Hose pull-off valve and advance seal structure

Abstract

The utility model provides a kind of hose pull-off valve and advance sealing structure, comprising: pull-off valve assembly one, the pull-off valve assembly one including valve body one, guide column, stretch column, metal bellows, pull-off sealing plate and pull-off sealing groove, compared with prior art, the utility model has the beneficial effects as follows: by increasing pull-off valve assembly one, pull-off valve assembly two and connecting bolt, pull-off bolt holds pull-off sealing plate and is separated from the inlaying of pull-off sealing groove, external force pulls pull-off valve assembly one and pull-off valve assembly two and makes metal bellows stretch, pull-off sealing plate is driven to move left and makes pull-off bolt break, realize sealing before pull-off valve assembly one and pull-off valve assembly two are not separated, and pull-off valve assembly one and pull-off valve assembly two are butt joint by connecting bolt, to be able to improve pull-off valve use convenience, by increasing pull-off valve assembly one, pull-off valve assembly two and sealing ring, to be able to improve connection sealing property.

Description

Technical Field

[0001] This utility model belongs to the field of breakaway valve technology, and specifically relates to a hose breakaway valve and a pre-sealing structure. Background Technology

[0002] A breakaway valve is an emergency disconnect device that prevents leaks caused by accidental pipeline rupture. It is applicable in areas such as ship-to-shore unloading, tank loading and unloading on highways and railways, and other fixed and mobile fluid storage devices, such as loading arms and fluid transfer arms connecting to transport vehicles. A flexible breakaway valve has a flexible external pipeline structure. In most cases, the valve breaks free of the flow restriction at the moment of rupture, allowing the corresponding sealing structure to achieve a passage seal under the action of springs or other structures. However, the fluid inside is still flowing before the rupture, meaning that although a seal is achieved immediately upon rupture, some fluid may still leak out. Furthermore, breakaway valves mostly rely on breakaway bolts to hold the sealing structure in place, making it difficult to easily replace and reconnect the breakaway bolt after it breaks for subsequent reuse.

[0003] In summary, we hope to propose a new structure to solve the aforementioned technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a hose breakage valve and a pre-sealing structure to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a hose breakaway valve and a pre-sealing structure, comprising: a breakaway valve assembly one, which includes a valve body one, guide columns, tension columns, a metal bellows, a breakaway sealing plate, and a breakaway sealing groove; a breakaway valve assembly two is provided on the right side of the breakaway valve assembly one; a metal bellows for telescopic movement adjustment is fixedly connected to the middle of the valve body one; four sets of guide columns evenly distributed in a circle are fixedly connected to the right outer side of the valve body one; four sets of tension columns evenly distributed in a circle are fixedly connected to the left outer side of the valve body one; a breakaway sealing groove is provided on the inner side of the valve body one at the left end of the metal bellows; a breakaway sealing plate is provided on the inner side of the metal bellows; and the breakaway valve assembly two includes a valve body two, which is connected to the valve body one by connecting bolts.

[0006] In a preferred embodiment, the valve body two has the same structure as the valve body one. A support frame is fixedly connected to the left inner side of the valve body one, and a spring assembly is fixedly connected to the right side of the support frame. The spring assembly includes a spring body and a telescopic rod.

[0007] In a preferred embodiment, the right end of the spring assembly is fixedly connected to the left side of the breakable sealing plate, the breakable sealing plate and the breakable sealing groove are mutually sealed and fitted, and the breakable bolt breaks after exceeding the breakable load force, so that the breakable sealing plate is driven to seal and fit with the breakable sealing groove under the spring assembly's rebound.

[0008] In a preferred embodiment, a connecting column is fixedly connected to the right side of the pull-off sealing plate, and a conductive connecting seat is fixedly connected to the inner side of the valve body located on the right side of the metal bellows.

[0009] In a preferred embodiment, both the conductive connector and the connecting post have a pull-out threaded hole on their right side. A pull-out bolt is screwed into the inner thread of the pull-out threaded hole. A tension groove is provided on the left side of the guide post. The tension post is located inside the tension groove and moves in a telescopic manner. During the telescopic movement of the metal bellows, the tension post moves linearly within the tension groove to prevent the metal bellows from bending or deviating.

[0010] In a preferred embodiment, connecting flanges are fixedly connected to adjacent outer surfaces of valve body one and valve body two. A connecting threaded hole is formed perpendicularly through the left side of the connecting flange. The connecting bolts are threadedly engaged with the connecting threaded hole to complete the connection between breakaway valve assembly one and breakaway valve assembly two.

[0011] In a preferred embodiment, a conical groove is provided on the right end of the inner side of the valve body, and a conical seat is fixedly connected to the left side of the valve body. Sealing grooves are provided on both the inner side of the conical groove and the outer side of the conical seat.

[0012] In a preferred embodiment, the conical seat and the conical groove interlock and the sealing ring is placed inside the sealing groove for sealing. A spring sealing ring is fixedly installed at the left end of the conical groove. A fitting sealing groove is opened on the left side of the conical seat. The spring sealing ring and the fitting sealing groove interlock and seal with each other, so that the conical seat is embedded in the conical groove and the sealing ring is installed inside the sealing groove to form a primary seal. After docking, the spring sealing ring is embedded in the fitting sealing groove to form a secondary seal, thereby improving the connection sealing performance.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are:

[0014] 1. By adding pull-off valve assembly one, pull-off valve assembly two, and connecting bolts, the pull-off bolts pull the pull-off sealing plate away from the pull-off sealing groove. External force pulls pull-off valve assembly one and pull-off valve assembly two to extend the metal bellows, causing the pull-off sealing plate to move to the left and break the pull-off bolts. A seal is achieved before pull-off valve assembly one and pull-off valve assembly two are separated. Furthermore, pull-off valve assembly one and pull-off valve assembly two are connected by connecting bolts, thereby improving the ease of use of the pull-off valve.

[0015] 2. By adding pull-off valve assembly one, pull-off valve assembly two, and sealing ring, the conical seat is embedded in the conical groove, and a sealing ring is installed on the inner side of the sealing groove to form a primary seal. After docking, the spring sealing ring is embedded in the sealing groove to form a secondary seal, thereby improving the connection sealing performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a hose breakaway valve and a pre-sealing structure according to the present invention.

[0018] Figure 2 This is an exploded structural diagram of a hose break-off valve and a pre-sealing structure according to the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the pull-off valve component in the hose pull-off valve and pre-sealing structure of this utility model.

[0020] Figure 4 This is a partial cross-sectional schematic diagram of the pull-off valve assembly in the hose pull-off valve and pre-sealing structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the pull-off valve assembly 2 in the hose pull-off valve and pre-sealing structure of this utility model.

[0022] In the diagram, 100-breakaway valve assembly one, 101-valve body one, 102-connecting flange, 103-connecting threaded hole, 104-conical groove, 105-sealing groove, 106-spring sealing ring, 107-guide post, 108-tension groove, 109-tension post, 110-metal bellows, 111-support frame, 112-spring assembly, 113-breakaway sealing plate, 114-breakaway sealing groove, 115-connecting post, 116-breakaway bolt, 117-conducting connection seat;

[0023] 200-Breakaway valve assembly II, 201-Valve body II, 202-Conical seat, 203-Fit sealing groove;

[0024] 300 - Sealing ring;

[0025] 400 - Connecting bolt. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1 to 5 As the first embodiment of this utility model:

[0028] A hose breakaway valve and a pre-sealing structure are provided, comprising: a breakaway valve assembly 100, wherein the breakaway valve assembly 100 includes a valve body 101, a guide post 107, a tension post 109, a metal bellows 110, a breakaway sealing plate 113, and a breakaway sealing groove 114.

[0029] A second breakaway valve assembly 200 is provided on the right side of the first breakaway valve assembly 100. A metal bellows 110 for telescopic movement adjustment is fixedly connected at the middle position of the first valve body 101. Four sets of guide columns 107 distributed in a circular pattern are fixedly connected to the right side of the first valve body 101. Four sets of tension columns 109 distributed in a circular pattern are fixedly connected to the left side of the first valve body 101.

[0030] A break-off sealing groove 114 is provided on the inner side of valve body 101 at the left end of metal bellows 110. A break-off sealing plate 113 is provided on the inner side of metal bellows 110. The break-off valve assembly 200 includes valve body 201. Valve body 201 and valve body 101 are connected by connecting bolts 400.

[0031] Valve body 201 has the same structure as valve body 101. A support frame 111 is fixedly connected to the left inner side of valve body 101, and a spring assembly 112 is fixedly connected to the right side of the support frame 111. The spring assembly 112 includes a spring body and a telescopic rod.

[0032] The right end of the spring assembly 112 is fixedly connected to the left side of the break seal plate 113. The break seal plate 113 and the break seal groove 114 are mutually sealed and fitted. The break bolt 116 breaks after exceeding the break load force, so that the break seal plate 113 is driven to seal and fit with the break seal groove 114 under the spring assembly 112 rebound.

[0033] A connecting column 115 is fixedly connected to the right side of the pull-off sealing plate 113, and a conductive connecting seat 117 is fixedly connected to the inner side of the valve body 101 on the right side of the metal bellows 110.

[0034] Both the connecting seat 117 and the connecting post 115 have a pull-out threaded hole on their right side. A pull-out bolt 116 is screwed into the threaded hole. The guide post 107 has a tension groove 108 on its left side. The tension post 109 is located inside the tension groove 108 and moves telescopically. During the telescopic movement of the metal bellows 110, the tension post 109 moves linearly within the tension groove 108 to prevent the metal bellows 110 from bending or deviating.

[0035] A connecting flange 102 is fixedly connected to the adjacent outer side of valve body 101 and valve body 201. A connecting threaded hole 103 is formed vertically through the left side of the connecting flange 102. The connecting bolt 400 is threaded into the connecting threaded hole 103 to complete the connection between the pull-off valve assembly 100 and the pull-off valve assembly 200.

[0036] Specifically, the pull-off bolt 116 is screwed into the pull-off threaded hole, causing the pull-off sealing plate 113 to disengage from the pull-off sealing groove 114. The pull-off valve assembly 100 and the pull-off valve assembly 200 are connected by a connecting bolt 400 passing through the connecting threaded hole 103, forming a sealed connection between them. Next, under external force, the metal bellows 110 is stretched, which in turn causes the pull-off sealing plate 113 to move towards the pull-off load, pulling... The break bolt 116 breaks after exceeding the tensile load, causing the break seal plate 113 to be driven by the spring assembly 112 to seal and fit with the break seal groove 114 (the breaking load of the break bolt 116 is less than that of the connecting bolt 400). This achieves the sealing effect of interrupting fluid conduction before the break valve assembly 100 and the break valve assembly 200 are separated. In subsequent repeated use, only the break bolt 116 needs to be installed from the end, and the connection can be completed from the outside using the connecting bolt 400, thereby improving the ease of use of the break valve.

[0037] Please see Figures 1-5 As a second embodiment of this utility model:

[0038] A conical groove 104 is provided on the right end of the inner side of valve body 101, and a conical seat 202 is fixedly connected to the left side of valve body 201. Sealing grooves 105 are provided on the inner side of the conical groove 104 and the outer side of the conical seat 202.

[0039] The conical seat 202 and the conical groove 104 are interlocked, and the sealing ring 300 is placed inside the sealing groove 105 for sealing and fitting. A spring sealing ring 106 is fixedly installed at the left end of the conical groove 104. A fitting sealing groove 203 is opened on the left side of the conical seat 202. The spring sealing ring 106 and the fitting sealing groove 203 are interlocked, so that the conical seat 202 is embedded in the conical groove 104 and the sealing ring 300 is installed inside the sealing groove 105 to form a primary seal. After docking, the spring sealing ring 106 is embedded in the fitting sealing groove 203 to form a secondary seal.

[0040] Based on the first embodiment described above, further, in the docking of the first breakaway valve assembly 100 and the second breakaway valve assembly 200, the conical seat 202 is embedded in the conical groove 104 and a sealing ring 300 is installed on the inner side of the sealing groove 105 to form a primary seal, and after docking, the spring sealing ring 106 is embedded in the fitting sealing groove 203 to form a secondary seal, thereby improving the connection sealing performance.

[0041] 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 hose breakaway valve and a pre-sealing structure, comprising: A breakaway valve assembly (100) is characterized in that: the breakaway valve assembly (100) includes a valve body (101), a guide post (107), a tension post (109), a metal bellows (110), a breakaway sealing plate (113), and a breakaway sealing groove (114); The right side of the first pull-off valve assembly (100) is provided with the second pull-off valve assembly (200). A metal bellows (110) for telescopic movement adjustment is fixedly connected to the middle of the first valve body (101). Four sets of guide columns (107) distributed in a circular pattern are fixedly connected to the right side of the first valve body (101). Four sets of tension columns (109) distributed in a circular pattern are fixedly connected to the left side of the first valve body (101). The inner side of the valve body (101) is provided with a break-off sealing groove (114) at the left end of the metal bellows (110). The inner side of the metal bellows (110) is provided with a break-off sealing plate (113). The break-off valve assembly (200) includes a valve body (201). The valve body (201) and the valve body (101) are connected by connecting bolts (400).

2. The hose break-off valve and pre-sealing structure as described in claim 1, characterized in that: The valve body two (201) has the same structure as the valve body one (101). A support frame (111) is fixedly connected to the left inner side of the valve body one (101), and a spring assembly (112) is fixedly connected to the right side of the support frame (111). The spring assembly (112) includes a spring body and a telescopic rod.

3. The hose break-off valve and pre-sealing structure as described in claim 2, characterized in that: The right end of the spring assembly (112) is fixedly connected to the left side of the break seal plate (113), and the break seal plate (113) and the break seal groove (114) are mutually sealed and fitted together.

4. The hose break-off valve and pre-sealing structure as described in claim 1, characterized in that: A connecting column (115) is fixedly connected to the right side of the pull-off sealing plate (113), and a conductive connecting seat (117) is fixedly connected to the inner side of the valve body (101) on the right side of the metal bellows (110).

5. The hose break-off valve and pre-sealing structure as described in claim 4, characterized in that: The right side of the conductive connector (117) and the connecting post (115) are provided with a pull-out threaded hole, and a pull-out bolt (116) is screwed into the inner side of the pull-out threaded hole. The left side of the guide post (107) is provided with a tension groove (108), and the tension post (109) is located inside the tension groove (108) and moves in a telescopic manner.

6. The hose break-off valve and pre-sealing structure as described in claim 1, characterized in that: A connecting flange (102) is fixedly connected to the adjacent outer side of both valve body one (101) and valve body two (201). A connecting threaded hole (103) is formed vertically through the left side of the connecting flange (102). The connecting bolt (400) is threadedly engaged with the connecting threaded hole (103) to complete the connection between the pull-off valve assembly one (100) and the pull-off valve assembly two (200).

7. The hose break-off valve and pre-sealing structure as described in claim 1, characterized in that: A conical groove (104) is provided on the right end of the inner side of the valve body one (101), and a conical seat (202) is fixedly connected to the left side of the valve body two (201). A sealing groove (105) is provided on the inner side of the conical groove (104) and the outer side of the conical seat (202).

8. The hose break-off valve and pre-sealing structure as described in claim 7, characterized in that: The conical seat (202) and the conical groove (104) are interlocked to make the sealing ring (300) be placed inside the sealing groove (105) for sealing and fitting. A spring sealing ring (106) is fixedly installed at the left end of the conical groove (104). A fitting sealing groove (203) is opened on the left side of the conical seat (202). The spring sealing ring (106) and the fitting sealing groove (203) are interlocked for sealing and fitting.

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