Sliding steel door convenient to disassemble

Abstract

The utility model belongs to the technical field of furniture building materials, and particularly relates to a sliding steel door convenient to disassemble, which comprises a positioning frame, an installation sliding strip, a guide strip and a sliding door, the installation sliding strip and the guide strip are fixedly installed on the side face of the positioning frame, the installation sliding strip is arranged close to the top of the positioning frame, and one end of the installation sliding strip extends to the edge of one side of the positioning frame. The top of the sliding door is in sliding connection with the installation sliding strip, the bottom of the sliding door is in sliding connection with the guide strip, the bottom of the sliding door is in sliding connection with the guide strip, a positioning sliding groove is formed in one inner side face of the sliding groove of the installation sliding strip, and the other side face of the sliding groove of the installation sliding strip is in sliding connection with the guide strip. One end of the positioning sliding groove extends downwards to be communicated with a receding hole formed in the side face of the installation sliding strip, a fixing device is arranged on the sliding door, a sliding protrusion is arranged on the side face of the telescopic end of the fixing device, the sliding protrusion can be slidably connected with the positioning sliding groove, and the sliding door can be conveniently disassembled through the structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of furniture and building materials, and particularly relates to a detachable sliding steel door. Background Art

[0002] A hanging wheel, a slider or a rotating shaft will be provided on the sliding door to realize the sliding and rotation of the sliding door. The hanging wheel is used for sliding doors in balconies, kitchens and dining rooms. It is an important component of the sliding door and actually plays a role of buffering closing. It lifts the door leaf and bears the weight of the door on the wheels, cooperating with the hanging rails to allow the door to move easily. The slider cooperates with the guide rail to enable the sliding door to move smoothly, and the rotating connection between the rotating shaft and the door frame enables the door to rotate at an angle. In the prior art, the hanging wheel, the slider or the rotating shaft is mostly directly fixed on the door panel, and the door panel and the door frame are matched to enable the door to be tightly closed. However, the installation using the structure in the prior art has a technical problem of inconvenient adjustment. Utility Model Content

[0003] The utility model aims to provide a detachable sliding steel door, aiming to solve the technical problem of inconvenient adjustment of the assembly device in the prior art.

[0004] To achieve the above-mentioned purpose, an embodiment of the utility model provides a detachable sliding steel door, comprising a positioning frame, an installation slide bar, a guide bar and a sliding door, the installation slide bar and the guide bar are both fixedly installed on the side of the positioning frame, and the installation slide bar is arranged near the top of the positioning frame, one end of the installation slide bar extends to one side edge of the positioning frame, and the other end of the installation slide bar extends out of the positioning frame, the guide bar is arranged near the bottom of the positioning frame, the top of the sliding door is slidably connected with the installation slide bar, and the bottom of the sliding door is slidably connected with the guide bar, a positioning sliding groove is arranged on one inner side surface of the sliding groove of the installation slide bar, one end of the positioning sliding groove extends downward and is connected to the air avoidance hole opened on the side surface of the installation slide bar, a fixing device is arranged on the sliding door, and a sliding protrusion is arranged on the telescopic end side of the fixing device, and the sliding protrusion can be slidably connected with the positioning sliding groove.

[0005] Preferably, the fixing device includes an adjusting wheel and a telescopic strip, the adjusting wheel is rotatably mounted on the side of the sliding door, the telescopic strip is slidably mounted on the side of the sliding door up and down, the sliding protrusion is arranged on the telescopic strip near the bottom, and the telescopic strip is meshingly connected with the adjusting wheel.

[0006] Preferably, a mounting groove is provided on the sliding door, and the telescopic strip is slidably installed in the mounting groove.

[0007] Preferably, a plurality of pulley devices are provided at the bottom of the sliding door, and the pulley devices are slidably connected to the guide strips.

[0008] Preferably, the pulley device includes a connecting device, a mounting shell, a T-shaped slider, an eccentric rotating wheel, a first bevel gear, a second bevel gear and an adjusting rod, the T-shaped slider is installed in the mounting shell for transverse sliding, the first bevel gear is fixedly installed on the side of the T-shaped slider, and the first bevel gear is located on one side of the partition plate of the T-shaped slider, one end of the adjusting rod penetrates into the mounting shell and passes through the partition plate to be arranged, the second bevel gear is threadedly installed on the adjusting rod, and the bottom plane of the second bevel gear is tightly attached to the side of the partition plate, the first bevel gear and the second bevel gear are meshedly connected, the eccentric rotating wheel is rotatably installed in the mounting shell, and the eccentric shaft of the eccentric rotating wheel is clamped with the T-shaped slider for pushing the T-shaped slider to move transversely, and the connecting device is rotatably connected to the other end of the adjusting rod for realizing the assembly of the door panel.

[0009] Preferably, the connecting device is a slider slidably connected to the guide bar and guide rail, one end of the adjusting rod is rotatably connected to the central position of the side of the slider, and the slider is provided with a moving wheel.

[0010] Preferably, the T-shaped slider also includes a mounting plate, the first bevel gear is fixedly mounted on the side of the mounting plate, the eccentric shaft is clamped with the other side of the mounting plate, the mounting plate is laterally slidably mounted in the mounting shell, and the partition plate is perpendicular to the side of the mounting plate to separate the side of the mounting plate to form two mounting areas.

[0011] Preferably, a clamping groove and a sliding groove are provided on the side surface of the mounting plate, the sliding groove is arranged transversely, the mounting shell is slidably connected to the sliding groove, and the eccentric shaft is clamped in the clamping groove.

[0012] Preferably, the opening of the clamping groove is a waist-shaped hole, and the straight side of the waist-shaped hole is perpendicular to the sliding groove, and the eccentric shaft moves within the range of the waist-shaped hole.

[0013] Preferably, a clearance position is provided on the partition plate, and the adjustment rod is arranged through the clearance position.

[0014] The above one or more technical solutions of the detachable sliding steel door provided by the embodiment of the utility model have at least one of the following technical effects:

[0015] The detachable sliding steel door in the utility model is assembled from a positioning frame, an installation slide bar, a guide bar and a sliding door, wherein the positioning door frame is used to limit the position of the door, the installation slide bar and the guide bar are arranged relatively to each other up and down, and the installation slide bar and the guide bar are fixedly installed on the same side of the positioning frame, and the sliding door is slidably installed between the installation slide bar and the guide bar, and a positioning slide groove and an avoidance hole are also arranged on the inner side surface of the sliding groove at the bottom of the installation slide bar, and the position of the positioning slide groove near the end portion extends downward and is connected with the avoidance hole, and a fixing device is arranged on the sliding door, and a telescopic end is arranged on the fixing device, and the telescopic end can even be positioned in the position of the positioning slide groove, and a sliding protrusion is arranged on the telescopic end, and the connection between the sliding protrusion and the positioning slide groove realizes the directional sliding of the sliding door, and the telescopic end is lowered so that the sliding protrusion can be separated from the positioning slide groove through the avoidance hole, thereby completing the disassembly of the sliding door. Through the above structure, the sliding door in the present application can realize the disassembly of the sliding door by operating the fixing device to adjust the telescopic end. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a rendering of a detachable sliding steel door provided in an embodiment of the utility model.

[0018] Figure 2 A front view of a detachable sliding steel door provided in an embodiment of the utility model.

[0019] Figure 3 A side view of a mounting slide bar for a detachable sliding steel door provided in an embodiment of the utility model.

[0020] Figure 4 A cutaway view of a mounting slide bar for a detachable sliding steel door provided in an embodiment of the utility model.

[0021] Figure 5 A front view of a fixing device for a detachable sliding steel door provided in an embodiment of the utility model.

[0022] Figure 6 This is a rendering of a pulley device for a detachable sliding steel door provided in an embodiment of the utility model.

[0023] Figure 7 This is a main body effect diagram of a pulley device for a detachable sliding steel door provided in an embodiment of the utility model.

[0024] Figure 8A rendering of the power structure of a pulley device for a detachable sliding steel door provided in an embodiment of the utility model.

[0025] Fig. 9 A rendering of a T-shaped plate of a pulley device for a detachable sliding steel door provided in an embodiment of the utility model.

[0026] Fig.10 This is a rendering of an eccentric rotating wheel of a pulley device for a detachable sliding steel door provided in an embodiment of the utility model.

[0027] Among them, the reference numerals in the figure are:

[0028] 10—positioning frame 20—installation slide 21—positioning slide

[0029] 22—avoidance hole 30—guide strip 40—sliding door

[0030] 41 - Fixing device 42 - Pulley device 411 - Adjusting wheel

[0031] 412—telescopic strip 421—connecting device 422—mounting housing

[0032] 423—T-shaped slider 424—eccentric rotating wheel 425—first bevel gear

[0033] 426—second bevel gear 427—adjusting rod 4211—sliding block

[0034] 4212—Moving wheel 4221—Main body 4222—Front housing

[0035] 4223—rear housing 4231—partition plate 4232—mounting plate

[0036] 4241—eccentric shaft 4242—positioning member 4271—limiting part DETAILED DESCRIPTION

[0037] The following describes the embodiments of the present invention in detail. Figures 1 to 10 , wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the utility model, and should not be construed as limiting the utility model.

[0038] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0040] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0041] In one embodiment of the present invention, Figures 1 to 5 As shown, a detachable sliding steel door is provided, including a positioning frame 10, an installation slide bar 20, a guide bar 30 and a sliding door 40. The installation slide bar 20 and the guide bar 30 are both fixedly installed on the side of the positioning frame 10, and the installation slide bar 20 is arranged near the top of the positioning frame 10, one end of the installation slide bar 20 extends to one side edge of the positioning frame 10, and the other end of the installation slide bar 20 extends outward of the positioning frame 10, and the guide bar 30 is arranged near the bottom of the positioning frame 10, the top of the sliding door 40 is slidably connected to the installation slide bar 20, the bottom of the sliding door 40 is slidably connected to the guide bar 30, and the bottom of the sliding door 40 is slidably connected to the guide bar 30, and a positioning slide groove 21 is arranged on one inner side surface of the sliding groove of the installation slide bar 20, one end of the positioning slide groove 21 extends downward and is connected to the avoidance hole 22 opened on the side of the installation slide bar 20, and a fixing device 41 is arranged on the sliding door 40, and a sliding protrusion is arranged on the telescopic end side of the fixing device 41, and the sliding protrusion can be slidably connected with the positioning slide groove 21.

[0042] The detachable sliding steel door in the utility model is assembled by a positioning frame 10, a mounting slide bar 20, a guide bar 30 and a sliding door 40, wherein the positioning door frame is used to limit the position of the door, the mounting slide bar 20 and the guide bar 30 are arranged relatively up and down, and the mounting slide bar 20 and the guide bar 30 are fixedly installed on the same side of the positioning frame 10, and the sliding door 40 is slidably installed between the mounting slide bar 20 and the guide bar 30. A positioning slide groove 21 and an avoidance hole 22 are also arranged on the inner side of the sliding groove at the bottom of the mounting slide bar 20, and the position of the positioning slide groove 21 near the end extends downward and is connected to the guide bar 30. The air avoidance hole 22 is connected, and a fixing device 41 is arranged on the sliding door 40. A telescopic end is arranged on the fixing device 41, and the telescopic end can even position the positioning slide groove 21, and a sliding protrusion is arranged on the telescopic end. The connection between the sliding protrusion and the positioning slide groove 21 realizes the directional sliding of the sliding door 40. The telescopic end is lowered so that the sliding protrusion can be separated from the positioning slide groove 21 through the air avoidance hole 22, thereby completing the disassembly of the sliding door 40. Through the above structure, the sliding door 40 in the present application can be disassembled by operating the fixing device 41 to adjust the telescopic end.

[0043] In another embodiment of the present invention, Figure 1 and Figure 5 As shown, the fixing device 41 includes an adjusting wheel 411 and a telescopic strip 412. The adjusting wheel 411 is rotatably installed on the side of the sliding door 40, and the telescopic strip 412 is slidably installed on the side of the sliding door 40. The sliding protrusion is provided on the telescopic strip 412 near the bottom. The telescopic strip 412 is meshedly connected with the adjusting wheel 411. The height of the telescopic strip 412 is adjusted by rotating the adjusting wheel 411, thereby driving the sliding protrusion on the telescopic strip 412 to switch between the air avoidance hole 22 and the positioning sliding groove. The top end of the telescopic strip 412 protrudes from the top of the sliding door 40.

[0044] In another embodiment of the present invention, Figure 1 As shown, a mounting groove is provided on the sliding door 40 , and the telescopic strip 412 is slidably installed in the mounting groove, which effectively hides the telescopic strip 412 and enables the telescopic strip 412 to better extend into the mounting slide bar 20 .

[0045] In another embodiment of the present invention, Figure 1 and Figure 6 As shown, a plurality of pulley devices 42 are provided at the bottom of the sliding door 40 , and the pulley devices 42 are slidably connected to the guide strips 30 , and the smooth movement of the sliding door 40 is achieved through the pulley devices 42 .

[0046] In another embodiment of the present invention, Figure 6As shown, the pulley device 42 includes a connecting device 421, an installation shell 422, a T-shaped slider 423, an eccentric rotating wheel 424, a first bevel gear 425, a second bevel gear 426 and an adjusting rod 427. The connecting device 421 is used to realize the connection relationship between the door panel and the door frame. The T-shaped slider 423 is installed in the installation shell 422 for transverse sliding to realize the transverse reciprocating movement of the T-shaped slider 423. The first bevel gear 425 is fixedly installed on the side of the T-shaped slider 423 to ensure that the first bevel gear 425 will not move due to external force when the T-shaped slider 423 moves, and the first bevel gear 425 is located on one side of the partition plate 4231 of the T-shaped slider 423. One end of the adjusting rod 427 penetrates into the installation shell 422 and passes through the partition plate 4231. The second bevel gear 426 is screwed into the installation shell 422. The first bevel gear 425 is meshingly connected with the second bevel gear 426, and the first bevel gear 425 drives the second bevel gear 426 meshingly connected with it to rotate under the movement of the T-shaped slider 423. Since the second bevel gear 426 is limited by the first bevel gear 425 and the partition plate 4231, when the second bevel gear 426 rotates, it drives the adjusting rod 427 to move up and down. The eccentric rotating wheel 424 is rotatably installed in the mounting shell 422, and the eccentric shaft 4241 of the eccentric rotating wheel 424 is clamped with the T-shaped slider 423, which is used to push the T-shaped slider 423 to move horizontally. The connecting device 421 is rotatably connected to the other end of the adjusting rod 427 to realize the assembly of the door panel.

[0047] The pulley device 42 in the utility model is assembled by a connecting device 421, a mounting shell 422, a T-shaped slider 423, an eccentric rotating wheel 424, a first bevel gear 425, a second bevel gear 426 and an adjusting rod 427, wherein the connecting device 421 can select a slider 4211, a fixing member 422 or a pulley device 42 according to the assembly requirements to achieve the diversity of the easy-to-disassemble sliding steel door adaptation, the mounting shell 422 is used to be fixedly installed on the door panel, the T-shaped slider 423 is used to partition the space for easy assembly of accessories, the eccentric rotating wheel 424 is used to drive the T-shaped slider 423 to move, and the first The bevel gear 425 and the second bevel gear 426 are used to realize power transmission. The adjustment rod 427 is used to adjust the distance between the connecting device 421 and the installation shell 422 to realize fine adjustment of the door panel installation. During assembly, the T-shaped slider 423 is installed in the installation shell 422 by sliding horizontally, and the moving path of the T-shaped slider 423 is oriented. The first bevel gear 425 is fixedly installed on the side of the T-shaped slider 423, and the first bevel gear 425 is located on one side of the partition plate 4231 of the T-shaped slider 423. One end of the adjustment rod 427 passes through the installation shell 422 and extends inwardly through the partition plate 4231 to set , the second bevel gear 426 is threadedly mounted on the adjusting rod 427, and the bottom plane of the second bevel gear 426 is in close contact with the side of the partition plate 4231, the first bevel gear 425 is meshed with the second bevel gear 426, and the second bevel gear 426 is limited by the first bevel gear 425, the partition plate 4231 and the adjusting rod 427. When the T-shaped slider 423 moves laterally, the meshing connection between the first bevel gear 425 and the second bevel gear 426 makes the first bevel gear 425 push the second bevel gear 426 to rotate around the adjusting rod 427. The two gears are connected by a threaded rotation connection, thereby driving the adjustment rod 427 to move up and down relative to the second bevel gear 426. The eccentric rotating wheel 424 is rotatably installed in the installation shell 422, and the eccentric shaft 4241 of the eccentric rotating wheel 424 passes through the installation shell 422 and is engaged with the side of the T-shaped slider 423. Through the rotation of the eccentric rotating wheel 424, the eccentric shaft 4241 pushes the T-shaped slider 423 to move back and forth laterally, thereby realizing the up and down movement adjustment of the adjustment rod 427. Through the above-mentioned structural arrangement, the detachable sliding steel door in the present application can adjust the tightness of the door panel assembly through a simple adjustment action.

[0048] In another embodiment of the present invention, Figure 6 As shown, the connecting device 421 is a slider 4211 that is slidably connected to the guide rail of the guide bar 30, one end of the adjusting rod 427 is rotatably connected to the central position of the side of the slider 4211, and a moving wheel 4212 is provided on the slider 4211. The movement of the door panel is achieved through the sliding connection between the slider 4211 and the guide rail on the door frame, and the moving wheel 4212 is adjusted to change the friction coefficient of the movement of the slider 4211.

[0049] In another embodiment of the present invention, Figure 6 and Figures 8-9 As shown, the T-shaped slider 423 also includes a mounting plate 4232, the first bevel gear 425 is fixedly mounted on the side of the mounting plate 4232, the eccentric shaft 4241 is clamped with the other side of the mounting plate 4232, the mounting plate 4232 is laterally slidably installed in the mounting shell 422, and the partition plate 4231 is perpendicular to the side of the mounting plate 4232 to separate the side of the mounting plate 4232 to form two mounting areas. The partition plate 4231 has a separating effect on the mounting plate 4232, which reduces the assembly space, so that the first bevel gear 425 and the partition plate 4231 can better limit the second bevel gear 426.

[0050] In another embodiment of the present invention, Figure 6 and Figures 8-9 As shown, a snap-in groove and a slide groove are provided on the side of the mounting plate 4232, the slide groove is arranged horizontally, the mounting shell 422 is slidingly connected to the slide groove, the eccentric shaft 4241 is snap-into the snap-in groove, and the lateral movement of the mounting plate 4232 is realized through the sliding connection between the slide groove and the mounting shell 422, and the snap-in groove is used to accommodate the eccentric shaft 4241.

[0051] In another embodiment of the present invention, Figures 1-2 and Figures 4-5 As shown, the opening of the clamping groove is a waist-shaped hole, and the straight edge of the waist-shaped hole is perpendicular to the slide groove. The eccentric shaft 4241 moves within the range of the waist-shaped hole. The eccentric shaft 4241 pushes the T-shaped slider 423 to move while moving up and down in the clamping groove, and the moving range of the eccentric shaft 4241 is within the range of the waist-shaped hole.

[0052] In another embodiment of the present invention, Figures 1-2 and Figures 4-5 As shown, a clearance position is set on the partition plate 4231, and the adjustment rod 427 passes through the clearance position. The clearance position that passes through the facility can more intuitively observe the connection status between the first bevel gear 425, the second bevel gear 426 and the connecting rod, and is convenient for adjustment.

[0053] In another embodiment of the present invention, Figure 6 , Figure 8 and Fig.10As shown, the mounting housing 422 includes a main body 4221, a front housing 4222 and a rear housing 4223, a T-shaped slider 423 is slidably mounted in the main body 4221, one end of the adjusting rod 427 extends through the main body 4221, an eccentric rotating wheel 424 is rotatably mounted on the main body 4221, the front housing 4222 and the rear housing 4223 are respectively arranged on the front and rear sides of the main body 4221, and the front housing 4222 and the rear housing 4223 are both clamped with the bottom of the main body 4221, and the front housing 4222 and the rear housing 4223 are respectively clamped with the bottom of the main body 4221. The tops of the main body 4221 are extended toward each other and snap-fitted together. The front shell 4222 and the rear shell 4223 wrap up the main body 4221, and at the same time, the assembly hole of the eccentric rotating wheel 424 on the main body 4221 is covered to prevent it from being operated accidentally. A closed protrusion with a serrated side is provided on the outer side surface of the eccentric rotating wheel 424, and a positioning piece 4242 is provided in the assembly hole of the main body 4221. The positioning piece 4242 is tightly snap-fitted with the serrated side of the closed protrusion to prevent the adjusted eccentric rotating wheel 424 from rotating.

[0054] like Figure 6 As shown, a snap fastener is provided at the top of the main body 4221, and the snap fastener is rotatably connected to the top of the main body 4221. During assembly, the extended end at the top of the front shell 4222 pushes the snap fastener, so that the snap fastener rotates and fits tightly against the top of the main body 4221. At the same time, the snap fastener is snapped with the snap-fitting vertical plate extending from the top side of the rear shell 4223 to complete the assembly.

[0055] In another embodiment of the present invention, Figures 6-7 As shown, the main body 4221 is provided with mounting holes which pass through both sides of the main body 4221, the T-shaped slider 423 is slidably installed in the mounting hole, one end of the adjusting rod 427 passes through the main body 4221 and extends into the mounting hole, the eccentric shaft 4241 extends into the mounting hole and engages with the T-shaped slider 423, and the mounting holes which are set through the holes facilitate the installation of the T-shaped slider 423, and at the same time facilitate the intuitive observation of the connection status between the first bevel gear 425, the second bevel gear 426 and the adjusting rod 427.

[0056] In another embodiment of the present invention, Figures 6-7 As shown, a guide hole with a polygonal cross-section is provided on the main body 4221, and a limiting portion 4271 is provided on the adjusting rod 427, which is slidably engaged with the guide hole. The limiting portion 4271 is slidably engaged in the guide hole, and the polygonal guide hole cooperates with the limiting portion 4271 to limit the rotation of the adjusting rod 427 during the movement.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detachable sliding steel door, characterized in that: The cam is configured to move the locking cam to a position adjacent to the locking cam of the locking cam, wherein the locking cam is configured to move the locking cam to a position adjacent to the locking cam of the locking cam.

2. The detachable sliding steel door according to claim 1, characterized in that: The fixing device includes an adjusting wheel and a telescopic strip, wherein the adjusting wheel is rotatably mounted on the side of the sliding door, and the telescopic strip is slidably mounted on the side of the sliding door up and down, and the sliding protrusion is arranged on the telescopic strip near the bottom, and the telescopic strip is meshingly connected with the adjusting wheel.

3. The detachable sliding steel door according to claim 2, characterized in that: The sliding door is provided with an installation groove, and the telescopic strip is slidably installed in the installation groove.

4. The detachable sliding steel door according to claim 1, characterized in that: A plurality of pulley devices are arranged at the bottom of the sliding door, and the pulley devices are slidably connected with the guide strips.

5. The detachable sliding steel door according to claim 4, characterized in that: The pulley device includes a connecting device, a mounting shell, a T-shaped slider, an eccentric rotating wheel, a first bevel gear, a second bevel gear and an adjusting rod. The T-shaped slider is installed in the mounting shell for transverse sliding. The first bevel gear is fixedly installed on the side of the T-shaped slider, and the first bevel gear is located on one side of the partition plate of the T-shaped slider. One end of the adjusting rod penetrates into the mounting shell and passes through the partition plate to be set. The second bevel gear is threadedly installed on the adjusting rod, and the bottom plane of the second bevel gear is tightly attached to the side of the partition plate. The first bevel gear and the second bevel gear are meshed and connected. The eccentric rotating wheel is rotatably installed in the mounting shell, and the eccentric shaft of the eccentric rotating wheel is clamped with the T-shaped slider for pushing the T-shaped slider to move transversely. The connecting device is rotatably connected to the other end of the adjusting rod for realizing the assembly of the door panel.

6. The detachable sliding steel door according to claim 5, characterized in that: The connecting device is a slider slidably connected to the guide bar and guide rail, one end of the adjusting rod is rotatably connected to the central position of the side of the slider, and a moving wheel is arranged on the slider.

7. The detachable sliding steel door according to claim 5, characterized in that: The T-shaped slider also includes a mounting plate, the first bevel gear is fixedly mounted on a side surface of the mounting plate, the eccentric shaft is clamped with the other side surface of the mounting plate, the mounting plate is laterally slidably mounted in the mounting shell, and the partition plate is perpendicular to the side surface of the mounting plate to separate the side surface of the mounting plate to form two mounting areas.

8. The detachable sliding steel door according to claim 7, characterized in that: A clamping groove and a sliding groove are arranged on the side surface of the mounting plate. The sliding groove is arranged transversely. The mounting shell is slidably connected to the sliding groove. The eccentric shaft is clamped in the clamping groove.

9. The detachable sliding steel door according to claim 8, characterized in that: The opening of the clamping groove is a waist-shaped hole, and the straight side of the waist-shaped hole is perpendicular to the sliding groove, and the eccentric shaft moves within the range of the waist-shaped hole.

10. The detachable sliding steel door according to claim 5, characterized in that: The partition plate is provided with a space avoiding position, and the adjusting rod is arranged through the space avoiding position.

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