Invisible lock for cover body
By using a lock cylinder base, a multi-level nested lock cylinder structure, and a double spring design, the problems of insufficient concealment and limited durability of concealed locks are solved, resulting in a concealed lock with high concealment and durability, suitable for enclosure structures that require concealed installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-10
AI Technical Summary
Existing concealed locks lack sufficient concealment and have limited durability, while traditional key locks are prone to wear and tear, have high maintenance costs, and are relatively limited in design.
The design adopts a combination of lock cylinder base, first lock cylinder, second lock cylinder, third lock cylinder, first round wire compression spring, second round wire compression spring and pressing block, which simplifies the lock cylinder connection mechanism. Through multi-level lock cylinder nesting and double spring compound action, the concealment and durability of the lock cylinder are achieved.
It improves the concealment and durability of the lock, reduces assembly difficulty and the risk of failure, enhances the overall stability and impact resistance of the lock, and is easy to operate.
Smart Images
Figure CN224107062U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of lockset, relates to a invisible lock for cover body. BACKGROUND
[0002] As a key link in the invisible technology, the invisible lock plays an indispensable role in many devices with high requirements for concealment.
[0003] However, the current invisible lock for the devices with concealment requirements is relatively single. Many use traditional key locks, but such traditional key locks have obvious disadvantages. On the one hand, the concealment of the traditional key lock is poor, and it is difficult to effectively reduce the possibility of being detected or discovered. On the other hand, its durability needs to be improved. In the process of frequent use, the key components such as lock core and spring are prone to wear, thereby affecting the normal service life of the lock and increasing the maintenance cost and replacement frequency. Overall, the current lockset form is relatively fixed, and there are problems of insufficient concealment and limited durability. SUMMARY
[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a invisible lock for cover body, which solves the technical problems of insufficient concealment and limited durability.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] The utility model provides a invisible lock for cover body, including lock core seat, first lock core, second lock core, third lock core, first round wire compression spring, second round wire compression spring and compression block which are arranged in the inside of lock core seat,
[0007] The compression block is arranged between the outer wall of the first lock core and the tail end inner wall of the lock core seat, the head end of the first lock core and the whole third lock core are arranged in the inside of the second lock core, the tail end of the third lock core and the second round wire compression spring are arranged in the recess groove arranged in the inside of the first lock core, and the first round wire compression spring is sleeved on the outside of the second lock core and is between the compression block and the second lock core; under the action of the first round wire compression spring and the second round wire compression spring, the head end of the lock core seat, the second lock core and the third lock core are in the same plane.
[0008] In an embodiment, the second round wire compression spring is sleeved on the tail end of the third lock core.
[0009] In an embodiment, the tail end of the first lock core exceeds the lock core seat.
[0010] In an embodiment, the outer surface of the front end of the lock core seat has a rotation indication mark.
[0011] In an embodiment, a through hole is arranged on the front end of the lock cylinder seat, and the through hole is matched with the lock tongue of the handle.
[0012] In an embodiment, a fixing device is arranged on the lock cylinder seat and the first lock cylinder.
[0013] In an embodiment, the fixing device comprises a locking nut, a flat washer and a round nut.
[0014] The locking nut is arranged on the tail end of the lock cylinder seat, and the flat washer is arranged adjacent to the round nut on the tail end of the first lock cylinder.
[0015] In an embodiment, the flat washer is arranged adjacent to the round nut on one side, and a gap is arranged between the other side and the locking nut, and the gap is used for arranging a connecting rod.
[0016] In an embodiment, a plurality of fixing screws are arranged on the locking nut in a circumferential direction.
[0017] In an embodiment, a stop washer is arranged on the round nut, and the stop washer is arranged between the round nut and the flat washer.
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] The utility model provides a kind of invisible lock for cover body, which only uses lock cylinder seat, three lock cylinders, two springs and compression block etc. core components, by simplifying lock cylinder connecting mechanism, strengthening lock cylinder structure, increase the durability of lock, the simplified design also reduces assembly difficulty, while reducing the risk of failure caused by parts wear or coordination failure. The combination of spring (first round wire compression spring, second round wire compression spring) realizes lock cylinder reset, without relying on complex multi-stage locking system. The above-mentioned invisible lock directly drives lock cylinder by pressing handle, and can be unlocked by rotating. When not in use, the head end edges of lock cylinder seat, second lock cylinder and third lock cylinder are aligned, there is no protruding component on the appearance, radar wave is scattered, radar cross section is reduced, and the concealment is stronger. DRAWINGS
[0020] Figure 1 It is the whole structure schematic diagram of the invisible lock for cover body of the utility model;
[0021] Figure 2 It is the exploded schematic diagram of the invisible lock for cover body of the utility model;
[0022] Figure 3 It is the lock cylinder schematic diagram of the invisible lock for cover body of the utility model;
[0023] Figure 4 It is the lock cylinder sectional view of the invisible lock for cover body of the utility model;
[0024] Figure 5 The lock core front view of the invisible lock for the cover body of the utility model;
[0025] Figure 6 The schematic diagram of the invisible lock for the cover body of the utility model in the using state;
[0026] Figure 7 The sectional view of the invisible lock for the cover body of the utility model in the using state;
[0027] Figure 8 The sectional view of the invisible lock for the cover body of the utility model in the unused state;
[0028] Figure 9 The detail schematic diagram of the lock core of the invisible lock for the cover body of the utility model;
[0029] Figure 10 The schematic diagram of the handle of the invisible lock for the cover body of the utility model.
[0030] Wherein: 1-handle; 2-lock core seat; 3-first lock core; 4-second lock core; 5-third lock core; 6-first round wire compression spring; 7-second round wire compression spring; 8-pressing block; 9-locking nut; 10-flat washer; 11-tightening screw; 12-round nut; 13-stop washer; 14-trifoliate surface; 15-triangle lock tongue; 16-connecting rod. DETAILED DESCRIPTION
[0031] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiments will be described clearly and completely below in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the utility model.
[0032] It should be noted that the terms "first", "second", and the like in the description and in the claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0033] The utility model will be described in further detail below in conjunction with the drawings:
[0034] As Figure 1 And Figure 2 The utility model provides a kind of invisible lock for cover body, which includes lock cylinder seat 2, first lock cylinder 3, second lock cylinder 4, third lock cylinder 5, first round wire compression spring 6, second round wire compression spring 7 and compression block 8.Under the action of first round wire compression spring 6 and second round wire compression spring 7, the head end of lock cylinder seat 2, second lock cylinder 4 and third lock cylinder 5 is in the same plane, to ensure that lock can be invisible when closing.
[0035] Wherein, lock cylinder seat 2 is the basic support structure of entire invisible lock, provides the space of installation and positioning for other components, ensure that each component can be stably combined together, and with second lock cylinder 4 and first lock cylinder 3 cooperation realizes lock switch.
[0036] The outer wall of first lock cylinder 3 cooperates with compression block 8, the head end of first lock cylinder 3 is integrally placed in second lock cylinder 4, and a recess is formed in the interior of first lock cylinder 3 for accommodating the tail end of third lock cylinder 5 and second round wire compression spring 7, which is one of the key components for realizing the locking and opening function of lock.
[0037] Second lock cylinder 4 is sleeved on the head end of first lock cylinder 3 and the whole outside of third lock cylinder 5, cooperates with lock cylinder seat 2, first lock cylinder 3 and third lock cylinder 5, to complete the locking and opening action of lock together.
[0038] Third lock cylinder 5 is arranged in second lock cylinder 4 together with the head end of first lock cylinder 3, and the tail end and second round wire compression spring 7 are placed in the recess of first lock cylinder 3.
[0039] First round wire compression spring 6 is sleeved outside second lock cylinder 4, between compression block 8 and second lock cylinder 4, provides reset and buffer function for lock by the elastic force of itself.
[0040] Second round line compression spring 7 is arranged in the groove inside first lock cylinder 3, and is in contact with the tail end of third lock cylinder 5, and also uses elastic force to assist the lock to complete various actions.
[0041] Compression block 8 is arranged between the outer wall of first lock cylinder 3 and the tail end inner wall of lock cylinder seat 2, and plays a role of fixing and supporting first lock cylinder 3.
[0042] Referring to Figure 10 , the handle 1, i.e. the pattern triangular handle, used for the invisible lock on the cover body, comprises a handle and a lock opening part which is nearly perpendicular to the handle, the top end of the lock opening part being a triangular lock tongue 15, a clover face 14 being arranged between the triangular lock tongue 15 and the handle, the area of the clover face 14 being greater than that of the triangular lock tongue 15, and the clover face 14 being matched with the lock cylinder seat 2, the triangular lock tongue 15, the second lock cylinder 4, the second lock cylinder 4 and the third lock cylinder 5 and the first lock cylinder 3.
[0043] As shown in Figure 6 , the utility model provides an invisible lock for a cover body, the lock is opened and closed by a pattern triangular handle, as shown in the sectional view of Figure 8 , when the invisible lock is not used, the lock cylinder seat 2, the second lock cylinder 4 and the third lock cylinder 5 are in the same plane by the action of the first round line compression spring 6 and the second round line compression spring 7, when used, the triangular lock tongue 15 of the handle 1, i.e. the pattern triangular handle, presses the third lock cylinder 5, and when the clover face 14 of the pattern triangular handle is in contact with the front end surface of the second lock cylinder 4, the triangular lock tongue 15 of the pattern triangular handle is continuously pressed to the position of the invisible lock use sectional view as shown in Figure 7 , then the pattern triangular handle is rotated, the second lock cylinder 4 is rotated by the triangular lock tongue 15 of the pattern triangular handle, the second lock cylinder 4 drives the first lock cylinder 3 to rotate by triangular linkage (as shown in Figure 7 ), and the first lock cylinder 3 drives the connecting rod 16 to rotate, so that the invisible lock is opened and closed, after being opened and closed, the pattern triangular handle is pulled out, and the second lock cylinder 4 and the third lock cylinder 5 are reset by the first round line compression spring 6 and the second round line compression spring 7.
[0044] The invisible lock adopts polyhedral design and edge alignment technology, scatters radar waves, reduces the radar cross section area, and achieves the stealth effect; by simplifying the lock cylinder connecting mechanism, strengthening the lock cylinder structure and increasing the durability of the lock.
[0045] Embodiment 1
[0046] The embodiment provides an invisible lock for a cover body, and the structure is shown in Figure 2 , mainly comprising a lock cylinder seat 2, a first lock cylinder 3, a second lock cylinder 4, a third lock cylinder 5, a first round line compression spring 6, a second round line compression spring 7 and a compression block 8.
[0047] In the specific implementation structure, as shown in Figure 1 andFigure 5 As shown, the front end outer surface of the lock cylinder seat 2 is provided with a rotation indication mark, and an opening is provided at the end part which is matched with the lock tongue of the handle 1. Figure 9 As shown, the tail end of the first lock cylinder 3 is designed to be beyond the lock cylinder seat 2, and a compression block 8 is arranged between the outer wall of the tail end of the lock cylinder seat 2 and the inner wall of the tail end of the lock cylinder seat 2. The first lock cylinder 3 is accommodated in the head end of the second lock cylinder 4 and the third lock cylinder 5, wherein the tail end of the third lock cylinder 5 extends into the groove provided in the first lock cylinder 3, and the second round wire compression spring 7 is sleeved on the tail end of the third lock cylinder 5.
[0048] In the assembly relationship, the first round wire compression spring 6 is sleeved outside the second lock cylinder 4 and located between the compression block 8 and the second lock cylinder 4. Through the cooperative action of the first round wire compression spring 6 and the second round wire compression spring 7, the head end planes of the lock cylinder seat 2, the second lock cylinder 4 and the third lock cylinder 5 are kept flush. This structure design makes the lock body keep concealment in the non-use state, and can be positioned and opened through the rotation indication mark when operation is needed.
[0049] The invisible lock realizes high security while ensuring the convenience of operation through the nested structure of multiple lock cylinders and the combined action of double springs, and is suitable for the cover body structure which needs to be installed in a concealed manner.
[0050] Embodiment 2
[0051] This embodiment further optimizes the fixing structure of the invisible lock on the basis of Embodiment 1, and the technical scheme combines Figure 2 、 Figure 3 、 Figure 4 As shown, the specific implementation is as follows:
[0052] The lock cylinder seat 2 and the first lock cylinder 3 are additionally provided with a fixing device, which includes a locking nut 9, a flat washer 10 and a round nut 12.
[0053] Among them, the locking nut 9 is fixed on the tail end outer wall of the lock cylinder seat 2 through thread connection; the tail end of the first lock cylinder 3 is sequentially sleeved with the flat washer 10 and the round nut 12, one side of the flat washer 10 is tightly fitted with the round nut 12, and the other side is left with a certain gap with the locking nut 9, which is used for installing the connecting rod 16.
[0054] Further, a plurality of fixing screws 11 are uniformly arranged on the circumference of the locking nut 9, and the fixing effect between the locking nut 9 and the lock cylinder seat 2 can be enhanced by tightening the fixing screws 11, so as to prevent loosening caused by vibration. A stop washer 13 is further arranged between the round nut 12 and the flat washer 10, the teeth of the stop washer 13 are embedded in the groove of the round nut 12, and the mechanical engagement effect is used to avoid self-rotation and loosening of the round nut 12.
[0055] The embodiment improves the overall structural stability and impact resistance of the invisible lock through the composite fixing mode of the lock nut 9, the flat washer 10, the round nut 12 and the stop washer 13. Meanwhile, the stepped fixing design of the tail end of the lock cylinder seat 2 and the tail end of the first lock cylinder 3 can be adapted to the connecting rod 16, meet diversified installation requirements, and is especially suitable for scenes of high-reliability locking of industrial equipment covers.
[0056] The above is only used for describing the technical idea of the utility model, and cannot be used for limiting the protection scope of the utility model. Any modification made on the basis of the technical scheme according to the technical idea of the utility model falls within the protection scope of the utility model claim.
Claims
1. A concealed lock for a door, comprising: The lock cylinder seat (2), the first lock cylinder (3), the second lock cylinder (4), the third lock cylinder (5), the first round wire compression spring (6), the second round wire compression spring (7) and the compression block (8) are included. The compression block (8) is arranged between the outer wall of the first lock cylinder (3) and the tail end inner wall of the lock cylinder seat (2), the head end of the first lock cylinder (3) and the third lock cylinder (5) are arranged in the interior of the second lock cylinder (4), the tail end of the third lock cylinder (5) and the second round wire compression spring (7) are arranged in the groove in the interior of the first lock cylinder (3), the first round wire compression spring (6) is sleeved on the exterior of the second lock cylinder (4) and is between the compression block (8) and the second lock cylinder (4); under the action of the first round wire compression spring (6) and the second round wire compression spring (7), the lock cylinder seat (2), the second lock cylinder (4) and the head end of the third lock cylinder (5) are in the same plane.
2. The concealed lock for use on a cover as defined in claim 1, wherein The second round wire compression spring (7) is sleeved on the tail end of the third lock cylinder (5).
3. The concealed lock for use on a cover as defined in claim 1, wherein The tail end of the first lock cylinder (3) exceeds the lock cylinder seat (2).
4. The concealed lock for use on a cover as defined in claim 1, wherein The outer surface of the front end of the lock cylinder seat (2) has a rotation indication mark.
5. The concealed lock for use on a cover as defined in claim 1, wherein, The front end of the lock cylinder seat (2) is provided with an opening, and the opening is matched with the lock tongue of the handle (1).
6. The concealed lock for use on a cover as defined in claim 1, wherein The lock cylinder seat (2) and the first lock cylinder (3) are provided with a fixing device.
7. The concealed lock for use on a cover as defined in claim 6, wherein The fixing device includes a locking nut (9), a flat washer (10) and a round nut (12). The locking nut (9) is arranged on the tail end of the lock cylinder seat (2), and the flat washer (10) and the round nut (12) are arranged on the tail end of the first lock cylinder (3).
8. The concealed lock for use on a cover as defined in claim 7, wherein One side of the flat washer (10) is adjacent to the round nut (12), and the other side has a gap with the locking nut (9), and the gap is used for arranging a connecting rod (16).
9. The concealed lock for use on a cover as defined in claim 7, wherein, A plurality of locking screws (11) are arranged on the locking nut (9) in a circle.
10. The concealed lock for use on a cover as defined in claim 7, wherein, A stop washer (13) is arranged on the round nut (12), and the stop washer (13) is between the round nut (12) and the flat washer (10).