Protective fence for classroom safety management

Abstract

The invention relates to the technical field of protective fences, and discloses a protective fence for classroom safety management, the protective fence comprises a protective fence main body and a protective fence opening part rotatably mounted in the protective fence main body, the outer side of the protective fence opening part is provided with a protective assembly, and the interior of the protective fence opening part is provided with an adjusting assembly; the protection assembly comprises two driving rods which are slidably installed on one side in the guardrail opening part, side plates are slidably installed on the two sides of the outer portion of the guardrail body, and pressing rods, pressing discs and push rods are sequentially and fixedly connected to the outer sides of the side plates from top to bottom. When blown by a wind body on the side face or in the vertical direction, the wind body acts on the side plates or the movable plates, the two side positions and the inner side position of the guardrail opening part are tightly abutted and reinforced, the supporting effect and the supporting strength are further improved, the guardrail opening part is stably unfolded for use, and the emergency escape ladder can be conveniently lapped and used during follow-up fire fighting and disaster relief.

Description

Technical Field

[0001] This invention relates to the field of guardrail technology, specifically a guardrail for classroom safety management. Background Technology

[0002] Window railings can effectively prevent students from climbing out of windows out of curiosity, and can also prevent criminals from entering the campus, ensuring the personal safety of students. Therefore, classroom windows (especially those on the second floor and above facing the sky) usually need to be equipped with railings to prevent students from accidentally falling out.

[0003] For example, a window guardrail for a building wall, with announcement number CN218150670U, belongs to the technical field of window guardrails. It includes a guardrail body with a window inside. A drying rack is rotatably installed inside the window, and the drying rack is adapted to the size of the window. Slide grooves are formed on both the left and right surfaces of the drying rack, and slots are formed within each slide groove. Two support rods are rotatably installed inside the window, and connecting posts are fixedly installed on the inner surfaces of the support rods. The connecting posts are slidably connected to their corresponding slide grooves and are engaged in the slots. A through hole is formed on the front surface of the drying rack, and an insertion hole is formed inside the guardrail body. A pin is inserted into the insertion hole, and the pin passes through the through hole. When the drying rack is flipped upwards, the support rods rotate, and the connecting posts slide within the slide grooves of the drying rack. When the connecting posts slide to the slot positions, the weight of the drying rack itself engages the connecting posts in the slots, supporting the drying rack.

[0004] However, considering the requirements for fire rescue in classrooms, window railings need to adopt a non-fully enclosed design (such as pull-back or sliding windows) to ensure unobstructed rescue and escape routes. Existing non-fully enclosed railings, when opened from the inside, expose the opened portion to external wind forces. Strong winds from high-rise buildings directly act on the railing surface, especially large-area railings or those with insufficient structural stability, which are prone to swaying. Furthermore, loose railing fasteners (such as screws and brackets) or poor load-bearing capacity of the supporting structure (such as wind braces) cannot effectively resist wind forces and may even exacerbate the swaying of the railing, thus affecting the normal stability of the railing. Summary of the Invention

[0005] The purpose of this invention is to provide a safety railing for classroom management, which solves the problem that strong winds acting on the open part of the railing surface can cause the fasteners to loosen, making it easy to shake and affecting the stability of the railing during normal use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a protective railing for classroom safety management, comprising a railing body and a railing support portion rotatably installed inside the railing body, wherein a connecting rod is uniformly fixedly connected to one side of the railing body, and the same mounting frame is fixedly connected to the side of the connecting rod away from the railing body. Also includes: A protective component is provided on the outer side of the guardrail support, and an adjustment component is provided inside the guardrail support. The protective component includes two drive rods that are slidably installed on one side of the guardrail support, and a sliding rod is fixedly connected to the side of the guardrail support near the drive rods; Side plates are slidably installed on both sides of the main body of the guardrail. From top to bottom, pressure rods, pressure plates and push rods are fixedly connected to the outer side of the side plates. A movable plate is slidably installed on the bottom of the front side of the main body of the guardrail. A pressure strip is installed on the lower front side of the guardrail support.

[0007] Preferably, a fixing block is fixedly connected to the inner side of each of the two connecting rods in the middle of both sides. The driving rod is slidably connected to the fixing block. A pin is slidably connected to the bottom of the fixing block. An insertion hole is opened at the bottom of the driving rod. The pin is engaged with the insertion hole. A connecting piece is fixedly connected to the lower outer part of the pin. A spring is sleeved on the outer side of the pin. The two ends of the spring are fixedly connected to the connecting piece and the fixing block, respectively. A sleeve block is slidably connected to the outer side of the sliding rod. The sleeve block is rotatably connected to the driving rod.

[0008] By adopting the above technical solution and setting up protective components, the cooperation of the drive rod and the pin facilitates the unfolding and initial locking of the guardrail support, maintaining the stability of the guardrail support. With the cooperation of the mutually perpendicular side plates and the movable plate, when the guardrail support is unfolded, it will act on the side plates or the movable plate when blown by the wind from the side or vertical direction, thereby achieving tight reinforcement of the two sides and the inner side of the guardrail support, further improving the support effect and support strength.

[0009] Preferably, the guardrail support portion has a sliding groove and a pressing groove on the side near the side plate, the pressing rod is slidably connected to the sliding groove, a second spring is fixedly connected to one side of the inner wall of the sliding groove, the second spring is fixedly connected to the pressing rod, and the pressing plate is slidably connected to the pressing groove.

[0010] By adopting the above technical solution, when the wind pushes the side plate to move, the side plate drives the pressure rod, pressure plate and push rod to move. The pressure rod slides into the slide groove and compresses the second spring, and the pressure plate squeezes the outside of the guardrail support.

[0011] Preferably, a rotating shaft is fixedly connected to the lower outer side of the guardrail support, the rotating shaft is rotatably connected to the guardrail body, and a lower plate is symmetrically fixedly connected to the bottom of the guardrail body. There are at least two lower plates, and a moving rod is slidably connected inside the lower plate. A push block is fixedly connected to one end of the moving rod.

[0012] By adopting the above technical solution, when the wind pushes the moving plate to move, the moving plate drives the moving rod to move, and the moving rod drives the push block to move.

[0013] Preferably, a movable plate is fixedly connected to the other end of the movable rod, a spring three is sleeved on the outside of the movable rod, and the two ends of the spring three are fixedly connected to the lower plate and the movable plate respectively. A strip groove is symmetrically opened at the bottom of the guardrail body, and an inner rod is fixedly connected inside the strip groove.

[0014] By adopting the above technical solution, when the moving plate moves, it will compress spring three, thus maintaining the stable sliding of the moving rod.

[0015] Preferably, a movable block is slidably connected to the outer side of the inner rod, a trapezoidal block is fixedly connected to the bottom of the movable block, the push rod abuts against the inclined surface of the trapezoidal block, the push block abuts against the trapezoidal block, the number of movable blocks is the same as that of the lower plate, and the movable block is fixedly connected to the pressure strip.

[0016] By adopting the above technical solution, the moving rod pushes the trapezoidal block through the push block, and the trapezoidal block also drives the moving block to move. The moving block drives the pressure strip to press against the lower part of the front side of the guardrail support.

[0017] Preferably, the adjusting component includes a top groove formed on the top of the guardrail body, an inner block slidably connected inside the top groove, a tightening bolt threadedly connected to the top of the inner block, an adjusting rod fixedly connected to the bottom of the inner block, a limiting groove formed on the outer side of the adjusting rod, and a support unit provided between two adjacent limiting grooves.

[0018] By adopting the above technical solution, the tightening bolt is loosened, the adjusting rod is pulled to move, the adjusting rod drives the inner block to move, the inner block slides inside the top groove, and after adjustment, the tightening bolt is tightened. The tightening bolt presses on the top surface of the guardrail support, which facilitates fixing the position of the adjusting rod.

[0019] Preferably, the support unit includes an upper limit block, a mounting block, a diagonal rod, an auxiliary block, a lower limit block, and a central disk. The outer two sides of the central disk are respectively rotatably connected to two diagonal rods. The top of the diagonal rod is rotatably connected to the mounting block. One side of the mounting block is fixedly connected to the upper limit block.

[0020] By adopting the above technical solution, when the adjusting rod drives the upper limit block to move, the upper limit block drives the mounting block and the inclined rod to move, and the inclined rod rotates around the central disk.

[0021] Preferably, the bottom end of the inclined rod is rotatably connected to the auxiliary block, one side of the auxiliary block is fixedly connected to the lower limit block, the upper limit block is slidably connected to the limit groove on one side, and the lower limit block is slidably connected to the limit groove on the other side.

[0022] By adopting the above technical solution, the inclined rod will expand when adjacent adjusting rods are far apart and retract when adjacent adjusting rods are close together, making it convenient to flexibly adjust the distance between the adjusting rods.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting up protective components and utilizing the cooperation of the drive rod and the pin, the opening and initial locking of the guardrail support section are easily realized, maintaining the stability of the guardrail support section. Utilizing the cooperation of mutually perpendicular side plates and a movable plate, when the guardrail support section is opened, it is acted upon by wind blowing from the side or vertical direction, thereby achieving tight reinforcement of the two sides and the inner side of the guardrail support section, further improving the support effect and strength, maintaining the stable opening and use of the guardrail support section, and reducing the shaking and wear of the main body fixing components of the guardrail. This also facilitates the subsequent use of life ladders during fire rescue operations. The specific details are as follows: By setting up protective components, the operator pulls the pin, which moves the connecting piece. The connecting piece stretches spring one, causing the pin to separate from the socket. Then, the operator pushes the drive rod, which moves the sleeve block. The sleeve block slides on the slide rod, and the sleeve block pushes the guardrail support part to rotate and open through the slide rod. After the guardrail support part rotates to the appropriate position, the pin is released. The elasticity of spring one moves the connecting piece and the pin, allowing the pin to insert into the corresponding socket, facilitating the initial fixation of the drive rod and the guardrail support part. When the sides of the guardrail support part are exposed to wind, the wind pushes the side plate to move. The side plate moves the pressure rod, pressure plate, and push rod. The pressure rod slides into the groove and compresses spring two. The pressure plate presses against the outer side of the guardrail support part, and the push rod presses against the inclined side of the trapezoidal block. The trapezoidal block drives the moving block to move. The moving block slides on the inner rod and drives the pressure strip to move. The pressure strip presses against the lower part of the front side of the guardrail opening, thereby further pressing and fixing the guardrail opening. When the guardrail opening is blown by vertical wind, the wind pushes the moving plate to move. The moving plate compresses the spring and drives the moving rod to move. The moving rod pushes the trapezoidal block through the push block, and the trapezoidal block also drives the moving block to move. This ensures that when the guardrail opening is blown by wind from the side or vertical direction, the two sides and the inner side of the guardrail opening will be pressed and reinforced. This solves the problem that strong winds acting on the surface of the open guardrail will cause the guardrail fasteners to loosen, making it easy to shake and affecting the stability of the guardrail during normal use. By setting up the adjustment component, the operator loosens the clamping bolt and pulls the adjustment rod to move it. The adjustment rod drives the inner block to move, and the inner block slides inside the top groove. After adjustment, the clamping bolt is tightened, and the clamping bolt presses against the top surface of the guardrail support, which facilitates fixing the position of the adjustment rod. When the adjustment rod is adjusted, the adjustment rod drives the upper limit block to move, and the upper limit block drives the mounting block and the inclined rod to move. The inclined rod rotates around the central disc, and at the same time, the inclined rod drives the auxiliary block to move. The auxiliary block drives the lower limit block to move, and the upper limit block and the lower limit block slide inside the limit groove. When adjacent adjustment rods move away from each other, the inclined rod will unfold; when adjacent adjustment rods move closer to each other, the inclined rod will retract, which facilitates flexible adjustment of the distance between the adjustment rods. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the first three-dimensional overall structure of the present invention; Figure 2 This is a schematic diagram of the second three-dimensional overall structure of the present invention; Figure 3 This is a schematic diagram of the guardrail support structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the side plate structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the horizontal bar structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C; Figure 9 This is an exploded view of the pressure strip connection structure of the present invention; Figure 10 This is a schematic diagram of the pressure plate structure of the present invention; Figure 11 This is a cross-sectional view of the guardrail support structure of the present invention; Figure 12 For the present invention Figure 11 Enlarged structural diagram at point D; Figure 13 This is a schematic cross-sectional view of the adjusting rod of the present invention; Figure 14 For the present invention Figure 13 Enlarged structural diagram at point E in the middle.

[0025] In the diagram: 1. Guardrail body; 2. Connecting rod; 3. Mounting frame; 4. Guardrail support; 5. Protective components; 51. Fixing block; 52. Pin; 53. Insertion hole; 54. Connecting piece; 55. Spring 1; 56. Drive rod; 57. Slide rod; 58. Sleeve block; 59. Side plate; 510. Pressure rod; 511. Slide groove; 512. Spring 2; 513. Pressure groove; 514. Pressure plate; 515. Push rod; 516. Lower plate; 517. Moving rod; 518. Push block; 519. Moving plate; 520. Spring 3; 521. Strip groove; 522. Inner rod; 523. Trapezoidal block; 524. Moving block; 525. Pressure strip; 6. Adjustment assembly; 61. Top groove; 62. Inner block; 63. Tightening bolt; 64. Adjusting rod; 65. Limit groove; 66. Upper limit block; 67. Mounting block; 68. Diagonal rod; 69. Auxiliary block; 610. Lower limit block; 611. Center plate; 7. Rotating shaft. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1 - Figure 3 The present invention provides a technical solution: a protective railing for classroom safety management, including a railing body 1 and a railing support 4 rotatably installed inside the railing body 1. A connecting rod 2 is uniformly fixedly connected to one side of the railing body 1, and the same mounting frame 3 is fixedly connected to the side of the connecting rod 2 away from the railing body 1.

[0028] like Figure 1 and Figure 3 - Figure 10 As shown, a protective component 5 is provided on the outer side of the guardrail support part 4. The protective component 5 includes two drive rods 56 that are slidably installed on one side of the guardrail support part 4. A sliding rod 57 is fixedly connected to the side of the guardrail support part 4 near the drive rods 56.

[0029] Side plates 59 are slidably installed on both sides of the outer side of the guardrail body 1. From top to bottom, pressure rods 510, pressure plates 514 and push rods 515 are fixedly connected to the outer side of the side plates 59. There are no less than two pressure rods 510 to facilitate the stable sliding of the side plates 59. A movable plate 519 is slidably installed at the bottom of the front side of the guardrail body 1. A pressure strip 525 is installed at the bottom of the front side of the guardrail support part 4.

[0030] Two fixing blocks 51 are fixedly connected to the inner sides of the two connecting rods 2 in the middle of both sides. There are two fixing blocks 51. The number of driving rods 56 is the same as that of fixing blocks 51. The driving rods 56 are slidably connected to the fixing blocks 51. A pin 52 is slidably connected to the bottom of the fixing block 51. A hole 53 is opened at the bottom of the driving rod 56. The pin 52 is engaged with the hole 53. There are no less than two holes 53 to facilitate the sliding and limiting of the driving rod 56. A connecting piece 54 is fixedly connected to the lower outer side of the pin 52. A spring 55 is sleeved on the outer side of the pin 52. The two ends of the spring 55 are fixedly connected to the connecting piece 54 and the fixing block 51 respectively. A sleeve block 58 is slidably connected to the outer side of the slide rod 57. The sleeve block 58 is rotatably connected to the driving rod 56.

[0031] The guardrail support part 4 has a sliding groove 511 and a pressing groove 513 on the side near the side plate 59. The pressing rod 510 is slidably connected to the sliding groove 511. A second spring 512 is fixedly connected to one side of the inner wall of the sliding groove 511. The second spring 512 is fixedly connected to the pressing rod 510. The pressing plate 514 is slidably connected to the pressing groove 513. The pressing plate 514 is used to press and fix the two sides of the guardrail support part 4.

[0032] A pivot 7 is fixedly connected to the lower outer side of the guardrail support 4. The pivot 7 is rotatably connected to the guardrail body 1. A lower plate 516 is symmetrically fixedly connected to the bottom of the guardrail body 1. There are at least two lower plates 516. A moving rod 517 is slidably connected inside the lower plate 516. A push block 518 is fixedly connected to one end of the moving rod 517.

[0033] The other end of the movable rod 517 is fixedly connected to the movable plate 519. A spring 520 is sleeved on the outside of the movable rod 517. The two ends of the spring 520 are fixedly connected to the lower plate 516 and the movable plate 519 respectively. A strip groove 521 is symmetrically opened at the bottom of the guardrail body 1. An inner rod 522 is fixedly connected inside the strip groove 521.

[0034] A movable block 524 is slidably connected to the outer side of the inner rod 522. The movable block 524 can slide inside the strip groove 521. A trapezoidal block 523 is fixedly connected to the bottom of the movable block 524. The push rod 515 abuts against the inclined surface of the trapezoidal block 523. The push block 518 abuts against the trapezoidal block 523. The number of movable blocks 524 is the same as that of the lower plate 516. The movable block 524 is fixedly connected to the pressure strip 525.

[0035] Example 1: As Figure 1 - Figure 10As shown, the operator pulls the pin 52, which moves the connecting piece 54. The connecting piece 54 stretches the spring 55, causing the pin 52 to separate from the socket 53. Then, the operator pushes the drive rod 56, which moves the sleeve block 58. The sleeve block 58 slides on the slide rod 57. The sleeve block 58 pushes the guardrail support part 4 to rotate and open through the slide rod 57. After the guardrail support part 4 rotates to the appropriate position, the pin 52 is released. The elastic force of the spring 55 moves the connecting piece 54 and the pin 52, so that the pin 52 is inserted into the corresponding socket 53, which facilitates the initial fixation of the drive rod 56 and the guardrail support part 4.

[0036] When the sides of the guardrail support 4 are exposed to wind, the wind pushes the side plate 59 to move. The side plate 59 drives the pressure rod 510, pressure plate 514 and push rod 515 to move. The pressure rod 510 slides into the slide groove 511 and compresses the second spring 512. The pressure plate 514 presses the outside of the guardrail support 4. The push rod 515 presses the inclined surface of the trapezoidal block 523. The trapezoidal block 523 drives the moving block 524 to move. The moving block 524 slides on the inner rod 522 and drives the pressure strip 525 to move. The pressure strip 525 presses the lower part of the front side of the guardrail support 4, thereby further pressing and fixing the guardrail support 4.

[0037] When the guardrail support part 4 is blown by a vertical wind, the wind pushes the moving plate 519 to move. The moving plate 519 compresses the spring 520 and drives the moving rod 517 to move. The moving rod 517 pushes the trapezoidal block 523 through the push block 518. The trapezoidal block 523 also drives the moving block 524 to move, so that when the guardrail support part 4 is blown by a side or vertical wind, the two sides and the inner side of the guardrail support part 4 will be tightened and reinforced.

[0038] like Figure 1 and Figure 11 - Figure 14 As shown, the guardrail support 4 is provided with an adjustment component 6 inside. The adjustment component 6 includes a top groove 61 opened on the top of the guardrail body 1. An inner block 62 is slidably connected inside the top groove 61. A tightening bolt 63 is threadedly connected to the top of the inner block 62. An adjustment rod 64 is fixedly connected to the bottom of the inner block 62. The adjustment rod 64 is arranged vertically and parallel. A limit groove 65 is opened on the outer side of the adjustment rod 64. A support unit is provided between two adjacent limit grooves 65.

[0039] The support unit includes an upper limit block 66, a mounting block 67, a diagonal rod 68, an auxiliary block 69, a lower limit block 610, and a central disk 611. The outer sides of the central disk 611 are rotatably connected to the two diagonal rods 68 respectively. The top of the diagonal rod 68 is rotatably connected to the mounting block 67. One side of the mounting block 67 is fixedly connected to the upper limit block 66.

[0040] The bottom end of the diagonal rod 68 is rotatably connected to the auxiliary block 69. One side of the auxiliary block 69 is fixedly connected to the lower limit block 610. The upper limit block 66 is slidably connected to the limit groove 65 on one side. The lower limit block 610 is slidably connected to the limit groove 65 on the other side.

[0041] Example 2: Figure 11 - Figure 14 As shown, the operator loosens the clamping bolt 63 and pulls the adjusting rod 64 to move it. The adjusting rod 64 drives the inner block 62 to move, and the inner block 62 slides inside the top groove 61. After adjustment, the clamping bolt 63 is tightened, and the clamping bolt 63 presses against the top surface of the guardrail support part 4, which facilitates fixing the position of the adjusting rod 64. When the adjusting rod 64 is adjusted, the adjusting rod 64 drives the upper limit block 66 to move, and the upper limit block 66 drives the mounting block 67 and the inclined rod 68 to move. The inclined rod 68 rotates around the central disk 611. At the same time, the inclined rod 68 drives the auxiliary block 69 to move, and the auxiliary block 69 drives the lower limit block 610 to move. The upper limit block 66 and the lower limit block 610 slide inside the limiting groove 65. When adjacent adjusting rods 64 move away from each other, the inclined rod 68 will unfold. When adjacent adjusting rods 64 move closer to each other, the inclined rod 68 will retract, which facilitates flexible adjustment of the distance between the adjusting rods 64.

[0042] Working principle: When using this device, firstly, as... Figure 1 - Figure 14As shown, the operator loosens the clamping bolt 63, pulls the adjusting rod 64 to move it, and after adjustment, tightens the clamping bolt 63 to fix the position of the adjusting rod 64. When the adjusting rod 64 is adjusted, the adjusting rod 64 drives the upper limit block 66 to move, and the upper limit block 66 drives the mounting block 67 and the inclined rod 68 to move. When adjacent adjusting rods 64 move away from each other, the inclined rod 68 will unfold; when adjacent adjusting rods 64 move closer to each other, the inclined rod 68 will retract, facilitating flexible adjustment of the distance between the adjusting rods 64. The operator pulls the pin 52, which drives the connecting piece 54 to move, causing the pin 52 to separate from the insertion hole 53. Then, the operator pushes the drive rod 56, which drives the sleeve block 58 to move. The sleeve block 58 pushes the guardrail opening part 4 to rotate and open through the sliding rod 57. After the guardrail opening part 4 rotates to the appropriate position, the operator releases the pin 52, and the pin 52 is inserted into the corresponding insertion hole 53, facilitating the initial adjustment of the drive rod 56 and the guardrail opening part 4. When the guardrail support 4 is fixed in place, the wind blows on both sides, pushing the side plate 59 to move. The side plate 59 drives the pressure rod 510, pressure plate 514, and push rod 515 to move. The pressure rod 510 slides into the slide groove 511 and compresses the spring 512. The pressure plate 514 presses against the outer side of the guardrail support 4, and the push rod 515 presses against the inclined surface of the trapezoidal block 523. The trapezoidal block 523 drives the moving block 524 to move. The moving block 524 slides on the inner rod 522 and drives the pressure strip 52. 5. The pressure strip 525 presses against the lower part of the front side of the guardrail support part 4, thereby further pressing and fixing the guardrail support part 4. When the guardrail support part 4 is blown by vertical wind, the wind pushes the moving plate 519 to move. The moving plate 519 compresses the spring 3 520 and drives the moving rod 517 to move. The moving rod 517 pushes the trapezoidal block 523 through the push block 518. The trapezoidal block 523 also drives the moving block 524 to move, thereby pressing and reinforcing the guardrail support part 4.

[0043] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A protective fence for classroom safety management, comprising a fence body (1) and a fence support (4) rotatably installed inside the fence body (1), wherein a connecting rod (2) is uniformly fixedly connected to one side of the fence body (1), and the same mounting frame (3) is fixedly connected to the side of the connecting rod (2) away from the fence body (1). Its features are, Also includes: A protective component (5) is provided on the outside of the guardrail support (4), and an adjustment component (6) is provided inside the guardrail support (4). The protective component (5) includes two drive rods (56) that are slidably installed on one side of the guardrail support (4), and a slide rod (57) is fixedly connected to the side of the guardrail support (4) near the drive rods (56). Side plates (59) are slidably installed on both sides of the outer side of the guardrail body (1). From top to bottom, pressure rods (510), pressure plates (514) and push rods (515) are fixedly connected to the outer side of the side plates (59). A movable plate (519) is slidably installed at the bottom of the front side of the guardrail body (1). A pressure strip (525) is installed at the bottom of the front side of the guardrail support part (4).

2. The protective railing for classroom safety management according to claim 1, characterized in that: The inner sides of the two connecting rods (2) in the middle of both sides are fixedly connected to the fixing blocks (51). The driving rod (56) is slidably connected to the fixing blocks (51). The bottom of the fixing blocks (51) is slidably connected to the pin (52). The bottom of the driving rod (56) is provided with the insertion hole (53). The pin (52) is engaged with the insertion hole (53). The lower outer side of the pin (52) is fixedly connected to the connecting piece (54). The outer side of the pin (52) is sleeved with a spring (55). The two ends of the spring (55) are fixedly connected to the connecting piece (54) and the fixing block (51) respectively. The outer side of the sliding rod (57) is slidably connected to the sleeve (58). The sleeve (58) is rotatably connected to the driving rod (56).

3. A protective railing for classroom safety management according to claim 2, characterized in that: The guardrail support (4) has a sliding groove (511) and a pressure groove (513) on the side near the side plate (59). The pressure rod (510) is slidably connected to the sliding groove (511). A second spring (512) is fixedly connected to one side of the inner wall of the sliding groove (511). The second spring (512) is fixedly connected to the pressure rod (510). The pressure plate (514) is slidably connected to the pressure groove (513).

4. A protective railing for classroom safety management according to claim 3, characterized in that: A rotating shaft (7) is fixedly connected to the lower outer side of the guardrail support (4). The rotating shaft (7) is rotatably connected to the guardrail body (1). A lower plate (516) is symmetrically fixedly connected to the bottom of the guardrail body (1). There are at least two lower plates (516). A moving rod (517) is slidably connected inside the lower plate (516). A push block (518) is fixedly connected to one end of the moving rod (517).

5. A protective railing for classroom safety management according to claim 4, characterized in that: The other end of the movable rod (517) is fixedly connected to a movable plate (519). A spring three (520) is sleeved on the outside of the movable rod (517). The two ends of the spring three (520) are fixedly connected to the lower plate (516) and the movable plate (519) respectively. A strip groove (521) is symmetrically opened at the bottom of the guardrail body (1). An inner rod (522) is fixedly connected inside the strip groove (521).

6. A protective railing for classroom safety management according to claim 5, characterized in that: The inner rod (522) is slidably connected to a movable block (524), and a trapezoidal block (523) is fixedly connected to the bottom of the movable block (524). The push rod (515) abuts against the inclined surface of the trapezoidal block (523), and the push block (518) abuts against the trapezoidal block (523). The number of movable blocks (524) is the same as that of the lower plate (516), and the movable block (524) is fixedly connected to the pressure strip (525).

7. A protective railing for classroom safety management according to claim 1, characterized in that: The adjustment component (6) includes a top groove (61) opened on the top of the guardrail body (1), an inner block (62) is slidably connected inside the top groove (61), a tightening bolt (63) is threadedly connected to the top of the inner block (62), an adjustment rod (64) is fixedly connected to the bottom of the inner block (62), a limit groove (65) is opened on the outer side of the adjustment rod (64), and a support unit is provided between two adjacent limit grooves (65).

8. A protective railing for classroom safety management according to claim 7, characterized in that: The support unit includes an upper limit block (66), a mounting block (67), a diagonal rod (68), an auxiliary block (69), a lower limit block (610), and a central disk (611). The outer sides of the central disk (611) are rotatably connected to two diagonal rods (68), the top of the diagonal rods (68) is rotatably connected to the mounting block (67), and one side of the mounting block (67) is fixedly connected to the upper limit block (66).

9. A protective railing for classroom safety management according to claim 8, characterized in that: The bottom end of the inclined rod (68) is rotatably connected to the auxiliary block (69), one side of the auxiliary block (69) is fixedly connected to the lower limit block (610), the upper limit block (66) is slidably connected to the limit groove (65) on one side, and the lower limit block (610) is slidably connected to the limit groove (65) on the other side.

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