Mud guard umbrella convenient to store
By designing an easy-to-store integrated mudguard umbrella and utilizing a hydraulic cylinder to drive the support rod and movable sleeve structure, the problems of difficult installation and leakage of existing mudguard umbrellas have been solved, achieving safe and efficient mud treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN XINSHENG INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-04-21
AI Technical Summary
The existing mudguard is a two-part funnel shape, which requires bolts to fix during installation. Over time, the bolts rust, making disassembly and assembly difficult and unsafe, leading to mud leakage and contamination and corrosion of the wellhead equipment.
A mudguard umbrella designed for easy storage uses an integrated mudguard fabric. The mudguard fabric can be unfolded and stored by a hydraulic cylinder driving the support rod and movable sleeve structure. The mudguard fabric is stably supported by PVC knife-coated fabric and the cooperation of the support rod and movable rod to prevent leakage.
The mudguard umbrella was made easy to install and remove, reducing the risks of working at heights, preventing mud leakage, and improving the mudguarding effect and the practicality of the device.
Smart Images

Figure CN224149530U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oilfield drilling engineering technology, and in particular to a mudguard umbrella that is easy to store. Background Technology
[0002] During oil drilling, an overflow preventer needs to be installed above the blowout preventer (BOP) at the wellhead to guide drilling mud from the bottom of the well to the surface mud tank. Because drilling mud has highly unstable viscosity and shear strength, poor fluidity, and large bottom-hole pressure differentials, mud can overflow from the drill string's water holes, causing contamination and corrosion of the BOP and other wellhead equipment, making cleaning difficult. Currently, the common solution is to install a funnel-shaped mud shield at the top of the overflow preventer to catch the mud discharged from the drill string. The old-style mud shield installed on the overflow preventer is a two-part funnel shape, requiring bolts to fix it to the overflow preventer. Over time, the bolts rust, making disassembly and reassembly difficult, requiring workers to climb to heights, which is very unsafe. Furthermore, the two-part mud shield still causes some mud leakage, leading to contamination and corrosion of the wellhead equipment. Therefore, we propose a mud shield that is easy to store. Utility Model Content
[0003] To address the aforementioned problems, this invention provides a mudguard umbrella that is easy to store. This invention solves the problem of the old-style mudguard umbrellas installed on overflow pipes, which are two-part funnel-shaped and require bolts to fix them to the overflow pipe during installation. Over time, the bolts corrode, making disassembly and assembly difficult and requiring workers to climb to heights, which is very unsafe. Furthermore, the two-part mudguard umbrella still causes some mud leakage, leading to pollution and corrosion of the wellhead equipment.
[0004] This utility model discloses a mudguard umbrella that is easy to store, comprising a connecting pipe, an mounting pipe above the connecting pipe, a fixed flange fixedly connected to the upper part of the mounting pipe, a fixed flange fixedly connected to the upper end of the fixed flange, a plurality of matrix-arranged support plates on the mounting pipe, a hydraulic cylinder fixedly mounted above the support plates, a fixed ring on the outside of the fixed flange, a movable ring below the fixed ring on the mounting pipe, a fixed end of the hydraulic cylinder fixedly connected to the movable ring, a plurality of matrix-arranged first support rods on the outside of the fixed ring, the fixed ring and the first support rods being movably connected by pins, and the movable ring being... A first movable rod matching the first support rod is provided on the side. The first support rod is provided with a first movable sleeve. The first movable rod is movably connected to the first movable sleeve by a pin. The side of the first movable rod near the first support rod is movably connected to the second movable rod by a pin. The side of the second movable rod away from the first movable rod is movably connected to the second support rod by a pin. The second support rod is provided with a second movable sleeve. The first support rod is movably connected to the second movable sleeve by a pin. The upper part of the first movable sleeve is fixedly connected to the mudguard cloth. The end of the second support rod away from the second movable rod is fixedly connected to the mudguard cloth.
[0005] In the above scheme, the mudguard cloth is PVC knife-coated cloth.
[0006] In the above scheme, a return port is provided on one side of the upper end of the support plate.
[0007] In the above scheme, the upper end of the support plate is provided with a liquid inlet pipe on the side away from the return port, and a valve is provided on the liquid inlet pipe.
[0008] In the above scheme, a first connecting flange is provided at both ends of the connecting pipe, and a second connecting flange is provided below the mounting pipe. The first connecting flange and the second connecting flange are fixedly connected by bolts.
[0009] The advantages and beneficial effects of this utility model are as follows: This utility model provides a mudguard umbrella that is easy to store. A first support rod, a first movable rod, a first movable sleeve, a second support rod, a second movable rod, and a second movable sleeve constitute the support structure for the mudguard cloth. Through the mutual cooperation between the first support rod, the first movable rod, the first movable sleeve, the second support rod, the second movable rod, and the second movable sleeve, the mudguard cloth can be stored and unfolded. The mudguard cloth is an integral structure, which can effectively prevent mud leakage. This type of mudguard umbrella has a simple structure, is easy to open and close, has a good mud-blocking effect, and is easy to replace as a whole, effectively preventing mud leakage and improving the practicality of the mudguard umbrella. Attached Figure Description
[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a partial exploded structural diagram of the present invention;
[0013] Figure 3 This is a schematic diagram of part A of the present invention.
[0014] In the diagram: 1. Connecting pipe; 2. Mounting pipe; 3. Fixed flange; 4. Mudguard cloth; 5. Support plate; 6. Hydraulic cylinder; 7. Fixed ring; 8. Movable ring; 9. First support rod; 10. First movable rod; 11. First movable sleeve; 12. Second support rod; 13. Second movable rod; 14. Second movable sleeve; 15. Return port; 16. Inlet pipe; 17. Valve; 18. First connecting flange; 19. Second connecting flange. Detailed Implementation
[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0016] like Figure 1-3As shown, this utility model is a mudguard umbrella that is easy to store, including a connecting tube 1. An installation pipe 2 is provided above the connecting pipe 1. The installation pipe 2 is fixedly connected to a fixed flange 3. The upper end of the fixed flange 3 is fixedly connected to a mudguard cloth 4. Multiple support plates 5 arranged in a matrix are provided on the installation pipe 2. A hydraulic cylinder 6 is fixedly installed above the support plates 5. A fixed ring 7 is provided on the outer side of the fixed flange 3. A movable ring 8 is provided below the fixed ring 7 on the installation pipe 2. The stroke end of the hydraulic cylinder 6 is fixedly connected to the movable ring 8. When the hydraulic cylinder 6 is working, it can push the movable ring 8 to move vertically. Multiple first support rods 9 arranged in a matrix are provided on the outer side of the fixed ring 7. The fixed ring 7 and the first support rods 9 are movably connected by pins. A first movable rod 10 matching the first support rod 9 is provided on the outer side of the movable ring 8. A first movable sleeve 11 is provided on the first support rod 9. The first movable rod 10 is movably connected to the first movable sleeve 11 by a pin. The side of the first movable rod 10 closest to the first support rod 9 is movably connected to a second movable rod 13 by a pin. 3. The side away from the first movable rod 10 is movably connected to the second support rod 12 via a pin. The second support rod 12 is provided with a second movable sleeve 14. The first support rod 9 is movably connected to the second movable sleeve 14 via a pin. The first support rod 9, the first movable rod 10, the first movable sleeve 11, the second support rod 12, the second movable rod 13, and the second movable sleeve 14 constitute the support structure of the mudguard cloth 4. When the movable ring 8 moves vertically, the first support rod 9 rotates around the fixed ring 7, and the first movable rod 10 rotates around the fixed ring 7. The second movable rod 13 rotates around the first movable rod 10, and the second support rod 12 rotates around the second movable rod 13. Through the cooperation between the first support rod 9, the first movable rod 10, the first movable sleeve 11, the second support rod 12, the second movable rod 13, and the second movable sleeve 14, the mudguard cloth 4 can be stored and unfolded. The upper part of the first movable sleeve 11 is fixedly connected to the mudguard cloth 4, and the end of the second support rod 12 away from the second movable rod 13 is fixedly connected to the mudguard cloth 4.
[0017] The mudguard cloth 4 is a PVC knife-coated cloth, which is a new type of material made of polyester eccentric base cloth and PVC coating and dried. It has the characteristics of tear resistance, tensile strength and strong fastness, and can withstand greater tensile force without being easily damaged.
[0018] The support plate 5 has a return port 15 on one side of its upper end.
[0019] The upper end of the support plate 5 is provided with an inlet pipe 16 on the side away from the return port 15, and a valve 17 is provided on the inlet pipe 16.
[0020] Both ends of the connecting pipe 1 are provided with a first connecting flange 18, and the lower part of the mounting pipe 2 is provided with a second connecting flange 19. The first connecting flange 18 and the second connecting flange 19 are fixedly connected by bolts. The arrangement of the first connecting flange 18 and the second connecting flange 19 makes it easy to install and disassemble the connecting pipe 1 and the mounting pipe 2.
[0021] Specifically, in this utility model, the first support rod 9, the first movable rod 10, the first movable sleeve 11, the second support rod 12, the second movable rod 13, and the second movable sleeve 14 constitute the support structure of the mudguard cloth 4. When the hydraulic cylinder 6 is working, the hydraulic cylinder 6 can push the movable ring 8 to move vertically. When the movable ring 8 moves vertically, the first support rod 9 rotates around the fixed ring 7, the first movable rod 10 rotates around the movable ring 8, the second movable rod 13 rotates around the first movable rod 10, and the second support rod 12 rotates around the second movable rod 13. Through the mutual cooperation between the first support rod 9, the first movable rod 10, the first movable sleeve 11, the second support rod 12, the second movable rod 13, and the second movable sleeve 14, the mudguard cloth 4 can be stored and unfolded.
[0022] 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 mud umbrella which is convenient to store, comprising a connecting pipe (1), characterized in that, An installation pipe (2) is provided above the connecting pipe (1). The installation pipe (2) is fixedly connected to a fixed flange (3). The upper end of the fixed flange (3) is fixedly connected to a mudguard cloth (4). Multiple support plates (5) arranged in a matrix are provided on the installation pipe (2). A hydraulic cylinder (6) is fixedly installed above the support plate (5). A fixed ring (7) is provided on the outside of the fixed flange (3). A movable ring (8) is provided below the fixed ring (7) on the installation pipe (2). The stroke end of the hydraulic cylinder (6) is fixedly connected to the movable ring (8). Multiple first support rods (9) arranged in a matrix are provided on the outside of the fixed ring (7). The fixed ring (7) and the first support rods (9) are movably connected by a pin. A first movable ring (8) matching the first support rod (9) is provided on the outside of the movable ring (8). The first support rod (9) is provided with a first movable sleeve (11). The first movable rod (10) is movably connected to the first movable sleeve (11) by a pin. The side of the first movable rod (10) close to the first support rod (9) is movably connected to the second movable rod (13) by a pin. The side of the second movable rod (13) away from the first movable rod (10) is movably connected to the second support rod (12) by a pin. The second support rod (12) is provided with a second movable sleeve (14). The first support rod (9) is movably connected to the second movable sleeve (14) by a pin. The upper part of the first movable sleeve (11) is fixedly connected to the mudguard cloth (4). The end of the second support rod (12) away from the second movable rod (13) is fixedly connected to the mudguard cloth (4).
2. The mud umbrella of easy storage according to claim 1, wherein, The mudguard cloth (4) is a PVC knife-coated cloth.
3. The mud umbrella of claim 1, wherein, The support plate (5) has a return port (15) on one side of its upper end.
4. The mud umbrella of easy storage according to claim 3, wherein, The upper end of the support plate (5) is provided with an inlet pipe (16) on the side away from the return port (15), and a valve (17) is provided on the inlet pipe (16).
5. The mud umbrella of claim 1, wherein, The connecting pipe (1) is provided with a first connecting flange (18) at both ends, and a second connecting flange (19) is provided below the mounting pipe (2). The first connecting flange (18) and the second connecting flange (19) are fixedly connected by bolts.