Protective structure for post-cast strip of constructional engineering
By adjusting the spacing of the connecting plates through bevel gears and screw mechanisms, and combining the flip design of the cover plate and U-shaped frame, the problem of fixing the width of the waterproof membrane support frame is solved, enabling precise adaptation and rapid sealing of post-pouring strips of different widths, thus improving construction flexibility and safety.
Patent Information
- Application Number
- CN202520618621.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-03
AI Technical Summary
The existing support frame between the waterproof membrane and the post-pouring strip has a fixed width, which makes it difficult to adapt to post-pouring strips of different widths, resulting in inflexible support.
The mechanical transmission device uses bevel gears and screw mechanisms to adjust the spacing of the connecting plates. Combined with the flip design of the cover plate and U-shaped frame, it can achieve precise adaptation and rapid sealing of post-pouring strips of different sizes.
It improves the construction flexibility and versatility of protective structures, simplifies the operation process, and enhances safety and ease of use.
Smart Images

Figure CN223951983U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, and in particular to a protective structure for post-pouring strips in building engineering. Background Technology
[0002] In construction engineering, a post-cast strip is a temporary construction joint reserved to accommodate shrinkage deformation, temperature stress, or structural settlement after concrete pouring. Its main functions include reducing the risk of concrete cracking, regulating structural settlement, and simplifying the construction process.
[0003] A search revealed that application CN113445767B discloses a protective structure for post-cast strips in building construction, relating to the field of post-cast strip technology.
[0004] The waterproof membrane of this protective structure is covered at the post-pouring strip by the flip-up cover of the hinge seat, thus playing a sealing role. However, in the building design, the width of the post-pouring strip is also different due to different building requirements. Although the waterproof membrane can support post-pouring strips of different widths, the width of the support frame between the waterproof membrane and the post-pouring strip is relatively fixed during use, making it difficult to support the waterproof membrane at post-pouring strips of different widths. Utility Model Content
[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, where the width of the support frame between the waterproof membrane and the post-pouring strip is relatively fixed, making it difficult to support the waterproof membrane at post-pouring strips of different widths. Therefore, this utility model proposes a protective structure for post-pouring strips in building engineering.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A protective structure for post-cast strips in building construction includes a post-cast strip body and a steel reinforcement frame, with the steel reinforcement frame installed inside the post-cast strip body. The top of the post-cast strip body is provided with multiple protective structures, each consisting of a connecting frame, two connecting plates, two U-shaped frames, and two cover plates. By rotating and sliding the two cover plates on one side of the two U-shaped frames respectively, the two cover plates can be used to seal the steel reinforcement frame.
[0008] In one possible design, two lead screws are rotatably connected inside the connecting frame. A second bevel gear is fixedly sleeved at one end of each lead screw that is close to each other. A rotating column is rotatably connected inside the connecting frame. A first bevel gear is fixedly sleeved on the outer wall of the bottom end of the rotating column, and the first bevel gear meshes with two second bevel gears. Both connecting plates slide into the connecting frame. The two connecting plates are threaded onto the outer walls of the two lead screws, and the thread directions of the outer walls of the two lead screws are opposite.
[0009] In a possible design, one side of each of the two U-shaped frames is provided with four connecting heads, and the ends of the two connecting plates away from each other are fixedly connected with the U-shaped frames, the four connecting heads are in two groups, the two connecting heads in the same group are rotationally connected with one end of the U-shaped frame through a rotating shaft, one side of the connecting head is fixedly connected with a T-shaped sliding block, one side of the cover plate is provided with four T-shaped sliding grooves, and the four T-shaped sliding blocks are respectively slidably arranged in the T-shaped sliding grooves.
[0010] In a possible design, one side of each of the two U-shaped frames is provided with four connecting heads, and the ends of the two connecting plates away from each other are fixedly connected with the U-shaped frames, the four connecting heads are in two groups, the two connecting heads in the same group are rotationally connected with one end of the U-shaped frame through a rotating shaft, one side of the connecting head is fixedly connected with a T-shaped sliding block, one side of the cover plate is provided with four T-shaped sliding grooves, and the four T-shaped sliding blocks are respectively slidably arranged in the T-shaped sliding grooves.
[0011] In a possible design, the top of each of the two U-shaped frames is fixedly connected with two limiting blocks, one side of the cover plate is provided with two embedding grooves, one side of the cover plate is provided with two T-shaped matching grooves, the T-shaped matching grooves and the embedding grooves are in communication, and the limiting blocks are slidably matched with the T-shaped matching grooves and the embedding grooves.
[0012] In a possible design, the top of the post-cast strip body is provided with two water retaining tables, and the two U-shaped frames are correspondingly placed on the two water retaining tables.
[0013] In the present application, the post-cast strip body is placed in a reinforcing frame, the top of the post-cast strip body is provided with two water retaining tables, according to the distance between the two water retaining tables, the rotating column is rotated, the rotating column drives the first bevel gear to rotate, the first bevel gear is engaged with the two second bevel gears, the two second bevel gears respectively drive the two lead screws to rotate, the two lead screws are respectively correspondingly screwed with the two connecting plates, so as to adjust the distance between the two connecting plates, so that the two U-shaped frames are correspondingly placed on the two water retaining tables, the two cover plates are turned and opened above the reinforcing frame, the cover plates are turned through rotation between the four water retaining tables and the two limiting blocks respectively, in the turning process, the cover plates are inserted into the rotating grooves through the T-shaped blocks, and are limited through the straight grooves, when it is needed to fold the two cover plates, the cover plates are turned on the U-shaped frames through the connecting heads, and are adjusted according to the distance between the two cover plates to make the cover plates slide and match through the T-shaped sliding grooves and the T-shaped sliding blocks, and the limiting blocks are inserted into the embedding grooves, so as to slide, so that the two cover plates are in a horizontal state and cover above the reinforcing frame.
[0014] Beneficial effects: in the utility model, the first bevel gear and the two second bevel gears are engaged through the rotating column, the distance between the connecting plates is controlled by the lead screw, the protective structure can be accurately matched with post-cast strips and reinforcing frame layouts of different sizes, and the construction flexibility and universality are significantly improved.
[0015] The utility model discloses a kind of construction engineering post-cast strip protection structures, cover plate is hinged with U-shaped frame by connecting head, T-shaped slider, T-shaped sliding groove, the guidance design of arc groove and straight slot in limiting block and rotating groove is realized The quick switching of two states of turning open and close and horizontal closure, single person can complete the operation of covering, simultaneously, T-shaped slider slides in T-shaped sliding groove, according to the distance of two U-shaped frames, thereby adjust the distance of two cover plates, make two cover plates realize folding and covering, use more flexible.
[0016] In the utility model, the poor size adaptability, complex operation and insufficient safety of the traditional post-cast strip protection are solved by the combination of mechanical transmission and mechanism theory, so that the use of the protection structure is more flexible. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 A structural diagram of a construction engineering post-cast strip protection structure is provided for the utility model.
[0018] Figure 2 A structural diagram of a construction engineering post-cast strip protection structure is provided for the utility model.
[0019] Figure 3 A sectional view of a connecting frame of a construction engineering post-cast strip protection structure is provided for the utility model.
[0020] Figure 4 An exploded structural diagram of a U-shaped frame of a construction engineering post-cast strip protection structure is provided for the utility model.
[0021] In the figure: 1, post-cast strip body; 2, protection structure; 3, reinforcing frame; 4, water retaining platform; 5, cover plate; 6, connecting frame; 7, connecting plate; 8, U-shaped frame; 9, limiting block; 10, connecting head; 11, lead screw; 12, rotating column; 13, first bevel gear; 14, second bevel gear; 15, T-shaped block; 16, T-shaped slider; 17, T-shaped sliding groove; 18, T-shaped matching groove; 19, embedded groove; 20, rotating groove. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0023] Embodiment 1: refer to Figure 1 and Figure 2The utility model provides a kind of protective structure, including post-cast strip body 1 and reinforcing frame 3, and reinforcing frame 3 is installed in post-cast strip body 1, the top of post-cast strip body 1 is equipped with multiple protective structures 2, protective structure 2 is composed of connecting frame 6, two connecting plates 7, two U-shaped frames 8 and two cover plates 5, by two cover plates 5 respectively in the one side of two U-shaped frames 8 overturning sliding, can make two cover plates 5 realize capping above reinforcing frame 3. Reinforcing frame 3 is firmly installed in the inside of post-cast strip body 1, for the stability and support force of reinforcing structure, the top of post-cast strip body 1 is provided with multiple protective structures 2, these protective structures 2 are the key components of protecting post-cast strip from outside interference, each protective structure 2 is composed of connecting frame 6, two connecting plates 7, two U-shaped frames 8 and two cover plates 5, by ingenious design, two cover plates 5 can overturn sliding in the one side of two U-shaped frames 8, to realize effective capping above reinforcing frame 3, both protect reinforcing frame 3, and ensure the stability of post-cast strip whole.
[0024] Refer to Figure 3 Two lead screws 11 are rotatably connected in the connecting frame 6, one end of the two lead screws 11 close to each other is fixedly sleeved with a second bevel gear 14, a rotating column 12 is rotatably connected in the connecting frame 6, the outer wall of the bottom end of the rotating column 12 is fixedly sleeved with a first bevel gear 13, the first bevel gear 13 is engaged with the two second bevel gears 14, and the two connecting plates 7 are slidably extended into the connecting frame 6, the two connecting plates 7 are threadedly sleeved on the outer walls of the two lead screws 11, and the thread directions of the outer walls of the two lead screws 11 are opposite. When the rotating column 12 rotates, the two lead screws 11 rotate in opposite directions through the cooperation of the first bevel gear 13 and the two second bevel gears 14, so as to drive the two connecting plates 7 to move relatively or towards each other.
[0025] Refer to Figures 2 to 4 One side of the two U-shaped frames 8 is provided with four connecting heads 10, one end of the two connecting plates 7 away from each other is fixedly connected with the U-shaped frame 8, the four connecting heads 10 are in pairs, the two connecting heads 10 in the same group are rotatably connected with one end of the U-shaped frame 8 through a rotating shaft, one side of the connecting head 10 is fixedly connected with a T-shaped sliding block 16, one side of the cover plate 5 is provided with four T-shaped sliding grooves 17, and the four T-shaped sliding blocks 16 are slidably arranged in the T-shaped sliding grooves 17. The four connecting heads 10 are in pairs, and the two connecting heads 10 in each group are rotatably connected with one end of the U-shaped frame 8 through a rotating shaft. The T-shaped sliding blocks 16 on one side of the four connecting heads 10 are slidably connected with the four T-shaped sliding grooves 17 on one side of the cover plate 5. This design enables the cover plate 5 to move flexibly above the U-shaped frame 8.
[0026] Refer to Figure 3 And Figure 4The two U-shaped frames 8 are fixedly connected with two T-shaped blocks 15 on the sides away from each other, the two cover plates 5 are provided with rotating grooves 20 on the sides close to each other, and the T-shaped blocks 15 slide through the rotating grooves 20, the rotating grooves 20 are composed of arc grooves and straight grooves, the arc grooves and the straight grooves are communicated, and the arc grooves penetrate to one side of the cover plate 5. The T-shaped blocks 15 slide through the corresponding rotating grooves 20, and move in the arc grooves and the straight grooves in the rotating grooves 20, so that the cover plate 5 is limited after being turned up and opened.
[0027] With reference to Figure 4 The top of the two U-shaped frames 8 is fixedly connected with two limiting blocks 9, one side of the cover plate 5 is provided with two embedding grooves 19, one side of the cover plate 5 is provided with two T-shaped matching grooves 18, and the T-shaped matching grooves 18 and the embedding grooves 19 are communicated, and the limiting blocks 9 are in sliding fit with the T-shaped matching grooves 18 and the embedding grooves 19. The limiting blocks 9 and the T-shaped matching grooves 18 and the embedding grooves 19 are in sliding fit, which not only enhances the connection strength between the cover plate 5 and the U-shaped frame 8, but also makes the cover plate 5 more stable during sliding.
[0028] The present application can be used in the field of construction engineering, and can also be used in other fields applicable to the present application.
[0029] Embodiment 2: with reference to Figure 1 On the basis of embodiment one, an improved construction engineering post-pouring belt protection structure is applied to the field of construction engineering, and two water retaining tables 4 are placed on the top of the post-pouring belt body 1, and the two U-shaped frames 8 are correspondingly placed on the two water retaining tables 4. The arrangement of the water retaining tables 4 can effectively prevent water flow or other liquids from entering the post-pouring belt, thereby protecting the post-pouring belt and the steel reinforcement frame 3 inside from water damage.
[0030] The drawings in the specification of the present application are only schematic in nature and the sizes and shapes of the components shown therein are not actual limits but are only a kind of schematic representation. In the actual implementation process, the components can be reasonably configured and adjusted according to specific needs and actual conditions.
[0031] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A construction engineering post-cast strip protection structure, characterized in that, Include: Post-cast band body (1) and reinforcement frame (3), and the reinforcement frame (3) is installed in the post-cast band body (1), the top of the post-cast band body (1) is provided with a plurality of protective structures (2), the protective structure (2) is composed of connecting frame (6), two connecting plates (7), two U-shaped frames (8) and two cover plates (5), two cover plates (5) are respectively turned and slid on one side of two U-shaped frames (8), so that two cover plates (5) can be capped above the reinforcement frame (3).
2. The construction engineering post-cast strip protection structure according to claim 1, characterized in that, The connecting frame (6) is rotatably connected with two lead screws (11), one end of the two lead screws (11) is fixedly sleeved with a second bevel gear (14), the connecting frame (6) is rotatably connected with a rotating column (12), the bottom outer wall of the rotating column (12) is fixedly sleeved with a first bevel gear (13), and the first bevel gear (13) is engaged with the two second bevel gears (14), and the two connecting plates (7) are slidably extended into the connecting frame (6), the two connecting plates (7) are threadedly sleeved on the outer walls of the two lead screws (11), and the thread directions of the outer walls of the two lead screws (11) are opposite.
3. The construction engineering post-cast strip protection structure according to claim 1, characterized in that, One side of the two U-shaped frames (8) is provided with four connecting heads (10), and the ends of the two connecting plates (7) away from each other are fixedly connected with the U-shaped frames (8), the four connecting heads (10) are in two groups, the two connecting heads (10) in the same group are rotatably connected with one end of the U-shaped frame (8) through a rotating shaft, one side of the connecting head (10) is fixedly connected with a T-shaped sliding block (16), one side of the cover plate (5) is provided with four T-shaped sliding grooves (17), and the four T-shaped sliding blocks (16) are respectively slidably arranged in the T-shaped sliding grooves (17).
4. The construction engineering post-cast strip protection structure according to claim 1, characterized in that, The side away from each other of the two U-shaped frames (8) is fixedly connected with two T-shaped blocks (15), the side close to each other of the two cover plates (5) is provided with a rotating groove (20), and the T-shaped block (15) slidably penetrates the rotating groove (20), the rotating groove (20) is composed of an arc-shaped groove and a straight groove, the arc-shaped groove and the straight groove are communicated, and the arc-shaped groove penetrates one side of the cover plate (5).
5. The construction engineering post-cast strip protection structure according to claim 1, characterized in that, The top of the two U-shaped frames (8) is fixedly connected with two limiting blocks (9), one side of the cover plate (5) is provided with two embedding grooves (19), one side of the cover plate (5) is provided with two T-shaped matching grooves (18), the T-shaped matching groove (18) and the embedding groove (19) are communicated, and the limiting block (9) is slidably matched with the T-shaped matching groove (18) and the embedding groove (19).
6. The construction engineering post-cast strip protection structure according to claim 1, characterized in that, The top of the post-cast band body (1) is provided with two water retaining tables (4), and the two U-shaped frames (8) are correspondingly placed on the two water retaining tables (4).
Citation Information
Patent Citations
A protective structure for post-construction strips in building construction
CN113445767B