Petroleum pipeline check valve

Abstract

The utility model discloses a petroleum pipeline check valve which comprises a check valve body and a supporting piece, the check valve body comprises a valve body, and a pair of connecting pipes are integrally formed at the two ends of the valve body; a pair of supporting pieces is arranged and installed on the pair of connecting pipes respectively, each supporting piece comprises a hoop assembly, the hoop assemblies are installed on the side walls of the connecting pipes in a hoop mode, the bottoms of the hoop assemblies are fixedly connected with supporting blocks, the bottoms of the supporting blocks are in threaded connection with supporting screw rods, and the supporting screw rods are in threaded connection with the supporting screw rods. And a supporting column is mounted at the lower end of the supporting screw rod. The supporting assembly is arranged to support the check valve, the supporting assembly is provided with the multiple sets of buffer springs, when the check valve vibrates to drive the supporting assembly to vibrate along with the check valve, the multiple sets of buffer springs can effectively buffer the check valve, and the influence of vibration on the check valve is reduced; therefore, looseness at the joint of the check valve is effectively avoided, and safety of oil delivery is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of check valve, concretely relates to a petroleum pipeline check valve. BACKGROUND

[0002] Check valve is the closing piece for circular valve and acts by its own weight and medium pressure to block the backflow of medium, belongs to automatic valve, also called check valve, one-way valve, reflux valve or isolation valve, the valve flap movement mode is divided into lift type and swing type, the lift type check valve is similar in structure with check valve, only lacks the valve rod driving the valve flap, medium flows from the inlet end, and flows from the outlet end.

[0003] The petroleum pipeline check valve discloses a petroleum pipeline check valve, including check valve body, the outer side of check valve body is movably connected with mounting seat, the outer side of mounting seat is fixedly connected with threaded rod, the outer side of threaded rod is movably connected with sleeve, the end close to check valve body of sleeve is movably connected with adjusting seat, the other end of sleeve is fixedly connected with fixed seat, the surface of fixed seat is provided with fixed hole, the inner side of mounting seat is movably connected with locking column. The petroleum pipeline check valve, by pulling the locking column, the locking column is separated from the locking groove, the mounting seat is rotated, so that the angle of the fixed seat can be adjusted, the adjusting seat is rotated, under the drive of the threaded hole, by the limitation of the limiting block and the limiting groove, the threaded rod moves upwards, so that the length of the fixed seat can be adjusted to meet the installation requirement.

[0004] The check valve disclosed in the above patent solves the problem of poor stability of the support when supporting the check valve, but when opening and closing the check valve, the check valve will vibrate violently due to the change of fluid, the support disclosed in the above patent cannot buffer the vibration of the check valve, which can easily cause the interface between the check valve and the pipeline to loosen, and cause the safety hazard of interface leakage in the transportation of petroleum.

[0005] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general context in which the present utility model is made and should not be taken as an acknowledgement or any form of suggestion that this information forms prior art that is publicly known. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a petroleum pipeline check valve, which can solve the problem of loosening of the connection between the check valve and the pipeline caused by vibration of the check valve due to opening and closing of the check valve.

[0007] In order to achieve the above-mentioned purpose, the technical scheme provided by the utility model in one embodiment is as follows:

[0008] A petroleum pipeline check valve, comprising:

[0009] The check valve body comprises a valve body, and a pair of connecting pipes are integrally formed at two ends of the valve body, and the connecting pipes are connected with oil conveying pipes so as to open and close the oil conveying pipes through the check valve.

[0010] A pair of supporting members are arranged, and the supporting members are respectively arranged on the connecting pipes so as to support the connecting pipes through the supporting members and ensure the stability of the check valve during use. The supporting member comprises a clamp assembly, and the clamp assembly is arranged on the side wall of the connecting pipe in a hoop manner so that the clamp assembly is fixed on the side wall of the connecting pipe in a hoop manner. The bottom of the clamp assembly is fixedly connected with a supporting block, and the supporting block is used for supporting the clamp assembly. The bottom of the supporting block is threadedly connected with a supporting screw, so that the supporting screw supports the supporting block and adjusts the height through screwing, so that the supporting member can support check valves with different heights and improve the practicability. The lower end of the supporting screw is provided with a supporting column, and a buffer groove is formed in the supporting column. The lower end of the supporting screw is arranged in the buffer groove in a slidable manner, so that the supporting screw can move up and down in the buffer groove. When the check valve is opened and closed to cause violent vibration, the connecting pipe drives the clamp assembly to vibrate, the clamp assembly drives the supporting block to vibrate, and the supporting block drives the supporting screw to vibrate, so that the supporting screw can move up and down in the buffer groove, so as to buffer the vibration of the check valve through the movement of the supporting screw in the buffer groove. The first buffer spring and the second buffer spring are arranged in the buffer groove, the first buffer spring is sleeved on the side wall of the supporting screw, and the second buffer spring is arranged at the bottom of the supporting screw. When the supporting screw moves up and down in the buffer groove, the first buffer spring and the second buffer spring can be compressed, so that the first buffer spring and the second buffer spring can effectively buffer the up-and-down movement of the supporting screw, thereby effectively buffering the vibration of the check valve and preventing the connecting pipe from loosening at the connection with the oil conveying pipe.

[0011] In one or more embodiments of the present application, an energy absorption layer is arranged between the inner side wall of the clamp assembly and the outer side wall of the connecting pipe, and the energy absorption layer is made of rubber material with excellent buffering performance and wear resistance. When the check valve vibrates, the connecting pipe directly transmits the force to the clamp assembly, so that the energy absorption layer buffers the force of the connecting pipe acting on the clamp assembly, thereby buffering the vibration of the check valve.

[0012] In one or more embodiments of the present application, a pair of connecting ears are integrally formed at both ends of the opening of the clamp assembly, and a fixing screw is arranged on the connecting ears.

[0013] In one or more embodiments of the utility model, the fixed screw rod is screwed with a fixed nut, and the fixed nut is fastened on the fixed screw rod, so that the clamp assembly can be fastened on the side wall of the connecting pipe. The fixed nut is provided with a pair of nuts, so that the fixed nut can be locked when it is fastened on the fixed screw rod, avoiding loosening of the fixed nut on the fixed screw rod due to vibration of the check valve. The fixed screw rod is sleeved with an elastic washer, which further ensures the fastening of the fixed nut on the fixed screw rod.

[0014] In one or more embodiments of the utility model, the bottom of the support block is provided with a threaded hole, and the upper end of the support screw rod is screwed into the threaded hole, so that the support screw rod can be adjusted in extension and retraction by rotation at the bottom of the support block, thereby adjusting the height of the support member.

[0015] In one or more embodiments of the utility model, the bottom of the support screw rod is fixedly connected with a limiting plate, the outer diameter of the limiting plate matches the inner diameter of the buffer groove, and the limiting plate stabilizes the support screw rod when moving up and down in the buffer groove.

[0016] In one or more embodiments of the utility model, the inner side wall of the upper end of the buffer groove is fixedly connected with a limiting ring, the inner diameter of the limiting ring matches the outer diameter of the support screw rod, and the support screw rod is slidably connected to the limiting ring in a penetrating manner, so that the support screw rod slides in and out of the buffer groove through the limiting ring.

[0017] In one or more embodiments of the utility model, the upper end of the first buffer spring is fixedly connected to the bottom of the limiting ring, and the lower end of the first buffer spring is fixedly connected to the limiting plate, so that when the limiting plate is moved upward by the support screw rod, the first buffer spring can be compressed, so that the first buffer spring buffers the support screw rod. The second buffer spring is arranged at the bottom of the limiting plate, so that when the limiting plate is moved downward by the support screw rod, the second buffer spring can be compressed, so that the second buffer spring buffers the support screw rod.

[0018] In one or more embodiments of the utility model, the side wall of the support screw rod is fixedly connected with a rotating block, and the outer side of the rotating block is hexagonal in shape, so that the rotating block facilitates rotation of the support screw rod, thereby facilitating adjustment of the height of the support screw rod.

[0019] In one or more embodiments of the utility model, the bottom of the support column is fixedly connected with a mounting block, a pair of mounting holes are formed in the mounting block, the mounting block supports the support column, and fasteners are arranged in the mounting holes to fix the mounting block to the contact surface.

[0020] Compared with the prior art, the support assembly is arranged to support the check valve, the support assembly is provided with a plurality of buffer springs, when the support assembly is vibrated along with the check valve, the plurality of buffer springs can effectively buffer the check valve, the influence of vibration on the check valve is reduced, thereby effectively avoiding loosening of the check valve interface, and the safety of oil transportation is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0022] Figure 1 It is a front view of a kind of petroleum pipeline check valve in an embodiment of the present application;

[0023] Figure 2 It is a perspective view of a kind of petroleum pipeline check valve in an embodiment of the present application;

[0024] Figure 3 It is a sectional view of a kind of petroleum pipeline check valve in an embodiment of the present application;

[0025] Figure 4 It is a sectional view of the connecting pipe and the clamp connection in the present application;

[0026] Figure 5 It is the schematic diagram of A in the present application Figure 4 ;

[0027] Figure 6 It is the partial sectional view of support assembly in the present application;

[0028] Figure 7 It is the partial explosion drawing of support assembly in the present application.

[0029] Main drawing mark explanation:

[0030] 1-check valve body, 11-valve body, 12-connecting pipe, 2-support assembly, 21-clamp body, 22-energy absorbing layer, 23-connecting lug, 24-fixing screw rod, 25-fixing nut, 26-elastic washer, 27-supporting block, 28-screw hole, 29-supporting screw, 210-supporting column, 211-buffering groove, 212-first buffer spring, 213-second buffer spring, 214-limiting ring, 215-limiting plate, 216-rotating block, 217-mounting block, 218-mounting hole. DETAILED DESCRIPTION

[0031] In order to make the person skilled in the art better understand the technical scheme in the utility model, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.

[0032] As shown in Figures 1-3 An embodiment of the utility model discloses a petroleum pipeline check valve, which comprises a check valve body 1 and a supporting piece 2.

[0033] As shown in Figures 1-3 The check valve body 1 comprises a valve body 11, and a pair of connecting pipes 12 are integrally formed at both ends of the valve body 11, which are connected with the oil pipeline through the connecting pipes 12, so that the opening and closing of the petroleum pipeline can be realized through the check valve.

[0034] As shown in Figures 1-3As shown, the support 2 is provided with a pair, and the pair of support 2 is respectively installed on a pair of connecting pipe 12, thereby supporting the pair of connecting pipe 12 through the pair of support 2, and ensuring the stability of the check valve in use. The support 2 comprises a clamp assembly 21, which is installed on the side wall of the connecting pipe 12 in a hoop manner, so that the clamp assembly 21 is fixed on the side wall of the connecting pipe 12 in a hoop manner. The bottom of the clamp assembly 21 is fixedly connected with a support block 27, which is used to support the clamp assembly 21. The bottom of the support block 27 is threadedly connected with a support screw 29, so that the support screw 29 supports the support block 27 while adjusting the height through screwing, so that the support 2 can support check valves of different heights, improving its practicability. The lower end of the support screw 29 is provided with a support column 210, and a buffer groove 211 is formed in the support column 210. The lower end of the support screw 29 is slidably arranged in the buffer groove 211, so that the support screw 29 can move up and down in the buffer groove 211. When the check valve switch causes violent vibration, the connecting pipe 12 drives the clamp assembly 21 to vibrate, the clamp assembly 21 drives the support block 27 to vibrate, and the support block 27 drives the support screw 29 to vibrate, so that the support screw 29 can move up and down in the buffer groove 211, so as to buffer the vibration of the check valve through the movement of the support screw 29 in the buffer groove 211. The first buffer spring 212 and the second buffer spring 213 are arranged in the buffer groove 211. The first buffer spring 212 is sleeved on the side wall of the support screw 29, and the second buffer spring 213 is arranged at the bottom of the support screw 29. When the support screw 29 moves up and down in the buffer groove 211, the first buffer spring 212 and the second buffer spring 213 can be compressed, so that the first buffer spring 212 and the second buffer spring 213 can effectively buffer the up and down movement of the support screw 29, thereby effectively buffering the vibration of the check valve, and preventing the loosening of the connection between the connecting pipe 12 and the oil conveying pipe when the check valve vibrates.

[0035] As shown in Figures 3-5 The inner side wall of the clamp assembly 21 and the outer side wall of the connecting pipe 12 are provided with an energy absorption layer 22, which is made of rubber material with good buffering performance and wear resistance. When the check valve vibrates, the connecting pipe 12 directly transmits the force to the clamp assembly 21, so that the energy absorption layer 22 buffers the force of the connecting pipe 12 acting on the clamp assembly 21, so as to buffer the vibration of the check valve.

[0036] As shown in Figure 4 As shown in Figure 5 The two ends of the opening of the clamp assembly 21 are integrally formed with a pair of connecting ears 23, and the connecting ears 23 are provided with a fixing screw 24.

[0037] As shown in Figure 4 As shown inFigure 5 As shown, the threaded end of the fixing screw 24 is threadedly connected with a fixing nut 25, and the fixing nut 25 is fastened on the fixing screw 24, so that the clamp assembly 21 can be fastened on the side wall of the connecting pipe 12. The fixing nut 25 is provided with a pair, so that when the fixing nut 25 is fastened on the fixing screw 24, it can be locked to avoid loosening of the fixing nut 25 on the fixing screw 24 due to vibration of the check valve. The fixing screw 24 is sleeved with an elastic washer 26, which further ensures the fastening of the fixing nut 25 on the fixing screw 24.

[0038] As shown in Figures 3-7 The bottom of the support block 27 is provided with a threaded hole 28, and the upper end of the support screw 29 is threadedly connected in the threaded hole 28, so that the support screw 29 can be adjusted in extension and retraction by rotating at the bottom of the support block 27, realizing the adjustment of the height of the support piece 2.

[0039] As shown in Figure 6 and Figure 7 The bottom of the support screw 29 is fixedly connected with a limiting plate 215, and the outer diameter of the limiting plate 215 matches the inner diameter of the buffer groove 211, so that the support screw 29 moves stably up and down in the buffer groove 211.

[0040] As shown in Figure 6 and Figure 7 The inner side wall of the upper end of the buffer groove 211 is fixedly connected with a limiting ring 214, and the inner diameter of the limiting ring 214 matches the outer diameter of the support screw 29, and the support screw 29 is slidably connected to the limiting ring 214 in a penetrating manner, so that the support screw 29 slides in and out of the buffer groove 211 through the limiting ring 214.

[0041] As shown in Figure 6 and Figure 7 The upper end of the first buffer spring 212 is fixedly connected to the bottom of the limiting ring 214, and the lower end of the first buffer spring 212 is fixedly connected to the limiting plate 215, so that when the limiting plate 215 is moved upward by the support screw 29, the first buffer spring 212 can be compressed, so that the first buffer spring 212 buffers the support screw 29. The second buffer spring 213 is arranged at the bottom of the limiting plate 215, so that when the limiting plate 215 is moved downward by the support screw 29, the second buffer spring 213 can be compressed, so that the second buffer spring 213 buffers the support screw 29.

[0042] As shown in Figure 6 and Figure 7 The side wall of the support screw 29 is fixedly connected with a rotating block 216, and the outer side of the rotating block 216 is hexagonal in shape, so that the rotating block 216 makes the rotation of the support screw 29 convenient, so as to adjust the height of the support screw 29.

[0043] As Figure 2 and Figure 7 As shown in the drawings, the bottom of the support column 210 is fixedly connected with a mounting block 217, a pair of mounting holes 218 are formed in the mounting block 217, the support column 210 is supported through the mounting block 217, and the mounting block 217 is fixed to the contact surface through fasteners arranged in the mounting holes 218.

[0044] In use, the clamp assembly 21 is installed on the side wall of the connecting pipe 12 in a hoop manner, and the energy absorption layer 22 is arranged between the clamp assembly 21 and the connecting pipe 12. After installation, the fixed screw 24 is installed on the connecting lug 23, the elastic washer 26 is sleeved on the threaded end of the fixed screw 24, and the fixed nut 25 is fastened on the fixed screw 24, so that the clamp assembly 21 is stably installed on the connecting pipe 12. The height of the support 2 is adjusted by rotating the support screw 29, so that the mounting block 217 contacts the ground, and then the mounting block 217 is fixed to the ground, so that the pair of supports 2 can stably support the check valve. When the check valve switch causes vibration, the check valve transmits the vibration force to the clamp assembly 21, so that the energy absorption layer 22 buffers the vibration of the check valve, and the clamp assembly 21 transmits the vibration force to the support screw 29, so that the support screw 29 moves in the support column 210 on the support column 210. The support screw 29 compresses the first buffer spring 212 or the second buffer spring 213, so that the vibration of the check valve is further buffered by the first buffer spring 212 and the second buffer spring 213, thereby reducing the influence of vibration on the check valve and avoiding loosening of the interface between the check valve and the oil pipeline.

[0045] It is obvious to a person skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0046] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A check valve for oil lines, characterized in that, The utility model relates to a check valve body, including the valve body, the both ends of the valve body are integrally formed with a pair of connecting pipes, a pair of supporting pieces are arranged, and the supporting piece is installed on the connecting pipe respectively, the supporting piece includes a clamp assembly, the clamp assembly is installed on the side wall of the connecting pipe in the form of a hoop, the bottom of the clamp assembly is fixedly connected with a supporting block, the bottom of the supporting block is threadedly connected with a supporting screw rod, the lower end of the supporting screw rod is installed with a supporting column, a buffer groove is formed in the supporting column, the lower end of the supporting screw rod is slidably arranged in the buffer groove, a first buffer spring and a second buffer spring are installed in the buffer groove, the first buffer spring is sleeved on the side wall of the supporting screw rod, and the second buffer spring is arranged at the bottom of the supporting screw rod. The inner side wall of the clamp assembly and the outer side wall of the connecting pipe are provided with an energy absorption layer made of rubber material with excellent buffering performance and wear resistance. The both ends of the opening of the clamp assembly are integrally formed with a pair of connecting ears, and a fixed screw rod is installed on the connecting ear.

2. A check valve for oil lines as defined in claim 1, characterized in that The threaded end of the fixed screw rod is threadedly connected with a fixed nut, the fixed nut is provided with a pair of fixed nuts, and an elastic washer is sleeved on the fixed screw rod.

3. A check valve for oil lines as defined in claim 1, characterized in that The bottom of the supporting block is provided with a threaded hole, and the upper end of the supporting screw rod is threadedly connected in the threaded hole.

4. A check valve for oil lines according to claim 3, characterized in that The bottom of the supporting screw rod is fixedly connected with a limiting plate, and the outer diameter of the limiting plate matches the inner diameter of the buffer groove.

5. A check valve for oil lines as defined in claim 1, characterized in that The inner side wall of the upper end of the buffer groove is fixedly connected with a limiting ring, the inner diameter of the limiting ring matches the outer diameter of the supporting screw rod, and the supporting screw rod is slidably connected to the limiting ring in a penetrating mode.

6. A check valve for oil lines as defined in claim 1, characterized in that The upper end of the first buffer spring is fixedly connected to the bottom of the limiting ring, the lower end of the first buffer spring is fixedly connected to the limiting plate, and the second buffer spring is arranged at the bottom of the limiting plate.

7. A check valve for oil lines according to claim 6, characterized in that The side wall of the supporting screw rod is fixedly connected with a rotating block, and the outer side of the rotating block is hexagonal.

8. A check valve for oil lines according to claim 7, characterized in that The bottom of the supporting column is fixedly connected with a mounting block, and a pair of mounting holes are formed in the mounting block.

9. A check valve for oil lines as defined in claim 1, characterized in that ​ 10. A check valve for oil lines as defined in claim 1, characterized in that ​

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