A concrete lintel prefabricated mold capable of adjusting the position and shape of reserved holes

Abstract

The utility model discloses a concrete lintel prefabricated mould of adjustable reserved hole position and shape, include: bottom form board, first side form board and second side form board are perpendicular with bottom form board, and are spliced and form the vertical closed rectangular frame structure, and bottom form board and first side form board and second side form board are all wooden form board, be provided with fixed assembly on bottom form board, and fixed assembly outside sets up hole pre -insert block, and bottom form board with first side form board and second side form board between setting has installation structure, bottom form board inside is provided with the clamping groove and the slot of entering, and the slot of entering is linked together with the clamping groove, and the clamping groove sets up trapezoidal structure, and the slot of entering sets up rectangular structure, and fixed assembly bottom slide setting in the clamping groove inside. The device of the utility model can adjust the hole position and shape flexibly, satisfy the diversification layout demand of the wall -penetrating pipeline in different function building, avoid the component damage caused by the later hole.

Description

Technical Field

[0001] This utility model belongs to the field of precast concrete beam construction technology, and more specifically, it relates to a precast concrete lintel mold with adjustable position and shape of reserved holes. Background Technology

[0002] The construction of small lintels is particularly common during the secondary masonry stage of building construction, especially in areas requiring pre-embedded conduits, such as near electrical boxes for incoming power and communication lines. These lintel locations are unique due to the dense arrangement of conduits; to save space and maintain the aesthetics of the walls, the conduits are usually installed inside the walls. However, the diverse types and varying quantities of conduits in buildings with different functions place high demands on the accuracy and flexibility of the pre-drilled holes at the lintel locations.

[0003] In traditional methods, lintel fabrication is often limited by the fixed shape of the concrete casting formwork, leading to the common practice of post-drilling holes in the cast and cured concrete lintel specimens. However, the high strength and density of concrete make post-drilling extremely difficult, time-consuming, labor-intensive, and unable to guarantee the desired effect, potentially even causing cracking of the concrete structure and severely impacting its functionality. Furthermore, post-drilling methods lack flexibility, failing to meet the diverse location and shape requirements of different through-wall pipes, and have low reuse rates, resulting in resource waste. Utility Model Content

[0004] The purpose of this invention is to provide a precast concrete lintel mold with adjustable reserved hole position and shape to solve the problem that the post-opening method mentioned in the background art is difficult to meet the diverse needs of different through-wall pipelines in terms of position and shape.

[0005] To achieve the above objectives, this utility model provides a precast concrete lintel mold with adjustable pre-drilled hole position and shape, comprising: a bottom template, first side templates on both sides of the bottom template, and second side templates on the other two sides of the bottom template, the first side templates and the second side templates being perpendicular to the bottom template and assembled to form a vertically closed rectangular frame structure, the bottom template, the first side templates and the second side templates being wooden templates; a fixing component is installed on the bottom template, a hole pre-plugging block is provided on the outside of the fixing component, and an installation structure is provided between the bottom template and the first side templates and the second side templates; a slot and a groove are provided inside the bottom template, the groove and the slot are connected, the slot is a trapezoidal structure and the groove is a rectangular structure, and the bottom of the fixing component is slidably disposed inside the slot.

[0006] In a preferred embodiment, the height of both the slot and the insertion slot is half the thickness of the bottom template.

[0007] In a preferred embodiment, the fixing component includes: a plug, a fixing screw, a washer, and a locking nut; the plug is slidably disposed inside the slot, the fixing screw is fixedly disposed on the top of the plug, and the height of the fixing screw is one-third of the height of the beam; the washer is sleeved on the outside of the fixing screw, and the bottom of the washer is in contact with the top of the bottom template; the locking nut is disposed on the outside of the fixing screw through a threaded connection, and the bottom of the locking nut is in contact with the top of the washer.

[0008] In a preferred embodiment, the pre-filled hole block is inserted outside the fixing screw, and the bottom of the pre-filled hole block is in contact with the top of the bottom template.

[0009] In a preferred embodiment, positioning grooves and positioning protrusions are provided on the bottom template, the first side template, and the second side template. The positioning protrusions on the bottom template are inserted into the positioning grooves on the first side template and the second side template, the positioning protrusions on the first side template and the second side template are inserted into the positioning grooves on the bottom template, and the positioning protrusions on the first side template are inserted into the positioning grooves on the second side template.

[0010] In a preferred embodiment, the mounting structure includes: a first corner bracket, a second corner bracket, a third corner bracket, and a fourth corner bracket. The first corner bracket is fixed to the connection between the bottom template and the first side template and the second side template by screws. The second corner bracket is fixed to the connection between the bottom template and the first side template by screws. The third corner bracket is fixed to the connection between the bottom template and the second side template by screws. The fourth corner bracket is fixed to the connection between the first side template and the second side template by screws.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, by setting a trapezoidal slot and insert block, as well as a washer and a locking nut, the horizontal position of the fixing screw can be adjusted, thereby adjusting the placement position of the hole pre-filling block; at the same time, the hole pre-filling block can be quickly and easily shaped according to the shape of the reserved hole; thus, the hole position and shape can be flexibly adjusted to meet the diverse layout requirements of through-wall pipelines in different functional buildings, and avoid component damage caused by post-drilling.

[0012] 2. In this utility model, the hole pre-filling block can be used to directly leave holes, which can save the traditional post-drilling process and solve the problems of post-drilling being time-consuming, labor-intensive, and prone to causing concrete cracking. At the same time, it ensures that the hole edges are neat and improves the overall strength and functionality of the lintel component.

[0013] 3. In this utility model, the bottom template, the first side template, the second side template, the insert block and the fixing screw can all be made from waste wood template scraps, steel bar ends and other materials on the construction site. The hole pre-filling block can be made of extruded polystyrene board or foam waste, so as to realize the recycling and reuse of waste resources and meet the green construction standards.

[0014] 4. In this utility model, the bottom template, the first side template, and the second side template are precisely and quickly spliced ​​together through positioning grooves, positioning protrusions, and installation structures; at the same time, the fixing components adopt a sliding locking structure of insert blocks and locking nuts, which supports rapid on-site assembly and disassembly, thereby enhancing installation efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the disassembled structure of the bottom template, the first side template, and the second side template of this utility model; Figure 3 This is a cross-sectional structural diagram of the bottom template of this utility model; Figure 4 This is a schematic diagram of the upper surface structure of the bottom template of this utility model; Figure 5 This is a structural schematic diagram of the fixing component of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Bottom template; 101. First side template; 102. Second side template; 103. Positioning groove; 104. Positioning protrusion; 105. Slot; 106. Insertion slot; 2. Installation structure; 201. First corner bracket; 202. Second corner bracket; 203. Third corner bracket; 204. Fourth corner bracket; 3. Fixing components; 301. Insert block; 302. Fixing screw; 303. Washer; 304. Locking nut; 4. Hole pre-filling block. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0018] Example 1: As attached Figure 1 To be continued Figure 5As shown, the precast concrete lintel mold of this utility model with adjustable reserved hole position and shape includes a bottom template 1, with first side templates 101 on both sides of the bottom template 1 and second side templates 102 on the other two sides. The bottom template 1, the first side templates 101, and the second side templates 102 are all perpendicular to each other, and all three are made of wood. A fixing component 3 is installed on the bottom template 1, and a hole pre-plugging block 4 is provided on the outside of the fixing component 3. An installation structure 2 is installed between the bottom template 1, the first side templates 101, and the second side templates 102. The bottom template 1 has a slot 105 and a groove 106 inside, and the groove 106 communicates with the slot 105. The slot 105 is trapezoidal, and the groove 106 is rectangular. The bottom of the fixing component is slidably disposed inside the slot 105. The bottom template 1, the first side template 101, the second side template 102, the insert block 301 and the fixing screw 302 can all be made by grinding and cutting waste wooden template scraps, steel bar ends and other materials on the construction site. The hole pre-filling block 4 can be made of extruded polystyrene board or foam waste to realize the recycling and reuse of waste resources.

[0019] In this embodiment, as shown in the appendix Figure 3 To be continued Figure 5 As shown, the heights of both the slot 105 and the insertion slot 106 are half the thickness of the bottom template 1. The fixing assembly 3 includes: an insert block 301, a fixing screw 302, a washer 303, and a locking nut 304. The insert block 301 is slidably disposed inside the slot 105. The fixing screw 302 is fixedly disposed on the top of the insert block 301, and its height is one-third of the beam height. The washer 303 is sleeved on the outside of the fixing screw 302, with its bottom fitting against the top of the bottom template 1. The locking nut 304 is threadedly disposed on the outside of the fixing screw 302, with its bottom fitting against the top of the washer 303. The pre-filled hole block 4 is inserted outside the fixing screw 302, and the bottom of the pre-filled hole block 4 is in contact with the top of the bottom template 1. The pre-filled hole block 4 is a material with a certain hardness that can be quickly grooved, such as extruded polystyrene board, foam material, etc. The pre-filled hole block 4 can be quickly and easily shaped according to the shape of the reserved hole. By setting the trapezoidal slot 105 and the insert block 301, as well as the washer 303 and the locking nut 304, the horizontal position of the fixing screw 302 can be adjusted, thereby adjusting the placement position of the pre-filled hole block 4. At the same time, the pre-filled hole block 4 can be quickly and easily shaped according to the shape of the reserved hole, thereby flexibly adjusting the position and shape of the hole.

[0020] Example 2: Based on Embodiment 1, positioning grooves 103 and positioning protrusions 104 are provided on the bottom template 1, the first side template 101, and the second side template 102. The positioning protrusions 104 on the bottom template 1 are inserted into the positioning grooves 103 on the first side template 101 and the second side template 102. The positioning protrusions 104 on the first side template 101 and the second side template 102 are inserted into the positioning grooves 103 on the bottom template 1, and the positioning protrusions 104 on the first side template 101 are inserted into the positioning grooves 103 on the second side template 102. By using the hole pre-filling block 4, holes can be directly left, eliminating the traditional post-drilling chiseling process and solving the problems of time-consuming and labor-intensive post-drilling, which is prone to causing concrete cracking. At the same time, it ensures that the edges of the holes are neat, improving the overall strength and functionality of the lintel component.

[0021] Furthermore, the installation structure 2 includes: a first corner bracket 201, a second corner bracket 202, a third corner bracket 203, and a fourth corner bracket 204. The first corner bracket 201 is fixed to the connection between the bottom template 1 and the first side template 101 and the second side template 102 by screws. The second corner bracket 202 is fixed to the connection between the bottom template 1 and the first side template 101 by screws. The third corner bracket 203 is fixed to the connection between the bottom template 1 and the second side template 102 by screws. The fourth corner bracket 204 is fixed to the connection between the first side template 101 and the second side template 102 by screws. The bottom template 1, the first side template 101, and the second side template 102 are precisely and quickly assembled through the positioning groove 103, the positioning protrusion 104, and the installation structure 2.

[0022] Example 3: The specific method of using the device in this embodiment is described below: In use, the bottom template 1 is first inserted into the positioning grooves 103 on the first side template 101 and the second side template 102 via the positioning protrusions 104 to form a vertically closed rectangular frame structure. The first corner bracket 201, second corner bracket 202, third corner bracket 203, and fourth corner bracket 204 are used to reinforce the four corners and joints of the rectangular frame with screws to ensure the overall rigidity of the template. According to the design drawings, the center points of the reserved holes are marked on the bottom template 1. Trapezoidal slots 105 and interconnected rectangular insertion slots 106 are cut along the marked lines, with a depth equal to half the thickness of the bottom template 1. The insert block 301 is slid into the slot 105 through the insertion slot 106. A fixing screw 302 with a height one-third of the beam height is installed at the top. Washers 303 are placed on the outside in sequence, and the locking nut 304 is tightened. Extruded polystyrene board or foam material is selected as the pre-filling block 4 for the holes. It is cut into circular, rectangular, or other shapes according to the pipe penetration requirements, and inserted outside the fixing screw 302 and tightly against the top of the bottom template 1. The horizontal adjustment of the holes is achieved by adjusting the position of the insert 301 within the slot 105. Finally, concrete is slowly poured into the rectangular frame structure, vibrated to compact it, and the pre-filling block 4 is checked for displacement. Curing is performed by covering with plastic film. The formwork is removed after the concrete strength reaches the design value.

[0023] 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 precast concrete lintel mold with adjustable pre-drilled holes, characterized in that, include: The bottom template (1) has a first side template (101) on both sides and a second side template (102) on the other two sides. The first side template (101) and the second side template (102) are perpendicular to the bottom template (1) and are assembled to form a vertically closed rectangular frame structure. The bottom template (1), the first side template (101) and the second side template (102) are all wooden templates. A fixing component (3) is installed on the bottom template (1), and a hole pre-filling block (4) is provided on the outside of the fixing component (3). An installation structure (2) is provided between the bottom template (1), the first side template (101), and the second side template (102). The bottom template (1) has a slot (105) and a slot (106) inside, and the slot (106) is connected to the slot (105). The slot (105) is set as a trapezoidal structure, and the slot (106) is set as a rectangular structure. The bottom of the fixing component (3) is slidably set inside the slot (105).

2. The precast concrete lintel mold with adjustable reserved hole position and shape according to claim 1, characterized in that: The heights of the card slot (105) and the card insertion slot (106) are both half the thickness of the bottom template (1).

3. The precast concrete lintel mold with adjustable reserved hole position and shape according to claim 1, characterized in that: The fixing component (3) includes: a plug (301), a fixing screw (302), a washer (303), and a locking nut (304); the plug (301) is slidably disposed inside the slot (105), the fixing screw (302) is fixedly disposed on the top of the plug (301), and the height of the fixing screw (302) is one-third of the height of the beam, the washer (303) is sleeved on the outside of the fixing screw (302), and the bottom of the washer (303) is in contact with the top of the bottom template (1), and the locking nut (304) is disposed on the outside of the fixing screw (302) by threaded connection, and the bottom of the locking nut (304) is in contact with the top of the washer (303).

4. The precast concrete lintel mold with adjustable reserved hole position and shape according to claim 3, characterized in that: The pre-filled hole block (4) is inserted outside the fixing screw (302), and the bottom of the pre-filled hole block (4) is in contact with the top of the bottom template (1).

5. The precast concrete lintel mold with adjustable reserved hole position and shape according to claim 1, characterized in that: The bottom template (1), the first side template (101), and the second side template (102) are all provided with multiple positioning grooves (103) and positioning protrusions (104). The positioning protrusions (104) on the bottom template (1) are inserted into the positioning grooves (103) on the first side template (101) and the second side template (102). The positioning protrusions (104) on the first side template (101) and the second side template (102) are inserted into the positioning grooves (103) on the bottom template (1). The positioning protrusions (104) on the first side template (101) are inserted into the positioning grooves (103) on the second side template (102).

6. The precast concrete lintel mold with adjustable reserved hole position and shape according to claim 5, characterized in that: The installation structure (2) includes: a first corner bracket (201), a second corner bracket (202), a third corner bracket (203) and a fourth corner bracket (204). The first corner bracket (201) is fixed to the connection between the bottom template (1) and the first side template (101) and the second side template (102) by screws. The second corner bracket (202) is fixed to the connection between the bottom template (1) and the first side template (101) by screws. The third corner bracket (203) is fixed to the connection between the bottom template (1) and the second side template (102) by screws. The fourth corner bracket (204) is fixed to the connection between the first side template (101) and the second side template (102) by screws.

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