Oil way gate valve structure

Abstract

The utility model relates to an oil way gate valve structure which is characterized by comprising a valve body, a valve cover, a support, a valve rod, a nut, a hand wheel and a valve plate. The annular cylinder is arranged in the valve body, the three filter screens are arranged in the annular cylinder, fuel oil enters the valve body through the inlet and the three filter screens, impurities in the fuel oil are filtered for multiple times through the three filter screens, the impurities in the fuel oil can be prevented from entering the valve body, the valve body and the valve plate are protected against abrasion, and the service life of the fuel oil is prolonged. And when the filtering effect of the filter screens is reduced, the annular cylinder is detached from the inlet by personnel, so that the three filter screens can be quickly replaced, and the filtering quality of the fuel oil is ensured.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a structure for an oil circuit gate valve. Background Technology

[0002] A gate valve is a valve whose opening and closing element is a gate. Its movement direction is perpendicular to the fluid direction. It can only be fully open or fully closed, and cannot be used for regulation or throttling.

[0003] Gate valves are typically used in the fuel lines of tankers to open or close the fuel lines.

[0004] However, due to the long-term storage of fuel on the refueling ship, impurities may be present in the fuel. These impurities can enter the gate valve structure, causing wear on the valve body and valve, and affecting the normal use of the gate valve. Summary of the Invention

[0005] Therefore, the present invention provides an oil circuit gate valve structure that solves the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides an oil circuit gate valve structure, characterized in that it includes a valve body, a valve cover, a bracket, a valve stem, a nut, a handwheel, and a valve plate;

[0007] The valve plate is disposed within the valve body, which has an inlet and an outlet. The valve cover is disposed at the upper end of the valve body. The valve stem passes through the valve cover and the valve body and is connected to the valve plate. The bracket is disposed at the upper end of the valve cover, and the nut is disposed at the upper end of the bracket. The upper outer wall of the valve stem is provided with external threads. The handwheel is disposed on the nut. A detachable annular cylinder is disposed inside the inlet, and a first filter screen, a second filter screen, and a third filter screen are disposed sequentially inside the annular cylinder.

[0008] The aforementioned beneficial effects are as follows: by setting an annular cylinder inside the valve body, and installing three filter screens inside the annular cylinder, fuel enters the valve body through the inlet and passes through the three filter screens. The three filter screens filter impurities in the fuel multiple times, which can prevent impurities in the fuel from entering the valve body, protect the valve body and valve plate from wear, and when the filtration effect of the filter screens decreases, the personnel can remove the annular cylinder from the inlet and quickly replace the three filter screens, ensuring the filtration quality of the fuel.

[0009] A preferred embodiment is that the mesh size of the first, second, and third filters gradually decreases.

[0010] A preferred embodiment is that an annular plate is provided inside the inlet, and a connecting disc is provided at the end of the annular cylinder, with the connecting disc and the annular plate connected by bolts.

[0011] A preferred embodiment further includes a positioning element, which is disposed on the upper side of the bracket. The positioning element is a screw, and the upper end of the handwheel is provided with multiple positioning holes.

[0012] A preferred embodiment is that a U-shaped plate is provided on one side of the bracket, and a screw is provided at the upper end of the U-shaped plate. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of an oil circuit gate valve according to this utility model;

[0015] Figure 2 This is a schematic diagram of the exploded view of an oil circuit gate valve structure according to this utility model;

[0016] Figure 3 This is a partial side sectional view of the structure of an oil circuit gate valve according to this utility model.

[0017] In the diagram: 10, valve body; 20, valve cover; 30, bracket; 40, valve stem; 50, nut; 60, handwheel; 70, valve plate; 11, inlet; 12, outlet; 80, annular cylinder; 81, first filter screen; 82, second filter screen; 83, third filter screen; 111, annular plate; 811, connecting plate; 812, bolt; 90, positioning element; 91, screw; 92, positioning hole; 93, U-shaped plate. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] like Figures 1 to 3 As shown, this utility model provides an oil circuit gate valve structure, characterized in that it includes a valve body 10, a valve cover 20, a bracket 30, a valve stem 40, a nut 50, a handwheel 60, and a valve plate 70.

[0020] The valve plate 70 is disposed inside the valve body 10, the valve body 10 has an inlet 11 and an outlet 12, the valve cover 20 is disposed at the upper end of the valve body 10, the valve stem 40 passes through the valve cover 20 and the valve body 10 and is connected to the valve plate 70, the bracket 30 is disposed at the upper end of the valve cover 20, the nut 50 is disposed at the upper end of the bracket 30, the upper outer wall of the valve stem 40 is provided with external threads, the handwheel 60 is disposed on the nut 50, a detachable annular cylinder 80 is disposed inside the inlet 11, and a first filter screen 81, a second filter screen 82 and a third filter screen 83 are sequentially disposed inside the annular cylinder 80.

[0021] During operation, the operator rotates the handwheel 60, causing the nut 50 to rotate. The nut 50 engages with the external thread, causing the valve stem 40 to move up and down. The upward movement of the valve stem 40 causes the valve plate 70 to move up, thus opening the gate valve. Fuel enters the valve body 10 from the inlet 11 after being filtered by three filter screens and exits from the outlet 12. When it is necessary to close the valve, the valve stem 40 moves down, causing the valve plate 70 to move down, thus closing the gate valve. The three filter screens filter impurities in the fuel multiple times, preventing impurities from entering the valve body 10 and protecting the valve body 10 and valve plate 70 from wear. When the filtration effect of the filter screens decreases, the operator can remove the annular cylinder 80 from the inlet 11 to quickly replace the three filter screens, ensuring the filtration quality of the fuel.

[0022] Preferably, the mesh size on the first filter screen 81, the second filter screen 82, and the third filter screen 83 is gradually reduced.

[0023] By gradually decreasing the mesh size of the three filter screens, impurities of different sizes in the fuel can be filtered out, further ensuring the filtration quality.

[0024] Preferably, an annular plate 111 is provided inside the inlet 11, and a connecting disc 811 is provided at the end of the annular cylinder 80. The connecting disc 811 and the annular plate 111 are connected by bolts 812.

[0025] The operator unscrews the bolts 812 one by one. Then, the operator pulls the annular cylinder 80 outward, and the annular cylinder 80 moves out of the inlet 11. At this time, the three filter screens can be quickly replaced. After the replacement is completed, the operator moves the annular cylinder 80 back into the inlet 11 and makes the connecting plate 811 abut against the annular plate 111. Then, the annular plate 111 and the connecting plate 811 are connected together by the bolts 812.

[0026] Preferably, the device further includes a positioning element 90, which is disposed on the upper side of the bracket 30. The positioning element 90 is a screw 91, and the upper end of the handwheel 60 is provided with multiple positioning holes 92.

[0027] When the gate valve is opened or closed, in order to prevent the handwheel 60 from rotating under the action of external force and affecting the normal use of the gate valve, after the gate valve is opened or closed, the personnel can turn the screw 91 downward so that the screw 91 enters the corresponding positioning hole 92. This can prevent the handwheel 60 from rotating under the action of external force, making the gate valve more stable in use.

[0028] Preferably, a U-shaped plate 93 is provided on one side of the bracket 30, and a screw 91 is provided at the upper end of the U-shaped plate 93.

[0029] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. An oil passage gate valve structure characterized by comprising: The valve body (10), the valve cover (20), the bracket (30), the valve rod (40), the nut (50), the hand wheel (60) and the valve plate (70) are included. The valve plate (70) is arranged in the valve body (10), the valve body (10) has an inlet (11) and an outlet (12), the valve cover (20) is arranged at the upper end of the valve body (10), the valve rod (40) is connected with the valve plate (70) through the valve cover (20) and the valve body (10), the bracket (30) is arranged at the upper end of the valve cover (20), the nut (50) is arranged at the upper end of the bracket (30), the outer wall of the upper end of the valve rod (40) is provided with external threads, the hand wheel (60) is arranged on the nut (50), the detachable annular cylinder (80) is arranged in the inlet (11), the first filter screen (81), the second filter screen (82) and the third filter screen (83) are arranged in the annular cylinder (80) in sequence.

2. The oil passage gate valve structure according to claim 1, characterized by The mesh holes of the first filter screen (81), the second filter screen (82) and the third filter screen (83) are gradually reduced.

3. The oil passage gate valve structure according to claim 1, characterized by The annular plate (111) is arranged in the inlet (11), the end of the annular cylinder (80) is provided with the connecting disc (811), and the connecting disc (811) and the annular plate (111) are connected through the bolt (812).

4. The oil passage gate valve structure according to claim 1, characterized by The positioning member (90) is further included, the positioning member (90) is arranged on the upper side of the bracket (30), the positioning member (90) is the screw rod (91), and the upper end of the hand wheel (60) is provided with a plurality of positioning holes (92).

5. The oil passage gate valve structure according to claim 1, characterized by One side of the bracket (30) is provided with the U-shaped plate (93), and the upper end of the U-shaped plate (93) is provided with the screw rod (91).

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