A darkroom shielding door lock body structure

Abstract

The present invention relates to the field of shielding door processing technology, specifically a darkroom shielding door lock structure, including a door frame and a door body hinged on the door frame, and also including: a shielding locking mechanism, which is arranged between the door body and the door frame, including a shielding locking assembly and an arc-shaped spring leaf arranged in combination; the shielding locking assembly includes a locking shielding blade, a locking shielding clamp seat located on both sides of the locking shielding blade, and a driving assembly for driving the locking shielding clamp seat to move. The present invention can form a complete shielding structure by combining the shielding locking assembly with the arc-shaped spring leaf and the arc-shaped blade, thereby achieving effective electromagnetic shielding of the connection position between the door body and the door frame. At the same time, a locking shielding clamp seat that can be symmetrically opened and closed is provided in the shielding locking assembly. After the locking shielding clamp seat locks and clamps the locking shielding blade, it can have the effects of both a lock body and a shielding structure. After the locking shielding clamp seat expands outward to fully unlock the locking shielding blade, it can greatly reduce the resistance when the door body is opened.

Description

Technical Field

[0001] The invention relates to the technical field of shielding doors, in particular to a lock body structure of a darkroom shielding door. Background Art

[0002] The primary function of a shielded room is to isolate external electromagnetic interference and ensure the proper functioning of electronic and electrical equipment within. In particular, when measuring and testing electronic components and electrical equipment, utilizing an electromagnetic shielded room or darkroom to simulate an ideal electromagnetic environment can improve the accuracy of test results. The shielded room's shell is assembled from high-quality cold-rolled galvanized steel modules and equipped with electromagnetic leakage-proof shielding doors, dedicated ventilation waveguide windows, and transmission and fire protection waveguides. The shielding quality of the shielding door directly impacts the shielding effectiveness of the entire shielded room.

[0003] For example, patent publication number CN113944417A discloses a shielded pneumatic fan-shaped door comprising a door frame and a door body. The door body is hingedly mounted on the door frame, and an outside handle is rotatably connected to the door body. The outside handle extends through the door body via a rotating shaft and is connected to an inside handle. A spur gear is sleeved on the side of the rotating shaft near the outside handle. A first and a second spur rack are meshed and connected to the left and right sides of the spur gear, respectively. The second spur rack is driven by a pneumatic cylinder. Connecting rods are fixed to the upper and lower ends of the first spur rack. A limit guide box is symmetrically provided on the door body. The end of the connecting rod, distal from the first spur rack, extends into the limit guide box and is connected to a limit guide rod slidably connected to the limit guide box. One end of the limit guide rod and the connecting rod extends outside the limit guide box and is connected to a locking rod. The door frame is provided with a locking groove that matches the locking rod. The shielding effect between the door frame and the door body is achieved by using a tapered blade and an L-shaped blade structure in conjunction with a beryllium copper spring, thereby improving the shielding effect between the door frame and the door body.

[0004] As in the prior art of the above-mentioned patent, the lock body and the blade reed are designed independently, and the lock body can only lock and unlock the door body. When the lock body is unlocked, the door body needs to overcome the static friction between the blade and the reed when opening. Since the contact line around the blade and the reed is long and the static friction is large, a large force is required to open the door body; in addition, an oxide layer is likely to form on the surface of the blade and the reed after long-term use, and an excessively thick oxide layer is likely to damage the conductive contact between the blade and the reed, affecting the electromagnetic shielding effect of the shielded door. Therefore, a darkroom shielded door lock body structure is urgently needed to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a darkroom shielding door lock structure to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a darkroom shielded door lock structure, comprising a door frame and a door body hinged to the door frame, and further comprising: a shielded locking mechanism disposed between the door body and the door frame, comprising a shielded locking assembly and an arc-shaped spring leaf arranged in combination;

[0007] The shield locking assembly includes a locking shield blade, a locking shield clamp seat located on both sides of the locking shield blade, and a driving assembly for driving the locking shield clamp seat to move;

[0008] After the driving component drives the locking shielding clamp seat to move and clamp the locking shielding blade, locking and conductive contact are achieved between the door body and the door frame; the driving component drives the locking shielding clamp seat to move and fully unlock the locking shielding blade to reduce the resistance when the door body is opened; when the driving component drives the locking shielding clamp seat to half-unlock the locking shielding blade, the oxide layer at the contact position of the locking shielding clamp seat and the locking shielding blade can be cleaned when the door body is opened.

[0009] Preferably, the shielding locking assembly and the arc-shaped spring are combined into a complete rectangular structure, and there is conductive contact between the shielding locking assembly and the arc-shaped spring. The shielding locking mechanism also includes an arc-shaped blade, which is fixedly mounted on the door frame, and the arc-shaped blade can be inserted into the arc-shaped spring.

[0010] Preferably, the shielding locking assembly also includes a mounting seat, which is fixedly mounted on the back of the door body, the locking shielding clamp seat is symmetrically arranged inside the mounting seat, the locking shielding blade is fixedly mounted on the front of the door frame, and the driving assembly is movably mounted on the mounting seat.

[0011] Preferably, the locking shielding blade and the locking shielding clamp seat are provided with contact surfaces that cooperate with each other, the locking shielding clamp seat is provided with an inner scraping portion for cleaning the oxide layer on the contact surface of the locking shielding blade, and the locking shielding blade is provided with an outer scraping portion for cleaning the oxide layer on the contact surface of the locking shielding clamp seat.

[0012] Preferably, the drive assembly includes a transmission bracket and a connecting sleeve, the connecting sleeve is fixedly connected to the transmission bracket, a connecting rod is movably sleeved in the connecting sleeve, the connecting rod is fixedly connected to the locking shielding clamp seat, and a compression spring is movably sleeved outside the connecting rod.

[0013] Preferably, the compression spring is movably sleeved on the outside of the connecting rod near one end of the locking shielding clamp seat, and the compression spring can continuously apply elastic force to the locking shielding clamp seat.

[0014] Preferably, the front and back of the door body are rotatably connected with opening and closing handles, and a transmission mechanism is provided on the back of the door body. When the opening and closing handles rotate, the transmission mechanism can drive the locking shielding clamp seat in the shielding locking assembly to open and close.

[0015] Preferably, the transmission mechanism includes an adjusting shaft, which is passed through the door body, a transmission shaft, which is movably mounted on the back of the door body, and a bevel gear set, which is arranged on the transmission shaft and is used to change the direction of power.

[0016] Preferably, a positioning mechanism is provided on the front of the door body at the position of the opening and closing handle, which is used to position the opening and closing handle after it is rotated into place.

[0017] Preferably, the positioning mechanism includes a positioning plate, which is fixedly mounted on the front end of the adjusting shaft, positioning arc-shaped protrusions, which are evenly distributed on the circumference of the positioning plate, a positioning seat, which is fixedly installed on the door body, and a positioning elastic clip, which is arranged on the inner wall of the positioning seat. When the positioning plate rotates, the positioning arc-shaped protrusions on its circumference can be sequentially engaged with the positioning elastic clip.

[0018] In the above technical scheme, the beneficial effect of the present invention is: by combining the shielding locking component with the arc-shaped spring and the arc-shaped blade, a complete shielding structure can be formed to achieve effective electromagnetic shielding of the connection position of the door body and the door frame. At the same time, a symmetrically openable and closing locking shielding clamp is provided in the shielding locking component. After the locking shielding clamp locks and clamps the locking shielding blade, it can have the effects of both the lock body and the shielding structure. After the locking shielding clamp expands outward to fully unlock the locking shielding blade, the resistance when the door body is opened can be greatly reduced. In addition, after the locking shielding clamp half-unlocks the locking shielding blade, the outer scraper and the inner scraper cooperate to clean the oxide layer at the contact position of the locking shielding clamp and the locking shielding blade when the door body is opened, ensuring that the two can achieve effective conductive contact, thereby ensuring the electromagnetic shielding effect.

[0019] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0020] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the structure of the present invention after overall assembly;

[0023] Figure 2 This is a schematic structural diagram of the back side of the door body of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the door body and door frame after they are unfolded;

[0025] Figure 4 It is a structural schematic diagram of the shielding and locking assembly of the present invention;

[0026] Figure 5 This is a structural diagram of the present invention after the locking shield clamp seat locks the locking shield insert;

[0027] Figure 6 This is a structural diagram of the present invention wherein the shield clamp seat is locked and the shield insert is fully unlocked;

[0028] Figure 7 This is a structural diagram of the present invention wherein the shield clamp seat is locked and the shield insert is partially unlocked;

[0029] Figure 8 It is a structural schematic diagram of the present invention when the locking shielding clamp seat and the locking shielding insert upper slag discharge channel are working;

[0030] Figure 9 This is a schematic structural diagram of the slag discharge groove on the arc-shaped spring leaf of the present invention;

[0031] Figure 10 It is a structural schematic diagram of the locking shielding clamp seat and the upper slag discharge channel of the locking shielding insert of the present invention;

[0032] Figure 11 This is a structural diagram of the installation position of the transmission mechanism of the present invention;

[0033] Figure 12 It is a schematic structural diagram of the entire transmission mechanism of the present invention;

[0034] Figure 13 For the present invention Figure 12 A schematic diagram of the structure enlarged at point A;

[0035] Figure 14 For the present invention Figure 12 A schematic diagram of the structure enlarged at B;

[0036] Figure 15 It is a structural schematic diagram of the positioning mechanism of the present invention.

[0037] Description of reference numerals:

[0038] In the figure: 1. Door body; 2. Door frame; 3. Shield locking mechanism; 31. Shield locking assembly; 311. Mounting base; 312. Locking shield clamp; 313. Locking shield blade; 314. Transmission bracket; 315. Connecting sleeve; 316. Connecting rod; 317. Compression spring; 318. External scraper; 319. Internal scraper; 3110. Bidirectional screw; 3111. Slag discharge channel; 32. Arc spring; 33. Arc blade;

[0039] 4. Transmission mechanism; 41. Adjustment shaft; 42. Active bevel gear; 43. Transverse transmission shaft; 44. Driven bevel gear 1; 45. Transmission bevel gear; 46. Longitudinal transmission shaft; 47. Driven bevel gear 2;

[0040] 5. Opening and closing handle;

[0041] 6. Positioning mechanism; 61. Positioning plate; 62. Positioning arc-shaped protrusion; 63. Positioning seat; 64. Positioning elastic clip. DETAILED DESCRIPTION

[0042] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0043] See also Figure 1-15 The embodiment of the present invention provides a technical solution: a darkroom shielded door lock structure, comprising a door frame 2 and a door body 1 hinged to the door frame 2, and further comprising: a shielded locking mechanism 3, which is arranged between the door body 1 and the door frame 2, and includes a shielded locking component 31 and an arc-shaped spring 32 arranged in combination;

[0044] The shield locking assembly 31 includes a locking shield blade 313, a locking shield clamp seat 312 located on both sides of the locking shield blade 313, and a driving assembly for driving the locking shield clamp seat 312 to move;

[0045] After the driving component drives the locking shielding clamp seat 312 to move and clamp the locking shielding blade 313, locking and conductive contact are achieved between the door body 1 and the door frame 2; the driving component drives the locking shielding clamp seat 312 to move and fully unlock the locking shielding blade 313 to reduce the resistance when the door body 1 is opened; when the driving component drives the locking shielding clamp seat 312 to half-unlock the locking shielding blade 313, the oxide layer at the contact position of the locking shielding clamp seat 312 and the locking shielding blade 313 can be cleaned when the door body 1 is opened.

[0046] The lock 31 is locked and unlocked when the door 1 is unlocked, and the lock 31 is unlocked when the door 1 is unlocked. After the locking shielding clamp seat 312 locks and clamps the locking shielding blade 313, it can have the effects of both the lock body and the shielding structure; after the locking shielding clamp seat 312 expands outward to fully unlock the locking shielding blade 313, only the arc-shaped blade 33 and the arc-shaped spring 32 are in the plugged state, which can greatly reduce the resistance when the door body 1 is opened; after the locking shielding clamp seat 312 semi-unlocks the locking shielding blade 313, the compression spring 317 applies elastic force to the locking shielding clamp seat 312, so that the locking shielding clamp seat 312 is pressed against the locking shielding blade 313, and the locking shielding blade 313 and the locking shielding clamp seat 312 move relative to each other, and the oxide layer on the side contact surface of the locking shielding blade 313 is cleaned by the inner scraping portion 319, and the oxide layer on the contact surface of the locking shielding clamp seat 312 is cleaned by the outer scraping portion 318, so that the two can achieve effective conductive contact.

[0047] Compared with the prior art, the embodiment of the present invention forms a complete shielding structure by combining the shielding locking component 31 with the arc-shaped spring leaf 32 and the arc-shaped blade 33, thereby achieving effective electromagnetic shielding of the connection position of the door body 1 and the door frame 2. At the same time, a symmetrically openable and closing locking shielding clamp seat 312 is provided in the shielding locking component 31. After the locking shielding clamp seat 312 locks and clamps the locking shielding blade 313, it can have the effects of both the lock body and the shielding structure. After the locking shielding clamp seat 312 expands outward to fully unlock the locking shielding blade 313, the resistance when the door body 1 is opened can be greatly reduced. In addition, after the locking shielding clamp seat 312 half-unlocks the locking shielding blade 313, the outer scraper 318 cooperates with the inner scraper 319 to clean the oxide layer at the contact position of the locking shielding clamp seat 312 and the locking shielding blade 313 when the door body 1 is opened, ensuring that the two can achieve effective conductive contact, thereby ensuring the electromagnetic shielding effect.

[0048] As the preferred technical solution of this embodiment, the shielding locking assembly 31 and the arc-shaped spring 32 are combined into a complete rectangular structure. There is conductive contact between the shielding locking assembly 31 and the arc-shaped spring 32. The shielding locking mechanism 3 also includes an arc-shaped blade 33, which is fixedly mounted on the door frame 2, and the arc-shaped blade 33 can be inserted into the arc-shaped spring 32. Specifically, the shielding locking assembly 31 and the arc-shaped spring 32 are both fixedly mounted on the back of the door body 1, and the arc-shaped spring 32 is located at the four corners of the back of the door body 1. The shielding locking assembly 31 is located between adjacent shielding locking assemblies 31. After the door body 1 is closed, the arc-shaped blade 33 is inserted into the arc-shaped spring 32, which can achieve electromagnetic shielding at the corner position where the door body 1 contacts the door frame 2.

[0049] When the cam 314 is unlocked, the latch 310 is unlocked and the latch 311 is in the unlock state, so that the cam 314 can be unlocked when the cam 314 is unlocked.

[0050] In another embodiment provided by the present invention, the locking shielding blade 313 and the locking shielding clamp seat 312 are provided with contact surfaces that cooperate with each other, and the locking shielding clamp seat 312 is provided with an inner scraping portion 319 for cleaning the oxide layer on the contact surface of the locking shielding blade 313. The locking shielding blade 313 is provided with an outer scraping portion 318 for cleaning the oxide layer on the contact surface of the locking shielding clamp seat 312. Specifically, the locking shielding blade 313 is inserted into the shield locking assembly 31, and after the two sets of locking shielding clamp seats 312 lock the locking shielding blade 313, the two are in conductive contact through the contact surface to achieve locking between the door body 1 and the door frame 2. Electromagnetic shielding; after the locking shielding clamp seat 312 semi-unlocks the locking shielding blade 313, the compression spring 317 applies elastic force to the locking shielding clamp seat 312, so that the locking shielding clamp seat 312 is pressed against the locking shielding blade 313. When the door body 1 is opened, the locking shielding blade 313 and the locking shielding clamp seat 312 move relative to each other, and the inner scraping portion 319 is pressed against the contact surface of the locking shielding blade 313. When moving, the oxide layer on the contact surface of the locking shielding blade 313 can be cleaned, and the outer scraping portion 318 is pressed against the contact surface of the locking shielding clamp seat 312. When moving, the oxide layer on the contact surface of the locking shielding clamp seat 312 can be cleaned.

[0051] It can be seen from the above embodiments that the oxide layer residues cleaned from the contact surfaces of the locking shield clamp 312 and the locking shield blade 313 by the outer scraper 318 and the inner scraper 319 will remain in the contact surfaces of the locking shield clamp 312 and the locking shield blade 313, especially the locking shield clamp 312 and the locking shield blade 313 in the horizontally arranged shield locking assembly 31. There is a problem that the oxide layer residues are difficult to discharge. In this regard, the following embodiments are proposed to solve this problem.

[0052] In another embodiment provided by the present invention, the vertically arranged shield locking assembly 31, the oxide layer residue cleaned out falls into the arc-shaped spring 32 at the corresponding position, and a slag discharge groove is provided at the bottom of the arc-shaped spring 32, so that the oxide layer residue in the vertical shield locking assembly 31 can be discharged; the locking shield clamp seat 312 in the horizontally arranged shield locking assembly 31 and the locking shield blade 313 below are both provided with uniformly distributed slag discharge channels 3111, the slag discharge channel 3111 on the locking shield clamp seat 312 below corresponds to the position of the inner scraper 319, and the slag discharge channel 3111 on the locking shield blade 313 The channel 3111 corresponds to the position of the outer scraping portion 318 above the locking shielding blade 313; when the door body 1 is opened, it drives the locking shielding blade 313 to move toward the exit position of the locking shielding clamp seat 312. When the locking shielding blade 313 moves, the upper and lower outer scraping portions 318 can push the oxide layer residue to move toward the exit position of the locking shielding clamp seat 312, and finally make the oxide layer residue above the locking shielding blade 313 be discharged along the slag discharge channel 3111 on the locking shielding blade 313, and the oxide layer residue below the locking shielding blade 313 be discharged along the slag discharge channel 3111 on the locking shielding clamp seat 312.

[0053] The cam 314 is a push-pull mechanism that is used to push the locking cam 312 away from the locking cam 313 and push the locking cam 313 away from the locking cam 313. The cam 314 is a push-pull mechanism that is used to push the locking cam 312 away from the locking cam 313 and push the locking cam 313 away from the locking cam 313. When the lock is unlocked, the lock 312 is unlocked, and the lock 312 is in a semi-unlocked state with respect to the lock shielding blade 313. The lock 312 is semi-unlocked with respect to the lock shielding blade 313 by the compression spring 317. The lock shielding clamp seat 312 is applied with elastic force by the compression spring 317 to make the lock shielding clamp seat 312 rest against the lock shielding blade 313, which is convenient for cleaning the oxide layer of the contact surface laterally. The driving assembly also includes a bidirectional screw 3110, which is arranged on the side of the mounting seat 311 close to the door body 1, and the bidirectional screw 3110 is provided with threads that cooperate with the two sets of transmission brackets 314 and rotate counter-rotating to each other. The directions of the threads at both ends of the bidirectional screw 3110 are based on ensuring that the lock shielding clamp seats 312 in the four sets of shielding locking assemblies 31 can move synchronously inward or outward.

[0054] In another embodiment provided by the present invention, a compression spring 317 is movably mounted on the outside of the connecting rod 316 near one end of the locking shield clamp seat 312, and the compression spring 317 can continuously apply elastic force to the locking shield clamp seat 312. Specifically, after the locking shield clamp seat 312 semi-unlocks the locking shield blade 313, the compression spring 317 applies elastic force to the locking shield clamp seat 312, so that the locking shield clamp seat 312 is pressed against the locking shield blade 313. When the door body 1 is opened, the locking shield blade 313 and the locking shield clamp seat 312 move relative to each other, and the oxide layer on the contact surface of the locking shield clamp seat 312 and the locking shield blade 313 can be cleaned by the outer scraper 318 and the inner scraper 319.

[0055] In another embodiment provided by the present invention, the front and back sides of the door body 1 are rotatably connected with opening and closing handles 5, and a transmission mechanism 4 is provided on the back side of the door body 1. When the opening and closing handles 5 rotate, the transmission mechanism 4 can drive the locking shielding clamp seat 312 in the shielding locking assembly 31 to open and close. Specifically, the opening and closing handles 5 can drive the locking shielding clamp seat 312 in the four groups of shielding locking assemblies 31 to open and close on both the inside and outside of the door body 1, thereby realizing the opening and closing of the door body 1, and the structure is simple and reliable.

[0056] In one embodiment provided by the present invention, the transmission mechanism 4 includes an adjusting shaft 41, which is passed through the door body 1, a transmission shaft, which is movably mounted on the back of the door body 1, and a bevel gear set, which is arranged on the transmission shaft for changing the direction of power. Specifically, the adjusting shaft 41 is made of non-metallic material, preferably polyamide, to avoid the presence of conductors running through the inside and outside of the door body 1 to damage the electromagnetic shielding effect. Two sets of opening and closing handles 5 are respectively fixedly mounted on the front and rear ends of the adjusting shaft 41; the transmission shaft includes a horizontal transmission shaft 43 that is laterally movably mounted on the back of the door body 1, and both ends of the horizontal transmission shaft 43 are fixedly connected to the two sets of bidirectional screws 3110 in the vertical shielding locking assemblies 31. The transmission shaft also includes a longitudinal transmission shaft 46 located on the upper and lower sides of the horizontal transmission shaft 43 and vertically movably mounted on the back of the door body 1. The two sets of longitudinal transmission shafts 46 are respectively connected to the horizontal transmission shaft 43. The bidirectional screws 3110 in the two sets of shield locking assemblies 31 are fixedly connected; the bevel gear set includes an active bevel gear 42, which is fixedly sleeved on the rear end of the adjusting shaft 41, a driven bevel gear 1 44, which is fixedly sleeved on the transverse transmission shaft 43 and meshed with the active bevel gear 42, a driven bevel gear 2 47, which is fixedly sleeved on the end of the longitudinal transmission shaft 46 away from the shield locking assembly 31, and a transmission bevel gear 45, which is fixedly sleeved on the transverse transmission shaft 43 and meshed with the driven bevel gear 2 47; when the opening and closing handle 5 drives the adjusting shaft 41 to rotate, the active bevel gear 42, the transverse transmission shaft 43, the transmission bevel gear 45 and the driven bevel gear 2 47 are rotated, which can synchronously drive the transverse transmission shaft 43 and the longitudinal transmission shaft 46 to rotate, and then drive the bidirectional screw 3110 to rotate, so as to adjust the position of the locking shield clamp 312.

[0057] It can be seen from the above embodiments that the locking shielding clamp seat 312 has three working states for the locking shielding blade 313, namely locked, fully unlocked and half unlocked. Therefore, the locking shielding clamp seat 312 needs to be stably positioned after each position adjustment to ensure the stable working state of the locking shielding clamp seat 312 after adjustment. In this regard, the following embodiments are proposed to solve this problem.

[0058] In one embodiment provided by the present invention, a positioning mechanism 6 is provided on the front of the door body 1 at the position of the opening and closing handle 5, which is used to position the opening and closing handle 5 after it is rotated into position. Specifically, since the locking shielding clamp seat 312 has three working states for the locking shielding blade 313, namely locked, fully unlocked and semi-unlocked states, the opening and closing handle 5 can cooperate with the positioning arc-shaped protrusions 62 at different positions through the positioning elastic clip 64 when driving the adjustment shaft 41 to rotate, so as to realize the locking of the opening and closing handle 5 and then the locking shielding clamp seat 312 after adjustment to different states.

[0059] In another embodiment provided by the present invention, the positioning mechanism 6 includes a positioning disk 61, which is fixedly mounted on the front end of the adjusting shaft 41, positioning arc-shaped protrusions 62, which are evenly distributed on the circumference of the positioning disk 61, a positioning seat 63, which is fixedly installed on the door body 1, and a positioning elastic clip 64, which is arranged on the inner wall of the positioning seat 63. When the positioning disk 61 rotates, the positioning arc-shaped protrusions 62 on its circumference can be sequentially engaged with the positioning elastic clip 64. Specifically, the positioning disk 61 is located on the central axis of the adjusting shaft 41, and the number of the positioning arc-shaped protrusions 62 is three groups. The three groups of positioning arc-shaped protrusions 62 cooperate with the positioning elastic clips 64 to respectively realize the locking of the three adjusted positions of the locking shielding clamp seat 312: locked, fully unlocked, and half unlocked. The positioning seat 63 is located on the central axis of the adjusting shaft 41, ensuring that the positioning elastic clip 64 on the inner wall of the positioning seat 63 can stably cooperate with multiple positioning arc-shaped protrusions 62.

[0060] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A darkroom shielding door lock structure, comprising a door frame (2) and a door body (1) hinged to the door frame (2), characterized in that: Also includes: A shielding locking mechanism (3) is arranged between the door body (1) and the door frame (2), comprising a shielding locking component (31) and an arc-shaped spring (32) arranged in combination; The shield locking assembly (31) comprises a locking shield insert (313), a locking shield clamp seat (312) located on both sides of the locking shield insert (313), and a driving assembly for driving the locking shield clamp seat (312) to move; After the driving component drives the locking shield clamp seat (312) to move and clamps the locking shield blade (313), locking and conductive contact are achieved between the door body (1) and the door frame (2); the driving component drives the locking shield clamp seat (312) to move and fully unlocks the locking shield blade (313), thereby reducing the resistance when the door body (1) is opened; when the driving component drives the locking shield clamp seat (312) to half-unlock the locking shield blade (313), the oxide layer at the contact position between the locking shield clamp seat (312) and the locking shield blade (313) can be cleaned when the door body (1) is opened; The shielding locking assembly (31) and the arc-shaped spring (32) are combined into a complete rectangular structure, and there is conductive contact between the shielding locking assembly (31) and the arc-shaped spring (32). The shielding locking mechanism (3) also includes an arc-shaped insert (33), which is fixedly mounted on the door frame (2), and the arc-shaped insert (33) can be inserted into the arc-shaped spring (32); The locking shielding blade (313) and the locking shielding clamp seat (312) are provided with contact surfaces that cooperate with each other, the locking shielding clamp seat (312) is provided with an inner scraping portion (319) for cleaning the oxide layer on the contact surface of the locking shielding blade (313), and the locking shielding blade (313) is provided with an outer scraping portion (318) for cleaning the oxide layer on the contact surface of the locking shielding clamp seat (312); The driving assembly includes a transmission bracket (314) and a connecting sleeve (315), the connecting sleeve (315) and the transmission bracket (314) are fixedly connected, a connecting rod (316) is movably sleeved in the connecting sleeve (315), the connecting rod (316) is fixedly connected to the locking shielding clamp seat (312), and a compression spring (317) is movably sleeved outside the connecting rod (316); The compression spring (317) is movably sleeved on the outside of the connecting rod (316) near one end of the locking shielding clamp seat (312), and the compression spring (317) can continuously apply elastic force to the locking shielding clamp seat (312).

2. The darkroom shielded door lock structure according to claim 1, characterized in that: The shield locking assembly (31) further comprises a mounting seat (311) fixedly mounted on the back of the door body (1); the locking shield clamp seat (312) is symmetrically arranged inside the mounting seat (311); the locking shield insert (313) is fixedly mounted on the front of the door frame (2); and the driving assembly is movably mounted on the mounting seat (311).

3. The darkroom shielded door lock structure according to claim 1, characterized in that: The front and back sides of the door body (1) are both rotatably connected to an opening and closing handle (5), and a transmission mechanism (4) is provided on the back side of the door body (1). When the opening and closing handle (5) is rotated, the transmission mechanism (4) drives the locking shielding clamp seat (312) in the shielding locking assembly (31) to open and close.

4. The darkroom shielded door lock structure according to claim 3, characterized in that: The transmission mechanism (4) includes an adjusting shaft (41) which is passed through the door body (1), a transmission shaft which is movably mounted on the back of the door body (1), and a bevel gear set which is arranged on the transmission shaft and is used to change the direction of power.

5. The darkroom shielded door lock structure according to claim 4, characterized in that: The front of the door body (1) is provided with a positioning mechanism (6) located at the position of the opening and closing handle (5), which is used to position the opening and closing handle (5) after it is rotated into position.

6. The darkroom shielded door lock structure according to claim 5, characterized in that: The positioning mechanism (6) includes a positioning disk (61) fixedly mounted on the front end of the adjusting shaft (41), positioning arc-shaped protrusions (62) uniformly distributed around the circumference of the positioning disk (61), a positioning seat (63) fixedly mounted on the door body (1), and a positioning elastic clip (64) arranged on the inner wall of the positioning seat (63). When the positioning disk (61) rotates, the positioning arc-shaped protrusions (62) on the circumference thereof can be sequentially engaged with the positioning elastic clip (64).

Images