Anti-rebound device and gate

Abstract

The invention provides an anti-rebound device and a gate, relates to the technical field of nuclear power equipment, and aims to solve the technical problem that a gate body of the gate rebounds to cause interruption of operation of a transmission mechanism of the gate. The invention provides an anti-springback device which comprises a position adjusting shaft bolt and a locking sleeve which are matched with each other, the locking sleeve is used for being installed on a supporting seat of a cabin panel, and the position adjusting shaft bolt is used for being installed on a door body; the springback prevention device comprises a spring bolt which is rotationally connected with the supporting base. The spring bolt limits movement of the position adjusting shaft bolt, and the supporting seat abuts against the spring bolt so as to limit the spring bolt to rotate and be separated from the position adjusting shaft bolt. And when the anti-springback device is in the second state, the spring bolt rotates to be separated from the position adjusting shaft bolt, and the position adjusting shaft bolt can move relative to the locking sleeve.

Description

Technical Field

[0001] This application relates to the technical field of nuclear power equipment, and more particularly to an anti-rebound device and a gate. Background Technology

[0002] In pressurized water reactor nuclear power plants, the containment structure isolates the reactor from the external environment, preventing radioactive materials from spreading to the outside world through air, water, or other means. During reactor shutdown for refueling or operation, personnel or small equipment must enter the containment through gates to perform operational or maintenance tasks. The gates in nuclear power plants are typically quite heavy (weighing over 2 tons), and upon contact with the containment panels, they may rebound due to inertial impact. The impact force at the moment of contact is significant, easily causing the gate to rebound and disrupting the gate's operating mechanism. Summary of the Invention

[0003] In view of the above problems, this application provides an anti-rebound device and a gate, which can solve the technical problem that the gate's transmission mechanism will be interrupted due to the gate body rebounding.

[0004] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0005] In a first aspect, embodiments of this application provide an anti-rebound device, which includes a cooperating adjusting bolt and a locking sleeve. The locking sleeve is used to be installed on a support seat of the cabin panel, and the adjusting bolt is used to be installed on the door body.

[0006] The anti-rebound device includes a locking tongue, which is rotatably connected to a support seat; the locking tongue restricts the movement of the adjusting pin, and the support seat abuts against the locking tongue to prevent the locking tongue from rotating out of the adjusting pin;

[0007] When the anti-rebound device is in the second state, the locking tongue rotates and disengages from the adjusting pin, allowing the adjusting pin to move relative to the locking sleeve.

[0008] In some embodiments of this application, the locking tongue includes a limiting part and a locking tongue part, the limiting part and the locking tongue part are coaxial and fixedly connected, and the locking tongue part is matched with the radial groove;

[0009] When the adjusting bolt is located inside the locking sleeve, the limiting part can abut against the support seat to restrict the rotation of the locking tongue, and the locking tongue abuts against the radial groove of the adjusting bolt through the connecting hole.

[0010] In some embodiments of this application, the anti-rebound device includes a release component connected to a support base, and at least a portion of the release component contacts a limiting portion.

[0011] The disengagement component's action drives the limiting part to rotate, causing the locking tongue to disengage from the radial groove.

[0012] In some embodiments of this application, the disengagement assembly includes a pressure rod, the middle portion of which is hinged to a support base, and the first end of the pressure rod abutting against the side wall of the limiting portion near the adjusting pin.

[0013] When the pressure rod rotates, the first end of the pressure rod can drive the limiting part to rotate.

[0014] In some embodiments of this application, the anti-rebound device includes a rotary table and a pressing assembly, wherein the pressing assembly is mounted on the rotary table;

[0015] The pressing assembly includes a flipping pressure plate, which overlaps with the pressing part in the direction of movement of the second end of the pressure rod;

[0016] The rotation direction of the flipping pressure plate is perpendicular to the direction of movement of the second end of the pressure rod, and the flipping pressure plate presses down on the pressing part.

[0017] In some embodiments of this application, the pressing component includes a tilting stop and a support rod. The support rod is vertically mounted on the rotary table, and the tilting stop is rotatably connected to the support rod. The rotation axis of the tilting stop is parallel to the surface of the rotary table.

[0018] The turntable rotates in the opening direction, and the flipping pressure plate contacts the pressing part, causing the flipping stop to abut against the turntable. The flipping pressure plate then presses down on the pressing part.

[0019] The rotary table rotates in the closing direction, and the flipping pressure plate comes into contact with the pressing part, causing the flipping stop to disengage from the rotary table.

[0020] In some embodiments of this application, the overturning stop includes a rotating part, a connecting part, and a stopping part, which are connected in sequence.

[0021] The first end of the rotating part is connected to the flipping pressure plate, the second end of the rotating part is rotatably connected to the support rod, and the rotating shaft of the rotating part is parallel to the surface of the rotary table;

[0022] The connecting part extends from the rotating part perpendicular to the axis of rotation of the rotating part, and the stop part extends perpendicularly to the rotating part and has an angle with the connecting part;

[0023] The distance from the rotating shaft of the rotating part to the second end of the stop part is greater than the distance from the rotating shaft of the rotating part to the surface of the rotary table.

[0024] In some embodiments of this application, the latch is configured as a cam, the limiting part is configured as a limiting rod, and one end of the limiting rod is coaxially configured with the cam.

[0025] In some embodiments of this application, the anti-rebound device includes an elastic element, one end of which is fixedly connected to a limiting portion, and the other end of which is fixedly connected to a support base.

[0026] In some embodiments of this application, the radial groove is set as an arc along the radial direction of the adjusting pin, and the arc is set to match the cam peak profile of the cam.

[0027] Secondly, this application provides a gate, comprising:

[0028] The door body is used to connect to the cabin panel;

[0029] The transmission mechanism is used to open and close the door bolts on the cabin panel;

[0030] The anti-rebound device has its rotary table coaxially arranged with the output shaft of the transmission mechanism.

[0031] This application provides an anti-rebound device, in which a locking tongue is embedded in a radial groove, and the locking tongue contacts the radial groove of the adjusting bolt through a connecting hole. When the anti-rebound device is in its first state, the gate will rebound after a collision during closing. The locking tongue restricts the movement of the adjusting bolt, thus preventing it from moving. The locking tongue also abuts against the support seat, preventing it from rotating under impact force. By restricting the rotation of the locking tongue and preventing the adjusting bolt from moving, the instantaneous rebound of the gate during closing is suppressed, thereby preventing interruption of the gate's transmission mechanism and bolt locking failure, ensuring the sealing and structural integrity of the containment.

[0032] When the anti-rebound device is in the second state, the latch rotates and disengages from the adjusting bolt, allowing the adjusting bolt to move relative to the locking sleeve, thus enabling the adjusting bolt to move normally without affecting the opening of the door and meeting the usage requirements.

[0033] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by these technical solutions as described above, other technical problems that this application can solve, other technical features contained in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the anti-rebound device provided in the embodiments of this application;

[0036] Figure 2 A schematic diagram of the locking tongue rotation of the anti-rebound device provided in the embodiments of this application;

[0037] Figure 3 This is a schematic diagram of the disengagement component and the pressing component in the anti-rebound device provided in the embodiments of this application;

[0038] Figure 4 A top view of the release component and the pressing component in the anti-rebound device provided in the embodiments of this application;

[0039] Figure 5 This is a top view of the pressing component provided in an embodiment of this application;

[0040] Figure 6 This is a schematic diagram of the structure of the tilting stop and the rotary table abutting in an embodiment of this application.

[0041] Figure label:

[0042] 100-Gate Body;

[0043] 110 - Base;

[0044] 120 - Installation components;

[0045] 210 - Support base;

[0046] 300 - Transmission mechanism;

[0047] 400 - Anti-rebound device;

[0048] 410 - Locking sleeve; 411 - Connecting hole;

[0049] 420 - Adjustment pin; 421 - Radial groove; 422 - Extension;

[0050] 430 - Locking tongue; 431 - Limiting part; 432 - Locking tongue part;

[0051] 440 - Disengagement assembly; 441 - Pressure bar; 442 - Press-fit part; 4411 - First end of pressure bar; 4412 - Second end of pressure bar;

[0052] 450 - Pressing assembly; 451 - Flipping pressure plate; 452 - Flipping stop; 453 - Support rod; 454 - Adapter; 4521 - Rotating part; 4522 - Connecting part; 4523 - Stopping part;

[0053] 460-turntable;

[0054] 470 - Elastic component. Detailed Implementation

[0055] The gates in nuclear power plants are typically heavy, and upon contact with the containment panels, they may rebound due to inertial impact. If this rebound is not suppressed, the gate's transmission mechanism may fail to operate, the bolts may malfunction, and ultimately, the containment's sealing and structural integrity may be compromised. In related technologies, gate anti-rebound devices can use springs or hydraulic dampers to absorb the impact energy when the gate closes.

[0056] However, the impact force at the moment of contact between the door and the cabin panel is very large, and the spring or hydraulic buffer cannot completely absorb the impact energy, causing the door to rebound.

[0057] To address the aforementioned problems, this application provides an anti-rebound device. The locking tongue is embedded in a radial groove, and the locking tongue contacts the radial groove of the adjusting bolt through a connecting hole. When the anti-rebound device is in its first state, the gate will rebound after a collision during closing. The locking tongue restricts the movement of the adjusting bolt, preventing it from moving. The locking tongue also abuts against the support seat, preventing it from rotating under impact force. By restricting the rotation of the locking tongue and preventing the adjusting bolt from moving, the instantaneous rebound of the gate during closing is suppressed, thereby preventing interruption of the gate's transmission mechanism and bolt locking failure, ensuring the sealing and structural integrity of the containment structure.

[0058] When the anti-rebound device is in the second state, the latch rotates and disengages from the adjusting bolt, allowing the adjusting bolt to move relative to the locking sleeve, thus enabling the adjusting bolt to move normally without affecting the opening of the door and meeting the usage requirements.

[0059] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0060] This application provides a gate that can achieve isolation and protection, ensuring the sealing performance and structural integrity of the containment.

[0061] Reference Figure 1 As shown, the gate includes a gate body 100 and a hatch panel. The gate body 100 and the hatch panel form a sealed cavity. The gate body 100 and the hatch panel can withstand the pressure difference between the inside and outside of the containment, ensuring the containment's sealing performance and structural integrity.

[0062] The gate includes a bolt and a transmission mechanism 300. The bolt is engaged and disengaged by the transmission mechanism 300 to ensure the stability of the gate body 100 seal.

[0063] The transmission mechanism 300 can be mounted on the cabin panel to ensure its stability.

[0064] In some possible implementations, the transmission mechanism 300 includes a handwheel, a worm gear, a worm wheel, and an output shaft. The handwheel's axis of rotation is perpendicular to the cabin panel to facilitate operator rotation. The handwheel and worm gear are coaxially arranged, and the worm gear meshes with the worm wheel. The output shaft of the worm wheel can be arranged along the height direction to facilitate the installation of an output gear or other components along the height direction, reducing the horizontal space occupied by the transmission structure and facilitating the passage of operators and equipment.

[0065] The gate includes an anti-rebound device 400, which prevents the gate body 100 from rebounding, thereby ensuring that the transmission mechanism 300 operates continuously so that the bolt can be engaged, thus avoiding affecting the reliability of the gate.

[0066] Furthermore, the anti-rebound device 400 includes a cooperating adjusting bolt 420 and a locking sleeve 410. When the door 100 is closed, the adjusting bolt 420 is inserted into the locking sleeve 410 along the axial direction of the locking sleeve 410, so as to prevent the door 100 from rebounding by restricting the movement of the adjusting bolt 420.

[0067] For example, the adjusting bolt 420 can be mounted on the base 110 and then on the door body 100 via the base 110, so as to adjust the position of the adjusting bolt 420 and make it engage with the locking sleeve 410. The locking sleeve 410 can be installed on the support seat 210 of the cabin panel by welding, so that the locking sleeve 410 is firmly and reliably fixed.

[0068] For example, the adjusting bolt 420 can be installed on the hatch panel, and the locking sleeve 410 can be installed on the door body 100. In this way, the positions of the adjusting bolt 420 and the locking sleeve 410 can be adjusted according to the actual situation or space to improve the applicability of the anti-rebound device 400.

[0069] The adjusting bolt 420 is provided with a radial groove 421. By contacting the groove wall surface of the radial groove 421, the position of the adjusting bolt 420 can be restricted, thereby preventing the adjusting bolt 420 from moving in the opposite direction (i.e., the door 100 springs back).

[0070] The anti-rebound device 400 includes a locking tongue 430, which is the locking component of the anti-rebound device 400. The locking tongue 430 is rotatably connected to the support base 210 to accommodate the movement of the adjusting pin 420 inserted into the locking sleeve 410.

[0071] When the anti-rebound device 400 is in its first state, the gate 100 will rebound after a collision upon closing. The locking tongue 430 can restrict the movement of the adjusting bolt 420, thus preventing the adjusting bolt 420 from moving. By abutting against the support seat 210, the locking tongue 430 can avoid being rotated by impact force. In this way, by restricting the rotation of the locking tongue 430, the adjusting bolt 420 cannot move, thereby suppressing the rebound of the gate 100 at the moment of closing, thus preventing the interruption of the operation of the gate's transmission mechanism 300 and the failure of the bolt locking, ensuring the sealing and structural integrity of the containment. When the anti-rebound device 400 is in its second state, the locking tongue 430 rotates and disengages from the adjusting bolt 420, allowing the adjusting bolt 420 to move relative to the locking sleeve 410, thus enabling the adjusting bolt 420 to move normally without affecting the opening of the gate 100, thereby meeting the usage requirements.

[0072] The rotation axis of the latch 430 is perpendicular to the radial direction of the adjusting bolt 420. It can be understood that the rotation direction of the latch 430 is perpendicular to the axial displacement direction of the adjusting bolt 420. When the door 100 is closed, the latch 430 can rotate to avoid obstructing the insertion of the adjusting bolt 420 into the locking sleeve 410.

[0073] The locking tongue 430 includes a limiting part 431 and a locking tongue part 432, which are coaxial and fixedly connected. Rotation of the locking tongue part 432 can drive the limiting part 431 to rotate, and rotation of the limiting part 431 can also drive the locking tongue part 432 to rotate.

[0074] The locking sleeve 410 is provided with a connecting hole 411 that matches the radial groove 421. The connecting hole 411 is positioned opposite to the radial groove 421. The connecting hole 411 provides rotation space for the locking tongue 432 so that the locking tongue 430 abuts against the radial groove 421.

[0075] Reference Figure 1 and Figure 2 As shown, as the adjusting pin 420 enters the locking sleeve 410, the adjusting pin 420 first contacts the locking tongue 432. With the movement of the adjusting pin 420, the locking tongue 432 rotates clockwise until the radial groove 421 of the adjusting pin 420 moves below the locking tongue 432. Under the influence of gravity, the locking tongue 432 rotates in the opposite direction, causing it to embed into the radial groove 421.

[0076] When the adjusting bolt 420 is located inside the locking sleeve 410, the limiting part 431 can abut against the support seat 210 to restrict the rotation of the locking tongue 430, and the locking tongue part 432 abuts against the radial groove 421 of the adjusting bolt 420 through the connecting hole 411. That is, the locking tongue part 432 is embedded in the radial groove 421 of the adjusting bolt 420 through the connecting hole 411, and the locking tongue part 432 abuts against the radial groove 421.

[0077] Understandably, due to the inertia of the door body 100, it continues to move along the original insertion direction until it contacts the hatch panel. After contacting the hatch panel, the door body 100 is subjected to a force from the hatch panel opposite to the insertion direction. The locking tongue 432 is matched with the radial groove 421, so that the radial groove 421 abuts against the locking tongue 432. The adjusting bolt 420 applies a force in the opposite direction of the insertion direction to the locking tongue 432, and the locking tongue 432 tends to rotate counterclockwise, while the limiting part 431 abuts against the support seat 210 to limit the rotation of the locking tongue 430. The locking tongue 432 and the radial groove 421 can form a rigid locking state, thereby preventing the door body 100 from rebounding, and thus preventing the interruption of the operation of the gate's transmission mechanism 300 and the failure of the bolt locking, ensuring the sealing and structural integrity of the containment.

[0078] Furthermore, the outer contour of the latch 432 is fitted to the groove wall of the radial groove 421 to ensure the contact area between the latch 432 and the radial groove 421 and prevent stress concentration. This allows the latch 432 and the radial groove 421 to fit tightly, reducing the likelihood of damage to the latch 432.

[0079] In some possible implementations, the limiting part 431 can be configured as a limiting block, which can ensure the reliability of the limiting part 431 abutting against the support base 210 and prevent the limiting block from breaking due to insufficient strength. The locking tongue part 432 is configured as a sector wheel, which forms a rigid locking state with the radial groove 421.

[0080] In addition, the fan-shaped arc of the fan-shaped wheel is matched with the radial groove 421 to ensure that the fan-shaped wheel and the radial groove 421 can fit tightly, increase the contact area between the fan-shaped wheel and the radial groove 421, prevent stress concentration, and reduce the possibility of damage to the fan-shaped wheel.

[0081] In some possible implementations, the limiting part 431 can be configured as a limiting rod with a relatively long length, and one end of the limiting rod is coaxially arranged with the cam to prevent the limiting rod from slipping when the limiting part 431 abuts against the support seat 210. The locking tongue 430 is configured as a cam. The limiting block is coaxially arranged with the cam. The involute of the cam peak profile of the cam is configured to cooperate with the radial groove 421 to ensure that the cam peak profile and the radial groove 421 can fit tightly, increase the contact area between the cam peak profile and the radial groove 421, prevent stress concentration, and reduce the possibility of cam damage.

[0082] Furthermore, the groove wall of the radial groove 421 is set as an arc. The involute of the cam peak profile is also set as an arc to fit the groove wall of the radial groove 421. This facilitates the machining of the adjusting pin 420 and the cam, improving machining efficiency. In addition, this allows the cam to slide more smoothly along the groove wall of the radial groove 421 without obvious jamming points, reducing cam movement resistance caused by abrupt changes in the profile and preventing the anti-rebound device 400 from failing or the door 100 from opening and closing malfunctions caused by jamming.

[0083] The limiting part 431 and the locking tongue part 432 can be manufactured using an integral molding process, which improves the manufacturing efficiency of the locking tongue 430.

[0084] In some possible implementations, the anti-rebound device 400 includes an elastic element 470. One end of the elastic element 470 is connected to the limiting portion 431. For example, the limiting portion 431 is provided with an opening, and one end of the elastic element 470 passes through the opening, thereby connecting one end of the elastic element 470 to the limiting portion 431.

[0085] The other end of the elastic element 470 is connected to the support base 210. For example, the support base 210 is provided with an opening, and the other end of the elastic element 470 passes through the opening, so that the other end of the elastic element 470 is connected to the support base 210.

[0086] When the adjusting bolt 420 moves, causing the locking tongue 432 to rotate, the locking tongue 432 drives the limiting part 431 to rotate. One end of the elastic element 470 is connected to the limiting part 431 and is in a stretched state under the action of the limiting part 431, thereby generating an elastic force that acts on the limiting part 431. When the external force is removed from the locking tongue 432, the elastic force generated by the elastic element 470 can cause the limiting part 431 to rotate in the opposite direction, causing the limiting part 431 to reset, preventing the locking tongue 430 from rotating to a dead zone, thereby preventing the locking tongue 430 from being unable to rotate back, and ensuring that the locking tongue 432 can be embedded in the radial groove 421. This avoids the locking tongue 432 and the radial groove 421 failing to form a rigid locking state, thereby improving the reliability of the anti-rebound device 400.

[0087] For example, the elastic element 470 can be set as a tension spring. Tension springs have a simple structure and are commonly used, making them easy to replace.

[0088] For example, the elastic element 470 can be set as an elastic rubber strip. The elastic rubber strip has good elastic deformation ability and vibration damping performance, which can absorb the vibration generated by the impact of the door body 100, avoid the elastic element 470 from vibrating violently, and reduce noise.

[0089] Reference Figure 3 and Figure 4As shown, the anti-rebound device 400 includes a disengagement component 440, which is used to drive the latch 430 to disengage from the radial groove 421, breaking the locking state between the latch 432 and the radial groove 421, thereby realizing the unlocking function of the anti-rebound device 400 and facilitating the opening of the door 100.

[0090] Furthermore, the disengagement component 440 is connected to the support base 210, and at least a portion of the disengagement component 440 contacts the limiting part 431. The action of the disengagement component 440 drives the limiting part 431 to rotate, causing the latch 432 to disengage from the radial groove 421. Through the contact between the disengagement component 440 and the support base 210, the action of the disengagement component 440 transmits force to the limiting part 431, causing the limiting part 431 to rotate and drive the latch 432 to rotate, thereby unlocking the anti-rebound device 400. This allows the adjusting bolt 420 to disengage from the locking sleeve 410 along with the door body 100, thus enabling the door body 100 to open.

[0091] For example, the disengagement component 440 can be configured as an electric push rod, the cylinder of which is fixed to the support base 210 by bolts, and the buffer block at the free end of the push rod contacts the limiting part 431. The electric push rod drives the push rod to extend in a direction away from the radial groove 421, and the free end of the push rod drives the limiting part 431 to rotate. The limiting part 431 drives the locking tongue part 432 to rotate, thereby unlocking the anti-rebound device 400, allowing the adjusting pin 420 to disengage from the locking sleeve 410 along with the door body 100, thus enabling the door body 100 to open.

[0092] The release assembly 440 includes a pressure rod 441, which can drive the limiting part 431 to rotate, thereby unlocking the anti-rebound device 400.

[0093] The middle part of the pressure rod 441 is hinged to the support base 210, and the pressure rod 441 can rotate about the hinge axis. The first end 4411 of the pressure rod abuts against the side wall of the limiting part 431 near the adjusting pin 420, and the first end 4411 of the pressure rod can apply a force to the limiting part 431 to make the limiting part 431 rotate. When the pressure rod 441 rotates about its hinge axis, the first end 4411 of the pressure rod drives the limiting part 431 to rotate, thereby unlocking the anti-rebound device 400. The unlocking process of the anti-rebound device 400 is achieved through rigid transmission to ensure stable transmission of driving force.

[0094] In addition, if a driving element is provided at the second end 4412 of the pressure rod 441, the pressure rod 441 can reduce the driving force at the second end 4412 of the pressure rod 441 through the lever principle, thereby reducing the difficulty of unlocking.

[0095] In some possible implementations, the hinge shaft of the pressure rod 441 can be connected to the output shaft of the motor, and the rotation of the motor's output shaft can drive the pressure rod 441 to rotate around its hinge shaft.

[0096] For example, the limiting part 431 is provided with a groove, and the first end 4411 of the pressure rod abuts against the groove wall of the limiting part 431. The first end 4411 of the pressure rod moves up and down and slides in the groove, thereby tilting the limiting part 431 to rotate and unlocking the anti-rebound device 400. The up and down movement of the first end 4411 of the pressure rod 441 is carried out on the groove track, which can make the pressure rod 441 reliably contact the limiting part 431, prevent the pressure rod 441 from falling out of the limiting part 431, and ensure the reliability of the anti-rebound device 400.

[0097] Alternatively, the limiting part 431 is connected to one end of the elastic member 470, and the other end of the elastic member 470 is connected to the support base 210. The pressure rod 441 is positioned below the limiting part 431. The first end 4411 of the pressure rod moves upwards, causing the limiting part 431 to rotate. If the second end 4412 of the pressure rod has no driving force, the limiting part 431 is subjected to the elastic force of the elastic member 470, causing the limiting part 431 to rotate to its original position, thus moving the first end 4411 of the pressure rod to its original position. After the driving force of the pressure rod 441's rotation disappears, the elastic force of the elastic member 470 can be converted into a restoring force for the limiting part 431, causing the limiting part 431 and the pressure rod 441 to automatically return to their initial positions, achieving automatic reset without the need for other driving components, thus simplifying the structure of the anti-rebound device 400.

[0098] In some possible implementations, the second end 4412 of the pressure rod is configured as a pressing part 442, which employs a rotary wheel. The rotary wheel is rotatably connected to the pressure rod 441. Rolling friction exists between the rotary wheel and the tilting pressure plate 451, which can reduce wear on the rotary wheel and prevent jamming between the rotary wheel and the tilting pressure plate 451.

[0099] Continue to refer to Figure 3 and Figure 4 As shown, the anti-rebound device 400 includes a rotary table 460 and a pressing component 450, with the pressing component 450 mounted on the rotary table 460. The rotary table 460 serves as the carrier for the pressing component 450, ensuring its stability during use.

[0100] For example, the rotary table 460 can be a disc, which has good stability during rotation. The rotary table 460 can also be a sector-shaped disc, which can reduce the material used in the rotary table 460, reduce the weight of the anti-rebound device 400, and save on the manufacturing cost of the anti-rebound device 400.

[0101] Furthermore, the pressing assembly 450 includes a flipping pressure plate 451, which overlaps with the pressing part 442 in the direction of movement of the second end 4412 of the pressure rod. It is understood that the flipping pressure plate 451 can contact the pressing part 442, thereby controlling the movement of the pressing part 442 through the flipping pressure plate 451.

[0102] For example, the flip plate 451 can be made of metal to ensure the reliability of the flip plate 451 during use.

[0103] The flipping pressure plate 451 rotates with the rotary table 460. The rotation direction of the flipping pressure plate 451 is perpendicular to the movement direction of the second end 4412 of the pressure rod, and the flipping pressure plate 451 presses down on the pressing part 442. The rotary table 460 rotates in a plane perpendicular to the movement of the second end 4412 of the pressure rod 441, so that the movement trajectory of the flipping pressure plate 451 is perpendicular to the movement direction of the second end 4412 of the pressure rod 441, which facilitates the conversion of rotational motion into pressure towards the pressure rod 441. When the flipping pressure plate 451 rotates with the rotary table 460, its overlapping part contacts the pressing part 442 and applies downward pressure. This downward pressure drives the second end 4412 of the pressure rod 441 to move, thereby causing the pressure rod 441 to rotate around the hinge axis, and the first end 4411 of the pressure rod moves. The first end 4411 of the pressure rod abuts against the limiting part 431, realizing that the locking tongue 430 disengages from the radial groove 421.

[0104] Understandably, with this setup, the entire process is controlled by the mechanical structure to control the direction of movement and the transmission of force. There are no additional intermediate transmission components, which reduces transmission delays or interruptions caused by component gaps or wear. This prevents the pressure rod 441 from failing to rotate, thus avoiding the failure of the anti-rebound device 400 to unlock, and ensuring the reliability of the anti-rebound device 400.

[0105] The gate includes a bolt and a transmission mechanism 300. The bolt is engaged and disengaged by the transmission mechanism 300 to ensure the stability of the gate body 100 seal.

[0106] In some possible implementations, the rotary table 460 is coaxially arranged with the output shaft of the transmission mechanism 300. That is, the rotary table 460 rotates as the output shaft of the transmission mechanism 300 rotates. When the transmission mechanism 300 drives the bolt to open, the output shaft synchronously drives the rotary table 460 to rotate, thereby triggering the pressing component 450 to complete the anti-rebound unlocking. When the transmission mechanism 300 drives the bolt to close, the output shaft rotates in the opposite direction, and the rotary table 460 moves in the opposite direction synchronously, causing the anti-rebound device 400 to reset and re-enter the locked standby state. It can be understood that this arrangement allows the action of the bolt and the action of the anti-rebound device 400 to be synchronized, without the need for additional sensors or control programs for coordination, improving the convenience of the door 100 opening and closing process.

[0107] For example, a rotary table 460 is fitted onto the output shaft of the transmission mechanism 300. The rotary table 460 is provided with a clamp, and the rotary table 460 is fixedly connected to the output shaft of the transmission mechanism 300 through the clamp.

[0108] The pressing assembly 450 includes a tilting stop 452 and a support rod 453. The support rod 453 is vertically mounted on the rotary table 460, and the tilting stop 452 is rotatably connected to the support rod 453. The support rod 453 provides support for the tilting stop 452, ensuring its stability during use.

[0109] The rotating shaft of the tilting stop 452 is parallel to the surface of the rotary table 460, and the tilting stop 452 can be rotated to make contact with or disengage from the surface of the rotary table 460.

[0110] The rotary table 460 rotates in the opening direction, and the flipping pressure plate 451 contacts the pressing part 442, causing the flipping stop 452 to abut against the surface of the rotary table 460. The flipping pressure plate 451 then presses down on the pressing part 442.

[0111] The turntable 460 rotates in the opening direction (synchronously with the opening direction of the door 100), causing the flipping pressure plate 451 to approach and contact the pressing part 442. At the moment of contact between the flipping pressure plate 451 and the pressing part 442, the reaction force generated causes the flipping stop 452 to flip away from the pressing part 442 around the axis of the support rod 453, until it abuts against the surface of the turntable 460. The flipping stop 452 is limited by its contact with the surface of the turntable 460 and cannot continue to flip. As the turntable 460 continues to rotate, the force of the flipping pressure plate 451 contacting the pressing part 442 increases. Due to the limiting effect of the flipping stop 452, the force generated by the flipping pressure plate 451 and the pressing part 442 can be decomposed into the direction of movement of the second end 4412 of the pressure rod 441, pressing down on the pressing part 442 and transmitting the force to the second end 4412 of the pressure rod. The second end 4412 of the pressure rod drives the first end 4411 of the pressure rod to disengage the locking tongue 430 from the radial groove 421, thereby unlocking the device.

[0112] The rotary table 460 rotates in the closing direction, and the flipping pressure plate 451 contacts the pressing part 442, causing the flip stop 452 to disengage from the surface of the rotary table 460. The rotary table 460 rotates in the closing direction (synchronously with the closing direction of the door 100), causing the flipping pressure plate 451 to move away from the pressing part 442. The flip stop 452 flips in the opposite direction around the axis of the support rod 453, disengaging from the surface of the rotary table 460 and releasing its restraint. The contact between the flipping pressure plate 451 and the pressing part 442 causes the flipping pressure plate 451 to rotate with the flip stop 452, thereby preventing the pressing part 442 from pressing down and preventing the latch 430 from disengaging from its initial position. This ensures that the latch 430 can form a locking state with the radial groove 421, ensuring the reliability of the door 100's closure.

[0113] Understandably, when the rotary table 460 rotates in the opening direction, the flip stop 452 abuts against the surface of the rotary table 460, and the flip plate 451 presses down on the pressing part 442, thus unlocking the door. Conversely, when the rotary table 460 rotates in the closing direction, the flip stop 452 disengages from the surface of the rotary table 460, releasing the limiting effect on the flip plate 451 and not affecting the locking state formed between the latch 430 and the radial groove 421. The opening and closing of the door 100 is achieved through a mechanical structure, eliminating the need for other auxiliary devices, thereby simplifying the structure of the anti-rebound device 400 and improving its reliability.

[0114] For example, the support rod 453 is a cylindrical steel rod, which is vertically fixed to the surface of the turntable 460 by bolts. The tilt stop 452 is an L-shaped metal block, which is rotatably connected to the top of the support rod 453 by a hinge shaft. The cylindrical steel rod and the L-shaped metal block give the pressing assembly 450 high strength, which can withstand the reaction force generated when the tilt stop 452 tilts and the additional load from the impact of the door 100, thus preventing deformation or breakage of the support rod 453 or the tilt stop 452.

[0115] Combination Figure 3 and Figure 4 , refer to Figure 5 and Figure 6 As shown, the tilt stop 452 includes a rotating part 4521, a connecting part 4522, and a stopping part 4523, which are connected in sequence. For example, the tilt stop 452 can be integrally formed from a metal rod by bending the rotating part 4521, the connecting part 4522, and the stopping part 4523.

[0116] The first end of the rotating part 4521 is connected to the flipping pressure plate 451, and the second end of the rotating part 4521 is rotatably connected to the support rod 453. The axis of rotation of the rotating part 4521 is parallel to the surface of the rotary disk 460. When the flipping stop 452 rotates relative to the support rod 453, the first end of the rotating part 4521 is connected to the flipping pressure plate 451, which can prevent the flipping pressure plate 451 from interfering with the support rod 453, thereby preventing the flipping pressure plate 451 from being unable to press down the pressing part 442.

[0117] Specifically, the flipping stop 452 includes an adapter 454. A rotating part 4521 passes through the center of the adapter 454 and is reliably connected to the adapter 454 by a set screw. The flipping pressure plate 451 can be welded to the adapter 454, thereby indirectly connecting to the rotating part 4521 to ensure the reliability of the connection between the flipping pressure plate 451 and the rotating part 4521.

[0118] Understandably, as the rotary table 460 rotates, the moment the flipping pressure plate 451 contacts the pressing part 442, the reaction force generated at that moment causes the flipping stop 452 to flip away from the pressing part 442 around the axis of the support rod 453. The distance from the axis of the rotating part 4521 to the second end of the stop part 4523 is greater than the distance from the axis of the rotating part 4521 to the surface of the rotary table 460, so that during the rotation of the flipping stop 452, the stop part 4523 can contact the surface of the rotary table 460, forming an abutment contact, preventing the flipping stop 452 from continuing to rotate, and consequently preventing the flipping pressure plate 451 from rotating.

[0119] However, as the rotary table 460 continues to rotate, the force between the flipping pressure plate 451 and the pressing part 442 increases. Due to the limiting effect of the flipping stop 452, the force generated by the flipping pressure plate 451 and the pressing part 442 can be decomposed into the direction of movement of the second end 4412 of the pressure rod 441, pressing down on the pressing part 442 and transmitting the force to the second end 4412 of the pressure rod. The second end 4412 of the pressure rod drives the first end 4411 of the pressure rod, causing the locking tongue 430 to disengage from the radial groove 421, thus unlocking the device.

[0120] The distance from the shaft of the rotating part 4521 to the second end of the stop part 4523 is greater than the distance from the shaft of the rotating part 4521 to the surface of the rotary table 460, so that the stop part 4523 can contact the surface of the rotary table 460 during the rotation of the tilting stop 452, forming an abutment contact.

[0121] The connecting portion 4522 extends perpendicularly to the axis of rotation of the rotating portion 4521. The stopping portion 4523 extends perpendicularly to the rotating portion 4521, and extends toward the second end 4412 of the pressure rod 441. The stopping portion 4523 and the connecting portion 4522 have an included angle. The included angle can be set to an obtuse angle. With this configuration, the tilting stop 452 forms a spatial structure. The stopping portion 4523 abuts against the surface of the rotary table 460, which will cause the stopping portion 4523 to deform. This spatial structure can improve the strength of the tilting stop 452, reduce the deformation of the tilting stop 452, and extend the service life of the tilting stop 452.

[0122] In some possible implementations, the adjusting bolt 420 is provided with an extension 422, which passes through the base 110 of the door body 100. When the door body 100 closes and generates a large impact force, it ensures that the adjusting bolt 420 connected to the base 110 of the door body 100 will not loosen, thereby improving the reliability of the anti-rebound device 400.

[0123] The base 110 of the door body 100 is provided with a mounting member 120, and the extension 422 can be fixed to the base 110 by the mounting member 120. This can prevent the adjusting bolt 420 from loosening.

[0124] For example, the base 110 of the door body 100 is provided with a threaded hole, the extension 422 is configured as a column with external threads, and the mounting member 120 is configured as a nut. The extension 422 is inserted into the mounting through hole, and the mounting member 120 cooperates with the extension 422 to fix the adjusting bolt 420 to the base 110, improving the stability of the adjusting bolt 420 and thus improving the stability of the anti-rebound device 400. Furthermore, this facilitates the replacement and maintenance of the adjusting bolt 420, thereby improving the maintainability of the anti-rebound device 400.

[0125] There are multiple mounting parts 120. Multiple mounting parts 120 are fixed at different positions of the extension 422, which can distribute stress and improve the fixing strength of the adjusting bolt 420.

[0126] The plurality of mounting components 120 includes a first mounting plate and a second mounting component 120. The first mounting component 120 is used to abut against at least a first surface of the door body 100, and the second mounting component 120 is used to abut against at least a second surface of the door body 100. By having the first mounting component 120 and the second mounting component 120 contact different surfaces of the door body 100 respectively, the adjusting bolt 420 can be bidirectionally fixed on the base 110 of the door body 100, ensuring that the adjusting bolt 420 remains stable during use and preventing the adjusting bolt 420 from loosening or shifting.

[0127] The first mounting member 120 and the second mounting member 120 are movably disposed in the extension 422. This allows the extension 422 to be detachable, improving the maintainability of the adjusting bolt 420. Furthermore, by loosening the first mounting member 120 and the second mounting member 120, the position of the adjusting bolt 420 along its own axial direction can be adjusted, thereby changing the relative position between the adjusting bolt 420 and the locking sleeve 410 to meet the needs of different door bodies 100 and improve the applicability of the anti-rebound device 400.

[0128] The first mounting member 120 and the second mounting member 120 can be set as nuts, so that the stability of the adjusting bolt 420 on the base 110 of the door body 100 can be improved by threaded connection. The first mounting member 120 and the second mounting member 120 can also be fixed to the extension 422 by setting set screws, which further improves the stability of the adjusting bolt 420 on the base 110 of the door body 100.

[0129] The operator rotates the handwheel of the transmission mechanism 300, bringing the door 100 into imminent contact with the cabin panel via the transmission mechanism 300. The adjusting bolt 420 is then aligned coaxially with the locking sleeve 410, allowing the adjusting bolt 420 to enter the locking sleeve 410. Using the first mounting piece 120 and the second mounting piece 120, the relative axial position of the radial groove 421 of the adjusting bolt 420 and the locking tongue 432 is finely adjusted to ensure full contact between the radial groove 421 and the locking tongue 432. Then, the first mounting piece 120 and the second mounting piece 120 are locked. This ensures that the anti-rebound device 400 functions effectively.

[0130] The following explanation focuses on the closing and opening of the door 100 using the anti-rebound device 400.

[0131] When the door 100 is closed, the operator moves the door 100 closer to the hatch panel, causing the adjusting bolt 420 to enter the locking sleeve 410. During this process, the adjusting bolt 420 first contacts the locking tongue 432. As the adjusting bolt 420 moves, the locking tongue 432 rotates clockwise until the radial groove 421 of the adjusting bolt 420 moves below the locking tongue 432. Under the action of gravity, the locking tongue 432 rotates in the opposite direction, causing the locking tongue 432 to embed into the radial groove 421. The locking tongue 432 is embedded into the radial groove 421 of the adjusting bolt 420 through the connecting hole 411, and the locking tongue 432 abuts against the radial groove 421. At this time, due to the inertia of the door 100, it continues to move along the original insertion direction until it touches the hatch panel. After the door 100 touches the hatch panel, it is subjected to a force from the hatch panel opposite to the insertion direction. The radial groove 421 of the adjusting bolt 420 of the door body 100 contacts the latch 432. The adjusting bolt 420 applies a force in the opposite direction of insertion to the latch 432, causing the latch 432 to tend to rotate counterclockwise. The limiting part 431 abuts against the support seat 210 to restrict the rotation of the latch 430. The latch 432 and the radial groove 421 can form a rigid locking state, thereby preventing the door body 100 from springing back.

[0132] Then, the operator turns the handwheel of the transmission mechanism 300, which engages the door bolt. During this process, the rotary table 460 rotates with the output shaft of the transmission mechanism 300, causing the flipping pressure plate 451 to contact the pressing part 442, disengaging the flipping stop 452 from the surface of the rotary table 460. The rotation of the rotary table 460 drives the flipping pressure plate 451 to move away from the pressing part 442, causing the flipping stop 452 to contact the pressing part 442 and flip in the opposite direction around the axis of the support rod 453, disengaging the flipping stop 452 from the surface of the rotary table 460 and releasing the restriction on the flipping stop 452. This avoids pressing down on the pressing part 442, thereby preventing the latch 430 from disengaging from its initial position and ensuring the reliability of the door 100 closing.

[0133] When the door 100 is opened, the operator reverses the handwheel of the transmission mechanism 300 to open the bolt. During this process, the rotary table 460 rotates with the output shaft of the transmission mechanism 300, causing the flipping pressure plate 451 to approach and contact the pressing part 442. The reaction force generated at the moment of contact between the flipping pressure plate 451 and the pressing part 442 causes the flipping stop 452 to flip away from the pressing part 442 around the axis of the support rod 453 until it abuts against the surface of the rotary table 460. The contact between the flipping stop 452 and the surface of the rotary table 460 is limited, preventing further flipping. As the rotating disc 460 continues to rotate, the force between the flipping pressure plate 451 and the pressing part 442 increases. Due to the limiting effect of the flipping stop 452, the force generated by the flipping pressure plate 451 and the pressing part 442 can be decomposed into the direction of movement of the second end 4412 of the pressure rod 441. Pressing down on the pressing part 442 transmits the force to the second end 4412 of the pressure rod. The second end 4412 of the pressure rod drives the first end 4411 of the pressure rod, causing the locking tongue 430 to disengage from the radial groove 421, thus unlocking the device.

[0134] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0135] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An anti-rebound device, characterized in that, The anti-rebound device (400) includes a matching adjusting bolt (420) and a locking sleeve (410). The locking sleeve (410) is used to install on the support seat (210) of the cabin panel, and the adjusting bolt (420) is used to install on the door body (100). The anti-rebound device (400) includes a locking tongue (430) which is rotatably connected to the support base (210); the locking tongue (430) restricts the movement of the adjusting pin (420), and the support base (210) abuts against the locking tongue (430) to restrict the locking tongue (430) from rotating away from the adjusting pin (420); When the anti-rebound device (400) is in the second state, the locking tongue (430) rotates and disengages from the adjusting pin (420), and the adjusting pin (420) can move relative to the locking sleeve (410).

2. The anti-rebound device according to claim 1, characterized in that, The adjusting bolt (420) is provided with a radial groove (421), and the locking sleeve (410) is provided with a connecting hole (411) that matches the radial groove (421); The latch (430) includes a limiting part (431) and a latch part (432). The limiting part (431) and the latch part (432) are coaxial and fixedly connected. The latch part (432) is matched with the radial groove (421). The limiting part (431) can abut against the support base (210) to restrict the rotation of the locking tongue (430), and the locking tongue part (432) abuts against the radial groove (421) of the adjusting shaft bolt (420) through the connecting hole (411).

3. The anti-rebound device according to claim 2, characterized in that, The anti-rebound device (400) includes a release assembly (440) connected to the support base (210), and at least a portion of the release assembly (440) contacts the limiting portion (431). The disengagement component (440) can drive the limiting part (431) to rotate, and the locking tongue part (432) disengages from the radial groove (421).

4. The anti-rebound device according to claim 3, characterized in that, The release assembly (440) includes a pressure rod (441), the middle part of which is hinged to the support base (210), and the first end of the pressure rod (441) abuts against the side wall of the limiting part (431) near the adjusting bolt (420). When the pressure rod (441) rotates, the first end of the pressure rod (441) can drive the limiting part (431) to rotate.

5. The anti-rebound device according to claim 4, characterized in that, The anti-rebound device (400) includes a rotary table (460) and a pressing assembly (450), the pressing assembly (450) being mounted on the rotary table (460); The pressing assembly (450) includes a flipping pressure plate (451), which overlaps with the pressing portion (442) of the second end of the pressure rod (441) in the direction of movement along the second end of the pressure rod (441). The rotation direction of the flipping pressure plate (451) is perpendicular to the movement direction of the second end of the pressure rod (441), and the flipping pressure plate (451) presses down on the pressing part (442).

6. The anti-rebound device according to claim 5, characterized in that, The pressing assembly (450) includes a tilting stop (452) and a support rod (453). The support rod (453) is vertically mounted on the rotary table (460). The tilting stop (452) is rotatably connected to the support rod (453). The rotation axis of the tilting stop (452) is parallel to the surface of the rotary table (460). The turntable (460) rotates in the opening direction, the flipping pressure plate (451) contacts the pressing part (442) so that the flipping stop (452) abuts against the turntable (460), and the flipping pressure plate (451) presses down on the pressing part (442); The turntable (460) rotates in the closing direction, and the flipping pressure plate (451) contacts the pressing part (442) to disengage the flipping stop (452) from the turntable (460).

7. The anti-rebound device according to claim 6, characterized in that, The overturning stop (452) includes a rotating part (4521), a connecting part (4522) and a stopping part (4523), which are connected in sequence. The first end of the rotating part (4521) is connected to the flipping pressure plate (451), the second end of the rotating part (4521) is rotatably connected to the support rod (453), and the rotating shaft of the rotating part (4521) is parallel to the disk surface of the rotary table (460). The connecting portion (4522) extends from the rotating portion (4521) perpendicular to the axis of rotation of the rotating portion (4521), and the stop portion (4523) extends perpendicular to the rotating portion (4521) and has an angle with the connecting portion (4522); The distance from the shaft of the rotating part (4521) to the second end of the stop part (4523) is greater than the distance from the shaft of the rotating part (4521) to the surface of the rotary table (460).

8. The anti-rebound device according to any one of claims 2-7, characterized in that, The locking tongue (430) is configured as a cam, and the limiting part (431) is configured as a limiting rod, with one end of the limiting rod being coaxially configured with the cam.

9. The anti-rebound device according to any one of claims 2-7, characterized in that, The anti-rebound device (400) includes an elastic element (470), one end of which is connected to the limiting part (431), and the other end of which is connected to the support base (210).

10. A gate, characterized in that, include: A door (100) for connecting to a cabin panel; A transmission mechanism (300) is used to drive the door bolts of the cabin panel to open and close; Anti-rebound device (400), wherein the rotary table (460) of the anti-rebound device (400) is coaxially arranged with the output shaft of the transmission mechanism (300).

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