A safety guard for an excavator

Abstract

The application provides a safety protection device for an excavator, and belongs to the technical field of excavator protection. The safety protection device for the excavator comprises a protection structure and a lifting structure. The protection structure comprises a first protection plate, a second protection plate, a buffer assembly, a top plate, a mounting frame, a grating and a clamping assembly. The first protection plate and the second protection plate are provided with the buffer assembly on one side. The top plate is connected with the buffer assembly. The mounting frame is arranged in the first protection plate. The grating is arranged in the mounting frame. The clamping assembly is arranged in the first protection plate. The clamping assembly is clamped with the mounting frame. In the application, the safety protection device for the excavator is convenient for protecting the cab glass window, improves the safety, and is convenient for protecting both sides of the excavator cab, and improves the safety protection effect.

Description

Technical Field

[0001] This application relates to the field of excavator protection, and more specifically, to an excavator safety protection device. Background Technology

[0002] An excavator, also known as a digger, is an earthmoving machine that uses a bucket to excavate materials above or below the machine's bearing surface and load them into transport vehicles or unload them into a stockpile. Hydraulic excavators are one of the important pieces of machinery in modern engineering construction, widely used in bridges, roads, building construction, water conservancy, ports, forestry, and other fields. The use of excavators has greatly reduced manual labor and, while ensuring construction quality, significantly shortened earthmoving construction time and improved work efficiency. However, due to the influence of the working environment, when excavators are working in complex, harsh, or even dangerous environments, especially when there is a risk of falling objects from heights, the operator's safety cannot be effectively guaranteed due to the limitations of the excavator cab's protective conditions. Therefore, a safety protection device for the excavator cab is needed to enhance the protection of the operator's personal safety.

[0003] Existing excavator safety devices are inadequate for protecting the operator; and they also fail to provide shock absorption during operation.

[0004] Chinese patent application CN202322917345.0 discloses a safety protection device for an excavator, including an excavator body. A moving device is fixedly installed on the lower surface of the excavator body, and a protective device is fixedly installed on the upper surface of the excavator body. The protective device includes a screw, the outer wall of which is threaded into the inner cavity of the excavator body. This invention uses the screw to fix a support plate to the upper surface of the excavator body. A spring and a telescopic rod provide a buffer space between the top plate and the support plate. A reinforcing plate increases the device's strength, thus protecting the driver from falling objects. A sealing ring prevents corrosion of the parts between the support plate and the top plate, increasing their service life and ultimately ensuring the driver's safety.

[0005] The above-mentioned solution has the following shortcomings: When in use, the glass windows inside the protective device are exposed, making it difficult to protect against falling objects, thus reducing safety and the practicality of the device. At the same time, the sides of the driver's cab are not easily protected, thus reducing the effectiveness of the protection. Utility Model Content

[0006] To overcome the above shortcomings, this application provides a safety protection device for excavators, which aims to improve the problem that when in use, the glass window inside the protection device is exposed to the outside, making it difficult to protect against falling objects, thus reducing safety and the practicality of the device. At the same time, the sides of the cab are not easily protected, thus reducing the effectiveness of the protection.

[0007] This application provides a safety protection device for an excavator, including a protective structure and a lifting structure. The protective structure includes a first protective plate, a second protective plate, a buffer assembly, a top plate, a mounting frame, a grille, and a snap-fit ​​assembly. The buffer assembly is provided on one side of both the first and second protective plates. The top plate is connected to the buffer assembly. The mounting frame is disposed within the first protective plate, and the grille is disposed within the mounting frame. The snap-fit ​​assembly is disposed within the first protective plate and snaps into the mounting frame. The lifting structure includes an electric push rod, a lifting plate, a connecting block, and an L-shaped protective plate. The electric push rod is installed on one side of the top plate. The lifting plate is connected to the movable end of the electric push rod. The connecting block is connected to the lifting plate and the L-shaped protective plate. The L-shaped protective plate is slidably connected to the top plate.

[0008] In one specific implementation, the buffer assembly includes a support base, a sliding plate, fixed posts, sliding posts, and a first spring. The support base is provided on one side of both the first protective plate and the second protective plate. The sliding plate is slidably connected to the support base and connected to the top plate. A plurality of fixed posts are evenly arranged inside the support base. The sliding posts are slidably connected to the fixed posts and connected to the sliding plate. The first spring is sleeved on the fixed posts.

[0009] In the above implementation process, the arrangement of the support base, sliding plate, fixed column, sliding column and first spring provides a certain buffer between the top plate and the first and second protective plates, which can reduce shock when impacted and improve the protective effect.

[0010] In one specific implementation, the snap-fit ​​assembly includes a slide rod, a slider, and a second spring. The slide rod is slidably connected to the first protective plate, the slider is connected to the slide rod, the slider is slidably connected to the first protective plate, the slider is snap-fitted to the mounting frame, and the two ends of the second spring are respectively connected to the first protective plate and the slider.

[0011] In the above implementation process, the use of slide bars, sliders, and a second spring makes it easy to disassemble and replace the mounting frame and grille, thus improving work efficiency.

[0012] In one specific implementation, a pull block is provided at one end of the slide bar.

[0013] In the above implementation process, by setting a pull block at one end of the slide bar, the user can easily pull the slide bar, saving time and effort.

[0014] In one specific implementation, a rubber pad is provided on one side of the top plate, and the rubber pad is connected to the top plate by bolts.

[0015] In the above implementation process, the setting of rubber pads and bolts facilitates further cushioning and also makes it easy to disassemble and replace the rubber pads.

[0016] In one specific implementation, a stabilizing plate is provided on one side of the first protective plate.

[0017] In the above implementation process, by setting a stabilizing plate on one side of the first protective plate, the first protective plate can be made more stable, and the first protective plate can be prevented from tilting and collapsing when it is impacted.

[0018] In one specific implementation, a mounting block is provided on one side of both the first protective plate and the second protective plate, and the mounting block has a through mounting hole.

[0019] In the above implementation process, the installation blocks and mounting holes facilitate the fixing of the positions of the first and second protective plates.

[0020] Compared with the prior art, the beneficial effects of this application are as follows: the installation of the frame and grille facilitates the protection of the cab windows, improving safety; the electric push rod drives the lifting plate, connecting block and L-shaped protective plate to move, facilitating the protection of both sides of the excavator cab, improving the effectiveness of safety protection. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an excavator safety protection device provided in the embodiments of this application;

[0023] Figure 2 A side view of an excavator safety protection device provided for the embodiments of this application;

[0024] Figure 3 A schematic cross-sectional view of the buffer assembly provided in this application embodiment;

[0025] Figure 4 This is a cross-sectional structural diagram of the snap-fit ​​assembly provided in an embodiment of this application.

[0026] In the diagram: 10-protective structure; 110-first protective plate; 120-second protective plate; 130-buffer assembly; 131-support base; 132-slide plate; 133-fixed column; 134-sliding column; 135-first spring; 140-top plate; 150-mounting frame; 160-grid; 170-clamping assembly; 171-slide rod; 172-slider; 173-second spring; 180-rubber pad; 190-mounting block; 20-lifting structure; 210-electric push rod; 220-lifting plate; 230-connecting block; 240-L-shaped protective plate. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0028] Please see Figure 1 This application provides a safety protection device for an excavator, including a protective structure 10 and a lifting structure 20.

[0029] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The protective structure 10 includes a first protective plate 110, a second protective plate 120, a buffer assembly 130, a top plate 140, a mounting frame 150, a grille 160, and a snap-fit ​​assembly 170. The first protective plate 110 and the second protective plate 120 are each provided with a buffer assembly 130 on one side. The top plate 140 is connected to the buffer assembly 130. The mounting frame 150 is disposed inside the first protective plate 110. The grille 160 is disposed inside the mounting frame 150. The snap-fit ​​assembly 170 is disposed inside the first protective plate 110 and snaps into the mounting frame 150.

[0030] In a specific configuration, the buffer assembly 130 includes a support base 131, a sliding plate 132, a fixed column 133, a sliding column 134, and a first spring 135. Support bases 131 are provided on one side of both the first protective plate 110 and the second protective plate 120. The sliding plate 132 is slidably connected to the support base 131 and is connected to the top plate 140. Several fixed columns 133 are evenly arranged inside the support base 131. The sliding column 134 is slidably connected to the fixed columns 133 and is connected to the sliding plate 132. The first spring 135 is sleeved on the fixed columns 133. Through the arrangement of the support base 131, sliding plate 132, fixed column 133, sliding column 134, and first spring 135, a certain buffer is provided between the top plate 140 and the first protective plate 110 and the second protective plate 120, which can reduce shock when impacted, thus improving the protective effect.

[0031] In a specific configuration, the snap-fit ​​assembly 170 includes a slide rod 171, a slider 172, and a second spring 173. The slide rod 171 is slidably connected to the first protective plate 110, the slider 172 is connected to the slide rod 171, the slider 172 is slidably connected to the first protective plate 110, and the slider 172 is snap-fitted to the mounting frame 150. The two ends of the second spring 173 are respectively connected to the first protective plate 110 and the slider 172. The configuration of the slide rod 171, the slider 172, and the second spring 173 facilitates the disassembly and replacement of the mounting frame 150 and the grille 160, thereby improving work efficiency.

[0032] In the specific design, a pull block is provided at one end of the slide bar 171. By providing a pull block at one end of the slide bar 171, the user can easily pull the slide bar 171, saving time and effort.

[0033] In the specific setup, a rubber pad 180 is provided on one side of the top plate 140. The rubber pad 180 is connected to the top plate 140 by bolts. The setting of the rubber pad 180 and bolts facilitates further cushioning and also makes it easy to disassemble and replace the rubber pad 180.

[0034] In the specific installation, a stabilizing plate is provided on one side of the first protective plate 110. By providing a stabilizing plate on one side of the first protective plate 110, the first protective plate 110 can be made more stable, and the first protective plate 110 can be prevented from tilting and collapsing when it is impacted.

[0035] In the specific configuration, a mounting block 190 is provided on one side of the first protective plate 110 and the second protective plate 120. The mounting block 190 has a through mounting hole. The mounting block 190 and the mounting hole facilitate the fixing of the position of the first protective plate 110 and the second protective plate 120.

[0036] Please see Figure 1 , Figure 2 and Figure 3The lifting structure 20 includes an electric push rod 210, a lifting plate 220, a connecting block 230, and an L-shaped protective plate 240. The electric push rod 210 is installed on one side of the top plate 140. The lifting plate 220 is connected to the movable end of the electric push rod 210. The connecting block 230 is connected to the lifting plate 220 and the L-shaped protective plate 240. The L-shaped protective plate 240 is slidably connected to the top plate 140.

[0037] The working principle of this excavator safety protection device is as follows: When using the excavator safety protection device, the installation frame 150 and the grille 160 facilitate the protection of the cab windows, improving safety. By pulling the slide rod 171, the slider 172 moves and compresses the second spring 173, causing the slider 172 to disengage from the installation frame 150, facilitating the disassembly and replacement of the installation frame 150 and the grille 160, thus improving work efficiency. After closing the door panels on both sides of the excavator cab, the electric push rod 210 is activated to lower the lifting plate 220, the connecting block 230, and the L-shaped protective plate 240, facilitating the protection of both sides of the excavator cab during use, thus improving the safety protection effect.

[0038] It should be noted that the specific model and specifications of the electric actuator 210 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0039] The power supply and principle of the electric actuator 210 are clear to those skilled in the art and will not be described in detail here.

[0040] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A safety shield for an excavator, characterised in that, include The protective structure (10) includes a first protective plate (110), a second protective plate (120), a buffer assembly (130), a top plate (140), a mounting frame (150), a grille (160), and a snap-fit ​​assembly (170). The buffer assembly (130) is provided on one side of both the first protective plate (110) and the second protective plate (120). The top plate (140) is connected to the buffer assembly (130). The mounting frame (150) is located inside the first protective plate (110). The grille (160) is located inside the mounting frame (150). The snap-fit ​​assembly (170) is located inside the first protective plate (110) and snaps into the mounting frame (150). The lifting structure (20) includes an electric push rod (210), a lifting plate (220), a connecting block (230), and an L-shaped protective plate (240). The electric push rod (210) is installed on one side of the top plate (140). The lifting plate (220) is connected to the movable end of the electric push rod (210). The connecting block (230) is connected to the lifting plate (220) and the L-shaped protective plate (240). The L-shaped protective plate (240) is slidably connected to the top plate (140).

2. A safety shield for an excavator as claimed in claim 1, wherein, The buffer assembly (130) includes a support base (131), a sliding plate (132), a fixed column (133), a sliding column (134), and a first spring (135). The support base (131) is provided on one side of the first protective plate (110) and the second protective plate (120). The sliding plate (132) is slidably connected to the support base (131) and connected to the top plate (140). A plurality of fixed columns (133) are evenly arranged inside the support base (131). The sliding column (134) is slidably connected to the fixed column (133) and connected to the sliding plate (132). The first spring (135) is sleeved on the fixed column (133).

3. A safety shield for an excavator as claimed in claim 1, wherein, The snap-fit ​​assembly (170) includes a slide rod (171), a slider (172), and a second spring (173). The slide rod (171) is slidably connected to the first protective plate (110), the slider (172) is connected to the slide rod (171), the slider (172) is slidably connected to the first protective plate (110), the slider (172) is snap-fitted to the mounting frame (150), and the two ends of the second spring (173) are respectively connected to the first protective plate (110) and the slider (172).

4. A safety shield for an excavator as claimed in claim 3, wherein, A pull block is provided at one end of the slide bar (171).

5. The safety shield for excavators of claim 1, wherein, A rubber pad (180) is provided on one side of the top plate (140), and the rubber pad (180) is connected to the top plate (140) by bolts.

6. A safety shield for an excavator as claimed in claim 1, wherein, A stabilizing plate is provided on one side of the first protective plate (110).

7. The safety shield for excavators of claim 1, wherein, The first guard plate (110) and the second guard plate (120) are provided with mounting blocks (190) on one side, and the mounting blocks (190) are provided with mounting holes.

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