[0017] Figure 2 It is a side view structural schematic diagram of the utility model;

[0018] Figure 3 It is a front view cross-sectional enlarged structural schematic diagram of the buffer mechanism of the utility model;

[0019] Figure 4 It is a front view enlarged cross-sectional structural schematic diagram of the engaging mechanism of the utility model.

[0020] In the figure: 1. hydraulic cylinder body; 2. piston rod; 3. piston body; 4. buffer mechanism; 401. spring damper; 402. connecting plate; 403. buffer plate; 404. U-shaped spring; 405. fixing rod; 406. sleeve; 407. first spring; 5. engaging mechanism; 501. dustproof ring; 502. locking groove; 503. pull rod; 504. pull ring; 505. empty groove; 506. second spring; 507. reserved groove; 508. bolt; 6. T-shaped slider; 7. T-shaped slide groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 and Figure 2 It can be seen that the utility model provides a technical solution: a hydraulic cylinder with a buffering function, comprising a hydraulic cylinder body 1, a piston rod 2 and a piston body 3;

[0023] A piston rod 2 is arranged inside the hydraulic cylinder body 1, and the side of the piston rod 2 extending into the inside of the hydraulic cylinder body 1 is connected with the piston body 3, and a buffer mechanism 4 is arranged on one side inside the hydraulic cylinder body 1, and the buffer mechanism 4 includes a spring damper 401, a connecting plate 402, a buffer plate 403, a U-shaped spring piece 404, a fixing rod 405, a sleeve 406 and a first spring 407. A spring damper 401 is arranged on one side inside the hydraulic cylinder body 1, and a connecting plate 402 is connected to the side of the spring damper 401 close to the piston body 3, and a buffer plate 403 is arranged on the side of the connecting plate 402 away from the spring damper 401, and a U-shaped spring piece 404 is welded between the buffer plate 403 and the connecting plate 402, and a fixing rod 405 is arranged on one end of the surface of the connecting plate 402 close to the U-shaped spring piece 404, and a sleeve 406 is arranged on the side of the buffer plate 403 close to the fixing rod 405, and a first spring 407 is welded between the fixing rod 405 and the sleeve 406.

[0024] See also Figure 1 and Figure 2 It can be seen that by moving the piston rod 2 and the piston body 3, the piston body 3 can push the buffer plate 403, and at the same time the U-shaped spring piece 404 is squeezed, and the buffer plate 403 drives the sleeve 406 and the first spring 407 to be squeezed by the fixed rod 405, so that the impact force caused by the hydraulic cylinder body 1 during resetting can be better buffered, thereby making the hydraulic cylinder body 1 safer during resetting.

[0025] See also Figure 1 , Figure 3 and Figure 4 It can be seen that a clamping mechanism 5 is provided on one side of the hydraulic cylinder body 1 close to the piston rod 2. The clamping mechanism 5 includes a dust ring 501, a locking groove 502, a pull rod 503, a pull ring 504, an empty groove 505, a second spring 506, a reserved groove 507 and a bolt 508. A dust ring 501 is provided on the outer side of the hydraulic cylinder body 1 close to the piston rod 2. Locking grooves 502 are provided at both ends of the dust ring 501. The locking groove 502 is clamped with a pull rod 503. One end of the pull rod 503 is connected to the pull ring 504. An empty slot 505 is provided on one side of the cylinder body 1 close to the pull rod 503, a second spring 506 is welded between the empty slot 505 and the pull rod 503, a reserved slot 507 is provided at the bottom end of the pull rod 503, a bolt 508 extending to the reserved slot 507 is provided inside the hydraulic cylinder body 1, a T-shaped slider 6 is welded on one side of the pull rod 503, a T-shaped slide groove 7 is provided on the side of the empty slot 505 close to the T-shaped slider 6, and the pull rod 503 and the empty slot 505 form a sliding structure through the T-shaped slider 6 and the T-shaped slide groove 7.

[0026] See also Figure 1 , Figure 3 and Figure 4It can be known that by turning the bolt 508, the pull ring 504 is pulled apart from the locking groove 502. Conversely, the pull rod 503 is locked with the dust ring 501, so that the dust ring 501 is installed on the surface of the piston rod 2. When the piston rod 2 is pushed into the hydraulic cylinder body 1, dust in the air can be prevented from adhering to the surface of the piston rod 2, making the hydraulic cylinder body 1 more convenient to use.

[0027] To sum up, the hydraulic cylinder is a very common hydraulic actuator in the process of industrial and mechanical processing and manufacturing. By moving the piston rod 2 and the piston body 3, the piston body 3 pushes the buffer plate 403. At the same time, the buffer plate 403 can squeeze the U-shaped spring plate 404 when moving, and the buffer plate 403 can drive the sleeve 406 and the first spring 407 to be squeezed by the fixed rod 405 when moving, so that the impact force caused by the hydraulic cylinder body 1 when resetting can be better buffered, and the spring damper 401 arranged on one side of the connecting plate 402 can buffer the remaining impact force, so that the hydraulic cylinder body 1 can be safer when resetting. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hydraulic cylinder with a buffering function, comprising a hydraulic cylinder body (1), a piston rod (2) and a piston body (3), characterized in that: A piston rod (2) is arranged inside the hydraulic cylinder body (1); a piston rod (2) is connected to a piston body (3) on one side of the piston rod (2) extending inside the hydraulic cylinder body (1); a buffer mechanism (4) is arranged on one side inside the hydraulic cylinder body (1); the buffer mechanism (4) comprises a spring damper (401), a connecting plate (402), a buffer plate (403), a U-shaped spring sheet (404), a fixing rod (405), a sleeve (406) and a first spring (407); a spring damper (401) is arranged on one side inside the hydraulic cylinder body (1); the spring damper (401) A connecting plate (402) is connected to the side close to the piston body (3), a buffer plate (403) is provided on the side of the connecting plate (402) away from the spring damper (401), a U-shaped spring sheet (404) is welded between the buffer plate (403) and the connecting plate (402), a fixing rod (405) is provided on one end of the surface of the connecting plate (402) close to the U-shaped spring sheet (404), a sleeve (406) is provided on the side of the buffer plate (403) close to the fixing rod (405), and a first spring (407) is welded between the fixing rod (405) and the sleeve (406).

2. A hydraulic cylinder with a buffering function according to claim 1, characterized in that: A locking mechanism (5) is provided on the side of the hydraulic cylinder body (1) close to the piston rod (2), and the locking mechanism (5) comprises a dust ring (501), a locking groove (502), a pull rod (503), a pull ring (504), an empty groove (505), a second spring (506), a reserved groove (507) and a bolt (508). A dust ring (501) is provided on the outer side of the hydraulic cylinder body (1) close to the piston rod (2), and locking grooves (502) are provided at both ends of the dust ring (501), and a pull rod (503) is engaged inside the locking groove (502), and one end of the pull rod (503) is connected to the pull ring (504).

3. A hydraulic cylinder with a buffering function according to claim 2, characterized in that: A hollow groove (505) is provided on one side of the hydraulic cylinder body (1) close to the pull rod (503), and a second spring (506) is welded between the hollow groove (505) and the pull rod (503).

4. A hydraulic cylinder with a buffering function according to claim 3, characterized in that: A reserved groove (507) is provided at the bottom end of the pull rod (503), and a bolt (508) extending into the reserved groove (507) is provided inside the hydraulic cylinder body (1).

5. The hydraulic cylinder with buffer function according to claim 4, characterized in that: A T-shaped slider (6) is welded to one side of the pull rod (503), a T-shaped slide groove (7) is provided on the side of the empty slot (505) close to the T-shaped slider (6), and the pull rod (503) and the empty slot (505) form a sliding structure through the T-shaped slider (6) and the T-shaped slide groove (7).

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