Spray head lock catch structure of oral irrigator

Abstract

The utility model relates to the technical field of tooth washing devices, in particular to a lock catch structure of a nozzle of a tooth washing device. Comprising a main machine and a nozzle, the main machine is provided with an end base, the nozzle is provided with a connector, the end base is provided with a plurality of lock catch assemblies, the lock catch assemblies are arranged at intervals around the vertical center axis of the end base, and the lower end of the connector is provided with a fixing lock head. The fixing lock head is connected with the lock catch assemblies in a matched mode so that the connector can be locked in the end base. The connector is provided with an unlocking assembly, and the unlocking assembly can unlock the lock catch assemblies, so that the connector is pulled out of the end base in the vertical direction. According to the nozzle lock catch structure of the oral irrigator, the nozzle is matched with the main machine through the connector and the end base, the lock catch assembly is matched with the fixing lock head so that the connector can be locked on the end base, the unlocking assembly can unlock the lock catch assembly in the vertical direction, and a user can operate the nozzle and the main machine in the single direction to complete assembling and disassembling actions. The use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tooth washing device technical field, especially point to a shower nozzle lock catch structure. BACKGROUND

[0002] It is known that high pressure water flow can easily wash the surface of an object, and water flow of appropriate pressure has also been proven to effectively clean people's teeth and mouth. The oral irrigator is realized by the impact force of high-speed water column sprayed at a certain pressure. On the basis of mainly relying on the impact force of water flow itself, the cleaning effect can be further improved by combining some measures. The oral irrigator mainly includes a host and a nozzle, and the host is used for spraying the surface and gaps of teeth through the nozzle by water flow in the form of appropriate pulse or by changing the frequency of water flow pulse to achieve the best combination with pressure. Usually, the oral irrigator is attached with multiple nozzles to meet different pressure requirements. The nozzle on the current oral irrigator is mostly locked by a single-side elastic buckle, and the host shell has a nozzle release button. When the nozzle is taken out, the release button needs to be pressed down with one hand to loosen the elastic buckle, and then the nozzle is taken out with the other hand. The operation is not very convenient.

[0003] A nozzle locking device and oral irrigator disclosed by Chinese patent CN221534153U include a main body and a nozzle; and a top cover for connecting the main body and forming a containing cavity, the top cover is provided with a mounting hole, the side wall of the mounting hole is provided with an insertion slot and a sliding slot, and the outer side surface of the top cover close to the sliding slot is provided with a slave lock piece; a first elastic piece, one end of the first elastic piece is installed in the containing cavity; a rotating sleeve for fixedly connecting the nozzle, the other end of the first elastic piece abuts against the rotating sleeve, and the rotating sleeve is provided with a master lock piece for preventing the nozzle from rotating by locking the slave lock piece, the master lock piece passes through the insertion slot and enters the containing cavity, and rotates in the sliding slot to be connected with the slave lock piece, so that the rotating sleeve is locked on the top cover. Through the abutting action of the first elastic piece and the fixed locking action of the master lock piece and the slave lock piece, the rotating sleeve connected with the nozzle is locked and fixed on the top cover, so that the nozzle can be effectively prevented from rotating due to the back thrust generated by the water column during use while avoiding the longitudinal separation of the nozzle from the containing cavity, and the direction of the nozzle is fixed during use.

[0004] When the nozzle is installed and removed, the above-mentioned prior art needs to be operated by two hands to rotate the rotating sleeve, so that the master lock piece and the slave lock piece overcome the resistance of the first elastic piece to unlock. The operation is not convenient, and multiple replacements will also cause the nozzle to loosen.

[0005] Therefore, the prior art still needs to be improved and developed. UTILITY MODEL CONTENTS

[0006] The utility model discloses a structure is reasonable, convenient to use, convenient operation's oral irrigator nozzle lock catch structure.

[0007] In order to reach above -mentioned purpose, the utility model adopts technical scheme as follows:

[0008] A kind of oral irrigator nozzle lock catch structure described in the utility model, including host computer and nozzle, end seat is equipped on the host computer, connector is equipped on the nozzle, several groups of lock catch assemblies are equipped on the end seat, several groups of lock catch assemblies are mutually spaced and are arranged around the vertical central axis of end seat, the lower end of the connector is equipped with fixed lock head, when connector is inserted into end seat along vertical direction, fixed lock head is connected with several groups of lock catch assemblies to make connector be locked in end seat;Unlocking assembly is equipped on the connector, unlocking assembly can unlock several lock catch assemblies, to make connector be pulled out the end seat along vertical direction.The nozzle and host computer constitute plug-in cooperation along vertical direction, and the two constitute adaptation by connector and end seat.The lock catch assembly is arranged around on the end seat, and lock catch assembly is connected with the connector from horizontal direction to lock it on end seat.Further, the unlocking assembly can unlock the lock catch assembly along vertical direction, so that user can operate nozzle through single (up / down) direction, make it complete assembly and disassembly action with host computer, facilitate user to use.

[0009] According to the above scheme, several grooves are equipped on the end seat, and several grooves are mutually spaced and are arranged around vertical direction, and a group of lock catch assemblies are equipped on the groove;The lock catch assembly includes lock pin and lock catch spring, and lock pin and lock catch spring are arranged in the groove, and one end of lock catch spring props the lock pin, so that the head of lock pin can extend out of groove or retract into groove along horizontal direction.The groove is opened on end seat along horizontal direction, so that lock pin can slide along groove along horizontal direction, it can be understood that, the lock catch spring device is in the groove, and one end of lock catch spring props the lock pin, so that the head of lock pin always tends to extend out of groove.When the connector is inserted into end seat, fixed lock head extrudes the lock pin, so that lock pin can overcome the elastic force of lock catch spring and retract into groove, and then fixed lock head and interface can pass through several lock catch assemblies.Further, when fixed lock head passes, the lock catch spring drives lock pin to extend out of groove again and buckle on fixed lock head, so that the connector is locked on end seat.

[0010] According to the above scheme, the lower end of the fixed lock head is provided with a first taper surface, and when the connector is inserted into the end seat in the vertical direction, the fixed lock head can push the lock pin into the sliding groove through the first taper surface. The nozzle and the connector are inserted and pulled in the vertical direction, and the fixed lock head first enters between the plurality of lock buckle assemblies. When the first taper surface presses the plurality of lock pins, the first taper surface can decompose the vertical downward pressure into a horizontal force, so that the plurality of lock pins are retracted into the sliding groove to allow the fixed lock head to pass. It can be understood that the upper end of the fixed lock head is a flat surface, and after the head of the lock pin is popped out of the sliding groove, it can be buckled on the upper end surface of the fixed lock head, thereby forming a vertical lock with the connector.

[0011] According to the above scheme, the unlocking assembly includes a movable lock head, and the head of the lock pin is provided with a wedge surface. When the movable lock head is inserted into the end seat in the vertical direction, the movable lock head can push the lock pin into the sliding groove through the wedge surface. The movable lock head can also be inserted into the end seat to trigger the plurality of lock buckle assemblies. Specifically, when the movable lock head is inserted into the end seat in the vertical direction, the movable lock head presses the wedge surface downward to make the lock pin retract into the sliding groove.

[0012] According to the above scheme, the upper end of the movable lock head is provided with a second taper surface, and when the movable lock head is pulled out of the end seat in the vertical direction, the movable lock head can push the lock pin into the sliding groove through the second taper surface. It can be understood that the movable lock head can be assembled on the end seat or the connector, and the movable lock head can move up and down relative to the plurality of lock buckle assemblies. When the movable lock head passes through the plurality of lock buckle assemblies and moves upward in the vertical direction, the second taper surface on the movable lock head can press the lock pin to retract into the sliding groove. At this time, the fixed lock head can pass through the plurality of lock buckle assemblies to allow the connector and the nozzle to be detached from the main machine.

[0013] According to the above scheme, the upper end of the connector is provided with a limiting step, the movable lock head is arranged between the fixed lock head and the limiting step, and a gear spring is arranged between the movable lock head and the fixed lock head. Specifically, the fixed lock head and the movable lock head are arranged on the connector, and the movable lock head can slide up and down on the connector. When the connector is inserted into the end seat in the vertical downward direction, the fixed lock head first compresses the plurality of lock pins to retract them into the sliding groove. When the fixed lock head passes, the lock pins are reset and buckled on the fixed lock head, so that the connector is locked in the end seat. Further, the nozzle is pressed downward, so that the connector is further inserted into the end seat, driving the movable lock head to pass through the plurality of lock pins, and then the entire nozzle is pulled to move the connector vertically upward (pulled out). First, the force can compress the gear spring to make the fixed lock head and the movable lock head form a spindle structure, the second taper surface abuts against the lock pin to make it retract into the sliding groove, and at this time the fixed lock head and the movable lock head pass through the plurality of lock buckle assemblies together, thereby realizing the disassembly of the nozzle. The above operations can be realized by one hand, thereby effectively and conveniently using the user.

[0014] According to the above scheme, the host is provided with a pump assembly, a battery and a PCBA control panel, the PCBA control panel is connected with the pump assembly and the battery through a circuit, and the pump assembly is connected with the end seat in pairs.

[0015] The utility model discloses a lock catch structure of oral irrigator nozzle, the nozzle and host constitute the plug -in cooperation along vertical, and both constitute the adaptation through the joint and end seat, the lock catch assembly surrounds setting on the end seat, and the lock catch assembly cooperates with fixed lock head to lock the joint on the end seat, the unlocking assembly can unlock the lock catch assembly along the vertical, so that user can operate the nozzle through single direction, makes it with host complete assembly and disassembly action, and the user uses conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the host structure schematic diagram of the utility model;

[0017] Figure 2 It is the schematic diagram before assembly of the nozzle and lock catch assembly of the utility model;

[0018] Figure 3 It is the schematic diagram when the lock catch assembly of the utility model locks the joint;

[0019] Figure 4 It is the schematic diagram before the movable lock head of the utility model unlocks the lock catch assembly;

[0020] Figure 5 It is the schematic diagram of the movable lock head of the utility model unlocking the lock catch assembly.

[0021] In the drawing:

[0022] 1, host;2, nozzle;11, end seat;12, sliding slot;13, lock pin;14, lock catch spring;15, wedge surface;16, battery;17, PCBA control panel;18, pump assembly;21, joint;22, fixed lock head;23, first taper surface;24, movable lock head;25, second taper surface;26, limit step;27, gear spring. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be described below in combination with the drawings and embodiments.

[0024] As Figures 1-5The utility model discloses a shower nozzle lock catch structure, including host computer 1 and nozzle 2, be equipped with end seat 11 on host computer 1, be equipped with connector 21 on nozzle 2, be equipped with several groups of lock catch assemblies on end seat 11, several groups of lock catch assemblies are spaced apart around the vertical center axis of end seat 11 and set up, the lower extreme of connector 21 is equipped with fixed lock head 22, when connector 21 is inserted end seat 11 along the vertical direction, fixed lock head 22 is connected with several groups of lock catch assemblies and cooperates to make connector 21 be locked in end seat 11, be equipped with unlocking assembly on connector 21, and unlocking assembly can unlock several lock catch assemblies, to make connector 21 pull out end seat 11 along the vertical direction. Nozzle 2 and host computer 1 constitute plug-in cooperation along the vertical direction, and they constitute adaptation through connector 21 and end seat 11. The lock catch assembly is around setting on end seat 11, and the lock catch assembly is connected from the horizontal direction connector 21 to lock it on end seat 11. Further, the unlocking assembly can unlock the lock catch assembly along the vertical direction, so that the user can operate nozzle 2 through single (up / down) direction, make it and host computer 1 complete assembly and disassembly action, convenient for user to use.

[0025] Several grooves 12 are equipped on end seat 11, and several grooves 12 are spaced apart around the vertical direction and set up, and a group of lock catch assemblies are equipped on groove 12, the lock catch assembly includes lock pin 13 and lock catch spring 14, and lock pin 13 and lock catch spring 14 are equipped in groove 12, and one end of lock catch spring 14 props up lock pin 13, and the head of lock pin 13 can extend out of groove 12 or retract into groove 12 along the horizontal direction. The groove 12 is set up on end seat 11 along the horizontal direction, so that lock pin 13 can slide along groove 12 along the horizontal direction, and it can be understood that the lock catch spring 14 is arranged in groove 12, and one end of lock catch spring 14 props up lock pin 13, so that the head of lock pin 13 always tends to extend out of groove 12. When connector 21 is inserted into end seat 11, fixed lock head 22 extrudes lock pin 13, so that lock pin 13 can overcome the elastic force of lock catch spring 14 and retract into groove 12, and then fixed lock head 22 and interface can pass through several lock catch assemblies. Further, when fixed lock head 22 passes, lock catch spring 14 drives lock pin 13 to extend out of groove 12 again and buckle on fixed lock head 22, so that connector 21 is locked on end seat 11.

[0026] The lower end of the fixed lock head 22 is provided with a first taper surface 23, when the connector 21 is inserted into the end seat 11 in the vertical direction, the fixed lock head 22 can push the lock pin 13 into the sliding groove 12 through the first taper surface 23. The nozzle 2 and the connector 21 are inserted and pulled in the vertical direction, the fixed lock head 22 first enters between the plurality of lock buckle assemblies, when the first taper surface 23 extrudes the plurality of lock pins 13, the first taper surface 23 can decompose the vertical downward pressure into horizontal force, so that the plurality of lock pins 13 retract into the sliding groove 12 to make the fixed lock head 22 pass. It can be understood that the upper end of the fixed lock head 22 is a flat surface, and after the head of the lock pin 13 pops out of the sliding groove 12, it can be buckled on the upper end surface of the fixed lock head 22, thereby forming a vertical locking to the connector 21.

[0027] The unlocking assembly includes a movable lock head 24, the head of the lock pin 13 is provided with a wedge surface 15, when the movable lock head 24 is inserted into the end seat 11 in the vertical direction, the movable lock head 24 can push the lock pin 13 into the sliding groove 12 through the wedge surface 15. The movable lock head 24 can also be inserted into the end seat 11 to trigger the plurality of lock buckle assemblies, specifically, when the movable lock head 24 is inserted into the end seat 11 in the vertical direction, the movable lock head 24 extrudes the wedge surface 15 downward to make the lock pin 13 retract into the sliding groove 12.

[0028] The upper end of the movable lock head 24 is provided with a second taper surface 25, when the movable lock head 24 is pulled out of the end seat 11 in the vertical direction, the movable lock head 24 can push the lock pin 13 into the sliding groove 12 through the second taper surface 25. It can be understood that the movable lock head 24 can be assembled on the end seat 11 or the connector 21, and the movable lock head 24 can move up and down relative to the plurality of lock buckle assemblies. When the movable lock head 24 passes through the plurality of lock buckle assemblies and moves upward in the vertical direction, the second taper surface 25 on the movable lock head 24 can extrude the lock pin 13 to retract into the sliding groove 12, at this time the fixed lock head 22 can pass through the plurality of lock buckle assemblies to make the connector 21 and the nozzle 2 be detached from the main machine 1.

[0029] The upper end of the connector 21 is provided with a limiting step 26, the movable lock head 24 is arranged between the fixed lock head 22 and the limiting step 26, and a gear spring 27 is arranged between the movable lock head 24 and the fixed lock head 22. Specifically, the fixed lock head 22 and the movable lock head 24 are arranged on the connector 21, and the movable lock head 24 can slide up and down along the connector 21.

[0030] When the connector 21 is inserted into the end seat 11 in the vertical direction, the fixed lock head 22 first compresses the plurality of lock pins 13 to retract into the sliding groove 12, and when the fixed lock head 22 passes, the lock pin 13 resets and buckles on the fixed lock head 22, so that the connector 21 is locked in the end seat 11.

[0031] Further, the nozzle 2 is pressed downwardly, so that the connector 21 is further inserted into the end seat 11, the movable lock head 24 is driven to pass through the plurality of lock pins 13, and then the whole nozzle 2 is pulled to move the connector 21 vertically upwardly (to be pulled out), firstly, the force can compress the gear spring 27, so that the fixed lock head 22 and the movable lock head 24 are matched to form a spindle structure, and secondly, the second taper surface 25 is in contact with the lock pin 13 to make it retract into the sliding groove 12, at this time, the fixed lock head 22 and the movable lock head 24 pass through the plurality of lock buckle assemblies together, so that the nozzle 2 is disassembled. The above operations can be realized by one hand, so that the user can use it effectively and conveniently.

[0032] The host 1 is provided with a pump assembly 18, a battery 16 and a PCBA control board 17, the PCBA control board 17 is connected with the pump assembly 18 and the battery 16 through lines, and the pump assembly 18 is connected with the end seat 11 in pairs.

[0033] The above is only a preferred embodiment of the present application, so equivalent changes or modifications made according to the structure, features and principles of the present application patent application range are included in the present application patent application range.

Claims

1. A water flosser nozzle locking structure, comprising a main unit (1) and a nozzle (2), wherein the main unit (1) is provided with an end seat (11) and the nozzle (2) is provided with a connector (21), characterized in that, The end base (11) is provided with several sets of locking assemblies, which are arranged at intervals around the vertical central axis of the end base (11). The lower end of the connector (21) is provided with a fixing lock head (22). When the connector (21) is inserted vertically into the end seat (11), the fixing lock head (22) is connected with several sets of locking components to lock the connector (21) in the end seat (11). The connector (21) is provided with an unlocking component, which can unlock several locking components, thereby allowing the connector (21) to be pulled out of the end seat (11) vertically.

2. The water flosser nozzle locking structure according to claim 1, characterized in that, The end seat (11) is provided with a plurality of sliding grooves (12), which are spaced apart from each other in a vertical direction. A set of locking components is provided on the sliding grooves (12). The locking components include a locking pin (13) and a locking spring (14). The locking pin (13) and the locking spring (14) pass through the sliding grooves (12). One end of the locking spring (14) supports the locking pin (13), so that the head of the locking pin (13) can extend out of the sliding groove (12) or retract into the sliding groove (12) in a horizontal direction.

3. The water flosser nozzle locking structure according to claim 2, characterized in that, The lower end of the fixed lock head (22) is provided with a first conical surface (23). When the connector (21) is inserted vertically into the end seat (11), the fixed lock head (22) can push the locking pin (13) into the slide groove (12) through the first conical surface (23).

4. The water flosser nozzle locking structure according to claim 1, characterized in that, The unlocking assembly includes a movable lock head (24), and the head of the locking pin (13) is provided with a wedge surface (15). When the movable lock head (24) is inserted vertically into the end seat (11), the movable lock head (24) can push the locking pin (13) into the slide groove (12) through the wedge surface (15).

5. The water flosser nozzle locking structure according to claim 4, characterized in that, The upper end of the movable lock head (24) is provided with a second conical surface (25). When the movable lock head (24) is pulled out of the end seat (11) in a vertical direction, the movable lock head (24) can push the locking pin (13) into the slide groove (12) through the second conical surface (25).

6. The water flosser nozzle locking structure according to any one of claims 4 or 5, characterized in that, The upper end of the connector (21) is provided with a limiting step (26), the movable lock head (24) is located between the fixed lock head (22) and the limiting step (26), and a stop spring (27) is provided between the movable lock head (24) and the fixed lock head (22).

7. The water flosser nozzle locking structure according to claim 1, characterized in that, The host (1) is equipped with a pump assembly (18), a battery (16) and a PCBA control board (17). The PCBA control board (17) is connected to the pump assembly (18) and the battery (16) respectively through lines. The pump assembly (18) is paired with the end seat (11).

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