Hairdressing scissors with replaceable scissor heads

Abstract

The utility model discloses a pair of hairdressing scissors with replaceable cutting heads, which comprises two groups of scissors half pieces, a central shaft is rotatably connected between the two groups of scissors half pieces, connecting rods are arranged at the top ends of the two groups of scissors half pieces, and the cutting heads are arranged at the top ends of the two groups of connecting rods. A quick mounting mechanism is arranged between the two sets of tool bits and the connecting rod, the quick mounting mechanism comprises an inserting sleeve, an inserting rod, a sliding rod, a clamping block, a clamping groove, an abutting block, a pulling plate, a tension spring and a quick dismounting mechanism, the inserting sleeve is installed at the top end of the connecting rod, the inserting rod is installed at the bottom ends of the tool bits, the sliding rod is provided with a plurality of sets of outer walls sliding on the inserting sleeve, and the quick dismounting mechanism is arranged on the outer wall of the inserting sleeve through cooperation of the quick dismounting sleeve in the sliding groove and the abutting face. And by combining the containing function of the containing groove and the elastic effect of the contraction spring, the tool bit can be quickly detached. When the tool bit needs to be replaced, the quick-release sleeve moves to drive the abutting block to move, so that the clamping block is separated from the clamping groove, the tool bit is conveniently detached, and the problem that a tool of traditional scissors is tedious to replace is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hairdressing technical field, more specifically, it relates to a hairdressing scissors with replaceable blade. BACKGROUND

[0002] In the hairdressing industry, stylists need to use different types of scissors to complete various hairstyle designs, such as straight cutting, layer cutting, edge trimming, and other processes. However, most existing hairdressing scissors are designed as a single unit, with the blade fixedly connected to the body of the scissors. This design limits the flexibility of the scissors and forces stylists to prepare multiple scissors of different types, increasing tool costs and affecting work efficiency.

[0003] In actual use, the blades of hairdressing scissors may wear out or become dull due to frequent use. Traditional fixed designs make it impossible to replace the blades individually, and the entire scissors must be replaced. This not only wastes resources but also increases the financial burden on hairdressing practitioners. Additionally, different hairstyle designs have different requirements for blades, and fixed scissors cannot meet the diverse needs of hairdressing, affecting the quality and effectiveness of hairdressing work. SUMMARY

[0004] (I) Technical problems solved

[0005] To address the problems in the prior art, the utility model provides a hairdressing scissors with replaceable blades to solve the technical problem of traditional fixed designs that make it impossible to replace blades individually.

[0006] (II) Technical solutions

[0007] To achieve the above object, the utility model provides following technical scheme: a hairdressing scissors of replaceable tool bit, including scissors half piece, the scissors half piece is equipped with two groups and is equipped with the central shaft between rotation connection, two groups the top of scissors half piece is equipped with connecting rod, two groups connecting rod top is equipped with tool bit, two groups tool bit and connecting rod between is equipped with quick -wearing mechanism, quick -wearing mechanism includes insert sleeve, plug rod, sliding rod, clamping block, card slot, abutment block, pull plate, tension spring and quick -release mechanism, insert sleeve installation is in connecting rod top, plug rod installation is in tool bit bottom, sliding rod is equipped with multiple groups and slides in insert sleeve outer wall, clamping block installation is in multiple group sliding rod bottom, card slot is equipped with multiple groups and is distributed in plug rod outer wall, abutment block installation is in multiple group sliding rod top, pull plate installation is in multiple group abutment block top, tension spring installation is in multiple group pull plate inside and is connected with insert sleeve outer wall, quick -release mechanism includes sliding slot, quick -release sleeve, abutment surface, containing groove and contraction spring, sliding slot is equipped with multiple groups and is distributed in insert sleeve outer wall, quick -release sleeve slides in multiple group sliding slot, abutment block sets up in quick -release sleeve top surface, containing groove is equipped with multiple groups and is distributed in quick -release sleeve top, contraction spring sets up in multiple group sliding slot and both ends are connected insert sleeve with quick -release sleeve.

[0008] The utility model further sets up, insert sleeve outside sets up limit mechanism, limit mechanism includes limit block, reset spring, limit slot, limit sleeve, limit board and push spring, limit block is equipped with multiple groups and slides in quick -release sleeve outer wall, reset spring connects in multiple group limit block top and is connected with quick -release sleeve outer wall, limit sleeve slides in insert sleeve outer wall, limit board is equipped with multiple groups and is installed in limit sleeve outer wall, push spring is equipped with multiple groups and both ends are connected limit sleeve with insert sleeve.

[0009] The utility model further sets up, insert sleeve inner top surface is equipped with locating rod, plug rod top is equipped with locating hole, locating rod and locating hole all set up multiple polygons and are adapted. Through the cooperation of the locating rod and the locating hole of the polygon, the direction accuracy during installation of the tool bit is ensured, and misalignment during installation is prevented.

[0010] The utility model further sets up, insert sleeve inner top surface is equipped with locating rod, plug rod top is equipped with locating hole, locating rod and locating hole all set up multiple polygons and are adapted. Through the cooperation of the locating rod and the locating hole of the polygon, the direction accuracy during installation of the tool bit is ensured, and misalignment during installation is prevented.

[0011] The utility model further sets up, multiple group clamping block outside all are equipped with limit rod, multiple group limit rod all with insert sleeve sliding connection. Through the sliding cooperation of the limit rod and the insert sleeve, the stability and accuracy during movement of the clamping block are ensured.

[0012] The utility model further sets up, multiple group abutment block bottom all are equipped with arc surface. Through the design of the arc surface, the contact between the abutment block and other components is smoother, wear is reduced, and movement stability is improved.

[0013] The utility model further sets up, a plurality of groups limit board top all is provided with round angle, a plurality of groups limit block both ends all are provided with cambered surface. Through the design of round angle and cambered surface, make the contact of limit board and limit block more smooth, improve the operation reliability of limit mechanism.

[0014] The utility model further sets up, the outer wall of bushing is equipped with guide strip, a plurality of groups are provided with and all are with the sliding connection of limit sleeve. Through the sliding cooperation of guide strip and limit sleeve, ensure the direction accuracy when limit sleeve moves, prevent deviation.

[0015] (Three) beneficial effect

[0016] Compared with the prior art, the utility model provides a hairdressing scissors with replaceable blade, has the following beneficial effects:

[0017] 1, through setting up quick -mounting mechanism in the connecting rod top, adopts the plug -in cooperation of bushing and plug rod, combines the directional design of polygon positioning rod and positioning hole, cooperates the stable support of compression spring and pressure ring, and the locking structure of clamping block and clamping groove, realizes the accurate positioning and stable connection of blade, solves the problem that traditional hairdressing scissors blade cannot be replaced. Meanwhile, through the guiding effect of slide rod and limit rod, cooperate with the arc surface design of abutment block, ensure the smooth and reliable of installation process.

[0018] 2, through setting up quick -release mechanism, utilizes the cooperation of quick -release sleeve in sliding slot and abutment surface, combines the storage function of containing groove and the elastic action of contraction spring, realizes the quick disassembly of blade. When needing to replace the blade, the movement of quick -release sleeve drives abutment block displacement, makes clamping block separate from clamping groove, thereby completes the convenient disassembly of blade, effectively solves the problem that traditional scissors replace tool is complicated.

[0019] 3, through setting up limit mechanism on the outside of bushing, adopts the locking structure of limit block and limit slot, cooperates the return function of reset spring, combines the linkage design of limit sleeve, limit plate and push spring, and through the guiding effect of guide strip, realizes the reliable restriction of quick -release sleeve position. The smoothness of mechanism movement is ensured by the limit plate of round angle design and the limit block of cambered surface design, not only improves the safety of whole scissors, but also enhances the operation convenience when replacing blade. ACCURACY OF DRAWINGS

[0020] Figure 1 It is the whole structure schematic diagram of a kind of hairdressing scissors with replaceable blade in the utility model;

[0021] Figure 2 It is the split structure schematic diagram of blade in the utility model;

[0022] Figure 3 It is the external structure schematic diagram of quick -mounting mechanism in the utility model;

[0023] Figure 4 It is a sectional view structure schematic diagram of the quick mounting mechanism in the utility model.

[0024] Figure 5 It is a sectional view structure schematic diagram of the quick mounting mechanism in the utility model.

[0025] In the figure: 1, scissor half piece; 2, central shaft; 3, connecting rod; 4, tool bit; 5, insert sleeve; 6, insert rod; 7, sliding rod; 8, clamping block; 9, clamping groove; 10, abutting block; 11, pull plate; 12, pull spring; 13, sliding groove; 14, quick release sleeve; 15, abutting surface; 16, containing groove; 17, contraction spring; 18, limiting block; 19, reset spring; 20, limiting groove; 21, limiting sleeve; 22, limiting plate; 23, push spring; 24, positioning rod; 25, positioning hole; 26, compression spring; 27, compression ring; 28, limiting rod; 29, guide bar. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0028] In the present application, unless otherwise specified, the directions used such as "up, down" are generally with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for the convenience of understanding and description, "left, right" are generally with respect to the left and right shown in the drawings; "inner, outer" refer to the inner and outer with respect to the contour of each component itself, but the above directional words are not used to limit the present application.

[0029] Please refer to Figures 1-5The utility model provides a hairdressing scissors with replaceable blade head 4, which comprises a scissors half 1, the scissors half 1 is provided with two groups and is rotationally connected with a central shaft 2, the top of the two groups of scissors half 1 is provided with a connecting rod 3, the top of the two groups of connecting rod 3 is provided with a blade head 4, a quick mounting mechanism is arranged between the two groups of blade head 4 and the connecting rod 3, the quick mounting mechanism comprises a sleeve 5, a plug rod 6, a sliding rod 7, a clamping block 8, a clamping groove 9, an abutment block 10, a pull plate 11, a tension spring 12 and a quick release mechanism, the sleeve 5 is installed at the top of the connecting rod 3, the plug rod 6 is installed at the bottom of the blade head 4, the sliding rod 7 is provided with a plurality of groups and is slid on the outer wall of the sleeve 5, the clamping block 8 is installed at the bottom of the plurality of groups of sliding rod 7, the clamping groove 9 is provided with a plurality of groups and is distributed on the outer wall of the plug rod 6, the abutment block 10 is installed at the top of the plurality of groups of sliding rod 7, the pull plate 11 is installed at the top of the plurality of groups of abutment block 10, the tension spring 12 is installed on the inner side of the plurality of groups of pull plate 11 and is connected with the outer wall of the sleeve 5, the quick release mechanism comprises a sliding groove 13, a quick release sleeve 14, an abutment surface 15, a containing groove 16 and a contraction spring 17, the sliding groove 13 is provided with a plurality of groups and is distributed on the outer wall of the sleeve 5, the quick release sleeve 14 is slid in the plurality of groups of sliding groove 13, the abutment block 10 is arranged on the top surface of the quick release sleeve 14, the containing groove 16 is provided with a plurality of groups and is distributed on the top of the quick release sleeve 14, and the contraction spring 17 is arranged in the plurality of groups of sliding groove 13 and is connected with the sleeve 5 and the quick release sleeve 14 at both ends.

[0030] A positioning rod 24 is arranged on the inner top surface of the sleeve 5, a positioning hole 25 is formed in the top end of the plug rod 6, and the positioning rod 24 and the positioning hole 25 are both polygonal and matched with each other. The principle is that the shape matching of the polygonal positioning rod 24 and the positioning hole 25 realizes automatic orientation when the plug rod 6 is inserted, thereby preventing the blade head 4 from being installed in a wrong position.

[0031] A compression spring 26 is arranged on the inner top surface of the sleeve 5, and the compression spring 26 is provided with a plurality of groups and is connected with a compression ring 27 at the bottom. The principle is that the plurality of groups of compression spring 26 provide continuous elastic supporting force for the plug rod 6 through the compression ring 27, thereby ensuring that the plug rod 6 remains stable during use.

[0032] Limit rods 28 are arranged on the outer side of the plurality of groups of clamping blocks 8 and are slidably connected with the sleeve 5. The principle is that the sliding guiding effect of the limit rods 28 on the sleeve 5 ensures that the clamping blocks 8 maintain correct movement tracks during movement.

[0033] Arc surfaces are arranged at the bottom of the plurality of groups of abutment blocks 10. The principle is that the arc surface design makes the abutment blocks 10 contact other components more smoothly during movement, thereby reducing the resistance when the mechanism moves.

[0034] In this embodiment, when the tool bit 4 needs to be installed, the insertion rod 6 at the bottom end of the tool bit 4 is inserted into the insertion sleeve 5, the positioning rod 24 with a polygonal shape is matched with the positioning hole 25 to ensure the correct installation direction, the plurality of sets of contraction springs 17 pull the quick release sleeve 14 to make the abutting surface 15 abut against the plurality of sets of abutting blocks 10, the pulling force of the plurality of sets of contraction springs 17 is greater than that of the plurality of sets of tension springs 12, the abutting surface 15 pushes the abutting blocks 10 to move outward and pull the clamping blocks 8 to move outward through the sliding rod 7, the top end of the insertion rod 6 abuts against the pressing ring 27 and extrudes the plurality of sets of compression springs 26, then the quick release sleeve 14 is pushed to release the abutment of the plurality of sets of abutting blocks 10, the pulling plate 11 is pulled to abut against the abutting blocks 10 through the plurality of sets of tension springs 12, and the plurality of sets of clamping blocks 8 are clamped in the clamping grooves 9, thereby completing the clamping of the insertion rod 6. When the tool bit 4 needs to be disassembled, the quick release sleeve 14 is pulled by the plurality of sets of contraction springs 17, the abutting blocks 10 are pushed by the abutting surface 15, the receiving grooves 16 receive the sliding rod 7, the clamping blocks 8 are separated from the clamping grooves 9, and the tool bit 4 is quickly disassembled.

[0035] Please refer to Figures 3-5 As an embodiment of the limiting mechanism: the outer side of the insertion sleeve 5 is provided with a limiting mechanism, the limiting mechanism includes a limiting block 18, a reset spring 19, a limiting groove 20, a limiting sleeve 21, a limiting plate 22, and a push spring 23, the limiting block 18 is provided with a plurality of sets of slidingly installed on the outer wall of the quick release sleeve 14, the reset spring 19 is connected to the top end of the plurality of sets of limiting blocks 18 and connected to the outer wall of the quick release sleeve 14, the limiting sleeve 21 is slidingly installed on the outer wall of the insertion sleeve 5, the limiting plate 22 is provided with a plurality of sets of installed on the outer wall of the limiting sleeve 21, and the push spring 23 is provided with a plurality of sets of connected to the limiting sleeve 21 and the insertion sleeve 5 at both ends.

[0036] The top end of each of the plurality of sets of limiting plates 22 is provided with a rounded corner, and both ends of each of the plurality of sets of limiting blocks 18 are provided with an arc surface. The principle is to achieve smooth transition and contact between the components of the limiting mechanism through the design of the rounded corner of the limiting plate 22 and the arc surface of the limiting block 18.

[0037] The outer wall of the insertion sleeve 5 is provided with a guide strip 29, and the guide strip 29 is provided with a plurality of sets of slidingly connected to the limiting sleeve 21. The principle is that the plurality of sets of guide strips 29 provide an accurate movement track for the limiting sleeve 21 to ensure that the limiting sleeve 21 does not deviate when moving.

[0038] More specifically, the limiting sleeve 21 and the limiting plate 22 are pushed by the plurality of sets of push springs 23, the inner wall of the plurality of sets of limiting plates 22 abuts against the top end of the plurality of sets of limiting blocks 18, thereby pushing the plurality of sets of limiting blocks 18 to be clamped in the limiting groove 20 to limit the position of the quick release sleeve 14, at this time the plurality of sets of reset springs 19 are extruded, when the limiting of the quick release sleeve 14 needs to be released, the limiting sleeve 21 is pulled to drive the plurality of sets of limiting plates 22 to be separated from the limiting blocks 18 and extrude the plurality of sets of push springs 23, the limiting blocks 18 are pulled to move outward by the plurality of sets of reset springs 19, so that the bottom end of the plurality of sets of limiting blocks 18 is separated from the limiting groove 20, thereby completing the unlocking of the quick release sleeve 14.

[0039] In summary, the overall device in use or operation: when the need to install the tool bit 4, the tool bit 4 bottom end of the plug rod 6 inserted into the sleeve 5, the positioning rod 24 and the positioning hole 25 with each other, to ensure the correct installation direction, a plurality of retractable spring 17 pull quick release sleeve 14 so that the abutment surface 15 and a plurality of abutment block 10 abutment, a plurality of retractable spring 17 pull force greater than a plurality of tension springs 12, through the foot abutment surface 15 push the abutment block 10 to move outward and through the slide rod 7 pull the block 8 to move outward, the top end of the plug rod 6 abutment ring 27 and a plurality of compression springs 26 extrusion, then push the quick release sleeve 14 to remove the abutment of a plurality of abutment block 10, through a plurality of tension springs 12 pull the pull plate 11 and the abutment block 10, while pushing a plurality of block 8 clamping in the card slot 9, complete the clamping of the plug rod 6, when the need to disassemble the tool bit 4, a plurality of retractable spring 17 pull quick release sleeve 14, the abutment surface 15 push the abutment block 10, the containing groove 16 receiving slide rod 7, so that the block 8 out of the card slot 9, thereby realizing the quick disassembly of the tool bit 4.

[0040] By a plurality of push spring 23 push the limit sleeve 21 and the limiting plate 22, through a plurality of limiting plate 22 inner wall abutment in a plurality of limiting block 18 top, thereby pushing a plurality of limiting block 18 clamping in the limiting slot 20, the position of the quick release sleeve 14 is limited, at this time a plurality of reset spring 19 is extruded, when the need to remove the limit of the quick release sleeve 14, pull the limiting sleeve 21 drive a plurality of limiting plate 22 out of the limiting block 18 and extrude a plurality of push spring 23, through a plurality of reset spring 19 pull the limiting block 18 to move outward, so that the bottom end of a plurality of limiting block 18 out of the limiting slot 20, thus completing the unlocking of the quick release sleeve 14.

[0041] All the above schemes involve the connection between the two components can be selected according to the actual situation of welding, bolt and nut connection, bolt or screw connection or other known connection method, not here, all the above are described in detail, preferably considered is welding, although the embodiments of the utility model have been shown and described, those skilled in the art can understand that these embodiments can be changed, modified, replaced and modified without departing from the principles and spirit of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hairdressing scissors with replaceable blade (4) comprising a scissors half (1) characterised in that: The scissors half piece (1) is provided with two groups and is rotatably connected with a center shaft (2). The top end of each of the two groups of scissors half pieces (1) is provided with a connecting rod (3). The top end of each of the two groups of connecting rods (3) is provided with a tool bit (4). A quick mounting mechanism is arranged between the two groups of tool bits (4) and the connecting rods (3). The quick mounting mechanism comprises a plug sleeve (5), a plug rod (6), a sliding rod (7), a clamping block (8), a clamping groove (9), an abutting block (10), a pull plate (11), a pull spring (12), and a quick release mechanism. The plug sleeve (5) is mounted at the top end of the connecting rod (3). The plug rod (6) is mounted at the bottom end of the tool bit (4). The sliding rod (7) is provided with a plurality of groups of sliding rods (7) outside the plug sleeve (5). The clamping block (8) is mounted at the bottom end of the plurality of groups of sliding rods (7). The clamping groove (9) is provided with a plurality of groups of clamping grooves (9) distributed outside the plug rod (6). The abutting block (10) is mounted at the top end of the plurality of groups of sliding rods (7). The pull plate (11) is mounted at the top end of the plurality of groups of abutting blocks (10). The pull spring (12) is mounted on the inner side of the plurality of groups of pull plates (11) and is connected with the outer wall of the plug sleeve (5). The quick release mechanism comprises a sliding groove (13), a quick release sleeve (14), an abutting surface (15), a receiving groove (16), and a contraction spring (17). The sliding groove (13) is provided with a plurality of groups of sliding grooves (13) distributed outside the plug sleeve (5). The quick release sleeve (14) slides in the plurality of groups of sliding grooves (13). The abutting block (10) is arranged on the top surface of the quick release sleeve (14). The receiving groove (16) is provided with a plurality of groups of receiving grooves (16) distributed at the top end of the quick release sleeve (14). The contraction spring (17) is arranged in the plurality of groups of sliding grooves (13) and is connected with the plug sleeve (5) and the quick release sleeve (14) at both ends.

2. A hair cutting scissors with replaceable blade head according to claim 1, characterized in that: A limiting mechanism is arranged outside the plug sleeve (5). The limiting mechanism comprises a limiting block (18), a reset spring (19), a limiting groove (20), a limiting sleeve (21), a limiting plate (22), and a push spring (23). The limiting block (18) is provided with a plurality of groups of limiting blocks (18) slidingly mounted outside the quick release sleeve (14). The reset spring (19) is connected at the top end of the plurality of groups of limiting blocks (18) and is connected with the outer wall of the quick release sleeve (14). The limiting sleeve (21) slides outside the plug sleeve (5). The limiting plate (22) is provided with a plurality of groups of limiting plates (22) mounted outside the limiting sleeve (21). The push spring (23) is provided with a plurality of groups of push springs (23) connected with the limiting sleeve (21) and the plug sleeve (5) at both ends.

3. A hair cutting scissors with replaceable blade head according to claim 2, characterized in that: A positioning rod (24) is arranged on the inner top surface of the plug sleeve (5). A positioning hole (25) is arranged at the top end of the plug rod (6). The positioning rod (24) and the positioning hole (25) are both polygonal and matched with each other.

4. A hair cutting scissors with replaceable blade head according to claim 3, characterized in that: A compression spring (26) is mounted on the inner top surface of the plug sleeve (5). The compression spring (26) is provided with a plurality of groups of compression springs (26) connected with a compression ring (27) at the bottom end.

5. A hair cutting scissors with replaceable blade head according to claim 4, characterized in that the plurality of sets of A limiting rod (28) is mounted outside each of the clamping blocks (8). The plurality of groups of limiting rods (28) are slidingly connected with the plug sleeve (5).

6. A hair cutting scissors with replaceable blade head according to claim 5, characterized in that: The bottom end of each of the plurality of groups of abutting blocks (10) is provided with an arc surface.

7. A hair cutting shear according to claim 6 wherein: The top end of each of the plurality of groups of limiting plates (22) is provided with a round corner. The two ends of each of the plurality of groups of limiting blocks (18) are provided with arc surfaces.

8. A hair cutting shear according to claim 7 wherein: A guide strip (29) is arranged outside the plug sleeve (5). The guide strip (29) is provided with a plurality of groups of guide strips (29) slidingly connected with the limiting sleeve (21).

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