CN212213679U - Adjustable water pressure dish washer spray arm - Google Patents
Adjustable water pressure dish washer spray arm Download PDFInfo
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- CN212213679U CN212213679U CN201922177918.4U CN201922177918U CN212213679U CN 212213679 U CN212213679 U CN 212213679U CN 201922177918 U CN201922177918 U CN 201922177918U CN 212213679 U CN212213679 U CN 212213679U
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Abstract
The utility model discloses an adjustable water pressure dish washer spray arm, which comprises a housin, the casing sets up water inlet and a plurality of hole that sprays, and rivers are followed the water inlet gets into follow behind the spray arm spray hole blowout still includes valve mechanism, valve mechanism includes drive assembly and manger plate subassembly, the manger plate subassembly set up in the casing, drive assembly certainly extend to in the casing outside the casing, drive assembly drives the manger plate subassembly for the water inlet activity is for open or the part covers the water inlet, the manger plate subassembly is through sheltering from the area of water inlet to the regulation sprays the play water pressure in hole. The utility model discloses an adjustable water pressure dish washer spray arm, expand the kind of washing article, upgrade the cleaning function, through the pivot of adjusting the drive assembly, with the thick material such as high pressure cleaning porcelain matter tableware, be difficult for the object that breaks by washing; the low-pressure washing machine can be used for washing objects such as plastic tableware, strawberries, blueberries and the like which are easy to wash away and damage.
Description
Technical Field
The utility model relates to a spray arm, concretely relates to adjustable water pressure spray arm.
Background
Along with the continuous improvement of living standard of people, the dish washing machine starts to slowly enter the kitchens of general consumers to realize the liberation of the hands of people, so that people do not need to wash dishes after meals, and the dish washing machine has more time for leisure, work and the like.
With the gradual expansion of the market of the dish washing machine, the types and the effects of the washing are the key points of attention of the vast consumers. The flow rate of the water flow sprayed by the spray arm determines the pressure of the spray water flow and the rotating speed of the spray arm. These two points are closely related to the cleaning effect. Aiming at common porcelain tableware, high-pressure water flow jet at a certain rotating speed is preferably selected, so that the cleaning effect on pollutants is better; aiming at the tableware with lighter material, the combination of properly reducing the injection pressure and the rotating speed is selected, so that the cleaning effect is ensured on one hand, and the cleaning effect is not influenced by the fact that the light tableware is not washed down on the other hand. Therefore, the flow-adjustable structure designed for the spray arm can realize the switching of high-pressure and low-pressure water jet.
The existing supercharging type pulse cleaning equipment comprises a spraying arm which is rotatably connected to the bottom of a washing space of a dish washing machine, wherein a plurality of spraying structures are arranged on the spraying arm, a plurality of gradual water outlet channels for increasing water outlet pressure are arranged on the spraying structures, and pulse water flow is formed by changing the number of the water outlet channels and the sequence of the water outlet channels through shielding. But the structure is complex, and the spraying structure is sensitive to residues and is easy to block.
Disclosure of Invention
The purpose of the invention is as follows: an object of the utility model is to provide an adjustable water pressure dish washer spray arm to prior art not enough.
The technical scheme is as follows: an adjustable water pressure dish washer spray arm, which comprises a housin, the casing sets up water inlet and a plurality of holes that spray, rivers are followed the water inlet gets into follow behind the spray arm spray the hole blowout, still include valve mechanism, valve mechanism includes drive assembly and manger plate subassembly, the manger plate subassembly set up in the casing, drive assembly certainly extend to in the casing outside the casing, drive assembly drives the manger plate subassembly for the water inlet activity is for open or the part covers the water inlet, the manger plate subassembly is through sheltering from the area of water inlet to adjust the play water pressure that sprays the hole.
The pivot with the water inlet sets up with one heart, be equipped with the drive in the pivot the drive division of manger plate subassembly, the drive division drive the manger plate subassembly is opened or the part covers the water inlet, the drive division includes drive gear or drive tooth, the manger plate subassembly can set up in the side of water inlet, and drive assembly drive manger plate subassembly is opened or the part covers the water inlet.
The driving assembly comprises a rotating shaft provided with a driving gear, the water retaining assembly is provided with a blocking piece and a gear bar matched with the driving gear, and the driving gear drives the gear bar to move along a straight line so as to drive the blocking piece to open or partially shield the water inlet.
The spraying arm is provided with a longitudinal limiting structure and a transverse limiting structure;
the transverse limiting structure limits the water retaining assembly to cover a first position with the largest area of the water inlet and a second position with the smallest area of the water inlet;
the longitudinal limiting structure limits the water retaining assembly to be attached to the water inlet to move.
The transverse limiting structure comprises a convex structure arranged on the side wall of the knob, and a low-pressure positioning rib and a high-pressure positioning rib which are arranged on the outer surface of the shell and correspond to the convex structure; or
The transverse limiting structure comprises a low-pressure positioning cover arranged on the inner wall of the shell, and the low-pressure positioning cover can abut against the end part of one side of the water retaining assembly;
the longitudinal limiting structure comprises limiting grooves arranged on two sides of the water inlet, and the water retaining component is movably embedded in the limiting grooves.
The driving assembly comprises a rotating shaft provided with driving teeth, a separation blade and a fluted disc matched with the driving teeth are arranged on the water retaining assembly, and the driving teeth drive the fluted disc to rotate so as to drive the separation blade to swing to open or partially shield the water inlet.
The spray arm is provided with a swing opening limiting structure and a swing closing limiting structure;
one end of the separation blade is connected with the fluted disc, and the other end of the separation blade swings around the axis of the fluted disc;
the swing opening limiting structure limits the other end of the baffle to swing to a first position where the area of the water inlet is the largest;
the swing closing limiting structure limits the other end of the baffle to swing to a second position where the area of the water inlet is the smallest.
The fluted disc in the water inlet axle center symmetry is equipped with a plurality ofly, the separation blade is the arc sheet structure with water inlet profile looks adaptation under the second position, it is a plurality of the separation blade amalgamation is spacing, and is a plurality of be formed with after the separation blade amalgamation with the concentric central through-hole of water inlet, central through-hole area is less than the water inlet.
The valve mechanism further comprises an opening and closing assembly, the opening and closing assembly comprises a blocking cover and a connecting rod, a compensation hole is further formed in the shell, and the driving assembly drives the connecting rod to enable the blocking cover to open or close the compensation hole.
The opening and closing assembly is arranged inside or outside the shell, and under the condition that the opening and closing assembly is arranged outside the shell, the cover opens and closes the compensation hole on the outer surface of the shell.
The driving assembly is provided with a swing rod extending in the radial direction, the extending tail end of the swing rod is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the blocking cover.
The shell is provided with a guide groove located at the position of the compensation hole, the connecting rod is driven by the swing rod to push the blocking cover to slide in the guide groove, and the blocking cover is provided with a first position for opening the compensation hole and a second position for closing the compensation hole in the guide groove. .
Has the advantages that: the utility model provides an adjustable water pressure dish washer spray arm, set up valve mechanism in the casing of spray arm, valve mechanism includes drive assembly, the manger plate subassembly, drive assembly includes the pivot that sets up with the water inlet is concentric, the pivot is established the outer end and is equipped with the knob, the pivot still is equipped with the drive division of drive manger plate subassembly, to the manger plate subassembly of different forms, the drive division can be drive gear or drive the tooth, the drive division drives the manger plate subassembly and opens or partly covers the water inlet, in order to adjust the inside water pressure of casing, realize the high-low pressure cleaning performance of spray arm when wasing article, enlarge the kind of wasing article, upgrade the cleaning function, through adjusting the pivot of drive assembly, with the thick and solid of materials such as high pressure washing porcelain matter tableware, the object that is difficult for; cleaning objects such as plastic tableware, milk bottles, nipples, strawberries, blueberries and the like which are easy to be washed away and damaged by washing with low pressure;
the driving component is a rotating shaft provided with a driving gear, correspondingly, the water retaining component comprises a blocking piece and a gear strip matched with the driving gear, the blocking piece is connected to the gear strip, when the rotating shaft is rotated, the driving gear rotates simultaneously to drive the gear strip meshed with the driving gear to move along a straight line, so as to drive the blocking piece to move to change the area of the water inlet, the gear-rack meshing controls the water retaining component to move, the water retaining component is convenient and reliable, in order to prevent the water retaining component from displacing under the impact of water flow, a limiting mechanism for limiting the position of the water retaining component is also arranged, the limiting mechanism comprises a longitudinal limiting structure and a transverse limiting structure, when water flow passes through the water inlet from bottom to top, upward pressure is applied to the lower surface of the blocking piece, the gear strip of the blocking piece is tightly pressed with the driving gear, the locking of the gear-rack is realized, the blocking piece is limited above the water inlet to move and is always attached to the water inlet to move, and the longitudinal limiting structure also limits the blocking piece to a first position with the largest area of the water inlet and a second position with the smallest area of the water inlet, so that the assembly moves along a straight line, the driving gear and the gear strip are always in meshing transmission, and the driving gear and the gear strip are prevented from tripping and clamping the shell;
the driving assembly is a rotating shaft provided with driving teeth, correspondingly, the water retaining assembly comprises a separation blade and a fluted disc matched with the driving teeth, the separation blade is connected to the fluted disc, when the driving teeth drive the fluted disc to rotate, the fluted disc drives the separation blade to swing to open or partially shield the water inlet to change the area of the water inlet, the shell is internally provided with a swing opening limiting structure and a swing closing limiting structure, the rotating angle of the separation blade is limited, the phenomenon that the separation blade excessively rotates in the shell is avoided, the separation blade swings between a first position with the largest area of the water inlet and a first position with the largest area is limited, for better improving the water retaining effect of the separation blade, the fluted disc is symmetrically arranged on the axis of the water inlet, the separation blade is an arc-shaped sheet-shaped structure matched with the outline of the water inlet, in a second position, the separation blades are spliced and limited, and a central through hole concentric with the, the design of splicing the plurality of baffle plates effectively avoids the displacement of the baffle plates under the impact of water flow;
the valve mechanism also comprises an opening and closing component arranged in the water passing cavity, the opening and closing component can simultaneously adjust the water outlet pressure and the rotating speed of the spray arm, the opening and closing component is arranged in the shell, food residues are not easily adhered to the opening and closing component, the compensation hole is controlled through the opening and closing component, and the effect of changing the rotating speed of the spray arm is further achieved, the opening and closing component comprises a baffle cover and a connecting rod, a radially extending swing rod is arranged on the driving component, the extending tail end of the swing rod is hinged with one end of the connecting rod, the other end of the connecting rod is hinged with the baffle cover, the swing rod also rotates when the rotating shaft is rotated, the rotating swing rod pushes and pulls the connecting rod to move, so that the position of the baffle cover is changed, and a guide groove positioned at the compensation hole is also arranged on the inner wall of the shell, the blocking cover moves more smoothly to avoid clamping the shell;
the opening and closing component and the water retaining component can be respectively and independently arranged in the spray arm or simultaneously arranged in the spray arm, when the opening and closing component and the water retaining component coexist, the driving component drives the water retaining component to cover the water inlet, the opening and closing component opens the compensation hole, when the driving component drives the water retaining component to open the water inlet, the opening and closing component closes the compensation hole, the opening and closing of the compensation hole has little effect difference for adjusting the water outlet pressure of the spray hole, the rotation speed of the spray arm is mainly reflected in that the change of the rotation speed of the spray arm is realized, the water flow cleaning effect acted on the surface of an object to be cleaned is related to the water outlet pressure of the spray hole and the instantaneous length of the water outlet of the spray hole staying at each point on the surface of the object, so that the jet flow direction of the compensation hole has an included angle with the rotation plane of the spray arm, and the compensation hole has the functions of adjusting the, when adjusting drive assembly control manger plate subassembly and heightening and spray the hole water pressure, open and close the subassembly and close the compensation hole, spray the hole and go out water pressure and increase, reduce and spray the arm rotational speed and strengthen and wash, adjust drive assembly control manger plate subassembly and reduce when spraying the hole water pressure, open and close the subassembly and open the compensation hole, spray the hole and go out water pressure and reduce, improve and spray the arm rotational speed and softly protect and wash.
Drawings
Fig. 1 is an explosion schematic view of a spray arm according to embodiment 1 of the present invention;
fig. 2 is a schematic top perspective view of a spray arm according to embodiment 1 of the present invention;
fig. 3 is a schematic longitudinal sectional view of a spray arm according to embodiment 1 of the present invention;
fig. 4 is a schematic longitudinal sectional view of a baffle of a spray arm in a second position according to embodiment 1 of the present invention;
fig. 5 is a schematic longitudinal sectional view of a baffle of a spray arm in a first position according to embodiment 1 of the present invention;
fig. 6 is a schematic view of a sealing cover of a spray arm according to embodiment 1 of the present invention;
fig. 7 is a schematic cross-sectional view of a spray arm of embodiment 1 of the present invention with a portion of the upper housing body removed;
fig. 8 is a schematic top perspective view of a spray arm according to embodiment 2 of the present invention;
fig. 9 is an exploded schematic view of a spray arm according to embodiment 2 of the present invention;
fig. 10 is a schematic view of the spray arm of embodiment 2 of the present invention with the separation blade of the upper housing body removed in the first position;
fig. 11 is a schematic view of the spray arm of embodiment 2 of the present invention with the separation blade of the upper housing body removed in the second position;
fig. 12 is a schematic top view of a spray arm according to embodiment 3 of the present invention;
fig. 13 is a schematic view illustrating the opening of a sealing cover of a spray arm according to embodiment 3 of the present invention;
fig. 14 is an exploded view of the inner structure of a spray arm according to embodiment 3 of the present invention;
fig. 15 is a partial cross-sectional view of a drive assembly of a spray arm in accordance with embodiment 3 of the present invention;
fig. 16 is a schematic view of a half-section structure of a spray arm in a top view according to embodiment 3 of the present invention;
fig. 17 is a schematic view of a bottom half-section structure of a spray arm in embodiment 3 of the present invention;
fig. 18 is a top view of the spray arm water stop assembly opening water inlet in embodiment 3 of the present invention;
figure 19 is the utility model discloses embodiment 3 spray arm manger plate subassembly opens water inlet bottom view.
Detailed Description
The technical solution of the present invention is explained in detail below, but the scope of protection of the present invention is not limited to the embodiments.
As shown in fig. 1-19, the spray arm of the dishwasher with adjustable water pressure of the present invention comprises a housing 100 forming a water passing cavity, the housing 100 is provided with a water inlet 110 and a plurality of spray holes 120, and water flows from the water inlet 110 into the water passing cavity and is sprayed out from the spray holes 120, and further comprises a valve mechanism, the valve mechanism comprises a driving component and a water retaining component, the water retaining component is disposed in the housing 100 and located at the water inlet 110, the driving component penetrates the housing 100 from the water passing cavity, the driving component comprises a rotating shaft 220 concentrically disposed with the water inlet 110, the rotating shaft 220 is provided with a driving portion for driving the water retaining component, the driving portion can be a driving gear 221 or a driving tooth 2211, the driving portion drives the water retaining component to move relative to the water inlet 110 so as to open or partially cover the water inlet 110, the water retaining component shields the area of the water inlet 110 so as to adjust the 120 water, the valve mechanism is arranged in the shell 100 of the spray arm, the valve mechanism comprises a driving component and a water retaining component, the driving component comprises a rotating shaft 220 which is concentrically arranged with the water inlet 110, the water retaining component can be arranged at the side of the water inlet 110 to reduce the impact influence of water flow on the water retaining component, the driving component drives the water retaining component to open or partially cover the water inlet 110, the rotating shaft 220 is provided with a knob 210 at the outer end, the rotating shaft 220 is also provided with a driving part for driving the water retaining component, aiming at different forms of water retaining components, the driving part can be a driving gear 221 or a driving tooth 2211, the driving part drives the water retaining component to open or partially cover the water inlet 110 to adjust the water pressure in the shell 100, the high-low pressure cleaning effect of the spray arm when cleaning objects is realized, the types of the cleaning objects are enlarged, the cleaning function is upgraded, the materials such as porcelain tableware are, objects which are not easy to be damaged by washing; the low-pressure washing machine can be used for washing objects such as plastic tableware, milk bottles, nipples, strawberries, blueberries and the like which are easy to wash away and damage.
The driving assembly comprises a rotating shaft 220 provided with a driving gear 221, the water retaining assembly is provided with a blocking piece 232 and a gear bar 231 matched with the driving gear 221, the driving gear 221 drives the gear bar 231 to move along a straight line so as to drive the blocking piece 232 to open or partially shield the water inlet 110, the spray arm is provided with a longitudinal limiting structure and a transverse limiting structure, the transverse limiting structure limits the water retaining assembly to cover a first position with the largest area of the water inlet 110 and a second position with the smallest area of the water inlet 110, the longitudinal limiting structure limits the water retaining assembly to be attached to the water inlet 110 to move, the transverse limiting structure comprises a protruding structure 211 arranged on the side wall of the knob 210, and a low-pressure positioning rib 141 and a high-pressure positioning rib 142 which are arranged on the outer; or the transverse limiting structure comprises a low-pressure positioning cover 250 arranged on the inner wall of the shell, and the low-pressure positioning cover 250 can be abutted against the end part of one side of the water retaining component; the longitudinal limiting structure comprises limiting grooves 151 and 152 arranged at two sides of the water inlet 110, the water retaining component is movably embedded in the limiting grooves 151 and 152, the driving component is a rotating shaft 220 provided with a driving gear 221, correspondingly, the water retaining component comprises a blocking piece 232 and a gear strip 231 matched with the driving gear 221, the blocking piece 232 is connected to the gear strip 231, when the rotating shaft 220 is rotated, the driving gear 221 simultaneously rotates to drive the gear strip 231 meshed with the driving gear to linearly move so as to drive the blocking piece 232 to move to change the area of the water inlet 110, the gear-rack meshing controls the movement of the water retaining component, the water retaining component is convenient and reliable, in order to prevent the water retaining component from generating displacement under the impact of water flow, a limiting mechanism used for limiting the position of the water retaining component is further arranged, the limiting mechanism comprises a longitudinal limiting structure and a transverse limiting structure, when the water flow passes through the water inlet 110 from bottom to top, an upward, make the rack 231 of separation blade 232 compress tightly with drive gear 221, realize the locking of gear ~ rack, separation blade 232 edge and spacing groove 151, 152 simultaneously, avoid rivers to promote drive gear 221 and rotate, and remove separation blade 232 restriction in water inlet 110 top, make it laminate water inlet 110 all the time and remove, vertical limit structure still restricts separation blade 232 and inject the biggest primary importance of water inlet 100 area and the minimum secondary position subassembly of its area along rectilinear movement, make drive gear 221 and rack 231 mesh transmission all the time, prevent that it from tripping the card shell.
The driving assembly comprises a rotating shaft provided with driving teeth 2211, the water retaining assembly is provided with a baffle 232 and a fluted disc 2311 matched with the driving teeth 2211, the driving teeth 2211 drive the fluted disc 2311 to rotate so as to drive the baffle 232 to swing to open or partially shield the water inlet 110, and the spray arm is provided with a swing opening limiting structure and a swing closing limiting structure; one end of the blocking piece 232 is connected with the fluted disc 2311, and the other end of the blocking piece 232 swings around the axis of the fluted disc 2311; the swing opening limiting structure limits the other end of the baffle 232 to swing to a first position with the largest area of the water inlet 100; the other end of the retaining sheet 232 is limited by the swing closing limiting structure to swing to a second position where the area of the water inlet 110 is the smallest, the fluted disc 2311 is symmetrically arranged on the axis of the water inlet 110, the retaining sheet 232 is an arc-shaped sheet structure matched with the outline of the water inlet 110, the retaining sheets 232 are in splicing limiting at the second position, a central through hole concentric with the water inlet 110 is formed after the retaining sheets 232 are spliced, and the area of the central through hole is smaller than that of the water inlet 110. The driving assembly is a rotating shaft 220 provided with a driving tooth 2211, correspondingly, the water blocking assembly comprises a blocking plate 232 and a fluted disc 2311 matched with the driving tooth 2211, the blocking plate 232 is connected to the fluted disc 2311, when the driving tooth 2211 drives the fluted disc 2311 to rotate, the fluted disc 2311 drives the blocking plate 232 to swing to open or partially block the water inlet 110 to change the area of the water inlet 110, a swing opening limiting structure and a swing closing limiting structure are further arranged inside the casing 100 to limit the rotating angle of the blocking plate 232, so that the phenomenon that the blocking plate 232 is excessively rotated to clamp a shell in the casing 100 is avoided, the blocking plate 232 is limited to swing between a first position with the largest area of the water inlet 110 and a first position with the largest area, in order to better improve the water blocking effect of the blocking plate 232, the fluted disc 2311 is symmetrically arranged on the axis of the water inlet 110, the blocking plate 232 is of an arc-shaped sheet structure, the separation blade 110 is spliced and limited, a plurality of separation blades 110 are spliced to form a central through hole concentric with the water inlet 110, and the separation blade 110 is effectively prevented from being displaced under the impact of water flow due to the spliced design of the separation blades 110.
The valve mechanism further comprises an opening and closing assembly, the opening and closing assembly is arranged inside the housing 100 or outside the housing 100, when the opening and closing assembly is arranged outside the housing 100, the blocking cover 300 opens and closes the compensation hole 1201 on the outer surface of the housing 100, the opening and closing assembly comprises the blocking cover 300 and a connecting rod 400, the housing 100 is further provided with the compensation hole 1201, the driving assembly drives the connecting rod 400 to enable the blocking cover 300 to open or close the compensation hole 1201, the driving assembly is provided with a radially extending swing rod 500, the extending tail end of the swing rod 500 is hinged with one end of the connecting rod 400, the other end of the connecting rod 400 is hinged with the blocking cover 300, the housing 100 is provided with a guide groove 1202 positioned at the compensation hole 1201, the connecting rod 400 pushes the blocking cover 300 to slide in the guide groove 1202 under the driving of the swing rod 500, the blocking cover 300 is provided with a first position for opening the compensation hole 1201 and a second position for closing the compensation hole 1201 in the guide, but different water outlet pressures of the spray holes 120 need to be matched with different rotating speeds of the spray arms to achieve a better cleaning effect, therefore, the valve mechanism further comprises an opening and closing component arranged in the water passing cavity, the opening and closing component can simultaneously adjust the water outlet pressure and the rotating speed of the spray arms, the opening and closing component is arranged in the shell 100, food residues are not easily adhered to the opening and closing component, the compensation holes 1201 are controlled through the opening and closing component, so that the effect of changing the rotating speed of the spray arms is achieved, the opening and closing component comprises a blocking cover 300 and a connecting rod 400, a radially extending swing rod 500 is arranged on a driving component, the extending tail end of the swing rod 500 is hinged with one end of the connecting rod 400, the other end of the connecting rod 400 is hinged with the blocking cover 300, when the rotating shaft 220 is rotated, the swing rod 500 pushes and pulls the connecting rod 400 to move, so that the position of, the blocking cover 300 can move more smoothly to avoid the blocking of the shell;
the opening and closing assembly and the water retaining assembly can be independently arranged in the spray arm respectively or simultaneously, when the opening and closing assembly and the water retaining assembly coexist, the driving assembly drives the water retaining assembly to cover the water inlet 110, the opening and closing assembly opens the compensation hole 1201, when the driving assembly drives the water retaining assembly to open the water inlet 110, the opening and closing assembly closes the compensation hole 1201, the opening and closing of the compensation hole 1201 are not very different in effect for adjusting the water outlet pressure of the spray hole 120, the compensation hole 1201 is mainly embodied in that the rotating speed of the spray arm is changed, the water flow cleaning effect acting on the surface of an object to be cleaned is related to the water outlet pressure of the spray hole 120 and the instantaneous length of the water outlet of the spray hole 120 staying at each point of the surface of the object, so that the jet flow direction of the compensation hole 1201 and the rotating plane of the spray arm have an included angle, and the compensation hole 1201 can clean the object and also can adjust the water outlet pressure of, And adjust the function of spray arm rotation rate, when adjusting drive assembly control manger plate subassembly and heightening spray hole 120 water pressure, open and close the subassembly and close compensation hole 1201, spray hole 120 goes out water pressure and increases, reduces the spray arm rotational speed and strengthens washing, when adjusting drive assembly control manger plate subassembly and heightening spray hole 120 water pressure, open and close the subassembly and open compensation hole 1201, spray hole 120 goes out water pressure and reduces, improves the spray arm rotational speed and softly protects and washes.
Example 1: as shown in fig. 1 to 7, the spray arm of the dishwasher capable of adjusting water pressure of the present invention includes a housing 100 forming a water passing cavity and a valve mechanism, the housing 100 is provided with a water inlet 110 and a plurality of spray holes 120, and water flows enter the water passing cavity from the water inlet 110 and then is sprayed out from the spray holes 120; the valve mechanism is arranged at the water inlet 110 to adjust the area of the water inlet 110, so that the water outlet pressure of the spraying hole 120 is adjusted, the area of the water inlet 110 of the spraying arm is adjusted, the water flow of the water passing cavity of the spraying arm is controlled to control the jet pressure of the water column flowing out of the spraying hole 120, the high-low pressure cleaning effect of the spraying arm when cleaning articles is achieved, the types of the cleaning articles are enlarged, and the cleaning function is upgraded.
As can be understood by those skilled in the art, when the spray arm in the embodiment of the invention is used as a water spraying part of the dishwasher, the effect of cleaning kitchenware at high and low pressures during washing articles can be realized, the variety of the kitchenware can be enlarged, and the cleaning function can be upgraded.
As an embodiment, the valve mechanism includes: an automatic valve that is automatically adjusted by an electric control manner or a manual valve that is manually adjusted, but not limited to the above-mentioned types, may be implemented as long as the area of the water inlet 110 and thus the injection pressure of the water column flowing out of the spray hole 120 can be adjusted.
Further, the position of the valve mechanism for adjusting the area of the water inlet 110 is not limited to the top surface of the water inlet 110, and may also be set at the inlet of the water inlet channel communicated with the water inlet or at the middle position, but is not limited to the above position, as long as the water amount entering the water passing cavity from the water inlet 110 can be adjusted.
As an embodiment, the valve mechanism includes an adjusting member, a driving member and a water blocking member, the adjusting member is disposed outside the housing 100, a first end of the driving member is movably connected to the water blocking member, a second end of the driving member is connected to the adjusting member, and the adjusting member can move the water blocking member relative to the water inlet 110, so as to adjust an area of the water blocking member covering the water inlet 110, thereby adjusting a water outlet pressure of the spraying hole 120. The arrangement mode of the valve mechanism and the water inlet 110 realizes the control of the water flow entering the water passing cavity, so that the water outlet pressure of the spraying holes 120 can realize the switching between high pressure and low pressure, and the high-pressure water flow is used for cleaning thick and solid materials such as porcelain tableware and the like, thereby preventing the kitchen ware from being easily broken; the low-pressure washing machine can be used for washing objects such as plastic tableware, milk bottles, nipples, strawberries, blueberries and the like which are easy to wash away and damage.
Optionally, the adjusting member comprises a knob 210, the driving assembly comprises a rotating shaft 220, and the water blocking assembly comprises a gear strip 231 and a blocking piece 232 extending along the moving direction of the water blocking assembly. The first end of the rotating shaft 220 is provided with a driving gear 221, and the driving gear 221 and the gear rack 231 form gear-rack meshing fit. The rotation direction of the driving gear 221 is adjusted so that the shutter 232 covers or opens the water inlet 110. The gear-rack meshing controls the movement of the water retaining component, and the control mode is convenient and reliable.
Preferably, the gear strip 231 is arranged on the top surface of the blocking piece 232, the blocking piece 232 is arranged on the top surface of the water outlet direction of the water inlet 110, and the water retaining assembly is arranged in a mode which is convenient to process and disassemble. The second end of the rotating shaft 220 passes through the limiting hole 130 of the housing 100 and then is connected to the knob 210, the rotating shaft 220 is provided with a positioning table 222, and the positioning table 222 and the limiting hole 130 limit the rotating shaft 220 not to move axially.
In order to control the active area of the water retaining assembly, the spray arm is provided with a longitudinal limit structure and a transverse limit structure as shown in figures 4 and 5. The longitudinal limiting structure limits the water retaining assembly to be attached to the top surface of the water inlet 110; the transverse limiting structure limits a first position of the water retaining assembly when the area of the water inlet 110 is the largest and a second position of the water retaining assembly when the area of the water inlet 110 is the smallest. The longitudinal limiting structure enables the water retaining assembly to be attached to the water inlet 110, and the water outlet pressure of the water inlet 110 is increased. Horizontal limit structure is convenient inject the water retaining component and move in the target range region. For example, when the knob 210 is rotated to the low-pressure mark, the blocking piece 232 is moved to the second position under the driving of the driving gear 221, and the covering amount of the blocking piece 232 to the water inlet 110 reaches the maximum, so that the flow rate at the position is reduced, and the water outlet pressure of the spraying hole is reduced to the minimum.
As shown in fig. 1 and 2, as an embodiment, the lateral limiting structure includes a protruding structure 211 disposed on a sidewall of the knob 210, and a low pressure positioning rib 141 and a high pressure positioning rib 142 disposed on an outer surface of the housing 100 corresponding to the protruding structure 211. The area of the baffle 232 covering the water inlet 110 is adjusted by controlling the angle of rotation of the knob 210. The transverse limiting structure is arranged, so that the processing cost is low, the structure is simple, and the control is convenient.
Preferably, the top wall of the knob 210 is connected to a grip portion 212, and the end of the grip portion 212 extends beyond the edge of the knob, and the grip portion 212 is provided to facilitate rotation of the knob 210. More preferably, marks are provided at the positions of the respective housing top walls of the low pressure positioning rib 141 and the high pressure positioning rib 142, where a denotes a low pressure and B denotes a high pressure, for easy recognition by a user.
As shown in fig. 3, as an embodiment of the longitudinal limiting structure, the longitudinal limiting structure includes limiting grooves 151, 152 disposed at both sides of the water inlet 110, and the blocking piece 232 is movably embedded in the limiting grooves 151, 152. The separation blade 232 is limited by the limiting grooves 151 and 152, and when water flows through the water inlet 110 from bottom to top, upward pressure is applied to the lower surface of the separation blade 232, so that the gear strip 231 of the water retaining assembly is tightly pressed against the driving gear 221, the locking of the gear and the rack is realized, and the water flow is prevented from pushing the driving gear 221 to rotate.
In order to facilitate cleaning of sundries entering the water passing cavity, the housing 100 comprises a sealing cover 160 and a housing body 170 which are detachably connected, the sealing cover 160 covers a mounting hole 172 arranged on the housing body 170, the sealing cover 160 is arranged above the water inlet 110, and a handle 161 is arranged on the top wall of the sealing cover 160. The housing body 170 is provided with a locking groove 173 at a position close to the sealing cap 160, and the sealing cap 160 is detachably connected to the locking groove 173 and covers the mounting hole 172. The sealing cap 160 may be coupled to or decoupled from the catch 173 by rotating the handle 161. The structure and the installation mode of the sealing cover 160 can prevent residues from entering the water passing cavity and blocking the meshing of the gear and the rack, and prevent the uncontrollable blocking piece 232 from shielding the water inlet 110. The sealing cover 160 is arranged in a manner that a user can conveniently detach and install the sealing cover 160, clean the driving gear 221 and the gear rack 231 and install the sealing cover quickly.
Preferably, the handle 161 is structured as a plate-like structure extending upward with respect to the sealing cover 160. More preferably, the handle 161 includes a pair of plate-like structures disposed opposite to each other. More preferably, the plate-like structure is attached to the sealing cover 160 at a location remote from the center. The structure of the handle 161 does not cause a problem of catching residue and is convenient to operate.
In order to enhance the sealing effect between the sealing cover 160 and the housing body 170, a sealing gasket 180 is disposed between the sealing cover 160 and the housing body 170. Preferably, the outer diameter of the sealing washer 180 is radially press-fit sealed with the mounting hole 172, and the outer diameter of the sealing washer 180 is provided with a bead to enhance sealability. After the seal cap 160 is installed in place, the upper end surface of the seal gasket 180 is fully pressed against the flat surface of the seal cap 160 to achieve end face sealing. The seal ring 240 between the seal cap 160 and the positioning table 222 can be sufficiently pressed and sealed. The sealing cover 160 and the radial and end face of the mounting hole 172 are sealed in a double mode, and the rotating shaft 220 and a sealing ring 240 of the sealing cover 160 are sealed, so that the sealing performance of an operation area is guaranteed.
It will be appreciated by those skilled in the art that the housing 100 may be provided as a single-piece structure or a split-type structure. When the casing 100 is designed to be a split structure, it includes an upper casing and a lower casing, and the upper casing and the lower casing are connected by welding or detachable, such as snap connection. Of course, the structure and connection manner of the housing 100 are not limited to the above.
As shown in fig. 3 and 6, in order to strengthen the connection between the sealing cover 160 and the housing body 170, the sealing cover 160 is prevented from being detached from the housing body 170 during the rotation of the shower arm. The sealing cover 160 is provided with a fixing rib 162 corresponding to the clamping groove 173, one side of the fixing rib 162 is provided with a forward rotation limiting rib 163 abutting against one end of one side of the clamping groove 173, the other side of the fixing rib 162 is provided with an elastic rib 164, the fixing rib 162 is provided with an avoiding notch 165 for the elastic rib 164 to deform and penetrate through the clamping groove 173, and the outer end of the elastic rib 164 can abut against the other end of the clamping groove 173.
The sealing cover 160 and the housing body 170 are mounted as follows: holding the handle 161 to rotate, making elastic rib 164 get into the draw-in groove 173 at first, because dodging breach 165 and making elastic rib 164 have sufficient deformation space, when sealed lid 160 is rotatory, elastic rib 164 is bent and passed draw-in groove 173 region back to dodging breach 165 department by draw-in groove 173 and is resumeed, and spacing messenger sealed lid 160 can't rotate again with draw-in groove 173 is spacing just revolved to spacing muscle 163 and the draw-in groove 173 simultaneously, and elastic rib 164 is because the reconversion is spacing with draw-in groove 173 face contact reversal. The fixing rib 162 is caught in the catching groove 173, thereby fixing the housing body 170 and the sealing cover 160.
As shown in fig. 1, as an embodiment, a low pressure positioning rib 141 and a high pressure positioning rib 142 are provided on an upper surface of the sealing cover 160, and the low pressure positioning rib 141 and the high pressure positioning rib 142 are engaged with a protrusion 211 of the knob 210 to rotate the knob 210 at a fixed area.
As an embodiment, the sealing cover 160 is provided with a limiting hole 130, the second end of the rotating shaft 220 extends out of the limiting hole 130 and then is in threaded connection with the knob 210, and the limiting hole 130 is eccentrically arranged relative to the water inlet 110; the rotating shaft 220 is provided with a positioning table 222 rotatably matched with the limiting hole 130, and a sealing ring 240 is clamped between the positioning table 222 and the limiting hole 130. The eccentric setting of spacing hole 130 and water inlet 110 for the separation blade 231 covers the area of water inlet 110 and is maxmizing, makes the water pressure of water inlet 110 can be the biggest, and the hydraulic control range of water inlet 110 is wide, is suitable for the kind of clear kitchen utensils and appliances many.
The assembling method of the rotating shaft 220 and the sealing cover 160 includes: the second end of the rotating shaft 220 is first sleeved with the sealing ring 240, positioned by the positioning table 222, and then passes through the limiting hole 130 of the sealing cover 160, the knob 210 is in a cover-shaped structure, and the internal thread in the inner cavity of the knob 210 is matched and fixed with the thread on the rotating shaft 220. Meanwhile, the positioning table 222 is inserted into the limiting hole 130 of the sealing cover 160 to keep the rotating shaft 220 in a vertical state, and the sealing ring 240 is prevented from falling off. The inner ring of the sealing washer 180 is fitted over the outer diameter of the sealing rib 166 of the sealing cap 160. The knob 161 of the knob 210 needs to be aligned with the top surfaces of the teeth of the driving gear 221 on the rotation shaft 220. If the assembly process cannot be realized, the knob 210 and the rotating shaft 220 may be first positioned by the locking slot 173, and then the knob 210 and the driving gear 221 may be fixed by screws.
Example 2: as shown in fig. 8-11, the utility model discloses an adjustable water pressure dish washer spray arm, with the spray arm of embodiment 1's difference lie in, horizontal limit structure, position are different, specifically as follows: the transverse limiting structure comprises a low-pressure positioning cover 250 arranged on the inner wall of the shell 100, the low-pressure positioning cover 250 can abut against the end part of one side of the baffle 232, when the rotary knob 210 is rotated to one side of the baffle 232 to be in contact with the low-pressure positioning cover 250, the rotary knob 210 is stopped, the pressure of a water column of the spraying hole 120 is minimum, and the transverse limiting structure is suitable for cleaning light kitchenware.
Preferably, the low pressure positioning cap 250 is detachably attached to the inner side of the bottom wall of the housing 100. More preferably, the low pressure retaining cap 250 is threaded onto the inside of the bottom wall of the housing 100. The connection mode of low pressure location lid 250 can not cause the hindrance when installation separation blade 232, can install separation blade 232 to vertical limit structure back earlier, presses installation pressure low pressure location lid 250 again, can restrict the activity in certain area with the manger plate subassembly, is difficult for droing.
As shown in fig. 10 and 11, as a high-pressure position limiting manner of the water blocking assembly, a first positioning fillet 233 is disposed at an end of the blocking piece 232 away from the water inlet 110, a second positioning fillet 171 matched with the first positioning fillet 233 is disposed on an inner wall of the casing 100, and the first positioning fillet 233 abuts against the second positioning fillet 171 when the blocking piece 232 is located at a first position where the area of the water inlet 110 is the largest. This high pressure position limited mode has not only reduced the part quantity that uses, and the arc structure setting of first location fillet 233 and second location fillet 171 has reduced the whole volume and the weight of spray arm moreover.
When the first locating rounded corner 233 of the water blocking assembly contacts the second locating rounded corner 171, the water blocking assembly has minimal or almost no obstruction to the water inlet 110. At this time, under the condition that the output flow and the lift of the circulating pump are constant, the flow of the water inlet 110 is maximized, so that the water outlet pressure of the spraying holes 120 is maximized.
In order to facilitate the user to identify the high pressure and the low pressure sprayed by the spray arm, a high pressure rotation arrow and a low pressure rotation arrow which are opposite in rotation direction are preferably arranged on the top wall of the knob 210, the arrows on the knob 210 are matched with marks, namely A represents the low pressure, and B represents the high pressure, and the use by the user is also intuitive. When the knob 210 is rotated to the high-voltage mark, the driving gear 221 and the gear rack 231 can be correspondingly engaged in place only by making the thickness of the gear rack 231 on the water blocking assembly sufficient to align the sealing rib 166 with the mounting hole 172.
Example 3: as shown in fig. 12-19, the utility model discloses a spray arm of dishwasher with adjustable water pressure, including the casing 100 that forms the water cavity, be equipped with the spray hole 120 on the casing 100, still be equipped with compensation hole 1201 on the casing 100, drive assembly, and open and close the subassembly, drive assembly drive open and close subassembly opens or closes compensation hole 1201, thereby adjust the water pressure that sprays hole 120, through set up drive assembly in casing 100, through drive assembly regulation open and close subassembly, and then control the open or closed state of compensation hole 1201, under the power of dishwasher water pump, the lift is certain, when compensation hole 1201 is opened, the area that goes out that is equivalent to casing 100 becomes big, when compensation hole 1201 closes, the area that goes out that is equivalent to casing 100 becomes little, according to the hydrodynamics principle, spray hole 120 and compensation hole's that the casing 100 each department go out water pressure department equals, through adjusting the opening and closing of compensation hole 1201, change the water outlet area of casing 100, and then the inside water pressure size of control casing 100, finally realize that the control sprays the play water pressure and the velocity of flow of hole 120, spray water pressure and the velocity of flow through adjusting the hole 120 of spraying, the situation of use of dish washer has been enlarged, use both can wash the porcelain bowl of this spray arm, hard heavier article such as stainless steel pot, also can wash the plastics tableware, the feeding bottle, the easy article that is washed away of nipple, be equipped with the arrow point of suggestion water pressure height regulation on the knob 210, the user can adjust the play water pressure who sprays hole 120 by oneself according to the selection.
The driving assembly comprises a knob 210 and a rotating shaft 220, the knob 210 is connected to the top end of the rotating shaft 220, the lower end of the rotating shaft 220 is provided with a swing rod 500 which extends outwards along the radial direction, the extending tail end of the swing rod 500 is hinged with an opening and closing assembly, in order to realize the opening and closing of the opening and closing assembly regulation compensation hole 1201 controlled by the driving assembly, the driving assembly is arranged at a water inlet in the shell 100, the driving assembly comprises the knob 210 which is arranged outside the shell 100 and used for manual screwing operation and the rotating shaft 220 which is arranged inside the shell 100, in order to better utilize the internal space of the shell 100 and reduce the resistance of the rotating shaft 220 to water, the rotating shaft 220 is designed to be axially parallel to the water inlet 110, a through hole is arranged in the axial direction of the rotating shaft 220, a connecting bolt 2201 is connected in the through hole in an internal thread manner, the connecting bolt 2201 extends upwards out of the, in order to link the driving component and the opening and closing component, a swing rod 500 extending outwards along the radial direction of the rotating shaft 220 is arranged at the bottom of the rotating shaft 220, the end part of the swing rod 500 is connected with the opening and closing component, when the rotating shaft 220 is driven by the knob 210 to rotate, the rotating shaft 220 drives the swing rod 500 below the rotating shaft to swing, and the swing rod 500 further drives the input end of the opening and closing component to move;
the opening and closing assembly comprises a blocking cover 300 and a connecting rod 400 hinged with the blocking cover 300, the other end of the connecting rod 400 is hinged with a driving assembly, a guide groove 1202 positioned at the position of the compensation hole 1201 is arranged on the shell 100, the connecting rod 400 pushes the blocking cover 300 to slide in the guide groove 1202 under the driving of the driving assembly, the blocking cover 300 is provided with a first position for opening the compensation hole 1201 and a second position for closing the compensation hole 1201 in the guide groove 1202, the opening and closing assembly comprises the blocking cover 300 capable of covering the compensation hole 1201, in order to ensure that the blocking cover 300 can directionally and reciprocally move relative to the compensation hole 1201, the inner wall of the shell 100 is provided with the guide groove 1202, the blocking cover 300 is embedded in the guide groove 1201 to move, the outer side surface of the blocking cover 300 is provided with a pin shaft 301, the pin shaft 301 is hinged at one end of the connecting rod 400, the other end of the connecting rod 400 is hinged at the end of a swing rod 500 of the, opening or covering the compensation hole 1201;
the spray arm is provided with a rotating plane for rotating and spraying, the jet direction of the compensation holes 1201 forms an included angle with the rotating plane, and water in the shell 100 is sprayed from the compensation holes 1201 to push the spray arm to rotate in the rotating plane.
The shell 100 is provided with a water inlet 110, the shell 100 is also internally provided with a water retaining component for adjusting the water inlet flow of the water inlet 110, the water retaining component is connected with a driving component in a transmission way, the water retaining component is provided with a low-pressure position for reducing the flow of the water inlet 110 and a high-pressure position for increasing the flow of the water inlet, the driving component drives the water retaining component to be linked with an opening and closing component, when the water retaining component is selected to be positioned at the low-pressure position or the high-pressure position, the blocking cover 300 selectively opens or closes the compensation hole, if the compensation hole 1201 and the spray hole 120 are in the same structure, and the number of the compensation holes 1201 is not large, the effect difference of the opening and closing of the compensation hole 1201 on the regulation of the water outlet pressure of the spray hole 120 is not great, the cleaning effect of the jet acting on the surface of an article is related to the water outlet pressure of the spray hole 120, and the instantaneous length of the water outlet of the spray hole 120 staying at each point of, the compensation holes 1201 have the functions of adjusting the water outlet pressure of the spray holes 120 and adjusting the rotation speed of the spray arms besides cleaning the articles; in order to further control the water pressure in the spray arm and further reduce the minimum pressure of the water outlet of the spray holes 120, so that the dishwasher can clean the easily broken foods such as waxberries, strawberries, blueberries and the like, the shell 100 is also internally provided with a water retaining component, in order to optimize the structure and reduce the cost, the water retaining component and the driving component are arranged in a linkage manner, when the driving component is adjusted to control the water retaining component to increase the water pressure of the spray holes 120, the opening and closing component closes the compensation holes 1201, the water outlet pressure of the spray holes 120 is increased, the rotating speed of the spray arms is reduced to carry out the intensive washing, each point on the surface of an article is impacted by continuous high-pressure water flow, when the driving component is adjusted to control the water retaining component to decrease the water pressure of the spray holes 120, the opening and closing component opens the compensation holes 1201, the water outlet pressure of the spray holes 120 is reduced, the rotating speed of the spray arms is increased to, by controlling the driving assembly, the water outlet pressure and the water outlet flow rate of the spraying holes 120 are adjusted at the same time, and the rotating speed of the spraying arm is adjusted, so that the dish washer provided with the spraying arm can wash articles with any texture.
The driving assembly is provided with a driving tooth 2211, the water blocking assembly comprises a fluted disc 2311 in meshing transmission with the driving tooth 2211 and a baffle 232 arranged on the fluted disc 2311, the center of the fluted disc 2311 is rotatably provided with a positioning bolt 2312, the lower end of the positioning bolt 2312 is in threaded connection with a positioning seat 2313 on the inner wall of the shell 100, the driving tooth 2211 drives the fluted disc 2311 to rotate so as to drive the baffle 232 to open or partially shield the water inlet 110, in order to realize linkage of the rotating shaft 220 of the driving assembly and the water blocking assembly, the rotating shaft 220 is provided with the driving tooth 2211, the water blocking assembly comprises a plurality of fluted discs 2311 in meshing transmission with the driving tooth 2211, when the rotating shaft 220 is rotated, the driving tooth 2211 drives the fluted disc 2311 in meshing transmission with the driving tooth 2211 to rotate, one end of the baffle 232 is connected to an end door of the fluted disc 2311, the baffle 232 further swings synchronously with the rotating fluted disc 2311 so as to cover or, and then change spray arm internal pressure through adjusting the velocity of flow, in order to further reduce the hindrance of drive tooth 2211 self to water inlet 110, improve and spray hole 120 water pressure maximum value, drive tooth 2211 is a plurality of fan-shaped teeth of piecing together, furthest's reduction drive tooth 2211 self to the hindrance of water inlet.
A limiting part is arranged in the shell 100 and comprises a swing opening limiting structure and a swing closing limiting structure, and the swing opening limiting structure limits the other end of the blocking piece 232 to swing to a first position with the largest area of the water inlet 110; the swing closing limiting structure limits the other end of the blocking piece 232 to swing to a second position with the smallest area of the water inlet 110, the fluted disc 2311 drives the blocking piece 232 to swing to a high-pressure position, the limiting part limits the rotation of the blocking piece 232, the limit part is arranged in the housing 110 to limit the swing angle of the blocking piece 232, so as to prevent a user from excessively twisting the knob 210, and effectively protect the blocking piece 232 and the swing rod 500 from being clamped in the housing 110, the limit part can be two stoppers or arc-shaped sliding grooves 600, the function of the sliding device is to make the movement of the blocking plate 232 smoother, and when the contour shape of the arc-shaped sliding chute 600 and the blocking plate 232 swing, the shape of the swept track of the end part of the baffle plate 232 is matched, so that the end part of the baffle plate 232 is always attached to the inside of the arc-shaped sliding groove 600, the maximum rotating angle of the knob 210 can be limited, water pressure can be balanced, and the baffle plate 232 is prevented from being jammed with the driving teeth 2211 and the fluted disc 2311 due to uneven stress.
As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides an adjustable water pressure dish washer spray arm, includes the casing, the casing sets up water inlet and a plurality of spraying hole, and rivers are followed the water inlet gets into behind the spray arm follow spray hole blowout, its characterized in that: still include valve mechanism, valve mechanism includes drive assembly and manger plate subassembly, the manger plate subassembly set up in the casing, drive assembly certainly extend to in the casing outside the casing, drive assembly drive the manger plate subassembly for the water inlet activity is in order to open or partly cover the water inlet, the manger plate subassembly is through sheltering from the area of water inlet to the play water pressure in regulation spraying hole.
2. The adjustable water pressure dishwasher spray arm of claim 1, wherein: the driving assembly comprises a rotating shaft provided with a driving gear, the water retaining assembly is provided with a blocking piece and a gear bar matched with the driving gear, and the driving gear drives the gear bar to move along a straight line so as to drive the blocking piece to open or partially shield the water inlet.
3. The adjustable water pressure dishwasher spray arm of claim 2, wherein: the spraying arm is provided with a longitudinal limiting structure and a transverse limiting structure;
the transverse limiting structure limits the water retaining assembly to cover a first position with the largest area of the water inlet and a second position with the smallest area of the water inlet;
the longitudinal limiting structure limits the water retaining assembly to be attached to the water inlet to move.
4. The adjustable water pressure dishwasher spray arm of claim 3, wherein: the transverse limiting structure comprises a convex structure arranged on the side wall of the knob, and a low-pressure positioning rib and a high-pressure positioning rib which are arranged on the outer surface of the shell and correspond to the convex structure; or
The transverse limiting structure comprises a low-pressure positioning cover arranged on the inner wall of the shell, and the low-pressure positioning cover can abut against the end part of one side of the water retaining assembly;
the longitudinal limiting structure comprises limiting grooves arranged on two sides of the water inlet, and the water retaining component is movably embedded in the limiting grooves.
5. The adjustable water pressure dishwasher spray arm of claim 1, wherein: the driving assembly comprises a rotating shaft provided with driving teeth, a separation blade and a fluted disc matched with the driving teeth are arranged on the water retaining assembly, and the driving teeth drive the fluted disc to rotate so as to drive the separation blade to swing to open or partially shield the water inlet.
6. The adjustable water pressure dishwasher spray arm of claim 5, wherein: the spray arm is provided with a swing opening limiting structure and a swing closing limiting structure;
one end of the separation blade is connected with the fluted disc, and the other end of the separation blade swings around the axis of the fluted disc;
the swing opening limiting structure limits the other end of the baffle to swing to a first position where the area of the water inlet is the largest;
the swing closing limiting structure limits the other end of the baffle to swing to a second position where the area of the water inlet is the smallest.
7. The adjustable water pressure dishwasher spray arm of claim 6, wherein: the fluted disc in the water inlet axle center symmetry is equipped with a plurality ofly, the separation blade is the arc sheet structure with water inlet profile looks adaptation under the second position, it is a plurality of the separation blade amalgamation is spacing, and is a plurality of be formed with after the separation blade amalgamation with the concentric central through-hole of water inlet, central through-hole area is less than the water inlet.
8. The adjustable water pressure dishwasher spray arm according to any one of claims 1 to 7, characterized in that: the valve mechanism further comprises an opening and closing assembly, the opening and closing assembly comprises a blocking cover and a connecting rod, a compensation hole is further formed in the shell, and the driving assembly drives the connecting rod to enable the blocking cover to open or close the compensation hole.
9. The adjustable water pressure dishwasher spray arm of claim 8, wherein: the driving assembly is provided with a swing rod extending in the radial direction, the extending tail end of the swing rod is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the blocking cover.
10. The adjustable water pressure dishwasher spray arm of claim 9, wherein: the shell is provided with a guide groove located at the position of the compensation hole, the connecting rod is driven by the swing rod to push the blocking cover to slide in the guide groove, and the blocking cover is provided with a first position for opening the compensation hole and a second position for closing the compensation hole in the guide groove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922177918.4U CN212213679U (en) | 2019-12-05 | 2019-12-05 | Adjustable water pressure dish washer spray arm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922177918.4U CN212213679U (en) | 2019-12-05 | 2019-12-05 | Adjustable water pressure dish washer spray arm |
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| CN212213679U true CN212213679U (en) | 2020-12-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114903403A (en) * | 2022-05-16 | 2022-08-16 | 浙江亨德清洗科技有限公司 | Commercial dish washer of conveying formula |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114903403A (en) * | 2022-05-16 | 2022-08-16 | 浙江亨德清洗科技有限公司 | Commercial dish washer of conveying formula |
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Effective date of registration: 20230806 Address after: Building 2, No. 52, 22nd Street, Baiyang Street, Qiantang New District, Hangzhou City, Zhejiang Province, 310000 Patentee after: Hangzhou Jiuchuang Home Appliances Co.,Ltd. Address before: No. 999, Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee before: JOYOUNG Co.,Ltd. |