Steam insulation device

Abstract

The present invention discloses a steam insulation device. The existing steam insulation device has poor sealing performance and can only seal under positive pressure, but cannot seal under negative pressure, thus causing a certain waste of resources. The present invention rotates the top of the pot cover to drive the locking pin to move horizontally into the annular locking pin receiving groove on the pot body, so that the inner pot cover squeezes the sealing ring to deform, thereby completing the sealing and locking of the pot body; the top of the pot cover is rotated in the opposite direction, and the locking pin moves inwardly in the horizontal direction and withdraws from the annular locking pin receiving groove, thereby completing the unlocking of the steam insulation device. The present invention achieves sealing through a mechanical structure, and can ensure a good sealing effect when the inside of the pot body is under positive or negative pressure; the steam in the steam insulation device can only flow through the steam inlet valve and the steam outlet valve, thereby improving the effective utilization rate of resources.

Description

Technical Field

[0001] The invention belongs to the technical field of heat preservation devices, and in particular relates to a steam heat preservation device. Background Art

[0002] In the process of rapid development of human society, the over-exploitation of earth resources by countries around the world has caused a serious shortage of available resources. In order to maintain the sustainable development of mankind, the recycling of resources has become the focus of people's attention.

[0003] Using steam to keep objects warm can make full use of the heat contained in the steam and improve the effective utilization rate of resources. However, the existing steam insulation devices have poor sealing performance and can only be sealed under positive pressure but not under negative pressure, which causes a certain waste of resources. Therefore, it is urgent to design a steam insulation device that can be sealed under both positive and negative pressure conditions. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, the present invention provides a steam insulation device with excellent sealing performance and improved effective utilization of resources.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A steam insulation device is provided with a steam inlet valve, a steam outlet valve and a safety valve, and also includes a pot cover top, wherein the pot cover top is a rotating body, and a swivel connecting piece is fixedly connected to the center position;

[0007] The pot cover swivel is a rotating body, on which a coaxial cylindrical surface and a curved surface are arranged, the cylindrical surface is arranged on the inner side of the curved surface; the outer surface of the cylindrical surface is arranged with an external thread, and a bracket receiving groove is arranged at the center; the curved surface is an inverted eight-shaped shape; the swivel connecting piece is arranged in the bracket receiving groove on the pot cover swivel, and is movably connected with the pot cover swivel;

[0008] The pot cover pressing plate is a stepped cylindrical shape with a hollow interior, and includes a shaft section 1 and a shaft section 2; an internal threaded hole is axially arranged at the center position of the shaft section 1; a plurality of rectangular through holes are arranged on the shaft section 2, and a pair of edges of the rectangular through holes are arranged in the radial direction; a plurality of circular through holes and a circular through hole are arranged on the shaft section 2; a locking pin sleeve is fixedly connected to the shaft section 2, and the axial direction of the locking pin sleeve is consistent with the radial direction of the shaft section 2, and is arranged on both sides of the rectangular through hole;

[0009] The pot cover rotating shaft is arranged inside the pot cover pressing plate and is threadedly connected via an internal thread hole and an external thread;

[0010] The outer pot cover is a rotating body with a hollow interior, with two openings at both ends, and one end is provided with a spring fixing boss and a stepped hole; the pot cover pressing plate is arranged inside the outer pot cover; the outer pot cover is rotatably connected to the pot cover top through a buckle structure;

[0011] The pressure plate spring is a compression spring, which is coaxially movably connected with the spring fixing boss on the outer pot cover, and the other end face of the pressure plate spring coincides with the second end face of the shaft segment; the spring fixing boss on the outer pot cover is arranged inside a plurality of circular through holes on the second shaft segment;

[0012] The inner pot cover is a hollow rotating body with one end open and the other end closed, with reinforcing ribs arranged at the bottom, locking pin holes arranged on the side walls, and support columns arranged on the inner bottom surface; a sealing ring pressing groove is arranged on the outer bottom surface; the inner pot cover is rotatably connected with the outer pot cover through a snap-fit ​​structure; the support column on the inner pot cover passes through the circular through hole on the second shaft segment and is arranged in the stepped hole on the outer pot cover;

[0013] The pot body is a hollow cylinder, and an annular locking pin receiving groove and a shoulder are arranged on the inner wall, and the shoulder is arranged below the annular locking pin receiving groove; the pot body and the inner pot cover are arranged coaxially; the sealing ring is arranged in the sealing ring pressing groove on the outer bottom surface of the inner pot cover, and the bottom surface of the sealing ring contacts the shoulder on the pot body;

[0014] The locking pin is cylindrical in shape, and an annular notch is provided in the middle; the locking pin is arranged in the locking pin sleeve, one end of the locking pin contacts the curved surface on the pot cover rotating shaft, and the other end is arranged in the locking pin hole on the inner pot cover;

[0015] The locking piece is arranged in the annular notch on the locking pin and has an interference fit with the locking pin; the locking piece is arranged between the locking pin sleeves; the locking pin spring is a compression spring and is coaxially movably connected with the locking pin, and the two end surfaces of the locking pin spring are in contact with the locking piece and the end surface of the locking pin sleeve respectively;

[0016] Optimally, the heat insulation board is arranged on the inner bottom surface of the inner pot cover;

[0017] Optimally, the pot lid further comprises two handles, which are semicircular and movably connected to the pot lid top via an axial hole structure.

[0018] Beneficial effects of the present invention:

[0019] The present invention rotates the pot cover top so that the pot cover rotation shaft presses the inner pot cover tightly, thereby causing the sealing ring to be squeezed and deformed to achieve sealing; the present invention achieves sealing through a mechanical structure, and a good sealing effect can be guaranteed when the inside of the pot body is in a positive or negative pressure state; the steam in the steam insulation device can only flow through the steam inlet valve and the steam outlet valve, thereby improving the effective utilization rate of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A top view of the present invention;

[0021] Figure 2 It is the AA cross-sectional view of the present invention;

[0022] Figure 3 Schematic diagram of the pot structure;

[0023] Figure 4 This is a schematic diagram of the pot cover top structure;

[0024] Figure 5 This is a schematic diagram of the pot lid handle structure;

[0025] Figure 6 It is a schematic diagram of the pot cover rotation axis structure;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the pot cover pressing plate;

[0027] Figure 8 This is a cross-sectional view of the pot cover pressure plate;

[0028] Fig. 9 It is a schematic diagram of the structure of the outer pot cover;

[0029] Fig.10 This is a schematic diagram of the inner pot cover structure;

[0030] Fig.11 is a schematic diagram of the locking pin connection structure;

[0031] In the figure, 1-pot cover top, 2-swivel connector, 3-pot cover swivel, 301-cylindrical surface, 302-curved surface, 303-external thread, 304-bracket accommodating groove, 4-pot cover pressure plate, 5-axis segment one, 501-internal thread hole, 6-axis segment two, 601-rectangular through hole, 602-circular through hole, 603-circular through hole, 7-locking pin sleeve, 8-pressure plate spring, 9-pot body, 901-annular locking pin accommodating groove, 902-shoulder, 10-outer pot cover, 1001-spring fixing boss, 1002-step hole, 11-inner pot cover, 1101-locking pin hole, 1102-support column, 1103-sealing ring pressure groove, 12-sealing ring, 13-locking pin, 15-locking sheet, 14-locking pin spring, 16-insulation board, 17-pot cover handle. DETAILED DESCRIPTION

[0032] The present invention is described in detail below in conjunction with specific implementation modes.

[0033] like Figure 1 The top view of the present invention, Figure 2As shown in the AA cross-sectional view of the present invention, the overall shape of the steam insulation device is cylindrical, including a pot cover top 1, the pot cover top 1 is a rotating body, a buckle connection structure is provided, and a pot cover handle connection hole is provided on the outer surface. The structural schematic diagram is shown in FIG. Figure 4 As shown; the lid handle 17 is semicircular and is movably connected to the lid top 1 through an axial hole connection structure, and its structural schematic diagram is shown Figure 5 As shown;

[0034] The swivel connector 2 is in the shape of a T-shaped plate, on which a screw connection hole is provided, and is fixedly connected to the center position of the pot cover top 1 by screws;

[0035] The pot cover swivel 3 is a rotating body, on which a coaxial cylindrical surface 301 and a curved surface 302 are arranged, and the cylindrical surface 301 is arranged on the inner side of the curved surface 302; the outer surface of the cylindrical surface 301 is provided with an external thread 303, and a bracket receiving groove 304 is arranged at the center; the curved surface 302 is an inverted eight-shaped; the swivel connector 2 is arranged in the bracket receiving groove 304 on the pot cover swivel 3, and is movably connected to the pot cover swivel 3. The schematic diagram of the structure of the pot cover swivel 3 is shown in FIG. Figure 6 As shown;

[0036] The pot cover pressing plate 4 is a stepped cylindrical shape with a hollow interior, comprising an axial section 1 5 and an axial section 2 6; an internal threaded hole 501 is axially arranged at the center position of the axial section 1 5; three rectangular through holes 601 are arranged on the axial section 2 6, and a pair of edges of the rectangular through holes 601 are arranged in the radial direction, and the angles between the three rectangular through holes 601 are 120°; three circular through holes 602 and three circular through holes 603 are arranged on the axial section 2 6; the locking pin sleeve 7 is fixedly connected to the axial section 2 6, and the axial direction of the locking pin sleeve 7 is consistent with the radial direction of the axial section 2 6, and is arranged on both sides of the rectangular through hole 601, and its structural schematic diagram is shown as follows Figure 7 , Figure 8 As shown; the pot cover rotation shaft 3 is arranged inside the pot cover pressing plate 4, and is threadedly connected through the internal thread hole 501 and the external thread 303;

[0037] The outer pot cover 10 is a rotating body with a hollow interior, with two openings at both ends, and one end is provided with a spring fixing boss 1001 and a stepped hole 1002. The structural diagram is shown in FIG. Fig. 9 As shown; the pot cover pressing plate 4 is arranged inside the outer pot cover 10; the outer pot cover 10 is rotatably connected to the pot cover top 1 through the top buckle structure;

[0038] The pressure plate spring 8 is a compression spring, which is coaxially movably connected with the spring fixing boss 1001 on the outer pot cover 10, and the other end face of the pressure plate spring 8 coincides with the end face of the second shaft segment 6; the spring fixing boss 1001 on the outer pot cover 10 is arranged inside the circular through hole 602 on the second shaft segment 6;

[0039] The inner pot cover 11 is a hollow rotating body with one end open and the other end closed. A reinforcing rib is provided at the bottom, a locking pin hole 1101 is provided on the side wall, a support column 1102 is provided on the inner bottom surface, and a sealing ring pressing groove 1103 is provided on the outer bottom surface. The inner pot cover 11 is rotatably connected to the outer pot cover 10 through a top buckle structure. The support column 1102 on the inner pot cover 11

[0040] The circular through hole 603 on the shaft section 2 6 is disposed in the stepped hole 1002 on the outer pot cover 10; the schematic diagram of the inner pot cover structure is shown in FIG. Fig.10 As shown;

[0041] The pot body 9 is a hollow cylinder, and an annular locking pin receiving groove 901 and a shoulder 902 are provided on the inner wall. The shoulder 902 is provided below the annular locking pin receiving groove 901. In order to reduce the weight of the device itself, the side wall of the pot body 9 is designed to be a hollow structure. The structural diagram is shown in FIG. Figure 3 As shown; the pot body 9 is coaxially arranged with the inner pot cover 11; the sealing ring 12 is arranged in the sealing ring pressing groove 1103 on the outer bottom surface of the inner pot cover 11, and the bottom surface of the sealing ring 12 contacts the shoulder 902 on the pot body 9; the bottom of the pot body 9 is provided with a steam inlet valve, a steam outlet valve and a safety valve;

[0042] The locking pin 13 is cylindrical in shape, and an annular notch is provided in the middle; the locking pin 13 is arranged in the locking pin sleeve 7, one end of the locking pin 13 contacts the curved surface 302 on the pot cover rotating shaft 3, and the other end is arranged in the locking pin hole 1101 on the inner pot cover 11;

[0043] The locking piece 15 is arranged in the annular notch on the locking pin 13 and has an interference fit with the locking pin 13; the locking piece 15 is arranged between the locking pin sleeves 7; the locking pin spring 14 is a compression spring, which is coaxially movably connected with the locking pin 13, and the two end surfaces of the locking pin spring 14 are respectively in contact with the locking piece 15 and the end surface of the locking pin sleeve 7; in order to increase the heat preservation function of the present invention, an insulation board 16 is arranged on the inner bottom surface of the inner pot cover 11, so that heat and cold can be kept at the same time.

[0044] The working principle of the present invention is as follows:

[0045] When the pot cover top is rotated clockwise, the pot cover swivel also rotates clockwise under the drive of the swivel connector fixedly connected to the pot cover top; the pot cover swivel is threadedly matched with the pot cover pressure plate, the pressure plate spring is in a compressed state, and the pot cover pressure plate is fixed, so the pot cover swivel moves downward at the same time, driving the locking pin to move horizontally into the annular locking pin accommodating groove on the pot body; after the pot cover swivel continues to move downward and contacts the heat insulation plate, the pot cover pressure plate moves up, and the locking pin contacts the top surface of the annular locking pin accommodating groove and is locked; the pot cover top is continued to be rotated, the pot cover swivel presses the heat insulation plate, and the sealing ring is squeezed and deformed, completing the sealing and locking of the pot body;

[0046] When the pot cover top is rotated counterclockwise, the pot cover rotation axis also rotates counterclockwise, and the pot cover rotation axis moves upward and separates from the insulation board; under the elastic force of the locking pin spring, the locking pin moves inward laterally and withdraws from the annular locking pin receiving groove, thereby completing the unlocking of the steam insulation device.

[0047] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The content of the present invention is not limited to the embodiments listed, and any equivalent changes made to the technical solution of the present invention by ordinary technicians in this field after reading the description of the present invention are covered by the claims of the present invention.

Claims

1. A steam insulation device, provided with a steam inlet valve, a steam outlet valve and a safety valve, characterized in that: The pot cover top (1) is a rotating body, and a rotating shaft connecting member (2) is fixedly connected at the center position; The pot cover swivel (3) is a rotating body, on which a coaxial cylindrical surface (301) and a curved surface (302) are arranged, and the cylindrical surface (301) is arranged on the inner side of the curved surface (302); the outer surface of the cylindrical surface (301) is provided with an external thread (303), and a bracket receiving groove (304) is provided at the center; the curved surface (302) is in an inverted eight-shaped shape; the swivel connecting member (2) is arranged in the bracket receiving groove (304) on the pot cover swivel (3), and is movably connected to the pot cover swivel (3); The pot cover pressing plate (4) is in the shape of a stepped cylinder with a hollow interior, and comprises an axial section 1 (5) and an axial section 2 (6); an internal threaded hole (501) is axially arranged at the center position of the axial section 1 (5); a plurality of rectangular through holes (601) are arranged on the axial section 2 (6), and a pair of edges of the rectangular through holes (601) are arranged in the radial direction; a plurality of circular through holes (602) and a circular through hole (603) are arranged on the axial section 2 (6); a locking pin sleeve (7) is fixedly connected to the axial section 2 (6), and the axial direction of the locking pin sleeve (7) is consistent with the radial direction of the axial section 2 (6), and is arranged on both sides of the rectangular through hole (601); The pot cover rotating shaft (3) is arranged inside the pot cover pressing plate (4) and is threadedly connected via an internal thread hole (501) and an external thread (303); The outer pot cover (10) is a rotating body with a hollow interior, with openings at both ends, and one end is provided with a spring fixing boss (1001) and a stepped hole (1002); the pot cover pressing plate (4) is arranged inside the outer pot cover (10); the outer pot cover (10) is rotatably connected to the pot cover top (1) via a snap-fit ​​structure; The pressure plate spring (8) is a compression spring, which is coaxially movably connected to the spring fixing boss (1001) on the outer pot cover (10), and the other end face of the pressure plate spring (8) coincides with the end face of the second shaft segment (6); the spring fixing boss (1001) on the outer pot cover (10) is arranged inside a plurality of circular through holes (602) on the second shaft segment (6); The inner pot cover (11) is a rotating body with a hollow interior, one end of which is open and the other end of which is closed, a reinforcing rib is arranged at the bottom, a locking pin hole (1101) is arranged on the side wall, and a support column (1102) is arranged on the inner bottom surface; a sealing ring pressing groove (1103) is arranged on the outer bottom surface; the inner pot cover (11) is rotatably connected to the outer pot cover (10) through a snap-fit ​​structure; the support column (1102) on the inner pot cover (11) passes through the circular through hole (603) on the shaft section 2 (6) and is arranged in the stepped hole (1002) on the outer pot cover (10); The pot body (9) is a hollow cylinder, and an annular locking pin receiving groove (901) and a shoulder (902) are provided on the inner wall, and the shoulder (902) is arranged below the annular locking pin receiving groove (901); the pot body (9) and the inner pot cover (11) are arranged coaxially; the sealing ring (12) is arranged in a sealing ring pressing groove (1103) on the outer bottom surface of the inner pot cover (11), and the bottom surface of the sealing ring (12) contacts the shoulder (902) on the pot body (9); The locking pin (13) is cylindrical in shape and is provided with an annular notch in the middle; the locking pin (13) is arranged in the locking pin sleeve (7), one end of the locking pin (13) contacts the curved surface (302) on the pot cover rotating shaft (3), and the other end is arranged in the locking pin hole (1101) on the inner pot cover (11); The locking piece (15) is arranged in the annular notch on the locking pin (13) and is interference fit with the locking pin (13); the locking piece (15) is arranged between the locking pin sleeves (7); the locking pin spring (14) is a compression spring and is coaxially movably connected with the locking pin (13), and the two end surfaces of the locking pin spring (14) are respectively in contact with the locking piece (15) and the end surface of the locking pin sleeve (7).

2. A steam insulation device according to claim 1, characterized in that: The heat insulation board (16) is arranged on the inner bottom surface of the inner pot cover (11).

3. A steam insulation device according to claim 2, characterized in that: It comprises two pot cover handles (17), wherein the pot cover handles (17) are semicircular and are movably connected to the pot cover top (1) via an axial hole structure.

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