CN105246599A - A dispensing wand for washing devices - Google Patents

Abstract

An extensible dispensing wand (30) for washing devices comprises at least a first tubular section (31) a first end (311) of which is connectable to a gripping and support body (20) of a supply conduit of a pressurized washing fluid and a second end (312) that is open and able to telescopically receive a second section (32) provided at an end external thereof with a dispensing nozzle, where the first section (31) comprises at an end thereof a connector (100) and the second section (32) comprises, at the end thereof, a further connector (320), which is located internally of the first section, resolvable blocking means (37) being provided to reciprocally block the first section (31) and the second section (32), characterised in that it comprises a flexible conduit (50) which connects, internally of the first section (100) of the first section, with the connector (320) of the second section, a length of the flexible conduit (50) being such as to enable formation, internally of the first section (31), of a ring-conformed loop (500) even when the second section (32) is completely extracted from the first tract (31).

Description

For the distribution rod of cleaning device

Technical field

The present invention relates to the ductile rod for liquid dispensing apparatus.

More specifically, the present invention relates to for high-pressure cleaning device, as the ductile rod of hydraulic pressure cleaning machine etc.

Background technology

Known high-pressure cleaning device or hydraulic pressure cleaning machine comprise high-pressure pump, and it is used as wash fluid, and as the source of water, the carrier pipe of wash fluid connects the flexible pipe most distributing rifle service.

Distribution rifle generally includes and arranges handled elongated main body, distributes rod and is removably connected to this handle, support distributing nozzle at its free terminal.

Distribute rifle and comprise trigger, it is positioned on handle, and activation gate, this valve enables or disables the wash fluid stream from pump to distributing nozzle.

In order to ensure the security of user, the minimum range between nozzle and trigger is generally 750mm, and this prevents or at least limits the possibility that distributing nozzle can turn to user's face.

Further, in order to various uses, such as, in order to effectively clean the surface away from user, such as, be positioned at the surface of eminence, need sufficiently long rod, to be arranged near far surface by distributing nozzle, and the pressure of fluid to be allocated can not be lost extraly.

In order to obtain these objects, use module rod, namely by the several tubular sections be connected to each other at head by snap-fitting or similar connector, wherein the first tubular sections is connected to distribution rifle, and last tubular sections is connected to distributing nozzle.

They are heavy for user to use the shortcoming of these ductile module rods, user must install or remove each tubular sections according to the distance on his surface to be processed, make that each tubular sections is transported to processing region to necessitate, thus these tubular sections can be taken immediately when needed.

The also rod of known scalable extension, it is made up of retractable supports part, and the side of support member is connected to distribution rifle, and opposite side has distributing nozzle.

The shortcoming of these rods is: need to connect the flexible pipe distributing rifle and nozzle.

When retractable supports part is in its maximum length, flexible pipe is positioned at the side of support member, and when support member is in its minimum length, or during its intermediate length, flexible pipe forms ring in the side of support member, and this ring is roughly arranged in perpendicular by Action of Gravity Field.

This ring is that operator forms very awkward obstacle, its use that obviously restriction is excellent.

In order to eliminate this shortcoming, known scalable rod, it at least comprises the first tubular sections, first end of this tubular sections can be connected to grasping and the supportive body of the supply pipe of pressurization wash fluid, second open end of this tubular sections distributes wash fluid, wherein by insertion sealing device and decomposable hinder device, the second tubular sections telescopically is connected to first paragraph, first paragraph and second segment interfix at ideal length by sealing device and decomposable hinder device.

These scalable rods are described in the disclosures in Italian patent application RE2013A000014 of the applicant.

But they have shortcoming: in excellent use procedure, if when hinder device breaks down, under the effect of hydraulic pressure, rod is unexpected extends to its maximum length, causes danger to nigh user or people.

The object of the invention is to the shortcoming being eliminated above-mentioned prior art by simple, reasonable and relative inexpensive scheme.

By the feature of the present invention that independent claims are recorded, this object can be obtained.Subclaims describe the preferred and/or particularly advantageous aspect of the present invention.

Summary of the invention

Particularly, the invention discloses the rod of the scalable extension for cleaning device, it comprises at least the first tubular sections, and the first end of this first tubular sections can be connected to grasping and the supportive body of the feed line of pressurization wash fluid; And telescopically inserts the second segment of the first tubular sections.

Flexible hydraulic tube connector connects the upstream termination with the second segment of grip body.

When second segment inserts in first paragraph completely, flexible pipe themselves bend, thus the folding position being arranged on the first paragraph inside being positioned at second segment side, form annular ring.

By having this structure, when pressure (hydraulic) water is introduced in flexible pipe, if each section no longer limited each other, flexible pipe will be arranged on the folding position of the side of first paragraph naturally, pulls out the second segment of first paragraph inside.

What also need to eliminate is needs to the sliding sealing device between first and second sections, and it is for fine structure and be worn.

The present invention includes the decomposable hinder device between first and second sections, for rod is fixed on ideal length; When rod in use time, this hinder device continues to oppress and prevents second segment from first paragraph direction out; If hinder device breaks down, rod is automatically set as the structure of its minimum length.

Hinder device at least comprises joint element, and it is connected to first paragraph, and optionally can be engaged to and arrange and an outer casing base in axially spaced multiple outer casing bases along second segment.

Like this, the axial direction of second segment can be hindered along first paragraph on multiple position, make it possible to the whole length regulating and distributing rod as required.

Hook elements securely translation is connected to the end of the first paragraph receiving second segment.

Hook elements advantageously comprises at least one button, it is inserted in the end outwardly open shell bracket (housingcradle) that are formed in outer tube slidably, this button comprises at least one moveable engagement accessory, it can move to the disengaging configuration relative with elastic device from bonding station, wherein insert at least one outer casing base in this engagement accessory of bonding station, do not interact with outer casing base in this engagement accessory of disengaging configuration.

Thanked to the program, according to operational requirements, by immediately extending or shorten the operation distributing rod, can make to become easily relative to the obstruction of first paragraph and release second segment, quick and can repeat.

Another advantage of the present invention is, defines multiple outer casing base by shelf, and this shelf has the longitudinal axis of the longitudinal axis being parallel to first paragraph, and this shelf extends beyond a part for the first paragraph between the first end and the second end.

Thank to the program, make the realization of outer casing base quick especially and efficient.

Accompanying drawing explanation

With reference to the accompanying drawing in accompanying drawing table, by reading the description of following non-limiting example, other features and advantages of the present invention can be understood.

Fig. 1 is according to the side view being in the rod of retraction structure of the present invention;

Fig. 2 is the side view of the rod be in Fig. 1 of extended configuration;

Fig. 3 is the axial cross section of Fig. 1;

Fig. 4 is the axial cross section of Fig. 2;

Fig. 5 is the expansion side view being with handled rod.

Detailed description of the invention

With reference to accompanying drawing, Reference numeral 10 represents the entirety being connected to the distribution rifle of the wash liquid of the transfer pump of wash liquid, wherein because transfer pump is that known type is so not shown.

Distribute rifle 10(as shown in Figure 5) comprise elongated hollow main body 20, its end is provided with handle 21, this elongated hollow main body 20 comprises the jointing 200 and trigger 22 with pressure (hydraulic) water supply, and it can start the closedown of joint valve and open, and this is known to those skilled in the art.

At the opposing end portions of handle 21, elongate body 20 comprises common connector as known to those skilled, such as socket type, and it is equipped with and is clasped or screw-type Quick Connect Kit.

Distribute rifle 10 and comprise the excellent 30(of distribution as Figure 1-4), it axially extends to elongate body 20, and is inserted in connector, and supports distributing nozzle 40 at its opposing end portions, will be clearer by following description.

Rod 30 comprises hollow outer first paragraph 31, and be placed with the first connector 100 at its first end 311 place, be such as convex-type, it is sealably engaged to the connector of the end being arranged on elongate body 20.

Second end 312 of first paragraph 31 is unlimited, to insert by flexible the second segment 32 receiving rod 30.

The inner chamber of first paragraph 31 comprises long zone line 314, and it has the inside diameter of the diameter being greater than tapered zone, and wherein the second segment 32 of rod is positioned at tapered zone.

Multiple outer casing base 325 is formed on the cylindrical wall of second segment 32, and arranges along the dotted line of the longitudinal axis being parallel to first paragraph, and be spaced apart from each other (such as equidistant).

In the embodiment shown, outer casing base 326 is defined the outer wall to second segment 32, and is positioned at (bottom in the drawings) on single arc section of outer wall by (or the under any circumstance fixing) shelf 327 be made up of single-piece.

In fact, shelf 327 is made up of multiple arch teeth of the longitudinal axis both sides being positioned at second segment 32, between multiple arch tooth, define outer casing base 326.

But also can define shelf 327 by multiple round tooth, multiple round tooth development is more than whole section of the second cylindrical segment.

Second segment 32 has tube axial, and comprises the first end being inserted into first paragraph 31, and it is provided with the first connector 320; And the second relative free terminal, it comprises such as telescopic second connector 321, and is equipped with snap device, and distributing nozzle 40 is removably connected to this second connector 321.

Flexible pipe 50 hydraulic packing the first paragraph 31 that is connected to end connector 100 and be fixed to the connector 320 of end of second segment 32 of first paragraph 31 inside.

The length of flexible pipe is set to when second segment 32 is extracted out completely from first paragraph 31, and pipe 50 forms the annular ring 500 closed.

When in second segment 32 completely retraction first paragraph 21, pipe 50 still bends to ring, is arranged on the side of second segment 32.

By having this structure of flexible pipe, make the hydraulic pressure of its inside that ring 500 is expanded, thus regain the second segment of first paragraph inside subsequently.

Particularly, second segment 32 comprises decomposable hinder device, and it can hinder first paragraph 31 and second segment 32 mutually.

Particularly, second segment 32 temporarily can be hindered desirable centre position between two terminal positions relative to first paragraph 31 by decomposable hinder device.

Decomposable hinder device comprises at least one joint element 37, and it is connected to first paragraph 31, and can optionally with axially engage along in the isolated outer casing base 326 of second segment 32.

Particularly, as shown in Figures 3 and 4, joint element 37 comprises button 371, and it is slidably inserted in the neighbouring shell bracket formed of end 312 of first paragraph 31.

Button 371 comprises engagement accessory 372 further, and it stretches out (roughly rectangular with button) from the lower wall of button and is inserted in the through hole of the lower wall of shell bracket.

Compress Spring 375 is between the bottom of shell bracket and its lower wall of button 371() between, Compress Spring 375 is such as spiral helicine, and is inserted on bolt 365, and this bolt 365 rises from shell bracket lower wall and keeps bonding station.

In fact, button 371 can move to disengaging configuration from bonding station (as shown in Figures 3 and 4), be inserted at least one outer casing base 326 of bonding station, disengaging configuration is relative with the elastic force that Compress Spring applies, and this elastic force is tended to make button 371 return bonding station.

The present invention of design like this can carry out various modifications and variations, and these all will fall in concept of the present invention.

Further, all details are replaced by other technologies equivalent element.

In fact, under the prerequisite not departing from scope, any material and possible shape and size can be used as required.

Claims (5)

1. ductile distribution rod (30) for cleaning device, it at least comprises the first tubular sections (31), first end (311) of this first tubular sections can be connected to the grasping of supply pipe and also can stretch receiving second segment (32) of second end (312) of described first tubular sections of supportive body (20) for opening wide of pressurization wash fluid, described second segment (32) can be connected to distributing nozzle (40) in the end of the outside of described first paragraph, wherein said first paragraph (31) comprises the connector (100) being positioned at the first end described in it, described second segment (32) comprises another connector (320) being positioned at its inside end, decomposable hinder device (37) is set to reciprocally hinder described first paragraph (31) and described second segment (32), it is characterized in that, described ductile rod (30) comprises flexible pipe (50), it connects the described connector (100) of described first paragraph (31) and another connector described of described second segment (32) in the inside of described first paragraph (31), described flexible pipe (50) though length be set to when described second segment (32) pulls out from described first paragraph (31) completely, also annular ring (500) can be formed in the inside of described first paragraph (31).

2. rod according to claim 1 (30), it is characterized in that, described decomposable hinder device comprises at least one joint element (37), it is connected to described first paragraph (31) and optionally can be engaged to an outer casing base (326) in multiple outer casing base (326), and the plurality of outer casing base (326) is axially spaced and arrange along described second segment (32).

3. rod according to claim 2 (30), is characterized in that, described joint element (37) is associated to described second end (312) of described first paragraph (31).

4. rod according to claim 3 (30), it is characterized in that, described joint element (37) comprises at least one button (371), in the shell bracket that described second end (312) place that this button (371) is slidably inserted into described first paragraph (31) is formed, described button (371) comprises at least one engagement accessory (372), it can move to disengaging configuration from bonding station, wherein insert at least one in described outer casing base (326) in this engagement accessory of bonding station (372), and disengaging configuration is relative with elastic device (375).

5. rod according to claim 4 (30), is characterized in that, described multiple outer casing base (326) is defined by shelf (327), and this shelf (327) extends beyond a part for described second segment (32).