A stretch guard door

Abstract

The utility model relates to the field of metal frame welding device discloses a stretch protection door, including the door body, the door body outer wall is provided with cleaning linkage and stretch smooth mechanism, the cleaning linkage includes stretch door, stretch door outer wall and door body inner wall sliding connection, stretch door outer wall fixedly connected with door lock connecting block, door lock connecting block outer wall fixedly connected with door lock box, door lock box inner wall fixedly connected with door lock guide rod, door lock guide rod outer wall sliding connection has door lock wedge. In the utility model, the door lock is in the locking state, needs to pull the scraper handle drive window scraper to clean the observation window, simultaneously, the scraper connecting block follows the movement and removes the door lock wedge locking, at this moment, can pull the door handle and open the stretch door, at this moment, after cleaning, the scraper guide rod and the scraper spring drive the scraper and the scraper handle reset, avoid the artificial omission cleaning and cause the accident of the visual field blur.

Description

Technical Field

[0001] This utility model relates to the field of metal frame welding devices, and in particular to a tension protective door. Background Technology

[0002] A type of stretchable protective door, belonging to the field of welding protection equipment, is mainly used in the protective compartment of metal frame welding equipment. The stretchable door structure enables the rapid opening and closing of the compartment and the sealing and isolation, which can effectively block a large amount of metal debris from flying during the welding process. At the same time, the door is equipped with an observation window for external viewing of the internal equipment's operating status. It is an important device that takes into account both welding safety protection and operation monitoring.

[0003] To address the protection requirements of welded metal frames, existing technologies have optimized tension protective doors. Some structures utilize high-temperature resistant sealing materials to enhance the prevention of debris leakage, while others add impact-resistant protective lenses to the observation windows to improve durability. Still others equip the observation windows with manual scrapers or spray cleaning devices to remove adhering debris. However, these improvements largely focus on the "presence" of protective strength and cleaning functions, providing only manually operable cleaning methods without considering operator habits or safety linkage requirements, still relying on manual cleaning.

[0004] Existing tension protective doors have significant drawbacks. A large amount of debris generated during metal frame welding quickly adheres to the observation window surface. While not completely obstructing the view, it severely blurs the internal view, affecting the clear assessment of the welding equipment's operational status. The observation window cleaning system requires manual operation, and skilled workers often skip this step due to its perceived inconvenience, entering the protective compartment without confirming whether the internal equipment is operating normally or has been shut down. Especially when the welding equipment is in automatic operation, such blind entry can easily lead to accidents such as equipment collisions and high-temperature burns. The safety hazards caused by "manual neglect of cleaning" cannot be prevented through structural design. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a tension protective door, which aims to solve the problems in the prior art where welding debris easily adheres to the observation window, causing blurred vision; manual cleaning is often omitted; and reckless entry can easily lead to accidents, making it impossible to avoid the safety hazards of neglecting manual cleaning.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a stretchable protective door, comprising a door body, wherein a cleaning linkage mechanism and a stretching smoothing mechanism are provided at the top of the door body, the cleaning linkage mechanism includes a stretchable door, the outer wall of the stretchable door is slidably connected to the inner wall of the door, a door lock connecting block is fixedly connected to the outer wall of the stretchable door, a door lock box is fixedly connected to the outer wall of the door lock connecting block, a door lock guide rod is fixedly connected to the inner wall of the door lock box, a door lock wedge is slidably connected to the outer wall of the door lock guide rod, the outer wall of the door lock wedge is elastically connected to the inner wall of the door lock box through a door lock spring, an observation window is fixedly connected to the inner wall of the door, a window scraper is slidably connected to the outer wall of the observation window, and a scraper connecting block is fixedly connected to the outer wall of the window scraper.

[0007] As a further description of the above technical solution:

[0008] The cleaning linkage mechanism also includes a door lock rod, the outer wall of which is fixedly connected to the outer wall of the door lock wedge.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the door lock lever is slidably connected to the inner wall of the door lock box, and the outer wall of the stretch door is fixedly connected to a door handle.

[0011] As a further description of the above technical solution:

[0012] The cleaning linkage mechanism also includes a scraper handle, the outer wall of which is fixedly connected to the outer wall of the scraper connecting block.

[0013] As a further description of the above technical solution:

[0014] The cleaning linkage mechanism also includes a scraper guide rod, the outer wall of which is fixedly connected to the inner wall of the door, and the outer wall of which is slidably connected to the inner wall of the door lock connecting block.

[0015] As a further description of the above technical solution:

[0016] The cleaning linkage mechanism also includes a scraper spring, one end of which is fixedly connected to the inner wall of the door, and the other end of which is fixedly connected to the outer wall of the door lock connecting block.

[0017] As a further description of the above technical solution:

[0018] The stretching and smoothing mechanism includes a vertical roller, the outer wall of which is fixedly connected to the inner wall of the door, and the outer wall of which is slidably connected to the outer wall of the stretching door.

[0019] As a further description of the above technical solution:

[0020] The stretching and smoothing mechanism also includes a transverse roller, the outer wall of which is fixedly connected to the inner wall of the door, and the outer wall of which is slidably connected to the outer wall of the stretching door.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the door lock is normally locked. It is necessary to pull the scraper handle to drive the window scraper to clean the observation window. At the same time, the scraper connecting block releases the door lock wedge block lock. Only then can the door handle be pulled to open the sliding door. After cleaning is completed, the scraper guide rod and scraper spring drive the scraper and scraper handle to reset, avoiding accidents caused by blurred vision due to manual omission of cleaning.

[0023] 2. In this utility model, the vertical and horizontal rollers of the stretching and smoothing mechanism reduce the sliding friction between the door body and the stretching door, extend the service life, and prevent the door from being difficult to open due to the locking design of the door lock wedge, thus balancing the safety locking and smooth use of the protective door. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of a tension protective door proposed in this utility model;

[0025] Figure 2 This is a partial structural diagram of a tension protective door proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of a partial disassembly structure of a tension protective door proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the disassembly structure of a tension protective door proposed in this utility model.

[0028] Legend:

[0029] 1. Door body; 2. Cleaning linkage mechanism; 211. Pull-out door; 212. Door lock connecting block; 213. Door lock box; 214. Door lock guide rod; 215. Door lock spring; 216. Door lock wedge; 217. Door lock pull rod; 218. Observation window; 219. Window scraper; 220. Scraper connecting block; 221. Scraper handle; 222. Scraper guide rod; 223. Scraper spring; 224. Door handle; 3. Pull-out smoothing mechanism; 311. Vertical roller; 312. Horizontal roller. Detailed Implementation

[0030] 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.

[0031] Reference Figures 1-3 The present invention provides an embodiment of a stretchable protective door, comprising a door body 1, which is the basic frame of the entire protective door and provides installation support for a cleaning linkage mechanism 2 and a stretching smoothing mechanism 3. The top of the door body 1 is provided with the cleaning linkage mechanism 2 and the stretching smoothing mechanism 3. The cleaning linkage mechanism 2 is a linkage structure that realizes the locking of the stretchable door 211 and the cleaning of the observation window 218. The stretching smoothing mechanism 3 is a structure used to improve the smoothness of the stretching of the stretchable door 211. The cleaning linkage mechanism 2 includes the stretchable door 211... 11. The sliding door 211 is the main body of the protective door that can slide relative to the door body 1. The outer wall of the sliding door 211 is slidably connected to the inner wall of the door body 1. The sliding door 211 can slide along the inner wall of the door body 1 to realize the opening and closing of the door body 1. A door lock connecting block 212 is fixedly connected to the outer wall of the sliding door 211. The door lock connecting block 212 is a component that connects the sliding door 211 and the door lock box 213. The door lock box 213 is fixedly connected to the outer wall of the door lock connecting block 212. The door lock box 213 is where the door lock guide rod 214 is installed. The door lock spring 215 and door lock wedge 216 have a box-like structure. A door lock guide rod 214 is fixedly connected to the inner wall of the door lock box 213. The door lock guide rod 214 is a rod-shaped component that provides sliding guidance for the door lock wedge 216. The door lock wedge 216 is slidably connected to the outer wall of the door lock guide rod 214. The door lock wedge 216 is a wedge-shaped component used to lock the extended door 211. The outer wall of the door lock wedge 216 is elastically connected to the inner wall of the door lock box 213 via the door lock spring 215. The door lock spring 215 is a component that provides sliding guidance for the door lock 216. The locking wedge 216 provides a resilient component for resetting the spring force. An observation window 218 is fixedly connected to the inner wall of the door 1. The observation window 218 is a transparent component installed on the door 1 for observing the interior of the door 1. A window scraper 219 is slidably connected to the outer wall of the observation window 218. The window scraper 219 is a scraper component for cleaning the surface of the observation window 218. A scraper connecting block 220 is fixedly connected to the outer wall of the window scraper 219. The scraper connecting block 220 is a connecting block that connects the window scraper 219 and the scraper handle 221.

[0032] Reference Figures 2-4The cleaning linkage mechanism 2 also includes a door lock lever 217, which is a rod-shaped component used to pull the door lock wedge 216. The outer wall of the door lock lever 217 is fixedly connected to the outer wall of the door lock wedge 216, and the door lock lever 217 can drive the door lock wedge 216 to move synchronously. The outer wall of the door lock lever 217 is slidably connected to the inner wall of the door lock box 213, and the door lock lever 217 can slide along the inner wall of the door lock box 213. A door handle 224 is fixedly connected to the outer wall of the sliding door 211. The door handle 224 is a hand-held component that facilitates pulling the sliding door 211 to open and close the door body 1. The cleaning linkage mechanism 2 also includes a scraper handle 221 and a scraper handle 222. 1 is a handheld component for easy operation of the window scraper 219. The outer wall of the scraper handle 221 is fixedly connected to the outer wall of the scraper connecting block 220. The scraper handle 221 can drive the scraper connecting block 220 to move synchronously. The cleaning linkage mechanism 2 also includes a scraper guide rod 222. The scraper guide rod 222 is a rod-shaped component that provides sliding guidance for the door lock connecting block 212. The outer wall of the scraper guide rod 222 is fixedly connected to the inner wall of the door body 1. The scraper guide rod 222 achieves stable support by being fixed to the door body 1. The outer wall of the scraper guide rod 222 is slidably connected to the inner wall of the door lock connecting block 212. The door lock connecting block 212 can slide along the outer wall of the scraper guide rod 222.

[0033] Reference Figures 3-4 The cleaning linkage mechanism 2 also includes a scraper spring 223, which is an elastic component that provides a return force to the door lock connecting block 212. One end of the scraper spring 223 is fixedly connected to the inner wall of the door body 1, and the other end of the scraper spring 223 is fixedly connected to the outer wall of the door lock connecting block 212. The other end of the scraper spring 223 can drive the door lock connecting block 212 to return to its original position. The stretching and smoothing mechanism 3 includes a vertical roller 311, which is a rolling component used to reduce vertical friction between the stretching door 211 and the door body 1. The outer wall of the vertical roller 311 is fixedly connected to the inner wall of the door body 1, and the vertical roller 311 is fixedly connected to the inner wall of the door body 1. The door body 1 is fixed to achieve stable installation. The outer wall of the vertical roller 311 is slidably connected to the outer wall of the stretch door 211. The vertical roller 311 can roll relative to the stretch door 211 to reduce the friction between the stretch door 211 and the door body 1. The stretching smoothing mechanism 3 also includes a horizontal roller 312. The horizontal roller 312 is a rolling component used to reduce the lateral friction between the stretch door 211 and the door body 1. The outer wall of the horizontal roller 312 is fixedly connected to the inner wall of the door body 1. The horizontal roller 312 is fixedly installed to achieve stable installation by being fixed to the door body 1. The outer wall of the horizontal roller 312 is slidably connected to the outer wall of the stretch door 211. The horizontal roller 312 can roll relative to the stretch door 211 to reduce the friction between the stretch door 211 and the door body 1.

[0034] Working principle: The tensioning protective door is based on the door body 1 and has a frame. The cleaning linkage mechanism 2 enables two-way functions: forced cleaning for external entry and convenient unlocking for internal exit. The tensioning smooth mechanism 3 ensures smooth sliding of the tensioning door 211. Together, they solve the problems of easy omission of cleaning the observation window 218 and inconvenience of internal unlocking in traditional protective doors. It is suitable for the protection requirements of metal frame welding devices and takes into account both external operation safety and convenient access for internal personnel.

[0035] When external personnel need to enter the protective compartment, unlocking and cleaning are accomplished through the external linkage structure of the cleaning linkage mechanism 2. Normally, the sliding door 211 is locked. The door lock spring 215 inside the door lock box 213 pushes the door lock wedge 216 to slide along the door lock guide rod 214, causing the door lock wedge 216 to engage with the locking structure on the inner wall of the door body 1. External operators need to pull the scraper handle 221. The scraper handle 221 drives the scraper connecting block 220 fixed to the outer wall. The scraper connecting block 220, on one hand, causes the window scraper 219 to slide along the outer wall of the observation window 218, cleaning welding debris from the surface of the observation window 218 to ensure a clear view; on the other hand, the scraper connecting block 220 directly pushes the door lock wedge 216, causing it to slide along the door lock guide rod 214 and compress the door lock spring 215, disengaging it from the locking structure of the door body 1 and releasing the external lock of the sliding door 211. At this time, pulling the door handle 224 on the outer wall of the sliding door 211 will cause the sliding door 211 to slide open along the inner wall of the door body 1. After entering the compartment, the external force is released, the scraper spring 223 resets and pushes the door lock connecting block 212, which in turn drives the scraper connecting block 220, the window scraper 219 and the scraper handle 221 back to their initial positions. The door lock spring 215 also pushes the door lock wedge block 216 to reset, and the sliding door 211 automatically relocks.

[0036] When personnel need to leave, they operate the internal unlocking mechanism of the linkage mechanism 2. After the sliding door 211 closes, it will automatically relock. Personnel do not need to operate the external scraper assembly; they only need to pull the door lock lever 217 inside the door. The door lock lever 217 drives the door lock wedge 216 fixed on the outer wall to slide along the door lock guide rod 214, compressing the door lock spring 215. This causes the door lock wedge 216 to disengage from the locking structure of the door body 1, releasing the internal lock of the sliding door 211. At this time, pushing or pulling the sliding door 211 will allow the door body 1 to slide open along the inner wall of the door body 1. After leaving, releasing the door lock lever 217 will cause the door lock spring 215 to push the door lock wedge 216 back to its original position, and the sliding door 211 will return to the locked state.

[0037] Throughout the entire process of pushing and pulling the sliding door 211, the smooth sliding mechanism 3 reduces sliding friction. The vertical roller 311 fixed to the inner wall of the door body 1 slides in contact with the outer wall of the sliding door 211, reducing the frictional resistance in the vertical direction of the sliding door 211; the horizontal roller 312 fixed to the inner wall of the door body 1 slides in contact with the outer wall of the sliding door 211, reducing the frictional resistance in the horizontal direction of the sliding door 211, ensuring that the sliding door 211 can slide smoothly whether entering from the outside or leaving from the inside, and that the ease of use is not affected by the locking structure design.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tension protective door, comprising a door body (1), characterized in that: The top of the door (1) is provided with a cleaning linkage mechanism (2) and a stretching and smoothing mechanism (3). The cleaning linkage mechanism (2) includes a pull-out door (211), the outer wall of the pull-out door (211) is slidably connected to the inner wall of the door body (1), a door lock connecting block (212) is fixedly connected to the outer wall of the pull-out door (211), a door lock box (213) is fixedly connected to the outer wall of the door lock connecting block (212), a door lock guide rod (214) is fixedly connected to the inner wall of the door lock box (213), a door lock wedge (216) is slidably connected to the outer wall of the door lock guide rod (214), the outer wall of the door lock wedge (216) is elastically connected to the inner wall of the door lock box (213) through a door lock spring (215), an observation window (218) is fixedly connected to the inner wall of the door body (1), a window scraper (219) is slidably connected to the outer wall of the observation window (218), and a scraper connecting block (220) is fixedly connected to the outer wall of the window scraper (219).

2. A tension protective door according to claim 1, characterized in that: The cleaning linkage mechanism (2) also includes a door lock rod (217), the outer wall of which is fixedly connected to the outer wall of the door lock wedge (216).

3. A tension protective door according to claim 2, characterized in that: The outer wall of the door lock rod (217) is slidably connected to the inner wall of the door lock box (213), and the outer wall of the stretch door (211) is fixedly connected to the door handle (224).

4. A tension protective door according to claim 1, characterized in that: The cleaning linkage mechanism (2) also includes a scraper handle (221), the outer wall of which is fixedly connected to the outer wall of the scraper connecting block (220).

5. A tension protective door according to claim 1, characterized in that: The cleaning linkage mechanism (2) also includes a scraper guide rod (222), the outer wall of the scraper guide rod (222) is fixedly connected to the inner wall of the door body (1), and the outer wall of the scraper guide rod (222) is slidably connected to the inner wall of the door lock connecting block (212).

6. A tension protective door according to claim 1, characterized in that: The cleaning linkage mechanism (2) also includes a scraper spring (223), one end of which is fixedly connected to the inner wall of the door body (1), and the other end of which is fixedly connected to the outer wall of the door lock connecting block (212).

7. A tension protective door according to claim 1, characterized in that: The stretching and smoothing mechanism (3) includes a vertical roller (311), the outer wall of which is fixedly connected to the inner wall of the door (1), and the outer wall of which is slidably connected to the outer wall of the stretching door (211).

8. A tension protective door according to claim 1, characterized in that: The stretching and smoothing mechanism (3) further includes a transverse roller (312), the outer wall of which is fixedly connected to the inner wall of the door (1), and the outer wall of which is slidably connected to the outer wall of the stretching door (211).

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