A kind of filter flask assembly
Technical field
The utility model relates to a kind of filter plant, particularly relates to a kind of filter flask assembly be used to the filter core of packing into.
Background technology
The filter flask assembly is a kind of filter plant be used to the filter core of packing into, market upper filter kind is very many, filter core comprises PP filter core, UDF filter core and CTO filter core etc., can be according to filter to require selecting the different filter cores filter flask assembly of packing into, and the filter flask assembly is packed into and is just formed complete filter behind the filter core.Therefore, for the ease of installing and changing different filter cores, existing filter flask assembly all needs eaily detaching structure.Existing filter flask assembly mainly is comprised of the filter flask body and the filter cover that are used for the installation filter core, the filter flask body is connected regular screw threads with filter cover and connects, this class filter flask modular construction is single, not only bonding strength is low, and poor sealing, in the filter flask assembly, form high pressure when accessing the water that needs filtration, easily leak in the junction.
Summary of the invention
Goal of the invention of the present utility model provides a kind of novel structure, and bonding strength is high, the filter flask assembly of good airproof performance.
In order to realize the foregoing invention purpose, the utility model by the following technical solutions:
A kind of filter flask assembly, comprise for the filter flask body that filter core is installed, with filter cover, the first sealing ring and second sealing ring of filter flask Ontology Matching; Filter flask body upper end is circular bottleneck, and the upper end lateral wall of filter flask body is provided with outer rectangular thread; Filter upper part of the cover one side is provided with water inlet, and opposite side is provided with delivery port; The madial wall of filter cover bottom is provided with interior rectangular thread, filter cover is connected by rectangular thread with the filter flask body, the first sealing ring and the second sealing ring all are between filter flask body and the filter cover, wherein the first sealing ring is installed in the circular bottleneck mouth end face place of rectangular thread top, and the second sealing ring is installed on the filter flask body of below of outer rectangular thread.
As preferably, also comprise water inlet transfer tube and delivery port transfer tube, the water inlet transfer tube is installed on the water inlet, and the delivery port transfer tube is installed on the delivery port.
As preferably, described water inlet transfer tube and delivery port transfer tube and all are right angle transfer tubes, the inner of the inner of water inlet transfer tube and delivery port transfer tube is threaded with water inlet and delivery port respectively, and the outer end all is snap joint.
As preferably, the cross section of described the first sealing ring and the second sealing ring is all rounded, further improves sealing effectiveness.
Adopt the designed filter flask assembly of such scheme, comprise that for filter flask body, filter cover, the first sealing ring and the second sealing ring, the filter flask body is connected rectangular thread with filter cover and connects, bonding strength is high, long service life.Although but simple rectangular thread has improved bonding strength, but precision is not high, can't accomplish sealing and anti-leakage water, therefore the utility model adopts the first sealing ring and the second sealing ring and rectangular thread collocation, the first sealing ring is installed in the circular bottleneck mouth end face place of rectangular thread top, the second sealing ring is installed on the filter flask body of below of outer rectangular thread, twice double-layer seal before and after the rectangular thread junction, and sealing and anti-leakage water is effective.In a word, the advantage of this filter flask assembly is: novel structure, and the bonding strength of filter flask body and filter cover is high, and sealing and anti-leakage is effective, long service life.
Description of drawings
Fig. 1: the cutaway view of the utility model embodiment.
The specific embodiment
The below is described in further detail the technical solution of the utility model by reference to the accompanying drawings.
A kind of filter flask assembly as shown in Figure 1, comprise for the filter flask body 1 that filter core 7 is installed, with filter cover 2, water inlet transfer tube 3, delivery port transfer tube 4, the first sealing ring 5 and second sealing ring 6 of filter flask body 1 coupling.
Filter flask body 1 upper end is circular bottleneck 11, so filter flask body 1 upper surface is the oral area end face 111 of circular bottleneck 11, and oral area end face 111 is provided with the first annular mounting groove.The upper end lateral wall of filter flask body 1 is provided with outer rectangular thread 12, and outer rectangular thread 12 continues downwards as top with circular bottleneck 11 outer edges, and the lateral wall of outer rectangular thread 12 ends is provided with the second annular mounting groove.One side on filter cover 2 tops is provided with water inlet 21, and opposite side is provided with delivery port 22, and water inlet 21 and delivery port 22 all are inner thread mouths.Water inlet transfer tube 3 and delivery port transfer tube 4 and all are right angle transfer tubes, the inner of water inlet transfer tube 3 is the external screw thread pipeline section, and the outer end is snap joint 31, and water inlet transfer tube 3 is installed on the water inlet 21 by inner thread connecting mode; Delivery port transfer tube 4 also is the inner external screw thread pipeline section that is, the outer end is the structure of snap joint 31, and delivery port transfer tube 4 is installed on the delivery port 22 by inner thread connecting mode, by water inlet transfer tube 3 and delivery port transfer tube 4 are set, need not instrument, greatly facilitate in the filter flask access pipeline.The madial wall of filter cover 2 bottoms is provided with interior rectangular thread 23, interior rectangular thread 23 and above-mentioned outer rectangular thread 12 couplings, filter cover 23 and filter flask body 1 are connected by rectangular thread, the first sealing ring 5 and the second sealing ring 6 all are between filter flask body 1 and the filter cover 2, wherein the first sealing ring 5 specifically is installed in circular bottleneck mouth end face 111 places of rectangular thread top, namely is installed on the first above-mentioned annular mounting groove; And the second sealing ring 6 is installed on the filter flask body 1 of below of outer rectangular thread 12, namely is installed on the second above-mentioned annular mounting groove.The first sealing ring 5 is in top, rectangular thread junction, and with the top sealing, the second sealing ring 6 is terminal in the rectangular thread junction, with end seal, and double-layer seal, good sealing effect.
During use, the filter core 7 of packing into covers filter cover 2, then water inlet pipe is inserted the outer end of water inlet transfer tube 3, in like manner outlet pipe is inserted the outer end of delivery port transfer tube 4, by grafting snap joint 31, connects fast.The Natural Water of water inlet pipe flows along the A direction of arrow among the figure, is introduced into filter flask body 1, filters through filter core 7, flows out from delivery port transfer tube 4 again.Natural Water filters forefoot area at filter core 7, often forms high pressure, therefore will the two seals device be set in filter flask body 1 and filter cover 23 junctions and can not leak to guarantee it.
In addition, above-mentioned the first sealing ring 5 and the second sealing ring 6 all are the rounded O RunddichtringOs in cross section, the O sealing ring be squeezed can elasticity distending fill up the tiny slit that leaks, good sealing effect.