A solution to the oblique angle transverse plate belt mold pouring tooling of the prefabricated box girder ring production line

Abstract

This invention relates to the field of bridge engineering construction technology, specifically to a tooling solution for casting oblique angle transverse diaphragms with formwork in a precast box girder ring production line. The tooling includes a beam mold, with uniformly distributed transverse diaphragm pre-reserved molds fixedly connected and connected to the surface of the beam mold. The surface of each transverse diaphragm pre-reserved mold has uniformly distributed rebar holes. When workers use hydraulic injection to inflate annular capsules and tightly bond them to the pre-reserved rebars and ring frame, the annular capsules tightly seal the gaps between the pre-reserved rebars and the rebar holes, eliminating the risk of grout leakage. Simultaneously, during the expansion process, the annular capsules move a baffle closer to the pre-reserved rebars through a ring groove. When hydraulic oil inside the annular capsule or external objects press towards the ring groove, the baffles resist these pressures, making the annular capsule more robust and effectively sealing the gaps between the ring frame and the pre-reserved rebars.

Description

Technical Field

[0001] This invention relates to the field of bridge engineering construction technology, and in particular to a tooling solution for casting precast box girder oblique angle transverse diaphragms with formwork in a circular production line. Background Technology

[0002] Diaphragms are structural members placed between beams to maintain cross-sectional shape and enhance lateral stiffness. Common diaphragm arrangements include orthogonal, oblique, and fan-shaped arrangements. The beam surface needs to have a certain amount of reinforcing bars of different diameters pre-installed for lateral connection with the diaphragms. The pre-installed reinforcing bars in the diaphragms are generally in two rows, and the end formwork often uses a single piece of steel plate with openings corresponding to the pre-installed reinforcing bars. Typically, the openings on the steel formwork should be slightly larger than the corresponding reinforcing bar diameter to facilitate demolding. However, grout leakage or foam adhesive intrusion is prone to occur at the connection between the diaphragm formwork and the reinforcing bars in box girders.

[0003] Currently, a Chinese patent discloses a precast box girder diaphragm template (publication number CN215881991U). Using end-cap sleeves can effectively fill the gaps between the diaphragm template and the reinforcing bars, providing better grout-stopping effects when filling with foam adhesive. It also prevents the foam adhesive from intruding into the diaphragm template and affecting the quality of the finished box girder. However, because the aforementioned device uses end-cap sleeves to hold the foam adhesive, the entire sleeve needs to be filled with foam adhesive to prevent grout leakage. This requires workers to use more foam adhesive to achieve the sealing effect. Furthermore, since the device cannot pre-seal the gaps between the pre-drilled holes and the reinforcing bars, workers can still easily inject foam adhesive into these gaps during pouring, significantly impacting the quality of the finished girder after casting. Summary of the Invention

[0004] The purpose of this invention is to provide a solution for the above-mentioned problems by providing a casting fixture for the oblique angle transverse diaphragm of a precast box girder ring production line with formwork. This solution improves upon the existing casting fixture for the oblique angle transverse diaphragm of a precast box girder ring production line, which has significant side effects in actual use and easily affects the quality of the subsequent finished girder.

[0005] This invention achieves the above-mentioned objective through the following technical solution: a tooling solution for casting oblique angle transverse diaphragms in a precast box girder circular production line, comprising a beam mold, wherein uniformly distributed transverse diaphragm pre-reserved molds are fixedly connected and communicated to the surface of the beam mold, and the surface of the transverse diaphragm pre-reserved molds are provided with uniformly distributed reinforcing bar holes, wherein a sealing device is embedded inside the reinforcing bar holes, and the other end of the sealing device penetrates through the reinforcing bar holes and extends to the outside of the transverse diaphragm pre-reserved molds; the inner wall of the transverse diaphragm pre-reserved molds is provided with uniformly distributed T-shaped channels that communicate with adjacent reinforcing bar holes, wherein the inner diameter of the T-shaped channels is larger than the inner diameter of the reinforcing bar holes, and the T-shaped channels are perpendicular to the transverse diaphragm pre-reserved molds; the sealing device includes a ring frame, wherein the ring frame is embedded... Installed on the inner wall of the T-shaped channel, one end of the ring frame is fixedly connected to and connected to a locking mechanism. The other end of the locking mechanism passes through the T-shaped channel and extends to the outside of the pre-reserved mold of the transverse partition. A sealing mechanism is embedded inside the ring frame. The other end of the sealing mechanism passes through the ring frame and extends to the outside of the locking mechanism. A guide mechanism fixedly connected to the ring frame is embedded inside the sealing mechanism. The other end of the guide mechanism passes through the ring frame and extends to the outside of the locking mechanism. A blocking mechanism is embedded on the surface of the sealing mechanism and connected to it. The sealing is achieved by hydraulic sealing, which can adapt to steel bars reserved at various angles. There is no need to customize the sealing device according to the reserved angle of the steel bar, thus expanding the application range of the sealing device.

[0006] Preferably, the sealing mechanism includes an annular capsule embedded in the inner wall of a ring frame. A liquid guide tube, also fixedly connected to and communicating with the ring frame, is attached to the surface of the annular capsule. Both the annular capsule and the liquid guide tube are filled with hydraulic oil. The other end of the liquid guide tube passes through the ring frame and extends into the locking mechanism. A connector valve is fixedly connected to the other end of the liquid guide tube. Two annular grooves are symmetrically distributed on both sides of the annular capsule's interior. A ring-shaped baffle is fixedly connected to the inner wall of each annular groove away from the ring frame. A guide groove is formed at the other end of each baffle. A guide rod is slidably connected to the inner wall of the guide groove. The other end of the guide rod extends to the outside of the guide groove and is rotatably connected to a rotating seat fixedly connected to the ring frame. When workers use hydraulic injection to expand the annular capsule and tightly bond it to the pre-reserved reinforcing bars and ring frame, the annular capsule effectively seals the gap between the pre-reserved reinforcing bars and the reinforcing bar holes, eliminating the risk of grout leakage. Simultaneously, during expansion, the annular capsule moves a baffle closer to the pre-reserved reinforcing bars via its ring groove. When hydraulic oil inside the annular capsule or external objects press against the ring groove, the baffle resists the pressure, making the annular capsule more robust and effectively sealing the gap between the ring frame and the pre-reserved reinforcing bars. Compared to existing foam adhesive sealing methods, this method requires no extensive operational experience from workers to seal the gap between the pre-reserved reinforcing bars and the reinforcing bar holes. Furthermore, this sealing method does not penetrate deep into the interior of the transverse diaphragm pre-reserved mold, ensuring the quality of the finished beam after casting and thus guaranteeing the overall quality of the finished beam.

[0007] Preferably, the baffle has a fan-shaped cross-section, and the fan surface of the baffle is parallel to the interior of the annular capsule. This increases the contact area between the baffle and the annular groove, thereby improving the shaping effect of the annular capsule.

[0008] Preferably, the locking mechanism includes an externally threaded tube, which is fixedly connected to one end of the ring frame. The other end of the externally threaded tube extends to the outside of the T-shaped channel, and the other end of the connector valve extends to the outside of the externally threaded tube. The surface of the externally threaded tube is threaded with a nut that contacts the pre-reserved mold of the diaphragm. When the worker screws the nut onto the externally threaded tube and it is tightly pressed against the outer surface of the pre-reserved mold of the diaphragm, the nut can firmly lock the ring frame, sealing mechanism, guiding mechanism, and blocking mechanism through the externally threaded tube, so that the sealing device as a whole can operate stably, thereby reducing the failure rate during the pouring process.

[0009] Preferably, the baffle, guide rod, and rotating seat are all made of austenitic stainless steel. The baffle has evenly distributed positioning grooves inside, all communicating with the guide groove. The guide rod has a mounting cavity aligned with the positioning groove on its surface. The guiding mechanism includes an electromagnet, a magnetic plate, and a conductive connector. The electromagnet is fixedly connected to the inner wall of the mounting cavity away from the positioning groove. The magnetic plate is slidably connected to the inner wall of the mounting cavity and positioned between the electromagnet and the positioning groove. One end of the magnetic plate is fixedly connected to a positioning block that engages with an adjacent positioning groove, and the other end of the magnetic plate is fixedly connected to a first spring that is fixedly connected to the mounting cavity. The conductive connector is located inside the externally threaded tube. The other end of the conductive connector passes through the external threaded pipe and extends into the interior of the ring frame. The other end of the conductive connector is electrically connected to two conductive rings, each embedded in the inner wall of the ring frame. The other end of the rotating seat is fixedly connected to the adjacent conductive ring. When the electromagnet is not energized, this allows the baffle and the guide rod to restrain each other, enabling the baffle to operate more stably. Even if the reserved steel bar vibrates, the baffle can still drive the annular capsule to stick tightly to the reserved steel bar, further reducing the risk of grout leakage. When the electromagnet is energized, the electromagnet can separate the positioning block from the positioning groove through the magnetic suction plate, thus unlocking the baffle and the guide rod. At this time, the operator can normally expand or contract the annular capsule.

[0010] Preferably, the first spring is an insulating rubber material component, and the first spring is always in a compressed state. This ensures that the first spring is not affected by the magnetic interference of the electromagnet, so as to ensure that the positioning block can reset itself.

[0011] Preferably, the cross-sectional shapes of the positioning groove and the positioning block are both matching right-angled triangles, and the inclined surfaces of the positioning groove and the positioning block face the rotating seat. This allows the baffle to approach the reserved steel bar without obstruction, eliminating the need for operators to activate the electromagnet during this process, thereby reducing the overall operating cost of the guiding mechanism.

[0012] Preferably, the guiding mechanism further includes a limiting rod, which is fixedly connected to the inner wall of the mounting cavity away from the positioning groove. The other end of the limiting rod passes through the first spring and the magnetic suction plate in sequence and is fixedly connected to the inner wall of the mounting cavity near the positioning groove. This ensures that the magnetic suction plate and the first spring run along the specified running trajectory, thereby reducing the failure rate of the guiding mechanism.

[0013] Preferably, the blocking mechanism includes a connecting pipe, with the opposite ends of the connector valve and the liquid guide pipe fixedly connected and communicating with the two ends of the connecting pipe, a sealing sleeve fixedly connected to the inner wall of the connecting pipe, and an I-shaped rod slidably connected to the inner wall of the sealing sleeve. Both ends of the I-shaped rod extend to the outside of the sealing sleeve, and liquid guide grooves are provided at both ends of the I-shaped rod. Two liquid guide holes are provided on the surface of the I-shaped rod and communicate with the two liquid guide grooves respectively. Both liquid guide holes are located inside the sealing sleeve. Two second springs are sleeved on the surface of the I-shaped rod, with the two ends of the second springs respectively between the I-shaped rod and the sealing sleeve. Without affecting the normal hydraulic oil injection of the high-pressure injection pump, the blocking mechanism can bidirectionally block the liquid guide pipe and the connector valve after the high-pressure injection pump stops running. This not only prevents outside air from entering the liquid guide pipe but also prevents hydraulic oil from leaking to the connector valve.

[0014] Preferably, protective grooves are provided at the opposite ends of the I-shaped rod and the sealing sleeve, and one end of the second spring passes through the interior of the protective groove and contacts the protective groove. This can prevent the second spring from being over-compressed, so as to ensure that the second spring always operates within its elastic limit, thereby extending the service life of the second spring.

[0015] The beneficial effects of this invention are:

[0016] When workers use hydraulic injection to expand the annular capsule and tightly bond it to the pre-reserved reinforcing bars and the ring frame, the annular capsule tightly seals the gap between the pre-reserved reinforcing bars and the reinforcing bar holes, eliminating the risk of grout leakage. Simultaneously, during expansion, the annular capsule moves a baffle closer to the pre-reserved reinforcing bars via the ring groove. When hydraulic oil inside the annular capsule or external objects press towards the ring groove, the baffle resists these pressures, making the annular capsule more robust and effectively sealing the gap between the ring frame and the pre-reserved reinforcing bars. Compared to existing foam sealing methods, this method does not require workers to have extensive operational experience to seal the gap between the pre-reserved reinforcing bars and the reinforcing bar holes. Furthermore, this sealing method does not penetrate deep into the interior of the transverse diaphragm pre-reserved mold, ensuring the quality of the finished beam after casting and thus guaranteeing the overall quality of the finished beam.

[0017] When the workers screw the nut onto the external threaded pipe and it is tightly attached to the outer surface of the pre-reserved mold of the diaphragm, the nut can firmly lock the ring frame, sealing mechanism, guiding mechanism and blocking mechanism through the external threaded pipe, so that the sealing device can operate stably as a whole, thereby reducing the failure rate during the pouring process.

[0018] When the electromagnet is not energized, the baffle and the guide rod restrain each other, allowing the baffle to operate more stably. Even if the reserved steel bar vibrates, the baffle can still cause the annular capsule to stick tightly to the reserved steel bar, further reducing the risk of grout leakage. When the electromagnet is energized, the electromagnet can separate the positioning block from the positioning groove through the magnetic suction plate, thus unlocking the baffle and the guide rod. At this time, the workers can expand or contract the annular capsule normally.

[0019] Without affecting the normal hydraulic oil injection of the high-pressure injection pump, the blocking mechanism can bidirectionally block the liquid guide pipe and the connector valve after the high-pressure injection pump stops running. This not only prevents outside air from entering the liquid guide pipe, but also prevents hydraulic oil from leaking to the connector valve. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is an exploded view of a partially cut-off structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the sealing device in this invention;

[0023] Figure 4 This is a horizontal cross-sectional view of the sealing device in this invention;

[0024] Figure 5 This is a schematic diagram showing the connection between the sealing mechanism and the barrier mechanism of the present invention;

[0025] Figure 6 This is a vertical cross-sectional view of the sealing device in this invention;

[0026] Figure 7 This is a schematic diagram showing the connection between the sealing mechanism and the guiding mechanism in this invention;

[0027] Figure 8 This is a partial cutaway schematic diagram of the connection structure between the sealing mechanism and the guiding mechanism in this invention; Figure 9 for Figure 8 Enlarged view of A in the middle;

[0028] Figure 10 This is a horizontal cross-sectional view of the blocking mechanism of the present invention.

[0029] In the diagram: 1. Beam mold; 2. Diaphragm pre-reserved mold; 3. Rebar hole; 4. Sealing device; 5. T-shaped channel; 6. Ring frame; 7. Locking mechanism; 701. External threaded pipe; 702. Nut; 8. Sealing mechanism; 801. Annular capsule; 802. Liquid guide pipe; 803. Connecting valve; 804. Annular groove; 805. Baffle; 806. Guide groove; 807. Guide rod; 808. Rotating seat; 809. Positioning groove ; 810. Mounting cavity; 9. Guide mechanism; 901. Electromagnet; 902. Magnetic suction plate; 903. Positioning block; 904. First spring; 905. Conductive connector; 906. Conductive ring; 907. Limiting rod; 10. Barrier mechanism; 1001. Connecting pipe; 1002. Sealing sleeve; 1003. I-shaped rod; 1004. Liquid guiding groove; 1005. Liquid guiding hole; 1006. Second spring; 1007. Protective groove. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] In practical implementation: such as Figure 1-10As shown, a tooling solution for casting oblique angle transverse diaphragms in a precast box girder circular production line includes a beam mold 1. The surface of the beam mold 1 is fixedly connected to and communicates with uniformly distributed transverse diaphragm pre-cast molds 2. The surface of the transverse diaphragm pre-cast molds 2 has uniformly distributed reinforcing bar holes 3. A sealing device 4 is embedded inside each reinforcing bar hole 3, and the other end of the sealing device 4 passes through the reinforcing bar hole 3 and extends to the outside of the transverse diaphragm pre-cast molds 2. The inner wall of the transverse diaphragm pre-cast molds 2 has uniformly distributed reinforcing bar holes 3, each communicating with an adjacent reinforcing bar hole 3. The T-shaped channel 5 has an inner diameter larger than that of the rebar hole 3, and is perpendicular to the pre-reserved mold 2 of the transverse diaphragm. The sealing device 4 includes a ring frame 6, which is embedded in the inner wall of the T-shaped channel 5. One end of the ring frame 6 is fixedly connected to and communicates with a locking mechanism 7, and the other end of the locking mechanism 7 passes through the T-shaped channel 5 and extends to the outside of the pre-reserved mold 2 of the transverse diaphragm. A sealing mechanism 8 is embedded inside the ring frame 6, and the other end of the sealing mechanism 8 passes through the ring frame 6 and extends to the outside of the locking mechanism 7. The sealing mechanism 8 has an embedded guide mechanism 9 that is fixedly connected to the ring frame 6. The other end of the guide mechanism 9 passes through the ring frame 6 and extends to the outside of the locking mechanism 7. The sealing mechanism 8 has an embedded barrier mechanism 10 that is connected to it. The design of the diaphragm pre-reserved mold 2 and the rebar hole 3 is adopted. Compared with the existing method of pre-embedding sleeves in the precast beam, the workers can directly combine the rebar reserved for the external diaphragm with the rebar frame of the precast beam without pre-embedding sleeves. This effectively reduces the complexity of the subsequent construction of the oblique angle diaphragm and solves the problems of rebar connection misalignment, insufficient tensile strength, and poor rebar connection quality caused by the pre-embedded sleeve connection of the diaphragm. At the same time, the design of the convex diaphragm pre-reserved mold 2 allows the workers to more accurately connect the oblique angle diaphragm with the precast beam, solving the problems of poor concrete appearance quality and poor concrete bonding quality caused by the secondary pouring of the diaphragm. By using the pre-cast diaphragm protrusion, the secondary pouring process is reduced, the production time of the precast beam is shortened, and the quality of the subsequent cast-in-place connection of the diaphragm is effectively met.

[0032] like Figure 4-10As shown, the sealing mechanism 8 includes an annular capsule 801, which is embedded in the inner wall of the ring frame 6. A liquid guide tube 802, which is fixedly connected to and communicates with the surface of the annular capsule 801 and is also fixedly connected to the ring frame 6, is fixedly filled with hydraulic oil. The other end of the liquid guide tube 802 passes through the ring frame 6 and extends into the locking mechanism 7. A connector valve 803 is fixedly connected to and communicates with the other end of the liquid guide tube 802. Two annular grooves 804 are formed on the surface of the annular capsule 801, symmetrically distributed on both sides of the annular capsule 801. A ring-shaped baffle 805 is fixedly connected to the inner wall of the annular groove 804 away from the ring frame 6. A guide groove 806 is formed at the other end of the baffle 805, and the inner wall of the guide groove 806 is slidably connected to... There is a guide rod 807, the other end of which extends through to the outside of the guide groove 806. The other end of the guide rod 807 is rotatably connected to a rotating seat 808 that is fixedly connected to the ring frame 6. The cross-sectional shape of the baffle 805 is fan-shaped, and the fan surface of the baffle 805 is parallel to the inside of the annular capsule 801. When the staff needs to separate the reserved steel bar from the sealing device 4, the staff only needs to use an external high-pressure injection pump to extract the hydraulic oil from the annular capsule 801 through the connector valve 803 and the liquid guide pipe 802. At this time, the annular capsule 801 shrinks away from the reserved steel bar. The annular capsule 801 drives the baffle 805 to move back through the annular groove 804. The baffle 805 moves back along the guide rod 807 through the guide groove 806 until the reserved steel bar is completely separated from the annular capsule 801.

[0033] like Figure 4 As shown, the locking mechanism 7 includes an externally threaded tube 701, which is fixedly connected to one end of the ring frame 6. The other end of the externally threaded tube 701 extends to the outside of the T-shaped channel 5, and the other end of the connector valve 803 extends to the outside of the externally threaded tube 701. The surface of the externally threaded tube 701 is threaded with a nut 702 that contacts the pre-reserved mold 2 of the transverse partition. After the worker inserts the externally threaded tube 701 through the T-shaped channel 5, the worker only needs to screw the nut 702 onto the surface of the externally threaded tube 701 and make the nut 702 spiral along the surface of the externally threaded tube 701 closer to the pre-reserved mold 2 of the transverse partition until it is tightly pressed against the pre-reserved mold 2 of the transverse partition.

[0034] like Figure 6-9As shown, the baffle 805, guide rod 807, and rotating seat 808 are all made of austenitic stainless steel. The baffle 805 has evenly distributed positioning grooves 809 that communicate with the guide groove 806. The guide rod 807 has a mounting cavity 810 aligned with the positioning grooves 809 on its surface. The guiding mechanism 9 includes an electromagnet 901, a magnetic plate 902, and a conductive connector 905. The electromagnet 901 is fixedly connected to the inner wall of the mounting cavity 810 away from the positioning grooves 809. The magnetic plate 902 is slidably connected to the inner wall of the mounting cavity 810 and is positioned between the electromagnet 901 and the positioning grooves 809. One end of the magnetic plate 902 is fixedly connected to a positioning block 903 that engages with the adjacent positioning groove 809. The other end of 902 is fixedly connected to a first spring 904 that is fixedly connected to the mounting cavity 810. A conductive connector 905 is disposed inside the external threaded tube 701. The other end of the conductive connector 905 passes through the external threaded tube 701 and extends into the interior of the ring frame 6. The other end of the conductive connector 905 is electrically connected to two conductive rings 906, each of which is embedded in the inner wall of the ring frame 6. The other end of the rotating seat 808 is fixedly connected to the adjacent conductive ring 906. The first spring 904 is an insulating rubber material component and is always in a compressed state. The cross-sectional shapes of the positioning groove 809 and the positioning block 903 are both matching right-angled triangles, and the inclined surfaces of the positioning groove 809 and the positioning block 903 both face the rotating seat 808.The guide mechanism 9 also includes a limiting rod 907, which is fixedly connected to the inner wall of the mounting cavity 810 away from the positioning groove 809. The other end of the limiting rod 907 passes through the first spring 904 and the magnetic plate 902 in sequence and is fixedly connected to the inner wall of the mounting cavity 810 near the positioning groove 809. As the baffle 805 moves outward along the guide rod 807 through the guide groove 806, the positioning block 903 comes into contact with the inclined surface of the positioning groove 809. At this time, the positioning block 903 and the positioning groove 809 can no longer restrain each other, and the baffle 805 can move outward normally until the baffle 805... 05. Move to the designated position and align the positioning block 903 with the corresponding positioning groove 809. At this time, the positioning block 903 is no longer obstructed, and the first spring 904 quickly pushes the positioning block 903 into the corresponding positioning groove 809 through the magnetic suction plate 902. If the reserved steel bar vibrates during vibration, the reserved steel bar pushes against the baffle 805 through the annular capsule 801 and the annular groove 804. At this time, the direct surfaces of the positioning block 903 and the positioning groove 809 are in contact with each other, and the positioning block 903 and the positioning groove 809 restrain each other. At this time, the baffle 805 cannot retract, and the baffle 805 can then pass through the annular capsule 801 and the annular groove 804. The groove 804 tightly presses the inner side of the annular capsule 801 against the surface of the reserved reinforcing steel to prevent the slurry inside the pre-reserved mold 2 of the transverse diaphragm from leaking to the outside. When the operator needs to retract the baffle 805 along with the annular capsule 801, the operator only needs to connect the external electrical connector to the conductive connector 905, and then energize the conductive connector 905 through the external electrical connector. The conductive connector 905 simultaneously energizes the two conductive rings 906, and the conductive rings 906 simultaneously energize all the rotating seats 808 connected to them. The rotating seats 808 energize the guides connected to them. When the guide rod 807 is energized, it powers the electromagnet 901 through the mounting cavity 810. The electromagnet 901 generates magnetic force, quickly attracting the magnetic plate 902. The magnetic plate 902 causes the positioning block 903 to separate from the positioning groove 809 and retract into the mounting cavity 810. At this point, the baffle 805 is no longer obstructed by the guide rod 807. During the subsequent shrinking and deflation of the annular capsule 801, the annular capsule 801 can then move normally back along the guide rod 807 through the guide groove 806, driven by the annular groove 804 and the baffle 805.

[0035] like Figure 10As shown, the barrier mechanism 10 includes a connecting pipe 1001, a connector valve 803, and a liquid guide pipe 802. The opposite ends of these components are fixedly connected to and communicate with both ends of the connecting pipe 1001. A sealing sleeve 1002 is fixedly connected to the inner wall of the connecting pipe 1001. An I-shaped rod 1003 is slidably connected to the inner wall of the sealing sleeve 1002. Both ends of the I-shaped rod 1003 extend to the outside of the sealing sleeve 1002. Liquid guide grooves 1004 are provided at both ends of the I-shaped rod 1003. The surface of the I-shaped rod 1003 has two liquid guiding holes 1005, each communicating with one of the two liquid guiding grooves 1004. Both liquid guiding holes 1005 are located inside the sealing sleeve 1002. Two second springs 1006 are fitted onto the surface of the I-shaped rod 1003, with their ends respectively connected to the I-shaped rod 1003 and the sealing sleeve 1002. Protective grooves 1007 are provided at the opposite ends of both the I-shaped rod 1003 and the sealing sleeve 1002. One end extends into the interior of the protective groove 1007 and contacts the protective groove 1007. When the external high-pressure injection pump draws or injects hydraulic oil, the hydraulic oil quickly flows into the corresponding guide groove 1004. At this time, the hydraulic oil impacts the I-shaped rod 1003 through the corresponding guide groove 1004, causing the I-shaped rod 1003 to move under the impact. When the guide hole 1005 connected to the guide groove 1004 moves to the outside of the sealing sleeve 1002, the hydraulic oil can flow out quickly through the guide hole 1005 and then enter the guide pipe 802 or the joint valve 803 along the connecting pipe 1001. When the high-pressure injection pump stops running, the second spring 1006 returns the I-shaped rod 1003 to its original position. At this time, both guide holes 1005 are covered by the sealing sleeve 1002. The hydraulic oil on the side of the sealing sleeve 1002 near the guide pipe 802 is firmly restricted inside the connecting pipe 1001, reducing the probability of hydraulic oil leakage.

[0036] In using this invention, workers need to pre-define the beam mold 1 and a corresponding number of diaphragm pre-reserved molds 2 according to the precast box girder and diaphragm. Then, according to the required reinforcing bars penetrating through the diaphragm pre-reserved molds 2, a corresponding number of reinforcing bar holes 3 are opened at designated positions. Next, T-shaped channels 5 matching the number of reinforcing bar holes 3 are opened on the inner wall of the diaphragm pre-reserved molds 2. At this time, workers not only need to ensure that the T-shaped channels 5 are connected to adjacent reinforcing bar holes 3, but also that the T-shaped channels 5 are perpendicular to the inner wall of the diaphragm pre-reserved molds 2. After the reinforcing bar holes 3 and T-shaped channels 5 are all opened, the workers... Next, the pre-reserved mold 2 for the diaphragm is welded to the corresponding position of the beam mold 1. Then, the workers embed the sealing device 4 into the corresponding T-shaped channel 5, and make the locking mechanism 7 in the sealing device 4, together with the sealing mechanism 8 and the guiding mechanism 9, pass through the T-shaped channel 5 and extend to the outside of the pre-reserved mold 2 for the diaphragm. Then, the workers can arrange the steel frame in the beam mold 1 and the pre-reserved mold 2 for the diaphragm. Then, the steel bars reserved for the diaphragm are passed through the steel bar hole 3 from the inside of the ring frame 6 and the ring capsule 801, and extend to the outside of the pre-reserved mold 2 for the diaphragm through the steel bar hole 3.

[0037] After the pre-reserved rebar is installed, the worker connects an external high-pressure injection pump with hydraulic oil to the connector valve 803. The high-pressure injection pump then injects hydraulic oil into the connector valve 803, which guides the hydraulic oil into the guide pipe 802. The guide pipe 802 then guides the hydraulic oil into the annular capsule 801. At this point, the annular capsule 801 expands under pressure, and due to the constraint of the ring frame 6, it can only expand towards the pre-reserved rebar until it completely encloses it. At this point, the gap between the ring frame 6 and the pre-reserved rebar is sealed. Simultaneously, as the annular capsule 801 expands towards the pre-reserved rebar, it also moves the annular groove 804 closer to it. 04 Pull the baffle 805. The baffle 805 moves outward along the guide rod 807 through the guide groove 806. At this time, the baffle 805 is tightly fitted inside the annular groove 804. When the hydraulic oil inside the annular capsule 801 or external objects squeeze towards the annular groove 804, the baffle 805 can resist these pressures, making the annular capsule 801 more rigid and thus maintaining an effective seal between the ring frame 6 and the reserved steel bar. Compared with the existing foam glue sealing method, this method does not require the staff to have mature operating experience to seal the gap between the reserved steel bar and the steel bar hole 3. Moreover, this sealing method does not penetrate into the interior of the transverse diaphragm reserved mold 2, ensuring the quality of the finished beam after casting, and thus ensuring the quality of the finished beam.

[0038] 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 tooling solution for casting precast box girder oblique angle transverse diaphragm in a circular production line, comprising a beam mold (1), characterized in that: The surface of the beam mold (1) is fixedly connected and connected to a uniformly distributed diaphragm pre-reserved mold (2). The surface of the diaphragm pre-reserved mold (2) is provided with uniformly distributed steel bar holes (3). A sealing device (4) is embedded in the inside of the steel bar holes (3). The other end of the sealing device (4) passes through the steel bar holes (3) and extends to the outside of the diaphragm pre-reserved mold (2). The inner wall of the diaphragm pre-reserved mold (2) is provided with T-shaped channels (5) that are evenly distributed and connected to the adjacent steel bar holes (3). The inner diameter of the T-shaped channel (5) is larger than the inner diameter of the steel bar hole (3). The T-shaped channel (5) is perpendicular to the diaphragm pre-reserved mold (2). The sealing device (4) includes a ring frame (6), which is embedded in the inner wall of the T-shaped channel (5). One end of the ring frame (6) is fixedly connected to and connected to a locking mechanism (7). The other end of the locking mechanism (7) passes through the T-shaped channel (5) and extends to the outside of the pre-reserved mold (2) of the diaphragm. A sealing mechanism (8) is embedded inside the ring frame (6). The other end of the sealing mechanism (8) passes through the ring frame (6) and extends to the outside of the locking mechanism (7). A guide mechanism (9) is fixedly connected to the ring frame (6) and embedded inside the sealing mechanism (8). The other end of the guide mechanism (9) passes through the ring frame (6) and extends to the outside of the locking mechanism (7). A blocking mechanism (10) is embedded in and connected to the surface of the sealing mechanism (8). The sealing mechanism (8) includes an annular capsule (801), which is embedded in the inner wall of the ring frame (6). The surface of the annular capsule (801) is fixedly connected to and communicates with a liquid guide tube (802) fixedly connected to the ring frame (6). Both the annular capsule (801) and the liquid guide tube (802) are filled with hydraulic oil. The other end of the liquid guide tube (802) passes through the ring frame (6) and extends into the interior of the locking mechanism (7). The other end of the liquid guide tube (802) is fixedly connected to and communicates with a connector valve (803). The surface of the annular capsule (801) has openings. There are two annular grooves (804), which are symmetrically distributed on both sides inside the annular capsule (801). The inner wall of the annular groove (804) away from the ring frame (6) is fixedly connected to a baffle (805) distributed in an annular shape. The other end of the baffle (805) is provided with a guide groove (806). The inner wall of the guide groove (806) is slidably connected to a guide rod (807). The other end of the guide rod (807) extends through to the outside of the guide groove (806). The other end of the guide rod (807) is rotatably connected to a rotating seat (808) fixedly connected to the ring frame (6).

2. The tooling for casting precast box girder oblique angle transverse diaphragms with formwork in a circular production line according to claim 1, characterized in that: The baffle (805) has a fan-shaped cross-section, and the fan surface of the baffle (805) is parallel to the interior of the annular capsule (801).

3. The tooling for casting precast box girder oblique angle transverse diaphragms with formwork in a circular production line according to claim 1, characterized in that: The locking mechanism (7) includes an external threaded tube (701), which is fixedly connected to one end of the ring frame (6). The other end of the external threaded tube (701) extends through the outside of the T-shaped channel (5). The other end of the connector valve (803) extends through the outside of the external threaded tube (701). The surface of the external threaded tube (701) is threaded with a nut (702) that contacts the pre-reserved mold (2) of the transverse partition.

4. The tooling for casting precast box girder oblique angle transverse diaphragms with formwork in a circular production line according to claim 3, characterized in that: The baffle (805), guide rod (807), and rotating seat (808) are all made of austenitic stainless steel. The baffle (805) has evenly distributed positioning grooves (809) that communicate with the guide groove (806). The guide rod (807) has a mounting cavity (810) aligned with the positioning groove (809) on its surface. The guiding mechanism (9) includes an electromagnet (901), a magnetic plate (902), and a conductive connector (905). The electromagnet (901) is fixedly connected to the inner wall of the mounting cavity (810) away from the positioning groove (809). The magnetic plate (902) is slidably connected to the inner wall of the mounting cavity (810). The magnetic plate (902) is positioned between the electromagnet (901) and... Between the positioning slots (809), one end of the magnetic suction plate (902) is fixedly connected to a positioning block (903) that engages with the adjacent positioning slot (809), and the other end of the magnetic suction plate (902) is fixedly connected to a first spring (904) that is fixedly connected to the mounting cavity (810). The conductive connector (905) is located inside the external threaded tube (701), and the other end of the conductive connector (905) passes through the external threaded tube (701) and extends into the interior of the ring frame (6). The other end of the conductive connector (905) is electrically connected to two conductive rings (906) that are embedded in the inner wall of the ring frame (6). The other end of the rotating seat (808) is fixedly connected to the adjacent conductive ring (906).

5. The tooling for casting precast box girder oblique angle transverse diaphragms with formwork in a circular production line according to claim 4, characterized in that: The first spring (904) is an insulating rubber material component, and the first spring (904) is always in a compressed state.

6. The tooling for casting precast box girder oblique angle transverse diaphragms with formwork in a circular production line according to claim 4, characterized in that: The cross-sectional shapes of the positioning groove (809) and the positioning block (903) are both matching right triangles, and the inclined surfaces of the positioning groove (809) and the positioning block (903) are both facing the rotating seat (808).

7. The tooling for casting precast box girder oblique angle transverse diaphragms with formwork in a circular production line according to claim 4, characterized in that: The guide mechanism (9) also includes a limiting rod (907), which is fixedly connected to the inner wall of the mounting cavity (810) away from the positioning groove (809). The other end of the limiting rod (907) passes through the first spring (904) and the magnetic plate (902) in sequence and is fixedly connected to the inner wall of the mounting cavity (810) near the positioning groove (809).

8. The tooling for casting precast box girder oblique angle transverse diaphragms with formwork in a circular production line according to claim 1, characterized in that: The barrier mechanism (10) includes a connecting pipe (1001). The opposite ends of the connector valve (803) and the liquid guide pipe (802) are fixedly connected to and communicate with the two ends of the connecting pipe (1001). A sealing sleeve (1002) is fixedly connected to the inner wall of the connecting pipe (1001). An I-shaped rod (1003) is slidably connected to the inner wall of the sealing sleeve (1002). Both ends of the I-shaped rod (1003) extend to the outside of the sealing sleeve (1002). Both ends of the rod are provided with liquid guiding grooves (1004). The surface of the I-shaped rod (1003) is provided with two liquid guiding holes (1005) that are respectively connected to the two liquid guiding grooves (1004). The two liquid guiding holes (1005) are both located inside the sealing sleeve (1002). The surface of the I-shaped rod (1003) is provided with two second springs (1006). The two ends of the second springs (1006) are respectively between the I-shaped rod (1003) and the sealing sleeve (1002).

9. The tooling for casting precast box girder oblique angle transverse diaphragms with formwork in a circular production line according to claim 8, characterized in that: The opposite ends of the I-shaped rod (1003) and the sealing sleeve (1002) are provided with protective grooves (1007), and one end of the second spring (1006) passes through the interior of the protective groove (1007) and contacts the protective groove (1007).

Images