Quick leaking stoppage device for hydraulic pipeline of coal mine machinery

Abstract

The invention relates to a quick leaking stoppage device for a hydraulic pipeline of coal mine machinery, and discloses a quick leaking stoppage device which fixes a fixing plate on the hydraulic pipeline through a connecting piece and a ribbon body, realizes sealing through the close fit of a sealing ring with the inner side surface of the hydraulic pipeline by inflating and expanding, and further prevents liquid from overflowing by virtue of the multi-layer arrangement of sealing strips. The invention discloses a cable tie which is characterized by comprising a fixing plate, a filling layer, a supporting column, a sealing ring, a sealing strip, a one-way air valve, a connecting piece, a cable tie body and a locking head, the filling layer is arranged in the fixing plate, one end of the supporting column is fixedly connected with the inner arc face of the middle of the fixing plate, and the inner side face of the sealing ring is fixedly connected with the side face from one end to four fifths of the supporting column; the sealing strip is fixedly arranged on the inner arc face of the fixing plate, one end of the one-way air valve is arranged in the sealing ring, the connecting piece is fixedly arranged on the outer arc face of the fixing plate and arranged close to the two ends, the two ends of the connecting piece are fixedly connected with the outer arc face of the fixing plate, and the locking head is fixedly arranged on the side face, close to one end, of the ribbon body.

Description

Technical Field

[0001] The invention discloses a quick leak-plugging device for hydraulic pipelines of coal mine machinery, which relates to a leak-plugging device capable of quickly and efficiently plugging leaks in hydraulic pipelines, and belongs to the technical field of coal mine machinery maintenance, and in particular relates to a quick leak-plugging device in which a fixing plate is fixed to a hydraulic pipeline by a connecting piece and a cable tie body, a sealing ring is inflated and expanded to closely cooperate with an inner side surface of the hydraulic pipeline to achieve sealing, and a multi-layer arrangement of sealing strips is used to further prevent liquid from overflowing. Background Art

[0002] In the field of coal mining, hydraulic pipelines are key components for transmitting power, and their stable operation is crucial. However, the existing hydraulic pipeline plugging technology has many drawbacks. First, there are serious defects in the selection of materials. Some existing products focus on strength and use all-metal materials, ignoring the sealing and buffering requirements, resulting in direct contact between metal and metal in actual use. Not only is the seal not tight, but it is also easy to cause component wear due to vibration. On the contrary, some products rely too much on a single rubber material for simple sealing, lacking effective support for the internal pressure of the pipeline. Under high-pressure conditions, rubber is easy to deform and break, and cannot maintain the plugging effect for a long time. Secondly, many plugging devices are extremely inconvenient to use. They require professional and complex tools to install. The operation steps are not only cumbersome, but also take a lot of time.

[0003] Publication No. CN116838875A discloses a high-pressure pipeline plugging device, which belongs to the technical field of plugging devices, a housing assembly, including a mounting member suitable for covering the outer circumferential surface of the high-pressure pipeline; a plugging assembly, including a fitting member arranged on the mounting member and fitted with the outer circumferential surface of the high-pressure pipeline; an anti-loosening assembly, including a clamping member arranged on the mounting member and connected to the plugging assembly in a transmission manner, the clamping member is used to fix the mounting member, and the force of the clamping member fixing the mounting member increases synchronously with the force of the water flow impact on the fitting member. The fitting member of the plugging assembly is first covered with the damaged part of the high-pressure pipeline by the mounting member, and the mounting member and the fitting member are pre-fixed by the clamping member of the anti-loosening assembly. When the force of the water flow impact on the fitting member is greater, the tendency of the clamping member to drive the mounting member to tighten is greater, and the fitting member fits more tightly with the outer circumferential surface of the high-pressure pipeline. The above-mentioned pipeline leak-proof device can only seal pipelines of fixed sizes. If there is a difference of even a few millimeters in the pipe diameter, or if the curvature of the pipeline changes due to the installation environment, it is necessary to find another suitable leak-proof tool, which greatly slows down the repair speed. Summary of the invention

[0004] In order to improve the above situation, the present invention provides a coal mine machinery hydraulic pipeline rapid plugging device, which provides a fixing plate fixed to the hydraulic pipeline through a connecting piece and a cable tie body, and achieves sealing by inflating the sealing ring and closely fitting with the inner side of the hydraulic pipeline, and further prevents liquid overflow with the help of a multi-layer setting of the sealing strip.

[0005] The invention discloses a coal mine mechanical hydraulic pipeline rapid plugging device, which is realized as follows: the coal mine mechanical hydraulic pipeline rapid plugging device is composed of a fixing plate, a filling layer, a support column, a sealing ring, a sealing strip, a one-way air valve, a connecting piece, a cable tie body and a locking head. The fixing plate is an arc-shaped plate structure, and the fixing plate is a hollow structure. Preferably, the fixing plate is made of metal The filling layer is placed inside the fixed plate, and the filling layer is in contact with each surface inside the fixed plate. Preferably, the filling layer is made of rubber. One end of the support column is fixedly connected to the inner arc surface in the middle of the fixed plate. The support column is a cylindrical structure. The diameter of the support column from one end to four fifths is smaller than the diameter from four fifths to the other end. Preferably, the support column is made of hard alloy. The inner side of the sealing ring is fixedly connected to the side of the support column from one end to four fifths, the sealing ring is a circular ring structure, and the inside of the sealing ring is a hollow structure. The sealing strip is fixedly placed on the inner arc surface of the fixed plate, the sealing strip is in a circular ring structure, and the sealing strip coincides with the central axis of the support column. There are multiple sealing strips, the multiple sealing strips are coaxially arranged, and the diameter values ​​of the multiple sealing strips increase equidistantly. Preferably, the sealing strip is made of rubber. One end of the one-way air valve is placed in the sealing ring. The one-way air valve is in an L-shaped structure. The one-way air valve extends from one end into the support column, bends and passes through one end of the support column, the fixing plate and the filling layer in sequence to the outer side of the outer arc surface of the fixing plate. The connecting piece is fixedly placed on the outer arc surface of the fixing plate and is placed near both ends. The connecting piece is in a U-shaped structure. Both ends of the connecting piece are fixedly connected to the outer arc surface of the fixing plate. The connecting piece is provided with two groups. The two groups of connecting pieces correspond to both ends of the fixing plate one by one. The fixing plate is provided with a plurality of connecting pieces in each group. The plurality of connecting pieces in each group are arranged equidistantly along the axial direction of the fixing plate, and the plurality of connecting pieces in one group correspond to the plurality of connecting pieces in another group one by one. A locking head is fixed on the side of the cable tie body near one end. The other end of the cable tie body passes through the gap between one of the connectors in one group and the fixed plate, and the gap between the connector and the fixed plate in another group corresponding to the connector, and finally passes through the locking head. Each of the cable tie bodies corresponds to two connecting pieces, and the two connecting pieces are respectively placed close to the two ends of the fixing plate. The cable tie body can only slide in one direction in the locking head. Furthermore, an anti-bulge sealing hole is provided on the plane of the sealing strip not connected to the fixing plate, and each sealing strip is provided with a plurality of anti-bulge sealing holes, and the plurality of anti-bulge sealing holes in each group are arranged equidistantly along the circumference of the sealing strip. Furthermore, an auxiliary connection frame is fixed on the inner arc surface of the fixed plate, and the auxiliary connection frame is a square frame structure. The outer side surface of the auxiliary connection frame corresponds one-to-one to the planes around the fixed plate, and the corresponding surfaces are on the same plane. The auxiliary connection frame is made of the same material as the fixed plate, and the height of the auxiliary connection frame is less than the height of the sealing strip. Beneficial Effects

[0006] 1. The sealing ring is inflated and fits against the inner side of the hydraulic pipeline for sealing, and cooperates with the multi-layer coaxial sealing strip to seal the leaked liquid for the second time, which prevents liquid leakage in multiple ways and improves the sealing effect.

[0007] 2. The fixing plate and the hydraulic pipeline are fixed by the connector and the cable tie body. The operation is simple and the installation of the plugging device can be completed quickly, reducing the equipment downtime.

[0008] 3. By bending the fixing plate appropriately, it can adapt to pipes of different sizes. There is no need to stock a large number of plugging devices of different specifications, which greatly reduces costs and management difficulties and improves work efficiency.

[0009] 4. The overall weight is light, which is convenient for transportation and installation, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural diagram of a coal mine machinery hydraulic pipeline rapid leakage plugging device of the present invention; Figure 2 It is a structural schematic diagram of a coal mine machinery hydraulic pipeline rapid leak plugging device of the present invention; Figure 3 This is a three-dimensional structural diagram of Embodiment 2 of a coal mine machinery hydraulic pipeline rapid leak plugging device of the present invention, which only shows the structure of the sealing strip; Figure 4 It is a three-dimensional structural diagram of Example 3 of a coal mine machinery hydraulic pipeline rapid leak plugging device of the present invention. Attached photos

[0011] The components include: a fixing plate (1), a sealing strip (2), a sealing ring (3), a supporting column (4), a connecting piece (5), a cable tie body (6), a locking head (7), a filling layer (8), a one-way air valve (9), an anti-bulge sealing hole (10), and an auxiliary connecting frame (11). DETAILED DESCRIPTION Example 1

[0012] A coal mine machinery hydraulic pipeline rapid leak plugging device according to the present invention is implemented as follows: A coal mine machinery hydraulic pipeline rapid leak plugging device according to the present invention comprises a fixing plate (1), a filling layer (8), a support column (4), a sealing ring (3), a sealing strip (2), a one-way air valve (9), a connecting piece (5), a cable tie body (6) and a locking head (7). The fixing plate (1) is an arc-shaped plate-like structure, and the fixing plate (1) is a hollow structure. Preferably, the fixing plate (1) is made of metal The filling layer (8) is placed inside the fixed plate (1), and the filling layer (8) is in contact with each surface inside the fixed plate (1). Preferably, the filling layer (8) is made of rubber. One end of the support column (4) is fixedly connected to the inner arc surface in the middle of the fixed plate (1); the support column (4) is in a cylindrical structure; the diameter of the support column (4) from one end to four fifths is smaller than the diameter from four fifths to the other end. Preferably, the support column (4) is made of hard alloy. The inner side surface of the sealing ring (3) is fixedly connected to the side surface of the support column (4) from one end to four fifths, the sealing ring (3) is a circular ring structure, and the interior of the sealing ring (3) is a hollow structure. The sealing strip (2) is fixedly placed on the inner arc surface of the fixed plate (1), the sealing strip (2) is in a circular ring structure, and the sealing strip (2) coincides with the central axis of the support column (4). A plurality of the sealing strips (2) are provided, the plurality of the sealing strips (2) are coaxially arranged, and the diameter values ​​of the plurality of the sealing strips (2) increase equidistantly. Preferably, the sealing strip (2) is made of rubber. One end of the one-way air valve (9) is placed in the sealing ring (3). The one-way air valve (9) is in an L-shaped structure. The one-way air valve (9) extends from one end into the support column (4), bends, and sequentially passes through one end of the support column (4), the fixing plate (1), and the filling layer (8) to the outside of the outer arc surface of the fixing plate (1). The connecting member (5) is fixedly placed on the outer arc surface of the fixing plate (1) and is placed near both ends. The connecting member (5) is of a U-shaped structure. Both ends of the connecting member (5) are fixedly connected to the outer arc surface of the fixing plate (1). The connecting member (5) is provided in two groups. The two groups of connecting members (5) correspond to both ends of the fixing plate (1) one by one. The fixing plate (1) is provided with a plurality of connecting members (5) in each group. The plurality of connecting members (5) in each group are arranged equidistantly along the axial direction of the fixing plate (1), and the plurality of connecting members (5) in one group correspond to the plurality of connecting members (5) in another group one by one. A locking head (7) is fixedly disposed on the side of the cable tie body (6) near one end. The other end of the cable tie body (6) sequentially passes through the gap between one connecting piece (5) and the fixing plate (1) in one group, and the gap between the connecting piece (5) and the fixing plate (1) in another group corresponding to the connecting piece (5), and finally passes through the locking head (7). Each of the cable tie bodies (6) corresponds to two connecting pieces (5), and the two connecting pieces (5) are respectively placed close to two ends of the fixing plate (1). The cable tie body (6) can only slide in one direction within the locking head (7). When in use, the fixing plate (1) is appropriately bent so that its curvature fits the side of the hydraulic pipeline, and the support column (4) is inserted into the hydraulic pipeline through the hole in the hydraulic pipeline, so that the inner side of the fixing plate (1) and the sealing strip (2) fit the outer side of the hydraulic pipeline. Subsequently, a plurality of cable tie bodies (6) are sequentially passed through the gap between the connecting pieces (5) at both ends of the fixing plate (1) and the fixing plate (1), and the other end of the cable tie body (6) is passed through the locking head (7) and tightened, so that the fixing plate (1) and the hydraulic pipeline are fixedly connected. Subsequently, air is injected into the sealing ring (3) using the one-way air valve (9). Due to the wall of the hydraulic pipeline, the fixing plate (1) is fixedly connected to the sealing ring (3). Between the fixing plate (1) and the sealing ring (3), as air is injected, the sealing ring (3) will gradually expand until it is tightly fitted against the inner side of the hydraulic pipeline. At the same time, the tight fit between the plurality of sealing strips (2) and the hydraulic pipeline can also play a secondary sealing role. Even if a small amount of liquid leaks out from the hole, it can be blocked by the sealing strips (2) to prevent overflow. Finally, after the installation is completed, the fixing plate (1) is welded to the outer side of the hydraulic pipeline through a welding process, so that the fixing plate (1) is firmly placed on the outer side of the hydraulic pipeline. Even in the face of a large internal pressure, the plugging effect will not be easily affected, thereby ensuring the normal operation of the hydraulic pipeline. Example 2

[0013] The difference between this embodiment and embodiment 1 is that: an anti-bulge sealing hole (10) is formed on the plane of the sealing strip (2) that is not connected to the fixing plate (1), and each of the sealing strips (2) is provided with a plurality of anti-bulge sealing holes (10). The plurality of anti-bulge sealing holes (10) in each group are arranged equidistantly along the circumference of the sealing strip (2). When in use, the anti-bulge sealing holes (10) can cleverly adapt to the unevenness of the outer surface of the hydraulic pipeline. Since slight particles may be attached to the outer surface of the hydraulic pipeline, the anti-bulge sealing holes (10) can accommodate these particles, thereby ensuring that the sealing strip (2) can fit tightly to the hydraulic pipeline, thereby ensuring that the sealing effect is not affected. Example 3

[0014] The difference between this embodiment and embodiment 1 is that an auxiliary connection frame (11) is fixedly mounted on the inner arc surface of the fixing plate (1), the auxiliary connection frame (11) is in a square frame structure, the outer side surface of the auxiliary connection frame (11) corresponds one-to-one with the planes around the fixing plate (1), and the corresponding surfaces are on the same plane, the auxiliary connection frame (11) and the fixing plate (1) are made of the same material, the height of the auxiliary connection frame (11) is less than the height of the sealing strip (2), and when in use, when the fixing plate (1) and the hydraulic pipeline are welded, the gap between the fixing plate (1) and the outer side surface of the hydraulic pipeline is reduced by the auxiliary connection frame (11), the diffusion path of the metal atoms is shorter, and a uniform metal bonding layer can be formed more quickly, thereby improving the strength and toughness of the welded joint; The fixed plate (1) is designed in an arc-shaped plate structure, which can better fit the outer surface of the hydraulic pipeline, increase the contact area with the hydraulic pipeline, thereby providing a more stable support and sealing effect, and can adapt to pipelines of different sizes. The staff only needs to bend the fixed plate (1) appropriately according to the actual situation and cleverly change the curvature to make it accurately adapt to the new pipeline size, thereby greatly improving work efficiency. The fixing plate (1) is designed as a hollow structure, which reduces the weight of the fixing plate (1) while ensuring a certain strength, thereby facilitating installation and operation; The fixing plate (1) is made of metal and has high strength and hardness, and is able to withstand the pressure inside the hydraulic pipeline, thereby ensuring the stability and reliability of the leak-proof device during use and not being easily deformed or damaged. The filling layer (8) is placed inside the fixing plate (1), and the filling layer (8) fits with the internal surfaces of the fixing plate (1). The filling layer (8) is made of rubber material and does not add too much extra weight to the entire plugging device. When the fixing plate (1) is subjected to external force, the force can be more evenly distributed on the entire plate surface, thereby maintaining the shape and structural stability of the fixing plate (1), ensuring that the plugging device can function normally and maintain a good sealing effect and fixing effect. The design of the support column (4) having a diameter from one end to four fifths smaller than the diameter from four fifths to the other end can limit the sealing ring (3), so that the sealing ring (3) is located between the support column (4) and the fixing plate (1), so that after the sealing ring (3) is inflated, the sealing ring (3) will expand toward the inner side surface of the hydraulic pipeline, closely fit with the pipe wall of the hydraulic pipeline, and form an effective sealing space, thereby blocking the leak and preventing the internal liquid from flowing out through the leak; The support column (4) is designed to be made of hard alloy, has high hardness and good wear resistance, and can withstand the scouring and wear of the liquid inside the hydraulic pipeline, thereby ensuring the long-term stability and reliability of the support column (4); The sealing ring (3) is designed to be annular in structure and hollow inside, and cooperates with the support column (4). After air is injected through the one-way air valve (9), it can expand and fit tightly to the inner side of the hydraulic pipeline, forming an effective seal to prevent the internal liquid from flowing out through the hole. A plurality of the sealing strips (2) are provided, the plurality of the sealing strips (2) are coaxially arranged, and the diameter values ​​of the plurality of the sealing strips (2) are designed to increase equidistantly. The plurality of sealing strips (2) can form a multi-layer seal with the outer surface of the hydraulic pipeline. Even if a small amount of liquid leaks from the leak, it can be blocked by the sealing strips (2), thereby further enhancing the sealing effect and improving the reliability of leak plugging. The sealing strip (2) is designed to be made of rubber material, and utilizes the elasticity and flexibility of rubber to better fit the surface of the pipeline and achieve a sealing function; One end of the one-way air valve (9) is placed in the sealing ring (3). The one-way air valve (9) is in an L-shaped structure. The one-way air valve (9) extends from one end into the support column (4), bends, and sequentially passes through one end of the support column (4), the fixing plate (1), and the filling layer (8) to the outer side of the outer arc surface of the fixing plate (1). This design facilitates operators to inject air into the sealing ring (3) through an external air source to achieve expansion sealing of the sealing ring (3), and the operation is simple and convenient. The connecting piece (5) is fixedly placed on the outer arc surface of the fixing plate (1) and is placed close to both ends. The connecting piece (5) has a U-shaped structure. The design of the two ends of the connecting piece (5) being fixedly connected to the outer arc surface of the fixing plate (1) can facilitate the cable tie body (6) to pass through, thereby achieving a fixed connection between the fixing plate (1) and the hydraulic pipeline. The two groups of connecting members (5) are respectively placed near the two ends of the fixing plate (1) and are arranged equidistantly and one-to-one, so that the cable tie body (6) can be evenly distributed on the fixing plate (1), ensuring that the fixing plate (1) is evenly stressed and fixed more firmly and stably; The cable tie body (6) is fixedly provided with a locking head (7) on the side near one end thereof, and is designed to be able to slide in only one direction. By tightening the cable tie body (6), the fixing plate (1) and the hydraulic pipeline can be closely fitted together, and the cable tie will not loosen automatically after being tightened, thereby ensuring a fixing effect. The operation is simple, and the leak-proof device can be quickly installed and fixed. The purpose is achieved by being able to fix the fixing plate (1) on the hydraulic pipeline through the connecting piece (5) and the cable tie body (6), achieving sealing by inflating the sealing ring (3) to closely cooperate with the inner side surface of the hydraulic pipeline, and further preventing liquid from overflowing by virtue of the multi-layer arrangement of the sealing strip (2).

[0015] It should be noted that, unless otherwise clearly specified and limited, the terms "placed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection method such as a folding connection, a rivet connection, a pin connection, a bonding connection and a welding connection, or a detachable connection method such as a threaded connection, a snap connection and a hinge connection, or an integral connection, or an electrical connection, or a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] It should be further pointed out that, when describing the above specific embodiment, for the sake of simplicity and clarity, only the differences between the above specific embodiment and other embodiments are described, but those skilled in the art should know that the above specific embodiment itself is also an independent technical solution.

Claims

1. A coal mine mechanical hydraulic pipeline rapid leak plugging device, characterized by: The utility model is composed of a fixed plate, a filling layer, a support column, a sealing ring, a sealing strip, a one-way air valve, a connecting piece, a cable tie body and a locking head, wherein the filling layer is placed in the fixed plate, one end of the support column is fixedly connected to the inner arc surface in the middle part of the fixed plate, the inner side surface of the sealing ring is fixedly connected to the side surface from one end to four-fifths of the support column, the sealing strip is fixedly placed on the inner arc surface of the fixed plate, one end of the one-way air valve is placed in the sealing ring, the connecting piece is fixedly placed on the outer arc surface of the fixed plate and is placed close to both ends, both ends of the connecting piece are fixedly connected to the outer arc surface of the fixed plate, a locking head is fixedly placed on the side of the cable tie body near one end, and the other end of the cable tie body passes through the gap between one connecting piece and the fixed plate in a group and the gap between the connecting piece and the fixed plate in another group corresponding to the connecting piece in turn, and finally passes through the locking head.

2. A coal mine machinery hydraulic pipeline rapid leak plugging device according to claim 1, characterized in that The sealing strip has anti-bulge sealing holes on the plane not connected to the fixed plate. Each sealing strip is provided with a plurality of anti-bulge sealing holes. The plurality of anti-bulge sealing holes in each group are arranged equidistantly along the circumference of the sealing strip.

3. A coal mine machinery hydraulic pipeline rapid leak plugging device according to claim 1, characterized in that An auxiliary connection frame is fixed on the inner arc surface of the fixed plate. The auxiliary connection frame is a square frame structure. The outer side surface of the auxiliary connection frame corresponds to the planes around the fixed plate one by one, and the corresponding surfaces are on the same plane. The auxiliary connection frame is made of the same material as the fixed plate, and the height of the auxiliary connection frame is less than the height of the sealing strip.

4. A coal mine machinery hydraulic pipeline rapid leak plugging device according to claim 1, characterized in that The fixing plate is an arc-shaped plate structure, the fixing plate is a hollow structure, the fixing plate is made of metal, and the filling layer is in contact with each surface inside the fixing plate.

5. A coal mine machinery hydraulic pipeline rapid leak plugging device according to claim 1, characterized in that The filling layer is made of rubber material, the support column is in a cylindrical structure, and the diameter of the support column from one end to four fifths is smaller than the diameter from four fifths to the other end.

6. A coal mine machinery hydraulic pipeline rapid leak plugging device according to claim 1, characterized in that The support column is made of hard alloy, the sealing ring is in a circular ring structure, and the interior of the sealing ring is a hollow structure.

7. A coal mine machinery hydraulic pipeline rapid leak plugging device according to claim 1, characterized in that The sealing strip is in a circular ring structure, and the sealing strip coincides with the central axis of the support column. There are multiple sealing strips, and the multiple sealing strips are coaxially arranged. The diameter values ​​of the multiple sealing strips increase equidistantly, and the sealing strip is made of rubber.

8. A coal mine machinery hydraulic pipeline rapid leak plugging device according to claim 1, characterized in that The one-way air valve is in an L-shaped structure. The one-way air valve extends from one end into the support column, bends and passes through one end of the support column, the fixing plate and the filling layer in sequence to the outside of the outer arc surface of the fixing plate. The connecting piece is in a U-shaped structure.

9. A coal mine machinery hydraulic pipeline rapid leak plugging device according to claim 1, characterized in that The connecting members are provided in two groups, and the two groups of connecting members correspond one-to-one to the two ends of the fixed plate. The fixed plate is provided with multiple connecting members in each group, and the multiple connecting members in each group are arranged equidistantly along the axial direction of the fixed plate, and the multiple connecting members in one group correspond one-to-one to the multiple connecting members in the other group.

10. A coal mine machinery hydraulic pipeline rapid leak plugging device according to claim 1, characterized in that Each of the cable tie bodies corresponds to two connecting pieces, and the two connecting pieces are respectively placed close to two ends of the fixing plate, and the cable tie body slides unidirectionally in the locking head.

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