CN201768892U

CN201768892U - Tool for hoisting riser tube

Info

Publication number: CN201768892U
Application number: CN201020241430XU
Authority: CN
Inventors: 唐和雍
Original assignee: Chongqing Jianshe Motorcycle Co Ltd
Current assignee: Chongqing Jianshe Motorcycle Co Ltd
Priority date: 2010-06-29
Filing date: 2010-06-29
Publication date: 2011-03-23
Anticipated expiration: 2020-06-29

Abstract

The utility model relates to a tool for hoisting a riser tube, which comprises a circular shaft hoisting rod, the circular shaft hoisting rod is mainly composed of a cylindrical rod body and a rod head shaped like a round platform, a circular ring is movably sleeved on the rod body, at least three rotatable tension blocks are arranged equidistantly on the circular ring, an installation hole is formed at one end of each tension block, the circular ring penetrates the installation hole, the other end of the tension block is outwards bent to form an inclined working face, and the diameter of the upper bottom surface of the rod head shaped like a round platform is larger than the inner diameter of the circular ring. The utility model is simple in structure, convenient to operate, reduces labor intensity and improves operational safety.

Description

The instrument of lifting stalk

Technical field

The utility model relates to a kind of lifting device, relates in particular to a kind of instrument that lifts stalk.

Background technology

At present, low pressure casting factory all will use stalk, and stalk is cylindrical, inside and outside wall is smooth, temperature in the time will lifting, does not have fixing stress point up to 700 ℃, could install after often catching with rope, the difficulty especially that in using, breaks down in the time of will taking out, the temperature height, can only with iron rod strike way, bring difficulty to production, also bring potential potential safety hazard to operation.

The utility model content

Technical problem to be solved in the utility model provides a kind of instrument that lifts the stalk with smooth inner wall under the condition of high temperature, and this kind tool construction is simple, easy to operate, safe in utilization.

The technical solution of the utility model is as follows: a kind of instrument that lifts stalk, its key is, comprise a circular shaft suspension rod, this circular shaft suspension rod mainly is made of the bar head of columniform shaft and truncated cone-shaped, activity is with an annulus on the described shaft, equidistantly is installed with at least three rotating tension block on this annulus, and described tension block one end has installing hole, this installing hole is through on the described annulus, the working face of an inclination of the outwardly-bent outstanding formation of the other end; The upper bottom surface diameter of described truncated cone-shaped bar head is greater than described internal radius.

Further, fix an external thread sleeve on the described shaft, this external thread sleeve is provided with an inner screw sheath that matches with it, equidistantly is fixed with three support bars on the described annulus; When described inner screw sheath was rotated down, the inner screw sheath lower surface contacted with the upper surface of described three support bars.

Further, described annulus has a breach.

Further, described internal radius is that 32mm, gap width are 14mm, and the ring wall cross section of described annulus is that diameter is the circle of 10mm; The installing hole internal diameter of described tension block is 11mm.

Further, described tension block length is that 55mm, thickness are 20mm, and its jag bending radius is that 13mm, outstanding distance are 4mm.

Further, described shaft diameter is 20mm; Described bar head upper bottom surface diameter be 34mm, bottom surface diameter be 44mm, highly for 14mm.

Further, described external thread sleeve length is 50mm, and described inner screw sheath length is 80mm.

Further, described tension block has four.

The beneficial effects of the utility model are: equidistantly be installed with at least three rotating tension block on the annulus, tension block one end has installing hole and is through on the annulus, the working face of an inclination of the outwardly-bent outstanding formation of the other end; Annulus is actively set on the shaft, the upper bottom surface diameter of truncated cone-shaped bar head is greater than described internal radius, when the circular shaft suspension rod upwards lifts, thereby the bar head upwards supports tension block to the tension block application of force, this moment, the inclined cut of tension block closely contacted generation frictional force with the stalk inwall, reach the effect that promotes stalk, the utility model is simple in structure, easy to operate, alleviated staff labor intensity and improved processing safety.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is Fig. 1 vertical view;

Fig. 3 is a circular shaft hanging rod structure schematic diagram of the present utility model;

Fig. 4 is a tension block structural representation of the present utility model;

Fig. 5 is the vertical view of Fig. 4;

Fig. 6 is a circular ring structure schematic diagram of the present utility model;

Fig. 7 is the structural representation of another embodiment of the utility model;

Fig. 8 is the utility model user mode schematic diagram.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

Embodiment 1

As Fig. 1-shown in Figure 6, a kind of instrument that lifts stalk comprises a circular shaft suspension rod 1, annulus 2, tension block 3.Circular shaft suspension rod 1 mainly is made of the bar head 1b of columniform shaft 1a and truncated cone-shaped, shaft 1a goes up activity and is with an annulus 2, equidistantly be installed with three rotating tension block 3 on this annulus 2, tension block 3 can be around annulus 2 rotations, tension block 3 one ends have installing hole, this installing hole is through on the annulus 2, the working face of an inclination of the outwardly-bent outstanding formation of the other end of tension block 3; The upper bottom surface diameter of truncated cone-shaped bar head 1b is greater than annulus 2 internal diameters, make truncated cone-shaped bar head 1b can stop annulus 2 to fall down like this from shaft 1a, and truncated cone-shaped bar head 1b can outwards support three tension block 3 that are through on the annulus 2, at this moment, annulus 2 drops on the bar head 1b upper bottom surface of truncated cone-shaped, tension block 3 is outwards supported by the bar head 1b of truncated cone-shaped, and the working face outer rim of all tension block 3 is positioned on the same circumference.Annulus 2 has a breach.Annulus 2 internal diameters are that 32mm, gap width are 14mm, and the cross section of annulus 2 is that diameter is the circle of 10mm; The installing hole internal diameter of tension block 3 is 11mm.Tension block 3 is from the indentation, there on the annulus 2 to annulus on 2.Tension block 3 length are that 55mm, thickness are 20mm, and the bending radius of its crooked jag is that 13mm, outstanding distance are 4mm.Shaft 1a diameter is 20mm; Truncated cone-shaped bar head 1b upper bottom surface diameter is that 34mm, truncated cone-shaped bar head 1b bottom surface diameter are that 44mm, truncated cone-shaped bar head 1b highly are 14mm.Shaft 1a end at circular shaft suspension rod 1 is provided with a hanging hole, and axle suspension rod 1 connects with the lifting power set by this hanging hole.

Operation principle of the present utility model is such:

As shown in Figure 8, when needs lift, promote annulus 2 tension block 3 is received the inwall of putting stalk 7 after little into, this moment is lifting garden axle suspension rod 1 firmly, and tension block 3 leans against on the bar head 1b of truncated cone-shaped, tension block 3 is outwards opened, the working face of tension block 3 is supported on stalk 7 inwalls, carries circular shaft suspension rod 1 on exerting oneself, and the bar head 1b of truncated cone-shaped supports tension block 3 more, the frictional force that the working face of tension block 3 acts on above stalk 7 inwalls is big more, so just can sling stalk 7.

Embodiment 2

As Fig. 7, shown in Figure 8, for reliability and the security that increases lifting, fix an external thread sleeve 4 on the shaft 1a, this external thread sleeve 4 is provided with an inner screw sheath that matches with it 5, equidistantly is fixed with three support bars 6 on the annulus 2; When inner screw sheath 5 was rotated down, the lower surface of inner screw sheath 5 contacted with the upper surface of three support bars 6.External thread sleeve 4 length are 50mm, and inner screw sheath 5 length are 80mm.Tension block 3 has four.When circular shaft suspension rod 1 upwards promotes, after tension block 3 interfixes with stalk 7 inwalls, inner screw sheath 5 is rotated down, support bar 6 upper surfaces are subjected to the pressure of inner screw sheath 5, annulus 2 is further motion downwards, make on the one hand tension block 3 open more and stalk 7 inwalls between frictional force strengthen, be maintained the open configuration of tension block 3 on the other hand, prevent that tension block 3 from coming off from the inwall of stalk 7.Other technical characterictic is with embodiment 1.

Claims

1. instrument that lifts stalk, it is characterized in that: comprise a circular shaft suspension rod (1), this circular shaft suspension rod mainly is made of the bar head (1b) of columniform shaft (1a) and truncated cone-shaped, described shaft (1a) is gone up activity and is with an annulus (2), equidistantly be installed with at least three rotating tension block (3) on this annulus (2), described tension block (3) one ends have installing hole, and this installing hole is through on the described annulus (2), the working face of an inclination of the outwardly-bent outstanding formation of the other end; The upper bottom surface diameter of described truncated cone-shaped bar head (1b) is greater than described annulus (2) internal diameter.

2. according to the instrument of the described lifting stalk of claim 1, it is characterized in that: fix an external thread sleeve (4) on the described shaft (1a), this external thread sleeve (4) is provided with an inner screw sheath that matches with it (5), equidistantly is fixed with three support bars (6) on the described annulus (2); When described inner screw sheath (5) when being rotated down, the lower surface of inner screw sheath (5) contacts with the upper surface of described three support bars (6).

3. according to the instrument of the described lifting stalk of claim 2, it is characterized in that: described annulus (2) has a breach.

4. according to the instrument of the described lifting stalk of claim 3, it is characterized in that: described annulus (2) internal diameter is that 32mm, gap width are 14mm, and the cross section of described annulus (2) is that diameter is the circle of 10mm; The installing hole internal diameter of described tension block (3) is 11mm.

5. according to the instrument of the described lifting stalk of claim 4, it is characterized in that: described tension block (3) length is that 55mm, thickness are 20mm, and the bending radius of its crooked jag is that 13mm, outstanding distance are 4mm.

6. according to the instrument of the described lifting stalk of claim 5, it is characterized in that: described shaft (1a) diameter is 20mm; Described bar head (1b) upper bottom surface diameter be 34mm, bottom surface diameter be 44mm, highly for 14mm.

7. according to the instrument of the described lifting stalk of claim 6, it is characterized in that: described external thread sleeve (4) length is 50mm, and described inner screw sheath (5) length is 80mm.

8. according to the instrument of the described lifting stalk of claim 1, it is characterized in that: described tension block (3) has four.