Petroleum mechanical valve with emergency blocking function

Abstract

The application provides a petroleum mechanical valve with an emergency blocking function, and relates to the technical field of valves.The petroleum mechanical valve with the emergency blocking function comprises a valve body, a valve plate, a lifting mechanism and an elastic member.The middle part of the valve body is provided with a cutting groove.The valve plate is slidingly installed in the cutting groove and is used for controlling the communication between the two ends of the valve body.A sliding groove is formed in the valve plate, and the lifting end of the lifting mechanism can slide in the sliding groove, so that the lifting end of the lifting mechanism can make the valve plate lift or drop by abutting against the two ends of the sliding groove.The elastic member is used for applying a downward force to the valve plate.A limiting mechanism is used for clamping the valve plate after the valve plate is lifted to a certain position, so that the valve plate is prevented from continuously moving.When an emergency occurs, the limiting mechanism is opened, the valve plate is completely entered into the cutting groove under the action of the compression spring, and the communication between the two ends of the valve body is cut off.

Description

Technical Field

[0001] This invention relates to the field of valve technology, specifically to a petroleum machinery valve with an emergency shut-off function. Background Technology

[0002] In fluid pipeline systems, valves are control elements. Their main functions are to isolate equipment and pipeline systems, regulate flow, prevent backflow, and regulate and release pressure. Oil transportation requires the cooperation of pipelines and valves to transport oil to various places. Valves enable timely control of oil transportation, making them extremely important in oil transportation.

[0003] In case of an emergency, it is necessary to quickly close the valve to avoid further damage. However, most valves currently on the market are closed by moving the internal valve plate through a handwheel. Although this method is labor-saving, it cannot close the valve quickly, resulting in delayed closure in emergency situations. Summary of the Invention

[0004] The purpose of this invention is to provide an oil machinery valve with an emergency shut-off function, which aims to solve the problem of valves not closing in a timely manner in emergency situations in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: the oil machinery valve with emergency shut-off function comprises:

[0006] The valve body has a cut-off groove in the middle.

[0007] The valve plate is slidably installed in the cut-off groove and is used to control the connection between the two ends of the valve body;

[0008] The lifting mechanism has a sliding groove on the valve plate, and the lifting end of the lifting mechanism can slide in the sliding groove, so that the lifting end of the lifting mechanism can abut against the two ends of the sliding groove to raise and lower the valve plate.

[0009] The elastic element is used to apply a downward force to the valve plate;

[0010] A limiting mechanism is used to lock the valve plate after it has risen to a certain position, thereby preventing the valve plate from moving further.

[0011] A further technical solution of the present invention is that the lifting mechanism includes a mounting frame fixedly installed on the top of the cutting groove, a screw is rotatably installed on the mounting frame, a threaded block is engaged on the screw, and the threaded block is slidably connected to the slide groove.

[0012] A further technical solution of the present invention is that the bottom end of the slide is closed and a limit block is installed at the top end of the slide.

[0013] A further technical solution of the present invention is that a handwheel is installed at the top end of the screw.

[0014] A further technical solution of the present invention is that the limiting mechanism includes a locking block slidably mounted on the cut-off groove, and the valve plate is provided with a locking groove adapted to the locking block. The limiting mechanism also includes a lever mechanism.

[0015] A further technical solution of the present invention is that the lever mechanism includes a pull rod hinged to the cutting groove, a connecting rod hinged to the middle of the pull rod, and the other end of the connecting rod hinged to the end of the locking block located outside the cutting groove.

[0016] A further technical solution of the present invention is that a tension spring is connected between the pull rod and the cutting groove.

[0017] A further technical solution of the present invention is that the elastic element is a compression spring.

[0018] The beneficial effects of this invention are:

[0019] When this invention is used, as the threaded block continues to rise against the limiting block, the compression spring is compressed, thereby causing the valve plate to rise. The cut-off groove is equipped with a limiting mechanism that locks the valve plate after it rises to a certain position, thereby preventing the valve plate from moving further. Then, the screw is rotated in the opposite direction, causing the threaded block to descend to the bottom of the slide groove. In case of an emergency, the limiting mechanism is opened, and the valve plate is completely inserted into the cut-off groove under the action of the compression spring, thereby cutting off the connection between the two ends of the valve body. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0021] Figure 2 This is a cross-sectional view of a specific embodiment of the present invention.

[0022] Figure 3 This is a cross-sectional view from another perspective of a specific embodiment of the present invention.

[0023] In the diagram: 1. Valve body; 11. Flange; 12. Cut-off groove; 13. Valve plate; 131. Slide groove; 132. Limit block; 14. Lifting mechanism; 141. Mounting bracket; 142. Screw; 143. Threaded block; 144. Compression spring; 145. Handwheel; 15. Restriction mechanism; 151. Locking block; 152. Locking groove; 153. Pull rod; 154. Tension spring. Detailed Implementation

[0024] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0025] Example 1:

[0026] like Figure 1As shown, an oil machinery valve with an emergency shut-off function includes a valve body 1, flanges 11 installed at both ends of the valve body 1, a shut-off groove 12 provided in the middle of the valve body 1, a valve plate 13 slidably installed in the shut-off groove 12, and the connection between the two ends of the valve body 1 is controlled by the raising and lowering of the valve plate 13 relative to the shut-off groove 12. A lifting mechanism 14 for controlling the raising and lowering of the valve plate 13 is installed on the shut-off groove 12.

[0027] like Figure 1 and 2 As shown, the lifting mechanism 14 includes a mounting bracket 141 fixedly installed on the top of the cut-off slot 12. A screw 142 is rotatably mounted on the mounting bracket 141, and a threaded block 143 meshes with the screw 142. A handwheel 145 is installed at the top of the screw 142. A sliding groove 131 adapted to the threaded block is opened in the valve plate 13, so that the rotational movement of the screw 142 is converted into the lifting movement of the threaded block 143. The bottom end of the sliding groove 131 is closed, and a limit block 132 is installed at the top end to prevent the threaded block 143 from slipping out. The top end of the valve plate 13 is connected to the mounting bracket 141 by a... When the threaded block 143 continues to rise against the limit block 132, the compression spring 144 is compressed, thereby causing the valve plate 13 to rise. The cut-off groove 12 is equipped with a limiting mechanism 15 that locks the valve plate 13 after it rises to a certain position, thereby preventing the valve plate 13 from moving further. Then, the screw 142 is rotated in the opposite direction, causing the threaded block 143 to descend to the bottom of the slide groove 131. In case of emergency, the limiting mechanism 15 is opened, and the valve plate 13 is completely inserted into the cut-off groove 12 under the action of the compression spring 144, thereby cutting off the connection between the two ends of the valve body 1.

[0028] like Figure 2 and 3 As shown, the limiting mechanism 15 includes a locking block 151 slidably mounted on the cut-off groove 12. A groove 152 adapted to the locking block 151 is provided on the valve plate 13. When the locking block 151 enters the groove 152, the valve plate 13 can no longer rise or fall. A pull rod 153 is hinged to the cut-off groove 12, and a connecting rod is hinged to the middle of the pull rod 153. The other end of the connecting rod is hinged to the end of the locking block 151 located outside the cut-off groove 12. Pulling the other end of the pull rod 153 allows the locking block 151 to slide. This allows the locking block 151 to either disengage from or enter the groove 152. A force-saving lever mechanism is formed between the pull rod 153 and the locking block 151, facilitating the pulling of the locking block 151.

[0029] A tension spring 154 is connected between the pull rod 153 and the cut-off groove 12, so that when the locking block 151 corresponds to the locking groove 152, the locking block 151 will automatically enter the locking groove 152 under the action of the tension spring 154.

Claims

1. A petroleum machinery valve with an emergency shut-off function, characterized in that, include: Valve body (1), with a cut-off groove (12) provided in the middle of the valve body (1); The valve plate (13) is slidably installed in the cut-off groove (12) to control the connection between the two ends of the valve body (1); The lifting mechanism (14) has a sliding groove (131) on the valve plate (13). The lifting end of the lifting mechanism (14) can slide in the sliding groove (131), so that the lifting end of the lifting mechanism (14) can abut against the two ends of the sliding groove (131) to raise and lower the valve plate (13). An elastic element is used to apply a downward force to the valve plate (13); A limiting mechanism (15) is used to lock the valve plate (13) after it rises to a certain position, thereby preventing the valve plate (13) from continuing to move. The limiting mechanism (15) includes a locking block (151) slidably mounted on the cut-off groove (12). The valve plate (13) has a locking groove (152) adapted to the locking block (151). The limiting mechanism (15) also includes a lever mechanism, which includes a pull rod (153) hinged to the cut-off groove (12). The middle part of the pull rod (153) is hinged to... There is a connecting rod, the other end of which is hinged to the end of the locking block (151) located outside the cut-off groove (12). The lifting mechanism (14) includes a mounting bracket (141) fixedly installed on the top of the cut-off groove (12). A screw (142) is rotatably installed on the mounting bracket (141). A threaded block (143) is engaged on the screw (142). The threaded block (143) is slidably connected to the slide groove (131). The bottom end of the slide groove (131) is closed, and a limit block (132) is installed on the top end of the slide groove (131). When the oil machinery valve is in use, when the threaded block (143) continues to rise against the limit block (132), the elastic element is compressed, thereby causing the valve plate (13) to rise. The limiting mechanism (15) prevents the valve plate (13) from continuing to move. When the screw (142) is rotated in the opposite direction, the threaded block (143) descends to the bottom of the slide groove (131). In case of emergency, the limiting mechanism (15) is opened, and the valve plate (13) is completely inserted into the cut-off groove (12) under the action of the elastic element, thereby cutting off the connection between the two ends of the valve body (1).

2. The petroleum machinery valve with emergency shut-off function according to claim 1, characterized in that, A handwheel (145) is mounted on the top of the screw (142).

3. The petroleum machinery valve with emergency shut-off function according to claim 1, characterized in that, The elastic element is a compression spring (144).

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