CN215548389U - Laborsaving dismounting device of bolt for drilling equipment - Google Patents

Laborsaving dismounting device of bolt for drilling equipment Download PDF

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Publication number
CN215548389U
CN215548389U CN202122267434.6U CN202122267434U CN215548389U CN 215548389 U CN215548389 U CN 215548389U CN 202122267434 U CN202122267434 U CN 202122267434U CN 215548389 U CN215548389 U CN 215548389U
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fixedly connected
bolt
labor
dismounting device
drilling equipment
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CN202122267434.6U
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陈鹏
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Individual
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Individual
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Abstract

The utility model discloses a labor-saving bolt dismounting device for drilling equipment, which comprises a base, wherein two sides of the top of the base are fixedly connected with supporting rods, the top ends of the two supporting rods are fixedly connected with a same top plate, a same moving plate is slidably sleeved on the two supporting rods, the bottom of the moving plate is fixedly connected with an elastic pressing and fixing mechanism, the elastic pressing and fixing mechanism is sleeved on the two supporting rods, a first electric telescopic rod is embedded at the bottom of the top plate, and the bottom end of an output shaft of the first electric telescopic rod is fixedly connected with the top of the moving plate. The bolt sleeve dismounting device is convenient for realizing automatic pressing operation on equipment in the process of moving the bolt sleeve downwards, does not need manual pressing operation of personnel, is convenient for automatically rotating to dismount bolts, saves time and labor, reduces the risk of hurting hands, improves dismounting efficiency, can replace the bolt sleeve according to use requirements, is suitable for dismounting bolts of different models, and improves application range.

Description

Laborsaving dismounting device of bolt for drilling equipment
Technical Field
The utility model relates to the technical field of bolt dismounting equipment, in particular to a labor-saving bolt dismounting device for drilling equipment.
Background
The drilling equipment is numerous and complex, a plurality of drilling equipment are connected together through bolts, the equipment needs to disassemble connecting bolts during maintenance, the bolts are difficult to disassemble due to long-term use or erosion and abrasion, and most of the existing drilling equipment use manual wrenches or sledgehammers to manually knock the bolts for disassembling;
the mode of current manual dismantlement wastes time and energy, the in-process of dismantling appears the extracting tool easily and beats the risk that the hand was wounded in sliding, it is inefficient to dismantle, and do not possess the automation at the in-process of dismantling and press solid shortcoming to drilling equipment, the manual dismantlement of pressing of personnel that has now mostly, personnel are manual presses fixed mode, there is the risk of damaging the staff, can not satisfy the user demand, therefore we have proposed a laborsaving dismounting device of bolt for drilling equipment and have been used for solving above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art, and provides a labor-saving bolt dismounting device for drilling equipment.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a labor-saving bolt dismounting device for drilling equipment comprises a base, wherein two sides of the top of the base are fixedly connected with supporting rods, the top ends of the two supporting rods are fixedly connected with a same top plate, a same moving plate is sleeved on the two supporting rods in a sliding mode, the bottom of the moving plate is fixedly connected with an elastic pressing mechanism, the elastic pressing mechanism is sleeved on the two supporting rods, a first electric telescopic rod is embedded in the bottom of the top plate, the bottom end of an output shaft of the first electric telescopic rod is fixedly connected with the top of the moving plate, a first groove is formed in the bottom of the moving plate, a driving motor is installed on the inner wall of the top of the first groove in a sliding mode, a second electric telescopic rod is fixedly connected to the right side of the bottom of the moving plate, the left end of an output shaft of the second electric telescopic rod is fixedly connected with the right side of the driving motor, a bolt sleeve is arranged below the driving motor, and the top of the bolt sleeve and the bottom end of the output shaft of the driving motor are fixedly connected with a same fixing mechanism;
the fixing mechanism comprises a fixing block fixedly connected to the top of the bolt sleeve, an installation block is fixedly connected to the bottom end of an output shaft of the driving motor, the installation block is movably sleeved on the fixing block, a thread groove is formed in the right side of the fixing block, a T-shaped fixing bolt is sleeved in the thread groove in a threaded manner, the right side of the T-shaped fixing bolt extends to the right side of the installation block, and the installation block is sleeved on the T-shaped fixing bolt in a threaded manner.
Preferably, the elasticity is pressed solid mechanism and is included four locating levers, the top of locating lever and the bottom fixed connection of movable plate, the bottom fixedly connected with anticreep piece of locating lever, sliding sleeve is equipped with same shape frame of returning on four locating levers, it establishes on two bracing pieces to return the shape frame cover, return four springs of fixedly connected with between the top of shape frame and the bottom of movable plate, spring movable sleeve establishes on the locating lever that corresponds, return two connecting rods of the equal fixedly connected with in bottom front side and the bottom rear side of shape frame, it is equipped with two briquettings to return the below of shape frame, the top of briquetting and the bottom fixed connection of two connecting rods that correspond, the bottom bonding of briquetting is fixed with first anti-skidding rubber.
Preferably, a second anti-skid rubber sheet is fixedly bonded to the top of the base.
Preferably, the T-shaped sliding rail is fixedly connected to the inner wall of the top of the first groove, the sliding block is fixedly connected to the top of the driving motor, the T-shaped sliding groove with two sides being opened is formed in the top of the sliding block, and the T-shaped sliding rail is connected with the T-shaped sliding groove in a sliding mode.
Preferably, the top of the square-shaped frame is provided with four rectangular through holes in a rectangular shape, and the inner walls of the rectangular through holes are in sliding connection with the outer sides of the corresponding positioning rods.
Preferably, the top of the moving plate is provided with two first rectangular holes, and the inner walls of the first rectangular holes are in sliding connection with the outer sides of the corresponding support rods.
Preferably, the top of the top plate is provided with an embedded hole, and the inner wall of the embedded hole is fixedly connected with the outer side of the first electric telescopic rod.
Preferably, the bottom of the mounting block is provided with a slot, the inner wall of the slot is in movable contact with the outer side of the fixing block, the inner wall of the right side of the slot is provided with a threaded hole, and the threaded hole is in threaded connection with the T-shaped fixing bolt.
Compared with the prior art, the utility model has the beneficial effects that:
the device comprises a base, a top plate, a first electric telescopic rod, a movable plate, a clip frame, a positioning rod, a spring, a pressing block, a connecting rod, a first groove, a driving motor, a second electric telescopic rod, a supporting rod, an installation block, a bolt sleeve and a fixing block, wherein the fixing block is matched with a T-shaped fixing bolt, equipment needing to be disassembled with the bolt is placed on the base, then the transverse position of the bolt sleeve is adjusted according to the position of the disassembled bolt, the second electric telescopic rod is started forward or reversely to drive the driving motor to move leftwards and rightwards, the driving motor drives the bolt sleeve to move leftwards or rightwards through the installation block and the fixing block until the bolt sleeve is aligned with the bolt needing to be disassembled, the second electric telescopic rod is stopped, then the first electric telescopic rod is started forward to drive the movable plate to slide downwards on the two supporting rods, and the movable plate drives the bolt sleeve to move downwards through a sliding block, the driving motor, the installation block and the fixing block, the movable plate drives the clip frame to move downwards through the four springs, the clip frame drives the two pressing blocks and the first anti-skid rubber sheets on the pressing blocks to move downwards through the four connecting rods and contact with the top of the equipment, the pressing blocks and the clip frame are limited to move downwards continuously, the movable plate moves downwards continuously and compresses the four springs, the movable plate gives downward tightening elastic pressure to the clip frame through the four springs, the clip frame gives downward tightening pressure to the equipment through the four connecting rods and the two pressing blocks sequentially, therefore, automatic pressing operation on the equipment is realized in the process of moving the bolt sleeve downwards, the device is gradually sleeved on a bolt to be disassembled while the bolt sleeve moves downwards, then the driving motor and the first electric telescopic rod are reversely started, the output shaft of the driving motor drives the bolt sleeve to rotate through the mounting block and the fixing block sequentially, and the bolt sleeve drives the disassembled bolt to rotate, meanwhile, an output shaft of the first electric telescopic rod drives the movable plate to move upwards, the movable plate sequentially passes through the sliding block, the driving motor, the mounting block and the fixed block to drive the bolt sleeve to move upwards, so that the bolt sleeve drives the bolt to rotate and move upwards at the same time, and the disassembling operation of the bolt is realized;
when the bolt sleeve is replaced, the T-shaped fixing bolt is rotated in the forward direction to move out of the thread groove, the bolt sleeve can be moved downwards to drive the fixing block to move out of the slot downwards, the bolt sleeve moved upwards to replace drives the fixing block to move upwards to the slot, and the T-shaped fixing bolt is rotated in the reverse direction to move into the thread groove, so that the bolt sleeve is fixed and replacement is completed.
The bolt sleeve dismounting device is convenient for realizing automatic pressing operation on equipment in the process of moving the bolt sleeve downwards, does not need manual pressing operation of personnel, is convenient for automatically rotating to dismount bolts, saves time and labor, reduces the risk of hurting hands, improves dismounting efficiency, can replace the bolt sleeve according to use requirements, is suitable for dismounting bolts of different models, and improves application range.
Drawings
FIG. 1 is a schematic structural view of a labor-saving bolt dismounting device for drilling equipment according to the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
fig. 3 is an enlarged schematic view of a portion a in fig. 2.
In the figure: the device comprises a base 1, a top plate 2, a first electric telescopic rod 3, a movable plate 4, a 5-shaped frame, a 6 positioning rod, a 7 spring, a 8 pressing block, a 9 connecting rod, a 10 first groove, a 11 driving motor, a 12 second electric telescopic rod, a 13 supporting rod, a 14 mounting block, a 15 bolt sleeve, a 16 fixing block and a 17T-shaped fixing bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a labor-saving bolt dismounting device for a drilling device comprises a base 1, wherein two sides of the top of the base 1 are fixedly connected with supporting rods 13, the top ends of the two supporting rods 13 are fixedly connected with a same top plate 2, a same moving plate 4 is slidably sleeved on the two supporting rods 13, the bottom of the moving plate 4 is fixedly connected with an elastic pressing mechanism, the elastic pressing mechanism is sleeved on the two supporting rods 13, a first electric telescopic rod 3 is embedded at the bottom of the top plate 2, the bottom end of an output shaft of the first electric telescopic rod 3 is fixedly connected with the top of the moving plate 4, a first groove 10 is formed in the bottom of the moving plate 4, a driving motor 11 is slidably mounted on the inner wall of the top of the first groove 10, a second electric telescopic rod 12 is fixedly connected to the right side of the bottom of the moving plate 4, and the left end of an output shaft of the second electric telescopic rod 12 is fixedly connected with the right side of the driving motor 11, a bolt sleeve 15 is arranged below the driving motor 11, and the top of the bolt sleeve 15 and the bottom end of an output shaft of the driving motor 11 are fixedly connected with the same fixing mechanism;
the fixing mechanism comprises a fixing block 16 fixedly connected to the top of the bolt sleeve 15, the bottom end of an output shaft of the driving motor 11 is fixedly connected with an installation block 14, the installation block 14 is movably sleeved on the fixing block 16, a thread groove is formed in the right side of the fixing block 16, a T-shaped fixing bolt 17 is sleeved in the thread groove in a sleeved mode, the right side of the T-shaped fixing bolt 17 extends to the right side of the installation block 14, and the installation block 14 is sleeved on the T-shaped fixing bolt 17 in a threaded mode;
the elastic pressing and fixing mechanism comprises four positioning rods 6, the top ends of the positioning rods 6 are fixedly connected with the bottom of the movable plate 4, the bottom ends of the positioning rods 6 are fixedly connected with anti-falling blocks, the same clip-shaped frame 5 is sleeved on the four positioning rods 6 in a sliding manner, the clip-shaped frame 5 is sleeved on the two supporting rods 13, four springs 7 are fixedly connected between the top of the clip-shaped frame 5 and the bottom of the movable plate 4, the springs 7 are movably sleeved on the corresponding positioning rods 6, two connecting rods 9 are fixedly connected with the front side and the rear side of the bottom of the clip-shaped frame 5, two pressing blocks 8 are arranged below the clip-shaped frame 5, the top of each pressing block 8 is fixedly connected with the bottom ends of the corresponding two connecting rods 9, and a first anti-sliding rubber sheet is bonded and fixed to the bottom of each pressing block 8. Labour saving and time saving reduces the risk of bumping the hand, improves and dismantles efficiency, and can change bolt sleeve 15 as required, makes it can be applicable to and dismantles the bolt of different models, improves application scope.
In the utility model, a second anti-skid rubber is bonded and fixed on the top of a base 1, a T-shaped slide rail is fixedly connected on the inner wall of the top of a first groove 10, a slide block is fixedly connected on the top of a driving motor 11, a T-shaped slide groove with two opened sides is arranged on the top of the slide block, the T-shaped slide rail is connected with the T-shaped slide groove in a sliding way, four rectangular through holes are arranged on the top of a clip frame 5 in a rectangular shape, the inner walls of the rectangular through holes are connected with the outer sides of corresponding positioning rods 6 in a sliding way, two first rectangular holes are arranged on the top of a movable plate 4, the inner walls of the first rectangular holes are connected with the outer sides of corresponding supporting rods 13 in a sliding way, an embedding hole is arranged on the top of a top plate 2, the inner wall of the embedding hole is fixedly connected with the outer side of a first electric telescopic rod 3, an inserting groove is arranged at the bottom of an installing block 14, the inner wall of the inserting groove is in movable contact with the outer side of a fixed block 16, and a threaded hole is arranged on the inner wall on the right side of the inserting groove, the threaded hole is in threaded connection with the T-shaped fixing bolt 17, automatic pressing and fixing operation on equipment is conveniently achieved in the process of moving the bolt sleeve 15 downwards, manual pressing and fixing is not needed by personnel, automatic rotation is facilitated to detach the bolt, time and labor are saved, the risk of hurting the hand is reduced, detachment efficiency is improved, the bolt sleeve 15 can be replaced according to use requirements, the bolt sleeve can be suitable for detaching bolts of different models, and application range is improved.
The working principle is as follows: when the device is used, the device needing to disassemble the bolt is placed on the top of the second anti-skid rubber sheet on the base 1, then the transverse position of the bolt sleeve 15 is adjusted according to the position of the disassembled bolt, when the device is adjusted, the second electric telescopic rod 12 is started in the forward direction or the reverse direction, the output shaft of the second electric telescopic rod 12 drives the driving motor 11 to move leftwards and rightwards, the driving motor 11 drives the sliding block to slide on the T-shaped sliding rail, the output shaft of the driving motor 11 drives the mounting block 14 to move leftwards or rightwards, the mounting block 14 drives the bolt sleeve 15 to move leftwards or rightwards through the fixing block 16, when the bolt sleeve 15 moves leftwards or rightwards to align with the bolt needing to be disassembled, the second electric telescopic rod 12 is stopped, then the first electric telescopic rod 3 is started in the forward direction, the output shaft of the first electric telescopic rod 3 drives the movable plate 4 to slide downwards on the two support rods 13, and the movable plate 4 drives the driving motor 11 to move downwards through the sliding block, the driving motor 11 drives the bolt sleeve 15 to move downwards sequentially through the mounting block 14 and the fixing block 16, the movable plate 4 moves downwards and simultaneously drives the clip frame 5 to move downwards through the four springs 7, the clip frame 5 drives the two pressing blocks 8 to move downwards through the four connecting rods 9, the pressing blocks 8 drive the corresponding first anti-skid rubber to move downwards until the first anti-skid rubber contacts with the top of the equipment, the pressing blocks 8 and the clip frame 5 are limited to move downwards continuously, the movable plate 4 moves downwards continuously so as to drive the bolt sleeve 15 to move downwards continuously, the movable plate 4 drives the four positioning rods 6 to respectively slide downwards in the corresponding rectangular through holes, the four springs 7 are compressed when the movable plate 4 moves downwards, the clip frame 5 is tensioned with elastic pressure downwards by the four springs 7, and the clip frame 5 is tensioned with downward pressure by the four connecting rods 9 for the two pressing blocks 8, the two pressing blocks 8 provide downward pressure for the equipment, so that automatic pressing operation on the equipment is realized in the process of moving the bolt sleeve 15 downwards, manual pressing by personnel is not needed, and the risk of hurting hands is reduced;
and the bolt sleeve 15 is gradually sleeved on the bolt to be disassembled while moving downwards, then the driving motor 11 and the first electric telescopic rod 3 are reversely started, the output shaft of the driving motor 11 drives the mounting block 14 to rotate, the mounting block 14 drives the bolt sleeve 15 to rotate through the fixing block 16, the bolt sleeve 15 drives the disassembled bolt to rotate, so that the bolt rotates and moves upwards, the output shaft of the first electric telescopic rod 3 drives the moving plate 4 to move upwards, the moving plate 4 sequentially passes through the sliding block, the driving motor 11, the mounting block 14 and the fixing block 16 to drive the bolt sleeve 15 to move upwards, so that the bolt sleeve 15 drives the bolt to rotate and move upwards, thereby the disassembling operation of the bolt is realized, and partial pressure on the spring 7 can be released while the moving plate 4 moves upwards, so that the pressing block 8 releases partial pressing force on the equipment, at the moment, partial pressure exists on the equipment by the pressing block 8, so that the risk of equipment displacement cannot occur in the process of upward movement of the rotating bolt, the bolt can be conveniently and rapidly disassembled in an automatic rotating mode, time and labor are saved, manual operation and rotation of personnel are not needed, and the risk of hurting hands is reduced;
when the bolt sleeve 15 is replaced according to the type of the detachable bolt, the T-shaped fixing bolt 17 is rotated in the forward direction, the T-shaped fixing bolt 17 is moved out of the thread groove while rotating, fixing of the fixing block 16 is released, the bolt sleeve 15 can be moved downwards to drive the fixing block 16 to move downwards out of the slot at the moment, the fixing block 16 on the replaced bolt sleeve 15 is aligned with the slot, the bolt sleeve 15 is moved upwards to drive the fixing block 16 to move upwards into the slot, the T-shaped fixing bolt 17 is rotated in the reverse direction to enable the fixing block to move into the thread groove, the bolt sleeve 15 is fixed, replacement is completed, and the bolt sleeve 15 can be detached in different types and the application range is widened.
In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (8)

1. A labor-saving bolt dismounting device for drilling equipment comprises a base (1), wherein supporting rods (13) are fixedly connected to two sides of the top of the base (1), and a top end of each supporting rod (13) is fixedly connected with a top plate (2), and is characterized in that a same movable plate (4) is sleeved on the two supporting rods (13) in a sliding mode, an elastic pressing mechanism is fixedly connected to the bottom of the movable plate (4), the elastic pressing mechanism is sleeved on the two supporting rods (13), a first electric telescopic rod (3) is embedded into the bottom of the top plate (2), the bottom end of an output shaft of the first electric telescopic rod (3) is fixedly connected with the top of the movable plate (4), a first groove (10) is formed in the bottom of the movable plate (4), a driving motor (11) is installed on the inner wall of the top of the first groove (10) in a sliding mode, and a second electric telescopic rod (12) is fixedly connected to the right side of the bottom of the movable plate (4), the left end of an output shaft of the second electric telescopic rod (12) is fixedly connected with the right side of the driving motor (11), a bolt sleeve (15) is arranged below the driving motor (11), and the top of the bolt sleeve (15) and the bottom end of the output shaft of the driving motor (11) are fixedly connected with the same fixing mechanism;
fixed establishment includes fixed block (16) of fixed connection at bolt sleeve (15) top, the output shaft bottom fixedly connected with installation piece (14) of driving motor (11), installation piece (14) movable sleeve is established on fixed block (16), the thread groove has been seted up on the right side of fixed block (16), thread groove internal thread cover is equipped with T shape fixing bolt (17), the right side of T shape fixing bolt (17) extends to the right side of installation piece (14), installation piece (14) thread sleeve is established on T shape fixing bolt (17).
2. The labor-saving bolt dismounting device for drilling equipment according to claim 1, wherein the elastic pressing mechanism comprises four positioning rods (6), the top ends of the positioning rods (6) are fixedly connected with the bottom of the movable plate (4), the bottom ends of the positioning rods (6) are fixedly connected with anti-falling blocks, the four positioning rods (6) are slidably sleeved with the same clip-shaped frame (5), the clip-shaped frame (5) is sleeved on the two support rods (13), four springs (7) are fixedly connected between the top of the clip-shaped frame (5) and the bottom of the movable plate (4), the springs (7) are movably sleeved on the corresponding positioning rods (6), two connecting rods (9) are fixedly connected to the front side and the rear side of the bottom of the clip-shaped frame (5), two pressing blocks (8) are arranged below the clip-shaped frame (5), the top of each pressing block (8) is fixedly connected with the bottom ends of the corresponding two connecting rods (9), the bottom of the pressing block (8) is fixedly bonded with a first anti-skid rubber sheet.
3. The labor-saving bolt dismounting device for drilling equipment as claimed in claim 1, wherein a second anti-slip rubber sheet is fixedly bonded to the top of the base (1).
4. The labor-saving bolt dismounting device for drilling equipment as claimed in claim 1, wherein a T-shaped slide rail is fixedly connected to the inner wall of the top of the first groove (10), a slide block is fixedly connected to the top of the driving motor (11), a T-shaped slide groove with openings on both sides is formed in the top of the slide block, and the T-shaped slide rail is slidably connected with the T-shaped slide groove.
5. The labor-saving bolt dismounting device for drilling equipment as claimed in claim 2, wherein the top of the square frame (5) is rectangular and is provided with four rectangular through holes, and the inner walls of the rectangular through holes are slidably connected with the outer sides of the corresponding positioning rods (6).
6. The labor-saving bolt dismounting device for drilling equipment as claimed in claim 1, wherein the top of the moving plate (4) is provided with two first rectangular holes, and the inner walls of the first rectangular holes are slidably connected with the outer sides of the corresponding support rods (13).
7. The labor-saving bolt dismounting device for the drilling equipment as claimed in claim 1, characterized in that the top of the top plate (2) is provided with an embedded hole, and the inner wall of the embedded hole is fixedly connected with the outer side of the first electric telescopic rod (3).
8. The labor-saving bolt dismounting device for the drilling equipment as claimed in claim 1, characterized in that the bottom of the mounting block (14) is provided with a slot, the inner wall of the slot is movably contacted with the outer side of the fixing block (16), the inner wall of the right side of the slot is provided with a threaded hole, and the threaded hole is in threaded connection with the T-shaped fixing bolt (17).
CN202122267434.6U 2021-09-18 2021-09-18 Laborsaving dismounting device of bolt for drilling equipment Active CN215548389U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122267434.6U CN215548389U (en) 2021-09-18 2021-09-18 Laborsaving dismounting device of bolt for drilling equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122267434.6U CN215548389U (en) 2021-09-18 2021-09-18 Laborsaving dismounting device of bolt for drilling equipment

Publications (1)

Publication Number Publication Date
CN215548389U true CN215548389U (en) 2022-01-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122267434.6U Active CN215548389U (en) 2021-09-18 2021-09-18 Laborsaving dismounting device of bolt for drilling equipment

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114918877A (en) * 2022-05-23 2022-08-19 国网河北省电力有限公司雄安新区供电公司 Multifunctional bolt fastening and dismounting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114918877A (en) * 2022-05-23 2022-08-19 国网河北省电力有限公司雄安新区供电公司 Multifunctional bolt fastening and dismounting device

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