Adjustable support device for door frame repair

Abstract

The present invention relates to the field of door frame repair support technology, and specifically to an adjustable support device for door frame repair, further comprising a frame body 2 for accurately aligning and assembling the frame body 1; the frame body 2 comprises a lifting assembly for positioning and height-adjusting the L-plate and a positioning assembly for clamping and positioning the bottom plate. In the present invention, in the frame body 1, the accurately arranged bottom plate and its L-plate, in conjunction with the support screw, ensure that no thread misalignment occurs during assembly. The bottom plate is horizontally positioned by the frame body 2, so that the bottom surface of the support screw is in close contact with the bottom plate, avoiding tilting of the bottom plate due to potholes in the foundation a4 and point-to-point contact between the support screw and the bottom plate; compared with traditional means, the upper part of the support screw is used as a driving member to achieve the function of tightening the bottom plate and the L-plate; the nut set in the middle of the support screw is used as a driving member, which can cooperate with the countersunk hole a1 on the wooden frame a2 to avoid the end of the screw being exposed. On the one hand, it can improve the stability of the screw connection, and secondly, it can ensure the flatness of the base surface after repair.

Description

Technical Field

[0001] The present invention relates to the technical field of door frame repair supports, and in particular to an adjustable support device for door frame repair. Background Art

[0002] In the door frame repair project of the cold storage, ensuring the stable support of the wooden frame a2 in the foundation a4 and the foundation pit a5 and the uniform filling of the subsequent filler a3 are the key links to ensure the quality of the repair. In the existing technology, see Figure 1 As shown, when the wooden frame a2 is positioned on the foundation a4 through the bracket, the bottom plate is located on the surface of the foundation a4. After the lifting plate is fixed on the wooden frame a2, the screw thread connection passes through the lifting plate and presses against the bottom plate on the foundation a4, and the bottom plate serves as the main load-bearing support point.

[0003] When using a simple support frame to place the wooden frame a2 in the foundation pit a5, if there are potholes and unevenness on the surface of the foundation a4, point-to-point contact is easily formed between the support frames, making it difficult to provide balanced and stable supporting force. This unstable support will not only cause the wooden frame a2 to shake and shift during the repair process, affecting the repair results, but may also cause the subsequent filling filler to be unevenly distributed, making it impossible to effectively and evenly fill the foundation pit a5, reducing the overall stability and service life of the door frame after repair.

[0004] Therefore, those skilled in the art provide an adjustable supporting device for repairing a door frame to solve the problems raised in the above background technology. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides:

[0006] An adjustable support device for door frame repair, comprising: a frame body 1 for bearing the weight of a wooden frame a2 during door frame repair, the frame body 1 including support screws, a bottom plate, and an L-plate, the bottom plate being placed on the surface of a foundation a4 of a foundation pit a5 and located below the wooden frame a2;

[0007] The feature is that: the support screw is threadedly connected with a nut for clamping the L-plate;

[0008] A locking ring is rotatably provided in the base plate. The locking ring can be fixed relative to the base plate through a locking unit. An inner shaft cylinder for receiving the bottom of the support screw is fixed in the locking ring.

[0009] An adjustable support device for door frame repair, further comprising a frame body 2 for accurately aligning and assembling the frame body 1;

[0010] The second frame includes a lifting component for positioning the L-plate and adjusting its height and a positioning component for clamping and positioning the bottom plate.

[0011] Preferably, the lifting assembly includes a lifting frame for positioning the L-plate, and the interior of the lifting frame is hollowed out, and a driving screw barrel is rotatably provided inside the lifting frame, the bottom of the driving screw barrel rotates and passes through the outside of the lifting frame, and a worm gear is fixedly installed on the outer wall; the lifting frame is equipped with a magnet plate for magnetically positioning the L-plate;

[0012] The inner side of the driving screw barrel is threadedly connected with a positioning screw, and the outer side of the positioning screw is provided with a vertical moving frame.

[0013] Preferably: the lifting assembly is provided with a transmission assembly for providing power;

[0014] The transmission assembly includes a worm first meshing with a worm wheel first, and an inner square rod is movably provided inside the worm first, and a worm wheel second is fixedly mounted on one end of the inner square rod, the worm wheel second is meshing with a worm second, and a servo motor first is connected to the bottom end of the worm second, a side plate is fixedly mounted on the side of the servo motor first, and an electric cylinder is installed between the side plate and the lifting frame;

[0015] An inner square groove is provided on the inner side of the worm, and the inner square rod is slidably inserted into the inner side of the inner square groove.

[0016] Preferably, the positioning assembly includes a transmission chassis, an adjusting screw is rotatably provided inside the transmission chassis, a first helical gear is fixedly mounted on the outer wall of one end of the adjusting screw, and the first helical gear can be meshed with a third helical gear;

[0017] A transmission inner rod is fixedly provided at the center of the third helical gear, and a transmission square rod is provided on the outer sliding sleeve of the transmission inner rod, and one end of the transmission square rod is connected to a servo motor 2 fixedly assembled on the inner side of the transmission base frame, and a horizontal axis frame is installed on the rotation assembly of the third helical gear, and an electric telescopic rod is installed between the horizontal axis frame and the transmission base frame;

[0018] The end of the connecting rod away from the transmission square rod is integrally fixed with a No. 4 helical gear, the No. 4 helical gear is meshed with the No. 5 helical gear, the No. 5 helical gear is fixedly assembled with a driven rod, and both ends of the driven rod are fixedly assembled with screw bodies with opposite thread directions. Both ends of the front side of the transmission chassis are integrally fixed with a limiting frame, the screw body is rotatably arranged inside the limiting frame, and the outer side of the screw body is threadedly connected to a clamping plate that is movably located inside the limiting frame, and the side of the clamping plate is provided with a rubber pad that prevents slipping and contacts the bottom plate.

[0019] An adjustable support device for door frame repair also includes a rotating assembly for actively applying force to a synchronous nut;

[0020] The rotating assembly includes a synchronous belt rotatably arranged in a hollow portion of the lifting frame;

[0021] The top end of the worm gear 2 is fixedly equipped with a synchronous wheel, and the synchronous belt and the synchronous wheel are meshed;

[0022] The synchronous belt is in a disconnected state, and a female connector is integrally fixed to one end of the synchronous belt, and a male connector is integrally fixed to the other end of the synchronous belt;

[0023] Tension holes are provided on the concave surfaces at both ends of the female head, and two tension latches are provided on the male head in a vertically sliding manner corresponding to the tension holes;

[0024] Two sets of tension adjustment cylinders are provided between the two tension bayonets, and tension springs are installed between the two sets of tension adjustment cylinders and the two tension bayonets; the tension springs are used to adjust the tensioning force of the tension bayonets; a bidirectional screw is threadedly connected between the two sets of tension adjustment cylinders, and a positioning shaft housing fixedly arranged on the inner side of the male head is rotatably installed in the middle of the bidirectional screw;

[0025] A worm gear three is fixedly provided on the outer wall of the middle part of the bidirectional screw, and the worm gear three is engaged with a worm gear three that is rotatably arranged on the inner side of the positioning shaft housing; one end of the worm gear three is rotated and located outside the male head, and is provided with an internal hexagonal slot for applying force and rotating with an external internal hexagonal wrench.

[0026] Preferably: the locking unit includes a clamping groove provided on the inner wall of the bottom plate;

[0027] A clamping rod is movably provided on the inner side of the clamping groove, and a horizontal screw is threadedly connected on the inner side of the clamping rod, and a prismatic rod is meshedly provided on the outer side of one end of the horizontal screw.

[0028] Technical effects and advantages of the present invention:

[0029] In the present invention, the accurately arranged bottom plate and its L-plate in the frame one cooperate with the supporting screws to ensure that no thread misalignment occurs during assembly. The bottom plate is horizontally positioned by the frame two so that the bottom surface of the supporting screws is in close contact with the bottom plate, thereby avoiding the tilting of the bottom plate and the point-to-point contact between the supporting screws and the bottom plate due to the potholes in the foundation a4, which would damage the balance of the force. In this way, a stable and balanced supporting force can be provided for the wooden frame a2, which is beneficial for evenly filling the foundation pit a5 between the wooden frame a2 and the foundation a4 with the filler a3 when repairing the door frame, thereby enhancing the stability of the door frame and the repair quality.

[0030] The present invention has a synchronous belt in a detachable state. The female head and the male head cooperate with each other through the tension pin and the tension hole, and can be automatically separated under force, so that the synchronous belt can be disassembled conveniently when the L-plate spirally locks the support screw. The tension adjustment structure composed of the bidirectional screw, worm gear three, worm three and the tension adjustment cylinder and tension spring can adjust the tension of the synchronous belt as needed to meet the requirements of different working scenarios, ensure stable transmission of the synchronous belt, and improve the transmission reliability of the support device.

[0031] Compared with traditional means, the present invention utilizes the upper part of the support screw as a driving member to achieve the function of tightening the base plate and the L-plate; the nut set in the middle of the support screw is used as a driving member, which can cooperate with the countersunk hole a1 on the wooden frame a2 to avoid the exposure of the screw end. On the one hand, it can improve the stability of the screw connection, and secondly, it can also ensure that the base surface is flat after repair.

[0032] In the present invention, after the base plate is precisely positioned by the clamping plate, it is placed inside the foundation pit a5 of the foundation a4 and the wooden frame a2. Through the placement of the frame body 2, the base plate and the foundation pit a5 can maintain a horizontal state, providing a stable foundation for subsequent construction operations. Secondly, when the L-plate and the base plate are locked by the support screws, this process not only firmly connects the wooden frame, but also adjusts the base plate and the vertical adjustment frame at the same time, and can apply uniform pressure to the inside of the foundation pit a5 below the base plate, effectively leveling the potholes in the foundation pit a5. The foundation pit a5 after the base plate is pressurized and leveled provides a balanced supporting force for the base plate, which enhances the stability of the entire structure and ensures that the support screws can maintain a uniform stress state when under pressure, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of a problem with the installation of a support frame during door frame repair provided by this application;

[0034] Figure 2 This is a schematic structural diagram of an adjustable support device for door frame repair provided by the present application;

[0035] Figure 3 This is a schematic diagram of the principle of an adjustable support device for door frame repair provided by the present application;

[0036] Figure 4 This is a schematic structural diagram of a bottom plate in an adjustable support device for door frame repair provided by the present application;

[0037] Figure 5 This is a schematic cross-sectional view of a supporting top frame structure in an adjustable supporting device for door frame repair provided by the present application;

[0038] Figure 6 This is a schematic structural diagram of a synchronous wheel in an adjustable support device for door frame repair provided by the present application;

[0039] Figure 7 This application provides an adjustable support device for door frame repair Figure 6 Schematic diagram of the partially enlarged structure;

[0040] Figure 8 This is a schematic structural diagram of a female head in an adjustable support device for door frame repair provided by the present application;

[0041] Figure 9 This is a schematic structural diagram of a synchronous belt in an adjustable support device for door frame repair provided by the present application;

[0042] Figure 10 This application provides an adjustable support device for door frame repair. Figure 9 Schematic diagram of the structure at B in the middle;

[0043] Figure 11 This is a structural schematic diagram of the tension hole plane in an adjustable support device for door frame repair provided by the present application;

[0044] Figure 12 This is a structural schematic diagram of the tension pin plane in an adjustable support device for door frame repair provided by the present application;

[0045] Figure 13 This is a schematic structural diagram of the split vertical moving frame in an adjustable support device for door frame repair provided by the present application;

[0046] Figure 14 This application provides an adjustable support device for door frame repair Figure 13 Schematic diagram of the structure at A in the middle;

[0047] Figure 15 This is a schematic structural diagram of a vertical adjustment frame in an adjustable support device for door frame repair provided by the present application;

[0048] Figure 16 This is a schematic structural diagram of a vertical moving frame in an adjustable support device for door frame repair provided by the present application;

[0049] Figure 17 This is a schematic structural diagram of a lifting frame in an adjustable support device for door frame repair provided by the present application;

[0050] Figure 18 This application provides an adjustable support device for door frame repair Figure 17 Schematic diagram of the structure at A in the middle;

[0051] Figure 19 This is a schematic structural diagram of a transmission chassis in an adjustable support device for door frame repair provided by the present application;

[0052] Figure 20 This application provides an adjustable support device for door frame repair Figure 19 Schematic diagram of the structure at point C in the middle.

[0053] In the picture:

[0054] 1. Support screw; 2. Base plate; 3. L-plate; 4. Nut; 5. Inner shaft; 6. Locking ring; 7. Clamping groove; 8. Synchronous nut; 9. Magnet plate;

[0055] 11. Support and transfer frame; 12. Load-bearing bracket; 13. Vertical adjustment frame; 14. Vertical screw; 15. Prismatic rod; 16. Bevel gear 1; 17. Return spring 2; 18. Bevel gear 2; 19. Horizontal screw; 20. Clamping rod;

[0056] 21. Internal screw block; 22. Vertical moving frame;

[0057] 23. Positioning screw; 24. Lifting frame; 25. Driving screw; 26. Worm gear 1; 27. Worm 1; 28. Inner square rod;

[0058] 29. Worm gear 2; 30. Worm gear 2; 31. Servo motor 1; 32. Synchronous gear; 33. Electric cylinder;

[0059] 34. Synchronous belt; 35. Female connector; 36. Tension hole; 37. Male connector; 38. Tension latch; 39. Tension adjustment cylinder; 40. Tension spring; 41. Positioning shaft housing; 42. Bidirectional screw; 43. Worm gear (3); 44. Worm gear (3); 45. Hexagon socket;

[0060] 46. ​​Transmission chassis; 47. Adjustment screw; 48. No. 1 helical gear; 49. Transmission inner rod; 50. No. 3 helical gear; 51. Transmission square rod; 52. Servo motor 2; 53. Electric telescopic rod; 54. No. 4 helical gear; 55. No. 5 helical gear; 56. Driven rod; 57. Clamping plate;

[0061] a1, countersink a1; a2, wooden frame a2; a3, filler a3; a4, foundation a4; a5, foundation pit a5. DETAILED DESCRIPTION

[0062] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The examples of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0063] For example 1, please refer to Figures 2 to 5 In this embodiment, an adjustable support device for door frame repair is provided, comprising: a frame body 1 for bearing the weight of a wooden frame a2 during door frame repair; the frame body 1 can support and position the wooden frame a2 in a foundation pit a5 of a foundation a4, thereby facilitating the subsequent filling of a filler a3 in the foundation pit a5 between the wooden frame a2 and the foundation a4; a frame body 2 for accurately positioning the frame body 1 in the foundation pit a5; the frame body 2 can sequentially assist in placing a plurality of supporting and positioning structures in the foundation pit a5;

[0064] The frame body 1 includes a support screw 1, a bottom plate 2 and an L-plate 3. The bottom plate 2 is used to be placed on the surface of the foundation a4 and is located below the wooden frame a2. When the support screw 1 contacts the bottom plate 2, the bottom plate 2 is horizontally positioned by the frame body 2 to ensure that the bottom surface of the support screw 1 and the bottom plate 2 are in surface contact. This can prevent the bottom plate 2 from tilting due to potholes in the ground in the foundation pit a5 when the bottom plate 2 is subjected to force, resulting in point-to-point contact between the support screw 1 and the bottom plate 2, thereby destroying the balance of force.

[0065] The bottom plate 2 is in contact with the surface of the foundation a4. When the filler is subsequently filled into the foundation pit a5 between the wooden frame a2 and the foundation a4, the filler can evenly cover and fill the cavity between the bottom plate 2 and the wooden frame a2. The L-plate 3 is used to support the wooden frame a2 at a right angle on the wooden frame a2 above the bottom plate 2, and the height of the L-plate 3 and the bottom plate 2 is adjusted via the support screw 1. The support screw 1 cooperates between the L-plate 3 and the bottom plate 2 to apply a balanced and stable supporting force to the wooden frame a2, which is beneficial for evenly filling the filler a3 into the foundation pit a5 when repairing the door frame. The top end of the support screw 1 is threadedly connected to a nut 4. The nut 4 is used to fasten and lock the support screw 1 into the wooden frame a2 after the support screw 1 is inserted into the hole of the wooden frame a2.

[0066] An inner shaft cylinder 5 is rotatably mounted inside the base plate 2, and a locking ring 6 is fixedly mounted on the outer wall of the inner shaft cylinder 5 and is rotatably mounted on the inner side of the base plate 2. The inner shaft cylinder 5 has hexagonal holes extending vertically vertically therethrough, and an outer hexagonal rod fixedly mounted on the bottom end of the support screw 1 is placed in the corresponding hexagonal hole. A clamping groove 7 is formed at the bottom of the base plate 2 at the position of the locking ring 6 and extends outward. After the locking ring 6 is locked by the locking unit, the inner shaft cylinder 5 is locked, and the support screw 1 mounted thereon also remains locked, i.e., the rotational freedom between the support screw 1 and the base plate 2 is restricted.

[0067] For example 2, please refer to Figures 6 to 12 , in this embodiment, a lifting structure for positioning and adjusting two pairs of L-plates 3 in a frame body of an adjustable support device for door frame repair is provided;

[0068] The frame 2 includes a lifting structure for positioning the L-plate 3. The lifting structure includes a lifting frame 24, and a driving screw 25 is rotatably installed inside the lifting frame 24. The bottom of the driving screw 25 rotates and passes through the outside of the lifting frame 24, and a worm gear 26 is fixedly installed on the outer wall. The lifting frame 24 is equipped with a magnet plate 9 for magnetically attracting and positioning the L-plate 3.

[0069] The lifting structure needs to be implemented by power, and the lifting structure is equipped with a transmission structure. A worm gear 26 is meshed with a worm 27, and an inner square rod 28 is movably provided on the inner side of the worm 27. One end of the inner square rod 28 is fixedly equipped with a worm gear 29 on the outside. An inner square groove is opened on the inner side of the worm 27, and the inner square rod 28 is slidably inserted into the inner side of the inner square groove, and the inner square rod 28 can move inside the inner square groove. The transmission structure includes a worm 2 30 meshing with the worm gear 2 29, and the bottom end of the worm 2 30 is connected to a servo motor 1 31. The top end of the worm 2 30 is fixedly equipped with a synchronous wheel 32, and the outer side of the synchronous wheel 32 is meshed with a synchronous belt 34.

[0070] When the synchronous nut 8 of the L-plate 3 is used as an active driving member, the synchronous nut 8 needs to be actively driven, and the frame body 2 is provided with a rotating assembly for actively applying force to the synchronous nut 8. The synchronous belt 34 is driven by the synchronous wheel 32 to tighten or loosen the synchronous nut 8 of the L-plate 3. The synchronous belt 34 is in a disconnected state, and a female connector 35 is integrally fixed to one end of the synchronous belt 34, and a male connector 37 is integrally fixed to the other end of the synchronous belt 34.

[0071] Tension holes 36 are formed on the concave surfaces at both ends of the female end 35, and two tension pins 38 are provided on the male end 37 so as to slide vertically corresponding to the positions of the tension holes 36. The female end 35 and the male end 37 are clamped together by the tension pins 38 and are arranged inside the tension holes 36. The synchronous belt 34 is automatically separated when subjected to a strong external force through the clamping connection between the female end 35 and the male end 37, which facilitates the separation of the synchronous belt 34 from the support screw 1.

[0072] Two sets of tension adjustment cylinders 39 are disposed between the two tension bayonet pins 38 , and tension springs 40 are installed between the two sets of tension adjustment cylinders 39 and the two tension bayonet pins 38 ; the tension springs 40 adjust the tensioning force of the tension bayonet pins 38 ; a bidirectional screw 42 is threadedly connected between the two sets of tension adjustment cylinders 39 , and a positioning shaft housing 41 fixedly mounted on the inner side of the male head 37 is rotatably installed in the middle of the bidirectional screw 42 ;

[0073] A worm gear 43 is fixedly mounted on the outer wall of the middle portion of the bidirectional screw 42, and the worm gear 43 meshes with a worm 44 that is rotatably mounted on the inner side of the positioning shaft housing 41. One end of the worm 44 is rotatably positioned outside the male head 37 and is provided with an internal hexagonal slot 45 for applying force to the worm with an external internal hexagonal wrench.

[0074] When the bidirectional screw 42 and the worm gear 3 44 mesh and rotate with each other, the two sets of tension adjustment cylinders 39 can be spirally driven (i.e., when the bidirectional screw 42 rotates, the two tension adjustment cylinders 39 move away from or approach each other), so that the two sets of tension adjustment cylinders 39 can adjust the preload of the tension spring 40, thereby adjusting the tension of the synchronous belt 34 when it is disengaged, which is conducive to adjusting the locking rotation degree of the synchronous nut 8 according to the tension degree; the side of the servo motor 31 is fixedly assembled with a side plate, and an electric cylinder 33 is installed between the side plate and the lifting frame 24, and a moving groove for the synchronous wheel 32 is opened along the bottom of the inner side of the lifting frame 24;

[0075] The electric cylinder 33 is used to adjust the position of the synchronous wheel 32 assembled on the servo motor 31 on the side frame. When the synchronous wheel 32 moves toward the driving screw barrel 25, it will stretch the synchronous belt 34, and the stretching will make the synchronous belt 34 close to the outer wall of the synchronous nut 8; the inner side of the driving screw barrel 25 is threadedly connected to the positioning screw 23, and the vertical moving frame 22 is fixedly provided on the outer side of the positioning screw 23.

[0076] For example three, please refer to Figures 13 to 20 , in this embodiment, a positioning structure for clamping and positioning the bottom plate 2 of the frame body in an adjustable support device for door frame repair is provided;

[0077] The positioning screw 23 is fixedly assembled on the inner side of the vertical moving frame 22. When the driving screw 25 is actively rotated, the rotating driving screw 25 is spirally driven along the positioning screw 23, and the lifting frame 24 can be raised along with the rising L-plate 3 while the synchronous belt 34 locks the synchronous nut 8. The frame body 2 also includes a supporting frame 11 located on the wooden frame a2, and a load-bearing bracket 12 is installed on the supporting frame 11.

[0078] A vertical adjustment frame 13 is vertically movably provided on the outer side of the end of the load-bearing bracket 12 away from the supporting and moving frame 11, and a vertical screw 14 is rotatably assembled on the inner side of the vertical adjustment frame 13. The load-bearing bracket 12 and the vertical screw 14 are in a threaded connection relationship; a prismatic rod 15 is movably provided on the inner side of the vertical screw 14, and a hand lever body rotatably assembled on the inner side of the vertical screw 14 is fixed to the top end of the prismatic rod 15;

[0079] A return spring 2 17 is assembled between the prismatic rod 15 and the bottom end of the vertical screw 14, and a bevel gear 16 is integrally fixed to the bottom end of the prismatic rod 15, and a bevel gear 2 18 is meshed with the bottom of the bevel gear 16. A horizontal screw 19 is integrally fixed to the axis of the bevel gear 2 18. The horizontal screw 19 and the bevel gear 2 18 are rotatably arranged at the bottom end of the vertical adjustment frame 13; a limiting frame fixed to the outer wall of the vertical adjustment frame 13 is provided on the outside of the horizontal screw 19, and a clamping rod 20 is provided on the outer sleeve of the limiting frame and is threadedly connected to the horizontal screw 19;

[0080] An inner screw block 21 is fixed to the bottom of the vertical moving frame 22, and a transmission base 46 is provided on the outer side of the inner screw block 21 and is integrally fixed to the vertical adjustment frame 13. An adjustment screw 47 is rotatably provided on the inner side of the transmission base 46, and a threaded connection is formed between the adjustment screw 47 and the inner screw block 21. A first bevel gear 48 is fixedly mounted on the outer wall of one end of the adjustment screw 47, and the first bevel gear 48 can mesh with a third bevel gear 50.

[0081] A transmission inner rod 49 is fixedly provided at the center of the third helical gear 50, and a transmission square rod 51 is slidably sleeved on the outer side of the transmission inner rod 49. One end of the transmission square rod 51 is connected to a servo motor 2 52 fixedly mounted on the inner side of the transmission base frame 46. A horizontal axis frame is rotatably mounted on the third helical gear 50, and an electric telescopic rod 53 is installed between the horizontal axis frame and the transmission base frame 46.

[0082] The electric telescopic rod 53 is used to adjust the state of engagement or non-engagement of the third bevel gear 50 and the first bevel gear 48; the transmission inner rod 49 is movably provided with a connecting rod at one end away from the transmission square rod 51. When the third bevel gear 50 is in meshing state with the first bevel gear 48, the transmission inner rod 49 is disengaged from the clamping state with the connecting rod, and the end of the connecting rod away from the transmission square rod 51 is integrally fixed with the fourth bevel gear 54, the fourth bevel gear 54 is meshed with the fifth bevel gear 55, and the fifth bevel gear 55 is fixedly equipped with a driven rod 56, and both ends of the driven rod 56 are fixedly equipped with screw bodies with opposite thread directions, and both ends of the front side of the transmission base frame 46 are integrally fixed with a limit frame, the screw body is rotatably arranged on the inside of the limit frame, and the outer side of the screw body is threadedly connected to a clamping plate 57 movably located on the inside of the limit frame, and the side of the clamping plate 57 is provided with a rubber pad for anti-slip contact with the bottom plate 2.

[0083] According to the above embodiment, the working principle of the present invention is:

[0084] Support and stability: The bottom plate 2 and L-plate 3 are positioned by the second frame and placed below the wooden frame a2 on the surface of the foundation pit a5, the foundation a4. The L-plate 3 is aligned with the wooden frame a2 at a right angle to support the wooden frame a2 above the bottom plate 2. The two are connected by the support screw 1. The second frame can ensure the accurate placement of the bottom plate 2 and the L-plate 3. The bottom plate 2 is horizontally positioned by the second frame, so that the bottom surface of the support screw 1 is in close contact with the bottom plate 2, avoiding the bottom plate 2 from tilting due to the potholes in the foundation a4. The support screw 1 and the bottom plate 2 are in point-to-point contact, ensuring the balance of force and providing stable support for the wooden frame a2.

[0085] Holes for the support screw 1 to pass through need to be drilled in the wooden frame a2, and the positions of the bottom plate 2 and the L plate 3 correspond to the holes in the wooden frame a2;

[0086] Height adjustment and locking: Pass the support screw 1 through the wooden frame a2 and the L-plate 3 in sequence, then thread it into the synchronous nut 8, and finally push it into the locking ring 6 (lock the position of the synchronous nut 8 and rotate the support screw 1 to adjust the distance between the synchronous nut 8 and the base plate 2); then lock the locking ring 6 through the clamping groove 7, and rotate the synchronous nut 8 through the synchronous belt 34 to make it rise and adjust along the threaded connection of the support screw 1 to achieve the height adjustment of the wooden frame a2.

[0087] Working principle of frame 2

[0088] Positioning and installation assistance: It is convenient to place the frame 1 in the foundation pit a5. The magnet plate 9 on the lifting frame 24 magnetically attracts the L plate 3 to assist in positioning. The lifting frame 24 is hollowed out inside, and a driving screw barrel 25 is arranged to rotate. The bottom of the driving screw barrel 25 passes through the lifting frame 24 and the outer wall is equipped with a worm gear 1 26, which meshes with a worm 1 27; an inner square rod 28 is movably arranged inside the worm 1 27, and a worm gear 29 is installed at one end of the inner square rod 28. The worm gear 29 meshes with a worm 2 30, and the worm 2 30 is driven by a servo motor 1 31; start the servo motor 1 31 , power is provided to the worm 2 30, so that the rotating worm 2 30 meshes with the worm gear 2 29, and the rotating worm gear 29 drives the inner square rod 28 to rotate, so that the worm 1 27 connected to the inner square rod 28 meshes and rotates with the worm gear 1 26, and the rotational force of the worm gear 1 26 is transmitted to the driving screw 25. The driving screw 25 rotates to cause the positioning screw 23 to drive the lifting frame 24 to rise inside the vertical moving frame 22, so that when the L-plate 3 is threadedly connected and raised along the supporting screw 1, the lifting frame 24 rises synchronously along the vertical moving frame 22;

[0089] Drive and adjust the synchronous belt 34: the servo motor 1 31 drives the worm 2 30 to rotate, driving the top synchronous wheel 32 to rotate, and the synchronous wheel 32 drives the synchronous nut 8 of the L plate 3 to rotate through the synchronous belt 34, so that the L plate 3 is lifted up along the support screw 1 and pressed against the wooden frame a2 through the synchronous nut 8, which is conducive to the holes on the side of the L plate 3 being fixed to the wooden frame a2 through the external locking bolt; when the synchronous belt 34 is automatically disconnected, it is composed of a female head 35 and a male head 37, which are connected by a tension pin 38 and a tension hole 36; when the tension of the synchronous belt 34 is too large, the synchronous belt 34 applies a compressive force to the tension pin 38 through the tension hole 36 of the female head 35, so that the tension pin 38 compresses the tension spring 40, compressing The tension spring 40 at the rear resets the tension bayonet 38 into the male head 37, thereby realizing automatic separation of the synchronous belt 34, facilitating disassembly of the L plate 3 and the support screw 1. When changing the tension of the tension bayonet 38 out of the tension hole 36, the external hexagonal wrench is used to apply force to the hexagonal groove 45 of the worm gear 3 44, so that the worm gear 3 44 rotates. The rotating worm gear 3 44 engages the worm gear 3 43 to rotate, and the worm gear 3 43 rotates the bidirectional screw 42. The bidirectional screw 42 threadably connects the two sets of tension adjusting cylinders 39, and the distance between the two sets of tension adjusting cylinders 39 is adjusted to compress the tension spring 40, thereby increasing the tension of the synchronous belt 34 when it is separated. The tension of the synchronous belt 34 when it is separated can control the locking rotation degree of the synchronous nut 8.

[0090] The position adjustment and coordination of the synchronous wheel 32 are carried out. The electric cylinder 33 adjusts the position of the synchronous wheel 32 assembled with the servo motor 31. When the synchronous wheel 32 moves toward the driving screw barrel 25, the synchronous belt 34 is stretched to make it close to the outer wall of the synchronous nut 8, thereby enhancing the transmission effect. When the synchronous belt 34 is locked to the synchronous nut 8, the driving screw barrel 25 rotates and is threadedly connected to the positioning screw rod 23, driving the lifting frame 24 to rise along with the rising L-plate 3, ensuring the stable operation of the entire support device.

[0091] The reason why the synchronous nut 8 is located on the lower side of the L-plate 3 is that: on the one hand, the space between the synchronous nut 8 and the support screw 1 can be filled with filler and locked; on the other hand, the synchronous nut 8 can be used to tighten the L-plate 3 and the wooden board a2; when the tightening starting point is the synchronous nut 8, it can ensure that the nut 4 can eventually be hidden in the countersunk hole on the wooden board a2 (see Figure 1 Figure below); and, in conjunction with the locking unit to lock the rotational freedom of the support screw 1, that is, when tightened, the wooden board a2 and the support screw 1 only undergo vertical displacement, so the nut can also cooperate with the shape of the countersunk hole (non-circular) to prevent the support screw 1 from loosening.

[0092] The support and moving frame 11 is located on the wooden frame a2, and the load-bearing frame 12 is fixed to the inner side of the support and moving frame 11 by a locking bolt. Its installation position can be adjusted laterally according to actual needs; when it is necessary to adjust the height of the load-bearing frame 12 relative to the support and moving frame 11, the vertical screw 14 is rotated. Since the load-bearing frame 12 and the vertical screw 14 are threadedly connected, the rotation of the vertical screw 14 will cause it to move on the load-bearing frame 12, thereby driving the vertical adjustment frame 13 to rise and fall to adapt to the support requirements of the wooden frame a2 of different heights;

[0093] When the inner shaft cylinder 5 is locked, the hand lever body is manually pressed to put the bevel gear 16 and the bevel gear 2 18 into meshing state, and then the hand lever body is rotated to drive the prismatic rod 15 to rotate (the rotation of the prismatic rod 15 will not rotate the vertical screw 14), and the bevel gear 16 at the bottom end of the prismatic rod 15 rotates accordingly; when the bevel gear 16 and the bevel gear 2 18 are meshed, the rotation of the bevel gear 16 will drive the bevel gear 2 18 to rotate, and then drive the horizontal screw 19 to rotate; the horizontal screw 19 and the clamping rod 20 are threadedly connected. Under the constraint of the limiting frame, the clamping rod 20 will move laterally with the rotation of the horizontal screw 19 and support the locking ring 6 to achieve the tightening of the locking ring 6.

[0094] The inner screw block 21 at the bottom of the vertical moving frame 22 is threadedly connected to the adjusting screw 47 in the transmission base frame 46; start the servo motor 2 52, and its power is transmitted through the transmission square rod 51; when the electric telescopic rod 53 adjusts the third bevel gear 50 to engage with the first bevel gear 48 (the transmission inner rod 49 is disengaged from the card set with the connecting rod), the rotation of the servo motor 2 52 will engage the third bevel gear 50 and drive the first bevel gear 48 to rotate, thereby rotating the adjusting screw 47, driving the inner screw block 21 to drive the vertical moving frame 22 to move, and the adjustable assembly The L-plate 3 is in the horizontal position on the lifting frame 24; when the electric telescopic rod 53 adjusts the No. 3 bevel gear 50 and the No. 1 bevel gear 48 to be out of meshing, the transmission inner rod 49 and the connecting rod are in a locked state. When the transmission inner rod 49 rotates, it drives the No. 4 bevel gear 54 to mesh and rotate with the No. 5 bevel gear 55 through the connecting rod. The No. 5 bevel gear 55 drives the driven rod 56 to rotate, so that the screw bodies at both ends rotate, and the screw bodies are threadedly connected to the clamping plate 57, so that the clamping plate 57 clamps and fixes the bottom plate 2;

[0095] The screw bodies at both ends of the driven rod 56 have opposite thread directions and are arranged to rotate within a limiting frame. When the driven rod 56 rotates, the clamping plates 57 on the outside of the two screw bodies will move toward or away from each other within the limiting frame. The clamping plates 57 have rubber pads on the sides, which can tightly clamp the base plate 2 when moved to the appropriate position, thereby increasing friction and preventing the wooden frame a2 from shifting during the repair process, ensuring smooth repair work.

[0096] After the bottom plate 2 is positioned by the clamping plate 57, it is placed inside the foundation pit a5 of the foundation a4 and the wooden frame a2. After the bottom plate 2 is placed by the frame body 2, it is in a horizontal state with the foundation pit a5. When the L plate 3 is locked to the wooden frame through the support screw 1, the bottom plate 2 and the vertical adjustment frame 13 are adjusted to apply pressure to the foundation pit a5 below the bottom plate 2 to make it flat. This is conducive to the pressure of the bottom plate 2 to flatten the pit soil in the foundation pit a5, so that the bottom plate 2 has a balanced force support on the support screw 1.

[0097] After the supporting positioning structure is supported by the wooden frame a2 through the frame body 2 inside the foundation pit a5, the frame body 2 is separated from the foundation pit a5, and the filling agent can be poured into the foundation a4 and the foundation pit a5 of the wooden frame a2 to complete the insulation layer filling process of the door frame repair ground.

[0098] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative work should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention are implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. An adjustable support device for door frame repair, comprising: A frame body 1 for bearing the weight of the wooden frame when repairing the door frame, the frame body 1 comprising a support screw (1), a bottom plate (2) and an L-plate (3), the bottom plate (2) being used for being placed on the foundation surface of the foundation pit and being located below the wooden frame; The feature is that a nut (4) for clamping the L-plate (3) is threadedly connected to the support screw (1); A locking ring (6) is rotatably provided in the base plate (2), and the locking ring (6) can be fixed relative to the base plate (2) through a locking unit. An inner shaft cylinder (5) for receiving the bottom of the support screw (1) is fixed in the locking ring (6); Also included is a frame body 2 for aligning and assembling the frame body 1; The second frame includes a lifting component for positioning and height-adjusting the L-plate (3) and a positioning component for clamping and positioning the bottom plate (2); The positioning assembly includes a transmission chassis (46), an adjusting screw (47) is rotatably provided inside the transmission chassis (46), a first helical gear (48) is fixedly mounted on the outer wall of one end of the adjusting screw (47), and the first helical gear (48) can be meshed with a third helical gear (50); A transmission inner rod (49) is fixedly provided at the center of the third helical gear (50), and a transmission square rod (51) is provided on the outer sliding sleeve of the transmission inner rod (49), and one end of the transmission square rod (51) is connected to a servo motor 2 (52) fixedly mounted on the inner side of the transmission base frame (46), and a horizontal axis frame is rotatably mounted on the third helical gear (50), and an electric telescopic rod (53) is installed between the horizontal axis frame and the transmission base frame (46); The end of the transmission inner rod (49) away from the transmission square rod (51) is movably provided with a connecting rod, and the end of the connecting rod away from the transmission square rod (51) is integrally fixed with a fourth helical gear (54), the fourth helical gear (54) is meshed with a fifth helical gear (55), and the fifth helical gear (55) is fixedly assembled with a driven rod (56), and both ends of the driven rod (56) are fixedly assembled with screw bodies with opposite thread directions. Both ends of the front side of the transmission base frame (46) are integrally fixed with a limiting frame, the screw body is rotatably arranged inside the limiting frame, and the outer side of the screw body is threadedly connected to a clamping plate (57) movably located inside the limiting frame, and a rubber pad for anti-slip contact with the bottom plate (2) is provided on the side of the clamping plate (57).

2. The adjustable support device for door frame repair according to claim 1, characterized in that: The lifting assembly includes a lifting frame (24) for positioning the L-plate (3), and the interior of the lifting frame (24) is hollowed out, and a driving screw barrel (25) is rotatably provided inside the lifting frame (24), the bottom of the driving screw barrel (25) rotates and penetrates the outside of the lifting frame (24), and a worm gear (26) is fixedly mounted on the outer wall; The lifting frame (24) is equipped with a magnet plate (9) for magnetically positioning the L-plate (3); The inner side of the driving screw barrel (25) is threadedly connected to a positioning screw (23), and the outer side of the positioning screw (23) is provided with a vertical moving frame (22).

3. The adjustable support device for door frame repair according to claim 2, characterized in that: The lifting assembly is provided with a transmission assembly for providing power; The transmission assembly includes a worm (27) meshed with a worm wheel (26), and an inner square rod (28) is movably provided on the inner side of the worm (27), and a worm wheel (29) is fixedly mounted on one end of the inner square rod (28), and the worm wheel (29) is meshed with a worm (30), and the bottom end of the worm (30) is connected to a servo motor (31), and a side plate is fixedly mounted on the side of the servo motor (31), and an electric cylinder (33) is mounted between the side plate and the lifting frame (24); An inner square groove is provided on the inner side of the worm gear (27), and the inner square rod (28) is slidably inserted into the inner side of the inner square groove.

4. The adjustable support device for door frame repair according to claim 3, characterized in that: The L-plate (3) is provided with a synchronous nut (8) for rotation corresponding to the axis of the inner shaft cylinder (5).

5. The adjustable support device for door frame repair according to claim 4, characterized in that: Also included is a rotating assembly for actively applying force to the synchronous nut (8); The rotating assembly includes a synchronous belt (34) rotatably arranged in a hollow portion of the lifting frame (24); The top end of the worm gear (30) is fixedly equipped with a synchronous wheel (32), and the synchronous belt (34) and the synchronous wheel (32) are meshed. The synchronous belt (34) is in a disconnected state, and a female head (35) is integrally fixed to one end of the synchronous belt (34), and a male head (37) is integrally fixed to the other end of the synchronous belt (34); Tension holes (36) are provided on the concave surfaces at both ends of the female head (35), and two tension latches (38) are provided on the male head (37) in a vertically sliding manner at positions corresponding to the tension holes (36); Two groups of tension adjustment cylinders (39) are provided between the two tension bayonets (38), and tension springs (40) are installed between the two groups of tension adjustment cylinders (39) and the two tension bayonets (38); The tension spring (40) is used to adjust the tensioning force of the tension latch (38), and a bidirectional screw (42) is threadedly connected between the two groups of tension adjustment cylinders (39), and the middle part of the bidirectional screw (42) is rotatably equipped with a positioning shaft housing (41) fixedly arranged on the inner side of the male head (37); A worm gear three (43) is fixedly provided on the outer wall of the middle portion of the bidirectional screw (42), and the worm gear three (43) is engaged with a worm gear three (44) rotatably provided on the inner side of the positioning shaft housing (41). One end of the worm gear three (44) is rotatably located outside the male head (37) and is provided with an inner hexagonal slot (45) for applying force to rotate with an external inner hexagonal wrench.

6. The adjustable support device for door frame repair according to claim 5, characterized in that: The locking unit includes a clamping groove (7) formed on the inner wall of the base plate (2); A clamping rod (20) is movably provided inside the clamping groove (7), and a horizontal screw (19) is threadedly connected to the inside of the clamping rod (20), and a prismatic rod (15) is meshedly provided on the outside of one end of the horizontal screw (19).

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