Cushioning and impact-resisting device for concrete delivery pump pipe of high-rise building

Abstract

The utility model belongs to the technical field of building construction equipment, and particularly relates to a high-rise building concrete delivery pump pipe cushioning and impact resisting device which comprises a supporting and fixing frame arranged on a building floor. The supporting and fixing frame comprises a pump pipe fixing ring arranged outside the concrete conveying pipe in a sleeving mode and three inclined struts evenly distributed and surrounding the periphery of the pump pipe fixing ring, the upper ends of the inclined struts are fixedly connected with the periphery of the pump pipe fixing ring, and the lower ends of the inclined struts are arranged on a building floor in a supporting mode through spring shock absorbers. The pump pipe fixing ring comprises two semi-annular arc plates, and the two semi-annular arc plates are fixedly connected through bolt pairs arranged on the involution end faces. The device can effectively resist multidirectional vibration and impact of the pump pipe and absorb and dissipate energy of the pump pipe, so that impact transmission of the pump pipe to structures such as building floors and walls is greatly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of building construction equipment technology, specifically relating to a shock-absorbing and impact-resistant device for concrete conveying pump pipes in high-rise buildings. Background Technology

[0002] In the construction of high-rise and super high-rise buildings, concrete pumping technology is a crucial link in ensuring construction efficiency and quality. Concrete is pressurized and transported by ground pumps to working surfaces tens or even hundreds of meters high through delivery pump pipes installed on the building structure. However, during this pumping process, especially under high-pressure, pulsed pumping conditions, the flow of concrete in the pipes and the periodic pulses of the pump truck itself can cause strong impacts and vibrations in the entire pumping system. Currently, simple supports made of channel steel or angle steel are commonly used on construction sites to rigidly fix the pump pipes to the building formwork or poured floor slabs with clamps. This fixing method has obvious drawbacks: First, the severe vibration of the pump pipes is transmitted to the building structure with almost no attenuation, especially easily causing micro-cracks in newly poured concrete floor slabs whose strength has not yet fully developed, directly affecting the safety and durability of the structure. Second, rigid connections subject the pump pipes, clamps, and joints to huge vibration reaction forces for a long time, easily leading to joint loosening, accelerated wear, and even the risk of pipe bursting, which not only increases maintenance costs but also brings safety hazards. Third, strong vibrations also generate a lot of noise, deteriorating the construction environment.

[0003] Chinese patent CN218375310U discloses a buffer device for high-rise concrete pump pipes, including a bracket, a locking buckle, and a buffer spring. The bracket has a first diagonal brace for supporting the lower arc-shaped section of the concrete pump pipe. The locking buckle is installed on the bracket and used to fix the concrete pump pipe. One end of the buffer spring is fixed to the bracket, and the other end is used to abut against the concrete pump pipe to reduce the impact force on the concrete pump pipe. This patent uses a bracket anchored to the floor slab below the working floor, in conjunction with the locking buckle and the buffer spring, to buffer the impact force on the concrete pump pipe, enhancing the stability and durability of the pump pipe. However, the support structure of this patent is an asymmetrical bracket, mainly composed of a vertical brace and two diagonal braces of different lengths and angles. This support structure has weak anti-overturning and anti-torsion capabilities when subjected to complex multi-directional vibrations of the pump pipe. Furthermore, this patent only sets a limited number of buffer springs at the vertical section and bends of the pump pipe, resulting in a single and passive shock absorption method with limited buffering effect. Utility Model Content

[0004] The purpose of this invention is to provide a shock-absorbing and impact-resistant device for concrete conveying pump pipes in high-rise buildings, which can effectively resist multi-directional vibration and impact of the pump pipe, absorb and dissipate the energy of the pump pipe, and thus significantly reduce the impact transmission of the pump pipe to building floors, walls and other structures.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A shock-absorbing and impact-resistant device for concrete conveying pump pipes in high-rise buildings includes a supporting and fixing frame installed on the building floor slab. The supporting and fixing frame includes a pump pipe fixing ring sleeved on the outside of the concrete conveying pipe and three diagonal braces evenly distributed around the periphery of the pump pipe fixing ring. The upper end of the diagonal braces is fixedly connected to the outer periphery of the pump pipe fixing ring, and the lower end of the diagonal braces is supported on the building floor slab by spring shock absorbers. The pump pipe fixing ring includes two semi-annular arc plates, which are fixedly connected by bolt pairs provided on their mating end faces.

[0007] Furthermore, a rubber buffer pad is installed between the pump pipe fixing ring and the concrete delivery pipe.

[0008] Furthermore, the inner wall of the semi-annular arc plate is provided with a groove for embedding a rubber buffer pad.

[0009] Furthermore, the rubber cushioning pad is arranged in a circular shape.

[0010] Furthermore, the diagonal brace includes an upper connector, an inclined support section, and a lower mounting base arranged in sequence, all of which are made of channel steel.

[0011] Furthermore, the upper connector, inclined support section, and lower mounting base are integrally molded.

[0012] Furthermore, the upper connector is vertically positioned, and its vertical end face is welded to the outer circumferential surface of the pump pipe fixing ring.

[0013] Furthermore, the lower mounting base is horizontally positioned, and its horizontal end face is fixedly connected to the top of the spring shock absorber by bolts.

[0014] Furthermore, the three diagonal braces are evenly distributed at a 120° angle on the horizontal plane.

[0015] Furthermore, the base of the spring damper is fixedly connected to the building floor slab by anchor bolts, and the spring damper is a seated damping spring damper.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention utilizes a triangular support system comprised of a pump pipe fixing ring and three evenly distributed, surrounding diagonal braces to form a stable and symmetrical support frame. This fundamentally overcomes the weaknesses of asymmetrical brackets in resisting overturning and torsion, effectively resisting vibrations and impacts from the concrete delivery pipe. This ensures the entire support frame remains stable and does not sway during long-term, intense pumping operations. Simultaneously, spring shock absorbers located at the bottom of the diagonal braces convert the intense impact and vibration energy from the concrete delivery pipe into the elastic potential energy of the springs and dissipate it, significantly reducing the impact force transmitted to the building floor slab. This effectively prevents micro-cracks in newly poured concrete floor slabs, fundamentally guaranteeing the safety and durability of the building structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the diagonal brace in this utility model;

[0021] Figure 4 This is a schematic diagram of the spring shock absorber in this utility model;

[0022] Figure 5 This is a schematic diagram of the pump pipe fixing ring and rubber buffer pad in this utility model;

[0023] Figure 6 This is a partial structural cross-sectional view of the pump pipe fixing ring in this utility model;

[0024] Figure 7 This is a partial structural cross-sectional view of the pump pipe fixing ring and rubber buffer pad in this utility model;

[0025] In the picture:

[0026] 1. Building floor slab; 2. Concrete delivery pipe; 3. Pump pipe fixing ring; 4. Diagonal brace; 401. Upper connector; 402. Inclined support section; 403. Lower mounting base; 5. Spring shock absorber; 6. Rubber buffer pad. Detailed Implementation

[0027] The present invention will now be described and illustrated in detail with reference to the embodiments.

[0028] Example 1

[0029] like Figure 1-7As shown, the shock-absorbing and impact-resistant device for concrete conveying pump pipes in high-rise buildings includes a support and fixing frame installed on the building floor slab 1. The support and fixing frame includes a pump pipe fixing ring 3 sleeved on the concrete conveying pipe 2 and three diagonal braces 4 evenly distributed around the pump pipe fixing ring 3. The upper end of the diagonal brace 4 is fixedly connected to the outer periphery of the pump pipe fixing ring 3, and the lower end of the diagonal brace 4 is supported on the building floor slab 1 by a spring shock absorber 5. The pump pipe fixing ring 3 includes two semi-annular arc plates, which are fixedly connected by bolt pairs provided on the mating end faces.

[0030] A rubber buffer pad 6 is installed between the pump pipe fixing ring 3 and the concrete conveying pipe 2.

[0031] The inner wall of the semi-circular arc plate is provided with a groove for embedding a rubber buffer pad 6.

[0032] The rubber buffer pad 6 is arranged in a circular shape.

[0033] The diagonal brace 4 includes an upper connector 401, an inclined support section 402, and a lower mounting base 403 arranged in sequence. The upper connector 401, the inclined support section 402, and the lower mounting base 403 are all made of channel steel.

[0034] The upper connector 401, the inclined support section 402, and the lower mounting base 403 are integrally formed.

[0035] The upper connector 401 is vertically positioned, and its vertical end face is welded to the outer circumferential surface of the pump pipe fixing ring 3.

[0036] The lower mounting base 403 is horizontally positioned, and its horizontal end face is fixedly connected to the top of the spring shock absorber 5 by bolts.

[0037] The three diagonal braces 4 are evenly distributed at a 120° angle on the horizontal plane.

[0038] The base of the spring damper 5 is fixedly connected to the building floor slab 1 by anchor bolts. The spring damper 5 is a seated damping spring damper 5.

[0039] Working process and principle:

[0040] When concrete flows through the concrete delivery pipe 2 under high pressure, it generates intense and complex multidirectional impacts and vibrations. The vibrations of the concrete are first transmitted through the pipe wall of the concrete delivery pipe 2 to the rubber buffer pad 6 in close contact with it; the rubber buffer pad 6 undergoes elastic deformation, absorbing and buffering some of the high-frequency micro-vibrations and local impacts. Subsequently, the remaining vibrations and impacts are transmitted through the rubber buffer pad 6 to the pump pipe fixing ring 3.

[0041] The pump pipe fixing ring 3 evenly transmits the vibration impact from the concrete delivery pipe 2 to the upper connector 401 at the upper end of the three evenly distributed surrounding diagonal braces 4. The impact force is transmitted along the inclined support section 402 of the diagonal brace 4 to the lower mounting base 403 at the lower end, and finally acts on the spring damper 5. As the core damping element, the spring damper 5 has its internal spring undergoing compression or tension deformation, converting the huge impact kinetic energy into elastic potential energy; at the same time, the damper built into the spring damper 5 converts this potential energy into heat energy and dissipates it into the air, thereby greatly consuming the vibration energy.

[0042] The minimal residual force, after being fully reduced by the spring damper 5, is smoothly transmitted to the building floor slab 1, thereby avoiding damage to the building floor slab 1 caused by rigid impact.

Claims

1. A shock-absorbing and impact-resistant device for concrete conveying pump pipes in high-rise buildings, comprising a supporting and fixing frame installed on the building floor slab (1), characterized in that, The supporting and fixing frame includes a pump pipe fixing ring (3) sleeved outside the concrete delivery pipe (2) and three diagonal braces (4) evenly distributed around the periphery of the pump pipe fixing ring (3). The upper end of the diagonal brace (4) is fixedly connected to the outer periphery of the pump pipe fixing ring (3), and the lower end of the diagonal brace (4) is supported on the building floor slab (1) by a spring shock absorber (5). The pump pipe fixing ring (3) includes two semi-circular arc plates, which are fixedly connected by bolt pairs set on the mating end faces.

2. The shock-absorbing and impact-resistant device for high-rise building concrete conveying pump pipes according to claim 1, characterized in that, A rubber buffer pad (6) is provided between the pump pipe fixing ring (3) and the concrete conveying pipe (2).

3. The shock-absorbing and impact-resistant device for high-rise building concrete conveying pump pipes according to claim 2, characterized in that, The inner wall of the semi-circular arc plate is provided with a groove for embedding a rubber buffer pad (6).

4. The shock-absorbing and impact-resistant device for high-rise building concrete conveying pump pipes according to claim 2, characterized in that, The rubber cushioning pad (6) is arranged in a circular shape.

5. The shock-absorbing and impact-resistant device for high-rise building concrete conveying pump pipes according to claim 1, characterized in that, The diagonal brace (4) includes an upper connector (401), an inclined support section (402), and a lower mounting base (403) arranged in sequence. The upper connector (401), the inclined support section (402), and the lower mounting base (403) are all made of channel steel.

6. The shock-absorbing and impact-resistant device for high-rise building concrete conveying pump pipes according to claim 5, characterized in that, The upper connector (401), the inclined support section (402), and the lower mounting base (403) are integrally formed.

7. The shock-absorbing and impact-resistant device for high-rise building concrete conveying pump pipes according to claim 5, characterized in that, The upper connector (401) is set vertically, and the vertical end face of the upper connector (401) is welded to the outer circumferential surface of the pump pipe fixing ring (3).

8. The shock-absorbing and impact-resistant device for high-rise building concrete conveying pump pipes according to claim 5, characterized in that, The lower mounting base (403) is horizontally positioned, and the horizontal end face of the lower mounting base (403) is fixedly connected to the top of the spring shock absorber (5) by bolts.

9. The shock-absorbing and impact-resistant device for high-rise building concrete conveying pump pipes according to claim 1, characterized in that, The three diagonal braces (4) are evenly distributed at a 120° angle on the horizontal plane.

10. The shock-absorbing and impact-resistant device for high-rise building concrete conveying pump pipes according to claim 1, characterized in that, The base of the spring damper (5) is fixedly connected to the building floor slab (1) by anchor bolts. The spring damper (5) is a seated damping spring damper (5).

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