Wellhead protection device

Abstract

The utility model relates to the technical field of well mouth theft prevention, in particular to a well mouth protection device which comprises a protection cover and a base, and the protection cover is fixed above a well mouth through the base. One end of the protective cover is communicated with a well mouth, a first outlet and a second outlet are formed in the surface of the protective cover, a top cover is arranged at the first outlet, covers the first outlet and is detachably connected with the protective cover through a first lock catch, and the first lock catch is located in the protective cover; a side door is arranged at the second outlet and covers the second outlet, a first groove is formed in the joint of the side door and the protective cover, a second lock catch is arranged in the first groove, and the side door is detachably connected with the protective cover through the second lock catch. The protection device comprises the first lock catch arranged inside the protection device and the second lock catch hidden outside the protection device, so that the protection device cannot be easily opened from the outside, the underground environment and underground water monitoring equipment can be protected, and the anti-theft effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of wellhead anti-theft, in particular to a wellhead protection device. Background Art

[0002] To obtain timely groundwater data, geological surveys typically drill a well in the predicted area, install monitoring equipment at the wellhead, and place sensors downhole. The data is then transmitted manually or via wireless communication. However, most wellheads currently used for groundwater monitoring lack protective equipment, making the environment inside the well susceptible to interference from external natural or human factors, impacting the accuracy of groundwater parameters in the area. Furthermore, since these groundwater monitoring devices are relatively expensive, they are often stolen when left in the field, hindering monitoring efforts. Currently, a small number of wellheads are equipped with protective equipment. These protective equipment housings and covers are typically connected by screws and hexagonal nuts. If the hexagonal nuts are exposed or poorly concealed, they can be easily removed with tools such as screwdrivers, resulting in poor anti-theft effectiveness.

[0003] Therefore, there is an urgent need for a wellhead anti-theft device with good anti-theft effect. Summary of the Invention

[0004] In order to solve the problem that the existing wellhead protection equipment is easily opened from the outside and cannot well protect the well environment and groundwater monitoring equipment, the utility model provides a wellhead protection device, including a first lock buckle arranged inside the protection device and a second lock buckle hidden outside the device, so that the protection device cannot be easily opened from the outside, thereby protecting the underground environment and groundwater monitoring equipment, and having a good anti-theft effect.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A wellhead protection device comprises a protective cover and a base. The protective cover is fixed above the wellhead through the base, and the base and the protective cover are bolted together.

[0007] One end of the shield is connected to the wellhead, and the shield surface has a first outlet and a second outlet. A top cover is provided at the first outlet, covering the first outlet and removably connected to the shield via a first lock, which is located inside the shield. A side door is provided at the second outlet, covering the second outlet and having a first groove formed at its connection with the shield. A second lock is provided in the first groove, and the side door is removably connected to the shield via the second lock. The second lock is concealed and can only be opened after the second lock is opened, providing dual security for the wellhead and providing more comprehensive protection.

[0008] Furthermore, the shield is cylindrical, with a first outlet formed on the top of the shield and a second outlet formed on the side of the shield. The first outlet leads directly to the wellhead, and the second outlet is used to expose the first lock buckle.

[0009] Furthermore, the side door is hinged to the shield, and a plurality of first grooves are provided on the other side of the side door away from the hinged side. The second lock catch is hidden in the first groove and cannot be directly opened using existing tools.

[0010] Furthermore, the outer periphery of the protective cover is provided with a plurality of ventilation windows, through which air enters the protective cover.

[0011] Furthermore, the first lock is a buckle, and a plurality of buckles are provided between the top cover and the shield, wherein the positioning member of the buckle is fixed to the inner wall of the top cover, and the locking member of the buckle is correspondingly provided on the inner wall of the shield. The buckle is used to fix the top cover and the shield.

[0012] Furthermore, the second lock catch is an anti-theft bolt, which passes through the side door and is threadedly connected to the shield, and the end of the anti-theft bolt is lower than the notch of the first groove, so that the anti-theft bolt cannot be easily damaged.

[0013] Furthermore, the anti-theft bolt includes a threaded shaft and a bolt head. The bolt head is cylindrical and has a second groove circumferentially disposed near the shaft. When viewed from outside the device, only the smooth cylindrical bolt head is visible, making the anti-theft bolt difficult to remove.

[0014] Furthermore, two second grooves are symmetrically arranged on the bolt head, and the second grooves are rectangular and are used to contact a special tool for removing the anti-theft bolt.

[0015] Furthermore, the first groove is cylindrical, and the gap between the first groove and the anti-theft bolt is smaller than the diameter of the screw, so that existing tools cannot be inserted between the first groove and the anti-theft bolt, further enhancing the anti-theft performance of the protective device.

[0016] Through the above technical solution, the beneficial effects of the utility model are:

[0017] The utility model is provided with a protective cover connected to the wellhead, with a first outlet and a second outlet provided on the protective cover, a top cover provided at the first outlet, and a side door provided at the second outlet. The top cover is connected to the protective cover by a first lock hidden inside the device, and the side door is connected to the protective cover by a second lock hidden in a first groove. Only by using a special tool to open the second lock can the side door be opened, and then the first lock can be opened. The utility model provides double security, hiding the lock that is easily opened or damaged, making it difficult for outsiders to open it easily, greatly improving the anti-theft effect of the wellhead protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is an exploded view of the utility model;

[0020] Figure 3 This utility model Figure 1 A magnified view of the details at center A;

[0021] Figure 4 This utility model Figure 2 A magnified view of the detail at point B in the middle;

[0022] Figure 5 This is a schematic structural diagram of the utility model anti-theft bolt;

[0023] Figure 6 This is a structural diagram of the utility model's special disassembly tool;

[0024] The numbers in the accompanying drawings are: 1 for the protective cover, 11 for the first outlet, 12 for the second outlet, 13 for the air vent, 2 for the base, 3 for the top cover, 4 for the side door, 41 for the first groove, 5 for the first lock, 51 for the positioning member, 52 for the locking member, 6 for the second lock, 61 for the bolt head, 62 for the screw, 63 for the second groove, 7 for the special tool, 71 for the clamp arm half, 72 for the sleeve, and 73 for the handle. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0026] like Figures 1 to 6 As shown, this embodiment provides a wellhead protection device, which includes a shield 1 and a base 2. The shield 1 is fixed above the wellhead through the base 2; the base 2 is cast by concrete, and embedded bolts are provided in the base 2. The shield 1 and the base 2 are bolted together, and the top of the embedded bolt passes through the bottom surface of the shield 1 and extends into the interior of the shield 1 and is fixed by a nut.

[0027] One end of the protective cover 1 is connected to the wellhead. The surface of the protective cover 1 has a first outlet 11 and a second outlet 12. A top cover 3 is provided at the first outlet 11. The top cover 3 covers the first outlet 11 and is detachably connected to the protective cover 1 via a first lock 5. The first lock 5 is located inside the protective cover 1. A side door 4 is provided at the second outlet 12. The side door 4 covers the second outlet 12 and is provided with a first groove 41 at the connection with the protective cover 1. A second lock 6 is provided in the first groove 41. The side door 4 is detachably connected to the protective cover 1 via the second lock 6. The first lock 5 is hidden inside the protective cover 1, and the second lock 6 is hidden in the first groove 41.

[0028] The protective cover 1 is cylindrical, with a first outlet 11 defined at the top and a second outlet 12 defined on the side. A top cover 3 is disposed over the first outlet 11. The top cover 3 is cylindrical, with its edge extending downward and surrounding the protective cover by approximately 115 mm, providing a pry-proof function and preventing rainwater from flowing into the interior of the protective cover 1.

[0029] A side door 4 is provided at the second outlet 12, and the side door 4 is hinged to the protective cover 1. A plurality of first grooves 41 are provided on the other side of the side door 4 away from the hinged side, and a second lock buckle 6 is provided in the first groove 41. Only by opening the second lock buckle 6 can the side door 4 be opened, and then the second lock buckle 6 hidden in the protective cover 1 can be opened, the top cover 3 can be removed, and the wellhead can be exposed.

[0030] A plurality of ventilation windows 13 are provided on the periphery of the protective cover 1. The ventilation windows 13 are convex on the periphery of the protective cover 1. Ventilation holes are provided at the bottom of the ventilation windows 13, and air enters the protective cover 1 through the ventilation holes.

[0031] As an embodiment, the first lock buckle 5 is a buckle, and multiple buckles are set between the top cover 3 and the shield 1. In this embodiment, the top cover 3 and the shield 1 are fixed by three buckles, and the three buckles are evenly distributed along the circumference. Figure 4 As shown, the positioning member 51 of the buckle is fixed on the inner wall of the top cover 3, and the locking member 52 of the buckle is correspondingly arranged on the inner wall of the shield 1. The buckle is a mature existing technology. The figure shows only one type of buckle. Any buckle can be used in this device as long as it can meet the size requirements of the utility model.

[0032] The second lock catch 6 is an anti-theft bolt that passes through the side door 4 and is threadedly connected to the shield 1. The end of the anti-theft bolt is lower than the notch of the first groove 41. The anti-theft bolt described in the present invention is an anti-theft bolt that requires a proprietary tool and cannot be easily opened using conventional tools or destructive props.

[0033] As an embodiment, the anti-theft bolt includes a screw rod 62 with threads on the surface and a bolt head 61. The threads on the surface of the screw rod 62 are not shown in the drawings. Figure 5 As shown, the bolt head 61 is cylindrical, and a second groove 63 is circumferentially provided on the bolt head 61 near the screw 62. In this embodiment, two second grooves 63 are symmetrically provided on the bolt head 61, and the second grooves 63 are rectangular. Correspondingly, the first groove 41 is cylindrical, and the gap between the first groove 41 and the anti-theft bolt is smaller than the diameter of the screw 62.

[0034] When observing from the outside of the device, only the smooth cylindrical bolt head 61 can be seen, but the second groove 63 with a large force-bearing area cannot be observed. In addition, since the gap between the first groove 41 and the anti-theft bolt is small, even if it is known that there is a second groove 63 between the bolt head 61 and the screw rod 62, the anti-theft bolt cannot be removed without a special tool 7, thereby greatly improving the anti-theft performance of the wellhead protection device.

[0035] like Figure 6 As shown, this embodiment provides a tool for removing the anti-theft bolts:

[0036] The anti-theft bolt is removed by a special tool 7, which includes a clamp arm, a sleeve 72 and a handle 73. The top of the clamp arm is used to insert the bolt head 61. The clamp arm has a protrusion that matches the second groove 63. When two second grooves 63 are symmetrically provided on the bolt head 61, the clamp arm is composed of two clamp arm halves 71 with the same structure and symmetrically provided along the axis. The sleeve 72 for fixing the two clamp arm halves 71 is provided outside the clamp arm half 71.

[0037] As an implementation method, a connecting portion is fixedly provided at the bottom of one of the clamp arm halves 71, and the connecting portion is plugged into the handle 73. Specifically, the connecting portion can be a hexagonal bolt, and the clamp arm half 71 and the hexagonal bolt are fixed by welding. A regular hexagonal hole matching the bolt head of the hexagonal bolt is provided on the top of the handle 73. When in use, the two clamp arm halves 71 are respectively fastened to the two sides of the bolt head 61, and the two clamp arm halves 71 are fixed with the sleeve 72. The inner hexagonal hole of the handle 73 is fastened with the hexagonal bolt to complete the assembly of the special tool 7. By turning the handle 73, the second lock buckle 6 described in this embodiment can be removed.

[0038] The working principle of this utility model:

[0039] When in use, the shield 1 is fixed above the wellhead through the base 2, the top cover 3 is fixed to the top of the shield 1 through the first lock 5 provided in the device, the side door 4 is closed, and the second lock 6 is tightened into the first groove 41 on the side door 4 using a special tool 7. At this point, the assembly of the wellhead protection device can be completed. Since the locks are all hidden and there are no fasteners on the surface of the shield 1 that can be directly opened using existing tools, the shield has high anti-theft performance and cannot be easily opened by outsiders, which provides good protection for the equipment in the well.

[0040] The embodiments described above are only preferred embodiments of the present invention and do not limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structure, features and principles described in the patent scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A wellhead protection device, characterized in that: The protective device comprises a protective cover (1) and a base (2), wherein the protective cover (1) is fixed above the wellhead via the base (2); One end of the shield (1) is communicated with the wellhead, and the surface of the shield (1) has a first outlet (11) and a second outlet (12). A top cover (3) is provided at the first outlet (11), and the top cover (3) covers the first outlet (11) and is detachably connected to the shield (1) through a first lock buckle (5), and the first lock buckle (5) is located inside the shield (1); a side door (4) is provided at the second outlet (12), and the side door (4) covers the second outlet (12) and is provided with a first groove (41) at the connection with the shield (1), and a second lock buckle (6) is provided in the first groove (41), and the side door (4) is detachably connected to the shield (1) through the second lock buckle (6).

2. A wellhead protection device according to claim 1, characterized in that: The shield (1) is cylindrical, a first outlet (11) is provided on the top of the shield (1), and a second outlet (12) is provided on the side of the shield (1).

3. A wellhead protection device according to claim 1, characterized in that: The side door (4) is hinged to the shield (1), and a plurality of first grooves (41) are provided on the other side of the side door (4) away from the hinged side.

4. A wellhead protection device according to claim 1, characterized in that: A plurality of ventilation windows (13) are provided on the outer periphery of the protective cover (1).

5. A wellhead protection device according to claim 1, characterized in that: The first lock buckle (5) is a buckle, and a plurality of buckles are provided between the top cover (3) and the shield (1). The positioning member (51) of the buckle is fixed to the inner wall of the top cover (3), and the locking member (52) of the buckle is correspondingly provided on the inner wall of the shield (1).

6. A wellhead protection device according to claim 1, characterized in that: The second lock buckle (6) is an anti-theft bolt, which passes through the side door (4) and is threadedly connected to the shield (1), and the end of the anti-theft bolt is lower than the notch of the first groove (41).

7. A wellhead protection device according to claim 6, characterized in that: The anti-theft bolt comprises a screw rod (62) having a threaded surface and a bolt head (61). The bolt head (61) is cylindrical, and a second groove (63) is provided on the bolt head (61) along the circumferential direction near the screw rod (62).

8. A wellhead protection device according to claim 7, characterized in that: Two second grooves (63) are symmetrically arranged on the bolt head (61), and the second grooves (63) are rectangular.

9. A wellhead protection device according to claim 7, characterized in that: The first groove (41) is cylindrical, and the gap between the first groove (41) and the anti-theft bolt is smaller than the diameter of the screw rod (62).

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