Modular operating oil pipe connection structure for hydraulic turbine

Abstract

The utility model discloses a modularization operating oil pipe connecting structure for water turbine belongs to operating oil pipe technical field, aimed at the problem of operating oil pipe low replacement efficiency, including several even distribution's operating oil pipe body, operating oil pipe body outside wall one side is fixed with first flange, operating oil pipe body outside wall other side is fixed with second flange, first flange one side surface is provided with several first aperture that is circularly distributed, is provided with L type rod in first aperture, and L type rod one end is fixed with the plug -in post, and the plug -in post outside wall is fixed with several even distribution's annular elastic ring, the utility model discloses the structure design of annular elastic ring and annular limiter makes the plug -in post only one -way movement can occur relative to annular limiter, cannot carry out two -way movement, and connecting structure does not have bolt to participate, on one hand, improved the efficiency that operating oil pipe body replaced, on the other hand, guaranteed the stability that first flange and second flange were connected.

Description

Technical Field

[0001] This utility model belongs to the field of operating oil pipe technology, specifically relating to a modular operating oil pipe connection structure for a water turbine. Background Technology

[0002] The existing operating pipes used in water turbines are modular operating pipes, which are formed by splicing together multiple fixed-length operating pipes. When splicing, the flanges of adjacent operating pipes are connected by bolts. However, due to the large number of bolts on the flanges, a lot of time is spent when replacing the operating pipes, resulting in low replacement efficiency.

[0003] Therefore, a modular operating oil pipe connection structure for water turbines is needed to solve the problem of low operating oil pipe replacement efficiency in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a modular operating oil pipe connection structure for a water turbine, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular operating oil pipe connection structure for a water turbine, comprising several evenly distributed operating oil pipe bodies, a first flange fixed to one side of the outer wall of each operating oil pipe body, and a second flange fixed to the other side of the outer wall of each operating oil pipe body. A plurality of circumferentially distributed first openings are provided on one side of the first flange, and an L-shaped rod is installed within each first opening. A pin is fixed to one end of each L-shaped rod, and a plurality of evenly distributed annular elastic rings are fixed to the outer wall of each pin. A plurality of circumferentially distributed second openings are provided on one side of the second flange, and a plurality of evenly distributed annular limiters that cooperate with the annular elastic rings are fixed to the inner wall of each second opening. A limit assembly is provided on one side of the first flange.

[0006] It should be noted in the solution that hexagonal rings are fixed on both sides of the outer wall of the operating tubing body. The limiting component includes six placement brackets, which are respectively fixed to the outer wall of the hexagonal rings and distributed in a circle. A docking post is movably connected to the side of the placement bracket away from the hexagonal ring. A fixing ring is fixed to the outer wall of the docking post. A spring is provided around the docking post. One end of the spring is fixed to one side of the fixing ring, and the other end of the spring is fixed to the side of the placement bracket away from the hexagonal ring.

[0007] It is worth noting that the L-shaped rod has a mating hole on the side away from the hexagonal ring, and the end of the mating post away from the hexagonal ring is engaged in the mating hole.

[0008] Furthermore, it should be noted that the first flange has an annular groove on the side near the second flange, and the second flange has a sealing ring fixed on the side near the first flange, the sealing ring being engaged in the annular groove.

[0009] In a preferred embodiment, a push bar is fixed to one end of the docking post near the hexagonal ring.

[0010] Compared with the prior art, the modular operating oil pipe connection structure for a water turbine provided by this utility model has at least the following beneficial effects: The positioning of the L-shaped rod can be limited or unlimited by the designed docking post and spring, which in turn allows the insertion post to be limited or unlimited. The annular elastic ring and annular limiter enable interlocking between adjacent operating pipe bodies, facilitating the splicing of the operating pipe body to be installed with the operating pipe body on the turbine. Due to the structural design of the annular elastic ring and annular limiter, the insertion post can only move unidirectionally relative to the annular limiter, preventing bidirectional movement. The connection structure is bolt-free, improving the efficiency of operating pipe body replacement while ensuring the stability of the connection between the first and second flanges. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the first flange structure of this utility model; Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure of part A in the diagram; Figure 4 This is a schematic diagram of the annular elastic ring structure of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the hexagonal ring of this utility model; Figure 6 This utility model Figure 5 A magnified schematic diagram of part B.

[0012] In the picture: 100. Operating tubing body; 101. First flange; 102. Second flange; 103. First opening; 104. Second opening; 105. L-shaped rod; 106. Butt hole; 107. Insert post; 108. Hexagonal ring; 200. Annular elastic ring; 201. Annular limit switch; 300. Placement rack; 301. Connecting post; 302. Spring; 303. Retaining ring; 304. Push bar; 400, Annular groove; 401, Sealing ring. Detailed Implementation

[0013] Please see Figures 1-6 This utility model provides a modular operating oil pipe connection structure for a water turbine, including several evenly distributed operating oil pipe bodies 100. A first flange 101 is fixed to one side of the outer wall of each operating oil pipe body 100, and a second flange 102 is fixed to the other side of the outer wall of each operating oil pipe body 100. A plurality of circumferentially distributed first openings 103 are opened on one side of the first flange 101. An L-shaped rod 105 is provided in the first opening 103. A plug 107 is fixed to one end of the L-shaped rod 105. A plurality of evenly distributed annular elastic rings 200 are fixed to the outer wall of the plug 107. A plurality of circumferentially distributed second openings 104 are opened on one side of the second flange 102. A plurality of evenly distributed annular limiters 201 that cooperate with the annular elastic rings 200 are fixed to the inner wall of the second opening 104. A limit component is provided on one side of the first flange 101.

[0014] Further as Figure 2 and Figure 3 As shown, hexagonal rings 108 are fixed on both sides of the outer wall of the operating tubing body 100. The limiting assembly includes six placement brackets 300. The six placement brackets 300 are fixed to the outer wall of the hexagonal rings 108 and are distributed in a circumferential manner. A docking post 301 is movably connected to the side of the placement bracket 300 away from the hexagonal rings 108. A fixing ring 303 is fixed to the outer wall of the docking post 301. A spring 302 is provided around the docking post 301. One end of the spring 302 is fixed to one side of the fixing ring 303, and the other end of the spring 302 is fixed to the side of the placement bracket 300 away from the hexagonal rings 108. The hexagonal ring 108 strengthens the two sides of the operating oil pipe body 100, facilitating the placement of the limiting component. The placement bracket 300 restricts the position of the docking post 301. The spring 302 automatically resets the docking post 301 under the spring force after it approaches the hexagonal ring 108, thus facilitating the restriction of the position of the L-shaped rod 105.

[0015] This solution includes the following working process: When one of the modular operating tubing bodies 100 needs to be replaced, the operator first places the web of their left hand around the six pushers 304 on the side of the operating tubing body 100 to be replaced. Then, the tips of the index finger and thumb touch to form a circle, achieving a wrapping effect on the six pushers 304. The operator then slowly bends their index finger, causing the circle to gradually shrink, applying force to the six pushers 304. This causes the six pushers 304 to move closer to the hexagonal circle 108, and the movement of the pushers 304 drives the docking post 301. The docking post 301 moves, causing the spring 302 to be compressed until the docking post 301 moves out of the docking hole 106. At this time, the docking post 301 releases its restriction on the L-shaped rod 105. Then, the right hand pushes the L-shaped rod 105 in sequence, causing the L-shaped rod 105 and the insertion post 107 to move out of the second opening 104. At this time, one side of the operating oil pipe body 100 to be replaced is unrestricted and can move freely. Then, the L-shaped rod 105 on the operating oil pipe body 100 to be replaced is removed according to the above steps. At this time, the operating oil pipe body 100 to be replaced is removed, completing the disassembly of the operating oil pipe body 100 to be replaced. Subsequently, the six L-shaped rods 105 removed in the two separate operations were placed, according to the steps described above, into the first opening 103 on the first flange 101 of the operating oil pipe body 100 on the turbine and the first opening 103 on the first flange 101 of the new operating oil pipe body 100 to be installed. Then, the first flange 101 and the second flange 102 of the new operating oil pipe body 100 to be installed were respectively installed between the adjacent first flanges 101 and second flanges 102 on the turbine. At this time, several insertion posts 107 were inserted into the corresponding second openings 104. During the insertion of the insert 107 into the second opening 104, the annular elastic ring 200 deforms during movement due to the obstruction of the annular limiter 201, and eventually engages with the annular limiter 201. At this point, the new operating oil pipe body 100 to be installed is connected to the operating oil pipe body 100 on the turbine, realizing the replacement of the operating oil pipe body 100. The modular operating oil pipe body 100 units on the turbine are sequentially engaged by the mounting structures on both sides of the operating oil pipe body 100, realizing the splicing of the modular operating oil pipe body 100 units. Due to the structural design of the annular elastic ring 200 and the annular limiter 201, the insert 107 can only move in one direction relative to the annular limiter 201, and cannot move in both directions. The connection structure is boltless, which improves the efficiency of replacing the operating oil pipe body 100 on the one hand, and ensures the stability of the connection between the first flange 101 and the second flange 102 on the other hand.

[0016] As can be seen from the above working process: the setting of the docking post 301 and the spring 302 allows the position of the L-shaped rod 105 to be limited or unlimited, thereby allowing the insertion post 107 to be limited or unlimited; the setting of the annular elastic ring 200 and the annular limiter 201 allows two adjacent operating oil pipe bodies 100 to be snapped together by the annular elastic ring 200 and the annular limiter 201, which facilitates the splicing of the operating oil pipe body 100 to be installed with the operating oil pipe body 100 on the turbine. Due to the structural design of the annular elastic ring 200 and the annular limiter 201, the insertion post 107 can only move in one direction relative to the annular limiter 201 and cannot move in two directions. The connection structure is boltless, which improves the efficiency of replacing the operating oil pipe body 100 on the one hand, and ensures the stability of the connection between the first flange 101 and the second flange 102 on the other hand.

[0017] Further as Figure 3 As shown, the L-shaped rod 105 has a mating hole 106 on the side away from the hexagonal ring 108. The end of the mating post 301 away from the hexagonal ring 108 is engaged in the mating hole 106. The mating hole 106 is provided so that the mating post 301 can be engaged in the mating hole 106, thereby limiting the position of the L-shaped rod 105. This arrangement allows the position of the L-shaped rod 105 to be limited or unlimited.

[0018] Further as Figure 6 As shown, the first flange 101 has an annular groove 400 on the side near the second flange 102, and a sealing ring 401 is fixed on the side of the second flange 102 near the first flange 101. The sealing ring 401 is engaged in the annular groove 400. Through the annular groove 400 and the sealing ring 401, the sealing between the first flange 101 and the second flange 102 can be more stable, preventing the oil in the operating oil pipe body 100 from overflowing from the mating surface of the first flange 101 and the second flange 102 during the use of the operating oil pipe body 100.

[0019] Further as Figure 2 As shown, a push bar 304 is fixed to one end of the docking post 301 near the hexagonal ring 108. The push bar 304 facilitates the movement of the docking post 301 by manually pushing it.

[0020] In summary: When one of the modular operating tubing bodies 100 needs to be replaced, the operator first places the web of their left hand around the six pushers 304 on the side of the operating tubing body 100 to be replaced. Then, the tips of the index finger and thumb touch to form a circle, effectively wrapping around the six pushers 304. The operator then slowly bends their index finger, causing the circle to gradually shrink, applying force to the six pushers 304. This causes the pushers 304 to move closer to the hexagonal circle 108. The movement of the pushers 304 moves the connecting post 301, thus... The movement of the connecting post 301 compresses the spring 302 until the connecting post 301 moves out of the connecting hole 106. At this time, the connecting post 301 releases its restriction on the L-shaped rod 105. Then, the right hand pushes the L-shaped rod 105 in sequence, so that the L-shaped rod 105 and the insert post 107 move out of the second opening 104. At this time, one side of the operating oil pipe body 100 to be replaced is unrestricted and can move freely. Then, the L-shaped rod 105 on the operating oil pipe body 100 to be replaced is removed according to the above steps. At this time, the operating oil pipe body 100 to be replaced is removed, and the disassembly of the operating oil pipe body 100 to be replaced is completed. Subsequently, the six L-shaped rods 105 removed in the two separate operations were placed, according to the steps described above, into the first opening 103 on the first flange 101 of the operating oil pipe body 100 on the turbine and the first opening 103 on the first flange 101 of the new operating oil pipe body 100 to be installed. Then, the first flange 101 and the second flange 102 of the new operating oil pipe body 100 to be installed were respectively installed between the adjacent first flanges 101 and second flanges 102 on the turbine. At this time, several insertion posts 107 were inserted into the corresponding second openings 104. During the insertion of the insert 107 into the second opening 104, the annular elastic ring 200 deforms during movement due to the obstruction of the annular limiter 201, and eventually engages with the annular limiter 201. At this point, the new operating oil pipe body 100 to be installed is connected to the operating oil pipe body 100 on the turbine, realizing the replacement of the operating oil pipe body 100. The modular operating oil pipe body 100 units on the turbine are sequentially engaged by the mounting structures on both sides of the operating oil pipe body 100, realizing the splicing of the modular operating oil pipe body 100 units. Due to the structural design of the annular elastic ring 200 and the annular limiter 201, the insert 107 can only move in one direction relative to the annular limiter 201, and cannot move in both directions. The connection structure is boltless, which improves the efficiency of replacing the operating oil pipe body 100 on the one hand, and ensures the stability of the connection between the first flange 101 and the second flange 102 on the other hand.

[0021] Figure 1The state of the spliced ​​operating oil pipe bodies 100 in the diagram is only for illustration purposes. In reality, the spliced ​​operating oil pipe bodies 100 are in a bent state. Therefore, when a new operating oil pipe body 100 to be installed is installed on the turbine operating oil pipe body 100, the new operating oil pipe body 100 to be installed can adaptively compensate for the distance so that the new operating oil pipe body 100 to be installed can better connect with the operating oil pipe body 100 on the turbine.

[0022] Among them, the operating oil pipe body 100 on the turbine refers to the total part of the operating oil pipe bodies 100 on both sides after the operating oil pipe body 100 that needs to be replaced is removed.

[0023] The end face area of ​​the L-shaped rod 105 near the insertion post 107 is smaller than the end face area of ​​the insertion post 107, meaning that the insertion post 107 can pass smoothly through the second opening 104.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular operating oil pipe connection structure for a water turbine, comprising a plurality of evenly distributed operating oil pipe bodies (100), characterized in that, A first flange (101) is fixed on one side of the outer wall of the operating oil pipe body (100), and a second flange (102) is fixed on the other side of the outer wall of the operating oil pipe body (100). A plurality of first openings (103) are provided on one side of the first flange (101). An L-shaped rod (105) is provided in the first opening (103). A plug (107) is fixed at one end of the L-shaped rod (105). A plurality of evenly distributed annular elastic rings (200) are fixed on the outer wall of the plug (107). A plurality of second openings (104) are provided on one side of the second flange (102). A plurality of evenly distributed annular limiters (201) that cooperate with the annular elastic rings (200) are fixed on the inner wall of the second openings (104). A limit component is provided on one side of the first flange (101).

2. The modular operating oil pipe connection structure for a water turbine according to claim 1, characterized in that: Hexagonal rings (108) are fixed on both sides of the outer wall of the operating tubing body (100). The limiting component includes six placement brackets (300). The six placement brackets (300) are fixed on the outer wall of the hexagonal rings (108) and are distributed in a circular pattern. A docking post (301) is movably connected to the side of the placement bracket (300) away from the hexagonal rings (108). A fixing ring (303) is fixed on the outer wall of the docking post (301). A spring (302) is provided around the docking post (301). One end of the spring (302) is fixed to one side of the fixing ring (303), and the other end of the spring (302) is fixed to the side of the placement bracket (300) away from the hexagonal rings (108).

3. The modular operating oil pipe connection structure for a water turbine according to claim 2, characterized in that: The L-shaped rod (105) has a docking hole (106) on the side away from the hexagonal ring (108), and the docking post (301) is engaged in the docking hole (106) at the end away from the hexagonal ring (108).

4. The modular operating oil pipe connection structure for a water turbine according to claim 1, characterized in that: The first flange (101) has an annular groove (400) on the side near the second flange (102), and a sealing ring (401) is fixed on the side of the second flange (102) near the first flange (101). The sealing ring (401) is engaged in the annular groove (400).

5. The modular operating oil pipe connection structure for a water turbine according to claim 2, characterized in that: A pusher (304) is fixed to one end of the docking post (301) near the hexagonal ring (108).

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