CN110159864B

CN110159864B - Concrete pump pipe fixing structure for high-rise building construction

Info

Publication number: CN110159864B
Application number: CN201910487653.XA
Authority: CN
Inventors: 李鹏成; 朱宝峰; 赵锐; 张惠钧
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-11-10
Anticipated expiration: 2039-06-05
Also published as: CN110159864A

Abstract

The invention discloses a concrete pump pipe fixing structure for high-rise building construction, which is characterized in that: comprises a vertical supporting plate and a swinging block; the surface of the vertical supporting plate is provided with a connecting buckle which can be fixed on the steel pipe frame; the swing block is composed of a rotating part and a limiting part, wherein the rotating part and the connecting buckle are respectively arranged on two opposite side plate surfaces of the vertical supporting plate, and the rotating part is rotatably connected with the connecting seat of the vertical supporting plate through a vertical pin shaft. According to the scheme, the pump pipe can swing in a limiting hole of the swinging block in a constrained manner through the limiting assembly, so that floating flexible connection is realized, and energy can be absorbed; the swinging block swings in a constrained manner under the action of the spring, and absorbs energy in the swinging process, so that the pump pipe is effectively prevented from being separated from the steel pipe frame; simultaneously, spacing subassembly in the present case can let the pump line automatic re-setting on the swing piece, and the spring can let swing piece automatic re-setting again to let the pump line for steel pipe frame automatic re-setting after suffering the vibration.

Description

Concrete pump pipe fixing structure for high-rise building construction

Technical Field

The invention relates to the technical field of high-rise building construction equipment, in particular to a concrete pump pipe fixing structure for high-rise building construction.

Background

In building construction, concrete is generally conveyed by a ground pump or an automobile pump in concrete pouring. However, the automobile pump is greatly limited by sites, and the conveying height of the automobile pump is generally not more than 50 meters, so that the ground pump is basically adopted for conveying concrete in the high-rise building construction. Existing pumps generally comprise two parts: a load-bearing part, such as an automobile chassis, a trailer-type wheeled chassis or a trailer-type tracked chassis; the second is a pumping part, such as a delivery pump, a feeding mechanism and a pump pipe. In actual construction, the rest of the structure of the ground pump is generally placed on the ground except for the pump pipe. The pump pipe vertically extends upwards for dozens of meters or even hundreds of meters and transversely extends for several meters or even dozens of meters by continuously increasing the number of sections. The pump tube needs to be fixed during the extension process of the pump tube.

The existing pump pipe fixing device generally adopts the superposition of a U-shaped pipe clamp and a steel pipe fastener, or welds a steel bracket on site to fix the pump pipe on a steel pipe frame. However, in the process of pumping concrete, the pulse vibration of the pumping mechanism and the impact of the concrete on the pump pipe cannot be avoided, and the situations that the U-shaped pipe clamp, the steel pipe fastener and the section steel support which do not have the buffering and vibration absorbing capacity shift and fall off due to vibration are often caused, so that the pump pipe can vibrate up and down in the vertical direction and horizontally swing left and right to shift, and even the pump pipe can be caused to separate from the fixing device due to vibration or drive the fixing device to separate from the steel pipe frame, and cannot be automatically reset. Therefore, the fixing device of the pump pipe needs to be inspected and maintained frequently, and is time-consuming and labor-consuming.

Disclosure of Invention

The invention aims to provide a concrete pump pipe fixing structure capable of absorbing vibration force and used for high-rise building construction, so that the influence of pulse vibration of a pumping mechanism on a pump pipe when the pumping mechanism conveys concrete is avoided, the pump pipe is effectively prevented from being separated from a steel pipe frame, and the pump pipe can be maintained to be automatically reset after being subjected to vibration.

The technical scheme of the invention is as follows: a concrete pump pipe fixed knot that high-rise building construction used constructs which characterized in that: comprises a vertical supporting plate (5) and a swinging block (3); the surface of the vertical supporting plate (5) is provided with a connecting buckle (6) which can be fixed on the steel pipe frame (13) (1); the swing block (3) is composed of a rotating part (31) and a limiting part (32), wherein the rotating part (31) and the connecting buckle (6) are respectively arranged on two opposite side plate surfaces of the vertical supporting plate (5), and the rotating part is rotatably connected with the connecting seat (51) of the vertical supporting plate (5) through a vertical pin shaft (4); two sides of the limiting part (32) are symmetrically provided with a tension spring (8), one end of the tension spring (8) is fixed with the vertical supporting plate (5), and the other end of the tension spring (8) is fixed with the outer wall of the limiting part (32); a limiting hole (301) for the pump pipe (1) to pass through is formed in the center of the limiting part (32) along the axial direction, and the aperture of the limiting hole is larger than the outer diameter of the pump pipe (1); a group of limiting grooves (302) are uniformly distributed on the upper end surface of the limiting part (32) along the circumferential direction, the limiting grooves (302) are formed along the radial direction of the limiting hole (301), the inner ends of the limiting grooves are communicated with the limiting hole (301), and a limiting component is arranged in each limiting groove (302); the limiting assembly comprises a cast iron ball (9) and an adjusting bolt (11), wherein the cast iron ball (9) and a pressure spring (10) are both arranged in a limiting groove (302), the pressure spring (10) is positioned between the cast iron ball (9) and the adjusting bolt (11), and the cast iron ball (9) is in rolling fit with the groove wall of the limiting groove (302); the adjusting bolt (11) is in threaded connection with the limiting part (32), and the tail part of the adjusting bolt (11) is abutted against the end part of the pressure spring (10); the upper end face of the limiting part (32) provided with the limiting groove (302) is fixedly connected with a cover plate (12) which is used for preventing the cast iron ball (9) from falling out of the limiting groove (302).

The working principle of the basic scheme of the invention is as follows: firstly, fixing a vertical support plate (5) with a steel pipe frame or a concrete foundation through a connecting buckle (6); secondly, the pump pipe (1) penetrates through the limiting hole (301), and all the cast iron balls (9) are in contact with the outer wall of the pump pipe (1) under the action of corresponding springs, so that the pump pipe (1) and the swinging block (3) are flexibly connected together. When the pump pipe rocked due to vibration impact, the pump pipe (1) can rock in the limiting hole (301), certain pressure springs are pressed in the rocking process, and the certain pressure springs are not pressed, but all the cast iron balls (9) can be in contact with the outer wall of the pump pipe (1) under the action of the corresponding springs, so that the energy of rocking of the pump pipe is absorbed through the pressure springs, and the pump pipe rocks in a constrained manner. Meanwhile, the swing block (3) can swing around the vertical pin shaft due to the swinging of the pump pipe, so that the rigid impact between the pump pipe and the swing block (3) can be avoided, the energy of the swinging of the pump pipe is absorbed, and the energy is transmitted to the steel pipe frame or the concrete foundation. In the swinging process of the swinging block (3), the two springs are matched to restrain the swinging block (3) from two sides, so that the swinging block (3) is prevented from impacting a vertical supporting plate (5) due to unrestraint swinging, the swinging block (3) can automatically reset, and the two purposes are achieved at one stroke, therefore, the springs arranged in the position of the scheme are matched and acted with the swinging block (3), and the action is different from the action of simply providing elastic force in the prior art.

The following specific description is required:

1. although common in the prior art, the spring + ball structure is generally used in a gear shifting mechanism for axially positioning a gear shifting shaft, and the ball is a steel ball. In the scheme, the structure of the spring and the ball is used for flexibly connecting the pump pipe in a floating manner and limiting the pump pipe for building construction; in addition, the ball in this case is cast iron because the pump line also adopts cast iron material usually, so can guarantee the life of ball and pump line.

2. The present case adopts a set of spacing subassembly along circumference equipartition for to the pump line flexible coupling with floating, let the pump line rock with restraint, and through the pressure spring absorbed energy rocking the in-process, avoid the pump line to receive the rigidity and strike, thereby guarantee the reliable connection of pump line, this structural style is not seen in the prior art of connecting of pump line.

3. Swing piece in this case can be swung towards both sides around vertical round pin axle, and swing piece bilateral symmetry is equipped with the spring, and two springs cooperate and get up and retrain swing piece (3) from both sides, prevent like this firstly that swing piece (3) from striking vertical support board (5) because of swing unrestrainedly, secondly can let swing piece (3) automatic re-setting.

4. The aforementioned points 1-3 in the present case cooperate with each other and cooperate with each other to realize: the pump pipe is prevented from being separated from the steel pipe frame, and the pump pipe can be maintained to be automatically recovered to use after being subjected to the vibration action. The 1 st to 3 rd points of the synergistic effect in the scheme are as follows: if only the 2 nd and 3 nd structures are adopted, but the spring-form limiting assembly at the 1 st point is not adopted, the rigid impact of the pump pipe and the limiting assembly is large, and the impact energy is transmitted to the steel pipe frame through the swinging block and the vertical connecting plate, so that the pump pipe cannot be effectively prevented from being separated from the steel pipe frame; if the structures 1 and 3 are adopted and the structure of the point 2 is not adopted, the pump pipe cannot be effectively constrained, so that the pump pipe cannot freely sway in the limiting hole (301), the limiting assembly cannot absorb energy, and the pump pipe cannot be effectively prevented from being separated from the steel pipe frame; if only adopt the structure of 1 st and 2, though the pump line can rock by the restraint in spacing hole (301), but the energy that the pump line rocked is great, not only leads to the pressure spring inefficacy among the spacing subassembly like this easily, strikes the swing piece easily moreover to let swing piece and vertical connecting plate rigidity impact, also can't prevent effectively like this that the pump line breaks away from the steel-pipe frame. And the 1 st to 3 rd parts are matched, the pump pipe can be reset towards the axle center of the limiting hole after being shaken in the limiting hole, and the swinging block can also be automatically reset under the action of springs on two sides, so that the pump pipe is effectively prevented from being separated from the steel pipe frame, and meanwhile, the pump pipe can be automatically reset after being vibrated, and further, the scheme forms an interaction and cooperation unified whole which can not be divided.

Further, a guide ring (2) for the pump pipe (1) to pass through is fixedly arranged on the vertical supporting plate (5) through a support, and the aperture of the inner hole of the guide ring (2) is larger than the outer diameter of the pump pipe (1).

Further, the aperture of the inner hole of the guide ring (2) is 2cm to 4cm larger than the outer diameter of the pump pipe (1).

Further, the aperture of the inner hole of the guide ring (2) is 3cm larger than the outer diameter of the pump pipe (1).

The beneficial effect of this scheme: according to the scheme, the pump pipe can swing in a limiting hole of the swinging block in a constrained manner through the limiting assembly, so that floating flexible connection is realized, and energy can be absorbed; the swinging block swings in a constrained manner under the action of the spring, and absorbs energy in the swinging process, so that the pump pipe is effectively prevented from being separated from the steel pipe frame; simultaneously, spacing subassembly in the present case can let the pump line automatic re-setting on the swing piece, and the spring can let swing piece automatic re-setting again to let the pump line for steel pipe frame automatic re-setting after suffering the vibration, just so effectively avoided prior art's defect, and this simple structure, reliable, easy to carry out.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the mounting of the cover plate and swing block of FIG. 1;

fig. 4 is a schematic limiting diagram of the cast iron ball 9 and the cover plate 12 in fig. 2 and 3.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1 to 4, a concrete pump pipe fixing structure for high-rise building construction comprises a vertical support plate 5 and a swing block 3, wherein the swing block 3 comprises a rotating part 31 and a limiting part 32, the rotating part 31 and the limiting part 32 are integrally cast, and the rotating part 31 is rotatably connected with the left side plate surface of the vertical support plate 5 through a vertical pin shaft 4, so that the swing block 3 can swing around the vertical pin shaft 4. The right side plate surface of the vertical support plate 5 is provided with a connecting buckle 6, and the vertical support plate 5 can be fixed on the steel pipe frame 13 through the connecting buckle 6. The connecting buckle 6 can be an existing steel pipe connecting buckle 6 such as a cross buckle or a direct buckle, and the connecting buckle 6 belongs to the prior art.

As shown in fig. 1, two sides of the limiting portion 32 are symmetrically provided with a tension spring 8, one end of the tension spring 8 is fixed with the vertical support plate 5, and the other end of the tension spring 8 is fixed with the outer side wall of the limiting portion 32. Also be equipped with two adjusting screw 7 simultaneously on the face of vertical support plate 5, two adjusting screw 7 respectively with two pressure spring 10 one-to-one on the vertical support plate 5, and extension spring 8 is fixed with vertical support plate 5 through an adjusting screw 7 that corresponds, two adjusting bolt 7 can accomplish the pretightning force regulation to extension spring 8, and two extension springs 8 arrange into "eight" font. In the scheme, the initial tension value and the deformation value set by the two tension springs 8 are equal, so that the swinging block 3 can be urged to be in a static state relative to the plate surface of the vertical supporting plate 5 under the tension action of the tension springs 8.

As shown in fig. 1 and 2, a limiting hole 301 vertically penetrating up and down is formed in the center of the limiting portion 32, and the aperture of the limiting hole 301 is larger than the outer diameter of the pump tube 1, so that the pump tube can rock in the limiting hole 301. As shown in fig. 2 to 4, a set of limiting grooves 302 are uniformly formed on the upper end surface of the limiting portion 32 along the circumferential direction, the limiting grooves 302 are formed along the radial direction of the limiting hole 301, the number of the limiting grooves 302 is 3 to 8, and the number of the limiting grooves 302 in this case is 3. The inner ends of the limiting grooves 302 are communicated with the limiting holes 301, and a limiting component is arranged in each limiting groove 302.

The limiting assembly comprises a cast iron ball 9, a pressure spring 10 and an adjusting bolt 11, wherein the cast iron ball 9 and the pressure spring 10 are both arranged in a limiting groove 302, the pressure spring 10 is positioned between the cast iron ball 9 and the adjusting bolt 11, and the cast iron ball 9 is in rolling fit with the groove wall of the limiting groove 302, so that the cast iron ball 9 can be ensured to linearly move along the length direction of the limiting groove 302. The adjusting bolt 11 is in threaded connection with the limiting part 32, and the tail part of the adjusting bolt 11 is abutted against the end part of the pressure spring 10. The pressure spring 10 can be pre-tightened through the bolt 11, so that on one hand, installation errors are eliminated, and on the other hand, the action points of the three cast iron balls 9 can be kept at the center of the limiting hole 301 through adjusting the bolt 11 in the using process.

As shown in fig. 3 and 4, the upper end surface of the limiting portion 32, on which the limiting groove 302 is formed, is fixedly connected with a cover plate 12, and the cover plate 12 prevents the cast iron ball 9 from falling out of the limiting groove 302. In this case, a central hole 121 for passing a pump pipe is formed in the center of the cover plate 12, and a limit ring 122 is protruded from the bottom surface of the cover plate 12 facing the limit groove 302, and the axis of the limit ring 122 is collinear with the axis of the central hole 121. The position of the bottom of the limiting ring 121 corresponding to the cast iron ball 9 is provided with a limiting notch 123, the inner end of the limiting notch 123 is small, the outer end is large, and the width of the narrowest part is smaller than the diameter of the cast iron ball 9. The limiting ring 122 is designed to allow a portion of the ball of the cast iron ball 9 to extend into the central hole, but not allow the cast iron ball 9 to fall out of the limiting groove 302.

The working principle of the scheme is as follows: the vertical support plate 5 is fixed on the steel pipe frame 13 through the connecting buckle 6, and after the swinging block 3 is rotatably connected with the vertical support plate 5 through the rotating part 31, the swinging block 3 can only swing on the vertical support plate 5. Under the tensile force of the tension spring 8 between the limiting part 32 of the swing block 3 and the vertical support plate 5, the swing block 3 in the initial state is kept in a static state relative to the vertical support plate 5, that is, the swing block 3 without external force is static and fixed on the vertical support plate 5. When the pump pipe is used, the pump pipe 1 vertically penetrates through the limiting hole 301 in the limiting part 32 from top to bottom without manual adjustment, and the pressure spring 10 extrudes the cast iron ball 9 and enables the cast iron ball 9 to tightly support the pump pipe 1. In the scheme, the number of the limiting grooves 302 arranged on the limiting part 32 is three, the three limiting grooves 302 are uniformly distributed along the circumferential direction of the limiting hole 301, and three pressure springs 10 and three cast iron balls 9 are correspondingly arranged in the three limiting grooves 302 one by one. The three cast iron balls 9 complete the abutting action of the pump pipe 1 from the same plane in three different directions.

In the scheme, the cast iron ball 9 is adopted, and on one hand, the existing pump pipe 1 is generally made of cast iron pipes. If the sphere made of other materials is adopted, the pump tube 1 cannot be compressed, or the surface of the pump tube 1 is damaged, because the spheres made of different materials have different rigidities; it is therefore necessary to use the cast iron ball 9 and to use the cast iron ball 9 as a direct contact limit for the pump pipe 1, the cast iron ball 9 being in point contact with the pump pipe 1. The point contact can enable the pump pipe 1 to shift and roll in multiple directions in the limiting hole 301, which provides a corresponding relation with uncertainty of the acting direction of the vibration force applied to the pump pipe 1, so that the pump pipe 1 is not limited by the limiting part 32 in any direction when being subjected to the vibration force, but simultaneously the vibration force can be completely transmitted to the limiting part 32, and finally the vibration force is eliminated by the tension spring 8 and the pressure spring 10.

For convenience of installation, a guide ring 2 is fixedly arranged on the vertical support plate 5, the guide ring 2 can be used for the pump pipe 1 to vertically penetrate up and down, the guide ring 2 is fixedly connected with the vertical support plate 5 through a support, the diameter of an inner hole of the guide ring 2 is slightly larger than that of the outer wall of the pump pipe 1, specifically 2 cm-4 cm, and 3cm is the best. The guide ring 2 facilitates the pump pipe 1 to be inserted into the limit hole 301 to guide the pump pipe 1, and can prevent the pump pipe 1 from damaging the swing block 3 when the pump pipe 1 suffers from large vibration force, so that the protection effect is achieved. The aperture of the guide ring 2 is larger than the outer diameter of the pump pipe 1, which belongs to the optimized specific numerical value in the using process, and the numerical value is selected to ensure that the swinging block 3 is not damaged, thereby better protecting the swinging block 3.

The beneficial effect of this scheme: the swinging block is rotatably connected with the vertical support plate 5, the pump pipe 1 is supported in an abutting mode through the cast iron ball 9, the pump pipe 1 is fixed under the combined action of the pressure spring 10 and the tension spring 8, and the pump pipe 1 is fixed on the steel pipe frame 13 through the vertical support plate 5. Swing piece 3 is connected + cast iron ball 9 and pump pipe 1 butt with vertical support plate 5's rotation and is combined together, rocks when suffering the vibration effect for pump pipe 1 and provides probably, and the vibrational force is offset the back jointly by pressure spring 10 and extension spring 8 in addition, can not cause vertical support plate 5 and steel pipe frame 13 to be connected inefficacy, and pump pipe 1 need not workman's operation and can resume to initial condition after suffering the vibration. Not only prevents the pump pipe 1 from separating from the steel pipe frame 13, but also maintains the self-recovery of the pump pipe 1 after being subjected to the vibration action. Meanwhile, the pump pipe 1 and the fixing structure thereof do not need to be adjusted, maintained and repaired in the using process, manpower and material resources are saved, the use is convenient, and the market popularization prospect is good.

The present invention is not limited to the above-described preferred embodiments, but includes all modifications, equivalents, and improvements within the spirit and scope of the present invention.

Claims

1. A concrete pump pipe fixed knot that high-rise building construction used constructs which characterized in that: comprises a vertical supporting plate (5) and a swinging block (3); the surface of the vertical supporting plate (5) is provided with a connecting buckle (6) which can be fixed on the steel pipe frame (13) (1); the swing block (3) is composed of a rotating part (31) and a limiting part (32), wherein the rotating part (31) and the connecting buckle (6) are respectively arranged on two opposite side plate surfaces of the vertical supporting plate (5), and the rotating part is rotatably connected with the connecting seat (51) of the vertical supporting plate (5) through a vertical pin shaft (4); two sides of the limiting part (32) are symmetrically provided with a tension spring (8), one end of the tension spring (8) is fixed with the vertical supporting plate (5), and the other end of the tension spring (8) is fixed with the outer wall of the limiting part (32); a limiting hole (301) for the pump pipe (1) to pass through is formed in the center of the limiting part (32) along the axial direction, and the aperture of the limiting hole is larger than the outer diameter of the pump pipe (1); a group of limiting grooves (302) are uniformly distributed on the upper end surface of the limiting part (32) along the circumferential direction, the limiting grooves (302) are formed along the radial direction of the limiting hole (301), the inner ends of the limiting grooves are communicated with the limiting hole (301), and a limiting component is arranged in each limiting groove (302); the limiting assembly comprises a cast iron ball (9) and an adjusting bolt (11), wherein the cast iron ball (9) and a pressure spring (10) are both arranged in a limiting groove (302), the pressure spring (10) is positioned between the cast iron ball (9) and the adjusting bolt (11), and the cast iron ball (9) is in rolling fit with the groove wall of the limiting groove (302); the adjusting bolt (11) is in threaded connection with the limiting part (32), and the tail part of the adjusting bolt (11) is abutted against the end part of the pressure spring (10); the upper end face of the limiting part (32) provided with the limiting groove (302) is fixedly connected with a cover plate (12) which is used for preventing the cast iron ball (9) from falling out of the limiting groove (302).

2. The concrete pump pipe fixing structure for high-rise building construction according to claim 1, wherein: the vertical supporting plate (5) is fixedly provided with a guide ring (2) for the pump pipe (1) to pass through a support, and the aperture of the inner hole of the guide ring (2) is larger than the outer diameter of the pump pipe (1).

3. The concrete pump pipe fixing structure for high-rise building construction according to claim 2, wherein: the aperture of the inner hole of the guide ring (2) is 2cm to 4cm larger than the outer diameter of the pump pipe (1).

4. The concrete pump pipe fixing structure for high-rise building construction according to claim 2, wherein: the aperture of the inner hole of the guide ring (2) is 3cm larger than the outer diameter of the pump pipe (1).