An oil delivery hose with a leakage alarm device

Abstract

The present invention relates to the technical field of pipe fittings, and specifically to an oil delivery hose with a leakage alarm device. It includes a pipe fitting body, a sensing mechanism and a force-applying mechanism. Two adjacent pipe fitting bodies are fixedly connected by fastening bolts. A sensing mechanism and a force-applying mechanism are arranged between two adjacent fastening bolts. The distance between two adjacent flanges is monitored by the sensing mechanism. When the distance between the two flanges decreases, the force-applying mechanism applies a force to move the two flanges away from each other to avoid the flanges and gaskets from being squeezed and damaged. When the distance between the two flanges increases, the force-applying mechanism applies a force to move the two flanges closer to each other to avoid tearing and maintain good sealing. The greater the change in the distance between the two flanges, the greater the force applied. The problem of leakage at the connection position of two adjacent pipe fitting bodies in the prior art of oil delivery hoses during the oil transportation process is solved.

Description

Technical Field

[0001] The invention relates to the technical field of pipe fittings, and in particular to an oil delivery hose with a leakage alarm device. Background Art

[0002] The oil hose is a flexible pipeline specially used for transporting oil products. It is widely used in many fields such as petroleum, chemical industry, machinery manufacturing, automobile and marine transportation. In order to ensure the transportation of oil products, the oil hose needs to have high wear resistance, high aging resistance, flexibility, corrosion resistance and other properties.

[0003] The existing oil delivery hose will bend during use, but two adjacent hoses are connected by flanges, and a sealing gasket is arranged between the two flanges. When the pipeline is bent, the flanges at the concave position will squeeze each other, and the pressure of the flange on the sealing gasket will increase, which will cause the gasket to be damaged, while the distance between the flanges at the convex position will increase, and the sealing of the connection position will be reduced, resulting in oil leakage at the connection position, which not only pollutes the environment but also causes waste of oil. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention proposes an oil delivery hose with a leakage alarm device, which solves the leakage problem in the prior art caused by the flange being squeezed or torn when the oil delivery hose is bent.

[0005] The oil delivery hose with a leakage alarm device of the present invention adopts the following technical scheme, including:

[0006] The pipe body has flanges fixedly connected at both ends in the axial direction; the pipe body has multiple flanges closely arranged in the axial direction; a gasket is arranged between two flanges close to each other, and the two flanges close to each other are fixedly connected; in the initial state, in the circumferential direction of the pipe body, the distance between the two flanges close to each other is equal everywhere;

[0007] A plurality of sensing mechanisms are evenly arranged along the circumference of the pipe body, and the sensing mechanisms are used to monitor the distance between two adjacent flanges;

[0008] There are multiple force-applying mechanisms corresponding to the sensing mechanisms; the force-applying mechanisms are used to apply a force to two adjacent flanges at a certain position. When the distance between the two adjacent flanges increases, a force is applied to the flanges to move them closer to each other; when the distance between the two adjacent flanges decreases, a force is applied to the flanges to move them away from each other.

[0009] Optionally, the force applying mechanism includes a wedge block, a movable plate, an adjustment shaft, a first compression spring and a second compression spring;

[0010] The wedge block can move along the axial direction of the flange and can be connected to the pipe body in a radially movable manner along the flange; the wedge block is located on the side of the flange away from the gasket; the contact surface between the flange and the wedge block is an inclined surface; when the wedge block moves along the axial direction of the flange, the position on the flange connected to the wedge block moves synchronously with the wedge block;

[0011] The movable plate is fixedly connected to the wedge block; the movable plate extends along the radial direction of the flange;

[0012] The adjusting shaft extends along the axial direction of the flange, and the adjusting shaft passes through two movable plates adjacent to each other at the connecting position, and baffles are arranged at both ends of the adjusting shaft; the first compression spring and the second compression spring are both sleeved on the adjusting shaft; the first compression spring is located between the two movable plates; two second compression springs are arranged, which are respectively located on both sides of the first compression spring, and the second compression spring is located between the baffle and the movable plate; a transmission assembly is arranged between the sensing mechanism and the force-applying mechanism, and the transmission assembly is used to drive the wedge block to move radially along the flange, and the greater the distance change between the two adjacent flanges, the longer the distance the wedge block moves.

[0013] Optionally, a plurality of steel wires are evenly distributed along the circumferential direction on the outside of the pipe body, and the steel wires are laid on the pipe body along the axial direction of the pipe body.

[0014] Optionally, the sensing mechanism includes a mounting column, a sensing roller and a steel wire; a mounting column is respectively provided at the position where the two pipe bodies are connected to each other, the mounting column extends radially along the flange, and can be rotatably installed on the pipe body around its own axis, each mounting column is synchronously rotatably sleeved with a sensing roller, two ends of the steel wire are respectively wound around two corresponding sensing rollers on the same pipe body, and a torsion spring is provided between the mounting column and the pipe body, which keeps the steel wire in a tensioned state.

[0015] Optionally, the transmission assembly includes a synchronous plate and a transmission nut, and the synchronous plate is fixedly connected to the wedge block; a slide groove is provided on the synchronous plate, and the slide groove extends along the axial direction of the flange; the transmission nut is slidably installed in the slide groove, and a thread is provided on the mounting column, and the threads of two mounting columns located at corresponding positions on the same pipe body have opposite rotation directions; the transmission nut cooperates with the mounting column thread.

[0016] Optionally, the thickness of the flange near its own axis is greater than the thickness of the flange far from its own axis.

[0017] Optionally, two adjacent flanges are fixedly connected by fastening bolts and fastening nuts, and an induction mechanism is provided between the two adjacent fastening bolts.

[0018] Optionally, the outside of the oil delivery hose is wrapped with a sponge layer and an outer protective layer in sequence, and the outer protective layer is made of a waterproof material.

[0019] Optionally, a hose is provided in the sponge layer, the hose can be elastically deformed, and the steel wire passes through the hose.

[0020] Optionally, a cable is wound around the outside of the pipe body, and the cable is connected to a pulse signal transmitter and a receiver; the outside of the cable is covered with a conductive film, and the cable is arranged between the sponge layer and the outer sheath.

[0021] The beneficial effects of the present invention are as follows: an oil delivery hose with a leakage alarm device of the present invention comprises a pipe body, a sensing mechanism and a force-applying mechanism, two adjacent pipe bodies are fixedly connected by fastening bolts, a sensing mechanism and a force-applying mechanism are arranged between two adjacent fastening bolts, and the distance between two adjacent flanges is monitored by the sensing mechanism; when the distance between the two flanges decreases, the force-applying mechanism applies a force to move the two flanges away from each other to avoid the flanges and gaskets from being squeezed and damaged, and when the distance between the two flanges increases, the force-applying mechanism applies a force to move the two flanges closer to each other to avoid tearing and maintain good sealing. The problem of leakage at the connection position of two adjacent pipe bodies in the process of transporting oil products in the prior art of the oil delivery hose is solved.

[0022] Furthermore, the greater the distance between the two flanges changes, the greater the pulling force or pushing force applied. The present invention can match the magnitude of the force applied to the flanges according to actual conditions.

[0023] Furthermore, by providing a steel wire to improve the strength of the oil hose, and by providing a sponge layer and an outer protective layer on the outside of the pipe body, the oil can be absorbed in time when leakage occurs, avoiding environmental pollution and energy waste. By providing a cable with a conductive film, the location of the leakage can be detected in time and the leakage can be handled in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of an oil delivery hose with a leakage alarm device according to the present invention;

[0026] Figure 2 It is a front view of an oil delivery hose with a leakage alarm device according to the present invention;

[0027] Figure 3 for Figure 2 Middle AA section cutaway view;

[0028] Figure 4 for Figure 3 Enlarged image at the center X;

[0029] Figure 5 This is a schematic structural diagram of an oil delivery hose with a leakage alarm device according to the present invention after the sponge layer and the cable are removed;

[0030] Figure 6 for Figure 5 Enlarged view of Y in the middle;

[0031] Figure 7 When the pipe body of the present invention is bent Figure 5 Schematic diagram of the state of the structure.

[0032] In the figure:

[0033] 100, pipe fitting body; 110, flange; 111, fastening bolt; 112, fastening nut; 113, guide groove; 120, sponge layer; 130, cable;

[0034] 200, sensing mechanism; 210, sensing roller; 220, steel wire; 221, hose; 230, mounting column; 231, torsion spring;

[0035] 300, force-applying mechanism; 310, wedge block; 311, convex block; 320, movable plate; 330, adjusting shaft; 331, baffle plate; 340, first compression spring; 350, second compression spring; 360, synchronous plate; 361, slide groove; 370, transmission nut. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] like Figures 1 to 7 As shown, an oil delivery hose with a leakage alarm device provided by an embodiment of the present invention includes a pipe body 100 , a sensing mechanism 200 and a force applying mechanism 300 .

[0038] Both ends of the pipe body 100 in the axial direction are fixedly connected with flanges 110; the pipe body 100 is closely arranged with multiple flanges 110 in the axial direction; a gasket is arranged between two flanges 110 close to each other, and the two flanges 110 close to each other are fixedly connected; in the initial state, in the circumferential direction of the pipe body 100, the distance between the two flanges 110 close to each other is equal everywhere;

[0039] A plurality of sensing mechanisms 200 are evenly distributed along the circumference of the pipe body 100 , and the sensing mechanisms 200 are used to monitor the distance between two adjacent flanges 110 ;

[0040] There are multiple force-applying mechanisms 300 corresponding to the sensing mechanisms 200; the force-applying mechanisms 300 are used to apply a force to two adjacent flanges 110 at a certain position. When the distance between the two adjacent flanges 110 increases, a force is applied to the flanges 110 to move them closer to each other; when the distance between the two adjacent flanges 110 decreases, a force is applied to the flanges 110 to move them away from each other.

[0041] In the process of transporting oil, the pipe body 100 will bend when subjected to external force, and the distance between the two flanges 110 at the concave position will decrease, while the distance between the two flanges 110 at the convex position will increase. The present invention sets a plurality of sensing mechanisms 200 on the circumference of the pipe body 100 to monitor the distance between two adjacent flanges 110 at any time. When the flange 110 is bent, the plurality of sensing mechanisms 200 synchronously detect the change in the distance between the two adjacent flanges 110, and apply force to the corresponding positions of the two adjacent flanges 110 through the corresponding force-applying mechanisms 300, so as to apply a force to the two flanges 110 that are far away from each other to move them closer to each other, thereby avoiding tearing and maintaining good sealing. Applying a force to the two flanges 110 that are close to each other to move them away from each other avoids the flanges 110 and the gasket from being squeezed and damaged, thereby solving the problem of leakage at the connection position of the two adjacent pipe bodies 100 in the prior art when the oil pipe is transporting oil.

[0042] In a further embodiment, the force applying mechanism 300 includes a wedge block 310 , a moving plate 320 , an adjustment shaft 330 , a first compression spring 340 , and a second compression spring 350 ;

[0043] The wedge block 310 can move axially along the flange 110, and can be connected to the pipe body 100 in a radially movable manner along the flange 110; the wedge block 310 is located on the side of the flange 110 away from the gasket; the contact surface between the flange 110 and the wedge block 310 is an inclined surface; while the wedge block 310 moves axially along the flange 110, the position on the flange 110 connected with the wedge block 310 moves synchronously with the wedge block 310; a plurality of guide grooves 113 are evenly distributed around the flange 110, and the guide grooves 113 are inclinedly arranged, and the inclination degree of the contact surface between the flange 110 and the wedge block 310 is consistent with the inclination degree of the guide grooves 113; the cross section of the guide grooves 113 is "T"-shaped; the inclined surface of the wedge block 310 is fixedly connected with an inclined "T"-shaped protrusion 311; the protrusion 311 is slidably installed in the guide groove 113;

[0044] The movable plate 320 is fixedly connected to the wedge block 310; the movable plate 320 extends along the radial direction of the flange 110;

[0045] The adjusting shaft 330 extends axially along the flange 110, and passes through two adjacent movable plates 320 located at the connecting position, and baffles 331 are arranged at both ends of the adjusting shaft 330; the first compression spring 340 and the second compression spring 350 are both sleeved on the adjusting shaft 330; the first compression spring 340 is located between the two movable plates 320; there are two second compression springs 350, which are respectively located on both sides of the first compression spring 340, and the second compression spring 350 is located between the baffle 331 and the movable plate 320; a transmission assembly is arranged between the sensing mechanism 200 and the force applying mechanism 300, and the transmission assembly is used to drive the wedge block 310 to move radially along the flange 110, and the greater the distance change between the two adjacent flanges 110, the longer the distance the wedge block 310 moves.

[0046] In the initial state, the two wedge blocks 310 maintain a preset distance between them. When the pipe body 100 is bent, Figure 7 The material of the concave position of the pipe body 100 is compressed, the length of the pipe body 100 is reduced, and the two flanges 110 (reference Figure 7 The distance between the opposite end faces of the two flanges 110 is reduced, and the sensing mechanism 200 detects the change in the distance between the two flanges 110, and drives the wedge block 310 to move radially outward along the flange 110 through the transmission component. At the same time, under the action of the guide groove 113, the two wedge blocks 310 approach each other. In this process, the first compression spring 340 is compressed and stores force. When the first compression spring 340 releases the elastic force, it applies a thrust to the two moving plates 320 to move away from each other, thereby causing the two wedge blocks 310 to apply a pulling force to the two flanges 110 to move away from each other, thereby avoiding damage to the flanges and gaskets due to excessive pressure.

[0047] Accordingly, at the convex position (refer to Figure 7 The pipe body 100 at the upper part of the pipe body 100 is stretched, the length of the pipe body 100 increases, and the distance between the opposite end faces of the two adjacent flanges 110 increases. The sensing mechanism 200 at this position detects the change in the distance between the two flanges 110, and drives the wedge block 310 to move radially inward along the flange 110 through the transmission component. At the same time, under the action of the guide groove 113, the two wedge blocks 310 are moved away from each other; at the same time, the two second compression springs 350 are compressed and stored. When the two second compression springs 350 release their elastic force, they respectively apply a thrust to the two moving plates 320 to move closer to each other, thereby causing the two wedge blocks 310 to apply a thrust to the two flanges 110 to move closer to each other, thereby avoiding tearing and causing oil leakage.

[0048] In a further embodiment, a plurality of steel wires 220 are evenly distributed along the circumferential direction on the outside of the pipe body 100, and the steel wires 220 are laid on the pipe body 100 along the axial direction of the pipe body 100, thereby improving the strength of the oil delivery hose.

[0049] In a further embodiment, the sensing mechanism 200 includes a mounting column 230, a sensing roller 210 and a steel wire 220; a mounting column 230 is respectively provided at the position where the two pipe bodies 100 are connected to each other, the mounting column 230 extends radially along the flange 110, and can be rotatably installed on the pipe body 100 around its own axis, each mounting column 230 is synchronously rotatably sleeved with a sensing roller 210, both ends of the steel wire 220 are respectively wound around two corresponding sensing rollers 210 on the same pipe body 100, and a torsion spring 231 is provided between the mounting column 230 and the pipe body 100, and the torsion spring 231 keeps the steel wire 220 in a tensioned state.

[0050] In the process of transporting oil, when the oil pipe bends, the concave position of the pipe body 100 is compressed, and the length of the concave surface of the pipe body 100 is reduced. Under the action of the torsion spring 231, the two induction rollers 210 rotate at the same time to tighten the steel wire 220; while the material on the convex surface of the pipe body 100 is stretched, and the length of the convex surface of the pipe body 100 increases, and the two induction rollers 210 rotate to release the steel wire 220.

[0051] In the above process, when the distance between two adjacent flanges 110 changes, the sensing roller 210 rotates around its own axis, and the greater the distance change, the greater the rotation angle of the sensing roller 210. The rotation direction of the sensing roller 210 at the concave position is opposite to the rotation direction of the sensing roller 210 at the convex position. Therefore, the distance change between the two adjacent flanges 110 can be detected according to the rotation direction and rotation angle of the sensing roller 210. Thereafter, the transmission component drives the force applying mechanism 300 to apply pressure or tension to the two flanges 110 accordingly according to the obtained data, so that the interaction force between the two adjacent flanges 110 in the circumferential direction tends to be consistent, thereby ensuring good sealing while avoiding damage to the gasket.

[0052] In a further embodiment, the transmission assembly includes a synchronous plate 360 ​​and a transmission nut 370, and the synchronous plate 360 ​​is fixedly connected to the wedge block 310; a slide groove 361 is opened on the synchronous plate 360, and the slide groove 361 extends along the axial direction of the flange 110; the transmission nut 370 is slidably installed in the slide groove 361, and a thread is provided on the mounting column 230, and the thread rotation directions of the two mounting columns 230 located at corresponding positions on the same pipe body 100 are opposite; the transmission nut 370 is threadedly matched with the mounting column 230.

[0053] When the pipe body 100 is bent, the distance between the two flanges 110 at the concave position decreases, and the induction roller 210 reels the steel wire 220; the distance between the two flanges 110 at the convex position increases, and the induction roller 210 releases the steel wire 220; when the induction roller 210 rotates, the transmission nut 370 moves along the axis of the mounting column 230, and the synchronous plate 360 ​​moves synchronously with the transmission nut 370, thereby driving the wedge block 310 to move synchronously. Under the action of the guide groove 113, the wedge block 310 moves axially while moving radially relative to the flange 110, thereby driving the moving plate 320 to move axially along the flange 110. The greater the bending degree of the pipe body 100, the greater the length of the steel wire 220 to be reeled or released, and the greater the distance the wedge block 310 moves driven by the transmission nut 370 and the synchronous plate 360.

[0054] In a further embodiment, the thickness of the flange 110 near its own axis is greater than the thickness of the flange 110 away from its own axis. This inclined surface arrangement makes the connection strength between the flange 110 and the pipe body 100 higher, thereby preventing the connection between the pipe body 100 and the flange 110 from being damaged and causing oil leakage.

[0055] In a further embodiment, two adjacent flanges 110 are fixedly connected by fastening bolts 111 and fastening nuts 112 , and a sensing mechanism 200 is disposed between the two adjacent fastening bolts 111 .

[0056] In a further embodiment, the outside of the oil hose is sequentially wrapped with a sponge layer 120 and an outer protective layer, and the outer protective layer is made of a waterproof material. Thus, while reducing the density of the oil hose, it is waterproof. When transporting oil at sea, the pipe body 100 can float on the sea surface, and once the oil hose leaks, the sponge layer 120 can quickly absorb the leaked oil, reducing environmental pollution caused by the leakage of the oil hose. By setting the waterproof layer, seawater is prevented from infiltrating the sponge layer 120.

[0057] In a further embodiment, a hose 221 is provided in the sponge layer 120, and the hose 221 can be elastically deformed, and the steel wire 220 passes through the hose 221. This prevents the steel wire 220 from damaging the sponge layer 120 when it is rolled up or released.

[0058] In a further embodiment, a cable 130 is wound around the outside of the pipe body 100, and the cable 130 is connected to a pulse signal transmitter and a receiver; the cable 130 is covered with a conductive film, and the cable 130 is arranged between the sponge layer 120 and the outer sheath. When leakage occurs, the oil contacts the conductive film through the sponge layer 120, and the conductive film melts and loses conductivity. After the pulse signal transmitter transmits a signal, the circuit is cut off at the place where the film melts, and the receiver can detect the specific location of the leakage according to the received pulse signal.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil delivery hose with a leakage alarm device, characterized in that: include: The pipe body has flanges fixedly connected at both ends in the axial direction; the pipe body has multiple flanges closely arranged in the axial direction; a gasket is arranged between two flanges close to each other, and the two flanges close to each other are fixedly connected; in the initial state, in the circumferential direction of the pipe body, the distance between the two flanges close to each other is equal everywhere; A plurality of sensing mechanisms are evenly arranged along the circumference of the pipe body, and the sensing mechanisms are used to monitor the distance between two adjacent flanges; A plurality of force-applying mechanisms are provided corresponding to the sensing mechanisms; the force-applying mechanisms are used to apply force to two adjacent flanges at a certain position, and when the distance between the two adjacent flanges increases, a force is applied to the flanges to move closer to each other; When the distance between two adjacent flanges decreases, a force is applied to the flanges to move away from each other; The force applying mechanism includes a wedge block, a moving plate, an adjusting shaft, a first compression spring and a second compression spring; The wedge block can move along the axial direction of the flange and can be connected to the pipe body in a radially movable manner along the flange; the wedge block is located on the side of the flange away from the gasket; the contact surface between the flange and the wedge block is an inclined surface; when the wedge block moves along the axial direction of the flange, the position on the flange connected to the wedge block moves synchronously with the wedge block; The movable plate is fixedly connected to the wedge block; the movable plate extends along the radial direction of the flange; The adjusting shaft extends along the axial direction of the flange, and the adjusting shaft passes through two movable plates adjacent to each other at the connecting position, and baffles are arranged at both ends of the adjusting shaft; the first compression spring and the second compression spring are both sleeved on the adjusting shaft; the first compression spring is located between the two movable plates; two second compression springs are arranged, which are respectively located on both sides of the first compression spring, and the second compression spring is located between the baffle and the movable plate; a transmission assembly is arranged between the sensing mechanism and the force-applying mechanism, and the transmission assembly is used to drive the wedge block to move radially along the flange, and the greater the distance change between the two adjacent flanges, the longer the distance the wedge block moves.

2. The oil delivery hose with a leakage alarm device according to claim 1, characterized in that: A plurality of steel wires are evenly distributed along the circumferential direction on the outside of the pipe body, and the steel wires are laid on the pipe body along the axial direction of the pipe body.

3. The oil delivery hose with a leakage alarm device according to claim 2, characterized in that: The sensing mechanism includes a mounting column, a sensing roller and a steel wire; a mounting column is respectively arranged at the position where the two pipe bodies are connected to each other, the mounting column extends along the radial direction of the flange, the mounting column is rotatably mounted on the pipe body, and the rotation axis is its own axis; each mounting column is synchronously rotatably sleeved with a sensing roller, the two ends of the steel wire are respectively wound around two corresponding sensing rollers on the same pipe body, a torsion spring is arranged between the mounting column and the pipe body, and the torsion spring keeps the steel wire in a tensioned state.

4. The oil delivery hose with a leakage alarm device according to claim 3, characterized in that: The transmission assembly includes a synchronous plate and a transmission nut. The synchronous plate is fixedly connected to the wedge block. A slide groove is provided on the synchronous plate, and the slide groove extends along the axial direction of the flange. The transmission nut is slidably installed in the slide groove, and a thread is provided on the mounting column. The threads of the two mounting columns located at corresponding positions on the same pipe body have opposite rotation directions. The transmission nut cooperates with the mounting column thread.

5. The oil delivery hose with a leakage alarm device according to claim 4, characterized in that: The thickness of the flange near its own axis is greater than the thickness away from its own axis.

6. The oil delivery hose with a leakage alarm device according to claim 1, characterized in that: Two adjacent flanges are fixedly connected by fastening bolts and fastening nuts, and an induction mechanism is arranged between the two adjacent fastening bolts.

7. The oil delivery hose with a leakage alarm device according to claim 1, characterized in that: The outside of the oil delivery hose is wrapped with a sponge layer and an outer protective layer in sequence, and the outer protective layer is made of waterproof material.

8. The oil delivery hose with a leakage alarm device according to claim 7, characterized in that: A hose is arranged in the sponge layer, and a steel wire passes through the hose. When the steel wire is bent, the hose is elastically deformed.

9. The oil delivery hose with a leakage alarm device according to claim 8, characterized in that: A cable is wound around the outside of the pipe body, and the cable is connected with a pulse signal transmitter and a receiver; the outside of the cable is covered with a conductive film, and the cable is arranged between the sponge layer and the outer sheath.

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