A wellhead protector for a well being drilled

Abstract

The utility model discloses a wellhead protection device of well drilling relates to wellhead protection field, including device main part, and the device main part is slidably connected with fixed establishment, and the fixed establishment top detachably connected with the closure cover, and the device main part outside is provided with four folding aprons, and the folding apron includes two symmetrical first folding board, and the first folding board other end is hinged with second folding board, and two second folding board other end is hinged with same third folding board, and the third folding board is slidably connected with unfolding sliding block, and the unfolding sliding block upper and lower two ends are hinged with two unfolding connecting rods respectively, and the upside unfolding connecting rod other end is hinged with fixed establishment, and the downside unfolding connecting rod other end is hinged with device main part. Advantageous effect lies in: during the descent of the lifting support, the unfolding connecting rod pushes and makes the unfolding sliding block move, then the third folding board moves outward, and the unfolding second folding board moves with the first folding board, then the folding apron unfolds and forms the guardrail, and the personnel is blocked and approaches the device.

Description

Technical Field

[0001] This utility model relates to the field of wellhead protection, and in particular to a wellhead protection device for drilling. Background Technology

[0002] In order to obtain relevant groundwater data in a timely manner, geological departments usually drill a well in the predicted area, then set up relevant monitoring equipment at the wellhead and place relevant sensors in the well. The monitored data is transmitted manually or wirelessly.

[0003] Drilling sites are often located in complex terrain such as the field. After drilling is completed, the wellhead is usually set up in a closed and protected state with obvious warning signs to prevent people or other animals from accidentally entering.

[0004] For example, patent document CN223410805U discloses a wellhead protection device. The device includes a cover and a base. The cover is fixed above the wellhead via the base. One end of the cover communicates with the wellhead. The cover surface has a first outlet and a second outlet. A top cover is provided at the first outlet, covering it and detachably connected to the cover via a first latch, which is located inside the cover. A side door is provided at the second outlet, covering it and having a first groove at its connection to the cover. A second latch is located within the first groove, and the side door is detachably connected to the cover via the second latch. This invention includes a first latch located inside the protection device and a second latch hidden outside the device, preventing the protection device from being easily opened from the outside. This effectively protects the underground environment and groundwater monitoring equipment, providing good anti-theft protection.

[0005] In the existing technology, since geological drilling work often takes place in complex terrain such as the field, wellhead protection devices should be portable and foldable to meet the requirements of field work, and should also have the function of rapid deployment to improve deployment efficiency. Utility Model Content

[0006] The purpose of this invention is to provide a wellhead protection device for drilling in order to solve the above-mentioned problems.

[0007] This utility model achieves the above objectives through the following technical solutions: A wellhead protection device for drilling includes a main body with a fixing mechanism slidably connected to it. The fixing mechanism includes an orifice pipe with a lifting bracket fixedly connected to its upper end. Several fixing nails are fixedly connected to the outside of the lifting bracket. A sealing cover is detachably connected to the top of the orifice pipe. Four folding protective plates are provided on the outside of the main body. Each folding protective plate includes two symmetrically arranged first folding plates hinged to the main body. A second folding plate is hinged to the other end of each first folding plate. The other ends of the two second folding plates are hinged to the same third folding plate. An unfolding slider is slidably connected to the third folding plate. Two unfolding connecting rods are hinged to the upper and lower ends of the unfolding slider, respectively. The other end of the upper unfolding connecting rod is hinged to the fixing mechanism, and the other end of the lower unfolding connecting rod is hinged to the main body.

[0008] Preferably, the main body of the device includes a base, which is slidably connected to a fixing nail. Four sets of symmetrically arranged support rods are fixedly connected to the top of the base. The support rods are hinged to the first folding plate. An upper bracket is fixedly connected to the top of the support rods. Four evenly arranged lower hinge ears are fixedly connected to the top of the base. The lower hinge ears are hinged to the other end of the lower unfolding connecting rod.

[0009] Preferably, a first gear ring is rotatably connected to the top center of the upper bracket, four first gears are hinged to the outside of the first gear ring, a vertical screw is fixedly connected to the middle of the first gear, the vertical screw is rotatably connected to the base and the upper bracket, the vertical screw is threadedly connected to the lifting bracket, and a lowering knob is fixedly connected to the top of the vertical screw.

[0010] Preferably, the bottom of the lifting bracket is fixedly connected with four evenly arranged upper hinge ears, which are correspondingly arranged with the lower hinge ears. The upper hinge ears are hinged to the other end of the upper unfolding connecting rod, and the top of the orifice tube is fixedly connected with several evenly arranged fixing bolts.

[0011] Preferably, the sealing cover includes a cover body, a second gear ring is rotatably connected to the center of the cover body, a plurality of second gears are meshed on the outer side of the second gear ring, the second gears are rotatably connected to the cover body, the center of the second gears is provided with internal threads, the second gears can be threadedly connected to the fixing bolts, and a locking knob is coaxially fixedly connected to the top of the second gear ring.

[0012] Preferably, the first folding plate, the second folding plate, and the third folding plate are made of plastic, and warning signs are provided on the outer surface of the second folding plate and the third folding plate.

[0013] The beneficial effect is that, by setting up the folding guard plate, during the descent of the lifting support, the unfolding linkage pushes the unfolding slider to move, the unfolding slider pushes the third folding plate to move outward, and then the third folding plate drives the second folding plate to move, the second folding plate pushes open the first folding plate, and thus the folding guard plate unfolds to form a guardrail, preventing personnel from approaching the device. In this way, the wellhead protection device can be quickly unfolded.

[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of the wellhead protection device for drilling described in this utility model in its unfolded state; Figure 2 This is a top view of the wellhead protection device for drilling described in this utility model in its unfolded state; Figure 3 This is a cross-sectional view along direction A of the wellhead protection device for drilling according to this utility model; Figure 4 This is a perspective view of the folded state of the wellhead protection device for drilling according to this utility model; Figure 5 This is a perspective view of the relative positions of the fixing mechanism and the sealing cover of the wellhead protection device for drilling according to this utility model; Figure 6 This is a three-dimensional structural view of the fixing mechanism of the wellhead protection device for drilling according to the present invention; Figure 7 This is a three-dimensional structural view of the main body of the wellhead protection device for drilling according to the present invention; Figure 8 This is a three-dimensional structural view of the folding guard plate of a wellhead protection device for drilling according to the present invention.

[0016] The annotations in the attached figures are explained as follows: 101. Base; 102. Supporting vertical rod; 103. Upper bracket; 104. Vertical screw; 105. First gear ring; 106. First gear; 107. Lower locking knob; 108. Lower hinge lug; 201. Orifice tube; 202. Lifting bracket; 203. Fixing pin; 204. Upper hinge lug; 205. Fixing bolt; 301. Cover; 302. Second gear; 303. Second gear ring; 304. Locking knob; 401. First folding plate; 402. Second folding plate; 403. Third folding plate; 404. Unfolding slider; 405. Unfolding connecting rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-8 As shown, a wellhead protection device for drilling includes a main body with a fixing mechanism slidably connected to it. The fixing mechanism includes an orifice pipe 201, a lifting bracket 202 welded to the upper end of the orifice pipe 201, and several fixing nails 203 fixedly connected to the outside of the lifting bracket 202. A sealing cover is detachably connected to the top of the orifice pipe 201. Four folding protective plates are provided on the outside of the main body. Each folding protective plate includes two symmetrically arranged first folding plates 401 hinged to the main body. A second folding plate 402 is hinged to the other end of each of the first folding plates 401. The other ends of the two second folding plates 402 are hinged to the same third folding plate 403. An unfolding slider 404 is slidably connected to the third folding plate 403. Two unfolding connecting rods 405 are hinged to the upper and lower ends of the unfolding slider 404, respectively. The other end of the upper unfolding connecting rod 405 is hinged to the fixing mechanism. The other end of the lower unfolding link 405 is hinged to the main body of the device. In use, after the initial well opening and positioning are completed, the orifice pipe 201 is aligned with the well opening and placed into it. Then, the lifting support 202 is lowered, and the fixing nail 203 and the orifice pipe 201 are lowered synchronously. The fixing nail 203 is driven into the soil to fix the device. During this process, the lowering of the lifting support 202 pushes the upper unfolding link 405 to rotate. The upper unfolding link 405 pushes and the lower unfolding link 405 limits the movement, causing the unfolding slider 404 to move obliquely downward. The unfolding slider 404 slides relative to the third folding plate 403 and pushes the third folding plate 403 to move outward. Then, the third folding plate 403 drives the second folding plate 402 to move. The second folding plate 402 pushes open the first folding plate 401, and the folding guard plate unfolds to form a guardrail to prevent personnel from approaching the device.

[0020] The main body of the device includes a base 101, which is slidably connected to a fixing nail 203. Four sets of symmetrically arranged support rods 102 are fixedly connected to the top of the base 101. The support rods 102 are hinged to the first folding plate 401. An upper bracket 103 is fixedly connected to the top of the support rods 102. Four evenly arranged lower hinge ears 108 are fixedly connected to the top of the base 101. The lower hinge ears 108 are hinged to the other end of the lower unfolding connecting rod 405. In use, the support rods 102 are used to support the rotation of the first folding plate 401, and the lower unfolding connecting rod 405 rotates with the lower hinge ears 108 as the center.

[0021] A first gear ring 105 is rotatably connected to the top center of the upper bracket 103. Four first gears 106 are hinged to the outside of the first gear ring 105. A vertical screw 104 is fixedly connected to the middle of the first gear 106. The vertical screw 104 is rotatably connected to the base 101 and the upper bracket 103. The vertical screw 104 is threadedly connected to the lifting bracket 202. A lowering knob 107 is fixedly connected to the top of the vertical screw 104. Several first gear rings 105 and first gears 106 are enclosed in a protective shell (not shown in the figure). In use, the operator drives one of the lowering knobs 107 to rotate using a tool. The lowering knob 107 drives the first gear 106 to rotate. The first gear 106 drives the first gear ring 105 to rotate. The first gear ring 105 drives the remaining first gears 106 to rotate. Thus, the four first gears 106 rotate synchronously. The first gear 106 drives the vertical screw 104 to rotate. The vertical screw 104 drives the lifting bracket 202 to descend.

[0022] The bottom of the lifting bracket 202 is fixedly connected with four evenly arranged upper hinge ears 204. The upper hinge ears 204 are correspondingly arranged with the lower hinge ears 108. The upper hinge ears 204 are hinged to the other end of the upper unfolding connecting rod 405. The top of the orifice tube 201 is fixedly connected with several evenly arranged fixing bolts 205. In use, the upper unfolding connecting rod 405 rotates with the upper hinge ears 204 as the center. The fixing bolts 205 are used to connect with the sealing cover.

[0023] The sealing cover includes a cover body 301. A second gear ring 303 is rotatably connected to the center of the cover body 301. Several second gears 302 are meshed on the outer side of the second gear ring 303. The second gears 302 are rotatably connected to the cover body 301. The center of the second gear 302 is provided with an internal thread, which can be threadedly connected to the fixing bolt 205. The cover body 301 is provided with several holes for the fixing bolts 205 to pass through. A locking knob 304 is coaxially fixedly connected to the top of the second gear ring 303. In use, the holes on the cover body 301 are aligned with the fixing bolts 205. Then, the fixing bolts 205 abut against the internal thread in the middle of the second gears 302. The operator uses a tool to drive the locking knob 304 to rotate. The locking knob 304 drives the second gear ring 303 to rotate. The second gear ring 303 drives the second gears 302 to rotate. The second gears 302 are threadedly engaged with the fixing bolts 205. Thus, the cover body 301 and the orifice tube 201 cooperate to seal the upper end of the orifice tube 201.

[0024] The first folding plate 401, the second folding plate 402, and the third folding plate 403 are made of plastic. The outer surface of the second folding plate 402 and the third folding plate 403 is provided with clear warning signs. When in use, the use of plastic material reduces the weight of the device, and the warning signs are provided to remind people to approach.

[0025] Working principle: After initial well positioning, the orifice pipe 201 is aligned with the wellhead and inserted. The operator uses a tool to drive one of the lowering knobs 107, which in turn drives the first gear 106. The first gear 106 drives the first gear ring 105, which in turn drives the remaining first gears 106. Thus, all four first gears 106 rotate synchronously, driving the vertical screw 104 to rotate. The vertical screw 104 then drives the lifting support 202 to descend. As the lifting support 202 descends, the fixing nail 203 and the orifice pipe 201 descend synchronously, driving the fixing nail 203 into the soil and securing the device. During this process, the descent of the lifting support 202 pushes the upper unfolding connecting rod 405 to rotate. The upper unfolding connecting rod 405 pushes, and the lower unfolding connecting rod 405 limits the movement, causing the unfolding slider 404 to move diagonally downwards. The unfolding slider 404 then interacts with the third folding plate 40... 3. Relative sliding occurs, pushing the third folding plate 403 outward. The third folding plate 403 then moves the second folding plate 402. The second folding plate 402 pushes open the first folding plate 401, and the folding guardrail unfolds to form a barrier, preventing personnel from approaching the device. At this time, the sealing cover is not yet connected to the orifice pipe 201, so geological drilling can continue through the orifice pipe 201. After the drilling is completed, the sealing cover needs to be connected to the orifice pipe 201. Align the hole on the cover 301 with the fixing bolt 205. Then, the fixing bolt 205 abuts against the middle internal thread of the second gear 302. The operator uses a tool to drive the locking knob 304 to rotate. The locking knob 304 drives the second gear ring 303 to rotate. The second gear ring 303 drives the second gear 302 to rotate. The second gear 302 engages with the fixing bolt 205, so the cover 301 and the orifice pipe 201 cooperate to seal the upper end of the orifice pipe 201.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A wellhead protection device for drilling, comprising a device body, characterized in that: A fixing mechanism is slidably connected to the main body of the device. The fixing mechanism includes an orifice tube (201). A lifting bracket (202) is fixedly connected to the upper end of the orifice tube (201). Several fixing nails (203) are fixedly connected to the outside of the lifting bracket (202). A sealing cover is detachably connected to the top of the orifice tube (201). Four folding guard plates are provided on the outside of the main body of the device. The folding guard plates include four sets of symmetrically arranged first folding plates (401) that are hinged to the main body of the device. A second folding plate (402) is hinged to the other end of the first folding plate (401). The other ends of the two second folding plates (402) are hinged to the same third folding plate (403). An unfolding slider (404) is slidably connected to the third folding plate (403). Two unfolding connecting rods (405) are hinged to the upper and lower ends of the unfolding slider (404). The other end of the upper unfolding connecting rod (405) is hinged to the fixing mechanism, and the other end of the lower unfolding connecting rod (405) is hinged to the main body of the device.

2. The wellhead protection device for drilling according to claim 1, characterized in that: The main body of the device includes a base (101), which is slidably connected to the fixing nail (203). Four sets of symmetrically arranged support rods (102) are fixedly connected to the top of the base (101). The support rods (102) are hinged to the first folding plate (401). An upper bracket (103) is fixedly connected to the top of the support rods (102). Four circumferentially evenly arranged lower hinge ears (108) are fixedly connected to the top of the base (101). The lower hinge ears (108) are hinged to the other end of the lower unfolding connecting rod (405).

3. A wellhead protection device for drilling according to claim 2, characterized in that: The upper bracket (103) is rotatably connected to the top center of a first gear ring (105). Four first gears (106) are hinged to the outside of the first gear ring (105). A vertical screw (104) is fixedly connected to the middle of the first gear (106). The vertical screw (104) is rotatably connected to the base (101) and the upper bracket (103). The vertical screw (104) is threadedly connected to the lifting bracket (202). A lower knob (107) is fixedly connected to the top of the vertical screw (104).

4. A wellhead protection device for drilling according to claim 2, characterized in that: The bottom of the lifting bracket (202) is fixedly connected with four evenly arranged upper hinge ears (204), which are arranged in a circle. The upper hinge ears (204) are arranged in a corresponding manner to the lower hinge ears (108). The upper hinge ears (204) are hinged to the other end of the upper unfolding connecting rod (405). The top of the orifice tube (201) is fixedly connected with a number of evenly arranged fixing bolts (205).

5. A wellhead protection device for drilling according to claim 4, characterized in that: The sealing cover includes a cover body (301), a second gear ring (303) is rotatably connected to the center of the cover body (301), a plurality of second gears (302) are meshed on the outer side of the second gear ring (303), the second gears (302) are rotatably connected to the cover body (301), the center of the second gears (302) is provided with internal threads, the second gears (302) can be threadedly connected to the fixing bolts (205), and a locking knob (304) is coaxially fixedly connected to the top of the second gear ring (303).

6. A wellhead protection device for drilling according to claim 1, characterized in that: The first folding plate (401), the second folding plate (402), and the third folding plate (403) are made of plastic. Warning signs are provided on the outer surface of the second folding plate (402) and the third folding plate (403).

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