阅读说明：本技术 一种盾构管片新型连接螺栓 (Novel connecting bolt for shield segment ) 是由 不公告发明人 于 2018-07-12 设计创作，主要内容包括：本发明公开了一种盾构管片新型连接螺栓,包括螺钉、螺杆、弹簧支架、拖片、套筒、螺帽、密封塞、卡槽、硅胶垫、珍珠棉、固定槽、螺杆、塑料软垫和密封垫。本发明的有益效果是：通过在螺杆的外部套设圆弧形的拖片,并在拖片和螺钉之间设置弹簧之间,从而在固定盾构管片的时候,可以利用拖片起到支撑依托盾构管片的作用,防止两个盾构管片之间发生偏移错位,有效的提高固定的质量,并利用弹簧支架在安装过程中可以起到减震的作用。通过在螺帽的上方和下方分别设置密封垫和密封塞,并在套筒的外部填充珍珠棉,从而可以利用密封垫和密封塞保护螺帽的顶部和底部均不被氧化,利用珍珠棉吸附套筒处的水分起到干燥防潮的效果。(The invention discloses a novel connecting bolt for shield segments, which comprises a screw, a screw rod, a spring support, a pulling piece, a sleeve, a screw cap, a sealing plug, a clamping groove, a silica gel pad, pearl wool, a fixing groove, a screw rod, a plastic cushion and a sealing pad. The invention has the beneficial effects that: the arc-shaped dragging pieces are sleeved outside the screw rod, and the springs are arranged between the dragging pieces and the screws, so that when the shield segment is fixed, the dragging pieces can be utilized to support the shield segment, offset and dislocation between the two shield segments are prevented, the fixing quality is effectively improved, and the spring support can play a role in shock absorption in the installation process. Through top and the below at the nut set up sealed pad and sealing plug respectively to it is cotton to fill pearl in telescopic outside, thereby can utilize sealed pad and sealing plug protection nut's top and bottom all not oxidized, utilizes the cotton moisture that adsorbs sleeve department of pearl to play dry damp-proof effect.)

1. The utility model provides a shield constructs novel connecting bolt of section of jurisdiction, includes screw (1), screw rod (2) and nut (6), its characterized in that: screw (1) top both sides all weld spring bracket (3), spring bracket (3) one end welding drags piece (4), drag piece (4) top welding sleeve (5), the below of nut (6) is equipped with sealing plug (7), nut (6) top is equipped with sealed pad (14), it all runs through and sets up draw-in groove (8) to drag piece (4) and sleeve (5) middle part, sleeve (5) lateral wall is equipped with silica gel pad (9), silica gel pad (9) outside is equipped with pearl cotton (10), sealing plug (4) top is equipped with a plurality of fixed slots (11), bottom of sleeve (7) is equipped with cover cap (12), cover cap (12) top is equipped with plastics cushion (13).

2. The novel connecting bolt of shield segment of claim 1, characterized in that: the screw rod (2) is welded at the bottom of the screw (1), and the screw rod (2) and the screw (1) are arranged vertically.

3. The novel connecting bolt of shield segment of claim 1, characterized in that: the nut (6) is sleeved outside the screw rod (2), and the nut (6) is rotatably connected with the screw rod (2).

4. The novel connecting bolt of shield segment of claim 1, characterized in that: the dragging piece (4) is of an arc-shaped structure, and the dragging piece (4) is matched with the outer wall of the shield segment.

5. The novel connecting bolt of shield segment of claim 1, characterized in that: and a thread groove is arranged in the middle of the sealing plug (7) in a penetrating manner, and the thread groove and the clamping groove (8) have the same size and specification.

6. The novel connecting bolt of shield segment of claim 1, characterized in that: the fixing groove (11) is of a rectangular structure, and the spring support (3) is welded inside the fixing groove (11).

Technical Field

The invention relates to a connecting bolt, in particular to a novel connecting bolt for shield segments, and belongs to the technical field of shield segment fixing application.

Background

The shield segment is a main assembly component for shield construction, is the innermost barrier of the tunnel and plays a role in resisting soil layer pressure, underground water pressure and some special loads. The shield constructs the section of jurisdiction and is the permanent lining structure in shield structure method tunnel, and the shield constructs the section of jurisdiction quality and directly concerns the whole quality and the safety in tunnel, influences the waterproof performance and the durability in tunnel, and the shield constructs the section of jurisdiction and need use the bolt of connecting usefulness when connecting, and this kind of bolt is bigger for ordinary bolt intensity, and the quality is better.

But current shield constructs section of jurisdiction connecting bolt still has certain defect when using, although current shield constructs section of jurisdiction connecting bolt can connect the shield and constructs the section of jurisdiction, but connect fixed in-process because the shield constructs the section of jurisdiction and be convex structure, current shield constructs section of jurisdiction connecting bolt can leave certain gap between shield section of jurisdiction and screw after fixed when connecting, this fastness of connection will be influenced, and because humidity is great in the tunnel now, current shield constructs section of jurisdiction connecting bolt easily to be corroded, influence connecting bolt's life.

Disclosure of Invention

The invention aims to provide a novel connecting bolt which is flexible and convenient and has longer service life in order to solve the problems that the existing connecting bolt for the shield segment is easy to corrode and is not firm in connection and fixation.

The spring support is welded on two sides of the top of the screw, a pulling sheet is welded at one end of the spring support, a sleeve is welded on the top of the pulling sheet, a sealing plug is arranged below the nut, a sealing gasket is arranged above the nut, clamping grooves are formed in the middle of the pulling sheet and the sleeve in a penetrating mode, a silica gel pad is arranged on the side wall of the sleeve, pearl wool is arranged outside the silica gel pad, a plurality of fixing grooves are formed in the top of the pulling sheet, a sleeve cap is arranged at the bottom of the sealing plug, and a plastic soft pad is arranged at the top of the sleeve cap.

Preferably, more reasonable firm for making the bolt can design guarantees that the bolt can be fixed stable with two shield segments connection, the screw rod welding is in the bottom of screw, just the screw rod is perpendicular setting with the screw.

Preferably, in order to enable the nut to be capable of adjusting the position on the screw rod in a rotating manner, the shield pipe fittings with different thicknesses are clamped and fixed, the nut sleeve is arranged outside the screw rod, and the nut is rotationally connected with the screw rod.

Preferably, in order to make the trailing piece perfectly fit the outer side wall of the shield segment, the function of supporting and supporting the shield segment is achieved, the two shield segments are prevented from offsetting and dislocating, the fixed quality is improved, the trailing piece is of a circular arc structure, and the trailing piece is matched with the outer wall of the shield segment.

Preferably, in order to make the sealing plug can the block fix on the screw rod, and rely on the sealing plug to come the bottom of shutoff nut, prevent that the nut bottom from by the oxidation, having prolonged the life of bolt, the sealing plug middle part is run through and is set up the thread groove, just the thread groove is the same with draw-in groove size and specification.

Preferably, in order to enable the bolt to play a role in damping by using the spring support after being fixed, the fixing groove is of a rectangular structure, and the spring support is welded inside the fixing groove.

Compared with the prior art, the invention has the beneficial effects that:

1. the arc-shaped dragging pieces are sleeved outside the screw rod, and the springs are arranged between the dragging pieces and the screws, so that when the shield segment is fixed, the dragging pieces can be utilized to support the shield segment, offset and dislocation between the two shield segments are prevented, the fixing quality is effectively improved, and the spring support can play a role in shock absorption in the installation process.

2. Through set up sealed pad and sealing plug respectively in the top and the below of nut to it is cotton to fill the pearl in telescopic outside, thereby can utilize sealed pad and sealing plug protection nut's top and bottom all not by the oxidation, utilizes the cotton moisture that adsorbs sleeve department of pearl to play the effect of drying dampproofing, inhaling the sound and making an uproar, the effectual life who improves connecting bolt.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the internal structure of the sleeve of the present invention.

Fig. 3 is a schematic view of the sealing plug of the present invention.

In the figure: 1. a screw; 2. a screw; 3. a spring support; 4. dragging the sheet; 5. a sleeve; 6. a nut; 7. a sealing plug; 8. a card slot; 9. a silica gel pad; 10. pearl wool; 11. fixing grooves; 12. a screw; 13. a plastic cushion; 14. and a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.