Liftable mounting operation platform for high-pier cast-in-place beam pier cap hanging fence

Abstract

The utility model belongs to the technical field of bridge construction, and particularly relates to a lifting installation operation platform for a high-pier cast-in-place beam pier cap hanging fence. A plurality of limiting pieces are arranged in the middle of the inner side of the periphery of the bearing frame; the limiting piece comprises a fixing base fixed to the inner side of the bearing frame, a limiting pipe connected with the fixing base, a screw sleeve fixed to the outer end of the limiting pipe, an adjusting screw rod in threaded fit with the screw sleeve and a ball head support connected to the outer end of the adjusting screw rod. A supporting piece is arranged on the inner side of the bearing frame. The bearing frame, the limiting piece, the supporting frame, the lifting piece and other parts are designed, the ball head support is supported on the outer wall of the pier by adjusting the adjusting lead screw in the limiting piece, the bearing frame can be limited and prevented from shaking left and right and front and back, the stability of the device and the working safety can be improved, and the service life of the device is prolonged. And pier bodies with different cross section sizes can be met, the operability is high, and the application range is wide.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and particularly relates to a liftable installation operation platform for the pier cap hanging fence of a high pier cast-in-place beam. Background Technique

[0002] In bridge construction, the installation operation of the pier cap hanging fence belongs to high-altitude operation. When personnel install it, they need to rely on a crane or an aerial work vehicle for high-altitude operation installation, which poses great safety hazards. In addition, the materials of the pier cap hanging fence need to be transported to the pier top by a crane. The material hoisting is difficult, the efficiency is low, and the risk is high. Moreover, the span and distance between piers are large, and a crane is required to cooperate in transporting materials, resulting in high construction costs.

[0003] In the prior art, there are other forms of pier hanging fence installation devices disclosed. For example, the patent of CN219839952U discloses a combined mobile lifting platform device for the installation operation of the pier body hanging fence. The combined mobile lifting platform device for the installation operation of the pier body hanging fence includes a construction platform, a plurality of lifting components and a plurality of traction components. Among them, the construction platform surrounds the pier; the plurality of lifting components are connected to the construction platform and are used to drive the construction platform to lift along the height direction of the pier; the plurality of traction components are evenly arranged around the construction platform. During operation, one end of the traction component is connected to the construction platform and the other end is connected to the pier, and is used to prevent the platform from shaking and tilting. During construction, it is lifted to a suitable height through the lifting components, and the hanging fence is installed on the construction platform. And traction components are arranged around the construction platform to connect and fix the construction platform to the pier and level it, so that it is more stable in harsh weather environments such as strong winds, not easy to shake and tilt, reducing the construction difficulty and improving the construction safety.

[0004] It is undeniable that the combined mobile lifting platform device for the installation operation of the pier body hanging fence disclosed in this patent can indeed achieve the above effects, but it still has certain deficiencies; the size of the assembled construction platform is fixed, and the distance between the inner side and the outer wall of the pier body is fixed. In the actual bridge construction process, the cross-section of the pier body is large or small. When there is a certain distance or a large distance between the inner side of the construction platform and the outer wall of the pier body, the construction platform may shake left and right and back and forth, posing certain safety hazards.

[0005] The information disclosed in this background technical part is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Content of the Utility Model

[0006] The purpose of the utility model is to provide a liftable installation operation platform for the pier cap hanging fence of a high pier cast-in-place beam to solve the problems existing in the combined mobile lifting platform device for the installation operation of the pier body hanging fence in the background technique.

[0007] To achieve the above object, the present utility model provides the following technical solutions:

[0008] A liftable installation operation platform for the pier cap hanging fence of a cast-in-place beam of a high pier, comprising:

[0009] A rectangular load-bearing frame surrounding the pier, with 2 cantilever beams respectively and fixedly spaced at the left and right ends of the load-bearing frame; support pedals are respectively and fixedly arranged around the top of the load-bearing frame;

[0010] A plurality of limit members are respectively and spaced in the middle of the inner sides of the four sides of the load-bearing frame. The limit members include a fixed seat fixed on the inner side of the load-bearing frame, a limit tube connected to the fixed seat, a wire sleeve fixed on the outer end of the limit tube, an adjusting screw threadedly engaged with the wire sleeve, and a ball head support connected to the outer end of the adjusting screw;

[0011] A support member is arranged at the position on the inner side of the load-bearing frame outside the limit member. The support member includes a connecting seat fixed on the inner side of the load-bearing frame and a support tube connected to the connecting seat.

[0012] Further, a lifting lug is fixed at the outer end of the cantilever beam.

[0013] Further, a plurality of adjusting pedals are laid on the limit members and the support members.

[0014] Further, two first fixing holes are respectively and horizontally spaced in the middle of the fixed seat, and two second fixing holes corresponding to the first fixing holes are formed on the limit tube; an external bolt passes through the two first fixing holes and the second fixing holes at the corresponding positions to connect the limit tube to the fixed seat.

[0015] Further, two first connecting holes are respectively and horizontally spaced in the middle of the connecting seat, and two second connecting holes corresponding to the first connecting holes are formed on the support tube; an external bolt passes through the two first connecting holes and the second connecting holes at the corresponding positions to connect the support tube to the connecting seat.

[0016] Further, four groups of limit members are respectively and spaced on the inner walls on both sides in the length direction of the load-bearing frame, and two groups of limit members are respectively and spaced on the inner walls on both sides in the width direction of the load-bearing frame.

[0017] Further, both the limit tube and the support tube are square tubes.

[0018] Further, a guardrail is fixed around the support pedal.

[0019] Further, a ball head is fixed on the outer end of the adjusting screw, and the ball head extends into and is installed in the ball head support.

[0020] Further, the liftable installation operation platform for the pier cap of the cast-in-situ beam of the high pier further includes a lifting member. The lifting member includes a balance beam disposed between the beam joints of two box girders at the top of the pier and an electric hoist fixedly connected to the balance beam. Two steel wires are branched from the lower end of the electric hoist, and the lower ends of the two steel wires are respectively connected to the lifting lugs of two cantilever beams at one end of the load-bearing frame.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] Based on the problems existing in the prior art and combined with the actual situation during the construction of the pier cap hanging fence, the utility model designs multiple components such as a load-bearing frame, a limiting member, a support frame, and a lifting member. During use, by adjusting the adjusting screw rod in the limiting member, the spherical head support is supported on the outer wall of the pier, which can limit the load-bearing frame and prevent the load-bearing frame from shaking left and right or back and forth. It can improve the stability of the device and the safety of work, and can meet pier bodies with different cross-sectional dimensions, with strong operability and a wide application range. Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the utility model;

[0024] Figure 2 is the schematic diagram of the load-bearing frame, limiting member, and support member of the utility model;

[0025] Figure 3 is Figure 2 the enlarged view at A in

[0026] Figure 4 is the connection state diagram of the limiting pipe and the fixed seat or the support pipe and the connecting seat of the utility model;

[0027] Figure 5 is another state diagram of the limiting pipe and the fixed seat or the support pipe and the connecting seat of the utility model;

[0028] Figure 6 is the state diagram of the utility model after installing the guardrail;

[0029] Figure 7 is Figure 6 the right view of

[0030] Main reference numeral description:

[0031] 1. Load-bearing frame; 11. Cantilever beam; 12. Lifting lug; 13. Support pedal; 14. Guardrail;

[0032] 2. Limiting member; 21. Fixed seat; 211. First fixing hole; 22. Limiting tube; 221. Second fixing hole; 23. Threaded sleeve; 24. Adjusting screw rod; 241. Ball head; 25. Ball head support

[0033] 3. Supporting member; 31. Connecting seat; 311. First connecting hole; 32. Supporting tube; 321. Second connecting hole

[0034] 4. Lifting member; 41. Balance beam; 42. Electric hoist; 43. Steel wire rope

[0035] 5. Adjusting pedal

[0036] 10. Bridge pier; 20. Box girder Detailed implementation mode

[0037] The technical solutions of the patent of the present utility model will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those skilled in the art within the scope of the present utility model without creative efforts based on the embodiments of the present utility model belong to the protection scope of the present utility model.

[0038] Embodiment

[0039] Refer to the attached Figures 1-7 , a liftable installation operation platform for the pier cap suspension fence of a cast-in-place beam of a high pier, comprising:

[0040] A rectangular load-bearing frame 1 surrounding the bridge pier 10, with 2 cantilever beams 11 fixedly spaced at the left and right ends of the load-bearing frame 1 respectively, and a lifting lug 12 fixedly installed at the outer end of the cantilever beam 11; horizontal support pedals 13 are fixedly installed around the top of the load-bearing frame 1;

[0041] A plurality of limiting members 2 are respectively and spacedly arranged in the middle of the inner sides of the four sides of the load-bearing frame 1. The limiting member 2 includes a fixed seat 21 fixed on the inner side of the load-bearing frame 1, a limiting tube 22 connected to the fixed seat 21, a threaded sleeve 23 fixed on the outer end of the limiting tube 22, an adjusting screw rod 24 threadedly engaged with the threaded sleeve 23, and a ball head support 25 connected to the outer end of the adjusting screw rod 24; specifically, a ball head 241 is fixed on the outer end of the adjusting screw rod 24, and the ball head 241 extends into and is installed in the ball head support 25; in addition, the specific connection method between the limiting tube 22 and the fixed seat 21 is: two first fixing holes 211 are horizontally spacedly opened in the middle of the fixed seat 21, and two second fixing holes 221 corresponding to the first fixing holes 211 are opened on the limiting tube 22; the limiting tube 22 is connected and fixed to the fixed seat 21 by using an external bolt to penetrate through the two first fixing holes 211 and the second fixing holes 221 at the corresponding positions;

[0042] A support member 3 is provided at a position on the inner side of the load-bearing frame 1 outside the limiting member 2. The support member 3 includes a connecting seat 31 fixed to the inner side of the load-bearing frame 1 and a support pipe 32 connected to the connecting seat 31. The specific connection method is as follows: Two first connection holes 311 are horizontally spaced apart in the middle of the connecting seat 31, and two second connection holes 321 corresponding to the first connection holes 311 are provided on the support pipe 32. The support pipe 32 is connected to the connecting seat 31 by passing an external bolt through the two first connection holes 311 and the second connection holes 321 at the corresponding positions.

[0043] A lifting member 4, the lifting member 4 includes a balance beam 41 disposed between the beam joints of two box girders 20 at the top of the pier 10 and an electric hoist 42 fixedly connected to the balance beam 41. Two steel wire ropes 43 are branched from the lower end of the electric hoist 42, and the lower ends of the two steel wire ropes 43 are respectively connected to the lifting lugs 12 of two cantilever beams 11 at one end of the load-bearing frame 1.

[0044] In this embodiment, a plurality of adjusting pedals 5 are laid on the limiting member 2 and the support member 3. It should be supplemented here that the adjusting pedal 5 itself does not have an adjusting function, but only realizes adjustment by the number of laying. For example, when the distance between the inner side of the load-bearing frame 1 and the outer wall of the pier 10 is far, more adjusting pedals 5 are laid; on the contrary, fewer are laid.

[0045] In addition, in this embodiment, four groups of limiting members 2 are respectively and spacedly arranged on the inner walls on both sides in the length direction of the load-bearing frame 1, and two groups of limiting members 2 are respectively and spacedly arranged on the inner walls on both sides in the width direction of the load-bearing frame 1. The limiting pipe 22 and the support pipe 32 are both square pipes.

[0046] Secondly, a guardrail 14 is fixed around the support pedal 13. It should be supplemented here that square pipes (not marked in the drawings) are welded on the outer sides of the support pedal 13, and the lower ends of the guardrail 14 are inserted into the square pipes and fixed.

[0047] During use, the balance beam 41 is placed between the beam joints of two box girders 20 at the top of the pier 10, the electric hoist 42 is fixed on the balance beam 41, two steel wire ropes 43 are branched from the lower end of the electric hoist 42, and the lower ends of the two steel wire ropes 43 are respectively connected to the lifting lugs 12 of two cantilever beams 11 at one end of the load-bearing frame 1. It should be noted here that a total of two balance beams 41 and two electric hoists 42 are provided, so that a total of four steel wire ropes 43 are branched from the two electric hoists 42, and the four steel wire ropes 43 correspond to four lifting lugs 12. When lifting, the electric hoist 42 is operated to lift and lower through the steel wire ropes 43, thereby realizing the lifting of the entire installation operation platform.

[0048] Wherein, when the load-bearing frame 1 is lifted away from the bearing platform of the bridge pier 10, external bolts are used to penetrate the first connection hole 311 and the second connection hole 321 at the inner end, thereby connecting the inner end of the support pipe 32 and the inner end of the connection seat 31; similarly, external bolts are used to penetrate the first fixing hole 211 and the second connection hole 321 at the inner end, thereby connecting the inner end of the fixing seat 21 and the inner end of the limiting pipe 22; after the load-bearing frame 1 is lifted in place, the support pipe 32 is flipped so that the remaining one first connection hole 311 and the second connection hole 321 correspond and are penetrated by external bolts, thereby firmly fixing the support pipe 32 on the connection seat 31; similarly, the limiting pipe 22 is flipped so that the remaining one first fixing hole 211 and the second fixing hole 221 are penetrated by external bolts, thereby firmly fixing the limiting pipe 22 on the fixing seat 21.

[0049] After the limiting pipe 22 is firmly fixed, the adjusting screw rod 24 is rotated outwards, and the adjusting screw rod 24 drives the spherical head support 25 to move towards the bridge pier 10. In this way, the spherical head support 25 supports on the outer wall of the bridge pier 10, which can form a limiting effect on the support frame 1, avoid the left-right and front-back shaking of the load-bearing frame 1, and improve the stability of the device and the safety of the work.

[0050] After the hanging fence is installed, the electric hoist 42 is operated to lower the load-bearing frame 1 to the bearing platform of the bridge pier 10 through the steel wire rope 43.

[0051] The foregoing description of the specific exemplary embodiments of the present invention is for the purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A high pier cast-in-place beam cap hanging fence can be lifted and lowered to install the work platform, characterized in that: include: A rectangular load-bearing frame is arranged around the bridge pier, and two cantilever beams are fixed at intervals on the left and right ends of the load-bearing frame; support pedals are fixed around the top of the load-bearing frame; A plurality of limiting members are arranged at intervals in the middle of the inner side of the four sides of the load-bearing frame, and the limiting members include a fixing seat fixed on the inner side of the load-bearing frame, a limiting tube connected to the fixing seat, a threaded sleeve fixed to the outer end of the limiting tube, an adjusting screw rod threadably matched with the threaded sleeve, and a ball head support connected to the outer end of the adjusting screw rod; A support member is arranged at a position on the inner side of the load-bearing frame and located outside the limiting member. The support member includes a connecting seat fixed on the inner side of the load-bearing frame and a supporting pipe connected to the connecting seat.

2. The high pier cast-in-place beam cap hanging fence lifting and installation work platform according to claim 1 is characterized in that: A lifting lug is fixed on the outer end of the cantilever beam.

3. The high pier cast-in-place beam cap hanging fence lifting and installation work platform according to claim 1 is characterized in that: A plurality of adjustment pedals are arranged on the limiting member and the supporting member.

4. The high pier cast-in-place beam cap hanging fence lifting and installation work platform according to claim 1 is characterized in that: Two first fixing holes are arranged horizontally apart in the middle of the fixing seat, and two second fixing holes corresponding to the first fixing holes are arranged on the limiting tube; the limiting tube is connected to the fixing seat by penetrating the two first fixing holes and the second fixing holes at corresponding positions with external bolts.

5. The high pier cast-in-place beam cap hanging fence lifting and installation work platform according to claim 1 is characterized in that: Two first connection holes are arranged horizontally apart in the middle of the connection seat, and two second connection holes corresponding to the first connection holes are arranged on the support tube; the support tube is connected to the connection seat by penetrating the two first connection holes and the second connection holes at corresponding positions with external bolts.

6. The high pier cast-in-place beam cap hanging fence lifting and installation work platform according to claim 1 is characterized in that: Four groups of position limiting members are respectively arranged at intervals on the inner walls on both sides of the length direction of the load-bearing frame, and two groups of position limiting members are respectively arranged at intervals on the inner walls on both sides of the width direction of the load-bearing frame.

7. The high pier cast-in-place beam cap hanging fence lifting and installation work platform according to claim 1 is characterized in that: The limiting tube and the supporting tube are both square tubes.

8. The high pier cast-in-place beam cap hanging fence lifting and installation work platform according to claim 1 is characterized in that: Guardrails are fixed around the supporting pedal.

9. The high pier cast-in-place beam cap hanging fence lifting and installation work platform according to claim 1 is characterized in that: A ball head is fixed on the outer end of the adjusting screw rod, and the ball head extends into and is installed in the ball head support.

10. The high pier cast-in-place beam cap hanging fence lifting and installation work platform according to claim 1 is characterized in that: The high pier cast-in-place beam cap hanging fence liftable installation work platform also includes a lifting component, which includes a shoulder beam arranged between the beam seams of two box beams on the top of the pier and an electric hoist fixedly connected to the shoulder beam, wherein two steel wire ropes are separated from the lower end of the electric hoist, and the lower ends of the two steel wire ropes are respectively connected to the lifting ears of two cantilever beams at one end of the load-bearing frame.

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