CN212775034U

CN212775034U - Leak protection hydraulic cylinder

Info

Publication number: CN212775034U
Application number: CN202021573992.4U
Authority: CN
Inventors: 李谨生
Original assignee: Jianhu Aotos Hydraulic Machinery Manufacturing Co ltd
Current assignee: Jianhu Aotos Hydraulic Machinery Manufacturing Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-03-23
Anticipated expiration: 2030-08-03

Abstract

The utility model discloses a leak-proof hydraulic cylinder, which comprises a cylinder body, an oil inlet channel and an oil outlet channel, wherein the oil inlet channel and the oil outlet channel are respectively fixed on the upper side and the lower side of the left end surface of the cylinder body in a penetrating way, a first baffle plate is arranged on the inner side of a first limit ring, a second fixing frame is fixed in the oil outlet channel, a second baffle plate is arranged on the inner side of a second limit ring, oil can flow into the cylinder body through the oil inlet channel and then flow out through the oil outlet channel, the oil is in a circulating flow state, the first baffle plate is moved rightwards under pressure in the oil inlet process, when stopping oil inlet, the first baffle plate can be moved leftwards under the reset action of a compression spring and is clung to the first limit ring, when oil outlet, the second baffle plate is moved leftwards under the pressure, when stopping oil outlet, the second baffle plate can be moved rightwards under the reset action of an extension spring and is clung to the right with the second limit ring, the oil backflow is prevented, and the oil leakage phenomenon can be effectively avoided.

Description

Leak protection hydraulic cylinder

Technical Field

The utility model relates to a hydraulic cylinder technical field specifically is an leak protection hydraulic cylinder.

Background

The hydraulic oil cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion, has simple structure and reliable work, can remove a speed reducer when realizing reciprocating motion, has no transmission clearance and moves stably, thereby being widely applied to hydraulic systems of various machines.

The existing hydraulic oil cylinder is used, if the pressure in the cylinder body is too large, oil backflow is easy to occur, so that oil leakage is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a leak protection hydraulic cylinder to solve the current hydraulic cylinder that proposes in the above-mentioned background art at the in-process that is used, if the pressure in the cylinder body is too big, then the phenomenon of oil refluence easily appears, thereby the problem of oil leak easily appears.

In order to achieve the above object, the utility model provides a following technical scheme: an anti-leakage hydraulic oil cylinder comprises a cylinder body, an oil inlet channel and an oil outlet channel, wherein a first connector is fixed at the bottom of the cylinder body, the top of the cylinder body is connected with the second connector through a fixing column, the oil inlet channel and the oil outlet channel are respectively fixed on the upper side and the lower side of the left end surface of the cylinder body in a penetrating way, a first fixing frame is fixed in the oil inlet channel, meanwhile, the left side of the first fixing frame is connected with a first baffle plate through a compression spring, the first baffle plate is arranged on the inner side of the first limiting ring, the first limiting ring is fixed at the inner side of the oil inlet channel, a second fixing frame is fixed in the oil outlet channel, the left side of the second fixing frame is connected with a second baffle plate through an extension spring, the second baffle plate is arranged at the inner side of the second limiting ring, and the second spacing ring is fixed at the inner side of the oil outlet channel, and the left side of the first spacing ring and the left side of the second spacing ring are both fixed with connecting sleeves.

Preferably, the second connector is rotatably connected to the top of the fixed column.

Preferably, the oil inlet channel and the oil outlet channel are symmetrically arranged.

Preferably, the first baffle penetrates through the first fixing frame, the first baffle and the first fixing frame form a telescopic structure through a compression spring, and the compression spring wraps the outer side of the first baffle.

Preferably, the second baffle penetrates through the second fixing frame, the second baffle and the second fixing frame form a telescopic structure through an extension spring, and the extension spring wraps the outer side of the second baffle.

Preferably, a sealing ring and a convex ring are fixed on the outer side of the connecting sleeve, the sealing ring is arranged on the left side of the convex ring, and the convex rings are distributed at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that: the anti-leakage hydraulic oil cylinder is provided with a hydraulic oil cylinder,

(1) the second connector can be rotated before the device is installed, so that the direction of the second connector can be conveniently adjusted, and then the device can be connected with external related equipment under the action of the first connector, the second connector and an external connecting piece;

(2) when the oil inlet channel and the oil outlet channel are connected with external oil supply equipment by using the connecting sleeve and the external connecting pipeline, the connection between the oil inlet channel and the external connecting pipeline and the connection between the oil outlet channel and the external connecting pipeline can be enhanced by the sealing ring and the convex ring;

(3) the oil can flow into the cylinder body through the oil inlet channel, then the oil flows out through the oil outlet channel, the oil is in a circulating flow state, the first baffle plate is pressed to move rightwards in the oil inlet process, when the oil inlet is stopped, the first baffle plate can move leftwards under the reset action of the compression spring and is tightly attached to the first limiting ring, the second baffle plate is pressed to move leftwards under the reset action of the extension spring and is tightly attached to the second limiting ring in the oil outlet process, the oil is prevented from flowing backwards, and the oil leakage phenomenon can be effectively avoided.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the front view of the present invention;

fig. 3 is a schematic view of the connection structure of the oil inlet channel, the first fixing frame, the compression spring, the first baffle plate and the first limit ring;

FIG. 4 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 5 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.

In the figure: 1. the cylinder body, 2, first connector, 3, fixed column, 4, second connector, 5, oil feed passageway, 6, play oil passageway, 7, first mount, 8, compression spring, 9, first baffle, 10, first spacing ring, 11, second mount, 12, extension spring, 13, second baffle, 14, second spacing ring, 15, connecting sleeve, 16, sealing washer, 17, bulge loop.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a leak protection hydraulic cylinder, as shown in fig. 1 and fig. 2, the bottom of cylinder body 1 is fixed with first connector 2, and the top of cylinder body 1 is connected with second connector 4 through fixed column 3, second connector 4 rotates the top of connecting at fixed column 3, rotatable second connector 4 before installing the device, conveniently adjust the direction of second connector 4, oil feed passageway 5 and oil outlet passage 6 run through respectively and fix the upper and lower both sides at 1 left end face of cylinder body, and oil feed passageway 5 internal fixation has first mount 7, the left side of first mount 7 is connected with first baffle 9 through compression spring 8 simultaneously, oil feed passageway 5 and oil outlet passage 6 symmetry set up, oil accessible oil feed passageway 5 enters into cylinder body 1, oil accessible oil outlet passage 6 flows out, conveniently make oil be in the state of circulation flow.

According to fig. 1, 2 and 3, the first baffle 9 is arranged on the inner side of the first limiting ring 10, the first limiting ring 10 is fixed on the inner side of the oil inlet channel 5, the first baffle 9 penetrates through the first fixing frame 7, the first baffle 9 and the first fixing frame 7 form a telescopic structure through the compression spring 8, meanwhile, the compression spring 8 wraps the outer side of the first baffle 9, in the oil inlet process, the first baffle 9 is forced to move rightwards, when the oil inlet is stopped, the first baffle 9 can move leftwards under the reset action of the compression spring 8 and is tightly attached to the first limiting ring 10, the oil can only not enter the oil inlet channel 5, and the oil leakage phenomenon can be effectively avoided.

According to the drawings of fig. 1, fig. 2 and fig. 4, a second fixing frame 11 is fixed in the oil outlet channel 6, the left side of the second fixing frame 11 is connected with a second baffle plate 13 through an extension spring 12, the second baffle plate 13 penetrates through the second fixing frame 11, the second baffle plate 13 and the second fixing frame 11 form a telescopic structure through the extension spring 12, meanwhile, the extension spring 12 wraps the outer side of the second baffle plate 13, in the oil outlet process, the second baffle plate 13 moves leftwards under pressure, when oil is stopped to be extracted, the second baffle plate 13 can move rightwards under the reset action of the extension spring 12 and is tightly attached to a second limiting ring 14, oil only can not enter the oil outlet channel 6, and the oil leakage phenomenon can be effectively avoided.

According to fig. 1, 2 and 5, the second baffle 13 is arranged on the inner side of the second limiting ring 14, the second limiting ring 14 is fixed on the inner side of the oil outlet channel 6, the left side of the first limiting ring 10 and the left side of the second limiting ring 14 are both fixed with a connecting sleeve 15, the outer side of the connecting sleeve 15 is fixed with a sealing ring 16 and a convex ring 17, the sealing ring 16 is arranged on the left side of the convex ring 17, the convex rings 17 are distributed at equal intervals, and when the oil inlet channel 5 and the oil outlet channel 6 are connected with external oil supply equipment by using the connecting sleeve 15 and the external connecting pipeline, the sealing ring 16 and the convex ring 17 can strengthen the connection between the oil inlet channel 5 and the oil outlet channel 6 and the external connecting pipeline.

The working principle is as follows: when the leakage-proof hydraulic cylinder is used, the second connector 4 is manually rotated until the second connector 4 is in a proper direction, then the device is connected with external related equipment through the first connector 2, the second connector 4 and an external connecting piece, in the process of connecting the oil inlet channel 5 and the oil outlet channel 6 with external oil supply equipment through the connecting sleeve 15 and an external connecting pipeline, the sealing ring 16 and the convex ring 17 can strengthen the connection between the oil inlet channel 5 and the oil outlet channel 6 and the external connecting pipeline, oil can flow out through the oil outlet channel 6 after flowing into the cylinder body 1 through the oil inlet channel 5, the oil is in a circulating flow state, in the process of oil inlet, the first baffle plate 9 is forced to move rightwards under the pressure, when the oil inlet is stopped, the first baffle plate 9 can move leftwards under the reset action of the compression spring 8 and is tightly attached to the first limiting ring 10, the oil can only enter the oil inlet channel 5 but not exit, in the process of oil outlet, the second baffle 13 moves leftwards under the pressure, when the oil outlet is stopped, the second baffle 13 can move rightwards under the reset action of the extension spring 12 and is tightly attached to the second limiting ring 14, the oil can only enter the oil inlet channel 5 but can not exit, and the oil leakage phenomenon can be effectively avoided.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a leak protection hydraulic cylinder, includes cylinder body (1), oil feed passageway (5) and oil outlet channel (6), its characterized in that: the bottom of the cylinder body (1) is fixed with a first connector (2), the top of the cylinder body (1) is connected with a second connector (4) through a fixing column (3), an oil inlet channel (5) and an oil outlet channel (6) are respectively fixed on the upper side and the lower side of the left end face of the cylinder body (1) in a penetrating manner, a first fixing frame (7) is fixed in the oil inlet channel (5), the left side of the first fixing frame (7) is connected with a first baffle (9) through a compression spring (8), the first baffle (9) is arranged on the inner side of a first limiting ring (10), the first limiting ring (10) is fixed on the inner side of the oil inlet channel (5), a second fixing frame (11) is fixed in the oil outlet channel (6), the left side of the second fixing frame (11) is connected with a second baffle (13) through a tension spring (12), the second baffle (13) is arranged on the inner side of a second limiting ring (14), and the second limit ring (14) is fixed on the inner side of the oil outlet channel (6), and the left side of the first limit ring (10) and the left side of the second limit ring (14) are both fixed with a connecting sleeve (15).

2. An anti-leak hydraulic cylinder as defined in claim 1, further comprising: the second connector (4) is rotatably connected to the top of the fixed column (3).

3. An anti-leak hydraulic cylinder as defined in claim 1, further comprising: the oil inlet channel (5) and the oil outlet channel (6) are symmetrically arranged.

4. An anti-leak hydraulic cylinder as defined in claim 1, further comprising: first baffle (9) run through first mount (7), and first baffle (9) constitute extending structure through compression spring (8) and first mount (7), and compression spring (8) parcel is in the outside of first baffle (9) simultaneously.

5. An anti-leak hydraulic cylinder as defined in claim 1, further comprising: the second baffle (13) penetrates through the second fixing frame (11), the second baffle (13) and the second fixing frame (11) form a telescopic structure through an extension spring (12), and meanwhile the extension spring (12) wraps the outer side of the second baffle (13).

6. An anti-leak hydraulic cylinder as defined in claim 1, further comprising: the outer side of the connecting sleeve (15) is fixed with a sealing ring (16) and a convex ring (17), the sealing ring (16) is arranged on the left side of the convex ring (17), and the convex ring (17) is distributed at equal intervals.