Beam-column joint local maintenance device

Abstract

The application provides a beam-column joint local maintenance device, relates to the technical field of beam-column joint maintenance water spraying and recycling, and comprises a supporting part arranged on the surface of a vertical support. The supporting part can slide along the vertical support in the vertical direction to adjust the position by means of a walking part. When the supporting part moves to the required position, the supporting part is clamped on the surface of the vertical support by means of a clamping part to be limited. The upper end of the supporting part is provided with the clamping part. The clamping part can clamp a collecting cloth bag on the surface of the vertical support. The water that cannot be absorbed by the concrete in time is collected during water pouring and maintenance. The rectangular supporting frame structure that can be spliced and adjusted is adopted. The rectangular supporting frame structure is formed by two groups of first supporting parts and two groups of second supporting parts staggered and enclosed. The length of the frame body can be coarsely adjusted through a guide rod and an adjusting track groove. The length can be finely adjusted by cooperating with an end telescopic movable module. The vertical support of various different cross-sectional sizes can be matched. The special device does not need to be customized according to the column specifications. The universal adaptability is high.

Description

Technical Field

[0001] This invention relates to the field of water spraying and recycling technology for beam-column joint maintenance, and particularly to a local maintenance device for beam-column joints. Background Technology

[0002] Beam-column joints are the core load-bearing components of concrete frame structures. After casting, they require regular water curing to ensure stable concrete strength development. During curing, excess water that is not absorbed will drip down the column. Typically, a support device is installed below the joint to collect the dripping curing water and prevent it from overflowing and contaminating the construction site. Currently, water collection supports for beam-column joint curing often use fixed-size ring or rectangular frame structures. These are prefabricated and directly fitted onto the columns to support the water collection bags. This type of structure is simple, low-cost, and a common configuration for routine curing operations.

[0003] However, these fixed-size support frames have poor adaptability and can only accommodate columns with a single cross-section. Since the cross-sectional dimensions of columns on different floors and at different stress points in building construction often vary, multiple sizes of support frames need to be customized to cover all construction needs. This not only increases the procurement and management costs of the equipment but also hinders its use across multiple workstations on site. Some construction sites use temporary wire binding to fix the water collection components. While this can accommodate columns of different sizes, installation is time-consuming and labor-intensive, and the fixation reliability is insufficient, easily leading to loosening and leakage. It cannot simultaneously achieve dimensional adaptability, ease of installation, and fixation stability. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a localized maintenance device for beam-column joints.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a beam-column joint local curing device, including a support part set on the surface of the vertical support. The support part can slide and adjust its position in the vertical direction along the vertical support by means of a traveling part. When the support part moves to the required position, the clamping part clamps the support part on the surface of the vertical support for limitation. The upper end of the support part is provided with a clamping part, wherein the clamping part can clamp a collection cloth bag on the surface of the vertical support. When water curing is carried out on the joint between the transverse support and the vertical support, water that is not absorbed by the concrete in time is collected.

[0006] Preferably, the support consists of two first support parts and two second support parts, wherein the two first support parts and the two second support parts are staggered and connected end to end to form a rectangular frame structure. This rectangular frame structure can be fitted onto the surface of the vertical support and can slide and adjust along the vertical support in the vertical direction.

[0007] Preferably, the first support includes a positioning arm, and the positioning arm has adjustment track grooves near both ends. The second support includes an adjustment arm, and both ends of the adjustment arm are provided with adjustable length movable modules. The movable module ends are equipped with guide rods, and the adjustment arm can be inserted into the adjustment track groove of the positioning arm with the help of the guide rods. The guide rods are threaded with locking nuts near the ends to form an adjustable rectangular frame, which can be adapted to vertical supports of different sizes.

[0008] Preferably, the active module includes an adjustment frame, one end of which is fixed to a guide rod, and the other end of which is fixedly connected to a rectangular rod. Rectangular holes for sliding the rectangular rod are provided at both ends of the adjustment arm. A push-out spring is provided between the rectangular holes and the rectangular rod, wherein the push-out spring always has an elongation tendency to push the rectangular rod outwards from the rectangular holes. A pulling module is provided between the adjustment arm and the adjustment frame, wherein the pulling module can pull the adjustment arm towards the adjustment frame, squeezing the push-out spring to bring the positioning arms of the two first support parts closer together and clamp them onto the surface of the vertical support for fixation.

[0009] Preferably, the pulling module includes multiple sets of sliding plates disposed on the surface of the adjusting arm. Mounting plates are fixedly connected to the surfaces of the sliding plates, and rotating arms are rotatably mounted between the mounting plates. The rotating arms are U-shaped, with their surfaces near the two ends rotating with the mounting plates. A pulling part is rotatably mounted inside the rotating arm. An adjusting groove with a communicating rectangular hole is opened on the surface of the adjusting arm. A hook is fixedly connected to the surface of the rectangular rod, extending through the adjusting groove. The port of the pulling part can be hooked onto the hook surface. The rotating arm can be rotated to pull the rectangular rod inside the rectangular hole, compressing and pushing out the spring to retract the length of the second support part, which is then clamped onto the surface of the upright support by the first support part.

[0010] Preferably, the pulling module includes a fixing strip with an elongated track groove on its surface. The sliding plate can slide along the surface of the elongated track groove. A mounting seat is provided at the end of the elongated track groove. The mounting seat is fixedly mounted on the surface of the adjusting arm. A lead screw is rotatably mounted between the mounting seats. The lead screw can pass through a guide groove on the surface of the fixing strip. A hexagonal block is fixedly connected to the middle of the lead screw. The two ends of the lead screw have opposite thread directions. The hexagonal block can be driven by a wrench to drive the same set of sliding plates to finely adjust the distance between them.

[0011] Preferably, the sliding plate has a slot at its port, a slotting strip inside the slot, and a hanging ring fixedly connected to the surface of the slotting strip. The rectangular rod is slid between the mounting plates by means of the handle at the port of the rotating arm, controlling the edge size of the rectangular frame structure to adapt to different support sizes. At the same time, the hanging ring is used to limit the handle. When it is necessary to release the limit, the slotting strip can be pulled out from the slot to release the hanging ring from locking the handle.

[0012] Preferably, the clamping part includes a fixed frame fixedly installed on the upper end of the positioning arm and the adjusting arm. A rotating frame is rotatably installed on the upper end of the fixed frame. A clamping plate is fixedly connected to the upper end of the rotating frame. The upper end of the clamping plate has a wedge-shaped structure, which can fold the edge of the collection bag. The wedge-shaped clamping plate is inserted into the folded edge of the bag and pressed against the edge of the vertical support to collect dripping water. A horizontal plate is fixedly connected to the surface of the rotating frame. A guide rod is fixedly connected to the bottom of the horizontal plate. A limiting plate is fixedly installed on the side of the fixed frame. An elongated hole is opened through the surface of the limiting plate. The guide rod passes through the elongated hole. A return spring is sleeved on the surface of the guide rod. The elastic force of the return spring can drive the rotating frame to rotate along the upper end of the fixed frame, allowing the clamping plate to clamp the collection bag on the surface of the vertical support.

[0013] Preferably, the positioning arm and the adjusting arm are provided with a walking part inside, wherein the walking part can be controlled to assist the vertical support, the walking part can be retracted when the support is clamped on the surface of the vertical support, and the walking part can slide on the surface of the vertical support when it is necessary to adjust the support to slide along the direction of the vertical support.

[0014] Preferably, the traveling part includes a traveling track installed inside the positioning arm and the adjusting arm. A traveling frame is installed at the end of the traveling track. The surface of the traveling frame is threaded through the guide arm. A rotating block and a tray are fixedly connected to both ends of the guide arm, respectively. A mandrel slides through the inside of the guide arm. A sliding arm is fixedly connected to the end of the mandrel. The sliding arm can slide inside the traveling track. Rollers are rotatably installed at both ends of the sliding arm. A retaining spring is sleeved on the surface of the mandrel. The two ends of the retaining spring contact the tray and the sliding arm, respectively. The extension force of the retaining spring can drive the roller to contact the side of the vertical support. At this time, the support part can slide on the surface of the vertical support with the help of the roller. When it is necessary to retract the traveling part, the rotating block can be rotated to move the tray away from the sliding arm so that the retaining spring no longer pushes the sliding arm and the roller does not contact the vertical support. At this time, the support part can be locked to fix it on the surface of the vertical support.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, a retractable rectangular support frame structure is adopted, which is formed by two sets of first support parts and two sets of second support parts interleaved. The side length of the frame can be coarsely adjusted by guide rods and adjusting track grooves, and the length can be finely adjusted by end telescopic movable modules. It can adapt to a variety of vertical supports with different cross-sectional sizes, without the need to customize exclusive devices according to column specifications. It has strong universality and adaptability. A lever-type pull clamping mechanism is set. By turning the U-shaped rotating arm, the rectangular rod can be pulled to retract, which drives the support frame to retract inward to clamp the column. The operation is labor-saving and the clamping efficiency is high. The matching locking strip and hanging ring structure can quickly lock the clamping state. The clamping is reliable and not easy to loosen. The addition of a reverse screw fine adjustment structure can accurately adjust the clamping distance and clamping force, which can not only ensure that the support frame does not slip, but also avoid excessive clamping force to damage the column surface. It is suitable for concrete columns with different surface conditions.

[0016] 2. In this invention, an elastic wedge-shaped cloth bag clamping part is configured. The wedge-shaped clamping plate is driven by the elastic force of the return spring to press the folded edge of the collection cloth bag. The cloth bag is easy and quick to install and remove. The wedge structure combined with the elastic clamping can ensure that the cloth bag fits tightly with the cylindrical surface, effectively preventing water from leaking from the edge.

[0017] 3. In this invention, a retractable walking mechanism is adopted. When adjusting the support height, rollers extend and roll up and down along the column surface, making the movement smooth and effortless. There is no need for hoisting or erecting auxiliary frames. After positioning, the rollers can be retracted, so that the inner wall of the support frame can directly fit against the column surface for clamping and fixing. The contact friction is large and the fixation is stable, and there will be no slippage or downward movement. It takes into account both the convenience of height adjustment and the reliability of operation fixation. A single person can complete the entire process.

[0018] 4. In this invention, the overall device can realize the fixed-point collection of residual water during the curing of beam-column joints, avoiding the random flow of curing water and pollution of the construction site. The collected residual water can also be recycled and reused, saving construction water. Attached Figure Description

[0019] Figure 1 This invention presents a three-dimensional structural schematic diagram of a localized maintenance device for beam-column joints. Figure 2 The present invention proposes a localized maintenance device for beam-column joints. Figure 1 Partial structural diagram; Figure 3 The present invention proposes a localized maintenance device for beam-column joints. Figure 2 Partial structural diagram; Figure 4 This is a partial schematic diagram of the second support component in the beam-column joint local maintenance device proposed in this invention; Figure 5 This is a partial schematic diagram of the clamping part in the beam-column joint local maintenance device proposed in this invention; Figure 6 This is a partial schematic diagram of the traveling part in the beam-column joint local maintenance device proposed in this invention; Figure 7 This is a partial schematic diagram of the tensioning part in the beam-column joint local maintenance device proposed in this invention; Figure 8 The present invention proposes a localized maintenance device for beam-column joints. Figure 3 Enlarged view of point A; Figure 9 The present invention proposes a localized maintenance device for beam-column joints. Figure 5 Enlarged view of point B.

[0020] Legend: 1. Vertical support; 2. Lateral support; 3. First support section; 31. Positioning arm; 32. Adjusting track groove; 4. Second support section; 41. Adjusting arm; 42. Adjusting frame; 43. Guide rod; 44. Locking nut; 45. Adjusting groove; 46. Fixing strip; 47. Guide groove; 48. Mounting base; 49. Lead screw; 410. Sliding plate; 411. Mounting plate; 412. Rotating arm; 413. Handle; 414. Pulling part; 415 416. Locking slot; 417. Locking strip; 418. Hanging ring; 419. Hexagonal block; 5. Clamping part; 51. Fixing frame; 52. Rotating frame; 53. Clamping plate; 54. Horizontal plate; 55. Limiting plate; 56. Guide rod; 57. Return spring; 6. Collection bag; 77. Walking part; 71. Walking frame; 72. Rotating block; 73. Spindle; 74. Pressing spring; 75. Guide arm; 76. Tray; 77. Sliding arm; 78. Roller; 79. Walking track. Detailed Implementation

[0021] Example 1, as Figure 1-9As shown, the beam-column joint partial curing device is entirely fitted onto the column surface of the vertical support 1. The support, acting as the main load-bearing frame, can slide vertically along the column surface of the vertical support 1 using the traveling part 7 to adjust its height. After the support moves to a preset position below the node where the transverse support 2 intersects with the vertical support 1, it can be clamped and fixed to the surface of the vertical support 1 using a clamping structure. A clamping part 5 is arranged circumferentially at the upper end of the support, which clamps and fixes the upper edge of the collection bag 6 around the column surface of the vertical support 1. Water dripping from the beam-column joint that is not absorbed by the concrete during water curing can be collected in the collection bag 6 below. The support consists of two first support parts 3 and two second support parts 4 spliced ​​together. The two first support parts 3 and two second support parts 4 are staggered end-to-end to form a rectangular frame structure. The entire rectangular frame structure can be fitted onto the outside of the vertical support 1 from the ends and can be vertically adjusted along the column surface of the vertical support 1. The first support part 3 includes a long strip-shaped positioning arm 31. The surface of the positioning arm 31 is provided with adjustment track grooves 32 extending along the arm length direction near both ends. The second support part 4 includes an adjustment arm 41. Both ends of the adjustment arm 41 are provided with a telescopically adjustable movable module. The outer end of the movable module is fixedly installed with a guide rod 43. The adjustment arm 41 can be spliced ​​by inserting the guide rods 43 at both ends into the adjustment track grooves 32 of the positioning arms 31 on both sides. The guide rod 43 is threaded with a locking nut 44 near the outer end. After adjusting the depth of the guide rod 43 inserted into the adjustment track groove 32, tightening the locking nut 44 can fix the splicing size and form a rectangular frame structure with adjustable side length to adapt to the vertical support 1 with different cross-sectional dimensions. The active module includes an adjustment frame 42. The outer end face of the adjustment frame 42 is fixedly connected to the guide rod 43, and the inner end face of the adjustment frame 42 is fixedly connected to a rectangular rod. The two ends of the adjustment arm 41 are respectively provided with rectangular holes for the rectangular rod to be inserted and slid. The adjustment frame 42 can adjust the overall length of the second support part 4 by sliding the rectangular rod along the inside of the rectangular hole. A push-out spring is provided between the inside of the rectangular hole and the inner end of the rectangular rod. The push-out spring always maintains an outward extension trend, which can continuously push the rectangular rod out of the rectangular hole. A pulling module is also provided between the adjustment arm 41 and the adjustment frame 42. The pulling module can overcome the elasticity of the push-out spring and pull and squeeze the adjustment arm 41 towards the adjustment frame 42, so that the positioning arms 31 of the two sides of the first support part 3 move inward and clamp on the surface of the upright support 1 to achieve fixation.The pulling module includes two sets of sliding plates 410 arranged on the surface of the adjusting arm 41. Each set of sliding plates 410 is fixedly connected to a vertically arranged mounting plate 411. A U-shaped rotating arm 412 is rotatably installed between the two mounting plates 411. The two ends of the rotating arm 412 are rotatably connected to the mounting plates 411 on the corresponding sides. A pulling part 414 is rotatably installed on the inner side of the U-shape of the rotating arm 412. An adjusting groove 45 communicating with the inside of the rectangular hole is opened on the surface of the adjusting arm 41. A hook is fixedly connected to the inner end surface of the rectangular rod. The hook extends outward through the adjusting groove 45. The outer end of the pulling part 414 can be hooked on the surface of the hook. By rotating the rotating arm 412 around the mounting plate 411, the rectangular rod can be pulled into the rectangular hole through the pulling part 414, which squeezes out the spring to shorten the overall length of the second support part 4 and drives the first support parts 3 on both sides to retract inward and clamp the surface of the vertical support 1. The pulling module also includes a fixing strip 46 fixedly installed on the surface of the adjusting arm 41. The surface of the fixing strip 46 is provided with a long track groove. The sliding plate 410 can slide smoothly along the length of the long track groove. Mounting seats 48 are fixedly installed at both ends of the long track groove. A lead screw 49 is rotatably installed between the two mounting seats 48. The lead screw 49 can pass through the guide groove 47 on the surface of the fixing strip 46. A hexagonal block 418 is fixedly connected to the middle position of the lead screw 49. The threads at both ends of the lead screw 49 turn in opposite directions. By turning the hexagonal block 418 with a wrench, the lead screw 49 can be driven to rotate, which will drive the two sliding plates 410 in the same group to move in opposite directions along the long track groove to fine adjust the distance between them. The outer end surface of the sliding plate 410 is provided with a recessed locking groove 415. The locking groove 415 can be fitted with a locking strip 416. A hanging ring 417 is fixedly connected to the surface of the locking strip 416. The handle 413 at the end of the rotating arm 412 is turned to rotate around the mounting plate 411. The rectangular rod is pulled to slide in the rectangular hole to adjust the side length of the rectangular frame to adapt to different specifications of the vertical support 1. The hanging ring 417 can be put on the handle 413 to limit and lock the rotating arm 412. When it is necessary to release the limit, simply pull the locking strip 416 out of the locking groove 415 to release the locking limit of the hanging ring 417 on the handle 413.The clamping part 5 includes a fixing frame 51 fixedly installed on the upper ends of the positioning arm 31 and the adjusting arm 41 respectively. A rotating frame 52 is rotatably installed on the upper end of the fixing frame 51. A clamping plate 53 is fixedly connected to the upper end of the rotating frame 52. The upper end of the clamping plate 53 has a wedge-shaped pointed edge structure. When installing the collection bag 6, the edge of the bag can be folded upwards, and the wedge-shaped clamping plate 53 can be inserted into the folded gap of the bag and pressed against the side wall edge of the upright support 1 to fix the collection bag 6 and collect the dripping maintenance water. The side surface of the rotating frame 52 is fixed. A horizontal plate 54 is fixedly connected, and a guide rod 56 is vertically fixedly connected to the bottom of the horizontal plate 54. A limit plate 55 is fixedly installed on the side of the fixed frame 51. An elongated hole is opened through the surface of the limit plate 55. The guide rod 56 is arranged through the elongated hole of the limit plate 55. A return spring 57 is fitted on the rod body of the guide rod 56. The elastic force of the return spring 57 can push the horizontal plate 54 to drive the rotating frame 52 to rotate around the upper end of the fixed frame 51, so that the clamping plate 53 continuously presses the collection cloth bag 6 against the surface of the vertical support 1 by the elastic force. The inner side of the positioning arm 31 and the adjusting arm 41 are both provided with a traveling part 7. The traveling part 7 can control the contact state between the roller and the surface of the vertical support 1. When the support is clamped and fixed to the surface of the vertical support 1, the roller of the traveling part 7 can be retracted to avoid interference clamping. When it is necessary to adjust the height of the support so that it slides up and down along the vertical support 1, the roller of the traveling part 7 can be extended and rolled along the cylindrical surface. The traveling unit 7 includes a traveling track 79 formed inside the positioning arm 31 and the adjusting arm 41. A traveling frame 71 is fixedly installed at the outer end of the traveling track 79. A guide arm 75 is threaded through the center of the traveling frame 71. A rotating block 72 is fixedly connected to the outer end of the guide arm 75, and a tray 76 is fixedly connected to the inner end of the guide arm 75. A spindle 73 slides through the inside of the guide arm 75, and a sliding arm 77 is fixedly connected to the inner end of the spindle 73. The sliding arm 77 can slide and extend along the inside of the traveling track 79. Rollers 78 are rotatably installed at both ends of the sliding arm 77. A retaining spring 74 is fitted onto the shaft of the spindle 73. The two ends of 74 abut against the inner side of the tray 76 and the outer side of the sliding arm 77, respectively. The elastic force of the extended spring 74 can push the sliding arm 77 to extend inward, so that the roller 78 is tightly against the side of the upright support 1. At this time, the support part can slide smoothly along the surface of the upright support 1 through the roller 78. When it is necessary to retract the traveling part 7, rotate the rotating block 72 to drive the guide arm 75 to rotate outward, so that the tray 76 is away from the sliding arm 77 to release the compression support of the spring 74. The spring 74 no longer pushes the sliding arm 77 to extend, and the roller 78 is then removed from the surface of the upright support 1. At this time, the support part can be locked and fixed to the surface of the upright support 1.

[0022] The working principle is as follows: First, adjust the overall size of the support frame according to the cross-sectional dimensions of the vertical support 1. Loosen the locking nut 44 and adjust the depth of the guide rod 43 inserted into the adjusting track groove 32. Initially adjust the side length of the rectangular frame to be slightly larger than the cross-section of the vertical support 1. Then, insert the entire device into the column from the bottom of the vertical support 1. Rotate the rotating block 72 to drive the guide arm 75 to feed inward, push the tray 76 to compress the clamping spring 74, and the elastic force of the clamping spring 74 pushes the sliding arm 77 to extend inward along the travel track 79, so that the rollers 78 on each side are tightly pressed against the column surface of the vertical support 1. At this time, the support part can slide vertically upward along the vertical support 1 through the rollers 78 and move to the preset maintenance position below the beam-column joint. After reaching the designated height, operate the handles 413 of the rotating arms 412 on both sides, causing the pulling part 414 to pull the rectangular rod into the rectangular hole, compressing the spring to shorten the length of the second support part 4, and causing the positioning arms 31 on both sides to retract inward, so that the entire support frame is clamped on the column surface of the vertical support 1. After clamping in place, insert the locking strip 416 into the locking groove 415, so that the hanging ring 417 covers the handle 413 to complete the locking and maintain the clamped and fixed state. Then rotate the rotating block 72 in the opposite direction to retract the roller 78, so that the support part is firmly fixed on the column surface to prevent slippage. Fold the upper edge of the collection bag 6 upward along the perimeter of the column, and open the clamps 53 on each side in turn. Insert the folded edge of the bag into the space between the clamps 53 and the column surface. After releasing the clamps 53, the return spring 57 pushes the rotating frame 52 to rotate, and the wedge-shaped clamps 53 press the edge of the bag against the surface of the vertical support 1, completing the installation and fixing of the collection bag 6. When spraying water to cure beam-column joints, excess water that is not absorbed by the concrete drips down the beam-column surface and is collected in the collection bag 6 below, preventing the curing water from flowing freely and polluting the construction environment. The collected water can also be reused to save construction water. When it is necessary to adjust the curing height or remove the device, first remove the collection bag 6, pull out the locking strip 416 to release the locking ring 417 on the handle 413, push out the spring to push the rectangular rod outward, causing the support frame to loosen the clamp on the opposing support 1, and then extend the roller 78 to slide down the column to remove the device. When it is necessary to fine-tune the clamping force, the wrench can be used to turn the hexagonal block 418 to drive the screw 49 to rotate, and the distance between the two sets of sliding plates 410 can be finely adjusted to adapt to different clamping requirements.

[0023] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any other way. Any person skilled in the art may utilize the disclosed technical content to make changes or modifications to create equivalent embodiments applicable to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, still fall within the protection scope of the present invention. In the description of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood through specific circumstances.

Claims

1. A localized maintenance device for beam-column joints, comprising a support portion disposed on the surface of the vertical support (1), characterized in that: The support part can slide and adjust its position in the vertical direction along the vertical support (1) with the help of the walking part (7). When the support part moves to the required position, the clamping part (5) is used to clamp the support part on the surface of the vertical support (1) for limiting. The upper end of the support part is provided with a clamping part (5), which can clamp the collection cloth bag (6) on the surface of the vertical support (1). When watering is carried out on the node between the transverse support (2) and the vertical support (1), the water that is not absorbed by the concrete in time can be collected.

2. The beam-column joint local maintenance device according to claim 1, characterized in that: The support consists of two first support parts (3) and two second support parts (4), wherein the two first support parts (3) and the two second support parts (4) are connected end to end to form a rectangular frame structure. The rectangular frame structure can be fitted onto the surface of the vertical support (1) and can slide and adjust along the vertical support (1) in the vertical direction.

3. The beam-column joint local maintenance device according to claim 2, characterized in that: The first support part (3) includes a positioning arm (31), and the positioning arm (31) has an adjustment track groove (32) near both ends. The second support part (4) includes an adjustment arm (41), and both ends of the adjustment arm (41) are provided with adjustable length movable modules. The movable module ends are equipped with guide rods (43). The adjustment arm (41) can be inserted into the adjustment track groove (32) of the positioning arm (31) by means of the guide rods (43). The guide rods (43) are threaded with locking nuts (44) near the ends to form a rectangular frame that can be adjusted and lengthened. The rectangular frame can be adapted to vertical supports (1) of different sizes.

4. The beam-column joint local maintenance device according to claim 3, characterized in that: The active module includes an adjustment frame (42), one end of which is fixed to a guide rod (43), and the other end of which is fixedly connected to a rectangular rod. The two ends of the adjustment arm (41) are provided with rectangular holes for the rectangular rod to slide through. A push-out spring is provided between the rectangular hole and the rectangular rod. The push-out spring always has a tendency to extend and can push the rectangular rod outward toward the rectangular hole. A pull module is provided between the adjustment arm (41) and the adjustment frame (42). The pull module can pull the adjustment arm (41) toward the adjustment frame (42) and squeeze the push-out spring so that the positioning arms (31) of the two first support parts (3) are close to each other and clamped on the surface of the upright support (1) for fixation.

5. The beam-column joint local maintenance device according to claim 4, characterized in that: The pulling module includes multiple sets of sliding plates (410) disposed on the surface of the adjusting arm (41). The surface of the sliding plate (410) is fixedly connected to the mounting plate (411). A rotating arm (412) is rotatably mounted between the mounting plates (411). The rotating arm (412) is U-shaped. The position of the rotating arm (412) near the two ends rotates with the mounting plate (411). A pulling part (414) is rotatably mounted inside the rotating arm (412). An adjusting groove (45) communicating with a rectangular hole is opened on the surface of the adjusting arm (41). A hook is fixedly connected to the surface of the rectangular rod. The hook extends through the adjusting groove (45). The port of the pulling part (414) can be hung on the surface of the hook. The rotating arm (412) can be rotated to pull the rectangular rod inside the rectangular hole by means of the pulling part (414) to squeeze out the spring-contracted second support part (4). The length of the second support part (4) is clamped on the surface of the vertical support (1) by means of the first support part (3).

6. The beam-column joint local maintenance device according to claim 5, characterized in that: The pulling module includes a fixing strip (46), the surface of which is provided with a long track groove. The sliding plate (410) can slide along the surface of the long track groove. The port of the long track groove is provided with a mounting seat (48). The mounting seat (48) is fixedly installed on the surface of the adjusting arm (41). A lead screw (49) is rotatably installed between the mounting seats (48). The lead screw (49) can pass through the guide groove (47) on the surface of the fixing strip (46). A hexagonal block (418) is fixedly connected to the middle of the lead screw (49). The two ends of the lead screw (49) have opposite thread directions. The hexagonal block (418) can be driven by a wrench to drive the same set of sliding plates (410) to finely adjust the distance between them.

7. The beam-column joint local maintenance device according to claim 6, characterized in that: The sliding plate (410) has a slot (415) at its port. A slot strip (416) is inserted inside the slot (415). A hanging ring (417) is fixedly connected to the surface of the slot strip (416). By using the handle (413) at the port of the rotating arm (412), the rectangular rod is rotated between the mounting plates (411) and slid in the rectangular hole to control the edge size of the rectangular frame structure to adapt to different upright support (1) sizes. At the same time, the hanging ring (417) is used to limit the handle (413). When it is necessary to release the limit, the slot strip (416) can be pulled out from the slot (415) to release the hanging ring (417) from locking the handle (413).

8. The beam-column joint local maintenance device according to claim 1, characterized in that: The clamping part (5) includes a fixed frame (51) fixedly installed on the upper end of the positioning arm (31) and the adjusting arm (41). A rotating frame (52) is rotatably installed on the upper end of the fixed frame (51). A clamping plate (53) is fixedly connected to the upper end of the rotating frame (52). The upper end of the clamping plate (53) is a wedge-shaped structure, which can fold the edge of the collection bag (6). The wedge-shaped clamping plate (53) is inserted into the folded edge of the bag and pressed against the edge of the upright support (1) to collect the dripping water. The surface of the rotating frame (52) is fixedly connected to... There is a horizontal plate (54), and a guide rod (56) is fixedly connected to the bottom of the horizontal plate (54). A limiting plate (55) is fixedly installed on the side of the fixed frame (51). A long hole is opened through the surface of the limiting plate (55). The guide rod (56) passes through the long hole. A return spring (57) is sleeved on the surface of the guide rod (56). The elastic force of the extension of the return spring (57) can drive the rotating frame (52) to rotate along the upper end of the fixed frame (51), and the elastic force of the clamping plate (53) can clamp the collection bag (6) on the surface of the upright support (1).

9. The beam-column joint local maintenance device according to claim 1, characterized in that: The positioning arm (31) and the adjusting arm (41) are provided with a walking part (7), which can be controlled to assist the vertical support (1). When the support is clamped on the surface of the vertical support (1), the walking part (7) can be retracted. When it is necessary to adjust the support so that it slides along the vertical support (1), the walking part (7) can slide on the surface of the vertical support (1).

10. The beam-column joint local maintenance device according to claim 9, characterized in that: The traveling part (7) includes a traveling track (79) installed inside the positioning arm (31) and the adjusting arm (41). A traveling frame (71) is installed at the port of the traveling track (79). The surface of the traveling frame (71) is threaded through the guide arm (75). A rotating block (72) and a tray (76) are fixedly connected to both ends of the guide arm (75). The guide arm (75) slides through the spindle (73). A sliding arm (77) is fixedly connected to the port of the spindle (73). The sliding arm (77) can slide inside the traveling track (79). Rollers (78) are rotatably installed at both ends of the sliding arm (77). The surface of the spindle (73) is fitted with a retaining spring (74). The two ends of the retaining spring (74) are in contact with the tray (76) and the sliding arm (77) respectively. The extension force of the retaining spring (74) can drive the roller (78) to contact the side of the vertical support (1). At this time, the support part can slide on the surface of the vertical support (1) with the help of the roller (78). When it is necessary to retract the walking part (7), the rotating block (72) can be used to move the tray (76) away from the sliding arm (77) so that the retaining spring (74) no longer pushes the sliding arm (77) and the roller (78) does not contact the vertical support (1). At this time, the support part can be locked to fix it on the surface of the vertical support (1).

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