CN221654167U - An improved blowing and suction machine - Google Patents

Abstract

An improved blowing and sucking machine comprises a shell, a motor, a blowing impeller and a ventilation pipe. An air duct is arranged in the shell and is provided with a first air opening and a connecting port. The motor is assembled in the housing. The air blowing impeller is positioned in the air duct and driven by the motor so that air flow enters from the first air opening. The ventilation pipe is connected with the connecting port in an assembling way and is provided with a second air port. The cross section of the connecting port is a polygonal body which is not a circular ring. The connecting port is provided with a clamping button capable of resetting through a spring, and the vent pipe is provided with a connecting groove matched and clamped with the clamping button. The connecting port is provided with a limiting groove, and the vent pipe is provided with a limiting piece which can be inserted into the limiting groove. Compared with the prior art, the utility model ensures that the vent pipe is firmly assembled on the shell, and avoids the connection between the vent pipe and the shell from loosening due to collision and the like of the vent pipe in the use process.

Description

An improved blowing and suction machine

Technical Field

The utility model relates to the field of blowing and suction machines, in particular to an improved blowing and suction machine.

Background Art

The blower-suction machine is a kind of equipment widely used in the field of cleaning, mainly used to remove dust, debris, fallen leaves and other debris on the ground. It achieves cleaning by generating a strong airflow to suck the debris on the ground into the machine or blow it off the surface where it was originally attached.

However, existing vacuum cleaners have some problems during use: because the end of the air duct needs to be aligned with the area to be cleaned, users often accidentally bump into the end of the air duct during use, causing the air duct to deform or damage, and the connection between the shell and the air duct is prone to loosening after long-term use, affecting the working efficiency of the vacuum cleaner. In addition, loose connections may also increase noise, affecting the user experience.

Therefore, based on some of the above prior art situations, the present application has been further designed and improved.

Utility Model Content

In order to solve the deficiencies in the prior art, the utility model provides an improved blowing-suction machine, which is used to solve the problem that the connection between the shell and the air duct in the prior art is easily loosened.

The technical solution of the utility model is:

An improved blowing and suction machine, comprising

The shell has an air duct arranged inside the shell, and the air duct has a first air port and a connecting port.

A motor is assembled in the housing.

The blowing impeller is located in the air duct and driven by a motor so that air flow enters from the first air port.

The ventilation pipe is connected to the connecting port and has a second air outlet. When the blower-vacuum machine is used as a blower, the airflow passes through the first air outlet and the connecting port and is blown out from the second air outlet.

The cross-section of the connecting port is a non-circular polygonal body; the connecting port is provided with a snap-in button which can be reset by a spring, and the ventilation pipe is provided with a connecting groove which cooperates with the snap-in button; the connecting port is provided with a limiting groove, and the ventilation pipe is provided with a limiting plate which can be inserted into the limiting groove.

Furthermore, the ventilation duct includes a reinforcement pipe and an air outlet duct; the reinforcement pipe includes a connecting pipe section for connecting to the connecting port, and a connecting ring section for connecting to the air outlet duct; the connecting pipe section and the connecting ring section are connected by connecting ribs, and a reinforcement gap is formed between the connecting ribs to supplement the airflow to increase the air output.

Furthermore, the air outlet pipe is provided with a clamping block and a limiting groove, and the reinforcing pipe is provided with a clamping groove matched with the clamping block, and a limiting portion matched with the limiting groove.

Furthermore, a handle is provided on the housing, and a switch for controlling the start or reversal of the motor and an adjusting wheel for controlling the speed of the motor are provided on the handle.

Furthermore, a first dual-holding block is provided at the front end of the handle.

Furthermore, a second dual-holding block is provided at the rear end of the shell.

Furthermore, the shell is equipped with a protective mesh plate at the first air outlet.

The utility model also provides another improved blowing and suction machine, comprising

The shell has an air duct arranged inside the shell, and the air duct has a first air port and a connecting port.

A motor is assembled in the housing.

The blowing impeller is located in the air duct and driven by a motor so that air flow enters from the first air port.

The ventilation pipe is assembled and connected with the connecting port and has a second air outlet. When the blower-suction machine is used as a suction fan, the airflow is blown out from the first air outlet through the second air outlet and the connecting port.

The cross-section of the connecting port is a non-circular polygonal body; the connecting port is provided with a snap-in button which can be reset by a spring, and the ventilation pipe is provided with a connecting groove which cooperates with the snap-in button; the connecting port is provided with a limiting groove, and the ventilation pipe is provided with a limiting plate which can be inserted into the limiting groove.

Furthermore, the ventilation duct includes a first air duct and a second air duct, the first air duct is connected to the connecting port, and the second air duct is connected to the first air duct by a snap-fit assembly.

Furthermore, the diameter of the second air duct gradually narrows from the assembly point with the first air duct toward the pipe opening.

Furthermore, the second air duct is provided with a protective convex edge below the duct opening.

Furthermore, a handle is provided on the housing, and a switch for controlling the start or reversal of the motor and an adjusting wheel for controlling the speed of the motor are provided on the handle.

Furthermore, a first dual-holding block is provided at the front end of the handle.

Furthermore, a second dual-holding block is provided at the rear end of the shell.

Furthermore, the shell is equipped with a protective mesh plate at the first air outlet.

Compared with the prior art, the utility model has the following beneficial effects: through the two connection modes of the snap-on button and the connection groove, the limit plate and the limit groove, the ventilation pipe is firmly assembled on the shell, and the connection between the ventilation pipe and the shell is prevented from loosening due to the ventilation pipe being bumped during use. The cross section of the connection port is a non-circular polygonal body, which can prevent the ventilation pipe from deflecting relative to the shell and causing damage to the connection structure between the ventilation pipe and the shell.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective schematic diagram of a blowing-suction machine in an embodiment.

FIG. 2 is a schematic plan view showing the internal structure of the housing.

FIG. 3 is a perspective schematic diagram showing the internal structure of the housing.

FIG. 4 is a perspective schematic diagram 1 of the reinforcement tube.

FIG. 5 is a second perspective schematic diagram of the reinforcement tube.

FIG. 6 is a perspective schematic diagram of the air outlet duct.

FIG. 7 is a perspective schematic diagram of a blowing-suction machine in another embodiment.

FIG8 is a perspective schematic diagram of the first air duct.

FIG. 9 is a perspective schematic diagram of the second air duct.

The following is a description of the markings in the accompanying drawings of the specification:

100, housing; 110, first air outlet; 120, connection port; 121, limit slot; 130, snap-on button; 140, switch; 150, adjustment roller; 160, first double-holding block; 170, second double-holding block; 180, protective mesh; 190, handle;

200, ventilation pipe; 201, second air outlet; 202, connecting groove; 203, limiting piece; 210, reinforcing pipe; 211, connecting pipe section; 212, connecting ring section; 213, connecting rib; 214, reinforcing gap; 215, clamping groove; 216, limiting part; 220, air outlet pipe; 221, clamping block; 222, limiting groove; 230, first air duct; 240, second air duct; 241, protective convex edge;

300, motor;

400. Blower impeller.

DETAILED DESCRIPTION

The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

In the following embodiments, the same or similar numbers throughout represent the same or similar components or components with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limitations on the present invention.

In the description of the present utility model, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and therefore cannot be understood as limiting the present utility model. In addition, the terms: first, second, etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present utility model, unless otherwise clearly specified and limited, the terms: install, connect, connect, etc. should be understood in a broad sense, and ordinary technicians in this field can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Referring to FIGS. 1 to 6 , an improved blower-suction machine includes a housing 100, a motor 300, a blowing impeller 400 and a ventilation pipe 200. An air duct is provided in the housing 100, and the air duct has a first air port 110 and a connecting port 120. The motor 300 is assembled in the housing 100. The blowing impeller 400 is located in the air duct and driven by the motor 300 so that the air flow enters from the first air port 110. The ventilation pipe 200 is assembled and connected to the connecting port 120 and has a second air port 201. When the blower-suction machine is used as a hair dryer, the air flow is blown out from the second air port 201 through the first air port 110 and the connecting port 120. When the blower-suction machine is used as a suction blower, the air flow is blown out from the first air port 110 through the second air port 201 and the connecting port 120.

In particular, the cross section of the connection port 120 is a non-circular polygonal body. The connection port 120 is provided with a snap-on button 130 that can be reset by a spring, and the ventilation pipe 200 is provided with a connection groove 202 that is snap-on with the snap-on button 130. The connection port 120 is provided with a limiting groove 121, and the ventilation pipe 200 is provided with a limiting piece 203 that can be inserted into the limiting groove 121. Through the two connection modes of the snap-on button 130 and the connection groove 202, the limiting piece 203 and the limiting groove 121, the ventilation pipe 200 is firmly assembled on the housing 100, and the connection between the ventilation pipe 200 and the housing 100 is prevented from loosening due to the collision of the ventilation pipe 200 during use. And the cross section of the connection port 120 is a non-circular polygonal body, which can prevent the ventilation pipe 200 from deflecting relative to the housing 100 and causing damage to the connection structure between the ventilation pipe 200 and the housing 100.

Referring to Figures 7 to 9, as an embodiment of the utility model, the ventilation pipe 200 is used for blowing air. When the blower and suction machine is used as a hair dryer, the airflow is blown out from the second air outlet 201 through the first air outlet 110 and the connecting port 120. The ventilation pipe 200 includes a reinforcing pipe 210 and an air outlet pipe 220. The reinforcing pipe 210 includes a connecting pipe section 211 for connecting with the connecting port 120, and a connecting ring section 212 for connecting with the air outlet pipe 220. The connecting pipe section 211 and the connecting ring section 212 are connected by connecting ribs 213, and a reinforcing gap 214 is formed between the connecting ribs 213 to supplement the airflow to enhance the air output. Specifically, a clamping block 221 and a limiting groove 222 are provided on the air outlet pipe 220, and a clamping groove 215 that cooperates with the clamping block 221 and a limiting portion 216 that cooperates with the limiting groove 222 are provided on the reinforcing pipe 210. When the blower and vacuum machine is working, the blowing impeller 400 drives the airflow from the air duct to the ventilation pipe 200. When the airflow passes through the connecting ring section 212, due to the high airflow velocity, a pressure difference is generated between the ventilation pipe 200 and the outside, so that the atmospheric pressure presses the outside airflow into the ventilation pipe 200 through the reinforced gap 214, thereby increasing the amount of air blown out.

Furthermore, the housing 100 is provided with a handle 190, and the handle 190 is provided with a switch 140 for controlling the start or reversal of the motor 300, and an adjusting roller 150 for controlling the speed of the motor 300. A first double-holding block 160 is provided at the front end of the handle 190. A second double-holding block 170 is provided at the rear end of the housing 100. The user can control the blowing by holding the handle 190 with one hand, and holding the first double-holding block 160 or the second double-holding block 170 with the other hand, so that the user can stabilize the device in a convenient posture. The housing 100 is equipped with a protective mesh plate 180 at the first air outlet 110 to prevent debris from being sucked in when the first air outlet 110 takes in air.

The utility model also provides another embodiment, wherein the ventilation pipe 200 is used for suction, and when the blower and suction machine is used as a suction machine, the airflow is blown out from the first air outlet 110 through the second air outlet 201 and the connection port 120. The user removes the protective mesh plate 180, installs the receiving bag, and converts the blower and suction machine into a suction machine by reverse driving the motor 300. The difference between this embodiment and the above embodiment is that:

The ventilation duct 200 includes a first air duct 230 and a second air duct 240. The first air duct 230 is connected to the connection port 120, and the second air duct 240 is connected to the first air duct 230 by means of a snap-fit assembly. The diameter of the second air duct 240 gradually converges from the assembly point with the first air duct 230 to the pipe opening, which is conducive to increasing the suction force at the pipe opening of the second air duct 240. The second air duct 240 is provided with a protective convex edge 241 below the pipe opening, which is conducive to strengthening the pipe opening structural strength of the second air duct 240, avoiding pipe opening wear, and increasing the service life of the ventilation duct 200.

The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims (9)

1. An improved blowing and suction machine, comprising A housing (100), wherein an air duct is arranged inside the housing (100), and the air duct has a first air port (110) and a connection port (120); and a motor (300), the motor (300) being assembled in the housing (100); and a blowing impeller (400), the blowing impeller (400) being located in the air duct and driven by the motor (300) so that air flow enters from the first air port (110); and a ventilation pipe (200), the ventilation pipe (200) being assembled and connected to the connecting port (120) and having a second air port (201); when the blower-vacuum machine is used as a blower, air flows through the first air port (110) and the connecting port (120) and is blown out from the second air port (201); when the blower-vacuum machine is used as a suction fan, air flows through the second air port (201) and the connecting port (120) and is blown out from the first air port (110); The invention is characterized in that the cross section of the connecting port (120) is a non-circular polygonal body; the connecting port (120) is provided with a snap-on button (130) capable of being reset by a spring, and the ventilation pipe (200) is provided with a connecting groove (202) that is snap-on with the snap-on button (130); the connecting port (120) is provided with a limiting groove (121), and the ventilation pipe (200) is provided with a limiting piece (203) that can be inserted into the limiting groove (121); The ventilation pipe (200) comprises a reinforcement pipe (210) and an air outlet pipe (220); the reinforcement pipe (210) comprises a connection pipe section (211) for connecting to the connection port (120), and a connection ring section (212) for connecting to the air outlet pipe (220); the connection pipe section (211) and the connection ring section (212) are connected via connection ribs (213); and a reinforcement gap (214) is formed between the connection ribs (213) to allow airflow to be added to increase the air output. 2. An improved blower-suction machine according to claim 1, characterized in that a clamping block (221) and a limiting groove (222) are provided on the air outlet pipe (220), and a clamping groove (215) matched with the clamping block (221) and a limiting portion (216) matched with the limiting groove (222) are provided on the reinforcing pipe (210). 3. An improved blowing and suction machine according to claim 1, characterized in that the ventilation duct (200) comprises a first air duct (230) and a second air duct (240), the first air duct (230) is connected to the connecting port (120), and the second air duct (240) is connected to the first air duct (230) by means of a snap-fit assembly. 4. An improved blowing and suction machine according to claim 3, characterized in that the diameter of the second air duct (240) gradually narrows from the assembly point with the first air duct (230) toward the pipe opening. 5. An improved blowing-suction machine according to claim 3, characterized in that the second air duct (240) is provided with a protective convex edge (241) below the duct opening. 6. An improved blowing and suction machine according to claim 1, characterized in that a handle (190) is provided on the housing (100), and a switch (140) for controlling the start or reversal of the motor (300) and an adjusting roller (150) for controlling the rotation speed of the motor (300) are provided on the handle (190). 7. An improved blowing-suction machine according to claim 6, characterized in that a first double-holding block (160) is provided at the front end of the handle (190). 8. An improved blowing-suction machine according to claim 1, characterized in that a second double-holding block (170) is provided at the rear end of the shell (100). 9. An improved blowing-suction machine according to claim 1, characterized in that the housing (100) is equipped with a protective mesh plate (180) at the first air outlet (110).