Cover beam construction device and construction method

Abstract

The invention relates to the technical field of bridge construction, and particularly discloses a capping beam construction device and method.The construction device comprises a hoisting mechanism and a hoisting piece, the hoisting mechanism hoists the hoisting piece to move, and the hoisting piece is provided with two clamping mechanisms and an adjusting mechanism for adjusting the relative distance between the two clamping mechanisms; each clamping mechanism comprises two clamping pieces, a positioning piece and a positioning assembly, the upper ends of the two clamping pieces are in sliding fit with the hoisting piece, the two clamping mechanisms slide downwards in the relatively close direction, one end of the positioning piece is in sliding fit with the lower ends of the two clamping pieces at the same time and is used for abutting against the inclined face of the bottom of the bent cap, and the positioning assembly is used for positioning the bent cap. The other end of the positioning piece is used for movably abutting against the pier column, and the positioning assembly is used for adjusting the relative angle between the positioning piece and the clamping piece; the construction method comprises the steps of lifting of the cover beam, butt joint of the cover beam and the pier column and grouting. According to the cover beam construction device and the construction method, the construction efficiency of butt joint of the cover beam and the pier column is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction, and in particular to a cap beam construction device and a construction method. Background Art

[0002] During the bridge construction process, in order to shorten the construction period and reduce the amount of on-site work, some construction sites will choose to prefabricate the cap beam in the factory and then connect the prefabricated cap beam with the pier column. In order to ensure the construction quality, the prefabricated cap beam needs to be accurately connected with the pier column.

[0003] The patent document with the authorization announcement number CN117185134B discloses a prefabricated cap beam hoisting device and a hoisting method thereof, including a hoisting rail, a hoisting rope and a hook, wherein the hoisting rope is connected to the lower surface of the hoisting rail, and the hook is connected to the end of the hoisting rope away from the hoisting rail. A rolling groove is provided in the hoisting rail, and a retention groove is provided on the bottom wall of the rolling groove. A gravity ball is provided in the rolling groove, and an installation groove is provided at the bottom of the retention groove. An electric contact assembly is provided in the installation groove. A battery is provided in the hoisting rail, and a warning light is provided on the hoisting rail. The battery is electrically connected to the electric contact assembly, and the electric contact assembly is electrically connected to the warning light. The gravity ball, the electric contact assembly and the warning light cooperate with each other, and the staff can judge whether the hoisting rail is in a horizontal state by observing the warning light, so as to judge whether the prefabricated cap beam is in a horizontal state, thereby improving the efficiency of the hoisting equipment in adjusting the level of the prefabricated cap beam, thereby improving the assembly efficiency between the prefabricated cap beam and the pier column.

[0004] The cap beam lifting device provided in the above patent document is convenient for the staff to quickly and intuitively judge whether the prefabricated cap beam is in a horizontal state, and then quickly adjust the horizontality of the prefabricated cap beam. During construction, embedded steel bars are exposed on the top of the pier, and holes corresponding to the embedded steel bars are reserved at the lower end of the prefabricated cap beam. When the cap beam is docked with the pier, in addition to adjusting the horizontality of the prefabricated cap beam, it is also necessary to adjust the holes on the prefabricated cap beam to align with the steel bars on the pier. If there is a deviation between the holes and the steel bars, especially when there is a small deviation between the holes and the steel bars, it is difficult to accurately adjust through the lifting equipment, and the construction personnel are also required to knock the steel bars at the pier to make the steel bars smoothly enter the holes of the cap beam. Because it involves high-altitude operations, it affects the efficiency of the cap beam construction and also causes certain risks in the docking operation of the cap beam and the pier. Summary of the invention

[0005] The present invention provides a cap beam construction device and a construction method, aiming to solve the problem that when the construction device in the related technology lifts the cap beam and connects it with the pier, it is difficult to achieve accurate positioning of the holes on the cap beam and the steel bars on the pier, which affects the efficiency of the cap beam construction and increases the risk of construction.

[0006] The cap beam construction device of the present invention includes a lifting mechanism and a lifting member. The lifting mechanism lifts the lifting member to move. The lifting member is provided with two groups of clamping mechanisms and an adjusting mechanism for adjusting the relative spacing between the two groups of clamping mechanisms. The clamping mechanism includes a clamping member, a positioning member and a positioning assembly. There are two clamping members. The upper ends of the two clamping members are slidably matched with the lifting member, and the two groups of clamping mechanisms slide downward in a relatively close direction. One end of the positioning member is slidably matched with the lower ends of the two clamping members and abuts against the inclined surface of the bottom of the cap beam. The other end of the positioning member is used for movably abutting against the pier. The positioning assembly is used to adjust the relative angle between the positioning member and the clamping member.

[0007] The beneficial effects are: reducing the operational difficulty of the construction of the docking between the cap beam and the pier column, and improving the construction efficiency. The two clamping mechanisms flexibly clamp the cap beam, and the adjustment mechanism can quickly adjust the position and angle of the clamping mechanism, so as to realize the rapid positioning and installation of the cap beam by the clamping mechanism. The two clamping mechanisms cooperate to stably fix the cap beam, and can also ensure the consistency of the fixed position of the cap beam by the two clamping mechanisms, thereby improving the placement accuracy of the subsequent cap beam. The two clamping mechanisms can be applied to cap beams of different sizes and shapes, thereby improving the flexibility and efficiency of construction. In addition, the cooperation between the clamping member and the positioning member also provides stable clamping and support for the cap beam, reducing the safety hazards such as shaking, offset or falling of the cap beam during the installation process, and the positioning member can quickly realize the positioning between the pier column and the cap beam, improving the positioning accuracy while ensuring the construction efficiency, and in the docking process, it eliminates the operation of manually adjusting the docking between the steel bars and the holes, thereby reducing the construction difficulty and improving the safety of the construction.

[0008] Preferably, the lifting member is provided with two guide grooves, which are inclined downward in a relatively close direction, and the upper ends of the two clamping members of the same group of the clamping mechanism are connected by a cross bar, which is slidably matched with the guide grooves respectively.

[0009] Preferably, the positioning member is fixed with a rotating shaft, the rotating shaft abuts against the inclined surface at the bottom of the cap beam, and the rotating shaft is slidingly matched and elastically connected with the lower ends of the two clamping members at the same time. The positioning assembly includes a gear and a rack, the gear is fixed to the rotating shaft, the rack is fixed to the lower end of the clamping member, and the gear is meshed with the rack.

[0010] The beneficial effects are: the flexibility and adaptability of the clamping mechanism are enhanced. The positioning assembly adopts a meshing structure of a gear and a rack. The gear is fixed to the rotating shaft, and the rack is fixed to the lower end of the clamping member. Through this design, the relative angle between the positioning member and the clamping member can be accurately adjusted to adapt to the bottom slope of the cap beam with different shapes and inclination angles. This flexible adjustment capability enables the device to better fit the shape of the cap beam, further enhancing the stability and reliability of the clamping. The inclined design of the guide groove combined with the adjustment function of the gear rack enables the device to adapt to various complex construction conditions, such as piers and cap beams of different heights and different inclination angles. This high degree of adaptability reduces the equipment adjustment time caused by changes in construction conditions and improves construction efficiency.

[0011] Preferably, a limiting member is also fixed on the lifting member, and the limiting member is located on the upper side of the guide groove. The inclination of the limiting member is consistent with the guide groove. A plurality of limiting holes are arranged at intervals on the limiting member. The clamping member is slidably connected to the limiting rod, and the upper end of the limiting rod is movably hooked with the limiting hole, and the lower end of the limiting rod is rotatably sleeved on the rotating shaft.

[0012] The beneficial effects are: improving the safety and reliability of construction, the limiter is located on the upper side of the guide groove, and the inclination is consistent with the guide groove, so that when the clamp slides along the guide groove, the limiter can further guide the movement direction of the clamp to prevent it from deflecting or shaking during the sliding process, thereby improving the positioning accuracy and stability of the clamp, the cooperation of the limiter hole and the limiter rod can limit the sliding range of the clamp, thereby effectively preventing construction accidents caused by loss of control of the clamp and improving the safety of construction.

[0013] Preferably, the end of the positioning member opposite to the pier is in a "C" shape, and two fixing blocks are oppositely provided on the "C"-shaped end of the positioning member, and the fixing blocks are movably abutted against the pier.

[0014] The beneficial effects are: the positioning accuracy of the positioning piece is improved, the "C"-shaped end of the positioning piece has a wider contact area with the pier, and the positioning piece can match the shape of the pier more accurately, thereby achieving accurate positioning of the cap beam. This precise positioning operation can effectively reduce the deviation during the installation of the cap beam and improve the construction quality. The stable contact and reliable support between the positioning piece and the pier can ensure that the cap beam remains stable during the installation process, avoid construction accidents caused by inaccurate positioning or unstable support, and improve the reliability of construction.

[0015] Preferably, the adjustment mechanism includes a movable groove, a push block, a telescopic member and a pulling assembly, the movable groove is arranged on the lifting member, the guide groove is connected to the movable groove, there are two push blocks, the two push blocks are connected to the movable groove through an elastic member and slideably cooperate with the movable groove, the push block is movably abutted against the clamping member, one end of the telescopic member is hooked and connected to the lifting mechanism, the other end of the telescopic member is fixed relative to the movable groove, the two push blocks are connected by a pulling rope, and the pulling assembly is movably hooked with the pulling rope.

[0016] Preferably, the pulling assembly includes an adjusting member, an adjusting portion and a hooking portion, the adjusting member is arranged on the telescopic member, the hooking portion is slidably matched with and elastically connected to the adjusting member along a direction parallel to the width of the movable groove, the adjusting portion is slidably matched with and elastically connected to the hooking portion along a direction parallel to the length of the movable groove, and when the adjusting portion slides relative to the hooking portion, the length of the hooking portion extending out of the adjusting member is changed, and the hooking portion and the pulling rope are movable relative to each other in the longitudinal direction.

[0017] Preferably, an adjustment groove 1, an adjustment groove 2 and an adjustment groove 3 are longitudinally opened on the side wall of the movable groove, and the bottoms of the adjustment groove 1, the adjustment groove 2 and the adjustment groove 3 are connected. The adjustment groove 2 is located between the adjustment groove 1 and the adjustment groove 3, and the depth of the adjustment groove 2 is smaller than that of the adjustment groove 1 and the adjustment groove 2. The depth of the lower end of the adjustment member 2 increases from top to bottom and forms an inclined guide portion. A protrusion 1 is provided at the connection between the adjustment groove 3 and the adjustment groove 2, and the depth of the adjustment groove 3 at one point of the protrusion is consistent with that of the adjustment groove 2. A protrusion 2 is also provided at the lower end of the adjustment groove 3, and the height of the protrusion 2 is greater than the maximum height of the guide portion.

[0018] Preferably, the lower end surface of the second protrusion is in the shape of a slope that is inclined from top to bottom close to the inside of the third adjustment groove.

[0019] The beneficial effects are: the distance between the two clamping mechanisms can be flexibly adjusted. Through the telescopic action of the telescopic member and the adjustment function of the pulling assembly, the relative position of the two push blocks can be accurately controlled, thereby realizing the flexible adjustment of the distance between the clamping members. This design can adapt to cap beams of different sizes, ensure that the clamping members can be accurately clamped on both sides of the cap beam, and improve the adaptability and flexibility of construction. The push block is connected to the movable groove through an elastic member. This elastic connection method can provide a certain buffer during the clamping process to avoid damage to the cap beam due to excessive clamping force. At the same time, it can also adapt to the slight unevenness of the cap beam surface to ensure the stability of clamping.

[0020] A cap beam construction method using the cap beam construction device provided by the present invention, the specific steps are as follows: S1. Lift the cap beam. Use the lifting mechanism to lift the lifting parts and move them to the upper side of the cap beam to be connected. The adjustment mechanism drives the two sets of clamping mechanisms to move relatively close. The two sets of clamping mechanisms abut against the two inclined ends of the cap beam to fix the cap beam. S2. The cap beam is butted against the pier column. The lifting mechanism lifts the cap beam to the upper side of the pier column, and locates the cap beam through two sets of positioning pieces, and then lowers the cap beam so that the steel bars on the pier column are inserted into the holes of the cap beam. S3. Grouting: Grouting is performed on the holes on the cap beam. After the grouting is completed, the cap beam is lifted for a short distance by the lifting mechanism and the lifting parts and then lowered again, thereby completing the splicing of the cap beam and the pier column.

[0021] The beneficial effects are: reducing the operational difficulty of the butt joint construction between the cap beam and the pier column and improving the construction efficiency. The two clamping mechanisms flexibly clamp the cap beam, and the position and angle of the clamping mechanisms can be quickly adjusted in conjunction with the adjustment mechanism, thereby realizing the rapid positioning and installation of the cap beam by the clamping mechanism. The two clamping mechanisms cooperate to achieve stable fixation of the cap beam while ensuring the consistency of the fixed position of the cap beam by the two clamping mechanisms, thereby improving the placement accuracy of the subsequent cap beam and ensuring the construction efficiency. In addition, during the butt joint process, the operation of manually adjusting the connection between the steel bars and the holes is eliminated, thereby reducing the construction difficulty and improving the construction safety.

[0022] The beneficial effects of the present invention are: (1) Reduce the operational difficulty of the construction of the connection between the cap beam and the pier column, and improve the construction efficiency. The two clamping mechanisms can flexibly clamp the cap beam, and the adjustment mechanism can quickly adjust the position and angle of the clamping mechanism, so as to realize the rapid positioning and installation of the cap beam by the clamping mechanism. The two clamping mechanisms can not only stabilize and fix the cap beam, but also ensure the consistency of the fixed position of the cap beam by the two clamping mechanisms, thus improving the placement accuracy of the subsequent cap beam. The two clamping mechanisms can be applied to cap beams of different sizes and shapes, thus improving the flexibility and efficiency of construction. In addition, the cooperation between the clamping parts and the positioning parts also provides stable clamping and support for the cap beam, reducing the safety hazards such as shaking, offset or falling of the cap beam during the installation process. The positioning parts can quickly realize the positioning between the pier column and the cap beam, improving the positioning accuracy while ensuring the construction efficiency. In addition, during the connection process, the operation of manually adjusting the connection between the steel bars and the holes is eliminated, thus reducing the construction difficulty and improving the safety of the construction.

[0023] (2) Improve the positioning accuracy of the positioning piece. The "C"-shaped end of the positioning piece has a wider contact area with the pier column, and the positioning piece can match the shape of the pier column more accurately, thereby achieving accurate positioning of the cap beam. This precise positioning operation can effectively reduce the deviation during the installation of the cap beam and improve the construction quality. The stable contact and reliable support between the positioning piece and the pier column can ensure that the cap beam remains stable during the installation process, avoiding construction accidents caused by inaccurate positioning or unstable support, and improving the reliability of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a state diagram when the clamping mechanism in the present invention does not fix the cap beam.

[0026] Figure 3 It is a schematic diagram of the state when the cap beam and the pier column are butt-jointed in the present invention.

[0027] Figure 4 It is a schematic diagram of the structure inside the lifting component of the present invention.

[0028] Figure 5 It is a schematic structural diagram of the adjusting slot 1, the adjusting slot 2 and the adjusting slot 3 in the present invention.

[0029] Figure 6 It is a structural schematic diagram of the connection between the adjusting portion, the hooking portion and the adjusting member in the present invention.

[0030] Figure 7 It is a structural schematic diagram of the clamping mechanism in the present invention.

[0031] Figure 8 It is a schematic structural diagram of the connection between the clamping member and the positioning assembly in the present invention.

[0032] Reference numerals: 1. Lifting mechanism; 2. Lifting parts; 21. Movable groove; 22. Guide groove; 221. Limiting part; 23. Push block; 231. Pull rope; 24. Connecting block; 25. Adjusting groove one; 26. Adjusting groove two; 261. Guide part; 27. Adjusting groove three; 271. Protruding part one; 272. Protruding part two; 28. Telescopic part; 29. ​​Adjusting part; 291. Hooking part; 292. Adjusting part; 3. Clamping part; 31. Positioning part; 32. Rotating shaft; 321. Gear; 322. Rack; 323. Limiting rod; 33. Fixed block; 34. Cross bar; 4. Cap beam; 5. Pier column. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figures 1 to 3 As shown, the cap beam construction device of the present invention comprises a hoisting mechanism 1, a hoisting member 2, and a clamping mechanism and an adjusting mechanism arranged on the hoisting member 2. The clamping mechanism has two groups, and the adjusting mechanism is used to adjust the relative spacing between the two groups of clamping mechanisms. The construction device provided in this embodiment is used to hoist and dock the "U"-shaped cap beam 4. For details, refer to Figure 3 The bottom of this type of cap beam 4 is inclined at both ends of its length, and the inclined portion is inclined upward near the end of the cap beam 4, and two sets of clamping mechanisms movably clamp the two inclined sides of the bottom of the cap beam 4 respectively.

[0035] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, the clamping mechanism includes a clamping member 3, a positioning member 31 and a positioning assembly. There are two clamping members 3, and the two clamping members 3 slide against the front and rear end surfaces of the cap beam 4 respectively. Two guide grooves 22 are provided on the lifting member 2, and the two guide grooves 22 are inclined downward in a relatively close direction, and the inclination angle of the guide groove 22 is consistent with the inclination angle of the bottom inclined surface end of the cap beam 4. The upper ends of the two clamping members 3 of the same group of clamping assemblies are connected by a cross bar 34, and the two cross bars 34 are respectively slidably matched with the two guide grooves 22. The positioning member 31 is also connected to the lower ends of the two clamping members 3 of the same group of clamping mechanisms. One end of the positioning member 31 is slidably matched with the lower end of the clamping member 3, and the other end of the positioning member 31 is used for active abutment with the pier 5. The positioning assembly is used to adjust the relative angle between the positioning member 31 and the clamping member 3.

[0036] The positioning member 31 is fixed with a rotating shaft 32, which is in contact with the inclined surface at the bottom of the cap beam 4. A slide groove is provided at the lower end of the clamping member 3. The rotating shaft 32 extends into the two slide grooves at the same time and slides with the slide grooves. The rotating shaft 32 is also elastically connected to the slide grooves. The rotating shaft 32 can be connected to the slide grooves through a spring. When the rotating shaft 32 slides downward relative to the slide groove, the spring is stretched and the spring is charged. A set of clamping mechanisms includes two sets of positioning components, which are respectively located at the two ends of the rotating shaft 32. The positioning components include a gear 321 and a rack 322. The gear 321 is fixed to the end of the rotating shaft 32, and the rack 322 is fixed to the lower end of the clamping member 3. The gear 321 is meshed with the rack 322. When the two groups of clamping components are relatively close to each other, the rotating shaft 32 is squeezed by the inclined surface at the bottom of the cap beam 4 and gradually slides downward along the slide groove. The gear 321 slides synchronously with the rotating shaft 32 and rotates under the meshing action between it and the gear 321. When the gear 321 rotates, it drives the rotating shaft 32 to rotate synchronously. The positioning member 31 rotates synchronously with the rotating shaft 32 as a whole. The two groups of positioning members 31 rotate in the direction of approaching each other. For specific state changes, refer to Figure 2 and Figure 3 content.

[0037] When lifting the workpiece, the lifting mechanism 1 lifts the lifting member 2 and moves it to the upper side of the cap beam 4. Figure 2 As shown, in the initial state, the clamping members 3 of the two clamping mechanisms are respectively located at the outermost sides of the guide grooves 22, and then the two clamping mechanisms are relatively close to each other by the adjusting mechanism, and the positioning members 31 of the two clamping mechanisms gradually contact and abut against the inclined surface at the bottom of the cap beam 4, completing the fixing operation of the positioning mechanism and the cap beam 4, as shown in FIG. Figure 3 As shown, the rotating shaft 32 on the positioning member 31 is squeezed by the cap beam 4 and moves downward and rotates relative to the clamping member 3. After the lifting member 2 and the cap beam 4 are lifted by the lifting mechanism 1 to the upper side of the pier 5, the positioning member 31 is gradually approached to the pier 5. When the two positioning members 31 are in contact with the pier 5, it indicates that the positioning of the cap beam 4 and the pier 5 is completed. After that, the cap beam 4 is lowered to complete the positioning of the cap beam 4 and the pier 5.

[0038] To ensure the positioning effect of the positioning member 31, the end of the positioning member 31 opposite to the pier 5 is in a "C" shape, and two fixing blocks 33 are relatively arranged on the "C"-shaped end of the positioning member 31. The fixing blocks 33 can be adjusted with the positioning member 31 by bolts, so that the distance between the two fixing blocks 33 can be adjusted according to the size of different piers 5. The fixing blocks 33 are movably abutted against the pier 5. The "C"-shaped end of the positioning member 31 is positioned through three points to achieve precise axial positioning of the cap beam 4 and the pier 5, thereby improving the relative position accuracy of the cap beam 4 and the pier 5 before lowering.

[0039] In order to ensure the stability of the relative position of the clamping member 3 and the lifting member 2 when the clamping mechanism fixes the cap beam 4, and to prevent the clamping member 3 from sliding relative to the lifting member 2 and affecting the fixing strength of the clamping mechanism, a limiting member 221 is also fixed on the lifting member 2. The limiting member 221 is located on the upper side of the guide groove 22. The inclination of the limiting member 221 is consistent with the guide groove 22. A plurality of limiting holes are arranged at intervals on the limiting member 221. The clamping member 3 is slidably connected to a limiting rod 323. The limiting rod 323 slides along the length direction of the clamping member 3. The upper end of the limiting rod 323 is movably hooked with the limiting hole. A connecting ring is fixed to the lower end of the limiting rod 323. The connecting ring is rotatably sleeved on the rotating shaft 32. When the lifting member 2 lifts the cap beam 4 through the clamping mechanism, when the cap beam 4 squeezes the rotating shaft 32 to slide relative to the clamping member 3, the rotating shaft 32 drives the limiting rod 323 to slide relative to the clamping member 3, and makes the upper end of the limiting rod 323 hook with the limiting hole on the limiting member 221. After the limiting rod 323 is inserted into the corresponding limiting hole, the relative position of the clamping member 3 and the lifting member 2 is limited to ensure the stability of the position of the clamping member 3 during the lifting process, thereby ensuring the stability of the clamping mechanism to fix the cap beam 4.

[0040] After the cap beam 4 is put in place, the lifting member 2 fits with the upper end surface of the cap beam 4, and the inclined end of the cap beam 4 no longer squeezes the shaft 32. The shaft 32 is reset under the action of elastic force, and the limiting rod 323 slides upward with the shaft 32 and disengages from the limiting hole.

[0041] like Figures 4 to 6 As shown, the adjustment mechanism includes a movable groove 21, a push block 23, a telescopic member 28 and a pulling assembly. The movable groove 21 is provided on the lifting member 2, the guide groove 22 is connected to the movable groove 21, there are two push blocks 23, both of which are slidably matched with the movable groove 21, and the two push blocks 23 are connected to the movable groove 21 through elastic members, which can be springs or elastic telescopic rods. A connecting block 24 is fixed in the middle of the movable groove 21, and the two push blocks 23 are fixed to the connecting block 24 through an elastic member. The two push blocks 23 are located on the inner side of the two clamping members 3, and the push blocks 23 are movably abutted against the clamping members 3. When the two elastic members are naturally stretched, the two push blocks 23 are located at both ends of the movable groove 21 and push the two clamping members 3 to move to the two ends of the lifting member 2. The telescopic member 28 can be a cylinder, one end of the telescopic member 28 is hooked and connected to the lifting mechanism 1, the other end of the telescopic member 28 is fixed relative to the movable groove 21, and the lower end of the telescopic member 28 is directly fixed to the connecting block 24. The two push blocks 23 are connected by a pulling rope 231, and the pulling component is movably hooked with the pulling rope 231 as the telescopic member 28 is extended and retracted. When the pulling component pulls the pulling rope 231 upward, the two push blocks 23 are driven to slide relatively close to each other in the guide groove 22, and the two clamping members 3 slide inward along the downwardly inclined guide groove 22 under the action of their gravity.

[0042] The pulling assembly includes an adjusting member 29, an adjusting portion 292 and a hooking portion 291. The adjusting member 29 is provided on the telescopic member 28 and moves longitudinally with the telescopic movement of the telescopic member 28. The hooking portion 291 is slidably matched with the adjusting member 29 and elastically connected. The sliding direction of the hooking portion 291 is parallel to the width direction of the movable groove 21. The hooking portion 291 can be connected to the adjusting member 29 through a spring. When the spring is naturally stretched, the hooking portion 291 avoids the pulling rope 231 in the longitudinal direction. When the spring is in a stretched state, the hooking portion 291 is opposite to the pulling rope 231 in the longitudinal direction. The adjusting portion 292 is elastically connected to the hook portion 291 and slidably cooperates with it. The sliding direction of the adjusting portion 292 is parallel to the width direction of the movable groove 21. The side wall of the adjusting groove is longitudinally provided with an adjusting groove 1 25, an adjusting groove 26 and an adjusting groove 3 27. The adjusting portion 292 slidably cooperates with the adjusting groove 1 25, the adjusting groove 26 and the adjusting groove 3 27, and when sliding in the adjusting groove 1 25, the adjusting groove 26 and the adjusting groove 3 27, the hook portion 291 is pushed to slide relative to the adjusting member 29.

[0043] like Figure 5 As shown, the bottoms of the adjusting groove 1 25, the adjusting groove 2 26 and the adjusting groove 3 27 are connected, the adjusting groove 2 26 is located between the adjusting groove 1 25 and the adjusting groove 3 27, the depth of the adjusting groove 2 26 is less than that of the adjusting groove 1 25 and the adjusting groove 2 26, the lengths of the adjusting groove 1 25, the adjusting groove 2 26 and the adjusting groove 3 27 increase successively, the bottoms of the adjusting groove 1 25, the adjusting groove 2 26 and the adjusting groove 3 27 form an inclined connecting groove, the depth of the lower end of the adjusting member 29 increases from top to bottom, and forms an inclined guide portion 261, a protrusion 1 271 is provided at the connection between the adjusting groove 3 27 and the adjusting groove 2 26, the depth of the adjusting groove 3 27 at the protrusion 1 271 is consistent with that of the adjusting groove 2 26, and a protrusion 2 272 is also provided at the lower end of the adjusting groove 3 27, the height of the protrusion 2 272 is greater than the height of the guide portion 261.

[0044] For ease of description, the spring connecting the hook portion 291 and the adjusting member 29 is referred to as the first spring, and the spring connecting the adjusting member 292 and the hook portion 291 is referred to as the second spring. When the lifting device lifts the cap beam 4 to dock with the pier 5 through the lifting member 2, the lifting member 2 is first moved to the upper side of the cap beam 4 to be lifted, and the length of the telescopic member 28 is adjusted to decrease, so that the adjusting member 29 gradually moves into the movable groove 21, the first spring and the second spring are naturally stretched, the adjusting portion 292 is longitudinally opposite to the adjusting groove 1 25, the adjusting portion 292 slides along the adjusting groove 1 25, the depth of the adjusting groove 1 25 is not less than the extended length of the adjusting portion 292, and the adjusting portion 292 will not be squeezed, and the hook portion 291 avoids the pulling rope 231. When the adjusting portion 292 moves to the lower side of the adjusting slot 1 25 , the hooking portion 291 is located at the lower side of the pulling rope 231 , and then the adjusting portion 292 continues to move downward to the connecting slot, and the connecting slot is inclined downward along the adjusting slot 1 25 toward the direction of the adjusting slot 3 27 . The adjusting portion 292 slides in the connecting slot and at the same time slides relative to the hooking portion 291 , and squeezes the second spring to compress and accumulate force. When the adjusting portion 292 moves to the connection between the adjusting slot 2 26 and the adjusting slot 3 27 , it is affected by the protruding portion 1 271 and cannot enter the adjusting slot 3 27 .

[0045] Then adjust the length of the telescopic member 28, and drive the adjusting member 29 to move upward through the telescopic member 28, the adjusting part 292 moves upward along the adjusting groove 26, and pushes the hook part 291 to extend under the squeezing of the guide part 261, and during the continuous upward movement of the adjusting member 29, the hook part 291 hooks the pulling rope 231, and the hook part 291 hooks the pulling rope 231 upward, and when the pulling rope 231 is pulled upward, the two push blocks 23 are pulled relatively close, and the two groups of clamping mechanisms are relatively close and clamp the cap beam 4, and the lifting device lifts the cap beam 4 to the pier 5 through the lifting member 2, and completes the positioning of the cap beam 4 and the pier 5 through the positioning member 31, and slowly lowers the cap beam 4 to allow the steel bars on the pier 5 to be inserted into the hole.

[0046] After the cap beam 4 is docked with the pier 5, the inside of the hole of the cap beam 4 needs to be grouted. To ensure the quality of the grouting, the cap beam 4 needs to be lifted a short distance and then lowered. When the cap beam 4 is hoisted for the second time, because the hook portion 291 remains hooked on the pulling rope 231, the hook portion 291 is blocked by the pulling rope 231 and cannot be reset relative to the adjusting member 29. The first spring is in a state of tension and accumulation, and the extended length of the adjusting member 292 is also reduced relative to the initial state. The telescopic member 28 drives the adjusting member 29 to move downward again. When the adjusting member 292 moves to the adjusting member 292, it can smoothly pass over the protruding portion 1 271 and enter the adjusting groove 3 27. Afterwards, the telescopic member 28 drives the adjusting member 29 to move upward, and at the same time, the lifting device lifts the cap beam 4 for a short distance so that the grouting can fully fill the holes of the cap beam 4. When the adjusting member 29 moves up to the adjusting portion 292 and contacts the second protrusion 272, the second protrusion 272 squeezes the adjusting portion 292, and the adjusting portion 292 pushes the hook portion 291 to fully extend, and the hook portion 291 no longer clamps the pulling rope 231. In this position, the position of the pulling rope 231 is lower than its height in the natural state. The two push blocks 23 move away under the action of elastic force and push the two groups of clamping components to move relatively away and restore to the initial state. The pulling rope 231 is disengaged from the hook portion 291. When the adjusting portion 292 passes over the second protrusion 272, the hook portion 291 is reset under the elastic force of the second spring. After the adjusting member 29 is separated from the movable groove 21, the adjusting portion 292 is reset. Then the lifting mechanism 1 lifts the lifting member 2 and separates it from the cap beam 4 after docking.

[0047] A construction method of a cap beam 4, the specific steps are as follows: S1, lifting the cap beam 4, the lifting mechanism 1 lifts the lifting member 2 to move to the upper side of the cap beam 4 to be connected, the adjustment mechanism drives the two sets of clamping mechanisms to be relatively close, and the two sets of clamping mechanisms abut against the two inclined ends of the cap beam 4 to fix the cap beam 4; S2, the cap beam 4 is butted against the pier column 5, the hoisting mechanism 1 hoists the cap beam 4 to the upper side of the pier column 5, and positions the cap beam 4 through two sets of positioning members 31, and then lowers the cap beam 4, so that the steel bars on the pier column 5 are inserted into the holes of the cap beam 4; S3, grouting, grouting the holes on the cap beam 4, and after the grouting is completed, the cap beam 4 is lifted for a short distance by the lifting mechanism 1 and the lifting member 2 and then lowered again, thereby completing the splicing of the cap beam 4 and the pier 5.

[0048] The cap beam construction device provided by the present invention effectively improves the automatic positioning accuracy of the cap beam and the pier column, reduces the intervention of manual operation during the cap beam and pier column process, reduces the safety hazards in the construction, and improves the construction efficiency of the cap beam and pier column docking.

[0049] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A cap beam construction device, comprising a lifting mechanism (1) and a lifting member (2), wherein the lifting mechanism (1) lifts the lifting member (2) to move, and is characterized in that: The lifting member (2) is provided with two groups of clamping mechanisms and an adjusting mechanism for adjusting the relative spacing between the two groups of clamping mechanisms. The clamping mechanism comprises a clamping member (3), a positioning member (31) and a positioning assembly. There are two clamping members (3). The upper ends of the two clamping members (3) are slidably matched with the lifting member (2), and the two groups of clamping mechanisms slide downward in a relatively close direction. One end of the positioning member (31) is slidably matched with the lower ends of the two clamping members (3) and abuts against the inclined surface at the bottom of the cap beam (4). The other end of the positioning member (31) is used for movably abutting against the pier (5). The positioning assembly is used to adjust the relative angle between the positioning member (31) and the clamping member (3).

2. The cap beam construction device according to claim 1, characterized in that: The lifting member (2) is provided with two guide grooves (22), the two guide grooves (22) are inclined downward in a relatively close direction, and the upper ends of the two clamping members (3) of the same clamping mechanism are connected by a cross bar (34), and the cross bar (34) is slidably matched with the guide grooves (22) respectively.

3. The cap beam construction device according to claim 2, characterized in that: The positioning member (31) is fixed with a rotating shaft (32), the rotating shaft (32) abuts against the inclined surface at the bottom of the cap beam (4), and the rotating shaft (32) is slidably matched with and elastically connected to the lower ends of the two clamping members (3). The positioning assembly comprises a gear (321) and a rack (322), the gear (321) is fixed to the rotating shaft (32), the rack (322) is fixed to the lower end of the clamping member (3), and the gear (321) is meshed with the rack (322).

4. The cap beam construction device according to claim 3, characterized in that: A limiting member (221) is also fixed on the lifting member (2), the limiting member (221) is located on the upper side of the guide groove (22), the inclination of the limiting member (221) is consistent with that of the guide groove (22), a plurality of limiting holes are arranged at intervals on the limiting member (221), the clamping member (3) is slidably connected to a limiting rod (323), the upper end of the limiting rod (323) is movably hooked with the limiting hole, and the lower end of the limiting rod (323) is rotatably sleeved on the rotating shaft (32).

5. The cap beam construction device according to claim 1, characterized in that: The end of the positioning member (31) opposite to the pier column (5) is in a "C" shape, and two fixing blocks (33) are arranged opposite to each other on the "C" shaped end of the positioning member (31), and the fixing blocks (33) are movably abutted against the pier column (5).

6. The cap beam construction device according to claim 2, characterized in that: The adjusting mechanism comprises a movable groove (21), a push block (23), a telescopic member (28) and a pulling assembly. The movable groove (21) is arranged on the lifting member (2). The guide groove (22) is communicated with the movable groove (21). There are two push blocks (23). The two push blocks (23) are connected to the movable groove (21) through an elastic member and are slidably matched with the movable groove (21). The push blocks (23) are movably abutted against the clamping member (3). One end of the telescopic member (28) is hooked and connected to the lifting mechanism (1). The other end of the telescopic member (28) is fixed relative to the movable groove (21). The two push blocks (23) are connected through a pulling rope (231). The pulling assembly is movably hooked with the pulling rope (231).

7. The cap beam construction device according to claim 6, characterized in that: The pulling assembly comprises an adjusting member (29), an adjusting portion (292) and a hooking portion (291); the adjusting member (29) is arranged on the telescopic member (28); the hooking portion (291) is slidably matched with and elastically connected to the adjusting member (29) in a direction parallel to the width of the movable groove (21); the adjusting portion (292) is slidably matched with and elastically connected to the hooking portion (291) in a direction parallel to the length of the movable groove (21); when the adjusting portion (292) slides relative to the hooking portion (291), the length of the hooking portion (291) extending out of the adjusting member (29) is changed, and the hooking portion (291) and the pulling rope (231) are movable relative to each other in the longitudinal direction.

8. The cap beam construction device according to claim 7, characterized in that: The side wall of the movable groove (21) is longitudinally provided with an adjusting groove 1 (25), an adjusting groove 2 (26) and an adjusting groove 3 (27). The bottoms of the adjusting groove 1 (25), the adjusting groove 2 (26) and the adjusting groove 3 (27) are connected. The adjusting groove 2 (26) is located between the adjusting groove 1 (25) and the adjusting groove 3 (27). The depth of the adjusting groove 2 (26) is smaller than that of the adjusting groove 1 (25) and the adjusting groove 2 (26). The adjusting member (29) ) The depth of the lower end of the second adjusting groove (26) increases from top to bottom and forms an inclined guide portion (261). A protrusion portion (271) is provided at the connection between the third adjusting groove (27) and the second adjusting groove (26). The depth of the third adjusting groove (27) at the protrusion portion (271) is consistent with that of the second adjusting groove (26). A protrusion portion (272) is also provided at the lower end of the third adjusting groove (27). The height of the protrusion portion (272) is greater than the maximum height of the guide portion (261).

9. The cap beam construction device according to claim 8, characterized in that: The lower end surface of the second protrusion (272) is in the shape of an inclined surface that is inclined from top to bottom close to the inside of the third adjustment groove (27).

10. A cap beam construction method using the cap beam construction device according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: S1, lifting the cap beam (4), using the lifting mechanism (1) to lift the lifting piece (2) to move to the upper side of the cap beam (4) to be connected, the adjustment mechanism drives the two sets of clamping mechanisms to move relatively close, and the two sets of clamping mechanisms abut against the two inclined ends of the cap beam (4) to fix the cap beam (4); S2, the cap beam (4) is butt-jointed with the pier column (5), the hoisting mechanism (1) hoists the cap beam (4) to the upper side of the pier column (5), and after positioning the cap beam (4) by means of two sets of positioning members (31), the cap beam (4) is lowered so that the steel bars on the pier column (5) are inserted into the holes of the cap beam (4); S3, grouting, grouting the holes on the cap beam (4), and after the grouting is completed, the cap beam (4) is lifted for a short distance by the lifting mechanism (1) and the lifting member (2) and then lowered again, thereby completing the splicing of the cap beam (4) and the pier column (5).

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