Bent angle pneumatic wrench

Abstract

The utility model discloses a bent angle pneumatic wrench which comprises a wrench rod, a pneumatic box is installed at one end of the wrench rod, an anti-skid sleeve is fixedly connected to the outer end of the wrench rod, a grip is fixedly connected to one end of the anti-skid sleeve, a connecting piece is fixedly connected to the other end of the wrench rod, an output shaft is rotationally connected to the interior of the connecting piece, and the output shaft is fixedly connected to the outer end of the wrench rod. A limiting groove is formed in the output shaft, a connecting shaft is correspondingly installed in the installing groove, and the limiting groove and the installing groove are formed in the output shaft of the bent angle pneumatic wrench and can rapidly correspond to a limiting block on the wrench head and the connecting shaft; the positioning block and the positioning groove can be rapidly clamped under the action of the spring assembly so as to ensure that the wrench head can be rapidly installed on the output shaft, the purpose of double locking is achieved through the positioning bolt and the nut, the connection strength of the whole pneumatic wrench is improved, and the service life of the pneumatic wrench is prolonged. And meanwhile, a worker can conveniently select a proper wrench head according to different machining conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pneumatic wrench, concretely to a bent angle pneumatic wrench. BACKGROUND

[0002] The pneumatic torque wrench is a torque wrench with a high-pressure air pump as a power source. It is driven by one or two powerful air motors to drive a torque multiplier with three or more week-to-week gear, and the torque size is controlled by adjusting the gas pressure. For the specific torque requirement, each tool is equipped with a special air pressure torque control chart and correction report. In order to further apply, the pneumatic torque wrench can be matched with torque sensor at the same time, so that the output torque is more accurate. After obtaining the required torque, the appropriate circuit system can be used to manually or automatically close the gas source

[0003] The existing bent angle pneumatic wrench is difficult to replace the wrench head quickly for different processing conditions in the use process, which leads to the need to equip with various specifications of pneumatic wrenches in use, which not only wastes time and effort, but also greatly increases the processing cost. SUMMARY

[0004] The utility model discloses a bent angle pneumatic wrench, solve the problem of inconvenient replacement of different specifications wrench head in prior art bent angle pneumatic wrench.

[0005] In order to achieve the above object, provide a kind of bent angle pneumatic wrench, including wrench rod, the one end of the wrench rod is equipped with pneumatic box, the outer end of the wrench rod is fixedly connected with antiskid sleeve, the one end of the antiskid sleeve is fixedly connected with handle, the other end of the wrench rod is fixedly connected with connecting piece, the inside rotationally connected with output shaft of the connecting piece;

[0006] The inside of the output shaft is provided with installation groove, the inside of the installation groove is correspondingly provided with connecting shaft, the other end of the connecting shaft is fixedly connected with wrench head, the inside of the wrench head is provided with screw hole, the inside of the output shaft and screw hole is screw-connected with locating bolt, and the locating bolt is screw-connected with nut.

[0007] According to the bent angle pneumatic wrench, the two ends of the output shaft are provided with slot, and the inner side of the slot is provided with sliding groove.

[0008] According to the bent angle pneumatic wrench, the inside of the sliding groove is fixedly connected with sliding rod, and the sliding rod is slidably connected with sliding block.

[0009] According to the bent angle pneumatic wrench, the sliding rod is sleeved with spring, one end of the spring is fixedly connected with the sliding block, and the other end is fixedly connected in the inner end of the sliding groove.

[0010] According to the corner pneumatic wrench, the outer end of the sliding block is fixedly connected with a connecting plate, and the inner end of the connecting plate is fixedly connected with a positioning block.

[0011] According to the corner pneumatic wrench, the two ends of the mounting groove are provided with limiting grooves, the outer two ends of the connecting shaft are fixedly connected with limiting blocks, the limiting blocks correspond to the limiting grooves, the inner part of the limiting block is provided with a positioning groove, and the positioning block corresponds to the positioning groove.

[0012] Compared with the prior art, the corner pneumatic wrench has the advantages that:

[0013] 1、The corner pneumatic wrench is provided with a limiting groove and a mounting groove on the output shaft, which can be quickly matched with the limiting block on the wrench head and the connecting shaft, and the positioning block and the positioning groove can be quickly clamped under the action of the spring assembly, so that the wrench head can be quickly mounted on the output shaft, and the positioning bolt and the nut are used to achieve double locking, improve the connection strength of the entire pneumatic wrench, and facilitate workers to select appropriate wrench heads according to different processing conditions.

[0014] Additional aspects and advantages of the present application will be given in part in the following description, and some will become apparent from the following description, or will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below in combination with the drawings and embodiments.

[0016] Figure 1 It is a front view of the corner pneumatic wrench of the present application;

[0017] Figure 2 It is a side view of the corner pneumatic wrench of the present application;

[0018] Figure 3 It is a wrench head installation schematic view of the corner pneumatic wrench of the present application;

[0019] Figure 4 It is a corner pneumatic wrench of the present application Figure 1 Structure schematic view of A in the present application.

[0020] In the figure: 1, pneumatic box; 2, handle; 3, anti-skid sleeve; 4, wrench rod; 5, connecting piece; 6, wrench head; 7, output shaft; 8, positioning bolt; 9, connecting plate; 10, limiting block; 11, positioning groove; 12, connecting shaft; 13, screw hole; 14, slot; 15, sliding rod; 16, spring; 17, sliding block; 18, limiting groove; 19, mounting groove; 20, positioning block; 21, sliding groove. DETAILED DESCRIPTION

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of the present application.

[0022] Please refer to Figures 1-4 The present application provides a technical solution: a curved corner pneumatic wrench, comprising a wrench rod 4, one end of the wrench rod 4 is provided with a pneumatic box 1, the outer end of the wrench rod 4 is fixedly connected with an anti-skid sleeve 3, one end of the anti-skid sleeve 3 is fixedly connected with a handle 2, the other end of the wrench rod 4 is fixedly connected with a connecting piece 5, the inside of the connecting piece 5 is rotatably connected with an output shaft 7, the handle 2 and the anti-skid sleeve 3 can be used by the staff, improving the convenience of the entire pneumatic wrench during use;

[0023] The inside of the output shaft 7 is provided with a mounting groove 19, the inside of the mounting groove 19 is correspondingly provided with a connecting shaft 12, the other end of the connecting shaft 12 is fixedly connected with a wrench head 6, the inside of the wrench head 6 is provided with a threaded hole 13, the output shaft 7 is threadedly connected with a positioning bolt 8 in the inside of the threaded hole 13, and the positioning bolt 8 is threadedly connected with a nut, the connecting shaft 12 can be locked in the inside of the output shaft 7 through the cooperation between the positioning bolt 8 and the threaded hole 13, ensuring that the output shaft 7 can drive the wrench head 6 to rotate, improving the practicability;

[0024] The two ends of the output shaft 7 are provided with grooves 14, the inner sides of the grooves 14 are provided with sliding grooves 21, the inside of the sliding groove 21 is fixedly connected with a sliding rod 15, the sliding rod 15 is slidably connected with a sliding block 17, the sliding rod 15 is sleeved with a spring 16, one end of the spring 16 is fixedly connected with the sliding block 17, and the other end is fixedly connected to the inner end of the sliding groove 21, the connecting plate 9 and the positioning block 20 can have elastic force under the action of the sliding rod 15, the sliding groove 21 and the spring 16;

[0025] The outer end of the sliding block 17 is fixedly connected with a connecting plate 9, the inner end of the connecting plate 9 is fixedly connected with a positioning block 20, the two ends of the installation slot 19 are provided with limiting grooves 18, the outer two ends of the connecting shaft 12 are fixedly connected with limiting blocks 10, the limiting blocks 10 correspond to the limiting grooves 18, the inner part of the limiting blocks 10 is provided with positioning grooves 11, the positioning block 20 corresponds to the positioning grooves 11, the connecting shaft 12 outside the wrench head 6 corresponds to the installation slot 19, and the limiting blocks 10 at the two ends can enter the inner part of the limiting grooves 18, upward pulling the connecting plate 9 drives the positioning block 20 to move, so that the limiting blocks 10 can smoothly enter the inner part of the limiting grooves 18, then the connecting plate 9 is loosened, the connecting plate 9 drives the positioning block 20 to complete the reset operation under the action of the spring 16, and the connecting shaft 12 is clamped.

[0026] Working principle: the pneumatic joint inside the pneumatic box 1 is connected with a pneumatic device, the pneumatic device can ensure that the output shaft 7 drives the wrench head 6 to rotate, and completes the working operation, when it is necessary to replace the wrench head 6 in different processing scenes, firstly, a suitable wrench head 6 is selected, the connecting shaft 12 outside the wrench head 6 corresponds to the installation slot 19, and the limiting blocks 10 at the two ends can enter the inner part of the limiting grooves 18, upward pulling the connecting plate 9 drives the positioning block 20 to move, so that the limiting blocks 10 can smoothly enter the inner part of the limiting grooves 18, then the connecting plate 9 is loosened, the connecting plate 9 drives the positioning block 20 to complete the reset operation under the action of the spring 16, and the connecting shaft 12 is clamped, finally, the cooperation between the positioning bolt 8 and the nut can complete the double locking of the wrench head 6, and the stability of the wrench head 6 during use is improved.

[0027] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. A corner pneumatic wrench comprising a wrench bar (4), characterized in that, One end of the wrench rod (4) is provided with a pneumatic box (1), the outer end of the wrench rod (4) is fixedly connected with an anti-skid sleeve (3), one end of the anti-skid sleeve (3) is fixedly connected with a handle (2), the other end of the wrench rod (4) is fixedly connected with a connecting piece (5), the inside of the connecting piece (5) is rotatably connected with an output shaft (7). The inside of the output shaft (7) is provided with a mounting groove (19), the inside of the mounting groove (19) is correspondingly provided with a connecting shaft (12), the other end of the connecting shaft (12) is fixedly connected with a wrench head (6), the inside of the wrench head (6) is provided with a threaded hole (13), the output shaft (7) and the threaded hole (13) are internally screwed with a positioning bolt (8), and the positioning bolt (8) is screwed with a nut.

2. A corner pneumatic wrench as claimed in claim 1, characterized in that: Both ends of the output shaft (7) are provided with a slot (14), and both ends of the slot (14) are provided with a sliding groove (21).

3. A corner pneumatic wrench as claimed in claim 2, characterized in that: The inside of the sliding groove (21) is fixedly connected with a sliding rod (15), and the sliding rod (15) is slidably connected with a sliding block (17).

4. A corner pneumatic wrench as claimed in claim 3, characterized in that: The sliding rod (15) is sleeved with a spring (16), one end of the spring (16) is fixedly connected with the sliding block (17), and the other end is fixedly connected in the inner end of the sliding groove (21).

5. A corner pneumatic wrench as claimed in claim 3, characterized in that: The outer end of the sliding block (17) is fixedly connected with a connecting plate (9), and the inner end of the connecting plate (9) is fixedly connected with a positioning block (20).

6. A bend-pneumatic wrench as claimed in claim 5, characterized in that: Both ends of the mounting groove (19) are provided with a limiting groove (18), both ends of the connecting shaft (12) are fixedly connected with a limiting block (10), the limiting block (10) corresponds to the limiting groove (18), the inside of the limiting block (10) is provided with a positioning groove (11), and the positioning block (20) corresponds to the positioning groove (11).

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