Shield / TBM hinge sealing performance detection device

Abstract

The utility model discloses a shield / TBM hinge sealing performance detection device, and solves the problems that a detection device in the prior art is complex in installation process and high in installation cost. The sealing device comprises a sealing strap and a sealing lock catch used for adjusting the fastening force of the sealing strap. The sealing lock catch is connected to the fixed end of the sealing strap, and the free end of the sealing strap is adjustably connected with the sealing lock catch. The sealing lock catch comprises a lock catch shell, a ratchet wheel and ratchet mechanism is arranged in the lock catch shell, a carry plate is arranged at the free end of the sealing strap, and the carry plate is inserted into the lock catch shell and matched with the ratchet wheel and ratchet mechanism. Compared with the prior art, by adopting the detection device, the accuracy of testing the sealing performance of the outermost layer can be effectively improved, and the problems of inconvenience in installation, high cost and the like caused by other schemes are solved. By using the detection device, the sealing test of the outermost layer of hinge sealing can be realized in a short time and at a low cost, the phenomenon of hinge sealing failure can be found in time, and the situation of shutdown caused by safety accidents is reduced, so that the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shield construction, especially a shield / TBM hinged sealing performance detection device. BACKGROUND

[0002] At present, in shield construction, especially in the construction scene of shield equipment adopting active hinged sealing, the sealing condition of the hinged area has a huge influence on the service life and reliability of the hinged device. Therefore, it is of great significance to detect and monitor the sealing condition of the hinged area.

[0003] In recent years, there are many ways to detect the hinged sealing of a shield machine, but the detection methods for the outermost sealing of multi-hinged sealing are mostly pressure sealing methods, such as the shield machine hinged sealing test device proposed in Chinese patent application No. 202010334306.6, but it only proposes a detection method, and the detection of medium and large shields still has problems such as difficult installation and disassembly process, high transportation difficulty, and high cost. Therefore, a shield / TBM hinged sealing performance detection device that can be repeatedly installed is designed. SUMMARY

[0004] In view of the deficiencies in the above background art, the utility model provides a shield / TBM hinged sealing performance detection device, which solves the problems of complex installation process and high installation cost of the detection device in the prior art.

[0005] The technical scheme of the utility model is as follows: a shield / TBM hinged sealing performance detection device, comprising a sealing band and a sealing lock catch for adjusting the fastening force of the sealing band; the sealing lock catch is connected to the fixed end of the sealing band, and the free end of the sealing band is adjustably connected to the sealing lock catch.

[0006] The sealing lock catch comprises a lock catch housing, a ratchet and pawl mechanism is arranged in the lock catch housing, the free end of the sealing band is provided with a carry-over plate, and the carry-over plate is inserted into the lock catch housing and cooperates with the ratchet and pawl mechanism.

[0007] Further preferably, the ratchet and pawl mechanism comprises a rotating gear and a lock tongue, the rotating gear is rotatably connected to the lock catch housing through an adjusting rod, at least one end of the adjusting rod extends out of the lock catch housing; the carry-over plate is provided with a tooth hole matched with the rotating gear; a rib plate is arranged in the lock catch housing, one end of the lock tongue is floatingly connected to the rib plate, the other end cooperates with the rotating gear, and the rib plate is provided with an unlocking assembly for unlocking the lock tongue to limit the rotating gear.

[0008] Further preferably, the unlocking assembly comprises a transverse lock rod connected with the lock tongue, the transverse lock rod being in sliding connection with the rib plate, a longitudinal lock rod being connected with the transverse lock rod, one end of the longitudinal lock rod being provided with a lock block in sliding fit with a locking hole provided on the side wall of the lock shell.

[0009] Further preferably, a spring is sleeved on the transverse lock rod, the spring being compressed and released during the sliding of the transverse lock rod relative to the rib plate, so as to realize the floating fit of the lock tongue and the rotating gear.

[0010] Further preferably, the upper top surface of the lock tongue is an arc surface, and the lower bottom surface of the lock tongue is a plane, the upper top surface and the lower bottom surface being connected in arc transition.

[0011] Further preferably, the free end of the transverse lock rod is provided with an external thread, the rear part of the lock tongue is provided with a threaded hole, and the free end of the transverse lock rod is in threaded connection with the threaded hole.

[0012] Further preferably, the lock shell is provided with a through hole at each of the front and rear ends, and a limiting plate is provided on the lock shell corresponding to the through hole, the limiting plate being provided with a limiting hole for the passing of the advancing plate; the lock shell is provided with a handle.

[0013] Further preferably, the sealing hoop comprises a steel hoop, a sealing strip being fixedly provided on the steel hoop, the lock shell being connected with the steel hoop through a connecting plate, the connecting plate being provided with a sealing gasket corresponding to the sealing strip.

[0014] Further preferably, the steel hoop comprises two symmetrically arranged steel strips, a plurality of transverse connecting steel strips being arranged between the two steel strips, the sealing strip being fixed in a semi-closed frame strip formed by the two steel strips and the transverse connecting steel strips; the sealing strip is provided with a gas hole.

[0015] Further preferably, the advancing plate is fixed on the free end of the steel hoop through a bolt, and the width of the advancing plate is less than or equal to the width of the steel hoop.

[0016] The utility model discloses beneficial effect is: the utility model uses bolt to connect with the carry -in board of sealing lock buckle of steel hoop and, and through the limiting board insertion sealing lock buckle, and through the manual insertion and the screwing of two kinds of mode of adjusting rod lock sealing lock buckle, and through the sealing gasket on sealing lock buckle to the gap is supplemented sealing, to reach the purpose of rapid installation. After use, through the adjusting unlocking mechanism to release carry -in board quickly, to reach the purpose of rapid dismounting. In the link, each component is all no obvious consumption, reaches the purpose of repeated use. The utility model discloses can realize the low -consumption detection of shield machine hinged sealing performance, detects the sealing integrity of the outermost layer sealing, and timely replaces the invalid sealing, to improve the service life and reliability of hinged device, reduces even avoids the occurrence of safety accident, improves shield construction efficiency. Compared with prior art, adopts this detection device to can effectively promote the accuracy of testing the outermost layer sealing, solves the installation inconvenience and higher cost and other problems of other scheme. Use this detection device, can realize the sealing test of the outermost layer hinged sealing in shorter time and smaller cost, timely find the hinged sealing failure phenomenon, reduce the situation of shutdown due to safety accident, to realize the construction efficiency improvement. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the utility model embodiment, below will be needed to use the drawing in the embodiment description briefly introduced, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0018] Figure 1 It is the whole structure schematic diagram of the utility model.

[0019] Figure 2 It is the sealing lock buckle structure schematic diagram of the utility model.

[0020] Figure 3 It is the sealing lock buckle internal structure schematic diagram of the utility model.

[0021] Figure 4 It is the carry -in board insertion sealing lock buckle schematic diagram.

[0022] Figure 5 It is the ratchet gear mechanism structure schematic diagram.

[0023] Figure 6 It is the ratchet gear mechanism unlocking state schematic diagram. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of the utility model.

[0025] As shown in Figure 1 Embodiment 1, a shield / TBM hinged sealing performance detection device, comprising a sealing band 1 and a sealing lock buckle 2 for adjusting the fastening force of the sealing band 1; when in use, the sealing strip of the sealing band is placed on the connecting part of the middle shield and the tail shield in the shield machine, and the position of the sealing band is adjusted so that it forms a semi-sealed structure with the outermost hinged sealing, the middle shield and the tail shield, ensuring that the sealing band has no accumulation phenomenon. The sealing lock buckle 2 is connected to the fixed end of the sealing band 1, and the free end of the sealing band 1 is adjustably connected to the sealing lock buckle 2; when in use, the fastening force of the sealing band 1 is adjusted by the sealing lock buckle 2 to adapt to the requirements of the shield hinged sealing.

[0026] The sealing lock buckle 2 in the embodiment comprises a lock buckle shell 201, a ratchet gear mechanism is arranged in the lock buckle shell 201, the free end of the sealing band 1 is provided with a carry-in plate 3, and the carry-in plate 3 is inserted into the lock buckle shell 201 and matched with the ratchet gear mechanism. Under the action of the ratchet gear mechanism, the carry-in plate drives the free end of the sealing band 1 to move, thereby adjusting the diameter of the shield body maintained, that is, adjusting the fastening force. In actual use, because the specific use scene of each construction project is different, the length and width of the sealing band can be changed, or the material of the sealing strip can be changed, so as to adapt to shield bodies of different sizes and different outer materials.

[0027] As shown in Figure 2 , 3 Embodiment 2, a shield / TBM hinged sealing performance detection device, in this embodiment as a preferred scheme, the ratchet gear mechanism comprises a rotating gear 202 and a lock tongue 203, the rotating gear 202 is rotatably connected in the lock buckle shell 201 through an adjusting rod 6, and the rotating gear and the adjusting rod are connected through a key. At least one end of the adjusting rod 6 extends out of the lock buckle shell 201. When in use, the operator manually rotates the adjusting rod, thereby driving the rotation of the rotating gear. The carry-in plate 3 is provided with a plurality of tooth holes 301 matched with the rotating gear 202; the tooth hole is a round rectangular hole, used for meshing and advancing of the rotating gear. By rotating the rotating gear, the gear teeth of the rotating gear are embedded in the carry-in plate and advanced in the rotating direction, so as to advance the carry-in plate, thereby advancing the sealing band 1 connected with the carry-in plate.

[0028] The locking tongue 203 is floatingly connected to the rib plate 204 at one end and cooperates with the rotating gear 202 at the other end. The rib plate 204 is provided with an unlocking assembly for unlocking the rotating gear 202 limited by the locking tongue 203. In the normal state, the locking tongue is extended and contacts the rotating gear, thereby limiting the rotating direction of the rotating gear. The unlocking assembly can retract the locking tongue and release the limitation on the rotating gear.

[0029] In the embodiment, the unlocking assembly includes a transverse locking rod 205 connected to the locking tongue 203, and the axial direction of the transverse locking rod 205 is consistent with the floating direction of the locking tongue. The transverse locking rod 205 is slidingly connected to the rib plate 204, and a longitudinal locking rod 206 is connected to the transverse locking rod 205. One end of the longitudinal locking rod 206 is provided with a locking block 207, and the locking block 207 slidingly cooperates with a locking hole 208 arranged on the side wall of the lock shell 201. When the rotating gear 202 needs to be unlocked, the locking block is pushed to move away from the adjusting rod 6, and the longitudinal locking rod 206 drives the transverse locking rod 205 to move away from the rotating gear 202, so that the locking tongue is separated from the rotating gear, thereby releasing the one-way rotation limitation of the locking tongue on the rotating gear. Then, manual operation can be performed to realize the directional movement of the carry-in plate and the sealing hoop.

[0030] The other structures are the same as those in Embodiment 1.

[0031] In the embodiment, the transverse locking rod 205 is provided with a spring 209. During the sliding process of the transverse locking rod 205 relative to the rib plate 204, the spring 209 is compressed and released, thereby realizing the floating cooperation of the locking tongue 203 and the rotating gear 202. During the rotation of the rotating gear 202, the teeth of the rotating gear 202 can perfectly cooperate with the tooth holes on the carry-in plate, thereby realizing the step-by-step movement of the carry-in plate.

[0032] In the embodiment, the upper top surface of the locking tongue 203 is an arc surface, the lower bottom surface of the locking tongue 203 is a plane, and the upper top surface and the lower bottom surface are connected in a circular arc transition. The arc surface ensures smooth contact with the rotating gear and does not affect the normal rotation. The lower bottom surface is a plane, which limits the reverse rotation of the rotating gear 202 under normal circumstances.

[0033] In the embodiment, the free end of the transverse locking rod 205 is provided with an external thread, the rear part of the locking tongue 203 is provided with a threaded hole, and the free end of the transverse locking rod 205 is threadedly connected to the threaded hole. The detachable connection of the locking tongue 203 is realized, thereby facilitating replacement.

[0034] As a preferred solution in the embodiment, the lock shell 201 is provided with through holes at both ends, and the lock shell 201 is provided with a limiting plate 210 corresponding to the through holes. The limiting plate limits the insertion position of the carry-in plate. The limiting plate 210 is provided with a limiting hole for the carry-in plate 3 to pass through. The limiting hole facilitates the smooth and accurate insertion of the carry-in plate into the lock shell 201 and the rapid meshing with the rotating teeth. The lock shell 201 is provided with a handle 211 for lifting and pulling the sealing lock, facilitating the rapid disassembly and assembly of the sealing lock 2.

[0035] The other structures are the same as those in Embodiment 2.

[0036] As shown in FIGS. Figure 4 , 5 , 6, Embodiment 4, a shield / TBM hinged sealing performance detection device. The sealing band 1 in the embodiment includes a steel band 101, and the steel band 101 is fixedly provided with a sealing strip 102 for the sealing of the main hinge. The lock shell 201 is connected to the steel band 101 through a connecting plate 4, and the connecting plate 4 is provided with a sealing gasket 5 corresponding to the sealing strip 102. The sealing gasket contacts the sealing strip to provide a sealing connection function. The connecting plate is located on the side of the sealing lock and is used to connect the sealing lock and the sealing band.

[0037] In the embodiment, the steel band 101 includes two symmetrically arranged steel strips, and a plurality of transversely connected steel bands are arranged between the two steel strips. The sealing strip 102 is fixed in the semi-closed frame strip formed by the two steel strips and the transversely connected steel bands. The sealing strip 102 is provided with air holes for air injection.

[0038] In the embodiment, the carry-in plate 3 is fixed to the free end of the steel band 101 through a bolt 7, facilitating disassembly and assembly. The width of the carry-in plate 3 is less than or equal to the width of the steel band 101, ensuring that the steel band 101 can smoothly enter the lock shell 201 under the action of the carry-in plate 3.

[0039] The other structures are the same as those in Embodiment 3.

[0040] The working process is divided into an installation working process and a disassembly working process, which will be described below. The installation working process is as follows: S01. Pre-assemble. The sealing lock, the sealing band, and the carry-in plate are sequentially assembled in order, and the connection mode is to first install the internal components of the sealing lock, and then install the shell and the connecting plate. The installation direction is consistent with the direction of the arrow in FIG. Figure 1 As shown in FIGS. Figure 4After installation, the sealing strip and the steel band are placed on the connecting plate of the sealing lock buckle outlet, the fixing bolts are tightened, and the carry-in plate is installed on the steel hoop at the other end of the sealing hoop; S02. Fix the sealing hoop. Place the sealing strip of the sealing hoop on the connecting part of the shield and the tail shield in the shield tunnel, and adjust the position of the sealing band to form a semi-sealed structure with the outermost articulated sealing, the middle shield and the tail shield, ensure that the sealing band has no accumulation phenomenon, and the open end and the sealing lock buckle are located at a position convenient for personnel operation; S03. Install the carry-in plate. The carry-in plate installed at the other end is inserted into the sealing lock buckle from the limiting plate, and is pushed inward until the carry-in plate extends from the limiting plate at the other end; S04. Pre-tighten the hoop. At the other end of the sealing lock buckle, until it is difficult to continue to pull; S05. Tighten the hoop. Rotate the adjusting rod through the tool until the gear cannot enter the next tooth hole. At this time, the sealing device is installed, air injection can be carried out through the air hole reserved on the sealing band, the installation process is ended, and the working schematic process is as shown in Figure 5 .

[0041] The disassembly process is: S01. Release the hoop. Pull the unlocking assembly to make the lock tongue retract, release the gear, and make it reverse rotate; S02. Extract the carry-in band. Extract the carry-in band from the inlet, check the state of the tooth hole on the carry-in plate, and replace it in time if damaged; S03. Recover the hoop. Recover the hoop from the equipment, and check the integrity of each component; S04. Disassemble and transport. According to the sequence, the carry-in plate, the sealing hoop and the sealing lock buckle are disassembled in turn, and are saved for standby after maintenance, and the process is ended.

[0042] The above only describes the preferred embodiments of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A shield / TBM articulation seal performance testing device, characterized by: The utility model provides a sealing lock buckle (2) and sealing hoop (1) for adjusting the fastening force of sealing hoop (1), the sealing lock buckle (2) is connected to the fixed end of sealing hoop (1), and the free end of sealing hoop (1) is adjustably connected to the sealing lock buckle (2). The sealing lock buckle (2) comprises a lock buckle shell (201) provided with a ratchet gear mechanism, and the free end of the sealing hoop (1) is provided with a carry-in plate (3) inserted into the lock buckle shell (201) and matched with the ratchet gear mechanism.

2. The shield / TBM articulation seal performance testing device of claim 1, wherein: The ratchet gear mechanism comprises a rotating gear (202) and a lock tongue (203), the rotating gear (202) is rotatably connected to the lock buckle shell (201) through an adjusting rod (6), at least one end of the adjusting rod (6) extends out of the lock buckle shell (201), the carry-in plate (3) is provided with a tooth hole (301) matched with the rotating gear (202), the lock buckle shell (201) is provided with a rib plate (204), one end of the lock tongue (203) is floatingly connected to the rib plate (204), the other end of the lock tongue (203) is matched with the rotating gear (202), and the rib plate (204) is provided with an unlocking assembly for unlocking the lock tongue (203) to limit the rotating gear (202).

3. The shield / TBM articulation seal performance testing apparatus of claim 2, wherein: The unlocking assembly comprises a transverse lock rod (205) connected to the lock tongue (203), the transverse lock rod (205) is slidingly connected to the rib plate (204), the transverse lock rod (205) is connected with a longitudinal lock rod (206), one end of the longitudinal lock rod (206) is provided with a lock block (207), and the lock block (207) is slidingly matched with a locking hole (208) arranged on the side wall of the lock buckle shell (201).

4. The shield / TBM articulation seal performance testing apparatus of claim 3, wherein: A spring (209) is arranged on the transverse lock rod (205), and the spring (209) is compressed and released during the sliding of the transverse lock rod (205) relative to the rib plate (204), so that the floating matching of the lock tongue (203) and the rotating gear (202) is realized.

5. The shield / TBM articulation seal performance testing apparatus of claim 3 or 4, wherein: The upper top surface of the lock tongue (203) is an arc surface, the lower bottom surface of the lock tongue (203) is a plane, and the upper top surface and the lower bottom surface are connected in a circular arc transition mode.

6. The shield / TBM articulation seal performance testing apparatus of claim 5, wherein: The free end of the transverse lock rod (205) is provided with an external thread, the rear part of the lock tongue (203) is provided with a threaded hole, and the free end of the transverse lock rod (205) is threadedly connected with the threaded hole.

7. The shield / TBM articulation seal performance detection device of claim 1 or 6, wherein: The lock buckle shell (201) is provided with through holes at the front and rear ends, the lock buckle shell (201) is provided with a limiting plate (210) corresponding to the through holes, the limiting plate (210) is provided with a limiting hole for the carry-in plate (3) to pass through, and the lock buckle shell (201) is provided with a handle (211).

8. The shield / TBM articulation seal performance testing apparatus of claim 1, wherein: The sealing hoop (1) comprises a steel hoop (101), the steel hoop (101) is fixedly provided with a sealing strip (102), the lock buckle shell (201) is connected with the steel hoop (101) through a connecting plate (4), and the connecting plate (4) is provided with a sealing gasket (5) corresponding to the sealing strip (102).

9. The shield / TBM articulation seal performance testing apparatus of claim 8, wherein: The steel hoop (101) comprises two symmetrical steel strips, a plurality of transverse connecting steel bands are arranged between the two steel strips, and the sealing strip (102) is fixed in a semi-closed frame strip formed by the two steel strips and the transverse connecting steel bands; and the sealing strip (102) is provided with a gas hole.

10. The shield / TBM articulation seal performance testing apparatus of claim 9, wherein: The carry plate (3) is fixed at the free end of the steel band (101) by bolts (7), and the width of the carry plate (3) is less than or equal to the width of the steel band (101).

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