A prestressed concrete pipe pile forming mold
By setting reinforcement devices on the mold body, including a ring frame and a grooved rod, and combining them with limiting and auxiliary mechanisms, the problem of mold loosening was solved, and the forming quality of concrete pipe piles was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JUAO ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-16
AI Technical Summary
During the casting and molding process of concrete pipe piles, the bolts on the main body of the mold are prone to stripping, which can cause the mold to loosen and affect the molding quality of the pipe pile.
A reinforcement device, including a ring frame and a grooved rod, is used to fix the mold body to the bolts. The limiting mechanism and auxiliary mechanism are used for secondary reinforcement to improve the compressive strength of the mold body.
This enhances the connection stability of the mold body, prevents the mold from loosening during concrete pouring, and improves the forming quality of concrete pipe piles.
Smart Images

Figure CN224360408U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete pipe pile processing, and in particular to a prestressed concrete pipe pile forming mold. Background Technology
[0002] Prestressed concrete pipe piles enhance the compressive and bending resistance of the pipe pile by applying prestress to the steel bars before concrete pouring, thereby improving its bearing capacity and crack resistance. Concrete pipe pile forming molds are special mold equipment used to produce concrete pipe piles. They shape the concrete into specific shapes and sizes during the pouring process to ensure that the structure and strength of the pipe pile meet the design requirements. Their main function is to provide a standardized external shape and internal cavity shape so that pipe pile products that meet the specified dimensions and shapes can be formed after concrete pouring.
[0003] When casting and molding concrete pipe piles, two mold bodies are fixed together with several bolts. Then, concrete is poured into the two assembled mold bodies to form the pipe pile. After the concrete solidifies, the bolts are removed, the two mold bodies are separated, and the cast concrete pipe pile can be taken out. When the mold bodies are used for a long time, the bolts are prone to stripping in the screw holes on the mold bodies. As a result, the internal pressure of the mold bodies increases during concrete pouring, which can cause the fixing points between the two mold bodies to loosen, thus affecting the molding quality of the concrete pipe pile. Utility Model Content
[0004] The technical problem this utility model aims to solve is as follows: When casting and molding concrete pipe piles, two mold bodies are fixed together with several bolts, and then concrete is poured into the two assembled mold bodies to form a pipe pile. After the concrete solidifies, the bolts are removed, the two mold bodies are separated, and the cast concrete pipe pile can be taken out. However, after the mold bodies have been used for a long time, the bolts are prone to stripping in the screw holes on the mold bodies. As a result, the increased internal pressure of the mold bodies during concrete pouring can cause the fixing points between the two mold bodies to loosen, thereby affecting the molding quality of the concrete pipe pile.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a prestressed concrete pipe pile forming mold, including two mold bodies and several bolts. The two ends of the two mold bodies are fixedly connected by several bolts. The outer surface of the two mold bodies is provided with a reinforcement device. The reinforcement device can achieve the effect of reinforcement by clamping and covering the connection between the two mold bodies and the bolts through a ring frame and a grooved rod.
[0006] The effect achieved by the above-mentioned components is as follows: When the concrete pipe pile is cast and formed, two mold bodies are fixed together with several bolts. Then, a reinforcing device is fitted onto the outer surface of the two connected mold bodies for secondary reinforcement, making the connection between the two mold bodies more secure. In this way, when the internal pressure of the two mold bodies increases during concrete pouring, the two mold bodies will not be expanded apart, thus improving the forming quality of the concrete pipe pile. Then, concrete is poured into the inside of the two assembled mold bodies to form the pipe pile. After the concrete solidifies, the bolts are removed, the two mold bodies are separated, and the cast concrete pipe pile can be taken out.
[0007] Preferably, the reinforcement device includes a ring frame, with grooved rods symmetrically installed through one side of the ring frame, and mounting slots on both sides of the mold body. When the ring frame and grooved rods are fitted onto the outer surfaces of the two mold bodies, the two ends of the grooved rods are respectively inserted into the mounting slots on one side of the two mold bodies; a limiting mechanism, wherein the limiting mechanism is disposed between the inner wall of the ring frame and the outer surfaces of the two mold bodies, for limiting and fixing the fitted ring frame and grooved rods; and an auxiliary mechanism, wherein the auxiliary mechanism is disposed between one side of the two grooved rods, for reinforcing the outer surface of the mold body between the two grooved rods.
[0008] The effects achieved by the above-mentioned components are as follows: By setting up a reinforcement device, after the two mold bodies are fixed with bolts, the inner wall of the grooved rod can be aligned with the outer surface of the connection between the two mold bodies and fitted onto it, so that the two ends of the grooved rod are inserted into the mounting grooves of the two mold bodies until the ring frame is fitted onto the outer surface of one end of the two mold bodies and fixed and limited by the limiting mechanism. At the same time, the outer surface of the mold body is also reinforced a second time by the auxiliary mechanism, which can improve the compressive strength of the outer surface of the mold body. The grooved rod limits and reinforces the connection, so that when the internal pressure of the two mold bodies increases during concrete pouring, the two mold bodies will not be expanded apart, thus improving the forming quality of the concrete pipe pile.
[0009] Preferably, the limiting mechanism includes a locking block, with a locking groove on the outer surface of one end of each of the two mold bodies, and a sliding groove symmetrically provided on one side of the ring frame, wherein the locking block is slidably installed in the inner wall of the sliding groove, and one end is inserted into the inner wall of the locking groove; and a spring, wherein the two ends of the spring are respectively fixedly installed on one side of the locking block and one side of the inner wall of the sliding groove.
[0010] The effect achieved by the above components is as follows: by setting a limiting mechanism, the locking block is first slid to a certain position in the slide groove, causing the spring to contract. Then, after the grooved rod is sleeved on the outer surface of the connection between the two mold bodies and the inner wall of the mounting groove, the ring frame will also be sleeved on the outer surface of one end of the two mold bodies. At this time, the locking block is released, and under the reset action of the spring, one end is locked into the locking groove. The ring frame and the grooved rod can be sleeved on the outer surface of the two mold bodies and then limited and fixed, thus reinforcing the outer surface of the mold bodies.
[0011] Preferably, the limiting mechanism further includes a support rod, wherein one end of the support rod is fixedly installed on one side of the inner wall of the slide groove, and the other end is installed through the inner wall of the spring and slidably connected to the inner wall of the locking block.
[0012] The effect achieved by the above components is that by setting support rods, the inner walls of the locking block and spring can be supported and reinforced, making them less prone to damage during use and increasing their service life.
[0013] Preferably, the longitudinal section of the card block is L-shaped, and the height of one end is greater than the height of the groove.
[0014] The effect achieved by the above components is that by setting the locking block in an L-shape, one end of it can protrude beyond the height of the slide groove, making it easier to operate and facilitating the installation and disassembly of the ring frame and the groove rod.
[0015] Preferably, the inner wall of the end of the grooved rod away from the ring frame has a chamfer.
[0016] The effect achieved by the above components is that by setting the chamfer, the area at the entrance of the groove rod can be increased, making it easier to align with the edges of the two mold bodies and fit and lock them in place during installation.
[0017] Preferably, the auxiliary mechanism includes several arc-shaped blocks, wherein the two ends of the arc-shaped blocks are respectively fixedly installed on one side of the groove rod, and several brackets are fixedly installed on both sides of the arc-shaped blocks, and one side of the arc-shaped blocks and one side of the brackets abut against the outer surface of the mold body.
[0018] The effect achieved by the above components is that, by setting up an auxiliary mechanism, after the two grooved rods are sleeved on the outer surface of the connection between the two mold bodies, several arc-shaped blocks and supports will also be driven to fit tightly against the outer surface of the mold body, thereby improving the compressive strength of the outer surface of the mold body and increasing its service life.
[0019] Preferably, reinforcing rods are fixedly installed on both ends of the arc-shaped block, and one side of the reinforcing rod is fixedly installed on one side of the groove rod.
[0020] The effect achieved by the above components is that by setting up reinforcing rods, the connection area between the arc-shaped block and the reinforcing rods can be increased, making the connection more solid and stable, and the outer surface of the mold body more firmly reinforced.
[0021] The beneficial effects of this utility model are:
[0022] By setting up a reinforcement device, after the two mold bodies are fixed with bolts, the inner wall of the grooved rod can be aligned with the outer surface of the connection between the two mold bodies and fitted onto it. The two ends of the grooved rod are then inserted into the mounting grooves of the two mold bodies until the ring frame is fitted onto the outer surface of one end of the two mold bodies and fixed and limited by a limiting mechanism. At the same time, the outer surface of the mold body is also reinforced a second time by an auxiliary mechanism, which can improve the compressive strength of the outer surface of the mold body. The grooved rod limits and reinforces the connection, so that when the internal pressure of the two mold bodies increases during concrete pouring, the two mold bodies will not expand apart, thus improving the forming quality of the concrete pipe pile. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Figure 1 This is a schematic diagram of the structure of this utility model.
[0025] Figure 2 This is a three-dimensional structural diagram of the main body of the mold of this utility model;
[0026] Figure 3 for Figure 2 A three-dimensional schematic diagram of a local structure;
[0027] Figure 4 This is a three-dimensional structural diagram of the grooved rod of this utility model;
[0028] Figure 5 This is a three-dimensional structural diagram of the arc-shaped block of this utility model.
[0029] Legend: 1. Mold body; 2. Reinforcing device; 3. Bolt; 21. Mounting groove; 22. Ring frame; 23. Groove rod; 24. Limiting mechanism; 241. Slot; 242. Slide groove; 243. Spring; 244. Block; 245. Support rod; 25. Auxiliary mechanism; 251. Arc block; 252. Bracket; 253. Reinforcing rod. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Figure 1-5 The prestressed concrete pipe pile forming mold shown includes two mold bodies 1 and several bolts 3. Both ends of the two mold bodies 1 are fixedly connected by the bolts 3. A reinforcing device 2 is provided on the outer surface of the two mold bodies 1. The reinforcing device 2 can use a ring frame 22 and a grooved rod 23 to clamp and cover the connection between the two mold bodies 1 and the bolts 3, achieving a reinforced connection. The effect achieved by the above components is as follows: During the casting and forming of the concrete pipe pile, the two mold bodies 1 are fixedly installed with several bolts 3. Then, the reinforcing device 2 is fitted onto the outer surface of the two connected mold bodies 1 for secondary reinforcement, making the connection between the two mold bodies 1 more secure. This prevents the two mold bodies 1 from expanding apart when the internal pressure increases during concrete pouring, improving the forming quality of the concrete pipe pile. Concrete is then poured into the assembled two mold bodies 1 to form the pipe pile. After the concrete solidifies, the bolts 3 are removed, the two mold bodies 1 are separated, and the cast concrete pipe pile can be removed.
[0033] Figure 1-5The reinforcement device 2 shown includes a ring frame 22, with grooved rods 23 symmetrically installed through one side of the ring frame 22. Mounting slots 21 are provided on both sides of the mold body 1. When the ring frame 22 and grooved rods 23 are fitted onto the outer surfaces of the two mold bodies 1, the two ends of the grooved rods 23 are respectively inserted into the mounting slots 21 on one side of the two mold bodies 1. A limiting mechanism 24 is provided between the inner wall of the ring frame 22 and the outer surfaces of the two mold bodies 1, used to limit and fix the fitted ring frame 22 and grooved rods 23. An auxiliary mechanism 25 is provided between one side of the two grooved rods 23, used to reinforce the outer surface of the mold body 1 between the two grooved rods 23. By setting up the reinforcement device 2, after the two mold bodies 1 are fixed with bolts 3, the inner wall of the groove rod 23 can be aligned with the outer surface of the connection between the two mold bodies 1 and fitted onto it, so that the two ends of the groove rod 23 are inserted into the mounting groove 21 of the two mold bodies 1, until the ring frame 22 is fitted onto the outer surface of one end of the two mold bodies 1 and fixed and limited by the limiting mechanism 24. At the same time, the outer surface of the mold body 1 is also reinforced for the second time by the auxiliary mechanism 25, which can improve the compressive strength of the outer surface of the mold body 1. The groove rod 23 limits and reinforces the connection, so that when the internal pressure of the two mold bodies 1 increases during concrete pouring, the two mold bodies 1 will not be expanded, thus improving the forming quality of the concrete pipe pile.
[0034] Figure 1-5 The limiting mechanism 24 shown includes a locking block 244. The outer surface of one end of each of the two mold bodies 1 is provided with a locking groove 241. A sliding groove 242 is symmetrically provided on one side of the ring frame 22. The locking block 244 is slidably installed in the inner wall of the sliding groove 242, and one end is inserted into the inner wall of the locking groove 241. A spring 243 is also provided, with the two ends of the spring 243 being fixedly installed on one side of the locking block 244 and one side of the inner wall of the sliding groove 242, respectively. By setting a limiting mechanism 24, the locking block 244 is first slid to a certain position in the slide groove 242, causing the spring 243 to contract. Then, the grooved rod 23 is sleeved on the outer surface of the connection between the two mold bodies 1 and the inner wall of the mounting groove 21. The ring frame 22 is also sleeved on the outer surface of one end of the two mold bodies 1. At this time, the locking block 244 is released, and under the reset action of the spring 243, one end is locked into the locking groove 241. The ring frame 22 and the grooved rod 23 can be sleeved on the outer surface of the two mold bodies 1 and then limited and fixed, thus reinforcing the outer surface of the mold body 1.
[0035] Figure 1-5The limiting mechanism 24 shown also includes a support rod 245, one end of which is fixedly installed on one side of the inner wall of the slide groove 242, and the other end is installed through the inner wall of the spring 243 and slidably connected to the inner wall of the locking block 244. By setting the support rod 245, the inner walls of the locking block 244 and the spring 243 can be supported and reinforced, making them less prone to damage during use and improving their service life. The longitudinal section of the locking block 244 is L-shaped, and the height of one end is greater than the height of the slide groove 242. By setting the locking block 244 to an L-shape, one end of it can protrude beyond the height of the slide groove 242, making it easier to operate and facilitating the installation and disassembly of the ring frame 22 and the groove rod 23. The inner wall of the groove rod 23 away from the ring frame 22 has a chamfer. By setting the chamfer, the area at the entrance of the groove rod 23 can be increased, making it easier to align with the edges of the two mold bodies 1 and lock them in place during installation.
[0036] Figure 1-5 The auxiliary mechanism 25 shown includes several arc-shaped blocks 251, with each end of the arc-shaped block 251 fixedly mounted on one side of the grooved rod 23. Several supports 252 are fixedly mounted on both sides of the arc-shaped block 251. One side of the arc-shaped block 251 and one side of the supports 252 abut against the outer surface of the mold body 1. By setting up the auxiliary mechanism 25, after the two grooved rods 23 are fitted onto the outer surface of the connection between the two mold bodies 1, the arc-shaped blocks 251 and supports 252 will also be driven to press tightly against the outer surface of the mold body 1, improving the compressive strength of the outer surface of the mold body 1 and increasing its service life. Reinforcing rods 253 are fixedly mounted on both sides of the arc-shaped blocks 251, with one side of the reinforcing rod 253 fixedly mounted on one side of the grooved rod 23. By setting up the reinforcing rods 253, the connection area between the arc-shaped blocks 251 and the reinforcing rods 253 can be increased, making the connection more secure and stable, and providing a more robust reinforcement to the outer surface of the mold body 1.
[0037] Working principle: During the casting and molding of concrete pipe piles, two mold bodies 1 are fixed together with several bolts 3. The inner wall of the grooved rod 23 is aligned with the outer surface of the connection between the two mold bodies 1 and fitted onto it, so that both ends of the grooved rod 23 are engaged in the mounting grooves 21 of the two mold bodies 1. Then, the locking block 244 slides to one end in the sliding groove 242 to a certain position, causing the spring 243 to contract. After the ring frame 22 is fitted onto the outer surface of one end of the two mold bodies 1, the locking block 244 is released, so that under the reset action of the spring 243, one end is engaged into the locking groove 241. The ring frame 22 and the grooved rod 23 can then be fitted onto the two mold bodies. The outer surface of the main body 1 is fixed at the rear limit, which also causes several arc-shaped blocks 251 and brackets 252 to be tightly attached to the outer surface of the main body 1 of the mold, thus providing secondary reinforcement and improving the compressive strength of the outer surface of the main body 1. The groove rod 23 limits and reinforces the connection, so that when the internal pressure of the two main bodies 1 increases during concrete pouring, the two main bodies 1 will not be expanded apart, thus improving the forming quality of the concrete pipe pile. Then, concrete is poured into the interior of the two assembled main bodies 1 to form a pipe pile. After the concrete solidifies, the bolts 3 are removed, the two main bodies 1 are separated, and the poured concrete pipe pile can be taken out.
[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A prestressed concrete pipe pile forming mould, comprising two mould bodies (1) and a plurality of bolts (3), characterized in that: Both ends of two mold bodies (1) are fixedly connected through a plurality of bolts (3), and the outer surfaces of the two mold bodies (1) are provided with reinforcing devices (2), which can clamp and cover the connecting part of the two mold bodies (1) and the bolt (3) to achieve the effect of reinforcing connection through the circular ring frame (22) and the groove rod (23).
2. The prestressed concrete pipe pile forming mold according to claim 1, characterized in that: The reinforcing device (2) comprises a circular ring frame (22), a groove rod (23) is symmetrically installed on one side of the circular ring frame (22), and installation grooves (21) are formed on the two sides of the mold body (1); when the circular ring frame (22) and the groove rod (23) are sleeved and installed on the outer surfaces of the two mold bodies (1), the two ends of the groove rod (23) are respectively inserted and installed in the installation grooves (21) on one side of the two mold bodies (1); A limiting mechanism (24) is arranged between the inner wall of the circular ring frame (22) and the outer surfaces of the two mold bodies (1) and is used for limiting and fixing the sleeved circular ring frame (22) and groove rod (23); An auxiliary mechanism (25) is arranged between the two groove rods (23) on one side and is used for reinforcing the outer surfaces of the mold bodies (1) between the two groove rods (23).
3. The prestressed concrete pipe pile forming mold according to claim 2, characterized in that: The limiting mechanism (24) comprises a clamping block (244), a clamping groove (241) is formed in the outer surface of one end of each of the two mold bodies (1), and a sliding groove (242) is symmetrically formed in one side of the circular ring frame (22); the clamping block (244) is slidingly installed in the inner wall of the sliding groove (242) and has one end inserted in the inner wall of the clamping groove (241). A spring (243) is fixedly installed at the two ends of the clamping block (244) and the inner wall of the sliding groove (242).
4. The prestressed concrete pipe pile forming mold according to claim 3, characterized in that: The limiting mechanism (24) further comprises a supporting rod (245), one end of the supporting rod (245) is fixedly installed on one side of the inner wall of the sliding groove (242), and the other end is penetratingly installed in the inner wall of the spring (243) and is in sliding connection with the inner wall of the clamping block (244).
5. The prestressed concrete pipe pile forming mold according to claim 3, characterized in that: The longitudinal section of the clamping block (244) is L-shaped, and the height of one end is greater than the height of the sliding groove (242).
6. The prestressed concrete pipe pile forming mold according to claim 2, characterized in that: A chamfer is formed in the inner wall of the end of the groove rod (23) away from the circular ring frame (22).
7. The prestressed concrete pipe pile forming mold according to claim 2, characterized in that: The auxiliary mechanism (25) comprises a plurality of arc-shaped blocks (251), the two ends of the arc-shaped blocks (251) are fixedly installed on one side of the groove rod (23), a plurality of supports (252) are fixedly installed on the two sides of the arc-shaped blocks (251), and one side of the arc-shaped blocks (251) and one side of the supports (252) are in abutment with the outer surfaces of the mold bodies (1).
8. A prestressed concrete pipe pile forming mould according to claim 7, characterized in that: A reinforcing rod (253) is fixedly installed on one side of the groove rod (23).