Hand-push type sprayer

Abstract

The utility model relates to the technical field of sprayer devices, and discloses a hand-push type sprayer which comprises a cart frame, a water tank and a pump body, the water tank and the pump body are both arranged on the cart frame and are communicated through a water pipe, the bottom of the water tank is provided with a low-residual-water mechanism used for reducing the residual water amount after water pumping, and the pump body is arranged on the cart frame. The low-residual-water mechanism comprises a water outlet, a sinking groove and a flow guide inclined face, the end, away from the pump body, of the water pipe is arranged in the sinking groove, the water outlet is communicated with the sinking groove, the water tank comprises an inner bottom face, the sinking groove comprises a groove bottom face, the groove bottom face is lower than the inner bottom face, and the flow guide inclined face is formed between the inner bottom face and the groove bottom face. The hand-push type sprayer is provided with the low residual water mechanism, the residual water amount at the bottom of the water tank after water pumping can be reduced, water and pesticide in the water tank are utilized more sufficiently, and the influence of the residual pesticide on the surrounding environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spray devices, in particular to a hand-push sprayer. Background Art

[0002] A sprayer is a commonly used machine in agriculture and forestry. It uses a plunger pump to extract and output a certain pressure of medicine, and then uses a spray gun to turn the pressure of medicine into mist, and then sprays it evenly on the crops to prevent and control pests and diseases. Some existing hand-push sprayers usually install the prime mover, plunger pump, water tank, etc. together on a bracket, and set wheels under the bracket. The outer periphery of the wheel is used to roll against the ground, so as to facilitate the movement of the spray equipment in the garden.

[0003] Some existing hand-push sprayers include a pump body and a water tank. A water pipe is connected between the water tank and the pump body. The pump body pumps water mixed with pesticides in the water tank (the same as the water mentioned below) to the outside through the water pipe. When the water in the water tank is pumped to a state where it can no longer be pumped out, some water will remain at the bottom of the water tank and cannot be pumped out, resulting in low utilization rate of this part of the water. The residual liquid will accidentally leak out later and affect the surrounding environment, resulting in a poor user experience. Utility Model Content

[0004] In order to solve at least one aspect of the above problems, the utility model provides a hand-push sprayer, comprising: a cart frame, a water tank and a pump body, the water tank and the pump body are both arranged on the cart frame, the water tank and the pump body are connected by a water pipe, a low residual water mechanism for reducing the residual water amount after the water is pumped out is arranged at the bottom of the water tank, the low residual water mechanism comprises a water outlet, a sinking groove and a guide slope, one end of the water pipe away from the pump body is placed in the sinking groove, the water outlet is connected with the sinking groove, the water tank comprises an inner bottom surface, the sinking groove comprises a groove bottom surface, the groove bottom surface is lower than the inner bottom surface, and the guide slope is formed between the inner bottom surface and the groove bottom surface; the hand-push sprayer of the utility model is provided with a low residual water mechanism, which can reduce the residual water amount at the bottom of the water tank when the water is pumped out, the water and pesticide in the water tank are more fully utilized, and the influence of residual pesticide on the surrounding environment is reduced.

[0005] Optionally, the guide slope includes a first side edge and a second side edge that are opposite to each other, the first side edge is connected to the inner bottom surface, and the second side edge is connected to the groove bottom surface.

[0006] Optionally, the guide slope further includes a third side and a fourth side opposite to each other, and the third side is higher than the fourth side.

[0007] Optionally, a guide slope is formed between the third side and the inner bottom surface.

[0008] Optionally, the guide slope is triangular and the flow guide slope is rectangular.

[0009] Optionally, a filter plate is provided at the bottom of the water pipe, and a plurality of protrusions are provided in an annular shape at the bottom of the filter plate for abutting against the bottom surface of the groove, and an inlet groove for water intake is formed between two adjacent protrusions.

[0010] Optionally, the water outlet is arranged in a horizontal direction, a channel is arranged between the sinking trough and the water outlet, and an arc-shaped guide portion is arranged at the connecting opening between the channel and the sinking trough.

[0011] Optionally, the sinking trough is connected to a first slow-flow trough and a second slow-flow trough.

[0012] Optionally, the trolley frame includes a bracket and a handle frame, the bracket is provided with a roller at the bottom, the handle frame is provided with a plug-in rod, the plug-in rod is slidably sleeved in the inner side of the plug-in tube, the bracket is provided with a plug-in tube corresponding to the plug-in rod, the plug-in tube is threadedly connected with a hand bolt for locking / unlocking the plug-in rod, and the plug-in tube is provided with a limit pin for limiting the position against the bottom of the plug-in rod.

[0013] Optionally, the roller includes a first roller and a second roller, a mounting rod is provided on the bracket, an arc-shaped avoidance portion is formed on the mounting rod for avoiding the water outlet, the first roller and the second roller are respectively rotatably arranged at both ends of the mounting rod, an arc-shaped bent pipe is formed at the lower part of the plug-in tube, and the mounting rod is fixedly connected to one side of the arc-shaped bent pipe.

[0014] Compared with the prior art, the hand-push sprayer of the utility model is provided with a low residual water mechanism, which can reduce the residual water amount at the bottom of the water tank after the water is pumped out, so that the water and pesticide in the water tank are more fully utilized, and the impact of residual pesticides on the surrounding environment is reduced; the guide slope is rectangular, and two guide slopes are symmetrically arranged, which is convenient for water to be guided to the position between the two guide slopes for gathering, and then guided to the sinking trough; an arc-shaped guide part is arranged at the connecting port of the channel and the sinking trough, which is convenient for water to enter the connecting port of the sinking trough, and the water outlet is smoother; the sinking trough is connected with a first slow flow trough and a second slow flow trough, and two of the first slow flow trough and the second slow flow trough are symmetrically arranged, so as to avoid turbulence caused by too fast flow rate and cause unsmooth water outlet; the limit pin can prevent the plug-in rod from interfering with the arc-shaped curved pipe due to excessive sliding, thereby avoiding the problem that the plug-in rod and the arc-shaped curved pipe are stuck and difficult to disengage; in the horizontal front and rear direction, the center of gravity position of the sprayer is farther away from the position of the first roller and the second roller, so that the cart frame is not easy to tip over. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the hand-push sprayer of the utility model;

[0016] Figure 2 It is a cross-sectional view of the hand-push sprayer of the utility model;

[0017] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0018] Figure 4 This is a structural schematic diagram of the low residual water mechanism of the hand-push sprayer of the utility model;

[0019] Figure 5 for Figure 4 Enlarged view of middle part B;

[0020] Figure 6 This is a structural schematic diagram of the plug-in tube of the hand-push sprayer of the utility model;

[0021] Figure 7 This is a structural schematic diagram of the arc-shaped avoidance portion of the hand-push sprayer of the utility model;

[0022] Figure 8 This is a schematic diagram of the structure inside the water tank of the hand-push sprayer of the utility model;

[0023] Fig. 9 This is a schematic diagram of the structure of the filter plate of the hand-push sprayer of the utility model;

[0024] The corresponding component names of the various reference numerals in the figure are: 1 is a cart frame, 2 is a water tank, 201 is an inner bottom surface, 3 is a pump body, 4 is a water outlet, 5 is a sinking trough, 51 is a first slow flow cavity, 52 is a second slow flow cavity, 501 is a trough bottom surface, 6 is a guide slope, 61 is a first side, 62 is a second side, 63 is a third side, 64 is a fourth side, 7 is a guide slope, 8 is a channel, 801 is Arc-shaped guide part, 9 is a hand-tightened bolt, 11 is a bracket, 111 is a plug-in tube, 112 is an arc-shaped bent pipe, 113 is a horizontal tube, 12 is a push handle frame, 121 is a plug-in rod, 122 is a limit pin, 13 is a first roller, 14 is a second roller, 15 is a mounting rod, 151 is an arc-shaped avoidance part, 16 is a water pipe, 17 is a filter plate, 171 is a raised part, 172 is a water inlet trough, and 18 is a support rod. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the description of the present utility model, it is necessary to understand that the orientation or position relationship indicated by the terms "upper" and "lower" etc. is based on the orientation or position relationship when the product is normally used.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0028] See also Figure 1-Figure 9 The utility model embodiment provides a hand-push sprayer, including: a cart frame 1, a water tank 2 and a pump body 3, the water tank 2 and the pump body 3 are both arranged on the cart frame 1, the water tank 2 and the pump body 3 are connected through a water pipe, a low residual water mechanism for reducing the residual water amount after the water is pumped out is arranged at the bottom of the water tank 2, the low residual water mechanism includes a water outlet 4, a sinking groove 5 and a guide slope 6, an end of the water pipe 16 away from the pump body 3 is placed in the sinking groove 5, the water outlet 4 is connected to the sinking groove 5, the water tank 2 includes an inner bottom surface 201, and the sinking groove 5 includes Groove bottom surface 501, groove bottom surface 501 is lower than inner bottom surface 201, and guide slope 6 is formed between inner bottom surface 201 and groove bottom surface 501; The hand-push sprayer of the utility model is provided with a low residual water mechanism, which can reduce the residual water amount at the bottom of the water tank when the water is pumped out, and the water and pesticide in the water tank are more fully utilized, reducing the impact of residual pesticide on the surrounding environment; when the water in the water tank 2 is about to be pumped out, the water in the water tank 2 flows along the guide slope 6 to the sinking groove 5, and then is discharged through the water pipe 16, so that the residual water amount in the water tank is less.

[0029] See also Figure 3 , Figure 4 , Figure 5 , Figure 8 and Fig. 9The guide slope 6 includes a first side 61 and a second side 62 opposite to each other, the first side 61 is connected to the inner bottom surface 201, and the second side 62 is connected to the groove bottom surface 501; the guide slope 6 also includes a third side 63 and a fourth side 64 opposite to each other, the third side 63 is higher than the fourth side 64, forming a height difference, which is convenient for guiding water to the sinking groove 5 for discharge; a guide slope 7 is formed between the third side 63 and the inner bottom surface 201; the guide slope 7 is triangular, and two guide slopes 7 are symmetrically arranged, which is convenient for guiding water to the third side 63; the guide slope 6 is rectangular, and the guide slope 6 Two of them are symmetrically arranged, so that water can be directed to the position between the two guide slopes 6 for gathering, and then directed to the sink trough 5; a filter plate 17 is arranged at the bottom of the water pipe 16, and the filter plate 17 can filter the water sucked in by the bottom of the water pipe 16. The filter plate 17 is fixed in the water tank by a support rod 18, and the end of the support rod 18 is clamped in the first slow flow cavity and the second slow flow cavity 52 to prevent larger objects from being sucked into the water pipe 16; a plurality of raised portions 171 for abutting against the bottom surface 501 of the groove are arranged in an annular manner at the bottom of the filter plate 17, and an inlet groove for water intake is formed between two adjacent raised portions 171 172. During normal spraying, under the action of the pump body 3, the water in the sinking tank 5 is sucked up to the outside of the water tank through the water pipe 16 for spraying. The water inlet tank 172 is arranged at the position of the sinking tank 5. When the sprayer cannot spray out the liquid (that is, when the water pipe 16 cannot contact the liquid in the water tank), the residual water in the water tank is small and can be used more fully. At this time, a small amount of liquid will remain in the sinking tank 5, which can be discharged through the water outlet 4. The screw cover at the water outlet 4 is opened when the residual water in the water tank is drained after the sprayer is used up and when the water in the water tank is drained, so as to further reduce the residual liquid with pesticide in the water tank. The water inlet 4 is arranged in the horizontal direction, and a channel 8 is arranged between the sinking trough 5 and the water outlet 4. An arc-shaped guide portion 801 is arranged at the connecting port between the channel 8 and the sinking trough 5, so as to facilitate water to enter the connecting port of the sinking trough 5 and make the water outflow smoother; the sinking trough 5 is connected with a first slow flow trough 51 and a second slow flow trough 52, and two of the first slow flow trough 51 and the second slow flow trough 52 are symmetrically arranged. The water flowing into the sinking trough 5 along the guide slope 6 has a certain flow velocity. The first slow flow trough 51 and the second slow flow trough 52 can slow down the flow velocity of the water flowing into the sinking trough 5, so as to avoid turbulence caused by excessive flow velocity resulting in unsmooth water outflow.

[0030] See also Figure 1 , Figure 2 and Figure 6The trolley frame 1 includes a bracket 11 and a handle frame 12. The handle frame 12 is convenient for the user to push. The specific pushing method is that the person holds the handle frame 12 by hand and pushes it forward; a roller is arranged at the bottom of the bracket 11, and a plug-in rod 121 is arranged on the push-in rod 12. A plug-in tube 111 corresponding to the plug-in rod 121 is arranged on the bracket 11, and the plug-in rod 121 is slidably sleeved inside the plug-in tube 111 in the vertical direction; a hand screw bolt 9 for locking / unlocking the plug-in rod 121 is threadedly connected on the plug-in tube 111, and the axis of the hand screw bolt 9 is perpendicular to the axis of the plug-in tube 111, and a threaded hole corresponding to the hand screw bolt 9 is arranged on the plug-in tube 111; when in use, the handle frame 12 is pushed along the vertical direction The sliding adjustment is performed to the desired height, and then the hand-tightening bolt 9 is tightened so that one end of the hand-tightening bolt 9 is against the plug-in rod 121 for locking; the hand-tightening bolt 9 is loosened so that one end of the tightening bolt 9 is separated from the plug-in rod 121 for unlocking. After unlocking, the height of the push handle 12 can be adjusted, which is convenient to use; a limit pin 122 is provided on the plug-in tube 111 for limiting the position against the bottom of the plug-in rod 121, and the limit pin 122 is placed in the plug-in tube 111, and the axis of the limit pin 122 is parallel to the horizontal plane; when the plug-in rod 121 slides down to the lowest height, the bottom of the plug-in rod 121 is against the upper part of the limit pin 122 for limiting the position, so as to prevent the bottom of the plug-in rod 121 from sliding down too much and interfering with the plug-in tube 111.

[0031] See also Figure 1 , Figure 2 and Figure 7 The roller includes a first roller 13 and a second roller 14. The bracket 11 is provided with a mounting rod 15. The first roller 13 and the second roller 14 are rotatably arranged at both ends of the mounting rod 15. An arc-shaped curved tube 112 is formed at the lower part of the plug-in tube 111. The bracket 11 also includes a transverse tube 113. The plug-in tube 111 and the transverse tube 113 are integrally connected through the arc-shaped curved tube 112. The plug-in tube 111 extends in the vertical direction, and the transverse tube 113 extends in the horizontal direction. The limit pin 122 can prevent the plug-in rod 121 from interfering with the arc-shaped curved tube 112 due to excessive sliding, so as to The problem of the plug-in rod 121 and the arc-shaped curved pipe 112 being stuck and difficult to disengage is avoided; the installation rod 15 is fixedly connected to one side of the arc-shaped curved pipe 112, so that the first roller 13 and the second roller 14 can be relatively far back in the installation position, that is, close to the side of the human body, so that the center of gravity of the sprayer in the horizontal front-to-back direction is farther away from the position of the first roller 13 and the second roller 14, so that the cart frame 1 is not easy to tip over; an arc-shaped avoidance portion 151 for avoiding the water outlet 4 is formed on the installation rod 15, so as to avoid the water pipe connected to the water outlet 4 from interfering with the installation rod 15.

[0032] The utility model hand-push sprayer is provided with a low residual water mechanism, which can reduce the residual water volume at the bottom of the water tank after the water is pumped out, so that the water and pesticide in the water tank are more fully utilized, and the influence of the residual pesticide on the surrounding environment is reduced; the guide slope is rectangular, and two guide slopes are symmetrically arranged, which is convenient for guiding water to the position between the two guide slopes for gathering, and then guiding water to the sinking trough; an arc-shaped guide part is arranged at the connecting port of the channel and the sinking trough, which is convenient for water to enter the connecting port of the sinking trough, and the water outlet is smoother; the sinking trough is connected with a first slow flow trough and a second slow flow trough, and two of the first slow flow trough and the second slow flow trough are symmetrically arranged, so as to avoid turbulence caused by too fast flow rate and cause unsmooth water outlet; the limit pin can prevent the plug-in rod from interfering with the arc bent pipe due to excessive sliding, and thus avoid the problem that the plug-in rod and the arc bent pipe are stuck and difficult to disengage; in the horizontal front and rear direction, the center of gravity position of the sprayer is farther away from the position of the first roller and the second roller, so that the cart frame is not easy to tip over.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A hand-push sprayer, characterized in that: include: A cart frame (1), a water tank (2) and a pump body (3), wherein the water tank (2) and the pump body (3) are both arranged on the cart frame (1), the water tank (2) and the pump body (3) are connected via a water pipe (16), a low residual water mechanism for reducing the amount of residual water after pumping out water is arranged at the bottom of the water tank (2), the low residual water mechanism comprising a water outlet (4), a sinking trough (5) and a diversion slope (6), one end of the water pipe (16) away from the pump body (3) is placed in the sinking trough (5), the water outlet (4) is connected to the sinking trough (5), the water tank (2) comprises an inner bottom surface (201), the sinking trough (5) comprises a trough bottom surface (501), the trough bottom surface (501) is lower than the inner bottom surface (201), and the diversion slope (6) is formed between the inner bottom surface (201) and the trough bottom surface (501).

2. The hand-push sprayer according to claim 1, characterized in that: The guide slope (6) comprises a first side edge (61) and a second side edge (62) which are opposite to each other; the first side edge (61) is connected to the inner bottom surface (201), and the second side edge (62) is connected to the groove bottom surface (501).

3. The hand-propelled sprayer according to claim 2, characterized in that: The guide slope (6) further comprises a third side edge (63) and a fourth side edge (64) which are opposite to each other, and the third side edge (63) is higher than the fourth side edge (64).

4. The hand-propelled sprayer according to claim 3, characterized in that: A guide slope (7) is formed between the third side edge (63) and the inner bottom surface (201), and the guide slope (7) is in a triangular shape.

5. The hand-propelled sprayer according to claim 1, characterized in that: A filter plate (17) is provided at the bottom of the water pipe (16), and a plurality of protrusions (171) are provided in an annular shape at the bottom of the filter plate (17) for contacting with the bottom surface (501) of the groove, and a water inlet groove (172) for water inlet is formed between two adjacent protrusions (171).

6. The hand-propelled sprayer according to claim 1, characterized in that: The guide slope (6) is rectangular.

7. The hand-propelled sprayer according to claim 1, characterized in that: The water outlet (4) is arranged in a horizontal direction, a channel (8) is arranged between the sinking trough (5) and the water outlet (4), and an arc-shaped guide portion (801) is arranged at the connecting opening between the channel (8) and the sinking trough (5).

8. The hand-propelled sprayer according to claim 1, characterized in that: The sinking trough (5) is connected to a first slow flow trough (51) and a second slow flow trough (52).

9. The hand-push sprayer according to any one of claims 1 to 8, characterized in that: The trolley frame (1) comprises a bracket (11) and a handle frame (12); a roller is arranged at the bottom of the bracket (11); a plug-in rod (121) is arranged on the handle frame (12); a plug-in tube (111) corresponding to the plug-in rod (121) is arranged on the bracket (11); the plug-in rod (121) is slidably sleeved on the inner side of the plug-in tube (111); a hand-tightening bolt (9) for locking / unlocking the plug-in rod (121) is threadedly connected on the plug-in tube (111); and a limit pin (122) for abutting against the bottom of the plug-in rod (121) for limiting the position is arranged on the plug-in tube (111).

10. The hand-propelled sprayer according to claim 9, characterized in that: The roller comprises a first roller (13) and a second roller (14); a mounting rod (15) is arranged on the bracket (11); an arc-shaped avoidance portion (151) for avoiding the water outlet (4) is formed on the mounting rod (15); the first roller (13) and the second roller (14) are rotatably arranged at two ends of the mounting rod (15), an arc-shaped curved pipe (112) is formed at the lower part of the plug-in pipe (111), and the mounting rod (15) is fixedly connected to one side of the arc-shaped curved pipe (112).

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