Monorail electric retractable door

Abstract

The utility model provides a monorail electric retractable door, which relates to the field of access control management, and comprises a monorail retractable door body and a door frame arranged outside the monorail retractable door body, a plurality of built-in rollers are uniformly distributed at two ends of the door frame, and the built-in rollers are connected to corresponding positions on the door frame through a wheel carrier assembly. An outer wheel is arranged in the wheel carrier assembly and can move up and down relative to the interior of the wheel carrier assembly. According to the invention, the built-in roller, the outer wheel and the reset spring form an ingenious collaborative system, so that the roller can be ensured to be in close and good contact with the ground all the time, and stable rolling is realized. Compared with a traditional retractable door with a fixed roller structure, the retractable door has the advantages that the phenomenon that the door body is stuck due to the uneven ground is greatly reduced, and the running continuity and reliability of the door body are powerfully guaranteed. Due to the fact that blocking and strenuous vibration can be effectively avoided in the operation process, uneven resistance borne by all parts of the door body is obviously reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of access control management, especially a single track electric telescopic door. BACKGROUND

[0002] In the field of access control management of modern buildings and industrial facilities, the single track electric telescopic door is widely used due to its small space occupation, flexible opening and other characteristics. However, the traditional single track electric telescopic door has many defects in actual use. The roller structure is usually designed to be fixed, which is helpless when facing complex and changeable ground conditions.

[0003] When the telescopic door operates on uneven ground, such as road surface with slight ups and downs, potholes or gaps, the roller cannot adapt to the height change, which easily leads to the phenomenon of jamming of the door body. The jamming not only produces a harsh noise that disturbs the surrounding environment, but also causes the door body to receive uneven resistance during movement, accelerates the wear of the roller and track, and shortens the service life of the door body. In severe cases, it may even cause the door body to derail, affecting its normal opening and closing functions, bringing great inconvenience to the entry and exit of personnel and vehicles, and reducing the efficiency and safety of access control management. In addition, the traditional fixed roller structure is often complex and tedious to operate when maintaining or replacing the roller, which consumes a lot of manpower and time cost, and is difficult to meet the modern efficient and convenient facility maintenance requirements.

[0004] Therefore, a single track electric telescopic door is proposed, the roller structure of which can automatically adjust the height according to the ups and downs of the ground, effectively ensuring that the roller is always in good contact with the ground and rolls smoothly, thereby significantly improving the smoothness and stability of the door body operation. SUMMARY

[0005] The utility model aims at the deficiencies in the prior art, through the ingenious coordination system composed of the built-in roller, the outer wheel and the return spring, the roller can always be in close and good contact with the ground and rolls smoothly. Compared with the telescopic door with traditional fixed roller structure, it greatly reduces the door body jamming phenomenon caused by uneven ground, and effectively guarantees the continuity and reliability of the door body operation. Since the jamming and violent vibration can be effectively avoided during operation, the uneven resistance borne by the door body components is significantly reduced.

[0006] In order to solve the above technical problems, the utility model solves the problem that the roller structure on the existing telescopic door frame can automatically adjust the height according to the ground ups and downs through the following technical scheme.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A single track electric telescopic door, including single track telescopic door body and door frame arranged outside single track telescopic door body, a plurality of built-in rollers are uniformly arranged at both ends of the door frame, the built-in rollers are connected to the corresponding positions of the door frame through the wheel carrier assembly, the wheel carrier assembly is internally provided with an outer wheel, the outer wheel can be up and down relative to the inside of the wheel carrier assembly, and the wheel carrier assembly and the outer wheel are correspondingly provided with a reset spring.

[0009] Preferably, the wheel carrier assembly comprises a top plate and a support plate, the support plate has two groups, and the two groups of support plates are screw-connected with the top plate through a plurality of fastening bolts.

[0010] Preferably, the lower end of the top plate is provided with a notch, the built-in roller and the outer wheel are connected through a connecting shaft, and the connecting shaft penetrates to the outside of the notch at both ends.

[0011] Preferably, the built-in roller is movably arranged in the outer wheel and is rotationally connected relative to the connecting shaft.

[0012] Preferably, the upper and lower ends of the reset spring are symmetrically provided with stabilizing plates, the upper stabilizing plate is in contact with the bottom of the top plate, and the lower stabilizing plate is in contact with the top of the outer wheel.

[0013] Preferably, the upper and lower stabilizing plates are connected with clamping inserts, the clamping insert on the upper stabilizing plate is inserted into the slot at the bottom of the top plate, and the clamping insert on the lower stabilizing plate is inserted into the slot at the top of the outer wheel.

[0014] Preferably, the insertion end of the clamping insert is configured in a sharp state.

[0015] Preferably, one end of the support plate towards the door frame is connected with a mounting shaft, the bottom of the door frame is correspondingly provided with a mounting hole, the mounting hole allows the mounting shaft to pass through, and an end plate is arranged at the end passing through to limit.

[0016] Preferably, the end plate is connected with a connecting screw rod, and the connecting screw rod is screw-connected to the inside of the mounting shaft.

[0017] Preferably, both ends of the outer shaft of the mounting shaft are sleeved with stabilizing rings, one end of the stabilizing ring is located between the inner side wall of the door frame and the end plate, and the other end of the stabilizing ring is located between the outer side wall of the door frame and the support plate.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The monorail electric retractable door provided by the application can ensure that the rollers are in close and good contact with the ground at all times and achieve smooth rolling through the ingenious coordination system formed by the built-in rollers, the external rollers and the return springs. Compared with the retractable door with the traditional fixed roller structure, the door greatly reduces the door body jamming phenomenon caused by uneven ground and effectively guarantees the continuity and reliability of the door body operation. Due to the effective avoidance of jamming and violent vibration during operation, the uneven resistance borne by the door body components is significantly reduced.

[0020] The connection mode adopted between the components of the application for easy disassembly and installation has great advantages. For example, the top plate and the support plate in the wheel carrier assembly are connected through fastening bolts, the mounting shaft and the door frame are limitingly connected through the cooperation of the end plate and the connecting screw rod, etc. These connection modes enable the maintenance personnel to easily disassemble the damaged components and quickly install new components without the need for complex tools and tedious steps. The maintenance time is greatly shortened, and the efficiency and convenience of facility maintenance are improved. Due to the simplicity of component replacement and maintenance operation, the required human resources are also correspondingly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 It is a schematic diagram of the split local structure of the present application;

[0024] Figure 3 It is a schematic diagram of the left side view of the split local structure of the present application;

[0025] Figure 4 It is a schematic diagram of the split local structure of the built-in rollers, the wheel carrier assembly, the external rollers, the mounting shaft and the end plate of the present application;

[0026] Figure 5 It is a schematic diagram of the top view of the split local structure of the top plate and the return spring of the present application;

[0027] Figure 6 It is a schematic diagram of the right side view of the split local structure of the wheel carrier assembly, the external rollers and the mounting shaft of the present application;

[0028] Figure 7 It is a schematic diagram of the split local structure of the present application Figure 3Enlarged structural schematic view at A.

[0029] Figure number explanation: 1, monorail telescopic door body; 2, door frame; 201, mounting hole; 3, built-in roller; 301, connecting shaft; 4, wheel carrier assembly; 401, top plate; 4011, fastening bolt; 402, support plate; 4022, notch; 403, return spring; 404, stabilizing plate; 405, clamping insert; 5, outer wheel; 6, mounting shaft; 601, stabilizing ring; 7, end plate; 701, connecting screw. DETAILED DESCRIPTION

[0030] The utility model will be described in further detail below in combination with the drawings.

[0031] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought of by those skilled in the art. The basic principles of the utility model defined in the following description can be used in other implementation schemes, modification schemes, improvement schemes, equivalent schemes and other technical schemes without departing from the spirit and scope of the utility model.

[0032] Those skilled in the art should understand that in the disclosure of the utility model, the orientation or position indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of the simplified description of the utility model, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore the above-mentioned terms cannot be understood as a limitation on the utility model.

[0033] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number. EMBODIMENT

[0034] Please refer to Figures 1-7 A monorail electric telescopic door, comprising a monorail telescopic door body 1 and a door frame 2 arranged outside the monorail telescopic door body 1, a plurality of built-in rollers 3 are evenly arranged at both ends of the door frame 2, the built-in rollers 3 are connected to the corresponding positions on the door frame 2 through a wheel carrier assembly 4, an outer wheel 5 is arranged inside the wheel carrier assembly 4, the outer wheel 5 can move up and down relative to the inside of the wheel carrier assembly 4, and a return spring 403 is arranged between the wheel carrier assembly 4 and the outer wheel 5.

[0035] The single-track electric retractable door of the present application is mainly composed of a single-track retractable door body 1, a door frame 2, an inner roller 3, a wheel carrier assembly 4, an outer wheel 5, a reset spring 403 and the like, and the following is a detailed structure and working principle.

[0036] Assembly of the wheel carrier assembly 4

[0037] Connection of the top plate 401 and the support plate 402

[0038] Align the two sets of support plates 402 with the corresponding mounting positions of the top plate 401, and then use several fastening bolts 4011 to fasten and assemble the support plates 402 and the top plate 401 by threaded connection, ensuring that the two are firmly connected and forming a stable frame structure of the wheel carrier assembly 4. Such an assembly method is convenient to disassemble and easy to operate when subsequent maintenance or replacement of parts of the wheel carrier assembly 4 is required, and can also ensure the stability of the structure during normal use, so that it can carry the inner roller 3, the outer wheel 5 and the like.

[0039] Preparation of the slot 4022

[0040] The slot 4022 is prepared in advance at the lower end inside the two sets of top plates 401, which is an important position for the subsequent installation of the connecting shaft 301, and prepares for the connection between the inner roller 3 and the outer wheel 5 through the connecting shaft 301, so that the two ends of the connecting shaft 301 can penetrate to the outside of the slot 4022, ensuring the rationality and continuity of the connection between the parts. At the same time, it provides a stable movement interval when the inner roller 3 is moved as a whole.

[0041] Installation of the reset spring 403 and related parts

[0042] Connection of the stabilizing plate 404 and the reset spring 403

[0043] The upper and lower ends of the reset spring 403 are connected to the corresponding stabilizing plates 404, such as by welding or other stable connection methods, so that they become an integral structure. The upper stabilizing plate 404 will subsequently contact the bottom of the top plate 401, and the lower stabilizing plate 404 will contact the top of the outer wheel 5, to ensure the stability and uniformity of the force of the reset spring 403 during operation, so that it can normally play its role of providing a reset force.

[0044] Installation of the clamping insert 405

[0045] Then, the card insert 405 is installed on the upper and lower end stabilizing plates 404, and the card insert 405 on the lower end stabilizing plate 404 is inserted into the slot on the top of the outer wheel 5, and the card insert 405 on the upper end stabilizing plate 404 is inserted into the slot on the bottom of the top plate 401. Since the inserted end of the card insert 405 is configured in a sharp state, it is easier to insert into the corresponding slot during insertion, facilitating installation operation, and this insertion method can greatly improve the stability of the overall installation of the return spring 403, preventing displacement and other conditions during use, ensuring that it can stably provide a return force for the up and down movement of the outer wheel 5.

[0046] Connection of the door frame 2 and the wheel carrier assembly 4

[0047] Installation of the mounting shaft 6

[0048] The mounting shaft 6 is fixedly connected to the end of the support plate 402 facing the door frame 2, and then the mounting hole 201 is aligned with the mounting shaft 6, and the mounting shaft 6 is inserted through the mounting hole 201, thereby preliminarily achieving the connection and positioning of the wheel carrier assembly 4 and the door frame 2.

[0049] Installation and limiting of the end plate 7 and the connecting screw 701

[0050] After the mounting shaft 6 is inserted through the mounting hole 201 on the door frame 2, the end plate 7 is installed on the end of the mounting shaft 6, and the connecting screw 701 is connected to the inner end of the end plate 7. By rotating the end plate 7 by hand, the connecting screw 701 is screwed and connected to the inside of the mounting shaft 6, thereby limiting the mounting shaft 6 on the inner wall of the door frame 2, completing the fixed installation of the wheel carrier assembly 4 on the door frame 2. At the same time, rubber stabilizing rings 601 are sleeved on the outer shaft of the mounting shaft 6, one end of the stabilizing ring 601 is located between the inner wall of the door frame 2 and the end plate 7, and the other end of the stabilizing ring 601 is located between the outer wall of the door frame 2 and the support plate 402. The rubber stabilizing ring 601 can enhance the stability of the connection after assembly, play a buffering and damping role, and will not affect the convenience of operation when disassembled, ensuring that the entire connection structure is stable and easy to maintain during normal use.

[0051] Installation and overall structure integration of the built-in roller 3, the outer wheel 5 and the connecting shaft 301

[0052] Connection relationship between the built-in roller 3 and the outer wheel 5

[0053] The inner built-in roller 3 is movably placed inside the outer roller 5 and connected through the connecting shaft 301, so that the inner built-in roller 3 is rotatably connected relative to the connecting shaft 301, and the inner built-in roller 3 protrudes from the bottom of the outer roller 5, so that the inner built-in roller 3 can better adapt to the ground condition when rolling. Meanwhile, the connecting shaft 301 penetrates through the outer roller 5 and the notch 4022 outside the top plate 401 prepared in advance, so as to ensure the integrity and rationality of the whole structure connection, so that the inner built-in roller 3 and the outer roller 5 can work cooperatively.

[0054] Whole structure integration and door body installation

[0055] The door frame 2 with the above roller structure is evenly arranged at the corresponding position outside the monorail retractable door body 1, so that the door body of the monorail retractable door body 1 can travel in the track in the door frame 2, and the whole monorail electric retractable door is completed.

[0056] Specific working principle

[0057] When the monorail electric retractable door is in normal operation and the door body travels on flat ground, the outer roller 5 is stably in a relatively constant position inside the wheel carrier assembly 4 under the strong support of the return spring 403. At this moment, the elastic force generated by the return spring 403 and the gravity of the outer roller 5, the inner built-in roller 3 and other components and the slight friction generated during the operation of the door body are in perfect balance, thereby ensuring the stability of the whole roller structure. The inner built-in roller 3 as the core rolling component rolls smoothly and stably on the track with the movement of the door body, and by virtue of its smooth operation, it can pull the whole monorail retractable door body 1 to smoothly realize the opening or closing action. The outer roller 5 is closely connected with the wheel carrier assembly 4 through the return spring 403. Once the inner built-in roller 3 encounters external extrusion force, it will extrude the return spring 403, at the same time, the outer roller 5 generates linkage, and promotes the two ends of the connecting shaft 301 to flexibly move inside the notch 4022, so as to provide a relatively stable and suitable movement interval for the whole structure, effectively guaranteeing the continuity and reliability of the door body operation.

[0058] However, when the single-track telescopic door body 1 runs on uneven ground with slight ups and downs, pits or gaps, the unevenness of the ground will exert a squeezing force on the built-in roller 3 protruding from the bottom of the outer wheel 5. Since the built-in roller 3 and the outer wheel 5 are rotationally connected by the connecting shaft 301, after being subjected to the squeezing force, the built-in roller 3 will pull the entire outer wheel 5 to displace upward inside the wheel bracket assembly 4. In this process, the outer wheel 5 will squeeze the return spring 403, and the return spring 403 will be compressed accordingly due to its elastic properties, and the elastic potential energy stored inside will gradually increase, thereby effectively absorbing the external force generated by the ground undulations transmitted by the built-in roller 3. This elastic deformation enables the built-in roller 3 to still flexibly and freely extend and retract to adapt to the changes in ground level, ensuring that the roller always maintains good contact with the ground and rolls smoothly, effectively avoiding the phenomenon of door body operation jamming.

[0059] When passing through uneven road surfaces, the outer wheel 5 will return to its original relatively stable position with the built-in roller 3 under the action of the return force of the return spring 403. The return force of the return spring 403 is generated due to the release of the internal elastic potential energy after it is compressed, which pushes the outer wheel 5 to move downward until it returns to the initial equilibrium state, continuing to ensure the smoothness and stability of the subsequent operation of the door body. This solves the problem of fixed roller structure in traditional single-track electric telescopic doors, which is helpless in the face of complex ground conditions, and also reduces the occurrence of situations such as irritating noise due to jamming, uneven resistance leading to component wear and tear, and door body derailment, improves the efficiency and safety of access control management, and when maintenance or replacement of the roller and other components is required, the connection between the components is easy to disassemble and install, making it easier to operate and meeting the modern efficient and convenient facility maintenance requirements.

[0060] It should be understood by those skilled in the art that the embodiments of the utility model shown in the above description and drawings are only examples and do not limit the utility model. The purpose of the utility model has been completely and effectively achieved. The function and structural principle of the utility model have been demonstrated and explained in the embodiments, and the implementation of the utility model can be any modification or modification without departing from the principle.

Claims

1. A single-track electric retractable door, comprising a single-track retractable door body (1) and a door frame (2) arranged outside the single-track retractable door body (1), characterized in that: Both ends of the door frame (2) are uniformly provided with several built-in rollers (3), the built-in rollers (3) are connected to the corresponding positions of the door frame (2) through the wheel frame assembly (4), the wheel frame assembly (4) is provided with an outer wheel (5) inside, the outer wheel (5) can move up and down relative to the inside of the wheel frame assembly (4), and the wheel frame assembly (4) and the outer wheel (5) are correspondingly provided with a reset spring (403).

2. A single track electric retractable door according to claim 1, wherein: The wheel frame assembly (4) comprises a top plate (401) and a support plate (402), the support plate (402) has two groups, and the two groups of support plates (402) and the top plate (401) are screw-connected through a plurality of fastening bolts (4011).

3. A single track electric retractable door according to claim 2, wherein: The lower end of the inside of the two groups of top plates (401) is provided with a notch (4022), the built-in roller (3) and the outer wheel (5) are connected through a connecting shaft (301), and the both ends of the connecting shaft (301) correspondingly penetrate to the outside of the notch (4022).

4. A single track electric retractable door according to claim 1, wherein: The built-in roller (3) moves in the inside of the outer wheel (5) and is rotatably connected relative to the connecting shaft (301).

5. A motorized retractable door according to claim 1, wherein: The upper and lower ends of the reset spring (403) are symmetrically provided with stabilizing plates (404), the upper stabilizing plate (404) is in contact with the bottom of the top plate (401), and the lower stabilizing plate (404) is in contact with the top of the outer wheel (5).

6. A motorised retractable door according to claim 5, wherein: The upper and lower stabilizing plates (404) are connected with clamping inserts (405), the clamping insert (405) on the upper stabilizing plate (404) is inserted into the groove in the bottom of the top plate (401), and the clamping insert (405) on the lower stabilizing plate (404) is inserted into the groove in the top of the outer wheel (5).

7. A single track electric retractable door according to claim 6 wherein: The insertion end of the clamping insert (405) is configured in a sharp state.

8. A single track electric retractable door according to claim 2, wherein: One end of the support plate (402) towards the door frame (2) is connected with a mounting shaft (6), the bottom of the door frame (2) is correspondingly provided with a mounting hole (201), the mounting hole (201) allows the mounting shaft (6) to pass through, and an end plate (7) is arranged at the passing-through end to limit.

9. A motorised retractable door according to claim 8, wherein: The inner end of the end plate (7) is connected with a connecting screw rod (701), and the connecting screw rod (701) is threadedly and rotatably connected in the inside of the mounting shaft (6).

10. A motorized retractable door according to claim 9, wherein: Both ends of the outer shaft of the mounting shaft (6) are sleeved with stabilizing rings (601), one end of the stabilizing ring (601) is located between the inner side wall of the door frame (2) and the end plate (7), and the other end of the stabilizing ring (601) is located between the outer side wall of the door frame (2) and the support plate (402).

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