CN102990605A - Pin puller - Google Patents

Abstract

The invention provides a pin puller, which belongs to the technical field of hardware tools. The pin puller is mainly characterized in that a pull rod is arranged in the middle of a support; a handle and a connecting rod are symmetrically arranged on the two sides of the pull rod; the handle and the connecting rod form a toggle rod mechanism for reinforcement; and the pull rod is pulled by the toggle rod mechanism so as to realize the purpose of pulling a pin. The pin puller has the advantages of being simple in structure, convenient to use and high in working efficiency, and is particularly free from the phenomena of impacting and prying during the process of pulling the pin, therefore, the precision of the pin or a pin hole cannot be damaged, the precision in follow-up assembly can be ensured, and the precision and quality of equipment can be ensured.

Description

Pin removal

Technical field

The present invention relates to a kind of hand tools, be specifically related to a kind of pin removal, belong to the hardware ﹠ tools technical field.

Background technology

In the connection of component of machine, when having higher positional precision between two parts, usually connect, locate with pin, for the parts dismounting that two are interconnected is come, must at first pull out being connected to two pins between the part, the existing method of pin of pulling out is owing to not having special instrument, the general sled method for distinguishing that adopts; Or in the neutral threaded hole of pin, be screwed into than stay bolt, load onto impact block at bolt, utilize impact block faster impact velocity pin is pulled out, there is the lower defective of efficient in this method of pulling pin, especially: the precision of destroying easily pin or pin-and-hole, thereby and have influence on the precision of assembling or the installation of whole parts, arrange and can cause whole equipment to work.

Summary of the invention

The object of the invention is to: for existing defects in the existing work of pulling pin, the invention provides a kind of special pin removal, satisfy the needs of the work production work of pulling pin.

The present invention realizes that the technical scheme that above-mentioned purpose adopts is: described a kind of pin removal, comprise: handle, connecting rod, bearing pin, pull bar, peg graft and sell, U-shaped connector, bracing frame, hang screw, described bracing frame is out the reverse U shape structure that shelves are downward, a pull bar is set in the centre of bracing frame, on the bracing frame of pull bar both sides with the bearing pin handle of hinged two symmetries actively, two connecting rods are the both sides that symmetry status is arranged on pull bar, and the two ends of each connecting rod use respectively the handle on the upper end of bearing pin and pull bar and limit, place hinged actively, a hinged U-shaped connector is sold with pegging graft in bottom at pull bar, is provided with in the centre of U-shaped connector and hangs screw.

The course of work of the present invention is: during work, support is connected across on the pin upper parts, is screwed in the neutral threaded hole of pin hanging screw, at this moment, two handles are compressed relatively, because handle and connecting rod form the toggle link force-increasing mechanism, so, can easily pin be pulled out.

Beneficial effect: can be found out by structure chart of the present invention and operation principle: the present invention has advantage simple in structure, easy to use, that operating efficiency is higher, especially other phenomenon is impacted, prized to nothing in pulling out the process of pin, can not destroy the precision of pin or pin-and-hole, can guarantee follow-up assembly precision, guarantee precision and the quality of equipment.

Description of drawings

Accompanying drawing 1 is structure chart of the present invention;

Shown in Fig. 1: 1, handle; 2, connecting rod; 3, bearing pin; 4, pull bar; 5, grafting pin; 6, U-shaped connector; 7, bracing frame; 8, hang screw; 9, pin; 10, part.

The specific embodiment

A kind of pin removal, it comprises handle 1, connecting rod 2, bearing pin 3, pull bar 4, peg graft and sell 5, U-shaped connector 6, bracing frame 7, hang screw 8, bracing frame 7 is for leaving the downward reverse U shape structure of shelves, a pull bar 4 is set in the centre of bracing frame 7, at the bracing frame 7 usefulness bearing pins 3 of the pull bar 4 both sides handle 1 of hinged two symmetries actively, two connecting rods 2 are the both sides that symmetry status is arranged on pull bar 4, and the two ends of each connecting rod 2 use respectively the handle 1 on the upper end of bearing pin 3 and pull bar 4 and limit, place hinged actively, bottom at pull bar 4 connects a U-shaped connector 6 with the pin hinge 5 of pegging graft, be provided with in the centre of U-shaped connector 6 and hang screw 8, during work, support 7 is connected across on pin 9 upper parts 10, be screwed in the neutral threaded hole of pin 9 hanging screw 8, at this moment, two handles, 1 relative the compression pulled out pin.

Claims (1)

1. pin removal, comprise handle (1), connecting rod (2), bearing pin (3), pull bar (4), peg graft and sell (5), U-shaped connector (6), bracing frame (7), hang screw (8), it is characterized in that: in the centre of bracing frame (7) pull bar (4) is set, at the bracing frame (7) of pull bar (4) the both sides actively handle of hinged two symmetries (1) of bearing pin (3), two connecting rods (2) are the both sides that symmetry status is arranged on pull bar (4), and the two ends of each connecting rod (2) use respectively the handle (1) on the upper end of bearing pin 3 and pull bar (4) and limit, place hinged actively, bottom at pull bar (4) connects a U-shaped connector (6) with the pin hinge (5) of pegging graft, and is provided with in the centre of U-shaped connector (6) and hangs screw (8).

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