CN211137615U

CN211137615U - Concrete pipe pile mould compound die bolt

Info

Publication number: CN211137615U
Application number: CN201920821654.9U
Authority: CN
Inventors: 俞晓东
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-07-31
Anticipated expiration: 2029-05-31

Abstract

A concrete pipe pile mould closing bolt comprises a closing screw rod and a nut, wherein the closing screw rod is provided with a rod part and a connecting head part positioned at one end of the rod part, and the connecting head part is provided with a through hole for a bolt to penetrate through; the rod part is provided with a threaded rod section and a polished rod section, the threaded rod section is positioned between the connecting head and the polished rod section, the nut is in threaded connection with the threaded rod section, and a check ring for externally blocking the nut is fixed at the top of the polished rod section. The utility model discloses a main advantage lies in being equipped with retaining ring and spring on the compound die screw rod, and the retaining ring can carry on spacingly to the nut, prevents that the nut from being twisted out, sets up the spring and can stabilize the nut focus for the interlock aligns between nut and the compound die screw rod, reduces the dead screw thread that causes of nut and compound die screw rod card and damages the possibility, and the retaining ring uses the thread tightening, makes dismouting part process simple, and parts such as nut, spring can change alone.

Description

Concrete pipe pile mould compound die bolt

Technical Field

The utility model relates to a bolt, especially a bolt that is used for concrete tubular pile mould at compound die in-process.

Background

In the prior art, concrete products such as pipe piles, drainage pipes, floor slabs and the like are usually subjected to die assembly connection through middle bolts in the production process. The mold closing bolt is used as a key component of the mold, plays a considerable role in the quality of the concrete prefabricated part, and can cause damage such as slurry leakage when the mold closing bolt is not fastened or the mold lacks the mold closing bolt. Therefore, in the concrete prefabrication industry, further research is carried out on the die assembly bolts.

At present, great progress has been made in the research and development of the die bolt, and chinese patent CN205780183U discloses a tube pile die closing bolt, which includes a closing screw, a gasket and a closing bolt nut. Close mouthful bolt fastening on the tubular pile mould during use, prevent that the gasket from warping at nut fastening in-process, adopt plane flange nut, the flange face and the gasket contact of plane flange nut have increaseed the area of contact of nut and gasket, have solved because of the gasket warp with bolt, the dead problem of nut card, close the circular arc end and the screw rod section juncture of festival screw rod, have added the strengthening rib, increase the intensity of circular arc end. The combination prolongs the service life of the die and reduces the use cost of the die closing bolt.

However, the above-described clamp bolt has several problems as follows: firstly, the top of the die assembly screw rod does not limit the nut, so that the nut is easy to be unscrewed, the nut is repeatedly installed, the use is inconvenient, and the automatic die assembly is not facilitated; second, although adopt the plane flange nut, can increase the area of contact with the gasket, still can cause local atress inhomogeneous, lead to the nut easily to take place axial deviation, the interlock position can not align between nut and the screw rod, screws up the nut and makes, easily causes the screw thread to damage, reduces compound die bolt life, can not perfectly solve the gasket effectively with screw rod, the dead problem of nut card.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a concrete tubular pile mould compound die bolt rational in infrastructure, that the compound die is convenient is provided to above-mentioned prior art current situation.

In order to solve the technical problems, the technical scheme of the invention is as follows: a concrete pipe pile mould closing bolt comprises a closing screw rod and a nut, wherein the closing screw rod is provided with a rod part and a connecting head part positioned at one end of the rod part, and the connecting head part is provided with a through hole for a bolt to penetrate through; the method is characterized in that: the rod part is provided with a threaded rod section and a polished rod section, the threaded rod section is positioned between the connecting head and the polished rod section, the nut is in threaded connection with the threaded rod section, and a check ring for shifting the nut is fixed at the top of the polished rod section.

Preferably, the retainer ring is fixed to the top surface of the polished rod section by screws. The screw fixes the retainer ring, so that the process of disassembling and assembling parts is simple, and parts such as nuts and springs can be replaced independently.

In a further improvement, a rod part of the mold closing screw rod is sleeved with a spring, and the spring is supported between the retainer ring and the nut and enables the nut to keep moving trend along the axial direction of the rod part towards the direction of the connecting head part. By adopting the structure, the gravity center of the nut can be stabilized, the nut is occluded and aligned with the die assembly screw rod, and the possibility of thread damage caused by the clamping of the nut and the die assembly screw rod is reduced.

Preferably, the outer peripheral surface of the connecting head has an arc shape. The connecting head is convenient for the die-closing bolt to rotate by taking the connecting head as an axis during die closing.

Compared with the prior art, the utility model has the advantages of: the rod part is provided with a threaded rod section and a polished rod section, and a check ring for shifting the nut is fixed at the top of the polished rod section, so that the nut can be limited, and the nut is prevented from being screwed out.

Drawings

FIG. 1 is a front view of a first embodiment of the device of the present invention

FIG. 2 is a cross-sectional view of the first embodiment of the device of the present invention, taken along the line A-A of FIG. 1

FIG. 3 is a plan view of a first embodiment of the device of the present invention

FIG. 4 is a front view of a second embodiment of the device of the present invention

FIG. 5 is a cross-sectional view of a second embodiment of the device of the present invention, taken along the line A-A of FIG. 4

FIG. 6 is a plan view of a second embodiment of the device of the present invention

Fig. 7 is the schematic view of the device of the utility model installed on the concrete pipe pile mould.

The reference numbers are as follows: 1-check ring, 2-threaded rod section, 3-polished rod section, 4-rod section, 5-nut, 6-connecting head, 7-screw, 8-spring, connecting seat-concrete tubular pile die, 10-bolt, 11-upper half die and 12-lower half die.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 and 2, a concrete pipe pile mold clamping bolt is provided with a retainer ring 1, a screw 7, a polished rod section 3, a spring 8, a nut 5, a threaded rod section 2 and a connecting head 6 in sequence along the axial direction. The connecting head 6 is provided with a through hole for the bolt 10 to pass through.

In the embodiment, as shown in fig. 2 and 3, the top of the rod part 4 is provided with a retainer ring 1, and the retainer ring 1 and the screw 7 are respectively provided with matching threads and are fixed at the top end of the rod part 4 through the threads. The retainer ring 1, the screw 7 and the rod part 4 have no clearance basically, and the structure is compact and stable. Meanwhile, the structure is adopted, so that the process of assembling and disassembling parts is simple, and parts such as the nut 5, the spring 8 and the like can be independently replaced. The shaft 4 has a smooth shaft section 3 and a threaded shaft section 2. The rod part 4 is sleeved with a spring 8 and arranged between the nut 5 and the retainer ring 1, and the retainer ring 1 plays an axial limiting role for the spring 8, and the spring 8 and the retainer ring are in line contact.

In this embodiment, the spring 8 keeps the nut 5 moving in the axial direction of the rod 4 toward the connection head. By adopting the structure, the gravity center of the nut 5 can be stabilized and is occluded and aligned with the die assembly screw rod, and the possibility of thread damage caused by the clamping of the nut 5 and the die assembly screw rod is reduced. And the defects of complex installation, easy damage and loss and the like caused by small parts such as the nut 5 and the like are avoided. Meanwhile, the spring 8 always exerts an acting force on the nut 5, so that the nut 5 is firmly fixed and cannot be easily loosened, and the possibility of the problems of loose die assembly, untight die assembly and the like caused by the fact that the nut is loosened and falls off due to vibration or swing in the process of hoisting and conveying the die assembly bolt in the process of die assembly of the concrete pipe pile is reduced.

Fig. 4, 5 and 6 show a second embodiment of the present invention, and the most important difference from the embodiment is that no spring is arranged between the nut 5 and the retainer ring 1. The polished rod section 3 has a guiding effect on the nut 5. The other portions are the same as the previous embodiment.

As shown in fig. 7, the concrete tubular pile mould compound die bolt is connected in the faying face department that 11 and the second half touched 12 were touched on the first half when using, and the second half touched and is equipped with connecting seat 9 on 12, and pole portion 4 rotates through bolt 10 and sets up on the connecting seat to use the perforation to overturn as the axle, during embedding concrete tubular pile mould's the mounting groove, make the wholeness of mould and the convenience of installation promote greatly. The utility model discloses a be applicable to the concrete products mould of various moulds that need open and shut, be not limited to the tubular pile mould.

Claims

1. A concrete pipe pile mould closing bolt comprises a closing screw rod and a nut, wherein the closing screw rod is provided with a rod part (4) and a connecting head part (6) positioned at one end of the rod part, and the connecting head part is provided with a through hole for a bolt to penetrate through; the method is characterized in that: the rod part is provided with a threaded rod section (2) and a polished rod section (3), the threaded rod section (2) is located between the connecting head (6) and the polished rod section (3), the nut is in threaded connection with the threaded rod section (2), and a retainer ring (1) for conducting an external gear on the nut (5) is fixed to the top of the polished rod section (3).

2. The concrete tubular pile mold closing bolt according to claim 1, characterized in that the retainer ring (1) is fixed on the top of the polished rod section (3) through a thread (7).

3. The concrete pipe pile mold closing bolt according to claim 1 or 2, characterized in that a spring (8) is sleeved on the rod part (4) of the closing screw rod, and the spring (8) is supported between the retainer ring (1) and the nut (5) and keeps the nut (5) moving along the rod part axial direction towards the connecting head part.

4. The concrete pipe pile mold closing bolt according to claim 1, characterized in that: the outer peripheral surface of the connecting head (6) is arc-shaped.