CN106500888A - Dynamometry transmitter and concrete mixer - Google Patents
Dynamometry transmitter and concrete mixer Download PDFInfo
- Publication number
- CN106500888A CN106500888A CN201611130395.2A CN201611130395A CN106500888A CN 106500888 A CN106500888 A CN 106500888A CN 201611130395 A CN201611130395 A CN 201611130395A CN 106500888 A CN106500888 A CN 106500888A
- Authority
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- China
- Prior art keywords
- shell
- pipe
- dynamometry
- dynamometry transmitter
- concrete mixer
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- Legal status (The legal status 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 status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention provides a kind of dynamometry transmitter and concrete mixer, wherein, dynamometry transmitter includes：Tubular shell, including front shell and rear shell, the first end of front shell is connected and is connected with rear shell first end, second end of front shell is used for being connected and being connected with the end bend pipe of the arm support of concrete mixer, and the second end of rear shell is used for being connected with the end hose of the arm support of concrete mixer and being connected；Resistance strain gage, is arranged between front shell and rear shell；Connectivity port, electrically connects on tubular shell and with resistance strain gage.The dynamometry transmitter that this programme is provided is installed in the end of concrete pump truck arm, when arm support tail end stress meets or exceeds the limiting value of setting, dynamometry transmitter sends corresponding detection signal to concrete pump vehicle controller, concrete pump vehicle controller is made to send control signal to corresponding performs device, control performs device carries out respective handling, to avoid security incident.
Description
Technical field
The present invention relates to engineering machinery field, more specifically, is related to a kind of dynamometry transmitter and a kind of with the dynamometry
The concrete mixer of transmitter.
Background technology
With energetically support of the country to new rural village and Urbanization Construction, road is by good, the motor-driven dexterous, construction area of property
The little galianconism frame concrete concrete mixer of area has welcome new opportunity to develop.But as rural area falls behind relatively, operator's
Universal educational level is not high, and its safety operation consciousness is relatively poor, often because operational issue causes concrete pump truck arm
End is overloaded, and is susceptible to security incident, can even cause casualties when serious.Specifically, common operation problem has：
Problem one：End lift heavy.
Concrete mixer operational manual has forbidden arm support tail end lift heavy thing, but also has client to take chances, right
Warning is had no regard for, and lifts weight using arm support, causes the damage of arm support part, can possibly even cause overturning thing when serious
Therefore.
Problem two：End hose is tangled.
Concrete mixer is laid the foundations or during dell, and operator is unsighted, if end hose is by reinforcing bar or other things
When tangling, operator carries out carry arm operation, and arm support very likely can be damaged because extra load is subject to, and can cause arm when serious
Frame unstability fractures or car load is tumbled.
Problem three：In some construction sites, because place limits, long arm rack concrete pump truck cannot be introduced into, and galianconism frame is mixed
Solidifying soil pumping vehicle arm rack length is not reached when requiring (rural market is especially universal) again, and operator may be behind the end hose again
Adjunction delivery pipe or flexible pipe, if now carrying out carry arm action, are substantially equivalent to the situation tangled by end hose, easily cause
Arm support damages the even car load that fractures and tumbles.
Content of the invention
Present invention seek to address that at least one technical problem present in prior art.
For this purpose, a kind of it is an advantage of the invention to provide dynamometry transmitter.
It is a further object of the invention to provide a kind of concrete mixer, including above-mentioned dynamometry transmitter.
For achieving the above object, the embodiment of one side of the invention provides a kind of dynamometry transmitter, for coagulation
Native pump truck, including：Tubular shell, the tubular shell include front shell and rear shell, the first end of the front shell with described
Shell first end connects and is connected afterwards, and the second end of the front shell is used for the end with the arm support of the concrete mixer
Bend pipe connects and is connected, the second end of the rear shell be used for being connected with the end hose of the arm support of the concrete mixer and
It is connected；Resistance strain gage, is arranged between the front shell and the rear shell, for detect the front shell and described after
The size of suffered pulling force between shell；Connectivity port, electrically connects on the tubular shell and with the resistance strain gage,
The connectivity port is used for the controller for connecting the concrete mixer.
The dynamometry transmitter that this programme is provided in a tubular form, survey installed in the end of concrete pump truck arm by dynamometry transmitter
The two ends of power transmitter are connected with the end hose and end bend pipe of arm support respectively, the connectivity port of dynamometry transmitter and coagulation
The controller connection of native pump truck.Dynamometry transmitter detects arm support tail end stress size by internal resistance strain gage, and will inspection
The mechanical signal of survey is converted to the controller that electric signal is conveyed to concrete mixer.In the concrete mixer course of work, if arm support
End load-carrying, bears the pulling force away from front shell direction after rear bulb portion, the pulling force makes resistance strain gage that elastic deformation to occur,
Its resistance is made to change, so as to change the curtage size of detection circuit.Set when arm support tail end stress meets or exceeds
During fixed limiting value, dynamometry transmitter sends corresponding detection signal to concrete pump vehicle controller, makes concrete mixer control
Device sends control signal to corresponding performs device, and control performs device carries out respective handling.
In above-mentioned technical proposal, it is preferable that formed between the first end of the first end of the front shell and the rear shell
Mounting groove, the resistance strain gage in the mounting groove, and the front shell and the rear shell extrude all the time described
Resistance strain gage, so that the resistance strain gage produces elastic deformation.
In its natural state, resistance strain gage is in and is extruded by front shell and rear shell the dynamometry transmitter that this programme is provided
State, make piezoresistance foil gauge keep certain elastic deformation.In the concrete mixer course of work, if arm support tail end load-carrying,
Bear the pulling force away from front shell direction afterwards after bulb portion, make front shell and rear shell subtract the extruding degree of resistance strain gage
Little, the amount of elastic deformation of resistance strain gage reduces therewith so as to which resistance changes, so as to change the electric current or electricity of detection circuit
Pressure size.When arm support tail end stress meets or exceeds the limiting value of setting, dynamometry transmitter is sent out to concrete pump vehicle controller
Corresponding detection signal is sent, and is made concrete pump vehicle controller control signal be sent to corresponding performs device, is controlled performs device
Carry out respective handling.In this programme, resistance strain gage is contradicted with shell in front and back and is coordinated, and fit system is simple, produces the difficulty of assembling
Degree is low.
Specifically, performs device can be with warning device, when arm support tail end overloads, and the control of concrete pump vehicle controller is reported to the police and filled
Put and reported to the police.Performs device can also arm support lowering or hoisting gear, arm support tail end overload when, concrete pump vehicle controller stop arm
Frame continues lifting, so as to prevent the problem that arm support damage fractures or even car load is tumbled from occurring, it is to avoid security incident occur.
In above-mentioned technical proposal, it is preferable that the dynamometry transmitter also includes wear-resistant pipe, and the tubular shell is sleeved on
Outside the wear-resistant pipe, the two ends of the wear-resistant pipe are able to be connected with the end hose and the end bend pipe.
In this programme, dynamometry transmitter includes tubular shell and wear-resistant pipe, and tubular shell is used for installing resistance strain gage, resistance to
Mill pipe is arranged in the pore of tubular shell.When dynamometry transmitter is installed to arm support tail end, wear-resistant pipe and end hose and end
Bend pipe is connected, and is born by wear-resistant pipe and wear and tear caused by pumping material, can so extend the service life of dynamometry transmitter.
In any of the above-described technical scheme, it is preferable that the wear-resistant pipe is removably mounted on the pipe of the tubular shell
In hole.
So design, in dynamometry transmitter using a period of time, after the wear-resistant pipe degree of wear is more serious, can be former wear-resisting
Pipe is removed, and the wear-resistant pipe for more renewing, so that dynamometry transmitter can Long-Time Service.
In any of the above-described technical scheme, it is preferable that the pore of the wear-resistant pipe and the tubular shell is matched somebody with somebody using transition
Close.
So design is easy to wear-resistant pipe to dismantle, and wear-resistant pipe is little with the gap of tubular shell, it is ensured that wear-resistant pipe and tubular shell
The effect that body is connected with arm support pipeline is good.
In any of the above-described technical scheme, it is preferable that the tubular shell is by fixture and the end hose and institute
End bend pipe connection is stated, the fixed structure for coordinating with the fixture on the tubular shell, is formed.
In this programme, tubular shell is connected with end hose and end bend pipe by fixture, such dynamometry transmitter
Disassembling operations are simple, can lift the efficiency of the installation of dynamometry transmitter and later period maintenance.
In any of the above-described technical scheme, it is preferable that the fixture be pipe clamp, the fixed structure for can with described
The groove that pipe clamp coordinates.
Specifically, the second end of the front shell is provided with a groove, and the second end of the front shell passes through one
The individual pipe clamp is connected with the end bend pipe；Second end of the rear shell is provided with a groove, and the rear shell
The second end be connected with the end hose by a pipe clamp.
In any of the above-described technical scheme, it is preferable that the resistance strain gage is circumferentially disposed along the tubular shell
Annular foil gauge.
When end hose is tangled, end hose is to a certain in shell circumference after the active force generally deflection of rear shell
Side, makes side stress maximum, is this this programme using annular foil gauge, annular foil gauge and circumferentially disposed along tubular shell, with
No matter ensureing which direction is flexible pipe stress be partial to, annular foil gauge may detect that the stressing conditions of stress maximum side, so as to
The reliability of the detection of improving product, it is to avoid security incident occurs.
In any of the above-described technical scheme, it is preferable that the two ends of tubular shell are provided with seal.
So design can lift the sealing effectiveness that tubular shell is connected with arm support pipeline, and when preventing pumpdown, material is by managing
Shape housing is leaked with the interface of arm support pipeline.
The embodiment of second aspect present invention provides a kind of concrete mixer, including the arbitrary reality of such as first aspect present invention
The dynamometry transmitter of example offer is provided.
The concrete mixer that second aspect present invention embodiment is provided includes that first aspect present invention any embodiment is provided
Dynamometry transmitter, therefore the concrete mixer there is the whole beneficial effect of the dynamometry transmitter that any of the above-described embodiment provides
Really, will not be described here.
The additional aspect and advantage of the present invention will become obvious in following description section, or the practice by the present invention
Recognize.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment
Substantially and easy to understand, wherein：
Fig. 1 is the cross section structure diagram of the dynamometry transmitter that one embodiment of the invention is provided；
Fig. 2 is that dynamometry transmitter shown in Fig. 1 is installed to the structural representation on arm support tail end.
Wherein, in Fig. 1 and Fig. 2 the corresponding relation between reference and component names is：
1 dynamometry transmitter, 11 tubular shells, shell before 111, shell after 112,12 wear-resistant pipes, 113 fixed structures, 2 resistance
Foil gauge, 3 connectivity ports, 4 end hoses, 5 end bend pipes, 6 fixtures, 7 anchor tips.
Specific embodiment
In order to be more clearly understood that the above objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and concrete real
Apply mode to be further described in detail the present invention.It should be noted that in the case where not conflicting, the enforcement of the application
Feature in example and embodiment can be mutually combined.
A lot of details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also
Implemented with being different from mode described here using other, therefore, protection scope of the present invention does not receive following public tool
The restriction of body embodiment.
As depicted in figs. 1 and 2, the embodiment of one side of the invention provides a kind of dynamometry transmitter 1, for coagulation
Native pump truck, including：Tubular shell 11, the tubular shell 11 include front shell 111 and rear shell 112, the front shell 111
First end is connected and is connected with 112 first end of rear shell, and the first end of the front shell 111 and the rear shell
Form mounting groove between 112 first end, 111 the second end of the front shell is used for end with the arm support of the concrete mixer
End bend pipe 5 connects and is connected, and the second end of the rear shell 112 is used for the end hose with the arm support of the concrete mixer
4 connect and are connected；Resistance strain gage 2, in the mounting groove；Connectivity port 3, on the tubular shell 11
And electrically connect with the resistance strain gage 2, the connectivity port 3 is used for the controller for connecting the concrete mixer；Wherein, institute
State front shell 111 and the rear shell 112 extrudes the resistance strain gage 2 all the time, so that the resistance strain gage 2 produces elasticity
Deformation.
In a tubular form, dynamometry transmitter 1 is arranged on the end of concrete pump truck arm to the dynamometry transmitter 1 that this programme is provided,
The two ends of dynamometry transmitter 1 are connected with the end hose 4 and end bend pipe 5 of arm support respectively, the connectivity port of dynamometry transmitter 1
3 are connected with the controller of concrete mixer.By internal resistance strain gage 2, dynamometry transmitter 1 detects that arm support tail end stress is big
Little, and the mechanical signal of detection is converted to the controller that electric signal is conveyed to concrete mixer, under nature, piezoresistance should
Become state of the piece 2 in being extruded by front shell 111 and rear shell 112, make piezoresistance foil gauge 2 keep certain elastic deformation.
In the concrete mixer course of work, if arm support tail end load-carrying, the drawing away from 111 direction of front shell behind 112 part of rear shell, is born
Power, makes front shell 111 and rear shell 112 reduce the extruding degree of resistance strain gage 2, the amount of elastic deformation of resistance strain gage 2
Reduce therewith so as to which resistance changes, so as to change the curtage size of detection circuit.When arm support tail end stress reaches
Or during more than the limiting value for setting, dynamometry transmitter 1 sends corresponding detection signal to concrete pump vehicle controller, makes concrete
Pump truck controller sends control signal to corresponding performs device, and control performs device carries out respective handling.
Specifically, performs device can be with warning device, when arm support tail end overloads, and the control of concrete pump vehicle controller is reported to the police and filled
Put and reported to the police.Performs device can also arm support lowering or hoisting gear, arm support tail end overload when, concrete pump vehicle controller stop arm
Frame continues lifting, so as to prevent the problem that arm support damage fractures or even car load is tumbled from occurring, it is to avoid security incident occur.
In above-mentioned technical proposal, it is preferable that the dynamometry transmitter 1 also includes wear-resistant pipe 12, the tubular shell 11
It is sleeved on outside the wear-resistant pipe 12, the two ends of the wear-resistant pipe 12 are able to and the end hose 4 and the end bend pipe 5
It is connected.
In this programme, dynamometry transmitter 1 includes tubular shell 11 and wear-resistant pipe 12, and tubular shell 11 should for installing resistance
Become piece 2, wear-resistant pipe 12 is arranged in the pore of tubular shell 11.When dynamometry transmitter 1 is installed to arm support tail end, wear-resistant pipe 12 with
End hose 4 and end bend pipe 5 are connected, and are born by wear-resistant pipe 12 and wear and tear caused by pumping material, can so extend dynamometry pick-up
The service life of device 1.
In any of the above-described technical scheme, it is preferable that the wear-resistant pipe 12 is removably mounted on the tubular shell 11
Pore in.
So design, in dynamometry transmitter 1 using a period of time, after 12 degree of wear of wear-resistant pipe is more serious, can be by original
Wear-resistant pipe 12 is removed, the wear-resistant pipe 12 for more renewing, so that dynamometry transmitter 1 can Long-Time Service.
In any of the above-described technical scheme, it is preferable that the wear-resistant pipe 12 was adopted with the pore of the tubular shell 11
Cross cooperation.
So design is easy to wear-resistant pipe 12 to dismantle, and wear-resistant pipe 12 is little with the gap of tubular shell 11, it is ensured that wear-resistant pipe 12
And effect that tubular shell 11 is connected with arm support pipeline is good.
As shown in Fig. 2 in any of the above-described technical scheme, it is preferable that the tubular shell 11 by fixture 6 with described
End hose 4 and the end bend pipe 5 connect, form on the tubular shell 11 for consolidating that the fixture 6 coordinates
Fixed structure 113.
In this programme, tubular shell 11 is connected with end hose 4 and end bend pipe 5 by fixture 6, such dynamometry pick-up
The disassembling operations of device 1 are simple, can be lifted dynamometry transmitter 1 install and later period maintenance efficiency.
In any of the above-described technical scheme, it is preferable that the fixture 6 is pipe clamp, the fixed structure 113 is for can be with
The groove that the pipe clamp coordinates.Specifically, the second end of the front shell 111 is provided with a groove, and the front shell
111 the second end is connected with the end bend pipe by a pipe clamp；The rear shell 112 is by an anchor tip 7 and end
End flexible pipe 4 connects, and 7 one end of the anchor tip is connected with the end hose 4 and is connected, and the second of the rear shell 112
End is provided with a groove, and the second end of the rear shell 112 passes through the other end of a pipe clamp and the anchor tip 7
Connect and be connected.
In any of the above-described technical scheme, it is preferable that the mounting groove is cannelure, and the resistance strain gage 2 is along institute
State the circumferentially disposed annular foil gauge of tubular shell 11.
When end hose 4 is tangled, after after end hose 4 pairs, the active force of shell 112 is generally partial in 112 circumference of shell
Certain side, make side stress maximum, be this this programme using annular foil gauge, annular foil gauge and circumferential along tubular shell 11
Arrange, no matter to ensure which direction is flexible pipe stress be partial to, annular foil gauge may detect that the stress feelings of stress maximum side
Condition, so as to the reliability of the detection of improving product, it is to avoid security incident occurs.
In any of the above-described technical scheme, it is preferable that the two ends of tubular shell 11 are provided with seal.
So design can lift the sealing effectiveness that tubular shell 11 is connected with arm support pipeline, when preventing pumpdown material by
Tubular shell 11 is leaked with the interface of arm support pipeline.
The embodiment of second aspect present invention provides a kind of concrete mixer (not shown), including the such as present invention the
The dynamometry transmitter that one side any embodiment is provided.
The concrete mixer that second aspect present invention embodiment is provided includes that first aspect present invention any embodiment is provided
Dynamometry transmitter, therefore the concrete mixer there is the whole beneficial effect of the dynamometry transmitter that any of the above-described embodiment provides
Really, will not be described here.
In describing the invention, it is to be understood that term " connection ", " installation ", " fixation " etc. all should do broad sense reason
Solution, for example, " connection " can be fixedly connected, or be detachably connected, or be integrally connected；Can be joined directly together,
Can also be indirectly connected to by intermediary.For the ordinary skill in the art, can understand as the case may be
Above-mentioned term concrete meaning in the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that the specific features, structure, material or the feature that describe with reference to the embodiment or example are contained in of the invention at least one real
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of dynamometry transmitter, for concrete mixer, it is characterised in that include：
Tubular shell, the tubular shell include front shell and rear shell, the first end of the front shell and the rear shell
One end connects and is connected, and the second end of the front shell is used for being connected with the end bend pipe of the arm support of the concrete mixer
And be connected, the second end of the rear shell is used for being connected with the end hose of the arm support of the concrete mixer and being connected；
Resistance strain gage, is arranged between the front shell and the rear shell, for detecting the front shell and the rear pipe
The size of suffered pulling force between shell；
Connectivity port, electrically connects on the tubular shell and with the resistance strain gage, and the connectivity port is used for connecting
Connect the controller of the concrete mixer.
2. dynamometry transmitter according to claim 1, it is characterised in that
Mounting groove is formed between the first end of the first end of the front shell and the rear shell, and the resistance strain gage is arranged on institute
State in mounting groove, and the front shell and the rear shell extrude the resistance strain gage all the time, so that the resistance strain gage
Produce elastic deformation.
3. dynamometry transmitter according to claim 1, it is characterised in that also include：
Wear-resistant pipe, the tubular shell are sleeved on outside the wear-resistant pipe, and the two ends of the wear-resistant pipe are able to and the end
Flexible pipe and the end bend pipe are connected.
4. dynamometry transmitter according to claim 3, it is characterised in that
The wear-resistant pipe is removably mounted in the pore of the tubular shell.
5. dynamometry transmitter according to claim 4, it is characterised in that
The wear-resistant pipe adopts interference fits with the pore of the tubular shell.
6. dynamometry transmitter according to claim 1, it is characterised in that
The tubular shell is connected with the end hose and the end bend pipe by fixture, is molded on the tubular shell
There is the fixed structure for coordinating with the fixture.
7. dynamometry transmitter according to claim 6, it is characterised in that
The fixture is pipe clamp, and the fixed structure is the groove that can coordinate with the pipe clamp.
8. dynamometry transmitter according to claim 6, it is characterised in that
Second end of the front shell is provided with a groove, and the second end of the front shell by a pipe clamp with described
End bend pipe connection；
Second end of the rear shell is provided with a groove, and the second end of the rear shell by a pipe clamp with described
End hose connects.
9. dynamometry transmitter according to any one of claim 1 to 8, it is characterised in that
The resistance strain gage is the annular foil gauge circumferentially disposed along the tubular shell.
10. a kind of concrete mixer, it is characterised in that including dynamometry transmitter as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611130395.2A CN106500888B (en) | 2016-12-09 | 2016-12-09 | Force measuring transmitter and concrete pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611130395.2A CN106500888B (en) | 2016-12-09 | 2016-12-09 | Force measuring transmitter and concrete pump truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106500888A true CN106500888A (en) | 2017-03-15 |
| CN106500888B CN106500888B (en) | 2022-03-25 |
Family
ID=58330767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611130395.2A Active CN106500888B (en) | 2016-12-09 | 2016-12-09 | Force measuring transmitter and concrete pump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106500888B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1345514A (en) * | 1969-12-22 | 1974-01-30 | Warm Air Ventialting Eng Ltd | Pipe couplings |
| US4860791A (en) * | 1988-12-05 | 1989-08-29 | Speed Queen Company | Strain relief clamp for washing machine drain hose |
| CN102720363A (en) * | 2012-06-21 | 2012-10-10 | 三一重工股份有限公司 | Arm support device and concrete pump truck |
| CA2778400A1 (en) * | 2011-05-31 | 2012-11-30 | Bryan Lee Hitchcock | Electronic tong torque system and related methods of use |
| CN203640300U (en) * | 2013-11-14 | 2014-06-11 | 山推楚天工程机械有限公司 | Hose tracking device |
| CN203908874U (en) * | 2014-03-31 | 2014-10-29 | 中国商用飞机有限责任公司 | Ultimate tensile test system for flexible joint of aircraft fuel pipeline |
| CN104748896A (en) * | 2013-12-27 | 2015-07-01 | 武汉科技大学 | System for detecting material distribution hose state of concrete pump truck |
| CN105546274A (en) * | 2016-01-22 | 2016-05-04 | 西安科技大学 | Anti-blocking self-vibrating ring for sprayed concrete pumping pipe |
| CN105606273A (en) * | 2015-12-29 | 2016-05-25 | 天地科技股份有限公司 | Grouting special pressure gauge and grouting pressure testing system |
| CN206378227U (en) * | 2016-12-09 | 2017-08-04 | 三一汽车制造有限公司 | Dynamometry transmitter and concrete mixer |
-
2016
- 2016-12-09 CN CN201611130395.2A patent/CN106500888B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1345514A (en) * | 1969-12-22 | 1974-01-30 | Warm Air Ventialting Eng Ltd | Pipe couplings |
| US4860791A (en) * | 1988-12-05 | 1989-08-29 | Speed Queen Company | Strain relief clamp for washing machine drain hose |
| CA2778400A1 (en) * | 2011-05-31 | 2012-11-30 | Bryan Lee Hitchcock | Electronic tong torque system and related methods of use |
| CN102720363A (en) * | 2012-06-21 | 2012-10-10 | 三一重工股份有限公司 | Arm support device and concrete pump truck |
| CN203640300U (en) * | 2013-11-14 | 2014-06-11 | 山推楚天工程机械有限公司 | Hose tracking device |
| CN104748896A (en) * | 2013-12-27 | 2015-07-01 | 武汉科技大学 | System for detecting material distribution hose state of concrete pump truck |
| CN203908874U (en) * | 2014-03-31 | 2014-10-29 | 中国商用飞机有限责任公司 | Ultimate tensile test system for flexible joint of aircraft fuel pipeline |
| CN105606273A (en) * | 2015-12-29 | 2016-05-25 | 天地科技股份有限公司 | Grouting special pressure gauge and grouting pressure testing system |
| CN105546274A (en) * | 2016-01-22 | 2016-05-04 | 西安科技大学 | Anti-blocking self-vibrating ring for sprayed concrete pumping pipe |
| CN206378227U (en) * | 2016-12-09 | 2017-08-04 | 三一汽车制造有限公司 | Dynamometry transmitter and concrete mixer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106500888B (en) | 2022-03-25 |
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