Universal buffer connection device for mining horizontal tunnel man-car

Abstract

The utility model discloses a universal buffer connection device for a man-vehicle in a mine tunnel, which belongs to the technical field of mechanical connection. The device comprises connecting pieces arranged opposite to each other on two sides, an outer wall between the connecting pieces on the two sides is connected with a connecting pipe, the interiors of the connecting pipes on the two sides are telescopically connected with sliding rods, the ends of the sliding rods on the two sides are inserted into the interiors of the connecting pipes on the two sides and are fixedly connected with second piston plates, the sliding rods on the two sides move toward the interiors of the connecting pipes on the two sides respectively, and the air inside the connecting pipe can be pushed through the first piston plate to increase the pressure, and the contraction of the buffer spring can increase the buffer effect, and a third pressure relief valve is arranged, when the pressure inside the connecting pipe exceeds a preset threshold value of the third pressure relief valve, the third pressure relief valve is opened to slowly discharge the pressure outwards, thereby preventing the connecting pipe from exploding.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical connection, in particular to a universal buffer connection device for a man-car in a mine tunnel. Background Art

[0002] Man-carriage is an important tool for transporting people in coal mines. It can also be used in metal and non-metal mines. There are two types of man-carriage: horizontal man-carriage and inclined man-carriage. Inclined man-carriage is divided into two types according to the different braking methods: claw-type inclined man-carriage and rail-holding inclined man-carriage. The horizontal man-carriage is an important tool for transporting people in coal mines. It belongs to rail transportation equipment and is suitable for underground horizontal tunnels or flat lines with a slope of no more than 15‰. It is usually pulled by an electric locomotive. It can be used as a single vehicle, or multiple vehicles can be combined into a train with a three-ring chain.

[0003] A buffer connection device is required between multiple carriages of a flat-lane passenger car. For example, Chinese invention patent CN109611444A discloses a split universal vibration-damping buffer connection device. By adopting a split design, this design scheme can facilitate the independent operation of the traction device and the load device, and can meet the docking work of the traction device and the load device under different working conditions, while improving the assembly and maintenance efficiency of the structural parts; the present technical scheme designs a vibration-damping buffer device to maximize the absorption of vibration interference between the two devices during the process of the active device pulling the passive device; at the same time, under braking, the impact of the inertia force of the passive device with a larger load on the active device is reduced; the present technical scheme adopts a universal joint design method to maximize the adaptation to various working conditions when the active device is pulling the passive device, such as bumpy roads, climbing, turning and other complex road conditions; the present technical scheme adopts A customized threaded connection method is provided. Except for the universal swept end faces of the male and female ball rods, the threaded holes and other assembly methods can be customized on the other five faces according to customer requirements. The technical solution also provides positioning connection holes on the surfaces of the female ball rod and the male ball rod. In this way, after the female ball rod and the male ball rod are threaded together, the positioning connection holes on the two rods can be connected in series in sequence by using flexible objects such as wire ropes, which has the beneficial technical effect of preventing the female ball rod and the male ball rod from accidentally loosening or detaching during use, thereby improving the safety and stability performance. The technical solution also provides a plurality of assembly operation holes symmetrically on the surface of the protective plate, which can facilitate the rotation operation when the first limit sleeve is installed in the left shell body or the second limit sleeve is installed in the right shell body, especially when the limit sleeve is about to completely enter the corresponding shell body, which is convenient for the worker to further tighten the operation, thereby improving the beneficial technical effect of assembly convenience.

[0004] The above-mentioned prior art is convenient for installation and operation and realizes a buffering effect, but the buffering is only performed by compressing the spring. However, the spring is easily damaged after a long period of expansion and contraction, and the buffering force is insufficient. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A universal buffer connection device for a man-vehicle in a mine tunnel comprises connecting pieces arranged opposite to each other on two sides, a connecting pipe is connected to the outer wall between the connecting pieces on both sides, sliding rods are telescopically connected to the inside of the connecting pipes on both sides, the ends of the sliding rods on both sides are inserted into the inside of the connecting pipes on both sides and are fixedly connected to a second piston plate, the sliding rods on both sides move respectively toward the inside of the connecting pipes on both sides, and the air inside the connecting pipes can be pushed through the first piston plate to increase the pressure.

[0008] Preferably, a buffer spring is detachably connected to one end of the connecting tubes on both sides away from the first piston plate.

[0009] Preferably, the end of the sliding rod on one side is fixedly connected to a connecting ball head, and the end of the sliding rod on the other side is fixedly connected to a connecting head slidably connected to the connecting ball head, and the connecting head can move freely on the outer wall of the connecting ball head.

[0010] Preferably, the outer wall of the connecting pipe away from the first piston plate is detachably connected with a third pressure relief valve and an air intake check valve. When the pressure inside the connecting pipe exceeds a preset threshold of the third pressure relief valve, the third pressure relief valve opens to slowly discharge pressure outward.

[0011] Preferably, the end of the buffer spring close to the second piston plate is connected to the first piston plate, and there is a gap between the first piston plate and the second piston plate. The outer walls of the connecting tubes on both sides close to the gap are connected to connecting hoses, and each connecting hose is connected to the third pressure relief valve on the connecting tube on the other side. When the sliding rod on one side contracts toward the inside of the connecting tube, a higher pressure is passed through the connecting hose through the third pressure relief valve into between the first piston plate and the second piston plate of the connecting tube on the other side, thereby pushing the first piston plate on the other side to move toward the buffer spring and compress the air.

[0012] Preferably, a first pressure relief valve is detachably connected to the connecting hose, and the first pressure relief valve opens to slowly discharge pressure after the pressure inside the connecting hose reaches a threshold.

[0013] Preferably, the outer walls of the connecting tubes on both sides when the second piston plate is not contracted are detachably connected with an air outlet one-way valve, and a second pressure relief valve is installed on the outer wall of each connecting tube near the center. When the connecting hose transmits the pressure of the connecting tube on one side to the inside of the connecting tube on the other side, the excessive pressure between the first piston plate and the second piston plate is discharged through the second pressure relief valve, and after the second piston plate moves inward, the gas that subsequently enters the inside of the connecting tube on the other side is discharged outward through the air outlet one-way valve.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The sliding rods on both sides are respectively moved toward the inside of the connecting pipes on both sides, and the air inside the connecting pipes can be pushed by the first piston plate to increase the pressure, and the contraction of the buffer spring can increase the buffer effect.

[0016] 2. By setting up the third pressure relief valve, when the pressure inside the connecting pipe exceeds the preset threshold of the third pressure relief valve, the third pressure relief valve opens to slowly discharge the pressure outward, thereby preventing the connecting pipe from bursting. The slow pressure relief method can prevent the sliding rod from moving too quickly into the connecting pipe during pressure relief, resulting in excessive contraction stroke of the buffer spring and causing damage.

[0017] 3. Through the setting of the connecting hose, when the sliding rod on one side contracts toward the inside of the connecting pipe, the higher pressure is passed through the connecting hose through the third pressure relief valve into between the first piston plate and the second piston plate of the connecting pipe on the other side, thereby pushing the first piston plate on the other side to move toward the buffer spring and compressing the air, so that the buffer springs on both sides can participate in the buffering at the same time, and the buffering effect is better. Moreover, through the air intake check valve, the outside air can enter the inside of the connecting pipe when the first piston plate and the buffer spring are reset.

[0018] 4. The first pressure relief valve is opened to slowly discharge the pressure after the pressure inside the connecting hose reaches a threshold value. When the connecting hose transmits the pressure of the connecting pipe on one side to the inside of the connecting pipe on the other side, the excessive pressure between the first piston plate and the second piston plate is discharged through the second pressure relief valve, and after the second piston plate moves inward, the gas that subsequently enters the inside of the connecting pipe on the other side is discharged outward through the exhaust one-way valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the universal buffer connection device for a mine-use man-car in the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the connector and the connecting ball head in the utility model;

[0021] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a schematic diagram of the structure of the connecting hose and the first pressure relief valve in the utility model;

[0023] Figure 5 For the utility model Figure 4 Enlarged structural diagram at B in the middle.

[0024] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0025] 100. Connectors;

[0026] 200, connecting pipe; 201, connecting head; 202, connecting ball head; 203, buffer spring; 204, first piston plate; 205, second piston plate; 206, connecting hose; 207, first pressure relief valve; 208, outlet check valve; 209, second pressure relief valve; 210, inlet check valve; 211, third pressure relief valve; 212, sliding rod. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0030] like Figure 1 As shown, it is a schematic structural diagram of a universal buffer connection device for a mine tunnel man-carriage in a preferred embodiment of the utility model. The universal buffer connection device for a mine tunnel man-carriage in this embodiment comprises two relatively arranged connecting members 100, and connecting pipes 200 are connected to the opposite surfaces of the connecting members 100 on both sides, and the connecting pipes 200 on both sides are telescopically connected. In this embodiment, the telescopic connection of the connecting pipes 200 on both sides can buffer the space between two adjacent carriages when the mine tunnel man-carriage is in use.

[0031] like Figure 2 as well as Figure 3As shown, it is a connector and a connecting ball head in this embodiment and Figure 2 The enlarged structural schematic diagram at point A in the middle shows that the internal connecting tubes 200 on both sides are telescopically connected with sliding rods 212, the end of the sliding rod 212 on one side is fixedly connected with a connecting ball head 202, and the end of the sliding rod 212 on the other side is fixedly connected with a connecting head 201 slidably connected to the connecting ball head 202, and the connecting head 201 can move freely on the outer wall of the connecting ball head 202, and the ends of the sliding rods 212 on both sides are inserted into the connecting tubes 200 on both sides and are fixedly connected with a second piston plate 205, and the ends of the connecting tubes 200 on both sides away from the first piston plate 204 are detachably connected with a buffer spring 203. In this embodiment, the sliding rods 212 on both sides move toward the interior of the connecting tubes 200 on both sides respectively, and the air inside the connecting tubes 200 can be pushed through the first piston plate 204 to increase the pressure, and the contraction of the buffer spring 203 can increase the buffering effect.

[0032] like Figure 3 , Figure 4 as well as Figure 5 As shown, it is in this embodiment Figure 2 Enlarge the A in the middle, connect the hose and Figure 4 In the enlarged structural diagram at point B, the outer wall of the connecting pipe 200 away from the first piston plate 204 is detachably connected with a third pressure relief valve 211 and an intake check valve 210. In this embodiment, when the pressure inside the connecting pipe 200 exceeds the preset threshold of the third pressure relief valve 211, the third pressure relief valve 211 opens to slowly discharge pressure outward, thereby preventing the connecting pipe 200 from exploding, and the slow pressure relief method can prevent the sliding rod 212 from moving too quickly into the connecting pipe 200 during pressure relief, resulting in excessive contraction stroke of the buffer spring 203 and causing damage.

[0033] like Figure 3 , Figure 4 as well as Figure 5 As shown, one end of the buffer spring 203 close to the second piston plate 205 is connected to the first piston plate 204, and there is a gap between the first piston plate 204 and the second piston plate 205. The outer walls of the connecting pipes 200 on both sides close to the gap are connected to connecting hoses 206, and each connecting hose 206 is connected to the third pressure relief valve 211 on the connecting pipe 200 on the other side. In this embodiment, when the sliding rod 212 on one side contracts toward the inside of the connecting pipe 200, a higher pressure is passed through the connecting hose 206 through the third pressure relief valve 211 into the space between the first piston plate 204 and the second piston plate 205 of the connecting pipe 200 on the other side, thereby pushing the first piston plate 204 on the other side to move toward the buffer spring 203 and compress the air, so that the buffer springs 203 on both sides can participate in the buffering at the same time, and the buffering effect is better. In addition, through the intake check valve 210, external air can enter the inside of the connecting pipe 200 when the first piston plate 204 and the buffer spring 203 are reset.

[0034] like Figure 4 As shown, in order to prevent the pressure inside the connecting hose 206 from being too high, in this embodiment, a first pressure relief valve 207 is detachably connected to the connecting hose 206. The first pressure relief valve 207 opens to slowly release the pressure after the pressure inside the connecting hose 206 reaches a threshold.

[0035] like Figure 5 As shown, the outer walls of the connecting pipes 200 on both sides when the second piston plate 205 is not contracted are detachably connected with an air outlet one-way valve 208, and the outer wall of each connecting pipe 200 near the center is installed with a second pressure relief valve 209. In this embodiment, when the connecting hose 206 transmits the pressure of the connecting pipe 200 on one side to the inside of the connecting pipe 200 on the other side, the excessive pressure between the first piston plate 204 and the second piston plate 205 is discharged through the second pressure relief valve 209, and after the second piston plate 205 moves inward, the gas that subsequently enters the inside of the connecting pipe 200 on the other side is discharged outward through the air outlet one-way valve 208.

[0036] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A universal buffer connection device for a mine tunnel man-car, comprising connecting pieces (100) arranged opposite to each other on two sides, the outer wall between the connecting pieces (100) on both sides is connected with a connecting pipe (200), and the interior of the connecting pipes (200) on both sides is telescopically connected with a sliding rod (212), characterized in that: The ends of the sliding rods (212) on both sides inserted into the connecting pipes (200) on both sides are fixedly connected to the second piston plates (205). The sliding rods (212) on both sides move toward the inside of the connecting pipes (200) on both sides respectively, and can push the air inside the connecting pipes (200) through the first piston plates (204) to increase the pressure.

2. The universal buffer connection device for man-car in a mine tunnel according to claim 1 is characterized in that: A buffer spring (203) is detachably connected to one end of the connecting tubes (200) on both sides that is away from the first piston plate (204).

3. The universal buffer connection device for man-car in a mine tunnel according to claim 2 is characterized in that: The end of the sliding rod (212) on one side is fixedly connected to a connecting ball head (202), and the end of the sliding rod (212) on the other side is fixedly connected to a connecting head (201) slidably connected to the connecting ball head (202), and the connecting head (201) can move freely on the outer wall of the connecting ball head (202).

4. The universal buffer connection device for man-car in a mine tunnel according to claim 3 is characterized in that: The outer wall of the connecting pipe (200) away from the first piston plate (204) is detachably connected to a third pressure relief valve (211) and an air intake check valve (210); when the pressure inside the connecting pipe (200) exceeds a preset threshold of the third pressure relief valve (211), the third pressure relief valve (211) opens to slowly discharge pressure outwards.

5. The universal buffer connection device for man-car in a mine tunnel according to claim 4 is characterized in that: One end of the buffer spring (203) close to the second piston plate (205) is connected to the first piston plate (204), a gap exists between the first piston plate (204) and the second piston plate (205), and the outer walls of the connecting pipes (200) on both sides close to the gap are connected to connecting hoses (206), and each connecting hose (206) is connected to the third pressure relief valve (211) on the connecting pipe (200) on the other side. When the sliding rod (212) on one side contracts toward the inside of the connecting pipe (200), a higher pressure is introduced into the space between the first piston plate (204) and the second piston plate (205) of the connecting pipe (200) on the other side through the connecting hose (206) through the third pressure relief valve (211), thereby pushing the first piston plate (204) on the other side to move toward the buffer spring (203) and compress the air.

6. The universal buffer connection device for man-car in a mine tunnel according to claim 5 is characterized in that: A first pressure relief valve (207) is detachably connected to the connecting hose (206), and the first pressure relief valve (207) opens to slowly release pressure after the pressure inside the connecting hose (206) reaches a threshold.

7. The universal buffer connection device for man-car in a mine tunnel according to claim 6 is characterized in that: The outer walls of the connecting pipes (200) on both sides when the second piston plate (205) is not contracted are detachably connected with an air outlet one-way valve (208), and the outer wall of each connecting pipe (200) near the center is installed with a second pressure relief valve (209). When the connecting hose (206) transmits the pressure of the connecting pipe (200) on one side to the inside of the connecting pipe (200) on the other side, the excessive pressure between the first piston plate (204) and the second piston plate (205) is discharged through the second pressure relief valve (209), and after the second piston plate (205) moves inward, the gas that subsequently enters the inside of the connecting pipe (200) on the other side is discharged outward through the air outlet one-way valve (208).

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