Heat preservation and dust prevention type machine room pressure relief device

Abstract

The invention discloses a heat preservation and dust prevention type machine room pressure relief device, and relates to the technical field of pressure relief equipment, according to the technical scheme, the heat preservation and dust prevention type machine room pressure relief device comprises a door frame and a door body, the door body and the door frame are connected through a hinge, two lock grooves are formed in the door frame, and the heat preservation and dust prevention type machine room pressure relief device further comprises a shell fixedly embedded in one side of the door body; the cylinder is fixedly embedded in the door body, the cylinder penetrates through one side of the shell and is fixedly connected with the shell, and a pressure relief assembly is arranged in the cylinder; the locking assembly is used for keeping the door body and the door frame closed; the pressure relief assembly has the beneficial effects that the pressure relief assembly is composed of the sealing seat, the sealing plug, the air cushion, the shell and the like, when the pressure relief assembly is used, the sealing plug makes contact with the sealing seat to achieve primary sealing, the air cushion makes contact with the sealing seat to achieve secondary sealing, and therefore the sealing effect can be improved; therefore, when the pressure intensity in the machine room is increased, the phenomenon of air leakage is avoided, and the pressure intensity in the machine room reaches the test standard in a short time.

Description

Technical Field

[0001] The invention relates to the technical field of pressure relief equipment, and in particular to a heat-insulating and dust-proof pressure relief device for a machine room. Background Art

[0002] The computer room is a place with strict environmental requirements and is used to centrally place various electronic devices to achieve specific functions. The computer room can also be used to test electronic equipment. Some electronic equipment may be used at high altitudes or in special air pressure environments. In this way, by increasing the internal pressure of the computer room during testing, the working state of the equipment under different air pressure conditions can be simulated, and the performance and sealing of the equipment in these environments can be tested in advance, as well as whether there will be failures caused by air pressure changes. During the test, a pressure relief device is also required in the computer room. After the test, the pressure is relieved first to restore the pressure inside the computer room to normal. The existing pressure relief device has a poor sealing effect when in use. When the pressure inside the computer room is increased, air leakage easily occurs, which causes the pressure inside the computer room to fail to meet the test standard. Therefore, it needs to be improved. For this reason, it is necessary to invent a heat-insulating and dust-proof machine room pressure relief device. Summary of the invention

[0003] To this end, the present invention provides a heat-insulating and dust-proof machine room pressure relief device to solve the problems in the background technology.

[0004] In order to achieve the above object, the present invention provides the following technical solution: a heat-insulating and dust-proof machine room pressure relief device, comprising: a door frame and a door body, wherein the door body and the door frame are connected by a hinge, and two lock grooves are provided on the door frame, and further comprising: A shell, wherein the shell is fixedly embedded in one side of the door body; A cylinder is fixedly embedded in the door body, the cylinder passes through one side of the outer shell and is fixedly connected thereto, and a pressure relief component is arranged inside the cylinder; A locking assembly, which is used to keep the door body and the door frame tightly closed; The auxiliary component is used to control the pressure relief component and the locking component to work.

[0005] Preferably, a circular frame is fixedly connected to the door frame, and a sealing ring is fixedly connected to the other side of the door body, and the sealing ring is circular-shaped.

[0006] Preferably, the pressure relief assembly includes a sealing seat, which is fixedly connected to the inside of the cylinder, and the opening cross-section of the sealing seat is set to a cone shape. A sealing plug is slidably provided in the sealing seat, and the sealing plug fits with the opening of the sealing seat. An annular groove is provided on the sealing plug, and an air cushion is fixedly connected to the inside of the annular groove, and the air cushion fits with the inner wall of the sealing seat. One side of the sealing plug is fixedly connected to a connecting block, and one side of the connecting block is fixedly connected to a shell, four through grooves are provided on the shell, and four positioning rods are slidably provided on the shell, and the ends of the four positioning rods are fixedly connected to the inner wall of one side of the cylinder, and a pipe 1 is fixedly embedded in the sealing seat, the cylinder and the door body.

[0007] Preferably, four box bodies are fixedly connected to the shell, one side of the four box bodies are set to be open, pistons are slidably provided inside the four box bodies, the four box bodies are fixedly connected to pipes 2 between the air cushions, the four pipes 2 are fixedly embedded in the sealing plug and the connecting block, one side of the four pistons are fixedly connected to moving rods, push plates are slidably provided inside the four through grooves, the ends of the four moving rods are fixedly connected to the push plates, the cylinder is fixedly connected to a support rod, a threaded rod is embedded in the support rod, the threaded rod passes through one side of the cylinder, a threaded block is sleeved on the outside of the threaded rod, the threaded block is connected to the threaded rod by threads, one side of the push plate is fixedly connected to a U-shaped rod, the U-shaped rod passes through one side of the shell and slides in contact with it, the threaded block is fixedly connected to the inside of the U-shaped rod, and the threaded rod is connected to the shell and the support rod through bearings.

[0008] Preferably, one side of the push plate is fixedly connected to a magnetic ring 1, and an inner wall of one side of the shell is fixedly connected to a magnetic ring 2, and the magnetic ring 1 and the magnetic ring 2 are both sleeved on the outside of the U-shaped rod, and the shell is provided with four circumferentially evenly distributed stable components on the outside, and the stable component comprises a U-shaped frame, the U-shaped frame is fixedly connected to the top of the shell, one side of the U-shaped frame is fixedly connected to a support plate, one side of the support plate is fixedly connected to an insertion block, and the inner wall of the top of the cylinder is fixedly connected to two support rods, and two connecting rods are fixedly connected between the two support rods. A rotating frame is sleeved on the two connecting rods, and rollers are connected to the two rotating frames, and the two rollers are in sliding contact with the insertion block. The outsides of the two connecting rods are sleeved with torsion springs, and the inner ends of the two torsion springs are respectively fixedly connected to the front and rear sides of the rotating frame. The outer ends of the two torsion springs are respectively fixedly connected to the inner sides of the two support rods, and two blocking rods are also fixedly connected between the two support rods, and the two blocking rods are respectively in contact with the inner sides of the two rotating frames, and the rotating frame is connected to the connecting rod through a bearing.

[0009] Preferably, the locking assembly includes a cavity 1, which is opened on the door body, and one side of the cavity 1 is connected to a rotating shaft 1, one end of the rotating shaft 1 extends to the inside of the shell, and a turntable is fixedly sleeved on the outside of the rotating shaft 1, and the turntable is located inside the cavity 1. Two clamping rods are slidably embedded in the door body, and the inner ends of the two clamping rods are both located inside the cavity 1, and the inner ends of the two clamping rods are both embedded with a convex rod 1, and two convex rods 2 are fixedly embedded on the turntable, and pull rods are connected between the two convex rods 1 and the two convex rods 2 respectively, and the pull rods are connected to the convex rods 1 and 2 through bearings, and the rotating shaft 1 is connected to the shell and the door body through bearings.

[0010] Preferably, the auxiliary component includes a fixed rod, which is fixedly connected to the inner wall of one side of the shell, and a second rotating shaft is movably sleeved on the outside of the fixed rod, and the second rotating shaft passes through the other side of the shell and is in movably contact with it. A knob is fixedly connected to one end of the second rotating shaft, and sleeves are fixedly connected to the inner walls on both sides of the shell, and the two sleeves are movably sleeved on the outside of the second rotating shaft, and a rotating shaft three is connected to the inner wall on the other side of the shell, and the rotating shaft three is fixedly connected to one end of the threaded rod, and a gear one is fixedly sleeved on the outside of the third rotating shaft, and a gear two meshingly connected to the first gear is provided on the front side of the first gear, and the gear two is sleeved on the outside of one of the sleeves and connected to it through a bearing, and a gear three is sleeved on the outside of the other sleeve and connected to it through a bearing, and a gear four meshingly connected to the third gear is provided on the front side of the third gear, and the gear four is fixedly sleeved on the outside of the first rotating shaft.

[0011] Preferably, a circular ring is provided on the outer fixed sleeve of the rotating shaft 2, and two plug rods 1 are fixedly embedded on the circular ring. Two through holes are provided on the gear 2 and the gear 3, and the four ends of the two plug rods 1 are respectively aligned with the four through holes. Two hollow shells are fixedly connected to the inner walls on both sides of the shell, and plug rods 2 are slidably provided inside the four hollow shells. The four plug rods 2 respectively penetrate the four through holes and slide in contact with them. Springs are provided inside the four hollow shells, and the inner ends of the four springs are respectively fixedly connected to the outer ends of the four plug rods 2, and the outer ends of the four springs are fixedly connected to the inner wall of the shell, an indicator rod is fixedly connected to the front side of the rotating shaft 2, and an indicator block is fixedly connected to the other side of the shell, and the rotating shaft 3 is connected to the shell through a bearing.

[0012] Preferably, a handle is fixedly connected to one side of the door body.

[0013] The beneficial effects of the present invention are: The present invention designs a pressure relief assembly composed of a sealing seat, a sealing plug, an air cushion, a shell and other components. When in use, the sealing plug contacts the sealing seat to achieve a single seal, and the air cushion contacts the sealing seat to achieve a double seal, thereby increasing the sealing effect. When the pressure inside the machine room is increased, no air leakage occurs, thereby causing the pressure inside the machine room to reach the test standard in a short time. The present invention designs a locking assembly so that the sealing ring on the door body and the circular frame on the door frame can be closely contacted when in use, thereby avoiding a gap between the door body and the door frame, thereby preventing external dust and cold air from entering the machine room, thus achieving the effect of heat preservation and dust prevention; The present invention designs an auxiliary component, which can independently control the pressure relief component or the locking component to work when in use, and the auxiliary component has its own limiting function, so that when the auxiliary component does not work or when one of the pressure relief component and the locking component is independently controlled to work, the other component can be prevented from working, which is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0016] Figure 1 A schematic diagram of the overall structure provided by the present invention; Figure 2 The main cross-sectional view provided by the present invention Figure 1 ; Figure 3 The present invention provides Figure 2 A in the enlarged view; Figure 4 The main cross-sectional view provided by the present invention Figure 2 ; Figure 5 The present invention provides Figure 4 The enlarged view of point B in the figure; Figure 6 An exploded perspective view provided by the present invention; Figure 7 The present invention provides Figure 6 The enlarged view of point C in the figure; Figure 8 The present invention provides Figure 6 A cross-sectional view of the middle part from above; Fig. 9 The present invention provides Figure 8 The enlarged view of D in the figure; Fig.10 A three-dimensional cross-sectional view of the cylinder, the rotating shaft 3, the gear 1 and the internal components of the cylinder provided by the present invention; Fig.11 The present invention provides Fig.10 The enlarged view of point E in the figure; Fig.12 A three-dimensional exploded view of the cylinder, the third rotating shaft, the first gear and the internal components of the cylinder provided by the present invention; Fig.13 The present invention provides Fig.12 The enlarged view of F in the figure; Fig.14 The present invention provides Figure 1 Side view Figure 1 ; Fig.15 The present invention provides Figure 1 Side view Figure 2 ; Fig.16 The present invention provides Fig.15 The enlarged view of G in the figure; Fig.17 A side view provided for the present invention; In the figure: 1, door frame; 2, door body; 3, lock groove; 4, shell; 5, cylinder; 6, circular frame; 7, sealing ring; 8, sealing seat; 9, sealing plug; 10, air cushion; 11, connecting block; 12, shell; 13, positioning rod; 14, pipeline 1; 15, box; 16, piston; 17, pipeline 2; 18, moving rod; 19, push plate; 20, support rod; 21, threaded rod; 22, threaded block; 23, U-shaped rod; 24, magnetic ring 1; 25, magnetic ring 2; 26, U-shaped frame; 27, support plate; 28, plug block; 29, support rod; 30, Connecting rod; 31, rotating frame; 32, roller; 33, torsion spring; 34, stop rod; 35, rotating shaft 1; 36, turntable; 37, clamping rod; 38, protruding rod 1; 39, protruding rod 2; 40, pulling rod; 41, fixing rod; 42, rotating shaft 2; 43, knob; 44, sleeve; 45, rotating shaft 3; 46, gear 1; 47, gear 2; 48, gear 3; 49, gear 4; 50, ring; 51, plug rod 1; 52, through hole; 53, hollow shell; 54, plug rod 2; 55, spring; 56, indicator rod; 57, indicator block; 58, handle. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0018] See attached Figure 1 -Attached Fig.17 The present invention provides a heat-insulating and dust-proof machine room pressure relief device, comprising: a door frame 1 and a door body 2, the door body 2 and the door frame 1 are connected by a hinge, and the door frame 1 is provided with two lock slots 3, characterized in that it also includes: The outer shell 4 is fixedly embedded in one side of the door body 2; The cylinder 5 is fixedly embedded in the door body 2, passes through one side of the outer shell 4 and is fixedly connected thereto, and a pressure relief component is provided inside the cylinder 5; A locking assembly, which is used to keep the door body 2 and the door frame 1 tightly closed; An auxiliary component, which is used to control the pressure relief component and the locking component to work; A circular frame 6 is fixedly connected to the door frame 1, and a sealing ring 7 is fixedly connected to the other side of the door body 2, and the sealing ring 7 is circular; The pressure relief assembly includes a sealing seat 8, which is fixedly connected to the inside of the cylinder 5. The opening cross-section of the sealing seat 8 is set to a cone. A sealing plug 9 is slidably provided in the sealing seat 8, and the sealing plug 9 fits with the opening of the sealing seat 8. An annular groove is provided on the sealing plug 9, and an air cushion 10 is fixedly connected inside the annular groove. The air cushion 10 fits with the inner wall of the sealing seat 8. A connecting block 11 is fixedly connected to one side of the sealing plug 9, and a shell 12 is fixedly connected to one side of the connecting block 11. Four through grooves are provided on the shell 12, and four positioning rods 13 are slidably provided on the shell 12. The ends of the four positioning rods 13 are all fixedly connected to the inner wall of one side of the cylinder 5. A pipe 14 is fixedly embedded in the sealing seat 8, the cylinder 5 and the door body 2. Four boxes 15 are fixedly connected to the shell 12, and one side of the four boxes 15 is set to be open. The insides of the four boxes 15 are all sliding. A piston 16 is provided, and a pipe 2 17 is fixedly connected between the four boxes 15 and the air cushion 10. The four pipes 2 17 are fixedly embedded in the sealing plug 9 and the connecting block 11. A moving rod 18 is fixedly connected to one side of the four pistons 16. A push plate 19 is slidably provided inside the four through grooves. The ends of the four moving rods 18 are fixedly connected to the push plate 19. A support rod 20 is fixedly connected to the inside of the cylinder 5. A threaded rod 21 is embedded on the support rod 20. The threaded rod 21 passes through one side of the cylinder 5. A threaded block 22 is sleeved on the outside of the threaded rod 21. The threaded block 22 is connected to the threaded rod 21 through threads. A U-shaped rod 23 is fixedly connected to one side of the push plate 19. The U-shaped rod 23 passes through one side of the shell 12 and is in sliding contact with it. The threaded block 22 is fixedly connected to the inside of the U-shaped rod 23. The threaded rod 21 is connected to the shell 12 and the support rod 20 through bearings.

[0019] In this embodiment, a pressure relief assembly is designed, which is composed of a sealing seat 8, a sealing plug 9, an air cushion 10, a housing 12 and other components. When in use, the sealing plug 9 contacts the sealing seat 8 to achieve a single seal, and the air cushion 10 contacts the sealing seat 8 to achieve a double seal, thereby increasing the sealing effect. Among them, in order to achieve the purpose of heat preservation and dust prevention, the present device adopts the following technical solutions: the locking component includes a cavity 1, the cavity 1 is opened on the door body 2, one side of the cavity 1 is connected to a rotating shaft 1 35, one end of the rotating shaft 1 35 extends to the inside of the shell 4, the rotating shaft 1 35 is fixedly sleeved with a rotating disk 36 outside, the rotating disk 36 is located inside the cavity 1, two clamping rods 37 are slidably embedded on the door body 2, the inner ends of the two clamping rods 37 are both located inside the cavity 1, the inner ends of the two clamping rods 37 are both embedded with a convex rod 1 38, and the rotating disk 36 is fixedly embedded with two convex rods Two convex rods 39, two convex rods 1 38 are respectively connected to the two convex rods 2 39 with a pull rod 40, the pull rod 40 is connected to the convex rods 1 38 and the convex rods 2 39 through bearings, the rotating shaft 1 35 is connected to the housing 4 and the door body 2 through bearings, and the locking assembly is designed so that the sealing ring 7 on the door body 2 and the circular frame 6 on the door frame 1 can be closely contacted together when in use, so that a gap between the door body 2 and the door frame 1 can be avoided, thereby preventing external dust and cold air from entering the machine room, so that the effect of heat preservation and dust prevention can be achieved; Among them, in order to achieve the purpose of controlling the pressure relief component and the locking component to work, the present device adopts the following technical solutions: the auxiliary component includes a fixed rod 41, the fixed rod 41 is fixedly connected to the inner wall of one side of the shell 4, the fixed rod 41 is movably sleeved with a rotating shaft 2 42 on the outside, the rotating shaft 2 42 passes through the other side of the shell 4 and is in movably contact with it, and a knob 43 is fixedly connected to one end of the rotating shaft 2 42, and sleeves 44 are fixedly connected to the inner walls on both sides of the shell 4, and the two sleeves 44 are movably sleeved on the outside of the rotating shaft 2 42, and a rotating shaft 3 45 is connected to the inner wall on the other side of the shell 4, and the rotating shaft 3 45 is fixedly connected to one end of the threaded rod 21, and a gear 1 46 is fixedly sleeved on the outside of the rotating shaft 3 45, and a gear 2 47 meshingly connected to the gear 1 46 is provided on the front side of the gear 1 46, and the gear 2 47 is sleeved on the outside of one of the sleeves 44 and connected to it through a bearing, and a gear 3 48 is sleeved on the outside of the other sleeve 44 and the gear 3 48 is connected to it through a bearing, and the gear 3 48 is provided on the front side The meshing gear 49 is fixedly sleeved on the outside of the rotating shaft 1 35. The rotating shaft 2 42 is fixedly sleeved with a ring 50 on the outside. Two plug rods 1 51 are fixedly embedded on the ring 50. Two through holes 52 are provided on the gear 2 47 and the gear 3 48. The four ends of the two plug rods 1 51 are aligned with the four through holes 52 respectively. Two hollow shells 53 are fixedly connected to the inner walls of both sides of the shell 4. The four hollow shells 53 are slidably provided with plug rods 2 54 inside. The four plug rods 2 54 respectively penetrate the four through holes 52 and slide in contact with them. Springs 55 are provided inside the four hollow shells 53. The inner ends of the four springs 55 are fixedly connected to the outer ends of the four plug rods 2 54 respectively. The outer ends of the four springs 55 are fixedly connected to the inner wall of the shell 4. An indicator rod 56 is fixedly connected to the front side of the rotating shaft 2 42. An indicator block 57 is fixedly connected to the other side of the shell 4. The rotating shaft 3 45 is connected to the shell 4 through a bearing. The auxiliary component can control the pressure relief component and the locking component to work. Among them, in order to achieve the purpose of orderly operation, the present device adopts the following technical solutions: a magnetic ring 24 is fixedly connected to one side of the push plate 19, a magnetic ring 25 is fixedly connected to the inner wall of one side of the shell 12, the magnetic ring 24 and the magnetic ring 25 are both sleeved on the outside of the U-shaped rod 23, and four circumferentially evenly distributed stable components are provided on the outside of the shell 12, and the stable components include a U-shaped frame 26, the U-shaped frame 26 is fixedly connected to the top of the shell 12, a support plate 27 is fixedly connected to one side of the U-shaped frame 26, and an insert block 28 is fixedly connected to one side of the support plate 27, two support rods 29 are fixedly connected to the inner wall of the top of the cylinder 5, and two connecting rods 30 are fixedly connected between the two support rods 29, and the two connecting rods 30 are sleeved with a rotating frame 31, and the two rotating frames 31 The two rollers 32 are connected to the upper and lower parts, and the two rollers 32 are in sliding contact with the insert block 28. The outsides of the two connecting rods 30 are sleeved with torsion springs 33, and the inner ends of the two torsion springs 33 are fixedly connected to the front and rear sides of the rotating frame 31 respectively. The outer ends of the two torsion springs 33 are fixedly connected to the inner sides of the two support rods 29 respectively. Two baffle rods 34 are also fixedly connected between the two support rods 29, and the two baffle rods 34 are in contact with the inner sides of the two rotating frames 31 respectively. The rotating frame 31 is connected to the connecting rod 30 through a bearing. The design of the magnetic ring 1 24, the magnetic ring 25 and the stabilizing component can achieve that when the pressure is released, the air in the air cushion 10 is sucked back first, and the sealing plug 9 is separated from the sealing seat 8 later. When sealing, the sealing plug 9 contacts the sealing seat 8 first and the air cushion 10 is inflated later.

[0020] The use process of the present invention is as follows: the door frame 1 is installed on the wall of the machine room, and then the knob 43 is pressed to move the rotating shaft 2 42, the ring 50 and the two plug rods 1 51 in the direction close to the gear 3 48, so that the two plug rods 1 51 can be inserted into the two through holes 52 on the gear 3 48, and at the same time, the two plug rods 2 54 in the two through holes 52 are pushed out, and the two springs 55 close to the gear 3 48 are compressed. When the ring 50 contacts the gear 3 48, the right end of the plug rod 1 51 contacts the gear 3 The right side of gear 48 is flush, and the two plug rods 2 54 are completely removed from the through holes 52 on gear 3 48. Then the knob 43 is turned to make it rotate half a circle, wherein the rotation of the knob 43 can make the shaft 2 42, the ring 50 and the two plug rods 1 51 rotate, the two plug rods 1 51 rotate to drive the gear 3 48 to rotate, the gear 3 48 rotates to drive the gear 4 49 to rotate, the gear 4 49 rotates to drive the shaft 1 35 and the turntable 36 to rotate, and since the pull rod 40 is connected to the convex rod 1 38 and the convex rod 2 39 through the bearing, The two levers 37 are movable, so that the turntable 36 rotates under the action of the two pull rods 40 to move the two levers 37 toward the middle, and then the door body 2 is pushed to close the door body 2, and at the same time, the sealing ring 7 on the door body 2 fits together with the circular frame 6, and then the knob 43 is rotated half a circle in the opposite direction, so that the turntable 36 can be reversed, so that the two levers 37 can be pushed to move outward, and then the ends of the two levers 37 can be stuck in the two lock grooves 3, wherein the ends of the levers 37 have oblique openings, and the edges of the lock grooves 3 are arc-shaped, When the end of the clamping rod 37 moves into the lock groove 3, the oblique opening of the clamping rod 37 will contact the edge of the lock groove 3. When the oblique opening is completely moved into the lock groove 3, the door body 2 can be moved closer to the circular frame 6 by a certain distance. In this way, the sealing ring 7 on the door body 2 and the circular frame 6 on the door frame 1 can be closely contacted together, so that a gap between the door body 2 and the door frame 1 can be avoided, thereby preventing dust and cold air from entering the machine room, thus achieving the effect of heat preservation and dust prevention. When the door body 2 is closed, the knob 43 is pulled back, so that the second shaft 42, the ring 50 and the two insertion rods 1 51 can be reset, and at the same time, the two springs 55 close to the gear 3 48 will rebound, so that the two insertion rods 2 54 close to the gear 3 48 can be inserted into the two through holes 52 on the gear 3 48 again, so that the gear 3 48 can be prevented from rotating randomly, and then the gear 4 49, the shaft 1 35, the turntable 36 and other components can be prevented from rotating randomly, so that the card rod 37 can be prevented from being moved out of the lock slot 3 randomly; When the door 2 is closed, pressure can be applied to the interior of the machine room to test the electronic equipment. After the test, the pressure can be released. When releasing the pressure, the knob 43 is pulled to move the rotating shaft 2 42, the ring 50 and the plug rod 1 51 in the direction close to the gear 2 47, so that the two plug rods 1 51 can be inserted into the two through holes 52 on the gear 2 47, and the two plug rods 2 54 in the two through holes 52 are pushed out, and the two springs 55 close to the gear 2 47 are compressed. When the ring 50 contacts the gear 2 47, the left end of the plug rod 1 51 is flush with the left side of the gear 2 47, and the two plug rods 2 54 are completely moved out of the through holes 52 on the gear 2 47. Then the knob 43 is turned to rotate the rotating shaft 2 42, the ring 50 and the two plug rods 1 51 to rotate. In this way, the rotation of the two plug rods 1 51 can cause the two gears 2 47 to rotate, and the rotation of the two gears 2 47 drives the gear 1 46 to rotate, and the rotation of the gear 1 46 drives the rotating shaft 3 45 to rotate, and the rotation of the rotating shaft 3 45 drives The movable threaded rod 21 rotates, and the rotation of the threaded rod 21 drives the threaded block 22 and the U-shaped rod 23 to move to the left. Then, under the action of the four stabilizing components, the U-shaped rod 23 moves to the left, which can make the push plate 19 move to the left first, so that the four moving rods 18 and the four pistons 16 can move to the left first. Then, under the action of the four pipes 17, the air in the air cushion 10 can be sucked back into the four boxes 15 first. When the push plate 19 moves to the left, the magnetic ring 1 24 will also move to the right. When the magnetic ring 1 24 and the magnetic ring 2 25 are sucked together, the air in the air cushion 10 is completely sucked back, so that the air cushion 10 will not contact the sealing seat 8. Then, the knob 43 is turned to make the threaded rod 21 continue to rotate, so that the U-shaped rod 23 and the push plate 19 continue to move to the left. At this time, the push plate 19 can pull the shell 12, the connecting block 11 and the sealing plug 9 to move to the left, so that the sealing plug 9 will not contact the sealing seat 8, and then the air can be discharged through the pipe 14, so that pressure relief can be achieved. When the housing 12 moves to the left, the U-shaped frame 26, the support plate 27 and the insert block 28 can also move to the left. Since the left and right sides of the insert block 28 are sharp, and the two rollers 32 are in sliding contact with the insert block 28, the two rotating frames 31 can be rotated with the two connecting rods 30 as the rotating axes during the movement of the insert block 28 to the left under the action of the two rollers 32, so that the angle between the two rotating frames 31 becomes larger, and the torsion spring 33 is compressed more severely, so that the insert block 28 can be smoothly moved out from between the two rollers 32; After the pressure relief is completed, the knob 43 is reversed to move the threaded block 22 to the right, so that the U-shaped rod 23 and the push plate 19 can move to the right. Since the magnetic ring 25 and the magnetic ring 1 24 are attracted together, the push plate 19, the housing 12, the connecting block 11 and the sealing plug 9 can move to the right at the same time. At the same time, the U-shaped frame 26, the support plate 27 and the plug block 28 will also move to the right. When the sealing plug 9 and the sealing seat 8 are in contact and closed together, the plug block 28 will pass between the two rollers 32. The suction force between the magnetic ring 1 24 and the magnetic ring 25 is much greater than the resistance of the roller 32 to open. In this way, the plug block 28 can smoothly pass between the two rollers 32 during the rightward movement. When the sealing seats 8 are in contact and closed together, a single seal can be achieved. Then, the knob 43 is reversed to make the threaded block 22 continue to move to the right. At this time, the housing 12, the connecting block 11 and the sealing plug 9 cannot move to the right. At this time, the U-shaped rod 23 can push the push plate 19, the four moving rods 18 and the four pistons 16 to move to the right, so that the air in the four boxes 15 can enter the air cushion 10, so that the air cushion 10 is inflated and bulged, and then contacts the inner wall of the sealing seat 8 to achieve a double seal, so that the sealing effect can be increased. In this way, when the pressure inside the machine room is increased, there will be no leakage, which will cause the pressure inside the machine room to reach the test standard in a short time; When the sealing plug 9 is in contact with the sealing seat 8 and the air cushion 10 is in contact with the sealing seat 8, the knob 43 is pushed back to reset the rotating shaft 2 42, the ring 50 and the two plug rods 1 51, and at the same time, the two springs 55 close to the gear 2 47 will rebound, so that the two plug rods 2 54 close to the gear 2 47 can be inserted into the two through holes 52 on the gear 2 47 again, so that the gear 2 47 can be prevented from rotating randomly, and the gear 1 46, the rotating shaft 3 45, the threaded rod 21 and other components can be prevented from rotating randomly, so that the sealing plug 9 can be prevented from separating from the sealing seat 8 and the air in the air cushion 10 can be returned to the box body 15, so as to keep the sealing effect all the time; Before pressing and pulling the knob 43 , the knob 43 can be rotated to align the indicator rod 56 on the second shaft 42 with the indicator plate, so that the insertion rod 1 51 can be smoothly inserted into the through hole 52 when pressing and pulling the knob 43 .

[0021] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention by using the above technical solutions or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention belongs to the scope of protection claimed by the present invention.

Claims

1. A heat-insulating and dust-proof machine room pressure relief device, comprising: A door frame (1) and a door body (2), wherein the door body (2) and the door frame (1) are connected via a hinge, and the door frame (1) is provided with two lock slots (3), characterized in that it further comprises: An outer shell (4), the outer shell (4) being fixedly embedded in one side of the door body (2); A cylinder (5) is fixedly embedded in the door body (2), the cylinder (5) passes through one side of the outer shell (4) and is fixedly connected thereto, and a pressure relief component is provided inside the cylinder (5); A locking assembly, used to keep the door body (2) and the door frame (1) tightly closed; An auxiliary component, which is used to control the pressure relief component and the locking component to work; The pressure relief assembly comprises a sealing seat (8), the sealing seat (8) being fixedly connected to the inside of the cylinder (5), the opening cross section of the sealing seat (8) being set to be conical, a sealing plug (9) being slidably provided in the sealing seat (8), the sealing plug (9) being fitted with the opening of the sealing seat (8), an annular groove being provided on the sealing plug (9), an air cushion (10) being fixedly connected inside the annular groove, the air cushion (10) being fitted with the inner wall of the sealing seat (8), a connecting block (11) being fixedly connected to one side of the sealing plug (9), a shell (12) being fixedly connected to one side of the connecting block (11), the shell (12) being provided with four through grooves, four positioning rods (13) being slidably provided on the shell (12), the ends of the four positioning rods (13) being fixedly connected to the inner wall of one side of the cylinder (5), and a pipe 1 (14) being fixedly embedded in the sealing seat (8), the cylinder (5) and the door body (2).

2. A heat-insulating and dust-proof machine room pressure relief device according to claim 1, characterized in that: A circular frame (6) is fixedly connected to the door frame (1), and a sealing ring (7) is fixedly connected to the other side of the door body (2), wherein the sealing ring (7) is circular-shaped.

3. A heat-insulating and dust-proof machine room pressure relief device according to claim 1, characterized in that: The shell (12) is fixedly connected to four boxes (15), one side of the four boxes (15) is set to be open, pistons (16) are slidably provided inside the four boxes (15), pipes (17) are fixedly connected between the four boxes (15) and the air cushion (10), the four pipes (17) are fixedly embedded in the sealing plug (9) and the connecting block (11), one side of the four pistons (16) is fixedly connected to a moving rod (18), a push plate (19) is slidably provided inside the four through grooves, and the ends of the four moving rods (18) are fixedly connected to the push plate (19), and the cylinder ( 5) is fixedly connected to a support rod (20) inside, a threaded rod (21) is embedded in the support rod (20), the threaded rod (21) passes through one side of the cylinder (5), a threaded block (22) is sleeved on the outside of the threaded rod (21), the threaded block (22) and the threaded rod (21) are connected by threads, a U-shaped rod (23) is fixedly connected to one side of the push plate (19), the U-shaped rod (23) passes through one side of the shell (12) and is in sliding contact with the shell (12), the threaded block (22) is fixedly connected to the inside of the U-shaped rod (23), and the threaded rod (21) is connected to the shell (12) and the support rod (20) by bearings.

4. A heat-insulating and dust-proof machine room pressure relief device according to claim 3, characterized in that: A magnetic ring 1 (24) is fixedly connected to one side of the push plate (19), a magnetic ring 2 (25) is fixedly connected to the inner wall of one side of the shell (12), the magnetic ring 1 (24) and the magnetic ring 2 (25) are both sleeved on the outside of the U-shaped rod (23), the outside of the shell (12) is provided with four stabilizing components evenly distributed in a circumferential shape, the stabilizing components include a U-shaped frame (26), the U-shaped frame (26) is fixedly connected to the top of the shell (12), a support plate (27) is fixedly connected to one side of the U-shaped frame (26), an insert block (28) is fixedly connected to one side of the support plate (27), two support rods (29) are fixedly connected to the inner wall of the top of the cylinder (5), and two support rods (29) are fixedly connected between the two support rods (29). A connecting rod (30), wherein the two connecting rods (30) are sleeved with a rotating frame (31), the two rotating frames (31) are connected with rollers (32), the two rollers (32) are in sliding contact with the insert block (28), the two connecting rods (30) are sleeved with a torsion spring (33) on the outside, and the inner ends of the two torsion springs (33) are respectively fixedly connected to the front and rear sides of the rotating frame (31), the outer ends of the two torsion springs (33) are respectively fixedly connected to the inner sides of the two support rods (29), and two blocking rods (34) are also fixedly connected between the two support rods (29), and the two blocking rods (34) are respectively in contact with the inner sides of the two rotating frames (31), and the rotating frame (31) and the connecting rod (30) are connected via a bearing.

5. The heat-insulating and dust-proof machine room pressure relief device according to claim 1, characterized in that: The locking assembly comprises a cavity 1, wherein the cavity 1 is opened on the door body (2), a rotating shaft 1 (35) is connected to one side of the cavity 1, one end of the rotating shaft 1 (35) extends into the interior of the housing (4), a rotating disk (36) is fixedly sleeved on the exterior of the rotating shaft 1 (35), the rotating disk (36) is located inside the cavity 1, two clamping rods (37) are slidably embedded on the door body (2), the inner ends of the two clamping rods (37) are both located inside the cavity 1, the inner ends of the two clamping rods (37) are both embedded with a convex rod 1 (38), two convex rods 2 (39) are fixedly embedded on the rotating disk (36), the two convex rods 1 (38) are respectively connected to the two convex rods 2 (39) with a pull rod (40), the pull rod (40) is connected to the convex rod 1 (38) and the convex rod 2 (39) via a bearing, and the rotating shaft 1 (35) is connected to the housing (4) and the door body (2) via a bearing.

6. A heat-insulating and dust-proof machine room pressure relief device according to claim 1, characterized in that: The auxiliary component comprises a fixing rod (41), the fixing rod (41) being fixedly connected to an inner wall of one side of the housing (4), a second rotating shaft (42) being movably sleeved on the outside of the fixing rod (41), the second rotating shaft (42) passing through the other side of the housing (4) and being in movably contact with the second rotating shaft (42), a knob (43) being fixedly connected to one end of the second rotating shaft (42), sleeves (44) being fixedly connected to the inner walls of both sides of the housing (4), the two sleeves (44) being movably sleeved on the outside of the second rotating shaft (42), a third rotating shaft (45) being connected to the inner wall of the other side of the housing (4), the third rotating shaft (43) being fixedly connected to the inner walls of both sides of the housing (4), the two sleeves (44) being movably sleeved on the outside of the second rotating shaft (42), 5) is fixedly connected to one end of the threaded rod (21), the rotating shaft 3 (45) is externally sleeved with a gear 1 (46), the front side of the gear 1 (46) is provided with a gear 2 (47) meshingly connected thereto, the gear 2 (47) is sleeved on the outside of one of the sleeves (44) and connected thereto via a bearing, the outside of the other sleeve (44) is sleeved with a gear 3 (48) and the gear 3 (48) is connected thereto via a bearing, the front side of the gear 3 (48) is provided with a gear 4 (49) meshingly connected thereto, the gear 4 (49) is fixedly sleeved on the outside of the rotating shaft 1 (35).

7. A heat-insulating and dust-proof machine room pressure relief device according to claim 6, characterized in that: The second rotating shaft (42) is fixedly sleeved with a circular ring (50), and two first plug rods (51) are fixedly embedded on the circular ring (50). The second gear (47) and the third gear (48) are each provided with two through holes (52), and the four ends of the two first plug rods (51) are respectively aligned with the four through holes (52). The inner walls of both sides of the outer shell (4) are fixedly connected with two hollow shells (53), and the four hollow shells (53) are each slidably provided with second plug rods (54). The four second plug rods (54) are 4) respectively penetrate through four through holes (52) and are in sliding contact with the four hollow shells (53), springs (55) are provided inside the four hollow shells (53), the inner ends of the four springs (55) are respectively fixedly connected to the outer ends of the four second insertion rods (54), the outer ends of the four springs (55) are fixedly connected to the inner wall of the shell (4), the front side of the second rotating shaft (42) is fixedly connected to an indicating rod (56), the other side of the shell (4) is fixedly connected to an indicating block (57), and the third rotating shaft (45) is connected to the shell (4) via a bearing.

8. The heat-insulating and dust-proof machine room pressure relief device according to claim 1, characterized in that: A handle (58) is fixedly connected to one side of the door body (2).

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