Safety protection device for coal preparation plant

Abstract

The utility model relates to the technical field of protection devices, in particular to a safety protection device for a coal preparation plant, which comprises an observation door, a protective fence, a sliding sleeve, a rotating shaft and a bin gate, the inner wall of the observation door is fixedly connected with two cross rods, the sliding sleeve is in sliding connection with the outer walls of the cross rods, and the outer wall of the sliding sleeve is fixedly connected with a toothed plate. Two supporting grooves are formed in the outer wall of the protective fence, the supporting grooves are connected with the outer wall of the cross rod in a clamped mode, extending grooves are formed in the inner walls of the supporting grooves, the ends of the sliding sleeves are slidably connected with the extending grooves, the rotating shaft is rotatably installed on the observation door, and a half gear is fixedly connected to the outer wall of the rotating shaft and engaged with the toothed plate. According to the device disclosed by the utility model, when the bin door is opened, the convex part of the sliding sleeve can be clamped into the groove of the inner wall of the extension groove, so that the protective fence is locked, the protective fence is prevented from being mistakenly operated or accidentally taken down when the bin door is opened, the safety is enhanced, and the protective fence can be prevented from being opened arbitrarily, safety accidents and economic loss can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protection device, more specifically, relate to a safety protection device for coal preparation plant. BACKGROUND

[0002] The safety protection device for coal preparation plant is a key component for ensuring the safety of workers and the normal operation of equipment in the coal preparation plant. In industrial production, the safe operation of various mechanical equipment is the key to ensuring production efficiency and personnel safety. During operation, regular or irregular inspection and maintenance are often required to ensure stable performance and prevent potential failures.

[0003] However, in actual operation, post personnel need to open the protective fence of the equipment for internal inspection on a regular basis. When the equipment is in operation, post personnel may open the protective fence without stopping the equipment, which may cause safety accidents and damage to the equipment, further leading to production interruption and economic losses. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a safety protection device for coal preparation plant, which solves the technical problem that in actual operation, post personnel need to open the protective fence of the equipment for internal inspection on a regular basis. When the equipment is in operation, post personnel may open the protective fence without stopping the equipment, which may cause safety accidents and damage to the equipment, further leading to production interruption and economic losses.

[0005] The technical scheme of the utility model is as follows: a safety protection device for coal preparation plant, comprising an observation door, a protective fence, a sliding sleeve, a shaft and a warehouse door, two horizontal rods are fixedly connected to the inner wall of the observation door, the sliding sleeve is slidingly connected to the outer wall of the horizontal rod, a tooth plate is fixedly connected to the outer wall of the sliding sleeve, two grooves are formed in the outer wall of the protective fence, the grooves are connected to the outer wall of the horizontal rod, extension grooves are formed in the inner wall of the grooves, the end of the sliding sleeve is slidingly connected to the extension grooves, the shaft is rotatably installed on the observation door, a half gear is fixedly connected to the outer wall of the shaft, the half gear is engaged with the tooth plate, and the warehouse door is fixedly installed on the shaft.

[0006] Preferably, two supporting blocks are fixedly connected to the outer wall of the observation door, and the two supporting blocks are rotatably connected to the shaft.

[0007] Preferably, a connecting sleeve is fixedly connected to the outer wall of the shaft, and the outer wall of the connecting sleeve is fixedly connected to the warehouse door.

[0008] Preferably, a sliding groove is formed in the outer wall of the observation door, and the tooth plate is slidingly connected to the inner wall of the sliding groove.

[0009] Preferably, a through hole is formed in the outer wall of the protective fence, and a plurality of supporting rods are fixedly connected to the inner wall of the through hole.

[0010] Preferably, the outer wall of the observation door is provided with a mounting groove, and a jog switch is fixedly connected to the mounting groove.

[0011] Preferably, an installation plate is fixedly connected to the inner wall of the installation groove, a stop rod is slidably connected to the inner wall of the installation plate, a spring is sleeved on the outer wall of the stop rod, and a rotatable ball is embedded at the top of the stop rod.

[0012] Preferably, one end of the spring is fixedly connected to the abutment rod, and the other end of the spring is fixedly connected to the mounting plate.

[0013] The beneficial effects of this utility model, achieved through the above technical solution, are as follows:

[0014] 1. When the door is opened, the protrusion of the sliding sleeve will engage with the groove in the inner wall of the extension slot, thereby locking the guardrail and preventing accidental removal of the guardrail when the door is open, thus enhancing safety. Adding a guardrail inside the observation door prevents personnel from accidentally putting their bodies into the equipment while inspecting it, which could lead to safety accidents and economic losses.

[0015] 2. After the guardrail is removed, its bottom is released from the pressure of the ball bearing, which in turn triggers the elastic force of the spring, causing the bottom of the stop bar to release from the pressure of the jog switch. This design realizes the automatic power-off function of the equipment. When the guardrail is removed, the equipment automatically stops running, avoiding safety hazards caused by misoperation or failure to close the guardrail.

[0016] 3. The guardrail is secured to the two crossbars via brackets, and since the brackets are oriented in the same direction, installation can be carried out from top to bottom, greatly simplifying the installation process. This design also makes the disassembly of the guardrail quick and easy. During the closing of the compartment door, when the sliding sleeve moves out of the extension slot, although the gap between the compartment door and the observation door is not large enough for maintenance personnel to enter, this design utilizes the gap, allowing maintenance personnel to lift the guardrail for installation and disassembly operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the crossbar of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the protective railing of this utility model;

[0020] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 5 This utility model Figure 2Enlarged view at B;

[0022] Figure 6 The structure diagram of the extension groove of the utility model.

[0023] In the figure: 1, observation door; 101, sliding groove; 102, mounting groove; 2, cross bar; 3, guardrail; 4, support rod; 5, bracket; 6, extension groove; 7, sliding sleeve; 8, toothed plate; 9, support block; 10, rotating shaft; 11, half gear; 12, connecting sleeve; 13, hatch; 14, jog switch; 15, mounting plate; 16, abutment rod; 17, spring; 18, ball bearing. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative positional relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0026] As Figures 1-6 shown, a safety protection device for a coal preparation plant, including observation door 1, guardrail 3, sliding sleeve 7, rotating shaft 10 and hatch 13, the inner wall of observation door 1 is fixedly connected with two cross bars 2, the outer wall of sliding sleeve 7 is slidably connected with cross bar 2, the outer wall of sliding sleeve 7 is fixedly connected with toothed plate 8, sliding groove 101 is formed in the outer wall of observation door 1, toothed plate 8 is slidably connected with the inner wall of sliding groove 101, two brackets 5 are formed in the outer wall of guardrail 3, bracket 5 is clamped with the outer wall of cross bar 2, extension groove 6 is formed in the inner wall of bracket 5, the end of sliding sleeve 7 is slidably connected with extension groove 6, guardrail 3 is clamped on two cross bars 2 through bracket 5, and since the opening direction of bracket 5 is the same, it only needs to be installed from top to bottom, which greatly simplifies the installation process, and this design makes the disassembly of guardrail 3 become simple and fast;

[0027] In the process of closing hatch 13, when sliding sleeve 7 moves out of extension groove 6, although the gap between hatch 13 and observation door 1 is not enough for maintenance personnel to enter, this design utilizes the gap, so that maintenance personnel can install and disassemble by lifting guardrail 3;

[0028] The rotating shaft 10 is rotatably installed on the observation door 1, and the outer wall of the rotating shaft 10 is fixedly connected with a half gear 11, the half gear 11 is engaged with the toothed plate 8, and the warehouse door 13 is fixedly installed on the rotating shaft 10; when the warehouse door 13 is opened, the convex part of the sliding sleeve 7 is clamped into the slot in the inner wall of the extension slot 6, thereby locking the protective fence 3, preventing misoperation or accidentally taking down the protective fence 3 when the warehouse door 13 is opened, and enhancing the safety, which can avoid unauthorized opening of the protective fence 3, causing safety accidents and economic losses.

[0029] The outer wall of the observation door 1 is also fixedly connected with two supporting blocks 9, and the two supporting blocks 9 are rotatably connected with the rotating shaft 10; the outer wall of the rotating shaft 10 is fixedly connected with a connecting sleeve 12, and the outer wall of the connecting sleeve 12 is fixedly connected with the warehouse door 13.

[0030] The outer wall of the protective fence 3 is provided with a through hole, and a plurality of supporting rods 4 are fixedly connected to the inner wall of the through hole; the gap between the supporting rods 4 can facilitate observation;

[0031] The outer wall of the observation door 1 is provided with a mounting groove 102, and the mounting groove 102 is fixedly connected with a jog switch 14; the inner wall of the mounting groove 102 is fixedly connected with a mounting plate 15, the inner wall of the mounting plate 15 is slidably connected with an abutting rod 16, the outer wall of the abutting rod 16 is sleeved with a spring 17, and the top of the abutting rod 16 is embedded with a rotatable ball 18; one end of the spring 17 is fixedly connected with the abutting rod 16, and the other end of the spring 17 is fixedly connected with the mounting plate 15;

[0032] After the protective fence 3 is disassembled, the bottom thereof is separated from the extrusion of the ball 18, thereby triggering the elastic force of the spring 17, so that the bottom of the abutting rod 16 is separated from the extrusion of the jog switch 14, which realizes the automatic power-off function of the equipment, and when the protective fence 3 is taken down, the equipment automatically stops running, avoiding the safety hazards caused by misoperation or failure to close the protective fence 3.

[0033] Working principle: when installing, the supporting groove 5 on the protective fence 3 is clamped on the two horizontal rods 2, since the opening directions of the two supporting grooves 5 are the same, it only needs to be installed from top to bottom, which can facilitate the disassembly of the protective fence 3;

[0034] When the warehouse door 13 is opened, the connecting sleeve 12 is rotated, the connecting sleeve 12 drives the half gear 11 to rotate, the half gear 11 drives the toothed plate 8 to slide along the inner wall of the sliding groove 101, and the toothed plate 8 drives the protective sleeve sliding sleeve 7 to slide along the outer wall of the horizontal rod 2 when sliding, so that the end of the sliding sleeve 7 is clamped into the extension slot 6, and the convex part of the outer wall of the sliding sleeve 7 is clamped into the slot in the inner wall of the extension slot 6; at this time, the warehouse door 13 is opened, and the protective fence 3 cannot be taken down;

[0035] When the warehouse door 13 is closed, the sliding sleeve 7 is moved out of the extension slot 6, at this time, the gap between the warehouse door 13 and the observation door 1 is not enough for the maintenance personnel to enter, at this time, the protective fence 3 can be installed and disassembled through the gap by lifting the protective fence 3;

[0036] After the guardrail 3 is disassembled, the bottom is separated from the extrusion to the ball 18, under the elastic force of the spring 17, the bottom of the resisting rod 16 is separated from the extrusion to the momentary switch 14, the momentary switch 14 controls the start and stop of the equipment, at this time, the equipment is powered off and stopped.

[0037] It should be noted that the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A safety guard for a coal preparation plant, characterised in that, Include: Observation door (1), the observation door (1) inner wall is fixedly connected with two cross bars (2); Slip bushing (7), the slip bushing (7) with cross bar (2) outer wall sliding connection, the slip bushing (7) outer wall is fixedly connected with the toothed plate (8); Guardrail (3), the guardrail (3) outer wall is provided with two holding grooves (5), the holding groove (5) with cross bar (2) outer wall joint, the holding groove (5) inner wall is all provided with extension slot (6), the slip bushing (7) end and extension slot (6) sliding connection; Rotating shaft (10), the rotating shaft (10) rotatablely installed on observation door (1), the rotating shaft (10) outer wall is fixedly connected with half gear (11), the half gear (11) with toothed plate (8) meshing; Bunker door (13), the bunker door (13) fixedly installed on rotating shaft (10).

2. The safety guard for coal preparation plants according to claim 1, characterized in that: The observation door (1) outer wall is also fixedly connected with two supporting blocks (9), and two supporting blocks (9) are rotatably connected with rotating shaft (10) respectively.

3. The safety guard for coal preparation plants according to claim 2, characterized in that: The rotating shaft (10) outer wall is fixedly connected with connecting sleeve (12), and the connecting sleeve (12) outer wall is fixedly connected with bunker door (13).

4. The safety guard for coal preparation plants according to claim 3, characterized in that: The observation door (1) outer wall is provided with sliding groove (101), and the toothed plate (8) is slidably connected with the inner wall of the sliding groove (101).

5. The safety shield for coal preparation plants according to claim 4, characterized in that: The guardrail (3) outer wall is provided with through hole, and the through hole inner wall is fixedly connected with a plurality of supporting rods (4).

6. The safety shield for coal preparation plants according to claim 5, characterized in that: The observation door (1) outer wall is provided with mounting groove (102), and the mounting groove (102) is fixedly connected with movable switch (14).

7. The safety shield for coal preparation plants according to claim 6, characterized in that: The mounting groove (102) inner wall is fixedly connected with mounting plate (15), the mounting plate (15) inner wall is slidably connected with abutting rod (16), the abutting rod (16) outer wall is sleeved with spring (17), and the abutting rod (16) top is embedded with rotatable ball (18).

8. The safety shield for coal preparation plants according to claim 7, characterized in that: One end of the spring (17) is fixedly connected with the abutting rod (16), and the other end of the spring (17) is fixedly connected with the mounting plate (15).

Images