Biological filter head

Abstract

The utility model belongs to the technical field of filter heads, and particularly relates to a biological filter head which comprises a shell, a filter cap and a filter element, a flaring is fixedly connected to an inlet in the top end of the shell, a through hole communicated with an inner cavity of the shell is formed in the center of the flaring, and an annular mounting opening is formed in the top of the flaring; a through hole is formed in the shell, an annular mounting opening is formed in the shell and surrounds an upper end hole opening of the through hole, the top of the filter element is fixedly connected with a top cover, the top cover slides into the through hole, the filter element extends into the shell, a connecting assembly used for being connected with the top cover is arranged in the shell, and the top surface of the top cover is flush with the inner bottom wall of the annular mounting opening. According to the anti-blocking water purifier, a water source is filtered by the anti-blocking filter screen in advance and then flows into the filter element through the water inlet pipe, the anti-blocking filter screen can block large-particle impurities and prevent the large-particle impurities from invading into the filter element to influence the filtering effect and the service life, and the anti-blocking filter screen and the filter element are convenient to disassemble and assemble, so that the operation such as replacement or maintenance is easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to a filter head, particularly to a biological filtration filter head. BACKGROUND

[0002] The filter head is mainly used for blocking small particles and solid suspensions, and can also block filter material to prevent material running. The filter head is made of ABS engineering plastic, has high pressure-bearing strength, and will not be broken by stepping on it. In the filter head structure, the thread is reinforced, and a rubber gasket is added to ensure firm connection. The filter head base is designed to enhance the bottom joint to eliminate dead water area and mud accumulation between the filter head and the filter plate. The filter head is widely used in water treatment filters, filter tanks, and combined type, return type, and ion exchange column equipment for softening water.

[0003] In the prior art, the assembly between the filter housing and the filter core is usually assembled in a flange connection manner. However, multiple fastening bolts need to be operated in the actual operation process, and thus a large amount of time and energy is consumed for disassembly and assembly when the filter core needs to be maintained or replaced. SUMMARY

[0004] The main purpose of the present disclosure is to provide a biological filtration filter head to effectively solve the problems raised by the inventors in the above background.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A biological filtration filter head comprises a shell, a filter cap, and a filter core. The top end of the shell is fixedly connected with a flared portion, and a through hole is formed in the center of the flared portion and communicates with the inner cavity of the shell. An annular mounting port is formed in the top of the flared portion and surrounds the upper end of the through hole. The top of the filter core is fixedly connected with a top cover. The top cover is slid into the through hole, and the filter core extends into the shell. An adapter assembly is arranged in the shell for connecting the top cover. The top surface of the top cover is flush with the inner bottom wall of the annular mounting port. A blockage-preventing filter screen is detachably mounted in the annular mounting port, and the bottom of the blockage-preventing filter screen is attached to the top of the top cover. The filter cap is fixedly connected to the bottom end of the shell.

[0007] Preferably, a water inlet pipe is embedded and mounted in the center of the top cover, and the water inlet pipe leads into the filter core.

[0008] Preferably, the adapter assembly comprises an inner blocking piece and a plug. The inner wall of the shell is fixedly connected with an annular array of inner blocking pieces. The top of each inner blocking piece is fixedly connected with a plug. The bottom of the top cover is provided with a plurality of annular array of interference holes. The top end of the plug is inserted into the interference hole.

[0009] Preferably, the anti-blocking filter screen is inserted into the annular mounting port, the top of the flared mouth is fixedly connected with a positioning block, and the positioning block is rotatably connected with a movable shaft, the movable shaft is fixedly connected with an L-shaped pressing rod, the other end of the L-shaped pressing rod is in contact with the top of the anti-blocking filter screen, one end of the movable shaft is provided with a force torsion spring, and the two ends of the force torsion spring are fixedly connected with the positioning block and the surface of the movable shaft respectively.

[0010] Preferably, the inner wall of the water inlet pipe is fixedly connected with a pull buckle, and the L-shaped pressing rod is fixedly connected with an operating pull ring.

[0011] Preferably, the diameter of the filter cap decreases from top to bottom, and the filter cap is provided with uniformly distributed drainage holes.

[0012] Compared with the prior art, the anti-blocking filter screen is inserted into the annular mounting port, the top of the flared mouth is fixedly connected with a positioning block, and the positioning block is rotatably connected with a movable shaft, the movable shaft is fixedly connected with an L-shaped pressing rod, the other end of the L-shaped pressing rod is in contact with the top of the anti-blocking filter screen, one end of the movable shaft is provided with a force torsion spring, and the two ends of the force torsion spring are fixedly connected with the positioning block and the surface of the movable shaft respectively.

[0013] (I) In the application, the water source is filtered by the anti-blocking filter screen in advance, and then flows into the filter core through the water inlet pipe. The anti-blocking filter screen can block larger impurities, so as to prevent the impurities from invading the filter core and affecting the filtering effect and service life. The anti-blocking filter screen and the filter core are convenient to disassemble and assemble, so that the replacement or maintenance operation is easy.

[0014] (II) In the application, when the anti-blocking filter screen and the filter core are disassembled, the L-shaped pressing rod is pulled to release the pressure on the top of the anti-blocking filter screen, and then the anti-blocking filter screen is removed from the annular mounting port. At this time, the water inlet pipe is exposed, and the filter core can be removed from the shell by pulling the top cover upward. The plug is separated from the interference hole, and the operation is very simple. Without the help of too many tools, the filter core can be quickly disassembled and assembled. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Fig. 1 is a schematic view of a biological filter head structure provided by the utility model;

[0016] Figure 2 Fig. 2 is a sectional view of the biological filter head structure provided by the utility model;

[0017] Figure 3 Fig. 3 is a schematic view of a partial structure in Fig. 1; Figure 2

[0018] Figure 4 Fig. 4 is a top view of the biological filter head structure provided by the utility model;

[0019] Figure 5 Fig. 5 is an enlarged schematic view of position A in Fig. 1. Figure 4

[0020] Fig. 6 is a schematic view of a filter core provided by the utility model.

[0021] ​​1 - shell; 101 - flared; 102 - filter cap; 103 - drainage hole; 2 - filter core; 201 - top cover; 202 - water inlet pipe; 3 - inner baffle; 4 - plug; 5 - anti-blocking filter screen; 6 - positioning block; 7 - movable shaft; 8 - L-shaped pressure rod; 9 - force torsional spring; 10 - operating pull ring; 11 - pull buckle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-5 The utility model provides the following embodiments:

[0024] A biological filter head, comprising a shell 1, a filter cap 102 and a filter core 2, the top end inlet of the shell 1 is fixedly connected with a flared 101, and the center of the flared 101 is provided with a through hole communicated with the inner cavity of the shell 1, the top of the flared 101 is provided with an annular mounting port, and the annular mounting port surrounds the upper end hole of the through hole, the top of the filter core 2 is fixedly connected with a top cover 201, the top cover 201 slides into the through hole, and the filter core 2 extends into the shell 1, the shell 1 is provided with a connection assembly for connecting the top cover 201, and the top surface of the top cover 201 is flush with the inner bottom wall of the annular mounting port, an anti-blocking filter screen 5 is detachably mounted in the annular mounting port, and the bottom of the anti-blocking filter screen 5 is attached to the top of the top cover 201, the filter cap 102 is fixedly connected at the bottom end of the shell 1, the diameter of the filter cap 102 decreases from top to bottom, and the filter cap 102 is provided with uniformly distributed drainage holes 103.

[0025] Specifically, the center of the top cover 201 is embedded with a water inlet pipe 202, and the water inlet pipe 202 leads into the filter core 2.

[0026] Specifically, the connection assembly comprises an inner baffle 3 and a plug 4, the inner wall of the shell 1 is fixedly connected with the inner baffles 3 arranged in a ring array, the top of each inner baffle 3 is fixedly connected with the plug 4, the bottom of the top cover 201 is provided with a plurality of interference holes arranged in a ring array, and the top end of the plug 4 is inserted into the interference hole.

[0027] Specifically, the anti-blocking filter screen 5 is inserted into the annular mounting port, the top of the flared portion 101 is fixedly connected with a positioning block 6, the positioning block 6 is rotatably connected with a movable shaft 7, the movable shaft 7 is fixedly connected with an L-shaped pressing rod 8, the other end of the L-shaped pressing rod 8 is in contact with the top of the anti-blocking filter screen 5, one end of the movable shaft 7 is provided with a force spring 9, and the two ends of the force spring 9 are fixedly connected to the positioning block 6 and the surface of the movable shaft 7 respectively.

[0028] Specifically, the inner wall of the water inlet pipe 202 is fixedly connected with a pull buckle 11, and the L-shaped pressing rod 8 is fixedly connected with an operating pull ring 10, so as to swing the L-shaped pressing rod 8.

[0029] The specific implementation of the embodiment is that the water source is filtered by the anti-blocking filter screen 5 in advance, and then flows into the filter element 2 through the water inlet pipe 202. The anti-blocking filter screen 5 can block larger impurities to prevent them from entering the filter element 2 and affecting the filtering effect and service life. The purified water is discharged from the water outlet hole 103 of the filter cap 102, and the anti-blocking filter screen 5 and the filter element 2 are convenient to disassemble and assemble, so that they are easy to replace or maintain, etc.

[0030] When the anti-blocking filter screen 5 and the filter element 2 are disassembled, the L-shaped pressing rod 8 is pulled to rotate the movable shaft 7, the force spring 9 can reset the movable shaft 7 to swing back, so that the movable shaft 7 releases the pressure on the top of the anti-blocking filter screen 5, and then the anti-blocking filter screen 5 is removed from the annular mounting port. At this time, the water inlet pipe 202 is exposed, and the filter element 2 can be removed from the shell 1 by pulling the top cover 201 upwards. The plug 4 is separated from the interference hole, and the operation is very simple. Without the help of too many tools, the filter element 2 can be quickly disassembled and assembled.

[0031] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, nor limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A biofilter head, characterized by: The utility model provides a filter, including shell (1), filter cap (102) and filter core (2), the top end entrance of shell (1) is fixedly connected with flared mouth (101), and the center of flared mouth (101) is provided with the through -hole that communicates with the inner chamber of shell (1), the top of flared mouth (101) is provided with annular mounting mouth, and annular mounting mouth surrounds the upper end orifice of through -hole, the top of filter core (2) is fixedly connected with top cover (201), top cover (201) slides into through -hole, and filter core (2) extends into shell (1), the inner chamber of shell (1) is equipped with the link assembly for connecting top cover (201), and the top surface of top cover (201) is flush with the inner bottom wall of annular mounting mouth, the detachable installation of anti -blocking filter screen (5) can be achieved in annular mounting mouth, and the bottom of anti -blocking filter screen (5) is attached to the top of top cover (201), filter cap (102) is fixedly connected at the bottom end of shell (1).

2. A biofilter head according to claim 1, characterised in that: The center of top cover (201) is embedded with water inlet pipe (202), and the water inlet pipe (202) leads to the filter core (2).

3. A biofilter head according to claim 2, wherein: The link assembly includes inner baffle (3) and plug (4), the inner wall of shell (1) is fixedly connected with the inner baffle (3) of annular array distribution, the top of each inner baffle (3) is fixedly connected with plug (4), the bottom of top cover (201) is provided with a plurality of interference holes of annular array distribution, and the top end of plug (4) is inserted into the interference hole.

4. A biofilter head according to claim 3, wherein: The anti -blocking filter screen (5) is inserted in annular mounting mouth, the top of flared mouth (101) is fixedly connected with positioning block (6), and positioning block (6) is rotatably installed with movable shaft (7), L type pressure bar (8) is fixedly installed on movable shaft (7), and the other end of L type pressure bar (8) is in contact with the top of anti -blocking filter screen (5), one end of movable shaft (7) is provided with force torsion spring (9), and the both ends of force torsion spring (9) are fixedly connected on positioning block (6) and the surface of movable shaft (7) respectively.

5. A biofilter head according to claim 4, wherein: The inner wall of water inlet pipe (202) is fixedly connected with pull buckle (11), and the L type pressure bar (8) is fixedly connected with operating pull ring (10).

6. A biofilter head according to claim 1, wherein: The diameter of filter cap (102) decreases from top to bottom in turn, and filter cap (102) is provided with uniformly distributed drain hole (103).

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