Suspension type single hydraulic prop for coal mine support

Abstract

The utility model discloses a suspension type single hydraulic prop for coal mine supporting, which comprises a hydraulic prop, a protective cover, a synchronous disc and a protective assembly, and the protective cover is sleeved on the telescopic end of the hydraulic prop; the synchronous disc is installed at the telescopic end of the hydraulic prop, and the two ends of the protective cover are connected with the synchronous disc and the hydraulic prop correspondingly. The protection assembly comprises a mounting plate, a gas storage box, a first connecting pipe, a first one-way valve, a second connecting pipe, a sealing box, a plurality of dispersion holes and an extrusion mechanism, and the mounting plate is mounted on the hydraulic prop; the gas storage tank is mounted at one end of the mounting plate; one end of the first connecting pipe is installed on the gas storage tank, and the other end of the first connecting pipe is installed on the protective cover. Therefore, gas in the protective cover is circulated through movement of the output end of the hydraulic prop, the gas is cooled through water in the gas storage box during circulation, meanwhile, the humidity of the gas can be increased, and the heat dissipation effect on the hydraulic prop is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic props, in particular to a suspended single hydraulic prop for coal mine support. Background Technique

[0002] During the coal mining process, in order to ensure the safety and stability of the mine, hydraulic props are often used as a support structure to maintain the stability of the roadway or working face. A single hydraulic prop refers to a single collapsible prop that uses liquid pressure to generate working resistance and realizes column lifting and unloading.

[0003] During use, after the stroke rod rises, its surface is exposed. If the surface coating is damaged by blasting or dropping, coal powder is likely to enter the inner cavity of the oil cylinder, pollute the sealing surfaces of the cylinder body and the valve, cause liquid leakage and pillar collapse, and affect safe production. Therefore, a seal is used to seal the stroke rod. However, since the hydraulic prop is in a high-pressure state for a long time, heat accumulation is likely to occur, and the wrapped stroke rod will directly affect the heat dissipation effect, which will not only affect the working efficiency of the prop, but also may shorten its service life. Content of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems in the related technologies to a certain extent.

[0005] For this reason, the purpose of the utility model is to provide a suspended single hydraulic prop for coal mine support, which reduces the gas temperature and increases the humidity of the gas through the circulation of the gas, so as to dissipate heat from the hydraulic prop and improve the service life of the hydraulic prop.

[0006] To achieve the above object, the utility model provides a suspended single hydraulic prop for coal mine support, including a hydraulic prop, a protective cover, a synchronous disk and a protection component. Among them, the protective cover is sleeved on the telescopic end of the hydraulic prop; the synchronous disk is installed on the telescopic end of the hydraulic prop, and both ends of the protective cover are respectively connected to the synchronous disk and the hydraulic prop; the protection component includes a mounting plate, a gas storage tank, a first connecting pipe, a first one-way valve, a second connecting pipe, a sealing box, a plurality of dispersion holes and an extrusion mechanism. Among them, the mounting plate is installed on the hydraulic prop; the gas storage tank is installed at one end of the mounting plate; one end of the first connecting pipe is installed on the gas storage tank, and the other end of the first connecting pipe is installed on the protective cover; the first one-way valve is installed on the first connecting pipe; both ends of the second connecting pipe are respectively installed on the protective cover and the gas storage tank; the sealing box is installed on the inner wall of the gas storage tank, and the sealing box is communicated with the first connecting pipe; a plurality of the dispersion holes are uniformly opened on the sealing box; the extrusion mechanism is installed on the gas storage tank.

[0007] In addition, the suspended single hydraulic prop for coal mine support proposed above according to the application may further have the following additional technical features:

[0008] Specifically, the first connecting pipe and the second connecting pipe are located on the same straight line.

[0009] Specifically, one end of the second connecting pipe is located at a position three - quarters above the upper part of the gas storage tank.

[0010] Specifically, the extrusion mechanism includes a connecting box, a sealing plate, a connecting rod, a connecting disk and a pulling spring. Among them, the connecting box is installed on the gas storage tank, and the connecting box communicates with the gas storage tank; the sealing plate is slidably sealed in the connecting box; the connecting rod is installed on the sealing plate and penetrates and slides in the connecting box; the connecting disk is installed at the top of the connecting rod; one end of the pulling spring is installed on the connecting disk, and the other end of the pulling spring is installed on the connecting box.

[0011] Specifically, a pressure gauge is installed on the top of the connecting box.

[0012] For the suspended single hydraulic prop for coal mine support of the present utility model, the movement of the output end of the hydraulic prop is used to circulate the gas inside the protective cover. During the circulation, the water inside the gas storage tank is used to cool the gas, and at the same time, the humidity of the gas can be increased, further improving the heat dissipation effect of the hydraulic prop.

[0013] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0014] The above - mentioned and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0015] Figure 1 is a schematic structural diagram of a suspended single hydraulic prop for coal mine support according to an embodiment of the present utility model;

[0016] Figure 2 is a perspective view of a protective component according to an embodiment of the present utility model;

[0017] Figure 3 is a cross - sectional view of a protective component according to an embodiment of the present utility model.

[0018] As shown in the figure: 1. Hydraulic support; 2. Protective cover; 3. Synchronous disk; 4. Protection component; 41. Mounting plate; 42. Air storage tank; 43. First connecting pipe; 44. First one-way valve; 45. Second connecting pipe; 46. Sealing box; 47. Dispersion holes; 48. Extrusion mechanism; 481. Connecting box; 482. Sealing plate; 483. Connecting rod; 484. Connecting disk; 485. Pulling spring. Detailed implementation mode

[0019] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and scope of the appended claims.

[0020] The suspended single hydraulic support for coal mine support according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0021] As Figure 1 - Figure 3 shown, the suspended single hydraulic support for coal mine support according to the embodiment of the present invention includes a hydraulic support 1, a protective cover 2, a synchronous disk 3 and a protection component 4. Among them, the protective cover 2 is sleeved on the telescopic end of the hydraulic support 1, the synchronous disk 3 is installed on the telescopic end of the hydraulic support 1, and both ends of the protective cover 2 are respectively connected to the synchronous disk 3 and the hydraulic support 1.

[0022] It should be noted that in this application, air enters water to cool the air, so as to achieve the purpose of cooling the hydraulic support. At the same time, the air entering the water can also increase the humidity of the air, and increasing the humidity of the air also has a good cooling effect.

[0023] The protection component 4 includes a mounting plate 41, an air storage tank 42, a first connecting pipe 43, a first one-way valve 44, a second connecting pipe 45, a sealing box 46, a plurality of dispersion holes 47 and an extrusion mechanism 48. Among them, the mounting plate 41 is installed on the hydraulic support 1.

[0024] It should be noted that a second one-way valve is installed on the second connecting pipe 45. The second one-way valve is to prevent the gas inside the protective cover 2 from flowing into the air storage tank 42 without passing through the first connecting pipe 43 when the protective cover 2 is squeezed, while the first one-way valve is to prevent the water inside the air storage tank 42 from flowing back into the protective cover 2 under the action of pressure.

[0025] The gas storage tank 42 is installed at one end of the mounting plate 41. One end of the first connecting pipe 43 is installed on the gas storage tank 42, and the other end of the first connecting pipe 43 is installed on the protective cover 2. The first one-way valve 44 is installed on the first connecting pipe 43. Both ends of the second connecting pipe 45 are respectively installed on the protective cover 2 and the gas storage tank 42.

[0026] It should be noted that a certain amount of water is contained in the gas storage tank 42, and the amount of water should submerge the sealing box 46. Thus, when the gas is discharged from the dispersion holes 47 on the sealing box 46, the water inside the gas storage tank 42 can cool the air, and there is a certain amount of gas stored inside the gas storage tank 42 to ensure that there is enough gas to push the protective cover 2 to reset.

[0027] The sealing box 46 is installed on the inner wall of the gas storage tank 42, and the sealing box 46 communicates with the first connecting pipe 43. A plurality of dispersion holes 47 are evenly opened on the sealing box 46. The extrusion mechanism 48 is installed on the gas storage tank 42.

[0028] Specifically, during the actual use process, although the protective cover 2 can be used to protect the output end of the hydraulic support 1, it will affect the heat dissipation of the hydraulic support 1.

[0029] When the output end of the hydraulic support 1 moves downward, it will drive the synchronous disk 3 to move downward. The downward movement of the synchronous disk 3 will squeeze the protective cover 2, causing the gas inside the protective cover 2 to enter the sealing box 46 through the first connecting pipe 43, and then be discharged from the dispersion holes 47 to contact the water inside the gas storage tank 42, so that the water can reduce the temperature of the gas, and the air discharged from the dispersion holes 47 will continuously enter the inside of the gas storage tank 42 to increase the air pressure inside the gas storage tank 42.

[0030] When the output end of the hydraulic support 1 moves upward, it will drive the synchronous disk 3 to move upward. The upward movement of the synchronous disk 3 will cause the synchronous disk 3 to no longer squeeze the protective cover 2. At this time, the gas inside the gas storage tank 42 will enter the inside of the protective cover 2 through the second connecting pipe 45, and thus can cool the hydraulic support 1 inside the protective cover 2.

[0031] The movement of the output end of the hydraulic support 1 is used to circulate the gas inside the protective cover 2. When circulating, the water inside the gas storage tank 42 is used to cool the gas, and at the same time, the humidity of the gas can also be increased, further improving the heat dissipation effect on the hydraulic support 1.

[0032] In an embodiment of the present utility model, as Figure 3 shown, the first connecting pipe 43 and the second connecting pipe 45 are located on the same straight line.

[0033] In an embodiment of the present utility model, as Figure 3 shown, one end of the second connecting pipe 45 is located at the upper part three - quarters of the gas storage tank 42.

[0034] It should be noted that the height of the water level inside the gas storage tank 42 should be kept at a certain distance from one end of the second connecting pipe 45 located in the gas storage tank 42 to avoid sucking water when the second connecting pipe 45 exhausts gas and causing the water to enter the protective cover 2.

[0035] In an embodiment of the present invention, as Figure 3 shown, the extrusion mechanism 48 includes a connection box 481, a sealing plate 482, a connecting rod 483, a connection disk 484 and a pulling spring 485. Among them, the connection box 481 is installed on the gas storage tank 42, and the connection box 481 communicates with the gas storage tank. The sealing plate 482 is hermetically slidable inside the connection box 481. The connecting rod 483 is installed on the sealing plate 482 and penetrates and slides inside the connection box 481. The connection disk 484 is installed at the top end of the connecting rod 483. One end of the pulling spring 485 is installed on the connection disk 484, and the other end of the pulling spring 485 is installed on the connection box 481.

[0036] Specifically, during the actual operation, the gas inside the protective cover 2 is extruded, so that the gas inside the protective cover 2 enters the gas storage tank 42. Then, the air pressure pushes the sealing plate 482 to move upward, increasing the accommodation space for air. Furthermore, when the extrusion of the protective cover 2 is lost, the pulling spring 485 pulls the connection disk 484, causing the connection disk 484 to drive the connecting rod 483 and the sealing plate 482 to move downward. Finally, the sealing plate 482 pushes the gas inside the connection box 481 into the gas storage tank 42.

[0037] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, a pressure gauge is installed on the top of the connection box 481.

[0038] It can be understood that the pressure gauge can check the air pressure inside the gas storage tank 42 when the hydraulic support is in the retracted state, avoiding the leakage of the protective cover 2 and causing insufficient air pressure inside the gas storage tank 42.

[0039] In summary, the suspended single hydraulic support for coal mine support in the embodiment of the present invention circulates the gas inside the protective cover by the movement of the output end of the hydraulic support. During the circulation, the water inside the gas storage tank is used to cool the gas, and at the same time, the humidity of the gas can be increased, further improving the heat dissipation effect of the hydraulic support.

[0040] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0041] In the description of this specification, descriptions with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0042] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A suspended single hydraulic prop for coal mine support, characterized in that: It includes hydraulic props, protective covers, synchronous discs and protective components, among which: The protective cover is sleeved on the telescopic end of the hydraulic support; The synchronous disc is mounted on the telescopic end of the hydraulic support, and the two ends of the protective cover are respectively connected to the synchronous disc and the hydraulic support; The protection assembly includes a mounting plate, an air storage box, a first connecting pipe, a first one-way valve, a second connecting pipe, a sealing box, a plurality of dispersion holes and an extrusion mechanism, wherein: The mounting plate is mounted on the hydraulic support; The air storage box is mounted on one end of the mounting plate; One end of the first connecting pipe is mounted on the air storage box, and the other end of the first connecting pipe is mounted on the protective cover; The first one-way valve is installed on the first connecting pipe; The two ends of the second connecting pipe are respectively mounted on the protective cover and the air storage box; The sealing box is installed on the inner wall of the air storage box, and the sealing box is connected to the first connecting pipe; A plurality of the dispersion holes are evenly arranged on the sealing box; The squeezing mechanism is mounted on the air storage box.

2. The suspended single hydraulic prop for coal mine support according to claim 1, characterized in that: The first connecting pipe and the second connecting pipe are located on the same straight line.

3. The suspended single hydraulic prop for coal mine support according to claim 1, characterized in that: One end of the second connecting pipe is located at the upper three quarters of the air storage box.

4. The suspended single hydraulic prop for coal mine support according to claim 1, characterized in that: The extrusion mechanism includes a connection box, a sealing plate, a connection rod, a connection disk and a pulling spring, wherein: The connection box is installed on the air storage box, and the connection box is connected to the air storage box; The sealing plate seals and slides in the connection box; The connecting rod is installed on the sealing plate, and the connecting rod penetrates and slides in the connecting box; The connecting plate is mounted on the top of the connecting rod; One end of the pulling spring is mounted on the connecting plate, and the other end of the pulling spring is mounted on the connecting box.

5. The suspended single hydraulic prop for coal mine support according to claim 4, characterized in that: A pressure gauge is installed on the top of the connection box.

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