Handheld belt sander

Abstract

The utility model discloses a handheld belt sander, and relates to the technical field of belt sanders. A handheld belt sander comprises a handle, a connecting plate, a fixed supporting arm, a movable supporting arm, an elastic piece, a sanding belt, a first driven wheel, a second driven wheel, a driving wheel, a motor and an adjusting handle. The connecting plate is fixed at the end of the handle; the fixed support arm and the movable support arm are crossed and are respectively positioned on two sides of the connecting plate; the fixed supporting arm is fixed to the connecting plate, and the movable supporting arm is hinged to the connecting plate. Two ends of the elastic piece are fixedly connected to the inner sides of the fixed support arm and the movable support arm respectively; the first driven wheel, the second driven wheel and the driving wheel are arranged on the same side; the first driven wheel is rotationally arranged on the movable supporting arm, the second driven wheel is rotationally arranged on the fixed supporting arm, and the driving wheel is rotationally arranged on the connecting plate and located below the crossed position of the fixed supporting arm and the movable supporting arm. According to the handheld belt sander, the belt sander is convenient to carry, and the position of the belt sander can be flexibly adjusted when a workpiece is polished.

Description

Technical Field

[0001] The utility model relates to the technical field of abrasive belt machines, in particular to a handheld abrasive belt machine. Background Art

[0002] The belt sander is a commonly used workpiece surface treatment device that can be used to polish, trim, deburr, etc.

[0003] At present, the existing belt sanders are usually large in size and weight, and are not easy for workers to carry when they go out for work; at the same time, due to the large size and weight of the belt sanders, they are not easy to move, and lack flexibility when adjusting multiple polishing positions of the workpiece.

[0004] Therefore, the inventor believes that how to design a belt sander that is easy to carry and can be flexibly adjusted in position is a technical problem that technicians in this field urgently need to solve.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] In view of the above technical problems, an embodiment of the utility model provides a handheld sanding machine to solve the problems raised in the above background technology.

[0007] The utility model provides the following technical solutions:

[0008] A handheld belt sander, comprising:

[0009] A handle, a connecting plate, a fixed support arm, a movable support arm, an elastic member, an abrasive belt, a first driven wheel, a second driven wheel, a driving wheel, a motor and an adjusting handle;

[0010] The connecting plate is fixed to the end of the handle;

[0011] The fixed support arm and the movable support arm are cross-arranged and respectively located on both sides of the connecting plate; the fixed support arm is fixed on the connecting plate, and the movable support arm is hinged on the connecting plate;

[0012] The two ends of the elastic member are respectively fixedly connected to the inner sides of the fixed support arm and the movable support arm;

[0013] The first driven wheel, the second driven wheel and the driving wheel are arranged on the same side; wherein,

[0014] The first driven wheel is rotatably arranged on the movable arm, the second driven wheel is rotatably arranged on the fixed arm, and the driving wheel is rotatably arranged on the connecting plate and is located below the intersection of the fixed arm and the movable arm;

[0015] The sanding belt drive is connected to the first driven wheel, the second driven wheel and the driving wheel;

[0016] The motor is fixed on the connecting plate and is located on the opposite side of the driving wheel, and the main shaft of the motor is fixedly connected to the central axis of the driving wheel;

[0017] The adjusting handle is connected to the fixed support arm, and the axis of the adjusting handle is perpendicular to the axis of the handle.

[0018] Preferably, the fixed support arm includes a fixed oblique support arm and a fixed straight support arm connected to each other; the movable support arm includes a movable oblique support arm and a movable straight support arm connected to each other; the fixed oblique support arm and the movable oblique support arm are cross-arranged.

[0019] Preferably, a first hook ring is inherently provided on the inner side of the connection position between the fixed oblique support arm and the fixed straight support arm, and a second hook ring is inherently provided on the inner side of the connection position between the movable oblique support arm and the movable straight support arm; the elastic member is a spring, and both ends of the spring are fixedly connected to the first hook ring and the second hook ring respectively.

[0020] Preferably, a baffle is fixed on the handle at a circumferential edge position close to the connecting plate.

[0021] A handheld sanding machine provided by an embodiment of the utility model has the following beneficial effects: the utility model designs a handheld sanding machine, which is easy to carry and can be flexibly adjusted in position during workpiece polishing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the utility model from the first angle;

[0023] Figure 2 This is a schematic diagram of the structure of the utility model from a second angle;

[0024] Figure 3 This is a schematic diagram of the structure of the utility model from a third angle;

[0025] Figure 4 This is a schematic diagram of the structure of the utility model from a fourth angle;

[0026] Figure 5 For this utility model Figure 4 A partial enlarged view of middle A;

[0027] Figure 6 This is a rendering of the steel pipe polishing operation performed by the utility model. DETAILED DESCRIPTION

[0028] 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 of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 6 .

[0030] In view of the problems mentioned in the above background technology, the embodiment of the utility model provides a handheld sanding machine to solve the above technical problems, and its technical solution is as follows:

[0031] A handheld belt sander, comprising:

[0032] A handle 110, a connecting plate 112, a fixed arm 150, a movable arm 160, an elastic member 170, an abrasive belt 120, a first driven wheel 131, a second driven wheel 132, a driving wheel 133, a motor 140 and an adjusting handle 180;

[0033] The connecting plate 112 is fixed to the end of the handle 110;

[0034] The fixed arm 150 and the movable arm 160 are cross-arranged and respectively located on both sides of the connecting plate 112; the fixed arm 150 is fixed on the connecting plate 112, and the movable arm 160 is hinged on the connecting plate 112 through a pin shaft;

[0035] The two ends of the elastic member 170 are respectively fixedly connected to the inner sides of the fixed support arm 150 and the movable support arm 160;

[0036] The first driven wheel 131, the second driven wheel 132, and the driving wheel 133 are arranged on the same side; wherein,

[0037] The first driven wheel 131 is rotatably disposed on the movable arm 160, the second driven wheel 132 is rotatably disposed on the fixed arm 150, and the driving wheel 133 is rotatably disposed on the connecting plate 112 and is located below the intersection of the fixed arm 150 and the movable arm 160;

[0038] The sanding belt 120 is drivingly connected to the first driven wheel 131, the second driven wheel 132, and the driving wheel 133;

[0039] The motor 140 is fixed on the connecting plate 112 and is located on the opposite side of the driving wheel 133. The main shaft of the motor 140 is fixedly connected to the central axis of the driving wheel 133; the driving wheel 133 is fixed on the central axis;

[0040] The adjustment handle 180 is connected to the fixed arm 150 , and the axis of the adjustment handle 180 is perpendicular to the axis of the handle 110 .

[0041] In this embodiment, the fixed support arm 150 includes a fixed oblique support arm 151 and a fixed straight support arm 152 connected to each other; the movable support arm 160 includes a movable oblique support arm 161 and a movable straight support arm 162 connected to each other; the fixed oblique support arm 151 and the movable oblique support arm 161 are cross-arranged.

[0042] In this embodiment, a first hook ring 150a is inherently provided on the inner side of the connection position of the fixed oblique support arm 151 and the fixed straight support arm 152, and a second hook ring 160a is inherently provided on the inner side of the connection position of the movable oblique support arm 161 and the movable straight support arm 162; the elastic member 170 is a spring, and both ends of the spring are respectively fixedly connected to the first hook ring 150a and the second hook ring 160a.

[0043] In this embodiment, a baffle plate 111 is fixed to the circumferential edge of the handle 110 near the connecting plate 112 . The baffle plate 111 can protect the operator's hands from contacting the sanding belt 120 when the operator holds the utility model.

[0044] The working principle of a hand-held sanding machine provided by the utility model embodiment is as follows: Taking polishing steel pipe as an example, Figure 6 The operator holds the handle 110 of the utility model with one hand and the adjusting handle 180 of the utility model with the other hand, and sticks the sanding belt 120 to the steel pipe. The polishing direction can be adjusted by controlling the adjusting handle 180. At the same time, the sanding belt 120 is pressed tightly against the steel pipe, and the movable arm 160 can be swung and adjusted, wherein the elastic member 170 is mainly used to adjust the tension between the fixed arm 150 and the movable arm 160.

[0045] A handheld sanding machine provided by an embodiment of the utility model has the following beneficial effects: the utility model designs a handheld sanding machine, which is easy to carry and can be flexibly adjusted in position during workpiece polishing operations.

[0046] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0047] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0048] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of the utility model, and all these changes or substitutions should fall within the protection scope of the claims attached to the utility model.

Claims

1. A handheld belt sander, characterized in that: include: A handle, a connecting plate, a fixed support arm, a movable support arm, an elastic member, an abrasive belt, a first driven wheel, a second driven wheel, a driving wheel, a motor and an adjusting handle; The connecting plate is fixed to the end of the handle; The fixed support arm and the movable support arm are cross-arranged and respectively located on both sides of the connecting plate; the fixed support arm is fixed on the connecting plate, and the movable support arm is hinged on the connecting plate; The two ends of the elastic member are respectively fixedly connected to the inner sides of the fixed support arm and the movable support arm; The first driven wheel, the second driven wheel and the driving wheel are arranged on the same side; wherein, The first driven wheel is rotatably arranged on the movable arm, the second driven wheel is rotatably arranged on the fixed arm, and the driving wheel is rotatably arranged on the connecting plate and is located below the intersection of the fixed arm and the movable arm; The sanding belt drive is connected to the first driven wheel, the second driven wheel and the driving wheel; The motor is fixed on the connecting plate and is located on the opposite side of the driving wheel, and the main shaft of the motor is fixedly connected to the central axis of the driving wheel; The adjusting handle is connected to the fixed support arm, and the axis of the adjusting handle is perpendicular to the axis of the handle.

2. The handheld belt sander according to claim 1, characterized in that: The fixed support arm comprises a fixed oblique support arm and a fixed straight support arm which are connected to each other; the movable support arm comprises a movable oblique support arm and a movable straight support arm which are connected to each other; the fixed oblique support arm and the movable oblique support arm are cross-arranged.

3. The handheld belt sander according to claim 2, characterized in that: A first hook is provided inside the connection position of the fixed oblique support arm and the fixed straight support arm, and a second hook is provided inside the connection position of the movable oblique support arm and the movable straight support arm; the elastic member is a spring, and both ends of the spring are fixedly connected to the first hook and the second hook respectively.

4. The handheld belt sander according to claim 1, characterized in that: A baffle is fixed on the handle at a circumferential edge position close to the connecting plate.

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