CN208293908U - A kind of stress meter pre-embedded device - Google Patents
A kind of stress meter pre-embedded device Download PDFInfo
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- CN208293908U CN208293908U CN201820209094.7U CN201820209094U CN208293908U CN 208293908 U CN208293908 U CN 208293908U CN 201820209094 U CN201820209094 U CN 201820209094U CN 208293908 U CN208293908 U CN 208293908U
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Abstract
The utility model relates to a kind of stress meter pre-embedded device, stress meter pre-embedded device includes sub-sleeve and mother sleeve.One end of sub-sleeve is identical as conventional sleeve, carries out tapping with the size of Reinforcement Stress-count, the other end has three openings, and the part of the assembling of three open end of sub-sleeve includes a wedge shape by block, a wedge-shaped pushing block and two wedge lock blocks；One end of mother sleeve is identical as conventional sleeve, carries out tapping with the size of reinforcing bar, and structure and the sub-sleeve of the other end match, and have the cavity for three open ends for accommodating sub-sleeve.The stress meter pre-embedded device of the utility model replaces traditional muff-joint device by lock, enables to the installation procedure of stress meter to be simplified, greatlys save human and material resources and time cost, has a good application prospect.
Description
Technical field
The utility model relates to engineering monitoring technical fields, and in particular to a kind of stress meter pre-embedded device.
Background technique
In recent years, as the construction of hydraulic structure, operation gradually develop to enlargement, synthesization, many areas are newly-built
Waterwork object location it is more and more remoter, build condition it is more and more severe, the unfavorable factor encountered is also more and more.In order to
The deformation and stability of analysis of hydraulic structure, become the real-time monitoring of mass reinforced concrete reinforcement stresses
One of indispensable content is generally directly measured using stress meter.
The installation of stress meter at present mostly uses greatly sleeve connection method: reinforcing bar cutting → mantle fiber → butt welding → assembling, general
Process are as follows: first in the reinforcing bar connecting rod of precast plant production 30cm long, connecting rod needs identical as the reinforcing bar model of installation site；
Connecting rod one end is subjected to mantle fiber processing by mantle fiber machine；By bar cutting at the measuring point having good positioning, by that will connect to welding machine
The non-mantle fiber end of connector and connecting rod butt welding；Stress meter both ends are connected on reinforcing bar by turnbarrel and complete instrument installation.
Traditional stress meter installation method has the following problems and disadvantage: one side installation method is cumbersome, time-consuming and laborious；Separately
On the one hand measurement cable winding is be easy to cause to be difficult to resolve the problems such as being damaged with accuracy of instrument；These all can directly or indirectly be influenced
To the monitoring of malformation and stability.
Its reason is analyzed, major influence factors have at 3 points:
1. manpower and material resources problem.Conventional installation process is more, needs equipment to be used also more, have cutting machine, die head threading machine,
To welding machine and sleeve lathe for machining etc., every kind of machine also needs several professionals to take appointment with certificate operation, the manpower and material resources of investment
It is larger.In addition, reinforcing bar used in mass reinforced concrete is generally up to 9 meters, small part is even up to 12 meters.Cause
This needs to lift reinforcing bar by two people during installation and slowly rotate, third individual in instrument installation place by means of pipe wrench by instrument and
Reinforcing bar is connected by sleeve rotating, and reinforcing rib meter needs to keep direction consistent with two sections of reinforcing bars at this time, so to installation personnel pipe wrench
Operating technology and tacit degree is worked in coordination it is also proposed that higher requirement.
2. cable winds problem.The cable line length of stress meter is generally tens of rice to rice up to a hundred etc..Pacify in instrument
During dress, with the rotation of reinforcing bar, also rotated with it since the transmitting effect of power often will drive reinforcing rib meter, on reinforcing rib meter
The cable that face is drawn will be with the rotation of reinforcing rib meter and one is wound on reinforcing bar with enclosing another circle, causes the icepro of cable
It disorderly even knots, installs and need slowly manipulated untwisted cable disk line again after instrument；On the other hand, during being rotated with pipe wrench slightly
Do not pay attention to will Overexertion cable is snapped, cause the damage of instrument.
3. accuracy of instrument problem.The reinforcing bar of large volume concrete structural construction binding is usually in netted or caged, traditional
Stress meter mounting means does not have the condition installed inside usually, transports finger again after usually installing outside the venue
Positioning is set.Reinforcing bar length after connection is up to 30m, inevitably will cause reinforcing rib meter warp during lifting and transporting
Stress-unloading-stress circulation is gone through, therefore unpredictable influence can be caused on the precision of instrument.
Chinese patent CN201220470987.X discloses a kind of stress meter, including stress meter, two connection reinforcing bars；It is described
The first end of connection reinforcing bar is separately connected the both ends of the stress meter, two sleeves, and the first end of the sleeve is separately connected institute
The second end of connection reinforcing bar is stated, the second end of the sleeve is separately connected the connecting pin of reinforcing bar to be measured.Above-mentioned utility model patent
Stress meter the connection reinforcing bar of stress meter is connect with reinforcing bar to be measured by using the connection type of straight screw sleeve, both make same
Axle center is connected, and quality of connection meets " mechanical connection technique of reinforcement regulation " (JGJ107-2010) requirement.The installation of proof stress meter
Construction quality improves the working performance of stress meter.But the utility model is the axle center phase so that the reinforcing bar of installation connection
Even, it can not make that installation procedure is simplified, use manpower and material resources sparingly and solves the problems, such as cable tangled up and knotted.
Therefore, a kind of convenient and fast steel stress meter pre-embedded device is developed, and very necessary using matched installation method.
Utility model content
In order to overcome drawbacks described above, the utility model has developed a kind of steel stress meter pre-embedded device in a creative way, specifically
Ground adopts the following technical scheme that:
A kind of steel stress meter pre-embedded device, including sub-sleeve and mother sleeve, it is characterised in that: the sub-sleeve has two
End, one end is identical as conventional sleeve, carries out tapping with the size of stress meter, forms band internal thread hollow end, is defined as P
End, the other end have three openings, are defined as the end O；The parts at the end sub-sleeve O includes that a wedge shape presses block, a wedge shape
Pushing block and two wedge lock blocks.
The mother sleeve has both ends, and one end is identical with conventional sleeve, carries out tapping with the size of reinforcing bar, formation has
The hollow end of internal screw thread is defined as the end R；Its other end is defined as the end S, and structure and sub-sleeve match, and has and accommodates sub-set
The cavity at the end cylinder O, the internal diameter of cavity are equal to the outer diameter of sub-sleeve.
Further, the sub-sleeve is a kind of sleeve of internal diameter and stress meter outer diameter with size, the O with three openings
End, the specific structure of three openings are as follows:
One is radially to cross the radial perforation square hole of central axis on cylindric sub-sleeve surface, radial to penetrate through in square hole
The shape of portion's two identical wedge lock blocks staggered relatively, the radial shape for penetrating through square hole, size and wedge lock block matches；
One be the axial direction that is opened up to radial perforation square hole with internal thread hollow end along central axis from sub-sleeve not
Square hole is penetrated through, is connected to radial perforation square hole, and is formed on the radially side wall of perforation square hole after passing through radial perforation square hole
The groove of " V " shape, for accommodating the " V " shape tip promoted inwards when wedge-shaped pushing block limiting slot blocks the wedge shaped tip of wedge lock block
Structure；
The other is the radial direction for radially crossing central axis from sub-sleeve surface does not penetrate through square hole, until with the axial not side of perforation
Until hole is connected to, position of opening does not penetrate through wedge shape built in square hole by block in the centre at the end P and radial perforation square hole, radial direction.
Further, the wedge shape does not penetrate through square hole by the radial direction of block and sub-sleeve and matches, and body shape is laterally
The cuboid that section is square, the upper end square, lower end wedge shape；The shape of the wedge shape pushing block is similar by block with wedge shape,
It does not penetrate through square hole with the axial direction of sub-sleeve and matches, and one end is wedge shape, and the other end has " V " shape tip, while in " V " shape point
Self-locking structure is provided at the heavy caliber at end, pattern is two limiting slots, and in lozenges, shape is " ∨ " for the limiting slot setting
Or " √ "；Wedge shape matches by the lozenges of the lozenges and wedge-shaped pushing block of block；The wedge lock block is similar by block with wedge shape, with
The radial perforation square hole of sub-sleeve matches, the " V " shape tip two sides phase of the lozenges of two wedge lock blocks and wedge-shaped pushing block
Matching；Radially symmetrically opened on the inner wall of the end the mother sleeve S two it is rectangular do not penetrate through slot, position penetrates through square hole with radial respectively
Position is corresponding, is used to stationary wedge closing piece.
Further, the wedge shape is not penetrated through the side of square hole by the radial direction that the rectangular side length in the upper end of block is less than sub-sleeve
Long, highly suitable with the radius of sub-sleeve, it is highly 15mm that wedge shape, which presses a length of 5mm of block upper end Quad Sides, herein；Wedge-shaped pushing block
The rectangular side length in upper end is less than the axial side length for not penetrating through square hole, and length is slightly less than sub-sleeve tapping end to radial perforation square hole
Distance, the diameter of limiting slot are greater than 1.5mm deeply, herein a length of 5mm of pushing block upper end Quad Sides, length 18mm；Wedge lock block it is upper
It holds rectangular side length to be less than the side length of radial perforation square hole, is highly slightly less than on sub-sleeve radius and mother sleeve and does not penetrate through slot
The sum of depth, it is highly 13mm that wedge lock block upper end side length, which is 5mm, herein.
Further, two rectangular corresponding outer surfaces of slot that do not penetrate through have slotting position cue mark.
Further, the internal diameter of mother sleeve (2) cavity is equal to the outer diameter of sub-sleeve (1), does not penetrate through the Quad Sides of slot (9)
The long rectangular side length for being slightly larger than wedge lock block (5), is herein 5.5mm.
Compared with prior art, the utility model has the advantage that
Traditional muff-joint device is replaced by locker, has done simplification on installation procedure first, it is not necessary to borrow again
Help pipe wrench, installation personnel can also be reduced to a people by more people, and be not necessarily to various accredited operators；Secondly locker is not required to
It rotates, presses and lock, it is convenient and efficient；Finally, being improved to install in field by traditional over-the-counter installation, eliminates and carry too long steel
The program of muscle, so that the precision of stress meter is guaranteed, service life will not be reduced.Analyze its advantages, mainly by with
Lower 3 points:
1) human and material resources and time cost are greatlyd save.Attachment device passes through lathe and the directly prefabricated processing of mold, scene
It does not need to be not necessarily to various accredited operators using cutting machine, die head threading machine, to welding machine.It can be inside by the utility model
In-site installation stress meter eliminates intermediate handling time.And installation procedure has obtained great simplification, without using pipe wrench
Equal tools do not need rotation reinforcing bar yet, and installation personnel can also be reduced to a people by more people, safe and efficient by installing manually.
2) cable tangled up and knotted is solved the problems, such as.The device replaces traditional pure sleeve connection side by locker
Formula has properly settled the winding of cable caused by rotating with reinforcing rib meter and knotting is asked so that reinforcing rib meter itself does not need to rotate
Topic, also protects cable against damages while saving a large amount of time.
3) instrument installation survival rate and measurement accuracy are improved.Pipe wrench installation steps are eliminated by the utility model device,
Pipe wrench is avoided to damage cable.By the utility model device can in-site installation stress meter inside, so reinforcing rib meter will not
Bear stress-unloading-ringings such as stress again in handling process.These all substantially increase instrument survival rate and measurement essence
Degree, extends service life.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 show the schematic three dimensional views of sub-sleeve；
Fig. 2 show the sectional view that sub-sleeve radially penetrates through square hole 8；
Fig. 3 show the sectional view that sub-sleeve does not penetrate through square hole 6 radially；
Fig. 4 show the schematic three dimensional views of mother sleeve；
Fig. 5 show mother sleeve along the cross-sectional view of slot 9；
Fig. 6 show wedge shape by the schematic three dimensional views of block；
Fig. 7 (7A, 7B, 7C) show wedge shape by the three-view diagram of block；
Fig. 8 show the schematic three dimensional views of wedge-shaped pushing block；
Fig. 9 (9A, 9B, 9C) show the three-view diagram of wedge-shaped pushing block；
Figure 10 show the schematic three dimensional views of wedge lock block；
Figure 11 (11A, 11B, 11C) show the three-view diagram of wedge lock block；
Figure 12 show the schematic three dimensional views for installing the sub-sleeve of part；
Figure 13, which is shown, to be installed the sub-sleeves of components and radially penetrates through the sectional view of square hole 8；
Figure 14, which is shown, to be installed the sub-sleeves of components and not to penetrate through the sectional view of square hole 6 radially；
Figure 15 show the schematic diagram that steel stress meter pre-embedded device is installed between reinforcing bar and stress meter.
Appended drawing reference: 1, sub-sleeve；2, mother sleeve；3, wedge shape presses block；4, wedge-shaped pushing block；5, wedge lock block；6, radially not
Penetrate through square hole；7, axial not penetrate through square hole；8, radial perforation square hole；9, slot；10, stress meter；11, splice；12, it answers
Power meter cable.
Specific embodiment
Hereinafter reference will be made to the drawings, describes system provided by the utility model and its work side in detail by way of example
Method.It should be noted that being used to help understand the utility model for the explanation of these way of example, but do not constitute
Restriction to the utility model.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, can indicate: individualism A, individualism B exist simultaneously tri- kinds of situations of A and B, the terms
"/and " it is to describe another affiliated partner relationship, indicate may exist two kinds of relationships, for example, A/ and B, can indicate: individually depositing
In A, two kinds of situations of individualism A and B, in addition, character "/" herein, typicallying represent forward-backward correlation object is a kind of "or" pass
System.
Embodiment one
The present embodiment mainly introduces a kind of structure of steel stress meter pre-embedded device of the utility model.
1, main structure
The steel stress meter pre-embedded device main structure of the utility model includes sub-sleeve 1 and mother sleeve 2.
As shown in Figure 1, it is the schematic three dimensional views of sub-sleeve.As shown, sub-sleeve 1 has both ends, one end and biography
Sleeve of uniting is identical, carries out tapping with the size of stress meter, forms band internal thread hollow end, is defined as the end P, and the other end is fixed
Justice is the end O, carries out three openings to it；Three openings include the radial perforation square hole 8 for radially crossing central axis, and one in
The axial direction of mandrel line does not penetrate through square hole 7 and a radial direction for radially crossing central axis does not penetrate through square hole 6.They specific
Aperture mode and position are as follows:
As shown in Fig. 2, its sectional view for radially penetrating through square hole 8 for sub-sleeve.As shown, radial perforation square hole 8
Aperture mode are as follows: position of opening radially crosses central axis on cylindric 1 surface of sub-sleeve and open radial perforation at the end O of sleeve
Square hole 8, internal two identical wedge lock block 5 staggered relatively, the shape of square hole and the shape of wedge lock block 5 match.
The axial aperture mode for not penetrating through square hole 7 are as follows: open axial direction along central axis on O extreme direction from the end P of sub-sleeve
Not penetrating through square hole 7, (axial direction opened up to radial perforation square hole with internal thread hollow end along central axis from sub-sleeve is not
Penetrate through square hole), it is connected to radial perforation square hole, and formed on the radially side wall of perforation square hole after passing through radial perforation square hole
The groove of " V " shape, for accommodating the " V " shape tip promoted inwards when wedge-shaped pushing block limiting slot blocks the wedge shaped tip of wedge lock block
Structure.
As shown in figure 3, its sectional view for not penetrating through square hole 6 radially for sub-sleeve.As shown, radial do not penetrate through square hole
6 aperture mode are as follows: between the end sub-sleeve P and the end O, central axis is radially crossed from sub-sleeve surface open and radial do not penetrate through
Square hole 6, position of opening is in the centre at the end P and radially perforation square hole, until connection until not penetrating through square hole 7 with axial direction, built-in wedge
Shape presses block 3.
As shown in figure 4, it is the schematic three dimensional views of mother sleeve.
The mother sleeve 2 has both ends, and 2 one end of mother sleeve is identical with conventional sleeve, carries out tapping, shape with the size of reinforcing bar
At band internal thread hollow end, it is defined as the end R；The other end is defined as the end S, and structure and sub-sleeve match, and has and accommodates
The cavity at the end sub-sleeve O, the internal diameter of cavity are equal to the outer diameter of sub-sleeve.
Further, as shown in figure 5, radially symmetrically opening two on the inner wall of the end S rectangular does not penetrate through slot 9.Fig. 5 is mother
Cross-sectional view of the sleeve along slot 9.Rectangular 9 position of slot that do not penetrate through is corresponding with radial perforation 8 position of square hole respectively, is used to solid
Fixed/to accommodate wedge lock block 5, outer surface is corresponding with slotting position cue mark.The range of the rectangular side length of slot 9 is greater than wedge shape
The rectangular side length of closing piece, preferably 5.5 millimeters herein.
2, the structure of components
The parts at the end the sub-sleeve O includes a wedge shape by block 3, wedge-shaped pushing blocks, 4, two wedge lock blocks 5.
It is described individually below.
1) wedge shape presses block 3
As shown in fig. 6, its schematic three dimensional views for pressing block for wedge shape；It is wedge shape by block as shown in Fig. 7 (7A, 7B, 7C)
Three-view diagram；
Wedge shape is that a kind of and sub-sleeve 1 radial direction does not penetrate through that the upper end that square hole 6 matches is rectangular, lower end is wedge-shaped by block 3
Structure, body shape are cuboid, and transversal cross-section is square, and the front view of lower end wedge shape is square.Wedge shape is by block
Holding rectangular side size range is to be less than the radial side length for not penetrating through square hole 6, and the range of height is less than the radius of sub-sleeve.This
Place's wedge shape presses preferably 5 millimeters of block upper end side length, in fact it is highly preferred that 15 millimeters.
2) wedge-shaped pushing block 4
As shown in figure 8, it is the schematic three dimensional views of wedge-shaped pushing block；As shown in Fig. 9 (9A, 9B, 9C), for wedge-shaped pushing block
Three-view diagram.
The shape of wedge-shaped pushing block 4 is similar by block with wedge shape, does not penetrate through square hole 7 with the axial direction of sub-sleeve and matches, one end
For wedge shape, the other end has " V " shape tip (as a kind of selection, V-arrangement bevel angle is 45 °), while in the big of " V " shape tip
Be provided with self-locking structure at bore, pattern is two limiting slots, limiting slot setting in lozenges, shape be " ∨ " or
"√"；Wedge shape matches by the lozenges of the lozenges and wedge-shaped pushing block of block.The side size range that the upper end of wedge-shaped pushing block is rectangular is
It is less than the axial side length for not penetrating through square hole 7, the long distance for being less than sub-sleeve P end thread termination to radial perforation square hole 8, limit
The diameter of position slot is greater than 1.5 millimeters deeply.As a kind of selection, preferably 5 millimeters of the rectangular side length in pushing block upper end, grow preferably 18 millis herein
Rice, limiting slot diameter is preferably 1.5 millimeters deep, and angle is mutually all 45 degree with closing piece wedge angle.
3) wedge lock block 5
It as shown in Figure 10, is the schematic three dimensional views of wedge lock block；As shown in Figure 11 (11A, 11B, 11C), for wedge shape
The three-view diagram of closing piece.
The wedge lock block 5 is similar by block 3 with wedge shape, matches with the radial perforation square hole 8 of sub-sleeve 1, two wedge shapes
The lozenges of closing piece and the " V " shape tip two sides of wedge-shaped pushing block match；It is radially symmetrically opened on the inner wall of the end the mother sleeve S
Two rectangular not to penetrate through slot, and position is corresponding with radial perforation square hole position respectively, for stationary wedge closing piece.In wedge lock block
Holding rectangular side size range is to be less than the side length of radial perforation square hole 8, and the range of height is to be less than sub-sleeve radius and mother
Sleeve does not penetrate through the sum of the depth of slot 9, is greater than the difference of the two.
As a kind of selection, preferably 5 millimeters of wedge lock block upper end side length, in fact it is highly preferred that 13 millimeters.
Embodiment two
The present embodiment is carried out on the basis of previous embodiment one, and a kind of steel stress of the utility model is mainly introduced
Count the assemble method of pre-embedded device.
A kind of assemble method of steel stress meter pre-embedded device, specially following step:
S1 the appearance of block 3, wedge-shaped pushing block 4,5 part of wedge lock block) is pressed in the three opening square hole inner walls and wedge shape of sub-sleeve 1
Lubricating oil is spread in brush painting in face, guarantees that it can the smooth movement in each square hole that sub-sleeve is opened；
It S2) will be in the opposite radial direction perforation square hole 8 for being put into sub-sleeve 1 of two wedge lock block 5；
S3) two wedge lock blocks are fixed with one circle of adhesive tape winding, to prevent being dropped out in installation process；
S4) wedge-shaped pushing block 4 is put at axle center by the sleeve inner of threaded one end to open and does not penetrate through square hole 7 axially
Interior, tip portion withstands two wedge lock blocks 5；
S5) by wedge shape by block 3 be put into sleeve middle position open it is radial do not penetrate through in square hole 6, complete the peace of sub-sleeve 1
Dress；
S6) mother sleeve 2 is prefabricated overall structure, does not need to go assembling again.
It as shown in figure 12, is the schematic three dimensional views for installing the sub-sleeve of part；It as shown in figure 13, is to install zero
The sub-sleeve of component radially penetrates through the sectional view of square hole 8；It as shown in figure 14, is to install the sub-sleeves of components radially
The sectional view of square hole 6 is not penetrated through.
Embodiment three
The utility model is described further below with reference to Practical Project and verifies its using effect.It is described herein
Specific implementation case only to explain the utility model, is not used to limit utility model device.
Anhui the Huihe River Nanping ship lock is unloaded using band for the first time in order to reduce lift wall internal force and improve the resistance to capsizing of lock chamber
The dock type lock chamber structure of lotus plate, the structure by bed course, bottom plate, lift wall and the relieving slab of lift wall two sides form one it is whole
Body.Design phase has only carried out primary Calculation from the influence to lock chamber internal force, but not after structural shape, setting height and wall
Influencing each other etc. for banketing is studied in detail, the design rationality of the overall structure pattern and construction and operation phase
Safety is all unknown.In order to study dock type lock chamber structural stability and the problem on deformation with relieving slab, need to construction
And overall structure carries out field monitoring detection during water flowing operation.Therefore the stress born to bottom slab stress reinforcing bar is at any time
Monitoring with backfill elevation variation is that the premise of deformation and stability analysis is carried out to lock chamber.
It is respectively arranged 6 groups of reinforcing rib meters in transverse steel above and below bottom plate according to detection requirement, is all made of the utility model dress
Attachment device provided by setting and installation method.Instrument installation complies fully with design requirement, and reinforcing rib meter connection procedure does not pass through
, there is not coiling situation, survival rate 100% yet in rotation.By long-term monitoring, analysis observation data, variation has good
Good regularity, fits like a glove with actual conditions, illustrates that stress meter is working properly, and inside configuration stress data is true, accurate, can
Reliability is high.It is dissection in the stabilization of the dock type lock chamber structure of the internal stress of bottom plate and its distribution and research with relieving slab
Property and deformation provide strong data supporting.
As described above, utility model device can be realized preferably.For a person skilled in the art, it is not departing from
These embodiments are changed in the case where the principles of the present invention and spirit, modifies, replace, integrating and modification is still fallen within
In the protection scope of the utility model.The part for not carrying out specified otherwise or restriction in the utility model, is all made of the prior art
Implement.
Claims (6)
1. a kind of stress meter pre-embedded device comprising sub-sleeve (1) and mother sleeve (2), it is characterised in that:
The sub-sleeve (1) has both ends, and one end is identical as conventional sleeve, carries out tapping with the size of stress meter, forms band
Internal thread hollow end, is defined as the end P, and the other end has three openings, is defined as the end O；The assembling zero at sub-sleeve (1) end O
Part includes a wedge shape by block (3), wedge-shaped pushing block (4), two wedge lock blocks (5)；
The mother sleeve (2) has both ends, and one end is identical with conventional sleeve, carries out tapping with the size of reinforcing bar, formation has
The hollow end of internal screw thread is defined as the end R；Its other end is defined as the end S, and structure and sub-sleeve (1) match, and has and accommodates son
The cavity at sleeve (1) end O, the internal diameter of cavity are equal to the outer diameter of sub-sleeve (1).
2. a kind of stress meter pre-embedded device according to claim 1, it is characterised in that: the sub-sleeve (1) is in one kind
The sleeve of diameter and stress meter outer diameter with size, the end O with three openings, the specific structure of three openings are as follows:
One is radially to cross radial perforation square hole (8) of central axis on cylindric sub-sleeve (1) surface, radial to penetrate through square hole
(8) internal two identical wedge lock blocks (5) staggered relatively, radial shape, size and the wedge lock block (5) for penetrating through square hole (8)
Shape match；
One is the axial direction opened up along central axis to radial perforation square hole (8) from sub-sleeve (1) with internal thread hollow end
Square hole (7) are not penetrated through, penetrate through square hole (8) connection with radial, and radially penetrating through square hole after passing through radial perforation square hole (8)
(8) groove of " V " shape is formed on side wall, for accommodating the wedge shaped tip that wedge-shaped pushing block (4) limiting slot blocks wedge lock block (5)
The " V " shape cutting-edge structure that Shi Xiangli is promoted；
The other is the radial direction for radially crossing central axis from sub-sleeve (1) surface does not penetrate through square hole (6), until not penetrating through with axial
Until square hole (7) is connected to, position of opening does not penetrate through wedge built in square hole (6) in the centre at the end P and radial perforation square hole (8), radial direction
Shape presses block (3).
3. a kind of stress meter pre-embedded device according to claim 2, it is characterised in that: the wedge shape presses block (3) and sub-set
The radial direction of cylinder (1) does not penetrate through square hole (6) and matches, and body shape is the cuboid that transversal cross-section is square, and the upper end is
Square, lower end are wedge shape；The shape of the wedge shape pushing block (4) is similar by block (3) with wedge shape, the axial direction with sub-sleeve (1)
It does not penetrate through square hole (7) to match, one end is wedge shape, and the other end has " V " shape tip, while at the heavy caliber at " V " shape tip
Provided with self-locking structure, pattern is two limiting slots, and in lozenges, shape is " ∨ " or " √ " for the limiting slot setting；Wedge shape
Match by the lozenges of block (3) and the lozenges of wedge-shaped pushing block (4)；The wedge lock block (5) is similar by block (3) with wedge shape,
Match with radial perforation square hole (8) of sub-sleeve (1), " V " of the lozenges of two wedge lock blocks (5) and wedge-shaped pushing block (4)
Shape tip two sides match；Two are radially symmetrically opened on the inner wall of mother sleeve (2) end S rectangular does not penetrate through slot (9), position
Set it is corresponding with radial perforation square hole (8) position respectively, for stationary wedge closing piece (5).
4. a kind of stress meter pre-embedded device according to claim 3, it is characterised in that: wedge shape is rectangular by the upper end of block (3)
Side length be less than radial direction of sub-sleeve and do not penetrate through the side lengths of square hole (6), highly suitable with the radius of sub-sleeve (1), wedge shape herein
It is highly 15mm by block (3) upper end a length of 5mm of Quad Sides；The rectangular side length in the upper end of wedge-shaped pushing block (4), which is less than, not to be penetrated through axially
The side length of square hole (7), length are slightly less than sub-sleeve (1) tapping end to the distance of radial perforation square hole (8), and the diameter of limiting slot is deeply big
In 1.5mm, a length of 5mm of pushing block upper end Quad Sides, length 18mm herein；The side length that the upper end of wedge lock block (5) is rectangular is less than
The side length of radial perforation square hole (8), be highly slightly less than do not penetrated through on sub-sleeve (1) radius and mother sleeve slot (9) depth it
With, herein wedge lock block upper end side length be 5mm, be highly 13mm.
5. a kind of stress meter pre-embedded device according to claim 4, it is characterised in that: two rectangular not to penetrate through slot (9)
Corresponding outer surface has slotting position cue mark.
6. a kind of stress meter pre-embedded device according to claim 5, it is characterised in that: the internal diameter etc. of mother sleeve (2) cavity
Outer diameter in sub-sleeve (1), do not penetrate through slot (9) rectangular side length be slightly larger than wedge lock block (5) rectangular side length, herein for
5.5mm。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820209094.7U CN208293908U (en) | 2018-02-07 | 2018-02-07 | A kind of stress meter pre-embedded device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820209094.7U CN208293908U (en) | 2018-02-07 | 2018-02-07 | A kind of stress meter pre-embedded device |
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| CN208293908U true CN208293908U (en) | 2018-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560831A (en) * | 2018-02-07 | 2018-09-21 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of Reinforcement Stress-count attachment device and its installation method |
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2018
- 2018-02-07 CN CN201820209094.7U patent/CN208293908U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560831A (en) * | 2018-02-07 | 2018-09-21 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of Reinforcement Stress-count attachment device and its installation method |
| CN108560831B (en) * | 2018-02-07 | 2024-04-26 | 水利部交通运输部国家能源局南京水利科学研究院 | Reinforcing steel bar stress meter connecting device and mounting method thereof |
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Effective date of registration: 20231210 Address after: 223 Guangzhou road, Gulou District, Nanjing City, Jiangsu Province, 210015 Patentee after: NANJING HYDRAULIC Research Institute Patentee after: CHINA COMMUNICATION CONSTRUCTION COMPANY FIRST HARBOUR CONSULTANTS Co.,Ltd. Address before: 223 Guangzhou road, Gulou District, Nanjing City, Jiangsu Province, 210015 Patentee before: NANJING HYDRAULIC Research Institute |
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