Lock catch box with backlash compensation function

Abstract

The utility model provides a lock catch box with a clearance compensation function, which comprises a lock catch box body, a compensation tongue and a bias piece, the lock catch box body is provided with a spring bolt cavity for a spring bolt to insert, the compensation tongue is provided with a compensation surface, and the bias piece is arranged between the compensation tongue and the lock catch box body. When the spring bolt is inserted into the spring bolt cavity, the bias pressure piece has bias pressure for driving the compensation bolt compensation face to abut against the spring bolt, then the compensation bolt compensation face can abut against the spring bolt when the spring bolt is inserted into the spring bolt cavity, in the state, the door body abuts against the door frame in the door closing direction, and therefore the spring bolt cannot move in the door closing direction any more. Meanwhile, as the compensation tongue abuts against the lock tongue, the lock tongue cannot move in the door opening direction, and the state that the door body is stably fixed is achieved. When a larger gap is encountered, the compensation tongue slides towards the lock tongue end under the action of the bias pressing piece so that the compensation face can abut against the lock tongue at a higher point, at the moment, the compensation tongue can still firmly abut against the lock tongue, and therefore the effect that the door body is stably fixed is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a lock box with a gap compensation function. Background Art

[0002] At present, in the process of using the conventional lock, a lock body on the door body extends a lock tongue, and the lock tongue extends into a lock hole of a lock box to achieve a locked state.

[0003] Due to the inevitable processing deviations in the door manufacturing and lock assembly processes, there will inevitably be gaps of varying sizes between the lock tongue and the side walls of the lock hole on the lock box. The existence of this gap will cause problems such as shaking and non-sealing after the door is locked. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is that in the prior art, due to the inevitable processing deviations in the processes of door body manufacturing and lock assembly, there will inevitably be gaps of varying sizes between the lock tongue and the side walls of the lock hole on the lock box. The existence of this gap will cause the door body to shake after being locked and not seal.

[0005] To this end, the utility model provides a lock box with a gap compensation function, comprising:

[0006] The lock box body has a lock tongue cavity for inserting the lock tongue;

[0007] A compensation tongue, movably arranged in the cavity of the lock tongue, the compensation tongue having a compensation surface;

[0008] A biasing member, disposed between the compensation tongue and the lock box body;

[0009] When the lock tongue is inserted into the lock tongue cavity, the biasing member has a biasing force that drives the compensation surface of the compensation tongue to abut against the lock tongue.

[0010] Optionally, the compensation tongue is slidably connected to the lock box body along the direction of insertion or removal of the lock tongue, and the compensation surface is a slope surface, which gradually rises along the direction of insertion of the lock tongue.

[0011] Optionally, the lock box body comprises:

[0012] A lock plate, on which a through hole suitable for the lock tongue to be inserted is provided;

[0013] A buckle box is fixed on the inner side of the lock plate, and the buckle box has a placement cavity with an opening on one side, and the opening end of the placement cavity corresponds to the through hole on the lock plate to form a lock tongue cavity.

[0014] Optionally, the compensation tongue is provided with a long limiting groove opened along its moving direction, and the buckle box is correspondingly provided with a limiting portion slidably arranged in the long limiting groove.

[0015] Optionally, the limiting portion is a groove wall of a through groove opened on the cavity wall of the placement cavity, and the compensating tongue is slidably arranged in the through groove.

[0016] Optionally, the biasing member is a columnar elastic member;

[0017] A blind hole is provided on the compensation tongue, one end of the biasing member is inserted into the blind hole to abut against the compensation tongue, and the other end of the biasing member abuts against the wall of the through groove on the buckle box.

[0018] Optionally, a stabilizing member is provided between the compensating tongue and the buckle box to stabilize the movement of the compensating tongue.

[0019] Optionally, the stabilizing member is a guide pin fixed to the wall of the buckle box through slot;

[0020] The guide pin is inserted into the blind hole on the compensation tongue, and the biasing member is sleeved on the surface of the guide pin.

[0021] Optionally, the biasing member is a cylindrical spring.

[0022] The utility model provides a lock box with a gap compensation function, which has the following advantages:

[0023] 1. The utility model provides a lock box with a gap compensation function, comprising a lock box body, a compensation tongue and a biasing member, wherein the lock box body has a lock tongue cavity for inserting a lock tongue, the compensation tongue is movably arranged in the lock tongue cavity, the compensation tongue has a compensation surface, and the biasing member is arranged between the compensation tongue and the lock box body. When the lock tongue is inserted into the lock tongue cavity, the biasing member has a biasing force that drives the compensation surface of the compensation tongue to abut against the lock tongue.

[0024] In the lock box with gap compensation function of this structure, when the lock tongue is inserted into the lock tongue cavity, as analyzed above, there will inevitably be gaps of different sizes between the lock tongue and the side wall of the lock tongue cavity, so a compensation tongue is movably arranged in the lock tongue cavity, and when the lock tongue is inserted into the lock tongue cavity, the biasing member has a biasing force that drives the compensation surface of the compensation tongue to abut against the lock tongue, thereby enabling the compensation surface of the compensation tongue to abut against the lock tongue when the lock tongue is inserted into the lock tongue cavity. In this state, the door body has already supported the door frame in the door closing direction, so the lock tongue can no longer move in the door closing direction, and at the same time, because the compensation tongue abuts against the lock tongue, the lock tongue can no longer move in the door opening direction, that is, the door body is stably fixed. When encountering a larger gap, the compensation tongue will slide toward the lock tongue end under the action of the biasing member to abut the lock tongue with the compensation surface at a higher point, and at this time, the compensation tongue can still firmly abut the lock tongue, thereby achieving the effect of the door body being stably fixed.

[0025] 2. The utility model provides a lock box with a gap compensation function, wherein the compensation tongue is provided with a limit slot along its moving direction, and the lock box is provided with a limit portion slidably arranged in the limit slot. The limit portion is a slot wall of a through slot opened on the wall of the placement cavity, and the compensation tongue is slidably arranged in the through slot.

[0026] The lock box with this structure and the gap compensation function is realized by arranging a through groove on the cavity wall, and the upper and lower groove walls of the through groove serve as limiting parts. The compensation tongue is slidably arranged in the through groove, and the limiting long grooves on the upper and lower sides of the compensation tongue are sleeved on the upper and lower groove walls of the through groove, so that the compensation tongue can slide inside the through groove along the length direction of the upper and lower groove walls.

[0027] 3. The utility model provides a lock buckle box with a gap compensation function, wherein a stabilizing member is provided between the compensation tongue and the buckle box to stabilize the movement of the compensation tongue. The stabilizing member is a guide pin fixed to the wall of the buckle box through slot; the guide pin is inserted into a blind hole on the compensation tongue, and the biasing member is sleeved on the surface of the guide pin.

[0028] In the lock buckle box with gap compensation function of this structure, the stabilizing member is a guide pin fixed to the wall of the buckle box through slot, the guide pin is inserted into the blind hole on the compensation tongue, and the biasing member is sleeved on the surface of the guide pin. By providing the guide pin, it can be ensured that the biasing member is stably located between the buckle box and the compensation tongue, and the deformation of the biasing member is always consistent with the axial direction of the guide pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 This is an assembly state diagram of a lock box with a gap compensation function provided in an embodiment of the utility model;

[0031] Figure 2 An exploded view of the structure of a lock box with a gap compensation function provided in an embodiment of the utility model;

[0032] Figure 3 A cross-sectional view of a lock box with a gap compensation function provided in an embodiment of the utility model;

[0033] Figure 4A schematic diagram of the position of a lock box with a gap compensation function provided in an embodiment of the utility model;

[0034] Figure 5 A diagram illustrating the compensation function of a lock box with a gap compensation function provided in an embodiment of the utility model;

[0035] Figure 6 It is a schematic structural diagram of a solution for removing the guide pin of a lock box with a gap compensation function provided in an embodiment of the utility model.

[0036] Description of reference numerals:

[0037] 1- Locking plate;

[0038] 2- Buckle box;

[0039] 3-compensatory tongue;

[0040] 4- Fasten the screws;

[0041] 5-guide pin;

[0042] 6- biasing member;

[0043] 7-Lock tongue. DETAILED DESCRIPTION

[0044] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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 ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0046] Example 1

[0047] At present, in the process of using the traditional lock, the lock body on the door extends the lock tongue, and the lock tongue extends into the lock hole of the lock box to achieve the locked state. Due to the inevitable processing deviation in the process of door manufacturing and lock assembly, there will inevitably be gaps of varying sizes between the lock tongue and the side wall of the lock hole on the lock box. The existence of this gap will cause problems such as shaking and non-sealing after the door is locked.

[0048] To this end, this embodiment provides a lock box with a gap compensation function, such as Figures 1 to 6 As shown, it includes a lock box body, a compensation tongue 3 and a biasing member 6.

[0049] The lock case has a lock tongue cavity for inserting a lock tongue 7, the compensation tongue 3 is movably arranged in the lock tongue cavity, the compensation tongue 3 has a compensation surface, and the biasing member 6 is arranged between the compensation tongue 3 and the lock case. When the lock tongue 7 is inserted into the lock tongue cavity, the biasing member 6 has a biasing force that drives the compensation surface of the compensation tongue 3 to abut against the lock tongue 7.

[0050] When the lock tongue 7 is inserted into the lock tongue cavity, as analyzed above, there will be gaps of varying sizes between the lock tongue 7 and the side wall of the lock tongue cavity, so the compensation tongue 3 is movably arranged in the lock tongue cavity. When the lock tongue 7 is inserted into the lock tongue cavity, the biasing member 6 has a biasing force that drives the compensation surface of the compensation tongue 3 to abut against the lock tongue 7, thereby enabling the compensation surface of the compensation tongue 3 to abut against the lock tongue 7 when the lock tongue 7 is inserted into the lock tongue cavity. In this state, the door body has already supported the door frame in the closing direction, so the lock tongue 7 cannot move in the closing direction ( Figure 5 As shown in the upward direction), the compensation tongue 3 is pressed against the lock tongue 7, so the lock tongue 7 cannot move in the direction of opening the door ( Figure 5 The door body moves in the downward direction as shown, that is, the door body is stably fixed. Figure 5 As shown in the right figure, when encountering a larger gap, the compensation tongue 3 will slide toward the end of the lock tongue 7 (to the right in the figure) under the action of the biasing member 6 to press the higher point of the compensation surface against the lock tongue 7. At this time, the compensation tongue 3 can still firmly press the lock tongue 7, thereby achieving the effect of stabilizing the door body.

[0051] In this embodiment, the compensation tongue 3 is slidably connected to the lock box body along the insertion or extraction direction of the lock tongue 7, and the compensation surface is a slope surface, which gradually rises along the insertion direction of the lock tongue 7, that is, when the lock tongue 7 is inserted into the lock tongue cavity, the slope surface of the compensation surface can cooperate with the slope surface of the lock tongue 7 to abut against each other. Figure 3 In the embodiment shown, the direction of insertion or extraction of the lock tongue 7 is Figure 3 Horizontal direction in .

[0052] In this embodiment, if Figure 1 and Figure 2As shown, the lock box body includes a lock plate 1 and a lock box 2 fixed to the lock plate 1 by a fastening screw 4. Specifically, the lock plate 1 is provided with a through hole suitable for inserting the lock tongue 7, and the lock box 2 is fixed to the inner side of the lock plate 1. The lock box 2 has a placement cavity with one side open, and the open end of the placement cavity corresponds to the through hole on the lock plate 1 to form a lock tongue cavity. Among them, the lock plate 1 is fixed to the door frame, and the inner side of the lock plate 1 refers to the side facing the door frame.

[0053] In this embodiment, if Figure 2 and Figure 4 As shown, the compensation tongue 3 is provided with a limit slot along its moving direction, and the buckle box 2 is correspondingly provided with a limit portion slidably arranged in the limit slot. By providing the limit portion and the limit slot cooperating therewith on the buckle box 2, the moving direction of the compensation tongue 3 can be limited.

[0054] Specifically, in Figure 2 In the embodiment shown, the limiting part is a groove wall of a through groove opened on the wall of the placement cavity, and the compensation tongue 3 is slidably arranged in the through groove. In this embodiment, the biasing member 6 is a columnar elastic member, and a blind hole is provided on the compensation tongue 3. One end of the biasing member 6 is inserted into the blind hole to abut against the compensation tongue 3, and the other end of the biasing member 6 abuts against the groove wall of the through groove on the buckle box 2.

[0055] By setting a through groove on the cavity wall, the upper and lower groove walls of the through groove serve as limiting parts, the compensation tongue 3 is slidably set in the through groove, and the limiting long grooves on the upper and lower sides of the compensation tongue 3 are sleeved on the upper and lower groove walls of the through groove, so that the compensation tongue 3 can slide inside the through groove along the length direction of the upper and lower groove walls. Before the lock tongue 7 is inserted into the lock tongue cavity, the compensation tongue 3 is in a position under the biasing force of the biasing member 6. Figure 3 At the position shown, when the lock tongue 7 is inserted into the lock tongue cavity, the lock tongue 7 will abut against the compensation surface of the compensation tongue 3 and push the compensation tongue 3 to move toward the inside of the lock tongue cavity until Figure 5 The state shown in the two figures completes the compensation of the clearance of the lock tongue 7.

[0056] In this embodiment, a stabilizing member is provided between the compensating tongue 3 and the buckle box 2 to stabilize the movement of the compensating tongue 3 .

[0057] like Figures 3 to 5 As shown, the stabilizing member is a guide pin 5, which is fixed to the wall of the through groove of the buckle box 2, the guide pin 5 is inserted into the blind hole on the compensation tongue 3, and the biasing member 6 is sleeved on the surface of the guide pin 5. By providing the guide pin 5, it can be ensured that the biasing member 6 is stably located between the buckle box 2 and the compensation tongue 3, and the deformation of the biasing member 6 is always consistent with the axial direction of the guide pin 5.

[0058] Example 2

[0059] This embodiment provides a lock box with a gap compensation function, which is different from the lock box 2 provided in embodiment 1 in that:

[0060] like Figure 6 As shown, in this embodiment, the outer shape of the compensation tongue 3 is lengthened so that the inner cavity after the buckle box 2 and the compensation tongue 3 are engaged can limit the running trajectory of the biasing member 6. The deformation of the biasing member 6 can always be kept consistent with the axial direction of the guide pin 5 without setting the guide pin 5.

[0061] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A lock box with a gap compensation function, characterized in that: include: The lock box body has a lock tongue cavity for inserting a lock tongue (7); A compensation tongue (3) is movably arranged in the cavity of the lock tongue, and the compensation tongue (3) has a compensation surface; A biasing member (6) is disposed between the compensation tongue (3) and the lock box body; When the lock tongue (7) is inserted into the lock tongue cavity, the biasing member (6) has a biasing force that drives the compensation surface of the compensation tongue (3) to abut against the lock tongue (7).

2. The lock box with gap compensation function according to claim 1, characterized in that: The compensation tongue (3) is slidably connected to the lock box body along the insertion or extraction direction of the lock tongue (7); the compensation surface is a slope surface, and the slope surface height gradually increases along the insertion direction of the lock tongue (7).

3. The lock box with gap compensation function according to claim 1 or 2, characterized in that: The lock box body comprises: A lock plate (1) having a through hole for inserting a lock tongue (7); A buckle box (2) is fixed on the inner side of the locking plate (1), and the buckle box (2) has a placement cavity with one side open, and the opening end of the placement cavity corresponds to the through hole on the locking plate (1) to form a lock tongue cavity.

4. The lock box with gap compensation function according to claim 3, characterized in that: The compensation tongue (3) is provided with a long limiting groove opened along its moving direction, and the buckle box (2) is correspondingly provided with a limiting portion slidably arranged in the long limiting groove.

5. The lock box with gap compensation function according to claim 4, characterized in that: The limiting portion is a groove wall of a through groove opened on the wall of the placement cavity, and the compensation tongue (3) is slidably arranged in the through groove.

6. The lock box with gap compensation function according to claim 5, characterized in that: The biasing member (6) is a columnar elastic member; The compensation tongue (3) is provided with a blind hole, one end of the biasing member (6) is inserted into the blind hole to abut against the compensation tongue (3), and the other end of the biasing member (6) abuts against the wall of the through groove on the buckle box (2).

7. The lock box with gap compensation function according to claim 3, characterized in that: A stabilizing member is provided between the compensation tongue (3) and the buckle box (2) for stabilizing the movement of the compensation tongue (3).

8. The lock box with gap compensation function according to claim 7, characterized in that: The stabilizing member is a guide pin (5) fixed to the wall of the through slot of the buckle box (2); The guide pin (5) is inserted into the blind hole on the compensation tongue (3), and the biasing member (6) is sleeved on the surface of the guide pin (5).

9. The lock box with gap compensation function according to claim 6, characterized in that: The biasing member (6) is a columnar spring.

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