Anchor cable tensioning supercharging device

Abstract

The utility model discloses an anchor cable tensioning and pressurizing device. The device structure is obviously optimized through integrated design. The device comprises a low-pressure valve block, a high-pressure valve block, a reversing valve, a throttling valve, a pressure reducing valve, a supercharger, a high-low-pressure quick connector and other assemblies, and is compact in overall structure, small in size, light in weight and convenient to carry to an operation site. Functionally, after being subjected to pressure regulation through the pressure reducing valve and speed regulation through the throttling valve, low-pressure oil is efficiently pressurized through the pressurizer and finally output to the tensioning oil cylinder through the high-pressure quick connector, quick pressurization is achieved, and operation efficiency is improved. The device effectively solves the problems that existing equipment is heavy and inconvenient to carry, a convenient and efficient solution is provided for anchor cable tensioning operation, and practicability and safety are both achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anchor cable, especially to a kind of anchor cable tensioning pressurizing device. BACKGROUND

[0002] In slope reinforcement, tunnel support and other engineering, anchor cable is fixed in stable area by prestressed steel strand to rock or soil, which is the key component to improve structural stability. In the process of anchor cable tensioning, high-pressure oil source is needed to drive tensioning cylinder to realize prestress application. However, the traditional anchor cable tensioning pressurizing device usually integrates oil tank, oil pump, valve group and other components, resulting in large overall volume and heavy weight. It needs multiple people to cooperate to carry to the operation surface, which reduces the construction efficiency. SUMMARY

[0003] The utility model aims at providing a kind of anchor cable tensioning pressurizing device to solve the technical problem that traditional anchor cable tensioning pressurizing integrated device is not convenient for worker to carry due to large volume and heavy weight.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing an anchor cable tensioning pressurizing device, which comprises:

[0005] Sheet metal shell;

[0006] Low-pressure valve block, the low-pressure valve block is arranged on one side of the sheet metal shell;

[0007] Low-pressure quick connector, the low-pressure quick connector is arranged on the input end of the low-pressure valve block;

[0008] Pressure reducing valve and throttle valve, the pressure reducing valve and the throttle valve are arranged on the low-pressure valve block in the order of fluid flow;

[0009] High-pressure valve block, the high-pressure valve block is arranged on the other side of the sheet metal shell, and the input end of the high-pressure valve block is connected with the output end of the low-pressure valve block;

[0010] Pressure booster, the pressure booster is arranged on the high-pressure valve block;

[0011] High-pressure quick connector, the high-pressure quick connector is arranged on the output end of the high-pressure valve block.

[0012] In one embodiment, it further comprises a reversing valve, which is arranged on the low-pressure valve block.

[0013] In one embodiment, it further comprises a low-pressure pressure gauge and a high-pressure pressure gauge, the low-pressure pressure gauge is arranged on the input end of the pressure booster, and the high-pressure pressure gauge is arranged on the output end of the pressure booster.

[0014] In one embodiment, a handle is further included and arranged on the sheet metal shell.

[0015] In one embodiment, the booster adopts a double-acting piston structure, and oil pressurization is realized by reciprocating movement of the piston.

[0016] In one embodiment, an oil filtering device is further included and arranged between the low-pressure quick connector and the pressure reducing valve.

[0017] The one or more technical solutions in the above embodiments of the utility model have at least the following technical effects or advantages:

[0018] The anchor cable tensioning and pressurizing device provided by the embodiments of the utility model adopts modular valve group design, integrates low-pressure valve blocks, high-pressure valve blocks, boosters and the like in the sheet metal shell, so that the overall weight is reduced, the volume is reduced, and the device can be carried to the work surface by a single person, and the construction flexibility is greatly improved. The integrated pressure reducing valve, throttle valve and reversing valve realize rapid switching of the oil circuit through the high-low pressure quick connector. The sheet metal shell not only protects the internal components, but also is provided with high and low pressure gauges, facilitating real-time observation of the pressure state; the handle design on the shell further reduces the carrying difficulty and improves the operation convenience. The pressure reducing valve and the throttle valve are connected in series, which can adjust the input oil pressure according to the demand and control the oil flow rate, ensuring the stability and safety of the pressure output; the high and low pressure gauges are double monitored, facilitating the operator to accurately master the system pressure state and avoiding the risk of overload or insufficient pressure. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Fig. 1 The structure schematic diagram of the anchor cable tensioning and pressurizing device provided by the embodiments of the utility model is shown in the figure.

[0021] Fig. 2 The structure schematic diagram of the anchor cable tensioning and pressurizing device provided by the embodiments of the utility model is shown in the figure.

[0022] In the drawings, the reference signs are as follows:

[0023] 1, low-pressure valve block; 2, high-pressure valve block; 3, pressure reducing valve; 4, throttle valve; 5, reversing valve; 6, low-pressure quick connector; 7, sheet metal shell; 8, booster; 9, handle; 10, low-pressure pressure gauge; 11, high-pressure pressure gauge; 12, high-pressure quick connector. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0025] In the description of the present application, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0026] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0027] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Please refer to Figs. 1-2 The embodiment of the present application provides an anchor cable tensioning pressure increasing device, which comprises a sheet metal shell, a low pressure valve block, a low pressure quick connector, a pressure reducing valve, a throttle valve, a high pressure valve block, a pressure booster and a high pressure quick connector. The low pressure valve block is arranged on one side of the sheet metal shell; the low pressure quick connector is arranged on the input end of the low pressure valve block; the pressure reducing valve and the throttle valve are arranged on the low pressure valve block in the order of fluid flow; the high pressure valve block is arranged on the other side of the sheet metal shell, and the input end of the high pressure valve block is in communication with the output end of the low pressure valve block; the pressure booster is arranged on the high pressure valve block; and the high pressure quick connector is arranged on the output end of the high pressure valve block.

[0029] The low-pressure oil source enters the low-pressure valve block through a low-pressure quick connector, is adjusted to a proper pressure by a pressure reducing valve, and then the oil flow rate is controlled by a throttle valve. After the oil enters the pressure booster, the pressure is increased by reciprocating movement of the piston inside the pressure booster (the pressure increase ratio is determined by the piston area ratio), and finally the high-pressure oil is output to the tensioning oil cylinder through a high-pressure quick connector to complete the tensioning of the anchor cable, and then the low-pressure valve block, the high-pressure valve block and the pressure booster are integrated to realize rapid pressure increase and high-pressure output, thereby meeting the tensioning requirement of the anchor cable.

[0030] In one embodiment, a reversing valve is further included, which is arranged on the low-pressure valve block. Specifically, the reversing valve can change the oil flow direction by controlling the position of the valve core through electromagnetism or manually. When the valve core is switched to the tensioning position, the high-pressure oil output by the pressure booster drives the tensioning oil cylinder to contract; when the valve core is switched to the loosening position, the oil cylinder is depressurized and the anchor cable is retracted.

[0031] In one embodiment, a low-pressure pressure gauge and a high-pressure pressure gauge are further included, the low-pressure pressure gauge is arranged at the input end of the pressure booster, and the high-pressure pressure gauge is arranged at the output end of the pressure booster. The pressure gauges convert the pressure signal into a pointer deflection or an electronic signal by sensing the oil pressure change through elastic elements (such as bellows). The operator adjusts the parameters of the pressure reducing valve and the throttle valve according to the pressure gauge reading to avoid overpressure or underpressure, which may cause damage to the equipment or insufficient tensioning.

[0032] In one embodiment, a handle is further included, which is arranged on the sheet metal shell. The handle is designed to facilitate carrying and operation, thereby improving the portability of the device. Specifically, the handle is connected to the sheet metal shell by welding or bolts to ensure the structural strength and facilitate single-person carrying to the operation surface.

[0033] In one embodiment, the pressure booster adopts a double-acting piston structure to realize oil pressure increase by reciprocating movement of the piston. The double-acting piston pressure booster improves the pressure increase efficiency and stabilizes the output pressure. Moreover, the pressure increase ratio can be changed by adjusting the piston diameter or stroke to adapt to different tensioning requirements of the anchor cable.

[0034] In one embodiment, an oil filtering device is further included, which is arranged between the low-pressure quick connector and the pressure reducing valve. Specifically, the filtering device is internally provided with a high-precision filter screen (10 μm aperture) to intercept impurity particles in the oil. The impurities are intercepted in the low-pressure oil circuit to prevent them from entering the pressure booster and the high-pressure valve block, thereby reducing the element wear. In turn, the hydraulic elements are protected and the service life is prolonged.

[0035] The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cable tensioning pressurizing device, characterized by, The anchor cable tensioning and pressure increasing device comprises: a sheet metal shell; a low-pressure valve block arranged on one side of the sheet metal shell; a low-pressure quick connector arranged on the input end of the low-pressure valve block; a pressure reducing valve and a throttle valve arranged on the low-pressure valve block in the order of fluid flow; a high-pressure valve block arranged on the other side of the sheet metal shell, the input end of the high-pressure valve block being in communication with the output end of the low-pressure valve block; a pressure booster arranged on the high-pressure valve block; and a high-pressure quick connector arranged on the output end of the high-pressure valve block.

2. The anchor cable tensioning and pressure increasing device according to claim 1, further comprising a reversing valve arranged on the low-pressure valve block.

3. The anchor cable tensioning and pressure increasing device according to claim 1, further comprising a low-pressure pressure gauge arranged on the input end of the pressure booster and a high-pressure pressure gauge arranged on the output end of the pressure booster.

4. The anchor cable tensioning and pressure increasing device according to claim 1, further comprising a handle arranged on the sheet metal shell.

5. The anchor cable tensioning and pressure increasing device according to claim 1, wherein the pressure booster adopts a double-acting piston structure, and oil liquid is pressurized through reciprocating movement of the piston.

6. The anchor cable tensioning and pressure increasing device according to claim 1, further comprising an oil liquid filtering device arranged between the low-pressure quick connector and the pressure reducing valve. ​ ​ ​ ​ ​

Images