Reinforced hydraulic valve assembly

Abstract

The utility model discloses a strengthened hydraulic valve assembly which comprises a hydraulic valve body, the front side of the hydraulic valve body is communicated with a plurality of liquid passing pipes, the front end of each liquid passing pipe is fixedly connected with a filter box, and the front side of each filter box is fixedly connected with a connecting pipe; the multiple filtering mechanisms are installed in the multiple filtering boxes correspondingly, each filtering mechanism comprises a rectangular groove formed in the upper end of the corresponding filtering box, a rectangular-ambulatory-plane frame is inserted into each rectangular groove, and a filtering net capable of sliding front and back is arranged in each rectangular-ambulatory-plane frame; and the multiple alarm mechanisms are matched with the multiple filtering mechanisms correspondingly, and each alarm mechanism comprises a mounting plate fixedly connected between the inner walls of the left side and the right side of the concentric-square-shaped frame. Compared with the prior art, when the filter screen of the hydraulic valve assembly is used, whether the filter screen is blocked or not can be visually judged, and the situation that the whole hydraulic system is affected due to the fact that the filter screen is blocked is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valves, in particular to a reinforced hydraulic valve component. Background Art

[0002] Pressure valves are important control components in hydraulic systems. According to their functions, hydraulic valves can be divided into flow valves, such as throttle valves, speed control valves, and flow divider and collector valves; pressure valves, such as relief valves, pressure reducing valves, sequence valves, and unloading valves; directional valves, such as solenoid reversing valves, manual reversing valves, check valves, and hydraulically controlled check valves. Among hydraulic valves, reversing valves are used most frequently. Common types of reversing valves include two-position two-way reversing valves, two-position three-way reversing valves, two-position four-way reversing valves, and three-position four-way reversing valves.

[0003] In order to strengthen the valve body, the reversing valves currently on the market are equipped with a filter assembly to intercept impurities in the liquid medium and increase the service life of the hydraulic valve. However, the existing filter assembly is generally just a filter net, and the user cannot judge the filtering status of the filter net part. If the filter net is severely clogged and has not been cleaned, it is easy to cause greater oil circuit resistance and affect the overall hydraulic system. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a reinforced hydraulic valve assembly. Compared with the prior art, the filter of the hydraulic valve assembly can be intuitively judged whether it is blocked when in use, thereby avoiding the situation where the filter is blocked and affecting the overall hydraulic system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A reinforced hydraulic valve assembly comprises a hydraulic valve body, the front side of the hydraulic valve body is connected to a plurality of liquid passing pipes, the front end of each of the liquid passing pipes is fixedly connected to a filter box, and the front side of each of the filter boxes is fixedly connected to a connecting pipe; a plurality of filter mechanisms, the plurality of filter mechanisms are respectively installed in a plurality of filter boxes, the filter mechanisms comprise a rectangular groove opened at the upper end of the filter box, a circular frame is inserted in the rectangular groove, and a filter screen that can slide back and forth is provided in the circular frame; a plurality of alarm mechanisms, the plurality of alarm mechanisms respectively cooperate with the plurality of filter mechanisms.

[0007] Preferably, the alarm mechanism comprises a mounting plate fixedly connected between the inner walls on the left and right sides of the circular frame, and the front side of the mounting plate is elastically connected to the rear side of the filter screen through a plurality of first springs.

[0008] Preferably, a push rod is fixedly connected to the rear side of each filter screen, a non-self-locking switch is installed on the inner wall of the rear side of each filter box, and an alarm is installed on the upper end of each filter box.

[0009] Preferably, each of the alarms is electrically connected to a corresponding non-self-locking switch.

[0010] Preferably, the upper end of each filter box is fixedly connected to a fixing plate, each fixing plate is provided with an insertion rod penetrating in the front-to-back direction, the front side of each insertion rod is fixedly connected to a pull plate, and the rear side of each pull plate is elastically connected to the fixing plate via a second spring.

[0011] Preferably, the upper end of each circular frame is fixedly connected to a vertical plate, and each insertion rod passes through the corresponding vertical plate and is slidably connected to the corresponding vertical plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] A filter is provided, through which impurities in the oil are filtered out, so as to strengthen the hydraulic valve and increase the service life of the hydraulic valve. By using the alarm, it is possible to visually determine whether the filter is blocked, which can effectively avoid the situation where the filter is blocked and seriously affects the hydraulic system. In addition, the operation of replacing the filter is also relatively simple, which is convenient for users to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of an enhanced hydraulic valve assembly proposed by the utility model;

[0015] Figure 2 This is a connection diagram of one of the liquid-passing pipes, the filter box and the connecting pipe;

[0016] Figure 3 A cross-sectional view of one of the filter boxes.

[0017] In the figure: 1 hydraulic valve body, 2 liquid pipe, 3 filter box, 4 connecting pipe, 5 alarm, 6 rectangular groove, 7 vertical plate, 8 plug rod, 9 round frame, 10 filter screen, 11 mounting plate, 12 first spring, 13 non-self-locking switch, 14 moving rod, 15 fixing plate, 16 pull plate, 17 second spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-3A reinforced hydraulic valve assembly includes a hydraulic valve body 1, a plurality of liquid-passing pipes 2 are connected to the front side of the hydraulic valve body 1, a filter box 3 is fixedly connected to the front end of each liquid-passing pipe 2, a connecting pipe 4 is fixedly connected to the front side of each filter box 3, and both the liquid-passing pipe 2 and the connecting pipe 4 are connected to the corresponding filter box 3;

[0020] The filter box 3 further comprises a plurality of filter mechanisms, which are respectively installed in the plurality of filter boxes 3. The filter mechanism comprises a rectangular groove 6 provided at the upper end of the filter box 3. In order to improve the sealing effect, an annular sealing gasket is provided on the inner wall of the rectangular groove 6. A circular frame 9 is inserted in the rectangular groove 6. A filter screen 10 that can slide forward and backward is provided in the circular frame 9.

[0021] Among them, it also includes multiple alarm mechanisms, which are respectively matched with multiple filtering mechanisms. The alarm mechanism includes a mounting plate 11 fixedly connected between the inner walls on the left and right sides of the circular frame 9. The front side of the mounting plate 11 is elastically connected to the rear side of the filter screen 10 through multiple first springs 12. The rear side of each filter screen 10 is fixedly connected with a moving rod 14. A non-self-locking switch 13 is installed on the inner wall of the rear side of each filter box 3. An alarm 5 is installed on the upper end of each filter box 3. Each alarm 5 is electrically connected to the corresponding non-self-locking switch 13;

[0022] Among them, the upper end of each filter box 3 is fixedly connected to a fixing plate 15, each fixing plate 15 is penetrated by an insertion rod 8 in the front-to-back direction, the front side of each insertion rod 8 is fixedly connected to a pull plate 16, the rear side of each pull plate 16 is elastically connected to the fixing plate 15 through a second spring 17, the upper end of each circular frame 9 is fixedly connected to a vertical plate 7, each insertion rod 8 penetrates the corresponding vertical plate 7, and is slidably connected to the corresponding vertical plate 7.

[0023] When the filter 10 is in use, the impurities in the oil circuit will be filtered by the filter 10, and the filter 10 will be blocked slowly. As the blockage of the filter 10 becomes more and more serious, the oil resistance it encounters when passing through the oil will become larger, so that the filter 10 will continue to move backwards. When the filter 10 moves backwards to the point where the abutting rod 14 contacts the non-self-locking switch 13, the alarm 5 will sound an alarm, which means that the filter 10 is seriously blocked. The user will close the oil circuit at this time, and then pull the pull plate 16 forward to drive the insertion rod 8 to leave the vertical plate 7. At this time, pulling the vertical plate 7 can drive the circular frame 9 to move up, take out the filter 10, align it and clean it. During installation, pull the pull plate 16 forward, put down the circular frame 9, release the pull plate 16, and under the elastic action of the second spring 17, the insertion rod 8 is inserted into the vertical plate 7 again to complete the limit.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A reinforced hydraulic valve assembly, characterized in that: include: A hydraulic valve body (1), wherein the front side of the hydraulic valve body (1) is connected to a plurality of liquid passages (2), the front end of each of the liquid passages (2) is fixedly connected to a filter box (3), and the front side of each of the filter boxes (3) is fixedly connected to a connecting pipe (4); A plurality of filter mechanisms, each of which is installed in a plurality of filter boxes (3), wherein the filter mechanism comprises a rectangular groove (6) provided at the upper end of the filter box (3), a circular frame (9) being inserted in the rectangular groove (6), and a filter screen (10) which can slide forward and backward is provided in the circular frame (9); Multiple alarm mechanisms, each of which cooperates with multiple filtering mechanisms.

2. The enhanced hydraulic valve assembly according to claim 1, characterized in that: The alarm mechanism comprises a mounting plate (11) fixedly connected between the inner walls on the left and right sides of the circular frame (9), and the front side of the mounting plate (11) is elastically connected to the rear side of the filter screen (10) via a plurality of first springs (12).

3. The enhanced hydraulic valve assembly according to claim 2, characterized in that: The rear side of each filter screen (10) is fixedly connected to a push rod (14), the rear inner wall of each filter box (3) is equipped with a non-self-locking switch (13), and the upper end of each filter box (3) is equipped with an alarm (5).

4. The enhanced hydraulic valve assembly according to claim 3, characterized in that: Each of the alarms (5) is electrically connected to a corresponding non-self-locking switch (13).

5. The enhanced hydraulic valve assembly according to claim 1, characterized in that: The upper end of each filter box (3) is fixedly connected to a fixing plate (15), each fixing plate (15) is provided with an insertion rod (8) penetrating in the front-to-back direction, the front side of each insertion rod (8) is fixedly connected to a pull plate (16), and the rear side of each pull plate (16) is elastically connected to the fixing plate (15) via a second spring (17).

6. The enhanced hydraulic valve assembly according to claim 5, characterized in that: The upper end of each circular frame (9) is fixedly connected to a vertical plate (7), and each insertion rod (8) penetrates the corresponding vertical plate (7) and is slidably connected to the corresponding vertical plate (7).

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