Anti-falling replaceable brush head

Abstract

The utility model discloses an anti-drop replaceable brush head which comprises a transmission connection structure and a conduction structure, a wear-resistant metal sheet is fixedly installed at the upper end of the transmission connection structure, a brush head structure is spirally installed at the upper end of the conduction structure, and the transmission connection structure comprises a transmission rod, a butt joint sliding groove, an upper clamping groove and a lower clamping groove. Butt-joint sliding grooves are formed in the halving positions of the cambered surface of the transmission rod correspondingly, and lower clamping grooves are formed in the lower ends of the side faces of the butt-joint sliding grooves correspondingly. According to the anti-falling replaceable brush head, only the brush head structure needs to be detached and replaced, so that the conduction structure does not need to be replaced, the production cost of the part is reduced, the replacement cost of the replaceable brush head is reduced, the selling price is reduced, and the purchasing capacity of consumers is improved; two locking structures, namely the conduction structure and the brush head structure, are fixed through the lower clamping groove and the upper clamping groove and then are pressed through the elastic piece, so that the fixing is firmer, and loosening is avoided.

Description

Technical Field

[0001] The utility model relates to the field of electric toothbrushes, in particular to a replacement brush head which is anti-falling off. Background Art

[0002] Through the rapid rotation or vibration of the electric motor, the brush head produces high-frequency vibration, which instantly breaks down the toothpaste into fine foam and deeply cleans the gaps between teeth. At the same time, the vibration of the bristles can promote blood circulation in the oral cavity and have a massage effect on the gum tissue. During the use of the electric toothbrush, the brush head is a consumable item for later use and needs to be replaced after a certain period of use. Therefore, when replacing the brush head, the connecting rod under the brush head needs to be replaced. Because the entire brush head needs to be replaced and the overall production cost is high, the sales price also rises, which increases the purchasing burden on consumers. For this reason, we propose an anti-shedding replacement brush head. Utility Model Content

[0003] The main purpose of the utility model is to provide a replacement brush head that prevents falling off, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A replacement brush head that prevents falling off comprises a transmission connection structure and a conduction structure. A wear-resistant metal sheet is fixedly mounted on the upper end of the transmission connection structure, and a brush head structure is spirally mounted on the upper end of the conduction structure.

[0006] Furthermore, the transmission connection structure includes a transmission rod, a docking groove, an upper clamping groove and a lower clamping groove. The arc surface of the transmission rod is divided into two equal parts by a docking groove, the lower end of the side of the docking groove is provided with a lower clamping groove, and the upper end of the side of the docking groove is provided with an upper clamping groove.

[0007] Furthermore, the conduction structure includes a conduction shell, an interpenetration channel, a lower clamping block and a connecting spiral groove. The conduction shell is provided with an interpenetration channel in the middle part, and the inner surface of the interpenetration channel is fixedly installed with a lower clamping block near the lower end of the bisection position, and the upper end of the conduction shell is provided with a connecting spiral groove.

[0008] Furthermore, the connecting spiral groove is communicated with the interpenetrating channel.

[0009] Furthermore, the brush head structure includes a brush plate, a brush, a spiral tube, a spring piece and an upper clamping block. The brush is fixedly installed on the surface of the brush plate, the lower end of the brush plate is fixedly connected to the spiral tube, the inner upper surface of the spiral tube is fixedly installed with spring pieces at two equal parts, and the inner arc surface of the spiral tube is fixedly installed with upper clamping blocks at two equal parts.

[0010] Further, the brush head structure is connected to the conduction structure by screwing a spiral tube into a spiral groove. The transmission connection structure is connected and installed with the brush head structure and the conduction structure by clamping an upper clamping block and a lower clamping block into an upper clamping groove and a lower clamping groove respectively. A toothbrush main body is fixedly connected to the lower end of the transmission connection structure.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the replaceable brush head only needs to disassemble and replace the brush head structure, so there is no need to replace the conduction structure, reducing the production cost of this part, thereby reducing the replacement cost of the replaceable brush head, lowering the selling price, and further improving the purchasing power of consumers. After the conduction structure and the brush head structure are fixed by the locking structures of the lower clamping groove and the upper clamping groove, they are further pressed by elastic pieces, making the fixation more reliable and avoiding loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an overall structural schematic diagram of a replaceable brush head with anti - detachment of the utility model;

[0014] Figure 2 is a disassembly display diagram of a replaceable brush head with anti - detachment of the utility model;

[0015] Figure 3 is a partial sectional display diagram of a replaceable brush head with anti - detachment of the utility model;

[0016] Figure 4 is a Figure 3 magnified view at C of a replaceable brush head with anti - detachment of the utility model;

[0017] Figure 5 is a Figure 2 magnified view at A of a replaceable brush head with anti - detachment of the utility model;

[0018] Figure 6 is a Figure 2 magnified view at B of a replaceable brush head with anti - detachment of the utility model.

[0019] In the figure: 1. Transmission connection structure; 101. Transmission rod; 102. Docking chute; 103. Upper clamping groove; 104. Lower clamping groove; 2. Wear - resistant metal sheet; 3. Conduction structure; 301. Conduction housing; 302. Interpenetrating channel; 303. Lower clamping block; 304. Connecting spiral groove; 4. Brush head structure; 401. Brush plate; 402. Brush bristles; 403. Spiral tube; 404. Elastic piece; 405. Upper clamping block; 5. Toothbrush main body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Embodiment 1:

[0022] As Figures 1-6 shown, a detachable replacement brush head includes a transmission connection structure 1 and a conduction structure 3. A wear-resistant metal sheet 2 is fixedly installed at the upper end of the transmission connection structure 1, and a brush head structure 4 is spirally installed at the upper end of the conduction structure 3;

[0023] The transmission connection structure 1 includes a transmission rod 101, a docking chute 102, an upper card slot 103 and a lower card slot 104. Docking chutes 102 are provided at the arc bisecting positions of the transmission rod 101. Lower card slots 104 are provided at the lower side positions of the docking chutes 102, and upper card slots 103 are provided at the upper side positions of the docking chutes 102. The conduction structure 3 includes a conduction housing 301, an insertion channel 302, a lower card block 303 and a connection spiral groove 304. An insertion channel 302 is provided in the middle of the conduction housing 301. Lower card blocks 303 are fixedly installed at the inner surface of the insertion channel 302 near the lower bisecting positions. A connection spiral groove 304 is provided at the upper end of the conduction housing 301. The connection spiral groove 304 communicates with the insertion channel 302. The brush head structure 4 includes a brush plate 401, a brush 402, a spiral tube 403, a spring piece 404 and an upper card block 405. A brush 402 is fixedly installed on the surface of the brush plate 401. The lower end of the brush plate 401 is fixedly connected to a spiral tube 403. Spring pieces 404 are fixedly installed at the inner upper surface bisecting positions of the spiral tube 403. The spring pieces 404 can be pressed to avoid loosening after the upper card block 405 and the lower card block 303 are inserted into the upper card slot 103 and the lower card slot 104, and the spiral tube 403 will not be loosened from the connection spiral groove 304 after being pressed. Upper card blocks 405 are fixedly installed at the inner arc bisecting positions of the spiral tube 403. The brush head structure 4 is connected to the conduction structure 3 by screwing the spiral tube 403 into the connection spiral groove 304. The transmission connection structure 1 is connected and installed to the brush head structure 4 and the conduction structure 3 by inserting the upper card block 405 and the lower card block 303 into the upper card slot 103 and the lower card slot 104 respectively. The lower end of the transmission connection structure 1 is fixedly connected to a toothbrush main body 5.

[0024] It should be noted that the present utility model is a detachable replaceable brush head. When in use, first screw the spiral tube 403 into the connecting spiral groove 304. When the spiral tube 403 is completely screwed into the connecting spiral groove 304, the upper clamping block 405 is exactly above the lower clamping block 303. Then align the upper port of the docking sliding groove 102 of the transmission rod 101 with the lower clamping block 303 and insert it. The upper port of the docking sliding groove 102 can just embed the upper clamping block 405. Then push the transmission rod 101 upward to squeeze the elastic piece 404. Next, twist the toothbrush main body 5 to make the transmission rod 101 rotate, so that the upper clamping block 405 and the lower clamping block 303 are respectively clamped into the upper clamping groove 103 and the lower clamping groove 104. After clamping, it can be released, and thus the installation is completed.

[0025] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A detachable replacement brush head, characterized in that: It includes a transmission connection structure (1) and a conduction structure (3). A wear-resistant metal sheet (2) is fixedly installed at the upper end of the transmission connection structure (1). A brush head structure (4) is helically installed at the upper end of the conduction structure (3). The transmission connection structure (1) includes a transmission rod (101), a docking chute (102), an upper card slot (103), and a lower card slot (104). Docking chutes (102) are provided at the bisecting positions of the arc surface of the transmission rod (101). Lower card slots (104) are provided at the lower side positions of the sides of the docking chutes (102). Upper card slots (103) are provided at the upper side positions of the sides of the docking chutes (102). The conduction structure (3) includes a conduction housing (301), an insertion channel (302), a lower card block (303), and a connection spiral groove (304). An insertion channel (302) is provided in the middle of the conduction housing (301). Lower card blocks (303) are fixedly installed at the bisecting positions near the lower end of the inner surface of the insertion channel (302). A connection spiral groove (304) is provided at the upper end of the conduction housing (301). The brush head structure (4) includes a brush plate (401), a brush (402), a spiral tube (403), a shrapnel (404), and an upper card block (405). A brush (402) is fixedly installed on the surface of the brush plate (401). The lower end of the brush plate (401) is fixedly connected to a spiral tube (403). Shrapnels (404) are fixedly installed at the bisecting positions of the upper inner surface of the spiral tube (403). Upper card blocks (405) are fixedly installed at the bisecting positions of the inner arc surface of the spiral tube (403).

2. The replaceable brush head with anti-detachment according to claim 1, characterized in that: The connection spiral groove (304) communicates with the insertion channel (302).

3. The replaceable brush head with anti - shedding according to claim 1, wherein: The brush head structure (4) is connected to the conduction structure (3) by screwing the spiral tube (403) into the connection spiral groove (304). The transmission connection structure (1) is connected and installed to the brush head structure (4) and the conduction structure (3) by respectively snapping the upper card block (405) and the lower card block (303) into the upper card slot (103) and the lower card slot (104). The lower end of the transmission connection structure (1) is fixedly connected to a toothbrush main body (5).

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