Locking mechanism and retractable door fence with same

Abstract

According to the locking mechanism and the retractable door fence with the locking mechanism, a connector used for being fixedly connected with the upper end of a rotary drum is arranged on a shell in a pivoted mode, a locking piece is movably arranged on the shell, and the locking piece can do vertical reciprocating motion relative to the shell so that the locking piece can be connected with the connector in a clamped mode or can be away from the connector. When the locking piece is connected with the connector in a clamped mode, the connector can be limited to do pivoting motion so as to lock the rotary drum, the locking piece is manually driven to do ascending motion to be far away from the connector to relieve clamping matching, locking of the rotary drum can be relieved, compared with a traditional mode, the structure is simple, original functions are guaranteed, meanwhile, needed parts are reduced, and cost is reduced. And the mold opening cost of the product is effectively reduced, so that the production cost of the retractable door fence is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of door barriers, and particularly relates to a locking mechanism and a retractable door barrier with the same. Background Art

[0002] Most retractable door barriers are used indoors or in courtyards and are used to separate indoor spaces or courtyard spaces so as to form different temporary activity spaces indoors or in the courtyard for infants and young children to move. Specifically, the retractable door barrier mainly includes a locking mechanism, a base, a rotating cylinder, and a partition cloth. The rotating cylinder is pivotally installed between the locking mechanism and the base. One end of the partition cloth is arranged on the rotating cylinder. A torsion spring is arranged inside the rotating cylinder. Through the rotational elastic force of the torsion spring, the rotating cylinder can be urged to rotate around its own axis in one direction, so as to realize that the rotating cylinder can wind up the partition cloth. When actually using the retractable door barrier, the partition cloth is pulled out a certain length from the rotating cylinder by hand and then the pulled-out end of the partition cloth is fixed. The torsion spring always applies a force to the pulled-out partition cloth. After the partition cloth is wound back onto the rotating cylinder, the separated space can be released.

[0003] For the existing retractable door barriers, the locking and unlocking of their rollers both require manual operations. For example, the knob type structure mainly uses a knob arranged on the lock head. When the knob rotates, it cooperates with the locking structure to lock or unlock the rotating cylinder. The locking structure mainly includes components such as a ratchet wheel, a ratchet pawl, a locking piece, and several top springs assembled inside the lock head. There are problems of more components and cumbersome assembly. At the same time, each component of the lock head needs to be independently molded and manufactured. The more components there are, the higher the mold opening cost, thus resulting in a higher production cost of the retractable door barrier. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a locking mechanism and a retractable door barrier with the same, aiming to solve the deficiencies mentioned in the above background art.

[0005] To achieve the above purpose, the utility model proposes a locking mechanism, including:

[0006] A housing;

[0007] A connecting head, the connecting head is pivotally installed on the housing;

[0008] A locking piece, the locking piece is movably installed on the housing and can make vertical reciprocating motion relative to the housing, so as to be engaged with the connecting head to limit the connecting head from making a pivoting action or move away from the connecting head to release the restriction.

[0009] Preferably, it further includes a first top spring, and the first top spring is used to apply an elastic force to the locking piece in the direction of moving towards engaging with the connecting head.

[0010] Preferably, a positioning structure is further included. After the locking member moves away from the connector, it can be limited by the positioning structure to restrict the movement of the locking member in the direction of engaging with the connector.

[0011] Preferably, after the locking member moves away from the connector, it can pivot relative to the housing. The positioning structure includes a positioning portion connected to the locking member and a positioning hole provided in the housing. The positioning hole includes a vertically extending vertical section and a horizontally extending horizontal section. The upper end of the vertical section is connected to one end of the horizontal section. The positioning portion is inserted into the positioning hole and can move to the upper end of the vertical section and face the horizontal section as the locking member moves upward, and then enter the horizontal section as the locking member pivots to restrict the locking member from moving downward.

[0012] Preferably, a driving portion fixedly connected to the locking member is provided outside the housing, and the locking member can be driven to perform the movement through the driving portion.

[0013] Preferably, an anti-slip structure is provided on the surface of the driving portion.

[0014] Preferably, a pivot member is pivotally installed inside the housing. The lower end of the pivot member passes through the bottom of the housing and is exposed outside and fixedly connected to the connector. A plug-in portion is provided at the top of the pivot member, and a slot adapted to the plug-in portion is provided at the corresponding position of the bottom of the locking member. The plug-in portion can be inserted into or withdrawn from the slot as the locking member moves vertically reciprocally to restrict or release the pivoting movement of the connector.

[0015] Preferably, a plurality of the plug-in portions are annularly and spacedly provided at the top of the pivot member.

[0016] Preferably, a plug board for fixing at the installation position to be installed is further provided. A jack is provided on one side of the housing for the plug board to be inserted from bottom to top. One side of the jack close to the installation position to be installed is partially open. The housing can be quickly assembled or disassembled at the installation position to be installed through the cooperation of the jack and the plug board. A locking key is movably provided inside the housing. The locking key can move relative to the housing between a position where it is inserted into the plug board to restrict the plug board from withdrawing from the jack and a position where it is away from the plug board to release the restriction. Another second top spring is provided, and the second top spring is used to apply an elastic force to the locking key in the direction of inserting into the plug board.

[0017] The present utility model further provides a retractable door barrier, including a rotating cylinder, a curtain body, a base, and a locking mechanism. The locking mechanism is the above-mentioned locking mechanism. The lower end of the rotating cylinder is pivotally connected to the base, and the upper end of the rotating cylinder is fixedly connected to the connector.

[0018] Preferably, a connecting rod is further provided. Two ends of the connecting rod are respectively fixedly connected to the locking mechanism and the base. The connecting rod is fixedly sleeved with a first collar and movably sleeved with a second collar. The second collar can pivot relative to the connecting rod and can also move along the connecting rod between a position sleeved on the first collar and a position away from the first collar. The outer wall of the first collar is provided with teeth, and the inner wall of the second collar is provided with a tooth groove adapted to the teeth. After the second collar is sleeved on the first collar, the pivoting action of the second collar can be restricted by the cooperation of the teeth and the tooth groove. After the second collar is sleeved on the first collar, the movement of the second collar away from the first collar can be restricted by a bolt. A baffle is provided on the outer wall of the second collar, and the baffle can swing between a position close to or away from the curtain body as the second collar pivots.

[0019] In the technical solution of the present utility model, a connecting head for fixedly connecting to the upper end of the rotating cylinder is pivotally provided on the housing respectively, and a locking member is movably provided. The locking member can reciprocate vertically relative to the housing to realize clamping or separating from the connecting head. When the locking member clamps the connecting head, the pivoting action of the connecting head can be restricted to lock the rotating cylinder. Manually driving the locking member to move upward away from the connecting head to release the clamping fit can release the locking of the rotating cylinder. Compared with the traditional one, the structure is simple. While ensuring the original functions, the required parts are reduced, effectively reducing the product mold opening cost, and thus reducing the production cost of the retractable door barrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of the locking mechanism;

[0021] Figure 2 is a first-angle exploded view of the locking mechanism;

[0022] Figure 3 is a second-angle exploded view of the locking mechanism;

[0023] Figure 4 is a schematic view of the retractable door barrier;

[0024] Figure 5 is an assembly schematic view of the first collar and the second collar;

[0025] Figure 6 is a schematic view of the first collar and the second collar respectively sleeved on the connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] It should be noted that if there are directional indications involved in the embodiments of the present utility model (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present utility model, then such descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] The present utility model provides a locking mechanism.

[0030] In the embodiments of the present utility model, as Figures 1 to 6 shown, the locking mechanism includes a housing 11, a connecting head 12, and a locking member 13.

[0031] Wherein, the connecting head 12 is pivotally installed on the housing 11; the locking member 13 is movably installed on the housing 11 and can reciprocate vertically relative to the housing 11, so as to engage with the connecting head 12 to restrict the connecting head 12 from pivoting or move away from the connecting head 12 to release the restriction.

[0032] Specifically, it further includes a first top spring 14, and the first top spring 14 is used to apply an elastic force to the locking member 13 to move in the direction of engaging with the connecting head 12, so as to achieve automatic locking. One end of the first top spring 14 elastically abuts against the inner wall of the housing 11, and the other end elastically abuts against the top wall of the locking member 13.

[0033] Specifically, it further includes a positioning structure. After the locking member 13 moves away from the connecting head 12, it can be limited by the positioning structure to restrict the locking member 13 from moving in the direction of engaging with the connecting head 12.

[0034] Specifically, after the locking member 13 moves away from the connector 12, it can pivot relative to the housing 11. The positioning structure includes a positioning portion 131 connected to the locking member 13 and a positioning hole 100 provided in the housing 11. The positioning hole 100 includes a vertically extending vertical section 101 and a horizontally extending horizontal section 102. The upper end of the vertical section 101 is connected to one end of the horizontal section 102. The positioning portion 131 is inserted into the positioning hole 100, and can move to the upper end of the vertical section 101 and face the horizontal section 102 as the locking member 13 moves upward, and then enter the horizontal section 102 as the locking member 13 pivots to restrict the locking member 13 from moving downward. Reversely pivoting the locking member 13 drives the positioning portion 131 to exit the horizontal section 102 and enter the vertical section 101, and then the restriction on the locking member 13 can be released. It can be understood that when the locking member 13 is engaged with the connector 12, the positioning portion 131 is at the lower end position of the vertical section 101. At this time, the positioning portion 131 is restricted by the vertical section 101 and can only move upward or downward, thus avoiding the situation where the connector 12 drives the locking member 13 to pivot.

[0035] Specifically, a driving portion 132 fixedly connected to the locking member 13 is provided outside the housing 11, and the locking member 13 can be driven to perform the movement through the driving portion 132. The positioning portion 131 is strip-shaped, with one end fixedly connected to the outer wall of the locking member 13 and the other end passing through the positioning hole 100 and fixedly connected to the driving portion 132. Specifically, in this embodiment, the number of the driving portions 132 is two. During operation, the locking member 13 can be driven to move upward or pivot by respectively pressing the two driving portions 132 with the thumb and index finger to form a clamping manner, which is convenient to operate and conforms to ergonomics.

[0036] Specifically, an anti-slip structure is provided on the surface of the driving portion 132. The friction force on the surface of the driving portion 132 is increased through the anti-slip structure, and the anti-slip structure can be a stripe, a concave position or a particle structure, etc.

[0037] Specifically, a pivot member 15 is pivotally installed inside the housing 11. The lower end of the pivot member 15 passes through the bottom of the housing 11 and is exposed outside and fixedly connected to the connector 12. A plug-in portion 151 is provided at the top of the pivot member 15, and a slot 133 adapted to the plug-in portion 151 is provided at the position corresponding to the plug-in portion 151 at the bottom of the locking member 13. The plug-in portion 151 can be inserted into or withdrawn from the slot 133 as the locking member 13 moves vertically back and forth to restrict or release the connector 12 from pivoting.

[0038] Specifically, the pivot member 15 is pivotally installed in the housing 11 through a bearing.

[0039] Specifically, the lower end of the pivot member 15 is inserted into the connection head 12 and then locked by screws. Further, the interface at the lower end of the pivot member 15 is preferably non-circular.

[0040] Specifically, a plurality of the insertion portions 151 are annularly and spacedly arranged at the top of the pivot member 15.

[0041] Specifically, the lock will be annularly and spacedly provided with a plurality of convex portions, and the spaced space between two adjacent convex portions is the slot 133.

[0042] Specifically, there is also a plug board 16 for fixing at the position to be installed. A jack 17 is opened on one side of the housing 11 for the plug board 16 to be inserted from bottom to top. One side of the jack 17 close to the position to be installed is partially open. The housing 11 can be quickly assembled or disassembled at the position to be installed through the cooperation of the jack 17 and the plug board 16. A locking key 18 is also movably arranged in the housing 11. The locking key 18 can move relative to the housing 11 between a position where it is inserted into the plug board 16 to restrict the plug board 16 from withdrawing from the jack 17 and a position where it is away from the plug board 16 to release the restriction. There is also a second top spring 19, and the second top spring 19 is used to apply an elastic force to the locking key 18 in the direction of moving towards the plug board 16 for insertion.

[0043] Specifically, a part of the locking key 18 extends out of the housing 11 to form a driving end. The driving end can be used to drive the locking key 18 to move away from the plug board 16 against the elastic force applied by the second top spring 19, thereby releasing the restriction on the plug board 16. It can be understood that the housing 11 is open at the position corresponding to the movement track of the driving end to avoid affecting the movement of the driving end.

[0044] The present utility model also proposes a retractable door barrier, including a rotating cylinder, a curtain body 2, a base 3 and a locking mechanism. The lower end of the rotating cylinder is pivotally connected to the base 3, and the upper end of the rotating cylinder is fixedly connected to the connection head 12. For the specific structure of the locking mechanism, please refer to the above embodiments. Since this retractable door barrier adopts all the technical solutions of all the above embodiments of the locking mechanism, it at least has all the beneficial effects brought by the technical solutions of the above locking mechanism, which will not be elaborated one by one here. It can be understood that the structures of the retractable door barrier other than the locking mechanism are well known to those skilled in the art, and their specific structures, connection relationships and working principles will not be elaborated.

[0045] Specifically, a connecting rod 4 is further provided. The two ends of the connecting rod 4 are respectively fixedly connected to the locking mechanism and the base 3. The connecting rod 4 is fixedly sleeved with a first clamping sleeve 5 and movably sleeved with a second clamping sleeve 6. The second clamping sleeve 6 can pivot relative to the connecting rod 4 and can also move along the connecting rod 4 between the positions of being sleeved on the first clamping sleeve 5 and being away from it. The outer wall of the first clamping sleeve 5 is provided with clamping teeth 51, and the inner wall of the second clamping sleeve 6 is provided with tooth grooves 61 adapted to the clamping teeth 51. After the second clamping sleeve 6 is sleeved on the first clamping sleeve 5, the pivoting action of the second clamping sleeve 6 can be restricted through the cooperation of the clamping teeth 51 and the tooth grooves 61. After the second clamping sleeve 6 is sleeved on the first clamping sleeve 5, the movement of the second clamping sleeve 6 away from the first clamping sleeve 5 can be restricted by a bolt 200. The outer wall of the second clamping sleeve 6 is provided with a baffle 62, and the baffle 62 can swing between the positions of being close to or away from the curtain body 2 as the second clamping sleeve 6 pivots. Pull handles 7 are provided at the ends of the curtain body 2. After the curtain body 2 is completely wound up, mainly by the connecting rod 4 abutting against the pull handle 7, the rotating cylinder cannot rotate towards the direction of winding up the curtain body 2 anymore, avoiding the consumption of the torsion of the torsion spring, so that the torsion spring can still maintain a certain torsion in the state where the curtain body 2 is completely wound up. The length of the curtain body 2 is changeable. When the length of the curtain body 2 is shorter, the diameter of the wound-up curtain body 2 is also smaller, and the spacing space between the connecting rod 4 and the wound-up curtain body 2 is too large. The pull handle 7 can pass through the spacing space, resulting in the consumption of the elastic force of the torsion spring. The torsion spring cannot maintain within the required torsion range after the curtain body 2 is completely wound up, nor can the torsion be adjusted. Therefore, in the case where the said spacing space is too large, by the way of the baffle 62 abutting against the pull handle 7, the wound-up curtain body 2 is fixed, making the rotating cylinder unable to rotate towards the direction of winding up the curtain body 2 anymore, thereby solving the above problem of torsion consumption. On the other hand, the second clamping sleeve 6 can be pivoted according to the size of the spacing space to swing the baffle 62 to a corresponding position to adjust the distance between the baffle 62 and the curtain body 2 until the baffle 62 can abut against the pull handle 7.

[0046] Specifically, the connecting rod 4 is further movably sleeved with a sliding seat 8. The sliding seat 8 can be quickly fixed to the installation position to be installed or quickly disassembled through a quick-release structure. The quick-release structure can refer to the connection structure between the above-mentioned locking mechanism and the installation position to be installed, and the specific structural principle thereof will not be elaborated here.

[0047] It should be noted that the installation position to be installed is mainly a wall surface.

[0048] Specifically, the housing 11 is formed by splicing an upper shell and a lower shell and is locked by screws or fixed by a snap structure. When it is a snap structure, it can refer to the prior art, and the specific structural principle thereof will not be elaborated here.

[0049] Specifically, after the first clamping sleeve 5 is sleeved on the connecting rod 4, it is locked by screws.

[0050] In the technical solution of the present utility model, a connecting head for fixedly connecting with the upper end of the rotating cylinder is pivotally arranged on the housing respectively, and a locking member is movably arranged. The locking member can move vertically back and forth relative to the housing to achieve clamping with the connecting head or moving away from the connecting head. When the locking member is clamped with the connecting head, the connecting head can be restricted from pivoting, thereby locking the rotating cylinder. Manually driving the locking member to move upward away from the connecting head to release the clamping fit can release the locking of the rotating cylinder. Compared with the traditional one, the structure is simple, while ensuring the original functions, the required components are reduced, the product mold opening cost is effectively reduced, and thus the production cost of the telescopic door barrier is reduced.

[0051] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or direct / indirect application in other related technical fields shall be included in the patent protection scope of the present utility model.

Claims

1. A locking mechanism, characterized in that: include: Housing (11); A connecting head (12), wherein the connecting head (12) is pivotally mounted on the housing (11); A locking member (13) is movably mounted on the housing (11) and can perform vertical reciprocating motion relative to the housing (11), thereby engaging with the connecting head (12) to restrict the connecting head (12) from pivoting or moving away from the connecting head (12) to release the restriction.

2. The locking mechanism according to claim 1, characterized in that: It also comprises a first top spring (14), wherein the first top spring (14) is used to apply an elastic force to the locking member (13) to move in a direction of clamping with the connecting head (12).

3. The locking mechanism according to claim 1, wherein: It also comprises a positioning structure, and after the locking member (13) moves in a direction away from the connecting head (12), the locking member (13) can be limited by the positioning structure to restrict the locking member (13) from moving in a direction of engaging with the connecting head (12).

4. The locking mechanism according to claim 3, characterized in that: After the locking member (13) moves in a direction away from the connecting head (12), it can pivot relative to the housing (11). The positioning structure comprises a positioning portion (131) connected to the locking member (13) and a positioning hole (100) provided in the housing (11). The positioning hole (100) comprises a vertical section (101) extending vertically and a horizontal section (102) extending horizontally. The upper end of the vertical section (101) is connected to one end of the horizontal section (102). The positioning portion (131) is inserted into the positioning hole (100) and can move to the upper end of the vertical section (101) and be opposite to the horizontal section (102) as the locking member (13) moves upward, and then enters the horizontal section (102) as the locking member (13) pivots to limit the locking member (13) from moving downward.

5. The locking mechanism according to claim 1, wherein: A driving part (132) fixedly connected to the locking member (13) is provided outside the housing (11), and the locking member (13) can be driven by the driving part (132) to perform the movement.

6. The locking mechanism according to claim 5, characterized in that: The surface wall of the driving part (132) is provided with an anti-slip structure.

7. The locking mechanism according to claim 1, wherein: A pivot member (15) is pivotally mounted inside the shell (11), the lower end of the pivot member (15) passes through the bottom of the shell (11) and is exposed to the outside and fixedly connected to the connector (12), a plug-in portion (151) is provided at the top of the pivot member (15), and a slot (133) adapted to the plug-in portion (151) is provided at the bottom of the locking member (13) at a position corresponding to the plug-in portion (151), and the plug-in portion (151) can be inserted into or withdrawn from the slot (133) as the locking member (13) moves back and forth in the vertical direction to restrict the connector (12) from pivoting or release the restriction.

8. The locking mechanism according to claim 7, characterized in that: A plurality of the inserting portions (151) are provided at intervals in an annular shape on the top of the pivoting member (15).

9. The locking mechanism according to claim 1, wherein: A plug plate (16) is also provided for fixing at a position to be installed. A plug hole (17) is provided on one side of the housing (11) for inserting the plug plate (16) from bottom to top. The plug hole (17) is partially open on a side close to the position to be installed. The housing (11) can be quickly assembled at the position to be installed or quickly disassembled through the cooperation between the plug hole (17) and the plug plate (16). A locking key (18) is also movably provided in the housing (11). The locking key (18) can move relative to the housing (11) between a position where it is plugged with the plug plate (16) to restrict the plug plate (16) from exiting the plug hole (17) and a position where it is away from the plug plate (16) to release the restriction. A second top spring (19) is also provided. The second top spring (19) is used to apply an elastic force to the locking key (18) to move in the direction of plugging with the plug plate (16).

10. A telescopic door barrier, comprising a rotating drum, a curtain body (2), and a base (3), characterized in that: It also comprises a locking mechanism as claimed in any one of claims 1 to 9, wherein the lower end of the rotating drum is pivotally connected to the base (3), and the upper end of the rotating drum is fixedly connected to the connecting head (12).

11. The telescopic gate according to claim 10, characterized in that: A connecting rod (4) is also provided, and the two ends of the connecting rod (4) are fixedly connected to the locking mechanism and the base (3) respectively. The connecting rod (4) is provided with a first clamping sleeve (5) as a fixed sleeve and a second clamping sleeve (6) as a movable sleeve. The second clamping sleeve (6) can pivot relative to the connecting rod (4) and can move along the connecting rod (4) between a position where it is sleeved on the first clamping sleeve (5) and a position away from the first clamping sleeve (5). The outer wall of the first clamping sleeve (5) is provided with a clamping tooth (51), and the inner wall of the second clamping sleeve (6) is provided with a clamping tooth (51) which is engaged with the clamping tooth (51). ) is provided with a tooth groove (61) adapted thereto, after the second clamping sleeve (6) is sleeved on the first clamping sleeve (5), the second clamping sleeve (6) can be restricted from pivoting by the cooperation between the clamping teeth (51) and the tooth groove (61), after the second clamping sleeve (6) is sleeved on the first clamping sleeve (5), the second clamping sleeve (6) can be restricted from moving in a direction away from the first clamping sleeve (5) by a bolt (200), and a baffle (62) is provided on the outer wall of the second clamping sleeve (6), and the baffle (62) can swing between a position close to or away from the curtain body (2) as the second clamping sleeve (6) pivots.

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