A safety guard

Abstract

The utility model relates to the technical field of safety protection, disclose a kind of safety protection device, including protection frame and fixedly connected to the supporting leg of protection frame bottom, the guide slot is opened in the inside of protection frame, the guide block is slidably connected in the inside of guide slot, the side wall of protection frame is fixedly connected splicing assembly, the splicing assembly includes support block and shell, the side wall of support block is rotatably connected handle, the side wall of handle is rotatably connected connecting plate, the one end of connecting plate away from handle is fixedly connected in the side wall of insertion rod, insertion rod is slidably penetrated shell, spring is fixedly connected between the side wall of insertion rod and the inside of shell, by rotating handle connecting plate is deflected and insertion rod is slid into the insertion hole of guide block and is compressed spring is locked.The utility model sets up splicing assembly and stretching component, solve the problem that the existing guardrail splicing structure is complex, dismounting efficiency is low and length is not adjustable, reach quick dismounting, connecting firm and strong adaptability's technical effect.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology, specifically to a safety protection device. Background Technology

[0002] Safety barriers are essential facilities in construction sites, road maintenance, and temporary isolation areas, used to isolate hazardous areas, guide pedestrian flow, or protect the safety of the construction site. Traditional safety barriers are usually assembled from multiple independent guardrails using connectors.

[0003] However, existing protective devices mostly rely on bolt fastening, clip binding, or simple hook connections for assembly. These methods have significant drawbacks: firstly, bolt fastening requires specialized tools like wrenches, making the process cumbersome, and long-term outdoor use can lead to rust and disassembly difficulties, greatly reducing assembly and disassembly efficiency on construction sites; secondly, while simple hook connections are convenient, they lack stability and are easily loosened by external impacts, posing safety hazards. Furthermore, most existing guardrails use fixed-size frame structures, making length adjustment impossible to accommodate the specific width of the construction site. This often results in gaps or installation difficulties when encountering irregular terrain or gaps of specific dimensions.

[0004] Therefore, this utility model proposes a safety protection device to overcome the shortcomings of the prior art. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a safety protection device, which aims to improve the defects of existing safety protection devices, such as complex splicing structure, low efficiency of on-site assembly and disassembly, insufficient connection stability, and inability to flexibly adjust the length to adapt to different construction scenarios.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a safety protection device, comprising: a protective frame and a support leg fixedly connected to the bottom of the protective frame; a guide groove is formed inside the protective frame; a guide block is slidably connected inside the guide groove; and a splicing assembly is fixedly connected to the side wall of the protective frame; the splicing assembly includes a support block and a housing fixedly connected to the side wall of the protective frame; a handle is rotatably connected to the side wall of the support block; a connecting plate is rotatably connected to the side wall of the handle; one end of the connecting plate away from the handle is fixedly connected to the side wall of a plug rod; the plug rod slidably passes through the housing; a spring is fixedly connected between the side wall of the plug rod and the inside of the housing; and an insertion hole is formed in the guide block. The splicing assembly is designed using the linkage mechanism principle. The rotating handle can drive the connecting plate to deflect and push the plug rod into the plug hole and compress the spring. Furthermore, the protective frame is initially positioned by the sliding engagement of the guide groove and the guide block, and the splicing assembly is mechanically locked by inserting the plug rod into the insertion hole of the guide block. The support block, the handle, the connecting plate and the plug rod are connected by a combination of rotational and fixed connections, which realizes the motion conversion between the operating end and the execution end, thereby completing the rapid splicing of the protective frame. Preferably, the protective frame is further fixedly connected to a tension assembly, which is connected to a telescopic rod. The tension assembly is located on one side of the protective frame and is used to change the overall coverage area of ​​the device by adjusting the extension length of the telescopic rod. Preferably, the tensioning assembly includes a fixed rod fixedly connected to the side wall of the protective frame, an extension rod slidably connected inside the fixed rod, a telescopic rod fixedly connected to the end of the extension rod away from the fixed rod, several reserved holes being opened on the surfaces of the fixed rod and the extension rod, a V-shaped plate being fixedly connected to the inner wall of the extension rod, and a limiting block being fixedly connected to the side wall of the V-shaped plate. Preferably, the deformation of the V-shaped plate under force can cause the limiting block to retract into the reserved hole of the fixing rod and the extension rod. When the V-shaped plate is reset, the limiting block can extend out of the reserved hole for locking. This structure realizes the function of graded adjustment. Preferably, the cross-sectional shape of the guide groove is adapted to the cross-sectional shape of the guide block, and both are T-shaped or dovetail-shaped. This shape matching increases the pull-out resistance and stability of the connection structure. Preferably, one end of the connecting plate is rotatably connected to the side wall of the handle, and the other end is fixedly connected to the side wall of the insertion rod. The connecting plate deflects synchronously with the handle, ensuring the continuity of force transmission. Preferably, the outer shell is a hollow structure, the spring is located inside the outer shell, one end of the spring is fixedly connected to the side wall of the insertion rod, and the other end is fixedly connected to the inner wall of the outer shell, so that the outer shell can protect and limit the spring.

[0007] This utility model has the following beneficial effects: 1. This utility model, by setting up a splicing assembly consisting of a handle, a connecting plate, a plug rod, and a spring, utilizes the linkage transmission principle to convert the rotational motion of the handle into the linear motion of the plug rod. Combined with the elastic effect of the spring, it solves the problems of the existing safety guardrail splicing process being cumbersome, requiring additional tools, and having unstable connections. It achieves the technical effect of quickly realizing mechanical locking between guardrails, improving on-site assembly efficiency, and ensuring a stable and reliable connection structure.

[0008] 2. This utility model, by setting up a tension assembly consisting of a fixed rod, an extension rod, a V-shaped plate and a limiting block, utilizes the elastic deformation of the V-shaped plate to achieve the telescopic positioning of the limiting block within the reserved hole, solving the problem that the existing protective device has a fixed length and cannot adapt to the needs of construction sites of different sizes. It achieves the technical effect of being able to flexibly adjust the protective length according to the actual working conditions and enhance the adaptability of the device to different scenarios.

[0009] 3. This utility model, by adopting a T-shaped or dovetail-shaped guide groove and guide block matching structure, uses the geometric constraints of the cross-sectional shape to restrict the degree of freedom of the guide block in the direction perpendicular to the sliding direction, which solves the problem of easy shaking or derailment at the splicing of the protective frame, and achieves the technical effect of improving the overall rigidity and stability of the splicing connection. Attached Figure Description

[0010] Figure 1 This is a perspective view of a safety protection device proposed in this utility model; Figure 2 This is a schematic diagram of the splicing components of a safety protection device proposed in this utility model; Figure 3 This is a schematic diagram of the tension component of a safety protection device proposed in this utility model; Figure 4 for Figure 2 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0011] Legend: 1. Protective frame; 2. Support legs; 3. Guide groove; 4. Guide block; 5. Splicing assembly; 501. Handle; 502. Support block; 503. Connecting plate; 504. Insert rod; 505. Housing; 506. Spring; 507. Insertion hole; 6. Tension assembly; 601. Fixing rod; 602. Extension rod; 603. Reserved hole; 604. Limiting block; 605. V-shaped plate; 7. Telescopic rod. Detailed Implementation

[0012] 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.

[0013] Reference Figures 1-5The present invention provides an embodiment of a safety protection device, including a protective frame 1 and a support leg 2 fixedly connected to the bottom of the protective frame 1. The protective frame 1 serves as the main structure for isolating the construction area or dangerous area, and the support leg 2 is used to support the protective frame 1 and place it stably on the designated ground position. The bottom of the support leg 2 is provided with an anti-slip structure to enhance the grip and prevent the device from being accidentally displaced. The protective frame 1 has a guide groove 3 extending horizontally inside. A guide block 4 that matches the cross-sectional shape of the guide groove 3 is slidably connected inside the guide groove 3. The guide groove 3 and the guide block 4 cooperate to form a sliding guide mechanism, which allows adjacent safety protection devices to be initially positioned and spliced ​​by sliding the guide block 4 into the guide groove 3. The outer wall of the guide block 4 and the inner wall of the guide groove 3 are fitted with a clearance to ensure smooth sliding while restricting the degree of freedom of the guide block 4 in the direction perpendicular to the sliding direction, thereby improving the overall rigidity after splicing. It also includes a splicing component 5, which is fixedly connected to the side wall of the protective frame 1 and is used to quickly lock the guide block 4 that slides into the guide groove 3. The splicing component 5 includes a support block 502 fixedly connected to the side wall of the protective frame 1 and a hollow shell 505. The side wall of the support block 502 is rotatably connected to the handle 501 via a rotating shaft. The handle 501 can be deflected around the rotating shaft. The side wall of the handle 501 is rotatably connected to the connecting plate 503. The end of the connecting plate 503 away from the handle 501 is fixedly connected to the side wall of the insertion rod 504, thus forming a crank-slider type linkage transmission mechanism, which converts the rotational motion of the handle 501 into the linear motion of the insertion rod 504. The insertion rod 504 slides through the outer shell 505 and extends to the outside of the outer shell 505. A spring 506 is fixedly connected between the side wall of the insertion rod 504 and the inside of the outer shell 505. The spring 506 is sleeved on the outer periphery of the insertion rod 504, and the two ends of the spring 506 abut against the protruding structure on the side wall of the insertion rod 504 and the inner wall of the outer shell 505, respectively, to provide elastic restoring force or locking force. Meanwhile, the guide block 4 has a socket 507 on its surface that corresponds to the position and diameter of the plug rod 504. In the assembled state, rotating the handle 501 causes the connecting plate 503 to deflect, thereby pushing the plug rod 504 to slide out of the housing 505 in a straight line and into the socket 507 of the guide block 4. As it slides in, the spring 506 is compressed and generates elastic force. The plug-in cooperation between the plug rod 504 and the socket 507 achieves mechanical locking between the protective frame 1 and the guide block 4, ensuring a stable splicing. In a preferred embodiment, in order to adapt to protection requirements of different lengths, a tension assembly 6 is also fixedly connected to the side wall of the protective frame 1. The tension assembly 6 is connected to a telescopic rod 7. The length of the telescopic rod 7 can be adjusted by the tension assembly 6. The tension assembly 6 includes a fixed rod 601 fixedly connected to the side wall of the protective frame 1. An extension rod 602 is slidably connected inside the fixed rod 601. The telescopic rod 7 is fixedly connected to the end of the extension rod 602 away from the fixed rod 601. The telescopic rod 7 extends in the horizontal direction and is used to connect adjacent protective frames 1. As a further preferred embodiment, in order to achieve graded positioning and rapid adjustment, a number of reserved holes 603 are opened on the surface of the fixed rod 601 and the extension rod 602, which are equally spaced along the axial direction. A V-shaped plate 605 is fixedly connected to the inner wall of the extension rod 602, and a limiting block 604 is fixedly connected to the side wall of the V-shaped plate 605. The V-shaped plate 605 is made of spring steel and has elastic restoring force. During adjustment, press the limiting block 604 to retract it into the reserved hole 603 of the fixed rod 601 and the extension rod 602. At the same time, the V-shaped plate 605 deforms under the force. At this time, pull the extension rod 602 to slide and adjust the length within the fixed rod 601. When adjusted to the appropriate position, the limiting block 604 automatically extends out of the corresponding reserved hole 603 under the action of the reset elastic force of the V-shaped plate 605 to lock. As another preferred embodiment, in order to improve the stability of the guide structure, the cross-sectional shape of the guide groove 3 is adapted to the cross-sectional shape of the guide block 4, and both are T-shaped or dovetail-shaped. This shape matching can effectively prevent the guide block 4 from detaching from the guide groove 3. As an optimized implementation of the handle operation, one end of the connecting plate 503 is rotatably connected to the side wall of the handle 501, and the other end is fixedly connected to the side wall of the plug rod 504. The connecting plate 503 deflects synchronously with the handle 501 to ensure direct and efficient force transmission.

[0014] Working principle: When using this equipment for installation, firstly, the support legs 2 fixedly connected to the bottom of the protective frame 1 are used to support the protective frame 1 and place it in the designated position. Then, the guide block 4 is aligned with the guide groove 3 opened inside the protective frame 1 and slid into the guide groove 3. When multiple sets of protective frames 1 are spliced ​​and locked, the handle 501 connected to the side wall of the support block 502 is turned by moving the handle 501, which in turn drives the connecting plate 503, which is connected to the side wall of the handle 501 at one end and fixed to the side wall of the plug rod 504 at the other end, to turn synchronously. The movement of the connecting plate 503 causes the insertion rod 504 to slide along a straight line and slide into the insertion hole 507 opened in the guide block 4. At the same time as the insertion rod 504 slides in, the spring 506, which is fixedly connected to the side wall of the insertion rod 504 at one end and fixedly connected to the inside of the outer shell 505 at the other end, is compressed by force, thereby completing the locking between the protective frame 1 and the guide block 4. When the length needs to be adjusted, the limiting block 604, which is fixedly connected to the side wall of the V-shaped plate 605, is pressed to retract the limiting block 604 into the reserved hole 603 opened in the fixing rod 601 and the extension rod 602. At the same time, the V-shaped plate 605, which is fixedly connected to the inner wall of the extension rod 602 at one end, is deformed by force. At this time, the extension rod 602 and the telescopic rod 7 fixedly connected are slid relative to the fixed rod 601. After adjusting to a suitable length, the limiting block 604 is aligned with the corresponding reserved hole 603. The elastic restoring force of the V-shaped plate 605 is used to drive the limiting block 604 to extend out of the reserved hole 603 and lock it.

Claims

1. A safety protection device, characterized in that, include: The protective frame (1) and the support leg (2) fixedly connected to the bottom of the protective frame (1) are provided. The guide groove (3) is opened inside the protective frame (1). The guide block (4) is slidably connected inside the guide groove (3). The splicing component (5) is fixedly connected to the side wall of the protective frame (1). The splicing component (5) includes a support block (502) and a shell (505) fixedly connected to the side wall of the protective frame (1). The support block (502) is rotatably connected to a handle (501). The handle (501) is rotatably connected to a connecting plate (503). One end of the connecting plate (503) away from the handle (501) is fixedly connected to the side wall of the insertion rod (504). The insertion rod (504) slides through the shell (505). A spring (506) is fixedly connected between the side wall of the insertion rod (504) and the inside of the shell (505). The guide block (4) has an insertion hole (507). Turning the handle (501) can cause the connecting plate (503) to deflect and push the plug (504) to slide into the socket (507) and compress the spring (506).

2. The safety protection device according to claim 1, characterized in that: The protective frame (1) is also fixedly connected to a tension assembly (6), which is connected to a telescopic rod (7). The length of the telescopic rod (7) can be adjusted by the tension assembly (6).

3. The safety protection device according to claim 2, characterized in that: The tensioning assembly (6) includes a fixed rod (601) fixedly connected to the side wall of the protective frame (1), an extension rod (602) slidably connected inside the fixed rod (601), and a telescopic rod (7) fixedly connected to the end of the extension rod (602) away from the fixed rod (601).

4. The safety protection device according to claim 3, characterized in that: Several pre-drilled holes (603) are opened on the surface of the fixed rod (601) and the extension rod (602). The inner wall of the extension rod (602) is fixedly connected to the V-shaped plate (605), and the side wall of the V-shaped plate (605) is fixedly connected to the limiting block (604).

5. The safety protection device according to claim 4, characterized in that: When the V-shaped plate (605) is subjected to force and deforms, the limiting block (604) can retract into the reserved hole (603) of the fixing rod (601) and the extension rod (602). When the V-shaped plate (605) is reset, the limiting block (604) can extend out of the reserved hole (603) to lock.

6. The safety protection device according to claim 1, characterized in that: The cross-sectional shape of the guide groove (3) is compatible with the cross-sectional shape of the guide block (4), and both are T-shaped or dovetail-shaped.

7. The safety protection device according to claim 1, characterized in that: One end of the connecting plate (503) is rotatably connected to the side wall of the handle (501), and the other end is fixedly connected to the side wall of the plug rod (504). The connecting plate (503) rotates synchronously with the handle (501).

8. The safety protection device according to claim 1, characterized in that: The outer shell (505) is a hollow structure, and the spring (506) is located inside the outer shell (505). One end of the spring (506) is fixedly connected to the side wall of the plug rod (504), and the other end is fixedly connected to the inner wall of the outer shell (505).

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