Straight-through type valve head and filter

Abstract

The utility model discloses a straight-through type valve head and a filter, and belongs to the field of filtering equipment. The filter comprises a pipe body, a filter element, a hoop and a straight-through type valve head, the straight-through type valve head comprises a valve head shell, a liquid inlet pipe opening and a liquid outlet pipe opening, the liquid inlet pipe opening and the liquid outlet pipe opening are connected with the valve head shell, a straight-through pipe opening capable of being directly connected with the filter element of the filter is formed in the valve head shell, and the liquid inlet pipe opening is communicated with the straight-through pipe opening. Compared with an existing filter, the straight-through type valve head is adopted in the filter, fluid can directly enter the filter element through the straight-through pipe opening from the liquid inlet pipe opening, a straight-through type liquid inlet structure is formed, the liquid inlet efficiency is high, and the filtering efficiency of the filter is also high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to filter equipment field, and particularly relates to a straight -through valve head and filter. BACKGROUND

[0002] The filter can effectively remove impurities in sewage, and is widely applied in metallurgy, electric power, petrochemical industry, environmental protection, agricultural water conservancy and other fields. The existing filter, especially the pre-filter, usually has a valve head to control the fluid.

[0003] For example, the patent with the application number 201911006251.X discloses a pre-filter, which comprises a valve head, a cylinder, a filter element and a sealing ring. Figure 1 It can be seen that the valve head is not straight-through, and the inlet of the valve head does not face the filter element. When the fluid enters the filter from the valve head, it does not directly enter the filter element for filtration, but first enters the filter element from the side for filtration, and then flows out from the middle of the filter element. This filtration method is relatively inefficient. UTILITY MODEL CONTENT

[0004] To solve the above problems, the purpose of the utility model is to provide a straight-through valve head, which has higher filtration efficiency when applied to a filter.

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

[0006] The utility model provides a straight-through valve head, which comprises a valve head shell, an inlet pipe opening and an outlet pipe opening connected with the valve head shell, a straight-through pipe opening capable of being directly connected with a filter element of a filter is arranged in the valve head shell, and the inlet pipe opening is in communication with the straight-through pipe opening.

[0007] Further, the inlet pipe opening comprises an outer opening and an inner hole in communication, one end of the inner hole is in communication with the outer opening, the other end is in communication with the straight-through pipe opening, and the diameter of the outer opening is 1.2-1.5 times the diameter of the inner hole.

[0008] Further, a pressure gauge opening is further arranged on the valve head shell, which can be used for installing a pressure gauge to detect the pressure in the filter.

[0009] Further, a hanging plate mounting opening is further arranged on the valve head shell, which can be used for installing a hanging plate, so as to facilitate the hanging installation of the filter.

[0010] The utility model provides a filter, which comprises a pipe body, a filter element, a clamp and the straight-through valve head, the pipe body is connected with the valve head shell and is locked through the clamp, the filter element is arranged in the pipe body, the straight-through pipe opening is in abutment with the filter element, and the contact surface of the straight-through pipe opening and the filter element is in sealing connection.

[0011] Further, a filter cavity is arranged between the pipe body and the valve head shell, which surrounds the straight-through pipe opening and the filter core, and the liquid outlet opening is in communication with the filter cavity.

[0012] Further, the filter core comprises a filter core body, a bidirectional screw rod, a disc nut, and a filter core gasket, the bidirectional screw rod is arranged in the filter core body, one end of the bidirectional screw rod is threadedly connected with the disc nut, and the filter core gasket is arranged between the disc nut and the filter core body; a connecting screw hole is arranged on the inner wall of the straight-through pipe opening, and the other end of the bidirectional screw rod penetrates into the connecting screw hole.

[0013] Further, the bottom of the pipe body is further provided with a blowdown opening.

[0014] Further, the end of the valve head shell connected with the pipe body is provided with a first butt joint boss, the end of the pipe body connected with the valve head shell is provided with a second butt joint boss, the first butt joint boss is butted with the second butt joint boss, the inner side of the clamp is provided with a clamping groove for locking the first butt joint boss and the second butt joint boss, and the edges of the first butt joint boss and the second butt joint boss are clamped in the clamping groove.

[0015] Further, the clamp has a clamp ring matched with the first butt joint boss and the second butt joint boss, the first butt joint boss and the second butt joint boss are located in the clamp ring, the clamping groove is arranged on the inner side wall of the clamp ring, the clamp ring has an opening, a locking screw for adjusting the opening degree of the opening is connected to the clamp ring, a rotating shaft is arranged on the clamp ring, and the locking screw is rotationally connected with the rotating shaft.

[0016] Further, the outer wall of the first butt joint boss away from the second butt joint boss and the outer wall of the second butt joint boss away from the first butt joint boss are both in a beveled structure, and the clamping groove is an expanded groove matched with the bevel.

[0017] Further, a sealing ring is further arranged between the first butt joint boss and the second butt joint boss.

[0018] Further, the clamp comprises a first clamp body and a second clamp body, one end of the first clamp body and the second clamp body is rotationally connected, and the other end is provided with the opening, so that the clamp can be opened and closed like a clamp by rotation.

[0019] Further, handles for controlling the opening and closing of the first clamp body and the second clamp body are arranged on the first clamp body and the second clamp body.

[0020] Compared with the prior art, the beneficial effect of the utility model is that when the straight-through valve head is applied to the filter, fluid can directly enter into the filter element from the liquid inlet pipe opening through the straight-through pipe opening, forming a straight-through liquid inlet structure, and the liquid inlet efficiency is high, so that the filtering efficiency of the filter is also high. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the structural schematic diagram of the filter.

[0022] Figure 2 is the sectional view of the filter.

[0023] Figure 3 is Figure 2 the local enlarged view of A in the middle.

[0024] Figure 4 is the structural schematic diagram of the straight-through valve head.

[0025] Figure 5 is the structural schematic diagram of the filter element.

[0026] Figure 6 is the structural schematic diagram of the first implementation mode of the clamp.

[0027] Figure 7 is the structural schematic diagram of the second implementation mode of the clamp.

[0028] In the drawing: 1, pipe body; 11, second butt joint boss; 2, filter element; 21, filter element main body; 22, bidirectional screw rod; 23, disc nut; 24, filter element gasket; 3, clamp; 31, clamping groove; 32, hoop; 33, opening; 34, locking screw; 35, rotating shaft; 36, first hoop body; 37, second hoop body; 38, handle; 4, straight-through valve head; 41, valve head shell; 42, liquid inlet pipe opening; 421, outer opening; 422, inner hole; 43, liquid outlet pipe opening; 44, straight-through pipe opening; 45, pressure gauge opening; 46, hanging plate mounting opening; 47, connecting screw hole; 48, first butt joint boss; 5, filtering cavity; 6, blowdown opening; 7, sealing ring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0030] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0031] Referring to Figures 1-7As shown, the embodiment provides a filter, which comprises a pipe body 1, a filter core 2, a clamp 3 and a straight-through valve head 4, the straight-through valve head 4 comprises a valve head shell 41 and a liquid inlet pipe 42 and a liquid outlet pipe 43 connected with the valve head shell 41; the pipe body 1 is connected with the valve head shell 41 and locked by the clamp 3; the filter core 2 is arranged in the pipe body 1; a straight-through pipe 44 is arranged in the valve head shell 41, the liquid inlet pipe 42 is communicated with the straight-through pipe 44, the straight-through pipe 44 is opposite to the filter core 2, and the straight-through pipe 44 is sealingly connected with the contact surface of the filter core 2. When the filter is used, the fluid can directly enter into the filter core from the liquid inlet pipe 42 through the straight-through pipe 44, forming a straight-through liquid inlet structure, so that the liquid inlet efficiency is high, and the filtering efficiency of the filter is also high.

[0032] Further, the liquid inlet pipe 42 comprises an outer port 421 and an inner hole 422 communicated with each other, one end of the inner hole 422 is communicated with the outer port 421, the other end is communicated with the straight-through pipe 44, and the diameter of the outer port 421 is 1.2-1.5 times of the diameter of the inner hole 422.

[0033] Further, the valve head shell 41 is further provided with a pressure gauge port 45, which can be used for installing a pressure gauge to detect the pressure in the filter.

[0034] Further, the valve head shell 41 is further provided with a hanging plate mounting port 46, which can be used for installing a hanging plate, so as to facilitate the hanging installation of the filter.

[0035] Further, the pipe body 1 and the valve head shell 41 are provided with a filter cavity 5, which surrounds the straight-through pipe 44 and the circumferential side of the filter core 2, and the liquid outlet pipe 43 is communicated with the filter cavity 5. In this application, the fluid enters into the filter core 2 from the liquid inlet pipe 42 through the straight-through pipe 44, and then enters into the filter cavity 5 after being filtered, and then flows out from the liquid outlet pipe 43, completing the filtering.

[0036] Further, the filter core 2 comprises a filter core body 21, a bidirectional screw rod 22, a disc nut 23 and a filter core gasket 24, the bidirectional screw rod 22 is arranged in the filter core body 21, one end of the bidirectional screw rod 22 is threadedly connected with the disc nut 23, and the filter core gasket 24 is arranged between the disc nut 23 and the filter core body 21; a connecting screw hole 47 is arranged on the inner wall of the straight-through pipe 44, and the other end of the bidirectional screw rod 22 penetrates into the connecting screw hole 47. The above structure can fix the filter core 2 through the valve head shell 41, so that the filter core 2 does not need to be directly connected with the pipe body 1 of the filter, thereby facilitating the disassembly and replacement of the filter core 2.

[0037] Further, the bottom of the pipe body 1 is further provided with a blowdown port 6.

[0038] Further, the valve head shell 41 is provided with a first butt joint boss 48 at the end connected with the pipe body 1, the pipe body 1 is provided with a second butt joint boss 11 at the end connected with the valve head shell 41, the first butt joint boss 48 is butted with the second butt joint boss 11, the inner side of the clamp 3 is provided with a clamping groove 31 for locking the first butt joint boss 48 and the second butt joint boss 11, and the edges of the first butt joint boss 48 and the second butt joint boss 11 are clamped in the clamping groove 31.

[0039] Further, the clamp 3 is provided with a hoop 32 matched with the first butt joint boss 48 and the second butt joint boss 11, the first butt joint boss 48 and the second butt joint boss 11 are located in the hoop 32, the clamping groove 31 is arranged on the inner side wall of the hoop 32, the hoop 32 is provided with an opening 33, the hoop 32 is connected with a locking screw 34 for adjusting the opening degree of the opening 33, the hoop 32 is provided with a rotating shaft 35, and the locking screw 34 is rotationally connected with the rotating shaft 35. In the application, the opening degree of the opening 33 can be adjusted by the locking screw 34, so as to adjust the size of the hoop 32 and realize the locking and releasing between the first butt joint boss 48 and the second butt joint boss 11.

[0040] Further, the outer wall of the first butt joint boss 48 away from the second butt joint boss 11 and the outer wall of the second butt joint boss 11 away from the first butt joint boss 48 are both in a bevel structure, and the clamping groove 31 is a flared groove matched with the bevel. In the application, in the process of rotating the locking screw 34 to reduce the size of the hoop 32, the flared groove can continuously press the bevel of the first butt joint boss 48 and the second butt joint boss 11, so that the butt joint between the first butt joint boss 48 and the second butt joint boss 11 is more compact, thereby improving the stability of the connection between the straight-through valve head 4 and the pipe body 1.

[0041] Further, the first butt joint boss 48 and the second butt joint boss 11 are further provided with a sealing ring 7.

[0042] Further, referring to Figure 7 In another implementation mode, the clamp 3 comprises a first hoop body 36 and a second hoop body 37, one end of the first hoop body 36 and the second hoop body 37 is rotationally connected, and the other end is provided with the opening 33, so that the clamp 3 can be opened and closed like a clip by rotating.

[0043] Further, the first hoop body 36 and the second hoop body 37 are both provided with a handle 38 for controlling the opening and closing of the first hoop body 36 and the second hoop body 37.

[0044] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A straight-way valve head, characterized in that include: It includes a valve head housing and an inlet and an outlet pipe connected to the valve head housing. The valve head housing is provided with a straight-through pipe that can be directly connected to the filter element. The inlet pipe is connected to the straight-through pipe.

2. A straight-way valve head as defined in claim 1, characterized in that The liquid inlet includes an outer opening and an inner hole that are connected. One end of the inner hole is connected to the outer opening, and the other end is connected to the straight pipe opening. The diameter of the outer opening is 1.2-1.5 times the diameter of the inner hole.

3. A straight-way valve head as defined in claim 1, characterized in that The valve head housing is also provided with a pressure gauge port.

4. A straight-way valve head as defined in claim 1, characterized in that The valve head housing is also provided with a mounting plate mounting port.

5. A filter comprising a tube, a filter element, a clamp and the straight- through valve head according to any one of claims 1 to 4, characterized in that The tube body is connected to the valve head housing and locked by the clamp; the filter element is disposed in the tube body, the straight through port is connected to the filter element, and the contact surface between the straight through port and the filter element is sealed.

6. A filter as claimed in claim 5, wherein, A filter chamber is provided between the tube body and the valve head housing. The filter chamber surrounds the straight-through pipe port and the filter element, and the liquid outlet port is connected to the filter chamber.

7. A filter as claimed in claim 5, wherein, The filter element includes a filter element body, a bidirectional screw, a disc nut, and a filter element gasket. The bidirectional screw is disposed inside the filter element body, and one end of the bidirectional screw is threadedly connected to the disc nut. The filter element gasket is disposed between the disc nut and the filter element body. A connecting screw hole is provided on the inner wall of the straight through-hole, and the other end of the bidirectional screw passes through the connecting screw hole.

8. A filter as claimed in claim 5, wherein, The valve head housing is provided with a first mating boss at one end connected to the pipe body, and a second mating boss at the other end connected to the valve head housing. The first mating boss and the second mating boss are mated to each other. The inner side of the clamp is provided with a clamping groove for locking the first mating boss and the second mating boss. The edges of the first mating boss and the second mating boss are clamped in the clamping groove.

9. A filter as claimed in claim 8, wherein, The clamp has a ring that is adapted to the first mating boss and the second mating boss. The first mating boss and the second mating boss are located inside the ring. The clamping groove is provided on the inner side wall of the ring. The ring has an opening. A locking screw for adjusting the opening is connected to the ring. A rotating shaft is provided on the ring. The locking screw is rotatably connected to the rotating shaft.

10. A filter as claimed in claim 9, wherein, The outer wall of the first docking boss away from the second docking boss and the outer wall of the second docking boss away from the first docking boss are both inclined structures, and the clamping groove is an flared groove adapted to the inclined surface.

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