CN205913293U - Connecting structure for pipe openings - Google Patents

Abstract

The utility model discloses a connecting structure for pipe openings for with the first mouth of pipe on the first part and the coaxial fixed connection of the second mouth of pipe on the second part, it includes: from the outside axially extended grafting pipe of first orificial tip, from the inside axially extended recess of first orificial tip, arrange the clamp plate in the recess, press from both sides and establish the spring between the tank bottom of clamp plate and recess, be fixed in the block tongue of clamp plate front end, radially set up block the hole on the orificial pipe wall of second. The utility model discloses simple structure and convenient to use when using two mouth of pipe spares of this structural connection, can guarantee the level and smooth degree of these two mouth of pipe spare junctions, and then conveniently grip.

Description

A kind of mouth of pipe attachment structure

Technical field

This utility model is related to a kind of attachment structure for coupling together two parts, and particularly a kind of mouth of pipe connects Structure, it is used for connecting two parts with nozzle structure.

Background technology

Vacuum cleaner is typically made up of two parts: body of dust collector with dirt cup and motor, directly acts on object to be cleaned The suction nozzle (as flat suction, sofa are inhaled) of body or brush (as scrubbing brush).During use, described suction nozzle or brush are connected with body of dust collector Get up, enter body of dust collector by what suction nozzle or brush were drawn from environment with dust air, and through body of dust collector After interior defecator filters, so that dust is stayed in dirt cup and collect, and clean air is again from the air outlet of body of dust collector Enter environment.

In order that vacuum cleaner can adapt to the cleaning of various environment, on the market the body of all of vacuum cleaner and suction nozzle (or Brush) between be the split-type structural of detachable connection.Therebetween connected mode is as follows:

Body of dust collector carries an outwardly directed blast pipe, and the external connection end of this blast pipe is a nozzle structure, inhales The tail end of head or brush is also a nozzle structure, and the mouth of pipe upper band of the mouth of pipe of air intake tube end and suction nozzle (or brush) end There is clamp button of the spring locking member.During assembling, the mouth of pipe of air intake tube end is directed at suction nozzle or the mouth of pipe of brush end is plugged in together Afterwards, by described clamp button of the spring locking member, the two is being locked, the junction of the two is held usually as during user dust suction The handle held uses.After promoting or pressing the unlocking knob on clamp button of the spring locking member, just the two can be separated.

However, the clamp button of the spring locking member not only complex structure being used on existing vacuum cleaner, using not convenient, and It protrudes from the blast pipe end mouth of pipe and the outer peripheral face of suction nozzle (or brush) the end mouth of pipe, leads to user gripping this mouth of pipe even The place of connecing and when carrying out dust suction, grip feeling is very poor, easily causes hand fatigue, being smoothed out of impact dust suction work.

And, in prior art all there is above-mentioned asking in the essentially all of clamp button of the spring locking member for connecting nozzle structure Topic.

Utility model content

This utility model purpose is: for the problems referred to above, provides a kind of structure mouth of pipe simple and easy to use to connect knot Structure, when connecting two mouth of pipe parts using this structure, ensure that the smoothness of this two mouth of pipe part junctions, and then convenient gripping.

The technical solution of the utility model is: a kind of mouth of pipe attachment structure, for by first mouth of pipe on first component and Second mouth of pipe on second component is fixedly and coaxially connected, and this mouth of pipe attachment structure includes:

The insertion pipe axially outwardly extending from the end of described first mouth of pipe, and the external diameter of this insertion pipe is less than described the The external diameter of one mouth of pipe；

The groove axially inwardly extending from the end of described first mouth of pipe, and this groove is located at the outer of described first mouth of pipe On wall；

It is arranged in the pressing plate in described groove, this pressing plate is fixedly connected in the rearward end of described first mouth of pipe axial direction On described first mouth of pipe；

It is folded in the spring between described pressing plate and the bottom land of described groove, when described spring is compressed in short-term, this spring Described pressing plate is applied with described first pipe mouth with outside elastic force in the radial direction；

Block tongue, this block tongue is fixed on the leading section in described first mouth of pipe axial direction for the described pressing plate；And

The hole clipping being radially opened on the tube wall of described second mouth of pipe and matching with described block tongue；

After the completion of assembling, described insertion pipe is plugged in described second mouth of pipe, and the outer wall of described insertion pipe with described The inwall of second mouth of pipe is connected, described block tongue stretch into described second in the mouth of pipe and with described hole clipping clamping.

This utility model, on the basis of technique scheme, also includes following preferred version:

The external diameter of described first mouth of pipe and second mouth of pipe is equal；After the completion of assembling, described first mouth of pipe and second mouth of pipe Outer tube wall flush arrangement.

After the completion of assembling, described pressing plate is housed in described groove completely.

After the completion of assembling, the outside wall surface flush arrangement of the upper surface of described pressing plate and described first mouth of pipe.

It is provided with, at the aperture of described second mouth of pipe, the slot to make way stretching into for described block tongue.

Described insertion pipe is coaxially arranged with described first mouth of pipe.

Described insertion pipe is structure as a whole with described first mouth of pipe, and described pressing plate is structure as a whole with described block tongue.

Described pressing plate is provided with anti-skidding convex button in the outer surface of described first pipe mouth radial direction.

Described first component is the blast pipe of vacuum cleaner, and described second component is suction nozzle or the brush of vacuum cleaner.

Described first component is the blast pipe of vacuum cleaner, and described second component is pneumatic hair-cutting head.

The utility model has the advantages that: this utility model this mouth of pipe attachment structure, structure is simple and easy to use, uses When this structure connects two mouth of pipe parts, ensure that the smoothness of this two mouth of pipe part junctions, and then convenient gripping.

Brief description

Below in conjunction with the accompanying drawings and embodiment is further described to this utility model:

Fig. 1 is the perspective view of the application pneumatic hair cutter of this utility model this mouth of pipe attachment structure；

Fig. 2 is the front view of the application pneumatic hair cutter of this utility model this mouth of pipe attachment structure；

Fig. 3 is the sectional view of the application pneumatic hair cutter of this utility model this mouth of pipe attachment structure；

Fig. 4 is the blast pipe external connection end of vacuum cleaner in the application pneumatic hair cutter of this utility model this mouth of pipe attachment structure Structural representation；

Wherein: 1- first component, 1a- first mouth of pipe, 2- second component, 2a- second mouth of pipe, 3- insertion pipe, 4- groove, 5- Pressing plate, 6- spring, 7- block tongue, the anti-skidding convex button of 8-, 9- hole clipping.

Specific embodiment

Fig. 1～Fig. 4 shows a specific embodiment of this utility model this mouth of pipe attachment structure, and this structure is used for will The second mouth of pipe 2a on the first mouth of pipe 1a and second component 2 on first component 1 is fixedly and coaxially connected.This mouth of pipe in the present embodiment Attachment structure is particularly applicable on a kind of pneumatic hair cutter, and this pneumatic hair cutter mainly has vacuum cleaner and pneumatic hair-cutting cutter head two Divide and constitute, described first component 1 is the blast pipe (not drawing completely in the structure chart of blast pipe) of vacuum cleaner, described second component 2 is pneumatic hair-cutting head.

During use, pneumatic hair-cutting head is connected with the blast pipe of vacuum cleaner, the distinguished and admirable drive of the negative pressure that vacuum cleaner produces is pneumatic Hair-cutting head makees hair-cutting action, and the hair cut is sucked in the dirt cup of vacuum cleaner.

The present embodiment this mouth of pipe attachment structure includes: the grafting axially outwardly extending from the end of described first mouth of pipe 1a Pipe 3, the groove 4 axially inwardly extending from the end of described first mouth of pipe 1a, it is arranged in the pressing plate 5 in described groove 4, spring 6, Be fixed on the block tongue 7 of described pressing plate 5 front end, be radially opened on the tube wall of described second mouth of pipe 2a and with described block tongue 7 phase The hole clipping 9 joined.Wherein:

The external diameter of insertion pipe 3 is less than the external diameter of the first mouth of pipe 1a, and insertion pipe 3 is structure as a whole with the first mouth of pipe 1a, The two is coaxially arranged, and is plastic, the two integrated injection molding.

Groove 4 is located on the outer wall of the first mouth of pipe 1a, and that is, the depth of groove 4 is from the outside wall surface of the first mouth of pipe 1a radially-inwardly Extend, rather than extend radially outwardly from the internal face of the first mouth of pipe 1a.

Pressing plate 5 is fixedly connected on the first mouth of pipe 1a in the rearward end of described first mouth of pipe 1a axial direction, and pressing plate 5 Remainder separates arrangement with first mouth of pipe.

Spring 6 is folded between pressing plate 5 and the bottom land of groove 4, and when this spring 6 is compressed in short-term, it is applied with to pressing plate 5 Radially outer elastic force, " radially " here is as reference with first mouth of pipe, and that is, spring 6 is applied with to pressing plate 5 described One mouth of pipe 1a outside elastic force in the radial direction.

Block tongue 7 is fixed on the leading section in described first mouth of pipe 1a axial direction for the pressing plate 5.The two is structure as a whole, and It is plastic, integrated injection molding.

Hole clipping 9 radial direction is opened on the tube wall of described second mouth of pipe 2a, and that is, hole clipping extends radially through the tube wall of second mouth of pipe.And And the structure of this hole clipping 9 is matched with described block tongue 7.

When using this structure, described first mouth of pipe 1a and the second mouth of pipe 2a is linked together and complete assembling after, described insert Adapter 3 is plugged in described second mouth of pipe 2a, and the inwall of the outer wall of described insertion pipe 3 and described second mouth of pipe 2a is against even Connect, described block tongue 7 stretch into described second in mouth of pipe 2a and with the clamping of described hole clipping 9.

When the blast pipe of described vacuum cleaner and pneumatic hair-cutting head are not connected with and process released state, pressing plate 5 is in spring 6 The radial direction of elastic force effect lower edge first mouth of pipe 1a is turned-out to go to certain position.During connection, then along the footpath of the first mouth of pipe 1a Press inward against pressing plate 5 (the pressurized shortening of spring 6) to direction, drive block tongue 7 also to move inward along the radial direction of the first mouth of pipe 1a, Then insertion pipe 3 and block tongue 7 are inserted to the second mouth of pipe 2a, unclamp pressing plate 5, after block tongue 7 and hole clipping 9 connect and fix, just complete The connection of the blast pipe of vacuum cleaner and pneumatic hair-cutting head.As need separate the blast pipe of vacuum cleaner and pneumatic hair-cutting head, then inwardly Pressing pressing plate 5 makes block tongue 7 depart from hole clipping 9, then reversely pulls the blast pipe of vacuum cleaner and pneumatic hair-cutting head, the two is taken apart.

As shown in figure 3, in order to ensure insertion pipe 3 with the splicing stability of the second mouth of pipe 2a it is ensured that the two is mutually close to, this Example is provided with the slot to make way (in figure does not mark) stretching into for block tongue 7 at the aperture of described second mouth of pipe 2a.

In order to further enhance gripping feel and the comfortableness of the first mouth of pipe 1a and the second mouth of pipe 2a joint, this example is by One mouth of pipe 1a and the second mouth of pipe 2a is arranged to equal outer diameter value, and after the completion of assembling, the first mouth of pipe 1a's and the second mouth of pipe 2a is outer Tube wall flush arrangement.And after the completion of assembling, described pressing plate 5 is housed in described groove 4 completely, to prevent pressing plate 5 radially Protrude from the first mouth of pipe 1a outer surface and affect the gripping comfort level of user.Pressing plate 5 mentioned here is housed in groove 4 completely Interior, it is the first mouth of pipe 1a outer surface that the upper surface of acupressure probe is not higher than, put down including pressing plate upper surface and the first mouth of pipe outer surface Neat situation (the gripping comfort level of this situation is optimal).

In the present embodiment, described pressing plate 5 is provided with anti-skidding convex button in the outer surface of described first mouth of pipe 1a radial direction 8, described pressing plate 5 is pressed with convenient use person, and then facilitates connection and the dismounting of first mouth of pipe and second mouth of pipe.And this enforcement In example, this anti-skidding convex button is structure as a whole with pressing plate 5.

Certainly, this mouth of pipe attachment structure this is not limited to apply on this pneumatic hair cutter it is also possible to apply In conventional cleaners or other equipment, when it is applied in conventional cleaners, described first component 1 is the air intake of vacuum cleaner Pipe, described second component 2 is suction nozzle or the brush of vacuum cleaner.

Above-described embodiment is only that technology design of the present utility model and feature are described, its object is to allow people will appreciate that Content of the present utility model is simultaneously implemented according to this, can not limit protection domain of the present utility model with this.All new according to this practicality Equivalent transformation or modification that the spirit of type main technical schemes is done, all should cover protection domain of the present utility model it Interior.

Claims (10)

1. a kind of mouth of pipe attachment structure, for by second on first mouth of pipe (1a) and second component (2) on first component (1) The mouth of pipe (2a) is fixedly and coaxially connected it is characterised in that this mouth of pipe attachment structure includes:

The insertion pipe (3) axially outwardly extending from the end of described first mouth of pipe (1a), and the external diameter of this insertion pipe (3) is less than The external diameter of described first mouth of pipe (1a)；

The groove (4) axially inwardly extending from the end of described first mouth of pipe (1a), and this groove (4) is located at described first pipe On the outer wall of mouth (1a)；

It is arranged in the pressing plate (5) in described groove (4), this pressing plate (5) is in the rearward end of described first mouth of pipe (1a) axial direction It is fixedly connected on described first mouth of pipe (1a)；

It is folded in the spring (6) between described pressing plate (5) and the bottom land of described groove (4), when the pressurized shortening of described spring (6) When, this spring (6) is applied with described first mouth of pipe (1a) outside elastic force in the radial direction to described pressing plate (5)；

Block tongue (7), this block tongue (7) is fixed on the leading section in described first mouth of pipe (1a) axial direction for the described pressing plate (5)；And

The hole clipping (9) being radially opened on the tube wall of described second mouth of pipe (2a) and matching with described block tongue (7)；

After the completion of assembling, described insertion pipe (3) is plugged in described second mouth of pipe (2a), and the outer wall of described insertion pipe (3) Be connected with the inwall of described second mouth of pipe (2a), described block tongue (7) stretch in described second mouth of pipe (2a) and with described card Hole (9) clamping.

2. mouth of pipe attachment structure according to claim 1 it is characterised in that: described first mouth of pipe (1a) and second mouth of pipe (2a) external diameter is equal；After the completion of assembling, the outer tube wall flush arrangement of described first mouth of pipe (1a) and second mouth of pipe (2a).

3. mouth of pipe attachment structure according to claim 1 and 2 it is characterised in that: after the completion of assembling, described pressing plate (5) is complete Entirely it is housed in described groove (4).

4. mouth of pipe attachment structure according to claim 3 it is characterised in that: after the completion of assembling, the upper table of described pressing plate (5) Face and the outside wall surface flush arrangement of described first mouth of pipe (1a).

5. mouth of pipe attachment structure according to claim 1 and 2 it is characterised in that: at the aperture of described second mouth of pipe (2a) It is provided with the slot to make way stretching into for described block tongue (7).

6. mouth of pipe attachment structure according to claim 1 and 2 it is characterised in that: described insertion pipe (3) and described first pipe Mouth (1a) is coaxially arranged.

7. mouth of pipe attachment structure according to claim 1 and 2 it is characterised in that: described insertion pipe (3) and described first pipe Mouth (1a) is structure as a whole, and described pressing plate (5) and described block tongue (7) are structure as a whole.

8. mouth of pipe attachment structure according to claim 1 and 2 it is characterised in that: described pressing plate (5) is in described first mouth of pipe (1a) outer surface of radial direction is provided with anti-skidding convex button (8).

9. mouth of pipe attachment structure according to claim 1 and 2 it is characterised in that: described first component (1) is vacuum cleaner Blast pipe, described second component (2) is suction nozzle or the brush of vacuum cleaner.

10. mouth of pipe attachment structure according to claim 1 and 2 it is characterised in that: described first component (1) be vacuum cleaner Blast pipe, described second component (2) be pneumatic hair-cutting head.