CN103628735B - Retractable portable fixes inserted link and using method thereof - Google Patents

Abstract

A retractable and portable fixed insertion rod, including a main rod, a tail rod and a thimble, one end of the tail rod is sleeved in the main rod and can slide along the main rod, the main rod is a hollow cylinder, and its cylinder A window communicating with the inner cavity of the main rod is provided on the surface; a lock body is provided inside the main rod, and a groove is provided on the lock body, and the position of the groove corresponds to the window; The thimble is arranged in the main rod and on the upper part of the lock body, and the thimble is connected to the lock body through a spring; a U-shaped steel wire is arranged in the lock body, and one side of the U-shaped steel wire At least a part of the U-shaped steel wire passes through the groove, and at least a part of the other side of the U-shaped steel wire is inserted into the thimble. The invention is convenient for repeated use, facilitates standardized management, and can be widely used in substations within the company.

Description

Retractable and portable fixed insertion rod and method of use thereof

technical field

The invention relates to an insertion rod, in particular to a two-stage retractable and conveniently portable fixed insertion rod.

Background technique

With the development of the urban economy, power supply and heating wells are gradually spreading in the streets and alleys of the city. In practical applications, when the power supply and heating fail or the system needs to be inspected and repaired, it is usually necessary to enter and deal with it from the well. During the above processing, in order to ensure safety, it is necessary to arrange certain safety measures to isolate the maintenance equipment from the operating equipment. Usually, the safety facilities include safety belts.

The use of the safety girdle fixed inserting rod in the prior art is not economical and reasonable, and the work efficiency is not high. This is mainly manifested in the fact that most of the currently used safety belt fixed inserting rods are about 1m in length. In actual work, the inserted rod is long and inconvenient to use, and the currently used inserting rod fixed lock is made of hard plastic material. , more than 70% of the lock is damaged, and it cannot be used in severe cases.

Contents of the invention

In order to solve the above problems, the present invention proposes a retractable and portable fixed insertion rod, which makes the locking of the insertion rod change from two-handed operation to one-handed operation, avoiding the inflexible and easily damaged problems of the current insertion rod, and improving service life. Concrete technical scheme of the present invention is as follows:

A retractable portable fixed insertion rod, including a main rod, the main rod is a hollow cylinder, and a window communicating with the inner cavity of the main rod is provided on the cylindrical surface; a locking body is arranged inside the main rod, The lock body is provided with a groove, and the position of the groove corresponds to the window; inside the main rod, a thimble is arranged on the upper part of the lock body, and the thimble is connected to the lock by a spring body; a U-shaped steel wire is arranged in the locking body, at least a part of one side of the U-shaped steel wire passes through the groove, and at least a part of the other side of the U-shaped steel wire is inserted into the thimble.

The further improvement of the present invention is: it also includes a tail rod, one end of the tail rod is placed inside the main rod, below the locking body and can slide along the main rod, and the inside of the main rod or the tail rod is sleeved on the main rod. One end of the rod is provided with a locking device.

The further improvement of the present invention is that: two protrusions are arranged on the outer wall of the upper end of the tail rod, and the inside of the corresponding main rod is provided with a chute matching the protrusions, and the two sides of the chute are arranged radially and at intervals with the protrusions. Positioning slot corresponding to the size.

A further improvement of the present invention is that: an axial guide groove is provided on the side wall of the main rod, and a lock nut is arranged on the upper end of the tail rod, and the position of the lock nut corresponds to the axial guide groove of the main rod.

A further improvement of the present invention is that: the groove has a plane facing the direction of the window, and the part of the U-shaped steel wire passing through the groove is parallel to the plane.

The method for using the retractable portable fixed inserting rod comprises the following steps:

Release the locking device and pull the tail rod out of the main rod;

Tighten the locking device to lock the tail rod;

Press the thimble and insert the girdle between the U-shaped steel wire and the groove of the lock body;

Loosen the thimble, adjust the U-shaped steel wire to limit the girdle between the U-shaped steel wire and the groove of the lock body;

When the work is over, press the thimble again to take out the girdle from between the U-shaped steel wire and the groove of the lock body;

Loosen the locking device and insert the tail rod into the main rod;

Tighten the locking device to lock the tail rod.

The beneficial effects of the present invention are:

The invention adopts the telescopic design of the insertion rod, which shortens the length of the existing insertion rod from more than 1m to about 0.5m. When in use, it can be stretched to 1m by simply pulling it, and it can be shortened to 0.5m by easily closing it after use, which is convenient. The transportation of the operating personnel to the outdoor site reduces the heavy workload of the operating personnel in arranging safety measures. At the same time, the locking buckle adopts the self-locking design of pressing the spring with one hand, and the locking and unlocking functions of the girdle can be realized with one easy press. Not only has the current operation of the insertion rod with both hands changed to one-handed operation, but at the same time the work intensity has been reduced, and the current problem of inflexible locking and easy damage of the insertion rod has been avoided. Improve service life. The invention is convenient for repeated use, facilitates standardized management, and can be widely used in substations within the company.

Description of drawings

Accompanying drawing 1 is the front view of a preferred embodiment of the retractable portable fixed insertion rod of the present invention;

Accompanying drawing 2 is a side view (extended state) of the retractable portable fixed insertion rod described in accompanying drawing 1;

Accompanying drawing 3 is a partial sectional view of accompanying drawing 2;

Accompanying drawing 4 is a side view (contracted state) of the telescopic portable fixed insertion rod described in accompanying drawing 1.

Among them, 1. main rod, 2. tail rod, 3. window, 4. U-shaped steel wire, 5. thimble, 6. spring, 7. lock body.

detailed description

Referring to accompanying drawings 1-4, it describes a preferred embodiment of the telescopic portable fixed insertion rod according to the present invention. The retractable and portable fixing rod includes a main rod 1, a tail rod 2, a locking body 7 and a thimble 5. The main rod 1 is a hollow cylindrical tube. The outer diameter of the tail rod 2 is slightly smaller than the inner diameter of the main rod 1. The tail rod 2 is sleeved inside one end of the main rod 1 (hereinafter referred to as the lower end). The sliding of the rod 1 is controlled by a locking device (not shown) on its sliding. When the locking device is adjusted to the "open" position, the tail rod 2 can slide along the inner wall of the main rod 1. When the locking device is adjusted to the "open" position, the tail rod 2 can slide along the inner wall of the main rod 1. When the position is closed, the tail rod 2 cannot move, and its relative position with the main rod 1 is fixed. No matter the tail rod 2 moves to any position in the main rod 1, it can be fixed at this position by the locking device, so as to realize the telescopic control of the tail rod 2 relative to the main rod 1 . Wherein, the effective use lengths of the main rod 1 and the tail rod 2 are both 0.5 m. Enumerate the structure and locking method of two kinds of locking devices in the present embodiment: For example, two protrusions are set on the outer wall of the upper end of the tail rod 2, and the inside of the corresponding main rod 1 is provided with a chute matching the protrusions, and the chute of the chute Radial positioning grooves corresponding to the size of the bumps are arranged at intervals on both sides, and the bumps of the tail rod slide axially in the slide grooves. When positioning at a certain position, turn the tail radially to the left or right. rod, so that the protrusion in the tail rod is limited to the positioning groove, so that the displacement of the main rod and the tail rod is relatively constant. For another example, the tail rod sleeve slides in the main rod, the side wall of the main rod is provided with an axial guide groove, and a lock nut is arranged on the upper end of the tail rod, and the position of the lock nut corresponds to the axial guide groove of the main rod , loosen the lock nut, the tail rod slides axially along the main rod, tighten the lock nut, the position of the tail rod and the main rod is relatively fixed. See Figure 1 for the positional relationship of the various components when the retractable portable fixed insertion rod is in an extended state, and see Figure 4 for the positional relationship of each component when the retractable portable fixed insertion rod is in a contracted state.

One end of the main rod 1 that is not provided with the tail rod 2, hereinafter referred to as the upper end, is provided with a window 3 on the cylindrical tube surface of the main rod 1 near the upper end, and the window 3 communicates with the inner cavity of the cylindrical tube and the outside of the cylindrical tube. 1. A locking body 7 is provided near the window 3 in the inner cavity. The locking body 7 has a groove. The position of the locking body 7 in the main rod 1 is such that the groove corresponds to the window 3. The upper end of the main rod 1 is also provided with a thimble 5, the thimble 5 is a small cylindrical plug, which fits with the inner wall of the main rod 1 in a gap, the lower end of the thimble 5 is connected to one end of the spring 6, and the other end of the spring 6 is connected to the lock body 7 . The locking body 7 and the thimble 5 are preferably made of plastic or resin material.

A U-shaped steel wire 4 is arranged inside the locking body 7, and the opening direction of the U-shaped steel wire 4 faces the direction of the upper end of the main rod 1, and one side of the U-shaped steel wire 4 passes through the center of the locking body 7 and is inserted into the thimble 5 The other side of the U-shaped steel wire 4 passes through the groove part of the lock body 7, so that at least a part thereof is exposed through the window 3, and the upper side of the groove part is provided with a fixing hole corresponding to the U-shaped steel wire 4. For the convenience of fixing the shroud, the groove can have a plane facing the direction of the window 3, and the part of the U-shaped steel wire 4 passing through the groove is parallel to the plane, so as to clamp and fix the shroud.

The use method of the retractable portable fixed inserting rod comprises the following steps:

1. Loosen the locking device and pull the tail rod 2 out of the main rod 1;

2. Tighten the locking device to lock the tail rod 2, so that the main rod 1 and the tail rod 2 can maintain the relative position between the two;

3. Press the thimble 5, and the thimble 5 pushes the U-shaped steel wire 4 to move down. There is a gap between the U-shaped steel wire 4 on the side of the groove of the lock body 7 and the upper side of the groove, and the shroud is inserted into the U-shaped steel wire through the above gap. Between the steel wire 4 and the groove bottom of the locking body 7;

4. Loosen the thimble 5, the thimble 5 moves up under the action of the spring 6, adjust the U-shaped steel wire 4 to insert it into the fixing hole in the groove of the lock body 7, and close the gap between the U-shaped steel wire 4 and the lock body 7 At this time, the shroud is defined between the U-shaped steel wire 4 and the bottom of the groove of the lock body 7, flatly attached to the groove bottom plane of the groove, and cannot be disengaged, thereby realizing the closure of the shroud. lock;

5. When the work is finished, press the thimble 5 again, and the thimble 5 pushes the U-shaped steel wire 4 to move down, and a gap is formed between the U-shaped steel wire 4 and the upper side of the groove part of the lock body 7, and the shroud passes through the gap Take it out from between the U-shaped steel wire 4 and the lock body 7;

6. Loosen the locking device and insert the tail rod 2 into the main rod 1;

7. Tighten the locking device to lock the tail rod 2, so that the main rod 1 and the tail rod 2 can maintain the relative position between the two.

The above is only a preferred embodiment of the patent of the present invention, but the scope of protection of the patent of the present invention is not limited thereto. Anyone familiar with the technical field can easily think of All changes or replacements should be covered within the protection scope of the patent for the present invention.

Claims (4)

1. retractable portable fixes an inserted link, comprises mobile jib (1), it is characterized in that:

Described mobile jib (1) is hollow cylindrical, its face of cylinder is provided with the window (3) being communicated with described mobile jib (1) internal cavities;

Be provided with locked body (7) in described mobile jib (1), (7) are provided with groove to described locked body, and the position of described groove is corresponding with described window (3);

Described mobile jib (1) is interior, the top of described locked body (7) arranges thimble (5), and described thimble (5) connects described locked body (7) by spring (6);

Be provided with U-shaped steel wire (4) in described locked body (7), the side of described U-shaped steel wire (4) at least partially through described groove, in the described thimble of insertion at least partially (5) of the opposite side of described U-shaped steel wire (4);

Also comprise foot piece (2), the lateral wall of described foot piece (2) upper end is arranged two projections, the inside of corresponding mobile jib (1) arranges the chute of coupling projection, and the interval, both sides of chute arranges the radial locating slot corresponding with the size of projection;

The sidewall of described mobile jib (1) offers the gathering sill of one axis, and the upper end of foot piece (2) arranges a locking nut, and the position of locking nut is corresponding with the axially directed groove of mobile jib (1).

2. retractable portable as claimed in claim 1 fixes inserted link, it is characterized in that: one end of described foot piece (2) is placed in described mobile jib (1), the below of locked body (7) can sliding along mobile jib (1), one end that the interior or foot piece of described mobile jib (1) is nested with mobile jib is provided with locking device.

3. the retractable portable as described in any one of claim 1 ~ 2 fixes inserted link, it is characterized in that: described groove has a plane towards window (3) direction, and described U-shaped steel wire (4) is through the part of described groove and described plane parallel.

4. retractable portable fixes a using method for inserted link as claimed in claim 3, it is characterized in that comprising the following steps:

Loosen locking device, foot piece (2) is pulled out from mobile jib (1);

Screw locking device, locking foot piece (2);

Press thimble (5), between groove shroud being inserted U-shaped steel wire (4) and locked body (7);

Unclamp thimble (5), regulate U-shaped steel wire (4) to be limited to by shroud between the groove of U-shaped steel wire (4) and locked body (7);

When after end-of-job, again press thimble (5), shroud is taken out between U-shaped steel wire (4) and the groove of locked body (7);

Loosen locking device, foot piece (2) is inserted in mobile jib (1);

Screw locking device, locking foot piece (2).