Protective door

Abstract

The utility model discloses a protective door, and solves the technical problems that a protective door in a sample milling machine in the prior art is relatively low in safety and is easy to fall off due to sudden breakage of a steel wire rope, so that operation and maintenance personnel are injured. The protective door comprises a door plate, a hinge assembly and a safety assembly. The fixed end of the hinge assembly is hinged to the sample milling machine, and the movable end of the hinge assembly is hinged to the door plate, so that the door plate can rotate around the fixed end of the hinge assembly, and opening and closing of the taking and placing opening are achieved. The safety assembly is arranged on the sample milling machine and used for locking the closed state of the door plate. According to the protective door, the door plate is connected to the sample milling machine through the hinge assembly, and when the taking and placing opening is in the open state, the door plate can rotate around the fixed end of the hinge assembly, so that the edge of the door plate abuts against the hinge assembly, limiting and fixing of the door plate are achieved, the situation that the door plate suddenly falls off is prevented, and therefore the safety of the protective door is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of milling equipment, and specifically relates to a protective door. Background Art

[0002] In the prior art, when performing sample analysis, the surface of various samples needs to be milled before spectral analysis can be performed.

[0003] At present, the protective door of the milling machine produced by Herzog in Germany is heavy and is connected to the counterweight block through a steel wire rope. The steel wire rope between the door panel and the counterweight block is supported and guided by a guide wheel. Figure 1 As shown;

[0004] When the protective door needs to be opened / closed, the staff needs to manually pull the protective door. Under the external force applied by the staff, the protective door will slide along the length of the slide rail to open / close the access port.

[0005] The setting of the counterweight block can effectively reduce the difficulty of opening and closing the protective door; however, during the frequent milling process, the wire rope connecting the protective door and the counterweight block will wear and tear, and there is a possibility of sudden breakage. Once the wire rope breaks, the protective door will fall rapidly under the action of gravity, which is very likely to cause harm to operators and maintenance personnel, and has low safety.

[0006] Furthermore, due to the relatively small space inside the milling machine, each wire rope replacement requires multiple people working simultaneously for 3-4 hours to complete. The entire replacement process is time-consuming and labor-intensive, resulting in reduced production efficiency. Therefore, inventing a safe and easy-to-use protective door is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0007] In order to solve the above technical problems, the present application provides a protective door to solve the technical problem that the protective door in the milling machine in the prior art has low safety and is easily fallen due to sudden breakage of the wire rope, causing injuries to operators and maintenance personnel.

[0008] The technical solutions adopted to achieve the purpose of this application are:

[0009] A protective door is used to protect the access opening of a milling machine, and includes a door panel, a hinge assembly, and a safety assembly;

[0010] The fixed end of the hinge assembly is hinged on the milling machine, and the movable end of the hinge assembly is hinged on the door panel, so that the door panel can rotate around the fixed end of the hinge assembly to open and close the access opening; and when the access opening is in the open state, the door panel can rotate around the fixed end of the hinge assembly so that the edge of the door panel abuts against the hinge assembly to achieve limited fixation of the door panel;

[0011] The safety component is arranged on the milling machine and is used for locking the door panel in a closed state.

[0012] In order to better realize the present application, further optimization is made in the above structure, wherein the hinge assembly includes a rotating arm A and a rotating arm B;

[0013] The fixed end of the rotating arm A and the fixed end of the rotating arm B are both hinged on the milling machine, and the fixed end of the rotating arm A and the fixed end of the rotating arm B are arranged in sequence along the height direction of the taking and placing port;

[0014] The movable end of the rotating arm A and the movable end of the rotating arm B are both hinged on the door panel, and the movable end of the rotating arm A and the movable end of the rotating arm B are arranged in sequence along the height direction of the door panel.

[0015] In order to better realize the present application, the above structure is further optimized, and the fixed end of the rotating arm A and the fixed end of the rotating arm B are both hinged to the milling machine through the cooperation of the bearing and the bearing seat;

[0016] The movable end of the rotating arm A and the movable end of the rotating arm B are both hinged to the door panel through the cooperation of a bearing and a bearing seat.

[0017] In order to better implement the present application, further optimization is made in the above structure, wherein the safety component includes a locking cylinder;

[0018] The locking cylinder is a telescopic cylinder, and the locking cylinder is arranged on the milling machine;

[0019] When the door panel is in a closed state, the hinge assembly is provided with a limiting hole at a position corresponding to the locking cylinder; the door panel is locked in a closed state by inserting the telescopic end of the locking cylinder into the limiting hole.

[0020] In order to better implement the present application, further optimization is made in the above structure, wherein the safety component includes a locking detection switch;

[0021] The locking detection switch is arranged on the milling machine, and the locking detection switch can detect the state of the locking cylinder.

[0022] In order to better implement the present application, further optimization is made in the above structure, wherein the safety component further includes a state detection device;

[0023] The state detection device is arranged on the milling machine, and the state detection device can detect the state of the door panel.

[0024] In order to better realize the present application, further optimization is made in the above structure, and the door panel is made of acrylic panel.

[0025] In order to better realize the present application, further optimization is made in the above structure, and a door handle is provided on the door panel.

[0026] In order to better realize the present application, further optimization is made in the above structure, and the protective door further includes a door frame;

[0027] The door frame is arranged at the take-in and put-out opening of the milling machine;

[0028] The fixed end of the hinge assembly is hinged to the door frame;

[0029] The safety component is arranged on the door frame.

[0030] In order to better realize the present application, further optimization is made in the above structure, and the protective door also includes a control system;

[0031] The safety component is connected to the control system and the milling machine signal; when the safety component does not lock the door panel in the closed state, the milling machine does not work.

[0032] It can be seen from the above technical solution that the door panel in the protective door provided in this application is connected to the milling machine through a hinge assembly, and when the access port is in the open state, the door panel can rotate around the fixed end of the hinge assembly, so that the edge of the door panel is against the hinge assembly, thereby realizing the limited fixation of the door panel to prevent the door panel from suddenly falling, thereby improving the safety of the protective door. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural diagram of a protective door in the prior art;

[0034] Figure 2 This is a structural diagram of a protective door in the open state of this application;

[0035] Figure 3 This is a back view of a protective door in the open state of the present application;

[0036] Figure 4 This is a side view of a protective door in the open state of the present application;

[0037] Figure 5 A disassembled diagram of a protective door for this application;

[0038] Figure 6 This is a schematic diagram of the structure of the protective door when the rotating arm A cooperates with the locking cylinder;

[0039] Figure 7 This is a structural schematic diagram of a protective door in the closed state of this application.

[0040] Description of reference numerals:

[0041] 1-door panel, 11-door handle;

[0042] 2- hinge assembly, 21- rotating arm A, 211- limiting hole, 22- rotating arm B;

[0043] 3-safety component, 31-locking cylinder, 32-locking detection switch, 33-status detection device;

[0044] 4-Door frame. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to which this application belongs to understand this application more clearly, the technical solution of this application is described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0046] In the embodiments of this application, Figures 2 to 7 As shown, the protective door includes a door panel 1, a hinge assembly 2 and a safety assembly 3, and the protective door is used to protect the access opening of the milling machine; wherein,

[0047] The fixed end of the hinge assembly 2 is hinged on the milling machine, and the movable end of the hinge assembly 2 is hinged on the door panel 1;

[0048] The safety component 3 is arranged on the milling machine and is used to lock the door panel 1 in a closed state.

[0049] In normal state, the protective plate is closed. Figure 7 , that is, the door panel 1 is covered at the position of the access opening of the milling machine, and at the same time, the safety component 3 locks the door panel 1 in the closed state;

[0050] When it is necessary to put a sample into the milling machine, the staff can unlock the safety component 3 to eliminate the lock of the door panel 1 by the safety component 3, and then pull the door panel 1 upward to rotate the door panel 1 upward around the fixed end of the hinge component 2;

[0051] When the door panel 1 is in a fully open state, the staff can rotate the door panel 1 around the movable end of the hinge assembly 2 so that the lower edge of the door panel 1 is against the hinge assembly 2. Figure 2 ;

[0052] At this time, the upper edge of the door panel 1 will tilt away from the milling machine, so that the outer surface of the milling machine (the side with the access port) and the plane where the door panel 1 is located form a "Y" shaped structure in cross section, see Figure 4Under the action of gravity, the upper edge of the door panel 1 will use the movable end of the hinge assembly 2 as the rotation point, so that the lower edge of the door panel 1 presses the hinge assembly 2 toward the milling machine, making it impossible for the hinge assembly 2 to rotate downward, so that the open state of the door panel 1 is locked, that is, the door panel 1 is limited and fixed, so that the door panel 1 will not be in danger of falling suddenly, thereby improving the safety of the protective door when in use.

[0053] When the access opening needs to be closed, the staff only needs to rotate the door panel 1 around the movable end of the hinge assembly 2, that is, rotate the upper edge of the door panel 1 toward the milling machine, so that the lower edge of the door panel 1 is separated from the hinge assembly 2. At this time, the staff can rotate the door panel 1 downward around the fixed end of the hinge assembly 2 until the door panel 1 covers the access opening.

[0054] In some embodiments, the protective door further includes a control system; wherein,

[0055] Safety component 3 is connected to the control system and the milling machine signal;

[0056] When the safety component 3 does not lock the door panel 1 in the closed state, the milling machine cannot start and sends out an alarm signal. The milling machine can only start normally when the staff completely closes the door panel 1, that is, when the safety component 3 locks the door panel 1 in the closed state;

[0057] If it is in working state, that is, after taking / putting the sample in the middle of the milling machine operation, when the safety component 3 does not lock the door panel 1 in the closed state, the milling machine will stop working and issue an alarm signal until the staff completely closes the door panel 1, that is, when the safety component 3 locks the door panel 1 in the closed state, the milling machine can resume working state.

[0058] In some embodiments, in order to facilitate the opening and closing of the door panel 1, the door panel 1 is made of an acrylic panel, which is strong enough to meet the use requirements of the milling machine, and the overall weight of the door panel 1 is reduced, making the opening and closing of the door panel 1 more convenient, eliminating components such as counterweights, steel ropes, and guide wheels, thereby reducing the production cost and maintenance cost of the milling machine.

[0059] In addition, the door panel 1 made of acrylic board is transparent, which is convenient for the staff to observe the milling of the sample and the operation inside the milling machine.

[0060] Of course, the door panel 1 can also be made of materials with similar strength and weight, such as tempered glass and PVC, which are commonly used in the prior art. The present application has no particular restrictions on the material of the door panel 1, that is, any material that can be easily pulled by the operator and will not be damaged during the operation of the milling machine can be used.

[0061] Preferably, a door handle 11 is provided on the side of the door panel 1 facing away from the access opening, so that the staff can pull the door panel 1 to make the use of the protective door more convenient.

[0062] In some embodiments, the hinge assembly 2 includes a rotating arm A21 and a rotating arm B22; wherein,

[0063] The fixed end of the rotating arm A21 and the fixed end of the rotating arm B22 are both hinged on the milling machine, and the fixed end of the rotating arm A21 and the fixed end of the rotating arm B22 are arranged in sequence along the height direction of the pick-up and release opening;

[0064] The movable end of the rotating arm A21 and the movable end of the rotating arm B22 are both hinged on the door panel 1, and the movable end of the rotating arm A21 and the movable end of the rotating arm B22 are arranged in sequence along the height direction of the door panel 1; in this embodiment, the rotating arm A21 and the rotating arm B22 are arranged in sequence from bottom to top, and when the door panel 1 is opened and the door panel 1 cooperates with the hinge assembly 2 to make the door panel 1 in an open state, the lower edge of the door panel 1 abuts against the rotating arm A21.

[0065] In some embodiments, the fixed end of the rotating arm A21 and the fixed end of the rotating arm B22 are both hinged to the milling machine through the cooperation of the bearing and the bearing seat;

[0066] The movable ends of the rotating arm A21 and the movable ends of the rotating arm B22 are both hinged to the door panel 1 through the cooperation of the bearing and the bearing seat, so that the rotation of the door panel 1 is more stable and smooth. Preferably, two groups of mounting seats A are provided on the side of the door panel 1 close to the access opening (the back of the door panel 1). The two groups of mounting seats A are respectively provided near the two sides of the door panel 1. Each group of mounting seats A has two, and the two mounting seats A in the same group are arranged along the height direction of the door panel 1. Figure 5 ;

[0067] A bearing seat is provided on the mounting seat A, and a bearing is provided in the bearing seat;

[0068] The movable ends of the aforementioned rotating arms A21 and B22 are both provided with rotating shafts A. The rotating shafts A of the rotating arms A21 and B22 are respectively provided in bearings of two mounting seats A of the same group.

[0069] Two groups of mounting seats B are provided on the milling machine. The two groups of mounting seats B are respectively provided on both sides of the access opening. Each group of mounting seats B has two mounting seats. The two mounting seats B in the same group are arranged along the height direction of the access opening.

[0070] A bearing seat is provided on the mounting seat B, and a bearing is provided in the bearing seat;

[0071] The fixed ends of the rotating arm A21 and the fixed ends of the rotating arm B22 are both provided with rotating shafts B. The rotating shafts B of the rotating arm A21 and the rotating shafts B of the rotating arm B22 are respectively provided in bearings of two mounting seats B in the same group.

[0072] In some embodiments, the safety component 3 includes a locking cylinder 31; wherein,

[0073] The locking cylinder 31 is a telescopic cylinder, which is provided on the milling machine and is connected to the control system signal.

[0074] When the door panel 1 is in the closed state, the hinge assembly 2 is provided with a limit hole 211 at the position corresponding to the locking cylinder 31. In this embodiment, the limit hole 211 is provided on the rotating arm A21. The door panel 1 is locked in the closed state by inserting the telescopic end of the locking cylinder 31 into the limit hole 211. In the locked state, the door panel 1 cannot be opened. Figure 6 .

[0075] The staff can control the action of the locking cylinder 31 through the above-mentioned control system, that is, to lock and unlock the closed state of the door panel 1.

[0076] In some embodiments, the safety component 3 includes a locking detection switch 32 for detecting the state of the locking cylinder 31. Figure 3 ; The locking detection switch 32 is provided on the milling machine, and the locking detection switch 32 is connected to the control system signal;

[0077] When the door panel 1 is in a closed state and the locking cylinder 31 is not in an extended state, that is, the locking cylinder 31 is not in a closed state to lock the door panel 1, the locking detection switch 32 will send an alarm signal through the control system. The staff can check and adjust the state of the protective door according to the alarm signal to ensure the safety of the milling machine during operation.

[0078] In some embodiments, the above-mentioned safety component 3 further includes a state detection device 33 for detecting the state of the door panel 1. Figure 3 ; The state detection device 33 is provided on the milling machine, and the state detection device 33 is connected to the control system signal;

[0079] When the door panel 1 is covered on the access opening, the status detection device 33 will detect whether the door panel 1 is in contact with the access opening and feed back the information to the control system; at the same time, the control system will determine whether the door panel 1 is in a closed state based on the status information of the locking cylinder 31 fed back by the locking detection switch 32.

[0080] If the information fed back by the state detection device 33 and the locking detection switch 32 both satisfy that the door panel 1 is in the closed state, the staff can start the milling machine normally to analyze the sample;

[0081] If the information feedback from the status detection device 33 or the locking detection switch 32 indicates that the door panel 1 is not in a closed state, the milling machine cannot be started until the staff eliminates the problem and can then be started normally to improve the safety of the milling machine during use.

[0082] Of course, the control system described above can issue an alarm signal via video or sound. These two alarm methods are relatively common and commonly used in the prior art and are mature technical means, so they will not be described in detail here. If the alarm signal is issued externally via video, a display alarm device should be installed on the protective door or milling machine; if the alarm signal is issued externally via sound, an alarm device such as a buzzer or speaker should be installed on the protective door or milling machine.

[0083] In some embodiments, the protective door further includes a door frame 4;

[0084] The door frame 4 is arranged at the take-out opening of the milling machine;

[0085] The fixed end of the hinge assembly 2 is hinged to the door frame 4;

[0086] The above-mentioned safety component 3 is arranged on the door frame 4 to make the disassembly, assembly and maintenance of the protective door more convenient.

[0087] Through the above embodiments, the present application has the following beneficial effects or advantages:

[0088] 1) The door panel 1 in the protective door is connected to the milling machine through a hinge assembly 2, and when the access port is in the open state, the door panel 1 can rotate around the fixed end of the hinge assembly 2, so that the edge of the door panel 1 is against the hinge assembly 2, thereby achieving the limited fixation of the door panel 1 to prevent the door panel 1 from suddenly falling, thereby improving the safety of the protective door.

[0089] 2) The safety component 3 in the protective door can lock the closed state of the door panel 1 or detect the real-time state of the door panel 1. When the door panel 1 is not in the closed state, the milling machine cannot be started, thereby improving the safety of the milling machine when in use.

[0090] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0091] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A protective door, which is used to protect the access opening of a milling machine, characterized in that: It comprises a door panel (1), a hinge assembly (2) and a safety assembly (3); The fixed end of the hinge assembly (2) is hinged on the milling machine, and the movable end of the hinge assembly (2) is hinged on the door panel (1), so that the door panel (1) can rotate around the fixed end of the hinge assembly (2) to realize the opening and closing of the access opening; and when the access opening is in the open state, the door panel (1) can rotate around the fixed end of the hinge assembly (2) so that the edge of the door panel (1) is abutted against the hinge assembly (2) to realize the limited fixation of the door panel (1); The safety component (3) is arranged on the milling machine and is used to lock the door panel (1) in a closed state.

2. The protective door according to claim 1, characterized in that The hinge assembly (2) comprises a rotating arm A (21) and a rotating arm B (22); The fixed end of the rotating arm A (21) and the fixed end of the rotating arm B (22) are both hinged on the milling machine, and the fixed end of the rotating arm A (21) and the fixed end of the rotating arm B (22) are arranged in sequence along the height direction of the taking and placing opening; The movable end of the rotating arm A (21) and the movable end of the rotating arm B (22) are both hinged on the door panel (1), and the movable end of the rotating arm A (21) and the movable end of the rotating arm B (22) are arranged in sequence along the height direction of the door panel (1).

3. The protective door according to claim 2, characterized in that: The fixed end of the rotating arm A (21) and the fixed end of the rotating arm B (22) are both hinged to the milling machine through the cooperation of the bearing and the bearing seat; The movable end of the rotating arm A (21) and the movable end of the rotating arm B (22) are both hinged to the door panel (1) through the cooperation of a bearing and a bearing seat.

4. The protective door according to claim 1, characterized in that: The safety component (3) includes a locking cylinder (31); The locking cylinder (31) is a telescopic cylinder, and the locking cylinder (31) is arranged on the milling machine; When the door panel (1) is in a closed state, the hinge assembly (2) is provided with a limiting hole (211) at a position corresponding to the locking cylinder (31); the door panel (1) is locked in the closed state by inserting the telescopic end of the locking cylinder (31) into the limiting hole (211).

5. The protective door according to claim 4, characterized in that: The safety component (3) further includes a locking detection switch (32); The locking detection switch (32) is arranged on the milling machine, and the locking detection switch (32) can detect the state of the locking cylinder (31).

6. The protective door according to claim 5, characterized in that: The safety component (3) further includes a state detection device (33); The state detection device (33) is arranged on the milling machine, and the state detection device (33) can detect the state of the door panel (1).

7. The protective door according to claim 1, characterized in that: The door panel (1) is made of an acrylic panel.

8. The protective door according to claim 7, characterized in that: A door handle (11) is provided on the door panel (1).

9. The protective door according to any one of claims 1 to 8, characterized in that Also includes a door frame (4); The door frame (4) is arranged at the take-in and put-out opening of the milling machine; The fixed end of the hinge assembly (2) is hinged to the door frame (4); The safety component (3) is arranged on the door frame (4).

10. The protective door according to claim 9, characterized in that Also includes control systems; The control system is connected to the safety component (3) and the milling machine signal; when the safety component (3) does not lock the door panel (1) in a closed state, the milling machine does not work.

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