Improved rock core clamping device

Abstract

The utility model discloses an improved rock core holding device which comprises a rock core holding unit body and an upper protective plate, a pair of supporting seats is arranged on the lower portion of the rock core holding unit body, supporting legs are installed at the lower ends of the supporting seats in a rotating mode, and one ends of the supporting legs are connected with a lower protective plate. Semicircular openings are formed in the pair of lower protection plates and the pair of upper protection plates, four plug pins are arranged at the lower ends of the upper protection plates, pin holes corresponding to the plug pins are formed in the supporting base and the lower protection plates, a plug is arranged on one side of each upper protection plate, and a plug hole corresponding to the plug is formed in one side of each lower protection plate. The upper protection plate is buckled with the supporting seat and the lower protection plate through the bolt and the locking mechanism on the pin hole, so that the cylindrical side wall of the core holder body is surrounded by the upper protection plate, the lower protection plate and the supporting seat, and the core holder body is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of core clamps, in particular to an improved core clamping device. Background Art

[0002] The core holder is a device used to clamp, protect rock samples and seal the cylinder or end surface when measuring the seepage characteristics of rock samples or conducting displacement tests in the laboratory. It is an indispensable and important auxiliary component in the development of experimental instruments. The shell of the core holder is usually a cylindrical structure, so the use of the core holder in the laboratory requires a bracket to support and fix it.

[0003] For example, the utility model patent with the publication number CN214097438U provides a core clamp, in which a bottom plate is fixedly installed at the bottom of the core clamp body, a base is movably sleeved on the outer side of the base plate, a support plate is movably sleeved on the bottom of the base through an axis, a slot is provided on the front side of the inner cavity of the support plate, and a card is movably sleeved on the inner cavity of the slot. The core clamp is movably connected to the base and the support plate by an axis, and the two support plates are connected by a card plate, a telescopic rod and a first spring, so that the two support plates can be opened. The limit plate is provided on the outer side of the support plate to limit the opening angle of the two support plates, so as to support the core clamp body. At the same time, when the core clamp body needs to be transported, the card plate, the telescopic rod and the first spring between the two support plates can be removed, so as to facilitate the transportation of the core clamp body. There is also a similar utility model patent with the publication number CN218098782U, which discloses a core clamp. The core clamp utilizes a movable sleeve to rotate multiple rotating plates through a linkage, thereby storing the rotating plates, and then rotating the support rod to reduce the space occupied by the support rod, and limiting the rotation angle of the support rod through a locking piece, thereby facilitating the subsequent transportation of the core clamp body. The above two core clamps are cleverly designed, and both solve the problem that the fixed frame on the core clamp occupies a large space and is inconvenient to transport. However, since the core clamp is a cylindrical structure, it is easy to roll and bump during transportation, and the core clamp is a precision test instrument. Once it is damaged by a bump, it may affect the accuracy of the experiment.

[0004] Based on the above reasons, it is necessary to introduce a core clamping device with a folding bracket, and the folding bracket can play a certain protective role on the core clamping body. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides an improved core clamping device, which solves the problem that the existing core clamps are inconvenient to transport and are easily bumped and damaged during transportation.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: an improved core clamping device, including a core clamp body and a pair of upper guard plates, a pair of support seats are provided at the lower part of the core clamp body, a pair of support seats are provided at the lower ends of the pair of support seats, support legs are rotatably installed in the folding grooves, one end of the support legs is connected to a lower guard plate, a pair of the lower guard plates and a pair of the upper guard plates are provided with semicircular openings corresponding to the core clamp body, four pins are provided at the lower end of the upper guard plate, pin holes corresponding to the pins are provided on the support seat and the lower guard plate, a locking mechanism is provided on the pin hole, a plug is provided on one side of the upper guard plate, and a socket corresponding to the plug is provided on one side of the lower guard plate.

[0007] Preferably, the locking mechanism includes a locking pin, and the support seat and the lower guard plate are both provided with a through hole which is perpendicular to and passes through the pin hole. The locking pin is slidably installed in the through hole and one end extends into the pin hole, and the other end of the locking pin extends out of the through hole and is connected to a handle having a diameter larger than the through hole. A spring is connected to the outer wall of the locking pin, and one end of the spring is connected to the side wall of the through hole. The latch is provided with a slot corresponding to the locking pin.

[0008] Preferably, a pair of auxiliary pins are provided on one side of the handle connected to the locking pin, and auxiliary pin holes corresponding to the pair of auxiliary pins are provided on both sides of the through hole.

[0009] Preferably, a rotating shaft is installed in the folding groove, the supporting leg is rotatably connected to the supporting seat via the rotating shaft, a torsion spring is connected to the outer wall of the rotating shaft, one end of the torsion spring is connected to the supporting leg, and a limiting pad is provided in the folding groove.

[0010] Preferably, the plug is made of steel, and a magnet is provided in the socket.

[0011] Preferably, a pair of connecting rods are hingedly connected between the pair of upper guard plates.

[0012] Beneficial Effects

[0013] The utility model provides an improved core clamping device, which has the following beneficial effects:

[0014] 1. When the device is in the folded state, the upper guard plate is buckled with the support seat and the lower guard plate through the locking mechanism on the latch and the pin hole, so that the upper guard plate, the lower guard plate and the support seat surround the cylindrical side wall of the core holder body, which protects the core holder body. At the same time, the device is folded into a shape similar to a rectangular parallelepiped, which prevents the core holder from rolling and causing damage during transportation.

[0015] 2. The supporting legs of the device together with the lower guard plate can play the role of supporting the core holder after being unfolded. At the same time, the upper guard plate and the lower guard plate can be connected through a plug and a socket to increase the supporting height, which is convenient and flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model in the folded state.

[0017] Figure 2 It is a left view of the utility model in a folded state.

[0018] Figure 3 It is the front view of the utility model in the expanded state.

[0019] Figure 4 It is a left view of the utility model in the expanded state.

[0020] Figure 5 It is a schematic diagram of the lower guard plate structure of the utility model.

[0021] Figure 6 It is a schematic diagram of the upper guard plate structure of the utility model.

[0022] Figure 7 It is an enlarged view of point A of the present utility model.

[0023] Figure 8 It is an enlarged view of point B of the present utility model.

[0024] In the figure: 1. core holder body; 2. upper guard plate; 3. connecting rod; 4. support seat; 4-1. folding groove; 4-2. rotating shaft; 5. supporting leg; 6. lower guard plate; 7. pin hole; 8. latch; 8-1. slot; 9. handle; 10. spring; 11. auxiliary pin; 12. locking pin; 13. torsion spring; 14. limit pad; 15. plug; 16. socket; 17. magnet. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-8The utility model provides a technical solution: an improved core clamping device, comprising a core clamping body 1, and also comprising a pair of upper guard plates 2, a pair of support seats 4 are provided at the lower part of the core clamping body 1, a pair of folding grooves 4-1 are provided at the lower ends of the pair of support seats 4, support legs 5 are rotatably installed in the folding grooves 4-1, one end of the support legs 5 is connected to a lower guard plate 6, a pair of the lower guard plates 6 and a pair of the upper guard plates 2 are provided with semicircular openings corresponding to the core clamping body 1, four pins 8 are provided at the lower end of the upper guard plate 2, pin holes 7 corresponding to the pins 8 are provided on the support seat 4 and the lower guard plate 6, a locking mechanism is provided on the pin hole 7, a plug 15 is provided on one side of the upper guard plate 2, and a plug hole 16 corresponding to the plug 15 is provided on one side of the lower guard plate 6;

[0027] The device is in a folded state when being transported or stored. In the folded state, a pair of upper guard plates 2 are buckled together with the lower guard plate 6 and the support seat 4, and the pin 8 of the upper guard plate 2 is inserted into the pin hole 7 of the lower guard plate 6 and the support seat 4. The locking mechanism fixes the pin 8 and the pin hole 7. The core clamp body 1 is located in the semicircular opening of the upper guard plate 2 and the lower guard plate 6. The upper guard plate 2, the lower guard plate 6 and the support seat 4 jointly play the role of protecting the core clamp body 1. When the core clamp body 1 is used for testing, the device is in an unfolded state. When unfolding, open the locking mechanism to remove the upper guard plate 2, rotate the support leg 5 90 degrees, and then connect the upper guard plate 2 with the lower guard plate 6 through the plug 15 and the jack 16. At this time, the support seat 4, the support leg 5, the lower guard plate 6 and the upper guard plate 2 jointly play the role of supporting the core clamp body 1.

[0028] Further, the locking mechanism includes a lock pin 12, and a through hole perpendicular to and through the pin hole 7 is provided on the support seat 5 and the lower guard plate 6. The lock pin 12 is slidably installed in the through hole and one end extends into the pin hole 7. The other end of the lock pin 12 extends out of the through hole and is connected to a handle 9 with a diameter larger than the through hole. The outer wall of the lock pin 12 is connected to a spring 10, and one end of the spring 10 is connected to the side wall of the through hole. The latch 8 is provided with a slot 8-1 corresponding to the lock pin 12;

[0029] Furthermore, a pair of secondary pins 11 are provided on one side of the handle 9 connected to the lock pin 12, and secondary pin holes corresponding to the pair of secondary pins 11 are provided on both sides of the through hole;

[0030] When the latch 8 is connected to the pin hole 7, one end of the lock pin 12 is inserted into the slot 8-1 of the latch 8. The spring 10 is a compression spring, so that one end of the lock pin 12 contacts the slot 8-1. When the latch 8 needs to be separated from the pin hole 7, the handle 9 is pulled to make one end of the lock pin 12 disengage from the slot 8-1. At the same time, a pair of sub-pins 11 disengage from the sub-pin holes. The spring 10 is compressed, and the handle 9 is rotated at an angle to make the pair of sub-pins 11 press against the side wall of the support seat 4 or the lower guard plate 6, thereby temporarily preventing the lock pin 12 from being reset. At this time, the latch 8 can be separated from the pin hole 7.

[0031] Furthermore, a rotating shaft 4-2 is installed in the folding groove 4-1, and the supporting leg 5 is rotatably connected to the supporting seat 4 through the rotating shaft 4-2. A torsion spring 13 is connected to the outer wall of the rotating shaft 4-2, and one end of the torsion spring 13 is connected to the supporting leg 5. A limiting pad 14 is provided in the folding groove 4-1;

[0032] When the latch pin 8 of the upper guard plate 2 is separated from the pin hole 7 of the lower guard plate 6, the support leg 5 together with the lower guard plate 6 is unfolded under the action of the torsion spring 13, and the torsion spring 13 can make the support leg 5 press against the limit pad 14, thereby keeping the support leg 5 in a vertical state.

[0033] Furthermore, the plug 15 is made of steel, and a magnet sheet 17 is provided in the socket 16;

[0034] The attraction of the magnet sheet 17 to the plug 15 can improve the stability of the connection between the plug 15 and the socket 16.

[0035] Furthermore, a pair of connecting rods 3 are hingedly connected between the pair of upper guard plates;

[0036] The connecting rod 3 is used to increase the stability of the device in the unfolded state.

[0037] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process.

[0038] Embodiment: The device is in a folded state when being carried or stored. In the folded state, a pair of upper guard plates 2 are buckled together with the lower guard plate 6 and the support seat 4. The latch 8 of the upper guard plate 2 is inserted into the pin hole 7 of the lower guard plate 6 and the support seat 4. One end of the lock pin 12 is inserted into the slot 8-1 of the latch 8. One end of the spring 10 lock pin 12 contacts the slot 8-1. The core clamp body 1 is located in the semicircular opening of the upper guard plate 2 and the lower guard plate 6. The upper guard plate 2, the lower guard plate 6 and the support seat 4 jointly play a role in protecting the core clamp body 1. When the core clamp body 1 is used for testing, the device needs to be unfolded, and the handle 9 is pulled to disengage one end of the lock pin 12 from the slot 8. -1, rotating the handle 9 by an angle can make a pair of auxiliary pins 11 press against the side wall of the support seat 4 or the lower guard plate 6, so that the lock pin 12 cannot be reset temporarily. At this time, separate the pin 8 from the pin hole 7 and remove the upper guard plate 2. Under the action of the torsion spring 13, the support leg 5 and the lower guard plate 6 are unfolded. The torsion spring 13 can make the support leg 5 press against the limit pad 14 to keep the support leg 5 in a vertical state. Rotate the upper guard plate 2 90° along the connection with the connecting rod 3, and then connect the upper guard plate 2 to the lower guard plate 6 through the plug 15 and the socket 16. At this time, the support seat 4, the support leg 5, the lower guard plate 6 and the upper guard plate 2 jointly support the core clamp body 1.

[0039] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Figure 1 (i.e., the main view of the folded state of the utility model) is used as a reference. Although the embodiments of the utility model have been shown and described, it is understandable to those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. An improved core clamping device, comprising a core clamping body (1), characterized in that: The core holder body (1) further comprises a pair of upper guard plates (2), a pair of support seats (4) being provided at the lower part of the core holder body (1), a pair of folding grooves (4-1) being provided at the lower ends of the pair of support seats (4), support legs (5) being rotatably mounted in the folding grooves (4-1), one end of the support legs (5) being connected to a lower guard plate (6), a pair of the lower guard plates (6) and a pair of the upper guard plates (2) being provided with semicircular openings corresponding to the core holder body (1), four pins (8) being provided at the lower ends of the upper guard plates (2), pin holes (7) corresponding to the pins (8) being provided on the support seats (4) and the lower guard plates (6), a locking mechanism being provided on the pin holes (7), a plug (15) being provided on one side of the upper guard plate (2), and a plug hole (16) corresponding to the plug (15) being provided on one side of the lower guard plate (6).

2. An improved core clamping device according to claim 1, characterized in that: The locking mechanism comprises a lock pin (12), the support seat (4) and the lower guard plate (6) are both provided with a through hole which is perpendicular to and passes through the pin hole (7), the lock pin (12) is slidably installed in the through hole and one end extends into the pin hole (7), the other end of the lock pin (12) extends out of the through hole and is connected to a handle (9) having a diameter larger than the through hole, the outer wall of the lock pin (12) is connected to a spring (10), one end of the spring (10) is connected to the side wall of the through hole, and the latch (8) is provided with a slot (8-1) corresponding to the lock pin (12).

3. An improved core clamping device according to claim 2, characterized in that: A pair of auxiliary pins (11) is provided on one side of the handle (9) connected to the lock pin (12), and auxiliary pin holes corresponding to the pair of auxiliary pins (11) are provided on both sides of the through hole.

4. An improved core clamping device according to claim 1, characterized in that: A rotating shaft (4-2) is installed in the folding groove (4-1), and the supporting leg (5) is rotatably connected to the supporting seat (4) via the rotating shaft (4-2). A torsion spring (13) is connected to the outer wall of the rotating shaft (4-2), and one end of the torsion spring (13) is connected to the supporting leg (5). A limiting pad (14) is provided in the folding groove (4-1).

5. An improved core clamping device according to claim 1, characterized in that: The plug (15) is made of steel, and a magnet sheet (17) is provided in the socket (16).

6. An improved core clamping device according to claim 1, characterized in that: A pair of connecting rods (3) are hingedly connected between the pair of upper guard plates.

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