Die corner locking bolt device with novel structure

Abstract

The utility model discloses a die corner locking bolt device with a novel structure. The die corner locking bolt device comprises a mounting plate, a female cone, a fastening bolt, a spring and a hexagonal bolt head, the fastening bolt is connected with the mounting plate through a spring, can rotate around the female cone and is kept horizontal under the action of spring force; the hexagonal bolt head is movably connected with the fastening bolt through the spring pin. According to the utility model, not only can the closing function of the side plate at the end of the mold be realized, but also the fastening bolt can be kept horizontal and the robot can be aligned with the fastening bolt when the robot fastens the corner bolt.

Description

Technical Field

[0001] This utility model relates to the field of tunnel concrete segment prefabrication technology, and in particular to a new type of mold corner locking bolt device. Background Technology

[0002] Tunnel boring machine (TBM) segments are the main assembly components in TBM construction, forming the innermost barrier of the tunnel and bearing the responsibility of resisting soil pressure, groundwater pressure, and other special loads. TBM segment production typically uses high-strength, impermeable concrete to ensure reliable load-bearing capacity and waterproofing. Production mainly utilizes prefabricated segment molds, which are formed after the concrete is poured into a sealed container. The segment molds are made of mold steel and consist of a bottom mold, two side plates, two end plates, and two cover plates—specialized precast concrete molds used for tunnel segment production. Before and after segment pouring and solidification, manual or robotic tightening and loosening of the corner bolts of the mold are required to allow the side and end plates to open and close.

[0003] Currently available corner locking bolt devices for molds are designed for manual tightening or loosening. When loosened, the bolt does not remain horizontal. However, when a robot tightens or loosens the bolt, it is required that the bolt remain horizontal after loosening so that the robot can align the bolt head, insert the bolt head, and tighten it. Therefore, in order to solve the problem of robot tightening of corner bolts, a new type of corner locking bolt device for molds is proposed. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this application proposes a new type of mold corner locking bolt device to solve the problems existing in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A novel corner locking bolt device for a mold includes a mounting plate, a female cone, a fastening bolt, a spring, and a hexagonal bolt head. The fastening bolt is connected to the mounting plate via the spring and can rotate around the female cone while remaining horizontal under the force of the spring. The hexagonal bolt head is movably connected to the fastening bolt via a spring pin.

[0007] As a further technical solution of this utility model: the female cone is fixed to the mounting plate by bolts, and the interior is provided with a guide cone surface that cooperates with the fastening bolts.

[0008] As a further technical solution of this utility model: the protective cover is a detachable structure that covers the connection between the mother cone and the hexagonal bolt head.

[0009] As a further technical solution of this utility model: the spring is sleeved on the outside of the fastening bolt, with one end abutting against the spring baffle and the other end abutting against the baffle.

[0010] As a further technical solution of this utility model: a retaining ring is welded on the fastening bolt.

[0011] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0012] This invention not only solves the problem of closing the mold end plate, but also solves the problems of keeping the bolts horizontal and aligning the robot with the bolts when tightening the corner bolts. Attached Figure Description

[0013] Figure 1 This is a diagram showing the corner locking bolt device of the new mold structure in an unsecured state.

[0014] Figure 2 This is a diagram showing the state of the corner locking bolt device of the new mold structure after it has been tightened.

[0015] In the diagram: 1. Mounting plate; 2. Female cone; 3. Fastening bolt; 4. Retaining ring; 5. Baffle; 6. Spring baffle; 7. Spring; 8. Hexagonal bolt head; 9. Spring pin; 10. Protective cover. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] like Figure 1 As shown, a novel corner locking bolt device for a mold includes a mounting plate 1, a female cone 2, a fastening bolt 3, a spring 7, and a hexagonal bolt head 8. The mounting plate 1 is connected to the mold side plate, the female cone 2 is bolted to the mounting plate, the fastening bolt 3 is connected to a tapered nut on the mold end plate, a retaining ring 4 is welded to the fastening bolt 3, a baffle 5 is connected to the mounting plate 1 and the fastening bolt 3, a spring baffle 5 is connected to the fastening bolt 3, the spring 7 is connected to the fastening bolt 3 and the baffle 5, the hexagonal bolt head 8 is connected to the fastening bolt 3 via a spring pin 9, and the protective cover 10 is connected to the female cone 2 and the baffle 5.

[0018] The female cone 2 is fixed to the mounting plate 1 by bolts, and has an internal guide cone surface that mates with the fastening bolt 3. The protective cover 10 is a detachable structure that covers the connection between the female cone 2 and the hexagonal bolt head 8. The spring 7 is sleeved on the outside of the fastening bolt 3, with one end abutting against the spring baffle 6 and the other end abutting against the baffle 5. A retaining ring 4 is welded onto the fastening bolt 3.

[0019] After the spring 7 is connected to the fastening bolt 3 and the retaining ring 6, the compression force of the spring can be used to make the bolt quickly rebound to the position of the baffle 5 when it is loosened. The robot continues to rotate the bolt so that the bolt is screwed into the thread on the baffle 5. In this way, the bolt can be kept horizontal so that the bolt head can be aligned when the robot tightens the bolt again.

[0020] This design is used to lock the mold side plate and end plate. This new structure can not only solve the problem of locking the mold side plate and end plate, but also solve the problem of keeping the bolt horizontal after it is loosened by the compression force of the spring when the robot is tightening or loosening the bolt. It can also solve the problem of the robot aligning the tightening bolt.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment have been appropriately combined to form other embodiments that are easy for those skilled in the art to understand.

Claims

1. A mold corner locking bolt device of a new structure, characterized by: It includes a mounting plate (1), a female cone (2), a fastening bolt (3), a spring (7), and a hexagonal bolt head (8); the fastening bolt (3) is connected to the mounting plate (1) through the spring (7), and can rotate around the female cone (2) and remain horizontal under the action of the spring force; the hexagonal bolt head (8) is movably connected to the fastening bolt (3) through a spring pin (9).

2. A mold corner locking bolt apparatus of new construction according to claim 1, wherein The mother cone (2) is fixed to the mounting plate (1) by bolts, and the interior is provided with a guide cone surface that cooperates with the fastening bolt (3).

3. A mold corner locking bolt apparatus of new construction according to claim 1, wherein The spring (7) is sleeved on the outside of the fastening bolt (3), with one end abutting against the spring baffle (6) and the other end abutting against the baffle (5).

4. A mold corner locking bolt apparatus of new construction according to claim 1, wherein A retaining ring (4) is welded onto the fastening bolt (3).

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