Core sample clamping device
By designing a core sample clamping device for adjustable angle hinged chuck and clamp rod, the problem of difficulty in inserting the gap and contact surface of the chuck in the prior art is solved, and efficient and accurate core sample clamping is achieved.
Patent Information
- Application Number
- CN202421178412.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The existing core sample clamping device is difficult to easily insert when inserting the gap between the core sample and the structure, and the contact area between the chuck and the core sample surface is small, which easily leads to damage to the contact surface, increasing the difficulty of core sample clamping.
A core sample clamping device is designed, and its chuck and the clamp rod are hinged to adjust the angle. The chuck is adjusted to be perpendicular to the surface of the core sample before insertion, making it easy to insert; when the chuck is closed, it is a cylindrical cylindrical shape, and the inner wall of the clamp is fully fitted with the core sample, achieving full clamping and large contact area.
By adjusting the angle of the chuck, it is easy to insert the gap. The chuck is fully fitted with the core sample, avoiding damage to the contact surface and improving the efficiency and accuracy of core sample clamping.
Smart Images
Figure CN222800381U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of core drilling sampling test, in particular to a core sample clamping device. Background Art
[0002] The core drilling method is to first drill the core sample into shape on the structure with a core drilling machine, and then use the core sample clamping device to take out the core sample. It is mainly suitable for mixtures or concrete structures containing cementitious materials in engineering project construction, such as inorganic binder base or subbase, asphalt pavement, concrete pavement or wall, etc. After the core sample is drilled, the wall of the drill tube is thin and the gap between the core sample and the structure is too small.
[0003] like Figure 4 , 5 As shown, the clamping head and the clamping rod of the existing core sample clamping device are connected at a fixed angle. Figure 4 The two clamps of the core sample clamping device are cylindrical when closed, which can fit on the surface of the core sample and is not easy to damage the core sample. However, the two clamps have a certain angle at the opening, which is not convenient for inserting into the gap between the core sample and the structure. Figure 5 The two chucks of the core sample clamping device can be perpendicular to the surface of the structure when opened, which is convenient for inserting the core sample into the gap between the structure and the core sample. However, when clamping the core sample, the chuck and the surface of the core sample form a certain angle, and the chuck cannot fit on the surface of the core sample. The contact area between the chuck and the core sample is small, and the core sample is locally under great pressure, which can easily cause damage to the contact surface, increase the difficulty of clamping the core sample, and is not conducive to the progress of on-site core drilling detection work, seriously affecting the efficiency of core drilling detection work. Utility Model Content
[0004] In view of the problems existing in the prior art, the utility model aims to provide a core sample clamping device.
[0005] In order to solve the above problems, the utility model adopts the following technical solutions:
[0006] A core sample clamping device comprises two chucks and two clamping rods which are symmetrically arranged with each other, the chucks comprising a clamping plate and a top plate, the clamping plate is a half-circular arc-shaped plate, the top plate is a semicircular flat plate, the top plate is connected to the top of the clamping plate, the two chucks are cylindrical when closed to each other, the lower end of the clamping rod is hinged on the top plate to form a first hinge axis, the two clamping rods are X-shaped, cross each other and hinged to form a second hinge axis, the first hinge axis and the second hinge axis are parallel to each other, and a fastening component for fixing and limiting the relative movement of the clamping rod and the top plate is arranged on the top plate.
[0007] Preferably, a connecting plate is provided at the lower end of the clamping rod, and the connecting plate is relatively fixedly connected to the clamping rod, and the clamping rod is hinged to the top plate through one side of the connecting plate, and a strip slide groove is provided on the connecting plate, and the strip slide groove is perpendicular to the first hinge axis. The fastening assembly includes a screw and a nut, and the lower end of the screw is hinged to the top plate to form a third hinge axis, and the third hinge axis is parallel to the first hinge axis. The nut is threadedly connected to the screw, and the screw passes through the strip slide groove and can slide in the strip slide groove, and the lower surface of the nut abuts against the upper surface of the connecting plate.
[0008] Preferably, the upper end of the clamp rod is a handle, and the handle is formed by coaxially twisting the clamp rod 90° at one-third of the total length of the clamp rod from top to bottom and then bending it outward by 70°. The bending rotation center of the clamp rod when it is bent outward by 70° is parallel to the second hinge axis.
[0009] Preferably, the clamping rod is provided with a plurality of through holes from top to bottom, and two through holes at the same height on two clamping rods overlap with each other and are connected by a pin or a bolt to form a second hinge axis.
[0010] Beneficial effects of the utility model
[0011] Compared with the prior art, the advantages of the present invention are:
[0012] The chuck and the clamp rod of the utility model are hinged to each other and the angle can be adjusted. Before the chuck is inserted between the core sample and the structure, the chuck is adjusted to be perpendicular to the surface of the core sample to facilitate insertion. When the two chucks are closed to each other, they are in a cylindrical tube shape. The inner wall of the clamp can fully fit with the core sample to achieve full clamping. The contact area is large, avoiding the problem of damage to the contact surface of the core sample. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the structure of the clamp and the fastening assembly of the utility model;
[0015] Figure 3 It is a structural schematic diagram of the connecting plate of the utility model;
[0016] Figure 4 It is a structural schematic diagram of an existing core sample clamping device in which two clamps can be closed when clamping a core sample;
[0017] Figure 5 The present invention is a structural schematic diagram of an existing core sample clamping device in which two clamps form a certain angle when clamping the core sample. DETAILED DESCRIPTION
[0018] 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.
[0019] In the description of the present invention, it should be noted that the terms "upper / lower end", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting / sleeving", "sleeve connection", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0021] See also Figure 1-3 The utility model provides a technical solution: a core sample clamping device, comprising two chucks 1 and two clamping rods 2 which are symmetrically arranged, the chuck 1 comprising a clamping plate 11 and a top plate 12, the clamping plate 11 is a half-circular arc plate, the top plate 12 is a semicircular flat plate, the top plate 12 is connected to the top of the clamping plate 11, and the two chucks 1 are cylindrical when closed to each other, the lower end of the clamping rod 2 is hinged on the top plate 12 to form a first hinge axis 41, the two clamping rods 2 are X-shaped, cross each other and hinged to form a second hinge axis 42, the first hinge axis 41 and the second hinge axis 42 are parallel to each other, and a fastening component 3 for fixing and limiting the relative movement of the clamping rod 2 and the top plate 12 is provided on the top plate 12.
[0022] The chuck 1 and the clamp rod 2 of the utility model are hinged to each other and the angle can be adjusted. Before the chuck is inserted between the core sample and the structure, the chuck 1 is adjusted to be perpendicular to the surface of the core sample to facilitate insertion; and when the two chucks 1 are closed to each other, they are in a cylindrical tube shape, and the inner wall of the clamp plate 11 can fully fit with the core sample to achieve full clamping, with a large contact area, avoiding the problem of damage to the contact surface of the core sample.
[0023] Specifically, a connecting plate 5 is provided at the lower end of the clamping rod 2, and the connecting plate 5 is relatively fixedly connected to the clamping rod 2. The clamping rod 2 is hinged to the top plate 12 through one side of the connecting plate 5. A strip slide groove 51 is provided on the connecting plate 5, and the strip slide groove 51 is perpendicular to the first hinge axis 41. The fastening assembly 3 includes a screw rod 31 and a nut 32. The lower end of the screw rod 31 is hinged to the top plate 12 to form a third hinge axis 43, and the third hinge axis 43 is parallel to the first hinge axis 41. The nut 32 is threadedly connected to the screw rod 31, and the screw 31 passes through the strip slide groove 51 and can slide in the strip slide groove 51. The lower surface of the nut 32 abuts against the upper surface of the connecting plate 5. When in use, loosen the nut 32 and adjust the angle between the connecting plate 5 and the top plate 12 so that the clamping plate 11 is perpendicular to the core sample, which facilitates the insertion of the clamping plate 11 into the gap between the core sample and the structure. After the top plate 12 fits the surface of the core sample, tighten the nut 32 so that the nut 32 abuts against the upper surface of the connecting plate 5 to fix the relative position of the connecting plate 5 and the top plate 12, thereby realizing the function of the fastening assembly 3 to fix and limit the relative movement of the clamping rod 2 and the top plate 12.
[0024] Furthermore, the upper end of the clamp rod 2 is a handle 6, and the handle 6 is formed by coaxially twisting the clamp rod 1 90° at one-third of the total length of the clamp rod 2 from top to bottom and then bending it outward by 70°. The bending rotation center of the clamp rod 1 when it is bent outward by 70° is parallel to the second hinge axis 42, which facilitates holding and prevents pinching of the hand.
[0025] Furthermore, the clamping rod 2 is provided with a plurality of through holes 7 from top to bottom. The two through holes 7 at the same height on the two clamping rods 2 overlap with each other and are connected by a pin or a bolt to form a second hinge axis 42. When in use, the through holes 7 at different heights on the clamping rod 2 are selected to be connected by a pin or a bolt to form a second hinge axis 42 to change the fulcrum position so that core samples of different diameters can be clamped.
[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated 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 that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A core sample clamping device, characterized in that: The invention comprises two chucks (1) and two clamping rods (2) which are symmetrically arranged with each other, wherein the chuck (1) comprises a clamping plate (11) and a top plate (12), wherein the clamping plate (11) is a half-circular arc-shaped plate, and the top plate (12) is a semicircular flat plate, wherein the top plate (12) is connected to the top of the clamping plate (11), and when the two chucks (1) are closed to each other, they are in a cylindrical tube shape, and the lower end of the clamping rod (2) is hinged on the top plate (12) to form a first hinge axis (41), and the two clamping rods (2) are intersected with each other in an X shape and hinged to form a second hinge axis (42), and the first hinge axis (41) and the second hinge axis (42) are parallel to each other, and a fastening component (3) is provided on the top plate (12) for fixing and limiting the relative movement between the clamping rod (2) and the top plate (12).
2. A core sample clamping device according to claim 1, characterized in that: A connecting plate (5) is provided at the lower end of the clamping rod (2), and the connecting plate (5) is relatively fixedly connected to the clamping rod (2). The clamping rod (2) is hinged to the top plate (12) through one side of the connecting plate (5). A strip slide groove (51) is provided on the connecting plate (5), and the strip slide groove (51) is perpendicular to the first hinge axis (41). The fastening assembly (3) includes a screw rod (31) and a nut (32). The lower end of the screw rod (31) is hinged to the top plate (12) to form a third hinge axis (43), and the third hinge axis (43) is parallel to the first hinge axis (41). The nut (32) is threadedly connected to the screw rod (31), and the screw rod (31) passes through the strip slide groove (51) and can slide in the strip slide groove (51). The lower surface of the nut (32) abuts against the upper surface of the connecting plate (5).
3. A core sample clamping device according to claim 1, characterized in that: The upper end of the clamp rod (2) is a handle (6), and the handle (6) is formed by coaxially twisting the clamp rod (2) 90° at one-third of the total length of the clamp rod (2) from top to bottom and then bending it outward by 70°. The bending rotation center of the clamp rod (2) when it is bent outward by 70° is parallel to the second hinge axis (42).
4. A core sample clamping device according to claim 1, characterized in that: The clamping rod (2) is provided with a plurality of through holes (7) from top to bottom, and two through holes (7) at the same height on two clamping rods (2) overlap with each other and are connected via a pin or a bolt to form a second hinge axis (42).