A pull-through filter spray head

Abstract

The utility model discloses faucet fittings field, specifically proposes a kind of pull filter spray head, including connecting seat and spray head body, the connecting seat is equipped with water inlet, the spray head body is equipped with water outlet nozzle, the connecting seat with the spring hose for intercommunication water inlet and water outlet nozzle is equipped between spray head body;The filter core is equipped in the spray head body;The connecting seat with the connecting mechanism that spray head body is also equipped with makes both be detachable connection, the spring hose winding distance reduces when the connecting seat and spray head body are close and combine, the spring hose winding distance increases when the connecting seat and spray head body separate and mutually away;The connecting mechanism is the first magnetic attraction piece fixed on connecting seat and the second magnetic attraction piece fixed on spray head body, the first magnetic attraction piece and the second magnetic attraction piece each other adsorption realize the fixed connection of connecting seat and spray head body.The utility model has the advantages that traditional pull hose, counterweight can realize pull purpose, and water flow filtration can be realized simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of faucet accessories, specifically to a pull-out filter nozzle. Background Technology

[0002] Existing pull-out faucets improve the ease of use by incorporating a detachable nozzle from the faucet body, along with a pull-out hose and counterweight to achieve repositioning after being pulled out.

[0003] For example, Chinese Patent CN202422114752.2 discloses a pull-out faucet for a cup washer, which includes a faucet body. The faucet body has a cup washer mounting position and a valve core mounting position. The cup washer mounting position has a cup washer, and the valve core mounting position has a valve core. The outlet or inlet of the valve core is connected to the cup washer mounting position to supply water to the cup washer. The bottom of the faucet body has a pull-out cavity, and the side wall of the faucet body has a water outlet pipe. The middle section of the water outlet pipe extends upward at an angle so that the upper end of the water outlet pipe is offset from the axis of the faucet body. The 6 o'clock position where the lower end of the water outlet pipe connects with the inner wall of the pull-out cavity is transitioned by an arc surface. A pull-out tube is provided inside the water outlet tube. One end of the pull-out tube goes down through the water outlet pipe, the arc surface, and the pull-out cavity to install a counterweight, and then goes up in the opposite direction to enter the pull-out cavity and connect to the water outlet of the valve core. The other end of the pull-out tube is connected to a spray head.

[0004] For example, Chinese Patent CN202321820380.4 discloses a dual-outlet pull-out faucet, including a faucet body. The faucet body has a valve core mounting position, which has cold and hot water inlet pipes and a mixing water outlet pipe. A column is fixed to the upper end of the faucet body. A J-shaped tube is provided at the upper end of the column. A pull-out tube with a counterweight is provided inside the column, which extends from the bottom of the faucet body and is fixed thereon. A pull-out nozzle is provided at the other end of the pull-out tube. The column includes a rotating cylinder. A rotating sleeve that can rotate relative to the rotating cylinder is fitted around the rotating cylinder to form a water-passing interlayer between the two. A water outlet arm is provided on the outer wall of the rotating sleeve. The rotating sleeve has a rotating water hole connecting the water-passing interlayer and the water outlet arm. A water outlet pipe is provided on the inner wall of the rotating cylinder. After the pull-out tube is fixed with the counterweight, it extends upward in the opposite direction to connect with the mixing water outlet pipe or connects with the mixing water outlet pipe and the water outlet pipe via a T-joint.

[0005] As can be seen from existing patents, in order to ensure the smooth sliding of the pull-out hose, the design needs to focus on whether the pull-out channel of the pull-out hose is reasonable. Therefore, the pull-out hose of the pull-out faucet will occupy a large amount of the internal space of the faucet body, and also restrict the shape design of the faucet body. At the same time, it is also necessary to ensure that there is enough space under the faucet body to accommodate the counterweight and the hanging pull-out hose. The installation occasion and shape design are easily restricted.

[0006] Meanwhile, existing pull-out faucets often lack filtration functions and require a pre-filter to filter the water, which increases the cost of upstream piping installation. Alternatively, if filtration is needed later, a water purifier (filter) may need to be reconnected to the upstream piping, resulting in a significant engineering workload. Utility Model Content

[0007] Based on the above problems, the purpose of this utility model is to provide a pull-out filter nozzle that can achieve the purpose of pulling out without the need for traditional pull-out hoses and counterweights, and at the same time achieve water flow filtration.

[0008] To address the above problems, the following technical solution is provided: A pull-out filter nozzle includes a connecting seat and a nozzle body. The connecting seat has a water inlet, and the nozzle body has a water outlet. A spring hose spirally wound along the axial direction of both the connecting seat and the nozzle body is provided between them. The water inlet and the water outlet are connected by the spring hose. A filter element is provided inside the nozzle body. Water flows through the water inlet, the spring hose, and the filter element for filtration and is discharged from the water outlet. A connecting mechanism is also provided between the connecting seat and the nozzle body to allow for a detachable connection. When the connecting seat and the nozzle body are close together and engaged, the winding distance of the spring hose decreases. When the connecting seat and the nozzle body are separated and move away from each other, the winding distance of the spring hose increases. The connecting mechanism consists of a first magnetic element fixed to the connecting seat and a second magnetic element fixed to the nozzle body. The first magnetic element and the second magnetic element attract each other to achieve a fixed connection between the connecting seat and the nozzle body; or the connecting seat and the nozzle body are connected by insertion or snap-fit ​​to form a connecting mechanism.

[0009] The present invention is further configured such that one or both of the first magnetic attractor and the second magnetic attractor can be magnets. If one of them is a magnet, the other can be made of a ferromagnetic material to achieve attraction between them. When the connecting seat and the nozzle body are plugged in, they can be plugged in with a gap fit. When the connecting seat and the nozzle body are snap-fit ​​connected, snap-fit ​​and slots can be opened along their circumferential direction (conventional existing technology, not described in detail here). After the two are connected, they are fixed by relative circumferential rotation. The connecting seat and the nozzle body can also be connected by short threads (such as multi-threaded threads in the circumferential direction, which are connected and separated by relative rotation at a certain angle).

[0010] The present invention is further configured such that the nozzle body includes a lower housing and an upper housing, and a filter chamber for placing a filter element is formed between the lower housing and the upper housing; the spring hose is connected to the upper housing and supplies water into the filter chamber, and the water outlet is located on the lower housing.

[0011] The present invention is further configured such that the lower housing and the upper housing are connected by a threaded screw or a snap-fit ​​connection; the interface between the lower housing and the upper housing fixes the filter element in the filter chamber, and after the water flows into the filter chamber, it reaches the outer wall of the filter element, and after being filtered by the filter element, it reaches the center of the filter element and is discharged from the water outlet.

[0012] The present invention is further configured such that: a first fixing post is provided at the center of the side of the connecting seat facing the nozzle body, and the first magnetic attractor is located at the extension end of the first fixing post; a second fixing post (the second fixing post is fixed to the lower housing) is provided at the center of the side of the nozzle body facing the connecting seat, and the second magnetic attractor is located at the extension end of the second fixing post; when the connecting seat is combined with the nozzle body, the ends of the first fixing post and the second fixing post approach each other and are attracted to each other by the first magnetic attractor and the second magnetic attractor; the spring hose is spirally wound around the outer side of the first fixing post and / or the second fixing post in the radial direction.

[0013] The present invention is further configured such that: the center of the first fixed column is provided with a first water passage connected to the water inlet, and the outer wall of the first fixed column is provided with a first connector connected to the first water passage; the center of the second fixed column is provided with a second water passage connected to the water outlet, and the outer wall of the second fixed column is provided with a second connector connected to the second water passage; the two ends of the spring hose are respectively connected to the first connector and the second connector.

[0014] The present invention is further configured such that the first water passage is formed along the axial direction of the first fixed column and then extends radially toward the first fixed column, and the first connector converts the first water passage extending radially toward the first fixed column into a tangential direction of spiral winding of a spring hose; the second water passage is formed along the axial direction of the second fixed column and then extends radially toward the second fixed column, and the second connector converts the second water passage extending radially toward the second fixed column into a tangential direction of spiral winding of a spring hose.

[0015] The present invention is further configured such that the first fixing post and the connecting seat are detachably connected by screws, adhesive, welding, plugging, or snap-fit ​​(existing technology, not described in detail here); the second fixing post and the nozzle body are detachably connected by screws, adhesive, welding, plugging, or snap-fit ​​(existing technology, not described in detail here).

[0016] The present invention is further configured such that the first connector and the outer wall of the first fixed column are detachably connected by plugging or snapping (existing technology, not described in detail here); the second connector and the outer wall of the second fixed column are detachably connected by plugging or snapping (existing technology, not described in detail here).

[0017] The present invention is further configured such that a receiving groove is provided on the side of the connecting seat facing the nozzle body and / or the side of the nozzle body facing the connecting seat, and the spring hose is housed in the receiving groove after the winding pitch is reduced.

[0018] The present invention is further configured such that the side of the connecting seat facing the nozzle body or the side of the nozzle body facing the connecting seat is provided with a centering flange surrounding the receiving groove; when the connecting seat and the nozzle body are docked, they are concentrically positioned by the centering flange.

[0019] The present invention is further configured such that the spring hose is a plastic hose.

[0020] The connecting mechanism can also be a push-button latch installed between the connector and the nozzle body.

[0021] The beneficial effects of this utility model are: 1. The connector is provided with a connecting thread for connecting to the faucet to form a fixed connection; when in use, simply remove the nozzle body to separate it from the connector, and the water flows through the inlet, spring hose, and filter to the outlet to achieve water rinsing; because the spring hose is spirally wound, its own elasticity causes the winding pitch to converge in the direction of reduction, and when stretched, the winding pitch increases to achieve extension, in order to replace the extension requirements of traditional sliding and pulling. 2. The filter chamber can be fitted with a filter cartridge to filter the water source, eliminating the need for investment in piping, water purifier (filter) procurement and construction costs associated with installing a water purifier upstream of the faucet; the lower and upper shells are preferably connected by a threaded joint for easy disassembly, replacement or cleaning of the filter cartridge; 3. When the connecting seat is connected to the nozzle body, the first fixed post and the second fixed post are concentric with each other, which can effectively ensure the stability during adsorption; the spring hose is spirally coiled around the outer side of the first fixed post and / or the second fixed post in the radial direction, which can effectively utilize the space on the outer side of the first fixed post and / or the second fixed post in the radial direction, so that it has sufficient spiral unfolding length after stretching, thereby ensuring the compactness of the overall structure. 4. Make reasonable use of the internal space of the first and second fixed columns to open the first and second water passages; 5. Change the orientation by using the first and second connectors to match the two ends of the spring hose, thereby reducing or avoiding abnormal bending at both ends of the spring hose; 6. The receiving slot provides storage space for the spring hose, allowing it to be hidden. 7. It eliminates the special requirements for installation sites of traditional pull-out tubes and counterweights, and also avoids the need to consider the reservation of pull-out channels during the design, providing more room for operation in the design of faucet shapes; 8. It can be directly installed on traditional faucets. Attached Figure Description

[0022] Figure 1 This is a first-view three-dimensional structural diagram of the connector and nozzle body of this utility model in their combined state.

[0023] Figure 2 This is a second-view three-dimensional structural diagram of the connector and nozzle body of this utility model in their combined state.

[0024] Figure 3 This is a first cross-sectional three-dimensional structural diagram of the connector and nozzle body of this utility model in their combined state.

[0025] Figure 4 This is a second cross-sectional three-dimensional structural diagram of the combined state of the connector and the nozzle body of this utility model.

[0026] Figure 5 This is a third-section three-dimensional structural diagram of the combined state of the connector and the nozzle body of this utility model.

[0027] Figure 6 This is a three-dimensional structural diagram of the connector and nozzle body in a separated and stretched state according to this utility model.

[0028] Figure 7 This is a three-dimensional structural diagram of the connector and nozzle body in a separated, stretched, and cut state according to the present invention.

[0029] Figure 8 This is a schematic diagram of the first exploded three-dimensional structure of this utility model.

[0030] Figure 9 This is a schematic diagram of the second explosive three-dimensional structure of this utility model.

[0031] Figure 10 This is a schematic diagram of the third explosive three-dimensional structure of this utility model.

[0032] Figure 11 This is a schematic diagram of the fourth explosive three-dimensional structure of this utility model.

[0033] Figure 12 This is a three-dimensional structural diagram of the fifth explosion of this utility model.

[0034] The labels in the diagram mean the following meanings: 10-Connecting seat; 11-Water inlet; 12-Connecting thread; 13-First magnetic suction element; 20-Nose body; 201-Lower housing; 202-Upper housing; 203-Filter chamber; 21-Water outlet; 22-Second magnetic suction element; 30-Spring hose; 40-First fixing post; 41-First water passage; 42-First connector; 50-Second fixing post; 51-Second water passage; 52-Second connector; 60-Containing groove; 61-Centering flange; 70-Filter element; 80-Pressure sleeve. Detailed Implementation

[0035] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0036] refer to Figures 1 to 12 ,like Figures 1 to 12 The illustrated pull-out filter nozzle includes a connecting base 10 and a nozzle body 20. The connecting base 10 has a water inlet 11, and the nozzle body 20 has a water outlet 21. A spring hose 30, spirally wound along the axial direction of both, is provided between the connecting base 10 and the nozzle body 20. The water inlet 11 and the water outlet 21 are connected by the spring hose 30. A filter element 70 is provided inside the nozzle body 20. Water flows through the water inlet 11, the spring hose 30, and the filter element 70, and is then discharged from the water outlet 21. A further connection is provided between the connecting base 10 and the nozzle body 20 to facilitate the connection between the two. The connection mechanism is detachable. When the connecting seat 10 is close to and engaged with the nozzle body 20, the winding pitch of the spring hose 30 decreases. When the connecting seat 10 and the nozzle body 20 are separated and move away from each other, the winding pitch of the spring hose 30 increases. The connection mechanism consists of a first magnetic suction member 13 fixed on the connecting seat 10 and a second magnetic suction member 22 fixed on the nozzle body 20. The first magnetic suction member 13 and the second magnetic suction member 22 attract each other to achieve a fixed connection between the connecting seat 10 and the nozzle body 20. Alternatively, the connecting seat 10 and the nozzle body 20 can be connected by plugging or snapping to form a connection mechanism.

[0037] In the above structure, the connecting seat 10 is provided with a connecting thread 12 for connecting with the faucet to form a fixed connection; when in use, simply remove the nozzle body 20 to separate it from the connecting seat 10, and the water flows through the inlet 11, the spring hose 30, and the filter element 70 to the outlet 21 to achieve water rinsing; since the spring hose 30 is spirally wound, its own elasticity causes its winding pitch to converge in the direction of reduction, and when stretched, its winding pitch increases to achieve extension, so as to replace the extension requirements of traditional sliding and pulling.

[0038] In this embodiment, either or both of the first magnetic attractor 13 and the second magnetic attractor 22 can be magnets. If one of them is a magnet, the other can be made of a ferromagnetic material to make them attract each other. When the connecting seat 10 and the nozzle body 20 are plugged in, they can be plugged in with a gap fit. When the connecting seat 10 and the nozzle body 20 are snap-fit ​​connected, a snap-fit ​​and a slot opened along its circumferential direction can be used (conventional existing technology, which will not be described in detail here). After the two are connected, they are fixed by relative circumferential rotation. The connecting seat 10 and the nozzle body 20 can also be connected by short threads (such as multi-threaded threads opened in the circumferential direction, and the connection and separation can be achieved by relative rotation at a certain angle).

[0039] In this embodiment, the nozzle body 20 includes a lower housing 201 and an upper housing 202, and a filter chamber 203 for placing the filter element 70 is formed between the lower housing 201 and the upper housing 202; the spring hose 30 is connected to the upper housing 202 and supplies water into the filter chamber 203, and the water outlet 21 is located on the lower housing 201.

[0040] In the above structure, the filter chamber 203 can be fitted with a filter element 70 to filter the water source, which can eliminate the investment in pipeline matching, water purifier (filter) procurement costs and construction costs caused by installing a water purifier upstream of the faucet.

[0041] In this embodiment, the lower housing 201 and the upper housing 202 are connected by threaded screws or snap-fit. The interface between the lower housing 201 and the upper housing 202 fixes the filter element 70 in the filter chamber 203. After the water flows into the filter chamber 203, it reaches the outer wall of the filter element 70, is filtered by the filter element 70, reaches the center of the filter element 70, and is discharged from the outlet 21.

[0042] In the above structure, the lower housing 201 and the upper housing 202 are preferably connected by a threaded joint, which facilitates disassembly, replacement or cleaning of the filter element 70.

[0043] In this embodiment, the side of the connecting seat 10 facing the nozzle body 20 has a first fixing post 40 at its center, and the first magnetic suction member 13 is located at the extension end of the first fixing post 40; the side of the nozzle body 20 facing the connecting seat 10 has a second fixing post 50 at its center (the second fixing post 50 is fixed on the lower housing 201), and the second magnetic suction member 22 is located at the extension end of the second fixing post 50; when the connecting seat 10 is combined with the nozzle body 20, the ends of the first fixing post 40 and the second fixing post 50 are close to each other and are attracted to each other by the first magnetic suction member 13 and the second magnetic suction member 22; the spring hose 30 is spirally wound around the outer side of the first fixing post 40 and / or the second fixing post 50 in the radial direction.

[0044] In the above structure, when the connecting seat 10 is connected to the nozzle body 20, the first fixed post 40 and the second fixed post 50 are concentric with each other, which can effectively ensure the stability during adsorption; the spring hose 30 is spirally coiled on the outer side of the first fixed post 40 or / and the second fixed post 50 in the radial direction, which can effectively utilize the space on the outer side of the first fixed post 40 or / and the second fixed post 50 in the radial direction, so that it has sufficient spiral unfolding length after stretching, thereby ensuring the compactness of the overall structure.

[0045] In this embodiment, the first fixing post 40 has a first water passage 41 at its center connected to the water inlet 11, and a first connector 42 on the outer side wall of the first fixing post 40 connected to the first water passage 41; the second fixing post 50 has a second water passage 51 at its center connected to the water outlet 21, and a second connector 52 on the outer side wall of the second fixing post 50 connected to the second water passage 51; the two ends of the spring hose 30 are respectively connected to the first connector 42 and the second connector 52.

[0046] In the above structure, the internal space of the first fixed column 40 and the second fixed column 50 is used to open the first water passage 41 and the second water passage 51.

[0047] In this embodiment, the first water passage 41 is formed along the axial direction of the first fixed post 40 and then extends radially toward the first fixed post 40. The first connector 42 converts the first water passage 41 extending radially toward the first fixed post 40 into a tangential direction in which the spring hose 30 is spirally wound. The second water passage 51 is formed along the axial direction of the second fixed post 50 and then extends radially toward the second fixed post 50. The second connector 52 converts the second water passage 51 extending radially toward the second fixed post 50 into a tangential direction in which the spring hose 30 is spirally wound.

[0048] In the above structure, the orientation is changed by the first connector 42 and the second connector 52 to match the two ends of the spring hose 30, thereby reducing or avoiding abnormal bending at the two ends of the spring hose 30. (It should be noted that the orientation of the first connector 42 and the second connector 52 is fixed and is adapted to the spring hose 30 when the winding pitch is reduced. It will not undergo adaptive orientation adjustment as the winding pitch of the spring hose 30 increases. The first connector 42 and the second connector 52 can also be set to adjust the orientation with the radial direction of the first fixed post 40 and the second fixed post 50 as the axis, so as to undergo adaptive orientation adjustment as the winding pitch of the spring hose 30 increases.)

[0049] In this embodiment, the first fixing post 40 and the connecting seat 10 are detachably connected by screws, adhesive, welding, plugging, or snap-fit ​​(existing technology, not described in detail here); the second fixing post 50 and the nozzle body 20 are detachably connected by screws, adhesive, welding, plugging, or snap-fit ​​(existing technology, not described in detail here).

[0050] In the above structure, screw fixing is preferred. The first fixing post 40 and the second fixing post 50 are fixedly installed by the screws and the pressure sleeve 80; the pressure sleeve 80 provides axial pressure to the first fixing post 40 and the second fixing post 50 under the fixing action of the screws to achieve the fixed installation (e.g. Figure 9 (As shown).

[0051] In this embodiment, the first connector 42 and the outer wall of the first fixing post 40 are detachably connected by plugging or snapping (existing technology, not described in detail here); the second connector 52 and the outer wall of the second fixing post 50 are detachably connected by plugging or snapping (existing technology, not described in detail here).

[0052] In the above structure, the first connector 42 and the outer wall of the first fixing post 40, and the second connector 52 and the outer wall of the second fixing post 50 are preferably connected by a rotating snap-fit ​​connection (existing technology, which will not be described in detail here).

[0053] In this embodiment, the side of the connector 10 facing the nozzle body 20 and / or the side of the nozzle body 20 facing the connector 10 are provided with a receiving groove 60, and the spring hose 30 is housed in the receiving groove 60 after the winding pitch is reduced.

[0054] In the above structure, the receiving groove 60 can provide storage space for the spring hose 30 and hide it.

[0055] In this embodiment, the connecting seat 10 is provided with a centering flange 61 surrounding the receiving groove 60 on the side facing the nozzle body 20 or the side facing the connecting seat 10 of the nozzle body 20; when the connecting seat 10 and the nozzle body 20 are docked, they are concentrically positioned by the centering flange 61.

[0056] In the above structure, the centering flange 61 is located on the side of the nozzle body 20 facing the connecting seat 10. When the two are combined, it is used for concentric positioning to ensure the stability of the first magnetic suction member 13 and the second magnetic suction member 22 when they are attracted.

[0057] In this embodiment, the spring hose 30 is a plastic hose.

[0058] In the above structure, the connecting mechanism can also be a push-button latch (existing standard part) installed between the connecting seat 10 and the nozzle body 20.

[0059] In the above structure, the push-button latch (existing standard part) is divided into a male latch and a female latch, which are respectively installed on the connecting seat 10 and the nozzle body 20. When the two are connected, the male latch and the female latch engage with each other, and when pressed a second time, the male latch and the female latch separate. Multiple latches can be arranged, such as evenly distributed along the circumferential direction, so that the connection and separation of the connecting seat 10 and the nozzle body 20 are transformed into the pressing and jumping action of the push-button latch (existing standard part).

[0060] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A pull-out filter nozzle, comprising a connecting base and a nozzle body, wherein the connecting base is provided with a water inlet and the nozzle body is provided with a water outlet, characterized in that: A spring hose spirally wound along the axial direction of both is provided between the connecting seat and the nozzle body. The water inlet and the water outlet are connected by the spring hose. A filter element is provided inside the nozzle body. Water flows through the water inlet, the spring hose, and the filter element for filtration before being discharged from the water outlet. A connecting mechanism is also provided between the connecting seat and the nozzle body to allow for a detachable connection. When the connecting seat and the nozzle body are close together, the winding distance of the spring hose decreases. When the connecting seat and the nozzle body are separated and move away from each other, the winding distance of the spring hose increases. The connecting mechanism consists of a first magnetic attractor fixed on the connecting seat and a second magnetic attractor fixed on the nozzle body. The first magnetic attractor and the second magnetic attractor attract each other to achieve a fixed connection between the connecting seat and the nozzle body. Alternatively, the connecting seat and the nozzle body can be connected by plugging or snapping to form a connecting mechanism.

2. The pull-out filter nozzle according to claim 1, characterized in that: The nozzle body includes a lower housing and an upper housing, with a filter chamber formed between the lower housing and the upper housing for placing the filter element; the spring hose is connected to the upper housing and supplies water into the filter chamber, and the water outlet is located on the lower housing.

3. A pull-out filter nozzle according to claim 2, characterized in that: The lower housing and the upper housing are connected by a threaded screw or a snap-fit ​​joint; the interface between the lower housing and the upper housing fixes the filter element in the filter chamber. After the water flows into the filter chamber, it reaches the outer wall of the filter element, is filtered by the filter element, reaches the center of the filter element, and is discharged from the outlet.

4. A pull-out filter nozzle according to claim 1, 2, or 3, characterized in that: The connector has a first fixing post at its center on the side facing the nozzle body, and the first magnetic attractor is located at the extension end of the first fixing post; the nozzle body has a second fixing post at its center on the side facing the connector, and the second magnetic attractor is located at the extension end of the second fixing post; when the connector is combined with the nozzle body, the ends of the first fixing post and the second fixing post are close to each other and are attracted to each other by the first magnetic attractor and the second magnetic attractor; the spring hose is spirally wound around the outer side of the first fixing post and / or the second fixing post in the radial direction.

5. A pull-out filter nozzle according to claim 4, characterized in that: The first fixed column has a first water passage at its center connected to the water inlet, and a first connector on its outer side wall connected to the first water passage; the second fixed column has a second water passage at its center connected to the water outlet, and a second connector on its outer side wall connected to the second water passage; the two ends of the spring hose are respectively connected to the first connector and the second connector.

6. A pull-out filter nozzle according to claim 5, characterized in that: The first water passage is formed along the axial direction of the first fixed column and extends radially toward the first fixed column. The first connector converts the first water passage extending radially toward the first fixed column into a tangential direction of spiral winding of a spring hose. The second water passage is formed along the axial direction of the second fixed column and extends radially toward the second fixed column. The second connector converts the second water passage extending radially toward the second fixed column into a tangential direction of spiral winding of a spring hose.

7. A pull-out filter nozzle according to claim 4, characterized in that: The first fixing post and the connecting seat are detachably connected by screws, adhesive, welding, plugging, or snap-fit; the second fixing post and the nozzle body are detachably connected by screws, adhesive, welding, plugging, or snap-fit.

8. A pull-out filter nozzle according to claim 5, characterized in that: The first connector is detachably connected to the outer wall of the first fixed column by plugging or snapping; the second connector is detachably connected to the outer wall of the second fixed column by plugging or snapping.

9. A pull-out filter nozzle according to claim 1, 2, or 3, characterized in that: The connector facing the nozzle body and / or the nozzle body facing the connector are provided with a receiving groove, and the spring hose is stored in the receiving groove after the winding pitch is reduced.

10. A pull-out filter nozzle according to claim 9, characterized in that: The connecting seat has a centering flange arranged around the receiving groove on the side facing the nozzle body or the side of the nozzle body facing the connecting seat; when the connecting seat and the nozzle body are docked, they are concentrically positioned by the centering flange.

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