CN113605718A

CN113605718A - Leather counting rod device for controlling flatness of masonry

Info

Publication number: CN113605718A
Application number: CN202110905372.9A
Authority: CN
Inventors: 谢亮
Original assignee: Tibet Vocational Technical College
Current assignee: Tibet Vocational Technical College
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2021-11-05
Anticipated expiration: 2041-08-09
Also published as: CN113605718B

Abstract

The invention discloses a skin number rod device for controlling the flatness of a masonry, which comprises a horizontal base and a skin number rod in threaded connection with a right front corner at the top of the horizontal base, wherein the left side and the rear side of the skin number rod are connected with the left front corner and the right rear corner at the top of the horizontal base through a verticality adjusting rod. This several pole device of skin of control brickwork roughness, through setting up evagination level alignment telescopic mechanism and level alignment elevating system, level alignment fixture that utilizes on it can fix the level alignment, be convenient for carry out the level calibration when a wall body is built by laying bricks or stones, evagination level alignment telescopic mechanism and level alignment elevating system install on alignment lift sleeve simultaneously, can rise along with it, and then can be along with the piling of every layer of fragment of brick and step up gradually, sustainable calibration, the roughness of brickwork has been guaranteed, and set up evagination level alignment telescopic mechanism, still can calibrate evaginations such as wall body moulding, application scope is wide, adjustment convenient to use is swift.

Description

Leather counting rod device for controlling flatness of masonry

Technical Field

The invention relates to the technical field of building construction, in particular to a leather counting rod device for controlling the flatness of a masonry.

Background

The construction is a production movement performed by people to construct various building products in a certain space and time according to a specific design blueprint by using various building materials and mechanical equipment. The method comprises the whole production process from construction preparation, earth breaking and engineering completion acceptance. In the process, construction preparation, construction organization design and management, earthwork engineering, blasting engineering, foundation engineering, reinforcing steel bar engineering, template engineering, scaffold engineering, concrete engineering, prestressed concrete engineering, masonry engineering, steel structure engineering, wood structure engineering, structure installation engineering and the like are carried out.

In the brickwork is built, generally all need draw the water flat line, generally through supporting supplementary building with instruments such as ink marker plummet, keep the roughness of wall brick according to water flat line during the brickwork, but along with the increase of the number of piles, the height of water flat line also need be adjusted, and still need recalibrate the levelness after the adjustment height at every turn, and is comparatively troublesome, and work efficiency is low, especially to having the building of evagination, has further improved the degree of difficulty of level calibration.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a leather counting rod device for controlling the flatness of a masonry, and solves the problems that the operation of pulling a horizontal line is troublesome and the working efficiency is low in masonry construction.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a control brickwork roughness's skin number pole device, includes horizontal base and top right front angle threaded connection's skin number pole, the left side and the rear side of skin number pole are all connected through the straightness regulation pole that hangs down with the left front angle and the right rear angle at horizontal base top, and the positive fixedly connected with blade scale steel ruler of skin number pole, the outside slip cap of skin number pole and blade scale steel ruler is equipped with alignment lift sleeve, and the positive top threaded connection of alignment lift sleeve has lift sleeve to make tight bolt, the outer convex horizontal alignment telescopic machanism that the bottom fixedly connected with on alignment lift sleeve right side extends forward, fixedly connected with level alignment lifting machanism between alignment lift sleeve right side and outer convex horizontal alignment telescopic machanism's the top.

The outer horizontal alignment telescopic mechanism and the horizontal alignment lifting mechanism are consistent in structure and mutually arranged at 90 degrees, the outer horizontal alignment telescopic mechanism and the horizontal alignment lifting mechanism all comprise sleeves, one end of the sleeve is connected to the screw rod extending to the outside in a rotating mode, the screw rod extends to the outside one end of the handle, and the surface of the screw rod is connected with two sets of horizontal alignment clamping mechanisms through threads located inside the sleeve.

Horizontal alignment fixture include with screw rod threaded connection's screw thread piece, bolt fixedly connected with right-angle plate is passed through on the right side of screw thread piece, the top of right-angle plate bonds there is the slipmat, and the top of slipmat is provided with the clamp plate, through the tight bolt fixed connection of horizontal alignment system between the inside left side of clamp plate and the right-angle plate, the clamp plate is close to the right side fixedly connected with of slipmat one side and runs through the locating pin of slipmat and right-angle plate, and is adjacent two sets of the centre gripping has horizontal alignment between horizontal alignment fixture's the slipmat and the clamp plate.

Preferably, the top of the convex horizontal alignment telescopic mechanism and the top of the horizontal alignment lifting mechanism are respectively and fixedly connected with a convex horizontal scale and a vertical scale, and the minimum scale value of the scale marks on the surfaces of the convex horizontal scale and the vertical scale is half of the minimum scale value of the scale body scale.

Preferably, the height of the skin number rod is 2m, and the minimum scale value of the scale body graduated steel ruler is the thickness of one standard brick.

Preferably, the perpendicularity adjusting rod comprises a pull rod and a rotating hinged seat fixedly connected to the side face of the leather number rod and the top of the horizontal base, and the rotating hinged seat is connected with the end portion of the pull rod through a bolt.

Preferably, the left front side of the leather number pole and the right side of the rear side are both provided with a sliding groove, the collimation line lifting sleeve is in a right-angle shape when being overlooked, and two sides of the collimation line lifting sleeve extend to the inside of the sliding groove and are in sliding connection with the inner surface of the sliding groove.

Preferably, the levelness brake bolts penetrate through the front side, the rear side and the rear side of the left side and the rear side of the right side of the horizontal base in a threaded manner, the bottom ends of the levelness brake bolts are hemispherical surfaces, and four corners of the horizontal base are provided with round corners.

Preferably, a round hole is formed in the center of the horizontal base, a positioning stable structure is arranged in the round hole, the positioning stable structure comprises a positioning bolt in threaded connection with an installation base surface, a compression ball sleeve is sleeved on the surface of the positioning bolt, and a disc is sleeved on the surface of the positioning bolt and below the compression ball sleeve.

Preferably, the center of the top of the disc is provided with a hemispherical concave surface matched with the pressing ball sleeve, the diameter of the round hole is smaller than that of the disc, and the bottom of the disc is fixedly connected with a rubber ring.

Advantageous effects

The invention provides a leather counting rod device for controlling the flatness of a masonry. Compared with the prior art, the method has the following beneficial effects:

(1) this control brickwork roughness's several pole devices in skin, through setting up evagination level alignment telescopic mechanism and level alignment elevating system, level alignment fixture that utilizes on it can fix level alignment, be convenient for carry out the level calibration when a wall body is built by laying bricks or stones, evagination level alignment telescopic mechanism and level alignment elevating system install on alignment lifting sleeve simultaneously, can rise along with it, and then can be along with the gradual rising of the piling of every layer of fragment of brick, the sustainable calibration that carries on, the roughness of brickwork has been guaranteed, and set up the evagination level alignment telescopic mechanism, still can calibrate evaginations such as wall body moulding, application scope is wide, adjustment convenient to use is swift.

(2) This control brickwork roughness's skin number pole device, through setting up horizontal base cooperation skin number pole, can carry out altitude mixture control for the horizontal alignment line of evagination horizontal alignment telescopic machanism and the horizontal alignment line elevating system on and provide the benchmark, guarantee the roughness of brickwork, and between skin number pole and the horizontal base and be connected perpendicularity regulation pole between them all can dismantle, can stabilize fixed stay when using, but when not using split, and then can reduce the occupation space of equipment, be convenient for deposit and transport.

(3) This control brickwork roughness's pi counts pole device props up horizontal base through adjusting three levelness brake bolt, the levelness of horizontal base has been adjusted, and then can guarantee that pi counts the pole and be in vertical state, and after adjusting the levelness, usable location stable knot constructs and compresses tightly it on the installation base face, makes the device more stable when using, avoids when high altitude operation, receives influences such as vibrations or wind-force and removes, has guaranteed the precision of long-time use.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a right side view of the structure of the present invention;

FIG. 3 is a top view of the pick-up rod and alignment lift sleeve of the present invention;

FIG. 4 is a side view of the outward convex horizontal alignment telescoping mechanism of the present invention;

FIG. 5 is a perspective view of the horizontal alignment fixture of the present invention;

FIG. 6 is a perspective view of a horizontal base of the present invention;

FIG. 7 is a perspective view of a positioning stabilization construct of the present invention;

figure 8 is a bottom perspective view of the puck of the present invention.

In the figure: 1. a horizontal base; 11. a circular hole; 12. positioning the stable structure; 121. positioning the bolt; 122. pressing the ball sleeve; 123. a disc; 124. a hemispherical concave surface; 125. a rubber ring; 13. a levelness brake bolt; 2. a pole with a skin number; 21. a chute; 3. a verticality adjusting rod; 31. a pull rod; 32. rotating the hinge base; 4. a steel scale body graduated steel scale; 5. a directrix lifting sleeve; 6. the lifting sleeve tightly clamps the bolt; 7. a convex horizontal alignment telescopic mechanism; 701. a convex horizontal graduated steel ruler; 71. a sleeve; 72. a screw; 73. a horizontal alignment clamping mechanism; 731. a thread block; 732. a right-angle plate; 733. a non-slip mat; 734. pressing a plate; 735. tightening the bolt by a horizontal alignment line; 736. positioning pins; 8. a horizontal alignment lifting mechanism; 801. a vertical graduated steel ruler; 9. a horizontal alignment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a leather counting rod device for controlling the flatness of a masonry comprises a horizontal base 1 and a leather counting rod 2 in threaded connection with a right front corner at the top of the horizontal base 1, wherein the left side and the rear side of the leather counting rod 2 are connected with the left front corner and the right rear corner at the top of the horizontal base 1 through a verticality adjusting rod 3, a ruler body graduated steel ruler 4 is fixedly connected to the front side of the leather counting rod 2, the height of the leather counting rod 2 is 2m, the minimum scale value of the ruler body graduated steel ruler 4 is the thickness of a standard brick, a standard line lifting sleeve 5 is sleeved outside the leather counting rod 2 and the ruler body graduated steel ruler 4 in a sliding manner, a lifting sleeve fastening bolt 6 is connected to the front side of the standard line lifting sleeve 5 in a threaded manner, the lifting sleeve fastening bolt 6 is used for fastening when the standard line lifting sleeve 5 slides to a specified height to avoid sliding down, sliding chutes 21 are formed in the front side of the left side of the leather counting rod 2 and the right side of the rear side of the leather counting rod, the standard line lifting sleeve 5 is in a right-angle shape when the standard line lifting sleeve 5 is overlooked, and both sides extend to the inside of the sliding chute 21 and are connected with the inner surface of the sliding chute in a sliding manner, the bottom on the right side of the alignment lifting sleeve 5 is fixedly connected with a convex horizontal alignment telescopic mechanism 7 which extends forwards, and a horizontal alignment lifting mechanism 8 is fixedly connected between the right side of the alignment lifting sleeve 5 and the top of the convex horizontal alignment telescopic mechanism 7.

The perpendicularity adjusting rod 3 comprises a pull rod 32 and a rotary hinged seat 32 fixedly connected to the side face of the leather number rod 2 and the top of the horizontal base 1, the rotary hinged seat 32 is connected with the end portion of the pull rod 32 through a bolt, the leather number rod 2 is matched with the horizontal base 1, the outer convex horizontal alignment line telescopic mechanism 7 and the horizontal alignment line 9 on the horizontal alignment line lifting mechanism 8 can be subjected to height adjustment to provide a reference, the flatness of the masonry is guaranteed, the perpendicularity adjusting rod 3 between the leather number rod 2 and the horizontal base 1 and between the leather number rod 2 and the horizontal base is connected and can be detached, when the perpendicularity adjusting rod is used, the fixed support can be stabilized, and the occupied space of equipment can be reduced, and the storage and the transportation are facilitated.

Referring to fig. 2 and 4, the outer convex horizontal alignment telescoping mechanism 7 and the horizontal alignment lifting mechanism 8 are identical in structure and arranged at an angle of 90 degrees, the outer convex horizontal alignment telescoping mechanism 7 and the horizontal alignment lifting mechanism 8 both include a sleeve 71, a screw 72 with one end extending to the outside is rotatably connected inside the sleeve 71, a handle is fixedly connected to one end of the screw 72 extending to the outside, and two sets of horizontal alignment clamping mechanisms 73 are connected to the surface of the screw 72 and the inner thread of the sleeve 71.

Referring to fig. 5, the horizontal guideline clamping mechanism 73 includes a screw block 731 in threaded connection with the screw 72, the right side of the screw block 731 is fixedly connected with a right-angle plate 732 through a bolt, a non-slip pad 733 is adhered to the top of the right-angle plate 732, a press plate 734 is arranged on the top of the non-slip pad 733, the left side inside the press plate 734 is fixedly connected with the right-angle plate 732 through a horizontal guideline fastening bolt 735, a positioning pin 736 passing through the non-slip pad 733 and the right-angle plate 732 is fixedly connected to the right side of the press plate 734 near one side of the non-slip pad 733, the positioning pin 121 is matched with the positioning pin 736 to support the side of the horizontal guideline 9, so as to improve stability and avoid the deviation of the horizontal guideline 9, the positioning pin 736 can also keep the press plate 734, the non-slip pad 733 and the right-angle plate 732 aligned, the horizontal guideline 9 is clamped between the non-slip pad 733 and the press plate 734 of two adjacent groups of horizontal guideline clamping mechanisms 73, the horizontal guideline 9 is a flat plate, and by arranging an outer convex horizontal guideline telescoping mechanism 7 and a horizontal guideline lifting mechanism 8, utilize horizontal alignment fixture 73 on it to fix horizontal alignment 9, be convenient for carry out the level calibration when a wall body is built by laying bricks or stones, evagination horizontal alignment telescopic mechanism 7 and horizontal alignment elevating system 8 are installed on alignment lifting sleeve 5 simultaneously, can rise along with it, and then can be along with the piling of every layer of fragment of brick gradually up-regulates, sustainable calibration, the roughness of brickwork has been guaranteed, and set up evagination horizontal alignment telescopic mechanism 7, still can calibrate evaginations such as wall body moulding, wide application scope, adjustment convenient to use is swift.

Referring to fig. 1-2, the top of the convex horizontal alignment line telescopic mechanism 7 and the top of the horizontal alignment line lifting mechanism 8 are respectively and fixedly connected with a convex horizontal scale 701 and a vertical scale 801, and the minimum scale value of the scale marks on the surfaces of the convex horizontal scale 701 and the vertical scale 801 is half of the minimum scale value of the scale body scale steel 4, and the scale is set to conveniently control the distance of the horizontal alignment line 9 for each adjustment, so that the accuracy is improved, and the adjustment efficiency is also facilitated.

Referring to fig. 6-8, the front and rear sides of the left side of the horizontal base 1 and the rear side of the right side are all threaded with the levelness brake bolt 13, the bottom end of the levelness brake bolt 13 is a hemispherical surface, and the four corners of the horizontal base 1 are all chamfered, the chamfered angle can make the angle supported by the horizontal base 1 more stable and smooth when deflecting, the center of the horizontal base 1 is provided with a round hole 11, and the round hole 11 is provided with a positioning and stabilizing structure 12, the positioning and stabilizing structure 12 includes a positioning bolt 121 in threaded connection with the installation base surface, the surface of the positioning bolt 121 is fixedly sleeved with a compression ball sleeve 122, the surface of the positioning bolt 121 and under the compression ball sleeve 122 is sleeved with a disc 123, the center of the top of the disc 123 is provided with a hemispherical concave surface 124 matched with the compression ball sleeve 122, the compression ball sleeve 122 is matched with the hemispherical concave surface 124, so that the compression effect can be ensured at any included angle between the horizontal base 1 and the installation base, the diameter of round hole 11 is less than the diameter of disc 123, and the bottom fixedly connected with of disc 123 glues ring 125, glue ring 125 and can improve frictional force after being compressed tightly, avoid disc 123 and horizontal base 1 preceding mutual slip, through set up levelness braking bolt 13 on horizontal base 1, prop up horizontal base 1 through adjusting three levelness braking bolt 13, the levelness of horizontal base 1 has been adjusted, and then can guarantee that picot pole 2 is in vertical state, and after adjusting the levelness, usable location stable structure 12 compresses tightly it on the installation base face, make the device more stable when using, avoid when high altitude construction, receive influences such as vibrations or wind-force and remove, the precision of long-time use has been guaranteed.

And those not described in detail in this specification are well within the skill of those in the art.

When the device is used, the stud at the bottom of the pole 2 is screwed on the top of the horizontal base 1 to complete installation, then the bottom end of the pull rod 31 connected with the side surface of the pole 2 is pulled to the position of the rotary hinge seat 32 on the horizontal base 1 and connected by the bolt, and then the assembly can be completed; firstly, a horizontal base 1 is placed on an installation base surface (a scaffold built outside a building), the position is adjusted close to a corner of a wall, the side surface of the horizontal base 1 is attached to the wall surface, then a level meter is placed on the horizontal base 1, then a levelness brake bolt 13 is rotated according to the level meter, the horizontal base 1 is adjusted to be in a horizontal state, and at the moment, a pole 2 with the number of piles is kept in a vertical state; then, the positioning stabilizing structure 12 is placed in the circular hole 11 of the horizontal base 1, and the bottom end of the levelness braking bolt 13 is screwed into the plate of the mounting base surface until the pressing ball sleeve 122 presses the disc 123, so that the rubber ring 125 at the bottom of the disc 123 presses the horizontal base 1 to complete positioning.

When the horizontal alignment line 9 is installed on the horizontal alignment line lifting mechanism 8, the horizontal alignment line tightening bolts 735 of the horizontal alignment line clamping mechanism 73 on the horizontal alignment line lifting mechanism 8 are loosened, the horizontal alignment line 9 is inserted between the anti-skid pad 733 and the pressing plate 734 of the two horizontal alignment line tightening bolts 735 on the horizontal alignment line lifting mechanism 8, and then the horizontal alignment line tightening bolts 735 are tightened to enable the anti-skid pad 733 and the pressing plate 734 to clamp the horizontal alignment line 9; when a layer of bricks is built, a screw 72 of the horizontal alignment lifting mechanism 8 is rotated to enable the horizontal alignment clamping mechanism 73 to drive the horizontal alignment 9 to rise together for a certain height, and then the next layer of bricks is stacked; when the horizontal alignment clamping mechanism 73 on the horizontal alignment lifting mechanism 8 rises to the limit, the lifting sleeve tightening bolt 6 is unscrewed, the upper alignment lifting sleeve 5 drives the outer convex horizontal alignment telescoping mechanism 7, the horizontal alignment lifting mechanism 8 and the horizontal alignment 9 to rise together by one layer, and then the lifting sleeve tightening bolt 6 is tightened for fixing.

Similarly, when the outer protrusion is built, a horizontal alignment line 9 is installed on the horizontal alignment line clamping mechanism 73 of the outer protrusion horizontal alignment line telescopic mechanism 7 for calibration, and when the outer protrusion extends outwards, the inner screw 72 is rotated to push the horizontal alignment line 9 outwards for a certain distance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a control brickwork roughness's skin number pole device, includes horizontal base (1) and top right front angle threaded connection's skin number pole (2), its characterized in that: the left side and the rear side of the leather number rod (2) are connected with a left front corner and a right rear corner of the top of the horizontal base (1) through a perpendicularity adjusting rod (3), a ruler body graduated steel ruler (4) is fixedly connected to the front side of the leather number rod (2), a front line lifting sleeve (5) is slidably sleeved outside the leather number rod (2) and the ruler body graduated steel ruler (4), a lifting sleeve tightening bolt (6) is connected to the top of the front side of the front line lifting sleeve (5) in a threaded mode, an outwards-protruding horizontal alignment telescopic mechanism (7) extending forwards is fixedly connected to the bottom of the right side of the alignment lifting sleeve (5), and a horizontal alignment lifting mechanism (8) is fixedly connected between the right side of the alignment lifting sleeve (5) and the top of the outwards-protruding horizontal alignment telescopic mechanism (7);

the outer convex horizontal alignment line telescopic mechanism (7) and the horizontal alignment line lifting mechanism (8) are consistent in structure and arranged at an angle of 90 degrees, the outer convex horizontal alignment line telescopic mechanism (7) and the horizontal alignment line lifting mechanism (8) respectively comprise a sleeve (71), a screw rod (72) with one end extending to the outside is rotatably connected inside the sleeve (71), a handle is fixedly connected to one end of the screw rod (72) extending to the outside, and two groups of horizontal alignment line clamping mechanisms (73) are in threaded connection with the surface of the screw rod (72) and the inner part of the sleeve (71);

horizontal guideline fixture (73) include with screw rod (72) threaded connection's screw block (731), bolt fixedly connected with right-angle plate (732) is passed through to the right side of screw block (731), non-slip mat (733) have been bonded at the top of right-angle plate (732), and the top of non-slip mat (733) is provided with clamp plate (734), through horizontal guideline system bolt (735) fixed connection between the inside left side of clamp plate (734) and right-angle plate (732), clamp plate (734) are close to right side fixedly connected with of non-slip mat (733) one side and are run through locating pin (736) of non-slip mat (733) and right-angle plate (732), adjacent two sets of centre gripping has horizontal guideline (9) between non-slip mat (733) and clamp plate (734) of horizontal guideline fixture (73).

2. The crown bar device for controlling the flatness of the masonry according to claim 1, wherein: the top of the convex horizontal alignment telescopic mechanism (7) and the top of the horizontal alignment lifting mechanism (8) are respectively and fixedly connected with a convex horizontal scale steel ruler (701) and a vertical scale steel ruler (801), and the minimum scale value of the surface scale lines of the convex horizontal scale steel ruler (701) and the vertical scale steel ruler (801) is half of the minimum scale value of the scale body scale steel ruler (4).

3. The crown bar device for controlling the flatness of the masonry according to claim 1, wherein: the height of the scale rod (2) is 2m, and the minimum scale value of the scale body graduated steel ruler (4) is the thickness of one standard brick.

4. The crown bar device for controlling the flatness of the masonry according to claim 1, wherein: the perpendicularity adjusting rod (3) comprises a pull rod (32) and a rotating hinged seat (32) fixedly connected to the side face of the leather counting rod (2) and the top of the horizontal base (1), and the end portions of the rotating hinged seat (32) and the pull rod (32) are connected through a bolt.

5. The crown bar device for controlling the flatness of the masonry according to claim 1, wherein: spout (21) have all been seted up with the right side of rear side to the left front side of skin number pole (2), guideline lift sleeve (5) overlook and are right angle shape, and both sides extend to inside rather than internal surface sliding connection of spout (21).

6. The crown bar device for controlling the flatness of the masonry according to claim 1, wherein: the horizontal base is characterized in that levelness brake bolts (13) penetrate through the front side, the rear side and the rear side of the left side and the rear side of the horizontal base (1) in a threaded mode, the bottom ends of the levelness brake bolts (13) are hemispherical surfaces, and fillets are formed in four corners of the horizontal base (1) in a chamfered mode.

7. The crown bar device for controlling the flatness of the masonry according to claim 1, wherein: round hole (11) have been seted up at the center of horizontal base (1), and be provided with location stable structure (12) in round hole (11), location stable structure (12) include with installation base face threaded connection's positioning bolt (121), the fixed surface cover of positioning bolt (121) is equipped with compresses tightly ball cover (122), the surface of positioning bolt (121) just is located to compress tightly ball cover (122) below cover and is equipped with disc (123).

8. The crown bar device for controlling the flatness of the masonry according to claim 7, wherein: the center of the top of the disc (123) is provided with a hemispherical concave surface (124) matched with the pressing ball sleeve (122), the diameter of the round hole (11) is smaller than that of the disc (123), and the bottom of the disc (123) is fixedly connected with a rubber ring (125).