Precast pile forming die
By using a "U"-shaped fixing sleeve and screw structure on the mold plate, the problems of inconvenient assembly and poor sealing of traditional circular pile molds are solved, realizing stable assembly and convenient disassembly of the mold plate and improving the sealing effect.
Patent Information
- Application Number
- CN202422986647.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Traditional circular pile molds are inconvenient to assemble and disassemble, and the bolts are easily damaged, resulting in poor sealing and easy leakage of grout.
The mold plate is stably assembled and easily disassembled by using a "U"-shaped fixing sleeve and a lead screw structure, which drives the sliding plate to press against the edge block through the sliding sleeve.
The mold plate assembly is more robust and stable, and disassembly is more convenient, avoiding bolt damage and grout leakage, and improving sealing performance.
Smart Images

Figure CN223545449U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a mold, specifically a precast pile forming mold, belonging to the field of precast pile mold technology. Background Technology
[0002] Precast piles refer to piles of different forms and materials manufactured on-site or in factories. They typically include steel piles and concrete piles. Among them, concrete piles can withstand larger building loads and are characterized by rapid construction, strength, and durability, making them more widely used. There are various types of precast concrete piles, including solid piles, hollow piles, circular piles, square piles, and irregularly shaped piles. With the continuous advancement of infrastructure construction, precast circular piles are increasingly widely used in highways, high-speed railways, bridges, water conservancy, wind power, and other fields. Circular pile molds are key equipment for producing precast circular piles, and their quality and precision directly affect the quality of the precast piles. The main body of a circular pile mold is usually composed of two semi-circular mold plates.
[0003] However, traditional round molds require multiple bolts to fix the two semi-circular mold plates. During assembly, multiple bolts need to be installed one by one, which is slow and inconvenient for both installation and disassembly. Repeated disassembly can damage the threaded holes on the mold plate, resulting in poor bolt fixing effect in the later stage. This leads to poor sealing effect of the mold assembly, which can easily cause leakage. In addition, the bolts are too small and can be easily lost after disassembly. Utility Model Content
[0004] The purpose of this utility model is to provide a precast pile forming mold to solve the above problems. A "U"-shaped fixing sleeve is covered on the outside of the two side blocks. Then, the screw is rotated, and the screw drives the two sliding plates to abut against the two side blocks from both sides to the middle through the sliding sleeve. This makes the two side blocks abut against each other, thereby making the first mold plate and the second mold plate firmly and stably assembled, and making the mold assembly and disassembly more convenient and flexible.
[0005] This utility model achieves the above-mentioned objective through the following technical solution: a precast pile forming mold, comprising a first mold plate, with a second mold plate abutting at both ends of the first mold plate, a first side block fixedly connected to both ends of the first mold plate, and a second side block fixedly connected to both ends of the second mold plate, with each of the two first side blocks abutting against a corresponding second side block, and the same fixing structure installed on the first and second side blocks, the fixing structure comprising a fixing sleeve, with the same fixing sleeve abutting on the first and second mold plates, a lead screw rotatably connected to the fixing sleeve, the threads at both ends of the lead screw being opposite, two sliding sleeves threadedly connected to the lead screw, and a sliding plate fixedly connected to the sliding sleeve, one of the sliding plates abutting against the first side block, and the other sliding plate abutting against the second side block.
[0006] Preferably, the fixed sleeve has a U-shaped cross-section, and the two sliding sleeves are symmetrically distributed about the middle of the lead screw.
[0007] Preferably, a plurality of first guide rods are fixedly connected to the skateboard, and the first guide rods are slidably connected to the fixed sleeve.
[0008] Preferably, a rotating rod is slidably connected to the end of the lead screw, and the rotating rod is perpendicular to the lead screw.
[0009] Preferably, the first guide rod has a "T" shaped cross-section, and the rotating rod has an "I" shaped cross-section.
[0010] Preferably, the cross-section of the first side block is rectangular, and the cross-section of the second side block is L-shaped.
[0011] Preferably, a plurality of second guide rods are fixedly connected to the first side block, and the second guide rods are slidably connected to the second side block.
[0012] Preferably, a spring is sleeved on the outside of the second guide rod, one end of the spring is fixedly connected to the first side block, and the other end of the spring abuts against the second side block.
[0013] Preferably, sealing strips are installed at both ends of the first mold plate, and the sealing strips abut against the second mold plate.
[0014] The beneficial effects of this utility model are as follows: the two ends of the first mold plate abut against the second mold plate, the two ends of the first mold plate are fixedly connected to the first side block, the two ends of the second mold plate are fixedly connected to the second side block, the two first side blocks abut against the corresponding second side blocks, the first mold plate and the second mold plate abut against the same fixed sleeve, the fixed sleeve is rotatably connected to the screw rod, the threads at both ends of the screw rod are opposite, the screw rod is threaded to two sliding sleeves, the sliding sleeves are fixedly connected to the sliding sleeves, one sliding sleeve abuts against the first side block, and the other sliding sleeve abuts against the second side block; the "U" shaped fixed sleeve is covered over the outside of the two side blocks, and then the screw rod is rotated, the screw rod drives the two sliding sleeves to abut against the two side blocks respectively, so that the two side blocks abut against each other, thereby making the assembly of the two mold plates more firm and stable, and making the assembly and disassembly of the mold more convenient. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 for Figure 1 The diagram shows an enlarged view of part A.
[0017] Figure 3 This is a schematic diagram of the connection structure between the first mold plate and the second mold plate of this utility model;
[0018] Figure 4 for Figure 3 The diagram shows an enlarged view of part B.
[0019] Figure 5 This is a schematic diagram of the connection structure between the lead screw and the fixed sleeve of this utility model;
[0020] Figure 6 for Figure 5 The diagram shows an enlarged view of section C.
[0021] In the diagram: 1. First mold plate; 2. Second mold plate; 3. First side block; 4. Second side block; 5. Fixing structure; 501. Fixing sleeve; 502. Lead screw; 503. Sliding sleeve; 504. Slide plate; 505. First guide rod; 506. Rotating rod; 6. Sealing strip; 7. Second guide rod; 8. Spring. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-6 As shown, a precast pile forming mold includes a first mold plate 1, with two ends of the first mold plate 1 abutting against a second mold plate 2. First side blocks 3 are fixedly connected to both ends of the first mold plate 1, and second side blocks 4 are fixedly connected to both ends of the second mold plate 2. Each of the two first side blocks 3 abuts against a corresponding second side block 4. The same fixing structure 5 is installed on both the first side blocks 3 and the second side blocks 4. The fixing structure 5 includes a fixing sleeve 501. The first mold plate 1 and the second mold plate 2 abut against the same fixing sleeve 501. A lead screw 502 is rotatably connected to the fixing sleeve 501. The threads at both ends of the lead screw 502 are opposite. Two sliding sleeves 503 are threadedly connected to the lead screw 502. A sliding plate 504 is fixedly connected to each sliding sleeve 503. One sliding plate 504 abuts against the first side block 3, and the other sliding plate 504 abuts against the second side block 4. The fixed sleeve 501 has a U-shaped cross-section, and the two sliding sleeves 503 are symmetrically distributed about the middle of the lead screw 502.
[0024] As a technical optimization of this utility model, a plurality of first guide rods 505 are fixedly connected to the slide plate 504, and the first guide rods 505 are slidably connected to the fixed sleeve 501; the setting of the first guide rods 505 has a guiding effect on the slide plate 504, making the slide plate 504 slide more stably.
[0025] As a technical optimization of this utility model, a rotating rod 506 is slidably connected to the end of the lead screw 502, and the rotating rod 506 is perpendicular to the lead screw 502; the rotating rod 506 facilitates the rotation of the lead screw 502.
[0026] As a technical optimization of this utility model, the cross-section of the first guide rod 505 is T-shaped, and the cross-section of the rotating rod 506 is I-shaped. The T-shaped cross-section of the first guide rod 505 can prevent the slide plate 504 from slipping off the fixed sleeve 501, and the I-shaped cross-section of the rotating rod 506 can prevent the rotating rod 506 from slipping off the lead screw 502.
[0027] As a technical optimization of this utility model, the first side block 3 has a rectangular cross-section, and the second side block 4 has an "L" shaped cross-section. A plurality of second guide rods 7 are fixedly connected to the first side block 3. The second guide rods 7 are slidably connected to the second side block 4. A spring 8 is sleeved on the outside of the second guide rod 7. One end of the spring 8 is fixedly connected to the first side block 3, and the other end of the spring 8 abuts against the second side block 4. The second mold plate 2 drives the second side block 4 to abut against the first side block 3. At this time, the second side block 4 abuts against the spring 8 and retracts. At the same time, the second guide rod 7 passes through the second side block 4. The setting of the spring 8 facilitates the demolding work after the circular pile is poured. When the fixing structure 5 is removed, the spring 8 resets and pushes the second side block 4 to slide away from the first side block 3. The second side block 4 drives the second mold plate 2 to move away from the first mold plate 1, thereby making the demolding work more convenient.
[0028] As a technical optimization of this utility model, sealing strips 6 are installed at both ends of the first mold plate 1, and the sealing strips 6 abut against the second mold plate 2; the two ends of the second mold plate 2 are aligned with the two ends of the first mold plate 1, and the second mold plate 2 is pushed towards the first mold plate 1, so that the sealing strips 6 installed on the first mold plate 1 abut against the second mold plate 2, thereby improving the sealing between the first mold plate 1 and the second mold plate 2, avoiding grout leakage when pouring concrete, and enabling the initial positioning of the second mold plate 2.
[0029] In use, this invention first aligns the two ends of the second mold plate 2 with the two ends of the first mold plate 1, and pushes the second mold plate 2 towards the first mold plate 1, causing the sealing strip 6 installed on the first mold plate 1 to abut against the second mold plate 2. This improves the sealing between the first mold plate 1 and the second mold plate 2, preventing grout leakage during concrete pouring and allowing for initial positioning of the second mold plate 2. Simultaneously, the second mold plate 2 causes the second side block 4 to abut against the first side block 3. At this time, the second side block 4 abuts against the spring 8, and the second guide rod 7 passes through the second side block 4. The spring 8 facilitates demolding after the circular pile is poured. When the fixing structure 5 is removed, the spring 8 returns to its original position and pushes the second side block 4 to slide away from the first side block 3. The second side block 4 drives the second mold plate 2 to move away from the first mold plate 1, making demolding more convenient. The second guide rod 7 guides the spring 8 and the second side block 4. When installing the fixing structure 5, the fixing sleeve 501 covers the outside of the first side block 3 and the second side block 4, making the fixing... The two ends of the fixed sleeve 501 abut against the first mold plate 1 and the second mold plate 2 respectively. Then, the rotating rod 506 is rotated, which drives the lead screw 502 to rotate. Since the threads at both ends of the lead screw 502 are opposite, the lead screw 502 drives the two sliding sleeves 503 to slide towards the middle of the mold. The sliding of the two sliding sleeves 503 simultaneously drives the two sliding plates 504 to slide towards the first side block 3 and the second side block 4 respectively, so that the two sliding plates 504 abut against the first side block 3 and the second side block 4 respectively, thereby fixing the first side block 3 and the second side block 4 so that they cannot move to the sides. This ensures that the two ends of the first mold plate 1 and the second mold plate 2 always abut against each other, making the mold assembly more solid and stable, and making installation and disassembly more convenient and flexible. The first guide rod 505 guides the sliding plate 504, making the sliding plate 504 slide more stably. One of the sliding plates 504 is provided with multiple through holes. When the sliding plate 504 slides towards the second side block 4, the end of the second guide rod 7 passes through the corresponding through hole on the sliding plate 504, further improving the stability of the sliding plate 504.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A precast pile forming mold, comprising a first mold plate (1), characterized in that: The first mold plate (1) has two ends abutting against the second mold plate (2). The first mold plate (1) has two ends fixedly connected to the first side block (3). The second mold plate (2) has two ends fixedly connected to the second side block (4). The two first side blocks (3) abut against the corresponding second side blocks (4). The first side block (3) and the second side block (4) are equipped with the same fixing structure (5). The fixing structure (5) includes a fixing sleeve (501). The first mold plate (1) and the second mold plate (2) abut against the same fixing sleeve (501). The fixing sleeve (501) is rotatably connected to the lead screw (502). The threads at both ends of the lead screw (502) are opposite. The lead screw (502) is threaded with two sliding sleeves (503). The sliding sleeves (503) are fixedly connected to the sliding slides (503). One of the sliding slides (504) abuts against the first side block (3), and the other sliding slide (504) abuts against the second side block (4).
2. The precast pile forming mold according to claim 1, characterized in that: The fixed sleeve (501) has a U-shaped cross-section, and the two sliding sleeves (503) are symmetrically distributed about the middle of the lead screw (502).
3. The precast pile forming mold according to claim 1, characterized in that: A plurality of first guide rods (505) are fixedly connected to the slide plate (504), and the first guide rods (505) are slidably connected to the fixed sleeve (501).
4. The precast pile forming mold according to claim 3, characterized in that: The end of the lead screw (502) is slidably connected to a rotating rod (506), which is perpendicular to the lead screw (502).
5. A precast pile forming mold according to claim 4, characterized in that: The first guide rod (505) has a "T" shaped cross-section, and the rotating rod (506) has an "I" shaped cross-section.
6. The precast pile forming mold according to claim 1, characterized in that: The first side block (3) has a rectangular cross-section, and the second side block (4) has an "L" shaped cross-section.
7. A precast pile forming mold according to claim 6, characterized in that: Multiple second guide rods (7) are fixedly connected to the first side block (3), and the second guide rods (7) are slidably connected to the second side block (4).
8. A precast pile forming mold according to claim 7, characterized in that: A spring (8) is sleeved on the outside of the second guide rod (7). One end of the spring (8) is fixedly connected to the first side block (3), and the other end of the spring (8) abuts against the second side block (4).
9. A precast pile forming mold according to claim 1, characterized in that: Both ends of the first mold plate (1) are equipped with sealing strips (6), and the sealing strips (6) abut against the second mold plate (2).