CN115306112B - Elastic pre-buried bracket for wood floor and construction method - Google Patents

Abstract

The invention discloses an elastic pre-buried bracket of a wood floor and a construction method, comprising the following steps: the device comprises a pre-buried bottom plate, a square tube, a longitudinal rod, an adjusting column, a support, an elastic piece and other components, wherein the square tube is fixedly arranged on the pre-buried bottom plate, the adjusting column is arranged on the square tube, the support is arranged on the adjusting column, the elastic piece is arranged on the support, and the longitudinal rod connects the square tube, the adjusting column and the support; by matching with the corresponding construction method, good elastic feedback is provided, noise generated when the component moves is reduced, and pressure from the elastic piece is born by arranging a spring and a pressing rod on the support, so that feedback with gradient sense is realized, hard contact is avoided, and the elastic piece is protected.

Description

Elastic pre-buried bracket for wood floor and construction method

Technical Field

The invention relates to the technical field of decoration engineering equipment, in particular to an elastic pre-buried bracket for a wood floor and a construction method.

Background

The existing indoor wood floor is generally mounted on the ground by directly paving the wood floor on the leveled ground through glue or is mounted on the ground in an overhead manner through a bracket, wherein the bracket can be divided into a pre-buried bracket and a hole punching type bracket according to decoration design, and the pre-buried bracket has the advantages of high flatness, high stability and long service life, but needs to be planned in advance, has extremely high cost after pouring and can be changed again, and the supporting and connecting positions can be adjusted through external components; the perforated bracket is connected with the ground through bolts (part of the bracket can be perforated and installed on the wall), the floor strength and the construction environment are required during construction, and the floor can be damaged due to improper construction, such as: when the construction is perforated, a large amount of smoke dust is generated, noise and vibration are generated up and down the building, the life of other people is influenced, and even the construction is hindered. Thus, existing installations are based on tiling, but tiling installations do not provide good elastic feedback and acoustic feedback.

Aiming at the support and the construction mode, some manufacturers research a construction scheme of paving the mounting support and then mounting the wood floor on the paving support, and although the structure solves the problem that good elastic feedback and sound feedback cannot be obtained, the stability is poor, slippage can be generated between the paving support, the wood board and the ground for a long time, so that the wood board is arched or sunk.

Although the embedded bracket can achieve high flatness, once construction is finished, if the longitudinal alignment degree and the transverse alignment degree are low, subsequent correction and repair are very troublesome, and the conventional bracket is more general in providing an elastic feedback effect for paved wood boards.

Therefore, there is a need for an elastic pre-buried bracket for a wood floor and a construction method thereof, which can solve one or more of the above problems.

Disclosure of Invention

The invention provides an elastic pre-buried bracket for a wood floor and a construction method thereof, which aim to solve one or more problems in the prior art. The invention adopts the technical proposal for solving the problems that: a resilient pre-buried bracket for a wood floor, comprising: the embedded bottom plate is provided with a connecting frame on the top surface;

the square connector is provided with a first step, the first step is arranged on the top surface of the vertical surface of the square connector, at least two vertical surfaces of the square connector are provided with the first step, and the square connector is fixedly connected with the connecting frame;

the first pressing piece is tightly mounted on the first step;

the longitudinal rods are provided with four longitudinal rods, the lower ends of the longitudinal rods are fixedly connected with the first pressing sheets, and the longitudinal rods penetrate through the first pressing sheets to extend upwards;

the side face of the adjusting column is provided with a first half groove connected with the side face of the longitudinal rod, the top face of the adjusting column is provided with a connecting groove, the two adjusting columns are symmetrically arranged on the top face of the first pressing sheet, each adjusting column is connected with the two longitudinal rods respectively, and the two adjusting columns are fixedly connected through a locking rod;

the support is arranged on the upper side of the adjusting column, the support is provided with a connecting hole connected with the longitudinal rod, the side face of the support is provided with a fixing hole connected with the connecting hole, the top face of the support is provided with a mounting groove, a spring and a pressing rod are mounted in the mounting groove, the lower end of the pressing rod is propped against the top end of the spring, the top face of the support is fixedly provided with an upper cover, the upper cover limits the pressing rod to move up and down, and the pressing rod penetrates through the upper cover to extend towards the upper side;

the fixing rod is in threaded connection with the fixing hole, one end of the fixing rod passes through the fixing hole to be abutted with the longitudinal rod, and the fixing rod is used for locking the longitudinal rod;

the elastic component, the elastic component is provided with upper plate and hypoplastron, the upper plate with the hypoplastron is connected through the elastic connection arm, the hypoplastron is provided with presses the excellent hole, press the stick to pass press excellent hole enter into the upper plate with between the hypoplastron, the elastic connection arm is compressed the upper plate can support press the upper end of excellent and will press the stick to push down, the elastic component passes through the hypoplastron with support fixed connection.

Further, the square tube is provided with a second step and a third step, the second step is arranged on the bottom surface of the first step, the third step is arranged on the bottom surface of the second step, the widths of the first step, the second step and the third step decrease in sequence, and at least two vertical faces of the square tube are provided with the second step and the third step; the second pressing piece is tightly mounted on the second step in a matching manner; the third pressing piece is tightly mounted on the third step in a matching manner; the longitudinal rod extends upwards through the first pressing piece, the second pressing piece and the third pressing piece.

Further, the corners of the first step, the second step and the third step are respectively provided with a clamping slope inclined towards the inner side, and the corners of the lower sides of the first step, the second step and the third step can be provided with chamfers corresponding to the clamping slopes.

Further, the first, second and third pressing plates are respectively provided with corresponding first, second and third display plates, the first, second and third display plates respectively correspond to the first, second and third steps, and the chamfer angles are arranged on the first, second and third display plates.

Further, be provided with down the keyway on the facade of square tube, down the keyway is located the downside of third step, be provided with the keyway on the lateral surface of third preforming, go up the keyway with correspond from top to bottom down the keyway go up the keyway with install the chucking key in the keyway down.

Further, the method further comprises the following steps: lamination, the lamination sets up the support with adjust between the post, the lamination is provided with a plurality of, the top surface of lamination is provided with the upper groove, the bottom surface of lamination is provided with the arch, is located the upside the arch card of lamination is located the downside the upper groove of lamination, the lamination is installed adjust the top surface of post, the arch card is in the spread groove.

Further, a limiting protrusion extending towards the upper side is arranged in the mounting groove, the height of the limiting protrusion is lower than the depth of the mounting groove, and the pressing rod is abutted to the limiting protrusion when pressing the spring downwards.

Further, the upper end of the pressing rod is fixedly provided with a rubber cap.

Further, the method further comprises the following steps: the connecting plate is used for connecting the elastic piece with the wood board.

The construction method of the elastic pre-buried bracket of the wood floor comprises the following steps: s010, pouring a leveling layer on the ground, marking the position of an embedded bottom plate on the leveling layer according to a design drawing, fixing the embedded bottom plate on the position of the embedded bottom plate marked on the leveling layer by using glue or bolts, fixedly connecting a square through with a connecting frame of the embedded bottom plate, and pouring and submerging the embedded bottom plate by using concrete after the completion;

s020, sequentially installing and connecting all the components, measuring the height of the embedded bracket after the assembly is completed, comparing the height with the overhead height of the wood board in the design drawing, and then leveling, if the measured height is equal to the empty height of the wood board frame, finishing leveling;

s021, if the measured height is higher than the overhead height of the wood board, taking out the adjusting column, replacing the adjusting column with a lower height, and then measuring again;

s022, if the measured height is lower than the overhead height of the wood board, taking out n laminates by taking the height difference between the measured height and the overhead height of the wood board as a standard, marking the height after the n laminates are stacked as delta h1, marking the height difference as delta h, marking the thickness of a single laminate as h, and sequentially installing the n laminates on an adjusting column after the n laminates are satisfied, wherein the delta h-delta h1 is required to be satisfied;

s030, after leveling is completed, fixedly connecting the two adjusting columns by using a locking rod;

s040, adjusting the position of the longitudinal rod to enable the upper end of the longitudinal rod to be higher than or flush with the upper end of the fixing hole, and then locking the longitudinal rod by using a fixing rod;

s050, fixedly mounting the connecting plate on the bottom surface of the wood plate according to the design drawing, then placing the wood plate with the connecting plate on the top surface of the elastic piece for alignment, and fixedly connecting the wood plate, the connecting plate and the elastic piece after the alignment is completed.

The beneficial value obtained by the invention is as follows: according to the invention, the embedded bottom plate, the square through, the vertical rod, the adjusting column, the support and other components are connected together through ingenious structures, the adjustment of the empty height of the wood plate frame is realized by changing the adjusting columns with different heights and adding the lamination, the durability is higher than that of the screw type adjusting height, the weight can be borne, and the adjustment is very convenient; the integral volume and the quality of the embedded bracket are reduced by the combination mode of the embedded bottom plate, the square tube, the adjusting column, the support and the elastic piece, the problems of connection fixation, limiting and positioning of the square tube and other components are solved by the connection of the longitudinal rod, meanwhile, the longitudinal rod mainly bears the fixed tensile force from the upper side and the lower side and the upward tensile force generated by the stress of the wood board during use, and the longitudinal rod basically does not bear the larger abrupt change pressure from the wood board, so that the connection strength of the longitudinal rod is ensured and the threads of the longitudinal rod are not damaged easily; the elastic piece and the support are used for providing good elastic feedback for the wood board, the pressing rod on the support assists the elastic piece to provide elasticity, the compression layer is divided, irreversible plastic deformation caused by excessive compression of the elastic piece is avoided, meanwhile, the noise problem and the hard contact problem generated when the elastic piece is abutted with the pressing rod are solved through the rubber cap, the elastic feedback providing excessive smoothness or obvious layering sense is realized, and the sound generated during the elastic feedback is low, heavy and not harshness; by matching with the corresponding construction method, the height of the overhead and the installation alignment/flatness can be adjusted more conveniently, and the construction quality and efficiency are improved. The practical value of the invention is greatly improved.

Drawings

FIG. 1 is a schematic view of the installation of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a cross-sectional view in the direction of the top view A-A of the present invention;

FIG. 5 is a cross-sectional view in the direction B-B of the top view of the present invention;

FIG. 6 is a partial exploded view I of the present invention;

FIG. 7 is a partial exploded view II of the present invention;

FIG. 8 is a partial exploded view III of the present invention;

FIG. 9 is a partial exploded view IV of the present invention;

FIG. 10 is a side view of the present invention;

FIG. 11 is an enlarged partial view at side view I of the present invention;

FIG. 12 is a schematic view of an adjustment post and lamination of the present invention;

fig. 13 is a schematic block diagram of the construction method of the present invention.

[ reference numerals ]

10.pre-buried bracket 20.plank

101 & lt/pre-buried bottom plate 102 & lt/connection frame

201:202:203:204:third step

205 clamp ramp 206 lower keyway 207 clamp key 210 first tab

211 & lt/EN & gt first panel 220 & lt/EN & gt second sheet 221 & lt/works & gt second panel 230 & lt/works & gt third sheet

231 third display plate 232 upper key slot 233 prying groove

301 & ltS & gt adjustment column 302 & ltS & gt first half slot 303 & ltS & gt locking aperture 304 & ltS & gt connection slot 310 & ltS & gt lamination

311 upper groove 312 protrusion 313 second half groove 320 locking lever 330 longitudinal lever

401 support 402 connecting hole 403 mounting groove 404 fixing hole 405 limit projection

410, fixing rod 420, spring 430, upper cover 440, pressing rod 441 and rubber cap

501 elastic member 502 upper plate 503 lower plate 504 rod pressing hole 505 elastic connecting arm

601.A.connection plate.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention briefly described above will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein without departing from the spirit or scope of the invention as defined in the following claims.

As shown in fig. 1-12, the invention discloses an elastic pre-buried bracket for a wood floor, which comprises: the embedded bottom plate 101, wherein a connecting frame 102 is arranged on the top surface of the embedded bottom plate 101;

the square tube 201, the square tube 20 is provided with a first step 202, the first step 202 is arranged on the top surface of the vertical surface of the square tube 201, at least two vertical surfaces of the square tube 201 are provided with the first step 202, and the square tube 201 is fixedly connected with the connecting frame 102;

a first press piece 210, wherein the first press piece 210 is tightly mounted on the first step 202;

the number of the longitudinal rods 330 is four, the lower ends of the longitudinal rods 330 are fixedly connected with the first pressing sheets 210, and the longitudinal rods 330 penetrate through the first pressing sheets 210 to extend upwards;

the adjusting columns 301, the side surfaces of the adjusting columns 301 are provided with first half grooves 302 connected with the side surfaces of the longitudinal rods 330, the top surfaces of the adjusting columns 301 are provided with connecting grooves 304, the two adjusting columns 301 are symmetrically arranged on the top surfaces of the first pressing sheets 210, each adjusting column 301 is respectively connected with the two longitudinal rods 330, and the two adjusting columns 301 are fixedly connected through a locking rod 320;

the support 401, the support 401 is disposed on the upper side of the adjusting column 301, the support 401 is provided with a connection hole 402 connected with the vertical rod 330, a side surface of the support 401 is provided with a fixing hole 404 connected with the connection hole 402, a top surface of the support 401 is provided with a mounting groove 403, a spring 420 and a pressing rod 440 are mounted in the mounting groove 403, a lower end of the pressing rod 440 abuts against the top end of the spring 420, an upper cover 430 is fixedly mounted on the top surface of the support 401, the upper cover 430 limits up-and-down movement of the pressing rod 440, and the pressing rod 440 extends upwards through the upper cover 430;

the fixing rod 410 is in threaded connection with the fixing hole 404, one end of the fixing rod 410 passes through the fixing hole 404 to be abutted with the longitudinal rod 330, and the fixing rod 410 is used for locking the longitudinal rod 330;

the elastic piece 501, the elastic piece 501 is provided with upper plate 502 and lower plate 503, upper plate 502 with lower plate 503 passes through elastic connection arm 505 and connects, lower plate 503 is provided with presses excellent hole 504, press excellent 440 pass press excellent hole 504 get into between upper plate 502 with lower plate 503, elastic connection arm 505 is compressed the upper plate 502 can support press excellent 440's upper end and will press excellent 440 to push down, elastic piece 501 passes through lower plate 503 with support 401 fixed connection.

As shown in fig. 1, when in installation, the pre-buried brackets 10 are respectively arranged at two ends of the wood board 20, wherein at least one pre-buried bracket 10 is required to be arranged at the middle section of the wood board 20. It should be noted that, as shown in fig. 1, the method further includes: the connecting plate 601, the connecting plate 601 is used for connecting the elastic member 501 with the wood board 20, the connecting plate 601 is fixed on the bottom surface of the wood board 20 in advance, and then is connected with the elastic member 501, so that the installation is more convenient, and the front and back positions of the wood board 20 can be adjusted during the installation. In particular, the connection plate 601 may be rotatably connected to the elastic member 501, and in fig. 2, the connection plate is fixedly connected by bolts, so as to adapt to a corner or a slope of the ground, and meanwhile, adjacent boards are connected to each other, so that a gap grip phenomenon occurring during use is reduced through the interconnection between the adjacent boards and the rotational connection between the boards and the elastic member.

Specifically, as shown in fig. 4, 5 and 9, the square tube 201 is provided with a second step 203 and a third step 204, the second step 203 is disposed on the bottom surface of the first step 202, the third step 204 is disposed on the bottom surface of the second step 203, the widths of the first step, the second step and the third step decrease in sequence, and at least two vertical surfaces of the square tube 201 are provided with the second step and the third step; a second pressing piece 220, wherein the second pressing piece 220 is tightly mounted on the second step 203; a third pressing piece 230, wherein the third pressing piece 230 is tightly mounted on the third step 204; the longitudinal bar 330 extends upwardly through the first, second and third press plates. The purpose of the steps and the pressing pieces is to improve the connection strength of the longitudinal bar 330 and the square tube 201, and to facilitate the limiting and positioning.

Specifically, as shown in fig. 9-11, the corners of the first, second and third steps are provided with clamping slopes 205 inclined toward the inner side, and the lower corners of the first, second and third press pieces may be provided with chamfers corresponding to the clamping slopes 205. The purpose is that: when the step is cut, a loading gap can be reserved, and then the pressing piece can be loaded without high-precision alignment, and after loading, tight fit connection is performed through the clamping slope 205 and the chamfer. In particular, in order to improve the connection strength, the first, second and third press pieces are directly and fixedly connected (threaded) to the vertical rod 330, and it is necessary to use a key or a pin to fixedly connect to the square tube 201, as shown in fig. 11: the vertical face of the square through 201 is provided with a lower key groove 206, the lower key groove 206 is located at the lower side of the third step 204, the outer side face of the third pressing piece 230 is provided with an upper key groove 232, the upper key groove 232 corresponds to the lower key groove 206 up and down, and clamping keys 207 are installed in the upper key groove 232 and the lower key groove 206.

Further, as shown in fig. 9, the first, second and third pressing plates are respectively provided with corresponding first, second and third display boards 211, 221 and 231, the first, second and third display boards respectively correspond to the first, second and third steps, and the chamfer angles are arranged on the first, second and third display boards. Specifically, the pressing piece located on the lowermost step may be provided with a prying groove 233, as shown in fig. 9, and the third pressing piece 230 is provided with a prying groove 233 on a side surface thereof so as to facilitate the removal thereof.

It should be noted that, in order to reduce the volume and the gravity of the pre-buried bracket 10, the cost is easy to be controlled by using round tubes or square tubes, and in order to provide a more convenient installation structure and ensure the connection strength, the structures of the steps, the pressing sheets, the longitudinal bars and the like are designed.

Specifically, as shown in fig. 2, 8, and 12, the method further includes: lamination 310, lamination 310 sets up between support 401 and adjust post 301, lamination 310 is provided with a plurality of, lamination 310's top surface is provided with upper groove 311, lamination 310's bottom surface is provided with protruding 312, be located the upside lamination 310 protruding 312 card is located the downside lamination 310 the upper groove 311, lamination 310 installs the top surface of adjust post 301, protruding 312 card is in the spread groove 304. Through lamination 310 cooperation adjust post 301 connects the height of adjusting pre-buried support 10, and then adapts to the overhead height on the drawing, and above-mentioned structure also does benefit to simultaneously lamination 310's installation, connection can effectively avoid lamination 310 atress roll-off. As shown in fig. 12, the adjusting column 301 is provided with a locking hole 303 for connecting the locking lever 320; the lamination 310 may be provided with a second half-groove 313 that mates with the side rail 330.

Specifically, as shown in fig. 4, a limiting protrusion 405 extending toward the upper side is disposed in the mounting groove 403, the height of the limiting protrusion 405 is lower than the depth of the mounting groove 403, and the pressing rod 440 may abut against the limiting protrusion 405 when pressing the spring 420 downward. The purpose is that: limiting the movement of the pressing bar 440, preventing the spring 420 from being excessively compressed, and simultaneously, functioning as a limiting support; in particular, when the pressing rod 440 abuts against the limiting protrusion 405, the elastic member 501 reaches the limit of elastic deformation or approaches the limit. Further, a rubber cap 441 is fixedly mounted at the upper end of the pressing rod 440, and the contact between the upper end of the pressing rod 440 and the elastic member 501 is buffered by the rubber cap 441, so as to avoid the generation of harsh noise and hard contact.

It should be noted that, to provide a smooth elastic feedback effect, the thickness of the elastic connection arm 505 of the elastic member 501 cannot be too thick, which results in stiff elastic feedback, and secondly, the compression stroke is generally long, but the elastic member 501 is made with a high compression stroke and a low thickness, which results in a reduced service life and is prone to local plastic deformation, and the elastic member 501 with a short compression stroke and a high thickness cannot provide a good experience. In use, the elastic member 501 is compressed but not compressed to contact with the upper end of the pressing rod 440, so that a smooth feedback can be provided, and the elastic member 501 is compressed to contact with the upper end of the pressing rod 440, so that the downward compression force is continuously increased, and the user can feel obvious pause feedback (gradient feeling) and can continue compression, but the required pressure becomes very large. The elastic member 501 is prevented from being compressed to the limit to generate irreversible plastic deformation under a large pressure, and elastic feedback with gradient sense is provided under the cooperation of the pressing rod 440, so that direct hard contact is prevented.

And the construction method of the embedded bracket, as shown in fig. 13, comprises the following steps: s010, pouring a leveling layer on the ground, marking the position of an embedded bottom plate on the leveling layer according to a design drawing, fixing the embedded bottom plate 101 on the position of the embedded bottom plate marked on the leveling layer by using glue or bolts, fixedly connecting the square through 201 with a connecting frame of the embedded bottom plate 101, and pouring and submerging the embedded bottom plate 101 by using concrete after the completion;

s020, sequentially installing and connecting all the components, measuring the height of the embedded bracket after the assembly is completed, comparing the height with the overhead height of the wood board in the design drawing, and then leveling, if the measured height is equal to the empty height of the wood board frame, finishing leveling;

s021, if the measured height is higher than the overhead height of the wood board, taking out the adjusting column 301 and replacing the adjusting column 301 with a lower height, and then measuring again;

s022, if the measured height is lower than the plank overhead height, taking out n laminated sheets 310 by taking the height difference between the measured height and the plank overhead height as a standard, recording the height of the n laminated sheets 310 after being stacked as delta h1, recording the height difference as delta h, recording the thickness of each single laminated sheet 310 as h, and sequentially installing the n laminated sheets 310 on the adjusting column 301 after the measured height is lower than the plank overhead height by less than or equal to h;

s030, after leveling is completed, fixedly connecting the two adjustment posts 301 using the lock lever 320;

s040, adjusting the position of the longitudinal bar 330 so that the upper end of the longitudinal bar 330 is higher than or flush with the upper end of the fixing hole 404, and then locking the longitudinal bar 330 by using the fixing bar 410;

s050, fixedly mounting the connecting plate 601 on the bottom surface of the wood board according to the design drawing, then placing the wood board with the connecting plate on the top surface of the elastic piece 501 for alignment, and fixedly connecting the wood board, the connecting plate and the elastic piece after the alignment is completed.

In summary, the embedded bottom plate, the square through, the vertical rod, the adjusting column, the support and other components are connected together through ingenious structures, the empty height of the wood plate frame is adjusted by replacing the adjusting columns with different heights and adding the lamination, the durability is higher than that of the screw type adjusting height, the weight can be borne, and the adjustment is very convenient; the integral volume and the quality of the embedded bracket are reduced by the combination mode of the embedded bottom plate, the square tube, the adjusting column, the support and the elastic piece, the problems of connection fixation, limiting and positioning of the square tube and other components are solved by the connection of the longitudinal rod, meanwhile, the longitudinal rod mainly bears the fixed tensile force from the upper side and the lower side and the upward tensile force generated by the stress of the wood board during use, and the longitudinal rod basically does not bear the larger abrupt change pressure from the wood board, so that the connection strength of the longitudinal rod is ensured and the threads of the longitudinal rod are not damaged easily; the elastic piece and the support are used for providing good elastic feedback for the wood board, the pressing rod on the support assists the elastic piece to provide elasticity, the compression layer is divided, irreversible plastic deformation caused by excessive compression of the elastic piece is avoided, meanwhile, the noise problem and the hard contact problem generated when the elastic piece is abutted with the pressing rod are solved through the rubber cap, the elastic feedback providing excessive smoothness or obvious layering sense is realized, and the sound generated during the elastic feedback is low, heavy and not harshness; by matching with the corresponding construction method, the height of the overhead and the installation alignment/flatness can be adjusted more conveniently, and the construction quality and efficiency are improved. The practical value of the invention is greatly improved.

The foregoing examples are merely representative of one or more embodiments of the present invention and are described in more detail and are not to be construed as limiting the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.

Claims (10)

1. The utility model provides a timber apron elasticity pre-buried support which characterized in that includes: the embedded bottom plate is provided with a connecting frame on the top surface;

the square connector is provided with a first step, the first step is arranged on the top surface of the vertical surface of the square connector, at least two vertical surfaces of the square connector are provided with the first step, and the square connector is fixedly connected with the connecting frame;

the first pressing piece is tightly mounted on the first step;

the longitudinal rods are provided with four longitudinal rods, the lower ends of the longitudinal rods are fixedly connected with the first pressing sheets, and the longitudinal rods penetrate through the first pressing sheets to extend upwards;

the side face of the adjusting column is provided with a first half groove connected with the side face of the longitudinal rod, the top face of the adjusting column is provided with a connecting groove, the two adjusting columns are symmetrically arranged on the top face of the first pressing sheet, each adjusting column is connected with the two longitudinal rods respectively, and the two adjusting columns are fixedly connected through a locking rod;

the support is arranged on the upper side of the adjusting column, the support is provided with a connecting hole connected with the longitudinal rod, the side face of the support is provided with a fixing hole connected with the connecting hole, the top face of the support is provided with a mounting groove, a spring and a pressing rod are mounted in the mounting groove, the lower end of the pressing rod is propped against the top end of the spring, the top face of the support is fixedly provided with an upper cover, the upper cover limits the pressing rod to move up and down, and the pressing rod penetrates through the upper cover to extend towards the upper side;

the fixing rod is in threaded connection with the fixing hole, one end of the fixing rod passes through the fixing hole to be abutted with the longitudinal rod, and the fixing rod is used for locking the longitudinal rod;

the elastic component, the elastic component is provided with upper plate and hypoplastron, the upper plate with the hypoplastron is connected through the elastic connection arm, the hypoplastron is provided with presses the excellent hole, press the stick to pass press excellent hole enter into the upper plate with between the hypoplastron, the elastic connection arm is compressed the upper plate can support press the upper end of excellent and will press the stick to push down, the elastic component passes through the hypoplastron with support fixed connection.

2. The elastic pre-buried support for the wood floor according to claim 1, wherein the square tube is provided with a second step and a third step, the second step is arranged on the bottom surface of the first step, the third step is arranged on the bottom surface of the second step, the widths of the first step, the second step and the third step are gradually decreased, and at least two vertical surfaces of the square tube are provided with the second step and the third step; the second pressing piece is tightly mounted on the second step in a matching manner; the third pressing piece is tightly mounted on the third step in a matching manner; the longitudinal rod extends upwards through the first pressing piece, the second pressing piece and the third pressing piece.

3. The elastic pre-buried support for wood floors according to claim 2, wherein corners of the first step, the second step and the third step are respectively provided with a clamping slope inclined towards the inner side, and corners of the lower sides of the first step, the second step and the third step can be provided with chamfers corresponding to the clamping slopes.

4. The elastic pre-buried support for the wood floor according to claim 3, wherein the first, second and third pressing plates are respectively provided with corresponding first, second and third display plates, the first, second and third display plates respectively correspond to the first, second and third steps, and the chamfer angles are arranged on the first, second and third display plates.

5. The elastic pre-buried support for wood floors of claim 4, wherein a lower key groove is formed in a vertical face of the square through, the lower key groove is located on the lower side of the third step, an upper key groove is formed in the outer side face of the third pressing piece, the upper key groove corresponds to the lower key groove vertically, and clamping keys are arranged in the upper key groove and the lower key groove.

6. The resilient pre-buried bracket for a wood flooring according to claim 1, further comprising: lamination, the lamination sets up the support with adjust between the post, the lamination is provided with a plurality of, the top surface of lamination is provided with the upper groove, the bottom surface of lamination is provided with the arch, is located the upside the arch card of lamination is located the downside the upper groove of lamination, the lamination is installed adjust the top surface of post, the arch card is in the spread groove.

7. The elastic pre-buried support for the wood floor according to claim 1, wherein a limiting protrusion extending towards the upper side is arranged in the mounting groove, the height of the limiting protrusion is lower than the depth of the mounting groove, and the pressing rod is abutted with the limiting protrusion when pressing the spring downwards.

8. The elastic pre-buried support for wood floors according to claim 1, wherein a rubber cap is fixedly arranged at the upper end of the pressing rod.

9. The resilient pre-buried bracket for a wood flooring according to claim 1, further comprising: the connecting plate is used for connecting the elastic piece with the wood board.

10. A construction method of an elastic pre-buried bracket for a wood floor according to any one of claims 1 to 9, characterized in that S010, a leveling layer is poured on the ground, then the pre-buried bottom plate is marked on the leveling layer according to a design drawing, the pre-buried bottom plate is fixed on the pre-buried bottom plate marked on the leveling layer by using glue or bolts, then the square tube is fixedly connected with a connecting frame of the pre-buried bottom plate, and after the completion, the pre-buried bottom plate can be poured and submerged by using concrete;

s020, sequentially installing and connecting all the components, measuring the height of the embedded bracket after the assembly is completed, comparing the height with the overhead height of the wood board in the design drawing, and then leveling, if the measured height is equal to the empty height of the wood board frame, finishing leveling;

s021, if the measured height is higher than the overhead height of the wood board, taking out the adjusting column, replacing the adjusting column with a lower height, and then measuring again;

s022, if the measured height is lower than the overhead height of the wood board, taking out n laminates by taking the height difference between the measured height and the overhead height of the wood board as a standard, marking the height after the n laminates are stacked as delta h1, marking the height difference as delta h, marking the thickness of a single laminate as h, and sequentially installing the n laminates on an adjusting column after the n laminates are satisfied, wherein the delta h-delta h1 is required to be satisfied;

s030, after leveling is completed, fixedly connecting the two adjusting columns by using a locking rod;

s040, adjusting the position of the longitudinal rod to enable the upper end of the longitudinal rod to be higher than or flush with the upper end of the fixing hole, and then locking the longitudinal rod by using a fixing rod;

s050, fixedly mounting the connecting plate on the bottom surface of the wood plate according to the design drawing, then placing the wood plate with the connecting plate on the top surface of the elastic piece for alignment, and fixedly connecting the wood plate, the connecting plate and the elastic piece after the alignment is completed.

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