Handle mounting structure for sprayer and sprayer

Abstract

The utility model discloses a handle mounting structure for a sprayer and the sprayer, the handle mounting structure for the sprayer comprises a mounting seat (2), a first piston (1), a handle (3) and a first elastic piece (4); the handle (3) is matched with the first piston (1) in an abutting mode, and under the action of external force, the first piston (1) has the following states relative to the handle (3): in the first state, the handle (3) is stressed to press the first piston (1), the first elastic piece (4) is in an energy storage state, the size of the liquid inlet cavity (21) is reduced, and the air pressure is increased; and in the second state, the handle (3) is not stressed, the first elastic piece (4) releases energy to push the first piston (1) to reset, the volume of the liquid inlet cavity (21) is increased, and the air pressure is reduced. The handle is matched with the first piston in an abutting mode, in the handle rotating process, the first piston cannot deflect along with the handle, sealing between the edge of the first piston and the cavity wall of the liquid inlet cavity is good, and the liquid leakage risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying, in particular to a spray head and a sprayer applying the spray head. Background Art

[0002] A sprayer utilizes Bernoulli's principle to eject a liquid by changing the air pressure in a corresponding cavity, and is commonly used for spraying water, oil, etc.

[0003] For example, "A Spray Assembly and a Spraying Device Comprising the Same" disclosed in the authorized publication number CN219043404U. The spray assembly includes: a nozzle support provided with an inner cavity; a liquid outlet head fixedly arranged at one end of the inner cavity, and a fixing cavity is arranged at one end of the liquid outlet head, and a liquid outlet channel is arranged at the other end; an atomizing head provided with an atomizing channel for converting a liquid into a vapor mist and ejecting it outward, the atomizing channel is communicated with the liquid outlet channel, and the atomizing head includes a rod body inserted into the fixing cavity and a cap body exposed outside the fixing cavity, the cap body is connected to one end of the rod body, and the outer edge of the cap body extends beyond the orifice of the fixing cavity to buckle on the edge of the orifice of the fixing cavity; a first piston movably arranged at the other end of the inner cavity, the first piston has a sealing state in which it moves towards the end where the liquid outlet head is located under the action of a first elastic member to cut off the liquid outlet channel, and an outlet state in which it moves away from the end where the liquid outlet head is located when the pressure received at the end close to the liquid outlet head is greater than the action force of the first elastic member to make the liquid outlet channel unblocked. A second piston is movably arranged in the liquid inlet cavity, and a handle is installed on the nozzle, and one end of the handle extends into the nozzle and is connected to the second piston.

[0004] However, in the above patent, the handle is connected to the second piston. During the rotation of the handle, the piston is prone to yaw accordingly, and there may be a disconnection and a gap between the local edge of the piston and the wall of the liquid inlet cavity, reducing the sealing performance and resulting in liquid leakage. Content of the Utility Model

[0005] The first technical problem to be solved by the utility model is to provide a handle mounting structure for a sprayer with better sealing effect in view of the current situation of the prior art.

[0006] The second technical problem to be solved by the utility model is to provide a sprayer.

[0007] The technical solution adopted by the utility model to solve the above first technical problem is: a handle mounting structure for a sprayer, characterized in that it includes

[0008] a mounting seat having an open liquid inlet cavity;

[0009] a first piston movably arranged in the liquid inlet cavity;

[0010] a handle rotatably arranged on the mounting seat and located outside the liquid inlet cavity;

[0011] A first elastic member is disposed in the liquid inlet cavity and acts on the first piston;

[0012] It is characterized in that:

[0013] The handle is in abutting cooperation with the first piston. Under the action of an external force, the first piston has the following states relative to the handle:

[0014] In the first state, the handle is stressed and presses the first piston, and the first elastic member is in an energy storage state. The volume of the liquid inlet cavity decreases and the air pressure increases;

[0015] In the second state, the handle is not stressed, and the first elastic member releases energy to push the first piston to reset. The volume of the liquid inlet cavity becomes larger and the air pressure decreases.

[0016] For the convenience of installation and positioning, between the handle and the first piston, one of them has a positioning convex portion, and the other has a positioning groove for positioning the positioning convex portion.

[0017] For the convenience of the positioning convex portion being snapped into the positioning groove, the positioning convex portion has an arc surface.

[0018] Preferably, the first piston moves in the up and down direction, and the handle is in abutting cooperation with the top of the first piston.

[0019] Preferably, the mounting seat has a liquid outlet and a liquid inlet communicating with the liquid inlet cavity. A first sealing sphere for opening and closing the liquid inlet is provided at the liquid inlet, and a second sealing sphere for opening and closing the liquid outlet is provided at the liquid outlet. The diameter and mass of the first sealing sphere are both larger than the diameter and mass of the second sealing sphere.

[0020] Due to the larger diameter and larger mass of the first sealing sphere, a larger water pressure is required to push the first sealing sphere to move, which is beneficial to increasing the suction force, increasing the amount of water entering the liquid inlet cavity, and thus making the amount of water sprayed by the sprayer larger.

[0021] The technical solution adopted by the present utility model to solve the above-mentioned second technical problem is: A sprayer, characterized in that: it includes the handle mounting structure for the sprayer as described above.

[0022] The sprayer further includes

[0023] A liquid outlet head is disposed on the mounting seat and has a liquid outlet cavity communicating with the liquid inlet cavity;

[0024] An atomizing head has a spray hole for the liquid to be sprayed in an atomized state and communicating with the liquid outlet cavity; and, the atomizing head is embedded in the liquid outlet cavity.

[0025] In order to stably set the atomizing head on the liquid outlet head, an annular rib is provided on the outer periphery of the atomizing head, and an annular bump for anti-disengagement is provided on the chamber wall of the liquid outlet cavity and located on the front side of the annular rib.

[0026] In order to maintain the atomizing head in the required position and prevent circumferential rotation, the outer peripheral cross-section of the atomizing head is non-circular, and the corresponding position on the chamber wall of the liquid outlet cavity is also non-circular with a matching size and shape. Through the non-circular structure, the atomizing head is limited, and the atomizing head will not rotate circumferentially relative to the liquid outlet head, which is beneficial to maintaining the atomizing head in the required position.

[0027] Preferably, the mounting seat has a liquid outlet connected to the liquid inlet cavity; the sprayer further includes

[0028] a second piston, movably arranged in the liquid outlet cavity;

[0029] a second elastic member, acting on the second piston and having a tendency to block the liquid outlet cavity by the second piston;

[0030] Along the liquid flow direction, the liquid inlet cavity, the liquid outlet, the liquid outlet cavity, and the atomizing head are sequentially communicated.

[0031] In order to extend the time of continuously pumping out liquid, the sprayer further includes a pump housing connected to the mounting seat. The pump housing has a mounting cavity, which is communicated with the channel between the liquid outlet and the liquid outlet cavity. A back-pressure piston is arranged in the mounting cavity, and a bottom plug with an opening is arranged at the bottom of the pump housing. A back-pressure spring is also arranged in the pump housing between the back-pressure piston and the bottom plug;

[0032] The inner cavity wall at the bottom of the mounting cavity extends outward to form a stepped portion at the bottom of the pump housing.

[0033] In this way, by setting the stepped portion, that is, the bottom of the pump housing extends horizontally, it is beneficial to increase the volume of the mounting cavity, thereby being beneficial to extending the time of continuously pumping out liquid.

[0034] Compared with the prior art, the advantages of the present utility model are as follows: By the handle being in abutting cooperation with the first piston, the handle and the first piston are not connected. During the rotation of the handle, the first piston can maintain its corresponding position in the liquid inlet cavity without yawing with the handle, and the seal between the edge of the first piston and the chamber wall of the liquid inlet cavity is good and does not come off, thereby reducing the risk of liquid leakage; the structure is reasonable and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a partial schematic view of the sprayer according to Embodiment 1 of the present utility model;

[0036] Figure 2 is Figure 1 exploded view of;

[0037] Figure 3 isFigure 1 Another exploded view;

[0038] Figure 4 Schematic diagram of the assembly of the handle and the first piston in the first embodiment of the present utility model;

[0039] Figure 5 is Figure 4 Cross-sectional view;

[0040] Figure 6 is Figure 4 Exploded view of the handle and the first piston;

[0041] Figure 7 is Figure 4 Another exploded view of the handle and the first piston;

[0042] Figure 8 Schematic diagram of the assembly of the atomizing head, the liquid outlet head, etc. in the first embodiment of the present utility model;

[0043] Figure 9 is Figure 8 Exploded view;

[0044] Figure 10 is Figure 8 Cross-sectional view;

[0045] Figure 11 is Figure 1 Cross-sectional view;

[0046] Figure 12 Schematic diagram of the sprayer in the second embodiment of the present utility model;

[0047] Figure 13 is Figure 12 Schematic diagram of the assembly of the atomizing head, the liquid outlet head, etc. in;

[0048] Figure 14 Schematic diagram of the atomizing head in the second embodiment of the present utility model;

[0049] Figure 15 is Figure 14 Schematic diagram of another position;

[0050] Figure 16 is Figure 13 Exploded view;

[0051] Figure 17 is Figure 13 Cross-sectional view. Detailed implementation manners

[0052] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0053] Embodiment 1

[0054] SeeFigures 1 to 11 , which is a preferred embodiment of the present utility model. The handle mounting structure for a sprayer includes main components such as a mounting base 2, a first piston 1, a handle 3, a first elastic member 4, etc.

[0055] Among them, referring to Figure 11 , the mounting base 2 has an open liquid inlet chamber 21; the mounting base 2 has a liquid outlet 23 and a liquid inlet 22 that communicate with the liquid inlet chamber 21. A first sealing sphere 10 for opening and closing the liquid inlet 22 is provided at the liquid inlet 22, and a second sealing sphere 20 for opening and closing the liquid outlet 23 is provided at the liquid outlet 23. The diameter and mass of the first sealing sphere 10 are both greater than the diameter and mass of the second sealing sphere 20. For example, the first sealing sphere 10 is made of glass with a diameter of 4 mm, and the second sealing sphere 20 is also made of glass with a diameter of 3 mm.

[0056] The first piston 1 is movably disposed in the liquid inlet chamber 21.

[0057] The handle 3 is rotatably disposed on the mounting base 2 and is located outside the liquid inlet chamber 21; the handle 3 has a positioning convex portion 31, and the first piston 1 has a positioning groove 11 for positioning the positioning convex portion 31. The positions of the positioning groove 11 and the positioning convex portion 31 can also be interchanged. The positioning convex portion 31 has an arc surface.

[0058] Referring to Figure 11 , the first elastic member 4 is disposed in the liquid inlet chamber 21 and acts on the first piston 1; the first elastic member 4 is a spring or a spring piece. For the convenience of spring installation and positioning, the bottom of the liquid inlet chamber 21 has a cross-shaped convex block for sleeving and positioning the end of the spring.

[0059] Referring to Figures 4 to 8 , the handle 3 is in contact and cooperation with the first piston 1. Under the action of an external force, the first piston 1 has the following states relative to the handle 3: In the first state, the handle 3 is pressed to press the first piston 1, and the first elastic member 4 is in an energy storage state, and the volume of the liquid inlet chamber 21 decreases and the air pressure increases; in the second state, the handle 3 is not stressed, and the first elastic member 4 releases energy to push the first piston 1 to reset, and the volume of the liquid inlet chamber 21 becomes larger and the air pressure decreases. The first piston 1 moves in the up and down direction, and the handle 3 is in contact and cooperation with the top of the first piston 1.

[0060] This embodiment further includes a sprayer, which includes the handle mounting structure for a sprayer as described above. Referring to Figures 1 to 3 It is a part of the sprayer. The sprayer is, for example, a spray bottle, an oil spray bottle, a watering can, etc.

[0061] Figure 1 、 Figures 8 to 10 , the sprayer further includes a liquid outlet head 5, an atomizing head 8, a second piston 6, a second elastic member 7, a housing 100, a pump housing 200, etc.

[0062] Among them, the liquid outlet head 5 is arranged on the mounting base 2 and has a liquid outlet cavity 51 communicating with the liquid inlet cavity 21. To facilitate the installation of the second piston 6 and the second elastic member 7, the liquid outlet head 5 includes a connected first part 52 and a second part 53. The liquid outlet cavity 51 is partially located in the first part 52 and partially located in the second part 53. The shape and structure of the liquid outlet head 5 are adjusted according to needs.

[0063] The atomizing head 8 has a spray hole 84 for the liquid to be sprayed in an atomized state and communicating with the liquid outlet cavity 51; and, the atomizing head 8 is embedded in the liquid outlet cavity 51, that is to say, the atomizing head 8 does not protrude outside the liquid head 5, and the atomizing head 8 is completely located in the liquid outlet cavity 51. To make the atomizing head 8 and the liquid outlet head 5 fit firmly, the outer periphery of the atomizing head 8 has an annular rib 81, and the cavity wall of the liquid outlet cavity 51 has an annular protrusion 511 located on the front side of the annular rib 81 for anti-disengagement. The cross-section of the spray hole 84 of the atomizing head 8 is circular, and the water spraying effect is good.

[0064] The second piston 6 is movably arranged in the liquid outlet cavity 51.

[0065] The second elastic member 7 acts on the second piston 6 and has a tendency to block the liquid outlet cavity 51; the second elastic member 7 is a spring or a spring piece. To facilitate the installation and positioning of the spring, the corresponding position of the liquid outlet cavity 51 has a positioning rib column for the end of the spring to be sleeved and positioned. Along the liquid flow direction, the liquid inlet 22, the liquid inlet cavity 21, the liquid outlet 23, the liquid outlet cavity 51, and the atomizing head 8 are sequentially communicated.

[0066] The mounting base 2 is connected to the housing 100, the handle 3 extends outside the housing 100, and the atomizing head 8 is exposed outside the housing 100.

[0067] See Figure 11 , the sprayer further includes a pump housing 200 connected to the mounting base 2. The pump housing 200 has a mounting cavity, and this mounting cavity is communicated with the channel between the liquid outlet 23 and the liquid outlet cavity 51. A back-pressure piston 300 is arranged in this mounting cavity, and the bottom of the pump housing 200 is provided with a bottom plug 400 having an opening. A back-pressure spring 500 is also arranged in the pump housing 200 between the back-pressure piston 300 and the bottom plug 400; thus, it is beneficial to continuously pump out the liquid. These are prior arts and will not be elaborated here. Preferably, the inner cavity wall at the bottom of the mounting cavity extends outward so that a stepped portion 200a is formed at the bottom of the pump housing 200, that is, the bottom of the pump housing 200 extends horizontally, which is beneficial to increasing the volume of the mounting cavity, and thus beneficial to extending the time of continuously pumping out the liquid.

[0068] The working principle and the using process are as follows.

[0069] From Figures 1 to 4Look, the handle 3 is not connected to the first piston 1. During the rotation of the handle 3, the first piston 1 moves up and down, and the verticality of the up-and-down movement of the first piston 1 is good. The first piston 1 is not prone to yaw left and right. In this way, the sealing between the left and right edges of the first piston 1 and the wall of the liquid inlet chamber 21 is good, reducing the risk of liquid leakage; the structure is reasonable and practical; there is no need to connect the handle 3 to the first piston 1, which is convenient for assembly.

[0070] The spraying principle is the same as that of "A spraying assembly and a spraying device including the same" disclosed in the authorized publication number CN219043404U. When the handle 3 is pressed, the first piston 1 moves downward, the volume of the liquid inlet chamber 21 decreases and the pressure increases, and the liquid in the liquid inlet chamber 21 is sprayed out through the liquid outlet chamber 51 and the atomizing head 8 (from Figure 10 Look, the liquid in the liquid outlet chamber 51 overcomes the acting force of the second elastic member 7, and the second piston 6 moves to the right); when the handle 3 is released, the first piston 1 resets upward, the volume of the liquid inlet chamber 21 becomes larger and the pressure decreases, and new liquid enters the liquid inlet chamber 21 from the liquid inlet 22. In this way, during the repeated pressing of the handle 3, the atomized liquid is continuously sprayed out from the spray holes 84 of the atomizing head 8.

[0071] Embodiment 2

[0072] See Figures 12 to 17 , which is another embodiment of the present invention. The difference from Embodiment 1 is that the shape and structure of the atomizing head 8 are different.

[0073] In this embodiment, the outer peripheral cross-section of the atomizing head 8 is non-circular, and the corresponding position on the wall of the liquid outlet chamber 51 is also non-circular with matching size and shape. The non-circular shape can be, for example, only a partial arc or a polygon. The atomizing head 8 includes an extension section 82 and a flange 83 protruding from the outer periphery of the extension section 82. Preferably, the spray holes 84 of the atomizing head 8 extend horizontally and are misaligned with the outlet end of the liquid outlet head 5. For example, the outlet end extends vertically. The atomizing head 8 has a good oil spraying effect and the spray is fan-shaped.

[0074] In the description and claims of the present invention, terms indicating directions such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc. are used to describe various example structural parts and elements of the present invention. However, these terms are used here only for the purpose of convenient description and are determined based on the example orientations shown in the drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity.

Claims

1. A handle mounting structure for a sprayer, characterized in that: Included The mounting seat (2) has an open liquid inlet cavity (21); A first piston (1) is movably disposed in the liquid inlet chamber (21); A handle (3) is rotatably disposed on the mounting seat (2) and is located outside the liquid inlet cavity (21); A first elastic member (4) is disposed in the liquid inlet chamber (21) and acts on the first piston (1); Features: The handle (3) and the first piston (1) are in abutment with each other. Under the action of external force, the first piston (1) has the following state relative to the handle (3): In the first state, the handle (3) is subjected to force to press the first piston (1), the first elastic member (4) is in an energy storage state, the volume of the liquid inlet chamber (21) decreases, and the air pressure increases; In the second state, the handle (3) is not subjected to force, the first elastic member (4) releases energy to push the first piston (1) to return to its original position, the volume of the liquid inlet chamber (21) increases, and the air pressure decreases.

2. The handle installation structure according to claim 1, characterized in that: Between the handle (3) and the first piston (1), one of them has a positioning protrusion (31), and the other has a positioning groove (11) for positioning the positioning protrusion (31).

3. The handle installation structure according to claim 2, characterized in that: The positioning protrusion (31) has a curved surface.

4. The handle installation structure according to claim 1, characterized in that: The first piston (1) moves in the up-down direction, and the handle (3) is in contact with the top of the first piston (1).

5. The handle installation structure according to claim 1, characterized in that: The mounting seat (2) comprises a liquid outlet (23) and a liquid inlet (22) which are connected to the liquid inlet cavity (21); a first sealing ball (10) for opening and closing the liquid inlet (22) is arranged at the liquid inlet (22); a second sealing ball (20) for opening and closing the liquid outlet (23) is arranged at the liquid outlet (23); the diameter and mass of the first sealing ball (10) are both greater than the diameter and mass of the second sealing ball (20).

6. A sprayer, characterized in that: The invention comprises a handle mounting structure for a sprayer according to any one of claims 1 to 5.

7. The sprayer according to claim 6, characterized in that: The sprayer also includes A liquid outlet head (5) is arranged on the mounting seat (2) and has a liquid outlet cavity (51) connected to the liquid inlet cavity (21); The atomizing head (8) has a spray hole (84) for spraying liquid in an atomized form and is connected to the liquid outlet cavity (51); and the atomizing head (8) is embedded in the liquid outlet cavity (51).

8. The sprayer according to claim 7, characterized in that: The outer periphery of the atomizing head (8) has an annular convex rib (81), and the cavity wall of the liquid outlet cavity (51) has an annular protrusion (511) located in front of the annular convex rib (81) for preventing it from falling off.

9. The sprayer according to claim 7, characterized in that: The outer cross-section of the atomizing head (8) is non-circular, and the corresponding position of the cavity wall of the liquid outlet cavity (51) is also non-circular in size and shape.

10. The sprayer according to claim 7, characterized in that: The mounting seat (2) has a liquid outlet (23) connected to the liquid inlet cavity (21); the sprayer also includes A second piston (6) is movably disposed in the liquid outlet chamber (51); The second elastic member (7) acts on the second piston (6) and has a tendency to make the second piston (6) block the liquid outlet cavity (51); Along the liquid flow direction, the liquid inlet cavity (21), the liquid outlet (23), the liquid outlet cavity (51), and the atomizing head (8) are connected in sequence.

11. The sprayer according to claim 7, characterized in that: The sprayer further comprises a pump housing (200) connected to the mounting seat (2), the pump housing (200) having a mounting cavity, the mounting cavity being connected to the passage between the liquid outlet (23) and the liquid outlet cavity (51), a standby pressure piston (300) being arranged in the mounting cavity, a bottom plug (400) having an opening being arranged at the bottom of the pump housing (200), and a standby pressure spring (500) being arranged between the standby pressure piston (300) and the bottom plug (400) being arranged in the pump housing (200); The inner cavity wall at the bottom of the installation cavity extends outwards so that a step portion (200a) is formed at the bottom of the pump housing (200).

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