Stand column hydraulic control reversing valve

Abstract

The utility model belongs to the technical field of valves, and discloses a stand column hydraulic control reversing valve which comprises a valve body, a liquid inlet is formed in one side of the bottom of the valve body, a plurality of installation grooves are formed in the top of the valve body, a valve element body is arranged in the installation grooves, a working opening is formed in the bottom of the valve body, and the valve element body is arranged in the working opening. According to the utility model, the downward pressing assembly structure is arranged, and the screw rod is screwed, so that the screw rod drives the pressing plate to move upwards through the connecting block and the annular plate, the pressing block on one side of the bottom of the pressing plate is separated from the inserting groove, the pressing plate is pressed, and the pressing plate is pressed; and then the valve element body is pulled upwards, so that the valve element body is rapidly taken out, the overhauling efficiency of the valve element body is greatly improved, use of operators is facilitated, and the practicability of the reversing valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field, concretely relates to a stand column liquid control reversing valve. BACKGROUND

[0002] The liquid control reversing valve is a valve that can make fluid reverse flow by controlling fluid pressure. The valve plays an important role in the hydraulic support equipment of coal mine machinery.

[0003] At present, the valve core in the stand column liquid control reversing valve needs to be regularly maintained and repaired when it is used for a long time. However, the existing stand column liquid control reversing valve cannot quickly take out the valve core, which greatly reduces the maintenance efficiency of the valve core and is not conducive to the use of the operator, thereby reducing the practicability of the reversing valve. In addition, the liquid inside the stand column liquid control reversing valve is easy to be mixed with impurities when it is used, and the existing reversing valve cannot quickly screen out the solid impurities in the working liquid, which causes the valve body to be easily worn and greatly reduces the service life of the valve body, which is not conducive to the normal use of the reversing valve. SUMMARY

[0004] The utility model aims at providing a stand column liquid control reversing valve to solve the problems that the existing stand column liquid control reversing valve cannot quickly take out the valve core and cannot quickly screen out the solid impurities in the liquid.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a stand column liquid control reversing valve, comprising: a valve body, a liquid inlet is arranged on one side of the bottom of the valve body, a plurality of mounting grooves are formed in the top of the valve body, a valve core body is arranged in the mounting groove, a working port is arranged on the bottom of the valve body, a pressure liquid return port is arranged on one side of the valve body, the liquid inlet, the working port and the pressure liquid return port are mutually penetrated with the mounting groove, and a top plate is connected to the top of each valve core body.

[0006] Preferably, a filter assembly is arranged in the liquid inlet, the filter assembly comprises a connecting frame, the connecting frame is connected to the inner wall around the liquid inlet, a filter screen is arranged between the inner wall around the connecting frame, and an inclined surface is arranged on the inner wall around the connecting frame.

[0007] Preferably, two positioning grooves are symmetrically formed in the inner wall of the mounting groove, and two positioning blocks matched with the positioning grooves are connected to the outer wall of the valve core body.

[0008] Preferably, the outer wall of the valve core body is provided with a groove, and the valve core body is sleeved with a sealing ring through the groove.

[0009] Preferably, the top end of the plurality of screw rods is connected with a torsion plate.

[0010] Preferably, the inside of the insertion slot is provided with a rubber pad.

[0011] Preferably, the outer wall of the connecting block is connected with an annular block, and the inner wall of the annular plate is provided with an annular groove matched with the annular block.

[0012] Preferably, one side of the connecting frame is connected with two connecting plates, and the connecting plates are connected with the inner wall of the liquid inlet through bolts.

[0013] Preferably, a plurality of arc grooves are uniformly arranged at the edge of the torsion plate.

[0014] Preferably, the filter screen is connected with a fixing block in the middle, and the bottom of the fixing block is connected with a pull rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) the utility model discloses a valve core body quick taking-out device, which comprises a valve core body, a connecting block, an annular plate, a connecting frame, a filter assembly and a lower pressing assembly.

[0017] (2) the utility model discloses a valve core body quick taking-out device, which comprises a valve core body, a connecting block, an annular plate, a connecting frame, a filter assembly and a lower pressing assembly. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram of the utility model;

[0019] Figure 2 It is the A place enlarged view of Figure 1

[0020] Figure 3 It is the top view of the utility model;​

[0021] Figure 4 For Figure 1 the enlarged view of B;

[0022] In the figure: 1, valve body; 2, pressure liquid return port; 3, liquid inlet; 4, working port; 5, mounting groove; 6, valve core body; 7, top plate; 8, screw rod; 9, connecting block; 10, annular plate; 11, pressing plate; 12, pressing block; 13, insertion slot; 14, positioning groove; 15, positioning block; 16, torsion plate; 17, arc slot; 18, groove; 19, sealing ring; 20, annular groove; 21, annular block; 22, connecting frame; 23, filter screen; 24, connecting plate; 25, bolt; 26, inclined surface; 27, rubber pad; 28, fixing block; 29, pull rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Referring to Figures 1-4 The utility model provides the following technical scheme: a kind of column hydraulic control reversing valve, comprising: valve body 1, the bottom side of valve body 1 is provided with liquid inlet 3, and the top of valve body 1 is provided with multiple mounting grooves 5, the inside of mounting groove 5 is provided with valve core body 6, the bottom of valve body 1 is provided with working port 4, and the side of valve body 1 is provided with pressure liquid return port 2, liquid inlet 3, working port 4 and pressure liquid return port 2 are mutually through between mounting groove 5, the top of multiple valve core body 6 is connected with top plate 7;Lower pressing subassembly, lower pressing subassembly is set to the top of valve body 1, and lower pressing subassembly includes screw rod 8, multiple screw rod 8 is rotated by bearing;Connected to the top of valve body 1, and the outer wall of multiple screw rod 8 is connected with connecting block 9 by screwing, the outer wall of connecting block 9 is provided with annular plate 10, one side of annular plate 10 is connected with pressing plate 11, the bottom side of pressing plate 11 is connected with pressing block 12, the top of multiple top plate 7 is provided with insertion slot 13 matched with pressing block 12.

[0025] Through the above technical scheme:

[0026] Specifically, when needing to overhaul valve core body 6, screw rod 8 is rotated, so that screw rod 8 drives pressing plate 11 to move upwards by connecting block 9 and annular plate 10, so that pressing block 12 on the bottom side of pressing plate 11 is separated from insertion slot 13, so that valve core body 6 is released from limiting in mounting groove 5, and then valve core body 6 is pulled upwards, so that valve core body 6 can be quickly taken out for overhaul.

[0027] The utility model discloses further implementation mode, refer to Figure 1 And Figure 4 The inside of inlet 3 is provided with filter assembly, and filter assembly includes connecting frame 22, and connecting frame 22 is connected between the inner wall all around of inlet 3, and the inner wall all around of connecting frame 22 is provided with filter screen 23, and the inner wall all around of connecting frame 22 is provided with inclined plane 26.

[0028] Through the above technical scheme,

[0029] Specifically, when the solid impurities in the liquid inside the valve body 1 need to be screened out, the working liquid is poured into the valve body 1 through the inlet 3, and in this process, the working liquid enters the inside of the connecting frame 22 and the solid impurities in the working liquid are filtered out through the filter screen 23, and after being filtered out, the solid impurities are accelerated to be discharged to the inside of the inlet 3 through the inner wall inclined plane of the connecting frame 22, so that the solid impurities in the working liquid can be quickly screened out.

[0030] Refer to Figures 1-4 The inner wall of the mounting groove 5 is symmetrically provided with two positioning grooves 14, the outer wall of the valve core body 6 is connected with two positioning blocks 15 matched with the positioning grooves 14, the outer wall of the valve core body 6 is provided with a groove 18, and the valve core body 6 is sleeved with a sealing ring 19 through the groove 18, the top end of the plurality of screw rods 8 is connected with a torsion plate 16, the inside of the insertion slot 13 is provided with a rubber pad 27, the outer wall of the connecting block 9 is connected with an annular block 21, the inner wall of the annular plate 10 is provided with an annular groove 20 matched with the annular block 21, one side of the connecting frame 22 is connected with two connecting plates 24, the connecting plates 24 and the inner wall of the inlet 2 are connected with a bolt 25, a plurality of arc grooves 17 are uniformly provided at the edge of the torsion plate 16, the filter screen 23 is centrally connected with a fixing block 28, and the bottom of the fixing block 28 is connected with a pull rod 29.

[0031] Through the above technical scheme,

[0032] Specifically, the positioning grooves 14 and the positioning blocks 15 are arranged to facilitate the positioning of the valve core body 6 in the mounting groove 5, the sealing ring 19 is arranged to improve the sealing performance of the valve core body 6, the torsion plate 16 is arranged to facilitate the screwing of the screw rod 8, the rubber pad 27 is arranged to increase the friction between the insertion slot 13 and the pressing block 12, the annular block 21 and the annular groove 20 are arranged to facilitate the rotation of the pressing plate 11 on the connecting block 9, the position of the pressing plate 11 can be adjusted, the connecting plates 24 and the bolt 25 are arranged to facilitate the quick disassembly and assembly of the connecting frame 22 and the filter screen 23, and the pull rod 29 is arranged to facilitate the outward pulling of the filter screen 23.

[0033] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A post fluid control reversing valve characterized by , comprising: The bottom side of the valve body (1) is provided with a liquid inlet (3), and a plurality of installation grooves (5) are opened at the top of the valve body (1), the inside of the installation groove (5) is provided with a valve core body (6), the bottom of the valve body (1) is provided with a working port (4), and one side of the valve body (1) is provided with a pressure liquid return port (2), the liquid inlet (3), the working port (4) and the pressure liquid return port (2) are mutually penetrated between the installation groove (5), and the top of the plurality of valve core bodies (6) is connected with the top plate (7); The lower pressing assembly is arranged on the top of the valve body (1), the lower pressing assembly comprises a plurality of screw rods (8), the plurality of screw rods (8) are rotatable through bearings; the top of the valve body (1) is connected, and the outer wall of the plurality of screw rods (8) is threadedly connected with a connecting block (9), the outer wall of the connecting block (9) is provided with an annular plate (10), one side of the annular plate (10) is connected with a pressing plate (11), one side of the bottom of the pressing plate (11) is connected with a pressing block (12), and the top of the plurality of top plates (7) is provided with a plurality of insertion grooves (13) matched with the pressing block (12).

2. A hydraulic control column directional control valve according to claim 1, characterized in that: The inside of the liquid inlet (3) is provided with a filter assembly, the filter assembly comprises a connecting frame (22), the connecting frame (22) is connected between the inner walls of the liquid inlet (3), and the inner walls of the connecting frame (22) are provided with a filter screen (23), and the inner walls of the connecting frame (22) are provided with inclined surfaces (26).

3. The column pilot operated directional control valve according to claim 1, characterized in that: The inner wall of the installation groove (5) is symmetrically provided with two positioning grooves (14), and the outer wall of the valve core body (6) is connected with two positioning blocks (15) matched with the positioning grooves (14).

4. The post fluid power direction valve according to claim 1, characterized in that: The outer wall of the valve core body (6) is provided with a groove (18), and the valve core body (6) is sleeved with a sealing ring (19) through the groove (18).

5. The post fluid power direction valve according to claim 1, characterized in that: The top end of the plurality of screw rods (8) is connected with a torsion plate (16).

6. A post hydraulic direction changing valve according to claim 1, characterized in that: The inside of the insertion groove (13) is provided with a rubber pad (27).

7. The post fluid power direction valve according to claim 1, characterized in that: The outer wall of the connecting block (9) is connected with an annular block (21), and the inner wall of the annular plate (10) is provided with an annular groove (20) matched with the annular block (21).

8. The column pilot operated directional control valve according to claim 2, characterized in that: One side of the connecting frame (22) is connected with two connecting plates (24), and the connecting plates (24) are connected with the inner walls of the liquid inlet (3) through bolts (25).

9. A post hydraulic control reversing valve according to claim 5, characterized in that: A plurality of arc grooves (17) are uniformly arranged at the edge of the torsion plate (16).

10. The column pilot operated directional control valve according to claim 8, characterized in that: The filter screen (23) is connected with a fixing block (28) in the middle, and the bottom of the fixing block (28) is connected with a pull rod (29).

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