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CN-224223956-U - Middle knife set for preventing latch

CN224223956UCN 224223956 UCN224223956 UCN 224223956UCN-224223956-U

Abstract

The utility model relates to an intermediate cutter group for preventing teeth from being stuck, which comprises a static cutter and a movable cutter, wherein the movable cutter is always stuck with the static cutter under the action of external force and can swing back and forth along the static cutter. The movable cutter tooth and the static cutter tooth are inclined, so that when the movable cutter is in any reciprocating swing position, the static cutter tooth can form axial pressing limit perpendicular to the swing direction of the movable cutter at least at one end of the movable cutter in any state, and the movable cutter tooth can be effectively prevented from being clamped into a static tooth socket in the static cutter when the static cutter is stressed to bend and deform due to the limit of surface contact of the static cutter tooth to one end pressed by the movable cutter tooth, thereby avoiding tooth clamping phenomenon, and improving the running stability of the movable cutter and the trimming performance of hairs such as beard.

Inventors

  • Request for anonymity

Assignees

  • 浙江海顺电工有限公司

Dates

Publication Date
20260512
Application Date
20250511

Claims (9)

  1. 1. The middle cutter group for preventing the clamping teeth comprises a static cutter (4), a plurality of static cutter teeth (41) which are arranged at intervals are arranged on the static cutter (4), static tooth grooves (42) are formed between every two adjacent static cutter teeth (41), and a movable cutter (5) is arranged on the movable cutter (5), a plurality of movable cutter teeth (51) which are arranged at intervals are formed between every two adjacent movable cutter teeth (51), the movable cutter (5) is always adhered to the static cutter (4) under the action of external force and can swing back and forth along the static cutter (4), and the middle cutter group is characterized in that each movable cutter tooth (51) in the movable cutter (5) is inclined relative to each static cutter tooth (41) in the static cutter (4), and when the movable cutter (5) is in any reciprocating swing position, at least one end of each movable cutter tooth (51) is in partial surface contact with the corresponding static cutter tooth (41) in the static cutter (4), so that at least one end of each movable cutter tooth (51) is in any state to form axial limit perpendicular to the swing direction.
  2. 2. The middle cutter set for preventing the latch according to claim 1, wherein each static cutter tooth (41) in the static cutter (4) is vertical or inclined relative to two side edges of the static cutter (4), each movable cutter tooth (51) in the movable cutter (5) is inclined relative to the static cutter tooth (41), the inclination angle a is 15-25 degrees, when the movable cutter (5) is at any reciprocating swing position, one end of any movable cutter tooth (51) is in surface contact with one static cutter tooth (41) in the static cutter (4), the other end of the same movable cutter tooth (51) is in surface contact with the opposite end of the other static cutter tooth (41) adjacent to the static cutter (4), and therefore two adjacent static cutter teeth (41) in the static cutter (4) are respectively limited to two ends of the same movable cutter tooth (51) in the movable cutter (5) in an axial direction perpendicular to the swing direction.
  3. 3. The intermediate tooth set for preventing tooth sticking according to claim 1, wherein each stationary tooth (41) comprises a first tooth segment (411) and a second tooth segment (412), and a transition tooth segment (413) for connecting the first tooth segment (411) and the second tooth segment (412), wherein the first tooth segment (411) and the second tooth segment (412) are offset in parallel with each other, each movable tooth (51) in the movable blade (5) is inclined with respect to the first tooth segment (411) and the second tooth segment (412), the transition tooth segment (413) is S-shaped, and the width L1 of both ends is larger than the width L2 of the middle, so that the width L3 of the stationary tooth slot (42) between adjacent stationary teeth (41) is larger than the width L4 of both ends.
  4. 4. A tooth-latch-preventing intermediate knife tackle according to claim 3, characterized in that the ends of the first tooth segment (411) and the second tooth segment (412) that are in contact with the outside are tapered such that a flare (43) is formed at the opening of the static tooth slot (42) between adjacent static knife teeth (41).
  5. 5. The middle knife set for preventing latch teeth according to claim 1, wherein the cutting edges at both sides of each movable knife tooth (51) in the movable knife (5) are in an arc shape protruding outwards, so that the width L5 at both ends of the movable knife tooth (51) is smaller than the middle width L6.
  6. 6. The middle knife set for preventing latch teeth according to claim 1, wherein the cutting edges on both sides of each movable knife tooth (51) in the movable knife (5) are in an inward concave arc shape, so that the width L7 of both ends of the movable knife tooth (51) is larger than the middle width L8.
  7. 7. The middle knife set for preventing latch according to claim 1, wherein each movable knife tooth (51) in the movable knife (5) comprises a connecting end connecting the side walls of the two sides of the movable knife (5) and an arc section arranged between the two connecting ends, wherein the arc section is concave inwards or protrudes outwards, so that the widths L9, L10 of the arc section are smaller or larger than the widths L11, L12 of the connecting ends.
  8. 8. The middle cutter set for preventing teeth according to claim 1, wherein a plurality of stationary cutter teeth (41) arranged at intervals in the stationary cutter (4) and stationary tooth grooves (42) between adjacent stationary cutter teeth (41) form a tooth groove set, the tooth groove set length L13 is smaller than the stationary cutter length L14, reinforcing sheets (44) are respectively formed at two ends of the stationary cutter (4), connecting ribs (45) are arranged in at least two stationary tooth grooves (42) close to the reinforcing sheets (44) in the stationary cutter (4) to divide the stationary tooth grooves (42) into two, and the connecting ribs (45) sequentially connect the stationary cutter teeth (41) at two sides of the stationary tooth grooves (42) with the reinforcing sheets (44) into a whole.
  9. 9. The intermediate knife tackle for preventing latch according to claim 1, characterized in that the surface of the stationary knife (4) is planar or non-planar as seen in the direction of orthographic projection of either end of the stationary knife (4).

Description

Middle knife set for preventing latch Technical Field The utility model relates to a cutter head assembly for trimming hairs such as beard, in particular to an intermediate cutter set for preventing teeth from being stuck, which is mainly applied to the field of personal care tools such as shavers, shavers and the like. Background The middle cutter set is an important cutting part in the multi-cutter head cutting tool, and is mainly used for cutting long hair and other hairs and cutting short long hair and other hairs. The existing middle cutter set mainly comprises a static cutter 1 and a movable cutter 2, wherein the static cutter 1 is arranged on a static cutter holder, the movable cutter 2 is arranged on a movable cutter holder, a plurality of static cutter teeth 11 and movable cutter teeth 21 which are arranged at intervals are respectively arranged on the static cutter 1 and the movable cutter 2, static tooth grooves 3 are respectively formed between the adjacent static cutter teeth 11 and the movable cutter teeth 21, and the outer surface of the movable cutter 2 is always adhered to the inner surface of the static cutter 1 under the action of an elastic piece, so that enough shearing force is kept between the static cutter teeth 11 and the movable cutter teeth 21 to cut hairs such as beards. As shown in fig. 1 and 2, the stationary teeth 11 of the conventional stationary blade 1 and the movable teeth 21 of the movable blade 2 are relatively parallel, and when hair is cut, the cutting edges of the movable teeth 21 can all contact the cutting edges of the stationary teeth 11 at a time, so that the maximum cutting surface is maintained, and the cutting amount of the single beard and other hairs of the movable teeth 21 is increased. However, with this structure, there is also an obvious defect that when the static knife 1 is attached to the skin, such as when shaving hairs, etc., when the user manually presses the shaving tool, the static knife 1 is pressed by the pressing force applied by the hand to press the skin, and bending deformation occurs, at this time, the opening at the lower end of the static tooth slot 3 in the static knife 1 is opened towards two sides, and when the moving knife tooth 21 in the moving knife 2 happens to be located at the static tooth slot 3 in the static knife 1, the static knife 1 is also very easy to be clamped into the static tooth slot 3 in the static knife 1 in the moment of stress bending deformation, so that the clamping tooth phenomenon occurs. Secondly, the movable cutter 2 is supported by elastic force of the elastic member and is always attached to the inside of the static cutter 1, in the process that the movable cutter 2 swings back and forth along the static cutter 1, the two ends of the movable cutter 2 are blocked by hairs such as beard (namely, the hairs are blocked into the space between the static cutter teeth 11 and the movable cutter teeth 21 and are not cut off), so that the seesaw phenomenon is easy to occur, namely, one end of the movable cutter 2 is inclined downwards, the other end of the movable cutter is tilted upwards, at the moment, the movable cutter teeth 21 at one tilted end are extremely easy to be blocked into the static tooth grooves 3 in the static cutter 1, so that the clamping phenomenon occurs, and the middle cutter group or the hair trimming tool is damaged. Disclosure of utility model In order to solve the technical problems, the utility model provides the middle cutter group for preventing the clamping teeth, and the direction of the movable cutter teeth is adjusted to ensure that the movable cutter teeth are propped against the static cutter teeth at any position, so that the movable cutter teeth can be effectively prevented from being blocked into the static tooth sockets of the static cutter blade, the hair trimming performance of beards and the like is ensured, and the use safety of a trimming tool is improved. The technical scheme includes that the middle cutter set for preventing the teeth from being clamped comprises a static cutter, a plurality of static cutter teeth which are arranged at intervals are arranged on the static cutter, static tooth grooves are formed between adjacent static cutter teeth, a plurality of movable cutter teeth which are arranged at intervals are arranged on the movable cutter, movable tooth grooves are formed between adjacent movable cutter teeth, the movable cutter is always kept in contact with the static cutter under the action of external force and can swing back and forth along the static cutter, each movable cutter tooth in the movable cutter is inclined relative to the static cutter tooth in the static cutter, and when the movable cutter is in any reciprocating swing position, at least one end of each movable cutter tooth is in partial surface contact with the corresponding static cutter tooth in the static cutter. Preferably, each static cutter tooth in the static cutter is vertical or inc