TWI555696B - Jack loose structure manually - Google Patents

Description

Jack manual release structure

The invention relates to a jack release structure, and more particularly to a jack manual release structure, which is used for a jack, and a cable supported by a lifting anchor head for loosening the jack.

It is known that the jack used for lifting the beam is loosened by the computer controlled or hydraulic control method to loosen the wire rope of the lifting head of the jack, so that the wire rope gradually moves the beam.

However, computer equipment or hydraulic equipment for jacks are generally more expensive and complicated, posing a burden to the user.

In addition, the processing of computer equipment or hydraulic equipment for jacks is cumbersome.

Therefore, how to invent a jack loose structure, which is low in cost, simple in structure and easy to operate, will be actively disclosed in the present invention.

The object of the present invention is to provide a manual release structure for a jack, which is low in cost, simple in structure and easy to operate.

For the above purpose and other purposes, a jack manual release structure for lifting a jack of a beam, the jack having a lifting anchor head, the lifting anchor head being limited by at least one elastic member, the jack being manually loosened The detaching structure comprises: a loose base disposed on the side wall of the jack; at least two screw holes symmetrically passing through the side wall of the loose base; at least two rotating members respectively having threaded teeth corresponding to the screw holes And rotating respectively disposed on each of the screw holes; at least two abutting members are respectively disposed at one end of each of the rotating members and inserted into a bottom of the lifting anchor head of the jack; and at least two control members are respectively connected to the respective The other end of the rotating member controls the rotation of each of the rotating members; wherein, when the rotating members rotate, the abutting members abut the lifting anchor of the jack to resist the elastic force generated by the elastic member.

In the manual release structure of the jack of the present invention, each of the abutting members has a beveled structure corresponding to the bottom of the anchor head.

In the jack manual release structure of the present invention, each of the bevel structures is inclined by 45° with respect to each of the rotating members.

In the manual release structure of the jack of the present invention, the distance between the threads of each of the rotating members is 50 mm to 70 mm.

In the manual release structure of the jack of the present invention, the distance between the threads of each of the rotating members is 60 mm.

In summary, the manual release structure of the jack of the present invention can achieve the advantages of low manufacturing cost, simple structure and easy operation by the above arrangement.

In order to fully understand the objects, features and advantages of the present invention, the present invention will be described in detail by the following specific embodiments and the accompanying drawings.

Please refer to FIG. 1 , which is a schematic view of a jack 1000 having the jack manual release structure 100 of the present invention. The jack 1000 is lifted by a cross beam (not shown) by at least one cable 1 , and the jack 1000 has a The anchor head 1100 is hoisted, and the hoisting anchor head 1100 is restrained by at least one elastic member 1200. The jack manual release structure 100 includes a release base 10, at least two screw holes 20, at least two rotating members 30, at least two abutting members 40, and at least two control members 50.

The loose base 10 is disposed on the side wall of the jack 100; the screw holes 20 are symmetrically disposed on the side wall of the release base 10, and the screw holes 20 are preferably centered on the release base 10. The symmetry is provided. The rotating members 30 respectively have screw teeth 31 corresponding to the screw holes 20, and are respectively rotatably disposed in the screw holes 20; the abutting members 40 are respectively disposed on the rotating members 30. One end is inserted into the bottom 1110 of the lifting anchor head 1100 of the jack 1000; the control members 50 are respectively connected to the other ends of the rotating members 30 to control the rotation of the rotating members 30, and each of the control members 50 is preferably A rotating handle.

Next, as shown in FIG. 2 and FIG. 3, in the case where the jack 1000 carries a beam by the cable 1, the elastic member 1200 provides an elastic force F1 to limit the lifting anchor 1100 to fix the cable 1. If the jack 1000 is used to lift a beam by the cable 1, the rotating member 30 is rotated by rotating the control members 50; when each of the rotating members 30 rotates relative to each of the screw holes 20, The abutting member 40 is gradually inserted into the bottom portion 1110 of the lifting anchor head 1100, thereby supporting the lifting anchor head 1100, and generating an abutting force F2 to resist the elastic force F1; thereby, the lifting anchor head 1100 is no longer limited. The cable 1 is positioned such that the cable 1 can be moved.

As shown in FIG. 1 , the golden top 1000 has two jack manual release structures 100. In actual operation, as long as the jack manual release structure 100 located at the top of FIG. 1 and below FIG. 1 is alternately operated, two of the cable 1 are allowed. The parts are loosely rotated, and the cable 1 is gradually raised to lift a beam.

In summary, the manual release structure of the jack of the present invention has a simple structure by the above arrangement, so that the manufacturing cost can be reduced and the operation is easy.

In addition, each of the abutment members 40 preferably has a beveled structure 41 corresponding to the bottom portion 1110 of the anchor head 1100, and more specifically, the edge of the bottom portion 1110 of the anchor head 1100. Thereby, when each of the abutting members 40 is gradually inserted into the bottom portion 1110 of the hoisting anchor head 1100, the hoisting anchor head 1100 can be easily erected. Moreover, each of the inclined structures 41 is inclined by 45° with respect to each of the rotating members 30, whereby each of the inclined structures 41 can be easily inserted into the bottom 1110 of the lifting anchor 1100 after the rotating members 30 are rotated. An edge to prop up the lifting anchor 1100.

Referring again to Figure 2, the distance p between the threads 31 of each of the rotating members 30 is preferably from 50 mm to 70 mm, more preferably 60 mm. Therefore, when the user rotates the control members 50, the cooperation of the screw holes 20 and the screws 31 facilitates the rotation of the rotating members 30 toward the center of the jack 1000, so that the slope structures 41 are respectively 41. It can be easily inserted into the edge of the bottom 1110 of the hoisting anchor head 1100 to prop up the hoisting anchor head 1100.

In summary, the jacking structure of the jack of the present invention can be used to lift the beam without the need to loosen the cable by computer equipment or hydraulic equipment, thereby saving production cost and operating. It is only necessary to rotate the control members, so it is easy to operate.

The invention has been described above in terms of the preferred embodiments, and it should be understood by those skilled in the art that the present invention is not intended to limit the scope of the invention. It should be noted that variations and permutations equivalent to those of the embodiments are intended to be included within the scope of the present invention. Therefore, the scope of protection of the present invention is defined by the scope of the patent application.

1‧‧‧Steel cable
10‧‧‧Loose pedestal
20‧‧‧ screw holes
30‧‧‧Rotating parts
31‧‧‧ thread
40‧‧‧After the top piece
41‧‧‧Bevel structure
50‧‧‧Controls
100‧‧‧ jack manual release structure
1000‧‧‧ jack
1100‧‧‧ lifting anchor head
1110‧‧‧ bottom
1200‧‧‧Flexible components
F1‧‧‧ elastic
F2‧‧‧Resistance
P‧‧‧ spacing

[Fig. 1] is a schematic view of a jack having the manual release structure of the jack of the present invention. [Fig. 2] is a schematic view showing the manual release structure of the jack and a lifting anchor head of the present invention. [Fig. 3] is a motion diagram of the manual release structure of the jack of the present invention and the hoisting anchor head.

1‧‧‧Steel cable

10‧‧‧Loose pedestal

20‧‧‧ screw holes

30‧‧‧Rotating parts

31‧‧‧ thread

40‧‧‧After the top piece

41‧‧‧Bevel structure

50‧‧‧Controls

100‧‧‧ jack manual release structure

1000‧‧‧ jack

1100‧‧‧ lifting anchor head

1110‧‧‧ bottom

1200‧‧‧Flexible components

Claims (5)

A jack manual release structure for lifting a jack of a beam, the jack having a lifting anchor head, the lifting anchor head being limited by at least one elastic component, the jack manual release structure comprising: a loose base a seat, disposed on the side wall of the jack; at least two screw holes symmetrically passing through the side wall of the loose base; at least two rotating members respectively having screw teeth corresponding to the screw holes, and respectively rotating and threading The screw holes; at least two abutting members are respectively disposed at one ends of the rotating members and inserted into the bottom of the lifting anchor head of the jack; and at least two control members respectively connected to the other ends of the rotating members, and are controlled Each of the rotating members rotates; wherein, when the rotating members rotate, the abutting members abut the lifting anchor head of the jack to resist the elastic force generated by the elastic member. The jack manual release structure according to claim 1, wherein each of the abutting members has a sloped structure corresponding to the bottom of the anchor head. The jack manual release structure according to claim 2, wherein each of the slope structures is inclined by 45° with respect to each of the rotating members. The jack manual release structure according to any one of claims 1 to 3, wherein a distance between the threads of each of the rotating members is 50 mm to 70 mm. The jack manual release structure according to claim 4, wherein the distance between the threads of each of the rotating members is 60 mm.