A lock structure of a roller cover

Abstract

The utility model discloses a lock structure of roller blind cover, including face cover and install on the upper cover of face cover, and the upper cover and face cover enclose and form the sliding cavity, and the button subassembly of partial insertion into the sliding cavity is slidably installed on the face cover, and the reset spring of push button subassembly reset is integrated on the face cover, the bottom plate is installed on the face cover bottom, and the first open fork spare and second open fork spare are rotatably installed on the bottom plate, and the first lock bolt subassembly is connected on the first open fork spare, and the second lock bolt subassembly is connected on the second open fork spare, the lock release connecting rod spare is rotatably installed on the bottom plate, and the first swing column that extends between the first open fork spare and second open fork spare is equipped on the lock release connecting rod spare, and the second swing column that extends the face cover is equipped on the lock release connecting rod spare, and the button subassembly is used for pushing the second swing column, button subassembly is located on the face cover, realizes internal unlocking on the outside of roller blind cover to can not open the tail case rear door and realizes the unlocking operation, and the unlocking process is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of roller shutter cover technology, and in particular to a locking structure for roller shutter covers. Background Technology

[0002] Installing a roll-up cover on the tailgate of a pickup truck provides protection for the interior. When the cover is closed, it is locked primarily through a locking mechanism on the cover that engages with a side bar. Current lock designs, to prevent unauthorized opening, integrate the unlocking mechanism into the tailgate. To open the cover, the rear tailgate must first be opened, and then an internal pull cord is used for unlocking, making the process overly cumbersome. Utility Model Content

[0003] (I) Technical Issues

[0004] The purpose of this utility model is to provide a locking structure for a roller shutter cover, which solves the problem that the locking structure of the roller shutter cover in the prior art requires opening the rear door of the trunk to unlock it from the inside, which is a rather cumbersome process.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A locking structure for a roller shutter cover includes a front cover and an upper cover mounted on the front cover. The upper cover and the front cover together form a sliding cavity. A button assembly partially extending into the sliding cavity is slidably mounted on the front cover. A return spring for pushing the button assembly to reset is integrated on the front cover. A base plate is mounted on the bottom of the front cover. A first fork and a second fork are rotatably mounted on the base plate. A first latch assembly is connected to the first fork, and a second latch assembly is connected to the second fork. An unlocking linkage is rotatably mounted on the base plate. The unlocking linkage has a first swing post extending between the first and second forks, and a second swing post extending out of the front cover. The button assembly is used to push the second swing post.

[0008] Preferably, the button assembly includes a button housing slidably mounted on the faceplate, a sliding piece slidably mounted inside the button housing, a lock cylinder for pulling the sliding piece to slide on the button housing, and an arch-shaped structure for protruding toward the second swing post on the sliding piece. When the lock cylinder is in the unlocked state, the arch-shaped structure is aligned with the second swing post.

[0009] Preferably, a keyhole cover for covering the lock hole of the lock cylinder is rotatably mounted on the button housing, and a torsion spring for driving the keyhole cover to return to its original position is provided inside the button housing.

[0010] Preferably, the sliding piece has two sliding strip holes spaced apart, the fastener passes through the sliding strip holes and is locked onto the button housing, the fastener is fitted with a first washer and a second washer, and the fastener is fitted with a first spring located between the first washer and the second washer.

[0011] Preferably, the unlocking linkage is provided with a connecting part located on one side of the second swing column, and the connecting part is provided with a locking contact.

[0012] Preferably, a pulling member is rotatably mounted on the bottom of the base plate, the pulling member is provided with a protrusion that extends into the unlocking linkage, and the unlocking linkage is provided with a slot for inserting the protrusion; a rope is connected to the pulling member.

[0013] Preferably, the first locking tongue assembly includes a first steel wire rope connected to the first fork member, the end of the first steel wire rope is connected to a first locking tongue clip, and a second spring is sleeved on the first steel wire rope for pushing the first locking tongue clip to move outward to reset.

[0014] Preferably, the second locking tongue assembly includes a second steel wire rope connected to the second fork, the end of the second steel wire rope being connected to a second locking tongue clip, and a third spring being sleeved on the second steel wire rope for pushing the second locking tongue clip to move outward to reset.

[0015] Preferably, the first fork member has an arc-shaped recess and an arc-shaped protrusion that mates with the arc-shaped recess.

[0016] Preferably, when the first fork and the second fork are in a closed state, they enclose and form a receiving groove, and the first swing column is located in the receiving groove.

[0017] (III) Beneficial Effects

[0018] When the unlocking linkage rotates relative to the base plate, the first swing pin extends between the first and second forks, causing the first and second forks to open in opposite directions, thereby pulling the first and second latch assemblies to move and unlock. The second swing pin on the unlocking linkage extends out of the cover. When the button assembly slides relative to the cover, it touches the second swing pin, which drives the unlocking linkage to rotate and achieve the unlocking action.

[0019] By placing the button assembly on the front cover, internal unlocking can be achieved from the outside of the roller shutter cover, thus eliminating the need to open the rear trunk door and making the unlocking process more convenient.

[0020] Meanwhile, the upper cover and sliding cavity limit the sliding range of the button assembly to prevent the button assembly from falling off, and the return spring pushes the button assembly to reset so that the first and second locking tongue assemblies can be reset to the locked state. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the lock structure in an embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the lock structure without the rope portion in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the connection between the pulling member and the rope in an embodiment of this utility model;

[0025] Figure 5 for Figure 3 A schematic diagram of the cross-sectional structure;

[0026] Figure 6 for Figure 3 A schematic diagram of the structure with the top cover removed;

[0027] Figure 7 This is a schematic diagram of the button assembly in this utility model;

[0028] Figure 8 This is a schematic diagram of the installation structure of the unlocking linkage, the first fork, and the second fork in this utility model;

[0029] exist Figures 1 to 8 In the diagram, the correspondence between component names or lines and the drawing numbers is as follows:

[0030] 1. Face cover; 2. Top cover; 3. Sliding cavity; 4. Button assembly; 41. Button housing; 42. Sliding piece; 420. Bow position structure; 421. Sliding strip hole; 43. Lock cylinder; 44. Keyhole cover; 45. Torsion spring; 46. First washer; 47. Second washer; 48. First spring; 49. Fastener; 5. Return spring; 6. Base plate; 7. First fork; 70. Arc-shaped concave part; 8. Second fork; 80. Arc-shaped convex part; 9. First lock tongue assembly; 91. First wire rope; 92. First lock tongue clip; 93. Second lock tongue assembly; 10. Second wire rope; 101. Second lock tongue clip; 102. Third spring; 103. Unlocking linkage; 11. First swing column; 111. Second swing column; 112. Connecting part; 113. Locking contact; 114. Slot; 115. Pulling part; 12. Protrusion; 13. Rope; 14. Receiving groove; 15. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] See Figures 1-8 As shown in the embodiment of this utility model, a locking structure for a roller shutter cover is proposed, which is integrated into the roller shutter cover to achieve locking of the roller shutter cover. Specifically, it includes a front cover 1 and an upper cover 2 installed on the front cover 1. The upper cover 2 and the front cover 1 enclose a sliding cavity 3. A button assembly 4 that partially extends into the sliding cavity 3 is slidably installed on the front cover 1. A return spring 5 that pushes the button assembly 4 to reset is integrated on the front cover 1. The button assembly 4 is slidably installed on the front cover 1. The upper cover 2 limits the sliding range of the button assembly 4. Therefore, the button assembly 4 can slide into the sliding cavity 3, but cannot fall out of the sliding cavity 3. After the button assembly 4 is pressed, it compresses the return spring 5 to generate an elastic force. After the external force disappears, it pushes the button assembly 4 to reset.

[0033] The button assembly 4 has a strip-shaped structure, which makes it easy to press the button assembly 4 while holding the top cover 2 with one hand, thus forming an action in the holding state, making operation more convenient. The button assembly 4 only serves as the part that applies the action externally; the actual unlocking action is implemented internally.

[0034] A base plate 6 is installed at the bottom of the cover 1. A first fork 7 and a second fork 8 are rotatably mounted on the base plate 6. A first locking tongue assembly 9 is connected to the first fork 7, and a second locking tongue assembly 10 is connected to the second fork 8. The first locking tongue assembly 9 and the second locking tongue assembly 10 cooperate with the side rod to achieve a locking engagement. When the first fork 7 and the second fork 8 are driven to rotate in opposite directions, the first locking tongue assembly and the second locking tongue assembly 10 can be pulled to move and unlock.

[0035] Therefore, the sliding action of the button assembly 4 needs to be converted into the opposite rotation action of the first fork member 7 and the second fork member 8. Specifically, an unlocking linkage 11 is rotatably installed on the base plate 6. The unlocking linkage 11 is provided with a first swing column 111 extending between the first fork member 7 and the second fork member 8, and a second swing column 112 extending out of the face cover 1. The button assembly 4 is used to push the second swing column 112. When the button assembly 4 is pushed, it touches the second swing column 112, thereby causing the entire unlocking linkage 11 to rotate, causing the first swing column 111 to move between the first fork member 7 and the second fork member 8, thus forcing the first fork member 7 and the second fork member 8 to rotate in opposite directions, thereby realizing the unlocking action of the first latch assembly 9 and the second latch assembly 10. After the external thrust of the button assembly 4 is released, the first fork member 7 and the second fork member 8 are reset and rotated under the reset force of the first latch assembly 9 and the second latch assembly 10, thereby forcing the unlocking linkage 11 to reset.

[0036] To prevent the button assembly 4 from being unlocked without a key, it is necessary to lock the button assembly 4 in the pushed state. Therefore, the button assembly 4 includes a button housing 41 slidably mounted on the cover 1. A sliding piece 42 is slidably mounted inside the button housing 41. A lock cylinder 43 for pulling the sliding piece 42 to slide is mounted on the button housing 41. The sliding piece 42 is provided with an arch structure 420 for protruding towards the second swing post 112. When the lock cylinder 43 is in the unlocked state, the arch structure 420 is aligned with the second swing post 112. Specifically, only when the arch structure 420 is aligned with the second swing post 112 can the button assembly 4 be pushed towards the second swing post 112 to contact the second swing post 112 and achieve push unlocking. In the unaligned state, even at the maximum sliding stroke position of the button assembly 4, the sliding piece 42 cannot contact the second swing post 112.

[0037] Therefore, when unlocking is required, a matching key needs to be inserted into the lock cylinder 43 and rotated, so that the lock cylinder 43 pulls the sliding plate 42 to slide laterally. The bow position structure 420 is adjusted to align with the second swing column 112, and then the button assembly 4 is pressed and slid to achieve the unlocking operation, thus improving the anti-theft performance of the roller shutter cover.

[0038] To avoid the risk of the keyhole on the lock cylinder 43 being blocked, protection is required. Therefore, a keyhole cover 44 for covering the keyhole of the lock cylinder 43 is rotatably mounted on the button housing 41. The button housing 41 is provided with a torsion spring 45 for driving the keyhole cover 44 to rotate back to its original position. By turning the keyhole cover 44, the keyhole is exposed. The force of the torsion spring 45 can automatically reset the keyhole cover 44 after the external force is released, so as to avoid the possibility that the user forgets to close the keyhole cover 44.

[0039] To ensure the sliding piece 42 slides flexibly and has a certain buffering effect, two sliding strip holes 421 are opened at intervals on the sliding piece 42. The fastener 49 passes through the sliding strip holes 421 and is locked onto the button housing 41. A first washer 46 and a second washer 47 are sleeved on the fastener 49. A first spring 48 is sleeved on the fastener 49 between the first washer 46 and the second washer 47. The first spring 48 provides a buffering effect when the sliding piece 42 contacts the second swing column 112, reducing noise. At the same time, the sliding strip holes 421 at two positions ensure the stable sliding of the sliding piece 42 and ensure that there is no large angular deviation during the sliding process.

[0040] In addition to using the resetting action of the first latch assembly 9 and the second latch assembly 10 to reset and rotate the first fork 7 and the second fork 8, the unlocking linkage can also be pushed to reset and rotate. However, this generally needs to be done in the open state. Specifically, the unlocking linkage 11 is provided with a connecting part 113 located on one side of the second swing column 112. The connecting part 113 is provided with a locking contact 114. By pushing the locking contact 114, the unlocking linkage is rotated, thereby allowing the first swing column 111 to disengage from the first fork 7 and the second fork 8. This is equivalent to leaving a back door for the risk of lock structure jamming, facilitating the reset operation.

[0041] Meanwhile, a third unlocking method is provided, which allows for internal operation when the lock structure is far away. Specifically, a pull member 12 is rotatably installed at the bottom of the base plate 6. The pull member 12 is provided with a protrusion 13 that extends into the unlocking linkage 11. The unlocking linkage 11 is provided with a slot 115 for the protrusion 13 to be inserted. A rope 14 is connected to the pull member 12. By pulling the rope 14, the pull member 12 rotates relative to the lock, and the protrusion 13 extends into the slot 115, causing the unlocking linkage 11 to rotate, thereby realizing the unlocking operation.

[0042] If the external button assembly 4 becomes stuck, it can also be unlocked by opening the tailgate and pulling the rope 14, thus forming a dual unlocking function and providing double protection.

[0043] The first latch assembly 9 and the second latch assembly 10 are used to cooperate with the locked position on the side rod, thereby enabling adjustment of the locked and unlocked states. Generally, after unlocking, there is a tendency to move towards the locked position. Specifically, the first latch assembly 9 includes a first steel wire rope 91 connected to the first fork member 7. The end of the first steel wire rope 91 is connected to a first latch clip 92. A second spring 93 is sleeved on the first steel wire rope 91 to push the first latch clip 92 to move outward and reset. The second spring 93 abuts against the inside of the roller shutter cover. The first fork member 7 pulls the first steel wire rope 91 to move, causing the first latch clip 92 to compress the second spring 93. The reset force of the second spring 93 can push the first latch clip 92 to reset and pull the first fork member 7 to reset.

[0044] Similarly, the second locking tongue assembly 10 includes a second steel wire rope 101 connected to the second fork member 8. The end of the second steel wire rope 101 is connected to a second locking tongue clip 102. A third spring 103 is sleeved on the second steel wire rope 101 for pushing the second locking tongue clip 102 to move outward and reset. When unlocking, the second steel wire rope 101 is pulled by the second fork member 8 to move, causing the second locking tongue clip 102 to exit the locked position. The third spring 103 is compressed to form a reset elastic force. After the traction force is released, it can push the second locking tongue clip 102 to reset and move, and at the same time, it can also pull the second fork member 8 to reset.

[0045] Therefore, after the button assembly 4 is released, the first fork member 7 and the second fork member 8 can be reset and rotated under the action of the second spring 93 and the third spring 103.

[0046] To ensure a small gap between the first fork component 7 and the second fork component 8, allowing for unlocking by rotating the opening angle and locking by closing the closing angle, an arc-shaped recess 70 and an arc-shaped protrusion 80 are provided on the first fork component 7 to mate with the arc-shaped recess 70. The mating of the arc-shaped recess 70 and the arc-shaped protrusion 80 achieves a small gap while increasing the opening angle after reverse rotation. The specific structure of the first fork component 7 and the second fork component 8 is not limited, as long as structural strength is met.

[0047] Simultaneously, when the first fork member 7 and the second fork member 8 are in the closed state, they form a receiving groove 15. The first swing column 111 is located in the receiving groove 15. The receiving groove 15 is used to place the first swing column 111 in the reset state, thereby preventing the first swing column 111 from falling out of the first fork member 7 and the second fork member 8. This ensures that the first swing column 111 can quickly extend between the first fork member 7 and the second fork member 8 each time the unlocking linkage 11 rotates.

[0048] It should be noted that the specific structure and material of the technical features mentioned in this embodiment are not particularly limited. The purpose is to achieve the unlocking and locking actions of the lock structure after having the above-mentioned matching features. Any structure can be used to achieve this.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A locking structure for a roller shutter cover, characterized in that: The device includes a front cover and an upper cover mounted on the front cover. The upper cover and the front cover together form a sliding cavity. A button assembly that partially extends into the sliding cavity is slidably mounted on the front cover. A reset spring that pushes the button assembly to reset is integrated on the front cover. A base plate is installed at the bottom of the cover, and a first fork and a second fork are rotatably installed on the base plate. A first locking tongue assembly is connected to the first fork, and a second locking tongue assembly is connected to the second fork. An unlocking linkage is rotatably mounted on the base plate. The unlocking linkage is provided with a first swing column extending between the first fork and the second fork. The unlocking linkage is provided with a second swing column extending out of the faceplate. The button assembly is used to push the second swing column.

2. The locking structure of a roller shutter cover according to claim 1, characterized in that: The button assembly includes a button housing slidably mounted on the faceplate, a sliding piece slidably mounted inside the button housing, a lock cylinder for pulling the sliding piece to slide on the button housing, and an arch structure for protruding toward the second swing post on the sliding piece. When the lock cylinder is in the unlocked state, the arch structure is aligned with the second swing post.

3. The locking structure of a roller shutter cover according to claim 2, characterized in that: A keyhole cover for covering the lock cylinder is rotatably mounted on the button housing, and a torsion spring for driving the keyhole cover to rotate and reset is provided inside the button housing.

4. The locking structure of a roller shutter cover according to claim 3, characterized in that: The sliding piece has two sliding strip holes spaced apart. The fastener passes through the sliding strip holes and is locked onto the button housing. A first washer and a second washer are fitted on the fastener. A first spring is fitted on the fastener between the first washer and the second washer.

5. A locking structure for a roller shutter cover according to any one of claims 1-4, characterized in that: The unlocking linkage is provided with a connecting part located on one side of the second swing column, and the connecting part is provided with a locking contact.

6. The locking structure of a roller shutter cover according to claim 5, characterized in that: A pulling member is rotatably mounted on the bottom of the base plate. The pulling member is provided with a protrusion that extends into the unlocking linkage. The unlocking linkage is provided with a slot for inserting the protrusion. A rope is connected to the pulling component.

7. The locking structure of a roller shutter cover according to claim 5, characterized in that: The first locking tongue assembly includes a first steel wire rope connected to the first fork member, the end of the first steel wire rope being connected to a first locking tongue clip, and a second spring sleeved on the first steel wire rope for pushing the first locking tongue clip to move outward to reset.

8. The locking structure of a roller shutter cover according to claim 5, characterized in that: The second locking tongue assembly includes a second steel wire rope connected to the second fork, the end of the second steel wire rope being connected to a second locking tongue clip, and a third spring being sleeved on the second steel wire rope for pushing the second locking tongue clip to move outward to reset.

9. The locking structure of a roller shutter cover according to claim 8, characterized in that: The first fork has an arc-shaped recess and an arc-shaped protrusion that mates with the arc-shaped recess.

10. The locking structure of a roller shutter cover according to claim 9, characterized in that: When the first fork and the second fork are in the closed state, they enclose and form a receiving groove, and the first swing column is located in the receiving groove.

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