Handheld air artery breaking-through device

Abstract

The utility model discloses a handheld air artery breaking-through device which comprises a body, a high-pressure piston body installed in a high-pressure cavity at the rear end of the center of the body, a breaking-through acting body installed in the center of a fixator, a spring installed at the rear end of the breaking-through acting body, a high-pressure plug installed at the rear end of the high-pressure piston body, and a switch lifting handle installed above the body. During forcible entry operation, the control switch is directly pressed, high-pressure gas at the rear portion of the high-pressure piston body is instantly released, the front portion of the high-pressure cavity is rapidly opened, the high-pressure gas in the high-pressure cavity rapidly enters the high-pressure gas channel and pushes the forcible entry acting body to rapidly move forwards for forcible entry, and meanwhile the spring is compressed; when the rear end face of the forcible entry acting body crosses over the exhaust hole, the high-pressure gas at the rear part is released from the exhaust hole, the forcible entry acting body moves backwards under the action of the spring until the forcible entry acting body returns to the original position, the control switch is released to inflate again, so that the high-pressure piston body moves forwards, and the device returns to the to-be-fired state.

Description

Technical Field

[0001] The utility model belongs to the technical field of emergency rescue, and particularly relates to a handheld pneumatic artery breaking and demolishing device. Background Technique

[0002] In emergency rescue, quickly and effectively demolishing obstacles is the key to rescue operations. For example, it is necessary to demolish obstacles such as doors, windows, wooden boards, and walls. However, traditional demolition tools, such as crowbars, hammers, axes, etc., usually require a large amount of physical strength, have low efficiency, and the demolition effect is unstable. These traditional tools not only have low use efficiency but also easily pose safety risks to operators. Therefore, it is particularly necessary to develop new demolition devices to improve the efficiency of rapid rescue.

[0003] Currently, existing demolition devices generally use electricity or hydraulics as the driving force to achieve demolition. Electric demolition devices mainly supply power through built-in or external power sources to make the demolition tool head rotate to achieve the purpose of demolishing obstacles. Although this device can accurately control the demolition force, it seriously relies on power supply or battery power, has a large volume and weight, and low endurance, making it difficult to meet the requirements of long-term handheld demolition work. Hydraulic demolition devices mainly generate huge forces through hydraulic systems for demolition. Although this device has a large demolition force, is strong and durable, and suitable for long-term work, it has a large weight, poor portability, complex pipelines, high maintenance costs, low efficiency, and it is difficult to start in cold environments with hydraulic oil, and is not suitable for rapid emergency rescue scenarios. Content of the Utility Model

[0004] The purpose of the utility model is to provide a handheld pneumatic artery breaking and demolishing device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A handheld pneumatic artery breaking and demolishing device, comprising:

[0006] A body, a high-pressure piston body is installed inside the high-pressure chamber at the center rear end of the body, a fixer is installed at the front end of the body, a demolition action body is installed at the center of the fixer, a spring is installed at the rear end of the demolition action body, a high-pressure plug is installed at the rear end of the high-pressure piston body, a switch handle is installed above the body. Through the instantaneous release of the high-pressure gas at the rear of the high-pressure piston body, under the high pressure inside the high-pressure chamber, the high-pressure piston body is driven to move quickly backward, so that the front part of the high-pressure chamber is quickly opened, so that the high-pressure gas inside the high-pressure chamber quickly enters the high-pressure gas channel on one side of the high-pressure chamber and pushes the demolition action body to move quickly forward.

[0007] Preferably, the body includes a demolition cavity, a fixture interface, an exhaust hole, an air inlet hole, and a high-pressure chamber tail screw interface. The demolition cavity is a cylindrical cavity and is arranged inside the front end of the body for placing the rod-shaped part of the demolition body. The fixture interface is arranged at the front end of the body, and the fixture is installed on the surface of the fixture interface. The exhaust hole is arranged on the surface of the body and is connected to the demolition cavity for quickly releasing the pressure after the subsequent high-pressure pulse gas action. The air inlet hole is arranged on the surface of the body and is connected to the high-pressure chamber for transporting compressed gas. The high-pressure chamber tail screw interface is arranged at the rear end of the body and is located inside the high-pressure chamber, and the high-pressure chamber tail screw interface is screwed and fixed with the high-pressure screw plug.

[0008] Preferably, the high-pressure piston body includes a piston rod, a sealing end face, a rear piston body, a gas guide hole, and a check valve. The piston rod is a long rod shape and is arranged inside the high-pressure chamber for connecting components and transmitting power. The sealing end face is connected to one end of the piston rod for maintaining the airtightness of the high-pressure chamber and preventing gas leakage. A support body is arranged on the bottom surface of the sealing end face for quickly releasing high-pressure gas. Two groups of internal gas guide holes are arranged on the surface of the piston rod in a circumferential manner for evenly distributing high-pressure gas to ensure that the gas pressure is uniformly distributed on the rear piston body. The rear piston body is connected to the piston rod for transmitting the power of the piston rod to the demolition body. Two groups of sealing rings are arranged on the surface of the rear piston body for forming a dynamic sealing structure to prevent high-pressure gas leakage. A positioning ring is also arranged on the surface of the rear piston body for limiting the cut-off position of the rear piston body moving backward during the air release process and keeping the intake channel space always existing. The gas guide hole is arranged inside the piston rod and cooperates with the air inlet hole to form an inflation channel for compressed gas for transporting high-pressure gas into the high-pressure chamber. The check valve is arranged inside the gas guide hole for unidirectional conduction to allow high-pressure gas to enter the high-pressure chamber and prevent reverse leakage from the inflation channel.

[0009] Preferably, the demolition body includes a connecting rod, a sealing ring groove, and a demolition head. The middle part of the connecting rod is a reduced-diameter slender rod, and the demolition head is connected to one end of the connecting rod. The spring is sleeved on the surface of the connecting rod, and the two ends of the spring are respectively connected to the connecting rod and the fixture. The sealing ring groove is arranged on the surface of the connecting rod for installing a sealing ring to form a dynamic sealing structure. The structure and shape of the demolition head are diverse for different demolition scenarios.

[0010] Preferably, the switch handle includes a handle, a control switch, a gas channel, and a gas quick-connect interface. The handle is connected to the surface of the body for hand operation, facilitating the rescuer to hold or lift by hand. The control switch is arranged on the bottom surface of the handle, and the control switch is preferably set as a push-type self-resetting two-position three-way switch for respectively and simultaneously controlling the inflation channel and the deflation channel.

[0011] Preferably, the gas channel is arranged in the carrying handle and the bottom of the gas channel is connected to the air inlet hole, which is used to connect the external high-pressure gas source and the internal high-pressure chamber. The gas quick-plug interface is arranged at the top of the gas channel, and adopts a quick-plug interface structure with a check valve for quick access and replacement of the high-pressure gas source. The high-pressure screw plug adopts an imperial sealing thread structure for sealing to prevent high-pressure gas from leaking from the tail end. The spring is used to provide a reset force to ensure that after the high-pressure gas is released, the high-pressure piston body or the demolition body can quickly return to the initial position to prepare for the next demolition.

[0012] Compared with the prior art, the utility model has the following beneficial effects: when in use, the device is held in hand, the fixer is placed near the breaking point and fixed firmly, the breaking head is aimed at the breaking point, or the body is used to support the rear of the device for auxiliary fixing, and an external high-pressure gas source is connected to the gas quick-plug interface, then the device automatically completes high-pressure inflation, and during the breaking operation, the control switch is directly pressed, and the high-pressure gas at the rear of the high-pressure piston body is instantly released. Under the action of the high pressure inside the high-pressure chamber, the high-pressure piston body quickly moves backwards, so that the front of the high-pressure chamber is quickly opened, and the high pressure inside the high-pressure chamber is opened. The compressed gas quickly enters the high-pressure gas channel and pushes the demolition effector to move forward quickly for demolition. At the same time, the spring is compressed until the rear end face of the demolition effector passes over the exhaust hole. The high-pressure gas at the rear is released from the exhaust hole, and the demolition effector moves backward under the action of the spring until it returns to its original position. Release the control switch to inflate it again, causing the high-pressure piston body to move forward, and the device returns to the ready-to-fire state. The device utilizes the combination of high-pressure gas expansion work and a quick-opening valve to quickly generate impact force, which not only reduces the rescuer's physical strength but also improves the demolition efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the utility model where the demolition head moves out of the fixture;

[0015] Figure 3 This is a schematic diagram of the structure of the high-pressure piston body of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the utility model body;

[0017] Figure 5 It is a structural schematic diagram of the demolition action body of the utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the switch handle of the utility model;

[0019] Figure 7 It is a front view of the support body of the utility model.

[0020] In the figure: 1. Body; 101. High-pressure chamber; 102. Demolition body chamber; 103. High-pressure gas passage; 104. Fixer interface; 105. Exhaust hole; 106. Intake hole; 107. High-pressure chamber tail screw interface;

[0021] 2. High-pressure piston body; 201. Piston rod; 202. Sealing end face; 203. Support body; 204. Inner gas guide hole; 205. Rear piston body; 206. Sealing ring; 207. Positioning ring; 208. Gas guide hole; 209. Check valve;

[0022] 3. Demolition action body; 301. Connecting rod; 302. Sealing ring groove; 303. Demolition head;

[0023] 4. Switch handle; 401. Handle; 402. Control switch; 403. Gas passage; 405. Gas quick-connect interface;

[0024] 5. Fixer; 6. High-pressure screw plug; 7. Spring. Specific implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The present invention provides a Figure 1-7 handheld pneumatic artery-breaking demolition device as shown in the figure, including:

[0027] Body 1, inside the high-pressure chamber 101 at the center rear end of the body 1 is installed a high-pressure piston body 2, at the front end of the body 1 is installed a fixer 5, inside the center of the fixer 5 is installed a demolition action body 3, at the rear end of the demolition action body 3 is installed a spring 7, at the rear end of the high-pressure piston body 2 is installed a high-pressure screw plug 6, above the body 1 is installed a switch handle 4. Through the instantaneous release of high-pressure gas at the rear of the high-pressure piston body 2, under the high pressure inside the high-pressure chamber 101, the high-pressure piston body 2 is driven to move quickly backward, so that the front part of the high-pressure chamber 101 is quickly opened, so that the high-pressure gas inside the high-pressure chamber 101 quickly enters the high-pressure gas passage 103 on one side of the high-pressure chamber 101 and pushes the demolition action body 3 to move quickly forward.

[0028] The main body 1 includes a demolition body chamber 102, a fixture interface 104, an exhaust hole 105, an air inlet hole 106 and a high-pressure chamber tail screw interface 107. The demolition body chamber 102 is a cylindrical cavity and is arranged in the front end of the main body 1, and is used to place the rod-shaped part of the demolition action body 3. The fixture interface 104 is arranged at the front end of the main body 1 and the fixture 5 is installed on the surface of the fixture interface 104. The exhaust hole 105 is arranged on the surface of the main body 1 and the exhaust hole 105 is connected to the demolition body chamber 102, which is used to quickly release the pressure after the subsequent high-pressure pulse gas action is completed. The air inlet hole 106 is arranged on the surface of the main body 1 and is connected to the high-pressure chamber 101, which is used to transport compressed gas. The high-pressure chamber tail screw interface 107 is arranged at the rear end of the main body 1 and is located in the high-pressure chamber 101. The high-pressure chamber tail screw interface 107 is screwed and fixed to the high-pressure screw plug 6.

[0029] The high-pressure piston body 2 includes a piston rod 201, a sealing end face 202, a rear piston body 205, an air guide hole 208 and a check valve 209. The piston rod 201 is in the shape of a long rod and is arranged in the high-pressure chamber 101 for connecting components and transmitting power. The sealing end face 202 is connected to one end of the piston rod 201 for maintaining the sealing of the high-pressure chamber 101 and preventing gas leakage. A support body 203 is provided on the bottom surface of the sealing end face 202 for quickly releasing high-pressure gas. Two groups of inner air guide holes 204 are provided on the surface of the piston rod 201 with multiple annular holes for evenly distributing high-pressure gas to ensure that the gas pressure is uniformly distributed on the rear piston body 205. The rear piston body 205 is connected to the piston rod 201 for The power of the piston rod 201 is transmitted to the demolition action body 3. The surface of the rear piston body 205 is provided with two sets of sealing rings 206, preferably annular fluorine-containing wear-resistant sealing rings, which are used to form a dynamic sealing structure to prevent leakage of high-pressure gas. The surface of the rear piston body 205 is also provided with a positioning ring 207, which is used to limit the cut-off position of the rear piston body 205 moving backward during the deflation process, so as to keep the air intake channel space always exist. The air guide hole 208 is provided in the piston rod 201 and cooperates with the air intake hole 106 to form an inflation channel for compressed gas, which is used to transport high-pressure gas into the high-pressure chamber 101. The check valve 209 is provided in the air guide hole 208, which is used for unidirectional conduction so that the high-pressure gas enters the high-pressure chamber 101 without reverse leakage from the inflation channel.

[0030] The cross section of the front support body 203 is as follows: Figure 4 As shown, its outer diameter is the same as the inner diameter of the high pressure chamber 101 and the clearance fit is ( Figure 4 The front support body 203 is provided with a plurality of arc grooves or open key grooves along the annular direction ( Figure 4 Part B in the figure serves as a flow channel for rapid release of high-pressure gas.

[0031] The rescue action body 3 includes a connecting rod 301, a sealing ring groove 302 and a rescue head 303. The middle part of the connecting rod 301 is a slender rod with a reduced diameter and the rescue head 303 is connected to one end of the connecting rod 301. The spring 7 is sleeved on the surface of the connecting rod 301 and the two ends of the spring 7 are respectively connected to the connecting rod 301 and the fixer 5. The sealing ring groove 302 is provided on the surface of the connecting rod 301. The sealing ring groove 302 is used to install a sealing ring to form a dynamic sealing structure. The rescue head 303 has various structures and shapes and is used in different rescue scenes.

[0032] The switch handle 4 includes a handle 401, a control switch 402, a gas channel 403 and a gas quick-connect interface 405. The handle 401 is connected to the surface of the body 1 for hand-held operation, which is convenient for rescuers to hold or carry. The control switch 402 is arranged on the bottom surface of the handle 401 and is preferably arranged as a push-type self-resetting two-position three-way switch, which is used to control the inflation channel and the deflation channel respectively and simultaneously. When not pressed, the inflation channel is connected and the deflation channel is closed. When pressed, the inflation channel is closed and the deflation channel is connected.

[0033] The gas channel 403 is arranged in the handle 401 and the bottom of the gas channel 403 is connected to the air inlet 106, which is used to connect the external high-pressure gas source and the internal high-pressure chamber 101. The gas quick-plug interface 405 is arranged at the top of the gas channel 403, and adopts a quick-plug interface structure with a check valve for rapid access and replacement of the high-pressure gas source. The high-pressure screw plug 6 adopts an English sealing thread structure for sealing to prevent high-pressure gas from leaking from the tail end. The spring 7 is used to provide a reset force to ensure that after the high-pressure gas is released, the high-pressure piston body 2 or the demolition effector 3 can quickly return to the initial position to prepare for the next demolition.

[0034] First, assemble the high-pressure piston body 2, the demolition body 3, and the switch handle 4 respectively, then install the demolition body 3 and the spring 7 into the front end of the body 1 from front to back, tighten the fixer 5, install the switch handle 4 onto the body 1, install the high-pressure piston body 2 into the rear part of the body 1 from back to front, and finally tighten the high-pressure screw plug 6;

[0035] When in use, hold the device by hand, place the fixer 5 near the breaking point and fix it firmly, align the breaking head 303 with the breaking point, or use your body to press against the rear of the device to assist in fixing. Connect an external high-pressure gas source at the gas quick-connect interface 405, then the device automatically completes high-pressure inflation. During the breaking operation, directly press the control switch 402, and the high-pressure gas at the rear of the high-pressure piston body 2 is instantly released. Under the high pressure inside the high-pressure chamber 101, the high-pressure piston body 2 quickly moves backward, causing the front part of the high-pressure chamber 101 to quickly open. The high-pressure gas inside the high-pressure chamber 101 quickly enters the high-pressure gas passage 103 and pushes the breaking body 3 to move forward quickly for breaking. At the same time, the spring 7 is compressed until the rear end face of the breaking body 3 passes over the exhaust hole 105, and the high-pressure gas at the rear is released from the exhaust hole 105. The breaking body 3 moves backward under the action of the spring 7 until it returns to its original position. Release the control switch 402 and it will be inflated again, causing the high-pressure piston body 2 to move forward, and the device returns to the pre-firing state.

[0036] For this handheld pneumatic artery-breaking and demolishing device, first assemble the high-pressure piston body 2, the breaking body 3, and the switch handle 4 separately. Then, insert the breaking body 3 and the spring 7 into the front end of the main body 1 from front to back, tighten the fixer 5, install and fix the switch handle 4 on the main body 1, insert the high-pressure piston body 2 into the rear part of the main body 1 from back to front, and finally tighten the high-pressure plug 6. When in use, hold the device by hand, place the fixer 5 near the breaking point and fix it firmly, align the breaking head 303 with the breaking point, or use your body to press against the rear of the device to assist in fixing. Connect an external high-pressure gas source at the gas quick-connect interface 405, then the device automatically completes high-pressure inflation. The system state after inflation is as Figure 1 shown. During the breaking operation, directly press the control switch 402. At this time, the system state is as Figure 2 shown. The high-pressure gas at the rear of the high-pressure piston body 2 is instantly released. Under the high pressure inside the high-pressure chamber 101, the high-pressure piston body 2 quickly moves backward, causing the front part of the high-pressure chamber 101 to quickly open. The high-pressure gas inside the high-pressure chamber 101 quickly enters the high-pressure gas passage 103 and pushes the breaking body 3 to move forward quickly for breaking. At the same time, the spring 7 is compressed until the rear end face of the breaking body 3 passes over the exhaust hole 105, and the high-pressure gas at the rear is released from the exhaust hole 105. The breaking body 3 moves backward under the action of the spring 7 until it returns to its original position. Release the control switch 402 and it will be inflated again, causing the high-pressure piston body 2 to move forward, and the device returns to the pre-firing state. This device utilizes the combination of high-pressure gas expansion work and a quick-opening valve, can quickly generate impact force, not only reduces the physical strength of the rescuer but also improves the breaking efficiency. And it is designed to be handheld, which is convenient for carrying and operation. Using the spring 7 to achieve the reset function enables the device to be quickly recycled and improves the breaking efficiency;

[0037] Moreover, the structure and shape of the demolition head 303 of the device can be diverse. Different demolition heads 303 with different shapes and types can be replaced according to the actual demolition requirements in different scenarios. When continuous demolition is required, the control switch 402 can be repeatedly pressed and released to achieve continuous cyclic charging and discharging to realize continuous demolition actions.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A handheld pneumatic artery-breaking demolition device, characterized in that, Comprising: A body (1), inside the high-pressure chamber (101) at the center rear end of the body (1) is installed a high-pressure piston body (2), at the front end of the body (1) is installed a retainer (5), at the center of the retainer (5) is installed a demolition acting body (3), at the rear end of the demolition acting body (3) is installed a spring (7), at the rear end of the high-pressure piston body (2) is installed a high-pressure plug (6), above the body (1) is installed a switch handle (4). Through the instantaneous release of the high-pressure gas at the rear part of the high-pressure piston body (2), under the high pressure inside the high-pressure chamber (101), the high-pressure piston body (2) is driven to move rapidly backward, so that the front part of the high-pressure chamber (101) is rapidly opened, enabling the high-pressure gas inside the high-pressure chamber (101) to rapidly enter the high-pressure gas passage (103) on one side of the high-pressure chamber (101) and push the demolition acting body (3) to move rapidly forward.

2. The handheld pneumatic artery puncture and demolition device according to claim 1, characterized in that: The body (1) includes a demolition body chamber (102), a retainer interface (104), an exhaust hole (105), an air inlet hole (106) and a high-pressure chamber tail screw interface (107). The demolition body chamber (102) is a cylindrical cavity and is arranged inside the front end of the body (1) for placing the rod-shaped part of the demolition acting body (3). The retainer interface (104) is arranged at the front end of the body (1) and the retainer (5) is installed on the surface of the retainer interface (104). The exhaust hole (105) is arranged on the surface of the body (1) and the exhaust hole (105) is communicated with the demolition body chamber (102). The air inlet hole (106) is arranged on the surface of the body (1) and the air inlet hole (106) is communicated with the high-pressure chamber (101). The high-pressure chamber tail screw interface (107) is arranged at the rear end of the body (1) and is located inside the high-pressure chamber (101), and the high-pressure chamber tail screw interface (107) is screwed and fixed with the high-pressure plug (6).

3. The hand-held pneumatic artery-breaking demolition device according to claim 1, characterized in that: The high-pressure piston body (2) includes a piston rod (201), a sealing end face (202), a rear piston body (205), a gas guide hole (208) and a check valve (209). The piston rod (201) is in the shape of a long rod and is arranged inside the high-pressure chamber (101). The sealing end face (202) is connected to one end of the piston rod (201). At the bottom surface of the sealing end face (202) is provided a support body (203). On the surface of the piston rod (201) are provided two groups of inner gas guide holes (204). The rear piston body (205) is connected to the piston rod (201). On the surface of the rear piston body (205) are provided two groups of sealing rings (206). On the surface of the rear piston body (205) is also provided a positioning ring (207). The gas guide hole (208) is arranged inside the piston rod (201) and cooperates with the air inlet hole (106) to form an inflation channel for compressed gas. The check valve (209) is arranged inside the gas guide hole (208).

4. A handheld pneumatic artery-breaking demolition device according to claim 1, characterized in that: The demolition body (3) includes a connecting rod (301), a sealing ring groove (302) and a demolition head (303). The middle part of the connecting rod (301) is a reduced-diameter slender rod, and the demolition head (303) is connected to one end of the connecting rod (301). The spring (7) is sleeved on the surface of the connecting rod (301), and the two ends of the spring (7) are respectively connected to the connecting rod (301) and the fixator (5). The sealing ring groove (302) is arranged on the surface of the connecting rod (301).

5. The handheld pneumatic artery-breaking demolition device according to claim 1, characterized in that: The switch handle (4) includes a handle (401), a control switch (402), a gas channel (403) and a gas quick-connect interface (405). The handle (401) is connected to the surface of the body (1), and the control switch (402) is arranged on the bottom surface of the handle (401).

6. The hand-held pneumatic artery-breaking demolition device according to claim 5, characterized in that: The gas channel (403) is arranged in the handle (401), and the bottom of the gas channel (403) is connected to the air inlet hole (106). The gas quick-connect interface (405) is arranged at the top of the gas channel (403).

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