A child safety long lock

Abstract

The present invention relates to the technical field of child safety long locks, and in particular to a child safety long lock comprising: a fixing device; a connecting strip, the end of which is engaged with the fixing device and the connecting strip is provided with a plurality of engaging positions; a connecting device, the end of which is provided with a lock hole for inserting the connecting strip and engaging the connecting device; wherein the connecting device comprises: a connecting seat, the lock hole being provided with the lock hole; and a lock core mechanism, which is installed in the connecting seat and is used to engage the connecting strip in conjunction with the engaging positions. The present invention utilizes the magnetism of a lock element to control the position of a lock block, thereby achieving the engagement of the lock block with the connecting strip, thereby resolving the problem of poor locking effect due to accidental unlocking caused by children's arbitrary fiddling and pressing.

Description

Technical Field

[0001] The present invention relates to the technical field of child safety long locks, in particular to a child safety long lock. Background Art

[0002] Most furniture and electrical appliances are generally equipped with sliding doors or drawers. When children are at home, they are active and tend to open the doors or drawers by themselves, causing some unnecessary accidental injuries. In order to facilitate opening, the doors and drawers of existing furniture are generally not locked. Even if they need to be locked later, the installation is a relatively cumbersome process, and it is easy to affect the overall aesthetics of the furniture.

[0003] In order to solve the above-mentioned problems, there are now Chinese patents such as 2018214956989 on the market, which discloses a new type of push-type safety long lock, including a fixing device, a connecting strip and a positioning device. One end of the connecting strip is connected to the fixing device, and the other end of the connecting strip passes through the positioning device; the fixing device includes a fixed base, on which a fixed lock assembly is installed, and the fixed lock assembly includes a lock body and an unlocking button. A lock hole is provided on the fixed base, and a lock pin that cooperates with the lock hole is provided at the inner end of the unlocking button, and the outer end of the unlocking button extends out of the fixed base; a limiting device is also provided on the fixed lock assembly. The fixed base of this invention is installed with a fixed lock assembly, including a lock body and an unlocking button. By pressing the unlocking button, it is separated from or tightly attached to the fixed base to complete unlocking or locking.

[0004] However, the above-mentioned mechanical long lock may be unlocked by accidental touch due to children's random fiddling and pressing during actual use, resulting in poor locking effect. Summary of the Invention

[0005] The purpose of the present invention is to provide a child safety long lock, which controls the position of the lock block one by the magnetism of the lock piece one, so as to realize the connection of the lock block one to the connecting strip, thereby solving the problem of poor locking effect due to accidental unlocking caused by children's random fiddling and pressing.

[0006] The object of the present invention is achieved like this:

[0007] A child safety lock comprising:

[0008] Fixtures;

[0009] The end of the connecting strip is clamped in the fixing device, and the connecting strip is provided with a plurality of clamping positions;

[0010] A connecting device having a locking hole for the connecting strip to be inserted into and locked into the connecting device;

[0011] Wherein, the connecting device includes:

[0012] A connecting seat, on which the locking hole is provided;

[0013] The first lock core mechanism is installed in the connecting seat and is used to cooperate with the locking position to lock the connecting strip;

[0014] The lock core mechanism at least comprises:

[0015] Lock block 1 is installed in the connecting seat, and its front end is movable and extends into the lock hole;

[0016] A lock member 1 is installed in the connecting seat and is provided on the end surface of the lock block 1;

[0017] The locking piece 1 is a magnetic piece, which is used to attract or push the locking block 1 so that the front end of the locking block 1 tends to extend into the lock hole and is used to engage the engaging position of the connecting strip.

[0018] Preferably, a magnetic block 1 is provided inside the locking block 1, and the locking element 1 is installed on the bottom surface of the connecting seat;

[0019] The magnetic block 1 cooperates with the lock piece 1 magnetically so that the front end of the lock block 1 extends into the locking position and is locked.

[0020] Preferably, the locking member 1 is an elastic member, the ends of which respectively abut against the locking block 1 and the connecting seat, and are used to push the front end of the locking block 1 into the locking hole.

[0021] Preferably, the upper end surface of the connecting seat is recessed downward to form a first mounting groove, and a through hole is formed at the bottom of the first mounting groove;

[0022] An end cover 1 is installed on the upper end surface of the connecting seat, and the end cover 1 cooperates with the installation groove 1 to form a clamping cavity 1 for accommodating the locking block 1, and the front end of the locking block 1 can extend into the locking hole from the through hole.

[0023] Preferably, the front end of the locking block 1 is formed with a guide surface 1 at the entrance end facing the lock hole, for guiding the end of the connecting strip to slide over the front end surface of the locking block 1;

[0024] The side wall of the installation groove 1 is formed with a limiting part 1, and the rear end of the locking block 1 is formed with a limiting part 2, and the rotation of the locking block 1 in the installation groove 1 is restricted by the cooperation between the limiting part 1 and the limiting part 2.

[0025] Preferably, the fixing device has at least:

[0026] A fixing seat having an opening for inserting the end of the connecting strip;

[0027] A fixing mechanism, which is installed in the fixing seat and is used to clamp the end of the inserted connecting strip;

[0028] Wherein, the fixing mechanism at least has:

[0029] The second locking block is installed in the fixed seat, and the front end thereof is movable and extends into the opening;

[0030] The second locking piece is installed in the fixing seat and is arranged on the end surface of the second locking block so that the front end of the second locking block has a tendency to extend into the opening and is used to clamp the end of the connecting strip.

[0031] Preferably, the second locking member is a magnetic member, which is used to attract the second locking block so that the front end of the second locking block is engaged with the end of the connecting strip.

[0032] Preferably, a second magnetic block is provided in the second locking block, and the second locking member is mounted on the bottom surface of the fixing seat;

[0033] The magnetic cooperation between the second magnetic block and the second lock member enables the front end of the first lock block to extend into the locking position and be locked.

[0034] Preferably, it also includes:

[0035] an unlocking member, in which a third magnetic block is installed;

[0036] When the end of the unlocking piece abuts against the upper end of the connecting seat, the magnetic attraction force of the third magnetic block on the first locking piece is greater than the magnetic attraction force of the first locking piece on the first locking piece.

[0037] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0038] 1. The present invention designs the magnetism of the lock piece 1 to control the position of the lock block 1 to realize the locking connection of the lock block 1 to the connecting strip, eliminating the existing mechanical button structure. There is no unlocking button outside, so accidental unlocking will not occur. The structure of the present application is more stable and simple, the production difficulty is reduced, the assembly efficiency is improved, and the productivity is improved.

[0039] 2. The present invention cooperates with the lock piece 1 through the magnetic block 1 in the lock block 1, and utilizes the principle of opposite magnetism attracting each other, so that the front end of the lock block 1 can be sucked into the lock hole, thereby realizing the clamping of the connecting strip. This structure is simple, the clamping is stable, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0041] Figure 2 It is an exploded view of the present invention.

[0042] Figure 3 It is a cross-sectional view of the present invention.

[0043] Figure 4 It is a cross-sectional view of the connecting device and the unlocking member of the present invention.

[0044] Reference numerals: 1, connecting strip; 2, latching position; 3, unlocking member; 4, magnetic block three;

[0045] 100, fixing device; 101, fixing seat; 102, opening; 103, fixing mechanism; 104, second locking block; 105, second locking element; 106, second magnetic block;

[0046] 200. Connecting device; 201. Connecting seat; 202. Lock core mechanism 1; 203. Lock hole; 204. Lock block 1; 205. Lock element 1; 206. Magnetic block 1; 207. Mounting slot 1; 208. End cover 1; 209. Connecting cavity 1; 210. Guide surface 1; 211. Limiting portion 1; 212. Limiting portion 2; 213. Upper connecting seat; 214. Lower connecting seat. DETAILED DESCRIPTION

[0047] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0048] like Figure 1-4 As shown, a child safety long lock mainly includes: a fixing device 100, a connecting device 200, a connecting strip 1 and an unlocking member 3;

[0049] The rear end of the connecting strip 1 is clamped on the fixing device 100, and several clamping positions 2 are opened on the connecting strip 1; a locking hole 203 is opened on the connecting device 200, and the front end of the connecting strip 1 is inserted into the locking hole 203 and clamped to form a locked state; when unlocking is required, it is only necessary to press the unlocking piece 3 against the end face of the connecting device 200 to achieve unlocking.

[0050] The specific structure and operation of this embodiment are as follows.

[0051] The connecting device 200 includes a connecting seat 201 and a lock core mechanism 202, and the lock core mechanism 202 includes a lock block 204 and a lock element 205;

[0052] The connecting seat 201 includes an upper connecting seat 213 and a lower connecting seat 214, which are spliced ​​and fixed, and the locking hole 203 is formed at the joint between the two. A card connection cavity 209 is formed in the upper connecting seat 213, and a through hole is opened at the bottom of the card connection cavity 209. The locking block 204 is installed in the card connection cavity 209, and the front end of the locking block 204 can be extended into the locking hole 203, and the rear end of the locking block 204 is a formed folded edge, which can abut the bottom of the card connection cavity 209, thereby preventing the locking block 204 from escaping from the card connection cavity 209 through the bottom through hole.

[0053] The lock member 205 is installed on the lower connecting seat 214. The installation method can be to open a groove in the lower connecting seat 214 and then install the lock member 205 in the groove. The lock member 205 can be a magnetic member, such as a magnet block.

[0054] The lock element 1 205 can magnetically attract the lock block 1 204 at all times, so that the front end of the lock block 1 204 has a tendency to extend into the lock hole 203.

[0055] When the front end of the connecting strip 1 is inserted into the lock hole 203, when the engaging position 2 moves with the connecting strip 1 to just below the locking block 1 204, the locking block 1 204 enters the engaging position 2 under the action of the locking member 1 205, thereby achieving the engaging of the connecting strip 1 and completing the locking state. At this time, the unlocking member 3 can be placed separately in a high place to prevent children from touching the key.

[0056] The present invention designs the magnetism of the lock piece 205 to control the position of the lock block 204 to realize the locking block 204 being connected to the connecting strip 1, eliminating the existing mechanical button structure. There is no unlocking button outside, so accidental unlocking will not occur. The structure of the present application is more stable and simple, the production difficulty is reduced, the assembly efficiency is improved, and the productivity is improved.

[0057] At the same time, the structure of the present application is very simple, and the connecting device 200 has very few overall components, which can save the design cost of the mold. At the same time, the assembly difficulty is reduced, and the resulting improvement in productivity greatly helps the company's production and realizes revenue generation.

[0058] The unlocking member 3 is provided with a magnetic block 3 4 , which is used to attract the locking block 1 204 .

[0059] The principle by which the lock element 1 205 can attract the lock block is as follows: a magnetic block 1 206 is provided in the lock block 1 204 , and the magnetic block 1 206 and the lock element 1 205 are attracted by the opposite charges of the magnets.

[0060] In order to facilitate the installation of magnetic block 206, the upper end surface of locking block 204 is recessed downward to form a receiving groove, and a hole is punched at the bottom of the receiving groove to penetrate the bottom end surface of locking block 204. Then, magnetic block 206 is installed in the receiving groove, and then the receiving groove is sealed with a cover plate to fix magnetic block 206 on locking block 204.

[0061] The holes on the bottom ensure the magnetic effect.

[0062] The locking block 204 can also be a magnetic part as a whole or a metal part that can be attracted by a magnetic part.

[0063] [Variation 1]

[0064] Alternatively, the lock element 205 can be installed on the upper connecting seat 213, that is, directly above the lock block 204, and the lock element 205 and the magnetic block 206 can be arranged face to face with each other. The principle of like charges repel each other can be used to press the front end of the lock block 204 out of the locking cavity 209, thereby achieving locking.

[0065] When unlocking, the unlocking member 3 is also placed against the upper end surface of the upper connecting seat 213. The magnetic block 3 4 is installed in the unlocking member 3, and the magnetic block 3 4 is used to attract the locking block 1 204, so that the front end of the locking block 1 204 is retracted into the engaging cavity 1 209, thereby achieving unlocking. At this time, the connecting bar 1 can be pulled out of the lock hole 203.

[0066] That is, the magnetic attraction between the magnet block 3 4 and the lock block 1 204 is greater than the repulsive force between the lock element 1 205 and the magnet block 1 206 , thereby achieving unlocking.

[0067] [Variation 2]

[0068] The locking element 205 can be a spring, which is installed above the locking block 204 so that the ends of the spring respectively abut the interior of the upper engaging cavity 209 and the locking block 204, and the front end of the locking block 204 has a tendency to extend into the locking hole 203, thereby achieving engaging.

[0069] When unlocking, the unlocking member 3 is also placed against the upper end surface of the upper connecting seat 213. The magnetic block 3 4 is installed in the unlocking member 3, and the magnetic block 3 4 is used to attract the locking block 1 204, so that the front end of the locking block 1 204 is retracted into the engaging cavity 1 209, thereby achieving unlocking. At this time, the connecting bar 1 can be pulled out of the lock hole 203.

[0070] That is, the magnetic attraction between the magnet block 3 4 and the lock block 1 204 is greater than the elastic force of the spring, and the magnetic attraction is used to overcome the elastic force, thereby achieving unlocking.

[0071] The structure of the above-mentioned engaging cavity 1 209 is formed as follows.

[0072] The upper end surface of the upper connecting seat 213 is recessed downward to form a mounting groove 207, and the bottom of the mounting groove 207 is provided with the through hole; the upper end surface of the connecting seat 201 is installed with an end cover 208, and the end cover 208 cooperates with the mounting groove 207 to form a clamping cavity 209 for accommodating the locking block 204.

[0073] The connection between the end cover 208 and the upper connecting seat 213 can be snap-fitted, such as the cooperation between the snap-fitting column and the hole. As for the snap-fitting structure, those skilled in the art can think of it, so it will not be described in detail.

[0074] The above structure can facilitate the replacement of parts, that is, when damage or demagnetization occurs, it can be easily replaced to ensure the normal use of the lock and avoid unnecessary waste.

[0075] In order to facilitate the connection bar 1 to pass through the lock hole 203, that is, to achieve the connection between the connection bar 1 and the connecting device 200 without the unlocking piece 3, a guide surface 210 is formed at the front end of the locking block 204 at the entrance end facing the lock hole 203.

[0076] When the connecting strip 1 is inserted into the locking hole 203 , the guide surface 1 210 will push the locking block 1 204 toward the engaging cavity 1 209 , thereby enabling the connecting strip 1 to pass through the locking hole 203 and be engaged.

[0077] At the same time, in order to ensure that the guide surface 1 210 is always facing the entrance end of the lock hole 203, it is necessary to constrain the lock block 1 204 in the engaging cavity 1 209 to prevent the lock block 1 204 from rotating in the engaging cavity 1 209. A specific method can be to form a limiting portion 1 211 on the side wall of the installation groove 1 207, and a limiting portion 212 on the rear end of the lock block 1 204. The limiting portion 1 211 and the limiting portion 212 cooperate to constrain the rotation of the lock block 1 204 in the installation groove 1 207. The limiting portion 1 211 and the limiting portion 212 can cooperate with each other in the form of a ridge and groove, or in a surface-to-surface abutment. That is, the cross-section of the engaging cavity 1 209 can be a waist-shaped hole.

[0078] In order to facilitate the installation of the fixing device 100 and the connecting strip 1 , the fixing device 100 is designed to have a structure similar to that of the connecting device 200 , as follows.

[0079] The fixing device 100 at least has:

[0080] The fixing seat 101 is provided with an opening 102 for inserting the end of the connecting strip 1;

[0081] A fixing mechanism 103, which is installed in the fixing seat 101 and is used to clamp the end of the inserted connecting strip 1;

[0082] The fixing mechanism 103 at least comprises:

[0083] The second locking block 104 is mounted in the fixing seat 101, and its front end is movable and extends into the opening 102;

[0084] The second locking member 105 is installed in the fixing seat 101 and is arranged on the end surface of the second locking block 104 so that the front end of the second locking block 104 has a tendency to extend into the opening 102 for clamping the end of the connecting strip 1.

[0085] The opening 102 is conductive on one side, and the connecting strip 1 cannot be inserted further after being inserted to the bottom. At this time, the engaging position 2 is just located below the second locking block 104, thereby achieving engaging and ensuring accurate positioning.

[0086] The second locking member 105 is a magnetic member, which is used to attract the second locking block 104 so that the front end of the second locking block 104 is clamped to the end of the connecting strip 1 .

[0087] The second locking block 104 is provided with a second magnetic block 106 , and the second locking member 105 is installed on the bottom surface of the fixing seat 101 ;

[0088] The magnetic cooperation between the second magnetic block 106 and the second locking element 105 enables the front end of the first locking block 204 to extend into the locking position 2 and be locked.

[0089] The above-mentioned locking block 2 104 can adopt the design scheme of locking block 1 204, which will not be expanded here. Please refer to the above content for details.

[0090] The design of the second locking block 104 is the same as that of the first locking block 204 and will not be described in detail.

[0091] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A child safety lock, characterized in that: include: Fixing device (100); A connecting strip (1), the end of which is snap-fitted into the fixing device (100), and a plurality of snap-fitting positions (2) are provided on the connecting strip (1); A connecting device (200) is provided with a locking hole (203) for inserting the connecting strip (1) and locking the connecting device (200); Wherein, the connecting device (200) comprises: A connecting seat (201) is provided with the locking hole (203); A lock core mechanism (202) is installed in the connecting seat (201) and is used to cooperate with the locking position (2) to lock the connecting strip (1); The lock core mechanism (202) at least comprises: A locking block (204) is installed in the connecting seat (201), and its front end is movable and extends into the locking hole (203); A locking member (205) is installed in the connecting seat (201) and is arranged on the end surface of the locking block (204); The locking member 1 (205) is a magnetic member, which is used to attract the locking block 1 (204), so that the front end of the locking block 1 (204) has a tendency to extend into the locking hole (203), and is used to clamp the clamping position (2) of the connecting strip (1); The connecting seat (201) includes an upper connecting seat (213) and a lower connecting seat (214), which are spliced ​​and fixed, and the lock hole (203) is formed at the joint between the two; the locking member (205) is installed on the lower connecting seat (214); The upper end surface of the upper connecting seat (213) of the connecting seat (201) is recessed downward to form a mounting groove (207), and a through hole is provided at the bottom of the mounting groove (207); An end cover (208) is installed on the upper end surface of the connecting seat (201), and the end cover (208) cooperates with the installation groove (207) to form a clamping cavity (209) for accommodating the locking block (204), and the front end of the locking block (204) can extend from the through hole into the locking hole (203); The front end of the locking block (204) is formed with a guide surface (210) at the entrance end toward the locking hole (203), for guiding the end of the connecting strip (1) to slide over the front end surface of the locking block (204); The side wall of the installation groove 1 (207) is formed with a limiting portion 1 (211), and the rear end of the locking block 1 (204) is formed with a limiting portion 2 (212). The locking block 1 (204) is constrained from rotating in the installation groove 1 (207) by the cooperation between the limiting portion 1 (211) and the limiting portion 2 (212). The fixing device (100) at least comprises: A fixing seat (101) is provided with an opening (102) for inserting the end of the connecting strip (1); A fixing mechanism (103) is installed in the fixing seat (101) and is used to clamp the end of the inserted connecting strip (1); Wherein, the fixing mechanism (103) at least has: The second locking block (104) is installed in the fixing seat (101), and the front end thereof is movable and extends into the opening (102); The second locking member (105) is installed in the fixing seat (101) and is arranged on the end surface of the second locking block (104), so that the front end of the second locking block (104) has a tendency to extend into the opening (102) and is used to clamp the end of the connecting strip (1).

2. The child safety lock according to claim 1, characterized in that: The locking block 1 (204) is provided with a magnetic block 1 (206), and the locking element 1 (205) is installed on the bottom surface of the connecting seat (201).

3. The child safety lock according to claim 1 or 2, characterized in that: The second locking piece (105) is a magnetic piece used to attract the second locking block (104) so ​​that the front end of the second locking block (104) is clamped to the end of the connecting strip (1).

4. The child safety lock according to claim 3, characterized in that: The second locking block (104) is provided with a second magnetic block (106), and the second locking element (105) is installed on the bottom surface of the fixing seat (101).

5. The child safety lock according to claim 1, characterized in that: Also includes: an unlocking member (3) having a third magnetic block (4) installed therein; When the end of the unlocking member (3) abuts against the upper end of the connecting seat (201), the magnetic attraction force of the magnetic block three (4) on the locking block one (204) is greater than the magnetic attraction force of the locking member one (205) on the locking block one (204).

Images