Device for forming axial pressure by vertically and axially applying acting force

Abstract

The utility model relates to a device for forming axial pressure by vertically and axially applying acting force, which comprises a middle support rod, two ends of the middle support rod are axially connected with end telescopic rods in a sliding manner, and a core lifting device is mounted between the end telescopic rods and the middle support rod. The core lifting device comprises a front pressing plate connected with the end telescopic rods and a rear pressing plate connected with the middle supporting rod, a first plate shaft and a second plate shaft which are arranged in the radial direction of the middle supporting rod are arranged between the front pressing plate and the rear pressing plate, and a fastening bolt is connected between the first plate shaft and the second plate shaft. The first plate shaft is hinged to the front pressing plate through a first front connecting rod, the first plate shaft is hinged to the rear pressing plate through a first rear connecting rod, the second plate shaft is hinged to the front pressing plate through a second front connecting rod, and the second plate shaft is hinged to the rear pressing plate through a second rear connecting rod. The device is suitable for jacking the structure, does not need an expansion bolt, and reduces the damage to the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft fixing, in particular to a device which forms axial pressure by applying a force vertical to the axial direction. Background Art

[0002] The fixation of traditional light steel keels requires drilling holes in the structural surface to install expansion bolts. Some holes can penetrate 8-10cm into the structure, forming a water vapor path that passes through the steel bar protective layer, thereby accelerating the corrosion of the internal steel bars, and eventually causing the expansion and growth of internal concrete cracks due to volume expansion, thereby causing the component to lose its bearing capacity. In addition, during the drilling process, the impact and vibration of the electric machinery will cause the formation and growth of cracks around the holes, thereby aggravating the damage to the structure.

[0003] The punch-free clothes drying rod is fixed by friction at both ends, and has been proven to have a high load-bearing capacity in practice. However, from the perspective of resisting the deflection of the rod in the direction perpendicular to the central axis, the circular cross section is obviously not as economical as the rectangular cross section.

[0004] The frictional pressure at the end of the non-punching clothes drying rod comes from the elongation and deformation of the rod caused by the reverse twisting of the circular sleeve along the internal matching thread. After changing to a rectangular cross-section, this sleeve twisting can no longer be used to achieve the rod end pressure. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a device for forming axial pressure by applying a vertical axial force to replace the traditional expansion bolt connection method, thereby reducing damage to the structure caused by component installation and realizing axial telescopic deformation and fixed disassembly of a rectangular sleeve.

[0006] The utility model is realized through the following technical scheme, providing a device for forming axial pressure by applying a vertical axial force, including an intermediate support rod, at least one end of the intermediate support rod is axially slidably connected with an end telescopic rod, a core lifting device is installed between the end telescopic rod and the intermediate support rod, the core lifting device includes a front pressure plate connected to the end telescopic rod and a rear pressure plate connected to the intermediate support rod, a first plate shaft and a second plate shaft arranged radially along the intermediate support rod are provided between the front pressure plate and the rear pressure plate, a fastening bolt is connected between the first plate shaft and the second plate shaft, the first plate shaft is hinged to the front pressure plate through a first front connecting rod, the first plate shaft is hinged to the rear pressure plate through a first rear connecting rod, the second plate shaft is hinged to the front pressure plate through a second front connecting rod, and the second plate shaft is hinged to the rear pressure plate through a second rear connecting rod.

[0007] The end telescopic rod in this solution can slide relative to the middle support rod to realize the telescopic operation, and the core lifting device between the end telescopic rod and the middle support rod can realize the outward push of the end telescopic rod to form axial pressure. When the core lifting device is used, by rotating the fastening bolt, the distance between the first plate axis and the second plate axis becomes smaller, so that the distance between the front pressure plate and the rear pressure plate is increased through the action of the first front connecting rod, the first rear connecting rod, the second front connecting rod and the second rear connecting rod, and the end telescopic rod is applied with an outward thrust.

[0008] As an optimization, two of each of the first front link, the first rear link, the second front link, and the second rear link are provided. In this solution, two of each link are provided, thereby making the entire structure more stable.

[0009] As an optimization, the fastening bolt passes through the first plate shaft and is threadedly connected with the second plate shaft, so that the first plate shaft and the second plate shaft can be shortened by rotating the fastening bolt.

[0010] As an optimization, the first front link, the first rear link, the second front link and the second rear link are arranged in a diamond shape, so that when the distance between the first plate axis and the second plate axis becomes smaller, the distance between the front pressure plate and the rear pressure plate increases.

[0011] As an optimization, both ends of the middle support rod are axially slidably connected with end telescopic rods, so as to achieve the tightening of the two ends and make the on-site use more flexible.

[0012] As an optimization, the middle support rod and the end telescopic rod are both rectangular hollow tubes, and the core lifting device is arranged in the cavity of the middle support rod and the end telescopic rod, so as to accommodate the core lifting device and make the appearance structure neater.

[0013] As an optimization, the end telescopic rod is inserted into the middle support rod, thereby realizing axial sliding connection between the two.

[0014] As an optimization, a support rod top plate that fits the rear pressure plate is fixedly connected in the middle support rod, and a telescopic rod top plate that fits the front pressure plate is fixedly connected in the end telescopic rod. The support rod top plate and the telescopic rod top plate convert the thrust of the core lifting device to the middle support rod and the end telescopic rod.

[0015] As an optimization, the cross-section of the middle support rod and the cross-section of the end telescopic rod are both C-shaped, and the bolt head of the fastening bolt is located in the C-shaped notch. The C-shaped notch in this solution is used to avoid the bolt head, thereby facilitating the rotation of the bolt.

[0016] The beneficial effects of the utility model are as follows: the utility model is a device that forms axial pressure by applying a force in a vertical axial direction. By rotating the fastening bolts, the distance between the first plate axis and the second plate axis becomes smaller, thereby increasing the distance between the front pressure plate and the rear pressure plate through the action of the first front link, the first rear link, the second front link and the second rear link, and applying an outward thrust to the end telescopic rod. Therefore, axial telescopic expansion and contraction can be achieved through operations in the vertical axial direction. It is suitable for tightening the structure, does not require expansion bolts, and reduces damage to the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is an exploded view of the utility model;

[0019] Figure 3 It is an exploded view of the end telescopic rod and the core lifting device of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the core lifting device of the utility model;

[0021] Figure 5 This is an exploded view of the core lifting device of the utility model;

[0022] As shown in the figure:

[0023] 1. Middle support rod, 2. End telescopic rod, 3. Core lifting device, 11. Support rod top plate, 21. Telescopic rod top plate, 31. Front pressure plate, 32. Rear pressure plate, 33. First plate shaft, 34. Second plate shaft, 35. Fastening bolts, 36. First front connecting rod, 37. Second front connecting rod, 38. First rear connecting rod, 39. Second rear connecting rod. DETAILED DESCRIPTION

[0024] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0025] like Figures 1 to 5 As shown, the utility model is a device for forming axial pressure by applying a vertical axial force, comprising an intermediate support rod 1, at least one end of which is axially slidably connected to an end telescopic rod 2. In this embodiment, both ends of the intermediate support rod 1 are axially slidably connected to the end telescopic rod 2.

[0026] The middle support rod 1 and the end telescopic rod 2 are both rectangular hollow tubes, and the end telescopic rod 2 is inserted into the middle support rod 1 to achieve axial sliding connection between the two.

[0027] A core lifting device 3 is installed between the end telescopic rod 2 and the middle support rod 1 , and the core lifting device 3 is arranged in the cavity of the middle support rod 1 and the end telescopic rod 2 .

[0028] The core lifting device 3 includes a front pressing plate 31 connected to the end telescopic rod 2 and a rear pressing plate 32 connected to the middle support rod 1. The middle support rod 1 is fixed with a support rod top plate 11 that fits with the rear pressing plate 32, and the end telescopic rod 2 is fixed with a telescopic rod top plate 21 that fits with the front pressing plate 31. Therefore, after the distance between the front pressing plate 31 and the rear pressing plate 32 is increased, the end telescopic rod 2 is pushed outward by respectively pressing against the support rod top plate 11 and the telescopic rod top plate 21.

[0029] A first plate axis 33 and a second plate axis 34 are provided between the front pressure plate 31 and the rear pressure plate 32 and are arranged radially along the middle support rod 1. The first plate axis 33 and the second plate axis 34 are both structures with a square middle section and a circular cross-section at both ends. The first plate axis 33 and the second plate axis 34 are arranged in parallel and perpendicular to the axial direction of the middle support rod 1.

[0030] A fastening bolt 35 is connected between the first plate shaft 33 and the second plate shaft 34. The fastening bolt 35 passes through the first plate shaft 33 and is threadedly connected to the second plate shaft 34. Thus, when the fastening bolt 35 is tightened, the distance between the first plate shaft 33 and the second plate shaft 34 can be reduced.

[0031] In this embodiment, the cross-sections of the intermediate support rod 1 and the end telescopic rod 2 are both C-shaped, and the bolt head of the fastening bolt 35 is located in the C-shaped notch, so that the bolt head is easy to operate.

[0032] The first plate shaft 33 is hinged to the front pressure plate 31 through the first front link 36, the first plate shaft 33 is hinged to the rear pressure plate 32 through the first rear link 38, the second plate shaft 34 is hinged to the front pressure plate 31 through the second front link 37, and the second plate shaft 34 is hinged to the rear pressure plate 32 through the second rear link 39. The first front link 36, the first rear link 38, the second front link 37 and the second rear link 39 are arranged in a diamond shape. Two of each of the first front link 36, the first rear link 38, the second front link 37 and the second rear link 39 are provided.

[0033] Specifically, one end of the two first front connecting rods 36 is respectively sleeved on the circular shafts at both ends of the first plate shaft 33 to achieve hinge connection, and the other ends of the two first front connecting rods 36 are respectively hinged to the ear plates of the front pressure plate 31 .

[0034] One ends of the two first rear connecting rods 38 are respectively sleeved on the circular shafts at both ends of the first plate shaft 33 to achieve hinge connection, and the other ends of the two first rear connecting rods 38 are respectively hinged to the ear plates of the rear pressure plate 32.

[0035] One ends of the two second front connecting rods 37 are respectively sleeved on the circular shafts at both ends of the second plate shaft 34 to achieve hinge connection, and the other ends of the two second front connecting rods 37 are respectively hinged to the ear plates of the front pressure plate 31 .

[0036] One ends of the two second rear connecting rods 39 are respectively sleeved on the circular shafts at both ends of the second plate shaft 34 to achieve hinge connection, and the other ends of the two second rear connecting rods 39 are respectively hinged to the ear plates of the rear pressure plate 32.

[0037] The use of the utility model:

[0038] The end telescopic rod 2 in the present application can slide relative to the middle support rod 1 to achieve telescopic operation, and the core lifting device 3 between the end telescopic rod 2 and the middle support rod 1 can push the end telescopic rod 2 outward to form axial pressure.

[0039] When the core lifting device 3 is in use, the distance between the first plate axis 33 and the second plate axis 34 is reduced by rotating the fastening bolt 35, thereby increasing the distance between the front pressure plate 31 and the rear pressure plate 32 through the action of the first front link 36, the first rear link 38, the second front link 37 and the second rear link 39, thereby applying an outward thrust to the end telescopic rod 2.

[0040] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A device for forming axial pressure by applying a force in a vertical axial direction, characterized in that: The invention comprises an intermediate support rod (1), at least one end of which is axially slidably connected to an end telescopic rod (2), a core lifting device (3) is arranged between the end telescopic rod (2) and the intermediate support rod (1), the core lifting device (3) comprises a front pressing plate (31) connected to the end telescopic rod (2) and a rear pressing plate (32) connected to the intermediate support rod (1), a first plate arranged radially along the intermediate support rod (1) is arranged between the front pressing plate (31) and the rear pressing plate (32). The first plate shaft (33) and the second plate shaft (34) are connected with a fastening bolt (35). The first plate shaft (33) and the second plate shaft (34) are hingedly connected to the front pressure plate (31) through a first front connecting rod (36). The first plate shaft (33) is hingedly connected to the rear pressure plate (32) through a first rear connecting rod (38). The second plate shaft (34) is hingedly connected to the front pressure plate (31) through a second front connecting rod (37). The second plate shaft (34) is hingedly connected to the rear pressure plate (32) through a second rear connecting rod (39).

2. A device for forming axial pressure by applying a force perpendicular to the axial direction according to claim 1, characterized in that: Two of each of the first front connecting rod (36), the first rear connecting rod (38), the second front connecting rod (37) and the second rear connecting rod (39) are provided.

3. The device for forming axial pressure by applying a force perpendicular to the axial direction according to claim 1, characterized in that: The fastening bolt (35) passes through the first plate shaft (33) and is threadedly connected to the second plate shaft (34).

4. The device for forming axial pressure by applying a force perpendicular to the axial direction according to claim 1, characterized in that: The first front connecting rod (36), the first rear connecting rod (38), the second front connecting rod (37) and the second rear connecting rod (39) are arranged in a diamond shape.

5. The device for forming axial pressure by applying a force perpendicular to the axial direction according to claim 1, characterized in that: Both ends of the middle support rod (1) are axially slidably connected with end telescopic rods (2).

6. A device for forming axial pressure by applying a force perpendicular to the axial direction according to any one of claims 1 to 5, characterized in that: The middle support rod (1) and the end telescopic rod (2) are both rectangular hollow tubes, and the core lifting device (3) is arranged in the cavities of the middle support rod (1) and the end telescopic rod (2).

7. The device for forming axial pressure by applying a force perpendicular to the axial direction according to claim 6, characterized in that: The end telescopic rod (2) is inserted into the middle support rod (1).

8. The device for forming axial pressure by applying a force perpendicular to the axial direction according to claim 6, characterized in that: A support rod top plate (11) that fits the rear pressure plate (32) is fixedly connected inside the middle support rod (1), and a telescopic rod top plate (21) that fits the front pressure plate (31) is fixedly connected inside the end telescopic rod (2).

9. The device for forming axial pressure by applying a force perpendicular to the axial direction according to claim 6, characterized in that: The cross-sections of the middle support rod (1) and the end telescopic rod (2) are both C-shaped, and the bolt heads of the fastening bolts (35) are located in the C-shaped notches.

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