Mould for producing grounding observation well
By designing a mold system that combines external and internal molds with height adjustment, distance adjustment, heating, and vibration mechanisms, the problem of mold offset during the production of grounding observation wells was solved, achieving efficient casting and demolding, and improving the safety and operational stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING JIAHE ELECTRIC POWER EQUIP
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-14
AI Technical Summary
The existing molds used for the production of grounding observation wells lack stability during the casting process, which makes the molds prone to displacement, affecting casting efficiency and equipment safety.
A mold system comprising an outer mold and an inner mold was designed. Combining height adjustment, distance adjustment, heating and vibration mechanisms, the system achieves mold mobility and high-frequency vibration through the cooperation of a moving frame, connecting plate, spring and limiting telescopic rod, thereby promoting concrete setting and demolding.
It improves casting and demolding efficiency, enhances mold stability and safety, and ensures the equipment's lightning resistance and the safety of operators.
Smart Images

Figure CN224116388U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and in particular to a mold for producing grounding observation wells. Background Technology
[0002] In recent years, many substation accidents in China have escalated due to lightning strikes, most of which are related to substandard grounding resistance in the grounding grid. The grounding grid plays a dual role as both working grounding and protective grounding. When a grounding resistance fault occurs, it increases the neutral point voltage deviation, causing the neutral point voltage to exceed the insulation requirements and resulting in equipment damage. During lightning strikes or lightning surges, the large current generates high residual voltage, threatening nearby equipment with backflashover and reducing the lightning withstand level of the conductors protected by the grounding grid, failing to meet design requirements and damaging the equipment. Furthermore, the quality of the grounding resistance directly affects the safety of substation operators and maintenance personnel. During the preparation of grounding observation wells, two molds need to be interlocked before cement is poured. However, if the interlocking molds are not fixed, they are easily displaced by the impact of the cement during pouring.
[0003] For example, the utility model patent with authorization announcement number CN217072757U discloses a mold for producing precast concrete inspection wells, which includes a first cylinder, a second cylinder, a first insert plate, and a second insert plate. The first cylinder has a first circular groove. The front and rear ends of the outer wall of the third cylinder are slidably connected to the first insert plate. The first insert plate has a second slot on the opposite side. The first insert plate has a circular hole on one side. The second insert plate has a second circular groove on one side. A spring is fixed on one side of the inner wall of the second circular groove. A limit post is fixed on one side of the spring. The second insert plate is inserted into the second slot. However, the mold has a single function and cannot promote the improvement of casting efficiency. In view of this, a mold for producing grounding observation wells is proposed. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a mold for producing grounded observation wells.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A mold for producing a ground observation well includes a base box. Side plates are provided on both outer walls of the base box. A height adjustment mechanism is provided at the bottom of each side plate. Movable frames are provided at both ends of the top outer wall of each side plate. A distance adjustment mechanism is provided between the movable frames. An outer mold is provided between the two ends of the movable frames. An inner mold is provided between the two ends of the outer mold. Both the outer and inner molds are hollow. A sealing plate is fixedly connected to the top of the outer mold. The inner mold is fixedly connected to the base box. A first heating mechanism is provided on the inner wall of the inner mold. A second heating mechanism is provided on the inner wall of the outer mold. A drain pipe is fixedly connected to one end of the outer wall of the base box.
[0007] Preferably, the height adjustment mechanism includes a base plate and a cylinder. The base plate is fixedly connected to the outer walls of both sides of the base box, the bottom of the cylinder is fixedly connected to the base plate, and the top of the cylinder is fixedly connected to the side plate.
[0008] Preferably, the distance adjustment mechanism includes a slider and a bidirectional threaded screw. A groove is provided on the top of the side plate. The slider is slidably connected to both ends of the inner wall of the groove. The slider and the bidirectional threaded screw are threadedly connected. A motor is fixedly connected to the bidirectional threaded screw. The motor is fixedly connected to the side plate. The top of the slider is fixedly connected to the movable frame.
[0009] Preferably, the movable frame is rotatably connected to a rotating plate, and connecting plates are fixedly connected to both sides of the outer mold. Multiple springs and limiting telescopic rods are fixedly connected between the connecting plates and the rotating plate, and a vibration motor is fixedly connected to the outer wall of the outer mold.
[0010] Preferably, the first heating mechanism includes a first liquid guide pipe and a second liquid guide pipe, a second liquid pump is fixedly connected to the inner wall of the bottom box, the top of the second liquid pump is fixedly connected to the second liquid guide pipe, and the first liquid guide pipe is fixedly connected to the bottom box and the inner mold respectively.
[0011] Preferably, the second heating mechanism includes a first liquid guiding hose and a second liquid guiding hose. A first liquid pump is fixedly connected to one end of the inner wall of the bottom box. The two ends of the first liquid guiding hose are fixedly connected to the outer mold and the first liquid pump, respectively. The two ends of the second liquid guiding hose are fixedly connected to the outer mold and the bottom box, respectively. An infusion pipe is fixedly connected to the outer wall of the outer mold. An insertion hole is provided at one end of the infusion pipe, and the insertion hole is opened on the outer wall of the outer mold.
[0012] Preferably, multiple heating tubes are fixedly connected to the inner wall of the bottom box, and an electrical control device is fixedly connected to the top of the bottom box, with the heating tubes and the electrical control device being electrically connected.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. By using an outer mold and an inner mold together, the observation well can be cast and shaped. By setting a distance adjustment mechanism between the moving frames, the moving frames and the outer mold can move towards or away from each other, which facilitates casting and demolding. By setting a first heating mechanism in the inner mold, the inside of the observation well can be heated, thereby promoting concrete setting. Similarly, by setting a second heating mechanism in the outer mold, the formation of the observation well can be further promoted.
[0015] 2. By setting multiple springs and limiting telescopic rods to connect and fix the connecting plate and the rotating plate, the outer mold can have a certain degree of mobility. By setting a vibration motor, the outer mold can have high-frequency vibration capability, which can promote the separation and demolding of the outer mold and the observation well. By setting a height adjustment mechanism at the bottom of the side plate, the side plate and the outer mold can have height adjustment capability, further improving demolding efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of a mold for producing a grounding observation well, as proposed in this utility model.
[0017] Figure 2 This is a schematic diagram of the bottom main structure of a mold for producing a grounding observation well, as proposed in this utility model.
[0018] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;
[0019] Figure 4 This is a cross-sectional structural diagram of a mold for producing a grounding observation well, as proposed in this utility model.
[0020] In the diagram: 1. Base box, 2. Electrical control equipment, 3. Drain pipe, 4. Side plate, 5. Slider, 6. Bidirectional threaded screw, 7. Slide groove, 8. Motor, 9. Moving frame, 10. Sealing plate, 11. Inner mold, 12. Outer mold, 13. Vibration motor, 14. Cylinder, 15. Base plate, 16. Rotating plate, 17. Limiting telescopic rod, 18. Connecting plate, 19. Spring, 20. First liquid guiding hose, 21. First liquid pump, 22. First liquid guiding pipe, 23. Heating pipe, 24. Second liquid pump, 25. Second liquid guiding pipe, 26. Second liquid guiding hose. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-4A mold for producing a grounding observation well includes a base box 1. Side plates 4 are provided on both outer walls of the base box 1. A height adjustment mechanism is provided at the bottom of each side plate 4. Movable frames 9 are provided at both ends of the top outer wall of each side plate 4. A distance adjustment mechanism is provided between the movable frames 9. An outer mold 12 is provided between the two ends of the movable frames 9. An inner mold 11 is provided between the two ends of the outer mold 12. Both the outer mold 12 and the inner mold 11 are hollow. A sealing plate 10 is fixedly connected to the top of the outer mold 12. The inner mold 11 is fixedly connected to the base box 1. A first heating mechanism is provided on the inner wall of the inner mold 11. The inner wall of the mold 12 is equipped with a second heating mechanism, and a drain pipe 3 is fixedly connected to the outer wall of one end of the bottom box 1. By setting the outer mold 12 and the inner mold 11 to work together, the observation well can be cast and shaped. By setting the distance adjustment mechanism between the moving frame 9, the moving frame 9 and the outer mold 12 can move towards each other or away from each other, which facilitates casting and demolding. By setting the first heating mechanism in the inner mold 11, the inside of the observation well can be heated, thereby promoting the setting of concrete. Similarly, by setting the second heating mechanism in the outer mold 12, the formation of the observation well can be further promoted.
[0023] In this utility model, the height adjustment mechanism includes a base plate 15 and a cylinder 14. The base plate 15 is fixedly connected to the outer walls of both sides of the base box 1. The bottom of the cylinder 14 is fixedly connected to the base plate 15, and the top of the cylinder 14 is fixedly connected to the side plate 4. The moving frame 9 is rotatably connected to a rotating plate 16. Both sides of the outer mold 12 are fixedly connected to connecting plates 18. Multiple springs 19 and limiting telescopic rods 17 are fixedly connected between the connecting plates 18 and the rotating plates 16. A vibration motor 13 is fixedly connected to the outer wall of the outer mold 12. By setting multiple springs 19 and limiting telescopic rods 17 to connect and fix the connecting plates 18 and the rotating plates 16, the outer mold 12 can have a certain degree of mobility. By setting the vibration motor 13, the outer mold 12 can have high-frequency vibration capability, which can promote the separation and demolding of the outer mold 12 and the observation well. By setting the height adjustment mechanism at the bottom of the side plate 4, the side plate 4 and the outer mold 12 can have height adjustment capability, further improving the demolding efficiency.
[0024] The distance adjustment mechanism includes a slider 5 and a bidirectional threaded screw 6. A groove 7 is provided on the top of the side plate 4. The slider 5 is slidably connected to both ends of the inner wall of the groove 7. The slider 5 is threadedly connected to the bidirectional threaded screw 6. A motor 8 is fixedly connected to the bidirectional threaded screw 6. The motor 8 is fixedly connected to the side plate 4. The top of the slider 5 is fixedly connected to the moving frame 9. By setting the distance adjustment mechanism between the moving frames 9, the moving frame 9 and the outer mold 12 can move towards or away from each other, which is convenient for casting and demolding.
[0025] The first heating mechanism includes a first liquid guide pipe 22 and a second liquid guide pipe 25. A second liquid pump 24 is fixedly connected to the inner wall of the base box 1. The top of the second liquid pump 24 is fixedly connected to the second liquid guide pipe 25. The first liquid guide pipe 22 is fixedly connected to the base box 1 and the inner mold 11 respectively. The second heating mechanism includes a first liquid guide hose 20 and a second liquid guide hose 26. A first liquid pump 21 is fixedly connected to one end of the inner wall of the base box 1. The two ends of the first liquid guide hose 20 are fixedly connected to the outer mold 12 and the first liquid pump 21 respectively. The two ends of the second liquid guide hose 26 are fixedly connected to the outer mold 12 and the inner mold 11 respectively. The mold 12 and the base box 1 are fixedly connected. An infusion pipe is fixedly connected to the outer wall of the outer mold 12. One end of the infusion pipe is provided with an insertion hole, which is opened on the outer wall of the outer mold 12. Multiple heating pipes 23 are fixedly connected to the inner wall of the base box 1. An electrical control device 2 is fixedly connected to the top of the base box 1. The heating pipes 23 and the electrical control device 2 are electrically connected. By setting the first heating mechanism in the inner mold 11, the inside of the observation well can be heated, thereby promoting the setting of concrete. Similarly, by setting the second heating mechanism in the outer mold 12, the formation of the observation well can be further promoted.
[0026] Working Principle: In the idle area of this device, all the above-mentioned components, which refer to structural parts, are connected. The specific connection method should refer to the working principle below, and the connection between each component is completed in the order of operation. The detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and will not explain it further. When using this device, the observation well can be cast and shaped by setting the outer mold 12 and the inner mold 11 together. The distance adjustment mechanism between the moving frame 9 can facilitate the movement of the moving frame 9 and the outer mold 12 towards or away from each other, which is convenient for casting and demolding. The first heating mechanism in the inner mold 11 can heat the inside of the observation well, thereby promoting the setting of concrete. Similarly, the second heating mechanism in the outer mold 12 can further promote the formation of the observation well.
[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A mold for producing a grounding observation well, comprising a base box (1), characterized in that, The bottom box (1) is provided with side plates (4) on both sides of the outer wall. The bottom of the side plate (4) is provided with a height adjustment mechanism. The top outer wall of the side plate (4) is provided with a movable frame (9) at both ends. The movable frame (9) is provided with a distance adjustment mechanism. The movable frame (9) is provided with an outer mold (12) between its two ends. The outer mold (12) is provided with an inner mold (11) between its two ends. The outer mold (12) and the inner mold (11) are both hollow. The top of the outer mold (12) is fixedly connected with a sealing plate (10). The inner mold (11) is fixedly connected to the bottom box (1). The inner wall of the inner mold (11) is provided with a first heating mechanism. The inner wall of the outer mold (12) is provided with a second heating mechanism. The bottom box (1) is fixedly connected with a drain pipe (3) on one end of its outer wall.
2. The mold for producing a grounding observation well according to claim 1, characterized in that, The height adjustment mechanism includes a base plate (15) and a cylinder (14). The base plate (15) is fixedly connected to the outer walls of both sides of the base box (1). The bottom of the cylinder (14) is fixedly connected to the base plate (15), and the top of the cylinder (14) is fixedly connected to the side plate (4).
3. The mold for producing a grounding observation well according to claim 1, characterized in that, The distance adjustment mechanism includes a slider (5) and a bidirectional threaded screw (6). A groove (7) is provided on the top of the side plate (4). The slider (5) is slidably connected to both ends of the inner wall of the groove (7). The slider (5) and the bidirectional threaded screw (6) are threadedly connected. A motor (8) is fixedly connected to the bidirectional threaded screw (6). The motor (8) is fixedly connected to the side plate (4). The top of the slider (5) is fixedly connected to the moving frame (9).
4. The mold for producing a grounding observation well according to claim 1, characterized in that, The movable frame (9) is rotatably connected to a rotating plate (16), and connecting plates (18) are fixedly connected to both sides of the outer mold (12). Multiple springs (19) and limiting telescopic rods (17) are fixedly connected between the connecting plate (18) and the rotating plate (16), and a vibration motor (13) is fixedly connected to the outer wall of the outer mold (12).
5. A mold for producing a grounding observation well according to claim 1, characterized in that, The first heating mechanism includes a first liquid guide pipe (22) and a second liquid guide pipe (25). A second liquid pump (24) is fixedly connected to the inner wall of the bottom box (1). The top of the second liquid pump (24) is fixedly connected to the second liquid guide pipe (25). The first liquid guide pipe (22) is fixedly connected to the bottom box (1) and the inner mold (11) respectively.
6. The mold for producing a grounding observation well according to claim 1, characterized in that, The second heating mechanism includes a first liquid guiding hose (20) and a second liquid guiding hose (26). A first liquid pump (21) is fixedly connected to one end of the inner wall of the base box (1). The two ends of the first liquid guiding hose (20) are fixedly connected to the outer mold (12) and the first liquid pump (21) respectively. The two ends of the second liquid guiding hose (26) are fixedly connected to the outer mold (12) and the base box (1) respectively. An infusion pipe is fixedly connected to the outer wall of the outer mold (12). An insertion hole is provided at one end of the infusion pipe. The insertion hole is opened on the outer wall of the outer mold (12).
7. The mold for producing a grounding observation well according to claim 1, characterized in that, Multiple heating tubes (23) are fixedly connected to the inner wall of the bottom box (1), and an electrical control device (2) is fixedly connected to the top of the bottom box (1). The heating tubes (23) and the electrical control device (2) are electrically connected.
Citation Information
Patent Citations
Die for producing prefabricated concrete inspection well
CN217072757U