Pneumatic forcible entry combination tool
By integrating a demolition head and a cutting shear into a pneumatic demolition combination tool, the problems of limited functionality and inconvenient replacement of traditional tools are solved, enabling rapid replacement and protective functions, and improving the operational efficiency and safety of emergency rescue.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU XUGONG ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional pneumatic demolition tools have limited functionality, are cumbersome to operate when changing to different sized demolition heads, require specialized tools for cutting, and lack protective measures to prevent objects from flying and injuring rescuers.
A pneumatic demolition tool combination was designed, which integrates a demolition head and a slitting shear. The demolition head can be quickly replaced through a quick-release structure, and the auxiliary structure provides a protective plate to prevent objects from splashing.
It enables rapid switching between demolition and shearing functions, and effectively prevents objects from splashing and injuring rescue personnel during operation.
Smart Images

Figure CN224166747U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of emergency rescue, specifically, it relates to a pneumatic demolition combination tool. Background Technology
[0002] Emergency rescue refers to the rapid and effective efforts made to save lives and property and guide the public in protecting themselves and reducing harm after a sudden incident, through predetermined rescue and relief methods.
[0003] Pneumatic demolition tools are indispensable in emergency rescue. They use compressed air to achieve shearing, breaking and demolition. However, traditional pneumatic demolition tools are often limited in their use. For example, demolition tools can only demolish, while shearing requires special cutting tools. Furthermore, changing demolition heads of different sizes is also quite troublesome.
[0004] In view of this, this utility model is proposed. Utility Model Content
[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:
[0006] A pneumatic demolition tool assembly, comprising:
[0007] The pneumatic gun body has a demolition head installed on the front wall and a cutting shear installed on the top.
[0008] The quick-release structure is located at the front end of the pneumatic gun body and is used to assemble the demolition head and the pneumatic gun body. The quick-release structure includes: a base, a cover plate, a connector, a mounting groove, a joint, and a connecting column. The base is fixedly connected to the front end of the pneumatic gun body, the cover plate is slidably connected to the wall of the base, the connector is fixedly connected to the front wall of the base, the mounting groove is opened at the top of the connector, the joint is snapped into the mounting groove, the connecting column is fixedly connected to the front wall of the joint, and the rear wall of the demolition head can be fixedly connected to the front wall of the connecting column.
[0009] In a preferred embodiment of this utility model, the base is a semi-capsule-shaped block with the arc surface of the base facing downwards, the cover plate is a rectangular plate with the bottom of the cover plate having an upward-facing concave arc surface, the connector is cylindrical, the mounting groove is a T-shaped groove, the connector can fit into the mounting groove, the top of the connector is an arc surface, the arc surface of the top of the connector can fit with the top of the connector, and the groove at the bottom of the cover plate can fit with the arc surface of the top of the connector.
[0010] In a preferred embodiment of this utility model, the quick-release structure further includes a groove, a limiting block, a spring, a straight groove, a handle, and a base plate. The groove is formed on the front wall of the base, the limiting block is symmetrically fixedly connected to the top two sides of the rear wall of the cover plate, the spring is fixedly connected in the groove, the straight groove is formed through the top of the base, the handle is fixedly connected to the top of the cover plate, and the base plate is fixedly connected to the bottom of the joint.
[0011] In a preferred embodiment of this utility model, the receiving groove is symmetrically provided with rectangular grooves adapted to slide the symmetrical limiting block. The receiving groove can be adapted to slide the cover plate. The limiting block is rectangular. The rear wall of the spring is fixedly connected in the receiving groove. The front end of the spring can abut against the rear wall of the cover plate. The straight groove is rectangular. The handle can slide along the straight groove. The handle is an inverted L-shaped block. The bottom plate is an arc plate. The top of the bottom plate can fit against the arc surface of the bottom of the connecting column.
[0012] In a preferred embodiment of this utility model, the front wall of the pneumatic gun body is further provided with an auxiliary structure, which includes: a fixing groove, a bolt, a protective plate, a side groove, and a plug. The fixing groove is opened through the top of the slitting shear, the bolt is threadedly connected to the top of the pneumatic gun body, the protective plate is symmetrically fixedly connected to both sides of the front wall of the pneumatic gun body, the side groove is opened through the side wall of the protective plate, and the plug is fixedly connected in the side groove on one side.
[0013] In a preferred embodiment of this utility model, the fixing groove is located at the center of the top of the slitting shear, and the top of the pneumatic gun body is provided with a threaded hole for a bolt, which can pass through the fixing groove. The protective plate is an arc-shaped plate, and the joint is located between symmetrical protective plates.
[0014] In a preferred embodiment of this utility model, the side groove is rectangular, the insert is a cylinder that can fit into the fixing groove, and the cutting shear can be placed horizontally in the symmetrical side groove.
[0015] Compared with the prior art, the present invention has the following advantages:
[0016] 1. By setting up a quick-release structure and using a dismantling head and slitting shears, both dismantling and cutting can be achieved, and replacement and dismantling can be completed quickly.
[0017] 2. By setting up auxiliary structures, not only can the cutting shears be used in conjunction with the cutting shears, but the symmetrical protective plates can also prevent objects from flying out and injuring rescue personnel when the demolition head is breaking through.
[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0019] In the attached diagram:
[0020] Figure 1This is a perspective view of the present utility model;
[0021] Figure 2 This is a diagram showing the assembly of the base and the demolition head of this utility model;
[0022] Figure 3 This is a disassembly diagram of the connecting column and the joint of this utility model;
[0023] Figure 4 This is a disassembly diagram of the cover plate and base of this utility model;
[0024] Figure 5 This is a schematic diagram showing the connection between the slitting shear and the protective plate of this utility model.
[0025] In the diagram: 20. Pneumatic gun body; 21. Demolition head; 22. Slitting shears; 23. Fixing groove; 30. Base; 31. Gathering groove; 32. Cover plate; 33. Limiting block; 34. Spring; 35. Straight groove; 36. Handle; 37. Connecting end; 38. Mounting groove; 39. Base plate; 40. Connector; 41. Connecting column; 42. Bolt; 43. Protective plate; 44. Side groove; 45. Inserting column. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0027] like Figure 1 and Figure 2 As shown, a pneumatic demolition tool assembly includes: a pneumatic gun body 20, a demolition head 21 installed on the front wall of the pneumatic gun body 20, and a cutting shear 22 installed on the top of the pneumatic gun body 20. The pneumatic gun body 20 is a conventional pneumatic component. The model of the pneumatic gun body 20 is consistent with the main pneumatic structure used in the prior art (publication number: CN221384945U). This is existing technology, so it will not be described in detail here.
[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a quick-release structure is installed at the front end of the pneumatic gun body 20 to assemble the demolition head 21 and the pneumatic gun body 20. The quick-release structure includes: a base 30, a cover plate 32, a connector 37, a mounting groove 38, a connector 40, and a connecting column 41. The base 30 is fixedly connected to the front telescopic end of the pneumatic gun body 20. The cover plate 32 is slidably connected to the wall of the base 30. The connector 37 is fixedly connected to the front wall of the base 30. The mounting groove 38 is opened at the top of the connector 37. The connector 40 is snapped into the mounting groove 38. The connecting column 41 is fixedly connected to the front wall of the connector 40. The rear wall of the demolition head 21 can be fixedly connected to the front wall of the connecting column 41.
[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the base 30 is a semi-capsule-shaped block with its curved surface facing downwards. The cover plate 32 is a rectangular plate with an upward-facing concave curved bottom. The connector 37 is cylindrical, and the mounting groove 38 is a T-shaped slot. The connector 40 can fit into the mounting groove 38, with a curved top that fits against the top of the connector 37. The groove at the bottom of the cover plate 32 fits against the curved top of the connector 37. The quick-release structure also includes a retractable... The base 30 has a groove 31, a limiting block 33, a spring 34, a straight groove 35, a handle 36, and a base plate 39. The groove 31 is formed on the front wall of the base 30. The limiting block 33 is symmetrically fixedly connected to the top two sides of the rear wall of the cover plate 32. The spring 34 is fixedly connected in the groove 31. The straight groove 35 is formed through the top of the base 30. The handle 36 is fixedly connected to the top of the cover plate 32. The base plate 39 is fixedly connected to the bottom of the connector 37. The groove 31 has symmetrically formed fittings. The rectangular groove for sliding the limiting block 33, the receiving groove 31 can adapt to the sliding of the cover plate 32, the limiting block 33 is a rectangular block, the rear wall of the spring 34 is fixedly connected in the receiving groove 31, the front end of the spring 34 can abut against the rear wall of the cover plate 32, the straight groove 35 is a rectangular opening, the handle 36 can slide along the straight groove 35, the handle 36 is an inverted L-shaped block, the base plate 39 is an arc plate, the top of the base plate 39 can fit against the bottom arc surface of the connecting column 41, and the pneumatic gun body 20 The front wall is also provided with an auxiliary structure, which includes: a fixing groove 23, a bolt 42, a protective plate 43, a side groove 44 and a plug 45. The fixing groove 23 is opened through the top of the slitting shear 22. The bolt 42 is threadedly connected to the top of the pneumatic gun body 20. The protective plate 43 is symmetrically fixedly connected to both sides of the front wall of the pneumatic gun body 20. The side groove 44 is opened through the side wall of the protective plate 43. The plug 45 is fixedly connected to one side of the side groove 44.
[0030] In practical use, first, take the device to the desired breaching location, then align the front end of the breaching head 21 with the desired breaching location. Then, by controlling the extension and retraction of the front end of the pneumatic gun body 20, the breaching head 21 moves forward. As the extension and retraction end of the pneumatic gun body 20 moves, it moves the base 30. The base 30 then moves the joint end 37 on its wall and the base plate 39 synchronously. When the joint end 37 moves, it moves the connector 40 within the mounting groove 38 through the mounting groove 38. When the device moves, it will cause the connecting column 41 to move, which in turn will cause the demolition head 21 to move. As the demolition head 21 extends or retracts, it will contact the area to be demolished, thus achieving demolition. When it is necessary to disassemble and replace the demolition head 21 with a different size, the handle 36 will be pulled backward. When the handle 36 is pulled, it will move along the straight groove 35. During this movement, the handle 36 will cause the cover plate 32 to move along the receiving groove 31. As the cover plate 32 moves backward, it will compress the spring 34, and as the mounting groove 38 rises... Once the mounting slot 38 is fully open, the connector 40 can be removed from it. As the connector 40 is removed, the connecting column 41 and the breaking head 21 will be disassembled simultaneously. During installation, the cover plate 32 is moved into place in the same manner. Then, the connector 40 is inserted into the mounting slot 38, and the handle 36 is released. At this point, the spring 34 extends, pushing the cover plate 32 forward to cover the top of the connecting column 41, thus completing the installation. When the cutting shears 22 are needed... Remove bolt 42 from the top of slitting shear 22. At this point, slitting shear 22 can be disassembled. Then, insert the fixing groove 23 and the insert post 45 on the wall of slitting shear 22 and place slitting shear 22 horizontally in the symmetrical side groove 44. At this point, open slitting shear 22 and align the opening of slitting shear 22 with the position to be cut. Then, activate the telescopic end of the pneumatic gun body 20 to extend and retract. The telescopic end will abut against the rear handle of slitting shear 22. When the slitting shear 22 is abutted, the opening will close and then the cutting will be achieved.
[0031] In summary, by setting up a quick-release structure in conjunction with the use of the dismantling head 21 and the cutting shears 22, both dismantling and cutting can be achieved, and replacement and dismantling can be completed quickly.
[0032] like Figure 2 and Figure 5 As shown, the fixing groove 23 is located at the center of the top of the slitting shear 22. The top of the pneumatic gun body 20 is provided with a threaded hole for the bolt 42. The bolt 42 can pass through the fixing groove 23. The protective plate 43 is an arc-shaped plate. The connecting end 37 is located between the symmetrical protective plates 43. The side groove 44 is a rectangular groove. The insert post 45 is a cylinder that can fit the fixing groove 23. The slitting shear 22 can be placed horizontally in the symmetrical side groove 44.
[0033] In actual use, when the demolition head 21 is demolishing, the symmetrical protective plates 43 will be located on both sides of the demolition head 21, and the symmetrical protective plates 43 will block the objects that are splashed to both sides when the demolition head 21 is demolishing.
[0034] In summary, by setting up auxiliary structures, not only can the cutting shears 22 be used for cutting, but the symmetrical protective plates 43 can also prevent objects from flying out and injuring rescue personnel when the demolition head 21 is breaking through.
[0035] Working principle: The device is taken to the area to be breached, and the front end of the breaching head 21 is aligned with the area to be breached. The breaching head 21 is moved forward by controlling the extension and retraction of the front end of the pneumatic gun body 20. When the extension and retraction end of the front end of the pneumatic gun body 20 moves, it will drive the base 30 to move. The base 30 will drive the joint end 37 and the base plate 39 on its wall to move synchronously. When the joint end 37 moves, it will drive the connector 40 in the mounting groove 38 to move through the mounting groove 38. When the connector 40 moves, it will drive the connecting column 41 to move. The connecting column 41 will drive the breaching head 21 to move. When the breaching head 21 extends and retracts, it will come into contact with the area to be breached, thereby achieving the breaching.
[0036] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A pneumatic demolition tool, characterized in that, include: The pneumatic gun body (20) has a demolition head (21) installed on the front wall of the pneumatic gun body (20) and a cutting shear (22) installed on the top of the pneumatic gun body (20). The quick-release structure is set at the front end of the pneumatic gun body (20) to assemble the demolition head (21) and the pneumatic gun body (20). The quick-release structure includes: base (30), cover plate (32), end (37), mounting groove (38), connector (40) and connecting column (41). The base (30) is fixedly connected to the front end of the pneumatic gun body (20). The cover plate (32) is slidably connected to the wall of the base (30). The end (37) is fixedly connected to the front wall of the base (30). The mounting groove (38) is opened at the top of the end (37). The connector (40) is snapped into the mounting groove (38). The connecting column (41) is fixedly connected to the front wall of the connector (40). The rear wall of the demolition head (21) can be fixedly connected to the front wall of the connecting column (41).
2. The pneumatic demolition tool according to claim 1, characterized in that, The base (30) is a semi-capsule-shaped block with the arc surface of the base (30) facing downwards. The cover plate (32) is a rectangular plate with the bottom of the cover plate (32) being an upward-concave arc surface. The connector (37) is cylindrical, and the mounting groove (38) is a T-shaped groove. The connector (40) can fit into the mounting groove (38). The top of the connector (40) is an arc surface, and the arc surface at the top of the connector (40) can fit with the top of the connector (37). The groove at the bottom of the cover plate (32) can fit with the arc surface at the top of the connector (37).
3. The pneumatic demolition tool according to claim 1, characterized in that, The quick-release structure also includes a groove (31), a limiting block (33), a spring (34), a straight groove (35), a handle (36), and a base plate (39). The groove (31) is opened on the front wall of the base (30). The limiting block (33) is symmetrically fixedly connected to the top two sides of the rear wall of the cover plate (32). The spring (34) is fixedly connected in the groove (31). The straight groove (35) is opened through the top of the base (30). The handle (36) is fixedly connected to the top of the cover plate (32). The base plate (39) is fixedly connected to the bottom of the connector (37).
4. A pneumatic demolition tool according to claim 3, characterized in that, The receiving groove (31) is symmetrically provided with rectangular grooves adapted to slide the symmetrical limiting block (33). The receiving groove (31) can be adapted to slide the cover plate (32). The limiting block (33) is a rectangular block. The rear wall of the spring (34) is fixedly connected in the receiving groove (31). The front end of the spring (34) can abut against the rear wall of the cover plate (32). The straight groove (35) is a rectangular opening. The handle (36) can slide along the straight groove (35). The handle (36) is an inverted L-shaped block. The bottom plate (39) is an arc plate. The top of the bottom plate (39) can fit against the bottom arc surface of the connecting column (41).
5. A pneumatic demolition tool according to claim 1, characterized in that, The front wall of the pneumatic gun body (20) is also provided with an auxiliary structure, which includes: a fixing groove (23), a bolt (42), a protective plate (43), a side groove (44), and a plug (45). The fixing groove (23) is opened through the top of the slitting shear (22). The bolt (42) is threadedly connected to the top of the pneumatic gun body (20). The protective plate (43) is symmetrically fixedly connected to both sides of the front wall of the pneumatic gun body (20). The side groove (44) is opened through the side wall of the protective plate (43). The plug (45) is fixedly connected in the side groove (44) on one side.
6. A pneumatic demolition tool according to claim 5, characterized in that, The fixing groove (23) is located at the center of the top of the slitting shear (22). The top of the pneumatic gun body (20) is provided with a threaded hole for the matching bolt (42). The bolt (42) can pass through the fixing groove (23). The protective plate (43) is an arc-shaped plate, and the joint (37) is located between the symmetrical protective plates (43).
7. A pneumatic demolition tool according to claim 5, characterized in that, The side groove (44) is a rectangular groove, the insert (45) is a cylinder that can be adapted to the fixing groove (23), and the cutting shear (22) can be placed horizontally in the symmetrical side groove (44).
Citation Information
Patent Citations
Backpack type pneumatic forcible entry tool convenient to carry
CN221384945U