Output structure of reciprocating saw and reciprocating saw

Abstract

The utility model provides an output structure of a reciprocating saw, which comprises an outer shell and a reciprocating rod, the reciprocating rod can do reciprocating motion in the outer shell in the front-back direction, the front end of the reciprocating rod is connected with a saw blade, the output structure of the reciprocating saw further comprises a supporting body, and the supporting body is arranged in the outer shell and does not interfere with the motion of the reciprocating rod. The rotating body is rotatably arranged in the supporting body; wherein the rotating body is located on the motion path of the reciprocating rod and makes contact with the reciprocating rod, the reciprocating rod can drive the rotating body to rotate in the motion process, at least one dust outlet channel is formed in the lower portion of the front end of the shell, and the dust outlet channel penetrates through the shell and is communicated with the outside. Through the rolling friction mode provided by the supporting body and the rotating body, the friction temperature can be reduced, the operation experience can be improved, and meanwhile, the abrasion of a key part reciprocating lever and corresponding parts can be reduced; meanwhile, a chip removal effect can be provided through the dust outlet channel, and the service life of the whole machine is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to an output structure of a reciprocating saw and a corresponding reciprocating saw. Background Art

[0002] A reciprocating saw is a tool for cutting wood, metal, etc., which relies on the reciprocating motion of a reciprocating rod to drive a saw blade to perform cutting motion. Its structure is disclosed in CN217965083U, which discloses a reciprocating saw output assembly and a reciprocating saw, and in CN206356659U, which discloses a reciprocating saw chuck device and a reciprocating saw. During use, the reciprocating saw structure has sliding friction between its reciprocating rod structure and other components, resulting in high temperature and poor user experience. It is also easy to increase the gap between the reciprocating rod and the corresponding components, and iron filings are easy to enter the gear box, causing damage to the entire machine and affecting its service life. In addition, a large amount of wood chips and iron filings are easy to accumulate in the area between the chuck of the reciprocating rod and the gear transmission part. Especially when the wood is relatively wet, the accumulated dust is repeatedly impacted by the chuck to become solid. Such impact will generate noise and there is a risk of damage to the entire machine, affecting its use. Utility Model Content

[0003] The utility model aims to avoid the deficiencies in the prior art and provides an output structure of a reciprocating saw and a corresponding reciprocating saw which can improve the service life and the use experience.

[0004] The utility model solves the technical problem by adopting the following technical solution: an output structure of a reciprocating saw, comprising a housing and a reciprocating rod, wherein the reciprocating rod can make a reciprocating motion in a front-to-back direction in the housing and its front end is connected to a saw blade, and further comprising:

[0005] a support body, the support body being disposed in the housing and not interfering with the movement of the reciprocating rod;

[0006] A rotating body, the rotating body is rotatably arranged in the supporting body;

[0007] Wherein, the rotating body is located on the movement path of the reciprocating rod and is in contact with the reciprocating rod, and the reciprocating rod can drive the rotating body to rotate during the movement.

[0008] In several embodiments, a positioning body is further included, and the positioning body is arranged at the tail end of the reciprocating rod. The reciprocating rod can only perform horizontal reciprocating motion in the positioning body.

[0009] In several embodiments, a backing plate is further included, which is disposed in the outer shell and below the rear end of the reciprocating rod.

[0010] In several embodiments, the positioning body includes a base plate, a groove is provided below the base plate, and the base plate is arranged on the reciprocating rod through the groove cover.

[0011] In several embodiments, a clamping assembly is provided at the front end of the reciprocating rod, and the clamping assembly is used to clamp the saw blade. The outer sleeve of the clamping assembly is provided with a ring sleeve, and a protrusion is protruded from the ring sleeve. The ring sleeve is used to drive the clamping assembly to rotate and clamp or release the saw blade.

[0012] In several embodiments, a linkage plate 1 is disposed on the clamping assembly, and a linkage plate 2 is disposed in the annular sleeve. The linkage plate 2 can rotate with the annular sleeve until it abuts against the linkage plate 1 and drives the clamping assembly to rotate.

[0013] In several embodiments, at least one dust outlet channel is provided below the clamping assembly, and the dust outlet channel passes through the housing and is in communication with the outside.

[0014] And, a reciprocating saw includes a driving motor and a gear transmission part, wherein the driving motor is used to drive the gear transmission part to move, and also includes an output structure of the above-mentioned reciprocating saw, wherein the gear transmission part is arranged in a housing, and the gear transmission part is connected to a reciprocating rod and is used to drive the movement of the reciprocating rod.

[0015] In several embodiments, the gear transmission part is arranged between the positioning body and the supporting body.

[0016] In several embodiments, a connecting ring is provided on the reciprocating rod, and the gear transmission part is drivingly connected to the connecting ring.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model can reduce the friction temperature and improve the operating experience by the rolling friction mode provided by the support body and the rotating body, while reducing the wear of the key parts reciprocating rod and corresponding components and increasing the service life of the whole machine.

[0019] 2. The utility model provides a chip removal effect, which can reduce impact vibration noise, avoid impact damage, and prevent dust from entering the gear box to cause gear wear and jamming, thereby extending the service life.

[0020] 3. The utility model can easily turn the chuck position through the ring sleeve structure, so as to facilitate the clamping, loosening and separation of the saw blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are for illustrative purposes only of selected embodiments and do not represent all possible implementations, and should not be considered to limit the scope of the present invention.

[0022] Figure 1 A partial cross-sectional structure of a reciprocating saw in one embodiment is schematically shown;

[0023] Figure 2 Schematically shows Figure 1 Local explosion structure;

[0024] Figure 3 Schematically shows Figure 1 Partially enlarged structure;

[0025] Figure 4 Schematically shows Figure 1 The local enlarged structure. DETAILED DESCRIPTION

[0026] Below, the embodiments of the present invention are described in detail. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the present invention for protection, but merely represents selected embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0028] The terms used herein are intended to explain the embodiments and are not intended to limit and / or define the present invention.

[0029] like Figure 1-Figure 2 As shown, the reciprocating saw in this embodiment is mainly composed of a housing 11, a driving motor 70, a gear transmission part 80 and an output structure 10 of the reciprocating saw. The driving motor 70 drives the gear transmission part 80 to move, the gear transmission part 10 drives the output structure 10 to move, and then the output structure 10 drives the saw blade 20 to move, thereby realizing the reciprocating cutting action of the workpiece 100. The gear transmission structure therein is a conventional structure in the field, as disclosed in the reciprocating saw output component and the reciprocating saw in the background technology, and is not further limited here.

[0030] The output structure 10 mainly includes a reciprocating rod 12 arranged in a housing 11 , a supporting body 13 , a rotating body 14 , a positioning body 30 , a backing plate 40 , a clamping assembly 50 and a ring sleeve 60 .

[0031] Specifically, the reciprocating rod 12 can make reciprocating motion in the front-to-back direction in the housing 11 and its front end is connected to the saw blade 20. Consistent with what is mentioned in the background technology, a connecting ring 121 is conventionally provided near the tail end of the reciprocating rod 12, and the gear transmission part 80 is transmission-connected with the connecting ring 121, thereby realizing the reciprocating motion of the reciprocating rod 12 in the horizontal front-to-back direction in the housing 11.

[0032] Among them, the support body 13 is arranged in the shell 11 and does not interfere with the movement of the reciprocating rod 12. The support body 13 is generally U-shaped, and ears are protruding at both ends. Holes are opened on the ears. A first accommodating groove 113 is arranged inside the shell 11. The reciprocating rod 12 passes through the first accommodating groove 113. The edge position of the first accommodating groove 113 is connected to the support body 13, specifically, the first screw 16 is passed through the ear and screwed into the shell 11 for fixation. The support body 13 is located above the reciprocating rod 12 and is mounted on the upper end of the reciprocating rod 12 with a gap.

[0033] Furthermore, a support plate 17 is laid in the first receiving groove 113 , and the support plate 17 is arranged to fit the lower end of the reciprocating rod 12 .

[0034] In addition, the rotating body 14 is rotatably arranged in the support body 13 through the rotating shaft 15. The rotating body 14 adopts a bearing structure here, and its rolling direction is consistent with the movement direction of the reciprocating rod 12. The rotating body 14 is located on the movement path of the reciprocating rod 12 and contacts the reciprocating rod 12. The reciprocating rod 12 can drive the rotating body 14 to rotate during the movement to achieve rolling friction.

[0035] At the same time, the positioning body 30 is arranged at the tail end of the reciprocating rod 12, and a second accommodating groove 111 is arranged at the corresponding position of the outer shell 11, and the edge position of the second accommodating groove 111 is connected to the positioning body 30. Here, the positioning body 30 includes a base plate 31, and a groove 32 is arranged below the base plate 31. The base plate 31 is covered on the reciprocating rod 12 through the groove 32. Ears are also protruding on both sides of the base plate 31. The ears are inserted into the second screws 33 and fixedly connected with the outer shell 11. The pad 40 is arranged in the second accommodating groove 111 and is located below the tail end of the reciprocating rod 12, so that the reciprocating rod 12 can only perform horizontal reciprocating motion in the positioning body 30.

[0036] Among them, a clamping assembly 50 is provided at the front end of the reciprocating rod 12, and the clamping assembly 50 is used to clamp the saw blade 20. The clamping assembly 50 is a conventional chuck structure, such as the reciprocating saw chuck device disclosed in the background technology, and no further limitation is made here. A ring sleeve 60 is provided on the outer sleeve of the clamping assembly 50, and a protrusion 61 is protruding on the ring sleeve 60. The ring sleeve 60 is used to drive the clamping assembly 50 to rotate and clamp or release the saw blade 20.

[0037] At the same time, a linkage plate 1 51 is provided on the clamping assembly 50, and a linkage plate 2 62 is provided in the ring sleeve 60. The linkage plate 2 62 can rotate with the ring sleeve 60 to abut against the linkage plate 1 51, and drive the clamping assembly (50) to rotate. Therefore, the clamping assembly 50, i.e. the chuck, can be driven to rotate by rotating the ring sleeve 60.

[0038] Combination Figure 3 As shown, when the utility model is in use, the saw blade 20 is subjected to an upward force F1 from the workpiece 100, whereby the rotating body 14 is subjected to an upward thrust F2 from the reciprocating rod 12, and maintains a rolling friction fit at the position point A1. At the same time, the pad 40 is subjected to a downward pressure F3 from the reciprocating rod 12, and support is provided by the pad 40.

[0039] Combination Figure 4 As shown, at the same time, considering the chip removal problem, during operation, debris will enter from the outside along the dust inlet channel J1 and accumulate at the A2 position, which is generally located below the chuck position. In order to provide a chip removal function, a plurality of dust outlet channels are provided below the clamping assembly 50 corresponding to the A2 position. The dust outlet channels pass through the outer shell 11 and are connected to the outside to discharge the debris at the A2 position.

[0040] Specifically, three dust outlet channels are opened in the shell 11, including a first channel P1, a second channel P2, and a third channel P3. The second channel P2 radially penetrates the shell 11 downward, the first channel P1 extends to the left and is located on the left side of the second channel P2. The end of the first channel P1 flows back to the lower outlet of the second channel P2, that is, the first channel P1 and the second channel P2 can discharge chips from the same outlet; at the same time, the third channel P3 extends rightward from the middle position of the second channel P2 to the right end opening of the shell 11, that is, the dust in the first channel P1 and the second channel P2 can also be discharged from the third channel P3.

[0041] The examples shown in the utility model, the embodiments and special forms of the representation have been shown and described in detail in the drawings and the foregoing description, and should also be considered to be illustrative rather than restrictive. The description of special features in one embodiment does not mean that those special features are necessarily limited to that embodiment. The features of one embodiment can be used in combination with the features of other embodiments, which can be understood by those of ordinary skill in the art, whether or not explicitly described in this way. Exemplary embodiments have been shown and described, and all changes and improvements fall into the spirit of the utility model and are expected to be protected.

Claims

1. An output structure of a reciprocating saw, comprising a housing (11) and a reciprocating rod (12), wherein the reciprocating rod (12) can make a reciprocating motion in a front-to-back direction in the housing (11) and a front end of the reciprocating rod (12) is connected to a saw blade (20), characterized in that: Also includes: a support body (13), the support body (13) being arranged in the housing (11) and not interfering with the movement of the reciprocating rod (12); a rotating body (14), the rotating body (14) being rotatably disposed in the supporting body (13); The rotating body (14) is located on the movement path of the reciprocating rod (12) and is in contact with the reciprocating rod (12). The reciprocating rod (12) can drive the rotating body (14) to rotate during the movement.

2. The output structure of a reciprocating saw according to claim 1, characterized in that: It also includes a positioning body (30), which is arranged at the tail end of the reciprocating rod (12). The reciprocating rod (12) can only perform reciprocating motion in the horizontal direction within the positioning body (30).

3. The output structure of a reciprocating saw according to claim 2, characterized in that: It also includes a backing plate (40), which is arranged in the housing (11) and is located below the tail end of the reciprocating rod (12).

4. The output structure of a reciprocating saw according to claim 2, characterized in that: The positioning body (30) comprises a base plate (31), a groove (32) is arranged below the base plate (31), and the base plate (31) is covered on the reciprocating rod (12) through the groove (32).

5. The output structure of a reciprocating saw according to claim 1, characterized in that: A clamping assembly (50) is provided at the front end of the reciprocating rod (12). The clamping assembly (50) is used to clamp the saw blade (20). The outer cover of the clamping assembly (50) is provided with a ring sleeve (60). A protrusion (61) is protruded from the ring sleeve (60). The ring sleeve (60) is used to drive the clamping assembly (50) to rotate and clamp or release the saw blade (20).

6. The output structure of a reciprocating saw according to claim 5, characterized in that: The clamping assembly (50) is provided with a linkage plate 1 (51), and the ring sleeve (60) is provided with a linkage plate 2 (62). The linkage plate 2 (62) can rotate with the ring sleeve (60) until it abuts against the linkage plate 1 (51) and drives the clamping assembly (50) to rotate.

7. The output structure of a reciprocating saw according to claim 1, characterized in that: At least one dust outlet passage is provided at the lower front end of the housing (11), and the dust outlet passage passes through the housing (11) and is in communication with the outside.

8. A reciprocating saw, comprising a driving motor (70) and a gear transmission part (80), wherein the driving motor (70) is used to drive the gear transmission part (80) to move, and wherein: It also includes the output structure of the reciprocating saw according to any one of claims 1 to 7, wherein the gear transmission part (80) is arranged in the housing (11), and the gear transmission part (80) is connected to the reciprocating rod (12) for driving the movement of the reciprocating rod (12).

9. A reciprocating saw according to claim 8, characterized in that: The gear transmission part (80) is arranged between the positioning body (30) and the supporting body (13).

10. A reciprocating saw according to claim 9, characterized in that: The reciprocating rod (12) is provided with a connecting ring (121), and the gear transmission part (80) is drivingly connected to the connecting ring (121).

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