Striking structure of impact type pneumatic wrench

Abstract

The utility model relates to the technical field of pneumatic wrenches, and discloses a striking structure of an impact type pneumatic wrench, which comprises a pneumatic wrench main body, and a protective shell is arranged on the outer side of the pneumatic wrench main body. The locking rod is pulled upwards through the lifting handle, the fixing block extrudes the second spring, after the locking rod is separated from the inner side of the connecting groove, the connecting block loses limitation, the first spring enables the moving block to push the connecting block to be separated from the fixing frame through accumulated elastic force, and therefore the protective shell can be disassembled, tools are not needed in the disassembling process, and the disassembling efficiency is improved. The time consumed when the striking mechanism is maintained is shortened, and the maintenance convenience is improved; lubricating oil is injected into the oil storage box and flows into the oil guide ring through the connecting pipe under the action of gravity, the lubricating oil can gradually fall into the surface of the striking structure due to the fact that the hole diameter of the oil leakage hole is small, the protective shell does not need to be detached when the lubricating oil is added, the process is simple, and lubrication can be rapidly completed.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic trigger technology, specifically to a striking structure for an impact-type pneumatic trigger. Background Technology

[0002] An impact-type pneumatic wrench is a pneumatic tool powered by compressed air. It is an important piece of equipment in the field of mechanical engineering, primarily used for tightening and loosening bolts. The impact mechanism is the core module that enables the pneumatic wrench to tighten or loosen bolts, directly determining its torque output and working efficiency.

[0003] In existing impact-type air triggers, the striking structure is typically covered by a protective shell, which is fixed to the air trigger body with multiple bolts. Repairing the striking mechanism or replacing parts requires using tools to disassemble these bolts sequentially to remove the protective shell, making the process cumbersome and time-consuming, thus reducing maintenance convenience. Furthermore, components such as the striking block, main shaft, and impact sleeve operate at high speeds and under impact, requiring lubrication to reduce friction and extend service life. Adding lubricant usually involves removing the protective shell and applying it to the surface of the components, a tedious process that hinders rapid lubrication and reduces the efficiency of striking structure maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a striking structure for an impact-type gas trigger to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a striking structure for an impact-type gas trigger, comprising:

[0006] The air plate machine body has a protective shell on its outer side, and two sets of connecting blocks are fixedly connected to the outer side of the protective shell. Two sets of fixing brackets are fixedly connected to the outer side of the air plate machine body.

[0007] The rotor is located inside the main body of the air plate machine. An impact sleeve is snapped onto the outside of the rotor. Two impact blocks are detachably installed on the inside of the impact sleeve. A main shaft is provided on the outside of the impact sleeve.

[0008] Positioning components are provided on the outside of the connecting block, and there are two sets of them. A moving component is provided on the inside of the fixing frame, and a guiding component is provided on the outside of the moving component.

[0009] The locking rod slides on the inner wall of the fixing frame, the inner wall of the connecting block is provided with a connecting groove, and a reset component is provided on the outer side of the locking rod;

[0010] A storage component is disposed on the outside of the protective shell. A connecting component for conveying lubricating oil is disposed on the outside of the storage component. Multiple sets of oil leakage holes are disposed on the outside of the connecting component.

[0011] Preferably, the positioning component includes a positioning block fixed to the outside of the connecting block, and the inner wall of the fixing frame is provided with a fixing groove, wherein the outer side of the positioning block is engaged with the inner side of the fixing groove.

[0012] Preferably, the movable component includes a first spring fixed inside the fixed frame, and a movable block is fixedly connected to the other end of the first spring. The top of the movable block is provided with an oblique groove.

[0013] Preferably, the guide assembly includes a guide block fixed to the bottom of the movable block, the inner wall of the fixing frame is provided with a limiting groove, and the outer side of the guide block is slidably connected to the inner wall of the limiting groove.

[0014] Preferably, the reset assembly includes a fixing block fixed to the outside of the locking rod, a second spring is sleeved on the outside of the locking rod, and a handle is fixedly connected to one end of the locking rod.

[0015] Preferably, the storage component includes an oil reservoir fixed to the outside of the protective shell, and a sealing cap is threadedly connected to the top of the oil reservoir.

[0016] Preferably, the connecting assembly includes a connecting pipe connected to the bottom of the oil reservoir, the other end of the connecting pipe being connected to an oil guide ring, and the bottom of the oil guide ring being connected to multiple oil leakage holes.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention allows the locking rod to be pulled upwards by the handle, causing the fixing block to compress the second spring. After the locking rod disengages from the inner side of the connecting groove, the connecting block loses its limiting position. The first spring, through its accumulated elastic force, causes the moving block to push the connecting block apart from the fixing frame, thus completing the disassembly of the protective shell. This eliminates the need for tools during disassembly and assembly, shortening the time required for maintenance of the striking mechanism and improving the convenience of maintenance. By injecting lubricating oil into the oil reservoir, the lubricating oil flows into the oil guide ring through the connecting pipe under the action of gravity. Due to the small diameter of the oil leakage holes, the lubricating oil gradually falls onto the surface of the striking structure. The multiple sets of oil leakage holes ensure that the lubricating oil can cover multiple key parts of the striking structure, ensuring that the entire striking structure is fully lubricated. This allows for adding lubricating oil without disassembling the protective shell, simplifying the process and enabling quick lubrication, thereby improving the efficiency of striking structure maintenance. Attached Figure Description

[0019] Figure 1A schematic diagram of a preferred embodiment of the striking structure of an impact-type gas trigger provided by this utility model;

[0020] Figure 2 A schematic diagram of the internal structure of the protective shell provided by this utility model;

[0021] Figure 3 A schematic diagram of the mobile component structure provided by this utility model;

[0022] Figure 4 A schematic diagram of the connection component structure provided by this utility model.

[0023] In the diagram: 1. Main body of the air-operated blower; 2. Protective shell; 3. Connecting block; 4. Fixing frame; 5. Rotor; 6. Impact sleeve; 7. Strike block; 8. Main shaft; 9. Positioning assembly; 91. Positioning block; 92. Fixing groove; 10. Moving assembly; 101. Moving block; 102. Angled groove; 103. First spring; 11. Guide assembly; 111. Guide block; 112. Limiting groove; 12. Locking rod; 13. Connecting groove; 14. Reset assembly; 141. Fixing block; 142. Second spring; 143. Handle; 15. Storage assembly; 151. Oil reservoir; 152. Sealing cover; 16. Connecting assembly; 161. Connecting pipe; 162. Oil guide ring; 17. Oil leakage hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4As shown, the striking structure of an impact-type pneumatic trigger includes a pneumatic trigger body 1, a protective shell 2 on the outer side of the pneumatic trigger body 1, two sets of connecting blocks 3 fixedly connected to the outer side of the protective shell 2, and two sets of fixing brackets 4 fixedly connected to the outer side of the pneumatic trigger body 1; a rotor 5, located inside the pneumatic trigger body 1, is the core power component of the pneumatic trigger, generating high-speed rotational motion by receiving energy from a pneumatic motor or compressed air; an impact sleeve 6 is snapped onto the outer side of the rotor 5, and the impact sleeve 6 transmits the rotational motion of the rotor 5 to the striking blocks 7 through a mechanical connection; two striking blocks 7 are detachably installed on the inner side of the impact sleeve 6, and the striking blocks 7 are components that directly generate impact force, converting rotational kinetic energy into pulse torque, which is prior art and will not be elaborated further here; a main shaft 8 is provided on the outer side of the impact sleeve 6, used to transmit the pulse torque generated by the striking blocks 7 to bolts or nuts to realize tightening or loosening operations, which is prior art and will not be elaborated further here.

[0026] Positioning components 9 are located on the outside of connecting block 3, and there are two sets of them. A moving component 10 is located on the inside of the fixing frame 4, and a guiding component 11 is located on the outside of the moving component 10. A locking rod 12 slides on the inner wall of the fixing frame 4. A connecting groove 13 is opened on the inner wall of the connecting block 3. A reset component 14 is located on the outside of the locking rod 12. A storage component 15 is located on the outside of the protective shell 2. A connecting component 16 for conveying lubricating oil is located on the outside of the storage component 15. Multiple sets of oil leakage holes 17 are located on the outside of the connecting component 16. The oil leakage holes 17 are made of silicone material and have a small diameter. This design can accurately control the flow rate of lubricating oil. Due to the small diameter, the lubricating oil will not flow out in large quantities at once, but will drip continuously and slowly, ensuring that the surface of the impact structure receives uniform and appropriate lubrication.

[0027] The positioning component 9 includes a positioning block 91 fixed to the outside of the connecting block 3. The inner wall of the fixing frame 4 is provided with a fixing groove 92. The outer side of the positioning block 91 is engaged with the inner side of the fixing groove 92. When the positioning block 91 is engaged with the inner side of the fixing groove 92, the connecting block 3 will no longer be able to move forward, thereby improving the accuracy of the connection position between the locking rod 12 and the connecting groove 13 and improving the structural stability of the connecting block 3.

[0028] The movable component 10 includes a first spring 103 fixed inside the fixed frame 4. The other end of the first spring 103 is fixedly connected to a movable block 101. The top of the movable block 101 is provided with an inclined groove 102. The first spring 103 will push the movable block 101 to complete its reset after it moves. When the connecting block 3 is not connected to the fixed frame 4, one end of the locking rod 12 will be located inside the inclined groove 102. The inclined groove 102 will guide one end of the locking rod 12 to slide to a higher point as the movable block 101 moves.

[0029] The guide assembly 11 includes a guide block 111 fixed to the bottom of the moving block 101. The inner wall of the fixing frame 4 is provided with a limiting groove 112. The outer side of the guide block 111 is slidably connected to the inner wall of the limiting groove 112. The moving block 101 will slide along the inner side of the limiting groove 112 with the guide block 111. The limiting groove 112 restricts the movement path of the guide block 111 and ensures that the moving block 101 moves according to a predetermined trajectory.

[0030] The reset assembly 14 includes a fixing block 141 fixed to the outside of the locking rod 12. A second spring 142 is sleeved on the outside of the locking rod 12. A handle 143 is fixedly connected to one end of the locking rod 12. The top of the fixing block 141 is fixedly connected to one end of the second spring 142. When the locking rod 12 moves upward, it will squeeze the second spring 142 through the fixing block 141. After the locking rod 12 loses its limit, the second spring 142 will reset the fixing block 141 and the locking rod 12 through its elastic force.

[0031] The storage component 15 includes an oil reservoir 151 fixed to the outside of the protective shell 2 for injecting lubricating oil; a sealing cap 152 is threadedly connected to the top of the oil reservoir 151 to form a sealed space inside the oil reservoir 151.

[0032] The connecting assembly 16 includes a connecting pipe 161 connected to the bottom of the oil reservoir 151. The other end of the connecting pipe 161 is connected to an oil guide ring 162, which is a semi-circular ring that can guide lubricating oil into the oil drain hole 17. The bottom of the oil guide ring 162 is connected to multiple oil drain holes 17. The oil drain holes 17 are made of silicone and have a small diameter. Lubricating oil will fall onto the surface of the impact structure through its oil outlet end, which improves the convenience of maintenance of the impact structure.

[0033] Working principle: When the protective shell 2 needs to be disassembled during use, first pull the locking rod 12 upwards using the handle 143. The fixing block 141 compresses the second spring 142. After the locking rod 12 disengages from the inner side of the connecting groove 13, the connecting block 3 loses its limit. At this time, the first spring 103 will use its accumulated elastic force to push the moving block 101 to separate the connecting block 3 from the fixing frame 4, thus completing the disassembly of the protective shell 2. When the protective shell 2 needs to be installed, first align the connecting block 3 with the fixing frame 4, and then push the connecting block 3 into its inner side. As the connecting block 3 gradually moves, the moving block 101 is pushed backwards, compressing the first spring 103. At the same time, since the locking rod 12 cannot move laterally, one end will gradually slide towards the high point of the inclined groove 102. When the connecting groove 13 reaches below the locking rod 12, the second spring 142 will drive the locking rod 12 to move downward through the fixing block 141 and fall into the connecting groove 13, so that the connecting block 3 is fixed and the installation of the protective shell 2 is completed. When it is necessary to add lubrication to the striking structure, first turn the sealing cover 152 to open the oil storage box 151, and then inject lubricating oil into the oil storage box 151. Under the action of gravity, the lubricating oil flows into the oil guide ring 162 through the connecting pipe 161. Since the diameter of the oil leakage hole 17 is small, the lubricating oil will gradually fall into the surface of the striking structure. The setting of multiple sets of oil leakage holes 17 allows the lubricating oil to cover multiple key parts of the striking structure. Each oil leakage hole 17 is responsible for delivering lubricating oil to a specific area to ensure that the entire striking structure is fully lubricated.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A striking structure for an impact-type gas trigger, characterized in that, include: The main body of the air blower (1) is provided with a protective shell (2) on the outside of the main body of the air blower (1). Two sets of connecting blocks (3) are fixedly connected to the outside of the protective shell (2). Two sets of fixing brackets (4) are fixedly connected to the outside of the main body of the air blower (1). The rotor (5) is located inside the main body (1) of the air plate machine. An impact sleeve (6) is snapped onto the outside of the rotor (5). Two impact blocks (7) are detachably installed on the inside of the impact sleeve (6). A main shaft (8) is provided on the outside of the impact sleeve (6). Positioning components (9) are provided on the outside of the connecting block (3), and there are two sets. A moving component (10) is provided on the inside of the fixing frame (4), and a guide component (11) is provided on the outside of the moving component (10). The locking rod (12) slides on the inner wall of the fixing frame (4), the inner wall of the connecting block (3) is provided with a connecting groove (13), and a reset component (14) is provided on the outer side of the locking rod (12). A storage component (15) is disposed on the outside of the protective shell (2). A connecting component (16) for conveying lubricating oil is disposed on the outside of the storage component (15). A plurality of oil leakage holes (17) are disposed on the outside of the connecting component (16).

2. The striking structure of an impact-type gas trigger according to claim 1, characterized in that: The positioning component (9) includes a positioning block (91) fixed on the outside of the connecting block (3), and a fixing groove (92) is provided on the inner wall of the fixing frame (4). The outer side of the positioning block (91) is engaged with the inner side of the fixing groove (92).

3. The striking structure of an impact-type gas trigger according to claim 1, characterized in that: The moving component (10) includes a first spring (103) fixed inside the fixed frame (4), and a moving block (101) is fixedly connected to the other end of the first spring (103). An oblique groove (102) is provided on the top of the moving block (101).

4. The striking structure of an impact-type gas trigger according to claim 3, characterized in that: The guide assembly (11) includes a guide block (111) fixed to the bottom of the moving block (101), and a limiting groove (112) is provided on the inner wall of the fixing frame (4). The outer side of the guide block (111) is slidably connected to the inner wall of the limiting groove (112).

5. The striking structure of an impact-type gas trigger according to claim 1, characterized in that: The reset assembly (14) includes a fixing block (141) fixed to the outside of the locking rod (12), a second spring (142) is sleeved on the outside of the locking rod (12), and a handle (143) is fixedly connected to one end of the locking rod (12).

6. The striking structure of an impact-type gas trigger according to claim 1, characterized in that: The storage component (15) includes an oil storage box (151) fixed to the outside of the protective shell (2), and a sealing cap (152) is threadedly connected to the top of the oil storage box (151).

7. The striking structure of an impact-type gas trigger according to claim 6, characterized in that: The connecting assembly (16) includes a connecting pipe (161) connected to the bottom of the oil storage box (151), and the other end of the connecting pipe (161) is connected to an oil guide ring (162). The bottom of the oil guide ring (162) is connected to a plurality of oil leakage holes (17).

Images