TWI759256B - Spray device - Google Patents

Abstract

A spray device includes a container, an air pump, an outer barrel, a nozzle, an outlet pipe and a control assembly. The container defines an accommodating space. The air pump is disposed on the container and inserted into the accommodating space. The outlet pipe is arranged around the air pump. A passage is defined between the air pump and the outer barrel. The upper end of the passage is connected to the accommodating space. The nozzle is disposed on the container and is connected to the outside.

Description

sprinkler

The present invention relates to a spraying device.

Generally speaking, when watering in gardening and spraying varnish in woodworking, a spraying device is used for spraying. The conventional spraying device includes a container and a pumping device. The pumping device is used to pump air into the container to increase the pressure in the container. , the liquid in the container can be sprayed to the outside through a water outlet pipe and a nozzle.

However, when the air pumping device pushes air into the container, the air will flow into the liquid, and the density of the air is lighter than that of the liquid, and finally the air will surface on the surface of the liquid. The liquid produces chemical changes or the pumping effect is reduced, and the user needs to spend more effort to pump, and there are shortcomings that need to be improved urgently.

Therefore, it is necessary to provide a novel and progressive spraying device to solve the above-mentioned problems.

The main purpose of the present invention is to provide a spraying device, which can prevent the gas from flowing into the liquid during the pumping process, so that the liquid can be prevented from chemically changing or the pumping effect is reduced.

In order to achieve the above object, the present invention provides a spraying device, which includes a container, an inflatable cylinder, an outer cylinder, a nozzle, a water outlet pipe and a control assembly. The container encloses an accommodating space. The inflatable cylinder is arranged in the container, extends into the accommodating space and can selectively inflate the accommodating space. The outer cylinder is sleeved on the inflatable cylinder, a channel is formed between the inflatable cylinder and the outer cylinder, and the upper end of the channel is communicated with the accommodating space along the vertical direction. The nozzle is arranged in the container and one end is communicated with the outside. The water outlet pipe is arranged in the container, extends into the accommodating space and communicates with the nozzle. The control assembly is arranged in the container, and can selectively control the communication between the water outlet pipe and the nozzle.

The following examples only illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention, and are described together first.

Please refer to FIGS. 1 to 8 , which show a preferred embodiment of the present invention. The spraying device of the present invention includes a container 1 , an inflatable cylinder 2 , an outer cylinder 3 , a nozzle 4 , a water outlet pipe 5 and a control assembly 6.

The container 1 encloses an accommodating space 11 for containing liquid.

The inflatable cylinder 2 is installed in the container 1 , extends into the accommodating space 11 and can selectively inflate the accommodating space 11 .

The outer cylinder 3 is sleeved on the inflatable cylinder 2 , a channel 31 is formed between the inflatable cylinder 2 and the outer cylinder 3 , and the upper end of the channel 31 is connected to the accommodating space 11 along the vertical direction.

The nozzle 4 is arranged in the container and one end is communicated with the outside world.

The water outlet pipe 5 is arranged in the container 1 , extends into the accommodating space 11 and communicates with the nozzle 4 .

The control assembly 6 is installed in the container 1 and can selectively control the communication between the water outlet pipe 5 and the nozzle 4 .

Thereby, a channel 31 is formed between the inflatable cylinder 2 and the outer cylinder 3, and the upper end of the channel 31 is connected to the accommodating space 11 along the vertical direction. When the inflatable cylinder 2 is inflated toward the accommodating space 11, The gas will flow into the channel 31 through the bottom of the inflatable cylinder 2, and will enter the accommodating space 11 only after flowing to the top through the channel 31. Therefore, the gas will not flow into the liquid, which can prevent the gas from being excessively dissolved in the liquid. The invention can effectively solve the problem that the liquid excessively dissolves the gas to produce chemical changes or reduce the pumping effect, so the user does not need to pump excessively, and it is more convenient to use.

Specifically, the outer cylinder 3 includes a first annular wall 32 and a bottom wall 33 , and the first annular wall 32 is sleeved on the inflatable cylinder 2 . In this embodiment, the radial dimension of the inner wall of the first annular wall 32 is larger than the radial dimension of the outer wall of the inflatable cylinder 2 , so that the channel 31 can be formed smoothly.

Preferably, the inner wall of the first annular wall 32 is provided with at least one groove 34 (in this embodiment, there are plural grooves), and each of the grooves 34 extends at both axial ends of the first annular wall 32, The grooves 34 ensure the formation of the channel 31 .

It is worth mentioning that the outer wall of the inflatable cylinder 2 is radially protruded with a plurality of protruding ribs 21 arranged at intervals along the circumferential direction. The top of the first annular wall 32 abuts against the protruding ribs 21. The ribs 21 are arranged at intervals in the circumferential direction to ensure that the top end of the first annular wall 32 communicates with the accommodating space 11 .

Further, the container 1 includes a body portion 12 and a head portion 13, the head portion 13 is sealingly assembled with the body portion 12, the body portion 12 defines the accommodating space 11, the inflatable cylinder 2, the The nozzle 4 , the water outlet pipe 5 and the control assembly 6 are assembled to the head 13 , and the liquid filling step can be performed by disassembling the head 13 and the body 12 .

The control assembly 6 includes a sliding member 61, a first elastic member 62 and a pressing handle 63. The sliding member 61 is disposed on the head 13 and can slide in a first position and a second position. An elastic piece 62 springs between the sliding piece 61 and the head 13 to push the sliding piece 61 toward the first position and the sliding piece 61 closes one end of the nozzle 4 (as shown in FIG. 5 ) ), the pressing handle 63 is swingably disposed on the head 13 , by pressing the pressing handle 63 to move the sliding member 61 toward the second position (as shown in FIG. 6 ), the sliding member 61 is not closed Hold one end of the nozzle 4, so when the pressure handle 63 is not pressed normally, the liquid in the container 1 cannot be sprayed to the outside from the nozzle 4, and the pressure handle 63 needs to be pressed, the liquid in the container 1 can be released from the The nozzle 4 is sprayed to the outside.

In addition, the head portion 13 includes a connecting portion 14 and a cover portion 15 , the connecting portion 14 is assembled with the body portion 12 , the cover portion 15 covers the connecting portion 14 , and the cover portion 15 is provided with a The first through hole 151 and the hole edge of the first through hole 151 are protruded with a second annular wall 152 , the inflatable cylinder 2 is inserted through the first through hole 151 , the sliding member 61 includes a ring 64 and a first valve member 65 and an abutting top 66, the collar 64 is connected between the first valve member 65 and the abutting top 66, the collar 64 is slidably sleeved on the second ring wall 152 to save the assembly part The space within 14 can also limit the sliding of the collar 64, the first valve member 65 can selectively close one end of the nozzle 4, when the pressing handle 63 is pressed, the pressing handle 63 abuts against the top 66 to move the slider 61 toward the second position.

Preferably, the present invention further includes a pressure relief valve 7 (as shown in FIGS. 7 and 8 ). The pressure relief valve 7 includes a second valve member 71 and a second elastic member 72 , and the head 13 is provided with a The third annular wall 16 , the third annular wall 16 forms a stepped portion 161 , the second valve member 71 is slidably mounted on the third annular wall 16 , and the second elastic member 72 springs against the head 13 Between the second valve member 71 and the second valve member 71, the second valve member 71 is normally sealed against the stepped portion 161. When the head portion 13 and the body portion 12 are to be disassembled, the pressure relief can be controlled. The valve 7 makes the second valve member 71 not abut against the stepped portion 161 (in this embodiment, the second valve member 71 is pulled), so that the pressure can be released.

In this embodiment, the inflatable cylinder 2 includes a cylinder body 22 and a piston member 23 , the cylinder body 22 is screwed on the second ring wall 152 , the outer cylinder 3 is sleeved on the cylinder body 22 , and the piston member 23 The accommodating space 11 can be inflated by the user by reciprocatingly moving the piston member 23 by slidably passing through the first hole 151 and extending into the cylinder body 22 .

Specifically, a handle 141 extends from the connecting portion 14 , and a receiving groove 142 is recessed in the handle 141 . A portion of the pressing handle 63 is limited between the cover portion 15 and the connecting portion 14 and abuts against it. The other part of the abutting top 66 is swingably accommodated in the accommodating groove 142 . Using this, the pressing handle 63 can be used to press the part of the pressing handle 63 that is accommodated in the accommodating groove 142 , so that the pressing handle 63 can hold the bearing. The top 66 abuts towards this second position.

1: container 11: Accommodating space 12: Body 13: Head 14: Assembly Department 141: Grip 142: accommodating slot 15: Cover 151: First Perforation 152: Second Ring Wall 16: The third ring wall 161: Steps 2: Inflator 21: Ribs 22: Cylinder 23: Piston parts 3: outer cylinder 31: Channel 32: The first ring wall 33: Bottom wall 34: Groove 4: Nozzle 5: outlet pipe 6: Control Components 61: Slider 62: The first elastic piece 63: Press handle 64: Collar 65: The first valve 66: to the top 7: Pressure relief valve 71: Second valve piece 72: Second elastic piece

FIG. 1 is a perspective view of a preferred embodiment of the present invention. FIG. 2 is an exploded view of a preferred embodiment of the present invention. 3 is a cross-sectional view of a preferred embodiment of the present invention. FIG. 4 is a partial enlarged view of FIG. 3 . FIG. 5 is another partial enlarged view of FIG. 3 . FIG. 6 is a schematic diagram of the operation of FIG. 5 . FIG. 7 is a partial schematic diagram of a preferred embodiment of the present invention. FIG. 8 is a schematic diagram of the operation of a preferred embodiment of the present invention.

1: container

12: Body

13: Head

2: Inflator

23: Piston parts

4: Nozzle

6: Control Components

63: Press handle

7: Pressure relief valve

Claims (10)

A spray device comprising: a container, enclosing an accommodating space; an inflatable cylinder, installed in the container, extending into the accommodating space and selectively inflating the accommodating space; an outer cylinder sleeved on the inflatable cylinder, a channel is formed between the inflatable cylinder and the outer cylinder, and the upper end of the channel is connected to the accommodating space along the vertical direction; a nozzle, which is arranged in the container and communicates with the outside world at one end; a water outlet pipe, installed in the container, extending into the accommodating space and communicating with the nozzle; A control assembly, disposed in the container, can selectively control the communication between the water outlet pipe and the nozzle. The spraying device of claim 1, wherein the outer cylinder comprises a first annular wall and a bottom wall, and the first annular wall is sleeved on the inflatable cylinder. The spray device of claim 2, wherein the radial dimension of the inner wall of the first annular wall is greater than the radial dimension of the outer wall of the inflatable cylinder. The spraying device according to claim 2, wherein the inner wall of the first annular wall is provided with at least one groove, and each of the grooves extends at both axial ends of the first annular wall. The spraying device as claimed in claim 2, wherein a plurality of protruding ribs are radially protruded from the outer wall of the inflatable cylinder and arranged at intervals in the circumferential direction, and the top end of the first annular wall abuts against the protruding ribs. The spray device according to any one of claims 1 to 5, wherein the container comprises a body and a head, the head is sealingly assembled with the body, and the body encloses the accommodating space, The air cylinder, the nozzle, the water outlet pipe and the control component are assembled on the head. The spraying device as claimed in claim 6, wherein the control assembly comprises a sliding member, a first elastic member and a pressing handle, the sliding member is disposed on the head and can slide in a first position and a second position , the first elastic piece springs against the sliding piece and the head to push the sliding piece towards the first position and the sliding piece closes one end of the nozzle. The head moves the sliding member toward the second position by pressing the pressing handle, and the sliding member does not close one end of the nozzle. The sprinkler device as claimed in claim 7, wherein the head comprises a set part and a cover part, the set part is assembled on the body part, the cover part is covered on the set part, and the cover part is set on the body part. There is a first through hole, a second ring wall is protruded from the hole edge of the first through hole, the inflatable cylinder is penetrated through the first through hole, the sliding member includes a ring, a first valve member and a top, the The collar is connected between the first valve member and the abutment top, the collar is slidably sleeved on the second ring wall, the first valve member can selectively close one end of the nozzle, and when the nozzle is pressed When pressing the handle, the pressing handle presses against the top. The spraying device according to claim 1, further comprising a pressure relief valve, the pressure relief valve comprising a second valve member and a second elastic member, the head is provided with a third annular wall, the third annular wall A stepped portion is formed, the second valve member is slidably mounted on the third ring wall, and the second elastic member springs against the head portion and the second valve member, so as to normally the second valve member The piece is sealed against the step. The spraying device according to claim 3, wherein the inner wall of the first annular wall is provided with at least one groove, and each of the grooves extends at both axial ends of the first annular wall; the outer wall of the inflatable cylinder radially A plurality of protruding ribs arranged at intervals along the circumferential direction are protrudingly arranged, and the top end of the first annular wall abuts against the protruding ribs; the container includes a body and a head, the head is sealingly assembled with the body, The body encloses the accommodating space, the inflatable cylinder, the nozzle, the water outlet pipe and the control assembly are assembled to the head; the control assembly includes a sliding part, a first elastic part and a pressing handle, The sliding member is arranged on the head and can slide in a first position and a second position. The first elastic member springs between the sliding member and the head to move the sliding member toward the first position. Abutting and closing one end of the nozzle, the pressure handle is swingably arranged on the head, and by pressing the pressure handle to move the slider toward the second position, the slider is not closed One end of the nozzle; the head includes a set of connecting parts and a cover part, the connecting part is assembled with the body part, the cover part is covered on the connecting part, the cover part is provided with a first perforation, the A second ring wall is protruded from the hole edge of the first through hole, the inflatable cylinder is penetrated through the first through hole, the sliding member includes a collar, a first valve member and a top, and the collar is connected to the first through hole. Between a valve member and the abutting top, the collar is slidably sleeved on the second ring wall, and the first valve member can selectively close one end of the nozzle. When the pressing handle is pressed, the pressing handle abutting the top; further includes a pressure relief valve, the pressure relief valve includes a second valve member and a second elastic member, the head is provided with a third ring wall, and the third ring wall forms a step portion , the second valve member is slidably mounted on the third ring wall, and the second elastic member springs between the head and the second valve member to normally move the second valve member toward the step The inflatable cylinder includes a cylinder body and a piston member, the cylinder body is screwed on the second ring wall, the outer cylinder is sleeved on the cylinder body, and the piston member slidably passes through the first ring wall. A perforated hole extends into the barrel; a handle extends from the assembly portion, the handle is recessed with an accommodating groove, and a portion of the pressing handle is limited between the cover portion and the assembly portion and abuts against the assembly portion. The other part is swingably accommodated in the accommodating groove against the top.

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