Novel surface cleaning device
By using the contact point design between steel balls and flat rivets and the use of nylon-plus fiberglass materials in the surface cleaner, the short life and poor pressure tolerance of the surface cleaner are solved when taking into account the needs of long commercial life and low household prices, and an efficient and economical cleaning effect is achieved.
Patent Information
- Application Number
- CN202420469152.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-03-12
AI Technical Summary
When existing surface cleaners take into account the needs of long commercial life and low household prices, they have problems such as short life, poor pressure tolerance and high price.
The steel ball is used as a rotary support structure and combined with the valve body design of nylon-glass fiber material, through the contact point design between the steel ball and the flat rivet, it reduces friction and wear, improves service life, and reduces production costs.
The long life and low cost production of surface cleaners are achieved, ensuring efficient cleaning performance in commercial and home use scenarios while reducing usage costs.
Smart Images
Figure CN222607311U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of surface cleaners, in particular to a novel surface cleaner. Background Art
[0002] The surface cleaner is one of the key components for producing pressure liquid jets, which can produce high-speed rotating water jets. This type of surface cleaner is normally connected to the spray gun in a quick-connect manner, has high cleaning efficiency, and is not prone to splashing water and causing secondary contamination to other surfaces, so it is widely favored by users.
[0003] The core part of the surface cleaner (excluding the cover) currently has the following three structures:
[0004] one) Figure 1 and Figure 2 This type of surface cleaner uses a bearing as a rotating support, and uses the spring and high-pressure water to tightly fit the first valve plate and the second valve plate together. When high-pressure water is ejected from the two nozzles, the nozzles are installed at an inclined angle α (see Figure 2 ), so that the water jet generates a reaction thrust in the horizontal direction, pushing the nozzle to rotate at high speed around the rotating valve core. The high-speed rotating valve core drives the second valve plate to rotate together and generates high-speed plane friction with the first valve plate, and forms a seal at the friction surface.
[0005] Due to the use of the first valve plate, the second valve plate and the bearing, the first valve plate and the second valve plate are very hard and wear-resistant, so the biggest advantage of this surface cleaner is that it has a relatively long service life and is more suitable for use in commercial occasions.
[0006] The biggest disadvantage of the surface cleaner with the above structure is that it is relatively expensive and large in size. It can be used in a limited number of occasions and the groups that can afford its price are relatively small. It is generally only used in commercial occasions, so the sales volume has always been relatively small.
[0007] two) Figure 3 and Figure 4 The main parts of this structure of surface cleaner are mainly plastic parts, except for the fixed valve core and the rotating valve sleeve. When high-pressure water is ejected from the two nozzles, the nozzle is installed at an inclined angle α (see Figure 4 ), so that the water jet generates a reaction thrust in the horizontal direction, pushing the nozzle to rotate at high speed around the fixed valve core.
[0008] Since most of the parts are made of plastic, the price is relatively cheap and more suitable for home use.
[0009] Since most of the parts of the surface cleaner of the above structure are made of plastic, its biggest disadvantage is that it can withstand relatively low pressure, and it is easy for the plastic parts to burst. In addition, it is relatively large in size and is generally only suitable for household products with relatively low pressure. Since the probability of plastic parts bursting is relatively high, the life of the surface cleaner of this structure is relatively short. Although the price is relatively cheap, the replacement frequency is relatively high, so the cost of use is relatively high.
[0010] three) Figure 5 and Figure 6 This type of surface cleaner is currently the most widely used. The biggest advantage of this surface cleaner is its compact structure, stable performance, moderate price and lifespan. It is a surface cleaner with a high cost performance ratio. When high-pressure water is ejected from the two nozzles, the nozzles are installed at an inclined angle α (see Figure 6 ), so that the water jet generates a reaction thrust in the horizontal direction, pushing the nozzle to rotate at high speed around the fixed valve core.
[0011] The surface cleaner does not use bearings or plastic parts, so it has a high cost performance ratio, making it applicable to a wide range of occasions and can be adapted to multiple fields such as business and home.
[0012] Although the surface cleaner of the above structure is cost-effective, due to the matching step between the fixed valve core and the rotating water diverter, when part of the pressure water flows along the gap between the fixed valve core and the rotating water diverter through the opening sealing ring to reach the matching step at the gasket, it will generate a relatively large upward thrust on the rotating water diverter and transfer the thrust to the gasket. Since the rotating water diverter rotates at high speed relative to the valve body, friction and wear are generated between the valve body and the gasket, as well as between the gasket and the rotating water diverter, which affects the life of the surface cleaner of this structure to a certain extent. In addition, the two water outlet pipes are connected to the rotating water diverter through threads. When the water outlet pipe or nozzle hits an obstacle during high-speed operation, the water outlet pipe will be at risk of detaching from the rotating water diverter. The detached water outlet pipe will be dangerous to the operator or others due to its high speed. Furthermore, if this surface cleaner is used for home use, the price is still relatively high, so it is rarely used for home use. Utility Model Content
[0013] The utility model provides a novel surface cleaner which can meet the requirement of long service life for commercial use and the advantage of low price for household use.
[0014] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a new type of surface cleaner, including a joint, the bottom of which is connected to a rotating valve sleeve, a rotating valve core is arranged in the rotating valve sleeve, both ends of the rotating valve core extend out of the rotating valve sleeve and are connected to a valve body, the bottom of the valve body is connected to a rotating valve core, the bottom of the rotating valve core is connected to a water outlet pipe, and a nozzle is connected to each side of the water outlet pipe.
[0015] Furthermore, a water inlet filter is provided at the water inlet of the joint.
[0016] Furthermore, a steel ball is arranged at the upper end of the rotary valve core, and a flat rivet is arranged in the valve body, and the flat rivet is abutted against the steel ball.
[0017] Furthermore, a first O-ring is provided between the valve body and the rotating valve core.
[0018] Furthermore, a third O-ring is provided between the water outlet pipe and the rotary valve core.
[0019] Furthermore, a second O-ring is provided between the rotating valve sleeve and the rotating valve core.
[0020] Furthermore, a U-shaped pin extending into the valve body is arranged outside the valve body.
[0021] Furthermore, a transition sleeve is connected to the bottom of the rotary valve core, and both ends of the water outlet pipe pass through the transition sleeve.
[0022] Furthermore, a first blind end and a second blind end are provided in the valve body.
[0023] Furthermore, an opening sealing ring is provided between the valve body and the rotating valve core.
[0024] Furthermore, third blind ends are provided at both ends of the water outlet pipe.
[0025] Furthermore, a pressure plate is connected to the bottom end of the valve body.
[0026] Furthermore, a fixed valve sleeve is arranged between the valve body and the rotating valve core.
[0027] The novel surface cleaner described in the utility model has the following beneficial effects:
[0028] In the present application, a steel ball is used as a structural form of rotation support. When in use, the place where the steel ball contacts the flat rivet is a plane, so the flat rivet and the steel ball theoretically only have one point of contact, and this point is on the central axis of the rotating valve core. Under the action of -2Fz+G, the flat rivet and the steel ball will produce a certain degree of extrusion deformation. Since these two parts are relatively hard steel parts, their actual deformation is relatively small, which makes the linear velocity of the relative movement of the flat rivet and the steel ball at the contact point during the cleaning process very small, thereby determining that their wear will be very small, making their service life quite long. At the same time, since such a structure is very compact, less material is consumed during production, so the production cost is relatively low.
[0029] 2. Since the valve body material is made of nylon and glass fiber, the price advantage is obvious, which reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a structural schematic diagram of the first prior art surface cleaner of the utility model;
[0031] Figure 2 It is a partial side view of a first prior art surface cleaner of the utility model;
[0032] Figure 3 It is a structural schematic diagram of a second prior art surface cleaner of the utility model;
[0033] Figure 4 It is a partial side view of a second prior art surface cleaner of the utility model;
[0034] Figure 5 It is a structural schematic diagram of a surface cleaner of the third prior art of the utility model;
[0035] Figure 6 It is a partial side view of a third prior art surface cleaner of the utility model;
[0036] Figure 7 It is a structural schematic diagram of the first embodiment of the surface cleaner of the utility model;
[0037] Figure 8 It is a partial side view of the first embodiment of the surface cleaner of the utility model;
[0038] Fig. 9 This is a force decomposition diagram of the surface cleaner of the utility model;
[0039] Fig.10 This is a schematic diagram of the structure of the rotary valve sleeve of the utility model;
[0040] Fig.11This is a schematic diagram of the connection between the valve body and the rotating valve core of the utility model;
[0041] Fig.12 It is a schematic diagram of the lower surface of the valve sleeve of the utility model;
[0042] Fig.13 This is a schematic diagram of the connection between the valve body and the rotating valve core of the utility model.
[0043] Fig.14 This is a schematic diagram of the connection between the rotary valve core and the pressure plate of the utility model;
[0044] Fig.15 It is a schematic diagram of the connection between the valve body and the U-pin of the utility model;
[0045] Fig.16 It is a cross-sectional view of the valve body of the utility model;
[0046] Fig.17 It is a cross-sectional view of the rotating valve core of the utility model;
[0047] Fig.18 It is a structural schematic diagram of a second embodiment of the surface cleaner of the utility model;
[0048] Fig.19 It is a partial side view of the second embodiment of the surface cleaner of the utility model;
[0049] Fig. 20 This is a structural schematic diagram of the second embodiment of the surface cleaner of the utility model without the joint;
[0050] In the figure: 1. water inlet filter; 2. joint; 3. first O-ring; 4. rotating valve sleeve; 5. U-shaped pin; 6. second O-ring; 7. rotating valve core; 8. flat rivet; 9. steel ball; 10. first blind end; 11. valve body; 12. opening sealing ring; 13. second blind end; 14. rotating valve core; 15. pressure plate; 16. transition sleeve; 17. third O-ring; 18. outlet pipe; 19. nozzle; 20. third blind end; 21. fixed valve sleeve; 22. valve sleeve vertical flow channel; 23. valve sleeve horizontal flow channel; 24. rotating valve core flow channel; 25. receiving groove; 26. bolt groove; 27. inner step; 28. rivet interface; 29. valve body vertical flow channel; 30. valve body horizontal flow channel; 31. drainage channel; 32. U-shaped pin groove. DETAILED DESCRIPTION
[0051] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0053] Embodiment 1:
[0054] See also Figure 7-Figure 17 The utility model provides a novel surface cleaner, comprising a joint 2, wherein the upper water inlet of the joint 2 is connected to the spray gun, and the lower water outlet of the joint 2 is sleeved with a rotating valve sleeve 4, wherein the rotating valve sleeve 4 is provided with a valve sleeve cross flow channel 23 and a valve sleeve vertical flow channel 22 communicating with the valve sleeve cross flow channel 23, and the valve sleeve vertical flow channel 22 is communicated with the joint 2,
[0055] A rotating valve core 7 connected to the rotating valve sleeve 4 is inserted into the valve sleeve horizontal flow channel 23 of the rotating valve sleeve 4, so that water flowing down from the rotating valve sleeve 4 can enter the rotating valve core 7. A rotating valve core flow channel 24 connected to the valve sleeve vertical flow channel 22 is opened in the rotating valve core 7.
[0056] The two ends of the rotating valve core 7 extend out of the valve sleeve cross-flow channel 23 of the rotating valve sleeve 4, and the protruding parts at the two ends are covered with a valve body 11 which is in communication with the rotating valve core 7.
[0057] Specifically, the valve body 11 is provided with a valve body vertical flow channel 29 connected to the rotating valve core flow channel and a valve body transverse flow channel 30 connected to the valve body vertical flow channel 29. At the same time, in order to facilitate the opening of the valve body vertical flow channel 29 and the valve body transverse flow channel 30, the valve body vertical flow channel 29 and the valve body transverse flow channel 30 are drilled from the surface of the valve body 11 to the inside of the valve body 11. When in use, the openings of the valve body vertical flow channel 29 and the valve body transverse flow channel 30 are plugged with a second blind head 13 to prevent water loss.
[0058] A receiving groove 25 is provided below the valve body 11, and a rotating valve core 14 capable of rotating around the central axis of the receiving groove 25 is embedded in the receiving groove 25. The upper part of the rotating valve core 14 is embedded in the receiving groove 25, and the lower part is located outside the receiving groove 25. The rotating valve core 14 is connected to the valve body 11. Specifically, a rotating valve core flow channel connected to the valve body cross flow channel 30 is provided in the rotating valve core 14.
[0059] The bottom of the rotating valve core 14 is connected to a water outlet pipe 18 connected to the rotating valve core 14, and the surface of the water outlet pipe 18 is provided with a water outlet pipe inlet connected to the flow channel of the rotating valve core. A nozzle 19 is connected to each side of the water outlet pipe 18, and the nozzle 19 includes a left nozzle and a right nozzle, wherein the axis of the left nozzle forms an angle a with the axis of the water outlet pipe 18, and the axis of the right nozzle forms an angle -a with the axis of the water outlet pipe 18.
[0060] During operation, the water sprayed from the spray gun passes through the joint 2, the rotating valve sleeve 4, the rotating valve core 7, the valve body 11, the rotating valve core 14, the water outlet pipe 18, and then sprayed from the left nozzle 19 and the right nozzle 19.
[0061] In this embodiment, since the water outlet pipe 18 is a complete water pipe, in order for water to flow out from both ends, third blind plugs 20 are provided at both ends of the water outlet pipe 18 to prevent water from flowing out from both ends of the water outlet pipe 18.
[0062] At the same time, in this embodiment, a water inlet filter 1 is provided at the water inlet of the connector 2. When water in the spray gun enters the connector 2, foreign matter in the water is filtered out by the water inlet filter 1 to prevent the foreign matter from eventually blocking the spraying of the nozzle 19.
[0063] In this embodiment, a groove is provided at the upper end of the rotary valve core 14, and a steel ball 9 is rotatably provided in the groove. The radius of the opening of the groove is smaller than the radius of the steel ball 9, so that the steel ball 9 will not fall out of the groove.
[0064] At the same time, a riveting interface 28 is provided on the bottom surface of the receiving groove 25 , and a flat rivet 8 is riveted in the riveting interface 28 , and the flat rivet 8 is abutted against the steel ball 9 .
[0065] At the same time, due to the opening of the rivet joint 28, water will flow into the valve body 11 from the rivet joint 28 and accumulate in the receiving groove 25. Therefore, a drainage channel 31 is opened on the valve body 11, and the water inlet of the drainage channel 31 is located in the receiving groove 25 and between the valve body 11 and the rotating valve core 14. Similarly, the opening of the drainage channel 31 is plugged with a first blind plug 10.
[0066] In this embodiment, for waterproof considerations, a first O-ring 3 is provided between the valve body 11 and the rotating valve core 7, a third O-ring 17 is provided between the water outlet pipe 18 and the rotating valve core 14, a second O-ring 6 is provided between the rotating valve sleeve 4 and the rotating valve core 7, and an opening sealing ring 12 is provided between the valve body 11 and the rotating valve core 14.
[0067] At the same time, a U-shaped pin 5 is inserted into the valve body 11, and the position of the valve body 11 and the rotating valve core 7 is fixed by the U-shaped pin 5, thereby fixing the position of the valve body 11, the rotating valve core 7, and the rotating valve sleeve 4. Specifically, two U-shaped pin holes are provided on the surface of the valve body 11, and the two ends of the U-shaped pin 5 are inserted into the U-shaped pin holes so as to extend into the interior of the valve body 11. At the same time, a U-shaped pin groove 32 is provided on the surface of the rotating valve core 7, and the width of the U-shaped pin 5 is smaller than the radius of the rotating valve core 7 and larger than the radius of the U-shaped pin groove 32. The thickness of the U-shaped pin 5 is the same as the width of the U-shaped pin groove 32, so that the position of the valve body 11 and the rotating valve core 7 is fixed by the insertion of the U-shaped pin 5.
[0068] In this embodiment, the bottom end of the valve body 11 is connected with a pressing plate 15 by bolts, and the position of the valve body 11 and the rotating valve core 14 is fixed by the pressing plate 15. Specifically, a plurality of bolt grooves 26 are provided on the lower surface of the valve body 11, and bolt holes used in conjunction with the bolt grooves 26 are provided at corresponding positions of the pressing plate 15. At the same time, a circular hole and a rectangular hole connected to the circular hole are provided on the pressing plate 15, and the width of the rectangular hole is smaller than the radius of the circular hole, and the radius of the circular hole is smaller than the radius of the rotating valve core 14. An inner step 27 is provided on the surface of the rotating valve core 14, and the radius of the inner step 27 is smaller than the width of the rectangular hole. When in use, after the rotating valve core 14 is inserted into the valve body 11 from the position of the receiving groove 25, the positioning between the two is formed after the pressing plate 15 is inserted into the inner step 27, and then locked by bolts.
[0069] At the same time, the rotary valve core 14 and the water outlet pipe 18 are connected via a transition sleeve 16. Specifically, an external thread is provided on the bottom side of the rotary valve core 14, and a threaded hole and a water pipe hole connected to the threaded hole are provided on the surface of the transition sleeve 16. When in use, both ends of the water outlet pipe 18 extend out from the water pipe holes, and then the transition sleeve 16 is installed on the rotary valve core 14 through the threaded hole and the external thread, thereby connecting the water outlet pipe 18 to the rotary valve core 14.
[0070] like Fig. 9As shown, when the high-pressure water jet of the surface cleaner is ejected from the nozzle 19, a force F is generated, and the force F generates a component force Fr in the circumferential direction rotating around the central axis of the rotating valve core 14. The reaction force of the component force Fr can push the nozzle 19 to rotate around the central axis of the rotating valve core 14; in addition, the force F will also generate a component force Fz in the direction parallel to the central axis of the rotating valve core 14, and this force Fz can act on the surface to be cleaned to clean it.
[0071] During the cleaning process of the surface cleaner, the force Fz exerted on the ground by the high-pressure water jet generated by the nozzle 19 will form a reaction force -Fz, and the two nozzles 19 will generate an upward thrust of -2Fz. Assuming that the weight of the nozzle 19, the water outlet pipe 18, the transition sleeve 16, the rotating valve core 14 and the steel ball 9 is G, a resultant force of -2Fz+G is formed. This resultant force is the upward thrust of the steel ball 9 on the flat rivet 8. Since the steel ball 9 is used as a rotating support, and the place on the flat rivet 8 that contacts the steel ball 9 is a plane, the flat rivet 8 and the steel ball 9 theoretically only have one point of contact, and this point is on the central axis of the rotating valve core 14. Under the action of -2Fz+G, the flat rivet 8 and the steel ball 9 will produce a certain degree of extrusion deformation. Since these two parts are relatively hard steel parts, their actual deformation is relatively small, and the contact surface generated by the deformation is very small, which makes the linear speed of the relative movement of the flat rivet 8 and the steel ball 9 at the contact point during the cleaning process very small, thereby determining that their wear will be very small, making their service life quite long. Since such a structure is very compact, less material is consumed during production, so the production cost is relatively low.
[0072] Embodiment 2:
[0073] like Figure 18-20 In this embodiment, the valve body 11 is made of nylon and glass fiber, and a fixed valve sleeve 21 is embedded between the valve body 11 and the rotating valve core 14, and the fixed valve sleeve 21 is made of metal material.
[0074] Specifically, the fixed valve sleeve 21 is installed in the receiving groove 25 and contacts the rotating valve core 14 . The fixed valve sleeve 21 is fixed on the valve body 11 by gluing.
[0075] Such a structure has little change in pressure resistance and life compared with the first embodiment, but because the valve body 11 is made of nylon plus glass fiber, the price advantage is obvious.
[0076] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.
[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A novel surface cleaner, characterized in that: It includes a joint, the bottom of which is connected to a rotating valve sleeve, a rotating valve core is arranged in the rotating valve sleeve, two ends of the rotating valve core extend out of the rotating valve sleeve and are connected to a valve body, the bottom of the valve body is connected to a rotating valve core, the bottom of the rotating valve core is connected to a water outlet pipe, each side of the water outlet pipe is connected to a nozzle, a steel ball is arranged on the upper end of the rotating valve core, and a flat rivet is arranged in the valve body, and the flat rivet is abutted against the steel ball.
2. A novel surface cleaning device according to claim 1, characterized in that: A water inlet filter is arranged at the water inlet of the joint.
3. A novel surface cleaning device according to claim 1, characterized in that: A first O-ring is arranged between the valve body and the rotating valve core.
4. A novel surface cleaner according to claim 1, characterized in that: A third O-ring is arranged between the water outlet pipe and the rotating valve core, and a second O-ring is arranged between the rotating valve sleeve and the rotating valve core.
5. A novel surface cleaner according to claim 1, characterized in that: An opening sealing ring is arranged between the valve body and the rotating valve core.
6. A novel surface cleaning device according to claim 1, characterized in that: The valve body is provided with a U-shaped pin extending into the valve body.
7. A novel surface cleaning device according to claim 1, characterized in that: The bottom of the rotary valve core is connected with a transition sleeve, and both ends of the water outlet pipe pass through the transition sleeve.
8. A novel surface cleaning device according to claim 1, characterized in that: A first blind end and a second blind end are arranged in the valve body, and a third blind end is arranged at both ends of the water outlet pipe.
9. A novel surface cleaning device according to claim 1, characterized in that: The bottom end of the valve body is connected with a pressure plate.
10. A novel surface cleaner according to claim 1, characterized in that: A fixed valve sleeve is arranged between the valve body and the rotating valve core.