Safety protection device for coal excavation

Abstract

The utility model discloses a safety protection device for coal excavation, and relates to the technical field of coal excavation. The fence comprises a main frame and two auxiliary frames, a plurality of inserting cylinders are arranged on the two sides of the main frame in an array mode, a plurality of inserting rods are arranged on one side of each auxiliary frame in an array mode, the inserting rods are matched with the inserting cylinders located on the same side in an inserting mode, sleeves are arranged on the auxiliary frames, and the sleeves are sleeved with the inserting cylinders. The main frame is provided with an adjusting piece used for adjusting the two auxiliary frames to move synchronously and reversely. The stand column comprises a main rod, two auxiliary rods are arranged on the main rod, and the sleeve is matched with the auxiliary rods in an inserted mode; the hurdle is composed of the main frame and the two auxiliary frames, the main frame and the auxiliary frames are connected in an inserted and matched mode through the inserting cylinders and the inserting rods, the overall length of the hurdle can be adjusted through the adjusting pieces, even if the distances between the stand columns are inconsistent when the stand columns are installed, the hurdle can be smoothly connected to the two adjacent stand columns, and therefore installation convenience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of coal mining, and in particular to a safety protection device for coal mining. Background Art

[0002] The discovery, mining and processing of coal have provided convenience for human life. With the progress and development of society, the mechanical equipment used in coal mining has become more and more advanced. Due to the many uncertain factors in coal construction sites, the use of safety protection devices is indispensable, and safety guardrails are a more common type of protection device.

[0003] Existing guardrails are usually composed of frames and posts. Several posts are installed in sequence first, and then the frames are connected between two adjacent posts to form a guardrail for safety protection. The frame length of the existing guardrail is fixed. During installation, it is necessary to ensure that the spacing between the posts is compatible with the length of the guardrail. If the spacing between the posts is not accurately controlled, it will be inconvenient to install the frame. At the same time, the ground in the coal mine tunnel is uneven, and the horizontal height difference between the installation positions of adjacent posts is large, which makes the installation of the frame inconvenient. Therefore, the present application proposes a safety protection device for coal excavation. Utility Model Content

[0004] The purpose of this application is to solve the problems in the above-mentioned background technology, and to provide a safety protection device for coal mining.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] A safety protection device for coal mining, comprising:

[0007] The fence comprises a main frame and two auxiliary frames, wherein a plurality of plug-in cylinders are arranged in an array on both sides of the main frame, and a plurality of plug-in rods are arranged in an array on one side of the auxiliary frame, wherein the plurality of plug-in rods are respectively plugged into and matched with the plurality of plug-in cylinders located on the same side, the auxiliary frames are provided with sleeves, and the main frame is provided with an adjusting member for adjusting the synchronous reverse movement of the two auxiliary frames;

[0008] The column comprises a main rod, two auxiliary rods are arranged on the main rod, a sleeve is plugged into and matched with the auxiliary rods, and a fixing piece for fixing the sleeve is arranged on the main rod.

[0009] Furthermore, the adjusting member includes a double-headed screw barrel rotatably arranged on the main frame, and the two sub-frames are each provided with a screw rod, and the free ends of the two screw rods are respectively threadedly inserted into the two ends of the double-headed screw barrel.

[0010] Furthermore, a driven bevel gear is fixedly provided on the double-start screw barrel, an adjusting rod is rotatably provided on the main frame, and a transmission bevel gear meshing with the teeth of the driven bevel gear is fixedly provided on the end of the adjusting rod.

[0011] Furthermore, the fixing member includes an adjusting sleeve threadedly sleeved on the main rod, and the adjusting sleeve is provided with a limiting plate overlapped with the end of the sleeve.

[0012] Furthermore, the limiting plate is rotatably connected to the adjusting cylinder, and two limiting holes are formed through the limiting plate, and the two auxiliary rods are respectively plugged into and matched with the two limiting holes.

[0013] Furthermore, two connecting rods are hinged between the sub-frame and the sleeve.

[0014] Furthermore, a grounding plate is provided at the bottom of the main rod, and a plurality of anchor rods are movably passed through the grounding plate.

[0015] Furthermore, a thread groove is provided at the bottom end of the main rod, and a threaded rod threadably matched with the thread groove is provided on the grounding plate.

[0016] The beneficial effects of this application are as follows:

[0017] 1. In the present application, the hurdle frame consists of a main frame and two sub-frames. The main frame and the sub-frames are connected by plug-in cooperation of a plug-in tube and a plug-in rod. The overall length of the hurdle frame can be adjusted by an adjusting piece. Even if there is inconsistency in the spacing between the posts when installing the posts, the hurdle frame can be smoothly connected to two adjacent posts, thereby improving the convenience of installation.

[0018] 2. In the present application, by hingedly connecting the connecting rod between the sub-frame and the sleeve, even if there is a difference in installation height between two adjacent columns, the entire hurdle frame can be tilted and adjusted through the hinged connection of the connecting rod to ensure that the hurdle frame can be smoothly installed between two adjacent columns.

[0019] 3. In this application, a grounding plate is installed at the bottom end of the main pole through the cooperation of a threaded groove and a threaded rod, which not only increases the contact area between the column and the ground and improves the stability of the column installation, but also can adjust the overall height of the column, making it easier to install the hurdle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of this application;

[0021] Figure 2 This is a three-dimensional structural diagram of the hurdle of this application;

[0022] Figure 3 This is a cross-sectional view of the three-dimensional structure of the hurdle of the present application;

[0023] Figure 4This is another three-dimensional structural cross-sectional view of the hurdle of the present application;

[0024] Figure 5 This is a three-dimensional structural diagram of the column of this application;

[0025] Figure 6 This is a cross-sectional view of the three-dimensional structure of the column of this application;

[0026] Figure 7 This application Figure 4 Enlarged view of point A in the middle;

[0027] Figure 8 This application Figure 6 Enlarged view of point B in the middle.

[0028] Figure numerals: 1. Fence; 2. Post; 3. Driven bevel gear; 4. Adjusting rod; 5. Transmission bevel gear; 6. Limiting hole; 7. Connecting rod; 8. Grounding plate; 9. Anchor rod; 10. Threaded groove; 11. Threaded rod; 101. Main frame; 102. Sub-frame; 103. Connecting cylinder; 104. Connecting rod; 105. Sleeve; 106. Adjusting part; 1061. Double-start screw barrel; 1062. Screw rod; 201. Main rod; 202. Sub-rod; 203. Fixing part; 2031. Adjusting cylinder; 2032. Limiting plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0030] like Figures 1-8 As shown, a safety protection device for coal mining proposed in one embodiment of the present application includes:

[0031] The hurdle frame 1 comprises a main frame 101 and two sub-frames 102. The two sub-frames 102 are respectively located on both sides of the main frame 101. A plurality of plug-in tubes 103 are arranged in an array on both sides of the main frame 101. A plurality of plug-in rods 104 are arranged in an array on one side of the sub-frame 102. The plurality of plug-in rods 104 are respectively plugged with a plurality of plug-in tubes 103 located on the same side. A sleeve 105 is provided on the sub-frame 102. The main frame 101 is provided with an adjusting member 106 for adjusting the synchronous reverse movement of the two sub-frames 102. The main frame 101, the sub-frame 102, the plug-in tubes 103 and the plug-in rods 104 constitute the hurdle frame 1. Through the plug-in cooperation of the plug-in rods 104 and the plug-in tubes 103, the distance between the two sub-frames 102 can be adjusted by sliding the two. The synchronous reverse movement of the two sub-frames 102 is adjusted by the adjusting member 106, thereby adjusting the overall length of the hurdle frame 1.

[0032] The column 2 includes a main rod 201, on which two auxiliary rods 202 are provided. The sleeve 105 is plugged into the auxiliary rod 202. The main rod 201 is provided with a fixing piece 203 for fixing the sleeve 105. When installing the guardrail, the column 2 is first installed on the ground, and then the overall length of the fence 1 is adjusted by the adjusting piece 106 so that the length of the fence 1 is consistent with the distance between the two adjacent columns 2. Then, the sleeves 105 at both ends are respectively mounted on the auxiliary rods 202 on the two adjacent columns 2, and then the sleeves 105 are fixed by the fixing piece 203, thereby forming a safety guardrail;

[0033] In this solution, the hurdle frame 1 is composed of a main frame 101 and two sub-frames 102. The main frame 101 and the sub-frame 102 are connected by plug-in cooperation of a plug-in tube 103 and a plug-in rod 104. The overall length of the hurdle frame 1 can be adjusted by an adjusting piece 106. Even if there is inconsistency in the spacing between the columns 2 when installing the columns 2, the hurdle frame 1 can be smoothly connected to two adjacent columns 2, thereby improving the convenience of installation.

[0034] like Figure 3 As shown, in some embodiments, the adjustment member 106 includes a double-headed screw barrel 1061 rotatably set on the main frame 101, and a screw rod 1062 is set on each of the two sub-frames 102. The free ends of the two screw rods 1062 are respectively threadedly inserted into the two ends of the double-headed screw barrel 1061. Preferably, the spiral rotation directions of the two ends of the double-headed screw barrel 1061 are opposite. When adjusting the length of the hurdle frame 1, the double-headed screw barrel 1061 is twisted to rotate, thereby driving the two screw rods 1062 to move synchronously in the opposite direction, thereby achieving the effect of driving the two sub-frames 102 to move synchronously in the opposite direction. At the same time, the threaded cooperation between the double-headed screw barrel 1061 and the screw rod 1062 is self-locking to ensure the stability after adjusting the hurdle frame 1.

[0035] like Figure 7 As shown, in some embodiments, a driven bevel gear 3 is fixedly provided on the double-headed screw barrel 1061, an adjusting rod 4 is rotatably provided on the main frame 101, and a transmission bevel gear 5 that meshes with the teeth of the driven bevel gear 3 is fixedly provided on the end of the adjusting rod 4. Since the double-headed screw barrel 1061 is located between two adjacent plug-in barrels 103, the adjusting rod 4 is rotated, and the adjusting rod 4 and the double-headed screw barrel 1061 are connected to each other through the meshing transmission of the transmission bevel gear 5 and the driven bevel gear 3. Therefore, rotating the adjusting rod 4 can drive the double-headed screw barrel 1061 to rotate, thereby improving the convenience of adjustment.

[0036] like Figure 8As shown, in some embodiments, the fixing member 203 includes an adjusting cylinder 2031 threadedly mounted on the main rod 201, and a limiting plate 2032 is provided on the adjusting cylinder 2031, which overlaps with the end of the sleeve 105. When the sleeve 105 is mounted on the secondary rod 202, the adjusting cylinder 2031 is threadedly mounted on the main rod 201, and then the adjusting cylinder 2031 is rotated to move, so that the limiting plate 2032 contacts the end of the sleeve 105, thereby limiting the axial movement of the sleeve 105, so as to achieve the effect of fixing the sleeve 105. The method of fixing or releasing the fixing is relatively simple and convenient, thereby improving practicality.

[0037] like Figure 8 As shown, in some embodiments, the limit plate 2032 is rotatably connected to the adjustment cylinder 2031, and two limit holes 6 are penetrated on the limit plate 2032. The two sub-rods 202 are respectively plugged into the two limit holes 6. By rotatably connecting the limit plate 2032 to the adjustment cylinder 2031 and penetrating the limit holes 6 that are plugged into the sub-rods 202, when the sleeve 105 is sleeved on the sub-rod 202, the sub-rod 202 is aligned with the limit holes 6, and then the adjustment cylinder 2031 is twisted to move. When the limit plate 2032 contacts and fixes the sleeve 105, the end of the sub-rod 202 also penetrates the limit hole 6, so that the limit plate 2032 can not only be used to fix the sleeve 105, but also support the sub-rod 202, so that both ends of the sub-rod 202 have support points, further improving the stability of the hurdle 1 after connection.

[0038] like Figure 2 、 Figure 3 and Figure 4 As shown, in some embodiments, two connecting rods 7 are hinged between the sub-frame 102 and the sleeve 105. Since the ground in the coal mine tunnel is uneven, when the installation level difference between adjacent columns 2 is large, the connecting rod 7 is hinged between the sub-frame 102 and the sleeve 105. Therefore, even if there is an installation height difference between two adjacent columns 2, the entire fence 1 can be tilted and adjusted through the hinged connection of the connecting rod 7 to ensure that the fence 1 can be smoothly installed between two adjacent columns 2.

[0039] like Figure 5 As shown, in some embodiments, a grounding plate 8 is provided at the bottom of the main pole 201, and a plurality of anchor rods 9 are movably passed through the grounding plate 8. Preferably, the plurality of anchor rods 9 are distributed in a ring shape. Through the provided grounding plate 8, when the column 2 is installed, the grounding plate 8 contacts the ground, thereby increasing the contact area between the column 2 and the ground, and then the grounding plate 8 is fixed to the ground by a plurality of anchor rods 9, thereby improving the stability of the column 2 after installation and improving the overall stability of the guardrail.

[0040] like Figure 6As shown, in some embodiments, a thread groove 10 is provided at the bottom end of the main pole 201, and a threaded rod 11 threadedly engaged with the thread groove 10 is provided on the grounding plate 8. By providing a thread groove 10 at the bottom end of the main pole 201 and providing a threaded rod 11 threadedly engaged with the thread groove 10 on the grounding plate 8, the distance between the main pole 201 and the grounding plate 8 can be adjusted, thereby adjusting the overall height of the column 2, so as to facilitate more convenient connection of the fence 1 between two adjacent columns 2.

[0041] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A safety protection device for coal mining, characterized in that: include: A fence (1) comprises a main frame (101) and two auxiliary frames (102), wherein a plurality of plug-in cylinders (103) are arranged in an array on both sides of the main frame (101), a plurality of plug-in rods (104) are arranged in an array on one side of the auxiliary frame (102), the plurality of plug-in rods (104) are respectively plugged into and matched with a plurality of plug-in cylinders (103) located on the same side, a sleeve (105) is arranged on the auxiliary frame (102), and an adjusting member (106) for adjusting the synchronous reverse movement of the two auxiliary frames (102) is arranged on the main frame (101); The column (2) comprises a main rod (201), two auxiliary rods (202) are provided on the main rod (201), a sleeve (105) is plugged into and matched with the auxiliary rods (202), and a fixing piece (203) for fixing the sleeve (105) is provided on the main rod (201).

2. The safety protection device for coal mining according to claim 1, characterized in that: The adjusting member (106) comprises a double-headed screw barrel (1061) rotatably arranged on the main frame (101), and screw rods (1062) are respectively arranged on the two sub-frames (102), and the free ends of the two screw rods (1062) are respectively threadedly inserted into the two ends of the double-headed screw barrel (1061).

3. The safety protection device for coal mining according to claim 2, characterized in that: A driven bevel gear (3) is fixedly provided on the double-headed screw barrel (1061), an adjusting rod (4) is rotatably provided on the main frame (101), and a transmission bevel gear (5) is fixedly provided at the end of the adjusting rod (4) and meshes with the teeth of the driven bevel gear (3).

4. The safety protection device for coal mining according to claim 1, characterized in that: The fixing member (203) comprises an adjusting cylinder (2031) threadedly sleeved on the main rod (201), and a limiting plate (2032) is provided on the adjusting cylinder (2031) and overlaps with the end of the sleeve (105).

5. The safety protection device for coal mining according to claim 4, characterized in that: The limiting plate (2032) is rotatably connected to the regulating cylinder (2031), and two limiting holes (6) are formed through the limiting plate (2032), and the two auxiliary rods (202) are respectively plugged into the two limiting holes (6).

6. The safety protection device for coal mining according to claim 1, characterized in that: Two connecting rods (7) are hinged between the sub-frame (102) and the sleeve (105).

7. The safety protection device for coal mining according to claim 1, characterized in that: A grounding plate (8) is provided at the bottom of the main rod (201), and a plurality of anchor rods (9) are movably passed through the grounding plate (8).

8. The safety protection device for coal mining according to claim 7, characterized in that: A threaded groove (10) is provided at the bottom end of the main rod (201), and a threaded rod (11) threadably matched with the threaded groove (10) is provided on the grounding plate (8).

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