Hydraulic oil cylinder one-way hydraulic control pile-up valve

Abstract

The utility model belongs to the technical field of hydraulic control, and particularly relates to a hydraulic oil cylinder one-way hydraulic control pile-up valve which comprises an oil cylinder body. A valve block is arranged at the top of the oil cylinder body; a first fixing bolt is arranged at the top of the valve block; a plurality of groups of first fixing bolts are symmetrically arranged at the top of the valve block; the oil cylinder body and the valve block are fixedly connected through a first fixing bolt. A first oil inlet is formed in the side wall of the valve block; a second oil inlet is formed in the side wall, close to the first oil inlet, of the valve block; a first oil outlet is formed in the bottom of the valve block; according to the step, through the arrangement of the valve block, the first oil inlet, the second oil inlet, the first oil outlet, the second oil outlet and the one-way cartridge valve, the oil cylinder body and the valve block are fixed into a whole, the oil pressure path is shortened, the stability of system pressure is improved, hoses for installation and connection are reduced, an internal mechanism and an installation structure are optimized, and the adaptability of the device during use is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic control, in particular to a one-way hydraulically controlled integrated valve for a hydraulic oil cylinder. Background Art

[0002] The hydraulic cylinder one-way hydraulically controlled integrated valve, also known as a hydraulically controlled one-way valve, is a special valve that allows fluid to pass in one direction and prevents the fluid from flowing in the opposite direction.

[0003] The working principle of the hydraulic check valve is to reverse the flow of the check valve by controlling the fluid pressure. The hydraulic check valve is widely used in coal mine machinery and equipment. In the application of coal mine hydraulic cylinders, the hydraulically controlled check valve is generally used for the locking function of the hydraulic cylinder to prevent the vertical hydraulic cylinder from falling by its own weight. In most existing hydraulically controlled check valve technologies, the hydraulic check valve is generally connected in series in the hydraulic system or externally connected to the outside of the hydraulic cylinder for use. It is a universal installation connection form. In some special operating conditions, the internal structure, installation connection and special operating conditions of this hydraulically controlled check valve cannot be well adapted.

[0004] To this end, the utility model provides a one-way hydraulically controlled integrated valve for a hydraulic cylinder. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: the utility model discloses a one-way hydraulic control integrated valve for a hydraulic cylinder, comprising a cylinder body; a valve block is provided on the top of the cylinder body; a first fixing bolt is provided on the top of the valve block; a plurality of the first fixing bolts are arranged on the top of the valve block and are symmetrically arranged; the cylinder body and the valve block are fixedly connected by the first fixing bolt; a first oil inlet is provided on the side wall of the valve block; a second oil inlet is provided on the side wall of the valve block close to the first oil inlet; a first oil outlet is provided on the bottom of the valve block; a second oil outlet is provided on the bottom of the valve block close to the first oil outlet; a plurality of oil passages are provided inside the valve block; the first oil inlet is connected through a A group of oil passages is connected to the first oil outlet; the second oil inlet is connected to the second oil outlet through another group of oil passages; a one-way cartridge valve is provided in the middle of the valve block; the first oil outlet and the second oil outlet are connected to the inside of the cylinder body; the first oil inlet and the second oil inlet are externally connected to the control oil circuit; the one-way cartridge valve is connected to the second oil inlet and the second oil outlet through a group of oil passages; this step fixes the cylinder body and the valve block together through the arrangement of the valve block, the first oil inlet, the second oil inlet, the first oil outlet, the second oil outlet, and the one-way cartridge valve, shortens the oil pressure path, improves the stability of the system pressure, reduces the number of installed and connected hoses, optimizes the internal mechanism and the installation structure, and improves the adaptability of the device when used.

[0007] Preferably, a protective frame is detachably mounted on the side wall of the oil cylinder body close to the valve block; a slide rail is fixedly connected to the side wall of the protective frame away from the first oil inlet; a pair of slide rails are arranged on the side wall of the protective frame and are symmetrically arranged; a pull-out plate is slidably fitted inside the pair of slide rails; a handle is fixedly connected to the side wall of the pull-out plate away from the protective frame; a plurality of groups of second fixing bolts are provided on the side wall of the pull-out plate close to the handle; this step controls the opening and closing of the pull-out plate through the arrangement of the protective frame, the slide rail and the pull-out plate, improves the heat dissipation capacity of the device, reduces the problem of oil heating inside the valve block, and when the pull-out plate is closed, the inside of the protective frame is sealed to reduce dust or foreign matter from entering the protective frame to cause dirt on the valve block, thereby improving the cleanliness of the surface of the valve block.

[0008] Preferably, the side wall of the protective frame away from the pull-out plate is fixedly connected to a fixed frame; the fixed frames are arranged in a pair on the side walls of the protective frame and are symmetrically arranged; the inner wall of the fixed frame is fixedly connected to an elastic cloth; this step reduces the entry of dust or powder into the protective frame through the arrangement of the fixed frame and the elastic cloth, improves the cleanliness of the valve block surface, and reduces the overheating of the valve block.

[0009] Preferably, a damping spring is fixedly connected to the top of the protective frame; multiple groups of the damping springs are arranged on the top of the protective frame and are evenly distributed on the top of the protective frame; protective covers are fixedly connected to the tops of the multiple groups of damping springs; this step reduces the situation where foreign objects falling from the top of the protective frame cause damage to the valve block through the arrangement of damping springs and protective covers, thereby improving the safety of the valve block when in use.

[0010] Preferably, a lifting block is fixedly connected to the middle part of the elastic cloth away from the protective frame; a buckle groove is provided on the outer wall of the lifting block; in this step, by setting the lifting block, the dust or powder adhered to the surface of the elastic cloth is pulled off, thereby improving the cleanliness of the surface of the elastic cloth.

[0011] Preferably, a rubber ring is provided in the middle of the protective frame away from the fixed frame; a pair of the rubber rings are provided in the middle of the protective frame away from the fixed frame and are symmetrically arranged; this step reduces the influence of pipeline vibration on the surface components of the protective frame through the arrangement of the rubber rings, thereby improving the stability of the device during use.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model describes a one-way hydraulically controlled integrated valve for a hydraulic cylinder, which fixes the cylinder body and the valve block together through the arrangement of a valve block, a first oil inlet, a second oil inlet, a first oil outlet, a second oil outlet, and a one-way cartridge valve, thereby shortening the oil pressure path, improving the stability of the system pressure, reducing the number of hoses for installation and connection, optimizing the internal mechanism and the installation structure, and improving the adaptability of the device when used.

[0014] 2. The utility model describes a hydraulic cylinder one-way hydraulically controlled integrated valve, which controls the opening and closing of the pull-out plate through the setting of a protective frame, a slide rail, and a pull-out plate, thereby improving the heat dissipation capacity of the device and reducing the problem of oil heating inside the valve block. When the pull-out plate is closed, the inside of the protective frame is sealed to reduce dust or foreign matter from entering the protective frame, which would cause the valve block to become dirty, thereby improving the cleanliness of the surface of the valve block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the valve block and the oil cylinder body in the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the valve block and the one-way cartridge valve in the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the pull-out plate and the protective frame in the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the rubber ring and the protective frame in the utility model;

[0021] In the figure: 1. Cylinder body; 11. Valve block; 12. First oil inlet; 13. Second oil inlet; 14. First oil outlet; 15. Second oil outlet; 16. One-way cartridge valve; 17. First fixing bolt; 2. Protective frame; 21. Slide rail; 22. Pull-out plate; 23. Handle; 24. Second fixing bolt; 3. Fixed frame; 31. Elastic cloth; 4. Damping spring; 41. Protective cover; 5. Pull block; 6. Rubber ring. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1 to 3As shown, a hydraulic cylinder one-way hydraulic control integrated valve described in an embodiment of the utility model comprises a cylinder body 1; a valve block 11 is provided on the top of the cylinder body 1; a first fixing bolt 17 is provided on the top of the valve block 11; a plurality of the first fixing bolts 17 are arranged on the top of the valve block 11, and are symmetrically arranged; the cylinder body 1 and the valve block 11 are fixedly connected by the first fixing bolts 17; a first oil inlet 12 is provided on the side wall of the valve block 11; a second oil inlet 13 is provided on the side wall of the valve block 11 near the first oil inlet 12; a first oil outlet 14 is provided on the bottom of the valve block 11; a second oil outlet 15 is provided on the bottom of the valve block 11 near the first oil outlet 14; a plurality of groups of oil passages are provided inside the valve block 11; the first oil inlet 12 is connected to the first oil outlet 14 through a group of oil passages; the second oil inlet 13 is connected to the second oil outlet 15 through another group of oil passages; a one-way cartridge valve 16 is provided in the middle of the valve block 11 ; The first oil outlet 14 and the second oil outlet 15 are connected to the inside of the cylinder body 1; the first oil inlet 12 and the second oil inlet 13 are externally connected to the control oil circuit; the one-way cartridge valve 16 is connected to the second oil inlet 13 and the second oil outlet 15 through a group of oil channels; during operation, the valve block 11 is installed on the cylinder body 1, and when there is no oil pressure in the control oil circuit, the hydraulic oil flows into the first oil inlet 12 and flows out from the first oil outlet 14 through the oil channel, and when there is oil pressure in the control oil circuit, the hydraulic oil flows into the second oil inlet 13 and flows out from the second oil outlet 15 through the oil channel and the one-way cartridge valve 16; in this step, the cylinder body 1 and the valve block 11 are fixed together by the arrangement of the valve block 11, the first oil inlet 12, the second oil inlet 13, the first oil outlet 14, the second oil outlet 15, and the one-way cartridge valve 16, which shortens the oil pressure path, improves the stability of the system pressure, reduces the installation and connection hoses, optimizes the internal mechanism and installation structure, and improves the adaptability of the device when used.

[0024] like Figure 1 , Figure 4 and Figure 5As shown, a protective frame 2 is detachably mounted on the side wall of the oil cylinder body 1 close to the valve block 11; a slide rail 21 is fixedly connected to the side wall of the protective frame 2 away from the first oil inlet 12; a pair of slide rails 21 are arranged on the side wall of the protective frame 2, and are symmetrically arranged; a pull-out plate 22 is slidably matched inside the pair of slide rails 21; a handle 23 is fixedly connected to the side wall of the pull-out plate 22 away from the protective frame 2; a plurality of groups of second fixing bolts 24 are arranged on the side wall of the pull-out plate 22 close to the handle 23; during operation, the protective frame 2 is fixed to the connection between the oil cylinder body 1 and the valve block 11, and the pull-out plate 22 is pulled by the handle 23, and the pull-out plate 22 is pulled through The second fixing bolt 24 can be fixed to the side wall of the protective frame 2 to control the opening and closing of the pull-out plate 22. When the pull-out plate 22 is opened, the heat inside the protective frame 2 is dissipated. When the pull-out plate 22 is closed, dust or foreign matter is reduced from entering the protective frame 2 to cause the valve block 11 to be dirty. This step controls the opening and closing of the pull-out plate 22 through the setting of the protective frame 2, the slide rail 21, and the pull-out plate 22, thereby improving the heat dissipation capacity of the device and reducing the problem of heating of the oil inside the valve block 11. When the pull-out plate 22 is closed, the inside of the protective frame 2 is sealed, which reduces dust or foreign matter from entering the inside of the protective frame 2 to cause the valve block 11 to be dirty, thereby improving the cleanliness of the surface of the valve block 11.

[0025] like Figure 4 As shown, the side wall of the protective frame 2 away from the pull-out plate 22 is fixedly connected to a fixed frame 3; a pair of fixed frames 3 are arranged on the side wall of the protective frame 2, and are symmetrically arranged; an elastic cloth 31 is fixedly connected to the inner wall of the fixed frame 3; during operation, the elastic cloth 31 is a breathable material, which reduces dust or powder from entering the protective frame 2, causing the valve block 11 to become dirty, and dissipates the heat inside the protective frame 2; this step reduces dust or powder from entering the protective frame 2 by setting the fixed frame 3 and the elastic cloth 31, improves the cleanliness of the surface of the valve block 11, and reduces the overheating of the valve block 11.

[0026] like Figure 4 As shown, the top of the protective frame 2 is fixedly connected with a damping spring 4; multiple groups of the damping springs 4 are arranged on the top of the protective frame 2 and are evenly distributed on the top of the protective frame 2; the tops of the multiple groups of damping springs 4 are fixedly connected with protective covers 41; during operation, the damping spring 4 fixes the protective cover 41 on the top of the protective frame 2, and when foreign objects fall from the top of the protective frame 2, they are blocked by the protective cover 41; this step reduces the damage to the valve block 11 caused by foreign objects falling from the top of the protective frame 2 through the arrangement of the damping spring 4 and the protective cover 41, thereby improving the safety of the valve block 11 when in use.

[0027] like Figure 4As shown, the elastic cloth 31 is fixedly connected with a lifting block 5 away from the middle of the protective frame 2; the outer wall of the lifting block 5 is provided with a buckle groove; during operation, when dust or powder adheres to the side wall of the elastic cloth 31, the lifting block 5 is pulled outward and released, causing the elastic cloth 31 to vibrate, and the dust or powder adhered to the surface of the elastic cloth 31 is bounced off; in this step, by setting the lifting block 5, the lifting block 5 is pulled to bounce off the dust or powder adhered to the surface of the elastic cloth 31, thereby improving the cleanliness of the surface of the elastic cloth 31.

[0028] like Figure 5 As shown, a rubber ring 6 is provided in the middle of the protective frame 2 away from the fixed frame 3; a pair of rubber rings 6 are provided in the middle of the protective frame 2 away from the fixed frame 3, and are symmetrically arranged; during operation, when the valve block 11 is externally connected to a pipeline, the pipeline passes through the rubber ring 6 to reduce the vibration of the protective frame 2 caused by the vibration of the pipeline; this step reduces the influence of the pipeline vibration on the surface components of the protective frame 2 through the setting of the rubber ring 6, thereby improving the stability of the device during use.

[0029] like Figure 5 As shown, a limit block is provided at the end of the slide rail 21 away from the handle 23; during operation, when the pull-out plate 22 slides inside the slide rail 21, the limit block restricts the pull-out plate 22 within the slide rail 21 to reduce the pull-out plate 22 from sliding off the slide rail 21.

[0030] During operation, the valve block 11 is installed on the cylinder body 1. When there is no oil pressure in the control oil circuit, the hydraulic oil flows into the first oil inlet 12 and flows out from the first oil outlet 14 through the oil channel. When there is oil pressure in the control oil circuit, the hydraulic oil flows into the second oil inlet 13 and flows out from the second oil outlet 15 through the oil channel and the one-way cartridge valve 16. The protective frame 2 is fixed at the connection between the cylinder body 1 and the valve block 11. The pull-out plate 22 is pulled by the handle 23. The pull-out plate 22 can be fixed to the side wall of the protective frame 2 by the second fixing bolt 24. The pull-out plate 22 is controlled to be opened and closed. When the pull-out plate 22 is opened, the heat inside the protective frame 2 is dissipated. When the pull-out plate 22 is closed, the powder is reduced. Dust or foreign matter enters the protective frame 2, causing the valve block 11 to become dirty; the elastic cloth 31 is a breathable material, which reduces the dust or powder from entering the protective frame 2, causing the valve block 11 to become dirty, and dissipates the heat inside the protective frame 2; the damping spring 4 fixes the protective cover 41 to the top of the protective frame 2, and when foreign matter falls from the top of the protective frame 2, it is blocked by the protective cover 41; when dust or powder adheres to the side wall of the elastic cloth 31, the lifting block 5 is pulled outward and released, causing the elastic cloth 31 to vibrate, and the dust or powder adhered to the surface of the elastic cloth 31 is bounced off; when the valve block 11 is connected to an external pipeline, the pipeline passes through the rubber ring 6 to reduce the vibration of the pipeline causing the vibration of the protective frame 2.

[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A one-way hydraulically controlled integrated valve for a hydraulic cylinder, comprising a cylinder body (1); characterized in that: A valve block (11) is provided on the top of the oil cylinder body (1); a first fixing bolt (17) is provided on the top of the valve block (11); a plurality of groups of the first fixing bolts (17) are provided on the top of the valve block (11) and are symmetrically arranged; the oil cylinder body (1) and the valve block (11) are fixedly connected by the first fixing bolts (17); a first oil inlet (12) is provided on the side wall of the valve block (11); a second oil inlet (13) is provided on the side wall of the valve block (11) close to the first oil inlet (12); a first oil outlet (14) is provided on the bottom of the valve block (11); a second oil outlet (13) is provided on the bottom of the valve block (11) close to the first oil outlet (14); a second oil outlet (14) is provided on the bottom of the valve block (11) A second oil outlet (15) is provided; a plurality of oil passages are provided inside the valve block (11); the first oil inlet (12) is connected to the first oil outlet (14) through a group of oil passages; the second oil inlet (13) is connected to the second oil outlet (15) through another group of oil passages; a one-way cartridge valve (16) is provided in the middle of the valve block (11); the first oil outlet (14) and the second oil outlet (15) are connected to the inside of the oil cylinder body (1); the first oil inlet (12) and the second oil inlet (13) are externally connected to a control oil circuit; the one-way cartridge valve (16) is connected to the second oil inlet (13) and the second oil outlet (15) through a group of oil passages.

2. A one-way hydraulically controlled integrated valve for a hydraulic cylinder according to claim 1, characterized in that: A protective frame (2) is detachably mounted on the side wall of the oil cylinder body (1) close to the valve block (11); a slide rail (21) is fixedly connected to the side wall of the protective frame (2) away from the first oil inlet (12); a pair of slide rails (21) are arranged on the side wall of the protective frame (2) and are symmetrically arranged; a pull-out plate (22) is slidably fitted inside the pair of slide rails (21); a handle (23) is fixedly connected to the side wall of the pull-out plate (22) away from the protective frame (2); and a plurality of groups of second fixing bolts (24) are provided on the side wall of the pull-out plate (22) close to the handle (23).

3. A one-way hydraulically controlled integrated valve for a hydraulic cylinder according to claim 2, characterized in that: A fixed frame (3) is fixedly connected to the side wall of the protection frame (2) away from the pull-out plate (22); a pair of the fixed frames (3) are arranged on the side wall of the protection frame (2) and are symmetrically arranged; and an elastic cloth (31) is fixedly connected to the inner side wall of the fixed frame (3).

4. A one-way hydraulically controlled integrated valve for a hydraulic cylinder according to claim 3, characterized in that: The top of the protection frame (2) is fixedly connected to a damping spring (4); multiple groups of the damping springs (4) are arranged on the top of the protection frame (2) and are evenly distributed on the top of the protection frame (2); and protective covers (41) are fixedly connected to the tops of the multiple groups of damping springs (4).

5. The one-way hydraulic control integrated valve for hydraulic cylinder according to claim 4, characterized in that: A lifting block (5) is fixedly connected to the middle portion of the elastic cloth (31) away from the protective frame (2); a buckle groove is provided on the outer side wall of the lifting block (5).

6. A one-way hydraulically controlled integrated valve for a hydraulic cylinder according to claim 5, characterized in that: A rubber ring (6) is provided at the middle of the protection frame (2) away from the fixed frame (3); a pair of the rubber rings (6) are provided at the middle of the protection frame (2) away from the fixed frame (3) and are symmetrically arranged.

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