CN212287482U - Manual pin pulling device - Google Patents

Abstract

The utility model discloses a manual pin pulling device, which comprises a guide rod, a lower limit plate and a slide block, wherein the bottom of the guide rod is fixedly connected with the lower limit plate, the middle part of the lower limit plate is connected with the slide block in an embedding way, the top of the guide rod is connected with an upper limit plate in an embedding way, the bottom of the guide rod is connected with the lower limit plate in an embedding way, the bottom of the lower limit plate is fixedly connected with a support hook, the bottom of the support hook is movably connected with a pin pulling bolt, the top of the pin pulling bolt is fixedly connected with a nut, the bottom of the pin pulling bolt is connected with an upper threaded hole in an embedding way, the upper threaded hole is arranged in a connecting block, the connecting block is convenient to be connected with and detached from the pin pulling bolt, the upper limit plate can be used for blocking the slide block and preventing the slide block from being separated from the guide rod due to overlarge stress, the applicability of the manual pin, has wide development prospect in the future.

Description

Manual pin pulling device

Technical Field

The utility model relates to a round pin axle type part dismouting technical field specifically is a manual pulling pin device.

Background

In the process of overhauling and disassembling mechanical equipment with a pin shaft, disassembling a positioning pin shaft is an indispensable procedure.

Because current pin pulling tool mainly is crow bar, adjustable spanner etc. through the nut of the bolt of round pin axle upper portion screw in as the fulcrum, upwards perk hard, because the atress is uneven in the use, often cause the bolt bending or fracture, the round pin axle is crooked, the locating pin can't be taken out, and the fulcrum is insecure, crow bar and nut are very easily thrown off at the sled in-process, cause the injury to operating personnel and equipment, there is the component force nonparallel with the round pin axle central line simultaneously at the sled in-process, this component force again along with the fulcrum, the different changes of sled height are big.

Therefore, how to design a manual pin pulling device becomes a problem which needs to be solved currently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a manual pin pulling device to fulcrum atress is uneven when solving the current device perk that proposes among the above-mentioned background art, easily causes the bolt bending or fracture, and the round pin axle is crooked, the unable problem of taking out of locating pin.

In order to achieve the above object, the utility model provides a following technical scheme: a manual pin pulling device comprises a guide rod, a lower limiting plate and a sliding block, wherein the bottom of the guide rod is fixedly connected with the lower limiting plate, the middle part of the lower limiting plate is connected with the sliding block in an embedded manner, the top of the guide rod is connected with the upper limiting plate in an embedded manner, the bottom of the guide rod is connected with the lower limiting plate in an embedded manner, the bottom of the lower limiting plate is fixedly connected with a supporting hook, the bottom of the supporting hook is movably connected with a pin pulling bolt, the top of the pin pulling bolt is fixedly connected with a nut, the bottom of the pin pulling bolt is connected with an upper threaded hole in an embedded manner, the surface of the upper threaded hole is fixedly connected with a connecting block, the inner bottom of the connecting block is fixedly connected with a lower threaded hole, the bottom of the lower threaded hole is movably connected with an extension rod, the bottom of the extension rod is connected with a pin pulling threaded hole, the surface of the second threaded rod is connected with a first threaded hole in an embedded mode, the bottom of the upper limiting plate is fixedly connected with a first threaded rod, and the bottom of the first threaded rod is connected with a second threaded hole in an embedded mode.

Preferably, the top of the upper limiting plate is fixedly connected with a handle.

Preferably, the top of one side of the supporting hook is fixedly connected with a supporting tooth.

Preferably, the surface of the sliding block is fixedly connected with anti-skid grains.

Preferably, the lower limiting plate at the bottom of the guide rod, the sliding block at the middle part of the lower limiting plate, the upper limiting plate at the top of the guide rod, the lower limiting plate at the bottom of the guide rod, the support hook at the bottom of the lower limiting plate, the pull pin bolt at the bottom of the support hook, and the screw cap at the top of the pull pin bolt and the upper threaded hole at the bottom of the pull pin bolt jointly form the pull pin device.

Preferably, the connecting block on the surface of the upper threaded hole, the lower threaded hole at the bottom of the inner side of the connecting block, the extension rod at the bottom of the lower threaded hole, the pin pulling threaded hole at the bottom of the extension rod, the pin shaft on the surface of the pin pulling threaded hole, the second threaded rod at the top of the lower limiting plate, the first threaded hole on the surface of the second threaded rod and the first threaded rod at the bottom of the upper limiting plate jointly form a fixed extension device.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the manual pin pulling device, the pin pulling bolt is screwed into the pin pulling threaded hole in the upper part of the pin shaft through the pin pulling device when the pin shaft is detached, the nut of the pin pulling bolt is hooked by the supporting teeth of the hook part of the supporting hook, meanwhile, the sliding block is operated to rapidly move towards the upper limiting plate along the guide rod, the impact force generated by the impact of the sliding block and the upper limiting plate is transferred to the pin pulling bolt, the impact force generated by the impact of the sliding block moving on the guide rod and impacting the upper limiting plate is converted into the pulling force for pulling out the pin shaft, and the safety and the high efficiency of the manual pin pulling device are well embodied;

2. this kind of manual pin pulling device, through setting up fixed extension device, at the bottom installation connecting block of pin pulling bolt, there are screw hole and lower screw hole in the inside of connecting block, it is used for connecting pin pulling bolt and extension rod respectively, and the upper end of connecting block links to each other with the lower extreme detachably of pin pulling bolt, and the lower extreme of connecting block also detachably links to each other with the upper end of extension rod, its easy operation, and connect the fastening to fine embodiment this manual pin pulling device's suitability.

Drawings

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

fig. 2 is an enlarged schematic view of the utility model at a;

FIG. 3 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 4 is a schematic view of the connection structure of the extension rod of the present invention;

in the figure: 1. guide rod, 2, lower limiting plate, 3, slider, 4, upper limiting plate, 5, handle, 6, support hook, 7, support tooth, 8, pull out the round pin bolt, 9, nut, 10, pull out the round pin screw hole, 11, round pin axle, 12, last screw hole, 13, connecting block, 14, lower screw hole, 15, extension rod, 16, anti-skidding line, 17, first screw hole, 18, second screw hole, 19, first threaded rod, 20, second threaded rod.

Detailed Description

The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a manual pin pulling device comprises a guide rod 1, a lower limiting plate 2 and a sliding block 3, wherein the bottom of the guide rod 1 is fixedly connected with the lower limiting plate 2, the middle part of the lower limiting plate 2 is connected with the sliding block 3 in an embedded manner, the top of the guide rod 1 is connected with an upper limiting plate 4 in an embedded manner, the bottom of the guide rod 1 is connected with the lower limiting plate 2 in an embedded manner, the bottom of the lower limiting plate 2 is fixedly connected with a supporting hook 6, the bottom of the supporting hook 6 is movably connected with a pin pulling bolt 8, the top of the pin pulling bolt 8 is fixedly connected with a nut 9, the bottom of the pin pulling bolt 8 is connected with an upper threaded hole 12 in an embedded manner, the surface of the upper threaded hole 12 is fixedly connected with a connecting block 13, the bottom of the inner side of the connecting block 13 is fixedly connected with a lower threaded hole 14, the bottom of the lower threaded hole, the top of the lower limiting plate 2 is fixedly connected with a second threaded rod 20, the surface of the second threaded rod 20 is connected with a first threaded hole 17 in an embedded mode, the bottom of the upper limiting plate 4 is fixedly connected with a first threaded rod 19, and the bottom of the first threaded rod 19 is connected with a second threaded hole 18 in an embedded mode.

Preferably, go up the top fixedly connected with handle 5 of spacing board 4, owing to advancing the in-process of shape pulling pin, need the movable block repeated striking go up the spacing board, the impact force is great when the striking, and the staff is difficult to stabilising arrangement when the operation, through setting up handle 5, at the top installation handle 5 of last spacing board 4, handle 5 is the cyclic annular staff of being convenient for snatchs, guarantees to pull out the stability of round pin in-process manual pulling pin device to fine embodiment the device's stability.

Preferably, one side top fixedly connected with of support hook 6 supports tooth 7, because in actual operation, the round pin axle on a lot of instruments is tiny, fasten the round pin axle when using the pin bolt, but be difficult to find the stress point on the pin bolt, consequently, can not simple extract the round pin axle, through setting up support tooth 7, at a side-mounting support tooth 7 of support hook 6, support tooth 7 is provided with two, it has certain space to make pin bolt 8 can block in the space to pull out between two support teeth 7, make its atress stable, be convenient for extract the round pin axle, fine embodiment the device's atress convenience.

Preferably, the fixed surface of slider 3 is connected with anti-skidding line 16, because when actual operation, the staff is that the manual movable block that promotes repeatedly makes its striking go up the limiting plate, long-time operation, the hand easily perspires, make and easily skid when holding the movable block, the application of force is unstable, through setting up anti-skidding line 16, surface mounting at slider 3 has anti-skidding line 16, anti-skidding line 16 surface has a plurality of caves, the roughness, thereby increase and the frictional force between the hand, make its device of holding tightly, and make the hand application of force stable, thereby fine embodiment the device's accuracy.

Preferably, the lower limiting plate 2 at the bottom of the guide rod 1, the slider 3 at the middle part of the lower limiting plate 2, the upper limiting plate 4 at the top of the guide rod 1, the lower limiting plate 2 at the bottom of the guide rod 1, the supporting hook 6 at the bottom of the lower limiting plate 2, the pulling bolt 8 at the bottom of the supporting hook 6, the nut 9 at the top of the pulling bolt 8 and the upper threaded hole 12 at the bottom of the pulling bolt 8 jointly form a pulling device, because the existing pulling device is unevenly stressed when in operation, the bolt is bent or broken, the pin shaft is bent, the positioning pin cannot be taken out, the stressed fulcrum is infirm, the prying bar and the nut are easily separated during prying, the injury to operators and equipment can be caused, by arranging the pulling device, when the pin shaft 11 is removed, the pulling bolt 8 is screwed into the pulling threaded hole 10 at the upper part of the pin shaft 11, the nut 9 of the pulling bolt 8 is hooked by the supporting tooth 7 of the supporting hook 6, meanwhile, the sliding block 3 is operated to rapidly move towards the upper limiting plate 4 along the guide rod 1, the impact force generated by the impact of the sliding block 3 and the upper limiting plate 4 is transferred to the pin pulling bolt 8, the impact force generated by the impact of the sliding block 3 on the guide rod 1 is converted into the pulling force for pulling the pin shaft 11, the dismounting force is large, the operation is simple, the pin shaft 11 is not damaged, the pin shaft 11 can be pulled up by reciprocating, and the safety and the high efficiency of the manual pin pulling device are well embodied.

Preferably, the connecting block 13 on the surface of the upper threaded hole 12, the lower threaded hole 14 at the bottom of the inner side of the connecting block 13, the extension rod 15 at the bottom of the lower threaded hole 14, the pin pulling threaded hole 10 at the bottom of the extension rod 15, the pin shaft 11 on the surface of the pin pulling threaded hole 10, the second threaded rod 20 at the top of the lower limiting plate 2, the first threaded hole 17 on the surface of the second threaded rod 20 and the first threaded rod 19 at the bottom of the upper limiting plate 4 jointly form a fixed extension device, because in the existing device, the structure of the device is simple, the space sizes of the pin shafts in different tools are different, the size of the existing pin pulling bolt is fixed, if the pin shaft with a smaller space needs to be taken out, the pin pulling bolt is difficult to take out, by arranging the fixed extension device, the connecting block 13 is installed at the bottom of the pin pulling bolt 8, the upper threaded hole 12 and the lower threaded hole 14 are, the upper end of connecting block 13 links to each other with the lower extreme detachably of pulling pin bolt 8, and the lower extreme of connecting block 13 also detachably links to each other with the upper end of extension rod 15, and easy operation, and connect the fastening, and the lower extreme of extension rod 15 is provided with the external screw thread, make the lower extreme of this extension rod 15 can screw in the round pin hole 10 of pulling pin on 11 upper portion of round pin axle of treating to extract, stretch into extension rod 70 in the installation space of installation round pin axle 11, and with the lower extreme and the round pin axle 11 of extension rod 15, can conveniently extract round pin axle 11, thereby fine embodiment this manual device of pulling out's suitability.

The working principle is as follows: firstly, the support teeth 7 are arranged on one side of the support hook 6, the number of the support teeth 7 is two, and a certain gap is formed between the two support teeth 7, so that the pin pulling bolt 8 can be clamped in the gap, the stress of the pin pulling bolt is stable, the pin shaft is convenient to pull out, and the stress convenience of the device is well embodied;

then, the handle 5 is arranged on the top of the upper limit plate 4, the handle 5 is annular and is convenient for a worker to grab, and the stability of the manual pin pulling device in the pin pulling process is ensured, so that the stability of the device is well embodied;

then, by arranging the anti-slip patterns 16, the anti-slip patterns 16 are arranged on the surface of the sliding block 3, and the surface of the anti-slip patterns 16 is provided with a plurality of recesses and is rough, so that the friction force between the anti-slip patterns 16 and the hand is increased, the device is tightly held, the force applied by the hand is stable, and the accuracy of the device is well embodied;

next, by arranging the pin pulling device, when the pin shaft 11 is removed, the pin pulling bolt 8 is screwed into the pin pulling threaded hole 10 at the upper part of the pin shaft 11, the support teeth 7 of the hook part of the support hook 6 are utilized to hook the nut 9 of the pin pulling bolt 8, meanwhile, the slide block 3 is operated to enable the slide block to rapidly move towards the upper limiting plate 4 along the guide rod 1, the impact force generated by the impact between the slide block 3 and the upper limiting plate 4 is transferred to the pin pulling bolt 8, the impact force generated by the impact between the slide block 3 and the upper limiting plate 4 when the slide block 3 moves on the guide rod 1 and impacts the upper limiting plate 4 is converted into the pulling of the pin shaft 11, the dismounting force is large, the operation is simple, the pin shaft 11 is not damaged, the reciprocating is adopted, the pin;

finally, by arranging the fixing and extending device, the connecting block 13 is installed at the bottom of the pin pulling bolt 8, the connecting block 13 is internally provided with an upper threaded hole 12 and a lower threaded hole 14 which are respectively used for connecting the pin pulling bolt 8 and the extension rod 15, the upper end of the connecting block 13 is detachably connected with the lower end of the pin pulling bolt 8, the lower end of the connecting block 13 is also detachably connected with the upper end of the extension rod 15, the operation is simple, the connection is firm, the lower end of the extension rod 15 is provided with external threads, so that the lower end of the extension rod 15 can be screwed into the pin pulling threaded hole 10 on the upper portion of the pin shaft 11 to be pulled out, the extension rod 70 extends into the installation space of the pin shaft 11, the lower end of the extension rod 15 and the pin shaft 11 can be conveniently pulled out, the applicability of the manual pin pulling device is well embodied, and the working principle of the manual pin pulling device is.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (7)

1. The utility model provides a manual pin pulling device, includes guide arm (1), lower limiting plate (2) and slider (3), its characterized in that: the bottom of the guide rod (1) is fixedly connected with a lower limiting plate (2), the middle part of the lower limiting plate (2) is connected with a sliding block (3) in an embedded manner, the top of the guide rod (1) is connected with an upper limiting plate (4) in an embedded manner, the bottom of the guide rod (1) is connected with a lower limiting plate (2) in an embedded manner, the bottom of the lower limiting plate (2) is fixedly connected with a support hook (6), the bottom of the support hook (6) is movably connected with a pull pin bolt (8), the top of the pull pin bolt (8) is fixedly connected with a nut (9), the bottom of the pull pin bolt (8) is connected with an upper threaded hole (12) in an embedded manner, the surface of the upper threaded hole (12) is fixedly connected with a connecting block (13), the bottom of the inner side of the connecting block (13) is fixedly connected with a lower threaded hole (, the bottom embedding of extension rod (15) is connected with pulls out round pin screw hole (10), the fixed surface of pulling out round pin screw hole (10) is connected with round pin axle (11), top fixedly connected with second threaded rod (20) of lower limiting plate (2), second threaded rod (20) surface embedding is connected with first screw hole (17), go up first threaded rod (19) of bottom fixedly connected with of limiting plate (4).

2. A manual pin pulling apparatus as defined in claim 1, wherein: the bottom of the first threaded rod (19) is connected with a second threaded hole (18) in an embedded mode.

3. A manual pin pulling apparatus as defined in claim 1, wherein: the top of the upper limiting plate (4) is fixedly connected with a handle (5).

4. A manual pin pulling apparatus as defined in claim 1, wherein: the top of one side of the supporting hook (6) is fixedly connected with a supporting tooth (7).

5. A manual pin pulling device according to claim 4, wherein: the surface of the sliding block (3) is fixedly connected with anti-skid grains (16).

6. A manual pin pulling apparatus as defined in claim 1, wherein: lower limiting plate (2) of guide arm (1) bottom, slider (3) of lower limiting plate (2) middle part, last limiting plate (4) at guide arm (1) top, lower limiting plate (2) of guide arm (1) bottom, support hook (6) of lower limiting plate (2) bottom, support pin pulling bolt (8) of hook (6) bottom, nut (9) at pin pulling bolt (8) top and last screw hole (12) of pin pulling bolt (8) bottom constitute the pin pulling device jointly.

7. A manual pin pulling apparatus as defined in claim 1, wherein: go up connecting block (13) on screw hole (12) surface, lower screw hole (14) of connecting block (13) inboard bottom, extension rod (15) of screw hole (14) bottom down, pin pulling screw hole (10) of extension rod (15) bottom, pin shaft (11) on pin pulling screw hole (10) surface, second threaded rod (20) at lower limiting plate (2) top, first screw hole (17) on second threaded rod (20) surface and first threaded rod (19) of last limiting plate (4) bottom constitute fixed extension device jointly.

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