Door fence
By setting a limiting component and a top spring in the door frame to restrict the movement of the lock tongue into the lock groove, the problem of simple unlocking methods in existing door frame locks is solved, and a safe door frame that is difficult for children to unlock on their own is realized.
Patent Information
- Application Number
- CN202422885549.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The existing safety gate locks are simple to unlock, and children can easily unlock them by themselves, which cannot effectively restrict them to the safety area.
Design a gate structure including an outer gate and an inner gate. The inner gate is provided with a first lock groove and a first lock tongue, and is equipped with a limiting member and a top spring. The movement of the lock tongue into the lock groove is restricted by the cooperation of the limiting member and the lock tongue. The lock tongue can only be unlocked after the limiting member is released from its restriction.
It features a sophisticated unlocking mechanism to prevent children from easily unlocking the door themselves. The structure is simple and low-cost, effectively preventing children from escaping from safe areas.
Smart Images
Figure CN223469137U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to door bar technical field, especially a door bar. BACKGROUND
[0002] With the progress of social economy, people's safety consciousness is also higher and higher, especially for children, not only pay attention to its safety problem in the outdoor, also pay attention to its safety problem in the indoor, therefore parents usually set up safety door bar in the indoor corridor, stair mouth etc. position, to eliminate potential danger.
[0003] The safety door bar for children or pets currently appearing on the market generally comprises an outer door bar and an inner door bar, the outer door bar is fixed at a position to be installed, one side of the inner door bar is rotationally connected with the outer door bar, the other side is provided with a door bar lock, and a lock groove matched with the door bar lock is arranged on the outer door bar, the outer door bar and the inner door bar are locked through the cooperation of the door bar lock and the lock groove. However, the door bar in the prior art is mainly unlocked by pressing a button or rotating a knob, the operation mode is relatively simple, and thus children can unlock the door bar by themselves, so that children cannot be effectively limited in a safe area. SUMMARY
[0004] The utility model discloses a door bar which aims at solving the problem that the unlocking mode of the door bar lock of the existing safety door bar is simple and children can easily unlock the door bar by themselves.
[0005] To achieve the above object, the utility model provides a door bar, which comprises an outer door bar and an inner door bar pivotally installed on the outer door bar, the outer door bar and the inner door bar are respectively provided with a first lock groove and a first lock tongue, the inner door bar can swing relative to the outer door bar between a position where the first lock tongue is aligned with the first lock groove and a position where the first lock tongue is staggered, the first lock tongue can move relative to the inner door bar between a position where the first lock tongue is partially inserted into the first lock groove and a position where the first lock tongue is withdrawn, the inner door bar is further movably provided with a limiting piece with a through hole, the limiting piece can move relative to the inner door bar between a position where the through hole is aligned with the first lock tongue and a position where the through hole is staggered with the first lock tongue, when the through hole is aligned with the first lock tongue, the first lock tongue can move, and when the through hole is staggered with the first lock tongue, the limiting piece can limit the movement of the first lock tongue.
[0006] Preferably, a first tension spring is further arranged, and the first tension spring is used for applying elastic force to the first lock tongue in the direction of partially inserting the first lock groove.
[0007] Preferably, a second tension spring is further arranged, and the second tension spring is used for applying elastic force to the limiting piece in the direction of staggering the through hole with the first lock tongue.
[0008] Preferably, the limiting member is vertically movably arranged on the inner door post, the first lock bolt is provided with a positioning groove at the bottom, and the positioning groove is provided with a positioning part which can pass through the through hole and is arranged at the side close to the first lock slot. The limiting member can move vertically relative to the inner door post to align or misalign the through hole with the positioning part.
[0009] Preferably, the first lock bolt is provided with a containing groove at the side close to the first lock slot, and a moving member is movably arranged in the containing groove and partially exposed. The moving member can move relative to the first lock bolt between a position where the exposed part is inserted into the first lock slot and a position where the exposed part is withdrawn. A third tension spring is arranged to apply a force to the moving member to move the moving member towards the position where the exposed part is inserted into the first lock slot.
[0010] Preferably, the containing groove is provided with a first limiting groove at one side, and the moving member is provided with a first limiting part which extends into the first limiting groove and is arranged at the side close to the first limiting groove. The first limiting part can move in the first limiting groove along with the movement of the moving member to limit the moving member from being separated from the containing groove.
[0011] Preferably, a first housing is further arranged, the first housing is fixedly arranged on the inner door post, the first lock bolt and the limiting member are movably arranged in the first housing, and the inner wall of the first housing is provided with a second limiting groove. The limiting member is provided with a second limiting part which extends into the second limiting groove and is arranged at the side close to the second limiting groove. The second limiting part can move in the second limiting groove along with the movement of the limiting member to limit the limiting member from being separated from the first housing.
[0012] Preferably, the first housing is movably provided with a driving part which is fixedly connected with the first lock bolt, and the first lock bolt can be driven to move by the driving part.
[0013] Preferably, a second housing which is provided with the first lock slot is further arranged, the second housing is fixedly arranged on the outer door post, the second housing is provided with a window which is in communication with the first lock slot at the top, and the second housing is further provided with an inclined surface. The inner door post can be forced to move the first lock bolt towards the position where the first lock bolt is withdrawn from the first lock slot by the inclined surface during the process of swinging the inner door post towards the position where the first lock bolt is aligned with the first lock slot.
[0014] Preferably, a second lock bolt and a second lock slot are further arranged, the second lock bolt is movably arranged at the bottom of the inner door post, the second lock slot is arranged below the outer door post corresponding to the second lock bolt, and the second lock bolt can move relative to the inner door post between a position where the second lock bolt is partially inserted into the second lock slot and a position where the second lock bolt is withdrawn. A rope is further arranged, and the rope is connected with the limiting member and the second lock bolt at two ends. The limiting member can drive the second lock bolt to move towards the position where the second lock bolt is withdrawn from the second lock slot when the limiting member moves towards the position where the through hole is aligned with the first lock bolt.
[0015] Preferably, a fourth top spring is further arranged to apply elastic force to the second lock tongue in the direction of partially inserting into the second lock slot, and the inner door bar is further provided with a third limiting slot, and the second lock tongue is provided with a third limiting part extending into the third limiting slot on the side close to the third limiting slot, and the third limiting part is movable in the third limiting slot with the movement of the second lock tongue to limit the second lock tongue from being separated from the inner door bar.
[0016] Preferably, the side of the inner door bar away from the lock slot is provided with a first pivot part, and the outer door bar is provided with a vertically extending first pivot shaft below the first pivot part, and the upper end of the first pivot shaft is movably inserted into the bottom of the first pivot part from bottom to top.
[0017] The side of the inner door bar away from the lock slot is further provided with a second pivot part, and the second pivot part is provided with a vertically extending second pivot shaft, and the outer door bar is provided with a pivot seat, and the pivot seat is provided with a vertically extending insertion hole with an open upper end, and the second pivot shaft is movably inserted into the insertion hole from top to bottom.
[0018] Preferably, a second recess and a V-shaped third recess are formed adjacent to the upper end opening of the insertion hole, and the second pivot part is provided with a positioning block, and the positioning block can enter the second recess or the third recess with the swing of the inner door bar.
[0019] Preferably, the inner door bar is formed by connecting a plurality of strip-shaped members, and the outer door bar is a U-shaped structure formed by connecting a first connecting rod, a second connecting rod and a third connecting rod, and the inner door bar is located between the first connecting rod and the third connecting rod.
[0020] The utility model technical scheme includes the outer door bar with the first lock slot and the inner door bar with the first lock tongue, the inner door bar can be pivotally installed on the outer door bar and can swing between the position of aligning and staggering the first lock tongue and the first lock slot, and the inner door bar can also make the first lock tongue partially insert into the first lock slot when aligning to lock the inner door bar, the inner door bar is further movably provided with a limiting piece with a through hole, the limiting piece can move relative to the inner door bar between the position of aligning and staggering the through hole and the first lock tongue, when the through hole aligns with the first lock tongue, the first lock tongue can move in the direction of partially inserting into the first lock slot, when the through hole is staggered with the first lock tongue, the limiting piece can limit the first lock tongue from moving in the direction of partially inserting into the first lock slot, when the inner door bar is unlocked, the limiting piece needs to be moved to align the through hole with the first lock tongue to remove the limitation on the first lock tongue and move the first lock tongue in the direction of withdrawing from the first lock slot to unlock the inner door bar, compared with the traditional one, the utility model realizes the unlocking mode by simple structure with less parts, has low cost and effectively avoids that children easily learn to unlock by themselves. BRIEF DESCRIPTION OF DRAWINGS
[0021] Fig. 1 It is a perspective view of the utility model;
[0022] Fig. 2 is a three-dimensional diagram of the first locking tongue, the limiting member and the first housing;
[0023] Fig. 3 is a cross-sectional view of the cooperation between the first lock tongue and the first lock groove;
[0024] Fig. 4 A cross-sectional view showing the first angle of engagement between the second lock tongue and the second lock groove;
[0025] Fig. 5 A cross-sectional view of the second locking tongue and the second locking groove in cooperation at a second angle;
[0026] Fig. 6 is a cross-sectional view of the cooperation between the second pivotal portion and the pivotal seat;
[0027] Fig. 7 It is a cross-sectional view of the cooperation between the first pivotal portion and the first pivotal axis. DETAILED DESCRIPTION
[0028] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0030] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0031] The utility model provides a door fence.
[0032] The utility model discloses an embodiment, like Figs. 1 to 7 As shown in the figure, the door bar includes outer door bar 1 and the inner door bar 2 of pivotally installed in outer door bar 1, first lock slot 11 and first lock tongue 21 are equipped with respectively in outer door bar 1 and inner door bar 2, and the inner door bar 2 can swing between the position of making first lock tongue 21 and first lock slot 11 alignment and stagger, first lock tongue 21 can move between the position of partially inserting first lock slot 11 and withdrawing relative to inner door bar 2, characterized in that: the inner door bar 2 is further movably provided with the limiting piece 22 with the through hole 221, the limiting piece 22 can move between the position of making the through hole 221 and first lock tongue 21 alignment and stagger relative to inner door bar 2, when the through hole 221 and first lock tongue 21 align, first lock tongue 21 can do the movement, when the through hole 221 and first lock tongue 21 stagger, the limiting piece 22 can limit first lock tongue 21 to do the movement.
[0033] Specifically, first top spring 23 is further provided, and first top spring 23 is used to apply the elastic force of the movement in the direction of partially inserting first lock slot 11 to first lock tongue 21.
[0034] Specifically, second top spring 24 is further provided, and second top spring 24 is used to apply the elastic force of the movement in the direction of the through hole 221 and first lock tongue 21 stagger to limiting piece 22.
[0035] Specifically, the limiting piece 22 is vertically movably arranged in the inner door bar 2, the bottom of first lock tongue 21 is provided with a positioning groove 211, one side of the positioning groove 211 close to first lock slot 11 is provided with a positioning part 212 that can pass through the through hole 221, and the limiting piece 22 can do vertical reciprocating motion relative to the inner door bar 2 to align or stagger the through hole 221 and the positioning part 212.
[0036] Specifically, one side of first lock tongue 21 close to first lock slot 11 is provided with a containing groove 213, a moving part 214 is movably arranged in the containing groove 213 and partially exposed outside, the moving part 214 can move between the position of inserting the exposed part into first lock slot 11 and withdrawing relative to first lock tongue 21, and third top spring 215 is further provided, and third top spring 215 is used to apply the elastic force of the movement in the direction of the exposed part inserting first lock slot 11 to the moving part 214.
[0037] Specifically, one side of the containing groove 213 is provided with a first limiting groove 216, one side of the moving part 214 close to the first limiting groove 216 is provided with a first limiting part 217 that extends into the first limiting groove 216, and the first limiting part 217 can move in the first limiting groove 216 with the movement of the moving part 214 to limit the moving part 214 from separating from the containing groove 213.
[0038] Specifically, the first shell 100 is fixedly installed on the inner door post 2, the first lock tongue 21 and the limiting piece 22 are movably installed on the first shell 100 respectively, a second limiting groove 101 is formed in the inner wall of the first shell 100, and the limiting piece 22 is provided with a second limiting part 222 extending into the second limiting groove 101 on the side close to the second limiting groove 101. The second limiting part 222 can move in the second limiting groove 101 along with the movement of the limiting piece 22, so as to limit the limiting piece 22 from being separated from the first shell 100.
[0039] Specifically, the first shell 100 is fixedly installed on the inner door post 2, the first lock tongue 21 and the limiting piece 22 are movably installed on the first shell 100 respectively, a second limiting groove 101 is formed in the inner wall of the first shell 100, and the limiting piece 22 is provided with a second limiting part 222 extending into the second limiting groove 101 on the side close to the second limiting groove 101. The second limiting part 222 can move in the second limiting groove 101 along with the movement of the limiting piece 22, so as to limit the limiting piece 22 from being separated from the first shell 100.
[0040] Specifically, the surface of the driving part 223 is provided with anti-skid lines.
[0041] Specifically, the second shell 200 provided with the first lock slot 11 is further provided, the second shell 200 is fixedly installed on the outer door post 1, a window 201 in communication with the first lock slot 11 is formed in the top of the second shell 200, and the second shell 200 is further provided with an inclined surface. During the swinging of the inner door post 2 to the direction that the first lock tongue 21 is aligned with the first lock slot 11, the first lock tongue 21 can be forced to move to the direction of exiting the first lock slot 11 through the inclined surface, so that the situation that the inner door post 2 cannot continue to swing due to the abutment between the first lock tongue 21 and the outer wall of the second shell 200 is avoided.
[0042] Specifically, the second lock tongue 31 is movably arranged at the bottom of the inner door post 2, the second lock slot 32 is arranged below the position corresponding to the second lock tongue 31 of the outer door post 1, the second lock tongue 31 can move between the position of partially inserting into the second lock slot 32 and the position of exiting from the second lock slot 32 relative to the inner door post 2, and the rope 33 is further provided, the two ends of the rope 33 are connected with the limiting piece 22 and the second lock tongue 31 respectively. When the limiting piece 22 moves to the direction that the through hole 221 is aligned with the first lock tongue 21, the second lock tongue 31 can be driven to move to the direction of exiting from the second lock slot 32 through the rope 33.
[0043] Specifically, the fourth top spring 34 is further provided, the fourth top spring 34 is used for applying elastic force to the second lock tongue 31 to move to the direction of partially inserting into the second lock slot 32, and the third limiting groove 35 is further formed in the inner door post 2. The third limiting part 36 extending into the third limiting groove 35 is arranged on the side close to the third limiting groove 35 of the second lock tongue 31. The third limiting part 36 can move in the third limiting groove 35 along with the movement of the second lock tongue 31, so as to limit the second lock tongue 31 from being separated from the inner door post 2.
[0044] Specifically, the outer door bar 1 is provided with a guide surface 37 at a position corresponding to the outer side of the second lock slot 32. The inner door bar 2 can contact the second lock tongue 31 through the guide surface 37 and force the second lock tongue 31 to move in the direction of exiting the second lock slot 32 during the swinging process of aligning the first lock tongue 21 with the first lock slot 11, thereby avoiding the situation that the inner door bar 2 cannot continue to swing due to the abutment of the second lock tongue 31 and the outer wall of the outer door bar 1. When the inner door bar 2 swings to align the first lock tongue 21 with the first lock slot 11, the second lock tongue 31 is aligned with the second lock slot 32, the first top spring 23 releases the elastic force to make the first lock tongue 21 inserted into the first lock slot 11, and the fourth top spring 34 releases the elastic force to make the second lock tongue 31 inserted into the second lock slot 32.
[0045] Specifically, the inner door bar 2 is provided with a first pivot connection part 41 on the side away from the lock slot. The outer door bar 1 is provided with a vertically extending first pivot connection shaft 42 corresponding to the position below the first pivot connection part 41. The upper end of the first pivot connection shaft 42 is inserted into the bottom of the first pivot connection part 41 from bottom to top. A first recess is formed in the position of the upper end of the first pivot connection shaft 42. A clamping block 43 corresponding to the first recess is arranged in the inner door bar 2. The clamping block 43 can swing between the position of entering the first recess and the position of exiting with the swinging of the inner door bar 2. When the first lock tongue 21 is aligned with the first lock slot 11, the clamping block 43 is located in the first recess.
[0046] The inner door bar 2 is also provided with a second pivot connection part 51 away from the lock slot. The second pivot connection part 51 is provided with a vertically extending second pivot connection shaft 52. The outer door bar 1 is provided with a pivot seat 53. The pivot seat 53 is provided with an insertion hole 54 extending vertically and open at the upper end. The second pivot connection shaft 52 is inserted into the insertion hole 54 from top to bottom.
[0047] Specifically, a second recess 55 and a V-shaped third recess are formed adjacent to the upper end opening of the insertion hole 54, the second pivot joint 51 is provided with a positioning block, and the positioning block can enter the second recess 55 or the third recess with the swinging of the inner door bar 2. When the positioning block is located in the second recess 55, an included angle greater than or equal to 90° is formed between the inner door bar 2 and the outer door bar 1, and when the positioning block exits the second recess 55 and enters the V-shaped third recess, the wall surface of the third recess can guide the positioning block to move to the bottom of the third recess, that is, the inner door bar 2 can be automatically swung in the direction of aligning the first lock tongue 21 with the first lock slot 11 to achieve the automatic closing effect. Specifically, the lower end of the second pivot joint 52 is provided with a limiting head 56 for limiting the second pivot joint 52 from disengaging from the insertion hole 54, and a fifth compression spring 57 is further provided, the upper end and the lower end of the fifth compression spring 57 are respectively in elastic abutment with the inner wall of the insertion hole 54 and the top wall of the limiting head 56, and the fifth compression spring 57 is used for applying a swinging elastic force to the inner door bar 2 in the closing direction to further improve the automatic closing effect. Specifically, the inner door bar 2 is connected by a plurality of strip-shaped members, the outer door bar 1 is a U-shaped structure formed by connecting the first connecting rod, the second connecting rod and the third connecting rod, and the inner door bar 2 is located between the first connecting rod and the third connecting rod.
[0048] Specifically, the first connecting rod away from the inner door bar 2 and the third connecting rod away from the inner door bar 2 are further provided with a vertically extending fourth connecting rod 6.
[0049] The utility model discloses a technical scheme including the outer door bar with the first lock slot and the inner door bar with the first lock tongue, the inner door bar can be pivotally installed on the outer door bar and can swing between the position of aligning and staggering the first lock tongue and the first lock slot, and the first lock tongue can be partially inserted into the first lock slot when aligning to lock the inner door bar, the inner door bar is further provided with a limiting piece with a through hole, the limiting piece can move relative to the inner door bar between the position of aligning and staggering the through hole and the first lock tongue, the first lock tongue can move in the direction of partially inserting into the first lock slot when the through hole aligns with the first lock tongue, the limiting piece can limit the first lock tongue from moving in the direction of partially inserting into the first lock slot when the through hole staggers with the first lock tongue, and the inner door bar unlocking operation needs to move the limiting piece to align the through hole with the first lock tongue to remove the restriction on the first lock tongue and move the first lock tongue in the direction of exiting the first lock slot to unlock the inner door bar. Compared with the prior art, the utility model realizes the unlocking mode by simple structure with fewer parts, has low cost and effectively avoids children from easily learning to unlock.
[0050] The above-mentioned is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by the utility model specification and the attached drawings or directly / indirectly applied in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.
Claims
1. A door fence, comprising an outer door fence (1) and an inner door fence (2) pivotally mounted on the outer door fence (1), wherein the outer door fence (1) and the inner door fence (2) are respectively provided with a first locking groove (11) and a first locking tongue (21), the inner door fence (2) can swing relative to the outer door fence (1) between positions where the first locking tongue (21) is aligned with and offset from the first locking groove (11), and the first locking tongue (21) can move relative to the inner door fence (2) between positions where it is partially inserted into and withdrawn from the first locking groove (11), characterized in that: The inner door bar (2) is further movably provided with a limiting piece (22) with a through hole (221), the limiting piece (22) can move relative to the inner door bar (2) between a position where the through hole (221) is aligned with the first lock tongue (21) and a position where the through hole (221) is misaligned with the first lock tongue (21), when the through hole (221) is aligned with the first lock tongue (21), the first lock tongue (21) can move, when the through hole (221) is misaligned with the first lock tongue (21), the limiting piece (22) can limit the movement of the first lock tongue (21).
2. The gate bar of claim 1, wherein: A first top spring (23) is further arranged, the first top spring (23) is used for applying elastic force to the first lock tongue (21) to move in the direction of partially inserting into the first lock slot (11).
3. The gate bar of claim 1, wherein: A second top spring (24) is further arranged, the second top spring (24) is used for applying elastic force to the limiting piece (22) to move in the direction of misaligning the through hole (221) with the first lock tongue (21).
4. The gate bar of claim 1, wherein: The limiting piece (22) is vertically movably arranged on the inner door bar (2), the bottom of the first lock tongue (21) is provided with a positioning groove (211), one side of the positioning groove (211) close to the first lock slot (11) is provided with a positioning part (212) passing through the through hole (221), and the limiting piece (22) can move vertically and reciprocally relative to the inner door bar (2) to align or misalign the through hole (221) with the positioning part (212).
5. The gate bar of claim 1, wherein: One side of the first lock tongue (21) close to the first lock slot (11) is provided with an accommodating groove (213), a moving piece (214) is movably arranged in the accommodating groove (213) and partially exposed outside, the moving piece (214) can move relative to the first lock tongue (21) between a position where the exposed part is inserted into the first lock slot (11) and a position where the exposed part is withdrawn, and a third top spring (215) is further arranged, the third top spring (215) is used for applying elastic force to the moving piece (214) to move in the direction of inserting the exposed part into the first lock slot (11).
6. The gate bar of claim 5, wherein: One side of the accommodating groove (213) is provided with a first limiting groove (216), one side of the moving piece (214) close to the first limiting groove (216) is provided with a first limiting part (217) extending into the first limiting groove (216), and the first limiting part (217) can move in the first limiting groove (216) with the movement of the moving piece (214) to limit the moving piece (214) from separating from the accommodating groove (213).
7. The gate bar of claim 1, wherein: A first housing (100) is further arranged, the first housing (100) is fixedly arranged on the inner door bar (2), the first lock tongue (21) and the limiting piece (22) are movably arranged in the first housing (100), a second limiting groove (101) is arranged on the inner wall of the first housing (100), one side of the limiting piece (22) close to the second limiting groove (101) is provided with a second limiting part (222) extending into the second limiting groove (101), and the second limiting part (222) can move in the second limiting groove (101) with the movement of the limiting piece (22) to limit the limiting piece (22) from separating from the first housing (100).
8. The gate bar of claim 7, wherein: The first shell (100) top movably provided with the drive part (223) fixedly connected with the first lock tongue (21), the first lock tongue (21) can be driven by the drive part (223) to move.
9. The gate bar of claim 1 wherein: Also provided with the second shell (200) with the first lock slot (11), the second shell (200) is fixedly installed on the outer door bar (1), the second shell (200) top is provided with the window (201) communicated with the first lock slot (11), the second shell (200) is also provided with the inclined surface, the inner door bar (2) is swung in the direction of making the first lock tongue (21) align with the first lock slot (11), the first lock tongue (21) can be forced to move in the direction of exiting the first lock slot (11) through the inclined surface.
10. The gate bar of claim 1, wherein: Also provided with the second lock tongue (31) and the second lock slot (32), the second lock tongue (31) is movably arranged on the bottom of the inner door bar (2), the second lock slot (32) is arranged below the second lock tongue (31) on the outer door bar (1), the second lock tongue (31) can move between the position of partially inserting the second lock slot (32) and exiting relative to the inner door bar (2), and the rope (33) is also provided, the two ends of the rope (33) are connected with the limiting piece (22) and the second lock tongue (31), the limiting piece (22) moves in the direction of aligning the hole (221) with the first lock tongue (21), and the second lock tongue (31) can be driven to move in the direction of exiting the second lock slot (32) through the rope (33).
11. The gate bar of claim 10, wherein: Also provided with the fourth top spring (34), the fourth top spring (34) is used for applying elastic force to the second lock tongue (31) in the direction of partially inserting the second lock slot (32), the inner door bar (2) is also provided with the third limiting slot (35), one side of the second lock tongue (31) close to the third limiting slot (35) is provided with the third limiting part (36) extending into the third limiting slot (35), and the third limiting part (36) can move in the third limiting slot (35) with the movement of the second lock tongue (31), so as to limit the second lock tongue (31) from separating from the inner door bar (2).
12. The gate bar of claim 1 wherein: The side of the inner door bar (2) away from the lock slot is provided with the first pivot joint part (41), the outer door bar (1) is provided with the vertically extending first pivot joint shaft (42) below the position corresponding to the first pivot joint part (41), and the upper end of the first pivot joint shaft (42) is movably inserted into the bottom of the first pivot joint part (41) from bottom to top. The side of the inner door bar (2) away from the lock slot is also provided with the second pivot joint part (51), the second pivot joint part (51) is provided with the vertically extending second pivot joint shaft (52), the outer door bar (1) is provided with the pivot joint seat (53), the pivot joint seat (53) is provided with the vertically extending insertion hole (54) with the open upper end, and the second pivot joint shaft (52) is movably inserted into the insertion hole (54) from top to bottom.
13. The gate bar of claim 12, wherein: The second recess (55) and the V-shaped third recess are formed adjacent to the upper end opening of the insertion hole (54), the second pivot joint part (51) is provided with the positioning block, and the positioning block can enter the second recess (55) or the third recess with the swing of the inner door bar (2).
14. The gate bar of claim 1 wherein: The inner door bar (2) is formed by connecting a plurality of strip-shaped members, and the outer door bar (1) is a U-shaped structure formed by connecting a first connecting rod, a second connecting rod and a third connecting rod, and the inner door bar (2) is located between the first connecting rod and the third connecting rod.