Protective door convenient to maintain

Abstract

The invention provides a protective door convenient to maintain. The protective door convenient to maintain comprises a door plate, a window frame arranged on the door plate, a window frame front pressing plate fixed to the window frame, a window matched with the window frame front pressing plate and a spring bolt rotationally connected with the window. One side of the window is hinged with the door plate; arc-shaped grooves are formed in the two sides of the window frame front pressing plate respectively. Four elastic positioning pieces are arranged on the face, close to the front pressing plate of the window frame, of the window, and the elastic positioning pieces are evenly distributed in a cross shape. Two holes matched with the elastic positioning pieces are formed in the direction of the opposite long side of the spring bolt; the spring bolt is rotated, so that the two ends of the opposite long sides of the spring bolt are clamped into the arc-shaped grooves, the two elastic positioning pieces pop out of the holes, and the spring bolt is self-locked. According to the protective door convenient to maintain, the sealing performance of the protective door is improved, meanwhile, the protective door can be opened and closed without a key, and operation is more convenient and faster.

Description

Technical Field

[0001] The present invention relates to the technical field of machine tool and 3D printing protection, and in particular to a protective door for a machine tool or a 3D printer that is easy to maintain. Background Art

[0002] With the widespread use of machine tools and 3D printers, the requirements for maintenance doors on the outer protection of machine tools and 3D printers are getting higher and higher, and the requirements for the convenience of operation of the protection doors are getting higher and higher. At the same time, the requirements for the sealing of special-purpose protection doors are also getting higher and higher, especially the protection doors of the waterproof and oil-proof areas of machine tools or the protection doors of the printing room and the cleaning room of 3D printers. If the cutting fluid or printer powder leaks from the protection doors in these areas, it will have a great impact on the operators and the environment. Therefore, the sealing requirements for the protection doors in these areas are also getting higher and higher. In addition, the requirements for the comfort and convenience of the operators in the waterproof and oil-proof areas of machine tools or the printing room and the cleaning room of 3D printers are also increasing. The sealing of the traditional door lock fixing method does not meet the requirements. In addition, the operation of the door lock remains unchanged, and the door lock requires a special key to open. For the overall environment of manufacturing enterprises, there are many kinds of keys and it is troublesome to find the special key of the door lock, which will cause a waste of time and it is difficult to meet the needs of operators to quickly open the protection door. Summary of the invention

[0003] Based on this, it is necessary to provide a protective door that is easy to maintain in order to address the problems of poor sealing effect and inconvenient switching operation of the protective door in the prior art. The protective door that is easy to maintain not only improves its sealing performance but also allows the protective door to be opened and closed without the use of a key, making the operation more convenient.

[0004] A door and window that is easy to maintain, the protective door that is easy to maintain comprises a door panel, a window frame arranged on the door panel, a window frame front pressure plate fixed on the window frame, a window matched with the window frame front pressure plate, and a lock tongue rotatably connected to the window; one side of the window is hinged to the door panel; arc-shaped grooves are respectively arranged on both sides of the window frame front pressure plate, and each elastic positioning member is evenly arranged in a "cross" shape; two holes matching the elastic positioning members are arranged in the direction of the relatively long side of the lock tongue; the lock tongue is rotated so that the two ends of the relatively long side of the lock tongue are stuck in the arc-shaped grooves, and the two elastic positioning members pop out of the holes, and the lock tongue is self-locking.

[0005] Furthermore, a boss with the same shape as the lock tongue is provided on one side of the window close to the front pressure plate of the window frame, and each elastic positioning member is provided on the boss. When the lock tongue is rotated to overlap with the boss, the two elastic positioning members on the relatively long sides of the boss pop out of the hole, and the lock tongue is self-locking; when the lock tongue is rotated to be perpendicular to the boss, the two elastic members on the relatively short sides of the boss pop out of the hole, and the lock tongue opens.

[0006] Furthermore, the elastic positioning member includes a base, a spring and a ball; the base is installed in a corresponding sinking hole on the boss, and the spring is arranged between the base and the ball.

[0007] Furthermore, the window is connected to the lock tongue via a rotating shaft, and a rotating handle is provided at one end of the rotating shaft away from the lock tongue, and the rotating handle is located on a side of the window away from the lock tongue.

[0008] Furthermore, a square hole is provided at the center of the lock tongue, and one end of the rotating shaft close to the lock tongue is processed into a square platform matching the square hole.

[0009] Furthermore, a circular hole is provided at the center of the window, and one end of the rotating handle close to the locking tongue passes through the circular hole and is fixedly connected to the rotating shaft.

[0010] Furthermore, a gasket is provided between the rotating handle and the rotating shaft.

[0011] Furthermore, one side of the window is connected to the door panel via a hinge.

[0012] Furthermore, the window frame front pressure plate is fixedly connected to the window frame by bolts.

[0013] Furthermore, the rotating shaft passes through the square hole on the locking tongue and is fastened by a self-locking nut.

[0014] The present invention provides a protective door that is easy to maintain. A lock tongue with a special structure is fixed on both sides of a window frame by rotating a rotary handle, and an elastic positioning piece pops out of a hole reserved on the lock tongue when the lock tongue is rotated to an arc-shaped groove of a front pressure plate of the window frame, thereby further fixing the lock tongue. When opening or closing the window, it is only necessary to rotate the rotary handle on the door, and a door lock and a special key are no longer needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a protective door that is easy to maintain according to the present invention;

[0016] Figure 2 An exploded view of a protective door that is easy to maintain in the present invention;

[0017] Figure 3The present invention is a cross-sectional view of a protective door that is easy to maintain.

[0018] Reference numerals

[0019] 1 door panel, 2 window frame, 3 window frame front pressure plate, 4 window, 5 lock tongue, 6 rotating shaft, 7 rotating handle, 8 hinge, 31 arc groove, 41 boss, 411 elastic positioning piece, 51 hole, 52 square hole, 53 locking nut, 61 gasket, 62 square platform. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0021] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. The terms "vertical", "horizontal", "left", "right", "top", "bottom", "bottom end", "top end" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] The present invention provides a protective door that is easy to maintain, and the protective door that is easy to maintain includes a door panel, a window frame arranged on the door panel, a window frame front pressure plate fixed on the window frame, a window matched with the window frame front pressure plate, and a lock tongue rotatably connected to the window; one side of the window is hinged to the door panel; arc-shaped grooves are respectively arranged on both sides of the window frame front pressure plate; four elastic positioning parts are arranged on a side of the window close to the window frame front pressure plate, and each elastic positioning part is evenly arranged in a "cross" shape; two holes matching the elastic positioning parts are arranged in the direction of the relatively long side of the lock tongue; the lock tongue is rotated so that the two ends of the relatively long side of the lock tongue are stuck in the arc-shaped groove, and the two elastic positioning parts pop out of the holes, and the lock tongue is self-locking.

[0024] The protective door provided by the present invention is easy to maintain. The lock tongue of the special structure is fixed on both sides of the window frame by rotating the rotating handle, and the elastic positioning piece pops out of the hole reserved on the lock tongue when the lock tongue is rotated to the arc groove of the front pressure plate of the window frame, so as to further fix the lock tongue; when opening or closing the window, it is only necessary to rotate the rotating handle on the door, and a door lock and a special key are no longer needed.

[0025] The protective door that is easy to maintain is described below in conjunction with specific embodiments to further understand the inventive concept of the protective door that is easy to maintain.

[0026] In one embodiment, if Figure 1-2 As shown, the protective door that is easy to maintain includes a door panel 1, a window frame 2 arranged on the door panel 1, a window frame front pressure plate 3 fixed on the window frame 2, a window 4 matched with the window frame front pressure plate 3, and a lock tongue 5 rotatably connected to the window 4; one side of the window 4 is hinged to the door panel 1, that is, the window 4 can be opened or closed; arc-shaped grooves 31 are respectively arranged on both sides of the window frame front pressure plate 3, so that after the window frame front pressure plate 3 is fixed on the window frame, an arc space is formed between the window frame front pressure plate 3 and the window frame 2; the window 4 is close to the window frame Four elastic positioning members 411 are provided on one side of the front pressure plate 3, and the elastic positioning members 411 are evenly arranged in a "cross" shape; the lock tongue 5 is in a rhombus shape, and the corners of each rhombus are processed into an arc shape, and two holes 51 matching the elastic positioning members 41 are provided in the direction of the relatively long side of the lock tongue 5, that is, the holes 51 are located on the relatively long diagonal line of the lock tongue 5; the lock tongue 5 is rotated so that the two ends of the relatively long side of the lock tongue 5 are stuck in the arc-shaped groove 31, and at this time, the two elastic positioning members 411 pop out of the holes 51, and the lock tongue 5 is self-locking.

[0027] In another embodiment, if Figure 2As shown, a boss 41 having the same shape as the lock tongue is provided on one side of the window 4 close to the front pressure plate 3 of the window frame, that is, the boss 41 is also in a rhombus shape with four arc-shaped corners; each elastic positioning member 411 is provided on the boss 41, and each elastic positioning member 411 is distributed on the boss 41 in a "cross" shape, that is, the elastic positioning member 411 is respectively located on the diagonal lines of the rhombus boss 41, specifically, the elastic positioning member 411 includes a base and a spring, i.e., a sphere; four sinking holes are provided on the boss 41, the base is installed in the sinking holes, the spring is provided between the base and the sphere, and the surface of the sphere is smooth, so that the sphere can be easily ejected from the hole 51. Rotate the lock tongue 5, when the lock tongue 5 coincides with the boss 41, the two elastic positioning members 411 on the relatively long sides of the boss 41 pop out of the hole 51, that is, the two elastic positioning members 411 located on the long diagonal line pop out of the hole 51, at this time, the two end portions of the relatively long sides of the lock tongue are just stuck in the arc-shaped groove 31, and the lock tongue 5 is self-locking; when the lock tongue 5 is rotated again, when the lock tongue 5 is perpendicular to the boss, the two elastic members 411 on the relatively end sides of the boss 41 pop out of the hole 51, that is, the elastic positioning members 411 distributed on the short diagonal line of the boss 41 pop out of the hole 51, and the lock tongue 5 is opened. Specifically, in the present embodiment, when the elastic positioning member 411 is aligned with the hole 51, the ball pops out of the hole 51 under the action of the spring. When the lock tongue 5 continues to be rotated, the ball will be pressed back into the sinking hole on the boss 41 by the 5 due to its relatively smooth surface. When the lock tongue 5 is perpendicular to the boss 41, the balls of the two elastic positioning members 411 located on the long diagonal line of the boss will pop out of the hole under the action of the spring restoring force. This cycle can be repeated to lock or open the lock tongue 5.

[0028] In another embodiment, if Figure 2 As shown, the window 4 is connected to the lock tongue 5 via a rotating shaft 6, and a rotating handle 7 is provided at one end of the rotating shaft 6 away from the lock tongue 5. The rotating handle 4 is located on a side of the window 5 away from the lock tongue 5, that is, the lock tongue 5 at the other end of the rotating shaft 6 is driven to rotate by rotating the rotating handle 7.

[0029] In another embodiment, if Figure 3 As shown, a square hole 52 is provided at the center of the lock tongue 5, and one end of the rotating shaft 6 close to the lock tongue 5 is processed into a square platform 62 matching the square hole 53, so as to ensure that when the rotating handle 4 is rotated, the rotating shaft 6 can synchronously drive the lock tongue 5 to rotate.

[0030] In another embodiment, a circular hole 42 is provided at the center of the window 4, and the end of the rotating handle 7 close to the lock tongue 5 passes through the circular hole 42 and is fixedly connected to the rotating shaft 6. Specifically, the end of the rotating handle 7 close to the rotating shaft 6 is provided with an external thread, and the end of the rotating shaft 6 close to the rotating handle 7 is processed with an internal thread matching the external thread, that is, the end of the rotating shaft 6 close to the rotating handle 7 is provided with a threaded hole matching the external thread on the rotating handle 4, so that the rotating handle 7 is fixedly connected to the rotating shaft 6 after passing through the circular hole 42 by means of a threaded connection.

[0031] In another embodiment, a gasket 61 is provided between the rotating handle 7 and the rotating shaft 6, and the gasket 61 protects the inner side of the window 4 to prevent the inner side of the door from being worn when the rotating shaft is rotated.

[0032] In another embodiment, when one side of the window 4 is connected to the door panel 1 via a hinge 8 , the hinge 8 is installed on the door 1 via a connecting member 81 .

[0033] In another embodiment, the window frame front pressure plate 3 and the window frame 2 are fixedly connected by bolts.

[0034] In another embodiment, the rotating shaft 6 passes through the square hole 52 on the locking tongue 5 and is fastened by a self-locking nut 53 .

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A protective door that is easy to maintain, characterized in that: The protective door convenient for maintenance comprises a door panel (1), a window frame (2) arranged on the door panel (1), a window frame front pressure plate (3) fixed on the window frame (2), a window (4) matched with the window frame front pressure plate (3), and a lock tongue (5) rotatably connected to the window (4); one side of the window (4) is hinged to the door panel (1); arc-shaped grooves (31) are respectively arranged on both sides of the window frame front pressure plate (3); the window (4) is close to the window frame front pressure plate (3 ) is provided with four elastic positioning members (411) on one side, and the elastic positioning members (411) are evenly arranged in a "cross" shape; two holes (51) matching the elastic positioning members (41) are provided in the direction of the relatively long side of the lock tongue (5); the lock tongue (5) is rotated so that the two ends of the relatively long side of the lock tongue (5) are stuck in the arc-shaped groove (31), and the two elastic positioning members (411) pop out of the holes (51), and the lock tongue (5) is self-locking.

2. A protective door that is easy to maintain according to claim 1, characterized in that: A boss (41) having the same shape as the lock tongue is arranged on one side of the window (4) close to the front pressure plate (3) of the window frame, and each of the elastic positioning members (411) is arranged on the boss (41). When the lock tongue (5) is rotated to overlap with the boss (41), the two elastic positioning members (411) on the relatively long sides of the boss (41) pop out of the hole (51), and the lock tongue (5) is self-locked; when the lock tongue (5) is rotated to be perpendicular to the boss (41), the two elastic members (411) on the relatively short sides of the boss (41) pop out of the hole (51), and the lock tongue (5) is opened.

3. A protective door that is easy to maintain according to claim 2, characterized in that: The elastic positioning member (411) comprises a base, a spring and a round ball; the base is installed in a corresponding sinking hole on the boss (41), and the spring is arranged between the base and the round ball.

4. The protective door that is easy to maintain according to claim 2, characterized in that: The window (4) is connected to the lock tongue (5) via a rotating shaft (6); a rotating handle (7) is provided at one end of the rotating shaft (6) away from the lock tongue (5); and the rotating handle (7) is located on a side of the window (4) away from the lock tongue (5).

5. A protective door that is easy to maintain according to claim 4, characterized in that: A square hole (52) is arranged at the center of the locking tongue (5), and one end of the rotating shaft (6) close to the locking tongue (5) is processed into a square platform (62) matching the square hole (52).

6. The protective door that is easy to maintain according to claim 4, characterized in that: A circular hole (42) is provided at the center of the window (4), and one end of the rotating handle (7) close to the locking tongue (5) passes through the circular hole (42) and is fixedly connected to the rotating shaft (6).

7. The protective door that is easy to maintain according to claim 6, characterized in that: A gasket (61) is provided between the rotating handle (7) and the rotating shaft (6).

8. The protective door that is easy to maintain according to claim 1, characterized in that: One side of the window (4) is connected to the door panel (1) via a hinge (8).

9. The protective door that is easy to maintain according to claim 1, characterized in that: The window frame front pressure plate (3) and the window frame (2) are fixedly connected by bolts.

10. The protective door convenient for maintenance according to claim 4, characterized in that: The rotating shaft (6) passes through the square hole (52) on the locking tongue (5) and is fastened by a self-locking nut (53).

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