CN104162870B - Combined type internal hexagonal wrench extension bar - Google Patents

Abstract

The invention discloses a combined hex wrench booster rod, which includes a handle, a cylindrical rod, a cylindrical rod head, a rotary pressure sleeve, a push rod, a spring and a hexagonal block; Combining slots for splicing blocks, holes for placing hexagonal wrench, and fixing holes for ejector rods; one end of the ejector rod is provided with a hemispherical head and a spring seat; Columns and sets of holes. The device of the present invention is simple in structure and extremely convenient to operate, eliminating the need for various extra force tools to be carried when in use, and the device has the function of a force bar corresponding to various types of hexagonal wrenches at one time.

Description

Combined hex wrench booster rod

technical field

The invention relates to a combined internal hexagonal wrench reinforcing rod, in particular to an internal hexagonal wrench reinforcing rod with various models.

Background technique

In the process of installing and maintaining equipment, a hexagonal wrench is used to tighten the screws. The existing hexagonal wrench is set in a style with one end long and the other end short. When the nut of the screw falls to the outside, the long end of the hexagonal wrench is sufficient. A small afterburner rod, but when the screw is deeply sunken in the hole, the worker will find that the tightness cannot be tightened, and the looseness cannot be delivered. It is quite laborious to rotate the short end of the hexagonal wrench by hand. It is desirable to have extended afterburners to simplify the workload.

Contents of the invention

The object of the present invention is to provide a combined allen wrench booster rod to address the deficiencies in the prior art.

In order to achieve the above-mentioned purpose, the method that the present invention adopts is: combined type internal hex wrench booster rod, including handle, cylindrical rod, cylindrical rod head, rotary pressure sleeve, ejector rod, spring and hexagonal splicing block; The inner side of the rod head is provided with combined grooves of splicing blocks arranged at intervals, a hole for placing a hexagonal wrench and a fixing hole for the ejector rod; one end of the ejector rod is provided with a hemispherical head and a spring seat; There are pressure rod slopes, push rod limit bars and sleeve holes; the rotary pressure sleeve is worn on the cylindrical rod through the sleeve hole, and one end of the cylindrical rod is connected to the fixed handle through threads, and the other end is connected to the cylindrical rod head. The hexagonal block is placed in the combined slot of the combined block, the size is from left to right, and the corresponding models are from large to small. The hexagonal wrench placement hole separates the combined slot of the combined block, and the different hole diameters limit the placement of the hexagonal wrench Dimensions, one end of the ejector rod is a hemispherical head, the other end passes through the fixing hole and is connected with the arc surface of the back of the hexagonal block, the spring seat is fixed at the lower end of the ejector rod hemispherical head, and the spring is sleeved on the top On the rod, located between the spring seat and the outer surface of the cylindrical rod head, the hemispherical head of the ejector rod is in contact with the inclined surface of the pressing rod of the rotary press sleeve, and the ejector rod limiting column limits the left and right displacement of the ejector rod.

As a preference, the limiting angle of the ejector pin limiting column is 30°.

As a preference, the combined models of the hexagonal pieces become smaller from left to right.

Preferably, the push rod only moves up and down and is reset by a spring.

Beneficial effect:

The device of the present invention is simple in structure, extremely convenient to operate, and saves various extra force tools that need to be carried when in use.

Description of drawings

Fig. 1 is the combined structure schematic diagram of device of the present invention;

Fig. 2 left side view of the rotary pressure sleeve of the device of the present invention;

Fig. 3 schematic diagram of the structure of the outer surface of the cylindrical rod head of the device of the present invention;

The unused state schematic diagram of Fig. 4 device of the present invention;

Fig. 5 is a schematic diagram of the use state of the device of the present invention;

Among them, 1-handle, 2-cylindrical rod, 3-cylindrical rod head, 4-rotary pressure sleeve, 5-ejector, 6-spring, 7-hexagonal splicing block, 31-combining slot of splicing block, 32-hexagonal wrench placement Hole, 33-ejector rod fixing hole, 41-depression rod slope, 42-ejector rod limit bar, 43-sleeve hole, 51-hemispherical head, 52-spring seat.

Detailed ways

The present invention will be further illustrated below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in Figures 1 to 4, the combined hexagon wrench booster rod includes a handle 1, a cylindrical rod 2, a cylindrical rod head 3, a rotary pressure sleeve 4, a push rod 5, a spring 6 and a hexagonal block 7; The inner side of the cylindrical rod head 3 is provided with a combination groove 31 of splicing blocks arranged at intervals, a hexagonal wrench placement hole 32 and a push rod fixing hole 33; one end of the push rod 5 is provided with a hemispherical head 51 and a spring seat 52; The inside of the rotary press sleeve 4 is provided with a pressure rod slope 41, a push rod limit column 42 and a sleeve hole 43; One end of 2 is screwed to fix the handle 1, and one end is connected to the cylindrical rod head 3. The hexagonal split block 7 is placed in the combined groove 31 of the split block. The size is from left to right, and the corresponding models are from large to small. The hexagonal wrench placement hole 32 separates the combined groove 31 of the splicing block, and the different apertures also limit the placement size of the hexagonal wrench. One end of the push rod 5 is a hemispherical head 51, and the other end passes through the fixing hole 33 and the hexagonal splicing. The back arc surface of block 7 is connected, and described spring seat 52 is fixed on the lower end of hemispherical head 51 of push rod 5, and described spring 6 is sleeved on the push rod 5, is positioned at spring seat 52 and the outer surface of cylindrical rod head 3 Between them, the hemispherical head 51 of the ejector rod 5 is in contact with the pressing rod slope 41 of the rotary press sleeve 4 , and the ejector rod limit bar 42 restricts the left and right displacement of the ejector rod 5 .

Further, the rotary compression sleeve 4 is moved to the cylindrical rod head 3 so that the ejector rod 5 is located between the ejector rod limiting columns 42 .

Further, the rotary pressure sleeve 4 can be rotated at an angle of 30°. When rotating, one end of the push rod 5 moves on the slope 41 of the push rod, the push rod 5 gradually moves downward, and the spring 6 compresses downward, and the connected hexagonal block 7 also spliced inwardly into hexagonal cover simultaneously, just can use as afterburner bar this moment.

Further, when the rotary pressure sleeve 4 is reversely rotated at an angle of 30°, the compressed spring 6 returns to its original shape, and the ejector rod 5 is lifted up, and the spliced hexagonal pieces 7 are separated again, and the hexagonal wrench is released.

Claims (4)

1. A kind of 1. Combined type internal hexagonal wrench extension bar, it is characterised in that：Including handle（1）, cylindrical bar（2）, cylinder head （3）, rotation pressing sleeve（4）, mandril（5）, spring（6）And hexagonal split block（7）；In the cylinder head（3）Inner side set There is spaced split block combination slot（31）, die nut putting hole（32）And mandril mounting hole（33）；On the top Bar（5）One end be equipped with hemispherical head（51）And spring base（52）；In the rotation pressing sleeve（4）Be internally provided with compression bar inclined-plane （41）, mandril position limiting fence（42）And sets of holes（43）；The rotation pressing sleeve（4）Pass through sets of holes（43）It is through cylindrical bar（2）On, The cylindrical bar（2）One end be connected through a screw thread fixed handle（1）, one end connecting cylinder head（3）, the hexagonal split Block（7）It is placed on split block combination slot（31）It is interior, size from left to right, corresponding model from big to small, the mandril（5）'s One end is hemispherical head（51）, the other end passes through mandril mounting hole（33）With hexagonal split block（7）The connection of back cambered surface, it is described Spring base（52）It is fixed on mandril（5）Hemispherical head（51）Lower end, the spring（6）It is sleeved on mandril（5）On, positioned at spring Seat（52）And cylinder head（3）Outer surface between, the mandril（5）Hemispherical head（51）With rotation pressing sleeve（4）Compression bar Inclined-plane（41）Contact, the mandril position limiting fence（42）Limit mandril（5）Left and right displacement.
2. 2. Combined type internal hexagonal wrench extension bar according to claim 1, it is characterised in that：The mandril position limiting fence （42）Spacing angle be 30 ° of angles.
3. 3. Combined type internal hexagonal wrench extension bar according to claim 1, it is characterised in that：The hexagonal split block （7）Split after model from left to right, diminish successively.
4. 4. Combined type internal hexagonal wrench extension bar according to claim 1, it is characterised in that：The mandril（5）Only Upper and lower displacement, passes through spring（6）Reset.