Double-end locking structure

Abstract

The utility model discloses a double-end locking structure, which comprises a front lock, a rear lock, a locking rod and a fixing column, wherein the inner side of the front lock is provided with a locking ruler and a fixing column; a rotating piece is arranged on the inner side of the rear lock; a lock bar hole and a fixing hole are formed in the lock bar; the locking ruler penetrates through the locking ruler hole and is clamped to the rotating piece. The fixing columns extend into the fixing holes; wherein the length of the locking ruler is larger than that of the fixing column, so that during installation, the locking ruler is adjusted to be in a horizontal state and is smoothly inserted into the locking ruler hole. According to the utility model, the structure that the single long locking ruler is matched with the locking ruler hole and the rotating piece is adopted to replace two short locking ruler structures which are clamped in the locking ruler hole in a crossed manner, so that the structure of the double-end lock is optimized, the double-end lock is convenient to install, the installation efficiency is improved, and the transmission is reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a double-head locking structure. Background Art

[0002] The structure adopted by the existing double-headed lock is a structure in which two short lock rulers are cross-clamped in the lock ruler hole. Since the lock ruler is short, the fixing column is first inserted into the fixing hole during installation, and then the lock ruler is inserted into the lock ruler hole. Since the lock ruler is subjected to gravity and will sag, and the fixing column has fixed the lock body in a horizontal state, the lock ruler is trapped between the fixed door body, the shell and the fixing column. It is difficult for a person to reach between the door body and the shell to lift the lock ruler with just a finger. Therefore, when inserting the lock ruler into the lock ruler hole, a tool is needed to lift the lock ruler to a horizontal state so that the lock ruler can be smoothly inserted into the lock ruler hole. Moreover, such an installation process needs to be performed twice, and the installation efficiency is low and it takes a long time. Moreover, since the lock ruler is short, when the door body is thick, the lock ruler cannot penetrate into the lock ruler hole, resulting in a small contact area between the lock ruler and the lock ruler hole, which is prone to transmission slippage, resulting in the door lock being unable to achieve normal opening and closing. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a double-head locking structure to improve the installation efficiency and transmission reliability of the locking.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model embodiment provides a double-head locking structure, comprising:

[0006] A front lock, wherein a locking ruler and a fixing column are provided on the inner side of the front lock;

[0007] A rear lock, wherein a rotating member is provided on the inner side of the rear lock;

[0008] A lock having a ruler locking hole and a fixing hole;

[0009] The locking ruler passes through the locking ruler hole and is clamped on the rotating member; the fixing column extends into the fixing hole;

[0010] The length of the locking ruler is longer than the fixing column, so that during installation, the locking ruler is adjusted to be in a horizontal state and can be smoothly inserted into the locking ruler hole.

[0011] In one embodiment, the locking ruler hole and the locking ruler are both in a straight line shape.

[0012] In one embodiment, the front lock includes a front lock shell and a front lock core rotatably mounted on the front lock shell, and a lock caliper socket is mounted on one end of the front lock core extending out of the front lock shell, and the lock caliper is mounted in the lock caliper socket at one end close to the front lock core.

[0013] In one embodiment, the front lock also includes a limit bolt, one end of the limit bolt is installed on the front lock core, and the other end is installed on the lock ruler socket; the end of the lock ruler installed in the lock ruler socket is provided with a rotating part, the rotating part rotates on the lock ruler socket, and the rotating part and the limit bolt are respectively located on both sides of the lock ruler socket; when the key is inserted into the front lock core and rotated until the limit bolt abuts the rotating part, the limit bolt pushes the rotating part to rotate so that the lock ruler rotates; when the key is inserted into the rear lock core and rotated, the rotating member drives the lock ruler to rotate until the rotating part abuts the limit bolt, and the limit bolt prevents the rotating part from rotating in the direction where the limit bolt is located.

[0014] In one embodiment, the rotating portion is fan-shaped.

[0015] In one embodiment, an annular groove is provided in the rotating member, and a protrusion is provided inside the annular groove. When the rotating member drives the locking ruler to rotate, the protrusion abuts against the locking ruler to drive the locking ruler to rotate.

[0016] In one embodiment, the rear lock includes a rear lock shell and a rear lock core rotatably installed in the rear lock shell, and the rear lock core is provided with a rear connecting portion extending out of the rear lock shell, and the rotating member is detachably connected to the rear connecting portion.

[0017] In one embodiment, an axial slot is formed at one end of the rear connection portion close to the rotating member, and a clamping protrusion is formed at one end of the rotating member close to the rear connection portion, and the clamping protrusion is clamped in the axial slot.

[0018] In one embodiment, the rear connecting portion is further provided with a first radial slot cross-set with the axial slot, the first radial slot is clamped with a first clamping hoop, the first clamping hoop abuts against the clamping protrusion, and is used to fix the clamping protrusion to the axial slot.

[0019] In one embodiment, a second radial slot is provided at one end of the rear connecting portion close to the rear lock shell, and a second clamping hoop is clamped in the second radial slot. The second clamping hoop abuts against the rear lock shell to prevent the rear lock core from falling off the rear lock shell.

[0020] The double-head locking structure of the utility model has the following beneficial effects compared with the prior art: by adopting a single long locking ruler matched with the locking ruler hole and the rotating part structure to replace two short locking ruler structures that need to be matched with the locking ruler hole, the structure of the double-head locking is optimized, the double-head locking is easy to install, the installation efficiency is improved, and the transmission is reliable.

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A schematic diagram of the double-head locking structure provided by the utility model

[0024] Figure 2 An exploded view of the double-head locking structure provided by the utility model;

[0025] Figure 3 A schematic diagram of the structure of the front lock provided by the utility model;

[0026] Figure 4 An exploded view of the front lock provided by the utility model;

[0027] Figure 5 A schematic diagram of the structure of the rear lock provided by the utility model;

[0028] Figure 6 An exploded view of the rear lock provided by the utility model;

[0029] Figure 7 The utility model provides a structural schematic diagram of the lock.

[0030] Description of Reference Numerals

[0031] 1. front lock; 11. lock ruler; 111. rotating part; 1111. first abutment point; 1112. second abutment point; 12. fixing column; 13. front lock shell; 14. front lock core; 15. lock ruler holder; 151. mounting hole; 16. stop bolt; 161. abutment section; 162. mounting section;

[0032] 2. rear lock; 21. rotating member; 211. annular groove; 212. protrusion; 213. clamping protrusion; 22. rear lock shell; 23. rear lock core; 231. rear connecting part; 232. axial clamping groove; 233. first radial clamping groove; 234. first clamping hoop; 235. second radial clamping groove; 236. second clamping hoop;

[0033] 3. Locking tip; 31. Locking hole; 32. Fixing hole; 33. Lock tongue driving part. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0041] See also Figures 1 to 7 As shown, the utility model discloses a specific embodiment of a double-head locking structure, including:

[0042] A front lock 1, the inner side of which is provided with a lock ruler 11 and a fixing column 12;

[0043] A rear lock 2, a rotating member 21 is provided on the inner side of the rear lock 2;

[0044] A lock 3, wherein the lock 3 is provided with a lock hole 31 and a fixing hole 32;

[0045] The locking ruler 11 passes through the locking ruler hole 31 and is clamped to the rotating member 21; the fixing column 12 extends into the fixing hole 32;

[0046] The length of the locking ruler 11 is longer than the fixing column 12 , so that during installation, the locking ruler 11 is adjusted to be in a horizontal state and can be smoothly inserted into the locking ruler hole 31 .

[0047] Specifically, when installing the double-head locking structure, the lock 3 is first installed on the door body, and then the front lock 1 is installed. During the installation of the front lock 1, since the length of the lock ruler 11 is longer than the fixed column 12, the lock ruler 11 is first inserted into the lock ruler hole 31, and the fixed column 12 has not yet been inserted into the fixed hole 32. Even if the lock ruler 11 sags due to gravity, the lock ruler 11 can be manually lifted to make the lock ruler 11 in a horizontal state and smoothly inserted into the lock ruler hole 31, which is convenient for adjusting the lock ruler 11. After the front end of the lock ruler 11 is smoothly inserted into the lock ruler hole 31, the entire front lock 1 is restored to a horizontal state, that is, the fixed column 12 is restored to a horizontal state, and the fixed column 12 can be inserted into the fixed hole 32. At this time, the entire front lock 1 is pressed against the door body. After the front lock 1 is pressed against the door body, the lock ruler 11 is supported by the lock ruler hole 31 to maintain a horizontal state, while the rear lock 2 does not have a lock ruler 11. Therefore, when installing the rear lock 2, it is only necessary to correspondingly snap the rotating member 21 onto the lock ruler 11, and then press the entire rear lock 2 against the door body, and fix the front lock 1 and the rear lock 2 to complete the installation of the entire double-head locking structure. The entire installation process is convenient, and there is no need to use tools to adjust the lock ruler 11, which improves the installation efficiency of the double-head locking structure and shortens the installation time. After the double-head locking structure is installed, the lock ruler 11 is relatively long, so the transmission structure of the lock ruler 11, the lock ruler hole 31 and the rotating member 21 is relatively stable, so there will be no transmission slippage, which improves the transmission reliability of the double-head locking structure.

[0048] See also Figures 1 to 4 As shown, in a specific embodiment, the locking ruler hole 31 and the locking ruler 11 are both in a straight line shape.

[0049] Specifically, the lock 3 includes a bolt driver 33 and a bolt (not shown) connected to the bolt driver 33 by transmission. The lock ruler hole 31 is provided on the bolt driver 33. When the lock ruler 11 rotates, the lock ruler 11 drives the bolt driver 33 to rotate through the lock ruler hole 31, so that the lock tongue driver 33 drives the bolt to extend or retract from the door body. By setting the lock ruler hole 31 and the lock ruler 11 in a straight shape, the structure of the lock ruler hole 31 and the lock ruler 11 is relatively simple, which is convenient for inserting the lock ruler 11 into the lock ruler hole 31, and the transmission is stable. When the lock ruler 11 is inserted into the lock ruler hole 31, the lock ruler 11 is in a horizontal or vertical state, the lock ruler hole 31 corresponds to the lock ruler 11, and the horizontal and vertical states of the lock ruler hole 31 correspond to the state of the bolt being fully extended and fully retracted, respectively, so as to judge whether the state of the bolt being fully extended and fully retracted conforms to the door body. In other embodiments, the lock ruler hole 31 and the lock 3 can also be set in other shapes such as a T shape or an S shape.

[0050] See also Figure 4As shown, in a specific embodiment, the front lock 1 includes a front lock shell 13 and a front lock core 14 rotatably mounted on the front lock shell 13, and a lock ruler holder 15 is mounted on one end of the front lock core 14 extending out of the front lock shell 13, and the lock ruler 11 is mounted in the lock ruler holder 15 at one end close to the front lock core 14.

[0051] Specifically, the lock ruler holder 15 is detachably connected to the front lock core 14, so the lock ruler 11 and the front lock core 14 are also detachably connected, so as to facilitate the replacement of the damaged or inappropriate length of the lock ruler 11. At the same time, the lock ruler holder 15 is also used to prevent the front lock core 14 from falling off from the front lock housing 13.

[0052] See also Figure 3 and Figure 4 As shown, in a specific embodiment, the front lock 1 also includes a limit bolt 16, one end of the limit bolt 16 is installed on the front lock core 14, and the other end is installed on the lock ruler holder 15; one end of the lock ruler 11 installed in the lock ruler holder 15 is provided with a rotating part 111, the rotating part 111 rotates on the lock ruler holder 15, and the rotating part 111 and the limit bolt 16 are respectively located on both sides of the lock ruler holder 15; when the key is inserted into the front lock core 14 and rotated until the limit bolt 16 abuts against the rotating part 111, the limit bolt 16 pushes the rotating part 111 to rotate so that the lock ruler 11 rotates; when the key is inserted into the rear lock core 23 and rotated, the rotating member 21 drives the lock ruler 11 to rotate until the rotating part 111 abuts against the limit bolt 16, and the limit bolt 16 prevents the rotating part 111 from rotating in the direction where the limit bolt 16 is located.

[0053] Specifically, a first abutment point 1111 and a second abutment point 1112 are respectively provided on both sides of the rotating part 111, and the arc space between the first abutment point 1111 and the second abutment point 1112 is the limiting space where the limit bolt 16 is located. In the initial state, the limit bolt 16 is located in the middle of the limiting space, so that there is an idle space between the limit bolt 16 and the lock ruler 11, avoiding the position that will cause the front lock core 14 to get stuck, thereby avoiding the phenomenon that the key cannot be pulled out when the door is locked by the front lock core 14. When the key is inserted into the front lock core 14 and rotated until the limit bolt 16 abuts the first abutment point 1111 or the second abutment point 1112, the limit bolt 16 pushes the rotating part 111 to rotate, so that the lock ruler 11 rotates synchronously and drives the lock tongue driving member 33 to rotate so that the lock tongue extends or retracts. When the key is inserted into the rear lock core 23 and rotated, the rotating member 21 drives the lock ruler 11 to rotate to the first abutment point 1111 or the second abutment point 1112 to abut the limit bolt 16. The limit bolt 16 prevents the rotating part 111 from rotating in the direction of the limit bolt 16 to prevent the key from rotating excessively.

[0054] Preferably, the stopper bolt 16 includes an abutting section 161 and a mounting section 162, and the abutting section 161 and the mounting section 162 are an integrally formed structure. The abutting section 161 is a cylinder mounted on the front lock core 14 for abutting the rotating portion 111; the mounting section 162 is a cylinder mounted on the lock caliper holder 15, and the lock caliper holder 15 is provided with at least one mounting hole 151 for the mounting section 162 to be inserted; and the diameter of the abutting section 161 is larger than the diameter of the mounting section 162, so as to prevent the stopper bolt 16 from falling off from the lock caliper holder 15, and at the same time improve the supporting strength of the stopper bolt 16, and facilitate installation.

[0055] In one specific embodiment, the rotating portion 111 is fan-shaped.

[0056] Specifically, by configuring the rotating portion 111 to be in a fan shape, the structure of the rotating portion 111 is relatively stable and not easily damaged, and the locking ruler 11 can be stably installed in the locking ruler holder 15 .

[0057] See also Figure 5 and Figure 6 In a specific embodiment, an annular groove 211 is provided in the rotating member 21, and a protrusion 212 is provided inside the annular groove 211. When the rotating member 21 drives the locking ruler 11 to rotate, the protrusion 212 abuts against the locking ruler 11 to drive the locking ruler 11 to rotate.

[0058] Specifically, by providing the annular groove 211 and the protrusion 212, an idle space is also reserved between the protrusion 212 and the lock ruler 11, avoiding the position that will cause the rear lock core 23 to get stuck, thereby avoiding the phenomenon that the key cannot be pulled out when the door is locked by the rear lock core 23.

[0059] Preferably, the protrusion 212 is V-shaped, and both sides are arranged along the radius of the annular groove 211, thereby increasing the contact area between the protrusion 212 and the straight-shaped locking ruler 11, reducing the pressure on the protrusion 212, and making the structure stable and not easy to be damaged.

[0060] In a specific embodiment, the rear lock 2 includes a rear lock shell 22 and a rear lock core 23 rotatably installed in the rear lock shell 22, and the rear lock core 23 is provided with a rear connecting portion 231 extending from the rear lock shell 22, and the rotating member 21 is detachably connected to the rear connecting portion 231.

[0061] Specifically, the rotating member 21 is detachably connected to the rear connecting portion 231 , so that the assembly and parts replacement of the rear lock 2 are facilitated.

[0062] In a specific embodiment, an axial slot 232 is defined at one end of the rear connection portion 231 close to the rotating member 21 , and a locking protrusion 213 is defined at one end of the rotating member 21 close to the rear connection portion 231 . The locking protrusion 213 is locked in the axial slot 232 .

[0063] Specifically, the rear connecting portion 231 is further provided with a first radial clamping groove 233 arranged crosswise with the axial clamping groove 232, and the first radial clamping groove 233 is clamped with a first clamping hoop 234, and the first clamping hoop 234 abuts against the clamping protrusion 213, and is used to fix the clamping protrusion 213 to the axial clamping groove 232. By providing the clamping protrusion 213 and the first clamping hoop 234, the rotating member 21 can be stably fixed to the first radial clamping groove 233 on the rear lock core 23.

[0064] In a specific embodiment, a second radial clamping groove 235 is further provided at one end of the rear connecting portion 231 close to the rear lock housing 22, and a second clamping hoop 236 is clamped in the second radial clamping groove 235. The second clamping hoop 236 abuts against the rear lock housing 22 to prevent the rear lock core 23 from falling off from the rear lock housing 22. By providing the second clamping hoop 236, in addition to preventing the rear lock core 23 from falling off from the rear lock housing 22, the assembly of the rear lock 2 is also facilitated.

[0065] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A double-head locking structure, It is characterized in that include: A front lock, wherein a locking ruler and a fixing column are provided on the inner side of the front lock; A rear lock, wherein a rotating member is provided on the inner side of the rear lock; A lock having a ruler locking hole and a fixing hole; The locking ruler passes through the locking ruler hole and is clamped on the rotating member; the fixing column extends into the fixing hole; The length of the locking ruler is longer than the fixing column, so that during installation, the locking ruler is adjusted to be in a horizontal state and can be smoothly inserted into the locking ruler hole.

2. The double-head locking structure according to claim 1, It is characterized in that The locking ruler hole and the locking ruler are both in a straight line shape.

3. The double-head locking structure according to claim 1, It is characterized in that The front lock includes a front lock shell and a front lock core rotatably mounted on the front lock shell, one end of the front lock core extending out of the front lock shell is mounted with a lock caliper socket, and one end of the lock caliper close to the front lock core is mounted in the lock caliper socket.

4. The double-head locking structure according to claim 3, It is characterized in that The front lock also includes a limit bolt, one end of which is installed on the front lock core, and the other end is installed on the lock ruler seat; one end of the lock ruler installed in the lock ruler seat is provided with a rotating part, the rotating part rotates on the lock ruler seat, and the rotating part and the limit bolt are respectively located on both sides of the lock ruler seat; when the key is inserted into the front lock core and rotated until the limit bolt abuts the rotating part, the limit bolt pushes the rotating part to rotate so that the lock ruler rotates; when the key is inserted into the rear lock core and rotated, the rotating member drives the lock ruler to rotate until the rotating part abuts the limit bolt, and the limit bolt prevents the rotating part from rotating in the direction where the limit bolt is located.

5. The double-head locking structure according to claim 4, It is characterized in that The rotating part is in a fan shape.

6. The double-head locking structure according to claim 1, It is characterized in that An annular groove is provided in the rotating member, and a protrusion is provided on the inner side of the annular groove. When the rotating member drives the locking ruler to rotate, the protrusion abuts against the locking ruler to drive the locking ruler to rotate.

7. The double-head locking structure according to claim 1, It is characterized in that The rear lock includes a rear lock shell and a rear lock core rotatably installed in the rear lock shell, and the rear lock core is provided with a rear connecting portion extending out of the rear lock shell, and the rotating member is detachably connected to the rear connecting portion.

8. The double-head locking structure according to claim 7, It is characterized in that An axial slot is formed at one end of the rear connection portion close to the rotating member, and a clamping protrusion is formed at one end of the rotating member close to the rear connection portion, and the clamping protrusion is clamped in the axial slot.

9. The double-head locking structure according to claim 8, It is characterized in that The rear connecting portion is further provided with a first radial clamping groove arranged crosswise with the axial clamping groove, the first radial clamping groove is clamped with a first clamping hoop, and the first clamping hoop abuts against the clamping protrusion for fixing the clamping protrusion to the axial clamping groove.

10. The double-head locking structure according to claim 7, It is characterized in that The rear connecting portion is also provided with a second radial slot at one end close to the rear lock shell, and the second radial slot is clamped with a second clamping hoop, which abuts against the rear lock shell to prevent the rear lock core from falling off from the rear lock shell.

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