CN216020661U - Automatic wash broken wall machine - Google Patents

Abstract

The utility model discloses an automatic cleaning wall breaking machine which comprises a host machine and a stirring cup assembly arranged on the host machine and internally provided with a processing cavity, wherein a water tank and a water conveying pipeline connected with the water tank are arranged in the host machine, the stirring cup assembly comprises a slurry outlet nozzle and a rotary valve, the rotary valve comprises a valve seat, a valve core and a valve sleeve, the valve core is rotatably arranged in the valve seat, the valve sleeve is arranged between the valve core and the valve seat and used for sealing, a water conveying hole and a slurry outlet hole are formed in the valve core, and a gap supporting structure used for limiting a matching gap is arranged between the valve sleeve and the valve core. The utility model can ensure the normal work of the rotary valve on the basis of ensuring the sealing effect of the valve core and the valve sleeve of the rotary valve, and further ensure the normal operation of the wall breaking machine all the time.

Description

Automatic wash broken wall machine

Technical Field

The utility model belongs to the technical field of household cooking appliances, and particularly relates to an automatic cleaning wall breaking machine.

Background

With the improvement of living standard, various household electrical appliances for cooking, such as electric ovens, electric chafing dishes, baking machines (electric baking pans), wall breaking machines, etc., are emerging. The wall breaking machine generally comprises a main machine, a stirring cup body arranged on the main machine, and a cup cover covered on the stirring cup body, wherein a slurry outlet is arranged on the stirring cup body, a stirring knife is arranged in the stirring cup body, and a motor connected with the stirring knife in a transmission manner is arranged in the main machine. When edible material is needed to be treated, the cup cover can be opened, then the edible material is put into the stirring cup body, the cup cover is covered again and the motor is started, the motor drives the stirring knife to rotate at a high speed, and then the edible material is crushed to a broken wall state of the fine bubble wall, so as to be beneficial to the absorption of human body to the nutrition of the edible material, the treated juice can be output outwards through the pulp outlet, and at the moment, only one pulp receiving cup is placed at the pulp outlet to receive the flowing pulp.

In order to promote the user experience of broken wall machine, but people find self-cleaning's broken wall machine, set up the water tank in the host computer, electronic water pump, accomplish the processing to eating the material when the broken wall machine, the user moves away and connects the thick liquid cup and open the cleaning function, the clear water in the water tank gets into in the stirring cup, the high-speed rotation of stirring sword, the clear water can the sanitization stirring sword, the stirring cup, wash and store in can getting into a surplus water box, the user only need fall the washing water in the surplus water box, can begin subsequent edible material and handle.

In order to reasonably control the flow direction of water flow in the water tank, the wall breaking machine is also provided with a rotary valve for controlling the on-off of the water flow and slurry through rotating a valve core, and the valve core of the rotary valve at least has a water delivery level, a stop level and a slurry outlet level. When the valve core is positioned at the water delivery level, the corresponding water delivery pipeline is conducted, and at the moment, water in the water tank can enter the stirring cup body to be mixed with the food materials to form slurry; or when the valve core is positioned at the water delivery level, the corresponding water delivery pipeline is conducted, and at the moment, water in the water tank can enter the stirring cup body to start and clean the stirring cup body. When the valve core is positioned at the slurry outlet position, the corresponding slurry outlet channel is communicated, and at the moment, slurry in the stirring cup body can flow out through the slurry outlet channel and enter the slurry receiving cup; or the cleaning water after cleaning in the stirring cup body can flow out through the slurry outlet channel and enter the residual water box. When the valve core is at the cut-off position, the water conveying pipeline and the pulp outlet channel are all in the cut-off state.

As the prior art, a rotary valve generally includes a valve seat having a valve cavity, a valve core rotatably disposed in the valve cavity of the valve seat, and a driving unit for driving and controlling the rotation of the valve core, wherein the valve core is provided with a water inlet and a slurry outlet, a valve sleeve for sealing is disposed between the valve cavity of the valve seat and the valve core, and the valve sleeve is generally made of silica gel or the like, so that the rotary valve is resistant to high temperature and meets the requirement of food hygiene. Certainly, the valve sleeve is required to be provided with a through hole corresponding to the water delivery hole and the slurry outlet hole.

It should be noted that, a certain interference fit should be formed between the valve sleeve and the valve cavity of the valve core and the valve seat, so that the valve sleeve has an initial pressure to ensure the sealing effect, and at this time, rotating the valve core generates a frictional resistance between the hairstyle and the valve sleeve. In addition, the wall breaking machine can be used for processing raw and cold food materials and hot cooked food materials. When the hot cooked food materials are treated, the temperature of the formed slurry is high, so that the temperature of a valve core, a valve sleeve and a valve seat of the rotary valve is correspondingly increased, and in severe cases, the valve core and the valve sleeve and the valve cavity and the valve sleeve are adhered to each other, so that the damping of the valve core during rotation is further increased.

In order to accurately control the rotation angle of the valve core, the rotary valve needs to be provided with a corresponding angle or position positioning structure and a controller so as to accurately position the valve core at a water conveying level, a stop position and a pulp outlet position. In prior art, when the case location was at water delivery position, cut-off position, play thick liquid position, angle or position location structure can make the rotational damping of case increase, and the controller can judge whether the case rotates to target in place according to the damping size of rotating the case, then controls the operation procedure of broken wall machine.

It will be appreciated that, in order to ensure the sealing effect, one would normally increase the amount of interference fit between the valve sleeve and the valve core, and this strategy, although beneficial to improve the sealing effect, would have the following disadvantages: on the one hand, can increase the resistance when rotating the case, make even change between case and the valve barrel and link in the adhesion, when the resistance between case and the valve barrel was too big, the controller received the error signal easily, judged the case by mistake with the too big rotational resistance of case and was located specific position and received location structure's location resistance to cause the work error of changeing the valve, then influenced the normal operating of whole broken wall machine. On the other hand, the valve sleeve can bear excessive compression deformation, so that the valve sleeve gradually loses elasticity due to creep deformation, and the sealing effect is influenced. Of course, the interference magnitude between the valve core and the valve sleeve can be reduced to reduce the resistance of the valve core during rotation and slow down the creep speed of the valve sleeve as much as possible, but the method can reduce the sealing effect of the valve sleeve, and particularly after the rotary valve works for a certain time, the valve core can cause certain abrasion and permanent compression deformation of the valve sleeve, and at the moment, the sealing effect can be further reduced. That is, there is no structure in the prior art that can maintain a proper interference fit between the valve sleeve and the valve core to ensure that the valve core maintains a good sealing effect with respect to the valve sleeve for a long time without affecting the free rotation of the valve core.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic cleaning wall breaking machine which can ensure the normal work of a rotary valve on the basis of ensuring the sealing effect of a valve core and a valve sleeve of the rotary valve, and further ensure the normal operation of the wall breaking machine all the time.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an automatic wash broken wall machine, includes the host computer, sets up the inside stirring cup subassembly that has the process chamber on the host computer, is equipped with the water tank in the host computer and the conduit line of being connected with the water tank, and stirring cup subassembly includes out thick liquid mouth, changes the valve, change the valve and include the disk seat, rotationally set up case in the disk seat, set up and be used for sealed valve barrel between case and disk seat, be equipped with water delivery hole and play thick liquid hole on the case, be equipped with the clearance bearing structure who is used for injecing the fit clearance between valve barrel and case.

The rotary valve comprises a valve seat, a valve core arranged in the valve seat and a valve sleeve arranged between the valve core and the valve seat, wherein the valve core is provided with a water delivery hole and a slurry outlet hole, and the valve core can be rotationally switched among a water delivery position, a stop position and a slurry outlet position. Therefore, the rotary valve can be selectively communicated with the stirring cavity, the slurry outlet nozzle and the water pipeline, or the stirring cavity, the slurry outlet nozzle and the water pipeline are completely cut off.

Different from the prior art, the clearance supporting structure for limiting the fit clearance is arranged between the valve sleeve and the valve core, so that the stable fit clearance can be ensured to be kept between the valve sleeve and the valve core for a long time.

It can be understood that the fit clearance between the valve sleeve and the valve core can be reasonably set, so that the valve sleeve forms a proper compression amount, the reliable sealing effect can be ensured, the defect that the resistance is overlarge or the creep deformation is generated quickly can be avoided, and the long-term technical problems in the prior art can be conveniently and effectively solved.

Preferably, the gap supporting structure is a plurality of supporting ribs arranged on the inner side wall of the valve sleeve; or the clearance supporting structure is a plurality of supporting ribs arranged on the outer side wall of the valve core.

When the clearance supporting structure is a plurality of supporting ribs arranged on the inner side wall of the valve sleeve, the supporting ribs are sealing ribs integrally connected with the valve sleeve, so that the sealing effect between the valve sleeve and the valve core can be effectively ensured, the matching contact area between the valve sleeve and the valve core can be greatly reduced, the friction resistance when the valve core rotates is effectively reduced, and the valve core and the valve sleeve are convenient to assemble.

When clearance bearing structure is for setting up a plurality of support ribs at the case lateral wall, this support rib is the rigidity rib that sets up at the case lateral wall as an organic whole promptly, through the interference fit of rigidity rib and valve barrel inside wall, can realize the sealing connection between the case valve barrel, shows simultaneously and reduces the cooperation area of contact between the case valve barrel, not only does benefit to the frictional resistance when reducing the case rotation, makes things convenient for the assembly of case, valve barrel again.

Preferably, the fit clearance between the valve sleeve and the valve core is between 0.05 and 1.2 mm.

By reasonably setting the fit clearance between the valve sleeve and the valve core, the direct contact between the valve core and the valve sleeve can be avoided to increase the rotation resistance of the valve core; when the clearance supporting structure is a plurality of supporting ribs arranged on the inner side wall of the valve sleeve, the sealing effect can be prevented from being influenced by the undersize compression amount of the supporting ribs.

When the fit clearance between the valve sleeve and the valve core is less than 0.05mm, the valve core is easily in direct contact with the valve sleeve due to the compression of the supporting ribs.

When the fit clearance between the valve sleeve and the valve core is larger than 1.2mm, the relative compression amount of the support ribs is reduced under the same absolute compression amount of the support ribs, so that the sealing effect is influenced.

Preferably, the support ribs arranged on the inner side wall of the valve sleeve comprise a plurality of isolation sealing ribs, and when the valve core rotates to the slurry outlet position from the water delivery position, the isolation sealing ribs respectively surround the water delivery hole and the slurry outlet hole, so that the water delivery hole and the slurry outlet hole are isolated from each other.

In this scheme, the support rib that sets up at the valve barrel inside wall includes a plurality of isolation sealing ribs to in the rotation process of case by water delivery position to play thick liquid position, above-mentioned isolation sealing rib centers on water delivery hole and play thick liquid hole respectively, thereby can ensure the mutual sealed isolation between water delivery hole and the play thick liquid hole, avoid mixing each other of thick liquid and water.

Particularly, the isolating and sealing ribs are provided with a plurality of ribs, so that on one hand, the valve core is favorably and uniformly and stably supported, and the valve core is prevented from deflecting relative to the valve sleeve and the valve seat. On the other hand, can form a plurality of isolation seal regions between adjacent isolation seal ribs, above-mentioned isolation seal region is favorable to when the case rotates, realizes the mutual sealed isolation between water delivery hole and the play thick liquid hole, that is to say, can make water delivery hole and play thick liquid hole can not appear in same seal region by the isolation seal rib enclose simultaneously.

Preferably, the support ribs comprise annular end sealing ribs at both ends of the valve housing.

The annular end sealing ribs positioned at the two ends of the valve sleeve can enable the valve core to form end supports at the two ends relative to the valve sleeve, and the reliable and stable positioning of the valve core relative to the valve sleeve is ensured.

In particular, the annular end sealing ribs can enable the valve core to form enough support relative to the valve sleeve and can also reduce the friction resistance of the valve core during rotation to the maximum extent.

Preferably, one end of the isolation sealing rib is connected with the end sealing rib at the upper part, the other end of the isolation sealing rib is connected in parallel, and when the valve core rotates from the water delivery position to the slurry outlet position, at least two isolation sealing ribs surround the water delivery hole.

One end of the isolation sealing rib is connected with the end sealing rib at the upper part, the other end of the isolation sealing rib is connected in parallel, and the end sealing rib is of an annular structure. Therefore, a plurality of isolation sealing areas can be formed between adjacent isolation sealing ribs, and the length of the isolation sealing ribs can be shortened as much as possible so as to reduce the matching contact area of the isolation sealing ribs and the valve core and further reduce the friction resistance of the valve core during rotation.

As the preferred, be equipped with the row's thick liquid hole that communicates the working chamber on the valve barrel, be equipped with the sealed muscle of row's thick liquid that is located row thick liquid hole both sides at the valve barrel inside wall, the lower extreme of the sealed muscle of row's thick liquid is connected with the sealed muscle of tip of lower part, and the upper end of the sealed muscle of row's thick liquid is connected with the sealed muscle of isolation.

It can be understood that the slurry discharge sealing ribs on the two sides of the slurry discharge hole can form effective sealing for the slurry discharge hole.

Particularly, the upper end and the lower end of the slurry discharging sealing rib are respectively connected with the end part sealing ribs at the upper part and the lower part, so that a closed sealing area is defined, the sealing of a slurry discharging hole can be ensured, the sealing effect of the end part sealing ribs can be fully utilized, the length of the slurry discharging sealing ribs is shortened, and the contact matching area between the valve core and the valve sleeve and the friction resistance when the valve core rotates are further reduced.

Preferably, the clearance support structure further comprises a balance support rib arranged at an interval with the slurry discharge sealing rib on the front side of the valve core in the rotation direction, and two ends of the balance support rib are respectively connected with the end sealing ribs at the upper end and the lower end.

The utility model is also provided with the balance support rib which is arranged at an interval with the slurry discharge sealing rib on the front side of the rotation direction of the valve core, thereby being beneficial to the stable positioning of the valve core relative to the valve sleeve and the valve seat, avoiding the relative deflection of the valve core, simultaneously forming one more isolation sealing area for the slurry discharge hole and effectively avoiding the partial positioning of the slurry discharge hole and the water delivery hole in the same sealing area.

Preferably, the water delivery hole on the valve core is bent into a V shape in the cross section of the valve core, and the central angle corresponding to the water delivery hole of the V shape is 106 degrees +/-5 degrees.

The utility model makes the water delivery hole bend into V shape of 106 degrees +/-5 degrees in the cross section of the valve core, thus making the proper included angle between the two end openings of the water delivery hole, and then making the valve core have proper angle when rotating between the water delivery level and the stop position, which is not only beneficial to the effective isolation and sealing of the water delivery hole, but also convenient for the processing, manufacturing, assembling and positioning control of the rotary valve, especially the valve core when rotating.

When the water delivery hole is bent into a V shape smaller than 101 degrees in the cross section of the valve core, the included angle between the water delivery level and the stop position of the valve core is too small, which is not beneficial to the positioning control of the valve core between the water delivery level and the stop position and the effective sealing of the water delivery hole. When the water delivery hole is bent into a V shape larger than 111 degrees in the cross section of the valve core, the included angle between the water delivery position and the stop position of the valve core is too large, so that the included angle between the stop position and the pulp outlet position is too small, and the positioning control of the valve core between the pulp outlet positions and the effective sealing of the water delivery hole in a ring are not facilitated.

Preferably, the stirring cup assembly further comprises positioning convex points which can elastically stretch out and draw back, corresponding positioning grooves are formed in the valve core, and when the valve core rotates to the water delivery position, the stop position and the pulp outlet position, the positioning convex points are located in the corresponding positioning grooves.

When the positioning salient points are elastically positioned in the corresponding positioning grooves, the reliable positioning of the valve core can be realized. Particularly, when the valve core rotates from one position to the other position, the positioning groove can axially extrude the positioning salient point, so that the positioning salient point elastically retracts, and the valve core can freely rotate at the moment. When the valve core rotates to the next position, the positioning salient points elastically reset and are ejected outwards, so that the valve core enters the next positioning groove and is positioned at the next position. It can be understood that the resistance of the positioning salient point when being moved out of the positioning groove can be conveniently controlled by adjusting the shapes of the positioning salient point and the positioning groove, so that the valve core can be freely rotated among three positions, and meanwhile, the valve core can be reliably positioned in the three positions.

Therefore, the utility model has the following beneficial effects: on the basis of ensuring the sealing effect of the valve core and the valve sleeve of the rotary valve, the normal work of the rotary valve can be ensured, and then the normal operation of the wall breaking machine is ensured all the time.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of a rotary valve.

FIG. 3 is a schematic view of an exploded view of the rotary valve with the drive element removed.

Fig. 4 is a schematic axial cross-section of a valve sleeve showing support ribs.

Fig. 5 is a schematic axial cross-section of a valve sleeve showing a mud hole.

Fig. 6 is a schematic view of the valve cartridge.

In the figure: 1. the main machine 11, the water tank 2, the stirring cup assembly 21, the slurry outlet nozzle 22, the processing cavity 3, the rotary valve 31, the valve seat 32, the valve core 321, the water delivery hole 322, the slurry outlet hole 33, the valve sleeve 331, the support rib 332, the isolation sealing rib 333, the isolation sealing area 334, the end sealing rib 335, the slurry discharge hole 336, the slurry discharge sealing rib 337, the balance sealing rib 34 and the driving element.

Detailed Description

The utility model is further described with reference to the following detailed description and accompanying drawings.

As shown in fig. 1, an automatic cleaning wall breaking machine comprises a main machine 1 and a stirring cup assembly 2 arranged on the main machine and provided with a processing cavity 23 inside, wherein a water tank and a water conveying pipeline connected with the water tank are arranged in the main machine, and the stirring cup assembly comprises a pulp outlet 21 and a rotary valve 3. As shown in fig. 2 and 3, the rotary valve includes a valve seat 31, a valve core 32 rotatably disposed in the valve seat, and a valve housing 33 disposed between the valve core and the valve seat for sealing, the valve core is provided with a water supply hole 321 and a slurry outlet hole 322, and the valve core is associated with a driving element 34 such as a motor, so that the valve core can be rotationally switched back and forth between a water supply level for communicating the water supply line with the processing chamber, a stop level, and a slurry outlet level for communicating the processing chamber with the slurry outlet nozzle.

Similar to the prior art, when the driving element drives the valve core to rotate, the valve core can rotate to a water delivery level, and the rotary valve at the moment is communicated with the stirring cavity and the water delivery pipeline through the water delivery hole on the valve core; or the rotary valve is rotated to a slurry outlet position, and the rotary valve at the moment is communicated with the stirring cavity and the slurry outlet nozzle through the slurry outlet hole on the valve core; or the stirring cavity is rotated to a stop position, and the stirring cavity and the slurry outlet nozzle and the stirring cavity and the water conveying pipeline are completely stopped at the moment.

In order to avoid overlarge friction resistance of a valve sleeve on a valve core when the valve core rotates, a gap supporting structure used for limiting a fit gap between the valve core and the valve sleeve can be arranged between the valve sleeve and the valve core to ensure that a stable fit gap is kept between the valve sleeve and the valve core for a long time, so that the valve sleeve forms a proper compression amount, the reliable sealing effect of the valve sleeve can be ensured, the defect that the valve sleeve has overlarge resistance or the valve sleeve quickly generates creep deformation due to excessive compression can be avoided, and the technical problem existing in the prior art for a long time can be conveniently and effectively solved.

Preferably, as shown in fig. 4, the gap supporting structure may be a plurality of supporting ribs 331 disposed on an inner side wall of the valve sleeve, and at this time, the supporting ribs are sealing ribs integrally connected with the valve sleeve, which not only can effectively ensure a sealing effect between the valve sleeve and the valve core, but also can greatly reduce a matching contact area between the valve sleeve and the valve core, thereby effectively reducing a frictional resistance when the valve core rotates, and facilitating assembly of the valve core and the valve sleeve;

or, the clearance support structure can also be a plurality of support ribs arranged on the outer side wall of the valve core, at the moment, the support ribs are rigid ribs integrally arranged on the outer side wall of the valve core, the sealing connection between the valve core and the valve sleeve can be realized through the interference fit of the rigid ribs and the inner side wall of the valve sleeve, the fit contact area between the valve core and the valve sleeve is obviously reduced, the friction resistance during the rotation of the valve core is favorably reduced, and the assembly of the valve core and the valve sleeve is convenient. In particular, the rigid ribs on the outer side wall of the valve core are not easy to damage, so that the service life is prolonged, and the effectiveness of the sealing effect is maintained for a long time.

In addition, the fit clearance between the valve sleeve and the valve core can be controlled to be 0.05-1.2mm, and the preferable range is 0.1-0.25 mm, so that the increase of the rotation resistance of the valve core due to the direct contact of the valve core and the valve sleeve caused by the over-small fit clearance is avoided; at the same time, a sufficient compression of the support ribs and a reliable sealing effect can be ensured.

As a preferable scheme, the supporting ribs arranged on the inner side wall of the valve housing specifically include a plurality of isolation sealing ribs 332 arranged at intervals, and the isolation sealing ribs are divided into a plurality of isolation sealing areas 333, so as to be beneficial to forming uniform and stable support for the valve core and prevent the valve core from deflecting relative to the valve housing and the valve seat. When the valve core rotates from the water delivery position to the pulp outlet position in the positive direction, the isolation sealing ribs respectively surround the water delivery hole and the pulp outlet hole, so that mutual sealing isolation between the water delivery hole and the pulp outlet hole can be ensured, and mutual mixing of pulp and water is avoided. That is to say, when the case rotated to a thick liquid position by water delivery position forward, water delivery hole and play thick liquid hole were located respectively and keep apart the sealed muscle and separate the different sealing region that forms, guaranteed that water delivery hole and play thick liquid hole can not appear in same the sealed region of keeping apart that encloses by keeping apart sealed muscle simultaneously.

Furthermore, the supporting ribs further include annular end sealing ribs 334 at two ends of the valve sleeve, so that two-point positioning support can be formed on the valve core in the axial direction, and reliable and stable positioning of the valve core relative to the valve sleeve is ensured. It will be appreciated that the end sealing ribs are circumferentially extending, thereby minimising frictional resistance to rotation of the spool.

Furthermore, one end of each isolation sealing rib is connected with the end sealing rib at the upper part, and the other ends of all the isolation sealing ribs are connected in parallel, so that a plurality of isolation sealing areas can be formed between the adjacent isolation sealing ribs, the length of each isolation sealing rib can be shortened as much as possible, the matching contact area between each isolation sealing rib and the valve core is reduced, and the friction resistance of the valve core during rotation is reduced. When the valve core rotates from the water delivery position to the slurry outlet position, at least two isolated sealing ribs surround the water delivery hole in the circumferential direction of the valve sleeve.

For the self-cleaning wall breaking machine, it is necessary to make the rotary valve communicate with the working chamber and the slurry outlet nozzle, and for this purpose, as shown in fig. 5, a slurry outlet 335 communicating with the working chamber may be provided on the valve housing. When the valve core rotates to the slurry outlet position, one end of the slurry outlet hole of the valve core is aligned with the slurry discharge hole of the valve sleeve, and the other end of the slurry outlet hole of the valve core is aligned with the slurry outlet nozzle, so that slurry in the working cavity can flow out from the slurry outlet nozzle through the rotary valve.

In addition, we can arrange the sealed muscle 336 of row's thick liquid that is located row thick liquid hole both sides at the valve barrel inside wall setting, arrange the sealed muscle of thick liquid lower extreme and the sealed muscle of tip of lower part and be connected, arrange the sealed muscle of thick liquid upper end and keep apart sealed muscle and be connected to enclose into a confined seal area, both can ensure the sealed of arranging the thick liquid hole, but also make full use of the sealing effect of the sealed muscle of tip, shorten the length of arranging the sealed muscle of thick liquid, reduce the frictional resistance when contact fitting area between case, the valve barrel and the case rotates then.

In addition, as shown in fig. 4, the gap supporting structure may further include a balance support rib 337 disposed on the inner sidewall of the valve housing and spaced from the slurry discharge sealing rib on the front side of the valve core in the rotation direction, both ends of the balance support rib are respectively connected to the end sealing ribs of the upper and lower ends, the balance support rib facilitates stable positioning of the valve core relative to the valve housing and the valve seat, so as to prevent the valve core from generating relative deflection when rotating, and at the same time, one more isolation sealing region may be formed for the slurry discharge hole, thereby effectively preventing the slurry discharge hole and the water delivery hole from being partially located in the same sealing region.

It can be understood that the rotation angle of the valve core corresponding to the water input level, the stop position and the pulp output position of the valve core should not exceed 360 degrees, and the water input hole and the pulp output hole on the valve core have certain apertures, so that we need to make enough central angle between two positions of the valve core to ensure the effective sealing and reliable positioning of the output hole and the pulp output hole when the valve core is at different positions. The central angle corresponding to two adjacent positions of the valve core needs to be reduced as much as possible, and three different positions of the valve core can be formed in a stroke of not more than one turn.

Therefore, as shown in fig. 6, the water delivery hole on the valve core can be bent into a V shape in the cross section of the valve core, and the central angle corresponding to the V-shaped water delivery hole can be controlled to be 106 degrees +/-5 degrees, so that the valve core has a proper angle when rotating between the water delivery level and the stop position, which is not only beneficial to effectively isolating and sealing the water delivery hole, but also convenient for the processing, manufacturing, assembling and positioning control of the rotary valve, especially the valve core when rotating.

It can be understood that, in the three positions of the valve core, the water delivery level is the most important and the occurrence frequency is the highest, and when water is delivered into the working cavity so as to break the wall of the food material into slurry or automatically clean the working cavity, the valve core is required to be at the water delivery level.

In order to control the rotation angle of the valve core conveniently, the rotation position precision of the valve core is controlled as follows: when the valve core deviates from the water delivery level by 10-20 degrees, the water delivery pipeline and the processing cavity are still communicated, so that the positioning control of the valve core at the water delivery level is facilitated. That is to say, we can suitably increase the angular deviation scope of water delivery level, simultaneously correspondingly reduce the angular deviation scope of play thick liquid position, stop the position, ensure the normal work of broken wall machine.

In order to ensure that the valve core can be accurately positioned at the water delivery position, the stop position and the pulp outlet position when rotating, the stirring cup component also comprises an elastically telescopic positioning salient point, and a positioning groove corresponding to the water delivery position, the stop position and the pulp outlet position is arranged on the valve core. When the valve core rotates to the water delivery position, the stop position and the pulp outlet position, the positioning salient points elastically extend out to be positioned in the corresponding positioning grooves, so that the valve core is accurately and reliably positioned at each position.

When the valve core rotates from one position to another position, the positioning groove can axially extrude the positioning salient points, so that the positioning salient points elastically retract, and the valve core can freely rotate at the moment. When the valve core rotates to the next position, the positioning salient points elastically reset and are ejected outwards, so that the valve core enters the next positioning groove and is positioned at the next position.

It should be noted that, the positioning bump may adopt the following structure: the device comprises a cylinder, wherein a necking is formed in the end portion of the cylinder, spherical bumps and a pressure spring are arranged in the cylinder, the spherical bumps are abutted against the necking by the pressure spring, and at the moment, no more than one half of the spherical bumps are exposed out of the necking. That is, when the spherical salient points are axially extruded, the spherical salient points can be retracted against the elasticity of the pressure spring; when the spherical salient points lose the extrusion force, the spherical salient points can be ejected outwards from the cylinder again under the action of the pressure spring.

It will be understood that various changes and modifications other than those described in the preferred embodiments described above may be made by those skilled in the art without departing from the spirit of the utility model, which is defined in the appended claims.

Claims (10)

1. The utility model provides an automatic wash broken wall machine, includes the host computer, sets up the inside stirring cup subassembly that has the process chamber on the host computer, is equipped with the water tank in the host computer and the conduit line of being connected with the water tank, and stirring cup subassembly includes out thick liquid mouth, changes the valve, change the valve and include the disk seat, rotationally set up case in the disk seat, set up and be used for sealed valve barrel between case and disk seat, be equipped with water delivery hole and grout outlet hole on the case, characterized by is equipped with the clearance bearing structure who is used for injecing the fit clearance between valve barrel and case.

2. An automatic cleaning wall breaking machine according to claim 1, wherein the gap supporting structure is a plurality of supporting ribs arranged on the inner side wall of the valve sleeve; or the clearance supporting structure is a plurality of supporting ribs arranged on the outer side wall of the valve core.

3. The automatic cleaning wall breaking machine as claimed in claim 1, wherein the fit clearance between the valve sleeve and the valve core is between 0.05-1.2 mm.

4. The automatic cleaning wall breaking machine as claimed in claim 2, wherein the support ribs provided on the inner side wall of the valve housing comprise a plurality of isolation sealing ribs, and when the valve core rotates from the water supply position to the slurry outlet position, the isolation sealing ribs surround the water supply hole and the slurry outlet hole, respectively, so as to isolate the water supply hole and the slurry outlet hole from each other.

5. An automatic cleaning wall breaking machine according to claim 4, wherein the support ribs comprise annular end sealing ribs at both ends of the valve housing.

6. The automatic cleaning wall breaking machine as claimed in claim 5, wherein one end of the isolation sealing rib is connected with the upper end sealing rib, the other end is connected in parallel, and when the valve core rotates from the water delivery position to the pulp outlet position, at least two isolation sealing ribs surround the water delivery hole.

7. An automatic cleaning wall breaking machine according to claim 4, wherein the valve sleeve is provided with a slurry discharge hole communicated with the working chamber, slurry discharge sealing ribs are provided on the inner side wall of the valve sleeve at both sides of the slurry discharge hole, the lower ends of the slurry discharge sealing ribs are connected with the end sealing ribs at the lower part, and the upper ends of the slurry discharge sealing ribs are connected with the isolation sealing ribs.

8. The automatic cleaning wall breaking machine according to claim 4, wherein the gap supporting structure further comprises a balance supporting rib spaced from the slurry discharging sealing rib on the front side of the valve core in the rotating direction, and two ends of the balance supporting rib are respectively connected with the end sealing ribs on the upper end and the lower end.

9. The automatic cleaning wall breaking machine as claimed in claim 4, wherein the water delivery holes on the valve core are bent into a V shape in the cross section of the valve core, and the central angle corresponding to the V-shaped water delivery holes is 106 ° ± 5 °.

10. The automatic cleaning wall breaking machine as claimed in claim 1, wherein the stirring cup assembly further comprises elastically retractable positioning protrusions, the valve core is provided with corresponding positioning grooves, and when the valve core rotates to the water outlet position, the stop position and the pulp outlet position, the positioning protrusions are located in the corresponding positioning grooves.

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