Electromagnetic hydraulic valve core with wave-shaped sealing surface

Abstract

The utility model discloses an electromagnetic hydraulic valve core with a wave-shaped sealing surface, and particularly relates to the technical field of electromagnetic hydraulic valve cores, the electromagnetic hydraulic valve core comprises a valve body and a valve core main body, the valve core main body is movably arranged in the valve body, the outer side of the valve core main body is fixedly bonded with a wave-shaped sealing sleeve, one side of the valve core main body is fixedly connected with a valve rod, and the other side of the valve rod is fixedly connected with a valve rod. The other end of the valve rod extends out of the interior of the valve body, a connecting plate is movably arranged on the outer side of the valve rod, and the valve rod is connected with the connecting plate through a piston sleeve. The valve rod drives the valve element body to axially move in the valve body, the valve element body drives the wave-shaped sealing sleeve to axially move in the valve body, during axial movement, due to the fact that the sealing face is not in traditional plane contact, friction force borne by the valve element body is distributed more evenly, and the clamping stagnation phenomenon caused by too large local friction force is not prone to occurring; therefore, the axial movement of the valve core main body in the valve body is smoother, the structure is simple, and the movement smoothness of the valve core main body is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromagnetic hydraulic valve spool, more specifically, the utility model relates to electromagnetic hydraulic valve spool with wavy sealing surface. BACKGROUND

[0002] Electromagnetic hydraulic valve is a kind of hydraulic element by electromagnetic force control hydraulic oil flow direction and flow, is widely used in industrial automation, engineering machinery and other fields, and valve core is the core component of electromagnetic hydraulic valve, usually for columnar or plunger structure, its main function is to change the oil passage on-off or section area in valve body by moving, to control the flow direction, pressure and flow of hydraulic oil.

[0003] Through the retrieval, the patent with the announcement number CN220365984U discloses a kind of hydraulic valve spool, the utility model is transported after end, start electric telescopic rod, first scraper moves, first scraper outer wall and inner wall respectively with the inner wall of valve body and the outer wall of valve core body contact, liquid adsorbed on it is scraped, and simultaneously start motor, rotating rod rotates, drives connecting rod, first rotating ring, second rotating ring and second scraper rotate, liquid adsorbed on first scraper is scraped, when second scraper and second valve core head contact, second scraper scrapes liquid adsorbed on second valve core head, facilitate the cleaning of staff.

[0004] The above-mentioned valve core when in use, push rod drives first valve core head, second valve core head and valve core body, so that inlet pipe and first liquid outlet pipe or second liquid outlet pipe are communicated, but the valve core and the valve body are in plane contact, the friction force received by the valve core is unevenly distributed, and the valve core is not smooth in axial movement in the valve body. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an electromagnetic hydraulic valve spool with a wavy sealing surface, which aims to solve the problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an electromagnetic hydraulic valve spool with a wavy sealing surface, comprising a valve body and a valve core body, and the valve core body is movably arranged inside the valve body, a wavy sealing sleeve is fixedly bonded to the outer side of the valve core body, a valve stem is fixedly connected to one side of the valve core body, and the other end of the valve stem extends out of the inside of the valve body, a connecting plate is movably arranged on the outer side of the valve stem, and the valve stem and the connecting plate are connected through a piston sleeve, a plurality of first bolts are movably arranged on the connecting plate, and the connecting plate and the valve body are fixed through the plurality of first bolts, a feed pipe is fixedly connected to the other end of the valve body, and a discharge pipe is fixedly connected to the outer side of the valve body.

[0007] Further, one side of the connecting plate is movably provided with a gasket, and one side of the gasket is in contact with the valve body.

[0008] It can be seen that the gasket can improve the sealing between the connecting plate and the valve body.

[0009] Further, two insertion rods are fixedly connected to one side of the connecting plate, one end of each of the two insertion rods penetrates one side of the valve core body, and a sliding sleeve is movably sleeved on each of the two insertion rods, and one end of each of the two sliding sleeves is fixedly connected with the valve core body.

[0010] It can be seen that the valve core body drives the two sliding sleeves to move on the two insertion rods respectively, thereby preventing the valve core body from deflecting when moving axially.

[0011] Further, a spring is movably sleeved on each of the two sliding sleeves, and both ends of each of the two springs are fixedly connected with the connecting plate and the valve core body.

[0012] It can be seen that the valve core body extrudes the two springs, and when the two springs rebound, the reset of the valve core body can be accelerated.

[0013] Further, a baffle is fixedly connected to one side of the valve core body, and one side of the baffle is in contact with the wave-shaped sealing sleeve.

[0014] It can be seen that the baffle can limit one side of the wave-shaped sealing sleeve.

[0015] Further, a cleaning assembly is arranged on the valve core body, the cleaning assembly comprises a stepping motor, a connecting shaft, a fixed sleeve, a bristle plate and a second bolt, the stepping motor is fixedly installed in the valve core body, and the output shaft end of the stepping motor is fixedly connected with the connecting shaft.

[0016] Further, the connecting shaft and the valve core body are movably connected through a bearing, the fixed sleeve is movably sleeved on the connecting shaft, the fixed sleeve and the connecting shaft are fixed through the second bolt, and one side of the bristle plate is fixedly connected with the fixed sleeve.

[0017] The technical effects and advantages of the utility model are as follows:

[0018] 1. The valve rod drives the valve core body to move axially in the valve body, the valve core body drives the wave-shaped sealing sleeve to move axially in the valve body, when moving axially, because the sealing surface is not a traditional plane contact, the friction force borne by the valve core body is more uniform, and the local friction force is not easy to be too large to cause the jamming phenomenon, thereby making the axial movement of the valve core body in the valve body more smooth, the structure is simple, and the smoothness of the movement of the valve core body is effectively improved.

[0019] 2. The utility model discloses a cleaning assembly is provided with the fixed cover and the brush hair board, when the liquid adheres to the one end of the valve core main part, starts the step motor, and the step motor works and drives the connecting shaft rotation, thereby drives the fixed cover and the brush hair board rotation, and the liquid adhered to the one end of the valve core main part is cleaned through the brush hair on the brush hair board, when the connecting plate is fixed with the valve body, rotates the second bolt and makes it away from the connecting shaft, and the brush hair board is disassembled and washes, simple structure, convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0020] The structure, proportion, size etc. shown in the specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions that can be implemented by the utility model, so they do not have the substantial meaning of technology, any modification of structure, change of proportion relationship or adjustment of size, as long as it does not affect the effect and purpose that can be produced by the utility model, should still fall within the scope covered by the technical content disclosed by the utility model.

[0021] Figure 1 It is the overall structure schematic view of the utility model;

[0022] Figure 2 It is the overall structure bottom view of the utility model;

[0023] Figure 3 It is the valve body section and baffle section assembly structure schematic view of the utility model;

[0024] Figure 4 It is the valve rod and wave-shaped sealing sleeve assembly structure schematic view of the utility model;

[0025] Figure 5 It is the cleaning assembly structure schematic view of the utility model.

[0026] In the drawing: 1, valve body;2, feed pipe;3, discharge pipe;4, valve rod;5, connecting plate;6, first bolt;7, gasket;8, valve core main part;9, cleaning assembly;10, wave-shaped sealing sleeve;11, baffle;12, plug rod;13, sliding sleeve;14, spring;901, step motor;902, connecting shaft;903, fixed cover;904, brush hair board;905, second bolt. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are illustrated by specific examples below, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. Obviously, the described examples are part of the examples of the utility model, not all examples. Based on the examples in the utility model, all other examples obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] With reference to the description accompanying drawings Figures 1-5 The electromagnetic hydraulic valve spool with a wavy sealing surface of the embodiment comprises a valve body 1 and a spool body 8, the spool body 8 is movably arranged in the interior of the valve body 1, the outer side of the spool body 8 is fixedly bonded with a wavy sealing sleeve 10, one side of the spool body 8 is fixedly connected with a valve rod 4, the other end of the valve rod 4 extends out of the interior of the valve body 1, the outer side of the valve rod 4 is movably arranged with a connecting plate 5, the valve rod 4 and the connecting plate 5 are connected through a piston sleeve, a plurality of first bolts 6 are movably arranged on the connecting plate 5, the connecting plate 5 and the valve body 1 are fixed through the plurality of first bolts 6, the other end of the valve body 1 is fixedly communicated with a feed pipe 2, the outer side of the valve body 1 is fixedly communicated with a discharge pipe 3.

[0029] Further, the one side of the connecting plate 5 is movably arranged with a gasket 7, the one side of the gasket 7 is in contact with the valve body 1, the one side of the connecting plate 5 is fixedly connected with two plug rods 12, the one end of the two plug rods 12 penetrates through the one side of the spool body 8, the two plug rods 12 are movably sleeved with a sliding sleeve 13, the one end of the two sliding sleeves 13 is fixedly connected with the spool body 8, the two sliding sleeves 13 are movably sleeved with a spring 14, the two ends of the two springs 14 are fixedly connected with the connecting plate 5 and the spool body 8 respectively.

[0030] Further, the one side of the spool body 8 is fixedly connected with a baffle 11, the one side of the baffle 11 is in contact with the wavy sealing sleeve 10.

[0031] Further, the spool body 8 is provided with a cleaning assembly 9, the cleaning assembly 9 comprises a stepping motor 901, a connecting shaft 902, a fixed sleeve 903, a bristle plate 904 and a second bolt 905, the stepping motor 901 is fixedly installed in the interior of the spool body 8, the output shaft end of the stepping motor 901 is fixedly connected with the connecting shaft 902, the connecting shaft 902 and the spool body 8 are movably connected through a bearing, the fixed sleeve 903 is movably sleeved on the connecting shaft 902, the fixed sleeve 903 and the connecting shaft 902 are fixed through the second bolt 905, the one side of the bristle plate 904 is fixedly connected with the fixed sleeve 903.

[0032] When the one end of the spool body 8 adheres with liquid, the stepping motor 901 is started, the stepping motor 901 works to drive the connecting shaft 902 to rotate, thereby driving the fixed sleeve 903 and the bristle plate 904 to rotate, the liquid adhered to the one end of the spool body 8 is cleaned through the bristles on the bristle plate 904, when the connecting plate 5 and the valve body 1 are disengaged, the second bolt 905 is rotated and moved away from the connecting shaft 902, the bristle plate 904 is disassembled and cleaned, the structure is simple and the use is convenient.

[0033] The use method of the embodiment is as follows:

[0034] In use, the valve core body 8 is driven to move axially in the valve body 1 by the valve rod 4, liquid enters the valve body 1 through the inlet pipe 2 and flows out of the valve body 1 through the outlet pipe 3, forming a complete flow channel, and the wave-shaped sealing sleeve 10 is driven to move axially in the valve body 1 by the valve core body 8, when moving axially, the friction force on the valve core body 8 is more evenly distributed due to the non-traditional planar contact of the sealing surface, and the valve core body 8 is not prone to jamming due to excessive local friction force, so that the axial movement of the valve core body 8 in the valve body 1 is smoother, and the elastic deformation characteristics of the wave-shaped sealing sleeve 10 can compensate for the positional deviation of the valve core during movement to a certain extent, the connection plate 5 is removed by releasing the fixation between the connection plate 5 and the valve body 1 through the first bolt 6, and the wave-shaped sealing sleeve 10 of the connection plate 5 is disassembled and replaced, the structure is simple, and the smoothness of the movement of the valve core body 8 is effectively improved;

[0035] Similarly, the connection plate 5 is installed, the gasket 7 can improve the sealing between the connection plate 5 and the valve body 1, the baffle 11 can limit one side of the wave-shaped sealing sleeve 10, and the valve core body 8 drives the two sliding sleeves 13 to move on the two insertion rods 12 respectively, so that the valve core body 8 is prevented from deflecting when moving axially, and the valve core body 8 extrudes the two springs 14, and when the two springs 14 rebound, the reset of the valve core body 8 can be accelerated.

[0036] The contents not described in detail in the specification are all prior art known to those skilled in the art, and the model parameters of various electric appliances are not specifically limited, and conventional equipment can be used, in the technical solution, the electric appliance control elements not mentioned belong to prior art, so they are not shown in the drawings, and will not be described here.

[0037] The above is only a preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An electromagnetic hydraulic valve spool with a wavy sealing surface, comprising a valve body (1) and a spool body (8), and the spool body (8) is movably arranged in the interior of the valve body (1), characterized in that: The outer side of the valve core body (8) is fixedly bonded with a wave-shaped sealing sleeve (10), one side of the valve core body (8) is fixedly connected with a valve rod (4), and the other end of the valve rod (4) extends out of the inside of the valve body (1), the outer side of the valve rod (4) is movably provided with a connecting plate (5), and the valve rod (4) and the connecting plate (5) are connected through a piston sleeve, a plurality of first bolts (6) are movably arranged on the connecting plate (5), and the connecting plate (5) and the valve body (1) are fixedly connected through the plurality of first bolts (6), the other end of the valve body (1) is fixedly communicated with a feeding pipe (2), and the outer side of the valve body (1) is fixedly communicated with a discharging pipe (3).

2. The electromagnetic hydraulic valve spool having a wave-shaped sealing surface according to claim 1, characterized in that: One side of the connecting plate (5) is movably provided with a gasket (7), and one side of the gasket (7) is in contact with the valve body (1).

3. The electromagnetic hydraulic valve spool having a wave-shaped sealing surface according to claim 1, characterized in that: One side of the connecting plate (5) is fixedly connected with two plug rods (12), and one end of each of the two plug rods (12) penetrates through one side of the valve core body (8), and a sliding sleeve (13) is movably arranged on each of the two plug rods (12), and one end of each of the two sliding sleeves (13) is fixedly connected with the valve core body (8).

4. The electromagnetic hydraulic valve spool having a wave-shaped sealing surface according to claim 3, characterized in that: A spring (14) is movably arranged on each of the two sliding sleeves (13), and the two ends of each of the two springs (14) are fixedly connected with the connecting plate (5) and the valve core body (8) respectively.

5. The electromagnetic hydraulic valve spool having a wave-shaped sealing surface according to claim 1, characterized in that: One side of the valve core body (8) is fixedly connected with a baffle (11), and one side of the baffle (11) is in contact with the wave-shaped sealing sleeve (10).

6. The electromagnetic hydraulic valve spool having a wave-shaped sealing surface of claim 1, wherein: A cleaning assembly (9) is arranged on the valve core body (8), the cleaning assembly (9) comprises a stepping motor (901), a connecting shaft (902), a fixed sleeve (903), a bristle plate (904) and a second bolt (905), the stepping motor (901) is fixedly installed in the inside of the valve core body (8), and the output shaft end of the stepping motor (901) is fixedly connected with the connecting shaft (902).

7. The electromagnetic hydraulic valve spool having a wave-shaped sealing surface according to claim 6, characterized in that: The connecting shaft (902) and the valve core body (8) are movably connected through a bearing, the fixed sleeve (903) is movably arranged on the connecting shaft (902), and the fixed sleeve (903) and the connecting shaft (902) are fixedly connected through the second bolt (905), and one side of the bristle plate (904) is fixedly connected with the fixed sleeve (903).

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