CN217539171U

CN217539171U - Hydraulic cylinder with prevent leaking function

Info

Publication number: CN217539171U
Application number: CN202220909661.6U
Authority: CN
Inventors: 毛杰
Original assignee: Changzhou Qiaotelai Heavy Hydraulic Cylinders Co ltd
Current assignee: Changzhou Qiaotelai Heavy Hydraulic Cylinders Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-10-04
Anticipated expiration: 2032-04-20

Abstract

The utility model discloses a hydraulic cylinder with prevent leaking function relates to leak protection hydraulic cylinder equipment technical field, and inside current hydraulic oil flowed into the pneumatic cylinder through advancing oil pipe, but the foreign matter in the hydraulic oil plugged up into oil pipe, caused the condition that the jam takes place hydraulic oil to reveal easily, including cylinder body, connecting cover is located the one end fixed mounting of cylinder body, and the fixed collar that is provided with of one end of connecting cover, the both ends of cylinder body are fixed respectively and are provided with back oil pipe and advance oil pipe, and the locking end cover is established to another pot head of cylinder body, and the piston rod is installed to the one end plug-in type of cylinder body, and the one end of piston rod is provided with the link, through the sealed tube that sets up, locking end cover, through the inside and outside sealing washer that sets up of sealed tube when using, guarantees the piston rod and the leakproofness of cylinder body when doing reciprocating motion, avoids hydraulic oil to reveal, and the leakproofness of the sealed tube is strengthened to the locking end cover cooperation fastening bolt that sets up simultaneously avoids revealing.

Description

Hydraulic cylinder with prevent leaking function

Technical Field

The utility model relates to a leak protection hydraulic cylinder equipment technical field specifically is a hydraulic cylinder with prevent leaking the function.

Background

The hydraulic oil cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion. It has simple structure and reliable operation. When the reciprocating motion is realized by using the hydraulic cylinder, a speed reducer can be omitted, the hydraulic cylinder without a transmission clearance is an actuating element in a hydraulic transmission system, the hydraulic cylinder is a conversion device for converting hydraulic energy into mechanical energy, the hydraulic cylinder realizes the reciprocating motion, the structural form of the hydraulic cylinder comprises three types, namely a piston cylinder, a plunger cylinder and a swinging cylinder, the piston cylinder and the plunger cylinder realize the reciprocating linear motion, the speed and the thrust are output, and the swinging cylinder realizes the reciprocating swinging.

Inside current hydraulic oil flowed into the pneumatic cylinder through advancing oil pipe, but the oil inlet pipe was plugged up to the foreign matter in the hydraulic oil, caused the condition that the jam takes place hydraulic oil and reveal easily.

Accordingly, a hydraulic cylinder having a leakage prevention function is provided by those skilled in the art to solve the problems of the background art described above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydraulic cylinder with prevent leaking function to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a hydraulic cylinder with prevent leaking function, includes cylinder body, connection lid, connects the one end fixed mounting that the lid is located the cylinder body, connects the fixed collar that is provided with in one end of lid, the both ends of cylinder body are fixed respectively and are provided with back oil pipe and advance oil pipe, and the locking end cover is established to the other pot head of cylinder body, and the piston rod is installed to the one end plug-in type of cylinder body, and the one end of piston rod is provided with the link.

As the utility model discloses further scheme again, the one end that advances oil pipe has the filter tube through threaded connection, and the filter screen is installed in the inside embedding of one end of filter tube, and the step groove has been seted up to the other end inner wall of filter tube, and the filter seal circle is installed in the embedding of step groove.

As the utility model discloses further scheme again, the sealed tube is installed in the inside embedding of one end of cylinder body, and the outside setting at the piston rod is established to the sealed tube cover.

As the utility model discloses scheme further again, the inner seal circle is installed in the equal embedding in inner wall both ends of sealed tube, and the setting is hugged closely mutually with the piston rod to the inner seal circle, and the external seal circle is installed in the outer wall embedding of sealed tube, and the setting is hugged closely with the inner wall of cylinder body to the external seal circle.

As the utility model discloses scheme further again, the diameter of locking end cover is greater than the diameter of cylinder body to the one end at the cylinder body is established to the wholely cover, and the one end outer wall edge of locking end cover is provided with fastening bolt, and fastening bolt runs through the locking end cover and extends to inside the cylinder body.

As the utility model discloses further scheme again, the one end diameter of advancing oil pipe is less than the filter tube diameter, the diameter of locking end cover one end is less than the diameter of sealed tube.

As the utility model discloses further scheme again, the one end of link is provided with the thread end, and the link passes through thread fixed connection through thread end and piston rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the sealed tube that sets up, locking end cover, through the inside seal circle and the outer seal circle that the sealed tube inside and outside set up when using, guarantee the piston rod when doing reciprocating motion and the leakproofness of cylinder body, avoid hydraulic oil to reveal, the leakproofness of the sealed tube is consolidated to the locking end cover cooperation fastening bolt that sets up simultaneously, avoids hydraulic oil to reveal.

2. Through the filter tube that sets up, at first connect the filter tube through the outside setting during use, will filter the union coupling again and advance the one end of oil pipe, inside hydraulic oil got into the cylinder body after the filter screen filters, avoided hydraulic oil to cause hydraulic oil to reveal because of foreign matter blocks up inside the cylinder body, the leakproofness of filter tube and oil pipe connection is guaranteed to the filtration sealing washer of setting.

Drawings

FIG. 1 is a schematic structural diagram of a hydraulic cylinder with leakage prevention function;

FIG. 2 is a schematic diagram of a hydraulic cylinder with leak-proof function;

fig. 3 is an enlarged view of a hydraulic cylinder having a leakage preventing function at a position.

In the figure: 1. a cylinder body; 101. a connecting cover; 102. a mounting ring; 103. an oil return pipe; 104. locking the end cover; 105. a piston rod; 106. a connecting end; 107. a filter tube; 108. an oil inlet pipe; 2. a sealing tube; 201. an inner seal ring; 202. filtering the sealing ring; 203. an outer sealing ring; 204. fastening a bolt; 205. a threaded end; 206. a filter screen; 207. a step groove.

Detailed Description

Please refer to fig. 1-3, in the embodiment of the utility model, a hydraulic cylinder with prevent leaking function, including cylinder body 1, connect lid 101, it is located the one end fixed mounting of cylinder body 1 to connect lid 101, the fixed collar 102 that is provided with of one end of connecting lid 101, the both ends of cylinder body 1 are fixed respectively and are provided with oil return pipe 103 and advance oil pipe 108, another pot head of cylinder body 1 is established and is installed locking end cover 104, piston rod 105 is installed to the one end plug-in type of cylinder body 1, the one end of piston rod 105 is provided with link 106, seal tube 2 is installed in the inside embedding of one end of cylinder body 1, seal tube 2 overlaps and establishes the outside setting at piston rod 105, the one end of link 106 is provided with threaded end 205, link 106 passes through threaded end 205 and piston rod 105 passes through thread fixed connection.

As shown in fig. 1, 2, and 3, one end of the oil inlet pipe 108 is connected to the filter pipe 107 through a thread, a filter screen 206 is embedded in one end of the filter pipe 107 to filter hydraulic oil input into the cylinder 1, so as to avoid internal blockage of the cylinder 1 due to foreign matters in the hydraulic oil, a stepped groove 207 is formed in the inner wall of the other end of the filter pipe 107, and a filter seal ring 202 is embedded in the stepped groove 207 to ensure the sealing property between the filter pipe 107 and the oil inlet pipe 108.

As shown in fig. 1, 2 and 3, inner sealing rings 201 are embedded and mounted at two ends of the inner wall of the sealing tube 2, the inner sealing rings 201 are closely attached to the piston rod 105, outer sealing rings 203 are embedded and mounted on the outer wall of the sealing tube 2, the outer sealing rings 203 are closely attached to the inner wall of the cylinder body 1, and the sealing performance between the piston rod 105 and the cylinder body 1 is improved.

As shown in fig. 1, 2, and 3, the diameter of the locking end cover 104 is greater than the diameter of the cylinder body 1, and the locking end cover is integrally sleeved at one end of the cylinder body 1, a fastening bolt 204 is disposed at an edge of an outer wall of one end of the locking end cover 104, and the fastening bolt 204 penetrates through the locking end cover 104 and extends into the cylinder body 1, so as to further increase the sealing performance between the sealing pipe 2 and the cylinder body 1.

As shown in fig. 1, 2 and 3, the diameter of one end of the oil inlet pipe 108 is smaller than that of the filter pipe 107, the diameter of one end of the locking end cover 104 is smaller than that of the sealing pipe 2, so that the plugging arrangement is convenient,

the utility model discloses a theory of operation is: advance the outside oil feeding equipment of oil pipe 108 during the use, at first connect filter tube 107 when the oil feeding, filter hydraulic oil through filter screen 206 of filter tube 107 inside, avoid hydraulic oil because of foreign matter blocks up inside cylinder body 1, cause hydraulic oil to reveal, the leakproofness that filter tube 107 and oil pipe 108 are connected is guaranteed to the filter sealing washer 202 that sets up, through inside and outside sealing washer 201 and the outer sealing washer 203 that sets up of sealed tube 2 when using, guarantee piston rod 105 when doing reciprocating motion and the leakproofness of cylinder body 1, avoid hydraulic oil to reveal.

The above-mentioned, only be the embodiment of the preferred of the present invention, nevertheless the utility model discloses a protection scope is not limited to this, and any technical personnel familiar with this technical field is in the technical scope of the utility model discloses an according to the utility model discloses a technical scheme and utility model design in addition the replacement of equality or change, all should be covered within the protection scope of the utility model.

Claims

1. The utility model provides a hydraulic cylinder with prevent leaking function, includes cylinder body (1), connects lid (101), connects the one end fixed mounting that lid (101) are located cylinder body (1), connects the one end fixed mounting ring (102), its characterized in that of lid (101): the oil return pipe (103) and the oil inlet pipe (108) are fixedly arranged at two ends of the cylinder body (1) respectively, the locking end cover (104) is sleeved at the other end of the cylinder body (1), the piston rod (105) is installed at one end of the cylinder body (1) in a plug-in mode, and the connecting end (106) is arranged at one end of the piston rod (105).

2. The hydraulic oil cylinder with the leakage-proof function according to claim 1, wherein one end of the oil inlet pipe (108) is connected with a filter pipe (107) through a thread, a filter screen (206) is embedded in one end of the filter pipe (107), a stepped groove (207) is formed in the inner wall of the other end of the filter pipe (107), and a filter sealing ring (202) is embedded in the stepped groove (207).

3. The hydraulic oil cylinder with the leakage-proof function according to claim 1, wherein a sealing tube (2) is embedded in one end of the cylinder body (1), and the sealing tube (2) is sleeved outside the piston rod (105).

4. A hydraulic oil cylinder with a leakage prevention function according to claim 3, characterized in that both ends of the inner wall of the sealing tube (2) are embedded with inner sealing rings (201), the inner sealing rings (201) and the piston rod (105) are arranged in a mutual close fit manner, the outer wall of the sealing tube (2) is embedded with outer sealing rings (203), and the outer sealing rings (203) are arranged in a close fit manner with the inner wall of the cylinder body (1).

5. The hydraulic oil cylinder with the leakage-proof function according to claim 1, wherein the diameter of the locking end cover (104) is larger than that of the cylinder body (1), the locking end cover is integrally sleeved at one end of the cylinder body (1), a fastening bolt (204) is arranged at the edge of the outer wall at one end of the locking end cover (104), and the fastening bolt (204) penetrates through the locking end cover (104) and extends into the cylinder body (1).

6. A hydraulic cylinder with leakage prevention function according to claim 2, characterized in that the diameter of one end of the oil inlet pipe (108) is smaller than that of the filter pipe (107), and the diameter of one end of the locking end cover (104) is smaller than that of the seal pipe (2).

7. Hydraulic ram having leakage prevention function according to claim 1, characterised in that one end of the connection end (106) is provided with a threaded end (205), and the connection end (106) is fixedly connected with the piston rod (105) through the thread end (205).