Wrench built-in adjusting mechanism of electric hair cutter

Abstract

The utility model discloses a wrench built-in adjusting mechanism of an electric hair cutter, which comprises a shell, a movable blade is fixedly arranged on the shell, a knife rest is slidably arranged on the shell, a fixed blade is arranged on the knife rest, an adjusting wrench for driving the knife rest to move is rotatably arranged on the shell, a fixed tooth block is fixedly arranged on the shell, and the fixed tooth block is fixedly arranged on the shell. A limiting protruding part is formed on the fixed tooth block, a plurality of limiting grooves allowing the limiting protruding part to be placed therein are formed in the adjusting wrench, and the limiting protruding part is placed in the limiting grooves so that the adjusting wrench can be kept at the current angle.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric clipper technical field, concretely relates to a spanner built -in adjusting mechanism of electric clipper. BACKGROUND

[0002] The existing electric clipper includes a body and a cutter head assembly, the cutter head assembly is installed at the front end of the bottom plate, the cutter head assembly includes a bottom plate, a fixed knife holder, a movable knife holder, a fixed blade, a movable blade and a torsional spring, the bottom plate is installed at the front end of the body, the fixed blade is fixedly connected to the fixed knife holder, the movable blade is limitingly inserted into the movable knife holder or fixedly connected to the movable knife holder, the torsional spring is fixedly installed on the bottom plate or the fixed knife holder, and the two sides of the torsional spring act on the movable knife holder to make the movable blade adhere to the fixed blade.

[0003] In order to change the front and back distance of the fixed blade and the movable blade during the use of the electric clipper, so as to achieve the effect of controlling the hair cutting length, a spanner adjusting mechanism is generally arranged on the electric clipper, for example, a gear adjusting mechanism disclosed in Chinese patent (authorized publication number CN213106940U) includes a guide rail arranged at the top end of the body, a fixed knife holder slidingly installed on the guide rail, a fixed blade connected to the top of the fixed knife holder, and an adjusting spanner arranged on one side of the body, the adjusting spanner can rotate relative to the fixed knife holder and push the fixed knife holder to slide along the guide rail, the gear rod is rotated by rotating the adjusting spanner, and since the movement track of the gear rod is non-circular, the push rod connected with the adjusting spanner will push the fixed knife holder to move forward and backward when the adjusting spanner rotates, so that the fixed blade fixedly connected with the fixed knife holder moves forward and backward.

[0004] However, the above-mentioned external gear slot structure has the problems of low positioning accuracy, large space occupation and high manufacturing and processing cost. INVENTION CONTENTS

[0005] To solve the technical problems in the background art, the utility model provides a spanner built-in adjusting mechanism of electric clipper.

[0006] The technical scheme adopted by the utility model to solve the technical problems is as follows:

[0007] A spanner built-in adjusting mechanism of electric clipper, including the casing, fixedly arranged with the movable blade on the casing, and slidingly arranged with the knife holder on the casing, the knife holder is provided with the fixed blade, the casing is provided with the adjusting spanner for driving the knife holder to move, the casing is fixedly provided with the fixed tooth block, the fixed tooth block is formed with the limiting convex part, the adjusting spanner is formed with the limiting slot for the limiting convex part, and the limiting convex part is arranged in the limiting slot to keep the adjusting spanner at the current angle.

[0008] Preferably, the adjusting wrench is provided with a rotating cavity, the toothed block is arranged in the rotating cavity, and the limiting grooves are arranged on the cavity wall of the rotating cavity and are equidistantly arranged along the cavity wall. Through the above improvement, the adjusting wrench can be rotated along the toothed block by cooperating the rotating cavity with the toothed block, and the adjusting wrench has a gear position feeling in the adjusting process by cooperating the limiting protrusions with the limiting grooves, and the adjusting precision is higher.

[0009] Preferably, the toothed block is provided with arc-shaped limiting protrusions and guide protrusions, and the limiting protrusions are arranged on the outer contour of the limiting protrusions. Through the above improvement, the arc-shaped guide protrusions can guide the adjusting wrench during the rotation of the adjusting wrench, and the stability during the rotation is improved, and the limiting protrusions are arranged on the outer contour of the limiting protrusions, and the limiting protrusions and the limiting grooves are cooperated to realize the angle adjustment of the adjusting wrench.

[0010] Preferably, the number of the limiting protrusions is at least two, and the limiting protrusions are oppositely arranged. Through the above improvement, the limiting protrusions on the two limiting protrusions are simultaneously connected and matched with the limiting grooves, so that the reliability of the angle retention of the adjusting wrench is greatly ensured.

[0011] Preferably, the arc-shaped extending size of the limiting protrusions is greater than that of the guide protrusions. Through the above improvement, the guiding effect of the limiting protrusions on the adjusting wrench is improved to ensure the stability of the adjusting wrench during the rotation.

[0012] Preferably, the shell is provided with a positioning column, the toothed block is sleeved on the positioning column, and the positioning column is arranged in a regular polygon. Through the above improvement, the positioning column is arranged on the shell, and the toothed block is sleeved on the positioning column. Since the positioning column is arranged in a polygon, the toothed block is fixed on the positioning column, so that the cooperation between the limiting protrusions and the limiting grooves is realized.

[0013] Preferably, the shell is provided with a bottom plate on both sides, and the bottom plate is provided with a sliding groove for sliding of the tool holder. Through the above improvement, the tool holder is guided and limited by the sliding groove to ensure the stability of the tool holder during the sliding.

[0014] Preferably, the adjusting wrench is provided with an adjusting protrusion, and the tool holder is provided with an adjusting groove for arranging the adjusting protrusion. Through the above improvement, the adjusting protrusion can pull the tool holder to move through the adjusting groove when the adjusting wrench rotates.

[0015] Preferably, the rotating cavity is provided with a limiting gasket, and the limiting gasket abuts against the toothed block to limit the toothed block from being separated from the rotating cavity. Through the above improvement, the toothed block is prevented from being separated from the rotating cavity, and the reliability of the installation of the toothed block is ensured.

[0016] Preferably, the adjusting wrench is provided with a stroke guide rod, and the shell is formed with a stroke groove, the stroke guide rod is arranged in the stroke groove, and the stroke guide rod abuts against the groove wall of the stroke groove to limit the rotation of the adjusting wrench.

[0017] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0018] Through fixing the tooth block on the shell, forming the limiting convex part on the tooth block, forming the limiting slot for the limiting convex part on the adjusting wrench, and arranging the limiting convex part in the limiting slot, the limiting convex part and the limiting slot are matched to keep the adjusting wrench at the current angle, adjust the distance between the moving blade and the fixed blade, and make the adjusting wrench have the gear feeling and higher precision during the adjusting process. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the overall structure of the utility model;

[0020] Figure 2 It is an exploded view of the tooth block and the adjusting wrench of the utility model;

[0021] Figure 3 It is a structural schematic view of the limiting gasket and the tooth block of the utility model;

[0022] Figure 4 It is a structural schematic view of the positioning column and the adjusting wrench of the utility model;

[0023] Figure 5 It is a structural schematic view of the tooth block and the adjusting wrench of the utility model;

[0024] Figure 6 It is a structural schematic view of the adjusting wrench of the utility model;

[0025] Figure 7 It is a structural schematic view of the tooth block of the utility model;

[0026] Figure 8 It is a structural schematic view of the stroke guide rod and the stroke groove of the utility model;

[0027] In the figure: 1, the shell; 2, moving blade; 3, tool rest; 4, fixed blade; 5, adjusting wrench; 6, fixed tooth block; 7, limiting convex part; 8, limiting groove; 1.1, rotating cavity; 1.2, limiting convex block; 1.3, guide convex block; 1.4, positioning column; 1.5, bottom plate; 1.6, sliding groove; 2.1, adjusting convex part; 2.2, adjusting groove; 2.3, limiting spacer; 2.4, stroke guide rod; 2.5, stroke groove; DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] It should be understood that although the terms upper, middle, lower, top end, one end and the like appear in the present document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for the purpose of understanding, and are not used to define any directional or sequential limitation.

[0030] As shown in Figures 1-8 A wrench built-in adjusting mechanism of an electric clipper includes a shell 1, a moving blade 2 is fixedly arranged on the shell 1, a tool rest 3 is slidably arranged on the shell 1, a fixed blade 4 is arranged on the tool rest 3, an adjusting wrench 5 for driving the tool rest 3 to move is rotatably arranged on the shell 1, a fixed tooth block 6 is fixedly arranged on the shell 1, a limiting convex part 7 is formed on the fixed tooth block 6, a plurality of limiting grooves 8 for the limiting convex part 7 to be placed into are formed on the adjusting wrench 5, and the limiting convex part 7 is placed into the limiting groove 8, so that the adjusting wrench 5 is kept at the current angle.

[0031] By fixing the fixed tooth block 6 on the shell 1, forming the limiting convex part 7 on the fixed tooth block 6, forming the plurality of limiting grooves 8 for the limiting convex part 7 to be placed into on the adjusting wrench 5, and placing the limiting convex part 7 into the limiting groove 8, the limiting convex part 7 and the limiting groove 8 are matched, the adjusting wrench 5 is kept at the current angle, the distance between the moving blade 2 and the fixed blade 4 is adjusted, the limiting convex part 7 gives way by relying on the elasticity of the plastic itself during the adjusting process, the problem of relying on the elasticity of the spring of other models is reduced, the cost is reduced, the adjusting wrench 5 has the gear feeling during the adjusting process, and higher precision is achieved.

[0032] As shown in Figures 1-8 Further explanation about the cooperation between the fixed tooth block 6 and the adjusting wrench 5 in the embodiment is shown in the figure. The rotating cavity 1.1 is formed in the adjusting wrench 5, the fixed tooth block 6 is placed into the rotating cavity 1.1, the limiting groove 8 is formed on the cavity wall of the rotating cavity 1.1, and is arranged at equal intervals along the cavity wall.

[0033] In the distance adjustment process of the moving blade 2 and the fixed blade 4, the rotating cavity 1.1 is matched with the fixed tooth block 6, so that the adjusting wrench 5 can rotate along the fixed tooth block 6, and the limiting convex part 7 is matched with the limiting groove 8 to fix the adjusting wrench 5 at the current angle, and the accuracy is better than that of the conventional adjusting structure, and the gear position feeling is good.

[0034] Specifically, the limiting convex block 1.2 and the guide convex block 1.3 are arranged in an arc shape on the fixed tooth block 6, and the limiting convex part 7 is formed on the outer contour of the limiting convex block 1.2. During the rotation of the adjusting wrench 5, the arc-shaped guide convex block 1.3 can guide the adjusting wrench 5, improving the stability during rotation, and the limiting convex part 7 is formed on the outer contour of the limiting convex block 1.2. The limiting convex part 7 is matched with the limiting groove 8 to realize the angle adjustment of the adjusting wrench 5.

[0035] Further, the number of limiting convex blocks 1.2 is at least two, and the limiting convex blocks 1.2 are arranged oppositely. During the angle adjustment, the limiting convex parts 7 on the two limiting convex blocks 1.2 are simultaneously matched with the limiting groove 8, thereby greatly ensuring the reliability of the angle retention of the adjusting wrench 5.

[0036] In addition, the shell 1 is inserted with a positioning column 1.4, the fixed tooth block 6 is sleeved on the positioning column 1.4, and the positioning column 1.4 is arranged in a regular polygon. The positioning column 1.4 is inserted into the shell 1, and the fixed tooth block 6 is sleeved on the positioning column 1.4. Since the positioning column 1.4 is arranged in a polygon, the fixed tooth block 6 is fixed on the positioning column 1.4, thereby realizing the cooperation of the positioning convex part and the positioning groove.

[0037] As a preferred, a limiting gasket 2.3 is arranged in the rotating cavity 1.1, the limiting gasket 2.3 abuts against the fixed tooth block 6, and the limiting gasket 2.3 and the fixed tooth block 6 are connected with the positioning column 1.4 through a screw. The limiting gasket 2.3 can limit the fixed tooth block 6 from separating from the rotating cavity 1.1, thereby ensuring the stability of the installation of the fixed tooth block 6.

[0038] As a preferred, the arc-shaped extension size of the limiting convex part 7 is greater than that of the guide convex block 1.3, thereby improving the guiding effect of the limiting convex part 7 on the adjusting wrench 5, so as to ensure the stability of the rotation of the adjusting wrench 5.

[0039] As shown in Figures 1-8 Further explanation about the sliding of the tool holder 3 in the embodiment, the adjusting wrench 5 is formed with an adjusting convex part 2.1, and the tool holder 3 is formed with an adjusting groove 2.2 for placing the adjusting convex part 2.1. With the rotation of the adjusting wrench 5, the adjusting convex part 2.1 will pull the tool holder 3 to move through the adjusting groove 2.2.

[0040] Preferably, the shell 1 is provided with a bottom plate 1.5 on both sides, and the bottom plate 1.5 is provided with a sliding groove 1.6 for sliding of the tool holder 3, the tool holder 3 is guided and limited by the sliding groove 1.6, and the stability of the tool holder 3 during sliding is ensured.

[0041] In some other embodiments, the adjusting wrench 5 is provided with a stroke guide rod 2.4, and the shell 1 is provided with a stroke groove 2.5, the stroke guide rod 2.4 is arranged in the stroke groove 2.5, and the stroke guide rod 2.4 abuts against the groove wall of the stroke groove 2.5, thereby limiting the rotating stroke of the adjusting wrench 5, and the convenience during adjustment is improved.

[0042] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and a person skilled in the art can make a modification without creative contribution according to the need after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A built-in adjustment mechanism for an electric clipper wrench, comprising a housing (1), a movable blade (2) fixedly disposed on the housing (1), and a blade holder (3) slidably disposed on the housing (1), wherein a fixed blade (4) is disposed on the blade holder (3), characterized in that, The housing (1) is provided with an adjusting wrench (5) for driving the tool holder (3) to move. The housing (1) is fixed with a fixed tooth block (6). A limiting protrusion (7) is formed on the fixed tooth block (6). The adjusting wrench (5) is provided with a plurality of limiting grooves (8) for the limiting protrusions (7) to be inserted. The limiting protrusions (7) are inserted into the limiting grooves (8) so that the adjusting wrench (5) is kept at the current angle.

2. The built-in adjustment mechanism of the wrench in an electric clipper according to claim 1, characterized in that, The adjusting wrench (5) has a rotating cavity (1.1), the fixed tooth block (6) is placed in the rotating cavity (1.1), and the limiting groove (8) is formed on the cavity wall of the rotating cavity (1.1) and is arranged at equal intervals along the cavity wall.

3. The built-in adjustment mechanism of the wrench in an electric clipper according to claim 1, characterized in that, The fixed tooth block (6) has an arc-shaped limiting protrusion (1.2) and a guide protrusion (1.3) formed on it, and the limiting protrusion (7) is formed on the outer contour of the limiting protrusion (1.2).

4. The built-in adjustment mechanism of the wrench in an electric clipper according to claim 3, characterized in that, The number of the limiting protrusions (1.2) is at least two, and the limiting protrusions (1.2) are arranged opposite to each other.

5. The built-in adjustment mechanism of the wrench in an electric clipper according to claim 3, characterized in that, The arc-shaped extension dimension of the limiting protrusion (7) is larger than that of the guide protrusion (1.3).

6. The built-in adjustment mechanism of the wrench in an electric clipper according to claim 1, characterized in that, The housing (1) is provided with a positioning post (1.4), the fixed tooth block (6) is sleeved on the positioning post (1.4), and the positioning post (1.4) is arranged in the shape of a regular polygon.

7. The built-in adjustment mechanism of the wrench in an electric clipper according to claim 1, characterized in that, The housing (1) has base plates (1.5) formed on both sides, and the base plates (1.5) have sliding grooves (1.6) for the tool holder (3) to slide.

8. The built-in adjustment mechanism of the wrench in an electric clipper according to claim 1, characterized in that, The adjusting wrench (5) has an adjusting protrusion (2.1), and the tool holder (3) has an adjusting groove (2.2) for the adjusting protrusion (2.1) to be inserted.

9. The built-in adjustment mechanism of the wrench in an electric clipper according to claim 2, characterized in that, A limiting shim (2.3) is provided inside the rotating cavity (1.1). The limiting shim (2.3) abuts against the fixed tooth block (6) to prevent the fixed tooth block (6) from disengaging from the rotating cavity (1.1).

10. The built-in adjustment mechanism of the wrench in an electric clipper according to claim 1, characterized in that, The adjusting wrench (5) is provided with a stroke guide rod (2.4), and the housing (1) is formed with a stroke groove (2.5). The stroke guide rod (2.4) is placed in the stroke groove (2.5), and the stroke guide rod (2.4) abuts against the groove wall of the stroke groove (2.5) to restrict the rotation of the adjusting wrench (5).

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