Die for precast concrete pool

Abstract

The utility model provides a mould for precast concrete pool, including: inner tube mould, outer mould and positioning frame, the inner tube mould is provided in the outer mould through the positioning frame, the positioning frame includes crossbeam, positioning claw, fixed claw and positioning plate, crossbeam is provided across the top of outer mould, the fixed claw is provided at crossbeam both ends, and the positioning plate is provided with the positioning claw. The positioning claw is arranged on the side, close to the outer mold, of the cross beam, the cross beam is arranged on the outer mold through matching of the fixing claw and the positioning claw, the positioning plates are arranged on the lower surface of the cross beam, and the two ends of the inner tube mold are fixedly hung on the corresponding positioning plates. And the distance between the inner tube mold and the outer mold is controlled through the matching of the fixing claws and the positioning claws. The inner tube mold is fixed in the outer mold through the positioning frame, so that the distance between the inner tube mold and the outer mold can be accurately controlled, the dimensional accuracy and the shape consistency of a precast concrete pool are ensured, and the upper end of the outer mold can be tensioned and limited.

Description

Technical Field

[0001] This utility model relates to the field of molds, and in particular to a mold for precast concrete pools. Background Technology

[0002] A septic tank (sewage tank) is a small-scale domestic sewage treatment structure. Its main function is to separate and settle domestic sewage and to anaerobically digest sludge. As a primary treatment facility for fecal sewage and other domestic wastewater, septic tanks play a crucial role in reducing drainage pipe blockage and decreasing the pollutant content in domestic sewage. Currently, the construction of septic tanks typically requires excavating a deep pit and then burying the entire wall panel within it. This necessitates the manufacture of wall panels of different sizes for different types of septic tanks. For wall panel manufacturers, this results in high customization requirements and low adaptability, increasing production costs. Furthermore, the need for additional sealing treatment significantly increases construction difficulty and work efficiency.

[0003] Existing technology CN202322108385.0 discloses a mold for producing concrete septic tanks, including an outer mold, an inner mold disposed inside the outer mold, and a base fixedly installed at the bottom of the outer mold. A steel bar is fixedly connected to the top of the inner mold, and two steel plates are fixedly connected to the top of the steel bar. A sealing plate is provided between the outer mold and the inner mold, and a feed inlet is opened at the top of the sealing plate, communicating with the bottom of the sealing plate. Although this utility model can achieve the pouring of concrete septic tanks of different heights by adjusting the height of the sealing plate, it still has the following problems:

[0004] 1. To ensure the overall sealing of the existing casting mold, an integrally molded inner mold is usually used for casting. However, after casting, a large adhesion force is generated between the inner mold and the concrete surface. The assembly and disassembly process of the mold may be complicated and time-consuming, especially for the prefabrication of large septic tanks. This not only affects the construction efficiency but may also lead to increased costs. In addition, the complicated assembly and disassembly process may also damage the mold itself and reduce its service life.

[0005] 2. The distance between the inner mold and the outer mold of this utility model mold is controlled by a sealing plate. However, in order to ensure the flatness of the upper surface of the existing mold, it is usually necessary to manually smooth the upper surface. Therefore, the distance between the inner and outer molds is not controlled by the sealing plate, which makes it impossible to accurately position the inner and outer molds, resulting in inconsistent wall thickness of the sewage tank and affecting product quality. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a mold for precast concrete pools. By fixing the inner mold inside the outer mold with a positioning frame, it is possible not only to ensure that the distance between the inner mold and the outer mold is precisely controlled, thereby ensuring the dimensional accuracy and shape consistency of the precast concrete pool, but also to tighten and limit the upper end of the outer mold.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A mold for precast concrete pools is provided, comprising: an inner mold, an outer mold, and a positioning frame, wherein the inner mold is positioned inside the outer mold via the positioning frame.

[0009] The positioning frame includes a crossbeam, positioning claws, fixing claws, and positioning plates. The crossbeam spans across the top of the outer mold, the fixing claws are located at both ends of the crossbeam, and the positioning claws are located on the side of the crossbeam closest to the outer mold. The crossbeam is mounted on the outer mold through the cooperation of the fixing claws and positioning claws. The positioning plate is located on the lower surface of the crossbeam. The two ends of the inner mold are fixedly suspended on the corresponding positioning plates, and the distance between the inner mold and the outer mold is controlled by the cooperation of the fixing claws and positioning claws.

[0010] It should be noted that the positioning frame not only allows for precise positioning of the inner mold, but also utilizes the tension of the positioning claws and fixing claws to tighten and limit the upper end of the outer mold. Existing sewage tank molds mostly have inner molds fixed to the bottom mold, leading to difficulties in demolding. Using an independent inner mold makes it impossible to position it precisely during use, resulting in inconsistent product wall thickness and affecting product quality. Therefore, this solution, through the combined use of the fixing claws and positioning claws on the positioning frame, can precisely control the distance between the inner mold and the outer mold, thereby ensuring uniform wall thickness of the precast concrete tank, improving product quality standards. Compared to traditional molds, this new mold simplifies the assembly and disassembly process, reduces damage to the mold itself, and extends its service life. Furthermore, by reducing the need for manual intervention, it further improves construction efficiency and reduces production costs.

[0011] Preferably, the inner mold is formed by splicing together several inner templates, and adjacent inner templates are connected by locking buckles.

[0012] It should be noted that after the precast concrete pool is poured, the inner formwork can be easily separated by unlocking the locking buckles, greatly simplifying the mold disassembly process, reducing labor costs and time consumption, and also reducing the risk of damaging the mold due to forceful disassembly. Since the inner formwork can be quickly assembled and disassembled, this not only speeds up the production cycle, but also allows the mold to be flexibly deployed between multiple projects, improving production efficiency. Furthermore, if a part of the inner formwork is worn or damaged, only that part of the inner formwork needs to be replaced, rather than the entire inner mold, reducing maintenance costs. In addition, the bottom of the inner mold can be a hollow structure to facilitate workers to operate on the bottom of the precast pool, or it can be a solid structure to fill the bottom plate through subsequent vibration.

[0013] Preferably, the inner template includes a horizontal template and a corner template. The horizontal template is symmetrically and parallelly arranged along the axis of the inner mold length direction. The corner template is connected to both ends of the horizontal template, with one end connected to the horizontal template and the other end abutting against the corresponding corner template. The positioning plate is connected to the upper end of the corner template.

[0014] It should be noted that the horizontal templates are symmetrically and parallelly arranged along the axis of the inner mold length, ensuring that the main body of the precast concrete pool remains straight and smooth. The corner templates are responsible for forming the corners of the pool. The horizontal templates and corner templates, as well as the corner templates themselves, are connected by mutual abutment. This method not only ensures a tight fit between the templates, preventing concrete leakage during pouring, but also allows the templates to be easily disassembled when needed, improving the reusability of the mold. Furthermore, the modular design of the horizontal and corner templates not only facilitates the production and assembly of the mold, but also simplifies subsequent disassembly and maintenance, reducing the overall production cost.

[0015] Preferably, the contact surface between the horizontal template and the corner template is an inclined surface, the inclination angle of the inclined surface is 30° to 60°, and the inclined surfaces on both sides of the horizontal template are set towards the outer mold side.

[0016] It should be noted that the inclined slope design can increase the contact area between the templates, making the connection between the horizontal template and the corner template tighter, effectively preventing concrete leakage during the pouring process, and better adapting to the slight deformation between the templates, ensuring good sealing performance throughout the pouring process. It can also increase the friction between the templates, making the connection between the horizontal template and the corner template stronger, and improving the overall structural stability of the inner mold.

[0017] Preferably, the horizontal template and the angle template are provided with corresponding screw holes on their inclined surfaces, and the horizontal template and the angle template are locked together by the cooperation of nuts and screw holes.

[0018] It should be noted that by setting screw holes on the inclined surfaces of the horizontal and angled templates and locking them with nuts, not only is the connection strength and sealing performance between the templates enhanced, but the ease of disassembly and assembly of the mold and the structural stability are also improved. The bolt connection can effectively resist the pressure of concrete during the pouring process, prevent tensile or shear deformation at the connection between the templates, and effectively prevent the templates from shifting during the pouring process, ensuring the dimensional accuracy and shape consistency of the precast concrete pool.

[0019] Preferably, the lower surface of the positioning plate is flush with the upper surface of the outer mold, and the upper end of the inner mold is fixed to the positioning plate by a nut.

[0020] It should be noted that by aligning the lower surface of the positioning plate with the upper surface of the outer mold and fixing the upper end of the inner mold to the positioning plate with nuts, not only is the flatness of the upper surface of the precast concrete pool ensured, but the fixing effect and sealing performance of the inner mold are also enhanced. This improves the ease of assembly and disassembly of the mold and the structural stability. Moreover, the flush design reduces the height difference between the inner and outer molds, making the installation of the positioning frame more stable, ensuring the uniform wall thickness of the precast concrete pool, and improving the dimensional accuracy of the product.

[0021] Preferably, the outer mold includes a bottom mold and a side mold. The side mold is sequentially spliced ​​around the inner mold on the bottom mold, and has a notch in its middle. A drain outlet forming component is provided in the notch. The drain outlet forming component is detachably installed in the notch of the side mold, and its end face abuts against the outer wall of the inner mold.

[0022] It should be noted that a notch is set in the middle of the side mold for installing the sewage outlet molding component. This design ensures that the position and shape of the sewage outlet are precisely controlled during the pouring process, avoiding the inaccuracy and unsightly appearance caused by manual drilling. The sewage outlet molding component is detachably installed in the notch of the side mold, so that it can be easily removed after pouring without affecting the integrity and sealing of the precast concrete pool.

[0023] Preferably, a sealing groove is provided at the junction of the end of the side mold and the adjacent side mold, and a sealing strip is provided in the sealing groove.

[0024] It should be noted that a sealing groove is set at the end of the side formwork and the abutment of the adjacent side formwork to accommodate the sealing strip. The sealing strip is filled in the sealing groove, which not only ensures a tighter connection between the formworks, but also effectively prevents concrete from leaking from the formwork connection during the pouring process, thus improving the overall sealing performance of the mold.

[0025] Preferably, a vibration motor is provided on the outer wall of the side mold, and the vibration motor can vibrate the mortar between the inner mold and the outer mold by vibrating the side mold.

[0026] It should be noted that the vibration of the vibrating motor can effectively eliminate air bubbles in the mortar, improve the density of the mortar, and reduce the generation of voids and air holes. As the density and uniformity of the mortar are improved, the repair work required after the precast concrete pool is completed is greatly reduced, thus reducing the cost and time of post-processing.

[0027] Preferably, the inner mold and the outer mold are provided with lifting lugs, and the bottom of the inner mold is provided with a base plate.

[0028] It should be noted that the lifting lugs allow the inner mold and outer mold to be easily lifted and moved by a crane or gantry crane, which greatly improves the efficiency of mold lifting and handling, and reduces the time and labor intensity of manual handling.

[0029] The beneficial effects of this utility model are:

[0030] This utility model provides a mold for precast concrete pools. Through the coordinated use of the fixing claws and positioning claws on the positioning frame, the distance between the inner mold and the outer mold can be precisely controlled, ensuring uniform wall thickness of the precast concrete pool and improving the dimensional accuracy and shape consistency of the product. Furthermore, the inner mold is composed of several inner templates spliced ​​together, with adjacent inner templates connected by locking buckles. After pouring, the inner templates can be easily separated by unlocking the locking buckles, greatly simplifying the mold disassembly process and reducing labor costs and time consumption. The mold for precast concrete pools not only significantly improves sealing performance, ease of disassembly, structural stability, wall thickness uniformity, and dimensional accuracy, but also provides greater convenience in production and maintenance. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of a mold for a precast concrete pool according to Embodiment 1 of this utility model.

[0032] Figure 2 This is a three-dimensional structural diagram of the outer mold of Embodiment 1 of this utility model.

[0033] Figure 3 This is a schematic diagram of the splicing structure of the side mold in Embodiment 1 of this utility model.

[0034] Figure 4 This is a three-dimensional structural diagram of the inner mold of Embodiment 1 of this utility model.

[0035] Figure 5 This is a schematic diagram of the structure of the horizontal template in Embodiment 1 of this utility model.

[0036] Figure 6 This is a schematic diagram of the corner template of Embodiment 1 of this utility model.

[0037] Figure 7 This is a three-dimensional schematic diagram of the positioning frame of Embodiment 1 of this utility model.

[0038] Figure 8 This is a cross-sectional view of a mold for a precast concrete pool according to Embodiment 2 of this utility model.

[0039] Figure 9 This is a schematic diagram of the inner mold structure of Embodiment 2 of this utility model.

[0040] In the diagram: 1. Outer mold; 11. Bottom mold; 12. Side mold; 2. Inner mold; 21. Inner template; 211. Horizontal template; 212. Corner template; 22. Inclined slope; 3. Positioning frame; 31. Crossbeam; 32. Positioning claw; 33. Fixing claw; 34. Positioning plate; 4. Locking buckle; 5. Drain outlet forming part; 6. Sealing groove; 61. Sealing strip; 7. Vibration motor; 8. Lifting lug; 9. Base plate.

[0041] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0042] 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.

[0043] Example 1

[0044] like Figures 1-7 As shown, a mold for a precast concrete pool includes: an inner mold 2, an outer mold 1, and a positioning frame 3. The inner mold 2 is positioned inside the outer mold 1 via the positioning frame 3.

[0045] The positioning frame 3 includes a crossbeam 31, positioning claws 32, fixing claws 33, and positioning plates 34. The crossbeam 31 is horizontally mounted on the top of the outer mold 1. The fixing claws 33 are located at both ends of the crossbeam 31. The positioning claws 32 are located on the side of the crossbeam 31 closest to the outer mold 1. The crossbeam 31 is mounted on the outer mold 1 through the cooperation of the fixing claws 33 and the positioning claws 32. The positioning plates 34 are located on the lower surface of the crossbeam 31. The two ends of the inner mold 2 are fixedly suspended on the corresponding positioning plates 34, and the distance between the inner mold 2 and the outer mold 1 is controlled by the cooperation of the fixing claws 33 and the positioning claws 32.

[0046] The inner mold 2 is formed by splicing together several inner templates 21, and adjacent inner templates 21 are connected by locking buckles 4.

[0047] The inner template 21 includes a horizontal template 211 and a corner template 212. The horizontal template 211 is symmetrically and parallelly arranged along the axis of the inner mold 2. The corner template 212 is connected to both ends of the horizontal template 211, with one end connected to the horizontal template 211 and the other end abutting against the corresponding corner template 212. The positioning plate 34 is connected to the upper end of the corner template 212.

[0048] The contact surface between the horizontal template 211 and the angle template 212 is an inclined surface 22 with an inclination angle of 45°, and the inclined surfaces on both sides of the horizontal template 211 are set towards the outer mold 1.

[0049] The horizontal template 211 and the angle template 212 are provided with corresponding screw holes on their inclined surfaces 22. The horizontal template 211 and the angle template 212 are locked together by the cooperation of nuts and screw holes.

[0050] The lower surface of the positioning plate 34 is flush with the upper surface of the outer mold 1, and the upper end of the inner mold 2 is fixed to the positioning plate 34 by a nut.

[0051] The outer mold 1 includes a bottom mold 11 and a side mold 12. The side mold 12 is arranged on the bottom mold in sequence around the inner mold, and a notch is provided in the middle of the side mold 12. A drain outlet forming part 5 is provided in the notch. The drain outlet forming part 5 is detachably installed in the notch of the side mold 12, and its end face abuts against the outer wall of the inner mold 2.

[0052] The end of the side mold 12 is provided with a sealing groove 6 at the abutment of the adjacent side mold 12, and a sealing strip 61 is provided in the sealing groove 6.

[0053] The inner mold 2 and the outer mold 1 are provided with lifting lugs 8.

[0054] The working principle and usage method of a precast concrete pool mold in this embodiment are as follows:

[0055] This embodiment provides a mold for a precast concrete pool. The bottom mold 11 serves as the foundation of the entire mold, providing a flat support surface to ensure the bottom of the precast concrete pool is flat. Side molds 12 are sequentially spliced ​​around the inner mold on the bottom mold 11 to form the side walls of the precast concrete pool. Sealing grooves 6 are provided at the connections between the side molds 12, and sealing strips 61 are installed within the sealing grooves 6 to ensure sealing performance. A drain outlet forming component 5 is installed in the notch in the middle of the side mold 12, ensuring its end face abuts against the outer wall of the inner mold 2, ensuring precise control of the position and shape of the drain outlet during the pouring process. A crossbeam 31 spans across the top of the outer mold 1, providing a horizontal support structure for fixing positioning claws 32 and fixing claws 33. The fixing claws 33 are located at both ends of the crossbeam 31, firmly fixing the crossbeam 31 to the outer mold 1. The positioning claws 32 are located on the side of the crossbeam 31 closest to the outer mold 1, and are used to fix the positioning claws 32 and 33. The crossbeam 31 is fixed to the outer mold 1 to ensure precise control of the distance between the inner mold 2 and the outer mold 1. The positioning plate 34 is set on the lower surface of the crossbeam 31 to fix the upper end of the inner mold 2, ensuring the fixing and positioning effect of the inner mold 2. The inner mold 2 is spliced ​​by several inner templates 21. Adjacent inner templates 21 are connected by locking buckles 4 for easy disassembly and assembly. The contact surface between the horizontal template 211 and the corner template 212 is an inclined slope 22 with an inclination angle of 45°, which increases the contact area between the templates and ensures a tighter connection between the templates to prevent concrete leakage. Screw holes are provided on the inclined slope 22 of the horizontal template 211 and the corner template 212 respectively. The connection strength and sealing performance between the templates are enhanced by the cooperation of nuts and screw holes. The lifting lug 8 is set on the upper end of the side mold 12, so that the side mold 12 can be easily lifted and moved by a crane or gantry crane, improving the lifting and handling efficiency of the mold.

[0056] In use, first place the bottom mold 11 in the predetermined position, ensuring the ground is flat and stable. Then, sequentially assemble and fix the side molds 12 onto the bottom mold 11 to form a closed space. Note that sealing strips 61 should be installed at the joints of the side molds 12 to ensure sealing performance. Next, select suitable crossbeams 31, fixing claws 33, and positioning claws 32 to assemble a positioning frame 3. Place the crossbeam 31 horizontally on top of the outer mold 1, and fix the crossbeam 31 onto the outer mold 1 through the cooperation of the fixing claws 33 and positioning claws 32. The positioning plate 34 is installed below the crossbeam 31. On the surface, ensure that the lower surface of the positioning plate 34 is flush with the upper end surface of the outer mold 1. Then, assemble the inner templates 21 (including the horizontal template 211 and the corner template 212) to form the inner mold 2. Adjacent inner templates 21 are connected by locking buckles 4, ensuring that the horizontal templates 211 are symmetrically and parallel to each other along the axis of the length direction of the inner mold 2. The corner templates 212 are connected to both ends of the horizontal templates 211, with one end connected to the horizontal template 211 and the other end abutting against the corresponding corner template 212. The contact between the horizontal template 211 and the corner template 212 is... The inner mold 2 is an inclined plane 22 with an inclination angle of 45°, and screw holes are provided on the inclined plane 22. The mold is locked by the engagement of nuts with the screw holes. The assembled inner mold 2 is suspended on the positioning plate 34, and the upper end of the inner mold 2 is fixed to the positioning plate 34 with nuts to ensure the fixing and positioning effect of the inner mold 2. By adjusting the positions of the fixing claw 33 and the positioning claw 32, the distance between the inner mold 2 and the outer mold 1 is precisely controlled to ensure uniform wall thickness. After assembly, pouring begins, starting from the top of the mold, paying attention to even distribution of the concrete. To avoid excessively high or low concrete accumulation, during the pouring process, the pouring workers at the bottom of the precast pool can fill the gap through the middle of the inner mold 2 to ensure the flatness of the bottom. After the concrete reaches the demolding strength, first release the fixation between the inner mold 2 and the positioning plate 34 (such as loosening the nuts), release the locking buckles 4 between the inner templates 21, and then remove the horizontal templates 211 and the corner templates 212 in sequence. After the side molds 12 of the outer mold 1 are removed, they can be moved away by a crane or hoist through the lifting lugs 8 on the side molds 12 to facilitate the transportation of the precast pool.

[0057] Example 2

[0058] like Figure 8 and Figure 9 As shown, a mold for a precast concrete pool includes: an inner mold 2, an outer mold 1, and a positioning frame 3. The inner mold 2 is positioned inside the outer mold 1 via the positioning frame 3.

[0059] The positioning frame 3 includes a crossbeam 31, positioning claws 32, fixing claws 33, and positioning plates 34. The crossbeam 31 is horizontally mounted on the top of the outer mold 1. The fixing claws 33 are located at both ends of the crossbeam 31. The positioning claws 32 are located on the side of the crossbeam 31 closest to the outer mold 1. The crossbeam 31 is mounted on the outer mold 1 through the cooperation of the fixing claws 33 and the positioning claws 32. The positioning plates 34 are located on the lower surface of the crossbeam 31. The two ends of the inner mold 2 are fixedly suspended on the corresponding positioning plates 34, and the distance between the inner mold 2 and the outer mold 1 is controlled by the cooperation of the fixing claws 33 and the positioning claws 32.

[0060] The inner mold 2 is formed by splicing together several inner templates 21, and adjacent inner templates 21 are connected by locking buckles 4.

[0061] The inner template 21 includes a horizontal template 211 and a corner template 212. The horizontal template 211 is symmetrically and parallelly arranged along the axis of the inner mold 2. The corner template 212 is connected to both ends of the horizontal template 211, with one end connected to the horizontal template 211 and the other end abutting against the corresponding corner template 212. The positioning plate 34 is connected to the upper end of the corner template 212.

[0062] The contact surface between the horizontal template 211 and the angle template 212 is an inclined surface 22 with an inclination angle of 45°, and the inclined surfaces on both sides of the horizontal template 211 are set towards the outer mold 1.

[0063] The horizontal template 211 and the angle template 212 are provided with corresponding screw holes on their inclined surfaces 22. The horizontal template 211 and the angle template 212 are locked together by the cooperation of nuts and screw holes.

[0064] The lower surface of the positioning plate 34 is flush with the upper surface of the outer mold 1, and the upper end of the inner mold 2 is fixed to the positioning plate 34 by a nut.

[0065] The outer mold 1 includes a bottom mold 11 and a side mold 12. The side mold 12 is arranged on the bottom mold in sequence around the inner mold, and a notch is provided in the middle of the side mold 12. A drain outlet forming part 5 is provided in the notch. The drain outlet forming part 5 is detachably installed in the notch of the side mold 12, and its end face abuts against the outer wall of the inner mold 2.

[0066] The end of the side mold 12 is provided with a sealing groove 6 at the abutment of the adjacent side mold 12, and a sealing strip 61 is provided in the sealing groove 6.

[0067] The outer wall of the side mold 12 is provided with a vibration motor 7, which can vibrate the mortar between the inner mold 2 and the outer mold 1 by vibrating the side mold 12.

[0068] The inner mold 2 and the outer mold 1 are provided with lifting lugs 8, and the bottom of the inner mold 2 is provided with a base plate 9.

[0069] Compared with Example 1:

[0070] This embodiment provides a mold for precast concrete pools. By setting a bottom plate 9 at the bottom of the inner mold 2 to seal the middle of the inner mold 2, and by installing a vibration motor 7 on the outer wall of the side mold 12, not only can the outer mold 1 vibrate to remove air bubbles in the mortar, improve the density of the mortar, and reduce the generation of voids and air holes, but the vibration can also make the mortar flow accurately into the lower end of the inner mold 2, ensuring product quality.

[0071] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is used only to illustrate the technical solution of this utility model, and is not intended to limit the protection scope of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the protection scope of this utility model.

[0072] In the description of this utility model, it should be understood that the terms "upper", "lower", "upper end", "lower end", "upper surface", "lower surface", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0073] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A mold for a precast concrete pool, comprising: The inner mold (2), the outer mold (1), and the positioning frame (3) are provided, wherein the inner mold (2) is positioned inside the outer mold (1) via the positioning frame (3). The inner mold (2) is characterized by: The positioning frame (3) includes a crossbeam (31), positioning claws (32), fixing claws (33), and positioning plates (34). The crossbeam (31) is horizontally mounted on the top of the outer mold (1). The fixing claws (33) are mounted on both ends of the crossbeam (31). The positioning claws (32) are mounted on the side of the crossbeam (31) close to the outer mold (1). The crossbeam (31) is mounted on the outer mold (1) through the cooperation of the fixing claws (33) and the positioning claws (32). The positioning plates (34) are mounted on the lower surface of the crossbeam (31). The two ends of the inner mold (2) are fixedly suspended on the corresponding positioning plates (34). The distance between the inner mold (2) and the outer mold (1) is controlled by the cooperation of the fixing claws (33) and the positioning claws (32).

2. The mold for a precast concrete pool as described in claim 1, characterized in that: The inner mold (2) is formed by splicing together several inner templates (21), and adjacent inner templates (21) are connected by locking buckles (4).

3. The mold for a precast concrete pool as described in claim 2, characterized in that: The inner template (21) includes a horizontal template (211) and a corner template (212). The horizontal template (211) is symmetrically and parallel to the axis of the inner mold (2) along its length. The corner template (212) is connected to both ends of the horizontal template (211), with one end connected to the horizontal template (211) and the other end abutting against the corresponding corner template (212). The positioning plate (34) is connected to the upper end of the corner template (212).

4. The mold for a precast concrete pool as described in claim 3, characterized in that: The contact surface between the horizontal template (211) and the angle template (212) is an inclined surface (22), the inclination angle of the inclined surface (22) is 30° to 60°, and the inclined surfaces on both sides of the horizontal template (211) are set towards the outer mold (1).

5. The mold for a precast concrete pool as described in claim 4, characterized in that: The horizontal template (211) and the angle template (212) are provided with corresponding screw holes on their inclined surfaces (22). The horizontal template (211) and the angle template (212) are locked together by the cooperation of nuts and screw holes.

6. The mold for a precast concrete pool as described in claim 1, characterized in that: The lower surface of the positioning plate (34) is flush with the upper surface of the outer mold (1), and the upper end of the inner mold (2) is fixed to the positioning plate (34) by a nut.

7. The mold for a precast concrete pool as described in claim 1, characterized in that: The outer mold (1) includes a bottom mold (11) and a side mold (12). The side mold (12) is arranged in sequence around the inner mold on the bottom mold, and a notch is provided in the middle of the side mold. A drain outlet forming part (5) is provided in the notch. The drain outlet forming part (5) is detachably installed in the notch of the side mold (12), and its end face abuts against the outer wall of the inner mold (2).

8. The mold for a precast concrete pool as described in claim 7, characterized in that: The end of the side mold (12) is provided with a sealing groove (6) at the contact point with the adjacent side mold (12), and a sealing strip (61) is provided in the sealing groove (6).

9. A mold for a precast concrete pool as described in claim 7, characterized in that: The outer wall of the side mold (12) is provided with a vibration motor (7), which can vibrate the mortar between the inner mold (2) and the outer mold (1) by vibrating the side mold (12).

10. A mold for a precast concrete pool as described in claim 1, characterized in that: The inner mold (2) and the outer mold (1) are provided with lifting lugs (8), and the bottom of the inner mold (2) is provided with a base plate (9).

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