CN102896605A

CN102896605A - Triangular-head three-tooth valve spanner

Info

Publication number: CN102896605A
Application number: CN2012104305777A
Authority: CN
Inventors: 章世斌; 张贵良; 吴有维; 王勇; 王军; 白晓伟
Original assignee: 章世斌
Priority date: 2012-11-01
Filing date: 2012-11-01
Publication date: 2013-01-30

Abstract

The invention discloses a triangular-head three-tooth valve spanner. The spanner consists of a triangular head (4), and a tooth I (1), a tooth II (2), a tooth III (3) and an elbow (5) which are provided with threads, a long arm (6) and a handle (7), wherein square holes with different side lengths are formed in the triangular head (4). Under the condition that a hand wheel of a valve is damaged or missed, a valve rod of the valve is clamped by the holes in the triangular head (4) to directly open or close the valve; by using the elbow (5), the long arm (6) can be translated for a half of the length of the teeth relative to the triangular head (4), so that an acting force plane of the long arm (6) can get closest to a plane in which a maximum outer circle of the hand wheel of the valve is located; due to the cylindrical handle (7), the comfort of an operator is improved; due to the holes in the triangular head (4), a hole in the elbow (5), a groove in the long arm (6) and the hollow design of the cylindrical handle (7), the weight of the whole spanner is reduced, and the labor intensity of the operator is reduced.

Description

A kind of trigonocephalia three tooth tap wrenches

Technical field

The invention belongs to hardware ﹠ tools, relate to a kind of spanner, and be particularly related to a kind of tap wrench.

Background technology

The industries such as oil, petrochemical industry, chemical industry, metallurgy, electric power, water conservancy, urban construction, machinery, coal, food need a large amount of pipeline valves to control and operate at present, because economy, the durability of manually-operated gate and the flexibility of controlling, still adopted by most enterprises, these manually-operated gates are depended merely on hand and are rotated handwheel, often are difficult to open or close.Although the Simple spanner that has in the market " F " shape two tooth spanners or enterprise oneself to make, but lack non-skid feature, spanner is difficult to be fixed on fast on the handwheel, makes troubles to the operator, can not open rapidly or valve-off, bring personal injury under desperation even to the operator; In addition, after valve handle damaged or lacks, general tap wrench can't open or cut out, and must open or valve-off by other instrument, brings great inconvenience to the operator.Utility model patent (ZL2012200606639) discloses a kind of anti-skidding and tap wrench that can open or close continuously fast, in actual use, the purpose that really can reach anti-skidding and open or close fast, but new problem has also appearred, be flat such as handle, the operator feels holding uncomfortable during operation, and the comfortableness of operation awaits further to improve; When valve handle damaged or lack, this utility model tap wrench was helpless equally in addition.The present invention has carried out further improvement on the basis of utility model patent (ZL2012200606639), so that the design of tap wrench is more reasonable, function is more, outward appearance is more beautiful.

Summary of the invention

The present invention is directed to the shortcoming of existing tap wrench technology, proposed a kind of simple in structure, easy to operate modified trigonocephalia three tooth tap wrenches.

Technical scheme of the present invention is:

A kind of trigonocephalia three tooth tap wrenches are comprised of three on the trigonocephalia 4 threaded tooth I 1, tooth II 2, tooth III 3, elbow 5, long handle 6, handles 7.

Trigonocephalia 4 is flat pattern, increases flexural strength.On the trigonocephalia 4 perforate is arranged, be the different square perforate of the length of side, the size of its square length of side according on the valve door club head fixedly the size range of the square conehead of handwheel determine, its objective is in the situation that valve handle damages or lacks, can directly block valve door bar with the perforate on the tap wrench trigonocephalia 4 of the present invention, and then directly open or valve-off.The length of side of square opening a, b, c, d, e, f, g, h pass is a＜b＜c＜d＜e＜f＜g＜h on the trigonocephalia 4, the center superposition of square opening a and b, the center superposition of c and d, the center superposition of e and f, the center superposition of g and h, its center are all on the symmetrical plane of tap wrench.The corresponding sides of square opening a, c, e, g are parallel to each other, and the corresponding sides of b, d, f, h are parallel to each other, 45 ° each other of cornerwise angles of the diagonal of square opening a, c, e, g and b, d, f, h.Another purpose of perforate is the weight that alleviates spanner on the trigonocephalia 4, reduces operator's labour intensity.Perforate on the trigonocephalia 4 and revocable 8 square openings can be individual for random natural number, and its principle is under the prerequisite that guarantees spanner intensity, adapts to the size of square conehead on the wide as far as possible valve door bar, also alleviates as far as possible the weight of spanner simultaneously.

Elbow 5, long handle 6 are flat pattern, increase flexural strength, elbow 5 is emptied mid portion under the prerequisite of proof strength, alleviate the weight of spanner, long handle 6 plays the effect of transmission power, under the prerequisite of proof strength, it is designed to have the handle of symmetrical grooves, alleviates the weight of spanner, thereby reduce operator's labour intensity.Elbow 5 realize long handles 6 with respect to trigonocephalia 4 to 1/2nd of the direction translation tooth II 2 of tooth or tooth III 3 length, thereby the active force plane that makes long handle 6 is as far as possible near the plane at the maximum cylindrical of valve handle place.

Handle 7 is cylindrical, improves the comfortableness that operating personnel hold, and under the prerequisite of proof strength, its indoor design is hollow, alleviates the weight of spanner, reduces operator's labour intensity.

On tooth I 1, tooth II 2, the tooth III 3 screw thread is arranged, when opening or closing valve, tooth I 1 and tooth II 2, tooth III 3 will be blocked the handwheel on the valve, and the screw thread on it then plays anti-skidding effect; Tooth I 1 is on the perpendicular bisector of tooth II 2 and tooth III 3, the length of tooth I 1, tooth II 2, tooth III 3 and tooth I 1 are determined according to the diameter of valve handle cylindrical with the distance of tooth II 2, tooth III 3, can come accordingly spanner is carried out branch, such as trumpet, medium size, large size, small size spanner is used for the valve that switch uses small-sized handwheel in the certain limit, the medium size spanner is used for the valve that switch uses medium-sized handwheel in the certain limit, and the large size spanner is used for the valve that switch uses large-scale handwheel in the certain limit; Tooth I 1, tooth II 2, tooth III 3 can be cylinder, Elliptic Cylinder or other shape.

Tooth I 1, tooth II 2, tooth III 3, trigonocephalia 4, elbow 5, long handle 6 and handle 7 adopt contour forging technique, and be one-body molded, the metal or metal alloy that material selection intensity is large, toughness is strong and wear-resisting.

Beneficial effect of the present invention:

When the handwheel of valve damages or lacks, still can directly open or close with the square opening on the spanner trigonocephalia 4 of the present invention, and need not by other instrument, bring great convenience to the operator.

Cylindrical handle 7 has improved the comfort level that operating personnel hold spanner greatly, has alleviated the labour intensity of controlled valve.

Elbow 5 is transferred to operation forces on the plane of taking turns near the maximum cylindrical of valve handle, makes controlled valve more steady, is convenient to simultaneously utilize the square opening on the trigonocephalia 4 to come controlled valve.

The hollow design of the perforate on the perforate on the trigonocephalia 4, the elbow 5, the groove on the long handle 6 and cylindrical handle 7, guaranteeing that spanner is subjected under the prerequisite of force intensity, alleviate the weight of whole spanner, improved the comfortableness of operation, reduced operating personnel's labour intensity.

Description of drawings

Be described in further detail below in conjunction with the specific embodiment of accompanying drawing to a kind of trigonocephalia three tooth tap wrenches of the present invention, wherein:

Fig. 1 is the three-dimensional view of a kind of trigonocephalia three tooth tap wrenches of the present invention;

1---tooth I, 2---tooth II, 3---tooth III, 4---trigonocephalia, 5---elbow, 6---long handle, 7---handle;

Fig. 2 is the top view of a kind of trigonocephalia three tooth tap wrenches of the present invention;

Fig. 3 is the side view of a kind of trigonocephalia three tooth tap wrenches of the present invention;

Fig. 4 is the partial enlarged view of a kind of trigonocephalia three tooth tap wrench trigonocephalias 4 of the present invention.

The specific embodiment

When opening or closing valve, valve handle is stuck in tooth I 1 and the tooth II 2 of these trigonocephalia three tooth tap wrenches, between the tooth III 3, tooth I 1 is inboard at valve handle, tooth II 2, tooth III 3 coexists outside the valve handle, two faces of trigonocephalia 4 withstand on the valve handle, play the effect of back-up wrench, pull clockwise handle 7, under the effect of tooth I 1 and tooth II 2, driving valve handle rotates clockwise, counterclockwise pull handle 7, under the effect of tooth I 1 and tooth III 3, drive valve handle and counterclockwise rotate, close or the purpose of Open valve thereby play, tooth I 1, tooth II 2, screw thread on the tooth III 3 plays the effect that prevents spanner landing from the valve handle, reaches the purpose of further back-up wrench.When valve handle damages or during disappearance, with this trigonocephalia three tooth tap wrenches upset, select suitable square opening on the trigonocephalia 4 to block square conehead on the valve door bar, be rotated the unlatching that can realize valve or close.

Claims

1. trigonocephalia three tooth tap wrenches are comprised of trigonocephalia (4) and threaded tooth I (1), tooth II (2), tooth III (3) and elbow (5), long handle (6), handle (7), it is characterized in that:

The different square perforate of the length of side is arranged on the described trigonocephalia (4);

Described elbow (5) realize long handle (6) with respect to trigonocephalia (4) to 1/2nd of the direction translation tine length of tooth;

Described handle (7) is the cylindrical of hollow.

2. a kind of trigonocephalia three tooth tap wrenches according to claim 1, it is characterized in that: the perforate (a) on the described trigonocephalia (4), (b), (c), (d), (e), (f), (g), (h) be the different square of the length of side, it is (a)＜(b)＜(c)＜(d)＜(e)＜(f)＜(g)＜(h) that its length of side is closed, square opening (a) and center superposition (b), (c) with (d) center superposition, (e) with (f) center superposition, (g) with (h) center superposition, its center is all on the symmetrical plane of tap wrench, square opening (a), (c), (e), (g) corresponding sides are parallel to each other, (b), (d), (f), (h) corresponding sides are parallel to each other, square opening (a), (c), (e), (g) diagonal with (b), (d), (f), (h) 45 ° each other of cornerwise angles.

3. a kind of trigonocephalia three tooth tap wrenches according to claim 2 is characterized in that: the perforate on the described trigonocephalia (4) and revocable 8 square openings can be random natural number.

4. a kind of trigonocephalia three tooth tap wrenches according to claim 1, it is characterized in that: described elbow (5) is flat pattern, and mid portion is emptied, realize long handle (6) with respect to trigonocephalia (4) to 1/2nd of the direction translation tine length of tooth.

5. a kind of trigonocephalia three tooth tap wrenches according to claim 1, it is characterized in that: described long handle (6) is flat pattern, has symmetrical groove on it.

6. a kind of trigonocephalia three tooth tap wrenches according to claim 1 is characterized in that: described handle (7) is cylindrical for hollow.

7. a kind of trigonocephalia three tooth tap wrenches according to claim 1, it is characterized in that: described tooth I (1), tooth II (2), tooth III have screw thread on (3), tooth I (1) is on the perpendicular bisector of tooth II (2) and tooth III (3), and the length of tooth I (1), tooth II (2), tooth III (3) decides according to the relative dimensions scope of valve handle.

8. a kind of trigonocephalia three tooth tap wrenches according to claim 1 is characterized in that: whole spanner adopts contour forging technique, and is one-body molded, the metal or metal alloy that material selection intensity is large, toughness is strong and wear-resisting.