阅读说明：本技术 一种建筑检测用便携式测平装置 (Building detects with portable levelling device ) 是由 汪长鑫 于 2021-08-10 设计创作，主要内容包括：本发明涉及建筑检测设备技术领域,具体涉及一种建筑检测用便携式测平装置,包括箱体,箱体的顶端固定有外部机构,外部机构包括第一固接块、第二固接块、盖子、置件板、第一嵌合杆、拉块和橡胶块,箱体的顶端固定有第一固接块,箱体的右侧固定有第二固接块,且第二固接块的内侧插设有盖子。本发明设置有第五固接块和第三连接杆,配合第六固接块和第三固接板使装置方便进行折叠,方便进行携带,向外侧拉动拉手,使第四连接杆脱离第三连接杆的内部,然后可以对第三固接板进行转动,第四连接杆可以在第三固接板转动后对第三固接板进行固定,方便第三固接板的展开与收纳,提高装置的便携性,提高装置的工作效率。(The invention relates to the technical field of building detection equipment, in particular to a portable leveling device for building detection, which comprises a box body, wherein an external mechanism is fixed at the top end of the box body, the external mechanism comprises a first fixing block, a second fixing block, a cover, a piece placing plate, a first embedding rod, a pulling block and a rubber block, the first fixing block is fixed at the top end of the box body, the second fixing block is fixed at the right side of the box body, and the cover is inserted into the inner side of the second fixing block. The device is provided with the fifth fixing block and the third connecting rod, the device is conveniently folded and carried by matching the sixth fixing block and the third connecting rod, the handle is pulled outwards to separate the fourth connecting rod from the inside of the third connecting rod, then the third fixing plate can be rotated, the fourth connecting rod can fix the third fixing plate after the third fixing plate is rotated, the third fixing plate is conveniently unfolded and stored, the portability of the device is improved, and the working efficiency of the device is improved.)

1. The utility model provides a building detects with portable levelling device, includes box (1), its characterized in that: the top end of the box body (1) is fixed with an external mechanism (2), the external mechanism (2) comprises a first fixed connecting block (210) fixed at the top end of the box body (1), the upper end and the lower end of the right side of the box body (1) are both fixed with second fixed connecting blocks (220), a cover (230) is inserted between the two second fixed connecting blocks (220), the bottom end of the box body (1) is hinged with a piece placing plate (240), the lower part of the box body (1) is provided with a chamber for accommodating the piece placing plate, the piece placing plate (240) is provided with a left group and a right group, the inside of the box body (1) is provided with a holding tank, a leveling mechanism (5) for detecting the flatness of a building is accommodated in the holding tank, the leveling mechanism (5) comprises a bubble level gauge (510), and the leveling mechanism (5) is connected with an adjusting mechanism (3) through a folding mechanism (4), the adjusting mechanism (3) is used for adjusting the height of the leveling mechanism (5), the adjusting mechanism (3) comprises a second fixing and connecting plate (370), a coordination groove matched with the first fixing and connecting block (210) is formed in the second fixing and connecting plate (370), when the adjusting mechanism (3), the folding mechanism (4) and the leveling mechanism (5) are taken out of the accommodating groove, the first fixing rod (210) can be inserted into the coordination groove, the folding mechanism (4) comprises two states, and when the adjusting mechanism (3), the folding mechanism (4) and the leveling mechanism (5) are in the first state, the length direction of the bubble level gauge (510) is parallel to the second fixing and connecting plate (370) and used for detecting a horizontal building plane; when in the second state, the length direction of the bubble level gauge (510) is perpendicular to the second fixing plate (370) and is used for detecting a vertical building plane.

2. The portable leveling device for building detection according to claim 1, wherein: the adjusting mechanism (3) further comprises a first fixed connecting plate (310) received in the receiving groove, and a first connecting rod (320) is inserted into the first fixing plate (310) through a bearing seat, a rotating handle (330) is fixed on the right side of the first connecting rod (320), two third fixing blocks (340) are sleeved on the surface of the first connecting rod (320), two sections of threads with opposite rotation directions are arranged on the first connecting rod (320), the two third fixing blocks (340) are respectively sleeved on thread sections with different rotation directions, the top ends of the third fixing blocks (340) are respectively fixed with a fourth fixing block (350), the bottom end of the third fixed connecting block (340) is hinged with a second connecting rod (360), and the bottom end of the second connecting rod (360) is hinged with a second fixed connecting plate (370), and a rubber pad (380) is fixed at the bottom end of the second fixed connecting plate (370).

3. The portable leveling device for building detection according to claim 2, wherein: the folding mechanism (4) comprises a fifth fixing and connecting block (410) fixed at the top end of the first fixing and connecting plate (310), a third connecting rod (420) is inserted into the fifth fixing and connecting block (410) through a bearing seat, a sixth fixing and connecting block (430) is fixedly sleeved on the surface of the third connecting rod (420), a third fixing and connecting plate (440) is fixed at the top end of the sixth fixing and connecting block (430), a fourth connecting rod (450) is inserted into the third connecting rod (420), a seventh fixing and connecting block (460) is fixed on one side, away from the third connecting rod (420), of the fourth fixing and connecting block (460), a pull handle (470) is fixed on one side, away from the fourth connecting rod (450), of the seventh fixing and connecting block (460) is fixed with a fifth connecting rod (480) close to the fourth connecting rod (450), and a second embedding rod (490) is inserted into the fifth connecting rod (480), a first buffer spring (4100) is sleeved on the surface of the second embedding rod (490), the leveling mechanism (5) is inserted into the third fixing and connecting plate (440), the handle (470) is pulled to release the limitation of the fourth connecting rod (450) on the third fixing and connecting plate (440), the folding mechanism (4) can be in the first state by adjusting the third fixing and connecting plate (440) to be parallel to the second fixing and connecting plate (370), and when the third fixing and connecting plate (440) is perpendicular to the second fixing and connecting plate (370), the folding mechanism (4) is in the second state.

4. The portable leveling device for building detection according to claim 3, wherein: the leveling mechanism (5) further comprises an eighth fixing and connecting block (520) fixed inside the third fixing and connecting plate (440), a sixth connecting rod (530) is further inserted inside the third fixing and connecting plate (440), a fourth fixing and connecting plate (540) is fixed on the left side of the sixth connecting rod (530), one end, far away from the sixth connecting rod (530), of the fourth fixing and connecting plate (540) abuts against the bubble level gauge (510), a second buffer spring (550) is sleeved on the surface of the sixth connecting rod (530), a ninth fixing and connecting block (560) is fixed on the right side of the sixth connecting rod (530), and a cushion block (570) is fixed at the bottom end of the third fixing and connecting plate (440).

5. The portable leveling device for building detection according to claim 1, wherein: the left side put the inside of a board (240) and inserted and be equipped with first gomphosis pole (250), gomphosis pole (250) slide set up in put a board (240), the bottom mounting of first gomphosis pole (250) has pull piece (260), and the right side put the inside of a board (240) and be fixed with rubber block (270), rubber block (270) orientation one side of first gomphosis pole (250) is provided with gomphosis pole groove, first gomphosis pole (250) can insert in the gomphosis pole groove.

6. The portable leveling device for building detection according to claim 2, wherein: the upper end of the second fixed connection plate (370) is provided with two connection lugs (390), the two second connecting rods (360) are respectively hinged to the two connection lugs (390), and at least one connection lug (390) is connected with a connection long hole (3100) arranged on the second fixed connection plate (370) through a fastening bolt.

7. The portable leveling device for building detection according to claim 3, wherein: the left sides of the first fixed connecting plate (310) and the third fixed connecting plate (440) are of an inclined structure, and when the folding mechanism (4) is in the second state, the inclined surface of the third fixed connecting plate (440) is attached to and abutted against the inclined surface of the first fixed connecting plate (310).

8. The portable leveling device for building detection according to claim 4, wherein: the fourth connecting rod (450) is of a diamond structure, the top end of the second embedding rod (490) is of a triangular structure, two groups of holes matched with the second embedding rod (490) are formed in the fifth connecting rod (480), and the second embedding rod (490) is inserted into the fifth connecting rod (480).

9. The portable leveling device for building detection according to claim 4, wherein: a limiting groove is formed in the position of the second buffer spring (550) on the third fixing plate (440), one side of the second buffer spring (550) is fixedly connected with a ninth fixing block (560), the ninth fixing block (560) is tightly abutted to the notch of the limiting groove, a notch is formed in the bottom end of the left side of the ninth fixing block (560), and the other side of the second buffer spring (550) is fixedly arranged on the side wall, far away from the ninth fixing block, of the limiting groove.

10. The portable leveling device for building detection according to claim 4, wherein: the upper surface of box is in the both sides of first solid piece (210) of connecing are provided with two spacing slide rails (280) respectively, correspond be provided with two spacing spout (3110) on second solid fishplate bar (370), two spacing slide rail can block establish correspond in the spacing spout, just be provided with on second solid fishplate bar (370) and be used for with second solid fishplate bar (370) is fixed fixing bolt (3120) on the slide rail.

Technical Field

The invention relates to the technical field of building detection equipment, in particular to a portable leveling device for building detection.

Background

The existing leveling device can detect whether the wall surface is inclined or not, but has the defects that the existing leveling device is large in size and inconvenient to carry, and a user needs to frequently move the existing leveling device when testing with the existing leveling device, so that pressure is brought to users; in addition, the existing leveling device can only detect the levelness of a horizontal building surface or the verticality of a vertical building surface generally, and therefore a portable leveling device for building detection is provided to solve the problems.

Disclosure of Invention

The invention aims to provide a portable leveling device for building detection, which aims to solve the problems that the existing device in the background technology is insufficient in portability, and the existing device can shake when measuring a special wall surface to influence a measuring result.

In order to achieve the purpose, the invention provides the following technical scheme: a portable leveling device for building detection comprises a box body, wherein an external mechanism is fixed at the top end of the box body, the external mechanism comprises a first fixing block fixed at the top end of the box body, second fixing blocks are fixed at the upper end and the lower end of the right side of the box body, a cover is inserted between the two second fixing blocks, a placing plate is hinged to the bottom end of the box body, a cavity for accommodating the placing plate is formed in the lower portion of the box body, the placing plate is provided with a left group and a right group, a containing groove is formed in the box body, a leveling mechanism for detecting the flatness of a building is contained in the containing groove, the leveling mechanism comprises a bubble level gauge, the leveling mechanism is connected with an adjusting mechanism through a folding mechanism, the adjusting mechanism is used for adjusting the height of the leveling mechanism, and the adjusting mechanism comprises a second fixing plate, the second fixing plate is provided with a coordination groove matched with the first fixing block, when the adjusting mechanism, the folding mechanism and the leveling mechanism are taken out of the accommodating groove, the first fixing rod can be inserted into the coordination groove, the folding mechanism comprises two states, and when the second fixing plate is in the first state, the length direction of the bubble level gauge is parallel to the second fixing plate and used for detecting a horizontal building plane; when the bubble level is in the second state, the length direction of the bubble level is perpendicular to the second fixed connection plate and used for detecting a vertical building plane.

Preferably, the adjusting mechanism further comprises a first fixing plate accommodated in the accommodating groove, a first connecting rod is inserted into the first fixing plate through a bearing seat, a rotating handle is fixed on the right side of the first connecting rod, two third fixing blocks are sleeved on the surface of the first connecting rod, two sections of threads in opposite rotating directions are arranged on the first connecting rod, the third fixing blocks are respectively sleeved on thread sections in different rotating directions, a fourth fixing block is fixed at the top end of each third fixing block, a second connecting rod is hinged to the bottom end of each third fixing block, a second fixing plate is hinged to the bottom end of each second connecting rod, and a rubber pad is fixed at the bottom end of each second fixing plate.

Preferably, the folding mechanism comprises a fifth fixing block fixed at the top end of the first fixing plate, a third connecting rod is inserted into the fifth fixing block through a bearing seat, a sixth fixing block is fixedly sleeved on the surface of the third connecting rod, a third fixing plate is fixed at the top end of the sixth fixing block, a fourth connecting rod is inserted into the third connecting rod, a seventh fixing block is fixed on one side of the fourth connecting rod far away from the third connecting rod, a handle is fixed on one side of the seventh fixing block far away from the fourth connecting rod, a fifth connecting rod is fixed on one side of the seventh fixing block close to the fourth connecting rod, a second embedding rod is inserted into the fifth connecting rod, a first buffer spring is sleeved on the surface of the second embedding rod, the leveling mechanism is inserted into the third fixing plate, the handle is pulled to release the limit of the fourth connecting rod on the third fixing plate, adjusting the third fixing plate to be parallel to the second fixing plate can enable the folding mechanism to be in the first state, and when the third fixing plate is perpendicular to the second fixing plate, the folding mechanism is in the second state.

Preferably, the leveling mechanism further comprises an eighth fixed connection block fixed inside the third fixed connection plate, a sixth connection rod is further inserted inside the third fixed connection plate, a fourth fixed connection plate is fixed on the left side of the sixth connection rod, one end, far away from the sixth connection rod, of the fourth fixed connection plate abuts against the bubble level, a second buffer spring is sleeved on the surface of the sixth connection rod, a ninth fixed connection block is fixed on the right side of the sixth connection rod, and a cushion block is fixed at the bottom end of the third fixed connection plate.

Preferably, a first embedding rod is inserted into the left side of the element placing plate, the embedding rod is arranged in the element placing plate in a sliding mode, a pulling block is fixed to the bottom end of the first embedding rod, a rubber block is fixed to the right side of the element placing plate, an embedding rod groove is formed in one side, facing the first embedding rod, of the rubber block, and the first embedding rod can be inserted into the embedding rod groove.

Preferably, the upper end of the second fixed connection plate is provided with two connection lugs, the two second connecting rods are respectively hinged to the two connection lugs, and at least one connection lug is connected with a connection long hole formed in the second fixed connection plate through a fastening bolt.

Preferably, left sides of the first fixed connecting plate and the third fixed connecting plate are of an inclined structure, and when the folding mechanism is in the second state, an inclined surface of the third fixed connecting plate is attached to and abutted against an inclined surface of the first fixed connecting plate.

Preferably, the fourth connecting rod is of a diamond structure, the top end of the second embedded rod is of a triangular structure, two groups of holes matched with the second embedded rod are formed in the fifth connecting rod, and the second embedded rod is inserted in the fifth connecting rod.

Preferably, a limiting groove is formed in the position of the second buffer spring on the third fixing plate, one side of the second buffer spring is fixedly connected with a ninth fixing block, the ninth fixing block abuts against the notch of the limiting groove, a notch is formed in the bottom end of the left side of the ninth fixing block, and the other side of the second buffer spring is fixedly arranged on the side wall, far away from one side of the ninth fixing block, of the limiting groove.

Preferably, the upper surface of the box body is provided with two limiting slide rails on two sides of the first fixing and connecting block respectively, two limiting slide grooves are arranged on the second fixing and connecting plate correspondingly, the two limiting slide rails can be clamped and arranged in the corresponding limiting slide grooves, and fixing bolts used for fixing the second fixing and connecting plate on the slide rails are arranged on the second fixing and connecting plate.

Compared with the prior art, the invention has the beneficial effects that:

(1) the device is provided with a fifth fixing and connecting block and a third connecting rod, the device is conveniently folded by matching with the sixth fixing and connecting block and the third fixing and connecting plate and is convenient to carry, a handle is pulled outwards to separate the fourth connecting rod from the inside of the third connecting rod, then the third fixing and connecting plate can be rotated, the fourth connecting rod can fix the third fixing and connecting plate after the third fixing and connecting plate rotates, the third fixing and connecting plate is convenient to unfold and store, the portability of the device is improved, and the working efficiency of the device is improved;

(2) the device is provided with a first fixing block and a second fixing block which are matched with a rotating hand and a third fixing block, so that the height of the device can be adjusted, the height of the device can be adjusted when the device needs to measure the inclination of a high place, the wall surface is tested, the third fixing block is moved by rotating the rotating hand, a second fixing plate is moved, the height of the device is adjusted, and the working efficiency of the device is improved;

(3) the device is provided with a folding mechanism, when the folding mechanism is in a first state, the length direction of the bubble level gauge is parallel to the second fixed connection plate and is used for detecting the horizontal building plane; when the bubble level is in the second state, the length direction of the bubble level is perpendicular to the second fixed connection plate and used for detecting the vertical building plane.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic sectional elevation view of the structure of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic side sectional view of a fourth connecting rod according to the present invention;

FIG. 4 is a schematic sectional front view of a fourth connecting rod according to the present invention;

FIG. 5 is a schematic sectional view of the structure in a first working state of the present invention;

FIG. 6 is a schematic side cross-sectional view of the bubble level of FIG. 5 in accordance with the present invention;

FIG. 7 is a schematic sectional view of the structure in a second working state of the present invention;

fig. 8 is a schematic view illustrating a connection between the first fastening block and the second fastening plate according to another embodiment of the present invention.

In the figure: 1. a box body; 2. an external mechanism; 210. a first fixed block; 220. a second fixed block; 230. a cover; 240. a workpiece placing plate; 250. a first fitting rod; 260. pulling the block; 270. a rubber block; 280. a limiting slide rail; 3. an adjustment mechanism; 310. a first fixed connection plate; 320. a first connecting rod; 330. turning the hand; 340. a third fixed connection block; 350. a fourth fixed connection block; 360. a second connecting rod; 370. a second fixed connection plate; 380. a rubber pad; 390. connecting lugs; 3100. connecting the long holes; 3110. a limiting chute; 3120. fixing the bolt; 4. a folding mechanism; 410. a fifth fixed connection block; 420. a third connecting rod; 430. a sixth fixed connection block; 440. a third fixed connection plate; 450. a fourth connecting rod; 460. a seventh fixed connection block; 470. a handle; 480. a fifth connecting rod; 490. a second fitting rod; 4100. a first buffer spring; 5. a leveling mechanism; 510. a bubble level; 520. an eighth fixed connection block; 530. a sixth connecting rod; 540. a fourth fixed connection plate; 550. a second buffer spring; 560. a ninth fixed connection block; 570. and a cushion block.

The specific implementation mode is as follows:

the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-8, an embodiment of the present invention: a portable leveling device for building detection comprises a box body 1, an external mechanism 2 is fixed at the top end of the box body 1, the external mechanism 2 comprises a first fixing block 210, a second fixing block 220, a cover 230, a piece placing plate 240, a first embedding rod 250, a pulling block 260 and a rubber block 270, the first fixing block 210 is fixed at the top end of the box body 1, the second fixing block 220 is fixed at the upper and lower ends of the right side of the box body 1, the cover 230 is inserted in the inner side of the second fixing block 220, the piece placing plate 240 is hinged at the bottom end of the box body 1, a chamber for accommodating the piece placing plate is formed in the lower portion of the box body 1, the piece placing plate 240 is provided with a left group and a right group, the first embedding rod 250 is inserted in the left piece placing plate 240, the embedding rod 250 is slidably arranged in the piece placing plate 240, the pulling block 260 is fixed at the bottom end of the first embedding rod 250, the rubber block 270 is fixed in the right piece placing plate 240, an embedding rod groove is formed in one side, facing the first embedding rod 250, of the rubber block 270, the first fitting rod 250 can be inserted into the fitting rod groove.

The interior of the box body 1 is provided with an accommodating groove, a leveling mechanism 5 for detecting the flatness of a building is accommodated in the accommodating groove, the leveling mechanism 5 comprises a bubble level gauge 510, the leveling mechanism 5 is connected with an adjusting mechanism 3 through a folding mechanism 4, the adjusting mechanism 3 is used for adjusting the height of the leveling mechanism 5, the adjusting mechanism 3 comprises a second fixing plate 370, a coordination groove matched with the first fixing block 210 is formed in the second fixing plate 370, when the adjusting mechanism 3, the folding mechanism 4 and the leveling mechanism 5 are taken out of the accommodating groove, the first fixing rod 210 can be inserted into the coordination groove, the folding mechanism 4 comprises two states, and when the adjusting mechanism 3, the folding mechanism 4 and the leveling mechanism 5 are in the first state, the length direction of the bubble level gauge 510 is parallel to the second fixing plate 370 and is used for detecting the horizontal building plane; when in the second state, the length direction of the bubble level 510 is perpendicular to the second fastening plate 370 for detecting a vertical building plane.

Specifically, the adjusting mechanism 3 is inserted into the box 1, the adjusting mechanism 3 includes a first fixing plate 310, a first connecting rod 320, a rotating handle 330, a third fixing block 340, a fourth fixing block 350, a second connecting rod 360, a second fixing plate 370 and a rubber pad 380, the first fixing plate 310 is inserted into the box 1, the first connecting rod 320 is inserted into the first fixing plate 310 through a bearing seat, the rotating handle 330 is fixed to the right side of the first connecting rod 320, the third fixing block 340 is sleeved on the surface of the first connecting rod 320, the fourth fixing block 350 is fixed to the top end of the third fixing block 340, the second connecting rod 360 is hinged to the bottom end of the third fixing block 340, the second fixing plate 370 is hinged to the bottom end of the second connecting rod 360, and the rubber pad 380 is fixed to the bottom end of the second fixing plate 370.

A folding mechanism 4 is fixed at the top end of the first fixing plate 310, the folding mechanism 4 comprises a fifth fixing block 410, a third connecting rod 420, a sixth fixing block 430, a third fixing block 440, a fourth connecting rod 450, a seventh fixing block 460, a handle 470, a fifth connecting rod 480, a second embedding rod 490 and a first buffer spring 4100, the fifth fixing block 410 is fixed at the top end of the first fixing plate 310, the third connecting rod 420 is inserted in the fifth fixing block 410 through a bearing seat, the sixth fixing block 430 is fixedly sleeved on the surface of the third connecting rod 420, the third fixing block 440 is fixed at the top end of the sixth fixing block 430, the fourth connecting rod 450 is inserted in the third connecting rod 420, the seventh fixing block 460 is fixed at one side of the fourth connecting rod 450 far away from the third connecting rod 420, the handle 470 is fixed at one side of the seventh fixing block 460 far away from the fourth connecting rod 450, the fifth connecting rod 480 is fixed at one side of the seventh fixing block 460 close to the fourth connecting rod 450, a second engagement rod 490 is inserted into the fifth link 480, and a first damper spring 4100 is fitted to the surface of the second engagement rod 490.

The leveling mechanism 5 is inserted in the third fixing and connecting plate 440, the leveling mechanism 5 comprises a bubble level gauge 510, an eighth fixing and connecting block 520, a sixth connecting rod 530, a fourth fixing and connecting plate 540, a second buffer spring 550, a ninth fixing and connecting block 560 and a cushion block 570, the bubble level gauge 510 is inserted in the third fixing and connecting plate 440, the eighth fixing and connecting block 520 is fixed in the third fixing and connecting plate 440, the sixth connecting rod 530 is inserted in the third fixing and connecting plate 440, the fourth fixing and connecting plate 540 is fixed on the left side of the sixth connecting rod 530, the second buffer spring 550 is sleeved on the surface of the sixth connecting rod 530, the ninth fixing and connecting block 560 is fixed on the right side of the sixth connecting rod 530, and the cushion block 570 is fixed at the bottom end of the third fixing and connecting plate 440.

Specifically, a limiting groove is formed in the position of the second buffer spring 550 on the third fixing plate 440, one side of the second buffer spring 550 is fixedly connected with the ninth fixing block 560, the ninth fixing block 560 abuts against the notch of the limiting groove, a notch is formed in the bottom end of the left side of the ninth fixing block 560, and the other side of the second buffer spring 550 is fixedly arranged on the side wall of the limiting groove far away from the ninth fixing block.

Further, left sides of the first fixing plate 310 and the third fixing plate 440 are inclined structures, and when the folding mechanism 4 is in the second state, an inclined surface of the third fixing plate 440 is engaged with and abutted against the inclined surface of the first fixing plate 310, preferably, an inclined angle of the left side of the first fixing plate 310 is forty-five degrees, an inclined angle of the left side of the third fixing plate 440 is also forty-five degrees, a fourth connecting rod 450 is a diamond structure, the fourth connecting rod 450 is inserted into the third connecting rod 420, a top end of the second engaging rod 490 is a triangular structure, two groups of holes adapted to the second engaging rod 490 are formed in the fifth connecting rod 480, the second engaging rod 490 is inserted into the fifth connecting rod 480, the handle 470 is shifted to the outside, so that the fourth connecting rod 450 and the fifth connecting rod 480 are moved simultaneously, and the second engaging rod 490 is moved under the extrusion of the fifth connecting rod 480, the second engaging rod 490 is inserted into another hole in the fifth connecting rod 480 under the elastic force of the first buffer spring 4100, at this time, the fourth connecting rod 450 is separated from the inside of the third connecting rod 420, the third fixing and connecting plate 440 can be rotated, the left sides of the third fixing and connecting plate 440 and the first fixing and connecting plate 310 are inclined planes, and a ninety-degree right angle is formed by abutting, and then the fourth connecting rod 450 is inserted into the inside of the third connecting rod 420, so that the third fixing and connecting plate 440 is fixed, the opening and the storage of the device are completed, the portability of the device is improved, and the working efficiency of the device is improved;

furthermore, the surface of the first connecting rod 320 is provided with threads, a threaded hole matched with the first connecting rod 320 is formed in the third fixing block 340, the first connecting rod 320 is inserted in the third fixing block 340, the third fixing block 340 is driven to move when the first connecting rod 320 rotates, the fourth fixing block 350 is connected with the first fixing plate 310 in a sliding mode, the third fixing block 340 is limited, the third fixing block 340 cannot rotate, the second fixing plate 370 is jacked up when the third fixing block 340 moves, the height of the device is adjusted, the working adaptability of the device is improved, and the working efficiency of the device is improved;

furthermore, two sets of eighth fixing blocks 520 are provided, and two sets of eighth fixing blocks 520 are horizontally fixed inside the third fixing plate 440, the left side of the second buffer spring 550 is fixedly connected with the third fixing plate 440, the right side of the second buffer spring 550 is fixedly connected with the ninth fixing block 560, the bottom end of the left side of the ninth fixing block 560 is provided with a notch, the ninth fixing block 560 is inserted inside the third fixing plate 440, because the device generally works on the workplace, the number of mud knots on the ground is large, the device is judged whether to incline or not by observing whether the water inside the bubble level 510 and the eighth fixing block 520 are horizontal, the measurement accuracy of the device is improved, the ninth fixing block 560 is pulled through the notch, the sixth connecting rod 530 can move, the fourth fixing plate 540 can move, the bubble level 510 can be taken down, and the bubble level 510 can be replaced, when putting into again, fourth fixed plate 540 can be fixed bubble level 510 under the effect of second buffer spring 550, improves the measurement accuracy of device, improves the work efficiency of device.

In some embodiments, as shown in fig. 8, the second fastening plate 370 is provided at an upper end thereof with two engaging lugs 390, two second links 360 are respectively hinged to the two engaging lugs 390, and at least one of the engaging lugs 390 is connected to an elongated connecting hole 3100 provided in the second fastening plate 370 by a fastening bolt. In such an embodiment, when the levelness of the bubble level needs to be corrected, the levelness of the second fixing plate 370 can be indirectly adjusted, and at this time, the levelness of the de-bubble level can be finely adjusted by adjusting different positions of the connecting lugs 390 in the connecting long holes 3100, so that the levelness of the bubble level can be corrected.

In some embodiments, as shown in fig. 8 again, two limit sliding rails are respectively disposed on two sides of the fixing block 210 on the upper surface of the box body, two limit sliding grooves are disposed on the corresponding second fixing plate 370, the two limit sliding rails can be clamped in the corresponding limit sliding grooves, and fixing bolts for fixing the second fixing plate 370 on the sliding rails are disposed on the second fixing plate 370. The arrangement can conveniently fix the second fixing and connecting plate 370 on the first fixing and connecting block 210, and can further ensure the stability of the second fixing and connecting plate 370 connected with the first fixing and connecting block 210, thereby ensuring the leveling accuracy.

The working principle is as follows: when the device works, the cover 230 is pulled down, the first fixing and connecting plate 310 is taken out, if the levelness of a horizontal building surface needs to be detected, the second fixing and connecting plate 370 is directly and fixedly arranged on the first fixing and connecting block 210, the third fixing and connecting plate 440 is parallel to the second fixing and connecting plate 370 at the moment, the length direction of the bubble level is parallel to the second fixing and connecting plate and are transversely arranged, and the horizontal building surface can be detected at the moment; when the vertical building surface needs to be detected, the handle 470 is pulled outwards to separate the fourth connecting rod 450 from the third connecting rod 420, so that the second embedding rod 490 is inserted into another hole of the fifth connecting rod 480, then the third fixing plate 440 is rotated ninety degrees, and the handle 470 is pushed, the fourth connecting rod 450 is inserted into the third connecting rod 420 to be fixed, so that the third connecting rod 420 cannot be rotated, the third fixing plate 440 cannot be rotated, the device is placed at a corner, the levelness of the wall surface is measured, the levelness of the water inside the bubble level gauge 510 and the eighth fixing block 520 is observed, or observing the change of the angle between the third fastening plate 440 and the building surface, it can be determined that the device is not inclined, and pulling the ninth fastening block 560 can move the fourth fastening plate 540 to take out the bubble level 510 for replacing the bubble level 510 with different specifications.

The rotating hand 330 is rotated to rotate the first connecting rod 320, the first connecting rod 320 is in threaded connection with the third fixing block 340, the fourth fixing block 350 limits the third fixing block 340, the third fixing block 340 moves, the second fixing plate 370 is jacked up to adjust the height of the device, as shown in fig. 5, when the height is not enough, the first fixing block 210 can be inserted into the second fixing plate 370, then the pulling block 260 is pulled leftwards to move the first embedding rod 250, the placing plate 240 is unfolded, as shown in fig. 7, when the first fixing plate 310 and the third fixing plate 440 are placed into the box 1 again, the second fixing block 220 is in an inclined structure, and the second fixing block 220 can hang up dust on the outer sides of the third fixing plate 440 and the first fixing plate 310 to prevent dust from being accumulated on the device, which is the whole working principle of the invention.