A self-locking capsule filter element with positioning installation

Abstract

The present invention discloses a self-locking capsule filter element for positioning and installation, including a capsule inner filter element, an outer shell, a valve plate, a matching male head, a button, an elastic member and a pressure relief device; the characteristic is that a capsule inner filter element is installed in the outer shell; a matching male head is installed on the outer shell; a valve plate and an elastic member are arranged in sequence at one end of the matching male head; one end of the elastic member is connected to the valve plate, and the other end is connected to the water inlet connected to the outer shell; a pressure relief device is installed on the outer shell; the outer shell includes a capsule inlet shell and a capsule outlet shell; the capsule inlet shell and the capsule outlet shell are fixedly connected by welding; the pressure relief device includes a vent gland, a pressure relief spring and a pressure relief valve plate; the vent gland is detachably connected to the capsule inlet shell. The present invention has a simple structure, is easy to use, can be applied to a variety of connection methods, is easy to install, and is more secure for the safety of the filter element, the equipment and the equipment operators.

Description

Technical Field

[0001] The invention relates to the technical field of filter elements, in particular to a positioning and installing self-locking capsule filter element. Background Art

[0002] The capsule filter element is an integrated design structure with its own shell, which is convenient for users to replace. The current market is dominated by threaded and plug-in joint structures. The single connection method requires corresponding connection during assembly and replacement; and the integrated structure has high maintenance costs; the existing exhaust device will exhaust as long as there is air; but the filter element needs to have a certain pressure during the water supply process. If the pressure is too low, the water flow rate will slow down and the water supply efficiency will be reduced; but without an exhaust device, it will cause explosion damage to the equipment and seriously affect personnel safety; for example, authorization announcement number CN208302535U discloses a quick-install capsule filter element for quickly replacing the inner filter element. The device includes a shell, a liquid inlet interface, an inner filter element, a base and a liquid discharge interface, wherein the liquid inlet interface and the liquid discharge interface are integrally formed with the shell and the base, and the outer tube body is fixedly connected to the filter element through the liquid inlet interface and the liquid discharge interface. The liquid inlet interface is threaded. The discharge interface adopts a pagoda connection, which is a single connection method. The external tube body and the liquid inlet interface can only be connected by a threaded connection, and the external tube body and the discharge interface can only be connected by a pagoda connection. When the connection method of the external tube body does not match the liquid inlet interface and the discharge interface, the filter element or the external tube body needs to be replaced. Because the cost of replacing the filter element is large, it can only be replaced or purchased with an external tube body that matches the connection method, thereby reducing work efficiency and use cost; and no exhaust device is installed on the filter element housing, but a certain pressure is required during the water supply process of the filter element. If the pressure is too low, the water flow rate will slow down and the water supply efficiency will be reduced; without an exhaust device, the pressure in the filter element will be too high and there will be no place to release the pressure, which will damage the equipment and affect personnel safety. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the connection method is single and the pressure in the filter element cannot be relieved when it is too high, thereby affecting the service life of the filter element and the equipment and the safety of the equipment operator, and to propose a positioning and installing self-locking capsule filter element.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: a positioning and installing self-locking capsule filter element, comprising a capsule inner filter element, an outer shell, a valve plate, a matching male head, a button, an elastic member and a pressure relief device; its characteristic is that a capsule inner filter element is installed in the outer shell; a matching male head is installed on the outer shell; a valve plate and an elastic member are provided in sequence at one end of the matching male head; one end of the elastic member is connected to the valve plate, and the other end is connected to the water inlet connected to the outer shell; a pressure relief device is installed on the outer shell.

[0005] Preferably, the outer shell includes a bladder-type inlet outer shell and a bladder-type outlet outer shell; the bladder-type inlet outer shell and the bladder-type outlet outer shell are fixedly connected by welding.

[0006] Preferably, the pressure relief device comprises a vent nut, a pressure relief spring and a pressure relief valve plate.

[0007] Preferably, a vent nut is detachably connected to the capsule-type inlet housing.

[0008] Preferably, the pressure relief spring is mounted on the vent nut; one end of the pressure relief spring is connected to the vent nut, and the other end is fixedly connected to the pressure relief valve plate.

[0009] Preferably, the matching male head is provided with a through hole; an elastic member is installed at the through hole; one end of the elastic member is fixedly connected to the valve plate, and the other end is fixedly connected to the matching male head.

[0010] Preferably, a button is installed on the matching male head; a spring is arranged inside the button; one end of the spring is connected to the button, and the other end is connected to the capsule-type inlet housing.

[0011] Preferably, the valve plate is provided with a plurality of sharp corners; the sharp corners are evenly distributed in a circular shape on the circumference of the outer end of the valve plate.

[0012] Preferably, the elastic element is a spring or an elastic sheet.

[0013] The beneficial effects of the present invention are as follows: the filter element has a simple structure, is easy to use, can be applied to various connection modes, is easy to install, and the safety of the filter element, the equipment, and the equipment operators is more guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a left side view of the present invention.

[0016] Figure 3 It is a schematic diagram of pressurizing the filtrate at A of the present invention.

[0017] Figure 4 It is a schematic diagram of pulling out the matching male connector at location A of the present invention.

[0018] Figure 5 It is a schematic diagram of normal installation and ventilation of the pressure relief device of the present invention.

[0019] Figure 6 It is a ventilation schematic diagram when the pressure relief device of the present invention is not installed normally.

[0020] Figure 7 It is a ventilation schematic diagram of the working state of the pressure relief device of the present invention.

[0021] Figure 8 It is a structural schematic diagram of the valve plate of the present invention.

[0022] Legend: 1 capsule inlet housing; 2 capsule outlet housing; 3 capsule inner filter element; 4 matching male connector; 5 button; 6 pressure relief device; 601 vent nut; 602 pressure relief spring; 603 pressure relief valve plate; 7 spring; 8 valve plate; 801 sharp corner; 9 elastic member; 10 through hole; 12 outer housing; 13 water inlet. DETAILED DESCRIPTION

[0023] Next, we will further explain the positioning and installation self-locking capsule filter element described in the present invention in conjunction with the accompanying drawings.

[0024] like Figure 1-5 As shown in, a positioning and installing self-locking capsule filter element of this embodiment includes a capsule inner filter element 3, an outer shell 12, a valve plate 8, a matching male head 4, a button 5, an elastic member 9 and a pressure relief device 6; it is characterized in that a capsule inner filter element 3 is installed in the outer shell 12; a matching male head 4 is installed on the outer shell 12; one end of the matching male head 4 is provided with a valve plate 8 and an elastic member 9 in sequence; one end of the elastic member 9 is connected to the valve plate 8, and the other end is connected to the water inlet 13 connected to the outer shell 12; a pressure relief device 6 is installed on the outer shell 12; the outer shell 12 includes a capsule inlet shell 1 and a capsule outlet shell 2; the capsule inlet shell 1 and the capsule outlet shell 2 are fixedly connected by welding; the pressure relief device 6 includes a vent nut 601, a pressure relief spring 602 and Pressure relief valve plate 603; the vent nut 601 is detachably connected to the bladder-type inlet housing 1; a pressure relief spring 602 is installed in the vent nut 601; one end of the pressure relief spring 602 is connected to the vent nut 601, and the other end is fixedly connected to the pressure relief valve plate 603; the matching male head 4 is provided with a through hole 10; an elastic member 9 is installed at the through hole 10; one end of the elastic member 9 is fixedly connected to the valve plate 8, and the other end is fixedly connected to the matching male head 4; a button 5 is installed on the matching male head 4; a spring 7 is arranged in the button 5; one end of the spring 7 is connected to the button 5, and the other end is connected to the bladder-type inlet housing 1; a plurality of sharp corners 801 are arranged on the valve plate 8; the sharp corners 801 are evenly distributed on the circumference of the outer end of the valve plate 8 in a circular shape.

[0025] When the present invention is used, the filtered liquid enters the filter element through the through hole 10 provided on the matching male head 4. The liquid entering the through hole pushes the valve plate 8 open by pressure, and the elastic member 9 installed on the valve plate 8 begins to shrink. The filtered liquid begins to enter the capsule inner filter element 3 installed in the shell for filtration. When the pressure in the shell is too large, the pressure in the shell will push the pressure relief valve plate 603. When the pressure relief valve plate 603 is pushed open, the pressure relief spring 602 also shrinks and begins to release the pressure. When the pressure in the capsule inlet shell 1 is lower than the outside, the pressure relief spring 602 begins to reset, and the pressure relief valve plate 603 begins to block the pressure relief port. The filtered liquid enters the water outlet of the capsule outlet shell 2, and then pushes the valve plate 8 open by water pressure to enter the through hole 10 of the matching male head 4, and finally enters the subsequent device for use. The connector connected to the external pipe body on the matching male head can have a threaded connection, a pagoda connection or a snap connection. When connecting, the matching male head can be replaced according to the connection method of the external pipe body for connection.

[0026] The beneficial effects of the present invention are as follows: by adding a pressure relief device 6 to the capsule inlet housing 1, the vent nut 601 is threadedly connected to the capsule inlet housing 1, and the pressure that the pressure relief valve plate 603 can withstand in the filter element can be changed by the tightening degree of the vent nut 601. When the pressure in the filter element is too high, the pressure in the filter element will push the pressure relief spring 602 to contract and drive the pressure relief valve plate 603 to open to release the pressure, thereby ensuring the service life of the filter element and the equipment used and the safety of the equipment operators; by using matching male heads 4 on the capsule inlet housing 1 and the capsule outlet housing 2 of the filter element, when the connection method or size of the external tube body and the filter element is different, the corresponding matching male heads 4 can be replaced according to the connection method of the external tube body threaded connection, pagoda connection or snap connection, so that the filter element can be suitable for a variety of different types of connection methods, which is convenient for installation and use.

[0027] The protection scope of the present invention is not limited to the above embodiments and their variations. Conventional modifications and replacements made by those skilled in the art based on the contents of this embodiment all fall within the protection scope of the present invention.

Claims

1. A self-locking capsule filter element for positioning and installation, comprising a capsule inner filter element (3), an outer shell (12), a valve plate (8), a matching male connector (4), a button (5), an elastic member (9) and a pressure relief device (6); wherein the feature is A capsule-type inner filter element (3) is installed in the outer shell (12); a matching male connector (4) is installed on the outer shell (12); a valve plate (8) and an elastic member (9) are provided in sequence at one end of the matching male connector (4); one end of the elastic member (9) is connected to the valve plate (8), and the other end is connected to a water inlet (13) connected to the outer shell (12); a pressure relief device (6) is installed on the outer shell (12); the pressure relief device (6) comprises a vent nut (601), a pressure relief spring (602) and a pressure relief valve plate (603); the outer shell (12) comprises a capsule-type inlet shell (1) and a capsule-type outlet shell (2); the capsule-type inlet A vent nut (601) is detachably connected to the housing (1); the pressure relief spring (602) is mounted on the vent nut (601); one end of the pressure relief spring (602) is connected to the vent nut (601), and the other end is fixedly connected to the pressure relief valve plate (603); a button (5) is mounted on the matching male connector (4); a spring (7) is arranged inside the button (5); one end of the spring (7) is connected to the button (5), and the other end is connected to the capsule inlet housing (1); a plurality of sharp corners (801) are arranged on the valve plate (8); the sharp corners (801) are evenly distributed on the circumference of the outer end of the valve plate (8) in a circular shape.

2. A positioning and installing self-locking capsule filter according to claim 1, characterized in that: The sac-type inlet shell (1) and the sac-type outlet shell (2) are fixedly connected by welding.

3. The self-locking capsule filter element according to claim 1, characterized in that: The matching male head (4) is provided with a through hole (10); an elastic member (9) is installed at the through hole (10); one end of the elastic member (9) is fixedly connected to the valve plate (8), and the other end is fixedly connected to the matching male head (4).

4. The self-locking capsule filter element according to claim 1 is characterized in that: The elastic member (9) is a spring or an elastic sheet.

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