阅读说明：本技术 一种基坑施工防沉降设备 (Settlement equipment is prevented in foundation ditch construction ) 是由 不公告发明人 于 2021-08-16 设计创作，主要内容包括：一种基坑施工防沉降设备,包括底座、支撑框、承载架、顶板、连接架和辅助支撑架；承载架固定在底座的上侧且沿着竖直方向伸缩；承载架的下部和底座之间形成一个矩形的安装空间,支撑框设置在所述安装空间内；顶板用螺栓固定在承载架的顶端；连接架用螺栓连接在顶板的边缘处；多个连接架环绕在顶板的周侧；辅助支撑架设置在连接架的背离顶板的一端且处于连接架的下侧；防沉降设备能够避免建筑物的作用力过于集中,提高承载能力。(A foundation pit construction anti-settling device comprises a base, a supporting frame, a bearing frame, a top plate, a connecting frame and an auxiliary supporting frame; the bearing frame is fixed on the upper side of the base and stretches along the vertical direction; a rectangular mounting space is formed between the lower part of the bearing frame and the base, and the support frame is arranged in the mounting space; the top plate is fixed at the top end of the bearing frame by bolts; the connecting frame is connected to the edge of the top plate through bolts; a plurality of connecting frames are arranged around the periphery of the top plate; the auxiliary support frame is arranged at one end of the connecting frame, which is far away from the top plate, and is positioned at the lower side of the connecting frame; the anti-settling equipment can avoid the excessive concentration of the acting force of the building and improve the bearing capacity.)

1. The anti-settling equipment for foundation pit construction is characterized by comprising a base (1), a supporting frame (2), a bearing frame (3), a top plate (4), a connecting frame (5) and an auxiliary supporting frame (6);

the bearing frame (3) is fixed on the upper side of the base (1) and stretches along the vertical direction;

a rectangular mounting space is formed between the lower part of the bearing frame (3) and the base (1), and the support frame (2) is arranged in the mounting space;

the top plate (4) is fixed at the top end of the bearing frame (3) by bolts;

the connecting frame (5) is connected to the edge of the top plate (4) by bolts; a plurality of connecting frames (5) are encircled on the periphery of the top plate (4);

the auxiliary support frame (6) is arranged at one end of the connecting frame (5) departing from the top plate (4) and is positioned at the lower side of the connecting frame (5).

2. The foundation pit construction anti-settling device according to claim 1, wherein the connecting frame (5) comprises a connecting seat (51), a connecting plate (52) and a connecting piece (53);

a connecting base (51) connected to the lower side of one end of the connecting plate (52) by bolts;

a first positioning groove is concavely arranged at the lower part close to the other end of the connecting plate (52), the connecting piece (53) is connected to the connecting plate (52) by screw threads, and the lower end of the connecting piece extends to the first positioning groove; the side wall of the first positioning groove is a cylindrical curved surface.

3. The foundation pit construction anti-settling device of claim 2, wherein the connector (53) comprises a positioning head (531), a first retainer ring (532), a first spring (533) and a first bolt (534);

the positioning head (531) is in a circular truncated cone shape and is fixed at the lower end of the first bolt (534) in an integrated forming way;

the first retainer ring (532) is sleeved at the lower part of the first bolt (534);

the first spring (533) is sleeved on the rod-shaped part of the first bolt (534), and two ends of the first spring are respectively pressed on the end cover of the first bolt (534) and the first retaining ring (532).

4. The foundation pit construction anti-settling device according to claim 2, wherein the connecting seat (51) comprises a first spring plate (511), a second bolt (512), a sealing plate (513), two springs (514), a first buffer seat (515), a housing (516) and a first sliding block (517);

the shell (516) is wedge-shaped, a triangular prism-shaped sliding space is arranged in the shell (516), and a circular adjusting space is concavely arranged at the end part of the shell (516);

the first sliding block (517) slides in the sliding space;

the first spring plate (511) is fixed on the top surface of the first sliding block (517) by bolts;

the sealing plate (513) is fixed at the port of the adjusting space by bolts;

the first buffer seat (515) slides in the adjusting space, and two ends of the first buffer seat respectively prop between the first sliding block (517) and the sealing plate (513);

a second bolt (512) is screwed in the sealing plate (513) and has an end connected to the first buffer seat (515);

the second spring (514) is sleeved on the first buffer seat (515) and is extruded on the sealing plate (513).

5. The foundation pit construction anti-settling device according to claim 1, wherein the auxiliary support frame (6) comprises a bearing plate (61), a shell (62), a mounting seat (63), a buffer member (64) and a first guide rod (65);

the shell (62) is fixed on the upper side of the bearing plate (61) by bolts;

the buffer member (64) is arranged in the inner cavity of the shell (62);

the mounting base (63) is fixed to the upper side of the case (62) by bolts.

6. The foundation pit construction anti-settling device according to claim 5, wherein the buffer member (64) comprises a second buffer seat (641), a first ball (642), a third buffer seat (643), a rubber block (644) and a bearing seat (645);

the bearing seat (645) is fixed at the upper end of the second buffer seat (641) by bolts; the lower part of the bearing seat (645) is rectangular and the upper part is isosceles triangle;

the third buffer seat (643) is covered above the second buffer seat (641) and the bearing seat (645); the lower part of the third buffer seat (643) is concavely provided with a first isosceles triangle-shaped adjusting groove;

the rubber block (644) is adhered between the third buffer seat (643) and the bearing seat (645);

the first ball (642) is spherical and is articulated between the third snubbing seat (643) and the second snubbing seat (641).

7. The foundation pit construction anti-settling device according to claim 1, wherein the supporting frame (2) is formed by connecting four supporting rods (21) through bolts;

the supporting rod (21) comprises a body (211), a rubber plate (212), a second spring plate (213), a second retainer ring (214), a third spring (215), a first screw (216) and a fixed block (217);

a first buffer groove and a second buffer groove are respectively concavely arranged on two sides of the body (211);

the first screw (216) penetrates through the body (211) and is connected with the body by threads;

the fixed block (217) is connected to the end part of the first screw rod (216) by threads and is pressed at the port of the first buffer groove;

the second retainer ring (214) is fixed on the first screw rod (216);

the third spring (215) is sleeved on the first screw rod (216) and is tightly pressed between the second retainer ring (214) and the fixed block (217);

the rubber plate (212) slides in the second buffer groove, and one end of the first screw (216) is tightly propped against the rubber plate (212);

the second spring plate (213) is in the shape of an arc and is bonded to the inside of the rubber plate (212).

8. The foundation pit construction anti-settling device according to claim 1, wherein the bearing frame (3) comprises a first brace (31), a second guide rod (32), a second sliding block (33), a bearing member (34), a second brace (35) and a third brace (36);

the third support column (36) is in a cuboid shape, and the inner cavity of the third support column (36) is a first cavity extending along the longitudinal direction; guide grooves are concavely arranged on the side walls of the two sides of the first cavity;

the second guide rod (32) is connected in the guide groove by screw threads;

the first support column (31) is slidably arranged at the lower part of the third support column (36);

the second support column (35) is fixed at the top end of the first support column (31) by a bolt;

the second sliding block (33) is fixed on two side walls of the first supporting column (31) through bolts and sleeved on the second guide rod (32);

the bearing piece (34) is sleeved on the second support column (35), and the bearing pieces (34) are stacked along the axial direction of the second support column (35).

9. The foundation pit construction anti-settling device of claim 8, wherein the bearing (34) comprises a first bearing (341), a second ball (342), a first rubber block (343), a cushioning layer (344), a second rubber block (345), a guide tube (346), a fourth spring (347), a sleeve (348) and a second bearing (349);

the second bearing member (349) is in the shape of a letter "dogbone"; the second bearing member (349) is fixed below the first bearing member (341) by bolts;

a rectangular first buffer space is enclosed between the first bearing member (341) and the second bearing member (349);

the first rubber block (343) and the second rubber block (345) are arranged in the first buffer space at intervals;

the buffer layer (344) is squeezed between the first rubber block (343) and the second rubber block (345);

the second balls (342) are spherical and are pressed between the first rubber block (343), the second rubber block (345) and the buffer layer (344);

the guide tube (346) is fixed at the bottom of the second bearing piece (349) by bolts; the fourth spring (347) is bound in the guide tube (346);

the sleeve (348) is arranged in the first bearing piece (341) in a penetrating way.

Technical Field

The invention relates to the technical field of anti-settling equipment, in particular to anti-settling equipment for foundation pit construction.

Background

In the construction of buildings, the construction of foundations is of particular importance. During construction, due to the heavy weight of the building material, in the absence of necessary supporting members, the building is liable to settle downwards under the action of gravity, resulting in the inclination of the building structure and even the collapse of the building. However, the existing anti-settling equipment for building construction only supports the bottom of a building, and when the acting force is large, the anti-settling equipment is lack of necessary auxiliary measures, so that the structure is easily damaged because the acting force is excessively concentrated on the anti-settling equipment.

Therefore, it is desirable to provide a settlement-preventing device for foundation pit construction, which can prevent the acting force of the building from being too concentrated and improve the bearing capacity.

Disclosure of Invention

The invention aims to provide a settlement preventing device for foundation pit construction, which is used for preventing the acting force of a building from being too concentrated and improving the bearing capacity.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a foundation pit construction anti-settling device comprises a base, a supporting frame, a bearing frame, a top plate, a connecting frame and an auxiliary supporting frame;

the bearing frame is fixed on the upper side of the base and stretches along the vertical direction;

a rectangular mounting space is formed between the lower part of the bearing frame and the base, and the support frame is arranged in the mounting space;

the top plate is fixed at the top end of the bearing frame by bolts;

the connecting frame is connected to the edge of the top plate through bolts; a plurality of connecting frames are arranged around the periphery of the top plate;

the auxiliary supporting frame is arranged at one end of the connecting frame, which is far away from the top plate, and is positioned at the lower side of the connecting frame.

Preferably, the connecting frame comprises a connecting seat, a connecting plate and a connecting piece;

the connecting seat is bolted to the lower side of one end of the connecting plate;

a first positioning groove is concavely arranged at the lower part close to the other end of the connecting plate, the connecting piece is connected to the connecting plate by screw threads, and the lower end of the connecting piece extends to the first positioning groove; the side wall of the first positioning groove is a cylindrical curved surface.

Preferably, the connecting piece comprises a positioning head, a first retainer ring, a first spring and a first bolt;

the positioning head is in a circular truncated cone shape and is integrally fixed at the lower end of the first bolt;

the first check ring is sleeved at the lower part of the first bolt;

the first spring is sleeved on the rod-shaped part of the first bolt, and two ends of the first spring are respectively pressed on the end cover and the first retaining ring of the first bolt.

Preferably, the connecting seat comprises a first spring plate, a second bolt, a sealing plate, a second spring, a first buffer seat, a shell and a first sliding block;

the shell is wedge-shaped, a triangular prism-shaped sliding space is arranged in the shell, and a circular adjusting space is concavely arranged at the end part of the shell;

the first sliding block slides in the sliding space;

the first spring plate is fixed on the top surface of the first sliding block by bolts;

the sealing plate is fixed at the port of the adjusting space by a bolt;

the first buffer seat slides in the adjusting space, and two ends of the first buffer seat respectively prop between the first sliding block and the sealing plate;

the second bolt is connected in the sealing plate by screw thread, and the end part of the second bolt is connected to the first buffer seat;

the second spring is sleeved on the first buffer seat and extruded on the sealing plate.

Preferably, the auxiliary support frame comprises a bearing plate, a shell, a mounting seat, a buffer piece and a first guide rod;

the shell is fixed on the upper side of the bearing plate by bolts;

the buffer piece is arranged in the inner cavity of the shell;

the mounting seat is fixed on the upper side of the shell by bolts.

Preferably, the buffer member comprises a second buffer seat, a first ball, a third buffer seat, a rubber block and a bearing seat;

the bearing seat is fixed at the upper end of the second buffer seat by a bolt; the lower part of the bearing seat is rectangular and the upper part of the bearing seat is isosceles triangle;

the third buffer seat covers the second buffer seat and the bearing seat; the lower part of the third buffer seat is concavely provided with a first adjusting groove in an isosceles triangle shape;

the rubber block is bonded between the third buffer seat and the bearing seat;

the first ball is spherical and is hinged between the third cushion seat and the second cushion seat.

Preferably, the supporting frame is composed of four supporting rods which are connected through bolts;

the supporting rod comprises a body, a rubber plate, a second spring plate, a second check ring, a third spring, a first screw and a fixed block;

a first buffer groove and a second buffer groove are respectively concavely arranged on two sides of the body;

the first screw penetrates through the body and is connected with the body by threads;

the fixed block is connected to the end part of the first screw rod through threads and is tightly pressed at a port of the first buffer groove;

the second retaining ring is fixed on the first screw rod;

the third spring is sleeved on the first screw and tightly pressed between the second check ring and the fixed block;

the rubber plate slides in the second buffer groove, and one end of the first screw is tightly propped against the rubber plate;

the second spring plate is arc-shaped and is bonded in the rubber plate.

Preferably, the bearing frame comprises a first supporting column, a second guide rod, a second sliding block, a bearing member, a second supporting column and a third supporting column;

the third support column is in a cuboid shape, and the inner cavity of the third support column is a first cavity extending along the longitudinal direction; guide grooves are concavely arranged on the side walls of the two sides of the first cavity;

the second guide rod is connected in the guide groove by threads;

the first support column is slidably arranged at the lower part of the third support column in a penetrating way;

the second support column is fixed at the top end of the first support column by a bolt;

the second sliding block is fixed on two side walls of the first supporting column through bolts and sleeved on the second guide rod;

the bearing piece is sleeved on the second support column, and the bearing pieces are stacked along the axial direction of the second support column.

Preferably, the bearing comprises a first bearing, a second ball, a first rubber block, a buffer layer, a second rubber block, a guide pipe, a fourth spring, a sleeve and a second bearing;

the second bearing piece is in a convex shape; the second bearing piece is fixed below the first bearing piece by a bolt;

a rectangular first buffer space is enclosed between the first bearing piece and the second bearing piece;

the first rubber block and the second rubber block are arranged in the first buffer space at intervals;

the buffer layer is extruded between the first rubber block and the second rubber block;

the second ball is spherical and is squeezed among the first rubber block, the second rubber block and the buffer layer;

the guide pipe is fixed at the bottom of the second bearing piece through a bolt; the fourth spring is bound in the guide pipe;

the sleeve penetrates through the first bearing piece.

The invention has the following advantages:

(1) the building is supported on the roof panel 4, and the downward pressing force of the building is transmitted to the roof panel 4. The top plate 4 transmits the downward force to the carriage 3 and the carriage 3 is supported. The number of frames 2 can be supported according to the load-bearing capacity and the need for height adjustment of the bottom of the building. When the top plate 4 is pressed downwards, the connecting frame 5 is pulled, and the connecting frame 5 pulls the supporting frame 6. Thereby, the roof 4 will receive the extrusion force transmit respectively to a plurality of link 5 and support frame 6 on, avoid the effort to concentrate, improve bearing capacity.

Drawings

Fig. 1 is a schematic view of the settlement preventing apparatus for foundation pit construction of the present invention.

Fig. 2 is a schematic view of the connection bracket of the present invention.

Fig. 3 is a schematic view of a connector of the present invention.

Fig. 4 is a schematic view of the connecting socket of the present invention.

Fig. 5 is a schematic view of the auxiliary support frame of the present invention.

Fig. 6 is a schematic view of a cushioning member of the present invention.

Fig. 7 is a schematic view of the support frame of the present invention.

Figure 8 is a schematic view of a support pole of the present invention.

Fig. 9 is a schematic view of a loading ledge of the present invention.

Fig. 10 is a schematic view of a carrier of the present invention.

1-a base; 2-a support frame; 21-a support bar; 211-a body; 212-rubber sheet; 213-a second spring plate; 214-a second collar; 215-a third spring; 216-a first screw; 217-fixed block; 3-a bearing frame; 31-a first brace; 32-a second guide bar; 33-a second slider; 34-a carrier; 341-a first carrier; 342-a second ball; 343-a first rubber block; 344-a buffer layer; 345-a second rubber block; 346-a guide tube; 347-a fourth spring; 348-a sleeve; 349-second carrier; 35-a second brace; 36-a third brace; 4-a top plate; 5-a connecting frame; 51-a connecting seat; 511-a first spring plate; 512-second bolt; 513-sealing plate; 514-a second spring; 515-a first cushion seat; 516-a housing; 517-first slider; 52-a connecting plate; 53-a connector; 531-positioning the head; 532-a first retainer ring; 533-a first spring; 534-first bolt; 6-auxiliary support frame; 61-a carrier plate; 62-shell; 63-a mounting seat; 64-a buffer; 641-a second buffer seat; 642-a first ball; 643-a third cushion seat; 644-rubber block; 645-load bearing seat; 65-first guide bar.

Detailed Description

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Examples

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the invention is further described with reference to the figures and the specific embodiments.

The foundation pit construction settlement prevention apparatus of the present invention will be described in detail with reference to fig. 1 to 10.

Referring to fig. 1, the settlement preventing device for foundation pit construction of the present application includes a base 1, a support frame 2, a bearing frame 3, a top plate 4, a connecting frame 5 and an auxiliary support frame 6. The carriage 3 is fixed to the upper side of the base 1 by bolts and extends and contracts in the vertical direction. A rectangular installation space is formed between the lower portion of the loading frame 3 and the base 1, and the support frame 2 is disposed in the installation space. The cross-section of the carriage 3 corresponds to the lateral surface of the base 1 and is aligned in the vertical direction. The top plate 4 is a rectangular thin plate, and the top plate 4 is fixed to the top end of the carriage 3 by bolts. The connection frames 5 are bolted to the edge of the top plate 4, and a plurality of connection frames 5 are wound around the periphery of the top plate 4. In this embodiment, the top plate 4 is rectangular, and a connecting frame 5 is fixed at each edge of the top plate 4. The auxiliary support frame 6 is connected with one end of the connecting frame 5, which is far away from the top plate 4, through screw threads, and the auxiliary support frame 6 is arranged on the lower side of the connecting frame 5.

In use, a building is supported on the roof panel 4 and the downward compressive force of the building is transmitted to the roof panel 4. The top plate 4 transmits the downward force to the carriage 3 and the carriage 3 is supported. The number of frames 2 can be supported according to the load-bearing capacity and the need for height adjustment of the bottom of the building. When the top plate 4 is pressed downwards, the connecting frame 5 is pulled, and the connecting frame 5 pulls the supporting frame 6. Thereby, the roof 4 will receive the extrusion force transmit respectively to a plurality of link 5 and support frame 6 on, avoid the effort to concentrate, improve bearing capacity.

Referring to fig. 2, 3 and 4, the link frame 5 includes a link base 51, a rectangular link plate 52 and a link member 53. The connecting base 51 is bolted to the lower side of one end of the connecting plate 52, and the end of the connecting base 51 having a larger longitudinal sectional dimension is bolted to the side wall of the carrier 3. A first positioning groove is concavely provided at the lower portion near the other end of the connecting plate 52, the connecting member 53 is screwed to the connecting plate 52, and the lower end of the connecting member 53 extends into the first positioning groove. The side wall of the first positioning groove is a cylindrical curved surface. The first positioning groove extends in the width direction of the connection plate 52.

The connector 53 includes a positioning head 531, a first retainer ring 532, a first spring 533, and a first bolt 534. The positioning head 531 is formed in a circular truncated cone shape and is fixed to the lower end of the first bolt 534 in an integrally formed manner. The first retainer ring 532 is fitted over a lower portion of the first bolt 534. The first spring 533 is sleeved on the rod-shaped portion of the first bolt 534, and two ends of the first spring 533 are respectively pressed on the end cover of the first bolt 534 and the first retaining ring 532.

In use, the first bolts 534 are screwed to the connecting plate 52, and a plurality of the first bolts 534 are arranged along the width direction of the connecting plate 52. The lower end of the first bolt 534 is screwed into the second adjusting groove of the mounting base 63, and the positioning head 531 is tightly pressed against the second adjusting groove, so that the connection between the connecting piece 53 and the auxiliary supporting frame 6 is realized.

When receiving longitudinal extrusion force, connecting plate 52 extrudes auxiliary support frame 6 downwards, produces mutual extrusion force between connecting plate 52 and the auxiliary support frame 6, and connecting plate 52 drives first retaining ring 532, and first retaining ring 532 extrudes first spring 533, and first spring 533 receives the extrusion to produce and warp in order to play the cushioning effect, avoids the great structural damage that leads to of impact between connecting plate 52 and the auxiliary support frame 6, improves the bearing capacity and the stability of connecting of auxiliary support frame 6 and link 5.

The connection block 51 includes a first spring plate 511, a second bolt 512, a sealing plate 513, a second spring 514, a first buffer block 515, a housing 516, and a first slider 517. The housing 516 is wedge-shaped, a triangular prism-shaped sliding space is provided in the housing 516, and a circular adjustment space is concavely provided at an end of the housing 516. The adjustment space is communicated with the sliding space. The first slider 517 is a triangular prism, and the first slider 517 slides in the sliding space. The first spring plate 511 is a rectangular thin plate, and the first spring plate 511 is fixed to the top surface of the first slider 517 by bolts. The sealing plate 513 is a thin plate, and the sealing plate 513 is fixed to a port of the adjustment space by a bolt. The first buffer seat 515 slides in the adjustment space, and both ends of the first buffer seat 515 are respectively pressed between the first slider 517 and the sealing plate 513. A second bolt 512 is screwed into the sealing plate 513, and an end of the second bolt 512 is coupled to the first buffer base 515. The second spring 514 is fitted over the first buffer seat 515 and presses against the sealing plate 513. One end of the first buffer seat 515 is cylindrical, and the other end is disc-shaped. The cylindrical end of the first buffer seat 515 slides in the adjustment space, and the disc-shaped end of the first buffer seat 515 abuts against the first slider 517.

In use, the connecting block 51 is pressed downward when the connecting plate 52 is pulled by the top plate 4. The first spring plate 511 presses the first sliding block 517 downwards, and the first sliding block 517 is pressed to slide along the inner cavity of the outer shell 516, so that structural damage caused by hard impact is avoided. The end of the first slider 517 presses against the first buffer base 515, and the disk-shaped portion of the first buffer base 515 presses against the second spring 514. The second spring 514 is extruded to generate deformation so as to relieve extrusion force, so that a buffering effect is achieved, and the overall bearing capacity of the connecting seat 51 is improved.

When the second bolt 512 is rotated, the second bolt 512 pushes the first buffer base 515, the first buffer base 515 pushes the first slider 517, and the first slider 517 pushes up the first spring plate 511, thereby adjusting the degree of compression between the first spring plate 511 and the connection plate 52.

The first spring plate 511 is made of a spring steel plate, and when the first spring plate 511 and the connecting plate 52 are tightly pressed, the first spring plate 511 has a small buffer deformation space when being pressed, and the bearing capacity is small. When the first spring plate 511 and the connecting plate 52 are pressed loosely, the first spring plate 511 has a larger space for buffering deformation when being pressed, can generate larger deformation, and has large bearing capacity.

The auxiliary support frame 6 includes a bearing plate 61, a shell 62, a mounting seat 63, a buffer member 64 and a first guide rod 65.

The case 62 is rectangular parallelepiped, and the case 62 is fixed to the upper side of the carrier plate 61 with bolts. The bumper 64 is compressed within the interior cavity of the housing 62. The mount 63 is fixed to the upper side of the case 62 by bolts. The mounting seat 63 is semicircular. The mounting base 63 is concavely provided with a second adjusting groove.

The buffer member 64 includes a second buffer seat 641, a first ball 642, a third buffer seat 643, a rubber block 644, and a bearing seat 645. The bearing seat 645 is fixed to the upper end of the second buffering seat 641 by bolts. The lower portion of the bearing seat 645 is rectangular and the upper portion is isosceles triangle. The third cushion seat 643 is covered above the second cushion seat 641 and the loading seat 645. The lower portion of the third cushion 643 is concavely provided with a first adjusting groove in the shape of an isosceles triangle. A gap is formed between the upper portion of the carrier 645 and the third cushion seat 643. The rubber block 644 is adhered between the third buffer seat 643 and the bearing seat 645, that is, the rubber block 644 is in the gap, and the gaps on the two sides of the bearing seat 645 are symmetrical. The first ball 642 is spherical and is hinged between the third cushion seat 643 and the second cushion seat 641. The first ball 642 is at the edge of the third and second bump stop 643 and 641. The longitudinal section of the second buffer seat 641 is inverted "convex" and the lower portion of the second buffer seat 641 protrudes to the outside of the case 62 and is fixed to the carrier plate 61 with bolts.

In use, the mounting 63 is placed in the second adjustment groove. When the connecting plate 52 is pressed, the force is transmitted to the case 62, the buffer member 64 and the carrier plate 61.

The housing 62 presses the third cushion 643, the third cushion 643 presses the rubber block 644 downward, and the rubber block 644 presses the bearing 645. The rubber block 644 deforms after being pressed to relieve the pressing force, thereby playing a role of buffering. Meanwhile, the rubber block 644 slides along the gap, so that structural damage caused by fixed connection is avoided, and the use safety is improved.

The third buffering seat 643 and the second buffering seat 641 roll relatively through the first ball 642, so that the fixed connection structure is prevented from being damaged when being impacted, the connection stability of the third buffering seat 643 and the second buffering seat 641 is improved, and the buffering capacity of the buffering member 64 is improved. The upper portion of bearing seat 645 is isosceles triangle, and its both sides structure is unanimous, and bearing capacity is unanimous, avoids because self structure leads to local atress unbalanced, improves the force stability.

The support frame 2 is composed of four support rods 21 which are connected through bolts. The support frame 2 is a rectangular frame. The support rod 21 includes a body 211, a rubber plate 212, a second spring plate 213, a second retainer 214, a third spring 215, a first screw 216, and a fixing block 217. A first buffer slot and a second buffer slot are respectively concavely arranged on two sides of the body 211. The first screw 216 penetrates the body 211 and is screwed to the body 211. The holding block 217 is rectangular, and the holding block 217 is screwed to the end of the first screw 216 and is pressed against the port of the first buffer tank. The first buffer tank is circular. The second retainer 214 is circular and the second retainer 214 is threaded onto the first screw 216. The second retainer 214 is located in the first buffer groove. The third spring 215 is sleeved on the first screw 216, and the third spring 215 is tightly pressed between the second retainer 214 and the fixed block 217. The rubber plate 212 is rectangular, and the rubber plate 212 slides in the second buffer groove. One end of the first screw 216 abuts against the rubber plate 212. The second spring plate 213 is arc-shaped, and the second spring plate 213 is bonded inside the rubber plate 212.

In use, when the first screw 216 is rotated, the first screw 216 pushes the rubber plate 212, the rubber plate 212 is pressed against the outer portion of the carrier 3, and the fixing block 217 is pressed against the sidewall of the body 211, so that the body 211 is firmly fixed to the carrier 3.

When the bearing frame 3 transversely shakes under the action of the building, the bearing frame 3 presses the rubber plate 212, and the rubber plate 212 is pressed to deform to relieve the pressing force. Meanwhile, the second spring plate 213 is deformed by the compression to relieve the compression force, so as to play a role in buffering, thereby improving the bearing capacity and stability of the bearing frame 3. The bearing frame 3 extrudes the rubber plate 212, the rubber plate 212 pushes the first screw 216, the first screw 216 drives the second retainer 214, the second retainer 214 extrudes the third spring 215, and the third spring 215 is extruded to deform to relieve the extrusion force, thereby playing a role in buffering and protecting.

The carriage 3 comprises a first brace 31, a second guide bar 32, a second slider 33, a carriage 34, a second brace 35 and a third brace 36. The third pole 36 is a rectangular parallelepiped, and the inner cavity of the third pole 36 is a first cavity extending along the longitudinal direction. Rectangular guide grooves are concavely formed in the side walls of both sides of the first cavity, and the guide grooves extend along the longitudinal direction of the third stay 36. The second guide bar 32 is a circular bar shape, and the second guide bar 32 is screwed in the guide groove. The first stay 31 is a rectangular parallelepiped, and the first stay 31 is slidably inserted through a lower portion of the third stay 36. The second stay 35 is cylindrical, and the second stay 35 is fixed to the tip of the first stay 31 by a bolt. The second sliding block 33 is rectangular, and the second sliding block 33 is fixed on two side walls of the first supporting column 31 by bolts and is sleeved on the second guiding rod 32. The bearing member 34 is sleeved on the second support pillar 35, and the plurality of bearing members 34 are stacked along the axial direction of the second support pillar 35.

When the telescopic handle is used, the first stay 31 slides along the inner cavity of the third stay 36 as required, and the second slider 33 slides along the second guide bar 32 to adjust the length of the first stay 31 extending out of the third stay 36. The base 1 is bolted to the lower end of the first brace 31. After the first brace 31 is adjusted, the distance between the lower ends of the base 1 and the third brace 36 is adjusted, and the support frame 2 is placed between the lower ends of the base 1 and the third brace 36, so that the top surface and the bottom surface of the support frame 2 are clamped, and the support frame 2 is fixed.

Through the length that first dagger 31 stretches out to the third dagger 36, adjust the distance between braced frame 2 and the base 1 to place suitable quantity of braced frame 2 as required, satisfy the user demand under the multiple condition, adjust the height of building bottom.

The carrier 34 includes a first carrier 341, a second ball 342, a first rubber 343, a cushion 344, a second rubber 345, a guide tube 346, a fourth spring 347, a sleeve 348 and a second carrier 349.

The second carrier 349 is "crowned". The second bearing member 349 is fixed below the first bearing member 341 with bolts. A rectangular first buffer space is enclosed between the first carrier 341 and the second carrier 349. The first rubber block 343 and the second rubber block 345 are arranged in the first buffer space with a space therebetween. The first rubber block 343 and the second rubber block 345 are both trapezoidal, and the inclined side walls of the first rubber block 343 and the inclined side walls of the second rubber block 345 are close to each other.

The cushioning layer 344 is compressed between the first rubber block 343 and the second rubber block 345. The second balls 342 are spherical and are compressed between the first rubber block 343, the second rubber block 345, and the buffer layer 344. The guide tube 346 is bolted to the bottom of the second carrier 349; the fourth spring 347 is bound within the guide tube 346. The sleeve 348 is disposed through the first supporting member 341.

In use, the second brace 35 is inserted into the sleeve 348. When the third stay 36 is longitudinally pressed against the first bearing member 341 downward, the first bearing member 341 presses against the first rubber block 343, the first rubber block 343 presses against the second ball 342 and the buffer layer 344, and the second ball 342 and the buffer layer 344 press against the second rubber block 345.

The second ball 342, the first rubber block 343, the buffer layer 344 and the second rubber block 345 form a buffer unit, and the second ball 342, the first rubber block 343, the buffer layer 344 and the second rubber block 345 slide relatively to each other, so that a buffer effect is achieved, and structural damage caused by hard extrusion is avoided.

The plurality of buffer units are arranged along the inner cavity of the first bearing part 341, and each buffer unit deforms when being extruded, so that the overall extrusion force is dispersed to the plurality of buffer units, the phenomenon that the single buffer unit deforms greatly due to too concentrated action force is avoided, and the bearing capacity is improved.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.