Slidable mud pit cover plate

Abstract

The utility model provides a mud pit cover plate capable of sliding. The mud pit cover plate comprises a cover base, a pit cover arranged on the cover base in a covering mode and a sliding driving unit for driving the pit cover to slide in the front-back direction. The cross section of the cover base is of a rectangular frame structure, the bottom of the cover base is detachably connected with the mud pit through a flange frame, supporting edges are arranged on the top of the cover base, and sliding grooves are formed in the supporting edges on the left side and the right side in the front-back direction. A butt joint edge matched with the supporting edge is arranged at the bottom of the pool cover, and a sliding block matched with the sliding groove and capable of moving along the sliding groove is arranged at the bottom of the butt joint edge corresponding to the supporting edge provided with the sliding groove; a circle of drainage groove is formed in the upper end face of the butt joint edge in the circumferential direction, and a drainage butt joint pipe opening communicated with an inner cavity of the drainage groove is formed in the pool cover. The slidable mud pit cover plate is timely in drainage and convenient to open and close.

Description

Technical Field

[0001] This utility model belongs to the field of mud pits, and in particular relates to a sliding mud pit cover. Background Technology

[0002] In offshore drilling, mud pits are crucial facilities for offshore oil and gas development, playing a vital role in storing and supplying drilling fluids, preparing and treating drilling fluids, and buffering and stabilizing circulation systems. Mud pits are typically constructed of high-strength steel or reinforced concrete to ensure stable operation in harsh marine environments. The inner walls of the pit are coated with a special anti-corrosion coating to prevent drilling fluid from corroding the pit; a cover is installed on top of the pit to prevent foreign objects from falling in. Existing mud pit cover structures are simple, usually directly covering the pit. Due to their large size and weight, opening and closing them is inconvenient and requires considerable manpower. Furthermore, due to the special nature of the marine environment, if rainwater remains on the cover surface for an extended period and cannot drain in time, it can easily corrode and damage the cover. Utility Model Content

[0003] In view of this, in order to solve the above-mentioned technical problems, this utility model proposes a sliding mud pit cover that allows for timely drainage and convenient opening and closing.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A sliding mud pit cover, comprising:

[0006] The cover has a rectangular frame structure in cross-section. Its bottom is detachably connected to the mud pit through a flange frame. Its top is provided with a support edge, and the support edges on the left and right sides are provided with sliding grooves arranged in the front-back direction.

[0007] A pool cover; the pool cover is mounted on the cover base; the bottom of the pool cover has a mating edge that adapts to the supporting edge, and the bottom of the mating edge corresponding to the supporting edge with the sliding groove has a slider that adapts to the sliding groove and can move along the sliding groove; the upper end face of the mating edge has a drainage groove around its circumference, and the pool cover has a drainage connection port that communicates with the inner cavity of the drainage groove.

[0008] A sliding drive unit, the movable end of which is connected to the pool cover, drives the pool cover to slide in the front-back direction.

[0009] The bottom of the cover is bolted to the top of the mud pit via a flange frame; the top of the cover is connected to the cover; the cover and the cover are slidably connected in the front-to-back direction via a sliding groove and a slider. The sliding drive unit drives the cover to move relative to the cover in the front-to-back direction to open and close the cover. At this time, the slider moves in the groove, which plays a guiding and limiting role, making the opening and closing operation more convenient, reducing manual intervention and workload; a drainage groove is set on the upper end of the mating edge at the edge of the cover. Rainwater on the surface of the cover is collected in the drainage groove and can be discharged through the drainage connection port to prevent rainwater residue.

[0010] Furthermore, the sliding drive unit is mounted on the left side support edge; the sliding drive unit includes a mounting plate fixed to the side wall of the left side support edge, a drive motor fixed to one end of the mounting plate, a lead screw driven by the drive motor and arranged in the front-rear direction, a fixed seat fixed to the other end of the mounting plate, and a movable plate connected to the lead screw nut on the lead screw; the tail end of the lead screw is rotatably connected to the fixed seat; the movable plate is fixed to the left side docking edge.

[0011] The drive motor drives the lead screw to rotate, and the lead screw nut drives the moving plate to move in the front and back direction, thereby moving the pool cover in the front and back direction to realize the opening and closing operation.

[0012] Furthermore, it also includes a sliding guide unit, which is installed on the right side support edge; the sliding guide unit includes a second mounting plate fixed to the side wall of the right side support edge, two second fixed seats fixed to both ends of the second mounting plate, a guide rod fixed to the two second fixed seats in the front-back direction, a sliding sleeve sleeved on the guide rod, and a second movable plate connected to the sliding sleeve; the second movable plate is fixed to the right side docking edge.

[0013] During the movement of the pool cover driven by the sliding drive unit, the pool cover drives the moving plate and the sliding sleeve to move along the guide rod; the sliding guide unit plays a role in guiding, limiting and improving the stability during the movement.

[0014] Furthermore, both the first and second movable plates are provided with a cover housing that covers the sliding drive unit and the sliding guide unit; the cover housing has a slide rail arranged in the front-to-back direction on the side facing the docking edge, the first and second movable plates are located outside their respective covers, and are connected to the lead screw nut or the sliding sleeve on their respective lead screws by a connecting plate slidably inserted in the slide rail.

[0015] The enclosure covers the relevant components, providing protection and improving safety.

[0016] Furthermore, the mating edges on both the left and right sides are provided with covers that extend outward and cover the housing.

[0017] The cover protects the casing and prevents rainwater from falling directly onto it.

[0018] Furthermore, the pool cover has an arched structure with the top center arching upwards, and its top is provided with an installation port for installing a stirring device, and the installation port is provided with an installation port cover.

[0019] The arched structure of the pool cover facilitates the downward flow of rainwater, which collects in the drainage channel, preventing rainwater from remaining.

[0020] Furthermore, the pool cover is provided with an observation window and an exhaust pipe with a valve.

[0021] Compared with the prior art, the sliding mud pit cover of this utility model has the following advantages:

[0022] (1) The sliding mud tank cover of this utility model has a reasonable structural design. The tank cover and the cover seat are slidably connected. The tank cover is driven to slide by the sliding drive unit to realize opening and closing. It is convenient to operate, reduces manual intervention, and reduces labor intensity. The tank cover is equipped with a drainage groove and a drainage connection port to drain rainwater in time and avoid residual corrosion of the tank cover.

[0023] (2) The sliding mud tank cover of this utility model adopts a sliding drive unit and a sliding guide unit for sliding drive operation, making the opening and closing process more stable; the tank cover adopts an arched structure, combined with a drainage channel, which can quickly drain the rainwater on the tank cover and prevent residue. Attached Figure Description

[0024] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0025] Figure 1 This is a schematic diagram of the front internal structure of the sliding mud pit cover according to an embodiment of the present invention;

[0026] Figure 2 for Figure 1 Enlarged view of point A;

[0027] Figure 3 for Figure 1 Enlarged view of point B;

[0028] Figure 4 This is a schematic diagram of the internal structure of the sliding mud pit cover according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the front external structure of the sliding mud pit cover according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the external side structure of the sliding mud pit cover according to an embodiment of the present invention;

[0031] Figure 7 This is a top view of the external structure of the sliding mud pit cover according to an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1-Cover, 2-Pool cover, 3-Sliding drive unit, 4-Sliding guide unit, 5-Flange frame, 6-Support edge, 7-Observation window, 8-Exhaust pipe port, 9-Mounting port, 10-Mating edge, 11-Slider, 12-Drainage groove, 13-Drainage mating pipe port, 14-Mounting plate one, 15-Drive motor, 16-Lead screw, 17-Fixed seat one, 18-Moving plate one, 19-Mounting plate two, 20-Fixed seat two, 21-Guide rod, 22-Cover, 23-Moving plate two, 24-Cover, 25-Slide rail, 26-Connecting plate. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0035] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] like Figures 1 to 7 As shown, a sliding mud pit cover includes a cover base 1, a pit cover 2, a sliding drive unit 3, and a sliding guide unit 4;

[0039] The cover 1 has a rectangular frame structure in cross-section. Its bottom is detachably connected to the mud pit through the flange frame 5. Its top is provided with a support edge 6. The support edges 6 on the left and right sides are provided with sliding grooves arranged in the front and back directions.

[0040] The pool cover 2 is placed on the cover base 1; the pool cover 2 is provided with an observation window 7 and an exhaust pipe 8 with a valve; the pool cover 2 has an arched structure with the top center arched upwards, and its top is provided with an installation port 9 for installing a stirring device, and the installation port 9 is provided with an installation port cover; the bottom of the pool cover 2 is provided with a mating edge 10 that is adapted to the supporting edge 7, and the bottom of the mating edge 10 corresponding to the supporting edge 6 with a sliding groove is provided with a slider 11 that is adapted to the sliding groove and can move along the sliding groove; the upper end surface of the mating edge 10 is provided with a drainage groove 12 around the circumference, and the pool cover 2 is provided with a drainage connecting pipe 13 that communicates with the inner cavity of the drainage groove 12;

[0041] The sliding drive unit 3 is mounted on the left support edge 6; the sliding drive unit 3 includes a mounting plate 14 fixed to the side wall of the left support edge 6, a drive motor 15 fixed to one end of the mounting plate 14, a lead screw 16 driven by the drive motor 15 and arranged in the front-back direction, a fixed seat 17 fixed to the other end of the mounting plate 14, and a movable plate 18 connected to the lead screw nut on the lead screw 16; the tail end of the lead screw 16 is rotatably connected to the fixed seat 17; the movable plate 18 is fixed to the left mating edge 10;

[0042] The sliding guide unit 4 is installed on the right support edge 6; the sliding guide unit 4 includes a mounting plate 19 fixed to the side wall of the right support edge 6, two fixed seats 20 fixed to both ends of the mounting plate 19, a guide rod 21 fixed to the two fixed seats 20 in the front-back direction, a sliding sleeve sleeved on the guide rod 21, and a movable plate 23 connected to the sliding sleeve; the movable plate 23 is fixed to the right docking edge 10;

[0043] Both movable plate 18 and movable plate 23 are provided with a cover 24 covering the sliding drive unit 3 and the sliding guide unit 4; the cover 24 has a slide rail 25 arranged in the front-back direction on the side facing the docking edge 10. Movable plate 18 and movable plate 23 are located outside their respective covers 24 and are connected to the lead screw nut or sliding sleeve 22 on their respective lead screws 16 by a connecting plate 26 slidably inserted in the slide rail 25; the docking edges 10 on the left and right sides are provided with covers 22 that extend outward and cover the cover 24.

[0044] The working principle of the sliding mud pit cover of this utility model is as follows:

[0045] The drive motor 15 drives the lead screw 16 to rotate, and the lead screw nut drives the moving plate 18 to move in the front and back direction, thereby driving the pool cover 2 to move back and forth to realize the opening and closing operation. At the same time, during the movement of the pool cover 2, the pool cover 2 drives the moving plate 23 and the sliding sleeve 22 to move along the guide rod 21, which plays a role in improving the sliding stability. When it rains, the rainwater flows quickly along the surface of the arched pool cover 2 into the drainage channel 12, and then is discharged through the drainage connection port 13 to prevent rainwater from remaining.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sliding mud pit cover, characterized in that, include: The cover has a rectangular frame structure in cross-section. Its bottom is detachably connected to the mud pit through a flange frame. Its top is provided with a support edge, and the support edges on the left and right sides are provided with sliding grooves arranged in the front-back direction. A pool cover; the pool cover is mounted on the cover base; the bottom of the pool cover has a mating edge that adapts to the supporting edge, and the bottom of the mating edge corresponding to the supporting edge with the sliding groove has a slider that adapts to the sliding groove and can move along the sliding groove; the upper end face of the mating edge has a drainage groove around its circumference, and the pool cover has a drainage connection port that communicates with the inner cavity of the drainage groove. A sliding drive unit, the movable end of which is connected to the pool cover, drives the pool cover to slide in the front-back direction.

2. The sliding mud pit cover according to claim 1, characterized in that: The sliding drive unit is mounted on the left side support edge; the sliding drive unit includes a mounting plate fixed to the side wall of the left side support edge, a drive motor fixed to one end of the mounting plate, a lead screw driven by the drive motor and arranged in the front-rear direction, a fixed seat fixed to the other end of the mounting plate, and a movable plate connected to the lead screw nut on the lead screw; the tail end of the lead screw is rotatably connected to the fixed seat; the movable plate is fixed to the left side docking edge.

3. The sliding mud pit cover according to claim 2, characterized in that: It also includes a sliding guide unit, which is installed on the right side support edge; the sliding guide unit includes a second mounting plate fixed to the side wall of the right side support edge, two second fixed seats fixed to both ends of the second mounting plate, a guide rod fixed to the two second fixed seats in the front-back direction, a sliding sleeve sleeved on the guide rod, and a second movable plate connected to the sliding sleeve; the second movable plate is fixed to the right side docking edge.

4. The sliding mud pit cover according to claim 3, characterized in that: Both the first and second movable plates are provided with a cover housing that covers the sliding drive unit and the sliding guide unit; the cover housing has a slide rail arranged in the front-to-back direction on the side facing the docking edge; the first and second movable plates are located outside their respective covers and are connected to the lead screw nut or the sliding sleeve on their respective lead screws by a connecting plate slidably inserted in the slide rail.

5. The sliding mud pit cover according to claim 4, characterized in that: The mating edges on both the left and right sides are provided with covers that extend outward and cover the housing.

6. The sliding mud pit cover according to claim 1, characterized in that: The pool cover has an arched structure with the top center arching upwards, and its top is provided with an installation port for installing a stirring device, and the installation port is provided with an installation port cover.

7. The sliding mud pit cover according to claim 1, characterized in that: The pool cover is equipped with an observation window and an exhaust pipe with a valve.

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