Gate valve opening and closing auxiliary device

Abstract

The utility model relates to the technical field of gate valve opening and closing assisting, and discloses a gate valve opening and closing assisting device. The gate valve opening and closing auxiliary device comprises a rectangular frame, supporting and fixing assemblies are arranged on the left side and the right side of the rectangular frame correspondingly, sliding grooves are formed in the front inner wall and the rear inner wall of the rectangular frame correspondingly, the opposite sides of the sliding grooves are slidably connected with the same movable block, and the movable block extends to the top of the rectangular frame and is matched with the rectangular frame; the top of the movable block is rotationally connected with an inner hexagonal pipe extending to the position below the movable block, and the outer side of the inner hexagonal pipe is fixedly connected with a worm gear located in the movable block. The well is deep and narrow in space, water is accumulated in the well due to water seepage, and personnel are troublesome to operate the gate valve in the well.

Description

Technical Field

[0001] This utility model relates to the field of gate valve opening and closing auxiliary technology, specifically a gate valve opening and closing auxiliary device. Background Technology

[0002] Gate valves are common fluid control devices, typically used to open or close flow in pipelines. Gate valves installed underground are often difficult to operate due to the depth and confined space of the well, and frequent water accumulation caused by seepage. Therefore, an auxiliary device for opening and closing gate valves is proposed to solve these problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a gate valve opening and closing auxiliary device, which has the advantages of operating the gate valve in the well from the surface without the need for personnel to go down into the well and wade through water. It solves the problem that gate valves installed in the well are often difficult to operate due to the depth and narrow space of the well, and water accumulation caused by seepage.

[0005] (II) Technical Solution

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A gate valve opening and closing auxiliary device includes a rectangular frame. Supporting and fixing components are provided on both the left and right sides of the rectangular frame. Sliding grooves are provided on the front and rear inner walls of the rectangular frame. A common movable block is slidably connected to the opposite side of each sliding groove. The movable block extends to the top of the rectangular frame and is adapted to it. An internal hexagonal tube extending below the top of the movable block is rotatably connected. A worm gear located inside the movable block is fixedly connected to the outer side of the internal hexagonal tube. A driving component extending to the left and right sides and meshing with the worm gear is provided inside the movable block. A hexagonal shaft is slidably connected inside the internal hexagonal tube. Limiting holes distributed vertically at equal intervals are provided on the front side of the hexagonal shaft. A circular hole is provided on the front side of the internal hexagonal tube. Limiting pins adapted to the limiting holes are provided in the circular hole. A docking component is provided at the bottom end of the hexagonal shaft. Limiting bolts distributed symmetrically front and back and contacting the top of the rectangular frame are threadedly connected to the top of the movable block.

[0007] The beneficial effects of this utility model are:

[0008] This gate valve opening and closing auxiliary device is held horizontally at the wellhead and positioned above the gate valve inside the well, ensuring the supporting and fixing components are tightly fitted against the well wall. The movable block is pushed to slide within the rectangular frame until the mating component at the lower end of the hexagonal shaft aligns with the valve wheel of the gate valve. Then, the limit bolt is tightened to limit the movable block. The limit pin is removed, and the hexagonal shaft is lowered to engage the mating component with the valve wheel. The limit pin is then inserted back in, and the drive component is rotated using an electric wrench. Since the drive component meshes with the worm gear, it drives the internal hexagonal tube to rotate. This allows the hexagonal shaft to drive the mating component to operate the valve wheel, providing the advantage of operating the gate valve inside the well from the surface without requiring personnel to go down into the well and wade through water.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the support and fixing assembly includes electric push rods and contact blocks. Electric push rods are provided on both the left and right sides of the rectangular frame and are symmetrically distributed front and back. The output ends of adjacent electric push rods are fixedly connected to the same contact block.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the output end of the electric push rod drives the contact block to move to the opposite side until the opposite side of the contact block is in close contact with the well wall, so that the rectangular frame can be fixedly erected at the wellhead.

[0012] Furthermore, the drive assembly includes a worm and a bolt rod. The movable block has a worm inside that meshes with a worm wheel, and bolt rods extending to the left and right sides of the movable block are fixedly connected to the left and right sides of the worm, respectively.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the electric wrench drives the bolt head rod to rotate, which in turn drives the worm gear to rotate. Since the worm gear meshes with the worm wheel, it drives the internal hexagonal tube to rotate.

[0014] Furthermore, the docking assembly includes a disc and locking bolts. The bottom end of the hexagonal shaft is fixedly connected to the disc, and the top of the disc is threaded with locking bolts arranged in a ring array and extending downwards.

[0015] The beneficial effect of adopting the above-mentioned further solution is that by adjusting the position and number of the locking bolts on the disc surface to match the style of the downhole valve wheel, the hexagonal shaft is lowered so that the bottom of the disc contacts the top of the valve wheel and the locking bolts are placed in the gap of the valve wheel. When the hexagonal shaft drives the disc to rotate, the locking bolts then drive the valve wheel to rotate, thus operating the gate valve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2This is a top sectional view of the movable block of this utility model;

[0018] Figure 3 This is an enlarged schematic diagram of the structure at point a of this utility model.

[0019] In the diagram: 1. Rectangular frame; 2. Support and fixing assembly; 201. Electric push rod; 202. Contact block; 3. Slide groove; 4. Movable block; 5. Hexagonal tube; 6. Worm gear; 7. Drive assembly; 701. Worm; 702. Bolt head rod; 8. Hexagonal shaft; 9. Limiting hole; 10. Round hole; 11. Limiting pin; 12. Connecting assembly; 121. Disc; 122. Locking bolt; 13. Limiting bolt. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the embodiments, by Figure 1-3 Provided is a gate valve opening and closing auxiliary device. This utility model includes a rectangular frame 1, with supporting and fixing components 2 on both the left and right sides of the rectangular frame 1. Sliding grooves 3 are formed on the front and rear inner walls of the rectangular frame 1. A common movable block 4 is slidably connected to the opposite side of each sliding groove 3. The movable block 4 extends to the top of the rectangular frame 1 and is adapted to fit the rectangular frame 1. An internal hexagonal tube 5 extending below the top of the movable block 4 is rotatably connected. A worm gear 6 located inside the movable block 4 is fixedly connected to the outer side of the internal hexagonal tube 5. The moving block 4 has a drive assembly 7 extending to its left and right sides and meshing with the worm gear 6 inside. The hexagonal tube 5 is slidably connected to a hexagonal shaft 8. The front side of the hexagonal shaft 8 has vertically equidistant limiting holes 9. The front side of the hexagonal tube 5 has a circular hole 10. The circular hole 10 has limiting pins 11 that are adapted to the limiting holes 9. The bottom end of the hexagonal shaft 8 has a docking assembly 12. The top of the moving block 4 is threaded with limiting bolts 13 that are symmetrically distributed front and back and contact the top of the rectangular frame 1.

[0022] The support and fixing assembly 2 includes an electric push rod 201 and a contact block 202. The left and right sides of the rectangular frame 1 are provided with electric push rods 201 that are symmetrically distributed front and back. The output ends of adjacent electric push rods 201 are fixedly connected to the same contact block 202.

[0023] The output end of the electric push rod 201 drives the contact block 202 to move to the opposite side until the opposite side of the contact block 202 is in close contact with the well wall, so that the rectangular frame 1 can be fixedly erected at the well opening.

[0024] The drive assembly 7 includes a worm 701 and a bolt rod 702. The movable block 4 is provided with a worm 701 that meshes with the worm wheel 6. The left and right sides of the worm 701 are fixedly connected with bolt rods 702 that extend to the left and right sides of the movable block 4 respectively.

[0025] The electric wrench drives the bolt head rod 702 to rotate, which in turn drives the worm gear 701 to rotate. Since the worm gear 701 meshes with the worm wheel 6, it drives the internal hexagonal tube 5 to rotate.

[0026] The docking assembly 12 includes a disk 121 and locking bolts 122. The bottom end of the hexagonal shaft 8 is fixedly connected to the disk 121, and the top of the disk 121 is threaded with locking bolts 122 arranged in a ring array and extending to its lower part.

[0027] By adjusting the position and number of the locking bolts 122 on the surface of the disc 121 to match the style of the downhole valve wheel, the hexagonal shaft 8 is lowered so that the bottom of the disc 121 contacts the top of the valve wheel and the locking bolts 122 are positioned in the gap between the valve wheel. When the hexagonal shaft 8 drives the disc 121 to rotate, the locking bolts 122 then drive the valve wheel to rotate, thus operating the gate valve.

[0028] Working principle:

[0029] Step 1: Hold the device horizontally at the wellhead and above the gate valve inside the well. Make the output end of the electric push rod 201 drive the contact block 202 to move to the opposite side until the opposite side of the contact block 202 is in close contact with the well wall. Then the rectangular frame 1 can be fixedly erected at the wellhead.

[0030] Step 2: Push the movable block 4 to slide within the rectangular frame 1 until the disc 121 at the lower end of the hexagonal shaft 8 is aligned with the valve wheel of the gate valve. Then tighten the limit bolt 13 to limit the movable block 4. Remove the limit pin 11 and lower the hexagonal shaft 8 so that the bottom of the disc 121 contacts the top of the valve wheel and the locking bolt 122 is in the gap of the valve wheel. Insert the limit pin 11 back in.

[0031] Step 3: Drive the bolt head rod 702 to rotate using an electric wrench, which in turn drives the worm gear 701 to rotate. Since the worm gear 701 meshes with the worm wheel 6, it drives the internal hexagonal tube 5 to rotate. The internal hexagonal tube 5 drives the hexagonal shaft 8 to rotate. The hexagonal shaft 8 drives the disc 121 to rotate. Then, the locking bolt 122 drives the valve wheel to rotate, thus operating the gate valve.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gate valve opening and closing auxiliary device, comprising a rectangular frame (1), characterized in that: The rectangular frame (1) is provided with supporting and fixing components (2) on both the left and right sides. The rectangular frame (1) is provided with sliding grooves (3) on both the front and rear inner walls. The sliding grooves (3) are slidably connected to the same movable block (4) on opposite sides. The movable block (4) extends to the top of the rectangular frame (1) and is adapted to the rectangular frame (1). The top of the movable block (4) is rotatably connected to an internal hexagonal tube (5) extending to its lower side. The external side of the internal hexagonal tube (5) is fixedly connected to a worm gear (6) located inside the movable block (4). The interior of the movable block (4) is provided with two extensions extending to its left and right sides. The drive assembly (7) meshes with the worm gear (6) on the side. The hexagonal tube (5) is slidably connected to a hexagonal shaft (8). The front side of the hexagonal shaft (8) is provided with vertically equidistant limiting holes (9). The front side of the hexagonal tube (5) is provided with a round hole (10). The round hole (10) is provided with limiting pins (11) that are adapted to the limiting holes (9). The bottom end of the hexagonal shaft (8) is provided with a docking assembly (12). The top of the movable block (4) is threaded with limiting bolts (13) that are symmetrically distributed front and back and contact the top of the rectangular frame (1).

2. The gate valve opening and closing auxiliary device according to claim 1, characterized in that: The support and fixing assembly (2) includes an electric push rod (201) and a contact block (202). The left and right sides of the rectangular frame (1) are provided with electric push rods (201) that are symmetrically distributed front and back. The output ends of adjacent electric push rods (201) are fixedly connected to the same contact block (202).

3. The gate valve opening and closing auxiliary device according to claim 1, characterized in that: The drive assembly (7) includes a worm (701) and a bolt rod (702). The movable block (4) is provided with a worm (701) that meshes with the worm wheel (6). The left and right sides of the worm (701) are fixedly connected with bolt rods (702) that extend to the left and right sides of the movable block (4) respectively.

4. The gate valve opening and closing auxiliary device according to claim 1, characterized in that: The docking assembly (12) includes a disc (121) and locking bolts (122). The bottom end of the hexagonal shaft (8) is fixedly connected to the disc (121), and the top of the disc (121) is threaded with locking bolts (122) arranged in a ring array and extending to its lower part.

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