High-temperature-resistant and high-pressure-resistant vacuum connector capable of being quickly connected

Abstract

The utility model belongs to the technical field of pressure containers and the technical field of sealing, and particularly relates to a high-temperature-resistant and high-pressure-resistant vacuum connector capable of being quickly connected. Comprising plugs, a male head, a female head, a clamping sleeve and a lever, when the high-temperature-resistant and high-pressure-resistant vacuum quick connector is connected, under the action of lever force, the spherical surface of the male head and the conical surface of the female head extrude each other and generate contact pressure larger than medium pressure, sealing is achieved, meanwhile, the plugs of the male head and the female head bounce off each other after touching each other, and medium airflow passes through.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pressure vessel technical field and sealing technical field, concretely relates to a high temperature and high pressure resistant quick connection type vacuum joint. BACKGROUND

[0002] Vacuum hose is a flexible, thin-walled, transverse corrugated device with telescopic function, with pressure resistance, sealing, corrosion resistance, temperature resistance, impact resistance and vibration and noise reduction functions. The vacuum hose for hot press tank is used for product vacuumizing and vacuum testing.

[0003] Hot press tank can be divided into conventional hot press tank (250℃, 1.2MPa and below) and high temperature and high pressure hot press tank (250℃, 1.2MPa and above) according to temperature and pressure. The vacuum quick connection hose for conventional hot press tank has been realized domestication, but the vacuum quick connection hose for high temperature and high pressure hot press tank is still mainly foreign products, and domestic relevant research is less. In recent years, thermoplastic composite materials are widely used, compared with thermosetting composite materials, thermoplastic composite materials need higher temperature and pressure (such as 450℃, 4MPa) for curing and molding, therefore, the demand for high temperature and high pressure hot press tank is increasing in China. CONTENT OF UTILITY MODEL

[0004] The utility model discloses a high temperature and high pressure resistant quick connection type vacuum joint.

[0005] Technical scheme:

[0006] The application relates to a high-temperature and high-pressure resistant vacuum joint capable of being quickly connected, which comprises a plug 1, a male head 2, a female head 3, a clamping sleeve and a lever 4, wherein a first annular boss is arranged in the middle of the male head 2, the outer side of one end of the male head 2 is a spherical surface, the other end of the male head 2 is connected with a first connecting base, a first axial through hole is arranged in the male head 2, a first plug and a first spring are sequentially arranged in the first axial through hole, one end of the first spring is in contact with the first connecting base, the other end of the first spring is in contact with the first plug, the outer contour of the first plug is the same as the inner contour of the end of the first axial through hole and is used for sealing the first axial through hole, the clamping sleeve is a cylindrical joint, a second annular boss is arranged at one end of the clamping sleeve, and the bottom of the clamping sleeve is open, the female head 3 is arranged in the clamping sleeve, the large end of the female head 3 is matched with the inner wall of the clamping sleeve, the small end of the clamping sleeve is connected with a second connecting base through the opening at the bottom of the clamping sleeve, the inner side of the large end of the female head 3 is a conical surface, a second axial through hole is arranged in the female head 3, a second plug and a second spring are sequentially arranged in the second axial through hole, one end of the second spring is in contact with the second connecting base, the other end of the second spring is in contact with the second plug, the outer contour of the second plug is the same as the inner contour of the end of the second axial through hole and is used for sealing the second axial through hole, a third spring is arranged at the outer side of the female head 3, one end of the third spring is in contact with the large end of the female head 3, and the other end of the third spring is in contact with the bottom of the clamping sleeve, one end of the lever 4 is hinged with the first annular boss, the position close to one end of the lever 4 is hinged with one end of a connecting rod, and the other end of the connecting rod is hinged with the second annular boss of the clamping sleeve.

[0007] Further, the first plug and the second plug are symmetrically arranged.

[0008] Further, the abutting surfaces of the first plug and the second plug are provided with ejection parts, so that the high-temperature and high-pressure resistant vacuum joint capable of being quickly connected is in a conducting state when the male head 2 and the female head 3 are pressed.

[0009] Further, the second connecting base is used for being connected with a vacuum hose.

[0010] Further, the vacuum hose comprises an inner layer and an outer layer, wherein the inner layer is a stainless steel corrugated hose, and the outer layer is coated by a stainless steel woven layer.

[0011] Further, a plurality of sealing grooves are arranged at the end of the vacuum hose, and a sealing ring made of high-temperature resistant fluorine rubber is arranged in the sealing grooves.

[0012] Beneficial effects:

[0013] In view of the problem of the vacuum quick connection hose for high-temperature and high-pressure hot pressing tanks, the application provides the high-temperature and high-pressure resistant vacuum joint capable of being quickly connected.

[0014] 1. The joint is simple and reliable to install, and when the joint is disconnected, the valve core is automatically closed to prevent leakage.

[0015] 2, after the joint is connected, the valve is automatically opened, and the fluid is always kept smooth in a rated working range;

[0016] 3, long service life of the product, ensure that it is used under high temperature and high pressure conditions for 1 year;

[0017] 4, the female socket and the male plug of the vacuum quick connector are connected by a ball lock mechanism, the ball lock mechanism is manufactured with high precision, and the product quality of the vacuum connector is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of a high-temperature and high-pressure resistant quick connection type vacuum hose joint according to the utility model embodiment; DETAILED DESCRIPTION

[0019] The utility model discloses a high-temperature and high-pressure resistant quick connection type vacuum hose joint. It is used for the vacuum extraction and measurement of hot press tank products, especially for the connection between the vacuum bag and the vacuum extraction and measurement device in the high-temperature and high-pressure composite material hot press tank forming process. The utility model relates to the technical field of pressure vessels and the technical field of sealing.

[0020] For example, Figure 1 A high-temperature and high-pressure resistant quick connection type vacuum joint, comprising: a plug 1, a male head 2, a female head 3, a sleeve, and a lever 4, wherein the male head 2 is provided with a first annular boss in the middle, the outer side of one end of the male head 2 is spherical, and the other end of the male head 2 is connected with a first connecting seat; the male head 2 is provided with a first axial through hole inside, and a first plug and a first spring are sequentially arranged in the first axial through hole; one end of the first spring is in contact with the first connecting seat, and the other end of the first spring is in contact with the first plug; the outer contour of the first plug is the same as the inner contour of the end part of the first axial through hole, and is used for sealing the first axial through hole; the sleeve is a cylindrical connector, one end of the sleeve is provided with a second annular boss, and the bottom of the sleeve is open; the female head 3 is arranged in the sleeve, the large end of the female head 3 is matched with the inner wall of the sleeve, and the small end of the sleeve is connected with a second connecting seat through the opening in the bottom of the sleeve; the inner side of the large end of the female head 3 is a conical surface, the female head 3 is provided with a second axial through hole inside, and a second plug and a second spring are sequentially arranged in the second axial through hole; one end of the second spring is in contact with the second connecting seat, and the other end of the second spring is in contact with the second plug; the outer contour of the second plug is the same as the inner contour of the end part of the second axial through hole, and is used for sealing the second axial through hole; the female head 3 is provided with a third spring on the outer side, one end of the third spring is in contact with the large end of the female head 3, and the other end of the third spring is in contact with the bottom of the sleeve; one end of the lever 4 is hinged with the first annular boss, the position close to one end of the lever 4 is hinged with one end of a connecting rod, and the other end of the connecting rod is hinged with the second annular boss of the sleeve.

[0021] Further, the first plug and the second plug are symmetrically installed.

[0022] Further, the abutting surfaces of the first plug and the second plug are provided with ejection portions, for when the male head 2 and the female head 3 are pressed, the high-temperature and high-pressure resistant quick connection type vacuum connector is in a conducting state.

[0023] Further, the second connecting seat is used for connecting with a vacuum hose.

[0024] Further, the vacuum hose comprises an inner layer and an outer layer, wherein the inner layer is a stainless steel corrugated hose, and the outer layer is coated by a stainless steel woven layer. The vacuum hose is made of stainless steel.

[0025] Further, the end of the vacuum hose is provided with a plurality of sealing grooves, and a sealing ring made of high-temperature resistant fluorine rubber is installed in the sealing grooves.

[0026] Working principle:

[0027] When the high-temperature and high-pressure resistant vacuum quick connector is connected, under the action of the lever force, the spherical surface of the male head 2 and the conical surface of the female head 3 are extruded and a contact pressure greater than the medium pressure is generated, so that sealing is realized, and meanwhile the plugs of the male head and the female head are touched and then bounced away from each other, so that the medium gas flow passes through.

[0028] The product in the tank and the vacuum equipment outside the tank are connected through the vacuum quick connector and the vacuum hose. The structure is simple and reliable, when the connector is disconnected, the valve core is automatically closed to prevent leakage; when the connector is connected, the valve is automatically opened, and in the rated working range, the fluid is always smooth; the female socket and the male plug of the vacuum quick connector are connected by a ball lock mechanism, the ball lock mechanism is manufactured with high precision, and the quality of the vacuum connector is ensured.

[0029] The utility model solves the technical difficulties of the quick connection structure, sealing structure and sealing element material of the vacuum quick connector, and the inner core structure and outer coating material of the vacuum hose, can be used for the supply of the vacuum quick connection hose of the hot press tank equipment and the sales of spare parts, is favorable for reducing the overall cost of the hot press tank, realizes the quality controllable of the vacuum quick connection hose.

Claims

1. A high-temperature and high-pressure resistant vacuum joint capable of quick connection, characterized in that, The utility model relates to a kind of vacuum connector, including: Plug (1), male head (2), female head (3), sleeve, lever (4), wherein, First annular boss is arranged in the middle of male head (2), the outer side of one end of male head (2) is spherical, the other end of male head (2) is connected with first connecting seat;Male head (2) is provided with first axial through hole inside, first plug and first spring are sequentially arranged in first axial through hole;First spring one end is in contact with first connecting seat, and the other end of first spring is in contact with first plug;The outer contour of first plug is same with the inner contour of first axial through hole end portion for sealing first axial through hole; Sleeve is cylindrical joint, second annular boss is arranged in one end of sleeve, and the bottom of sleeve is opened; Female head (3) is arranged in sleeve, and the big end of female head (3) is matched with the inner wall of sleeve, and the small end of sleeve is connected with second connecting seat through the bottom opening of sleeve;The inner side of big end of female head (3) is conical surface, and second axial through hole is arranged in female head (3), and second plug and second spring are sequentially arranged in second axial through hole;Second spring one end is in contact with second connecting seat, and the other end of second spring is in contact with second plug;The outer contour of second plug is same with the inner contour of second axial through hole end portion for sealing second axial through hole; Third spring is arranged on the outer side of female head (3), and the big end of female head (3) is in contact with the other end of third spring; Lever (4) one end is hinged with first annular boss, and the position close to one end of lever (4) is hinged with one end of connecting rod, and the other end of connecting rod is hinged with second annular boss of sleeve.

2. The high temperature and high pressure resistant vacuum joint according to claim 1, wherein, First plug and second plug are symmetrically installed.

3. The high temperature and high pressure resistant vacuum joint according to claim 1, wherein, The abutting surface of first plug and second plug is provided with ejection part, for in the case of female head (3) and male head (2) compression, high temperature and high pressure resistant quick connection type vacuum connector is in conducting state.

4. The high temperature and high pressure resistant vacuum joint according to claim 1, wherein, Second connecting seat is used for connecting with vacuum hose.

5. The high temperature and high pressure resistant vacuum joint according to claim 1, wherein, Vacuum hose includes inner layer and outer layer, wherein, inner layer adopts stainless steel corrugated hose, and outer layer adopts stainless steel braided layer for cladding.

6. The high temperature and high pressure resistant vacuum joint according to claim 1, wherein, Vacuum hose end is provided with a plurality of sealing grooves, and sealing ring of high temperature resistant fluorine rubber material is installed in sealing groove.

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