Prefabricated elevator shaft pouring mold with size convenient to adjust
By designing a detachable and assembled elevator shaft casting mold, the problems of high mold customization cost and inconvenient construction in the prior art are solved, and multi-dimensional adjustment and efficient construction of the mold are achieved.
Patent Information
- Application Number
- CN202421927679.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In the prior art, prefabricated elevator shaft molds need to be customized with multiple different sizes, resulting in high costs and inconvenient on-site construction.
A detachable assembly structure including a bottom bracket, an inner mold frame, an outer mold frame and a top bracket is designed. The bottom bracket is retractable, and the inner and outer mold frames can be assembled. The top bracket enhances stability and adapts to different elevator shaft sizes by adjusting the components of the mold.
It realizes multi-size adjustment of molds, reduces production costs, improves construction efficiency, is suitable for a variety of elevator shaft sizes, and saves production and installation time.
Smart Images
Figure CN223161105U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of construction, and relates to a casting mold for elevator shaft components, specifically a precast elevator shaft casting mold that is convenient for adjusting dimensions. Background Art
[0002] A precast elevator shaft is a precast component applied to non-load-bearing structures and can replace traditional cast-in-place concrete elevator shafts and masonry elevator shafts. After being cast in the mold, it is transported to the construction site for installation. By prefabricating the shaft body, the amount of on-site reinforced concrete and secondary structure work is reduced, and the construction is convenient and fast. The sizes and heights of elevator shafts in existing housing buildings vary. Casting precast elevator shafts requires customizing multiple elevator shaft molds with different sizes in advance, which not only greatly increases the cost, but also makes it extremely inconvenient to use multiple sets of molds for construction operations on-site. Summary of the Utility Model
[0003] To solve the above deficiencies in the prior art, the utility model aims to provide a precast elevator shaft casting mold that is convenient for adjusting dimensions, so as to achieve the purpose of casting elevator shafts with different sizes by adjusting the size of the mold and saving the manufacturing cost.
[0004] To achieve the above object, the technical solution adopted by the utility model is as follows:
[0005] A precast elevator shaft casting mold that is convenient for adjusting dimensions, including a bottom bracket, an inner mold frame, an outer mold frame, and a top bracket. The bottoms of the inner mold frame and the outer mold frame are detachably arranged on the bottom bracket, and the top bracket is detachably arranged on the tops of the inner mold frame and the outer mold frame;
[0006] The bottom bracket is an annular structure that can be telescopically inserted in the front, back, left, and right directions, and the top bracket is a cross-shaped structure;
[0007] The inner mold frame is a square cylindrical structure, which is composed of multiple inner side molds that can be detachably assembled. The outer mold frame is a square cylindrical structure, which is composed of multiple outer side molds that can be detachably assembled. The outer mold frame is sleeved on the outside of the inner mold frame, so as to form a casting cavity between the inner mold frame and the outer mold frame. Doors are opened on the inner mold frame and the outer mold frame, and a door frame for forming a door opening in the elevator shaft is detachably arranged at the door.
[0008] As a limitation of the utility model, telescopic rods are telescopically inserted on the four end faces of the cross-shaped structure of the top bracket, and the telescopic rods are fixed to the top bracket by bolts. The four telescopic rods are respectively detachably connected to the tops of the inner mold frame and the outer mold frame.
[0009] As a further limitation of the utility model, the telescopic structure of the bottom bracket is positioned by bolts.
[0010] As another limitation of the present utility model, universal wheels are assembled at the four corners of the bottom bracket.
[0011] As a limitation of the present utility model, the inner mold and the outer mold have the same structure, and both include side plates and vertical plates fixed around the side plates.
[0012] As the third limitation of the present utility model, a hook for hoisting is fixedly provided on the top bracket.
[0013] Due to the adoption of the above technical solutions, the beneficial effects obtained by the present utility model compared with the prior art are as follows:
[0014] (1) Both the inner mold frame and the outer mold frame of the present utility model are detachable assembled structures. Combined with the bottom bracket, they can be telescoped in four directions, enabling the entire casting mold to be adjusted in size. When the size of the elevator shaft is determined, the overall height can be adjusted by adding inner molds and outer molds, or the overall length and height can be adjusted by the bottom bracket. During adjustment, the inner molds and outer molds connected at the edges are disassembled to form a gap, then the size of the bottom bracket is adjusted to adapt to the size of the elevator shaft, and then the corresponding-sized inner molds and outer molds are reinstalled at the formed gap, saving the trouble of remaking a new mold. Only the corresponding-sized inner molds and outer molds need to be made, greatly reducing the production cost and saving the installation time;
[0015] (2) The top bracket of the present utility model can play a role in supporting the casting cavity, preventing the casting cavity from tilting. With the telescopic structure, the trouble of repeated replacement is saved, and molds of various different sizes can be used, with strong practicability;
[0016] (3) The universal wheels on the bottom bracket of the present utility model are beneficial for its telescopic adjustment, making it more convenient and labor-saving to use;
[0017] (4) The vertical plates around the inner molds and outer molds of the present utility model can not only play a strengthening role but also save materials, and are convenient for assembly by bolts, with convenient disassembly and assembly.
[0018] In summary, the mold of the present utility model can adapt to various different sizes of precast elevator shafts, greatly saving the manufacturing cost and being applicable to casting elevator shafts. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.
[0020] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present utility model;
[0021] Figure 2 It is a top-view structural schematic diagram of the bottom bracket of an embodiment of the present utility model;
[0022] Figure 3 It is a top - view structural schematic diagram of the first support in the embodiment of the present utility model;
[0023] Figure 4 It is a top - view structural schematic diagram of the second support in the embodiment of the present utility model;
[0024] Figure 5 It is a top - view structural schematic diagram of the third support in the embodiment of the present utility model;
[0025] Figure 6 It is a top - view structural schematic diagram when adjusting the size of the bottom support in the embodiment of the present utility model;
[0026] Figure 7 It is a top - view structural schematic diagram of the inner frame and the outer frame fixed on the bottom support in the embodiment of the present utility model;
[0027] Figure 8 It is a three - dimensional structural schematic diagram of the inner mold or the outer mold in the embodiment of the present utility model.
[0028] In the figure: 1. Bottom support; 11. First support; 111. First insertion hole; 112. First insertion rod; 12. Second support; 121. Second insertion rod; 13. Third support; 131. Third insertion hole; 2. Universal wheel; 3. Inner mold frame; 4. Outer mold frame; 41. Side plate; 42. Vertical plate; 5. Door frame; 6. Top support; 7. Telescopic rod; 8. Hook. Specific embodiments
[0029] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and understanding the present utility model, and are not used to limit the present utility model.
[0030] Embodiment An easily adjustable - size precast elevator shaft casting mold
[0031] As Figure 1 shown, this embodiment includes a bottom support 1, an inner mold frame 3, an outer mold frame 4, and a top support 6. The bottom support 1 is used to carry the inner mold frame 3 and the outer mold frame 4. The outer mold frame 4 is sleeved outside the inner mold frame 3, and the bottoms of both are detachably arranged on the bottom support 1, so as to form a casting cavity between the inner mold frame 3 and the outer mold frame 4. By injecting concrete into the casting cavity, a precast elevator shaft can be formed. The top support 6 is detachably arranged on the tops of the inner mold frame 3 and the outer mold frame 4, which is used to enhance the strength of the tops of the inner mold frame 3 and the outer mold frame 4, ensure the uprightness of the top casting cavity part, and improve the strength of the overall mold.
[0032] As Figure 2As shown, the bottom bracket 1 is an annular structure that can be telescopically inserted in the front, back, left, and right directions. The bottom bracket 1 includes two first brackets 11, two second brackets 12, and two third brackets 13. As Figure 3 shown, the first bracket 11 is L-shaped, with a first insertion hole 111 provided on one end face and a first insertion rod 112 fixedly provided on the other end face. As Figure 4 shown, the second bracket 12 is straight, and second insertion rods 121 are fixedly provided on both one end face and one side face, forming an L shape. As Figure 5 shown, the third bracket 13 is straight, and third insertion holes 131 are provided on both of its end faces. The first brackets 11 and the second brackets 12 are located at the four corners of the bottom bracket 1. As Figure 6 shown, when adjusting the size of the bottom bracket 1, the second insertion rods 121 of the two second brackets 12 are synchronously pulled outwards from the first insertion holes 111 of the two first brackets 11 respectively, and the other second insertion rods 121 of the two second brackets 12 and the first insertion rods 112 of the two first brackets 11 are synchronously pulled out from the third insertion holes 131 of the two third brackets 13 respectively to complete the size adjustment of the bottom bracket 1.
[0033] At the positions where the insertion rods and insertion holes of the bottom bracket 1 are inserted, a plurality of bolts are provided. In order to improve the fixing stability, through holes are first provided at the corresponding positions of the first bracket 11, the second bracket 12, and the third bracket 13, and then nuts are welded at the through hole positions. The bolts are threadedly connected to the nuts, pass through the through holes, and abut against the insertion rods to realize the fixation of the telescopic structure. Universal wheels 2 are assembled at the four corners of the bottom bracket 1, that is, the universal wheels 2 are installed at the corners of the two first brackets 11 and the two second brackets 12, which is convenient for realizing the telescoping of the bottom bracket 1 by overall pulling.
[0034] As Figure 1 、 Figure 7 shown, the inner mold frame 3 is a square cylindrical structure, which is composed of a plurality of inner side molds that can be detachably assembled. The outer mold frame 4 is a square cylindrical structure, which is composed of a plurality of outer side molds that can be detachably assembled. The outer mold frame 4 is sleeved on the outside of the inner mold frame 3, so that a pouring cavity is formed between the inner mold frame 3 and the outer mold frame 4. By injecting concrete into the pouring cavity, a precast elevator shaft can be formed. Door openings are provided at the same positions on the inner mold frame 3 and the outer mold frame 4. A door frame 5 is detachably provided at the door opening. One side of the door frame 5 is detachably and sealingly connected to the edge of the inner mold frame 3 at the door opening, and the other side is detachably and sealingly connected to the edge of the outer mold frame 4 at the door opening, which is used to disconnect the pouring cavity at the door opening and form a door opening on the elevator shaft for installing an elevator door. The door frame 5 is a door-shaped plate structure, which is adapted to the shape of the door opening. The size of a general elevator door is a standard part. If there is a change, the door frame 5 can be remade.
[0035] As Figure 8As shown, the inner mold and the outer mold have the same structure, both including a side plate 41 and vertical plates 42 fixed around the side plate 41. The side plate 41 is used to make the pouring cavity form a flat plane, and the vertical plates 42 are used for connecting between adjacent inner molds and outer molds. The two vertical plates 42 are connected by bolts. Among them, when installing the inner mold frame 3 and the outer mold frame 4, the vertical plate 42 of the inner mold faces inward, and the vertical plate 42 of the outer mold faces outward.
[0036] The top bracket 6 is of a cross-shaped structure. Telescopic rods 7 are telescopically inserted on the four end faces of the cross-shaped structure. The fixing of the telescopic rod 7 and the top bracket 6 is by bolts, that is, through holes are provided on the side of the top bracket 6, and nuts are welded at the through holes. The bolts are connected to the nuts, and the bolts pass through the through holes and abut against the telescopic rod 7 to achieve their fixation. The four telescopic rods 7 are respectively detachably connected to the tops of the inner mold frame 3 and the outer mold frame 4 by bolts, which is used to enhance the strength of the top of the whole mold and enable the pouring cavity to remain upright without tilting. A hook 8 for hoisting is fixed on the top bracket 6. When demolding, the steel wire rope on the crane is fixed on the hook 8 to lift the mold.
[0037] When adjusting the size of the mold in this embodiment, a gap is disassembled in the direction of the size to be adjusted for the inner mold frame 3 and the outer mold frame 4, that is, a vertical strip of the inner mold and the outer mold is disassembled, and then the bottom bracket 1 is pulled to form the required size. Then, select the inner mold and the outer mold of the corresponding size and fix them again at the gap by bolts to form a complete mold. At the same time, adjust the telescopic rod 7 on the top bracket 6 so that the telescopic rod 7 can be fixed to the tops of the inner mold and the outer mold at the same time. After the size adjustment is completed, retarder concrete is poured into the pouring cavity. After solidification, demolding forms an elevator shaft. When demolding, remove the door frame 5, use a crane, hang the steel wire rope of the crane on the hook 8 of the top bracket 6, lift the inner mold frame 3 and the outer mold frame 4 to demold the elevator shaft, and then move the elevator shaft down from the bottom bracket 1.
[0038] It should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the above embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A precast elevator shaft casting mold that is convenient for adjusting dimensions, characterized in that: It includes a bottom bracket, an inner mold frame, an outer mold frame and a top bracket. The bottoms of the inner mold frame and the outer mold frame are detachably arranged on the bottom bracket, and the top bracket is detachably arranged on the tops of the inner mold frame and the outer mold frame; The bottom bracket is an annular structure that can be telescopically inserted in the front, back, left and right directions, and the top bracket is a cross-shaped structure; The inner mold frame is a square cylindrical structure, which is composed of a plurality of inner side molds that can be detachably assembled. The outer mold frame is a square cylindrical structure, which is composed of a plurality of outer side molds that can be detachably assembled. The outer mold frame is sleeved on the outside of the inner mold frame, so as to form a pouring cavity between the inner mold frame and the outer mold frame. Doors are opened on the inner mold frame and the outer mold frame, and a door frame for forming a door opening in the elevator shaft is detachably arranged at the door.
2. The precast elevator shaft casting mold that is convenient for adjusting dimensions according to claim 1, wherein: On the four end faces of the cross-shaped structure of the top bracket, telescopic rods can be inserted, and the telescopic rods are fixed to the top bracket by bolts. The four telescopic rods are respectively detachably connected to the tops of the inner mold frame and the outer mold frame.
3. The precast elevator shaft casting mold according to claim 2, which is characterized in that: The telescopic structure of the bottom bracket is positioned by bolts.
4. A precast elevator shaft casting mold that is convenient for adjusting dimensions according to any one of claims 1-3, characterized in that: Universal wheels are assembled at the four corners of the bottom bracket.
5. A precast elevator shaft casting mold that is convenient for adjusting dimensions according to claim 4, characterized in that: The inner side mold and the outer side mold have the same structure, and both include a side plate and vertical plates fixed around the side plate.
6. A precast elevator shaft casting mold that is convenient for adjusting dimensions according to any one of claims 1-3 and 5, characterized in that: A hook for hoisting is fixed on the top bracket.