An integrated closed dual-lid closure interface

Abstract

The application relates to an integrally closed double-cover closed interface of electrical auxiliary equipment, which comprises a shell, an outer cover, an inner cover and an interface module. The shell comprises a bottom plate located at the bottom and a side plate surrounded at the periphery of the bottom plate, and forms a shell inner cavity with an open top end. A through hole is arranged at the center of the bottom plate and is used for embedding and installing the interface module. The inner cover covers the hole near the shell inner cavity, and forms an inner layer protection. The outer cover comprises a cover plate and a linkage closing connecting rod. The cover plate covers the opening of the shell inner cavity. One end of the linkage closing connecting rod is fixed to the inner wall of the cover plate, and the other end is hinged to the side plate, which is used for hinging opening and closing of the whole outer cover and linkage closing of the inner cover. The cover plate far from the hinge end of the outer cover is locked with the bottom plate through pressing self-locking buckles. The interface is covered by double protective covers, has the structural characteristics of sequentially opening and linkage closing, avoids the mistaken contact of the interface module, and improves the water and gas tightness and the electromagnetic shielding protection effect of the whole shelter.

Description

Technical Field

[0001] This invention belongs to the field of electrical auxiliary equipment, and specifically relates to an integrated closed double-cover sealed interface. Background Technology

[0002] As a versatile loading platform, modular shelters and their carrier vehicles play an important role in various fields such as military defense and medical care. When a modular shelter is in operation, it needs to connect to equipment inside the shelter or to external equipment through various interfaces set in the shelter walls, such as power interfaces for charging and discharging load equipment, and signal interfaces for communication with the outside world.

[0003] Various interfaces of the modular shelter are generally embedded in the shelter's walls and require protection to meet the shelter's water and air tightness and electromagnetic shielding requirements. However, existing interfaces generally use single-layer protection, which has limited effectiveness in terms of water and air tightness and electromagnetic shielding. In addition, single-layer protection can easily cause accidental contact between the interface modules (specifically, power adapter boards or signal adapter boards, etc.) when accidentally opened.

[0004] Therefore, it is necessary to improve the self-protection level of various interfaces of the modular shelter. Summary of the Invention

[0005] The technical problem to be solved:

[0006] To avoid the shortcomings of existing technologies, this invention provides an integrated closed double-cover sealing interface. The double protective cover design covers the interface module. The double protective cover has the structural characteristics of opening and closing in sequence, which avoids accidental contact of the interface module and improves the overall water and air tightness and electromagnetic shielding protection effect of the container.

[0007] The technical solution of the present invention is: an integrated closed double-cover sealing interface, comprising a shell, an outer cover, an inner cover, and an interface module;

[0008] The housing includes a bottom plate and side plates. The bottom plate is located at the bottom of the housing, and the side plates surround the bottom plate to form an open-top housing cavity. A through hole is provided at the center of the bottom plate perpendicular to the bottom plate for embedding and installing an interface module.

[0009] The inner cover is located in the inner cavity of the shell and is used to cover the opening of the through hole near the inner cavity of the shell. One end of the inner cover is hinged to the bottom plate, and the other end is locked to the bottom plate by a spring lock.

[0010] The outer cover includes a cover plate and a linkage closing rod; the cover plate is used to close the opening of the inner cavity of the shell; one end of the linkage closing rod is fixed to the inner wall of the cover plate, and the other end is hinged to the side plate. The linkage closing rod is used for the hinged opening and closing of the outer cover as a whole and the linkage closing of the inner cover; the hinged end of the cover plate away from the outer cover is locked to the bottom plate by pressing the self-locking buckle.

[0011] A further technical solution of the present invention is as follows: the hinge end of the inner cover is symmetrically provided with two first lugs, and the bottom plate is provided with two first hinge seats corresponding to the two first lugs of the inner cover. The first pin is inserted into the hinge hole designed to match the first hinge seat and the first lug; the first return spring is fitted in the middle of the first pin and is used for elastic return when the inner cover is hinged and opened relative to the bottom plate.

[0012] A further technical solution of the present invention is: the inner cover is provided with a fitting part matching the shape of the through hole on the side facing the bottom plate, the fitting part protrudes outward facing the through hole of the bottom plate, and is used to fit and seal with the opening of the through hole; the core of the fitting part is concave, forming a fitting wall structure with a circumferentially convex shape, and the fitting part is made of an elastic sealing material.

[0013] A further technical solution of the present invention is as follows: the spring latch includes a latch plate, a second pin, and a second return spring; the lower end face of the latch plate is symmetrically provided with two second lugs; a second hinge seat is fixed on the base plate, the second hinge seat being a double-lug hinge seat; the second lugs are inserted between the double lugs of the second hinge seat and are hinged together by the second pin; the second return spring passes through the second pin and is located between the two second lugs, for elastic return when the latch plate is hinged open and closed relative to the second hinge seat; one end of the latch plate facing the inner cover is provided with an outer hook angle, which engages with the inner hook angle corresponding to the inner cover for locking the inner cover.

[0014] A further technical solution of the present invention is: the outer ends of the outer hook and the inner hook are both double-sloped structures with a central outward convexity, which are used for sliding engagement when the two are fastened together; the side of the outer hook facing away from its double-sloped surface is the fastening working surface of the outer hook, and the side of the inner hook facing away from its double-sloped surface is the fastening working surface of the inner hook; when the two are fastened and locked together, the fastening working surface of the outer hook and the fastening working surface of the inner hook are in contact.

[0015] A further technical solution of the present invention is: the main body of the linkage closing link is a stepped curved surface, one end of which is perpendicular to the cover plate and fixed to the cover plate; the middle part is parallel to the cover plate and is used to push the inner cover to close in linkage when the outer cover is closed; the other end of which is stepped down to avoid the inner cover, and this end is repositionably hinged to the side plate of the housing.

[0016] A further technical solution of the present invention is as follows: two stiffening plates are symmetrically provided on both sides of the bottom surface of the linkage closing link, following the surface shape of its stepped curved surface. When the outer cover is closed, the middle part of the stiffening plate abuts against the inner cover for linkage closing of the inner cover; the end of the stiffening plate near the shell is provided with a hinge hole for hinge connection with the side plate through the third pin; the third return spring is installed on the third pin and located between the two stiffening plates for elastic return when the linkage closing link is hinged and opened / closed relative to the shell.

[0017] A further technical solution of the present invention is: the side plate of the housing is provided with a slot, the width of the slot is matched with the width of the linkage closing link, and the side walls of the slot are symmetrically provided with mounting holes, which are respectively matched with the hinge holes at the ends of the two stiffeners; the third pin is inserted into the hinge hole of the stiffener and the mounting hole on the side wall of the slot.

[0018] A further technical solution of the present invention is: the press-locking buckle includes a press-locking rebound lever and a press-locking rebound buckle; the press-locking rebound lever is located on the cover plate away from the hinge end of the outer cover, one end of which is fixed to the inner wall of the cover plate, and the other end cooperates with the press-locking rebound buckle installed on the base plate; the press-locking rebound buckle is used to lock the press-locking rebound lever.

[0019] Beneficial effects

[0020] The beneficial effects of this invention are as follows: This invention provides an integrated closed double-cover sealed interface, in which interface modules such as power adapter boards or signal adapter boards are placed inside through holes in the base plate. The inner cover achieves inner layer sealing of the through holes, and the outer cover achieves outer layer sealing of the open end of the shell. When opening the interface for use, both covers need to be opened sequentially, effectively eliminating accidental contact with the interface modules and preventing misoperation. The double-layer protection improves the interface's own protection level, and ensures the interface's airtightness when closed, thereby ensuring the overall water and air tightness of the container and meeting the electromagnetic shielding requirements.

[0021] The invention features an innovative plate-type linkage closing rod for the outer cover, which is linked with the inner cover when closing. By pressing the outer cover plate, the linkage closing rod will push the inner cover to close in conjunction. The inner cover is automatically and elastically locked by a spring lock, and the outer cover is automatically locked by pressing the self-locking lock. The double cover locking is a one-step operation, which is convenient to use. When the interface stops working, it can quickly achieve water and air tightness and electromagnetic shielding of the container.

[0022] In this invention, a return spring is used to enable the inner and outer covers to open and close with elastic reset function, making the opening and closing process of the inner and outer covers smooth. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 This is a cross-sectional schematic diagram of the outer cover structure of the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of the inner cover structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the buckle plate structure of the spring lock in this invention;

[0028] Figure 6 This is a cross-sectional schematic diagram of the shell structure of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Housing; 11. Base plate; 111. Through hole; 112. First hinge seat; 113. Second hinge seat; 114. First hinge seat hole; 115. Second hinge seat hole; 12. Side plate; 121. Slot; 122. Mounting hole; 13. Housing cavity; 2. Outer cover; 21. Cover plate; 22. Linkage closing rod; 221. Rib plate; 222. Hinge hole; 23. Third pin; 24. Third return spring; 3. Inner cover; 31. First ear piece; 32. First pin; 33. First return spring; 34. Fitting part; 35. Inner hook angle; 36. First ear piece hole; 4. Interface module; 5. Spring lock; 51. Buckle plate; 511. Second ear piece; 512. Outer hook angle; 513. Second ear piece hole; 52. Second pin; 53. Second return spring; 6. Press self-locking lock; 61. Press self-locking rebound lever; 62. Press self-locking rebound lock. Detailed Implementation

[0031] The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] This embodiment provides an integrated closed double-cover sealing interface, which is installed on the inner or outer wall of a vehicle-mounted container. The inner or outer wall of the container has a mounting groove for installing the integrated closed double-cover sealing interface, and the outer contour of the mounting groove matches the shape of the integrated closed double-cover sealing interface.

[0034] See Figure 1-6The integrated closed double-cover interface of this embodiment includes a housing 1, an outer cover 2, an inner cover 3, and an interface module 4. The housing 1 includes a bottom plate 11 and side plates 12. The bottom plate 11 is located at the bottom of the housing 1, and the side plates 12 close around the bottom plate 11. The bottom plate 11 and the side plates 12 form a housing 1 with an open top and an inner cavity 13. In this embodiment, the housing 1 adopts an integral structure. A through hole 111 is provided perpendicular to the center of the bottom plate 11 for embedding and installing the interface module 4. The interface module 4 is specifically a power adapter board or a signal adapter board, etc., used for power or communication connections with equipment inside and outside the shelter.

[0035] The inner cover 3 provides inner protection for the interface module 4. The inner cover 3 is located within the inner cavity 13 of the housing and covers the opening of the through hole 111 near the inner cavity 13. One end of the inner cover 3 is hinged to the base plate 11, and the other end is locked to the base plate 11 by a spring lock 5. Specifically, two first hinge seats 112 are symmetrically fixed on one side of the base plate 11 located at the through hole 111. Each first hinge seat 112 has a first hinge seat hole 114 for hinged connection with the inner cover 3. The hinged end of the inner cover 3, matching the two first hinge seats 112, has two first lugs 31. Each first lug 31 has a first lug hole 36 that matches the first hinge seat hole 114. During hinged installation, the two first lugs 31 of the inner cover 3 are inserted between the two first hinge seats 112, so that the first lug hole 36 is coaxially aligned with the first hinge seat hole 114. The hinge of the inner cover 3 is achieved by inserting the first pin 32 through the first lug hole 36 and the first hinge seat hole 114. In order to achieve the elastic returnable flipping of the inner cover 3, a first return spring 33 is installed on the first pin 32. The first return spring 33 is a torsion spring, located between the two first lugs 31. One outer arm of the first return spring 33 abuts against the inner wall of the inner cover 3, and the other outer arm abuts against the base plate 11, thereby achieving the elastic return of the inner cover 3 when it is hinged and opened and closed relative to the base plate 11.

[0036] The inner cover 3 has a fitting part 34 on its inner wall facing the base plate 11, which matches the shape of the through hole 111. The fitting part 34 protrudes outward facing the through hole 111 and is used to fit and seal the opening of the through hole 111. The core of the fitting part 34 is concave, forming a fitting wall structure with a circumferentially convex shape. When the inner cover 3 is closed, the outer wall surface of the fitting part 34 contacts the inner wall surface of the through hole 111. The fitting part 34 is made of an elastic sealing material, which effectively seals the opening of the through hole 111 facing the inner cavity 13 of the housing.

[0037] The spring latch 5 is located on one side of the through hole 111, opposite to the hinge side of the inner cover 3. The spring latch 5 includes a latch plate 51, a second pin 52, and a second return spring 53. A second hinge seat 113 is fixedly installed on the base plate 11, facing the first hinge seat 112, and located on the side of the through hole 111 away from the first hinge seat 112. The second hinge seat 113 is a double-eared hinge seat, with a second hinge seat hole 115 on its double-eared plates for hinged connection with the latch plate 51. The lower end face of the latch plate 51 is symmetrically provided with two second ear pieces 511, each with a second ear piece hole 513. During hinged connection, the two second ear pieces 511 of the latch plate 51 are inserted between the double ear pieces of the second hinge seat 113, with the second ear piece hole 513 coaxially aligned with the second hinge seat hole 115, and the hinged engagement is achieved by inserting the second pin 52. The second return spring 53 is inserted into the second pin 52 and located between the two second ear pieces 511. The second return spring 53 is a torsion spring, with one outer arm abutting against the inner wall of the buckle plate 51 and the other outer arm abutting against the base plate 11. The second return spring 53 and the second pin 52 realize the elastic resettable hinge between the buckle plate 51 and the base plate 11.

[0038] An outer hook 512 is provided at the end of the snap plate 51 facing the inner cover 3, which engages with the corresponding inner hook 35 of the inner cover 3 for locking the inner cover 3. Both the outer hook 512 and the inner hook 35 have double-beveled structures with a centrally convex shape at their outer ends, allowing for sliding engagement during engagement. The side of the outer hook 512 facing away from its double bevels is its engagement working surface, which is perpendicular to the main body of the snap plate 51, and its orientation is the same as that of the second ear piece 511. The side of the inner hook 35 facing away from its double bevels is its engagement working surface, which is perpendicular to the main cover plate of the inner cover 3, and its orientation is opposite to that of the fitting part 34. During locking, the engagement working surfaces of the outer hook 512 and the inner hook 35 are in contact.

[0039] Referring to 2 and 5, when it is necessary to open the inner cover 3, press the side of the buckle plate 51 away from the outer hook angle 512. The outer hook angle 512 side of the buckle plate 51 will flip upward, releasing the lock on the inner hook angle 35. Under the elastic force of the first return spring 33, the inner cover 3 will flip open around the first pin 32. Release the pressure on the buckle plate 51, and the buckle plate 51 will return to its original position under the action of the second return spring 53.

[0040] The outer cover 2 provides outer protection for the entire interface. The outer cover 2 includes a cover plate 21 and a linkage closing rod 22. The cover plate 21 and the open end of the housing 1 are designed to match the shape and shape of the open end, and are used to close the open end of the housing cavity 13. One end of the linkage closing rod 22 is fixed to the middle of the inner wall surface of the cover plate 21 facing the housing cavity 13, and the other end is hinged to the side plate 12. The linkage closing rod 22 is used for the hinged opening and closing of the outer cover 2 as a whole and the linkage closing of the inner cover 2. The hinged end of the cover plate 21 away from the outer cover 2 is locked to the bottom plate 11 by pressing the self-locking latch 6.

[0041] Specifically, the main body of the linkage closing link 22 is a stepped curved surface, fixed to the inner wall of the cover plate 21. One end of the linkage closing link 22 is perpendicular to the cover plate 21 and fixed to the middle of the inner wall of the cover plate 21; the middle part of the linkage closing link 22 is parallel to the cover plate 21, and the middle part is used to push the inner cover 3 to close when the outer cover 2 closes; the other end of the linkage closing link 22 is stepped down to avoid the inner cover 3. Two stiffening plates 221 are symmetrically provided on both sides of the bottom surface of the linkage closing link 22. The stiffening plates 221 are set according to the surface shape of the stepped curved surface of the linkage closing link 22. The linkage closing link 22 achieves hinge connection with the side plate 12 and pushes the inner cover 3 to close through its stiffening plates 221. The two stiffening plates 221 play a role in strengthening the support of the main curved surface of the linkage closing link 22. The stiffening plates 221 have hinge holes 222 at the ends near the side plate 12 for hinged engagement. Correspondingly, a slot 121 is provided on the side plate 12. The width of the slot 121 matches the width of the linkage closing rod 22. Mounting holes 122 are symmetrically provided on both sides of the slot 121, respectively matching the hinge holes 222 at the ends of the two stiffeners 221. When the outer cover 2 is hinged to the housing 1, the linkage closing rod 22 is inserted into the slot 121, making the hinge holes 222 of the two stiffeners 221 coaxially aligned with the mounting holes 122 on both sides of the slot 121. The third pin 23 is then inserted into the hinge hole 222 and the mounting hole 122 to achieve the hinge. To achieve the elastic return of the outer cover 2 during opening and closing, a third return spring 24 is fitted on the third pin 23. The third return spring 24 is located between the two stiffeners 221. The third return spring 24 is a torsion spring, with one outer arm abutting against the inner wall of the linkage closing rod 22, and the other outer arm abutting against the bottom plate 11. When the outer cover 2 is closed, the middle part of the stiffener 221 abuts against the outer end face of the inner cover 3, and the inner cover 3 is closed in a linkage manner. The inner hook angle 35 at the end of the inner cover 3 touches the outer hook angle 512 of the buckle plate 51, thereby realizing the automatic locking of the inner cover 3.

[0042] The press-locking latch 6 includes a press-locking rebound lever 61 and a press-locking rebound latch 62. The press-locking rebound lever 61 is located at the hinge end of the cover plate 21 away from the outer cover 2. One end of the lever is fixed to the inner wall of the cover plate 21, and the other end engages with the press-locking rebound latch 62 installed on the base plate 11. The base plate 11 has blind holes for installing the press-locking rebound latch 62 at positions opposite to the press-locking rebound lever 61. The press-locking rebound lever 61 and the press-locking rebound latch 62 form a set of press-fit locking components, which can be locked or unlocked by pressing.

[0043] When the outer cover 2 is closed, press the cover plate 21 away from the hinge end of the outer cover 2, that is, press the side where the self-locking rebound lever 61 is installed. The outer cover 2 will rotate around the third pin 23, and the linkage closing link 22 of the outer cover 2 will push the inner cover 3 to close. When the self-locking rebound lever 61 and the self-locking rebound latch 62 are pressed and locked, the outer cover 2 will close the open end of the housing 1. When opening the outer cover 2, press the side of the cover plate 21 where the self-locking rebound lever 61 is installed, and press the self-locking latch 6 to unlock. The outer cover 2 will elastically rebound and open under the action of the third return spring 24. If it is necessary to open the inner cover 3 at this time, the spring latch 5 can be manually pressed.

[0044] The hinge side of the outer cover 2 is on the same side as the hinge side of the inner cover 3, and the locking side of the outer cover 2 is on the same side as the locking side of the inner cover 3. This invention features an integrated double-cover system where the two covers open sequentially during operation to eliminate malfunctions, and the synchronized closing of the two covers when operation stops ensures rapid achievement of water and air tightness and electromagnetic shielding.

[0045] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A one-piece closed double-cap sealing interface, characterized in that, Includes housing, outer cover, inner cover, and interface module; The housing includes a bottom plate and side plates. The bottom plate is located at the bottom of the housing, and the side plates surround the bottom plate to form an open-top housing cavity. A through hole is provided at the center of the bottom plate perpendicular to the bottom plate for embedding and installing an interface module. The inner cover is located in the inner cavity of the shell and is used to cover the opening of the through hole near the inner cavity of the shell. One end of the inner cover is hinged to the bottom plate, and the other end is locked to the bottom plate by a spring lock. The outer cover includes a cover plate and a linkage closing rod; the cover plate is used to close the opening of the inner cavity of the shell; one end of the linkage closing rod is fixed to the inner wall of the cover plate, and the other end is hinged to the side plate. The linkage closing rod is used for the hinged opening and closing of the outer cover as a whole and the linkage closing of the inner cover; the hinged end of the cover plate away from the outer cover is locked to the bottom plate by pressing the self-locking buckle.

2. The integrated closed double-cap sealing interface according to claim 1, characterized in that, The inner cover has two symmetrical first lugs at its hinge end. The base plate has two first hinge seats corresponding to the two first lugs of the inner cover. The first pin is inserted into the hinge holes of the first hinge seats and the first lugs to make hinge engagement. The first return spring is fitted in the middle of the first pin and is used for elastic return when the inner cover is hinged and opened relative to the base plate.

3. The integrated closed double-cap sealing interface according to claim 1, characterized in that, The inner cover has a fitting part on the side facing the bottom plate that matches the shape of the through hole. The fitting part protrudes outward towards the through hole and is used to fit and seal with the opening of the through hole. The core of the fitting part is concave, forming a fitting wall structure with a circumferentially convex shape. The fitting part is made of elastic sealing material.

4. The integrated closed double-cap sealing interface according to claim 1, characterized in that, The spring latch includes a latch plate, a second pin, and a second return spring. Two second lugs are symmetrically arranged on the lower end of the latch plate. A second hinge seat, which is a double-lug hinge seat, is fixed on the base plate. The two second lugs of the latch plate are inserted between the double lugs of the second hinge seat and hinged together by the second pin. The second return spring passes through the second pin and is located between the two second lugs, used for elastic return when the latch plate is hinged open and closed relative to the second hinge seat. One end of the latch plate facing the inner cover has an outer hook angle, which engages with the corresponding inner hook angle of the inner cover for locking the inner cover.

5. The integrated closed double-cap sealing interface according to claim 4, characterized in that, The outer and inner hooks are both double-sloped structures with a central outward convexity at their outer ends, which are used for sliding engagement when they are fastened together. The side of the outer hook that faces away from its double-sloped surface is the fastening working surface of the outer hook, and the side of the inner hook that faces away from its double-sloped surface is the fastening working surface of the inner hook. When the two are fastened and locked together, the fastening working surface of the outer hook is in contact with the fastening working surface of the inner hook.

6. The integrated closed double-cap sealing interface according to claim 1, characterized in that, The main body of the linkage closing link is a stepped curved surface. One end is perpendicular to the cover plate and fixed to the cover plate; the middle part is parallel to the cover plate and is used to push the inner cover to close when the outer cover is closed; the other end is stepped down to avoid the inner cover, and this end is repositionably hinged to the side plate of the shell.

7. The integrated closed double-cap sealing interface according to claim 6, characterized in that, The bottom surface of the linkage closing link is symmetrically provided with two stiffening plates on both sides, following the stepped curved surface shape. When the outer cover is closed, the middle part of the stiffening plate abuts against the inner cover to link and close the inner cover. The end of the stiffening plate near the shell is provided with a hinge hole for passing through the third pin and hinged to the side plate. The third return spring is installed on the third pin and is located between the two stiffening plates, for elastic return when the linkage closing link is hinged to the shell.

8. The integrated closed double-cap sealing interface according to claim 7, characterized in that, The side plate of the housing is provided with a slot, the width of which matches the width of the linkage closing link. The two side walls of the slot are symmetrically provided with mounting holes, which match the hinge holes at the ends of the two stiffeners respectively. The third pin is inserted into the hinge hole of the stiffener and the mounting hole on the side wall of the slot.

9. The integrated closed double-cap sealing interface according to claim 1, characterized in that, The press-locking latch includes a press-locking rebound lever and a press-locking rebound latch; the press-locking rebound lever is located on the cover plate away from the hinge end of the outer cover, one end of which is fixed to the inner wall of the cover plate, and the other end cooperates with the press-locking rebound latch installed on the base plate; the press-locking rebound latch is used to lock the press-locking rebound lever.

Images