CN215823402U - Fluid dispensing head for a nebulizer - Google Patents

Abstract

The utility model relates to a fluid distribution head for a sprayer, which comprises a distribution head, a wrench and an elastic piece, and is characterized in that: the elastic member includes: a pair of main arms extending from a front end engageable with the wrench primarily along respective main arm axes to opposite rear ends; a pair of sub arms including a rear portion connected to the rear end of the main arm at a connecting portion bent in an elbow form and a front portion extending from the rear portion to adjacent to the wrench along respective sub arm axes; compared with the prior art, the utility model has the advantages that: the front parts of the auxiliary arms are connected with each other to form a narrowing socket, the rear parts of the auxiliary arms are connected with the connecting parts to form a widening socket with a wider opening than the narrowing socket, the auxiliary arms are used for being connected with the joint part of the distribution head, the main arms are used for being deformed to match with a wrench to distribute liquid, the matching stability of the auxiliary arms and the distribution head is better, the main arms extend in the direction consistent with the linear distribution axis (Z) of the distribution conduit, the resilience force of the main arms is better, and meanwhile, the main arms are not easy to break.

Description

Fluid dispensing head for a nebulizer

Technical Field

The present invention relates to a sprayer, and more particularly to a fluid dispensing head for a sprayer.

Background

The sprayer is a miniature sprayer, and the product utilizes the movement of a piston in a pump body to make gas in the pump body flow, reduce the pressure, keep the pressure outside the pump body unchanged, generate pressure difference inside and outside the pump body, guide liquid out of the pump body through the pressure difference, and atomize instantly when the liquid meets high-speed airflow. Where sprayers may be commonly used for home hygiene, room deodorisation, or for treating fabrics etc. prior to ironing, one of the key components of such sprayers is a return spring, which is repeatedly stressed, for example, during the service life of the dispensing device, for which purpose the return spring must be strong enough to prevent any damage or made of a suitable material which is often expensive, for example, acetal resins such as POM (polyoxymethylene) are often used. In addition, during the assembly of the dispensing head, the application of the trigger to the frame and the application of the return spring between the trigger and the frame are always critical steps, such as the "all-plastic hand-buckled sprayer with high tenacity strength modified plastic mesh enclosure" of the chinese utility model with patent number ZL201720890938.4 (publication number CN207119491U), which discloses an assembly and structure of the above hand-buckled sprayer, the buckling position of the tail part of the plastic spring is matched with the position of the main body matched with the spring limiting rib, and the plane of the front end of the plastic spring is matched with the position of the wrench matched with the spring limiting rib.

However, since the R corners of the plastic spring are stress points when the plastic spring is assembled and pressed, the stress points are not strong enough at the R corners, which easily results in the plastic spring breaking, the white core and the poor resilience, and affects the hand feeling and the continuous function when used.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a fluid dispensing head for a nebulizer, which has a high return spring strength and a high resilience.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the fluid dispensing head for a sprayer comprises:

a dispensing head having a dispensing conduit extending along a linear dispensing axis (Z), the dispensing conduit and the dispensing head having a junction therebetween;

a wrench connected to the dispensing head, the wrench being actuatable to dispense a liquid;

a resilient member adapted to operate on the wrench with a resilient return action; the method is characterized in that: the elastic member includes:

a pair of main arms extending from a front end engageable with the wrench, mainly along respective main arm axes (B), to opposite rear ends;

a pair of secondary arms comprising a rear portion connected to the rear end of the primary arm by a connecting portion bent in the form of an elbow and a front portion extending from the rear portion along a respective secondary arm axis (C) to adjacent the wrench; the rear part of the auxiliary arm is gradually narrowed from the rear part to the front part, the front parts of the auxiliary arms are connected with each other to form a narrowed socket, and the rear part of the auxiliary arm is connected with the connecting part to form a widened socket with a wider opening than the narrowed socket; correspondingly, the engagement portion can be inserted from the widened socket into the narrowed socket to form a first abutment and a second abutment, respectively, which position the elastic element in the direction of the dispensing axis (Z).

In order to be able to achieve a stable condition of the elastic element and the dispensing head during assembly, it is preferred that the front portion of the secondary arm is connected to the adjacent primary arm by a connecting rib, which connects the secondary arm to the primary arm during assembly of the dispensing head, and that the connecting rib is disconnected to separate the secondary arm from the primary arm during actuation of the wrench.

Wherein the first connection relationship between the auxiliary arm and the main arm is as follows:

the secondary arm axis (C) is arranged alongside the primary arm axis (B), the connecting portion being provided, adjacent to the first abutment, with a connecting head extending upwards in the direction of the dispensing conduit, and correspondingly the coupling portion of the dispensing head being provided with a connecting arm which abuts against the connecting head.

From the viewpoint of simple structure, the connecting arm is L-shaped.

Wherein the second connection relationship between the auxiliary arm and the main arm is as follows:

the coupling part partially overlaps the main arm axis (B) at least in the up-down direction, and correspondingly, the coupling part of the dispenser head has a coupling socket inserted into the coupling part overlapping portion.

Further, the connecting socket is U-shaped.

In order to be able to disassemble and replace the wrench and the elastic member, the elastic member is preferably detachably connected with the wrench.

Furthermore, the front end of the main arm of the elastic element extends to the wrench to form a circle of connecting ring, a connecting cover is arranged between the connecting ring and the front end of the main arm, and correspondingly, the wrench is provided with a connecting convex part for the connecting ring to be arranged. The connecting convex part of the wrench and the connecting ring of the elastic part can be connected through the nesting of the connecting convex part of the wrench and the connecting ring, and the connecting cover can also strengthen the connecting strength of the connecting convex part and the connecting ring.

Compared with the prior art, the utility model has the advantages that: the front parts of the auxiliary arms are connected with each other to form a narrowing socket, the rear parts of the auxiliary arms are connected with the connecting parts to form a widening socket with a wider opening than the narrowing socket, the auxiliary arms are used for being connected with the joint part of the distribution head, the main arms are used for deforming to match with a wrench to distribute liquid, the matching stability of the auxiliary arms and the main arms is better, in addition, the main arms and the linear distribution axis (Z) direction of the distribution guide pipe extend uniformly, the resilience force of the main arms is better, meanwhile, the main arms are not easy to break, and the device has the characteristics of long service life and strong stability.

Drawings

Fig. 1 is a schematic structural view of the connection between the elastic member and the wrench in embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of an elastic member according to embodiment 1 of the present invention;

FIG. 3 is a schematic view of another angle of FIG. 1;

FIG. 4 is a schematic view showing the structure of the elastic member attached to the dispensing head in example 1 of the present invention;

FIG. 5 is a schematic structural view of an elastic member in example 2 of the present invention;

FIG. 6 is a schematic structural view of a dispensing head in embodiment 2 of the present invention;

fig. 7 is an exploded view of the wrench and the elastic member detachably connected according to embodiment 3 of the present invention.

Fig. 8 is a schematic structural view of the deformation of the elastic member in embodiment 1, 2 or 3 of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

Example 1

As shown in FIGS. 1 to 4, the preferred embodiment of the present invention is shown. The fluid dispensing head 1 for a nebulizer of the present embodiment comprises a dispensing head 1, a wrench 2 and a resilient member 3, the dispensing head 1 having a dispensing conduit 11 extending along a linear dispensing axis (Z), wherein the dispensing conduit 11 and the dispensing head 1 have a junction 12 therebetween; and wrench 2 connected to dispensing head 1, wrench 2 being able to be actuated to dispense liquid; while the elastic element 3 is suitable to operate on the wrench 2 with an elastic return action, in particular, the elastic element 3 comprises a pair of main arms 31 and a pair of secondary arms 32, the main arms 31 extending from a front end 31a, able to engage with the wrench 2, mainly along the axis (B) of the respective main arms 31 to an opposite rear end 31B, and the secondary arms 32 comprising a rear portion 32C, bent in the form of an elbow, with a connecting portion 33 connected to the rear end 31B of the main arms 31 and a front portion 32d, extending from the rear portion 32C along the axis (C) of the respective secondary arms 32, adjacent to the wrench 2; the rear part 32c of the sub-arm 32 is gradually narrowed to the front part 32d, the front parts 32d of the sub-arms 32 are also connected with each other to form a narrowed socket 34, and the rear part 32c of the sub-arm 32 is connected with the connecting part 33 to form a widened socket 35 with a wider opening than the narrowed socket 34; correspondingly, the engagement portion 12 can be inserted from the widened socket 35 into the narrowed socket 34, to form a first abutment 341 and a second abutment 351 respectively locating the elastic member 3 in the direction of the dispensing axis (Z), the narrowed insertion opening 34 is formed by connecting the front portions 32d of the sub-arms 32 to each other, the rear portions 32c of the sub-arms 32 are connected to the connecting portion 33 to form a widened insertion opening 35 having a wider opening than the narrowed insertion opening 34, namely, the first abutting portion 341 and the second abutting portion 351 cooperate with each other, wherein the sub arm 32 is used for connecting with the joint portion 12 of the dispensing head 1, and the main arm 31 is used for deforming, namely, supplying to the middle (as shown in fig. 8) to match with the wrench 2 to dispense liquid, so that the matching stability of the two is better, in addition, main arm 31 extends in line with the linear dispensing axis (Z) of dispensing conduit 11, and is more resilient and less likely to break.

This embodiment also solves the problem of how to assemble the dispensing head 1, i.e. how to stabilize the elastic element 3 and the dispensing head 1 during assembly, wherein the front portion 32d of the secondary arm 32 is connected to the adjacent main arm 31 by the connecting rib 4, and in the assembled state of the dispensing head 1, the connecting rib 4 connects the secondary arm 32 to the main arm 31, so as to avoid the shaking between the secondary arm 32 and the main arm 31, and facilitate assembly with the dispensing head 1, and in the actuated state of the wrench 2, the connecting rib 4 is disconnected to separate the secondary arm 32 from the main arm 31, so that the main arm 31 is used to deform to match the wrench 2 to dispense liquid. In addition, the connection relationship between the auxiliary arm 32 and the main arm 31 in this embodiment is that the axis (C) of the auxiliary arm 32 is arranged side by side with the axis (B) of the main arm 31, the connecting part 33 has a connecting head 331 extending upward in the direction of the dispensing conduit 11 adjacent to the first abutting part 341, correspondingly, the joint part 12 of the dispensing head 1 has a connecting arm 121 abutting against the connecting head 331, the connecting arm 121 is "L" shaped, and the material of the elastic member in this embodiment is polypropylene PP.

Example 2

The structure is basically the same as that of the embodiment 1, and the only difference is that: the connection relationship between the auxiliary arm 32 and the main arm 31 is as follows: the connecting portion 33 and the main arm 31 have an axis (B) partially overlapped at least in the vertical direction, and correspondingly, the joint portion 12 of the dispenser head 1 has a connecting socket 122 inserted into the overlapped portion of the connecting portion 33, and the connecting socket 122 is formed in a "U" shape as shown in fig. 5 and 6.

Example 3

As shown in fig. 7, the structure is basically the same as that of embodiment 1, and the only difference is that: the wrench 2 and the elastic element 3 are connected in a detachable connection manner, so as to realize the replacement of the wrench 2 and the elastic element 3, wherein the front end 31a of the main arm 31 of the elastic element 3 extends continuously in the direction of the wrench 2 to form a circle of connecting ring 310, a connecting cover 311 is arranged between the connecting ring 310 and the front end 31a of the main arm 31, correspondingly, the wrench 2 is provided with a connecting convex part 21 for the connecting ring 310 to be arranged in a circle, the wrench 2 and the elastic element 3 can be connected by the nesting of the connecting convex part 21 of the wrench 2 and the connecting ring 310 of the elastic element 3, and the connecting cover 311 can also strengthen the connection strength of the wrench 2 and the elastic element 3.

Example 4

The structure is basically the same as that of the embodiment 3, and the only difference is that: the front end 31a of the main arm 31 of the elastic member 3 is directly inserted into the wrench 2.

Claims (8)

1. A fluid dispensing head for a sprayer comprising:

-a dispensing head (1) having a dispensing conduit (11) extending along a rectilinear dispensing axis (Z), said dispensing conduit (11) and said dispensing head (1) having a junction (12) therebetween;

a wrench (2) connected to the dispensing head (1), the wrench (2) being actuatable to dispense liquid;

-an elastic element (3) suitable to operate on said wrench (2) with an elastic return action; the method is characterized in that: the elastic member (3) includes:

a pair of main arms (31), said main arms (31) extending from a front end (31a) engageable with said wrench (2) mainly along respective main arm (31) axes (B) to opposite rear ends (31B);

a pair of secondary arms (32), the secondary arms (32) comprising a rear portion (32C) connected to the rear end (31b) of the primary arm (31) by a connecting portion (33) bent in an elbow form and a front portion (32d) extending from the rear portion (32C) along the axis (C) of the respective secondary arm (32) to be adjacent to the wrench (2); the rear part (32c) to the front part (32d) of the auxiliary arm (32) are gradually narrowed, the front parts (32d) of the auxiliary arms (32) are connected with each other to form a narrowed socket (34), and the rear part (32c) of the auxiliary arm (32) is connected with the connecting part (33) to form a widened socket (35) with a wider opening than the narrowed socket (34); correspondingly, the engagement portion (12) is insertable from the widened socket (35) into the narrowed socket (34) to form a first abutment portion (341) and a second abutment portion (351), respectively, which position the elastic member (3) in the direction of the dispensing axis (Z).

2. The fluid dispensing head for a nebulizer of claim 1 wherein: the front part (32d) of the auxiliary arm (32) is connected with the adjacent main arm (31) through a connecting rib (4), the connecting rib (4) connects the auxiliary arm (32) with the main arm (31) in a state of assembling the distribution head (1), and the connecting rib (4) is disconnected to separate the auxiliary arm (32) from the main arm (31) in a state of actuating the wrench (2).

3. The fluid dispensing head for a nebulizer of claim 2 wherein: the axis (C) of the secondary arm (32) is arranged side by side with the axis (B) of the primary arm (31), the connecting part (33) has, adjacent to the first abutment (341), a connecting head (331) extending upwards in the direction of the dispensing conduit (11), and correspondingly, the coupling part (12) of the dispensing head (1) has a connecting arm (121) which abuts against the connecting head (331).

4. The fluid dispensing head for a nebulizer of claim 3 wherein: the connecting arm (121) is L-shaped.

5. The fluid dispensing head for a nebulizer of claim 2 wherein: the connecting part (33) and the axis (B) of the main arm (31) are at least partially overlapped in the vertical direction, and correspondingly, the joint part (12) of the dispensing head (1) is provided with a connecting socket (122) inserted in the overlapped part of the connecting part (33).

6. The fluid dispensing head for a nebulizer of claim 5 wherein: the connecting socket (122) is U-shaped.

7. A fluid dispensing head for a nebulizer according to any one of claims 1 to 6 wherein: the elastic piece (3) and the wrench (2) are detachably connected.

8. The fluid dispensing head for a nebulizer of claim 7 wherein: the front end (31a) of the main arm (31) of the elastic element (3) extends continuously in the direction of the wrench (2) to form a circle of connecting ring (310), a connecting cover (311) is arranged between the connecting ring (310) and the front end (31a) of the main arm (31), and correspondingly, the wrench (2) is provided with a connecting convex part (21) for the connecting ring (310) to be arranged in a circle.

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