Spring bolt and door lock

Abstract

The utility model provides a lock tongue and a door lock, the lock tongue comprises a lock tongue body, the first side face of the lock tongue body is provided with a connecting part used for being connected with a lock cylinder shaft, the second side face of the lock tongue body is provided with a first inclined part, and the first inclined part gradually inclines towards the third side face in the direction away from the first side face; the second side face and the third side face are located on the front side and the rear side of the first side face respectively. And the two guiding pieces are connected with the fourth side face and the fifth side face, located on the left side and the right side of the first side face, of the spring bolt body correspondingly, and an arc-shaped guiding groove is formed in the side, away from the spring bolt body, of each guiding piece. According to the spring bolt, the machining difficulty is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, in particular to a lock tongue and a door lock. Background Art

[0002] Door locks are an extremely important part of life. Door locks have a long history in my country and have existed as early as more than 5,000 years ago. However, with the development of society, the form of door locks is constantly changing, which also brings different experiences to our lives.

[0003] At present, the more commonly used door locks generally include a lock tongue, a lock core, and a lock body. When in use, the lock tongue can be extended into or out of the lock body by turning the door handle. When the lock tongue extends from the lock body and is extended into the lock tongue groove on the door frame, the door lock plays its role. Therefore, in order to lock the door and the door frame together, the lock tongue of the door lock plays a key role. The existing lock tongue includes a lock tongue body made of steel and a guide member cast based on a mold. Although the existing lock tongue can achieve its function, it has the problems of difficult processing and low service life. Therefore, how to reduce the processing difficulty of the lock tongue and increase the service life is a technical problem that needs to be solved urgently. Utility Model Content

[0004] In view of this, the utility model provides a lock tongue and a door lock to solve one or more technical problems existing in the prior art.

[0005] According to one aspect of the utility model, the utility model provides a lock tongue, the lock tongue comprising:

[0006] A lock tongue body, wherein the first side surface of the lock tongue body has a connection portion for connecting with the lock core shaft, the second side surface has a first inclined portion, and the first inclined portion gradually inclines toward the third side surface in a direction away from the first side surface, and the second side surface and the third side surface are located at the front and rear sides of the first side surface;

[0007] Two guide members are respectively connected to the fourth side surface and the fifth side surface of the lock tongue body located on the left and right sides of the first side surface, and each guide member has an arc-shaped guide groove on one side away from the lock tongue body.

[0008] In some embodiments of the present invention, the guide member has a second inclined portion, the second inclined portion is parallel to the first inclined portion, and an end edge of the second inclined portion is connected to an end edge of the first inclined portion.

[0009] In some embodiments of the present invention, the arc-shaped guide groove extends vertically downward from the top of the guide member to the second inclined portion.

[0010] In some embodiments of the present invention, the guide member and the lock tongue body are adhesively connected; and / or the guide member is cast by a mold.

[0011] In some embodiments of the utility model, the guide member has a trapezoidal slot, the fourth side and the fifth side have trapezoidal protrusions adapted to the trapezoidal slot, and the width of the trapezoidal slot gradually increases in the direction away from the lock tongue body.

[0012] In some embodiments of the present invention, edge grooves are symmetrically provided on the left and right sides of the trapezoidal slot, and protrusions cooperating with the edge grooves are correspondingly provided on the two sides of the trapezoidal protrusion.

[0013] In some embodiments of the present invention, the connecting portion is located in the middle of the first side surface, and the connecting portion includes a column, the column is located on the first side surface, and the column has an axial hole for installing the lock core shaft.

[0014] In some embodiments of the present invention, the central angle of the arc segment of the arc guide groove ranges from 35 degrees to 120 degrees.

[0015] In some embodiments of the present invention, the central angle of the arc segment of the arc-shaped guide groove is 60 degrees; and / or,

[0016] The third side surface of the locking tongue body is provided with a third inclined portion.

[0017] According to another aspect of the present invention, a door lock is also disclosed, and the door lock includes the lock tongue as described in any of the above embodiments.

[0018] The lock tongue disclosed in the above embodiment includes a lock tongue body and a guide member, the guide member is connected to the lock tongue body, and the guide member has an arc-shaped guide groove on one side away from the lock tongue body. The arc-shaped guide groove is provided on the guide member so that the lock tongue can be easily demoulded from the guide member during processing, thereby facilitating processing and reducing processing difficulty; and the lock tongue with the arc-shaped guide groove reduces wear when moving along the lock body compared to the existing lock tongue, thereby improving the service life of the lock tongue. In addition to the above, in order to realize the connection between the guide member and the lock tongue body, the present application is provided with a trapezoidal card slot and an edge groove on the guide member, and the lock tongue body is provided with a trapezoidal protrusion and a protrusion, and this structure further improves the connection stability between the guide member and the lock tongue body.

[0019] Additional advantages, purposes, and features of the present invention will be partially described in the following description, and will become partially apparent to those skilled in the art after studying the following, or may be learned from the practice of the present invention. The purposes and other advantages of the present invention can be achieved and obtained by the structures specifically pointed out in the written description and its claims and the drawings.

[0020] Those skilled in the art will understand that the purposes and advantages that can be achieved by the present invention are not limited to the above specific description, and the above and other purposes that can be achieved by the present invention will be more clearly understood based on the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute a limitation of the present invention. The components in the drawings are not drawn to scale, but are only for the purpose of illustrating the principles of the present invention. In order to facilitate the illustration and description of some parts of the present invention, the corresponding parts in the drawings may be enlarged, that is, they may become larger relative to other components in the exemplary device actually manufactured according to the present invention. In the drawings:

[0022] Figure 1 The figure is a schematic structural diagram of a lock tongue according to an embodiment of the utility model.

[0023] Figure 2 It is a top view of a lock tongue according to an embodiment of the utility model.

[0024] Figure 3 The figure is a schematic structural diagram of a lock tongue body according to an embodiment of the present utility model.

[0025] Figure 4 The structure of the guide member of one embodiment of the utility model is shown in FIG. Figure 1 .

[0026] Figure 5 The structure of the guide member of one embodiment of the utility model is shown in FIG. Figure 2 .

[0027] Reference numerals:

[0028] Lock tongue body 110 Guide member 120 First side surface 111 Second side surface 112 Third side surface 113 First inclined portion 112-1 Connecting portion 114 Trapezoidal protrusion 115 Protruding portion 116 Third inclined portion 117 Arc-shaped guide groove 121 Second inclined portion 122 Trapezoidal slot 123 Edge groove 124 Fourth inclined portion 125 DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model more clear, the embodiment of the utility model is further described in detail below in conjunction with the accompanying drawings. Here, the illustrative embodiment of the utility model and its description are used to explain the utility model, but are not used as a limitation of the utility model.

[0030] It should be noted here that in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the scheme according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0031] It should be emphasized that the terms “include / comprises / has” when used herein refer to the presence of features, elements, steps or components, but do not exclude the presence or addition of one or more other features, elements, steps or components.

[0032] It should also be noted that the directional terms such as "left end" and "right end" in this specification are relative to the position directions shown in the drawings; if there is no special explanation, the term "connection" in this article can refer to not only direct connection, but also indirect connection with an intermediate. Direct connection means that two parts are connected without the help of an intermediate part, and indirect connection means that two parts are connected with the help of other parts.

[0033] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same or similar components.

[0034] Figure 1 This is a schematic diagram of the structure of a lock tongue according to an embodiment of the utility model. Figure 2 FIG. 1 is a top view of a lock tongue according to an embodiment of the present utility model. Figure 1 and Figure 2 As shown, the locking tongue at least includes a locking tongue body 110 and two guide members 120 .

[0035] Among them, the first side surface 111 of the lock tongue body 110 has a connecting portion 114 for connecting to the lock core shaft, the second side surface 112 of the lock tongue body 110 has a first inclined portion 112-1, and the first inclined portion 112-1 gradually inclines toward the third side surface 113 of the lock tongue body 110 in the direction away from the first side surface 111, and the second side surface 112 and the third side surface 113 are relatively located on the front and rear sides of the first side surface 111; the two guide members 120 are respectively connected to the fourth side surface and the fifth side surface of the lock tongue body 110 located on the left and right sides of the first side surface 111, and each of the guide members 120 has an arc-shaped guide groove 121 on the side away from the lock tongue body 110.

[0036] Figure 3This is a schematic diagram of the structure of the lock tongue body 110 according to an embodiment of the present invention. Figure 3 In the illustrated locking tongue body 110, the first side 111 refers to the top surface of the locking tongue body 110, the second side refers to the front side of the locking tongue body 110, the third side 113 refers to the rear side of the locking tongue body 110, and the fourth side and the fifth side refer to the left side and the right side of the locking tongue body 110, respectively. Figure 3 It can be seen that the first inclined portion 112-1 is located on the front side of the lock tongue body 110, and the first inclined portion 112-1 is located in the lower half of the front side, that is, the bottom edge of the first inclined portion 112-1 intersects with the bottom plane of the lock tongue body 110. The first inclined portion 112-1 is inclined inward from the front side of the lock tongue body 110, and the inclination angle of the first inclined portion 112-1 is not limited and can be set according to actual needs.

[0037] like Figure 1 As shown, the two guide members 120 are respectively located on the left and right sides of the lock tongue body 110, and the two guide members 120 are left-right symmetrical structures relative to the central plane of the lock tongue body 110, and the guide members 120 on each side are respectively connected to the side surfaces of the corresponding sides of the lock tongue body 110. In this embodiment, the connection method between the guide member 120 and the lock tongue body 110 is not limited; illustratively, the guide member 120 and the lock tongue body 110 can be connected by bonding.

[0038] In some embodiments, the guide member 120 is cast through a mold. At this time, the arc-shaped guide groove 121 on the guide member 120 not only allows the lock tongue to be better guided during the movement process, but also facilitates the demolding of the guide member after being cast through the mold. The design of the arc-shaped guide groove 121 further reduces the burrs on the guide member 120. Therefore, the guide member of this structure greatly reduces the processing difficulty.

[0039] exist Figure 4 In the guide member 120 shown, the guide member 120 may also have a second inclined portion 122, the second inclined portion 122 is parallel to the first inclined portion 112-1, and the end edge of the second inclined portion 122 is connected to the end edge of the first inclined portion 112-1. In this embodiment, the second inclined portion 122 has the same structure as the first inclined portion 112-1 and the same inclination angle. When the guide member 120 and the lock tongue body 110 are in a connected state, the end edges of the second inclined portion 122 on the guide member 120 and the first inclined portion 112-1 on the lock tongue body 110 are connected and combined into a complete inclined surface or slope surface. Further, the first inclined portion 112-1 and the second inclined portion 122 are both inclined planes. In addition, the first inclined portion 112-1 and the second inclined portion 122 can also be inclined arc-shaped surfaces.

[0040] like Figure 4 As shown, the arc-shaped guide groove 121 on the guide member 120 extends vertically downward from the top of the guide member 120 to the second inclined portion 122. In a specific embodiment, the top plane of the guide member 120 is flush with the top plane of the lock tongue body 110, and the bottom plane of the guide member 120 is flush with the bottom plane of the lock tongue body 110. At this time, it can be understood that the arc-shaped guide groove 121 extends vertically downward from the top plane of the lock tongue to the bottom plane of the lock tongue, that is, the arc-shaped guide groove 121 is through in the height direction of the lock tongue. When the lock tongue is installed on the lock core shaft, the arc-shaped guide groove 121 moves along the guide part on the lock body with the reciprocating movement of the lock core shaft. The lock tongue of this structure can not only complete the guidance well, but also further reduce the wear between the guide groove and the guide part on the lock body, thereby extending the service life of the lock tongue. In this embodiment, the specific parameters of the arc-shaped guide groove 121, such as diameter, center angle, etc., are not specifically limited, and can be set according to the actual structure and size of the guide part on the lock body.

[0041] In one embodiment, the center angle of the arc segment of the arc guide groove 121 is limited to 35 degrees to 120 degrees. For example, when the diameter of the arc segment on the arc guide groove 121 is large, a smaller center angle can be selected, and when the diameter of the arc segment on the arc guide groove 121 is small, a larger center angle can be selected. In an optional embodiment, the center angle of the arc segment on the arc guide groove 121 is specifically set to 60 degrees.

[0042] In one embodiment, the guide member 120 has a trapezoidal slot 123, and the fourth and fifth sides have trapezoidal protrusions 115 adapted to the trapezoidal slot 123, and the width of the trapezoidal slot 123 gradually increases in a direction away from the bolt body 110. Figure 5 As shown, the trapezoidal slot 123 is located on the side of the guide member 120 opposite to the arc-shaped guide slot 121, and the trapezoidal slot 123 extends vertically downward from the top surface of the guide member 120. Figure 5It can be seen that the cross-sectional shape of the trapezoidal slot 123 parallel to the top plane is a trapezoid, and the width of the trapezoid gradually increases from the right side to the left side of the guide member 120; accordingly, the shape of the trapezoidal protrusion 115 on the lock tongue body 110 is similar to the shape of the trapezoidal slot 123, that is, the cross-sectional shape of the trapezoidal protrusion 115 parallel to the top plane is also a trapezoid, and contrary to the trapezoidal slot 123, the outermost width of the trapezoidal protrusion 115 is greater than the innermost width. In this embodiment, the guide member 120 and the lock tongue body 110 are connected through the cooperation of the trapezoidal slot 123 and the trapezoidal protrusion 115, which ensures the reliable stability of the connection. And the outer width of the trapezoidal slot 123 is smaller than the inner width, so when the guide member 120 and the lock tongue body 110 are connected together, the trapezoidal protrusion 115 is prevented from falling off the trapezoidal slot 123, further improving the connection stability of the guide member 120 and the lock tongue body 110.

[0043] from Figure 5 It can be seen that in the width direction of the guide member 120, the trapezoidal slot 123 is located in the middle position. Further, the left and right sides of the trapezoidal slot 123 are symmetrically provided with edge grooves 124, and the two sides of the trapezoidal protrusion 115 are correspondingly provided with protrusions 116 that match the edge grooves 124. The edge grooves 124 are symmetrically arranged in the width direction of the guide member 120. At this time, the edge grooves 124 are arranged on both sides of the edge grooves 124 and close to the front edge and the rear edge of the guide member 120, and the protrusions 116 are arranged at the positions corresponding to the edge grooves 124 on the lock tongue body 110. When the guide member 120 and the lock tongue body 110 are connected as one body, the trapezoidal protrusion 115 matches with the trapezoidal slot 123, and the protrusions 116 match with the edge grooves 124. This structure improves the connection reliability of the guide member 120 and the lock tongue body 110. In addition, in addition to the connection between the guide member 120 and the bolt body 110 through the cooperation between the trapezoidal protrusion 115 and the trapezoidal slot 123 and the cooperation between the protrusion 116 and the edge groove 124, a secondary connection is further performed by gluing.

[0044] In some embodiments of the present invention, the connecting portion 114 is located in the middle of the first side surface 111 of the bolt body 110, and the connecting portion 114 includes a column, which is located on the first side surface 111 and has an axial hole for installing the lock core shaft. Figure 3As shown, a column structure is provided vertically upward from the top surface of the lock tongue body 110, and the column structure is located in the middle of the top plane (first side surface 111) of the lock tongue body 110. The center of the column structure has an axial hole, and the axial hole serves as a connection hole for connecting with the lock cylinder shaft. It can be understood that in this embodiment, the column is provided on the top plane of the lock tongue body 110 to achieve the connection with the lock cylinder shaft is only a preferred example. In other embodiments, a connecting portion 114 of other structures can also be provided to achieve the connection between the lock tongue body 110 and the lock cylinder shaft.

[0045] Further, the third side surface 113 of the lock tongue body 110 has a third inclined portion 117, and the third inclined portion 117 and the first inclined portion 112-1 are located on two opposite side surfaces of the lock tongue body 110. Similar to the first inclined portion 112-1, the third inclined portion 117 is also located at the lower half of the third side surface 113 of the lock tongue body 110, that is, the bottom edge of the third inclined portion 117 intersects with the bottom plane of the lock tongue body 110. In this embodiment, the third inclined portion 117 can also be set as an inclined surface located at the lower half of the third side surface 113, and the inclination angle of the inclined surface is smaller than the inclination angle of the inclined surface on the first inclined portion 112-1.

[0046] Correspondingly, a fourth inclined portion 125 similar to the third inclined portion 117 is also provided on the guide member 120 , and an end edge of the fourth inclined portion 125 is connected to an end edge of the third inclined portion 117 .

[0047] Correspondingly, the utility model also provides a door lock, which includes a lock tongue as described in any of the above embodiments.

[0048] Through the above embodiments, it can be found that the lock tongue and door lock of the utility model include a lock tongue body and a guide member, the guide member is connected to the lock tongue body, and the side of the guide member away from the lock tongue body has an arc-shaped guide groove. The arc-shaped guide groove is provided on the guide member so that the lock tongue is easy to demould the guide member during processing, thereby facilitating processing and reducing processing difficulty; and the lock tongue with the arc-shaped guide groove reduces wear when moving along the lock body compared to the existing lock tongue, thereby improving the service life of the lock tongue. In addition to the above, in order to realize the connection between the guide member and the lock tongue body, the guide member is provided with a trapezoidal card slot and an edge groove, and the lock tongue body is provided with a trapezoidal protrusion and a protrusion, and this structure further improves the connection stability between the guide member and the lock tongue body.

[0049] In the present invention, features described and / or illustrated for one embodiment may be used in the same manner or in a similar manner in one or more other embodiments, and / or combined with features of other embodiments or replace features of other embodiments.

[0050] The above-listed embodiments show and describe the basic principles and main features of the utility model, but the utility model is not limited to the above-mentioned embodiments. Any modifications, equivalent changes and modifications made to the utility model by those skilled in the art without making any creative work should fall within the scope of protection of the technical solution of the utility model.

Claims

1. A lock tongue, characterized in that: The lock tongue comprises: A lock tongue body, wherein the first side surface of the lock tongue body has a connection portion for connecting with the lock core shaft, the second side surface has a first inclined portion, and the first inclined portion gradually inclines toward the third side surface in a direction away from the first side surface, and the second side surface and the third side surface are located at the front and rear sides of the first side surface; Two guide members are respectively connected to the fourth side surface and the fifth side surface of the lock tongue body located on the left and right sides of the first side surface, and each guide member has an arc-shaped guide groove on one side away from the lock tongue body.

2. The lock tongue according to claim 1, characterized in that: The guide member has a second inclined portion, the second inclined portion is parallel to the first inclined portion, and an end edge of the second inclined portion is connected to an end edge of the first inclined portion.

3. The lock tongue according to claim 2, characterized in that: The arc-shaped guide groove extends vertically downward from the top of the guide member to the second inclined portion.

4. The lock tongue according to claim 1, characterized in that: The guide member is adhesively connected to the lock tongue body; and / or the guide member is cast by a mold.

5. The lock tongue according to claim 4, characterized in that: The guide member is provided with a trapezoidal slot, and the fourth side surface and the fifth side surface are provided with trapezoidal protrusions adapted to the trapezoidal slot, and the width of the trapezoidal slot gradually increases in a direction away from the locking tongue body.

6. The locking tongue according to claim 5, characterized in that: The left and right sides of the trapezoidal slot are symmetrically provided with edge grooves, and the two sides of the trapezoidal protrusion are correspondingly provided with protrusions that match the edge grooves.

7. The locking tongue according to claim 1, characterized in that: The connecting portion is located in the middle of the first side surface, and the connecting portion includes a column, the column is located on the first side surface, and the column has an axial hole for installing the lock core shaft.

8. The locking tongue according to claim 1, characterized in that: The central angle of the arc segment of the arc guide groove ranges from 35 degrees to 120 degrees.

9. The locking tongue according to claim 8, characterized in that: The central angle of the arc segment of the arc-shaped guide groove is 60 degrees; and / or, The third side surface of the locking tongue body is provided with a third inclined portion.

10. A door lock, characterized in that: The door lock comprises a locking tongue as claimed in any one of claims 1 to 9.

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