Electric power engineering foundation horizontal post-cast strip assembly type protection structure
By employing a combination design of screws, assembly plates, support springs, protective plates, and slotted ball joints in the horizontal post-cast strip of power engineering foundations, the problem of nut loosening was solved, achieving a stable connection and improved waterproof performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN SHENGTAI ENERGY DEVELOPMENT CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-08
AI Technical Summary
Existing prefabricated protective structures for horizontal post-cast strips in power engineering foundations are prone to loosening of nuts due to impact and vibration after long-term use, affecting the fixing effect.
The design incorporates a combination of components such as a screw, mounting plate, support spring, protective plate, and slots and balls. Excessive deformation stress is released through the wear of the support spring and the cooperation of the slots and balls. Combined with the limiting design of the nut, round hole, and round rod, the nut is prevented from loosening.
This achieves a stable connection between the assembly plate and the post-pouring strip, ensuring good waterproofing and protective performance, avoiding the problem of nuts loosening due to vibration, and improving the stability and service life of the structure.
Smart Images

Figure CN224213820U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of post-cast strip protection technology, specifically a prefabricated protection structure for horizontal post-cast strips in power engineering foundations. Background Technology
[0002] Post-pouring strips are concrete strips left at corresponding positions in foundation slabs, walls, and beams during building construction to prevent harmful cracks that may occur in reinforced concrete structures due to uneven shrinkage or settlement, in accordance with design or construction specifications.
[0003] In power engineering, the design of prefabricated protective structures for horizontal post-cast strips of foundations must take into account ease of construction, structural stability, waterproof performance, and the special requirements of power facilities.
[0004] A utility model patent with patent authorization announcement number CN221799260U discloses an assembled post-cast strip protection device, including a sloped buffer strip, a standard protective cover plate, and limiting pins; the width of the standard protective cover plate is greater than the width of the post-cast strip to be protected, and its bottom surface has a number of pin fixing grooves along the direction of the post-cast strip; the pin fixing grooves are distributed on both sides of the post-cast strip and the four corners of the standard protective cover plate; a buffer strip slot is opened on the bottom side of the standard protective cover plate; a sliding strip corresponding to the buffer strip slot is provided on one side of the sloped buffer strip.
[0005] However, the existing prefabricated protective structures for horizontal post-cast strips in power engineering foundations also have certain shortcomings. Although the existing prefabricated protective structures for horizontal post-cast strips in power engineering foundations use components such as screws and nuts to fix the assembly plate and the post-cast strip, the nuts are prone to loosening due to the influence of impact, vibration and other factors after long-term use. Utility Model Content
[0006] The purpose of this utility model is to provide a prefabricated protective structure for the horizontal post-cast strip of power engineering foundations. This solves the problem that although the existing prefabricated protective structures for the horizontal post-cast strip of power engineering foundations use components such as screws and nuts to fix the assembly plate and the post-cast strip, the nuts are prone to loosening due to the influence of impact, vibration and other factors after long-term use.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated protective structure for horizontal post-cast strips in power engineering foundations, comprising a post-cast strip body, a screw welded to the upper end of the post-cast strip body, an assembly plate slidably sleeved on the outer side of the screw, a compression frame fixedly connected to the lower end of the assembly plate, a waterproof partition fixedly connected to the lower end of the compression frame, the waterproof partition contacting the post-cast strip body, an assembly mechanism jointly provided on the screw and the assembly plate, a support spring welded to the upper end of the assembly plate, and a protective plate welded to the other end of the support spring.
[0008] Preferably, a support cylinder is fixedly connected to the upper end of the assembly plate, a support rod is slidably connected to the inner wall of the support cylinder, the support rod is fixedly connected to the protective plate, a slot is provided on the side of the support rod, an elastic block is bonded to the inner wall of the support cylinder, a retaining ball is bonded to the end face of the elastic block, and the retaining ball is slidably connected to the slot. Through the cooperation of the slot, retaining ball and other structural components, the excess deformation stress generated by the support spring can be worn away and released.
[0009] Preferably, multiple slots are provided, and the multiple slots are evenly distributed on the support rod. The design of the slots facilitates the use of the ball for wear treatment.
[0010] Preferably, three support springs are provided, and the three support springs are evenly distributed on the assembly plate. The support springs can be used to support the protective plate.
[0011] Preferably, the assembly mechanism includes a nut, and the nut is threadedly connected to the outer side of the screw. The nut contacts the assembly plate, and a round hole is formed on the surface of the nut. A fixing lug is fixedly connected to the upper end of the assembly plate. An elastic element is bonded to the end face of the fixing lug near the nut. A round rod is fixedly connected to the other end of the elastic element. The round rod is slidably connected to the round hole. Through the cooperation of the round hole and the round rod, the nut can be snapped in place to avoid the problem of the nut loosening due to vibration.
[0012] Preferably, multiple circular holes are provided, and the multiple circular holes are arranged in a circular array on the nut. The circular holes facilitate insertion and use with the circular rod.
[0013] Preferably, a guide plate is fixedly connected to the side of the round rod, and the guide plate is slidably connected to the fixed lug. The round rod can be moved and guided by the guide plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model uses screws, nuts and other structures to fix the assembly plate and the post-cast strip. With the action of the extrusion frame and waterproof partition, a good waterproof effect can be ensured. The screw can be limited by the structure of round hole and round rod to ensure the long-term stability of the screw.
[0016] 2. This utility model can provide impact protection for assembly plates and post-pouring strips through the action of supporting springs, protective plates and other structures. Under the wear action of slots, ball clamps and other structures, the excess deformation stress generated by the supporting springs can be worn away, avoiding the problem of additional vibration of the supporting springs. Attached Figure Description
[0017] Figure 1 This is a perspective view of the overall structure of this utility model;
[0018] Figure 2 For the present utility model Figure 1 A bottom view;
[0019] Figure 3 For the present utility model Figure 2 Schematic diagram of the main body excluding the post-cast strip;
[0020] Figure 4 For the present utility model Figure 1 A partial top view;
[0021] Figure 5 For the present utility model Figure 1 A front sectional view;
[0022] Figure 6 For the present utility model Figure 1 Enlarged view of point A;
[0023] Figure 7 For the present utility model Figure 5 Enlarged view of point B.
[0024] In the diagram: 1. Post-cast strip body; 2. Screw; 3. Assembly plate; 4. Extrusion frame; 5. Waterproof partition; 6. Assembly mechanism; 7. Support spring; 8. Protective plate; 9. Support cylinder; 10. Support rod; 11. Slot; 12. Elastic block; 13. Ball retainer; 61. Nut; 62. Round hole; 63. Fixing ear; 64. Elastic element; 65. Round rod; 66. Guide plate. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 A prefabricated protective structure for horizontal post-cast strips in power engineering foundations includes a post-cast strip body 1. A screw 2 is welded to the upper end of the post-cast strip body 1. An assembly plate 3 is slidably sleeved on the outer side of the screw 2. An extrusion frame 4 is fixedly connected to the lower end of the assembly plate 3. A waterproof partition 5 is fixedly connected to the lower end of the extrusion frame 4. The waterproof partition 5 is in contact with the post-cast strip body 1. A support spring 7 is welded to the upper end of the assembly plate 3. A protective plate 8 is welded to the other end of the support spring 7. Three support springs 7 are provided and evenly distributed on the assembly plate 3. The support springs 7 can support the protective plate 8.
[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 7 A support cylinder 9 is fixedly connected to the upper end of the assembly plate 3. A support rod 10 is slidably connected to the inner wall of the support cylinder 9. The support rod 10 is fixedly connected to the protective plate 8. A slot 11 is provided on the side of the support rod 10. Multiple slots 11 are provided and are evenly distributed on the support rod 10. The slots 11 facilitate the wear treatment of the ball 13. An elastic block 12 is bonded to the inner wall of the support cylinder 9. A ball 13 is bonded to the end face of the elastic block 12. The ball 13 is slidably connected to the slot 11. Through the cooperation of the slots 11, the ball 13 and other structural components, the excess deformation stress generated by the support spring 7 can be worn away and released.
[0028] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6An assembly mechanism 6 is provided on both the screw 2 and the assembly plate 3. The assembly mechanism 6 includes a nut 61. The nut 61 is threadedly connected to the outside of the screw 2. The nut 61 contacts the assembly plate 3. A round hole 62 is opened on the surface of the nut 61. A fixing lug 63 is fixedly connected to the upper end of the assembly plate 3. An elastic element 64 is bonded to the end face of the fixing lug 63 near the nut 61. A round rod 65 is fixedly connected to the other end of the elastic element 64. The round rod 65 is slidably connected to the round hole 62. Through the cooperation of the round hole 62 and the round rod 65, the nut 61 can be snapped in place to avoid the problem of the nut 61 vibrating and loosening.
[0029] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 Multiple round holes 62 are provided, and the multiple round holes 62 are arranged in a ring array on the nut 61. The round holes 62 are provided to facilitate the insertion and use of the round rod 65. A guide plate 66 is fixedly connected to the side of the round rod 65. The guide plate 66 is slidably connected to the fixing lug 63. The guide plate 66 is provided to guide the movement of the round rod 65.
[0030] The specific implementation process of this utility model is as follows: In use, by pulling the round rod 65 to move away from the screw 2, the guide plate 66 is driven to slide along the inner wall of the fixed ear 63, so that the elastic element 64 is deformed. Then, the assembly plate 3 is pushed to fit onto the outside of the screw 2, so that the waterproof partition 5 contacts the post-pouring strip body 1. Under the action of the extrusion frame 4, the good contact sealing of the waterproof partition 5 can be ensured. Then, the round rod 65 is released so that the elastic element 64 returns to its original deformation, so that the round rod 65 is pushed into the round hole 62 to limit the nut 61 and avoid the problem of the nut 61 vibrating and loosening.
[0031] The protective plate 8 is elastically supported by the support spring 7, which in turn protects the assembly plate 3 and the post-pouring strip body 1. When the protective plate 8 is moved under force, it can drive the support rod 10 to slide along the inner wall of the support cylinder 9, so that the inner wall of the slot 11 squeezes the ball 13, thereby pushing the elastic block 12 to deform. Finally, the ball 13 is disengaged from the slot 11. Under the action of force, the ball 13 slides along the surface of the support rod 10. When the ball 13 slides into the next slot 11, the elastic block 12 returns to its original shape, so as to push the ball 13 into the slot 11. This process is repeated. With the cooperation of the ball 13, slot 11 and other structures, the excess deformation stress generated by the support spring 7 can be worn away, avoiding the problem of excessive vibration of the support spring 7.
[0032] 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 prefabricated protective structure for horizontal post-cast strips in power engineering foundations, comprising a post-cast strip body (1), characterized in that: A screw (2) is welded to the upper end of the post-cast strip body (1). An assembly plate (3) is slidably sleeved on the outer side of the screw (2). An extrusion frame (4) is fixedly connected to the lower end of the assembly plate (3). A waterproof partition (5) is fixedly connected to the lower end of the extrusion frame (4). The waterproof partition (5) is in contact with the post-cast strip body (1). An assembly mechanism (6) is provided on both the screw (2) and the assembly plate (3). A support spring (7) is welded to the upper end of the assembly plate (3). A protective plate (8) is welded to the other end of the support spring (7).
2. The prefabricated protective structure for horizontal post-cast strips of power engineering foundations according to claim 1, characterized in that: The upper end of the assembly plate (3) is fixedly connected to a support cylinder (9), and a support rod (10) is slidably connected to the inner wall of the support cylinder (9). The support rod (10) is fixedly connected to the protective plate (8). A slot (11) is provided on the side of the support rod (10). An elastic block (12) is bonded to the inner wall of the support cylinder (9). A ball (13) is bonded to the end face of the elastic block (12). The ball (13) is slidably connected to the slot (11).
3. The prefabricated protective structure for horizontal post-cast strips of power engineering foundations according to claim 2, characterized in that: The card slots (11) are provided in multiple ways, and the multiple card slots (11) are evenly distributed on the support rod (10).
4. The prefabricated protective structure for horizontal post-cast strips of power engineering foundations according to claim 1, characterized in that: Three support springs (7) are provided, and the three support springs (7) are evenly distributed on the assembly plate (3).
5. The prefabricated protective structure for horizontal post-cast strips of power engineering foundations according to claim 1, characterized in that: The assembly mechanism (6) includes a nut (61). The nut (61) is threadedly connected to the outside of the screw (2). The nut (61) contacts the assembly plate (3). A round hole (62) is opened on the surface of the nut (61). A fixing lug (63) is fixedly connected to the upper end of the assembly plate (3). An elastic element (64) is bonded to the end face of the fixing lug (63) near the nut (61). A round rod (65) is fixedly connected to the other end of the elastic element (64). The round rod (65) is slidably connected to the round hole (62).
6. The prefabricated protective structure for horizontal post-cast strips of power engineering foundations according to claim 5, characterized in that: Multiple circular holes (62) are provided, and the multiple circular holes (62) are arranged in a ring array on the nut (61).
7. The prefabricated protective structure for horizontal post-cast strips of power engineering foundations according to claim 5, characterized in that: A guide plate (66) is fixedly connected to the side of the round rod (65), and the guide plate (66) is slidably connected to the fixing lug (63).
Citation Information
Patent Citations
Fabricated post-cast strip protection device
CN221799260U