Single drive multi-head assemblies and trimming tools

Abstract

The present invention relates to a single-drive multi-blade head assembly and a pruning tool, which is characterized in that it includes at least two blade head parts arranged side by side, a linkage part is provided between the adjacent blade head parts, and when any blade head part is linked to a power source and swings back and forth under the drive of the power source, the other blade head parts swing back and forth synchronously under the drive of the linkage part. The beneficial effect of the present invention is that one of the multiple blade head parts is directly linked to the power source, and then the adjacent blade head parts are linked to each other by using the linkage part. When the power source drives one of the blade head parts to swing back and forth, the linkage part can synchronously drive the other blade head parts to swing back and forth synchronously, which relatively reduces the swinging parts and not only reduces the production cost; but also greatly optimizes the transmission structure of the pruning tool, so that the pruning tool can be adapted to multiple blade head assemblies of different purposes or types, realizing multiple uses of one machine. Secondly, it can also improve the sealing and reliability of the fuselage.

Description

Technical Field

[0001] The present invention relates to a hair trimming device, and more particularly to a single-drive multi-blade head assembly and a trimming tool, which are mainly used in the field of hair trimming such as shavers. Background Art

[0002] A multi-head assembly refers to a combination of multiple heads with different functions for trimming different hair types, which are then installed in hair trimming tools such as shavers and trimmers, so that the hair trimming tools can be used for trimming different hair types (long hair or short hair) at the same time, thereby improving the applicability of the trimming tools.

[0003] The independent reciprocating swing of each blade in the existing multi-blade assembly must be achieved by an oscillating member (also known as a vibrator, vibrator, etc. in the industry) provided on the body of the pruning tool, and the oscillating member is driven by the motor output shaft in the body, such as:

[0004] 2 and 3 in FIG. 10 of CN111438712A, and

[0005] CN108789508B Figure 3 As shown in 32 and 33,

[0006] CN09176610A Figure 4 As shown in 33 and 34,

[0007] CN112549090A Figure 9 As shown in 7 and 8,

[0008] As shown in 26 and 29 in FIG. 10 of CN115042234A, or

[0009] US11679520B2 Figure 5 As shown in the patent documents disclosed in 61 etc.

[0010] From the technical solutions disclosed in the above patent documents, although the provision of a swinging member can satisfy the independent reciprocating swing of each blade head in the multi-blade head assembly, it also makes the transmission structure of the pruning tool more complicated and the cost higher. Summary of the Invention

[0011] In order to solve the above technical problems, the present invention provides a single-drive multi-blade head assembly and a pruning tool. The multi-blade head assembly can realize independent reciprocating swing of each blade head without the aid of a swinging member, simplifying the transmission structure of the pruning tool and reducing production costs.

[0012] In order to solve the above technical problems, the technical solution adopted by the present invention is a single-drive multi-cutting head assembly, comprising at least two cutter head components arranged side by side, with a linkage member provided between adjacent cutter head components;

[0013] The cutter head component includes any main cutter head component linked to the power source and one or more auxiliary cutter head components, wherein:

[0014] The main blade head assembly includes a main static blade unit and an active blade unit. The active blade unit is placed inside the main static blade unit and is supported by a support member so that the active blade unit fits the main static blade unit. The active blade unit is linked to a power source and can swing back and forth along the main static blade unit under the drive of the power source.

[0015] The auxiliary blade head component includes an auxiliary static blade unit and an auxiliary movable blade unit. The auxiliary movable blade unit is placed inside the auxiliary static blade unit and is supported by the support member so that the auxiliary movable blade unit and the auxiliary static blade unit are fitted together.

[0016] The auxiliary cutting head components are arranged side by side on either side of the main cutting head component or on both sides of the main cutting head component;

[0017] The linkage member includes a hinge shaft and a hinge seat with a hinge hole. The hinge shaft is fixed on the auxiliary static knife unit. A first linkage end and a second linkage end are respectively provided on both sides of the hinge hole in the hinge seat.

[0018] The adjacent active knife units and auxiliary movable knife units and the adjacent two auxiliary movable knife units are respectively linked by the first linkage end and the second linkage end, so that when the active knife unit swings back and forth under the drive of the power source, the adjacent auxiliary movable knife units swing back and forth in opposite directions.

[0019] Preferably, the auxiliary static knife unit includes an auxiliary static knife and an auxiliary static knife seat. The auxiliary static knife seat includes two end plates and two side plates, which are connected in sequence to form a frame shape. The auxiliary static knife cover is placed above the frame and its two sides are connected and fixed to the corresponding two side plates. A positioning seat is provided on at least one of the two side plates, and the hinge shaft is fixed on the positioning seat.

[0020] Preferably, the active knife unit includes an active knife and an active knife holder, and the active knife is fixed on the active knife holder. The auxiliary movable knife unit includes an auxiliary movable knife and an auxiliary movable knife holder, and the auxiliary movable knife is fixed on the auxiliary movable knife holder. The active knife holder and the auxiliary movable knife holder are respectively provided with a driving groove that can cooperate with the output shaft of the power source, and a linkage groove is arranged on one side or both sides of the driving groove. The first linkage end and the second linkage end of the linkage member are respectively placed in the linkage groove, so that the auxiliary movable knife holder and the active knife holder are synchronously linked.

[0021] Different from the above-mentioned reciprocating swinging method in opposite directions, this embodiment provides a single-drive multi-cutting head assembly that reciprocates in the same direction, including at least two cutter head components arranged side by side, and a linkage member is provided between adjacent cutter head components;

[0022] The cutter head component includes any main cutter head component linked to the power source and one or more auxiliary cutter head components, wherein:

[0023] The main blade head assembly includes a main static blade unit and an active blade unit. The active blade unit is placed inside the main static blade unit and is supported by a support member so that the active blade unit fits the main static blade unit. The active blade unit is linked to a power source and can swing back and forth along the main static blade unit under the drive of the power source.

[0024] The auxiliary blade head component includes an auxiliary static blade unit and an auxiliary movable blade unit. The auxiliary movable blade unit is placed inside the auxiliary static blade unit and is supported by the support member so that the auxiliary movable blade unit and the auxiliary static blade unit are fitted together.

[0025] The auxiliary cutting head components are arranged side by side on either side of the main cutting head component or on both sides of the main cutting head component;

[0026] The linkage part includes a first linkage end and a second linkage end. The first linkage end and the second linkage end are respectively fixedly connected or limit-connected to the active knife unit, the auxiliary movable knife unit and the two adjacent auxiliary movable knife units, and when the power source drives the active knife unit to swing back and forth, the auxiliary movable knife unit follows the active knife unit to swing back and forth synchronously in the same direction.

[0027] Preferably, the active knife unit includes an active knife and an active knife holder, and the active knife is fixed on the active knife holder. The auxiliary movable knife unit includes an auxiliary movable knife and an auxiliary movable knife holder, and the auxiliary movable knife is fixed on the auxiliary movable knife holder. The active knife holder and the auxiliary movable knife holder are respectively provided with a driving groove that can cooperate with the output shaft of the power source, and a linkage groove is arranged on one side or both sides of the driving groove. The first linkage end and the second linkage end of the linkage member are respectively placed in the linkage groove, so that the auxiliary movable knife holder and the active knife holder are synchronously linked.

[0028] On the basis of the above technical solution, the applicant also proposes a pruning tool comprising the above single-drive multi-blade head assembly.

[0029] The beneficial effect of the present invention is that one of the multiple cutter head components is directly linked to the power source, and then the adjacent cutter head components are linked by a linkage. When the power source drives one of the cutter head components to swing back and forth, the linkage can synchronously drive the remaining cutter head components to swing back and forth synchronously under the action of the linkage, which relatively reduces the number of swinging parts and not only reduces production costs; but also greatly optimizes the transmission structure of the pruning tool, allowing the pruning tool to adapt to multiple cutter head assemblies of different uses or types, realizing multiple uses of one machine. Secondly, the body of the pruning tool has fewer swinging parts, and the sealing and reliability of the body can be maximized. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional structural diagram of a single-drive multi-tool assembly according to an embodiment of the present invention

[0031] Figure 2 A front plan view of a single-drive multi-tool assembly according to an embodiment of the present invention

[0032] Figure 3 A three-dimensional structural diagram of the main cutting head component in an embodiment of the present invention

[0033] Figure 4 A cross-sectional structural diagram of the main cutting head component in an embodiment of the present invention

[0034] Figure 5 A three-dimensional structural diagram of the auxiliary blade head component in an embodiment of the present invention

[0035] Figure 6 A cross-sectional structural diagram of the auxiliary blade head component in an embodiment of the present invention

[0036] Figure 7 A three-dimensional structural diagram of the linkage member in an embodiment of the present invention

[0037] Figure 8 This is the second embodiment of the linkage member in the embodiment of the present invention

[0038] Figure 9 A perspective view of the second assembly method of a single-drive multi-tool assembly according to an embodiment of the present invention DETAILED DESCRIPTION

[0039] The following is combined with the accompanying drawings Figure 1-9 The embodiments of the present invention are further described as follows:

[0040] Since each blade component in the existing multi-blade head assembly must rely on the drive of two swinging members to achieve reciprocating swing, and the swinging member is then connected to a power source (which can also be regarded as the output shaft of the drive motor, not shown in the figure), this makes the transmission structure of the pruning tool relatively complicated and the production cost is also higher. To this end, the present invention provides a single-drive multi-blade head assembly that can achieve reciprocating swing directly by the drive of the power source without the need for a swinging member, which includes at least two blade components 1 arranged side by side, and a linkage member 2 is provided between the adjacent blade components 1. When any blade component 1 is linked to the power source and swings back and forth under the drive of the power source, the other blade components 1 swing back and forth synchronously under the drive of the linkage member 2. One of the multiple cutter head components 1 is directly linked to the power source, and then the adjacent cutter head components 1 are linked by the linkage 2. When the power source drives one of the cutter head components 1 to swing back and forth, the linkage 2 can synchronously drive the remaining cutter head components 1 to swing back and forth synchronously, thereby relatively reducing the number of swinging parts and not only reducing production costs; it can also greatly optimize the transmission structure of the pruning tool, allowing the pruning tool to adapt to multiple cutter head assemblies of different uses or types, and realize multiple uses of one machine. Secondly, the number of swinging parts on the body of the pruning tool is reduced, and the sealing and reliability of the body can be maximized.

[0041] In order to improve the hair trimming efficiency of the trimming tool, the blade head component 1 includes any main blade head component 11 and one or more auxiliary blade head components 12 that are linked to the power source. The main blade head component 11 and the auxiliary blade head component 12 can have the same hair trimming purpose, or they can have different hair trimming purposes. For example, the main blade head component 11 can be suitable for trimming long hair, and the auxiliary blade head component 12 is mainly suitable for trimming short hair. Of course, the main blade head component 11 and the auxiliary blade head component 12 can use blade head components 1 with the same hair trimming purpose, and the specific selection can be customized according to user needs. Therefore, the main blade head component 11 does not refer to a blade head component 1 with a special purpose. Any blade head component 1 can be regarded as the main blade head component 11 when it is linked to the power source. The auxiliary blade head component 12 is driven by the linkage 2 and is synchronously linked with the main blade head component 11. This is specially explained here.

[0042] In the actual assembly process, the number of auxiliary blade components 12 can be selected according to needs, and at least one is provided. When multiple auxiliary blade components 12 are provided, such as two, three, or four auxiliary blade components 12, the auxiliary blade components 12 can be arranged side by side on one side of the main blade component 11, or the auxiliary blade components 12 can be placed on both sides of the main blade component 11.

[0043] To ensure hair trimming performance, the main blade head assembly 11 includes a main static blade unit 111 and an active blade unit 112. The active blade unit 112 is placed within the main static blade unit 111 and is supported by the support member 13 so that the active blade unit 112 fits in contact with the main static blade unit 111. The active blade unit 112 is linked to a power source and, driven by the power source, can swing back and forth along the main static blade unit 111. The auxiliary blade head assembly 12 includes an auxiliary static blade unit 121 and an auxiliary movable blade unit 122. The auxiliary movable blade unit 122 is placed within the auxiliary static blade unit 121 and is supported by the support member 13 so that the auxiliary movable blade unit 122 fits in contact with the auxiliary static blade unit 121. A support member 13 is provided below the active knife unit 112 and the auxiliary movable knife unit 122. With the support of the support member 13, not only can the active knife unit 112 and the auxiliary movable knife unit 122 always be in close contact with the corresponding main static knife unit 111 and the auxiliary static knife unit 121, thereby improving the hair trimming performance; at the same time, when the main static knife unit 111 and the auxiliary static knife unit 121 are subjected to external force, the support member 13 can shrink downward accordingly, providing a buffer space for the active knife unit 112 and the auxiliary movable knife unit 122, effectively avoiding damage to the main static knife unit 111, the active knife unit 112, the auxiliary static knife unit 121 and the auxiliary movable knife unit 122 after being subjected to force, thereby extending the safety and service life of the main static knife unit 111, the active knife unit 112, the auxiliary static knife unit 121 and the auxiliary movable knife unit 122.

[0044] To facilitate the synchronous reciprocating swing of the auxiliary blade head assembly 12 with the primary blade head assembly 11, a linkage 2 is provided between adjacent active blade units 112 and auxiliary blade units 122. When the active blade unit 112 is driven by the power source, the adjacent auxiliary blade units 122 reciprocate in the same direction or in opposite directions. If there are multiple auxiliary blade head assemblies 12, linkages 2 may also be provided between adjacent auxiliary blade units 122, so that the active blade units 112 and auxiliary blade units 122, and the auxiliary blade units 122 and auxiliary blade units 122 are connected in series. In this way, when the active blade unit 112 reciprocates under the drive of the power source, the linkage 2 can sequentially transfer kinetic energy, causing each auxiliary blade unit 122 to reciprocate synchronously with the active blade unit 112 in the same direction or in opposite directions.

[0045] In order to reduce the vibration of the multi-blade head assembly during reciprocating cutting, the linkage 2 includes a hinge shaft 21 and a hinge seat 23 provided with a hinge hole 22. The hinge shaft 21 is fixed to the auxiliary static blade unit 121. Of course, in the actual production process, the hinge shaft 21 can also be fixed to the main static blade unit 111, as long as it is convenient for production, processing and assembly. A first linkage end 24 and a second linkage end 25 are respectively provided on both sides of the hinge hole 22 in the hinge seat 23. The adjacent active blade units 112 and the auxiliary movable blade units 122 are respectively connected by the first linkage end 24 and the second linkage end 25, so that when the active blade unit 112 is driven by the power source to swing back and forth, the adjacent auxiliary movable blade units 122 swing back and forth in opposite directions. By adding a first linkage end 24 and a second linkage end 25 on opposite sides of the hinge seat 23, and making the first linkage end 24 and the second linkage end 25 linked to the active knife unit 112 and the auxiliary movable knife unit 122 respectively, when the power source drives the active knife unit 112 to swing back and forth, it is restricted by the hinge shaft 21 and the second linkage end 25 can only move in the opposite direction of the first linkage end 24, thereby driving the auxiliary movable knife unit 122 to swing back and forth synchronously in the opposite direction. When the active knife unit 112 and the auxiliary movable knife unit 122 swing back and forth synchronously in opposite directions, the vibration generated during the swinging can offset each other, which can not only ensure the stability of the operation of the multi-blade head assembly, but also improve the comfort of use of the pruning tool.

[0046] When there are more than two auxiliary blade head components 12, no matter they are arranged side by side on one side of the main blade head component 11 or on both sides of the main blade head component 11, there must be two auxiliary blade head components 12 in a side-by-side adjacent state. At this time, the linkage part 2 is not only arranged between the active blade unit 112 and the auxiliary movable blade unit 122, but also a linkage part 2 must be set between the two adjacent auxiliary movable blade units 122, so that the active blade unit 112 and the auxiliary movable blade unit 122, as well as the auxiliary movable blade unit 122 and the auxiliary movable blade unit 122 are respectively linked and connected through the first linkage end 24 and the second linkage end 25. When the power source drives the active blade unit 112 to swing back and forth, it is restricted by the hinge shaft 21, and the adjacent active blade units 112, auxiliary movable blade unit 122, and auxiliary movable blade unit 122 and auxiliary movable blade unit 122 swing back and forth in opposite directions to each other, which can minimize the vibration of the multi-blade head assembly during operation and improve the comfort of use of the pruning tool.

[0047] Of course, the installation structure of the linkage 2 can also be changed so that the auxiliary blade head component 12 and the main blade head component 11 swing back and forth in the same direction. For example, the hinge hole 22 of the linkage 2 can be removed, and the first linkage end 24 and the second linkage end 25 of the linkage 2 can be fixedly connected or limit-connected to the active knife unit 112 and the auxiliary movable knife unit 122 respectively. The fixed connection means that the first linkage end 24 and the second linkage end 25 are respectively an integral structure with the corresponding active knife unit 112 and the auxiliary movable knife unit 122; and the limit connection means that the first linkage end 24 and the second linkage end 25 are respectively connected to the corresponding active knife unit 112 and the auxiliary movable knife unit 122 using a square hole or a square shaft or other similar limit structure for limiting rotation; in this way, when the power source drives the active knife unit 112 to swing back and forth, the auxiliary movable knife unit 122 can follow the active knife unit 112 to swing back and forth synchronously in the same direction. However, due to the reciprocating swing in the same direction, the vibration of the multi-movable blade assembly is relatively strong, which affects the hand-held grip of the pruning tool and reduces the comfort of use. Therefore, reciprocating swing in opposite directions is the preferred embodiment.

[0048] To facilitate the articulated assembly of the linkage 2, the auxiliary static blade unit 121 includes an auxiliary static blade 123 and an auxiliary static blade holder 124. The auxiliary static blade holder 124 comprises two end plates 125 and two side plates 126, which are connected in sequence to form a frame. The auxiliary static blade 123 is placed above the frame, with its sides connected and fixed to the corresponding side plates 126. At least one of the side plates 126 is provided with a positioning seat 127, to which the hinge shaft 21 is fixed. To ensure the secure installation of the hinge shaft 21, the end plates 125 and the side plates 126 are respectively made of metal and welded together to form a single body; however, plastic materials can also be used by increasing the thickness of the side plates 126. The positioning seat 127 is formed by bending along the side plates 126. In the actual production process, a sealing plate 128 is provided at the bottom of the two side plates 126, which is used to connect the two side plates 126 and welded to the two side plates 126. While improving the working strength of the auxiliary static knife seat 124, the spring column 129 provided on the sealing plate 128 can also be used to fix the support member 13 (the support member 13 is preferably a spring) to prevent the support member 13 from detaching, thereby ensuring that the auxiliary movable knife unit 122 always remains in contact with the auxiliary static knife 123.

[0049] To facilitate the synchronous linkage of the active blade unit 112 and the auxiliary movable blade unit 122, the active blade unit 112 includes an active blade 113 and an active blade holder 114. The active blade 113 is fixed to the active blade holder 114. The auxiliary movable blade unit 122 includes an auxiliary movable blade 122A and an auxiliary movable blade holder 122B. The auxiliary movable blade 122A is fixed to the auxiliary movable blade holder 122B. A drive slot 14 is provided on the active blade holder 114 and the auxiliary movable blade holder 122B, respectively, which can cooperate with the output shaft of the power source. Depending on the actual assembly conditions or the position of the power source (i.e., the motor output shaft) on the machine body, the drive slot 14 on either the active blade holder 114 or the auxiliary movable blade holder 122B can be linked to the power source. In this embodiment, the power source is linked to the drive slot 14 on the active blade holder 114. In order to ensure the synchronous linkage of the auxiliary movable knife seat 122B and the active knife seat 114, a linkage groove 15 is provided on one side or both sides of the driving groove 14 on the active knife seat 114 and the auxiliary movable knife seat 122B, and the first linkage end 24 and the second linkage end 25 of the linkage member 2 are respectively placed in the linkage groove 15, so that the auxiliary movable knife seat 122B and the active knife seat 114 are synchronously linked. The linkage groove 15 is only a description of a limiting structure, which does not mean that only a groove structure can be used. It can also be set as an axial hole matching structure. For example, in the actual production process, a linkage groove 15 is provided on the active knife seat 114, and the first linkage end 24 of the linkage member 2 is inserted into the linkage groove 15; and an inwardly recessed slot hole 16 is provided on the auxiliary movable knife seat 122B, and a pin 251 is provided on the second linkage end 25. The pin 251 is inserted into the slot hole 16 to form a synchronous linkage between the auxiliary movable knife seat 122B and the active knife seat 114. When the two auxiliary tool head components 12 are arranged adjacent to each other, such as Figure 8 As shown, a pin 251 is provided on the first linkage end 24 and the second linkage end 25 respectively. The two pins 251 are respectively inserted into two adjacent and parallel slots 16, so that the adjacent and parallel auxiliary movable knife units 122 are driven by the active knife unit 112 to swing back and forth in opposite directions.

[0050] Based on the technical solution of the single-drive multi-blade head assembly, the applicant also proposes a pruning tool including the above-mentioned single-drive multi-blade head assembly.

[0051] The above embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the scope of protection of the present invention.

Claims

1. Single drive multi-tool assembly, characterized by It comprises at least two cutter head components (1) arranged side by side, and a linkage component (2) is provided between the adjacent cutter head components (1); The cutter head component (1) comprises any one main cutter head component (11) linked to a power source and one or more auxiliary cutter head components (12), wherein: The main blade head component (11) comprises a main static blade unit (111) and an active blade unit (112); the active blade unit (112) is placed in the main static blade unit (111) and is supported by a support member (13) so that the active blade unit (112) and the main static blade unit (111) are in contact with each other; the active blade unit (112) is linked to a power source and can swing back and forth along the main static blade unit (111) under the drive of the power source; The auxiliary blade head component (12) includes an auxiliary static blade unit (121) and an auxiliary movable blade unit (122). The auxiliary movable blade unit (122) is placed in the auxiliary static blade unit (121), and is supported by a support member (13) so that the auxiliary movable blade unit (122) and the auxiliary static blade unit (121) are in contact with each other. The auxiliary cutting head component (12) is arranged side by side on either side of the main cutting head component (11) or on both sides of the main cutting head component (11); The linkage member (2) includes a hinge shaft (21) and a hinge seat (23) provided with a hinge hole (22); the hinge shaft (21) is fixed on the auxiliary static knife unit (121); a first linkage end (24) and a second linkage end (25) are respectively provided on both sides of the hinge hole (22) in the hinge seat (23); Adjacent active knife units (112) and auxiliary movable knife units (122), as well as two adjacent auxiliary movable knife units (122), are linked via a first linkage end (24) and a second linkage end (25), respectively, so that when the active knife unit (112) is driven by a power source to swing back and forth, the adjacent auxiliary movable knife units (122) swing back and forth in opposite directions.

2. The single-drive multi-tool assembly according to claim 1, characterized in that The auxiliary static knife unit (121) includes an auxiliary static knife (123) and an auxiliary static knife seat (124). The auxiliary static knife seat (124) includes two end plates (125) and two side plates (126), which are connected in sequence to form a frame. The auxiliary static knife (123) is placed on the top of the frame and its two sides are connected and fixed to the corresponding two side plates (126). A positioning seat (127) is provided on at least one side plate (126) of the two side plates (126), and the hinge shaft (21) is fixed on the positioning seat (127).

3. The single-drive multi-tool assembly according to claim 1, wherein The active knife unit (112) includes an active knife (113) and an active knife seat (114), wherein the active knife (113) is fixed on the active knife seat (114); the auxiliary movable knife unit (122) includes an auxiliary movable knife (122A) and an auxiliary movable knife seat (122B), wherein the auxiliary movable knife (122A) is fixed on the auxiliary movable knife seat (122B); the active knife seat (114) and the auxiliary movable knife seat (122B) are respectively provided with a driving groove (14) which can be matched with the output shaft of the power source, and a linkage groove (15) arranged on one side or both sides of the driving groove (14); the first linkage end (24) and the second linkage end (25) of the linkage member (2) are respectively placed in the linkage groove (15), so that the auxiliary movable knife seat (122B) and the active knife seat (114) are synchronously linked.

4. Single drive multi-tool assembly, characterized by It comprises at least two cutter head components (1) arranged side by side, and a linkage component (2) is provided between the adjacent cutter head components (1); The cutter head component (1) comprises any one main cutter head component (11) linked to a power source and one or more auxiliary cutter head components (12), wherein: The main blade head component (11) comprises a main static blade unit (111) and an active blade unit (112); the active blade unit (112) is placed in the main static blade unit (111) and is supported by a support member (13) so that the active blade unit (112) and the main static blade unit (111) are in contact with each other; the active blade unit (112) is linked to a power source and can swing back and forth along the main static blade unit (111) under the drive of the power source; The auxiliary blade head component (12) includes an auxiliary static blade unit (121) and an auxiliary movable blade unit (122). The auxiliary movable blade unit (122) is placed in the auxiliary static blade unit (121), and is supported by a support member (13) so that the auxiliary movable blade unit (122) and the auxiliary static blade unit (121) are in contact with each other. The auxiliary cutting head component (12) is arranged side by side on either side of the main cutting head component (11) or on both sides of the main cutting head component (11); The linkage member (2) comprises a first linkage end (24) and a second linkage end (25). The first linkage end (24) and the second linkage end (25) are respectively fixedly connected or position-limitedly connected to the active knife unit (112) and the auxiliary movable knife unit (122) and two adjacent auxiliary movable knife units (122). When the power source drives the active knife unit (112) to swing back and forth, the auxiliary movable knife unit (122) follows the active knife unit (112) and swings back and forth synchronously in the same direction.

5. The single-drive multi-tool assembly according to claim 4, characterized in that The active knife unit (112) includes an active knife (113) and an active knife seat (114), wherein the active knife (113) is fixed on the active knife seat (114); the auxiliary movable knife unit (122) includes an auxiliary movable knife (122A) and an auxiliary movable knife seat (122B), wherein the auxiliary movable knife (122A) is fixed on the auxiliary movable knife seat (122B); the active knife seat (114) and the auxiliary movable knife seat (122B) are respectively provided with a driving groove (14) which can be matched with the output shaft of the power source, and a linkage groove (15) arranged on one side or both sides of the driving groove (14); the first linkage end (24) and the second linkage end (25) of the linkage member (2) are respectively placed in the linkage groove (15), so that the auxiliary movable knife seat (122B) and the active knife seat (114) are synchronously linked.

6. A pruning tool, characterized in that A single-drive multi-tool head assembly comprising the invention as claimed in any one of claims 1 to 3 or 4 to 5.

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