A pneumatic cutting saw for wainscot production
By incorporating Velcro straps and magnetic protective strips, the design solves the problems of hand chafing and accidental contact associated with pneumatic cutting saws used in wall panel production. This enables quick fixing and all-around protection, enhancing the safety and convenience of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING YICHEN QIANHE NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-26
AI Technical Summary
Existing pneumatic cutting saws used in wall panel production are prone to causing hand chafing and wrist inconvenience during use, and there is a risk of accidental switch activation.
It adopts a structure of Velcro strap and magnetic protective strip. The Velcro strap allows for quick and easy fixation of the wrist, while the magnetic protective strip provides all-around protection for the contact switch when not in use, preventing accidental activation.
It achieves quick wrist fixation and prevents accidental touches, improving the safety and convenience of use and avoiding hand irritation and accidental touches.
Smart Images

Figure CN224407671U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pneumatic cutting saw technology, and in particular to a pneumatic cutting saw for wall panel production. Background Technology
[0002] Wall panels are a new type of wall decoration material made of wood and plastic as the base material. The product is lightweight, fireproof and insect-proof, and integrates load-bearing, heat insulation and waterproof functions. The surface can present a variety of textures such as imitation solid wood, stone and tile. It is suitable for hotels, villas and temporary building scenarios. During the production of protective panels, a pneumatic cutting saw is used to cut the panels to make them better spliced and installed.
[0003] A search revealed, for example, patent CN214643816U, which discloses a pneumatic cutting saw for wall panel production, comprising: a housing; an anti-slip groove on the outer side of the housing; a connecting seat fixedly mounted on the front side of the housing, with a slot on the front side of the connecting seat; a mounting seat fixedly mounted on the rear top side of the housing by bolts, with a slot on one side of the top of the mounting seat; and an adjustment device on the front side of the mounting seat. By providing the mounting seat and adjustment device, the device can be secured to the user's wrist by a fixing cover when held in hand, thus assisting in connecting the device to the user's hand and preventing it from slipping out during use, thereby greatly improving the safety of the device. Furthermore, by providing the housing and connecting seat, and by providing a protective ring, the device can prevent accidental activation of the contact switch when placed on the ground, further enhancing its safety.
[0004] In the prior art, the device is fixed to the user's wrist by using a mounting base and connecting rod to prevent it from slipping out of the hand during use. However, since they are all made of hard materials, such as a combination of plastic and iron, they may rub against the hand during use, causing discomfort. In addition, fixing and unfixing the wrist is cumbersome and not convenient for quick use. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a pneumatic cutting saw for wall panel production, which has the advantages of quick fixing and all-round protection, thus solving the problems mentioned in the background technology.
[0006] This utility model provides the following technical solution: a pneumatic cutting saw for wall panel production, including a housing, a cavity is provided inside the housing, a contact switch is rotatably installed inside the housing, a top head is fixedly installed above the end of the contact switch, the top head is located inside the cavity, a connecting seat is fixedly connected to one side of the housing, a saw blade is provided inside the connecting seat, fixing straps are fixedly installed at both ends of the housing, and a receiving box is provided at the bottom of the housing on the side of the contact switch.
[0007] With the above structural design, the fastening strap enables quick and easy fastening. Users can pull the end of the Velcro strap to the middle of the Velcro strap, put their hand through the Velcro strap to hold the housing, and then use their other hand to fasten the Velcro strap, so that the Velcro strap is around the wrist. By setting the interaction between the storage box and the housing, the contact switch can be fully protected when the device is not in use, avoiding accidental activation due to improper placement.
[0008] Preferably, a rotating clip is rotatably installed inside the cavity on one side of the top head, and a pull rope is fixedly connected between the end of the rotating clip and the top head. A top block is provided at the bottom of the housing below the end of the contact switch, and a magnetic block is provided inside the top block.
[0009] With the above structural design, when the user presses the contact switch to start the operation, the top head changes position and the rotation angle of the rotating clip is changed by pulling the rope, so that it is locked inside the rack and the protective strip is limited.
[0010] Preferably, the fixing strap includes two collars and a Velcro strap. The collars are rotatably fitted onto both ends of the housing. The fixing strap is located above the housing and has a Velcro strap. The collars and the Velcro strap are symmetrically fixed with straps. The outer surface of the middle part and the inner surface of the end of the Velcro strap are both provided with Velcro.
[0011] With the above structural design, users can quickly attach and detach the Velcro straps from their wrists. The Velcro straps adhere quickly to securely fasten around the user's wrist, preventing them from slipping off due to vibration or other factors. Unattaching is achieved by tearing the Velcro straps with the other hand.
[0012] Preferably, the receiving box has a sliding groove inside, and a protective strip is slidably installed inside the sliding groove. The top of the protective strip has a toothed groove that engages with the end of the rotating card. The side of the end of the protective strip near the magnetic block is a magnetic surface. The magnetic surface and the magnetic block are attracted by opposite shapes. The end of the protective strip is symmetrically provided with a lever.
[0013] With the above structural design, the receiving box uses a rack that engages with the end of the rotating clip to limit the position of the protective strip during operation. When the entire device is started, the top head is driven by the contact switch and can change the angle of the rotating clip inside the cavity by pulling the pull rope. When the rotating clip rotates, the end of the rotating clip engages inside the rack, thus limiting the rack during operation.
[0014] This utility model has the following advantages:
[0015] 1. This pneumatic cutting saw for wall panel production achieves rapid wrist fixation through a structure including a housing, fixing straps, and Velcro straps. By tearing the Velcro tape between the user's wrists, the user grips the housing through the inside of the Velcro tape. Then, the user re-attaches the Velcro tape between the user's wrists, securing the user's wrist to the housing and preventing it from slipping out during use. Tearing the Velcro tape with the other hand prevents the user from slipping out of the Velcro tape when holding the housing or contacting the switch, thus achieving the effect of rapid wrist fixation and disassembly.
[0016] 2. This pneumatic cutting saw for wall panel production uses a structure including a top head, a rotating clip, a top block, a protective strip, and toothed grooves to prevent accidental activation of the switch. When the device is not in use, the user can remove the Velcro strap by tearing it with their other hand, freeing the user from the restriction of the Velcro strap when holding the housing and the contact switch. At this time, the protective strip is no longer blocked by the rotating clip or the finger, and will slide along the angle of the groove. When the protective strip slides, its end is attracted by the magnetic force between it and the magnetic block, which helps to align and fix the protective strip. This achieves all-round protection for the contact switch when not in use. When the user temporarily places the device, it prevents the contact switch from being accidentally activated by loose pieces of board on the workbench. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model;
[0019] Figure 3 This is a schematic diagram of the fixing strap structure of this utility model;
[0020] Figure 4 This is an explosion-proof diagram of the internal protective strip of the receiving box structure of this utility model.
[0021] In the diagram: 1. Housing; 11. Cavity; 12. Contact switch; 13. Top head; 14. Rotary clip; 15. Pull rope; 16. Top block; 17. Magnetic block; 2. Connecting seat; 21. Saw blade; 3. Fixing strap; 31. Collar; 32. Velcro strap; 33. Binding strap; 4. Collection box; 41. Slide groove; 42. Protective strip; 43. Tooth groove; 44. Pulling block. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-2 A pneumatic cutting saw for wall panel production includes a housing 1, with a cavity 11 inside the housing 1. A contact switch 12 is rotatably installed inside the housing 1. A top head 13 is fixedly installed above the end of the contact switch 12 and is located inside the cavity 11. A connecting seat 2 is fixedly connected to one side of the housing 1. A saw blade 21 is provided inside the connecting seat 2. Fixing straps 3 are fixedly installed at both ends of the housing 1. A receiving box 4 is provided at the bottom of the housing 1 on the side of the contact switch 12.
[0024] In practical applications, this device achieves quick and easy fixation through the fixing strap 3. Users can pull the Velcro strap 32 from the end to the middle, pass their hand through the Velcro strap 32 to grasp the housing 1, and then use their other hand to fix the Velcro strap 32 around their wrist. Due to the Velcro adhesion, the Velcro strap 32 will not fall off, ensuring that the user's hand is always around the housing 1 during use. When not in use, the user can easily move the entire device by lifting the fixing strap 3.
[0025] By setting up the interaction between the receiving box 4 and the housing 1, the contact switch 12 can be fully protected when the device is not in use, avoiding accidental activation due to improper placement. When the device is not in use, the protective strip 42 can slide out of the sliding groove 41 due to the inclined setting of the sliding groove 41. When the end of the protective strip 42 slides to the surface of the housing 1, the magnetic surface of the end of the protective strip 42 is magnetically attracted to the magnetic block 17, realizing the position assistance and positioning of the protective strip 42. When the user places the device, whether it is placed on a flat or inclined surface, the protective strip 42 can protect the contact switch 12 and avoid accidental activation of the protective strip 42.
[0026] Since the environment in which this device is used is basically in the cutting of protective wall panels, there are a lot of scraps of panels in the surrounding environment. If the user places them carelessly, the scraps of panels may press against the contact switch 12. By setting the protective strip 42, the scraps of panels and other components can be prevented from accidentally touching the contact switch 12, thus achieving a protective effect.
[0027] Please see Figures 1-4Inside the cavity 11, a rotating clip 14 is rotatably installed on one side of the top head 13. A pull rope 15 is fixedly connected between the end of the rotating clip 14 and the top head 13. At the bottom of the housing 1, below the end of the contact switch 12, there is a top block 16. Inside the top block 16, there is a magnetic block 17.
[0028] The housing 1 is linked with the rotating clip 14, the pull rope 15, the contact switch 12, and the top head 13 by setting up a linkage. When the user presses the contact switch 12 to start the operation, the top head 13 changes position and changes the rotation angle of the rotating clip 14 through the pull rope 15. This locks the top head 14 inside the tooth groove 43 to limit the protective strip 42 and prevent it from slipping off during operation. At the same time, the magnetic block 17 is magnetically matched with the end of the protective strip 42 to achieve the effect of magnetic fixation and auxiliary positioning.
[0029] Please see Figures 1-3 The fixing strap 3 includes two collars 31 and a Velcro strap 32. The collars 31 are rotatably fitted onto both ends of the housing 1. The fixing strap 3 is located above the housing 1 and has a Velcro strap 32. The collars 31 and the Velcro strap 32 are symmetrically fixedly connected with straps 33. The outer surface of the middle part and the inner surface of the end of the Velcro strap 32 are provided with Velcro. The inner surface of the end of the Velcro strap 32 can be attached to the outer surface of the middle part of the Velcro strap 32 through Velcro.
[0030] With the fixing strap 3, users can quickly attach and detach the strap from their wrist. The Velcro strap 32 is quickly attached to securely fasten the strap to the user's wrist, preventing it from slipping off due to vibration or other factors. Detachment is achieved by tearing the Velcro strap 32 with the other hand. When not in use, the fixing strap 3 allows the entire device to be moved by hand, similar to the straps on a chainsaw or other equipment, providing both a fixed position and easy access for quick movement.
[0031] Please see Figures 1-4 The inside of the receiving box 4 is provided with a sliding groove 41, and a protective strip 42 is slidably installed inside the sliding groove 41. The top of the protective strip 42 is provided with a toothed groove 43, which engages with the end of the rotating card 14. The side of the end of the protective strip 42 near the magnetic block 17 is a magnetic surface. The magnetic surface and the magnetic block 17 are attracted by opposite shapes. The magnetism can only help the protective strip 42 to be aligned when sliding and will not cause resistance to the user pulling the protective strip 42. The end of the protective strip 42 is symmetrically provided with a lever 44. The user can change the position of the protective strip 42 inside the sliding groove 41 by moving the lever 44.
[0032] The receiving box 4 uses a toothed groove 43 to engage with the end of the rotating clip 14, thus limiting the positioning of the protective strip 42 during operation. In the initial stage of use, by moving the lever 44, the protective strip 42 slides into the slide groove 41. Then, the user holds the housing 1 with their fingers on the surface of the contact switch 12. As the protective strip 42 slides down the slide groove 41, it rests against the user's fingers without affecting their grip. When the user presses the contact switch 12 to start the entire device, the top head 13, driven by the contact switch 12, can pull the pull rope 1. 5. Change the angle of the rotating card 14 inside the cavity 11. When the rotating card 14 rotates, the end of the rotating card 14 is inserted into the tooth groove 43, which limits the tooth groove 43 during operation. This allows the protective strip 42 to release its protection on the contact switch 12 during operation. When the user no longer presses the contact switch 12 and no longer holds the housing 1, the protective strip 42 can slide down the slide groove 41 without the obstruction of the end of the rotating card 14 and the user's finger. The magnetic attraction between the end of the protective strip 42 and the magnetic block 17 provides protection against accidental contact of the contact switch 12.
[0033] Working principle: In use, by tearing the Velcro tape 32 between the hook and loop fasteners, the user grips the housing 1 through the inside of the Velcro tape 32. Then, the user uses the other hand to re-fasten the Velcro tape 32 between the hook and loop fasteners, so that the Velcro tape 32 is placed around the user's wrist, thus fixing the position between the user's wrist and the housing 1 and preventing it from slipping off during use. Before use, the user pulls or moves the lever 44, causing the protective strip 42 to slide into the slide groove 41, so that the user's fingers grip the lower surface of the contact switch 12. Due to the obstruction of the user's fingers, the protective strip 42 will press against the side of the user's fingers and will not affect the user's use. The user starts the entire device by pressing the contact switch 12, which cuts the protective plate. After the contact switch 12 is pressed, it moves the top head 13 to a position inside the cavity 11. The top head 13 changes the angle of the rotating clip 14 by pulling the pull rope 15. After the rotating clip 14 rotates, its end locks. The protective strip 42 is pushed into the groove 41 by inserting it into the toothed groove 43. This prevents the protective strip 42 from slipping out during operation, ensuring that it does not affect the user's pressing of the contact switch 12. After cutting, if the user needs to temporarily not use the device, they can use their other hand to peel off the Velcro tape 32 to remove the restriction of the Velcro tape 32 when the user is not holding the housing 1 and the contact switch 12. At this time, the protective strip 42 is no longer blocked by the rotating clip 14 or the fingers, and will slide in accordance with the angle of the groove 41. When the protective strip 42 slides, its end is attracted by the magnetic force between it and the magnetic block 17, which helps the protective strip 42 to be aligned and fixed in position. This achieves all-round protection for the contact switch 12 when not in use. When the user temporarily places the device, it prevents the contact switch 12 from being accidentally pressed by the loose pieces of board on the workbench. When the user needs to move the device, they can lift it by pulling the fixing strap 3, making it easy for the user to move the device.
Claims
1. A pneumatic cutting saw for wall panel production, comprising a housing (1), characterized in that: The housing (1) has a cavity (11) inside. A contact switch (12) is rotatably installed inside the housing (1). A top head (13) is fixedly installed above the end of the contact switch (12). The top head (13) is located inside the cavity (11). A connecting seat (2) is fixedly connected to one side of the housing (1). A saw blade (21) is provided inside the connecting seat (2). A fixing strap (3) is fixedly installed at both ends of the housing (1). A receiving box (4) is provided at the bottom of the housing (1) on one side of the contact switch (12).
2. The pneumatic cutting saw for wall panel production according to claim 1, characterized in that: Inside the cavity (11), a rotating clip (14) is rotatably installed on one side of the top head (13). A pull rope (15) is fixedly connected between the end of the rotating clip (14) and the top head (13). A top block (16) is provided at the bottom of the housing (1) below the end of the contact switch (12). A magnetic block (17) is provided inside the top block (16).
3. The pneumatic cutting saw for wall panel production according to claim 2, characterized in that: The fixing strap (3) includes two collars (31) and a Velcro strap (32). The collars (31) are rotatably sleeved on both ends of the housing (1). The fixing strap (3) is provided with a Velcro strap (32) above the housing (1). The collars (31) and the Velcro strap (32) are symmetrically fixedly connected with straps (33). The outer surface of the middle part and the inner surface of the end of the Velcro strap (32) are provided with Velcro.
4. A pneumatic cutting saw for wall panel production according to claim 3, characterized in that: The receiving box (4) has a sliding groove (41) inside, and a protective strip (42) is slidably installed inside the sliding groove (41). The top of the protective strip (42) has a toothed groove (43), which meshes with the end of the rotating card (14). The side of the end of the protective strip (42) near the magnetic block (17) is a magnetic surface. The magnetic surface and the magnetic block (17) are attracted by opposite shapes. The end of the protective strip (42) is symmetrically provided with a lever (44).