Self-rotating clamp holder for detecting probe tube of inclinometer and inclinometer checking table

Abstract

The utility model relates to a self-rotation clamp holder and an inclinometer checking table for detecting an exploring tube of an inclinometer, the self-rotation clamp holder comprises an inner cylinder, an outer cylinder, a dial, a V-shaped groove and a locking screw, the outer cylinder is coaxially sleeved on the outer side of the inner cylinder, the outer cylinder and the inner cylinder are in running fit, the V-shaped groove is arranged in the V-shaped groove, and the locking screw is arranged in the V-shaped groove. The inner walls of the upper end and the lower end of the inner barrel body protrude inwards to form V-shaped grooves with inward groove openings and parallel to the axis of the inner barrel body, and locking bolts are arranged on the portions, extending out of the outer barrel body upwards and downwards, of the inner barrel body opposite to the V-shaped grooves respectively. The inclinometer checking table is provided with a table frame, an orientation rotary table is installed on the table frame in a rotating fit mode, the self-rotation clamping device is installed on the orientation rotary table in a rotating fit mode, the rotation axis of the orientation rotary table is perpendicular to the rotation axis of the self-rotation clamping device, the orientation rotary table and the rotation axis of the self-rotation clamping device are provided with respective dials, and three-degree-of-freedom rotation after the exploring tube is clamped can be achieved. The device is simple in structure, convenient to operate and high in detection accuracy and precision.

Description

Technical Field

[0001] This utility model relates to a rotating clamp for detecting inclinometer probes and an inclinometer calibration stand using such a rotating clamp, belonging to the field of exploration equipment inspection and testing technology. Background Technology

[0002] A clinometer probe holder is a clamping device used to hold the inclinometer probe during inspection and testing. Traditional clinometer probe holders employ a structure similar to a rotator. The clamping cylinder, used for mounting and holding the probe, has four locking bolts or four jaws evenly distributed circumferentially on its wall. In use, the probe is inserted into the clamping cylinder, and the probe is clamped and fixed by rotating the four locking bolts or adjusting the position of the four jaws, ensuring the probe is coaxial with the clamping cylinder. Then, the inclinometer probe is inspected and tested. This type of clinometer probe holder requires the probe to be clamped at the center of rotation of the clamping cylinder; that is, after clamping, the probe must be coaxial with the clamping cylinder. Otherwise, the accuracy and precision of the test will be affected. It has a complex structure, requires high machining precision, and is cumbersome to operate. Utility Model Content

[0003] To overcome the above-mentioned defects of the prior art, this utility model provides a self-rotating clamp and an inclinometer calibration table for inclinometer probe detection, which has a simple structure, is easy to operate, and has high detection accuracy.

[0004] The technical solution of this utility model to achieve the above-mentioned objective is as follows: a rotating clamp for inclinometer probe detection, comprising an inner cylinder (or clamping cylinder) and an outer cylinder (or support cylinder). The outer cylinder is coaxially fitted on the outside of the inner cylinder, and the two are rotatably engaged. The top of the inner cylinder is provided with a radially outward protruding annular boss, the bottom surface of which abuts against the top of the outer cylinder. The bottom end of the inner cylinder extends downward beyond the outer cylinder. The inner walls at both the upper and lower ends of the inner cylinder protrude inward to form V-shaped grooves with the opening facing inward. The two V-shaped grooves are parallel, or one side of the shaft hole of the inner cylinder is a V-shaped through groove. Probe locking bolts are horizontally provided on the upper and lower parts of the inner cylinder that extend beyond the outer cylinder, respectively. The probe locking bolts penetrate the inner cylinder wall from the outside to the inside and are threadedly connected to the inner cylinder wall. The inner end of the probe locking bolt faces the opening of the V-shaped groove or the V-shaped through groove.

[0005] Preferably, both the inner cylinder and the outer cylinder are cylindrical, with the outer diameter of the inner cylinder matching the inner diameter of the outer cylinder. After the outer cylinder is fitted onto the outside of the inner cylinder, a rotational clearance is left between them to allow free circumferential rotation.

[0006] Preferably, the V-groove or the V-shaped through groove has a left-right symmetrical structure, that is, the V-groove or the V-shaped through groove has a symmetrical structure symmetrical about the axis of the inner cylinder.

[0007] Preferably, the axis of the probe locking bolt, the tip of the bottom of the V-groove or the V-shaped through groove, and the axis of the inner cylinder are in the same vertical plane, that is, the line connecting the inner end center of the probe locking bolt and the tip of the bottom of the V-groove or the V-shaped through groove intersects the axis of the inner cylinder.

[0008] When the inner walls at both the upper and lower ends of the inner cylinder are provided with the V-shaped grooves, the positions (or heights) of the two V-shaped grooves and the two probe locking bolts on the inner cylinder are preferably horizontally corresponding one-to-one.

[0009] Preferably, the bottom tip of the V-groove or the V-shaped through groove has a rounded transition.

[0010] Preferably, the inner end of the probe locking bolt is provided with an elastic pad.

[0011] Preferably, a scale ring is coaxially sleeved on the top outer side of the outer cylinder, the scale ring is rotatably fitted with the outer cylinder and is provided with a scale ring locking screw, and the outer wall of the scale ring is provided with scale.

[0012] Furthermore, the outer diameter of the outer cylinder matches the inner diameter of the scale ring. After the scale ring is fitted onto the outside of the outer cylinder, a rotation gap is left between the two to allow free circumferential rotation.

[0013] Preferably, the scale ring locking screw passes through the ring wall of the scale ring from the outside to the inside and is threadedly connected to the ring wall of the scale ring.

[0014] Preferably, the outer wall of the top of the outer cylinder is provided with a radially outwardly protruding annular flange, and the scale ring is located above the annular flange with the bottom end of the scale ring abutting against the top surface of the annular flange.

[0015] Furthermore, the height of the scale ring is not greater than the distance between the top surface of the annular flange and the top surface of the outer cylinder.

[0016] Preferably, a vernier is provided on the outer wall of the annular boss.

[0017] Preferably, the annular protrusion is provided with a rotating handle that extends horizontally outward.

[0018] Furthermore, there are two rotating handles, which are symmetrically arranged on the annular protrusion with the axis of the inner cylinder as the axis of symmetry.

[0019] Furthermore, the axis of the rotating handle is perpendicular to the axis of the probe locking bolt.

[0020] Preferably, the outer cylinder and the inner cylinder are provided with a matching axial positioning and anti-detachment structure.

[0021] Preferably, the axial positioning anti-detachment structure includes an annular groove provided circumferentially on the outer wall of the inner cylinder and an anti-detachment top screw provided on the outer cylinder. The anti-detachment top screw penetrates the cylinder wall of the outer cylinder from the outside to the inside and is threadedly connected to the cylinder wall of the outer cylinder. The inner end of the anti-detachment top screw is located in the annular groove and has a rotational fit clearance with the groove wall of the annular groove.

[0022] The inclinometer calibration platform is equipped with a frame, on which a probe detection rotation clamp is installed. The probe detection rotation clamp adopts any of the rotation clamps for inclinometer probe detection disclosed in this utility model.

[0023] Preferably, the platform includes a triangular bracket and a support rod. The support rod is vertically mounted on the triangular bracket, and an azimuth turntable is rotatably mounted on the top of the support rod. The outer cylinder (or tilting turntable) of the probe detection rotating clamp is rotatably mounted on the azimuth turntable, and the rotation axis of the azimuth turntable is perpendicular to the rotation axis of the outer cylinder.

[0024] Preferably, the azimuth turntable is provided with an outer cylinder locking screw, and the support rod is provided with an azimuth turntable locking screw.

[0025] Preferably, an azimuth scale is provided between the azimuth turntable and the support rod, and an inclined scale is provided between the outer cylinder and the azimuth turntable.

[0026] Preferably, the orientation turntable is equipped with a level, and the triangular bracket is equipped with a flat plate adjusting bolt (or leveling anchor bolt).

[0027] Both the azimuth turntable and the outer cylinder body can be in the shape of a cube or cuboid. Both the main body of the azimuth turntable and the main body of the outer cylinder body are provided with a vertically outwardly extending rotating shaft. The rotating shaft of the azimuth turntable is coaxially and rotatably connected to the top end of the support rod. The main body of the azimuth turntable is provided with a transverse outer cylinder mounting hole. The outer cylinder mounting hole is a through hole. The rotating shaft of the outer cylinder body is inserted into the outer cylinder mounting hole and rotatably engages with the outer cylinder mounting hole. The end of the rotating shaft of the outer cylinder body extends outward from the outer cylinder mounting hole. The end of the rotating shaft of the outer cylinder body is provided with a handle.

[0028] Preferably, the support rod is detachably mounted on the triangular bracket, for example, by threaded connection or plug-in connection, and the triangular bracket is a foldable triangular bracket.

[0029] The beneficial effects of this utility model are as follows: The self-rotating clamp of this utility model, through the cooperation of the V-shaped groove or V-shaped through groove on the inner wall of the inner cylinder and the probe locking bolt, can conveniently and quickly clamp and fix the probe inside the inner cylinder, ensuring that the axis of the probe is parallel to the axis of the inner cylinder. This is not limited by the different diameters of different probe models (when the axis of the probe is parallel to the axis of the inner cylinder, the rotation angle of the probe eccentrically clamped inside the inner cylinder is independent of the eccentricity, and the rotation angle when the probe and the inner cylinder are coaxial is the same as the rotation angle after rotating along the extension line of the rotation angle when the probe is eccentrically clamped inside the inner cylinder). The inclinometer calibration platform of this utility model can quickly and accurately measure the probe's attitude tilt angle (apex angle), azimuth angle, and tool face angle (rotation angle), and has the characteristics of simple structure, convenient operation, easy processing, and high detection accuracy and precision. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural schematic diagram of one embodiment of the self-rotating clamp of this utility model;

[0031] Figure 2 This utility model relates to a self-rotating clamp. Figure 1 Axial sectional view of the implementation method;

[0032] Figure 3 This utility model relates to a self-rotating clamp. Figure 1 Top view of the implementation method;

[0033] Figure 4 This is a comparative diagram showing the rotation angles when the probe is coaxially clamped and fixed inside the inner cylinder versus when the probe is eccentrically clamped and fixed inside the inner cylinder (with the axis of the probe parallel to the axis of the inner cylinder).

[0034] Figure 5 This is a three-dimensional structural schematic diagram of one embodiment of the inclinometer calibration platform of this utility model;

[0035] Figure 6 This utility model relates to a calibration platform for an inclinometer. Figure 4 An axial sectional view of the embodiment. Detailed Implementation

[0036] All directional indicators (such as up, down, left, right, top, bottom, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure), and do not constitute a limitation on the actual use direction. If the specific posture changes, the directional indicator will also change accordingly.

[0037] See Figures 1-3This utility model discloses a rotating clamp for inclinometer probe detection, comprising an inner cylinder (or clamping cylinder) 1 and an outer cylinder (or supporting cylinder) 2. Both the inner and outer cylinders are cylindrical. The outer diameter of the inner cylinder matches the inner diameter of the outer cylinder. The outer cylinder is coaxially fitted onto the outside of the inner cylinder. The inner and outer cylinders are rotatably fitted (a circumferential rotational clearance is provided between the outer wall of the inner cylinder and the inner wall of the outer cylinder to allow free circumferential rotation), so that the inner cylinder can rotate circumferentially within the outer cylinder. The top of the inner cylinder has a radially outwardly protruding annular boss 3. The bottom surface of the annular boss abuts against the top of the outer cylinder, so that the outer cylinder can effectively support the inner cylinder. The bottom end of the inner cylinder extends downward beyond the outer cylinder. The inner cylinder is used to clamp the inclinometer probe, and the outer cylinder is used to support the inner cylinder. The inner walls at both the upper and lower ends of the inner cylinder protrude inward to form V-shaped grooves 4 with the opening facing inward. The two V-shaped grooves are parallel, or one side of the shaft hole of the inner cylinder is in the shape of a V-shaped through groove. The upper and lower parts of the inner cylinder extending out of the outer cylinder are respectively provided with probe locking bolts 5 horizontally. The probe locking bolts penetrate the cylinder wall of the inner cylinder from the outside to the inside and are threadedly connected to the cylinder wall of the inner cylinder, so that the length of the probe locking bolts inserted into the inner cylinder can be adjusted by rotating the probe locking bolts as needed. The inner end of the probe locking bolts faces the opening of the V-shaped groove or the V-shaped through groove, so as to clamp and fix the probe inserted into the inner cylinder with the opening of the V-shaped groove or the V-shaped through groove.

[0038] The V-groove or V-shaped through groove is preferably symmetrical, meaning it is symmetrical about the axis of the inner cylinder. When the probe is inserted into the inner cylinder, the two side walls of the V-groove or V-shaped through groove provide fulcrums for the probe. Combined with the pushing action of the inner end of the probe locking bolt (by adjusting the length of the probe locking bolt extending into the inner cylinder so that the inner end of the probe locking bolt abuts against the probe wall), the probe is clamped and fixed within the inner cylinder (three-point fastening), ensuring that the axis of the probe is parallel to the axis of the inner cylinder.

[0039] The axis of the probe locking bolt, the tip of the bottom of the V-groove or the V-shaped through groove, and the axis of the inner cylinder are preferably in the same vertical plane. That is, the line connecting the center of the inner end of the probe locking bolt and the tip of the bottom of the V-groove or the V-shaped through groove intersects the axis of the inner cylinder (the probe locking bolt is located opposite the V-groove or the V-shaped through groove with the axis of the inner cylinder as the axis of symmetry), so as to improve the stability of the probe clamping after the V-groove or the V-shaped through groove and the probe locking bolt are engaged.

[0040] When the inner walls at both the upper and lower ends of the inner cylinder are provided with the V-shaped grooves, the two V-shaped grooves are respectively located in the annular boss and in the part of the inner cylinder that extends downwards out of the outer cylinder. The positions (or heights) of the two V-shaped grooves and the two probe locking bolts on the inner cylinder are preferably horizontally corresponding one-to-one, which helps to further improve the stability of the probe clamping.

[0041] The bottom tip of the V-groove or the V-shaped through groove preferably has a rounded transition.

[0042] The inner end of the probe locking bolt is preferably provided with an elastic pad, such as a rubber pad, to avoid damage to the outer wall of the probe when clamping it.

[0043] Preferably, a graduated ring 6 is coaxially sleeved on the top outer side of the outer cylinder. The outer diameter of the outer cylinder matches the inner diameter of the graduated ring, and the graduated ring and the outer cylinder are rotatably fitted (a rotational clearance is left between the inner wall of the graduated ring and the outer wall of the outer cylinder to allow free circumferential rotation), so that the graduated ring can rotate circumferentially within the outer cylinder. A graduated ring locking screw 7 is provided on the graduated ring for circumferentially locking and fixing the graduated ring after it has rotated circumferentially to a designated position within the outer cylinder. The graduated ring locking screw penetrates the ring wall from the outside in and is threadedly connected to the ring wall. By rotating the graduated ring locking screw, the inner end of the screw can be tightly pressed against the outer wall of the outer cylinder (similar to a set screw), achieving circumferential positioning of the graduated ring on the outer cylinder. An angular scale is provided on the outer wall of the graduated ring in a 360° clockwise direction, serving as the main scale for measuring the rotation angle of the inner cylinder within the outer cylinder.

[0044] Preferably, the outer wall of the outer cylinder has a radially outwardly protruding annular flange 8 for supporting the scale ring. The scale ring is located above the annular flange, and its bottom end abuts against the top surface of the annular flange. The height of the scale ring is not greater than the distance between the top surface of the annular flange and the top surface of the outer cylinder, so that when the annular boss at the top of the inner cylinder abuts against the top of the outer cylinder, it does not affect the support of the outer cylinder for the inner cylinder (avoiding the scale ring from pushing the inner cylinder upward).

[0045] Preferably, a vernier is provided on the outer wall of the annular boss. By cooperating with the scale on the scale ring, the rotation angle of the inner cylinder within the outer cylinder can be accurately obtained. The specific usage is as follows: Rotate the scale ring (you can hold the scale ring locking screw and rotate the scale ring) until the zero position of the scale ring is at the specified position. Rotate the scale ring locking screw to circumferentially lock and position the scale ring within the outer cylinder (to prevent accidental rotation of the scale ring). Rotate the inner cylinder to rotate the probe clamped and fixed within the inner cylinder to the specified position. The rotation angle of the probe is obtained through the scale on the scale ring and the vernier. The 0° of the vernier corresponds to the degree on the scale dial. The degree of the vertically overlapping scale line of the vernier and the scale dial multiplied by a corresponding multiple (e.g., 4 times) is the minute.

[0046] Preferably, a horizontally extending rotating handle 9 is provided on the annular boss to facilitate rotation of the inner cylinder. There are typically two rotating handles, symmetrically arranged on the annular boss about the axis of the inner cylinder for easy operation. The axis of the rotating handle is preferably perpendicular to the axis of the probe locking bolt.

[0047] Preferably, an axial positioning and anti-detachment structure is provided between the outer cylinder and the inner cylinder to prevent the inner cylinder from moving axially within the outer cylinder. The axial positioning and anti-detachment structure includes an annular groove 10 circumferentially located on the outer wall of the inner cylinder and an anti-detachment screw on the outer cylinder. The anti-detachment screw penetrates the wall of the outer cylinder from the outside in and is threadedly connected to the wall of the outer cylinder. When the outer cylinder is fitted onto the outside of the inner cylinder, the anti-detachment screw and the annular groove are axially aligned. The inner end of the anti-detachment screw is located within the annular groove and has a rotational clearance with the groove wall, so that the axial positioning and anti-detachment structure can both restrict the axial position of the inner cylinder within the outer cylinder (preventing relative axial movement) and not affect the circumferential relative rotation of the inner cylinder relative to the outer cylinder.

[0048] The rotating clamp for inclinometer probe testing uses the V-groove or V-through groove on the inner wall of the inner cylinder to cooperate with the probe locking bolt. This allows for convenient and quick clamping and fixing of the probe inside the inner cylinder, ensuring that the probe's axis is parallel to the axis of the inner cylinder. It is not limited by the different diameters of different probe models. When applied to an inclinometer calibration platform, it can quickly and accurately measure the probe's tilt angle (apex angle), azimuth angle, and tool face angle (rotation angle). The principle of using a probe with its axis parallel to the axis of the inner cylinder for detection is as follows: When the probe is coaxially clamped and fixed inside the inner cylinder, the inner cylinder causes the probe to rotate (or be said to rotate) by an angle ∠AOB. Then, the probe is eccentrically clamped and fixed inside the inner cylinder (the probe's axis is parallel to the inner cylinder's axis), causing the inner cylinder to rotate the probe from one intersection point of the extension of ∠AOB and the circumference of the probe's axis (the circumference formed by rotating the probe's axis along the inner cylinder's axis) to another intersection point. The probe's rotation angle is ∠COD, and ∠COD = ∠AOB (e.g., ...). Figure 4 (As shown). That is, the probe is eccentrically clamped and fixed inside the inner cylinder (the axis of the probe is parallel to the axis of the inner cylinder) to detect the probe. The rotation angle of the probe is the same as the rotation angle when the probe and the inner cylinder are coaxially clamped and fixed, and the rotation angle of the eccentric clamping is independent of the eccentricity.

[0049] See Figure 5 and Figure 6 The present invention also discloses an inclinometer calibration platform, which is provided with a frame and a probe detection rotation clamp is installed on the frame. The probe detection rotation clamp adopts any of the rotation clamps for inclinometer probe detection disclosed in the present invention.

[0050] The platform includes a triangular bracket 11 and a support rod 12. The support rod is vertically mounted on the triangular bracket, and an azimuth turntable 13 is rotatably mounted on the top of the support rod. The azimuth turntable can rotate freely on the support rod. The outer cylinder (or tilting turntable) 2 of the probe detection rotating gripper is rotatably mounted on the azimuth turntable, and the outer cylinder can rotate freely on the azimuth turntable. The rotation axis of the azimuth turntable is perpendicular to the rotation axis of the outer cylinder. The azimuth turntable, the outer cylinder (or tilting turntable), and the inner cylinder (or tool face turntable) constitute a three-degree-of-freedom rotatable turntable.

[0051] Preferably, the azimuth turntable is equipped with an outer cylinder locking screw to facilitate locking and fixing of the outer cylinder after it rotates on the azimuth turntable (after rotating by a corresponding angle). Preferably, the support rod is equipped with an azimuth turntable locking screw to facilitate locking and fixing of the azimuth turntable after it rotates on the support rod (after rotating by a corresponding angle). Other suitable locking devices under existing technology can also be used to achieve mutual locking and fixing between the outer cylinder and the azimuth turntable, and between the azimuth turntable and the support rod.

[0052] Preferably, a level 14 is provided on the azimuth turntable. The level can be a bubble level, which facilitates observation of the horizontal state of the azimuth turntable. The triangular bracket is provided with a flat adjusting bolt (or leveling anchor bolt) 15 for leveling the inclinometer calibration platform.

[0053] Both the azimuth turntable and the outer cylinder body can be cubic or cuboid in shape. Both the main body of the azimuth turntable and the main body of the outer cylinder body have vertically outwardly extending rotating shafts. The top of the support rod has a vertically downward azimuth turntable mounting hole. This mounting hole is a blind hole, and its diameter matches the outer diameter of the rotating shaft. The rotating shaft is coaxially inserted into the mounting hole with a rotational clearance, meaning the rotating shaft is coaxially and rotatably connected to the top of the support rod. The main body of the azimuth turntable also has a horizontal outer cylinder mounting hole. This hole is a through hole, and its diameter matches the outer diameter of the rotating shaft. The rotating shaft is coaxially inserted into the mounting hole with a rotational clearance, meaning the rotating shaft is rotatably connected to the azimuth turntable. The end of the rotating shaft of the outer cylinder extends outward from the mounting hole of the outer cylinder, and the end of the rotating shaft of the outer cylinder is provided with a handle 16 to facilitate the rotation of the orientation turntable and / or the adjustment of the angle of the outer cylinder.

[0054] Preferably, an azimuth dial is provided between the azimuth turntable and the support rod to facilitate obtaining / reading the rotation angle of the azimuth turntable on the support rod. The azimuth dial can be located at the top of the support rod (circumferentially arranged along the top of the support rod). A vernier corresponding to the azimuth dial is provided on the rotation axis of the azimuth turntable. Preferably, an inclined dial is provided between the outer cylinder and the azimuth turntable to facilitate obtaining the rotation angle of the outer cylinder on the azimuth turntable. The inclined dial can be located on the main body of the azimuth turntable (circumferentially arranged along the opening of the mounting hole of the outer cylinder). A vernier corresponding to the inclined dial is provided on the rotation axis of the outer cylinder.

[0055] The support rod is preferably detachably mounted on the triangular bracket, for example, by a threaded connection or a plug-in connection, for easy assembly and disassembly. The triangular bracket is preferably a foldable triangular bracket, for easy storage or carrying after folding.

[0056] In use, the inclinometer calibration platform is assembled by mounting the support rod on the triangular bracket, mounting the azimuth turntable on the support rod, and mounting the outer cylinder (i.e., the probe detection rotation holder) on the azimuth turntable. Leveling is achieved by observing the level and adjusting the flat plate adjusting bolts. The inclinometer probe is then inserted into the inner cylinder of the probe detection rotation holder and tightened using the probe locking bolts. The probe is then tested.

[0057] This invention features a simple structure, convenient operation, ease of processing, and high accuracy and precision in detection. The probe detection rotating clamp and the inclinometer calibration platform can be manufactured in different specifications according to the outer diameter of the probe being tested (e.g., large-diameter probes with an outer diameter of 35-90mm, and small-diameter probes with an outer diameter of 38mm and below) to meet different testing and usage needs. This invention is suitable for use in laboratories, field inclinometer bases, or other portable applications.

[0058] Unless otherwise specified or further limited to one preferred or optional technical means being another, the preferred and optional technical means disclosed in this utility model can be arbitrarily combined to form several different technical solutions.

Claims

1. A self-rotating gripper for inclinometer probe detection, characterized in that The utility model provides a kind of self-rotating holder for detecting probe of inclinometer, including inner cylinder and outer cylinder, the outer cylinder is coaxially installed on the outside of the inner cylinder, rotationally cooperates between two, the top end of the inner cylinder is provided with the annular boss that projects radially outward, the bottom surface of the annular boss is on the top end of the outer cylinder, the bottom end of the inner cylinder is stretched out the outer cylinder, the inner wall of the upper and lower ends of the inner cylinder is all projected inward and forms the V-shaped groove that notches inward, two the V-shaped groove is parallel, or the hole wall of the axial hole of the inner cylinder is V-shaped through groove, the part that the inner cylinder is stretched out the outer cylinder is respectively horizontally provided with probe locking bolt upwards and downwards, probe locking bolt is from outside to inside and is penetrated the cylinder wall of the inner cylinder and is threadedly connected between the cylinder wall of the inner cylinder, the inner end of probe locking bolt is towards the notches of the V-shaped groove or the V-shaped through groove.

2. The self-rotating gripper for inclinometer probe testing of claim 1, wherein The V-shaped groove or the V-shaped through groove is left-right symmetrical structure.

3. The self-rotating gripper for borehole survey probe detection of claim 1, wherein The top outside of the outer cylinder is coaxially provided with scale ring, rotationally cooperates between the scale ring and the outer cylinder and is provided with scale ring locking screw, the outer wall of the scale ring is provided with scale.

4. The self-rotating gripper for borehole survey probe detection of claim 3, wherein The top outer wall of the outer cylinder is provided with the annular flange that projects radially outward, the scale ring is above the annular flange and the bottom end of the scale ring is on the top surface of the annular flange.

5. The spin-on gripper for borehole survey tool detection of claim 3, wherein The outer wall of the annular boss is provided with vernier.

6. The self-rotating gripper for borehole survey probe testing of claim 1, wherein The annular boss is provided with horizontal outwardly extending rotating handle.

7. The self-rotating gripper for borehole survey probe testing of claim 1, wherein The outer cylinder and the inner cylinder are provided with matched axial positioning anti-disengagement structure.

8. The self-rotating gripper for borehole survey probe testing of claim 7, wherein The axial positioning anti-disengagement structure includes annular groove provided on the outer wall of the inner cylinder along the circumference and anti-disengagement top wire provided on the outer cylinder, the anti-disengagement top wire is from outside to inside and is penetrated the cylinder wall of the outer cylinder and is threadedly connected between the cylinder wall of the outer cylinder, the inner end of the anti-disengagement top wire is in the annular groove and is left with rotationally cooperating gap between the groove wall of the annular groove.

9. A calibration rig for inclinometers, comprising a rig, characterised in that The gantry is installed with probe detection self-rotation holder, the probe detection self-rotation holder adopts any one of the self-rotation holder for detecting probe of inclinometer in claims 1-8.

10. The inclinometer calibration station of claim 9, wherein The gantry includes triangular support and support rod, the support rod is vertically installed on the triangular support, the top end of the support rod is rotationally cooperatively installed with azimuth turntable, the outer cylinder of the probe detection self-rotation holder is rotationally cooperatively installed on the azimuth turntable, the rotation axis of the azimuth turntable and the rotation axis of the outer cylinder are perpendicular to each other.

Images