Double-spring-bolt mechanism used on automobile ceiling screen

Abstract

The utility model relates to a double-spring-bolt mechanism for an automobile ceiling screen, which comprises a pair of spring bolts which are respectively arranged on supports at the left end and the right end and can swing inwards and outwards, the middle parts of the spring bolts are hinged with the supports, the lower parts of the spring bolts are provided with tongues for locking the ceiling screen, and the upper parts of the spring bolts are also provided with push plates and connecting rods; the connecting rod is rotationally arranged between the pair of supports and is driven by a lock tongue actuator to rotate, eccentric wheels corresponding to the pair of lock tongues are arranged at the left end and the right end of the connecting rod respectively, the eccentric wheels at the two ends are in linkage with the connecting rod, push plates of the lock tongues correspond to the upper portions of the eccentric wheels, and the eccentric wheels at the two ends push the push plates corresponding to the lock tongues upwards; therefore, the tongue heads of the pair of lock tongues are driven to synchronously swing inwards to achieve locking, and the pair of lock tongues are driven by the elastic piece to reset to achieve unlocking. The pair of lock tongues can be simultaneously driven to rotate relatively to achieve locking or rotate oppositely to achieve unlocking, the cost is low, and the linkage performance is high.

Description

Technical Field

[0001] The utility model relates to the technical field of lock tongue mechanisms, in particular to a double lock tongue mechanism used on an automotive ceiling screen. Background Art

[0002] In CN218085350U, a ceiling-mounted screen with a novel unlocking and locking structure is disclosed, which includes a mounting base and a display screen assembly rotatably arranged on the mounting base. A lock groove is provided on the display screen assembly, and an unlocking and locking structure cooperating with the lock groove of the display screen assembly is provided on the mounting base. The unlocking and locking structure includes a lock tongue seat, a button, and a first elastic member. The lock tongue seat is rotatably arranged on the mounting base. A lock tongue cooperating with the lock groove is movably arranged on one side of the lock tongue seat close to the display screen assembly. The button is slidably arranged on the mounting base in a guiding manner and is located beside the lock tongue seat. The first elastic member can always give the button an elastic force for outward sliding and resetting. A stop block is provided on the lock tongue seat near the button, and a limit block is provided on the button near the lock tongue seat. When the button is not pressed inward, the limit block abuts against the stop block, thereby restricting the lock tongue seat from flipping away from the display screen assembly. When the button is pressed inward, the limit block is disengaged from the abutment with the stop block, and the lock tongue seat is flipped away from the display screen assembly under the action of the display screen assembly, and the lock tongue is driven to disengage from the lock groove. The driving of the lock tongue in this structure is relatively complex, and there is only one set of lock tongue and lock groove for cooperation and locking, so the structure is not stable enough. If it is a double-motor double-lock tongue mechanism, its cost is too high, and the control of the double lock tongues is not synchronous. Summary of the Utility Model

[0003] The purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a double lock tongue mechanism used on an automotive ceiling screen, which can simultaneously drive a pair of lock tongues to rotate relatively to achieve locking or rotate away from each other to achieve unlocking, with low cost and strong linkage.

[0004] The technical solution of the utility model: A double lock tongue mechanism used on an automotive ceiling screen includes:

[0005] A pair of lock tongues are respectively installed on the supports at the left and right ends and can swing in and out. The middle part of the lock tongue is hinged to the support, its lower part has a tongue for locking the ceiling screen, and its upper part also has a push plate.

[0006] A connecting rod is rotatably installed between a pair of supports and is driven to rotate by a lock tongue actuator. Eccentric wheels corresponding to the pair of lock tongues are provided at the left and right ends of the connecting rod. The eccentric wheels at both ends are linked with the connecting rod. The push plates of the lock tongues are located above the eccentric wheels. The push plates of the corresponding lock tongues are pushed upward by the eccentric wheels at both ends, so as to drive the tongues of the pair of lock tongues to swing inward synchronously to achieve locking. The pair of lock tongues are also driven by an elastic member to reset to achieve unlocking.

[0007] By adopting the above technical solution, the eccentric wheels at both ends are linked with the connecting rod and can rotate synchronously. The eccentric wheels at both ends push the push plates of the corresponding lock tongues upward, thereby driving a pair of lock tongues to rotate around the middle, and the tongues of a pair of lock tongues swing inward synchronously to lock the display screen and restrict the display screen from opening; when the eccentric wheels at both ends rotate downward and away from the push plates synchronously, the elastic member can drive the lock tongues to rotate and reset, and the tongues of a pair of lock tongues swing outward synchronously to reset to unlock the display screen and allow the display screen to be opened.

[0008] This product can simultaneously drive a pair of lock tongues to rotate relative to each other to achieve locking or rotate oppositely to achieve unlocking, with low cost and strong linkage.

[0009] Preferably, the center of the support has a notch for the lock tongue to swing, and the center of the lock tongue is mounted on the front and rear ends of the support via a rotating shaft. The elastic member is a torsion spring, which is sleeved on the rotating shaft, with one end of the torsion spring resting on the inner surface of the lower part of the lock tongue and the other end resting on the support. This facilitates the installation of the torsion spring and resets the lock tongue outward.

[0010] Preferably, the lower portion of the lock tongue and the opposing surface of the support are respectively provided with positioning grooves for positioning the end legs of the torsion spring, thereby preventing the torsion spring legs from being displaced.

[0011] Preferably, the support comprises an inner seat and support arms located at the front and rear ends of the inner seat, the two support arms cooperating with the inner seat to form the recess with an open outer end, the inner end of the inner seat being used to mount the connecting rod, the outer surface of the inner seat being used to abut against the end of the torsion spring, the lower surface of the two support arms being provided with an axial hole for inserting the rotating shaft, the lower end of the axial hole being open, and blocks being provided on the opposite inner walls of the axial hole, supported below the rotating shaft by a pair of blocks. The rotating shaft is inserted upward into the axial hole and supported by the pair of blocks, thereby preventing the rotating shaft from being separated from the support arms.

[0012] Preferably, the bolt actuator comprises a motor, which is driven by a gear structure or a pulley structure to the connecting rod.

[0013] Preferably, a rod sleeve is sleeved on at least one end of the connecting rod, wherein the rod sleeve is provided with an output gear for transmission on one end and the eccentric wheel is provided on the other end. The rod sleeve is circumferentially positioned with the connecting rod and rotates with the connecting rod through the output gear.

[0014] Preferably, rod sleeves are respectively provided at both ends of the connecting rod, and each rod sleeve is provided with an eccentric wheel and an output gear, and the output gears on the rod sleeves at both ends are of different sizes. When the gears are driven, the two output gears of different sizes can transmit different speeds.

[0015] Preferably, both the inner wall of the rod sleeve and the outer wall of the connecting rod have limiting planes, and the rod sleeve is circumferentially positioned on the connecting rod by the abutment of the two limiting planes; the rod sleeve and the connecting rod are also matched through a clamping block and a bayonet, thereby limiting the rod sleeve from axially disengaging from the connecting rod.

[0016] Preferably, the bayonet is provided on the outer periphery of the connecting rod. The clamping block is formed by a notch on the circumference of the outer end of the rod sleeve. A guiding inclined surface is further provided on the inner wall of the clamping block. The clamping block is also prone to deformation, so as to facilitate insertion into the bayonet, and the guiding inclined surface on the clamping block facilitates sliding into the bayonet.

[0017] Preferably, it further includes an actuator mounting bracket, which includes an upper plate, side plates on the left and right sides, and a rear end plate. An installation shaft is installed between the two side plates. A driving gear and a worm gear are provided on the installation shaft. The driving gear is directly or indirectly engaged with the output gear. The motor is installed on the rear end plate, and a worm engaged with the worm gear is provided on the motor transmission shaft. The lower ends of the two side plates are bent backward to form clamping plates. Each clamping plate has two "U" - shaped fork openings with different opening directions. The connection and positioning are achieved by inserting the edge of the fork opening into the circumferential groove of the clamping wheel. The installation through the mounting bracket is convenient, and the two "U" - shaped bayonet openings on the clamping plate have different opening directions, which can effectively prevent detachment from the clamping wheel. The clamping wheel can be installed on the base of the ceiling - mounted screen through screws. Description of the Drawings

[0018] Figure 1 Structural diagram of a specific embodiment of the present utility model;

[0019] Figure 2 Driving structure diagram of a locking tongue in a specific embodiment of the present utility model;

[0020] Figure 3 Structural diagram of the locking tongue in a specific embodiment of the present utility model;

[0021] Figure 4 Bottom surface structural diagram of the support in a specific embodiment of the present utility model;

[0022] Figure 5 Structural diagram of the rod sleeve in a specific embodiment of the present utility model;

[0023] Figure 6 Structural diagram of the connecting rod in a specific embodiment of the present utility model;

[0024] Figure 7 Cooperation diagram of the rod sleeve and the connecting rod in a specific embodiment of the present utility model;

[0025] Figure 8 Installation diagram of the locking tongue actuator in a specific embodiment of the present utility model;

[0026] Figure 9 Motor drive diagram in a specific embodiment of the present utility model;

[0027] Figure 10 Structural diagram of the actuator mounting bracket in a specific embodiment of the present utility model.

[0028] In the figure: lock tongue 1, tongue 1a, push plate 1b, support 2, recess 21, inner seat 2a, support arm 2b, shaft hole 2b1, clamping block 2b2, connecting rod 3, eccentric wheel 4, elastic member 5, rotating shaft 6, positioning groove A, motor 7, rod sleeve 8, notch 81, output gear 9, limiting plane B, clamping block C1, guide slope C11, bayonet C2, actuator mounting frame 10, upper plate 101, side plate 102, clamping plate 1021, "U"-shaped fork 10211, rear end plate 103, mounting shaft 11, driving gear 12, worm gear 13, worm 14, clamping wheel 15, annular groove 151. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in this embodiment with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] like Figures 1 - 10 As shown, the utility model is a double-lock tongue mechanism used on a car ceiling screen, comprising:

[0031] A pair of lock tongues 1 are mounted on the supports 2 at the left and right ends respectively and can swing inwards and outwards. The middle part of the lock tongue 1 is hinged to the support 2. The lower part has a tongue 1a for locking the ceiling screen, and the upper part also has a push plate 1b.

[0032] The connecting rod 3 is rotatably mounted between a pair of supports 2 and driven to rotate by the lock tongue actuator. Eccentric wheels 4 corresponding to a pair of lock tongues are provided at the left and right ends of the connecting rod 3. The eccentric wheels are set to deviate from the rotation center of the connecting rod. The eccentric wheels 4 at both ends are linked with the connecting rod 3. The push plate 1b of the lock tongue 1 corresponds to the top of the eccentric wheel 4. The eccentric wheels 4 at both ends push the push plate 1b of the corresponding lock tongue 1 upward, thereby driving the tongues 1a of a pair of lock tongues 1 to swing inward synchronously to achieve locking. The pair of lock tongues 1 are also driven by the elastic member 5 to reset to achieve unlocking; the lock tongue actuator includes a motor 7, which is driven by a gear structure or a pulley structure with the connecting rod 3.

[0033] Specifically, a rod sleeve 8 is sleeved on at least one end of the connecting rod 3. An output gear 9 for transmission is provided on one end of the rod sleeve 8, and the eccentric wheel 4 is provided on the other end. The output gear and eccentric wheel are integrally provided on the rod sleeve, or the output gear is directly provided on the connecting rod. Specifically, a rod sleeve 8 is sleeved on each end of the connecting rod 3, and each rod sleeve 8 is provided with an eccentric wheel 4 and an output gear 9. The output gears 9 on the rod sleeves 8 at both ends are of different sizes.

[0034] Specifically, both the inner wall of the rod sleeve 8 and the outer wall of the connecting rod 3 have a limiting plane B. The circumferential positioning of the rod sleeve 8 on the connecting rod 3 is realized by the abutment of the two limiting planes B. The rod sleeve 8 and the connecting rod 3 are also matched by a first clamping block C1 and a clamping notch C2, so as to limit the axial outward detachment of the rod sleeve 8 from the connecting rod 3. The clamping notch C2 is arranged on the outer circumference of the connecting rod 3. On the circumference of the outer end of the rod sleeve 8, there is the first clamping block C1 separated by a notch 81. The limiting plane A on the rod sleeve 8 and the first clamping block C1 are arranged oppositely, and a guiding inclined plane C11 is also provided on the inner wall of the first clamping block C1. Of course, the first clamping block C1 can also be integrally connected to the connecting rod 3.

[0035] Specifically, the middle part of the support 2 has a notch 21 for the swinging of the locking tongue 1. The middle part of the locking tongue 1 is installed on the front and rear ends of the support 2 through a rotating shaft 6. The elastic member 5 is a torsion spring, which is sleeved on the rotating shaft 6, and one end foot abuts against the inner surface of the lower part of the locking tongue 1, and the other end foot abuts against the support 2. Positioning grooves A for positioning the end feet of the torsion spring are respectively provided on the opposite surfaces of the lower part of the locking tongue 1 and the support 2. The support 2 has an inner seat 2a and support arms 2b located at the front and rear ends of the inner seat. The support arms and the inner seat are integrally arranged. The notch 21 with an open outer end is formed by the cooperation of the two support arms 2b and the inner seat 2a. The inner end of the inner seat 2a is used for installing the connecting rod 3, and the outer surface of the inner seat 2a is used for abutting against the end feet of the torsion spring. On the lower surfaces of the two support arms 2b, there are shaft holes 2b1 for the insertion of the rotating shaft 6. The lower ends of the shaft holes 2b1 are open, and clamping blocks 2b2 are also provided on the opposite inner walls of the shaft holes 2b1. The rotating shaft 6 is supported below by the cooperation of a pair of clamping blocks 2b2.

[0036] Specifically, it further includes an actuator mounting bracket 10. The actuator mounting bracket 10 includes an upper plate 101, side plates 102 located on the left and right sides, and a rear end plate 103 which are integrally arranged. An installation shaft 11 is also installed between the two side plates 102. A driving gear 12 and a worm gear 13 are provided on the installation shaft 11. The driving gear 12 is directly or indirectly engaged with the output gear 9. The motor 7 is installed on the rear end plate 103, and a worm 14 engaged with the worm gear 13 is also provided on the motor transmission shaft. The lower ends of the two side plates 102 are bent backward to form clamping plates 1021. Each clamping plate 1021 has two "U" - shaped fork openings 10211 with different opening directions. The connection and positioning are realized by inserting the edges of the fork openings 10211 into the circumferential ring groove 151 of the clamping wheel 15.

[0037] Working principle: The motor 7 can drive the output gear 9 on one of the rod sleeves 8 to rotate, and drive the connecting rod 3. The eccentric wheels 4 at both ends are linked with the connecting rod 3 and can rotate synchronously. The eccentric wheels 4 at both ends push the push plates 1b of the corresponding locking tongues 1 upward, so as to drive a pair of locking tongues 1 to rotate around the middle rotating shaft. The upper push plates 1b swing outward, and the tongues 1a of the pair of locking tongues 1 swing inward synchronously to lock the display screen and limit the opening of the display screen.

[0038] When the eccentric wheels 4 at both ends synchronously rotate downward away from the push plate 1b, at this time, the elastic member 5 can drive the locking tongues to rotate and reset, and the tongues 1a of the pair of locking tongues 1 will synchronously swing outward to reset to unlock the display screen, so that the display screen can be opened.

[0039] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back...) are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "coupling", "connection", "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. A double-lock tongue mechanism used in an automotive overhead screen, characterized in that, include: A pair of lock tongues (1) are respectively mounted on the supports (2) at the left and right ends and can swing inward and outward. The middle part of the lock tongue (1) is hinged to the support (2), and the lower part thereof has a tongue (1a) for locking the ceiling screen, and the upper part also has a push plate (1b). A connecting rod (3) is rotatably mounted between a pair of supports (2) and driven to rotate by a lock tongue actuator. Eccentric wheels (4) corresponding to a pair of lock tongues are provided at the left and right ends of the connecting rod (3). The eccentric wheels (4) at both ends are linked to the connecting rod (3). The push plates (1b) of the lock tongues (1) correspond to the upper part of the eccentric wheels (4). The eccentric wheels (4) at both ends push the push plates (1b) corresponding to the lock tongues (1) upward, thereby driving the tongues (1a) of the pair of lock tongues (1) to swing inward synchronously to achieve locking. The pair of lock tongues (1) are also driven by the elastic member (5) to reset to achieve unlocking.

2. The double-locking tongue mechanism used on the ceiling screen of an automobile according to claim 1, characterized in that: The middle portion of the support (2) has a notch (21) for the lock tongue (1) to swing, and the middle portion of the lock tongue (1) is mounted on the front and rear ends of the support (2) via a rotating shaft (6). The elastic member (5) is a torsion spring, which is sleeved on the rotating shaft (6) and has one end leg against the inner surface of the lower portion of the lock tongue (1) and the other end leg against the support (2).

3. The double-lock tongue mechanism used in the overhead console of an automobile according to claim 2, characterized in that: Positioning grooves (A) for positioning the end legs of the torsion spring are respectively provided on the opposite surfaces of the lower portion of the lock tongue (1) and the support (2).

4. A double-locking tongue mechanism used in an automotive ceiling screen according to claim 2 or 3, characterized in that: The support (2) comprises an inner seat (2a), support arms (2b) located at the front and rear ends of the inner seat, the two support arms (2b) cooperate with the inner seat (2a) to form the recess (21) with an open outer end, the inner end of the inner seat (2a) is used to install the connecting rod (3), the outer side of the inner seat (2a) is used to abut against the end foot of the torsion spring, and an axial hole (2b1) for inserting the rotating shaft (6) is provided on the lower side of the two support arms (2b), the lower end of the axial hole (2b1) is open, and there are also clamping blocks (2b2) on the two opposite inner walls of the axial hole (2b1), which are supported below the rotating shaft (6) by a pair of clamping blocks (2b2).

5. A double-locking tongue mechanism used in an automotive ceiling screen according to claim 1 or 2 or 3, characterized in that: The bolt actuator comprises a motor (7), which is driven by a gear structure or a pulley structure to the connecting rod (3).

6. The double-locking tongue mechanism used on the ceiling screen of an automobile according to claim 5, characterized in that: A rod sleeve (8) is sleeved on at least one end of the connecting rod (3); an output gear (9) for transmission is provided on one end of the rod sleeve (8), and the eccentric wheel (4) is provided on the other end.

7. The double-lock tongue mechanism used in the overhead screen of an automobile according to claim 6, characterized in that: Rod sleeves (8) are respectively provided at both ends of the connecting rod (3), and each rod sleeve (8) is provided with an eccentric wheel (4) and an output gear (9). The output gears (9) on the rod sleeves (8) at both ends are of different sizes.

8. The double-lock tongue mechanism used on the ceiling screen of an automobile according to claim 6, wherein: The inner wall of the rod sleeve (8) and the outer wall of the connecting rod (3) both have limiting planes (B), and the rod sleeve (8) is circumferentially positioned on the connecting rod (3) by the abutment of the two limiting planes (B); the rod sleeve (8) and the connecting rod (3) are also engaged via a clamping block (C1) and a bayonet (C2), thereby limiting the rod sleeve (8) from axially disengaging from the connecting rod (3).

9. The double-lock tongue mechanism used on the ceiling screen of an automobile according to claim 8, wherein: The bayonet (C2) is provided on the outer periphery of the connecting rod (3), and has a clamping block (C1) divided by a notch (81) in the circumferential direction of the outer end of the rod sleeve (8), and a guiding inclined surface (C11) is also provided on the inner wall of the clamping block (C1).

10. The double-lock tongue mechanism used in the ceiling screen of an automobile according to claim 6, characterized in that: It further includes an actuator mounting bracket (10), the actuator mounting bracket (10) includes an upper plate (101), side plates (102) located on the left and right sides, and a rear end plate (103). An installation shaft (11) is further installed between the two side plates (102). A driving gear (12) and a worm gear (13) are provided on the installation shaft (11). The driving gear (12) is directly or indirectly engaged with the output gear (9). The motor (7) is installed on the rear end plate (103), and a worm (14) engaged with the worm gear (13) is provided on the motor transmission shaft. The lower ends of the two side plates (102) are also bent backward to form clamping plates (1021). Each clamping plate (1021) has two "U"-shaped fork openings (10211) with different opening directions. The connection and positioning are achieved by inserting the edges of the fork openings (10211) into the circumferential ring groove (151) of the clamping wheel (15).

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