Backpack type air blower

Abstract

The utility model relates to the field of garden electric tools, and particularly discloses a backpack type air blower which comprises a first shell and a second shell, a battery installation base, an air blowing assembly and other accessories are all installed on the first shell, in the assembly process of the accessories, the accessories do not need to be replaced on the other shell, and after all the accessories on the first shell are installed, the accessories on the second shell are replaced on the other shell. The second shell and the first shell are spliced, so that the main body structure of the backpack type air blower can be assembled, and the assembling efficiency of the whole backpack type air blower is improved; the first shell is connected with a backpack frame, the backpack frame is constructed to be a part of the first shell, after the battery installation base and the air blowing assembly are installed on the first shell, loads generated by all the accessories are mainly concentrated on one side of the backpack frame, and when the main body structure of the backpack type air blower is carried by the human body, the loads generated by all the accessories are close to the back of the human body. The fatigue feeling of a human body caused by carrying the blower main body structure for a long time can be reduced to a certain extent.

Description

Technical Field

[0001] The present application relates to the field of garden power tools, and in particular to a backpack blower. Background Art

[0002] Power tools are more environmentally friendly than engine-powered tools, leading to their widespread use. To facilitate portability, backpack blowers are now increasingly being used. Users carry the equipment on their backs, shouldering the weight, reducing hand strain and relieving fatigue.

[0003] The backpack blower mainly includes a main structure and a purge pipe connected to the main structure. The main structure includes two connectable shell units, and important accessories such as a battery pack and a blower assembly are arranged inside the shell units. When the main structure is assembled, the installation position of each accessory is likely to affect the center of gravity distribution and assembly efficiency of the main structure. Through understanding of relevant technologies, some backpack blowers have problems with unreasonable center of gravity distribution and low assembly efficiency during design of the main structure. Utility Model Content

[0004] The purpose of at least one specific embodiment of the present utility model is to solve the defects of the prior art and provide a backpack blower.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] A backpack blower comprising:

[0007] a first shell;

[0008] A second housing, which forms a main housing of the blower after being spliced ​​with the first housing;

[0009] Battery mount;

[0010] Blower assembly;

[0011] The battery mount and the blower assembly are both mounted on the first housing, and the first housing is configured as a structure for carrying accessories;

[0012] After the second shell is spliced ​​with the first shell, it covers the outer sides of the battery mounting seat and the air blowing assembly.

[0013] Furthermore, the first shell is connected to a backpack, and the battery mounting seat and the blower assembly are installed on the first shell and close to the backpack.

[0014] Furthermore, the backpack frame is constructed as a part of the first shell.

[0015] Furthermore, the first shell and the second shell are spliced ​​together to form an air supply channel, one end of the air supply channel is an air inlet, and the other end is an air outlet. The air blowing assembly is installed on the first shell and is located in the air supply channel.

[0016] Furthermore, the blower assembly includes an outer duct fixedly mounted on the first shell, a motor arranged in the outer duct, and a fan connected to the motor, wherein the air inlet side of the fan faces the air inlet, and the air outlet side of the fan faces the air outlet.

[0017] Furthermore, the outer side of the outer duct is covered with a cover plate, which is pressed and fixed to the outer side of the outer duct and fixedly connected to the first shell through a fixing piece.

[0018] Furthermore, a battery mounting seat is fixedly mounted on the back of the backpack frame, a battery pack is mounted on the battery mounting seat, and the battery pack is located on the back of the backpack frame and provides power to the blower assembly.

[0019] Furthermore, a controller is installed on the first housing, and the controller is connected to the motor via a signal line.

[0020] Furthermore, a protective cover is hinged on the second shell. After the first shell and the second shell are spliced ​​together, the protective cover covers the outside of the battery pack.

[0021] Furthermore, the backpack frame is provided with ventilation holes.

[0022] The beneficial effects of the present invention are as follows: the battery mounting base, the blower assembly, and other accessories (such as a controller) of the present application are all mounted on the first housing, that is, some important accessories are centrally mounted on one housing. During the assembly of the accessories, there is no need to replace them on another housing. After the various accessories on the first housing are installed, the second housing is spliced ​​with the first housing to complete the assembly of the main structure of the backpack blower, thereby improving the assembly efficiency of the entire backpack blower.

[0023] In addition, the first shell is connected to a backpack frame, which is constructed as a part of the first shell. After the battery mounting base (equipped with a battery pack) and the blower assembly are installed on the first shell, the load generated by the various accessories is mainly concentrated on one side of the backpack frame. When the main structure of the backpack blower is carried by the human body, the backpack frame is close to the back of the human body, and the load generated by the various accessories is close to the back of the human body, which can reduce the fatigue of the human body caused by carrying the main structure of the blower for a long time to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a schematic diagram of the main structure of a backpack blower in an embodiment of the present application.

[0026] Figure 2 This is a schematic diagram of the assembly of the main structure of a backpack blower in a certain embodiment of the present application.

[0027] Figure 3 This is a schematic assembly diagram of the main structure of the backpack blower in another state in a certain embodiment of the present application.

[0028] Figure 4 This is a cross-sectional schematic diagram of the main structure of a backpack blower in a certain embodiment of the present application. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1 , Figure 2 A backpack blower includes a main structure 100 and a purge pipe connected to the main structure 100, wherein the main structure 100 includes a first shell 10, a second shell 20 that is spliced ​​with the first shell 10 to form the main shell of the blower, a battery mounting seat 30 disposed in the main shell, and a blower assembly 40;

[0031] In this embodiment, the battery mounting base 30 and the blower assembly 40 are both installed on the first shell 10. The first shell 10 is constructed as a structure for carrying accessories, and the second shell 20 is not used to carry accessories. After the second shell 20 is spliced ​​with the first shell 10, the four corners are fixed by bolts. The fixed second shell 20 covers the outside of the battery mounting base 30 and the blower assembly 40.

[0032] In addition, refer to Figure 3 , Figure 4The first shell 10 is connected to the backpack frame 10a, and the backpack frame 10a is constructed as a part of the first shell 10. The battery mount 30 and the blower assembly 40 are installed on the first shell 10 and close to the backpack frame 10a. Specifically, the battery mount 30 can be fixed on the back of the backpack frame 10a by bolts. A battery pack 30a is installed on the battery mount 30. The battery pack 30a is located on the back of the backpack frame 10a and provides power to the blower assembly 40.

[0033] The backpack frame 10a is provided with a vent 10b. After the main structure 100 is assembled, the entire main structure 100 is carried on the back of a person through the backpack frame 10a. The vent 10b facilitates the entry of outside air into the interior of the main shell.

[0034] A protective cover 20 a is hingedly connected to the second shell 20 . After the first shell 10 and the second shell 20 are spliced ​​and fixed, the protective cover 20 a covers the outside of the battery pack 30 a .

[0035] Furthermore, the first shell 10 and the second shell 20 are spliced ​​together to form an air supply channel 50, one end of the air supply channel 50 is an air inlet 501, and the other end is an air outlet 502. The blowing assembly 40 is installed on the first shell 10 and is located in the air supply channel 50. A silencer 60 and an air inlet cover 70 are installed at the air inlet 501.

[0036] The blower assembly 40 includes an outer duct 401 fixedly mounted on the first shell 10, a motor 402 arranged in the outer duct 401, and a fan 403 connected to the motor 402, the air inlet side of the fan 403 faces the air inlet 501, and the air outlet side of the fan 403 faces the air outlet 502, and the power of the motor 402 is provided by the battery pack 30a.

[0037] In some embodiments, the outer side of the outer duct 401 is covered with a cover plate 80, which is fixedly connected to the first shell 10 by bolts. Corresponding positioning holes 801 are provided on the outer duct 401 and the cover plate 80. When the outer duct 401 is installed on the first shell 10, the cover plate 80 covers the surface of the outer duct 80. The end of the cover plate 80 is fixedly connected to the first shell 10 by bolts. The bolts are tightened in the positioning holes 801 of the cover plate 80, and the cover plate 80 presses the outer duct 401 on the first shell 10.

[0038] Furthermore, a controller 90 is mounted on the first housing 10 , and the controller 90 is connected to the motor 402 via a signal line.

[0039] When the main structure 100 of the present application is assembled on the production line, the battery mounting base 30, the blower assembly 40 and other accessories (such as the controller 90) are all installed on the first shell 10, that is, some important accessories are concentratedly installed on one shell. During the assembly of the accessories, there is no need to switch to another shell. After the various accessories on the first shell 10 are installed, the second shell 20 is spliced ​​with the first shell 10 to realize the assembly of the main structure of the backpack blower. During the assembly of the main structure 100, the first shell 10 gradually installs the various accessories on the assembly line. During the installation process, there is no need to switch to the second shell 10 to install the accessories, thereby improving the assembly efficiency of the entire backpack blower.

[0040] In addition, the first shell 10 is connected to a backpack frame 10a, which is constructed as a part of the first shell 10. After the battery mounting base 30 (equipped with a battery pack 30a) and the blower assembly 50 are installed on the first shell 10, the load generated by the various accessories is mainly concentrated on one side of the backpack frame 10a. When the main structure 100 of the backpack blower is carried by the human body, the backpack frame 10a is close to the back of the human body, and the load generated by the various accessories is close to the back of the human body, which can reduce the fatigue of the human body caused by carrying the main structure of the blower for a long time to a certain extent.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A backpack blower comprising: a first shell; a second housing, which forms a main housing of the blower after being spliced ​​with the first housing; Battery mount; Blower assembly; It is characterized in that the battery mounting base and the air blowing assembly are both mounted on the first shell, and the first shell is configured as a structure for carrying accessories; After the second shell is spliced ​​with the first shell, it covers the outer sides of the battery mounting seat and the air blowing assembly.

2. The backpack blower according to claim 1, characterized in that The first shell is connected to a backpack, and the battery mounting seat and the air blowing assembly are installed on the first shell and close to the backpack.

3. The backpack blower according to claim 2, characterized in that: The backpack frame is constructed as a part of the first shell.

4. The backpack blower according to claim 1, characterized in that The first shell and the second shell are spliced ​​together to form an air supply channel, one end of the air supply channel is an air inlet, and the other end is an air outlet. The air blowing assembly is installed on the first shell and is located in the air supply channel.

5. The backpack blower according to claim 4, characterized in that: The blower assembly includes an outer duct fixedly mounted on the first shell, a motor arranged in the outer duct, and a fan connected to the motor, the air inlet side of the fan faces the air inlet, and the air outlet side of the fan faces the air outlet.

6. The backpack blower according to claim 5, characterized in that: The outer side of the outer duct is covered with a cover plate, which is pressed and fixed to the outer side of the outer duct and fixedly connected to the first shell through a fixing piece.

7. The backpack blower according to claim 3, characterized in that: The battery mounting seat is fixedly mounted on the back of the backpack. A battery pack is mounted on the battery mounting seat. The battery pack is located on the back of the backpack and provides power to the blower assembly.

8. The backpack blower according to claim 5, characterized in that: A controller is also installed on the first shell, and the controller is connected to the motor via a signal line.

9. The backpack blower according to claim 7, characterized in that: A protective cover is hingedly connected to the second shell. After the first shell and the second shell are spliced ​​together, the protective cover covers the outer side of the battery pack.

10. The backpack blower according to claim 2, characterized in that: The backpack is provided with ventilation holes.

Images