CN214091437U

CN214091437U - Automatic locking type side door main lock

Info

Publication number: CN214091437U
Application number: CN202022223899.7U
Authority: CN
Inventors: 姜绪博; 秦思刚; 臧文龙; 陈凯; 黄磊唐; 张王翰廷
Original assignee: Qingdao Hongyuji Track Traffic Equipment Co ltd
Current assignee: Qingdao Hongyuji Track Traffic Equipment Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-08-31
Anticipated expiration: 2030-09-30

Abstract

The utility model provides an automatic go up locking-type side door master lock, constitute, lock the constitution from top to bottom, well lock fore shaft is constituteed, lock trigger block and connecting rod from top to bottom including inboard lock. The inner lock assembly and the upper and lower lock assemblies are fixedly arranged on the inner side of the door panel, and the outer lock assembly is fixedly arranged on the outer side of the door panel; the middle lock mouth assembly and the upper and lower lock trigger blocks are fixedly arranged on the door frame. The outer side lock assembly is connected with the inner side lock assembly, transmission square steel is arranged between the outer side lock assembly and the inner side lock assembly and is connected with the handle at the inner side of the door and the torsion of the sliding block, the upper end and the lower end of the inner side lock assembly are respectively connected with the upper connecting rod and the lower connecting rod, the other ends of the two connecting rods are respectively connected with the upper lock assembly and the lower lock assembly, and the upper guide piece is arranged on the upper connecting rod. The automatic locking type side door main lock can automatically perform secondary locking, and transmits a trigger signal to a driver driving operation panel to display the state of a door lock, so that the personal safety of a driver is guaranteed, and the safe operation of a train can be ensured.

Description

Automatic locking type side door main lock

Technical Field

The utility model belongs to the lock field, concretely relates to automatic locking type side door master lock.

Background

In the subway train, the train cab side door is mainly used for a cab cabin, can realize physical, heat and sound isolation with the external environment, and more importantly, guarantees the personal safety of a train driver so as to guarantee the safety of the whole train. The side door of the cab is a door through which a driver needs to pass when getting in and out of a train, so that the safety and reliability of the main lock of the side door of the cab are very important, and the side door of the cab is not opened timely, so that the side door of the cab can cause great influence on the operation efficiency of drivers and passengers and subways. The main lock of the side door of the cab is a key component of the cab door and generally comprises a primary locking part and a secondary locking part, wherein the primary locking part is triggered after the door is closed, and the secondary locking part needs to be manually locked again. Drivers often forget to carry out secondary locking in the running process of the train, so that great potential safety hazards exist in the running process of the train, and the safety of the drivers cannot be guaranteed. In order to confirm whether the secondary locking is effectively carried out each time, a driver is required to continuously walk to the door lock to confirm the opening and closing state of the door lock through the indication on the lock, so that the time and the energy of the driver are wasted, and particularly when a train runs, the confusion of the driver about whether the door lock of a cab is locked can seriously influence the safe running of the train.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists among the above-mentioned background art, the utility model provides an automatic go up locking-type side door owner lock, this lock can carry out the second grade locking automatically to transmit trigger signal to driver's driving operation panel and show the lock state, both ensured driver personal safety, can ensure train safe operation again.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

the utility model provides an automatic go up locking-type side door master lock, include:

an inner lock assembly (1) comprising:

an inner lock upper part (101) comprising an inner lock upper cover (107) and an inner lock upper cover plate (118) connected thereto; and the number of the first and second groups,

the middle lock bolt (12) is arranged in the upper cover body (107) of the inner lock, the bolt end of the middle lock bolt extends out of the upper cover body (107) of the inner lock, and the tail end of the middle lock bolt is connected with a spring C (117);

one end of the shifting block (111) is connected with the tail part of the middle lock bolt (12), and the other end of the shifting block is connected with the polyformaldehyde block (112); the polyformaldehyde block (112) is connected with a spring B (116);

one end of the control block (110) is connected with the tail part of the shifting block (111) and the middle lock bolt (12), and the other end of the control block is connected with the gear A (108);

the safety lock tongue (13) is arranged in the upper cover body (107) of the inner side lock, the lock tongue end of the safety lock tongue extends out of the upper cover body (107) of the inner side lock, and the tail end of the safety lock tongue penetrates through a safety lock tongue limiting block (131) to be connected with a gear A (108); the gear A (108) is also connected with a gear B (109) and a spring A (115) respectively; the spring A (115) is fixed on the cylinder (113), and a torsional spring limiting sleeve (114) is arranged on the cylinder (113);

the handle (103) is arranged outside the upper cover body (107) of the inner side lock and is connected with the shifting block (111) through a rotating shaft;

a safety knob (104) which is mounted outside the inner lock upper cover body (107) and is connected with the gear B (109) through a rotating shaft;

an inner lock lower part (102) connected with the inner lock upper part (101), comprising an inner lock lower cover body (120) and an inner lock lower cover plate (119) connected with the inner lock lower cover body in a sealing way;

the outer side lock assembly (2) is connected with the inner side lock assembly (1) through a fixing piece and comprises an outer side lock cover body (201) and

a sliding block (206) which is arranged in the middle of the outer lock cover body (201), and two sides of the sliding block are connected with sliding strips (217);

the sliding handle push block (205) is arranged above the sliding block (206), and two sides of the sliding handle push block are connected with the sliding strip (217) through sliding cylindrical pins;

the cross lock cylinder (212) is arranged on the outer lock cover body (201), a water baffle (214) fixed on the outer lock cover body (201) is arranged outside the lock cylinder end, and a rotary stop iron (216) is arranged outside the tail end of the lock cylinder end; a wave washer (215) for increasing the sealing property is arranged between the rotary stop iron (216) and the outer lock cover body (201);

one end of the rotating push rod (207) is installed outside the plastic sleeve (210) below the cross lock cylinder (212), the other end of the rotating push rod is matched with the pressing position of the sliding block (206), and the rotating push rod (207) can rotate by pressing the sliding block (206);

two transmission square steels (106) are arranged, one end of one transmission square steel (106) is connected with a rotating shaft of the handle (103) through the shifting block (111), and the other end of the transmission square steel passes through the inner lock lower cover body (120), is installed in the plastic sleeve (210), and is connected with the rotating push rod (207); one end of the other transmission square steel (106) is connected with a rotating shaft of the safety knob (104) through the gear B (109), and the other end of the other transmission square steel passes through the inner side lock lower cover body (120) to be connected with the tail end of the cross lock cylinder (212);

the upper and lower lock assembly (3) comprises an upper and lower lock cover body (301) and an upper and lower lock cover plate (302) connected with the upper and lower lock cover body; and the number of the first and second groups,

the upper and lower lock bolts (11) are arranged in the upper and lower lock cover bodies (301), the bolt ends of the upper and lower lock bolts extend out of the upper and lower lock cover bodies (301), and the tail ends of the upper and lower lock bolts are connected with upper and lower lock cover body springs (306) fixed on the upper and lower lock cover bodies (301);

the lower lock bolt baffle (305) is arranged outside the upper lock bolt and the lower lock bolt (11), is connected with the upper lock cover body and the lower lock cover body (301), and is used for protecting the upper lock bolt and the lower lock bolt (11);

one end of the gasket (304) is arranged on the upper and lower lock cover bodies (301) and is connected with one end of the connecting block (303), and the other end of the gasket is connected with the upper and lower lock bolts (11);

the middle lock port assembly (5) comprises a middle lock port cover body (501), a middle lock port cover plate (502) connected with the middle lock port cover body and a three-way valve (503) arranged in the middle lock port cover body (501);

and one end of the connecting rod is connected with the transmission square steel (106), and the other end of the connecting rod is connected with the other end of the connecting block (303).

Furthermore, the main lock of the automatic locking type side door further comprises an upper lock trigger block and a lower lock trigger block (8), and the upper lock trigger block and the lower lock trigger block are installed on a door frame of the side door of the cab.

Further, the inner side lock assembly (1) and the upper and lower lock assemblies (3) are arranged on the inner side of the door panel of the cab side door, and the outer side lock assembly (2) is arranged on the outer side of the door panel of the cab side door; the middle lock mouth assembly (5) is installed on a door frame of a side door of the cab.

Furthermore, the mounting position of the outer side lock assembly (2) is matched with the inner side lock assembly (1), and the mounting position of the middle lock mouth assembly (5) is matched with the middle lock bolt (12); the mounting positions of the upper and lower lock trigger blocks (8) are matched with the lock tongues (11) of the upper and lower locks.

Further, the connecting rod is divided into an upper connecting rod (6) and a lower connecting rod (7); and an upper guide part (4) is arranged on the upper connecting rod (6) and is used for assisting the installation of the main lock of the side door.

Further, the diameter of the gear a (108) is larger than the diameter of the gear B (109).

Furthermore, the spring, the gear, the cylinder (113), the polyformaldehyde block (112) and the safety bolt limiting block (131) are all fixed in the upper cover body (107) of the inner side lock.

Furthermore, a torsion spring (209) is also arranged on the rotating push rod (207), so that the rotating push rod (207) can be tightly attached to the sliding block (206).

Furthermore, two baffle plates are longitudinally arranged on the inner side of the outer lock cover body (201); the two baffle plates are connected through a fixing piece.

Further, the upper end of the water baffle (214) is provided with a water baffle cover (202) for preventing the cross lock cylinder (212) from water.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

automatic go up locking-type side door owner lock and can accomplish the second grade locking automatically, and can trigger automatically after the side door closes that the insurance spring bolt locking need not manual locking, can trigger micro-gap switch simultaneously and realize that driver control panel in time shows the lock locking state, greatly improved the security, the convenience in use of lock to can effectively prevent that the driver from forgetting the dangerous emergence of locking lock.

Drawings

FIG. 1: the three-dimensional structure schematic diagram of the automatic locking type side door main lock;

FIG. 2: the inside lock surface structure schematic diagram of the automatic locking type side door main lock;

FIG. 3: the structure schematic diagram of the outer side lock surface of the automatic locking type side door main lock is shown;

FIG. 4: the structure schematic diagram of the inner side lock assembly;

FIG. 5: the internal structure of the upper part of the inner lock is schematic;

FIG. 6: the upper cover plate surface structure schematic diagram of the inner lock at the upper part of the inner lock;

FIG. 7: the structure of the lower cover plate of the inner lock at the upper part of the inner lock is schematic;

FIG. 8: the lower part of the inner side lock is in a schematic structure view;

FIG. 9: the structure schematic diagram of the outside lock assembly;

FIG. 10: the inner structure schematic diagram of the outer side lock assembly;

FIG. 11: the side section structure schematic diagram of the outside lock assembly, wherein the area A is the section structure schematic diagram of the cross lock core;

FIG. 12: the structure schematic diagram of the upper lock and the lower lock;

FIG. 13: the internal structure schematic diagram of the upper lock and the lower lock;

FIG. 14: the cross section structure schematic diagram of the upper lock and the lower lock;

FIG. 15: the internal structure schematic diagram of well lock fore shaft is constituteed.

Wherein: 1. an inner lock assembly; 2. an outer lock assembly; 3. an upper lock and a lower lock; 4. an upper guide; 5. a middle lock opening; 6. an upper connecting rod; 7. a lower connecting rod; 8. an up-down lock trigger block; 9. a cotter pin; 10. a saddle-shaped resilient washer; 11. locking bolts are locked up and down; 12. a middle lock bolt; 13. a safety bolt; 14. a screw; 15. a gasket; 16. a nut;

101. an inner lock upper part; 102. the lower part of the inner lock; 103. a handle; 104. a safety knob; 105. connecting a sleeve; 106. square transmission steel; 107. an inner lock upper cover; 108. a gear A; 109. a gear B; 110. a control block; 111. shifting blocks; 112. a polyoxymethylene block; 113. a cylinder; 114. a torsion spring limiting sleeve; 115. a spring A; 116. a spring B; 117. a spring C; 118. an inner lock upper cover plate; 119. the lower cover plate is locked at the inner side; 120. the lower cover body is locked at the inner side; 131. a safety lock bolt limiting block;

201. an outer lock cover body; 202. a water baffle cover; 203. a baffle A; 204. a baffle B; 205. sliding the handle push block; 206. a slider; 207. rotating the push rod; 208. connecting the nut block; 209. a torsion spring; 210. a plastic sheath; 211. connecting the lengthening block; 212. a cross lock cylinder; 213. a gasket; 214. a water baffle; 215. a wave washer; 216. rotating the stop iron; 217. a slide bar; 218. an aluminum plate; 219. sliding the cylindrical pin;

301. locking cover plates up and down; 302. an upper lock cover body and a lower lock cover body; 303. connecting blocks; 304. a gasket; 305. locking the bolt baffle up and down; 306. an upper and lower lock cover body spring;

501. a middle lock fore shaft cover body; 502. a middle lock fore shaft cover plate; 503. and a three-way valve.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the following specific embodiments. The technical solution of the present invention will be further described in detail with reference to the following specific embodiments. It is noted that terms such as a and B, and the like, in the present disclosure are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. The entities of the structure not described in detail in the present invention are all commercially available products.

As used herein, the terms "self-locking side door master lock" or "side door master lock" are used interchangeably to refer to a self-locking side door master lock as described herein.

Example 1

An automatic locking type side door main lock structurally refers to the figures 1-3 and comprises an inner side lock assembly 1, an outer side lock assembly 2, an upper lock assembly 3, a lower lock assembly 3, a middle lock opening assembly 5, an upper lock trigger block 8, a lower lock trigger block 8 and a connecting rod.

The inner side lock assembly 1 and the upper and lower lock assembly 3 are respectively arranged on the inner side of the cab door; the outer side lock assembly 2 is arranged on the outer side of the cab door through a connecting nut; the middle lock mouth assembly 5 and the upper and lower lock trigger block 8 are installed on the door frame of the cab door. Wherein, the mounting position of the outer lock assembly 2 is matched with the inner lock assembly 1 and the two are connected; the mounting position of the middle lock mouth assembly 5 is matched with the middle lock bolt 12 on the inner side lock assembly 1; the mounting position of the upper and lower lock trigger block 8 is matched with the upper and lower lock bolts 11 on the upper and lower lock assembly 3.

Referring to fig. 1-3, the inner lock assembly 1 is provided with a screw hole, which can be connected with the connecting nut on the outer lock assembly 2 through a screw; the upper end and the lower end of the inner side lock assembly 1 are respectively and tightly connected with an upper connecting rod 6 and a lower connecting rod 7 through a cotter pin 9 and a saddle-shaped elastic washer 10; the other ends of the two connecting rods are respectively connected with the upper lock assembly 3 and the lower lock assembly 3 through connecting blocks 303. The upper connecting rod 6 is provided with an upper guide 4 for assisting in mounting a main lock of the side door. When the main lock of the side door is closed, the upper lock and the lower lock assembly 3 are connected with the upper lock and the lower lock trigger block 8 through the upper lock bolt and the lower lock bolt 11; the inner side lock assembly 1 is connected with the middle lock mouth assembly 5 through a middle lock bolt 12.

Referring to fig. 4-6, the inside lock assembly 1 includes an inside lock upper portion 101 and an inside lock lower portion 102; the inner lock upper part 101 and the inner lock lower part 102 are connected by means of screws and nuts.

The inside lock upper 101 includes an inside lock upper cover 107 and an inside lock upper cover 118, which are fixed by screws. The middle lock bolt 12 is installed in the inner lock upper cover 107, the bolt end of the middle lock bolt extends out of the inner lock upper cover 107, and the tail end of the middle lock bolt is connected with a spring C117. One end of the shifting block 111 is connected with the tail part of the middle lock bolt 12, the other end is connected with the polyformaldehyde block 112, and the end is also matched with a bulge on the upper cover body 107 of the inner side lock, and the bulge is used for assisting the rotation of the shifting block 111. The polyoxymethylene block 112 is attached to a spring B116. The control block 110 is L-shaped, and one end of the control block is connected with the shifting block 111 and the tail of the middle lock bolt 12, and the other end of the control block is provided with a notch which is connected with a shifting column on the gear A108. One side of the gear A108 is meshed with two gears B109 which are meshed with each other, and the other corresponding side of the gear A is connected with one end of a spring A115; the other end of the spring A115 is fixed on the column 113; the cylinder 113 is provided with a torsion spring stop collar 114. Wherein the diameter of gear a 108 is larger than the diameter of gear B109. The safety bolt 13 is arranged in the upper cover body 107 of the inner lock, and the bolt end of the safety bolt extends out of the upper cover body 107 of the inner lock and is at the same side as the bolt 12 of the middle lock; the tail end of the safety lock bolt is provided with a notch which passes through a safety lock bolt limiting block 131 and is connected with another toggle column on the gear A108; the safety bolt limiting block 131 is fixed in the upper cover body 107 of the inner lock through a fixing piece; the groove part in the groove at the tail end of the safety lock tongue 13 can realize self-locking after the safety lock tongue 13 extends out, and prevent the safety lock tongue from being reset by external force in a locking state. The spring, gear, polyoxymethylene block 112, cylinder 113 and safety catch stop 131 are all fixed within the inside lock upper cover 107.

The handle 103 and the safety knob 104 are both arranged on the outer side of the inner lock upper cover body 107, and a rotating shaft of the handle 103 penetrates through the inner lock upper cover body 107 to be connected with the center of the shifting block 111; the rotation shaft of the safety knob 104 passes through the inner lock upper cover 107 and is connected to the center of the gear B109.

Referring to fig. 7-8, inner lock lower portion 102 includes an inner lock lower cover 120 and an inner lock lower cover 119; the inner lock lower cover 119 is sealingly connected to the inner lock lower cover 120 by a gasket and screws. The inner lock upper cover plate 118 is connected to the inner lock lower cover plate 119 by means of screws and nuts so that the inner lock upper part 101 and the inner lock lower part 102 are fixed together.

Referring to fig. 9-11, the outside lock assembly 2 includes an outside lock cover body 201, a sliding handle set, a cross lock cylinder 212, and a rotary push rod 207. The sliding handle set comprises a sliding handle push block 205, a sliding block 206, a sliding bar 217, an aluminum plate 218 and a sliding cylindrical pin 219.

Two baffles are longitudinally arranged on the inner side of the outer lock cover body 201, and the baffle A203 and the baffle B204 are connected through screws; the baffles may be used to secure or connect other components within the outer lock cover 201 and to allow sufficient space for the sliding handle push block 205 and sliding block 206 to move. The sliding block 206 is installed in the middle of the outer lock cover 201, and the aluminum plate 218 is installed on the back plate, so that the service life of the sliding block 206 can be prolonged. The sliding handle push block 205 is mounted above the sliding block 206. The sliding block 206 and the sliding handle push block 205 are respectively provided with 4 sliding bars 217 at two longitudinal sides, the upper two sliding bars 217 are connected with the sliding handle push block 205 through a sliding cylindrical pin 219, and the lower sliding bar 217 is connected with the sliding block 206 for realizing the pushing of the sliding handle push block 205 and the pressing action of the sliding block 206.

Referring to fig. 11, a cross lock cylinder 212 is mounted on the outer lock cover body 201, and a water baffle 214 is arranged outside the lock cylinder end; the tail end of the rotary stop iron 216 is externally arranged and is connected with the baffle plate 203 through the transmission square steel 106 (thin). The water baffle 214 is hermetically fixed on the outer lock cover body 201 through the screw 14, the gasket 15 and the gasket 213; the splash plate cover 202 is installed at the upper end of the splash plate 214 to waterproof the cross lock cylinder 212. A wave washer 215 is disposed between the turning stop 216 and the outer lock cover 201 to increase the sealing performance of the cross lock cylinder 212. A plastic sleeve 210 is mounted below the cross-shaped lock cylinder 212. The rotating push rod 207 is in a V shape, and one end of the rotating push rod is arranged outside the plastic sleeve 210; the other end is matched with the pressing position of the sliding block 206, so that the rotation of the rotating push rod 207 can be realized by pressing the sliding block 206, and a torsion spring 209 is further installed on the end of the rotating push rod 207, so that the rotating push rod 207 is tightly attached to the sliding block 206. At the bottom end of the back plate 204 is mounted a coupling nut block 208, the nut end being adapted to couple with a screw on the inner lock lower portion 102 to secure the inner and outer locks.

The number of the transmission square steels 106 is two, namely, the transmission square steel 106 (thick) and the transmission square steel 106 (thin). One end of the (thick) transmission square steel 106 is connected with a rotating shaft of the handle 103 through a shifting block 111, and the other end of the transmission square steel passes through the lower cover body 120 of the inner lock, is arranged in the plastic sleeve 210 and is connected with a rotating push rod 207; one end of the transmission square steel 106 (thin) is connected with the rotating shaft of the safety knob 104 through a gear B109, and the other end of the transmission square steel passes through the lower cover body 120 of the inner lock and is connected with the tail end of the cross lock cylinder 212. In order to increase the stability of the driving square steel 106, the driving square steel is fixed on the inner lock lower cover plate 119 through a fixing piece, but the fixing piece is only used for increasing the stability of the driving square steel 106 and does not influence the rotation of the driving square steel 106 after being stressed. The transmission square steel 106 plays a role in power transmission of the inside and outside lock, and the handle 103 and the sliding block 206 can realize the opening and the locking of three lock tongues of the lock through the transmission square steel 106 (thick); the safety knob 104 and the cross lock cylinder 212 can realize the unlocking and locking of the safety lock through the transmission square steel 106 (thin).

Referring to fig. 12-14, the up-down lock assembly 3 includes an up-down lock cover plate 301, an up-down lock cover 302, a connection block 303, a spacer 304, an up-down lock deadbolt guard 305, and an up-down lock cover spring 306.

The up-down lock cover plate 301 and the up-down lock cover body 302 are fixedly connected by screws. The up-down lock bolt 11 is installed in the middle position of the up-down lock cover body 302, the bolt end extends out of the up-down lock cover body 302, the tail end is connected with the up-down lock cover body spring 306 fixed on the up-down lock cover body 302, the up-down lock bolt 11 extends out and retracts, and a notch is arranged on the tail end of the up-down lock bolt 11. The upper and lower lock bolts 11 are also provided with a lower lock bolt guard 305 for protecting the upper and lower lock bolts 11, and the guard is connected with the upper and lower lock cover 302 through screws. The gasket 304 is L-shaped, and one end of the gasket is arranged on the upper and lower lock cover bodies 302 and is connected with one end of the connecting block 303; the other end is provided with a toggle column which is connected with a notch at the tail end of the lock tongue 11 of the upper lock and the lower lock. The other end of the connecting block 303 is connected with one end of the upper connecting rod 6 or the lower connecting rod 7, and the connecting block 303 also has the function of adjusting the distance of the connecting rods. The other ends of the upper connecting rod 6 and the lower connecting rod 7 are respectively connected with the transmission square steel 106 (thick) through the inner lock lower cover body 120. When opening cab side door lock, rotate hand (hold) 103, drive transmission square steel 106 (thick) and take place to rotate to the connecting rod of drive connection on transmission square steel 106 (thick) takes place the displacement, and then drives connecting block 303 and the gasket 304 motion of connection on connecting block 303, then drives lock spring bolt 304 and realizes the withdrawal from top to bottom.

Referring to fig. 15, the middle latch assembly 5 includes a middle latch cover 501, a middle latch cover plate 502, and a three-way valve 503. The middle lock fore shaft cover 501 is installed on the door frame through a fixing piece; the three-way valve 503 is installed in the middle locking port cover 501 through screws, and is provided with a locking rod, an air inlet pipe and an air outlet pipe; the central locking notch cover plate 502 is connected to the three-way valve 503 by screws and has openings matching the three-way valve 503.

Because of having between the door frame of driver's cabin door and cab side door and aerifing the sealing adhesive tape, when side door owner lock was closed, well lock spring bolt 12 stretched into well lock fore shaft and constitutes 5, and well lock spring bolt 12 can push the locking lever on the intraoral three-way valve 503 of locking simultaneously, makes the locking lever move backward, realizes three-way valve 503's intake pipe and outlet duct switch-on, and the intake pipe can be aerifyd for aerifing the adhesive tape this moment with the switch-on of the adhesive tape of door frame, realizes the sealed of door. When the main lock of the side door is opened, the middle lock bolt 12 is retracted, the three-way valve 503 is reset, the inflation tube is connected with the air outlet tube and disconnected, and at the moment, the inflation rubber strip discharges gas through the air outlet tube, so that the cab door can be conveniently opened.

When the door lock of the side door of the cab is closed, the middle lock bolt 12 collides with the middle lock notch assembly 5 arranged on the door frame, and the middle lock bolt 12 automatically retracts and then slides into the middle lock notch assembly 5. In the process, when the middle lock bolt 12 retracts due to collision, the control block 110 can be triggered to displace and drive the gear a 108 to rotate, when the gear a 108 drives the spring a 115 to rotate, the spring a 115 generates reverse acting force and is converted into pushing the gear a 108 to rotate clockwise, at the moment, the gear a 108 is pushed to drive the control block 110 to move to be attached to the shifting block 111, and the shifting block 111 is limited by the bulge on the upper cover body 107 of the inner side lock, so that the shifting block 111 is prevented from rotating; because the shifting block 111 is connected with the handle 103 and the transmission square steel 106 (thick), when the shifting block 111 is limited, the handle 103 and the transmission square steel 106 (thick) are simultaneously limited, and the sliding block 206 and the connecting rod of the outer side lock are simultaneously limited, at this moment, the inner side cannot be unlocked by pressing the handle 103, the outer side cannot be unlocked by pressing the sliding block 206, and the door lock realizes safety locking; meanwhile, the gear A108 drives the safety lock tongue 13 to extend out, a microswitch on a door frame is triggered, and a control panel of the cab displays that the door lock is in a locking state.

When a door lock of a side door of a cab is opened at the inner side, the safety knob 104 at the inner side of the door is firstly opened, the gear B109 connected with the safety knob is driven to rotate, the gear B109 drives the gear A108 to rotate anticlockwise, the control block 110 is further driven to displace, the control block 110 is separated from the shifting block 111, and the limit locking of the control block 110 on the shifting block 111 is released; at this time, the handle 103 is pressed to rotate the shift block 111, the shift block 111 pushes the middle lock bolt 12 to retract, and simultaneously drives the connecting rod on the transmission square steel 106 (thick), so that the upper lock bolt 11 and the lower lock bolt 11 retract, and simultaneously the gear a 108 drives the safety bolt 13 to retract, and at this time, the control panel of the cab displays that the door lock is in an unlocked state.

When a door lock of a side door of a cab is opened on the outer side, the cross lock cylinder 212 is rotated by a key to drive the transmission square steel 106 (thin) to unlock the safety lock, then the sliding handle push block 205 is pushed by a hand to push the inside of the outer lock, then the sliding block 206 is pressed downwards, the sliding block 206 moves downwards to press the rotating push rod 207 to rotate, and then the transmission square steel 106 (thick) is driven to rotate, the transmission square steel 106 (thick) drives power to the gear B109 and the shifting block 111, the limiting locking of the shifting block 111 by the control block 110 is released, the middle lock bolt 12 and the upper and lower lock bolts 11 retract to realize the door opening action, and at the moment, the control panel of the cab displays that the door lock is in an unlocked state.

The utility model discloses in, the spring bolt trigger size of all automatic locks should be less than 7 mm.

The use method of the automatic locking type side door main lock comprises the following steps:

when a driver needs to open the door, firstly, the safety knob 104 on the inner side of the door is rotated (or the cross lock cylinder 212 is rotated on the outer side of the door through a key) to the position where the door lock is opened, then the handle 103 is pressed (or the outer side of the door pushes the sliding handle push block 205 and presses the sliding block 206 downwards), and at the moment, the upper connecting rod, the lower connecting rod and the upper connecting rod are linked to drive the upper bolt, the middle bolt and the lower bolt to retract simultaneously to open the door; meanwhile, the safety bolt 13 retracts, and the cab control panel displays that the door lock state is unlocked. When the door is in an open state, when the door is pushed or pulled to a door closing position, the upper, middle and lower lock tongues can automatically slide to the middle lock opening assembly 5 and the upper and lower lock trigger blocks 8 to realize locking of the door lock; the safety knob 104 also automatically rotates to the closed position, at which time the handle 103 cannot open the door by pressing; meanwhile, the safety lock tongue 13 automatically extends out to trigger a microswitch on a door frame, and the control panel of the cab displays that the door lock state is locked.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims

1. An automatic locking type side door main lock is characterized by comprising:

an inner lock assembly (1) comprising:

2. The automatic lock-up side door main lock according to claim 1, further comprising an up-down lock trigger block (8) mounted on a door frame of a cab side door.

3. The automatic locking-up side door main lock according to claim 1, characterized in that the inner lock assembly (1) and the upper and lower lock assembly (3) are installed inside the door panel of the cab side door, and the outer lock assembly (2) is installed outside the door panel of the cab side door; the middle lock mouth assembly (5) is installed on a door frame of a side door of the cab.

4. The automatic locking-up side door main lock according to claim 2, characterized in that the mounting position of the outer lock assembly (2) is matched with the inner lock assembly (1), and the mounting position of the middle lock notch assembly (5) is matched with the middle lock bolt (12); the mounting positions of the upper and lower lock trigger blocks (8) are matched with the lock tongues (11) of the upper and lower locks.

5. An automatic locking-up side door main lock according to claim 1, characterized in that said connecting rod is divided into an upper connecting rod (6) and a lower connecting rod (7); an upper guide (4) is arranged on the upper connecting rod (6).

6. The automatic lock-up side door main lock according to claim 1, wherein the diameter of gear a (108) is larger than the diameter of gear B (109).

7. The automatic locking-up side door main lock according to claim 1, wherein a torsion spring (209) is further installed on the rotary push rod (207) to enable the rotary push rod (207) to be closely attached to the sliding block (206).

8. The automatic top-locking side door main lock according to claim 1, wherein said spring, gear, cylinder (113), polyoxymethylene block (112) and safety catch stopper (131) are all fixed within said inside lock top cover (107).

9. The automatic locking-up side door main lock according to claim 1, characterized in that two baffles are longitudinally installed on the inner side of the outer lock cover body (201); the two baffle plates are connected through a fixing piece.

10. The automatic locking-up side door main lock according to claim 1, wherein the upper end of the water guard (214) is provided with a water guard cover (202) for waterproofing the cross lock cylinder (212).