A core drilling clamp device with adaptive clamping force adjustment

Abstract

The present invention relates to the technical field of core clamps, and discloses a core drilling clamp device with adaptive clamping force adjustment, comprising a cylinder, a clamping mechanism extending to the inner side of the cylinder is arranged on the left side of the cylinder, a pushing mechanism extending to the inner side of the clamping mechanism is arranged on the right side of the cylinder, a supporting mechanism is arranged at the bottom of the cylinder, two extending mechanisms are arranged on the inner side of the supporting mechanism and extend to the front and rear sides thereof respectively, a limiting mechanism extending to the outer side thereof is arranged on the inner side of the supporting mechanism, and the limiting mechanism is connected to the rear extension mechanism. The core drilling clamp device with adaptive clamping force adjustment, by arranging the clamping mechanism and the pushing mechanism, the clamping mechanism is opened, and the core is pushed to the left by the pushing mechanism, so that the core can be taken out for replacement, thereby achieving the purpose of facilitating the replacement of the core, and by arranging the supporting mechanism, the extending mechanism and the limiting mechanism, the purpose of facilitating the storage of the support frame is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of core clamps, in particular to a core drilling clamp device with adaptive clamping force adjustment. Background Art

[0002] After searching, the Chinese patent publication number is CN206399782U, which discloses a constant temperature core clamp device, including a cylinder, a mandrel, a left plug, a right plug, a left end cover, a right end cover, a clamping bow, an electric heating box and two left and right stop plugs. An annular pressure chamber is formed between the cylinder and the two stop plugs. The electric heating box is provided with a hot liquid flow outlet and a hot liquid flow inlet. The annular pressure chamber is provided with a liquid inlet and two liquid outlets. The present invention can make the annular pressure chamber in the clamp in a dynamic high-temperature liquid or static high-temperature liquid environment, and can be based on According to the need to simulate the environment in which the core is located, and can more realistically reflect the temperature of the core, the above-mentioned existing technical solutions have the following defects: when replacing the core, the confining pressure fluid needs to be emptied, and it is easy to contaminate the core. The time for replacing the core is very long and the operation is extremely inconvenient. Moreover, the support frame at the bottom of the core drilling clamp device is mostly fixed and the support frame cannot be stored, which makes the core clamp larger in size and inconvenient to carry the core clamp. Therefore, a core drilling clamp device with adaptive clamping force adjustment is proposed to solve the above-mentioned problems. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the present invention provides a core drilling clamp device with adaptive clamping force adjustment, which has the advantages of easy replacement of cores and easy storage of the support frame, and solves the problems mentioned in the above background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose of facilitating the replacement of cores and facilitating the storage of the support frame, the present invention provides the following technical solutions: a core drilling clamp device with adaptive clamping force adjustment, comprising a cylinder, a clamping mechanism extending to the inner side of the cylinder is arranged on the left side of the cylinder, a pushing mechanism extending to the inner side of the clamping mechanism is arranged on the right side of the cylinder, a supporting mechanism is arranged at the bottom of the cylinder, two extending mechanisms are arranged on the inner side of the supporting mechanism and extend to the front and rear sides thereof respectively, a limiting mechanism is arranged on the inner side of the supporting mechanism and extends to the outer side thereof, and the limiting mechanism is connected to the rear extension mechanism;

[0007] The clamping mechanism includes a rubber sleeve, a rubber sleeve is fixedly installed on the inner side of the cylinder, a mounting cover is threadedly connected to the outer side of the left end of the cylinder, a first plug extending to the inner side of the rubber sleeve and fitting with the inner wall thereof is slidably installed on the left side of the mounting cover, and a rotating ring fitting with the left side of the mounting cover is fixedly installed on the outer side of the first plug.

[0008] Preferably, the pushing mechanism includes a sealing cover, which is threadedly connected to the outer side of the right end of the cylinder, and a piston located on the right side of the cylinder is movably mounted on the inner wall of the sealing cover. A second plug extending to the inner side of the rubber sleeve and fitting therewith is slidably mounted on the right side of the sealing cover, a sealing ring fitting therewith the inner wall of the cylinder is fixedly mounted on the outer side of the second plug, the piston is fixedly connected to the outer side of the second plug, and a ring is fixedly mounted on the right side of the second plug.

[0009] Preferably, the supporting mechanism comprises a supporting plate, the bottom of the cylinder is fixedly mounted with the supporting plate, the bottom of the supporting plate is fixedly mounted with a column, and the bottom of the column is fixedly mounted with a base plate.

[0010] Preferably, the extension mechanism includes a mounting groove, and mounting grooves are provided on both the front and rear sides of the base plate. The inner top wall of the mounting groove is designed to be open, and the inner side of the mounting groove is rotatably connected to a connecting seat extending to its outer side, a supporting cross plate is fixedly installed on one side of the connecting seat, and a clamping seat is fixedly installed on the side of the supporting cross plate close to the column.

[0011] Preferably, the limiting mechanism includes a mounting hole, the interior of the column is provided with a mounting hole, a movable frame is slidably mounted on the inner side of the mounting hole and is sleeved on the outer side of the column, a fixing spring fixedly mounted on the bottom of the movable frame and fixedly connected to the inner bottom wall of the mounting hole, a retaining ring is fixedly mounted on the front and rear sides of the movable frame, a pull ring is fixedly mounted on the top of the movable frame, both ends of the pull ring extend to the left and right sides of the column respectively, and the retaining ring on the rear side is clamped with the rear side socket.

[0012] Preferably, two limiting holes are provided inside the movable frame, four fixing springs are provided, and an anti-slip groove is provided on a side of the supporting horizontal plate away from the column.

[0013] Preferably, the support plate is designed to be arc-shaped, and an anti-slip pad is fixedly installed on the bottom of the base plate.

[0014] Preferably, a support shaft is rotatably connected between the left and right sides of the inner wall of the installation groove, and the connecting seat is rotatably connected to the installation groove through the support shaft.

[0015] Preferably, a groove body adapted to the clamping ring is opened on one side of the clamping seat, and the outer side of the pull ring is wrapped with a sponge sleeve.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a core drilling clamp device with adaptive clamping force adjustment, which has the following beneficial effects:

[0018] 1. The core drilling clamp device with adaptive clamping force adjustment is provided with a clamping mechanism and a pushing mechanism. The clamping mechanism is opened, and the core is pushed to the left by the pushing mechanism, so that the core can be taken out for replacement. The rubber sleeve is installed inside the cylinder body, providing good elasticity and friction for clamping the core sample. The first plug is made to slide along the guide of the installation cover by rotating the rotating ring, thereby compressing the rubber sleeve to clamp the core sample. The adaptive clamping force adjustment is achieved by the elasticity of the rubber sleeve and the moving distance of the first plug. Core samples of different sizes can be adjusted. In order to obtain a suitable clamping force, the piston is movably installed in the sealing cover. When the piston is pushed by an external force, it will drive the second plug and the sealing ring to move together. The second plug is tightly fitted with the inner wall of the cylinder through the sealing ring to prevent fluid or rock chips from entering the cylinder. The rotating ring is controlled to move the first plug to the left and the first plug is removed. At this time, when the piston moves to the left, the second plug pushes the core sample on the inner side of the rubber sleeve to move to the left until the core sample is pushed out of the cylinder. After the core is removed, a new core can be put in for subsequent operations, thereby achieving the purpose of facilitating the replacement of the core.

[0019] 2. The core drilling clamp device with adaptive clamping force adjustment is provided with a supporting mechanism, an extension mechanism and a limiting mechanism. The extension mechanism can be stored and fixed by the setting of the limiting mechanism. The supporting mechanism provides stable support through the support plate, the column and the base plate. The connecting seat rotates in the installation groove so that the supporting cross plate can be flipped up and down, and one side is flipped upward for storage. When the position of the supporting cross plate in the extension mechanism needs to be fixed, the pull ring can be pulled to make the movable frame slide along the column and stretch the fixing spring. Then, the supporting cross plate is flipped upward to keep it in a vertical state, and the pull ring can be released. Under the pull of the contraction force of the fixing spring, the movable frame drives the clamping ring to move down and reset, and the clamping ring is clamped with the clamping seat, thereby fixing the position of the extension mechanism and achieving the purpose of facilitating the storage of the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the structure of the present invention;

[0021] Figure 2 It is a left-side structural stereogram of the present invention;

[0022] Figure 3 It is a sectional stereoscopic diagram of the local structure of the present invention;

[0023] Figure 4 It is a three-dimensional diagram of the local structure of the present invention;

[0024] Figure 5It is a rear exploded view of the local structure of the present invention.

[0025] In the figure: 1 cylinder, 2 clamping mechanism, 21 rubber sleeve, 22 mounting cover, 23 first plug, 24 rotating ring, 3 pushing mechanism, 31 blocking cover, 32 piston, 33 sealing ring, 34 second plug, 35 ring, 4 supporting mechanism, 41 support plate, 42 column, 43 bottom plate, 5 extension mechanism, 51 mounting groove, 52 connecting seat, 53 supporting cross plate, 54 clamping seat, 6 limiting mechanism, 61 mounting hole, 62 moving frame, 63 fixing spring, 64 clamping ring, 65 pulling ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-5 The present invention provides a technical solution: a core drilling clamp device with adaptive clamping force adjustment, comprising a cylinder 1, an inner top wall of the cylinder 1 is provided with a confining pressure liquid through hole, a clamping mechanism 2 extending to the inner side of the cylinder 1 is arranged on the left side of the cylinder 1, a pushing mechanism 3 extending to the inner side of the clamping mechanism 2 is arranged on the right side of the cylinder 1, a supporting mechanism 4 is arranged at the bottom of the cylinder 1, two extending mechanisms 5 are arranged on the inner side of the supporting mechanism 4 and extend to the front and rear sides thereof respectively, a limiting mechanism 6 extending to the outer side thereof is arranged on the inner side of the supporting mechanism 4, and the limiting mechanism 6 is connected to the rear extension mechanism 5.

[0028] The clamping mechanism 2 includes a rubber sleeve 21, and the rubber sleeve 21 is fixedly installed on the inner side of the cylinder 1. Under the protection of the rubber sleeve 21, the confining pressure liquid injected through the confining pressure liquid through hole will not contact the core, so the core can be taken out without extracting the confining pressure liquid. A mounting cover 22 is threadedly connected to the outer side of the left end of the cylinder 1, and a first plug 23 extending to the inner side of the rubber sleeve 21 and fitting with the inner wall thereof is slidably installed on the left side of the mounting cover 22, and a rotating ring 24 fitting with the left side of the mounting cover 22 is fixedly installed on the outer side of the first plug 23.

[0029] The pushing mechanism 3 includes a sealing cover 31, which is threadedly connected to the outer side of the right end of the cylinder 1, and a circular through hole is opened on the inner top wall of the sealing cover 31. A piston 32 located on the right side of the cylinder 1 is movably installed on the inner wall of the sealing cover 31, and a second plug 34 extending to the inner side of the rubber sleeve 21 and fitting therewith is slidably installed on the right side of the sealing cover 31, and a sealing ring 33 fitting therewith the inner wall of the cylinder 1 is fixedly installed on the outer side of the second plug 34, and the sealing ring 33 fits against the inner wall of the cylinder to enhance the sealing performance, the piston 32 is fixedly connected to the outer side of the second plug 34, and a ring 35 is fixedly installed on the right side of the second plug 34.

[0030] The supporting mechanism 4 comprises a supporting plate 41 . The supporting plate 41 is fixedly mounted on the bottom of the cylinder 1 . A column 42 is fixedly mounted on the bottom of the supporting plate 41 . A bottom plate 43 is fixedly mounted on the bottom of the column 43 .

[0031] The support plate 41 is designed to be arc-shaped, and an anti-skid pad is fixedly installed at the bottom of the bottom plate 43.

[0032] The extension mechanism 5 includes a mounting groove 51. The mounting grooves 51 are provided on both the front and rear sides of the bottom plate 43. The inner top wall of the mounting groove 51 is designed to be open. The inner side of the mounting groove 51 is rotatably connected to a connecting seat 52 extending to the outside thereof. A supporting cross plate 53 is fixedly installed on one side of the connecting seat 52. A clamping seat 54 is fixedly installed on the side of the supporting cross plate 53 close to the column 2.

[0033] A support shaft is rotatably connected between the left and right sides of the inner wall of the installation groove 51 , and the connecting seat 52 is rotatably connected to the installation groove 51 through the support shaft.

[0034] The limiting mechanism 6 includes a mounting hole 61. The interior of the column 42 is provided with a mounting hole 61. A moving frame 62 is slidably installed on the inner side of the mounting hole 61 and is sleeved on the outer side of the column 42. A fixing spring 63 fixedly connected to the inner bottom wall of the mounting hole 61 is fixedly installed on the bottom of the moving frame 62. The elastic coefficient of the fixing spring 63 can be set according to requirements. A snap ring 64 is fixedly installed on the front and rear sides of the moving frame 62. The snap ring 64 is set to limit the position of the clamping seat 54. A pull ring 65 with two ends extending to the left and right sides of the column 42 is fixedly installed on the top of the moving frame 62. The rear snap ring 64 is clamped with the rear clamping seat 54.

[0035] There are two limit holes inside the movable frame 62, four fixed springs 63, an anti-slip groove on the side of the supporting cross plate 53 away from the column 42, a groove body matched with the snap ring 64 is provided on one side of the base 54, and the outer side of the pull ring 65 is wrapped with a sponge cover, which provides a comfortable grip and facilitates user operation.

[0036] When in use, check whether all parts of the clamp device are intact, especially the easily worn parts such as the rubber sleeve 21, the sealing ring 33 and the moving frame 62. According to the drilling requirements, adjust the angle of the extension mechanism 5 to support the clamp device as a whole, put the core sample into the inner side of the rubber sleeve 21 of the cylinder 1, rotate the rotating ring 24, so that the first plug 23 moves to the right and thereby clamps the core sample. When the drilling operation is completed, the piston 32 is pushed to the left by an external power source, and the piston 32 drives the second plug 34 and the sealing ring 33 to move to the left together, pushing the core sample inside the rubber sleeve 21 to move to the left. After the core sample is pushed out of the cylinder 1, it can be collected and analyzed, the drilling equipment is turned off, the drilling operation is stopped, all parts of the clamp device are cleaned, the wear of all parts is checked, and damaged parts are replaced in time.

[0037] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] In summary, the core drilling clamp device with adaptive clamping force adjustment is provided with a clamping mechanism 2 and a pushing mechanism 3. The clamping mechanism 2 is opened, and the core is pushed to the left by the pushing mechanism 3, so that the core can be taken out for replacement. The rubber sleeve 21 is installed on the inner side of the cylinder 1, providing good elasticity and friction for clamping the core sample. The first plug 23 slides along the guide of the mounting cover 22 by rotating the rotating ring 24, thereby compressing the rubber sleeve 21 to clamp the core sample. The adaptive clamping force adjustment is achieved by the elasticity of the rubber sleeve and the moving distance of the first plug. Different sizes The core sample can obtain a suitable clamping force. The piston 32 is movably installed in the sealing cover 31. When the piston 32 is pushed by an external force, it will drive the second plug 34 and the sealing ring 33 to move together. The second plug 34 is tightly fitted with the inner wall of the cylinder 1 through the sealing ring 33 to prevent fluid or rock debris from entering the cylinder. The rotating ring 24 is controlled to make the first plug 23 move left, and the first plug 23 is removed. At this time, when the piston 32 moves to the left, the second plug 34 pushes the core sample inside the rubber sleeve 21 to move to the left until the core sample is pushed out of the cylinder 1. The core is taken out and a new core can be put in. The subsequent operation is carried out to facilitate the replacement of the core. The support mechanism 4, the extension mechanism 5 and the limiting mechanism 6 are provided. The extension mechanism 5 can be stored and fixed by the setting of the limiting mechanism 6. The support mechanism 4 provides stable support through the support plate 41, the column 42 and the bottom plate 43. The connecting seat 52 rotates in the installation groove 51, so that the supporting cross plate 53 can be turned upside down and turned upward for storage. When the position of the supporting cross plate 53 in the extension mechanism 5 needs to be fixed, the pull ring 65 can be pulled to make the moving frame 62 slide along the column 42 and stretch the fixing spring 63, and then the supporting cross plate is turned upward. 53 keeps it in a vertical state, and the pull ring 65 can be loosened. Under the pulling force of the fixed spring 63, the movable frame 62 drives the clamping ring 64 to move down and reset, and the clamping ring 64 is clamped with the clamping seat 54, so as to fix the position of the extension mechanism 5, so as to achieve the purpose of facilitating the storage of the support frame, and solve the problem that when replacing the core, the confining pressure fluid needs to be emptied, and the core is easily contaminated, and the time for replacing the core is very long and the operation is extremely inconvenient. In addition, the support frame at the bottom of the core drilling clamp device is mostly fixed, and the support frame cannot be stored, which makes the core clamp larger in size and inconvenient to carry the core clamp.

[0039] 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 elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0040] 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 drilling clamp device with adaptive clamping force adjustment, comprising a barrel (1), characterized in that: The left side of the cylinder (1) is provided with a clamping mechanism (2) extending to the inside thereof, the right side of the cylinder (1) is provided with a pushing mechanism (3) extending to the inside of the clamping mechanism (2), the bottom of the cylinder (1) is provided with a supporting mechanism (4), the inside of the supporting mechanism (4) is provided with two extending mechanisms (5) extending to the front and rear sides thereof respectively, the inside of the supporting mechanism (4) is provided with a limiting mechanism (6) extending to the outside thereof, and the limiting mechanism (6) is connected to the rear extension mechanism (5); The clamping mechanism (2) comprises a rubber sleeve (21), the inner side of the cylinder (1) is fixedly mounted with the rubber sleeve (21), the outer side of the left end of the cylinder (1) is threadedly connected with a mounting cover (22), the left side of the mounting cover (22) is slidably mounted with a first plug (23) extending to the inner side of the rubber sleeve (21) and abutting against the inner wall thereof, and the outer side of the first plug (23) is fixedly mounted with a rotating ring (24) abutting against the left side of the mounting cover (22).

2. A core drilling clamp device with adaptive clamping force adjustment according to claim 1, characterized in that: The pushing mechanism (3) comprises a blocking cover (31), the blocking cover (31) is threadedly connected to the outer side of the right end of the cylinder (1), a piston (32) located on the right side of the cylinder (1) is movably mounted on the inner wall of the blocking cover (31), a second plug (34) extending to the inner side of the rubber sleeve (21) and fitting therewith is slidably mounted on the right side of the blocking cover (31), a sealing ring (33) fitting therewith the inner wall of the cylinder (1) is fixedly mounted on the outer side of the second plug (34), the piston (32) is fixedly connected to the outer side of the second plug (34), and a circular ring (35) is fixedly mounted on the right side of the second plug (34).

3. A core drilling clamp device with adaptive clamping force adjustment according to claim 1, characterized in that: The supporting mechanism (4) comprises a supporting plate (41), the supporting plate (41) is fixedly mounted on the bottom of the cylinder (1), a column (42) is fixedly mounted on the bottom of the supporting plate (41), and a bottom plate (43) is fixedly mounted on the bottom of the column (43).

4. A core drilling clamp device with adaptive clamping force adjustment according to claim 3, characterized in that: The extension mechanism (5) comprises a mounting groove (51), the mounting grooves (51) are provided on both the front and rear sides of the bottom plate (43), the inner top wall of the mounting groove (51) is designed to be open, the inner side of the mounting groove (51) is rotatably connected to a connecting seat (52) extending to the outer side thereof, a supporting transverse plate (53) is fixedly installed on one side of the connecting seat (52), and a clamping seat (54) is fixedly installed on the side of the supporting transverse plate (53) close to the column (2).

5. A core drilling clamp device with adaptive clamping force adjustment according to claim 4, characterized in that: The limiting mechanism (6) comprises a mounting hole (61), the interior of the column (42) is provided with the mounting hole (61), a movable frame (62) sleeved on the outside of the column (42) is slidably mounted on the inner side of the mounting hole (61), a fixing spring (63) fixedly connected to the inner bottom wall of the mounting hole (61) is fixedly mounted on the bottom of the movable frame (62), a clamping ring (64) is fixedly mounted on both the front and rear sides of the movable frame (62), a pull ring (65) with two ends extending to the left and right sides of the column (42) is fixedly mounted on the top of the movable frame (62), and the clamping ring (64) on the rear side is clamped with the rear clamping seat (54).

6. A core drilling clamp device with adaptive clamping force adjustment according to claim 5, characterized in that: Two limiting holes are provided inside the movable frame (62), four fixing springs (63) are provided, and an anti-slip groove is provided on a side of the supporting horizontal plate (53) away from the upright column (42).

7. The core drilling clamp device with adaptive clamping force adjustment according to claim 3, characterized in that: The support plate (41) is designed to be arc-shaped, and an anti-slip pad is fixedly installed at the bottom of the base plate (43).

8. The core drilling clamp device with adaptive clamping force adjustment according to claim 4, characterized in that: A support shaft is rotatably connected between the left and right sides of the inner wall of the installation groove (51), and the connection seat (52) is rotatably connected to the installation groove (51) via the support shaft.

9. The core drilling clamp device with adaptive clamping force adjustment according to claim 5, characterized in that: A groove body adapted to the clamping ring (64) is provided on one side of the clamping seat (54), and a sponge sleeve is wrapped around the outer side of the pull ring (65).

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