Telescopic toothbrush rod section connecting device

Abstract

The utility model relates to the technical field of toothbrushes, in particular to a telescopic toothbrush rod section connecting device which comprises an outer rod section, limiting sliding ways which are symmetrically distributed are formed in the inner wall of the outer rod section, limiting sliding blocks are installed on the two limiting sliding ways in a sliding mode, and an inner rod section is fixedly installed between the two limiting sliding blocks. And a toothbrush head is mounted at the top end of the inner rod section. According to the telescopic toothbrush rod section connecting device, through cooperative use of the outer rod section, the inner rod section, the toothbrush head, the soft cover body, the positioning cavity, the limiting slide way, the first spring, the positioning plate, the rotating shaft, the fixing hole, the pressing plate, the ejector rod, the second spring, the circular push block, the limiting slide block and the positioning groove, a user can stably operate the whole extending toothbrush by holding the outer rod section. Through clamping and limiting of the limiting sliding block by the positioning plate and sliding and limiting of the limiting sliding block by the limiting sliding way, the inner rod section is effectively prevented from loosening in the using process.

Description

TECHNICAL FIELD

[0001] The utility model relates to toothbrush technical field, concretely is a telescopic toothbrush rod section connecting device. BACKGROUND

[0002] The length of the rod body of the conventional toothbrush is usually fixed, and the toothbrush occupies a larger space during carrying and is inconvenient to store. In particular, for people who often go on business trips or travel, the toothbrush with a fixed length increases the burden of luggage. In order to solve this problem, some telescopic toothbrushes appear on the market.

[0003] However, the existing telescopic toothbrush rod section connecting device has the problems of unstable connection and inconvenient telescopic operation. In terms of connection stability, due to the unreasonable design of the connection structure, the connection between the rod sections lacks sufficient fastening force, which causes the rod sections to easily loosen during normal use of the toothbrush, such as when a large force is applied during tooth brushing. In a more serious case, the rod sections may even directly fall off, making the toothbrush unable to be normally used and greatly affecting the user's experience. In terms of convenient telescopic operation, the telescopic structure is often designed to be very complex, and the user needs to perform relatively complicated operation steps to realize the telescoping of the rod sections.

[0004] Therefore, it is necessary to provide a telescopic toothbrush rod section connecting device to solve the above technical problems. SUMMARY

[0005] The utility model aims at providing a telescopic toothbrush rod section connecting device to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A telescopic toothbrush rod section connecting device comprises:

[0008] An outer rod section is provided with symmetrically distributed limiting sliding channels on the inner wall, two limiting sliding blocks are slidingly installed on the two limiting sliding channels, an inner rod section is fixedly installed between the two limiting sliding blocks, a toothbrush head is installed at the top end of the inner rod section, a positioning cavity is formed in the upper side of the inner wall of the limiting sliding channel, and a rotating shaft is rotatably installed in the positioning cavity;

[0009] A positioning plate is fixedly installed on the rotating shaft, a first spring is fixedly connected between the upper end of the positioning plate and the inner wall of the positioning cavity, a positioning groove is formed in the side of the limiting sliding block away from the inner rod section, the positioning groove is matched with the positioning plate, and an operating mechanism is arranged on the upper side of the outer wall of the outer rod section.

[0010] Preferably, the bottom of the outer rod section is fixedly provided with a clamping post, the bottom of the inner rod section is provided with a clamping groove, and the inner wall of the clamping groove is fixedly provided with symmetrically distributed metal springs, and the clamping groove is elastically clamped with the clamping post through the metal springs.

[0011] Preferably, the operating mechanism comprises two fixed holes symmetrically arranged on the upper side of the outer wall of the outer rod section, the fixed holes correspond to the positions of the positioning cavities, two top rods are slidably inserted into the fixed holes, the end of the top rod inside the positioning cavity abuts against the lower end of the outer wall of the positioning plate, the end of the top rod outside the outer rod section is fixedly provided with a pressing plate, and the second springs are symmetrically arranged between the side of the pressing plate close to the outer rod section and the outer wall of the outer rod section.

[0012] Preferably, the upper side of the outer wall of the outer rod section is fixedly provided with symmetrically distributed soft covers, and the outer surface of the pressing plate abuts against the inner surface of the soft cover.

[0013] Preferably, the end of the top rod inside the positioning cavity is fixedly provided with a circular push block, and the outer diameter of the circular push block is greater than the inner diameter of the fixed hole.

[0014] Preferably, the outer diameter of the inner rod section is matched with the inner diameter of the outer rod section, and the outer wall of the inner rod section is in sliding contact with the inner wall of the outer rod section.

[0015] Preferably, the soft cover is made of rubber material.

[0016] Preferably, the outer wall of the outer rod section is provided with a plurality of equally spaced and uniformly distributed anti-skid rings.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1. The cooperation of the outer rod section, the inner rod section, the toothbrush head, the soft cover, the positioning cavity, the limiting slide, the first spring, the positioning plate, the rotating shaft, the fixed hole, the pressing plate, the top rod, the second spring, the circular push block, the limiting slide block and the positioning groove enables the user to stably operate the entire extended toothbrush by holding the outer rod section. The clamping limiting of the positioning plate on the limiting slide block and the sliding limiting of the limiting slide on the limiting slide block effectively avoid the loosening of the inner rod section during use, ensuring the normal use of the toothbrush. When the toothbrush head and the inner rod section need to be stored in the outer rod section, the user directly presses the two soft covers on the outer surface of the outer rod section to release the clamping of the limiting slide block. At this time, the toothbrush head and the inner rod section can be smoothly pushed into the outer rod section to complete the storage operation, realizing the simplification of the telescopic operation and improving the convenience of the user.

[0019] 2. The utility model discloses a cooperation of the clamping groove of inner rod section bottom end, the elastic action of metal elastic sheet and the outer wall of the clamping of the bottom clamping column of outer rod section inside bottom in the toothbrush is in the state of not unfolding, forms the cooperation of clamping. This elastic clamping mode ensures that inner rod section and toothbrush head can be stably received in the inside of outer rod section, effectively prevent the accidental sliding of inner rod section and toothbrush head or loosening because of slight vibration or collision in the process of daily placement, carrying. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structural schematic diagram of the utility model;

[0021] Figure 2 It is the front view sectional structure schematic diagram of the utility model;

[0022] Figure 3 It is the utility model's Figure 2 It is the enlarged structure schematic diagram of A place in the utility model;

[0023] Figure 4 It is the utility model's Figure 2 It is the enlarged structure schematic diagram of B place in the utility model;

[0024] Figure 5 It is the connection structure schematic diagram of positioning plate and pivot in the utility model;

[0025] Figure 6 It is the connection structure schematic diagram of pressing plate and ejector rod in the utility model.

[0026] In the drawing: 1, outer rod section, 2, inner rod section, 3, toothbrush head, 4, soft cover, 5, positioning cavity, 6, limit slide, 7, first spring, 8, positioning plate, 9, pivot, 10, fixed hole, 11, pressing plate, 12, ejector rod, 13, second spring, 14, round push block, 15, limit sliding block, 16, positioning groove, 17, clamping column, 18, metal elastic sheet, 19, clamping groove. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the following further describes the utility model in conjunction with specific implementation manners.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-6 One embodiment provided by this utility model:

[0032] A telescopic toothbrush handle connecting device, comprising:

[0033] The outer rod section 1 has symmetrically distributed limiting slides 6 on its inner wall. Limiting sliders 15 are slidably installed on both limiting slides 6. The inner rod section 2 is fixedly installed between the two limiting sliders 15. A toothbrush head 3 is installed at the top of the inner rod section 2. A positioning cavity 5 is opened on the upper side of the inner wall of the limiting slides 6. A rotating shaft 9 is rotatably installed inside the positioning cavity 5.

[0034] A positioning plate 8 is fixedly installed on the rotating shaft 9. A first spring 7 is fixedly connected between the upper end of the positioning plate 8 and the inner wall of the positioning cavity 5. A positioning groove 16 is opened on the side of the limiting slider 15 away from the inner rod section 2, and the positioning groove 16 is adapted to the positioning plate 8. An operating mechanism is provided on the upper side of the outer wall of the outer rod section 1.

[0035] The bottom of the inner wall of the outer rod section 1 is fixedly provided with a clamping column 17, the bottom of the inner rod section 2 is provided with a clamping groove 19, the inner wall of the clamping groove 19 is fixedly provided with symmetrically distributed metal springs 18, and the clamping groove 19 is elastically clamped with the clamping column 17 through the metal springs 18.

[0036] In one of the embodiments, the operating mechanism comprises two fixed holes 10 symmetrically arranged on the upper side of the outer wall of the outer rod section 1, the fixed holes 10 correspond to the positions of the positioning cavities 5, the two fixed holes 10 are both slidably inserted with a top rod 12, the end of the top rod 12 inside the positioning cavity 5 abuts against the lower end of the outer wall of the positioning plate 8, the end of the top rod 12 outside the outer rod section 1 is fixedly provided with a pressing plate 11, and the side of the pressing plate 11 close to the outer rod section 1 is fixedly connected with symmetrically distributed second springs 13 between the outer wall of the outer rod section 1.

[0037] In one of the preferred embodiments, the upper side of the outer wall of the outer rod section 1 is fixedly provided with symmetrically distributed soft cover bodies 4, and the outer surface of the pressing plate 11 abuts against the inner surface of the soft cover body 4.

[0038] In one of the embodiments, the end of the top rod 12 inside the positioning cavity 5 is fixedly provided with a circular push block 14, and the outer diameter of the circular push block 14 is greater than the inner diameter of the fixed hole 10, so as to limit the top rod 12 and avoid the top rod 12 from being separated from the fixed hole 10.

[0039] In one of the preferred embodiments, the outer diameter of the inner rod section 2 is adapted to the inner diameter of the outer rod section 1, the outer wall of the inner rod section 2 is in sliding contact with the inner wall of the outer rod section 1, so as to ensure the smooth and stable extension and retraction of the inner rod section 2, avoid the shaking and deviation, and guarantee the reliable extension and retraction function of the toothbrush.

[0040] In one of the embodiments, the soft cover body 4 is made of rubber material, has good flexibility and elasticity, is comfortable to press, is anti-skid and durable, and can prevent dust and water to a certain extent.

[0041] In one of the preferred embodiments, the outer wall of the outer rod section 1 is provided with a plurality of equidistant and uniformly distributed anti-skid rings, which can increase the friction between the hand and the outer rod section 1, prevent the toothbrush from falling during brushing, and improve the use stability and holding comfort.

[0042] The utility model discloses a working principle for: the device not involved part is same with prior art or can adopt prior art to realize, when using this telescopic toothbrush, need the toothbrush head 3 from the outer pole section 1 inside stretch out. User can directly via the outer pole section 1 top end opening pull toothbrush head 3, and the displacement of toothbrush head 3 drives the synchronous movement of inner pole section 2, and inner pole section 2 further drives the sliding of limiting sliding block 15 on limiting slide 6. When limiting sliding block 15 slides to the top end position of limiting slide 6, limiting sliding block 15 and the upper end of positioning plate 8 are in contact with the part inside limiting slide 6, and push the upper end of positioning plate 8 to rotate to the inside of positioning cavity 5. In this process, positioning plate 8 rotates through pivot 9, and at the same time, exerts extrusion force on first spring 7. After limiting sliding block 15 completely abuts on the top end position of limiting slide 6, the upper end of positioning plate 8 directly clamps into the inside of positioning slot 16 on limiting sliding block 15 under the elastic recovery force of first spring 7, thereby stably locking limiting sliding block 15 on the top end position of limiting slide 6. The effective fixation of the position of limiting sliding block 15 guarantees the stability of inner pole section 2 after stretching out from the inside of outer pole section 1, so that the user can realize stable operation on the whole stretched toothbrush by holding outer pole section 1. Through the clamping and limiting of positioning plate 8 on limiting sliding block 15 and the sliding and limiting of limiting slide 6 on limiting sliding block 15, the phenomenon that inner pole section 2 loosens in the use process is effectively avoided, and normal use of the toothbrush is ensured. When it is needed to store toothbrush head 3 and inner pole section 2 to the inside of outer pole section 1, the user directly presses two soft covers 4 on the outer surface of outer pole section 1, and the pressing of soft cover 4 drives the movement of pressing plate 11, and pressing plate 11 drives the sliding of top rod 12 to the inside of positioning cavity 5, and at the same time, the movement of pressing plate 11 exerts extrusion on second spring 13. Top rod 12 exerts on the lower end of positioning plate 8 in the movement process to the inside of positioning cavity 5, so that the upper end of positioning plate 8 rotates to the inside of positioning cavity 5, thereby releasing the clamping of limiting sliding block 15. At this time, toothbrush head 3 and inner pole section 2 can be smoothly pushed to the inside of outer pole section 1, and the storage operation is completed, and the simplification of telescopic operation is realized, and the convenience of user use is improved.

[0043] When the toothbrush is in the unfolded state, the clamping groove 19 at the bottom end of the inner pole section 2 is in clamping cooperation with the outer wall of the bottom clamping column 17 in the inner pole section 1 by the elastic action of the metal spring 18. This elastic clamping mode ensures that the inner pole section 2 and the toothbrush head 3 can be stably stored in the inner pole section 1, effectively preventing the inner pole section 2 and the toothbrush head 3 from accidentally sliding out or loosening due to slight vibration or collision during daily placement and carrying. When the toothbrush needs to be used, the user only needs to pull the toothbrush head 3 outward by hand, so that the pulling force acting on the inner pole section 2 overcomes the elastic clamping force of the metal spring 18, and the clamping groove 19 on the inner pole section 2 and the clamping column 17 on the outer pole section 1 are disconnected. This design not only ensures the stability of the storage state of the inner pole section 2 and the toothbrush head 3, but also facilitates the user to operate quickly, which has high practicability.

[0044] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A telescoping toothbrush handle section connecting device, characterized by, It includes The outer rod section (1), the inner wall of the outer rod section (1) is provided with symmetrically distributed limiting sliding ways (6), the limiting sliding ways (6) are slidably installed with limiting sliding blocks (15), the limiting sliding blocks (15) are fixedly installed with an inner rod section (2) between the two limiting sliding blocks (15), the top end of the inner rod section (2) is installed with a toothbrush head (3), the upper side of the inner wall of the limiting sliding way (6) is provided with a positioning cavity (5), and the inside of the positioning cavity (5) is rotatably installed with a rotating shaft (9); The rotating shaft (9) is fixedly installed with a positioning plate (8), and the first spring (7) is fixedly connected between the upper end of the positioning plate (8) and the inner wall of the positioning cavity (5). The side of the limiting sliding block (15) away from the inner rod section (2) is provided with a positioning groove (16), and the positioning groove (16) is matched with the positioning plate (8), and the upper side of the outer wall of the outer rod section (1) is provided with an operating mechanism.

2. A telescoping toothbrush shaft joint according to claim 1, wherein: The bottom of the inner wall of the outer rod section (1) is fixedly installed with a clamping column (17), the bottom of the inner rod section (2) is provided with a clamping groove (19), the inner wall of the clamping groove (19) is fixedly installed with symmetrically distributed metal elastic sheets (18), and the clamping groove (19) is elastically clamped with the clamping column (17) through the metal elastic sheets (18).

3. A telescoping toothbrush shaft joint according to claim 1, wherein: The operating mechanism comprises a fixed hole (10), and the number of the fixed hole (10) is two. The fixed holes (10) are symmetrically distributed on the upper side of the outer wall of the outer rod section (1), the fixed holes (10) correspond to the positions of the positioning cavities (5), the top rods (12) are slidably inserted into the two fixed holes (10), the end of the top rod (12) located in the positioning cavity (5) abuts against the outer wall of the lower end of the positioning plate (8), the end of the top rod (12) located outside the outer rod section (1) is fixedly installed with a pressing plate (11), and the second springs (13) are fixedly connected between the side of the pressing plate (11) close to the outer rod section (1) and the outer wall of the outer rod section (1).

4. A telescopic toothbrush shaft joint according to claim 3, characterized in that: The upper side of the outer wall of the outer rod section (1) is fixedly installed with symmetrically distributed soft cover bodies (4), and the outer surface of the pressing plate (11) abuts against the inner surface of the soft cover body (4).

5. A telescoping toothbrush shaft joint according to claim 3, wherein: The end of the top rod (12) located in the positioning cavity (5) is fixedly installed with a circular push block (14), and the outer diameter of the circular push block (14) is greater than the inner diameter of the fixed hole (10).

6. A telescoping toothbrush shaft joint according to claim 1, wherein: The outer diameter of the inner rod section (2) is matched with the inner diameter of the outer rod section (1), and the outer wall of the inner rod section (2) is in sliding contact with the inner wall of the outer rod section (1).

7. A telescoping toothbrush shaft joint according to claim 4, wherein: The material of the soft cover body (4) is rubber material.

8. A telescoping toothbrush shaft joint according to claim 1, wherein: The outer wall of the outer rod section (1) is provided with a plurality of equidistant and uniformly distributed anti-skid rings.

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