A maintenance and reinforcement device for bridge decks

Abstract

The application relates to the technical field of bridge crack repairing, and particularly provides a maintenance and reinforcement equipment for a bridge slab, which comprises a glue injection cylinder, glue injection openings and glue pouring openings are formed in the glue injection cylinder, a piston and an elastic piece are arranged in the glue injection cylinder, the elastic piece pushes the piston to extrude repairing glue into cracks, an adjusting assembly is further arranged in the glue injection cylinder, the adjusting assembly increases the pushing strength of the elastic piece on the piston compared with the previous pushing strength, the repairing glue can overcome the obstruction in the cracks, the glue can penetrate into the deepest part of the cracks, and a plurality of locking rods are arranged, so that the pushing strength of the elastic piece on the piston is gradually increased each time the piston is pushed, the pushing force of the piston on the repairing glue can be gradually increased, the repairing glue can be uniformly and densely distributed in the cracks, repairing quality problems caused by uneven glue flow can be avoided, and the strength after repairing can be improved.

Description

Technical Field

[0001] This invention relates to the field of bridge crack repair technology, and in particular to a maintenance and reinforcement device for bridge beams and slabs. Background Technology

[0002] Maintenance and reinforcement equipment is mainly used for the maintenance and repair of bridge structures to extend their service life and improve their load-bearing capacity and safety. When cracks appear in the bridge structure, maintenance and reinforcement equipment can be used to repair the cracks. During the repair process, repair materials need to be injected into the cracks to restore the structure's density, strength, and waterproof performance.

[0003] For example, Chinese patent CN205577463U discloses a concrete structure crack repair injector. This design includes a cylinder, a piston rod, a lower spring, a piston, and a handle. The lower end of the cylinder has an injection port, and the upper end has a top cover. The lower end of the piston rod is placed inside the cylinder and connected to the piston inside the cylinder. The upper end of the piston rod passes through the top cover and connects to the handle. The lower spring is fitted onto the piston rod, with its upper end connected to the top cover and its lower end connected to the piston. The piston rod has a hollow structure. The upper end of the piston rod has a straight insertion nozzle, the hollow part of which is connected to the hollow part of the piston rod. The straight insertion nozzle is connected to a grouting machine via a hose. The hollow structure of the piston rod is connected to the cylinder, allowing repair adhesive to enter the cylinder, pushing the piston and compressing the lower spring. When the lower spring releases, it pushes the piston, thus automatically injecting the repair adhesive into the crack.

[0004] Since the depth and length of the crack are uncertain, multiple injections of adhesive are required to repair the crack. When using the above method, the force exerted by the lower spring on the repair adhesive is the same each time adhesive is injected. As the amount of repair adhesive in the crack increases, it becomes more difficult for the adhesive to penetrate the crack, thus preventing the adhesive from reaching the deepest part of the crack and affecting the repair effect. Summary of the Invention

[0005] Therefore, it is necessary to provide a maintenance and reinforcement device for bridge beams and slabs to address the problem that current repair adhesives cannot reach the deepest parts of cracks, thus affecting the repair effect.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A maintenance and reinforcement device for bridge beams and slabs, comprising:

[0008] The glue injection cylinder has a glue injection port and a glue filling port at both ends. A glue filling tube is provided along the axial direction of the glue injection cylinder. The glue filling tube is inserted into the glue filling port, and the repair glue enters the glue injection cylinder through the glue filling tube.

[0009] A piston is slidably disposed inside the glue injection cylinder, and the piston is capable of sliding along the axial direction of the glue injection cylinder;

[0010] An elastic element is located between the piston and the glue inlet. When the glue tube fills the glue injection cylinder with repair glue, the repair glue can push the piston to move to compress the elastic element. When the glue tube stops filling the glue injection cylinder with repair glue, the elastic element can push the piston to move in the opposite direction to squeeze out the repair glue in the glue injection cylinder.

[0011] An adjustment component is provided, which can adjust the force with which the elastic element pushes the piston. When the piston compresses the elastic element multiple times, the adjustment component gradually increases the force with which the elastic element pushes the piston.

[0012] The adjusting assembly includes a rotating plate and a locking rod. The rotating plate is located between the elastic element and the glue inlet. A ring is fixedly provided on the rotating plate. The ring is located on the outer periphery of the elastic element. The locking rod is slidably provided on the side wall of the ring. The locking rod can extend and retract radially along the ring to lock or release the compressed elastic element.

[0013] In the initial state, the locking rod extends to lock the compressed elastic element, the piston moves a preset distance closer to the glue inlet and can push the ring to rotate, and the locking rod shortens to release the compressed elastic element;

[0014] A groove is provided on the inner wall of the glue injection cylinder corresponding to the position of the locking rod. The groove extends circumferentially along the glue injection cylinder. A compression spring is provided on the end of the locking rod away from the elastic element. The locking rod is not in the groove in the initial state. The locking rod compresses the compression spring and extends radially along the ring. When the ring rotates, it drives the locking rod into the groove. The compression spring pushes the locking rod to shorten radially along the ring.

[0015] Furthermore, the locking rod has a wedge-shaped surface at one end near the elastic member. When the elastic member is compressed, the outer periphery of the elastic member slides into contact with the wedge-shaped surface so that the locking rod is inserted into the elastic member.

[0016] Furthermore, the ring sleeve has a ring of teeth at one end near the piston, each tooth having an inclined surface and a vertical surface, and the inclined surface and vertical surface of adjacent teeth are connected. A wedge block is provided at one end of the piston near the ring sleeve. After the piston moves a preset distance toward the glue inlet, the wedge block slides into contact with the inclined surface of the teeth. The piston continues to move to push the ring sleeve to rotate. When the wedge block contacts the vertical surface of the adjacent teeth, the ring sleeve stops rotating, and the locking rod enters the groove.

[0017] Furthermore, the ring sleeve is provided with multiple locking rods, the height of which gradually decreases and they are evenly distributed around the circumference of the ring sleeve. The inner wall of the glue injection cylinder is provided with multiple sliding grooves. The multiple locking rods restrict the elastic element in multiple levels. The ring sleeve unlocks one locking rod each time it rotates, and the unlocking sequence is from top to bottom.

[0018] Furthermore, a triangular block is provided on one end of the piston near the injection port, and a toothed ring is fixedly provided inside the injection cylinder at one end near the injection port. When the piston moves toward the injection port and the triangular block slides into contact with the teeth of the toothed ring, the piston continues to move so that the teeth push the piston to rotate, and the direction of piston rotation is the same as the direction of ring rotation.

[0019] Furthermore, there are at least three locking levers.

[0020] Furthermore, a check valve is installed inside the glue-filling tube.

[0021] Furthermore, a connecting plate is provided on the injection port, which can fix the injection port to the crack.

[0022] The beneficial effects of this invention are:

[0023] This invention, by incorporating an adjustment component, ensures that the elastic element exerts a greater force on the piston with each push than the previous one. This gradually increases the piston's thrust on the repair adhesive, allowing the adhesive to overcome blockages within the crack and penetrate to its deepest point. This ensures that every part of the crack is fully filled with the repair adhesive, and also allows the adhesive to fully diffuse within the crack, filling all gaps and small cracks. The gradual increase in pressure ensures a dense and uniform distribution of the adhesive within the crack, preventing subsequent repair quality issues caused by uneven adhesive flow and improving the strength of the repaired material. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a maintenance and reinforcement device for bridge beams provided in an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A top view of the glue injection cylinder of a maintenance and reinforcement device for bridge beams provided in one embodiment;

[0026] Figure 3 This is a perspective view of the glue injection cylinder of a bridge beam and slab maintenance and reinforcement device provided in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the glue injection cylinder of a bridge beam and slab maintenance and reinforcement device provided in an embodiment of the present invention;

[0028] Figure 5 for Figure 4 A partially enlarged view of part X of the maintenance and reinforcement equipment for bridge beams provided in one embodiment;

[0029] Figure 6 for Figure 4 A top view of the internal structure of the glue injection cylinder of a bridge beam maintenance and reinforcement device provided in one embodiment;

[0030] Figure 7 for Figure 6 A cross-sectional view along AA of a bridge beam reinforcement device provided in one embodiment;

[0031] Figure 8 for Figure 7 A partially enlarged view of part Y of the maintenance and reinforcement equipment for bridge beams provided in one embodiment.

[0032] in:

[0033] 100. Glue injection cylinder; 110. Glue filling port; 120. Glue filling tube; 121. Check valve; 130. Glue filling port; 140. Connecting plate; 150. First slide groove; 160. Second slide groove; 170. Third slide groove;

[0034] 200, Piston; 201, Through hole; 210, Rotating plate; 220, Ring sleeve; 221, Sliding hole; 230, Tooth; 231, Inclined surface; 232, Vertical surface; 240, Wedge block; 250, Toothed ring; 251, Small tooth; 260, Triangular block; 270, Elastic element;

[0035] 300, First locking rod; 310, Second locking rod; 320, Third locking rod; 330, Compression spring; 340, Wedge-shaped surface;

[0036] 400. Glue dispensing machine. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0038] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They 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, and therefore should not be construed as limiting the invention.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] The following reference Figures 1-8 This invention describes a maintenance and reinforcement device for bridge beams and slabs.

[0041] A maintenance and reinforcement device for bridge beams and slabs, suitable for maintenance and repair of cracks in bridge structures, includes an injection cylinder 100 for filling the cracks with repair adhesive to maintain and repair them. The injection cylinder 100 has an injection port 130 and a filling port 110 at its two ends, respectively. A filling tube 120 is provided inside the injection cylinder 100 and distributed along the axial direction of the injection cylinder 100. The filling tube 120 is inserted into the filling port 110, and an injection machine 400 is connected to the filling tube 120. The opening of the injection machine 400 is connected to the filling tube 120, and the injection machine 400 can fill the injection cylinder 100 with repair adhesive through the filling tube 120. A piston 200 is slidably disposed inside the glue injection cylinder 100. The outer periphery of the piston 200 is in sliding and sealed contact with the interior of the glue injection cylinder 100. The piston 200 is fixedly connected to one end of the glue injection tube 120 located inside the glue injection cylinder 100. A through hole 201 is provided on the piston 200, which connects to the glue injection tube 120. The repair glue in the glue injection tube 120 enters the cavity between the piston 200 and the glue injection port 130 through the through hole 201 on the piston 200. An elastic element 270 is provided between the piston 200 and the end near the glue injection port 110.

[0042] When the glue injection machine 400 injects glue into the glue injection cylinder 100, the repair glue enters the glue injection cylinder 100 from the glue injection tube 120. The glue injection speed of the glue injection machine 400 is relatively fast, so most of the repair glue pushes the piston 200 to move closer to the glue injection port 110 to compress the elastic element 270, thereby causing the elastic element 270 to store force. When the glue injection machine 400 stops injecting glue, the elastic element 270 begins to release. The elastic element 270 pushes the piston 200 to move closer to the glue injection port 130. The piston 200 pushes the repair glue out of the glue injection port 130 and into the crack.

[0043] Because the depth and length of the crack are uncertain, multiple injections are required during crack repair. This means that repair adhesive needs to be added to the injection cylinder 100 multiple times. However, as the amount of repair adhesive in the crack increases, the resistance to the adhesive increases. Therefore, the pushing force of the elastic element 270 on the piston 200 needs to be increased to allow the repair adhesive to continue entering the crack and fully penetrate it, thus avoiding affecting the repair effect. Therefore, an adjustment component is installed inside the injection cylinder 100. This increases the elastic force of the elastic element 270 when it pushes the piston 200 to squeeze out the repair adhesive once and after replenishment. In other words, when the piston 200 pushes out the repair adhesive for the second time, the force of the elastic element 270 pushing the piston 200 is greater than the previous force, thus increasing the force of the elastic element 270 pushing the piston 200. This increases the force of the piston 200 pushing the repair adhesive, allowing the repair adhesive to fully penetrate the crack.

[0044] Specifically, in embodiments of the present invention, the adjusting assembly includes a rotating plate 210 and a locking rod, such as... Figure 3 and Figure 5 As shown, the rotating plate 210 is located between the elastic element 270 and the glue-filling port 110. A through groove is provided in the middle of the rotating plate 210, which cooperates with the glue-filling tube 120. A ring 220 is fixedly installed on the rotating plate 210. The ring 220 is located on the outer periphery of the elastic element 270, while the locking rod is slidably installed on the side wall of the ring 220. In order to facilitate the connection between the locking rod and the ring 220, a sliding hole 221 is provided on the side wall of the ring 220. The locking rod is located in the sliding hole 221. The locking rod can slide along the radial direction of the ring 220, so that one end of the locking rod has a telescopic function.

[0045] When the locking rod extends out of the sliding hole 221, it restricts the extension of the elastic element 270. Initially, when the elastic element 270 is fully compressed, the extended locking rod can lock the compressed elastic element 270 inside the ring 220. That is, the locking rod inserts into the elastic element 270. The locking rod restricts the return of the elastic element 270 between the locking rod and the rotating plate 210. The locking rod does not restrict the elastic element 270 between the locking rod and the piston 200. Therefore, when the elastic element 270 pushes the piston 200 for the first time, the locking rod on the elastic element 270 and the rotating plate 210... The first part is ineffective. When the piston 200 squeezes the repair adhesive, and the glue injection machine 400 injects adhesive into the glue injection tube again, the piston 200 begins to compress the elastic element 270. After the piston 200 moves a preset distance, it can push the ring 220 to rotate. When the ring 220 rotates, it can make the locking rod move in a radial direction away from the axis of the ring 220. Therefore, the locking rod is equivalent to shortening the retracted sliding hole 221, thereby releasing the restriction of the compressed elastic element 270. This increases the force when the elastic element 270 pushes the piston 200 again, which in turn makes the piston 200 push the repair adhesive with greater force.

[0046] It should be noted that a wedge-shaped surface 340 is provided on the end of the locking rod near the elastic element 270, such as... Figure 8 As shown, the wedge-shaped surface 340 allows the outer periphery of the elastic member 270 to slide on the locking rod when the elastic member 270 is compressed, so that the locking rod is inserted into the elastic member 270. In this embodiment, the elastic member 270 is a spring. When the spring is compressed, the wedge-shaped surface 340 on one end of the locking rod can not affect the compression of the spring.

[0047] More specifically, the present invention employs the following structure to achieve the function of the locking rod moving radially along the ring 220, the specific structure of which is as follows:

[0048] A groove is provided on the inner wall of the glue injection cylinder 100 at a position corresponding to the locking rod. The groove extends circumferentially along the glue injection cylinder 100, and both ends of the groove have smooth curved surfaces. The smooth curved surfaces allow the locking rod to smoothly enter or disengage from the groove. A compression spring 330 is provided on the end of the locking rod away from the elastic element 270. Figure 8 As shown, one end of the compression spring 330 is fixed to the outer wall of the ring 220, and the other end of the compression spring 330 is fixed to the end of the locking rod away from the elastic element 270. When the locking rod has not entered the groove, the locking rod slides in contact with the inner wall of the glue injection cylinder 100. At this time, the other end of the locking rod extends into the ring 220, thereby restricting the compressed elastic element 270 inside the ring 220. When the locking rod slides into the groove, the compression spring 330 on the locking rod is no longer compressed. The compression spring 330 pushes the locking rod into the groove, and the other end of the locking rod disengages from the ring 220, thereby releasing the restriction of the compressed elastic element 270.

[0049] It should be noted that, in order to enable the piston 200 to drive the ring sleeve 220 to rotate, a ring of teeth 230 is provided on the end of the ring sleeve 220 near the piston 200, such as... Figure 4 and Figure 7 As shown, the tooth 230 has an inclined surface 231 and a vertical surface 232, and the inclined surfaces 231 and vertical surfaces 232 of adjacent teeth 230 are connected to each other. A wedge block 240 is provided on one end of the piston 200 near the ring 220. When the piston 200 moves a preset distance towards the glue inlet 110, the wedge block 240 on the piston 200 can contact the inclined surface 231 of the tooth 230. The piston 200 continues to move, causing the wedge block 240 to slide relative to the inclined surface 231 of the tooth 230. Since the piston 200 and the glue injection cylinder 100... The inner wall has a large frictional force, so it is difficult for the piston 200 to rotate relative to the glue injection cylinder 100. Therefore, the ring sleeve 220 rotates relative to the glue injection cylinder 100, thereby realizing the function of the piston 200 pushing the ring sleeve 220 to rotate. When the ring sleeve 220 rotates, it drives the locking rod on the ring sleeve 220 to rotate synchronously. When the piston 200 moves to the limit position, the wedge block 240 on the piston 200 contacts the vertical surface 232 of the adjacent tooth 230, the ring sleeve 220 stops rotating, the locking rod on the ring sleeve 220 is located in the slide groove, and the locking rod releases the restriction of the elastic element 270.

[0050] In a further embodiment, the present invention has multiple locking rods, taking three as an example. The three locking rods are at different heights on the ring 220 and are evenly distributed in the circumferential direction of the ring 220. Three sliding grooves are also provided on the inner wall of the glue injection cylinder 100, and the distribution of the three sliding grooves is as follows: Figure 3 As shown, when multiple locking levers are set, the ring 220 can unlock one locking lever each time it rotates, and the unlocking is done sequentially from top to bottom. Each time a locking lever is unlocked, the force is increased. Multiple unlockings gradually increase the pushing force of the elastic element 270 on the piston 200. Gradually increasing the pressure of the injection of repair adhesive allows the repair adhesive to fully diffuse in the crack, filling all gaps and small cracks, avoiding the formation of voids or air bubbles, thereby enhancing the density of the crack and the overall repair effect.

[0051] For ease of description, using Figure 3 and Figure 4As shown, the three locking rods are named from top to bottom as first locking rod 300, second locking rod 310 and third locking rod 320, and the three sliding grooves are named from top to bottom as first sliding groove 150, second sliding groove 160 and third sliding groove 170. The first sliding groove 150 corresponds to the first locking rod 300, the second sliding groove 160 corresponds to the second locking rod 310, and the third sliding groove 170 corresponds to the third locking rod 320. In the initial state, the glue injection cylinder 100 is filled with repair glue for the first time, and the piston 200 pushes the ring sleeve 220 to rotate for the first time. The elastic element 270 is in a fully compressed state, and the three locking rods are not located in the three sliding grooves. The three locking rods restrict the elastic element 270 in the ring sleeve 220 in multiple stages. When the piston 200 squeezes the repair glue in the glue injection cylinder 100 for the second time, the glue injection machine 400 injects glue into the glue injection cylinder 100 for the second time. The piston 200 moves towards the glue filling port 110 to compress the elastic element 270. The wedge block 240 on the piston 200 pushes the ring sleeve 220 to rotate for the second time. The first locking rod 300 on the ring sleeve 220 enters the first sliding groove 150. The first locking rod 300 releases the first stage restriction of the elastic element 270, thereby increasing the force of the elastic element 270 pushing the piston 200. The force of the piston 200 squeezing the repair glue in the glue injection cylinder 100 for the second time is greater than the force of the piston 200 squeezing the repair glue in the glue injection cylinder 100 for the first time.

[0052] After the piston 200 completes its second compression, the dispensing machine 400 injects adhesive into the dispensing cylinder 100 for the third time. The piston 200 moves towards the dispensing port 110 to compress the elastic element 270. The wedge block 240 on the piston 200 pushes the ring sleeve 220 to rotate for the third time. At this time, the first locking rod 300 is still in the first sliding groove 150, while the second locking rod 310 on the ring sleeve 220 enters the second sliding groove 160, so that the second locking rod 310 releases the secondary restriction of the elastic element 270. The force of the elastic element 270 pushing the piston 200 increases, and the force of the piston 200 squeezing the repair adhesive in the dispensing cylinder 100 for the third time is greater than the force of the piston 200 squeezing the repair adhesive in the dispensing cylinder 100 for the second time.

[0053] After the piston 200 completes its third compression, the glue injection machine 400 injects glue into the glue injection cylinder 100 for the fourth time. The piston 200 moves towards the glue inlet 110 to compress the elastic element 270. The wedge block 240 on the piston 200 pushes the ring sleeve 220 to rotate for the fourth time. At this time, the first locking rod 300 and the second locking rod 310 are located in the first slide groove 150 and the second slide groove 160, respectively, while the third locking rod 320 on the ring sleeve 220 enters the third slide groove 170, so that the third locking rod 320 releases the three-level restriction of the elastic element 270. The force of the elastic element 270 pushing the piston 200 increases, and the force of the piston 200 squeezing the repair glue in the glue injection cylinder 100 for the fourth time is greater than the force of the piston 200 squeezing the repair glue in the glue injection cylinder 100 for the third time.

[0054] It should be noted that multiple locking rods are set on the outer periphery of the ring 220, and multiple sliding grooves are opened on the inner wall of the glue injection cylinder 100. This allows the elastic element 270 to push the piston 200 with greater force each time than the previous push, thereby gradually increasing the thrust of the piston 200 on the repair glue. This ensures that the repair glue penetrates into the crack as completely as possible. The gradual increase in pressure filling ensures that the glue is densely and evenly distributed in the crack without leaving gaps, avoiding subsequent repair quality problems caused by uneven flow of the repair glue, and improving the strength after repair.

[0055] In a further embodiment, the piston 200 is configured to repeatedly drive the ring 220 to rotate. Specifically, a triangular block 260 is provided on one end of the piston 200 near the injection port 130. Figure 4 and Figure 5 As shown, a toothed ring 250 is fixedly installed on one end of the glue injection cylinder 100 near the glue injection port 130. The toothed ring 250 has small teeth 251. The small teeth 251 have the same structure as the teeth 230 on the ring sleeve 220, and also have an inclined surface 231 and a vertical surface 232, but they face opposite directions and are smaller in size. When the piston 200 squeezes out all the repair glue in the glue injection cylinder 100, the triangular block 260 on the piston 200 will slide into contact with the small teeth 251. The small teeth 251 on the toothed ring 250 push the piston 200 to rotate, and the direction of rotation of the piston 200 is the same as the direction of rotation of the ring sleeve 220.

[0056] Specifically, such as Figure 4 As shown, when the piston 200 pushes the ring sleeve 220, the wedge block 240 on the piston 200 pushes the ring sleeve 220 clockwise (towards...). Figure 4 The piston rotates clockwise (viewed from top to bottom). When the piston 200 squeezes out all the repair adhesive from the glue injection cylinder 100, the triangular block 260 on the piston 200 contacts the toothed ring 250. The toothed ring 250 pushes the piston 200 to rotate clockwise by a small angle. This allows the piston 200 to push the ring sleeve 220 again, and the wedge block 240 on the piston 200 can slide into contact with the wedge surface 340 on the adjacent tooth 230. When the piston 200 continues to push, it can push the ring sleeve 220 to continue to rotate clockwise, thereby unlocking the next locking lever.

[0057] In a further embodiment, a check valve 121 is provided inside the glue dispensing tube 120. The check valve 121 can only allow the repair glue to enter the glue dispensing cylinder, but cannot allow the repair glue to flow out of the glue dispensing cylinder through the glue dispensing tube 120.

[0058] In a further embodiment, a connecting plate 140 is provided on the glue injection port 130. The connecting plate 140 has a hole communicating with the glue injection port 130. When the glue injection cylinder 100 needs to inject glue, the other parts of the crack are first sealed, leaving an opening on the crack. The connecting plate 140 is fixed on the opening, so that the glue injection port 130 is connected to the opening on the crack. The connecting plate 140 plays a fixing role, which allows the repair glue in the glue injection cylinder 100 to completely enter the crack and prevents the repair glue from leaking.

[0059] The specific working process of the maintenance and reinforcement equipment for bridge beams provided by the present invention will be described in conjunction with the above embodiments:

[0060] Install:

[0061] First, treat the crack by sealing its surface and leaving only one opening. Then, fix the connecting plate 140 to the opening of the crack, so that the glue injection port 130 and the opening of the crack are connected.

[0062] The first injection of adhesive into the crack is done using the adhesive injection cartridge 100.

[0063] Adjusting the position of the ring 220, the glue injection machine 400 injects glue into the glue injection tube 120. The repair glue enters the glue injection cylinder 100 through the glue injection tube 120 and the through hole 201 on the piston 200. Because the repair glue enters the cavity between the piston 200 and the glue injection port 130, and the glue injection speed of the glue injection machine 400 is relatively fast, a small portion of the repair glue is injected into the crack from the glue injection port 130. The large amount of repair glue pushes the piston 200 to move closer to the glue injection port 110, thereby compressing the elastic element 270. The wedge block 240 on the piston 200 slides into contact with the inclined surface 231 of the tooth 230 on the ring 220. The piston 200 pushes the ring 220 to rotate clockwise for the first time, so that the three locking rods are not located in the three sliding grooves. When the elastic element 270 is compressed, it springs back. The elastic element 270, located within the ring 220, is partially locked by the first locking rod 300, the second locking rod 310, and the third locking rod 320. In other words, the three locking rods are inserted into the compressed elastic element 270, thus restricting its reset within the ring 220. Once the repair adhesive in the glue injection cylinder 100 is fully filled, the elastic element 270 begins to reset, pushing the piston 200 towards the glue injection port 130. The piston 200 pushes the repair adhesive within the glue injection cylinder 100, causing it to gradually squeeze into the crack. When the piston 200 moves to the glue injection port 130, the triangular block 260 on the piston 200 slides into contact with the teeth 230 of the toothed ring 250. The toothed ring 250 pushes the piston 200 to rotate clockwise, and the repair adhesive in the glue injection cylinder 100 is completely squeezed out.

[0064] The glue injection cartridge 100 injects glue into the crack for the second time:

[0065] If the crack can still be filled with repair adhesive, the adhesive injection machine 400 injects adhesive into the adhesive injection cylinder 100 for the second time. The repair adhesive in the adhesive injection cylinder 100 pushes the piston 200 to move closer to the injection port 110 to compress the elastic element 270 for the second time. The wedge block 240 on the piston 200 slides into contact with the inclined surface 231 of the teeth 230 on the ring sleeve 220. The piston 200 pushes the ring sleeve 220 to rotate clockwise for the second time. The wedge block 240 stops rotating after contacting the vertical surface 232 of the teeth 230. During this process, the ring sleeve 220 drives the first locking rod 300, the second locking rod 310, and the third locking rod 320 to rotate synchronously. Only when the first locking rod 300 rotates to the position of the first sliding groove 150, thus... The first locking rod 300 enters the first slide groove 150 under the action of the compression spring 330, and the other end of the first locking rod 300 is pulled out of the elastic element 270, which releases the first-level restriction of the elastic element 270. The force of the elastic element 270 pushing the piston 200 increases. After the glue injection cylinder 100 is filled with repair glue, the elastic element 270 pushes the piston 200 to squeeze the repair glue. The force of the piston 200 pushing the repair glue a second time is greater than the force of the piston 200 pushing the repair glue a first time. When the piston 200 moves to the glue injection port 130, the triangular block 260 on the piston 200 slides into contact with the teeth 230 of the toothed ring 250. The toothed ring 250 pushes the piston 200 to rotate clockwise, and the repair glue in the glue injection cylinder 100 is squeezed out.

[0066] The glue injection cartridge 100 injects glue into the crack for the third time:

[0067] If the crack can still be filled with repair adhesive, the glue injection machine 400 injects adhesive into the glue injection cylinder 100 for the third time. The repair adhesive in the glue injection cylinder 100 pushes the piston 200 to move closer to the glue injection port 110 to compress the elastic element 270 for the third time. The wedge block 240 on the piston 200 slides into contact with the inclined surface 231 of the tooth 230 on the ring sleeve 220. The piston 200 pushes the ring sleeve 220 to rotate for the third time. After the wedge block 240 contacts the vertical surface 232 of the tooth 230, it stops rotating. During this process, the ring sleeve 220 drives the first locking rod 300, the second locking rod 310, and the third locking rod 320 to rotate synchronously. The first locking rod 300 is still in the first slide groove 150, and the third locking rod 320 has not rotated to the position of the third slide groove 170. Only the second locking rod... 310 rotates to the position of the second slide groove 160, so that the second locking rod 310 enters the second slide groove 160 under the action of the compression spring 330. The other end of the second locking rod 310 is pulled out of the elastic element 270, which releases the secondary restriction of the elastic element 270. The force of the elastic element 270 pushing the piston 200 increases. After the glue injection cylinder 100 is filled with repair glue, the elastic element 270 pushes the piston 200 to squeeze the repair glue. The force of the piston 200 pushing the repair glue for the third time is greater than the force of the piston 200 pushing the repair glue for the second time. When the piston 200 moves to the glue injection port 130, the triangular block 260 on the piston 200 slides into contact with the teeth 230 of the toothed ring 250. The toothed ring 250 pushes the piston 200 to rotate clockwise, and the repair glue in the glue injection cylinder 100 is squeezed out.

[0068] The fourth injection of adhesive into the crack is performed using the adhesive injection cartridge 100.

[0069] If the crack can still be filled with repair adhesive, the adhesive injection machine 400 injects adhesive into the adhesive injection cylinder 100 for the fourth time. The repair adhesive in the adhesive injection cylinder 100 pushes the piston 200 to move closer to the injection port 110 to compress the elastic element 270 for the fourth time. The wedge block 240 on the piston 200 slides into contact with the inclined surface 231 of the teeth 230 on the ring sleeve 220. The piston 200 pushes the ring sleeve 220 to rotate for the fourth time. After the wedge block 240 contacts the vertical surface 232 of the teeth 230, it stops rotating. During this process, the ring sleeve 220 drives the first locking rod 300, the second locking rod 310, and the third locking rod 320 to rotate synchronously. The first locking rod 300 and the second locking rod 310 remain in the first slide groove 150 and the second slide groove 160, while the third locking rod 320 rotates. The piston moves to the position of the third slide groove 170, so that the third locking rod 320 enters the third slide groove 170 under the action of the compression spring 330. The other end of the third locking rod 320 is pulled out of the elastic element 270, which releases the three-level restriction of the elastic element 270. The force of the elastic element 270 pushing the piston 200 increases. After the glue injection cylinder 100 is filled with repair glue, the elastic element 270 pushes the piston 200 to squeeze the repair glue. The force of the piston 200 pushing the repair glue for the fourth time is greater than the force of the piston 200 pushing the repair glue for the third time. When the piston 200 moves to the glue injection port 130, the triangular block 260 on the piston 200 slides into contact with the teeth 230 of the toothed ring 250. The toothed ring 250 pushes the piston 200 to rotate clockwise, and the repair glue in the glue injection cylinder 100 is squeezed out.

[0070] Filling complete:

[0071] Once the repair adhesive has fully penetrated the crack, wait for it to solidify to complete the repair and maintenance process.

[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A maintenance and reinforcement device for bridge beams and slabs, characterized in that, include: The glue injection cylinder has a glue injection port and a glue filling port at both ends. A glue filling tube is provided along the axial direction of the glue injection cylinder. The glue filling tube is inserted into the glue filling port, and the repair glue enters the glue injection cylinder through the glue filling tube. A piston is slidably disposed inside the glue injection cylinder, and the piston is capable of sliding along the axial direction of the glue injection cylinder; An elastic element is located between the piston and the glue inlet. When the glue tube fills the glue injection cylinder with repair glue, the repair glue can push the piston to move to compress the elastic element. When the glue tube stops filling the glue injection cylinder with repair glue, the elastic element can push the piston to move in the opposite direction to squeeze out the repair glue in the glue injection cylinder. An adjustment component is provided, which can adjust the force with which the elastic element pushes the piston. When the piston compresses the elastic element multiple times, the adjustment component gradually increases the force with which the elastic element pushes the piston. The adjusting assembly includes a rotating plate and a locking rod. The rotating plate is located between the elastic element and the glue inlet. A ring is fixedly provided on the rotating plate. The ring is located on the outer periphery of the elastic element. The locking rod is slidably provided on the side wall of the ring. The locking rod can extend and retract radially along the ring to lock or release the compressed elastic element. In the initial state, the locking rod extends to lock the compressed elastic element, the piston moves a preset distance closer to the glue inlet and can push the ring to rotate, and the locking rod shortens to release the compressed elastic element; A groove is provided on the inner wall of the glue injection cylinder corresponding to the position of the locking rod. The groove extends circumferentially along the glue injection cylinder. A compression spring is provided on the end of the locking rod away from the elastic element. The locking rod is not in the groove in the initial state. The locking rod compresses the compression spring and extends radially along the ring. When the ring rotates, it drives the locking rod into the groove. The compression spring pushes the locking rod to shorten radially along the ring.

2. The maintenance and reinforcement equipment for bridge beams and slabs according to claim 1, characterized in that, The locking rod has a wedge-shaped surface at one end near the elastic member. When the elastic member is compressed, the outer periphery of the elastic member slides in contact with the wedge-shaped surface so that the locking rod is inserted into the elastic member.

3. The maintenance and reinforcement equipment for bridge beams and slabs according to claim 1, characterized in that, The ring sleeve has a ring of teeth at one end near the piston. Each tooth has an inclined surface and a vertical surface, and the inclined surface and vertical surface of adjacent teeth are connected. A wedge block is provided at one end of the piston near the ring sleeve. After the piston moves a preset distance toward the glue inlet, the wedge block slides into contact with the inclined surface of the teeth. The piston continues to move to push the ring sleeve to rotate. When the wedge block contacts the vertical surface of the adjacent teeth, the ring sleeve stops rotating, and the locking rod enters the groove.

4. The maintenance and reinforcement equipment for bridge beams and slabs according to claim 3, characterized in that, The ring sleeve is provided with multiple locking rods, the height of which gradually decreases and they are evenly distributed around the circumference of the ring sleeve. The inner wall of the glue injection cylinder is provided with multiple sliding grooves. The multiple locking rods restrict the elastic element in multiple levels. The ring sleeve unlocks one locking rod each time it rotates, and the unlocking sequence is from top to bottom.

5. The maintenance and reinforcement equipment for bridge beams and slabs according to claim 4, characterized in that, A triangular block is provided on one end of the piston near the glue injection port, and a toothed ring is fixedly provided inside the glue injection cylinder at one end near the glue injection port. When the piston moves towards the glue injection port and the triangular block slides into contact with the teeth of the toothed ring, the piston continues to move so that the teeth push the piston to rotate, and the direction of piston rotation is the same as the direction of ring rotation.

6. The maintenance and reinforcement equipment for bridge beams and slabs according to claim 3, characterized in that, There are at least three locking levers.

7. The maintenance and reinforcement equipment for bridge beams and slabs according to claim 1, characterized in that, A check valve is installed inside the glue-filling tube.

8. The maintenance and reinforcement equipment for bridge beams and slabs according to claim 1, characterized in that, The injection port is provided with a connecting plate, which can fix the injection port to the crack.

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