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Combination of ball bearing groove type base and two prying bars

A technology of bearing slots and bases, applied in crowbars, lifting devices, etc., can solve problems such as time-consuming and labor-intensive

Inactive Publication Date: 2018-10-19
朱明龙
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Because there is no crowbar that can carry loads and move horizontally, when laying cement prefabricated pipes of certain specifications for underground drainage pipes, six or seven skilled workers are required to rely on pulley blocks and crowbars to operate. If there is a deviation in the lateral orientation, it is necessary to loosen the pulley block and then use the crowbar to move the horizontal position of the pipe again to try again. Often a joint has to be repeated many times to succeed, which is very time-consuming and laborious.

Method used

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  • Combination of ball bearing groove type base and two prying bars
  • Combination of ball bearing groove type base and two prying bars

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Embodiment Construction

[0006] first in figure 2 Balls 8 are placed at the bottom hole 5 of the ball contracting frame shown, and then as shown in image 3 As shown, the contract frame with the ball is fixed on the screw holes 3 at both ends of the special-shaped groove body with screws through the through hole 7, and then as Image 6 As shown, first put a Figure 5 The shown yoke crowbar is framed on the image 3 The rear end "U" shaped notch 2B on the shown special-shaped groove body and ball assembly is in the groove body right side. When in use, the newly installed crowbar assembly is drilled through the lower side of the cement prefabricated pipe to be assembled with the "U"-shaped gap 2A end of its front end, so that the stepped body of the yoke-shaped crowbar that has been erected is on the uppermost edge 10 Probe directly below the relevant cement prefabricated pipe, and then place another yoke-shaped crowbar on the rear end "U"-shaped gap 2B of the special-shaped trough body from the oth...

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Abstract

The invention discloses a combination of a ball bearing groove type base and two prying bars. The combination is composed of the special-shaped groove type base with a steel ball type roller combination and the two yoke-shaped prying bars. The prying bar combination can easily lift a to-be-assembled cement precast pipe of which the diameter is smaller than or equal to 150 cm to the optimal assembling position through the two yoke-shaped prying bars, the constraint that the space of a construction face is narrow can be overcome, the process which originally needs to be completed through strength of six or seventh strong artificers can be completed through physical power of four persons, the labor intensity of related work can be greatly reduced, and the construction efficiency can be significantly improved.

Description

Technical field: [0001] The invention relates to a crowbar, in particular to a combination of a ball bearing groove type base and two crowbars. Background technique: [0002] Because there is no crowbar that can carry loads and move horizontally, when laying cement prefabricated pipes of certain specifications for underground drainage pipes, six or seven skilled workers are required to rely on pulley blocks and crowbars to operate. If the horizontal position deviates, it is necessary to loosen the pulley block and then use the crowbar to move the horizontal position of the pipes to try again. Usually, a group connection needs to be repeated many times before it can be successfully connected, which is very time-consuming and laborious. Invention content: [0003] In order to improve the construction efficiency of related projects, the present invention provides a ball-bearing trough-type base with two crowbar combinations, which is characterized in that the trough-type base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F15/00
CPCB66F15/00
Inventor 朱明龙
Owner 朱明龙
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