Personalized tunnel support equipment folding protective net device

Abstract

The present invention discloses a folding protective net device for personalized tunnel support equipment, comprising two first-level hanging nets, with a second-level hanging net disposed between the two first-level hanging nets. In the folded state, the two first-level hanging nets are connected by a pin and a D-shaped pin and are locked and fixed with bolts and nuts, with the second-level hanging net overlapping the butt joint between the two first-level hanging nets. In the open state, the two first-level hanging nets are separated, and the second-level hanging net is assembled in the opening between the two first-level hanging nets, with its two sides respectively connected to the two first-level hanging nets by a pin and a D-shaped pin. The ear plates of the folding protective net are suspended between the front and rear top beams of the sliding support via a circular chain and a shackle. It is applied to the advance support of the fully mechanized mining working face chute and the return air roadway. It has the characteristics of high strength, fast moving speed, good support performance, safety and reliability.

Description

Technical Field

[0001] The invention relates to a tunnel support device, in particular to a personalized tunnel support device folding protective net device, which is an advanced support for a fully mechanized mining face drift and a return air tunnel. Background Art

[0002] The sliding tunnel advance support is a personalized tunnel support equipment that plays an important role in protecting the support operator.

[0003] Existing technologies, such as the ZH5600 / 26 / 38D sliding tunnel advance support device, use emulsion as the medium and consist of six longitudinal beams, four transverse beams, a suspended support mechanism, and a push mechanism. The longitudinal beams directly contact the roof along the roadway to provide support. The longitudinal beams are hinged in two sections, front and back. The upper portion of the transverse beams is hinged to the longitudinal beams, and the lower portion is hinged to the suspended support mechanism. The uprights move by lifting their legs and stepping, achieving self-propelled movement.

[0004] The first group of top beam devices is composed of three longitudinal beams and two supporting beams to form a group of assemblies, and the second group of top beam devices is composed of three longitudinal beams and two supporting beams to form a group of assemblies. When the frame is moved, the assemblies of the first group and the assemblies of the second group are moved forward alternately.

[0005] The above-mentioned prior art has at least the following disadvantages:

[0006] The space around the control valve varies in size, making it impossible to install a device at a fixed location to ensure the safety of underground operators. Summary of the Invention

[0007] The purpose of the present invention is to provide a personalized tunnel support equipment folding protection net device.

[0008] The purpose of the present invention is achieved through the following technical solutions:

[0009] The personalized tunnel support equipment folding protective net device of the present invention includes two first-level hanging nets, and a second-level hanging net is arranged between the two first-level hanging nets;

[0010] In the folded state, the two first-level hanging nets are connected by a pin and a D-pin, and the second-level hanging net overlaps the butt joint between the two first-level hanging nets;

[0011] In the open state, the two primary hanging nets are separated, and the secondary hanging net is assembled at the opening between the two primary hanging nets, and its two sides are respectively connected to the two primary hanging nets with pins and D-pins.

[0012] It can be seen from the technical solution provided by the present invention described above that the personalized tunnel support equipment folding protective net device provided by the embodiment of the present invention has the characteristics of high strength, fast moving speed, good support performance, safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1a, Figure 1b, Figure 1c They are respectively schematic diagrams of the folded state of the folding protective net device of the personalized tunnel support equipment provided by the embodiment of the present invention, namely the front view, side view and top view.

[0014] FIG2a, FIG2b, and FIG2c are schematic diagrams of the front view, side view, and top view of the folding protective net device of the personalized tunnel support equipment provided by an embodiment of the present invention in the open state, respectively.

[0015] Figure 3 Schematic diagram of the installation status of the folding protective net device of the personalized tunnel support equipment provided in an embodiment of the present invention.

[0016] In the picture:

[0017] 1. First-level hanging net, 2. Second-level hanging net, 3. Bolts, 4. Nuts, 5. Pins, 6. D-pins, 7. Ear plates, 8. Front top beam, 9. Shackles, 10. Round chain, 11. Folding protective net, 12. Rear top beam. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the embodiments of the present invention. Contents not described in detail in the embodiments of the present invention belong to the prior art known to those skilled in the art.

[0019] The preferred embodiment of the personalized tunnel support equipment folding protective net device of the present invention is:

[0020] It includes 2 first-level hanging nets, with 1 second-level hanging net between them;

[0021] In the folded state, the two first-level hanging nets are connected by a pin and a D-pin, and the second-level hanging net overlaps the butt joint between the two first-level hanging nets;

[0022] In the open state, the two primary hanging nets are separated, and the secondary hanging net is assembled at the opening between the two primary hanging nets, and its two sides are respectively connected to the two primary hanging nets with pins and D-pins.

[0023] In the folded state, the two first-level hanging nets are fastened with bolts and nuts.

[0024] The first-level hanging net and the second-level hanging net are both composed of equilateral angle steels and diamond-shaped hanging nets.

[0025] The folding protective net is provided with ear plates connected to the sliding bracket.

[0026] The ear plates of the folding protective net are suspended between the front and rear top beams of the sliding bracket through round-link chains and shackles.

[0027] The sliding support is an advanced support for the fully mechanized mining face drift and the return air tunnel.

[0028] The advance bracket is provided with a control valve;

[0029] When the control valve is installed on the left side of the forward direction of the bracket, the folding protective net is in a folded state;

[0030] When the control valve is installed on the right side of the forward direction of the bracket, the folding protection net is in an open state.

[0031] The personalized folding protective net device for tunnel support equipment of the present invention is applied to the advance support of the fully mechanized mining working face drift and return air tunnel. It has the characteristics of high strength, fast moving speed, good support performance, safety and reliability. Specific embodiment:

[0033] The personalized tunnel sliding support consists of six longitudinal beams, with a 350mm gap between each longitudinal beam. The gap is too large to ensure the safety of underground personnel and prevent the roof from breaking rocks or coal seams from collapsing and injuring people. Now a folding protective net device is installed on the top of the control valve to ensure the safety of underground operators.

[0034] The sliding support bears the load of the roof through the supporting beam and the top beam. The pressure from the roof is huge. In order to ensure the safe operation of personnel in the mine and adapt to the interchange of the left and right working faces, the sliding support folding protective net device plays a very important role in protecting the safety of underground workers.

[0035] When the control valve of this sliding tunnel advance support device is installed on the left side of the support's forward direction, the protective net device is in a folded state; when the control valve is installed on the right side of the support's forward direction, the protective net device is in an open state.

[0036] The folding and opening states of the sliding bracket folding protective net device are shown in Figures 1a, 1b, Figure 1c , as shown in Figure 2a, Figure 2b, and Figure 2c:

[0037] The protective net is composed of: 2 pieces of first-level hanging nets 1, 1 piece of second-level hanging net 2, the nets are connected by pins 5 and D-pins 6, and are folded and locked with bolts 3 and nuts 4.

[0038] The first-level hanging net 1 and the second-level hanging net 2 are both composed of equilateral angle steel and diamond hanging net;

[0039] The bolts 3 and nuts 4 are used to lock the connector when the protective net is in the folded state. The ear plates 7 on the hanging net serve as a connecting bridge between the folded protective net and the sliding bracket.

[0040] like Figure 3 As shown:

[0041] It includes a front top beam 8, a shackle 9, a round link chain 10, a folding protective net 11, and a rear top beam 12;

[0042] The folding protection net 11 is suspended between the front and rear top beams through a round link chain and a shackle, and is horizontally protected above the operator's head.

[0043] Beneficial effects of the present invention:

[0044] 1. Easy to install;

[0045] 2. The safety of control valves and underground operators is effectively guaranteed;

[0046] 3. It laid the foundation for the comprehensive mechanization of modern mines.

[0047] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A personalized folding protective net device for tunnel support equipment, characterized in that: It includes 2 first-level hanging nets, with 1 second-level hanging net between them; In the folded state, the two first-level hanging nets are connected by a pin and a D-pin, and the second-level hanging net overlaps the butt joint between the two first-level hanging nets; In the open state, the two primary hanging nets are separated, and the secondary hanging net is assembled at the opening between the two primary hanging nets, and its two sides are respectively connected to the two primary hanging nets with pins and D-pins; In the folded state, the two first-level hanging nets are fastened with bolts and nuts; The first-level hanging net and the second-level hanging net are both composed of equilateral angle steel and diamond hanging net; The folding protective net is provided with an ear plate connected to the sliding bracket; The ear plates of the folding protective net are suspended between the front and rear top beams of the sliding bracket through round link chains and shackles; The sliding support is an advanced support for the fully mechanized mining face chute and return air tunnel; The advance bracket is provided with a control valve; When the control valve is installed on the left side of the forward direction of the bracket, the folding protective net is in a folded state; When the control valve is installed on the right side of the forward direction of the bracket, the folding protection net is in an open state.

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