Three-layer pressure seal head

Abstract

The utility model discloses a three-layer type pressure end socket which comprises an end socket body. A first sealing plate is arranged on a cover body part of the sealing head body, and a second sealing plate and a third sealing plate are sequentially arranged in the sealing head body; a plurality of evenly-distributed through holes are formed in the second sealing plate, pressing rods corresponding to the through holes in position are arranged on the side walls, corresponding to the second sealing plate, of the first sealing plate and the third sealing plate, and the pressing rods extend into the through holes from the two ends of the through holes. According to the pressure seal head, the first seal plate, the second seal plate and the third seal plate are arranged, the pressure resistance of the whole pressure seal head is improved through the three seal plates, the first seal plate is used as a cover body, the second seal plate and the third seal plate are arranged in the seal head for use, the structure is reasonable, and the pressure resistance is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the head of pressure vessel, specifically to a three -layer formula pressure head. BACKGROUND

[0002] In prior art, pressure head is usually used to cover pressure vessel, so that pressure vessel can have better sealing performance and pressure resistance performance, there are many kinds of mechanism design of pressure head in prior art, and most of pressure heads have good pressure resistance performance.

[0003] For example: the disc -shaped pressure vessel head of the utility model discloses a disc -shaped pressure vessel head, the lower part of the head is surrounded by a straight edge around the disc -shaped mouth. The upper part of the utility model is disc -shaped, which is mainly used to reduce the local stress generated by shape mutation at the connection of the head and its vicinity. The lower part of the head of the utility model is surrounded by a straight edge around the disc -shaped mouth, which is to prevent the superposition of thermal stress and edge stress.

[0004] For example: the disc -shaped pressure vessel head of the utility model discloses a disc -shaped pressure vessel head, the lower part of the head is surrounded by a straight edge around the disc -shaped mouth. The upper part of the utility model is disc -shaped, which is mainly used to reduce the local stress generated by shape mutation at the connection of the head and its vicinity. The lower part of the head of the utility model is surrounded by a straight edge around the disc -shaped mouth, which is to prevent the superposition of thermal stress and edge stress.

[0005] However, the structure of the pressure head in the above technical scheme is usually only provided with one layer of pressure -resistant structure, which usually only relies on the sealing plate on the pressure head to realize the pressure -resistant function, and the design of the single -layer pressure head lacks the pressure -resistant and pressure -resistant capacity, which cannot effectively protect the pressure vessel.

[0006] Therefore, in order to solve the above -mentioned problems, a three -layer pressure head with reasonable structure and effective compression function is needed. Utility model content

[0007] The utility model aims at the deficiency of prior art, provides a three -layer formula pressure head, and its technical scheme is as follows:

[0008] A three -layer formula pressure head, including the head body, the cover part of the head body is provided with first sealing plate, and the second sealing plate and third sealing plate are sequentially arranged in the head body, a plurality of uniformly distributed through -holes are arranged on the second sealing plate, and the corresponding side wall of the first sealing plate and third sealing plate and the second sealing plate is provided with the pressure rod corresponding to the position of the through -hole, and the pressure rod extends into the through -hole from the both ends of the through -hole.

[0009] And the first sealing plate and the second sealing plate are correspondingly installed with compression springs, the first sealing plate lifts the second sealing plate through the compression spring, the second sealing plate lifts the third sealing plate through the compression spring, and the compression rods at two ends in the same through hole do not correspondingly contact in the original state;

[0010] When the third sealing plate is pressed, the third sealing plate extrudes the compression spring, so that the third sealing plate is correspondingly pressed on the second sealing plate, at this time, the compression rod on the third sealing plate moves in the through hole, and the compression rods in the same through hole do not contact; when the pressure continues, the third sealing plate and the second sealing plate are correspondingly moved inwards to continue extruding the compression spring, so that the compression rods in the same through hole correspondingly contact.

[0011] Further, the compression springs between the first sealing plate and the second sealing plate and between the second sealing plate and the third sealing plate are correspondingly sleeved on the outside of the compression rods, and the second sealing plate and the third sealing plate are integrally supported.

[0012] Further, the through holes on the second sealing plate are uniformly provided with three intervals; and the positions of the compression rods on the first sealing plate and the second sealing plate are correspondingly arranged.

[0013] Further, the first sealing plate is further provided with a threaded sleeve, a threaded rod is correspondingly installed in the threaded sleeve, a bearing member is installed on the second sealing plate, the threaded rod in the threaded sleeve is correspondingly installed in the bearing member, and the position of the second sealing plate in the sealing head body can be correspondingly adjusted through cooperation of the threaded rod and the bearing member.

[0014] Further, the side wall of the second sealing plate is further provided with a limiting block protruding outward, and the inner wall of the sealing head body is provided with a limiting groove corresponding in position to the limiting block; the limiting block is correspondingly embedded in the limiting groove, so that the second sealing plate can only move up and down,

[0015] Further, the side wall of the third sealing plate is also provided with a limiting block, and the inner wall of the sealing head body is also provided with a limiting groove corresponding in position, so that the third sealing plate can only move up and down.

[0016] Further, the thickness of the second sealing plate is consistent with the thickness of the first sealing plate, and the thickness of the third sealing plate is half of the thickness of the second sealing plate.

[0017] Beneficial effects: the utility model has the following beneficial effects:

[0018] 1) The device is provided with first sealing plate, second sealing plate and third sealing plate three layers of sealing plate, and the compression resistance of the whole compression head is increased through the three layers of sealing plate, the first sealing plate is used as a cover, the second sealing plate and the third sealing plate are used in the sealing head, the structure is reasonable and the compression resistance is effectively increased;

[0019] 2) The third sealing plate and the second sealing plate and the second sealing plate and the first sealing plate in the device are correspondingly provided with compression springs, and the compression enhancement between the three sealing plates is realized through the compression springs, and the structure is reasonable;

[0020] 3) The device further comprises a through hole arranged on the second sealing plate, and corresponding pressure rods arranged on the first sealing plate and the third sealing plate, so that the compression capacity can be further increased through the design of the pressure rods after the compression capacity of the compression springs is realized, and the structure is ingenious;

[0021] 4) The position of the second sealing plate can be changed to a fixed structure through the structural design of the threaded sleeve and the threaded rod, so that the position of the second sealing plate can be adjusted and fixed, and the structure of the second sealing plate is reasonable. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 It is a through hole structure diagram in the utility model;

[0024] Figure 3 It is a moving position diagram of the third sealing plate under pressure;

[0025] Figure 4 It is Figure 2 A-A sectional view in the utility model;

[0026] Figure 5 It is Figure 3 B-B sectional view in the utility model;

[0027] Figure 6 It is a threaded rod installation diagram in the utility model;

[0028] Among them, the sealing head body 1; The first sealing plate 101; The second sealing plate 102; The third sealing plate 103; The through hole 104; The pressure rod 105; The compression spring 106; The threaded sleeve 107; The threaded rod 108; The bearing part 109; The limiting block 110; The limiting groove 111. DETAILED DESCRIPTION

[0029] The utility model will be further illustrated in combination with the drawings and specific embodiments, and the embodiments are implemented on the premise of the technical scheme of the utility model, and it should be understood that these embodiments are only used to illustrate the utility model and not used to limit the scope of the utility model.

[0030] As Figure 1 And Figure 2As shown in the figure, a three-layer pressure seal head comprises a seal head body 1; the cover part of the seal head body 1 is provided as a first seal plate 101, and the seal head body 1 further sequentially comprises a second seal plate 102 and a third seal plate 103; the second seal plate 102 is provided with a plurality of uniformly distributed through holes 104, and the first seal plate 101 and the third seal plate 103 are provided with pressure rods 105 corresponding to the positions of the through holes 104 at the corresponding sidewalls of the second seal plate 102, and the pressure rods 105 extend into the through holes 104 from the two end positions of the through holes 104;

[0031] The first seal plate 101 and the second seal plate 102 and the third seal plate 103 and the second seal plate 102 are both provided with compression springs 106, the first seal plate 101 lifts the second seal plate 102 through the compression springs 106, and the second seal plate 102 lifts the third seal plate 103 through the compression springs 106, and the pressure rods 105 at the two ends in the same through hole 104 do not correspondingly contact in the original state;

[0032] As shown in the figure, Figure 3 when the third seal plate 103 is subjected to pressure, the third seal plate 103 extrudes the compression springs 106, so that the third seal plate 103 is pressed on the second seal plate 102, at this time, the pressure rod 105 on the third seal plate 103 moves in the through hole 104, and the pressure rods 105 in the same through hole 104 do not contact; and when the pressure continues, the third seal plate 103 and the second seal plate 102 are both moved inwards to continue extruding the compression springs 106, so that the pressure rods 105 in the same through hole 104 correspondingly contact.

[0033] The compression springs 106 between the first seal plate 101 and the second seal plate 102 and between the second seal plate 102 and the third seal plate 103 are all correspondingly sleeved outside the pressure rods 105, and correspondingly support the second seal plate 102 and the third seal plate 103 as a whole.

[0034] As shown in the figure, Figure 4 and Figure 5 the through holes 104 on the second seal plate 102 are provided with three intervals; the positions of the pressure rods 105 on the first seal plate 101 and the second seal plate 102 correspondingly.

[0035] As shown in the figure, Figure 6 the first seal plate 101 is further provided with a threaded sleeve 107, the threaded sleeve 107 is further correspondingly provided with a threaded rod 108, and the second seal plate 102 is further provided with a bearing 109, the threaded rod 108 in the threaded sleeve 107 is correspondingly installed in the bearing 109, and the position of the second seal plate 102 in the seal head body 1 can be correspondingly adjusted through the cooperation of the threaded rod 108 and the bearing 109.

[0036] The side wall of the second sealing plate 102 is also provided with a limiting block 110 protruding outwardly, and the inner wall of the sealing head body 1 is provided with a limiting groove 111 corresponding to the position of the limiting block 110; the limiting block 110 is correspondingly embedded in the limiting groove 111, so that the second sealing plate 102 can only move up and down,

[0037] The side wall of the third sealing plate 103 is also provided with a limiting block 110, and the inner wall of the sealing head body 1 is also provided with a limiting groove 111 corresponding in position, so that the third sealing plate 103 can only move up and down.

[0038] The thickness of the second sealing plate 102 is consistent with the thickness of the first sealing plate 101; and the thickness of the third sealing plate 103 is set to be half of the thickness of the second sealing plate 102.

[0039] The specific working process of the three-layer pressure sealing head of the device is as follows: in the device, the inside of the pressure sealing head is provided with a second sealing plate and a third sealing plate in addition to the cover of the first sealing plate; as shown in the drawings, when subjected to the pressure inside the pressure container, the third sealing plate is correspondingly compressed, and after the third sealing plate is compressed, the compression spring between the third sealing plate and the second sealing plate provides resistance to compression, and at the same time, the compression rod on the third sealing plate moves correspondingly in the through hole, but even if the third sealing plate is compressed to the limit position, the two compression rods at both ends do not contact. Figure 3

[0040] When the third sealing plate is compressed to the limit position, the third sealing plate will be correspondingly pressed on the second sealing plate, pushing the second sealing plate to move inwardly, at which time the compression spring on the second sealing plate provides resistance to compression, until the second sealing plate and the third sealing plate are compressed together, at which time the displacement of the second sealing plate causes the two compression rods in the through hole to be correspondingly compressed together, so that the third sealing plate on the outside is pressed on the first sealing plate, and the pressure inside the pressure container is borne by the first sealing plate, finally realizing the compression process of the three-layer sealing plate, and the structure design is very ingenious and reasonable.

[0041] In addition, the device is also provided with a structure of a threaded sleeve and a threaded rod to fix the position of the second sealing plate; the device is provided with a threaded sleeve on the first sealing plate, and a threaded rod is installed in the threaded sleeve, and a bearing piece corresponding to the position of the threaded rod is arranged on the second sealing plate, and the threaded rod is correspondingly installed on the bearing piece, so that the position of the second sealing plate can be limited by the threaded rod, and the position of the second sealing plate is fixed, which can effectively adjust the position of the second sealing plate, and the structure is reasonable.

[0042] ​In addition, this device also provides limit blocks on the side walls of the second and third sealing plates, and limit grooves corresponding to the positions of the limit blocks are provided on the inner wall of the head body. The second and third sealing plates are displaced in the up and down directions through the cooperation of the limit blocks and the limit grooves, and the up and down movements of the second and third sealing plates are smoother and more reasonable.

[0043] The above specific implementation method is only a preferred embodiment of the present invention and is not intended to limit the implementation and scope of the claims of the present invention. All equivalent changes and modifications made based on the content of the patent protection scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A three-layer pressure head, characterized by: The invention comprises a head body (1); the cover portion of the head body (1) is provided as a first sealing plate (101), and a second sealing plate (102) and a third sealing plate (103) are sequentially provided in the head body (1); the second sealing plate (102) is provided with a plurality of evenly distributed through holes (104), and the side walls of the first sealing plate (101) and the third sealing plate (103) corresponding to the second sealing plate (102) are provided with pressure rods (105) corresponding to the positions of the through holes (104), and the pressure rods (105) extend into the through holes (104) from both ends of the through holes (104); Furthermore, anti-compression springs (106) are correspondingly installed between the first sealing plate (101) and the second sealing plate (102), and between the third sealing plate (103) and the second sealing plate (102). The first sealing plate (101) lifts up the second sealing plate (102) through the anti-compression spring (106), and the second sealing plate (102) lifts up the third sealing plate (103) through the anti-compression spring (106). In the original state, the pressure rods (105) at both ends of the same through hole (104) do not contact each other. When the third sealing plate (103) is subjected to pressure, the third sealing plate (103) squeezes the anti-compression spring (106), so that the third sealing plate (103) is pressed on the second sealing plate (102) accordingly. At this time, the pressure rod (105) on the third sealing plate (103) moves in the through hole (104), and the pressure rods (105) in the same through hole (104) do not contact each other; and when the pressure continues to be applied, the third sealing plate (103) and the second sealing plate (102) both move inwards accordingly and continue to squeeze the anti-compression spring (106), so that the pressure rods (105) in the same through hole (104) contact each other accordingly.

2. A three-layer pressure head according to claim 1, characterized in that: The compression springs (106) between the first sealing plate (101) and the second sealing plate (102) and between the second sealing plate (102) and the third sealing plate (103) are respectively mounted on the outside of the pressure rod (105), and respectively support the second sealing plate (102) and the third sealing plate (103) as a whole.

3. The three-layer pressure head according to claim 1 is characterized in that: There are three through holes (104) on the second sealing plate (102) at even intervals; and the positions of the pressure rods (105) on the first sealing plate (101) and the second sealing plate (102) are correspondingly arranged.

4. The three-layer pressure head according to claim 1 is characterized in that: The first sealing plate (101) is further provided with a threaded sleeve (107), and a threaded rod (108) is correspondingly installed in the threaded sleeve (107), and the second sealing plate (102) is further provided with a bearing member (109), and the threaded rod (108) in the threaded sleeve (107) is correspondingly installed on the bearing member (109). The position of the second sealing plate (102) in the sealing head body (1) can be correspondingly adjusted by the cooperation between the threaded rod (108) and the bearing member (109).

5. The three-layer pressure head according to claim 1 is characterized in that: The side wall of the second sealing plate (102) is also provided with a limit block (110) protruding outward; and the inner wall of the head body (1) is provided with a limit groove (111) corresponding to the position of the limit block (110); the limit block (110) is correspondingly embedded in the limit groove (111), so that the second sealing plate (102) can only move up and down.

6. The three-layer pressure head according to claim 5 is characterized in that: The side wall of the third sealing plate (103) is also provided with a limit block (110), and the inner wall of the head body (1) is also provided with a corresponding limit groove (111), so that the third sealing plate (103) can only move up and down.

7. The three-layer pressure head according to claim 1 is characterized in that: The thickness of the second sealing plate (102) is consistent with that of the first sealing plate (101); and the thickness of the third sealing plate (103) is set to be half of the thickness of the second sealing plate (102).

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