Water conservancy project demonstration teaching aid
By designing water conservancy engineering demonstration teaching tools with detachable impeller and rotating rod structures, the problem of impeller not easy to disassemble in the existing technology is solved, and the rapid replacement of impellers of different shapes and water flow control is realized, which improves the practicality and reliability of the experiment.
Patent Information
- Application Number
- CN202421436613.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-23
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-23
AI Technical Summary
Among the existing hydropower demonstration teaching tools, the impeller used for power generation is not convenient to be disassembled, and the impeller of different shapes cannot be replaced, resulting in the inability to verify the impact of impeller of different shapes on power generation, and the overall practicality is poor.
A water conservancy engineering demonstration teaching aid was designed, adopting a detachable impeller and rotating rod structure. Through the coordination of positioning components and embedded discs, the impeller can be quickly disassembled and replaced, and a barrier assembly is set on the conduit to control the water flow.
It is possible to easily replace impellers of different shapes according to needs during work, so as to verify the impact of impellers of different shapes on power generation, and understand the impact of water flow size on power generation through water flow control, which improves the practicality of teaching aids.
Smart Images
Figure CN222826006U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of water conservancy engineering teaching aids, and in particular relates to a water conservancy engineering demonstration teaching aid. Background Art
[0002] Hydropower generation is the process of converting water energy into electrical energy. By building reservoirs, hydropower stations and other water conservancy facilities, water flows are gathered, and energy is generated by water level differences to drive the turbine generator sets to rotate, thereby generating electricity. In primary and secondary school teaching, it involves explaining the relevant knowledge of hydropower generation to students, so hydraulic engineering demonstration teaching aids are needed for teaching.
[0003] Publication No. "CN212112936U" discloses a water conservancy and power generation demonstration teaching aid, including a desktop, a water inlet trough is provided on the top of the desktop, a lower water tank is fixedly installed on the bottom of the desktop, the lower water tank is located directly below the water inlet trough, a water outlet cylinder is fixedly installed on the side wall of the lower water tank, the other end of the water outlet cylinder is connected with a conduit, the other end of the conduit passes through the desktop, an upper water tank is arranged above the desktop, the upper water tank is connected to the other end of the conduit, a water outlet chute is fixedly installed on the side wall of the upper water tank, a splash guard plate is fixedly connected to the outer wall of the upper water tank, a rectangular groove is provided on the inner wall of the upper water tank, a cavity is provided in the inner cavity of the outer wall of one side of the upper water tank, and a water baffle is slidably fitted in the cavity. The device can realize water conservancy and power generation demonstration teaching, and can judge the relationship between water flow rate and power generation by manually controlling the size of the water flow rate. At the same time, it can facilitate the repeated use of water, realize multiple experiments, and obtain stable experimental results. It has good market prospects.
[0004] The above-mentioned hydraulic power generation demonstration teaching aids have impellers for power generation that are not easy to disassemble. When verifying the applicability of impellers of different shapes to power generation, impellers of different shapes cannot be replaced to meet experimental requirements. The overall practicality of the teaching aids is poor, and a hydraulic engineering demonstration teaching aid is needed to assist in solving this problem. Utility Model Content
[0005] (1) Technical issues to be solved
[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a water conservancy engineering demonstration teaching aid, which can conveniently replace impellers of different shapes according to different work requirements during operation, thereby achieving the impact of impellers of different shapes on power generation.
[0007] (2) Technical solution
[0008] In order to solve the above technical problems, the utility model provides a water conservancy engineering demonstration teaching aid, which includes a support platform, a support frame is installed at the top of the support platform, a water pool is installed at the top of the support frame, a waste liquid pool is provided on the support platform, a water guide pipe for auxiliary waste liquid recovery is installed between the water pool and the waste liquid pool, a water pump for auxiliary water pumping is installed on the water guide pipe, a conduit is obliquely installed at the bottom of the water pool, one end of the conduit away from the water pool is located directly above the waste liquid pool, a mounting plate is installed on the side of the top of the support platform corresponding to the waste liquid pool, a rotating rod is rotatably arranged on the mounting plate, a positioning cavity is opened inside the rotating rod, a positioning assembly is installed in the positioning cavity, an impeller is clamped and installed on the rotating rod, a through hole for the rotating rod to pass through is opened at the center of the impeller, and positioning holes that cooperate with the positioning assembly for positioning are symmetrically opened in the through hole.
[0009] Furthermore, the outer side of the rotating rod is symmetrically provided with a limiting groove, the through hole of the impeller is symmetrically provided with a guide bar protruding therein, the positioning hole is provided on the guide bar, and the limiting groove is plugged in with the guide bar.
[0010] Furthermore, the positioning assembly includes a screw rod rotatably arranged in the positioning cavity, a sliding block is symmetrically sleeved on the screw rod, the screw rod and the sliding block are threadedly matched, a push plate is symmetrically slidably arranged in the positioning cavity, a support rod is obliquely hingedly installed between the sliding block and the push plate, and a positioning pin is symmetrically protruding on one side of the push plate away from the screw rod, the positioning pin is inserted into a limiting groove in the rotating rod, and the positioning pin is matched and plugged into the positioning hole.
[0011] Furthermore, the screw rod is symmetrically provided with two groups of threads with opposite spiral directions, and an embedding disk is fixed at one end of the screw rod, and the embedding disk is rotatably embedded on the rotating rod.
[0012] Furthermore, one end of the conduit is located on one side of the impeller, and a blocking component for assisting water flow control is installed at the middle section of the conduit.
[0013] Furthermore, the blocking assembly includes a second blocking plate vertically fixed inside the conduit, a first blocking plate is slidably embedded on one side of the second blocking plate, the top of the first blocking plate extends out of the conduit, a handle is fixed to one end of the first blocking plate extending out of the conduit, and connecting holes are equidistantly provided on the first blocking plate and the second blocking plate.
[0014] Furthermore, a base frame is installed at the bottom of the support platform, and leveling knobs are installed at four corners of the bottom of the base frame. The base frame and the leveling knobs are threadedly matched.
[0015] (3) Beneficial effects
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] The utility model cooperates with the rotating rod, the detachable impeller and the positioning assembly, etc., to reverse the embedded disk, and the embedded disk drives the screw rod to rotate. The screw rod and the sliding block are threadedly matched, so that the position of the sliding block is changed, so that the sliding block drives the support rod to move inward, and then the support rod drives the pushing plate to retract as a whole, so that the positioning pin is withdrawn from the positioning hole. At this time, the impeller can be disassembled as a whole and replaced with the corresponding impeller. The forward rotating embedded disk plugs the positioning pin into the corresponding positioning hole to complete the overall positioning of the impeller. Impellers of different shapes can be conveniently replaced according to different work requirements during work, thereby completing the influence of impellers of different shapes on power generation.
[0018] The utility model controls the communication size between the communication hole on the first blocking plate and the communication hole on the second blocking plate by pulling the handle through the blocking component arranged on the conduit, thereby facilitating understanding of the influence of the water flow size on the power generation in the water conservancy project. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 It is a schematic diagram of the structure of the utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the utility model after the mounting plate and the impeller are disassembled;
[0022] Figure 3 It is a longitudinal cross-sectional view of the rotating rod of the utility model;
[0023] Figure 4 It is a structural schematic diagram of the blocking component of the utility model.
[0024] The markings in the accompanying drawings are: 1. support platform; 2. base frame; 3. leveling knob; 4. support frame; 5. water tank; 6. water pipe; 7. waste liquid tank; 8. conduit; 9. blocking assembly; 10. first blocking plate; 11. second blocking plate; 12. handle; 13. connecting hole; 14. mounting plate; 15. rotating rod; 16. limiting groove; 17. positioning assembly; 171. push plate; 172. positioning pin; 173. screw rod; 174. sliding block; 175. support rod; 18. impeller; 19. guide strip; 20. positioning hole. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] This specific implementation method is a water conservancy project demonstration teaching aid, such as Figure 1 As shown, the water conservancy project demonstration teaching aid includes a support platform 1, a support frame 4 is installed at the top of the support platform 1, a water pool 5 is installed at the top of the support frame 4, a waste liquid pool 7 is opened on the support platform 1, a water pipe 6 for assisting waste liquid recovery is installed between the water pool 5 and the waste liquid pool 7, a water pump for assisting water pumping is installed on the water pipe 6, a guide tube 8 is installed obliquely at the bottom of the water pool 5, a base frame 2 is installed at the bottom of the support platform 1, and leveling knobs 3 are installed at the four bottom corners of the base frame 2. The base frame 2 and the leveling knob 3 are threadedly matched, and the leveling knob 3 is arranged to facilitate the adjustment of the overall levelness of the base frame 2 during work.
[0027] Reference Figure 1 and Figure 2 As shown, a mounting plate 14 is installed on the top of the support platform 1 corresponding to the side of the waste liquid pool 7, and a rotating rod 15 is rotatably arranged on the mounting plate 14. A limiting groove 16 is symmetrically arranged on the outer side of the rotating rod 15, and a guide bar 19 is symmetrically protruding in the penetration hole of the impeller 18. The positioning hole 20 is arranged on the guide bar 19, and the limiting groove 16 and the guide bar 19 are plugged in and matched with each other. Through the cooperation between the setting of the limiting groove 16 and the guide bar 19, it can play an auxiliary guiding role when the impeller 18 is installed, so that the subsequent positioning component 17 can be stably fixed.
[0028] Reference Figure 2 and Figure 3As shown, a positioning cavity is provided inside the rotating rod 15, a positioning assembly 17 is installed in the positioning cavity, an impeller 18 is clamped and installed on the rotating rod 15, a through hole for the rotating rod 15 to pass through is provided at the center of the impeller 18, and positioning holes 20 for cooperating with the positioning assembly 17 for positioning are symmetrically provided in the through hole, and the positioning assembly 17 includes a screw rod 173 rotatably arranged in the positioning cavity, a sliding block 174 is symmetrically sleeved and installed on the screw rod 173, and two sets of threads with opposite spiral directions are symmetrically provided on the screw rod 173. An embedded disk is fixed at one end of 3, and the embedded disk is rotatably embedded and installed on the rotating rod 15. The screw rod 173 and the sliding block 174 are threadedly matched, and a push plate 171 is symmetrically slidably arranged in the positioning cavity. A support rod 175 is obliquely hingedly installed between the sliding block 174 and the push plate 171. A positioning pin 172 is symmetrically protruded on one side of the push plate 171 away from the screw rod 173. The positioning pin 172 is penetrated at the limiting groove 16 in the rotating rod 15, and the positioning pin 172 is matched and plugged with the positioning hole 20.
[0029] By the cooperation between the arranged rotating rod 15, the detachable impeller 18 and the positioning assembly 17, the embedded disk is reversed, and the embedded disk drives the screw rod 173 to rotate. The screw rod 173 and the sliding block 174 are threadedly matched, so that the position of the sliding block 174 is changed, so that the sliding block 174 drives the support rod 175 to move inward, and then the support rod 175 drives the pushing plate 171 to retract as a whole, so that the positioning pin 172 withdraws from the positioning hole 20. At this time, the impeller 18 can be disassembled as a whole and replaced with the corresponding impeller 18. The forward rotating embedded disk will insert the positioning pin 172 into the corresponding positioning hole 20, thereby completing the overall positioning processing of the impeller 18, and can be conveniently replaced with impellers 18 of different shapes according to different work requirements during work, thereby completing the influence of impellers 18 of different shapes on the power generation.
[0030] Reference Figure 1 and Figure 4 As shown, one end of the conduit 8 is located on one side of the impeller 18, and a blocking component 9 for assisting water flow control is installed in the middle section of the conduit 8. The blocking component 9 includes a second blocking plate 11 vertically fixed inside the conduit 8, and a first blocking plate 10 is slidably embedded on one side of the second blocking plate 11. The top of the first blocking plate 10 extends out of the conduit 8, and a handle 12 is fixed to one end of the first blocking plate 10 extending out of the conduit 8, and connecting holes 13 are equidistantly provided on the first blocking plate 10 and the second blocking plate 11.
[0031] By pulling the handle 12 through the blocking assembly 9 provided on the conduit 8, the connection size between the connecting hole 13 on the first blocking plate 10 and the connecting hole 13 on the second blocking plate 11 is controlled, so as to facilitate understanding of the influence of the water flow size on the power generation in the water conservancy project.
[0032] Working principle:
[0033] During operation, when the impeller 18 needs to be replaced, the embedded disk is reversed, and the embedded disk drives the screw rod 173 to rotate. The screw rod 173 and the sliding block 174 are threadedly matched, so that the position of the sliding block 174 changes, so that the sliding block 174 drives the support rod 175 to move inward, and then the support rod 175 drives the push plate 171 to retract as a whole, so that the positioning pin 172 withdraws from the positioning hole 20. At this time, the impeller 18 can be disassembled as a whole and replaced with the corresponding impeller 18. The embedded disk is rotated forward to insert and install the positioning pin 172 in the corresponding positioning hole 20, thereby completing the overall positioning processing of the impeller 18.
[0034] During operation, the liquid in the water pool 5 flows down through the conduit 8 to reach the impeller 18, driving the impeller 18 to rotate, thereby rotating the rotating rod 15, so that the generator connected to the rotating rod 15 on the mounting plate 14 rotates as a whole, thereby completing the demonstration of the overall working principle of hydropower generation in the water conservancy project. By pulling out the first baffle plate 10, the connection size between the connecting hole 13 on the first baffle plate 10 and the connecting hole 13 on the second baffle plate 11 is controlled, so as to facilitate understanding of the influence of the size of the water flow on the power generation in the water conservancy project. By replacing impellers 18 of different shapes, the influence of impellers 18 of different shapes on the power generation can be verified.
[0035] All technical features in this embodiment can be freely combined according to actual needs.
[0036] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A water conservancy project demonstration teaching aid, comprising a support platform (1), characterized in that: A support frame (4) is installed at the top of the support platform (1), a water pool (5) is installed at the top of the support frame (4), a waste liquid pool (7) is opened on the support platform (1), a water pipe (6) for assisting waste liquid recovery is installed between the water pool (5) and the waste liquid pool (7), a water pump for assisting water pumping is installed on the water pipe (6), a guide tube (8) is installed obliquely at the bottom of the water pool (5), an end of the guide tube (8) away from the water pool (5) is located directly above the waste liquid pool (7), and the support platform (1) is provided with a waste liquid pool (7). A mounting plate (14) is mounted on the top of the platform (1) on the side of the waste liquid pool (7), a rotating rod (15) is rotatably mounted on the mounting plate (14), a positioning cavity is provided inside the rotating rod (15), a positioning assembly (17) is installed in the positioning cavity, an impeller (18) is clamped and mounted on the rotating rod (15), a through hole for the rotating rod (15) to pass through is provided at the center of the impeller (18), and positioning holes (20) are symmetrically provided in the through hole to cooperate with the positioning assembly (17) for positioning.
2. A water conservancy project demonstration teaching aid according to claim 1, characterized in that: The outer side of the rotating rod (15) is symmetrically provided with a limiting groove (16); the through hole of the impeller (18) is symmetrically provided with a guide bar (19) protruding therefrom; the positioning hole (20) is provided on the guide bar (19); and the limiting groove (16) and the guide bar (19) are plugged in a matching manner.
3. A water conservancy project demonstration teaching aid according to claim 2, characterized in that: The positioning assembly (17) includes a screw rod (173) rotatably arranged in the positioning cavity, a sliding block (174) is symmetrically sleeved on the screw rod (173), the screw rod (173) and the sliding block (174) are threadedly matched, a push plate (171) is symmetrically slidably arranged in the positioning cavity, a support rod (175) is obliquely hingedly installed between the sliding block (174) and the push plate (171), and a positioning pin (172) is symmetrically protruding on one side of the push plate (171) away from the screw rod (173), the positioning pin (172) is inserted into the limiting groove (16) in the rotating rod (15), and the positioning pin (172) is matched and plugged with the positioning hole (20).
4. A water conservancy project demonstration teaching aid according to claim 3, characterized in that: The screw rod (173) is symmetrically provided with two groups of threads with opposite spiral directions. An embedding disk is fixed to one end of the screw rod (173), and the embedding disk is rotatably embedded on the rotating rod (15).
5. A water conservancy project demonstration teaching aid according to claim 1, characterized in that: One end of the conduit (8) is located on one side of the impeller (18), and a blocking component (9) for assisting water flow control is installed at the middle section of the conduit (8).
6. A water conservancy project demonstration teaching aid according to claim 5, characterized in that: The blocking assembly (9) comprises a second blocking plate (11) vertically fixed inside the conduit (8); a first blocking plate (10) is slidably embedded and installed on one side of the second blocking plate (11); the top of the first blocking plate (10) extends out of the conduit (8); a handle (12) is fixed to one end of the first blocking plate (10) extending out of the conduit (8); and connecting holes (13) are equidistantly provided on the first blocking plate (10) and the second blocking plate (11).
7. A water conservancy project demonstration teaching aid according to claim 1, characterized in that: A base frame (2) is installed at the bottom of the support platform (1), and leveling knobs (3) are installed at the four corners of the bottom of the base frame (2), and the base frame (2) and the leveling knobs (3) are threadedly matched.