Prefabricated superposed beam preparation mold

Abstract

The utility model discloses a prefabricated superposed beam preparation mold which comprises a mold body, a rough surface prefabricated structure is arranged on the mold body, and the rough surface prefabricated structure is used for being matched with the mold body to synchronously achieve rough treatment of a combination surface of the mold body in the superposed beam prefabrication stage. The utility model aims to provide the prefabricated superposed beam preparation mold, when the prefabricated superposed beam is prepared, the size of the mold body can be adaptively adjusted according to the size, the shape and the like of the superposed beam, and meanwhile, the construction requirements of different joint surfaces can be met by selectively adjusting the styles, the number, the distribution conditions and the like of the galling strips. Due to the flexibility and the adaptability, the device has very high practical value and market popularization prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of reinforced concrete precast components, and specifically, to a preparation mold for precast composite beams. Background Art

[0002] In domestic and foreign engineering prefabricated building projects, the composite beam is the main prefabricated assembly method for structural beams. The composite beam mainly made of reinforced concrete is most widely used in building, municipal, and bridge projects. It is mainly composed of the precast part at the bottom of the beam and the post-poured part at the top of the beam. Therefore, different from pure cast-in-place beams and pure precast beams, its mechanical properties will be affected by the performance of the precast and cast-in-place joint surface.

[0003] Currently, the preparation method of reinforced concrete composite beams is derived from the preparation concept of pure cast-in-place. The mainstream joint surface treatment methods mainly include the following several types:

[0004] 1. Manual chiseling or mechanical chiseling: For the formed concrete components, the methods of manual chiseling or mechanical chiseling are usually adopted. This method can effectively remove the floating slurry and loose layer on the concrete surface and form a rough joint surface.

[0005] 2. Surface roughening treatment: Before the concrete reaches the initial setting state, use special tools to roughen the concrete surface to form uneven textures with a certain depth. The operation time of roughening should be comprehensively controlled according to factors such as the concrete mix ratio, temperature, and air humidity to ensure that the difference in unevenness of the rough surface is not less than 4 mm.

[0006] 3. Chemical water washing to expose aggregate: Use chemical retarders to brush the formwork surface or the surface of the newly poured concrete. After the component curing is completed, use high-pressure water to wash the concrete surface to expose the aggregate and form a rough surface. This method can select suitable retarder varieties according to design requirements to achieve an ideal rough surface effect.

[0007] However, the above three joint surface treatment methods are only for formed concrete components or basically formed concrete components (initial setting state), and additional processes are required, and they cannot be flexibly adjusted according to the actual needs of different joint surfaces. Content of the Utility Model

[0008] The purpose of the utility model is to provide a preparation mold for precast composite beams, which can synchronously realize the rough treatment of the joint surface during the precast stage of the composite beam, thereby improving the preparation efficiency, reducing the preparation cost, and can be flexibly adjusted according to the actual needs of different joint surfaces to solve the technical problems described in the background art.

[0009] To achieve the above purpose, the specific technical solutions adopted by the utility model are as follows:

[0010] A precast composite beam preparation mold, including a mold body, is characterized in that: a rough surface prefabrication structure is arranged on the mold body, and the rough surface prefabrication structure is used to cooperate with the mold body to synchronously realize the rough treatment of the joint surface during the prefabrication stage of the composite beam.

[0011] Furthermore, the mold body includes two bottom frames arranged oppositely in the beam width direction. A fixed-size bottom plate is selectively arranged on the bottom frames. On the outer side of each bottom frame, a rotatable side mold is hinged through a hinge seat. The two are connected by a pull rod, and a concrete pouring cavity is formed on the fixed-size bottom plate between the two rotatable side molds through two end templates. A reinforcing bar passing hole for the beam longitudinal reinforcement to pass through is reserved on the end template.

[0012] Furthermore, the distance between the two bottom frames is adjusted by a telescopic structure.

[0013] Furthermore, the rough surface prefabrication structure includes a mounting plate arranged along the beam length. The mounting plate is installed above the concrete pouring cavity of the mold body and can move in the beam width direction. A strip-shaped through groove adapted to the beam length is opened on the mounting plate. A number of lifting components that can adjust their positions in the beam length direction are arranged in the strip-shaped through groove. The lower end of the lifting component extends into the concrete pouring cavity, and a hair-raising bar is detachably installed.

[0014] Furthermore, sliding platforms adapted to the beam width are respectively arranged on the first and last pull rods of the mold body. The first and last plate ends of the mounting plate are respectively restricted in the corresponding sliding platforms by bolts.

[0015] Furthermore, the lifting component includes a lifting screw arranged in the hair-raising bar in the beam height direction. An adjusting nut is sleeved on the lifting screw, and the adjusting nut is placed on the strip-shaped through groove.

[0016] Furthermore, a limiting groove arranged in parallel with the strip-shaped through groove is also opened on the mounting plate. A limiting rod passing through the limiting groove in the beam height direction is connected to each hair-raising bar. The limiting rod is used to cooperate with the lifting component to always limit the hair-raising bar in the direction adapted to the beam width.

[0017] Furthermore, a first scale for indicating the lifting height of the hair-raising bar in the beam height direction is arranged on the limiting rod, and a second scale for indicating the adjusted position of the hair-raising bar in the beam length direction is arranged near the limiting groove.

[0018] The remarkable effect of the present utility model is:

[0019] (1) In the present utility model, an optimized design is carried out for the mold body. By adopting a bottom frame with adjustable spacing, a rotatable side mold and a linkage structure of tie rods, the adaptability and flexibility of the mold are greatly improved, enabling the mold to adapt to the preparation requirements of precast parts of composite beams with different sizes. At the same time, it is convenient for rapid demolding, significantly improving the preparation efficiency.

[0020] (2) The design of the rough surface precast structure is particularly ingenious. Through the strip-shaped through slots and lifting components on the mounting plate, the position of the hair-raising bars along the beam length and the depth along the beam height can be flexibly adjusted, ensuring the accuracy and consistency of the rough surface treatment and meeting the requirements of joint surface treatment. At the same time, the setting of the sliding table and the limiting slots ensures that the hair-raising bars are always calibrated in the direction adapting to the beam width, avoiding errors and deviations in the operation.

[0021] (3) The present utility model has repeatability and popularizability. When preparing precast composite beams, the size of the mold body can be adaptively adjusted according to the size, shape, etc. of the composite beam. At the same time, selectively adjusting the style, quantity and distribution of the hair-raising bars, etc. can also meet the construction requirements of different joint surfaces. This flexibility and adaptability make the present utility model have high practical value and market promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present utility model will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0023] Figure 1 is the perspective view (1) of the precast composite beam preparation mold in Embodiment 1;

[0024] Figure 2 is the end view of the precast composite beam preparation mold in Embodiment 1;

[0025] Figure 3 is the top view of the precast composite beam preparation mold in Embodiment 1;

[0026] Figure 4 is the right view of the precast composite beam preparation mold in Embodiment 1;

[0027] Figure 5 is the left view of the precast composite beam preparation mold in Embodiment 1;

[0028] Figure 6 is the perspective view (2) of the precast composite beam preparation mold in Embodiment 1;

[0029] Figure 7 is Figure 6 the partial enlarged view of part A in

[0030] Figure 8 is the end view of the precast composite beam preparation mold in Embodiment 2;

[0031] Markings in the figure:

[0032] 100 - Mold body, 101 - Bottom frame, 102 - Fixed - dimension bottom plate, 103 - Rotatable side mold, 104 - Tie rod, 105 - Telescopic structure, 106 - Locking nut, 107 - Clamping seat;

[0033] 200 - Rough - surface prefabricated structure, 201 - Installation plate, 202 - Strip - shaped through - slot, 203 - Lifting assembly, 204 - Scabbling strip, 205 - Slide table, 206 - Bolt, 2031 - Lifting screw rod, 2032 - Adjusting nut, 207 - Limit slot, 208 - Limit rod, 209 - First scale, 210 - Second scale. Specific implementation manners

[0034] In order to make the technical problems, technical solutions and advantages to be solved by the present utility model clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. 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. Therefore, it cannot be understood as a limitation to the present utility model. In addition, in the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0036] Figures 1 to 7 The first embodiment of the present utility model is shown: A precast composite beam preparation mold includes a mold body 100 and a rough - surface prefabricated structure 200. The rough - surface prefabricated structure 200 is arranged on the mold body 100, and is used to cooperate with the mold body 100 to synchronously realize the rough treatment of the joint surface during the precast stage of the composite beam. The mold body 100 is mainly composed of two bottom frames 101 arranged opposite to each other in the beam - width direction. The fixed - dimension bottom plate 102 is selectively arranged on the bottom frame 101 to meet the requirements of different beam widths. On the outer side of each bottom frame 101, a rotatable side mold 103 is hinged through a hinge seat, and the two are connected by a tie rod 104 to ensure the stability of the mold body 100. Between the two rotatable side molds 103, a concrete pouring cavity is formed on the fixed - dimension bottom plate 102 through two end templates, and a reinforcing bar passing hole for the beam longitudinal reinforcement to pass through is reserved on the end template to facilitate the fixing of the beam longitudinal reinforcement.

[0037] AsFigure 2 As shown in the figure, specifically, one end of the tie rod 104 is hinged to one of the rotatable side forms 103, a locking nut 106 is provided at the other end of the tie rod 104, and a clamping seat 107 is provided on the other rotatable side form 103. The tie rod 104 can be locked to the clamping seat 107 through the locking nut 106. After the composite beam is prepared, only by unlocking the locking nut 106 and rotating the rotatable side form 103 can the mold be quickly removed.

[0038] Please refer to Fig. 1 Figures 3 to 6 In this embodiment, the rough surface prefabricated structure 200 includes a mounting plate 201 arranged along the beam length. The mounting plate 201 is installed above the concrete pouring cavity of the mold body 100 and can move in the beam width direction to meet the requirements of joint surface treatment for different beam widths. A strip-shaped through groove 202 adapted to the beam length is formed in the mounting plate 201, and a plurality of lifting components 203 that can adjust their positions in the beam length direction are arranged in the strip-shaped through groove 202. The lower end of the lifting component 203 extends into the concrete pouring cavity, and a hair-raising strip 204 is detachably installed, which is used to form a rough joint surface during the concrete pouring process. Specifically, the lifting component 203 can move in the strip-shaped through groove 202 to adjust the position of the hair-raising strip 204 in the beam length, and can also change the lifting height to adjust the position of the hair-raising strip 204 in the beam height direction.

[0039] From Figure 1 it can be seen that in order to more precisely control the position and height of the hair-raising strip 204, the head and tail plate ends of the mounting plate 201 are respectively restricted in the corresponding sliding tables 205 through bolts 206. The sliding tables 205 are adapted to the beam width, which is convenient for the staff to calibrate the mounting plate 201 in the correct position. The lifting component 203 includes a lifting screw 2031 arranged in the hair-raising strip 204 in the beam height direction. An adjusting nut 2032 is sleeved on the lifting screw 2031. The adjusting nut 2032 is placed on the strip-shaped through groove 202. By rotating the adjusting nut 2032, the height of the hair-raising strip 204 can be precisely adjusted. At the same time, a limiting groove 207 arranged in parallel with the strip-shaped through groove 202 is also formed in the mounting plate 201. A limiting rod 208 penetrating the limiting groove 207 in the beam height direction is connected to each hair-raising strip 204 to ensure that the hair-raising strip 204 always maintains the correct direction during the lifting process, that is, it is adapted to the beam width direction.

[0040] As Figures 4 to 7 shown, in order to more intuitively understand the position and height of the hair-raising strip 204, a first scale 209 for indicating the lifting height of the hair-raising strip 204 in the beam height direction is provided on the limiting rod 208, and a second scale 210 for indicating the adjusted position of the hair-raising strip 204 in the beam length direction is also provided near the limiting groove 207, so that the operator can quickly and accurately adjust the position and height of the hair-raising strip 204 to meet the requirements of different joint surfaces.

[0041] It is worth mentioning that since the flocking strip 204 in the first embodiment adopts a detachable installation method, the flocking strip 204 that meets the requirements can be replaced according to the actual construction needs. Preferably, the bottom of the flocking strip 204 is set to be arc-shaped to facilitate demolding.

[0042] Figure 8 The second embodiment of the present invention is shown. Compared with the first embodiment, in order to further improve the flexibility and adaptability of the mold, the mold body 100 is also provided with a telescopic structure 105 for adjusting the distance between the two bottom frames 101 to meet the requirements of different beam widths. In some other embodiments, in order to realize the automatic adjustment of the distance between the bottom frames 101, the telescopic structure 105 can also be in the form of a cylinder, a hydraulic cylinder, a servo electric cylinder, etc.

[0043] In summary, in the present invention, the mold body 100 is optimized. The bottom frame 101 with adjustable distance, the rotatable side mold 103 and the linkage structure of the tie rod 104 are adopted, which greatly improves the adaptability and flexibility of the mold, enables the mold to meet the preparation requirements of the precast part of the composite beam with different sizes, and is convenient for rapid demolding, greatly improving the preparation efficiency; the design of the rough surface precast structure 200 is particularly ingenious. Through the strip-shaped through groove 202 and the lifting assembly 203 on the mounting plate 201, the position of the flocking strip 204 in the beam length and the depth in the beam height can be flexibly adjusted to ensure the accuracy and consistency of the rough surface treatment and meet the requirements of the joint surface treatment. At the same time, the setting of the sliding table 205 and the limiting groove 207 ensures that the flocking strip 204 is always calibrated in the direction adapting to the beam width, avoiding errors and deviations in the operation; the present invention has repeatability and popularization. When preparing the precast composite beam, the size of the mold body 100 can be adjusted adaptively according to the size, shape, etc. of the composite beam. At the same time, selectively adjusting the style, quantity and distribution of the flocking strips 204 can also meet the construction requirements of different joint surfaces. This flexibility and adaptability make the present invention have high practical value and market promotion prospects.

[0044] Finally, it should be noted that the disclosed technical solutions are only a preferred embodiment of the present invention. Of course, the scope of the rights of the present invention cannot be limited by this. Those of ordinary skill in the art can understand all or part of the processes of realizing the above embodiments, and the equivalent changes made according to the claims of the present invention still belong to the scope covered by the present invention.

Claims

1. A prefabricated composite beam preparation mold, comprising a mold body, characterized in that: A rough surface prefabricated structure is arranged on the mold body, and the rough surface prefabricated structure is used to cooperate with the mold body to synchronously realize the roughening of the joint surface thereof during the prefabrication stage of the composite beam.

2. The prefabricated composite beam preparation mold according to claim 1, characterized in that: The mold body includes two bottom frames arranged opposite to each other in the beam width direction, and a fixed-size bottom plate is selectively arranged on the bottom frame. A rotatable side mold is hinged on the outer side of each bottom frame through a hinge seat, and the two are connected by a pull rod. A concrete pouring mold cavity is formed on the fixed-size bottom plate through two end mold plates between the two rotatable side molds, and reinforcement holes are reserved on the end mold plates for the longitudinal reinforcement of the beam to pass through.

3. The prefabricated composite beam preparation mold according to claim 2, characterized in that: The distance between the two bottom frames is adjusted by a telescopic structure.

4. The mold for preparing a prefabricated composite beam according to any one of claims 1 to 3, characterized in that: The rough surface prefabricated structure includes a mounting plate arranged according to the length of the beam. The mounting plate is installed above the concrete pouring mold cavity of the mold body and can be moved in the direction of the beam width. A strip-shaped through groove that adapts to the length of the beam is opened on the mounting plate. A plurality of lifting components that can adjust the position in the direction of the beam length are arranged in the strip-shaped through groove. The lower end of the lifting component extends into the concrete pouring mold cavity and is detachably installed with a roughening strip.

5. The prefabricated composite beam preparation mold according to claim 4, characterized in that: Slideways adapted to the beam width are respectively arranged on the first and last pull rods of the mold body, and the first and last plate ends of the mounting plate are respectively restricted in the corresponding slideways by bolts.

6. The prefabricated composite beam preparation mold according to claim 5, characterized in that: The lifting assembly comprises a lifting screw rod arranged on the roughening strip in the direction of beam height, an adjusting nut is sleeved on the lifting screw rod, and the adjusting nut is placed on the strip-shaped through groove.

7. The prefabricated composite beam preparation mold according to claim 5 or 6, characterized in that: A limiting groove is also provided on the mounting plate and is arranged in parallel with the strip-shaped through groove. A limiting rod is also connected to each of the roughening strips and passes through the limiting groove in the direction of the beam height. The limiting rod is used to cooperate with the lifting assembly to always limit the roughening strip in the direction that adapts to the beam width.

8. The mold for preparing a prefabricated composite beam according to claim 7, characterized in that: A first scale for indicating the lifting height of the roughening strip in the beam height direction is arranged on the limiting rod, and a second scale for indicating the adjusting position of the roughening strip in the beam length direction is also arranged near the limiting groove.

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