A pressure relief valve for a turbocharged engine

Abstract

The application discloses a pressure relief valve for a supercharged engine, and relates to the technical field of pressure relief valves.The pressure relief valve comprises a pressure relief pipeline, a valve body is arranged on the pressure relief pipeline, a static valve core is arranged in the valve body, a dynamic valve core is arranged in the valve body, and an auxiliary pressure relief device is arranged in the valve body.The auxiliary pressure relief device comprises an auxiliary pressure relief mechanism, which is arranged in the valve body; a filtering mechanism, which is arranged at the top end of the valve body; and a mounting mechanism, which is arranged outside the valve body.The auxiliary pressure relief mechanism, the filtering mechanism and the mounting mechanism are arranged in cooperation, the auxiliary pressure relief mechanism can assist in pressure relief, high-pressure gas can be discharged quickly, the exhaust speed is accelerated, the pressure relief effect of the pressure relief valve on the engine is improved, the protection capability of the pressure relief valve on the engine is enhanced, and the filtering mechanism can filter gas during pressure relief, so that the discharged gas cannot pollute the environment, and the pressure relief valve is convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pressure relief valves, in particular to a pressure relief valve for a turbocharged engine. BACKGROUND

[0002] The pressure relief valve of the engine can be automatically opened and closed according to the working pressure of the equipment. When the internal pressure of the equipment exceeds the design requirement, the pressure relief valve is automatically opened to discharge the excess gas in the engine, so that the pressure in the equipment is maintained within a safe range, and the equipment can be safely and stably operated.

[0003] The existing engine pressure relief valve generally forms a sealing structure between the sealing body of the valve core and the connected exhaust pipe. When the pressure exceeds the pressure relief pressure value, the valve core can be pushed to move, so that a gap is formed between the sealing body and the exhaust pipe, so that the gas can be discharged to achieve pressure relief. Since the air passage area between the sealing body of the valve core and the connected exhaust pipe is fixed, it is difficult to quickly reduce the pressure of the equipment when discharging high-pressure gas, which is relatively inconvenient. SUMMARY

[0004] The purpose of the present application is to provide a pressure relief valve for a turbocharged engine to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a pressure relief valve for a turbocharged engine, comprising a pressure relief pipeline, a valve body is arranged on the pressure relief pipeline, a static valve core is fixedly installed in the valve body, a dynamic valve core is slidably arranged in the valve body, a sealing body is connected to the dynamic valve core, an auxiliary pressure relief device is arranged in the valve body, and the auxiliary pressure relief device comprises:

[0006] An auxiliary pressure relief mechanism is arranged in the valve body, and the auxiliary pressure relief mechanism comprises:

[0007] A guide rod is rotatably arranged in the valve body through a bearing, the guide rod is used for guiding the dynamic valve core, a through groove for gas flow is formed in the guide rod, the guide rod is used for auxiliary pressure relief of gas discharge, the cross section of the through groove is hexagonal, air holes are formed on both sides of the static valve core, and an external thread is formed on the outer wall of the guide rod;

[0008] An extrusion sleeve is threadedly arranged on the outside of the guide rod, and the guide rod adjusts the pressure relief pressure value by driving the extrusion sleeve to displace;

[0009] A pressure relief assembly is arranged between the sealing body and the valve body, and is used for auxiliary discharge of high-pressure gas;

[0010] A filtering mechanism is arranged at the top end of the valve body and used for processing the gas discharged by the auxiliary pressure relief mechanism.

[0011] A mounting mechanism is arranged outside the valve body and used for fixing the valve body and the filtering mechanism.

[0012] Preferably, the auxiliary pressure relief mechanism comprises:

[0013] A rotating rod is arranged inside the filtering mechanism and is in sliding penetration connection with the inner cavity of the through slot.

[0014] A first compression spring is fixedly connected at one end with the extrusion sleeve and at the other end with the inner wall of the moving valve core.

[0015] A positioning rod is fixedly connected at the top end of the rotating rod.

[0016] A limiting block is arranged at both sides of the inner wall of the static valve core and is in sliding penetration connection with the inner cavity of the limiting slot, and the limiting block is fixedly connected with the extrusion sleeve.

[0017] Preferably, the pressure relief assembly comprises:

[0018] A fixing sleeve is equidistantly fixedly connected at the bottom end of the inner wall of the sealing body, the bottom end of the sealing body is equidistantly provided with an air inlet slot communicated with the plurality of fixing sleeves, and the opposite sides of the fixing sleeve are both provided with an air inlet hole communicated with the inside of the moving valve core.

[0019] An annular sleeve is fixedly connected with the inner wall of the air inlet slot.

[0020] A sealing plug is in sliding penetration connection with the inner cavity of the annular sleeve.

[0021] A sleeve is fixedly connected with the inner wall of the fixing sleeve.

[0022] An extrusion plate is arranged inside the sleeve.

[0023] A connecting rod is fixedly and penetratingly connected at one end with the extrusion plate through the sleeve and is fixedly connected at the other end with the sealing plug.

[0024] A second compression spring is sleeved outside the connecting rod, one end of the second compression spring is fixedly connected with the extrusion plate, and the other end of the second compression spring is fixedly connected with the inner wall of the sleeve.

[0025] Preferably, the pressure relief assembly further comprises:

[0026] A fixing rod is fixedly connected with the inner wall of the fixing sleeve.

[0027] The telescopic rod is sleeved on the outside of the fixed rod, a slope is arranged on the side of the telescopic rod away from the air inlet hole, and a sliding hole is arranged at the top end of the telescopic rod, and the connecting rod is matched with the inner cavity of the sliding hole;

[0028] The first magnet is fixedly connected with the fixed rod;

[0029] The second magnet is fixedly connected to one side of the inner wall of the telescopic rod, and the first magnet and the second magnet are matched with each other;

[0030] The extrusion rod is fixedly connected to the inside of the valve body, the other end of the extrusion rod is slidably and penetratingly connected with the fixed sleeve, and the extrusion rod is matched with the telescopic rod.

[0031] Preferably, the outer part of the extrusion rod is fixedly and penetratingly connected with a first sealing ring, which is used to block the gas flow between the extrusion rod and the fixed sleeve.

[0032] Preferably, the filtering mechanism comprises:

[0033] The fixed plate is fixedly connected to the top end of the valve body, and the rotating rod is rotatably arranged in the inside of the fixed plate;

[0034] The filtering plate is located in the inside of the fixed plate, equidistant positioning holes are arranged at the bottom end of the filtering plate, and the positioning rod is slidably and penetratingly connected with the inner cavity of the positioning hole;

[0035] The ejection plate is located in the inside of the ejection groove of the fixed plate;

[0036] The ejection rod is equidistantly arranged at the bottom end of the filtering plate, one end of the ejection rod is fixedly connected with the ejection plate, and the other end of the ejection rod is slidably and penetratingly connected with the inner cavity of the ejection hole;

[0037] The third compression spring is located in the inside of the ejection groove, one end of the third compression spring is fixedly connected with the ejection plate, and the other end of the third compression spring is fixedly connected with the inner wall of the ejection groove.

[0038] Preferably, the mounting mechanism comprises:

[0039] The rotating ring is sleeved on the outside of the valve body;

[0040] The arc-shaped rod is fixedly connected with the inner wall of the arc-shaped groove at the end portion of the arc-shaped rod;

[0041] The sliding block is equidistantly fixedly connected with the outer wall of the valve body, and the sliding block is slidably and penetratingly connected with the arc-shaped rod.

[0042] A fourth compression spring is sleeved outside the arc-shaped rod, one end of the fourth compression spring is fixedly connected with the sliding block, and the other end of the fourth compression spring is fixedly connected with the inner wall of the arc-shaped groove.

[0043] A first clamping assembly is arranged between the valve body and the rotating ring, and is used for fixing the valve body at multiple points.

[0044] A second clamping assembly is arranged between the rotating ring and the fixed plate, and is used for fixing the filter plate at multiple points.

[0045] Preferably, the mounting mechanism comprises:

[0046] A rotating ring is sleeved outside the valve body;

[0047] An arc-shaped rod is fixedly connected with the inner wall of the arc-shaped groove at the end of the arc-shaped rod;

[0048] A sliding block is fixedly connected with the outer wall of the valve body at equal intervals, and the sliding block is in sliding insertion connection with the arc-shaped rod;

[0049] A fourth compression spring is sleeved outside the arc-shaped rod, one end of the fourth compression spring is fixedly connected with the sliding block, and the other end of the fourth compression spring is fixedly connected with the inner wall of the arc-shaped groove.

[0050] A first clamping assembly is arranged between the valve body and the rotating ring, and is used for fixing the valve body at multiple points.

[0051] A second clamping assembly is arranged between the rotating ring and the fixed plate, and is used for fixing the filter plate at multiple points.

[0052] Preferably, the second clamping assembly comprises:

[0053] A rotating plate is in sliding insertion connection with the inner cavity of the T-shaped groove which is arranged at equal intervals on the outer wall of the rotating ring;

[0054] An L-shaped rod is fixedly connected with the top end of the rotating plate at one end, the outer wall of the fixed plate is arranged with insertion grooves at equal intervals, the outer wall of the filter plate is arranged with C-shaped grooves at equal intervals, and the other end of the L-shaped rod is in sliding insertion connection with the inner cavity of the C-shaped groove through the insertion grooves.

[0055] Preferably, the bottom end of the valve body is fixedly connected with a second sealing ring in contact with the inner wall of the pressure relief pipeline, and the bottom end of the sealing body is fixedly connected with a third sealing ring for blocking the flow of gas.

[0056] Technical effects and advantages of the present application:

[0057] (1) The auxiliary pressure relief mechanism, filtering mechanism and mounting mechanism are matched and arranged, the auxiliary pressure relief mechanism can further open the pressure relief channel in the valve body after the sealing body is opened for pressure relief when discharging high-pressure gas, thereby assisting pressure relief, so that the high-pressure gas can be quickly discharged, the exhaust speed is accelerated, the pressure relief effect of the pressure relief valve on the engine is effectively improved, and the protection capability of the engine is enhanced, the filtering mechanism can filter the gas during auxiliary pressure relief, so as to ensure that the discharged gas does not pollute the environment, and the mounting mechanism can install the valve body and the filter plate in the filtering mechanism, thereby facilitating use;

[0058] (2) The guide rod, rotating rod, extrusion sleeve, first compression spring, pressure relief assembly, positioning rod and limiting block are matched and arranged, the guide rod can guide the moving valve core and drive the guide rod to rotate through the rotating rod, so that the extrusion sleeve adjusts the compression degree of the first compression spring, thereby adjusting the pressure relief pressure value of the entire valve body, so that the use range of the entire valve body is wider, the pressure relief assembly can maintain the sealing effect of the sealing body when there is no high-pressure gas flow, and can open the sealing body when there is high-pressure gas flow, so that part of the high-pressure gas can flow out from the guide rod, thereby assisting the pressure relief pipeline to discharge the high-pressure gas, accelerating the exhaust speed and effectively improving the pressure relief effect of the pressure relief valve on the engine;

[0059] (3) The fixed sleeve, annular sleeve, sealing plug, sleeve, extrusion plate, connecting rod, second compression spring, fixed rod, telescopic rod, first magnet, second magnet and extrusion rod are matched and arranged, the elastic force of the second compression spring on the extrusion plate can make the sealing plug on the connecting rod slide and penetrate the annular sleeve, thereby sealing the air inlet groove, and when there is no gas flow, the first magnet and the second magnet are attracted to each other, the telescopic rod can limit the connecting rod, so that the sealing plug cannot guarantee the sealing effect of the sealing body when there is no high-pressure gas discharge, when the high-pressure gas is discharged, the sealing body moves upward with the moving valve core, the extrusion rod extrudes the telescopic rod provided with a slope, so that the telescopic rod is displaced, and the sliding hole provided thereon is extruded to the top of the connecting rod, at this time, the sealing plug can be opened under the push of the high-pressure gas, the high-pressure gas flows into the guide rod through the fixed sleeve, and is discharged through the filtering mechanism, thereby achieving auxiliary discharge of the high-pressure gas and accelerating the exhaust speed;

[0060] (4) The utility model discloses a filter mechanism and installation mechanism cooperate with the setting mode, utilize the first clamping assembly to install and fix whole valve body with pressure relief pipeline, utilize the second clamping assembly to make when installing filter board, can make the L -shaped rod of second clamping assembly is inserted to the C -shaped groove of filter board, and utilize the elastic force of third compression spring and fourth compression spring, make filter board after pressing into the inside of fixed plate, can be clamped into the inside depth of C -shaped groove, realize the installation fixed of filter board, and filter board after being installed fixed, can realize the positioning of positioning rod through the location of ejector rod, prevent rotating rod from rotating accidentally, keep the stability of whole device, when disassembling, just press filter board and clockwise rotating rotating ring make L -shaped rod can slide from the depth of C -shaped groove to the opening, can pop out under the elastic force of ejector rod, realize the disassembly of filter board, anticlockwise rotating rotating ring, can utilize sliding groove and extrusion groove to extrude sliding plate and pull rod, realize the disassembly of whole valve body, convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0061] Figure 1 It is whole positive internal structure schematic diagram of the utility model.

[0062] Figure 2 It is valve body structure schematic diagram of the utility model.

[0063] Figure 3 It is filter mechanism place positive internal structure schematic diagram of the utility model.

[0064] Figure 4 It is pressure relief subassembly place positive internal structure schematic diagram of the utility model.

[0065] Figure 5 It is the utility model Figure 4 A place enlarged structure schematic diagram.

[0066] Figure 6 It is the utility model Figure 1 B place enlarged structure schematic diagram.

[0067] Figure 7 It is rotating ring place overhead internal structure schematic diagram of the utility model.

[0068] Figure 8 It is filter board C -shaped groove place structure schematic diagram of the utility model.

[0069] Figure 9 It is guide rod place overhead internal structure schematic diagram of the utility model.

[0070] In the figure: 1, pressure relief pipeline; 2, valve body; 3, static valve core; 4, dynamic valve core; 5, sealing body; 6, auxiliary pressure relief mechanism; 61, guide rod; 62, rotating rod; 63, extrusion sleeve; 64, first compression spring; 65, pressure relief assembly; 651, fixed sleeve; 652, annular sleeve; 653, sealing plug; 654, sleeve; 655, extrusion plate; 656, connecting rod; 657, second compression spring; 658, fixed rod; 659, telescopic rod; 6510, first magnet; 6511, second magnet; 6512, extrusion rod; 66, positioning rod; 67, limiting block; 7, filtering mechanism; 71, fixed plate; 72, filter plate; 73, ejection plate; 74, ejection rod; 75, third compression spring; 8, mounting mechanism; 81, rotating ring; 82, arc-shaped rod; 83, sliding block; 84, fourth compression spring; 85, first clamping assembly; 851, clamping rod; 852, pull rod; 853, sliding plate; 854, fifth compression spring; 86, second clamping assembly; 861, rotating plate; 862, L-shaped rod; 9, first sealing ring; 10, second sealing ring; 11, third sealing ring. DETAILED DESCRIPTION

[0071] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0072] The present application provides a kind of valve, including valve body, sealing body, static valve core, dynamic valve core and auxiliary pressure relief mechanism, sealing body is arranged in valve body, static valve core is arranged in sealing body, dynamic valve core is arranged in sealing body, auxiliary pressure relief mechanism is arranged in sealing body. Figures 1-9The utility model provides an exhaust valve for turbocharged engine, including pressure relief pipeline 1, be provided with valve body 2 on pressure relief pipeline 1, the inside fixed mounting of valve body 2 has static valve core 3, the inside sliding of valve body 2 is provided with dynamic valve core 4, and dynamic valve core 4 is jointed with sealing body 5, and the inside of valve body 2 is provided with auxiliary pressure relief device, and auxiliary pressure relief device includes: auxiliary pressure relief mechanism 6, filter mechanism 7 and mounting mechanism 8, auxiliary pressure relief mechanism 6 sets up in the inside of valve body 2, is used for adjusting pressure relief pressure value and gas discharge, filter mechanism 7 sets up at the top of valve body 2, is used for handling the gas of auxiliary pressure relief mechanism 6 discharge, and mounting mechanism 8 sets up at the outside of valve body 2, is used for the fixed of valve body 2 and filter mechanism 7, through auxiliary pressure relief mechanism 6 can be opened in the discharge of high pressure gas, after the pressure relief of sealing body 5, can further open the pressure relief channel in the inside of valve body 2, thereby auxiliary pressure relief, so that high pressure gas can be discharged quickly, and the exhaust speed is accelerated, effectively improves the pressure relief effect of exhaust valve to engine, and enhances the protection ability to engine, filter mechanism 7 can filter gas when auxiliary pressure relief, to ensure that the exhaust gas does not pollute the environment, and mounting mechanism 8 can install filter plate 72 in filter mechanism 7 while installing valve body 2, convenient to use.

[0073] Specifically, the auxiliary pressure relief mechanism 6 comprises a guide rod 61, a rotating rod 62, a pressing sleeve 63, a first compression spring 64, a pressure relief assembly 65, a positioning rod 66 and a limiting block 67. The guide rod 61 is rotatably arranged in the inner part of the static valve body 2 through a bearing. A through slot for gas circulation is arranged in the inner part of the guide rod 61. The cross section of the through slot is hexagonal. Air holes are arranged on both sides of the static valve core 3. The rotating rod 62 is arranged in the inner part of the filtering mechanism 7. The rotating rod 62 is slidably connected with the inner cavity of the through slot. The hexagonal inner cavity facilitates the rotation of the rotating rod 62 to drive the guide rod 61 to rotate. An external thread is arranged on the outer wall of the guide rod 61. The pressing sleeve 63 is threadedly arranged on the outer part of the guide rod 61. When the guide rod 61 rotates, the pressing sleeve 63 can slide in the inner part of the static valve core 3, so as to adjust the compression degree of the first compression spring 64, and thus the pressure relief pressure value of the whole valve body 2, so that the use range of the whole valve body 2 is wider. One end of the first compression spring 64 is fixedly connected with the pressing sleeve 63, and the other end of the first compression spring 64 is fixedly connected with the inner wall of the dynamic valve core 4. The pressure relief assembly 65 is arranged between the sealing body 5 and the valve body 2. The pressure relief assembly 65 can keep the sealing effect of the sealing body 5 when there is no high-pressure gas flow, and can open the sealing body 5 when there is high-pressure gas flow, so that part of the high-pressure gas can flow out of the guide rod 61, the auxiliary pressure relief pipeline 1 discharges the high-pressure gas, accelerates the exhaust speed, and effectively improves the pressure relief effect of the pressure relief valve on the engine.

[0074] Further, the pressure relief assembly 65 comprises: a fixed sleeve 651, an annular sleeve 652, a sealing plug 653, a sleeve 654, an extrusion plate 655, a connecting rod 656, a second compression spring 657, a fixed rod 658, a telescopic rod 659, a first magnet 6510, a second magnet 6511 and an extrusion rod 6512. The fixed sleeve 651 is fixedly connected to the bottom end of the inner wall of the sealing body 5. The bottom end of the sealing body 5 is equidistantly provided with air inlet grooves communicated with the fixed sleeves 651. The opposite side of the fixed sleeve 651 is provided with air inlet holes communicated with the inside of the movable valve core 4. The annular sleeve 652 is fixedly connected to the inner wall of the air inlet groove. The sealing plug 653 is slidably inserted into the inner cavity of the annular sleeve 652. The sleeve 654 is fixedly connected to the inner wall of the fixed sleeve 651. The extrusion plate 655 is located inside the sleeve 654. One end of the connecting rod 656 passes through the sleeve 654 and is fixedly connected to the extrusion plate 655. The other end of the connecting rod 656 is fixedly connected to the sealing plug 653. The second compression spring 657 is sleeved on the outside of the connecting rod 656. One end of the second compression spring 657 is fixedly connected to the extrusion plate 655. The other end of the second compression spring 657 is fixedly connected to the inner wall of the sleeve 654. The fixed rod 658 is fixedly connected to the inner wall of the fixed sleeve 651. The telescopic rod 659 is slidably sleeved on the outside of the fixed rod 658. The side of the telescopic rod 659 away from the air inlet hole is provided with an inclined surface. The top end of the telescopic rod 659 is provided with a sliding hole. The connecting rod 656 and the inner cavity of the sliding hole are matched with each other. The first magnet 6510 is fixedly inserted into the fixed rod 658. The second magnet 6511 is fixedly connected to one side of the inner wall of the telescopic rod 659. The fixed rod 658 and the second magnet 6511 are slidably inserted into each other. The first magnet 6510 and the second magnet 6511 are matched with each other. One end of the extrusion rod 6512 is fixedly connected to the inside of the valve body 2. The other end of the extrusion rod 6512 is slidably inserted into the fixed sleeve 651. The extrusion rod 6512 is matched with the telescopic rod 659. By using the elastic force of the second compression spring 657 on the extrusion plate 655, the sealing plug 653 on the connecting rod 656 can slideably insert into the annular sleeve 652, so as to seal the air inlet groove. When there is no gas flow, the first magnet 6510 and the second magnet 6511 are attracted to each other. The telescopic rod 659 can limit the connecting rod 656, so as to prevent the sealing plug 653 from ensuring the sealing effect of the sealing body 5 on the pressure relief pipeline 1 when there is no high-pressure gas discharge. When there is high-pressure gas discharge, the sealing body 5 moves upward with the movable valve core 4. At this time, the extrusion rod 6512 extrudes the telescopic rod 659 provided with the inclined surface, so that the telescopic rod 659 is displaced, and the sliding hole provided thereon is extruded to be right above the connecting rod 656. At this time, the sealing plug 653 can be opened under the pushing of the high-pressure gas. The high-pressure gas flows into the inside of the guide rod 61 through the fixed sleeve 651, and is discharged through the filtering mechanism 7, so as to realize auxiliary discharge of the high-pressure gas and speed up the exhaust speed.

[0075] Further, the outer part of the extrusion rod 6512 is fixedly connected with a first sealing ring 9, which is used to block the gas flow between the extrusion rod 6512 and the fixing sleeve 651, and the first sealing ring 9 can seal the gap between the fixing sleeve 651 and the extrusion rod 6512, so that the gas can be guided to the inside of the guide rod 61.

[0076] Specifically, the filtering mechanism 7 comprises a fixed plate 71, a filtering plate 72, an ejection plate 73, an ejection rod 74 and a third compression spring 75. The fixed plate 71 is fixedly connected to the top end of the valve body 2, and the rotating rod 62 is rotatably arranged in the inside of the fixed plate 71. The filtering plate 72 is located in the inside of the fixed plate 71, and equidistant positioning holes are formed in the bottom end of the filtering plate 72. The positioning rod 66 is slidably and penetratingly connected with the inner cavity of the positioning hole. The filtering plate 72 can filter the high-pressure gas led out by the guide rod 61, so as to prevent the gas from polluting the environment without being treated. Equidistant ejection grooves are formed in the inner wall of the fixed plate 71, and the ejection plate 73 is located in the inside of the ejection groove. Equidistant ejection holes are formed in the bottom end of the filtering plate 72. One end of the ejection rod 74 is fixedly connected with the ejection plate 73, and the other end of the ejection rod 74 is slidably and penetratingly connected with the inner cavity of the ejection hole. The third compression spring 75 is located in the inside of the ejection groove. One end of the third compression spring 75 is fixedly connected with the ejection plate 73, and the other end of the third compression spring 75 is fixedly connected with the inner wall of the ejection groove. The third compression spring 75 is always in a compressed state, so that the ejection plate 73 can provide a stable upward elastic force to the ejection rod 74. When the L-shaped rod 862 no longer clamps the filtering plate 72, the filtering plate 72 can be ejected by the ejection rod 74 and separated from the inside of the fixed plate 71, so as to facilitate the removal of the filtering plate 72 from the inside of the fixed plate 71.

[0077] Specifically, the mounting mechanism 8 comprises a rotating ring 81, an arc-shaped rod 82, a sliding block 83, a fourth compression spring 84, a first clamping assembly 85 and a second clamping assembly 86. The rotating ring 81 is sleeved on the outside of the valve body 2. Equidistant arc-shaped grooves are formed in the inner wall of the rotating ring 81, and the end part of the arc-shaped rod 82 is fixedly connected with the inner wall of the arc-shaped groove. The sliding block 83 is equidistantly fixedly connected with the outer wall of the valve body 2, and the sliding block 83 is slidably and penetratingly connected with the arc-shaped rod 82. The fourth compression spring 84 is sleeved on the outside of the arc-shaped rod 82. One end of the fourth compression spring 84 is fixedly connected with the sliding block 83, and the other end of the fourth compression spring 84 is fixedly connected with the inner wall of the arc-shaped groove. The first clamping assembly 85 is arranged between the valve body 2 and the rotating ring 81, and is used to fix the valve body 2 at multiple positions. The second clamping assembly 86 is arranged between the rotating ring 81 and the fixed plate 71, and is used to fix the filtering plate 72 at multiple positions. By rotating the rotating ring 81 in different directions, the first clamping assembly 85 and the second clamping assembly 86 can be respectively displaced, so that the valve body 2 or the filtering plate 72 can be disassembled, which is convenient to use.

[0078] Further, the first clamping assembly 85 comprises a clamping rod 851, a pull rod 852, a sliding plate 853 and a fifth compression spring 854, the outer wall of the valve body 2 is equidistantly provided with a clamping groove, the inner wall of the pressure relief pipe 1 is equidistantly provided with a clamping hole, one end of the clamping rod 851 is slidably connected with the inner cavity of the clamping groove, the other end of the clamping rod 851 is slidably connected with the inner cavity of the clamping hole; the pull rod 852 is fixedly connected to the top end of the clamping rod 851, the outer wall of the valve body 2 is provided with a pull groove in communication with the clamping groove, the pull rod 852 is slidably connected with the inner cavity of the pull groove, the bottom end of the rotating ring 81 is equidistantly provided with an extrusion groove, the pull rod 852 is slidably connected with the inner cavity of the extrusion groove; the sliding plate 853 is fixedly connected to the top end of the pull rod 852, the top end of the extrusion groove is provided with a sliding groove for the sliding of the sliding plate 853; the fifth compression spring 854 is located in the clamping groove, one end of the fifth compression spring 854 is fixedly connected with the inner wall of the clamping groove, the other end of the fifth compression spring 854 is fixedly connected with the clamping rod 851, and the fifth compression spring 854 is always in a compressed state, so as to provide a stable elastic force for the clamping rod 851, so that the clamping rod 851 can be stably clamped with the clamping hole, when the rotating ring 81 rotates counterclockwise, the sliding groove and the extrusion groove can be used to extrude the sliding plate 853 and the pull rod 852, so that the pull rod 852 can pull the clamping rod 851 away from the clamping hole, thereby achieving the disassembly of the entire valve body 2, and the specific shape of the sliding groove and the extrusion groove is shown in Figure 7 , which is an arc-shaped L-shaped, a shorter section can be used to achieve extrusion sliding, and the fixed installation of the valve body 2 can be released, or a longer section can be used to slide inside to keep the clamping state unchanged when the rotating ring 81 rotates clockwise.

[0079] Further, the second clamping assembly 86 comprises a rotating plate 861 and an L-shaped rod 862, the outer wall of the rotating ring 81 is equidistantly provided with a plurality of T-shaped grooves, the rotating plate 861 is slidably connected with the inner cavity of the T-shaped groove, and one end of the L-shaped rod 862 is fixedly connected to the top end of the rotating plate 861; the outer wall of the fixed plate 71 is equidistantly provided with a penetrating groove, the outer wall of the filter plate 72 is equidistantly provided with a C-shaped groove, and the other end of the L-shaped rod 862 slidably penetrates the penetrating groove and the inner cavity of the C-shaped groove, when the rotating ring 81 rotates clockwise, the L-shaped rod 862 can be rotated clockwise by the rotating plate 861, at this time, the clamping state of the first clamping assembly 85 will not be affected, and similarly, when the rotating ring 81 rotates counterclockwise, the rotating plate 861 will be inside the T-shaped groove, keeping the position of the L-shaped rod 862 unchanged, so that the clamping state of the L-shaped rod 862 to the filter plate 72 remains unchanged, and the C-shaped groove of the filter plate 72 is shown in Figure 8 , the filter plate 72 can be pressed down, and the L-shaped rod 862 can be rotated clockwise by the rotating ring 81, so that the filter plate 72 can be popped out by the ejection of the ejection rod 74 when the L-shaped rod 862 is rotated to the outlet, facilitating disassembly.

[0080] Further, the bottom end of the valve body 2 is fixedly connected with the second sealing ring 10 in contact with the inner wall of the pressure relief pipeline 1, and the bottom end of the sealing body 5 is fixedly connected with the third sealing ring 11 for blocking the gas flow, so that the valve body 2 can keep a sealed state after being installed on the pressure relief pipeline 1, and the third sealing ring 11 can ensure that the sealing body 5 and the pressure relief pipeline 1 are in a sealed state when there is no high-pressure gas flow.

[0081] The working principle of the present application is as follows: when the valve body 2 and the pressure relief pipeline 1 are installed, the rotating ring 81 is counterclockwise rotated, the sliding groove and the extrusion groove are used to extrude the sliding plate 853 and the pull rod 852, so that the pull rod 852 can pull the clamping rod 851 to be accommodated in the clamping groove of the valve body 2, at this time, the valve body 2 can be placed at the required installation position of the pressure relief pipeline 1, and by rotating, the rotating ring 81 can be reset under the elastic force of the fourth compression spring 84, so that the clamping rod 851 is popped out of the valve body 2 again and clamped with the clamping hole, thereby achieving the installation of the valve body 2, at this time, the rotating rod 62 can be rotated, the rotating rod 62 can drive the guide rod 61 to rotate when rotating, and the extrusion sleeve 63 can slide in the static valve core 3, so that the compression degree of the first compression spring 64 can be adjusted, thereby the pressure relief pressure value of the entire valve body 2 can be adjusted, after being adjusted to the required value of the engine, the rotating ring 81 can be clockwise rotated, so that the L-shaped rod 862 can be clockwise rotated by the rotating plate 861, the filter plate 72 can be pressed into the inside of the fixed plate 71, and the C-shaped groove opening of the filter plate 72 can be inserted with the L-shaped rod 862, at this time, the L-shaped rod 862 can be slid to the deep part of the C-shaped groove under the elastic force of the third compression spring 75, so that the filter plate 72 can be fixedly installed, at this time, the entire valve body 2 is installed.

[0082] When used, the first magnet 6510 and the second magnet 6511 are mutually adsorbed when there is no high-pressure gas discharge, the telescopic rod 659 can limit the connecting rod 656, so that the sealing plug 653 cannot move, thereby ensuring the sealing effect of the sealing body 5 on the pressure relief pipeline 1, when there is high-pressure gas discharge, the sealing body 5 moves upward with the dynamic valve core 4, at this time, the extrusion rod 6512 can extrude the telescopic rod 659 provided with a slope, so that the telescopic rod 659 is displaced, and the sliding hole provided thereon is extruded to be directly above the connecting rod 656, at this time, the sealing plug 653 can be opened under the pushing of the high-pressure gas, the high-pressure gas flows into the inside of the guide rod 61 through the fixed sleeve 651, and is discharged after being filtered by the filter plate 72, thereby achieving the auxiliary discharge of the high-pressure gas, accelerating the exhaust speed, improving the pressure relief effect of the pressure relief valve on the engine, and enhancing the protection capability of the engine.

[0083] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pressure relief valve for a turbocharged engine, comprising a pressure relief pipe (1) and a valve body (2) disposed on the pressure relief pipe (1), characterized in that, A stationary valve core (3) is fixedly installed inside the valve body (2), and a movable valve core (4) is slidably arranged inside the valve body (2). A sealing body (5) is snapped onto the movable valve core (4). An auxiliary pressure relief device is provided inside the valve body (2), and the auxiliary pressure relief device includes: An auxiliary pressure relief mechanism (6) is disposed inside the valve body (2), and the auxiliary pressure relief mechanism (6) includes: The guide rod (61) is rotatably mounted inside the valve body (2) via a bearing. The guide rod (61) is used to guide the moving valve core (4). The guide rod (61) has a through groove for gas flow inside. The guide rod (61) is used to assist in gas discharge and pressure relief. The through groove has a hexagonal cross section. Vent holes are provided on both sides of the stationary valve core (3). The outer wall of the guide rod (61) has an external thread. Rotating rod (62), the rotating rod (62) is disposed inside the filter mechanism (7), and the rotating rod (62) is slidably inserted into the inner cavity of the through groove; A compression sleeve (63) is threaded onto the outside of a guide rod (61), and the guide rod (61) adjusts the pressure relief value by driving the compression sleeve (63) to move. The first compression spring (64) has one end fixedly connected to the compression sleeve (63) and the other end fixedly connected to the inner wall of the moving valve core (4). A pressure relief assembly (65) is disposed between the sealing body (5) and the valve body (2) for assisting in the discharge of high-pressure gas. The pressure relief assembly (65) includes: Fixed sleeve (651), the fixed sleeve (651) is fixedly connected to the bottom end of the inner wall of the sealing body (5) at equal intervals. The bottom end of the sealing body (5) is provided with air inlet grooves that communicate with multiple fixed sleeves (651) at equal intervals. The side opposite to the fixed sleeve (651) is provided with air inlet holes that communicate with the inside of the moving valve core (4). A fixing rod (658) is fixedly connected to the inner wall of the fixing sleeve (651); Telescopic rod (659), the telescopic rod (659) is slidably sleeved on the outside of the fixed rod (658), the telescopic rod (659) has an inclined surface on the side away from the air inlet, and the top of the telescopic rod (659) has a sliding hole; The extrusion rod (6512) has one end fixedly connected to the inside of the valve body (2), and the other end of the extrusion rod (6512) is slidably inserted into the fixed sleeve (651). The extrusion rod (6512) cooperates with the telescopic rod (659). Positioning rod (66), which is symmetrically fixedly connected to the top end of rotating rod (62); Limiting block (67), both sides of the inner wall of the static valve core (3) are provided with limiting grooves, the limiting block (67) is slidably inserted into the inner cavity of the limiting groove, and the limiting block (67) is fixedly connected to the extrusion sleeve (63); The filter mechanism (7) is located at the top of the valve body (2) and is used to process the gas discharged by the auxiliary pressure relief mechanism (6). The mounting mechanism (8) is located outside the valve body (2) and is used to fix the valve body (2) and the filter mechanism (7).

2. A pressure relief valve for a turbocharged engine according to claim 1, characterized in that, The pressure relief assembly (65) also includes: An annular sleeve (652) is fixedly connected to the inner wall of the air inlet groove; A sealing plug (653) is slidably inserted into the inner cavity of an annular sleeve (652); Sleeve (654), the sleeve (654) is fixedly connected to the inner wall of the fixed sleeve (651); An extrusion plate (655) is located inside the sleeve (654); A connecting rod (656) has one end passing through a sleeve (654) and fixedly inserted into a pressing plate (655), and the other end of the connecting rod (656) is fixedly connected to a sealing plug (653). The connecting rod (656) and the inner cavity of the sliding hole cooperate with each other. The second compression spring (657) is sleeved on the outside of the connecting rod (656). One end of the second compression spring (657) is fixedly connected to the extrusion plate (655), and the other end of the second compression spring (657) is fixedly connected to the inner wall of the sleeve (654).

3. A pressure relief valve for a turbocharged engine according to claim 2, characterized in that, The pressure relief assembly (65) also includes: The first magnet (6510) is fixedly connected to the fixing rod (658); The second magnet (6511) is fixedly connected to one side of the inner wall of the telescopic rod (659). The fixed rod (658) and the second magnet (6511) are slidably interlocked. The first magnet (6510) and the second magnet (6511) cooperate with each other.

4. A pressure relief valve for a turbocharged engine according to claim 1, characterized in that, The extrusion rod (6512) is externally fixedly connected with a first sealing ring (9) to block the flow of gas between the extrusion rod (6512) and the fixed sleeve (651).

5. A pressure relief valve for a turbocharged engine according to claim 1, characterized in that, The filtration mechanism (7) includes: A fixed plate (71) is fixedly connected to the top of the valve body (2), and the rotating rod (62) is rotatably disposed inside the fixed plate (71); The filter plate (72) is located inside the fixed plate (71). The bottom end of the filter plate (72) is provided with positioning holes at equal intervals. The positioning rod (66) is slidably inserted into the inner cavity of the positioning hole. The ejector plate (73) has ejector grooves equidistantly provided on the inner wall of the fixing plate (71), and the ejector plate (73) is located inside the ejector grooves; The bottom end of the filter plate (72) is provided with ejector rod (74), one end of the ejector rod (74) is fixedly connected to the ejector plate (73), and the other end of the ejector rod (74) is slidably inserted into the inner cavity of the ejector hole. The third compression spring (75) is located inside the ejector groove. One end of the third compression spring (75) is fixedly connected to the ejector plate (73), and the other end of the third compression spring (75) is fixedly connected to the inner wall of the ejector groove.

6. A pressure relief valve for a turbocharged engine according to claim 5, characterized in that, The installation mechanism (8) includes: Rotating ring (81), the rotating ring (81) is sleeved on the outside of valve body (2); The inner wall of the rotating ring (81) is provided with arc-shaped grooves at equal intervals, and the end of the arc-shaped rod (82) is fixedly connected to the inner wall of the arc-shaped groove. The slider (83) is fixedly connected to the outer wall of the valve body (2) at equal intervals, and the slider (83) is slidably inserted into the arc rod (82); The fourth compression spring (84) is sleeved on the outside of the arc-shaped rod (82). One end of the fourth compression spring (84) is fixedly connected to the slider (83), and the other end of the fourth compression spring (84) is fixedly connected to the inner wall of the arc-shaped groove. The first snap-fit ​​assembly (85) is disposed between the valve body (2) and the rotating ring (81) for fixing the valve body (2) at multiple points; The second snap-fit ​​assembly (86) has a rotating ring (81) between the fixed plates (71) for fixing the filter plate (72) at multiple points.

7. A pressure relief valve for a turbocharged engine according to claim 6, characterized in that, The first card connector (85) includes: The valve body (2) has equidistant locking grooves on its outer wall and locking holes on its inner wall. One end of the locking rod (851) is slidably inserted into the inner cavity of the locking groove, and the other end of the locking rod (851) is slidably inserted into the inner cavity of the locking hole. A pull rod (852) is fixedly connected to the top of a snap-fit ​​rod (851). The outer wall of the valve body (2) is provided with a pull groove that communicates with the snap-fit ​​groove. The pull rod (852) is slidably inserted into the inner cavity of the pull groove. The bottom end of the rotating ring (81) is provided with an extrusion groove at equal intervals. The pull rod (852) is slidably inserted into the inner cavity of the extrusion groove. The slide plate (853) is fixedly connected to the top of the pull rod (852), and the top of the extrusion groove is provided with a sliding groove for the slide plate (853) to slide. The fifth compression spring (854) is located inside the snap-fit ​​groove. One end of the fifth compression spring (854) is fixedly connected to the inner wall of the snap-fit ​​groove, and the other end of the fifth compression spring (854) is fixedly connected to the snap-fit ​​rod (851).

8. A pressure relief valve for a turbocharged engine according to claim 6, characterized in that, The second snap-fit ​​assembly (86) includes: The rotating plate (861) has multiple T-shaped grooves equidistantly provided on the outer wall of the rotating ring (81), and the rotating plate (861) is slidably inserted into the inner cavity of the T-shaped grooves; L-shaped rod (862), one end of which is fixedly connected to the top of rotating plate (861), the outer wall of fixed plate (71) is provided with through slots at equal intervals, the outer wall of filter plate (72) is provided with C-shaped grooves at equal intervals, and the other end of L-shaped rod (862) passes through through slots and slides through the inner cavity of C-shaped grooves.

9. A pressure relief valve for a turbocharged engine according to claim 1, characterized in that, The bottom end of the valve body (2) is fixedly connected to a second sealing ring (10) that contacts the inner wall of the pressure relief pipe (1), and the bottom end of the sealing body (5) is fixedly connected to a third sealing ring (11) that blocks the flow of gas.

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