CN112496726A - Hand-held type nut pretension equipment is used in building site - Google Patents

Hand-held type nut pretension equipment is used in building site Download PDF

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Publication number
CN112496726A
CN112496726A CN202011296271.8A CN202011296271A CN112496726A CN 112496726 A CN112496726 A CN 112496726A CN 202011296271 A CN202011296271 A CN 202011296271A CN 112496726 A CN112496726 A CN 112496726A
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CN
China
Prior art keywords
rotating shaft
wheel
rod
spring
sliding
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Pending
Application number
CN202011296271.8A
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Chinese (zh)
Inventor
黄艳
Original Assignee
黄艳
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Filing date
Publication date
Application filed by 黄艳 filed Critical 黄艳
Priority to CN202011296271.8A priority Critical patent/CN112496726A/en
Publication of CN112496726A publication Critical patent/CN112496726A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/06Screw or nut setting or loosening machines

Abstract

The invention relates to nut pre-tightening equipment, in particular to handheld nut pre-tightening equipment for a construction site. The invention aims to provide handheld nut pre-tightening equipment for a construction site, which is convenient to carry, can automatically perform pre-tightening and is simple to operate. A hand-held nut pre-tightening device for a construction site comprises: a frame; the handle is arranged on one side of the frame; the driving mechanism is arranged on the other side of the frame; the rotating mechanism is arranged at the upper part of one side of the rack; the chuck is arranged at the lower part of one side of the frame. The invention has the beneficial effects that: under the effect of actuating mechanism and rotary mechanism, the nut that needs the pretension is carried to the chuck, when people anticlockwise rotation handle to drive rotary mechanism and rotate, rotary mechanism can drive the chuck and rotate, thereby accomplishes the pretension with the nut automatically, effectual improvement people's work efficiency, and convenient operation.

Description

Hand-held type nut pretension equipment is used in building site
Technical Field
The invention relates to nut pre-tightening equipment, in particular to handheld nut pre-tightening equipment for a construction site.
Background
The nut is a nut and is screwed together with a bolt or a screw rod to play a role in fastening, one element which is necessary for all production and manufacturing machines is different according to materials, the nut is a part for tightly connecting mechanical equipment, and the nut and the bolt can be connected together only by the threads on the inner side and the same specification.
At present, large nuts are generally used in construction sites, and when people tighten the nuts, the nuts are basically screwed by rotating a spanner, which is the most common method for pre-tightening bolts. However, because the friction coefficient is unstable and the pretightening force accuracy is poor, the working efficiency of people is reduced, and if the number of nuts needing pretightening is large, the situation of wasting time and labor is caused.
Therefore, it is particularly desirable to design a handheld nut pre-tightening device for a construction site, which is convenient to carry, can automatically perform pre-tightening and is simple to operate, and can eliminate some troubles possibly caused by most manual operations, so as to improve the working efficiency and solve the above disadvantages.
Disclosure of Invention
In order to overcome the defects that the friction coefficient of a spanner for screwing a nut is unstable, the accuracy of pretightening force is poor, the working efficiency of people is reduced, and if the number of nuts needing to be pretightened is large, time and labor are wasted, the invention has the technical problems that: the handheld nut pre-tightening equipment for the construction site is convenient to carry, capable of automatically pre-tightening and simple to operate.
The technical implementation scheme of the invention is as follows: a hand-held nut pre-tightening device for a construction site comprises: a frame; the handle is arranged on one side of the frame; the driving mechanism is arranged on the other side of the frame; the rotating mechanism is arranged at the upper part of one side of the rack; the chuck is arranged at the lower part of one side of the frame.
Optionally, the driving mechanism comprises: the first rotating shaft is rotatably arranged on one side of the rack; the first ratchet wheel is rotatably arranged inside the upper side of the first rotating shaft; the handle is arranged at the top of the first ratchet wheel; the first driving wheel is arranged in the middle of the first rotating shaft; the second rotating shaft is rotatably arranged in the middle of the frame; the second driving wheel is arranged on the upper side of the second rotating shaft; the first belt is wound on the first transmission wheel and the second transmission wheel; the third driving wheel is arranged at the bottom of the second rotating shaft; the third rotating shaft is arranged at the top of the first rotating shaft; the first clamping block is rotatably arranged on the third rotating shaft and is matched with the first ratchet wheel; the first spring is connected between the first clamping block and the third rotating shaft, and the first spring is sleeved on the third rotating shaft.
Optionally, the rotation mechanism comprises: the mounting rack is rotatably arranged on the lower side of the second rotating shaft; the fourth rotating shaft is rotatably arranged on one side of the mounting frame; four marbles are arranged, and the marbles are arranged around the lower part of the fourth rotating shaft in a sliding manner; and the second springs are connected between the marbles and the chucks.
Optionally, still include reciprocal pulling mechanism, reciprocal pulling mechanism includes: the outer cover is arranged on the other side of the rack and is rotatably connected with the first ratchet wheel; the pull rope turntable is rotatably arranged in the outer cover; the second ratchet wheel is connected to the bottom of the pull rope turntable; the pull rope guide sleeve is arranged at the other part of the pull rope turntable; the first pull rod is arranged in the pull rope guide sleeve in a sliding manner; the rope is connected between the first clamping block and the pull rope rotating disc; the spring is connected between the inner side of the pull rope turntable and the first rotating shaft; the fifth rotating shaft is connected to the first driving wheel on one side; the second clamping block is rotatably arranged on the fifth rotating shaft and matched with the second ratchet wheel; and the third spring is connected between the second clamping block and the fifth rotating shaft.
Optionally, still include and push down the mechanism, push down the mechanism and include: the push rod is arranged on one side of the mounting frame in a sliding mode, the push rod is sleeved on the outer side of the fourth rotating shaft, and a groove is formed in the other side of the push rod; the fourth transmission wheel is arranged at the top of the second rotating shaft; the sixth rotating shaft is rotatably arranged on one side of the frame; the fifth driving wheel is arranged at the top of the sixth rotating shaft; the second belt is wound on the fourth transmission wheel and the fifth transmission wheel; the worm is arranged in the middle of the sixth rotating shaft; the bracket is arranged on one side of the mounting rack; the worm wheel, the turbine rotary type sets up on the support, intermeshing between worm and the turbine right side, mutually supports between turbine left side and the recess.
Optionally, still including canceling release mechanical system, canceling release mechanical system includes: the sliding rod is arranged at one part of the mounting frame in a sliding manner, and the upper part of the sliding rod is fixedly connected with the push rod; the fourth spring is connected between the mounting frame and the sliding rod and sleeved on the sliding rod; the first guide rods are arranged on two sides of the lower part of the left side of the mounting rack in a sliding manner; the first connecting block is connected between the two sides of the first guide rod; the sliding rod is connected between the first connecting blocks on the two sides and is in sliding fit with the mounting frame; fifth springs are symmetrically connected between the first connecting block on one side and the mounting frame and are sleeved on the first guide rods; the first sliding block is arranged at the lower part of one side of the push rod; and the second sliding block is arranged on the upper part of the other side of the push rod.
Optionally, the method further includes: the second connecting block is arranged at the bottom of the mounting frame; the bolt connecting frame is connected to the bottom of the second connecting block through threads; the number of the rotating rods is three, and the rotating rods are hinged to the bottom of the bolt connecting frame; the telescopic link, the rotary rod bottom all slidingtype is equipped with the telescopic link.
Optionally, the fifth spring is a compression spring.
The beneficial effects are that:
1. under the effect of actuating mechanism and rotary mechanism, the nut that needs the pretension is carried to the chuck, when people anticlockwise rotation handle to drive rotary mechanism and rotate, rotary mechanism can drive the chuck and rotate, thereby accomplishes the pretension with the nut automatically, effectual improvement people's work efficiency, and convenient operation.
2. Under the effect of reciprocal pulling mechanism, so people only need constantly to stimulate first pull rod and loosen and can make first drive wheel constantly anticlockwise rotate for people need not rotate the handle always, have made things convenient for people's operation.
3. Under the effect of pushing down the mechanism and canceling release mechanical system, when the push rod moves down, the slide bar also can move down thereupon to make turbine and push rod cooperation, make the pretension work of nut more high-efficient.
4. Under the action of the supporting mechanism, the rotating rod is moved outwards, and the telescopic rod is drawn out, so that the device can be fixed on the ground.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the driving mechanism of the present invention.
Fig. 3 is an enlarged schematic view of the three-dimensional structure of the driving mechanism a of the present invention.
Fig. 4 is a schematic perspective view of a portion of the rotatable mechanism and the replaceable cartridge of the present invention.
Fig. 5 is a schematic perspective view of a portion of the reciprocating pulling mechanism and the driving mechanism of the present invention.
Fig. 6 is a schematic perspective view of a portion of the pressing mechanism of the present invention.
Fig. 7 is a schematic perspective view of the reset mechanism of the present invention.
Fig. 8 is an enlarged schematic view of the three-dimensional structure of the reset mechanism B of the present invention.
Fig. 9 is a schematic perspective view of the supporting mechanism of the present invention.
Number designation in the figures: 1. a frame, 2, a handle, 3, a driving mechanism, 31, a first rotating shaft, 32, a first ratchet wheel, 33, a handle, 34, a first driving wheel, 35, a first belt, 36, a second driving wheel, 37, a second rotating shaft, 38, a third driving wheel, 39, a third rotating shaft, 310, a first spring, 311, a first block, 4, a rotating mechanism, 41, a mounting frame, 42, a fourth rotating shaft, 43, a second spring, 44, a marble, 5, a chuck, 6, a reciprocating pulling mechanism, 61, a second ratchet wheel, 62, a rope turntable, 63, a rope, 64, a clockwork spring, 65, a fifth rotating shaft, 66, a third spring, 67, a second block, 68, a housing, 69, a rope guide sleeve, 610, a first pull rod, 7, a pressing mechanism, 71, a push rod, 72, a fourth driving wheel, 73, a sixth rotating shaft, 74, a fifth driving wheel, 75, a second belt, 76, a worm support, 77, 78. the worm wheel, 8, the reset mechanism, 81, the sliding rod, 82, the fourth spring, 83, the first connecting block, 84, the sliding rod, 85, the first guide rod, 86, the fifth spring, 87, the first sliding block, 88, the second sliding block, 9, the supporting mechanism, 91, the second connecting block, 92, the bolt connecting frame, 93, the rotating rod, 94 and the telescopic rod.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present application. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
Example 1
A handheld nut pre-tightening device for a construction site is shown in figure 1 and comprises a rack 1, a handle 2, a driving mechanism 3, a rotating mechanism 4 and a chuck 5, wherein the handle 2 is arranged on the front side of the rack 1, the driving mechanism 3 is arranged on the right side of the rack 1, the rotating mechanism 4 is arranged on the upper portion of the left side of the rack 1, and the chuck 5 is arranged on the lower portion of the left side of the rack 1.
People hold the handle 2 by hands to align the equipment with a nut to be pre-tightened, the chuck 5 is placed on the nut, the driving mechanism 3 is rotated by hands, the driving mechanism 3 can drive the rotating mechanism 4 to rotate, the rotating mechanism 4 can drive the chuck 5 to rotate, and therefore the nut is pre-tightened.
Example 2
In addition to the embodiment 1, as shown in fig. 2, 3, 4, 5, 8 and 9, the driving mechanism 3 includes a first rotating shaft 31, a first ratchet wheel 32, a handle 33, a first driving wheel 34, a first belt 35, a second driving wheel 36, a second rotating shaft 37, a third driving wheel 38, a third rotating shaft 39, a first spring 310 and a first latch 311, the frame 1 is rotatably provided with the first rotating shaft 31 at the right side, the first ratchet wheel 32 is rotatably provided inside the upper side of the first rotating shaft 31, the handle 33 is provided at the top of the first ratchet wheel 32, the first driving wheel 34 is provided at the middle part of the first rotating shaft 31, the second rotating shaft 37 is rotatably provided at the middle part of the frame 1, the second driving wheel 36 is provided at the upper side of the second rotating shaft 37, the first belt 35 is wound on the first driving wheel 34 and the second driving wheel 36, the third driving wheel 38 is provided at the bottom of the second rotating shaft 37, the third rotating shaft 39 is provided at the top, the third rotating shaft 39 is rotatably provided with a first latch 311, the first latch 311 is matched with the first ratchet 32, a first spring 310 is connected between the first latch 311 and the third rotating shaft 39, and the first spring 310 is sleeved on the third rotating shaft 39.
When people rotate the handle 33 counterclockwise, the handle 33 drives the first counterclockwise ratchet wheel 32 to rotate, at this time, when the first ratchet wheel 32 is matched with the first clamping block 311, the first ratchet wheel 32 drives the first rotating shaft 31 to rotate counterclockwise through the first clamping block 311 and the third rotating shaft 39, the first rotating shaft 31 drives the first driving wheel 34 to rotate, the first driving wheel 34 drives the first belt 35 to rotate, the first belt 35 drives the second driving wheel 36 to rotate, the second driving wheel 36 drives the second rotating shaft 37 to rotate, the second rotating shaft 37 drives the third driving wheel 38 to rotate, thereby driving the rotating mechanism 4 to rotate, when people rotate the handle 33 clockwise, under the action of the first spring 310, the first ratchet wheel 32 cannot drive the first rotating shaft 31 to rotate.
The rotating mechanism 4 comprises an installation frame 41, a fourth rotating shaft 42, a second spring 43 and a marble 44, the installation frame 41 is rotatably arranged on the lower side of the second rotating shaft 37, the fourth rotating shaft 42 is rotatably arranged on the left side of the installation frame 41, the marble 44 is slidably arranged around the lower portion of the fourth rotating shaft 42, and the second spring 43 is connected between the marble 44 and the chuck 5.
When the third driving wheel 38 rotates, the fourth rotating shaft 42 is driven to rotate clockwise, the fourth rotating shaft 42 drives the chuck 5 to rotate, when the chuck 5 clamps the nut to be pre-tightened, the nut drives the marble 44 to move outwards, the second spring 43 is compressed, when the pre-tightening operation is completed, the device is pulled out upwards, and due to the reset effect of the second spring 43, the marble 44 is reset, so that the next nut is continuously pre-tightened.
Example 3
On the basis of embodiment 2, as shown in fig. 5, 6, 7, 8 and 9, the reciprocating pulling device 6 is further included, the reciprocating pulling device 6 includes a second ratchet wheel 61, a rope turntable 62, a rope 63, a clockwork spring 64, a fifth rotating shaft 65, a third spring 66, a second latch 67, an outer cover 68, a rope guide sleeve 69 and a first pull rod 610, the outer cover 68 is disposed on the right side of the frame 1, the outer cover 68 is rotatably connected with the first ratchet wheel 32, the rope turntable 62 is rotatably disposed in the outer cover 68, the second ratchet wheel 61 is connected to the bottom of the rope turntable 62, the rope guide sleeve 69 is mounted on the right portion of the rope turntable 62, the first pull rod 610 is slidably disposed in the rope guide sleeve 69, the rope 63 is connected between the first latch 311 and the rope turntable 62, the clockwork spring 64 is connected between the inner side of the rope turntable 62 and the first rotating shaft 31, the fifth rotating shaft 65 is connected to the first driving wheel, the fifth rotating shaft 65 is rotatably provided with a second latch 67, the second latch 67 is matched with the second ratchet wheel 61, and a third spring 66 is connected between the second latch 67 and the fifth rotating shaft 65.
When people draw first pull rod 610 outward with the hand, first pull rod 610 can drive rope 63 and outwards remove, rope 63 can drive stay cord carousel 62 anticlockwise rotation, stay cord carousel 62 can drive second ratchet 61 anticlockwise rotation, because second ratchet 61 and the cooperation of second fixture block 67, so can drive first drive wheel 34 anticlockwise rotation, can drive clockwork spring 64 polymerization when stay cord carousel 62 rotates, when people loosen first pull rod 610, under clockwork spring 64's reset action, can make rope 63 tighten up around on stay cord carousel 62, stay cord carousel 62 can drive second ratchet 61 clockwise rotation, under the effect of third spring 66, first drive wheel 34 can not rotate, so people only need constantly stimulate first pull rod 610 and loosen and can make first drive wheel 34 constantly anticlockwise rotation.
The pressing mechanism 7 comprises a push rod 71, a fourth transmission wheel 72, a sixth rotating shaft 73, a fifth transmission wheel 74, a second belt 75, a support 76, a worm 77 and a worm wheel 78, the push rod 71 is slidably arranged on the left side of the mounting frame 41, the push rod 71 is sleeved on the outer side of the fourth rotating shaft 42, a groove is formed in the right side of the push rod 71, the fourth transmission wheel 72 is arranged at the top of the second rotating shaft 37, the sixth rotating shaft 73 is rotatably arranged on the front side of the rack 1, the fifth transmission wheel 74 is arranged at the top of the sixth rotating shaft 73, the second belt 75 is wound on the fourth transmission wheel 72 and the fifth transmission wheel 74, the worm 77 is arranged in the middle of the sixth rotating shaft 73, the support 76 is arranged on the left side of the mounting frame 41, the worm wheel 78 is rotatably arranged on the support 76, the worm 77 is meshed with the right side.
When the second rotating shaft 37 rotates, the fourth driving wheel 72 is driven to rotate, the fourth driving wheel 72 drives the second belt 75 to rotate, the second belt 75 drives the fifth driving wheel 74 to rotate, the fifth driving wheel 74 drives the sixth rotating shaft 73 to rotate, the sixth rotating shaft 73 drives the worm 77 to rotate, the worm 77 drives the worm wheel 78 to rotate, the worm wheel 78 is matched with the push rod 71 and drives the push rod 71 to move downwards, so that the fourth rotating shaft 42 and the chuck 5 are driven to move downwards, and the nut is fixed.
The device also comprises a reset mechanism 8, the reset mechanism 8 comprises a sliding rod 81, a fourth spring 82, a first connecting block 83, a sliding rod 84, a first guide rod 85, a fifth spring 86, a first sliding block 87 and a second sliding block 88, the sliding rod 81 is arranged at the left part of the mounting frame 41 in a sliding manner, the upper part of the sliding rod 81 is fixedly connected with the push rod 71, the fourth spring 82 is connected between the mounting frame 41 and the sliding rod 81, the fourth spring 82 is sleeved on the sliding rod 81, the first guide rod 85 is symmetrically arranged at the left lower part of the mounting frame 41 in a sliding manner, the first connecting block 83 is connected between the left side and the right side of the first guide rod 85, the sliding rod 84 is connected between the first connecting blocks 83 at the two sides, the sliding rod 84 is in sliding fit with the mounting frame 41, the fifth spring 86 is symmetrically connected between the first connecting block 83 at the front side and the mounting frame 41, the fifth spring 86 is sleeved on the first guide rod 85, the first, the upper part of the rear side of the push rod 71 is provided with a second slide block 88.
When the push rod 71 moves downwards, the sliding rod 81 will also move downwards along with the push rod, the fourth spring 82 is compressed, the push rod 71 will drive the first sliding block 87 and the second sliding block 88 to move downwards, the first sliding block 87 will first cooperate with the sliding slot on the right side of the mounting frame 41, when the first slider 87 is not engaged with the mounting bracket 41, the second slider 88 is engaged with the sliding groove on the right side of the mounting bracket 41, thereby driving the push rod 71 to rotate clockwise a little, the mounting bracket 41 will drive the first connecting block 83, the first guiding rod 85 and the sliding rod 84 to move backward, the fifth spring 86 is compressed, under the action of the return of the fourth spring 82, the push rod 71 moves upward, the first slider 87 moves upward along the sliding slot on the left side of the mounting bracket 41, and when the first slider 87 is not engaged with the mounting bracket 41, due to the return action of the fifth spring 86, the push rod 71 is rotated counterclockwise to return, so that the worm wheel 78 continues to engage with the push rod 71.
Still including supporting mechanism 9, supporting mechanism 9 is equipped with second connecting block 91 including second connecting block 91, bolted connection frame 92, rotary rod 93 and telescopic link 94 bottom mounting bracket 41, and there is bolted connection frame 92 second connecting block 91 bottom through threaded connection, and bolted connection frame 92 bottom articulates there is three rotary rod 93, and rotary rod 93 bottom all slidingtype is equipped with telescopic link 94.
When people sleeve the bolt connecting frame 92 in the second connecting block 91, the rotating rod 93 moves outwards, and the telescopic rod 94 is drawn out, so that the device can be fixed on the ground.
The above description is only an example of the present invention and is not intended to limit the present invention. All equivalents which come within the spirit of the invention are therefore intended to be embraced therein. Details not described herein are well within the skill of those in the art.

Claims (8)

1. The utility model provides a building site is with hand-held type nut pretension equipment which characterized in that, including:
a frame (1);
the handle (2), the handle (2) is arranged on one side of the frame (1);
the driving mechanism (3), the driving mechanism (3) is arranged on the other side of the frame (1);
the rotating mechanism (4), the rotating mechanism (4) is arranged on the upper part of one side of the rack (1);
the clamping head (5) is arranged at the lower part of one side of the rack (1).
2. A hand-held nut-pretensioning device for a construction site according to claim 1, characterized in that the drive mechanism (3) comprises:
the first rotating shaft (31), the first rotating shaft (31) is rotatably arranged on one side of the rack (1);
the first ratchet wheel (32), the first ratchet wheel (32) is set up in the upside inside of the first spindle (31) rotatably;
the handle (33), the handle (33) is arranged on the top of the first ratchet wheel (32);
the first transmission wheel (34), the first transmission wheel (34) is arranged in the middle of the first rotating shaft (31);
the second rotating shaft (37), the second rotating shaft (37) is rotatably arranged in the middle of the rack (1);
the second transmission wheel (36), the second transmission wheel (36) is set up in the upside of the second spindle (37);
a first belt (35), the first belt (35) being wound around the first transmission wheel (34) and the second transmission wheel (36);
the third transmission wheel (38), the third transmission wheel (38) is set up in the bottom of the second spindle (37);
the third rotating shaft (39), the third rotating shaft (39) is arranged on the top of the first rotating shaft (31);
the first clamping block (311) is rotatably arranged on the third rotating shaft (39), and the first clamping block (311) is matched with the first ratchet wheel (32);
the first spring (310) is connected between the first clamping block (311) and the third rotating shaft (39), and the first spring (310) is sleeved on the third rotating shaft (39).
3. A hand-held nut pretensioning apparatus for a worksite according to claim 2, characterized in that the rotation mechanism (4) comprises:
the mounting rack (41), the mounting rack (41) is rotatably arranged at the lower side of the second rotating shaft (37);
the fourth rotating shaft (42), the fourth rotating shaft (42) is rotatably arranged on one side of the mounting rack (41);
the number of the marbles (44) is four, and the marbles (44) are arranged around the lower part of the fourth rotating shaft (42) in a sliding manner;
and a second spring (43) is connected between the marble (44) and the chuck (5).
4. A hand-held nut-tightening device for a construction site according to claim 3, further comprising a reciprocating pulling mechanism (6), wherein the reciprocating pulling mechanism (6) comprises:
the outer cover (68), the outer cover (68) is arranged on the other side of the rack (1), and the outer cover (68) is rotatably connected with the first ratchet wheel (32);
the pull rope turntable (62), the pull rope turntable (62) is rotatably arranged in the outer cover (68);
the second ratchet wheel (61), the second ratchet wheel (61) is connected to the bottom of the pull rope turntable (62);
the pull rope guide sleeve (69), the pull rope guide sleeve (69) is installed at the other part of the pull rope turntable (62);
the first pull rod (610), the first pull rod (610) is arranged in the pull rope guide sleeve (69) in a sliding mode;
the rope (63), the rope (63) is connected between the first clamping block (311) and the pull rope rotating disc (62);
the clockwork spring (64), the clockwork spring (64) is connected between the inner side of the rope pulling turntable (62) and the first rotating shaft (31);
the fifth rotating shaft (65), the fifth rotating shaft (65) is connected to the first driving wheel (34) on one side;
the second fixture block (67) is rotatably arranged on the fifth rotating shaft (65), and the second fixture block (67) is matched with the second ratchet wheel (61);
and the third spring (66), and the third spring (66) is connected between the second clamping block (67) and the fifth rotating shaft (65).
5. A hand-held nut-pretensioning device for construction sites according to claim 4, characterized in that it further comprises a press-down mechanism (7), the press-down mechanism (7) comprising:
the push rod (71), the push rod (71) is arranged on one side of the mounting frame (41) in a sliding mode, the push rod (71) is sleeved on the outer side of the fourth rotating shaft (42), and a groove is formed in the other side of the push rod (71);
the fourth transmission wheel (72), the fourth transmission wheel (72) is set up in the top of the second spindle (37);
the sixth rotating shaft (73), the sixth rotating shaft (73) is rotatably arranged on one side of the rack (1);
the fifth driving wheel (74), the fifth driving wheel (74) is arranged on the top of the sixth rotating shaft (73);
a second belt (75), the second belt (75) is wound on the fourth driving wheel (72) and the fifth driving wheel (74);
the worm (77), the worm (77) is arranged in the middle of the sixth rotating shaft (73);
the bracket (76), the bracket (76) is set up in one side of the mounting bracket (41);
the worm wheel (78), worm wheel (78) rotary type sets up on support (76), and worm (77) and worm wheel (78) right side are intermeshing, and worm wheel (78) left side and recess are mutually supported.
6. A hand-held nut pretensioning apparatus for a worksite according to claim 5, further comprising a return mechanism (8), the return mechanism (8) comprising:
the sliding rod (81), the sliding rod (81) is arranged at one part of the mounting rack (41) in a sliding manner, and the upper part of the sliding rod (81) is fixedly connected with the push rod (71);
the fourth spring (82), the fourth spring (82) is connected between the mounting frame (41) and the sliding rod (81), and the fourth spring (82) is sleeved on the sliding rod (81);
the first guide rods (85) are arranged on two sides of the lower portion of the left side of the mounting frame (41) in a sliding mode;
the first connecting block (83) is connected between the two sides of the first guide rod (85);
the sliding rod (84), the sliding rod (84) is connected between the first connecting blocks (83) at the two sides, and the sliding rod (84) is in sliding fit with the mounting frame (41);
fifth springs (86) are symmetrically connected between the first connecting block (83) on one side and the mounting frame (41), and the fifth springs (86) are sleeved on the first guide rod (85);
the first sliding block (87), the first sliding block (87) is arranged at the lower part of one side of the push rod (71);
and the second sliding block (88), wherein the second sliding block (88) is arranged at the upper part of the other side of the push rod (71).
7. A hand-held nut-pretensioning device for a construction site according to claim 6, characterized in that it further comprises a support means (9), the support means (9) comprising:
the second connecting block (91), the second connecting block (91) is arranged at the bottom of the mounting frame (41);
the bolt connecting frame (92), the bolt connecting frame (92) is connected to the bottom of the second connecting block (91) through threads;
the number of the rotating rods (93) is three, and the rotating rods (93) are hinged to the bottom of the bolt connecting frame (92);
the bottom of the telescopic rod (94) and the bottom of the rotating rod (93) are both provided with the telescopic rod (94) in a sliding manner.
8. A hand-held nut pretensioning device for a worksite according to claim 6, characterized in that the fifth spring (86) is a compression spring.
CN202011296271.8A 2020-11-18 2020-11-18 Hand-held type nut pretension equipment is used in building site Pending CN112496726A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011296271.8A CN112496726A (en) 2020-11-18 2020-11-18 Hand-held type nut pretension equipment is used in building site

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011296271.8A CN112496726A (en) 2020-11-18 2020-11-18 Hand-held type nut pretension equipment is used in building site

Publications (1)

Publication Number Publication Date
CN112496726A true CN112496726A (en) 2021-03-16

Family

ID=74956948

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011296271.8A Pending CN112496726A (en) 2020-11-18 2020-11-18 Hand-held type nut pretension equipment is used in building site

Country Status (1)

Country Link
CN (1) CN112496726A (en)

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