A hanging flexible membrane bag unit support for a gob-side entry retaining process

Abstract

A kind of along empty roadway technology is used to hang soft membrane bag unit support, including base, support column and top beam, first membrane hanging mechanism and second membrane hanging mechanism are arranged on the top beam, the first membrane hanging mechanism is unit support top beam membrane hanging mechanism, the second membrane hanging mechanism includes several long round steels, each long round steel is spaced left and right and is arranged on the top beam along front-back horizontal direction, clamping mechanism is arranged on the top beam, the clamping mechanism is used to clamp, loosen each long round steel, the front end of each long round steel exceeds the front end of the top beam by a length and is in cantilever state, the cantilever section of each long round steel is used to connect with the top front and back two sides of soft membrane bag, and then hang soft membrane bag.The utility model integrates support, hangs soft membrane bag function in one, can adapt to the demand along empty roadway technology, adopts long round steel and hangs soft membrane bag, can cancel the original anchor rod and fixes the mode of soft membrane bag, save time and labour, it is simple to operate.

Description

Technical Field

[0001] This utility model relates to the field of unit support technology, specifically, to a flexible membrane bag hanging unit support for the process of leaving a passageway. Background Technology

[0002] In coal mining, to conserve resources and reduce costs, some mines employ the goaf retention technique. This technique requires constructing a support wall along the side of the goaf roadway to isolate the goaf and support the roadway roof. Before pouring the support wall, flexible membrane bags need to be installed. Existing techniques typically use single hydraulic columns or anchor bolts for membrane installation. However, with single hydraulic columns, the weight and length of the columns make handling time-consuming and labor-intensive. In confined operating spaces, this can easily lead to collisions and injuries. Furthermore, the use of emulsion as a power source for the hydraulic columns poses a risk of high-pressure liquid splashing during lifting and lowering. Anchor bolt installation requires a single-arm drilling rig for anchor bolt installation, which is complex and carries the safety hazard of the rig tipping over. Additionally, the anchor bolts cannot be reused after installation, resulting in significant material waste and high construction costs.

[0003] Chinese utility model patent CN202321952213.5 discloses a unit support top beam hanging mechanism, which mainly consists of side support frames, support hooks, side jacks, and a linkage mechanism. This mechanism is mounted on the top beam of the unit support and its adaptation direction is adjusted by extending and retracting the side jacks and controlling the sliding of the support hooks. It has the advantages of high safety, strong adaptability, and reduced manual labor intensity. However, in actual use, this unit support top beam hanging mechanism still has some shortcomings: the support hooks can only hook and fix one side of the flexible film bag, and the other side of the flexible film bag still needs to be fixed with anchor rods, which is time-consuming and labor-intensive. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a flexible membrane bag unit support for the goaf retention process.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a flexible membrane bag hanging unit support for goaf retention process, comprising a base, a support column, and a top beam. The support column is fixed on the base, and the upper end of the support column is connected to the top beam. The top beam is provided with a first membrane hanging mechanism and a second membrane hanging mechanism. The first membrane hanging mechanism is the unit support top beam membrane hanging mechanism in Chinese utility model patent CN202321952213.5. The second membrane hanging mechanism comprises several long round steel bars, each of which is spaced apart horizontally and arranged on the top beam in a front-back horizontal direction. The top beam is provided with a clamping mechanism, which is used to clamp and release each of the long round steel bars. The front end of each long round steel bar extends beyond the front end of the top beam by a certain length and is in a cantilever state. The cantilever section of each long round steel bar is used to connect to the front and rear sides of the top of the flexible membrane bag, thereby suspending the flexible membrane bag.

[0006] Based on the above, the clamping mechanism includes a sliding block and a clamping jack. The sliding block is horizontally slidable along the left-right direction and is located on the rear side of the bottom of the top beam. The sliding block has at least two first elongated holes spaced apart horizontally and open front-back along the left-right direction. The top beam has several pins corresponding to and passing through each of the first elongated holes. The two ends of the clamping jack are hinged to the sliding block and the top beam, respectively. The top of the top beam has several elongated grooves spaced apart horizontally along the front-back direction, and each of the long round steel bars is correspondingly inserted into each of the elongated grooves. The top beam has several second elongated holes spaced horizontally and open vertically. Each second elongated hole corresponds vertically to the sliding block and is connected to each of the elongated grooves. The sliding block is provided with several clamping blocks that pass through each of the second elongated holes. The elongated round steel in the corresponding elongated groove is located between the corresponding elongated groove and the corresponding clamping block. The extension and retraction of the clamping jack can drive the sliding block to move left and right, thereby causing each clamping block to move left and right to clamp and release the corresponding elongated round steel.

[0007] This utility model has substantial features and advancements compared to existing technologies. Specifically, the top beam of the unit support of this utility model is equipped with two types of film hanging mechanisms: a first film hanging mechanism and a second film hanging mechanism. Different film hanging mechanisms can be flexibly selected according to the actual needs of the mine for hanging the flexible film bag, so that the unit support integrates the functions of support and hanging flexible film bags, which can adapt to the needs of the goaf retention process. Among them, the first film hanging mechanism is the unit support top beam hanging mechanism of Chinese utility model patent CN202321952213.5, which has strong adaptability. The second film hanging mechanism uses several long round steel bars to hang the flexible film bag. The top beam of the unit support is equipped with a clamping mechanism for clamping and releasing each of the long round steel bars. The top front and rear sides of the flexible film bag can be directly connected to the cantilever section of each of the long round steel bars, so that the flexible film bag can be suspended on each of the long round steel bars. The connection of the flexible film bag to the top can be achieved by raising and lowering the support column of the unit support, so as to facilitate the pouring. The original method of fixing the flexible film bag with anchor rods is eliminated, saving time and effort. After the flexible membrane bag is poured and forms a flexible membrane wall, the clamping mechanism is released from each of the long round steel bars, the supporting columns are lowered, and each of the long round steel bars is separated from the top beam. The unit bracket can be moved and adjusted quickly by a special transport vehicle, which is simple to operate.

[0008] In summary, this utility model integrates the functions of supporting and hanging flexible membrane bags, which can meet the needs of the goaf retention process. By using long round steel to hang the flexible membrane bags, the original method of fixing the flexible membrane bags with anchor rods can be eliminated, saving time and effort and simplifying the operation. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the usage state of this utility model.

[0010] Figure 2 This is an axial view of the top beam, the first film-attaching mechanism, and the second film-attaching mechanism of this utility model. Figure 1 .

[0011] Figure 3 This is an axial view of the top beam, the first film-attaching mechanism, and the second film-attaching mechanism of this utility model. Figure 2 .

[0012] Figure 4 This is a right-side view of the top beam, the first film-attaching mechanism, and the second film-attaching mechanism of this utility model.

[0013] In the diagram: 1. Base; 2. Support column; 3. Top beam; 4. Side support frame; 5. Support hook; 6. Side jack; 7. Outer connecting rod; 8. Inner connecting rod; 9. Long round steel; 10. Sliding block; 11. Clamping jack; 12. First long hole; 13. Pin; 14. Long groove; 15. Second long hole; 16. Clamping block; 17. Circular boss; 18. Locking block. Detailed Implementation

[0014] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0015] by Figure 1 The right side is the front side, and the direction facing the viewer is the right side.

[0016] like Figures 1-4 As shown, a flexible membrane bag hanging unit support for gob-side entry retention process includes a base 1, a supporting column 2, and a top beam 3. The supporting column 2 is fixed to the base 1 using an integral clamp structure. The upper end of the supporting column 2 is connected to the top beam 3. The top beam 3 is equipped with a first membrane hanging mechanism and a second membrane hanging mechanism. The first membrane hanging mechanism is the membrane hanging mechanism of the top beam 3 of the unit support in Chinese Utility Model Patent CN202321952213.5 (mainly composed of a side support frame 4, a support hook 5, a side jack 6, and a linkage mechanism). The lever mechanism includes an outer connecting rod 7 and an inner connecting rod 8 (the specific structure will not be described here). The second film hanging mechanism includes several long round steel bars 9. Each of the long round steel bars 9 is spaced apart from the left and right and arranged horizontally along the front and back direction on the top beam 3. The top beam 3 is provided with a clamping mechanism, which is used to clamp and release each of the long round steel bars 9. The front end of each of the long round steel bars 9 extends beyond the front end of the top beam 3 by a certain length and is in a cantilever state. The cantilever section of each of the long round steel bars 9 is used to connect with the front and back sides of the top of the flexible film bag, thereby suspending the flexible film bag.

[0017] Specifically, the clamping mechanism includes a sliding block 10 and a clamping jack 11. The sliding block 10 is horizontally slidable in the left-right direction and is located at the rear bottom of the top beam 3. The sliding block 10 has at least two first elongated holes 12 spaced apart in the left-right direction and open front-back. The top beam 3 has several pins 13 corresponding to and passing through each of the first elongated holes 12. The two ends of the clamping jack 11 are hinged to the sliding block 10 and the top beam 3, respectively. The top of the top beam 3 has several elongated grooves 14 spaced apart in the left-right direction, and each of the long round steel bars 9 is correspondingly inserted into each of the elongated grooves 14. The top beam 3 has several second elongated holes 15 that are spaced apart horizontally and open vertically. Each second elongated hole 15 corresponds vertically to the sliding block 10 and is connected to each of the elongated grooves 14. The sliding block 10 is provided with several clamping blocks 16 that pass through each of the second elongated holes 15. The long round steel 9 in the corresponding long groove 14 is located between the corresponding long groove 14 and the corresponding clamping block 16. The clamping jack 11 can extend and retract to drive the sliding block 10 to move left and right, thereby causing each of the clamping blocks 16 to move left and right to clamp and release the corresponding long round steel 9.

[0018] The cantilever section of the long round steel bar 9 is designed with two annular protrusions 17 for fixing the flexible membrane bag. Furthermore, another section of the long round steel bar 9 is designed with a matching locking block 18 embedded in the long groove 14 to prevent the long round steel bar 9 from swaying left and right within the long groove 14.

[0019] In specific use of this embodiment, different film hanging mechanisms can be selected according to the actual needs of the mine. When using the first film hanging mechanism, the flexible film bag is hung in accordance with the working principle of the unit support top beam 3 hanging mold mechanism in Chinese Utility Model Patent CN202321952213.5, which will not be elaborated here. When using the second type of membrane mounting mechanism, each of the long round steel bars 9 is placed in the corresponding long grooves 14. The sliding block 10 is moved left and right by the extension and retraction of the clamping jack 11, thereby clamping each of the long round steel bars 9 by the clamping blocks 16. Then, the top front and rear sides of the flexible membrane bag are connected to the cantilever section of each of the long round steel bars 9. The supporting column 2 of the unit bracket is then raised to hang the flexible membrane bag to the top. After the flexible membrane bag is poured and left to stand to form a flexible membrane wall, the clamping jack 11 is reset, causing each of the clamping blocks 16 to release each of the long round steel bars 9. The supporting column 2 is lowered, and the top beam 3 is lowered and separated from each of the long round steel bars 9. The unit bracket can be moved and adjusted quickly by a special transport vehicle. The whole process is simple to operate, eliminating the original method of fixing the flexible membrane bag with anchor rods, saving time and effort. Once the flexible membrane wall is formed, each long round steel bar 9 remains at the top of the flexible membrane wall. When it is necessary to hang the flexible membrane bag again, a new long round steel bar 9 can be used.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A flexible membrane bag hanging unit support for a gob-side retaining process, comprising a base, a supporting column, and a top beam, wherein the supporting column is fixed on the base, and the upper end of the supporting column is connected to the top beam, characterized in that: The top beam is equipped with a first film-hanging mechanism and a second film-hanging mechanism. The first film-hanging mechanism is a unit support top beam film-hanging mechanism. The second film-hanging mechanism includes several long round steel bars, each of which is spaced apart horizontally and arranged on the top beam. The top beam is equipped with a clamping mechanism for clamping and releasing each of the long round steel bars. The front end of each long round steel bar extends beyond the front end of the top beam by a certain length and is in a cantilever state. The cantilever section of each long round steel bar is used to connect to the front and rear sides of the top of the flexible film bag, thereby suspending the flexible film bag.

2. The soft membrane bag unit support for the gob- side entry retaining process according to claim 1, characterized in that: The clamping mechanism includes a sliding block and a clamping jack. The sliding block is horizontally slidable along the left-right direction and is located on the rear side of the bottom of the top beam. The sliding block has at least two first elongated holes spaced apart horizontally and open front-back along the left-right direction. The top beam has several pins corresponding to and passing through each of the first elongated holes. The two ends of the clamping jack are hinged to the sliding block and the top beam, respectively. The top of the top beam has several elongated grooves spaced apart horizontally along the front-back direction, and each of the long round steel bars is inserted into one of the corresponding elongated grooves. The beam has several second elongated holes spaced horizontally and open vertically. Each second elongated hole corresponds vertically to the sliding block and is connected to each of the elongated grooves. The sliding block is provided with several clamping blocks that pass through each of the second elongated holes. The elongated round steel in the corresponding elongated groove is located between the corresponding elongated groove and the corresponding clamping block. The extension and retraction of the clamping jack can drive the sliding block to move left and right, thereby causing each clamping block to move left and right to clamp and release the corresponding elongated round steel.

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