Anti-freezing and anti-theft oil well head device

Abstract

This utility model relates to the field of oil extraction technology, specifically disclosing an anti-freezing and anti-theft oil wellhead device. The device includes: a bottom ring fixedly installed on the outer wall of the wellhead; a fixing ring threaded to the upper end of the bottom ring; a functional cover snapped into the inner side of the fixing ring; a wellhead through a well cover; a fixing plate connected to the upper end of the well cover by a fixing bolt; two electrode plates elastically connected to the end of the functional cover near the fixing plate; an insert plate fixedly installed on the upper end of the fixing plate; the insert plate is inserted between the two electrode plates and connected to the functional cover via the insert plate; the fixing plate is connected to the wellhead by a fixing bolt; and the bottom ring is connected to the wellhead by a fixing bolt. The advantages of this utility model are: by installing the well cover and fixing plate inside the functional cover and bottom ring, the functional cover can be removed by rotating the fixing ring; the two electrode plates contacting each other trigger an alarm to alert workers to prevent theft; and anti-freezing is achieved through an electric heating element.

Description

Technical Field

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

[0002] Petroleum is a viscous, dark brown liquid, often referred to as the "blood of industry." Petroleum extraction refers to the process of digging and extracting oil from areas where it is stored. During extraction, oil and gas flow from the reservoir to the bottom of the well and then rise from the bottom to the wellhead.

[0003] Chinese patent CN210685942U discloses an anti-theft device for oil wellheads, including a first mounting frame, a first mounting plate fixed to the bottom of the first mounting frame, mounting holes on the first mounting plate, a second mounting frame fixed on the first mounting frame, a mounting groove on the inner wall of the second mounting frame, a bearing seat fixed in the mounting groove, a second mounting plate fixed to the side wall of the second mounting frame, a motor fixed on the second mounting plate, a motor drive shaft fixed to one end of a rotating shaft, the other end of the rotating shaft passing through the second mounting frame and connected to the bearing seat, a first through hole on the second mounting frame that mates with the rotating shaft, the rotating shaft being connected to one end of a steel rope, and the other end of the steel rope being connected to a housing. The technical solution provided by this utility model can effectively overcome the defects of the prior art, such as lack of flexible anti-theft function, lack of shock absorption and buffer function, and inconvenience of use.

[0004] However, the aforementioned patents are quite large overall, making them inconvenient to adjust and move during use. Consequently, they require other large machinery to adjust their position before and after use, making them inconvenient to use overall. Utility Model Content

[0005] The purpose of this invention is to provide an antifreeze and anti-theft oil wellhead device to solve the problem of inconvenience in use mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an antifreeze and anti-theft oil wellhead device, comprising: a bottom ring fixedly installed on the outer wall of the wellhead; a fixing ring threadedly connected to the upper end of the bottom ring; a functional cover snapped into the inner side of the fixing ring; the wellhead passing through the well cover; a fixing plate connected to the upper end of the well cover by a fixing bolt; two electrode plates elastically connected to the end of the functional cover near the fixing plate; an insert plate fixedly installed on the upper end of the fixing plate; the insert plate inserted between the two electrode plates and connected to the functional cover through the insert plate; the fixing plate connected to the wellhead by a fixing bolt; the bottom ring connected to the wellhead by a fixing bolt; and an alarm electrically connected to the electrode plates through wires.

[0007] Preferably, the manhole cover is convex, with its lower end inserted into the manhole opening. The inner side of the manhole opening is sealed to the manhole cover. A fixing plate is fixedly connected to the upper end of the manhole cover. An insert plate is located at the middle position of the upper end of the fixing plate. A guide slope is provided at the upper end of the insert plate. The threaded end of a fixing bolt passes through the fixing plate and the manhole opening in sequence and is threadedly connected to both.

[0008] Preferably, an alarm is fixedly connected inside the functional cover, a solar panel is fixedly connected to the surface of the functional cover, a fixing ring is rotatably connected to the side of the functional cover, and a heating tube is fixedly connected to the lower side of the functional cover.

[0009] Preferably, two springs are fixedly connected at the middle position of the lower end of the functional cover, and an electrode plate is fixedly connected to the other end of each of the two springs. Guide rods are slidably connected to both sides of the two electrode plates, and the two ends of the guide rods are fixedly connected to the functional cover. The springs are in a compressed state, and the electrode plates are electrically connected to the alarm.

[0010] Preferably, a threaded groove is provided on one side of the bottom ring, and the threaded end of the second fixing bolt passes through the wellhead and the bottom ring in sequence and is threadedly connected to both.

[0011] Preferably, the lower end of the functional cover has a slot, the fixing plate is inserted into the lower end of the functional cover through the slot, the length of the fixing plate is equal to the diameter of the functional cover, the fixing ring is threadedly connected to the threaded groove, and the lower end of the electrode plate is an inclined surface.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by installing the manhole cover and the fixing plate inside the functional cover and the bottom ring, the functional cover must be opened before the manhole cover is opened. The functional cover can be removed by rotating the fixing ring. When the functional cover is removed, the insert plate will detach from the electrode plate, and then the two electrode plates will quickly come into contact with each other. At this time, the alarm is triggered to alert the staff, thus preventing theft. The heating element can prevent freezing. The device is small in size and easy to disassemble and adjust. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0015] Figure 3 This is a bottom view of the functional cover of this utility model;

[0016] Figure 4 This is a top view of the bottom ring of this utility model;

[0017] Figure 5 This is a schematic diagram showing the connection between the electrode plate and the insertion plate of this utility model.

[0018] In the diagram: 1. Wellhead; 2. Well cover; 3. Fixing plate; 4. Insert plate; 5. Slot; 6. Functional cover; 7. Fixing ring; 8. Bottom ring; 9. Spring; 10. Electrode plate; 11. Guide rod; 12. Heating tube; 13. Alarm; 14. Solar panel; 15. Threaded groove; 16. Fixing bolt one; 17. Fixing bolt two. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Please see Figures 1-5 This utility model provides a technical solution: an antifreeze and anti-theft oil wellhead device, comprising: a convex well cover 2, the lower end of which is inserted into a wellhead 1, the inner side of which is sealed to the well cover 2, thereby sealing the wellhead 1 and preventing the leakage of oil and other substances; a fixing plate 3 is fixedly connected to the upper end of the well cover 2; an insert plate 4 is located at the middle position of the upper end of the fixing plate 3, facilitating the separation of the electrode plates 10; a guide slope is provided at the upper end of the insert plate 4, allowing the insert plate 4 to be quickly inserted between the two electrode plates 10; and a threaded fixing bolt 16. The end passes through the fixing plate 3 and the well opening 1 in sequence and is threaded to both. At this time, the position of the well cover 2 is fixed and cannot be moved. An alarm 13 is fixedly connected inside the functional cover 6. When the alarm 13 is powered on, it will produce a loud alarm sound. A solar panel 14 is fixedly connected to the surface of the functional cover 6. The solar panel 14 can charge the battery inside the functional cover 6, and then the battery can power the electronic components inside the functional cover 6. A fixing ring 7 is rotatably connected to the side of the functional cover 6. A heating tube 12 is fixedly connected to the lower side of the functional cover 6. The heating tube 12 can heat the inside, thereby preventing the well opening 1 from freezing.

[0021] When in operation, the entire system can supply power to the functional cover 6 and its internal components through the solar panel 14, the heating tube 12 can prevent freezing, and the alarm 13 can prevent theft.

[0022] Two springs 9 are fixedly connected to the middle position of the lower end of the functional cover 6. The other end of each spring 9 is fixedly connected to an electrode plate 10. The springs 9 facilitate pushing the electrode plate 10. Guide rods 11 are slidably connected to both sides of the two electrode plates 10. The guide rods 11 guide and limit the movement of the electrode plates 10. The two ends of the guide rods 11 are fixedly connected to the functional cover 6. The springs 9 are in a compressed state, so that the two electrode plates 10 can quickly contact each other after the insert plate 4 is removed. The electrode plates 10 are electrically connected to the alarm 13 through wires. When the two electrode plates 10 contact each other, the alarm 13 is powered on and starts to work.

[0023] The insertion plate 4 can control whether the two electrode plates 10 are in contact, thereby controlling whether the alarm 13 works and triggers an alarm.

[0024] A threaded groove 15 is provided on one side of the bottom ring 8. The threaded end of the fixing bolt 17 passes through the wellhead 1 and the bottom ring 8 in sequence and is threadedly connected to both. At this time, the position of the bottom ring 8 is fixed and not easy to shake. A slot 5 is provided at the lower end of the functional cover 6. The slot 5 helps to ensure that the installation position is correct, so that the insert plate 4 can be inserted between the two electrode plates 10 to separate them. The fixing plate 3 is inserted into the lower end of the functional cover 6 through the slot 5. The length of the fixing plate 3 is equal to the diameter of the functional cover 6. The fixing ring 7 is threadedly connected to the threaded groove 15. It can be quickly fixed by rotating the fixing ring 7. The lower end of the electrode plate 10 is an inclined surface, which facilitates the insertion of the insert plate 4.

[0025] During installation, align the slot 5 with the fixing plate 3. At this time, the insert plate 4 can be inserted between the two electrode plates 10 to force them to separate. Then rotate the fixing ring 7 so that the fixing ring 7 is threadedly connected to the threaded groove 15. The side of the function cover 6 is fixed with a protrusion. The fixing ring 7 fixes the position of the function cover 6 by pressing the protrusion.

[0026] In actual use, the whole unit is installed on the wellhead 1 and fixed by the flange of the wellhead 1. When disassembly is required, first rotate the fixing ring 7 to disengage it from the threaded groove 15. At this time, the function cover 6 can be taken out upward. Then, the fixing bolt 16 and fixing bolt 27 can be removed in sequence to disassemble other parts and make adjustments.

[0027] 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 device for preventing freezing and illegal oil wellhead extraction, characterized in that: The antifreeze and anti-theft oil wellhead device includes: a bottom ring (8) fixedly installed on the outer wall of the wellhead (1), a fixing ring (7) threadedly connected to the upper end of the bottom ring (8), a functional cover (6) snapped into the inner side of the fixing ring (7), the wellhead (1) is connected to the well cover (2), the upper end of the well cover (2) is connected to the fixing plate (3) by fixing bolt one (16), the functional cover (6) is elastically connected to two electrode plates (10) at one end near the fixing plate (3), the upper end of the fixing plate (3) is fixedly installed with a plug plate (4), the plug plate (4) is inserted between the two electrode plates (10) and connected to the functional cover (6) through the plug plate (4), the fixing plate (3) is connected to the wellhead (1) by fixing bolt one (16), the bottom ring (8) is connected to the wellhead (1) by fixing bolt two (17), and the electrode plate (10) is electrically connected to an alarm (13) through a wire.

2. The antifreeze and anti-theft oil wellhead device according to claim 1, characterized in that: The manhole cover (2) is convex. The lower end of the manhole cover (2) is inserted into the manhole opening (1). The inner side of the manhole opening (1) is sealed to the manhole cover (2). The upper end of the manhole cover (2) is fixedly connected to a fixing plate (3). The insert plate (4) is located at the middle position of the upper end of the fixing plate (3). The upper end of the insert plate (4) is provided with a guide slope. The threaded end of the fixing bolt (16) passes through the fixing plate (3) and the manhole opening (1) in sequence and is threadedly connected to both.

3. The antifreeze and anti-theft oil wellhead device according to claim 1, characterized in that: An alarm (13) is fixedly connected inside the functional cover (6), a solar panel (14) is fixedly connected to the surface of the functional cover (6), a fixing ring (7) is rotatably connected to the side of the functional cover (6), and a heating tube (12) is fixedly connected to the lower side of the functional cover (6).

4. The antifreeze and anti-theft oil wellhead device according to claim 3, characterized in that: Two springs (9) are fixedly connected at the middle position of the lower end of the functional cover (6). The other end of each spring (9) is fixedly connected to an electrode plate (10). Guide rods (11) are slidably connected to both sides of the two electrode plates (10). The two ends of the guide rods (11) are fixedly connected to the functional cover (6). The springs (9) are in a compressed state. The electrode plates (10) are electrically connected to the alarm (13).

5. The antifreeze and anti-theft oil wellhead device according to claim 1, characterized in that: The bottom ring (8) has a threaded groove (15) on one side, and the threaded end of the fixing bolt (17) passes through the wellhead (1) and the bottom ring (8) in sequence and is threadedly connected to both.

6. The antifreeze and anti-theft oil wellhead device according to claim 4, characterized in that: The lower end of the functional cover (6) is provided with a slot (5), and the fixing plate (3) is inserted into the lower end of the functional cover (6) through the slot (5). The length of the fixing plate (3) is equal to the diameter of the functional cover (6). The fixing ring (7) is threadedly connected to the threaded groove (15). The lower end of the electrode plate (10) is an inclined surface.

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