Anti-loose grouting head connector for coal mine grouting

Abstract

The utility model discloses an anti-loose grouting head connector for coal mine grouting, and relates to the technical field of connectors, the anti-loose grouting head connector comprises a connector main body, a bearing frame and fixing blocks, the bottom end of the connector main body is fixedly provided with the bearing frame, and the two sides of the top end of the bearing frame are fixedly provided with the fixing blocks; supporting assemblies are arranged at the top ends of the fixing blocks, and connecting holes are formed in the two sides of the connector body. When the coal mine grouting pipe connector is connected, the coal mine grouting pipe connector is inserted into the connector body, primary sealing is achieved through the connecting holes, then the two connecting locking plates close to each other are attached to the outer wall of the grouting pipe connector, clamping of the connector can be achieved, and the connecting stability is remarkably enhanced; compared with traditional threaded connection or buckle connection, the mechanical clamping mode is firmer, connection looseness caused by vibration, pressure changes and other factors in the grouting process can be effectively prevented, and smooth circulation of grouting slurry is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to an anti-loosening grouting head connector for coal mine grouting. Background Technology

[0002] In coal mine engineering, grouting technology is a crucial technology, mainly used to reinforce rock strata, seal fissures, and improve mine stability. During the grouting process, the connector of the grouting head plays a key role in connecting the grouting pipe and ensuring the smooth delivery of grout. However, traditional grouting head connectors have some obvious problems in use, especially loosening and poor sealing. These problems seriously affect the grouting effect and mine safety.

[0003] CN217558385U discloses a grouting joint connection device for coal mine grouting, including a grouting guiding mechanism, a fixing limiting mechanism, and a connecting grout discharge mechanism. An external threaded cylinder is provided at the end of the outer limiting screw cylinder away from the bearing bottom cylinder. A fixing limiting mechanism is engaged with the outer wall of the connecting external threaded cylinder near its edge. Both ends of the arc-shaped positioning part are connected to the first movable clamping part and the second movable clamping part by hinges. The opening ends of both the first and second movable clamping parts are provided with limiting protrusions. A positioning bolt is inserted into the inner cavity of the limiting protrusion. The outer side of the threaded inner tube is screwed into the inner cavity of the connecting external threaded cylinder, and a fixing limiting mechanism is engaged with the bottom end of the grout discharge pipe near its edge. This device facilitates quick and easy connection of the grout discharge pipe and also provides a certain limiting and fixing function during connection, preventing the grout discharge pipe from falling off during grouting. The grouting volume and efficiency can be controlled and adjusted by using the distance advanced by the flow-blocking baffle.

[0004] When using the aforementioned existing technology, connecting the grouting connector requires first rotating the thread and then using the cooperation of the arc-shaped positioning part and two clamping parts to connect the grouting pipe connector. The overall operation is cumbersome and inefficient. In emergency situations or situations requiring rapid connection, this complex connection method may not meet the needs. Furthermore, during the coal mine grouting process, the grouting fluid impacts the inner wall of the grouting pipe, which can easily cause the connection to loosen, thereby affecting the stability and firmness of the connection and leading to loosening. Therefore, corresponding improvements are needed. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-loosening grouting head connector for coal mine grouting, so as to solve the problems mentioned in the background art, where the existing grouting head connectors for coal mine grouting have a cumbersome connection method and lack grouting pipe support, resulting in unstable grouting in the later stage.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grouting head connector for coal mine grouting, comprising a connector body, a support frame, and a fixing block, wherein the support frame is fixed at the bottom end of the connector body, and fixing blocks are fixed on both sides of the top end of the support frame;

[0007] Each of the fixed blocks has a support component at its top, and each of the connector bodies has a connection hole on both sides, with a sealing ring connected inside each connection hole. Each of the connector bodies has a power box slidably connected to both sides of its top, and the connector bodies between the power boxes are provided with a rotating mechanism. Each power box is provided with a connection locking mechanism.

[0008] Preferably, the supporting component includes a bottom support frame fixed to the top of the fixing block, and a top limiting frame is provided at the top of the bottom support frame, and a fixing bolt is connected between the bottom support frame and the top limiting frame.

[0009] Preferably, both the bottom support frame and the top limiting frame have V-shaped cross sections, and both sides of the bottom support frame and the top limiting frame are provided with fixing plates, and the fixing bolts are connected to the fixing plates between the bottom support frame and the top limiting frame.

[0010] Preferably, each of the power boxes has a threaded hole on one side and a rectangular movable groove on the bottom.

[0011] Preferably, the rotating mechanism includes a support frame, which is fixed to the top of the connector body. The support frame is internally connected to a rotating shaft, and a rotating disk is fixed to one end of the rotating shaft. A fixing pin is connected to one side of the rotating disk, and one end of the fixing pin extends into the support frame. A main gear is fixed to one end of the rotating shaft, and a driven gear meshes with one side of the main gear. A bidirectional lead screw passes through the driven gear.

[0012] Preferably, the two ends of the bidirectional lead screw are provided with external threads in opposite directions, and the threaded holes are provided with internal thread grooves. The bidirectional lead screw and the power box form a threaded connection.

[0013] Preferably, the connecting locking mechanism includes a drive cavity, which is located inside the power box. A bidirectional threaded rod is connected inside the drive cavity, and threaded blocks are threaded to both ends of the bidirectional threaded rod. A guide component is connected to one side of the threaded block. One end of the bidirectional threaded rod extends to the outside of the power box and is connected to a rotating disk. A positioning pin is connected to the outside of the rotating disk, and one end of the positioning pin extends into the inside of the power box.

[0014] The guide assembly includes a limiting post and a limiting block. The limiting block is disposed on one side of the threaded block, and the limiting post runs through the inside of the limiting block and is disposed inside the drive cavity.

[0015] Preferably, each of the threaded blocks has a connecting locking plate fixed at its bottom end, and each connecting locking plate has a notch on one side, with a sealing rubber plate connected inside the notch.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the anti-loosening grouting head connector for coal mine grouting can not only make an effective and firm connection and prevent the connection from becoming loose, but also has the effect of supporting the grouting pipe, further improving the tightness of the connection;

[0017] When connecting the grouting pipe connector in a coal mine, insert it into the connector body and use the connection hole to achieve a preliminary seal. Then, use two close-to-each-other locking plates to fit against the outer wall of the grouting pipe connector to clamp the connector, which significantly enhances the stability of the connection. The mechanical clamping method is more secure than the traditional threaded or snap-fit ​​connection, and can effectively prevent the connection from loosening due to factors such as vibration and pressure changes during grouting, ensuring the smooth flow of grout. With the help of the sealing rubber plate, a further seal can be achieved to prevent the grout from leaking from the gaps.

[0018] By rotating the rotating shaft, the main gear rotates. Under the meshing action of the main gear and the driven gear, the driven gear and the double-acting screw can rotate. By using the threaded connection between the double-acting screw and the threaded hole, the two power boxes can move laterally. This allows the position of the connecting locking plate to be adjusted, thereby changing the connection clamping point of the grouting pipe connector. On the one hand, this can optimize the clamping effect, that is, enhance the connection stability, and meet the connection clamping requirements of different connectors.

[0019] By using a fixing block to set up a bottom support frame on the support frame, the connected grouting pipe can be supported at the bottom. Combined with the top limiting frame and fixing bolts, the position of the grouting pipe is limited, ensuring the stability of the grouting pipe during the connection process and preventing the grouting pipe from loosening or falling off due to factors such as vibration and pressure changes. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a partial cross-sectional view of the main structure of this utility model;

[0022] Figure 2 This is a partial sectional view of the structure of this utility model from the side.

[0023] Figure 3 This is a three-dimensional structural diagram of the connecting and locking mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the main structure of this utility model;

[0025] Figure 5 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle;

[0026] Figure 6 This is a three-dimensional structural diagram of the connecting locking plate of this utility model.

[0027] The reference numerals in the figure are as follows: 1. Connector body; 101. Connecting hole; 102. Sealing ring; 2. Support bracket; 3. Fixing block; 4. Bottom support bracket; 5. Top limiting bracket; 6. Fixing bolt; 7. Power box; 701. Threaded hole; 702. Movable groove; 8. Rotating mechanism; 801. Support frame; 802. Rotating shaft; 803. Rotating disk; 804. Fixing pin; 805. Main gear; 806. Driven gear; 807. Double-acting screw; 9. Connecting locking mechanism; 901. Drive cavity; 902. Double-acting threaded rod; 903. Threaded block; 904. Connecting locking plate; 905. Guide assembly; 906. Rotating disk; 907. Positioning pin; 908. Sealing plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Please see Figures 1-6 The present invention provides the following technical solution: Example 1

[0030] To address the problem that existing anti-loosening grouting head connectors for coal mine grouting suffer from limited functionality and lack of support, leading to unstable grout delivery, the following technical solution is disclosed: An anti-loosening grouting head connector for coal mine grouting includes a connector body 1, a support frame 2, and fixing blocks 3. The support frame 2 is fixed to the bottom of the connector body 1, and fixing blocks 3 are fixed to both sides of the top of the support frame 2. Each fixing block 3 has a supporting component at its top, including a bottom support frame 4 fixed to the top of the fixing block 3, and a top limiting frame 5 at the top of the bottom support frame 4. Fixing bolts 6 connect the bottom support frame 4 and the top limiting frame 5. Both the bottom support frame 4 and the top limiting frame 5 have V-shaped cross-sections. Fixing plates are provided on both sides of the bottom support frame 4 and the top limiting frame 5. Fixing bolts 6 are connected to the fixing plates between the bottom support frame 4 and the top limiting frame 5. Both sides of the connector body 1 have connecting holes 101, and sealing rings 102 are connected inside the connecting holes 101.

[0031] Please refer to the details. Figure 1 , Figure 2 , Figure 4 In this embodiment, during the grouting process in the coal mine, the grouting pipe needs to be connected. Specifically, the grouting pipe connector needs to be inserted into the connector body 1 through the connection hole 101 and sealed using the sealing ring 102. During this process, the grouting pipe overlaps the bottom support frame 4. After the connection is completed, the top limiting frame 5 is aligned with the bottom support frame 4. Then, the bottom support frame 4 and the top limiting frame 5 are fixedly connected using the fixing bolts 6, thereby providing bottom support for the grouting pipe, improving the stability of the grouting pipe connection, and ensuring that the grout is injected into the formation more stably. Example 2

[0032] This embodiment differs from Embodiment 1. By utilizing the rotating mechanism 8 and the connecting locking mechanism 9, the tightness of the grouting pipe connector connection can be achieved. Therefore, the following technical solution is disclosed: Power boxes 7 are slidably connected to both sides of the top of the connector body 1, and a rotating mechanism 8 is provided on the connector body 1 between the power boxes 7. Each side of the power box 7 has a threaded hole 701, and the bottom of each power box 7 has a rectangular movable groove 702. The rotating mechanism 8 includes a support frame 801, which is fixed to the top of the connector body 1. The support frame 801 contains... The rotating shaft 802 is connected to the rotating shaft 802, and a rotating disk 803 is fixed to one end of the rotating shaft 802. A fixing pin 804 is connected to one side of the rotating disk 803, and one end of the fixing pin 804 extends into the support frame 801. A main gear 805 is fixed to one end of the rotating shaft 802, and a driven gear 806 meshes with one side of the main gear 805. A double-acting lead screw 807 passes through the driven gear 806. The two ends of the double-acting lead screw 807 are provided with external threads in opposite directions. The threaded holes 701 are all provided with internal thread grooves. The double-acting lead screw 807 and the power box 7 form a threaded connection.

[0033] Please refer to the details. Figure 1 , Figure 4 , Figure 5 According to the different connection requirements of the grouting pipe connector, adjust the position of the connection locking plate 904, that is, manually rotate the rotating disk 803 to drive the fixing pin 804 and the main gear 805 to rotate. The main gear 805 and the driven gear 806 mesh with each other, thereby causing the driven gear 806 and the double-acting screw 807 to rotate. By utilizing the threaded connection between the double-acting screw 807 and the threaded hole 701, the power box 7 can be slid outward, thereby adjusting the position of the guide component 905 to meet different connection requirements. Then, the fixing pin 804 is inserted into the support frame 801 to lock the rotating disk 803 and prevent the rotating shaft 802 from rotating on its own.

[0034] The power box 7 is equipped with a connecting locking mechanism 9, which includes a drive cavity 901 located inside the power box 7. A bidirectional threaded rod 902 is connected inside the drive cavity 901, and threaded blocks 903 are threaded to both ends of the outer side of the bidirectional threaded rod 902. A guide component 905 is connected to one side of the threaded block 903. One end of the bidirectional threaded rod 902 extends to the outside of the power box 7 and is connected to a rotating disk 906. A positioning pin 907 is connected to the outside of the rotating disk 906, and one end of the positioning pin 907 extends into the inside of the power box 7. The guide component 905 includes a limiting post and a limiting block. The limiting block is located on one side of the threaded block 903, and the limiting post passes through the limiting block and is located inside the drive cavity 901. A connecting locking plate 904 is fixed to the bottom of each threaded block 903, and a notch is provided on one side of each connecting locking plate 904. A sealing rubber plate 908 is connected inside each notch.

[0035] Please refer to the details. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 In this embodiment, rotating the positioning pin 907 drives the bidirectional threaded rod 902 to rotate. The bidirectional threaded rod 902 is threadedly connected to the threaded block 903, which allows the two threaded blocks 903 to approach each other and slide in the threaded hole 701, thereby driving the connecting locking plate 904 to move synchronously. During this process, the guide component 905 is used for limiting and guiding to ensure the stability of the movement of the connecting locking plate 904 until the two connecting locking plates 904 are in contact with the outer wall of the grouting pipe connector, thus achieving a clamping connection, ensuring the firmness of the connector connection, preventing loosening, and cooperating with the sealing rubber plate 908 to achieve a connection seal.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A coal mine grouting anti-loose grouting head connector, comprising a connector body (1), a supporting frame (2), and a fixed block (3), the bottom end of the connector body (1) is fixed with the supporting frame (2), and the top end of the supporting frame (2) is fixed with the fixed block (3) on both sides; characterized in that The fixed block (3) is provided with a supporting assembly at the top end, the connector body (1) is provided with a connecting hole (101) on both sides, and the connecting hole (101) is connected with a sealing ring (102) inside, the connector body (1) is slidably connected with a power box (7) on both sides of the top end, and a rotating mechanism (8) is arranged on the connector body (1) between the power boxes (7), and the power box (7) is provided with a connecting locking mechanism (9) inside.

2. The anti-loosening grouting head connector for coal mine grouting according to claim 1, characterized in that: The supporting assembly comprises a bottom supporting frame (4) fixed to the top end of the fixed block (3), and the top end of the bottom supporting frame (4) is provided with a top limiting frame (5), and the bottom supporting frame (4) and the top limiting frame (5) are connected with a fixed bolt (6).

3. The anti-loosening grouting head connector for coal mine grouting according to claim 2, characterized in that: The cross section of the bottom supporting frame (4) and the top limiting frame (5) is V-shaped, and the bottom supporting frame (4) and the top limiting frame (5) are provided with fixed leaf plates on both sides, and the fixed bolt (6) is connected to the fixed leaf plates between the bottom supporting frame (4) and the top limiting frame (5).

4. The anti-loosening grouting head connector for coal mine grouting according to claim 1, characterized in that: The power box (7) is provided with a threaded hole (701) on one side, and the bottom of the power box (7) is provided with a movable groove (702) with a rectangular cross section.

5. The anti-loosening grouting head connector for coal mine grouting according to claim 1, characterized in that: The rotating mechanism (8) comprises a supporting frame (801), and the supporting frame (801) is fixed to the top end of the connector body (1), the supporting frame (801) is connected with a rotating shaft (802) inside, one end of the rotating shaft (802) is fixed with a rotating disc (803), one side of the rotating disc (803) is connected with a fixed pin (804), one end of the fixed pin (804) extends into the supporting frame (801), one end of the rotating shaft (802) is fixed with a main gear (805), one side of the main gear (805) is engaged with a driven gear (806), and a bidirectional screw rod (807) penetrates through the driven gear (806) inside.

6. The anti-loosening grouting head connector for coal mine grouting according to claim 5, characterized in that: The outer sides of the bidirectional screw rod (807) are provided with external threads in opposite directions, the threaded holes (701) are provided with internal thread grooves inside, and the bidirectional screw rod (807) and the power box (7) are in threaded connection.

7. The anti-loosening grouting head connector for coal mine grouting according to claim 1, characterized in that: The connecting locking mechanism (9) comprises a driving cavity (901), and the driving cavity (901) is arranged in the power box (7), the driving cavity (901) is connected with a bidirectional threaded rod (902) inside, the outer sides of the bidirectional threaded rod (902) are threadedly connected with threaded blocks (903) at both ends, one side of the threaded block (903) is connected with a guide assembly (905), one end of the bidirectional threaded rod (902) extends to the outside of the power box (7) and is connected with a rotating disc (906), the outer side of the rotating disc (906) is connected with a positioning pin (907), and one end of the positioning pin (907) extends into the power box (7); The guiding assembly (905) comprises a limiting post and a limiting block, the limiting block is arranged on one side of the threaded block (903), the limiting post penetrates through the limiting block, and the limiting post is arranged in the driving cavity (901).

8. The anti-loosening grouting head connector for coal mine grouting according to claim 7, characterized in that: The threaded block (903) is fixed with a connecting locking plate (904) at the bottom end, one side of the connecting locking plate (904) is provided with a notch, and the notch is connected with a sealing rubber plate (908).

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