A curved lock

Abstract

The present invention provides an arc lock, comprising: a base, which is fixedly arranged on a lock seat and provided with an arc groove; a movable member, which has an arc-shaped insertion portion adapted to the arc groove, and the insertion portion is movably connected to the arc groove; and a driving assembly, which is arranged on the base and drives the insertion portion to move in the arc groove. The present invention drives the insertion portion to move in the arc groove through the driving assembly to achieve the arc adjustment of the movable member, thereby achieving the arc adjustment between the movable member and the lock body.

Description

Technical Field

[0001] The invention relates to the field of lock buckles, and in particular to an arc-shaped lock. Background Art

[0002] Existing LED display screens are generally connected to each other through connection locks, which can improve the reliability and stability of the connection between the screens. However, after the connection, the screens are relatively fixed and the curvature adjustment between the screens cannot be achieved. Summary of the invention

[0003] The present invention aims to provide an arc lock capable of adjusting the arc.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] The present invention provides an arc lock, comprising:

[0006] A base, which is fixedly arranged on the lock seat and has an arc groove;

[0007] A movable member having an arc-shaped inserting portion adapted to the arc-shaped groove, the inserting portion being movably connected to the arc-shaped groove;

[0008] The driving assembly is arranged on the base and drives the inserting part to move in the arc groove.

[0009] The beneficial effects of the present invention are:

[0010] The present invention provides an arc-shaped lock, wherein an arc-shaped groove is arranged on a base, and the base is fixedly arranged on a lock seat; a movable member has an arc-shaped insertion portion adapted to the arc-shaped groove, and the insertion portion is movably connected to the arc-shaped groove; a driving assembly is arranged on the base, and drives the insertion portion to move in the arc-shaped groove. The present invention drives the insertion portion to move in the arc-shaped groove through the driving assembly to achieve the curvature adjustment of the movable member, thereby achieving the curvature adjustment between the movable member and the lock body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic structural diagram of an arc lock according to an embodiment of the present invention;

[0012] Figure 2 A schematic diagram of a three-dimensional structure of a curved lock connected to a lock seat according to an embodiment of the present invention;

[0013] Figure 3 for Figure 2 The schematic diagram of the structure after the lock seat and locking assembly are disassembled;

[0014] Figure 4 This is a schematic diagram of the structure of the connection between the guide rod and the positioning hole according to an embodiment of the present invention;

[0015] Figure 5This is a structural schematic diagram of the connection between the glass bead assembly and the recess according to an embodiment of the present invention;

[0016] Description of labels:

[0017] 1. Base; 2. Movable parts; 3. Driving assembly; 4. Arc groove; 5. Insertion part; 6. Locking part; 7. Slot; 8. Gear; 9. Rack; 10. Guide rod; 11. Positioning hole; 12. Support; 13. Locking assembly; 14. Rotating shaft; 15. Knob; 16. Positioning block; 17. Turntable; 18. Anti-slip strip; 19. Glass bead assembly; 20. Notch; 21. Lock seat; 22. Avoidance hole. DETAILED DESCRIPTION

[0018] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0019] The most critical concept of the present invention is that: an arc groove is provided on the base; the movable member has an arc-shaped insertion part adapted to the arc groove, and the insertion part is movably connected to the arc groove; a driving component is arranged on the base to drive the insertion part to move in the arc groove.

[0020] Please refer to Figures 1 to 5 The present invention provides an arc lock, comprising: a base, which is fixedly arranged on a lock seat and provided with an arc groove; a movable part, which has an arc-shaped insertion part adapted to the arc groove, and the insertion part is movably connected to the arc groove; and a driving assembly, which is arranged on the base and drives the insertion part to move in the arc groove.

[0021] From the above description, it can be seen that the present invention provides an arc lock, wherein an arc groove is arranged on a base, and the base is fixedly arranged on a lock seat; the movable member has an arc-shaped insertion portion adapted to the arc groove, and the insertion portion is movably connected to the arc groove; and a driving assembly is arranged on the base to drive the insertion portion to move in the arc groove. The present invention drives the insertion portion to move in the arc groove through the driving assembly to achieve the curvature adjustment of the movable member, thereby achieving the curvature adjustment between the movable member and the lock body.

[0022] Furthermore, the movable part includes a locking portion, which is located at the other end of the arc-shaped insertion portion, and is provided with a slot connected to the lock body hook.

[0023] It can be seen from the above description that, through the above structure, the curvature adjustment between adjacent screen bodies can be achieved by locking the locking portion of the movable member with the lock body hook.

[0024] Furthermore, the insertion portion is a bent rod with a V-shaped cross section.

[0025] From the above description, it can be seen that by moving the V-shaped bending rod on the arc groove, the actual installation situation is met and processing is convenient. One side of the raised position of the V-shaped bending rod is convenient for locking the curvature adjustment, and the other side is convenient for providing a hook for the lock body to pass through when the lock body is locked. The lock hook on that side can be locked with the lock body, making the curvature adjustment between the movable part and the lock body easier to achieve.

[0026] Furthermore, the arc-shaped groove is arranged in an upward convex arc or a downward concave arc relative to the installation plane of the base.

[0027] From the above description, it can be seen that the arc groove is convex upward or concave downward as two different installation states of the movable part, which can facilitate the installation of the movable part according to actual conditions. The insertion part of the above structure can facilitate the adjustment of the curvature between the movable part and the lock.

[0028] Furthermore, the driving assembly includes a gear and a rack arranged on the base and meshing with the gear. The gear rotates to move the rack on the base. The rack is provided with a guide rod, which is connected to the movable part.

[0029] Furthermore, the gear is rotatably arranged on the base via a rotating shaft.

[0030] Furthermore, a positioning hole is provided on the movable part, and the guide rod is inserted into the positioning hole to connect with the movable part. Since the guide rod is arc-shaped, it also moves in an arc shape when it moves, so that the gear also moves in an arc shape. If the installation position of the rack is fixed, it cannot ensure that the rack and the gear are always meshed. The guide rod is movably set in the positioning hole, so that the rack can be limited by the support and the whole is movably set, so that when the gear moves, the rack also moves with the gear, so as to ensure that the rack can always be accurately meshed with the gear.

[0031] From the above description, it can be seen that the movable connection between the guide rod and the movable part can be achieved through the positioning hole on the movable part; the rack is driven to move by the rotation of the gear, thereby moving the guide rod on the rack, and the moving direction of the guide rod is consistent with the moving direction of the rack. Through the positioning effect of the positioning hole, the movable part can be moved along the arc groove.

[0032] Furthermore, the base is provided with an avoidance hole for the guide rod to pass through, the extension direction of the avoidance hole is consistent with the moving direction of the guide rod, and the elongated avoidance hole arranged along the guide rod provides a moving space when the guide rod drives the movable part to move.

[0033] Furthermore, the inner diameter of the positioning hole gradually increases from the bottom of the hole to the hole mouth, so as to reduce the contact area between the guide rod and the positioning hole.

[0034] Furthermore, the outer diameter of the joint between the guide rod and the positioning hole gradually increases from the end surface of the guide rod to the part away from the end surface, so as to reduce the contact area between the guide rod and the positioning hole.

[0035] The positioning hole and the guide rod are in arc contact when in contact, so as to avoid the problem of jamming caused by large friction between the two.

[0036] Furthermore, the size of the positioning hole along the moving direction of the guide rod is matched with the size of the guide rod, and the size of the positioning hole in the non-moving direction of the guide rod is larger than the size of the positioning hole along the moving direction of the guide rod. The surface in contact with the positioning hole in the moving direction of the guide rod is a necessary contact surface, and the insertion portion of the movable part can be effectively driven by the guide rod to move along the arc-shaped guide groove to adjust the angle. In a direction different from the moving direction of the guide rod, the size of the positioning hole is larger than the size of the guide rod in this direction, so that the positioning hole only needs to meet the size in the moving direction of the guide rod in processing, and the size in the non-moving direction can reduce the processing requirements, thereby reducing the manufacturing difficulty and saving production costs. In addition, since the size of the guide rod in the non-moving direction is larger than its size in the moving direction, when the guide rod drives the rack to move, it can provide space for the rack to move, avoiding the problem of jamming caused by the small size of the positioning hole and the tight meshing of the rack and the gear.

[0037] Furthermore, the size of the first guide groove is larger than the size of the other end of the T-shaped support.

[0038] Furthermore, the driving assembly also includes a support, and the rack is limited by the support so that it can be movably installed on the base.

[0039] Furthermore, a guide groove for limiting the moving direction of the rack is provided on the base, and the extending direction of the guide groove is consistent with the moving direction of the rack.

[0040] From the above description, it can be known that the guide rod is movably arranged in the positioning hole, and the size of the positioning hole is larger than the outer diameter of the guide rod, so that the interference between the guide rod and the unnecessary contact surface when pushing the movable part to move can be reduced, and the rack and the guide rod can be prevented from being stuck on the movable part. The outer surface of the end of the guide rod is an arc surface that gradually decreases toward its end surface, and the positioning hole is an arc surface that expands from the bottom of the hole to the outside of the hole, so that the moving trajectory of the rack can be moved along the plane of the guide groove on the base to maintain the meshing with the gear, rather than generating an arc trajectory with the movement of the arc surface of the insertion part of the movable block. In fact, when the rack pushes the movable part to move, the guide rod is also in a state of adjusting the angle at any time, which can not only meet the flexible, fast and convenient assembly between the guide rod and the base, but also meet the requirements that the rack always maintains synchronous meshing with the gear when moving, and the direction when moving is also in one direction, and will not deviate when meshing with the gear.

[0041] Furthermore, the support includes a blocking portion and a positioning portion, the blocking portion is installed on the base through the positioning portion, and the blocking portion is arranged at the rack to limit the rack in the guide groove of the base.

[0042] From the above description, it can be seen that a blocking part is provided at the position corresponding to the rack on the base, the blocking part is fixedly installed with the base through the positioning part, and the blocking part abuts against the outer wall of the rack to prevent the rack from falling out of the guide groove. Preferably, there is a gap between the blocking part and the rack to facilitate the movement of the rack. At the same time, the support and the base are non-integrated structures, which is convenient for installation and processing.

[0043] Furthermore, the arc lock also includes a locking assembly, which includes a rotating shaft, a knob is provided at one end of the rotating shaft located outside the base, and the end of the rotating shaft close to the movable body is connected to a positioning block. The knob is rotated to drive the positioning block to approach or move away from the insertion part; a accommodating cavity for placing the positioning block is provided on the base.

[0044] From the above description, it can be seen that when the knob is rotated forward, the positioning block presses against the insertion part, so that the insertion part is fixed in the arc groove, and the curvature of the movable part cannot be adjusted at this time; when the knob is rotated reversely and the positioning block is away from the insertion part, the insertion part and the arc groove are movably connected, and the curvature can be adjusted.

[0045] Furthermore, a circular turntable is fixedly provided on the gear, and an anti-slip strip is provided on the outer edge end surface of the turntable.

[0046] From the above description, it can be seen that rotating the turntable can drive the gear to rotate, driving the rack meshing with the gear to move in the guide groove, so that the guide drives the insertion part to move in the arc groove; by setting an anti-slip strip on the outer edge end face of the turntable, slipping can be prevented when the turntable is rotated.

[0047] Furthermore, the outer diameter of the rotating disk is larger than the outer diameter of the gear.

[0048] It can be seen from the above description that the above structure makes it convenient for the operator to operate and rotate the gear.

[0049] Furthermore, a positioning block is provided at one end of the driving component close to the movable part, and the driving component drives the positioning block to contact the insertion part to lock the movable part, or the driving component drives the positioning block to leave the insertion part to unlock the movable part.

[0050] From the above description, it can be seen that when the positioning block contacts the insertion part, the movable part is locked, and the curvature of the movable part cannot be adjusted at this time; when the positioning block leaves the insertion part, the movable part is unlocked, and the insertion part and the arc groove are movably connected, and the curvature can be adjusted.

[0051] Furthermore, the material hardness of the positioning block is smaller than the material hardness of the inserting portion.

[0052] From the above description, it can be seen that the hardness of the positioning block is relatively small. Therefore, when the positioning block presses against the insertion part, it will produce a certain deformation after being subjected to force, so that a certain elastic contact rather than a rigid contact is formed between the positioning block and the insertion part, which can protect the surface structure of the insertion part and enable the positioning block to be pressed tighter and more stable when locking the insertion part.

[0053] Furthermore, the arc lock also includes a glass bead assembly; a through hole connecting the top of the base and the arc groove is provided on the base, and the glass bead assembly is arranged in the through hole; a recess is provided on the insertion part at a position corresponding to the glass bead assembly.

[0054] Furthermore, the insertion part is provided with a plurality of notches at intervals along the moving direction of the notch. When the insertion part moves to different positions and produces different angles, a notch can be provided there, and the plurality of notches can mark the actual adjustment angle there, and resistance is generated through the glass bead assembly to prompt the operator to adjust to the correct position.

[0055] From the above description, it can be known that by rotating the knob in the opposite direction, the positioning block moves away from the insertion part. At this time, the positioning block is separated from the movable part. At this time, the movable part is in an active state. By rotating the turntable, the turntable will drive the gear to rotate, and the rack is meshed with the gear, so that the movement of the rack drives the movable part to move along the arc groove. Through the limit of the glass bead assembly, the degree can be limited and prompted. After selecting the appropriate degree, rotate the knob again to make the positioning block of the knob contact the movable part, so that the movable part is in a locked state.

[0056] Please refer to Figures 1 to 5 , Embodiment 1 of the present invention is:

[0057] The present invention provides an arc lock, comprising:

[0058] A base 1, which is fixedly mounted on a lock base 21 and has an arc-shaped groove 4;

[0059] The movable member 2 has an arc-shaped inserting portion 5 adapted to the arc-shaped groove 4, and the inserting portion 5 is movably connected to the arc-shaped groove 4;

[0060] The driving assembly 3 is disposed on the base 1 and drives the inserting portion 5 to move in the arc groove 4 .

[0061] Embodiment 2 of the present invention is:

[0062] The difference between the second embodiment of the present invention and the first embodiment is that the movable member 2 includes a locking portion 6, the locking portion 6 is located at the other end of the arc-shaped insertion portion 5, and the locking portion 6 is provided with a card slot 7 connected to the lock body hook; the insertion portion 5 is a bending rod with a V-shaped cross section; the arc-shaped slot 4 is arranged in an upward convex arc relative to the installation plane of the base 1;

[0063] The driving assembly 3 includes a gear 8 and a rack 9 arranged on the base 1 and meshing with the gear 8. The gear 8 rotates to move the rack 9 on the base 1. The rack 9 is provided with a guide rod 10, and the guide rod 10 is connected to the movable part 2; the movable part 2 is provided with a positioning hole 11, and the guide rod 10 is inserted into the positioning hole 11 to be connected to the movable part 2; the base is provided with an avoidance hole 22 for the guide rod to pass through, and the extension direction of the avoidance hole 22 is consistent with the moving direction of the guide rod. The elongated avoidance hole arranged along the guide rod provides a moving space when the guide rod drives the movable part to move.

[0064] The inner diameter of the positioning hole 11 gradually increases from the bottom of the hole to the hole mouth, and the outer diameter of the matching insertion point of the guide rod 10 and the positioning hole 11 gradually increases from the end face of the end of the guide rod 10 to the end away from the end face. The size of the end of the guide rod 10 close to the positioning hole 11 is smaller than the size of the positioning hole 11; the size of the positioning hole 11 along the moving direction of the guide rod 10 is adapted to the size of the guide rod 10, and the size of the positioning hole 11 on the non-moving direction of the guide rod 10 is larger than the size of the positioning hole 11 along the moving direction of the guide rod 10;

[0065] The driving assembly 3 also includes a support 12, and the rack 9 is limited by the support 12 so that it can be movably installed on the base 1; the base 1 is provided with a guide groove for limiting the moving direction of the rack 9, and the extending direction of the guide groove is consistent with the moving direction of the rack 9;

[0066] The support 12 includes a blocking portion and a positioning portion, the blocking portion is installed on the base 1 through the positioning portion, and the blocking portion is arranged at the rack 9 to limit the rack 9 in the guide groove of the base 1; a circular rotating disk 17 is fixed on the gear 8, and an anti-slip strip 18 is arranged on the outer edge end surface of the rotating disk 17, and the outer diameter of the rotating disk 17 is larger than the outer diameter of the gear 8;

[0067] A positioning block 16 is provided at one end of the driving assembly 3 close to the movable member 2 . The driving assembly 3 drives the positioning block 16 to contact the insertion portion 5 to lock the movable member 2 , or drives the positioning block 16 to leave the insertion portion 5 to unlock the movable member 2 .

[0068] Embodiment 3 of the present invention is

[0069] Embodiment 3 of the present invention is a further improvement on the arc lock based on embodiment 2, and is different from embodiment 2 in that the arc lock further includes a locking component 13 and a glass bead component 19;

[0070] The locking assembly 13 includes a rotating shaft 14, and a knob 15 is provided at one end of the rotating shaft 14 located outside the base 1;

[0071] The gear 8 hole of the gear 8 is rotatably connected to the rotating shaft 14 and is located in the first accommodating cavity at the top of the base 1; the rotating shaft 14 has an external thread, and the base 1 is provided with a first hole connecting the first accommodating cavity and the arc groove 4, the first hole has an internal thread, and the rotating shaft 14 is threadedly connected to the internal thread of the first hole through the external thread; a second accommodating cavity is provided at one end of the first hole close to the arc groove 4, and a positioning block 16 is provided on the second accommodating cavity, the positioning block 16 is connected to one end of the rotating shaft 14, and the bottom of the positioning block 16 is in contact with the arc rod; a knob 15 for rotating the rotating shaft 14 is provided at the other end of the rotating shaft 14; the knob 15 is rotated to drive the positioning block 16 to approach the insertion portion 5 or away from the insertion portion 5; the material hardness of the positioning block 16 is less than the material hardness of the insertion portion 5;

[0072] The turntable 17 has a first through hole; one end of the knob 15 is located outside the first through hole, and the other end passes through the through hole and is connected to the other end of the shaft 14; the turntable 17 and the knob 15 are both located outside the base 1;

[0073] The base 1 is provided with a through hole connecting the top of the base 1 and the arc groove 4 , and the glass bead assembly 19 is arranged in the through hole; the insertion part 5 is provided with a notch 20 at a position corresponding to the glass bead assembly 19 .

[0074] In summary, the present invention provides an arc lock, an arc groove is arranged on the base, and the base is fixedly arranged on the lock seat; the movable part has an arc-shaped insertion part adapted to the arc groove, and the insertion part is movably connected with the arc groove; the driving assembly is arranged on the base, driving the insertion part to move in the arc groove. The present invention drives the insertion part to move in the arc groove through a driving assembly to achieve the curvature adjustment of the movable part, thereby achieving the curvature adjustment between the movable part and the lock body; at the same time, the positioning hole on the movable part can realize the movable connection between the guide rod and the movable part; the gear rotation drives the rack to move, so that the guide rod on the rack moves, and the guide rod and the moving direction are consistent with the moving direction of the rack, and the movable part can be moved along the arc groove through the positioning effect of the positioning hole; the above-mentioned guide rod is movably arranged in the positioning hole, and the size of the positioning hole is larger than the outer diameter of the guide rod, so that the interference between the guide rod and the unnecessary contact surface when pushing the movable part can be reduced, and the jamming can be avoided. The outer surface of the end of the guide rod is a reduced arc surface, and the positioning hole is an arc surface that expands from the inside to the periphery, so that the rack can be moved along the plane of the guide groove on the base instead of the arc surface. The arc track. In fact, when the rack pushes the movable part to move, the guide rod is also in a state of adjusting the angle at any time, which can not only meet the flexible, fast and convenient assembly between the guide rod and the base, but also meet the rack always facing one direction when moving.

[0075] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An arc lock, characterized in that: include: A base, which is fixedly arranged on the lock seat and has an arc groove; A movable member having an arc-shaped inserting portion adapted to the arc-shaped groove, wherein the inserting portion is movably connected to the arc-shaped groove; A driving assembly is arranged on the base, driving the insertion part to move in the arc groove; the driving assembly comprises a gear and a rack arranged on the base and meshing with the gear, the gear rotates to move the rack on the base, the rack is provided with a guide rod, and the guide rod is connected to the movable part; a circular turntable is fixed on the gear; The locking assembly comprises a rotating shaft, wherein one end of the rotating shaft outside the base is provided with a knob, one end of the rotating shaft close to the movable member is connected to a positioning block, the rotating shaft has an external thread, a first hole is provided on the base, the first hole has an internal thread, the rotating shaft is threadedly connected with the internal thread of the first hole through the external thread, and the knob is rotated to drive the positioning block close to or away from the insertion part; the rotating disk has a first through hole; one end of the knob is located outside the first through hole, and the other end passes through the through hole and is connected to the other end of the rotating shaft; The movable part is provided with a positioning hole, and the inner diameter of the positioning hole gradually increases from the bottom of the hole to the hole mouth. The guide rod is inserted into the positioning hole to be connected with the movable part. The base is provided with an avoidance hole for the guide rod to pass through, and the extension direction of the avoidance hole is consistent with the moving direction of the guide rod. The outer diameter of the fitting point between the guide rod and the positioning hole gradually increases from the end face of the guide rod to the end away from the end face. The size of the positioning hole along the moving direction of the guide rod is adapted to the size of the guide rod, and the size of the positioning hole in the non-moving direction of the guide rod is larger than the size of the positioning hole along the moving direction of the guide rod. The outer surface of the end of the guide rod is an arc surface that gradually shrinks toward its end face, and the positioning hole is an enlarged arc surface from the bottom of the hole to the outside of the hole.

2. The arc lock according to claim 1, characterized in that: The movable part comprises a locking portion, the locking portion is located at the other end of the arc-shaped insertion portion, and the locking portion is provided with a clamping groove connected with the lock body clamping hook.

3. The arc lock according to claim 1, characterized in that: The inserting portion is a bending rod with a V-shaped cross section.

4. The arc lock according to claim 1, characterized in that: The arc-shaped groove is arranged in an upward convex arc or a downward concave arc relative to the installation plane of the base.

5. The arc lock according to claim 1, characterized in that: The driving assembly also includes a support, and the rack is limited by the support so that it can be movably installed on the base.

6. The arc lock according to claim 1, characterized in that: The base is provided with a guide groove for limiting the moving direction of the rack, and the extending direction of the guide groove is consistent with the moving direction of the rack.

7. The arc lock according to claim 5, characterized in that: The support comprises a blocking portion and a positioning portion, wherein the blocking portion is mounted on the base through the positioning portion, and the blocking portion is arranged at the rack to limit the rack in the guide groove of the base.

8. The arc lock according to claim 1, characterized in that: The outer edge surface of the rotating disk is provided with an anti-slip strip.

9. The arc lock according to claim 8, characterized in that: The outer diameter of the rotating disk is larger than the outer diameter of the gear.

10. The arc lock according to claim 1, characterized in that: The material hardness of the positioning block is smaller than the material hardness of the inserting portion.

11. The arc lock according to claim 1, characterized in that: It also includes a glass bead component; the base is provided with a through hole connecting the top of the base and the arc groove, and the glass bead component is arranged in the through hole; the insertion part is provided with a notch at a position corresponding to the glass bead component.

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