Handheld pneumatic air screwdriver

Abstract

The utility model discloses a handheld pneumatic air screw driver, which relates to the technical field of air screw drivers and comprises a pneumatic air screw driver main body, a pneumatic start button and a pressing wrench, the pneumatic start button is mounted on the upper wall surface of the pneumatic air screw driver main body, the pressing wrench is mounted on the upper wall surface of the pneumatic air screw driver main body, and a fixed handguard is mounted on the lower wall surface of the pneumatic air screw driver main body. A first universal shaft structure is installed at the driving end of the pneumatic air screw driver body, and a connecting rod structure is installed on the side wall face of the first universal shaft structure. The pneumatic screwdriver can be conveniently held by an operator through the protective cover, the pneumatic screwdriver can still be normally used even if the operator wears gloves, and the pneumatic screwdriver can be used under the condition that the space above a bolt is too small due to the fact that the pneumatic screwdriver has two universal installation modes. And the pneumatic air screwdriver can be used in a narrow place of the bolt, so that the application range of the pneumatic air screwdriver is widened to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic screwdrivers, in particular to a handheld pneumatic screwdriver. Background Art

[0002] The pneumatic screwdriver uses compressed air as its power and is equipped with a device to adjust and limit torque. It is mainly used for various assembly operations. It consists of several major parts: a pneumatic motor, a hammering device or a reduction device. Due to its high speed, high efficiency and low temperature rise, it has become an indispensable tool in the assembly industry. It comes in semi-automatic hammering type and fully automatic torque control type.

[0003] When using a pneumatic screwdriver, the operator needs to hold the pneumatic screwdriver in his hand. However, in winter, the operator needs to wear gloves to operate the pneumatic screwdriver. However, the surface of the pneumatic screwdriver is smooth, and it becomes very difficult to hold the pneumatic screwdriver. At the same time, the pneumatic screwdriver needs to be located above the bolts to be installed, but the space above some bolts is too small for the pneumatic screwdriver to enter, so the pneumatic screwdriver cannot be used. Some bolts are in a narrow place, making the pneumatic screwdriver even more impossible to use. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and propose a handheld pneumatic air screwdriver. The utility model can be held by an operator with gloves, and the operator can still use the utility model normally even with gloves. The utility model has two universal installation methods, which can allow the pneumatic air screwdriver to be used when the space above the bolt is too small, and can also allow the pneumatic air screwdriver to be used in a narrow place where the bolt is located, which improves the scope of application of the utility model to a certain extent.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A handheld pneumatic air screwdriver comprises: a pneumatic air screwdriver body, a pneumatic start button and a push wrench, wherein the pneumatic start button is mounted on the upper wall of the pneumatic air screwdriver body, the push wrench is mounted on the upper wall of the pneumatic air screwdriver body, and a fixed hand guard is mounted on the lower wall of the pneumatic air screwdriver body; a first universal shaft structure is mounted on the driving end of the pneumatic air screwdriver body, a connecting rod structure is mounted on the side wall of the first universal shaft structure, a second universal shaft structure is mounted on the side wall of the connecting rod structure, and a tool structure is mounted on the side wall of the second universal shaft structure; the first universal shaft structure comprises: a first universal fixed seat, a first cross shaft and a first universal movable shaft seat; the first universal fixed seat is mounted on the driving end of the pneumatic air screwdriver body, the first cross shaft is movably mounted inside the first universal fixed seat, and the first universal movable shaft seat is movably mounted on the outside of the first cross shaft.

[0007] The utility model is further configured such that the connecting rod structure includes: a first magnetic seat, a transmission connecting rod and a second magnetic seat; the first magnetic seat is installed on the side wall surface of the first universal movable shaft seat, the transmission connecting rod is movably adsorbed inside the first magnetic seat, and the second magnetic seat is movably adsorbed on the other end of the transmission connecting rod.

[0008] The utility model is further configured such that the second universal joint shaft structure includes: a second universal joint fixing seat, a second cross shaft and a second universal joint movable shaft seat; the second universal joint fixing seat is installed on the side wall surface of the second magnetic suction seat, the second cross shaft is movably installed inside the second universal joint fixing seat, and the second universal joint movable shaft seat is movably mounted on the outside of the second cross shaft.

[0009] The utility model is further configured such that the tool structure includes: a tool magnetic seat and a tool head; the tool magnetic seat is installed on the side wall surface of the second universal movable shaft seat, and the tool head is movably adsorbed inside the tool magnetic seat.

[0010] The utility model is further configured such that a gas source quick-install connector is installed on the rear wall surface of the pneumatic air blower body.

[0011] The utility model is further configured that the fixed hand guard is made of metal material.

[0012] The utility model is further configured that the push wrench is made of metal material.

[0013] The beneficial effects of the utility model are as follows: the utility model can be held by an operator through gloves, and the operator can still use the utility model normally even with gloves. The utility model has two universal installation methods, which can allow the pneumatic air screwdriver to be used when the space above the bolt is too small, and can also allow the pneumatic air screwdriver to be used in a narrow place where the bolt is, which improves the scope of application of the utility model to a certain extent.

[0014] 1. The handheld pneumatic screwdriver is provided with a first cardan shaft structure, which enables the tool head and the power shaft of the pneumatic screwdriver body to form a certain angle, especially when the height of the place to be installed is not high enough for the pneumatic screwdriver body to enter, so as to facilitate the installation work of the tool head.

[0015] 2. The handheld pneumatic screwdriver is provided with a connecting rod structure and a second cardan shaft structure. The connecting rod structure can be connected to the first cardan shaft structure, thereby achieving two turns and being able to send the tool head to a narrow place for installation work.

[0016] 3. The handheld pneumatic screwdriver is provided with a tool structure, which can realize the rapid installation of the tool head, and the tool head can be in a variety of bolt states, such as a cross screwdriver, a flat screwdriver, a hexagonal wrench, etc., which improves the application scope of the utility model to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the double universal shaft structure of a handheld pneumatic screwdriver proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of a single universal shaft structure of a handheld pneumatic screwdriver proposed by the utility model;

[0019] Figure 3 A schematic diagram of a handheld pneumatic air screwdriver proposed by the utility model;

[0020] Figure 4 The utility model is a schematic exploded view of the universal structure of a handheld pneumatic screwdriver.

[0021] In the figure: 1. Pneumatic air screwdriver body; 2. Pneumatic start button; 3. Press wrench; 4. Fixed hand guard; 5. First universal fixed seat; 6. First cross axis; 7. First universal movable shaft seat; 8. First magnetic seat; 9. Transmission connecting rod; 10. Second magnetic seat; 11. Second universal fixed seat; 12. Second cross axis; 13. Second universal movable shaft seat; 14. Tool magnetic seat; 15. Tool head; 16. Air source quick-release connector. DETAILED DESCRIPTION

[0022] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0025] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0026] Reference Figure 1-4 A handheld pneumatic air screwdriver comprises: a pneumatic air screwdriver body 1, a pneumatic start button 2 and a press wrench 3, the pneumatic start button 2 is mounted on the upper wall of the pneumatic air screwdriver body 1, the press wrench 3 is mounted on the upper wall of the pneumatic air screwdriver body 1, a fixed hand guard 4 is mounted on the lower wall of the pneumatic air screwdriver body 1, a first cardan shaft structure is mounted on the driving end of the pneumatic air screwdriver body 1, a connecting rod structure is mounted on the side wall of the first cardan shaft structure, a second cardan shaft structure is mounted on the side wall of the connecting rod structure, and a tool structure is mounted on the side wall of the second cardan shaft structure; the first cardan shaft structure comprises: a first cardan fixing seat 5, a first cross shaft 6 and the first universal movable shaft seat 7; the first universal fixed seat 5 is installed at the driving end of the pneumatic air screwdriver body 1, the first cross shaft 6 is movably installed inside the first universal fixed seat 5, the first universal movable shaft seat 7 is movably mounted on the outside of the first cross shaft 6, and the rear wall of the pneumatic air screwdriver body 1 is installed with an air source quick-release connector 16, the fixed hand guard 4 is made of metal material, and the press wrench 3 is made of metal material. The first universal shaft structure can make the tool head 15 and the power shaft of the pneumatic air screwdriver body 1 form a certain angle, especially when the height of the place to be installed is not enough for the pneumatic air screwdriver body 1 to enter, it is convenient for the tool head 15 to be installed.

[0027] Specifically, the connecting rod structure includes: a first magnetic seat 8, a transmission connecting rod 9 and a second magnetic seat 10; the first magnetic seat 8 is installed on the side wall of the first universal movable shaft seat 7, the transmission connecting rod 9 is movably adsorbed inside the first magnetic seat 8, and the second magnetic seat 10 is movably adsorbed on the other end of the transmission connecting rod 9. The second universal shaft structure includes: a second universal fixed seat 11, a second cross shaft 12 and a second universal movable shaft seat 13; the second universal fixed seat 11 is installed on the side wall of the second magnetic seat 10, the second cross shaft 12 is movably installed inside the second universal fixed seat 11, and the second universal movable shaft seat 13 is movably mounted on the outside of the second cross shaft 12. The connecting rod structure can be connected to the first universal shaft structure, thereby realizing two turns, and the tool head 15 can be sent to a narrow place for installation.

[0028] Specifically, the tool structure includes: a tool magnetic seat 14 and a tool head 15; the tool magnetic seat 14 is installed on the side wall surface of the second universal movable shaft seat 13, and the tool head 15 is movably adsorbed inside the tool magnetic seat 14. The tool structure can realize the rapid installation of the tool head 15, and the tool head 15 can be in a variety of bolt states, such as a cross screwdriver, a flat-head screwdriver, a hexagonal wrench, etc., which improves the scope of application of the utility model to a certain extent.

[0029] Working principle: When using the utility model, first connect the external air source to the utility model through the air source quick-install connector 16, and then the operator can hold the utility model. There are two ways to hold the utility model. One is a positive grip, the operator passes the palm through the fixed hand guard 4, and the operator's four fingers are placed above the pressing wrench 3, which is convenient for the operator to press the pressing wrench 3 and the pneumatic start button 2 with four fingers, thereby starting the rotation of the utility model. The other is a reverse grip, the operator passes the four fingers through the fixed hand guard 4, and puts the governor above the pressing wrench 3, which is convenient for the operator to press the pressing wrench with the palm 3 and the pneumatic start button 2, thereby starting the utility model to rotate. If the place to be installed is not convenient for the tool head 15 to be installed vertically, the utility model can be used to work with a single universal shaft, and the tool head 15 can be adsorbed inside the first magnetic seat 8. At this time, the axis of the tool head 15 and the axis of the main shaft of the pneumatic air screwdriver body 1 are rotated at a certain angle. If the place to be installed is very narrow and it is inconvenient for the pneumatic air screwdriver body 1 to approach, the operator can adsorb the transmission connecting rod 9 and the first magnetic seat 8, and adsorb the tool head 15 and the tool magnetic seat 14, so as to facilitate the tool head 15 to carry out in-depth work.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A handheld pneumatic screwdriver, comprising: A pneumatic air screwdriver body (1), a pneumatic start button (2) and a push wrench (3), wherein the pneumatic start button (2) is mounted on the upper wall of the pneumatic air screwdriver body (1), and the push wrench (3) is mounted on the upper wall of the pneumatic air screwdriver body (1), characterized in that a fixed hand guard (4) is mounted on the lower wall of the pneumatic air screwdriver body (1), a first cardan shaft structure is mounted on the driving end of the pneumatic air screwdriver body (1), a connecting rod structure is mounted on the side wall of the first cardan shaft structure, a second cardan shaft structure is mounted on the side wall of the connecting rod structure, and a tool structure is mounted on the side wall of the second cardan shaft structure; The first universal shaft structure comprises: a first universal fixed seat (5), a first cross shaft (6) and a first universal movable shaft seat (7); The first universal fixed seat (5) is installed on the driving end of the pneumatic air compressor body (1), the first cross shaft (6) is movably installed inside the first universal fixed seat (5), and the first universal movable shaft seat (7) is movably mounted outside the first cross shaft (6).

2. A handheld pneumatic screwdriver according to claim 1, characterized in that: The connecting rod structure comprises: a first magnetic seat (8), a transmission connecting rod (9) and a second magnetic seat (10); The first magnetic seat (8) is mounted on the side wall of the first universal movable shaft seat (7), the transmission connecting rod (9) is movably adsorbed inside the first magnetic seat (8), and the second magnetic seat (10) is movably adsorbed on the other end of the transmission connecting rod (9).

3. A handheld pneumatic screwdriver according to claim 1, characterized in that: The second universal shaft structure comprises: a second universal fixed seat (11), a second cross shaft (12) and a second universal movable shaft seat (13); The second universal fixing seat (11) is mounted on the side wall surface of the second magnetic suction seat (10), the second cross shaft (12) is movably mounted inside the second universal fixing seat (11), and the second universal movable shaft seat (13) is movably mounted outside the second cross shaft (12).

4. A handheld pneumatic screwdriver according to claim 1, characterized in that: The tool structure comprises: a tool magnetic seat (14) and a tool head (15); The tool magnetic suction seat (14) is mounted on the side wall surface of the second universal movable shaft seat (13), and the tool head (15) is movably adsorbed inside the tool magnetic suction seat (14).

5. A handheld pneumatic screwdriver according to claim 1, characterized in that: The rear wall surface of the pneumatic air blower body (1) is provided with an air source quick-release connector (16).

6. A handheld pneumatic screwdriver according to claim 1, characterized in that: The fixed hand guard (4) is made of metal material.

7. A handheld pneumatic screwdriver according to claim 1, characterized in that: The push wrench (3) is made of metal material.

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