Honeycomb oil way structure of hydraulic valve

Abstract

The utility model discloses a hydraulic valve honeycomb oil way structure, which belongs to the technical field of hydraulic control elements, and comprises a valve body and a valve rod moving on the valve body, the valve rod comprises a first valve core, a second valve core and a third valve core which are arranged in sequence, the first valve core, the second valve core and the third valve core are respectively provided with an annular groove, the valve rod is provided with a conical surface, and the conical surface is provided with an annular groove. Due to the design of the annular groove, the function of storing dirt in the moving process is ingeniously achieved, the dirt collecting efficiency is further optimized through the unique conical surface and inclined groove structure, the dirt can enter the annular groove more smoothly through the design structure, and therefore the risk that the valve rod is clamped is reduced. In addition, the depth of the annular groove is specially set to be larger than that of the inclined groove, so that the dirt retention capacity is enhanced, the dirt is effectively prevented from flowing out at will, and the overall cleaning efficiency and operation stability are further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic control element technical field especially relates to hydraulic valve honeycomb oil circuit structure. BACKGROUND

[0002] Flow control hydraulic valve, short for flow control valve or flow valve, is an important component in hydraulic system, and it is a valve that changes the flow through the valve port by changing the size of the throttle port flow area under a certain pressure difference. It is used to control the flow in the hydraulic system, so as to realize the speed adjustment of the actuator (such as hydraulic cylinder, hydraulic motor, etc.).

[0003] Flow control valve adjusts the flow of liquid by changing the position of valve core. Although the traditional plunger type hydraulic valve core has simple structure, easy manufacturing and maintenance, but in the long-term use process, the continuous movement of plunger may cause the plunger movement to become unsmooth due to wear, impurity accumulation or poor lubrication, and even cause jamming phenomenon. UTILITY MODEL CONTENT

[0004] The utility model discloses a hydraulic valve honeycomb oil circuit structure, which can solve the problem that the continuous movement of the plunger may cause the plunger movement to become unsmooth due to wear, impurity accumulation or poor lubrication, and even cause jamming phenomenon.

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

[0006] The hydraulic valve honeycomb oil circuit structure comprises a valve body and a valve rod moving on the valve body, the valve rod comprises valve core one, valve core two and valve core three arranged in sequence, annular grooves are formed in the valve core one, the valve core two and the valve core three, and a conical surface is formed in the valve rod.

[0007] Preferably, annular groove sections are arranged between the valve core two and the valve core one and the valve core three respectively.

[0008] Preferably, the conical surface faces the annular groove section.

[0009] Preferably, the annular grooves and the annular groove sections are communicated through inclined grooves.

[0010] Preferably, a sealing cover sealing the end of the valve rod is installed on one side of the valve body, and a channel communicating with the sealing cover is formed in the valve body.

[0011] Preferably, a fixed pad is sleeved on the valve rod, one side surface of the fixed pad abuts against the valve body, the end of the valve rod is fixedly provided with a movable pad, one end of the valve body is sleeved with a spring one, and the two ends of the spring one abut against the fixed pad and the movable pad respectively.

[0012] Preferably, the spring two is arranged in the spring one inner ring, and two ends of the spring two are respectively in abutment with the fixed pad and the movable pad, and a diameter of the spring two is smaller than a diameter of the spring one.

[0013] Preferably, the movable pad is connected with the valve rod through a screw.

[0014] Preferably, a blocking pad is arranged between the screw and the movable pad, an end of the valve rod is provided with a clamping groove, and the blocking pad is fixed with a clamping block.

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

[0016] The design of the annular groove not only ingeniously plays a role of storing dirt in the movement process, but also further optimizes the collection efficiency of the dirt through the unique taper surface and the inclined groove structure. These design structures promote the dirt to enter the annular groove more smoothly, thereby reducing the risk of valve rod jamming. In addition, the depth of the annular groove is specially set to be greater than the depth of the inclined groove, which enhances the retention capacity of the dirt, effectively limits the random outflow of the dirt, and further improves the overall cleaning efficiency and operation stability.

[0017] Through the blocking pad, the elastic force of the spring one and the spring two is fed back to the movable pad through the movable pad, and is finally blocked by the blocking pad, so that the screw finally bears stable pressure in the axial direction. This design not only enhances the stability of the structure, but also ensures the position fixation of the screw during long-time use, avoiding performance degradation caused by loosening or displacement. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] Figure 1 It is the overall structure schematic diagram of the utility model.

[0020] Figure 2 It is the spring one and spring two schematic diagram of the utility model.

[0021] Figure 3 It is the valve rod schematic diagram of the utility model.

[0022] Figure 4 It is the Figure 3 It is the enlarged schematic diagram of A place in the middle.

[0023] Figure 5The fixed pad and the movable pad of the utility model are schematic diagrams.

[0024] Figure 6 The blocking pad and the screw of the utility model are schematic diagrams.

[0025] Figure 7 The clamping block of the utility model is a schematic diagram.

[0026] Figure 8 The clamping groove of the utility model is a schematic diagram.

[0027] Figure number explanation: 1, valve body; 11, channel; 2, valve rod; 21, valve core one; 22, valve core two; 23, valve core three; 24, annular groove; 25, taper surface; 26, annular groove section; 27, inclined groove; 28, clamping groove; 3, sealing cover; 4, fixed pad; 5, movable pad; 6, spring one; 7, spring two; 8, screw; 9, blocking pad; 91, clamping block. DETAILED DESCRIPTION

[0028] The utility model will be described in further detail below in combination with the drawings.

[0029] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought of by those skilled in the art. The basic principles of the utility model defined in the following description can be used in other embodiments, modification schemes, improvement schemes, equivalent schemes and other technical schemes without departing from the spirit and scope of the utility model.

[0030] Those skilled in the art should understand that, in the disclosure of the utility model, the orientation or position indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of the simplified description of the utility model, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore the above-mentioned terms cannot be understood as a limitation of the utility model.

[0031] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0032] Please refer to Figure 1 - Figure 8The application discloses a hydraulic valve honeycomb oil path structure, which comprises a valve body 1 and a valve rod 2 moving on the valve body 1, wherein the valve rod 2 comprises valve core one 21, valve core two 22 and valve core three 23 arranged in sequence, annular grooves 24 are formed on the valve core one 21, the valve core two 22 and the valve core three 23, the annular grooves 24 are arranged to store dirt in the movement process, the valve core two 22 has two annular grooves 24, when the valve rod 2 moves left and right, the two annular grooves 24 of the valve core two 22 can more easily store dirt, so that the valve rod 2 can be well operated, a conical surface 25 is formed on the valve rod 2, annular groove sections 26 are arranged between the two ends of the valve core two 22 and the valve core one 21 and the valve core three 23 respectively, the conical surface 25 faces the annular groove sections 26, the conical surface 25 is provided with four conical surfaces 25, which are located on the two sides of the two annular groove sections 26 respectively, and the conical surface 25 makes the movement of the valve rod 2 more easily.

[0033] The annular grooves 24 and the annular groove sections 26 are communicated through inclined grooves 27, a plurality of inclined grooves 27 are arranged in the circumferential direction, the conical surface 25 and the inclined grooves 27 can more easily make the dirt enter the annular grooves 24, the depth of the annular groove is greater than the depth of the inclined groove 27, and the outflow of the dirt is reduced.

[0034] A sealing cover 3 for blocking the end of the valve rod 2 is arranged on one side of the valve body 1, a sealing ring is arranged between the sealing cover 3 and the valve body 1, a channel 11 is formed in the valve body 1 and communicates with the sealing cover 3, hydraulic oil enters the sealing cover 3 through external pressure, and then the valve rod 2 moves to adjust the flow of the liquid.

[0035] A fixing pad 4 is arranged on the valve rod 2, one side surface of the fixing pad 4 abuts against the valve body 1, the fixing pad 4 is located in the sealing cover 3, an active pad 5 is fixed to the end of the valve rod 2, the active pad 5 is located in the sealing cover 3, a spring one 6 is arranged on one end of the valve body 1, the two ends of the spring one 6 abut against the fixing pad 4 and the active pad 5 respectively, and the spring one 6 is used for resetting the valve rod 2 when there is no external pressure of the hydraulic oil.

[0036] A spring two 7 is arranged in the inner ring of the spring one 6, the two ends of the spring two 7 abut against the fixing pad 4 and the active pad 5 respectively, the diameter of the spring two 7 is smaller than that of the spring one 6, and the spring one 6 and the spring two 7 make the resetting effect of the valve rod 2 better.

[0037] The movable gasket 5 is connected with the valve rod 2 through the screw 8, a blocking gasket 9 is arranged between the screw 8 and the movable gasket 5, an end of the valve rod 2 is provided with a clamping groove 28, the blocking gasket 9 is fixed with a clamping block 91, when the fixed gasket 4 is installed, the movable gasket 5 is directly sleeved on the valve rod 2, and then abuts against the casing of the valve body 1, then the spring one 6 and the spring two 7 are sleeved on the valve rod 2, then the movable gasket 5 is inserted on the valve rod 2, and then the inserting block on the blocking gasket 9 is inserted into the clamping groove 28 and is rotated, so that the blocking gasket 9 cannot move along the axial direction, the screw 8 is threadedly connected with the valve rod 2, the screw 8 abuts against the blocking gasket 9, the blocking gasket 9 blocks the movable gasket 5, the movable screw 8 is prevented from being stressed in the axial direction, finally, the sealing cover 3 is connected with the valve body 1 through the bolts. The screw 8 is stable in the axial direction, which not only enhances the stability of the structure, but also ensures the position of the screw 8 fixed in the long-time use process, and performance reduction caused by loosening or displacement is avoided.

[0038] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the drawings are only examples and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been shown and explained in the embodiments, and the embodiments of the utility model can be deformed or modified in any way without departing from the principle.

Claims

1. A hydraulic valve cell oil passage structure, characterized by, The utility model provides a valve, including valve body (1) and the valve stem (2) of valve body (1) movement, the valve stem (2) includes valve core one (21), valve core two (22) and valve core three (23) arranged in sequence, the valve core one (21), valve core two (22) and valve core three (23) all are set up annular recess (24), the valve stem (2) is set up taper face (25).

2. The hydraulic valve cartridge fluid circuit structure of claim 1, wherein: The both ends of the valve core two (22) are respectively provided with annular groove section (26) between the valve core one (21) and the valve core three (23).

3. The hydraulic valve cartridge fluid circuit structure of claim 2, wherein: The taper face (25) faces the annular groove section (26).

4. The hydraulic valve cartridge fluid circuit structure of claim 3, wherein: The annular recess (24) and the annular groove section (26) are communicated through inclined groove (27).

5. The hydraulic valve cartridge fluid circuit structure of claim 1, wherein: One side of the valve body (1) is provided with sealing cover (3) blocking the end of valve stem (2), and the valve body (1) is provided with channel (11) communicating with the sealing cover (3).

6. The hydraulic valve cartridge fluid circuit structure of claim 5, wherein: The valve stem (2) is provided with fixed pad (4), one side of the fixed pad (4) abuts against the valve body (1), the end of the valve stem (2) is provided with movable pad (5), one end of the valve body (1) is provided with spring one (6), the both ends of the spring one (6) abut against the fixed pad (4) and the movable pad (5) respectively.

7. The hydraulic valve cartridge fluid circuit structure of claim 6, wherein: The spring two (7) is arranged in the inner ring of the spring one (6), the both ends of the spring two (7) abut against the fixed pad (4) and the movable pad (5) respectively, and the diameter of the spring two (7) is less than the diameter of the spring one (6).

8. The hydraulic valve cartridge fluid circuit structure of claim 7, wherein: The movable pad (5) is connected with the valve stem (2) through screw (8).

9. The hydraulic valve cartridge fluid circuit structure of claim 8, wherein: The blocking pad (9) is arranged between the screw (8) and the movable pad (5), the end of the valve stem (2) is provided with clamping groove (28), and the blocking pad (9) is provided with clamping block (91).

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