Reciprocating saw with saw blade quick replacement structure

Abstract

The utility model relates to a reciprocating saw with a saw blade quick replacement structure, which belongs to the technical field of reciprocating saws and comprises a reciprocating saw, a saw blade connector is arranged at one end of the reciprocating saw, a saw blade is arranged on one side of the saw blade connector, and a locking structure and a control structure are arranged on the saw blade connector. The locking structure comprises two L-shaped plates which are installed in the saw blade connector in a sliding mode. According to the reciprocating saw with the saw blade quick replacement structure, by arranging a locking structure and a control structure, a saw blade is inserted into a saw blade connector, then a control ring is rotated, an outer ring is controlled to move towards the right side, accordingly, a trapezoidal plate is extruded through an abutting piece, two L-shaped plates are controlled to move towards the opposite sides, and therefore the locking piece is pushed to the saw blade; and the saw blade is locked by utilizing the two locking pieces, so that the saw blade is quickly assembled, a worker can conveniently and quickly replace the saw blade, the time for replacing the saw blade is shortened, and the labor intensity of replacing the saw blade by the worker is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reciprocating saws, in particular to a reciprocating saw with a saw blade quick replacement structure. Background Art

[0002] A reciprocating saw is a type of power tool that uses a reciprocating saw blade for sawing. It is a type of electric saw. A reciprocating saw is generally composed of a casing, a motor, a transmission mechanism, a knife lifting mechanism, a saw blade, a switch, a saw blade connector structure, etc. It can be used to saw metal plates, pipes, profiles, or cut bevels on steel pipes. It can also cut cables or other non-metallic materials. The principle is to use a motor as a driving source and control the saw blade connector through mechanical transmission to drive the saw blade to move back and forth, thereby replacing manual pulling and greatly reducing the workload of the staff.

[0003] In the current existing technology, the reciprocating saw is connected to the saw blade through a saw blade connector, and a fastening bolt needs to be used to penetrate the saw blade connector and the saw blade, and is not locked with a nut. Therefore, when replacing the saw blade, the nut needs to be loosened and the fastening bolt needs to be pulled out, which makes replacing the saw blade more troublesome and increases the labor intensity of the staff. Therefore, a reciprocating saw with a saw blade quick replacement structure is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a reciprocating saw with a saw blade quick replacement structure, which has the advantage of quick replacement of saw blades and solves the problem that the reciprocating saw is connected to the saw blade through a saw blade connector, and a fastening bolt needs to be passed through the saw blade connector and the saw blade, and is not locked with a nut. Therefore, when replacing the saw blade, the nut needs to be loosened and the fastening bolt needs to be pulled out, which makes replacing the saw blade more troublesome, thereby increasing the labor intensity of the staff.

[0005] To achieve the above object, the utility model provides the following technical solutions: a reciprocating saw with a saw blade quick replacement structure, comprising a reciprocating saw, one end of the reciprocating saw is provided with a saw blade connector, one side of the saw blade connector is provided with a saw blade, and the saw blade connector is provided with a locking structure and a control structure;

[0006] The locking structure includes two L-shaped plates slidably installed inside the saw blade connector, a guide assembly for limiting the moving trajectory of the L-shaped plates is arranged inside the saw blade connector, locking parts for locking the saw blades are fixedly installed on opposite sides of the two L-shaped plates, trapezoidal plates are fixedly installed on opposite sides of the two L-shaped plates, an outer ring is slidably installed on the outer surface of the saw blade connector, and an abutment part for squeezing the trapezoidal plate is arranged on the inner wall of the outer ring.

[0007] Furthermore, the control structure includes a control ring, which is threadedly connected to the outer ring. The control ring is rotatably mounted on the outer surface of the saw blade connector. The outer surface of the saw blade connector is provided with a support assembly for supporting the rotation of the control ring. The outer surface of the control ring is fixedly connected with a rubber strip.

[0008] Furthermore, the saw blade connector is installed on the right side of the reciprocating saw, one end of the saw blade passes through and extends into the interior of the saw blade connector, a control handle is fixedly connected to the left side of the reciprocating saw, and a base is fixedly installed at the bottom of the control handle.

[0009] Furthermore, the guide assembly includes two guide rods and two guide grooves. The guide rods are fixedly installed between the front and rear side walls of the inner cavity of the saw blade connecting head. A limiting groove is opened inside the L-shaped plate. The inner wall of the guide groove is slidably connected to the outer surface of the guide rod.

[0010] Furthermore, the two locking members each include a connecting plate and a locking block, the locking block is fixedly mounted on the bottom of the connecting plate, and the connecting plate is fixedly mounted on the bottom of the L-shaped plate.

[0011] Furthermore, the abutment member includes two abutment plates, which are respectively fixedly mounted on the inner top wall and the inner bottom wall of the control ring, and limit strips are fixedly mounted on the two abutment plates, and the limit strips are slidably mounted inside the saw blade connector.

[0012] Furthermore, the support assembly includes two bearings, both of which are fixedly mounted on the outer surface of the saw blade connecting head, and the outer peripheral walls of the two bearings are fixedly connected to the inner wall of the control ring.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The reciprocating saw with a quick saw blade replacement structure is provided with a locking structure and a control structure. The saw blade is inserted into the interior of the saw blade connector, and then the control ring is rotated to control the outer ring to move to the right, so that the abutment member squeezes the trapezoidal plate to control the two L-shaped plates to move to the opposite side, so as to push the locking member toward the saw blade, and the saw blade is locked by the two locking members, so as to achieve rapid assembly of the saw blade, thereby facilitating the staff to quickly replace the saw blade, shortening the time required for replacing the saw blade, and reducing the labor intensity of the staff in replacing the saw blade, thereby enhancing the practicality of the reciprocating saw with a quick saw blade replacement structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model Figure 1 A in the enlarged view;

[0017] Figure 3 It is a three-dimensional schematic diagram of the structural locking member and the trapezoidal plate of the utility model.

[0018] In the figure: 1. reciprocating saw; 2. saw blade connector; 3. saw blade; 4. control handle; 5. base; 61. L-shaped plate; 62. guide assembly; 63. locking piece; 64. trapezoidal plate; 65. outer ring; 66. abutment piece; 67. control ring; 68. support assembly; 69. rubber strip. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 In this embodiment, a reciprocating saw with a saw blade quick-change structure includes a reciprocating saw 1, a saw blade connector 2 is provided at one end of the reciprocating saw 1, a saw blade 3 is provided on one side of the saw blade connector 2, a locking structure and a control structure are provided on the saw blade connector 2, the saw blade connector 2 is installed on the right side of the reciprocating saw 1, one end of the saw blade 3 passes through and extends to the inside of the saw blade connector 2, a control handle 4 is fixedly connected to the left side of the reciprocating saw 1, and a base 5 is fixedly installed at the bottom of the control handle 4.

[0021] In the implementation of this example, the locking structure includes two L-shaped plates 61 slidably installed inside the saw blade connector 2. The interior of the saw blade connector 2 is provided with a guide assembly 62 for limiting the movement trajectory of the L-shaped plate 61. The guide assembly 62 includes two guide rods and two guide grooves. The guide rods are fixedly installed between the front and rear side walls of the inner cavity of the saw blade connector 2. A limiting groove is provided inside the L-shaped plate 61. The inner wall of the guide groove is slidably connected to the outer surface of the guide rod, so that the L-shaped plate 61 can only move up and down on the outer surface of the guide rod. The two L-shaped plates 61 are mutually connected. A locking piece 63 for locking the saw blade 3 is fixedly installed on one side, which is convenient for locking the saw blade 3. The two locking pieces 63 include a connecting plate and a locking block. The locking block is fixedly installed on the bottom of the connecting plate, and the connecting plate is fixedly installed on the bottom of the L-shaped plate 61, which is convenient for using the locking block to clamp the position of the saw blade 3. Trapezoidal plates 64 are fixedly installed on the opposite sides of the two L-shaped plates 61. An outer ring 65 is slidably installed on the outer surface of the saw blade connector 2. The inner wall of the outer ring 65 is provided with an abutment 66 for squeezing the trapezoidal plate 64, which is convenient for squeezing the trapezoidal plate 64.

[0022] Among them, the abutment member 66 includes two abutment plates, which are respectively fixedly installed on the inner top wall and the inner bottom wall of the control ring 67. Limiting strips are fixedly installed on the two abutment plates, and the limiting strips are slidably installed inside the saw blade connecting head 2, so as to facilitate the use of the movable abutment plate to squeeze the trapezoidal plate 64, thereby controlling the movement of the L-shaped plate 61 and the locking member 63.

[0023] By adopting the above technical solution, it is possible to control the outer ring 65 to move to the right side, and then control the two abutment plates in the abutment member 66 to move synchronously to the right side, so that the two moving abutment plates are used to squeeze the two trapezoidal plates 64, and then the two trapezoidal plates 64 respectively drive the two L-shaped plates 61 to move to the opposite side on the outer surface of the guide rod in the guide assembly 62, thereby driving the two locking members 63 to move synchronously until the locking blocks in the two locking members 63 jam the saw blade 3, thereby locking the saw blade 3 and completing the replacement of the saw blade 3.

[0024] In the present embodiment, the control structure includes a control ring 67, which is threadedly connected to the outer ring 65, so that rotating the control ring 67 can control the outer ring 65 to move left and right. The control ring 67 is rotatably installed on the outer surface of the saw blade connector 2. The outer surface of the saw blade connector 2 is provided with a support assembly 68 for supporting the rotation of the control ring 67. The support assembly 68 includes two bearings, and the two bearings are fixedly installed on the outer surface of the saw blade connector 2. The outer peripheral walls of the two bearings are fixedly connected to the inner wall of the control ring 67 to facilitate the support of the rotation of the control ring 67. The outer surface of the control ring 67 is fixedly connected to a rubber strip 69 to increase the friction when the control ring 67 is rotated.

[0025] By adopting the above technical solution, it is possible to insert the new saw blade 3 into the interior of the saw blade connector 2, and rotate the control ring 67 on the bearing in the support assembly 68 through the rubber strip 69, so that the outer ring 65 connected to the inner thread of the control ring 67 moves to the right.

[0026] The working principle of the above embodiment is:

[0027] The reciprocating saw with a saw blade quick-change structure, when replacing the saw blade 3, the new saw blade 3 is inserted into the interior of the saw blade connector 2, and the control ring 67 on the bearing in the support assembly 68 is rotated by the rubber strip 69, so that the outer ring 65 connected to the inner thread of the control ring 67 moves to the right, thereby controlling the two abutment plates in the abutment member 66 to move synchronously to the right, so that the two moving abutment plates are used to squeeze the two trapezoidal plates 64, and then the two trapezoidal plates 64 respectively drive the two L-shaped plates 61 to move to the opposite side of the outer surface of the guide rod in the guide assembly 62, thereby driving the two locking members 63 to move synchronously, until the locking blocks in the two locking members 63 clamp the saw blade 3, thereby locking the saw blade 3 and completing the replacement of the saw blade 3.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reciprocating saw with a saw blade quick-change structure, comprising a reciprocating saw (1), characterized in that: A saw blade connector (2) is provided at one end of the reciprocating saw (1), a saw blade (3) is provided on one side of the saw blade connector (2), and a locking structure and a control structure are provided on the saw blade connector (2); The locking structure comprises two L-shaped plates (61) slidably mounted inside the saw blade connector (2); a guide assembly (62) for limiting the moving trajectory of the L-shaped plates (61) is arranged inside the saw blade connector (2); locking members (63) for locking the saw blade (3) are fixedly mounted on opposite sides of the two L-shaped plates (61); trapezoidal plates (64) are fixedly mounted on opposite sides of the two L-shaped plates (61); an outer ring (65) is slidably mounted on the outer surface of the saw blade connector (2); and an abutment member (66) for squeezing the trapezoidal plate (64) is arranged on the inner wall of the outer ring (65).

2. A reciprocating saw with a saw blade quick-change structure according to claim 1, characterized in that: The control structure comprises a control ring (67), the control ring (67) being threadedly connected to the outer ring (65), the control ring (67) being rotatably mounted on the outer surface of the saw blade connecting head (2), the outer surface of the saw blade connecting head (2) being provided with a supporting assembly (68) for supporting the rotation of the control ring (67), and the outer surface of the control ring (67) being fixedly connected with a rubber strip (69).

3. A reciprocating saw with a saw blade quick-change structure according to claim 1, characterized in that: The saw blade connector (2) is installed on the right side of the reciprocating saw (1), one end of the saw blade (3) passes through and extends into the interior of the saw blade connector (2), the left side of the reciprocating saw (1) is fixedly connected to a control handle (4), and the bottom of the control handle (4) is fixedly installed with a base (5).

4. A reciprocating saw with a saw blade quick-change structure according to claim 1, characterized in that: The guide assembly (62) comprises two guide rods and two guide grooves. The guide rods are fixedly installed between the front and rear side walls of the inner cavity of the saw blade connector (2). A limiting groove is provided inside the L-shaped plate (61). The inner wall of the guide groove is slidably connected to the outer surface of the guide rod.

5. The reciprocating saw with a saw blade quick-change structure according to claim 1, characterized in that: The two locking members (63) each comprise a connecting plate and a locking block, wherein the locking block is fixedly mounted on the bottom of the connecting plate, and the connecting plate is fixedly mounted on the bottom of the L-shaped plate (61).

6. A reciprocating saw with a saw blade quick-change structure according to claim 1, characterized in that: The abutment member (66) comprises two abutment plates, the two abutment plates are respectively fixedly mounted on the inner top wall and the inner bottom wall of the control ring (67), and the two abutment plates are fixedly mounted with limit strips, which are slidably mounted inside the saw blade connector (2).

7. A reciprocating saw with a saw blade quick-change structure according to claim 2, characterized in that: The support assembly (68) includes two bearings, both of which are fixedly mounted on the outer surface of the saw blade connecting head (2), and the outer peripheral walls of the two bearings are fixedly connected to the inner wall of the control ring (67).

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