CN113263468A

CN113263468A - Portable semi-automatic screw device of twisting

Info

Publication number: CN113263468A
Application number: CN202110698497.9A
Authority: CN
Inventors: 胡峥
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-08-17

Abstract

The invention discloses a portable semi-automatic screw twisting device which comprises a fixed sleeve, a transmission mechanism and a screw twisting mechanism, wherein an extrusion rod is sleeved inside the fixed sleeve, a driven rod is arranged on one side of the fixed sleeve, an electric screwdriver is arranged on one side of the driven rod, the transmission mechanism is arranged between the fixed sleeve and the driven rod and comprises a transmission rotating shaft, linkage gears and clamping teeth, the transmission rotating shaft is arranged inside the fixed sleeve, the linkage gears are fixedly sleeved on one side of the transmission rotating shaft, the clamping teeth are arranged in two groups, and the screw twisting mechanism is arranged on one side of the driven rod. The invention has the beneficial effects that: according to the invention, by utilizing the design of the transmission mechanism, the transmission mechanism is driven to operate by pressing the extrusion rod, then the driven rod can be driven to move in the opposite direction, and the electric screwdriver can synchronously and reversely ascend, so that the nut can be screwed to the outer side of the bolt, and an operator can extend the arm out of the window indoors to operate.

Description

Portable semi-automatic screw device of twisting

Technical Field

The invention relates to a screw screwing device, in particular to a portable semi-automatic screw screwing device, and belongs to the technical field of assembly tools.

Background

Along with the increase of the quality of life of people, people also become more and more popular to the use of air conditioner, and the air conditioner all comprises outer machine and interior machine, and the outer machine of air conditioner has the outside of needing to be fixed at the wall body, uses the tripod to support when fixed outer machine of air conditioner mostly, then uses the bolt to fix to this reaches the operation of fixed outer machine of air conditioner.

The in-process of screwing the outer machine of bolt fixed air conditioner often needs people to operate outdoors because some houses are higher, people have great danger when carrying out high altitude construction, the in-process of screwing the bolt still needs different instruments to assist simultaneously, strengthen the fixity of bolt with this, and then also can corresponding increase people in the degree of difficulty of outdoor operation, the crooked phenomenon of bolt often can appear takes place, and some semi-automatic screw tightening tools are comparatively heavy, people very easily take place to drop when handheld, thereby the phenomenon of hindering the people can appear.

Disclosure of Invention

The invention aims to solve the problems and provide a portable semi-automatic screwing device.

The invention achieves the above-mentioned purpose through the following technical scheme, a portable semi-automatic screwing device, comprising:

the device comprises a fixed sleeve, wherein an extrusion rod is sleeved inside the fixed sleeve, the top end of the extrusion rod is movably clamped with a handle, a driven rod is arranged on one side of the fixed sleeve, an electric screwdriver is arranged on one side of the driven rod, and a wire is electrically connected to one side of the electric screwdriver;

the transmission mechanism is arranged between the fixed sleeve and the driven rod and comprises a transmission rotating shaft, linkage gears and clamping teeth, the transmission rotating shaft is arranged inside the fixed sleeve, the linkage gears are fixedly sleeved on one side of the transmission rotating shaft, the clamping teeth are arranged in two groups, and the two groups of clamping teeth are respectively and fixedly connected to one sides of the extrusion rod and the driven rod, which are opposite to each other;

and the wire twisting mechanism is arranged on one side of the driven rod.

Preferably, one side of the top of the fixed sleeve is fixedly connected with an upper guide pipe, one side of the bottom of the fixed sleeve is fixedly connected with a lower guide pipe, and the upper guide pipe and the lower guide pipe are both sleeved outside the driven rod.

Preferably, the bottom of the inner cavity of the fixed sleeve is provided with a lower limiting groove, and a movable cavity is arranged below the lower limiting groove.

Preferably, an upper limiting groove is formed in the upper guide pipe, and an upper limiting plate fixedly connected with the top end of the driven rod is sleeved in the upper limiting groove.

Preferably, one side of the fixed sleeve is provided with a groove, the inner wall of the groove is symmetrically provided with two arc-shaped grooves, and the insides of the two arc-shaped grooves are both sleeved with a limiting lantern ring fixedly connected with the transmission rotating shaft.

Preferably, a connecting block is sleeved on one side of the driven rod, two positioning screws are inserted into one side of the connecting block and are in threaded connection with the driven rod, a protruding block is arranged on one side of the connecting block, an arc-shaped plate is arranged on one side of the protruding block, and the protruding block and the arc-shaped plate are arranged on two sides of the electric screwdriver.

Preferably, the two sides of the convex block and the arc-shaped plate are fixedly connected with extending blocks, fastening bolts are inserted into one sides of the two extending blocks, and connecting nuts in threaded connection with the fastening bolts are arranged on one sides of the other two extending blocks.

Preferably, it includes criticize head, nut loop bar, nut standing groove, bolt loop bar, bolt standing groove and fixed bolster to twist the silk mechanism fast, criticize first transmission fast and connect in electric screwdriver's output, nut loop bar fixed connection criticizes the top of head fast, the axle center department on nut loop bar top is seted up to the nut standing groove, the bolt loop bar sets up in the top of nut loop bar, the axle center department in bolt loop bar bottom is seted up to the bolt standing groove, one side of fixed bolster and one side fixed connection of last stand pipe, the fixed bolster is the U-shaped, the fixed bolster cup joints in criticize the outside of head and bolt loop bar fast.

Preferably, the top end of the fixed support is fixedly connected with a fixed block sleeved outside the bolt loop bar, and a locking bolt is inserted into one side of the fixed block in a penetrating manner.

The invention has the beneficial effects that: firstly, the invention utilizes the design of the transmission mechanism, the transmission mechanism is driven to operate by pressing the extrusion rod, then the driven rod can be driven to move in the opposite direction, and the electric screwdriver can synchronously and reversely ascend, so that the nut can be screwed to the outer side of the bolt, and an operator can extend the arm out of the window indoors to operate, so that the operator does not need to operate outdoors, and the life safety of the operator is effectively protected.

Secondly, the electric screwdriver can rotate after being subjected to thrust by the aid of the design of the screwing mechanism, so that the nut can be driven to be screwed into the outer side of the bolt, other tools are not needed for auxiliary operation, the nut can be accurately aligned with the bolt, the nut cannot be inclined after being screwed into the outer side of the bolt, the connection position of the air conditioner external unit and the tripod can be more stable, and the air conditioner external unit can stably work.

Thirdly, the design of the bolt sleeve rod and the linkage rod is utilized, the bolt sleeve rod drives the bolt to be inserted into the hole at the joint of the tripod and the air conditioner external unit, and the tripod can provide a supporting force for the bolt sleeve rod, so that an operator can easily hold the integral device by hand, the application force of the hand of the operator is reduced, the operator can stably hold the integral device, and the phenomenon that the integral device falls off due to the fact that the operator takes off the hand can be avoided.

The invention utilizes the design of the bolt loop bar and the quick screwdriver head, and the nut loop bar and the quick screwdriver head are both designed into detachable structures, so that when bolts or nuts with different specifications need to be used, an operator can replace different bolt loop bars and the quick screwdriver head according to requirements, and the specification of the nut loop bar above the quick screwdriver head is replaced to be corresponding to the specification of the bolt loop bar, so that the fastening work of the bolt can be carried out again, and the device has stronger practicability.

The driven rod can not be separated from the inside of the upper guide pipe, so that the top and the bottom of the driven rod can be always limited, and the motion of the driven rod has more directivity.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 1 according to the present invention;

FIG. 5 is a schematic view of the structure of the joint between the fixed sleeve and the transmission shaft according to the present invention;

FIG. 6 is a schematic view of the structure of the engagement between the latch and the linkage gear according to the present invention;

FIG. 7 is a schematic view of the bolt loop bar structure of the present invention;

fig. 8 is a schematic view of a lead and a snap-fit connection of the lead end.

In the figure: 1. fixing the sleeve; 101. an upper guide tube; 102. a lower guide tube; 103. a lower limiting groove; 104. an arc-shaped slot; 105. an upper limiting groove; 2. an extrusion stem; 201. clamping teeth; 202. a handle; 3. a movable cavity; 4. a transmission rotating shaft; 401. a linkage gear; 402. a limiting lantern ring; 5. a driven lever; 501. an upper limiting plate; 6. connecting blocks; 601. a bump; 602. an arc-shaped plate; 603. an extension block; 7. a set screw; 8. fastening a bolt; 9. an electric screwdriver; 901. fast batch head; 902. a nut stem; 903. a nut placing groove; 904. a wire; 10. a bolt loop bar; 1001. a bolt placing groove; 11. fixing a bracket; 1101. a fixed block; 12. and locking the 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, a portable semi-automatic screw driving device includes a fixed sleeve 1, a squeeze rod 2 is sleeved inside the fixed sleeve 1, a handle 202 is movably clamped at the top end of the squeeze rod 2, a non-slip mat is sleeved outside the handle 202, the non-slip mat can assist an operator to not easily fall off when using the device, and simultaneously protect hands of the operator from being damaged, a driven rod 5 is arranged on one side of the fixed sleeve 1, an electric screwdriver 9 is arranged on one side of the driven rod 5, a wire 904 is electrically connected to one side of the electric screwdriver 9, the electric screwdriver 9 can automatically rotate after being pushed, a storage battery is arranged inside the electric screwdriver 9, a switch is arranged above the handle 202, the switch is electrically connected with the storage battery through the wire 904, and a charging port is formed at the bottom end of the electric screwdriver 9, so that the electric quantity of the electric screwdriver 9 can be more conveniently supplied, the electric screwdriver 9 is one of the prior art, such as a cordless power tool of type BOSCHGO 2.

The transmission mechanism is arranged between the fixed sleeve 1 and the driven rod 5, and can realize the reverse motion of the extrusion rod 2 and the driven rod 5;

further, the transmission mechanism comprises a transmission rotating shaft 4, linkage gears 401 and clamping teeth 201, the transmission rotating shaft 4 is arranged inside the fixed sleeve 1, the linkage gears 401 are fixedly sleeved on one side of the transmission rotating shaft 4, the clamping teeth 201 are arranged into two groups, the two groups of clamping teeth 201 are respectively and fixedly connected to one sides of the extrusion rod 2 opposite to the driven rod 5, and the two groups of clamping teeth 201 are mutually meshed with the linkage gears 401;

furthermore, the bottom of the extrusion rod 2 is provided with a U-shaped groove, wherein one group of latch 201 is arranged inside the U-shaped groove;

according to the structure, when the extrusion rod 2 is pressed, the extrusion rod 2 can drive one group of the latch teeth 201 to engage with the linkage gear 401, the linkage gear 401 can rotate anticlockwise, the linkage gear 401 can engage with the other group of the latch teeth 201, and the other group of the latch teeth 201 can drive the driven rod 5 to move upwards.

As a technical optimization scheme of the present invention, referring to fig. 1, an upper guide tube 101 is fixedly connected to one side of the top of a fixed sleeve 1, a lower guide tube 102 is fixedly connected to one side of the bottom of the fixed sleeve 1, the upper guide tube 101 and the lower guide tube 102 are both sleeved outside a driven rod 5, and the upper guide tube 101 and the lower guide tube 102 both play a role of limiting the driven rod 5, so that the driven rod 5 can only move in a vertical direction.

As a technical optimization scheme of the present invention, referring to fig. 3 and fig. 4, a lower limiting groove 103 is formed at the bottom of an inner cavity of a fixing sleeve 1, a connecting rod 3 is sleeved inside the lower limiting groove 103, the top end of the connecting rod 3 is fixedly connected with the bottom end of an extrusion rod 2, and the connecting rod 3 plays a role of guiding the bottom end of the extrusion rod 2, so as to prevent the extrusion rod 2 from being skewed when moving.

As a technical optimization scheme of the present invention, referring to fig. 2 and 4, a lower limiting plate 301 is sleeved inside a lower limiting groove 103;

as a technical optimization scheme of the present invention, referring to fig. 2, an upper limiting groove 105 is formed in the upper guide tube 101, an upper limiting plate 501 fixedly connected to the top end of the driven rod 5 is sleeved in the upper limiting groove 105, the upper limiting plate 501 is limited by the upper limiting groove 105, and further the upper limiting plate 501 cannot be separated from the inside of the upper guide tube 101, so that the driven rod 5 cannot be separated from the upper guide tube 101, and the driven rod 5 is always limited by the upper guide tube 101.

As a technical optimization scheme of the invention, referring to fig. 1, fig. 5 and fig. 6, a groove is formed in one side of a fixed sleeve 1, the groove is communicated with the inside of the fixed sleeve 1, the groove is located outside a linkage gear 401, two arc-shaped grooves 104 are symmetrically formed in the inner wall of the groove, a limiting lantern ring 402 fixedly connected with a transmission rotating shaft 4 is sleeved in each of the two arc-shaped grooves 104, the limiting lantern ring 402 provides a supporting force for the transmission rotating shaft 4, the limiting lantern ring 402 is annular, and the outer wall of the limiting lantern ring 402 and the inner wall of the arc-shaped groove 104 are both processed into smooth surfaces, so that the limiting lantern ring 402 can smoothly rotate in the arc-shaped groove 104, and the running resistance of a transmission mechanism is further reduced.

As a technical optimization scheme of the invention, referring to fig. 1, a connecting block 6 is sleeved on one side of a driven rod 5, the connecting block 6 is U-shaped, the connecting block 6 is a rigid metal piece, two positioning screws 7 are inserted into one side of the connecting block 6, both the two positioning screws 7 are in threaded connection with the driven rod 5, and after the positioning screws 7 pass through the connecting block 6 and are screwed into the driven rod 5, the connecting block 6 can be tightly attached to the outer side of the driven rod 5, so that the connecting block 6 and the driven rod 5 can move synchronously;

further, one side of connecting block 6 is provided with lug 601, lug 601 sets up to two at least, one side of lug 601 is provided with arc 602, the quantity of arc 602 is unanimous with the quantity of lug 601, lug 601 and arc 602 set up in electric screwdriver 9's both sides, lug 601 sets up in the arc surface towards one side of electric screwdriver 9, and the internal diameter of lug 601 arc surface, the internal diameter of arc 602 and electric screwdriver 9's external diameter are unanimous, and then electric screwdriver 9 can be inseparable centre gripping between lug 601 and arc 602.

As a technical optimization scheme of the present invention, referring to fig. 1 and fig. 3, two sides of the convex block 601 and the arc-shaped plate 602 are fixedly connected with extension blocks 603, wherein fastening bolts 8 are inserted into one sides of two extension blocks 603, wherein a connecting nut in threaded connection with the fastening bolts 8 is arranged on one side of the other two extension blocks 603, and the fastening bolts 8 are used for connecting the arc-shaped plate 602 and the convex block 601 together;

according to the above structure, when the electric screwdriver 9 is damaged and needs to be replaced, the operator can unscrew the connecting nut, the fastening bolt 8 can be taken down from the inside of the extension block 603 at the moment, then the electric screwdriver 9 can be taken down, otherwise, after maintenance or after a new electric screwdriver 9 is placed between the arc-shaped plate 602 and the projection 601, the fastening bolt 8 passes through the extension block 603, the fastening bolt 8 is fixed by using the connecting nut, and at the moment, the electric screwdriver 9 can be stably clamped between the arc-shaped plate 602 and the projection 601, so that the replacement of the electric screwdriver 9 is simpler and more convenient.

As a technical optimization scheme of the invention, referring to fig. 1, fig. 2 and fig. 7, the screwing mechanism is arranged on one side of the driven rod 5, and the nut can be directly screwed into the outer side of the bolt through the screwing mechanism, so that the connection part of the air conditioner external unit and the tripod can be rapidly fixed.

Screw the mechanism and include criticizing first 901 fast, nut loop bar 902, nut standing groove 903, bolt loop bar 10, bolt standing groove 1001 and fixed bolster 11, criticize first 901 transmission fast and connect in electric screwdriver 9's output, nut loop bar 902 fixed connection criticizes the top of first 901 fast, electric screwdriver 9 receives after the thrust, criticize first 901 fast and can accompany electric screwdriver 9's output synchronous rotation, and criticize first 901 fast and make things convenient for the operator to change, and then make things convenient for the operator to change the nut loop bar 902 of different specifications, nut standing groove 903 is seted up in the axle center department on nut loop bar 902 top, be provided with supporting spring in the nut loop bar 902, be used for supporting bolt.

Wire 904 adopts the helix setting, and both ends correspond the connection buckle respectively, respectively with handle 202, the electric screwdriver 9 electric connection that correspond, simultaneously, one side of electric screwdriver 9 is provided with the card notch mouth, handle 202 can be directly with electric screwdriver 9 installation and electric connection.

The bolt loop bar 10 is arranged above the nut loop bar 902, the bolt placing groove 1001 is arranged at the axle center of the bottom end of the bolt loop bar 10, and one side of the fixed bracket 11 is fixedly connected with one side of the upper guide pipe 101;

further, the fixing support 11 is U-shaped, the fixing support 11 is sleeved outside the fast screwdriver head 901 and the bolt loop bar 10, and the fixing support 11 can limit the fast screwdriver head 901 to move only in the vertical direction;

further, the axis of the bolt loop bar 10 and the axis of the nut loop bar 902 are located on a vertical line, and the nut loop bar 902 is limited by the fast screwdriver head 901 and can only move in the vertical direction, so that the nut and the bolt after being placed can be aligned with each other.

As a technical optimization scheme of the invention, referring to fig. 1, the top end of a fixed support 11 is fixedly connected with a fixed block 1101 sleeved outside a bolt loop bar 10, and a locking bolt 12 is inserted into one side of the fixed block 1101;

according to the above-described structure, when it is necessary to replace the bolt holder 10, the operator first unscrews the lock bolt 12, then removes the bolt holder 10, and then puts the bolt holder 10 to be used inside the fixing block 1101.

When the electric screwdriver is used, an operator firstly presses the switch, the electric screwdriver 9 is electrically connected with the storage battery through the lead 904, and then nuts and bolts are respectively placed in the nut placing grooves 903 and the bolt placing grooves 1001.

After the bolt and the nut are placed and are accomplished, the operator alright handheld handle 202 drives the direction removal of 2 outer quick-witted junctions of extrusion pole to tripod and air conditioner, then the operator inserts the bolt among the hole of tripod, then the operator presses extrusion pole 2, and extrusion pole 2 drives connecting rod 3 and descends in step, and limiting plate 301 descends along the inside of lower spacing groove 103 under connecting rod 3 drives.

The extrusion rod 2 can drive one group of the latch teeth 201 to synchronously move when descending, one group of the latch teeth 201 can be meshed with the linkage gear 401 to rotate, the linkage gear 401 is meshed with the other group of the latch teeth 201 when rotating, the other group of the latch teeth 201 drives the driven rod 5 to synchronously move, and the driven rod 5 drives the upper limiting plate 501 to upwards slide along the inner part of the upper limiting groove 105.

The driven rod 5 rises and simultaneously drives the connecting block 6 to rise synchronously, the connecting block 6 drives the lug 601 to rise, the lug 601 drives the arc 602 to rise through the fastening bolt 8, the electric screwdriver 9 clamped by the arc 602 and the lug 601 rises synchronously, the electric screwdriver 9 drives the quick screwdriver head 901 to rise, the quick screwdriver head 901 drives the nut loop bar 902 to rise, the nut loop bar 902 jacking nut moves upwards, finally the nut is sleeved to the lower end part of the bolt, at the moment, the electric screwdriver 9 is blocked, then the electric screwdriver 9 drives the quick screwdriver head 901 to rotate, the quick screwdriver head 901 drives the nut loop bar 902 to rotate, the nut loop bar 902 drives the nut to rotate, the nut can be screwed into the outer side of the bolt gradually while rotating, finally the nut is attached below a tripod, and therefore the joint of an air conditioner outdoor unit and the tripod can be fixed.

After the nut is screwed, an operator releases the external force applied to the extrusion rod 2, at this time, under the action of gravity of the whole device, the lower limit plate 301 and the connecting rod 3 move towards the outside of the lower limit groove 103, the connecting rod 3 and the extrusion rod 2 move upwards together, the extrusion rod 2 drives one group of latch 201 to move upwards, one group of latch 201 is meshed with the linkage gear 401, the linkage gear 401 is meshed with the other group of latch 201, the other group of latch 201 drives the driven rod 5 to descend, the driven rod 5 drives the connecting block 6 to descend, the connecting block 6 drives the electric screwdriver 9 to descend, the electric screwdriver 9, the quick screwdriver head 901 and the nut sleeve rod 902 descend synchronously, finally the nut sleeve rod 902 is separated from the outer sides of the nut and the bolt, then the operator slightly lifts the rod 2 upwards, at this time, the whole device moves upwards, and the bolt sleeve rod 10 can drive the bolt placing groove 1001 to be separated from the end of the bolt, the entire assembly is then translated to the outside of the tripod and the operator then repeats the above steps to tighten the bolts one by one.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a portable semi-automatic screw device that twists which characterized in that: the method comprises the following steps:

the device comprises a fixed sleeve (1), wherein an extrusion rod (2) is sleeved inside the fixed sleeve (1), a handle (202) is movably clamped at the top end of the extrusion rod (2), a driven rod (5) is arranged on one side of the fixed sleeve (1), an electric screwdriver (9) is arranged on one side of the driven rod (5), and a lead (904) is electrically connected to one side of the electric screwdriver (9);

the transmission mechanism is arranged between the fixed sleeve (1) and the driven rod (5) and comprises a transmission rotating shaft (4), linkage gears (401) and clamping teeth (201), the transmission rotating shaft (4) is arranged inside the fixed sleeve (1), the linkage gears (401) are fixedly sleeved on one side of the transmission rotating shaft (4), the clamping teeth (201) are arranged into two groups, and the two groups of clamping teeth (201) are respectively and fixedly connected to one sides of the extrusion rod (2) and the driven rod (5) which are opposite to each other;

and the screwing mechanism is arranged on one side of the driven rod (5).

2. The portable semi-automatic screwing device according to claim 1, characterized in that: one side of the top of the fixed sleeve (1) is fixedly connected with an upper guide pipe (101), one side of the bottom of the fixed sleeve (1) is fixedly connected with a lower guide pipe (102), and the upper guide pipe (101) and the lower guide pipe (102) are both sleeved outside the driven rod (5).

3. The portable semi-automatic screwing device according to claim 1, characterized in that: the bottom of the inner cavity of the fixed sleeve (1) is provided with a lower limiting groove (103), and a movable cavity (3) is arranged below the lower limiting groove (103).

4. The portable semi-automatic screwing device according to claim 2, characterized in that: an upper limiting groove (105) is formed in the upper guide pipe (101), and an upper limiting plate (501) fixedly connected with the top end of the driven rod (5) is sleeved in the upper limiting groove (105).

5. The portable semi-automatic screwing device according to claim 1, characterized in that: one side of the fixed sleeve (1) is provided with a groove, the inner wall of the groove is symmetrically provided with two arc-shaped grooves (104), and the inside of each arc-shaped groove (104) is sleeved with a limiting lantern ring (402) fixedly connected with the transmission rotating shaft (4).

6. The portable semi-automatic screwing device according to claim 1, characterized in that: connecting block (6) have been cup jointed to one side of driven lever (5), two set screw (7), two have been alternate to one side of connecting block (6) set screw (7) all with driven lever (5) threaded connection, one side of connecting block (6) is provided with lug (601), one side of lug (601) is provided with arc (602), lug (601) and arc (602) set up in the both sides of electric screwdriver (9).

7. The portable semi-automatic screwing device according to claim 6, characterized in that: the two sides of the convex block (601) and the arc-shaped plate (602) are fixedly connected with extension blocks (603), fastening bolts (8) are inserted into one sides of the two extension blocks (603), and connecting nuts in threaded connection with the fastening bolts (8) are arranged on one sides of the other two extension blocks (603).

8. The portable semi-automatic screwing device according to claim 1, characterized in that: the screwing mechanism comprises a quick screwdriver head (901), a nut sleeve rod (902), a nut placing groove (903), a bolt sleeve rod (10), a bolt placing groove (1001) and a fixing bracket (11), the rapid screwdriver head (901) is connected with the output end of the electric screwdriver (9) in a transmission way, the nut loop bar (902) is fixedly connected with the top end of the fast screwdriver head (901), the nut placing groove (903) is arranged at the axis of the top end of the nut loop bar (902), the bolt loop bar (10) is arranged above the nut loop bar (902), the bolt placing groove (1001) is arranged at the axle center of the bottom end of the bolt loop bar (10), one side of the fixed bracket (11) is fixedly connected with one side of the upper guide pipe (101), the fixing support (11) is U-shaped, and the fixing support (11) is sleeved outside the quick screwdriver head (901) and the bolt sleeve rod (10).

9. The portable semi-automatic screwing device according to claim 8, characterized in that: the top end of the fixed support (11) is fixedly connected with a fixed block (1101) sleeved outside the bolt sleeve rod (10), and a locking bolt (12) penetrates through one side of the fixed block (1101).