Tool bit tooth spacing side face adjusting mechanism and trimming device

Abstract

The utility model provides a tool bit tooth spacing side face adjusting mechanism and a trimming device, the tool bit tooth spacing side face adjusting mechanism comprises an upper blade, a lower blade, a shell and an adjusting assembly, the upper blade and the lower blade are directly or indirectly installed on the shell respectively; the adjusting assembly comprises a sliding plate, an adjusting handle, a support assembly and a handle screw, the adjusting handle comprises a rod head provided with a first through hole, one end of the handle screw penetrates through the first through hole and then penetrates through a second through hole in one side of the sliding plate, and the other end of the handle screw is connected with the support assembly in a clamped mode. The support assembly abuts against the interior of the first through hole, the rod head is connected with the sliding plate and drives the sliding block plate to move, and the sliding plate is directly or indirectly connected with the upper blade or the lower blade. The support assembly comprises a handle support and a handle spring, the handle spring is arranged in an inner hole of the handle support in a sleeved mode, an annular protrusion is arranged in the first through hole, and the handle support abuts against the annular protrusion.

Description

TECHNICAL FIELD

[0001] The utility model relates to a trimming device technical field, specifically, a kind of cutter head tooth spacing side adjusting mechanism and trimming device. BACKGROUND

[0002] The trimming device for haircut includes electric clipper, and is one of important tools when people haircut. In order to be able to adapt to different cutting situation, the front-back distance between upper blade and lower blade needs to be adjusted. The existing electric clipper is generally provided with adjusting mechanism, the distance between upper blade and lower blade is adjusted by adjusting mechanism, and the adjustment of cutting amount and cutting length is realized.

[0003] The existing Chinese patent with publication number CN220261075U discloses a kind of electric clipper cutter head of adjustable dynamic cutter and fixed cutter tip distance, and it relates to electric clipper cutter head technology field.The electric clipper cutter head of adjustable dynamic cutter and fixed cutter tip distance, including fixed cutter, the top surface of the fixed cutter is provided with shell, the top surface of the shell is provided with spring support on one side of middle part, the bottom surface of the shell and located spring support side are movably connected with adjusting frame by shaft pin, and the side of the top surface of adjusting frame and the side of the bottom surface of spring support are movably connected by the activity of the plug-in of the column, the adjusting frame is used to move the spring support back and forth when rotating, the top surface of the fixed cutter and located sawtooth end is provided with dynamic cutter, and the top surface of the dynamic cutter is provided with dynamic cutter seat.

[0004] The adjusting mechanism used in prior art is not obvious in gear adjustment when adjusting the tooth distance between two blades, and people cannot perceive whether it is in place when frequently switching to shave head, so the protection of adjusting key is general. INVENTION CONTENTS

[0005] In view of the defects in prior art, the purpose of the utility model is to provide a kind of cutter head tooth spacing side adjusting mechanism and trimming device.

[0006] According to the cutter head tooth spacing side adjusting mechanism provided by the utility model, including upper blade, lower blade, shell and adjusting assembly, the upper blade and lower blade are directly or indirectly installed on the shell respectively;

[0007] The adjusting assembly includes sliding plate, adjusting handle, bracket assembly and handle screw, the adjusting handle includes the first through hole of rod head, one end of the handle screw passes through the first through hole and then passes through the second through hole on one side of the sliding plate, the other end of the handle screw is connected with the bracket assembly, the bracket assembly is abutted in the first through hole, the rod head is connected with the sliding plate and drives the sliding block plate to move, and the sliding plate is directly or indirectly connected with the upper blade or lower blade;

[0008] The bracket assembly includes a handle bracket and a handle spring. The handle spring is sleeved inside the inner hole of the handle bracket. An annular protrusion is provided in the first through hole, and the handle bracket abuts against the annular protrusion.

[0009] Preferably, a boss is provided on the side wall of the rod head facing the sliding plate, and a latch is also provided on one side of the sliding plate. The latch is connected to the second through hole, and the boss is engaged with the latch.

[0010] Preferably, the handle bracket includes a square bracket, and one end of the handle screw that engages with the handle bracket includes a square end, the outer surface of which matches the square inner hole surface of the square bracket.

[0011] Preferably, the handle spring includes a helical spring, and the two ends of the helical spring are respectively connected to the two ends of the handle bracket.

[0012] Preferably, the upper blade is fastened to the housing, the housing is provided with a sliding groove, the lower blade is connected to the slider plate, and the slider plate is installed in the sliding groove.

[0013] Preferably, the lower blade is fixed to the sliding plate by a blade head fixing screw.

[0014] Preferably, a guide block is also fastened to the lower blade, and the lower blade, guide block, and sliding plate are connected in sequence;

[0015] The bottom surface of the chute is provided with a guide slot hole, and the guide block matches the guide slot hole.

[0016] Preferably, a compression spring is provided on the sliding plate, and when the housing is assembled with the upper blade, the compression spring contacts the upper blade and is in a compressed state.

[0017] Preferably, the adjusting handle further includes a handle, which is integrally connected to or fastened to the handle head.

[0018] This utility model also provides a trimming device, including a side adjustment mechanism for the tooth spacing of the blade.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This utility model restricts the rotation of the handle bracket by setting a handle screw. The handle bracket will not rotate with the rotation of the adjustment handle. The handle bracket abuts against the adjustment handle. When the adjustment handle is rotated, the annular protrusion of the handle bracket and the adjustment handle engage with each other. The contact friction between the adjustment handle and the handle bracket is small, resulting in less wear and a longer service life for the adjustment handle.

[0021] 2. This utility model sets up a handle bracket and a handle spring. The handle spring is sleeved in the inner hole of the handle bracket. When the adjustment handle is rotated, the handle bracket and the annular protrusion of the adjustment handle engage with each other. The handle spring is compressed and provides elastic force to make the handle bracket jump up and down. The engagement produces a 'click' sound. One click indicates that a gear has been switched, realizing a gear feedback adjustment method, which can give the user a clearer adjustment signal.

[0022] 3. This utility model, by setting a handle bracket and a handle spring, with the handle spring sleeved in the inner hole of the handle bracket, provides clear feedback on the gear position when adjusting the blade. Because the handle bracket abuts against the adjusting handle, the adjusting handle will not rotate on its own, thus having a self-locking function.

[0023] 4. The adjustment mechanism provided in this utility model includes a sliding plate, an adjustment handle, a handle screw, a handle bracket, and a handle spring. It has low cost, better reliability, and realizes tooth pitch adjustment with feedback.

[0024] 5. This utility model allows the number of gears to be changed by rotating the handle screw, which unscrews the handle screw and causes the handle bracket to detach from the adjustment handle. The angle of the handle bracket within the first through hole can be adjusted to change the number of gears. Attached Figure Description

[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is an exploded view of the side adjustment mechanism for the tooth spacing of the cutter head, which is the main feature of this utility model.

[0027] Figure 2 This is a cross-sectional view of the side adjustment mechanism for the tooth spacing of the cutter head, which is the main feature of this utility model.

[0028] Figure 3 This utility model mainly embodies the three-dimensional structure of the side adjustment mechanism for the tooth spacing of the cutter head;

[0029] Figure 4 This utility model mainly illustrates the connection structure between the handle screw, the adjusting handle, and the bracket assembly;

[0030] Figure 5 This is a schematic diagram illustrating the connection structure between the handle bracket and the adjustment handle, which is the main features of this utility model.

[0031] Figure 6 This is a schematic diagram showing the structure of the adjustment handle, which is the main feature of this utility model.

[0032] Figure 7 This is a schematic diagram of the structure of the sliding plate, which is the main feature of this utility model.

[0033] In the picture:

[0034] Cutter head fixing screw 1 Adjusting handle 7

[0035] Lower blade 2, boss 701

[0036] Upper blade 3, shank 702

[0037] Guide block 4, rod head 703

[0038] Sliding plate 5 First through hole 704

[0039] Second through hole 501 Handle bracket 8

[0040] Bayonet 502, handle spring 9

[0041] 6 housing screws, 10 handle screws Detailed Implementation

[0042] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0043] like Figures 1 to 4 As shown, the present invention provides a side adjustment mechanism for the tooth spacing of a cutting head, comprising an upper blade 3, a lower blade 2, a housing 6, and an adjustment assembly. The upper blade 3 and the lower blade 2 are directly or indirectly mounted on the housing 6. Specifically, the adjustment assembly includes a sliding plate 5, an adjustment handle 7, a bracket assembly, and a handle screw 10. The adjustment handle 7 includes a rod head 703 with a first through hole 704. One end of the handle screw 10 passes through the first through hole 704 and then through a second through hole 501 on one side of the sliding plate 5. The other end of the handle screw 10 is engaged with the bracket assembly, which abuts against the first through hole 704. The rod head 703 is connected to the sliding plate 5 and drives the sliding plate to move. The sliding plate 5 is directly or indirectly connected to the upper blade 3 or the lower blade 2. More specifically, the bracket assembly includes a handle bracket 8 and a handle spring 9. The handle spring 9 is sleeved in the inner hole of the handle bracket 8. An annular protrusion is provided in the first through hole 704, and the handle bracket 8 abuts against the annular protrusion.

[0044] In this utility model, the handle spring 9 of the adjustment mechanism is sleeved in the inner hole of the handle bracket 8 to form a bracket assembly. One end of the handle screw 10 passes through the bracket assembly and then enters the second through hole 501 of the sliding plate 5. The shape of the other end of the handle screw 10 matches the inner hole plane of the handle bracket 8, so that the other end of the handle screw 10 is engaged with the bracket assembly. The bracket assembly cannot rotate relative to the handle screw 10. The bracket assembly with the matched handle screw 10 is abutted against the first through hole 704 of the rod head 703 of the adjustment handle 7. The connection between the adjustment handle 7 and the sliding plate 5 is realized through the handle screw 10. Then the rod head 703 is connected to the sliding plate 5 and can drive the sliding plate 5 to move. When the adjustment handle 7 is turned, the handle bracket 8 and the annular protrusion of the adjustment handle 7 engage with each other. The handle spring 9 is compressed, providing elastic force to make the handle bracket 8 jump up and down. The engagement produces a 'click' sound. One click indicates that a gear has been switched. At the same time, due to the limiting of the bracket assembly by the handle screw 10, the bracket assembly does not rotate with the rotation of the adjustment handle 7, reducing the friction between the bracket assembly and the adjustment handle 7. This results in less wear and a longer lifespan for the adjustment handle 7.

[0045] The handle screw 10 passes through the handle spring 9, handle bracket 8, adjusting handle 7, and sliding plate 5, and locks into the housing 6. The handle screw 10 engages with the inner hole of the handle bracket 8, preventing the handle bracket 8 from rotating, allowing it to move only up and down. By rotating the handle screw 10, it unscrews, and the bracket assembly disengages from the adjusting handle 7. The number of gears can be changed by adjusting the angle of the handle bracket 8 within the first through hole 704.

[0046] Specifically, the adjusting handle 7 also includes a lever 702, which is integrally connected to or securely connected to the lever head 703. For example... Figure 6 and Figure 7 As shown, a boss 701 is provided on the side wall of the rod head 703 facing the sliding plate 5. A latch 502 is also provided on one side of the sliding plate 5, which connects to the second through hole 501. The boss 701 is engaged with the latch 502. Since the handle screw 10 passes through the second through hole 501, the latch 502 connects to the second through hole 501. The boss 701 is inserted into the latch 502 position of the sliding plate 5. By turning the handle 702, the rod head 703 is rotated. The rod head 703 rotates around the handle screw 10, which drives the boss 701 to move. The boss 701 and the latch 502 cooperate to push the sliding plate 5 to move along the slide groove of the housing 6. The sliding plate 5 drives the upper blade 3 or the lower blade 2 to move back and forth, thereby realizing the adjustment of the back and forth position of the upper blade 3 and the lower blade 2, and realizing the adjustment of the blade tooth spacing.

[0047] Specifically, the support assembly includes a handle bracket 8 and a handle spring 9, with the handle spring 9 fitted inside the inner hole of the handle bracket 8. The handle spring 9 includes a helical spring, with its two ends connected to the two ends of the handle bracket 8, respectively. The handle bracket 8 includes a square bracket, and one end of the handle screw 10, which engages with the handle bracket 8, includes a square end. The outer surface of the square end matches the square inner hole surface of the square bracket. The engagement between the square inner hole of the handle bracket 8 and the square end of the handle screw 10 restricts the rotation of the support assembly relative to the handle screw 10.

[0048] Specifically, the upper blade 3 is fastened to the housing 6, and a compression spring is provided on the sliding plate 5. When the housing 6 and the upper blade 3 are assembled, the compression spring contacts the upper blade 3 and is in a compressed state. The compression spring prevents the sliding plate 5 from moving in the front-back direction, thus affecting the adjustment stability. The housing 6 is provided with a sliding groove, and the lower blade 2 is connected to the slider plate, which is installed in the sliding groove. The lower blade 2 is fixed to the sliding plate 5 by the blade head fixing screw 1. A guide block 4 is also fastened to the lower blade 2. The lower blade 2, guide block 4, and sliding plate 5 are connected in sequence. A guide slot hole is provided on the bottom surface of the sliding groove, and the guide block 4 matches the guide slot hole. By pushing the sliding plate 5 to move, the guide block 4 is driven to move. The guide block 4 slides along the guide slot hole, realizing the stability of the front-back movement of the lower blade 2.

[0049] This utility model discloses a side-mounted adjustment mechanism for the blade tooth spacing. By redesigning the side-mounted adjustment mechanism that drives the blade movement, the tooth spacing of the blade can be adjusted. The adjustment mechanism includes a sliding plate 5, an adjustment handle 7, a handle bracket 8, a handle spring 9, and a handle screw 10. The handle spring 9 is fitted inside the inner hole of the handle bracket 8 to form a bracket assembly. The handle screw 10 passes through this assembly, and its square end engages with the square inner hole of the handle bracket 8, preventing the handle bracket 8 from rotating. When the adjustment handle 7 is rotated, the handle bracket 8 and the annular protrusion of the adjustment handle 7 mesh together. The handle spring 9 is compressed, providing elasticity and causing the handle bracket 8 to bounce up and down. The meshing produces a 'click' sound, with one click indicating a shift in gear. This achieves a gear feedback adjustment method, providing the user with a clearer adjustment signal. The blade head adjustment provides clear feedback on the gear position, and the handle bracket 8 cannot rotate. When the adjustment handle 7 is moved, it rotates; when the adjustment handle 7 is stopped, it will not rotate on its own due to the contact between the handle bracket 8 and the adjustment handle 7, thus having a self-locking function. The adjustment handle 7 experiences minimal wear and has a long lifespan, meeting the requirements of normal use for 3 years. This utility model's side adjustment mechanism achieves a low-cost, more reliable, and feedback-based gear pitch adjustment method. Furthermore, the handle bracket 8 can be detached from the adjustment handle 7 by unscrewing the handle screw 10, and the number of gear positions can be changed by adjusting the angle of the handle bracket 8.

[0050] The present invention moves the sliding plate 5 by providing a boss 701 on the inner wall of the side of the adjusting handle 7 facing the sliding plate 5. The boss 701 cooperates with the slot 502 of the sliding plate 5. As the adjusting handle 7 rotates, the boss 703 rotates around the handle screw 10, and the boss 701 rotates along the axis of the handle screw 10, pushing the sliding plate 5 to move back and forth in the sliding groove of the housing 6 with the lower blade 2, thereby realizing the adjustment of the blade tooth spacing.

[0051] This utility model also provides a trimming device, including the aforementioned blade tooth spacing adjustment mechanism. The trimming tools of this utility model are not limited to electric clippers, hair trimmers, etc.

[0052] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A side adjustment mechanism for the tooth spacing of a cutting head, characterized in that, It includes an upper blade (3), a lower blade (2), a housing (6), and an adjustment assembly, wherein the upper blade (3) and the lower blade (2) are respectively directly or indirectly mounted on the housing (6); The adjustment assembly includes a sliding plate (5), an adjustment handle (7), a bracket assembly, and a handle screw (10). The adjustment handle (7) includes a rod head (703) with a first through hole (704). One end of the handle screw (10) passes through the first through hole (704) and then through a second through hole (501) on one side of the sliding plate (5). The other end of the handle screw (10) is engaged with the bracket assembly. The bracket assembly abuts against the first through hole (704). The rod head (703) is connected to the sliding plate (5) and drives the sliding plate to move. The sliding plate (5) is directly or indirectly connected to the upper blade (3) or the lower blade (2). The bracket assembly includes a handle bracket (8) and a handle spring (9). The handle spring (9) is sleeved in the inner hole of the handle bracket (8). An annular protrusion is provided in the first through hole (704). The handle bracket (8) abuts against the annular protrusion.

2. The side adjustment mechanism for the tooth spacing of the cutter head as described in claim 1, characterized in that, The rod head (703) has a boss (701) on the side wall facing the sliding plate (5), and a slot (502) is also provided on one side of the sliding plate (5). The slot (502) is connected to the second through hole (501), and the boss (701) is engaged with the slot (502).

3. The side adjustment mechanism for the tooth spacing of the cutter head as described in claim 1, characterized in that, The handle bracket (8) includes a square bracket, and one end of the handle screw (10) that is engaged with the handle bracket (8) includes a square end, the outer surface of which matches the square inner hole surface of the square bracket.

4. The side adjustment mechanism for the tooth spacing of the cutter head as described in claim 1, characterized in that, The handle spring (9) includes a helical spring, the two ends of which are respectively connected to the two ends of the handle bracket (8).

5. The side adjustment mechanism for the tooth spacing of the cutter head as described in claim 1, characterized in that, The upper blade (3) is fastened to the housing (6), the housing (6) is provided with a sliding groove, the lower blade (2) is connected to the slider plate, and the slider plate is installed in the sliding groove.

6. The side adjustment mechanism for the tooth spacing of the cutter head as described in claim 1, characterized in that, The lower blade (2) is fixed to the sliding plate (5) by the blade head fixing screw (1).

7. The side adjustment mechanism for the tooth spacing of the cutter head as described in claim 5, characterized in that, A guide block (4) is also fastened to the lower blade (2), and the lower blade (2), guide block (4), and sliding plate (5) are connected in sequence; The bottom surface of the chute is provided with a guide slot hole, and the guide block (4) matches the guide slot hole.

8. The side adjustment mechanism for the tooth spacing of the cutter head as described in claim 1, characterized in that, A compression spring is provided on the sliding plate (5). When the housing (6) is assembled with the upper blade (3), the compression spring contacts the upper blade (3) and is in a compressed state.

9. The side adjustment mechanism for the tooth spacing of the cutter head as described in claim 1, characterized in that, The adjustment handle (7) also includes a rod handle (702), which is integrally connected or fastened to the rod head (703).

10. A pruning device, characterized in that, The tool tooth pitch side adjustment mechanism includes any one of claims 1 to 9.

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