Dust collector elbow and processing technology thereof

Abstract

The invention relates to a dust collector elbow and a machining process thereof, and relates to the technical field of dust collector accessories. The device comprises an upper rotating pipe body and a lower rotating pipe body which are connected through a hose, and temporary locking in a coaxial state is achieved through a lock catch assembly. The lock catch assembly is composed of a lock plate, a movable lock catch, a locking elastic piece and a fixed lock catch, and it is ensured that the upper rotating pipe body and the lower rotating pipe body are stably locked when being coaxial. In addition, reserved grooves are formed in the side portions of the upper rotary connector and the lower rotary connector, sealing sleeves are arranged in the reserved grooves, the ends of the hoses are in interference fit with the bearing holes through the sealing sleeves, and air tightness is guaranteed. According to the design, the use flexibility and stability of the elbow of the dust collector are effectively improved, the assembly process is simplified, the reliability of a product is improved, and the service life of the product is prolonged.

Description

Technical Field

[0001] The present application relates to the field of vacuum cleaner pipe accessories, and in particular to a vacuum cleaner elbow and a processing technology thereof. Background Art

[0002] Vacuum cleaners can be divided into vertical, horizontal and handheld types according to their structure. Common household vacuum cleaners are usually handheld. The working principle of a vacuum cleaner is to use an electric motor to drive the blades to rotate at high speed, generate negative air pressure in the sealed shell, and absorb dust.

[0003] The handheld vacuum cleaner in the related art usually includes a handheld part, a negative pressure pipe and a floor brush which are connected in sequence. The handheld part has a negative pressure source and an ash storage box inside. The dust under the floor brush is sucked into the ash storage box through the negative pressure pipe by the negative pressure source to complete the vacuuming work. The floor brush and the negative pressure pipe are usually movably connected to adapt to vacuuming work at different angles.

[0004] The above-mentioned related technologies have the following defects: when vacuuming the bottom space of large furniture such as sofas, although the negative pressure tube can be operated close to the ground, the corresponding handheld part can only be operated close to the ground, and the operating posture is relatively inconvenient, so it needs to be improved. Summary of the invention

[0005] In order to more conveniently vacuum the bottom space of large furniture such as sofas, the present application provides a vacuum cleaner bent pipe and a processing technology thereof.

[0006] In the first aspect, the present application provides a vacuum cleaner elbow with the following technical solution: A vacuum cleaner curved pipe comprises an upper rotating tube body and a lower rotating tube body, wherein the upper rotating tube body and the lower rotating tube body are rotationally connected to each other, the upper rotating tube body and the lower rotating tube body are communicated with each other through a hose, and a locking assembly is also provided between the upper rotating tube body and the lower rotating tube body, wherein the locking assembly is used to temporarily lock the upper rotating tube body and the lower rotating tube body in a coaxial state.

[0007] By adopting the above technical solution, the vacuum cleaner bend can keep the upper rotating tube body and the lower rotating tube body coaxial under normal conditions, so that the user can perform vacuuming operations in a standing state. When it is necessary to vacuum the bottom of large furniture such as sofas, the temporary locking state of the lock assembly can be released to place the upper rotating tube body vertically and the lower rotating tube body horizontally, so that the floor brush can more easily reach the bottom of the furniture. In this state, the user's operating posture is more comfortable, and there is no need to significantly adjust the position of the hand and the tube body, which makes the operation more convenient and labor-saving.

[0008] Preferably, the locking buckle assembly includes a locking plate, a movable locking buckle, a locking elastic member and a fixed locking buckle, the locking plate is rotatably connected to the upper rotating tube body, the movable locking buckle is connected to the end of the locking plate close to the lower rotating tube body, the fixed locking buckle is connected to the end of the lower rotating tube body close to the locking plate, the movable locking buckle is buckled on the side of the fixed locking buckle away from the upper rotating tube body, and the locking elastic member is connected between the locking plate and the upper rotating tube body and is used to maintain the buckling state of the movable locking buckle and the fixed locking buckle.

[0009] By adopting the above technical solution, the temporary locking state in which the upper rotating tube body and the lower rotating tube body are coaxial can be maintained in this state. When the temporary locking state needs to be released, the lock plate is manually pressed at one end away from the movable lock buckle to overcome the supporting force of the locking elastic member, so that the lock plate can be flipped, so that the movable lock buckle is no longer buckled on the side of the fixed lock buckle away from the upper rotating tube body, so that the lower rotating tube body resumes a rotatable state, which is easy to operate.

[0010] Preferably, the upper rotating tube body includes an upper rotating joint, and the lower rotating tube body includes a lower rotating joint. The upper rotating tube body and the lower rotating tube body are rotationally connected through the rotational cooperation between the upper rotating joint and the lower rotating joint. The lock plate is connected to the upper rotating tube body through the rotational connection with the upper rotating joint, and the fixed lock buckle is connected to the lower rotating tube body through the connection with the lower rotating joint.

[0011] By adopting the above technical solution, the arrangement of the upper rotating joint and the lower rotating joint makes the rotation connection between the upper rotating tube body and the lower rotating tube body more flexible, and is convenient for processing and assembly, thereby improving the overall production efficiency. The rotation connection between the lock plate and the upper rotating joint and the connection between the fixed lock and the lower rotating joint ensure the reliability and stability of the lock assembly in the temporary locking state, and also facilitate the user to quickly release the locking state when needed, thereby improving the convenience of use.

[0012] Preferably, the sides of the upper rotating joint and the lower rotating joint are both provided with reserved grooves, and when the upper rotating tube body and the lower rotating tube body are in a coaxial state, the two reserved grooves are connected and form a reserved hole.

[0013] By adopting the above technical solution, the reserved groove or the reserved hole can facilitate observation of the state of the hose during use. If the hose is damaged, it can be observed more intuitively at the first time, which is convenient for timely treatment. In addition, the reserved groove can also facilitate installation of the interior of the upper rotary joint or the lower rotary joint during assembly. The fingers can pass through the reserved groove for assembly, which is more convenient to operate.

[0014] Preferably, the upper rotary joint and the lower rotary joint are both provided with a receiving hole for inserting the hose end, a sealing sleeve is provided between the bottom wall of the receiving hole and the hose end, the sealing sleeve is arranged on the outside of the hose end, and the sealing sleeve is interference fit with the side wall of the receiving hole.

[0015] By adopting the above technical solution, reliable sealing between the hose and the upper rotary joint and the lower rotary joint is achieved. Specifically, the sealing sleeve is arranged on the outer side of the hose end and has an interference fit with the side wall of the receiving hole, which effectively prevents the leakage of dust and airflow and improves the working efficiency and reliability of the vacuum cleaner. At the same time, this design also helps to extend the service life of the hose and the joint and reduce failures caused by poor sealing.

[0016] Preferably, the outer side wall of the hose is provided with a mounting ring groove, and the inner side wall of the sealing sleeve is provided with a mounting ring strip, and the mounting ring strip is adapted to be inserted into the interior of the mounting ring groove.

[0017] By adopting the above technical solution, the connection between the sealing sleeve and the hose is more stable, loosening due to vibration or other external factors is avoided, and the overall reliability and service life of the vacuum cleaner elbow are improved. The matching design of the mounting ring groove and the mounting ring strip simplifies the assembly process, making production and maintenance more convenient and efficient.

[0018] Preferably, a tightening sleeve is provided on the outer side of the hose, and tightening surfaces are provided on the inner side walls of the upper rotary joint and the lower rotary joint, and the tightening sleeve abuts between the end surface of the sealing sleeve and the tightening surface.

[0019] By adopting the above technical solution, the tightening sleeve can effectively prevent the hose from loosening due to vibration and other reasons during use, ensure the tight connection between the hose and the upper rotary joint and the lower rotary joint, and improve the overall sealing and stability. The design of the tightening table allows the tightening sleeve to be accurately positioned during installation, avoiding the problem of poor sealing caused by installation deviation. At the same time, the tightening sleeve can also play a buffering role, reduce the impact of external impact on the hose, and extend the service life of the hose.

[0020] Preferably, an elastic threaded collar is sleeved on the outer side of the hose, and the elastic threaded collar abuts between the end faces of the two sealing sleeves.

[0021] By adopting the above technical solution, the elastic threaded ring can further tighten the two sealing sleeves, so that the sealing performance between the sealing sleeve and the receiving hole is better. At the same time, the elastic threaded ring can adaptively deform as the hose bends, so that all parts of the outside of the hose are protected by the elastic threaded ring. When the upper rotating tube body and the lower rotating tube body are released from the temporary locking state, the hose is exposed outside, and the elastic threaded ring can reduce the probability of external sharp objects directly contacting the hose, thereby providing certain protection for the hose.

[0022] Preferably, a pressure ring is provided at the end of the elastic threaded collar, and the pressure ring has an installation notch for the hose to enter and exit. The elastic threaded collar is connected to the sealing sleeve by abutting against the pressure ring and the sealing sleeve.

[0023] By adopting the above technical solution, a pressure ring is provided at the end of the elastic threaded collar, and the pressure ring has an installation notch for the hose to enter and exit, so that the elastic threaded collar can be connected to the sealing sleeve by the pressure ring and the sealing sleeve. In this way, not only can the tight connection between the elastic threaded collar and the sealing sleeve be ensured and the sealing performance be improved, but also the sealing gasket can be conveniently installed in a small space, thereby improving the installation efficiency and stability. In addition, the installation notch of the pressure ring forms end one and end two, and the outer end surface of end two is provided with a pressure block, and the elastic threaded collar is actually connected to the inner end surface of end one close to the axis. In addition, a support block is also extended to the inner side of the pressure ring, which can also be used to assist in the installation of the sealing gasket before the elastic threaded collar is installed on the outside of the hose, thereby solving the problem that the sealing gasket is not easily installed in place due to the difficulty of entering the narrow part. When installing the sealing gasket, the sealing gasket can be entered into the pressure ring from the installation notch, and then most of the sealing gasket can be placed on the inner side of the pressure ring (and located on the inner side of the end one and the support block), and a small part of the sealing gasket can be placed on the outer side of the pressure block. In this state, the end one, the pressure block and the support block form a certain clamping effect on the sealing gasket, which can maintain the temporary clamping of the sealing gasket and have a certain stability. At this time, placing the end of the elastic threaded ring as a whole at the installation position will be more convenient and more stable (in a small space) than manual operation, and then rotating the elastic threaded ring, using the pressure block to gradually press down various parts of the sealing gasket for installation. This process can also be understood as the pressure ring gradually withdrawing from the sealing gasket until the entire sealing gasket is installed to the specified position under the action of the pressure block. At this time, the sealing gasket is completely separated from the pressure ring, and the overall operation is more convenient and more efficient than manual operation in a small space. During the actual installation process, glue or other adhesives can be applied to designated locations. When installing the sealing gasket using a pressure ring, a pressure block can be used to gradually press various parts of the sealing gasket to increase the adhesion strength after installation.

[0024] In a second aspect, the present application provides a vacuum cleaner elbow processing technology, which adopts the following technical solution: A vacuum cleaner elbow processing technology comprises assembling an upper rotary joint and a lower rotary joint, assembling a hose between the upper rotary joint and the lower rotary joint, inserting an upper rotary tube body into the upper rotary joint, and inserting a lower rotary tube body into the upper rotary joint; Sealing gaskets are laid on the ends of the upper rotating joint, the lower rotating joint, the upper rotating tube body and the lower rotating tube body by means of elastic threaded collars.

[0025] By adopting the above technical solution, the processing technology of the vacuum cleaner elbow ensures the precise assembly of each component, improving the assembly efficiency and product quality. Specifically: Assembling the upper rotating joint with the lower rotating joint ensures a reliable rotation connection between the upper rotating tube body and the lower rotating tube body, thereby enhancing the overall stability and durability of the bent tube.

[0026] Assembling the hose between the upper rotary joint and the lower rotary joint ensures smooth flow of airflow, reduces resistance during the vacuuming process, and improves the vacuuming effect.

[0027] The upper rotating tube body is inserted into the upper rotating joint, and the lower rotating tube body is inserted into the lower rotating joint, so that the quick positioning and fixing of each component can be achieved, the assembly process is simplified, and the production efficiency is improved.

[0028] Sealing gaskets are laid at the ends of the upper rotating joint, the lower rotating joint, the upper rotating tube body and the lower rotating tube body using elastic threaded collars, thereby enhancing the sealing performance of each interface, preventing dust leakage and extending the service life.

[0029] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the design of the rotating connection and the lock assembly between the upper rotating tube body and the lower rotating tube body, when it is necessary to vacuum the bottom of large furniture such as sofas, the temporary locking state can be released, so that the upper rotating tube body is placed vertically and the lower rotating tube body is placed horizontally, which greatly reduces the user's operating difficulty and physical exertion and improves the convenience of operation; 2. The lock assembly includes a lock plate, a movable lock, a locking elastic member and a fixed lock. The upper rotating tube and the lower rotating tube can be temporarily locked and unlocked through simple manual operation. The operation is simple and reliable. 3. The sides of the upper and lower rotary joints are provided with reserved grooves, which not only facilitate observation of the hose status, but also facilitate installation of internal components during assembly, thus improving the efficiency of production and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application; Figure 2 This is a structural schematic diagram for illustrating the connection relationship between the lock assembly and the upper rotary joint and the lower rotary joint in the embodiment of the present application; Figure 3 for Figure 2 Cross-sectional view along AA direction; Figure 4 This is a structural schematic diagram for illustrating the connection relationship between the lock assembly and the upper rotary joint and the lower rotary joint in the embodiment of the present application; Figure 5This is a structural schematic diagram for illustrating the connection relationship between the hose and the upper rotary joint in the embodiment of the present application; Figure 6 This is a structural schematic diagram for illustrating the connection relationship between the pressure ring and the elastic threaded collar in the embodiment of the present application; Figure 7 It is a structural schematic diagram used to illustrate the connection relationship between the sealing gasket and the support block in the embodiment of the present application.

[0031] In the figure: 1. Upper rotating tube body; 11. Upper rotating joint; 12. Reserved groove; 13. Receiver hole; 2. Lower rotating tube body; 21. Lower rotating joint; 3. Hose; 31. Sealing sleeve; 32. Mounting ring strip; 320. Mounting ring groove; 33. Tightening sleeve; 34. Tightening table; 4. Locking buckle assembly; 41. Locking plate; 42. Active locking buckle; 43. Locking elastic member; 44. Fixed locking buckle; 45. Slope; 5. Elastic threaded collar; 6. Pressing ring; 60. Installation notch; 61. End 1; 62. End 2; 63. Pressing block; 64. Support block; 7. Sealing gasket. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.

[0033] The inventor of the present application found that when vacuuming a handheld vacuum cleaner, since the negative pressure tube and the handheld part need to maintain a coaxial state, the operating posture is relatively inconvenient when vacuuming the bottom of large furniture such as sofas. To this end, the present application mainly adopts the following vacuum cleaner elbow, including an upper rotating tube body and a lower rotating tube body, the upper rotating tube body and the lower rotating tube body are rotatably connected, the upper rotating tube body and the lower rotating tube body are connected through a hose, and a locking assembly is also provided between the upper rotating tube body and the lower rotating tube body, and the locking assembly is used to temporarily lock the upper rotating tube body and the lower rotating tube body in a coaxial state, so that the vacuuming operation in a standing state can be performed under normal conditions, and when it is necessary to vacuum the bottom of large furniture such as sofas, the temporary locking state can be released, so that the upper rotating tube body is placed vertically and the lower rotating tube body is placed horizontally, and the overall operation is more convenient. The present application is further described in detail below.

[0034] Reference Figure 1 and Figure 2 The vacuum cleaner elbow provided in the embodiment of the present application includes an upper rotating tube body 1 and a lower rotating tube body 2, wherein the upper rotating tube body 1 includes an upper rotating joint 11, and the lower rotating tube body 2 includes a lower rotating joint 21. The upper rotating tube body 1 and the lower rotating tube body 2 are rotatably connected by the rotational cooperation between the upper rotating joint 11 and the lower rotating joint 21. The upper rotating joint 11 and the lower rotating joint 21 are connected through a hose 3, and a locking assembly 4 is also provided between the upper rotating joint 11 and the lower rotating joint 21. The locking assembly 4 is used to temporarily lock the upper rotating tube body 1 and the lower rotating tube body 2 in a coaxial state. This design allows the vacuum cleaner to perform vacuuming operations in a standing state under normal conditions, and when it is necessary to vacuum the bottom of large furniture such as sofas, the temporary locking state can be released to place the upper rotating tube body 1 vertically and the lower rotating tube body 2 horizontally, which is more convenient to operate.

[0035] Reference Figure 3 and Figure 4 The lock assembly 4 includes a lock plate 41, a movable lock 42, a locking elastic member 43 and a fixed lock 44. The lock plate 41 is connected to the upper rotary joint 11 by rotation through a rotating shaft. The movable lock 42 is located at the end of the lock plate 41 close to the lower rotary joint 21 and is formed by integral molding. The fixed lock 44 is fixedly connected to the end of the lower rotary joint 21 close to the lock plate 41. The state in the figure is that the upper rotating tube 1 and the lower rotating tube 2 are coaxial. In this state, the movable lock 42 is buckled on the side of the fixed lock 44 away from the upper rotating lock. The locking elastic member 43 is connected between the lock plate 41 and the upper rotary joint 11 and is in a compressed state. In this embodiment, the locking elastic member 43 uses a metal spring to maintain the buckling state of the movable lock 42 and the fixed lock 44. This design allows the upper rotating tube 1 and the lower rotating tube 2 to be temporarily locked in a coaxial state. When the locking state needs to be released, the locking state can be released by pressing the end of the lock plate 41 away from the movable lock 42. The operation is simple and convenient. In the state shown in the figure, the side walls of the fixed lock buckle 44 and the movable lock buckle 42 that are separated from each other are also provided with slope surfaces 45. When the upper rotating tube body 1 and the lower rotating tube body 2 need to restore the coaxial state, the two slope surfaces 45 can squeeze each other and slide relatively to finally restore to the buckled state of the fixed lock buckle 44 and the movable lock buckle 42, thereby improving the convenience of operation.

[0036] Reference Figure 1The sides of the upper rotary joint 11 and the lower rotary joint 21 are prefabricated with reserved grooves 12. When the upper rotary tube body 1 and the lower rotary tube body 2 are coaxial, the two reserved grooves 12 are connected and enclose a reserved hole. Whether it is the reserved groove 12 or the reserved hole, it is convenient for the user to observe the state of the hose 3 during use. If the hose 3 is damaged, it can be observed more intuitively at the first time, which is convenient for timely handling. In addition, the reserved groove 12 can also facilitate the installation of the interior of the upper rotary joint 11 or the lower rotary joint 21 during the assembly process. The fingers can pass through the reserved groove 12 to assemble the sealing gasket and other parts. If the reserved groove 12 is not provided, the installation process needs to use the fingertips to clamp the sealing gasket and place it at the bottom of the narrow part. The operation is inconvenient and the accuracy of the installation position is difficult to observe. By providing the reserved groove 12, the operation can be more convenient, and it is more conducive to observing the bottom of the upper rotary joint 11 or the lower rotary joint during the assembly process.

[0037] Reference Figure 4 and Figure 5 , the upper rotary joint 11 and the lower rotary joint 21 are both provided with a receiving hole 13, a sealing sleeve 31 is provided between the bottom wall of the receiving hole 13 and the end of the hose 3, the sealing sleeve 31 is provided on the outside of the end of the hose 3, the outer wall of the hose 3 is provided with a mounting ring groove 320, the inner wall of the sealing sleeve 31 is provided with a mounting ring strip 32, and the mounting ring strip 32 is adapted to be inserted into the mounting ring groove 320. This design can further enhance the connection strength between the sealing sleeve 31 and the hose 3 to ensure the sealing effect. The sealing sleeve 31 is interference fit with the side wall of the receiving hole 13. This design can ensure the sealing between the hose 3 and the upper rotary joint 11 and the lower rotary joint 21 to prevent air leakage.

[0038] Reference Figure 5 The outer side of the hose 3 is also sleeved with a tightening sleeve 33, and the inner side walls of the upper rotary joint 11 and the lower rotary joint 21 are both extended with a tightening table 34, and the tightening sleeve 33 is abutted between the end surface of the sealing sleeve 31 and the tightening table 34. This design can further ensure the tight connection between the hose 3 and the upper rotary joint 11 and the lower rotary joint 21 to prevent loosening.

[0039] Reference Figure 1 and Figure 4 An elastic threaded collar 5 is also sleeved on the outside of the hose 3, and a pressure ring 6 is integrally formed at the end of the elastic threaded collar 5. The thickness of the pressure ring 6 is greater than the diameter of the elastic threaded collar 5, and the pressure ring 6 abuts against the end face of the sealing sleeve 31 at the corresponding position. The elastic threaded collar 5 is in a compressed state as a whole. On the one hand, the two sealing sleeves 31 can be further abutted to make the sealing between the sealing sleeve 31 and the receiving hole 13 better. On the other hand, the elastic threaded collar 5 can adaptively deform with the bending of the hose 3, play a certain protective role against external sharp objects, and reduce the risk of damage to the hose 3.

[0040] Reference Figure 6 and Figure 7 The pressure ring 6 also has an installation notch 60 for the hose 3 to enter and exit. On the one hand, the installation notch 60 can allow the hose 3 to enter after being stretched. On the other hand, before the elastic threaded collar 5 is installed on the outside of the hose 3, it can also be used to assist in the installation of the sealing gasket 7, solving the problem that the sealing gasket 7 is not easily installed properly due to the difficulty of entering the narrow part. The installation notch 60 of the pressure ring 6 forms an end 1 61 and an end 2 62. The outer end surface of the end 2 62 is integrally formed with a pressure block 63. The elastic threaded collar 5 is actually connected to the inner end surface of the end 1 61 on one side close to the axis. In addition, a support block 64 is also extended from the inner side of the pressure ring 6 near the end 1 61. The support block 64 can be used to temporarily support the sealing gasket 7.

[0041] Reference Figure 6 and Figure 7 When installing the sealing gasket 7, the sealing gasket 7 can be inserted into the pressure ring 6 from the installation notch 60, and then most of the sealing gasket 7 is placed on the inner side of the pressure ring 6 (and located on the inner side of the end 61 and the support block 64), and a small part of the sealing gasket 7 is placed on the outer side of the pressure block 63. In this state, the end 61, the pressure block 63 and the support block 64 form a certain clamping effect on the sealing gasket 7, which can maintain the temporary clamping of the sealing gasket 7 and has a certain stability. Among them, the support area of ​​the support block 64 for the sealing gasket 7 is limited, and its supporting effect on the sealing gasket 7 is weak. In other words, the sealing gasket 7 and the support block 64 are easier to separate. At this time, placing the end of the elastic threaded collar 5 as a whole at the installation position will be more convenient and more stable than manual operation (in a small space), and then rotating the elastic threaded collar 5, using the pressing block 63 to gradually press down the various parts of the sealing gasket 7 for installation. This process can also be understood as the pressing ring 6 gradually withdrawing from the sealing gasket 7 (the sealing gasket 7 and the supporting block 64 will separate themselves during the rotation process, because the sealing gasket 7 will continue to perform irregular deformation movement during the relative rotation of the elastic threaded collar 5. During the deformation movement, the actual support area of ​​the sealing gasket 7 and the supporting block 64 The support block 64 is also constantly changing, so the support stability at the support block 64 is poor, so that the support block 64 is more likely to be "separated" from the sealing gasket 7. The so-called "separation" actually refers to the support block 64 changing from the bottom of the sealing gasket 7 to the top of the sealing gasket 7. When the support block 64 is located above the sealing gasket 7, the subsequent rotation process will continue to "press down" the sealing gasket 7 and transport it to the bottom of the pressing block 63), until the entire sealing gasket 7 is installed to the specified position under the action of the pressing block 63. At this time, the sealing gasket 7 is completely separated from the pressing ring 6. The overall operation is more convenient and more efficient than manual operation in a small space.

[0042] In addition, in addition to relying on the support block 64 to separate from the sealing gasket 7 through the support instability, in the actual installation process, glue or other adhesives can also be applied at designated positions, so that in the process of installing the sealing gasket 7 using the pressure ring 6, the pressure block 63 can be used to gradually press various parts of the sealing gasket 7, and the adhesive strength of each part after pressing is higher than that of the unpressed part, thereby forming a difference in the viscosity of each part of the sealing gasket 7. This difference can also promote the "separation" of the support block 64 and the sealing gasket 7, so that the support block 64 is located above the sealing gasket 7. Based on this state, the elastic threaded collar 5 can be rotated later to finally realize that the sealing gasket 7 is located below the pressure ring 6. And after the pressure block 63 presses various parts of the sealing gasket 7, the adhesive strength after the final assembly is higher.

[0043] Alternatively, after the sealing gasket 7 is partially adhered, the pressure ring 6 can be lifted up to actively separate the pressure ring 6 from the sealing gasket 7. After the sealing gasket 7 completely falls to the specified position, the pressure ring 6 can be used to press the sealing gasket 7 as a whole, and then the elastic threaded ring 5 can be rotated to gradually press the pressure block 63 along the circumferential direction.

[0044] The implementation principle of this embodiment is: by setting the rotation connection and the lock assembly 4 between the upper rotating tube body 1 and the lower rotating tube body 2, the vacuum cleaner can be operated in a standing state under normal conditions, and when it is necessary to vacuum the bottom of large furniture such as sofas, the temporary locking state can be released to place the upper rotating tube body 1 vertically and the lower rotating tube body 2 horizontally, which is more convenient to operate. In addition, by setting the reserved groove 12, the sealing sleeve 31, the tightening sleeve 33 and the elastic threaded collar 5 and other structures, the sealing and connection strength between the hose 3 and the upper rotating joint 11 and the lower rotating joint 21 are further enhanced, thereby improving the overall reliability and service life.

[0045] Finally, this embodiment provides a processing technology for a vacuum cleaner elbow, in which the upper rotary joint 11 and the lower rotary joint 21 are assembled, the hose 3 is assembled between the upper rotary joint 11 and the lower rotary joint 21, the upper rotary tube body 1 is inserted into the upper rotary joint 11, and the lower rotary tube body 2 is inserted into the upper rotary joint 11; sealing gaskets 7 are laid at the ends of the upper rotary joint 11, the lower rotary joint 21, the upper rotary tube body 1 and the lower rotary tube body 2 using elastic threaded rings 5.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vacuum cleaner elbow, characterized in that: The invention comprises an upper rotating tube body (1) and a lower rotating tube body (2), wherein the upper rotating tube body (1) and the lower rotating tube body (2) are rotationally connected to each other, the upper rotating tube body (1) and the lower rotating tube body (2) are connected to each other via a hose (3), and a locking assembly (4) is also provided between the upper rotating tube body (1) and the lower rotating tube body (2), wherein the locking assembly (4) is used to temporarily lock the upper rotating tube body (1) and the lower rotating tube body (2) in a coaxial state.

2. A vacuum cleaner elbow according to claim 1, characterized in that: The lock assembly (4) comprises a lock plate (41), a movable lock (42), a locking elastic member (43) and a fixed lock (44); the lock plate (41) is rotatably connected to the upper rotating tube (1); the movable lock (42) is connected to the end of the lock plate (41) close to the lower rotating tube (2); the fixed lock (44) is connected to the end of the lower rotating tube (2) close to the lock plate (41); the movable lock (42) is buckled on a side of the fixed lock (44) away from the upper rotating tube (1); the locking elastic member (43) is connected between the lock plate (41) and the upper rotating tube (1) and is used to maintain the buckling state of the movable lock (42) and the fixed lock (44).

3. A vacuum cleaner elbow according to claim 2, characterized in that: The upper rotating tube body (1) comprises an upper rotating joint (11), and the lower rotating tube body (2) comprises a lower rotating joint (21). The upper rotating tube body (1) and the lower rotating tube body (2) are rotatably connected by the rotational cooperation between the upper rotating joint (11) and the lower rotating joint (21). The locking plate (41) is connected to the upper rotating tube body (1) by the rotational connection with the upper rotating joint (11), and the fixing lock buckle (44) is connected to the lower rotating tube body (2) by the connection with the lower rotating joint (21).

4. A vacuum cleaner elbow according to claim 3, characterized in that: The sides of the upper rotating joint (11) and the lower rotating joint (21) are both provided with reserved grooves (12), and when the upper rotating tube body (1) and the lower rotating tube body (2) are in a coaxial state, the two reserved grooves (12) are connected and enclose a reserved hole.

5. The vacuum cleaner elbow according to claim 3, characterized in that: The upper rotary joint (11) and the lower rotary joint (21) are both provided with a receiving hole (13) for inserting the end of the hose (3), a sealing sleeve (31) is provided between the bottom wall of the receiving hole (13) and the end of the hose (3), the sealing sleeve (31) is arranged on the outside of the end of the hose (3), and the sealing sleeve (31) is interference-fitted with the side wall of the receiving hole (13).

6. A vacuum cleaner elbow according to claim 5, characterized in that: The outer wall of the hose (3) is provided with a mounting ring groove (320), and the inner wall of the sealing sleeve (31) is provided with a mounting ring strip (32), and the mounting ring strip (32) is adapted to be inserted into the interior of the mounting ring groove (320).

7. The vacuum cleaner elbow according to claim 5, characterized in that: The outer side of the hose (3) is provided with a tightening sleeve (33), the inner side walls of the upper rotary joint (11) and the lower rotary joint (21) are both provided with a tightening table (34), and the tightening sleeve (33) is in contact between the end surface of the sealing sleeve (31) and the tightening table (34).

8. The vacuum cleaner elbow according to claim 5, characterized in that: An elastic threaded collar (5) is sleeved on the outside of the hose (3), and the elastic threaded collar (5) abuts between the end surfaces of the two sealing sleeves (31).

9. The vacuum cleaner elbow according to claim 8, characterized in that: A pressing ring (6) is provided at the end of the elastic threaded collar (5), and the pressing ring (6) has an installation notch (60) for the hose (3) to enter and exit. The elastic threaded collar (5) is connected to the sealing sleeve (31) by abutting against the pressing ring (6) with the sealing sleeve (31).

10. A processing technology for a vacuum cleaner elbow, characterized in that: Assemble the upper rotary joint (11) and the lower rotary joint (21), assemble the hose (3) between the upper rotary joint (11) and the lower rotary joint (21), insert the upper rotary tube body (1) into the upper rotary joint (11), and insert the lower rotary tube body (2) into the upper rotary joint (11); Sealing gaskets (7) are laid on the ends of the upper rotary joint (11), the lower rotary joint (21), the upper rotary tube body (1) and the lower rotary tube body (2) using elastic threaded collars (5).

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