Wellhead safety protection device

Abstract

The present application belongs to the field of production safety technology, and specifically provides a wellhead safety protection device, including a guardrail and a first cover plate, wherein the guardrail is a foldable frame structure, and the guardrail is erected around the wellhead; the first cover plate is installed on the side of the guardrail, and the first cover plate is used to cover the wellhead. The wellhead safety protection device provided by the present application not only meets the requirements for the inspection, maintenance and access functions of the lower facilities of the belt conveyor corridor, but also completely solves the potential safety hazards caused by the failure to cover the wellhead cover in time; the present application designs the first cover plate and the guardrail as a linkage device with an integrated structure, which has a compact structure and is easy to retract and fold. When the first cover plate is opened, the guardrail is unfolded at the same time to form a fence around the wellhead, which also plays a role in safety protection; when the guardrail is folded down, the first cover plate can move downward together with it to close and cover the wellhead, which is simple and convenient to operate, thereby improving the convenience of operation.

Description

Technical Field

[0001] The present application belongs to the technical field of safe production, and more specifically, relates to a wellhead safety protection device. Background Art

[0002] Belt conveyors are commonly used equipment in the mining and metallurgical industries. Dozens of belt conveyors form a continuous material conveying line, and elevated belt conveyor corridors are formed along the line, thus realizing long-distance transportation. Since various pipelines, cables and other facilities need to be installed simultaneously, the corridor is sometimes designed as two floors as needed. Belt conveyor equipment is installed on the upper floor, and generally 2-4 belt conveyors are designed in parallel. The lower floor is used as a cable corridor and pipe corridor, thus realizing long-distance electrical signal, energy medium, and material transmission. On a daily basis, personnel enter the lower corridor (pipe) corridor to inspect operations.

[0003] In the prior art, a personnel entrance and exit (or wellhead) is usually designed at intervals of 50-100m on the walkway between two parallel belt conveyors on the upper level, with a fixed ladder at the bottom and a movable cover installed at the top. Since the corridor is long, when personnel enter from a wellhead and may come out from another wellhead after checking along the corridor, the entrance cover is often not covered (and it is not convenient to cover it), thus leaving safety hazards. In particular, when night shift personnel inspect along the belt conveyor operation line, it is easy for people to fall into the well if they are not careful. Therefore, requirements are put forward for the safety of the wellhead cover to eliminate safety hazards and ensure personal safety. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a wellhead safety protection device to solve the technical problem in the prior art that there is a safety hazard when the wellhead is opened but not covered.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a wellhead safety protection device, including:

[0006] A guardrail, wherein the guardrail is a foldable frame structure and is erected around the wellhead; and

[0007] A first cover plate is installed on a side of the guardrail, and the first cover plate is used to cover the wellhead.

[0008] Optionally, the guardrail comprises:

[0009] A vertical pole, the vertical pole being rotatably connected to a mounting surface around the wellhead, and a plurality of vertical poles are provided;

[0010] A crossbar, the crossbar being rotatably connected to the vertical rod; a plurality of crossbars are provided;

[0011] A longitudinal rod is rotatably connected to the cross rod; a plurality of longitudinal rods are provided; a plurality of the vertical rods, a plurality of the cross rods and a plurality of the longitudinal rods can be unfolded to form a hexahedral frame structure.

[0012] Optionally, the crossbar includes a first crossbar and a second crossbar which are arranged parallel to each other; the length of the first crossbar is greater than the length of the second crossbar.

[0013] Optionally, the wellhead safety protection device further comprises an ear seat, the ear seat is mounted on the mounting surface, one end of the vertical rod is rotatably connected to the ear seat; the ear seat and the vertical rod are arranged in a one-to-one correspondence.

[0014] Optionally, four ear seats are provided, and the connecting lines between the four ear seats form a trapezoid.

[0015] Optionally, the wellhead safety protection device further comprises a limit block, wherein the limit block is mounted on the ear seat and is used to limit the rotation angle of the vertical pole.

[0016] Optionally, the wellhead safety protection device further comprises a locking member, wherein the locking member is detachably connected to the vertical rod and the ear seat, and the locking member is used to limit the vertical rod from rotating relative to the ear seat.

[0017] Optionally, the wellhead safety protection device also includes a protection rope, and the protection rope is hung between two adjacent vertical poles.

[0018] Optionally, the surfaces of the guardrail and the first cover plate are coated with fluorescent reflective material.

[0019] Optionally, the wellhead safety protection device further comprises a second cover plate, the installation surface of the guardrail is lower than the ground surface to form a sunken area, and the second cover plate is used to cover the opening of the sunken area.

[0020] The beneficial effect of the wellhead safety protection device provided by the present application is that: compared with the prior art, the wellhead safety protection device of the present application not only meets the requirements of the inspection, maintenance and access functions of the lower facilities of the belt conveyor corridor, but also completely solves the safety hazard problem that the wellhead cover plate is not covered in time. The present application designs the first cover plate and the guardrail as a linkage device with an integrated structure, which has a compact structure and is easy to retract and fold, thereby improving the convenience of operation. The wellhead safety protection device can realize the folding and deformation function. When the first cover plate is opened, the guardrail is unfolded at the same time to form a fence around the wellhead, realizing the "one-button" operation, and also plays a role in safety protection after the wellhead is opened. The staff can enter the lower corridor from the wellhead that is opened and has a safety guardrail to work. After the personnel leave the well, fold the guardrail downward, and the first cover plate can move downward with the guardrail to close and cover the wellhead. The guardrail folds back to the ground of the safety passage without affecting the normal walking of the personnel on the corridor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A schematic diagram of an open state of a first cover plate in a wellhead safety protection device provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of a closed state of the first cover plate in the wellhead safety protection device provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of fixing the position of the neutral rod of the wellhead safety protection device provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the connection structure between the casing and the long rotating shaft in the wellhead safety protection device provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of installing a protection rope on a protection fence in a wellhead safety protection device provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of the installation of the second cover plate in the wellhead safety protection device provided in an embodiment of the present application.

[0028] Among them, the reference numerals in the figure are:

[0029] 100-wellhead; 200-ground surface; 300-sinking area;

[0030] 1-guardrail; 111-first horizontal bar; 112-second horizontal bar; 121-first vertical bar; 122-second vertical bar; 123-third vertical bar; 124-fourth vertical bar; 131-first vertical bar; 132-second vertical bar;

[0031] 2- first cover plate;

[0032] 3-ear seat;

[0033] 4-limiting block;

[0034] 5-locking piece;

[0035] 6-Protective rope;

[0036] 7- second cover plate;

[0037] 8- long rotating shaft;

[0038] 9- casing;

[0039] 10- Hinge. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0042] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] Please also read Figures 1 to 6 , the wellhead safety protection device provided in the embodiment of the present application is now described. The wellhead safety protection device comprises a guardrail 1 and a first cover plate 2. The guardrail 1 is a foldable frame structure, and the guardrail 1 is erected around the wellhead 100; the first cover plate 2 is installed on the side of the guardrail 1, and the first cover plate 2 is used to cover the wellhead 100. This embodiment can be applied to the wellhead protection on the elevated belt conveyor corridor.

[0045] Compared with the prior art, the wellhead safety protection device provided by the present application not only meets the requirements of the inspection, maintenance and access functions of the lower facilities of the belt conveyor corridor, but also completely solves the potential safety hazards of the wellhead 100 cover plate not being covered in time. The present application designs the first cover plate 2 and the guardrail 1 as a linkage device with an integrated structure, which is compact in structure, easy to retract and fold, and improves the convenience of operation. The wellhead safety protection device can realize the folding and deformation function. When the first cover plate 2 is opened, the guardrail 1 is unfolded at the same time, forming a fence around the wellhead 100, realizing the "one-button" operation, and also plays a role in safety protection after the wellhead 100 is opened. The staff can enter the lower corridor from the wellhead 100 that is opened and has the safety guardrail 1. After the personnel leave the well, fold the guardrail 1 downward, and the first cover plate 2 can move downward with the guardrail 1 to close and cover the wellhead 100. The guardrail 1 is folded back to the ground of the safety passage, which does not affect the normal walking of the personnel on the corridor.

[0046] In one embodiment of the present application, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 The guardrail 1 includes a vertical pole, a horizontal pole and a vertical pole; the vertical pole can be rotatably connected to the mounting surface around the wellhead 100, and there are multiple vertical poles; the horizontal pole is rotatably connected to the vertical pole; there are multiple horizontal poles; the vertical pole is rotatably connected to the horizontal pole; there are multiple vertical poles; the vertical pole is rotatably connected to the horizontal pole; there are multiple vertical poles; the multiple vertical poles, multiple horizontal poles and multiple vertical poles can be unfolded to form a hexahedral frame structure. One of the planes of the hexahedron is the mounting surface around the wellhead 100, and the four faces of the hexahedron adjacent to the mounting surface surround the wellhead 100 to form a fence, which plays a role in safety protection, and the first cover plate 2 is installed on any one of the four faces adjacent to the mounting surface.

[0047] Specifically, the crossbar is rotatably connected to the vertical bar and the longitudinal bar through the same long rotating shaft 8, and the length direction of the crossbar is the same as the length direction of the long rotating shaft 8, so that the rotation axis of the crossbar relative to the longitudinal bar and the rotation axis of the crossbar relative to the vertical bar can coincide, so that the crossbar, the longitudinal bar and the vertical bar can be in the same plane after folding. A sleeve 9 is sleeved on the long rotating shaft 8, which can separate the crossbar from the longitudinal bar and the crossbar from the vertical bar, which can ensure the stability of the structure and improve the flexibility of the guardrail 1 when it is folded and rotated.

[0048] In one embodiment of the present application, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 The cross bar includes a first cross bar 111 and a second cross bar 112 which are arranged parallel to each other; the length of the first cross bar 111 is greater than the length of the second cross bar 112.

[0049] Specifically, the vertical poles include a first vertical pole 121, a second vertical pole 122, a third vertical pole 123 and a fourth vertical pole 124; one end of the first cross bar 111 is connected to one end of the first vertical pole 121, the other end of the first cross bar 111 is connected to one end of the second vertical pole 122, one end of the second cross bar 112 is connected to one end of the third vertical pole 123, the other end of the second cross bar 112 is connected to one end of the fourth vertical pole 124, and both sides of the first cover plate 2 are respectively connected to the third vertical pole 123 and the fourth vertical pole 124; the plate surface of the first cover plate 2 is in the same plane as the second cross bar 112, the third vertical pole 123 and the fourth vertical pole 124. The size of the first cover plate 2 is larger than the size of the wellhead 100. When the first cover plate 2 covers the wellhead 100, the minimum distance from the edge of the first cover plate 2 to the edge of the wellhead 100 can be greater than 100 mm.

[0050] The length of the first crossbar 111 is greater than that of the second crossbar 112, that is, the distance between the two vertical poles connected to the first crossbar 111 is greater than the distance between the two vertical poles connected to the second crossbar 112. In this way, when the guardrail 1 is folded to the ground, the four vertical poles will not interfere with each other, and the entire guardrail 1 is in a plane after being folded.

[0051] The longitudinal rods include a first longitudinal rod 131 and a second longitudinal rod 132; the first longitudinal rod 131 and the second longitudinal rod 132 are parallel to each other, one end of the first longitudinal rod 131 is rotatably connected to the first end of the first cross rod 111, and the other end of the first longitudinal rod 131 is rotatably connected to the first end of the second cross rod 112; one end of the second longitudinal rod 132 is rotatably connected to the second end of the first cross rod 111, and the other end of the first longitudinal rod 131 is rotatably connected to the second end of the second cross rod 112.

[0052] In one embodiment of the present application, please refer to Figures 1 to 3 , Figure 5 and Figure 6 The wellhead safety protection device also includes an ear seat 3, which is installed on the installation surface, and one end of the vertical rod is rotatably connected to the ear seat 3; the ear seat 3 is arranged in a one-to-one correspondence with the vertical rod.

[0053] Specifically, the ear seat 3 is fixed on the corridor floor surface 200 , and the vertical pole and the ear seat 3 can be connected by a short rotating shaft to achieve a rotatable connection between the vertical pole and the ear seat 3 .

[0054] In one embodiment of the present application, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 There are four ear seats 3, and the connecting lines between the four ear seats 3 form a trapezoid.

[0055] The four ear seats 3 are arranged in a trapezoidal shape, which not only realizes the deformable folding function of the parallelogram, but also achieves that the four uprights are in a plane after being folded, and at the same time can reduce the sinking depth dimension, and is more convenient for maintenance. In particular, the four ear seats 3 can be arranged in an isosceles trapezoidal shape.

[0056] In one embodiment of the present application, see Figure 3 The wellhead safety protection device also includes a limit block 4, which is installed on the ear seat 3 and is used to limit the rotation angle of the vertical rod.

[0057] Specifically, due to the constraints of the ground surface 200 and the stopper 4, the rotation angle range of the vertical pole is 0-90 degrees. When the guardrail 1 is in the folded state, the vertical pole is parallel to the ground surface 200, and the angle is 0 degrees; when the guardrail 1 is in the unfolded state, the vertical pole is perpendicular to the ground surface 200, and the angle is 90 degrees. When the guardrail 1 is unfolded, due to the obstruction of the stopper 4, the vertical pole cannot continue to rotate in the original direction. The maximum rotation angle of the vertical pole is 90 degrees, which can ensure that the vertical pole is perpendicular to the ground surface 200 when the guardrail 1 is unfolded.

[0058] In one embodiment of the present application, see Figure 3 The wellhead safety protection device also includes a locking member 5, which is detachably connected to the vertical rod and the ear seat 3, and is used to limit the vertical rod from rotating relative to the ear seat 3.

[0059] Specifically, the locking member 5 can be a pin shaft, and a pin hole that can cooperate with the pin shaft is provided on the vertical rod and the ear seat 3. When the guardrail 1 is unfolded, the pin hole on the vertical rod and the pin hole on the ear seat 3 are aligned, and the pin shaft is inserted into the pin holes of the vertical rod and the ear seat 3, so that the vertical rod and the ear seat 3 can be fixed. The vertical rod can neither rotate forward nor reverse, and the unfolded state of the guardrail 1 can be locked, thereby improving the stability of the guardrail 1 in the unfolded state. When the guardrail 1 needs to be folded, it is only necessary to remove the pin shaft from the pin holes of the vertical rod and the ear seat 3, which is simple, convenient and quick to operate.

[0060] In another embodiment of the present application, the locking member 5 may also be a bolt, and through holes through which the bolts can pass are provided on the vertical pole and the ear seat 3. After the bolts pass through the through holes on the vertical pole and the ear seat 3, a nut is screwed into the end of the bolt to fix it.

[0061] In one embodiment of the present application, see Figure 5 The wellhead safety protection device also includes a protection rope 6, which is hung between two adjacent vertical poles.

[0062] By providing the protection rope 6 , the gap between two adjacent upright poles can be filled, the protection area can be enlarged, the safety performance can be further improved, and the folding of the protection fence 1 will not be affected.

[0063] Specifically, the protective rope 6 can be a soft chain or a steel wire rope. A hanging ring can be provided on the vertical pole, and hooks can be provided at both ends of the protective rope 6. The hooks can be detachably buckled on the hanging rings, which can facilitate the installation and removal of the protective rope 6. The length of the protective rope 6 can be greater than the distance between two adjacent vertical poles when the guardrail 1 is unfolded, and the protective rope 6 generally has a certain degree of flexibility. In this way, the guardrail 1 can be folded normally without removing the protective rope 6.

[0064] A plurality of protective ropes 6 can be arranged between two adjacent upright posts to fill up as many empty areas between two adjacent upright posts as possible; the plurality of protective ropes 6 can be arranged parallel to each other or cross each other to form a mesh structure.

[0065] In one embodiment of the present application, the surfaces of the guardrail 1 and the first cover plate 2 are coated with fluorescent reflective material. The fluorescent reflective material can reflect light under the illumination of light, and can serve as a contour mark and a safety reminder. By coating with eye-catching fluorescent reflective paint, safety measures are further strengthened.

[0066] In one embodiment of the present application, see Figure 6 The wellhead safety protection device also includes a second cover plate 7. The installation surface of the guardrail 1 is lower than the ground surface 200 to form a sunken area 300. The second cover plate 7 is used to cover the opening of the sunken area 300.

[0067] The second cover plate 7 is flush with the ground surface 200 when opened or closed. The depth of the sinking of the wellhead 100, i.e., the distance from the installation surface of the guardrail 1 to the ground surface 200, can be between 100 mm and 150 mm. The sinking area 300 is slightly larger than the folded guardrail 1, so that the folded guardrail 1 can be completely accommodated in the sinking area 300, so that the guardrail 1 is hidden under the ground surface 200, and the folded guardrail 1 will not be exposed from the ground surface 200, ensuring that the ground surface 200 of the safety passage is flat and has no steps, forming an barrier-free passage, and preventing the folded guardrail 1 from being exposed from the ground surface 200 and tripping the staff, thereby further improving safety.

[0068] Specifically, four second cover plates 7 can be arranged in the front and back, and the second cover plates 7 are connected to the ground surface 200 by hinges 10. The four second cover plates 7 form two sets of double-door structures in series, similar to the form of a cross-door refrigerator. When the guardrail 1 is unfolded, the two second cover plates 7 at the back can be put down to prevent the staff from stepping into the sunken area 300 and causing personal injuries, such as sprains and falls. When the guardrail 1 is folded back to the sunken area 300, the four second cover plates 7 can cover the sunken area 300 and restore the safety passage to a normal state. The potential safety hazard of the height difference in the sunken area 300 is eliminated.

[0069] The operation method of the wellhead safety protection device provided in this embodiment is as follows:

[0070] (2) When the wellhead safety protection device is in the folded state on the corridor floor surface 200, the first cover plate 2 closes the wellhead 100, and the first cross bar 111 is first lifted, and the vertical rod of the entire guardrail 1 is rotated through the ear seat 3, and the vertical rod is erected to 90 degrees. At this time, the limit block 4 on the ear seat 3 just blocks the vertical rod;

[0071] (2) Insert the pin shaft serving as the locking member 5 into the pin hole at the bottom of the vertical pole and the pin hole on the ear seat 3, and fix the vertical pole and the ear seat 3 (they can also be locked with a nut);

[0072] (3) The operator enters the wellhead 100 from the guardrail 1 to perform operations;

[0073] (4) After the operation is completed, the operator comes out from the wellhead 100, climbs over the guardrail 1 and returns to the corridor ground surface 200;

[0074] (5) Remove the pin shaft serving as the locking member 5 from the pin hole at the lower portion of the vertical rod and the pin hole on the ear seat 3;

[0075] (6) Hold the rear horizontal bar and slowly rotate it toward the ground until the entire guardrail 1 is completely attached to the ground and the first cover plate 2 just covers the wellhead 100.

[0076] (7) For the wellhead safety protection device including the second cover plate 7, the second cover plate 7 is finally covered.

[0077] This embodiment is not limited to the application in the wellhead protection on the elevated belt conveyor corridor, but can also be applied to various other wellhead entrances and exits, such as: wellheads on the road surface, maintenance wellheads above and below bridges, entrances and exits of the top platforms of buildings, wellheads for entering and exiting confined spaces, etc.

[0078] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A wellhead safety protection device, characterized in that: include: A guardrail (1), the guardrail (1) being a foldable frame structure, and the guardrail (1) being erected around the wellhead (100); and A first cover plate (2), the first cover plate (2) being mounted on a side surface of the guardrail (1), the first cover plate (2) being used to cover the wellhead (100); The guardrail (1) comprises a vertical pole, a horizontal pole and a vertical pole; the vertical pole is rotatably arranged on a mounting surface around the wellhead (100), and a plurality of vertical poles are provided; the horizontal pole is rotatably connected to the vertical pole; a plurality of horizontal poles are provided; the vertical pole is rotatably connected to the horizontal pole; a plurality of vertical poles are provided; the plurality of vertical poles, the plurality of horizontal poles and the plurality of vertical poles can be unfolded to form a hexahedral frame structure; The crossbar comprises a first crossbar (111) and a second crossbar (112) which are arranged parallel to each other; the length of the first crossbar (111) is greater than the length of the second crossbar (112); The wellhead safety protection device also includes an ear seat (3), the ear seat (3) is installed on the installation surface, one end of the vertical rod is rotatably connected to the ear seat (3); the ear seat (3) and the vertical rod are arranged in a one-to-one correspondence.

2. The wellhead safety protection device according to claim 1, characterized in that: There are four ear seats (3), and the connecting line between the four ear seats (3) forms a trapezoid.

3. The wellhead safety protection device according to claim 1, characterized in that: The wellhead safety protection device further comprises a limit block (4), wherein the limit block (4) is mounted on the ear seat (3), and the limit block (4) is used to limit the rotation angle of the vertical rod.

4. The wellhead safety protection device according to claim 1, characterized in that: The wellhead safety protection device also includes a locking member (5), which is detachably connected to the vertical rod and the ear seat (3), and the locking member (5) is used to limit the rotation of the vertical rod relative to the ear seat (3).

5. The wellhead safety protection device according to claim 1, characterized in that: The wellhead safety protection device also includes a protection rope (6), and the protection rope (6) is hung between two adjacent vertical poles.

6. The wellhead safety protection device according to claim 1, characterized in that: The surfaces of the guardrail (1) and the first cover plate (2) are coated with fluorescent reflective material.

7. The wellhead safety protection device according to any one of claims 1 to 6, characterized in that: The wellhead safety protection device further comprises a second cover plate (7); the installation surface of the guardrail (1) is lower than the ground surface (200) to form a sunken area (300); and the second cover plate (7) is used to cover the opening of the sunken area (300).

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