Autorotation spray head and false tooth engraving and milling machine

Abstract

The utility model discloses an autorotation nozzle and denture engraving and milling machine, including fixed body, connector and rotator, fixed body internal is provided with water injection hole, the inner wall of water injection hole is provided with first matching groove, water injection hole internal is rotatingly provided with connector, connector internal is provided with connecting hole, and the rotator is provided with second matching groove. A second matching groove is formed in the outer side of the connecting body, a rotating body is arranged at the bottom of the fixing body, the rotating body is detachably connected with the connecting body, a cavity is formed in the rotating body and communicates with the water injection hole through a connecting hole, and a plurality of water spraying holes are formed in the inner wall of the rotating body in a penetrating mode; the rotating body can drive the connecting body to rotate and spray water through limiting of the first matching groove and the second matching groove and the multiple obliquely-formed water spraying holes, meanwhile, through detachable connection of the connecting body and the rotating body, rapid assembly and disassembly of the self-rotating spray head can be achieved, and replacement or maintenance of the rotating body, the connecting body or the fixed body is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic cleaning, in particular to a self-rotating nozzle and a denture carving and milling machine. Background Art

[0002] Automatic rotating sprinkler heads are relatively common. They generally utilize an inclined nozzle set on the sprinkler head. Under the opposite force of water pressure, the sprinkler head generates a rotational force, which drives the sprinkler head to rotate on its own. However, existing self-rotating sprinkler heads generally include a connecting rod and a sprinkler head rotating on the connecting rod. For example, the Chinese patent with announcement number CN2407841Y discloses a "self-rotating sprinkler head", which includes a hollow tube and a turntable. The outer peripheral wall of the turntable is provided with multiple water spray holes. The hollow tube is nested in the inner cavity of the turntable through its outer circumference, shaft shoulder and shaft retaining ring, so that the turntable can rotate around the hollow tube and rotate on its own. However, the shaft retaining ring of the above patent is located in the cavity of the turntable. When the hollow tube or turntable needs to be replaced, it is also necessary to open the top of the turntable and remove the shaft retaining ring to separate the hollow tube from the turntable, which makes the replacement or disassembly steps of the sprinkler head components cumbersome.

[0003] In view of this, the existing technology still needs to be improved and developed. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a self-rotating nozzle and a denture carving and milling machine, aiming to solve the problem of complicated replacement or disassembly steps of the existing self-rotating nozzle.

[0005] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0006] A self-rotating sprinkler head, comprising:

[0007] A fixed body; the fixed body has a water injection hole inside, and the inner wall of the water injection hole is provided with a first matching groove;

[0008] A connector rotatably disposed in the water injection hole; a connecting hole is provided inside the connector, and a second matching groove is provided on the outside of the connector, wherein the first matching groove cooperates with the second matching groove to limit the connector;

[0009] A rotating body is arranged at the bottom of the fixed body and is detachably connected to the connecting body; a cavity is provided inside the rotating body, and the cavity is connected to the water injection hole through a connecting hole; a plurality of water spray holes are provided through the inner wall of the rotating body, and the center lines of the water spray holes deviate from the rotation center of the rotating body, and the deviation directions of the plurality of water spray holes are the same.

[0010] Furthermore, a bearing is provided on the inner wall of the first mating groove, the inner wall of the second mating groove is matched with the inner wall of the bearing, and the bearing is located between the bottom wall of the first mating groove and the top wall of the second mating groove.

[0011] Furthermore, a first mounting groove is provided on the inner wall of the water injection hole, a first sealing ring is provided in the first mounting groove, a second mounting groove is provided on the outer surface of the connector, and a second sealing ring is provided in the second mounting groove.

[0012] Furthermore, a hexagonal groove is provided on the top of the connector, a first thread is provided on the outer surface of the bottom of the connector, and a threaded fixing hole is provided on the top of the rotating body, and the threaded fixing hole is threadedly matched with the connector.

[0013] Furthermore, a fixing groove is provided at the bottom of the connector, the first thread is provided on the outer surface of the fixing groove, the threaded fixing hole cooperates with the first thread on the outer side of the fixing groove, and the top wall of the rotating body is supported by the top wall of the fixing groove.

[0014] Furthermore, the opening direction of the water spray hole is opposite to the screwing direction of the thread of the rotating body and the connecting body.

[0015] Furthermore, a stepped groove is provided on the outer side of the fixing body, and a second thread is provided on the outer surface of the stepped groove for fixing the fixing body to an external device.

[0016] Furthermore, the fixing groove is located outside the fixing body, and a gap is provided between the rotating body and the fixing body.

[0017] Furthermore, a water spray hole is provided at the bottom of the rotating body, and the water spray hole is in a fan shape that gradually increases from the inside of the rotating body to the outside of the rotating body.

[0018] A denture carving and milling machine, comprising the self-rotating nozzle as described above, and further comprising:

[0019] A housing; a switch door is provided on one side of the housing;

[0020] A plurality of threaded holes are provided on the top of the housing; the threaded holes cooperate with the second thread of the fixing body, and the fixing body is connected to the external water inlet pipe;

[0021] The drain outlet is arranged at the bottom of the shell.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] In the utility model, a water injection hole is provided inside the fixed body, a first matching groove is provided on the inner wall of the water injection hole, a connecting body is rotatably provided inside the water injection hole, a connecting hole is provided inside the connecting body, and a second matching groove is provided on the outer side of the connecting body, the first matching groove cooperates with the second matching groove, a rotating body is provided at the bottom of the fixed body, the rotating body and the connecting body are detachably connected, a cavity is provided inside the rotating body, the cavity is connected with the water injection hole through the connecting hole, and a plurality of water spray holes are penetrated on the inner wall of the rotating body, the center line of the water spray hole deviates from the rotation center of the rotating body, and the deviation direction of the plurality of water spray holes is the same; the first matching groove and the second matching groove are used for limiting, and the plurality of inclined water spray holes can make the rotating body drive the connecting body to rotate and spray water, and at the same time, the detachable connection between the connecting body and the rotating body can realize rapid assembly and disassembly of the self-rotating sprinkler head, and it is also more convenient to replace or repair the rotating body, the connecting body or the fixed body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of the nozzle of the utility model.

[0026] Figure 3 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0027] Figure 4 This is a schematic diagram of the fixed body structure of the utility model.

[0028] Figure 5 This is a schematic diagram of the connector structure of the utility model.

[0029] Figure 6 This is a schematic diagram of the rotating body structure of the utility model.

[0030] Figure 7 This is a schematic diagram of the shell structure of the utility model.

[0031] Figure 8 This is a schematic diagram of the drain outlet structure of the utility model.

[0032] The numbers in the figure are as follows: 1. fixed body; 11. water injection hole; 12. first matching groove; 13. first mounting groove; 14. first sealing ring; 15. stepped groove; 2. connecting body; 21. connecting hole; 22. second mounting groove; 23. second matching groove; 24. second sealing ring; 25. hexagonal groove; 26. fixed groove; 3. rotating body; 31. water spray hole; 32. threaded fixing hole; 4. bearing; 5. housing; 51. switch door; 52. drain outlet. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and effect of the present invention more clear and explicit, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0036] The top of the hollow tube of the self-rotating nozzle in the prior art is provided with a stepped groove 15, the turntable is clamped on the stepped groove 15, and the top of the stepped groove 15 is provided with a shaft retaining ring; during installation, it is necessary to open the top of the turntable, match the stepped groove 15 with the turntable, and then clamp the shaft retaining ring to close the top of the turntable; during disassembly, it is also necessary to open the top of the turntable to remove the shaft retaining ring, so that the hollow tube and the turntable are separated, which makes the installation and disassembly of the nozzle cumbersome and affects work efficiency.

[0037] In view of the shortcomings of the prior art, this embodiment provides a self-rotating nozzle and a denture carving and milling machine, which can be specifically described as follows:

[0038] As attached Figure 1 and attached Figure 2As shown, a self-rotating sprinkler includes a fixed body 1, a connecting body 2 and a rotating body 3. The fixed body 1 is cylindrical and is provided with a water injection hole 11 inside. The water injection hole 11 runs through the entire fixed body 1. The inner wall of the water injection hole 11 is provided with a first matching groove 12 to form an upward step at the bottom of the water injection hole 11. The connecting body 2 is provided inside the water injection hole 11. The outer side of the connecting body 2 is provided with a second matching groove 23 to form a downward step on the outer surface of the connecting body 2. The side wall diameter of the second matching groove 23 is the same as that of the water injection hole 11, and the side wall diameter of the first matching groove 12 is the same as that of the connecting body 2, so that the second matching groove 23 is aligned with the first matching groove 1. 2-way cooperation, the connecting body 2 can be limited by the first cooperation groove 12 to prevent the connecting body 2 from sliding down and out of the water injection hole 11; a rotating body 3 is provided at the bottom of the fixed body 1, and the rotating body 3 is detachably connected to the connecting body 2, and a cavity is provided inside the rotating body 3, and the cavity is connected with the water injection hole 11 through the connecting hole 21, and a plurality of water spray holes 31 are penetrated on the inner wall of the rotating body 3, and the center line of the water spray hole 31 deviates from the rotation center of the rotating body 3, and the deviation direction of the plurality of water spray holes 31 is the same, so that after a certain pressure of water is injected into the cavity, the water is sprayed out from the water spray hole 31 at an angle, and exerts a reaction force on the rotating body 3, causing the rotating body 3 to rotate.

[0039] Specifically, the connector 2 is first placed in the water injection hole 11 of the fixed body 1. As the connector 2 slides down, the first matching groove 12 matches the second matching groove 23, and the bottom of the connector 2 protrudes from the bottom wall of the fixed body 1. Then the rotating body 3 is connected to the bottom of the connector 2, and the water injection hole 11 is connected to the external water inlet pipe; through the cooperation of the first matching groove 12 and the second matching groove 23, and the rotating body 3 is located on the bottom wall of the fixed body 1, the rotating body 3 can be matched with the connector 2 to be clamped on the fixed body 1 and can be rotated in the water injection hole 11; by injecting water into the cavity, the rotating body 3 can drive the connector 2 to rotate and spray water. At the same time, through the detachable connection between the connector 2 and the rotating body 3, the rapid assembly and disassembly of the rotating nozzle can be realized, and it is also more convenient to replace or repair the rotating body 3, the connector 2 or the fixed body 1.

[0040] In this embodiment, as shown in the attached Figure 2 and attached Figure 3As shown, a bearing 4 is provided on the inner wall of the first matching groove 12, and the bearing 4 is coaxially arranged with the water injection hole 11. The inner wall of the second matching groove 23 matches with the inner wall of the bearing 4, and the bearing 4 is located between the bottom wall of the first matching groove 12 and the top wall of the second matching groove 23, that is, the bearing 4 is located between the two steps of the fixed body 1 and the connecting body 2; after the external water pump is connected, the connecting body 2 and the rotating body 3 rotate in the water injection hole 11, and the connecting body 2 drives the inner ring of the bearing 4 to rotate relative to the outer ring of the bearing 4. By rotating through the bearing 4 in the second matching groove 23 and the first matching groove 12, not only the rotation speed of the rotating body 3 can be increased, but also the excessive friction between the fixed body 1 and the connecting body 2 can be avoided.

[0041] In this embodiment, as shown in the attached Figure 3 , Attachment Figure 4 and attached Figure 5 As shown, a first mounting groove 13 is provided on the inner wall of the water injection hole 11, and a first sealing ring 14 is provided inside the first mounting groove 13, and the water injection hole 11 and the side wall of the second matching groove 23 are sealed by the first sealing ring 14, and a second mounting groove 22 is provided on the outer surface of the connecting body 2, and a second sealing ring 24 is provided in the second mounting groove 22, and the second sealing ring 24 is used to seal the side wall of the connecting body 2 and the side wall of the first matching groove 12. The first mounting groove 13 and the second mounting groove 22 are both annular grooves; the first sealing ring 14 and the second sealing ring 24 can effectively seal the connecting body 2 and the fixed body 1 to avoid water leakage at the connection between the connecting body 2 and the fixed body 1.

[0042] In this application, an embodiment is shown in the attached Figure 5 As shown, a hexagonal groove 25 is provided on the top of the connecting body 2, and the hexagonal groove 25 is a groove and is arranged coaxially with the connecting hole 21. The bottom outer surface of the connecting body 2 is provided with a first thread, that is, the outer surface of the connecting body 2 protruding from the bottom wall of the fixed body 1 is provided with a first thread, and a threaded fixing hole 32 is provided on the top of the rotating body 3, and the threaded fixing hole 32 cooperates with the first thread of the connecting body 2 to fix the rotating body 3 to the connecting body 2; the hexagonal groove 25 is used to cooperate with a hexagonal wrench. Due to the rotational cooperation between the connecting body 2 and the fixed body 1, it is not convenient for the rotating body 3 to be threadedly cooperated with the first thread of the connecting body 2 without fixing the connecting body 2. The hexagonal wrench is first inserted into the hexagonal groove 25 to fix the connecting body 2, and then the threaded fixing hole 32 of the rotating body 3 cooperates with the first thread of the connecting body 2 and is rotationally fixed.

[0043] In this embodiment, a fixing groove 26 is provided at the bottom of the connecting body 2. The setting of the fixing groove 26 forms a step at the bottom of the connecting body 2. The first thread is provided on the outer surface of the fixing groove 26, and the threaded fixing hole 32 cooperates with the first thread on the outside of the fixing groove 26 to fix the rotating body 3 and the connecting body 2; at the same time, the top wall of the rotating body 3 is supported by the top wall of the fixing groove 26 to avoid the connection section between the rotating body 3 and the connecting body 2 being too long and pulling the connecting body 2, so that the second matching groove 23 of the connecting body 2 squeezes the first matching groove 12, causing damage to the connecting body 2 or the fixed body 1; through the setting of the fixing groove 26, the length of the connection section between the rotating body 3 and the connecting body 2 can be limited, so that the rotating body 3 and the connecting body 2 are stuck at the step on the water injection hole 11 and are rotatably connected with the fixed body 1.

[0044] Furthermore, a sink groove is provided on the top of the rotating body 3 , and the diameter of the sink groove is the same as the diameter of the fixing groove 26 , so that the sink groove can be engaged with the fixing groove 26 , thereby facilitating the fitting and fixation of the rotating body 3 and the connecting body 2 .

[0045] In this embodiment, the opening direction of the water spray hole 31 is opposite to the screwing direction of the matching threads of the rotating body 3 and the connecting body 2; the opening direction of the water spray hole 31 is in an inclined state. When spraying water, the pressure of the water will act on the rotating body 3 and cause the rotating body 3 to rotate in the opposite direction, and its rotation direction is opposite to the opening direction of the water spray hole 31. By setting the screwing direction of the matching threads of the rotating body 3 and the connecting body 2 to be the same as the rotation direction of the rotating body 3, the matching threads of the rotating body 3 and the connecting body 2 can be tightened while spraying water, which can effectively avoid the problem of loose threads between the rotating body 3 and the connecting body 2.

[0046] In this embodiment, a stepped groove 15 is provided on the outer side of the fixing body 1 , and a second thread is provided on the outer surface of the stepped groove 15 , which facilitates the fixation of the fixing body 1 to the external device.

[0047] Furthermore, the second thread of the stepped groove 15 and the threaded connection of the external device are screwed in the same direction as the rotation direction of the rotating body 3, so that the fixed body 1 can play a certain tightening role under the action of the rotation of the rotating body 3 and the connecting body 2, thereby avoiding the problem of the thread of the fixed body 1 and the external device being loosened due to vibration during cleaning.

[0048] In this embodiment, the fixing groove 26 is located on the outside of the fixed body 1, so that the rotating body 3 is located on the outside of the fixed body 1, and a gap is set between the top wall of the rotating body 3 and the bottom wall of the fixed body 1, thereby avoiding friction between the rotating body 3 and the bottom wall of the fixed body 1 during rotation, which may reduce the service life of the rotating body 3 or the fixed body 1.

[0049] Furthermore, the outer side wall of the connecting body 2 is clearance-fitted with the side wall of the first matching groove 12, and the side wall of the second matching groove 23 is also clearance-fitted with the side wall of the water injection hole 11. The connecting body 2 and the fixed body 1 rotate through the bearing 4 and are sealed by the first sealing ring 14 and the second sealing ring 24.

[0050] As attached Figure 1 and attached Figure 6 As shown, the inner side wall and the inner bottom wall of the rotating body 3 are both provided with water spray holes 31, and the water spray holes 31 located on the inner side wall of the rotating body 3 can be provided in multiple layers and each water spray hole 31 is arranged at intervals, and the water spray holes 31 between the upper and lower layers are staggered to provide the maximum rotational force for the rotating body 3; the water spray holes 31 are in a fan shape that gradually increases from the inside of the rotating body 3 to the outside of the rotating body 3. Through the fan-shaped arrangement, the area of ​​water sprayed by the rotating body 3 can be effectively expanded to increase the coverage area of ​​the nozzle.

[0051] As attached Figure 7 and attached Figure 8 As shown, the present application also provides a denture carving and milling machine, including the above-mentioned self-rotating nozzle, and also including a shell 5, multiple threaded holes and a drain outlet 52. The shell 5 is provided with a denture carving and milling device, and a switch door 51 is provided on one side of the shell 5 to facilitate the placement or removal of materials. The top of the shell 5 is provided with multiple threaded holes, which cooperate with the second thread of the fixed body 1 so that the fixed body 1 is fixed on the shell 5. The water injection hole 11 of the fixed body 1 is connected to the external water inlet pipe to inject water into the water injection hole 11; the bottom of the shell 5 is provided with a drain outlet 52. When the nozzle cleans the inner wall of the shell 5 or is cleaning, water can be discharged and impurities cleaned through the drain outlet 52.

[0052] Furthermore, there are four threaded holes, which are respectively arranged at the four corners of the top of the shell 5.

[0053] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that adhere to the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only; the true scope and spirit of the invention are indicated by the claims.

Claims

1. A self-rotating nozzle, characterized in that: include: A fixed body; the fixed body has a water injection hole inside, and the inner wall of the water injection hole is provided with a first matching groove; A connector rotatably disposed in the water injection hole; a connecting hole is provided inside the connector, and a second matching groove is provided on the outside of the connector, wherein the first matching groove cooperates with the second matching groove to limit the connector; A rotating body is arranged at the bottom of the fixed body and is detachably connected to the connecting body; a cavity is provided inside the rotating body, and the cavity is connected to the water injection hole through a connecting hole; a plurality of water spray holes are provided through the inner wall of the rotating body, and the center lines of the water spray holes deviate from the rotation center of the rotating body, and the deviation directions of the plurality of water spray holes are the same.

2. A self-rotating nozzle according to claim 1, characterized in that: A bearing is provided on the inner wall of the first matching groove, the inner wall of the second matching groove matches the inner wall of the bearing, and the bearing is located between the bottom wall of the first matching groove and the top wall of the second matching groove.

3. A self-rotating nozzle according to claim 2, characterized in that: A first mounting groove is provided on the inner wall of the water injection hole, a first sealing ring is provided in the first mounting groove, a second mounting groove is provided on the outer surface of the connector, and a second sealing ring is provided in the second mounting groove.

4. The self-rotating nozzle according to claim 1, characterized in that: The top of the connector is provided with a hexagonal groove, the outer surface of the bottom of the connector is provided with a first thread, and the top of the rotating body is provided with a threaded fixing hole, and the threaded fixing hole is threadedly matched with the connector.

5. The self-rotating nozzle according to claim 4, characterized in that: A fixing groove is provided at the bottom of the connector, the first thread is provided on the outer surface of the fixing groove, the threaded fixing hole cooperates with the first thread on the outer side of the fixing groove, and the top wall of the rotating body is supported by the top wall of the fixing groove.

6. The self-rotating nozzle according to claim 4, characterized in that: The opening direction of the water spray hole is opposite to the screwing direction of the thread of the rotating body and the connecting body.

7. The self-rotating nozzle according to claim 4, characterized in that: A stepped groove is provided on the outer side of the fixing body, and a second thread is provided on the outer surface of the stepped groove for fixing the fixing body to an external device.

8. The self-rotating nozzle according to claim 5, characterized in that: The fixing groove is located on the outside of the fixing body, and a gap is provided between the rotating body and the fixing body.

9. The self-rotating nozzle according to claim 1, characterized in that: A water spray hole is provided at the bottom of the rotating body, and the water spray hole is in a fan shape that gradually increases from the inside of the rotating body to the outside of the rotating body.

10. A denture carving and milling machine, comprising a self-rotating nozzle according to any one of claims 1 to 9, characterized in that: Also includes: A housing; a switch door is provided on one side of the housing; A plurality of threaded holes are provided on the top of the housing; the threaded holes cooperate with the second thread of the fixing body, and the fixing body is connected to the external water inlet pipe; The drain outlet is arranged at the bottom of the shell.

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