CN203053801U - Waterproof layer low-temperature performance detection device - Google Patents
Waterproof layer low-temperature performance detection device Download PDFInfo
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- CN203053801U CN203053801U CN 201320039256 CN201320039256U CN203053801U CN 203053801 U CN203053801 U CN 203053801U CN 201320039256 CN201320039256 CN 201320039256 CN 201320039256 U CN201320039256 U CN 201320039256U CN 203053801 U CN203053801 U CN 203053801U
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- elastic
- cryogenic property
- waterproof layer
- fixed
- water barrier
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Abstract
The utility model relates to the technical field of building waterproof layer detection, and particularly relates to a waterproof layer low-temperature performance detection device for improving accuracy for detecting the building waterproof layer low-temperature performance. The waterproof layer low-temperature performance detection device comprises a cylindrical casing, a rear cover fixed on one end of the cylindrical casing, a front cover fixed on the other end of the cylindrical casing and a striking device arranged in the cylindrical casing, wherein one end of a striking rod of the striking device extends out of the front end; a guide flange is arranged in the cylindrical casing; a draw bar is fixedly connected with the guide flange; one end of the draw bar extends out of the rear cover; and a tripping device is fixed on the guide flange and corresponds to a tripping pin fixed on the rear cover. The waterproof layer low-temperature performance detection device provided by the utility model is convenient and quick in replacing striking point, can detect a building waterproof layer in a short time, and can improve accuracy for detecting the building waterproof layer low-temperature performance.
Description
Technical field
The utility model relates to building waterproof layer detection technique field, particularly a kind of water barrier cryogenic property pick-up unit.
Background technology
Building waterproof layer refers at the ground of building or the water barrier on the metope, after construction is finished, generally needs to detect the cryogenic property of building waterproof layer.Existing employing pendulum instrument detects the building waterproof layer cryogenic property, as shown in Figure 1, the pendulum instrument comprises: the swing arm 61 that bearing 60, one ends and bearing 60 are hinged, and the pendulum 62 that is fixed in swing arm 61 other ends, it is as follows to adopt the pendulum instrument to detect the concrete method of testing of building waterproof layer cryogenic property:
At first building waterproof layer to be measured is carried out sub zero treatment, then the pendulum instrument is fixed on the building waterproof layer 70 of vertical level, adjusting swing arm 61 then falls swing arm 61 free pendulums, the tup bump building waterproof layer 70 of pendulum 62, whether the surface of observing building waterproof layer 70 crackle occurs, if crackle do not occur at rum point, the cryogenic property of expression building waterproof layer 70 has reached designing requirement.
But, very responsive to temperature variation because of the cryogenic property of building waterproof layer, the time is long slightly, and the result of detection just can not accurately reflect the cryogenic property of water barrier; And adopt the pendulum instrument to detect, have relatively high expectations when the pendulum instrument is installed, and after finishing hammering once, will change pendulum instrument installation site, and repeat to adjust the swing arm position, so will expend for a long time, and cause testing result just can not accurately reflect the cryogenic property of building waterproof layer.
The utility model content
The purpose of this utility model is to provide a kind of water barrier cryogenic property pick-up unit, is used for improving the accuracy that detects the building waterproof layer cryogenic property.
For achieving the above object, the utility model provides following technical scheme:
A kind of water barrier pick-up unit comprises:
Tubular shell;
Be fixed on the protecgulum of described tubular shell one end;
Be arranged in the described tubular shell and an end stretches out the elastic stem of described protecgulum;
With the guide pole that the described elastic stem other end is fixedlyed connected, the cross-sectional area of described guide pole is less than the cross-sectional area of described elastic stem;
Be sheathed on the described guide pole, have the elastic hammer of pocket for the punch head;
Fixedly connected, be used for the elastic tension spring of the described elastic hammer bump of pulling elastic stem respectively with described protecgulum with described elastic hammer;
Be positioned at described tubular shell and be sheathed on guide flange on the described guide pole;
Be fixed on the described guide flange, be used for the hooking device of the pocket for the punch head of the described elastic hammer of dogging;
Be fixed on the bonnet of the described tubular shell other end;
Be fixed on the described bonnet and relative with described hooking device position, be used for the unhook parts that described elastic hammer is broken off relations;
One end is fixedlyed connected with described guide flange, and the other end stretches out the pull bar of described bonnet.
Preferably, the end face of described elastic stem external part is spherical crown shape end face.
Preferably, the energy when described elastic tension spring is in energy accumulating state is 5 ~ 20J, and the radius of the spherical crown shape end face of corresponding described elastic stem external part is 11-21mm.
Preferably, described guide pole and described elastic stem are integral structure.
Preferably, the described elastic stem part that is arranged in described protecgulum has stopper slot;
Described protecgulum comprises: be fixed on the protecgulum main body on the described tubular shell, be fixed on the extension spring seat on the described protecgulum main body, cover on described extension spring seat and the block of fixedlying connected with described protecgulum main body, spacer pin between described block and extension spring seat, and described spacer pin one end stretches in the stopper slot of described elastic stem.
Preferably, described hooking device comprises: be fixed on the pedestal on the described guide flange, the hook hinged with described pedestal, the hook stage clip of fixedlying connected with described guide flange with described hook afterbody respectively; Wherein, the head of described hook passes described guide flange, and can rotate in certain angular range.
Preferably, described pull bar external part is provided with handle.
Preferably, described unhook parts are pin or the unhook piece of breaking off relations.
Further, also comprise the level meter that is fixed on the described tubular shell outside surface.
The water barrier cryogenic property pick-up unit that the utility model provides in use, pushing drawing rod makes guide flange move to the protecgulum direction along the tubular shell inwall, thereby driving hooking device moves to the lid direction, behind the pocket for the punch head of hook dogging at elastic hammer in the hooking device, the pulling pull bar makes guide flange move to the bonnet direction, makes elastic tension spring be in energy accumulating state; Hand-held this water barrier cryogenic property pick-up unit makes the elastic stem head contact with the building waterproof layer measuring point of selecting, when hooking device be arranged at unhook pin contacts on the bonnet after, hooking device discharges elastic hammer, elastic hammer travels forward at the effect lower edge of elastic tension spring guide pole, bump elastic stem afterbody, make the measuring point of elastic stem head impact building waterproof layer, hold magnifier then and watch measuring point whether crackle is arranged all around, if the surface does not have crackle to show that the cryogenic property of this measuring point place building waterproof layer has reached designing requirement.
From technique scheme as can be known, the water barrier cryogenic property pick-up unit that adopts the utility model to provide, can replace existing pendulum instrument, save bearing and fixed and adjust the time of swing arm, convenient and swift when changing attack point, time spent weak point can be finished the detection of building waterproof layer cryogenic property in the short period of time.Therefore, compared with prior art, the water barrier pick-up unit that adopts the utility model to provide can detect the cryogenic property of building waterproof layer rapidly, has improved the accuracy that detects the building waterproof layer cryogenic property.In addition, the utility model is instant accumulating type, reduces the personnel's injury that causes because of unexpected, has improved the safe reliability of water barrier cryogenic property pick-up unit.
Description of drawings
Fig. 1 is the structural representation of pendulum instrument in the prior art;
The structural representation of a kind of water barrier cryogenic property pick-up unit that Fig. 2 provides for the utility model embodiment;
Fig. 3 is the structural representation of elastic stem among Fig. 2;
Fig. 4 is the structural representation of guide flange among Fig. 2;
Fig. 5 is the structural representation of hooking device among Fig. 2.
Reference numeral:
The 60-bearing, the 61-swing arm, the 62-pendulum, the 70-building waterproof layer,
The 1-tubular shell, the 2-bonnet, the 3-protecgulum, the 4-elastic stem, the 5-block, the 6-spacer pin,
7-extension spring seat, the 8-guide pole, the 9-elastic tension spring, the 10-elastic hammer, the 11-guide flange,
The 12-hooking device, the 13-pull bar, 14 handles, 15-unhook parts, 16 level meters,
The 111-pilot hole, 112-hook hole, 121-pedestal, 122-hook, 123 hook stage clips.
Embodiment
The existing general pendulum instrument that adopts detects the building waterproof layer cryogenic property, but very responsive to temperature variation because of the building waterproof layer cryogenic property, time is long slightly, testing result just can not accurately reflect the cryogenic property of building waterproof layer, and adopt the pendulum instrument to measure, when installing, the pendulum instrument has relatively high expectations, and after finishing hammering once, to change pendulum instrument installation site, and repeat to adjust the swing arm position, so will expend for a long time, and cause testing result just can not accurately reflect the cryogenic property of building waterproof layer.
In view of this, the utility model provides a kind of water barrier cryogenic property pick-up unit, comprise: tubular shell, be fixed on the bonnet of tubular shell one end, be fixed on the protecgulum of the tubular shell other end, be arranged at the attack device in the tubular shell, and elastic stem one end of attack device stretches out protecgulum, be arranged at the guide flange in the tubular shell, the pull bar of fixedlying connected with guide flange, and pull bar one end stretches out bonnet, and is fixed on the trip mechanism on the guide flange, and the trip mechanism correspondence is fixed on the unhook pin on the described tail-hood.The water barrier cryogenic property pick-up unit that adopts the utility model to provide detects building waterproof layer, it is convenient and swift to change attack point, can finish the detection of building waterproof layer cryogenic property in the short period of time, thereby improve the accuracy that detects the building waterproof layer cryogenic property.
In order to make those skilled in the art better understand the technical solution of the utility model, below in conjunction with Figure of description the utility model embodiment is described in detail.
As shown in Figure 2, the utility model embodiment provides a kind of water barrier cryogenic property pick-up unit, comprising:
Be fixed on the protecgulum 3 of tubular shell 1 one ends;
Be arranged in the tubular shell 1 and an end stretches out the elastic stem 4 of protecgulum 3;
With the guide pole 8 that elastic stem 4 other ends are fixedlyed connected, the cross-sectional area of guide pole 8 is less than the cross-sectional area of elastic stem 4;
Be sheathed on the guide pole 8, have the elastic hammer 10 of pocket for the punch head;
Fixedly connected, be used for the elastic tension spring 9 of pulling elastic hammer 10 bump elastic stems 4 respectively with protecgulum 3 with elastic hammer 10;
Be positioned at tubular shell 1 and be sheathed on guide flange 11 on the guide pole 8;
Be fixed on the guide flange 11, be used for the hooking device 12 of the pocket for the punch head of dogging elastic hammer 10;
Be fixed on the bonnet 2 of tubular shell 1 other end;
Be fixed on the bonnet 2 and relative with hooking device 12 positions, be used for the unhook parts 15 that elastic hammer 10 is broken off relations;
One end is fixedlyed connected with guide flange 11, and the other end stretches out the pull bar 13 of bonnet 2.
Say in further detail, the water barrier cryogenic property pick-up unit that the utility model embodiment provides comprises: tubular shell 1, be fixed on the protecgulum 3 of tubular shell 1 front end, be fixed on the bonnet 2 of tubular shell 1 rear end, be arranged at elastic stem 4, guide pole 8, elastic hammer 10, elastic tension spring 9, guide flange 11 and hooking device 12 in the tubular shell 1, correspondingly with hooking device 12 be fixed on unhook parts 15 on the bonnet 2, and the pull bar 13 of fixedlying connected with guide flange 11, pull bar 13 1 ends stretch out bonnet 2; Wherein,
The shape of tubular shell 1 can be cylinder, also can be rectangular cylinder or other kind polygon tube, in the present embodiment, tubular shell 1 be shaped as cylinder, corresponding protecgulum 3 and bonnet 2 are dome, and protecgulum 3 middle parts offer first pilot hole, and bonnet 2 middle parts offer second pilot hole.
Elastic stem 4 is installed in first pilot hole of protecgulum 3, and the front end of elastic stem 4 stretches out protecgulum 3, and the rear end of elastic stem 4 is positioned at tubular shell 3, and elastic stem 4 can move along first pilot hole.Guide pole 8 is fixedlyed connected with elastic stem 4 rear ends.Elastic hammer 10 has pocket for the punch head and pilot hole, and guide pole 8 passes the pilot hole of elastic hammer 10, and elastic hammer 10 is connected with protecgulum 3 by elastic tension spring 9.In the present embodiment, the shape of cross section of elastic stem 4, guide pole 8 and elastic hammer 10 is all circle, and the cross-sectional area of guide pole 8 is less than the cross-sectional area of elastic stem 4, the cross-sectional area of elastic hammer 10 pilot holes is less than the cross-sectional area of elastic stem 4, and namely the diameter of elastic hammer 10 pilot holes is greater than the straight warp of guide pole 8 diameter less than elastic stem 4.Certainly, the shape of cross section of elastic stem 4, guide pole 8 and elastic hammer 10 also can be other shape, for example be rectangle, but will satisfy elastic hammer 10 pilot hole cross-sectional areas greater than the cross-sectional area of guide pole 8, the elastic hammer 10 pilot hole cross-sectional areas cross-sectional area less than elastic stem 4.
The step that the water barrier cryogenic property pick-up unit that uses the utility model embodiment to provide detects building waterproof layer is as follows:
Step 2, handle measuring point well after, place ice chest in measuring point, the thermal insulation shroud rim of sealing ice chest starts ice chest, the temperature of measuring point is down to requires temperature, and keep 30min, removes ice chest then.Need to prove that described ice chest comprises refrigeration device, thermometric device, control module and thermal insulation cover; Wherein, refrigeration device, thermometric device are arranged in the thermal insulation cover, and control module connects refrigeration device and thermometric device respectively, are used for control refrigeration device cooling time, and the temperature in the thermal insulation cover.The cryogenic temperature of ice chest can be down to below-30 ℃, and can keep 30min at least under same temperature.
The water barrier cryogenic property pick-up unit that step 3, hand-held present embodiment provide, with the vertical contact measured water barrier of elastic stem 4 external parts surface, pushing drawing rod 13 makes guide flange 11 move to protecgulum 3 along tubular shell 1 inwall, the logical hooking device 12 of band moves to protecgulum 3 simultaneously, when the hook dogging in the hooking device 12 behind the pocket for the punch head of elastic hammer 10, pulling pull bar 13 makes guide flange move to bonnet, makes elastic tension spring 9 be in energy accumulating state; When hooking device 12 with after unhook parts 15 on being arranged at bonnet 2 contact, hooking device 12 discharges elastic hammer 10, elastic hammer 10 to protecgulum 3 motions, clashes into elastic stem 4 afterbodys at the effect lower edge of elastic tension spring 9 guide pole 8, makes the measuring point of elastic stem 4 head impact building waterproof layers.What deserves to be mentioned is that attack is tested three times at least in same cooled region, that is to say to have three measuring points in the same cooled region at least, all need in ice chest is removed back 20s, finish in the attack test.
Step 4, use optical loupes are observed the measuring point crack degree all around after the hammering.Need to prove that the enlargement factor of described optical loupes is at least 10 times.
From technique scheme as can be known, the water barrier cryogenic property pick-up unit that adopts the utility model to provide, simple to operate, can replace existing pendulum instrument, save bearing and fixed and adjust the time of swing arm, and convenient when changing attack point, time spent lack, can finish the detection of building waterproof layer cryogenic property in the short period of time.Therefore, compared with prior art, the water barrier cryogenic property pick-up unit that adopts the utility model to provide can detect the cryogenic property of building waterproof layer rapidly, improves the accuracy that detects the building waterproof layer cryogenic property.
Preferably, the end face of elastic stem 4 external parts is spherical crown shape end face.
The cryogenic property of building waterproof layer refers under certain impact force action, check shock point (measuring point) crackle whether on every side, therefore, in the water barrier pick-up unit, elastic tension spring 9 be stretched when being in energy accumulating state energy not simultaneously, the radius of the spherical crown shape end face of corresponding elastic stem 4 external parts is also different; Preferably, the energy when elastic tension spring 9 is in energy accumulating state is 5 ~ 20J, and the radius R of the spherical crown shape end face of corresponding elastic stem 4 heads is 11-21mm.As shown in Figure 3, the energy when elastic tension spring 9 is in energy accumulating state is 5J, and the radius R of the spherical crown shape end face of corresponding elastic stem 4 external parts is 11mm; Energy when elastic tension spring 9 is in energy accumulating state is 9.8J, and the radius R of the spherical crown shape end face of corresponding elastic stem 4 external parts is 15m; Energy when elastic tension spring 9 is in energy accumulating state is 20J, and the radius R of the spherical crown shape end face of corresponding elastic stem 4 external parts is 21mm.Length as for guide pole 8 and elastic stem 4, and the collapsing length of elastic tension spring 9 is not done concrete restriction at this, the energy that only needs to satisfy when elastic tension spring 9 is in energy accumulating state is 5 ~ 20J, and the radius R of the spherical crown shape end face of corresponding elastic stem 4 heads is that 11-21mm gets final product.
Preferably, above-mentioned guide pole 8 and elastic stem 4 are integral structure.
Continuation is referring to Fig. 2, and preferably, the part that elastic stem 4 is arranged in protecgulum 3 has stopper slot; Protecgulum 3 comprises: be fixed on the protecgulum main body on the tubular shell 1, be fixed on the extension spring seat 7 on the protecgulum main body, cover on extension spring seat 7 and the block 5 of fixedlying connected with the protecgulum main body, spacer pin 6 between block 5 and extension spring seat 7, and spacer pin 6 one ends stretch in the stopper slot of elastic stem 4, and spacer pin 6 is lacked 2 ~ 3mm along the length of elastic stem axis direction than the length of stopper slot.So arrange, can prevent that when elastic hammer 10 bump elastic stem rear ends elastic stem 4 penetrates or breaks away from protecgulum 3 from protecgulum 3, also can prevent water barrier cryogenic property pick-up unit not the time spent elastic stem skid off voluntarily, the while can allow elastic stem have the space of axially-movable.Stopper slot on the elastic stem 4 along the length of elastic stem 4 axis directions generally between 7 ~ 10mm.
As shown in Figure 4, the hook hole 112 that guide flange 11 has the pilot hole 111 that passes for guide pole 8 and passes for the hook of hooking device 12, wherein, the shape of cross section of pilot hole 111 is identical with guide pole 8 shape of cross sections, be circular because of guide pole 8 shape of cross sections in the present embodiment, so the shape of cross section of pilot hole 111 also is circular, hook hole 112 is strip holes.
As shown in Figure 5, above-mentioned hooking device 12 comprises: be fixed on the pedestal 121 on the guide flange 11, the hook 122 hinged with pedestal 121, the hook stage clip 123 of fixedlying connected with guide flange 11 with hook 122 afterbodys respectively; Wherein, the head of hook 122 passes guide flange 11, and can rotate in certain angular range, and particularly, the head of hook 122 passes the hook hole 112 on the guide flange 11, and can swing in hook hole 112.
Continuation is referring to Fig. 2, and for the ease of pull bar 13 is applied power, preferably, pull bar 13 external parts are provided with handle 14.
Preferably, above-mentioned unhook parts 15 are pin or the unhook piece of breaking off relations.
Continuation is referring to Fig. 2, and in order further to save the time of detecting the building waterproof layer cryogenic property, above-mentioned water barrier cryogenic property pick-up unit also comprises the level meter 16 that is fixed on tubular shell 1 outside surface.Water barrier cryogenic property pick-up unit with level meter 16, can reduce the time of adjusting the vertical building waterproof layer of elastic stem further, thereby improve the accuracy that detects the building waterproof layer cryogenic property during in the building waterproof layer of surface level in detection of vertical.
What deserves to be mentioned is, in the water barrier pick-up unit that the utility model embodiment provides, easily worn part elastic hammer 10, elastic stem 4, spacer pin 6 and link up with 122 general hard, the wear-resisting metal of materials, for example stainless steels of adopting; Other parts can adopt light plastics or metal alloy, for example aluminium alloy etc.
In sum, the water barrier cryogenic property pick-up unit that adopts the utility model to provide, can replace existing pendulum instrument, do not need to determine in advance the position that bearing is fixing, when the water barrier temperature reaches detected temperatures, convenient and swift when changing attack point, time spent weak point can make each attack point finish within a short period of time, make the detected state basically identical of each attack point.Therefore, the water barrier pick-up unit that adopts the utility model to provide can be finished the building waterproof layer cryogenic property in the short period of time and detect, and has improved the efficient that detects the building waterproof layer cryogenic property.
In addition, the water barrier cryogenic property pick-up unit that the utility model provides is easy to carry.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (9)
1. a water barrier cryogenic property pick-up unit is characterized in that, comprising:
Tubular shell;
Be fixed on the protecgulum of described tubular shell one end;
Be arranged in the described tubular shell and an end stretches out the elastic stem of described protecgulum;
With the guide pole that the described elastic stem other end is fixedlyed connected, the cross-sectional area of described guide pole is less than the cross-sectional area of described elastic stem;
Be sheathed on the described guide pole, have the elastic hammer of pocket for the punch head;
Fixedly connected, be used for the elastic tension spring of the described elastic hammer bump of pulling elastic stem respectively with described protecgulum with described elastic hammer;
Be positioned at described tubular shell and be sheathed on guide flange on the described guide pole;
Be fixed on the described guide flange, be used for the hooking device of the pocket for the punch head of the described elastic hammer of dogging;
Be fixed on the bonnet of the described tubular shell other end;
Be fixed on the described bonnet and relative with described hooking device position, be used for the unhook parts that described elastic hammer is broken off relations;
One end is fixedlyed connected with described guide flange, and the other end stretches out the pull bar of described bonnet.
2. water barrier cryogenic property pick-up unit as claimed in claim 1 is characterized in that, the end face of described elastic stem external part is spherical crown shape end face.
3. water barrier cryogenic property pick-up unit as claimed in claim 2 is characterized in that, the energy when described elastic tension spring is in energy accumulating state is 5 ~ 20J, and the radius of the spherical crown shape end face of corresponding described elastic stem external part is 11-21mm.
4. water barrier cryogenic property pick-up unit as claimed in claim 3 is characterized in that, described guide pole and described elastic stem are integral structure.
5. water barrier cryogenic property pick-up unit as claimed in claim 1 is characterized in that,
The part that described elastic stem is arranged in described protecgulum has stopper slot;
Described protecgulum comprises: be fixed on the protecgulum main body on the described tubular shell, be fixed on the extension spring seat on the described protecgulum main body, cover on described extension spring seat and the block of fixedlying connected with described protecgulum main body, spacer pin between described block and extension spring seat, and described spacer pin one end stretches in the stopper slot of described elastic stem.
6. water barrier cryogenic property pick-up unit as claimed in claim 1, it is characterized in that, described hooking device comprises: be fixed on the pedestal on the described guide flange, the hook hinged with described pedestal, the hook stage clip of fixedlying connected with described guide flange with described hook afterbody respectively; Wherein, the head of described hook passes described guide flange, and can rotate in certain angular range.
7. water barrier cryogenic property pick-up unit as claimed in claim 1 is characterized in that, described pull bar external part is provided with handle.
8. water barrier cryogenic property pick-up unit as claimed in claim 1 is characterized in that, described unhook parts are pin or the unhook piece of breaking off relations.
9. as the arbitrary described water barrier cryogenic property pick-up unit of claim 1-8, it is characterized in that, also comprise the level meter that is fixed on the described tubular shell outside surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320039256 CN203053801U (en) | 2013-01-18 | 2013-01-18 | Waterproof layer low-temperature performance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320039256 CN203053801U (en) | 2013-01-18 | 2013-01-18 | Waterproof layer low-temperature performance detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203053801U true CN203053801U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320039256 Expired - Lifetime CN203053801U (en) | 2013-01-18 | 2013-01-18 | Waterproof layer low-temperature performance detection device |
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| CN (1) | CN203053801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091183A (en) * | 2013-01-18 | 2013-05-08 | 中电投工程研究检测评定中心 | Waterproof layer low-temperature performance detection device |
-
2013
- 2013-01-18 CN CN 201320039256 patent/CN203053801U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091183A (en) * | 2013-01-18 | 2013-05-08 | 中电投工程研究检测评定中心 | Waterproof layer low-temperature performance detection device |
| CN103091183B (en) * | 2013-01-18 | 2015-03-11 | 中电投工程研究检测评定中心 | Waterproof layer low-temperature performance detection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100840 Haidian District, Wanshou Road, No. 27, Patentee after: CHINA POWER INVESTMENT ENGINEERING TESTING AND EVALUATION CENTER Co.,Ltd. Address before: 100840 Haidian District, Wanshou Road, No. 27, Patentee before: C+E Center for Engineering Research Test and Appraisal |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |