Anti-theft and oil extraction wellhead device

Abstract

The utility model relates to the technical field of oil extraction well mouths, in particular to anti-theft and oil extraction well mouth device equipment which comprises an oil extraction well mouth body and a connecting rod, a first anti-theft cover and a second anti-theft cover are arranged on the outer side of the oil extraction well mouth body, and connecting rings are fixedly connected to one side of the first anti-theft cover and one side of the second anti-theft cover. The bottom of the first anti-theft cover and the bottom of the second anti-theft cover are fixedly connected with sliding blocks. The anti-theft device has the beneficial effects that a threaded rod and a threaded block are rotated for threaded transmission, the threaded block can drive a connecting rod to rotate, the rotating connecting rod can push a first anti-theft cover and a second anti-theft cover to move synchronously, and when the first anti-theft cover and the second anti-theft cover move, a shielding curtain can be pulled to be unfolded; and the unfolded shielding curtain can shield sun and rain for maintainers to assist maintenance work, so that the anti-theft device at the oil extraction wellhead can be conveniently opened for maintenance through the operation, and the maintenance work can be assisted.

Description

Technical Field

[0001] The utility model relates to the field of oil wellheads, in particular to an anti-theft and oil wellhead device. Background Art

[0002] The oil wellhead refers to the opening of the oil well. It is an important device that connects the wellhead to the underground oil reservoir. The oil wellhead is generally installed in the field. In order to prevent the parts on the oil wellhead from being stolen, the oil wellhead needs to be protected by an anti-theft device.

[0003] For example, publication number CN112780212B discloses an antifreeze and anti-theft oil wellhead device, in which a first protective shell and a second protective shell are respectively provided on the outer sides of the oil wellhead body, so as to facilitate connection and disassembly between the first protective shell and the second protective shell. Since a second rear shell and a plug plate are provided on the outer sides of the plug plate and the rotating plate, it is convenient to protect and shield the structures on the rear sides of the first protective shell and the second protective shell, so that criminals do not know how to remove the first protective shell and the second protective shell from the oil wellhead body. The oil wellhead body can be protected, and the parts on the oil wellhead body are effectively prevented from being stolen.

[0004] After the anti-theft device in the above patent is unlocked, the two sets of protective covers need to be manually separated before the internal oil wellhead can be maintained. After the maintenance is completed, it is not convenient to align the holes when splicing the two sets of protective covers. The operation is cumbersome and takes a lot of manpower and time. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-theft and oil wellhead device to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: an anti-theft and oil wellhead device, comprising: an oil wellhead body and a connecting rod, wherein a first anti-theft cover and a second anti-theft cover are arranged on the outer side of the oil wellhead body,

[0007] One side of the first anti-theft cover and the second anti-theft cover are fixedly connected with a connecting ring, the bottom of the first anti-theft cover and the second anti-theft cover are fixedly connected with a slider, the bottom of the slider is connected to the bottom plate through a ball rolling, the inside of the bottom plate is provided with a sliding groove matching the slider, one side of the top of the bottom plate is movably connected with a threaded rod through a bearing, and the outer side of the threaded rod is threadedly connected with a threaded block.

[0008] Preferably, both sides of the threaded block are movably connected to connecting rods via a rotating shaft, one side of one group of connecting rods is movably connected to the first anti-theft cover via a rotating shaft, and one side of the other group of connecting rods is movably connected to the second anti-theft cover via a rotating shaft.

[0009] Preferably, a storage box is fixedly connected to one side of the top of the first anti-theft cover, a connecting shaft is movably connected to the interior of the storage box via a bearing, a shielding curtain is wrapped around the outer side of the connecting shaft, and a fixing plate is fixedly connected to one side of the shielding curtain.

[0010] Preferably, one side of the fixing plate is fixedly connected to the second anti-theft cover, one end of the connecting shaft is fixedly connected to a coil spring, and one side of the coil spring is fixedly connected to the storage box.

[0011] Preferably, a first fixing block is fixedly connected to the flange on one side of the oil production wellhead body, a connecting rod and a positioning block are fixedly connected to one side of the first fixing block, and a clamping block is fixedly connected to one side of the connecting rod.

[0012] Preferably, one side of the card block is snap-connected with a second fixed block, a card slot matching the card block is provided inside the second fixed block, a positioning slot is provided inside the second fixed block, and the positioning slot is slidably connected to the second fixed block.

[0013] Preferably, a connecting pipe is fixedly connected to one side of the second fixing block, one side of the positioning block is conical, the connecting rod is made of stainless steel, and the clamping block is made of rubber.

[0014] Compared with the prior art, the beneficial effect of the utility model is as follows: when it is necessary to maintain the oil wellhead body in the anti-theft cover, the lock of the first anti-theft cover and the second anti-theft cover is released, and then the threaded rod and the threaded block are rotated for threaded transmission, the threaded block will drive the connecting rod to rotate, and the connecting rod during rotation can push the first anti-theft cover and the second anti-theft cover to move synchronously, and when the first anti-theft cover and the second anti-theft cover move, the shielding curtain will be pulled to unfold, and the unfolded shielding curtain can provide sunshade and rain protection for maintenance personnel, and assist in maintenance work, and the positioning holes on the two groups of second fixed blocks on one side of the connecting pipe are connected with the positioning blocks on the flange on one side of the oil wellhead body, and the conical block at one end of the positioning block can be easily entered into the positioning hole, and after the connection is completed, the hole positions of the flange on the oil wellhead body and the flange on the connecting pipe can be aligned, so that the two can be conveniently locked by bolts.

[0015] The anti-theft and oil wellhead device proposed by the utility model requires that the oil wellhead be connected to the underground oil during oil production. In order to prevent the components on the oil wellhead from being stolen, the first anti-theft cover and the second anti-theft cover need to be docked to cover the oil wellhead body, and then the first anti-theft cover and the second anti-theft cover are fixed by passing the connecting rings on the two groups of anti-theft covers through the lock. When the oil wellhead body in the anti-theft cover needs to be maintained, the first anti-theft cover and the second anti-theft cover are unlocked, and then the threaded rod and the threaded block are rotated for thread transmission. The threaded block drives the connecting rod to rotate, and the connecting rod during rotation can push the first anti-theft cover and the second anti-theft cover to move synchronously. When the first anti-theft cover and the second anti-theft cover move, the shielding curtain will be pulled to be unfolded. The unfolded shielding curtain can provide sunshade and rain protection for maintenance personnel, and assist in the maintenance work. In this way, the anti-theft device of the oil wellhead can be opened for maintenance through the above operation, and the maintenance work can be assisted.

[0016] The anti-theft and oil wellhead device proposed by the utility model needs to be connected to the underground oil through the oil wellhead during oil extraction. In order to facilitate the connection between the oil wellhead body and the connecting pipe, the positioning holes on the two groups of second fixing blocks on one side of the connecting pipe are connected with the positioning blocks on the flange on one side of the oil wellhead body, and the conical block at one end of the positioning block can be conveniently inserted into the positioning hole. After the connection is completed, the hole positions of the flange on the oil wellhead body and the flange on the connecting pipe can be aligned, so that the two can be conveniently locked by bolts. In this way, the oil wellhead body can be conveniently connected to other pipelines through the above operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 This is a three-dimensional cross-sectional schematic diagram of the bottom plate of the utility model;

[0019] Figure 3 It is a three-dimensional cross-sectional schematic diagram of the second anti-theft cover and the first anti-theft cover of the utility model;

[0020] Figure 4 It is a top-down stereoscopic schematic diagram of the utility model;

[0021] Figure 5 This is a schematic cross-sectional top view of the storage box of the utility model;

[0022] Figure 6 It is a three-dimensional schematic diagram of the connecting pipe of the utility model.

[0023] In the figure: 1. Oil well body; 2. First anti-theft cover; 3. Second anti-theft cover; 4. Slider; 5.

[0024] Bottom plate; 6, threaded rod; 7, threaded block; 8, connecting rod; 9, storage box; 10, connecting shaft; 11, shielding curtain; 12, fixing plate; 13, coil spring; 14, first fixing block; 15, connecting rod; 16, clamping block;

[0025] 17. Second fixing block; 18. Positioning block; 19. Connecting pipe; 20. Connecting ring. DETAILED DESCRIPTION

[0026] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] See also Figure 1-Figure 5 The utility model provides a technical solution: an anti-theft and oil wellhead device, comprising: an oil wellhead body 1 and a connecting rod 8, a first anti-theft cover 2 and a second anti-theft cover 3 are arranged on the outer side of the oil wellhead body 1,

[0029] One side of the first anti-theft cover 2 and the second anti-theft cover 3 are fixedly connected with a connecting ring 20, and the bottom of the first anti-theft cover 2 and the second anti-theft cover 3 are fixedly connected with a slider 4, the bottom of the slider 4 is connected to a bottom plate 5 through a ball rolling, and a slide groove matching the slider 4 is provided inside the bottom plate 5, and one side of the top of the bottom plate 5 is movably connected to a threaded rod 6 through a bearing, and the outer side of the threaded rod 6 is threadedly connected to a threaded block 7; both sides of the threaded block 7 are movably connected to connecting rods 8 through a rotating shaft, one side of one group of connecting rods 8 is movably connected to the first anti-theft cover 2 through a rotating shaft, and one side of the other group of connecting rods 8 is movably connected to the first anti-theft cover 2 through a rotating shaft. The side is movably connected to the second anti-theft cover 3 through a rotating shaft; a storage box 9 is fixedly connected to one side of the top of the first anti-theft cover 2, and the interior of the storage box 9 is movably connected to a connecting shaft 10 through a bearing, a shielding curtain 11 is wrapped around the outer side of the connecting shaft 10, and a fixing plate 12 is fixedly connected to one side of the shielding curtain 11; one side of the fixing plate 12 is fixedly connected to the second anti-theft cover 3, one end of the connecting shaft 10 is fixedly connected to a coil spring 13, and one side of the coil spring 13 is fixedly connected to the storage box 9, the threaded rod 6 and the threaded block 7 constitute a threaded transmission structure, and the threaded block 7 constitutes a rotating structure with the connecting rod 8 through the rotating shaft.

[0030] When oil is being extracted, it is necessary to connect the oil wellhead with the underground oil. In order to prevent the components on the oil wellhead from being stolen, it is necessary to dock the first anti-theft cover 2 with the second anti-theft cover 3, cover the oil wellhead body 1, and then pass the lock through the connecting ring 20 on the two sets of anti-theft covers to fix the first anti-theft cover 2 and the second anti-theft cover 3. When it is necessary to maintain the oil wellhead body 1 in the anti-theft cover, the lock of the first anti-theft cover 2 and the second anti-theft cover 3 is released, and then the threaded rod 6 and the threaded block 7 are rotated for threaded transmission. The threaded block 7 will drive the connecting rod 8 to rotate. The connecting rod 8 during rotation can push the first anti-theft cover 2 and the second anti-theft cover 3 to move synchronously, so that the first anti-theft cover 2 and the second anti-theft cover 3 slide in the bottom plate 5 through the slider 4 at the bottom. The ball bearing at the bottom of the slider 4 can reduce the friction between the first anti-theft cover 2 and the second anti-theft cover 3 when they move.

[0031] When the first anti-theft cover 2 and the second anti-theft cover 3 move, the shielding curtain 11 will be pulled to unfold, and the shielding curtain 11 will drive the connecting shaft 10 to rotate, and drive the coil spring 13 to extend. When the first anti-theft cover 2 and the second anti-theft cover 3 are unfolded, the shielding curtain 11 will also unfold to provide sunshade and rain protection for the maintenance personnel and assist in the maintenance work. After the maintenance is completed, the threaded rod 6 can be reversed to drive the first anti-theft cover 2 and the second anti-theft cover 3 to merge, so as to protect the oil wellhead body 1. At this time, the coil spring 13 will be reset, pulling the connecting shaft 10 to rotate, and reeling the shielding curtain 11. In this way, the above operation can facilitate the opening and maintenance of the anti-theft device of the oil wellhead and assist in the maintenance work.

[0032] Embodiment 2

[0033] See also Figure 2 , Figure 3 and Figure 5 A first fixed block 14 is fixedly connected to the flange on one side of the oil wellhead body 1, a connecting rod 15 and a positioning block 18 are fixedly connected to one side of the first fixed block 14, and a clamping block 16 is fixedly connected to one side of the connecting rod 15; a second fixed block 17 is clamped and connected to one side of the clamping block 16, a clamping groove matching the clamping block 16 is provided inside the second fixed block 17, a positioning groove is provided inside the second fixed block 17, and the positioning groove is slidably connected to the second fixed block 17; a connecting pipe 19 is fixedly connected to one side of the second fixed block 17, one side of the positioning block 18 is conical, the connecting rod 15 is made of stainless steel, the clamping block 16 is made of rubber, and the second fixed block 17 and the positioning block 18 constitute a sliding structure.

[0034] When oil is being extracted, it is necessary to connect the oil underground through the oil wellhead. In order to facilitate the connection between the oil wellhead body 1 and the connecting pipe 19, the positioning holes on the two groups of second fixing blocks 17 on one side of the connecting pipe 19 are connected to the positioning blocks 18 on the flange on one side of the oil wellhead body 1. The conical block at one end of the positioning block 18 can be easily inserted into the positioning hole. When connecting, the block 16 on one side of the connecting rod 15 will contact the second fixing block 17, and the stainless steel connecting rod 15 will be deformed. When the block 16 contacts When it reaches the slot in the second fixing block 17, the connecting rod 15 will reset, driving the blocking block 16 to engage with the second fixing block 17. After the rubber blocking block 16 engages with the second fixing block 17, the friction between the two can be increased, making it difficult for the connecting pipe 19 to separate from the oil wellhead body 1. After the docking is completed, the hole positions of the flange on the oil wellhead body 1 and the flange on the connecting pipe 19 can be aligned to facilitate the two to be locked by bolts. In this way, the above operation can facilitate the connection of the oil wellhead body 1 with other pipelines.

[0035] In actual use, the first anti-theft cover 2 is connected with the second anti-theft cover 3 to cover the oil wellhead body 1, and then the lock is passed through the connecting ring 20 on the two sets of anti-theft covers to complete the fixation of the first anti-theft cover 2 and the second anti-theft cover 3. At this time, the two sets of anti-theft covers can protect the internal oil wellhead body 1 to prevent its components from being stolen.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-theft and oil production wellhead device, comprising: An oil wellhead body (1) and a connecting rod (8), characterized in that a first anti-theft cover (2) and a second anti-theft cover (3) are arranged on the outer side of the oil wellhead body (1), A connecting ring (20) is fixedly connected to one side of the first anti-theft cover (2) and the second anti-theft cover (3); a slider (4) is fixedly connected to the bottom of the first anti-theft cover (2) and the second anti-theft cover (3); the bottom of the slider (4) is connected to a bottom plate (5) via a ball rolling mechanism; a slide groove matching the slider (4) is provided inside the bottom plate (5); a threaded rod (6) is movably connected to one side of the top of the bottom plate (5) via a bearing; and a threaded block (7) is threadedly connected to the outer side of the threaded rod (6).

2. The anti-theft and oil wellhead device according to claim 1 is characterized in that: Both sides of the threaded block (7) are movably connected to connecting rods (8) via a rotating shaft, one side of one group of connecting rods (8) is movably connected to the first anti-theft cover (2) via a rotating shaft, and one side of the other group of connecting rods (8) is movably connected to the second anti-theft cover (3) via a rotating shaft.

3. The anti-theft and oil wellhead device according to claim 2 is characterized in that: A storage box (9) is fixedly connected to one side of the top of the first anti-theft cover (2); a connecting shaft (10) is movably connected to the interior of the storage box (9) via a bearing; a shielding curtain (11) is wound around the outer side of the connecting shaft (10); and a fixing plate (12) is fixedly connected to one side of the shielding curtain (11).

4. The anti-theft and oil wellhead device according to claim 3 is characterized by: One side of the fixing plate (12) is fixedly connected to the second anti-theft cover (3), one end of the connecting shaft (10) is fixedly connected to a coil spring (13), and one side of the coil spring (13) is fixedly connected to the storage box (9).

5. The anti-theft and oil wellhead device according to claim 1 is characterized by: A first fixing block (14) is fixedly connected to a flange on one side of the oil wellhead body (1), a connecting rod (15) and a positioning block (18) are fixedly connected to one side of the first fixing block (14), and a clamping block (16) is fixedly connected to one side of the connecting rod (15).

6. The anti-theft and oil wellhead device according to claim 5, characterized in that: One side of the clamping block (16) is clamped and connected with a second fixing block (17); a clamping groove matching the clamping block (16) is provided inside the second fixing block (17); a positioning groove is provided inside the second fixing block (17), and the positioning groove is slidably connected to the second fixing block (17).

7. The anti-theft and oil wellhead device according to claim 6, characterized in that: One side of the second fixing block (17) is fixedly connected to a connecting pipe (19), one side of the positioning block (18) is conical, the connecting rod (15) is made of stainless steel, and the clamping block (16) is made of rubber.

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