The utility model content
For solving the technical problem that exists in the prior art, the utility model provides a kind of flushing machine.This flushing machine has been realized relatively moving of the large sealing packing ring and second piston (or the small sealing ring on second piston) in drainage procedure.When large sealing packing ring is realized sealing, thereby second piston continues to move down and could contact at the bottom of the case to realizing that smooth draining gets ready, and drain function is stablized.
The technical scheme that the utility model adopted is: a kind of flushing machine is provided, comprises, a casing (1), this casing (1) have tank wall (1-1) and with (1-2) at the bottom of the case that this tank wall (1-1) is connected, (1-2) offers the delivery port that is used to connect flushing pipe at the bottom of case; One first piston (3), this first piston (3) can slide along tank wall (1-1) upper-lower seal in casing (1), and this first piston (3) is separated into upper chamber (1-3) and lower chambers (1-4) with the inner cavity chamber of casing (1)); One first piston loading spring (4), this first piston loading spring (4) apply elastic force to first piston (3) and are tending towards moving down to drive first piston (3); One second piston (5), this second piston (5) can slide up and down in casing (1), and this second piston (5) is positioned at the bottom of first piston (3) and the case between (1-2); One second piston loading spring (6), this second piston loading spring (6) are used for that second piston (5) is applied elastic force and are tending towards moving up to drive second piston (5); Second piston (5) each other is provided with movable sealing and is used for the big valve pocket (8) that seals with (1-2) at the bottom of the case, and valve pocket (8) is provided with large sealing packing ring (8-1) greatly; Between (1-2) an annular capacitor (1-5) is arranged at the bottom of big valve pocket (8), large sealing packing ring (8-1), second piston (5) and the case.
As the preferred version of the utility model, said big valve pocket (8) is around being arranged at second piston (5) bottom.
Preferred version as the utility model; At first piston (3) when moving down; And after large sealing packing ring (8-1) is realized sealing with (1-2) at the bottom of the case; Annular capacitor (1-5) is communicated with delivery port, and second piston (5) continues to move down under hydraulic action and realizes second piston (5) and (1-2) sealing at the bottom of the case.
As the preferred version of the utility model, the bottom of second piston (5) is provided with the small sealing ring (9-1) that is used for (1-2) sealing at the bottom of the case.
As the preferred version of the utility model, the inner chamber of said second piston (5) is provided with the little valve pocket (9) with second piston (5) split, and the side walls of this little valve pocket (9) is provided with the small sealing ring (9-1) that is used for (1-2) sealing at the bottom of the case.
As the preferred version of the utility model, between said second piston (5) and said big valve pocket (8), be provided with connector; When second piston (5) when moving up, said second piston (5) is realized interlock through this connector and big valve pocket (8).
As the preferred version of the utility model, said connector comprises first grab (8-2) of being located at said big valve pocket (8) inwall, and said second piston (5) is limited in this first grab (8-2) inboard.
Preferred version as the utility model; Said connector comprises first functional element (5-6) that is arranged on said second piston (5) and is arranged at second functional element (8-6) on the big valve pocket (8); First functional element (5-6) is a magnetic material with one of second functional element (8-6), and another is magnetic material or metal material.First functional element is inhaled to realize second piston (5) and big valve pocket (8) interlock with second functional element mutually.
As the preferred version of the utility model, said connector is spring (8-7,8-8), and an end of this spring (8-7,8-8) is fixed in second piston (5), and the other end is fixed in big valve pocket (8); Realize second piston (5) and big valve pocket (8) interlock through spring (8-7,8-8).
As the preferred version of the utility model, connector comprises the 3rd grab (5-1) of being located at said second piston (5), and said big valve pocket (8) cooperates with the 3rd grab (5-1) and is limited in the inboard or outside of the 3rd grab (5-1).
The technical scheme of the utility model is with respect to prior art, and the beneficial effect of obtaining is:
(1) the described flushing machine of the utility model, the second piston periphery wall is provided with big valve pocket, and big valve pocket is provided with large sealing packing ring; Move down at first piston, when realizing sealing at the bottom of large sealing packing ring and the case, annular capacitor still is communicated with delivery port, and the water in the annular capacitor continues to discharge through delivery port; Second piston receives hydraulic action to continue to move down just, and realization seals with at the bottom of the case.In this course; Reduced large sealing packing ring and other black boies (like second piston or the small sealing ring) correlation degree on rerum natura; The hardness of large sealing packing ring and small sealing ring and the margin of tolerance of elastic force are required to reduce greatly; Thereby reduced the manufacturing and the inspection cost of part, improved the mechanism stability ability.
(2) when the described flushing machine draining of the utility model; In order to realize the interlock between second piston and the big valve pocket; Between second piston and big valve pocket, be provided with connector (like grab, magnetic element, stage clip and extension spring etc.), further strengthened the stability of flushing machine.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the part of the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is that the described flushing machine of the utility model is in the generalized section under the original state;
Fig. 2 is an A part enlarged diagram shown in Figure 1;
Fig. 3 is a B part enlarged diagram shown in Figure 1;
Fig. 4 is that the described flushing machine of the utility model is in the sketch map under water into and the done state;
Fig. 5 is the view of the described control valve of the utility model when being raised;
Fig. 6 is that the described flushing machine of the utility model is in the hull-borne sketch map;
Fig. 7 is the first embodiment sketch map that the described flushing machine of the utility model is provided with connector;
Fig. 8 is a C part enlarged diagram shown in Figure 7;
Fig. 9 is the second embodiment sketch map that the described flushing machine of the utility model is provided with connector;
Figure 10 is a D part enlarged diagram shown in Figure 9;
The described flushing machine of Figure 11 the utility model is provided with the 3rd embodiment sketch map of connector;
The described flushing machine of Figure 12 the utility model is provided with the 3rd embodiment sketch map of connector.
The drawing reference numeral explanation:
1 casing, 7 control valves
1-tank wall 8 big valve pockets
8-1 large sealing packing ring at the bottom of the 1-2 case
The 8-2 of 1-3 upper chamber first grab
1-4 lower chambers 8-3 second grab
1-5 annular capacitor 8-6 second functional element
2 guide rod 8-7 extension springs
3 first piston 8-8 stage clips
4 first piston loading springs, 9 little valve pockets
5 second piston 9-1 small sealing rings
5-1 the 3rd grab 9-2 convex edge
5-3 first seal 10 water level elements
The 5-4 second seal 5-5 the 3rd seal
5-6 first functional element
6 second piston loading springs
The specific embodiment
In order to make the utility model technical problem to be solved, technical scheme and beneficial effect is clearer, understand,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, the described flushing machine of the utility model comprises casing 1, guide rod 2, first piston 3, first piston loading spring 4; Wherein, Casing 1 has 1-2 at the bottom of interconnective tank wall 1-1 and the case; 1-2 is one-body molded or fuse at the bottom of tank wall 1-1 and the case; This tank wall 1-1 limits the column construction around an axis, and preferably this axis is the center line of casing 1, at the bottom of case 1-2 around this axis offer one be used to connect the flushing pipe (not shown) delivery port; Guide rod 2 is fixing vertically in casing 1 along said axis, and guide rod 2 comprises screw rod and sleeve pipe, and screw rod longitudinally is arranged in the casing 1 with the central lines ground of casing 1, axial screw of sleeve pipe qualification, and screw rod can screw in this axial screw; First piston 3 can seal slip along said axis direction on guide rod 2, and this first piston 3 is separated into a 1-3 of upper chamber and a lower chambers 1-4 with the inner cavity chamber of casing 1,1-2 at the bottom of the lower chambers 1-4 contact case, and the 1-3 of upper chamber is then relative with lower chambers 1-4.First piston 3 is formed by connecting on piston top and piston base; Piston top extends upward and is the hollow cylindrical structure along said axis direction; Piston top is installed on the outer wall of guide rod 2; The external diameter of piston base is slightly less than the internal diameter of tank wall 1-1, and piston base can be slided along the inwall upper-lower seal of tank wall 1-1; First piston loading spring 4 is installed around guide rod 2, and applies elastic force to first piston 3 and be tending towards moving down to drive first piston 3, thereby dwindles the volume of lower chambers 1-4 and enlarge the volume of the 1-3 of upper chamber.
As shown in Figure 1, the described flushing machine of the utility model also comprises second piston 5, the second piston loading spring 6, control valve 7; Second piston 5 can seal slip along axis direction on guide rod 2; This second piston 5 is at the bottom of first piston 3 and the case between the 1-2; Second piston 5 comprises piston top and piston base equally; Piston top is the cylindrical structural of hollow and is sheathed on the periphery wall of guide rod 2, and piston base seals slip along axis direction on guide rod 2; The second piston loading spring 6 is installed around said guide rod 2, and is used for that second piston 5 is applied elastic force and is tending towards moving up to drive second piston 5; 7 of control valves are used to control the direction of inlet pipeline water inlet.
Like Fig. 1, Fig. 2, shown in Figure 3; Be provided with around second piston, 5 bottoms and be used for the big valve pocket 8 that seals with 1-2 at the bottom of the case; Second piston 5 and big valve pocket 8 mutual movable sealings; The bottom of big valve pocket 8 is provided with large sealing packing ring 8-1, between the 1-2 an annular capacitor 1-5 is arranged at the bottom of big valve pocket 8, large sealing packing ring 8-1, second piston 5 and the case.
In order to guarantee sealing performance, second piston, 5 bottom periphery are provided with the first seal 5-3 with big valve pocket 8 contacts site, are provided with the second seal 5-4 in second piston, 5 bottom periphery and said little valve pocket 9 contacts site; When the described flushing machine of the utility model needs draining; Control valve 7 is with annular capacitor 1-5 and lower chambers 1-4 or the more water source connection of High Voltage; Under the effect of the spring force of the second piston loading spring 6 and hydraulic pressure, second piston up moves, and realizes opening water discharge.In the drainage procedure, first piston 3 moves down, and first piston 3 contacts with big valve pocket 8.Receive the effect of the second piston loading spring 6, second piston 5 moves to the upper position-arresting with respect to big valve pocket 8.First piston 3 continues descending, and 1-2 realizes sealing at the bottom of large sealing packing ring 8-1 and the case, and this moment, second piston 5 was not also realized and 1-1 sealing at the bottom of the case, and annular capacitor 1-5 is communicated with delivery port, the delivery port discharge of can flowing through smoothly of the water among the capacitor 1-5.Then, second piston 5 receives hydraulic action to continue to move down and realizes that second piston 5 and 1-2 at the bottom of the case seal.
Because it is lower than the sealing performance of large sealing packing ring 8-1 that the sealing performance of second piston 5 requires, therefore, second piston 5 directly seals with 1-2 at the bottom of the case, also can realize the water inlet and the draining of the described flushing machine of the utility model.In order to strengthen the sealing of second piston 5 and 1-2 at the bottom of the case, second piston, 5 side walls are provided with the small sealing ring 9-1 that is used for 1-2 sealing at the bottom of the case.
As another program, the inner chamber of second piston 5 is provided with the little valve pocket 9 with 5 splits of second piston, that is to say on the inboard split type ground of second piston 5 a little valve pocket 9 is set separately.Small sealing ring 9-1 is arranged on the side walls of little valve pocket 9, is used for and 1-2 sealing at the bottom of the case.
Like Fig. 1, shown in Figure 3, in order to realize the interlock between the little valve pocket 9 and second piston 5, little valve pocket 9 is fastening to be connected in second piston 5.When big valve pocket 8 realizes and 1-2 realization sealing at the bottom of the case that when second piston 5 continued to move down, second piston 5 drove little valve pocket 9 and moves down, thereby realizes the interlock between the little valve pocket 9 and second piston 5.In order to realize the sealing of little valve pocket 9 and second piston, 5 inwalls, be provided with the 3rd seal 5-5 between the little valve pocket 9 and second piston 5.Naturally, the little valve pocket 9 and second piston 5 can be set as interference fit or be clasped, thereby realize sealing and fastening.
Adopt said structure, the water among the annular capacitor 1-5 of casing 1 is drained, avoid containing in the annular capacitor 1-5 big hydraulic pressure, destroy sealing performance.Simultaneously, lower to the relative tolerance requirement of hardness between large sealing packing ring 8-1 and the small sealing ring 9-1 and elastic force, improved the stability of function, and the described flushing machine of the utility model is prolonged application life.
Water inlet, the drainage procedure of the said flushing machine of the utility model are described below in conjunction with accompanying drawing 1 to Fig. 6.
As shown in Figure 1, show flushing machine and be in original state.Under this state; First piston 3 is positioned at 1-2 at the bottom of the case of casing 1 owing to the elastic force effect that receives self gravitation and first piston loading spring 4; Though the elastic force that second piston 5 is made progress by the second piston loading spring 6; But receive self gravitation and first piston 3 to its downward pressure simultaneously, second piston 5 also is positioned at 1-2 at the bottom of the case of casing 1, and first piston 3 is positioned on second piston 5.In addition, annular capacitor 1-5 and lower chambers 1-4 are by large sealing packing ring 8-1 seal, and annular capacitor 1-5 is communicated with delivery port, and annular capacitor 1-5 air pressure inside equals outside air air pressure.
As shown in Figure 4, show flushing machine and be in the sketch map under water into and the done state.Part current get into the lower chambers 1-4 of casing 1 along water inlet pipe with a direction shown in scheme, and another part current are along the trap of filling pipe with the b direction entering toilet shown in scheming.When the water level storage of the lower chambers 1-4 of casing 1 was full, first piston 3 had moved up and has reached the extreme higher position, and first piston 3 contacts are positioned at the water level element 10 on the casing 1, and this moment, casing 1 water storage finished.Second piston 5 continues the certain distance that moves down owing to receiving bigger hydraulic action (elastic force that hydraulic pressure makes progress greater than the second piston loading spring 6), and small sealing ring 9-1 makes annular capacitor 1-5 and the sealing of the following mouth of a river.
As shown in Figure 5, the view when showing control valve 7 unlatchings.Control valve 7 is opened, and at this moment, the water storage among the lower chambers 1-4 then gets into annular capacitor 1-5 along the c direction shown in the figure, thereby lower chambers 1-4 has realized being communicated with annular capacitor 1-5.
As shown in Figure 6, show flushing machine and be in hull-borne.Under this state, because second piston 5 receives making a concerted effort that hydraulic pressure and the second piston loading spring 6 make progress, second piston 5 moves up, and big valve pocket 8 is along with 5 interlocks of second piston, and the water in the lower chambers 1-4 is discharged from.Along with the discharge of water among the lower chambers 1-4, first piston loading spring 4 promotes first piston 3 downwards.First piston 3 continues to move down, and first piston 3 contacts earlier with big valve pocket 8.Receive the effect of the second piston loading spring 6, second piston 5 moves with respect to big valve pocket 8 and is in upper position-arresting.First piston 3 continues descending; 1-2 realizes sealing at the bottom of large sealing packing ring 8-1 and the case; And this moment, second piston 5 was not also realized and 1-1 sealing at the bottom of the case, and the water among the annular capacitor 1-5 can get into delivery port smoothly and discharge, and avoids making annular capacitor 1-5 have big hydraulic pressure to destroy the sealing performance of large sealing packing ring 8-1 and small sealing ring 9-1 owing to containing water among the annular capacitor 1-5; And realized draining as far as possible water storage, strengthened the stability of flushing machine.
As stated, realize between the bottom of second piston 5 and the big valve pocket 8 that interlock is the frictional force through between the two, and the interaction of hydraulic pressure, elastic force etc. realizes.In order to realize the interlock between second piston 5 and the big valve pocket 8 better, be provided with connector between second piston 5 and the big valve pocket 8; When second piston 5 moved up, second piston 5 was realized interlock through this connector and big valve pocket 8.
Like Fig. 7, shown in Figure 8, show first embodiment of connector.This connector comprises the first grab 8-2 of the annular of being located at big valve pocket 8 inwalls, and it is inboard that second piston 5 is limited in this first grab 8-2.When the flushing machine draining, the force action that second piston 5 is made progress by the hydraulic pressure and the second piston loading spring moves up, and big valve pocket 8 receives the effect of the first grab 8-2 to follow second piston 5 to move up, and the water in the lower chambers 1-4 is discharged from.Along with the discharge of water among the lower chambers 1-4, first piston loading spring 4 promotes first piston 3 downwards.First piston 3 continues to move down, and first piston 3 contacts earlier with big valve pocket 8.Receive the effect of the second piston loading spring 6, second piston 5 moves up with respect to big valve pocket 8 and is in upper position-arresting.First piston 3 continues descending, and 1-2 preferentially realizes sealing at the bottom of large sealing packing ring 8-1 and the case.Meanwhile second piston 5 is owing to receive the effect of the second piston loading spring 6 also not realize sealing with 1-1 at the bottom of the case; Water among the annular capacitor 1-5 can get into delivery port smoothly and discharge; Avoid making annular capacitor 1-5 have big hydraulic pressure to destroy the sealing performance of large sealing packing ring 8-1 and small sealing ring 9-1, and realized draining as far as possible water storage owing to containing water among the annular capacitor 1-5.In the water inlet process, second piston 5 receives hydraulic action to continue downwards to move, and realizes the sealing of second piston 5 and (1-2) at the bottom of the case, thereby has strengthened the stability of flushing machine.
Like Fig. 9, shown in Figure 10, show second embodiment of connector.This connector comprises and is arranged at the first functional element 5-6 on second piston 5 and is arranged at the second functional element 8-6 on the big valve pocket 8 that the first functional element 5-6 inhales to realize second piston 5 and big valve pocket 8 interlocks with the second functional element 8-6 mutually.The first functional element 5-6 can be two elements that all have magnetic material that heteropole is inhaled mutually with the second functional element 8-6, also can be that one of them is the element that has magnetic material, and another is a hardware.When the flushing machine draining, the force action that second piston 5 is made progress by the hydraulic pressure and the second piston loading spring moves up, and big valve pocket 8 receives the effect of magnetic attraction to follow second piston 5 to move up, and the water in the lower chambers 1-4 is discharged from.Along with the discharge of water among the lower chambers 1-4, first piston loading spring 4 promotes first piston 3 downwards.First piston 3 continues to move down, and first piston 3 contacts earlier with big valve pocket 8.Receive the effect of the second piston loading spring 6, second piston 5 moves up with respect to big valve pocket 8 and is in upper position-arresting.First piston 3 continues descending, and 1-2 preferentially realizes sealing at the bottom of large sealing packing ring 8-1 and the case.Meanwhile second piston 5 receives the effect of the second piston loading spring 6 to overcome magnetic attraction so that also do not realize sealing with 1-1 at the bottom of the case; Water among the annular capacitor 1-5 can get into delivery port smoothly and discharge; Avoid making annular capacitor 1-5 have big hydraulic pressure to destroy the sealing performance of large sealing packing ring 8-1 and small sealing ring 9-1, and realized draining as far as possible water storage owing to containing water among the annular capacitor 1-5.In the water inlet process, second piston 5 receives hydraulic action to continue downwards to move, and realizes the sealing of second piston 5 and (1-2) at the bottom of the case, thereby has strengthened the stability of flushing machine.
Shown in figure 11, show the 3rd embodiment of connector.Connector is an extension spring 8-7, and the end of this extension spring 8-7 is fixed in the lower surface of second piston 5, and the other end of this extension spring 8-7 is fixed in the upper surface of big valve pocket 8; Second piston 5 moves up and realizes and the interlock of valve pocket 8 greatly through extension spring 8-7.Shown in figure 12, show the 4th embodiment of connector.Connector is a stage clip 8-8, and the end of this stage clip 8-8 is fixed in the upper surface of second piston 5, and the other end of this stage clip 8-8 is fixed in the lower surface of big valve pocket 8; Second piston 5 moves up and realizes and the interlock of valve pocket 8 greatly through stage clip 8-8.
As previously mentioned, no matter extension spring 8-7 still is stage clip 8-8, and the end of this spring 8-7 or 8-8 is fixed in second piston 5, and the other end is fixed in big valve pocket 8; Realize second piston 5 and big valve pocket 8 interlocks through spring 8-7 or 8-8.
As shown in Figure 2, show the 5th embodiment of connector.This connector comprises the 3rd grab 5-1 that is located at said second piston 5, big valve pocket 8 cooperates with the 3rd grab 5-1 and be limited in the 3rd grab (5-1) inboard perhaps outside.
By on can know that among the first, the 5th embodiment of connector, the first grab 8-2, the 3rd grab 5-1 are processed by plastics or organic material, therefore certain elastic deformation is arranged.Therefore, among all embodiment of connector, the interlock between second piston 5 and the big valve pocket 8 has been protected second piston 5 and big valve pocket 8 through flexibly connecting thereby be effective in, and has prolonged application life between the two, has improved the mechanism stability ability.
Above-mentioned explanation has illustrated and has described the preferred embodiment of the utility model; As previously mentioned; Be to be understood that the utility model is not limited to the form that this paper discloses, should do not regard eliminating as, and can be used for various other combinations, modification and environment other embodiment; And can in utility model contemplated scope described herein, change through the technology or the knowledge of above-mentioned instruction or association area.And change that those skilled in the art carried out and variation do not break away from the spirit and the scope of the utility model, then all should be in the protection domain of the utility model accompanying claims.