Spray head structure capable of automatically sealing water

Abstract

The utility model relates to an automatic water sealing spray head structure, which comprises a shell, a valve seat, a valve core, an elastic piece and a surface cover assembly, the shell is provided with an accommodating cavity, and two ends of the accommodating cavity are respectively a water inlet end and a water outlet end. The valve seat is arranged in the containing cavity, a water flow channel is formed in the valve seat, and the water flow channel is communicated between the water inlet end and the water outlet end. The valve element is movably arranged in the containing cavity. The elastic piece provides elastic force to drive the valve element to close the water flow channel. The surface cover assembly comprises a surface cover and an abutting column which are connected, the surface cover is provided with a plurality of water outlet holes, and when the surface cover is connected to the water outlet end, the abutting column makes contact with the valve element and enables the valve element to overcome the elastic force of the elastic piece to open the water flow channel. The abutting column makes contact with the valve element and enables the valve element to overcome the elastic force of the elastic piece to open the water flow channel, the spray head can normally spray water flow in the using process, when the face cover is replaced, the abutting column is detached along with the face cover, the valve element loses the acting force of the abutting column, the water flow channel is closed under driving of the elastic force, and therefore automatic water sealing of the spray head is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray equipment, in particular to an automatic water-sealing spray head structure. Background Art

[0002] A nozzle is a device that disperses a fluid into fine particles and accelerates the fluid to spray out. It is widely used in many fields. Among them, nozzles are widely used in public bathrooms or home bathrooms as cleaning tools that allow users to shower, wash and massage. The nozzle includes a main body and a water outlet cover. A flow chamber is provided in the main body. The water outlet cover is installed at the water outlet end of the flow chamber. When the nozzle is working, water is sprayed out from the water outlet cover. In practice, there are specific scenarios where the water outlet cover needs to be replaced, such as when the water outlet cover is blocked or when water outlet covers of different specifications need to be used. Specifically, when the water outlet cover is removed, the residual liquid in the nozzle will flow out from the water outlet end, causing inconvenience in use. Utility Model Content

[0003] The utility model aims to provide a nozzle structure with automatic water sealing to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0005] The utility model provides an automatic water-sealing nozzle structure, which comprises: a shell body, which is provided with a accommodating cavity, wherein the two ends of the accommodating cavity are respectively a water inlet end and a water outlet end; a valve seat, which is arranged in the accommodating cavity, and a water flow channel is formed in the valve seat, and the water flow channel is connected between the water inlet end and the water outlet end; a valve core, which is movably arranged in the accommodating cavity; an elastic member, which provides elastic force to drive the valve core to close the water flow channel; a face cover assembly, which comprises a face cover and an abutment column connected to each other, the face cover is provided with a plurality of water outlet holes, and when the face cover is connected to the water outlet end, the abutment column contacts the valve core, and enables the valve core to overcome the elastic force of the elastic member to open the water flow channel.

[0006] In some embodiments of the present application, the water flow channel includes a first channel and a second channel that are connected, and the width of the second channel is smaller than the width of the first channel; the first channel is connected to the water inlet end, and the second channel is connected to the water outlet end; the elastic member provides elastic force to drive the valve core to close the second channel.

[0007] In some embodiments of the present application, the elastic member provides elastic force to drive the valve core to enter the second channel, and the peripheral side surface of the valve core contacts the inner wall of the second channel to close the second channel.

[0008] In some embodiments of the present application, the valve core also includes a head and a sealing ring; the sealing ring is sleeved on the peripheral side of the head; the elastic member provides elastic force to drive the head into the second channel, and the sealing ring is clamped between the peripheral side of the head and the inner wall of the second channel to close the second channel.

[0009] In some embodiments of the present application, a limiting portion is provided in the second channel; and the elastic member provides elastic force to drive the valve core to resist the limiting portion.

[0010] In some embodiments of the present application, there is a transition surface between the first channel and the second channel, and the transition surface is a conical slope; the expansion of the transition surface is connected to the first channel, and the contraction of the transition surface is connected to the second channel.

[0011] In some embodiments of the present application, a limiting groove is provided at one end of the valve core facing the abutment column; the abutment column is inserted into the limiting groove.

[0012] In some embodiments of the present application, the valve seat is provided with a guide hole; the valve core includes a rod portion, and the rod portion is movably disposed in the guide hole.

[0013] In some embodiments of the present application, the valve seat includes a main body and a guide seat; the water flow channel is formed in the main body; the guide hole is arranged in the guide seat; the guide seat is provided with a water through hole; the guide seat is connected to the main body, and the water through hole is connected between the water inlet end and the water flow channel.

[0014] In some embodiments of the present application, the valve core also includes a head; the head is connected to the rod, and the head is used to close or open the water flow channel; the elastic member is sleeved outside the rod, and the two ends of the elastic member are respectively connected to the guide seat and the head.

[0015] It can be seen from the above technical solutions that the embodiments of the utility model have at least the following advantages and positive effects:

[0016] In the automatic water-sealing nozzle structure of the embodiment of the utility model, in the use scenario, water flows into the accommodating chamber from the water inlet end. Since the face cover is connected to the water outlet end, the abutment column contacts the valve core and enables the valve core to overcome the elastic force of the elastic member to open the water flow channel, so that the water flow entering the accommodating chamber can pass through the water flow channel and finally spray out from the water outlet hole of the face cover, thereby ensuring that the nozzle can play its function. When the face cover needs to be replaced, the connection between the original face cover and the water outlet end is released, and the face cover is completely detached. Since the face cover is connected to the abutment column, during this process, the abutment column is removed with the face cover, that is, the abutment column gradually moves outward and eventually loses contact with the valve core. The valve core loses the force of the abutment column and closes the water flow channel under the drive of the elastic force, so that the residual water in the accommodating chamber or the water flow channel will not continue to flow out, so that the water can be automatically sealed during the process of replacing the face cover, and the residual water in the nozzle can be effectively prevented from flowing out when the face cover is removed, which can ensure the smooth progress of the disassembly and assembly process, and the experience is better. Furthermore, the water flow channel can be opened when the force of the abutment column overcomes the elastic force of the elastic member, and can be closed when the force of the abutment column is lost. Through the contact and separation between the abutment column and the valve core, the opening and closing of the water flow channel can be achieved in a stable and controllable manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The various objects, features and advantages of the present invention will become more apparent by considering the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are only exemplary illustrations of the present invention and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always represent the same or similar parts. Among them:

[0018] Figure 1 It is a schematic structural diagram of a nozzle structure for automatic water sealing according to an exemplary embodiment.

[0019] Figure 2 yes Figure 1 sectional view of .

[0020] Figure 3 yes Figure 1 Cross-sectional view after removing the surface cover.

[0021] Figure 4 yes Figure 1 Schematic diagram of the structure of the face cover.

[0022] Figure 5 yes Figure 2 Schematic diagram of the structure of the middle valve core.

[0023] Figure 6 yes Figure 5 A schematic diagram of the structure from another perspective.

[0024] Figure 7 yes Figure 2Schematic diagram of the exploded structure of the middle valve seat.

[0025] The description of the accompanying drawings is as follows: 1. Shell; 11. Water inlet end; 12. Water outlet end; 2. Valve seat; 21. Main body; 22. Guide seat; 221. Guide hole; 222. Water flow hole; 23. Water flow channel; 231. First channel; 232. Second channel; 24. Transition surface; 3. Valve core; 31. Head; 311. Limiting groove; 312. Installation groove; 32. Rod; 33. Sealing ring; 4. Elastic member; 5. Face cover assembly; 51. Face cover; 52. Abutment column. DETAILED DESCRIPTION

[0026] Although the present invention can be easily embodied as embodiments of different forms, only some of the specific embodiments are shown in the drawings and described in detail in this specification. It should be understood that this description should be regarded as an exemplary description of the principles of the present invention and is not intended to limit the present invention to that described herein.

[0027] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the utility model, rather than implying that each embodiment of the utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0028] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of various elements of the utility model are not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0029] See also Figures 1 to 7 The automatic water-sealing nozzle structure provided by one embodiment of the utility model mainly includes a shell 1, a valve seat 2, a valve core 3, an elastic member 4 and a cover assembly 5. The shell 1 is provided with a receiving chamber, and the two ends of the receiving chamber are respectively a water inlet end 11 and a water outlet end 12. The valve seat 2 is arranged in the receiving chamber, and a water flow channel 23 is formed in the valve seat 2, and the water flow channel 23 is connected between the water inlet end 11 and the water outlet end 12. The valve core 3 is movably arranged in the receiving chamber. The elastic member 4 provides elastic force to drive the valve core 3 to close the water flow channel 23. The cover assembly 5 includes a connected cover 51 and an abutment column 52. The cover 51 is provided with a plurality of water outlet holes. When the cover 51 is connected to the water outlet end 12, the abutment column 52 contacts the valve core 3, and enables the valve core 3 to overcome the elastic force of the elastic member 4 to open the water flow channel 23.

[0030] In the automatic water-sealing nozzle structure of the embodiment of the utility model, in the use scenario, water flows into the accommodating chamber from the water inlet end 11. Since the face cover 51 is connected to the water outlet end 12, the abutment column 52 contacts the valve core 3 and enables the valve core 3 to overcome the elastic force of the elastic member 4 to open the water flow channel 23, so that the water entering the accommodating chamber can pass through the water flow channel 23 and finally spray out from the water outlet hole of the face cover 51, thereby ensuring that the nozzle can perform its function. When the face cover 51 needs to be replaced, the connection between the original face cover 51 and the water outlet end 12 is released, and the face cover 51 is completely detached. Since the face cover 51 is connected to the abutment column 52, during this process, the abutment column 52 is removed along with the face cover 51, that is, the abutment column 52 gradually moves outward and eventually loses contact with the valve core 3. The valve core 3 loses the force of the abutment column 52, and closes the water flow channel under the drive of the elastic force, so that the residual water in the accommodating chamber or the water flow channel will not continue to flow out, so that the water can be automatically sealed during the replacement of the surface cover 51, and the residual water in the nozzle can be effectively prevented from flowing out when the surface cover 51 is removed, which can ensure the smooth progress of the disassembly and assembly process and provide a better experience. Furthermore, when the force of the abutment column 52 overcomes the elastic force of the elastic member 4, the water flow channel 23 can be opened, and when the force of the abutment column 52 is lost, the water flow channel 23 can be closed. Through the contact and separation between the abutment column 52 and the valve core 3, the opening and closing of the water flow channel 23 can be stably and controllably realized.

[0031] See also Figure 2 and Figure 3 The water flow channel 23 includes a first channel 231 and a second channel 232 that are connected, and the width of the second channel 232 is smaller than that of the first channel 231. The first channel 231 is connected to the water inlet end 11, and the second channel 232 is connected to the water outlet end 12. The elastic member 4 provides elastic force to drive the valve core 3 to close the second channel 232. By setting the first channel 231 and the second channel 232 of different widths, the elastic member 4 is used to drive the valve core 3 to close the narrower second channel 232, so as to achieve the control of water flow and ensure that water can be effectively sealed when water spraying is not required.

[0032] The elastic member 4 provides elastic force to drive the valve core 3 into the second channel 232, and the peripheral side surface of the valve core 3 contacts the inner wall of the second channel 232 to close the second channel 232. The peripheral side surface of the valve core 3 contacts the inner wall of the second channel 232, and the part where the valve core 3 contacts the second channel 232 blocks the water flow, and the water flow cannot continue to pass, thereby achieving direct and effective blocking in the flow direction of the water flow.

[0033] The valve core 3 also includes a head 31 and a sealing ring 33. The sealing ring 33 is sleeved on the peripheral side of the head 31. The elastic member 4 provides elastic force to drive the head 31 into the second channel 232, and the sealing ring 33 is sandwiched between the peripheral side of the head 31 and the inner wall of the second channel 232 to close the second channel 232. Since the sealing ring 33 has elastic force, the sealing ring 33 enters the second channel 232 and is squeezed and then rebounds, and can be closely attached to the inner wall of the second channel 232 and the peripheral side of the head 31, thereby enhancing the sealing performance between the valve core 3 and the second channel 232 and improving the water sealing effect.

[0034] In this embodiment, a limiting portion is provided in the second channel 232. The elastic member 4 provides elastic force to drive the valve core 3 to abut against the limiting portion. The design of the limiting portion limits the movement range of the valve core 3 in the second channel 232, ensuring that the valve core 3 can accurately and stably close the second channel 232, and ensuring that the nozzle structure can reliably achieve automatic water sealing.

[0035] There is a transition surface 24 between the first channel 231 and the second channel 232, and the transition surface 24 is a tapered inclined surface. The expanded opening of the transition surface 24 is connected to the first channel 231, and the contracted opening of the transition surface 24 is connected to the second channel 232. On the one hand, the transition surface 24 plays a role in guiding the water flow, optimizing the flow path of the water flow and reducing the resistance of the water flow. On the other hand, it can be positioned and guided during the movement of the valve core 3, ensuring that the valve core 3 can smoothly transition from the first channel 231 to the second channel 232, ensuring the smooth progress of the automatic water sealing process.

[0036] The valve seat 2 is provided with a guide hole 221. The valve core 3 includes a rod 32, which is movably disposed in the guide hole 221. When the valve core 3 moves, the rod 32 can move along the axial direction of the guide hole 221. The design of the guide hole 221 provides guidance for the valve core 3, ensures the accuracy and stability of the movement of the valve core 3, and ensures that the valve core 3 can move accurately when closing and opening the water flow channel 23.

[0037] See also Figure 4 and Figure 5 , a limiting groove 311 is provided at one end of the valve core 3 facing the abutment column 52. The abutment column 52 is inserted into the limiting groove 311. The design of the limiting groove 311 enables the abutment column 52 to be accurately inserted into and contact the valve core 3. When the face cover assembly 5 is removed, the abutment column 52 is separated from the limiting groove 311, and the limiting groove 311 provides a positioning function for the abutment column 52. In this embodiment, the abutment column 52 is supported on the inner wall of the limiting groove 311 to prevent the position of each component from being loose, thereby ensuring that the nozzle structure can stably perform its function.

[0038] See also Figures 2 to 7The valve seat 2 includes a main body 21 and a guide seat 22. A water flow channel 23 is formed in the main body 21. A guide hole 221 is provided in the guide seat 22. The guide seat 22 is provided with a water through hole 222. The guide seat 22 is connected to the main body 21, and the water through hole 222 is connected between the water inlet end 11 and the water flow channel 23. The main body 21 is used to ensure the formation of the water flow channel 23 in the valve seat 2, and the guide seat 22 is used to ensure that the valve seat 2 can provide guidance for the movement of the valve core 3. The setting of the water through hole 222 enables the water flow entering the water inlet end 11 to enter the water flow channel 23 normally, thereby ensuring the stability of the nozzle structure.

[0039] See also Figure 2 and Figure 3 The valve core 3 also includes a head 31. The head 31 is connected to the rod 32, and the head 31 is used to close or open the water flow channel 23. The elastic member 4 is sleeved outside the rod 32, and the two ends of the elastic member 4 are respectively connected to the guide seat 22 and the head 31. The elastic member 4 is sleeved outside the rod 32 to ensure that the elastic member 4 can act on the valve core 3 in the correct direction, and the two ends of the elastic member 4 are respectively connected to the guide seat 22 and the head 31 to ensure that the valve core 3 can stably act on the head 31, so that the head 31 can close or open the water flow channel 23.

[0040] See also Figure 2 , Figure 3 and Figure 5 The head 31 includes a first part and a second part. The first part is arranged around the outer periphery of the guide part. The second part is connected to the guide part and the first part. A mounting groove 312 is formed between the outer wall of the guide part and the inner wall of the first part. The elastic member 4 is installed in the mounting groove 312. The accommodating groove is used to ensure that the elastic member 4 can deform in the correct direction and act on the valve core 3, further ensuring that the nozzle structure can work stably. In this embodiment, the elastic member 4 is a spring.

[0041] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A nozzle structure with automatic water sealing, characterized in that: include: The shell is provided with a containing cavity, and the two ends of the containing cavity are respectively a water inlet end and a water outlet end; A valve seat is disposed in the accommodating cavity, a water flow channel is formed in the valve seat, and the water flow channel is connected between the water inlet end and the water outlet end; A valve core is movably disposed in the accommodating cavity; An elastic member, providing elastic force to drive the valve core to close the water flow channel; The face cover assembly comprises a face cover and an abutment column connected to each other. The face cover is provided with a plurality of water outlet holes. When the face cover is connected to the water outlet end, the abutment column contacts the valve core and enables the valve core to overcome the elastic force of the elastic member to open the water flow channel.

2. The automatic water sealing nozzle structure according to claim 1, characterized in that: The water flow channel includes a first channel and a second channel that are connected, and the width of the second channel is smaller than the width of the first channel; The first channel is connected to the water inlet, and the second channel is connected to the water outlet; The elastic member provides elastic force to drive the valve core to close the second channel.

3. The automatic water sealing nozzle structure according to claim 2 is characterized in that: The elastic member provides elastic force to drive the valve core to enter the second channel, and the peripheral side surface of the valve core contacts the inner wall of the second channel to close the second channel.

4. The automatic water sealing nozzle structure according to claim 3 is characterized in that: The valve core also includes a head and a sealing ring; The sealing ring is sleeved on the peripheral side of the head; The elastic member provides elastic force to drive the head into the second channel, and the sealing ring is sandwiched between the peripheral side surface of the head and the inner wall of the second channel to close the second channel.

5. The automatic water sealing nozzle structure according to claim 3, characterized in that: A limiting portion is provided in the second channel; The elastic member provides elastic force to drive the valve core to abut against the limiting portion.

6. The automatic water sealing nozzle structure according to claim 2, characterized in that: There is a transition surface between the first channel and the second channel, and the transition surface is a tapered inclined surface; The expanded opening of the transition surface is connected to the first channel, and the contracted opening of the transition surface is connected to the second channel.

7. The automatic water sealing nozzle structure according to claim 1, characterized in that: A limiting groove is formed at one end of the valve core facing the abutting column; The abutment column is inserted into the limiting groove.

8. The automatic water sealing nozzle structure according to claim 1, characterized in that: The valve seat is provided with a guide hole; The valve core comprises a rod portion, and the rod portion is movably arranged in the guide hole.

9. The automatic water sealing nozzle structure according to claim 8, characterized in that: The valve seat comprises a main body and a guide seat; The water flow channel is formed in the main body; The guide hole is arranged on the guide seat; The guide seat is provided with a water hole; The guide seat is connected to the main body, and the water hole is communicated between the water inlet end and the water flow channel.

10. The automatic water sealing nozzle structure according to claim 9, characterized in that: The valve core also includes a head; The head is connected to the rod, and the head is used to close or open the water flow channel; The elastic member is sleeved outside the rod portion, and two ends of the elastic member are respectively connected to the guide seat and the head portion.

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