Water-preserved coal mining supporting mechanism

Abstract

The utility model discloses a water-preserved coal mining supporting mechanism which comprises a supporting frame body, a plurality of connecting cross rods arranged at equal intervals are arranged on the inner side of the supporting frame body, two supporting columns are fixedly connected to the upper end faces of the connecting cross rods, and X-shaped supporting plates are connected to the upper end faces of the supporting columns. The upper end face of the X-shaped supporting plate is slidably connected with telescopic rods distributed in an array mode, and first springs are connected between the telescopic rods and the X-shaped supporting plate. The telescopic rod and the first spring are arranged in the supporting frame body, elastic deformation of the first spring can be used for buffering pressure of a top plate, supporting force is automatically adjusted to adapt to different top plate pressure environments, meanwhile, the X-shaped supporting plate moves under the pressure of the top plate to drive related parts to move, and the second spring is adjusted in a buffering mode. Linkage adjustment of the bottom structure according to the pressure change of the top plate is achieved, the stability of the supporting frame under the complex pressure condition is enhanced, the safety risk is reduced, and the safety and efficiency of coal mining work are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine support technical field, especially a kind of mechanism of water-preserved coal mining support. BACKGROUND

[0002] In the process of coal mining, the roof support of coal mining face is crucial. The traditional support mode has many deficiencies when facing complex and changeable geological conditions and roof pressure. For example, some support structures have poor stability, cannot effectively disperse the pressure from above, and when the roof pressure is too large, the support mechanism is easily damaged, thereby threatening the safe operation of coal mining work. Moreover, the traditional support mechanism cannot automatically adjust the supporting force according to the real-time changes of the roof pressure, lacks elastic buffering mechanism, and is difficult to adapt to dynamic pressure environment. In addition, in terms of adaptability of the bottom structure, the traditional design cannot be linked to adjust according to the changes of the roof pressure, resulting in weak response ability of the support frame as a whole to the changes of the roof pressure, affecting the stability of the coal mining space.

[0003] Therefore, we propose a mechanism of water-preserved coal mining support. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the utility model is to provide a mechanism of water-preserved coal mining support to prevent the support mechanism from being damaged due to insufficient stability of the support structure, threatening the safety of coal mining work; prevent the inability to automatically adjust the supporting force and lack of elastic buffering mechanism, thereby failing to adapt to dynamic pressure environment; prevent the instability of coal mining space due to poor adaptability of the bottom structure and weak response ability to changes of the roof pressure, thereby improving the safety, adaptability and stability of the roof support of coal mining face, and effectively solving the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A mechanism of water-preserved coal mining support, comprising a support frame body, a plurality of equally spaced connecting crossbars are arranged inside the support frame body, two supporting columns are fixedly connected to the upper end surface of each connecting crossbar, an X-shaped support plate is connected to the upper end surface of each supporting column, an array of telescopic rods is slidingly connected to the upper end surface of the X-shaped support plate, a first spring is connected between the telescopic rod and the X-shaped support plate, and a top block is connected between the top end of the telescopic rod and the support frame body.

[0007] The lower end surface of the support frame body is symmetrically provided with a U-shaped plate, the inner side surface of the X-shaped support plate is respectively rotationally connected with two first movable blocks, the outer side surface of the first movable block is provided with a first circular rod, the outer side surface of the first circular rod is slidably connected with a second circular rod, the outer side of the second circular rod is connected with a second movable block, the second movable block and the first circular rod are connected with a second spring, and the second spring is sleeved outside the second circular rod, and the U-shaped plate is rotationally connected with the second movable block.

[0008] When the support mechanism is used for supporting the roof of the coal mining face, the support frame body is placed at a suitable position, the connecting cross rod plays a role in connecting and strengthening the stability of the internal structure of the support frame body, and the support column supports the X-shaped support plate, which can disperse the pressure from above.

[0009] Under the action of the first spring, the telescopic rod can provide elastic support for the top of the support frame body, when the roof has pressure acting on the top of the support frame body, the top block transmits the pressure to the telescopic rod, the telescopic rod compresses the first spring, the elastic deformation of the first spring can buffer the roof pressure, prevent the support mechanism from being damaged due to instantaneous excessive pressure, and automatically adjust the supporting force according to the size of the roof pressure, so that the support is more stable.

[0010] When the X-shaped support plate is displaced due to the pressure of the roof, since the first movable block on the inner side surface of the X-shaped support plate is rotationally connected thereto, the first circular rod on the outer side surface of the first movable block will move, the first circular rod slides in the second circular rod, and the second movable block is rotationally connected with the U-shaped plate, the second spring plays a role in buffering and adjusting in this process, when the first circular rod slides in the second circular rod, the position of the second movable block is changed, the second spring is stretched or compressed, so that the whole bottom structure can be linked and adjusted according to the change of the roof pressure, and this linked adjustment can make the support frame body better adapt to the influence of the change of the roof pressure, so as to ensure the stability of the coal mining space.

[0011] Further, an L-shaped support seat is arranged inside the support frame body, one side of the L-shaped support seat is threadedly connected with two bolts, one end of the bolt penetrates through the L-shaped support seat and extends into the support frame body, and the lower end surface of the L-shaped support seat is fixedly connected with two first ground anchors.

[0012] By adopting the above technical scheme, when the L-shaped support seat needs to be installed, the bolt is screwed from one side of the L-shaped support seat, one end of the bolt penetrates through the L-shaped support seat and is inserted into the support frame body, and by tightening the bolt, the L-shaped support seat can be firmly fixed inside the support frame body, this connection mode is convenient to install and disassemble, and the position of the L-shaped support seat can be adjusted according to actual needs.

[0013] The first ground sinking nail installed at the lower end surface of the L-shaped support base plays a role of reinforcing the bottom of the support mechanism, when the support frame body is placed on the floor of the coal mining face, the first ground sinking nail will be inserted into the floor, in the process of coal mining, when the support frame body is subjected to pressure from the roof or other horizontal forces, the first ground sinking nail can increase the friction and anchoring force between the support mechanism and the floor, preventing the support frame body from sliding or shifting, for example, under the action of roof pressure, the support frame body has a tendency to move downward or horizontally, the first ground sinking nail, like an anchor, firmly holds the floor, ensuring the relative stability of the position of the support frame body, thereby providing a more reliable support environment for coal mining.

[0014] Further, the L-shaped support base is fixedly installed with a reinforcing rib on one side outer wall, both ends of the L-shaped support base are connected with side plates, the upper end surface of the side plate is slidably connected with a second ground sinking nail, and the upper end surface of the second ground sinking nail is fixedly connected with a roof plate.

[0015] By adopting the above technical scheme, the reinforcing rib is fixedly installed on one side outer wall of the L-shaped support base, which mainly plays a role of enhancing the structural strength of the L-shaped support base, in the process of coal mining, the support frame body will bear a huge pressure from the roof, which will be transmitted to the L-shaped support base through the connecting components, the reinforcing rib, like a skeletal support of the human body, disperses the pressure to a larger area through its structural characteristics, preventing the L-shaped support base from deforming or being damaged under the action of pressure, for example, when the roof pressure is concentrated on a certain point of the L-shaped support base, the reinforcing rib can conduct the pressure to the surrounding area, so that the entire L-shaped support base can bear a larger load;

[0016] The side plates at both ends of the L-shaped support base and the second ground sinking nail form an adjustable anchoring structure, the side plate plays a role of guiding and supporting the second ground sinking nail, the second ground sinking nail can be slidably connected on the upper end surface of the side plate, in the initial installation, the insertion depth and angle of the second ground sinking nail can be adjusted according to the actual conditions of the floor, such as hardness and slope, when it is necessary to reinforce the connection between the support mechanism and the floor, the second ground sinking nail is inserted into the floor, and the roof plate is fixed on the upper end surface of the second ground sinking nail, which can prevent the second ground sinking nail from being completely inserted into the floor, facilitating subsequent adjustment and pulling out, on the other hand, when the support frame body is subjected to force from the roof or other directions, the combined structure of the second ground sinking nail and the roof plate can provide additional anchoring force to prevent the movement of the support mechanism, further enhancing the stability of the entire support mechanism on the floor.

[0017] Further, the lower end surface of the connecting cross bar is symmetrically provided with first supporting plates, the inner side of the support frame body is symmetrically provided with second supporting plates, the first supporting plates and the second supporting plates are both provided with embedding grooves, and the embedding grooves are slidably connected with embedding plates.

[0018] By adopting the technical scheme, the first supporting plates are symmetrically distributed on the lower end surface of the connecting cross bar, and the second supporting plates are symmetrically distributed on the inner side of the supporting frame body, so that the force is uniformly distributed in the structure, and the stability of the whole supporting mechanism is ensured.

[0019] During installation, the embedded plates are inserted into the corresponding embedded grooves, so as to connect the first supporting plates and the second supporting plates, and the force can be effectively transmitted in this way, when the connecting cross bar is subjected to pressure from above, such as roof pressure, which is transmitted through supporting columns and the like, the force is transmitted to the supporting frame body through the first supporting plates, the embedded plates and the second supporting plates, the embedded plates can slide in the embedded grooves, and this feature allows the distance between the connecting cross bar and the supporting frame body to be adjusted within a certain range, so that when the supporting mechanism is subjected to uneven roof pressure or when some slight dimensional deviation occurs during installation, the embedded plates can slide in the embedded grooves, and the relative positions between the connecting cross bar and the supporting frame body are automatically adjusted, so that the connection between the components is still tight, and the pressure can be effectively transmitted and dispersed, and the structural integrity and stability of the whole supporting mechanism are maintained.

[0020] Further, a plurality of pipeline grooves are arranged at equal intervals on the outer side wall of the supporting frame body, and water guide pipes are installed in the pipeline grooves, and a plurality of evenly distributed water seepage holes are arranged on the water guide pipes.

[0021] By adopting the above technical scheme, in the process of water-preserved coal mining, there may be some underground water around the roadway, the pipeline grooves provided on the outer side wall of the supporting frame body provide installation space for the water guide pipes, the water guide pipes are installed in the pipeline grooves, and the main function of the water guide pipes is to guide water flow, when the surrounding underground water seeps to the vicinity of the supporting frame body, the water will contact the water guide pipes, and since a plurality of evenly distributed water seepage holes are arranged on the water guide pipes, the underground water will enter the water guide pipes through the water seepage holes, and the water entering the water guide pipes can be guided to the designated drainage area through the internal channels of the water guide pipes, so as to realize the dredging of the underground water, avoid the accumulation of a large amount of underground water in the coal mining face, and affect the normal progress of the coal mining work.

[0022] The water guide pipes orderly guide and discharge the water, avoid the erosion and damage of the underground water flowing in disorder to the supporting frame body, prolong the service life of the supporting mechanism, and ensure the stability and safety of the supporting mechanism in the process of coal mining.

[0023] Further, a plurality of pipeline grooves are arranged at equal intervals on the outer side wall of the supporting frame body, and water guide pipes are installed in the pipeline grooves, and a plurality of evenly distributed water seepage holes are arranged on the water guide pipes.

[0024] By adopting the technical scheme, after the water guide pipe collects underground water entering through the water seepage hole, the water needs to be discharged out of the range of the support frame body, at this time, the two side lower parts of the water guide pipe communicated with the drain pipes play a key role, when the water flows in the water guide pipe, due to the gravity and the characteristics of the water flow, the water flows to a lower position, and the drain pipes connected to the lower parts of the two sides of the water guide pipe provide a channel for the water to flow out, the ends of the two drain pipes away from the water guide pipe penetrate the support frame body and extend to the outside, so that the water in the water guide pipe can be smoothly discharged to the outside of the support frame body, and the design ensures the smoothness of the drainage, and avoids that the water accumulates too much in the water guide pipe and affects the normal water guiding function.

[0025] The water in the water guide pipe can be dispersed and discharged by adopting the mode that the two sides are provided with the drain pipes, compared with only one drain pipe, the two side drain pipes can more evenly disperse the water flow, reduce the drainage pressure of the single drain pipe, and improve the drainage efficiency, for example, when the water guide pipe collects a large amount of underground water, if there is only one drain pipe, the drainage may not be smooth, and the two drain pipes can work simultaneously to quickly discharge the water, prevent the water from accumulating inside or around the support frame body, reduce the influence on the coal mining work and the support structure, in addition, the dispersed drainage mode can also make the drainage more stable and reliable, even if one of the drain pipes is blocked or has other faults, the other drain pipe can still work to ensure a certain drainage capacity, ensure that the underground water can be treated in time and effectively in the coal mining process, and maintain the stability of the environment around the support frame body.

[0026] Compared with the prior art, the utility model has the advantages of:

[0027] (1) the utility model discloses a water conservation coal mining support mechanism, by setting up telescopic link and first spring in support frame body, when the roof has pressure effect on the top of support frame body, the top block transmits the pressure to telescopic link, telescopic link compresses first spring, and the elastic deformation of first spring can buffer roof pressure, prevents the support mechanism from being damaged due to instantaneous excessive pressure, more importantly, the structure can automatically adjust the supporting force according to the size of roof pressure, when the pressure increases, the compression amount of first spring increases, and the supporting force increases, when the pressure decreases, first spring rebounds, and the supporting force is adjusted accordingly, so that the support always maintains a stable state, and the adaptability to different roof pressure environments is greatly improved.

[0028] (2) The utility model discloses a mechanism of water conservation coal mining support, when X type support plate is displaced by roof pressure, first movable block of rotation connection drives first round bar movement, and first round bar slides in second round bar, and second movable block is rotationally connected with U type board, and second spring plays the buffering and the adjusting effect, in this process, the sliding of first round bar changes the position of second movable block, makes second spring stretch or compress, thereby realizes the linkage adjustment of whole bottom structure according to roof pressure change, and this linkage adjustment mechanism can make support frame body better adapt to the influence that roof pressure change brings, strengthens the stability of support frame under the complex pressure condition, provides reliable guarantee for coal mining workspace, effectively reduces the security risk that leads to the instability of support, improves the security and efficiency of coal mining work. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is structure schematic view of the mechanism of water conservation coal mining support of the utility model.

[0030] Figure 2 It is X type support plate structure schematic view of the mechanism of water conservation coal mining support of the utility model.

[0031] Figure 3 It is X type support plate plan view of the mechanism of water conservation coal mining support of the utility model.

[0032] Figure 4 It is the mechanism of water conservation coal mining support of the utility model Figure 1 It is the enlarged view of A place in the mechanism of water conservation coal mining support of the utility model.

[0033] Figure 5 It is L type support seat connecting structure schematic view of the mechanism of water conservation coal mining support of the utility model.

[0034] In the drawing: 1, support frame body;2, connecting cross bar;3, support column;4, X type support plate;5, telescopic rod;6, first spring;7, top block;8, U type board;9, first movable block;10, first round bar;11, second round bar;12, second movable block;13, second spring;14, L type support seat;15, bolt;16, first ground anchor;17, reinforcing rib;18, side plate;19, second ground anchor;20, roof;21, first support plate;22, second support plate;23, embedding groove;24, embedded plate;25, pipeline groove;26, water guide pipe;27, water seepage hole;28, drain pipe. DETAILED DESCRIPTION

[0035] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0036] In order to prevent the supporting mechanism from being damaged due to insufficient stability of the supporting structure, the safety of the coal mining work is threatened, the problem that the dynamic pressure environment cannot be adapted due to the inability to automatically adjust the supporting force and the lack of elastic buffer mechanism, the problem that the coal mining work space is unstable due to the poor adaptability of the bottom structure and the weak response ability to the change of the roof pressure, thereby improving the safety, adaptability and stability of the roof support of the coal mining work face, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 A water conservation coal mining supporting mechanism, comprising a supporting frame body 1, a plurality of equidistantly arranged connecting cross rods 2 are arranged on the inner side of the supporting frame body 1, two supporting columns 3 are fixedly connected to the upper end surfaces of the connecting cross rods 2, an X-shaped supporting plate 4 is connected to the upper end surfaces of the supporting columns 3, an array of telescopic rods 5 are slidingly connected to the upper end surfaces of the X-shaped supporting plate 4, a first spring 6 is connected between the telescopic rods 5 and the X-shaped supporting plate 4, and a top block 7 is connected between the top ends of the telescopic rods 5 and the supporting frame body 1.

[0037] A U-shaped plate 8 is symmetrically distributed on the lower end surface of the supporting frame body 1, two first movable blocks 9 are rotatably connected to the inner side surfaces of the X-shaped supporting plate 4, a first circular rod 10 is installed on the outer side surface of the first movable block 9, a second circular rod 11 is slidingly connected to the outer side surface of the first circular rod 10, a second movable block 12 is connected to the outer side of the second circular rod 11, a second spring 13 is connected between the second movable block 12 and the first circular rod 10, and the second spring 13 is sleeved on the outside of the second circular rod 11, and the U-shaped plate 8 is rotatably connected to the second movable block 12.

[0038] In use, when the supporting mechanism is used for roof support of the coal mining work face, the supporting frame body 1 is placed in a suitable position, the connecting cross rods 2 play a role in connecting and strengthening the stability of the internal structure of the supporting frame body 1, the supporting columns 3 support the X-shaped supporting plate 4, and the X-shaped supporting plate 4 can disperse the pressure from above.

[0039] The telescopic rods 5 can provide elastic support for the top of the supporting frame body 1 under the action of the first spring 6, when the roof has a pressure acting on the top of the supporting frame body 1, the top block 7 transmits the pressure to the telescopic rods 5, the telescopic rods 5 compress the first spring 6, the elastic deformation of the first spring 6 can buffer the roof pressure, prevent the supporting mechanism from being damaged due to instantaneous excessive pressure, and automatically adjust the supporting force according to the size of the roof pressure, so that the support is more stable.

[0040] When the X-shaped support plate 4 is displaced due to the pressure of the roof, the first round bar 10 on the outer side of the first movable block 9 is moved due to the rotation connection of the first movable block 9 on the inner side of the X-shaped support plate 4, the first round bar 10 slides in the second round bar 11, and the second movable block 12 is rotationally connected with the U-shaped plate 8, the second spring 13 plays a buffering and adjusting role in the process, when the first round bar 10 slides in the second round bar 11, the position of the second movable block 12 is changed, the second spring 13 is stretched or compressed, and the whole bottom structure can be linked and adjusted according to the change of the roof pressure, so that the support frame body 1 can better adapt to the influence of the change of the roof pressure, thereby ensuring the stability of the coal mining working space.

[0041] As shown in Figure 1 、 Figure 4 、 Figure 5 The utility model also includes, the inside of support frame body 1 is provided with L type support seat 14, one side of L type support seat 14 is connected with two bolts 15, and one end of bolt 15 penetrates L type support seat 14 and extends to the inside of support frame body 1, and the lower end surface of L type support seat 14 is fixedly connected with two first pit nails 16.

[0042] When using, when needing to install L type support seat 14, bolt 15 is screwed from one side of L type support seat 14, one end of bolt 15 penetrates L type support seat 14 and is inserted into support frame body 1, L type support seat 14 can be fixedly fixed in the inside of support frame body 1 by screwing bolt 15, and the connecting mode is convenient to install and disassemble, and the position of L type support seat 14 can be adjusted according to actual needs;

[0043] The first pit nail 16 installed at the lower end surface of the L-shaped support seat 14 plays a role of reinforcing the bottom of the support mechanism. When the support frame body 1 is placed on the floor of the coal mining working face, the first pit nail 16 will be inserted into the floor. During the coal mining process, when the support frame body 1 is subjected to pressure from the roof or other horizontal forces, the first pit nail 16 can increase the friction and anchoring force between the support mechanism and the floor, preventing the support frame body 1 from sliding or shifting. For example, under the action of the roof pressure, the support frame body 1 tends to move downward or horizontally, and the first pit nail 16 firmly grips the floor like an anchor, ensuring the relative stability of the position of the support frame body 1, thereby providing a more reliable support environment for coal mining.

[0044] As shown in Figure 1 、 Figure 4 、 Figure 5As shown, the utility model also includes, one side outer wall of L type support seat 14 is fixedly installed with reinforcing rib 17, both ends of L type support seat 14 are connected with side plate 18, the upper end surface of side plate 18 is slidably connected with second pit prop 19, the upper end surface of second pit prop 19 is fixedly connected with top plate 20.

[0045] In use, reinforcing rib 17 is fixedly installed in one side outer wall of L type support seat 14, and its main role is to enhance the structural strength of L type support seat 14, in the process of coal mining, support frame body 1 can bear the huge pressure from roof, and this pressure can be transmitted to L type support seat 14 through connecting component, and reinforcing rib 17, like the skeletal support of human body, disperses the pressure to a larger area through its structural characteristics, to prevent L type support seat 14 from deforming or damaging under the action of pressure, for example, when the roof pressure concentrates on a certain point of L type support seat 14, reinforcing rib 17 can conduct this part of pressure to the peripheral area, so that the whole L type support seat 14 can bear greater load;

[0046] The side plate 18 of both ends of L type support seat 14 and the second pit prop 19 form an adjustable anchoring structure, the side plate 18 plays a guiding and supporting role to the second pit prop 19, the second pit prop 19 can be slidably connected on the upper end surface of the side plate 18, in the initial installation, the insertion depth and angle of the second pit prop 19 can be adjusted according to the actual situation of the floor, such as hardness, slope, etc., when it is necessary to reinforce the connection between the support mechanism and the floor, the second pit prop 19 is inserted into the floor, and the top plate 20 is fixed on the upper end surface of the second pit prop 19, which can prevent the second pit prop 19 from being completely inserted into the floor, and facilitate subsequent adjustment and pulling out. On the other hand, when the support frame body 1 is subjected to force from the roof or other directions, the combined structure of the second pit prop 19 and the top plate 20 can provide additional anchoring force to prevent the movement of the support mechanism, further enhancing the stability of the whole support mechanism on the floor.

[0047] For example, Figure 1 As shown, the utility model also includes, the lower end surface of the connecting cross bar 2 is symmetrically distributed with the first branch plate 21, the inner side of the support frame body 1 is symmetrically distributed with the second branch plate 22, the first branch plate 21 and the second branch plate 22 are both provided with the embedded groove 23, and the embedded plate 24 is slidably connected in the embedded groove 23.

[0048] In use, the first branch plate 21 is symmetrically distributed on the lower end surface of the connecting cross bar 2, and the second branch plate 22 is symmetrically distributed on the inner side of the support frame body 1, and this symmetrical distribution design can make the force uniformly distributed in the structure, to ensure the stability of the whole support mechanism.

[0049] In the installation process, the embedded plate 24 is inserted into the corresponding embedded groove 23, so that the first supporting plate 21 and the second supporting plate 22 are connected, and the connection can effectively transmit force; when the connecting cross bar 2 is subjected to pressure from above, such as roof pressure, through supporting columns and the like, the force is transmitted to the support frame body 1 through the first supporting plate 21, the embedded plate 24 and the second supporting plate 22; the embedded plate 24 can slide in the embedded groove 23, and this feature allows the distance between the connecting cross bar 2 and the support frame body 1 to be adjusted within a certain range; for example, when the support mechanism is subjected to uneven roof pressure or when some slight dimensional deviation occurs during installation, the embedded plate 24 can slide in the embedded groove 23, automatically adjusting the relative position between the connecting cross bar 2 and the support frame body 1, so as to ensure that the connection between the various components is still tight and can effectively transmit and disperse pressure, maintaining the structural integrity and stability of the entire support mechanism.

[0050] As shown in Figure 1 The utility model also includes that the outer side wall of support frame body 1 is equipped with a plurality of equidistantly arranged pipeline grooves 25, water guide pipes 26 are installed in the pipeline grooves 25, and a plurality of evenly distributed water seepage holes 27 are arranged on the water guide pipes 26.

[0051] In use, in the process of water conservation coal mining, there may be some underground water around the roadway, and the pipeline grooves 25 provided on the outer side wall of the support frame body 1 provide installation space for the water guide pipes 26; the water guide pipes 26 are installed in the pipeline grooves 25, and the main function is to guide water flow; when the surrounding underground water seeps to the vicinity of the support frame body 1, the water will contact the water guide pipes 26; because a plurality of evenly distributed water seepage holes 27 are arranged on the water guide pipes 26, the underground water will enter the water guide pipes 26 through the water seepage holes 27; the water entering the water guide pipes 26 can be guided to the designated drainage area through the internal channel, so as to realize the dredging of underground water and avoid the accumulation of underground water in the coal mining working face, which affects the normal operation of coal mining;

[0052] The water guide pipes 26 can guide the water in an organized manner, avoid the erosion and damage of the support frame body 1 caused by the disordered flow of underground water, prolong the service life of the support mechanism, and ensure the stability and safety of the support mechanism in the process of coal mining.

[0053] As shown in Figure 1 The utility model also includes that the two sides of the water guide pipes 26 are communicated with drainage pipes 28, and the ends of the two drainage pipes 28 away from the water guide pipes 26 are penetrated through the support frame body 1 and extended to the outside.

[0054] In use, the water guide pipe 26 needs to discharge the groundwater collected through the water seepage hole 27 out of the scope of the support frame body 1, at this time, the two side lower part connected water discharge pipes 28 play a key role, when the water flows in the water guide pipe 26, due to the gravity and the characteristics of the water flow, it will flow to the lower position, and the water discharge pipe 28 is connected at the lower part of the two sides of the water guide pipe 26, which provides a channel for the water to flow out, and the ends of the two water discharge pipes 28 away from the water guide pipe 26 penetrate the support frame body 1 and extend to the outside, so that the water in the water guide pipe 26 can be smoothly discharged to the outside of the support frame body 1, and this design ensures the smoothness of the water discharge, and avoids the accumulation of too much water in the water guide pipe 26 to affect its normal water guiding function.

[0055] The water in the water guide pipe 26 can be dispersed and discharged by adopting the mode of arranging the water discharge pipes 28 on both sides, compared with arranging only one water discharge pipe 28, the two side water discharges can more evenly disperse the water flow, reduce the water discharge pressure of a single water discharge pipe 28, and improve the water discharge efficiency; for example, when the water guide pipe 26 collects a large amount of groundwater, if there is only one water discharge pipe 28, the water discharge may not be smooth, and the two water discharge pipes 28 can work simultaneously to quickly discharge the water, prevent the water from accumulating inside or around the support frame body 1, and reduce the influence on the coal mining work and the support structure, in addition, the dispersed water discharge mode can also make the water discharge more stable and reliable, even if one of the water discharge pipes 28 is blocked or fails, the other water discharge pipe 28 can still work to ensure a certain water discharge capacity, and ensure that the groundwater can be timely and effectively treated during the coal mining process, and maintain the stability of the environment around the support frame body 1.

[0056] It should be noted that the utility model is a water conservation coal mining support mechanism, the support frame body 1 is arranged at a suitable position of a coal mining working face, and the internal structure of the support frame body 1 is connected and stabilized by the connecting cross rod 2.

[0057] During installation, the embedded plate 24 is inserted into the embedded groove 23 of the first supporting plate 21 and the second supporting plate 22 to connect the two, and when force is applied, the force is transmitted to the support frame body 1 through the first supporting plate 21, the embedded plate 24 and the second supporting plate 22, and the embedded plate 24 can slide in the embedded groove 23 to adjust the distance between the connecting cross rod 2 and the support frame body 1, and adapt to the pressure and size deviation.

[0058] Supporting column 3 lifts X type support plate 4 to disperse the pressure above, telescopic rod 5 provides elastic support to the top of support frame body 1 by the force of first spring 6, when the top plate is pressed, top block 7 will transmit the pressure to telescopic rod 5, compress first spring 6, so as to buffer the pressure and automatically adjust the supporting force, X type support plate 4 is displaced by the pressure of the top plate, drives first movable block 9 and first round rod 10 to move, first round rod 10 slides in second round rod 11, second movable block 12 is rotatably connected with U type plate 8, second spring 13 plays a buffering and adjusting role, promotes the linkage of the bottom structure, adapts to the change of the pressure of the top plate;

[0059] L type support seat 14 is fixed in the inner side of support frame body 1 through two bolts 15, the position can be adjusted as required, two first ground nails 16 on the lower end surface of L type support seat 14 are inserted into the bottom plate, the friction force and anchoring force between the support mechanism and the bottom plate are enhanced, the support frame body 1 is prevented from sliding or displacement, and the structural strength of L type support seat 14 is enhanced, side plate 18 guides and supports second ground nail 19, the insertion depth and angle of second ground nail 19 can be adjusted according to the condition of the bottom plate during installation, top plate 20 prevents second ground nail 19 from being completely inserted into the bottom plate, and provides additional anchoring force;

[0060] When water is preserved during coal mining, underground water enters guide water pipe 26 through water seepage hole 27 on guide water pipe 26, and is guided to the designated drainage area by guide water pipe 26, so that water is prevented from accumulating in the working area and eroding support frame body 1, and the water in guide water pipe 26 is discharged out of support frame body 1 through two side lower communication drainage pipes 28, the two side drainage can disperse the water flow, improve the drainage efficiency, even if one side drainage pipe 28 fails, the other side can still maintain drainage, and the stable and reliable drainage is ensured.

[0061] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An apparatus for water retaining coal mining support, comprising a support frame body (1), characterized in that, The inside of the support frame body (1) is provided with a plurality of equidistantly arranged connecting cross bars (2), the upper end surfaces of the connecting cross bars (2) are all fixedly connected with two support columns (3), the upper end surfaces of the support columns (3) are connected with X-shaped support plates (4), the upper end surfaces of the X-shaped support plates (4) are slidingly connected with arrayed distribution telescopic rods (5), the first springs (6) are connected between the telescopic rods (5) and the X-shaped support plates (4), and the top ends of the telescopic rods (5) and the support frame body (1) are connected with top blocks (7). The lower end surfaces of the support frame body (1) are symmetrically distributed with U-shaped plates (8), the inner side surfaces of the X-shaped support plates (4) are respectively rotatably connected with two first movable blocks (9), the outer side surfaces of the first movable blocks (9) are provided with first circular rods (10), the outer side surfaces of the first circular rods (10) are slidingly connected with second circular rods (11), the outer sides of the second circular rods (11) are connected with second movable blocks (12), the second springs (13) are connected between the second movable blocks (12) and the first circular rods (10), the second springs (13) are sleeved outside the second circular rods (11), and the U-shaped plates (8) are rotatably connected with the second movable blocks (12).

2. A mechanism for water retaining coal mining support according to claim 1, characterised in that: The inside of the support frame body (1) is provided with an L-shaped support seat (14), one side of the L-shaped support seat (14) is threadedly connected with two bolts (15), one end of the bolt (15) penetrates through the L-shaped support seat (14) and extends into the support frame body (1), and the lower end surface of the L-shaped support seat (14) is fixedly connected with two first ground traps (16).

3. A mechanism for water retaining coal mining support according to claim 2, characterised in that: The outer wall of one side of the L-shaped support seat (14) is fixedly provided with a reinforcing rib (17), both ends of the L-shaped support seat (14) are connected with side plates (18), the upper end surfaces of the side plates (18) are slidingly clamped with second ground traps (19), and the upper end surfaces of the second ground traps (19) are fixedly connected with top plates (20).

4. A mechanism for water retaining coal mining support according to claim 1, characterized in that: The lower end surfaces of the connecting cross bars (2) are symmetrically distributed with first support plates (21), the inside of the support frame body (1) is symmetrically distributed with second support plates (22), the upper end surfaces of the first support plates (21) and the second support plates (22) are all provided with embedded grooves (23), and the embedded grooves (23) are slidingly clamped with embedded plates (24).

5. A mechanism for water retaining coal mining support according to claim 1, characterized in that: The outer side walls of the support frame body (1) are provided with a plurality of equidistantly arranged pipeline grooves (25), the pipeline grooves (25) are provided with water guide pipes (26), and the water guide pipes (26) are all provided with a plurality of uniformly distributed water seepage holes (27).

6. A mechanism for water retaining coal mining support according to claim 5, characterised in that: The lower parts of the two sides of the water guide pipe (26) are both communicated with drain pipes (28), and the ends, away from the water guide pipe (26), of the two drain pipes (28) both penetrate through the support frame body (1) and extend to the outside.

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