Width-adjustable manual rotating safety door

Abstract

The utility model belongs to safety protection devices, and particularly relates to a width-adjustable manual rotating safety door which comprises two stand columns which are symmetrically arranged at intervals and are of hollow structures, telescopic door blocking assemblies are arranged on the opposite sides of the two stand columns, and the close ends of the two telescopic door blocking assemblies are in sliding contact when the safety door is closed. The inner side of the bottom of each stand column is sleeved with a bearing clamping ring, the bearing clamping rings and the stand columns are fixedly connected through at least three bolts evenly distributed in the circumferential direction, bearing assemblies are sleeved with the bearing clamping rings, the bottoms of the bearing assemblies are fixedly connected with a bottom plate, limiting plates are arranged at the positions, located on the opposite sides of the two stand columns, of the top of the bottom plate, and limiting paths are arranged on the limiting plates. Limiting bolts are connected to the stand columns in a threaded mode, and the limiting bolts are matched with the limiting paths to achieve rotation angle limitation. The device is reasonable in structural design, convenient to operate and capable of meeting the requirements of entrances and exits with different widths.

Description

Technical Field

[0001] This utility model pertains to safety protection devices, and particularly relates to a manually rotating safety door with adjustable width. Background Technology

[0002] In industries such as chemical, warehousing, and logistics, factories, warehouses, and loading and unloading docks often store large quantities of hazardous chemicals, heavy equipment, or flammable and explosive materials. The safety management of their entrances and exits is of paramount importance, which necessitates the use of safety doors.

[0003] However, most security doors nowadays are of fixed size and cannot adapt to the needs of entrances and exits of different widths, which limits their use. Utility Model Content

[0004] The main technical problem to be solved by this utility model is to provide an adjustable width manual rotating safety door with a reasonable structural design, convenient operation, and the ability to adapt to the needs of entrances and exits of different widths.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An adjustable-width manually operated rotating safety gate includes two hollow columns arranged symmetrically at intervals. Each column has a telescopic gate assembly on its opposite side, and the proximal ends of the two telescopic gate assemblies slide into contact when the safety gate is closed. A bearing retainer is fitted inside the bottom of each column, and the bearing retainer is fixedly connected to the column by at least three circumferentially distributed bolts. A bearing assembly is fitted inside the bearing retainer, and a base plate is fixedly connected to the bottom of the bearing assembly. Limiting plates are provided on the top of the base plate on the opposite sides of the two columns, and limiting paths are provided on the limiting plates. Limiting bolts are threaded onto each column, and the limiting bolts cooperate with the limiting paths to limit the rotation angle.

[0007] The following are further optimizations of the above technical solution by this utility model:

[0008] The bearing assembly includes an upper bearing housing and a lower bearing housing that cooperate with each other, and a first ball bearing is installed between the upper bearing housing and the lower bearing housing.

[0009] Further optimization: The bottom of the lower bearing housing is fixedly connected to the top of the base plate, and a second ball bearing is provided on the top of the upper bearing housing. A shaft elastic retaining ring is provided on the top of the second ball bearing. The shaft elastic retaining ring, the upper bearing housing, and the lower bearing housing are fixedly connected together by bolts.

[0010] Further optimization: The telescopic gate assembly includes two parallel and spaced-apart gate tubes. One end of the gate tube is fixedly connected to the column through a connecting sleeve. A horizontal U-shaped tube is detachably installed between the other ends of the two gate tubes. The two horizontal sections of the horizontal U-shaped tube are respectively inserted into or sleeved on the ends of the two gate tubes to form a telescopically adjustable closed structure.

[0011] Further optimization: At least one horizontal section of the horizontal U-shaped tube has multiple positioning screw holes on its outer side wall, and the corresponding end of the stop tube has a fixing screw hole on its outer side wall. The fixing screw hole and the corresponding positioning screw hole are fixedly connected by a plum blossom bolt.

[0012] Further optimization: Locking clips are fixedly connected to the outer side walls of the vertical sections of the two horizontal U-shaped tubes that are facing away from each other, and the two locking clips are locked by external locking devices.

[0013] Further optimization: The outer side wall of the connecting sleeve is provided with a through-hole, and the outer side wall of the corresponding end of the stop tube is provided with a through-hole. The mounting hole and the connecting hole are fixedly connected by a bolt and nut assembly.

[0014] Further optimization: Four elongated holes arranged in a figure-eight shape are provided through the four corners of the top of the base plate, and two fixing holes are provided on the limiting plate. The fixing holes and the corresponding elongated holes are connected by the same external connector.

[0015] This utility model employs two symmetrically arranged columns and installs telescopic gate components on the inner side of the columns, allowing the two telescopic gate components to slide into contact when closed. This not only enhances the overall stability but also allows for flexible adjustment of the gate width through the telescopic gate components, adapting to different entrance and exit width requirements and improving applicability.

[0016] This utility model uses limiting plates installed on both sides of the base plate, with limiting paths provided on the limiting plates. The limiting bolts on the column cooperate with these limiting plates to precisely control the rotation angle, thereby effectively preventing the door from rotating excessively or deviating, ensuring safety in use. At the same time, the rotation range can be adjusted according to actual needs to enhance functionality.

[0017] In this utility model, the bearing retainer is fixedly connected to the hollow column by at least three circumferentially distributed bolts, forming a multi-point uniform force-bearing fixing method. This not only enhances the connection strength but also effectively disperses the stress generated during rotation, preventing loosening problems caused by long-term use. At the same time, the bearing retainer is equipped with a bearing assembly inside, enabling the column to rotate smoothly, reducing friction and wear, and extending its service life.

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0021] Figure 2 This is a partial structural schematic diagram of an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure at the column in an embodiment of this utility model;

[0023] Figure 4 This is a partial sectional view of the column in an embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the bearing assembly in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure at the baffle in an embodiment of this utility model;

[0026] Figure 7 This is a schematic diagram of the structure at the horizontal U-shaped tube in an embodiment of this utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the limiting plate in an embodiment of this utility model.

[0028] In the diagram: 1-Column; 2-Telescopic gate assembly; 21-Blocking tube; 22-Connecting sleeve; 23-Horizontal U-tube; 24-Positioning screw hole; 25-Fixing screw hole; 26-Plum shank bolt; 27-Locking clip; 28-Mounting hole; 29-Connecting hole; 3-Bearing retaining ring; 4-Bearing assembly; 41-Upper bearing seat; 42-Lower bearing seat; 43-First ball bearing; 44-Second ball bearing; 45-Shaft elastic retaining ring; 5-Base plate; 51-Elongated hole; 6-Limiting plate; 61-Limiting path; 62-Fixing hole; 7-Limiting bolt; 8-Pipe cap. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figure 1-8 As shown, an adjustable-width manual rotating safety gate includes two hollow columns 1 arranged symmetrically at intervals. A telescopic gate assembly 2 is provided on one side of each column 1 facing each other, and the proximal ends of the two telescopic gate assemblies 2 slide into contact when the safety gate is closed. A bearing retainer 3 is fitted inside the bottom of each column 1, and the bearing retainer 3 is fixedly connected to the column 1 by at least three circumferentially distributed bolts. A bearing assembly 4 is fitted inside the bearing retainer 3, and a base plate 5 is fixedly connected to the bottom of the bearing assembly 4. A limiting plate 6 is provided on the top of the base plate 5 on the opposite side of each of the two columns 1, and a limiting path 61 is provided on the limiting plate 6. Limiting bolts 7 are threaded onto each column 1, and the limiting bolts 7 cooperate with the limiting path 61 to limit the rotation angle.

[0031] This design firstly uses two symmetrically arranged hollow columns 1, and installs telescopic door blocking components 2 on the inner side of the columns 1, so that the two telescopic door blocking components 2 can slide into contact when closed. This not only enhances the overall stability, but also allows the door width to be flexibly adjusted through the telescopic door blocking components 2 to adapt to the needs of different widths of entrances and exits, thus improving applicability.

[0032] Secondly, limit plates 6 are installed on both sides of the base plate 5. Limiting paths 61 are provided on the plates, and the limit bolts 7 on the column 1 cooperate with them to precisely control the rotation angle, thereby effectively preventing the door from rotating or deviating excessively and ensuring safety. At the same time, the rotation range can be adjusted according to actual needs to enhance functionality.

[0033] Furthermore, the bearing retainer 3 is fixedly connected to the hollow column 1 by at least three circumferentially distributed bolts, forming a multi-point uniform force-bearing fixing method. This not only enhances the connection strength but also effectively disperses the stress generated during rotation, preventing loosening problems caused by long-term use. At the same time, the bearing retainer 3 is equipped with a bearing assembly 4 inside, which enables the column 1 to rotate smoothly, reducing friction and wear and extending its service life.

[0034] The bearing assembly 4 includes an upper bearing housing 41 and a lower bearing housing 42 that cooperate with each other, and a first ball bearing 43 is installed between the upper bearing housing 41 and the lower bearing housing 42.

[0035] The bottom of the lower bearing seat 42 is fixedly connected to the top of the base plate 5. The top of the upper bearing seat 41 is provided with a second ball bearing 44. The top of the second ball bearing 44 is provided with a shaft elastic retaining ring 45. The shaft elastic retaining ring 45, the upper bearing seat 41 and the lower bearing seat 42 are fixedly connected together by bolts.

[0036] With this design, firstly, the first ball bearing 43 bears the radial load, and secondly, the second ball bearing 44 resists the axial force. The two work together to cope with the combined forces when the door rotates, preventing the bearings from shifting or deviating, ensuring the stable rotation of the safety door, and reducing component wear caused by uneven force.

[0037] Secondly, the double ball bearing replaces sliding friction with rolling friction, resulting in significant double drag reduction. This makes manually pushing the safety door easier and smoother, reducing manpower consumption, while also reducing wear between the bearing and the seat, thus extending the overall service life.

[0038] Furthermore, the modular bearing assembly 4 design allows for quick assembly without complex installation processes, as each component is connected by bolts. In addition, during later maintenance, if the bearings wear out or malfunction, the ball bearings or other components can be easily replaced by removing the bolts, reducing maintenance difficulty and costs and improving equipment maintenance efficiency.

[0039] The telescopic gate assembly 2 includes two parallel and spaced-apart gate tubes 21. One end of the gate tube 21 is fixedly connected to the column 1 through a connecting sleeve 22. A horizontal U-shaped tube 23 is detachably installed between the other ends of the two gate tubes 21. The two horizontal sections of the horizontal U-shaped tube 23 are respectively inserted into or sleeved on the ends of the two gate tubes 21.

[0040] The horizontal U-shaped tube 23 has multiple positioning screw holes 24 on the outer wall of one horizontal section, and the corresponding end of the baffle tube 21 has a fixing screw hole 25 on the outer wall. The fixing screw hole 25 and the corresponding positioning screw hole 24 are fixedly connected by a plum blossom bolt 26.

[0041] The connection between the horizontal U-shaped tube 23 and the baffle tube 21 is adjustable. The length can be adjusted by aligning different positioning screw holes 24 and fixing screw holes 25.

[0042] With this design, firstly, the multiple positioning screw holes 24 on the horizontal U-shaped tube 23, together with the fixing screw holes 25 on the baffle tube 21, can precisely adjust the length of the telescopic baffle assembly 2 according to actual needs. Thus, by selecting different positions for screw hole alignment, it can quickly adapt to various channel widths and meet the requirements of different installation scenarios.

[0043] Secondly, the design of the plum blossom bolt 26 allows for disassembly and assembly without additional tools, making the adjustment process more convenient and efficient, and facilitating future modifications and maintenance of the safety door.

[0044] Furthermore, the standardized screw hole design and universal 26mm shank bolts reduce production and maintenance costs, facilitating mass production and spare parts inventory. At the same time, this modular and adjustable structure allows the safety door to easily adapt to changes in different working conditions. Whether it is a new project or the renovation of existing facilities, it can be quickly installed and debugged, improving the product's versatility and market applicability.

[0045] Locking clips 27 are fixedly connected to the outer side walls of the vertical sections of the two horizontal U-shaped tubes 23 that are facing away from each other, and the two locking clips 27 are locked by external locks.

[0046] With this design, the two locking clips 27, together with the external lock, can firmly fix the telescopic door components 2 on both sides when the security door is closed, preventing unauthorized personnel from opening it at will. Therefore, whether used in warehouses, laboratories or other places where access needs to be restricted, or for the control of passageways in public areas, it can effectively prevent illegal entry and ensure the safety of personnel and materials in the area.

[0047] An installation hole 28 is provided through the outer wall of the connecting sleeve 22, and a connecting hole 29 is provided through the outer wall of the corresponding end of the baffle 21. The installation hole 28 and the connecting hole 29 are fixedly connected by a bolt and nut assembly.

[0048] This design eliminates the need for welding or specialized tools; assembly can be completed simply by aligning the holes and tightening the bolts, significantly improving construction efficiency. Furthermore, the standardized mounting holes 28 and connecting holes 29 allow for quick replacement or individual maintenance of the connecting sleeve 22 and the retaining tube 21.

[0049] The connection between the baffle 21 and the connecting sleeve 22 is either a sleeve connection or a plug connection.

[0050] This design allows the retaining tube 21 and the connecting sleeve 22 to be connected by a socket or plug, simplifying the installation process and enabling quick assembly without complex processes. This allows the retaining tube 21 to be easily adjusted or disassembled within the connecting sleeve 22, facilitating the replacement of retaining tubes 21 of different specifications according to actual needs and adapting to diverse channel widths. At the same time, when a component is damaged, it can be disassembled and repaired or replaced individually, reducing maintenance costs and difficulty.

[0051] The base plate 5 has four elongated holes 51 through each of its four corners, and two adjacent elongated holes 51 are arranged in a figure-eight shape.

[0052] The limiting plate 6 has two fixing holes 62, and the fixing holes 62 and the corresponding elongated holes 51 are connected by the same external connector.

[0053] This design allows the external connectors to slide obliquely, while simultaneously enabling the horizontal displacement and angle fine-tuning of the limit plate 6. This precisely adapts to the door rotation angle requirements in different scenarios and can also compensate for installation errors such as uneven ground.

[0054] Secondly, the slanted holes disperse the force, and the bolts and the hole walls form a wedge-shaped locking effect, which effectively resists the lateral torque when the door rotates, reduces the risk of loosening, and improves the structural stability for long-term use.

[0055] Furthermore, a set of base plates 5 can cover multiple angles through different combinations of hole positions, reducing production and maintenance costs.

[0056] The top of each hollow column 1 is welded with a pipe cap 8.

[0057] This design serves several purposes. First, the welded cap 8 seals the top opening of the column 1, effectively preventing dust, rainwater, insects, and other foreign objects from entering the hollow column 1. This avoids the internal structure from becoming damp, rusted, or damaged due to long-term exposure, thus extending the service life of the column 1. At the same time, for areas frequently touched by personnel, the sealed top prevents fingers or other objects from accidentally entering the cavity of the column 1, reducing safety hazards.

[0058] Secondly, the welded pipe cover 8 can reinforce the top of the hollow column 1, improve the compressive strength of the column 1 in the vertical direction, and reduce the risk of deformation of the column 1, especially when the door is subjected to the load above.

[0059] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.

Claims

1. An adjustable-width manually operated rotating safety gate, comprising two hollow columns (1) arranged symmetrically at intervals, characterized in that: Each of the two columns (1) is provided with a telescopic gate assembly (2) on one side opposite to the other. The two telescopic gate assemblies (2) slide and fit together when the safety gate is closed. Each column (1) is provided with a bearing retainer (3) on the inner side of its bottom. The bearing retainer (3) is fixedly connected to the column (1) by at least three circumferentially distributed bolts. The bearing retainer (3) is provided with a bearing assembly (4) inside. The bottom of the bearing assembly (4) is fixedly connected with a base plate (5). The top of the base plate (5) is provided with a limiting plate (6) on the opposite side of the two columns (1). The limiting plate (6) is provided with a limiting path (61). The column (1) is threaded with a limiting bolt (7). The limiting bolt (7) and the limiting path (61) cooperate to limit the rotation angle.

2. The adjustable-width manually rotating safety door according to claim 1, characterized in that: The bearing assembly (4) includes an upper bearing housing (41) and a lower bearing housing (42) that cooperate with each other, and a first ball bearing (43) is installed between the upper bearing housing (41) and the lower bearing housing (42).

3. The adjustable-width manually rotating safety door according to claim 2, characterized in that: The bottom of the lower bearing housing (42) is fixedly connected to the top of the base plate (5). The top of the upper bearing housing (41) is provided with a second ball bearing (44). The top of the second ball bearing (44) is provided with a shaft elastic retaining ring (45). The shaft elastic retaining ring (45), the upper bearing housing (41) and the lower bearing housing (42) are fixedly connected together by bolts.

4. The adjustable-width manually rotating safety door according to claim 3, characterized in that: The telescopic gate assembly (2) includes two parallel and spaced-apart gate tubes (21). One end of the gate tube (21) is fixedly connected to the column (1) through a connecting sleeve (22). A horizontal U-shaped tube (23) is detachably installed between the other ends of the two gate tubes (21). The two horizontal sections of the horizontal U-shaped tube (23) are inserted into or sleeved at the ends of the two gate tubes (21) to form a telescopic and adjustable closed structure.

5. The adjustable-width manually rotating safety door according to claim 4, characterized in that: At least one horizontal section of the horizontal U-shaped tube (23) has multiple positioning screw holes (24) on its outer side wall, and the corresponding end of the baffle tube (21) has a fixing screw hole (25) on its outer side wall. The fixing screw hole (25) and the corresponding positioning screw hole (24) are fixedly connected by a plum blossom bolt (26).

6. The adjustable-width manually rotating safety door according to claim 5, characterized in that: Locking clips (27) are fixedly connected to the outer side walls of the vertical sections of the two horizontal U-shaped tubes (23) facing away from each other, and the two locking clips (27) are locked by external locks.

7. The adjustable-width manually rotating safety door according to claim 6, characterized in that: An installation hole (28) is provided through the outer wall of the connecting sleeve (22), and a connecting hole (29) is provided through the outer wall of the corresponding end of the stop tube (21). The installation hole (28) and the connecting hole (29) are fixedly connected by a bolt and nut assembly.

8. The adjustable-width manually rotating safety door according to claim 7, characterized in that: The bottom plate (5) has four long holes (51) arranged in a figure-eight shape at the four corners of the top. The limiting plate (6) has two fixing holes (62). The fixing holes (62) and the corresponding long holes (51) are connected by the same external connector.

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