KR20050018492A - Nozzle assembly for vacuum cleaner - Google Patents

Abstract

PURPOSE: A suction nozzle body of a vacuum cleaner is provided to make a rotary roller of the suction nozzle body interlock according to the rotation of an extension pipe and a suction pipe. CONSTITUTION: A suction nozzle body of a vacuum cleaner comprises a lower case(110) constituting the bottom surface; an upper case(120) constituting the top exterior; a suction pipe(152) arranged to the upper side of the upper case; and a rotary roller(132) interlocking with the suction pipe. The upper case is arranged to the upper side of the lower case. One end of the suction pipe is combined to an extension pipe(150). A passage connection member(130) making air and foreign materials sucked from the outside flow into the suction pipe is formed to one side of the lower case. One end of the suction pipe is fastened to one end of the passage connection member and the passage connection member is rotated according to the movement of the suction pipe.

Description

Suction nozzle body of vacuum cleaner {Nozzle assembly for vacuum cleaner}

The present invention relates to a vacuum cleaner, and more particularly, to a suction nozzle body of a vacuum cleaner having a rotary roller interlocked with an extension pipe and a suction pipe at a lower end thereof.

In general, the vacuum cleaner is a device that generates a strong suction force in the vacuum cleaner body to force the suction of the ground dust through the suction nozzle body to perform the cleaning, and in recent years it is spread in most general households, especially the carpet and sofa cleaning The demand is increasing due to necessity.

As shown in FIG. 1, a general vacuum cleaner includes a main body 2 having a built-in motor capable of generating suction force, a connection hose 4 connected to communicate with the inside of the main body, and made of a flexible material; Extension tube 6 is connected to the connection hose and configured to adjust the length of the tube, and the suction nozzle body 10 is installed at the end of the extension tube 6 to suck air containing foreign matter from the bottom surface It is configured by.

The main body 2 has a built-in motor for generating a suction force by forming a vacuum, and a filtering device for filtering foreign substances contained in the sucked air. A pair of wheels 2a are provided below the main body 2 so that the cleaner main body 2 can be led to a desired portion.

One side of the main body 2 is provided with a power plug 2b for supplying power and a wire connected thereto, and the electric wire is configured to be wound around a cord reel (not shown) inside the main body.

In addition, the upper end of the extension pipe 6, the handle portion 5 for the cleaner user to hold by hand is detachably installed, the handle portion 5, the operation button 5a for controlling the operation of the vacuum cleaner ) Is installed.

When performing the cleaning, by suction force generated in the interior of the body 2, the suction nozzle body 10 is sucking the air containing foreign substances in the part to be cleaned. Then, the air sucked in is introduced into the main body through the extension pipe 6 and the connection hose (4). Inside the main body 2, foreign matter is filtered and collected at one side by a filtering device, and the filtered air is radiated while passing through the motor inside and then exhausted to the outside.

Thus, the suction nozzle body 10 which inhales the air containing a foreign material is comprised so that attachment and detachment of the said extension pipe are possible. If necessary, the suction nozzle body 10 may be separated from the end of the extension pipe 6, and a separate suction port such as a cravis tool or a brush suction port may be mounted and used.

FIG. 2 shows the bottom surface of the suction nozzle body 10 of the vacuum cleaner shown in FIG. 1. As shown in the drawing, a suction hole 12 for sucking air is formed at the center of the bottom surface of the suction nozzle body 10.

The suction hole 12 is an inlet through which air containing foreign matter is sucked by the suction force generated during operation of the vacuum cleaner, and the outside air sucked through the suction hole 12 is the suction nozzle body 10. It is introduced into the extension pipe (6) via the inside of the.

Left and right suction passages 14 are formed on the bottom of the suction nozzle body 10. The left and right suction passages 14 are formed to the left and right, and have a shape recessed in a predetermined portion upward from the bottom surface. Meanwhile, a front suction passage 16 is formed in front of the left and right suction passages 14, and the front suction passage 16 may be divided into a plurality of passages by a plurality of front end protrusions 16 ′.

The bottom surface of the suction nozzle body 10 is provided with a wheel seat 22 is fixed to the rotating roller 20. The wheel seat 22 is formed in a pair from side to side, the roller seat 24 is seated inside the wheel seat 22. The roller fixture 24 is formed in a circular shape is rotatably installed on the wheel seat 22.

That is, the roller fixture 24 is not shown, but is configured to rotate around the center of the hinge, the wheel is fixed to the lower side of the roller fixture 24 is rotated. Therefore, the roller fixing tool 24 is rotated in accordance with the movement of the suction nozzle body 10 to guide the movement of the suction nozzle body 10.

In addition, an auxiliary wheel 26 is further installed at the bottom end of the suction nozzle body 10. The auxiliary wheel 26 is fixed to the left and right end portions of the front end portion of the suction nozzle body 10 to support the suction nozzle body 10.

The prior art as described above has the following problems.

The rotary roller 20 is fixed to the circular roller fixture 24 is switched in accordance with the rotation of the roller fixture 24. That is, the roller fixture 24 is rotated in accordance with the movement of the suction nozzle body 10, and the roller fixture 24 is rotated by the hinge of the central portion to support the suction nozzle body 10.

However, since the roller fixing tool 24 is attached to the wheel seating portions 22 formed on both sides of the suction nozzle body 10, it may not be easily rotated by the left and right movement of the suction nozzle body 10. do. That is, the roller fixing tool 24 inserted and rotated in the wheel seat 22 does not rotate in response to the left and right moving directions of the suction nozzle body 10, and thus the suction nozzle body 10 does not move in the desired direction. There was a problem.

In addition, in order to move the suction nozzle body 10, the wheel seats 22 are provided at both sides of the suction nozzle body 10, and the two roller fasteners 24 are inserted to increase the material cost as well as the manufacturing process. I had another problem that complicated it.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to provide a suction nozzle body of a vacuum cleaner in which a rotating roller of the suction nozzle body is interlocked with the rotation of the suction pipe and the extension pipe.

The suction nozzle body of the vacuum cleaner according to the present invention for achieving the above object is a lower case forming a bottom surface; An upper case provided on an upper side of the lower case to form an upper appearance; A suction pipe provided at an upper portion of the upper case and having one end coupled to the extension tube; It is configured to include a rotary roller that is interlocked with the suction pipe.

On the other hand, one side of the lower case is further provided with a flow path connecting member for guiding the air and foreign matter sucked from the outside into the suction pipe.

One end of the suction pipe is coupled to one end of the flow path connecting member so that the flow path connecting member is rotated according to the flow of the suction pipe.

The rotary roller is installed on one side of the flow path connecting member.

And, the rotary roller is fixed to the lower end of the flow path connecting member, characterized in that it is installed to protrude downward through the lower case.

According to the suction nozzle body of the vacuum cleaner of this invention which has such a structure, there exists an advantage that the suction nozzle body is easy to move and it is easy to clean.

Hereinafter, exemplary embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings.

3 is a perspective view of a vacuum cleaner suction nozzle body according to the present invention, and FIG. 4 is a perspective view of a bottom surface of the vacuum cleaner suction nozzle body according to the present invention. 5 is an exploded perspective view of the vacuum cleaner suction nozzle body according to the present invention, and FIG. 6 is an exploded perspective view of the bottom surface of the flow path connecting member, which is a main component of the vacuum cleaner suction nozzle body according to the present invention.

As shown in these figures, the appearance of the suction nozzle body 100 according to the present invention is provided on the lower case 110 and the upper side of the lower case 110 to form a large bottom surface to form an upper appearance The upper case 120 is made.

In addition, one side of the upper case 120 and the lower case 110, a plurality of parts such as a flow path connecting member 130 for guiding the sucked air, noise reduction mouth 140 to reduce the noise of the sucked air is more It is provided.

A suction port 112 for sucking air is formed at the center of the bottom surface of the suction nozzle body 100. The suction port 112 is an inlet in which air containing foreign matter is sucked by the suction force generated during operation of the vacuum cleaner, and the external air sucked through the suction port 112 opens the inside of the suction nozzle body 100. It is introduced into the extension pipe 150 via.

The noise reduction port 140 is provided at an upper end portion of the suction port 112. The noise reduction opening 140 has a plurality of recesses formed on the bottom thereof, and the noise of the air sucked into the suction port 112 is reduced by the recess.

Left and right suction passages 114 are formed on the bottom of the lower case 110. The left and right suction passages 114 are formed to the left and right sides of the suction nozzle body 100 and have a shape recessed in a predetermined portion upward from the bottom surface. Meanwhile, a front suction passage 115 is formed in front of the left and right suction passages 114, and the front suction passage 115 is divided into a plurality of passages by a plurality of front end protrusions 115 ′.

Auxiliary wheels 116 are provided at both ends of the bottom surface of the lower case 110. The auxiliary wheel 116 is installed so as to face the front and rear, thereby serving to support the front and rear movement of the suction nozzle body (100).

A central rear end of the lower case 110 protrudes to a rearward portion to form a connection member seating portion 118 to which the flow path connecting member 130 to be described below is seated. The center of the connecting member seating portion 118 is recessed downward to form a seating groove 118a, and the center of the seating groove 118a is installed through the rotating roller 132 to be described below. The wheel through-hole 118b is formed.

Along the outer circumference of the wheel through hole 118b is formed a spring support 118c on which the return spring 138, which will be described below, is hooked. The spring support 118c is formed to protrude upward from a top surface of the seating groove 118a to be hooked to a central portion of the return spring 138 to be described below.

The upper end of the seating groove 118a is further formed with a spring hook portion 118d to which one end of the return spring 138 to be described below is hooked. Therefore, one end of the return spring 138 is hooked to the spring hanger 118d so that the suction nozzle body 100 is rotated left and right, and then returns to its original state.

The upper case 120 coupled to the upper side of the lower case 110 has an edge corresponding to the lower case 110, and the rear end portion of the central portion of the upper case 120 corresponds to the connecting member seating portion 118. Is formed to protrude to the rear, the connecting member cover portion 122 is formed in the through hole 124 penetrated up and down, the passage connecting member 130 is inserted into the through hole 124 is installed do.

On the other hand, the center portion of the upper case 120, which is the front of the connecting member cover portion 122 protrudes rounded upwards so that the passage of the external air sucked through the suction port 112 flows into the extension pipe 150. To form. In addition, an upper portion of the through hole 124 is shielded by the cover part 160 to be described below.

The flow path connecting member 130 is seated on an upper surface of the seating groove 118a. The flow path connecting member 130 has a substantially cylindrical shape, the lower surface is formed in a shape corresponding to the seating groove 118a to be able to rotate from side to side on the seating groove 118a.

The front and side front end portions of the flow path connecting member 130 are opened and external air sucked through the suction port 112 flows in through the front and side openings. Therefore, the air introduced into the flow path connecting member 130 is discharged to the rear to flow to the extension pipe 150.

The rotating roller 132 is installed at the center of the bottom surface of the flow path connecting member 130. That is, a pair of wheel fixing parts 134 protruding downward is formed at the center of the bottom surface of the flow path connecting member 130, and both ends of the rotating shafts 132 ′ of the rotating rollers 132 are fixed to the wheel fixing parts 134. It is fixed by hanging.

In this case, the rotation roller 132 is changed in accordance with the rotation of the flow path connecting member 130, the flow path connecting member 130 is interlocked with the extension pipe 150, and eventually, the rotating roller 132 Is always facing the same direction as the direction of the extension pipe 150 and the suction pipe 152 to be described below.

In addition, the bottom end portion of the flow path connecting member 130 is formed to protrude downward spring engaging jaw 136, the side end of the return spring 138 to be described below. The spring catching jaw 136 is formed in an arc shape corresponding to the spring hook portion 118d formed in the seating groove 118a, and the flow path connecting member 130 is seated on the connection member seating portion 118. When rotated, one end of the return spring 138 is pushed to one side while intersecting with the spring hanger 118d.

Between the seating groove 118a and the flow path connecting member 130 is provided with a return spring 138 for generating a restoring force so that the flow path connecting member 130 is automatically returned to its original position when the flow path connecting member 130 is rotated. do. The return spring 138 is formed in a ring shape, and both ends thereof are fixed to contact both sides of the spring hook portion 118d.

The center portion of the return spring 138 is seated on the spring support 118c. Therefore, the outer diameter of the spring support 118c should be smaller than the usual inner diameter of the return spring 138. That is, the spring support 118c is formed to be smaller than the diameter of the return spring 138 in a normal state, but when the return spring 138 is compressed, the spring support 138c may prevent the flow of the return spring 138. It should be formed to have a diameter of.

The upper center portion of the flow path connecting member 130 is opened, and the opening communicates with the extension pipe 150. A suction pipe 152 is further installed at the tip of the extension tube 150, and a hemispherical body 154 is formed at the tip of the suction pipe 152.

Hinge 154 'protruding laterally is integrally formed at both side ends of the outer surface of the hemisphere 154, and covers the inner both ends of the flow path connecting member 130 and the upper side of the flow path connecting member 130. Hinge holes 160 ′ and 160 ″ are formed at both inner ends of the part 160 so that the hinge 154 ′ of the suction pipes may be mounted at the mutual coupling, and the upper and lower sides of the suction pipe 230 may be formed. Rotation is made to be made in a state supported by the flow path connecting member 130 and the cover 160 around the hinge 154 '.

In addition, the inner surface shape of the cover portion 160 to form a hemispherical shape as a whole, the inner diameter of the suction pipe 152 by forming the same as or larger than the outer diameter formed by the hemispherical body 154 of the suction Allow the pipe to rotate smoothly. At this time, the outer diameter of the hemispherical body 154 of the suction pipe 152 is more preferably smaller than the inner diameter of the cover portion 160 to enable smooth rotation.

Hereinafter, the operation of the vacuum cleaner suction nozzle as described above will be described.

When the outside air and the foreign substances are sucked through the suction nozzle body 100 and the suction port 112 of the vacuum cleaner, the mixed air passes through the suction pipe 152 via the flow path connecting member 130, It is introduced into the main body (not shown) of the vacuum cleaner through the extension pipe 150.

On the other hand, for cleaning the gaps or other corners of the room there is a necessity to work by tilting the suction nozzle body (100). That is, when cleaning the gaps or corners, the suction nozzle body 100 is rotated at a predetermined angle in a state orthogonal to the extension pipe 150, and the foreign substances such as dust in the corners are easily sucked.

As such, the suction nozzle body 100 can be cleaned in the bottom in an inclined state without being orthogonal to the suction pipe 152. The flow path connecting member 130 connects to the connection member seat of the lower case 110. This is because the suction nozzle body 100 and the suction pipe 152 can be easily rotated with each other because it is seated rotatably at 118.

When the flow path connecting member 130 is interlocked with the extension pipe 150 and the suction pipe 152, the rotary roller 132 provided at the lower end of the flow path connecting member 130 also includes the suction pipe 152. The result is linked with the extension pipe 150. As a result, when the extension pipe 150 is inclined at a predetermined angle from the suction nozzle body 100, the rotary roller 132 is also inclined at a predetermined angle to be aligned in the same direction as the extension pipe 150.

Therefore, regardless of the coupling angle of the suction nozzle body 100 and the extension pipe 150, the rotary roller 132 is always in a straight line direction with the extension pipe 150, the user holding the extension pipe 150 by hand and suction When cleaning while pushing the nozzle body 100, the suction nozzle body 100 can be easily moved to the front of the extension pipe (150).

On the other hand, when the suction nozzle body 100 is inclined at a predetermined angle with the extension pipe 150, and the cleaning is finished, the suction nozzle body 100 should be perpendicular to the extension pipe 150 in its original state. .

Therefore, at this time, the return spring 138 acts. That is, the return spring 138 installed between the lower portion of the flow path connecting member 130 and the upper surface of the connection member seating portion 118 is open at both ends when the suction nozzle body 100 is inclined.

When both ends of the return spring 138 are opened, one end is hooked to one side end of the spring hook 118d and the other end is hooked to one side end of the spring hooking jaw 136. As such, when both ends of the return spring 138 are opened, a restoring force is restored to the original state.

As a result, when the suction nozzle body 100 is inclined and cleaned at a predetermined angle, and the frictional force between the bottom surface and the bottom surface of the suction nozzle body 100 is reduced, the suction nozzle is restored by the restoring force of the return spring 138. Sieve 100 is to maintain a state (original state) perpendicular to the extension pipe 150 again.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

According to the present invention as described above, a flow path connecting member is provided at the rear end of the suction nozzle body, and a rotary roller is installed at the bottom of the flow path connecting member.

In addition, the rotary roller is fixed to the flow path connecting member, so that when the flow path connecting member is interlocked with the flow of the extension pipe, the rotary roller is also interlocked with the extension pipe.

Therefore, according to the present invention, even when the suction nozzle body and the extension pipe form a predetermined angle out of the initial orthogonal position (that is, when the user changes the direction of the connecting pipe to change the forward direction of the suction nozzle body). Since the rotary rollers always face the same direction as the direction of the extension pipe, the suction nozzle body flows more smoothly.

That is, according to the present invention, since the suction nozzle body is easily moved in the direction desired by the user, there is an advantage that the cleaning operation becomes easier, which has the effect of improving the customer's desire to buy the product.

In addition, it is possible to save the unit cost of the product by reducing the material cost consumed to manufacture the product and shorten the production process, it can bring a more advantageous effect.

1 is a perspective view showing a conventional general vacuum cleaner.

Figure 2 is a bottom view of the vacuum cleaner suction nozzle body according to the prior art.

Figure 3 is a perspective view showing a preferred embodiment of the vacuum cleaner suction nozzle body according to the present invention.

Figure 4 is a bottom view of a preferred embodiment of the vacuum cleaner suction nozzle body according to the present invention.

Figure 5 is an exploded perspective view showing the configuration of a preferred embodiment of the vacuum cleaner suction nozzle body according to the present invention.

Figure 6 is an exploded perspective view showing the bottom surface of the flow path connecting member of the main portion of the suction nozzle body of the vacuum cleaner according to the present invention.

Explanation of symbols on the main parts of the drawings

100. Suction nozzle body 110. Lower case

112. Suction port 114. Suction channel

115. Forward suction flow path 116. Auxiliary wheel

118. Mounting member seat 118a. Home

118b. Through-hole 118c. Spring support

118d. Spring hanger 120. Upper case

122. Cover member 124. Through hole

130. Flow connecting member 140. Noise reduction

150. Extension pipe 152. Suction pipe

154. Hemispheres 160. Cover

Claims (5)

A lower case forming a bottom surface; An upper case provided on an upper side of the lower case to form an upper appearance; A suction pipe provided at an upper portion of the upper case and having one end coupled to the extension tube; The suction nozzle body of the vacuum cleaner, characterized in that it comprises a rotary roller which is interlocked with the suction pipe. The suction nozzle body of claim 1, further comprising a flow path connecting member configured to guide air and foreign substances sucked from the outside into the suction pipe on one side of the lower case. The suction nozzle body of claim 2, wherein one end of the suction pipe is coupled to one end of the passage connecting member so that the passage connecting member is rotated according to the flow of the suction pipe. The suction nozzle body of claim 2 or 3, wherein the rotary roller is installed at one side of the flow path connecting member. The suction nozzle body of claim 4, wherein the rotary roller is fixed to the lower end of the flow path connecting member and protrudes downward through the lower case.