Adjustable steel bar straight thread connection sleeve and steel bar straight thread connection method
A technology for connecting sleeves and straight threads, applied to structural elements, building components, building reinforcements, etc., can solve the problems of inconvenient operation, high price of joints, and inability to adjust, so as to facilitate the mastery of on-site workers and improve the connection efficiency effect
Active Publication Date: 2018-06-15
蒋文
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Problems solved by technology
[0002] At present, in many building components, such as prefabricated buildings and pile foundation cages, the two connected steel bars cannot be rotated and the axial distance cannot be adjusted. If ordinary sleeves are used for connection, the threads will not be collinear Problem, causing the sleeve and the steel bar to fail to connect 100% normally
The existing solution is to use cold extrusion sleeve connection or grouting sleeve technology for connection. The cold extrusion connection process is gradually eliminated by the market due to slow connection speed and inconvenient on-site operation; while the grouting sleeve connection form is It takes a long time to wait for the grout to solidify, and the price of the joint is very high, which is not conducive to the large-scale promotion and use of the market
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[0022] figure 1 Among them, the adjustable steel bar straight thread connection sleeve is composed of the first sleeve 1, the second sleeve 2 and the middle sleeve 3, and the outer surfaces of the first sleeve 1 and the second sleeve 2 are respectively provided with outer Connecting threads, internal connecting threads are provided on the inside of the middle sleeve 3, internal connecting threads are respectively provided on the inner sides of the first sleeve 1 and the second sleeve 2, the first sleeve 1 and the second sleeve 2 Connect with the middle sleeve 3 from both sides of the middle sleeve 3 through the external connection thread and the internal connection thread respectively; wherein, the pitch of the internal connection thread 4 of the connection end between the middle sleeve 3 and the first sleeve 1 is the same as that of the first sleeve 1. The pitch of the internal connecting thread 5 is different; the pitch of the internal connecting thread 6 of the connecting e...
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The invention provides an adjustable steel bar straight thread connecting sleeve which is used for reliable connection of steel bars under the condition that two threads are not collinear or have radial deviation and improves connecting efficiency due to the fact that the sleeve can be conveniently mastered by workers on site. According to the technical scheme, the adjustable steel bar straight thread connecting sleeve is composed of a first sleeve body (1), a second sleeve body (2) and a middle sleeve body (3), and the screw pitch of a connecting thread (4) in the end, connected with the first sleeve body (1), of the middle sleeve body (3) is different from the screw pitch of a connecting thread (5) in the first sleeve body (1); and the screw pitch of a connecting thread (6) in the end, connected with the second sleeve body (2), of the middle sleeve body (3) is identical with the screw pitch of the connecting thread (5) in the first sleeve body (1) and a connecting thread (7) in the second sleeve body (2). The invention further discloses a steel bar straight thread connecting method adopting the sleeve.
Description
technical field [0001] The invention belongs to the field of steel bar connection sleeve structure, especially an adjustable sleeve with simple structure, which realizes reliable connection between steel bars and steel bars when two threads are not collinear or has radial deviation, and is conducive to the mastery of on-site workers so as to improve the connection efficiency. A steel bar straight thread connection sleeve and a steel bar straight thread connection method. Background technique [0002] At present, in many building components, such as prefabricated buildings and pile foundation cages, the two connected steel bars cannot be rotated and the axial distance cannot be adjusted. If ordinary sleeves are used for connection, the threads will not be collinear The problem caused that the sleeve and the steel bar could not be connected 100% normally. The existing solution is to use cold extrusion sleeve connection or grouting sleeve technology for connection. The cold ex...
Claims
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IPC IPC(8): E04C5/16
CPCE04C5/165
Inventor 蒋文
Owner 蒋文