CN220801153U - Dental floss holder - Google Patents

Abstract

The application relates to a dental floss rack, which relates to the technical field of oral cavity cleaning tools and comprises a rack body, wherein one end of the rack body is provided with a pick-up part, the other end of the rack body is provided with two supporting arms for winding dental floss wires, hooks for winding dental floss are respectively extended from one ends of the two supporting arms, which are far away from the pick-up part, of the two supporting arms, the upper ends of the supporting arms are respectively provided with a wire winding groove for winding dental floss wires, a movable block for disassembling dental floss is detachably connected to the rack body, and the movable block is positioned at the upper end of the rack body. After tooth picking is finished, a user can directly detach the movable block from the frame body, at the moment, the movable block can directly bring down dental floss, and the user can easily take down dental floss from the dental floss frame, so that the convenience is high.

Description

Dental floss holder

Technical Field

The application relates to the technical field of oral cavity cleaning tools, in particular to a dental floss holder.

Background

Because the toothpick is thicker, the toothpick is difficult to penetrate into the tooth gaps, the cleaning effect is greatly reduced, and if the toothpick is used for a long time, the tooth gaps are enlarged; the appearance of dental floss in the market is a new revolution of a tooth cleaning mode, thousands of people are benefited from the dental floss, the trouble of dental diseases is relieved, periodontal health is maintained, and other diseases caused by the dental diseases are reduced.

Dental floss is very common in developed countries, is an indispensable living necessity for home travel of people, and is used for self-cleaning teeth after meals, just like people washing hands before meals and rinsing mouths after meals, and becomes an indispensable program in daily life.

Dental floss is made of nylon threads, silk threads or polyester threads for cleaning dental plaque on the adjacent surface; in use, a length of floss is pulled down by about 25cm, a double-sided loop is formed at both ends of the floss, or about 33cm of floss is taken, both ends of the floss are wound on two middle fingers, and the floss is passed through the contact point by the right and left fingers.

When the dental floss holder is used for picking teeth, the dental floss holder is long, so that the dental floss can be stretched into the oral cavity of a user, and the large tooth gaps of the user are deeply cleaned, so that the dental floss holder is favored by a plurality of users in the market.

In view of the above-mentioned related art, when the floss is wound on the floss holder, the user is urgent to pick teeth, so that the floss is easy to be wound on the floss holder at will; when a user needs to take down the dental floss wound on the dental floss rack after tooth picking, the end part of the dental floss wire is difficult to directly find, and the convenience of taking down the dental floss wire from the dental floss rack is low.

Disclosure of utility model

In order to improve the convenience of a user in taking down dental floss, the application provides a dental floss holder.

The application provides a dental floss frame, which adopts the following technical scheme:

The dental floss rack comprises a rack body, one end of the rack body is provided with a pick-up part, the other end of the rack body is provided with two support arms for winding dental floss wires, one ends of the two support arms, which are far away from the pick-up part, are all extended with hooks for winding dental floss, the upper end of the support arms are all provided with wire winding grooves for winding dental floss wires, movable blocks for disassembling dental floss are detachably connected to the rack body, and the movable blocks are positioned at the upper end of the rack body.

Through adopting above-mentioned technical scheme, after picking teeth, the user can directly dismantle the movable block from the support body, and the movable block can directly take down the dental floss this moment, and the user can be very light take down the dental floss silk from the dental floss frame, and the convenience is higher.

Optionally, the recess that is used for placing the forefinger has been seted up to the up end of movable block, and the movable block deviates from the one side extension in recess and has the location protruding, and the protruding lower tip in location is equipped with the threaded rod, and the support body has seted up the screw hole with the threaded rod adaptation.

By adopting the technical scheme, before the dental floss is wound, a user rotates the threaded rod into the threaded hole; then the dental floss wire can be wound on the threaded rod between the positioning convex and the frame body, tooth picking can be performed, when tooth picking is performed, a user can place an index finger on the concave groove, then the dental floss rack can be better picked up, and the position where tooth picking is needed is positioned; after the use is finished, the user can drive the threaded rod to rotate through rotating the movable block, the threaded rod is rotated to the outside of the threaded hole, then the user can hold the dental floss silk on the support arm, the whole dental floss silk is taken down, and convenience is high.

Optionally, the circumference of movable block is frosted surface setting.

Through adopting above-mentioned technical scheme, because the frictional force of frosting is great, the user is when taking off the movable block, can hold the portion of picking up with the singlehanded, then the thumb is laminated with the lateral wall of movable block mutually, then upwards promote the movable block can, can very light unscrew the movable block, and then improve the convenience of dismantling the movable block, the user can be very light take off the dental floss from the dental floss frame, and the user takes off the convenience of dental floss higher.

Optionally, a plurality of protruding teeth are uniformly spaced in the circumferential direction of the movable block.

Through adopting above-mentioned technical scheme, when dismantling the movable block, the user can place protruding tooth length direction's one side in with the thumb, then buckle the direction that is close to the recess with the thumb, then can very light rotation movable block come unscrew the movable block, and the user can very light take off the dental floss silk from the dental floss frame, and the user takes off the convenience of dental floss higher.

Optionally, grooves are formed at two ends of the width direction of the plurality of protruding teeth, and the grooves are located at one end of the protruding teeth, which is close to the movable block.

Through adopting above-mentioned technical scheme, when dismantling the movable block, the user can laminate thumb and protruding tooth length direction's one side completely, then promotes the movable block with the thumb to the direction that is close to the recess, stretches into the inside of recess with the nail, then can very light rotation movable block come with the movable block unscrew, then can take off the dental floss silk from the dental floss frame, and the convenience that the user took off the dental floss is higher.

Optionally, the edges of the protruding teeth are rounded.

By adopting the technical scheme, when the fingers of a user are contacted with the raised teeth, the effect of protecting the fingers of the user can be achieved.

Optionally, the center department of support body is equipped with the boss, and the standing groove that is used for placing movable block is offered to the boss, and movable block keeps away from the one end of picking up the portion and extends to have and be used for twining the tooth wire loop on the crotch, and movable block width direction's both ends all set up to the one side slope that is close to the tooth wire loop, and movable block is close to the one end of tooth wire loop and is established to the portion of pressing, and the width of pressing the portion is less than the width of movable block other end, standing groove and movable block adaptation, and the standing groove is close to one side intercommunication that the support arm has dodges the mouth, dodges the mouth and offers in the one side that the boss is close to the support arm.

Through adopting above-mentioned technical scheme, when the installation, the user at first overlaps the dental floss ring on the crotch, then laminates the dental floss ring on the wire winding groove, then places the movable block in the standing groove and accomplish the installation, then the user can pick teeth, after picking teeth, the user directly takes out the movable block from the standing groove and can accomplish the dismantlement of movable block and dental floss ring, simple structure, easy dismounting.

Optionally, the one end that the standing groove kept away from the support arm is equipped with a plurality of protruding posts, and a plurality of protruding posts set up mutually symmetrically, and the width and the thickness of a plurality of protruding posts are by last diminishing down gradually, and the inside of standing groove is located to a plurality of protruding post subtends, and the movable block is located inside the standing groove, and protruding post all with movable block butt.

Through adopting above-mentioned technical scheme, the user is after picking teeth, presses the other end perk that presses the portion through the finger and can drive the movable block, then the user can be very light take off the movable block, and then take out the movable block from the standing groove and can accomplish the dismantlement of movable block and tooth wire loop, simple structure, easy dismounting.

Optionally, a protruding block extends from one end of the movable block away from the support arm.

Through adopting above-mentioned technical scheme, after picking teeth, when the user wants to take out movable block from the standing groove, can place the nail between protruding piece and support body, then upwards scratch protruding piece, and then scratch out movable block from the standing groove, and then improve the convenience of dismantling movable block.

Optionally, an extending groove is formed at one end of the movable block, which is far away from the supporting arm.

After tooth picking is finished, when a user wants to take out the movable block from the placing groove, the user can place nails into the placing groove, then pull out the protruding block upwards, then pull out the movable block from the placing groove, and further the convenience of disassembling the movable block is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after tooth picking is finished, a user can directly detach the movable block from the frame body, at the moment, the movable block can directly bring down dental floss, and the user can easily take down dental floss from the dental floss frame, so that the convenience is high;

2. Before winding the dental floss, a user rotates the threaded rod into the threaded hole; then the dental floss wire can be wound on the threaded rod between the positioning convex and the frame body, tooth picking can be performed, when tooth picking is performed, a user can place an index finger on the concave groove, then the dental floss rack can be better picked up, and the position where tooth picking is needed is positioned; after the use is finished, a user can drive the threaded rod to rotate through rotating the movable block, the threaded rod is rotated to the outside of the threaded hole, then the user can hold the dental floss on the supporting arm by hand, and the whole dental floss is taken down, so that the convenience is high;

3. After the tooth picking is finished, a user can drive the other end of the movable block to tilt by pressing the pressing part through fingers, then the user can take down the movable block very easily, and then the movable block can be taken out from the placing groove to complete the disassembly of the movable block and the dental floss ring, and the tooth picking device is simple in structure and convenient to disassemble and assemble.

Drawings

Fig. 1 is a schematic overall structure of the first embodiment.

Fig. 2 is a schematic view showing the overall structure of the hook in the first embodiment.

Fig. 3 is an enlarged schematic view of the portion a in fig. 2.

Fig. 4 is a schematic cross-sectional view highlighting a threaded rod and a threaded bore.

Fig. 5 is a schematic overall structure of the second embodiment.

Fig. 6 is a schematic overall structure of the third embodiment.

Fig. 7 is a schematic overall structure of the fourth embodiment.

Fig. 8 is a schematic overall structure of the fifth embodiment.

Fig. 9 is a schematic overall structure of the sixth embodiment.

FIG. 10 is a schematic view showing a placement groove in a sixth embodiment.

Fig. 11 is a schematic overall structure of the seventh embodiment.

Fig. 12 is a schematic overall structure of the eighth embodiment.

Fig. 13 is a schematic overall structure of a ninth embodiment.

Fig. 14 is a schematic overall structure of the tenth embodiment.

Fig. 15 is a schematic overall structure of the eleventh embodiment.

Fig. 16 is an enlarged schematic view of a portion B in fig. 15.

Reference numerals illustrate: 1. a frame body; 11. a pick-up part; 12. a boss; 13. a placement groove; 131. a protruding column; 14. an avoidance port; 2. a support arm; 21. a hook; 22. a wire winding groove; 23. a threaded hole; 3. a movable block; 31. a threaded rod; 32. positioning the convex; 33. a concave groove; 34. raised teeth; 35. a groove; 36. a dental floss ring; 37. a pressing part; 38. a protruding block; 39. extend into the groove; 4. a pinch lever; 5. a cutting blade; 51. a cutter body I; 6. a sliding port; 61. a sliding block; 7. a floss barrel; 71. a cutter body II; 8. and (5) a wire outlet hole.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a dental floss holder.

Embodiment one:

Referring to fig. 1 and 2, the dental floss holder includes a holder body 1, one end of the holder body 1 is provided with a pick-up portion 11, and the other end of the holder body 1 is provided with two support arms 2 for winding dental floss.

Referring to fig. 1 and 3, hooks 21 for winding dental floss are extended from one ends of the two support arms 2 far away from the pick-up part 11, wire winding grooves 22 for winding dental floss are formed in the upper ends of the support arms 2, when a user needs to pick teeth, the dental floss is sheared into a proper length, and a movable block 3 for disassembling the dental floss is detachably connected to the frame body 1.

Referring to fig. 3 and 4, a positioning protrusion 32 extends from one side of the movable block 3 away from the concave groove 33, a threaded rod 31 is arranged at the lower end of the positioning protrusion 32, and a threaded hole 23 matched with the threaded rod 31 is formed in the frame body 1;

Before picking teeth, a user rotates the threaded rod 31 into the threaded hole 23 in advance, the movable block 3 is positioned at the upper end part of the frame body 1, the upper end part of the movable block 3 is provided with a concave groove 33 for placing the index finger of the user, one side of the movable block 3, which is away from the concave groove 33, extends to form a positioning protrusion 32, the user winds one end of the dental floss onto the positioning protrusion 32, then winds the dental floss onto the supporting arm 2, and sequentially hangs the dental floss onto the two hooks 21.

Referring to fig. 1 and 3, the user then rewinds the floss onto the positioning projections 32, and then places the floss on the support arm 2 inside the wire winding groove 22, and the user can begin picking teeth.

Referring to fig. 1 and 4, when a user picks teeth, the user can hold the pick-up portion 11 by using the palm of a single hand and then push the index finger of the hand against the position of the concave groove 33, so that the stability of the user's pick-up frame 1 can be improved, and when the user picks teeth, the user can position the dental floss by using the index finger and position the position needing to pick teeth by using the index finger, thereby improving the accuracy of picking teeth of the user and further improving the comfort of picking teeth of the user.

Referring to fig. 1 and 4, the movable block 3 is in a cylindrical shape, after the user picks teeth, the user can pinch two sides of the movable block 3 by hand, then rotate the movable block 3, further drive the threaded rod 31 to rotate, unscrew the threaded rod 31 from the threaded hole 23, and further disconnect the movable block 3 from the frame 1; at this time, the movable block 3 can directly take down the dental floss, and then a user can easily take down the dental floss, so that the convenience of the user for disassembling the dental floss is high.

The frame body 1 may be made of stainless steel or plastic, and has a supporting effect on the dental floss.

The movable block 3 can be made of stainless steel or plastic, and can be wound with dental floss.

The embodiment of the application provides a dental floss holder, which comprises the following implementation principles: when a user is ready to pick teeth, firstly, the dental floss is wound on the positioning convex part 32 for one circle, then the dental floss is sequentially wound on the two hooks 21, then the dental floss is wound on the positioning convex part 32 again, then the dental floss on the supporting arm 2 is placed into the corresponding wire winding groove 22, then the user can start to pick teeth, and when picking teeth, the user can put the index finger into the concave groove 33 to position the dental floss, so that the accuracy of the user in tooth picking is improved; after tooth picking is finished, a user can complete the disassembly between the movable block 3 and the frame body 1 by rotating the movable block 3, and the tooth picking machine has a simple structure and is convenient to disassemble; after the dental floss is detached, the dental floss can be directly taken down by the movable block 3, then a user can easily take down the dental floss, and the convenience of the user for detaching the dental floss is higher.

Embodiment two:

referring to fig. 5, the second embodiment differs from the first embodiment in that the movable block 3 is provided differently.

Referring to fig. 5, the movable block 3 is provided with a frosted surface in the circumferential direction, and when the user's finger is in contact with the circumferential surface of the movable block 3, the friction between the skin of the user's finger and the frosted surface is large; when the movable block 3 needs to be taken down, a user can hold the pick-up part 11 by one hand, then the thumb of the hand is utilized to be attached to the side wall of the movable block 3, and then the movable block 3 is pushed upwards, so that the movable block 3 can be easily unscrewed, the convenience of disassembling the movable block 3 is improved, the user can easily take down the dental floss from the dental floss frame, and the convenience of taking down the dental floss by the user is higher.

Embodiment III:

Referring to fig. 6, the third embodiment differs from the first embodiment in that the movable block 3 is provided differently.

Referring to fig. 6, a plurality of protruding teeth 34 are circumferentially and equidistantly arranged on the movable block 3, grooves 35 are formed at two ends of the protruding teeth 34 in the width direction, and the grooves 35 are positioned at one end, close to the movable block 3, of the protruding teeth 34; after tooth picking is finished, when a user wants to detach the dental floss, the user can hold the pick-up part 11 by one hand and then push the raised teeth 34 upwards or downwards, the edges of the raised teeth 34 are all round corners, and when the fingers of the user are contacted with the raised teeth 34, the effect of protecting the fingers of the user can be achieved;

Along with user's promotion, and then drive movable block 3 and rotate, with threaded rod 31 unscrew to the outside of screw hole 23, can be very light unscrew movable block 3, and then improve the convenience of dismantling movable block 3, the user can be very light take off the dental floss silk from the dental floss frame, and the user takes off the convenience of dental floss higher.

Embodiment four:

Referring to fig. 7, the fourth embodiment differs from the first embodiment in that the movable block 3 is provided differently.

Referring to fig. 7, grooves 35 are formed at both ends of the width direction of the plurality of protruding teeth 34, the grooves 35 are located at one end of the protruding teeth 34 close to the movable block 3, after the teeth picking of a user is finished, when the movable block 3 is detached, the user can completely attach the thumb to one side of the length direction of the protruding teeth 34, then bend the thumb towards the direction close to the grooves 35, extend the nails into the grooves 35, then can easily rotate the movable block 3 to unscrew the movable block 3, then can take down dental floss from a dental floss rack, and the convenience of taking down dental floss by the user is high.

Fifth embodiment:

Referring to fig. 8, the fifth embodiment differs from the first embodiment in that the movable block 3 is provided differently and the frame 1 is provided differently.

Referring to fig. 8, a boss 12 is provided at the center of the frame body 1, a placement groove 13 for placing the movable block 3 is provided at the boss 12, a dental wire loop 36 for winding onto the hook 21 is extended at one end of the movable block 3 far from the pick-up part 11, both ends of the movable block 3 in the width direction are inclined toward one side close to the dental wire loop 36, one end of the movable block 3 close to the dental wire loop 36 is provided with a pressing part 37, the width of the pressing part 37 is smaller than that of the other end of the movable block 3, the placement groove 13 is adapted to the movable block 3, an avoidance opening 14 is communicated at one side of the placement groove 13 close to the support arm 2, and the avoidance opening 14 is provided at one side of the boss 12 close to the support arm 2;

When a user installs the dental floss ring 36 on the frame body 1, the user firstly sleeves the dental floss ring 36 on the hook 21, then attaches the dental floss ring 36 on the wire winding groove 22, then places the dental floss ring 36 in the avoiding opening 14, then places the movable block 3 in the placing groove 13 to finish installation, and then the user can pick teeth; after tooth picking is finished, a user can directly take out the movable block 3 from the placing groove 13 to finish the disassembly of the movable block 3 and the dental floss ring 36, and the tooth picking device has a simple structure and is convenient to disassemble and assemble.

The material of the dental floss ring 36 may be the same as or different from the dental floss, and the dental floss ring may have a tooth picking effect.

One end of the dental floss ring 36 is fixedly connected with the movable block 3, and the other end of the dental floss ring 36 is also fixedly connected with the movable block 3.

Example six:

Referring to fig. 9 and 10, the sixth embodiment differs from the first embodiment in that the arrangement of the frame body 1 is different.

Referring to fig. 9 and 10, one end of the placement groove 13 far away from the support arm 2 is provided with a plurality of protruding columns 131, the protruding columns 131 are symmetrically arranged with each other, the width and thickness of the protruding columns 131 are gradually reduced from top to bottom, and the protruding columns 131 are oppositely arranged in the placement groove 13; when the movable block 3 is positioned in the placing groove 13, the convex columns 131 are all abutted with the movable block 3, the movable block 3 is made of plastic, and along with the fact that the movable block 3 is placed in the placing groove 13 and is extruded by the convex columns 131, the movable block 3 deforms and retracts inwards;

When the user wants to dismantle the movable block 3, the user can press the pressing part 37 by using fingers, at the moment, one end of the movable block 3, which is far away from the pressing part 37, is lifted upwards, then the user can easily take out the movable block 3 from the placing groove 13, and then the user can take out the movable block 3 from the placing groove 13 to complete the disassembly of the movable block 3 and the dental wire ring 36, and the detachable dental wire ring has a simple structure and is convenient to disassemble and assemble.

Embodiment seven:

Referring to fig. 11, the seventh embodiment differs from the first embodiment in that the movable block 3 is provided differently.

After tooth picking, a user can place nails between the protruding blocks 38 and the frame body 1 when want to take out the movable blocks 3 from the placing grooves 13, then scratch the protruding blocks 38 upwards, then scratch the movable blocks 3 from the placing grooves 13, and further improve the convenience of disassembling the movable blocks 3.

Example eight:

Referring to fig. 12, the eighth embodiment differs from the first embodiment in that the movable block 3 is provided differently.

Referring to fig. 12, after tooth picking, when the user wants to take out the movable block 3 from the placement groove 13, the user can place the nails inside the extending groove 39, then pull the nails upwards into the groove 39, and then pull the movable block 3 out of the placement groove 13, thereby improving the convenience of removing the movable block 3.

Example nine:

Referring to fig. 13, the ninth embodiment differs from the first embodiment in that the movable block 3 is provided differently.

Referring to fig. 13, a holding rod 4 extends from one side of the movable block 3 away from the frame body 1, the holding rod 4 is fixedly connected with the movable block 3, when the movable block 3 is disassembled, a user can hold the holding rod 4 with fingers, and then the movable block 3 can be driven to rotate by rotating the holding rod 4, so that the movable block 3 is screwed out from the frame body 1, and convenience in disassembling the movable block 3 is improved.

Example ten:

referring to fig. 14, embodiment ten differs from embodiment one in that the arrangement of the frame body 1 is different.

Referring to fig. 14, the pick-up portion 11 is slidably connected with the cutter blade 5 toward an end far away from the support arm 2, the upper end portion of the frame body 1 is provided with a sliding opening 6, a sliding block 61 fixedly connected with the cutter blade 5 is arranged in the sliding opening 6, when a user needs to cut dental floss, the user can drive the sliding block 61 by using fingers to further drive the cutter blade 5 to slide out, the cutter body 51 is arranged at the upper end portion of the cutter blade 5, and the user can cut the dental floss by approaching the dental floss to the direction close to the cutter body 51, so that the convenience of cutting the dental floss by the user is improved.

Example eleven:

Referring to fig. 15 and 16, the eleventh embodiment differs from the first embodiment in that the arrangement of the frame body 1 is different.

Referring to fig. 15 and 16, the frame 1 is detachably connected with a dental floss barrel 7, and the dental floss barrel 7 and the pick-up portion 11 may be in threaded connection or clamping connection and may be connected with the pick-up portion 11; thereby improving the practical convenience of the frame body 1. The wire outlet hole 8 is formed in the dental floss barrel 7, a user directly wears out dental floss wires in the dental floss barrel 7 from the wire outlet hole 8, the cutter body II 71 for cutting the dental floss wires is arranged at the upper end part of the dental floss barrel 7, after the dental floss wires are taken out to a proper length, the cutter body II 71 is used for cutting the dental floss wires, then the dental floss wires can be sleeved on the frame body 1 for picking teeth, and the use convenience of the frame body 1 is high and the user can conveniently carry the dental floss wires.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. Dental floss frame, including support body (1), its characterized in that: one end of the frame body (1) is provided with a pick-up part (11), the other end of the frame body (1) is provided with two support arms (2) for winding dental floss, one ends of the two support arms (2) away from the pick-up part (11) are all extended with hooks (21) for winding dental floss wires, the upper end part of the support arm (2) is provided with wire winding grooves (22) for winding dental floss wires, the frame body (1) is detachably connected with a movable block (3) for disassembling dental floss, and the movable block (3) is located at the upper end part of the frame body (1).

2. The dental floss holder of claim 1, wherein: the upper end face of the movable block (3) is provided with a concave groove (33) for placing an index finger, one side of the movable block (3) deviating from the concave groove (33) is extended with a positioning convex (32), the lower end part of the positioning convex (32) is provided with a threaded rod (31), and the frame body (1) is provided with a threaded hole (23) matched with the threaded rod (31).

3. The dental floss holder of claim 2, wherein: the circumference of the movable block (3) is provided with frosting surfaces.

4. The dental floss holder of claim 2, wherein: the circumference equidistant of the movable block (3) is provided with a plurality of protruding teeth (34).

5. The dental floss holder of claim 4, wherein: the edges of the protruding teeth (34) are all round corners.

6. The dental floss holder of claim 5, wherein: grooves (35) are formed in two ends of the plurality of protruding teeth (34) in the width direction, and the grooves (35) are located at one end, close to the movable block (3), of the protruding teeth (34).

7. The dental floss holder of claim 1, wherein: the center department of support body (1) is equipped with boss (12), standing groove (13) that are used for placing movable block (3) are offered to boss (12), movable block (3) are kept away from the one end of picking up portion (11) and are extended to have and are used for twining tooth wire loop (36) on crotch (21), the both ends of movable block (3) width direction all set up to the one side slope that is close to tooth wire loop (36), the one end that movable block (3) is close to tooth wire loop (36) is established to pressing part (37), the width of pressing part (37) is less than the width of movable block (3) other end, standing groove (13) and movable block (3) adaptation, one side intercommunication that standing groove (13) are close to support arm (2) has dodge mouth (14), dodge mouthful (14) are offered in boss (12) one side that is close to support arm (2).

8. The dental floss holder of claim 7, wherein: the one end that standing groove (13) kept away from support arm (2) is equipped with a plurality of protruding posts (131), and a plurality of protruding posts (131) set up symmetrically each other, and the width and the thickness of a plurality of protruding posts (131) are by last diminishing gradually down, and the inside of standing groove (13) is located in a plurality of protruding posts (131) subtends, and movable block (3) are located inside standing groove (13), and protruding post (131) all with movable block (3) butt.

9. The dental floss holder of claim 7, wherein: the movable block (3) extends to a protruding block (38) at one end far away from the supporting arm (2).

10. The dental floss holder of claim 7, wherein: one end of the movable block (3) far away from the supporting arm (2) is provided with an extending groove (39).