Anti-theft and oil production wellhead device

Abstract

This utility model relates to the field of oil wellhead technology, and discloses an anti-theft and oil wellhead device, including an oil wellhead body. The bottom of the oil wellhead body is provided with a symmetrically arranged base plate. The upper surface of the base plate is fixed with symmetrically arranged side plates, and a sliding rod is fixed between the two sets of side plates. Two sets of protective covers are slidably arranged between the two sets of sliding rods to protect the oil wellhead body. Pins are fixed at the four corners of the lower surface of the base plate. An anti-theft locking mechanism for locking the two sets of protective covers is installed on the base plate. This anti-theft and oil wellhead device, in this design, allows the two sets of protective covers to slide quickly and accurately during splicing through the sliding rods and sliding seats, avoiding the cumbersome steps of the original design, making the installation process simpler and more intuitive, and significantly improving the anti-theft performance and enhancing the security of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of oil wellhead technology, specifically to an anti-theft and oil wellhead device. Background Technology

[0002] The wellhead is the opening of an oil well. It is an important piece of equipment that connects the wellhead to the underground oil reservoir. Wellheads are usually installed in the field. To prevent the theft of components on the wellhead, anti-theft devices are needed to protect the wellhead. Existing technology CN112780212B discloses an anti-freezing and anti-theft oil wellhead device. This technology discloses "an oil wellhead body, with a ring fixedly sleeved at the bottom of the oil wellhead body, and a first protective shell and a second protective shell movably connected to the two sides of the top of the ring, located on the outside of the oil wellhead body. This anti-freezing and anti-theft oil wellhead device, through the technical solution of providing a first protective shell and a second protective shell on the outside of the oil wellhead body, has the technical effect of facilitating the protection and shielding of the structure behind the first and second protective shells, making it impossible for criminals to remove the first and second protective shells from the oil wellhead body, thus protecting the oil wellhead body and effectively preventing the theft of parts on the oil wellhead body." While the above design facilitates the protection and shielding of the structures behind the first and second protective shells, the anti-theft measures implemented through the insertion plate, first locking post, rotating plate, and second locking post between the first and second protective shells have a low level of security. Furthermore, the splicing of the two sets of protective covers is inconvenient for quick and easy installation, making the operation cumbersome and time-consuming. Therefore, we propose an anti-theft and oil wellhead device to address these issues. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides an anti-theft and oil wellhead device, which solves the problems of low anti-theft level, inconvenient and inconvenient quick installation when splicing the two sets of protective covers, cumbersome operation, and high manpower and time consumption when using a plate, a first locking post, a rotating plate, and a second locking post between the first and second protective shells.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: an anti-theft and oil wellhead device, comprising an oil wellhead body, wherein the bottom of the oil wellhead body is provided with symmetrically arranged bottom plates; The upper surface of the base plate is fixed with symmetrically arranged side plates, and a sliding rod is fixed between the two sets of side plates; Two sets of protective covers are slidably installed between the two sets of sliding rods to protect the main body of the oil wellhead; Pins are fixed at the four corners of the lower surface of the base plate; The base plate is equipped with an anti-theft locking mechanism that locks the two sets of protective covers. A sliding seat is fixed on the lower surface of the protective cover. The sliding seat has sliding holes that are adapted to the two sets of sliding rods. The sliding seat can slide on the surface of the two sets of sliding rods. The anti-theft locking mechanism includes a support plate fixed to one side of two sets of base plates that are far apart from each other, a movable block that slides inside the support plate, and a screw that is rotatably connected to the top of the movable block via a bearing. The support plate has a threaded hole and a screw threaded connection. A rod is fixed to the top of the moving block. The surface of the rod is provided with scale lines. Rectangular frames are fixed to both sides of the protective cover. A bayonet is opened on one side of the rectangular frame. The bayonet is connected to the cavity of the rectangular frame. A limiting locking pin corresponding to the rectangular frame is fixed to one side of the moving block.

[0005] Preferably, a moving groove adapted to the moving block is provided on one side of the support plate, and the moving block and the support plate are slidably connected through this moving groove. A sliding hole adapted to the rod is provided on the support plate, and the rod and the support plate are slidably connected through this sliding hole. One end of the screw and the rod both extend to the outside of the support plate.

[0006] Preferably, the movable slot is provided with symmetrically arranged limiting rods, the limiting rods are fixedly connected to the support plate, and the movable block has a through hole adapted to the limiting rods. The movable block and the limiting rods are slidably connected through this through hole.

[0007] Preferably, when the two sets of protective covers are closed, the limiting locking pin is located inside the cavity of the rectangular frame. Beneficial effects

[0008] This utility model provides an anti-theft and oil wellhead device. Compared with the prior art, it has the following advantages: The design of this anti-theft and oil wellhead device allows the two sets of protective covers to slide quickly and accurately during splicing by using sliding rods and sliding seats, avoiding the cumbersome steps in the original design. This makes the installation process simpler and more intuitive, and significantly improves the anti-theft performance of the device, enhancing its security. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the two sets of protective covers separated according to this utility model; Figure 3 This is a structural schematic diagram of the protective cover and the connecting parts such as the rectangular frame of this utility model; Figure 4 This is a schematic diagram of the anti-theft locking mechanism of this utility model.

[0010] In the diagram: 101, main body of the oil wellhead; 102, bottom plate; 103, pin; 104, sliding rod; 105, sliding seat; 106, protective cover; 2, anti-theft locking mechanism; 201, support plate; 202, rectangular frame; 203, bayonet; 204, moving block; 205, limit rod; 206, limit locking pin; 207, screw; 208, rod body. Detailed Implementation

[0011] 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.

[0012] like Figure 1 As shown: An anti-theft and oil wellhead device includes an oil wellhead body 101.

[0013] In this implementation plan: The prior art CN112780212B discloses an antifreeze and anti-theft oil wellhead device. To solve the technical problems existing in this prior art, such as the background art disclosed above, "Although the above design is convenient for protecting and shielding the structure behind the first and second protective shells, the anti-theft level is low due to the use of the insert plate, first locking post, rotating plate and second locking post between the first and second protective shells. It is inconvenient to quickly install the two sets of protective shells together, the operation is relatively cumbersome, and it takes a lot of manpower and time." In terms of use, this problem is obviously a real and difficult problem to solve. Therefore, in order to solve this technical problem.

[0014] Furthermore: like Figures 1-4 As shown: Based on the above: the bottom of the oil wellhead body 101 is provided with symmetrically arranged bottom plates 102; The upper surface of the base plate 102 is fixed with symmetrically arranged side plates, and a sliding rod 104 is fixed between the two sets of side plates; Two sets of protective covers 106 are slidably installed between the two sets of sliding rods 104 to protect the main body 101 of the oil wellhead; A sliding seat 105 is fixed on the lower surface of the protective cover 106. The sliding seat 105 has sliding holes that are adapted to the two sets of sliding rods 104. The sliding seat 105 can slide on the surface of the two sets of sliding rods 104. Pins 103 are fixed at the four corners of the lower surface of the base plate 102, and the bottom of the pins 103 is designed with a conical structure. An anti-theft locking mechanism 2 is installed on the base plate 102 to lock the two sets of protective covers 106; The anti-theft locking mechanism 2 includes a support plate 201 fixed to one side of two sets of base plates 102 that are far apart from each other, a movable block 204 that slides inside the support plate 201, and a screw 207 that is rotatably connected to the top of the movable block 204 via a bearing. The threaded hole in the support plate 201 is threadedly connected to the screw 207. The top of the moving block 204 is fixed with a rod 208. The surface of the rod 208 is provided with scale lines. The two sides of the protective cover 106 are fixed with rectangular frames 202. A bayonet 203 is provided on one side of the rectangular frame 202. The bayonet 203 is connected to the cavity of the rectangular frame 202. A limiting locking pin 206 corresponding to the rectangular frame 202 is fixed on one side of the moving block 204. A moving groove adapted to the moving block 204 is provided on one side of the support plate 201. The moving block 204 and the support plate 201 are slidably connected through this moving groove. A sliding hole adapted to the rod 208 is provided on the support plate 201. The rod 208 and the support plate 201 are slidably connected through this sliding hole. One end of the screw 207 and the rod 208 both extend to the outside of the support plate 201. The movable slot is provided with symmetrically arranged limiting rods 205. The limiting rods 205 and the support plate 201 are fixedly connected. The movable block 204 has a through hole that matches the limiting rods 205. The movable block 204 and the limiting rods 205 are slidably connected through this through hole. When the two sets of protective covers 106 are closed, the limit locking pin 206 is located in the cavity of the rectangular frame 202.

[0015] In this implementation plan: When the anti-theft and oil wellhead device is in use, to protect the oil wellhead body 101 from theft, the two sets of protective covers 106 are pushed to move towards each other. The protective covers 106 drive the sliding seat 105 to slide on the sliding rod 104. The protective covers 106 can be limited by the sliding seat 105 and the sliding rod 104, making the protective covers 106 more stable during movement and improving the efficiency of rapid response. The bottom of the base plate 102 is provided with a pin 103, which is inserted into the soil to support and fix the base plate 102. The bottom of the pin 103 is designed with a conical structure to facilitate better insertion into the soil. When the two sets of protective covers 106 are fitted together, during this process, the limiting locking pin 206 passes through the bayonet 203 of the rectangular frame 202 and enters the cavity of the rectangular frame 202. Then, the screw 207 is rotated, which in turn drives the moving block 204 to move upward. The moving block 204 slides on the two sets of limit rods 205. By setting the limit rods 205, the moving block 204 can be limited, making the moving block 204 more stable during movement. As the moving block 204 moves upward, it also drives the limit locking pin 206 to move upward, causing the limit locking pin 206 to slide in the cavity of the rectangular frame 202. At this time, the limit locking pin 206 is misaligned with the bayonet 203 of the rectangular frame 202, and the frame of the rectangular frame 202 blocks the limit locking pin 206, thereby limiting and locking the two sets of protective covers 106. Additionally, when the limit lock pin 206 is located in the cavity of the rectangular frame 202 and corresponds to the bayonet 203, the scale line of the rod 208 is the password value relative to the scale point on the upper surface of the support plate 201. This password value is only known to the staff. For thieves, it is extremely difficult to open the two sets of protective covers 106. When a set of screws 207 is rotated, the moving block 204 causes the limit lock pin 206 on one side to correspond with the bayonet 203, while the limit lock pin 206 on the other side is still misaligned with the bayonet 203. At this time, the two sets of protective covers 106 are still locked. The design of this scheme allows the two sets of protective covers 106 to slide quickly and accurately during splicing by using sliding rods 104 and sliding seats 105, thus avoiding the cumbersome steps in the original design. This makes the installation process simpler and more intuitive, and also greatly improves the anti-theft performance of the device and enhances the security of the equipment.

[0016] The working principle and usage process of this utility model are as follows: When using this anti-theft and oil wellhead device to protect the oil wellhead body 101, the two sets of protective covers 106 are pushed to move closer to each other. The protective covers 106 drive the sliding seat 105 to slide on the sliding rod 104. When the two sets of protective covers 106 are in contact with each other, the limiting locking pin 206 passes through the slot 203 of the rectangular frame 202 and enters the cavity of the rectangular frame 202. Then, the screw 207 is rotated, which drives the moving block 204 to move upward. The moving block 204 slides on the two sets of limiting rods 205. As the moving block 204 moves upward, it also drives the limiting locking pin 206 to move upward, so that the limiting locking pin 206 slides in the cavity of the rectangular frame 202. At this time, the limiting lock pin 206 is misaligned with the bayonet 203 of the rectangular frame 202. The frame of the rectangular frame 202 blocks the limiting lock pin 206, thereby limiting and locking the two sets of protective covers 106. When the limiting lock pin 206 is located in the cavity of the rectangular frame 202 and corresponds to the bayonet 203, the scale line of the rod 208 is the code value relative to the scale point on the upper surface of the support plate 201. This code value is only known to the staff. For thieves, it is extremely difficult to open the two sets of protective covers 106. When a set of screws 207 is rotated, the moving block 204 drives the limiting lock pin 206 on one side to correspond with the bayonet 203, while the limiting lock pin 206 on the other side is still misaligned with the bayonet 203. At this time, the two sets of protective covers 106 are still locked.

[0017] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. An anti-theft and oil wellhead device, comprising an oil wellhead body (101), characterized in that, The bottom of the oil wellhead body (101) is provided with symmetrically arranged bottom plates (102). The upper surface of the base plate (102) is fixed with symmetrically arranged side plates, and a sliding rod (104) is fixed between the two sets of side plates. Two sets of protective covers (106) are slidably disposed between the two sets of sliding rods (104) to protect the main body (101) of the oil wellhead. The bottom surface of the base plate (102) is fixed with pins (103) at the four corners. The base plate (102) is equipped with an anti-theft locking mechanism (2) for locking the two sets of protective covers (106). The lower surface of the protective cover (106) is fixed with a sliding seat (105). The sliding seat (105) has sliding holes that are adapted to the two sets of sliding rods (104). The sliding seat (105) can slide on the surface of the two sets of sliding rods (104). The anti-theft locking mechanism (2) includes a support plate (201) fixed on one side of the two sets of base plates (102) away from each other, a movable block (204) sliding inside the support plate (201), and a screw (207) rotatably connected to the top of the movable block (204) by a bearing. The threaded hole in the support plate (201) is threadedly connected to the screw (207). A rod (208) is fixed to the top of the moving block (204). The surface of the rod (208) is provided with scale lines. A rectangular frame (202) is fixed to both sides of the protective cover (106). A bayonet (203) is provided on one side of the rectangular frame (202). The bayonet (203) is connected to the cavity of the rectangular frame (202). A limiting locking pin (206) corresponding to the rectangular frame (202) is fixed to one side of the moving block (204).

2. The anti-theft and oil wellhead device according to claim 1, characterized in that: The support plate (201) has a moving groove on one side that is adapted to the moving block (204). The moving block (204) and the support plate (201) are slidably connected through this moving groove. The support plate (201) has a sliding hole that is adapted to the rod (208). The rod (208) and the support plate (201) are slidably connected through this sliding hole. One end of the screw (207) and the rod (208) both extend to the outside of the support plate (201).

3. The anti-theft and oil wellhead device according to claim 2, characterized in that: The movable slot is provided with symmetrically arranged limiting rods (205), the limiting rods (205) and the support plate (201) are fixedly connected, and the movable block (204) has a through hole adapted to the limiting rods (205) inside, and the movable block (204) and the limiting rods (205) are slidably connected through this through hole.

4. The anti-theft and oil wellhead device according to claim 3, characterized in that: When the two sets of protective covers (106) are closed, the limiting locking pin (206) is located in the cavity of the rectangular frame (202).

Images