Slide valve type electromagnetic directional valve

Abstract

The utility model relates to the technical field of reversing valves, and discloses a slide valve type electromagnetic reversing valve which comprises an electromagnetic reversing valve body, a slide valve rod is arranged in the electromagnetic reversing valve body, a reset assembly is arranged on the periphery of the left side of the slide valve rod, and the upper portion of the electromagnetic reversing valve body is fixedly connected with a connecting pipe. An oil storage box is fixedly connected to the upper portion of the connecting pipe, a control valve is arranged on the outer side of the connecting position of the connecting pipe and the oil storage box, a material supplementing assembly is arranged on the upper portion of the oil storage box, and the reset assembly comprises a mounting sleeve, a sliding groove, a sliding shaft, a sliding block and a reset spring; the sliding grooves are formed in the front side and the rear side of the mounting sleeve, and the sliding shaft is slidably connected into the mounting sleeve. According to the sliding valve type electromagnetic reversing valve, the sliding valve rod of the sliding valve type electromagnetic reversing valve can be automatically reset through cooperation of the installation sleeve, the sliding groove, the sliding shaft, the sliding block, the reset spring and other structures, and the spring can be effectively prevented from being bent.

Description

Technical Field

[0001] The utility model relates to the technical field of reversing valves, in particular to a slide valve type electromagnetic reversing valve. Background Art

[0002] The reversing valve is a directional control valve with more than two flow forms and more than two oil ports. It is a valve that realizes the communication, cutting off and reversing of hydraulic oil flow, as well as pressure unloading and sequential action control. It is a directional control valve that relies on the relative movement of the valve core and the valve body. There are two types: rotary valve type and sliding valve type. It is divided into two-position and three-position according to the number of working positions the valve core stays in the valve body; it is divided into two-way, three-way, four-way and six-way according to the number of oil circuits connected to the valve body; the ways to operate the valve core movement include manual, motorized, electric, hydraulic, electro-hydraulic and other forms.

[0003] The slide valve type solenoid reversing valve is a common hydraulic control valve, which is often used to control the flow direction of fluid in the hydraulic system. It is often used in various industrial and mechanical equipment, such as excavators, injection molding machines, hydraulic presses, etc.

[0004] In the prior art, the slide valve stem of the slide valve type electromagnetic reversing valve is often automatically reset by controlling the slide valve stem through the internal electromagnetic coil and spring. However, when the spring is lateral bent and deformed, the slide valve stem is prone to get stuck. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a slide valve type electromagnetic reversing valve, aiming to improve the problem in the prior art that the slide valve rod is prone to getting stuck when the spring is lateral bent and deformed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sliding valve type electromagnetic reversing valve, including an electromagnetic reversing valve body, a sliding valve rod is arranged inside the electromagnetic reversing valve body, a reset assembly is arranged around the left side of the sliding valve rod, a connecting pipe is fixedly connected to the upper part of the electromagnetic reversing valve body, an oil storage box is fixedly connected to the upper part of the connecting pipe, a control valve is arranged on the outside of the connection between the connecting pipe and the oil storage box, and a filling assembly is arranged on the upper part of the oil storage box.

[0007] As a further description of the above technical solution:

[0008] The reset assembly includes a mounting sleeve, a sliding groove, a sliding shaft, a slider and a reset spring. The mounting sleeve is fixedly connected around the left side of the sliding valve rod, the sliding groove is arranged on the front and rear sides of the mounting sleeve, the sliding shaft is slidably connected inside the mounting sleeve, the slider is fixedly connected on the front and rear sides of the sliding shaft, and the reset spring is arranged on the outside of the mounting sleeve and the sliding shaft.

[0009] As a further description of the above technical solution:

[0010] The feed replenishment assembly comprises an oil inlet pipe and a valve. The oil inlet pipe is fixedly connected to the upper part of the oil storage box, and the valve is arranged on the outside of the oil inlet pipe.

[0011] As a further description of the above technical solution:

[0012] The sliding block is slidably connected inside the sliding groove.

[0013] As a further description of the above technical solution:

[0014] One end of the return spring is fixedly connected to the mounting sleeve, and the other end of the return spring is fixedly connected to the sliding shaft.

[0015] As a further description of the above technical solution:

[0016] One end of the sliding shaft away from the mounting sleeve is fixedly connected to the electromagnetic reversing valve body.

[0017] The utility model has the following beneficial effects:

[0018] In the utility model, the spring can be effectively prevented from bending when the slide valve rod of the slide valve type electromagnetic reversing valve is automatically reset through the cooperation among the structures such as the mounting sleeve, the slide groove, the slide shaft, the slide block and the reset spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of the slide valve type electromagnetic reversing valve proposed by the utility model;

[0020] Figure 2 A partial cross-sectional view of the slide valve type electromagnetic reversing valve proposed by the utility model;

[0021] Figure 3 The utility model is a cross-sectional view of the installation sleeve of the slide valve type electromagnetic reversing valve.

[0022] Legend:

[0023] 1. Solenoid reversing valve body; 2. Sliding valve stem; 3. Mounting sleeve; 4. Sliding groove; 5. Sliding shaft; 6. Sliding block; 7. Reset spring; 8. Connecting pipe; 9. Oil storage box; 10. Control valve; 11. Oil inlet pipe; 12. Valve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-3 The utility model provides an embodiment: a slide valve type electromagnetic reversing valve, comprising an electromagnetic reversing valve body 1, a slide valve rod 2 is arranged inside the electromagnetic reversing valve body 1, a reset assembly is arranged around the left side of the slide valve rod 2, a connecting pipe 8 is fixedly connected to the upper part of the electromagnetic reversing valve body 1, an oil storage box 9 is fixedly connected to the upper part of the connecting pipe 8, a control valve 10 is arranged on the outer side of the connection between the connecting pipe 8 and the oil storage box 9, and a feeding assembly is arranged on the upper part of the oil storage box 9. The reset assembly comprises a mounting sleeve 3, a slide groove 4, a sliding shaft 5, a slider 6 and a reset spring 7. The mounting sleeve 3 is fixedly connected around the left side of the slide valve rod 2, the slide groove 4 is opened on the front and rear sides of the mounting sleeve 3, the sliding shaft 5 is slidably connected inside the mounting sleeve 3, the slider 6 is fixedly connected on the front and rear sides of the sliding shaft 5, the reset spring 7 is arranged on the outside of the mounting sleeve 3 and the sliding shaft 5, the slider 6 is slidably connected inside the slide groove 4, one end of the reset spring 7 is fixedly connected to the mounting sleeve 3, and the other end of the reset spring 7 is fixedly connected to the sliding shaft 5, and the end of the sliding shaft 5 away from the mounting sleeve 3 is fixedly connected to the electromagnetic reversing valve body 1.

[0026] The installation sleeve 3 is pushed by the sliding valve rod 2, and the installation sleeve 3 slides on the outside of the sliding shaft 5 to squeeze the reset spring 7. The sliding groove 4 and the slider 6 cooperate to limit the installation sleeve 3 and the sliding shaft 5. The reset spring 7 is then used to reset the installation sleeve 3 and drive the installation sleeve 3 to slide on the outside of the sliding shaft 5 to push the sliding valve rod 2 to reset. In this way, the sliding valve rod 2 of the sliding valve type electromagnetic reversing valve can be automatically reset, which can effectively prevent the spring from bending.

[0027] Reference Figure 1 The feed filling assembly includes an oil inlet pipe 11 and a valve 12 . The oil inlet pipe 11 is fixedly connected to the upper part of the oil storage box 9 , and the valve 12 is arranged on the outside of the oil inlet pipe 11 .

[0028] When the lubricating oil in the oil storage box 9 needs to be supplemented, the valve 12 is opened and the lubricating oil is added through the oil inlet pipe 11 to supplement the lubricating oil in the oil storage box 9 .

[0029] Working principle: When the sliding valve stem 2 of the sliding valve type electromagnetic reversing valve needs to be reset, the sliding valve stem 2 moves and pushes the mounting sleeve 3, and the mounting sleeve 3 slides on the outside of the sliding shaft 5 to squeeze the reset spring 7, and then the reset spring 7 is reset to drive the mounting sleeve 3 to slide on the outside of the sliding shaft 5 to push the sliding valve stem 2 to reset, thereby realizing that the sliding valve stem 2 of the sliding valve type electromagnetic reversing valve can be automatically reset, which can effectively prevent the spring from bending.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A slide valve type electromagnetic reversing valve, comprising an electromagnetic reversing valve body (1), characterized in that: A sliding valve rod (2) is arranged inside the electromagnetic reversing valve body (1), and reset components are arranged around the left side of the sliding valve rod (2). A connecting pipe (8) is fixedly connected to the upper part of the electromagnetic reversing valve body (1), and an oil storage box (9) is fixedly connected to the upper part of the connecting pipe (8). A control valve (10) is arranged outside the connection between the connecting pipe (8) and the oil storage box (9), and a material replenishing component is arranged on the upper part of the oil storage box (9).

2. The slide valve type electromagnetic reversing valve according to claim 1, characterized in that: The reset assembly comprises a mounting sleeve (3), a slide groove (4), a sliding shaft (5), a slider (6) and a reset spring (7); the mounting sleeve (3) is fixedly connected to the left side of the sliding valve rod (2); the slide groove (4) is provided at the front and rear sides of the mounting sleeve (3); the sliding shaft (5) is slidably connected inside the mounting sleeve (3); the slider (6) is fixedly connected to the front and rear sides of the sliding shaft (5); and the reset spring (7) is arranged outside the mounting sleeve (3) and the sliding shaft (5).

3. The slide valve type electromagnetic reversing valve according to claim 1, characterized in that: The feed replenishment assembly comprises an oil inlet pipe (11) and a valve (12); the oil inlet pipe (11) is fixedly connected to the upper part of the oil storage box (9); and the valve (12) is arranged outside the oil inlet pipe (11).

4. The slide valve type electromagnetic reversing valve according to claim 2, characterized in that: The sliding block (6) is slidably connected inside the sliding groove (4).

5. The slide valve type electromagnetic reversing valve according to claim 2, characterized in that: One end of the return spring (7) is fixedly connected to the mounting sleeve (3), and the other end of the return spring (7) is fixedly connected to the sliding shaft (5).

6. The slide valve type electromagnetic reversing valve according to claim 2, characterized in that: One end of the sliding shaft (5) away from the mounting sleeve (3) is fixedly connected to the electromagnetic reversing valve body (1).

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