Bolt hidden type door lock easy to assemble

Abstract

The utility model discloses a bolt hidden type door lock easy to assemble, which comprises a square shaft in the shape of a square column, and further comprises two handle components which are arranged on two sides of the square shaft and are oppositely arranged, the handle assembly comprises a handle, a mounting base and a cover cap, the handle extends transversely and then is bent to form a bent part, a protruding column is integrally formed at the tail end of the bent part, a clamping groove used for containing and locking the square shaft is formed in the protruding column, a through hole is formed in the mounting base, the square shaft can pass through the through hole, and the square shaft can pass through the through hole. The cover cap used for shielding the bolt assembly is arranged, the first annular groove used for being locked with the installation base is formed in the cover cap, a worker or a user can press the installation base in the cover cap in a direct pressing mode, and operation is convenient and firm; according to the utility model, the square block is arranged at the head part of the screw sleeve, so that when the two mounting seats are connected with each other through the bolt assembly, the screw sleeve does not rotate, and the mounting is convenient.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, and in particular to a bolt-concealed door lock that is easy to assemble. Background Technology

[0002] A handle is a lever installed on a door to control the extension or retraction of the door latch. It is usually fixed to the door by a mounting bracket.

[0003] The mounting bracket needs to be connected to the door, and the connection between the mounting bracket and the door is usually made by bolts or screws. However, exposed bolts will affect the overall aesthetics of the handle or the door. Therefore, it needs to be improved to conceal the bolts inside the handle mounting bracket.

[0004] In addition, as shown in the door lock handle device disclosed in application number CN201320761647.7, the current assembly process between the handle and the mounting base in door locks is relatively complicated, and there are many parts inside. Therefore, it needs to be simplified to improve production efficiency. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides an easy-to-assemble bolt-concealed door lock to solve the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: an easy-to-assemble bolt-concealed door lock, including a square column-shaped shaft, and two handle assemblies arranged on both sides of the square shaft and facing each other;

[0007] The handle assembly includes a handle, a mounting base, and a cover;

[0008] The handle extends laterally and then bends to form a bent portion. The end of the bent portion is integrally formed with a protrusion. The protrusion has a slot for accommodating and locking the square shaft. The mounting base has a through hole for the square shaft to pass through. The cover covers the mounting base. The inner curved surface of the cover has a first annular groove and a first notch. The outer curved surface of the mounting base has an integrally formed first snap-fit ​​plate that matches the first annular groove and an integrally formed first snap-fit ​​plate that inserts into the first notch. The side of the first snap-fit ​​plate away from the mounting base is inclined outward.

[0009] The mounting seats within the two handle assemblies are connected by bolt assemblies, and the bolt assemblies are concealed by the cover.

[0010] Preferably, the mounting base has a first deformation groove on its side near the center of the square shaft, and the first deformation groove is directly opposite the first snap-fit ​​plate.

[0011] Preferably, a second annular groove is provided in the curved surface of the protruding post, a second deformation groove is provided in the side of the through hole, and a second snap-fit ​​plate adapted to the second annular groove is integrally formed on the bottom surface of the second deformation groove, and the inner side of the second snap-fit ​​plate is inclined toward the axial direction of the through hole.

[0012] Preferably, only one of the mounting bases is provided with the second deformation groove and the second snap-fit ​​plate, and the other mounting base is provided with a reset assembly. The reset assembly includes a torsion spring, a pressure ring, and a locking ring. The bottom surface of the mounting base is provided with a mounting groove, which is coaxial with the through hole. The locking ring is engaged in the second ring groove, and the pressure ring is pressed into the mounting groove by the locking ring. The torsion spring is pressed into the bottom surface of the mounting groove by the pressure ring.

[0013] The inner curved surface of the pressure ring is integrally formed with a second retaining plate, and the end face of the protrusion is provided with a second notch for accommodating the second retaining plate. The outer curved surface of the pressure ring is integrally formed with a positioning plate, and the curved surface of the mounting groove is provided with a positioning groove. One end of the torsion spring abuts against the edge of the positioning plate, and the other end of the torsion spring extends into the positioning groove.

[0014] Preferably, the bolt assembly includes a bolt and a threaded sleeve that can be threaded together, and the mounting base is provided with a mounting hole for receiving the bolt or the threaded sleeve;

[0015] A square groove is provided in the curved surface of the mounting hole in one of the mounting bases, and the threaded sleeve includes a sleeve and a head, with a square block integrally formed at the lower edge of the head to fit the square groove.

[0016] Preferably, the curved surface of the handle is provided with a threaded groove that communicates with the slot, and a locking pin is threadedly connected in the threaded groove, the locking pin pressing against the square shaft.

[0017] Preferably, the square shaft has a side groove extending in its extension direction on its side surface, and the locking pin is inserted into the side groove.

[0018] This utility model provides an easy-to-assemble bolt-concealed door lock, which has the following advantages:

[0019] This utility model is provided with a cover for shielding the bolt assembly, and the cover is provided with a first annular groove for locking with the mounting base. Workers or users can press the mounting base into the cover by pressing directly, which is convenient and secure.

[0020] This invention features a square block at the head of the threaded sleeve, preventing the sleeve from rotating when two mounting bases are connected by a bolt assembly, thus facilitating installation. Attached Figure Description

[0021] Figure 1 This is an exploded view of this utility model;

[0022] Figure 2 yes Figure 1 Enlarged schematic diagram of the intermediate pressure ring;

[0023] Figure 3 yes Figure 2 An enlarged view of the mounting base located on the upper side;

[0024] Figure 4 yes Figure 3 Another view of the appearance of the mounting bracket;

[0025] Figure 5 yes Figure 1 Enlarged view of point A in the middle;

[0026] Figure 6 yes Figure 1 An enlarged view of the mounting base located on the lower side;

[0027] Figure 7 yes Figure 1 An enlarged schematic diagram of the cover located on the lower side;

[0028] Figure 8 yes Figure 1 A schematic diagram of the Chinese axis from another perspective.

[0029] In the picture:

[0030] 11. Square shaft; 12. Side groove; 21. Handle; 22. Protruding post; 23. Second ring groove; 24. Locking pin; 31. Mounting base; 32. Through hole; 33. First snap-fit ​​plate; 34. First snap-fit ​​plate; 35. First deformation groove; 36. Second deformation groove; 37. Second snap-fit ​​plate; 41. Cover; 42. First ring groove; 43. First notch; 61. Bolt; 62. Screw sleeve; 63. Square block; 71. Torsion spring; 72. Pressure ring; 73. Locking ring; 74. Mounting groove; 75. Second snap-fit ​​plate; 76. Second notch; 77. Positioning plate; 78. Positioning groove; 101. Handle assembly. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Reference Figures 1-8 According to an embodiment of the present invention, an easy-to-assemble bolt concealed door lock includes a square column-shaped shaft 11, and two handle assemblies 101 disposed on both sides of the square shaft 11 and arranged facing each other.

[0036] The handle assembly 101 includes a handle 21, a mounting base 31, and a cover 41.

[0037] Specifically, the handle 21 extends laterally and then bends to form a bent portion. The end of the bent portion is integrally formed with a protrusion 22. The protrusion 22 is provided with a slot for accommodating and locking the square shaft 11. The mounting base 31 is provided with a through hole 32 for the square shaft 11 to pass through. The cover 41 covers the mounting base 31. The inner curved surface of the cover 41 is provided with a first annular groove 42, and the cover 41 is provided with a first notch 43. The outer curved surface of the mounting base 31 is integrally formed with a first snap-fit ​​plate 33 adapted to the first annular groove 42, and the outer curved surface of the mounting base 31 is integrally formed with a first snap-fit ​​plate 34 inserted into the first notch 43. The side of the first snap-fit ​​plate 33 away from the mounting base 31 is inclined outward. The mounting bases 31 in the two handle assemblies 101 are connected by a bolt assembly, and the bolt assembly is covered by the cover 41.

[0038] When installation is required, the two handle assemblies 101 are installed on both sides of the door via the bolt assembly. Then, the user or staff can directly press the mounting base 31 into the cover 41 until the first snap-fit ​​plate 33 snaps into the first annular groove 42, and the end of the first snap-fit ​​plate 33 abuts against the plane of the first annular groove 42. At this time, the installation and locking work between the mounting base 31 and the cover 41 is completed. At this time, the cover 41 can cover the bolt assembly to avoid affecting the aesthetics.

[0039] During the above process, the No. 1 snap-fit ​​plate 33 will undergo deformation and reset. In order to facilitate its deformation and avoid its breakage, the mounting base 31 is provided with a No. 1 deformation groove 35 on the side near the center of the square shaft 11. The No. 1 deformation groove 35 is directly opposite the No. 1 snap-fit ​​plate 33 to create a positional margin for accommodating the deformation of the No. 1 snap-fit ​​plate 33.

[0040] Furthermore, in order to lock the position of the handle 21 relative to the mounting base 31, a second annular groove 23 is provided in the curved surface of the protrusion 22, and a second deformation groove 36 is provided in the side of the through hole 32. A second snap-fit ​​plate 37 adapted to the second annular groove 23 is integrally formed on the bottom surface of the second deformation groove 36. The inner side of the second snap-fit ​​plate 37 is inclined towards the axial direction of the through hole 32, similar to the first snap-fit ​​plate 33. During installation, the operator only needs to press the mounting base 31 relative to the handle 21 to make the second snap-fit ​​plate 37 snap into the second annular groove 23, thereby locking the handle 21 and the mounting base 31 and allowing the handle 21 to rotate relative to the mounting base 31.

[0041] In a second embodiment of the easily assembled bolt-concealed door lock, only one mounting base 31 is provided with the second deformation groove 36 and the second snap-fit ​​plate 37, and the other mounting base 31 is provided with a reset assembly. The reset assembly is used to enable the handle 21 to automatically spring back to its original position after being turned. The reset assembly includes a torsion spring 71, a pressure ring 72 and a locking ring 73. The bottom surface of the mounting base 31 without the second deformation groove 36 and the second snap-fit ​​plate 37 is provided with a mounting groove 74. The mounting groove 74 is coaxial with the through hole 32. The locking ring 73 is engaged in the second ring groove 23, and the pressure ring 72 is pressed into the mounting groove 74 by the locking ring 73. The torsion spring 71 is pressed into the bottom surface of the mounting groove 74 by the pressure ring 72.

[0042] The inner curved surface of the pressure ring 72 is integrally formed with a second retaining plate 75. The end face of the protrusion 22 is provided with a second notch 76 for accommodating the second retaining plate 75. The outer curved surface of the pressure ring 72 is integrally formed with a positioning plate 77. The curved surface of the mounting groove 74 is provided with a positioning groove 78. One end of the torsion spring 71 abuts against the edge of the positioning plate 77, and the other end of the torsion spring 71 extends into the positioning groove 78.

[0043] When any of the handles 21 is moved, the other handle 21 will be rotated via the square shaft 11, and the pressure ring 72 will be rotated via the second clamping plate 75. When the pressure ring 72 rotates, it will cause the torsion spring 71 to tighten or loosen. When the handle 21 is not moved, the torsion spring 71 will cause the handle 21 to reverse until it is reset.

[0044] In this embodiment, the bolt assembly includes a bolt 61 and a threaded sleeve 62 that can be threaded together, and the mounting base 31 is provided with a mounting hole for accommodating the bolt 61 or the threaded sleeve 62;

[0045] To prevent the threaded sleeve 62 from rotating during the process of screwing the bolt 61 into the threaded sleeve 62, a square groove is provided in the curved surface of the mounting hole in one of the mounting bases 31. Figure 3 Not shown in the diagram, the square groove is located in Figure 3 (Lower side of the central groove), the threaded sleeve 62 includes a sleeve and a head. A square block 63 adapted to the square groove is integrally formed at the lower edge of the head. During installation, the head of the threaded sleeve 62 will abut against the wall of the cover 41 so that the square block 63 enters the square groove and prevents the threaded sleeve 62 from rotating.

[0046] In order to lock the handle 21 to the square shaft 11, the curved surface of the handle 21 is provided with a threaded groove that communicates with the slot, and a locking pin 24 is threadedly connected in the threaded groove, and the locking pin 24 presses against the square shaft 11.

[0047] In the second embodiment of the handle 21, in order to provide a side groove 12 extending in the direction of extension on the side of the square shaft 11, the locking pin 24 is inserted into the side groove 12 to improve the stability of the handle 21.

[0048] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A bolt-concealed door lock that is easy to assemble, comprising a square shaft (11) in the shape of a square column, characterized in that: It also includes two handle assemblies (101) located on both sides of the square shaft (11) and facing each other. The handle assembly (101) includes a handle (21), a mounting base (31), and a cover (41). The handle (21) extends laterally and then bends to form a bent part. The end of the bent part is integrally formed with a protrusion (22). The protrusion (22) is provided with a slot for accommodating and locking the square shaft (11). The mounting base (31) is provided with a through hole (32) for the square shaft (11) to pass through. The cover (41) covers the mounting base (31). The inner curved surface of the cover (41) is provided with a first annular groove (42), and the cover (41) is provided with a first notch (43). The outer curved surface of the mounting base (31) is integrally formed with a first snap-fit ​​plate (33) that matches the first annular groove (42), and the outer curved surface of the mounting base (31) is integrally formed with a first snap-fit ​​plate (34) that inserts into the first notch (43). The side of the first snap-fit ​​plate away from the mounting base (31) is inclined outward. The mounting bases (31) within the two handle assemblies (101) are connected by bolt assemblies, and the bolt assemblies are covered by the cover (41).

2. The bolt-concealed door lock according to claim 1, characterized in that: The mounting base (31) has a first-shaped groove (35) on its side near the center of the square shaft (11), and the first-shaped groove (35) is directly opposite the first-shaped snap plate (33).

3. The easily assembled bolt-concealed door lock according to claim 1, characterized in that: The protruding post (22) has a second annular groove (23) inside its curved surface, and the through hole (32) has a second deformation groove (36) inside its side surface. The bottom surface of the second deformation groove (36) is integrally formed with a second snap-fit ​​plate (37) that is adapted to the second annular groove (23). The inner side surface of the second snap-fit ​​plate (37) is inclined toward the axial direction of the through hole (32).

4. The easily assembled bolt-concealed door lock according to claim 3, characterized in that: Only one of the mounting bases (31) is provided with the second deformation groove (36) and the second snap-fit ​​plate (37), and the other mounting base (31) is provided with a reset assembly, which includes a torsion spring (71), a pressure ring (72) and a locking ring (73). The bottom surface of the mounting base (31) is provided with a mounting groove (74), which is coaxial with the through hole (32). The locking ring (73) is snapped into the second ring groove (23), and the pressure ring (72) is pressed into the mounting groove (74) by the locking ring (73). The torsion spring (71) is pressed into the bottom surface of the mounting groove (74) by the pressure ring (72). The inner curved surface of the pressure ring (72) is integrally formed with a second card plate (75), and the end face of the protrusion (22) is provided with a second notch (76) for accommodating the second card plate (75). The outer curved surface of the pressure ring (72) is integrally formed with a positioning plate (77), and the curved surface of the mounting groove (74) is provided with a positioning groove (78). One end of the torsion spring (71) abuts against the edge of the positioning plate (77), and the other end of the torsion spring (71) extends into the positioning groove (78).

5. The easily assembled bolt-concealed door lock according to claim 1, characterized in that: The bolt assembly includes a bolt (61) and a threaded sleeve (62) that can be threaded together, and the mounting base (31) has a mounting hole for receiving the bolt (61) or the threaded sleeve (62). A square groove is provided in the curved surface of the mounting hole in one of the mounting bases (31), and the threaded sleeve (62) includes a sleeve and a head, and a square block (63) adapted to the square groove is integrally formed at the lower edge of the head.

6. The easily assembled bolt-concealed door lock according to claim 1, characterized in that: The handle (21) has a threaded groove in its curved surface that is connected to the slot, and a locking pin (24) is threadedly connected in the threaded groove, the locking pin (24) pressing against the square shaft (11).

7. The easily assembled bolt-concealed door lock according to claim 6, characterized in that: The square shaft (11) has a side groove (12) extending in its direction on its side surface, and the locking pin (24) is inserted into the side groove (12).

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