Shell structure of personal handheld appliance and personal handheld appliance

Abstract

The embodiment of the utility model discloses a shell structure of a personal handheld appliance and the personal handheld appliance. The shell structure comprises an outer shell and an inner shell arranged in the outer shell. One end of the inner shell is opened, a clamping arm is arranged at the end, close to the opening, of the inner shell, and a clamping groove for clamping the clamping arm is formed in the inner wall of the outer shell; the end, close to the opening, of the inner shell is further provided with a reinforcing part, the reinforcing part is configured to be capable of blocking at least part of the opening, and the clamping arms are distributed on the side where the connecting position of the reinforcing part and the inner shell is located. By the adoption of the structural design, the strength of the lower end of the inner shell can be enhanced by arranging the reinforcing part, then the clamping arms are enhanced, when the inner shell is stressed, the reinforcing part can support the lower end of the inner shell, the possibility that the inner shell deforms inwards and is flattened is reduced, the clamping arms of the inner shell can be prevented from being disengaged from the clamping grooves of the outer shell, and the use effect of the appliance is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of handheld devices, and in particular to a shell structure of a personal handheld device. Background Art

[0002] Electric toothbrushes are new products that have appeared in recent years. Compared with ordinary toothbrushes, electric toothbrushes rotate rapidly to make the brush head produce high-frequency vibrations, instantly breaking down the toothpaste into fine foam, deeply cleaning the gaps between teeth, and can more thoroughly remove dental plaque and reduce gingivitis and bleeding gums.

[0003] In the related art, the handle of an electric toothbrush includes an outer shell and an inner shell, and the outer shell and the inner shell are fixed by clamping. However, since the clamping structure itself is elastic and easily deformed, when the electric toothbrush is subjected to external impact such as falling, the impact force easily causes the clamping arm to elastically deform and disengage, thereby causing the relative position between the inner shell and the outer shell to change, thereby affecting the normal use of the handle. Utility Model Content

[0004] The main purpose of the present application is to propose a shell structure for a personal handheld device, which aims to solve the technical problem that the clamping arm between the outer shell and the inner shell lacks a blocking and limiting structure, which easily causes the clamping arm to detach when subjected to external force impact such as falling, resulting in looseness between the inner shell and the outer shell.

[0005] To achieve the above-mentioned purpose, the present application proposes a housing structure of a personal handheld device, comprising an outer housing and an inner housing disposed in the outer housing; one end of the inner housing is open, an end of the inner housing close to the opening is provided with a clamping arm, and an inner wall of the outer housing is provided with a clamping groove for clamping the clamping arm;

[0006] A reinforcement portion is further provided at one end of the inner shell body close to the opening, and the reinforcement portion is configured to block at least a portion of the opening, and the clamping arms are distributed on one side where the connection between the reinforcement portion and the inner shell body is located.

[0007] In some embodiments, the reinforcement portion includes a reinforcement end plate, and the reinforcement end plate at least connects two opposite sides of the inner shell.

[0008] In some embodiments, the reinforcement portion further includes a rib structure formed on the reinforcement end plate.

[0009] In some embodiments, the inner shell includes a first shell and a second shell, the first shell and the second shell together form the opening, the reinforcing end plate and the clamping arm are integrally arranged with the first shell, and the second shell is detachably connected to the reinforcing end plate.

[0010] In some embodiments, an assembly port for assembling the inner shell is provided at one end of the outer shell body close to the opening, and a base is attached to the assembly port;

[0011] The base is provided with a stop arm extending toward the opening, and the stop arm abuts against a side of the clamping arm away from the clamping slot.

[0012] In some embodiments, the reinforcing portion and the clamping arm are spaced apart in a direction perpendicular to the opening direction of the opening, the stop arm is inserted into the space, and the side of the stop arm facing away from the clamping arm also abuts against the reinforcing portion.

[0013] In some embodiments, the stop arm is plate-shaped and is further provided with reinforcing ribs.

[0014] In some embodiments, the clamping arms include at least two, and the two clamping arms are spaced apart along the circumference of the inner shell. The stop arms include at least two, and the stop walls correspond to the clamping arms one by one.

[0015] In some embodiments, a first connecting column is further provided on a side of the reinforcing portion facing the base, the first connecting column is provided with a screw hole, and the base is screwed and fixed to the screw hole by screws.

[0016] The utility model also provides a personal handheld device, which comprises a handle, and the handle comprises the aforementioned shell structure.

[0017] By adopting the above technical solution, this application has the following technical effects:

[0018] The shell structure in the present application includes an outer shell, an inner shell and a base, wherein the outer shell and the inner shell are buckled together by a clamping arm and a clamping groove to achieve fixed installation of the inner shell and the outer shell; a reinforcement portion is provided at one end of the inner shell close to the opening, and the reinforcement portion is configured to block at least part of the opening, and the clamping arm is distributed on the side where the connection between the reinforcement portion and the inner shell is located, thereby enhancing the strength of the lower end of the inner shell, and then strengthening the clamping arm. When the inner shell is subjected to force, the reinforcement portion can support the lower end of the inner shell, reduce the possibility of its inward deformation and being flattened, and can prevent the clamping arm of the inner shell from detaching from the clamping groove of the outer shell, thereby ensuring the use effect of the device.

[0019] In addition, the base has a stop arm extending toward the inner side of the opening. The stop arm is arranged on the side of the clamping arm away from the clamping slot and corresponds to the configuration of the clamping arm to limit the inward displacement of the clamping arm that can separate from the outer shell. In this way, when the device is subjected to external impact force such as falling, the stop arm will block the clamping arm to offset the elastic displacement of the clamping arm, thereby preventing the clamping arm from separating from the clamping slot, thereby ensuring the stability of the connection between the inner shell and the outer shell, and ensuring the normal use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of the structure of the device in this application is shown.

[0022] Figure 2 An exploded schematic diagram of the apparatus in the present application is shown.

[0023] Figure 3 A cross-sectional view of the apparatus of the present application is shown.

[0024] Figure 4 Shows Figure 3 Enlarged view of point A in the middle.

[0025] Figure 5 A schematic structural diagram of the base in this application is shown.

[0026] Figure 6 A schematic structural diagram of the inner shell in the present application is shown. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] It should be noted that, in the description of this application, if the terms "first", "second", etc. appear, "first" and "second" are only used to facilitate the description of different components or names, and cannot be understood as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" appears in the full text, its meaning is that it includes three parallel solutions, taking "A and / or B as an example", including Solution A, or Solution B, or a solution that satisfies both A and B.

[0029] See also Figures 1 to 6As shown, the present application provides a personal handheld device, including a handle 100, wherein the handle 100 includes an outer shell 1, an inner shell 2 and a base 3, the outer shell 1 defines a receiving cavity, and the bottom has an assembly port connected to the receiving cavity, the inner shell 2 is arranged in the receiving cavity in the outer shell 1 through the assembly port, the inner shell 2 has a cavity for accommodating a movement component, and the base 3 is attached to the assembly port to prevent the inner shell 2 from falling off from the outer shell 1. Optionally, the outer shell 1 and the inner shell 2 are both roughly cylindrical, and the lower end of the outer shell 1 is open to form an assembly port, and the lower end of the inner shell 2 is open to form an opening.

[0030] In order to prevent the inner shell 2 from moving relative to the outer shell 1, in the embodiment of the present application, the inner shell 2 is fixedly connected with the outer shell 1. Specifically, the inner wall of the outer shell 1 has a card slot 11, one end of the inner shell 2 is open, and the end of the inner shell 2 close to the opening is provided with a card arm 21, which is connected with the card slot 11.

[0031] like Figures 2 to 6 As shown, the card slot 11 is configured as a step slot, and a side wall of the card arm 21 close to the card slot 11 is formed with a step portion 21a adapted to the step slot. The inner housing 2 and the card arm 21 are designed as an integral molding, and of course, a split design can also be adopted in other structural designs. During assembly, the inner housing 2 is installed into the outer housing 1 through the assembly port, and the card arm 21 is embedded in the card slot 11 to fix the inner housing 2 to the outer housing 1 to prevent the two from moving during use.

[0032] Furthermore, a reinforcement portion 27 is provided at one end of the inner shell 2 close to the opening, and the reinforcement portion 27 is configured to block at least part of the opening. The clamping arm 21 is distributed on one side of the connection between the reinforcement portion 27 and the inner shell 2 to enhance the strength of the bottom opening of the inner shell 2, thereby reducing the possibility of the opening end of the inner shell 2 being deformed inward and flattened when impacted.

[0033] Since the clamping arm 21 is distributed on one side of the connection between the reinforcement part 27 and the inner shell 2, it means that the area near the position where the clamping arm 21 is provided on the inner shell 2 is supported by the reinforcement part 27, and the inner side of the inner shell 2 is not hollow but connected by the reinforcement part 27.

[0034] The reinforcement portion 27 includes a reinforcement end plate 25 and a convex rib structure 26 formed on the reinforcement end plate 25 . The convex rib structure 26 can further improve the strength of the reinforcement end plate 25 , thereby improving the strength of the opening end of the inner shell 2 .

[0035] The inner housing 2 can be designed in an upper and lower split design, a left and right split design, or an integrated design. Figure 2 and Figure 6As shown, the inner shell in this embodiment adopts a left-right splicing design, which includes a first shell 24 and a second shell 23, a reinforcing end plate 25 and the first shell 24 are integrally arranged, and the second shell 23 and the reinforcing end plate 25 are detachably connected. It should be noted that the structures of the first shell 24 and the second shell 23 can be interchangeably designed. Of course, in other embodiments, the reinforcing portion 27 can also be respectively arranged on the first shell 24 and the second shell 23 in a left-right splicing manner.

[0036] Furthermore, in order to prevent the clamping arm 21 from radially deviating after being hit and leaving the clamping slot 11, causing the inner housing 2 to separate from the outer housing 1, the base 3 is provided with an extended stopper arm 4 extending upward, which is arranged on the side of the clamping arm 21 away from the clamping slot 11 and corresponding to the clamping arm 21 to limit the displacement of the clamping arm 21 inwardly so as to separate from the outer housing 1; thereby improving the anti-fall and anti-impact performance of the handheld device and ensuring the use effect of the handheld device.

[0037] Furthermore, in order to improve the fit between the clamping arm 21 and the stop arm 4 and improve the anti-impact capability of the stop arm 4 on the clamping arm 21, the reinforcing portion 27 is spaced apart from the clamping arm 21, and the spacing forms a groove 22 adapted to the stop arm 4. The stop arm 4 is inserted into the groove 22, and the side of the stop arm 4 facing away from the clamping arm 21 also abuts against the reinforcing portion 27. In this way, the clamping arm 21 is equivalent to being abutted by the stop arm 4 and the reinforcing portion 27 in the clamping slot 11.

[0038] The stop arm 4 is plate-shaped and the groove 22 is flat, so in the transverse direction, the stop arm 4 is thin and does not occupy too much transverse dimension, so that the handle has a smaller size.

[0039] The stop arm 4 includes a locking portion 41 suitable for inserting into the groove 22, and a main body 42 abutting against the clamping arm 21, and the locking portion 41 and the main body 42 are integrally formed. The main body 42 also includes a reinforcing rib 43, which is arranged on the inner side of the main body 42 away from the clamping arm 21 to enhance the strength of the stop arm 4, ensure the blocking force of the stop arm 4 on the clamping arm 21, and extend the service life.

[0040] Furthermore, a gap is provided between the stop arm 4 and the clamping arm 21, and the width of the gap is smaller than the depth of the clamping slot 11, so as to allow the clamping arm 21 to move within a certain range, but to limit its separation from the clamping slot 11. The above structural design can avoid squeezing between the stop arm 4 and the clamping arm 21, so that the clamping arm 21 can maintain its elasticity when not affected by external force, and at the same time reduce the squeezing strength of the clamping arm 21 on the outer shell 1, thereby increasing the service life of the handle 100.

[0041] like Figures 3 to 6As shown, in order to ensure the stability of the connection between the inner shell 2 and the outer shell 1, the clamping arms 21 include at least two, and are arranged at intervals along the circumference of the inner shell 2. Correspondingly, the clamping slots 11 also include at least two, and the number of the clamping slots 11 corresponds to the number of the clamping arms 21. Optionally, the number of the clamping arms 21 can be two, three, four, etc., and the clamping slots 11 also have a corresponding number of multiples, so that one clamping arm 21 is clamped with one clamping slot 11, thereby ensuring the stability of the connection between the inner shell 2 and the outer shell 1. In addition, the stopper arms 4 also include at least two, which are arranged in a one-to-one correspondence with the clamping arms 21, so as to prevent the corresponding clamping arms 21 from being separated from the clamping slots 11, thereby preventing the clamping arms 21 from being separated from the clamping slots 11 when the electric toothbrush is subjected to external impact. The inner shell 2 and the internal movement components are kept stable, thereby ensuring the normal use of the handle 100.

[0042] like Figures 3 to 6 As shown, a connection mechanism 5 is further arranged between the base 3 and the inner shell 2 to fix the base 3 to the inner shell 2, so that the inner shell 2, the outer shell 1 and the base 3 are tightly connected; further, the connection mechanism 5 includes a screw 51, and optionally, the connection mechanism 5 also includes a first connection column 52 arranged on the inner shell 2, and a second connection column 53 arranged on the base 3; the screw 51 passes through the second connection column 53 and is threadedly connected to the first connection column 52. Figure 3 and Figure 4 As shown, the first connecting column 52 is formed in the middle of the reinforcing portion 27, and the second connecting column 53 is formed in the middle of the base 3. When the base 3 is assembled to the outer shell 1, the first connecting column 52 abuts against the second connecting column 53 to form a blocking limit.

[0043] Furthermore, a brass column is embedded in the first connecting column 52 , and an internal thread is provided in the brass column so as to be connected with bolts to fix the base 3 to the outer shell 1 and the inner shell 2 .

[0044] In addition, in order to reduce the vibration between the outer shell 1 and the inner shell 2, the inner wall of the outer shell 1 or the outer wall of the inner shell 2 is provided with a limited rib to limit the movement of the two. In addition, a shock-absorbing structure such as an elastic liner and elastic foam is provided between the two to reduce shock, further improving the shock-absorbing and anti-fall effect of the handle 100 and extending the service life of the handle 100. A sealing ring is also provided between the base 3 and the outer shell 1 to improve the waterproof performance of the handle 100.

[0045] like Figures 1 to 6 As shown, the present application also provides a personal handheld device, including a handle 100, wherein the handle 100 includes the aforementioned housing structure. It should be noted that the personal handheld device of the present application can be an electric toothbrush, a shaver, a facial cleanser, etc., which adopts the aforementioned handle 100 structure, can resist the influence of external impact forces such as falling, and ensure the stability of the device.

[0046] The movement assembly includes a motor and a battery arranged below the motor. The motor and the battery are housed in the inner shell 2. The lower end of the battery can abut against the reinforcement part 27, so that the reinforcement part 27 is used to limit the position.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A housing structure of a personal handheld device, comprising an outer housing and an inner housing disposed in the outer housing; one end of the inner housing is open, an end of the inner housing close to the opening is provided with a clamping arm, and an inner wall of the outer housing is provided with a clamping groove for clamping the clamping arm; characterized in that: A reinforcement portion is further provided at one end of the inner shell body close to the opening, and the reinforcement portion is configured to block at least a portion of the opening, and the clamping arms are distributed on one side where the connection between the reinforcement portion and the inner shell body is located.

2. The housing structure of the personal handheld device according to claim 1, characterized in that: The reinforcement portion includes a reinforcement end plate, and the reinforcement end plate at least connects two opposite sides of the inner shell.

3. The housing structure of the personal handheld device according to claim 2, characterized in that: The reinforcement portion further includes a convex rib structure formed on the reinforcement end plate.

4. The housing structure of the personal handheld device according to claim 2, characterized in that: The inner shell includes a first shell and a second shell, the first shell and the second shell together form the opening, the reinforcing end plate and the clamping arm are integrally arranged with the first shell, and the second shell is detachably connected to the reinforcing end plate.

5. The housing structure of the personal handheld device according to any one of claims 1 to 4, characterized in that: An assembly opening for assembling the inner shell is provided at one end of the outer shell body close to the opening, and a base is attached to the assembly opening; The base is provided with a stop arm extending toward the opening, and the stop arm abuts against a side of the clamping arm away from the clamping slot.

6. The housing structure of the personal handheld device according to claim 5, characterized in that: The reinforcing portion and the clamping arm are spaced apart in a direction perpendicular to the opening direction of the opening, the stop arm is inserted into the space, and the side of the stop arm facing away from the clamping arm is also in contact with the reinforcing portion.

7. The housing structure of the personal handheld device according to claim 6, characterized in that: The stop arm is plate-shaped and is further provided with reinforcing ribs.

8. The housing structure of the personal handheld device according to claim 5, characterized in that: The clamping arms include at least two, and the two clamping arms are distributed at intervals along the circumference of the inner shell. The stop arms include at least two, and the stop arms correspond to the clamping arms one by one.

9. The housing structure of the personal handheld device according to claim 5, characterized in that: A first connecting column is further provided on a side of the reinforcing portion facing the base. The first connecting column is provided with a screw hole, and the base is screwed and fixed to the screw hole by screws.

10. A personal handheld device, characterized in that: A handle is included, wherein the handle includes a housing structure as described in any one of claims 1-9.

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