CN217041471U

CN217041471U - Back flush filter for hydraulic support

Info

Publication number: CN217041471U
Application number: CN202220434591.3U
Authority: CN
Inventors: 胡亦兵; 张宇; 李宁; 宋海洋; 芦辰; 郑海涛; 王慧军; 史军伟
Original assignee: Pingdingshan Chuang Coal Machinery Manufacturing Co ltd
Current assignee: Pingdingshan Chuang Coal Machinery Manufacturing Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-07-26
Anticipated expiration: 2032-03-02

Abstract

The utility model discloses a backwash filter for hydraulic support, which comprises a sleeve, wherein the top and the bottom of the sleeve are respectively provided with a top cover and a bottom cover, the middle parts of the top cover and the bottom cover are respectively provided with a liquid inlet and a liquid outlet, one side of the liquid inlet and the liquid outlet is respectively provided with an inner cavity, the outer wall of a first rotating shaft is provided with a first sealing plate, one side of the bottom of the first conical gear is engaged with a second conical gear, the backwash filter for the hydraulic support can lead the first sealing plate to simultaneously block the liquid inlet and the liquid outlet by rotating a handle, simultaneously lead the second sealing plate to be separated from a rectangular channel, lead the rectangular channel to be opened, lead the outside water to enter the sleeve through a water injection pipe, lead the impurities on a filter screen to be flushed and discharged through a drain pipe, avoid the disassembly of the filter from the hydraulic support and the integral disassembly and cleaning of the filter, thereby facilitating the cleaning of impurities inside the filter.

Description

Back flush filter for hydraulic support

Technical Field

The utility model relates to a hydraulic support technical field specifically is a back flush filter for hydraulic support.

Background

The working medium of the mining hydraulic support is emulsion, the cleanliness of the emulsion has great influence on the service life of each hydraulic cylinder of the hydraulic support, each valve bank and the whole hydraulic system of the support, impurities in the emulsion can cause the hydraulic support to be inflexible to operate, out of control and even damaged, so a filter needs to be installed on the hydraulic support, however, after a filter screen in the existing filter is used for a long time, the filter is easy to block, the filter needs to be detached from the hydraulic support and integrally detached to be cleaned, and time and labor are wasted.

In order to solve the problems, innovative design is urgently needed on the basis of the original filter.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a back flush filter for hydraulic support to solve the problem that above-mentioned background art provided.

In order to achieve the above object, the utility model provides a following technical scheme: a back-washing filter for a hydraulic support comprises a sleeve, wherein a top cover and a bottom cover are respectively installed at the top and the bottom of the sleeve, a liquid inlet and a liquid outlet are respectively formed in the middle of the top cover and the bottom cover, an inner cavity is formed in one side of the liquid inlet and the liquid outlet, a first rotating shaft is installed inside the inner cavity, a first sealing plate is installed on the outer wall of the first rotating shaft, a first bevel gear is fixed on the outer wall of the first rotating shaft, a second bevel gear is meshed with one side of the bottom of the first bevel gear, a second rotating shaft is fixed at the bottom of the second bevel gear, a rectangular channel is formed in one side of the liquid inlet and one side of the liquid outlet, a groove is reserved at the bottom of the rectangular channel, a second sealing plate is arranged inside the groove, the inner wall of the second sealing plate is connected with the outer wall of the second rotating shaft, and a handle is fixed at the end part of the first rotating shaft, the handle is located the outside of top cap and bottom, the outer wall of top cap is provided with the drain pipe, the outer wall of bottom is provided with the water injection pipe.

Preferably, a filter screen is installed inside the sleeve.

Preferably, the outer wall of the first sealing plate is attached to the inner wall of the inner cavity, and the inner cavity and the first sealing plate form a clamping type sliding structure.

Preferably, the inner wall of the first sealing plate and the outer wall of the first rotating shaft are both provided with threads, and the first rotating shaft is in threaded connection with the first sealing plate.

Preferably, the inner wall of the groove and the outer wall of the second sealing plate are attached to each other, and the groove and the second sealing plate form a clamping type sliding structure.

Preferably, the inner wall of the second sealing plate and the outer wall of the second rotating shaft are both provided with threads, and the second rotating shaft is in threaded connection with the second sealing plate.

Compared with the prior art, the beneficial effects of the utility model are that: this back flush filter for hydraulic support, through rotatory handle, can make first closing plate plug up inlet and liquid outlet simultaneously, second closing plate and rectangle passageway separation simultaneously for the rectangle passageway is opened, makes external water can enter into telescopic inside through the water injection pipe, thereby makes the impurity on the filter screen wash the discharge through the drain pipe, has avoided dismantling the filter from hydraulic support and has wholly dismantled the clearance with the filter, thereby has made things convenient for the clearance of the inside impurity of filter.

Drawings

FIG. 1 is a schematic view of the open front structure of the liquid inlet and the liquid outlet of the present invention;

FIG. 2 is a schematic view of the liquid inlet and outlet of the present invention in a closed front view;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 4 is an enlarged schematic view of the structure of the utility model at B in FIG. 2;

fig. 5 is a schematic view of the liquid inlet of the present invention.

In the figure: 1. a sleeve; 2. a top cover; 3. a bottom cover; 4. a liquid inlet; 5. a liquid outlet; 6. an inner cavity; 7. a first rotating shaft; 8. a first sealing plate; 9. a first bevel gear; 10. a second bevel gear; 11. a second rotating shaft; 12. a rectangular channel; 13. a groove; 14. a second sealing plate; 15. a handle; 16. a drain pipe; 17. a water injection pipe; 18. and (5) a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a back-washing filter for a hydraulic support comprises a sleeve 1, a top cover 2 and a bottom cover 3 are respectively installed at the top and the bottom of the sleeve 1, a liquid inlet 4 and a liquid outlet 5 are respectively formed in the middle of the top cover 2 and the bottom cover 3, an inner cavity 6 is formed in one side of the liquid inlet 4 and one side of the liquid outlet 5, a first rotating shaft 7 is installed inside the inner cavity 6, a first sealing plate 8 is installed on the outer wall of the first rotating shaft 7, a first conical gear 9 is fixed on the outer wall of the first rotating shaft 7, a second conical gear 10 is meshed with one side of the bottom of the first conical gear 9, a second rotating shaft 11 is fixed at the bottom of the second conical gear 10, a rectangular channel 12 is formed in one side of the liquid inlet 4 and one side of the liquid outlet 5, a groove 13 is reserved at the bottom of the rectangular channel 12, a second sealing plate 14 is arranged inside the groove 13, and the inner wall of the second sealing plate 14 is connected with the outer wall of the second rotating shaft 11, a handle 15 is fixed at the end of the first rotating shaft 7, the handle 15 is positioned outside the top cover 2 and the bottom cover 3, a drain pipe 16 is arranged on the outer wall of the top cover 2, and a water injection pipe 17 is arranged on the outer wall of the bottom cover 3.

The filter screen 18 is arranged in the sleeve 1, so that the filter screen 18 can filter the emulsion in the hydraulic support, and the cleanness of the emulsion is guaranteed.

The outer wall of first closing plate 8 and the inner wall of inner chamber 6 laminate each other, inner chamber 6 constitutes the sliding structure of block with first closing plate 8, the inner wall of first closing plate 8 and the outer wall of first pivot 7 all are provided with the screw thread, first pivot 7 is threaded connection with first closing plate 8, when having guaranteed first pivot 7 corotation or reversal, first closing plate 8 can be done and moved left or right to the completion is to the opening and close of inlet 4 and liquid outlet 5.

The inner wall of the groove 13 and the outer wall of the second sealing plate 14 are attached to each other, the groove 13 and the second sealing plate 14 form a clamping type sliding structure, the inner wall of the second sealing plate 14 and the outer wall of the second rotating shaft 11 are provided with threads, the second rotating shaft 11 and the second sealing plate 14 are in threaded connection, and it is guaranteed that the second sealing plate 14 can move upwards or downwards when the second rotating shaft 11 rotates forwards or backwards, so that opening and closing of the rectangular channel 12 are completed.

The working principle is as follows: when the backwashing filter for the hydraulic support is used, firstly, emulsion enters the interior of the sleeve 1 through the liquid inlet 4, so that impurities in the emulsion are filtered by the filter screen 18, then the filtered emulsion is discharged from the liquid outlet 5, when the top of the filter screen 18 contains excessive impurities and needs to be cleaned, the handles 15 on the top cover 2 and the bottom cover 3 are simultaneously rotated, then the handles 15 drive the first rotating shaft 7 to rotate, because the first rotating shaft 7 is in threaded connection with the first sealing plate 8 and the inner cavity 6 and the first sealing plate 8 form a clamping type sliding structure, the first sealing plate 8 moves towards the left side, so that the liquid inlet 4 and the liquid outlet 5 are blocked, meanwhile, the first rotating shaft 7 drives the second rotating shaft 11 to rotate through the first conical gear 9 and the second conical gear 10, because the second rotating shaft 11 is in threaded connection with the second sealing plate 14, and the groove 13 and the second sealing plate 14 form a clamping type sliding structure, therefore, the second sealing plate 14 moves downwards, so that the rectangular channels 12 on the top cover 2 and the bottom cover 3 are opened, then the water injection pipe 17 is connected with an external water pipe, so that external water enters the rectangular channel 12 on the bottom cover 3 through the water injection pipe 17, then enters the sleeve 1, then impurities at the top of the filter screen 18 are discharged from the rectangular channel 12 on the top cover 2 and the drain pipe 16, so that the impurities are washed back, the filter is prevented from being detached from the hydraulic support and detached from the whole filter, and the impurities on the filter screen 18 are cleaned conveniently.

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 backwash filter for hydraulic support, includes sleeve (1), its characterized in that: a top cover (2) and a bottom cover (3) are respectively installed at the top and the bottom of the sleeve (1), a liquid inlet (4) and a liquid outlet (5) are respectively formed in the middle of the top cover (2) and the middle of the bottom cover (3), an inner cavity (6) is formed in one side of the liquid inlet (4) and one side of the liquid outlet (5), a first rotating shaft (7) is installed inside the inner cavity (6), a first sealing plate (8) is installed on the outer wall of the first rotating shaft (7), a first bevel gear (9) is fixed on the outer wall of the first rotating shaft (7), a second bevel gear (10) is meshed with one side of the bottom of the first bevel gear (9), a second rotating shaft (11) is fixed at the bottom of the second bevel gear (10), a rectangular channel (12) is formed in one side of the liquid inlet (4) and the liquid outlet (5), and a groove (13) is reserved in the bottom of the rectangular channel (12), the inside of recess (13) is provided with second closing plate (14), the inner wall of second closing plate (14) and the outer wall interconnect of second pivot (11), the end fixing of first pivot (7) has handle (15), handle (15) are located the outside of top cap (2) and bottom (3), the outer wall of top cap (2) is provided with drain pipe (16), the outer wall of bottom (3) is provided with water injection pipe (17).

2. The backwash filter for a hydraulic support as set forth in claim 1, wherein: a filter screen (18) is arranged in the sleeve (1).

3. The backwash filter for a hydraulic support as set forth in claim 1, wherein: the outer wall of the first sealing plate (8) is attached to the inner wall of the inner cavity (6), and the inner cavity (6) and the first sealing plate (8) form a clamping type sliding structure.

4. The backwash filter for a hydraulic support as set forth in claim 1, wherein: the inner wall of the first sealing plate (8) and the outer wall of the first rotating shaft (7) are both provided with threads, and the first rotating shaft (7) is in threaded connection with the first sealing plate (8).

5. The backwash filter for a hydraulic support as set forth in claim 1, wherein: the inner wall of the groove (13) is attached to the outer wall of the second sealing plate (14), and the groove (13) and the second sealing plate (14) form a clamping type sliding structure.

6. The backwash filter for a hydraulic support as set forth in claim 1, wherein: the inner wall of the second sealing plate (14) and the outer wall of the second rotating shaft (11) are both provided with threads, and the second rotating shaft (11) is in threaded connection with the second sealing plate (14).