Shield body tight-supporting device for double-mode shield tunneling machine

Abstract

The utility model relates to the technical field of shield tunneling machines, and discloses a shield body bracing device for a dual-mode shield tunneling machine, which comprises a closing plate, a base is arranged on the back of the closing plate, a first bolt is mounted in the closing plate in a threaded manner, a protective cover is fixedly mounted on the front side of the closing plate, an oil cylinder is fixedly mounted in the closing plate, and a first bolt is mounted in the oil cylinder. The oil cylinder and the base are fixedly installed, a piston rod is arranged in the oil cylinder, a positioning mechanism is arranged outside the piston rod, and a tight supporting mechanism is arranged in the positioning mechanism. Through the arrangement of a shock absorber, when the supporting shoe makes contact with the hole wall, impact force is relieved, so that the service life of the supporting shoe is prolonged, through the arrangement of a spray head and a connecting water pipe, clear water spraying work is facilitated, under the cooperation of a water leakage hole, cleaning of a second connecting plate and the supporting shoe is facilitated, water is sputtered after making contact with the second connecting plate, and the service life of the supporting shoe is prolonged. And meanwhile, the fender is cleaned, and the cleanliness of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machines, in particular to a shield body tightening device for a dual-mode shield machine. Background Technique

[0002] The shield body tightening device of a shield machine is a device used to maintain the stability and safety of the shield body during the shield operation. It can adjust and control the tightening force of the shield body according to the working state of the shield machine and geological conditions to ensure that the shield body will not tilt or shift during tunneling, thus guaranteeing the construction quality and safety of the tunnel.

[0003] As described in a shield machine and a shield body tightening device for a shield machine (authorization publication number: CN214091871 U) disclosed on the patent network, "The present invention relates to the field of underground tunnel construction equipment, and discloses a shield machine and a shield body tightening device for a shield machine. The key points of its technical solution are that it includes a tightening mechanism embedded on the side of the shield body. The tightening mechanism includes a support shoe, a clamping plate, an oil cylinder, and a butting plate. The support shoe includes a shoe top plate and side shoe plates fixedly connected to the inner edge of the shoe top plate. The shoe top plate is an arc-shaped plate. The top end of the piston rod on the front side of the oil cylinder is attached to the middle part of the inner side of the shoe top plate. A groove is recessed on the rod body of the piston rod. One end of the clamping plate is fixedly connected to the side shoe plate, and the other end of the clamping plate is clamped in the groove. The rear end of the oil cylinder is fixedly connected to the butting plate, and the butting plate is fixedly connected to the shield body, which can significantly increase the tightening force of the shield body, is beneficial to the progress of tunnel construction, has a simple structure, and strong practicability."

[0004] Regarding the above description content, the applicant believes that the following problems exist:

[0005] During the use of this utility model, since the oil supply system of the shield machine supplies oil, the piston rod of the oil cylinder is pushed out through the oil inlet pipeline, driving the support shoe to extend out of the shield body and tighten the excavation tunnel wall. The extension amount of the support shoe is controlled by the data fed back by the stroke sensor. However, during the actual use process, with the movement of the support shoe, muddy water will enter the shield body. Therefore, it is necessary to frequently open the sewage ball valve to discharge the muddy water. Although the muddy water can be discharged, the cleanliness of the shield body cannot be guaranteed. Moreover, when the support shoe contacts the tunnel wall, a large force will be generated. Since the impact force cannot be reduced, the support shoe is easily damaged, which has certain limitations. Therefore, it is necessary to improve a shield body tightening device for a dual-mode shield machine to solve the above problems. Content of the Utility Model

[0006] The purpose of the present utility model is to provide a shield body tightening device for a dual-mode shield machine to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A shield body tightening device for a dual-mode shield machine, including a clamping plate, a base is provided on the back of the clamping plate, a first bolt is threadedly installed inside the clamping plate, a protective cover is fixedly installed on the front of the clamping plate, an oil cylinder is fixedly installed inside the clamping plate, the oil cylinder is fixedly installed with the base, a piston rod is provided inside the oil cylinder, a positioning mechanism is provided outside the piston rod, and a tightening mechanism is provided inside the positioning mechanism.

[0008] Preferably, a threaded hole is provided at a position corresponding to the first bolt inside the base, and the first bolt is threadedly installed in the threaded hole, facilitating the limiting work of the clamping plate and the base.

[0009] Preferably, the positioning mechanism includes a positioning ring fixedly installed outside the piston rod, a limiting arc-shaped plate is movably installed outside the piston rod, a second bolt is threadedly installed inside the limiting arc-shaped plate, a first connecting plate is movably installed outside the piston rod, an extending arc-shaped plate is fixedly installed on the front of the first connecting plate, a first side shoe plate is fixedly installed on the outside of the first connecting plate, a second side shoe plate is fixedly installed on the inside of the first side shoe plate, a mud guard is fixedly installed on the front of the first side shoe plate, and the second side shoe plate is fixedly installed with the mud guard, facilitating the blocking work of muddy water.

[0010] Preferably, a threaded hole is provided at a position corresponding to the second bolt inside the extending arc-shaped plate, and the second bolt is threadedly installed in the threaded hole, facilitating the limiting work of the extending arc-shaped plate.

[0011] Preferably, a through hole is provided at a position corresponding to the piston rod inside the mud guard, and the piston rod is slidably installed in the through hole, facilitating the movement of the piston rod and facilitating the contact between the support shoe and the tunnel wall.

[0012] Preferably, the tightening mechanism includes a second connecting plate fixedly installed on the back of the piston rod, a shock absorber is provided inside the second connecting plate, a support shoe is fixedly installed on the back of the shock absorber, a water leakage hole is provided inside the second connecting plate, a spray head is fixedly installed inside the mud guard, and a connecting water pipe is fixedly installed on the front of the spray head, facilitating the tightening work and the cleaning work.

[0013] Compared with the prior art, the present utility model provides a shield body tightening device for a dual-mode shield machine, having the following beneficial effects:

[0014] 1. The shield body tightening device for the dual-mode shield machine, through the provided positioning mechanism, during use, with the provided positioning ring, limiting arc plate, first connecting plate and extending arc plate, facilitates the rapid positioning of the first side shoe plate and the second side shoe plate. Through the provided second bolt, it facilitates the limiting work of the limiting arc plate and the extending arc plate. Through the provided mud guard, it facilitates the blocking of muddy water.

[0015] 2. The shield body tightening device for the dual-mode shield machine, through the provided tightening mechanism, during use, with the provided shock absorber, when the support shoe contacts the tunnel wall, it reduces the impact force, thereby increasing the service life of the support shoe. Through the provided nozzle and connecting water pipe, it facilitates the spraying work of clean water. In cooperation with the water leakage hole, it facilitates the cleaning of the second connecting plate and the support shoe. After the water contacts the second connecting plate, it splashes, and at the same time cleans the mud guard, ensuring the cleanliness of the device and increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0017] Figure 1 It is a front structural schematic diagram of the present invention;

[0018] Figure 2 It is a side structural schematic diagram of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the positioning mechanism of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the tightening mechanism of the present invention.

[0021] In the figure: 1, clamping plate; 2, base; 3, first bolt; 4, protective cover; 5, oil cylinder; 6, piston rod; 7, positioning mechanism; 711, positioning ring; 712, limiting arc plate; 713, second bolt; 714, first connecting plate; 715, extending arc plate; 716, first side shoe plate; 717, second side shoe plate; 718, mud guard; 8, tightening mechanism; 811, second connecting plate; 812, shock absorber; 813, support shoe; 814, water leakage hole; 815, nozzle; 816, connecting water pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] Embodiment 1:

[0025] Please refer to Figures 1-3 , the present utility model provides a technical solution: a shield body tightening device for a dual-mode shield machine, including a clamping plate 1, a base 2 is arranged on the back of the clamping plate 1, a first bolt 3 is installed in the clamping plate 1 by threading, a protective cover 4 is fixedly installed on the front of the clamping plate 1, an oil cylinder 5 is fixedly installed inside the clamping plate 1, the oil cylinder 5 is fixedly installed with the base 2, a piston rod 6 is arranged inside the oil cylinder 5, a positioning mechanism 7 is arranged outside the piston rod 6, and a tightening mechanism 8 is arranged inside the positioning mechanism 7.

[0026] Furthermore, a threaded hole is opened at a position corresponding to the first bolt 3 inside the base 2, and the first bolt 3 is installed in the threaded hole by threading, which is convenient for the limiting work of the clamping plate 1 and the base 2.

[0027] Furthermore, the positioning mechanism 7 includes a positioning ring 711, the positioning ring 711 is fixedly installed outside the piston rod 6, a limiting arc plate 712 is movably installed outside the piston rod 6, a second bolt 713 is installed in the limiting arc plate 712 by threading, a first connecting plate 714 is movably installed outside the piston rod 6, an extending arc plate 715 is fixedly installed on the front of the first connecting plate 714, a first side shoe plate 716 is fixedly installed on the outside of the first connecting plate 714, a second side shoe plate 717 is fixedly installed on the inner side of the first side shoe plate 716, a mud guard 718 is fixedly installed on the front of the first side shoe plate 716, and the second side shoe plate 717 is fixedly installed with the mud guard 718, which is convenient for the blocking work of muddy water.

[0028] Further, a threaded hole is provided at a position corresponding to the second bolt 713 inside the extended arc plate 715, and the second bolt 713 is threadedly installed in the threaded hole, facilitating the limiting work of the extended arc plate 715.

[0029] Further, a through hole is provided at a position corresponding to the piston rod 6 inside the mudguard 718, and the piston rod 6 is slidably installed in the through hole, facilitating the movement of the piston rod 6 and facilitating the contact between the support shoe 813 and the tunnel wall.

[0030] Embodiment 2:

[0031] Please refer to Figure 4 and in combination with Embodiment 1, it is further obtained that the tightening mechanism 8 includes a second connecting plate 811. The second connecting plate 811 is fixedly installed on the back of the piston rod 6. A shock absorber 812 is arranged inside the second connecting plate 811. A support shoe 813 is fixedly installed on the back of the shock absorber 812. A water leakage hole 814 is provided inside the second connecting plate 811. A nozzle 815 is fixedly installed inside the mudguard 718. A connecting water pipe 816 is fixedly installed on the front of the nozzle 815, facilitating the tightening work and the cleaning work.

[0032] During the actual operation process, when this device is used, the base 2 is hermetically welded to the support plate inside the shield body according to the positioning dimensions. The support shoes are installed in the reserved cavity inside the shield body. Through the provided mudguard 718, it is convenient to block the muddy water subsequently. Through the provided limiting arc plate 712, second bolt 713, first connecting plate 714 and extended arc plate 715, it is convenient to position and install the first side shoe plate 716. When the device is working, with the cooperation of the oil cylinder 5, the piston rod 6 moves, so that the second connecting plate 811 moves, making the support shoe 813 contact the tunnel wall. With the cooperation of the shock absorber 812, the impact force is reduced. After the support shoe 813 moves away from the tunnel wall, with the cooperation of the nozzle 815 and the connecting water pipe 816, clear water is sprayed towards the second connecting plate 811. With the cooperation of the water leakage hole 814, the second connecting plate 811 and the support shoe 813 are cleaned. When the water contacts the second connecting plate 811, it splashes, and at the same time, the mudguard 718 is cleaned.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A shield body tightening device for a dual-mode shield machine, comprising a clamping plate (1), characterized in that: The back of the handle plate (1) is provided with a base (2), the internal thread of the handle plate (1) is provided with a first bolt (3), the front of the handle plate (1) is fixedly provided with a protective cover (4), the interior of the handle plate (1) is fixedly provided with an oil cylinder (5), the oil cylinder (5) is fixedly provided with the base (2), the interior of the oil cylinder (5) is provided with a piston rod (6), the exterior of the piston rod (6) is provided with a positioning mechanism (7), and the interior of the positioning mechanism (7) is provided with a tightening mechanism (8).

2. The shield body tightening device for a dual-mode shield machine according to claim 1, characterized in that: A threaded hole is provided inside the base (2) at a position corresponding to the first bolt (3), and the first bolt (3) is threadedly installed in the threaded hole, so as to facilitate the position limiting work of the clamping plate (1) and the base (2).

3. The shield body tightening device for a dual-mode shield machine according to claim 1, characterized in that: The positioning mechanism (7) comprises a positioning ring (711), the positioning ring (711) being fixedly mounted on the outside of the piston rod (6), a limiting arc plate (712) being movably mounted on the outside of the piston rod (6), a second bolt (713) being mounted on the internal thread of the limiting arc plate (712), a first connecting plate (714) being movably mounted on the outside of the piston rod (6), an extending arc plate (715) being fixedly mounted on the front of the first connecting plate (714), a first side boot plate (716) being fixedly mounted on the outside of the first connecting plate (714), a second side boot plate (717) being fixedly mounted on the inside of the first side boot plate (716), a mudguard (718) being fixedly mounted on the front of the first side boot plate (716), and the second side boot plate (717) being fixedly mounted on the mudguard (718).

4. The shield body tightening device for a dual-mode shield machine according to claim 3, characterized in that: A threaded hole is provided inside the extended arc plate (715) at a position corresponding to the second bolt (713), and the second bolt (713) is threadedly installed in the threaded hole.

5. The shield body tightening device for a dual-mode shield machine according to claim 3, characterized in that: A through hole is provided inside the fender (718) at a position corresponding to the piston rod (6), and the piston rod (6) is slidably mounted in the through hole.

6. The shield body tightening device for a dual-mode shield machine according to claim 3, characterized in that: The tightening mechanism (8) comprises a second connecting plate (811), the second connecting plate (811) being fixedly mounted on the back of the piston rod (6), a shock absorber (812) being arranged inside the second connecting plate (811), a tightening shoe (813) being fixedly mounted on the back of the shock absorber (812), a water leakage hole (814) being provided inside the second connecting plate (811), a nozzle (815) being fixedly mounted inside the fender (718), and a connecting water pipe (816) being fixedly mounted on the front of the nozzle (815).

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