CN209342512U - A kind of portable prestressing force bellows longitudinal load test detecting instrument - Google Patents
A kind of portable prestressing force bellows longitudinal load test detecting instrument Download PDFInfo
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- CN209342512U CN209342512U CN201821942081.7U CN201821942081U CN209342512U CN 209342512 U CN209342512 U CN 209342512U CN 201821942081 U CN201821942081 U CN 201821942081U CN 209342512 U CN209342512 U CN 209342512U
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- chamber
- braced frame
- longitudinal load
- load test
- bellows
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Abstract
The utility model discloses a kind of portable prestressing force bellows longitudinal load test detecting instruments, including chamber, force section, forced section, force value sensor and displacement sensor, the cross sectional dimensions of the chamber is greater than the diameter of bellows, the both ends of the chamber are equipped with opening, one end of the chamber is arranged in along chamber longitudinal sliding motion for the force section, and for being longitudinally applied to pressure along it to being placed in the indoor bellows of the chamber, the forced section is fixed at outside the other end of the chamber, the force value sensor is mounted on the forced section, and the pressure being subject to for real-time measurement bellows, institute's displacement sensors for acquiring the length travel information of force section in real time.The utility model can guarantee the accuracy of bellows longitudinal load testing inspection result, and can be adapted to the prestressed plastic corrugated pipe of different inner diameters specification.
Description
Technical field
The utility model belongs to engineering Inspection Technique field, is related to a kind of ripple pipe detector, and in particular to a kind of portable
Formula prestressing force bellows longitudinal load test detecting instrument.
Background technique
Prestressing force bellows is in the large-span prestressed tensioning engineering such as highway, railway, bridge, skyscraper using wide
It is general.It is directed in the newest standards JT/T 529-2016 " pre-stressed bridge concrete plastic film capicitor " of Ministry of Communications's publication and answers in advance
Power plastic film capicitor, it is desirable that, when bearing longitudinal load, tube coupling longitudinal compression amount and tube coupling length ratio are not more than 0.8% for it.
Bellows longitudinal load test requirements document intercepted length is the plastic film capicitor tube coupling of 1100mm, according to inside diameter of bel
Difference, apply different size of longitudinal load, hold lotus 10min, and recording compressed amount.However, in actual tests detection process
In, since the draw ratio of bellows test specimen is excessive, the easy buckling unstability of bellows when applying longitudinal load causes test result difficult
The performance being compressed axially is resisted with authentic and valid reaction test specimen.
Utility model content
To solve bellows draw ratio excessive the technical issues of leading to compressive buckling unstability in the prior art, the utility model
Be designed to provide a kind of portable prestressing force bellows longitudinal load test detecting instrument, it may ensure that bellows longitudinal direction lotus
The accuracy of testing inspection result is carried, and the prestressed plastic corrugated pipe of different inner diameters specification can be adapted to.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of portable prestressing force bellows longitudinal load test detecting instrument, which includes chamber, force section, stress
Portion, force value sensor and displacement sensor, the cross sectional dimensions of the chamber are greater than the diameter of bellows, the both ends of the chamber
Equipped with opening, the force section is arranged in one end of the chamber along chamber longitudinal sliding motion, and for being placed in the chamber
Interior bellows is longitudinally applied to pressure along it, and the forced section is fixed at outside the other end of the chamber, and the force value passes
Sensor is mounted on the forced section, and the pressure being subject to for real-time measurement bellows, and institute's displacement sensors are for real-time
Acquire the length travel information of force section.
According to the above technical scheme, the chamber is separate structure comprising the upper Special-shaped Plates and lower different type plate being oppositely arranged,
The cross section of the upper Special-shaped Plates and lower different type plate is the small U-shaped cross section in the big bottom of opening.
According to the above technical scheme, which further includes braced frame and several lifting units, and the upper Special-shaped Plates are set
It sets at the top of the braced frame, the bottom of the braced frame is arranged in the lower different type plate, and the lifting unit is threaded through
On the top and/or bottom of the braced frame, the lifting unit be located at the inner end in braced frame and upper Special-shaped Plates and/or under
Special-shaped Plates connection, the lifting unit is for driving Special-shaped Plates and/or lower different type plate to move up and down.
According to the above technical scheme, the lifting unit includes bracelet and second connecting rod, one end of the bracelet and second connecting rod
It is fixedly connected, the other end of the second connecting rod passes through screw thread across braced frame and upper Special-shaped Plates and/or lower different type plate
Connection, the second connecting rod and braced frame) between be connected through a screw thread.
According to the above technical scheme, the bottom of the braced frame is equipped with several support legs, the bottom of each support leg
It is provided with leveling nut.
According to the above technical scheme, level(l)ing bubble is provided in the braced frame.
According to the above technical scheme, the force section includes gusset, afterburner handle and first connecting rod, the afterburner handle with
One end of first connecting rod is fixedly connected, and the other end of the first connecting rod passes through across the side wall of braced frame and gusset
It is threadedly coupled, is connected through a screw thread between the first connecting rod and braced frame, the gusset is vertically arranged in the chamber
One end on the outside of.
According to the above technical scheme, the gusset is fixedly mounted on a sliding block, and the sliding block is slidably mounted on a sliding rail
On, the sliding rail is fixedly mounted on the bottom of braced frame.
According to the above technical scheme, the forced section includes baffle and stressed plate, and the baffle is mounted on the braced frame
On, one end of the force value sensor is connect with the baffle, and the other end is connect with the stressed plate, the stressed plate setting
In the outside of the chamber other end.
According to the above technical scheme, the stressed plate is towards the concentric ring for being carved with multiple and different diameters on the end face of chamber.
The beneficial effect that the utility model generates is: the utility model passes through the chamber being arranged for placing bellows, then
By force section, the collective effect of forced section, force value sensor and displacement sensor, can be tested in bellows longitudinal load
When, it prevents bellows from leading to buckling unstability because draw ratio is excessive, but authentic and valid can react what test specimen resistance was compressed axially
Performance, to guarantee the accuracy of testing result.The utility model can facilitate engineering construction field to be engaged in the mechanism of testing inspection
And personnel carry out testing inspection to the longitudinal load index of bellows.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the utility model embodiment middle chamber.
In figure: 1- braced frame, 2- controller, 3- bracelet, 4- baffle, 5 force value sensors, 6- stressed plate, 7- chamber,
The upper Special-shaped Plates of 7.1-, 7.2- lower different type plate, 8- gusset, 9- afterburner handle, 10- first connecting rod, 11- displacement sensor, 12-
Support leg, 13- leveling nut, 14- level(l)ing bubble, 15- sliding block, 16- sliding rail, 17- second connecting rod.
Specific embodiment
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
"front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", " orientation or positional relationships of the instructions such as "inner", "outside"
To be based on the orientation or positional relationship shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, without referring to
Show or imply that signified detector or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is construed as a limitation of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as referring to
Show or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.In addition, in the description of the present invention, unless otherwise indicated, " multiples' " contains
Justice is two or more.
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.It should be appreciated that described herein
Specific embodiment only to explain the utility model, is not used to limit the utility model.Based on the implementation in the utility model
Example, those of ordinary skill in the art's every other embodiment obtained without making creative work, all belongs to
In the range of the utility model protection.
As shown in Figure 1, a kind of portable prestressing force bellows longitudinal load test detecting instrument, the detector include chamber 7,
Force section (including gusset 8), forced section (including stressed plate 6), force value sensor 5 and displacement sensor 11, the cross of chamber 7
Sectional dimension is greater than the diameter of bellows, and the both ends of chamber 7 are equipped with opening, and force section is arranged along 7 longitudinal sliding motion of chamber in chamber 7
One end, and for being longitudinally applied to pressure along it to the bellows being placed in chamber 7, forced section is fixed at chamber 7
Outside the other end, force value sensor 5 is mounted on forced section, and the pressure being subject to for real-time measurement bellows, displacement sensor
For acquiring the length travel information of force section in real time.
In the preferred embodiment of the utility model, as shown in Fig. 2, chamber 7 is separate structure comprising be oppositely arranged
The cross section of upper Special-shaped Plates 7.1 and lower different type plate 7.2, upper Special-shaped Plates 7.1 and lower different type plate 7.2 is small U-shaped in the big bottom of opening
Cross section, in order to place bellows.
In the preferred embodiment of the utility model, as shown in Figure 1, the detector further includes braced frame 1 and several
The top of braced frame 1 is arranged in a lifting unit, upper Special-shaped Plates 7.1, and the bottom of braced frame 1 is arranged in lower different type plate 7.2, rises
Drop portion is threaded through on the top and/or bottom of braced frame 1, and lifting unit is located at inner end and upper Special-shaped Plates 7.1 in braced frame 1
And/or lower different type plate 7.2 connects, lifting unit is for driving Special-shaped Plates 7.1 and/or lower different type plate 7.2 to move up and down.Pass through
Lifting unit drives upper Special-shaped Plates and/or lower different type plate to move up and down, the spacing between adjustable two Special-shaped Plates, to be used for
Detect the prestressing force bellows of different-diameter.
In the preferred embodiment of the utility model, as shown in Figure 1, lifting unit includes bracelet 3 and second connecting rod 17, bracelet
3 are fixedly connected with one end of second connecting rod 17, the other end of second connecting rod 17 pass through braced frame 1 and upper Special-shaped Plates 7.1 and/
Or be connected through a screw thread between lower different type plate 7.2, it is connected through a screw thread between second connecting rod 17 and braced frame 1.Turn bracelet
Move second connecting rod along silk mouth direction, thus drive upper Special-shaped Plates and/or lower different type plate mobile, it is various sizes of pre- to be adapted to
Stress bellows.
The utility model in specific application, respectively connects in the top and bottom of braced frame there are two bracelet, four hands
Ring is in same vertical face, and bracelet is respectively connected to one piece of Special-shaped Plates by corresponding second connecting rod, can be upper and lower by rotation
Bracelet drives two pieces of heterotype steel plates to move up and down.
In the preferred embodiment of the utility model, as shown in Figure 1, the bottom of braced frame 1 is equipped with several supports
For foot 12 to support braced frame, the bottom of each support leg 12 is provided with leveling nut 13, connects in order to adjust braced frame
Horizontal position is at chamber.Preferably, it is provided with level(l)ing bubble 14 in braced frame 1, level(l)ing bubble is specifically located at
The top of braced frame checks whether braced frame is in horizontal together with chamber to facilitate.
In the preferred embodiment of the utility model, as shown in Figure 1, force section includes gusset 8, afterburner handle 9 and
One connecting rod 10, afterburner handle 9 are fixedly connected with one end of first connecting rod 10, and the other end of first connecting rod 10 passes through braced frame 1
Side wall and gusset 8 between be connected through a screw thread, be connected through a screw thread between first connecting rod 10 and braced frame 1, gusset 8
It is vertically arranged on the outside of one end of chamber 7, turn afterburner handle, makes connecting rod drive gusset to move along silk mouth direction, to apply
Loading carries.Wherein, gusset is preferably steel plate, and steel mechanics performance preferably reaches Q235 grade, the suitable > 10HRC of Rockwell hardness.Reinforcing
Plate outer end is connected with displacement sensor by screw, apply active force when, gusset with prestressing force bellows longitudinal contraction
And move, displacement sensor reflects longitudinal receipts of the prestressing force bellows under longitudinal load by the movement of detection gusset
Contracting amount.
In the preferred embodiment of the utility model, as shown in Figure 1, gusset 8 is fixedly mounted on a sliding block 15, sliding block
15 are slidably mounted on a sliding rail 16, and sliding rail 16 is fixedly mounted on the bottom of braced frame 1, and specially sliding rail, which is mounted on, is opened in
In the translot of braced frame bottom, sliding block slides on the slide rail drives gusset mobile.
In the preferred embodiment of the utility model, as shown in Figure 1, forced section includes baffle 4 and stressed plate 6, baffle 4
It is mounted in braced frame 1, one end of force value sensor 5 is connect with baffle 4, and the other end is connect with stressed plate 6, stressed plate 6
The outside of 7 other end of chamber is set.
In the preferred embodiment of the utility model, as shown in Figure 1, stressed plate 6 is multiple towards being carved on the end face of chamber 7
The concentric ring of different-diameter, in order to make the prestressing force bellows centering when detecting of different dimensions.
As shown in Figure 1, the utility model further includes the controller 2 with digital display type screen, controller is mounted on support frame
The top of frame is connect with displacement sensor and force value sensor, for adjusting test parameters and each sensing of real-time display
The collected test data of device.In the present embodiment, force value sensor maximum range is preferably 3~5KN, and can be accurately detected
0.1N, displacement sensor maximum range are preferably 50~100mm, and can be accurately detected 0.01mm.
Below according to JT/T529-2016 " pre-stressed bridge concrete plastic film capicitor " code requirement, internal diameter point is chosen
Not Wei 60mm and 110mm two kinds of gage plastic bellowss, take the utility model carry out longitudinal load testing inspection, with to this
Utility model is described further.
1. test specimen: internal diameter is the prestressed plastic corrugated pipe of 60mm.
The detecting step of the utility model is as follows:
S1, a segment length is measured on sample with Steel Ruler first is 1100mm bellows tube coupling, and is intercepted for longitudinal
Loading test detects, and is placed in sample under 23 DEG C of environment for 24 hours before testing inspection；
First start instrument 15min before S2, testing inspection, and check whether controller reads normally, adjusts under support leg
Leveling nut, so that level(l)ing bubble is placed in the middle.Sample is placed in chamber, sample left end is contacted with stressed plate, passes through stressed plate
On the concentric ring that is carved with, so that bellows is in middle position；
S3, bracelet is adjusted, the Special-shaped Plates for driving bracelet to connect with connecting rod are mobile, hold Special-shaped Plates slightly sample to be checked
, not can extrude sample；
S4, rotation afterburner handle uniformly apply force to controller to sample and show that force value is 900N, hold lotus 10min,
And the shift value that displacement sensor is shown is recorded, this shift value is longitudinal load decrement.
This sample decrement is 6.4mm, and buckling unstability does not occur for sample in sample loading procedure, and testing result is effective.Examination
Sample longitudinal compression amount and tube coupling length ratio K=6.4/1100, K value are 0.58%, and sample longitudinal load meets code requirement.
2. test specimen: internal diameter is the prestressed plastic corrugated pipe of 110mm.
The detecting step of the utility model is as follows:
S1, a segment length is measured on sample with Steel Ruler first is 1100mm bellows tube coupling, and is intercepted for longitudinal
Loading test detects, and is placed in sample under 22 DEG C of environment for 24 hours before testing inspection；
First start instrument 15min before S2, testing inspection, and check whether controller reads normally, adjusts under support leg
Sample is placed in chamber by leveling nut so that level(l)ing bubble (14) is between two parties, and sample left end is contacted with stressed plate, by by
The concentric ring being carved on power plate, so that bellows is in middle position；
Bracelet above and below S3, adjusting, the Special-shaped Plates for driving bracelet to connect with connecting rod are mobile, keep Special-shaped Plates that sample to be checked is micro-
Microtorr is lived, and not can extrude sample；
S4, rotation afterburner handle uniformly apply force to controller to sample and show that force value is 2200N, hold lotus
10min, and the shift value that displacement sensor is shown is recorded, this shift value is longitudinal load decrement.
This sample decrement is 7.6mm, and buckling unstability does not occur for sample in sample loading procedure, and testing result is effective.Examination
Sample longitudinal compression amount and tube coupling length ratio K=7.6/1100, K value are 0.69%.Sample longitudinal load meets code requirement.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (10)
1. a kind of portable prestressing force bellows longitudinal load test detecting instrument, which is characterized in that the detector includes chamber
(7), the cross sectional dimensions of force section, forced section, force value sensor (5) and displacement sensor (11), the chamber (7) is greater than wave
The diameter of line pipe, the both ends of the chamber (7) are equipped with opening, and the force section is arranged along chamber (7) longitudinal sliding motion in the chamber
One end of room (7), and for being longitudinally applied to pressure along it to the bellows being placed in the chamber (7), the forced section is solid
Fixed to be arranged outside the other end of the chamber (7), the force value sensor (5) is mounted on the forced section, and for real-time
The pressure that measuring bellow is subject to, institute's displacement sensors for acquiring the length travel information of force section in real time.
2. portable prestressing force bellows longitudinal load test detecting instrument according to claim 1, which is characterized in that described
Chamber (7) is separate structure comprising the upper Special-shaped Plates (7.1) and lower different type plate (7.2) being oppositely arranged, the upper Special-shaped Plates
(7.1) and the cross section of lower different type plate (7.2) is the small U-shaped cross section in the big bottom of opening.
3. portable prestressing force bellows longitudinal load test detecting instrument according to claim 2, which is characterized in that the inspection
Surveying instrument further includes braced frame (1) and several lifting units, and the upper Special-shaped Plates (7.1) are arranged in the braced frame (1)
Top, the lower different type plate (7.2) is arranged in the bottom of the braced frame (1), and the lifting unit is threaded through the support
On the top and/or bottom of frame (1), the lifting unit be located at inner end in braced frame (1) and upper Special-shaped Plates (7.1) and/
Or lower different type plate (7.2) connection, the lifting unit is for driving Special-shaped Plates (7.1) and/or lower different type plate (7.2) to do lifting fortune
It is dynamic.
4. portable prestressing force bellows longitudinal load test detecting instrument according to claim 3, which is characterized in that described
Lifting unit includes bracelet (3) and second connecting rod (17), and the bracelet (3) is fixedly connected with one end of second connecting rod (17), described
The other end of second connecting rod (17) passes through across braced frame (1) and upper Special-shaped Plates (7.1) and/or lower different type plate (7.2)
It is threadedly coupled, is connected through a screw thread between the second connecting rod (17) and braced frame (1).
5. portable prestressing force bellows longitudinal load test detecting instrument according to claim 3, which is characterized in that described
The bottom of braced frame (1) is equipped with several support legs (12), and the bottom of each support leg (12) is provided with leveling nut
(13)。
6. portable prestressing force bellows longitudinal load test detecting instrument according to claim 5, which is characterized in that described
Level(l)ing bubble (14) are provided in braced frame (1).
7. portable prestressing force bellows longitudinal load test detecting instrument according to claim 1, which is characterized in that described
Force section includes gusset (8), afterburner handle (9) and first connecting rod (10), the afterburner handle (9) and first connecting rod (10)
One end is fixedly connected, and the other end of the first connecting rod (10) passes through across the side wall of braced frame (1) and gusset (8)
It is threadedly coupled, is connected through a screw thread between the first connecting rod (10) and braced frame (1), the gusset (8) is vertically arranged
On the outside of one end of the chamber (7).
8. portable prestressing force bellows longitudinal load test detecting instrument according to claim 7, which is characterized in that described
Gusset (8) is fixedly mounted on a sliding block (15), and the sliding block (15) is slidably mounted on a sliding rail (16), the sliding rail
(16) it is fixedly mounted on the bottom of braced frame (1).
9. portable prestressing force bellows longitudinal load test detecting instrument according to claim 3, which is characterized in that described
Forced section includes baffle (4) and stressed plate (6), and the baffle (4) is mounted on the braced frame (1), the force value sensing
One end of device (5) is connect with the baffle (4), and the other end is connect with the stressed plate (6), and stressed plate (6) setting exists
The outside of chamber (7) other end.
10. portable prestressing force bellows longitudinal load test detecting instrument according to claim 9, which is characterized in that institute
Stressed plate (6) is stated towards the concentric ring for being carved with multiple and different diameters on the end face of chamber (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821942081.7U CN209342512U (en) | 2018-11-23 | 2018-11-23 | A kind of portable prestressing force bellows longitudinal load test detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821942081.7U CN209342512U (en) | 2018-11-23 | 2018-11-23 | A kind of portable prestressing force bellows longitudinal load test detecting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209342512U true CN209342512U (en) | 2019-09-03 |
Family
ID=67747702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821942081.7U Active CN209342512U (en) | 2018-11-23 | 2018-11-23 | A kind of portable prestressing force bellows longitudinal load test detecting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209342512U (en) |
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2018
- 2018-11-23 CN CN201821942081.7U patent/CN209342512U/en active Active
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