CN217547919U - Bendable connecting pipe and dust collector - Google Patents

Abstract

The utility model provides a bendable connecting pipe, which comprises a coaxial first section, a hose and a second section, wherein the first section is pivotally connected with the second section, the first section pipe is provided with an axial extension part, and correspondingly, the second section is provided with a second matching part which is rotationally connected with the axial extension part; a threading through hole is formed in the rotary joint, a baffle is arranged between the threading through hole and the hose, and the baffle isolates the cable from the hose; the axial extension part and the second matching part are in inside and outside transverse overlapped matching, the axial extension part is provided with a matching groove, one end of the baffle plate is fixedly connected with the first section, the baffle plate is in matched connection with the matching groove, and the baffle plate is used as a spacer of the cable and also used as a reinforcing part of the axial extension part; the bidirectional bending design can be realized, the protection of the electrically connected cable is better, and meanwhile, the structural design of the cable protection part is beneficial to enhancing the strength of the pivoting structure; still provide a dust catcher, adopt aforementioned bendable connecting pipe.

Description

Bendable connecting pipe and dust collector

Technical Field

The utility model relates to a clean electrical apparatus technical field, specifically say a connecting pipe and dust catcher of can buckling.

Background

In order to better use the vacuum cleaner by generally connecting the working joint through the bendable connecting pipe, the prior art has proposed a bendable connecting pipe distinguished from a hose, the bendable connecting pipe being provided with a rotary joint through which a relative position between adjacent segments is changed, thereby enabling a user to control a working position of the working joint using a characteristic that the working joint rotates around the rotary joint to adjust a direction, such as a floor cleaning apparatus of an authorized bulletin number CN202020379U, comprising: a floor cleaning head; a pole connectable to the floor cleaning head and comprising two sections; a joint disposable between the two mast sections and arranged to move the two mast sections between two different angular orientations to effect angular adjustment of the joint between the two different angular positions.

Although the aforesaid patent technical solution realizes better angle change, the structure is bulky, needs to set up great space and installs the regulation structure, and in addition, this patent technical solution can't set up the hose as the intercommunication part of revolute joint department, if set up the hose, its locking structure will be unable to be suitable for, if force suitable for, need further innovation and improvement.

In order to adopt a hose, a person skilled in the art proposes, for example, a steering joint of a vacuum cleaner and a handheld vacuum cleaner, which is disclosed in publication No. CN205548452U, and the steering joint includes a first connecting pipe and a second connecting pipe which are relatively rotatably connected from one end, a bendable connecting pipe for communicating the butt ends of the first connecting pipe and the second connecting pipe which are rotatably connected, and conductive components respectively located in the first connecting pipe and the second connecting pipe and communicated with each other, wherein the bendable connecting pipe is a hose, and the other ends of the first connecting pipe and the second connecting pipe respectively connect a vacuum cleaner body of the handheld vacuum cleaner with a vacuum pipe or between the vacuum pipe and a vacuum cleaner head. The utility model discloses a steering joint's setting for hand-held type dust catcher can be fast and upright setting, and operating personnel can realize the omnidirectional dust removal of multi-angle under natural state simultaneously, very convenience, and in addition, simple structure, it is with low costs. As is apparent from the above description, although a hose is used, the problem of electrical connection is not solved, and in the case of providing a hose, it is difficult to provide an electrical connection structure.

For example, the basic idea of a foldable suction pipe for a vacuum cleaner and a vacuum cleaner having the same disclosed in publication No. CN208573597U is similar to the foregoing, in which the rotating shaft of the rotating part is offset, i.e., the rotating shaft is offset from a coaxial line of the first suction pipe 10, the bendable connecting pipe 30 and the second suction pipe 11 in a straight state, which also results in a change in the rotating characteristics, and in addition, the entire structure has a relatively large lateral volume.

The offset of the rotating shaft has an additional problem that if the rotating shaft is arranged to rotate in a forward direction and a reverse direction, the pulling depths of the hose in different directions are different during rotation, which is unfavorable for the uniformity of the tensile deformation of the hose and may cause early fatigue failure on the side with larger tensile strength.

Although the bending and locking mechanism of a dust collection hose disclosed in CN102715871A solves the problem of offset, the structure is abnormal and complicated, while the structure of a long tube of a dust collection cleaner disclosed in CN208114562U is simplified, but a sufficient space for the pressing plate 6 to be turned and opened to the outside needs to be reserved, in addition, the locking and matching position cannot be flush with the long tube of the dust collection cleaner, that is, the locking and matching position is offset relative to the axis of the long tube of the dust collection cleaner, and in addition, due to the need of the arrangement of the turning structure of the pressing plate 6 and the like, the change of the angle of the long tube of the dust collection cleaner is limited by the turning structure. In addition, the problem of electrical connection is also not solved.

According to the bendable connecting pipe, the improvement has certain difficulty, the influence factors are more, the applicant can continuously research and improve the bendable connecting pipe, and therefore the novel technical scheme of the bendable connecting pipe is provided, the novel technical scheme can realize bidirectional bending design, the protection of the electrically connected cables is good, and meanwhile the structural design of the cable protection position is beneficial to enhancing the strength of the pivoting structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the defects of the prior art are overcome, the bendable connecting pipe is provided, the bidirectional bending design can be realized, the protection of the electrically connected cable is better, and meanwhile, the structural design of the cable protection part is beneficial to enhancing the strength of the pivoting structure; still provide a dust catcher, adopt aforementioned bendable connecting pipe.

Compared with the prior art, the utility model provides a bendable connecting pipe, including coaxial first festival section, hose and second festival section, first festival section and second festival section pivotal connection, the one end and the first festival section intercommunication of hose are connected, the other end and the second festival section intercommunication of hose are connected, the one end that first festival section pipe is located second festival section one side is provided with axial extension, axial extension is two of horizontal relative setting, correspondingly, the one end that the second festival section is located first festival section one side is provided with the second cooperation portion of being connected with axial extension rotation; a threading through hole penetrating through the axial extension part and the second matching part is formed in the rotary connection part, a baffle is arranged between the threading through hole and the hose, and the baffle isolates the cable from the hose; axial extension portion and the inside and outside horizontal coincide of second cooperation portion and cooperate, the side that axial extension portion is located this one side of hose is equipped with the cooperation groove, the one end and the first festival section fixed connection of baffle, the baffle is connected with the cooperation groove cooperation, and the baffle is as the separator of cable, still regards as axial extension portion's reinforcement simultaneously.

As an improvement, the first section comprises a first sleeve and a first core, the first sleeve is connected with the first core in a sleeved mode, the second section comprises a second sleeve and a second core, the second sleeve is connected with the second core in a sleeved mode, one end of the hose is connected with the first core in a communicated mode, and the other end of the hose is connected with the second core in a communicated mode; one end of the first sleeve, which is positioned at one side of the second sleeve, is provided with two axial extension parts which are transversely arranged oppositely, and correspondingly, one end of the second sleeve, which is positioned at one side of the first sleeve, is provided with a second matching part which is rotatably connected with the axial extension parts; the one end of the baffle is fixedly connected with the first section, which means that the one end of the baffle is fixedly connected with the first core.

As a refinement, the mating groove is provided as an open groove which is substantially trumpet-shaped in transverse view, and is used for: when the first sleeve is sleeved with the first core, the baffle is inserted and matched in the opening groove of the axial extension part along the axial direction of the first sleeve along with the first core.

As a modification, the axial extension part is designed to be axially extended and reduced in width towards one side of the second section.

As an improvement, the second matching part is an integrated piece integrally formed with the second sleeve, and the axial extension part is an integrated piece integrally formed with the first sleeve.

As a modification, the first sleeve, the first core, the second sleeve and the second core are all integrally formed into a single piece.

As an improvement, each axial extension portion is provided with a matching rotating shaft protruding outwards, correspondingly, the second matching portion is provided with a matching shaft hole, the matching rotating shaft is in running fit with the matching shaft hole, and the limiting piece is used for connection limiting.

As an improvement, a guide inclined plane is arranged on the front side of the matching rotating shaft.

As an improvement, the threading through hole passes through the stopper, and the cable passes through the threading through hole to enter the inside of the axially extending portion, and is routed to the first core along the axially extending portion, and enters the first core.

As the improvement, the limiting part is in sleeve joint with the matching shaft hole.

As a modification, the second fitting portion is provided with a wire hole through which the free end of the cable is introduced into the second bushing, after which the free end is connected with the terminal and fitted into the second core.

As the improvement, the matching groove and the baffle are further connected through the clamping portion and the clamping opening in an enhanced mode.

After adopting above-mentioned structure, compare with prior art, the utility model has the advantages of it is following: can realize the design of two-way buckling, it is better to the protection of the cable of electricity connection, the structural design of cable protection department does benefit to the intensity that strengthens pivot structure simultaneously.

Compared with the prior art, the utility model discloses still provide a dust catcher, including above-mentioned connecting pipe of can buckling.

After adopting above-mentioned structure, compare with prior art, the utility model has the advantages of it is following: adopt above-mentioned connecting pipe of can buckling, can show and reduce structure complexity, in addition, be favorable to the operation convenience, reduce cost.

Drawings

Fig. 1 is a perspective view of a bendable connecting tube.

Fig. 2 is a perspective view of a bendable connecting tube with a cover plate removed.

Fig. 3 is a perspective view of fig. 2 from a top view.

Fig. 4 is a perspective view of fig. 2 with the first sleeve further removed.

Fig. 5 is a perspective view of fig. 4 with the first core further removed.

Fig. 6 is a perspective view of fig. 5 with one side of the latch tongue removed.

Fig. 7 is a perspective view of fig. 5 from a bottom perspective.

Fig. 8 is a perspective view of fig. 4 with the second sleeve further removed.

Fig. 9 is a perspective view of the first assembly.

Fig. 10 is a perspective view of the first sleeve.

Fig. 11 is a perspective view of the second sleeve.

Fig. 12 is a perspective view of the first core.

Fig. 13 is a perspective view of the first core with a button, a transverse linkage, a latch and a bezel.

Fig. 14 is a front view of the locking bolt in engagement with the lock collar.

Fig. 15 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 14.

Fig. 16 is an enlarged view of a.

Fig. 17 is a perspective view of the locking bolt.

The reference numbers indicate that 1-hose, 2-lock tongue, 3-lock disk, 4-first matching part, 5-first sleeve, 6-first core, 7-second sleeve, 8-second core, 9-axial extension, 11-threading through hole, 12-baffle, 13-matching groove, 14-button, 15-transverse linkage, 16-first matching hole, 17-first guiding inclined plane, 18-first resetting elastic component, 19-second resetting elastic component, 20-first guiding groove, 21-first guiding plane, 22-matching opening, 23-decorative cover, 24-circumferential part, 25-cable, 26-connecting rib, 27-temporary matching part, 28-clamping part, 29-matching rotating shaft, 30-matching shaft hole, 31-bayonet, 32-limiting part, 33-gland, 34-terminal, 35-guiding inclined plane, 36-lock head, 37-blocking part, 38-inner side.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

The following is a more detailed description of the present invention:

as shown in fig. 1, a bendable connecting tube is provided, in this embodiment, a locking structure is additionally provided to the bendable connecting tube, and if the locking structure is removed, the bendable connecting tube can freely rotate in two directions.

The bendable connecting pipe with the locked related structure comprises a first section, a hose 1 and a second section which are coaxial, wherein the first section is pivotally connected with the second section, one end of the hose 1 is communicated and connected with the first section, the other end of the hose 1 is communicated and connected with the second section, the first section is provided with an operating part and a bolt 2 arranged along the circumferential direction of the first section, and the operating part is used for driving the bolt 2 to move along the axial direction of the first section; the second section is provided with a lock disc 3 positioned on the side surface of the hose 1, the axis of the lock disc 3 is crossed with the coaxial line, the periphery of the lock disc 3 is provided with a first matching part 4 which can be locked/unlocked with the bolt 2, the first matching part 4 adopts a lock hole or a lock groove, and in the embodiment, the first matching part 4 adopts a lock groove. From the foregoing, the present application is an unbiased solution, and the latch bolt 2 engages with the outer periphery of the lock disk 3, so that the locking strength is high. In addition, it is not necessary for the technical feature that the axis of the lock collar 3 intersects said coaxial cross to intersect completely, but the two axes may be close to each other, which is also the case in the present application where the axis of the lock collar 3 intersects said coaxial cross.

The utility model discloses carried out ingenious design, when setting up the relevant structure of locking, can also reduce the structure complexity, be favorable to promoting compact structure nature simultaneously, be favorable to reducing horizontal volume, in addition, satisfy the not biased designing requirement of structure, in addition, be favorable to the design of tubulose simplification, that is to say, be favorable to connecting pipe circumference of can buckling not to have too many additional visible, convex constitutional part, the succinct degree of connecting pipe circumference of can buckling is higher.

As can be seen from figure 1, the bendable connecting pipe obtained under the technical scheme of the application has better transverse volume control, and is overall more regular without setting too many circumferential protruding structures or special-shaped structures or movable structures. In addition, in order to further achieve the aforementioned purpose, in a specific embodiment, the present application is designed as follows: the first section comprises a first sleeve 5 and a first core 6, the first sleeve 5 is connected with the first core 6 in a sleeved mode, the second section comprises a second sleeve 7 and a second core 8, the second sleeve 7 is connected with the second core 8 in a sleeved mode, one end of the hose 1 is communicated and connected with the first core 6, and the other end of the hose 1 is communicated and connected with the second core 8; the end of the second sleeve 7 on the side of the first sleeve 5 is provided with a locking disc 3. In this embodiment, in order to facilitate the installation and fixing of the hose 1, the first core 6 and the second core 8 are both provided with a plurality of annular connecting ribs 26.

In addition, the bolt 2 is located between the first sleeve 5 and the first core 6. Through the connection structure who utilizes first sleeve 5 and first core 6 to cup joint to solve the problem of holding, the installation problem and the direction problem that follows of spring bolt 2, can control horizontal volume like this more ingeniously, simplify the production assembly.

As shown in fig. 9 and 10, one end of the first sleeve 5 on one side of the second sleeve 7 is provided with two axially extending portions 9, the two axially extending portions 9 are transversely arranged oppositely, and correspondingly, one end of the second sleeve 7 on one side of the first sleeve 5 is provided with a second matching portion which is rotatably connected with the axially extending portions 9, and the rotating axis of the rotatable connection is the same as the axis of the lock disc 3. In order to realize the rotation connection, each axial extension portion 9 is provided with a matching rotating shaft 29 protruding outward, correspondingly, the second matching portion is provided with a matching shaft hole 30, the matching rotating shaft 29 is in rotation matching with the matching shaft hole 30, and then the limiting member 32 is used for connecting and limiting through a screw, so that the rotation matching is completed. In order to make cooperation pivot 29 and cooperation shaft hole 30 cooperate easily, this application is equipped with direction inclined plane 35 at cooperation pivot 29 front side, like this, when first sleeve pipe 5 and second sleeve pipe 7 assemble through axial phase to each other, through this direction inclined plane 35 for cooperation pivot 29 cup joints the cooperation with cooperation shaft hole 30 more easily, and this design also is favorable to the easy to assemble that follows. Thus, the pivotal connection of the first section to the second section is achieved by the rotational engagement of the first sleeve 5 and the second sleeve 7.

From the above, the first sleeve 5, the second sleeve 7, the first core 6 and the second core 8 respectively perform their own functions, that is, no additional arrangement is required for the first core 6 and the second core 8, so that the structure is simplified on one hand, and the convenient assembly of the structure is facilitated on the other hand.

In order to further reduce the transverse width and simplify the structure, the second matching parts are directly used as the lock discs 3, wherein at least one second matching part is used as the lock disc 3, in the embodiment, the two second matching parts are both the lock discs 3, and refer to fig. 11, so that the locking force is more balanced and the locking is more reliable.

In this example, as shown in fig. 10 and 11, the second engagement portion is formed as a single piece integrally with the second sleeve 7, and the axially extending portion 9 is formed as a single piece integrally with the first sleeve 5. Like this, need not concatenation or connection, but integrative, structural strength is better on the one hand, and on the other hand outward appearance is regular, on the other hand, convenient production again, integrated into one piece for example mould plastics integrated into one piece.

For better integrity, the first sleeve 5, the first core 6, the second sleeve 7 and the second core 8 are all integrally formed one piece. Like this, need not concatenation or connection, but integrative, structural strength is better on the one hand, and on the other hand facilitates production, integrated into one piece for example mould plastics integrated into one piece.

Different from prior art, because the innovative design of this application, so integrated into one piece's structural design can be applicable to this application, and adopts integrated into one piece's structural design, and the performance and the production assembly convenience that further promote this application in turn are supplemented with each other to two technologies again.

The rotary joint is provided with a threading through hole 11 penetrating through the axial extension part 9 and the second matching part, a baffle plate 12 is arranged between the threading through hole 11 and the hose 1, the baffle plate 12 isolates the cable 25 from the hose 1, and the baffle plate 12 can be an independent part or can be integrally formed with the first core 6. As can be seen from the foregoing, a limiting member 32 is further provided, so that the threading through hole 11 further passes through the limiting member 32, and the cable 25 passes through the threading through hole 11 to enter the inside of the axial extension portion 9, and then is routed to the first core 6 along the axial extension portion 9 and enters the first core 6.

Due to the above design, the bendable connecting pipe of the present application can be installed conveniently, specifically, one end of the cable 25 is connected to the first core 6, the other end is a free end, and then the first core 6, the operating portion, the latch 2, the baffle 12, the hose 1, and the second core 8 are connected to form a first assembly, referring to fig. 9, but it should be noted that, at this time, the free end is not connected to the terminal 34, or is a free end, then the first assembly is respectively sleeved with the first sleeve 5 and the second sleeve 7, when the first sleeve 5 is sleeved, the free end needs to be firstly passed through from the axial extension portion 9, and after being passed, the first sleeve 5 and the first core 6 are completely sleeved in the axial direction, and by means of the complete sleeve in the axial direction, the baffle 12 is axially inserted and matched with the following opening slot, so that, the cable 25 is well protected between the baffle 12 and the axial extension portion 9, meanwhile, the cable 25 passes through the axial extension portion 9, no hole needs to be opened on the baffle 12 for avoiding the cable 25 for the axial insertion fit, then, when the first sleeve 5 and the second sleeve 7 are connected, the free end needs to further pass through the matching shaft hole 30 and the limiting piece 32, because the limiting piece 32 is in sleeve fit with the matching shaft hole 30, the free end passes through the limiting piece 32 and then simultaneously passes through the matching shaft hole 30, then the free end is led into the second sleeve 7 by using the wire routing hole arranged at the second matching portion, then the free end is connected with the terminal 34 and assembled into the second core 8, then the hose 1 is loosened, so that the second core 8 can be sleeved into the second sleeve 7, then the pressing cover 33 is used for limiting and fixing, and thus the second core 8 and the second sleeve 7 are relatively fixed, therefore, the connection between the first component and the first sleeve 5 and the second sleeve 7, the rotation connection between the first sleeve 5 and the second sleeve 7, the connection between the limiting part 32 and the connection between the cables 25 can be smoothly solved, and the installation is more convenient and the efficiency is higher. The design is ingenious, compact structure and transverse width control are facilitated, complex installation is avoided, and outstanding substantial specific and remarkable technical effects are achieved.

After the installation, the decorative cover 23 is connected to the second matching part, so that the interior of the box body is protected on one hand, and the box body is more attractive on the other hand.

In this example, the axially extending portion 9 and the second engaging portion are overlapped and engaged in the inner and outer lateral directions, the side surface of the axially extending portion 9 on the side of the hose 1 is provided with an engaging groove 13, one end of a baffle 12 is fixedly connected to the first core 6, the baffle 12 is engaged and connected to the engaging groove 13, and the baffle 12 serves as a spacer of the cable 25 and also as a reinforcing member of the axially extending portion 9. In this way, the problems of cable 25 protection and reinforcement of the axial extension 9 are solved while the structure is compact, and the control of the transverse width is extremely advantageous. In this example, the first core 6 is provided with the circumferential portion 24, the circumferential portion 24 is provided with the matching opening 22, and one end of the baffle 12 is fixedly connected with the matching opening 22, so that the structural strength is higher, and the installation is facilitated.

As shown in fig. 10, the fitting groove 13 is provided as an open groove having a substantially trumpet shape in a transverse view, for: when the first sleeve 5 is fitted with the first core 6, the baffle plate 12 is inserted and fitted in the open groove of the axial extension 9 along the axial direction of the first sleeve 5 along with the first core 6. This design is more conducive to facilitating axial installation.

In order to make the connection more firm and reliable and avoid damage in long-term use in the future, as shown in fig. 10 and 13, the fitting groove 13 and the baffle plate 12 are further connected by the clamping portion 28 and the bayonet 31 in a reinforced manner, in this example, the connection design of the clamping portion 28 and the bayonet 31 should also meet the design requirement of axial assembly, so as to facilitate installation.

The axial extension 9 is of an axially extending design with a reduced width towards the second sleeve 7 side. This is beneficial to the larger rotation angle and the smaller limitation of the rotation.

The operation portion may have the following structure, but is not limited to the following structure, and any suitable structure may be applied to the present application: the operation part adopts a first moving structure that a first operation part moves transversely to drive the bolt 2 to move along the axial direction of the first section, or the operation part adopts a second moving structure that a second operation part moves axially to drive the bolt 2 to move along the axial direction of the first section.

In this example, as shown in fig. 8 and 13, the first moving structure mainly includes a button 14 and a transverse link member 15, the first sleeve 5 is provided with a first matching hole 16 movably matched with the button 14, the transverse link member 15 spans the circumference of the first core 6, the button 14 is transversely connected with the transverse link member 15, a first guide structure is arranged between the first sleeve 5 and the first core 6, the first guide structure is in guiding fit with the transverse link member 15, the transverse link member 15 is provided with a first guide inclined surface 17, the bolt 2 is provided with a second guide inclined surface in sliding fit with the first guide inclined surface 17, the button 14 is used for driving the transverse link member 15 to move transversely, the transverse movement enables the first guide inclined surface 17 to drive the second guide inclined surface to move axially, and the axial movement can drive the bolt 2 to move along the axial direction of the first section. Therefore, the structure is simple, compact, stable and reliable, and the transverse width can be better controlled.

In this example, the first guide structure adopts the first guide groove 20, so that the structure is simple and reliable.

As shown in fig. 5, 6, and 7, the present application further includes a first elastic restoring element 18, where the first elastic restoring element 18 is located in the circumferential direction of the first core 6 and is arranged along the axis direction of the first segment, one end of the first elastic restoring element 18 is limited, the other end of the first elastic restoring element is connected to the bolt 2 and can move together with the bolt 2, and the first elastic restoring element 18 is used to drive the bolt 2 to restore to the second sleeve 7 side. Thus, when the force of pressing the button 14 is removed, the bolt 2 can reset itself, and the button 14 and the transverse linkage 15 are driven to reset.

In order to achieve better resetting and reduce the requirement on the elasticity of the first resetting elastic member 18, the application further includes a second resetting elastic member 19, the second resetting elastic member 19 is located between the button 14 and the first core 6, one end of the second resetting elastic member 19 is limited, the other end of the second resetting elastic member is connected with the button 14 or the transverse linkage member 15 or both the button 14 and the transverse linkage member 15, the second resetting elastic member 19 is used for driving the button 14 and the transverse linkage member 15 to reset towards the outside, in this example, the transverse linkage member 15 is an inverted U-shaped member, the bottom of the transverse linkage member is connected with the button 14, and the other end of the second resetting elastic member 19 is connected with the bottom.

A second guide structure is arranged between the first sleeve 5 and the first core 6, the second guide structure is in guide fit with the bolt 2, and the second guide structure is used for guiding the bolt 2 to move along the axial direction of the first section. The design makes the movement of the bolt 2 more stable and accurate, and is beneficial to locking and unlocking. The second guiding structure in this case uses a first guiding surface 21, as shown in fig. 12, in which case the first guiding surface 21 is formed by a plurality of surfaces in the axial movement path, thus providing a better guiding action.

The operation portion also can adopt the second to remove the structure, for example the second removes the structure and includes axial displacement sleeve pipe and transverse member of transverse connection in axial displacement sleeve pipe, first sleeve pipe 5 cup joints the cooperation with the axial displacement sleeve pipe, first sleeve pipe 5 is equipped with the second mating holes of clearance fit transverse member, the axial extension setting of first sleeve pipe 5 is followed to the second mating holes, the transverse member can follow the axial activity of first sleeve pipe 5 in the second mating holes, the transverse member is connected with spring bolt 2, the axial displacement sleeve pipe drives spring bolt 2 and removes along the axis direction of first section through the transverse member. The design is thicker in the transverse direction, but the design of the convex button 14 is not needed in the circumferential direction, and the circumferential direction is more regular.

As shown in fig. 11, the first engaging portion 4 has a deep depth, and can rotate only when the lock tongue 2 needs to be withdrawn by manually pressing the button 14, and meanwhile, the present application further has a temporary engaging portion 27 with a shallow depth, and two sides of the temporary engaging portion are provided with guiding portions, so that when the first sleeve 5 and the second sleeve 7 are relatively forcibly rotated, the lock tongue 2 can also rotate, that is, the lock tongue 2 is automatically withdrawn, and therefore, the temporary engaging portion 27 is a gear structure, in this example, each lock disc 3 is provided with three temporary engaging portions 27, and the first engaging portion 4 and the three temporary engaging portions 27 are sequentially arranged around the periphery of the lock disc 3, thereby providing functions of one locking gear and three adjusting gears.

The utility model provides a connecting pipe of can buckling is just reversing, and turned angle is great.

This application still has an additional technical consideration, particularly, adopt the connecting pipe of can buckling of this application, when the user uses, there is certain power between spring bolt 2 and the first cooperation portion 4, along with different users, the power is different, in case power is too big, then can lead to spring bolt 2 and the skew of backward transversely misplacing after the cooperation of first cooperation portion 4, therefore, be equipped with horizontal limit structure between spring bolt 2 and the first cooperation portion 4 of this application, this horizontal limit structure is used for limiting spring bolt 2 and the skew of backward horizontal one side dislocation of the cooperation of first cooperation portion 4 at least.

In the present embodiment, the lateral limiting structure is used to limit the lateral offset of the latch bolt 2 after engaging with the first engaging portion 4. Therefore, different users can use the lock bolt 2 effectively, and the use reliability of the lock bolt can be effectively guaranteed, so that the dislocation fault is avoided.

As shown in fig. 11, 14, 15, 16 and 17, the locking bolt 2 is provided with a locking head 36, one side of the first matching portion 4, which is located on the hose, is provided with a blocking portion 37, and after the locking bolt 2 is matched with the first matching portion 4, an inner side surface 38 of the locking head 36 is blocked by the blocking portion 37. Simple structure like this is favorable to the cooperation of 2 axial displacement of spring bolt in addition, convenient assembly.

As described above, the lock disk 3 is further provided at the outer periphery thereof with a temporary engagement portion 27 that can be locked/unlocked with the lock tongue 2, and the temporary engagement portion 27 is also provided with the above-described stopper portion 37 so that a dislocation failure does not occur at the temporary engagement portion 27.

Although other transverse limiting structures exist, which are not examples, the transverse limiting structure has the advantages of simple structure, small volume, stability and reliability.

The bendable connecting pipe can be used for dust collectors in the prior art, and can be handheld dust collectors, horizontal dust collectors and the like. The bendable connecting pipe can be used in one or more than one mode and can be configured according to specific use design requirements.

In understanding the present invention, if necessary, the above structure can be understood together with other embodiments/drawings, and detailed description is omitted here.

The above description is only an illustrative embodiment of the present invention, and therefore all equivalent changes or modifications made by the structure, features and principles of the present invention are included in the protection scope of the present invention.

Claims (13)

1. A bendable connecting pipe comprises a coaxial first section, a hose and a second section, wherein the first section is in pivot connection with the second section, one end of the hose is communicated and connected with the first section, and the other end of the hose is communicated and connected with the second section; a threading through hole penetrating through the axial extension part and the second matching part is formed in the rotary connection part, a baffle is arranged between the threading through hole and the hose, and the baffle isolates the cable from the hose; axial extension portion and the inside and outside horizontal coincide of second cooperation portion and cooperate, the side that axial extension portion is located this one side of hose is equipped with the cooperation groove, the one end and the first festival section fixed connection of baffle, the baffle is connected with the cooperation groove cooperation, and the baffle is as the separator of cable, still regards as axial extension portion's reinforcement simultaneously.

2. The bendable connecting tube according to claim 1, wherein the first segment comprises a first sleeve and a first core, the first sleeve is sleeved with the first core, the second segment comprises a second sleeve and a second core, the second sleeve is sleeved with the second core, one end of the hose is connected with the first core in a communicating manner, and the other end of the hose is connected with the second core in a communicating manner; one end of the first sleeve, which is positioned at one side of the second sleeve, is provided with two axial extension parts which are transversely arranged oppositely, and correspondingly, one end of the second sleeve, which is positioned at one side of the first sleeve, is provided with a second matching part which is rotatably connected with the axial extension parts; the one end of the baffle is fixedly connected with the first section, which means that the one end of the baffle is fixedly connected with the first core.

3. A bendable connecting pipe according to claim 2, wherein the fitting groove is provided as an open groove which is substantially trumpet-shaped in a transverse view, and is used for: when the first sleeve is sleeved with the first core, the baffle is inserted and matched in the opening groove of the axial extension part along the axial direction of the first sleeve along with the first core.

4. The bendable connecting pipe according to claim 1, wherein the axial extension is designed to be axially extended with a width reduced toward one side of the second segment.

5. The foldable connecting tube of claim 2, wherein the second fitting is a single piece with the second sleeve and the axial extension is a single piece with the first sleeve.

6. The foldable connecting tube of claim 2, wherein the first sleeve, the first core, the second sleeve and the second core are all integrally formed as a single piece.

7. The bendable connecting pipe according to claim 1 or 2, wherein each of the axial extending portions is provided with a fitting rotating shaft protruding outward, and correspondingly, the second fitting portion is provided with a fitting shaft hole, and the fitting rotating shaft is rotatably fitted with the fitting shaft hole and connected and limited by a limiting member.

8. The bendable connecting tube according to claim 7, wherein a guide slope is provided on the front side of the fitting rotation shaft.

9. The bendable connecting pipe according to claim 7, wherein the threading through hole passes through the stopper, and the cable passes through the threading through hole into the inside of the axial extending portion, and is routed along the axial extending portion to the first core body and into the first core body.

10. The foldable connecting tube of claim 9, wherein the limiting member is fit with the fitting hole.

11. The bendable connecting tube according to claim 2, wherein the second fitting part is provided with a wire hole through which a free end of the cable is introduced into the second bushing, and then the free end is connected with the terminal and fitted into the second core.

12. The bendable connecting pipe according to claim 1, wherein the fitting groove is connected with the baffle plate by a clamping portion and a bayonet.

13. A vacuum cleaner using the bendable connecting pipe of any one of claims 1 to 12, wherein the vacuum cleaner comprises the bendable connecting pipe.

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