Temporary supporting and lifting device for repairing damaged wooden column of ancient building

Abstract

The utility model discloses a temporary support lifting device for ancient building wooden column damage repair, which comprises an upper top plate and a lower support, the top of the lower support is fixedly connected with a U-shaped seat, two sides of the top of the U-shaped seat are inclined planes, and the top of the U-shaped seat is fixedly connected with an external thread pipe. A threaded vertical guide lifting assembly fixedly connected with the bottom of the upper top plate is installed in the outer threaded pipe, and a band-type brake motor with an output shaft fixedly connected with the threaded vertical guide lifting assembly is fixedly installed at the top of the lower support. By arranging a series of structures, the upper top plate can be automatically controlled to lift to quickly and temporarily support and lift a beam column at the top of the historic building wooden column, so that a repairman can repair, clamp and fix the wooden column, the worker does not need to carry out labor-consuming operation back and forth during lifting adjustment, the support and lift efficiency is improved, and the labor intensity of the worker is reduced. And the four sides of the bottom can be conveniently and synchronously expanded for supporting and inclination prevention, the supporting area of the bottom is increased, the phenomenon that the supporting area of the bottom is small, concentrated and prone to inclination is reduced, and the supporting and inclination prevention stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of the repair of damaged ancient building wooden columns, in particular to a temporary supporting and lifting device for the repair of damaged ancient building wooden columns. Background Technique

[0002] In recent years, with the continuous enhancement of people's awareness of cultural relics protection, the repair of ancient buildings has received more and more attention and emphasis from the society. The wooden columns in ancient buildings are the main components that bear the upper load. However, due to the poor moisture-proof function of traditional buildings, the moisture in the ground can easily invade the interior of the wooden columns through lime soil, stone piers, and walls, causing the column feet to rot, the strength of the wooden columns to decline, and the wooden columns to be unable to support the crossbeam normally. Currently, in the industry, most methods are to use mortise and tenon joints plus double iron hoop encircling and nail fixation; or use the same material as the original wooden column and use wedge nail tenons as the structural connection method for reinforcement work, enhancing the overall stability of the wooden column while maintaining the original appearance of the ancient building. The repair of ancient building wooden columns includes damaged inspection, supporting and lifting, cutting off the rotten column feet, initial processing of column materials, chiseling mortises and tenons, trial fitting of mortise and tenon joints, making wooden stone plates, replacing column connections, and painting operations.

[0003] Among them, supporting and lifting is an extremely important process in the repair of damaged ancient building wooden columns. It is to use a supporting device to temporarily support or slightly lift the beam rod at the top of the wooden column to temporarily replace the wooden column for supporting work, so that the repair personnel can carry out the repair and clamping work on the wooden column. The existing supporting and lifting method is to use a jack to cooperate with a top rod for supporting work. The jack applies an upward force to the top rod at the bottom to temporarily support and lift the beam rod at the top of the wooden column. Then the repair personnel can carry out the repair and reinforcement work on the wooden column, and then remove the jack and the top rod after the repair is completed. However, there are the following deficiencies in use: 1. Since the bottom area of the jack is fixed, the anti-tilting stability effect of the bottom support during supporting is not ideal. Because the bottom support area is small and concentrated, there is a risk of tilting; 2. When the jack is lifted and adjusted, it requires laborious back-and-forth operation by personnel and cannot automatically and quickly carry out the supporting and lifting work, with low efficiency. In view of this, this application proposes a temporary supporting and lifting device for the repair of damaged ancient building wooden columns to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a temporary supporting and lifting device for the repair of damaged ancient building wooden columns to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present utility model provides the following technical solution: A temporary support and elevation device for repairing damaged ancient building wooden columns, comprising an upper top plate and a lower support. A U-shaped seat with inclined surfaces on both sides of the top is fixedly connected to the top of the lower support. An external threaded tube is fixedly connected to the top of the U-shaped seat. A threaded vertical guiding and lifting assembly fixedly connected to the bottom of the upper top plate is installed inside the external threaded tube. A brake motor with an output shaft fixedly connected to the threaded vertical guiding and lifting assembly is fixedly installed on the top of the lower support. The threaded vertical guiding and lifting assembly is used to drive the upper top plate to move up and down when the brake motor is started. During the repair work of damaged ancient building wooden columns, it is necessary to temporarily support or slightly elevate the beam rod above the wooden column. The upper top plate that moves upward is used to support or slightly elevate the beam rod above the wooden column to temporarily replace the wooden column for support work, so as to allow the repair personnel to carry out repair clamping work on the wooden column;

[0006] Rectangular grooves are provided on all four sides of the lower support. A spring-loaded horizontal guiding assembly is installed inside the rectangular grooves. The mutually repelling ends of the four spring-loaded horizontal guiding assemblies all extend outside the lower support and are fixedly connected to an expansion support. Two support balls are movably embedded at the bottom of the expansion support. A linkage drive assembly is threadedly sleeved on the external threaded tube. One side of the linkage drive assembly close to the four expansion supports is hinged. The spring-loaded horizontal guiding assembly is used to horizontally guide the corresponding expansion support and perform spring-loading work when it moves outward. The linkage drive assembly is used to drive the four expansion supports to expand outward or contract inward synchronously. By expanding the four expansion supports outward, the support area at the bottom can be increased, and the anti-tipping stability of the bottom support can be improved.

[0007] Preferably, the threaded vertical guiding and lifting assembly includes a lifting rod slidably sleeved inside the external threaded tube. The top end of the lifting rod is fixedly connected to the bottom of the upper top plate. A screw rod is rotatably embedded at the top of the U-shaped seat inside the external threaded tube. The lifting rod is threadedly sleeved on the screw rod. The bottom end of the screw rod is fixedly connected to the top end of the output shaft of the brake motor.

[0008] Preferably, the spring-loaded horizontal guiding assembly includes rectangular guide rods slidably sleeved inside the corresponding rectangular grooves. Springs are fixedly connected between the mutually approaching ends of the four rectangular guide rods and the inner walls of the corresponding rectangular grooves away from their openings. The mutually repelling ends of the four rectangular guide rods are respectively fixedly connected to one side of the corresponding expansion support close to the lower support.

[0009] Preferably, the linkage drive assembly includes an internal threaded sleeve threadedly sleeved on the external threaded tube. Handle rods are fixedly connected to all four sides of the internal threaded sleeve. A circular groove communicating with its interior is provided at the bottom of the internal threaded sleeve. A circular tube is rotatably sleeved inside the circular groove. The circular tube is movably sleeved on the external threaded tube. Inclined connecting rods are hinged to the bottom of all four sides of the circular tube. The two opposite connecting rods are symmetrically arranged. One side of the four expansion supports close to each other is respectively hinged to the bottom end of the corresponding connecting rod. A spiral thread threadedly connected to the internal threaded sleeve is provided at the bottom of the outer side of the external threaded tube.

[0010] Preferably, an anti-slip rubber sheet is adhesively fixed to the top of the upper top plate, and an anti-slip rubber pad is adhesively fixed to the bottom of the lower support. The bottom of the anti-slip rubber pad is flush with the bottom of the support ball.

[0011] Preferably, a storage battery electrically connected to the brake motor is fixedly installed on the right side of the top of the lower support.

[0012] Preferably, a limiting groove is formed on the right side of the lifting rod, a limiting block slidably connected to the limiting groove is fixedly connected to the inner wall of the right side of the external thread pipe, and a thread groove threadedly connected to the screw rod is formed at the bottom end of the lifting rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the cooperation of the lower support, U-shaped seat, external thread pipe, brake motor, upper top plate and threaded vertical guide lifting assembly, the upper top plate can be automatically controlled to rise to perform the temporary jacking and elevation work on the beam rod at the top of the ancient building wooden column, so as to temporarily replace the wooden column for support work, and provide convenience for the repair personnel to repair and clamp the wooden column. When lifting and adjusting, there is no need for personnel to operate back and forth laboriously, realizing the effect of automatically and quickly performing the jacking and elevation work, and improving the jacking and elevation efficiency;

[0015] 2. Through the cooperation of the lower support, external thread pipe, elastic pulling horizontal guide assembly, joint drive assembly, expansion support and support ball, the bottom can be supported and anti-tilted by expanding on four sides synchronously, increasing the support area at the bottom, reducing the phenomenon that the bottom support area is small and concentrated and prone to tilt, and improving the support and anti-tilt stability.

[0016] Through a series of structures provided in the present utility model, it is convenient to automatically control the upper top plate to rise to quickly perform the temporary jacking and elevation work on the beam rod at the top of the ancient building wooden column, so as to provide convenience for the repair personnel to repair and clamp the wooden column. When lifting and adjusting, there is no need for personnel to operate back and forth laboriously, improving the jacking and elevation efficiency, and it is also convenient to support and anti-tilt the bottom four sides synchronously, increasing the support area at the bottom, reducing the phenomenon that the bottom support area is small and concentrated and prone to tilt, and improving the support and anti-tilt stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a temporary jacking and elevation device for repairing damaged ancient building wooden columns proposed by the present utility model;

[0018] Figure 2 is Figure 1 the sectional structural diagram of

[0019] Figure 3 is Figure 2 the enlarged structural diagram of part A in

[0020] In the figure: 1. Lower support; 2. U-shaped seat; 3. External threaded pipe; 4. Lifting rod; 5. Screw rod; 6. Upper top plate; 7. Brake motor; 8. Expanding support; 9. Support ball; 10. Rectangular guide rod; 11. Rectangular groove; 12. Spring; 13. Internal threaded sleeve; 14. Round pipe; 15. Connecting rod; 16. Handle rod. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0022] As Figures 1 to 3 shown, a temporary support and elevation device for repairing damaged ancient building wooden columns proposed in this embodiment includes an upper top plate 6 and a lower support 1. A U-shaped seat 2 with inclined surfaces on both sides of the top is fixedly connected to the top of the lower support 1. An external threaded pipe 3 is fixedly connected to the top of the U-shaped seat 2. A threaded vertical guide lifting assembly fixedly connected to the bottom of the upper top plate 6 is installed in the external threaded pipe 3. A brake motor 7 with an output shaft fixedly connected to the threaded vertical guide lifting assembly is fixedly installed on the top of the lower support 1. Among them, the brake motor 7 is located inside the U-shaped seat 2. An anti-slip rubber sheet is adhesively fixed to the top of the upper top plate 6, and an anti-slip rubber pad is adhesively fixed to the bottom of the lower support 1. A storage battery electrically connected to the brake motor 7 is fixedly installed on the right side of the top of the lower support 1. The threaded vertical guide lifting assembly is used to drive the upper top plate 6 to move up and down when the brake motor 7 is started. During the repair work of damaged ancient building wooden columns, it is necessary to temporarily support or slightly elevate the beam rod above the wooden column. The upper top plate 6 that moves upward is used for supporting or slightly elevating the beam rod above the wooden column to temporarily replace the wooden column for support work, so as to provide repair personnel with repair clamping work for the wooden column;

[0023] Rectangular grooves 11 are opened on all four sides of the lower support 1. A spring-pulling horizontal guide assembly is installed in the rectangular grooves 11. The mutually repulsive ends of the four spring-pulling horizontal guide assemblies all extend outside the lower support 1 and are fixedly connected to expanding supports 8. Two support balls 9 are movably embedded at the bottom of the expanding support 8. The bottom of the anti-slip rubber pad is flush with the bottom of the support ball 9. A linkage drive assembly is threadedly sleeved on the external threaded pipe 3. The linkage drive assembly is hinged to the top of the side of the four expanding supports 8 close to each other. The spring-pulling horizontal guide assembly is used to horizontally guide the corresponding expanding support 8 and perform spring-pulling work when it moves outward. The linkage drive assembly is used to drive the four expanding supports 8 to expand outward or contract inward synchronously. The use of the four expanding supports 8 to expand outward can increase the bottom support area and improve the anti-tilting stability of the bottom support.

[0024] Specifically, the threaded vertical guiding and lifting assembly includes a lifting rod 4 slidably sleeved in an external threaded pipe 3. A limiting groove is formed on the right side of the lifting rod 4, and a limiting block slidably connected to the limiting groove is fixedly connected to the inner wall on the right side of the external threaded pipe 3. The arranged limiting block and the limiting groove cooperate to achieve the effects of vertically guiding and limiting and preventing the lifting rod 4 from falling off. The top end of the lifting rod 4 is fixedly connected to the bottom of the upper top plate 6. A screw rod 5 located inside the external threaded pipe 3 is rotatably installed in the top of the U-shaped seat 2. Specifically, a circular hole is formed in the top of the U-shaped seat 2, and two first bearings are fixedly sleeved in the circular hole. The inner side of the inner ring of the first bearing is fixedly connected to the outer side of the screw rod 5, achieving the effect of rotatably installing the screw rod 5. The lifting rod 4 is threadedly sleeved on the screw rod 5. Specifically, a threaded groove threadedly connected to the screw rod 5 is formed at the bottom end of the lifting rod 4. By using the threaded connection relationship between the screw rod 5 and the threaded groove, it is convenient to drive the lifting rod 4 to move up and down when the screw rod 5 rotates. The bottom end of the screw rod 5 is fixedly connected to the top end of the output shaft of the brake motor 7. The arranged lifting rod 4 and the screw rod 5 cooperate. The brake motor 7 is used to drive the screw rod 5 to rotate. The rotation of the screw rod 5 drives the lifting rod 4 to move up and down. The lifting rod 4 moving up and down drives the upper top plate 6 to lift for the jacking and elevation work.

[0025] Furthermore, the elastic pulling and horizontal guiding assembly includes rectangular guide rods 10 slidably sleeved in corresponding rectangular grooves 11. Specifically, a limiting through hole is formed in the bottom inner wall of the rectangular groove 11, and a limiting slider slidably connected to the corresponding limiting through hole is fixedly connected to the bottom of the rectangular guide rod 10, achieving the effect of limiting and preventing the rectangular guide rod 10 from falling off. Springs 12 are fixedly connected between the adjacent ends of the four rectangular guide rods 10 and the inner walls on the sides of the corresponding rectangular grooves 11 away from their openings respectively. The mutually repelling ends of the four rectangular guide rods 10 are fixedly connected to the sides of the corresponding expansion supports 8 close to the lower support 1 respectively. The arranged rectangular guide rods 10 and the springs 12 cooperate. When the four expansion supports 8 move outward and expand, they will respectively drive the corresponding rectangular guide rods 10 to slide horizontally in the rectangular grooves 11 and stretch and store energy in the springs 12. The rectangular guide rods 10 are used to horizontally guide the corresponding expansion supports 8. When the four stretched springs 12 contract later, they assist in pulling the four expansion supports 8 to contract and move back through the four rectangular guide rods 10.

[0026] Furthermore, the combined drive assembly includes an internally threaded sleeve 13 threadedly sleeved on the externally threaded tube 3. Handle rods 16 are fixedly connected to all four sides of the internally threaded sleeve 13. A circular groove communicating with its interior is formed at the bottom of the internally threaded sleeve 13. A circular tube 14 is rotatably sleeved in the circular groove. A second bearing is fixedly sleeved in the circular groove, and the inner ring of the second bearing is fixedly sleeved on the outer side of the circular tube 14, achieving the effect of rotatably mounting the internally threaded sleeve 13. By using a rotational connection method, it can prevent the rotational torque of the internally threaded sleeve 13 from being transmitted to the circular tube 14 when the internally threaded sleeve 13 rotates. The circular tube 14 is movably sleeved on the externally threaded tube 3. Inclined connecting rods 15 are hinged to the bottom of all four sides of the circular tube 14. Two opposite connecting rods 15 are symmetrically arranged. The closer sides of the four expansion supports 8 are respectively hinged to the bottom ends of the corresponding connecting rods 15. A spiral thread for threaded connection with the internally threaded sleeve 13 is formed at the bottom of the outer side of the externally threaded tube 3. The internally threaded sleeve 13, handle rods 16, circular tube 14 and connecting rods 15 are arranged in cooperation. By operating the internally threaded sleeve 13 to rotate through the handle rods 16, the internally threaded sleeve 13 rotates on the spiral thread and moves downward or upward. The internally threaded sleeve 13 drives the circular tube 14 to move upward and downward. When the circular tube 14 moves downward, it drives the four connecting rods 15 to rotate and extrude the four expansion supports 8 outward. Under the extrusion force, the four expansion supports 8 are driven to expand outward and move to perform the lower part expansion support and anti-tilting work.

[0027] The usage method of this embodiment is as follows: When in use, place this device on one side of the ancient building wooden column and under the beam rod. Personnel pull the handle rod 16 to operate the internally threaded sleeve 13 to rotate forward. The internally threaded sleeve 13 rotates on the spiral thread and moves downward. At this time, the internally threaded sleeve 13 drives the circular tube 14 to move downward. The circular tube 14 drives the four connecting rods 15 to rotate and extrude the four expansion supports 8 outward. Under the extrusion force, the four expansion supports 8 expand outward and move, driving the corresponding plurality of support balls 9 to move outward. The expansion support 8 drives the corresponding rectangular guide rod 10 to slide outward in the rectangular groove 11 and stretch the spring 12. By using the outward expansion movement of the four expansion supports 8, the support area at the bottom is increased, and the phenomenon of a relatively small and concentrated support area at the bottom is reduced, achieving the effect of synchronously expanding and supporting the four sides at the bottom for anti-tilting, improving the support anti-tilting stability, and reducing the tilting risk.

[0028] The positive brake motor 7 is actuated to drive the screw rod 5 to rotate. The screw rod 5 rotates to drive the lifting rod 4 to slide upward in the externally threaded tube 3. The lifting rod 4 drives the upper top plate 6 to move upward. The upper top plate 6 drives the anti-slip rubber sheet to support or slightly lift the beam rod upward to temporarily replace the wooden column for support work, providing a support for repair personnel to repair and clamp the wooden column. By using the method of automatically controlling the lifting of the upper top plate 6 through screw drive, there is no need for personnel to operate laboriously back and forth during the lifting adjustment, achieving the effect of automatically and quickly performing the support and lifting work and improving the support and lifting efficiency.

[0029] After the subsequent repair personnel complete the repair and reinforcement of the wooden pillars, they start the brake motor 7 in the reverse direction. Similarly, the movement direction of the brake motor 7 is completely opposite to the above-mentioned forward start, so as to drive the upper top plate 6 to move downward to release the temporary support work, and then rotate the internal threaded sleeve 13 in the reverse direction to make it move back upward and drive the round tube 14 to move back upward. The round tube 14 pulls the four expanded supports 8 inward through four connecting rods 15 to retract. At this time, the elastic force of the four springs 12 in the stretched state assists in pulling the four expanded supports 8 to retract and move back through the four rectangular guide rods 10, thereby reducing the occupied area for transportation.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A temporary support and elevation device for repairing damaged ancient building wooden columns, comprising an upper top plate (6) and a lower support (1), characterized in that: The top of the lower support (1) is fixedly connected with a U-shaped seat (2) with inclined surfaces on both sides at the top. The top of the U-shaped seat (2) is fixedly connected with an external threaded pipe (3). A threaded vertical guiding and lifting assembly fixedly connected to the bottom of the upper top plate (6) is installed inside the external threaded pipe (3). A brake motor (7) with an output shaft fixedly connected to the threaded vertical guiding and lifting assembly is fixedly installed on the top of the lower support (1); Rectangular grooves (11) are formed on the four sides of the lower support (1). Elastic pulling and horizontal guiding assemblies are installed inside the rectangular grooves (11). The mutually repelling ends of the four elastic pulling and horizontal guiding assemblies all extend outside the lower support (1) and are fixedly connected with expansion supports (8). Two support balls (9) are movably embedded at the bottom of the expansion supports (8). A linkage drive assembly is threadedly sleeved on the external threaded pipe (3). The top of the side of the linkage drive assembly close to the four expansion supports (8) is hinged; 2. The temporary support and elevation device for repairing damaged ancient building wooden columns according to claim 1, characterized in that: The threaded vertical guiding and lifting assembly includes a lifting rod (4) slidably sleeved inside the external threaded pipe (3). The top end of the lifting rod (4) is fixedly connected to the bottom of the upper top plate (6). A screw rod (5) located inside the external threaded pipe (3) is rotatably embedded at the top of the U-shaped seat (2). The lifting rod (4) is threadedly sleeved on the screw rod (5). The bottom end of the screw rod (5) is fixedly connected to the top end of the output shaft of the brake motor (7); 3. The temporary support and elevation device for repairing damaged ancient building wooden columns according to claim 2, wherein: The elastic pulling and horizontal guiding assembly includes a rectangular guiding rod (10) slidably sleeved inside the corresponding rectangular groove (11). Springs (12) are fixedly connected between the mutually approaching ends of the four rectangular guiding rods (10) and the inner wall of the side of the corresponding rectangular groove (11) away from its opening. The mutually repelling ends of the four rectangular guiding rods (10) are respectively fixedly connected to the side of the corresponding expansion support (8) close to the lower support (1); 4. The temporary support and elevation device for repairing damaged ancient building wooden columns according to claim 3, characterized in that: The linkage drive assembly includes an internal threaded sleeve (13) threadedly sleeved on the external threaded pipe (3). Handle rods (16) are fixedly connected to the four sides of the internal threaded sleeve (13). A circular groove communicating with its interior is formed at the bottom of the internal threaded sleeve (13). A circular pipe (14) is rotatably sleeved inside the circular groove. The circular pipe (14) is movably sleeved on the external threaded pipe (3). Inclined connecting rods (15) are hinged to the bottom of the four sides of the circular pipe (14). The two opposite connecting rods (15) are symmetrically arranged. The top of the side of the four expansion supports (8) close to each other is respectively hinged to the bottom end of the corresponding connecting rod (15). A spiral thread threadedly connected to the internal threaded sleeve (13) is formed at the outer bottom of the external threaded pipe (3); 5. The temporary support and elevation device for repairing damaged ancient building wooden columns according to claim 1, characterized in that: An anti-slip rubber sheet is adhesively fixed to the top of the upper top plate (6). An anti-slip rubber pad is adhesively fixed to the bottom of the lower support (1). The bottom of the anti-slip rubber pad is flush with the bottom of the support balls (9); 6. The temporary support and elevation device for repairing damaged ancient building wooden columns according to claim 1, characterized in that: A storage battery electrically connected to the brake motor (7) is fixedly installed on the top right side of the lower support (1); 7. The temporary support and elevation device for repairing damaged ancient building wooden columns according to claim 2, wherein: A limiting groove is formed on the right side of the lifting rod (4). A limiting block slidably connected to the limiting groove is fixedly connected to the inner wall of the right side of the external threaded pipe (3). A threaded groove threadedly connected to the screw rod (5) is formed at the bottom end of the lifting rod (4);

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