TWI731709B - Control device of water spray gun - Google Patents

Abstract

A water spray gun includes a main body, an operating member and a switch part. The main body includes a handle portion and a tube portion extended from the handle portion and provided with a spray head. A control assembly is enclosed in the main body for control of water outflow and adjustment of the amount of the water outflow. The operating member is pivotally connected to the position where the handle portion meets the tube portion. The switch part is arranged at the operating member and is engaged with the control assembly. The amount of water outflow is controlled by relative movement between the switch part and the operating member.

Description

Control device of spray gun

The present invention relates to a control device for a spray gun, in particular to a segmented locker that utilizes a pressing operating member and a safety switch member to easily switch between a locked state and an unlocked state and control the amount of water.

Sprinkler equipment is known to disclose patent number: US7434750 liquid spray gun, including a body and an operating member, the body can be held by an operator along the handle portion of the housing, the graspable part can be defined as the housing A handle, the handle can be arranged between the water inlet of the body and the water outlet, one end of the operating member is pivotally connected to the water inlet close to the body, the operating member is provided with a button for locking the operating member in the dispensing position; and, A passage is provided at the water inlet portion of the housing extending to the junction of the water outlet, and a valve is slidably accommodated in the passage. The valve is biased by a spring and can be operated by activation. In the closed position and the maximum opening of the valve A joystick that can rotate between positions, the device can be locked by a button when the manipulator is in the maximum open position and the minimum position is locked.

And, the patent number: EP3116657B1, including a body and an operating member, the body can be held by an operator along the handle portion of the body, the grippable portion can be defined as the handle portion of the body, the handle portion can be Set between the water outlet and the water inlet of the main body, one end of the operating member is pivotally connected to the water inlet close to the main body; and, the operating member is close to the water outlet and the water inlet There is a locking component between the transfer parts, which allows the user to lock the operating element in a desired position. The simple compression of the operating element enables the blocking function of the operable element to be easily locked or locked. Untie.

The operating parts of the above two prior patents both have one end pivotally connected to the water inlet part close to the main body; and, the operating part close to the water outlet part and the water inlet part are provided with a locking member assembly between the junctions, but the locking member The component provides the stopping function of the operating element, which can be easily locked or unlocked, and can only provide a single function to open or close the water flow of the channel.

Therefore, the present invention provides an improved lock structure. The main purpose of the embodiment is to provide a single-handed control of the operating element, and also to lock the operable element in a desired position, and also provide a controllable water volume. The segmented locking function is close and the operating element designed in the present invention is a multi-function that conforms to the ergonomic control and is more labor-saving.

The present invention provides a spray gun, which may include a body and an operating member, and an operator holds the operating member along a handle of the body while pressing the operating member; and the body is covered with a flow channel, and the flow tool There is a water outlet part extending from the water inlet part, and a control assembly is arranged at the junction of the water inlet part and the water outlet part, and the control assembly controls the flow of water so that the spray gun can perform the function of controlling the spraying water; and the operating member has a first end And the extended second end, the second end is pivotally connected to the body outside the junction of the water inlet and the outlet; and the operating member is located at the second end close to the pivot and is provided with a safety switch, the safety switch The operating member is configured to contact a positioning portion of the control assembly for engagement, and the locked position and the unlocked position are defined by the relative movement of the safety switch member to contact or leave the positioning portion; the compression of the operating member follows the safety switch member in the The locked position allows the operating member to alternately switch to a locked state and an unlocked state with each compression And, when the safety switch is in the unlocked position, regardless of the compression of the operable, the operable can be maintained in the unlocked state, and when the safety switch is in the locked position, the insurance The switch element contacts the positioning part, and the safety switch element controls the control assembly to alternately provide the closing and opening of the water flow and the segmented control locking of the water volume.

1: body

12: Pipe Department

3: Operating parts

11: handle

11a: Water inlet

11b: connection end

121: spray head

1a: Water inlet

2a: Water outlet

14: Chamber

15: Channel

16: Stem

17: Spring

5: Positioning department

161: front end

162: End

163: Expansion Department

5a: first surface

5b: second surface

4: Safety switch

51: first tooth

52: second tooth

53: third tooth

31: first end

32: second end

34: abutment

33: Slot

4a: Pressing part

45: fulcrum

45a: Centerline

41: upper end

42: bottom

43: lock part

44: Hook

6: index finger

7: fingers

In the context of the following general terms describing the present invention, the reference drawings will now be used as multiple accompanying drawings, which need not be drawn to scale, in which:

The first figure is an exploded view of the safety switch part and the body of the present invention.

Figure 2 The combination diagram of the safety switch part and the main body of the present invention.

Figure 3 is a perspective view of the safety switch of the present invention.

The fourth figure is another perspective view of the third figure.

Figure 5 Side view of the present invention.

Figure 6: A partially enlarged cross-sectional view of the present invention.

Seventh Figure The present invention is ready to operate the water flow embodiment.

The eighth figure is the first locking embodiment of the operation of the present invention to open the water flow.

Figure Ninth The present invention operates to open the second stage of the locking embodiment of the water flow.

Figure 10: This invention operates to open the third stage of the locking embodiment of the water flow.

Figure eleventh embodiment of the present invention operating to unlock and prepare to close the water flow.

Figure 12 The embodiment of the present invention to close the water flow.

Figure 13: Another embodiment of the safety switch and positioning part of the present invention.

The fourteenth picture shows the closed water flow embodiment of the thirteenth picture.

Hereinafter, some exemplary embodiments of the operation will be described in more detail with reference to the drawings. These exemplary embodiments are provided so that the present invention will meet the enforceable legal norms. The operational joints used herein should be It is understood that it is related to direct or indirect connection. In any case, the direct or indirect connection can connect multiple functional elements to each other and make multiple functional elements operatively coupled to each other.

Some exemplary embodiments described herein provide an improved design of a spray gun.

Please refer to the first to sixth figures to illustrate the structural combination and related features of the present invention. The control device of the spray gun may include a main body 1, an operating member 3, and the main body 1 includes a handle 11 that can be followed by an operator A part of the body 1 is held; and, the handle 11 has a water inlet 11a; and, the handle 11 extends to form a pipe portion 12, and the pipe portion 12 is assembled with a spray head 121; and, the pipe portion 12 and The connection point of the handle 11 is a connecting end 11b; and, the body 1 is covered with a flow passage, and the flow passage includes a water inlet 1a on the handle 11 and a water outlet 2a extending to the sprinkler head 121, The water inlet 11a is the water inlet of the water inlet 1a, which can be assembled with a water pipe joint to provide a water source to enter the water inlet 1a; and, the water outlet 2a is connected to the sprinkler head 121 to provide water to pass through the sprinkler head 121 for water discharge; And, the spray head 121 can be provided with a variety of different types of spray nozzles, and one of the multiple spray nozzles can be selected to discharge water; and, a cavity 14 is provided at the junction of the water inlet portion 1a and the water outlet portion 2a. The chamber 14 is provided with a channel 15 leading to the water outlet 2a, and the channel 15 provides a series water channel for water flow from the water inlet 1a to the water outlet 2a. A control assembly is provided at the position of the chamber 14; and, the control assembly is Configured so that the spray gun control device can implement a function of controlling the opening and closing of the water flow and the amount of water. This control function is similar to that of the spray gun control device. The water flow from the water inlet 1a to the water outlet 2a is related.

In this embodiment, as shown in Figure 6, the control assembly may include a valve stem 16 and a spring 17 and a positioning portion 5; and, the valve stem 16 has a front end 161 and an end 162, and the front end of the valve stem 16 161 is sleeved in the accommodating groove of the handle 11 extending to the outside, and its front end 161 protrudes out of the accommodating groove, and an enlarged portion 163 is provided near the end 162, and the end 162 is inserted into the cavity 14 , The enlarged portion 163 passes through the passage 15 and can correspond to the port of the passage 15; and, the spring 17 is disposed in the chamber 14, and the end 162 of the valve stem 16 abuts against the spring 17, and the valve stem 16 As a result of the push of the spring 17, the channel 15 can be moved back and forth.

And, the positioning portion 5 is arranged at a position close to the connecting end 11b of the handle 11, the positioning portion 5 has a first surface 5a and a second surface 5b, and the positioning portion 5 corresponds to the position of the safety switch 4 , Wherein the first surface 5a of the positioning portion 5 is provided with more than one tooth portion arranged in sequence, which may be a plurality of tooth portions arranged in sequence, and in this embodiment, the number of more than one tooth portions is the first A tooth portion 51, a second tooth portion 52, and a third tooth portion 53; and, the operating member 3 acts as an operating water flow control unit, the operating member 3 has a first end 31 and an extended second end 32, the second The pivot point of the end 32 is at the connecting end 11b of the handle 11 so as to be operable to be compressed and expanded using the second end 32 as a pivot; and, at the second end 32 relative to the connecting end 11b of the handle 11 An abutting portion 34 is provided in the direction of the position, and the abutting portion 34 can correspond to the front end 161 of the valve stem 16;

And, a slot 33 is provided near the second end 32 of the operating member 3, and the slot 33 is assembled with a safety switch member 4, and the safety switch member 4 acts as an operating water flow opening or closing and a water volume segmented locking unit, such as As shown in the third and fourth figures, the safety switch member 4 is provided with a pressing portion 4a. The pressing portion 4a extends to form a shaft portion 45 which is pivotally connected to both sides of the groove 33 of the operating member 3 And, the pressing portion 4a is divided into an upper end 41 and a lower end 42 with the pivot portion 45 as the center line 45a; And, a lock portion 43 is formed by the extension of the support shaft 45, the lock portion 43 is elongated and elastic, and a hook portion 44 is formed at the end downward; and the hook portion 44 can be correspondingly engaged with the positioning A selected tooth part of the part 5, the hook part 44 of the safety switch member 4 correspondingly engages with the selected tooth part of the positioning part 5 or leaves the tooth part by pressing the upper end 41 of the pressing part 4a with a finger by the operator Or the lower end 42, wherein the movable line of the pressing portion 4a is downward inward or upward inward, basically the upper end 41 and the lower end 42 extending from both ends with the pivot portion 45 as the central axis are similar The movable type of the seesaw.

Therefore, in the embodiment shown in Figures 5 and 6, the second end 32 of the operating member 3 is pivotally connected to the connecting end 11b of the handle 11. When the operating member 3 is pivoted to the compressed position, the operating member 3 is pivoted to the compressed position. The abutting portion 34 of 3 can correspondingly contact the front end 161 of the valve stem 16 and then push the valve stem 16 to move. By moving the position of the valve stem 16 to stop the water flow or open the water flow or control the flow in segments to lock.

Continue, please refer to the seventh to the twelfth diagram, for the operation of opening or closing the water flow and the water volume control lock operation.

The seventh figure shows the opening of the water flow to prepare for the locking action. The operator uses the index finger 6 to naturally press the safety switch 4 at the upper end 41 position.

Continuing, the eighth figure shows the implementation of the first stage of water volume lock. The operator naturally uses the index finger 6 to press the safety switch 4 at the position of the upper end 41 (the position shown by the arrow on the figure), and the lock 43 is now downward Pressing against the positioning portion 5, the synchronized finger 7 presses the operating member 3 to compress the handle 11, and at the same time, the abutting portion 34 correspondingly contacts the front end 161 of the valve stem 16 and is guided to move inward. At this time, the enlarged portion of the valve stem 16 163 slightly leaves the rim of the channel 15, the outlet of the chamber 14 leading to the water outlet 2a is slightly opened, so the water from the water inlet 1a is directed to the water outlet 2a and finally the water is discharged by the spray head 121 until the The sliding of the lock portion 43 allows the hook portion 44 to be correspondingly locked and engaged with the first tooth portion 51. When the operating member 3 is locked, the first section of the slight water output is locked.

Continuing, the ninth figure shows the implementation of the second stage of water volume lock. The operator naturally uses the index finger 6 to press the safety switch 4 at the position of the upper end 41 (the position shown by the arrow on the figure), and the lock 43 is now downward Pressing against the positioning portion 5, the synchronized finger 7 presses the operating member to compress the handle 11, and at the same time, the abutting portion 34 correspondingly contacts the front end 161 of the valve stem 16 and is guided to move inward. At this time, the enlarged portion 163 of the valve stem 16 Slightly away from the edge of the channel 15, the outlet of the chamber 14 leading to the water outlet 2a is slightly opened, so the water from the water inlet 1a is directed to the water outlet 2a and finally the water is discharged by the sprinkler 121 until the lock 43 The sliding movement allows the hook portion 44 to be correspondingly locked to the second tooth portion 52 to engage, and the operating member 3 is locked to form a second section of slightly larger water output that is locked.

In addition, the tooth portion is at least one tooth portion, and the hook portion 44 is at least one tooth portion.

Continuing, the tenth figure shows the implementation of the third stage of water volume lock. The operator naturally uses the index finger 6 to press the safety switch 4 at the position of the upper end 41 (the position shown by the arrow on the figure), and the lock 43 is now downward Pressing against the positioning portion 5, the synchronized finger 7 presses the operating member to compress the handle 11, and at the same time, the abutting portion 34 correspondingly contacts the front end 161 of the valve stem 16 and is guided to move inward. At this time, the enlarged portion 163 of the valve stem 16 Slightly away from the edge of the passage 15, the chamber 14 to the outlet 2a is opened to the maximum, so the water from the water inlet 1a is directed to the outlet 2a and finally the water is discharged by the sprinkler 121 until the lock 43 slides. When the hook 44 is correspondingly locked and engaged with the third tooth 53 and the operating member 3 is locked, the maximum water output of the third section is locked.

Continuing, the eleventh figure is the implementation of the locking operation to prepare to shut off the water and the twelfth figure is the state of shutting off the water flow. The operator's finger 6 presses the lower end 42 of the safety switch 4, and the lock 43 is moved upward and away from the positioning portion 5. At this time, at the same time, the abutting portion 34 corresponds to the outside, and the end 162 of the valve stem 16 is bounced When the spring 17 is pushed against, the valve stem 16 is moved outwards. At this time, the enlarged portion 163 of the valve stem 16 closes the lip of the passage 15, and the outlet of the chamber 14 to the water outlet 2a is closed. Therefore, the outlet of the water inlet 1a is closed. The flow of water to the water outlet 2a is stopped.

In the above implementation, the end of the lock portion 43 of the safety switch 4 forms a downward hook 44 and the first surface 5a of the positioning portion 5 is provided with more than one tooth portion, which may also have another structure mode Embodiments, as shown in Figures 13 and 14, in this implementation, the end of the lock portion 43 of the safety switch 4 forms a hook portion 44 upward, and the positioning portion 5 has a first surface 5a and a second surface 5a. On the surface 5b, the second surface 5b is provided with more than one tooth portion arranged in sequence, and the more than one tooth portion can provide the hook portion 44 engagement corresponding, and the positioning portion 5 is arranged in the safety switch 4 On the top of the lock 43, the one or more tooth parts can be the first tooth part 51 and the second tooth part 52; continue, please refer to Figure 13 which is the open water flow state of this embodiment to divide the water volume Locking is a demonstration case of implementation. When the operator naturally uses the index finger 6 to press the safety switch 4 at the lower end 42 position (the position shown by the arrow on the figure), the hook 44 of the lock 43 is pushed up against The second tooth 52 of the positioning portion 5, the synchronized finger 7 presses the operating member 3 to compress the handle 11, and at the same time, the abutment portion 34 correspondingly contacts the front end 161 of the valve stem 16 and is guided to move inward. At this time, the valve stem 16 The enlarged part 163 slightly leaves the edge of the channel 15, the outlet of the chamber 14 leading to the water outlet 2a is opened to the maximum, so the water from the water inlet 1a is directed to the water outlet 2a and finally the water is discharged by the sprinkler 121 until this The sliding of the lock portion 43 allows the hook portion 44 to be engaged with the second tooth portion 52 correspondingly, and the operating member 3 is locked to form the maximum water output to be locked; in addition, if the operation control allows the hook portion of the lock portion 43 to be locked as described above When 44 is pressed upward against the first tooth portion 51 of the positioning portion 5, the minimum water output is locked.

Continuing, the fourteenth figure shows the operation of shutting off the water. The operator presses the upper end 41 of the safety switch 4 with the index finger 6 to make it upward and inward. At this time, the lock 43 is moved downward and the hook 44 leaves The teeth of the positioning portion 5 and the valve stem 16 lose the locking pressing force at the same time, and the end 162 of the valve stem 16 is pushed against by the spring 17, and the valve stem 16 is moved outward while correspondingly pushing toward the abutment portion 34 to make the operating member 3 Expand outwards. At this time, the enlarged portion 163 of the valve stem 16 closes the mouth of the passage 15, and the outlet of the chamber 14 to the water outlet 2a is closed, so the water from the water inlet 1a is stopped to flow to the water outlet 2a.

In summary, the structure of the present invention achieves multiple functions of controlling the opening and closing of the water flow and the size of the water volume. Therefore, the present invention will not be limited by the disclosed specific embodiments, and modifications and other embodiments are intended to be included in It is understood that the scope of the additional patent application is defined.

In addition, although the foregoing description and related drawings describe the embodiments in the context of a combination of elements and/or functions, different combinations of elements and/or functions should be realized as alternative embodiments can be used. Provided without departing from the scope defined by the scope of the additional patent application, at this point, for example, the combination of different elements and/or functions is also carefully considered as compared with those described in detail in the previous embodiments It may be proposed in the scope of some additional patent applications. In some cases where the benefits, advantages, or solutions to problems are described herein, these benefits, advantages and/or solutions should be realized as applicable to certain examples Exemplary embodiments, but not necessarily applicable to all exemplary embodiments. Therefore, any benefits, advantages, or solutions described herein should not be considered for all embodiments or those required herein. The embodiments are indispensable, necessary, or necessary. Although specific nouns are used here, these nouns are only used in a general and descriptive sense, and their purpose is not to limit the present invention.

1: body

12: Pipe Department

3: Operating parts

11: handle

11a: Water inlet

11b: connection end

121: spray head

4: Safety switch

31: first end

32: second end

33: Slot

4a: Pressing part

45: fulcrum

41: upper end

42: bottom

43: lock part

44: Hook

Claims (16)

A control device for a spray gun. The spray gun control device includes a body including a tube and a handle formed by extending the tube; and, an operating member, which is pivoted on the handle, and the operator moves along Hold a handle of the main body while pressing the operating member; and, the pipe is assembled with a sprinkler head, the main body is covered with a flow channel, and the flow channel has a water outlet extending from the water inlet, and is located between the water inlet and the water outlet. A control assembly is provided at the junction of the water outlet, and the control assembly is used to adjust the flow of water in the flow channel or open and close the flow. The control assembly includes a valve stem, a spring, and a positioning part. The positioning part is arranged on the handle. Near the position of the tube portion, a surface of the positioning portion is provided with more than one tooth portion arranged in sequence; and, one end of the operating member is pivoted at the connecting end position of the handle so that it can be operated with the end as a support The shaft is compressed and expanded; and a safety switch member that can be moved is provided near the pivot of the operating member, and the safety switch member is configured to contact the positioning portion of the control assembly to engage, and the positioning portion corresponds to At the position of the safety switch piece; and, the safety switch piece is provided with a pressing portion, the pressing portion extends to form a shaft portion, and the supporting shaft portion is pivotally connected in the groove of the operating member; and, the pressing portion is provided with a supporting shaft The center line is divided into an upper end and a lower end; and, a lock portion is formed by extending the fulcrum, and the end of the lock portion forms a hook portion; and, the hook portion is available for engaging with a selected tooth corresponding to the positioning portion Part, the hook part of the safety switch member correspondingly engages with the selected tooth part of the positioning part or leaves the tooth part. The operator presses the upper or lower end of the pressing part with fingers, wherein the movable line of the pressing part It is downward inward or upward inward, basically the upper end and lower end extending from both ends with the pivot part as the central axis are in a movable form similar to a seesaw. The safety switch acts as an operating water flow. Open or close and lock the unit in segments. The spray gun control device as described in item 1 of the scope of patent application, the positioning The part has a first surface and a second surface, and the one or more tooth parts are arranged on the first surface of the positioning part. As for the spray gun control device described in item 2 of the scope of patent application, the one or more tooth parts can be arranged on the second surface of the positioning part. For the spray gun control device described in item 1 of the scope of patent application, the hook is downward. For the spray gun control device described in item 1 of the scope of patent application, the hook is upward. A control device for a spray gun includes a body and an operating member, the body includes a pipe and a handle formed by extending the pipe; and a control assembly is covered at the connecting end of the pipe and the handle, the The control assembly is configured to enable the spray gun control device to perform related to the flow of water through the spray gun control device; and, the control assembly includes a positioning portion provided at a position where the handle is close to the tube portion, the A surface of the positioning portion is provided with more than one tooth portion arranged; and, the operating member is pivoted on the handle, the operating member has a first end and an extended second end, and the second end of the operating member pivots At the position of the connecting end of the handle, the operating member can be operated to be compressed and expanded with the pivot point as the fulcrum; it is characterized in that a movable safety is provided near the second end of the operating member A switch member, wherein the safety switch member includes a pressing portion, the pressing portion extends to form a shaft portion, and the supporting shaft portion is pivotally connected to the groove of the operating member; and the pressing portion is divided into a center line of the supporting shaft portion The upper end and the lower end; and, a lock portion is formed by the extension of the pivot, the lock portion is elongated and elastic, and the end of the lock portion forms a hook portion, wherein the hook portion corresponds to the positioning portion; wherein the pressing portion can be The moved line is either downward inward or upward inward, basically it is supported The upper end and the lower end extending from both ends of the shaft as the central shaft are in a movable form similar to a seesaw, whereby the safety switch acts as a unit for turning on or off the water flow and locking the water volume in segments. For the spray gun control device described in item 6 of the scope of patent application, the positioning part is arranged at a position close to the connecting end of the handle, the positioning part has a first surface and a second surface, and the one or more teeth The part system is arranged on the first surface of the positioning part. As for the spray gun control device described in item 6 of the scope of patent application, the one or more teeth may be provided on the second surface of the positioning portion. For the spray gun control device described in item 6 of the scope of patent application, the hook is downward. For the spray gun control device described in item 6 of the scope of patent application, the hook is upward. A control device for a spray gun includes a main body and an operating member. The main body includes a pipe and a handle formed by extending the pipe; and the connecting end of the pipe and the handle is covered with a control assembly. The component is configured so that the spray gun control device can be executed in relation to the water flow through the spray gun control device; the feature is that the control component includes a positioning portion, the positioning portion is provided at a position where the handle is close to the tube portion, A surface of the positioning portion is provided with more than one tooth portion arranged; and, the pivot point of the operating member is at the connecting end of the handle so as to be operable to be compressed and expanded with the pivot point as the fulcrum; and, located The operating member is provided with a movable safety switch member near the pivot point of the shaft, wherein the safety switch member includes a pressing portion extending to form a shaft portion, and the supporting shaft portion is pivotally connected to the operating member In the groove; and, a lock portion is formed by the extension of the fulcrum, the lock portion is elongated and elastic, and its end forms a hook portion, wherein the hook portion corresponds to the positioning portion; Wherein, the pressing part takes the fulcrum part as the central axis and the movable line is operated downward inward or upward inward, which is similar to the movable operation type of a seesaw; wherein, the hook part can be For correspondingly engaged with a selected tooth of the positioning portion, the hook portion of the safety switch member correspondingly engages with the selected tooth of the positioning portion or leaves the tooth, thereby causing the safety switch to act as an operating water flow opening or Shut down and lock the unit in segments. For the spray gun control device described in item 11 of the scope of patent application, the positioning portion is arranged at a position close to the connecting end of the handle, the positioning portion has a first surface and a second surface, and the one or more teeth The part system is arranged on the first surface of the positioning part. For the spray gun control device described in item 11 of the scope of patent application, the one or more teeth may be provided on the second surface of the positioning portion. For the spray gun control device described in item 11 of the scope of patent application, the hook is downward. For the spray gun control device described in item 11 of the scope of patent application, the hook is upward. For the spray gun control device described in item 11 of the scope of patent application, the tooth part is at least one tooth part and the hook part is at least one.

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