Impact door breaking hammer

Abstract

The utility model provides an impact door breaking hammer, relates to the technical field of fire rescue equipment, and solves the technical problems that a traditional door breaking hammer in the prior art is heavy in weight, large in size, strenuous in manual impact operation, not easy to carry, high in operation risk and low in rescue efficiency. The utility model provides an impact door-breaking hammer which comprises a pneumatic driving part, a fixed part and a sliding part, and the pneumatic driving part is used for providing compressed air to drive the sliding part to perform impact action; the air inlet end of the fixed part is connected with the pneumatic driving part, and the sliding part is slidably connected with the fixed part. Through the synergistic effect of the pneumatic driving part, the fixed part and the sliding part, the pneumatic driving part provides compressed gas to serve as a power source to drive the sliding part to rapidly and accurately complete the impact action along the fixed part, effective damage to a target obstacle is achieved, and compared with a traditional door breaking hammer, the door breaking hammer is lighter in weight, smaller in size, convenient to carry and capable of saving labor in operation; the rescue efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting and rescue equipment, in particular to an impact door-breaking hammer. Background Art

[0002] A door-breaking hammer is a demolition tool designed specifically for departments such as fire fighting and special police. It is mainly used to quickly break through structural obstacles such as doors and windows in emergency situations for rescue or mission execution.

[0003] The applicant of the present invention has found that the prior art has at least the following technical problems:

[0004] The design of traditional door-breaking hammers has defects. They are heavy, large in size, laborious to operate manually, not easy to carry, require multiple people to cooperate for handling, and manual impact use requires a great deal of effort. This not only increases the burden on rescue personnel but also may lead to operation errors, endangering the personal safety of rescue personnel and resulting in low rescue efficiency.

[0005] In view of this, the present utility model is particularly proposed. Content of the Utility Model

[0006] The purpose of the present utility model is to provide an impact door-breaking hammer to solve the technical problems existing in the prior art, such as the large weight, large volume, laborious manual impact operation, not easy to carry, high operation risk, and low rescue efficiency of traditional door-breaking hammers. The many technical effects that can be produced by the preferred technical solutions provided by the present utility model are described in detail below.

[0007] To achieve the above purpose, the present utility model provides the following technical solutions:

[0008] An impact door-breaking hammer provided by the present utility model includes a pneumatic drive part, a fixed part, and a sliding part. The pneumatic drive part is used to provide compressed gas to drive the sliding part to perform an impact action; the air inlet end of the fixed part is connected to the pneumatic drive part, and the sliding part is slidably connected to the fixed part.

[0009] Preferably, the fixed part includes a fixed cylinder, and the fixed cylinder has a first sliding channel and a first guiding channel that are communicated along the gas flow direction. The first end of the first sliding channel is communicated with the pneumatic drive part, and the second end of the first sliding channel is communicated with the first guiding channel;

[0010] The sliding part includes a sliding column, a sliding piston disk, and a hammer head. One end of the sliding column is connected to the sliding piston disk, and the other end is connected to the hammer head. The hammer head is located outside the fixed cylinder;

[0011] The sliding piston disc is sealingly and slidably arranged in the first sliding channel. A first exhaust hole is arranged on the first sliding channel and is located on the movement path of the sliding piston disc; the sliding column is slidably arranged in the first guiding channel.

[0012] Preferably, the air inlet end of the first sliding channel abuts against the sliding piston disc.

[0013] Preferably, the number of the first exhaust holes is multiple, and they are evenly arranged along the circumferential direction of the fixed cylinder.

[0014] Preferably, the fixing part includes a fixing column. One end of the fixing column is connected to the pneumatic driving part, and a fixing piston disc is arranged at the other end. The fixing column has a gas channel penetrating through it;

[0015] The sliding part includes a sliding cylinder and a hammer head. The sliding cylinder has a second guiding channel and a second sliding channel that are communicated along the gas flow direction. The fixing column is slidably arranged in the second guiding channel. The second sliding channel is communicated with the gas channel. The fixing piston disc is slidably arranged in the second sliding channel. A second exhaust hole is arranged on the second sliding channel. When the compressed gas drives the sliding cylinder to perform an impact action, the outside air is communicated with the gas channel through the second exhaust hole.

[0016] Preferably, the closed end of the second sliding channel abuts against the fixing piston disc.

[0017] Preferably, the number of the second exhaust holes is multiple, and they are evenly arranged along the circumferential direction of the sliding cylinder.

[0018] Preferably, the hammer head is in a disc-shaped structure and is screwed on the sliding column or the sliding cylinder.

[0019] Preferably, the pneumatic driving part includes an air storage tank and a buffer tank. The air storage tank is used for storing and discharging compressed gas. The air outlet end of the air storage tank is communicated with the air inlet end of the buffer tank. The air outlet end of the buffer tank is communicated with the air inlet end of the fixed cylinder or the fixing column, and a control valve is arranged at the air outlet end of the buffer tank.

[0020] Preferably, it further includes a handheld part. The handheld part includes a bracket and a handle. The end of the bracket is connected to the outer wall surface of the buffer tank. The handle is hingedly connected to the bracket. A micro switch is arranged on the buffer tank and is located on the movement path of the handle for controlling the opening or closing of the control valve.

[0021] The preferred technical solution of the present utility model can at least further produce the following technical effects:

[0022] The utility model effectively avoids the technical problems existing in the prior art, such as the traditional door-breaking hammer being heavy, large in volume, laborious to operate manually by impact, not easy to carry, having a high operation risk, and low rescue efficiency. The utility model provides an impact door-breaking hammer, which includes a pneumatic driving part, a fixing part and a sliding part. The pneumatic driving part is used to provide compressed gas to drive the sliding part to perform an impact action; the air inlet end of the fixing part is connected to the pneumatic driving part, and the sliding part is slidably connected to the fixing part. Through the synergistic effect of the pneumatic driving part, the fixing part and the sliding part, the pneumatic driving part provides compressed gas as a power source to drive the sliding part to quickly and accurately complete the impact action along the fixing part, realizing the effective destruction of the target obstacle. Compared with the traditional door-breaking hammer, it is lighter in weight and smaller in volume, easy to carry, labor-saving in operation, and has high rescue efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 FIG. 9 is a schematic structural diagram of the first impact door-breaking hammer provided by the present utility model;

[0025] Figure 2 FIG. 13 is a cross-sectional view of the fixing part and the sliding part of the first impact door-breaking hammer provided by the present utility model;

[0026] Figure 3 FIG. 17 is a schematic structural diagram of the second impact door-breaking hammer provided by the present utility model;

[0027] Figure 4 FIG. 21 is a cross-sectional view of the fixing part and the sliding part of the second impact door-breaking hammer provided by the present utility model.

[0028] In the figure:

[0029] 1. Fixed cylinder; 101. First sliding channel; 1011. First chamber; 1012. Second chamber; 102. First guiding channel; 103. First exhaust hole; 2. Sliding column; 3. Sliding piston disc; 4. Hammer head;

[0030] 5. Fixed column; 501. Gas channel; 6. Fixed piston disc; 7. Sliding cylinder; 701. Second sliding channel; 7011. Third chamber; 7012. Fourth chamber; 702. Second guiding channel; 703. Second exhaust hole;

[0031] 8. Gas storage tank; 9. Buffer tank; 10. Bracket; 1001. Vertical section; 1002. Horizontal section; 11. Handle; 1101. Gripping section; 1102. Driving section; 12. Microswitch; 13. Hand-held belt assembly. Detailed implementation mode

[0032] In order to make the purpose, technical solution and advantages of the present utility model clearer, the technical solution of the present utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other implementation manners obtained by those of ordinary skill in the art without creative work belong to the scope protected by the present utility model.

[0033] Embodiment 1:

[0034] As Figure 1 - Figure 2 shown, this embodiment provides an impact door-breaking hammer, including a pneumatic driving part, a fixing part and a sliding part. The pneumatic driving part is used to provide compressed gas to drive the sliding part to perform an impact action; the air inlet end of the fixing part is connected to the pneumatic driving part, and the sliding part is slidably connected to the fixing part.

[0035] The pneumatic driving part provides compressed gas as a power source to drive the sliding part to quickly and accurately complete the impact action along the fixing part, realizing the effective destruction of the target obstacle. Compared with the traditional door-breaking hammer, it is lighter in weight and smaller in volume, easy to carry, labor-saving in operation and high in rescue efficiency.

[0036] As an optional implementation manner, the fixing part includes a fixing cylinder 1. The fixing cylinder 1 has a first sliding channel 101 and a first guiding channel 102 that are communicated along the gas flow direction. The first end of the first sliding channel 101 is communicated with the pneumatic driving part, and the second end of the first sliding channel 101 is communicated with the first guiding channel 102;

[0037] The sliding part includes a sliding column 2, a sliding piston disk 3 and a hammer head 4. One end of the sliding column 2 is connected to the sliding piston disk 3, and the other end is connected to the hammer head 4. The hammer head 4 is located outside the fixing cylinder 1;

[0038] The sliding piston disk 3 is hermetically and slidably arranged in the first sliding channel 101. A first exhaust hole 103 is arranged on the first sliding channel 101, and the first exhaust hole 103 is located on the moving path of the sliding piston disk 3; the sliding column 2 is slidably arranged in the first guiding channel 102.

[0039] Furthermore, the inner diameter of the first sliding channel 101 is larger than the inner diameter of the first guiding channel 102.

[0040] The sliding piston disc 3 slides sealingly within the first sliding channel 101, dividing the first sliding channel 101 into a first chamber 1011 and a second chamber 1012. The first chamber 1011 communicates with the pneumatic driving part, and the second chamber 1012 communicates with the first guiding channel 102.

[0041] In the initial state, the sliding piston disc 3 sealingly abuts against the air inlet end of the first chamber 1011 to form a relatively enclosed space. At this time, the second chamber 1012 communicates with the outside through the first exhaust hole 103.

[0042] When the pneumatic driving part releases compressed gas, the compressed gas enters the first chamber 1011 and pushes the sliding piston disc 3 to move along the first sliding channel 101 towards the first guiding channel 102, driving the hammer head 4 to perform an impact action.

[0043] After the impact action is completed, the first chamber 1011 communicates with the outside through the first exhaust hole 103, and the residual compressed gas in the first chamber 1011 is discharged to the outside through the first exhaust hole 103, reducing the resistance when the sliding piston disc 3 returns to its original position and enabling it to return to the initial position more smoothly.

[0044] By manually pushing the hammer head 4, the sliding piston disc 3 is driven back to its original position, that is, it again sealingly abuts against the air inlet end of the first chamber 1011, waiting for the next impact operation.

[0045] As an optional implementation manner, the air inlet end of the first sliding channel 101 abuts against the sliding piston disc 3.

[0046] Furthermore, there is an abutment between the air inlet end of the first chamber 1011 and the sliding piston disc 3. When compressed gas enters the first chamber 1011, it can effectively and rapidly drive the sliding piston disc 3 to drive the hammer head 4 to perform an impact action.

[0047] As an optional implementation manner, the number of the first exhaust holes 103 is multiple, and they are uniformly arranged along the circumferential direction of the fixed cylinder 1.

[0048] The multiple first exhaust holes 103 can quickly release the gas in the first chamber 1011 when the sliding piston disc 3 returns to its original position, reducing the return resistance. The number of the first exhaust holes 103 can be set to four, five or more according to the usage requirements.

[0049] As an optional implementation manner, the hammer head 4 has a round cake-shaped structure and is screwed onto the sliding column 2.

[0050] The hammer head 4 has a round cake-shaped structure, which increases the contact area between the hammer head 4 and the obstacle. The impact force can be evenly distributed on the obstacle, and at the same time, the reaction force on the operator is reduced.

[0051] The hammer head 4 is screwed onto the sliding column 2, which improves the flexibility of use and facilitates the replacement and maintenance of the hammer head 4 in the later stage.

[0052] As an alternative embodiment, the pneumatic driving part includes an air storage tank 8 and a buffer tank 9. The air storage tank 8 is used to store compressed gas. The air outlet end of the air storage tank 8 is communicated with the air inlet end of the buffer tank 9. The air outlet end of the buffer tank 9 is communicated with the air inlet end of the fixed cylinder 1, and a control valve is arranged at the air outlet end of the buffer tank 9.

[0053] Furthermore, the air storage tank 8 is used to store compressed gas and provide a stable power air source. An exhaust valve, a pressure gauge and a safety valve are arranged on the air storage tank 8. The exhaust valve is used to control the release of the compressed gas in the air storage tank 8. When it is necessary to provide gas for the buffer tank 9, the exhaust valve is opened to allow the compressed gas to flow from the air storage tank 8 into the buffer tank 9. The pressure gauge is used to monitor the pressure in the air storage tank 8. The safety valve is used to automatically open and release the excess gas when the pressure in the air storage tank 8 exceeds the preset value. Among them, the air storage tank 8 with an exhaust valve, a pressure gauge and a safety valve is a prior art, and the specific structure will not be elaborated here.

[0054] The buffer tank 9 has a gas buffer chamber for storing and regulating compressed gas. The control valve is used to control the release of the compressed gas in the buffer tank 9 and adjust the flow rate and pressure.

[0055] The air outlet end of the buffer tank 9 is threadedly connected to the air inlet end of the fixed cylinder 1.

[0056] When an impact action needs to be performed, the control valve is opened to release the compressed gas in the buffer tank 9 into the first chamber 1011 at a preset flow rate and pressure. Among them, the buffer tank 9 with a control valve is a prior art, and the specific structure will not be elaborated here.

[0057] As an alternative embodiment, it further includes a handheld part. The handheld part includes a bracket 10 and a handle 11. The end of the bracket 10 is connected to the outer wall surface of the buffer tank 9. The handle 11 is hingedly connected to the bracket 10. A micro switch 12 is arranged on the buffer tank 9. The micro switch 12 is located on the moving path of the handle 11 and is used to control the opening or closing of the control valve.

[0058] Furthermore, the bracket 10 is of a U-shaped structure. The ends of the vertical sections 1001 are respectively connected to the outer wall surface of the buffer tank 9. A receiving cavity for receiving the handle 11 is formed on the horizontal section 1002.

[0059] A handheld belt assembly 13 is arranged on one of the vertical sections 1001 of the bracket 10, which is convenient for carrying.

[0060] The gripping section 1101 of the handle 11 is located outside the accommodation cavity. The operator squeezes the gripping section 1101 of the handle 11, causing the handle 11 to rotate around the hinge point, driving the driving section 1102 of the handle 11 to contact the microswitch 12. That is, when an impact action needs to be performed, the operator squeezes the gripping section 1101 of the handle 11 so that the driving section 1102 of the handle 11 triggers the microswitch 12, opening the control valve, and enabling the compressed gas in the buffer tank 9 to be released into the first chamber 1011 of the fixed cylinder 1 at a preset flow rate and pressure, driving the sliding piston disk 3 to drive the sliding column 2 and the hammer head 4 to move, and performing the impact action.

[0061] The gripping section 1101 of the handle 11 is connected to the accommodation cavity through a reset member. When the external force on the gripping section 1101 of the handle 11 is released, the handle 11 can automatically reset.

[0062] Embodiment 2:

[0063] As Figure 3 - As shown in FIG. 4, this embodiment provides another impact door-breaking hammer, including a pneumatic driving part, a fixing part, and a sliding part. The pneumatic driving part is used to provide compressed gas to drive the sliding part to perform an impact action; the air inlet end of the fixing part is connected to the pneumatic driving part, and the sliding part is slidably connected to the fixing part.

[0064] The pneumatic driving part provides compressed gas as a power source, driving the sliding part to quickly and accurately complete the impact action along the fixing part, realizing effective destruction of the target obstacle. Compared with the traditional door-breaking hammer, it is lighter in weight and smaller in volume, convenient to carry, labor-saving in operation, and has high rescue efficiency.

[0065] As an optional implementation manner, the fixing part includes a fixing column 5. One end of the fixing column 5 is connected to the pneumatic driving part, and a fixing piston disk 6 is arranged at the other end. The fixing column 5 has a gas passage 501 arranged in a penetrating manner;

[0066] The sliding part includes a sliding cylinder 7 and a hammer head 4. The sliding cylinder 7 has a second guiding channel 702 and a second sliding channel 701 that are connected in the gas flow direction. The fixing column 5 is slidably arranged in the second guiding channel 702. The second sliding channel 701 is connected to the gas passage 501. The fixing piston disk 6 is slidably arranged in the second sliding channel 701. A second exhaust hole 703 is arranged on the second sliding channel 701. When the compressed gas drives the sliding cylinder 7 to perform an impact action, the outside air is connected to the gas passage 501 through the second exhaust hole 703.

[0067] The fixing piston disk 6 is slidably matched with the second sliding channel 701, separating the second sliding channel 701 into a third chamber 7011 and a fourth chamber 7012. The third chamber 7011 is connected to the second guiding channel 702, and the fourth chamber 7012 is connected to the gas passage 501.

[0068] In the initial state, the fixed piston disk 6 is in sealing contact with the closed end of the fourth chamber 7012 to seal the outlet end of the gas passage 501. At this time, the third chamber 7011 communicates with the outside through the second exhaust hole 703.

[0069] When the pneumatic driving part releases compressed gas, the compressed gas enters the gas passage 501 and pushes the sliding cylinder 7 to move along the fixed column 5 away from the second guiding passage 702, driving the hammer head 4 to perform an impact action.

[0070] After the impact action is completed, the fourth chamber 7012 communicates with the outside through the second exhaust hole 703, and the residual compressed gas in the fourth chamber 7012 is discharged to the outside through the second exhaust hole 703, reducing the resistance when the sliding piston disk 3 returns to its original position, enabling it to return to the initial position more smoothly.

[0071] By manually pushing the hammer head 4, the sliding cylinder 7 is driven to return to its original position, that is, the closed end of the fourth chamber 7012 is again in sealing contact with the fixed piston disk 6 to seal the gas passage 501, waiting for the next impact operation.

[0072] As an optional implementation manner, the closed end of the second sliding passage 701 abuts against the fixed piston disk 6.

[0073] Furthermore, the closed end of the fourth chamber 7012 abuts against the fixed piston disk 6, and when compressed gas enters the gas passage 501, it can effectively and quickly drive the sliding cylinder 7 to drive the hammer head 4 to perform an impact action.

[0074] As an optional implementation manner, the number of the second exhaust holes 703 is multiple, and they are evenly arranged along the circumferential direction of the sliding cylinder 7.

[0075] The multiple second exhaust holes 703 can quickly release the gas in the fourth chamber 7012 when the sliding piston disk 3 returns to its original position, reducing the return resistance. The number of the second exhaust holes 703 can be set to four, five or more according to the usage requirements.

[0076] As an optional implementation manner, the hammer head 4 has a round cake-like structure and is screwed onto the sliding cylinder 7.

[0077] The hammer head 4 has a round cake-like structure, increasing the contact area between the hammer head 4 and the obstacle. The impact force can be evenly distributed on the obstacle, and at the same time, the reaction force on the operator is reduced.

[0078] The hammer head 4 is screwed onto the sliding cylinder 7, improving the usage flexibility and facilitating the later replacement and maintenance of the hammer head 4.

[0079] As an alternative embodiment, the pneumatic driving part includes an air storage tank 8 and a buffer tank 9. The air storage tank 8 is used for storing compressed gas. The air outlet end of the air storage tank 8 is communicated with the air inlet end of the buffer tank 9. The air outlet end of the buffer tank 9 is communicated with the air inlet end of the fixed column 5, and a control valve is arranged at the air outlet end of the buffer tank 9.

[0080] Furthermore, the air storage tank 8 is used for storing compressed gas to provide a stable power air source. An exhaust valve, a pressure gauge and a safety valve are arranged on the air storage tank 8. The exhaust valve is used for controlling the release of the compressed gas in the air storage tank 8. When gas needs to be provided for the buffer tank 9, the exhaust valve is opened to allow the compressed gas to flow from the air storage tank 8 into the buffer tank 9. The pressure gauge is used for monitoring the pressure in the air storage tank 8. The safety valve is used for automatically opening to release excess gas when the pressure in the air storage tank 8 exceeds a preset value. Among them, the air storage tank 8 with an exhaust valve, a pressure gauge and a safety valve is a prior art, and the specific structure is not described in detail here.

[0081] The buffer tank 9 has a gas buffer chamber for storing and regulating compressed gas. The control valve is used for controlling the release of the compressed gas in the buffer tank 9 and adjusting the flow rate and pressure.

[0082] The air outlet end of the buffer tank 9 is threadedly connected to the air inlet end of the fixed column 5.

[0083] When an impact action needs to be performed, the control valve is opened to release the compressed gas in the buffer tank 9 into the gas passage 501 at a preset flow rate and pressure. Among them, the buffer tank 9 with a control valve is a prior art, and the specific structure is not described in detail here.

[0084] As an alternative embodiment, it further includes a handheld part. The handheld part includes a bracket 10 and a handle 11. The end of the bracket 10 is connected to the outer wall surface of the buffer tank 9. The handle 11 is hingedly connected to the bracket 10. A microswitch 12 is arranged on the buffer tank 9. The microswitch 12 is located on the moving path of the handle 11 and is used for controlling the opening or closing of the control valve.

[0085] Furthermore, the bracket 10 is of a U-shaped structure. The ends of the vertical sections 100l are respectively connected to the outer wall surface of the buffer tank 9. An accommodation cavity for accommodating the handle 11 is formed on the horizontal section 1002.

[0086] A handheld belt assembly 13 is arranged on one of the vertical sections l00l of the bracket 10 for convenient carrying.

[0087] The holding section 1101 of the handle 11 is located outside the accommodation cavity. The operator squeezes the holding section 1101 of the handle 11, causing the handle 11 to rotate around the hinge point, driving the driving section 1102 of the handle 11 to contact the microswitch 12. That is, when an impact action needs to be performed, the operator squeezes the holding section 1101 of the handle 11 so that the driving section 1102 of the handle 11 triggers the microswitch 12, the control valve opens, and the compressed gas in the buffer tank 9 is released into the gas passage 501 at a preset flow rate and pressure, driving the sliding cylinder 7 to drive the hammer head 4 to move and perform the impact action.

[0088] The holding section 1101 of the handle 11 is connected to the accommodation cavity through a reset member. When the external force on the holding section 1101 of the handle 11 is removed, the handle 11 can automatically reset.

[0089] It can be understood that the same or similar parts in the above embodiments can be referred to each other, and the content not detailed in some embodiments can be referred to the same or similar content in other embodiments.

[0090] In the description of the present invention, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0091] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0092] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "an example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0093] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. An impact door-breaking hammer, characterized in that, It includes a pneumatic driving part, a fixing part and a sliding part. The pneumatic driving part is used to provide compressed gas to drive the sliding part to perform an impact action. The air inlet end of the fixing part is connected to the pneumatic driving part, and the sliding part is slidably connected to the fixing part. The fixing part includes a fixing cylinder, and the fixing cylinder has a first sliding channel and a first guiding channel that are communicated along the gas flow direction. The first end of the first sliding channel is communicated with the pneumatic driving part, and the second end of the first sliding channel is communicated with the first guiding channel. The sliding part includes a sliding column, a sliding piston disk and a hammer head. One end of the sliding column is connected to the sliding piston disk, and the other end is connected to the hammer head. The hammer head is located outside the fixing cylinder. The sliding piston disk is hermetically and slidably arranged in the first sliding channel. A first exhaust hole is arranged on the first sliding channel, and the first exhaust hole is located on the moving path of the sliding piston disk. The sliding column is slidably arranged in the first guiding channel.

2. The percussion door-breaker according to claim 1, wherein, The air inlet end of the first sliding channel abuts against the sliding piston disk.

3. The impact door-breaking hammer according to claim 1, characterized in that, The number of the first exhaust holes is multiple, and they are evenly arranged along the circumferential direction of the fixing cylinder.

4. The impact door-breaking hammer according to claim 1, wherein The fixing part includes a fixing column. One end of the fixing column is connected to the pneumatic driving part, and a fixing piston disk is arranged at the other end. The fixing column has a gas channel that penetrates through it. The sliding part includes a sliding cylinder and a hammer head. The sliding cylinder has a second guiding channel and a second sliding channel that are communicated along the gas flow direction. The fixing column is slidably arranged in the second guiding channel. The second sliding channel is communicated with the gas channel. The fixing piston disk is slidably arranged in the second sliding channel. A second exhaust hole is arranged on the second sliding channel. When the compressed gas drives the sliding cylinder to perform an impact action, the outside air is communicated with the gas channel through the second exhaust hole.

5. The impact door-breaking hammer according to claim 4, wherein The closed end of the second sliding channel abuts against the fixing piston disk.

6. The percussion door breaker according to claim 4, wherein, The number of the second exhaust holes is multiple, and they are evenly arranged along the circumferential direction of the sliding cylinder.

7. The percussion door-breaker according to claim 4, characterized in that, The hammer head is in a round cake-like structure and is screwed to the sliding column or the sliding cylinder.

8. The impact door-breaking hammer according to claim 3, characterized in that, The pneumatic driving part includes an air storage tank and a buffer tank. The air storage tank is used to store and release compressed gas. The air outlet end of the air storage tank is communicated with the air inlet end of the buffer tank. The air outlet end of the buffer tank is communicated with the air inlet end of the fixing cylinder or the fixing column, and a control valve is arranged at the air outlet end of the buffer tank.

9. The impact door-breaking hammer according to claim 8, wherein, It further includes a handheld part. The handheld part includes a bracket and a handle. The end of the bracket is connected to the outer wall surface of the buffer tank. The handle is hingedly connected to the bracket. A micro switch is arranged on the buffer tank, and the micro switch is located on the moving path of the handle and is used to control the opening or closing of the control valve.

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