Guide pile casing perpendicularity detection equipment for deep hole cast-in-place pile construction
By designing a leveling mechanism and a fixing mechanism, the problem of detection error caused by the non-horizontal installation of the support plate was solved, and high-precision detection of the verticality of the guide sleeve was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI ERJIAN GRP CO LTD
- Filing Date
- 2025-07-20
- Publication Date
- 2026-05-22
AI Technical Summary
The existing equipment for detecting the verticality of guide casings used in deep-hole cast-in-place pile construction can lead to misjudgments of the test results and affect the accuracy of the test when the support plate is not installed horizontally.
A leveling mechanism and a fixing mechanism were designed. Through the cooperation of support rods, support sleeves, hinge rods and bevel gears, the horizontal adjustment and synchronous movement of the support plate are realized, ensuring that the support plate is in close contact with the inner wall of the casing. The verticality is judged by infrared transmitters and receivers.
This improves the accuracy of the detection, avoids misjudgments caused by differences in the height of the support plates, and ensures the accuracy and reliability of the detection results.
Smart Images

Figure CN224266809U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of verticality testing equipment, specifically a verticality testing device for a guide casing used in deep-hole cast-in-place pile construction. Background Technology
[0002] The verticality detection equipment for guide casings used in deep-hole cast-in-place pile construction is mainly used to accurately detect the verticality deviation of the guide casings during the installation process, ensuring that the installation meets engineering standards. This avoids problems such as drilling deviation and insufficient pile bearing capacity caused by casing tilting, providing a key guarantee for the quality of deep-hole cast-in-place piles.
[0003] Utility model patent CN221238392U discloses a verticality detection device for pile casing in pile foundation construction. The device includes a connecting plate, a bearing seat fixedly connected to the upper surface of the connecting plate, a reversible threaded rod fixedly connected to the inner ring of the bearing seat, and two internal threaded blocks threaded to the outer surface of the reversible threaded rod. A support plate is fixedly connected to the bottom surface of each internal threaded block. This device, with its crank handle, reversible threaded rod, internal threaded blocks, and support plate, utilizes the crank handle to rotate the reversible threaded rod within the bearing seat. Simultaneously, the cooperation of the reversible threaded rod and internal threaded blocks facilitates contact between the support plate and the pile casing, and also facilitates the positioning of the connecting plate. Furthermore, the cooperation of an infrared transmitter, infrared receiver, controller, and alarm ensures that when the pile casing is tilted, the infrared receiver cannot receive infrared light, sending a signal to the controller, and the alarm alerts the workers.
[0004] In the aforementioned prior art, the overall structure is supported by the contact and tightness between the support plate and the protective casing during the use of the detection device. However, during installation, if the support plates at both ends are not on the same horizontal line when they are fixed inside the protective casing, a height difference will exist between the two ends, causing the transmitter to be in a tilted state. Regardless of whether the protective casing is tilted or not, the receiver cannot detect the infrared radiation emitted by the transmitter during detection and will judge it as a tilted state, which will affect the detection results. Therefore, improvements are needed. Summary of the Invention
[0005] The purpose of this invention is to provide a verticality detection device for guide casing in deep-hole cast-in-place pile construction, which solves the problem of inaccurate verticality detection.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a verticality detection device for a guide casing used in deep-hole cast-in-place pile construction, comprising a fixed base, a level fixedly installed at the front end of the fixed base, a support rod hinged to the lower end of the fixed base, a fixed block fixedly connected to the bottom of the fixed base, a connecting base fixedly connected to the bottom of the fixed block, two symmetrically distributed connecting rods slidably connected to the lower end of the connecting base, a support plate hinged to the outer side of the other end of the connecting rods, an infrared transmitter fixedly installed at the upper end of one of the support plates, an infrared receiver fixedly installed at the upper end of the other support plate, a leveling mechanism provided on the fixed base, and a fixing mechanism provided on the connecting base.
[0007] Preferably, the leveling mechanism includes a fixed rod, with the fixed rod fixedly connected inside the fixed base. A slide block is slidably sleeved on the outer side of the fixed rod, and the slide block is slidably connected to the fixed base. A ball bearing is movably sleeved inside the slide block, and the ball bearing is slidably connected to the fixed base. A hinge rod is hinged to the lower end of the slide block, and a support sleeve is threadedly connected to the outer side of the hinge rod. A fixed ring is fixedly sleeved on the outer side of the hinge rod, and a handle is fixedly connected to the outer side of the fixed ring. By designing the leveling mechanism, the support plates at both ends can be adjusted to a horizontal state.
[0008] Preferably, the fixing base has a groove inside, and a ball bearing is slidably connected inside the groove. By designing the groove, the ball bearing can slide inside the groove.
[0009] Preferably, there are multiple handles, which are evenly distributed on the fixed ring. By designing the handles, the handles can drive the fixed ring to rotate.
[0010] Preferably, the fixing mechanism includes a rotating shaft, which is rotatably sleeved inside the fixing seat via a bearing. The rotating shaft is rotatably connected to the connecting seat. A first bevel gear is fixedly connected to the bottom of the rotating shaft, and a second bevel gear meshes with the outer side of the first bevel gear. A screw is fixedly sleeved inside the second bevel gear, and the screw is rotatably connected to the connecting seat via a bearing. Two symmetrically distributed sliders are threadedly connected to the outer side of the screw. The sliders are slidably connected to the connecting seat and fixedly connected to the connecting rod. By designing the fixing mechanism, the support plate and the protective sleeve can be brought into contact and pressed tightly together.
[0011] Preferably, a handle is fixedly connected to the top of the rotating shaft, and the handle is rotatably connected to the fixed base. By designing the handle, the handle can drive the rotating shaft to rotate.
[0012] Preferably, the screw is provided with a positive thread and a negative thread, which are symmetrically distributed on the screw. By designing the screw, the rotation of the screw can realize the movement of the two sliders in opposite directions.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model, through the design of support rods and support sleeves, enables the fixed seat to be supported and fixed by inserting the support rods and support sleeves into the ground. Through the threaded engagement between the hinge rod and the support sleeve, the hinge rod can be moved vertically when rotated. The movement of the hinge rod can push the slide to move horizontally, realizing the relative rotation between the fixed seat and the support rod. With the help of a level, the support plate can be leveled, avoiding the influence of relative height differences on the verticality test results.
[0015] 2. This utility model, through the meshing of bevel gear one and bevel gear two, enables the screw to rotate when the handle drives the shaft to rotate, thereby enabling the horizontal movement of the slider. The slider can drive the support plate to move, and the position of the support plate can be fixed by the contact between the support plate and the inner wall of the guide tube. Through the hinge between the support plate and the connecting rod, since the two support plates move synchronously, when the guide tube tilts, the tilt angles of the two support plates will be different. The infrared receiver cannot receive the infrared light emitted by the infrared transmitter, thus determining that the guide tube is not in a vertical state. It is convenient to use and has higher detection accuracy. Attached Figure Description
[0016] Figure 1 This is a perspective view of the overall structure of this utility model;
[0017] Figure 2 This utility model Figure 1 A partial three-dimensional sectional view of the structure;
[0018] Figure 3 This utility model Figure 2 Enlarged view of point A;
[0019] Figure 4 This utility model Figure 2 The front sectional view of the connector.
[0020] In the diagram: 1. Fixed seat; 2. Support rod; 3. Fixed block; 4. Connecting seat; 5. Connecting rod; 6. Support plate; 7. Infrared transmitter; 8. Leveling mechanism; 9. Fixing mechanism; 10. Infrared receiver; 11. Level; 81. Fixed rod; 82. Slide seat; 83. Ball bearing; 84. Slide groove; 85. Hinge rod; 86. Support sleeve; 87. Fixed ring; 88. Handle; 91. Rotating shaft; 92. Turning handle; 93. Bevel gear one; 94. Bevel gear two; 95. Screw; 96. Slider. Detailed Implementation
[0021] Please see Figure 1 , Figure 2A verticality detection device for guide casing used in deep-hole cast-in-place pile construction includes a fixed base 1, a level 11 fixedly installed at the front end of the fixed base 1, a support rod 2 hinged to the lower end of the fixed base 1, a fixed block 3 fixedly connected to the bottom of the fixed base 1, a connecting base 4 fixedly connected to the bottom of the fixed block 3, two symmetrically distributed connecting rods 5 slidably connected to the lower end of the connecting base 4, a support plate 6 hinged to the outer side of the other end of the connecting rods 5, an infrared transmitter 7 fixedly installed at the upper end of one support plate 6, an infrared receiver 10 fixedly installed at the upper end of the other support plate 6, a leveling mechanism 8 provided on the fixed base 1, and a fixing mechanism 9 provided on the connecting base 4.
[0022] Please see Figure 1 , Figure 2 , Figure 3 The leveling mechanism 8 includes a fixed rod 81, which is fixedly connected inside the fixed seat 1. A slide block 82 is slidably sleeved on the outside of the fixed rod 81, and the slide block 82 is slidably connected to the fixed seat 1. A ball bearing 83 is movably sleeved inside the slide block 82, and the ball bearing 83 is slidably connected to the fixed seat 1. A groove 84 is provided inside the fixed seat 1, and the ball bearing 83 is slidably connected inside the groove 84. By designing the groove 84, the ball bearing 83 can slide inside the groove 84. A hinge rod 85 is hinged to the lower end of the slide block 82. A support sleeve 86 is threadedly connected to the outside of the hinge rod 85. A fixed ring 87 is fixedly sleeved on the outside of the hinge rod 85. A handle 88 is fixedly connected to the outside of the fixed ring 87. There are multiple handles 88, which are evenly distributed on the fixed ring 87. By designing the handles 88, the handles 88 can drive the fixed ring 87 to rotate. By designing the leveling mechanism 8, the support plates 6 at both ends can be adjusted to a horizontal state.
[0023] Please see Figure 1 , Figure 2 , Figure 4 The fixing mechanism 9 includes a rotating shaft 91. The rotating shaft 91 is rotatably connected to the inside of the fixing seat 1 via bearings. The rotating shaft 91 is rotatably connected to the connecting seat 4. A handle 92 is fixedly connected to the top of the rotating shaft 91 and is rotatably connected to the fixing seat 1. The handle 92 is designed to drive the rotating shaft 91 to rotate. A first bevel gear 93 is fixedly connected to the bottom of the rotating shaft 91. A second bevel gear 94 meshes with the outer side of the first bevel gear 93. A screw 95 is fixedly sleeved inside the second bevel gear 94. The screw 95 is rotatably connected to the connecting seat 4 via a bearing. Two symmetrically distributed sliders 96 are connected to the outside of the screw 95 via a thread. The screw 95 is provided with positive and negative threads, which are symmetrically distributed on the screw 95. By designing the screw 95, the rotation of the screw 95 can realize the movement of the two sliders 96 in opposite directions. The sliders 96 are slidably connected to the connecting seat 4 and fixedly connected to the connecting rod 5. By designing the fixing mechanism 9, the support plate 6 can be made to contact and abut against the protective cylinder.
[0024] The specific implementation process of this utility model is as follows: In use, first insert the support rod 2 and the support sleeve 86 into the ground, then rotate the handle 88. The handle 88 drives the fixed ring 87 to rotate, and the fixed ring 87 drives the hinge rod 85 to rotate, so that the hinge rod 85 makes a threaded movement. The hinge rod 85 will move vertically, and the hinge rod 85 will deflect relative to the slide 82. The hinge rod 85 will drive the slide 82 to move horizontally along the fixed rod 81. The slide 82 will drive the ball 83 to slide along the slide groove 84, so that the fixed seat 1 deflects along the support rod 2. With the help of the level 11, the support plate 6 can be leveled to avoid the relative height difference of the support plate 6 affecting the verticality test results.
[0025] When testing is required, turn the handle 92, which drives the shaft 91 to rotate. The shaft 91 then drives the first bevel gear 93 to rotate, which in turn drives the second bevel gear 94 to rotate. The second bevel gear 94 then drives the screw 95 to rotate, causing the slider 96 to perform a threaded motion. The two sliders 96 will move in opposite directions, which will drive the connecting rod 5 and the support plate 6 to move, so that the support plate 6 comes into contact with the inner wall of the guide tube. Since the support plates 6 at both ends move synchronously, when the guide tube tilts, the tilt angles of the support plates 6 at both ends will be different. The infrared receiver 10 will not be able to receive the infrared rays emitted by the infrared transmitter 7, thus determining that the guide tube is not in a vertical state. This method is convenient to use and has higher detection accuracy.
Claims
1. A device for detecting the verticality of a guide casing used in deep-hole cast-in-place pile construction, comprising a fixed base (1), characterized in that: A level (11) is fixedly installed at the front end of the fixed base (1). A support rod (2) is hinged to the lower end of the fixed base (1). A fixed block (3) is fixedly connected to the bottom of the fixed base (1). A connecting seat (4) is fixedly connected to the bottom of the fixed block (3). Two symmetrically distributed connecting rods (5) are slidably connected to the lower end of the connecting seat (4). A support plate (6) is hinged to the outer side of the other end of the connecting rod (5). An infrared emitter (7) is fixedly installed on the upper end of one of the support plates (6). An infrared receiver (10) is fixedly installed on the upper end of the support plate (6). A leveling mechanism (8) is provided on the fixed seat (1), and a fixing mechanism (9) is provided on the connecting seat (4). The leveling mechanism (8) includes a fixing rod (81). The fixing rod (81) is fixedly connected inside the fixed seat (1). A sliding block (82) is slidably sleeved on the outside of the fixing rod (81). The sliding block (82) is slidably connected to the fixed seat (1). A ball bearing (83) is movably sleeved inside the sliding block (82). The ball bearing (83) is slidably connected to the fixed seat (1). The lower end of the slide (82) is hinged to a hinge rod (85). A support sleeve (86) is threadedly connected to the outside of the hinge rod (85). A fixing ring (87) is fixedly sleeved on the outside of the hinge rod (85). A handle (88) is fixedly connected to the outside of the fixing ring (87). The fixing mechanism (9) includes a rotating shaft (91). The rotating shaft (91) is rotatably sleeved inside the fixed seat (1) through a bearing. The rotating shaft (91) is connected to the connecting seat (4). The shaft (91) is rotatably connected to a bevel gear (93) at its bottom. A bevel gear (94) meshes with the outer side of the bevel gear (93). A screw (95) is fixedly sleeved inside the bevel gear (94). The screw (95) is rotatably connected to the connecting seat (4) via a bearing. Two symmetrically distributed sliders (96) are connected to the outer side of the screw (95) via a thread. The sliders (96) are slidably connected to the connecting seat (4). The sliders (96) are fixedly connected to the connecting rod (5).
2. The verticality testing equipment for guide casing used in deep-hole cast-in-place pile construction according to claim 1, characterized in that: The fixed base (1) has a groove (84) inside, and a ball (83) is slidably connected inside the groove (84).
3. The verticality testing equipment for guide casing used in deep-hole cast-in-place pile construction according to claim 1, characterized in that: The number of handles (88) is multiple, and the multiple handles (88) are evenly distributed on the fixing ring (87).
4. The verticality testing equipment for guide casing used in deep-hole cast-in-place pile construction according to claim 1, characterized in that: A handle (92) is fixedly connected to the top of the rotating shaft (91), and the handle (92) is rotatably connected to the fixed base (1).
5. The verticality testing device for guide casing used in deep-hole cast-in-place pile construction according to claim 1, characterized in that: The screw (95) is provided with a positive thread and a negative thread, which are symmetrically distributed on the screw (95).