CN201184446Y

CN201184446Y - Plastic ball float valve with small flow

Info

Publication number: CN201184446Y
Application number: CNU2008200980989U
Authority: CN
Inventors: 卢忠伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-21
Filing date: 2008-04-21
Publication date: 2009-01-21
Anticipated expiration: 2018-04-21

Abstract

The utility model relates to a plastic ball float valve with low flow rate. A valve chamber is arranged at the rear part of a valve body; a water inlet is arranged in front of the valve chamber; the water inlet and the valve chamber are separated through a front chamber wall of the valve chamber and communicated with each other through a water through-hole formed on the front chamber wall; a faucet is arranged at the lower part of the lower wall of the valve chamber; the faucet is communicated with the valve chamber through a water outlet on the lower wall; two side chamber walls of the valve chamber extend backwards to form two lateral plates that are horizontally parallel to each other; a valve cover covers on the two lateral plates and the valve chamber; the lower parts of the two lateral plates are articulated with the front part of a shifting block through pins; a tip-tilted push plug is arranged on the front side of the articulated part of the shifting block; the push plug is clamped and matched with the rear part of a slipper block; the front section of the slipper block has a cylinder structure; a cylinder passes through a rear chamber wall of the valve chamber; a rubber pole embedded into the cylinder can seal up the water through-hole. The plastic ball float valve has the advantages of simple structure, easy manufacture, smaller overall size, flexible and reliable operation and low manufacturing cost, and is easy to be installed in a pint-sized water tank and is convenient to be demounted and maintained.

Description

Small flow plastics float valve

Technical field

The utility model relates to a kind of water valve, relates in particular to small flow plastics float valve.

Background technique

At present, the small flow float valve of installing and using in the small-sized water tank generally is made of parts such as valve body, valve rod, ball float, rubber parts and driving mechanisms, because valve body and lever actuated modular construction complexity, lever actuated assembly and ball float size are bigger than normal, cause whole float valve volume bigger, difficulty is installed, and the dismounting maintenance is inconvenient in small-sized water tank.Simultaneously, the small flow float valve cost of above structure is higher, and the flexibility of control is relatively poor.

The model utility content

Technical problem to be solved in the utility model be to provide a kind of simply small and exquisite, control small flow plastics float valve flexibly.

The technical solution of the utility model is as follows: a kind of small flow plastics float valve, comprise valve body, shifting block, valve rod and ball float, wherein the rear end of shifting block is connected with ball float by valve rod, its key is: be provided with the uncovered valve pocket in upper end at the rear portion of described valve body, there is water intake in the place ahead of this valve pocket, separate by the ante-chamber wall of valve pocket between water intake and the valve pocket, and be communicated with by the water port of offering on the ante-chamber wall; Be provided with water outlet below described valve pocket diapire, this water outlet communicates with valve pocket by the water outlet on the diapire, and chamber, the both sides wall of valve pocket extends back, and forms two blocks of left and right parallel side plates, and valve gap is stamped in the top of biside plate and valve pocket; The bottom of described biside plate is anterior hinged by pin and shifting block, be provided with a group bolt that upwarps in the front side of shifting block hinged place, this group bolt cooperates with the rear portion clamping of slide block, the leading portion of described slide block is a cylindrical structure, this cylindrical body passes the back cavity wall of valve pocket, and the rubber column that is embedded in the cylindrical body can seal up described water port.

The utility model is installed in the small-sized water tank, and the water intake of valve body is connected with the intake pipe of water tank, and ball float floats on the interior liquid level of water tank.When the liquid level in the water tank reached the setting liquid level, the rubber column on the slide block sealed the water port, and the water intake of valve body and valve pocket are not communicated; After water tank discharges water, liquid level is lower than when setting liquid level, ball float descends with liquid level, ball float drives shifting block by valve rod, and shifting block is clockwise rotated around pin, and shifting block drives slide block translation backward again, make the rubber column on the slide block leave the water port, this moment, the water intake and the valve pocket of valve body were communicated with, and the water in the tank inlet pipe flows in the water tank successively by water intake, valve pocket, water outlet and the water outlet of valve body; Along with the continuous inflow of water, liquid level raises gradually in the water tank, and ball float rises with liquid level, ball float drives shifting block by valve rod, and shifting block is rotated counterclockwise around pin, and shifting block drives slide block translation forward again, liquid level in water tank reaches the setting liquid level, and the rubber column on the slide block seals the water port.

In the utility model, because water intake, water port, valve pocket, water outlet and the water outlet of valve body are provided with simply, easy processing makes that the whole valve body structure is small and exquisite and practical; Shifting block and valve rod are formed the lever actuated assembly, compare with conventional art, the structure of shifting block is advantages of simple more, the flexibility of not only controlling slide block movement is good, and can effectively reduce the size of self and valve rod, ball float, make that the size of whole float valve is less, keep in repair to help installation and removal, and reduced cost of production significantly.

Internal surface at above-mentioned valve pocket ante-chamber wall offers annular groove, and the outer surface of valve pocket ante-chamber wall is formed with annular boss, and described annular boss and annular groove all are positioned at the periphery of water port.Annular boss plays a part to gain in strength, and annular groove helps sealing, and when leaning the internal surface of valve pocket ante-chamber wall under the driving of the rubber column on the slide block at shifting block, micro-deformation takes place at the position that the rubber column end face is corresponding with annular groove, and in the embedding annular groove, can reach sealing purpose.

For simplified structure, the rear portion of above-mentioned slide block is a frame structure, and the bolt of dialling on the shifting block stretches in this square frame from lower to upper; Dual-side at square frame is provided with groove symmetrically, and this groove cooperates with slide rail clamping on the side plate inner plate surface.Under the common leading role of via hole on slide rail and the valve pocket back cavity wall, the precision that slide block is done translation is higher.

Front-end face and the ear end face of dialling bolt on the above-mentioned shifting block are arc surface, and the center of two arc surfaces overlaps, and the radius of front-end face circular arc is greater than the radius of ear end face circular arc.Shifting block cooperates with slide block by forward and backward arc surface, the shifting block driving sliding block more flexibility and reliability of moving.

The place ahead in the anterior hinged place of above-mentioned shifting block is provided with spacing platform, this spacing platform be positioned at dial the bolt front-end face under.Spacing platform and slide block cooperate, and play position-limiting action, and only rotating to an angle when shifting block is clockwise rotated gets final product.

In order to help water shutoff, and prevent that rubber column from taking place loosening and come off, above-mentioned rubber column is a 3 stops stepped shape round column structure, and the maximum diameter section of rubber column is positioned at the cylindrical outside of slide block, and remaining part stretches in the counterbore of slide block cylindrical body correspondence.

Beneficial effect: the utility model is simple in structure, easy processing, and overall dimensions is less, the running flexibility and reliability, low production cost not only, and in small-sized water tank, install easily, dismantle easy to maintenance.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the plan view of valve body in the utility model.

Fig. 3 is the right elevation of Fig. 2.

Fig. 4 is the plan view of slide block in the utility model.

Fig. 5 is the right elevation of Fig. 4.

Fig. 6 is the plan view of shifting block in the utility model.

Fig. 7 is the worm's eye view of Fig. 6.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As Fig. 1, Fig. 2 and shown in Figure 3, offer water inlet A at the front-end face of valve body 1 backward along valve axis, be processed with screw thread on the excircle of valve body 1 leading portion, so that install.Be provided with the uncovered cuboid shape valve pocket C in upper end at the rear portion of valve body 1, separate by the ante-chamber wall 2 of valve pocket C between this valve pocket C and the water inlet A, and be communicated with by the water port 3 that ante-chamber wall 2 centers are offered.Internal surface at valve pocket C ante-chamber wall 2 offers annular groove 2a, and the outer surface of valve pocket C ante-chamber wall 2 is formed with annular boss 2b, and described annular boss 2b and annular groove 2a all are positioned at the periphery of water port 3.Be formed with water outlet 5 below valve pocket C diapire 4, the water outlet B that this water outlet 5 is offered by diapire 4 centers communicates with valve pocket C.Chamber, the both sides wall of valve pocket C extends back, and forms two blocks of left and right parallel side plates 6, and valve gap 7 is stamped in the top of biside plate 6 and valve pocket C, and this valve gap 7 is with the uncovered sealing of valve pocket C upper end.

From Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7 as can be known, the leading portion of slide block 12 is a cylindrical structure, and its axis offers counterbore 12a in the cylindrical body upper edge.Rubber column 13 is a 3 stops stepped shape round column structure, and the maximum diameter section of rubber column 13 is positioned at slide block 12 cylindrical outsides, and remaining part stretches among the counterbore 12a of slide block 12 cylindrical body correspondences.Described cylindrical body passes the back cavity wall 14 of valve pocket C, and the rubber column 13 that is embedded on the cylindrical body can seal up described water port 3.The rear portion of slide block 12 is a frame structure, is provided with groove 12b symmetrically at the dual-side of square frame, and each groove 12b cooperates with slide rail 15 clampings on respective side side plate 6 inner plate surfaces.The bottom of described two blocks of side plates 6 is anterior hinged by pin 8 and shifting block 9, shifting block 9 can rotate around pin 8, be formed with a group bolt 9a who upwarps in the front side of shifting block 9 hinged places, this group bolt 9a stretches in the square frame at slide block 12 rear portions from lower to upper, and front-end face and the ear end face of dialling bolt 9a are arc surface, the center of two arc surfaces overlaps, and the radius of front-end face circular arc is greater than the radius of ear end face circular arc.The place ahead in described shifting block 9 anterior hinged places is formed with spacing platform 9b, this spacing platform 9b be positioned at dial bolt 9a front-end face under.The rear end of described shifting block 9 is connected with the front end of valve rod 10, and the rear end of valve rod 10 and ball float 11 are fixing.

The utility model is except that rubber column 13, and remaining part is by the engineering plastics manufacturing; Valve body 1 and valve gap 7 are by the supersonic welder welding.

The utility model is work like this:

Ball float 11 floats on the interior liquid level of water tank when initial, and the liquid level in the water tank is in the setting liquid level, and the rubber column 13 on the slide block 12 does not communicate the water inlet A of valve body 1 and valve pocket C water port 3 sealings; After water tank discharges water, liquid level is lower than when setting liquid level, ball float 11 descends with liquid level, ball float 11 drives shifting block 9 by valve rod 10, shifting block 9 is clockwise rotated around pin 8 to turn an angle, when shifting block 9 rotates, dial 12 translations backward of bolt 9a driving sliding block, make the rubber column 13 on the slide block 12 leave water port 3, water port 3 is opened, the water inlet A and the valve pocket C of valve body are communicated with, and the water in the tank inlet pipe flows in the water tank successively by water inlet A, valve pocket C, water outlet B and the water outlet 5 of valve body; Continuous inflow along with water, liquid level raises gradually in the water tank, ball float 11 rises with liquid level, ball float 11 drives shifting block 9 by valve rod 10, make shifting block 9 rotate counterclockwise several angle, in the time of shifting block 9 rotations, dial 12 translations forward of bolt 9a driving sliding block around pin 8, liquid level in water tank reaches the setting liquid level, and the rubber column 13 on the slide block 12 is with water port 3 sealings.

Claims

1, a kind of small flow plastics float valve, comprise valve body (1), shifting block (9), valve rod (10) and ball float (11), wherein the rear end of shifting block (9) is connected with ball float (11) by valve rod (10), it is characterized in that: be provided with the uncovered valve pocket (C) in upper end at the rear portion of described valve body (1), there is water intake (A) in the place ahead of this valve pocket (C), separate by the ante-chamber wall (2) of valve pocket (C) between water intake (A) and the valve pocket (C), and be communicated with by the water port of offering on the ante-chamber wall (2) (3); Be provided with water outlet (5) in the below of described valve pocket (C) diapire (4), this water outlet (5) communicates with valve pocket (C) by the water outlet (B) on the diapire (4), chamber, the both sides wall of valve pocket (C) extends back, form two blocks of left and right parallel side plates (6), valve gap (7) is stamped in the top of biside plate (6) and valve pocket (C); The bottom of described biside plate (6) is anterior hinged by pin (8) and shifting block (9), be provided with a group bolt (9a) that upwarps in the front side of shifting block (9) hinged place, this group bolt (9a) cooperates with the rear portion clamping of slide block (12), the leading portion of described slide block (12) is a cylindrical structure, this cylindrical body passes the back cavity wall (14) of valve pocket (C), and the rubber column that is embedded in the cylindrical body (13) can seal up described water port (3).

2, small flow plastics float valve according to claim 1, it is characterized in that: the internal surface at described valve pocket (C) ante-chamber wall (2) offers annular groove (2a), the outer surface of valve pocket (C) ante-chamber wall (2) is formed with annular boss (2b), and described annular boss (2b) and annular groove (2a) all are positioned at the periphery of water port (3).

3, small flow plastics float valve according to claim 1, it is characterized in that: the rear portion of described slide block (12) is a frame structure, the bolt (9a) of dialling on the shifting block (9) stretches in this square frame from lower to upper, dual-side at square frame is symmetrical arranged fluted (12b), and this groove (12b) cooperates with slide rail (15) clamping on side plate (6) inner plate surface.

4, small flow plastics float valve according to claim 3, it is characterized in that: described shifting block (9) is gone up front-end face and the ear end face of dialling bolt (9a) and is arc surface, the center of two arc surfaces overlaps, and the radius of front-end face circular arc is greater than the radius of ear end face circular arc.

5, small flow plastics float valve according to claim 4 is characterized in that: the place ahead in the anterior hinged place of described shifting block (9) is provided with spacing platform (9b), this spacing platform (9b) be positioned at dial bolt (9a) front-end face under.

6, small flow plastics float valve according to claim 1, it is characterized in that: described rubber column (13) is a 3 stops stepped shape round column structure, the maximum diameter section of rubber column (13) is positioned at the cylindrical outside of slide block (12), and remaining part stretches in the counterbore (12a) of slide block (12) cylindrical body correspondence.