Multi-stage adjustable medical spray head

Abstract

This utility model discloses a multi-level adjustable medical nozzle, including an upper cover, a flow guiding device, and a lower cover. A circular hole is formed in the center of the lower cover, and the flow guiding device is installed in the hole. The upper cover is snapped onto the flow guiding device and slidably connected to it. The flow guiding device includes a flow guiding column and a flow guiding pipe. A flow guiding hole is provided above the flow guiding pipe. The flow guiding column is installed inside the flow guiding hole. A flow guiding structure is provided on the flow guiding column, and correspondingly, an adjustment block is provided at a corresponding position on the upper cover. By rotating the upper cover, the corresponding flow guiding channel and flow guiding area in the flow guiding structure are selected to adjust the form and level of the sprayed liquid. By rotating the upper cover to select the corresponding flow guiding channel and flow guiding area in the flow guiding structure to adjust the form and level of the sprayed liquid, the user can select the required liquid type and spray intensity as needed, improving the user experience and solving the technical problem that existing adjustable medical nozzles have limited functionality and cannot spray liquids in different states.

Description

Technical Field

[0001] This utility model relates to the field of medical nozzle technology, and in particular to a multi-level adjustable medical nozzle. Background Technology

[0002] Currently, most medical spray nozzles can only achieve one or two fixed water output modes and cannot adjust the speed.

[0003] Utility model patent application number 2017207517041 describes a medical adjustable nozzle, which adds an adjusting ring. By rotating the adjusting ring clockwise or counterclockwise, the distance between the nozzle and a small hole on the adjusting ring is changed, thereby altering the pressure on the liquid and the impact force of the air, thus adjusting the spray pattern to either a mist or a straight water flow. While different spray patterns can be achieved by adjusting the adjusting ring, the adjusting ring is prone to falling off over time, making it impossible to achieve different spray patterns. Furthermore, leakage may occur when the spiral is not tightened.

[0004] International patent application number 20188000382591 describes a nozzle for applying liquid medication from a pressure storage device to the nose. The nozzle does not have a multi-speed adjustment structure and can only achieve two states: spray jet or spray, and cannot achieve multiple spray effects. Summary of the Invention

[0005] Existing medical adjustable nozzles have technical problems such as limited functionality and inability to spray liquids in different states.

[0006] To address the aforementioned issues, a multi-level adjustable medical nozzle is proposed. This nozzle incorporates a flow guiding device with a flow guiding structure on the flow guiding column. An adjustment block is positioned at a corresponding location on the top cover. By rotating the top cover, the corresponding flow channel and flow area within the flow guiding structure are selected to adjust the sprayed liquid type and intensity. Users can choose the desired liquid type and spray intensity, improving the user experience and resolving the technical problems of existing adjustable medical nozzles, which suffer from limited functionality and inability to spray liquids in different states.

[0007] A multi-level adjustable medical spray nozzle includes:

[0008] Top cover;

[0009] Flow guiding device;

[0010] Bottom cover;

[0011] The lower cover has a circular hole at its center, and the flow guiding device is assembled in the circular hole;

[0012] The upper cover is snapped onto the flow guiding device and is slidably connected to the flow guiding device;

[0013] The flow guiding device includes a flow guiding column and a flow guiding pipe;

[0014] A flow guide hole is provided above the flow guide pipe;

[0015] The flow guide column is assembled inside the flow guide hole;

[0016] The guide column is provided with a guide structure, and correspondingly, the upper cover is provided with an adjustment block at the corresponding position.

[0017] The type and intensity of the sprayed liquid can be adjusted by rotating the top cover to select the corresponding guide channel and guide area in the guide structure.

[0018] In a first possible embodiment of the multi-level adjustable medical nozzle described in this utility model, the adjusting block has a symmetrical structure and includes:

[0019] First groove, second groove, third groove, and protrusion;

[0020] The depths of the first groove, the second groove, and the third groove increase sequentially.

[0021] In conjunction with the first possible embodiment of this utility model, in the second possible embodiment, the guide column further includes a central circular groove, which is formed in the central region on the upper side of the guide column;

[0022] The flow guiding structure includes a direct current channel and a vortex channel;

[0023] The direct current channel and the vortex channel are symmetrical about the central circular groove.

[0024] In conjunction with the second possible implementation of this utility model, in the third possible implementation, the straight edge of the vortex channel is tangent to the circular edge of the central circular groove, and the angle between the inclined side and the straight edge of the vortex channel is an acute angle.

[0025] In conjunction with the third possible embodiment of this utility model, in the fourth possible embodiment, the flow guiding structure further includes:

[0026] Side flow channel and regulating groove;

[0027] The side channels are symmetrically formed on the outside of the guide columns;

[0028] The regulating groove is an annular structure formed on the upper side of the guide column, and is used to adapt to the regulating block to adjust the flow channel area and close the flow channel;

[0029] The flow guiding spaces of the side flow channel, direct flow channel, vortex channel, regulating groove and central circular groove are interconnected.

[0030] In conjunction with the multi-level adjustable medical nozzle described in this utility model, in a fifth possible embodiment, the flow guiding device further includes:

[0031] Sealing ring;

[0032] The sealing ring is assembled between the guide column and the guide pipe to provide a seal.

[0033] In conjunction with the multi-level adjustable medical nozzle described in this utility model, in a sixth possible embodiment, the guide column further includes:

[0034] First positioning block;

[0035] Correspondingly, a first positioning groove is provided on the inner side of the flow guide hole of the flow guide pipe;

[0036] The first positioning block is adapted to the first positioning groove and is used to position the guide column.

[0037] In conjunction with the fifth possible embodiment of this utility model, and in the seventh possible embodiment, the flow guiding pipe further includes:

[0038] Liquid inlet;

[0039] Sealing groove;

[0040] The liquid inlet communicates with the guide hole;

[0041] The sealing groove is an annular structure and is located on the outside of the flow guide hole to accommodate the sealing ring.

[0042] In conjunction with the seventh possible embodiment of this utility model, and in the eighth possible embodiment, the flow guiding pipe further includes:

[0043] Second positioning block;

[0044] The second positioning block is formed on the outer side of the housing of the flow guide pipe. Correspondingly, a second positioning groove is provided on the inner side of the circular hole of the lower cover. The second positioning block is adapted to the second positioning groove for positioning the flow guide pipe.

[0045] In a ninth possible embodiment of the multi-level adjustable medical nozzle described in this utility model, a second scale block is provided on the outer side of the upper surface of the lower cover to indicate the type of liquid to be selected, and a first scale block is provided on the upper surface of the upper cover to indicate the level of the selected liquid type.

[0046] The multi-level adjustable medical nozzle of this invention features a flow guiding device with a flow guiding structure on the flow guiding column. An adjustment block is located at a corresponding position on the upper cover. By rotating the upper cover, the corresponding flow channel and flow area in the flow guiding structure can be selected to adjust the form and level of the sprayed liquid. Users can select the desired liquid type and spray intensity as needed, improving the user experience and solving the technical problem of existing adjustable medical nozzles having limited functionality and being unable to spray liquids in different states. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 This is an exploded view of the structure of the multi-level adjustable medical nozzle of this utility model;

[0049] Figure 2 This is a first view of the upper cover of the multi-level adjustable medical nozzle of this utility model;

[0050] Figure 3 This is a second view of the upper cover of the multi-level adjustable medical nozzle of this utility model;

[0051] Figure 4 This is a third view of the upper cover of the multi-level adjustable medical nozzle of this utility model;

[0052] Figure 5 This is a structural diagram of the adjusting block in the multi-level adjustable medical nozzle of this utility model;

[0053] Figure 6 This is an exploded view of the flow guiding device in the multi-level adjustable medical nozzle of this utility model;

[0054] Figure 7 This is a first view of the guide column in the multi-level adjustable medical nozzle of this utility model;

[0055] Figure 8 This is a second view of the guide column in the multi-level adjustable medical nozzle of this utility model;

[0056] Figure 9 This is a first view of the flow guide pipe in the multi-level adjustable medical nozzle of this utility model;

[0057] Figure 10 This is a second view of the flow guide pipe in the multi-level adjustable medical nozzle of this utility model;

[0058] Figure 11 This is a structural view of the lower cover of the multi-level adjustable medical nozzle of this utility model;

[0059] Figure 12 (a)-12(d) are schematic diagrams of the liquid flow direction of the multi-level adjustable medical nozzle of this utility model;

[0060] Figure 13 (a)-13 (c) are respectively schematic diagrams of the adjustment block of the three-level spraying of the multi-level adjustable medical nozzle of this utility model;

[0061] Figure 14 (a)-14 (c) are respectively schematic diagrams of the adjustment block when the multi-level adjustable medical nozzle of this utility model sprays water in three levels;

[0062] The parts represented by the numbers in the attached diagram are as follows: 1 - Top cover, 11 - Liquid outlet, 12 - First scale block, 13 - Adjusting block, 131 - First groove, 132 - Second groove, 133 - Third groove, 134 - Protrusion, 2 - Flow guide device, 21 - Sealing ring, 22 - Flow guide column, 221 - Side flow channel, 222 - Straight flow channel, 223 - Swirl flow channel, 224 - Central circular groove, 225 - Adjusting groove, 226 - First positioning block, 23 - Flow guide pipe, 231 - First positioning groove, 232 - Sealing groove, 233 - Second positioning block, 234 - Liquid inlet, 3 - Bottom cover, 31 - Second scale block, 32 - Second positioning groove. Detailed Implementation

[0063] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of this utility model.

[0064] Existing medical adjustable nozzles have technical problems such as limited functionality and inability to spray liquids in different states.

[0065] To address the above issues, a multi-level adjustable medical spray head is proposed.

[0066] A multi-level adjustable medical spray nozzle, such as Figure 1 , Figure 1This is an exploded view of the structure of the multi-level adjustable medical nozzle of this utility model; it includes an upper cover 1, a flow guiding device 2, and a lower cover 3; the lower cover 3 has a circular hole in its center, and the flow guiding device 2 is assembled in the circular hole; the upper cover 1 is snapped onto the flow guiding device 2 and is slidably connected to the flow guiding device 2; the flow guiding device 2 includes a flow guiding column 22 and a flow guiding pipe 23; a flow guiding hole is provided above the flow guiding pipe 23; the flow guiding column 22 is assembled in the flow guiding hole; a flow guiding structure is provided on the flow guiding column 22, and correspondingly, an adjustment block 13 is provided at the corresponding position on the upper cover 1; by rotating the upper cover 1, the form and level of the sprayed liquid can be adjusted by selecting the corresponding flow guiding channel and flow guiding area in the flow guiding structure. By setting a flow guiding device 2 and a flow guiding structure on the flow guiding column 22 of the flow guiding device 2, and setting an adjustment block 13 at the corresponding position of the upper cover 1, the form and level of the sprayed liquid can be adjusted by rotating the upper cover 1 to select the corresponding flow guiding channel and flow guiding area in the flow guiding structure. Users can select the required liquid type and spray intensity as needed, which improves the user experience and solves the technical problem that existing medical adjustable nozzles have a single function and cannot spray liquids in different states.

[0067] In this embodiment, the flow guiding device 2 is fixed in the round hole of the lower cover 3, and the upper cover 1 is assembled on the housing of the flow guiding device 2 and rotatably connected to the flow guiding device 2. Specifically, a negative angle protrusion can be formed on the housing of the flow guiding device 2, and a positive angle annular groove can be formed on the inner side of the upper cover 1 to realize the rotatable connection between the two.

[0068] In one possible implementation, such as Figure 2 and 3 , Figure 2 This is a first view of the upper cover 1 of the multi-level adjustable medical nozzle of this utility model. Figure 3 This is a second view of the upper cover 1 of the multi-level adjustable medical nozzle of this utility model; the adjusting block 13 has a symmetrical structure, as shown in the figure. Figure 5 , Figure 5 This is a structural diagram of the adjusting block 13 in the multi-level adjustable medical nozzle of this utility model, including a first groove 131, a second groove 132, a third groove 133 and a protrusion 134; the depth of the first groove 131, the depth of the second groove 132 and the depth of the third groove 133 increase sequentially.

[0069] In this embodiment, as Figure 5 The adjusting block 13 has three pairs of grooves of different depths and symmetrically distributed along the center: a first groove 131, a second groove 132, a third groove 133, and a protrusion 134. The first groove 131, the second groove 132, and the third groove 133 are used to change the cross-sectional area of ​​the flow channel, corresponding to the first, second, and third speed water output effects, respectively. The protrusion 134 is used to close the flow channel.

[0070] In one possible implementation, such as Figure 6-8 , Figure 6 This is an exploded view of the flow guiding device 2 in the multi-level adjustable medical nozzle of this utility model. Figure 7 This is a first view of the guide column 22 in the multi-level adjustable medical nozzle of this utility model. Figure 8 This is a second view of the guide column 22 in the multi-level adjustable medical nozzle of this utility model; the guide column 22 also includes a central circular groove 224, which is formed in the central region on the upper side of the guide column 22; the guide structure includes a direct current channel 222 and a vortex channel 223; the angle between the direct current channel 222 and the vortex channel 223 can be 90 degrees, and they are symmetrical about the central circular groove 224. Preferably, the straight edge of the vortex channel 223 is tangent to the circular edge of the central circular groove 224, and the angle between the inclined side and the straight edge is an acute angle, which can be 18 degrees.

[0071] In one possible implementation, the flow guiding structure further includes a side flow channel 221 and an adjustment groove 225; the side flow channel 221 is symmetrically formed on the outside of the flow guiding column 22; the adjustment groove 225 is an annular structure used to adapt to the adjustment block 13 to adjust the flow channel area and close the flow channel, and is formed on the upper side of the flow guiding column 22; the flow guiding spaces of the side flow channel 221, the direct flow channel 222, the swirling flow channel 223, the adjustment groove 225 and the central circular groove 224 are connected.

[0072] In one possible implementation, the flow guiding device 2 further includes a sealing ring 21; the sealing ring 21 is assembled between the flow guiding column 22 and the flow guiding pipe 23 to provide a seal.

[0073] In one possible implementation, the guide column 22 further includes a first positioning block 226; correspondingly, a first positioning groove 231 is provided on the inner side of the guide hole of the guide pipe 23; the first positioning block 226 is adapted to the first positioning groove 231 for positioning the guide column 22.

[0074] In this embodiment, fluid flows from the bottom of the guide column 22 and the side channel 221 to the top of the guide column 22. Liquid flowing through the direct current channel 222 or the vortex channel 223 converges at the central circle, producing two spray states: water column and water mist, respectively. The adjustment groove 225 matches the adjustment block 13 of the upper cover 1, and the positioning block is used to fix the relative position of the guide column 22 and the guide channel 23.

[0075] In one possible implementation, such as Figure 9-10 , Figure 9 This is a first view of the flow guide pipe 23 in the multi-level adjustable medical nozzle of this utility model. Figure 10 This is a second view of the flow guide pipe 23 in the multi-level adjustable medical nozzle of this utility model; the flow guide pipe 23 also includes a liquid inlet 234 and a sealing groove 232; the liquid inlet 234 communicates with the flow guide hole; the sealing groove 232 is an annular structure and is set on the outside of the flow guide hole to accommodate the sealing ring 21.

[0076] In one possible implementation, the flow guide pipe 23 further includes a second positioning block 233; the second positioning block 233 is formed on the outer side of the housing of the flow guide pipe 23, and correspondingly, a second positioning groove 32 is provided on the inner side of the circular hole of the lower cover 3. The second positioning block 233 is adapted to the second positioning groove 32 for positioning the flow guide pipe 23.

[0077] In this embodiment, the second positioning groove 32 matches the second positioning block 233, the sealing groove 232 is used to place the sealing ring 21, and the second positioning block 233 is used to fix the relative position of the guide pipe 23 and the lower cover 3.

[0078] In one possible implementation, such as Figure 4 and Figure 11 , Figure 4 This is a third view of the upper cover 1 of the multi-level adjustable medical nozzle of this utility model. Figure 11 This is a structural view of the lower cover 3 of the multi-level adjustable medical nozzle of this utility model; a second scale block 31 is provided on the outer side of the upper surface of the lower cover 3 to indicate the liquid type to be selected, and a first scale block 12 is provided on the upper surface of the upper cover 1 to indicate the liquid type selection level.

[0079] In this embodiment, the second scale blocks 31 of the two blocks represent the positions of two spraying states, with an included angle of 90 degrees. When the first scale block 12 of the upper cover 1 is rotated to correspond to any of the second scale blocks 31, it is a spraying state. The first scale block 12 consists of three pairs of scale blocks (121, 122, 123) symmetrically distributed along the center.

[0080] In the embodiments of this application, such as Figure 12 (a)-12(d), Figure 12 (a)-12(d) are schematic diagrams of the liquid flow direction of the multi-level adjustable medical nozzle of this utility model; the liquid flow path is as follows: the liquid first reaches the bottom of the guide column 22 through the guide pipe 23, then splits along the side flow channel 221 to the top of the guide column 22, then reaches the central circle confluence through the direct flow channel 222 or the vortex channel 223, and finally sprays out through the liquid outlet 11 of the upper cover 1.

[0081] In the embodiments of this application, such as Figure 13 (a)-13(c), Figure 13(a)-13 (c) are respectively schematic diagrams of the adjustment block 13 when the multi-level adjustable medical nozzle of this utility model sprays three levels of spray; when the top cover 1 is rotated so that the first scale block 12 is aligned with the second scale block 31, the first groove 131 of the adjustment block 13 opens the vortex channel 223 and the protrusion 134 completely closes the direct current channel 222. At this time, the state is the first level water mist state. If the top cover 1 is rotated counterclockwise and aligned with the second scale block 31, the vortex channel 223 will be opened in sequence through the second groove 132 and the third groove 133, resulting in the second level water mist state and the third level water mist state. The direct current channel 222 is always completely closed.

[0082] In the embodiments of this application, such as Figure 14 (a)-14(c), Figure 14 (a)-14(c) are schematic diagrams of the adjustment block 13 when the multi-level adjustable medical nozzle of this utility model sprays three water jets; when the upper cover 1 is rotated so that the first scale block 12 is aligned with the second scale block 31, the first groove 131 of the adjustment block 13 opens the direct flow channel 222, and the protrusion 134 completely closes the vortex channel 223. At this time, the state is the first water jet state. If the upper cover 1 is rotated counterclockwise and aligned with the second scale block 31, the direct flow channel 222 will be opened sequentially through the second groove 132 and the third groove 133, resulting in the second water jet state (e.g., Figure 11 (and three water column states, with vortex channel 223 always completely closed.)

[0083] The multi-level adjustable medical nozzle of this invention features a flow guiding device 2 with a flow guiding structure on the flow guiding column 22. An adjustment block 13 is provided at a corresponding position on the upper cover 1. By rotating the upper cover 1, the corresponding flow guiding channel and flow guiding area in the flow guiding structure can be selected to adjust the form and level of the sprayed liquid. Users can select the required liquid type and spray intensity as needed, improving the user experience and solving the technical problem that existing adjustable medical nozzles have limited functionality and cannot spray liquids in different states.

[0084] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-level adjustable medical spray nozzle, characterized in that, include: Top cover; Flow guiding device; Bottom cover; The lower cover has a circular hole in the center, and the flow guiding device is assembled in the circular hole; The upper cover is snapped onto the flow guiding device and is slidably connected to the flow guiding device; The flow guiding device includes a flow guiding column and a flow guiding pipe; A flow guide hole is provided above the flow guide pipe; The flow guide column is assembled inside the flow guide hole; The guide column is provided with a guide structure, and correspondingly, the upper cover is provided with an adjustment block at the corresponding position. The type and intensity of the sprayed liquid can be adjusted by rotating the top cover to select the corresponding guide channel and guide area in the guide structure.

2. The multi-level adjustable medical nozzle according to claim 1, characterized in that, The adjustment block has a symmetrical structure and includes: First groove, second groove, third groove, and protrusion; The depths of the first groove, the second groove, and the third groove increase sequentially.

3. The multi-level adjustable medical nozzle according to claim 2, characterized in that, The guide column also includes a central circular groove, which is formed in the central region on the upper side of the guide column; The flow guiding structure includes a direct current channel and a vortex channel; The direct current channel and the vortex channel are symmetrical about the central circular groove.

4. The multi-level adjustable medical nozzle according to claim 3, characterized in that, The straight edge of the vortex channel is tangent to the circular edge of the central groove, and the angle between the inclined side and the straight edge of the vortex channel is an acute angle.

5. The multi-level adjustable medical nozzle according to claim 4, characterized in that, The flow guiding structure also includes: Side flow channel and regulating groove; The side channels are symmetrically formed on the outside of the guide columns; The regulating groove is an annular structure formed on the upper side of the guide column, and is used to adapt to the regulating block to adjust the flow channel area and close the flow channel; The flow guiding spaces of the side flow channel, direct flow channel, vortex channel, regulating groove and central circular groove are interconnected.

6. The multi-level adjustable medical nozzle according to claim 1, characterized in that, The flow guiding device further includes: Sealing ring; The sealing ring is assembled between the guide column and the guide pipe to provide a seal.

7. The multi-level adjustable medical nozzle according to claim 1, characterized in that, The flow guide column also includes: First positioning block; Correspondingly, a first positioning groove is provided on the inner side of the flow guide hole of the flow guide pipe; The first positioning block is adapted to the first positioning groove and is used to position the guide column.

8. The multi-level adjustable medical nozzle according to claim 6, characterized in that, The flow diversion conduit also includes: Liquid inlet; Sealing groove; The liquid inlet communicates with the guide hole; The sealing groove is an annular structure and is located on the outside of the flow guide hole to accommodate the sealing ring.

9. The multi-level adjustable medical nozzle according to claim 8, characterized in that, The flow diversion conduit also includes: Second positioning block; The second positioning block is formed on the outer side of the housing of the flow guide pipe. Correspondingly, a second positioning groove is provided on the inner side of the circular hole of the lower cover. The second positioning block is adapted to the second positioning groove for positioning the flow guide pipe.

10. The multi-level adjustable medical nozzle according to any one of claims 1-9, characterized in that, The lower cover has a second scale block on the outer side of its upper surface to indicate the type of liquid to be selected, and the upper cover has a first scale block on its upper surface to indicate the level of liquid selection.

Images