Soil pressure cell fixing device

Abstract

The utility model provides an earth pressure cell fixing device which comprises a bottom box, at least one fixator is coaxially and rotatably installed on the outer circumferential face of the bottom box, an open cavity for containing an earth pressure cell is formed in the upper surface of the bottom box, a fixing cover for fixing the earth pressure cell is detachably and fixedly installed at the open end of the bottom box, and the fixing cover is fixedly installed on the bottom box. A through hole is formed in the fixed cover in a penetrating manner; by means of the overall arrangement, the soil pressure box can be rapidly fixed to the pile steel bar, more convenience and flexibility are achieved, and therefore the installation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure box installation technical field especially relates to a soil pressure box fixing device. BACKGROUND

[0002] With the acceleration of urbanization process and the continuous expansion of infrastructure, complex terrain areas such as mountains and gullies are widely developed and utilized. When construction is carried out in these sites, high fill projects are increasing, such as mountain airport runways, mountain industrial parks, and residential projects in hilly areas. Pile foundation is frequently used in high fill foundation treatment to ensure the stability and bearing capacity of the upper structure. However, the soil around the pile is affected by the weight of the fill and consolidation settlement, which often causes downward displacement relative to the pile body, resulting in negative skin friction on the pile side. Negative skin friction not only increases the axial force of the pile body, but also may cause the pile foundation to settle further, affecting the normal use of the building, and in severe cases, even causing the foundation structure to crack and tilt, threatening the safety and life of the entire project. At present, the engineering community's understanding of negative skin friction on the pile side of high fill is still limited, and it relies mainly on empirical formulas for estimation, which has poor precision and cannot meet the actual needs of complex high fill projects. Therefore, it is urgent to carry out systematic testing and research.

[0003] Among them, the soil pressure box is an indispensable tool in testing and research. The soil pressure box is designed and manufactured based on the vibrating string theory. When the soil stress in the measured structure changes, the sensing plate of the soil pressure box will simultaneously sense the change in stress and produce deformation. This deformation will be transmitted to the vibrating string, converting it into a change in vibrating string stress, thereby changing the vibration frequency of the vibrating string. By exciting the vibrating string with an electromagnetic coil and measuring its vibration frequency, the frequency signal can be transmitted to the reading device through the cable, and then the compressive stress value of the measured structure can be measured.

[0004] In order to ensure the stability of the soil pressure box, it is necessary to fix the soil pressure box on the pile reinforcement. However, due to the structure of the soil pressure box itself, it is not convenient to fix the soil pressure box on the pile reinforcement, and some other components are needed for fixation, which makes the fixation process more complicated and troublesome, affecting the construction efficiency.

[0005] Therefore, it is necessary to invent a soil pressure box fixing device. UTILITY MODEL CONTENTS

[0006] In order to solve the above technical problems, the utility model provides a soil pressure box fixing device, which adopts the technical scheme of: a soil pressure box fixing device, including a bottom box, wherein: at least one coaxial rotating installation is provided on the outer circumferential surface of the bottom box, and a fixing device is provided, an open cavity for placing the soil pressure box is provided on the upper surface of the bottom box, and a fixing cover for fixing the soil pressure box is detachably fixed and installed at the open end of the bottom box, a through hole is provided through the fixing cover, and the diameter of the through hole is smaller than the diameter of the soil pressure box.

[0007] The fixing device comprises a ring sleeve, a supporting arm and a semicircular clamp, the ring sleeve is rotatably sleeved outside the bottom box, an outer circumferential surface of the ring sleeve is fixedly connected with one end of the supporting arm, the other end of the supporting arm is provided with the semicircular clamp, and a clamping hole for connecting with a pile steel bar is formed between the semicircular clamp and the supporting arm.

[0008] A gap is formed on one side of the open cavity of the bottom box, and the gap is used for wire arrangement of the earth pressure cell.

[0009] A ring groove is coaxially formed on the outer circumferential surface of the bottom box, and the ring sleeve is rotatably installed in the ring groove.

[0010] An arc-shaped gap, a limiting cavity and a wire hole are formed on the end of the supporting arm connected with the semicircular clamp, the arc-shaped gap is between the limiting cavity and the wire hole, the arc-shaped gap and the semicircular clamp form a circular hole, the semicircular clamp is slidably connected with the limiting cavity, and a closing gap is arranged at the opening of the limiting cavity.

[0011] A limiting column is fixedly installed at one end of the semicircular clamp, the limiting column is slidably installed in the limiting cavity and the closing gap, a bolt is threadedly installed at the other end of the semicircular clamp, and the bolt is threadedly connected with the wire hole.

[0012] The other end of the limiting column is fixedly installed with an anti-dropping head, the anti-dropping head is slidably installed in the limiting cavity, and the diameter of the anti-dropping head is greater than the inner diameter of the closing gap.

[0013] Compared with the prior art, the fixing device has the advantages that:

[0014] The overall arrangement can quickly fix the earth pressure cell on the pile steel bar, is more convenient and flexible, and thus the installation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a semicircular clamp opening structure schematic view of the utility model.

[0016] Figure 2 is a semicircular clamp closing structure schematic view of the utility model.

[0017] Figure 3 is an overall explosion structure schematic view of the utility model.

[0018] Figure 4 is a fixing device explosion structure schematic view of the utility model.

[0019] In the drawing:

[0020] Base box 1, ring groove 2, notch 3, fixed cover 4, through hole 5, fixator 6, ring sleeve 61, support arm 62, semicircular clamp 63, bolt 64, limiting cavity 65, silk hole 66, limiting column 67, anti-dropping head 68, earth pressure cell 7, wire 8. DETAILED DESCRIPTION

[0021] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0022] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate 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 do not indicate or imply 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 on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between 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.

[0023] The present application will be further described below in conjunction with the drawings:

[0024] Embodiments

[0025] Reference Figures 1-4 A soil pressure cell fixing device, comprising a base box 1, wherein: at least one coaxial rotatingly mounted fixator 6 is provided on the outer circumferential surface of the base box 1, through the arrangement between the fixator 6 and the base box 1, the position of the fixator 6 can be adjusted according to the position of the pile reinforcement, so as to facilitate the connection between the fixator 6 and the pile reinforcement, an open cavity for placing the soil pressure cell 7 is formed on the upper surface of the base box 1, and a fixed cover 4 for fixing the soil pressure cell 7 is detachably fixedly installed on the open end of the base box 1, a through hole 5 is formed through the fixed cover 4, the diameter of the through hole 5 is smaller than the diameter of the soil pressure cell 7, so that the soil pressure cell 7 can contact the soil layer through the through hole 5.

[0026] In the embodiment, the fixer 6 comprises a ring sleeve 61, a support arm 62 and a semicircular clamp 63, the ring sleeve 61 is rotatably sleeved outside the bottom box 1, so that the fixer 6 can rotate 360 degrees around the bottom box 1 through the ring sleeve 61, thereby adjusting the position of the support arm 62 and the semicircular clamp 63, facilitating the fixed connection of the support arm 62 and the semicircular clamp 63 with the corresponding pile reinforcement, the outer circumferential surface of the ring sleeve 61 is fixedly connected with one end of the support arm 62, the other end of the support arm 62 is provided with the semicircular clamp 63, and a clamping hole for connecting with the pile reinforcement is formed between the semicircular clamp 63 and the support arm 62, so as to more closely hold the pile reinforcement and ensure the stability after being connected with the pile reinforcement.

[0027] In the embodiment, a notch 3 is formed on one side of the open cavity of the bottom box 1, and the notch 3 is arranged to facilitate the wiring of the lead 8 of the earth pressure cell 7 and avoid being extruded by the fixed cover 4.

[0028] In the embodiment, a ring groove 2 is coaxially formed on the outer circumferential surface of the bottom box 1, and the ring sleeve 61 is rotatably installed in the ring groove 2, so as to support and limit the ring sleeve 61 through the ring groove 2.

[0029] In the embodiment, an arc-shaped notch, a limiting cavity 65 and a wire hole 66 are formed on the end of the support arm 62 connected with the semicircular clamp 63, the arc-shaped notch is between the limiting cavity 65 and the wire hole 66, the arc-shaped notch and the semicircular clamp 63 form a circular hole, so as to firmly fix the pile reinforcement in the circular hole, the semicircular clamp 63 is slidably connected with the limiting cavity 65, so as to open between the semicircular clamp 63 and the support arm 62, clamp on the pile reinforcement, and a closing opening is arranged at the opening of the limiting cavity 65 to prevent the semicircular clamp 63 from being separated from the support arm 62.

[0030] In the embodiment, a limiting column 67 is fixedly installed at one end of the semicircular clamp 63, the limiting column 67 is slidably installed in the limiting cavity 65 and the closing opening, so that the semicircular clamp 63 has a certain opening space, thereby facilitating clamping on pile reinforcements of various specifications, a bolt 64 is threadedly installed at the other end of the semicircular clamp 63, the bolt 64 is threadedly connected with the wire hole 66, so that after the semicircular clamp 63 and the support arm 62 are clamped on the pile reinforcement, the bolt 64 is used to lock the semicircular clamp 63 and the support arm 62, thereby ensuring the firmness between the semicircular clamp 63 and the support arm 62 and the pile reinforcement, and welding can be performed at the connection between the semicircular clamp 63, the support arm 62 and the pile reinforcement.

[0031] In the embodiment, the other end of the limiting column 67 is fixedly installed with an anti-disengagement head 68, the anti-disengagement head 68 is slidably installed in the limiting cavity 65, the diameter of the anti-disengagement head 68 is greater than the inner diameter of the closing opening, so as to prevent the limiting column 67 from being disengaged from the limiting cavity 65.

[0032] Specifically, when the earth pressure cell 7 needs to be fixed on the pile reinforcement, the fixing cover 4 is opened, the earth pressure cell 7 is placed in the open cavity of the bottom box 1, and the lead wire 8 of the earth pressure cell 7 is placed in the gap 3, then the fixing cover 4 is installed, the earth pressure cell 7 is fixed through the fixing cover 4, and the stability of the earth pressure cell 7 in the bottom box 1 is ensured;

[0033] Then, according to the position of the pile reinforcement, the holder 6 is rotated, the supporting arm 62 and the semicircular clamp 63 correspond to the position of the pile reinforcement, after correspondence, the semicircular clamp 63 is opened and clamped on the pile reinforcement, and the earth pressure cell 7 is horizontally upward, finally the semicircular clamp 63 is fixed with the supporting arm 62 through the bolt 64, that is, the semicircular clamp 63 and the supporting arm 62 are fixed on the pile reinforcement, in order to ensure safety, the connection between the semicircular clamp 63, the supporting arm 62 and the pile reinforcement can be welded.

[0034] The technical scheme of the utility model, or the technical scheme inspired by the technical scheme of the utility model, designs similar technical schemes, and achieves the above technical effects, and falls within the protection scope of the utility model.

Claims

1. A soil pressure cell fixing device, characterized in that: Includes a base box (1), wherein: at least one fixing device (6) is rotatably installed on the outer peripheral surface of the base box (1), the upper surface of the base box (1) is provided with an open mouth for placing the earth pressure box (7), and a fixing cover (4) for fixing the earth pressure box (7) is fixedly installed at the open end of the base box (1), and a through hole (5) is provided on the fixing cover (4); The fixture (6) includes a ring (61), a support arm (62) and a semi-circular clamp (63). The ring (61) is rotatably sleeved on the outside of the bottom box (1). The outer circumference of the ring (61) is fixedly connected to one end of the support arm (62). The other end of the support arm (62) is provided with a semi-circular clamp (63).

2. The earth pressure cell fixing device as described in claim 1, characterized in that: The bottom box (1) has a notch (3) on one side of the open mouth, and the notch (3) is used for the wiring (8) of the earth pressure box (7).

3. The earth pressure cell fixing device as described in claim 2, characterized in that: The outer circumferential surface of the bottom box (1) is provided with an annular groove (2), and the ring sleeve (61) is rotatably installed in the annular groove (2).

4. The earth pressure cell fixing device as described in claim 1, characterized in that: The support arm (62) is connected to the semi-circular clamp (63) at one end, which is provided with an arc-shaped notch, a limiting cavity (65) and a threaded hole (66). The arc-shaped notch is located between the limiting cavity (65) and the threaded hole (66). The arc-shaped notch and the semi-circular clamp (63) form a circular hole. The semi-circular clamp (63) is slidably connected to the limiting cavity (65). The opening of the limiting cavity (65) is provided with a constriction.

5. The earth pressure cell fixing device as described in claim 4, characterized in that: One end of the semicircular clamp (63) is fixedly installed with a limiting post (67), which is slidably installed in the limiting cavity (65) and the closing opening. The other end of the semicircular clamp (63) is threaded with a bolt (64), which is threadedly connected to the threaded hole (66).

6. The earth pressure cell fixing device as described in claim 5, characterized in that: The other end of the limiting post (67) is fixedly installed with an anti-detachment head (68), which is slidably installed in the limiting cavity (65).

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