CN210180844U - High strain detection device - Google Patents
High strain detection device Download PDFInfo
- Publication number
- CN210180844U CN210180844U CN201921032634.XU CN201921032634U CN210180844U CN 210180844 U CN210180844 U CN 210180844U CN 201921032634 U CN201921032634 U CN 201921032634U CN 210180844 U CN210180844 U CN 210180844U
- Authority
- CN
- China
- Prior art keywords
- hook portion
- support frame
- wire rope
- right hook
- high strain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a high strain detection device, which comprises a supporting rack, the weight, connect the hammer mechanism of carrying of the vertical displacement of drive weight on the support frame, connect on the support frame and carry hammer mechanism matched with unhook mechanism, unhook mechanism includes along the vertical gliding steel sheet of support frame, the location portion of being connected with the steel sheet of setting on the support frame, it includes left hook portion to carry hammer mechanism, with left hook portion articulated right hook portion with connect on the support frame drive left side, the drive division of the vertical displacement of right hook portion, left hook portion and right hook portion form the scissors fork structure, the articulated department of left hook portion and right hook portion articulates on the steel sheet, the cooperation of mutual articulated left hook portion and right hook portion forms the tong mouth of pressing from both sides tight weight. The utility model discloses the effect of being convenient for unhook has.
Description
Technical Field
The utility model belongs to the technical field of the technique of building engineering check out test set and specifically relates to a high detection device that meets an emergency.
Background
In the process of acceptance inspection of the foundation piles, a high-strain method is adopted to carry out detection tests on the bearing capacity and integrity of the single pile, and the free drop hammer is conventionally adopted to hammer the pile top to complete the tests.
The high strain method is a common method for detecting the quality of pile foundation engineering, and can detect the structural integrity and vertical compressive bearing capacity of a pile body. In the test process, the heavy hammer is lifted by a crane, then falls down by using external force, a hammering force is applied to the foundation pile, a sensor is arranged on the pile body, the speed and force time-course curve are collected, and the vertical compression bearing capacity and the integrity of the pile body of the single pile are judged through fluctuation theoretical analysis. The traditional method adopts a crane for hoisting and then adopts a method of manual external force unhooking.
Chinese patent with patent publication No. CN206902782U discloses a foundation pile high strain detection unhooking device, which comprises an unhooking handle, a connecting hole, a right unhooking handle, a left unhooking handle, a connecting rod, a central pin shaft, a clamping nozzle, a telescopic cross beam, a handle rotating shaft, an unhooking shaft, a handle, a telescopic rod, a notch, an adding rod and a clamping nozzle head, wherein the connecting hole is formed in the upper end of the unhooking handle, and the left side of the unhooking handle is provided with the left unhooking handle. The upper end of left side unhook handle is provided with the handle pivot, and the upper end of right side unhook handle is provided with the unhook axle, and handle pivot and unhook axle pass through telescopic cross beam and connect, and telescopic cross beam's bottom is provided with the handle, and one side of handle is provided with the telescopic link, and one side of telescopic link is connected with the extension rod, and one side of telescopic link is provided with the notch. The clamping mode of the clamping nozzle is clamped on the handle rotating shaft and the unhooking shaft through the telescopic cross beam, and the telescopic cross beam is separated from the handle rotating shaft and the unhooking shaft through rotating the telescopic cross beam, so that the clamping nozzle is opened, and the purpose of releasing the heavy hammer is achieved.
The above prior art solutions have the following drawbacks: at the in-process that detects, because weight itself is very big, press from both sides the mouth and can press from both sides tight weight then up the in-process of moving, be through the telescopic cross beam chucking at handle pivot and unhook epaxial, when the processing that needs go on the unhook, must rotate telescopic cross beam, this moment because press from both sides the mouth clamp force almost the same with the gravity of weight itself, it is great to rotate the telescopic cross beam degree of difficulty through artificial mode this moment to the degree of difficulty that increases the unhook.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high strain detection device has solved the great problem of the unhook degree of difficulty.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a high strain detection device, includes support frame, weight, connects the hammer mechanism that carries of drive weight vertical displacement on the support frame, connects on the support frame and carries hammer mechanism matched with unhook mechanism, unhook mechanism includes along the vertical gliding steel sheet of support frame, sets up the location portion of being connected with the steel sheet on the support frame, carry hammer mechanism including left hook portion, with left hook portion articulated right hook portion and connect the drive left and right hook portion vertical displacement's on the support frame drive portion, left hook portion and right hook portion form the scissors fork structure, left hook portion and right hook portion's articulated department articulates on the steel sheet, mutual articulated left hook portion and right hook portion cooperate and form the tong mouth of pressing from both sides tight weight.
By adopting the technical scheme, the driving part drives the left hook part and the right hook part to slide down to proper positions, the synchronous steel plate slides down, the hinged parts of the left hook part and the right hook part are synchronously hinged on the steel plate, so that the positions of the left hook part, the right hook part and the steel plate are determined, the clamping mouths of the left hook part and the right hook part at the initial positions can be opened, the opened clamping mouths can be aligned to the heavy hammer, then the driving part drives the left hook part and the right hook part to move upwards, the hinged parts of the left hook part and the right hook part are limited, and under the premise that the position of the steel plate is not changed, the hinged parts of the left hook part and the right hook part form a certain angle until the hinged parts are close to each other; the motion of drive division makes the weight upward movement, when moving to a take the altitude, the drive division all stops, drive division drive left hook portion this moment, right hook portion downstream, because the position of steel sheet is unchangeable, left hook portion and right hook portion take place to rotate round articulated department, left hook portion and right hook portion alternate segregation this moment, the tong mouth opens, make weight and tong mouth separation, the weight drops under the effect of gravity, the process that drops is pressed from both sides tight promotion and unhook to the weight is accomplished to this moment, this process is through mutually supporting of location portion and drive division, greatly reduced the degree of difficulty of unhook, workman's intensity of labour has been alleviateed. Through this unhook mode, it is comparatively steady and safe.
The utility model discloses further set up to: the positioning part comprises a first steel wire rope and a positioning rod connected to the support frame, one end of the first steel wire rope is connected to the steel plate, and the other end of the first steel wire rope is provided with a positioning pin inserted on the positioning rod.
Through adopting above-mentioned technical scheme, insert the locating pin and establish different positions on the locating lever to change the position of steel sheet on the support frame, make the position that steel sheet and left and right hook portion removed cooperate.
The utility model discloses further set up to: the positioning rod is provided with a plurality of positioning holes positioned on the same vertical line at intervals, and the positioning holes are matched with the positioning pins.
By adopting the technical scheme, the positioning pins are correspondingly inserted into different positioning holes according to the actual moving distance of the left hook part and the right hook part, so that the moving position of the steel plate is limited.
The utility model discloses further set up to: the top surface of support frame is connected with two first fixed pulleys, one of them first fixed pulley is located the top of steel sheet, another first fixed pulley is located the locating lever top, first wire rope sliding connection is on two first fixed pulleys.
Through adopting above-mentioned technical scheme, two first fixed pulleys are connected on the support frame, and the effect of first fixed pulley mainly is the direction of changing force, and two first fixed pulleys set up in the position of difference, make first wire rope form the shape of the font of falling U, and the one end connection that first wire rope kept away from the steel sheet is inserted the locating pin of establishing on the locating hole, thereby through operator pulling this first wire rope outside the support frame promptly and making the locating pin correspond and insert and establish different locating holes, thereby do not need the operator to climb up the support frame and drive first wire rope.
The utility model discloses further set up to: the driving part comprises a jack connected to the support frame and two second steel wire ropes connected with the left hook part and the right hook part respectively, one end of each second steel wire rope is connected with an output shaft of the jack, and the other end of each second steel wire rope is connected with the tops of the left hook part and the right hook part respectively.
Through adopting above-mentioned technical scheme, the flexible in-process of output shaft of jack, the decline of drive left and right hook portion or rise, two second wire rope's tip respectively with the end connection of left and right hook portion, under the unchangeable condition in position of steel sheet, change the position of left and right hook portion to make left and right hook portion take place to rotate round articulated department, its rotation principle is the same with the principle of scissors, thereby realizes opening and closing of pressing from both sides the mouth.
The utility model discloses further set up to: the top surface of support frame is connected with two second fixed pulleys, one of them the second fixed pulley is located the top of steel sheet, another the second fixed pulley is located the top of jack, second wire rope sliding connection is on two second fixed pulleys.
Through adopting above-mentioned technical scheme, two second fixed pulleys are connected on the support frame, the effect of second fixed pulley mainly is the direction of changing force, two second fixed pulleys set up in the position of difference, make second wire rope form the shape of the font of falling U, second wire rope wherein one end is connected with the jack, the volume of jack itself is great, and need connect on comparatively firm position in its working process, so can change the direction of jack application force through the second fixed pulley, guarantee that left and right hook portion can comparatively steady slip in the testing process.
The utility model discloses further set up to: the output shaft of jack is connected with the U-shaped board, the opening part of U-shaped board is connected with the connecting rod, second wire rope one end is connected with the connecting rod.
Through adopting above-mentioned technical scheme, the connecting rod seals the opening of U-shaped board, then connects second wire rope on the connecting rod, the output shaft of the second wire rope of being convenient for and jack.
The utility model discloses further set up to: the support frame is relatively provided with a slide rail, and the slide rail is matched with the heavy hammer.
By adopting the technical scheme, after the heavy hammer is separated from the clamping of the left and right hook parts, the slide rail can limit the moving position of the heavy hammer when the heavy hammer falls, the falling of the heavy hammer to a target position is ensured, and the deviation condition is reduced, so that more accurate detection data can be obtained.
To sum up, the utility model discloses a beneficial technological effect does:
1. the process of clamping and lifting the counter weight and dropping the unhook is completed through the mutual matching of the positioning part and the driving part, the unhook difficulty is greatly reduced, and the labor intensity of workers is reduced;
2. the positioning pins are inserted in different positions on the positioning rods, so that the positions of the steel plates on the supporting frame are changed, and the steel plates are matched with the moving positions of the left hook part and the right hook part;
3. the first fixed pulley and the second fixed pulley respectively change the direction of force, so that the positions of the steel plate and the left and right hook parts can be conveniently changed;
4. after the heavy hammer is separated from the clamping of the left hook part and the right hook part, the slide rail can limit the moving position of the heavy hammer when the heavy hammer falls, the heavy hammer is guaranteed to fall to a target position, the deviation condition is reduced, and therefore accurate detection data can be obtained.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a top view of the support frame of the present invention.
Fig. 3 is a partially enlarged schematic view of a portion a in fig. 1.
FIG. 4 is a schematic diagram of the structure of the weight of the present invention.
Fig. 5 is a partial schematic structural diagram of the present invention.
In the figure, 1, a support frame; 11. a vertical rod; 12. a cross bar; 13. a horizontal bar; 14. a slide rail; 2. a weight; 21. mounting lugs; 22. mounting a pin; 3. a second fixed pulley; 4. a unhooking mechanism; 41. a steel plate; 42. a positioning part; 421. a first wire rope; 422. positioning a rod; 423. positioning holes; 424. positioning pins; 5. a hammer lifting mechanism; 51. a left hook portion; 52. a right hook portion; 53. a drive section; 531. a jack; 532. a second wire rope; 533. a U-shaped plate; 534. a connecting rod; 6. a first fixed pulley.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a high strain detection device, including support frame 1, support frame 1 includes the montant 11 of a plurality of vertical settings of setting up each other and the horizontal pole 12 of level setting, and under the condition of top view, on same water flat line, montant 11 is provided with threely, and three montant 11 that is located same water flat line is provided with the triplex row, and six montants 11 are connected subaerial promptly, then connect horizontal pole 12 on montant 11 to form support frame 1. The relative both sides of support frame 1 are connected with horizon bar 13, and horizon bar 13 is connected on adjacent montant 11, and horizon bar 13 provides the instrument of cat ladder for the operator, and the operator of being convenient for climbs support frame 1.
Referring to fig. 3 and 4, the weight further includes a weight 2, the top of the weight 2 is relatively fixed with mounting lugs 21, a mounting pin 22 is connected between the two mounting lugs 21, and a certain distance is formed between the mounting pin 22, the two mounting lugs 21 and the top of the weight 2; in order to limit the movement of the weight 2, a sliding rail 14 is fixed on the adjacent vertical rod 11, and the sliding rail 14 is matched with the weight 2.
The hammer lifting mechanism 5 is connected to the support frame 1 (refer to fig. 1) to drive the hammer 2 to vertically displace, the hammer lifting mechanism 5 comprises a left hook portion 51 and a right hook portion 52 hinged to the left hook portion 51, the middle portions of the left hook portion 51 and the right hook portion 52 are hinged to each other to form a scissor-type structure, the scissor-type structure is similar to a scissor-type structure, the side edge of the left hook portion 51 close to the right hook portion 52 is an arc-shaped portion, the side edge of the right hook portion 52 close to the left hook portion 51 is an arc-shaped portion, and the left hook portion 51 and the right hook portion 52 hinged to each other are matched to form. When the tip ends of the left and right hook portions 51 and 52 are urged to approach each other by the tip ends of the left and right hook portions 51 and 52, the mouth is opened; when the tip ends of the left and right hook portions 51, 52 are forced away from each other by the tip ends of the left and right hook portions 51, 52, the mouthpiece is closed and the mounting pin 22 is gripped by the mouthpiece.
Referring to fig. 1 and 3, the hammer lifting mechanism 5 further includes a driving portion 53 connected to the support frame 1 for driving the left and right hook portions 52 to move vertically, the driving portion 53 includes a jack 531 connected to the support frame 1 and two second wire ropes 532 respectively connected to the left and right hook portions 52, the jack 531 is vertically disposed and located on one side of the hammer 2, one of the two second wire ropes 532 is connected to an output shaft of the jack 531, and the other end of the two second wire ropes is connected to the tops of the left and right hook portions 52; because the jack 531 is vertically arranged, in order to make the movement of the jack 531 more stable, the top surface of the support frame 1 is connected with two second fixed pulleys 3, one of the second fixed pulleys 3 is located above the heavy hammer 2, the other second fixed pulley 3 is located above the jack 531, the two second fixed pulleys 3 are located on the same horizontal line, the second steel wire rope 532 is slidably connected to the two second fixed pulleys 3, the direction of the jack 531 is in the direction of the length of the jack 531, the movement direction of the heavy hammer 2 is in the direction of the length of the heavy hammer, and the jack 531 and the heavy hammer 2 are not on the same vertical line, so the second fixed pulley 3 plays a role in changing the force application direction of the jack 531.
Referring to fig. 5, the end of the output shaft of the jack 531 is connected with a U-shaped plate 533, the opening of the U-shaped plate 533 is disposed upward, a connecting rod 534 is connected to the opening of the U-shaped plate 533, the connecting rod 534 closes the opening of the U-shaped plate 533, the end of the second wire rope 532 is connected to the connecting rod 534, and when the second wire rope 532 needs to be replaced, the second wire rope 532 is convenient to replace by detaching the connecting rod 534.
Referring to fig. 1 and 3, a unhooking mechanism 4 matched with the hammer lifting mechanism 5 is connected to the support frame 1, the unhooking mechanism 4 comprises a steel plate 41 which vertically slides along the support frame 1, the hinged position of the left hook part 51 and the right hook part 52 is hinged to the steel plate 41 at the same time, and under the condition that the position of the steel plate 41 is not changed, the left hook part 51 and the right hook part 52 can rotate around the hinged position, so that the opening and closing effects of the clamping mouth are achieved.
Unhooking mechanism 4 is still including connecting location portion 42 on support frame 1, location portion 42 includes first wire rope 421, connect the locating lever 422 on support frame 1, locating lever 422 connects on montant 11, the interval is provided with a plurality of locating holes 423 that are located on the same vertical line on the locating lever 422, the one end of first wire rope 421 is connected on steel sheet 41, the other end is fixed with inserts locating pin 424 who establishes on locating hole 423, according to the position that steel sheet 41 removed, correspond locating pin 424 and peg graft locating hole 423 department at co-altitude.
The top surface of support frame 1 is connected with two first fixed pulleys 6, one of them first fixed pulley 6 is located steel sheet 41's top, another first fixed pulley 6 is located locating lever 422 top, first wire rope 421 sliding connection is on two first fixed pulleys 6, two first fixed pulleys 6 are located same water flat line, first wire rope 421 forms the shape of the font of falling U, first wire rope 421 is kept away from steel sheet 41's one end connection and is inserted the locating pin 424 of establishing on locating hole 423, through operator pulling this first wire rope 421 outside support frame 1 promptly make the locating pin 424 correspond and insert and establish different locating holes 423, thereby it pulls first wire rope 421 not need not the operator to climb support frame 1.
The implementation principle of the embodiment is as follows: the driving part 53 drives the left hook part 51 and the right hook part 52 to slide downwards to a proper position, the synchronous steel plate 41 slides downwards, the hinged parts of the left hook part 51 and the right hook part 52 are synchronously hinged on the steel plate 41, so the positions of the left hook part 51, the right hook part 52 and the steel plate 41 are determined, the clamping mouths of the left hook part 51 and the right hook part 52 at the initial positions can be opened, the opened clamping mouths can be aligned to the heavy hammer 2, then the driving part 53 drives the left hook part 51 and the right hook part 52 to move upwards, the hinged parts limit the left hook part 51 and the right hook part 52, the clamping mouths are tightened to clamp the top end of the heavy hammer 2, and the hinged parts of the left hook part 51 and the right hook part 52 form a certain angle until the; the movement of the driving part 53 makes the weight 2 move upwards, when moving to a certain height, the driving part 53 stops, the driving part 53 drives the left hook part 51 and the right hook part 52 to move downwards, because the position of the steel plate 41 is unchanged, the left hook part 51 and the right hook part 52 rotate around the hinged part, at the moment, the left hook part 51 and the right hook part 52 are separated from each other, the clamping mouth opens, the weight 2 is separated from the clamping mouth, the weight 2 drops under the action of gravity, so far, the process of clamping, lifting and unhooking and dropping the weight 2 is completed, the process is matched with each other through the positioning part 42 and the driving part 53, the difficulty of unhooking is greatly reduced, and the labor intensity of workers is reduced.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a high strain detection device, includes support frame (1), weight (2), connects on support frame (1) and drives the hammer mechanism (5) of carrying of weight (2) vertical displacement, connects on support frame (1) and carries hammer mechanism (5) matched with unhook mechanism (4), its characterized in that: unhooking mechanism (4) include along support frame (1) vertical gliding steel sheet (41), set up location portion (42) be connected with steel sheet (41) on support frame (1), carry hammer mechanism (5) including left hook portion (51), with left hook portion (51) articulated right hook portion (52) and connect drive left and right hook portion (52) vertical displacement's on support frame (1) drive portion (53), left hook portion (51) and right hook portion (52) form the scissor structure, the articulated department of left hook portion (51) and right hook portion (52) articulates on steel sheet (41), articulated each other left hook portion (51) and right hook portion (52) cooperation form the clamp mouth of pressing from both sides tight weight (2).
2. The high strain detection device of claim 1, wherein: the positioning part (42) comprises a first steel wire rope (421) and a positioning rod (422) connected to the support frame (1), one end of the first steel wire rope (421) is connected to the steel plate (41), and the other end of the first steel wire rope is provided with a positioning pin (424) inserted on the positioning rod (422).
3. A high strain sensing device according to claim 2, wherein: a plurality of positioning holes (423) located on the same vertical line are arranged on the positioning rod (422) at intervals, and the positioning holes (423) are matched with the positioning pins (424).
4. A high strain sensing device according to claim 3, wherein: the top surface of support frame (1) is connected with two first fixed pulleys (6), one of them first fixed pulley (6) are located the top of steel sheet (41), another first fixed pulley (6) are located locating lever (422) top, first wire rope (421) sliding connection is on two first fixed pulleys (6).
5. The high strain detection device of claim 1, wherein: the driving part (53) comprises a jack (531) connected to the support frame (1) and two second steel wire ropes (532) connected with the left hook part (52) and the right hook part (52) respectively, one end of each second steel wire rope (532) is connected with an output shaft of the jack (531), and the other end of each second steel wire rope is connected with the tops of the left hook part (52) and the right hook part (52) respectively.
6. The high strain detection device of claim 5, wherein: the top surface of support frame (1) is connected with two second fixed pulleys (3), one of them second fixed pulley (3) are located the top of steel sheet (41), another second fixed pulley (3) are located the top of jack (531), second wire rope (532) sliding connection is on two second fixed pulleys (3).
7. The high strain detection device of claim 6, wherein: the output shaft of jack (531) is connected with U-shaped board (533), the opening part of U-shaped board (533) is connected with connecting rod (534), second wire rope (532) one end is connected with connecting rod (534).
8. The high strain detection device of claim 1, wherein: the support frame (1) is relatively provided with a slide rail (14), and the slide rail (14) is matched with the heavy hammer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921032634.XU CN210180844U (en) | 2019-07-03 | 2019-07-03 | High strain detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921032634.XU CN210180844U (en) | 2019-07-03 | 2019-07-03 | High strain detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210180844U true CN210180844U (en) | 2020-03-24 |
Family
ID=69839986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921032634.XU Active CN210180844U (en) | 2019-07-03 | 2019-07-03 | High strain detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210180844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693384A (en) * | 2020-06-18 | 2020-09-22 | 杭州大地工程测试技术有限公司 | Equipment for pile foundation high strain detection and detection method using equipment |
-
2019
- 2019-07-03 CN CN201921032634.XU patent/CN210180844U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693384A (en) * | 2020-06-18 | 2020-09-22 | 杭州大地工程测试技术有限公司 | Equipment for pile foundation high strain detection and detection method using equipment |
| CN111693384B (en) * | 2020-06-18 | 2022-12-06 | 杭州大地工程测试技术有限公司 | Equipment for pile foundation high strain detection and detection method using equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018014466A1 (en) | Drop hammer height adjusting device used for high strain detection of pile foundation | |
| CN210180844U (en) | High strain detection device | |
| CN110954452A (en) | TBM (tunnel boring machine) carrying type test device and method for automatically obtaining particle size and strength characteristics of rock slag | |
| CN114101099A (en) | Performance detection device for automobile part production and use method thereof | |
| CN209198106U (en) | A kind of well lid loading test instrument | |
| CN107954314A (en) | A kind of intelligent suspender of exhaust pipe of engine assembling | |
| CN208234384U (en) | A kind of heavy caliber pipe hanging apparatus | |
| CN106124155A (en) | A kind of drop hammer impact testing machine | |
| CN110926953A (en) | Pressure detection mechanism of cement pressure plate | |
| CN206056909U (en) | A kind of drop hammer impact testing machine | |
| CN211147328U (en) | Furnace door lifting device of heating furnace | |
| CN201990369U (en) | Scissors type pipe pile mould lifting tool | |
| CN210180843U (en) | Scissors type high strain detection device | |
| CN207331784U (en) | A kind of foundation pile high stress detection device | |
| CN210238601U (en) | Lever type high-strain detection device | |
| CN110927061A (en) | Crucible crack detection system | |
| CN210166247U (en) | Pulley type high strain detection device | |
| CN212803202U (en) | Construction engineering pile hole aperture detection device convenient to measure | |
| CN206459841U (en) | A kind of coal samling mechanism | |
| CN217174959U (en) | Bad foundation bearing capacity check out test set | |
| CN212292504U (en) | Special hanging bracket for heating plate for wood heat treatment | |
| CN207262940U (en) | A kind of aluminium melting furnace | |
| CN219314250U (en) | Safety rope tensioning device for safety lock falling experiment | |
| CN213682246U (en) | Self-releasing clamp for lifting high-strain pile measuring | |
| CN211374476U (en) | Crucible crack detection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |