Automatic telescopic folding type airborne face-facing protective net

Abstract

The utility model discloses an automatic telescopic folding type airborne face-facing protective net which comprises a main frame and a steel wire net installed in the main frame, folding frame sliding ways are installed on the two sides of the main frame, and telescopic frame sets are installed on the sides, away from the main frame, of the folding frame sliding ways. Foldable protective nets are further installed between the two sides of the main frame and the ends of the telescopic frame sets. An oil cylinder is installed between the folding frame sliding way and the main frame, and the oil cylinder is connected with the telescopic frame set and can drive the telescopic frame set to drive the protective net to stretch out or retract back. Face-facing protection is changed into full-automatic telescopic folding airborne protection from an original mode of manually hanging face-facing net protection, hydraulic power of the driving and anchoring machine can be used as a power source, only one driver of the driving and anchoring machine is needed to complete operation in an operation room, the driver does not need to go to the head to hang a protective net, safety risks are reduced, safety benefits are improved, and the safety of the driving and anchoring machine is guaranteed. The personnel investment is reduced, the operation efficiency is improved, and meanwhile the airborne protection strength is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunneling equipment, in particular to an automatically retractable and foldable machine-borne frontal protection net. Background Art

[0002] In traditional face protection, airborne support is used as temporary support from the end of cutting by the anchor drill to the permanent support. The face protection is completed by manually hanging the face net, which is time-consuming (10 minutes of operation) and labor-intensive (2 people). During the hanging of the face protection net, operators have to face the exposed tunnel directly, and there is a risk of coal gangue falling and injuring people at any time, which poses a high safety risk. In addition, traditional face protection nets are relatively bulky and inconvenient to operate. They cannot provide adequate protection in the excavation tunnel and suffer large losses. Therefore, we strive to innovate the traditional manual hanging method of face protection.

[0003] The existing technology currently has the following shortcomings: the manual hanging operation process is complicated and time-consuming, the efficiency is low, the safety risks during the operation are relatively high, and the protection strength is insufficient. For this reason, this application proposes an automatically retractable and foldable airborne head-on protection net to solve the above shortcomings. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to solve the problem that the protection strength of the current anchor digging machine is not enough and the safety risk is relatively large during digging.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] An automatic telescopic folding type aircraft-mounted frontal protection net comprises a main frame and a wire mesh installed in the main frame, folding frame slides are installed on both sides of the main frame, a telescopic frame group is installed on the side of the folding frame slide away from the main frame, and a foldable protection net is also installed on both sides of the main frame and between the ends of the telescopic frame group;

[0007] An oil cylinder is installed between the folding frame slide and the main frame, and the oil cylinder is connected to the telescopic frame group and can drive the telescopic frame group to extend or retract the protective net.

[0008] This application changes the head-on protection from the original manual head-on net protection method to a fully automatic retractable and foldable machine-mounted protection. The hydraulic power of the anchor driller itself can be used as the power source. Only the anchor driller driver is required to complete the operation in the operating room. Personnel do not need to hang the protective net head-on, which reduces safety risks, improves safety benefits, reduces personnel investment, improves work efficiency, and at the same time improves the strength of machine-mounted protection.

[0009] As a further solution of the utility model: both sides of the wire mesh are installed on the main frame through a plurality of wire mesh lock buckles.

[0010] As a further solution of the utility model: the telescopic frame group includes a primary telescopic frame, a secondary telescopic frame and a tertiary telescopic frame, wherein one side of the primary telescopic frame is slidably connected to the folding frame slide, one side of the secondary telescopic frame is slidably connected to the primary telescopic frame, and one side of the tertiary telescopic frame is slidably connected to the secondary telescopic frame.

[0011] As a further solution of the utility model: the first-stage telescopic frame, the second-stage telescopic frame and the third-stage telescopic frame are connected via a folding bracket, and the output end of the oil cylinder is connected to the first-stage telescopic frame.

[0012] As a further solution of the utility model: the folding bracket includes two support rods movably connected to the primary telescopic frame, wherein the two support rods are arranged in an "X" shape; one end of the two support rods facing the main frame is slidably connected to the folding frame slideway, and the other end of the two support rods facing away from the main frame is slidably connected to the secondary telescopic frame through a movable sliding sleeve;

[0013] The folding bracket also includes two connecting rods, one end of the two connecting rods is movably connected to the mounting block 1 on the three-stage telescopic frame, and the other ends of the two connecting rods are respectively connected to two movable sliding sleeves on the two-stage telescopic frame.

[0014] As a further solution of the utility model: positioning rods are provided on the two folding frame slides and on both sides of the main frame, wherein the positioning rods are fixed to the oil cylinder.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] This application changes the head-on protection from the original manual head-on net protection method to a fully automatic retractable and foldable machine-mounted protection. The hydraulic power of the anchor driller itself can be used as the power source. Only the anchor driller driver is required to complete the operation in the operating room. Personnel do not need to hang the protective net head-on, which reduces safety risks, improves safety benefits, reduces personnel investment, improves work efficiency, and at the same time improves the strength of machine-mounted protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a diagram of an extended state of an automatic retractable and foldable aircraft-mounted frontal protection net according to an embodiment of the utility model;

[0018] Figure 2 This is a diagram showing the recovery state of an automatic retractable and foldable aircraft-mounted frontal protection net according to an embodiment of the utility model;

[0019] Explanation of the reference numerals: 1. Main frame; 2. Folding frame slide; 3. First-stage telescopic frame; 4. Second-stage telescopic frame; 5. Third-stage telescopic frame; 6. Folding bracket; 7. Mounting block one; 8. Moving sleeve; 9. Positioning pin; 10. Mounting block two; 11. Slide; 12. Cylinder; 13. Mounting pin; 14. Wire mesh lock; 15. Wire mesh; 16. Positioning rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1 and Figure 2 An automatic telescopic and foldable machine-mounted face protection net includes a main frame 1, a folding frame slide 2, a first-level telescopic frame 3, a second-level telescopic frame 4, a third-level telescopic frame 5, a folding bracket 6, a mounting block 7, a movable slide sleeve 8, a positioning pin 9, a mounting block 10, a slide 11, a cylinder 12, a mounting pin shaft 13, a wire mesh lock 14, a wire mesh 15 and a positioning rod 16. The face protection net of the present application is installed on a digging and anchoring machine, and is driven by the digging and anchoring machine to move to the desired position, and then is controlled, using the hydraulic power of the digging and anchoring machine itself as the power source, and is matched with a folding and telescopic bracket to form a linkage function, so as to achieve the effect of one person operating, whole machine control, and free extension of the face net.

[0022] Reference Figure 1 and Figure 2 The main frame 1 is made of two 60mmx60mmx5mm square tubes welded together and fixed together with the temporary onboard support of the anchor mining machine. The two square tubes are placed vertically and parallel to each other. Then the wire mesh 15 is fixed to the two square tubes through the wire mesh lock 14. The wire mesh 15 plays the role of blocking small pieces of coal gangue. The wire mesh lock 14 is used to fix the wire mesh 15 and the main frame 1.

[0023] Reference Figure 1 and Figure 2The folding frame slide 2 adopts two 40mmx40mmx4mm angle steels, which are processed into 80mm channel steels by welding, and are welded to the edge of the main frame 1. A long slide groove 11 is opened on the surface to serve as a track (slide) for the folding bracket 6 to move. A parallel cross bar is set on the side of the folding frame slide 2 facing the main frame 1. The two cross bars have built-in slide grooves. The first-level telescopic frame 3 can be slidably connected to the slide groove. A cylinder 12 is also provided between the folding frame slide 2 and the main frame 1. There are two cylinders 12. The two cylinders 12 are symmetrically distributed on both sides of the main frame 1. The upper and lower ends of the cylinder 12 are fixed to the two parallel cross bars in the folding frame slide 2 through positioning rods 16; the cylinder 12 is provided with an installation pin 13 for fixing.

[0024] Reference Figure 1 and Figure 2 The first-level telescopic frame 3 is made of galvanized steel pipe welding and is used in conjunction with the main frame 1. It can be freely inserted into the folding frame slide 2 on one side of the main frame 1. The first-level telescopic frame 3 includes a vertical rod and two parallel cross rods arranged on one side of the vertical rod. The cross rod is also a galvanized steel pipe; the cross rod can be slidably connected to the cross rod of the folding frame slide 2, so the first-level telescopic frame 3 can be extended and retracted relative to the folding slide 2; a mounting block 2 10 is provided at the middle position of the first-level telescopic frame 3, and the output end of the cylinder 12 can be detachably connected to the mounting block 2 10 through a positioning pin 9.

[0025] Reference Figure 1 and Figure 2 The secondary telescopic frame 4 is made of galvanized steel pipe welding and is used in conjunction with the primary telescopic frame 3. It can be freely inserted into the cross bar of the primary telescopic frame 3. The secondary telescopic frame 4 is similar in structure to the primary telescopic frame 3, and also includes a vertical rod and two parallel cross rods arranged on one side of the vertical rod. The cross rod is also a galvanized steel pipe; the cross rod can be slidably connected to the cross rod of the primary telescopic frame 3, so the secondary telescopic frame 4 can be extended and retracted relative to the primary telescopic frame 3; two movable sliding sleeves 8 are slidably sleeved on the secondary telescopic frame 4, and the two movable sliding sleeves 8 are used to install the folding bracket 6.

[0026] Reference Figure 1 and Figure 2 The three-stage telescopic frame 5 is made of steel bar welding and is used in conjunction with the two-stage telescopic frame 4. It can be freely inserted into the cross bar of the two-stage telescopic frame 4. The three-stage telescopic frame 5 is similar in structure to the two-stage telescopic frame 4 and the one-stage telescopic frame 3, and also includes a vertical bar and two parallel cross bars arranged on one side of the vertical bar, and the cross bar is also a galvanized steel pipe; the cross bar can be slidably connected to the cross bar of the two-stage telescopic frame 4, so the three-stage telescopic frame 5 can be extended and retracted relative to the two-stage telescopic frame 4; a mounting block 7 is provided on the three-stage telescopic frame 5, wherein the mounting block 7 is used to install the folding bracket 6.

[0027] Reference Figure 1 and Figure 2 The folding bracket 6 includes two support rods movably connected to the mounting block 2 10, wherein the two support rods are arranged in an "X" shape; one end of the two support rods facing the main frame 1 is slidably connected to the slide groove 11 on the folding frame slide 2, and the other end facing away from the main frame 1 is movably connected to the movable sliding sleeve 8; the movable sliding sleeve 8 is slidably connected to the vertical rod of the secondary telescopic frame 4;

[0028] The folding bracket 6 also includes two connecting rods, one end of each of which is movably connected to a mounting block 7 on the third-stage telescopic frame 5 , and the other ends of each of the two connecting rods are respectively connected to two movable sleeves 8 on the second-stage telescopic frame 4 .

[0029] The specific operating principles of this application are as follows:

[0030] Therefore, the control of the oil cylinder 12 can drive the first telescopic frame 3 to extend out of the folding frame slide 2, at which time the two "X"-shaped support rods are unfolded, and driven by the movable sliding sleeve 8, the two connecting rods 6 are also unfolded, and the final state of the unfolding is Figure 1 In the state shown, when unfolding, the protective net between the main frame 1 and the third telescopic frame 5 at the farthest point is unfolded, and the protective net can also be made of wire mesh; and correspondingly, the retraction is also controlled by the oil cylinder 12, but the difference is that when retracting, the first telescopic frame 3 is retracted into the folding frame slide 2, and the two supporting rods arranged in an "X" shape are merged. Driven by the moving sliding sleeve 8, the two connecting rods 6 are also merged, and the final state of retraction is Figure 2 In the state shown, when retracting, the protective net between the main frame 1 and the farthest third-level telescopic frame 5 is also retracted;

[0031] The entire process is driven by the oil cylinder 12, and the oil cylinder 12 uses the hydraulic power of the anchor miner as its power source, and is matched with a folding and telescopic bracket to form a linkage function, so as to achieve the effect of one person operating, whole machine control, and free extension of the face net.

[0032] This application changes the head-on protection from the original manually hung head-on net protection method to fully automatic retractable and foldable airborne protection. The whole process takes about 15 seconds, which reduces manpower input and improves work efficiency. At the same time, the strength of airborne protection is improved, manual operation is avoided, safety risks are reduced, and safety benefits are improved.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatically retractable and foldable airborne frontal protection net, comprising a main frame (1) and a steel wire net (15) installed in the main frame (1), characterized in that: Folding frame slideways (2) are installed on both sides of the main frame (1), a telescopic frame group is installed on the side of the folding frame slideway (2) away from the main frame (1), and a foldable protective net is also installed on both sides of the main frame (1) and between the ends of the telescopic frame group; An oil cylinder (12) is installed between the folding frame slideway (2) and the main frame (1), and the oil cylinder (12) is connected to the telescopic frame group and can drive the telescopic frame group to extend or retract the protective net.

2. The automatic retractable and foldable airborne face protection net according to claim 1, characterized in that: Both sides of the steel mesh (15) are mounted on the main frame (1) via a plurality of steel mesh lock buckles (14).

3. The automatic retractable and foldable airborne face protection net according to claim 1, characterized in that: The telescopic frame group comprises a primary telescopic frame (3), a secondary telescopic frame (4) and a tertiary telescopic frame (5), wherein one side of the primary telescopic frame (3) is slidably connected to the inside of the folding frame slideway (2), one side of the secondary telescopic frame (4) is slidably connected to the inside of the primary telescopic frame (3), and one side of the tertiary telescopic frame (5) is slidably connected to the inside of the secondary telescopic frame (4).

4. The automatic retractable and foldable airborne face protection net according to claim 3 is characterized by: The first telescopic frame (3), the second telescopic frame (4) and the third telescopic frame (5) are connected via a folding bracket (6), and the output end of the oil cylinder (12) is connected to the first telescopic frame (3).

5. The automatic retractable and foldable airborne face protection net according to claim 4, characterized in that: The folding bracket (6) comprises two support rods movably connected to the primary telescopic frame (3), wherein the two support rods are arranged in an "X" shape; the ends of the two support rods facing the main frame (1) are slidably connected to the folding frame slideway (2), and the ends of the two support rods facing away from the main frame (1) are slidably connected to the secondary telescopic frame (4) via a movable sliding sleeve (8); The folding bracket (6) also includes two connecting rods, one end of each of which is movably connected to a mounting block (7) on the third-stage telescopic frame (5), and the other ends of each of which are respectively connected to two movable sleeves (8) on the second-stage telescopic frame (4).

6. The automatic retractable and foldable aircraft-mounted face protection net according to claim 1, characterized in that: Positioning rods (16) are provided on the two folding frame slideways (2) and on both sides of the main frame (1), wherein the positioning rods (16) are fixed to the oil cylinder (12).

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