Universal assembly and pre-filter thereof

Abstract

The universal assembly comprises a copper head assembly covering a filter bottle of the prefilter and a universal joint connected with the copper head assembly, the universal joint is in a T shape, the two ends of the T shape are provided with a PPR hot melting connector and a threaded copper piece, the PPR hot melting connector is provided with a water inlet or a water outlet, and the threaded copper piece is provided with a water inlet and a water outlet. The threaded copper piece is correspondingly arranged as a water outlet or a water inlet according to the arrangement of the PPR hot melting joint; the copper head assembly is provided with a connecting hole, one end of the T-shaped universal joint is a universal pipe, and the universal pipe is inserted into the opening to be connected with the copper head assembly. According to the utility model, the problems that the procedures are tedious when PPR hot melting joints at two ends are mounted, water leakage is easily caused when the PPR hot melting joints at the two ends are inappropriate in operation, and the assembly is tedious are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification equipment field especially is involved in a universal assembly and its front filter. BACKGROUND

[0002] The existing universal front filter adopts full copper material for the universal joint, and the two sides are copper threaded structures, the PPR joint and the universal joint are pressed tightly to form a seal through the threaded copper piece.

[0003] The existing universal front filter has the following problems:

[0004] 1. The existing universal front filter mainly uses inserts to achieve lead isolation technology in the universal joint. During installation, multiple parts are required to achieve lead isolation, and manpower is required during assembly.

[0005] 2. The inserts are mainly PPR pipes. During installation, the length of the universal joint is compared with the existing PPR pipe, and then the existing PPR pipe is cut. Then, the PPR joint is hot-melted at the break of the PPR pipe. The threaded copper piece is used to press the PPR joint and the universal joint tightly to form a sealing effect. However, the insertion depth of the PPR joint and the PPR pipe is different during hot-melting, which causes a difference between the distance of the two PPR joints and the distance of the two ends of the universal joint. If the distance between the two PPR joints is too long, the PPR pipes at both ends of the front filter will be stretched after the front filter is installed. If the distance between the two PPR joints is too short, the PPR pipes at both ends of the front filter will be squeezed after the front filter is installed. Both cases are not good for the PPR pipes. Since the length of a single PPR joint is short, it is easy to twist during hot-melting. After twisting, the front filter before the front filter will be sealed poorly, causing water leakage. UTILITY MODEL CONTENTS

[0006] The utility model aims to solve the above technical problems and provides a universal assembly and a front filter thereof. The utility model solves the problems of complicated process during hot-melting of the PPR joints at both ends of the front filter during installation, water leakage caused by improper operation of the PPR joints at both ends, and complicated assembly.

[0007] The utility model solves the above technical problems by adopting the following technical scheme: a universal assembly includes a copper head assembly covering a filter bottle of a front filter, and a universal joint connected with the copper head assembly. The universal joint is T-shaped, and PPR hot-melt joints and threaded copper pieces are provided at both ends of the T-shaped universal joint. The PPR hot-melt joints are provided as water inlets or outlets, and the threaded copper pieces are provided as water outlets or inlets according to the arrangement of the PPR hot-melt joints.

[0008] The copper head assembly is provided with a connecting hole, the universal joint T-shaped one end is a universal pipe, the universal pipe is inserted into the opening and connected with the copper head assembly. Through the setting of the PPR hot melt joint, it can be directly hot melted with the PPR pipe; through the setting of the threaded copper piece, it can be matched with the copper nut, so as to realize the compression and sealing with the PPR joint of the user during installation.

[0009] As preferred, the copper head assembly comprises a connecting piece, a copper head insert provided in the connecting piece, the connecting piece is provided with a first connecting hole, the copper head insert is provided with a second connecting hole, the inner side of the connecting piece and the outer side of the copper head insert form a water inlet space; a water outlet pipe connected with the water outlet is provided in the universal pipe, a water inlet channel is formed between the outer side of the water outlet pipe and the inner side of the universal pipe, the water inlet channel communicates with the water inlet space, the water outlet pipe is inserted into the second connecting hole, and the universal pipe is inserted into the first connecting hole.

[0010] As preferred, the copper head assembly further comprises a copper head for covering the filter bottle, a fixing piece is provided on the outer side of the universal pipe, the copper head is 7-shaped, one end is provided on the outer side of the connecting piece, and the other end is provided on the outer side of the fixing pipe. Through the setting of the copper head, the connecting piece and the fixing pipe are wrapped, so that the product is stable and firm, and the service life of the product is improved.

[0011] As preferred, the universal pipe is provided with a universal ring for clamping the fixing piece in the copper head. Through the setting of the universal ring, the displacement of the fixing piece outward can be prevented.

[0012] As preferred, the fixing piece is provided with a groove and a protrusion provided on the outer side of the groove, the copper head is provided with a bolt groove, and the bolt is arranged in the bolt groove and the groove to clamp and fix the protrusion. Through the setting of the bolt, the copper head and the fixing piece are fixed, so as to prevent the displacement of the fixing piece inward and the displacement of the copper head.

[0013] As preferred, the top of the copper head insert abuts against the inner side of the connecting piece, the copper head insert is provided with a protrusion, the connecting piece is provided with a hook portion, and the hook portion clamps the protrusion.

[0014] As preferred, the connecting piece is provided with a protruding rib abutting against the copper head insert. Through the abutment of the protruding rib against the copper head insert, the copper head insert is fixed front and back, the displacement of the copper head insert backward is prevented, the copper head insert is fixed up and down with the connecting piece by the hook portion and the protrusion, the displacement of the copper head insert upward and downward is prevented, and the displacement of the copper head insert caused by the rotation of the universal joint is prevented.

[0015] A front filter comprises a filter bottle, a filter assembly provided in the filter bottle, a pollution discharge assembly provided below the filter assembly, and the universal assembly provided above the filter bottle.

[0016] As preferred, the filtering assembly comprises a filter screen framework, a filter screen arranged outside the filter screen framework, a protection framework arranged outside the filter screen, a flow guide arranged above the protection framework, a sleeve is arranged above the filter screen framework, a sleeve and a through hole arranged above the sleeve are arranged on the sleeve, the copper head insert is inserted into the through hole, and the sleeve is inserted into the filter screen framework. By arranging the protection framework to protect the filter screen and the filter screen framework, and by arranging the flow guide, the flow guide is provided with flow guide blades, the flow guide blades are arranged obliquely, so that the water flow is obliquely downward and impacts the protection framework, so that the protection framework rotates, and the impurities on the filter screen are not deposited on the filter screen.

[0017] As preferred, the pollution discharge assembly comprises a drainage sealing element arranged below the filter screen framework, and a pollution discharge ball valve arranged below the drainage, and the pollution discharge ball valve is provided with a pollution discharge knob.

[0018] The utility model has the advantages that in the installation process, the PPR pipe is cut, one end of the universal joint PPR hot melt joint is hot melted with the PPR pipe, the other end of the PPR pipe is cut after marking, the PPR hot melt joint is hot melted with the PPR pipe, and the PPR pipe and the threaded copper piece on the universal joint are pressed tightly by copper nut, so that the operation is simpler. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure diagram of the universal assembly.

[0020] Figure 2 It is a structure diagram of the universal joint.

[0021] Figure 3 It is a structure diagram of the universal joint from another perspective.

[0022] Figure 4 It is a structure diagram of the copper head assembly.

[0023] Figure 5 It is a structure diagram of the connecting piece and the copper head insert.

[0024] Figure 6 It is a structure diagram of the connecting piece.

[0025] Figure 7 It is Figure 1 It is a structure diagram of the copper head.

[0026] Figure 8 It is a structure diagram of the copper head.

[0027] Figure 9 It is a structure diagram of the front filter.

[0028] Figure 10 It is Figure 9 It is a sectional view along the A-A direction.

[0029] Figure 11 is a structural schematic view of the filter assembly.

[0030] Figure 12 is a structural schematic view of the kit.

[0031] In the figure: 1, universal joint, 11, PPR hot melt joint, 12, threaded copper piece, 13, universal pipe, 131, water outlet pipe, 132, water inlet space, 133, universal ring, 2, copper head, 21, bolt groove, 3, connecting piece, 31, first connecting hole, 32, water inlet channel, 33, hook part, 34, convex rib, 4, copper head insert, 41, convex block, 42, second connecting hole, 5, fixing piece, 51, groove, 52, protrusion, 6, filter bottle, 7, filter assembly, 71, filter screen framework, 72, filter screen, 73, protection framework, 74, flow guide piece, 8, kit, 81, sleeve, 82, through hole, 9, drain assembly, 91, drain sealing piece, 92, drain ball valve, 93, drain knob, 10, copper nut, 100, bolt. DETAILED DESCRIPTION

[0032] The utility model will be further explained in connection with the drawings and embodiments.

[0033] As Figures 1-12 shown, the utility model discloses a universal assembly, including the copper head assembly that covers on the filter bottle 6 of front filter, with the copper head assembly connection's universal joint 1, universal joint 1 is T-shaped, and T-shaped both ends are equipped with PPR hot melt joint 11 and threaded copper piece 12, PPR hot melt joint 11 is equipped as water inlet or water outlet, and threaded copper piece 12 is correspondingly equipped as water outlet or water inlet according to the setting of PPR hot melt joint 11;Copper head assembly is equipped with connecting hole, and universal joint 1 T-shaped one end is universal pipe 13, and universal pipe 13 is inserted into the opening and is connected with copper head assembly.Copper nut 10 is installed on threaded copper piece 12.

[0034] Copper head assembly includes connecting piece 3, copper head insert 4 arranged in connecting piece 3, and connecting piece 3 is equipped with first connecting hole 31, and copper head insert 4 is equipped with second connecting hole 42, and the inner side of connecting piece 3 and the outer side of copper head insert 4 form water inlet space 132;Universal pipe 13 is equipped with water outlet pipe 131 connected with water outlet, and the inner side of universal pipe 13 and the outer side of water outlet pipe 131 form water inlet channel 32, and water inlet channel 32 is communicated with water inlet space 132, and water outlet pipe 131 is inserted into second connecting hole 42, and universal pipe 13 is inserted into first connecting hole 31.

[0035] Copper head assembly still includes copper head 2 for covering filter bottle 6, and the outer side of universal pipe 13 is equipped with fixing piece 5, and copper head 2 is Z-shaped, and one end is arranged on the outer side of connecting piece 3, and the other end is arranged on the outer side of fixing piece 5.

[0036] Universal pipe 13 is equipped with universal ring 133 for clamping fixing piece 5 in copper head 2.

[0037] The fixing member 5 is provided with a groove 51 and a protrusion 52 outside the groove 51, the copper head 2 is provided with a bolt groove 21, and the bolt 100 is arranged in the bolt groove 21 and the groove 51 to clamp and fix the protrusion 52.

[0038] The top of the copper head insert 4 abuts against the inner side of the connecting member 3, the copper head insert 4 is provided with a protrusion 41, the connecting member 3 is provided with a hook portion 33 inside, and the hook portion 33 clamps the protrusion 41.

[0039] The connecting member 3 is provided with a protruding rib 34 abutting against the copper head insert 4.

[0040] A front filter includes a filter bottle 6, a filter assembly 7 arranged in the filter bottle 6, a blowdown assembly 9 arranged below the filter assembly 7, and a universal assembly arranged above the filter bottle 6.

[0041] The filter assembly 7 includes a filter screen framework 71, a filter screen 72 arranged outside the filter screen framework 71, a protection framework 73 arranged outside the filter screen 72, and a flow guide 74 arranged above the protection framework 73, the filter screen framework 71 is provided with a sleeve 8 above, the sleeve 8 is provided with a sleeve pipe 81 and a through hole 82 arranged above the sleeve pipe 81, the bottom of the copper head insert 4 is inserted into the through hole 82, and the sleeve pipe 81 is inserted into the filter screen framework 71.

[0042] The blowdown assembly 9 includes a drainage sealing member 91 arranged below the filter screen framework 71 and a blowdown ball valve 92 arranged below the drainage, the blowdown ball valve 92 is provided with a blowdown knob 93.

[0043] It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

[0044] It should be noted that when an element is referred to as being "fixed" or "arranged" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected or indirectly connected to the other element.

[0045] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0046] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purposes and are not to be construed as indicating relative importance or indicating the number of technical features. In the description of the present application, the meaning of "a plurality of" is two or more than two, unless otherwise specifically limited.

Claims

1. A gimbal assembly, characterized by: The copper head assembly includes a copper head assembly covering the front filter bottle (6), a universal joint (1) connected with the copper head assembly, the universal joint (1) is T-shaped, the two ends of the T-shaped universal joint (1) are provided with a PPR hot melt joint (11) and a threaded copper piece (12), the PPR hot melt joint (11) is provided as a water inlet or a water outlet, and the threaded copper piece (12) is correspondingly provided as a water outlet or a water inlet according to the setting of the PPR hot melt joint (11); the copper head assembly is provided with a connecting hole, one end of the T-shaped universal joint (1) is a universal pipe (13), and the universal pipe (13) is inserted into the opening and connected with the copper head assembly.

2. The gimbal assembly of claim 1, wherein: The copper head assembly includes a connecting piece (3) and a copper head insert (4) arranged in the connecting piece (3), the connecting piece (3) is provided with a first connecting hole (31), the copper head insert (4) is provided with a second connecting hole (42), and the inner side of the connecting piece (3) and the outer side of the copper head insert (4) form a water inlet space (132); the universal pipe (13) is provided with a water outlet pipe (131) connected with the water outlet, and the outer side of the water outlet pipe (131) and the inner side of the universal pipe (13) form a water inlet channel (32), the water inlet channel (32) is communicated with the water inlet space (132), the water outlet pipe (131) is inserted into the second connecting hole (42), and the universal pipe (13) is inserted into the first connecting hole (31).

3. The gimbal assembly of claim 2, wherein: The copper head assembly further includes a copper head (2) for covering the filter bottle (6), the outer side of the universal pipe (13) is provided with a fixing piece (5), the copper head (2) is 7-shaped, one end of the copper head (2) is arranged on the outer side of the connecting piece (3), and the other end of the copper head (2) is arranged on the outer side of the fixing piece (5).

4. The gimbal assembly of claim 3, wherein: The universal pipe (13) is provided with a universal ring (133) for clamping the fixing piece (5) in the copper head (2).

5. The gimbal assembly of claim 3, wherein: The fixing piece (5) is provided with a groove (51) and a protrusion (52) arranged on the outer side of the groove (51), the copper head (2) is provided with a bolt groove (21), and a bolt (100) is arranged in the bolt groove (21) and the groove (51) to clamp and fix the protrusion (52).

6. The gimbal assembly of claim 2, wherein: The top of the copper head insert (4) abuts against the inner side of the connecting piece (3), the copper head insert (4) is provided with a protruding block (41), and the connecting piece (3) is provided with a hook portion (33) arranged in the connecting piece (3), the hook portion (33) is clamped with the protruding block (41).

7. The gimbal assembly of claim 6, wherein: The connecting piece (3) is provided with a protruding rib (34) arranged in the connecting piece (3) and abutting against the copper head insert (4).

8. A prefilter characterized by: The filter bottle (6), the filter assembly (7) arranged in the filter bottle (6), the pollution discharge assembly (9) arranged below the filter assembly (7), and the universal assembly as claimed in any one of claims 1 to 7 are covered on the filter bottle (6).

9. The prefilter of claim 8, wherein: The filter assembly (7) includes a filter screen framework (71), a filter screen (72) arranged on the outer side of the filter screen framework (71), a protection framework (73) arranged on the outer side of the filter screen (72), and a flow guide piece (74) arranged above the protection framework (73), the filter screen framework (71) is provided with a sleeve piece (8) arranged above the filter screen framework (71), the sleeve piece (8) is provided with a sleeve pipe (81) and a through hole (82) arranged above the sleeve pipe (81), the bottom of the copper head insert (4) is inserted into the through hole (82), and the sleeve pipe (81) is inserted into the filter screen framework (71).

10. The prefilter of claim 9, wherein: The pollution discharge assembly (9) comprises a drainage sealing element (91) arranged below the filter screen framework (71) and a pollution discharge ball valve (92) arranged below the drainage, wherein the pollution discharge ball valve (92) is provided with a pollution discharge knob (93).

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