Movable flange for mine

Abstract

A movable flange for a mine comprises a first arc-shaped part, a second arc-shaped part and a fixing assembly, and first splicing blocks are arranged at the two ends of the first arc-shaped part. The splicing surface of the first splicing block is provided with the clamping block for limiting the angle through the coil spring, the splicing surface of the second splicing block is provided with the guide groove matched with the clamping block in an inserting and sliding mode and the clamping groove capable of limiting the position of the clamping block, the clamping block is matched with the guide groove in an inserting and sliding mode, so that the elastic force of the coil spring is compressed, and when the clamping block moves to a certain position, the clamping block is clamped in the clamping groove. The clamping block enters the clamping groove, due to the fact that the width of the clamping groove is larger than that of the guide groove, after the clamping block loses position limitation, the elastic force of the coil spring stretches, the angle of the clamping block is reset, and therefore the clamping block is limited in the clamping groove, and the first arc-shaped part and the second arc-shaped part are temporarily connected in a clamped mode. And the first arc-shaped part and the second arc-shaped part do not need to be supported, one worker can complete the operation, and utilization of provided human resources is improved to a certain degree.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a live flange for mines. Background Art

[0002] Due to the complex underground working environment, the flanges at the pipe joints are often damaged, so the staff need to perform frequent maintenance. In order to facilitate the maintenance and installation of the flanges, the applicant has previously applied for a live flange for a coal mine underground pipeline transportation system with a publication number of CN217843056U. The technical solution is spliced, including a first flange body and a second flange body, the first flange body is respectively provided with a first mounting protrusion at both ends, and the second flange body is respectively provided with a second mounting protrusion matching the first mounting protrusion at both ends. The first flange body and the second flange body are assembled into a complete flange, and the matching first mounting protrusion and the second mounting protrusion are connected by a fixing device, and the fixing device includes a set screw. By assembling the first flange body and the second flange body into a complete flange, and fixing and installing the first flange body and the second flange body together by a fixing device, it is easy to install, and solves the technical problem that the existing live flange cannot be replaced underground, resulting in a long maintenance cycle and low work efficiency of the live flange.

[0003] However, in subsequent use, it was found that when installing a large-diameter flange, since the flange is large and heavy, in order to prevent the flange from falling, two workers must support the first flange body and the second flange body in turn to ensure that the positions of the two correspond, and to facilitate the fixing of the first flange body and the second flange body by set screws. Two workers are required to perform the installation, which wastes human resources to a certain extent and the installation efficiency is relatively low. Utility Model Content

[0004] The utility model aims to provide a movable flange for mines, which can improve the utilization of human resources and the installation efficiency.

[0005] In order to solve the deficiencies of the above technical problems, the utility model adopts the following technical scheme: a live flange for mines, comprising a first arc-shaped portion, a second arc-shaped portion and a fixing assembly, wherein both ends of the first arc-shaped portion are provided with a first splicing block, and both ends of the second arc-shaped portion are provided with a second splicing block for cooperating with the first splicing block for splicing, when the corresponding first splicing block and the second splicing block are completely overlapped, the first arc-shaped portion and the second arc-shaped portion are spliced ​​into a complete flange through the fixing assembly, the splicing surface of the first splicing block is provided with a rotating clamping block, a coil spring is provided between the clamping block and the splicing surface, one end of the coil spring is connected to the clamping block, and the other end of the coil spring is connected to the first splicing block, the splicing surface of the second splicing block is provided with a guide groove for cooperating with the clamping block for sliding, the guide groove is parallel to the side of the splicing surface of the second splicing block, a clamping groove with a width greater than the guide groove is provided at the bottom wall of the guide groove, and when the corresponding first splicing block and the second splicing block are completely overlapped, the clamping block is located in the clamping groove.

[0006] As a further optimization of the living flange for mines of the utility model, the clamping block is provided with a rotating rod rotatably connected to the splicing surface of the first splicing block, and the coil spring is sleeved on the outside of the rotating rod.

[0007] As a further optimization of the living flange for mines of the utility model, one end of the guide groove away from the second arc-shaped portion extends to the outside of the second splicing block.

[0008] As a further optimization of the living flange for mines of the utility model, the guide groove includes a trapezoidal portion and a rectangular portion with equal widths and connected to the small-diameter ends of the trapezoidal portion, and the large-diameter end of the trapezoidal portion is far away from the second arc-shaped portion.

[0009] As a further optimization of the live flange for mines of the utility model, the fixing assembly includes a plurality of bolts and nuts, the first splicing blocks are each provided with a first connecting hole for the bolts to pass through, the second splicing blocks are each provided with a second connecting hole corresponding one to one to the first connecting hole, and the bolt column passes through the first connecting hole and the second connecting hole and is screwed together with the nut.

[0010] As a further optimization of the utility model of a live flange for mines, the fixing assembly includes multiple bolts, the first splicing blocks are each provided with connecting holes for the bolts to pass through, the second splicing blocks are each provided with threaded holes corresponding one to one to the connecting holes, and the bolt columns pass through the connecting holes and are screwed into the threaded holes.

[0011] As a further optimization of the living flange for mines of the utility model, the thickness of the first splicing block is consistent with that of the second splicing block, and the sum of the thickness of the first splicing block and the second splicing block is the same as the thickness of the first arc-shaped portion.

[0012] As a further optimization of the living flange for mines of the utility model, the first arc-shaped portion is integrally formed with the first splicing block, and the second arc-shaped portion is integrally formed with the second splicing block.

[0013] The utility model has the following beneficial effects: the utility model provides a clamping block whose angle is limited by a coil spring on the splicing surface of the first splicing block, and provides a guide groove that cooperates with the clamping block and slides on the splicing surface of the second splicing block, and a clamping groove that can limit the position of the clamping block. The clamping block and the guide groove cooperate and slide to compress the elastic force of the coil spring. When the clamping block moves to a certain position, the clamping block enters the clamping groove. Because the width of the clamping groove is greater than the guide groove, the elastic force of the coil spring stretches after the clamping block loses its position restriction, so that the angle of the clamping block is reset, thereby limiting the clamping block in the clamping groove, so that the first arc portion and the second arc portion are temporarily clamped. When the first arc portion and the second arc portion are fixedly spliced ​​by bolts, there is no need to support the first arc portion and the second arc portion, and one staff member can complete it, which improves the utilization of human resources to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The structure of the living flange of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 2 The structure of the living flange of the utility model is shown in FIG. Figure 2 ;

[0016] Figure 3 It is a partial cross-sectional structural schematic diagram of the living flange of the utility model;

[0017] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0018] Figure numerals: 1, first arc-shaped portion, 2, clamping block, 3, first splicing block, 4, second splicing block, 5, second arc-shaped portion, 6, guide groove, 601, trapezoidal portion, 602, rectangular portion, 7, rotating rod, 8, coil spring, 9, clamping slot. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] like Figure 1-4 As shown, the utility model provides a movable flange for mines, which can be temporarily fixed and connected to the pipeline before assembly. Only one worker is needed to complete the insertion of bolts and quickly assemble the first arc portion 1 and the second arc portion 5, thereby improving the utilization of human resources and the installation efficiency.

[0021] The present invention is similar to the prior art in that the movable flange includes a first arc-shaped portion 1, a second arc-shaped portion 5 and a fixing assembly, both ends of the first arc-shaped portion 1 are provided with a first splicing block 3, both ends of the second arc-shaped portion 5 are provided with a second splicing block 4 for cooperating with the first splicing block 3, and when the corresponding first splicing block 3 and the second splicing block 4 are completely overlapped, the first arc-shaped portion 1 and the second arc-shaped portion 5 are spliced ​​into a complete flange through the fixing assembly.

[0022] In the present invention, the first arc portion 1 is integrally formed with the first splicing block 3, and the second arc portion 5 is integrally formed with the second splicing block 4. At the same time, the thickness of the first splicing block 3 and the second splicing block 4 is consistent, and the sum of the thickness of the first splicing block 3 and the second splicing block 4 is the same as the thickness of the first arc portion 1.

[0023] There are two structures of the fixing assembly in the utility model. The first structure of the fixing assembly is: the fixing assembly includes multiple bolts and nuts, the first splicing block 3 is provided with a first connection hole for the bolt to pass through, and the second splicing block 4 is provided with a second connection hole corresponding to the first connection hole. The bolt column passes through the first connection hole and the second connection hole and is screwed to the nut. In this way, the distance between the bolt head and the nut is changed by the thread movement of the bolt and the nut, so as to squeeze and fix the first splicing block 3 and the second splicing block 4.

[0024] The second structure of the fixing assembly is: the fixing assembly includes a plurality of bolts, the first splicing block 3 is provided with connection holes for the bolts to pass through, the second splicing block 4 is provided with threaded holes corresponding to the connection holes, and the bolts are screwed into the threaded holes after passing through the connection holes. In this way, the spacing between the bolt head and the threaded hole is changed by the threaded movement of the bolt and the threaded hole, so as to squeeze and fix the first splicing block 3 and the second splicing block 4. Reducing the number of parts here can reduce the probability of part loss and avoid the inability to assemble due to part loss.

[0025] The utility model is different from the prior art in that: the splicing surface of the first splicing block 3 is provided with a clamping block 2, and the splicing surface of the second splicing block 4 is provided with a clamping groove 9 for clamping the clamping block 2 and a guide groove 6 for guiding the clamping block 2 to be clamped. When the corresponding first splicing block 3 and the second splicing block 4 are completely overlapped, the clamping block 2 can be fixed inside the clamping groove 9, so that the first splicing block 3 and the second splicing block 4 can temporarily form a complete flange for the fixing assembly to fix the second arc portion 5 and the second splicing block 4.

[0026] In this embodiment, a rotating rod 7 is provided on the side of the clamping block 2 facing the splicing surface of the first splicing block 3, a bearing with an outer ring fixedly connected thereto is embedded on the splicing surface of the first splicing block 3, and the end of the rotating rod 7 is fixedly connected to the inner ring of the bearing, so that the clamping block 2 is rotatably arranged on the splicing surface of the first splicing block 3, and a coil spring 8 is provided between the splicing surfaces of the clamping block 2 and the first splicing block 3, one end of the coil spring 8 is connected to the clamping block 2, and the other end of the coil spring 8 is connected to the first splicing block 3, and the coil spring 8 is sleeved on the outer side of the rotating rod 7. In the utility model, the coil spring 8 keeps the clamping block 2 in a tilted state in a normal state, limiting its setting angle.

[0027] In the present invention, the guide groove 6 provided on the joint surface of the second joint block 4 is parallel to the side of the joint surface of the second joint block 4, and the end of the guide groove 6 away from the second arc-shaped portion 5 extends to the outside of the second joint block 4, and the inner width of the guide groove 6 is consistent with the width of the card block 2, and the bottom wall of the guide groove 6 close to the second arc-shaped portion 5 is provided with a card groove 9 having a width greater than that of the guide groove 6

[0028] The guide groove 6 can cooperate with the card block 2 to be inserted and slid, and the card block 2 will be introduced into the card slot 9 for card connection through the guide groove 6. Because the card block 2 is in an inclined state due to the setting of the coil spring 8, when inserting the guide groove 6, it is necessary to keep the card block 2 parallel to the side of the splicing surface of the first splicing block 3, so that it can be inserted into the guide groove 6. The card block 2 is inserted and slid with the guide groove 6 to compress the elastic force of the coil spring 8. When the card block 2 moves to a certain position, the card block 2 can enter the card slot 9. Because the width of the card slot 9 is greater than the guide groove 6, the card block 2 loses its position restriction after entering the card slot 9. The elastic force of the coil spring 8 is stretched to reset the angle of the card block 2, thereby limiting the card block 2 in the card slot 9, so that the first arc portion 1 and the second arc portion 5 are temporarily carded to form a completed flange.

[0029] In the utility model, the guide groove 6 is composed of a trapezoidal portion 601 and a rectangular portion 602 having the same width as the small diameter end of the trapezoidal portion 601. The trapezoidal portion 601 and the rectangular portion 602 are connected, the trapezoidal portion 601 is away from the second arc-shaped portion 5, and the clamping groove 9 is provided on the bottom wall of the rectangular portion 602. The trapezoidal portion 601 enables the card block 2 in an inclined state to directly enter the guide groove 6. When the card block 2 is inserted and slid into the guide groove 6, the width of the trapezoidal portion 601 is gradually narrowed, so the card block 2 modifies its angle due to the limitation of the guide groove 6. After the card block 2 enters the rectangular portion 602, the card block 2 remains parallel to the side of the splicing surface of the first splicing block 3. The arrangement of the trapezoidal portion 601 enables the card block 2 to easily enter the rectangular portion 602, which can improve the clamping efficiency.

[0030] The following is the clamping process of the utility model when in use: by hanging the first arc portion 1 on the upper part of the circumferential side of the pipe, the staff then holds the second arc portion 5, and by making the end of the clamping block 2 correspond to the trapezoidal portion 601 of the guide groove 6, the second arc portion 5 is moved upward to make the clamping block 2 enter the trapezoidal portion 601. As the second arc portion 5 is gradually moved upward, the clamping block 2 enters the rectangular portion 602 of the guide groove 6 after being limited by the second arc portion 5. Subsequently, when moving to the clamping groove 9, the clamping block 2 corresponds to the clamping groove 9, and the second arc portion 5 is pushed horizontally toward the side of the first arc portion 1, so that the clamping block 2 is inserted into the clamping groove 9. After the clamping block 2 enters the clamping groove 9, because the rectangular portion 602 is lost, the elastic force of the coil spring 8 is stretched, so that the angle of the clamping block 2 is reset, thereby limiting the clamping block 2 in the clamping groove 9.

[0031] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various modifications or variations within the scope of the claims, which does not affect the essence of the present invention.

Claims

1. A live flange for a mine, comprising a first arc-shaped portion (1), a second arc-shaped portion (5) and a fixing assembly, wherein both ends of the first arc-shaped portion (1) are provided with a first splicing block (3), and both ends of the second arc-shaped portion (5) are provided with a second splicing block (4) for cooperating with the first splicing block (3). When the corresponding first splicing block (3) and second splicing block (4) are completely overlapped, the first arc-shaped portion (1) and the second arc-shaped portion (5) are spliced ​​into a complete flange through the fixing assembly, characterized in that: The splicing surface of the first splicing block (3) is provided with a rotatable clamping block (2), a coil spring (8) is provided between the clamping block (2) and the splicing surface, one end of the coil spring (8) is connected to the clamping block (2), and the other end of the coil spring (8) is connected to the first splicing block (3), the splicing surface of the second splicing block (4) is provided with a guide groove (6) which is inserted and slidably matched with the clamping block (2), the guide groove (6) is parallel to the side of the splicing surface of the second splicing block (4), and the bottom wall of the guide groove (6) is provided with a clamping groove (9) whose width is greater than the guide groove (6), and when the corresponding first splicing block (3) and second splicing block (4) are completely overlapped, the clamping block (2) is located in the clamping groove (9).

2. A movable flange for mine according to claim 1, characterized in that: The clamping block (2) is provided with a rotating rod (7) rotatably connected to the splicing surface of the first splicing block (3), and the coil spring (8) is sleeved on the outer side of the rotating rod (7).

3. A living flange for mine according to claim 1, characterized in that: One end of the guide groove (6) away from the second arc-shaped portion (5) extends to the outside of the second splicing block (4).

4. A living flange for mine according to claim 3, characterized in that: The guide groove (6) comprises a trapezoidal portion (601) and a rectangular portion (602) of equal width which is connected to the small-diameter end of the trapezoidal portion (601), and the large-diameter end of the trapezoidal portion (601) is away from the second arc-shaped portion (5).

5. The movable flange for mine according to claim 1, characterized in that: The fixing assembly comprises a plurality of bolts and nuts. The first splicing blocks (3) are each provided with a first connection hole for the bolts to pass through, and the second splicing blocks (4) are each provided with a second connection hole corresponding to the first connection hole one by one. The bolt studs pass through the first connection hole and the second connection hole and are screwed to the nuts.

6. A living flange for mine according to claim 1, characterized in that: The fixing assembly comprises a plurality of bolts. The first splicing blocks (3) are each provided with a connection hole for the bolts to pass through. The second splicing blocks (4) are each provided with a threaded hole corresponding to the connection holes one by one. The bolt posts pass through the connection holes and are screwed into the threaded holes.

7. A living flange for mine according to claim 1, characterized in that: The thickness of the first splicing block (3) is consistent with that of the second splicing block (4), and the sum of the thickness of the first splicing block (3) and the second splicing block (4) is the same as the thickness of the first arc-shaped portion (1).

8. The movable flange for mine according to claim 1, characterized in that: The first arc-shaped portion (1) and the first splicing block (3) are integrally formed, and the second arc-shaped portion (5) and the second splicing block (4) are integrally formed.

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