Folding toothbrush

Abstract

The utility model discloses a folding toothbrush which comprises a brush handle and a brush arm, a brush head is arranged on the front face of the upper end of the brush arm, and the front face of the lower end of the brush arm is hinged to the upper end of the brush handle through a pin shaft. A vertical upper hole is formed in the back face of the lower end of the brush arm, and a notch extending to the outer side of the brush arm is formed in the back face of the upper hole. A lower hole is formed in the upper end of the brush handle, and a sliding groove is formed in the back face of the lower hole. The locking rod comprises a vertical rod and a pushing block, the vertical rod vertically penetrates through the pushing block and then is inserted into the lower hole, a spring is arranged in the lower hole, the lower end of the vertical rod is inserted into an inner hole of the spring, the top of the spring is attached to the lower surface of the pushing block, the pushing block slides up and down in the sliding groove, and the pushing block is inserted into the sliding groove. The fixed part of the folding toothbrush has the advantages of high strength, long service life and the like.

Description

Technical Field

[0001] This utility model relates to the field of toothbrush technology, specifically a folding toothbrush. Background Technology

[0002] Currently, most folding toothbrushes on the market, and the existing folding technologies, are hinged with pins, allowing them to rotate freely. They cannot be precisely positioned in the open or closed state; when open and in use, they lack sufficient rigidity to maintain a fixed shape, making them inconvenient to use.

[0003] To address the aforementioned issue, CN201234715Y discloses a foldable toothbrush that employs barbs at a certain angle between the handle and the brush arm. When fully opened, applying a certain external force causes the barbs to elastically deform and hook together. Although this structure can fix the toothbrush in place, the barbs are prone to wear or breakage, leading to premature damage. Utility Model Content

[0004] The purpose of this invention is to provide a folding toothbrush to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A folding toothbrush includes a handle and a brush arm, wherein a brush head is provided on the upper front of the brush arm, and the lower front of the brush arm is hinged to the upper end of the handle by a pin.

[0007] The lower end of the brush arm has a vertical upper hole on its back, and the back of the upper hole has a notch extending to the outside of the brush arm.

[0008] The upper end of the brush handle is provided with a lower hole, and the back of the lower hole is provided with a sliding groove;

[0009] The locking rod includes a vertical rod and a push block. The vertical rod passes vertically through the push block and is inserted into the lower hole. A spring is provided in the lower hole. The lower end of the vertical rod is inserted into the inner hole of the spring. The top of the spring is in contact with the lower surface of the push block. The push block slides up and down in the slide groove. The rear end of the push block extends out of the outside of the slide groove to facilitate pushing with a finger.

[0010] Optionally, the spring is made of plastic.

[0011] Optionally, the height of the notch is smaller than the diameter-depth of the upper hole.

[0012] Beneficial effects:

[0013] The fixed part of this folding toothbrush has the advantages of high strength and long life. Attached Figure Description

[0014] Figures 1 to 2 This is a schematic diagram of the structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the present invention;

[0016] Figure 4 and Figure 5 for Figure 3 A magnified view of a portion of the image;

[0017] In the picture:

[0018] 1-Brush handle, 2-Brush arm, 3-Brush head, 4-Spring, 5-Locking lever;

[0019] 1a-Slide groove, 1b-Lower hole;

[0020] 2a - Top hole, 2b - Notch;

[0021] 5a - Vertical rod, 5b - Push block. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 and Figure 5 The present invention provides a technical solution as follows:

[0024] A folding toothbrush includes a handle 1 and a brush arm 2. The upper front of the brush arm 2 is provided with a brush head 3, and the lower front of the brush arm 2 is hinged to the upper end of the handle 1 by a pin.

[0025] The lower end of the brush arm 2 has a vertical upper hole 2a on the back, and the back of the upper hole 2a has a notch 2b extending to the outside of the brush arm 2.

[0026] The upper end of the brush handle 1 is provided with a lower hole 1b, and the back of the lower hole 1b is provided with a sliding groove 1a. The lower hole 1b is directly opposite the upper hole 2a. It should be noted that the height dimension of the notch 2b is smaller than the diameter and depth dimension of the upper hole 2a.

[0027] The locking rod 5 includes a vertical rod 5a and a push block 5b. The vertical rod 5a passes vertically through the push block 5b and is inserted into the lower hole 1b. A spring 4 is provided in the lower hole 1b. The lower end of the vertical rod 5a is inserted into the inner hole of the spring 4. The top of the spring 4 is in contact with the lower surface of the push block 5b. The push block 5b slides up and down in the slide groove 1a. The rear end of the push block 5b extends out of the outside of the slide groove 1a to facilitate pushing with a finger.

[0028] In use, the left and right hands respectively bend the brush handle 1 and brush arm 2 outwards. Generally, the left hand holds the brush handle 1, and the left thumb pushes the push block 5b downwards so that the extension length of the vertical rod 5a is lower than the height of the notch 2b. Then the vertical rod 5a is pushed into the upper hole 2a. Then the push block 5b is released, and under the action of the spring 4, the upper end of the vertical rod 5a is lifted upwards and inserted into the upper hole 2a. Compared with the structure in the background art, this structure has the advantages of high strength and long service life.

[0029] Since toothbrushes need to be replaced every few months, the spring 4 is made of plastic.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A folding toothbrush, characterized in that, It includes a brush handle and a brush arm, with a brush head provided on the upper front of the brush arm, and the lower front of the brush arm is hinged to the upper end of the brush handle by a pin. The lower end of the brush arm has a vertical upper hole on its back, and the back of the upper hole has a notch extending to the outside of the brush arm. The upper end of the brush handle is provided with a lower hole, and the back of the lower hole is provided with a sliding groove; The locking rod includes a vertical rod and a push block. The vertical rod passes vertically through the push block and is inserted into the lower hole. A spring is provided in the lower hole. The lower end of the vertical rod is inserted into the inner hole of the spring. The top of the spring is in contact with the lower surface of the push block. The push block slides up and down in the slide groove. The rear end of the push block extends out of the outside of the slide groove to facilitate pushing with a finger.

2. A folding toothbrush according to claim 1, characterized in that, The spring is made of plastic.

3. A folding toothbrush according to claim 2, characterized in that, The height of the notch is smaller than the diameter and depth of the upper hole.

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