CN215902848U

CN215902848U - Reciprocating saw

Info

Publication number: CN215902848U
Application number: CN202121654297.5U
Authority: CN
Inventors: 傅珂珂; 李进
Original assignee: Yongkang Guangyi Technology Co ltd
Current assignee: Zhejiang Qianji Intelligent Technology Co Ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-02-25
Anticipated expiration: 2031-07-19
Also published as: WO2023001081A1

Abstract

The present invention relates to a reciprocating saw comprising: the shell is provided with an installation cavity; the reciprocating mechanism is arranged in the mounting cavity and comprises a reciprocating shaft, a sleeve and a first guide assembly, the sleeve is sleeved on the reciprocating shaft, a guide part is arranged on the periphery of the reciprocating shaft, and the guide part is in guide fit with the sleeve through the first guide assembly; the saw blade assembly is connected with one end of the sleeve; the driving assembly, driving assembly at least some set up in the installation intracavity, and driving assembly and reciprocating shaft drive are connected, and driving assembly is used for ordering about the reciprocating shaft and rotates to order about the sleeve along saw bit subassembly's length direction reciprocating motion. This reciprocating saw, reciprocating shaft and sleeve pass through first direction subassembly direction cooperation, turn into telescopic reciprocating motion with the rotation of reciprocating shaft, are favorable to eliminating the partial pressure, reduce drive assembly's power loss, are favorable to improving transmission efficiency, and then improve reciprocating saw's use quality.

Description

Reciprocating saw

Technical Field

The utility model relates to the technical field of electric tools, in particular to a reciprocating saw.

Background

With the development of science and technology, an electric reciprocating saw technology is developed, and the electric reciprocating saw is an electric tool for sawing by a reciprocating saw blade, is one kind of electric saw, and is used for cutting metal plates, pipes and profiles or cutting bevel notches on steel pipes and can also be used for cutting cables or other non-metal materials. When the reciprocating saw works, the saw blade is continuously accelerated and decelerated to perform reciprocating motion, and large vibration of the reciprocating saw is inevitably generated.

In the traditional technology, the reciprocating saw completes the reciprocating motion of the saw blade through the cam convex rod eccentric mechanism or the eccentric mechanism of the large gear driven by the bevel gear, however, in the working mode of the existing reciprocating saw, the eccentric mechanism always has periodic deviation force in the process of driving the saw blade to move, the reciprocating saw is pressed to move, the power is about large, the loss is large, and the transmission efficiency is low.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a reciprocating saw that is efficient in transmission, reduces power consumption, and improves the quality of use of the reciprocating saw.

A reciprocating saw, comprising: the shell is provided with a mounting cavity; the reciprocating mechanism is arranged in the mounting cavity and comprises a reciprocating shaft, a sleeve and a first guide assembly, the sleeve is sleeved on the reciprocating shaft, a guide part is arranged on the periphery of the reciprocating shaft, and the guide part is in guide fit with the sleeve through the first guide assembly; the saw blade assembly is connected with one end of the sleeve; the driving assembly is at least partially arranged in the mounting cavity and is in driving connection with the reciprocating shaft, and the driving assembly is used for driving the reciprocating shaft to rotate so as to drive the sleeve to reciprocate along the length direction of the saw blade assembly.

In the installation process of the reciprocating saw, firstly, the sleeve is sleeved on the guide shaft, and the guide part is in guide fit with the sleeve through the first guide assembly; then, the reciprocating mechanism is arranged in the mounting cavity; then, the driving component is in driving connection with the reciprocating shaft; finally, a blade assembly is coupled to one end of the sleeve. In the using process, the driving assembly operates to provide power for the reciprocating shaft; the reciprocating shaft is in guiding fit with the sleeve through the first guide assembly, and the sleeve reciprocates along the length direction of the saw blade assembly under the driving of the reciprocating shaft; because the saw blade component is connected with the sleeve, the saw blade component is driven by the sleeve to do reciprocating motion, and therefore sawing action is achieved. Reciprocating saw in this application, reciprocating shaft and sleeve are through the cooperation of first direction subassembly direction, turn into telescopic reciprocating motion with reciprocating shaft's rotation, are favorable to eliminating the partial pressure, reduce drive assembly's power loss, are favorable to improving transmission efficiency, and then improve reciprocating saw's use quality.

In one embodiment, the first guiding assembly comprises a first rolling member and a connecting seat, the first rolling member is connected with the sleeve through the connecting seat, and the first rolling member is in rolling fit with the guiding part.

In one embodiment, the number of the first guide assemblies is at least two, at least two first guide assemblies are arranged on the sleeve, and at least two first guide assemblies are in rolling fit with the guide part.

In one embodiment, the guide portion is a guide groove, the guide groove extends along the circumferential direction of the reciprocating shaft and extends along the axial direction of the reciprocating shaft in a reciprocating manner, and the first rolling member is in rolling fit with the guide groove.

In one embodiment, the drive assembly includes a drive member and a transmission member, and the drive member is in driving connection with the reciprocating shaft through the transmission member.

In one embodiment, the driving assembly further comprises a reduction gearbox, and the transmission part is in transmission connection with the reciprocating shaft through the reduction gearbox.

In one embodiment, the driving member is connected to the housing, and the driving member is engaged with the transmission member through the housing.

In one embodiment, the driving member and the transmission member are disposed in the mounting cavity, and the driving member and the transmission member are sequentially disposed along a length direction of the saw blade assembly.

In one embodiment, the reciprocating mechanism further comprises a second guide assembly, the second guide assembly is arranged on the wall of the installation cavity, the second guide assembly extends along the length direction of the saw blade assembly, and the second guide assembly is in guide fit with the sleeve.

In one embodiment, the second guide assembly comprises a guide rail and a second rolling member, the guide rail is arranged on the wall of the installation cavity, and the sleeve is in guide fit with the guide rail through the second rolling member.

In one embodiment, the saw blade assembly comprises a saw blade body and a connecting piece, wherein the connecting piece is connected with one end of the sleeve, and the saw blade is detachably connected with the connecting piece.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a first schematic view of an embodiment of a reciprocating saw;

FIG. 2 is a second schematic structural view of the reciprocating saw in one embodiment;

FIG. 3 is a third exemplary illustration of a reciprocating saw according to an embodiment;

fig. 4 is a schematic structural diagram of a reciprocating mechanism in an embodiment.

Description of reference numerals:

100. a reciprocating saw; 110. a housing; 111. a mounting cavity; 120. a reciprocating mechanism; 121. a reciprocating shaft; 1211. a guide portion; 122. a sleeve; 123. a first guide assembly; 1231. a first rolling member; 1232. a connecting seat; 124. a second guide assembly; 1241. a guide rail; 1242. a second rolling member; 130. a saw blade assembly; 131. a connecting member; 140. a drive assembly; 141. a drive member; 142. a transmission member; 150. a reduction gearbox.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In one embodiment, referring to fig. 1, 2, 3 and 4, an embodiment of the present invention provides a reciprocating saw 100, including: a housing 110, a reciprocating mechanism 120, a blade assembly 130, and a drive assembly 140. The housing 110 is provided with a mounting cavity 111, the reciprocating mechanism 120 is disposed in the mounting cavity 111, and the reciprocating mechanism 120 includes a reciprocating shaft 121, a sleeve 122 and a first guiding assembly 123. The sleeve 122 is sleeved on the reciprocating shaft 121, a guide portion 1211 is disposed in the circumferential direction of the reciprocating shaft 121, and the guide portion 1211 is in guiding fit with the sleeve 122 through the first guide member 123. The blade assembly 130 is connected to one end of the sleeve 122, at least a portion of the driving assembly 140 is disposed in the mounting cavity 111, the driving assembly 140 is drivingly connected to the reciprocating shaft 121, and the driving assembly 140 is configured to drive the reciprocating shaft 121 to rotate, so as to drive the sleeve 122 to reciprocate along the length direction of the blade assembly 130.

In the installation process of the reciprocating saw 100, firstly, the sleeve 122 is sleeved on the guide shaft, and the guide portion 1211 is guided to be matched with the sleeve 122 through the first guide assembly 123; then, the reciprocating mechanism 120 is installed in the installation cavity 111; then, the driving assembly 140 is drivingly connected with the reciprocating shaft 121; finally, a blade assembly 130 is attached to one end of the sleeve 122. In use, the driving assembly 140 operates to provide power to the reciprocating shaft 121; as the reciprocating shaft 121 is in guiding fit with the sleeve 122 through the first guiding assembly 123, the sleeve 122 is driven by the reciprocating shaft 121 to reciprocate along the length direction of the blade assembly 130; since the blade assembly 130 is connected to the sleeve 122, the blade assembly 130 reciprocates under the driving of the sleeve 122, thereby performing a sawing action. Reciprocating saw 100 in this application, reciprocating shaft 121 and sleeve 122 are through the cooperation of leading of first direction subassembly 123, turn into reciprocating motion of sleeve 122 with reciprocating shaft 121's rotation, are favorable to eliminating the partial pressure, reduce drive assembly 140's power loss, are favorable to improving transmission efficiency, and then improve reciprocating saw 100's use quality.

The driving assembly 140 is connected to the reciprocating shaft 121 in a driving manner, that is, the driving assembly 140 is connected to the reciprocating shaft 121, and the driving assembly 140 serves as power and can drive the reciprocating shaft 121 to rotate.

It should be noted that, the guiding portion 1211 is guided and engaged with the sleeve 122 through the first guiding assembly 123, it is understood that the sleeve 122 is in interference fit with the guiding portion 1211 through the first guiding assembly 123, such as rolling fit, sliding fit, etc., the guiding portion 1211 guides the first guiding assembly 123, so that the first guiding assembly 123 moves along the contour track of the guiding portion 1211, and the sleeve 122 and the first guiding assembly 123 are relatively static, so that the sleeve 122 moves relative to the guiding portion 1211, and the guiding portion 1211 is circumferentially arranged on the guiding shaft, so that the guiding shaft rotates to make the sleeve 122 reciprocate.

In order to further understand and explain the length direction of the blade assembly 130, taking fig. 1 as an example, the length direction of the blade assembly 130 is the straight line S in fig. 1₁In the direction indicated by any of the above arrows.

In one embodiment, referring to fig. 1 and 4, the first guiding element 123 includes a first rolling element 1231 and a connecting seat 1232. The first rolling member 1231 is connected to the sleeve 122 through the connecting seat 1232, and the first rolling member 1231 is in rolling engagement with the guide 1211. Thus, the rolling fit is beneficial to reducing friction, reducing power loss, improving transmission efficiency and further improving the use quality of the reciprocating saw 100.

Specifically, referring to fig. 1 and 4, the first rolling element 1231 is a ball. Connecting seat 1232 is a fixed steel ball support. Thus, the rolling smoothness of the first rolling part 1231 is improved, the power loss is further reduced, the transmission efficiency is improved, and the use quality of the reciprocating saw 100 is further improved.

Or, the first rolling element 1231 and the connecting seat 1232 are an integrated universal ball bearing. So, be favorable to improving the structural stability of first direction subassembly 123, universal ball bearing forms rolling friction with reciprocating shaft 121 under the circumstances of guaranteeing the load, is favorable to reducing power loss, improves transmission efficiency, and then improves reciprocating saw 100's use quality.

Further, referring to fig. 1, fig. 2, fig. 3 and fig. 4, there are at least two first guiding assemblies 123, at least two first guiding assemblies 123 are disposed on the sleeve 122, and at least two first guiding assemblies 123 are in rolling fit with the guiding portion 1211. Specifically, the two first guide members 123 are symmetrically disposed along the axis of the reciprocating shaft 121. So, on the one hand, be favorable to improving the guide effect of first direction subassembly 123, on the other hand, two first direction subassemblies 123 are favorable to improving the supporting role of first direction subassembly 123 to reciprocating shaft 121, avoid reciprocating shaft 121 swing, further reduce power loss, improve transmission efficiency, and then improve reciprocating saw 100's use quality.

Alternatively, the guide 1211 may be a guide rail 1241, a guide slot, or other guide structure.

Specifically, referring to fig. 1, 2, 3 and 4, the guide portion 1211 is a guide groove, the guide groove extends along the circumferential direction of the reciprocating shaft 121 and extends back and forth along the axial direction of the reciprocating shaft 121, and the first rolling element 1231 is in rolling fit with the guide groove. Thus, the first rolling member 1231 rolls along the profile of the guide groove to drive the sleeve 122 to reciprocate, which is beneficial to improving the structural stability of the reciprocating mechanism 120 and further improving the reliability of the reciprocating saw 100.

In one embodiment, referring to fig. 1, 2, 3 and 4, the driving assembly 140 includes a driving member 141 and a transmission member 142, and the driving member 141 is drivingly connected to the reciprocating shaft 121 through the transmission member 142. So, driving piece 141 drives the driving member 142 to move, thereby driving the reciprocating shaft 121 to rotate, which is beneficial to improving the driving effect of the driving piece 141 and the service life of the driving piece 141, and simultaneously is beneficial to improving the structural stability of the reciprocating saw 100, thereby improving the use quality of the reciprocating saw 100.

Alternatively, the drive 141 may be an electric motor, a hydraulic motor, a pneumatic motor, or other drive means.

Specifically, referring to fig. 1, fig. 2, fig. 3 and fig. 4, the driving member 141 is a motor. Thus, the portability of the driving member 141 is improved, and the reciprocating saw 100 can be charged and carried conveniently by the battery driving, thereby improving the reliability of the reciprocating saw 100. The present embodiment provides only a specific implementation of the driving member 141, but not limited thereto.

Alternatively, the transmission means 142 may be a gear transmission, a belt transmission, a chain transmission, a link transmission or other transmission means.

Specifically, referring to fig. 1 and 2, the transmission member 142 is a gear. So, be favorable to guaranteeing transmission efficiency, improve reciprocating shaft 121's motion stability, improve reciprocating saw 100 inner structure's compactedness simultaneously, and then reduce reciprocating saw 100's volume and quality, conveniently carry, improve reciprocating saw 100's use and experience. The present embodiment provides only one specific implementation of the transmission member 142, but not limited thereto.

In one embodiment, referring to fig. 1 and 2, the driving assembly 140 further includes a reduction box 150, and the transmission member 142 is in transmission connection with the reciprocating shaft 121 through the reduction box 150. Therefore, the rotating speed of the reciprocating shaft 121 can be adjusted, the moving speed of the saw blade can be adjusted, the applicable scenes of the reciprocating saw 100 can be enriched, and the use experience of the reciprocating saw 100 can be improved.

In one embodiment, referring to fig. 2, the driving member 141 is connected to the housing 110, and the driving member 141 penetrates the housing 110 to be in transmission fit with the transmission member 142. So, driving piece 141 installs outside reciprocating saw 100's casing 110, and complete machine length is shorter, makes things convenient for both hands to grip the operation, and is favorable to reciprocating saw 100's dismouting convenience, and the transportation of being convenient for can realize driving piece 141's quick replacement simultaneously, and then improves reciprocating saw 100's use and experience.

In one embodiment, referring to fig. 1, the driving element 141 and the transmission element 142 are disposed in the mounting cavity 111, and the driving element 141 and the transmission element 142 are sequentially disposed along the length direction of the blade assembly 130. Thus, the driving member 141, the reduction gearbox 150 and the reciprocating mechanism 120 are arranged in parallel, the structure is simple, the structural stability of the reciprocating saw 100 is improved, the reciprocating saw is suitable for being held by a single hand, and the reciprocating saw is economical and practical and is beneficial to reducing the production cost.

In one embodiment, referring to fig. 3, the reciprocating mechanism 120 further includes a second guiding component 124, the second guiding component 124 is disposed on the wall of the mounting cavity 111, the second guiding component 124 extends along the length direction of the blade assembly 130, and the second guiding component 124 is in guiding engagement with the sleeve 122. Thus, the second guiding assembly 124 is beneficial to guiding the reciprocating motion of the sleeve 122, so as to avoid the reciprocating motion of the sleeve 122 from generating a large degree of track deviation, which is beneficial to improving the transmission efficiency of the transmission mechanism, and further improving the motion stability of the saw blade assembly 130.

Specifically, referring to fig. 3, the second guiding assembly 124 includes a guiding rail 1241 and a second rolling element 1242, the guiding rail 1241 is disposed on the cavity wall of the mounting cavity 111, and the sleeve 122 is guided and matched with the guiding rail 1241 through the second rolling element 1242.

Further, the second rolling member 1242 is a steel ball. Thus, the rolling mode is beneficial to reducing friction, reducing power loss, improving the transmission efficiency of the reciprocating mechanism 120 and the driving assembly 140, reducing power loss and improving the use reliability of the saw blade assembly 130.

Further, referring to fig. 3, the number of the second guiding elements 124 is at least two, and at least two of the second guiding elements 124 are disposed on opposite sides of the symmetry axis of the sleeve 122. Therefore, the guiding effect and the supporting effect of the second guiding assembly 124 on the reciprocating motion of the sleeve 122 are further improved, the reciprocating motion of the sleeve 122 is prevented from generating large-degree track deviation, the transmission efficiency of the reciprocating mechanism 120 is improved, and the motion stability of the saw blade assembly 130 is further improved.

In one embodiment, referring to fig. 1, 2 and 3, the blade assembly 130 includes a blade body and a connecting member 131, the connecting member 131 is connected to one end of the sleeve 122, and the blade is detachably connected to the connecting member 131. So, be favorable to improving the stability of being connected of saw bit body and sleeve 122, make things convenient for the dismantlement of saw bit body simultaneously, and then improve the whole quality and the use experience of reciprocating saw 100.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A reciprocating saw, characterized in that said reciprocating saw comprises:

the shell is provided with a mounting cavity;

the reciprocating mechanism is arranged in the mounting cavity and comprises a reciprocating shaft, a sleeve and a first guide assembly, the sleeve is sleeved on the reciprocating shaft, a guide part is arranged on the periphery of the reciprocating shaft, and the guide part is in guide fit with the sleeve through the first guide assembly;

the saw blade assembly is connected with one end of the sleeve;

the driving assembly is at least partially arranged in the mounting cavity and is in driving connection with the reciprocating shaft, and the driving assembly is used for driving the reciprocating shaft to rotate so as to drive the sleeve to reciprocate along the length direction of the saw blade assembly.

2. The reciprocating saw as defined in claim 1, wherein said first guide assembly includes a first roller and a coupling seat, said first roller being coupled to said sleeve through said coupling seat, said first roller being in rolling engagement with said guide portion.

3. The reciprocating saw as defined in claim 2, wherein said first guide assemblies are at least two, at least two of said first guide assemblies are each disposed on said sleeve, and at least two of said first guide assemblies are each in rolling engagement with said guide portion.

4. The reciprocating saw as defined in claim 3, wherein said guide portion is a guide groove provided along a circumferential direction of said reciprocating shaft and reciprocally extending along an axial direction of said reciprocating shaft, said first rolling member being in rolling engagement with said guide groove.

5. The reciprocating saw as defined in claim 3, wherein said drive assembly includes a drive member and a transmission member, said drive member being drivingly connected to said reciprocating shaft through said transmission member.

6. The reciprocating saw as defined in claim 5, wherein said drive assembly further includes a reduction gearbox, said drive member being drivingly connected to said reciprocating shaft through said reduction gearbox.

7. The reciprocating saw as defined in claim 5, wherein said drive member is connected to said housing and said drive member is in driving engagement with said transmission member through said housing; or the like, or, alternatively,

the driving piece with the driving medium all set up in the installation intracavity, just the driving piece with the driving medium is followed the length direction of saw bit subassembly sets gradually.

8. The reciprocating saw as defined in any one of claims 1-7, wherein said reciprocating mechanism further includes a second guide assembly, said second guide assembly being disposed on a wall of said mounting cavity, said second guide assembly extending along a length of said blade assembly, said second guide assembly being in guiding engagement with said sleeve.

9. The reciprocating saw as defined in claim 8, wherein said second guide assembly includes a guide track and a second roller, said guide track being disposed on a wall of said mounting cavity, said sleeve being in guiding engagement with said guide track via said second roller.

10. The reciprocating saw as defined in claim 8, wherein said blade assembly includes a blade body and a connector member, said connector member being connected to one end of said sleeve, said blade being removably connected to said connector member.