CN220726722U

CN220726722U - Hydraulic cylinder

Info

Publication number: CN220726722U
Application number: CN202321733235.2U
Authority: CN
Inventors: 杨杰
Original assignee: Foshan Taiqin Hydraulic Technology Co ltd
Current assignee: Foshan Taiqin Hydraulic Technology Co ltd
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2024-04-05
Anticipated expiration: 2033-07-04

Abstract

The utility model discloses a hydraulic cylinder, in particular to the field of hydraulic cylinders, which comprises a cylinder body, wherein a liquid inlet is formed in the outer wall of the cylinder body, a hydraulic rod is slidably connected to the inner wall of the cylinder body, one end of the hydraulic rod is fixedly connected with a piston, the piston is slidably connected to the inside of the cylinder body, a chute is formed in the outer wall of the piston, a fixing piece is slidably connected to the inside of the chute, a first hinging rod is hinged to one side of the fixing piece, the first hinging rod is hinged to the outer wall of the piston, a second hinging rod is hinged to one side of the fixing piece, a circular plate is hinged to one end of the second hinging rod, which is far away from the fixing piece, and the circular plate is slidably connected to the inner wall of the cylinder body. The utility model is provided with the fixing piece and the circular plate, when hydraulic oil is injected into the cylinder body through the liquid inlet, the hydraulic oil pushes the piston to slide through the circular plate, finally the fixing piece is attached to the inner wall of the cylinder body, the friction force between the fixing piece and the inner wall of the cylinder body is increased, the impact is well transmitted to a part of the cylinder body, and the locking effect of the hydraulic cylinder is improved.

Description

Hydraulic cylinder

Technical Field

The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder.

Background

The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and performs linear reciprocating motion, has simple structure and reliable work, can avoid a speed reducing device when being used for realizing reciprocating motion, has no transmission clearance and stable motion, and is widely applied to hydraulic systems of various machines.

The Chinese patent disclosure CN215805491U discloses a hydraulic cylinder, which comprises a cylinder body, wherein the rear end of the cylinder body is fixedly provided with a base; an annular guide sleeve is arranged on the inner side of the opening of the cylinder body, a cylinder cover is arranged on the opening of the cylinder body, and the cylinder cover is tightly and hermetically connected with the mounting ring; the cylinder cover and the guide sleeve are in sliding insertion connection with a piston rod, one free end of the piston rod is positioned outside the cylinder body, and the other free end extends into the cylinder body and is connected with a piston; the buffer spring is sleeved on the piston rod, but when the buffer spring is used for buffering impact generated when the hydraulic rod reaches the stroke end, the spring can be extruded by the piston for a long time after being impacted, so that the service life of the buffer spring can be shortened rapidly.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, the embodiment of the present utility model provides a hydraulic cylinder, by providing a fixing member and a circular plate, after hydraulic oil is injected into the cylinder through a liquid inlet, the hydraulic oil pushes a piston to slide along the inner wall of the cylinder through the circular plate, and finally the fixing member is attached to the inner wall of the cylinder, so that the friction between the fixing member and the inner wall of the cylinder is increased, and the impact is well transferred to a part of the cylinder, so as to solve the problems set forth in the above-mentioned background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pneumatic cylinder, includes the cylinder body, the inlet has been seted up to the outer wall of cylinder body, the inner wall sliding connection of cylinder body has the hydraulic stem, the one end fixedly connected with piston of hydraulic stem, piston sliding connection is in the inside of cylinder body, the spout has been seted up to the outer wall of piston, the inside sliding connection of spout has the mounting, one side of mounting articulates there is first articulated rod, first articulated rod articulates the outer wall at the piston, one side of mounting articulates there is the second articulated rod, the one end that the mounting was kept away from to the second articulated rod articulates there is the plectane, plectane sliding connection is at the inner wall of cylinder body, one side fixedly connected with connecting rope of plectane, connecting rope fixed connection is at the outer wall of piston, the exhaust hole has been seted up to the outer wall of cylinder body.

In a preferred embodiment, the outer wall of the hydraulic rod is sleeved with a pressing piece, and one side of the pressing piece is fixedly connected with a connecting rod.

In a preferred embodiment, the connecting rod is inserted into the cylinder, and one end of the connecting rod is fixedly connected with the pressing plate.

In a preferred embodiment, the pressing plate is slidably connected to the inside of the cylinder, and an air bag is fixedly installed on one side of the pressing plate.

In a preferred embodiment, a whistle is fixedly arranged on the outer wall of the air bag, and is inserted into the cylinder body.

In a preferred embodiment, one end of the hydraulic rod is fixedly connected with a circular pressing plate, and the outer wall of the hydraulic rod is sleeved with a dustproof pad which is arranged in the cylinder body.

The utility model has the technical effects and advantages that:

1. according to the hydraulic cylinder locking device, the fixing piece and the circular plate are arranged, when hydraulic oil is injected into the cylinder body through the liquid inlet, the hydraulic oil pushes the piston to slide along the inner wall of the cylinder body through the circular plate, the piston slides to push the hydraulic rod to move, when the piston drives the hydraulic rod to reach the stroke end point quickly, the circular plate sleeved on the outer wall of the hydraulic rod can be extruded, the circular plate is extruded to push the fixing piece to move towards the inner wall of the cylinder body along the sliding groove through the second hinging rod, and the fixing piece is attached to the inner wall of the cylinder body, so that the friction force between the fixing piece and the inner wall of the cylinder body is increased, and then the fixing piece can transmit impact generated when reaching the stroke end point to the cylinder body, and the locking effect of the hydraulic cylinder is improved;

2. according to the hydraulic cylinder, the air bag and the whistle are arranged, when the hydraulic rod and the piston reach the stroke end quickly, the pressing piece is pressed by the circular plate or the circular pressing plate to move, the connecting rod is driven to move by the movement of the pressing piece, the pressing plate is driven to slide along the inner wall of the cylinder body by the movement of the connecting rod, the air bag and the pressure spring are pressed by the pressing plate to discharge air in the air bag through the whistle, the whistle makes sound to remind a worker to stop pumping oil of the hydraulic pump, and problems of the hydraulic cylinder are prevented.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a cross-sectional view of the cylinder structure of the present utility model.

Fig. 3 is an enlarged view of the structure of the portion a of fig. 2 according to the present utility model.

Fig. 4 is an enlarged view of the B-section structure of fig. 2 according to the present utility model.

The reference numerals are: 1. a cylinder; 2. a liquid inlet; 3. a hydraulic rod; 4. a piston; 5. a chute; 6. a fixing member; 7. a first hinge lever; 8. a second hinge lever; 9. a circular plate; 10. a connecting rope; 11. an exhaust hole; 12. a pressing piece; 13. a connecting rod; 14. a pressing plate; 15. an air bag; 16. a pressure spring; 17. a siren; 18. a circular pressing plate; 19. a dust-proof pad.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1: referring to the description attached to figures 1-4, the hydraulic cylinder disclosed by the utility model comprises a cylinder body 1, wherein a liquid inlet 2 is formed in the outer wall of the cylinder body 1, a hydraulic rod 3 is slidably connected to the inner wall of the cylinder body 1, the piston 4 is fixedly connected to one end of the hydraulic rod 3, a spring is arranged between the piston 4 and a circular plate 9, when the circular plate 9 is pushed by hydraulic oil, the sliding groove 5 cannot be pushed to be attached to the inner wall of the cylinder body 1 through a second hinging rod 8, the piston 4 is slidably connected to the inside of the cylinder body 1, the sliding groove 5 is formed in the outer wall of the piston 4, the fixing piece 6 is limited through the arrangement of the sliding groove 5, the fixing piece 6 is slidably connected to the fixing piece 6, one side of the fixing piece 6 is hinged with a first hinging rod 7, the first hinging rod 7 is in a telescopic arrangement through the first hinging rod 7, the first hinging rod 7 is hinged to the outer wall of the piston 4, one side of the fixing piece 6 is hinged with a second hinging rod 8, the second hinging rod 8 is far away from the circular plate 9 and is connected to the inner wall of the cylinder body 1 through the circular plate 9, and one side of the fixing piece is connected to the circular plate 9 is fixedly connected to one side of the circular plate 9 of the cylinder body through the sliding rope 10, and the fixing piece is connected to the circular plate 9 is fixedly connected to one side of the inner wall of the circular plate 1 through the circular plate 9, and the inner wall is connected to the inner wall of the circular plate 9 is fixedly connected to the inner wall of the circular plate 9 through the telescopic rope 10, and the telescopic rope is fixedly connected to the inner wall is arranged on the inner wall 1 through the inner wall 1, and the one side of the inner wall is connected with one rope is fixedly connected with one rope 10 is connected with one rope 10 through the rope 10.

It should be noted that, after hydraulic oil is injected into the cylinder 1 through the liquid inlet 2, the hydraulic oil pushes the circular plate 9 to move along the inner wall of the cylinder 1, so that the circular plate 9 pushes the piston 4 to slide along the inner wall of the cylinder 1 through a spring installed between the circular plate 9 and the piston 4, the piston 4 slides to push the hydraulic rod 3 to move, when the piston 4 quickly drives the hydraulic rod 3 to reach the end of the stroke, the circular plate 9 sleeved on the outer wall of the hydraulic rod 3 is extruded, the circular plate 9 is extruded to push the fixing piece 6 to move along the inner wall of the chute 5 through the second hinging rod 8 and to be attached to the inner wall of the cylinder 1, so that the friction force between the fixing piece 6 and the inner wall of the cylinder 1 is increased, the fixing piece 6 further transfers the impact generated by the hydraulic rod 3 and the piston 4 to a part of the cylinder 1 when the impact generated by the end of the stroke is reached, the locking effect of the hydraulic rod 3 and the piston 4 is increased, the impact generated by the end of the stroke is buffered and the locking effect is increased, and all the generated impacts are prevented from being impacted on the cylinder seat and the cylinder cover.

Example 2: the outer wall of hydraulic stem 3 has cup jointed casting die 12, one side fixedly connected with connecting rod 13 of casting die 12, connecting rod 13 pegging graft in the inside of cylinder body 1, the one end fixedly connected with clamp plate 14 of connecting rod 13, clamp plate 14 sliding connection is in the inside of cylinder body 1, one side fixed mounting of clamp plate 14 has gasbag 15, gasbag 15 fixed mounting is in the inside of cylinder body 1, the inside fixed mounting of gasbag 15 has pressure spring 16, the outer wall fixed mounting of gasbag 15 has steam whistle 17, steam whistle 17 pegging graft in the inside of cylinder body 1, the one end fixedly connected with circular clamp plate 18 of hydraulic stem 3, the outer wall of hydraulic stem 3 has cup jointed dustproof pad 19, dustproof pad 19 sets up in the inside of cylinder body 1.

When the hydraulic rod 3 and the piston 4 reach the end of the stroke, the pressing piece 12 is pressed by the circular plate 9 or the circular pressing plate 18, the pressing piece 12 moves to drive the connecting rod 13 to move, the connecting rod 13 moves to drive the pressing plate 14 to slide along the inner wall of the cylinder body 1, the pressing plate 14 slides to press the air bag 15 and the pressure spring 16, the air bag 15 is pressed to discharge the air inside through the whistle 17, the whistle 17 makes sound to remind a worker to stop pumping oil of the hydraulic pump, the problem of the hydraulic cylinder is prevented, the pressure spring 16 is compressed to shrink and share a part of impact generated when reaching the end of the stroke, so that the service life of the hydraulic pump is further reduced, and the pressure spring 16 pushes the pressing plate 14 to reset after the pressing of the pressing piece 12 is stopped, and the pressing plate 14 resets to pull the air bag 15 to absorb the air to expand, so that the air bag 15 can work again when being pressed next time.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. Hydraulic cylinder, comprising a cylinder body (1), characterized in that: the utility model discloses a cylinder body, including cylinder body (1), inner wall sliding connection of cylinder body (1) has seted up inlet (2), the inner wall sliding connection of cylinder body (1) has hydraulic stem (3), the one end fixedly connected with piston (4) of hydraulic stem (3), the inside of piston (4) sliding connection at cylinder body (1), spout (5) have been seted up to the outer wall of piston (4), the inside sliding connection of spout (5) has mounting (6), one side of mounting (6) articulates there is first articulated rod (7), first articulated rod (7) articulates the outer wall at piston (4), one side of mounting (6) articulates there is second articulated rod (8), the one end that mounting (6) was kept away from to second articulated rod (8) has plectane (9), the inner wall at cylinder body (1) of plectane (9) one side fixedly connected with connecting rope (10), connecting rope (10) fixedly connected with is at the outer wall of piston (4), exhaust hole (11) have been seted up to the outer wall of cylinder body (1).

2. A hydraulic cylinder according to claim 1, characterized in that: the outer wall of the hydraulic rod (3) is sleeved with a pressing piece (12), and one side of the pressing piece (12) is fixedly connected with a connecting rod (13).

3. A hydraulic cylinder according to claim 2, characterized in that: the connecting rod (13) is inserted into the cylinder body (1), and one end of the connecting rod (13) is fixedly connected with the pressing plate (14).

4. A hydraulic cylinder according to claim 3, wherein: the pressing plate (14) is connected inside the cylinder body (1) in a sliding mode, and an air bag (15) is fixedly arranged on one side of the pressing plate (14).

5. A hydraulic cylinder according to claim 4, wherein: the air bag (15) is fixedly arranged in the cylinder body (1), and a pressure spring (16) is fixedly arranged in the air bag (15).

6. A hydraulic cylinder according to claim 5, wherein: the outer wall of the air bag (15) is fixedly provided with a whistle (17), and the whistle (17) is inserted into the cylinder body (1).

7. A hydraulic cylinder according to claim 6, wherein: one end fixedly connected with circular clamp plate (18) of hydraulic stem (3), the outer wall of hydraulic stem (3) has cup jointed dustproof pad (19), dustproof pad (19) set up the inside at cylinder body (1).