Angle-adjustable rotating head and handheld saw thereof

Abstract

The utility model relates to an angle-adjustable rotating head and a handheld saw thereof. The angle-adjustable rotating head comprises a handheld main body and a driving main body, and a first clamping piece is arranged in the arc groove of the handheld main body. The driving body comprises a driving shell, a power source and a second clamping piece. A through groove is formed in the side, close to the handheld body, of the driving shell. The second clamping piece comprises a pressing part and a movable clamping part, the pressing part can press and move relative to the driving shell, the movable clamping part is arranged at the through groove, and the pressing part can drive the movable clamping part to move, so that the movable clamping part is not clamped with the first clamping piece, and the driving body can rotate relative to the arc groove; the rotation angle of the driving body is adjusted. The problems that when an existing handheld saw is used for cutting branches with unsatisfactory angles, the operation difficulty is large, so that the pruning effect of the existing handheld saw on the branches is poor, and the pruning efficiency is reduced are solved. The angle of the handheld saw cutting main body can be adjusted according to requirements, the operation difficulty can be reduced, the trimming effect is better, and the trimming efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of garden pruning equipment, in particular to an angle-adjustable rotating head and a hand-held saw thereof. Background Art

[0002] With the continuous improvement of living standards, the demand for housing and tourism has gradually increased. There are a large number of garden trees in the parks where people live and the scenic spots they visit. Therefore, landscaping is a common task at present.

[0003] At present, in the process of landscaping, gardeners generally use existing hand-held saws to prune trees. However, the existing hand-held saws include a hand-held main body and a cutting saw head, wherein the output end of the driving motor of the hand-held main body is rotatably connected to the cutting saw head, and the hand-held main body includes a hand-held part and a motor part, and the motor part is integrally formed with the hand-held part, resulting in the inability to adjust the angle of the cutting saw head. However, when pruning the same tree, due to the different heights and directions of the branches of the tree, it is difficult for gardeners to use the existing hand-held saw to prune branches with undesirable angles. Therefore, the existing hand-held saw has a poor pruning effect on branches, reducing pruning efficiency. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides an angle-adjustable rotating head and a hand-held saw thereof, which solves the technical problem that the existing hand-held saws are difficult to operate when the angle of the branches is not ideal. Therefore, the existing hand-held saws have poor pruning effect on branches and reduce pruning efficiency.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] In a first aspect, an angle-adjustable rotating head and a hand-held saw thereof include a hand-held body and a driving body;

[0009] The handheld body has an open arc groove, and a first clamping piece that cooperates with the driving body is arranged in the arc groove;

[0010] The driving body comprises a driving housing, a power source fixedly mounted on the driving housing, and a second clamping member clamped with the first clamping member and disposed on the driving housing;

[0011] A through groove communicating with the inner cavity of the driving housing is provided on one side of the driving housing close to the handheld body;

[0012] The second clamping member includes an integrally formed pressing portion and a movable clamping portion, the pressing portion is arranged on a side wall of the driving shell, the pressing portion can be pressed and moved relative to the driving shell, the movable clamping portion is arranged at the through groove, and the pressing portion can drive the movable clamping portion to move in a direction away from the first clamping member so that the movable clamping portion is disengaged from the first clamping member, and the driving body can rotate relative to the arc groove to adjust the rotation angle of the driving body.

[0013] Optionally, the first clamping member comprises an arc-shaped plate integrally formed with the handheld body, and a plurality of clamping grooves are formed outwardly on the inner side wall of the arc-shaped plate;

[0014] The movable clamping portion has a plurality of clamping blocks protruding outward, and the clamping blocks can be clamped in the clamping slots opposite thereto.

[0015] Optionally, the card slot is a trapezoidal card slot with a wide opening.

[0016] Optionally, the drive housing includes a first shell and a second shell;

[0017] The first shell and the second shell are interlocked to form a main shell having the inner cavity. The first shell and the second shell are each provided with a center hole extending through the inner cavity along their axis. The power source is installed on one side of the first shell, and a drive shaft of the power source extends along its axis toward one side of the second shell and passes through the second shell, and a bearing is arranged between the drive shaft and the center hole.

[0018] Optionally, the drive housing further includes a protective cover hinged to the second shell.

[0019] In a second aspect, a hand-held saw comprises the angle-adjustable rotating head and a cutting body connected to the rotating head;

[0020] The power source of the rotating head drives the cutting body to transmit through the transmission mechanism, so that the chain on the cutting body is cut.

[0021] Optionally, the transmission mechanism includes a sprocket, which is disposed in a groove of the second shell and connected to a driving shaft of the power source.

[0022] Optionally, the cut-off body includes a guide plate, a protective cover and the chain;

[0023] The guide plate is locked to the second shell by a locking piece, and guide grooves are opened around the outer circle of the guide plate. One end of the chain engages with the sprocket and is installed in the guide groove. The protective cover is arranged above the guide plate and fixedly installed on the second shell.

[0024] (III) Beneficial effects

[0025] The beneficial effect of the utility model is as follows: the utility model is an angle-adjustable rotating head and a hand-held saw thereof, comprising a hand-held body and a driving body, and the two are matched and clamped by a first clamping part and a second clamping part, so that the driving body can rotate relative to the hand-held body along the arc groove. Specifically, when it is necessary to adjust the angle of the driving body on the rotating head, the pressing part of the second clamping part is pressed, and the pressing part is moved away from the first clamping part to drive the movable clamping part to slide relative to the through groove to move away from the first clamping part, so that the movable clamping part is separated from the clamping groove on the first clamping part. At this time, the driving body can rotate. When it rotates to a suitable angle, the pressing part is released, the movable clamping part is reset, and the movable clamping part is clamped with the first clamping part again, completing the positioning of the hand-held body and the driving body, and then by installing the cutting body on the shell of the driving body, the angle of the cutting body is adjusted to complete the work of the hand-held saw. It solves the problem that the existing hand-held saw is difficult to operate when the angle of the branch is not ideal. Therefore, the existing hand-held saw has a poor effect on the pruning of branches and reduces the pruning efficiency. The utility model can adjust the angle at which the hand-held saw cuts off the main body according to needs, can reduce the difficulty of operation, has a better pruning effect, and improves the pruning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the hand-held saw with an angle-adjustable rotating head of the utility model;

[0027] Figure 2 for Figure 1 Schematic diagram of the left and right decomposition structure in;

[0028] Figure 3 for Figure 2 Rear view of

[0029] Figure 4 for Figure 2 Schematic diagram of the partial decomposition structure.

[0030] [Description of Reference Numerals]

[0031] 100: rotating head; 200: truncation body; 201: guide plate; 202: protective cover; 1: handheld body; 11: arc groove; 12: first clamping piece; 121: arc plate; 122: clamping groove; 2: driving body; 21: driving shell; 211: first shell; 212: second shell; 213: protective cover; 22: power source; 23: second clamping piece; 231: pressing part; 232: movable clamping part; 2321: clamping block; 3: through groove. Implementation

[0032] In order to better explain the utility model and facilitate understanding, the utility model is described in detail below in conjunction with the accompanying drawings through specific embodiments. The directional terms such as "front" and "rear" mentioned herein are based on the orientation of the drawings. The direction where the truncated body 200 is located relative to the rotating head 100 is defined as "front".

[0033] Reference Figure 1-4 As shown, a hand-held saw provided by an embodiment of the utility model comprises a rotating head 100 with an adjustable angle and a cutting body 200 connected to the rotating head.

[0034] In this embodiment, the power source 22 of the rotating head 100 drives the cutting body 200 through the transmission mechanism 300, so that the chain on the cutting body 200 is cut.

[0035] Furthermore, the transmission mechanism 300 includes a sprocket (not shown), which is disposed in a groove of the second housing 212 and connected to a drive shaft of the power source 22. The purpose of being disposed in the groove is to make the space compact and facilitate the normal operation of the sprocket.

[0036] Furthermore, the cut-off body 200 includes a guide plate 201, a protective cover 202 and a chain (not shown in the figure). The bottom of the guide plate is connected to a spring through a connecting block, and the spring is arranged in an adjustment groove, which is arranged on the second housing, and is opened along the longitudinal direction of the guide plate 201. It should also be noted that the chain on the guide plate 201 is adjustment-free after installation, that is, an adjustment groove is opened on the second housing 212 toward the first housing 211, and a spring is arranged in the adjustment groove, and the spring is connected to the guide plate 201 through a connecting block, that is, the spring has a pre-tightening force, and during installation, the chain can be adaptively adjusted according to the relationship between the chain, the sprocket and the guide plate 201. That is, it can be appropriately adjusted according to the tightness of the chain, and the chain, the guide plate and the sprocket can be quickly installed. The guide plate 201 is locked to the second shell 212 by a locking member. The outer circle of the guide plate 201 is provided with guide grooves. One end of the chain engages with the sprocket and is installed in the guide groove. The protective cover 202 is provided above the guide plate 201 and fixedly installed on the second shell 212. Specifically, the chain can be driven along the installation guide groove of the guide plate 201 by the sprocket, so as to complete the cutting of branches, etc. In addition, the purpose of setting the protective cover 202 is to prevent the chain from accidentally injuring the operator and play a protective role. It should also be noted that the locking member in this embodiment is a locking pin. Specifically, after the position of the guide plate 201 on the second shell 212 is determined, it is locked by the locking pin.

[0037] The angle-adjustable rotating head includes a handheld body 1 and a driving body 2. The handheld body 1 has an open arc groove 11, and a first clamping member 12 is provided in the arc groove 11 to be engaged with the driving body 2. The driving body 2 includes a driving housing 21, a power source 22 fixedly mounted on the driving housing 21, and a second clamping member 23 engaged with the first clamping member 12 and provided on the driving housing 21. A through groove 3 communicating with the inner cavity of the driving housing 21 is provided on one side of the driving housing 21 close to the handheld body 1. The second clamping member 23 includes an integrally formed pressing portion 231 and a movable clamping portion 232. The pressing portion 231 is arranged on a side wall of the driving shell 21. The pressing portion 231 can be pressed and moved relative to the driving shell 21. The movable clamping portion 232 is arranged at the through groove 3, and the pressing portion 231 can drive the movable clamping portion 232 to move in a direction away from the first clamping member 12 so that the movable clamping portion 232 is released from the first clamping member 12. The driving body 2 can rotate relative to the arc groove 11 to adjust the rotation angle of the driving body 2.

[0038] It should be noted that the pressing portion 231 and the movable clamping portion 232 are connected by a connecting piece, so when the pressing portion is pressed, the movable clamping portion 232 also moves. The movement distance of the pressing portion 231 is greater than that of the movable clamping portion 231 so that there is a displacement difference at both ends of the connecting piece, and the connecting piece has a certain elasticity, which is convenient for rapid reset after adjusting the rotation angle.

[0039] Furthermore, the first clamping member 12 includes an arc-shaped plate 121 integrally formed with the handheld body 1, and a plurality of clamping grooves 122 are formed outwardly on the inner side wall of the arc-shaped plate 121. The movable clamping portion 232 has a plurality of clamping blocks 2321 protruding outwardly, and the clamping blocks 2321 can be clamped in the clamping grooves 122 opposite thereto. This matching clamping mode facilitates operation and facilitates the molding of the first clamping member 12 and the second clamping member 23.

[0040] Furthermore, the slot 122 is a trapezoidal slot 122 with a wide opening, which can be easily engaged and connected again after adjustment, and can be reset better.

[0041] Furthermore, the driving housing 21 includes a first housing 211 and a second housing 212. The first housing 211 and the second housing 212 are buckled together to form a main housing with an inner cavity. The first housing 211 and the second housing 212 are both provided with a central hole that passes through the inner cavity along their axis. The power source 22 is installed on one side of the first housing 211, and the driving shaft of the power source 22 extends along its axis toward one side of the second housing 212 and passes through the second housing 212, and a bearing is provided between the driving shaft and the central hole. This facilitates the driving of the power source.

[0042] Furthermore, the driving housing 21 further includes a protective cover 213 hinged on the second housing 212 to protect the power source.

[0043] In this embodiment, the utility model provides an angle-adjustable rotating head and a handheld saw thereof, comprising a handheld body 1 and a driving body 2, which are engaged and clamped by a first clamping member 12 and a second clamping member 23, so that the driving body 2 can rotate along an arc groove 11 relative to the handheld body 1. Specifically, when the angle of the driving body 2 on the rotating head 100 needs to be adjusted, the pressing part 231 of the second clamping part 23 is pressed, and the pressing part 231 is moved away from the first clamping part 12 to drive the movable clamping part 232 to slide relative to the through slot 3, so as to move away from the first clamping part 12, so that the movable clamping part 232 is separated from the clamping slot 122 on the first clamping part 12. At this time, the driving body 2 can rotate. When it rotates to a suitable angle, the pressing part 231 is released, and the movable clamping part 231 is reset, so that the movable clamping part 232 is re-engaged with the first clamping part 12, and the positioning of the handheld body 1 and the driving body 2 is completed. Then, the cutting body 200 is installed on the housing of the driving body 2, so as to adjust the angle of the cutting body 200 to complete the work of the handheld saw. The problem that the existing handheld saw is difficult to operate when the angle of the branch is not ideal is solved. Therefore, the existing handheld saw has a poor effect on the pruning of branches, which reduces the pruning efficiency. The utility model can adjust the angle at which the hand-held saw cuts off the main body according to needs, can reduce the difficulty of operation, has a better pruning effect, and improves the pruning efficiency.

[0044] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0047] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0048] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An angle-adjustable rotating head, characterized in that: It comprises a handheld body (1) and a driving body (2); The handheld body (1) has an open arc groove (11), and a first clamping member (12) is arranged in the arc groove (11) and is matched with the driving body (2). The driving body (2) comprises a driving housing (21), a power source (22) fixedly mounted on the driving housing (21), and a second clamping member (23) clamped to the first clamping member (12) and arranged on the driving housing (21); A through groove (3) communicating with the inner cavity of the drive housing (21) is provided on a side of the drive housing (21) close to the handheld body (1); The second clamping member (23) comprises an integrally formed pressing portion (231) and a movable clamping portion (232); the pressing portion (231) is arranged on a side wall of the drive housing (21); the pressing portion (231) can be pressed and moved relative to the drive housing (21); the movable clamping portion (232) is arranged at the through groove (3); and the pressing portion (231) can drive the movable clamping portion (232) to move in a direction away from the first clamping member (12) so that the movable clamping portion (232) is released from the first clamping member (12); and the drive body (2) can rotate relative to the circular arc groove (11) so as to adjust the rotation angle of the drive body (2).

2. The angle-adjustable rotating head according to claim 1, characterized in that: The first clamping member (12) comprises an arc-shaped plate (121) formed integrally with the handheld body (1), and a plurality of clamping grooves (122) are formed outwardly on the inner side wall of the arc-shaped plate (121); The movable clamping portion (232) has a plurality of clamping blocks (2321) protruding outwards, and the clamping blocks (2321) can be clamped in the clamping slots (122) opposite thereto.

3. The angle-adjustable rotating head as claimed in claim 2, characterized in that: The card slot (122) is a trapezoidal card slot (122) with a wide opening.

4. The angle-adjustable rotating head according to claim 1, characterized in that: The drive housing (21) comprises a first housing (211) and a second housing (212); The first shell (211) and the second shell (212) are engaged with each other to form a main body shell having the inner cavity. A center hole is provided in the center of each of the first shell (211) and the second shell (212) and passes through the inner cavity along its axis. The power source (22) is installed on one side of the first shell (211), and a drive shaft of the power source (22) extends along its axis toward one side of the second shell (212) and passes through the second shell (212), and a bearing is provided between the drive shaft and the center hole.

5. The angle-adjustable rotating head as claimed in claim 4, characterized in that: The drive housing (21) further comprises a protective cover (213) hingedly connected to the second housing (212).

6. A hand-held saw, characterized in that: It comprises the angle-adjustable rotating head (100) as claimed in any one of claims 1 to 5 and a truncated body (200) connected to the rotating head; The power source (22) of the rotating head (100) drives the cutting body (200) through a transmission mechanism (300), so that the chain on the cutting body (200) is cut.

7. The hand-held saw according to claim 6, characterized in that: The transmission mechanism (300) comprises a sprocket, the sprocket is arranged in a groove of the second housing (212), and the sprocket is connected to a drive shaft of the power source (22).

8. The hand-held saw according to claim 7, characterized in that: The cutting body (200) comprises a guide plate (201), a protective cover (202) and the chain; The guide plate (201) is locked to the second shell (212) by a locking member, and guide grooves are provided around the outer ring of the guide plate (201). One end of the chain engages with the sprocket and is installed in the guide groove. The protective cover (202) is arranged above the guide plate (201) and is fixedly installed on the second shell (212).

9. The hand-held saw according to claim 8, characterized in that: The bottom of the guide plate is connected to a spring via a connecting block, and the spring is arranged in an adjustment groove, the adjustment groove is arranged on the second shell, and the adjustment groove is opened along the longitudinal direction of the guide plate (201).

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