Protective fence door convenient to operate

Abstract

The protective fence door convenient to operate comprises a door leaf, a door post, a door shaft, a first door plate, a second door plate, a third door plate and a fourth door plate, in the transportation process, when the door leaf is in the initial state, the fourth door plate is located in the third door plate, the third door plate is located in the second door plate, the second door plate is located in the first door plate, and the fourth door plate is located in the second door plate. At the moment, the door leaf is smallest in size and convenient to transport; when the fence door is installed and used, the door leaf is in an unfolded state, the second door plate and the third door plate are transversely pulled out of the first door plate and adjusted to be suitable for the width size of the door frame, then the third door plate and the fourth door plate are vertically pulled out and adjusted to be suitable for the height size of the door frame, the door leaf is fixed, and installation can be conducted. In this way, no large gap exists after the fence door is installed, safety is improved, and lawless persons or certain animals cannot enter the warehouse from the gap to cause loss. Therefore, the problems that transportation is troublesome and the safety is low are solved through the adjustable door leaf at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of fence doors, in particular to a fence door for protection which is convenient to operate. Background Art

[0002] A fence door is a common protective device, mostly used for the protection of non-permanent or temporarily built places, such as the warehouses of some construction sites. The door leaf of the existing protective fence door is of an integral structure, mostly non-detachable and non-adjustable, with a large volume during transportation, which is rather troublesome; moreover, when the fence door is in use, sometimes the fence door may not match the height or width of the door frame to be protected. After installing the fence door, there will be a large gap, and the safety is relatively low. Lawbreakers or some animals may enter the warehouse through the gap, causing unnecessary losses. Content of the Utility Model

[0003] The purpose of the utility model is to design a fence door for protection which is convenient to operate to solve the problems put forward in the background art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: It includes door posts, door shafts and a door leaf arranged between the door shafts and the door posts. The door leaf includes a first door panel hinged to the door shaft, a second door panel slidably connected to the first door panel, a third door panel slidably connected to the second door panel, and a fourth door panel slidably connected to the third door panel. In the initial state, the fourth door panel is inside the third door panel, the third door panel is inside the second door panel, and the second door panel is inside the first door panel; in the unfolded state, by changing the positions of the second door panel, the third door panel and the fourth door panel, the width and height dimensions of the door leaf can be modified. The second door panel can only slide horizontally, the fourth door panel can only slide vertically, the third door panel and the second door panel are fixed after sliding horizontally at the same time, and the third door panel and the fourth door panel are fixed after sliding vertically at the same time.

[0005] Further, a first internal thread post and a second internal thread post are fixedly connected to the first door panel. A first dovetail groove is arranged on the inner wall of the first door panel near the first internal thread post. A first boss matched with the first dovetail groove is fixedly connected to the second door panel. By screwing in a first bolt matched with the first internal thread post, the first boss can be made to closely adhere to the first bolt.

[0006] Further, a second dovetail groove is arranged on the inner wall of one end of the first door panel near the door shaft. A second boss matched with the second dovetail groove is arranged on the fourth door panel.

[0007] Furthermore, a boss three is fixedly connected to the door panel one, a tooth bar one is provided on the boss two on the door panel four, and a threaded hole is provided on the inner wall of the door panel one which is away from the boss three. The threaded hole is aligned with the gap of the tooth bar one, and a bolt two which cooperates with the threaded hole can be screwed in.

[0008] Furthermore, a boss four is fixedly connected to the door panel two, a bar tooth two is provided on the end of the door panel three away from the door axis, and an internal thread column three is provided on the side of the door panel two away from the boss four, so that the internal thread column three is aligned with the gap of the bar tooth two, and a bolt three that cooperates with the internal thread column three can be screwed in.

[0009] Furthermore, the bottom of the door shaft is fixedly connected to a bottom plate, and the bottoms of the door shaft and the door post are both fixedly connected to the bottom plate. The bottom plate is provided with a plurality of mounting through holes 1, and the mounting through holes 1 are mounted by bolts 4.

[0010] Furthermore, the door panel 1 is provided with a groove 1 avoiding the internal thread column 3.

[0011] Furthermore, the second door panel is provided with a lock connected to the door post, and the first door panel is provided with a second groove avoiding the lock.

[0012] Furthermore, a plurality of mounting through holes 2 are provided on one end of the door shaft close to the door panel 1; a plurality of mounting through holes 3 are provided on one end of the door post close to the door panel 2, and the mounting through holes 2 and the mounting through holes 3 are installed by bolts 5.

[0013] Compared with the prior art, the utility model has the following beneficial effects: during transportation, the door leaf is in the initial state, at which time the door leaf has the smallest volume and is in a stable state, which is convenient for transportation; when the fence door is installed and used, the door leaf is in an expanded state, and according to the width and height of the door frame, the door panels 2 and 3 are pulled out horizontally from the door panel 1, adjusted to the width of the door frame, and then the door panels 3 and 4 are pulled out vertically, adjusted to the height of the door frame, and the door leaf is fixed for installation. In this way, there will be no large gap after the fence door is installed, which improves safety, and criminals or certain animals cannot enter the warehouse through the gap to cause losses; therefore, the utility model solves the problems of transportation trouble and low safety at the same time through the adjustable door leaf. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0015] Figure 1 It is a schematic diagram of the overall structure of the front side of the utility model;

[0016] Figure 2It is a schematic cross-sectional structure diagram of the front side;

[0017] Figure 3 It is a schematic structure diagram of the upper part of the back side;

[0018] Figure 4 It is a schematic cross-sectional view of the first internal thread post

[0019] Figure 5 It is a schematic cross-sectional view of the fourth boss.

[0020] Wherein: 1. The first door panel; 2. The second door panel; 3. The third door panel; 4. The fourth door panel; 5. The door hinge; 6. The door post; 7. The lock; 8. The third internal thread post; 9. The first internal thread post; 10. The third boss; 11. The fourth boss; 12. The first boss; 13. The first strip tooth; 14. The second boss; 15. The second strip tooth; 16. The first bolt; 17. The third bolt; 18. The first groove; 19. The second groove. Specific implementation mode

[0021] In order to further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, detail the specific implementation mode, structure, features and their effects of the present utility model as follows.

[0022] Embodiment: Please refer to Figures 1-5 , a protective fence door that is easy to operate, including a door leaf, a door post 6 and a door hinge 5. The door leaf includes a first door panel 1 hinged to the door hinge 5, a second door panel 2 slidably connected to the first door panel 1, a third door panel 3 slidably connected to the second door panel 2, and a fourth door panel 4 slidably connected to the third door panel 3. The fourth door panel 4 is also slidably connected to the first door panel 1. The second door panel 2 can only slide horizontally, the fourth door panel 4 can only slide vertically, the third door panel 3 and the second door panel 2 are fixed after sliding horizontally at the same time, and the third door panel 3 and the fourth door panel 4 are fixed after sliding vertically at the same time; when the fence door is installed and used, the door leaf will be in an unfolded state. First, place the door leaf flat on the ground, and according to the width and height dimensions of the door frame, horizontally pull out the second door panel 2 and the third door panel 3 from the first door panel 1, adjust to the width dimension suitable for the door frame, then vertically pull out the third door panel 3 and the fourth door panel 4, adjust to the height dimension suitable for the door frame, and install after fixing. In this way, there will be no large gaps after installing the fence door, improving safety, and preventing lawbreakers or certain animals from entering the warehouse through the gaps and causing losses; in addition, during transportation, the door leaf is in the initial state, the fourth door panel 4 is inside the third door panel 3, the third door panel 3 is inside the second door panel 2, and the second door panel 2 is inside the first door panel 1. At this time, the volume of the door leaf is the smallest, which is convenient for transportation.

[0023] In this embodiment, an internal thread column 19 and an internal thread column 2 are fixedly connected to the door panel 1, a dovetail groove 1 is provided on the inner wall of the door panel 1 near the internal thread column 9, a boss 12 matched with the dovetail groove 1 is fixedly connected to the door panel 22, and a bolt 16 matched with the internal thread column 9 is screwed in so that the bolt 16 can abut against the boss 12; during transportation, the door panel 22 is fixed in the door panel 1 by the abutment between the bolt 16 and the boss 12; when the fence door is installed and used, the boss 12 allows the door panel 22 to slide only horizontally; a dovetail groove 2 is provided on the inner wall of one end of the door panel 1 near the door shaft 5, and a boss 2 14 matched with the dovetail groove 2 is provided on the door panel 44; the boss 2 14 allows the door panel 44 to slide only vertically.

[0024] In this embodiment, a boss three 10 is fixedly connected to the door panel one, a boss two 14 on the door panel four 4 is provided with a bar tooth one 13, and a threaded hole is provided on the inner wall of the door panel one 1 on the side away from the boss three 10. The threaded hole is aligned with the gap of the bar tooth one 13, and a bolt two matching with the threaded hole can be screwed in, so that the tooth surface of the bar tooth one 13 abuts against the outer circle of the bolt two, thereby clamping the bar tooth one 13 and preventing the door panel four 4 from sliding vertically. The door panel 2 is fixed with a boss 4 11, and the end of the door panel 3 3 away from the door shaft 5 is provided with a tooth bar 2 15, and the side of the door panel 2 2 away from the boss 4 11 is provided with an internal thread column 3 8, so that the internal thread column 3 8 is aligned with the gap of the tooth bar 2 15, and the bolt 3 17 matched with the internal thread column 3 8 can be screwed in; the tooth surface of the tooth bar abuts against the outer circle of the bolt, clamping the tooth bar 2 15, so that the door panel 3 3 will not slide vertically, the internal thread column 3 8 increases the thickness of the threaded hole, thereby enhancing the strength of the threaded connection, and the boss 4 11 facilitates the door panel 2 2 and the door panel 3 3 to be stably pulled out horizontally from the door panel 1. The door panel 1 is provided with a groove 18 to avoid the internal thread column 3 8, so that the internal thread column 3 8 will not interfere with the door panel 1 in the initial state.

[0025] In this embodiment, the bottom of the door shaft 5 and the door column 6 are fixedly connected to a bottom plate, and a plurality of installation through holes 1 are provided on the bottom plate, and the installation through holes 1 are installed by bolts 4; when installing the fence door, holes corresponding to the installation through holes are first punched on the ground, and the installation through holes are aligned with the holes on the ground, and then the expansion bolts can be inserted to complete the installation. The door panel 2 is provided with a lock 7 connected to the door column 6, and the door panel 1 is provided with a groove 2 19 avoiding the lock 7, so that the lock 7 will not interfere with the door panel 1 in the initial state. The lock 7 adopts a common door bolt, which has a simple structure and high strength.

[0026] In other embodiments, several mounting through-holes II are provided at one end of the door hinge 5 close to the door panel 1; several mounting through-holes III are provided at one end of the door post 6 close to the door panel 2, and the mounting through-holes II and the mounting through-holes III are installed by bolts V; when installing the fence door, if the ground at the door frame position is not convenient for installing the door hinge 5 and the door post 6, the door hinge 5 and the door post 6 can be installed on the wall through the mounting through-holes III and the mounting through-holes IV, and the installation process is the same as the ground installation process.

[0027] Working principle: During transportation, when the door leaf is in the initial state, that is, the door panel 4 is inside the door panel 3, the door panel 3 is inside the door panel 2, and the door panel 2 is inside the door panel 1, tighten the bolt I 16, the bolt II and the bolt III 17 to fix their positions. At this time, the volume of the door leaf is the smallest and the state is stable, which is convenient for transportation; when the fence door is installed and used, the door leaf is in the unfolded state. Place the door leaf flat on the ground, loosen the bolt I 16, the bolt II and the bolt III 17, and pull the door panel 2 and the door panel 3 horizontally out of the door panel 1 according to the width and height dimensions of the door frame, adjust to the width dimension suitable for the door frame, and then pull the door panel 3 and the door panel 4 vertically out to adjust to the height dimension suitable for the door frame. Then tighten the bolt I 16, the bolt II and the bolt III 17, and then the installation of the fence door can be carried out; the fence door installed in this way will not have large gaps, improving safety, and lawbreakers or certain animals cannot enter the warehouse through the gaps to cause losses; therefore, the present utility model solves the problems of troublesome transportation and low safety through the adjustable door leaf.

[0028] It should be noted that when an element is referred to as being "fixedly connected to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are only for the purpose of illustration.

[0029] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to form equivalent embodiments with equivalent changes, but as long as the technical content of the present invention is not departed from, any brief modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A protective fence door that is easy to operate, comprising a door post (6), a door shaft (5) and a door leaf arranged between the door shaft (5) and the door post (6), characterized in that: The door leaf comprises a door panel one (1) hinged on the door shaft (5), a door panel two (2) slidably connected to the door panel one (1), a door panel three (3) slidably connected to the door panel two (2) and a door panel four (4) slidably connected to the door panel three (3), the door panel two (2) can only slide in the horizontal direction, the door panel four (4) can only slide in the vertical direction, the door panel three (3) and the door panel two (2) are fixed after sliding in the horizontal direction at the same time, and the door panel three (3) and the door panel four (4) are fixed after sliding in the vertical direction at the same time.

2. The easy-to-operate protective fence door according to claim 1, characterized in that: The door panel one (1) is fixedly connected with an internal thread column one (9) and an internal thread column two, and a dovetail groove one is provided on the inner wall of the door panel one (1) close to the internal thread column one (9), and the door panel two (2) is fixedly connected with a boss one (12) matched with the dovetail groove one, and by screwing in a bolt one (16) matched with the internal thread column one (9), the boss one (12) can be tightly attached to the bolt one (16).

3. The easy-to-operate protective fence door according to claim 1, characterized in that: The inner wall of one end of the door panel (1) close to the door shaft (5) is provided with a dovetail groove 2, and the door panel (4) is provided with a boss 2 (14) matched with the dovetail groove 2.

4. The easy-to-operate protective fence door according to claim 3, characterized in that: The door panel one (1) is fixedly connected with a boss three (10), the boss two (14) on the door panel four (4) is provided with a tooth bar one (13), and the inner wall of the door panel one (1) which is away from the boss three (10) is provided with a threaded hole, and after the threaded hole is aligned with the gap of the tooth bar one (13), a bolt two which matches with the threaded hole can be screwed in.

5. The easy-to-operate protective fence door according to claim 1, characterized in that: A boss four (11) is fixedly connected to the door panel two (2), a tooth bar two (15) is provided on the end of the door panel three (3) away from the door shaft (5), and an internal thread column three (8) is provided on the side of the door panel two (2) away from the boss four (11), so that the internal thread column three (8) is aligned with the gap of the tooth bar two (15), and a bolt three (17) matching with the internal thread column three (8) can be screwed in.

6. The easy-to-operate protective fence door according to claim 1, characterized in that: The bottoms of the door shaft (5) and the door column (6) are fixedly connected to a bottom plate, and the bottom plate is provided with a plurality of mounting through holes.

7. The easy-to-operate protective fence door according to claim 5, characterized in that: The door panel one (1) is provided with a groove one (18) avoiding the internal thread column three (8).

8. The easy-to-operate protective fence door according to claim 1, characterized in that: The second door panel (2) is provided with a lock (7) connected to the door post (6), and the first door panel (1) is provided with a second groove (19) avoiding the lock (7).

9. The easy-to-operate protective fence door according to claim 1, characterized in that: The door shaft (5) is provided with a plurality of mounting through holes (2) at one end close to the door panel (1); and the door column (6) is provided with a plurality of mounting through holes (3) at one end close to the door panel (2).

10. The easy-to-operate protective fence door according to claim 1, characterized in that: In the initial state, the door panel four (4) is located inside the door panel three (3), the door panel three (3) is located inside the door panel two (2), and the door panel two (2) is located inside the door panel one (1).

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