Clinometer fixing device for foundation pit monitoring

Abstract

The utility model discloses an inclinometer fixing device for foundation pit monitoring, and relates to the technical field of inclinometers. Comprising a circular ring, a supporting frame is fixed to the top of the circular ring, a plurality of fasteners are arranged on the outer side of the circular ring, and the circular ring and the supporting frame are fixed to the outer side of an inclinometer pipe through the fasteners; a vertical frame is fixed to one side of the top end of the supporting frame, at least one guide pulley is arranged at the top end of the vertical frame, and a cable is guided through the guide pulleys. According to the utility model, the circular ring, the fastener and the support frame are arranged, during installation, the circular ring is sleeved on the outer side of the inclinometer pipe, and the circular ring and the inclinometer pipe are completely fixed by screwing the screw rod, so that the technical problem that a cable is driven to shake due to the fact that a fixed pipe possibly shakes in the inclinometer pipe in the prior art is solved, and the measurement precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inclinometers, in particular to an inclinometer fixing device for foundation pit monitoring. Background Art

[0002] An inclinometer is an instrument used to measure the top angle and azimuth of engineering structures such as boreholes, foundation pits, foundations, walls and dam slopes.

[0003] The Chinese utility model patent, with the authorization announcement number CN215677007U, discloses an inclinometer fixing device, which is composed of a support frame, a base plate, a pulley, a push-pull handle and other components. It solves the problem that when the probe enters the bottom of the inclinometer tube or moves from the bottom to the top of the inclinometer tube, the cable is easily in frictional contact with the top inner wall of the inclinometer tube, which can easily cause cable damage or breakage affecting continuous measurement.

[0004] The above solution solves the technical problems raised in the background calculation. In practical applications, the above fixing device still has certain defects, specifically:

[0005] During the test, the fixed pipe needs to be placed on the top of the inclinometer tube at the top of the foundation pit inclinometer hole. Under the pull of the cable, since the fixed pipe and the inclinometer tube are not fixed, the fixed pipe may shake in the inclinometer tube, thereby causing the cable to shake and affecting the measurement accuracy.

[0006] In addition, when the cable is placed and the scale ring is pulled to the measuring position, the scale ring may deviate from the measuring position due to unstable placement of the winding drum, cable shaking or external vibration, further reducing the measurement accuracy. Utility Model Content

[0007] The utility model aims to provide an inclinometer fixing device for foundation pit monitoring to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the utility model provides the following technical solutions: a fixing device for an inclinometer for foundation pit monitoring, comprising a circular ring, a support frame is fixed on the top of the circular ring, a plurality of fasteners are arranged on the outside of the circular ring, and the circular ring and the support frame are fixed to the outside of the inclinometer tube by the fasteners;

[0009] A vertical frame is fixed on one side of the top of the support frame, and at least one guide pulley is arranged on the top of the vertical frame to guide the cable through the guide pulley;

[0010] A lifting member is arranged on the opposite side of the vertical frame, and a supporting member is arranged on the side of the lifting member. The supporting member is lifted and lowered by the lifting member, and the scale ring is supported by the supporting member.

[0011] Preferably, the fastener comprises a screw rod movably threadedly connected to the circular ring and an extrusion block located outside the inclinometer tube, a first limit rod is fixed to the outside of the extrusion block, and the first limit rod is movably plugged with the circular ring;

[0012] The end of the screw is movably connected to the extrusion block through a bearing;

[0013] A spring is connected between the extrusion block and the circular ring.

[0014] Preferably, the lifting member includes a connecting plate and a screw rod, the screw rod is movably screwed to the connecting plate, a second limiting rod is fixed to the top end of the support frame, and the second limiting rod is movably plugged into the connecting plate.

[0015] Preferably, the support member comprises a die plate, two connecting shafts are fixed between the side walls of the die plate, a movable plate is movably connected to the shaft body of the connecting shaft, and a receiving groove is formed between the two movable plates;

[0016] The width of the receiving groove is larger than the diameter of the cable and smaller than the diameter of the scale ring;

[0017] A supporting block is arranged at the bottom of the movable plate, and the top end surface of the supporting block contacts the bottom end surface of the movable plate.

[0018] Preferably, when the cable abuts against the side of the guide pulley, the cable coincides with the central axis of the inclinometer casing.

[0019] Preferably, the extrusion block is a rubber block.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The inclinometer fixing device for foundation pit monitoring is provided with a circular ring, a fastener and a support frame. During installation, the circular ring is placed on the outside of the inclinometer tube, and the circular ring and the inclinometer tube are completely fixed by twisting the screw rod, thereby solving the technical problem in the prior art that the fixing tube may shake in the inclinometer tube, thereby causing the cable to shake, and improving the measurement accuracy.

[0022] At the same time, a guide pulley is provided. When the cable abuts against the side of the guide pulley, the central axis of the cable and the inclinometer tube coincide, ensuring that the cable is always located at the central axis of the inclinometer hole when the cable is pulled, which can avoid friction between the cable and the inner wall of the top of the inclinometer tube due to contact, and can prevent the cable from being damaged or broken to affect continuous measurement, thereby extending the service life of the cable;

[0023] Furthermore, a lifting member and a supporting member are provided, and the supporting member is moved to the node measurement position by the lifting member, and finally the scale ring is stably supported by the movable plate to prevent the scale ring from deviating from the measurement position due to external reasons, thereby further improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the left side axial view of the utility model;

[0025] Figure 2 It is a detailed view of the fastener of the utility model;

[0026] Figure 3 It is a half-section view of the support member of the utility model.

[0027] In the figure: 101, foundation; 102, inclinometer tube; 103, cable; 104, scale ring; 1, circular ring; 2, fastener; 201, screw; 202, extrusion block; 203, first limit rod; 204, spring; 3, support frame; 4, vertical frame; 5, guide pulley; 6, lifting member; 601, connecting plate; 602, screw; 603, second limit rod; 7, support member; 701, mouth plate; 702, connecting shaft; 703, movable plate; 704, receiving groove; 705, support block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The inclinometer in this solution is used to detect the excavation status of the foundation pit during the excavation process. When in use, the inclinometer probe and the cable 103 are placed in the inclinometer tube 102 at the top of the foundation 101 until the inclinometer probe is located at a proper position in the inclinometer hole.

[0030] like Figure 1-Figure 3 As shown, the utility model provides a technical solution: a fixing device for an inclinometer for foundation pit monitoring, comprising a circular ring 1 and a support frame 3, the support frame 3 is fixed on the top of the circular ring 1, four equidistantly arranged fasteners 2 are arranged on the outside of the circular ring 1, and the circular ring 1 and the support frame 3 are fixed to the outside of the inclinometer tube 102 by the fasteners 2.

[0031] like Figure 2 As shown, the fastener 2 includes a screw rod 201 movably threadedly connected to the circular ring 1 and an extrusion block 202 located on the outside of the inclinometer tube 102, a first limit rod 203 movably plugged with the circular ring 1 is fixed on the outside of the extrusion block 202, the end of the screw rod 201 is movably connected to the extrusion block 202 through a bearing, and a spring 204 is connected between the extrusion block 202 and the circular ring 1. It can be known that the fastener 2 can also be a mechanism for fixing the circular ring 1 and the support frame 3 on the outside of the inclinometer tube 102 in cooperation with an electric telescopic rod and related components.

[0032] In this solution, the number of the first limiting rods 203 and the number of the springs 204 are both set to two, and the first limiting rod 203 is located in the spiral coil of the spring 204. In addition, in order to increase the connection stability between the extrusion block 202 and the inclinometer tube 102, the extrusion block 202 is preferably made of rubber material.

[0033] During installation, the circular ring 1 is placed on the outside of the inclinometer tube 102, and the screws 201 are screwed by hand in sequence to preliminarily fix the circular ring 1 and the inclinometer tube 102, and finally the four screws 201 are screwed again until the circular ring 1 and the inclinometer tube 102 are completely fixed.

[0034] like Figure 1 As shown, a vertical frame 4 is fixed on one side of the top of the support frame 3, and at least one guide pulley 5 for guiding the cable 103 is arranged on the top of the vertical frame 4. In a specific embodiment of the present scheme, the number of guide pulleys 5 is set to two, one of which is located directly above the support frame 3, and the other is located directly above the inclinometer tube 102. When the cable 103 abuts against the side of the guide pulley 5, the central axis of the cable 103 and the inclinometer tube 102 coincide, ensuring that the cable 103 is always located at the central axis position of the inclinometer hole when the wire is pulled. In this way, friction between the cable 103 and the inner wall of the top of the inclinometer tube 102 due to contact can be avoided, and the cable 103 can be prevented from being damaged or broken to affect continuous measurement, thereby extending the service life of the cable 103.

[0035] like Figure 1 and Figure 3 As shown, a lifting member 6 is provided on the opposite side of the vertical frame 4 , and a supporting member 7 is provided on the side of the lifting member 6 . The supporting member 7 is lifted and lowered by the lifting member 6 , and the scale ring 104 is supported by the supporting member 7 .

[0036] Among them, Figure 3 As shown, the lifting member 6 includes a connecting plate 601 and a screw rod 602, the screw rod 602 is movably screwed to the connecting plate 601, a second limiting rod 603 is fixed to the top of the support frame 3, and the second limiting rod 603 is movably plugged into the connecting plate 601 to ensure that the connecting plate 601 can move in the vertical direction. It can be known that the lifting member 6 can also be a hydraulic cylinder or other lifting mechanism.

[0037] Among them, the support member 7 includes a mouth-shaped plate 701, two connecting shafts 702 are fixed between the side walls of the mouth-shaped plate 701, a movable plate 703 is movably connected to the shaft body of the connecting shaft 702, and a receiving groove 704 is formed between the two movable plates 703. It should be understood that the width of the receiving groove 704 is greater than the diameter of the cable 103 and smaller than the diameter of the scale ring 104. A support block 705 is arranged at the bottom of the movable plate 703, and the top end surface of the support block 705 is in contact with the bottom end surface of the movable plate 703.

[0038] Specifically, after the cable 103 is lowered, the screw rod 602 is rotated. When the screw rod 602 rotates, it drives the connecting plate 601 and the mouth plate 701 to move upward. When the top surface of the movable plate 703 is against the bottom surface of the scale ring 104, the screw rod 602 is stopped and the initial point is measured. After the initial point measurement is completed, the next point measurement is carried out, and the cable 103 is pulled upward. The cable 103 moves upward in the accommodating groove 704. When the next scale ring 104 moves upward, its top pushes the two movable plates 703 to both sides. When the scale ring 104 is located directly above the movable plate 703, the movable plate 703 is reset under the action of its own gravity, and then the cable 103 is moved down. The bottom surface of the scale ring 104 is against the top surface of the movable plate 703 again. At this time, the point is measured again. Repeat the above steps to complete the measurement of all points.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A fixture for an inclinometer for foundation pit monitoring, comprising a circular ring (1), characterized in that: A support frame (3) is fixed on the top of the circular ring (1), and a plurality of fasteners (2) are arranged on the outside of the circular ring (1), and the circular ring (1) and the support frame (3) are fixed to the outside of the inclinometer tube (102) through the fasteners (2); A vertical frame (4) is fixed to one side of the top end of the support frame (3), and at least one guide pulley (5) is arranged at the top end of the vertical frame (4), and the cable (103) is guided by the guide pulley (5); A lifting member (6) is arranged on the opposite side of the vertical frame (4), and a supporting member (7) is arranged on the side of the lifting member (6). The supporting member (7) is lifted and lowered by the lifting member (6), and the scale ring (104) is supported by the supporting member (7).

2. The inclinometer fixing device for foundation pit monitoring according to claim 1 is characterized in that: The fastener (2) comprises a screw rod (201) movably threadedly connected to the circular ring (1) and an extrusion block (202) located outside the inclinometer tube (102); a first limit rod (203) is fixed outside the extrusion block (202); and the first limit rod (203) is movably plugged into the circular ring (1); The end of the screw rod (201) is movably connected to the extrusion block (202) via a bearing; A spring (204) is connected between the extrusion block (202) and the circular ring (1).

3. The inclinometer fixing device for foundation pit monitoring according to claim 1 is characterized in that: The lifting member (6) comprises a connecting plate (601) and a screw rod (602), the screw rod (602) and the connecting plate (601) are movably screwed together, a second limiting rod (603) is fixed on the top end of the support frame (3), and the second limiting rod (603) and the connecting plate (601) are movably plugged together.

4. The inclinometer fixing device for foundation pit monitoring according to claim 1, characterized in that: The support member (7) comprises a die plate (701), two connecting shafts (702) are fixed between the side walls of the die plate (701), a movable plate (703) is movably connected to the shaft body of the connecting shaft (702), and a receiving groove (704) is formed between the two movable plates (703); The width of the accommodating groove (704) is greater than the diameter of the cable (103) and smaller than the diameter of the scale ring (104); A support block (705) is provided at the bottom of the movable plate (703), and the top end surface of the support block (705) is in contact with the bottom end surface of the movable plate (703).

5. The inclinometer fixing device for foundation pit monitoring according to claim 1, characterized in that: When the cable (103) abuts against the side of the guide pulley (5), the central axis of the cable (103) and the inclinometer tube (102) coincide.

6. The inclinometer fixing device for foundation pit monitoring according to claim 2, characterized in that: The extrusion block (202) is a rubber block.

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