Security door

Abstract

The present application relates to the technical field of door bodies, and provides a safety door, including: a door frame, on which a rotating shaft is provided; a door column assembly, which is plugged and matched with the rotating shaft; a rotating assembly, which includes a fixed shaft and a rotating member connected to the fixed shaft, and one end of the fixed shaft is fixedly connected to the rotating shaft; wherein the door column assembly is provided with a notch for guiding the sliding of the rotating member, and the notch has a height difference, the lower position is the first position, and the higher position is the second position, and the rotating member is used to slide between the first position and the second position, so that the door frame rotates relative to the door column assembly, and rises or automatically resets relative to the door column assembly during the rotation process. Through the technical solution of the present application, the maintenance cost of the safety door in the later stage can be reduced.

Description

Technical Field

[0001] The present application relates to the field of door body technology, and in particular to a safety door. Background Art

[0002] At present, due to the large area of ​​workshop buildings and the large number of heavy-loaded machines, pedestrian crossings are set up in workshop buildings to ensure the safety of workers. Because some countries have design standards for pedestrian passages in workshops, it is necessary to set a safety door at the intersection of the pedestrian crossing and the intersection. However, the safety doors in the prior art all use two-way hinges to achieve front and back opening and resetting. In scenarios with high frequency of use, the hinges are easy to break or the reset springs are easy to fatigue and damage, increasing the subsequent maintenance costs. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a safety door that can reduce subsequent maintenance costs.

[0004] In order to solve the above technical problems, this application adopts the following technical solutions:

[0005] The present application provides a safety door, comprising: a door frame, on which a rotating shaft is provided; a door column assembly, which is plugged and matched with the rotating shaft; a rotating assembly, which comprises a fixed shaft and a rotating member connected to the fixed shaft, and one end of the fixed shaft is fixedly connected to the rotating shaft; wherein the door column assembly is provided with a notch for guiding the sliding of the rotating member, the notch has a height difference, the low position is a first position, and the high position is a second position, the rotating member is used to slide between the first position and the second position, so that the door frame rotates relative to the door column assembly, and rises or automatically resets relative to the door column assembly during the rotation process.

[0006] As an implementation mode, the door column assembly includes a door column and a sleeve, the sleeve is sleeved on one end of the door column, the rotating shaft is plugged into the sleeve, and the notch is formed on the peripheral side of the sleeve.

[0007] As an implementation manner, the door post and the sleeve are detachably connected, or the door post and the sleeve are integrally formed.

[0008] As an implementation manner, the gap includes two second positions, and the two second positions are arranged opposite to each other.

[0009] As an embodiment, the rotating member is sleeved on the outer periphery of the fixed shaft, the rotating member includes an outer shell, a support frame is provided inside the outer shell, a plurality of first rolling parts are evenly distributed on the support frame, the fixed shaft is tightly connected with the plurality of first rolling parts, and the outer shell is suitable for sliding along the notch and rotating relative to the fixed shaft.

[0010] As an embodiment, the rotating member includes a side plate, and two side plates are provided, respectively located at two ends of the axial direction of the shell, and the side plates axially limit the support frame and the first rolling part.

[0011] As an implementation manner, the housing is further provided with two annular grooves, and a sealing ring is provided in the annular groove. The sealing ring is located between the side plate and the housing and is used to seal the rotating part.

[0012] As an embodiment, the rotating member is sleeved on the outer periphery of the fixed shaft, and the rotating member includes a first sliding part and a second sliding part arranged coaxially, the second sliding part is tightly fitted with the fixed shaft, and a plurality of second rolling parts are provided between the first sliding part and the second sliding part.

[0013] As an embodiment, the door frame is provided in two numbers, the two door frames are vertically arranged relative to the road and are in a closed state relative to the road; the door column assembly is provided in two numbers, when an external force is applied to the door frame on the road, the rotating member slides from the first position to the second position, and the door frame changes from a closed state to an open state; when the rotating member slides from the second position to the first position, the door frame automatically returns to a closed state.

[0014] As an embodiment, the door frame is provided in two numbers, the two door frames are arranged parallel to the road and are in an open state relative to the road; the door column assembly is provided in two numbers, when external force is applied to the door frame on both sides of the road, the rotating member slides from the first position to the second position, and the door frame changes from an open state to a closed state; when the rotating member slides from the second position to the first position, the door frame automatically returns to an open state.

[0015] The technical solution of this application has the following effects:

[0016] 1. A rotating shaft is arranged on the door frame, and the rotating shaft is inserted into the door column assembly, so that the rotating shaft can rotate relative to the door column assembly, and a notch is arranged on the door column assembly, and the notch has a height difference, the low position is the first position, and the high position is the second position. One end of the fixed shaft is fixedly connected to the rotating shaft, and the other end is provided with a rotating member, and the rotating member can slide along the notch, and an external force is applied to make the rotating member slide from the first position to the second position. The door frame rotates relative to the door column assembly and gradually rises while rotating. When it reaches the second position, the external force is withdrawn, and the door frame will automatically drop by its own gravity and return to its original position, so that the safety door can be automatically reset, and the service life of the safety door is increased, and the later maintenance cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a safety door in one state provided by an embodiment of the present application;

[0019] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle A part;

[0020] Figure 3 A schematic diagram of the structure of a safety door in another state provided by an embodiment of the present application;

[0021] Figure 4 A schematic diagram of the structure of a rotating assembly provided in an embodiment of the present application.

[0022] Icons: 1-door frame; 2-rotating shaft; 3-door column assembly; 31-notch; 32-door column; 33-sleeve; 4-fixed shaft; 5-rotating member; 51-housing; 52-support frame; 53-first rolling part; 54-side plate; 55-sealing ring; 56-annular groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0024] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] like Figures 1 to 3As shown, an embodiment of the present application provides a safety door, including a door frame 1, which is a square structure, but may also be of other shapes. A rotating shaft 2 is provided on the door frame 1, and the rotating shaft 2 is fixedly connected to the door frame 1, which may be welded, etc. Of course, the rotating shaft 2 may also be integrally formed with the door frame 1; it also includes a door column assembly 3, the rotating shaft 2 is inserted into the door column 3 from one end of the door column assembly 3, and can rotate relative to the door column assembly 3, a notch 31 is provided on the door column assembly 3, and the notch 31 has a height difference, wherein the low position is the first position and the high position is the second position; it also includes a rotating assembly, the rotating assembly includes a fixed shaft 4 and a rotating member 5, the fixed shaft 4 is fixedly connected to the rotating shaft 2, the rotating member 5 is located at the end of the fixed shaft 4 and is connected to the fixed shaft 4, the rotating member 5 can slide along the notch 31, that is, slide from the first position to the second position, or slide from the second position to the first position. When external force is applied to the door frame 1, the door frame 1 will drive the rotating shaft 2, so that the rotating member 5 slides from the first position to the second position, the rotating shaft 2 rotates relative to the door column assembly 3, and gradually rises during the rotation process. After the external force is withdrawn, the door frame 1 uses its own gravity to make the rotating member 5 slide from the second position to the first position, and the rotating shaft 2 gradually drops relative to the door column assembly 3, and realizes the function of automatic reset. Compared with the safety door that realizes automatic reset through hinges or reset springs, the present application increases the service life of the safety door and reduces the subsequent maintenance cost. At the same time, in the prior art, the hinges or reset springs will have the risk of pinching or injuring pedestrians after long-term use, and will also produce abnormal noises, affecting the use. The safety door introduced in the embodiment of the application slides in the gap through the rotating member, so there will be no risk of pinching or injuring pedestrians and no abnormal noises.

[0026] Optionally, the rotating shaft 2 and the fixed shaft 4 are connected by threaded connection or welding. In order to facilitate the replacement of the fixed shaft 4, the present application connects the rotating shaft 2 and the fixed shaft 4 by threaded connection.

[0027] Generally, the door column assembly 3 is fixed on the road, and the present application does not specifically limit the fixing position of the door column assembly 3.

[0028] like Figure 2 As shown, as an embodiment, the door column assembly 3 includes a door column 32 and a sleeve 33. The sleeve 33 is sleeved on one end of the door column 32. The rotating shaft 2 is inserted into the sleeve 33 and can rotate relative to the sleeve 33. A notch 31 is provided on the circumferential side of the sleeve 33 so that the rotating member 5 can slide along the notch 31.

[0029] Optionally, the door pillar 32 may be a hollow structure.

[0030] As an embodiment, the door column 32 and the sleeve 33 may be detachably connected, such as threaded connection or clamping connection. In order to facilitate the later maintenance of the safety door and ensure the stability of the safety door, a threaded connection may be provided between the door column 32 and the sleeve 33. In addition, in order to reduce production costs, the diameter of the sleeve 33 is larger than the diameter of the door column 32.

[0031] Optionally, the door column 32 and the sleeve 33 may be integrally formed. To reduce production costs, the diameter of the door column 32 may be designed to be smaller than that of the sleeve 33. Of course, the door column 32 may also be designed to have the same diameter as the sleeve 33.

[0032] Optionally, the door column 32 and the sleeve 33 may also be fixedly connected by welding.

[0033] Optionally, the opening direction of the notch 31 is not specifically limited in this application, and the connection position of the fixed shaft 4 and the rotating shaft 2 can be adjusted according to the opening of the notch 31 so that the door frame 1 can be rotated 90 degrees or 180 degrees relative to the door column assembly 3.

[0034] As an implementation manner, the notch 31 includes two second positions, which are arranged opposite to each other to increase the rotation angle of the door frame 1 , so that the door frame 1 can achieve 180-degree rotation relative to the door column assembly 3 .

[0035] Optionally, the notch 31 may be provided with only one second position, in which case the door frame 1 can achieve a 90-degree rotation relative to the door column assembly 3 .

[0036] Optionally, both the first position and the second position are subjected to a smooth transition process, so that the rotating member 5 can rotate more smoothly in the notch 31 . Meanwhile, the connecting surface between the first position and the second position is also a smooth transition curved surface.

[0037] Optionally, the position of the notch 31 is subjected to high-frequency processing to increase the hardness around the notch 31 and further increase the service life.

[0038] like Figure 4As shown, as an embodiment, the rotating member 5 is sleeved on the outer periphery of the fixed shaft 4, and the rotating member 5 includes a shell 51, and a support frame 52 is also provided in the shell 51. A plurality of first rolling parts 53 are evenly distributed on the support frame 52. By providing the support frame 52, support can be provided to the first rolling parts 53. At the same time, the first rolling parts 53 are in contact with the fixed shaft 4. The shell 51 is suitable for sliding along the notch 31, and drives the first rolling parts 53 to rotate synchronously relative to the fixed shaft 4, so that the rotating member 5 can slide along the notch 31. Among them, suitable means that the shell 51 slides along the notch 31 only when an external force is applied to the door frame 1. By providing the first rolling part 53, the rotation performance of the shell 51 is increased, and at the same time, the friction between the shell 51 and the first rolling part 53 can be reduced, thereby improving the service life of the rotating member 5.

[0039] Optionally, the first rolling portion 53 may be a ball or a needle, etc. As a preferred implementation, the present application may select a needle as the first rolling portion 53 , and the needle extends along the axial direction of the housing 51 .

[0040] like Figure 4 As shown, as an embodiment, the rotating member 5 includes two side plates 54, which are respectively located at the two ends of the axial direction of the outer shell 51, to axially limit the support frame 52 and the first rolling part 53 to prevent the support frame 52 and the first rolling part 53 from falling out of the outer shell 51.

[0041] Optionally, the fixed shaft 4 includes two sections, the diameter of the first section is larger than the diameter of the second section, the first section is located in the outer shell 51 and abuts against the side plate 54 to prevent the fixed shaft 4 from falling off, and the second section is extended to protrude away from the side plate 54. An additional sealing structure, such as a sealing ring, can be additionally provided between the second section and the side plate 54. On the one hand, it can seal the rotating part 5, and on the other hand, it can further increase the stability between the fixed shaft 4 and the side plate 54.

[0042] like Figure 4 As shown, as an embodiment, the rotating member 5 also includes a sealing ring 55, and two annular grooves 56 are provided in the outer shell 51. The outer edges of the side plates 54 are correspondingly snapped into the annular grooves 56. The annular grooves 56 limit the side plates 54 to prevent the side plates 54 from falling off the outer shell 51. A sealing ring 55 is provided in each annular groove 56, and the sealing ring 55 is arranged between the outer shell 51 and the side plates 54, so as to seal the rotating member 5.

[0043] As a parallel embodiment, the rotating member 5 may further include a first sliding portion and a second sliding portion, the first sliding portion and the second sliding portion are coaxially arranged, and the second sliding portion is sleeved on the outer periphery of the fixed shaft 4 and tightly connected with the fixed shaft 4, and the first rotating member 5 and the second rotating member 5 are supported by a plurality of second rolling portions to increase the rotation performance of the first sliding portion. The first sliding portion can slide along the notch 31, thereby driving the door frame 1 to rotate relative to the door column assembly 3.

[0044] Optionally, the first sliding part can be the outer ring of the bearing, and the second sliding part can be the inner ring of the bearing; of course, the first sliding part can also be the outer ring of the roller, the second sliding part can be the inner ring of the roller, and the second rolling part can also be a ball or a needle. As a preferred embodiment, the second rolling part can be selected as a ball.

[0045] Optionally, the rotating member 5 may also be a round sphere, rotatably connected to the fixed shaft 4 .

[0046] As an implementation mode, the notch 31 is in a V-shaped structure, so that the rotating member 5 can slide from the first position to the second position and automatically return to the first position from the second position.

[0047] As an implementation mode, two door frames 1 are provided, and a rotating shaft 2 is correspondingly provided on each door frame 1. Two door column assemblies 3 are also provided, and the rotating shaft 2 is correspondingly inserted into the door column assemblies 3. As one of the states, the two door frames 1 are in the same plane and are vertically arranged relative to the road. At this time, it is a closed state, that is, when the safety door is installed on the road, the two door frames 1 are vertically arranged with the road. Pedestrians standing on the road apply external force to push the two door frames 1 respectively, and the two rotating parts 5 slide from the first position to the second position. At this time, the two door frames 1 are in an open state relative to the road. After the external force is withdrawn, the door frame 1 automatically returns to the closed state by its own gravity, so that the safety door can be automatically reset without the use of hinges or reset springs, thereby reducing the subsequent maintenance costs. At the same time, the structure of the present application is also convenient for replacing the rotating part 5 and the fixed shaft 4.

[0048] As another embodiment, the door frames 1 are also provided with two, each door frame 1 is provided with a corresponding rotating shaft 2, the door column assemblies 3 are also provided with two, the rotating shaft 2 is correspondingly inserted into the door column assemblies 3, the two door frames 1 are provided in parallel with the road, and the safety door is in an open state relative to the road, that is, when the safety door is installed on the road, the two door frames 1 are provided in parallel with the road, when pedestrians apply external force on both sides of the road to push the two door frames 1, the two rotating parts 5 slide from the first position to the second position, and the two door frames 1 are in a closed state relative to the road, and after the external force is withdrawn, the door frame 1 automatically returns to the open state by its own gravity, so that the safety door of the present application can be applied to more scenarios.

[0049] Of course, the number of door frames 1 can also be set to be larger and applied to different scenarios based on actual needs, and this application does not make any specific restrictions on this.

[0050] The road mentioned in the present application can be the road inside a workshop or the road outside the workshop for cars and pedestrians to walk on. The safety door of the present application can be applied to many scenarios and is not specifically limited here.

[0051] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0052] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A safety door, characterized in that: include: A door frame, wherein a rotating shaft is provided on the door frame; A door column assembly, plug-fitted with the rotating shaft; A rotating assembly, the rotating assembly comprising a fixed shaft and a rotating member connected to the fixed shaft, one end of the fixed shaft is fixedly connected to the rotating shaft, and the rotating shaft and the fixed shaft are connected by threads; The door column assembly is provided with a notch for guiding the sliding of the rotating member, the notch has a height difference, the lower position is a first position, and the higher position is a second position, the rotating member is used to slide between the first position and the second position, so that the door frame rotates relative to the door column assembly, and rises or automatically resets relative to the door column assembly during the rotation process; The rotating member is sleeved on the outer circumference of the fixed shaft, and the rotating member includes an outer shell, a support frame is provided inside the outer shell, and a plurality of first rolling parts are evenly distributed on the support frame. The fixed shaft is fitted with the plurality of first rolling parts, and the outer shell is suitable for sliding along the notch and driving the first rolling parts to rotate synchronously relative to the fixed shaft.

2. The safety door according to claim 1, characterized in that: The door column assembly comprises a door column and a sleeve. The sleeve is sleeved on one end of the door column. The rotating shaft is plugged into the sleeve. The notch is formed on the peripheral side of the sleeve.

3. The safety door according to claim 2, characterized in that: The door post and the sleeve are detachably connected, or; The door post and the sleeve are integrally formed.

4. The safety door according to any one of claims 1 to 3, characterized in that: The notch includes two second positions, and the two second positions are arranged opposite to each other.

5. The safety door according to claim 1, characterized in that: The rotating member includes a side plate. Two side plates are provided and are respectively located at two ends of the shell in the axial direction. The side plates axially limit the support frame and the first rolling part.

6. The safety door according to claim 5, characterized in that: The shell is also provided with two annular grooves, and the outer edges of the side plates are correspondingly snapped into the annular grooves. A sealing ring is provided in the annular groove, and the sealing ring is located between the side plates and the shell for sealing the rotating part.

7. The safety door according to claim 4, characterized in that: The rotating member is sleeved on the outer circumference of the fixed shaft, and the rotating member includes a first sliding part and a second sliding part which are coaxially arranged. The second sliding part is tightly fitted with the fixed shaft, and a plurality of second rolling parts are arranged between the first sliding part and the second sliding part.

8. The safety door according to any one of claims 1 to 3, characterized in that: The door frames are provided in two numbers, and the two door frames are arranged vertically relative to the road and are in a closed state relative to the road; The door column assembly is provided with two, and when an external force is applied to the door frame on the road, the rotating member slides from the first position to the second position, and the door frame changes from a closed state to an open state; The rotating member slides from the second position to the first position, and the door frame automatically returns to the closed state.

9. The safety door according to any one of claims 1 to 3, characterized in that: The door frames are provided in two numbers, and the two door frames are arranged parallel to the road and are in an open state relative to the road; The door column assembly is provided with two, and an external force is applied to the door frame on both sides of the road, the rotating member slides from the first position to the second position, and the door frame changes from an open state to a closed state; The rotating member slides from the second position to the first position, and the door frame automatically returns to the open state.

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