Device for adjusting flatness of assembled finished steel trestle

Abstract

The utility model discloses a device for adjusting the flatness of an assembled finished steel trestle, which comprises a steel trestle plate and a jack for jacking the steel trestle plate, the jack is in oily connection with a manual hydraulic pump, the manual hydraulic pump comprises an oil storage cylinder, one end of the oil storage cylinder is connected with a hydraulic oil pipe through a pump head, and the other end of the oil storage cylinder is connected with a hydraulic oil pipe. The hydraulic oil pipe is fixedly connected with the jack, a high-pressure one-way valve, a high-pressure safety valve and an oil return switch are arranged on one side of the oil storage cylinder, a hydraulic pump handle is connected to the upper portion of the oil storage cylinder, and an elastic rubber ring is further arranged on the upper portion of the oil storage cylinder. And large noise is generated in the running process of the vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit construction, in particular to a device for adjusting the flatness of an assembled finished steel trestle. Background Art

[0002] With the emergence of more and more complex deep foundation pit support forms in the process of engineering foundation pit construction, various hidden dangers have also come along. Among them, the use of prefabricated finished steel trestle boards solves the problems of long construction period and high cost investment of concrete trestle boards. During the laying process of the steel trestle boards, the laid concrete support beam base will be uneven, which will cause the steel trestle boards to warp, affecting the passage of vehicles in the later period, and causing certain noise due to shaking. The traditional method is to place templates and rubber pads and other objects at the bottom of the trestle board, but this method will deform after being exposed to wind and rain. During the adjustment process, the trestle board is in a hoisting state and cannot be adjusted in place at one time. In addition, personnel are faced with many safety hazards when adjusting in a hoisting state. Therefore, in order to ensure that the flatness of the trestle board after hoisting is formed in one time, it is necessary to set a flatness adjustment device in the steel trestle board. Utility Model Content

[0003] The utility model aims to address the deficiencies in the prior art and provides a device for adjusting the flatness of an assembled finished steel trestle, comprising a steel trestle plate and a jack for lifting the steel trestle plate, the jack being oilily connected to a manual hydraulic pump, the manual hydraulic pump comprising an oil storage cylinder, one end of the oil storage cylinder being connected to a hydraulic oil pipe through a pump head, the hydraulic oil pipe being fixedly connected to the jack, a high-pressure one-way valve, a high-pressure safety valve and an oil return switch being provided on one side of the oil storage cylinder, a hydraulic pump handle being connected to the top of the oil storage cylinder, and an elastic rubber ring being provided on the top of the oil storage cylinder.

[0004] Preferably, four reserved holes are arranged on the surface of the steel trestle plate, and detachable inspection ports and oil filling holes are arranged on the outside of the holes for use in jack maintenance and top pressure.

[0005] Preferably, 1 cm thick steel plates are welded on both sides of the reserved holes, and the steel plates are fixed to the surface of the steel trestle plates by welding, and the welding meets the requirements of the third-level weld.

[0006] Preferably, the jack is provided with a quick connector, and the hydraulic oil pipe is fixedly connected to the jack via the quick connector.

[0007] Preferably, the quick connector is provided with a connector cover for preventing dust from entering.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model supports the trestle board by using a jack instead of objects such as templates and rubber pads, thereby preventing the templates and rubber pads from being deformed after being exposed to wind and rain. During the laying process of the steel trestle board for foundation pit support construction, the flatness of the steel trestle board is adjusted to avoid unevenness, which causes loud noise during vehicle driving, and at the same time reduces safety hazards during personnel operation, ensuring that the flatness of the steel trestle board is formed in one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0010] Figure 1 This is a side schematic diagram of the manual hydraulic pump of the utility model;

[0011] Figure 2 It is a top view of the manual hydraulic pump;

[0012] Figure 3 It is a side view of the jack;

[0013] Figure 4 Layout diagram for the jack;

[0014] Figure 5 Reserve opening node diagram for steel trestle.

[0015] In the figure: 1. Pump head; 2. Hydraulic oil pipe; 3. High-pressure check valve; 4. High-pressure safety valve; 5. Oil return switch; 6. Hydraulic pump handle; 7. Oil storage cylinder; 8. Elastic rubber ring; 9. Jack; 10. Quick connector; 11. Removable inspection port; 12. Oil filling hole; 13. Steel plate. DETAILED DESCRIPTION

[0016] The technical solution of the utility model is described in detail below with reference to the accompanying drawings, but the protection scope of the utility model is not limited to the embodiments.

[0017] Reference Figures 1 to 5The utility model discloses a device for adjusting the flatness of an assembled finished steel trestle, comprising a steel trestle board and a jack 9 for lifting the steel trestle board. The jack 9 is used to support the trestle board instead of objects such as templates and rubber pads, so as to avoid deformation of the templates and rubber pads after being exposed to wind and rain. During the laying process of the steel trestle board in the foundation pit support construction, the flatness of the steel trestle board is adjusted to avoid unevenness, which causes large noise during vehicle driving and reduces safety hazards during personnel operation, so as to ensure that the flatness of the steel trestle board is formed in one step. The jack 9 is oil-connected to the manual hydraulic pump, and the manual hydraulic pump is used to lift the jack 9. Oil supply ensures the working stability of the jack 9. The manual hydraulic pump includes an oil storage cylinder 7. One end of the oil storage cylinder 7 is connected to a hydraulic oil pipe 2 through a pump head 1. The hydraulic oil pipe 2 is fixedly connected to the jack 9. One side of the oil storage cylinder 7 is provided with a high-pressure one-way valve 3, a high-pressure safety valve 4 and an oil return switch 5. A hydraulic pump handle 6 is connected to the top of the oil storage cylinder 7. An elastic rubber ring 8 is also provided above the oil storage cylinder 7. The oil is pumped out by opening the high-pressure one-way valve 3 and pressing the hydraulic pump handle 6. The high-pressure safety valve 4 ensures the safety of the oil circuit. The elastic rubber ring 8 is used to seal the oil storage cylinder 7 to prevent the oil from flowing out. Of course, the oil storage cylinder 7 can also be refueled by pulling out the elastic rubber ring 8.

[0018] The working process of the utility model is as follows:

[0019] 1. First, select the appropriate jack 9, hydraulic hand pump, and hydraulic oil pipe 2 according to the weight of the steel trestle plate and the live load of the engineering vehicle;

[0020] 2. Then, four reserved holes are set in the process of manufacturing the assembled finished steel trestle plate, and a detachable inspection port 11 and an oil filling hole 12 are set on the outside of the holes for maintenance and top pressure of the jack 9;

[0021] 3. Then, 1 cm thick steel plates 13 are welded on both sides of the reserved holes to prevent the high-strength steel jack 9 from tilting. The welding meets the requirements of the third-level weld and anti-rust paint is applied to the weld.

[0022] 4. Connect the high-strength steel jack 9 to the quick connector 10 on the jack, and cover the joint with the connector cover, which can prevent dust from entering;

[0023] 5. Then place the assembled jack 9 in the reserved hole of the steel trestle plate, and ensure that the jack 9 can operate independently;

[0024] 6. Connect the pump head 1 of the manual hydraulic pump to the hydraulic oil pipe 2;

[0025] 7. After the on-site steel trestle board is hoisted, open the quick connector cover and thread the hydraulic oil pipe 2 to the quick connector 10 of the jack 9;

[0026] 8. Finally, tighten the oil return switch 5 on the manual hydraulic pump, press any uneven position on the steel trestle board, adjust its flatness, and ensure that it does not shake.

[0027] The utility model can adjust the flatness of the steel trestle plate to avoid unevenness which causes large noise during vehicle driving.

[0028] As above, although the utility model has been shown and described with reference to a specific preferred embodiment, it should not be interpreted as limiting the utility model itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the utility model defined in the attached claims.

Claims

1. A device for adjusting the flatness of a prefabricated finished steel trestle, characterized in that: It includes a steel trestle plate and a jack for lifting the steel trestle plate. The jack is oilily connected to a manual hydraulic pump. The manual hydraulic pump includes an oil storage cylinder. One end of the oil storage cylinder is connected to a hydraulic oil pipe through a pump head. The hydraulic oil pipe is fixedly connected to the jack. A high-pressure one-way valve, a high-pressure safety valve and an oil return switch are provided on one side of the oil storage cylinder. A hydraulic pump handle is connected to the top of the oil storage cylinder. An elastic rubber ring is also provided on the top of the oil storage cylinder.

2. The device for adjusting the flatness of a prefabricated finished steel trestle according to claim 1, characterized in that: The surface of the steel trestle plate is provided with four reserved holes, and the outer sides of the holes are provided with detachable inspection ports and oil filling holes for jack maintenance and top pressure use.

3. The device for adjusting the flatness of a prefabricated finished steel trestle according to claim 2, characterized in that: 1 cm thick steel plates are welded on both sides of the reserved holes, and the steel plates are fixed to the surface of the steel trestle plates by welding, and the welding meets the requirements of the third-level weld.

4. The device for adjusting the flatness of a prefabricated finished steel trestle according to claim 3 is characterized in that: The jack is provided with a quick connector, and the hydraulic oil pipe is fixedly connected to the jack via the quick connector.

5. The device for adjusting the flatness of a prefabricated finished steel trestle according to claim 4, characterized in that: The quick connector is provided with a connector cover for preventing dust from entering.

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