CN218341968U

CN218341968U - Power-assisted wrench capable of enlarging torque

Info

Publication number: CN218341968U
Application number: CN202221147147.XU
Authority: CN
Inventors: 柴清顺; 祁光
Original assignee: Tianjin Lingke Engineering Technology Service Co ltd
Current assignee: Tianjin Lingke Engineering Technology Service Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2023-01-20
Anticipated expiration: 2032-05-12

Abstract

The utility model relates to a power wrench technical field, and a can enlarge power wrench of moment of torsion is disclosed, the top fixedly connected with connecting block of pole body, the top demountable installation of connecting block has the wrench head, the bottom fixedly connected with spliced pole of wrench head, the lower part outside equidistance of spliced pole is provided with the fixture block, the gliding spout of confession fixture block is seted up to the inner wall of slot, seted up between the spout with fixture block assorted draw-in groove, the bottom of slot is provided with the stripper plate, it is equipped with the pressure spring to add between the inner chamber diapire of stripper plate and slot, can dismantle with the connecting block through having the wrench head, current power wrench has been solved because can't satisfy and install and dismantle the nut and the bolt of different model specifications, and lead to carrying out the inconvenience that the operation brought because of the spanner of carrying multiple different models and because the damage of wrench head can lead to whole spanner scrapping, the life of power wrench is not only reduced, and the problem of change cost has been increased.

Description

Power-assisted wrench capable of enlarging torque

Technical Field

The utility model relates to a helping hand spanner technical field specifically is a can enlarge helping hand spanner of moment of torsion.

Background

The power wrench is a common mounting and dismounting tool, a manual tool for screwing bolts, screws, nuts and other threads to tightly hold openings or trepanning fasteners of the bolts or the nuts is screwed by utilizing the lever principle, and a special power wrench is required to be frequently used in machining, production and maintenance in the mechanical industry.

The spanner head and the most formula as an organic whole of spanner handle of traditional helping hand spanner are connected, can't satisfy the nut to different model specifications, bolt and screw are installed and are dismantled, the spanner of multiple different models need be taken and operation is carried out, so the spanner structure of removable spanner head has appeared, but the change mode that the helping hand spanner of common removable spanner head adopted is direct plug-in formula (like double-end spanner), the spacing of spanner head is through the handle body after the jam and the realization of rubbing between the spanner head, the accident that drops of spanner head takes place easily, we provide a helping hand spanner that can enlarge the moment of torsion for this reason.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a can enlarge helping hand spanner of moment of torsion, this helping hand spanner has realized that the dismantlement to the spanner head is changed and is satisfied the bolt to different specification models, the installation and the dismantlement of screw or nut, the suitability of device and the convenience of dismantlement have been increased, above-mentioned current helping hand spanner has been solved because can't satisfy the nut to different model specifications, bolt and screw are installed and are dismantled, and lead to carrying on the inconvenience that the operation brought and can lead to whole spanner to scrap because of the damage of spanner head because of carrying the spanner of multiple different models, the life of helping hand spanner has not only been reduced, and the problem of replacement cost has been increased.

(II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: a power-assisted wrench capable of expanding torque comprises a rod body, wherein a grab handle is in threaded connection with the bottom of the rod body, a connecting block is fixedly connected to the top of the rod body, and a wrench head is detachably mounted on the top of the connecting block;

the bottom fixedly connected with spliced pole of spanner head, the lower part outside equidistance of spliced pole is provided with the fixture block, the inside of connecting block seted up with spliced pole assorted slot, the gliding spout of confession fixture block is seted up to the inner wall of slot, seted up between the spout with fixture block assorted draw-in groove, the bottom of slot is provided with the stripper plate, it is equipped with the pressure spring to add between the inner chamber diapire of stripper plate and slot, stripper plate and slot inner wall sliding connection.

Preferably, the lower end of the rod body is fixedly connected with a threaded rod, a threaded deep hole is formed in the grab handle, the outer portion of the threaded rod is in threaded connection with the inner wall of the threaded deep hole, and anti-slip layers are arranged on the outer side of the lower portion of the rod body and the outer side of the lower portion of the grab handle.

Preferably, the wrench head comprises a wrench body, a fixed jaw is fixedly connected to the right side of the top of the wrench body, a moving groove is formed in the surface of the left side of the top of the wrench body and is connected with a movable jaw in a sliding mode, the movable jaw and the fixed jaw are arranged oppositely, a through groove is formed in the lower portion of the moving groove, a worm is rotatably connected to the inside of the through groove, and the worm is in threaded connection with the bottom of the movable jaw.

Preferably, the thickness of the inner wall of the lower portion of the slot is smaller than that of the inner wall of the upper portion of the slot, the sliding groove penetrates through the inner wall of the upper portion of the slot, the clamping groove is formed in the bottom of the inner wall of the upper portion, the depth of the clamping groove is consistent with the height of the clamping blocks, the sliding groove and the clamping groove are four, the sliding groove and the clamping groove are symmetrically arranged, and the number of the clamping blocks is consistent with that of the sliding groove and the clamping groove.

Preferably, the center of the bottom of the connecting column is fixedly connected with a positioning column, and the center of the upper surface of the extrusion plate is provided with a positioning groove matched with the positioning column.

Preferably, the left side and the right side of the extrusion plate are fixedly connected with guide blocks, and the inner wall of the lower part of the slot is provided with a guide groove for the guide blocks to slide.

(III) advantageous effects

Compared with the prior art, the utility model provides a can enlarge helping hand spanner of moment of torsion possesses following beneficial effect:

this can enlarge helping hand spanner of moment of torsion, through inserting the spliced pole in the slot and arranging the fixture block in the spout, remove the spliced pole to the bottom of slot under the sliding fit of fixture block and spout, the reference column inserts in the constant head tank and extrudees the stripper plate and make the pressure spring shrink simultaneously, make the fixture block align the draw-in groove through rotatory spliced pole, through releasing the wrench head and support the fixture block in the draw-in groove through the stripper plate under the resilience effect of pressure spring and fix the wrench head, thereby accomplish the change to the wrench head, otherwise dismantle the wrench head, not only easy operation is convenient, and the suitability of device and the convenience of dismantlement have been increased, current helping hand spanner has been solved because can't satisfy the nut to different model specifications, bolt and screw are installed and dismantle, and lead to carrying the inconvenience that the operation brought because of the spanner of multiple different models and can lead to whole condemning because the damage of wrench head, the life of helping hand spanner has not only been reduced, and the problem of change cost has been increased.

Drawings

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

FIG. 2 is a schematic side view of the connecting column of the present invention;

FIG. 3 is a schematic view of the connecting column of the present invention;

FIG. 4 is a schematic view of the top view of the slot of the present invention;

FIG. 5 is a schematic view of the slot of the present invention;

fig. 6 is a schematic diagram of the longitudinal structure of the slot of the present invention.

In the figure: 1. a shaft body; 2. a handle; 3. connecting blocks; 4. a wrench head; 5. connecting columns; 6. A clamping block; 7. a slot; 8. a chute; 9. a card slot; 10. a compression plate; 11. compressing the spring; 12. a threaded rod; 13. an anti-slip layer; 14. a wrench body; 15. fixing the jaw; 16. a movable jaw; 17. a worm; 18. a positioning column; 19. positioning a groove; 20. a guide block; 21. a guide groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figure 1, the utility model provides a technical scheme, a power wrench capable of enlarging torque, which comprises a rod body 1, a grab handle 2 is connected with the bottom of the rod body 1 through screw threads, a threaded rod 12 is fixedly connected with the lower end of the rod body 1, a threaded deep hole is arranged inside the grab handle 2, the outer part of the threaded rod 12 is in threaded connection with the inner wall of the threaded deep hole, the length of the power wrench is convenient to adjust by rotating the grab handle 2, thereby increasing torque and facilitating use, anti-slip layers 13 are arranged on the outer side of the lower part of the rod body 1 and the outer side of the lower part of the grab handle 2, which can play a role of anti-slip, a connecting block 3 is fixedly connected with the top of the rod body 1, a wrench head 4 is detachably arranged on the top of the connecting block 3, a connecting column 5 is inserted into a slot 7 and a clamping block 6 is arranged in a slot 8, the connecting column 5 is moved to the bottom of the slot 7 under the sliding fit of the clamping block 6 and the slot 8, meanwhile, the positioning column 18 is inserted into the positioning groove 19 and extrudes the extrusion plate 10 to shrink the pressure spring 11, the connecting column 5 is rotated to align the fixture block 6 with the clamping groove 9, the wrench head 4 is released and the fixture block 6 is supported in the clamping groove 9 through the extrusion plate 10 under the resilience action of the pressure spring 11 to fix the wrench head 4, so that the replacement of the wrench head 4 is completed, otherwise, the wrench head 4 is disassembled, the operation is simple and convenient, the applicability and the disassembly convenience of the device are improved, the problems that the existing power-assisted wrench cannot meet the requirements of the installation and the disassembly of nuts, bolts and screws with different types and specifications, the inconvenience caused by the operation of carrying various types of wrenches and the scrapping of the whole wrench due to the damage of the wrench head 4 are solved, the service life of the power-assisted wrench is shortened, and increased replacement cost's problem, wrench head 4 includes spanner body 14, spanner body 14's the fixed jaw 15 of top right side fixedly connected with, shifting chute and shifting chute sliding connection have been seted up to spanner body 14's top left side surface, shifting chute 16 and fixed jaw 15 set up relatively, the inside rotation that logical groove and logical groove were seted up to the below of shifting chute is connected with worm 17, worm 17 and the bottom threaded connection of shifting chute 16, be convenient for adjust the interval between shifting chute 16 and the fixed jaw 15 through worm 17 according to the size of nut or bolt, the practicality of helping hand spanner has further been increased.

As shown in fig. 2 and 3, the bottom of the wrench head 4 is fixedly connected with a connecting column 5, the outer side of the lower part of the connecting column 5 is equidistantly provided with clamping blocks 6, the center of the bottom of the connecting column 5 is fixedly connected with a positioning column 18, and the number of the clamping blocks 6 is consistent with the number of the sliding grooves 8 and the clamping grooves 9.

As shown in fig. 4 and 5, a slot 7 matched with the connecting column 5 is formed in the connecting block 3, a sliding groove 8 for sliding the fixture block 6 is formed in the inner wall of the slot 7, a clamping groove 9 matched with the fixture block 6 is formed between the sliding grooves 8, the depth of the clamping groove 9 is consistent with the height of the fixture block 6, the sliding grooves 8 and the clamping grooves 9 are four, the sliding grooves 8 and the clamping grooves 9 are symmetrically arranged, and the clamping grooves 9 are formed in the bottom of the inner wall of the upper portion.

As shown in fig. 6, the bottom of slot 7 is provided with stripper plate 10, pressure spring 11 is additionally arranged between stripper plate 10 and the inner chamber diapire of slot 7, stripper plate 10 and slot 7 inner wall sliding connection, upper surface center of stripper plate 10 has been seted up with reference column 18 assorted constant head tank 19, the lower part inner wall thickness of slot 7 is less than upper portion inner wall thickness, spout 8 runs through the upper portion inner wall of slot 7, the equal fixedly connected with guide block 20 in the left and right sides of stripper plate 10, the gliding guide way 21 of confession guide block 20 has been seted up to the lower part inner wall of slot 7.

The working principle of the device is as follows: at first through insert spliced pole 5 slot 7 and arrange fixture block 6 in spout 8, remove spliced pole 5 to slot 7's bottom under the sliding fit of fixture block 6 and spout 8, reference column 18 inserts in constant head tank 19 and extrudes to stripper plate 10 and make pressure spring 11 shrink simultaneously, make fixture block 6 align draw-in groove 9 through rotatory spliced pole 5, through release wrench head 4 and support fixture block 6 in draw-in groove 9 through stripper plate 10 under the rebound effect of pressure spring 11 and fix wrench head 4, thereby accomplish the change to wrench head 4, otherwise dismantle wrench head 4, not only easy operation is convenient, and the convenience of device has been increased, the problem of current helping hand spanner because can't satisfy the nut to different model specifications, bolt and screw are installed and are dismantled, and lead to carrying the inconvenience that the operation brought because of the spanner of multiple different models and can lead to whole spanner because of the damage of wrench head 4 to scrap because of wrench head 4, not only the life of helping hand spanner has been reduced, and then increased the problem of change cost, thereby the convenience is adjusted through the adjustable torque of the spanner 2, thereby the further increase of the adjustable wrench jaw size according to the adjustable torque of the adjustable wrench 15, thereby the convenience of the adjustable wrench jaw is convenient use.

It is noted that, in the text, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A power-assisted wrench capable of expanding torque comprises a shaft body (1), and is characterized in that: the bottom of the rod body (1) is in threaded connection with a grab handle (2), the top of the rod body (1) is fixedly connected with a connecting block (3), and the top of the connecting block (3) is detachably provided with a wrench head (4);

the bottom fixedly connected with spliced pole (5) of spanner head (4), the lower part outside equidistance of spliced pole (5) is provided with fixture block (6), the inside of connecting block (3) seted up with spliced pole (5) assorted slot (7), confession fixture block gliding spout (8) have been seted up to the inner wall of slot (7), seted up between spout (8) with fixture block (6) assorted draw-in groove (9), the bottom of slot (7) is provided with stripper plate (10), add between the inner chamber diapire of stripper plate (10) and slot (7) and be equipped with pressure spring (11), stripper plate (10) and slot (7) inner wall sliding connection.

2. An expandable torque assist wrench as claimed in claim 1, wherein: the lower end of the rod body (1) is fixedly connected with a threaded rod (12), a threaded deep hole is formed in the grab handle (2), the outer portion of the threaded rod (12) is in threaded connection with the inner wall of the threaded deep hole, and anti-skidding layers (13) are arranged on the outer side of the lower portion of the rod body (1) and the outer side of the lower portion of the grab handle (2).

3. An expandable torque assist wrench as claimed in claim 1, wherein: the wrench head (4) comprises a wrench body (14), a fixed jaw (15) is fixedly connected to the right side of the top of the wrench body (14), a moving groove is formed in the surface of the left side of the top of the wrench body (14), the moving groove is connected with a movable jaw (16) in a sliding mode, the movable jaw (16) and the fixed jaw (15) are arranged oppositely, a through groove is formed in the lower portion of the moving groove, a worm (17) is connected to the inside of the through groove in a rotating mode, and the worm (17) is in threaded connection with the bottom of the movable jaw (16).

4. An expandable torque assist wrench as claimed in claim 1, wherein: the thickness of the inner wall of the lower portion of the slot (7) is smaller than that of the inner wall of the upper portion, the sliding groove (8) penetrates through the inner wall of the upper portion of the slot (7), the clamping groove (9) is formed in the bottom of the inner wall of the upper portion, the depth of the clamping groove (9) is consistent with the height of the clamping block (6), the sliding groove (8) and the clamping groove (9) are four, the sliding groove (8) and the clamping groove (9) are symmetrically arranged, and the quantity of the clamping block (6) is consistent with that of the sliding groove (8) and the clamping groove (9).

5. An expandable torque assist wrench as claimed in claim 1, wherein: the bottom center of the connecting column (5) is fixedly connected with a positioning column (18), and the center of the upper surface of the extrusion plate (10) is provided with a positioning groove (19) matched with the positioning column (18).

6. An expandable torque assist wrench as claimed in claim 1, wherein: the left side and the right side of the extrusion plate (10) are fixedly connected with guide blocks (20), and the inner wall of the lower part of the slot (7) is provided with a guide groove (21) for the guide blocks (20) to slide.