Inward-opening type water distribution ring pipe mandoor structure

Abstract

The utility model discloses an inward opening type water distribution ring pipe mandoor structure which comprises an upper connecting arm, a lower connecting arm and a hydraulic device, a door body is connected with the lower connecting arm, the lower connecting arm is connected with the upper connecting arm, and the upper connecting arm is connected with a fixing part on a water distribution ring pipe, so that the stability of the door body in the opening and closing process is ensured, and the safety of the door body is ensured. Safety accidents caused by shaking or falling off are avoided, and the plant flooding accident caused by breakage of the connecting bolts can be avoided through the inward opening type design; in addition, one end of the hydraulic device is connected with the fixing part of the upper connecting arm, the other end of the hydraulic device is connected with the lower connecting arm, the door body can be controlled to be opened and closed through the hydraulic device, meanwhile, a flange plate sealing structure is arranged, water flow leakage can be effectively prevented, and the inward-opening type man-entering door hydraulic structure replaces manual operation. The mechanical damage to operators in the door body opening and closing process can be avoided, the large opening degree can be maintained, and the passing ability and safety of maintainers are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydroelectric power generation structures, and particularly relates to an inward-opening access door structure for a water distribution ring pipe. Background Technique

[0002] Hydroelectric power utilizes the water flow with potential energy at high places such as rivers and lakes flowing to low places, converting the potential energy contained therein into the kinetic energy of a water turbine, and then using the water turbine as the prime mover to drive a generator to generate electric energy. Using hydraulic power (with a water head) to drive a hydraulic machine (water turbine) to rotate, converting water energy into mechanical energy. If another machine (generator) is connected to the water turbine and rotates with the water turbine, electricity can be generated, and at this time, the mechanical energy is converted into electric energy again. Hydroelectric power generation is, in a sense, a process of converting the potential energy of water into mechanical energy and then into electric energy.

[0003] In a hydroelectric power generation structure, a water distribution ring pipe is a guiding component that guides water flow into a nozzle, causing the nozzle to burst out water flow to impact a water turbine. When designing the water distribution ring pipe, an access door structure is provided on one side of the ring pipe for convenient maintenance, so as to check and maintain the internal condition of the water distribution ring pipe.

[0004] The existing access door structure for the water distribution ring pipe has the following deficiencies:

[0005] The existing access door structure for the water distribution ring pipe generally adopts an outward-opening structure, which is manually operated, and the opening and closing direction is generally on the side. During the maintenance process, the outward-opening structure has certain safety hazards, and it is easy to cause maintenance personnel to be injured by the door body structure, and it is laborious to install. At the same time, due to the long-term pressure of the water distribution ring pipe, the door structure is prone to slight deformation, resulting in the door structure being not easy to open or leak. And due to the excessive pressure inside the ring pipe, after the connecting bolts fatigue and break, an accident of flooding the powerhouse is likely to occur. Summary of the Invention

[0006] The purpose of the utility model is to overcome the above problems and provide an inward-opening access door structure for a water distribution ring pipe, which can not only strengthen the strength of the door body structure to resist deformation, but also prevent the pressure from impacting the door body and causing the connecting bolts to break, resulting in accidents of flooding the powerhouse and safety accidents.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] The utility model provides an inward-opening access door structure for a water distribution ring pipe, including a door body, the connection between the door body and a lower connecting arm, the connection between the lower connecting arm and an upper connecting arm, the connection between the upper connecting arm and a fixing component on the water distribution ring pipe, one end of the lower connecting arm is connected to a hydraulic device, the other end of the hydraulic device is connected to the upper connecting arm, and flange plates are arranged on both the outer side and the inner side of the door body.

[0009] A further improvement of the present utility model lies in that the lower connecting arm is provided with a lower bearing hole of the lower connecting arm, a middle bearing hole of the lower connecting arm, and an upper bearing hole of the lower connecting arm, and the upper connecting arm is provided with an upper bearing hole of the upper connecting arm and a lower bearing hole of the upper connecting arm.

[0010] A further improvement of the present utility model lies in that the lower bearing hole of the lower connecting arm is connected to the door body, the middle bearing hole of the lower connecting arm is connected to the lower bearing hole of the upper connecting arm, and the upper bearing hole of the lower connecting arm is connected to the hydraulic device.

[0011] A further improvement of the present utility model lies in that the upper bearing hole of the upper connecting arm is connected to the hydraulic device and the fixing component on the water distribution ring pipe.

[0012] A further improvement of the present utility model lies in that the flange plate includes an inner flange plate and an outer flange plate. The inner flange plate is arranged on the inner side of the door body, the outer flange plate is arranged on the outer side of the door body, and the inner flange plate and the outer flange plate are connected by bolts.

[0013] A further improvement of the present utility model lies in that the sealing surfaces of the inner flange plate and the outer flange plate are sealed by rubber round bars.

[0014] A further improvement of the present utility model lies in that the door body is of a circular structure, the water passing surface is an arc surface, which has the same radian as the inner wall of the water distribution ring pipe, the non-water surface of the door body is a circular plane, and a locking device is arranged on the door body.

[0015] A further improvement of the present utility model lies in that the hydraulic device includes a cylinder part and a piston rod head. The cylinder part is connected to the upper bearing hole of the upper connecting arm, and the piston rod head is connected to the upper bearing hole of the lower connecting arm.

[0016] A further improvement of the present utility model lies in that a driving part is arranged on the upper bearing hole of the upper connecting arm, a transmission part is arranged on the upper connecting arm, and the transmission part is connected to the driving part.

[0017] A further improvement of the present utility model lies in that two sets of the upper connecting arm, the lower connecting arm, and the hydraulic device are provided.

[0018] Compared with the prior art, the present utility model has the following beneficial effects:

[0019] The utility model connects the door body with the lower connecting arm, the lower connecting arm with the upper connecting arm, and the upper connecting arm with the fixing component on the water distribution ring pipe, ensuring the stability of the door body during the opening and closing processes, avoiding safety accidents caused by shaking or falling off. The inward-opening design can avoid the water flooding accident in the plant caused by the fracture of the connecting bolts. Additionally, one end of the hydraulic device is connected to the fixing component of the upper connecting arm, and the other end is connected to the lower connecting arm, enabling the control of the opening and closing of the door body through the hydraulic device. Meanwhile, a flange sealing structure is provided, which can effectively prevent water leakage. Moreover, the inward-opening access door hydraulic structure replaces manual operation, avoiding mechanical injuries to operators during the opening and closing processes of the door body, maintaining a relatively large opening degree, and increasing the accessibility and safety of maintenance personnel.

[0020] Further, the sealing surfaces of the inner flange and the outer flange are sealed by a rubber round bar. As a sealing material, the rubber round bar has excellent elasticity and plasticity, can closely fit the sealing surfaces of the inner flange and the outer flange, form an effective sealing barrier, and prevent water leakage.

[0021] Further, a driving part is arranged on the bearing hole of the upper connecting arm, a transmission part is arranged on the upper connecting arm, the transmission part is connected to the driving part, the driving part drives the upper connecting arm to rotate, drives the hydraulic device to rotate, the hydraulic device assists in driving the lower connecting arm to rotate, and further drives the opening and closing of the door body. At the same time, the connection between the transmission part and the driving part not only realizes the effective transmission of power but also can share and balance the load and impact during the transmission process to a certain extent. Description of the Drawings

[0022] The drawings described herein are only for explanatory purposes and are not intended to limit the scope of the disclosure of the present utility model in any way. Additionally, the shapes and proportional dimensions of the components in the drawings are only schematic for helping the understanding of the present utility model and do not specifically limit the shapes and proportional dimensions of the components of the present utility model.

[0023] Figure 1 It is a perspective view of the inward-opening water distribution ring pipe access door structure of the present utility model;

[0024] Figure 2 It is a side view of the inward-opening water distribution ring pipe access door structure of the present utility model in the open state;

[0025] Figure 3 It is a side view of the inward-opening water distribution ring pipe access door structure of the present utility model in the closed state;

[0026] Figure 4 It is a front view of the inward-opening water distribution ring pipe access door structure of the present utility model;

[0027] Figure 5 It is a closed state diagram of the inward-opening water distribution ring pipe access door of the present utility model;

[0028] Figure 6 This is the open state diagram of the access door of the inward-opening water distribution ring pipe of the present utility model.

[0029] Wherein: 1. Door body; 2. Upper connecting arm; 21. Upper bearing hole of the upper connecting arm; 22. Lower bearing hole of the upper connecting arm; 3. Lower connecting arm; 31. Lower bearing hole of the lower connecting arm; 32. Middle bearing hole of the lower connecting arm; 33. Upper bearing hole of the lower connecting arm; 4. Transmission part; 5. Driving part; 6. Hydraulic device; 7. Flange; 71. Inner flange; 72. Outer flange; 8. Threaded hole; 9. Locking device. Specific embodiments

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0032] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In the description of the embodiments of the present utility model, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present utility model is habitually placed, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0034] In addition, when the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0035] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and defined, when terms such as "arranged", "installed", "connected", and "joined" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] The following further describes the present utility model in detail with reference to the accompanying drawings:

[0037] As Figure 1 shown, the present utility model provides an inward-opening water distribution ring pipe access door structure, which includes a door body 1, an upper connecting arm 2, a lower connecting arm 3, a transmission member 4, a driving member 5, a hydraulic device 6, a flange 7, a threaded hole 8, and a locking device 9;

[0038] Among them, the door body 1 is a circular structure, the water passing surface is an arc surface, which is the same as the inner wall radian of the water distribution ring pipe. The non-water surface of the door body 1 is a circular plane. The water passing surface of the door body 1 is designed as an arc surface, which perfectly matches the radian of the inner wall of the water distribution ring pipe. This design can greatly improve the sealing performance between the door body 1 and the pipe wall. When the door body 1 is closed, a tight fit can be formed between the arc surface and the pipe wall, effectively preventing water leakage and ensuring the normal operation of the water distribution ring pipe system.

[0039] The connection between the door body 1 and the lower connecting arm 3, the lower connecting arm 3 and the upper connecting arm 2, and the upper connecting arm 2 and the fixing component on the water distribution ring pipe. One end of the lower connecting arm 3 is connected to the hydraulic device 6, and the other end of the hydraulic device 6 is connected to the upper connecting arm 2. Through the successive connections of the door body 1 and the lower connecting arm 3, the lower connecting arm 3 and the upper connecting arm 2, and the upper connecting arm 2 and the fixing component on the water distribution ring pipe, a stable mechanical structure is formed, which not only improves the stability of the overall structure but also enhances the ability to resist external forces and impacts.

[0040] There are two sets each of the upper connecting arm 2, the lower connecting arm, and the hydraulic device 6.

[0041] The hydraulic device 1 includes a cylinder part and a piston rod head. The cylinder part is connected to the bearing hole 21 on the upper connecting arm, and the piston rod head is connected to the bearing hole 33 on the lower connecting arm. A driving member 5 is provided on the bearing hole 22 of the upper connecting arm, and a transmission member 4 is provided on the upper connecting arm 2. The transmission member 4 is connected to the driving member 5. The driving member drives the upper connecting arm 2 to rotate, driving the hydraulic device 6 to rotate. The hydraulic device 6 assists in driving the lower connecting arm 3 to rotate, thereby driving the door body 1 to open and close. At the same time, the connection between the transmission member 4 and the driving member 5 not only realizes the effective transmission of power but also can share and balance the load and impact during the transmission process to a certain extent.

[0042] As Figure 2 shown, flange plates 7 are provided on both the outer and inner sides of the door body 1. The flange plate 7 includes an inner flange plate 71 and an outer flange plate 72. The inner flange plate 71 is provided on the inner side of the door body 1, and the outer flange plate 72 is provided on the outer side of the door body 1 and is a fixed component on the water distribution ring pipe. The inner flange plate 71 and the outer flange plate 72 are connected by bolts. The inner flange plate 71 and the outer flange plate 72 are tightly connected by bolts, forming a stable connection structure, improving the connection strength between the door body 1 and the lower connecting arm 3, and enhancing the stability of the overall structure.

[0043] The sealing surfaces of the inner flange plate 71 and the outer flange plate 72 are sealed by a rubber round bar. As a sealing material, the rubber round bar has excellent elasticity and plasticity, can closely fit the sealing surfaces of the inner flange plate and the outer flange plate, form an effective sealing barrier, and prevent water leakage.

[0044] As Figure 3 shown, the lower connecting arm 3 is provided with a lower bearing hole 31, a middle bearing hole 32, and an upper bearing hole 33 of the lower connecting arm. The upper connecting arm 2 is provided with an upper bearing hole 21 and a lower bearing hole 22 of the upper connecting arm. The lower bearing hole 31 of the lower connecting arm is connected to the door body 1, the middle bearing hole 32 of the lower connecting arm is connected to the lower bearing hole 22 of the upper connecting arm, the upper bearing hole 33 of the lower connecting arm is connected to the hydraulic device 6, and the upper bearing hole 21 of the upper connecting arm is connected to the fixed component on the water distribution ring pipe. Through the precise alignment and connection of multiple bearing holes, the stable connection between the door body 1, the lower connecting arm 3, the upper connecting arm 2, and the hydraulic device 6 is ensured.

[0045] As Figure 4 shown, a locking device 9 is provided on the door body 1 to ensure that the door body 1 remains stable in the closed state and avoid accidental opening due to external factors.

[0046] As Figure 5As shown, when the door body 1 is in the closed state, the door body 1 fits completely at the opening of the water distribution ring pipe, isolating the inside of the water distribution ring pipe from the outside to ensure that water flow will not leak. The locking device 9 is in the locked state, firmly locking the door body 1 in the closed position. Both the upper connecting arm 2 and the lower connecting arm 3 are in a relatively static state. The piston rod head of the hydraulic device 6 is in the retracted state, not applying an opening force to the door body 1. The cylinder part is fixed on the bearing hole of the upper connecting arm, providing stable support for possible opening operations.

[0047] As Figure 6 shown, when the door body 1 is in the inward-opening state, the door body 1 rotates inward to open the door body 1 of the water distribution ring pipe, allowing personnel to enter. At this time, the locking device 9 changes from the locked state to the unlocked state, stopping applying any locking force to the door body 1. Immediately afterwards, the driving part 5 on the upper connecting arm 2 starts to work, driving the upper connecting arm 2 to rotate around its fixed point. This rotation action is transmitted to the hydraulic device 6 through mechanical connection. The piston rod head of the hydraulic device 6 extends, assisting in driving the lower connecting arm 3 to rotate, and then driving the door body 1 to open inward. With the coordinated movement of the upper connecting arm 2 and the lower connecting arm 3, the door body 1 opens inward. During the whole process, the mechanical transmission and the hydraulic assistance are closely coordinated to achieve the efficient and reliable opening of the door body 1. The inward-opening design of the present utility model avoids the flood accident in the plant caused by the fracture of the connecting bolts. At the same time, the inward-opening access door hydraulic structure is adopted instead of manual operation, which can avoid mechanical injuries to the operators during the opening and closing processes of the door body, can maintain a larger opening degree, and increase the passing and safety of maintenance personnel.

[0048] Upon reading the above description, many embodiments and many applications beyond the provided examples will be obvious to those skilled in the art. Therefore, the scope of this teaching should not be determined with reference to the above description, but should be determined with reference to the full scope of the foregoing claims and the equivalents of these claims. For the sake of comprehensiveness, all articles and references including patent applications and published announcements are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended to abandon such subject matter, nor should it be considered that the applicant has not considered such subject matter as part of the disclosed utility model subject matter.

[0049] The above content is a further detailed description of the present utility model. It cannot be determined that the specific implementation of the present utility model is limited to this. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope determined by the claims submitted for the present utility model.

Claims

1. An inward-opening water distribution loop pipe access door structure, characterized in that, It includes a door body (1). The door body (1) is connected to the lower connecting arm (3), the lower connecting arm (3) is connected to the upper connecting arm (2), the upper connecting arm (2) is connected to the fixing component on the water distribution ring pipe. One end of the lower connecting arm (3) is connected to the hydraulic device (6), and the other end of the hydraulic device (6) is connected to the upper connecting arm (2). Flange plates (7) are provided on both the outer side and the inner side of the door body (1).

2. The internal opening type water distribution loop pipe access door structure according to claim 1, characterized in that, The lower connecting arm (3) is provided with a lower connecting arm lower bearing hole (31), a lower connecting arm middle bearing hole (32) and a lower connecting arm upper bearing hole (33). The upper connecting arm (2) is provided with an upper connecting arm upper bearing hole (21) and an upper connecting arm lower bearing hole (22).

3. The internal opening type water distribution loop pipe access door structure according to claim 2, characterized in that, The lower connecting arm lower bearing hole (31) is connected to the door body (1), the lower connecting arm middle bearing hole (32) is connected to the upper connecting arm lower bearing hole (22), and the lower connecting arm upper bearing hole (33) is connected to the hydraulic device (6).

4. The inside-opening type water distribution loop pipe access door structure according to claim 2, characterized in that, The upper connecting arm upper bearing hole (21) is connected to the hydraulic device (6) and the fixing component on the water distribution ring pipe.

5. The internal opening type water distribution loop pipe access door structure according to claim 1, characterized in that, The flange plate (7) includes an inner flange plate (71) and an outer flange plate (72). The inner flange plate (71) is arranged on the inner side of the door body (1), the outer flange plate (72) is arranged on the outer side of the door body (1), and the inner flange plate (71) is connected to the outer flange plate (72) by bolts.

6. The internal opening type water distribution loop pipe access door structure according to claim 5, characterized in that, The sealing surfaces of the inner flange plate (71) and the outer flange plate (72) are sealed by a rubber round bar.

7. The internal opening type water distribution loop pipe access door structure according to claim 1, characterized in that, The door body (1) is of a circular structure, the water passing surface is an arc surface, which has the same radian as the inner wall radian of the water distribution ring pipe. The non-water surface of the door body (1) is a circular plane, and a locking device (9) is provided on the door body (1).

8. The inner-opening water distribution loop pipe access door structure according to claim 1, characterized in that, The hydraulic device (6) includes a cylinder part and a piston rod head. The cylinder part is connected to the upper connecting arm upper bearing hole (21), and the piston rod head is connected to the lower connecting arm upper bearing hole (33).

9. The internal opening type water distribution loop pipe access door structure according to claim 8, characterized in that, A driving part (5) is provided on the upper connecting arm upper bearing hole (21), a transmission part (4) is provided on the upper connecting arm (2), and the transmission part (4) is connected to the driving part (5).

10. The internal opening type water distribution loop pipe access door structure according to claim 1, characterized in that, Two groups of the upper connecting arm (2), the lower connecting arm and the hydraulic device (6) are provided respectively.

Images