Handheld air hammer

Abstract

The invention discloses a handheld air hammer which comprises a valve body, an air pipe connector arranged at the head end of the valve body and used for being connected with an external air source, an air cylinder assembly arranged at the tail end of the valve body, a punching needle assembly arranged at the end of the air cylinder assembly and a control adjusting assembly arranged on the valve body. The control adjusting assembly controls the valve body to be opened, and after air is supplied through the air pipe connector, the air cylinder assembly operates and pushes the punching needle assembly to work. The punching needle assembly comprises a punching needle supporting nozzle, a punching needle connecting piece arranged in the punching needle supporting nozzle and a punching head arranged on the punching needle connecting piece, the punching needle connecting piece enables the punching head to be connected with the air cylinder assembly, and the air cylinder assembly can punch the punching head out of the punching needle supporting nozzle to work. The punching needle assembly composed of the punching needle supporting nozzle, the punching needle connecting piece and the punching head impacts a workpiece under the action of the air cylinder assembly, and the purposes that the structure of the handheld air hammer is optimized, carrying is convenient, and a user can operate the handheld air hammer conveniently are achieved.

Description

Technical Field

[0001] The invention relates to the field of production and application of impact tools, and in particular to a handheld air hammer. Background Art

[0002] In the prior art, air hammer is a common equipment in the stamping production process. Most of them are impact-type structures, which are used to clean materials and prevent powder from adhering, blocking and bridging in pipelines, hoppers and silos. However, most traditional structures are complex and relatively cumbersome to operate, which is not conducive to control and carrying.

[0003] At present, there is an urgent need to provide a handheld air hammer that is small in size, easy to carry and easy to operate.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology 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 those skilled in the art. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes a handheld air hammer to achieve the purpose of optimizing the structure of the handheld air hammer, making it easy to carry and convenient for users to operate.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] A handheld air hammer comprises a valve body, an air pipe joint arranged at the head end of the valve body and used for connecting to an external air source, a cylinder assembly arranged at the tail end of the valve body, a punch needle assembly arranged at the end of the cylinder assembly, and a control and adjustment assembly arranged on the valve body, wherein the control and adjustment assembly controls the valve body to open, and after air is supplied by the air pipe joint, the cylinder assembly operates and pushes the punch needle assembly to work;

[0008] The punch needle assembly includes a punch needle nozzle, a punch needle connector arranged in the punch needle nozzle and a punch arranged on the punch needle connector. The punch needle connector connects the punch to the cylinder assembly so that the cylinder assembly can work to punch the punch out of the punch needle nozzle.

[0009] The invention uses a punch needle assembly composed of a punch needle support nozzle, a punch needle connector and a punch head to impact a workpiece under the action of a cylinder assembly, thereby achieving the purpose of optimizing the structure of a handheld air hammer, facilitating carrying and facilitating operation by a user.

[0010] It is further worth noting that a valve core mounting screw is provided in the valve body, a matching valve core is mounted on the valve core mounting screw, and the valve core is mounted in the valve core mounting screw via a spring.

[0011] It is further worth noting that the control and adjustment component includes a starting pressure plate, the head end of which is mounted on the valve body through a cotter pin. The starting pressure plate can apply pressure to the valve core inward, squeeze the valve core inward, and thus open the valve body.

[0012] It is further worth noting that a hook is provided on the starting pressure plate, and the end of the hook is mounted on the end of the cotter pin and can rotate around the cotter pin. The existence of the hook can facilitate the portable use of the handheld air hammer.

[0013] It is further worth noting that the cylinder assembly includes a cylinder fixing sleeve and a cylinder disposed in the cylinder fixing sleeve, the cylinder fixing sleeve is threadedly connected to the bottom end of the valve body, and the cylinder is installed in the cylinder fixing sleeve through a cylinder adapter.

[0014] It is further worth noting that a stud with a hollow interior is provided on the top of the punch needle support nozzle, and the stud is threadedly connected to the bottom of the cylinder fixing sleeve.

[0015] It is further worth noting that a distance adjustment nut is also provided on the stud at the top of the punch needle nozzle, and the distance adjustment nut can adjust the expansion distance of the punch needle nozzle.

[0016] It is further worth noting that the bottom of the punch needle connector is provided with a groove for mounting the punch, and the head end of the punch is provided with a protrusion that matches the groove.

[0017] It is further worth noting that a thread groove is provided on the top of the punch needle connector, and the head end of the cylinder is threadably matched with the thread groove.

[0018] The present invention has the following advantages:

[0019] 1. The present invention uses a punch needle assembly consisting of a punch needle support nozzle, a punch needle connector and a punch head to impact the workpiece under the action of a cylinder assembly, thereby achieving the purpose of optimizing the structure of a handheld air hammer, facilitating carrying and facilitating user operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0021] Figure 1 It is a structural schematic diagram of a handheld air hammer disclosed in an embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of an explosion of a handheld air hammer disclosed in an embodiment of the present invention;

[0023] The numbers and letters in the figure represent the corresponding component names:

[0024] 1. Valve body 2. Air pipe joint 3. Cylinder assembly 31. Cylinder fixing sleeve 32. Cylinder 33. Cylinder adapter

[0025] 4. Punch needle assembly 41. Punch needle nozzle 42. Punch needle connector 43. Punch head 44. Stud

[0026] 45. Distance adjustment nut 46. Groove 47. Protrusion 48. Punch needle fixing nut 5. Control adjustment component

[0027] 51. Start pressure plate 52. Split pin 6. Valve core mounting screw 7. Valve core 8. Hook 9. Spring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] The present invention provides a hand-held air hammer, whose working principle is that a punch needle assembly composed of a punch needle support nozzle, a punch needle connector and a punch head produces an impact on a workpiece under the action of a cylinder assembly, thereby achieving the purpose of optimizing the structure of the hand-held air hammer, facilitating carrying and facilitating user operation.

[0030] The present invention is further described in detail below with reference to examples and specific implementation modes.

[0031] like Figure 1 and Figure 2 As shown, a handheld air hammer includes a valve body 1, an air pipe joint 2 arranged at the head end of the valve body and used for connecting to an external air source, a cylinder assembly 3 arranged at the tail end of the valve body, a punch needle assembly 4 arranged at the end of the cylinder assembly and a control and adjustment assembly 5 arranged on the valve body. The control and adjustment assembly controls the valve body to open, and after air is supplied by the air pipe joint, the cylinder assembly runs and pushes the punch needle assembly to work.

[0032] A valve core mounting screw 6 is provided in the valve body, an adapted valve core 7 is mounted on the valve core mounting screw, and the valve core is mounted in the valve core mounting screw via a spring 9.

[0033] The cylinder assembly includes a cylinder fixing sleeve 31 and a cylinder 32 arranged in the cylinder fixing sleeve. The cylinder fixing sleeve is threadedly connected to the bottom end of the valve body. The cylinder is installed in the cylinder fixing sleeve through a cylinder adapter 33.

[0034] The control and adjustment assembly includes a start-up pressure plate 51, the head end of which is mounted on the valve body through a split pin 52, and the start-up pressure plate can press the valve core inward, squeezing the valve core inward to open the valve body. The start-up pressure plate is provided with a hook 8, the end of which is mounted on the end of the split pin and can rotate around the split pin.

[0035] The punch needle assembly includes a punch needle nozzle 41, a punch needle connector 42 arranged in the punch needle nozzle, and a punch 43 arranged on the punch needle connector. The punch needle connector connects the punch to the cylinder assembly so that the cylinder assembly can work to punch the punch out of the punch needle nozzle. The top of the punch needle nozzle is provided with an internal hollow stud 44, and the stud is threadedly connected to the bottom of the cylinder fixing sleeve. A distance adjustment nut 45 is also provided on the stud at the top of the punch needle nozzle, and the distance adjustment nut can adjust the expansion distance of the punch needle nozzle. The bottom of the punch needle connector is provided with a groove 46 for installing the punch, and the head end of the punch is provided with a protrusion 47 that matches the groove. A threaded groove is provided on the top of the punch needle connector, and the head end of the cylinder is threadedly matched with the threaded groove and fixedly installed by a punch needle fixing nut 48.

[0036] The specific use steps of the present invention are as follows: Figure 1 and Figure 2 As shown, in actual use, the staff holds the cylinder fixing sleeve, presses the starting pressure plate 51 with the thumb, and presses the valve core 7 inward. At this time, the valve body 1 opens, and the cylinder 32 starts to work while the air pipe joint continuously supplies air, and extends the punch 43 from the punch needle nozzle through the punch needle connector 42 to process the workpiece. When the staff releases the pressure on the starting pressure plate 51, the valve core 7 returns to its initial position under the action of the spring 9 and closes the valve body. At this time, the cylinder contracts and retracts the punch 43 into the punch needle nozzle 41.

[0037] At the same time, the existence of the distance adjustment nut 45 can realize the adjustment of the distance during punch processing to meet the processing requirements of multiple sizes.

[0038] In order to ensure the performance of the entire equipment, sealing rings are set at each joint to ensure the overall sealing of the device.

[0039] Through the above method, a hand-held air hammer provided by the present invention, through the punch needle assembly composed of a punch needle support nozzle, a punch needle connector and a punch, produces an impact on the workpiece under the action of the cylinder assembly, thereby achieving the purpose of optimizing the structure of the hand-held air hammer, facilitating carrying and facilitating user operation.

[0040] The above is only a preferred embodiment of a handheld air hammer disclosed in the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all fall within the protection scope of the present invention.

Claims

1. A handheld air hammer, characterized in that: It comprises a valve body, an air pipe joint arranged at the head end of the valve body and used for connecting to an external air source, a cylinder assembly arranged at the tail end of the valve body, a punch needle assembly arranged at the end of the cylinder assembly, and a control and adjustment assembly arranged on the valve body, wherein the control and adjustment assembly controls the valve body to open, and after air is supplied by the air pipe joint, the cylinder assembly operates and pushes the punch needle assembly to work; The punch needle assembly includes a punch needle nozzle, a punch needle connector arranged in the punch needle nozzle and a punch arranged on the punch needle connector. The punch needle connector connects the punch to the cylinder assembly so that the cylinder assembly can work to punch the punch out of the punch needle nozzle.

2. A handheld air hammer according to claim 1, characterized in that: A valve core mounting screw is arranged in the valve body, a matching valve core is mounted on the valve core mounting screw, and the valve core is mounted in the valve core mounting screw via a spring.

3. A handheld air hammer according to claim 2, characterized in that: The control and adjustment component includes a starting pressure plate, the head end of which is mounted on the valve body through a cotter pin. The starting pressure plate can apply pressure to the valve core inward, squeeze the valve core inward, and thus open the valve body.

4. A handheld air hammer according to claim 3, characterized in that: The starting pressure plate is provided with a hook.

5. A handheld air hammer according to claim 1, characterized in that: The cylinder assembly includes a cylinder fixing sleeve and a cylinder arranged in the cylinder fixing sleeve. The cylinder fixing sleeve is threadedly connected to the bottom end of the valve body. The cylinder is installed in the cylinder fixing sleeve through a cylinder adapter.

6. A handheld air hammer according to claim 5, characterized in that: A stud with a hollow interior is arranged on the top of the punch needle support nozzle, and the stud is threadedly connected to the bottom of the cylinder fixing sleeve.

7. A handheld air hammer according to claim 6, characterized in that: A distance adjustment nut is also provided on the stud at the top of the punch needle nozzle, and the distance adjustment nut can adjust the expansion distance of the punch needle nozzle.

8. A handheld air hammer according to claim 5, characterized in that: The bottom of the punch needle connector is provided with a groove for mounting the punch, and the head end of the punch is provided with a protrusion matched with the groove.

9. A handheld air hammer according to claim 8, characterized in that: A thread groove is arranged on the top of the punch needle connector, and the head end of the cylinder is threadably matched with the thread groove.

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