Electric tool

Abstract

The electric tool comprises an air blower body, an air blowing assembly is arranged in the air blower body, an air inlet is formed in one side of the air blower body, and an air outlet is formed in the other side of the air blower body; the first accessory is suitable for being connected with the air outlet of the air blower main body and forms a blowing machine together with the air blower main body; the second accessory is suitable for being connected with the air inlet of the air blower main body and forms dust collection equipment together with the air blower main body; and the third accessory is suitable for being connected with the air outlet of the air blower main body and forms an atomizing spray gun together with the air blower main body. The electric tool shares one air blower body and can be assembled into a dust collector or an atomizing spray gun or a blowing machine by being connected with different accessories in an attached mode, and operation is convenient and flexible.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mechanical equipment, in particular to an electric tool. BACKGROUND

[0002] There are many kinds of electric tools, including dust collectors, atomizing spray guns and blowers. The dust collector, the atomizing spray gun and the blower have common structures. They all blow air through a blower assembly, and then the air exported forms the effect of blowing or atomizing spraying. Specifically, the dust collector is mainly attached with a dust collection pipe at the air inlet of the blower assembly, and the atomizing spray gun is attached with a spray gun assembly at the air outlet of the blower assembly. Through understanding of the related art, the current dust collector, atomizing spray gun and blower are independent devices, and cannot be efficiently converted to achieve the purpose of sharing the blower assembly. SUMMARY

[0003] The purpose of at least one specific embodiment of the present application is to solve the defects in the prior art and provide an electric tool.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: An electric tool comprises: a blower main body, which has a blower assembly inside, one side of which is an air inlet and the other side of which is an air outlet; a first accessory, which is adapted to be connected with the air outlet of the blower main body and forms a blower together with the blower main body; a second accessory, which is adapted to be connected with the air inlet of the blower main body and forms a dust collection device together with the blower main body; a third accessory, which is adapted to be connected with the air outlet of the blower main body and forms an atomizing spray gun together with the blower main body.

[0005] Further, the first accessory is a blowing pipe, one end of which is quickly connected with the air outlet of the blower main body.

[0006] Further, the second accessory comprises a dust collection head, a dust collection hose quickly connected with the dust collection head, and one end of the dust collection hose away from the dust collection head is connected with the air inlet of the blower main body.

[0007] Further, the third accessory comprises a spray gun assembly, a gas supply hose quickly connected with the spray gun assembly, and one end of the gas supply hose away from the spray gun assembly is quickly connected with the air outlet of the blower main body.

[0008] Further, the blower assembly comprises a duct installed inside the blower main body, a fan installed inside the duct, and a fan blade connected with the fan. One end of the duct is an air inlet end, and the other end of the duct is an air outlet end. The air inlet end faces the air inlet, and the air outlet end faces the air outlet.

[0009] Further, the spray gun assembly comprises: a spray gun shell; a nozzle arranged at one end of the spray gun shell; an atomizing cap mounted at one end of the spray gun shell and sleeved outside the nozzle; a needle column assembly mounted in the spray gun shell for plugging the nozzle; wherein the spray gun shell is provided with a mounting portion, the needle column assembly is mounted in an inner cavity of the mounting portion, the inner cavity of the mounting portion is configured as a liquid flow guide cavity, the liquid flow guide cavity is communicated with a liquid flow guide pipe through a liquid inlet channel, an end of the liquid flow guide pipe extends into a liquid container, and the nozzle is located at an end of the liquid flow guide cavity; a cavity between the mounting portion and the spray gun shell is configured as a gas flow guide cavity, the gas flow guide cavity is communicated with a gas supply hose, the gas flow guide cavity is communicated with a sealing cavity through a first gas flow guide channel, and the gas flow guide cavity is communicated with an atomizing hole on the atomizing cap through a second gas flow guide channel.

[0010] Further, the spray gun shell is provided with a connecting portion, the liquid container is provided with a connecting head, the liquid container is connected with the connecting portion through the connecting head, and the connecting head and the connecting portion are connected to surround the sealing cavity.

[0011] Further, the needle column assembly comprises: a needle column mounted in the inner cavity of the mounting portion; a resilient member having one end connected with an end of the needle column and the other end abutting against an inner wall of the mounting portion; a sealing member sleeved outside the needle column, a peripheral surface of the sealing member being in contact with an inner wall of the liquid flow guide cavity; wherein an end of the needle column away from the resilient member is a plugging end, the plugging end faces the nozzle, and the plugging end can plug the nozzle under the elastic force of the resilient member.

[0012] Further, the spray gun shell is provided with a holding portion, the blower body is provided with a receiving opening, and the holding portion is adapted to be inserted into the receiving opening to support the spray gun shell on the blower body. The connecting portion is provided with a first supporting portion, one side of the holding portion is provided with a second supporting portion, and the first supporting portion and the second supporting portion are buckled with each other.

[0013] Further, the spray gun shell is rotatably connected with a trigger assembly, the trigger assembly comprises a trigger and a pin shaft connected with the trigger, the pin shaft penetrates through the needle column, the spray gun shell is provided with a movable slot, and the movable slot provides space required for the pin shaft to move forward and backward.

[0014] Further, the blower body is provided with a handle.

[0015] The advantages of the power tool provided in this application compared to the prior art are as follows: the power tool includes a blower body and is equipped with a first attachment, a second attachment, and a third attachment. The first attachment can be connected to the air outlet of the blower body and together with the blower body form a blower. The second attachment can be connected to the air inlet of the blower body and together with the blower body form a dust collection device. The third attachment can be connected to the air outlet of the blower body and together with the blower body form an atomizing spray gun. The power tool uses a single blower body and can be assembled into a vacuum cleaner, an atomizing spray gun, or a blower by attaching different attachments, making it convenient and flexible to operate. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main body of the blower in this application.

[0018] Figure 2 This is a cross-sectional schematic diagram of the blower body of this application.

[0019] Figure 3 This is a schematic diagram of the purging machine obtained after assembling the blower body and the first accessory according to this application.

[0020] Figure 4 for Figure 3 A cross-sectional schematic diagram.

[0021] Figure 5 This is a schematic diagram of the structure of the dust collection device obtained after assembling the blower body and the second accessory according to this application.

[0022] Figure 6 for Figure 5 A cross-sectional schematic diagram.

[0023] Figure 7 This is a schematic diagram of the atomizing spray gun obtained after assembling the blower body and the third accessory of this application.

[0024] Figure 8 for Figure 7 A top-down view.

[0025] Figure 9 for Figure 8 A schematic diagram of the cross section along line AA.

[0026] Figure 10 forFigure 8 A cross-sectional view along line B-B.

[0027] Figure 11 For Figure 9 A structural schematic view of the spray gun assembly.

[0028] Figure 12 For Figure 10 A structural schematic view of the spray gun assembly. DETAILED DESCRIPTION

[0029] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] With reference to Figure 1 , Figure 2 An electric tool, comprising a blower body 10, which has a blower assembly 20 inside, one side of which is an air inlet 101, and the other side is an air outlet 102; A first accessory 30, which can be connected with the air outlet 102 of the blower body 10, and together with the blower body 10 forms a blowing machine 100; A second accessory 40, which can be connected with the air inlet 101 of the blower body 10, and together with the blower body 10 forms a dust collection device 200; A third accessory 50, which can be connected with the air outlet 102 of the blower body 10, and together with the blower body 10 forms an atomizing spray gun 300.

[0031] In this embodiment, with reference to Figures 3 to 10 The first accessory 30 is a blowing pipe, one end of which is quickly connected with the air outlet 102 of the blower body 10.

[0032] Further, the second accessory 40 comprises a dust collection head 401, a dust collection hose 402 quickly connected with the dust collection head 401, and one end of the dust collection hose 402 away from the dust collection head 401 is quickly connected with the air inlet 101 of the blower body 10.

[0033] The third accessory 50 comprises a spray gun assembly 501, a gas supply hose 502 quickly connected with the spray gun assembly 501, and one end of the gas supply hose 502 away from the spray gun assembly 501 is quickly connected with the air outlet 102 of the blower body 10.

[0034] It should be noted that the connection between the blowing pipe and the air outlet 102 of the blower main body 10, the connection between the dust collection head 401 and the dust collection hose 402, the connection between the dust collection hose 402 and the air inlet 101, the connection between the air supply hose 502 and the spray gun assembly 501, and the connection between the air supply hose 502 and the air outlet 102 are all equipped with quick connectors 60. The quick connectors 60 adopt a buckle structure and can be quickly connected by buckling when two adjacent accessories are connected to each other.

[0035] In addition, in order to realize the commonality between the various accessories, the dust collection hose 402 and the air supply hose 502 can be shared in this embodiment. Specifically, the second accessory 40 and the third accessory 50 of the present application can share one hose. The end of the hose is connected to the dust collection head 401 through the quick connector 60, and the other end is quickly connected to the air inlet 101 of the blower main body 10 to form the dust collection equipment 200. One end of the hose is connected to the spray gun assembly 501, and the other end is connected to the air outlet 102 of the blower main body 10 to form the atomizing spray gun 300.

[0036] By sharing one hose for the dust collection hose 402 and the air supply hose 502, and using the quick connector 60 to realize different connection modes to constitute the dust collection equipment 200, the atomizing spray gun 300 and other multifunctional equipment, the user does not need to prepare multiple special-purpose hoses for different purposes. When using, the equipment function can be quickly switched according to the actual needs, greatly improving the applicability of the entire device in different operating scenarios. For example, in a cleaning scenario, the dust collection equipment 200 can be quickly switched to perform dust collection work, and in a scenario requiring spray treatment, the atomizing spray gun 300 can be easily assembled to carry out spray work.

[0037] Further, in order to realize the commonality between the various accessories, one end of the blowing pipe of the blowing machine 100 can be connected to the dust collection head 401 through the quick connector 60, and the other end can be connected to the air inlet 101 of the blower main body 10 through the quick connector 60. In this way, a straight rod dust collection equipment can be formed.

[0038] Further, the blower assembly 20 includes a duct 201 installed inside the blower main body 10, a fan 202 installed inside the duct 201, and a fan blade 203 connected to the fan 202. One end of the duct 201 is an air inlet end, and the other end is an air outlet end. The air inlet end faces the air inlet 101, and the air outlet end faces the air outlet 102.

[0039] Further, referring to Figure 11 , Figure 12 The spray gun assembly 501 includes: a spray gun housing 5011; a nozzle 5012 arranged at one end of the spray gun housing 5011; An atomizing cap 5013 is mounted on one end of the spray gun shell 5011 and covers the outside of the nozzle 5012; A needle column assembly 5014 is mounted in the spray gun shell 5011 for plugging the nozzle 5012; The spray gun shell 5011 has a mounting portion 5015, the needle column assembly 5014 is mounted in the inner cavity of the mounting portion 5015, the inner cavity of the mounting portion 5015 is configured as a liquid flow guide cavity 5016, the liquid flow guide cavity 5016 is communicated with a liquid flow guide pipe 5018 through a liquid inlet channel 5017, the end of the liquid flow guide pipe 5018 extends into a liquid container 5019, and the nozzle 5012 is located at the end of the liquid flow guide cavity 5016; The cavity between the mounting portion 5015 and the spray gun shell 5011 is configured as a gas flow guide cavity 5020, the gas flow guide cavity 5020 is communicated with a gas supply hose 502, the gas flow guide cavity 5020 is communicated with a sealing cavity 5022 through a first gas flow guide channel 5021, and the gas flow guide cavity 5020 is communicated with an atomizing hole 5024 on the atomizing cap 5013 through a second gas flow guide channel 5023.

[0040] Further, the spray gun shell 5011 has a connecting portion 5025, the liquid container 5019 has a connecting head 5026, the liquid container 5019 is threadedly connected with the connecting portion 5025 through the connecting head 5026, and the connecting head 5026 and the connecting portion 5025 are connected to surround the sealing cavity 5022.

[0041] Part of the flowing gas in the gas flow guide cavity 5020 enters the sealing cavity 5022 through the first gas flow guide channel 5021, and then enters the liquid container 5019 through the sealing cavity 5022, so that the liquid in the liquid container 5019 is pressed into the liquid flow guide pipe 5018 and flows into the liquid flow guide cavity 5016; The other part of the flowing gas in the gas flow guide cavity 5020 enters the atomizing cap 5013 through the second gas flow guide channel 5023 and is sprayed out of the atomizing hole 5024.

[0042] Further, the spray gun shell 5011 has a holding portion 5028, the blower main body 10 is provided with a placing opening 103, and the holding portion 5028 is adapted to be inserted into the placing opening 103 to support the spray gun shell 5011 on the blower main body 10. In addition, the connecting portion 5025 has a first supporting portion 5029, one side of the holding portion 5028 has a second supporting portion 5030, and the first supporting portion 5029 and the second supporting portion 5030 are buckled with each other.

[0043] Further, the needle column assembly 5014 comprises: A needle column 5031 is mounted in the inner cavity of the mounting portion 5015. a resilient member 5032, one end of which is connected to the end of the needle column 5031, and the other end is in contact with the inner wall of the mounting portion 5015, wherein the resilient member 5032 is preferably a spring; a sealing member 5033, which is sleeved on the outside of the needle column 5031, and the peripheral surface of the sealing member 5033 is in contact with the inner wall of the liquid flow guide cavity 5016; wherein the end of the needle column 5031 away from the resilient member 5032 is a blocking end 5034, which is directed towards the nozzle 5012, and under the elastic force of the resilient member 5032, the blocking end 5034 can block the nozzle 5012.

[0044] Further, the spray gun housing 5011 is rotatably connected with a trigger assembly, the trigger assembly includes a trigger 5035, a pin shaft 5036 connected with the trigger 5035, the pin shaft 5036 penetrates through the needle column 5031, and the spray gun housing 5011 is provided with a movable slot 5037, which provides the space required for the pin shaft to move forward and backward.

[0045] When the trigger 5035 is not pressed, the needle column assembly 5014 is blocked by the blocking end 5034 of the needle column 5031 under the elastic force of the resilient member 5032, and the liquid in the liquid flow guide cavity 5016 cannot be sprayed out.

[0046] When the trigger 5035 is pressed, the trigger 5035 drives the needle column 5031 to move against the elastic force of the resilient member 5032 through the pin shaft 5036, so that the blocking end 5034 of the needle column 5031 moves away from the nozzle 5012, and the liquid in the liquid flow guide cavity 5016 is sprayed out from the nozzle 5012 under the action of gas pressure, and at the same time, the airflow sprayed out from the atomizing air cap 5013 atomizes the liquid sprayed out from the nozzle 5024.

[0047] Further, the blower body 10 is provided with a handle 104, which facilitates holding the blower body 10.

[0048] The electric tool includes a blower body 10, and has a first accessory 30, a second accessory 40 and a third accessory 50, the first accessory 30 can be connected with the air outlet 102 of the blower body 10, and together with the blower body 10 forms a blowing machine 100, the second accessory 40 can be connected with the air inlet 101 of the blower body 10, and together with the blower body 10 forms a dust collection device 200, and the third accessory 50 can be connected with the air outlet 102 of the blower body 10, and together with the blower body 10 forms an atomizing spray gun 300, the electric tool shares a blower body 10, and by attaching different accessories, it can be assembled into a dust collector or an atomizing spray gun or a blowing machine, which is convenient and flexible to operate.

[0049] The present application can form a blowing machine 100, a dust collection device 200 and an atomizing spray gun 300 by matching different accessories with only one blower body 10, so that the user does not need to purchase multiple independent devices with different functions, and one power tool can meet the needs of multiple operations, such as cleaning the site, which can use the blowing machine function to clean dust and debris, and can be switched to the dust collection device to suck small particle dust, and can also be used as an atomizing spray gun to spray dust and spray pesticide, etc., greatly expanding the use scenarios and functional range of the device.

[0050] Compared with purchasing separate blowing machines, dust collectors and atomizing spray guns, the cost of purchasing such a multifunctional power tool is relatively lower, and whether it is for home users, small businesses or some professional cleaning, construction and other enterprises, it can meet the needs of diversified functions while reducing equipment procurement costs and improving the use of funds.

[0051] Since only one power tool body 10 with several accessories needs to be stored, compared with multiple large devices with different functions, the storage space occupied will be greatly reduced, and for space-limited workshops, warehouses, home cluttered rooms and other places, storage will be more convenient and easy to arrange.

[0052] When moving operations or using different sites, carrying this power tool 10 and its accessories is much easier than carrying multiple independent devices, for example, in some outdoor construction, gardening operations and other scenarios, workers can easily take them to the work site and switch functions as needed.

[0053] Using the same blower body 10 power and basic structure, through the clever design of accessories, multiple functions are realized, reducing the consumption of raw materials and other resources for producing multiple devices with different functions but some repeated structures, improving the effective use of resources from the entire industry chain.

[0054] Compared with multiple devices, only the blower body 10 and a small number of accessories need to be maintained, such as checking the key components of the motor, fan impeller and the connection and wear of the accessories, reducing the overall maintenance difficulty and workload, saving maintenance time and cost.

[0055] Usually, such design focuses on the convenience of operation, and users only need to perform simple operations such as installing and removing accessories to quickly convert the power tool into the required function mode without the need for complex debugging and relearning of the operation process of different devices, making it convenient for personnel with different skill levels to use.

[0056] It should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A power tool, characterized in that, include: The blower body contains a blower assembly, with an air inlet on one side and an air outlet on the other. The first accessory is adapted to be connected to the air outlet of the blower body and together with the blower body form a purging machine; The second accessory is adapted to be connected to the air inlet of the blower body and together with the blower body form a dust collection device; The third accessory is adapted to be connected to the air outlet of the blower body and together with the blower body form an atomizing spray gun.

2. The power tool according to claim 1, characterized in that, The first accessory is a purge pipe, one end of which is quickly connected to the air outlet of the blower body.

3. The power tool according to claim 1, characterized in that, The second accessory includes a vacuum head and a vacuum hose that is quick-connected to the vacuum head, with the end of the vacuum hose away from the vacuum head connected to the air inlet of the blower body.

4. The power tool according to claim 1, characterized in that, The third accessory includes a spray gun assembly and a quick-connect air supply hose to the spray gun assembly, with one end of the air supply hose away from the spray gun assembly being quick-connected to the air outlet of the blower body.

5. The power tool according to claim 1, characterized in that, The blower assembly includes a duct installed inside the blower body, a fan installed inside the duct, and fan blades connected to the fan. One end of the duct is an air inlet, and the other end is an air outlet. The air inlet faces the air inlet, and the air outlet faces the air outlet.

6. The power tool according to claim 4, characterized in that, The spray gun assembly includes: Spray gun housing; A nozzle is disposed at one end of the spray gun housing; An atomizing cap is installed at one end of the spray gun housing and sleeved on the outside of the nozzle; A needle column assembly, which is installed inside the spray gun housing, is used to seal the nozzle; The spray gun housing has a mounting part, the needle column assembly is installed in the inner cavity of the mounting part, the inner cavity of the mounting part is configured as a liquid guiding cavity, the liquid guiding cavity is connected to a liquid guiding pipe through a liquid inlet channel, the end of the liquid guiding pipe extends into a liquid container, and the nozzle is located at the end of the liquid guiding cavity; The cavity between the mounting part and the spray gun housing is configured as a gas guiding cavity. The gas guiding cavity is connected to the air supply hose. The gas guiding cavity is connected to the sealed cavity through a first gas guiding channel. The gas guiding cavity is connected to the atomizing hole on the atomizing cap through a second gas guiding channel.

7. The power tool according to claim 6, characterized in that, The spray gun housing has a connecting part, and the liquid container has a connecting head. The liquid container is connected to the connecting part through the connecting head, and the connecting head and the connecting part form the sealed cavity.

8. The power tool according to claim 6, characterized in that, The needle column assembly includes: The needle column is installed in the inner cavity of the mounting part; An elastic element, one end of which is connected to the end of the needle post, and the other end of which abuts against the inner wall of the mounting part; A sealing element is fitted over the outside of the needle column, and the circumferential surface of the sealing element contacts the inner wall of the liquid guiding cavity; The end of the needle column away from the elastic element is the sealing end, which faces the nozzle. Under the elastic force of the elastic element, the sealing end can seal the nozzle.

9. The power tool according to claim 6, characterized in that, The spray gun housing has a grip, and the blower body has a mounting port. The grip is adapted to be inserted into the mounting port to support the spray gun housing on the blower body. The connecting part has a first support part, and one side of the gripping part has a second support part, and the first support part and the second support part are engaged with each other.

10. The power tool according to claim 6, characterized in that, A trigger assembly is rotatably connected to the spray gun housing. The trigger assembly includes a trigger and a pin connected to the trigger. The pin passes through the needle post. The spray gun housing is provided with a movable groove, which provides space for the pin to move back and forth.

Images