Guniting machine operator handle limiter

Abstract

The utility model relates to engineering machinery safety device technical field especially sprays machine operating handle stop device, including operating platform, the surface of operating platform is provided with a plurality of recess, the inside of each group recess all is provided with a group handle, the upper end of operating platform is provided with two groups of mounting frame symmetrically, the side wall of each group mounting frame all is provided with a plurality of corresponding sliding slot with recess, the inside of each group sliding slot all is slidably connected with a group of limit block, limit block one end rotatably connected with adjusting screw rod, adjusting screw rod penetrates mounting frame and is connected with its screw thread, the utility model is through two groups of symmetrically arranged mounting frame and constitutes the main body structure of stop device, and the limit block that its inside is provided with can be respectively limited to handle swing before and after two ends respectively, through the rotation adjusting screw rod, can drive limit block and slide stably in the sliding slot, further realizes the accurate adjustment to handle swing path, to adapt to the operation demand under the different working condition of scene, and the flexibility is higher.

Description

Technical Field

[0001] This utility model relates to the field of safety devices for engineering machinery, and in particular to a limit device for the operating handle of a shotcrete machine. Background Technology

[0002] Wet concrete spraying machines, also known as shotcrete machines, are key equipment used for roadway support in mining, tunneling and other engineering projects. The start, stop and flow rate of the shotcrete operation are controlled by the handle. The flexibility and reliability of the handle are directly related to construction efficiency and personnel safety.

[0003] Shotcrete machine operating handles generally lack effective mechanical limit devices. During operation, operators may misoperate the handle due to factors such as distraction or accidental contact, resulting in unauthorized start-stop or abnormal flow fluctuations of the shotcrete machine. This not only reduces the continuous efficiency of shotcrete operations but may also cause mechanical injury or splash injury to personnel working at close range, creating a safety hazard.

[0004] Therefore, to address the aforementioned issues, a shotcrete machine operating handle limit device can be designed. This modular design is installed around the handle of the shotcrete machine control panel, enabling independent and precise limit control of multiple sets of operating handles on the control panel. It also supports dynamic adjustment of the swing range of each handle according to actual working conditions. While ensuring high flexibility, it eliminates the risk of misoperation from the source, effectively improving the safety management level and construction efficiency stability of shotcrete operations. Utility Model Content

[0005] To overcome the problem that traditional shotcrete machine operating handles may be misoperated by operators due to factors such as distraction or accidental touch during operation, leading to unauthorized start-stop or abnormal flow fluctuations in the shotcrete machine, which not only reduces the continuous efficiency of shotcrete operations, but may also cause mechanical injury or splash injury to personnel working at close range, creating a safety hazard.

[0006] The technical solution of this utility model is as follows: a shotcrete machine operating handle limiting device, including an operating table, the surface of which is provided with a number of grooves, and a handle is provided inside each set of grooves. It also includes two sets of mounting frames symmetrically arranged on the upper part of the operating table. The side wall of each set of mounting frames is provided with a number of sliding grooves corresponding to the grooves. A set of limiting blocks is slidably connected inside each set of sliding grooves. One end of the limiting block is rotatably connected to an adjusting screw, which passes through the mounting frame and is threadedly connected to it.

[0007] Preferably, the main structure of the limiting device is formed by two sets of symmetrically arranged mounting frames, which can limit the front and rear ends of the handle swing respectively. The sliding groove corresponding to the side wall of the mounting frame and the groove can provide the necessary space for the handle swing. The limiting block slidably set inside the sliding groove can effectively limit the swing range of the handle, thereby effectively preventing the handle from swinging excessively due to operator error. By rotating the adjusting screw, the limiting block can be driven to slide stably inside the sliding groove, thereby achieving precise adjustment of the handle swing path to adapt to the operating requirements under different working conditions on site.

[0008] Preferably, the side of the limiting block closest to the handle has an arc-shaped structure, and the surface of the arc-shaped structure is provided with a cushioning pad.

[0009] Preferably, an assembly plate is fixedly installed on the periphery of the mounting frame, and the surface of the assembly plate has through mounting holes.

[0010] Preferably, a positioning rod is fixedly installed on one side of one set of mounting frames, and a positioning hole matching the positioning rod is opened on the corresponding side of another set of mounting frames.

[0011] Preferably, a protective plate is fixedly installed on one side of the mounting frame. The protective plate is located at the upper end of the adjusting screw. The protective plate is made of highly transparent plastic, and its surface has several sets of scale lines corresponding to the adjusting screw.

[0012] Preferably, a dust cover is provided at the top of the mounting frame. The dust cover is connected and fixed to the two sets of mounting frames by steel nails, and all handles pass through the dust cover.

[0013] The beneficial effects of this utility model are: The main structure of the limiting device consists of two sets of symmetrically arranged mounting frames, which can limit the swing of the handle at both ends separately. The sliding grooves corresponding to the side walls of the mounting frames provide the necessary space for the handle to swing. The limiting blocks that slide inside the sliding grooves can effectively limit the swing range of the handle, thereby preventing excessive swing of the handle due to operator error. By rotating the adjusting screw, the limiting blocks can be driven to slide stably inside the sliding grooves, thereby achieving precise adjustment of the handle swing path to adapt to the operational needs under different working conditions on site. This significantly improves the flexibility of equipment use, thereby eliminating the risk of misoperation at the source, effectively strengthening the safety control capability of shotcrete operations, and ensuring the continuous and stable output of construction efficiency, achieving a dual improvement in safety and efficiency. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of the shotcrete machine operating handle limiting device of this utility model. Figure 2The diagram shown is a three-dimensional structural schematic of a set of mounting frames for the shotcrete machine operator handle limiting device of this utility model, in the disassembled state. Figure 3 The diagram shown is a bottom view of the mounting frame of the shotcrete machine operator handle limiting device of this utility model. Figure 4 The diagram shown is a three-dimensional structural schematic of the limiting block of the shotcrete machine operator handle limiting device of this utility model. Explanation of reference numerals in the attached drawings: 1. Operating table; 101. Groove; 2. Handle; 3. Mounting frame; 301. Slide groove; 302. Assembly plate; 303. Mounting hole; 304. Positioning rod; 305. Positioning hole; 4. Limit block; 401. Adjusting screw; 402. Buffer pad; 5. Protective plate; 501. Scale line; 6. Dustproof cloth cover. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please see Figure 2 and Figure 3 This utility model provides an embodiment of a shotcrete machine operating handle limiting device, including an operating platform 1. The surface of the operating platform 1 has several grooves 101, and each groove 101 contains a handle 2. It also includes two sets of mounting frames 3 symmetrically arranged on the upper end of the operating platform 1. Each set of mounting frames 3 has several sliding grooves 301 corresponding to the grooves 101 on its sidewall. Each sliding groove 301 has a set of limiting blocks 4 slidably connected inside it. One end of each limiting block 4 is rotatably connected to an adjusting screw 401, which passes through the mounting frame 3 and is threadedly connected to it. The device utilizes two symmetrically arranged mounting frames... The frame 3 constitutes the main structure of the limiting device, which can limit the swing of the handle 2 at both ends. The slide groove 301 corresponding to the groove 101 on the side wall of the mounting frame 3 can provide the necessary space for the swing of the handle 2. The limiting block 4 slidably set inside the slide groove 301 can effectively limit the swing range of the handle 2, thereby effectively preventing the handle 2 from swinging excessively due to operator error. By rotating the adjusting screw 401, the limiting block 4 can be driven to slide stably inside the slide groove 301, thereby achieving precise adjustment of the swing path of the handle 2 to adapt to the operating requirements under different working conditions on site.

[0017] Please see Figure 2 , Figure 3 and Figure 4In this embodiment, the side of the limiting block 4 near the handle 2 has an arc-shaped structure, and a buffer pad 402 is provided on the surface of the arc-shaped structure. The arc-shaped structure matches the outer contour of the handle 2, and the buffer pad 402 can effectively absorb the impact energy when operating the handle 2 and reduce collision noise. An assembly plate 302 is fixedly installed on the periphery of the mounting frame 3, and a through mounting hole 303 is opened on the surface of the assembly plate 302. The mounting frame 3 can be detachably assembled on the upper end of the operating table 1 by using fasteners in conjunction with the mounting hole 303 through the assembly plate 302, which facilitates the maintenance of the device. A positioning rod 304 is fixedly installed on one side of one set of mounting frames 3, and a positioning hole 305 matching the positioning rod 304 is opened on the corresponding side of the other set of mounting frames 3. Through the precise insertion and cooperation of the positioning rod 304 and the positioning hole 305, the precise alignment and splicing between the two sets of mounting frames 3 is achieved, forming the main structure of the limiting device.

[0018] Please see Figure 1 In this embodiment, a protective plate 5 is fixedly installed on one side of the mounting frame 3. The protective plate 5 is located at the upper end of the adjusting screw 401. The protective plate 5 is made of highly transparent plastic, and its surface is provided with several sets of scale lines 501 corresponding to the adjusting screw 401. The protective plate 5 can shield and protect the lower adjusting screw 401. The transparent material of the protective plate 5 allows the operator to observe the position of the adjusting screw 401 in real time. Combined with the scale lines 501 on the surface of the protective plate 5, it can provide a precise quantitative reference for the adjustment operation. A dust cover 6 is provided at the upper end of the mounting frame 3. The dust cover 6 is connected and fixed to the two sets of mounting frames 3 by steel nails. All handles 2 pass through the dust cover 6. Through the flexibility of the dust cover 6 itself, without affecting the normal swing of the handles 2, it effectively blocks external dust and droplets from entering the groove 101, protecting its internal mechanism from contamination and damage.

[0019] During operation, the two sets of mounting frames 3 are spliced ​​together by the cooperation of the positioning rod 304 and the positioning hole 305. Then, by using fasteners to pass through the mounting hole 303 and cooperate with the assembly plate 302, the mounting frame 3 can be detachably connected on the operating table 1, which is convenient for maintenance, thus forming the main structure of the limit device. The slide groove 301 on the side wall of each mounting frame 3 can provide the necessary space for the handle 2 to move. The limiting block 4 that is slidably set inside the slide groove 301 can effectively limit the swing range of the handle 2 and effectively prevent the handle 2 from swinging excessively due to operator error. Based on the actual working conditions on site, the limit block 4 can be driven to slide stably inside the slide groove 301 by rotating the adjusting screw 401, and the position of the slider can be determined by the scale line 501, thereby achieving precise adjustment of the swing path of the handle 2 to adapt to the operating requirements under different working conditions on site.

[0020] Through the above steps, the main structure of the limiting device is formed by two sets of symmetrically arranged installation frames 3. The limiting blocks 4 set inside can limit the swing of the handle 2 at both ends. By rotating the adjusting screw 401, the limiting blocks 4 can be driven to slide stably inside the slide groove 301, thereby achieving precise adjustment of the swing path of the handle 2 to adapt to the operational needs under different working conditions on site, and with greater flexibility. This solves the problem that during the operation of the traditional shotcrete machine, the operator may misoperate the handle 2 due to factors such as distraction or accidental touch, resulting in uncommanded start-stop or abnormal flow fluctuation of the shotcrete machine. This not only reduces the continuous efficiency of shotcrete operation, but may also cause mechanical injury or splash injury to personnel working at close range, creating a safety hazard.

[0021] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A shotcrete machine operating handle limiting device, comprising an operating table (1), wherein the surface of the operating table (1) is provided with a plurality of grooves (101), and each set of grooves (101) is provided with a set of handles (2), characterized in that: It also includes two sets of mounting frames (3) symmetrically arranged on the upper end of the operating table (1). Each set of mounting frames (3) has several sliding grooves (301) corresponding to the grooves (101) on its side wall. Each set of sliding grooves (301) has a set of limiting blocks (4) slidably connected inside. One end of the limiting block (4) is rotatably connected to an adjusting screw (401). The adjusting screw (401) passes through the mounting frame (3) and is threadedly connected to it.

2. The shotcrete machine operating handle limiting device according to claim 1, characterized in that: The side of the limiting block (4) near the handle (2) has an arc surface structure, and a buffer pad (402) is provided on the surface of the arc surface structure.

3. The shotcrete machine operating handle limiting device according to claim 1, characterized in that: An assembly plate (302) is fixedly installed on the periphery of the mounting frame (3), and a through mounting hole (303) is provided on the surface of the assembly plate (302).

4. The shotcrete machine operating handle limiting device according to claim 1, characterized in that: A positioning rod (304) is fixedly installed on one side of a set of mounting frames (3), and a positioning hole (305) matching the positioning rod (304) is opened on the corresponding side of another set of mounting frames (3).

5. The shotcrete machine operating handle limiting device according to claim 1, characterized in that: A protective plate (5) is fixedly installed on one side of the mounting frame (3). The protective plate (5) is located at the upper end of the adjusting screw (401). The protective plate (5) is made of highly transparent plastic material. The surface of the protective plate (5) is provided with several sets of scale lines (501) corresponding to the adjusting screw (401).

6. The shotcrete machine operating handle limiting device according to claim 1, characterized in that: The upper end of the mounting frame (3) is provided with a dust cover (6), which is connected and fixed to the two sets of mounting frames (3) by steel nails. All handles (2) pass through the dust cover (6).

Images