Anti-freezing and anti-theft wellhead device

Abstract

The invention discloses an anti-freezing and anti-theft wellhead device which comprises a wellhead body, a first shell and a second shell, and relates to the technical field of oil exploitation equipment. According to the anti-freezing and anti-theft wellhead device, the wellhead body is protected after being connected through the first shell and the second shell, a valve on the wellhead body can be prevented from being stolen, the first shell and the second shell are connected, clamping connection between parts is completed through descending of a vertical rod, and the vertical rod enables a clamping rod to descend under the elastic force action of a spring; after the clamping rod descends, parts between the first shell and the second shell can be clamped, the stability of connection between the first shell and the second shell is improved, the protective cover is arranged on the back of the second shell, the clamping structure can be shielded, lawbreakers cannot easily find the detached part, and the protective cover is forcibly detached, so that the clamping structure is convenient to disassemble. And the forced dismounting alarm switch can be triggered to remind guarding personnel in time.

Description

Technical Field

[0001] The invention relates to the technical field of oil production equipment, in particular to an antifreeze and anti-theft wellhead device. Background Art

[0002] Petroleum, one of the main objects of geological exploration, is a viscous dark brown liquid, known as the "blood of industry". Petroleum is stored in some areas of the upper crust. The main component is a mixture of various alkanes, cycloalkanes and aromatic hydrocarbons. There are two theories about the formation mechanism of petroleum: biological sedimentation and petrochemical oil. The former is more widely accepted, believing that petroleum is formed by organisms in ancient oceans or lakes after a long evolution, and is a biological sedimentation oil, which is non-renewable; the latter believes that petroleum is generated by carbon in the crust itself, has nothing to do with organisms, and is renewable. Petroleum is mainly used as fuel and gasoline, and is also the raw material for many chemical industrial products, such as solutions, fertilizers, pesticides and plastics. According to the requirements of oil production process, the oil field wellhead device and the lateral outlet end of the oil tree are equipped with wellhead process devices, and valves are used to control the flow direction and flow of fluid media in various pipelines to meet the requirements of different production processes.

[0003] The oil wellhead device is a commonly used device at the oil wellhead. At present, this type of oil wellhead device is exposed outdoors. Since the oil wellhead device is connected by flanges and bolts, it is unattended when not in operation, and the integrated valve cannot be protected. It is easy to be damaged by illegal personnel, affecting construction safety. In addition, parts are easy to be lost, resulting in easy damage and theft, affecting oil production. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an antifreeze and anti-theft wellhead device, which solves the problems mentioned in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an antifreeze and anti-theft wellhead device, comprising a wellhead body, a first shell and a second shell, a clamping rod is slidably connected to the back of the inside of the second shell, and a fixing plate is fixedly connected to the top of the clamping rod, a first clamping structure is arranged on the surface of the second shell, and a movable rod is fixedly connected to the bottom of the fixing plate, the bottom end of the movable rod passes through the second shell and extends to the inside of the second shell, a second clamping structure is arranged on the surface of the clamping rod, and a third clamping structure is arranged on the back of the second shell;

[0006] The first clamping structure includes a horizontal plate, a vertical rod and a U-shaped plate, wherein the horizontal plate and the U-shaped plate are respectively fixed to the surfaces of the first shell and the second shell, the surface of the vertical rod is fixedly connected to a limit rod, the bottom end of the limit rod passes through the horizontal plate and extends to the bottom of the horizontal plate, the surface of the vertical rod is sleeved with a circular plate, the surface of the vertical rod is fixedly connected to an annular plate below the circular plate, and the surface of the vertical rod is fixedly connected to a first spring between the opposite sides of the circular plate and the annular plate;

[0007] The second clamping structure includes a connecting plate and an L-shaped plate, one side of the connecting plate is fixedly connected to one side of the first housing, and one side of the L-shaped plate is fixedly connected to the surface of the clamping rod, and the bottom of the L-shaped plate passes through the connecting plate and extends to the bottom of the connecting plate;

[0008] The back sides of the inner walls of the first and second shells are fixedly connected with the first heating tube and the second heating tube respectively, the top and bottom of the movable rod surface are fixedly connected with L-shaped rods, and the bottom end of the L-shaped rod is fixedly connected with a connecting rod.

[0009] Preferably, the top of the vertical rod is fixedly connected to the bottom of the fixed plate, one side of the horizontal plate passes through the U-shaped plate and extends to one side of the U-shaped plate, and the back side of the circular plate is fixedly connected to the surface of the second shell.

[0010] Preferably, the first clamping structures and the second clamping structures are both provided in three groups and are arranged in an equidistant manner.

[0011] Preferably, one side of the connecting plate passes through the second outer shell and extends to the inside of the second outer shell, and a movable groove adapted to the L-shaped plate is provided inside the second outer shell.

[0012] Preferably, the third clamping structure comprises a vertical plate and a positioning plate, the back side of the positioning plate is fixedly connected to the back side of the second shell, and the back side of the vertical plate is fixedly connected to a positioning rod.

[0013] Preferably, one end of the positioning rod passes through the positioning plate and the L-shaped plate and extends to the interior of the L-shaped plate. A card hole matching the positioning rod is opened inside the L-shaped plate. A ring is provided on the surface of the positioning rod. A second spring is fixedly connected to the surface of the positioning rod and located between the side opposite to the ring and the positioning plate.

[0014] Preferably, a protective cover is provided on the back side of the second shell and located outside the third clip-on structure, and alarm switches are fixedly connected to both sides of the protective cover. The alarm switch includes a signal output end plate and a signal receiving end plate, and the signal output end plate is fixed on the protective cover, and the signal receiving end plate is fixed on the back side of the second shell, and a cross bar is fixedly connected to the surface of the signal receiving end plate, one end of the cross bar passes through the signal receiving end plate and extends to the outside thereof, and an alarm is fixedly connected to the back side of the second shell and located on one side of the protective cover.

[0015] Preferably, the surfaces of the first shell and the second shell are both provided with slots adapted to the wellhead body, and one side of the second shell is provided with a circular hole adapted to the wellhead body.

[0016] The present invention provides an antifreeze and anti-theft wellhead device. Compared with the prior art, it has the following beneficial effects: the antifreeze and anti-theft wellhead device is connected with a clamping rod through the sliding connection of the back side of the second shell, and the top of the clamping rod is fixedly connected with a fixing plate, the surface of the second shell is provided with a first clamping structure, and the bottom of the fixing plate is fixedly connected with a movable rod, the bottom end of the movable rod passes through the second shell and extends to the inside of the second shell, the surface of the clamping rod is provided with a second clamping structure, and the back of the second shell is provided with a third clamping structure, the wellhead body is protected after being connected with the first shell and the second shell, and the valve on the wellhead body can be prevented from being stolen, the connection between the first shell and the second shell is completed by the vertical rod descending to complete the clamping between the components, and the vertical rod is caused to descend under the elastic force of the spring, and after the clamping rod descends, the components between the first shell and the second shell are clamped. , improving the stability of the connection between the first shell and the second shell, and a protective cover is arranged behind the second shell to shield the clamping structure, so that criminals will not easily find the removed part, and if the protective cover is forcibly removed, the forced demolition alarm switch will be triggered, which will promptly remind the caretaker, and when the vertical rod descends, the L-shaped rod on the vertical rod will drive the connecting rod to descend, and the connecting rod after descending is just stuck between the first heating tube and the second heating tube, so that one end of the first heating tube and the second heating tube can be tightly connected, so that the first heating tube and the second heating tube can be connected and energized, which is convenient for heating the first shell and the second shell, thereby heating the oil wellhead body, avoiding the oil wellhead body from being frozen when used in cold weather, and making the oil wellhead body suitable for use in different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the structure of the present invention;

[0018] Figure 2 It is a rear view of the three-dimensional structure of the present invention;

[0019] Figure 3is a cross-sectional view of the structure of the present invention;

[0020] Figure 4 is a schematic diagram of the internal structure of the second housing of the present invention;

[0021] Figure 5 It is a rear view of the structure of the present invention;

[0022] Figure 6 is a cross-sectional view of a first housing structure of the present invention;

[0023] Figure 7 For the present invention Figure 1 A partial enlarged view of the middle A;

[0024] Figure 8 For the present invention Figure 2 A partial enlarged view of point B in the middle;

[0025] Fig. 9 For the present invention Figure 4 A partial enlarged view of point C in the middle.

[0026] In the figure: 1-wellhead body, 2-first shell, 3-second shell, 4-clamping rod, 5-first clamping structure, 51-horizontal plate, 52-vertical rod, 53-U-shaped plate, 54-limiting rod, 55-circular plate, 56-annular plate, 57-first spring, 6-fixed plate, 7-movable rod, 8-second clamping structure, 81-connecting plate, 82-L-shaped plate, 83-movable groove, 84-clamping hole, 9-third clamping structure, 91-vertical plate, 92-positioning plate, 93-positioning rod, 94-ring, 95-second spring, 10-first heating tube, 11-second heating tube, 12-L-shaped rod, 13-connecting rod, 14-protective cover, 15-alarm switch, 151-signal output end plate, 152-signal receiving end plate, 16-horizontal rod, 17-alarm, 18-cage, 19-circular hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-9The present invention provides a technical solution: an antifreeze and anti-theft wellhead device, comprising a wellhead body 1, a first shell 2 and a second shell 3, a clamping rod 4 is slidably connected to the back of the inside of the second shell 3, and a fixing plate 6 is fixedly connected to the top of the clamping rod 4, a first clamping structure 5 is arranged on the surface of the second shell 3, and a movable rod 7 is fixedly connected to the bottom of the fixing plate 6, the bottom end of the movable rod 7 passes through the second shell 3 and extends to the inside of the second shell 3, a second clamping structure 8 is arranged on the surface of the clamping rod 4, and a third clamping structure 9 is arranged on the back of the second shell 3;

[0029] The first clamping structure 5 includes a horizontal plate 51, a vertical rod 52 and a U-shaped plate 53. The horizontal plate 51 and the U-shaped plate 53 are respectively fixed to the surfaces of the first shell 2 and the second shell 3. The surface of the vertical rod 52 is fixedly connected to a limit rod 54. The bottom end of the limit rod 54 passes through the horizontal plate 51 and extends to the bottom of the horizontal plate 51. A circular plate 55 is sleeved on the surface of the vertical rod 52. An annular plate 56 is fixedly connected to the surface of the vertical rod 52 and located below the circular plate 55. A first spring 57 is fixedly connected to the surface of the vertical rod 52 and located between the opposite sides of the circular plate 55 and the annular plate 56.

[0030] The second clamping structure 8 includes a connecting plate 81 and an L-shaped plate 82, one side of the connecting plate 81 is fixedly connected to one side of the first housing 2, and one side of the L-shaped plate 82 is fixedly connected to the surface of the clamping rod 4, and the bottom of the L-shaped plate 82 passes through the connecting plate 81 and extends to the bottom of the connecting plate 81;

[0031] The first and second heating tubes 10 and 11 are fixedly connected to the back sides of the inner walls of the first shell 2 and the second shell 3 respectively. The top and bottom of the surface of the movable rod 7 are fixedly connected to an L-shaped rod 12, and the bottom end of the L-shaped rod 12 is fixedly connected to a connecting rod 13.

[0032] Specifically, the first heating tube 10 and the second heating tube 11 are connected via the connecting rod 13 , and the first heating tube 10 and the second heating tube 11 will work to increase the internal temperature of the first shell 2 and the second shell 3 .

[0033] In the present invention, the top of the vertical rod 52 is fixedly connected to the bottom of the fixed plate 6, one side of the horizontal plate 51 passes through the U-shaped plate 53 and extends to one side of the U-shaped plate 53, and the back side of the circular plate 55 is fixedly connected to the surface of the second shell 3.

[0034] Specifically, after the limiting rod 54 is inserted into the transverse plate 51 , the first housing 2 and the third housing 3 can be prevented from being separated.

[0035] In the present invention, the number of the first clamping structures 5 and the number of the second clamping structures 8 are both three, and they are arranged in an equidistant manner.

[0036] Specifically, the number of the first clamping structure 5 and the number of the second clamping structure 8 are both three, which can effectively improve the balance of the connection between the first shell 2 and the second shell 3.

[0037] In the present invention, one side of the connecting plate 81 passes through the second housing 3 and extends to the inside of the second housing 3 . A movable groove 83 matching with the L-shaped plate 82 is provided inside the second housing 3 .

[0038] In the present invention, the third clamping structure 9 includes a vertical plate 91 and a positioning plate 92 . The back of the positioning plate 92 is fixedly connected to the back of the second housing 3 . The back of the vertical plate 91 is fixedly connected to a positioning rod 93 .

[0039] In the present invention, one end of the positioning rod 93 passes through the positioning plate 92 and the L-shaped plate 82 and extends to the interior of the L-shaped plate 82. A card hole 84 adapted to the positioning rod 93 is opened inside the L-shaped plate 82. A ring 94 is sleeved on the surface of the positioning rod 93. A second spring 95 is fixedly connected to the surface of the positioning rod 93 and located between the ring 94 and the side opposite to the positioning plate 92.

[0040] In the present invention, a protective cover 14 is provided on the back side of the second shell 3 and located outside the third clamping structure 9, and an alarm switch 15 is fixedly connected to both sides of the protective cover 14. The alarm switch 15 includes a signal output end plate 151 and a signal receiving end plate 152. The signal output end plate 151 is fixed on the protective cover 14, and the signal receiving end plate 152 is fixed on the back side of the second shell 3. A cross bar 16 is fixedly connected to the surface of the signal receiving end plate 152, and one end of the cross bar 16 passes through the signal receiving end plate 152 and extends to the outside thereof. An alarm 17 is fixedly connected to the back side of the second shell 3 and located on one side of the protective cover 14.

[0041] In the present invention, a slot 18 matching the wellhead body 1 is formed on the surface of the first shell 2 and the second shell 3 , and a round hole 19 matching the wellhead body 1 is formed on one side of the second shell 3 .

[0042] Specifically, the slot 18 is matched with the valve on the wellhead body 1, and the round hole 19 is matched with the oil pipe on the wellhead body 1, so as to facilitate the connection of the pipeline.

[0043] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0044] When in use, the first shell 2 and the second shell 3 are sleeved on the surface of the wellhead body 1, the transverse plate 51 on the first shell 2 will pass through the U-shaped plate 53 on the second shell 3, and the connecting plate 81 on the first shell 2 will be inserted into the interior of the second shell 3, and then the fixing plate 6 will be loosened. Under the elastic force of the first spring 5, the vertical rod 52 will descend, and the descent of the vertical rod 52 will drive the limiting rod 54 to descend, and the limiting rod 54 will be inserted into the transverse plate 51 to limit the transverse plate 51. When the vertical rod 52 descends, the clamping rod 4 will drive the L-shaped plate 82 to descend, and the L-shaped plate 82 descends and is inserted into the connecting plate 81, and then the vertical plate 91 is loosened. Under the elastic force of the second spring 95, the vertical plate 91 causes the positioning rod 93 to pass through the second shell 3 And insert it into the clamping hole 84 on the L-shaped plate 82 to limit the L-shaped plate 82. When the vertical rod 52 descends, the movable rod 7 will drive the L-shaped rod 12 to descend, so that the connecting rod 13 is clamped between the first heating tube 10 and the second heating tube 11, and the first heating tube 10 and the second heating tube 11 are connected, so that the first heating tube 10 and the second heating tube 11 can start to work, increase the temperature inside the first shell 2 and the second shell 3, and prevent the wellhead body 1 from being damaged by freezing. When an outsider steals, the protective cover 14 is forcibly removed, and the signal output terminal plate 151 and the signal receiving terminal plate 152 on the alarm switch 15 are separated, and the alarm 17 is activated to alarm, so that the staff can pass in time.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] 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 antifreeze and anti-theft wellhead device, comprising a wellhead body (1), a first shell (2) and a second shell (3), characterized in that: The back side of the interior of the second shell (3) is slidably connected to a clamping rod (4), and the top end of the clamping rod (4) is fixedly connected to a fixing plate (6), the surface of the second shell (3) is provided with a first clamping structure (5), and the bottom of the fixing plate (6) is fixedly connected to a movable rod (7), the bottom end of the movable rod (7) passes through the second shell (3) and extends to the interior of the second shell (3), the surface of the clamping rod (4) is provided with a second clamping structure (8), and the back side of the second shell (3) is provided with a third clamping structure (9); The first clamping structure (5) comprises a transverse plate (51), a vertical rod (52) and a U-shaped plate (53); the transverse plate (51) and the U-shaped plate (53) are respectively fixed on the surfaces of the first shell (2) and the second shell (3); the surface of the vertical rod (52) is fixedly connected to a limiting rod (54); the bottom end of the limiting rod (54) passes through the transverse plate (51) and extends to the bottom of the transverse plate (51); the surface of the vertical rod (52) is sleeved with a circular plate (55); the surface of the vertical rod (52) is fixedly connected to an annular plate (56) below the circular plate (55); the surface of the vertical rod (52) is fixedly connected to a first spring (57) between the opposite sides of the circular plate (55) and the annular plate (56); The second clamping structure (8) comprises a connecting plate (81) and an L-shaped plate (82), one side of the connecting plate (81) is fixedly connected to one side of the first housing (2), and one side of the L-shaped plate (82) is fixedly connected to the surface of the clamping rod (4), and the bottom of the L-shaped plate (82) passes through the connecting plate (81) and extends to the bottom of the connecting plate (81); The back surfaces of the inner walls of the first shell (2) and the second shell (3) are respectively fixedly connected with a first heating tube (10) and a second heating tube (11); the top and bottom surfaces of the movable rod (7) are both fixedly connected with an L-shaped rod (12); and the bottom end of the L-shaped rod (12) is fixedly connected with a connecting rod (13).

2. The antifreeze and anti-theft wellhead device according to claim 1, characterized in that: The top end of the vertical rod (52) is fixedly connected to the bottom of the fixed plate (6), one side of the horizontal plate (51) passes through the U-shaped plate (53) and extends to one side of the U-shaped plate (53), and the back side of the circular plate (55) is fixedly connected to the surface of the second shell (3).

3. The antifreeze and anti-theft wellhead device according to claim 1, characterized in that: The first clamping structures (5) and the second clamping structures (8) are each provided in three groups and are arranged in an equidistant manner.

4. The antifreeze and anti-theft wellhead device according to claim 1, characterized in that: One side of the connecting plate (81) passes through the second outer shell (3) and extends to the inside of the second outer shell (3); a movable groove (83) adapted to the L-shaped plate (82) is provided inside the second outer shell (3).

5. The antifreeze and anti-theft wellhead device according to claim 1, characterized in that: The third clamping structure (9) comprises a vertical plate (91) and a positioning plate (92), the back surface of the positioning plate (92) is fixedly connected to the back surface of the second housing (3), and the back surface of the vertical plate (91) is fixedly connected to a positioning rod (93).

6. The antifreeze and anti-theft wellhead device according to claim 5, characterized in that: One end of the positioning rod (93) passes through the positioning plate (92) and the L-shaped plate (82) and extends to the inside of the L-shaped plate (82); a clamping hole (84) adapted to the positioning rod (93) is provided inside the L-shaped plate (82); a collar (94) is sleeved on the surface of the positioning rod (93); a second spring (95) is fixedly connected to the surface of the positioning rod (93) and located between the collar (94) and the side opposite to the positioning plate (92).

7. The antifreeze and anti-theft wellhead device according to claim 1, characterized in that: A protective cover (14) is provided on the back of the second housing (3) and located outside the third clamping structure (9); an alarm switch (15) is fixedly connected to both sides of the protective cover (14); the alarm switch (15) comprises a signal output terminal plate (151) and a signal receiving terminal plate (152); the signal output terminal plate (151) is fixed on the protective cover (14); and the signal receiving terminal plate (152) is fixed on the back of the second housing (3); a cross bar (16) is fixedly connected to the surface of the signal receiving terminal plate (152); one end of the cross bar (16) passes through the signal receiving terminal plate (152) and extends to the outside thereof; and an alarm (17) is fixedly connected to the back of the second housing (3) and located on one side of the protective cover (14).

8. The antifreeze and anti-theft wellhead device according to claim 1, characterized in that: The surfaces of the first shell (2) and the second shell (3) are both provided with a slot (18) adapted to the wellhead body (1), and one side of the second shell (3) is provided with a round hole (19) adapted to the wellhead body (1).

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