CN202241027U

CN202241027U - Wrench for assembling and disassembling screws

Info

Publication number: CN202241027U
Application number: CN2011203664260U
Authority: CN
Inventors: 晋跃
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2012-05-30
Anticipated expiration: 2021-09-29

Abstract

The utility model discloses a wrench for assembling and disassembling screws. The wrench comprises a wrench handle and a fixed seat hinged with the two ends of the wrench handle, wherein a nut sleeve is arranged on the fixed seat; an upper plum blossom-shaped hole and a lower plum blossom-shaped hole are formed in an inner ring of the nut sleeve; and a ratchet mechanism is arranged on an outer ring of the nut sleeve. The upper and lower plum blossom-shaped holes are formed in the inner ring of the nut sleeve, so that the requirement of assembling and disassembling the screws of different dimensions can be met; the ratchet mechanism is arranged on the outer ring of the nut sleeve, so that the nut sleeve is driven to rotate in a single-direction clearance manner in the negative and positive directions; and compared with the prior art, the wrench has a simple and compact structure and high integral operability and has the advantages of reducing the labor intensity of workers and improving working efficiency.

Description

A kind of screw wrench for dismounting

Technical field

The utility model relates to a kind of dismantling device, relates in particular to a kind of screw wrench for dismounting.

Background technology

Spanner is the instrument that is used to tighten or unscrew screw, nut, utilizes lever principle to twist bolt, screw, nut and other screw threads and tightly holds the opening of bolt or nut or the hand tools of trepanning firmware.Apply external force along the screw thread rotation direction at shank during use, just can twist bolt or nut.Spanner structural carbon steel commonly used and structural alloy steel manufacturing.

Bolt is all used in the coupling part of present most of mechanical device; At present generally adopt fork spanner, double offset ring spanner, combination wrenches, common adjustable wrench and double end ratchet spanner to carry out the dismounting of bolt, yet one can not satisfy the requirement of the fast assembling-disassembling of many specifications screw to spanner.

The utility model content

The purpose of the utility model is to address the above problem, and a kind of screw wrench for dismounting is provided, and it is the bolt of the multiple model of dismounting more rapidly, not only can save the time of adjustment spanner, can also reduce working strength of workers and increase work efficiency.

The purpose of the utility model is to realize through following technical scheme:

A kind of screw wrench for dismounting comprises spanner handle, and the equal hinged securement seat in said spanner handle two ends is provided with ut socket on the said holder, and the setting of said ut socket inner ring is two plum blossom holes up and down, and its outer ring is provided with ratchet mechanism.

Taper knob is set in the middle of the said spanner handle; Two ends are all through supporting pin hinged securement seat; And a blind hole is respectively opened in said spanner handle both sides; Holder retainer spring assembly and holder locking ball are set in the said blind hole, and said holder two ends are provided with the arc groove that matches and locate with locking ball.

Two ut sockets all are set on the said holder.

Offer the installing hole of ut socket on the said holder, said installing hole lower end is provided with step surface, and the upper end is provided with annular groove, in the said groove jump ring is set, and said ut socket is connected with holder through jump ring.

Said ut socket outer ring is provided with ratchet mechanism; Said ratchet mechanism comprises rectangle ratchet that is arranged on the ut socket periphery and the pawl assembly that matches with it; Said pawl assembly comprises ratchet; Said ratchet top is provided with ratchet and dials hand, and is connected through key each other, and ratchet holddown spring assembly is set a side of said ratchet and ratchet compresses steel ball.

The beneficial effect of the utility model is: through ut socket is set on holder, each ut socket inner ring setting is two kinds of plum blossom holes up and down, can satisfy the demand of the screw of dismounting different size; Cooperate the location through retainer spring assembly, positioning ball with arc groove on the holder between spanner handle and the holder, can make spanner be in that the relative spanner handle of the holder at two ends has stable position relation under the off working state; Process the rectangle ratchet through outer ring, can form ratchet mechanism, order about the unidirectional gap rotation that ut socket is made both forward and reverse directions with ratchet at ut socket; The contrast prior art, this spanner structure is simple, compact, high, the favorable integrated operability of operating accuracy, has to reduce labor strength and the advantage of increasing work efficiency.

Description of drawings

According to accompanying drawing and embodiment the utility model is done further explain below.

Fig. 1 looks sketch map for the master of the described a kind of screw wrench for dismounting of the utility model;

Fig. 2 is the partial schematic sectional view of the described a kind of screw wrench for dismounting of the utility model;

Fig. 3 looks sketch map for the master of the ut socket shown in Fig. 1;

Fig. 4 is that the B-B shown in Fig. 3 is to cross-sectional schematic.

Among the figure:

1, taper knob; 2, spanner handle; 3, holder; 4, supporting pin; 5, ut socket; 6, retainer spring assembly; 7, locking ball; 8, holddown spring assembly; 9, compress steel ball; 10, jump ring; 11, ratchet is dialled hand; 12, key; 13, ratchet.

The specific embodiment

In Fig. 1～4 illustrated embodiments, the described a kind of screw wrench for dismounting of the utility model comprises spanner handle 2 and taper knob 1; Spanner handle 2 two ends all are hinged with holder 3 through supporting pin 4, and spanner handle 2 both sides respectively have a blind hole, and holder 3 retainer spring assemblies 6 and locking balls 7 are installed in this blind hole; And locking ball 7 matches with the arc groove that holder 3 both sides are offered, and plays positioning action, has the installing hole of two ut sockets 5 on each holder 3; The bottom of installing hole is provided with step surface, and top is provided with annular groove, and a side of installing hole is provided with blind hole; Be provided with ratchet 13 holddown spring assemblies 8 in the blind hole and compress steel ball 9, ut socket 5 inside have the plum blossom hole of two kinds of different sizes up and down, and outer setting has the rectangle ratchet; Ut socket 5 is placed on the step surface of installing hole, jump ring 10 is installed in the groove on top, make ut socket 5 be connected with holder 3; Ratchet 13 is installed in a side of ut socket 5, ratchet is installed is then dialled hand 11, both link to each other through key 12; This spanner structure is simple, compact, high, the favorable integrated operability of operating accuracy, can increase work efficiency and reduces labor strength.

Claims

1. a screw wrench for dismounting comprises spanner handle (2), it is characterized in that; The equal hinged securement seats in said spanner handle (2) two ends (3); Ut socket (5) is set on the said holder (3), and said ut socket (5) inner ring setting is two plum blossom holes up and down, and its outer ring is provided with ratchet mechanism.

2. a kind of screw wrench for dismounting according to claim 1; It is characterized in that; In the middle of the said spanner handle (2) taper knob (1) is set, two ends are all through supporting pin (4) hinged securement seat (3), and a blind hole is respectively opened in said spanner handle (2) both sides; Holder retainer spring assembly (6) and holder locking ball (7) are set in the said blind hole, and said holder (3) two ends are provided with the arc groove that matches and locate with locking ball (7).

3. a kind of screw wrench for dismounting according to claim 1 is characterized in that, two ut sockets (5) all are set on the said holder (3).

4. a kind of screw wrench for dismounting according to claim 1; It is characterized in that; Offer the installing hole of ut socket (5) on the said holder (3), said installing hole lower end is provided with step surface, and the upper end is provided with annular groove; Jump ring (10) is set in the said groove, and said ut socket (5) is connected with holder (3) through jump ring (10).

5. a kind of screw wrench for dismounting according to claim 1; It is characterized in that said ut socket (5) outer ring is provided with ratchet mechanism, said ratchet mechanism comprises rectangle ratchet that is arranged on ut socket (5) periphery and the pawl assembly that matches with it; Said pawl assembly comprises ratchet (13); Said ratchet (13) top is provided with ratchet and dials hand (11), and is connected through key (12) each other, and ratchet holddown spring assembly (8) is set a side of said ratchet (13) and ratchet compresses steel ball (9).