A supercharging nozzle structure and a range hood

Abstract

This utility model discloses a pressurized nozzle structure and a range hood. The pressurized nozzle structure includes a nozzle body, an impeller assembly, and a water outlet diaphragm. A hollow water flow channel is defined within the nozzle body. An inlet and an outlet, respectively connected to the water flow channel, are respectively opened at both ends of the nozzle body. The impeller assembly is rotatably disposed within the water flow channel, and a spiral baffle causes the water flowing into the nozzle body through the inlet to spiral towards the outlet. The water outlet diaphragm is detachably disposed at the outlet position, and a spray nozzle connected to the outlet is opened on the water outlet diaphragm. Its structure is simple; by adding a rotatable impeller assembly within the nozzle body to pressurize the water flow, the spray pressure of the water flow can be effectively increased.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a pressure boosting nozzle structure and a range hood. Background Technology

[0002] The cleaning of range hoods is based on water. Water in a cup is drawn into the pump under vacuum, then pressurized by the pump before entering the nozzles. Finally, the water is sprayed onto the impeller of the range hood through the nozzle holes to clean it.

[0003] In the existing technology, most water pumps used for cleaning range hoods are limited by space and cost, and are generally miniature water pumps. This results in insufficient output pressure, and the water pressure does not change much after passing through the nozzle, which is not good enough for the primary cleaning effect on the impeller. Summary of the Invention

[0004] This utility model aims to solve, at least to some extent, one of the problems existing in the prior art. To this end, this utility model proposes a pressurizing nozzle structure, which is simple in structure. By adding a rotatable impeller assembly to the nozzle body to pressurize the water flow, the ejection pressure of the water flow can be effectively increased.

[0005] In addition, this utility model also proposes a range hood with a reasonable design that can effectively improve the cleaning effect of the range hood and further reduce the production cost of the product.

[0006] The first objective mentioned above is achieved through the following technical solution:

[0007] A booster nozzle structure includes a nozzle body, an impeller assembly, and a water outlet diaphragm. A hollow water flow channel is defined within the nozzle body. An inlet and an outlet, respectively connected to the water flow channel, are respectively provided at both ends of the nozzle body. The impeller assembly is rotatably disposed within the water flow channel. A spiral baffle causes the water flowing into the nozzle body through the inlet to spiral towards the outlet. The water outlet diaphragm is detachably disposed at the outlet position, and a spray nozzle connected to the outlet is provided on the water outlet diaphragm.

[0008] In some embodiments, the impeller assembly includes a first fixed wheel, a second fixed wheel, and a helical impeller. The first fixed wheel is located at the inlet, and the water flow channel has a boss at one end away from the inlet. The second fixed wheel abuts against the boss. Water inlets are respectively provided on the first fixed wheel and the second fixed wheel to connect the inlet and the outlet. The helical impeller is rotatably installed in the water flow channel by the cooperative action of the first fixed wheel and the second fixed wheel.

[0009] In some embodiments, fixing ports are respectively provided on the first fixed wheel and the second fixed wheel, and protruding rods are respectively provided at both ends of the spiral impeller, the protruding rods extending rotatably into the fixing ports.

[0010] In some embodiments, multiple ribs are provided at intervals along the circumferential direction on the inner sidewalls of the first fixed wheel and the second fixed wheel, and the other end of the multiple ribs passes through the water inlet and connects to the outer sidewall of the fixed inlet.

[0011] In some embodiments, the helical impeller includes an integrally formed central shaft and blades, wherein the blades are helically arranged on the outer peripheral wall of the central shaft.

[0012] In some embodiments, the nozzle body has a vertical section and a horizontal section, the vertical section and the horizontal section are connected to form an L-shaped structure, the water inlet is located at the upper end of the vertical section, the water outlet is located at the end of the horizontal section away from the vertical section, and the impeller assembly is disposed within the vertical section.

[0013] In some embodiments, a water inlet connector is also included, which is detachably disposed at the water inlet position and has a water inlet interface that communicates with the water inlet.

[0014] In some embodiments, a mounting cap is also included, through which the water outlet diaphragm is mounted to the nozzle body.

[0015] In some embodiments, a limiting portion is provided at the edge of the water outlet, and a positioning portion is provided at the end of the water outlet membrane away from the water nozzle. The positioning portion and the limiting portion are connected to each other to limit the displacement of the water outlet membrane.

[0016] The second objective mentioned above is achieved through the following technical solution:

[0017] A range hood includes a range hood body, a water pump connected to an external water supply is provided on the range hood body, and a pressure-boosting nozzle structure as described in any of the above embodiments. The nozzle body is disposed in the range hood body, and the water outlet of the water pump is connected to the water inlet.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] 1. The pressurizing nozzle structure of this utility model is simple in structure. By adding a rotatable impeller assembly to the nozzle body to pressurize the water flow, the ejection pressure of the water flow can be effectively increased.

[0020] 2. The range hood of this utility model is reasonably designed, which can effectively improve the cleaning effect of the range hood, and at the same time further reduce the production cost of the product. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the pressurizing nozzle structure in an embodiment of this utility model;

[0023] Figure 2 This is a cross-sectional view of the pressurizing nozzle structure in an embodiment of this utility model;

[0024] Figure 3 This is an exploded view of the pressurizing nozzle structure in an embodiment of this utility model; Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of the claimed invention.

[0027] Example:

[0028] like Figure 1-3As shown, a booster nozzle structure includes a nozzle body 1, an impeller assembly 2, and a water outlet diaphragm 6. A hollow water flow channel 3 is defined within the nozzle body 1. An inlet 31 and an outlet 32, which are connected to the water flow channel 3, are respectively provided at both ends of the nozzle body 1. The impeller assembly 2 is rotatably disposed within the water flow channel 3. A spiral baffle 2 causes the water flowing into the nozzle body 1 through the inlet 31 to spiral towards the outlet 32. The water outlet diaphragm 6 is detachably disposed at the outlet 32. A spray nozzle 61, which is connected to the outlet 32, is provided on the water outlet diaphragm 6.

[0029] The pressurizing nozzle structure in this embodiment is simple in structure. By adding a rotatable impeller assembly 2 inside the nozzle body 1 to pressurize the water flow, the ejection pressure of the water flow can be effectively increased.

[0030] In this embodiment, a hollow water flow channel 3 is defined within the nozzle body 1. An inlet 31 connected to the water flow channel 3 is provided at one end of the nozzle body 1, allowing external water supply to enter the water flow channel 3 through the inlet 31. An outlet 32 ​​connected to the water flow channel 3 is provided at the other end of the nozzle body 1, allowing the water flow entering the water flow channel 3 to be output outward through the outlet 32. Furthermore, a rotatable impeller assembly 2 is added within the water flow channel 3. After external water supply enters the nozzle body 1 through the inlet 31, the water flow continues to flow from the inlet 31 towards the outlet 32, thereby driving the impeller assembly 2 to rotate synchronously. The rotation of the impeller assembly 2 causes the water flow entering the nozzle body 1 to spiral towards the outlet 32, thereby achieving a flow concentration and pressurization effect. Then, the concentrated and pressurized water flow continues to be sprayed outward through the outlet 32, thus increasing the spray pressure of the water flow.

[0031] Furthermore, the impeller assembly 2 includes a first fixed wheel 21, a second fixed wheel 22, and a spiral impeller 23. The first fixed wheel 21 is located at the inlet 31. The water flow channel 3 has a boss 33 at the end away from the inlet 31. The second fixed wheel 22 abuts against the boss 33. Water inlets 24 are respectively opened on the first fixed wheel 21 and the second fixed wheel 22 to connect the inlet 31 and the outlet 32. The spiral impeller is rotatably installed in the water flow channel 3 through the cooperative action of the first fixed wheel 21 and the second fixed wheel 22.

[0032] Preferably, a fixing port 25 is provided on the first fixed wheel 21 and the second fixed wheel 22 respectively, and a protruding rod 26 is provided at both ends of the spiral impeller 23 respectively, and the protruding rod 26 can be rotatably extended into the fixing port 25.

[0033] Specifically, multiple ribs 27 are provided at intervals along the circumference on the inner sidewalls of the first fixed wheel 21 and the second fixed wheel 22. The other end of the multiple ribs 27 passes through the water inlet 24 and connects to the outer sidewall of the fixed port 25.

[0034] Preferably, the spiral impeller 23 includes an integrally formed central shaft 231 and blades 232, wherein the blades 232 are spirally arranged on the outer peripheral wall of the central shaft 231.

[0035] In this embodiment, a boss 33 is provided at the end of the water flow channel 3 away from the inlet 31. That is, a boss 33 is provided on the inner wall of the water flow channel 3. Since the middle position of the boss 33 is open, the water flow channel 3 is connected through the open end of the boss 33. Since the cross-sections of the first fixed wheel 21, the second fixed wheel 22, and the water flow channel 3 are all circular, the outer peripheral walls of the first fixed wheel 21 and the second fixed wheel 22 abut against the inner wall of the water flow channel 3. Furthermore, the second fixed wheel 22 continues to slide inward after passing the inlet 31 until the bottom wall of the second fixed wheel 22 abuts against the top wall of the boss 33. In addition, since the upper and lower ends of the spiral impeller 23 are respectively protruded... A protruding rod 26 is provided, and fixing holes 25 are respectively provided on the first fixing wheel 21 and the second fixing wheel 22, so that the protruding rod 26 at the lower end of the spiral impeller 23 can be rotatably extended into the fixing hole 25 on the second fixing wheel 22. Then, the first fixing wheel 21 is set at the water inlet 31, and the outer side wall of the first fixing wheel 21 abuts against the inner side wall of the water flow channel 3. At the same time, the fixing hole 25 on the first fixing wheel 21 is sleeved on the protruding rod 26 at the lower upper end of the spiral impeller 23. In this way, the spiral impeller can be rotatably installed in the water flow channel 3 through the cooperative action of the first fixing wheel 21 and the second fixing wheel 22, thereby limiting the spiral impeller 23 in both radial and axial directions.

[0036] In this embodiment, multiple ribs 27 are provided at intervals along the circumferential direction on the inner sidewalls of the first fixed wheel 21 and the second fixed wheel 22. The other end of the multiple ribs 27 passes through the water inlet 24 and connects to the outer sidewall of the fixing port 25. That is, the multiple ribs 27 are connected to the outer sidewall of the fixing port 25 at the end away from the fixed wheel, thereby effectively improving the stability of the installation of the first fixed wheel 21 and the second fixed wheel 22. Furthermore, the spiral impeller 23 includes an integrally formed central shaft 231 and blades 232. The central shaft 231 has protruding rods 26 at its upper and lower ends, and blades 232 are spirally arranged on the outer peripheral wall of the central shaft 231 along the water inlet direction, thus forming a spiral structure. More preferably, since the protruding rods 26 at the upper and lower ends of the spiral impeller 23 can rotatably extend into the corresponding fixed ports 25, after external water enters the water flow channel 3 through the inlet 31, the water flow in the water flow channel 3 first flows through the water outlet 24 on the first fixed wheel 21 to the blades 232. The impact force of the water flow drives the spiral impeller 23 to rotate synchronously. The rotational motion of the spiral impeller 23 causes the water flow to spiral towards the outlet 32, achieving a convergence and pressurization effect, thereby pressurizing the water flow. The pressurized water flow then continues to be sprayed out through the outlet 32, effectively increasing the spray pressure of the water flow, thus greatly improving the cleaning effect of the nozzle.

[0037] Preferably, the nozzle body 1 has a vertical section 11 and a horizontal section 12. The vertical section 11 and the horizontal section 12 are connected to form an L-shaped structure. The inlet 31 is located at the upper end of the vertical section 11, and the outlet 32 ​​is located at the end of the horizontal section 12 away from the vertical section 11. The impeller assembly 2 is disposed inside the vertical section 11.

[0038] In this embodiment, the vertical section 11 and the horizontal section 12 are connected to form an L-shaped structure for the nozzle body 1. Specifically, the inlet 31 is located at the upper end of the vertical section 11, the lower end of the vertical section 11 is connected to the horizontal section 12, and the horizontal section 12 has an outlet 32 ​​at the end away from the vertical section 11. The impeller assembly 2 is disposed inside the vertical section 11. The impeller assembly 2 causes the water flow entering the water flow channel 3 through the inlet 31 to spiral and achieve a flow concentration and pressurization effect. Then, the water flow after flow concentration and pressurization continues to be sprayed out through the outlet 32, thus increasing the spray pressure of the water flow. More preferably, the length of the vertical section 11 is greater than the length of the horizontal section 12, which can effectively improve the flow concentration and pressurization effect of the impeller assembly 2.

[0039] Furthermore, it also includes a water inlet connector 4, which is detachably installed at the water inlet 31, and has a water inlet interface 41 that communicates with the water inlet 31.

[0040] In this embodiment, since the first fixed wheel 21 is located at the water inlet 31, the water inlet connector 4 is detachably located at the water inlet 31. That is, an external thread is provided on the outer peripheral wall of the water inlet end of the nozzle body 1, and an internal thread is provided on the inner peripheral wall of the water inlet connector 4, so that the water inlet connector 4 and the nozzle body 1 are threaded together. At the same time, it is also convenient to disassemble and assemble the spiral impeller 23. A water inlet interface 41 connected to the water inlet 31 is provided on the water inlet connector 4, so that the external water supply flows quickly into the water flow channel 3 after passing through the water inlet interface 41 and the water inlet 31 in sequence.

[0041] Specifically, it also includes a mounting cover 7, through which the water outlet diaphragm 6 is mounted together with the nozzle body 1.

[0042] Specifically, a limiting part 34 is provided at the edge of the water outlet 32, and a positioning part is provided at the end of the water outlet 6 away from the water nozzle 61. The positioning part and the limiting part 34 are connected to each other to limit the displacement of the water outlet 6.

[0043] In this embodiment, the water outlet diaphragm 6 is first detachably installed at the water outlet 32. At the same time, a protrusion is provided at the edge of the water outlet 32 ​​to form a limiting part 34, and a groove is provided on the water outlet diaphragm 6 to form a positioning part. The positioning part and the limiting part 34 are connected together to limit the displacement of the water outlet diaphragm 6. This also helps to improve the assembly efficiency between the water outlet diaphragm 6 and the water outlet 32. In addition, a spray nozzle 61 connected to the water outlet 32 ​​is provided on the water outlet diaphragm 6, so that the pressurized water continues to pass through the water inlet 24 of the second fixed wheel 22, the water outlet 32, and the spray nozzle 61 before being sprayed outward. More preferably, a water inlet 71 is provided at one end of the mounting cover 7, and an opening is provided at the other end of the mounting cover 7. The mounting cover 7 has an internal thread on its inner peripheral wall at the end away from the water inlet 71, and the nozzle body 1 has an external thread at the end near the water outlet 32. When the water outlet diaphragm 6 is installed at the water outlet 32, the mounting cover 7 has a flange protruding at the edge of the water inlet 71 so that the water outlet end of the water outlet 6 abuts against the flange of the water inlet 71 of the mounting cover 7. In this way, the spray nozzle 51 is correspondingly set with the water inlet 71 of the mounting cover 7. Then, the water outlet diaphragm 6 installed at the water outlet 32 ​​of the nozzle body 1 passes through the opening and is correspondingly set with the water inlet 71. The mounting cover 7 is threaded together with the nozzle body 1, so that the water outlet diaphragm 6 is installed together with the nozzle body 1 through the mounting cover 7.

[0044] In this embodiment, the pressurized nozzle structure is preferably applied to a range hood. Specifically, the range hood includes a range hood body and a pressurized nozzle structure as described above. A water pump connected to an external water supply is provided on the range hood body. The nozzle body 1 is located inside the range hood body. More preferably, the water outlet 32 ​​of the nozzle body 1 is correspondingly arranged with the fan of the range hood body so that the water flow sprayed out through the water outlet 32 ​​can flush the fan. Since the water pump's outlet is connected to the inlet connector 4, the water pump's outlet can be connected to the inlet 31 via the inlet interface 41. The pump's operation then delivers external water through the inlet interface 41 and inlet 31 into the water flow channel 3. The water flowing into the channel 3 continues to flow towards the outlet 32. The impact of the water flow drives the spiral impeller 23 to rotate synchronously. The rotation of the spiral impeller 23 causes the water flow to spiral towards the outlet 32, achieving a converging and pressurizing effect, thus pressurizing the water flow. The pressurized water then continues to be sprayed outwards at high pressure through the outlet 32. This allows the sprayed water to clean the range hood and / or fan. Its reasonable design effectively improves the cleaning effect of the range hood while further reducing production costs.

[0045] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A pressure-boosting nozzle structure, characterized in that, The device includes a nozzle body (1), an impeller assembly (2), and a water outlet diaphragm (6). A hollow water flow channel (3) is defined within the nozzle body (1). An inlet (31) and an outlet (32) communicating with the water flow channel (3) are respectively provided at both ends of the nozzle body (1). The impeller assembly (2) is rotatably disposed within the water flow channel (3). The spiral baffle (2) causes the water flowing into the nozzle body (1) through the inlet (31) to spiral towards the outlet (32). The water outlet diaphragm (6) is detachably disposed at the outlet (32). A spray nozzle (61) communicating with the outlet (32) is provided on the water outlet diaphragm (6).

2. The booster nozzle structure according to claim 1, characterized in that, The impeller assembly (2) includes a first fixed wheel (21), a second fixed wheel (22), and a spiral impeller (23). The first fixed wheel (21) is located at the inlet (31). The water flow channel (3) has a boss (33) at one end away from the inlet (31). The second fixed wheel (22) abuts against the boss (33). Water inlets (24) are respectively opened on the first fixed wheel (21) and the second fixed wheel (22) to connect the inlet (31) and the outlet (32). The spiral impeller is rotatably installed in the water flow channel (3) through the cooperative action of the first fixed wheel (21) and the second fixed wheel (22).

3. The pressurizing nozzle structure according to claim 2, characterized in that, Fixing openings (25) are provided on the first fixed wheel (21) and the second fixed wheel (22), and protruding rods (26) are provided at both ends of the spiral impeller (23), and the protruding rods (26) can be rotatably extended into the fixing openings (25).

4. The booster nozzle structure according to claim 3, characterized in that, Multiple ribs (27) are provided at intervals along the circumference direction on the inner sidewalls of the first fixed wheel (21) and the second fixed wheel (22). The other end of the multiple ribs (27) passes through the water inlet (24) and connects to the outer sidewall of the fixed port (25).

5. The pressurizing nozzle structure according to claim 2, characterized in that, The spiral impeller (23) includes an integrally formed central shaft (231) and blades (232), wherein the blades (232) are spirally arranged on the outer peripheral wall of the central shaft (231).

6. The pressurizing nozzle structure according to claim 1, characterized in that, The nozzle body (1) has a vertical section (11) and a horizontal section (12). The vertical section (11) and the horizontal section (12) are connected to form an L-shaped structure. The inlet (31) is located at the upper end of the vertical section (11), and the outlet (32) is located at the end of the horizontal section (12) away from the vertical section (11). The impeller assembly (2) is disposed in the vertical section (11).

7. The pressurizing nozzle structure according to claim 1, characterized in that, It also includes a water inlet connector (4), which is detachably disposed at the water inlet (31) position, and a water inlet interface (41) connected to the water inlet (31) is provided on the water inlet connector (4).

8. The pressurizing nozzle structure according to claim 1, characterized in that, It also includes a mounting cover (7), through which the water outlet membrane (6) is mounted to the nozzle body (1).

9. A pressure-boosting nozzle structure according to claim 7, characterized in that, A limiting part (34) is provided at the edge of the water outlet (32), and a positioning part is provided at the end of the water outlet diaphragm (6) away from the water spray nozzle (61). The positioning part and the limiting part (34) are connected to each other to limit the displacement of the water outlet diaphragm (6).

10. A range hood, comprising a range hood body, wherein a water pump connected to an external water supply is disposed on the range hood body, characterized in that, It also includes a pressurizing nozzle structure as described in any one of claims 1 to 9, wherein the nozzle body (1) is disposed in the body of the smoke machine, and the water outlet of the water pump is connected to the water inlet (31).

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