CN2294811Y

CN2294811Y - Steady monkey wrench

Info

Publication number: CN2294811Y
Application number: CN 96204838
Authority: CN
Inventors: 黄岩渠; 王红恋
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-25
Filing date: 1996-03-25
Publication date: 1998-10-21
Anticipated expiration: 2006-03-25

Abstract

The utility model relates to a steady type monkey wrench. The utility model is composed of a main body, a movable block, a screw rods and a bolt column. The main body is divided into a handle, a frame part, and a working head part, wherein, the top end of the working head part is provided with a rectangular hole; a crosspiece at the lower end abutted with the frame part is provided with the rectangular hole placed with a movable gear strip; the frame part and the left side face of an opening part are at the same plane, and the plane is provided with a concave groove can cause the gear strip to slide; the concave groove is upwards extended to the top end of the rectangular hole; the movable block is composed of the gear strip provided with an inclined plane and the gear strip provided with a force stressed flat; the middle parts of the upper face and the lower face of the frame part are respectively provided with a screw hole; the screw rods are arranged in the middle part of the frame part, and the screw rods are tightly screwed by the screw holes through a bolt column; the gear strips are inserted in the rectangular hole and the gear strips are respectively meshed with screw rods.

Description

The steady type monkey wrench

The utility model relates to a kind of machine tool, particularly a kind of pincers worker hand tools.

Spanner commonly used is divided into two classes, one class is a back-up wrench, it promptly is the spanner that uses corresponding specification at certain specification nut, sit in the right seat separately, its advantage is that steadiness is good, the nut stripped thread can not occur and cause six-sided nut to become circular phenomenon, but the user must be furnished with the spanner of all size, there is not versatility between the different size spanner, so its investment price is than high.Another kind of is monkey wrench, promptly the moving screw by mobile spanner is to drive the movable block move left and right to be applicable to the nut of different size, its advantage is that versatility is good, a spanner goes for multiple nut, and the investment price is than low, but its steadiness, poor reliability, screw rod only is the unidirectional point restriction to movable block, rock greatly, particularly its shaking degree can not diminish and weakens with nut, so occur the stripped thread phenomenon during to small-sized nut use easily.

The purpose of this utility model is to overcome the deficiency of existing monkey wrench, collects the advantage separately of fixed and movable spanner, and a kind of versatility that promptly has is provided, and has stability again; Promptly overcome the phenomenon of monkey wrench, movable block is taken place because of the phenomenon that comes off accidentally the easy stripped thread of primary screw, and the high steady type monkey wrench of the ratio of performance to price.

The utility model is made up of main body, movable block, screw rod and hitching post, and main body is divided into handle, frame portion and work head, and the bottom that it is characterized in that main body is a handle, and the centre is a frame portion, and top is the work head; Have on the work head and have rectangular opening from top to bottom, have two rectangular openings of the activity tooth bar of packing into separately on the strut rail adjacent of lower end with frame portion, the peristome left side of last rectangular opening, bottom left rectangular opening and work head has the groove (chute) of a sliding rack, and the bottom of groove is on the same vertical plane from top to bottom; Movable block is made up of the tooth bar of band hypotenuse and the tooth bar of band weighted table; Respectively there is a screw at the middle part, top and bottom of frame portion; The rectangular opening on the left side inserts the tooth bar on band inclined-plane, and the rectangular opening on the right inserts the tooth bar that top has the weighted table that moves up and down, and screw rod is contained between two tooth bars, is screwed by the mesopore of hitching post by screw and bolt to screw down, and screw engages is between two movable tooth bars.

Rotating screw bolt can move up and down two tooth bars, drives a weighted table and an inclined-plane and moves up and down the width that the spacing that makes peristome equals the nut opposite side that acted on.Owing to adopted chute, double rack (each tooth bar about all be the face constraint) to restrict rocking of movable block with screw rod three-dimensional limit property, movable block can only be slided up and down when work, replaced the unidirectional restriction of prior art to movable block.So rocking of movable block of the present utility model can reduce to minimum so that greatly improve its steadiness.When the operation primary nut, owing to moving on the inclined-plane tooth bar, its face constraint is stronger, thereby more stable, so can guarantee the stripped thread phenomenon can not occur; When movable block moves on to extreme lower position, because all portion is in the property constraint of face limit, thus it can be regarded as a back-up wrench, and have all advantages of back-up wrench.

The utility model is compared with prior art, and its advantage is:

1. substitute moving of unidirectional point restriction movable block by the property restriction of three-dimensional limit, make rocking of movable block can reduce to minimum, improved steadiness;

2. the operation primary nut can stripped thread, its highly versatile.

Description of drawings:

Figure 1A is the utility model main body figure.Figure 1B is the utility model movable block figure.

Fig. 1 C is the utility model screw rod figure.Fig. 1 D is the utility model hitching post figure.

Front view when Fig. 2 is in highest order for the utility model movable block.

Front view when Fig. 3 is in lowest order for the utility model movable block.

Further specify accompanying drawing in conjunction with the embodiments:

The utility model is formed (Fig. 1) by main body 1, movable block 2, screw rod 3 and hitching post 4.

Main body 1 has handle 5, work head 6 and frame portion 7; Movable block 2 is made up of with the tooth bar 14 that is equipped with weighted table 18 tooth bar 15 on band inclined-plane 17.There is rectangular opening 10 work head 5 upper ends, and the centre is a peristome 19, and there are rectangular opening 12 and 13 in the lower end, and its width is identical with rectangular opening 10; The upper and lower side of frame portion 7 has screw 9 and 8, and the left surface 11 of frame portion 7 and peristome 19 is in same plane, has groove 20 on this plane, and groove 20 extends up to the top of rectangular opening 10, is used for sliding up and down at groove 20 with the tooth bar 15 on inclined-plane 17; Tooth bar 15 inserts frame portion 7 from rectangular opening 13 and groove 20, the tooth bar 14 of band weighted table 18 inserts frame portion 7 from rectangular opening 12, the central authorities that screw rod 3 places frame portion 7 are inserted and screw up to screw 8 through the mesopore 16 of screw rod 3 from screw 9 by hitching post 4, screw rod 3 meshes separately with

tooth bar

15 and 14, at this moment, rotating screw bolt 3 can make

tooth bar

14 and 15 translation stably up and down because

tooth bar

14 and 15 and the edge and the screw rod 3 of frame portion 7 be in the face restriction fully, so can be reduced to minimum level with rocking; In addition, tooth bar 15 upper ends are-60 ° of inclined-planes, and the upper left side of work head 6 also is-60 ° inclined-plane, when moving to the clamping working substance on the

work hour rack

14 and 15, work nut 21 four limits all by four limit restrictions of the utility model peristome to guarantee its steadiness (Fig. 2), when work nut 21 ' very hour, rotating screw bolt 3 makes to move until weighted table 18 on

tooth bar

14 and 15 and rises to highest order, the size of work nut 21 ' is a minimum limit value of the present utility model, at this moment, work nut 21 ' still is in the face restriction, guarantees the steadiness of work equally.

Claims

1. a steady type monkey wrench is made up of main body, movable block, screw rod and hitching post, and main body is divided into handle, frame portion and work head, and work head middle part is a peristome, it is characterized in that:

1. there is a rectangular opening (10) work head (6) upper end, have rectangular opening (12) and (13) of the activity tooth bar of packing into separately on the strut rail adjacent of lower end with frame portion (7), the left surface (11) of frame portion (7) and peristome (19) is in same plane, have the groove (20) of slidably movable tooth bar (15) on this plane (11), groove (20) extends up to the top of rectangular opening (10);

2. movable block (2) is made up of the tooth bar (15) on band inclined-plane (17) and the tooth bar (14) of band weighted table (18);

3. respectively there are a screw (8) and (9) in middle part, the top and bottom of frame portion (7), screw rod (3) is loaded in the middle of the frame portion (7), screw by mesopore (16) to the following screw (8) of hitching post (4) by screw (9) and screw rod (3), be inserted with the tooth bar (15) on band inclined-plane (17) in the rectangular opening (13), rectangular opening (12) is inserted with the tooth bar (14) of band weighted table (18), tooth bar (15) and (14) separately and screw rod (3) mesh.

2. steady type monkey wrench according to claim 1 is characterized in that: rectangular opening (10) is identical with the width of (13).