Intelligent shield sealing gate and control method thereof

Abstract

The invention relates to an intelligent shield sealing gate and a control method thereof, and the gate comprises a door frame assembly which comprises a door frame body, and the door frame body is provided with a supporting wedge-shaped surface structure; the flashboard assembly comprises a flashboard body, and a pressing wedge-shaped surface structure is arranged on the flashboard body; the gate plate body is connected with a driving assembly; the guide structure comprises a guide plate and a guide column, the guide plate is provided with a guide groove, the guide column is sleeved with the guide groove, and the guide groove comprises an isolation section and a sealing section; the sealing and slurry leakage detection structure is used for sealing, pressure bearing capacity testing and slurry leakage detection between the door frame body and the gate plate body; comprising a sealing part, when the guide column is located on the isolation section, the pressing wedge-shaped face structure and the supporting wedge-shaped face structure are mutually spaced, and the gate plate body and the sealing part are arranged in a spaced mode; when the guide column is located on the sealing section, the gate plate body presses and fits the sealing part. And a control unit. The pressure bearing capacity is high, sealing abrasion can be reduced, whether slurry leaks or not can be detected in real time, and the working sealing stability of the gate is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to a sealing gate for intelligent shield and a control method thereof. Background Art

[0002] In tunnel construction technology, the air cushion slurry shield construction method is the most effective measure to ensure controllable surface settlement, among which the reliability of the rear-mounted gate plays a decisive role in the safety of air cushion operation. However, the existing gate design has the following shortcomings:

[0003] 1) In order to withstand the mud pressure in the mud and water tank, the seal is compressed to a certain extent at the beginning of installation. The gate is always close to the seal and the slideway during the opening and closing process, resulting in serious wear of the seal and the guide rail.

[0004] 2) It is impossible to quickly detect whether the seal is damaged. Only when the gate cannot be closed, enter the warehouse to check the wear degree of the seal and guide rail.

[0005] Therefore, the inventor, relying on many years of experience and practice in related industries, proposes a sealing gate for intelligent shield and a control method thereof to overcome the defects of the prior art. Summary of the invention

[0006] The purpose of the present invention is to provide an intelligent sealing gate for shield and a control method thereof, so as to solve the problems of severe gate seal wear and difficulty in detecting leakage in the prior art. The present invention has high pressure bearing capacity, can reduce seal wear and detect leakage in real time, and ensure the working sealing stability of the gate.

[0007] The object of the present invention is achieved by providing a sealing gate for an intelligent shield, which is arranged on a front diaphragm of a shield body and comprises:

[0008] The door frame assembly comprises a door frame body, on which a supporting wedge-shaped surface structure is arranged;

[0009] The gate assembly comprises a gate body, on which a pressing wedge surface structure is arranged; and a driving assembly for driving the gate body to be lifted and lowered is connected;

[0010] The guide structure comprises a guide plate and a guide column respectively arranged on the door frame body or the gate body, wherein the guide plate is provided with a guide groove for sleeve-mounting the guide column, and the guide groove comprises an isolation section and a sealing section;

[0011] A sealing and slurry leakage detection structure is arranged on the door frame body, and is used for sealing, pressure bearing capacity testing and slurry leakage detection between the door frame body and the gate body; the sealing and slurry leakage detection structure includes a sealing portion, when the guide column is located in the isolation section, the pressing wedge surface structure and the supporting wedge surface structure are spaced apart from each other, and the gate body and the sealing portion are spaced apart; when the guide column is located in the sealing section, the pressing wedge surface structure is pressed and sealed on the supporting wedge surface structure so that the gate body is pressed and fitted against the sealing portion;

[0012] The control unit is electrically connected to the driving assembly and the gate assembly.

[0013] In a preferred embodiment of the present invention, a bottom locking portion is provided at the bottom of the door frame body, and when the gate body is closed and sealed at the door frame body, the bottom locking portion locks the gate body from the bottom; the bottom locking portion is electrically connected to the control portion.

[0014] In a preferred embodiment of the present invention, a top locking portion is provided above the door frame body, and when the gate body rises and leaves the door frame body, the top locking portion locks the gate body from the top; the top locking portion is electrically connected to the control portion.

[0015] In a preferred embodiment of the present invention, the supporting wedge surface structure includes a first top wedge surface, a first middle wedge surface and a first bottom wedge surface, and the clamping wedge surface structure includes a second top wedge surface, a second middle wedge surface and a second bottom wedge surface, and the second top wedge surface, the second middle wedge surface and the second bottom wedge surface can be sealed and clamped on the first top wedge surface, the first middle wedge surface and the first bottom wedge surface, respectively.

[0016] In a preferred embodiment of the present invention, the guide groove also includes an asymptotic section and a vertical section connecting the isolation section and the sealing section; when the guide column is located in the asymptotic section, the gate body approaches the door frame body under the constraint of the guide groove; when the guide column is located in the vertical section, the gate body moves vertically downward under the constraint of the guide groove until the clamping wedge surface structure contacts the supporting wedge surface structure; the guide column enters the sealing section from the vertical section, and the second top wedge body, the second middle wedge body and the second bottom wedge body can be sealed and stopped on the first top wedge body, the first middle wedge body and the first bottom wedge body respectively.

[0017] In a preferred embodiment of the present invention, the sealing portion includes an airbag sealing unit and a steamed bun-shaped sealing unit; an airbag sealing groove and a steamed bun-shaped sealing groove are arranged at intervals on the door frame body, the airbag sealing unit is embedded in the airbag sealing groove, and the steamed bun-shaped sealing unit is embedded in the steamed bun-shaped sealing groove; a sealing groove is arranged between the airbag sealing groove and the steamed bun-shaped sealing unit groove, and the sealing groove is used for inflating and maintaining pressure to detect sealing or for injecting grease to seal leakage; a plurality of grease interfaces connected to the sealing groove are arranged at intervals along the circumferential direction on the door frame body.

[0018] In a preferred embodiment of the present invention, two guide grooves are arranged in parallel and at intervals on the guide plate, and the two guide grooves are arranged at intervals in the longitudinal and transverse directions; two guide columns are arranged at intervals on the side of the gate body, and the two guide columns can be slidably mounted in the two guide grooves respectively.

[0019] In a preferred embodiment of the present invention, the drive assembly includes two gate cylinders arranged in a vertical direction and parallel to each other, each of the gate cylinders is electrically connected to the control unit, and each of the gate cylinders feeds back real-time thrust to the control unit; each of the gate cylinders includes a gate cylinder barrel and a gate cylinder rod, a first hinge seat is arranged on the front partition of the shield body above the door frame body, a second hinge seat is arranged at the bottom end of the gate plate body, a first end of the gate cylinder barrel is hinged to the first hinge seat, a first end of the gate cylinder rod is sealed and penetrates through the second end of the gate cylinder barrel, and the second end of the gate cylinder rod is hinged to the second hinge seat.

[0020] In a preferred embodiment of the present invention, at least one side of the gate body is connected to a distance detector, and the distance detector is used to detect the distance between the adjacent surfaces of the gate body and the door frame body in real time; the distance detector is electrically connected to the control unit.

[0021] In a preferred embodiment of the present invention, the guide structure also includes a guide block arranged on the side of the gate body, and the guide block can slide along the guide plate; a guide bearing is arranged at the end of the guide column, and the guide bearing is slidably sleeved in the guide groove.

[0022] In a preferred embodiment of the present invention, the bottom locking part includes a bottom pin pulling cylinder, a bottom gate plate fixing seat, a bottom pin pulling cylinder fixing seat and a bottom ear plate, the bottom pin pulling cylinder fixing seat is arranged on the front partition of the shield body and is located below the door frame body, the bottom pin pulling cylinder includes a bottom pin pulling cylinder barrel and a bottom pin pulling cylinder rod, the bottom pin pulling cylinder barrel is connected to the bottom pin pulling cylinder fixing seat, and the bottom pin pulling cylinder rod is arranged against the top surface of the bottom gate plate fixing seat; the bottom ear plate is arranged at the bottom end of the gate plate body, and a bottom socket is arranged on the bottom ear plate, and the bottom pin pulling cylinder rod can be inserted into the bottom socket; the bottom pin pulling cylinder is electrically connected to the control part.

[0023] In a preferred embodiment of the present invention, the top locking part includes a top pin pulling cylinder, a top gate plate fixing seat, a top pin pulling cylinder fixing seat and a top ear plate, the top pin pulling cylinder fixing seat is arranged on the front partition of the shield body and is located above the door frame body, the top pin pulling cylinder includes a top pin pulling cylinder barrel and a top pin pulling cylinder rod, the top pin pulling cylinder barrel is connected to the top pin pulling cylinder fixing seat, and the top pin pulling cylinder rod is arranged against the bottom surface of the top gate plate fixing seat; the top ear plate is arranged at the top end of the gate plate body, and a top socket is arranged on the top ear plate, and the top pin pulling cylinder rod can be inserted into the top socket; the top pin pulling cylinder is electrically connected to the control part.

[0024] The object of the present invention can also be achieved in that a control method for the aforementioned intelligent shield sealing gate comprises:

[0025] The guide groove comprises an isolation section, an asymptotic section, a vertical section and a sealing section;

[0026] During the opening process of the gate assembly, the drive assembly lifts the gate body, the guide column on the gate body rises in the sealing section of the guide groove, and the pressing wedge surface structure moves upward away from the supporting wedge surface structure; the guide column enters the isolation section through the vertical section and the asymptotic section, and the gate body moves away from the door frame assembly; the drive assembly continuously lifts the gate body until the gate is opened;

[0027] During the opening process of the gate assembly, the driving assembly pushes the gate body to descend, the guide column on the gate body descends in the isolation section of the guide groove, and the gate body and the door frame body maintain a lateral spacing and descend; the guide column enters the sealing section through the asymptotic section and the vertical section, and the clamping wedge surface structure moves downward and in the direction close to the door frame body until the clamping wedge surface structure clamps the supporting wedge surface structure; the gate body is pressed against the sealing portion, and the gate is closed.

[0028] As described above, the intelligent shield sealing gate and control method thereof of the present invention have the following beneficial effects:

[0029] The present invention solves the problems of serious gate seal wear and difficulty in detecting slurry leakage in the prior art, and provides an intelligent shield sealing gate with high pressure bearing capacity, which can reduce seal wear and detect slurry leakage in real time.

[0030] In the present invention, when the gate body descends and blocks the door frame body, the compression wedge surface structure is compressed and sealed on the supporting wedge surface structure, and the compression and sealing of the gate body and the door frame body are realized through the matching wedge surface structure, so as to realize the function of sealing the external mud pressure; the driving assembly can provide a downward compression force for the gate body, and the sealing and leakage detection structure are compressed more and more tightly to ensure the pressure bearing capacity; during the lifting and lowering operation of the gate body, the guide column is located in the isolation section of the guide groove, and the gate body is away from the door frame body, so as to ensure that the gate body and the supporting wedge surface structure on the door frame body are not in contact within most of the travel range, thereby reducing the wear of the seal; the guide groove on the guide plate is opened along the set trajectory, so as to ensure the lifting stability of the gate body and the precise control of the movement trajectory; the sealing and leakage detection structure ensures the sealing between the door frame body and the gate body, and can realize the pressure bearing capacity test and leakage detection, so as to further ensure the sealing of the gate; the operation of the gate body is controlled as a whole by the control unit, and the reliable operation of the gate is realized through intelligent detection control, so as to ensure the intelligence level of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0032] in:

[0033] Figure 1 It is a front view of the sealing gate for the intelligent shield of the present invention when the gate is closed.

[0034] Figure 2 It is a cross-sectional view of the sealing gate for the intelligent shield of the present invention when the gate is closed.

[0035] Figure 3 It is a cross-sectional view of the sealing gate for the intelligent shield of the present invention at the guide plate when the gate is closed.

[0036] Figure 4 This is a front view of the sealing gate for the intelligent shield of the present invention when the gate is open.

[0037] Figure 5 It is a cross-sectional view of the sealing gate for the intelligent shield of the present invention when the gate is open.

[0038] Figure 6It is a cross-sectional view of the sealing gate for intelligent shield of the present invention at the guide plate when the gate is open.

[0039] Figure 7 It is a front view of the door frame body of the present invention.

[0040] Figure 8 It is a cross-sectional view of the door frame body of the present invention.

[0041] Fig. 9 It is a front view of the gate body of the present invention.

[0042] Fig.10 It is a connection exploded diagram of the distance detector of the present invention.

[0043] Fig.11 It is a side view of the gate body of the present invention.

[0044] Fig.12 It is a cross-sectional view of the gate body and the door frame body of the present invention when they are attached.

[0045] Fig.13 It is a schematic diagram of the sealing and leakage detection structure of the present invention.

[0046] Fig.14 It is a schematic diagram of the installation of the guide block of the present invention.

[0047] Fig.15 for Fig.14 Sectional view at AA.

[0048] Fig.16 for Fig.14 Cross-sectional view at BB in the middle.

[0049] Fig.17 This is a schematic diagram of the top pin puller cylinder in the extended and locked state.

[0050] Fig.18 This is a schematic diagram of the top pin extraction cylinder in the retracted and unlocked state.

[0051] Fig.19 This is a schematic diagram of the bottom pin extraction cylinder extending and locking state.

[0052] Fig. 20 This is a schematic diagram of the bottom pin extraction cylinder retracted and unlocked state.

[0053] Fig.21 It is a schematic diagram when the guide column is located in the isolation section of the guide groove.

[0054] Fig. 22 Schematic diagram of the guide column before entering the sealing section.

[0055] Fig.23 Schematic diagram of the guide column entering the sealing section.

[0056] Fig.24 It is a curve diagram showing the relationship between the distance between the gate body and the door frame body and the stroke of the gate cylinder during the gate closing process.

[0057] Fig.25 This is a curve diagram showing the relationship between the gate cylinder thrust and the gate cylinder stroke during the gate closing process.

[0058] Fig.26 This is the display interface diagram of the upper computer for gate cylinder control.

[0059] In the figure:

[0060] 1. Door frame assembly;

[0061] 101, door frame body; 102, first top wedge-shaped body; 103, first middle wedge-shaped body; 104, first bottom wedge-shaped body; 105, airbag sealing groove; 106, steamed bun-shaped sealing groove; 107, sealing groove; 108, grease interface;

[0062] 2. Gate assembly;

[0063] 201, gate body; 202, top ear plate; 203, bottom ear plate; 204, guide column fixing seat; 205, guide column connecting section; 206, connecting seat; 207, distance detector; 208, lifting ear; 209, second hinged seat; 210, reinforcing rib plate; 2011, second top wedge-shaped body; 2012, second middle wedge-shaped body; 2013, second bottom wedge-shaped body;

[0064] 3. Guide plate; 301. Guide groove;

[0065] 4. The first hinge seat;

[0066] 5. Gate cylinder;

[0067] 6. Top pin-pulling cylinder;

[0068] 7. Top gate fixing seat;

[0069] 8. Top pin-pulling cylinder fixing seat;

[0070] 9. Bottom pin-pulling cylinder;

[0071] 10. Bottom gate fixing seat;

[0072] 11. Bottom pin-pulling cylinder fixing seat;

[0073] 12. Airbag sealing unit;

[0074] 13. Bun-shaped sealing unit;

[0075] 14. Seal grease channel;

[0076] 15. Guide block;

[0077] 16. Guide bearing. DETAILED DESCRIPTION

[0078] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0079] The specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be considered to belong to the scope of the present invention. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0080] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0081] like Figures 1 to 26 As shown, the present invention provides a sealing gate for an intelligent shield, which is arranged on the front partition of the shield body, and includes:

[0082] The door frame assembly 1 includes a door frame body 101, on which a supporting wedge-shaped surface structure is arranged; the door frame body 101 is welded to a through hole (existing technology) on a front bulkhead of a shield body;

[0083] The gate assembly 2 includes a gate body 201, on which a pressing wedge surface structure is arranged; the gate body 201 is connected to a driving assembly for driving the gate body to rise and fall; an open gate is arranged on the door frame body 101, the gate body 201 descends to block the gate, and the gate body 201 rises to leave the gate;

[0084] The guide structure comprises a guide plate 3 and a guide column respectively arranged on the door frame body 101 or the gate body 201, that is, the guide plate 3 is arranged on the door frame body 101, and the guide column is arranged on the gate body 201, or the guide plate 3 is arranged on the gate body 201, and the guide column is arranged on the door frame body 101; the guide plate 3 is provided with a guide groove 301 opened along a set track, the guide column is sleeved in the guide groove 301, and the guide groove 301 includes an isolation section and a sealing section;

[0085] The sealing and leakage detection structure is arranged on the door frame body, and is used for sealing, pressure bearing capacity test and leakage detection between the door frame body 101 and the gate body 201; the sealing and leakage detection structure includes a sealing part, when the guide column is located in the isolation section, the compression wedge surface structure and the supporting wedge surface structure are arranged with a lateral spacing, and the gate body 201 and the sealing part are arranged with a spacing; when the guide column is located in the sealing section, the compression wedge surface structure is compressed and sealed on the supporting wedge surface structure so that the gate body 201 is compressed and fits the sealing part, so as to achieve the purpose of sealing and fitting the gate body 201 and the door frame body 101, and realize the effect of sealing the external mud pressure; the driving assembly can provide a downward compression force for the gate body 201, so that the seal between the compression wedge surface structure and the supporting wedge surface structure becomes tighter and tighter, thereby ensuring the pressure bearing capacity;

[0086] The control unit, the driving assembly, and the gate assembly 2 are electrically connected to the control unit.

[0087] The present invention solves the problems of serious gate seal wear and difficulty in detecting slurry leakage in the prior art, and provides an intelligent shield sealing gate with high pressure bearing capacity, which can reduce seal wear and detect slurry leakage in real time.

[0088] In the present invention, when the gate body 201 descends and blocks the door frame body 101, the compression wedge surface structure is compressed and sealed on the supporting wedge surface structure, and the gate body 201 and the door frame body 101 are compressed and sealed by the matching wedge surface structure, so as to achieve the function of sealing the external mud pressure; the driving assembly can provide a downward compression force for the gate body 201, and the sealing and leakage detection structure is compressed more and more tightly to ensure the pressure bearing capacity; during the lifting and lowering operation of the gate body 201, the guide column is located in the isolation section of the guide groove 301, and the gate body 201 is away from the door frame body 101, ensuring that most of the operation The gate body 201 does not contact the supporting wedge surface structure on the door frame body 101 within the range of the range, which reduces the wear of the seal; the guide groove 301 on the guide plate 3 is opened along the set trajectory, which ensures the lifting stability of the gate body 201 and the precise control of the movement trajectory; the sealing and leakage detection structure ensures the sealing between the door frame body 101 and the gate body 201, and can realize the pressure bearing capacity test and leakage detection, further ensuring the sealing of the gate; the operation of the gate body 201 is controlled as a whole by the control unit, and the reliable operation of the gate is achieved through intelligent detection control, which ensures the intelligence level of the present invention.

[0089] Further, if Figure 1 , Figure 4 As shown, a bottom locking part is provided at the bottom of the door frame body 101. When the gate body 201 is closed and sealed at the door frame body 101, the bottom locking part locks the gate body 201 from the bottom; the bottom locking part is electrically connected to the control part. The bottom locking part ensures the stability of the gate body 201 in the closed state to prevent the gate body 201 from opening due to misoperation.

[0090] Further, if Figure 1 , Figure 4 As shown, a top locking part is provided above the door frame body 101. When the gate body 201 rises and leaves the door frame body 101, the top locking part locks the gate body 201 from the top; the top locking part is electrically connected to the control part. The top locking part ensures the stability of the gate body 201 in the open state, and avoids the gate body 201 from being closed due to misoperation.

[0091] Further, if Figure 8 , Fig.11 , Fig.12 As shown, the supporting wedge surface structure includes a first top wedge body 102, a first middle wedge body 103 and a first bottom wedge body 104, and the clamping wedge surface structure includes a second top wedge body 2011, a second middle wedge body 2012 and a second bottom wedge body 2013. The second top wedge body 2011, the second middle wedge body 2012 and the second bottom wedge body 2013 can be sealed and clamped on the first top wedge body 102, the first middle wedge body 103 and the first bottom wedge body 104 respectively.

[0092] In one embodiment, if Figure 8 As shown, two blocks are welded in the middle of the door frame body 101, and several blocks are welded at the bottom; and a first top wedge 102 is processed on the top of the door frame body 101, a first middle wedge 103 is processed on the two blocks in the middle of the door frame body 101, and a first bottom wedge 104 is processed on the block at the bottom of the door frame body 101.

[0093] like Fig.11 As shown, the second top wedge 2011, the second middle wedge 2012 and the second bottom wedge 2013 are directly machined on the gate body 201, and correspond to the first top wedge 102, the first middle wedge 103 and the first bottom wedge 104 respectively.

[0094] Further, if Figure 2 , Figure 5 , Fig.21 , Fig. 22 , Fig.23 As shown, the guide groove 301 also includes an asymptotic section and a vertical section connecting the isolation section and the sealing section; when the guide column is located in the asymptotic section, the gate body 201 is close to the door frame body 101 under the constraint of the guide groove 301; when the guide column is located in the vertical section, the gate body 201 is vertically downward under the constraint of the guide groove 301 until the compression wedge surface structure contacts the supporting wedge surface structure; the guide column enters the sealing section from the vertical section, and the second top wedge body, the second middle wedge body and the second bottom wedge body can be sealed and clamped on the first top wedge body 102, the first middle wedge body 103 and the first bottom wedge body 104 respectively.

[0095] The gate assembly 2 realizes the opening and closing process of the gate body 201 under the action of the driving assembly, and opens and closes according to the designed guide trajectory under the constraint of the guide plate 3; under the constraint of the guide groove 301, the gate body 201 and the sealing part have non-contact relative movement in most of the stroke range, which reduces the wear of the seal; when the gate body 201 is about to close, under the constraint of the guide groove 301, the clamping wedge surface structure on the gate assembly 2 enters the wedge surface matching area, and finally squeezes the seal through the wedge surface constraint, thereby closing the gate body 201.

[0096] Further, if Figure 2 , Figure 5 , Figure 7 , Fig.12 , Fig.13As shown, the sealing part includes an airbag sealing unit 12 and a steamed bun-shaped sealing unit 13; an airbag sealing groove 105 and a steamed bun-shaped sealing groove 106 are arranged at intervals on the door frame body, the airbag sealing unit 12 is embedded in the airbag sealing groove 105, and the steamed bun-shaped sealing unit 13 is embedded in the steamed bun-shaped sealing groove 106; a sealing groove 107 is arranged between the airbag sealing groove 105 and the steamed bun-shaped sealing groove 106, and the sealing groove 107 is used for inflating and maintaining pressure to detect the sealing performance or for injecting grease to seal leakage; a plurality of grease interfaces 108 connected to the sealing groove 107 are arranged at intervals along the circumferential direction on the door frame body 101.

[0097] The bun-shaped sealing unit 13 constitutes the first seal to isolate external water and soil pressure or mud pressure; the airbag sealing unit 12 is inflated and expands, and when the first seal fails, it serves as the second seal to isolate external pressure (water and soil pressure or mud pressure); the sealing groove 107 is arranged between the airbag sealing unit 12 and the bun-shaped sealing unit 13, and can be inflated to maintain pressure, and can also be injected with lubricating grease through the sealing grease channel 14 to lubricate the seal, and in an emergency, shield tail grease or polyurethane can be injected to play an emergency sealing role.

[0098] The airbag sealing unit 12 can be inflated through the pipeline to fit tightly against the gate body 201, so that the sealing groove 107 (grease groove) between the steamed bun-shaped sealing unit 13 and the airbag sealing unit 12 forms a sealed cavity; normally when the gate is closed, the grease interface 108 is inflated and pressure maintained to detect whether the sealing performance of the steamed bun-shaped sealing unit 13 is good; if there is leakage during pressure maintenance, a new seal can be replaced.

[0099] like Fig.13 As shown, in a pressurized warehouse, personnel cannot always observe the operating status of the gate assembly 2 in the warehouse to check whether the seal is leaking. The airbag sealing unit 12 is inflated through the reserved pipeline to expand it and close to the gate body 201, so that the sealing groove 107 between the steamed bun-shaped sealing unit 13 and the airbag sealing unit 12 forms a sealed cavity; the grease interface 108 is inflated and pressure maintained to detect whether the sealing performance of the steamed bun-shaped sealing unit 13 is good. In the case of a large amount of leakage due to failure to replace the seal in time, shield tail grease is injected through the grease interface 108 to fill the sealing groove 107 (grease groove), thereby achieving the purpose of emergency sealing.

[0100] Further, if Figure 3 , Figure 6 As shown, two guide grooves 301 are arranged in parallel and at intervals on the guide plate 3, and the two guide grooves 301 are arranged at intervals in the longitudinal and transverse directions; two guide posts are arranged at intervals on the side of the gate body 201, and the two guide posts can be slidably sleeved in the two guide grooves 301 respectively. A pair of parallel guide posts and guide grooves 301 are used on one side for motion guidance to ensure the smooth movement of the gate body 201.

[0101] Further, if Figure 1 , Figure 4 , Fig. 9 As shown, the drive assembly includes two gate cylinders 5 which are arranged in the vertical direction and parallel to each other, each gate cylinder 5 is electrically connected to the control unit, and each gate cylinder 5 feeds back real-time thrust to the control unit; each gate cylinder 5 includes a gate cylinder barrel and a gate cylinder rod, a first hinge seat 4 is arranged on the front partition of the shield body above the door frame body 101, a second hinge seat 209 is arranged at the bottom end of the gate plate body 201, a first end of the gate cylinder barrel is hinged to the first hinge seat 4, a first end of the gate cylinder rod is sealed and penetrates through the second end of the gate cylinder barrel, and the second end of the gate cylinder rod is hinged to the second hinge seat 209.

[0102] The gate body 201 is moved and opened by the gate cylinder 5. During the gate closing process, the gate cylinder 5 can provide real-time feedback of the thrust and compare it with the normal test thrust to determine whether the gate body 201 opening and closing process is abnormal.

[0103] Further, if Fig. 9 , Fig.10 As shown, at least one side of the gate body is connected to a distance detector 207, which is used to detect the distance between the adjacent surfaces of the gate body 201 and the door frame body 101 in real time; the distance detector 207 is electrically connected to the control unit. A connecting seat 206 is provided on the gate body 201, and the distance detector 207 is connected to the connecting seat 206 by bolts.

[0104] During the gate closing process, the distance detector 207 installed on the gate assembly 2 can detect the actual distance between the gate body 201 and the door frame body 101 in real time, and compare it with the theoretical design distance to determine the degree of wear of the guide column, and then replace the guide column in time.

[0105] Further, if Figure 1 , Figure 4 , Fig. 9 , Fig.14 , Fig.15 , Fig.16 As shown, the guide structure also includes a guide block 15 arranged on the side of the gate body 201, and the guide block 15 can slide along the guide plate 3; a guide bearing 16 is arranged at the end of the guide column, and the guide bearing 16 is slidably sleeved in the guide groove 301.

[0106] A guide post fixing seat 204 and a guide post connecting section 205 are provided on the gate body 201 . The guide post connecting section 205 is connected to the guide post fixing seat 204 by tight fit; and the guide post connecting section 205 is connected to the guide post.

[0107] Further, if Fig. 9As shown, a lifting lug 208 for lifting is also provided on the gate body 201, which is used for lifting during the disassembly and assembly process of the gate body 201.

[0108] A reinforcing rib plate 210 is also provided on the gate body 201 to ensure the structural rigidity and strength of the gate body 201 and to prevent the gate body 201 from deforming and causing sealing failure.

[0109] In a specific embodiment of the present invention, a guide plate 3 is provided on both sides of the door frame body 101, and two parallel guide grooves 301 are provided on each guide plate 3. Guide columns are provided on both sides of the gate body 201, and each guide column is slidably inserted into the guide groove 301. The length of the guide plate 3 is greater than that of the door frame body 101, so the guide plate 3 needs to be fixed to the shield body front partition and the door frame body 101 by bolts and pins to constrain the movement trajectory of the gate body 201 throughout the whole process.

[0110] The guide block 15 is connected to the gate body 201 by bolts; the guide column is connected to the guide column connecting section 205 on the gate body 201 by bolts; the guide block 15 and the guide bearing can be removed and replaced when they are worn. The guide blocks 15 and guide columns (including guide bearings) are arranged at the four corners of the gate body 201, and the guide blocks 15 and guide columns reciprocate along the guide plates 3 and the guide grooves 301 respectively. The guide blocks 15 hold the guide plates 3 on both sides tightly to prevent the gate body 201 from tilting. The guide columns constrain the gate body 201 to move along the guide grooves 301, avoid wear during movement, and improve stability.

[0111] Further, if Figure 1 , Figure 4 , Fig.19 , Fig. 20 As shown, the bottom locking part includes a bottom pin-pulling cylinder 9, a bottom gate plate fixing seat 10, a bottom pin-pulling cylinder fixing seat 11 and a bottom ear plate 203. The bottom pin-pulling cylinder fixing seat 11 is arranged on the front partition of the shield body and is located below the door frame body 101. The bottom pin-pulling cylinder 9 includes a bottom pin-pulling cylinder barrel and a bottom pin-pulling cylinder rod. The bottom pin-pulling cylinder barrel is connected to the bottom pin-pulling cylinder fixing seat 11, and the bottom pin-pulling cylinder rod is arranged against the top surface of the bottom gate plate fixing seat 10. When the gate cylinder 5 moves upward due to erroneous operation, the bottom pin-pulling cylinder rod is against the top surface of the bottom gate plate fixing seat 10, which can better play a supporting role; the bottom ear plate 203 is arranged at the bottom end of the gate plate body 201, and a bottom plug hole is arranged on the bottom ear plate 203, and the bottom pin-pulling cylinder rod can be inserted into the bottom plug hole; the bottom pin-pulling cylinder 9 is electrically connected to the control part.

[0112] Further, if Figure 1 , Figure 4 , Fig.17 , Fig.18As shown, the top locking part includes a top pin-pulling cylinder 6, a top gate plate fixing seat 7, a top pin-pulling cylinder fixing seat 8 and a top ear plate 202. The top pin-pulling cylinder fixing seat 8 is arranged on the front partition of the shield body and is located above the door frame body 101. The top pin-pulling cylinder 6 includes a top pin-pulling cylinder barrel and a top pin-pulling cylinder rod. The top pin-pulling cylinder barrel is connected to the top pin-pulling cylinder fixing seat 8, and the top pin-pulling cylinder rod is arranged against the bottom surface of the top gate plate fixing seat 7; when the gate cylinder 5 moves downward due to erroneous operation, the top pin-pulling cylinder rod is close to the bottom surface of the top gate plate fixing seat 7, which can better play a supporting role; the top ear plate 202 is arranged at the top of the gate plate body 201, and a top plug hole is arranged on the top ear plate 202, and the top pin-pulling cylinder rod can be inserted into the top plug hole; the top pin-pulling cylinder 6 is electrically connected to the control part.

[0113] When the gate is opened or closed, the cylinder rods of the top pin-pulling cylinder 6 and the bottom pin-pulling cylinder 9 extend out and insert into the top and bottom insertion holes to clamp the gate body 201 to prevent the gate body 201 from being opened or closed by mistake due to misoperation.

[0114] Further, the door frame assembly 1, the first hinge seat 4, the top gate plate fixing seat 7, the top pin-pulling cylinder fixing seat 8, the bottom gate plate fixing seat 10, and the bottom pin-pulling cylinder fixing seat 11 are welded and connected to the front partition of the shield body; the top pin-pulling cylinder 6 is fixed to the top pin-pulling cylinder fixing seat 8 by studs; the bottom pin-pulling cylinder 9 is fixed to the bottom pin-pulling cylinder fixing seat 11 by studs; the first end of the gate cylinder barrel of the gate cylinder 5 is hinged to the first hinge seat 4, and the second end of the gate cylinder rod is hinged to the second hinge seat 209 of the gate plate body 201. The left and right side guide plates 3 are fixed to the door frame body 101 by bolts.

[0115] Example 1

[0116] The intelligent shield sealing gate provided by the present invention has a control method for opening and closing as follows:

[0117] The guide groove 301 includes an isolation section, an asymptotic section, a vertical section and a sealing section; during the opening process of the gate assembly, the driving assembly lifts the gate body, and the guide column on the gate body rises in the sealing section of the guide groove, pressing the wedge surface structure upward away from the supporting wedge surface structure; the guide column enters the isolation section through the vertical section and the asymptotic section, and the gate body 201 moves away from the door frame assembly 1; the driving assembly continues to lift the gate body until the gate is opened;

[0118] During the opening process of the gate assembly, the driving assembly pushes the gate body to descend, and the guide column on the gate body descends in the isolation section of the guide groove, and the gate body 201 and the door frame body 101 maintain a lateral distance when descending; the guide column enters the sealing section through the asymptotic section and the vertical section, and the compression wedge surface structure moves downward and in the direction close to the door frame body 101 until the compression wedge surface structure compresses the supporting wedge surface structure; the gate body 201 is pressed against the sealing part, and the gate is closed.

[0119] Specifically, the gate is opened and closed by controlling the gate oil cylinder 5 to extend and retract. Specifically, the gate oil cylinder 5 is controlled to extend and retract to achieve the closing and opening of the gate.

[0120] Opening process: When the gate cylinder 5 retracts a wedge amount (the size of each section of the guide groove 301 is determined according to the size of the gate body 201, the sealing part and the door frame body 101, and the wedge amount is determined according to the size of each section of the guide groove 301), the wedge surfaces (the second top wedge surface, the second middle wedge surface and the second bottom wedge surface) arranged at the upper, middle and lower positions of the gate body 201 move upward and away from the door frame body 101, and the steamed bun-shaped sealing unit 13 recovers its deformation;

[0121] When the wedge surface of the gate body 201 leaves the wedge surface of the door frame body 101 (the first top wedge body 102, the first middle wedge body 103 and the first bottom wedge body 104), the gate body 201 has moved away from the door frame assembly 1, that is, at this time, a certain distance is pulled apart between the door frame assembly 1 and the gate assembly 2. At this time, the gate body 201 and the sealing part are in a non-contact state. Under the constraints of the left and right guide plates 3, the gate body 201 moves vertically upward until the gate is opened.

[0122] During the entire opening process, the gate body 201 contacts the sealing part only within a wedge-shaped stroke range, and the gate body 201 does not contact the sealing part within most of the remaining stroke range, thereby alleviating the wear of the sealing part.

[0123] Closing process: the gate cylinder rod of the gate cylinder 5 extends out, driving the gate body 201 to move downward. When the wedge-shaped surface of the gate body 201 is about to enter the wedge-shaped surface of the door frame body 101 by a certain distance, the wedge-shaped surfaces (the second top wedge body 2011, the second middle wedge body 2012 and the second bottom wedge body 2013) arranged at the upper, middle and lower positions of the gate body 201 move downward and towards the direction close to the door frame body 101, and the steamed bun-shaped sealing unit 13 begins to compress until the gate is completely closed.

[0124] The airbag sealing unit 12 has two states: inflated and normal pressure. When the gate is in the open state or the gate body 201 is in the lifting process, the airbag sealing unit 12 is in the normal pressure state, that is, the airbag sealing unit 12 is retracted into the sealing groove and does not contact the gate body 201; after the gate is closed, when it is necessary to test the pressure bearing performance of the steamed bun-shaped sealing unit 13, the airbag sealing unit 12 is inflated so that the airbag sealing unit 12 is in full contact with the gate body 201, and then the sealing groove 107 is inflated to maintain pressure to test the pressure bearing capacity of the sealing system; or when the steamed bun-shaped sealing unit 13 is damaged, the airbag sealing unit 12 is inflated, and then shield tail grease or polyurethane is injected through the sealing groove 107 to achieve the role of emergency sealing.

[0125] During the gate closing process, the distance detector 207 installed on the gate assembly 2 can detect the actual distance between the gate body 201 and the door frame body 101 in real time, and compare it with the theoretical design distance to determine the degree of wear of the guide column, and then replace the guide column in time.

[0126] Example 2

[0127] like Fig.21 , Fig. 22 , Fig.23 As shown, the closing process of the gate body 201 can be divided into four stages: the first stage: the gate body 201 and the door frame body 101 maintain a distance a ( Fig.21 ) moving stage; the second and third stages: the gate body 201 is close to the sealing section under the constraint of the guide groove 301, and the distance between the gate body 201 and the door frame body 101 is δ ( Fig. 22 ); The fourth stage: the gate body 201 compresses the sealing section under the constraint of the wedge surface.

[0128] The four stages correspond to the isolation section, the asymptotic section, the vertical section and the sealing section of the guide groove 301 .

[0129] like Fig.24 As shown, during the closing process of the gate body 201, the relationship curve between the distance between the gate body 201 and the door frame body 101 and the stroke of the gate cylinder 5 is as follows: the first stage (cylinder stroke 0-a): the gate body 201 and the door frame body 101 maintain the distance a and move downward, and the guide column is located in the isolation section of the guide groove 301; the second stage (cylinder stroke a-b): the gate body 201 approaches the sealing section under the constraint of the guide groove 301, and the guide column is located in the asymptotic section of the guide groove 301; the third stage (cylinder stroke b-c): the gate body 201 moves vertically downward under the constraint of the guide groove 301 until the wedge surface contacts the stage, and the guide column is located in the vertical section of the guide groove 301; the fourth stage (cylinder stroke c-d): the gate body 201 compresses the seal and closes the gate under the constraint of the wedge surface, and the guide column is located in the sealing section of the guide groove 301.

[0130] The purpose of dividing the entire closing state into four stages is: in the first stage, the gate body 201 and the door frame body 101 maintain a distance a and move relative to each other to avoid wear of the sealing part; in the second stage, the gate body 201 is close to the sealing part and the door frame body 101, preparing for the wedge surface of the gate body 201 to enter the wedge surface of the door frame body 101; the third stage: the gate body 201 moves vertically downward, preparing for the wedge surface of the gate body 201 to cooperate with the wedge surface of the door frame body 101; the fourth stage: the wedge surface constraint effect compresses the seal to achieve the purpose of closing the gate.

[0131] Fig.25 It is the relationship curve between the thrust of the gate cylinder 5 and the stroke of the gate cylinder during the gate closing process. The entire closing state is also divided into four stages: in the first stage, the gate body 201 and the door frame body 101 maintain a relative movement with a spacing a. Since the gate body 201 moves downward under the action of its own gravity at this time, the oil pressure in the small chamber is greater than the oil pressure in the large chamber, and the cylinder thrust presents a negative value; in the second stage, the gate body 201 is close to the sealing part and the door frame body 101, and the cylinder thrust changes from negative to positive, reaching the D stage; the third stage: the gate body 201 moves vertically downward, the sealing compression is constant, and the thrust is constant; the fourth stage: the gate body 201 compresses the seal again under the constraint of the wedge surface, and the thrust increases again. The cylinder stroke and the cylinder thrust maintain a one-to-one correspondence throughout the process.

[0132] like Fig.26 The figure shows the display interface of the gate cylinder control host computer, from which the stroke, oil pressure and force of all cylinders can be viewed in real time.

[0133] Example 3

[0134] The control logic relationship between the gate cylinder 5, the top pin-pulling cylinder 6 and the bottom pin-pulling cylinder 9 is as follows:

[0135] 1. Preparation action before gate closing: the top pin-pulling cylinder 6 and the bottom pin-pulling cylinder 9 are fully retracted, and the gate body 201 is in unlocked state;

[0136] 2. The gate cylinder rod of the gate oil cylinder 5 extends, the gate body 201 descends, and the gate is closed; after the gate is closed, the bottom pin-pulling cylinder rod of the bottom pin-pulling oil cylinder 9 extends out and is inserted into the bottom insertion hole of the bottom ear plate 203, clamping the gate body 201; the gate body 201 is in a locked state;

[0137] 3. Preparation before the gate is opened: the top pin-pulling cylinder 6 and the bottom pin-pulling cylinder 9 are fully retracted, and the gate body 201 is in an unlocked state;

[0138] 4. The gate cylinder rod of the gate oil cylinder 5 retracts, the gate body 201 rises, and the gate is opened; after the gate is opened, the top pin-pulling cylinder rod of the top pin-pulling oil cylinder 6 extends out and is inserted into the top insertion hole of the top ear plate 202, clamping the gate body 201; the gate body 201 is in a locked state

[0139] As described above, the intelligent shield sealing gate and control method thereof of the present invention have the following beneficial effects:

[0140] The present invention solves the problems of serious gate seal wear and difficulty in detecting slurry leakage in the prior art, and provides an intelligent shield sealing gate with high pressure bearing capacity, which can reduce seal wear and detect slurry leakage in real time.

[0141] In the present invention, when the gate body descends and blocks the door frame body, the compression wedge surface structure is compressed and sealed on the supporting wedge surface structure, and the compression and sealing of the gate body and the door frame body are realized through the matching wedge surface structure, so as to realize the function of sealing the external mud pressure; the driving assembly can provide a downward compression force for the gate body, and the sealing and leakage detection structure are compressed more and more tightly to ensure the pressure bearing capacity; during the lifting and lowering operation of the gate body, the guide column is located in the isolation section of the guide groove, and the gate body is away from the door frame body, so as to ensure that the gate body and the supporting wedge surface structure on the door frame body are not in contact within most of the travel range, thereby reducing the wear of the seal; the guide groove on the guide plate is opened along the set trajectory, so as to ensure the lifting stability of the gate body and the precise control of the movement trajectory; the sealing and leakage detection structure ensures the sealing between the door frame body and the gate body, and can realize the pressure bearing capacity test and leakage detection, so as to further ensure the sealing of the gate; the operation of the gate body is controlled as a whole by the control unit, and the reliable operation of the gate is realized through intelligent detection control, so as to ensure the intelligence level of the present invention.

[0142] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A sealing gate for intelligent shield, arranged on the front partition of the shield, characterized in that: include: A door frame assembly (1) comprises a door frame body (101), wherein a supporting wedge-shaped surface structure is arranged on the door frame body (101); The gate assembly (2) comprises a gate body (201), on which a pressing wedge surface structure is arranged; and a driving assembly for driving the gate body (201) to be raised and lowered is connected. A guide structure, comprising a guide plate (3) and a guide column respectively arranged on the door frame body (101) or the gate body (201), wherein the guide plate (3) is provided with a guide groove (301) for sleeve-mounting the guide column, and the guide groove (301) comprises an isolation section and a sealing section; A sealing and slurry leakage detection structure is arranged on the door frame body (101) and is used for sealing, pressure bearing capacity testing and slurry leakage detection between the door frame body (101) and the gate body (201); the sealing and slurry leakage detection structure comprises a sealing portion, when the guide column is located in the isolation section, the pressing wedge surface structure and the supporting wedge surface structure are spaced apart from each other, and the gate body (201) and the sealing portion are spaced apart; when the guide column is located in the sealing section, the pressing wedge surface structure is pressed and sealed on the supporting wedge surface structure so that the gate body (201) is pressed and fitted against the sealing portion; The control unit is electrically connected to the driving assembly and the gate assembly (2).

2. The sealing gate for intelligent shield according to claim 1 is characterized in that: A bottom locking portion is provided at the bottom of the door frame body (101); when the gate body (201) is closed and sealed at the door frame body (101), the bottom locking portion locks the gate body (201) from the bottom; the bottom locking portion is electrically connected to the control unit.

3. The sealing gate for intelligent shield according to claim 1, characterized in that: A top locking portion is provided above the door frame body (101), and when the gate body (201) rises and leaves the door frame body (101), the top locking portion locks the gate body (201) from the top; the top locking portion is electrically connected to the control portion.

4. The sealing gate for intelligent shield according to claim 1, characterized in that: The supporting wedge surface structure comprises a first top wedge surface (102), a first middle wedge surface (103) and a first bottom wedge surface (104); the pressing wedge surface structure comprises a second top wedge surface (2011), a second middle wedge surface (2012) and a second bottom wedge surface (2013); the second top wedge surface (2011), the second middle wedge surface (2012) and the second bottom wedge surface (2013) can be sealed and clamped on the first top wedge surface (102), the first middle wedge surface (103) and the first bottom wedge surface (104) respectively.

5. The sealing gate for intelligent shield according to claim 4, characterized in that: The guide groove (301) further comprises an asymptotic section and a vertical section connecting the isolation section and the sealing section; when the guide column is located in the asymptotic section, the gate body (201) approaches the door frame body (101) under the restraining action of the guide groove (301); when the guide column is located in the vertical section, the gate body (201) moves vertically downwards under the restraining action of the guide groove (301) until the pressing wedge surface structure contacts the supporting wedge surface structure; the guide column enters the sealing section from the vertical section, and the second top wedge body, the second middle wedge body and the second bottom wedge body can be sealed and clamped on the first top wedge body (102), the first middle wedge body (103) and the first bottom wedge body (104) respectively.

6. The sealing gate for intelligent shield according to claim 1, characterized in that: The sealing portion comprises an airbag sealing unit (12) and a steamed bun-shaped sealing unit (13); an airbag sealing groove (105) and a steamed bun-shaped sealing groove (106) are arranged at intervals on the door frame body (101); the airbag sealing unit (12) is embedded in the airbag sealing groove (105), and the steamed bun-shaped sealing unit (13) is embedded in the steamed bun-shaped sealing groove (106); a sealing groove (107) is arranged between the airbag sealing groove (105) and the steamed bun-shaped sealing unit groove (106); the sealing groove (107) is used for inflating and maintaining pressure to detect sealing or for injecting grease to seal leakage; a plurality of grease interfaces (108) which are in communication with the sealing groove (107) are arranged at intervals along the circumferential direction on the door frame body (101).

7. The sealing gate for intelligent shield according to claim 1, characterized in that: Two guide grooves (301) are arranged in parallel and at intervals on the guide plate (3), and the two guide grooves (301) are arranged at intervals in the longitudinal direction and the transverse direction; two guide columns are arranged at intervals on the side of the gate body (201), and the two guide columns can be slidably sleeved in the two guide grooves (301) respectively.

8. The sealing gate for intelligent shield according to claim 1, characterized in that: The driving assembly comprises two gate cylinders (5) arranged in a vertical direction and parallel to each other, each gate cylinder (5) is electrically connected to the control unit, and each gate cylinder (5) feeds back real-time thrust to the control unit; each gate cylinder (5) comprises a gate cylinder barrel and a gate cylinder rod, a first hinge seat (4) is arranged on the front partition of the shield body above the door frame body (101), a second hinge seat (209) is arranged at the bottom end of the gate plate body (201), a first end of the gate cylinder barrel is hinged to the first hinge seat (4), a first end of the gate cylinder rod is sealed and passed through the second end of the gate cylinder barrel, and the second end of the gate cylinder rod is hinged to the second hinge seat (209).

9. The sealing gate for intelligent shield according to claim 1, characterized in that: At least one side of the gate body (201) is connected to a distance detector (207), and the distance detector (207) is used to detect the distance between the adjacent surfaces of the gate body (201) and the door frame body (101) in real time; the distance detector (207) is electrically connected to the control unit.

10. The sealing gate for intelligent shield according to claim 1, characterized in that: The guide structure also includes a guide block (15) arranged on the side of the gate body (201), and the guide block (15) can slide along the guide plate (3); a guide bearing (16) is arranged at the end of the guide column, and the guide bearing (16) is slidably sleeved in the guide groove (301).

11. The sealing gate for intelligent shield according to claim 2, characterized in that: The bottom locking part comprises a bottom pin-pulling cylinder (9), a bottom gate plate fixing seat (10), a bottom pin-pulling cylinder fixing seat (11) and a bottom ear plate (203); the bottom pin-pulling cylinder fixing seat (11) is arranged on the front partition plate of the shield body and is located below the door frame body (101); the bottom pin-pulling cylinder (9) comprises a bottom pin-pulling cylinder barrel and a bottom pin-pulling cylinder rod; the bottom pin-pulling cylinder barrel is connected to the bottom pin-pulling cylinder fixing seat (11); the bottom pin-pulling cylinder rod is arranged against the top surface of the bottom gate plate fixing seat (10); the bottom ear plate (203) is arranged at the bottom end of the gate plate body (201); a bottom plug hole is arranged on the bottom ear plate (203); the bottom pin-pulling cylinder rod can be inserted into the bottom plug hole; the bottom pin-pulling cylinder (9) is electrically connected to the control part.

12. The sealing gate for intelligent shield according to claim 3, characterized in that: The top locking part comprises a top pin-pulling cylinder (6), a top gate plate fixing seat (7), a top pin-pulling cylinder fixing seat (8) and a top ear plate (202); the top pin-pulling cylinder fixing seat (8) is arranged on the front partition plate of the shield body and is located above the door frame body (101); the top pin-pulling cylinder (6) comprises a top pin-pulling cylinder barrel and a top pin-pulling cylinder rod; the top pin-pulling cylinder barrel is connected to the top pin-pulling cylinder fixing seat (8); the top pin-pulling cylinder rod is arranged against the bottom surface of the top gate plate fixing seat (7); the top ear plate (202) is arranged at the top end of the gate plate body (201); a top plug hole is arranged on the top ear plate (202); the top pin-pulling cylinder rod can be inserted into the top plug hole; the top pin-pulling cylinder (6) is electrically connected to the control part.

13. A method for controlling a sealing gate for an intelligent shield according to any one of claims 1 to 12, characterized in that: include: The guide groove (301) comprises an isolation section, an asymptotic section, a vertical section and a sealing section; During the opening process of the gate assembly (2), the drive assembly lifts the gate body (201), the guide column on the gate body (201) rises in the sealing section of the guide groove (301), and the pressing wedge surface structure moves upward away from the supporting wedge surface structure; the guide column enters the isolation section through the vertical section and the asymptotic section, and the gate body (201) moves away from the door frame assembly (1); the drive assembly continues to lift the gate body (201) until the gate is opened; During the opening process of the gate assembly (2), the driving assembly pushes the gate body (201) to descend, and the guide column on the gate body (201) descends in the isolation section of the guide groove (301), and the gate body (201) and the door frame body (101) maintain a lateral spacing and descend; the guide column enters the sealing section through the asymptotic section and the vertical section, and the pressing wedge surface structure moves downward and in a direction close to the door frame body (101) until the pressing wedge surface structure presses the supporting wedge surface structure; the gate body (201) is pressed and fits the sealing portion, and the gate is closed.

Images