CN2320376Y - Screw ratchet screw-driver bit - Google Patents

Abstract

The utility model relates to a screwdriver for screws on spiral ratchets, which can be used for fixing various screws. A screwdriver head can be changed for screwing or unscrewing different screws with cross heads, figure-one heads, etc. A spanner with a liner sleeve and a bent rod with a hook and a torsion spring piece are fixed on a cavity composed of a front cover and a back cover, and a screw rod with a spring and a top seat is arranged in the cavity. A left ratchet wheel and a right ratchet wheel which are separated by septa are connected in a main tube on the screw rod, and the other end of the bent rod is fixed on the main tube on which a casing tube is sheathed. A reversal knob is connected to the casing tube, and a clamping head is fixed on a screw rod which is connected with a magnetic block. The front cover and the back cover are connected into a whole, and the cavity which is formed at the handle and the upper cover plate of the front cover form an empty cavity box which is used for storing the head of the screw-driver tool. The head of the screw-driver tool is only inserted into the clamping head and then can be tightly attracted by the magnetic block. The head of the screw-driver tool can be exchanged quickly, so the utility model has the advantages of easy use, convenient carrying and high work efficiency.

Description

The spiral ratchet screw revolves tool

The utility model relates to a kind of hand-operated tools, is suitable for fastening various screw and nut especially, and the spiral ratchet screw that screws or unclamp that can be used for different screws such as crosshead, manifold and nut by the various rotating tool head of conversion revolves tool.

Number of patent application 97224936.2 " the spiral ratchet screw revolves tool " also provide a kind of and can directly carry, deposit rotating tool head, easy to use, work efficiency is high, can a tool use more revolve tool.But it also needs to help just can finish by instrument when the various rotating tool head of transposing, and it is convenient not enough therefore to use.

The purpose of this utility model is to provide a kind of and can directly carries, deposits rotating tool head, use is more convenient, work efficiency is higher, does not need instrument just can change various rotating tool heads arbitrarily, and the spiral ratchet screw of can a tool using by the various rotating tool heads of conversion revolves tool more.

The utility model is to realize like this; The spiral ratchet screw revolves tool by the spanner that has liner, cover with have drag hook, the knee of torsion spring spare is fixed on the cavity that is made of forward and backward lid, and also form a lower chamber at the handle place, also have a cover plate and handle place lower chamber formation cavity box in the outside, handle place of protecgulum.In the cavity in addition with the screw rod of footstock, spring, be connected with left and right ratchet in the person in charge on the screw rod and separated by partition, the end in addition of knee is fixed on outer being with on the person in charge of sleeve pipe with pin, is connected with the commutation button on the sleeve pipe, the chuck that is with lining is fixed on the screw rod, also is connected with magnetic patch on the screw rod.

Accompanying drawing, structural representation of the present utility model.

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

Magnetic patch (4) is for handling the disc of making by NdFeB material through chrome-faced.

Protecgulum (13), bonnet (11) by rifle formula shape connect the lower chamber that forms upper cavity and handle place in aggregates with screw.There are a cover plate (15) and handle place cavity of resorption to constitute the cavity box in the outside, protecgulum (13) handle place.The spanner (20) of the below of upper cavity alignment pin fixed band liner (19), cover (21), knee (18) one ends are fixed on the handle place of cavity below by button spring spare (17), drag hook (16), the other end of knee (18) is fixed on pin: be with outward on the person in charge (6) of sleeve pipe (10), be connected with spacer, commutation button (9) on the sleeve pipe (10).

Screw rod (23) is a helical screw, and left and right ratchet (7), (8) are enclosed within the person in charge (6) on the screw rod (23), and insertion partition (22) separately can not rotate it simultaneously in the left and right ratchet (7) on being responsible for (6), the through hole between (8).Preceding screw (5) is enclosed within on the front end of screw rod (23), and the outside is connected with the person in charge (6) with screw thread.Screw rod (23) rear end is with spring (12), and terminal the insertion in the footstock (14) is glued with magnetic patch (4) on the front end face of screw (23), and chuck (2) rear end is with lining (3), is fixed on pin on the periphery of screw rod (23).

During use, a needed rotating tool head (1) is directly inserted in the chuck (2), by the magnetic patch (4) in the chuck (2) it is sucked, remaining rotating tool head leaves in the cavity box at handle place.Move to anterior locations if will screw the screw button (9) that then will commutate, block left ratchet (7) and do not rotate, make right ratchet (8) drive screw rod (23) and work.At this moment constantly use palm wrench (20), spanner (20) promotes knee (18), driving the person in charge (6) moves forward and backward, make the linear reciprocating motion of the person in charge (6), right ratchet (8) in being responsible for (6) converts the right rotation of screw rod (23) to and rotates, and finishes the purpose that screws screw under the effect of spring (12) power.

Just can unclamp screw on the contrary with above-mentioned action, specifically not describe in detail.

The utility model is compared with prior art: because screw rod is helical screw, therefore press spanner, just Make the rotating tool head on the screw rod rotate forward or backwards more than one pitch. Faster than generally revolving tool, so the worker Effect is high, easy to use. Because also being glued with magnetic patch on the screw rod end face in the chuck, can suck the insertion chuck in addition Interior various rotating tool heads do not need to clamp rotating tool head with instrument by the steel ball on the chuck and jump ring, therefore Transposing, use are rapidly. Because magnetic patch is arranged in the chuck, some primary nuts are just very easy to be sucked, can not fall down, is convenient to Operation especially screws the primary nut of higher position or installs and removes rapidly screw in narrow and small place, more manifests it Superiority.

Claims (3)

1. a spiral ratchet screw revolves tool, by having liner (19), overlap the spanner (20) of (21) and have drag hook (16), before the knee (18) of torsion spring spare (17) is fixed on, bonnet (13), (11) on the cavity of Gou Chenging, and also form a lower chamber at the handle place, also have a cover plate (15) and handle place cavity to constitute the cavity box in the outside, protecgulum (13) handle place, be with footstock (14) in the cavity in addition, the screw rod (23) of spring (12), be connected with a left side in the person in charge (6) on the screw rod (23), right ratchet (7), (8) and by partition (22) separate, knee (18) end in addition is fixed on the person in charge (6) who is with sleeve pipe (10) with pin, sleeve pipe (10) is gone up and is connected commutation button (9), the chuck (2) that is with lining (3) is fixed on the screw rod (23), it is characterized in that also being connected with on the screw rod (23) magnetic patch (4).

2. the tool that revolves according to claim 1, the forward and backward lid (13), (11) that it is characterized in that rifle formula shape connects in aggregates with screw, form the lower chamber at upper cavity and handle place.

3. the tool that revolves according to claim 1, it is characterized in that chuck (2) is fixed on the periphery of screw rod (23) with pin, be glued with magnetic patch (4) on the front end face of the screw rod (23) in chuck (2), magnetic patch (4) is for handling the disc of making by NdFeB material through chrome-faced.

Images