Electric telescopic protective door
By optimizing the installation structure and guide components of the electric telescopic pole, the problem of cumbersome assembly of existing electric safety gates has been solved, achieving the effect of simplified assembly and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINO NOBLE ENVIRONMENTAL ENG (SHANDONG) CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-19
AI Technical Summary
The assembly process of existing electric safety gates is cumbersome, requiring the installation of guide wheels, belt fixing plates, motors, and other structures on both the movable and fixed gate bodies.
The system employs an electric telescopic rod and an optimized installation structure. By fixing one end of the electric telescopic rod inside the storage cavity of the outer door and connecting the other end to the installation cavity of the inner door, the assembly process is simplified. Furthermore, the movement and control of the door are optimized through guide wheels and detection switches.
It simplifies the assembly process of electric safety gates, facilitates the maintenance and replacement of electric telescopic poles, reduces the need for modification of the ground or walls at the installation site, and improves installation stability and maintenance convenience.
Smart Images

Figure CN224260167U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of protective equipment, and in particular to an electrically retractable protective door. Background Technology
[0002] Protective doors are commonly used as entrances to radioactive sites, using lead panels to block radiation. Sliding protective doors are a common type, and in some applications, they are electrically controlled for ease of use. For example, patent CN212428458U discloses an electrically operated sliding door that uses a drive motor and belt to move the door.
[0003] Existing electric safety gates of this type require the installation of guide wheels, belt fixing plates, motors, and other structures on both the movable and fixed gate bodies, making the assembly process rather cumbersome. Therefore, this application proposes an improvement to the electric safety gate. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model provides an electrically retractable protective gate. By optimizing the design of the electrically retractable rod and its installation structure, it effectively solves the problems existing in the prior art.
[0005] To address the aforementioned problems, this utility model provides an electrically retractable protective door, comprising: an outer door body having a storage cavity open at one end; an inner door body slidably mounted in the storage cavity, the inner door body having an installation cavity; and an electrically retractable rod, one end of which is connected to the portion of the outer door body inside the storage cavity, and the other end extending into the installation cavity and connected to the inner door body.
[0006] Furthermore, one end of the cylindrical shell of the electric telescopic rod is fixed to the outer door body, and the other end can extend into the mounting cavity. The shaft of the electric telescopic rod extends out from the cylindrical shell and is connected to the inner door body.
[0007] Furthermore, the end of the shaft away from the cylindrical shell is detachably connected to the inner door body.
[0008] Furthermore, the inner door body is provided with a mounting hole on the side corresponding to the shaft, and the protective door also includes a mounting block, which is connected to the shaft and the side of the inner door body at the mounting hole position by a threaded fastener.
[0009] Furthermore, the end of the cylindrical shell facing the shaft is provided with an inner slider, and the mounting cavity is provided with an inner guide rod that cooperates with the inner slider.
[0010] Furthermore, the inner slider includes an overlapping portion that overlaps the upper side of the inner guide rod.
[0011] Furthermore, the outer door body includes two spaced-apart outer door frames, with the storage cavity formed between the two outer door frames, and the outer door frame includes spaced-apart horizontal bars and vertical bars;
[0012] One of the outer door frames is attached with a protective panel, and the other outer door frame is attached with a decorative panel. The outer door frame with the decorative panel attached has an installation space at the position of the electric telescopic rod, and the installation space allows the electric telescopic rod to enter and exit the storage cavity.
[0013] Furthermore, the outer door body is provided with a guide assembly in the storage cavity, the guide assembly including two rows of guide wheels, the guide wheels abutting against the two panels of the inner door body respectively.
[0014] Furthermore, the outer door body is provided with a detection switch on the side of the mounting cavity away from the inner door body.
[0015] Furthermore, the inner door body includes an inner door frame and an inner door panel covering the inner door frame, and the inner door frame is provided with an inner support rod at the position corresponding to the guide wheel.
[0016] The beneficial effect of this utility model is that by optimizing the electric telescopic pole and its installation structure, it effectively solves the problems existing in the prior art. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0018] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0019] Figure 2 for Figure 1 The illustrated embodiment is shown as a structural schematic diagram from another perspective.
[0020] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0021] The components are: 1. Outer door body; 101. Outer door frame; 102. Protective plate; 2. Inner door body; 201. Inner door frame; 202. Inner door panel; 3. Electric telescopic rod; 301. Cylinder shell; 302. Shaft; 4. Mounting block; 5. Inner slider; 501. Overlapping part; 6. Inner guide rod; 7. Storage cavity; 8. Mounting cavity; 9. Installation space; 10. Guide wheel; 11. Detection switch. Detailed Implementation
[0022] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.
[0023] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0024] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected by an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0026] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0027] In this utility model, such as Figure 1-3As shown, an electrically retractable protective door is provided, comprising: an outer door body 1 having a storage cavity 7 open at one end; an inner door body 2 slidably mounted in the storage cavity 7, the inner door body 2 having a mounting cavity 8; and an electrically retractable rod 3, one end of which is connected to the portion of the outer door body 1 inside the storage cavity 7, and the other end extending into the mounting cavity 8 and connected to the inner door body 2.
[0028] During assembly, the sliding protective door of this utility model can use a pre-made electric telescopic rod 3. Only one end of the electric telescopic rod 3 needs to be fixed to the storage cavity 7 of the outer door body 1, and the other end to the mounting cavity 8 of the inner door body 2. This arrangement simplifies the assembly structure and process of the electric components of the entire protective door and facilitates future maintenance and replacement of the electric telescopic rod 3. This utility model allows for flexible placement of the electric telescopic rod 3 at multiple vertical positions within the mounting cavity 8 and storage cavity 7, without requiring modifications to the floor, walls, or ceiling at the installation site.
[0029] In the accompanying drawings of this utility model, in order to better show the installation structure of the electric telescopic rod, the outer side of the inner door (the part with the door panel is the inner side) is removed from the display, and the decorative panel of the outer door is removed from the display.
[0030] In a preferred embodiment, specifically regarding the structure of this utility model, one end of the cylindrical shell 301 of the electric telescopic rod 3 is fixed to the outer door body 1, and the other end can extend into the mounting cavity 8. The shaft 302 of the electric telescopic rod 3 extends out from the cylindrical shell 301 and is connected to the inner door body 2. As shown in the figure, the cylindrical shell 301 is installed on the outer door body 1, which allows the electric control structure at the tail end of the electric telescopic rod 3 to be arranged in the relatively large space of the outer door body 1 and the storage cavity 7. It also allows for convenient assembly and disassembly of the electric telescopic rod 3 for easy maintenance.
[0031] In an alternative embodiment, the cylindrical shell 301 may be installed in the mounting cavity 8 of the inner door body 2, and the shaft 302 may be connected to the storage cavity 7 of the outer door body 1.
[0032] In the illustrated embodiment, more specifically, regarding the structure of this utility model, the end of the shaft 302 away from the cylindrical shell 301 is detachably connected to the inner door body 2.
[0033] As shown in the figure, this makes it easier to disassemble the electric telescopic pole 3 when needed.
[0034] In the illustrated embodiment, to further specify the structure of this utility model, the inner door body 2 is provided with a mounting hole on the side corresponding to the shaft 302, and the protective door also includes a mounting block 4. The mounting block 4 is connected to the shaft 302 and the side of the inner door body 2 at the mounting hole position by a threaded fastener.
[0035] As shown in the figure, the mounting block 4 has five connection holes. Four of the connection holes are distributed at the four corners of a rectangle, and one connection hole is located in the middle of the rectangle (virtual installation position). Bolts can be used as threaded fasteners. The bolts fix the mounting block 4 to the shaft 302 through the middle connection hole, and fix the mounting block 4 to the side of the inner door body 2 through the connection holes at the four corners, thus completing the fixation.
[0036] When it is necessary to disassemble or assemble the electric telescopic rod 3, the mounting block 4 can be removed and the inner door body 2 can be pulled outward to disengage the electric telescopic rod 3 from the mounting cavity 8.
[0037] In the illustrated embodiment, more specifically regarding the structure of this utility model, the end of the cylindrical shell 301 facing the shaft 302 is provided with an inner slider 5, and the mounting cavity 8 is provided with an inner guide rod 6 that cooperates with the inner slider 5.
[0038] As shown in the figure, by setting the inner slider 5, one end of the cylinder shell 301 can be fixed to the outer door body 1, and the other end is supported by the inner slider 5 and the inner guide rod 6, so as to further improve the installation stability of the telescopic rod.
[0039] In the illustrated embodiment, regarding the structure of the inner slider 5 and the inner guide rod 6, more specifically, the inner slider 5 includes an overlapping portion 501 that overlaps the upper side of the inner guide rod.
[0040] As shown in the figure, the inner guide rod is fixed to the inner side of the inner door frame 201, and the inner slider 5 is fixed to the end of the cylinder shell 301 by bolts. The overlapping part 501 is set as a lug that overlaps the inner guide rod. In this way, during assembly, the shaft 302 and the inner slider 5 enter from the right side of the mounting cavity 8 of the inner door body 2, and the overlapping part 501 overlaps the inner guide rod, which makes the assembly of the left end of the cylinder shell 301 simpler.
[0041] In the illustrated embodiment, for the structure of this utility model, more specifically, the outer door body 1 includes two spaced-apart outer door frames 101, and the storage cavity 7 is formed between the two outer door frames 101. The outer door frame 101 includes spaced-apart horizontal bars and vertical bars; one of the outer door frames 101 is attached with a protective plate 102, and the other outer door frame 101 is attached with a decorative plate. The outer door frame 101 with the decorative plate attached has an installation space 9 at the position of the electric telescopic rod 3. The installation space 9 allows the electric telescopic rod 3 to enter and exit the storage cavity 7.
[0042] As shown in the figure, the protective plate 102 is set on the outer side of the inner outer door frame 101, and the decorative plate is directly fixed to the outer outer door frame 101. When it is necessary to disassemble or assemble the electric telescopic rod 3, the decorative plate of the outer outer door frame 101 can be removed. At this time, the electric telescopic rod 3 can be inspected and disassembled through the installation space 9, which facilitates operation. After the disassembly and assembly of the electric telescopic rod 3 is completed, when the decorative plate is installed on the outer outer door frame 101, it can be connected by bonding, welding or bolting.
[0043] Regarding the installation of decorative panels, existing thin color steel sheets are preferred as decorative panels.
[0044] In the illustrated embodiment, to further specify the structure of this utility model, the outer door 1 is provided with a guide assembly in the storage cavity, the guide assembly includes two rows of guide wheels 10, and the guide wheels 10 abut against the two surfaces of the inner door 2 respectively.
[0045] As shown in the figure, two guide components are provided vertically. The inner door 2 is guided by the guide wheel 10 to move, thereby making the movement of the inner door 2 smoother and reducing the load on the electric telescopic rod 3.
[0046] In the illustrated embodiment, the bottom of the inner door body 2 is provided with rollers, and the side of the rollers is provided with a protective plate 102, so that the inner door body 2 does not need to be installed with a ground rail or a hanging rail during on-site assembly, thereby further simplifying the on-site installation procedure.
[0047] In the illustrated embodiment, more specifically, regarding the structure of this utility model, the outer door body 1 is provided with a detection switch 11 on the side of the mounting cavity 8 away from the inner door body 2.
[0048] As shown in the figure, by setting a detection switch 11, the inner door 2 can be retracted by the electric telescopic rod 3, and the retraction limit position of the inner door 2 can be detected by the detection switch 11, so as to facilitate the control of the electric telescopic rod 3 by the detection signal of the detection switch 11.
[0049] In the illustrated embodiment, for the structure of this utility model, more specifically, the inner door body 2 includes an inner door frame 201 and an inner door panel 202 covering the inner door frame 201, and the inner door frame 201 is provided with an inner support rod at the position corresponding to the guide wheel 10.
[0050] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on its differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.
[0051] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. An electrically retractable protective gate, characterized in that, include: The outer door body has a storage cavity that is open at one end; The inner door body is slidably installed in the storage cavity, and the inner door body is provided with an installation cavity; An electric telescopic rod, one end of which is connected to the portion of the outer door body inside the storage cavity, and the other end extends into the mounting cavity and is connected to the inner door body.
2. The electrically retractable protective door according to claim 1, characterized in that, One end of the cylindrical shell of the electric telescopic rod is fixed to the outer door body, and the other end can extend into the mounting cavity. The shaft of the electric telescopic rod extends out of the cylindrical shell and is connected to the inner door body.
3. The electrically retractable protective door according to claim 2, characterized in that, The end of the shaft away from the cylindrical shell is detachably connected to the inner door body.
4. The electrically retractable protective door according to claim 3, characterized in that, The inner door body has a mounting hole on the side corresponding to the shaft. The protective door also includes a mounting block, which is connected to the shaft and the side of the inner door body at the mounting hole position by a threaded fastener.
5. The electrically retractable protective door according to claim 2, characterized in that, The end of the cylindrical shell facing the shaft is provided with an inner slider, and the mounting cavity is provided with an inner guide rod that cooperates with the inner slider.
6. The electrically retractable protective door according to claim 5, characterized in that, The inner slider includes an overlapping portion that overlaps the upper side of the inner guide rod.
7. The electrically retractable protective door according to claim 2, characterized in that, The outer door body includes two spaced-apart outer door frames, and the storage cavity is formed between the two outer door frames. The outer door frame includes spaced-apart horizontal bars and vertical bars. One of the outer door frames is attached with a protective panel, and the other outer door frame is attached with a decorative panel. The outer door frame with the decorative panel attached has an installation space at the position of the electric telescopic rod, and the installation space allows the electric telescopic rod to enter and exit the storage cavity.
8. The electrically retractable protective door according to claim 1, characterized in that, The outer door is provided with a guide assembly in the storage cavity. The guide assembly includes two rows of guide wheels, which abut against the two surfaces of the inner door respectively.
9. The electrically retractable protective door according to claim 1, characterized in that, The outer door body is equipped with a detection switch on the side of the mounting cavity away from the inner door body.
10. The electrically retractable protective door according to claim 8, characterized in that, The inner door body includes an inner door frame and an inner door panel covering the inner door frame. The inner door frame is provided with an inner support rod at the position corresponding to the guide wheel.