Door fence lock and retractable door fence with same

Abstract

The utility model discloses a door fence lock and a retractable door fence with the same, which are characterized in that a vertical reciprocating motion function is added to a knob of the door fence lock, an elastic force for ascending motion is applied to the knob through a first top spring, and a limiting structure is arranged in the door fence lock. And the locking device is used for locking the knob to limit the pivoting action of the knob after the knob ascends to a preset position. During operation, the knob needs to be pressed downwards to overcome the elastic force applied by the first jacking spring, so that the knob moves downwards to a certain position and then is separated from the limitation of the limiting structure, then the knob is rotated, the unlocking action of the rotating shaft of the retractable door fence can be completed, and after the knob is reversely rotated to lock the rotating shaft, the first jacking spring applies force to enable the knob to automatically ascend to be limited by the limiting structure. Compared with the prior art, the control action of the rotary knob is added, children are prevented from easily operating and unlocking by themselves, it is guaranteed that the retractable door fence is not easily unlocked by the children, and the safety performance is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic door bars, in particular to a door bar lock and a telescopic door bar having the same. Background Art

[0002] Families with infants often install a retractable protective door bar on the indoor door to prevent the infants from getting lost or getting hurt. This type of protective door bar mainly includes an upper and lower fixed seat, a reel assembly, a curtain body, etc. The curtain body is connected to the reel assembly and can be pulled out or automatically rolled up by the reel assembly.

[0003] Generally, a locking mechanism is provided in the upper fixing seat. After locking, the rotating shaft of the reel assembly cannot rotate, and the curtain body cannot be unfolded or retracted. After unlocking, the reel assembly will automatically rotate to realize automatic retraction of the curtain body.

[0004] There are still some problems with the telescopic protective gates currently on the market. For example, the knob-type locking structure of the telescopic protective gates. The scroll assembly can be locked or unlocked by turning the knob. The operation is very simple, but infants and young children can also unlock it by themselves, which poses a safety hazard.

[0005] Therefore, the applicant believes that a telescopic door lock which is simple and not easily unlocked by infants and young children should be proposed. Utility Model Content

[0006] The main purpose of the utility model is to provide a door rail lock and a telescopic door rail having the same, aiming to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides a door rail lock, comprising a housing, a connection end for connecting to a rotating shaft of a telescopic door rail can be pivotally provided at the bottom of the housing, and a knob-type locking structure is provided, the knob of the knob-type locking structure can be pivoted between a position where the connection end is locked and unlocked, the knob can also make vertical reciprocating motion relative to the housing, and a first top spring is provided for applying elastic force to the knob to make an upward motion, a limiting structure is provided inside the housing, and after the knob rises to a predetermined position, the knob can be limited by the limiting structure to make a pivoting motion;

[0008] The limiting structure includes a limiting portion provided on the knob and a first limiting groove and a second limiting groove provided on the inner top wall of the housing. The limiting portion can swing between a position vertically aligned with the first limiting groove and a position vertically aligned with the second limiting groove as the knob pivots, and can enter the first limiting groove or the second limiting groove as the knob moves upward to limit the pivoting of the knob, and exit the first limiting groove or the second limiting groove as the knob moves downward to release the restriction on the knob;

[0009] The locking structure includes a locking module and an unlocking module.

[0010] The locking module includes a ratchet, a pawl and a locking member, the ratchet can be pivotally mounted inside the housing and fixedly connected to the connecting end, the pawl can be pivotally mounted on one side of the ratchet and can swing between a position engaged with and away from the ratchet, a second top spring is further provided, the second top spring is used to apply an elastic force to the pawl to swing in a direction of engagement with the ratchet, the locking member can be pivotally mounted to a position on one side of the pawl away from the ratchet, the locking member can swing between a position engaged with the pawl to lock the pawl and a position away, and a third top spring is further provided, the third top spring is used to apply an elastic force to the locking member to swing in a direction of engagement with the pawl;

[0011] The unlocking module includes an unlocking member linked to the knob, the unlocking member can move forward or backward with the pivoting of the knob, and can sequentially force the locking member to swing away from the pawl and the pawl to swing away from the ratchet wheel during the forward movement to release the locking of the ratchet wheel;

[0012] The top of the locking member and the top of the pawl are respectively formed with a first forcing portion and a second forcing portion, and the bottom wall of the unlocking member is spaced apart with a first pushing portion for contacting the first forcing portion and a second pushing portion for contacting the second forcing portion. During the forward movement of the unlocking member, the first pushing portion can cooperate with the first forcing portion to force the locking member to swing away from the pawl, and the second pushing portion can cooperate with the second forcing portion to force the pawl to swing away from the ratchet wheel;

[0013] The unlocking module includes a seat body fixed inside the shell, an installation space is formed inside the seat body, an unlocking gear connected to the knob can be pivotally installed in the installation space, the unlocking member is a rack arranged in the installation space and meshing with the unlocking gear, and the unlocking gear can drive the rack to move forward or backward when it pivots with the pivoting of the knob, the first push part and the second push part are formed on the bottom wall of the rack, and the bottom wall of the installation space is provided with an avoidance hole that runs through the bottom wall of the seat body, which is used for avoiding the first push part and the second push part.

[0014] Preferably, the knob is pivotally mounted on the housing via a connecting shaft, the cross-section of the connecting shaft is non-circular, and the lower end of the connecting shaft passes through the axis core position of the unlocking gear, so that when the knob is pivoted, the unlocking gear can be driven to pivot via the connecting shaft.

[0015] Preferably, the connecting shaft fixing sleeve is provided with a circular plate-shaped limit piece, and the surrounding wall of the limit piece is formed with at least one of the limit parts. The inner top wall of the shell is provided with an arc groove corresponding to the swing trajectory of the limit part, and the two end portions of the arc groove extend toward the direction of the knob to form the first limit groove and the second limit groove.

[0016] Preferably, the limiting member is provided with a slot penetrating through its top wall and bottom wall, and a plug post capable of being inserted into the slot is formed inside the knob corresponding to the position of the slot. After the plug post is inserted into the slot, the limiting member and the knob are fixedly connected by locking with a screw.

[0017] Preferably, the housing includes an upper cover and a lower seat. After the upper cover and the lower seat are assembled to form the housing, they are locked by screws or fixed by a snap structure.

[0018] The present utility model also provides a retractable door barrier, including a door barrier lock, and the door barrier lock is the above-mentioned door barrier lock.

[0019] The technical solution of the present utility model adds a function of reciprocating vertical movement to the knob of the door barrier lock, applies an upward movement elastic force to the knob through the first top spring, and also sets a limiting structure inside the door barrier lock to lock the knob after the knob moves upward to a predetermined position to limit the pivoting action of the knob. During operation, it is necessary to first press down the knob to overcome the elastic force applied by the first top spring, so that the knob moves downward to a certain position and then breaks away from the restriction of the limiting structure, and then rotate the knob to complete the unlocking action of the rotating shaft of the retractable door barrier. After rotating the knob in the reverse direction to lock the rotating shaft, the first top spring applies force to make the knob automatically rise to be restricted by the limiting structure, thereby completing the locking action of the rotating shaft and the locking action of the knob. Compared with the traditional one, the present utility model increases the control actions of the knob, avoids children from easily operating the unlocking by themselves, ensures that the retractable door barrier is not easily unlocked by children, and effectively improves the safety performance. Description of the Drawings

[0020] Figure 1 is a perspective view of the door barrier lock;

[0021] Figure 2 is a partial exploded view of the door barrier lock;

[0022] Figure 3 is a matching view of the upper cover and the limiting member;

[0023] Figure 4 is a schematic view of the inner side of the upper cover;

[0024] Figure 5 is a schematic view of the retractable door barrier. Detailed Embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0026] 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.

[0027] In addition, if there are descriptions such as "first" or "second" involved in the embodiments of the present utility model, then such descriptions of "first" or "second" are only for descriptive purposes and cannot be construed 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.

[0028] The present utility model provides a gate lock.

[0029] In the embodiments of the present utility model, as Figures 1 to 5 shown, the gate lock includes a housing. A connection end 100 for connecting with the rotating shaft of the retractable gate is pivotally provided at the bottom of the housing, and a knob-type locking structure is provided. The knob 200 of the knob-type locking structure can pivot between positions for locking and unlocking the connection end 100. The knob 200 can also perform a vertical reciprocating motion relative to the housing, and a first top spring (not shown) is provided to apply an upward movement elastic force to the knob 200. A limiting structure is provided inside the housing, and after the knob 200 rises to a predetermined position, the limiting structure can limit the knob 200 from performing a pivoting action.

[0030] The technical solution of the present utility model adds a function of vertical reciprocating motion to the knob of the gate lock, applies an upward movement elastic force to the knob through the first top spring, and also sets a limiting structure inside the gate lock to lock the knob after the knob rises to a predetermined position to limit the pivoting action of the knob. During operation, it is necessary to first press down the knob to overcome the elastic force applied by the first top spring, so that the knob moves downward to a certain position and then gets out of the limitation of the limiting structure, and then rotate the knob to complete the unlocking action of the rotating shaft of the retractable gate. After rotating the knob in the reverse direction to lock the rotating shaft, the first top spring applies force to make the knob automatically rise to be restricted by the limiting structure, thereby completing the locking action of the rotating shaft and the locking action of the knob. Compared with the traditional one, the present utility model increases the manipulation action of the knob, avoids children easily operating the unlocking by themselves, ensures that the retractable gate is not easily unlocked by children, and effectively improves the safety performance.

[0031] Specifically, the limiting structure includes a limiting portion 01 provided on the knob 200, a first limiting groove 02 and a second limiting groove 03 provided on the inner top wall of the housing. The limiting portion 01 can swing between a position aligned with the first limiting groove 02 and a position aligned with the second limiting groove 03 along with the pivoting of the knob 200, and can enter the first limiting groove 02 or the second limiting groove 03 along with the upward movement of the knob 200 to limit the pivoting of the knob 200, and can exit the first limiting groove 02 or the second limiting groove 03 along with the downward movement of the knob 200 to release the restriction on the knob 200, so that the knob 200 can be restricted by the limiting portion 01 whether it is in the state of locking the ratchet wheel 11 or unlocking the ratchet wheel 11, which increases the operability and prevents children from easily operating the unlocking by themselves.

[0032] Specifically, the locking structure includes a locking module and an unlocking module. The locking module refers to the prior art and mainly includes a ratchet wheel 11, a pawl 12 and a locking member 13. The ratchet wheel 11 is pivotally mounted inside the housing and fixedly connected to the connecting end 100. The pawl 12 is pivotally mounted on one side of the ratchet wheel 11 and can swing between a position engaged with the ratchet wheel 11 and a position away from it. There is also a second top spring (not shown), and the second top spring is used to apply an elastic force to the pawl 12 to swing in the direction of engaging with the ratchet wheel 11. The locking member 13 is pivotally mounted at a position on the side of the pawl 12 away from the ratchet wheel 11. The locking member 13 can swing between a position engaging with the pawl 12 to lock the pawl 12 and a position away from it. There is also a third top spring (not shown), and the third top spring is used to apply an elastic force to the locking member 13 to swing in the direction of engaging with the pawl 12.

[0033] The unlocking module includes an unlocking member 21 linked to the knob 200. The unlocking member 21 can move forward or backward along with the pivoting of the knob 200, and can successively force the locking member 13 to swing away from the pawl 12 and force the pawl 12 to swing away from the ratchet wheel 11 during the forward movement to release the locking of the ratchet wheel 11.

[0034] Specifically, a first actuating portion 131 and a second actuating portion 121 are respectively formed on the top of the locking member 13 and the top of the pawl 12. First pushing portions 211 for contacting the first actuating portion 131 and second pushing portions 212 for contacting the second actuating portion 121 are spaced and formed on the bottom wall of the unlocking member 21. During the forward movement of the unlocking member 21, the locking member 13 can be forced to swing away from the pawl 12 by the cooperation of the first pushing portion 211 and the first actuating portion 131, and the pawl 12 can be forced to swing away from the ratchet wheel 11 by the cooperation of the second pushing portion 212 and the second actuating portion 121.

[0035] Specifically, the unlocking module includes a base body 22 fixed inside the housing. An installation space is formed inside the base body 22. An unlocking gear 23 connected to the knob 200 is pivotally installed in the installation space. The unlocking member 21 is a rack provided in the installation space and meshing with the unlocking gear 23. When the unlocking gear 23 pivots as the knob 200 pivots, it can drive the rack to move forward or backward. The first pushing portion 211 and the second pushing portion 212 are formed on the bottom wall of the rack. An avoidance hole (not shown) penetrating the bottom wall of the base body 22 is formed on the bottom wall of the installation space for avoiding the first pushing portion 211 and the second pushing portion 212.

[0036] Specifically, the knob 200 is pivotally installed on the housing through a connecting shaft 201. The cross-section of the connecting shaft 201 is non-circular. The lower end of the connecting shaft 201 passes through the axial center position of the unlocking gear 23, so that when the knob 200 pivots, it can drive the unlocking gear 23 to pivot through the connecting shaft 201.

[0037] Specifically, the lower end of the connecting shaft can be inserted into or separated from the unlocking gear along with the vertical reciprocating movement of the knob, or the lower end of the connecting shaft remains movably inserted into the unlocking gear.

[0038] Specifically, a circular plate-shaped limiting member 31 is fixedly sleeved on the connecting shaft 201. At least one limiting portion 01 is formed on the peripheral wall of the limiting member 31. An arc-shaped groove 411 corresponding to the swinging track of the limiting portion 01 is formed on the inner top wall of the housing. The two ends of the arc-shaped groove 411 extend towards the knob 200 to form the first limiting groove 02 and the second limiting groove 03. In this embodiment, two limiting portions 01 are formed on the peripheral wall of the limiting member 31, and the two limiting portions 01 are mirror-symmetrically distributed on the limiting member.

[0039] Specifically, a slot 311 penetrating the top wall and the bottom wall of the limiting member 31 is formed on the limiting member 31. A plug post (not shown) that can be inserted into the slot 311 is formed at a position corresponding to the slot 311 on the inner side of the knob 200. After the plug post is inserted into the slot 311, the limiting member 31 and the knob 200 are fixedly connected by screwing.

[0040] Specifically, the housing includes an upper cover 41 and a lower seat 42. After the upper cover 41 and the lower seat 42 are assembled to form the housing, they are fixed by screwing or by a snap structure.

[0041] Specifically, the housing is detachably fixed to the installation position through a quick-release structure.

[0042] It should be noted that the quick-release structure can refer to the prior art, and the specific structural principle thereof will not be elaborated herein.

[0043] The present utility model also provides a retractable gate railing, which includes a gate railing lock. For the specific structure of the gate railing lock, please refer to the above embodiments. Since this retractable gate railing adopts all the technical solutions of all the embodiments of the above gate railing lock, it has at least all the beneficial effects brought by the technical solutions of the above gate railing lock, and will not be elaborated one by one here.

[0044] It should be noted that for other structures of the retractable gate railing, reference can be made to the prior art, and the specific structural principle thereof will not be elaborated here.

[0045] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included in the patent protection scope of the present utility model.

Claims

1. A door rail lock, comprising a housing, a connection end (100) for connecting to a rotating shaft of a telescopic door rail being pivotably provided at the bottom of the housing, and a knob-type locking structure being provided, wherein a knob (200) of the knob-type locking structure is pivotable between positions for locking and unlocking the connection end (100), characterized in that: The knob (200) can also perform vertical reciprocating motion relative to the housing, and is provided with a first top spring for applying elastic force to the knob (200) to perform upward motion, and a limiting structure is provided inside the housing, and after the knob (200) is raised to a predetermined position, the limiting structure can limit the knob (200) from performing pivoting motion; The limiting structure comprises a limiting portion (01) provided on the knob (200) and a first limiting groove (02) and a second limiting groove (03) provided on the inner top wall of the shell; the limiting portion (01) can swing between a position vertically aligned with the first limiting groove (02) and a position vertically aligned with the second limiting groove (03) as the knob (200) pivots, and can enter the first limiting groove (02) or the second limiting groove (03) as the knob (200) moves upward to limit the pivoting of the knob (200), and exit the first limiting groove (02) or the second limiting groove (03) as the knob (200) moves downward to release the restriction on the knob (200); The locking structure includes a locking module and an unlocking module. The locking module comprises a ratchet (11), a pawl (12) and a locking member (13); the ratchet (11) can be pivotally mounted inside the housing and fixedly connected to the connecting end (100); the pawl (12) can be pivotally mounted on one side of the ratchet (11) and can swing between a position engaged with and away from the ratchet (11); a second top spring is further provided, the second top spring is used to apply an elastic force to the pawl (12) to swing in a direction of engagement with the ratchet (11); the locking member (13) can be pivotally mounted on a side of the ratchet (12) away from the ratchet (11); the locking member (13) can swing between a position engaged with the pawl (12) to lock the pawl (12) and a position away from the ratchet; a third top spring is further provided, the third top spring is used to apply an elastic force to the locking member (13) to swing in a direction of engagement with the pawl (12); The unlocking module comprises an unlocking member (21) linked to the knob (200), the unlocking member (21) being capable of moving forward or backward as the knob (200) pivots, and in the process of moving forward, the unlocking member (21) is capable of sequentially forcing the locking member (13) to swing in a direction away from the pawl (12) and forcing the pawl (12) to swing in a direction away from the ratchet (11) to release the lock of the ratchet (11); The top of the locking member (13) and the top of the pawl (12) are respectively formed with a first forcing portion (131) and a second forcing portion (121); the bottom wall of the unlocking member (21) is spaced apart from each other with a first pushing portion (211) for contacting the first forcing portion (131) and a second pushing portion (212) for contacting the second forcing portion (121); during the forward movement of the unlocking member (21), the first pushing portion (211) cooperates with the first forcing portion (131) to force the locking member (13) to swing in a direction away from the pawl (12); and the second pushing portion (212) cooperates with the second forcing portion (121) to force the pawl (12) to swing in a direction away from the ratchet (11); The unlocking module comprises a seat body (22) fixed inside the shell, an installation space is formed inside the seat body (22), an unlocking gear (23) connected to the knob (200) can be pivotally installed in the installation space, the unlocking member (21) is a rack arranged in the installation space and meshing with the unlocking gear (23), the unlocking gear (23) can drive the rack to move forward or backward when it pivots with the pivoting of the knob (200), the first push part (211) and the second push part (212) are formed on the bottom wall of the rack, and the bottom wall of the installation space is provided with an avoidance hole penetrating the bottom wall of the seat body (22), which is used for avoiding the first push part (211) and the second push part (212).

2. The door lock according to claim 1, characterized in that: The knob (200) is pivotally mounted on the housing via a connecting shaft (201); the connecting shaft (201) has a non-circular cross section; the lower end of the connecting shaft (201) passes through the axis of the unlocking gear (23), so that when the knob (200) is pivoted, the unlocking gear (23) can be driven to pivot via the connecting shaft (201).

3. The door lock according to claim 2, characterized in that: The connecting shaft (201) is fixedly sleeved with a circular plate-shaped limiting member (31), the peripheral wall of the limiting member (31) is formed with at least one limiting portion (01), the inner top wall of the shell is provided with an arc-shaped groove (411) corresponding to the swing trajectory of the limiting portion (01), and the two end portions of the arc-shaped groove (411) extend toward the direction of the knob (200) to form the first limiting groove (02) and the second limiting groove (03).

4. The door lock according to claim 3, characterized in that: The limiting member (31) is provided with a slot (311) penetrating the top wall and the bottom wall thereof, and a plug post which can be inserted into the slot (311) is formed at a position on the inner side of the knob (200) corresponding to the slot (311). After the plug post is inserted into the slot (311), the limiting member (31) and the knob (200) are fixedly connected by locking with screws.

5. The door lock according to claim 1, characterized in that: The housing comprises an upper cover (41) and a lower seat (42); the upper cover (41) and the lower seat (42) are assembled to form the housing and then locked by screws or fixed by a snap-fit ​​structure.

6. A telescopic gate, characterized in that: The invention comprises a door bar lock as claimed in any one of claims 1 to 5.

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