WO2006101320A1 - Tip connecting apparatus for concrete discharge hose in a concrete pump car - Google Patents

Tip connecting apparatus for concrete discharge hose in a concrete pump car Download PDF

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Publication number
WO2006101320A1
WO2006101320A1 PCT/KR2006/000978 KR2006000978W WO2006101320A1 WO 2006101320 A1 WO2006101320 A1 WO 2006101320A1 KR 2006000978 W KR2006000978 W KR 2006000978W WO 2006101320 A1 WO2006101320 A1 WO 2006101320A1
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WO
WIPO (PCT)
Prior art keywords
concrete
hose
tip
mixture
concrete discharge
Prior art date
Application number
PCT/KR2006/000978
Other languages
French (fr)
Inventor
Seog Jae Jang
Original Assignee
Seog Jae Jang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seog Jae Jang filed Critical Seog Jae Jang
Publication of WO2006101320A1 publication Critical patent/WO2006101320A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0472—Details of connection of the hose to the formwork, e.g. inlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/02—Hose-clips
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G2021/049—Devices for both conveying and distributing concrete mixing nozzles specially adapted for conveying devices

Definitions

  • TITLE TIP CONNECTING APPARATUS FOR CONCRETE
  • the present invention concerns a tip connecting apparatus for concrete discharge hoses.
  • the said apparatus In conveying the mixed concrete material from the concrete pump car to the construction field via a concrete discharge hose, the said apparatus, connected to the tip of the hose, reduces the shock to the discharged material and reduce the rate if discharging. Its funnel-like structure also gathers the concrete material into one point, thereby minimizing the segregation effect that may take place during conveying the concrete material via the hose.
  • the present invention concerns a tip connecting apparatus for concrete discharge hoses.
  • the said apparatus In conveying the mixed concrete material from the concrete pump car to the construction field via a concrete discharge hose, the said apparatus, connected to the tip of the hose, reduces the shock to the discharged material and reduce the rate if discharging. Its funnel-like structure also gathers the concrete material into one point, thereby minimizing the segregation effect that may take place during conveying the concrete material via the hose.
  • concrete mixture needed for construction of concrete structures is delivered to the construction field from the pump car that has transported the concrete mixture.
  • the concrete mixture is transported via a steel pipe and discharged onto the exact site via a concrete discharge hose attached to the steel pipe.
  • the flexible nature of the hose makes it easier to move the concrete mixture around.
  • the hose connected in perpendicular to the steel pipe is not so much subject to the pressure exerted along the axis by the piston of the pump car, and it does not the fluid in continuous flow.
  • the concrete mixture due to the weight and fluidity of the concrete mixture as well as the difference between aggregate and fine aggregate in terms of sizes, the concrete mixture randomly and undesirably falls from the discharge hose and its opening.
  • the segregation effect occurs in which homogeneity of the concrete mixture is lost before the concrete material is delivered to the steel reinforcement or the mould.
  • the segregation effect has bad impacts on the strength, capacity against hydraulic pressure, durability, and outer appearance of the resulting concrete structure, resulting in a decrease in the stability and lifespan of the structure. Hence, the maintenance cost of such structures significantly rises.
  • the present invention was developed in order to overcome such problems stated above. It is installed at the mouth of the concrete discharge hose connected to the concrete pump car in order to reduce the shock to the material being discharged via the pipe and the rate of such discharge. Its funnel-like structure also gathers the concrete material into one point, thereby minimizing the segregation effect that may take place during conveyance of the concrete material via the hose.
  • the tip connecting apparatus for concrete discharge hoses in concrete pump cars reduces the shock and speed of the concrete mixture being discharged into the cylindrical body part installed at the tip of the hose over two phases. Its funnel-like structure, with a wide mouth and a small exit is equipped with a pair of semi-circular disks that induce the flow of the concrete mixture into one direction. This function decreases the segregation effect, increasing the overall quality of the resulting concrete structure.
  • the apparatus also serves to prevent damages to the facilities around the construction site (e.g. PVC pipes) as well as relaxation of the steel reinforcement connecting lines. It also contributes to increasing precision of the construction as well as safety of the workers.
  • Figure 1 is the slanted view of the outer appearance of the tip connecting apparatus for concrete discharge hoses in concrete pump cars.
  • Figure 2 is the profile of the tip connecting apparatus for concrete discharge hoses in concrete pump cars.
  • Figure 3 is the cutting plane of Figure 2 along the A-A line.
  • Figure 4 is a drawing that shows another example of usage of the tip connecting apparatus for concrete discharge hoses in concrete pump cars.
  • Figure 5 is a drawing that shows an example of attaching a movable handle to the tip connecting apparatus for concrete discharge hoses in concrete pump cars.
  • Figure 6 is a drawing that shows the structure of the movable handle for the tip connecting apparatus for concrete discharge hoses in concrete pump cars.
  • the tip connecting apparatus for concrete discharge hoses of this invention developed to achieve the objectives stated above is a device that reduces shock and falling speed of the concrete mixture transported and discharged via a concrete discharge hose. It also brings much more ease to the concrete construction field by gathering the mixture into one point with its funnel-like structure.
  • It consists of a cylindrical main body part that guides the concrete mixture discharged from the tip of the hose to the right site of usage; a pair of semi-circular disks that, formed symmetrically with declining slant of certain angles, reduces the shock and falling speed of the concrete mixture being discharged from above over two stages and gathers the mixture into one point; and a clamp band that secures the combination of the cylindrical main body and the hose in order to ensure stability of the overall structure.
  • Figures 1 to 3 illustrate the tip connecting apparatus for concrete discharge hoses.
  • Figure 1 is a slanted view of the outer appearance of the invention;
  • Figure 2 is the profile of the invention;
  • Figure 3 is the cutting plane of the invention along the A-A line of Figure 2.
  • Figures 1 to 3 show that the tip connecting apparatus for concrete discharge hoses of this invention is a device that reduces shock and falling speed of the concrete mixture transported and discharged via a concrete discharge hose. It also brings much more ease to the concrete construction field by gathering the mixture into one point with its funnel-like structure. It consists of a cylindrical main body part (110); a pair of semi-circular disks (122, 124); and a clamp band (130).
  • the said cylindrical main body part (110) of the apparatus is connected to the outer tip of the concrete discharge hose (101) in a way that the hose is inserted into the apparatus. It receives the concrete mixture from the tip of the concrete discharge hose (101) and guides the mixture to the actual spot of usage and discharges it.
  • uneven incision grooves (110h) are formed around certain part where the hose (101) and the cylindrical main body (110) meet.
  • a protruding stumbling block (110t) is formed around the inner circumference of the cylindrical main body (110).
  • the cylindrical main body (110) may be made up of any general resins with sufficient strength to withstand the shock and force exerted by the concrete mixture falling from the hose. Thus, hard plastic materials are recommended.
  • the Reference No. 102 in Figures 1 and 2 represent a coupling band used to facilitate the connection between the concrete discharge hose (101) and the cylindrical main body (110).
  • the aforementioned semi-circular disks (122, 124) are installed inside the cylindrical main body (110) along its longitude.
  • the disks are formed in mutual symmetry with a declining slant toward the horizontal surface. They reduce the shock and falling speed of the concrete mixture over two stages and gather the mixture into one direction.
  • the semi-circular disks (122, 124) should satisfy the crucial requirements that they reduce the shock and falling speed of the concrete mixture significantly and that they avoid causing any blocking effect due to sudden accumulation of the mixture.
  • the distance between the lower end of the tip of the concrete discharge hose (101) and the first semi-circular disk (122) and the distance between the first semi-circular disk (122) and the second one (124) should be greater than the radius of the cylindrical main body (110). This rule must be kept in order to reduce the shock and falling speed of the concrete mixture being discharged and to avoid blocking by the accumulation of the mixture.
  • inside the disks (122, 124) should be supplementary steel wires (122s, 124s). And, inside the main body (110) where the body (110) and the disks (122, 124) come in contact with each other should be supplementary steel sheets (122p, 124p) in order to enhance overall durability of the disks.
  • the incision surface parts (122c, 124c) be installed in order to open up toward below due to the increase in the amount of concrete mixture being discharged and facilitate the downward movement of the mixture.
  • the primary reason for installing these incision surface parts (122c, 124c) is to minimize or prevent the plugging effect due to the increase in the discharging speed of the concrete mixture.
  • the semi-circular disks (122, 124) may be made up of any general resins that can absorb the shock exerted by the falling concrete mixture and have some degrees of flexibility.
  • the aforementioned clamp band (130), made up of soft plastic materials preferably, is installed around the part where the cylindrical main body (110) and the concrete discharge hose (101) come in contact like a ribbon to stabilize the connection of the cylindrical main body (110) and the hose (101).
  • multiple clamp band loops (13Og) may be formed in the upper part of the cylindrical main body (!10) around the clamp band (130).
  • Figure 4 is a drawing that illustrates another example of using the tip- connecting apparatus for concrete discharge hose.
  • Figure 4 shows the identical structural components featured in the example of usage of the apparatus illustrated in Figure 2. The only difference between the two examples is the diameter of the lower part of the cylindrical main body (110) that is greater than that of Figure 2.
  • the tip- connecting apparatus of this invention may be designed and made greater around the lower diameter of the cylindrical main body (110).
  • the cross section of the passageway for the concrete mixture increases relatively from the cross section featured in Figure 2. Therefore, in a case like the example of Figure 4, there is no need to install incision surface parts (122c, 124c) on the semi-circular disks (122, 124).
  • Figure 5 shows when a movable handle for concrete discharge hoses is added to the tip-connecting apparatus for concrete discharge hoses.
  • a movable handle for the concrete discharge hose (500) may be added to the tip-connecting apparatus for the concrete discharge hose in order to facilitate the movements of the hose (101).
  • the movable handle for concrete discharge hoses (500) added the worker will feel much easier to move the concrete discharge hose (101) around in carrying out the construction work at the field.
  • FIG 6 is a drawing that illustrates the structure of the movable handle for concrete discharge hoses (500).
  • the handle (500) consists of a clamping part for the concrete discharge hose (510) that is installed around the outer circumference of the hose (101); the U-shaped handles (520) around both sides of the clamping part (510); and a safety bolt (530) for the clamping part that contracts and releases the hose clamping part (510), installed around the clamping part (510).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The tip connecting apparatus for concrete discharge hoses of this invention developed to achieve the objectives stated above is a device that reduces shock and falling speed of the concrete mixture transported and discharged via a concrete discharge hose. It also brings much more ease to the concrete construction field by gathering the mixture into one point with its funnel-like structure. It consists of a cylindrical main body part that guides the concrete mixture discharged from the tip of the hose to the right site of usage; a pair of semi-circular disks that, formed symmetrically with declining slant of certain angles, reduces the shock and falling speed of the concrete mixture being discharged from above over two stages and gathers the mixture into one point; and a clamp band that secures the combination of the cylindrical main body and the hose in order to ensure stability of the overall structure. The apparatus also serves to prevent damages to the facilities around the construction site (e.g. PVC pipes) as well as relaxation of the steel reinforcement connecting lines. It also contributes to increasing precision of the construction as well as safety of the workers.

Description

TITLE: TIP CONNECTING APPARATUS FOR CONCRETE
DISCHARGE HOSE IN A CONCRETE PUMP CAR
Technical Field
The present invention concerns a tip connecting apparatus for concrete discharge hoses. In conveying the mixed concrete material from the concrete pump car to the construction field via a concrete discharge hose, the said apparatus, connected to the tip of the hose, reduces the shock to the discharged material and reduce the rate if discharging. Its funnel-like structure also gathers the concrete material into one point, thereby minimizing the segregation effect that may take place during conveying the concrete material via the hose.
Background Art
The present invention concerns a tip connecting apparatus for concrete discharge hoses. In conveying the mixed concrete material from the concrete pump car to the construction field via a concrete discharge hose, the said apparatus, connected to the tip of the hose, reduces the shock to the discharged material and reduce the rate if discharging. Its funnel-like structure also gathers the concrete material into one point, thereby minimizing the segregation effect that may take place during conveying the concrete material via the hose.
In general, concrete mixture needed for construction of concrete structures is delivered to the construction field from the pump car that has transported the concrete mixture. The concrete mixture is transported via a steel pipe and discharged onto the exact site via a concrete discharge hose attached to the steel pipe. The flexible nature of the hose makes it easier to move the concrete mixture around. However, the hose connected in perpendicular to the steel pipe is not so much subject to the pressure exerted along the axis by the piston of the pump car, and it does not the fluid in continuous flow. In addition, due to the weight and fluidity of the concrete mixture as well as the difference between aggregate and fine aggregate in terms of sizes, the concrete mixture randomly and undesirably falls from the discharge hose and its opening. Thus, the segregation effect occurs in which homogeneity of the concrete mixture is lost before the concrete material is delivered to the steel reinforcement or the mould.
The segregation effect has bad impacts on the strength, capacity against hydraulic pressure, durability, and outer appearance of the resulting concrete structure, resulting in a decrease in the stability and lifespan of the structure. Hence, the maintenance cost of such structures significantly rises.
Disclosure of Invention
The present invention was developed in order to overcome such problems stated above. It is installed at the mouth of the concrete discharge hose connected to the concrete pump car in order to reduce the shock to the material being discharged via the pipe and the rate of such discharge. Its funnel-like structure also gathers the concrete material into one point, thereby minimizing the segregation effect that may take place during conveyance of the concrete material via the hose.
Effects of the Invention
The tip connecting apparatus for concrete discharge hoses in concrete pump cars reduces the shock and speed of the concrete mixture being discharged into the cylindrical body part installed at the tip of the hose over two phases. Its funnel-like structure, with a wide mouth and a small exit is equipped with a pair of semi-circular disks that induce the flow of the concrete mixture into one direction. This function decreases the segregation effect, increasing the overall quality of the resulting concrete structure. The apparatus also serves to prevent damages to the facilities around the construction site (e.g. PVC pipes) as well as relaxation of the steel reinforcement connecting lines. It also contributes to increasing precision of the construction as well as safety of the workers.
Brief Descriptions of the Drawings
Figure 1 is the slanted view of the outer appearance of the tip connecting apparatus for concrete discharge hoses in concrete pump cars. Figure 2 is the profile of the tip connecting apparatus for concrete discharge hoses in concrete pump cars.
Figure 3 is the cutting plane of Figure 2 along the A-A line.
Figure 4 is a drawing that shows another example of usage of the tip connecting apparatus for concrete discharge hoses in concrete pump cars.
Figure 5 is a drawing that shows an example of attaching a movable handle to the tip connecting apparatus for concrete discharge hoses in concrete pump cars.
Figure 6 is a drawing that shows the structure of the movable handle for the tip connecting apparatus for concrete discharge hoses in concrete pump cars.
description of the Symbols for the Main Parts of the Drawings>
101... concrete discharge hose 102...coupling band
110... main body part 11 Oh... uneven incision groove
11 Ot... stumbling block 122, 124... semi-circular disks
122c, 124c...the incision surface part 122p, 124p supplementary steel sheet
122s, 124s... supplementary steel wire 130...clamp band
13Og...clamp band loop 500...movable handle
510...clamping part 520...handle part
530... safety bolt for the clamping part
Best Modes of Carrying Out the Invention The tip connecting apparatus for concrete discharge hoses of this invention developed to achieve the objectives stated above is a device that reduces shock and falling speed of the concrete mixture transported and discharged via a concrete discharge hose. It also brings much more ease to the concrete construction field by gathering the mixture into one point with its funnel-like structure. It consists of a cylindrical main body part that guides the concrete mixture discharged from the tip of the hose to the right site of usage; a pair of semi-circular disks that, formed symmetrically with declining slant of certain angles, reduces the shock and falling speed of the concrete mixture being discharged from above over two stages and gathers the mixture into one point; and a clamp band that secures the combination of the cylindrical main body and the hose in order to ensure stability of the overall structure.
The examples of usage of the present invention are discussed in the following paragraphs with references to the figures enclosed on the back pages.
Figures 1 to 3 illustrate the tip connecting apparatus for concrete discharge hoses. Figure 1 is a slanted view of the outer appearance of the invention; Figure 2 is the profile of the invention; Figure 3 is the cutting plane of the invention along the A-A line of Figure 2.
Figures 1 to 3 show that the tip connecting apparatus for concrete discharge hoses of this invention is a device that reduces shock and falling speed of the concrete mixture transported and discharged via a concrete discharge hose. It also brings much more ease to the concrete construction field by gathering the mixture into one point with its funnel-like structure. It consists of a cylindrical main body part (110); a pair of semi-circular disks (122, 124); and a clamp band (130).
The said cylindrical main body part (110) of the apparatus is connected to the outer tip of the concrete discharge hose (101) in a way that the hose is inserted into the apparatus. It receives the concrete mixture from the tip of the concrete discharge hose (101) and guides the mixture to the actual spot of usage and discharges it. Here, in order to ensure stability and tightness of the part where the hose (101) and the main body (110) are connected to each other and to facilitate the security of the clamp band (130) by a bolt (130b), uneven incision grooves (110h) are formed around certain part where the hose (101) and the cylindrical main body (110) meet.
In addition, in order to limit the depth of insertion by the concrete discharge hose (101) into the cylindrical main body (110) and ensure security of the structure, a protruding stumbling block (110t) is formed around the inner circumference of the cylindrical main body (110). The cylindrical main body (110) may be made up of any general resins with sufficient strength to withstand the shock and force exerted by the concrete mixture falling from the hose. Thus, hard plastic materials are recommended. The Reference No. 102 in Figures 1 and 2 represent a coupling band used to facilitate the connection between the concrete discharge hose (101) and the cylindrical main body (110).
The aforementioned semi-circular disks (122, 124) are installed inside the cylindrical main body (110) along its longitude. The disks are formed in mutual symmetry with a declining slant toward the horizontal surface. They reduce the shock and falling speed of the concrete mixture over two stages and gather the mixture into one direction. Here, the semi-circular disks (122, 124) should satisfy the crucial requirements that they reduce the shock and falling speed of the concrete mixture significantly and that they avoid causing any blocking effect due to sudden accumulation of the mixture. In order to satisfy such requirements, the angle of the slants of the disks (122, 124) is crucial: the angle of slant (θ) should have a value that is less than the ratio of the horizontal length of the disks (h): vertical length (v) = 2:1.
Furthermore, in installing the semi-circular disks (122, 124) along the longitude of the cylindrical main body (110), the distance between the lower end of the tip of the concrete discharge hose (101) and the first semi-circular disk (122) and the distance between the first semi-circular disk (122) and the second one (124) should be greater than the radius of the cylindrical main body (110). This rule must be kept in order to reduce the shock and falling speed of the concrete mixture being discharged and to avoid blocking by the accumulation of the mixture.
Moreover, in order to prevent the semi-circular disks (122, 124) to be damaged by collision with the concrete mixture, inside the disks (122, 124) should be supplementary steel wires (122s, 124s). And, inside the main body (110) where the body (110) and the disks (122, 124) come in contact with each other should be supplementary steel sheets (122p, 124p) in order to enhance overall durability of the disks.
In addition, around the central part of the semi-circular disks (122) should the incision surface parts (122c, 124c) be installed in order to open up toward below due to the increase in the amount of concrete mixture being discharged and facilitate the downward movement of the mixture. The primary reason for installing these incision surface parts (122c, 124c) is to minimize or prevent the plugging effect due to the increase in the discharging speed of the concrete mixture.
The semi-circular disks (122, 124) may be made up of any general resins that can absorb the shock exerted by the falling concrete mixture and have some degrees of flexibility. The aforementioned clamp band (130), made up of soft plastic materials preferably, is installed around the part where the cylindrical main body (110) and the concrete discharge hose (101) come in contact like a ribbon to stabilize the connection of the cylindrical main body (110) and the hose (101). In order to further ensure security of the clamp band (130), multiple clamp band loops (13Og) may be formed in the upper part of the cylindrical main body (!10) around the clamp band (130).
Figure 4 is a drawing that illustrates another example of using the tip- connecting apparatus for concrete discharge hose.
Figure 4 shows the identical structural components featured in the example of usage of the apparatus illustrated in Figure 2. The only difference between the two examples is the diameter of the lower part of the cylindrical main body (110) that is greater than that of Figure 2. This shows that the tip- connecting apparatus of this invention may be designed and made greater around the lower diameter of the cylindrical main body (110). In this case, the cross section of the passageway for the concrete mixture increases relatively from the cross section featured in Figure 2. Therefore, in a case like the example of Figure 4, there is no need to install incision surface parts (122c, 124c) on the semi-circular disks (122, 124). Figure 5 shows when a movable handle for concrete discharge hoses is added to the tip-connecting apparatus for concrete discharge hoses.
As shown in Figure 5, a movable handle for the concrete discharge hose (500) may be added to the tip-connecting apparatus for the concrete discharge hose in order to facilitate the movements of the hose (101). With the movable handle for concrete discharge hoses (500) added, the worker will feel much easier to move the concrete discharge hose (101) around in carrying out the construction work at the field.
Figure 6 is a drawing that illustrates the structure of the movable handle for concrete discharge hoses (500). The handle (500) consists of a clamping part for the concrete discharge hose (510) that is installed around the outer circumference of the hose (101); the U-shaped handles (520) around both sides of the clamping part (510); and a safety bolt (530) for the clamping part that contracts and releases the hose clamping part (510), installed around the clamping part (510).

Claims

Claims;
1. A tip-connecting apparatus for concrete discharge that reduces shock and falling speed of the concrete mixture transported and discharged via a concrete discharge hose, while also gathering the mixture into one point with its funnel-like structure and that is characterized by consisting of: a cylindrical main body part that guides the concrete mixture discharged from the tip of the hose to the right site of usage; a pair of semi-circular disks that, formed symmetrically with declining slant of certain angles, reduces the shock and falling speed of the concrete mixture being discharged from above over two stages and gathers the mixture into one point; and a clamp band that secures the combination of the cylindrical main body and the hose in order to ensure stability of the overall structure.
2. A tip-connecting apparatus for concrete discharge that is characterized by having uneven incision grooves (11Oh) formed around certain part where the hose (101) and the cylindrical main body (110) meet as in Claim 1 in order to ensure stability and tightness of the part where the hose (101) and the main body (110) are connected to each other and to facilitate the security of the clamp band (130) by a bolt (130b)
3. A tip-connecting apparatus for concrete discharge that is characterized by having a protruding stumbling block (110t) formed around the inner circumference of the cylindrical main body (110) in order to limit the depth of insertion by the concrete discharge hose (101) into the cylindrical main body (110) and ensure security of the structure as in Claim 1.
4. A tip-connecting apparatus for concrete discharge that is characterized by having an angle of slant (θ) of the semi-circular disks as in Claim 1 that should have a value that is less than the ratio of the horizontal length of the disks (h): vertical length (v) = 2:1.
5. A tip-connecting apparatus for concrete discharge that is characterized by having the distance between the lower end of the tip of the concrete discharge hose (101) and the first semi-circular disk (122) and the distance between the first semi-circular disk (122) and the second one (124) that are greater than the radius of the cylindrical main body (110) as in Claim 1.
6. A tip-connecting apparatus for concrete discharge as in Claim 1 that is characterized by having inside the disks (122, 124) supplementary steel wires (122s, 124s), and, inside the main body (110) where the body (110) and the disks (122, 124) come in contact with each other supplementary steel sheets (122p, 124p) in order to prevent the semicircular disks (122, 124) to be damaged by collision with the concrete mixture and to enhance overall durability of the disks.
7. A tip-connecting apparatus for concrete discharge as in Claim 1 that is characterized by having around the central part of the semi-circular disks (122) the incision surface parts (122c, 124c) installed in order to open up toward below due to the increase in the amount of concrete mixture being discharged and facilitate the downward movement of the mixture.
8. A tip-connecting apparatus for concrete discharge as in Claim 1 that is characterized by having multiple clamp band loops (13Og) formed in the upper part of the cylindrical main body (110) around the clamp band (130) in order to further ensure security of the clamp band (130)
9. A tip-connecting apparatus for concrete discharge as in Claim 1 that is characterized by having a movable handle for the concrete discharge hose (500) that may be added to the tip-connecting apparatus for the concrete discharge hose in order to facilitate the movements of the hose (101)
10. As in Claim 9, a tip-connecting apparatus for concrete discharge that is characterized by having a movable handle consisting of: a clamping part for the concrete discharge hose (510) that is installed around the outer circumference of the hose (101); the U-shaped handles (520) around both sides of the clamping part (510); and a safety bolt (530) for the clamping part that contracts and releases the hose clamping part (510), installed around the clamping part (510).
PCT/KR2006/000978 2005-03-19 2006-03-17 Tip connecting apparatus for concrete discharge hose in a concrete pump car WO2006101320A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2005-0022926 2005-03-19
KR1020050022926A KR100618318B1 (en) 2005-03-19 2005-03-19 Tip connecting apparatus for concrete discharge hose in a concrete pump car

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WO2006101320A1 true WO2006101320A1 (en) 2006-09-28

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WO (1) WO2006101320A1 (en)

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NL2017756B1 (en) * 2016-07-08 2018-01-15 Faber Betonpompen B V Fall inhibitor for pouring concrete, provided with a concrete hose and method thereof
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AT524779A4 (en) * 2021-02-15 2022-09-15 Alba Tooling & Eng Gmbh Method for forming an end piece on a delivery hose for delivering concrete and device for discharging concrete

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CN104912079B (en) * 2015-05-08 2017-01-18 广东水电二局股份有限公司 Adjustable type anti-separating device and concrete feeding method based on the same
CN110748164A (en) * 2019-07-15 2020-02-04 中交第四公路工程局有限公司 Assembled light steel pipe pouring funnel device with replaceable screen and manufacturing method
KR102411168B1 (en) 2020-04-21 2022-06-17 현대건설(주) Apparatus for discharging concrete and a pump car comprising the apparatus
CN113309291B (en) * 2021-06-07 2022-03-29 浙江高盛钢结构有限公司 Steel structure support column filled with concrete
KR102339928B1 (en) * 2021-07-05 2021-12-15 노상철 Concrete mixture for decelerating placing in concrete pump car
KR102583824B1 (en) * 2021-10-19 2023-10-05 주식회사 삼표산업 Box-type CFT column with high-strength self-compacting concrete guide plate to reduce material separation and manufacturing method thereof
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CN103015727A (en) * 2012-12-10 2013-04-03 三一重工股份有限公司 Concrete conveying pipe storage and transportation device and concrete pumping equipment
CN103015727B (en) * 2012-12-10 2015-12-30 三一汽车制造有限公司 Elephant trunk storage and transportation apparatus and concrete pumping equipment
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CN112095610A (en) * 2020-11-18 2020-12-18 上海建工一建集团有限公司 Method for pouring bottom plate by using waste dewatering well as string barrel
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