Spray head with switch and sprayer applying same

Abstract

The utility model relates to a spray head with switch and the sprayer of application has the spray head, and the spray head includes: the gun body, its lower extreme is provided with the connecting cover, is provided with the connecting hole that penetrates up and down on it, the connecting rod is inserted in the connecting hole and can move up and down, the connecting rod outside wall is provided with the vertical extension's locating strip, the switch is the tubular structure, is set up in the connecting rod outside, the inner side wall of switch is provided with the first fender that abuts with the locating strip, and the first fender is provided with the accommodation slot that the locating strip inserts on, wherein: in the state that rotates the switch makes the locating strip directly opposite the accommodation slot, the connecting rod can move up and down relative to the switch, and in the state that rotates the switch makes the locating strip deviates the accommodation slot, the locating strip is resisted by the first fender makes this connecting rod be limited to move up and down relative to the switch.

Description

Technical Field

[0001] This utility model relates to the field of sprayers, and more particularly to a spray head with a switch and a sprayer using the spray head. Background Technology

[0002] A sprayer is a device widely used in agriculture, horticulture, cleaning and industry. Its core function is to achieve uniform spraying or covering by converting liquids (such as water, pesticides, cleaning agents, etc.) into fine droplets or mist.

[0003] With the continuous advancement of technology, there are more and more types of sprayers. Common manual sprayers are mainly of the hand-operated or push-button type, which atomize and spray liquid by pressing a wrench or pressing the nozzle. Existing hand-operated sprayers mainly consist of a gun body, connecting rod, large ring, suction tube, piston, nozzle cap, water distributor, wrench, etc. Pressing the wrench continuously or pressing the connecting rod directly from top to bottom will cause the liquid to be sprayed out continuously in a mist.

[0004] Therefore, existing hand-operated sprayers are prone to leakage when children accidentally press the button or during transportation. Utility Model Content

[0005] The first technical problem to be solved by this utility model is to provide a spray head with a switch that is less prone to leakage, in light of the current state of the technology.

[0006] The second technical problem to be solved by this utility model is to provide a sprayer with the above-mentioned spray head, in view of the current state of the prior art.

[0007] The technical solution adopted by this utility model to solve the first technical problem mentioned above is as follows: a spray head with a switch, characterized in that it includes: a gun body, the lower end of which is provided with a connecting cover, the connecting cover being provided with a vertically penetrating connecting hole; a connecting rod, the lower end of which is movably inserted into the connecting hole, the outer side wall of the connecting rod being provided with a vertically extending positioning strip; a switch, which is tubular in structure and sleeved on the outside of the connecting rod, the inner side wall of the switch being provided with a first stop edge that abuts against the positioning strip, the first stop edge having a clearance groove for the positioning strip to be inserted; wherein: when the switch is rotated so that the positioning strip is facing the clearance groove, the connecting rod can move up and down relative to the switch; and when the switch is rotated so that the positioning strip deviates from the clearance groove, the positioning strip is abutted by the first stop edge, thus restricting the connecting rod from moving up and down relative to the switch.

[0008] Preferably, the switch is inserted into the gap formed between the outer wall of the connecting rod and the inner wall of the connecting hole. The outer wall of the switch has an annular rib extending circumferentially along its side, and the wall of the connecting hole inside the connecting cover has an annular groove extending circumferentially along its side. The annular rib engages with the annular groove. With this design, the switch and the connecting cover are axially fixed but circumferentially rotatable.

[0009] Preferably, a second stop is provided on the wall of the connecting hole, located below the annular groove, and a positioning groove extending a predetermined length circumferentially along the hole wall is formed on the second stop; a positioning block extending downward and matching the positioning groove is provided at the lower part of the switch; wherein, when the switch is rotated so that the positioning strip is facing the clearance groove, the positioning block is rotated to one side of the positioning groove. By adopting the above scheme, the angle of rotation of the switch relative to the connecting cover is defined, thereby facilitating that when the clearance groove on the switch rotates to a specific position, it aligns with the positioning strip on the connecting rod.

[0010] Preferably, the switch includes a large inner diameter section and a small inner diameter section, the small inner diameter section being provided with the annular rib, and the outer diameter of the large inner diameter section being larger than the inner diameter of the connecting hole. With this design, the lower end of the large inner diameter section abuts against the solid portion constituting the connecting hole, thereby preventing the switch from being mistakenly pressed down by the connecting rod and moving downwards when the positioning strip is deviated from the relief groove, ensuring that the switch and the connecting cover are relatively fixed in the axial direction.

[0011] To facilitate the rotation of the switch, a handle is provided on the outer wall of the switch for rotation.

[0012] Preferably, the connection between the handle and the outer wall of the switch has a downward-facing notch, and the wall of the connecting hole is located within the notch.

[0013] Preferably, there are two positioning bars, and correspondingly, there are two clearance grooves.

[0014] Preferably, the relief groove has an opening structure whose diameter gradually increases from bottom to top. With the above solution, the positioning strip can be easily inserted into the relief groove.

[0015] Preferably, the upper edge of the first stop is lower than the upper edge of the inner wall of the switch. With this design, the lower end of the positioning strip always abuts against the first stop and is located within the inner cavity of the switch, which facilitates the adaptation of the switch to the positioning strip.

[0016] The technical solution adopted by this utility model to solve the first technical problem mentioned above is: a sprayer, which uses the above-mentioned spray head.

[0017] Compared with the prior art, the advantages of this utility model are as follows: when the switch is rotated so that the positioning strip is facing the relief groove, the connecting rod can move up and down relative to the switch; when the positioning strip is deviated from the relief groove, the positioning strip is blocked by the first stop edge, so that the connecting rod is limited up and down and cannot spray liquid; the switch can prevent the sprayer from being accidentally pressed and causing leakage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the spray head in an embodiment of this utility model;

[0019] Figure 2 for Figure 1 Cross-sectional view of the spray nozzle;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 for Figure 1 A schematic diagram of the switch structure.

[0022] Figure 5 for Figure 1 An exploded view of the spray nozzle in the off position;

[0023] Figure 6 for Figure 1 An exploded view of the spray nozzle in the open position; Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figures 1-6 The present invention is shown as a preferred embodiment of the spray head, which includes a gun body 1, a connecting rod 2, and a switch 3 that controls whether the connecting rod 2 can be pressed and moved downward.

[0026] like Figures 1-3As shown, the gun body 1 includes a lower gun part 11 and an upper gun part 12 rotatably connected to the lower gun part 11. The end of the upper gun part 12 is provided with a wrench 121 for the user to press. The lower end of the lower gun part 11 is provided with a connecting cap 13 connected to the spray bottle body. The connecting cap 13 is provided with a vertically penetrating connecting hole 131. The connecting rod 2 is L-shaped and includes a vertical part 21 and a horizontal part 22. The vertical part 21 of the connecting rod 2 is movably inserted into the connecting hole 131 on the connecting cap 13. Two opposing and vertically extending positioning strips 211 are provided on the outer side wall of the vertical part 21 of the connecting rod 2. The horizontal part 22 of the connecting rod 2 passes through the upper gun part 12. Pressing the wrench 121 at the end of the upper gun part 12 causes the upper gun part 12 to rotate relative to the lower gun part 11. At the same time, the wrench 121 drives the connecting rod 2 to move downward relative to the connecting cap 13 of the lower gun part 11.

[0027] like Figure 4 As shown, the switch 3 has a tubular structure, sleeved outside the vertical part 21 of the connecting rod 2 and inserted into the gap between the outer wall of the vertical part 21 and the inner wall of the connecting hole 131. The switch 3 includes a large inner diameter section 31 and a small inner diameter section 32 located below the large inner diameter section 31. The small inner diameter section 32 is inserted into the connecting hole 131. An annular rib 321 extending circumferentially is provided on the outer wall of the small inner diameter section 32, and a positioning block 322 extending downward is provided at the lower part of the small inner diameter section 32. Correspondingly, an annular groove 132 extending circumferentially along the hole wall and adapted to the aforementioned annular rib 321 is provided on the hole wall of the connecting hole 131 inside the connecting cover 13. A second stop 133 located below the annular groove 132 is provided on the hole wall of the connecting hole 131, and a positioning groove 134 of a predetermined arc length extending circumferentially along the hole wall is provided on the second stop 133. The annular rib 321 and the annular groove 132 cooperate to fix the switch 3 and the connecting cover 13 relatively in the axial direction, and allow them to rotate relative to each other in the circumferential direction; the positioning block 322 is housed in the positioning groove 134 and rotates circumferentially along the positioning groove 134.

[0028] The inner wall of the large inner diameter section 31 of the switch 3 is provided with a first stop 311 that abuts against the positioning strip 211. The upper edge of the first stop 311 is lower than the upper edge of the inner wall of the switch 3. The first stop 311 has two vertically extending relief grooves 312 for the positioning strip 211 to be inserted. The relief grooves 312 have openings that gradually increase in size from bottom to top. When the switch 3 is rotated so that the positioning strip 211 is facing the relief grooves 312, the connecting rod 2 can move up and down relative to the switch 3. When the positioning strip 211 is deviated from the relief grooves 312, the positioning strip 211 is blocked by the first stop 311, which limits the vertical movement of the connecting rod 2. In addition, the cooperation between the positioning block 322 and the positioning groove 134 limits the angle of rotation of the switch 3 relative to the connecting cover 13. When the switch 3 is rotated, and the positioning block 322 is limited by the left or right end wall of the positioning groove 134, the relief groove 312 is opposite to the positioning strip 211 on the connecting rod 2.

[0029] The outer diameter of the large inner diameter section 31 of switch 3 is larger than the inner diameter of the connecting hole 131. With the above solution, the lower end of the large inner diameter section 31 abuts against the solid part constituting the connecting hole 131. When the positioning strip 211 is deviated from the relief groove 312, it prevents the switch 3 from being accidentally pressed down by the connecting rod 2 and moving downward, further ensuring that the switch 3 and the connecting cover 13 are relatively fixed in the axial direction.

[0030] To facilitate the rotation of switch 3, a handle 33 is provided on the outer wall of switch 3. At the connection with the outer wall of switch 3, a notch 331 with an opening facing downwards is provided on handle 33, and the wall of connection hole 131 is located in the notch 331.

[0031] This embodiment also includes a sprayer that uses the spray head described above.

[0032] The spray head usage process in this embodiment is as follows: Rotate the handle 33 on the switch 3 clockwise. The clearance groove 312 and the positioning block 322 on the switch 3 will rotate accordingly. When the positioning block 322 abuts against the end wall of the first end of the positioning groove 134, the switch 3 will not rotate. At this time, the clearance groove 312 is rotated to be directly below the positioning strip 211. Press the wrench 121, and the positioning strip 211 can pass through the clearance groove 312, causing the connecting rod 2 to move downward, thereby opening the spray head. Figure 6 As shown; rotating the handle 33 on switch 3 counterclockwise, as long as the clearance groove 312 on switch 3 is not directly aligned with the positioning strip 211, the first stop 311 abuts against the positioning strip 211, thereby limiting the upper and lower movement of the connecting rod 2 and closing the spray head. Figure 5 As shown; continue to rotate the handle 33 on the switch 3 counterclockwise. When the positioning block 322 abuts against the end wall of the second end of the positioning groove 134, the switch 3 will not rotate. At this time, the clearance groove 312 will also be rotated to the position directly below the positioning strip 211. Press the wrench 121, and the positioning strip 211 can pass through the clearance groove 312, causing the connecting rod 2 to move downward, thereby opening the spray head.

Claims

1. A spray head with a switch, characterized in that, include: The gun body (1) has a connecting cover (13) at its lower end, and the connecting cover (13) has a connecting hole (131) that runs through the upper and lower parts. The lower end of the connecting rod (2) is movably inserted into the connecting hole (131), and a vertically extending positioning strip (211) is provided on the outer side wall of the connecting rod (2). The switch (3) has a tubular structure and is sleeved outside the connecting rod (2). A first stop (311) is provided on the inner wall of the switch (3) to abut against the positioning strip (211). A clearance groove (312) is provided on the first stop (311) for the positioning strip (211) to be inserted into. Wherein: When the switch (3) is rotated so that the positioning bar (211) is facing the relief groove (312), the connecting rod (2) can move up and down relative to the switch (3); and when the switch (3) is rotated so that the positioning bar (211) is deviated from the relief groove (312), the positioning bar (211) is blocked by the first stop (311) so that the connecting rod (2) is restricted from moving up and down relative to the switch (3).

2. The spray head according to claim 1, characterized in that: The switch (3) is inserted into the gap formed between the outer wall of the connecting rod (2) and the inner wall of the connecting hole (131). The outer wall of the switch (3) is provided with an annular rib (321) extending circumferentially along the outer wall. The wall of the connecting hole (131) is provided with an annular groove (132) extending circumferentially along the wall. The annular rib (321) and the annular groove (132) cooperate with each other.

3. The spray head according to claim 2, characterized in that: The connecting hole (131) has a second stop (133) located below the annular groove (132) on its hole wall, and the second stop (133) has a positioning groove (134) extending a predetermined length along the circumference of the hole wall; The lower part of the switch (3) is provided with a positioning block (322) that extends downward and matches the positioning groove (134); wherein, when the switch (3) is rotated so that the positioning bar (211) is facing the clearance groove (312), the positioning block (322) is rotated to one side of the positioning groove (134).

4. The spray head according to claim 3, characterized in that: The switch (3) includes a large inner diameter section (31) and a small inner diameter section (32). The small inner diameter section (32) is provided with the annular rib (321). The outer diameter of the large inner diameter section (31) is larger than the inner diameter of the connecting hole (131).

5. The spray head according to claim 4, characterized in that: The switch (3) has a handle (33) on its outer side wall that can rotate the switch (3).

6. The spray head according to claim 5, characterized in that: The handle (33) and the outer wall of the switch (3) are provided with a downward-facing notch (331), and the wall of the connecting hole (131) is located inside the notch (331).

7. The spray head according to claim 1, characterized in that: There are two positioning bars (211), and correspondingly, there are two clearance grooves (312).

8. The spray head according to claim 7, characterized in that: The clearance groove (312) has an opening structure whose diameter gradually increases from bottom to top.

9. The spray head according to claim 1, characterized in that: The upper edge of the first stop (311) is lower than the upper edge of the inner wall of the switch (3).

10. A sprayer, characterized in that: The application has the spray head as described in any one of claims 1 to 9.

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