A retractable sliding security door

Abstract

The utility model relates to the field of protective equipment, especially in a bottom telescopic translation push -and -pull protective door, including door body, sliding part, protective door includes the blocking seam board, and the both ends of blocking seam board are equipped with respectively and lift the piece, and the top of lift piece is connected with the walking wheel, door body still includes the drive rail, and the drive rail is equipped with the support surface in corresponding two walking wheel positions respectively, and the support surface includes first guide section and second guide section, transition section, second guide section is located in the side of first guide section towards door body closing direction, and second guide section is lower than first guide section, walking wheel is supported at the support surface, and door body is located in the opening door position walking wheel is located in first guide section, so that lift piece will lift the blocking seam board to have the gap with ground, and door body is located in the closing position walking wheel is located in second guide section, so that the blocking seam board drops and ground abuts. The utility model has improved the structure of drive rail and lift piece through the optimization, and effectively solved the problem existing in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of protective equipment, and in particular to a sliding protective door with a retractable bottom. Background Technology

[0002] Protective doors are essential protective equipment in radioactive work areas such as CT rooms. They use lead plates to block radiation from passing through, thus providing protection.

[0003] Sliding protective doors are a common type of protective door. Currently, sliding protective doors are mostly used on flat ground. To prevent gaps between the bottom of the protective door and the ground when it is closed, some prior patents have used retractable baffles at the bottom of the protective door to block such gaps when the door is closed. For example, patent CN221920763U discloses a bottom seam shielding device for a medical radiation shielding door. This device uses a horizontally arranged connecting rod to transmit the horizontal force when closing the door, and uses a slanted groove to convert the horizontal force of the connecting rod into a vertical force to move the shielding strip downwards. When opening the door, the elastic force of a spring drives the shielding strip upwards to retract.

[0004] This structure is quite complex, and its method of using a spring to lift the shielding strip upwards presents challenges. When the spring's elastic force is low, it's difficult to ensure the shielding strip is lifted quickly and promptly when opening the door. Conversely, when the spring's elastic force is high, the force that needs to be overcome when closing the door is significant, increasing the resistance to opening. Furthermore, the spring is prone to aging and damage during use, making it difficult to adjust and control the spring's elastic force.

[0005] Based on this, this application proposes a sliding protective door with a retractable bottom. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a bottom-extendable sliding protective door. By optimizing and improving the structure of the drive rail and lifting components, it effectively solves the problems existing in the prior art.

[0007] To address the aforementioned problems, this utility model provides a bottom-extendable sliding protective door, comprising a door body and a sliding portion disposed at the top of the door body. The protective door includes a gap-blocking plate vertically slidable at the bottom of the door body, with lifting members at both ends of the gap-blocking plate, and a traveling wheel connected to the top of the lifting member. The door body also includes a drive rail, with support surfaces extending along the sliding direction of the door body at positions corresponding to the two traveling wheels. The support surfaces include a first guide section and a second guide section, and a transition section connecting the first and second guide sections. The second guide section is located on the side of the first guide section facing the closing direction of the door body, and the second guide section is lower than the first guide section. The traveling wheel is supported on the support surface. When the door body is in the open position, the traveling wheel is located in the first guide section, allowing the lifting member to raise the gap-blocking plate to a gap with the ground. When the door body is in the closed position, the traveling wheel is located in the second guide section, allowing the gap-blocking plate to descend and abut against the ground.

[0008] Furthermore, the drive rail has a support groove at the support surface position, and the lower wall of the support groove forms the support surface.

[0009] Furthermore, the edge of the traveling wheel is formed with a limiting flange, which can cooperate with the side of the drive rail to prevent the traveling wheel from coming out of the support groove.

[0010] Alternatively, the upper wall of the support channel includes two spaced-apart partitions, and the lower wall of the support channel is located between the two partitions in its vertical projection; the traveling wheel is provided with positioning grooves at the positions of the partitions and the lower wall of the support channel.

[0011] Furthermore, the top of the lifting member is provided with a connecting block, and the traveling wheel and the connecting block are slidably connected vertically. When the traveling wheel moves to the second guide section, there is a downward movement space between the traveling wheel and the connecting block; when the traveling wheel moves to the first guide section, it can drive the connecting block to move upward.

[0012] Furthermore, the connecting block is provided with a sliding groove, the traveling wheel is provided with a connecting shaft, and the end of the connecting shaft away from the traveling wheel extends into the sliding groove and can move up and down in the sliding groove.

[0013] Furthermore, the lifting component includes a lifting rod, and mounting tubes are respectively provided on both sides of the door body, with the lifting rod slidably mounted on the mounting tubes.

[0014] Furthermore, the protective door also includes a sealing frame that can be installed at the doorway, with a sealing strip installed on the side of the sealing frame facing the door body, and the drive rail provided on the top of the sealing frame.

[0015] Furthermore, the bottom of the door body is provided with a receiving groove, and the seam barrier can be lifted and lowered in the receiving groove; the top wall of the receiving groove is provided with a first magnetic attracting member, and the top wall of the seam barrier is provided with a second magnetic attracting member. The first magnetic attracting member and the second magnetic attracting member can be magnetically connected, and the magnetic attraction force of the first magnetic attracting member and the second magnetic attracting member is less than or equal to the sum of the weight of the seam barrier and the lifting member.

[0016] Furthermore, the top wall of the receiving groove is provided with a mounting hole, and a magnet is embedded in the mounting hole. The magnet forms the first magnetic attraction element. The gap plate includes a shell and a lead plate disposed inside the shell. The shell forms the second magnetic attraction element.

[0017] The beneficial effect of this utility model is that by optimizing and improving the structure of the drive rail and the lifting component, the problems existing in the prior art are effectively solved. Attached Figure Description

[0018] 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: 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 shows the structure after removing the door panel and mounting tube.

[0020] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0021] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0022] Figure 5 for Figure 1 The illustrated embodiment is shown as a side cross-sectional view of the lifting rod position.

[0023] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point C.

[0024] Figure 7 for Figure 5 A magnified schematic diagram of the structure at point D.

[0025] Figure 8 For another embodiment of this utility model, see reference. Figure 6 The diagram shows the structure of the part shown.

[0026] The components include: 1. Door body; 2. Sliding part; 3. Joint guard plate; 301. Shell; 302. Lead plate; 4. Walking wheel; 5. Drive rail; 6. First guide section; 7. Second guide section; 8. Transition section; 9. Support through groove; 10. Limiting flange; 11. Partition; 12. Connecting block; 13. Slide groove; 14. Connecting shaft; 15. Lifting rod; 16. Mounting tube; 17. Sealing frame; 18. Sealing strip; 19. Receiving groove; 20. Magnet; 21. Positioning groove. Detailed Implementation

[0027] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] In this utility model, such as Figure 1-8 As shown, a bottom-extendable sliding protective door is provided, including a door body 1 and a sliding part 2 disposed on the top of the door body 1. The protective door includes a gap-blocking plate 3 vertically slidably disposed at the bottom of the door body 1. Lifting members are respectively provided at both ends of the gap-blocking plate 3, and the top of the lifting members is connected to a traveling wheel 4. The door body 1 also includes a drive rail 5. The drive rail 5 is provided with a support surface extending along the pushing and pulling direction of the door body 1 at the positions corresponding to the two traveling wheels 4. The support surface includes a first guide section 6 and a second guide section 7, and a transition section 8 connecting the first guide section 6 and the second guide section 7. The second guide section 7 is located on the side of the first guide section 6 facing the closing direction of the door body 1, and the second guide section 7 is lower than the first guide section 6. The traveling wheel 4 is supported on the support surface. When the door body 1 is in the open position, the traveling wheel 4 is located in the first guide section 6, so that the lifting member lifts the gap-blocking plate 3 to a gap with the ground. When the door body 1 is in the closed position, the traveling wheel 4 is located in the second guide section 7, so that the gap-blocking plate 3 descends to abut against the ground.

[0033] As shown in the figure, the protective door of this utility model has the following characteristics: When the door body 1 is in the open position, the traveling wheel 4 is located in the first guide section 6. At this time, the traveling wheel 4 lifts the gap-blocking plate upwards through the lifting member until there is a gap with the ground, making it easy to push and pull the door body 1. When moving the door body 1 to the closed position, after the traveling wheel 4 moves from the first guide section 6 to the second guide section 7, the traveling wheel 4 moves downwards. At this time, the gap-blocking plate moves downwards under the action of gravity and comes into contact with the ground to cover the gap between the door body 1 and the ground. When the door body 1 moves from the closed position to the open position, the traveling wheel 4 moves from the second guide section 7 to the first guide section 6 and drives the gap-blocking plate 3 upwards, thereby facilitating the opening of the door body 1.

[0034] The protective door of this utility model, when it is necessary for the seam barrier 3 to cover the bottom gap of the door body 1, can move downwards by the weight of the seam barrier 3 after the traveling wheel 4 moves to the second guide section 7. When it is necessary to lift the seam barrier 3, the traveling wheel 4 provides the power to lift the seam barrier 3 by rising from the second guide section 7 to the first guide section 6, without the need for a spring or electric telescopic rod to actively lift the seam barrier, making the structure of this utility model simple and stable in use.

[0035] It should be noted that the improvement of this utility model lies in the extension and retraction of the seam barrier 3. There are no restrictions or improvements on the sliding part 2 at the top of the door body 1, the slide rail that cooperates with the sliding part 2 at the doorway, and the lead plate 302 of the door body 1. Those skilled in the art can flexibly choose existing related technical structures when implementing this invention.

[0036] In the illustrated embodiment, to further specify the structure of this utility model, the drive rail 5 has a support groove 9 at the support surface position, and the lower wall of the support groove 9 forms the support surface.

[0037] As shown in the figure, by setting the support groove 9, the upper wall of the support groove 9 can abut against the traveling wheel 4 to limit the traveling wheel 4 from the top, thereby preventing the traveling wheel 4 from flipping upward under the action of the lifting member in the embodiment shown in the figure.

[0038] In the illustrated embodiment, to further specify the structure of this utility model, the edge of the walking wheel 4 forms a limiting flange 10, which can cooperate with the side of the drive rail 5 to prevent the walking wheel 4 from coming out of the support groove 9.

[0039] As shown in the figure, by setting the limiting flange 10, the walking wheel 4 can be braked to disengage from the support through groove 9, so as to further maintain the stability of the entire device.

[0040] The installation method for the fourth traveling wheel is not limited to... Figures 1 to 7 In the form shown, in an optional embodiment, the upper wall of the support groove 9 may be configured such that the upper wall includes two spaced-apart partitions 11, and the lower wall of the support groove 9, in its vertical projection, lies between the two partitions 11. The traveling wheel 4 is provided with positioning grooves 21 at the positions of the partitions 11 and the lower wall of the support groove 9, respectively. Figure 8As shown, by setting two partitions 11, when the travel wheel 4 lifts the baffle plate 3 to generate an outward rotational torque, the two partitions 11 can effectively suppress the rollover of the travel wheel 4. Moreover, by setting the positioning groove 21, lateral misalignment of the travel wheel 4 can be prevented, thereby further improving the stability of use. Compared with the embodiment with the limiting flange 10, this embodiment can reduce the problem of poor rolling of the travel wheel 4 caused by the contact friction between the limiting flange 10 and the drive rail 5.

[0041] In the illustrated embodiment, more specifically regarding the structure of this utility model, the top of the lifting member is provided with a connecting block 12, the walking wheel 4 is slidably connected to the connecting block 12 in a vertical direction, when the walking wheel 4 moves to the second guide section 7, there is a downward movement space between the walking wheel 4 and the connecting block 12; when the walking wheel 4 moves to the first guide section 6, it can drive the connecting block 12 to move upward.

[0042] By setting the walking wheel 4 and the connecting block 12 to be vertically slidable, the walking wheel 4 can lift the joint plate 3 when it moves to the first guide section 6, and the walking wheel 4 can have a further downward space relative to the connecting block 12 when it moves to the second guide section 7. This prevents the situation where the walking wheel 4 moves on the transition section 8 and further presses down on the connecting block 12 after the joint plate 3 comes into contact with the ground.

[0043] In the illustrated embodiment, for the structure of this utility model, the connecting block 12 is provided with a sliding groove 13, the traveling wheel 4 is provided with a connecting shaft 14, and the end of the connecting shaft 14 away from the traveling wheel 4 extends into the sliding groove 13 and can move up and down in the sliding groove 13.

[0044] In the illustrated embodiment, specifically regarding the structure of this utility model, the lifting member includes a lifting rod 15, and mounting tubes 16 are respectively provided on both sides of the door body 1. The lifting rod 15 is slidably mounted on the mounting tubes 16. Figure 1 As shown, square mounting tubes 16 are provided on both sides of the door body 1. Guide blocks are provided inside the mounting tubes 16. The guide blocks have guide holes through which the lifting rod 15 passes, so as to provide guidance for the lifting rod 15 to move up and down.

[0045] In the illustrated embodiment, to further specify the structure of this utility model, the protective door also includes a sealing frame 17 that can be installed at the doorway. A sealing strip 18 is installed on the side of the sealing frame 17 facing the door body 1, and the drive rail 5 is provided on the top of the sealing frame 17.

[0046] As shown in the figure, the sealing frame 17 can be welded or nailed to the doorway, forming the mounting carrier for the sealing strip 18. The sealing strip 18 can be fixed to the sealing frame 17 by embedding or bonding. The drive rail 5 is fixedly installed on the sealing frame 17, thus allowing the drive rail 5 to be installed and fixed simultaneously with the installation of the sealing frame 17.

[0047] In the illustrated embodiment, to further specify the structure of this utility model, the bottom of the door body 1 is provided with a receiving groove 19, and the seam barrier 3 is movably and height-adjustable in the receiving groove 19; the top wall of the receiving groove 19 is provided with a first magnetic attracting member, and the top wall of the seam barrier 3 is provided with a second magnetic attracting member. The first magnetic attracting member and the second magnetic attracting member can be magnetically connected, and the magnetic attraction force of the first magnetic attracting member and the second magnetic attracting member is less than or equal to the sum of the weights of the seam barrier 3 and the lifting member.

[0048] As shown in the figure, the top wall of the receiving groove 19 has a mounting hole, into which a magnet 20 is embedded. The magnet 20 forms the first magnetic attraction element. The baffle plate 3 includes a shell 301 and a lead plate 302 disposed within the shell 301. The shell 301 can be made of iron and forms the second magnetic attraction element. This arrangement allows the baffle plate 3 to be lifted upwards by the travel path, and the magnetic attraction of the first and second magnetic attraction elements reduces the downward force transmitted from the baffle plate 3 to the traveling wheel 4, thereby further improving the smoothness of the traveling wheel 4's movement within the support groove 9. When the traveling wheel 4 moves from the first guide section 6 through the transition section 8 to the second guide section 7, the weight of the baffle plate 3 and the lifting element overcomes the magnetic attraction of the first and second magnetic attraction elements, causing the baffle plate 3 to move downwards.

[0049] 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.

[0050] 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. A bottom-extendable sliding safety door, comprising a door body and a sliding portion disposed at the top of the door body, characterized in that, The protective door includes a vertically slidable baffle plate at the bottom of the door body, with lifting members at both ends of the baffle plate and a traveling wheel connected to the top of the lifting members; The door also includes a drive rail, and the drive rail is provided with a support surface extending along the pushing and pulling direction of the door at the positions corresponding to the two walking wheels. The support surface includes a first guide section and a second guide section, and a transition section connecting the first guide section and the second guide section. The second guide section is located on the side of the first guide section facing the closing direction of the door, and the second guide section is lower than the first guide section. The traveling wheels are supported on the support surface. When the door is in the open position, the traveling wheels are in the first guide section so that the lifting member lifts the gap plate to a gap with the ground. When the door is in the closed position, the traveling wheels are in the second guide section so that the gap plate descends and abuts against the ground.

2. The bottom-retractable sliding protective door according to claim 1, characterized in that, The drive rail has a support groove at the support surface, and the lower wall of the support groove forms the support surface.

3. The bottom-retractable sliding protective door according to claim 2, characterized in that, The edge of the traveling wheel is formed with a limiting flange, which can cooperate with the side of the drive rail to prevent the traveling wheel from coming out of the support groove.

4. The bottom-retractable sliding protective door according to claim 2, characterized in that, The upper wall of the support channel includes two spaced-apart partitions, and the lower wall of the support channel is located between the two partitions in its vertical projection. The traveling wheel is provided with positioning grooves at the lower wall positions of the split wall and the support through groove, respectively.

5. The bottom-retractable sliding protective door according to claim 1, characterized in that, The top of the lifting component is provided with a connecting block, and the walking wheel is slidably connected to the connecting block in a vertical direction. When the walking wheel moves to the second guide section, there is a downward movement space between the walking wheel and the connecting block. When the walking wheel moves to the first guide section, it can drive the connecting block to move upward.

6. The bottom-retractable sliding protective door according to claim 5, characterized in that, The connecting block is provided with a sliding groove, and the traveling wheel is provided with a connecting shaft. The end of the connecting shaft away from the traveling wheel extends into the sliding groove and can move up and down in the sliding groove.

7. The bottom-retractable sliding protective door according to claim 1, characterized in that, The lifting component includes a lifting rod, and mounting tubes are respectively provided on both sides of the door body. The lifting rod is slidably mounted on the mounting tubes.

8. The bottom-retractable sliding protective door according to claim 1, characterized in that, The protective door also includes a sealing frame that can be installed at the doorway, with a sealing strip installed on the side of the sealing frame facing the door body, and the drive rail provided on the top of the sealing frame.

9. The bottom-retractable sliding protective door according to claim 1, characterized in that, The bottom of the door is provided with a receiving groove, and the seam barrier can be raised and lowered in the receiving groove; the top wall of the receiving groove is provided with a first magnetic attractor, and the top wall of the seam barrier is provided with a second magnetic attractor. The first magnetic attractor and the second magnetic attractor can be magnetically connected, and the magnetic attraction force of the first magnetic attractor and the second magnetic attractor is less than or equal to the sum of the weight of the seam barrier and the lifting member.

10. The bottom-retractable sliding protective door according to claim 9, characterized in that, The top wall of the receiving groove is provided with an installation hole, and a magnet is embedded in the installation hole. The magnet forms the first magnetic attraction element. The gap plate includes a shell and a lead plate disposed inside the shell. The shell forms the second magnetic attraction element.

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