CN2710929Y - Convenient spanner for wheel-tyre screw - Google Patents

Abstract

The utility model relates to a convenient spanner for tyre screws, which belongs to the technical field of the spanner design and manufacture for tyre screws. The utility model is composed of a force enhancer, a spanner and an auxiliary spanner which is matched with the spanner; the utility model is especially used for disassembling and assembling automobile tyres; a force enhancing rod and a ratchet wheel is arranged on the force enhancer and the lower end of the force enhancing rod is provided with ratchet pawls; the force enhancing rod is connected with a protective cover through a coupling shaft; the upper part of the spanner is provided with a hexagon casing tube and the lower part is provided with a hexangular rod. The utility model has the use method in that the hexangular rod of the spanner is sheathed in the hexagon hole of the ratchet wheel and the hexagon casing tube of the spanner is arranged on disassembled screw nuts; according to the different specifications of the screw nuts, the spanner can be chose, and the force enhancing rod is wrenched; the ratchet pawl at the lower part of the force enhancing rod butts with ratchets, so the screw nut is boosted to rotate. When the force enhancing rod reaches certain position and can not be rotated conveniently, the force enhancing rod can be rotated in opposite direction and the spanner can got back to a convenient operating position; the spanner can be rotated again until the screws are disassembled and assembled. Having the advantage of convenient and rapid operation, the utility model is especially suitable for night operation.

Description

The tire screw convenient wrench

Technical field

The utility model belongs to the design and the manufacturing technology field of tire screw spanner.

Background technology

At present, be used for the spanner of remove a tyre screw, there is the hexagonal sleeve pipe at its two ends, and the centre is a boosting-rod, and during use, the hexagonal sleeve pipe entangles nut, penetrates an iron rod in the hole on boosting-rod, and plate moves iron rod, drive boosting-rod, the dismounting nut.But this spanner uses inconvenient especially.After pulling to a certain degree, need spanner is taken off from nut, put again and dismantle, each takes off, inferior again loading onto, often unloading next nut needs for a long time.In addition, for the long-distance transport driver, as just operating more trouble at night.So this spanner is not very desirable.Also do not use in practice at present with the utility model like products.

Summary of the invention

The purpose of this utility model provides a kind of convenient spanner that uses, and after pulling to a certain degree, does not need to take off from nut, can turn continuously, until nut is unloaded or loads onto, to solve the practical problems that existing product exists.

Structure of the present utility model is as shown in drawings: be made of assistor (as shown in Figure 1), spanner (as shown in Figure 2) and sub-spanner (as shown in Figure 3).Its assistor is made of boosting-rod and ratchet.The top and bottom of ratchet have protecting cover, and the protecting cover central part has circular hole.The central part of ratchet has hexagon ring, and protecting cover is bound up by the coupking shaft on the boosting-rod up and down.There is a secondary boosting-rod on the left side of protecting cover up and down.Its spanner just at one end has the hexagonal sleeve pipe, and the bottom has hexad edge rod.Spanner attaches sub-spanner, and sub-spanner appearance has six five equilibrium faces, and there is hexagon ring the centre.The six five equilibrium faces and the spanner hexagonal sleeve pipe of spanner are complementary.Using method of the present utility model is: when needs dismounting lug nut, earlier the hexad edge rod with spanner is sleeved in the hexagon ring of ratchet, again with the hexagonal casing pipe sleeve of spanner on split loading nut.Can select different sub-spanners according to the different size of split loading nut.Sub-spanner is sleeved in the hexagonal sleeve pipe of spanner, is enclosed within again on the split loading nut.At this moment, the ratchet of boosting-rod front end is against on the hook tooth.Pull boosting-rod then, nut is rotated, when reaching certain position and be awkward, boosting-rod is rotated round about, return to the handled easily position.The ratchet of this moment props up another ratchet, pulls boosting-rod again and carries out dismounting, until nut is pulled down or loaded onto.The utility model is simple in structure, and is reasonable in design, as long as spanner is entangled nut, just can once unload during dismounting, must not lift down again and again, inferior again installing.Both saved time, laborsaving again, be specially adapted to night time operation, more convenient quick.It is a kind of desirable tire screw spanner.

Description of drawings

Accompanying drawing is the utility model structural representation

Wherein:

Fig. 1 is the utility model assistor structural representation

The last protecting cover 2-of 1-wears protecting cover under the pin 3-coupking shaft 4-boosting-rod 5-ratchet 6-

Fig. 2 is the utility model associated spanner structural representation

7-hexad edge rod 8-hexagonal sleeve pipe

Fig. 3 is the supporting sub-spanner structure scheme drawing of the utility model

9-six five equilibrium faces

The specific embodiment

Structure of the present utility model is as shown in drawings: be made of assistor, spanner and the sub-spanner supporting with it.Assistor wherein has a ratchet (5) as shown in Figure 1 in assistor inside, protecting cover on (1) is arranged on ratchet (5), and protecting cover (6) is once arranged below, and the protecting cover central part has circular hole.The central part of ratchet has a hexagon ring.In protecting cover one side one boosting-rod (4) is arranged, the bottom of boosting-rod has ratchet.On protecting cover right side up and down one hole is arranged, a coupking shaft (3) is arranged in the hole.By coupking shaft boosting-rod and protecting cover are connect.Pin (2) is worn on protecting cover top up and down.Spanner of the present utility model is as shown in Figure 2: have hexagonal sleeve pipe (8) at the one end, the bottom of sleeve pipe has hexad edge rod (7).Sub-spanner of the present utility model as shown in Figure 3, as with hexagonal sleeve kit spare.Its surface has six five equilibrium faces (9), and portion has hexagon ring within it.

Claims (2)

1, the tire screw convenient wrench, it is characterized in that by assistor, spanner and the sub-spanner supporting with it constitute, the structure of its assistor is that a ratchet (5) is arranged in assistor inside, protecting cover on one (1) is arranged on ratchet (5), protecting cover (6) is once arranged below, in protecting cover one side one boosting-rod (4) is arranged, the bottom of boosting-rod has ratchet, in the protecting cover right ports coupking shaft (3) is being arranged up and down, by coupking shaft boosting-rod and protecting cover are connect, pin (2) is worn on protecting cover top up and down, its spanner one end has hexagonal sleeve pipe (8), the bottom of sleeve pipe has hexad edge rod (7), has six five equilibrium faces (9) with the surface of the supporting sub-spanner of spanner, and portion has hexagon ring within it.

2, convenient wrench according to claim 1 is characterized in that the ratchet central part in the said assistor has a hexagon ring.

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