CN114658226B - Anti-swing device for end hose of concrete pump truck and application method thereof - Google Patents
Anti-swing device for end hose of concrete pump truck and application method thereof Download PDFInfo
- Publication number
- CN114658226B CN114658226B CN202210369656.5A CN202210369656A CN114658226B CN 114658226 B CN114658226 B CN 114658226B CN 202210369656 A CN202210369656 A CN 202210369656A CN 114658226 B CN114658226 B CN 114658226B
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- end hose
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- speed
- tail end
- concrete
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- 238000000034 method Methods 0.000 title description 15
- 238000007664 blowing Methods 0.000 claims abstract description 63
- 230000004044 response Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 230000001133 acceleration Effects 0.000 claims description 22
- 238000013016 damping Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 238000005273 aeration Methods 0.000 claims description 3
- 230000008961 swelling Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- E04G21/0418—Devices for both conveying and distributing with distribution hose
-
- 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
- E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a concrete pump truck end hose anti-swing device, comprising: a main controller; the main controller comprises a pre-inflation control unit, a first air blowing speed obtaining unit, a first air inflation control unit and a feed inlet switching control unit, wherein the pre-inflation control unit is used for closing the feed inlet, opening the air inlet and controlling the air blower to blow air to the tail end hose to enable the tail end hose to bulge before concrete is introduced into the main controller; the first air blast speed obtaining unit is used for obtaining the first air blast speed of the air blower according to the outlet area of the material conveying pipe and the material conveying speed of the concrete pump truck; a first inflation control unit for controlling the blower to blow air at a first blowing speed toward the end hose in response to the end hose being completely inflated; and the feed inlet switching control unit is used for responding to the discharge of the conveying pipe of the concrete pump truck, closing the air inlet and opening the feed inlet so that the concrete in the conveying pipe enters the tail end hose. The invention can effectively reduce the swinging of the tail end hose.
Description
Technical Field
The invention relates to the field of concrete pump trucks, in particular to a device for preventing a hose at the tail end of a concrete pump truck from swinging.
Background
The concrete pump truck is also called a pump truck, and is a machine for continuously conveying concrete along a pipeline by utilizing pressure, and mainly comprises a pump body and a conveying pipe, so that the power of an engine can be transmitted to the pump body, and then the concrete is conveyed to a certain height and distance by utilizing a distributing rod and the conveying pipe on the pump truck.
In order to conveniently control the outlet position of the feed conveyor pipe, it is usual to provide the end of the feed conveyor pipe with an end hose made of a material having a suitable deformability; and the feed inlet of the tail end hose is communicated with the tail end of the concrete conveying pipe, and the discharge outlet is used for discharging concrete. When the concrete is continuously poured, operators can drag the tail end hose, and the discharge hole of the tail end hose is controlled to reach a preset pouring position in a proper construction range, so that the adaptability and the accuracy of concrete distribution are improved.
The end hose is dangerous in that concrete is easily sprayed suddenly during use, the hose is easily swung, and the end hose is the closest part to the working surface and the worker, so that the surrounding worker is easily injured.
Disclosure of Invention
The research of the applicant shows that: when the end hose is just filled with concrete, the pressure on the inner wall of the hose is uneven and a reaction force is generated because the end hose is flat. In this case, the end hose swings, and the end hose is the closest to the work surface and the worker, which is likely to hurt the surrounding worker.
In view of the above-mentioned drawbacks of the prior art, the present invention is to provide an anti-swing device for a hose at the end of a concrete pump truck.
In order to achieve the above purpose, the invention discloses a concrete pump truck end hose anti-swing device, comprising: the tail end hose comprises a feed inlet, an air inlet and a discharge outlet, valves are arranged on the feed inlet, the air inlet and the discharge outlet, the feed inlet is connected with a delivery pipe outlet of the concrete pump truck, and the air inlet is connected with a blower;
further comprises: a main controller; the main controller comprises a pre-charging control unit, a first air blowing speed obtaining unit, a first charging control unit and a feed inlet switching control unit
The pre-aeration control unit is used for closing the feed inlet, opening the air inlet and controlling the air blower to blow the tail end hose to swell the tail end hose before the concrete is introduced; wherein, the blowing speed of the blower is increased from small to large according to the preset acceleration;
the first air blast speed obtaining unit is used for obtaining the first air blast speed of the air blower according to the outlet area of the material conveying pipe and the material conveying speed of the concrete pump truck;
the first inflation control unit is used for controlling the blower to blow air to the end hose at the first blowing speed in response to the end hose being completely inflated;
the feed inlet switching control unit is used for responding to the discharge of the conveying pipe of the concrete pump truck, closing the air inlet and opening the feed inlet so that concrete in the conveying pipe enters the tail end hose.
Optionally, the main controller further includes: a discharge port valve control unit;
the discharge port valve control unit is used for closing the discharge port to increase the swelling speed of the tail end hose in response to the start of blowing air to the tail end hose by the air blower; and opening the outlet in response to the end hose fully bulging.
Optionally, the pre-inflation control unit includes: a blowing acceleration determination subunit and a blowing subunit;
the blast acceleration determining subunit is used for determining a first acceleration of blast according to the bulge speed and the air outlet speed of the tail end hose; the first acceleration ensures that the air inlet speed of the tail end hose is higher than the air outlet speed, and the air blowing speed is increased from small to large so as to prevent the tail end hose from swinging due to the fact that air flow suddenly enters the tail end hose;
and the blowing subunit is used for controlling the blower to increase the blowing speed according to the first acceleration and blowing the end hose.
Optionally, the first blowing speed obtaining unit includes: a concrete flow rate determination subunit and a first blowing speed determination subunit;
the concrete flow determining subunit is used for determining the concrete flow according to the outlet area of the delivery pipe and the delivery speed of the concrete pump truck;
the first air blast speed determining subunit is used for obtaining the first air blast speed according to the concrete flow and the air outlet area of the air blower.
Optionally, the method further comprises:
and an elastic rope net is arranged from the feeding hole to the discharging hole of the tail end hose, and the elastic rope net wraps the outer wall of the tail end hose.
Optionally, the method further comprises:
the outer wall of the tail end hose is uniformly provided with a fixer, one side of the fixer facing the outer side is provided with a ground nail, and the ground nail is used for being nailed into the ground to prevent the tail end hose from swinging.
Optionally, the fixer further includes: a damping spring;
the damping springs are symmetrically arranged on two sides of the ground nail and used for preventing the ground nail from falling off from the ground due to the swing influence of the tail end hose.
The invention has the beneficial effects that: 1. the tail end hose comprises a feed inlet, an air inlet and a discharge outlet, valves are arranged on the feed inlet, the air inlet and the discharge outlet, the feed inlet is connected with a delivery pipe outlet of a concrete pump truck, and the air inlet is connected with a blower. Before concrete is introduced, the feed inlet is closed, the air inlet is opened, and the blower is controlled to blow air to the tail end hose so as to enable the tail end hose to bulge; wherein the blowing speed of the blower increases from small to large according to the preset acceleration. According to the invention, ventilation is performed before the tail end hose is filled with concrete, so that the tail end hose is blown up, the swing phenomenon caused by uneven pressure on the inner wall of the tail end hose due to the fact that the tail end hose is flat when the concrete is just filled is avoided, and the swing of the tail end hose due to the fact that the blowing speed of the tail end hose is increased gradually is avoided. 2. According to the invention, a first blowing speed of a blower is obtained according to the outlet area of a material conveying pipe and the material conveying speed of a concrete pump truck; in response to the end hose fully bulging, the blower is controlled to blow air at a first blowing speed toward the end hose. According to the invention, the blowing speed is controlled according to the conveying speed of the concrete, so that the swing of a conveying hose caused by overlarge pressure difference during the switching between blowing and conveying is avoided. 3. The present invention closes the discharge port to raise the end hose bulge speed in response to the blower beginning to blow air into the end hose. Closing the discharge port allows the air blown by the blower to remain in the end hose to accelerate the end hose blowing efficiency. 4. According to the invention, the outer wall of the tail end hose is wrapped by the elastic rope net, so that the tail end hose is prevented from being cracked. 5. According to the invention, the retainers are uniformly arranged on the outer wall of the tail end hose, the side, facing the outer side, of each retainer is provided with the ground nail, and the ground nail is used for being nailed into the ground to prevent the tail end hose from swinging, so that the tail end hose is further prevented from swinging. In summary, the end hose is inflated by blowing air before the end hose is inflated with concrete, so that the swing phenomenon caused by uneven stress of the end hose due to sudden inflation of concrete into the flat end hose can be effectively reduced, and the safety problem caused by swing of the end hose by constructors is further reduced.
Drawings
Fig. 1 is a schematic structural diagram of a main controller of an anti-swing device for a hose at the tail end of a concrete pump truck according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an anti-swing device for a hose at the end of a concrete pump truck according to a first embodiment of the present invention.
Detailed Description
The invention discloses an anti-swing device for a hose at the tail end of a concrete pump truck, and a person skilled in the art can refer to the content of the text and properly improve the technical details. It is expressly noted that all such similar substitutions and modifications will be apparent to those skilled in the art, and are deemed to be included in the present invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those skilled in the relevant art that variations and modifications can be made in the methods and applications described herein, and in the practice and application of the techniques of this invention, without departing from the spirit or scope of the invention.
The research of the applicant shows that: when the end hose is just filled with concrete, the pressure on the inner wall of the hose is uneven and a reaction force is generated because the end hose is flat. In this case, the end hose swings, and the end hose is the closest to the work surface and the worker, which is likely to hurt the surrounding worker.
Accordingly, the embodiment of the present invention discloses an anti-swing device for a hose 201 at the end of a concrete pump truck, as shown in fig. 2, comprising: the end hose 201, the end hose 201 includes feed inlet 202, air inlet 203 and discharge gate 204, all is provided with the valve on feed inlet 202, air inlet 203 and the discharge gate 204, and feed inlet 202 is connected with the conveying pipeline export of concrete pump truck, and air inlet 203 is connected with air-blower 205.
As shown in fig. 1, further includes: a main controller; the main controller comprises a pre-charging control unit 101, a first air blast speed obtaining unit 102, a first charging control unit 103 and a feed inlet 202 switching control unit 104
A pre-aeration control unit 101 for closing the feed port 202 and opening the air inlet 203 before introducing the concrete, and controlling the blower 205 to blow air to the end hose 201 to swell the end hose 201; wherein the blowing speed of the blower 205 increases from small to large according to a preset acceleration;
a first air blast speed obtaining unit 102, configured to obtain a first air blast speed of the air blower 205 according to the delivery pipe outlet area and the delivery speed of the concrete pump truck;
a first inflation control unit 103 for controlling blower 205 to blow air to end hose 201 at a first blowing speed in response to end hose 201 being fully inflated;
the feed inlet 202 is used for switching the control unit 104, and is used for responding to the discharge of a delivery pipe of the concrete pump truck, closing the air inlet 203 and opening the feed inlet 202 so that the concrete in the delivery pipe enters the tail end hose 201.
Before concrete is introduced, the air blowing speed is increased from small to large according to the preset acceleration, so that the end hose 201 is inflated, the phenomenon that the end hose 201 is suddenly introduced into the concrete when the end hose is still flat is avoided, and the inner wall is subjected to swing phenomenon caused by uneven pressure, so that the safety problem of a constructor is reduced. In addition, the blowing speed of the embodiment of the present invention increases from small to large according to the preset acceleration, and does not cause abrupt pressure increase to the end hose 201 to cause the end hose 201 to swing. In the embodiment of the invention, after the end hose 201 is swelled, the air is blown at the first air blowing speed, and the first air blowing speed is determined according to the outlet area of the conveying pipe and the conveying speed, so that the swing of the conveying hose caused by overlarge pressure difference during the switching between air blowing and conveying is avoided.
Optionally, the main controller further includes: a discharge port 204 valve control unit;
a discharge port 204 valve control unit for closing the discharge port 204 to raise the end hose 201 in response to the start of blowing of the blower 205 to the end hose 201; and opening discharge port 204 in response to end hose 201 fully bulging.
By closing discharge port 204, the wind blown out by blower 205 cannot leave end hose 201, and thus the speed of blowing out end hose 201 can be increased.
In one embodiment, the pre-charge control unit 101 includes: a blowing acceleration determination subunit and a blowing subunit;
a blowing acceleration determining subunit for determining a first acceleration of blowing according to the bulge speed and the exit speed of the end hose 201; wherein the first acceleration ensures that the air inlet speed of the end hose 201 is greater than the air outlet speed, and the air blowing speed is increased from small to large so as to avoid the air flow suddenly flowing into the end hose 201 to cause the end hose 201 to swing;
and a blowing subunit for controlling the blower 205 to increase the blowing speed according to the first acceleration to blow air to the end hose 201.
It should be noted that, the air inlet speed of the end hose 201 is greater than the air outlet speed to ensure that the end hose 201 can smoothly bulge. Since the end hose 201 bulges slowly, the air outlet speed will be faster, and thus the air inlet speed will be faster to ensure that the air inlet speed is greater than the air outlet speed. Meanwhile, the air blowing speed gradually increases from small to large, so that the end hose 201 can be prevented from swinging due to the sudden air flow into the end hose 201.
In a specific embodiment, the first blowing speed obtaining unit 102 includes: a concrete flow rate determination subunit and a first blowing speed determination subunit;
the concrete flow determination subunit is used for determining the concrete flow according to the outlet area and the feeding speed of the feeding pipe of the concrete pump truck;
and the first air blast speed determining subunit is used for obtaining the first air blast speed according to the concrete flow and the air outlet area of the air blower 205.
By correlating the blowing speed with the concrete flow, the embodiment avoids swinging of the material conveying hose caused by overlarge pressure difference when the blowing and the material conveying are switched.
Optionally, the embodiment of the present invention further includes:
an elastic rope net is arranged at the position from the feeding hole 202 to the discharging hole 204 of the end hose 201, and wraps the outer wall of the end hose 201.
It should be noted that, the elastic rope net can avoid the sudden burst of the end hose 201 due to the blockage, thereby further ensuring the safety of the constructor.
Optionally, the embodiment of the present invention further includes:
the outer wall of the end hose 201 is uniformly provided with a holder, and one side of the holder facing the outside is provided with a ground nail for driving into the ground to prevent the end hose 201 from swinging.
Further, the holder further comprises: a damping spring;
the damping springs are symmetrically arranged at two sides of the ground nail, and are used for preventing the ground nail from falling off from the ground under the influence of the swing of the tail end hose 201.
It should be noted that the embodiment of the present invention further prevents the end hose 201 from swinging by the holder.
The end hose 201 of the embodiment of the invention comprises a feed inlet 202, an air inlet 203 and a discharge outlet 204, valves are arranged on the feed inlet 202, the air inlet 203 and the discharge outlet 204, the feed inlet 202 is connected with a delivery pipe outlet of a concrete pump truck, and the air inlet 203 is connected with a blower 205. Before concrete is introduced, the feeding port 202 is closed, the air inlet 203 is opened, and the blower 205 is controlled to blow air to the end hose 201 so as to enable the end hose 201 to bulge; wherein the blowing speed of the blower 205 increases from small to large according to a preset acceleration. According to the embodiment of the invention, ventilation is performed before the end hose 201 is filled with concrete, so that the end hose 201 is inflated, the swing phenomenon caused by uneven pressure on the inner wall of the end hose 201 due to the fact that the end hose 201 is flat when the concrete is just filled is avoided, and the swing of the end hose 201 due to overlarge blowing speed at one stroke is avoided due to the fact that the blowing speed of the embodiment of the invention is gradually increased. According to the embodiment of the invention, the first blowing speed of the blower 205 is obtained according to the outlet area of the material conveying pipe and the material conveying speed of the concrete pump truck; in response to end hose 201 fully bulging, blower 205 is controlled to blow air at a first blowing speed toward end hose 201. According to the embodiment of the invention, the blowing speed is controlled according to the conveying speed of the concrete, so that the swing of a conveying hose caused by overlarge pressure difference during the switching between blowing and conveying is avoided. In response to blower 205 beginning to blow air into end hose 201, embodiments of the present invention close discharge port 204 to raise the speed of end hose drum 201. Closing discharge port 204 to leave the wind blown by blower 205 inside end hose 201 can accelerate the blowing efficiency of end hose 201. The embodiment of the invention prevents the end hose 201 from being burst by wrapping the outer wall of the end hose 201 with the elastic rope net. In the embodiment of the invention, the anchor is uniformly arranged on the outer wall of the terminal hose 201, and the side of the anchor facing the outer side is provided with the ground nail which is used for being nailed into the ground to prevent the terminal hose 201 from swinging, and further prevent the terminal hose 201 from swinging. In summary, in the embodiment of the invention, the end hose 201 is inflated by blowing air before the end hose 201 is filled with concrete, so that the swing phenomenon caused by uneven stress of the end hose 201 due to sudden filling of concrete into the flat end hose 201 can be effectively reduced, and the safety problem caused by swing of the end hose 201 by constructors is further reduced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
The foregoing is merely illustrative of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (7)
1. An anti-swing device for a hose at the tail end of a concrete pump truck, which is characterized by comprising: the tail end hose comprises a feed inlet, an air inlet and a discharge outlet, valves are arranged on the feed inlet, the air inlet and the discharge outlet, the feed inlet is connected with a delivery pipe outlet of the concrete pump truck, and the air inlet is connected with a blower;
further comprises: a main controller; the main controller comprises a pre-charging control unit, a first air blowing speed obtaining unit, a first charging control unit and a feed inlet switching control unit
The pre-aeration control unit is used for closing the feed inlet, opening the air inlet and controlling the air blower to blow the tail end hose to swell the tail end hose before the concrete is introduced; wherein, the blowing speed of the blower is increased from small to large according to the preset acceleration;
the first air blast speed obtaining unit is used for obtaining the first air blast speed of the air blower according to the outlet area of the material conveying pipe and the material conveying speed of the concrete pump truck;
the first inflation control unit is used for controlling the blower to blow air to the end hose at the first blowing speed in response to the end hose being completely inflated;
the feed inlet switching control unit is used for responding to the discharge of the conveying pipe of the concrete pump truck, closing the air inlet and opening the feed inlet so that concrete in the conveying pipe enters the tail end hose.
2. The concrete pump truck end hose anti-sway device of claim 1, wherein the main controller further comprises: a discharge port valve control unit;
the discharge port valve control unit is used for closing the discharge port to increase the swelling speed of the tail end hose in response to the start of blowing air to the tail end hose by the air blower; and opening the outlet in response to the end hose fully bulging.
3. The concrete pump truck end hose anti-sway device of claim 1, wherein the pre-charge control unit comprises: a blowing acceleration determination subunit and a blowing subunit;
the blast acceleration determining subunit is used for determining a first acceleration of blast according to the bulge speed and the air outlet speed of the tail end hose; the first acceleration ensures that the air inlet speed of the tail end hose is higher than the air outlet speed, and the air blowing speed is increased from small to large so as to prevent the tail end hose from swinging due to the fact that air flow suddenly enters the tail end hose;
and the blowing subunit is used for controlling the blower to increase the blowing speed according to the first acceleration and blowing the end hose.
4. The concrete pump truck end hose anti-sway device of claim 1, wherein the first blast speed obtaining unit comprises: a concrete flow rate determination subunit and a first blowing speed determination subunit;
the concrete flow determining subunit is used for determining the concrete flow according to the outlet area of the delivery pipe and the delivery speed of the concrete pump truck;
the first air blast speed determining subunit is used for obtaining the first air blast speed according to the concrete flow and the air outlet area of the air blower.
5. The concrete pump truck end hose anti-sway device of claim 1, further comprising:
and an elastic rope net is arranged from the feeding hole to the discharging hole of the tail end hose, and the elastic rope net wraps the outer wall of the tail end hose.
6. The concrete pump truck end hose anti-sway device of claim 1, further comprising:
the outer wall of the tail end hose is uniformly provided with a fixer, one side of the fixer facing the outer side is provided with a ground nail, and the ground nail is used for being nailed into the ground to prevent the tail end hose from swinging.
7. The concrete pump truck end hose anti-sway device of claim 6, wherein the retainer further comprises: a damping spring;
the damping springs are symmetrically arranged on two sides of the ground nail and used for preventing the ground nail from falling off from the ground due to the swing influence of the tail end hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210369656.5A CN114658226B (en) | 2022-04-08 | 2022-04-08 | Anti-swing device for end hose of concrete pump truck and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210369656.5A CN114658226B (en) | 2022-04-08 | 2022-04-08 | Anti-swing device for end hose of concrete pump truck and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114658226A CN114658226A (en) | 2022-06-24 |
| CN114658226B true CN114658226B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210369656.5A Active CN114658226B (en) | 2022-04-08 | 2022-04-08 | Anti-swing device for end hose of concrete pump truck and application method thereof |
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| Country | Link |
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| CN (1) | CN114658226B (en) |
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| CN1951657A (en) * | 2006-11-10 | 2007-04-25 | 三一重工股份有限公司 | Device for suppressing pulsated impact of slurry flow in concrete pump vehicle |
| CN103147579A (en) * | 2013-01-09 | 2013-06-12 | 广西大都混凝土集团有限公司 | Safety device for tail end hose of pump truck |
| CN105735650A (en) * | 2014-12-11 | 2016-07-06 | 中联重科股份有限公司 | Concrete pumping equipment and arm rest tail end vibration reduction method for concrete pump truck |
| JP2021070923A (en) * | 2019-10-29 | 2021-05-06 | 鹿島建設株式会社 | Concrete transfer structure, concrete placing device and concrete placing method |
| CN213839662U (en) * | 2020-10-30 | 2021-07-30 | 三一汽车制造有限公司 | Hose enclasping system and cloth machine |
| WO2021179547A1 (en) * | 2020-03-10 | 2021-09-16 | 三一汽车制造有限公司 | Arm support and working device |
| CN214368222U (en) * | 2021-01-21 | 2021-10-08 | 中国建筑土木建设有限公司 | Fixing device for concrete pump truck discharging hose |
| CN215334852U (en) * | 2021-07-21 | 2021-12-28 | 湖北丰泰新型建材有限公司 | Positioning buffer device for concrete mechanical conveying pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3039035C (en) * | 2016-10-10 | 2023-04-04 | Construction Forms, Inc. | Flexible concrete hose shut-off valve |
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2022
- 2022-04-08 CN CN202210369656.5A patent/CN114658226B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1951657A (en) * | 2006-11-10 | 2007-04-25 | 三一重工股份有限公司 | Device for suppressing pulsated impact of slurry flow in concrete pump vehicle |
| CN103147579A (en) * | 2013-01-09 | 2013-06-12 | 广西大都混凝土集团有限公司 | Safety device for tail end hose of pump truck |
| CN105735650A (en) * | 2014-12-11 | 2016-07-06 | 中联重科股份有限公司 | Concrete pumping equipment and arm rest tail end vibration reduction method for concrete pump truck |
| JP2021070923A (en) * | 2019-10-29 | 2021-05-06 | 鹿島建設株式会社 | Concrete transfer structure, concrete placing device and concrete placing method |
| WO2021179547A1 (en) * | 2020-03-10 | 2021-09-16 | 三一汽车制造有限公司 | Arm support and working device |
| CN213839662U (en) * | 2020-10-30 | 2021-07-30 | 三一汽车制造有限公司 | Hose enclasping system and cloth machine |
| CN214368222U (en) * | 2021-01-21 | 2021-10-08 | 中国建筑土木建设有限公司 | Fixing device for concrete pump truck discharging hose |
| CN215334852U (en) * | 2021-07-21 | 2021-12-28 | 湖北丰泰新型建材有限公司 | Positioning buffer device for concrete mechanical conveying pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114658226A (en) | 2022-06-24 |
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