Handle with safety protection function

Abstract

The lever handle with the safety protection function comprises a handle body, a base, a rotating shaft and a locking piece, a clamping part is arranged on the base, and a shifting hole and a containing groove are formed in the handle body; or, the handle is provided with a clamping part, and the base is provided with a shifting hole and a containing groove; the locking piece is located in the containing groove, and when the handle is in a locking state, the locking piece protrudes out of the containing groove and forms a buckling relation with the clamping part. The locking piece can be driven to retract into the containing groove by extending or placing a tool into the shifting hole, and then the buckling relation between the locking piece and the clamping part is relieved, so that unlocking is achieved. Compared with the scheme that an unlocking operation piece is directly exposed out of the surface of the handle in the prior art, the handle needs to be unlocked through tool operation, the unlocking operation difficulty is increased to a certain degree, and the situation that a user unlocks the handle accidentally or a young child unlocks the handle due to curiosity can be avoided. Therefore, according to the lever handle, the safety protection performance is improved, and safety accidents can be effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the field of door and window accessories, and in particular relates to a handle with a safety protection function. Background Art

[0002] The handle with self-locking function cannot be rotated when locked, and the doors and windows cannot be opened at this time. Its main purpose is to prevent young children from opening windows by themselves without the supervision of their guardians to avoid safety accidents. The locking handles on the market now, especially the locking baseless handles, have the operating parts of the unlocking handles directly exposed on the surface of the handles, so that the handles can be unlocked directly by hand without the help of tools. With the improvement of the learning and hands-on ability of young children nowadays, when they see the guardian unlocking the handle to open the window, it is easy for them to learn how to unlock the handle. Driven by curiosity, young children may unlock and open the window.

[0003] It can be seen that the current handle structure, which can be unlocked directly by hand without the aid of tools, has relatively low protection and safety performance. Utility Model Content

[0004] The purpose of the utility model is to provide a handle with a safety protection function, in which an operating piece for unlocking the handle is installed inside the handle structure, so that the handle can be unlocked with the help of a tool, thereby improving the protection safety performance of the handle to avoid safety accidents.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a handle with a safety protection function, comprising a handle, a base, a rotating shaft and a locking member, wherein one end of the rotating shaft is fixedly connected to the handle, and the other end is rotatably inserted into the base; a clamping portion is provided at an end of the base close to the handle, and a toggle hole and a receiving groove are provided at an end of the handle close to the base, or a toggle hole and a receiving groove are provided at an end of the base close to the handle, and a clamping portion is provided at an end of the handle close to the base; wherein the position of the receiving groove corresponds to the position of the clamping portion, and the locking member is located in the receiving groove;

[0006] When the handle is in a locked state, the locking piece protrudes out of the receiving groove to form a snap-fit ​​relationship with the locking portion; by extending or inserting a tool into the shifting hole, the locking piece can be driven to retract into the receiving groove, thereby releasing the snap-fit ​​relationship with the locking portion to achieve unlocking.

[0007] In some preferred embodiments, the base is provided with a screw hole, the base is fixed to the door or window by screws, the clamping portion is a wrench hole of the screw head, and when the handle is in a locked state, the locking piece protrudes out of the accommodating groove and is inserted into the wrench hole.

[0008] Furthermore, the tool is a toggle tool, and a force-bearing portion serving as a fulcrum of the toggle tool is provided on the locking member, and the force-bearing portion is a hole, an open groove or a step.

[0009] In some preferred embodiments, the clamping portion is a clamping hole, a clamping groove or a protrusion arranged on the top of the base or the end of the handle.

[0010] Furthermore, the number of the clamping parts is two or more, and the two or more clamping parts are distributed at intervals along the circumference of the base or the handle end.

[0011] Furthermore, the other end of the shifting hole is communicated with the accommodating groove, so that the shifting tool can extend from the shifting hole into the accommodating groove.

[0012] Furthermore, the toggle hole is located above the accommodating groove, the tool is a magnetic part, the locking part is a magnetic material or a metal material with magnetic conductivity, and the magnetic part is inserted into the toggle hole. The magnetic force generated by the magnetic part can suck the locking part upward and then retract it into the accommodating groove to achieve unlocking.

[0013] Furthermore, a first compression spring is embedded in the receiving groove, and the first compression spring is sandwiched between the top wall of the receiving groove and the top end of the locking member.

[0014] In some preferred embodiments, the handle of the utility model also includes a rotating wheel, which is fixedly embedded in the handle, and the rotating shaft is fixedly embedded in the rotating wheel. The periphery of the rotating wheel is provided with an avoidance gap corresponding to the position of the locking member, and the locking member is located in the avoidance gap; when the handle is in an unlocked state, the locking member can rotate with the rotating wheel, and when the handle is in a locked state, the rotating wheel cannot rotate due to the obstruction of the locking member.

[0015] In some preferred embodiments, the handle of the utility model further comprises an elastic positioning member having a guide hole and an elastic resistance portion, the locking member is vertically inserted into the guide hole, and the elastic resistance portion presses against the outer side surface of the locking member.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The handle provided by the utility model sets the locking part in the receiving groove inside the handle or the base, and the unlocking tool needs to be inserted or placed in the toggle hole to operate the locking part to unlock the handle. Compared with the solution in the prior art that the unlocking operating part is directly exposed on the handle surface, the handle of the utility model needs to be unlocked by tool operation, which increases the difficulty of unlocking to a certain extent, and can prevent users from accidentally unlocking or young children from unlocking due to curiosity. It can be seen that the handle of the utility model improves the safety protection performance and can effectively prevent the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the exploded structure of a handle with a safety protection function provided in the first embodiment of the utility model;

[0019] Figure 2 yes Figure 1 a longitudinal section view of the handle shown;

[0020] Figure 3 yes Figure 1 A schematic diagram of the structure of the handle in the handle shown;

[0021] Figure 4 yes Figure 1 A schematic diagram of the structure of the base in the handle shown;

[0022] Figure 5 yes Figure 1 A schematic diagram of the structure of the locking member in the handle shown;

[0023] Figure 6 yes Figure 1 A schematic diagram of the structure of the elastic positioning member of the locking member in the handle shown;

[0024] Figure 7 This is a schematic diagram of a handle with a safety protection function provided in the second embodiment of the present utility model when it is in an unlocked state;

[0025] Figure 8 This is a schematic diagram of the exploded structure of a handle with a safety protection function provided in the fourth embodiment of the present utility model;

[0026] Fig. 9 yes Figure 8 The handle is shown in the locked state with the magnetic part removed;

[0027] Fig.10 yes Figure 8 The handle is shown in the unlocked state after being placed into the magnetic part;

[0028] Fig.11 yes Figure 8 Schematic diagram of the structure of the locking member in the handle shown. DETAILED DESCRIPTION

[0029] 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 in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] Embodiment 1:

[0032] Reference Figure 1 and Figure 2 The present embodiment provides a handle with a safety protection function, including a handle 1, a base 2, a rotating shaft 3 and a locking member 4. One end of the rotating shaft 3 is fixedly connected to the handle 1, and the other end is rotatably arranged in the base 2 for connecting with a transmission component to realize the unlocking or locking operation of doors and windows.

[0033] Reference Figure 3 and Figure 4 The end of the base 2 near the handle 1 is provided with a clamping portion 21, and the end of the handle 1 near the base 2 is provided with a toggle hole 11 and a receiving groove 12, one end of the toggle hole 11 is connected to the outside; the position of the receiving groove 12 corresponds to the position of the clamping portion 21, and the locking member 4 is located in the receiving groove 12, and the bottom of the receiving groove 12 has a lower notch. When the handle is in a locked state, the locking member 4 protrudes out of the lower notch to form a buckle relationship with the clamping portion 21. By inserting a toggle tool (which can be a small columnar object such as a common toothpick, pen tip, mobile phone card pin, etc. in life) into the toggle hole 11, the locking member 4 can be driven to retract upward into the receiving groove 12, and then the buckle relationship with the clamping portion 21 is released to achieve unlocking.

[0034] Reference Figure 5The lock member 4 is provided with a force-bearing portion 41 as a force point for the toggle tool and a buckle portion 42 for engaging the clamping portion 21. The force-bearing portion 41 may be a hole, an open groove or a step for the toggle tool to toggle the lock member upward. In this embodiment, the force-bearing portion 41 is an annular step provided on the outer periphery of the lock member 4.

[0035] The clamping portion 21 may be a clamping hole, a clamping groove or a protrusion disposed on the top of the base 2. In this embodiment, Figure 3 As shown, the clamping portion 21 is a clamping hole arranged on the top of the base 2, and the number of the clamping holes is two or more, and the two or more clamping holes are spaced apart along the circumference of the base 2. Figure 3 It is shown that two locking holes are provided on the base 2, and the two locking holes are symmetrically distributed around the center of the base. Through this design, the handle can realize the locking function regardless of whether the door or window is in the open or closed state.

[0036] The other end of the shifting hole 11 is communicated with the receiving groove 12 so that the shifting tool can extend from the shifting hole into the receiving groove 12 .

[0037] Furthermore, the handle of this embodiment further comprises a rotating wheel 6, which is fixedly embedded in the handle 1, and the rotating shaft 3 is fixedly embedded in the rotating wheel 6. An escape notch 61 is provided at the periphery of the rotating wheel 6 corresponding to the position of the locking member 4, and the locking member 4 is located in the escape notch 61. When the handle is in an unlocked state, the locking member 4 can rotate with the rotating wheel 6, and when the handle is in a locked state, the rotating wheel 6 cannot rotate under the obstruction of the locking member 4 because the locking member 4 is snap-connected with the snap hole at this time.

[0038] Furthermore, the handle of this embodiment further comprises an elastic positioning member 7, referring to Figure 6 The latch 7 is preferably pressed against the locking cam 72 so that the latch 4 can be easily locked with the locking cam 73. When the latch is in the state of being unlocked, the locking cam 73 will be easily broken.

[0039] Furthermore, the handle of this embodiment is further provided with an elastic resistance component between the base 2 and the rotating wheel 6, the elastic resistance component including a second compression spring 8 and a ball 9, and the base 2 is further provided with a longitudinal hole 22 for embedding the second compression spring 8 and the ball 9, wherein the ball 9 is superimposed on the second compression spring 8 for sliding contact with the bottom surface of the rotating wheel 6. By designing the elastic resistance component, the base 2 can apply a certain friction force to the handle 1, so that no matter the handle is rotated to a certain angle and stops, the handle 1 can be maintained at the angle, which is helpful for the user to identify the current state of the door and window (i.e., the door and window are unlocked or locked).

[0040] In summary, the handle provided in this embodiment has the locking member 4 disposed inside the handle 1, and the unlocking tool needs to be inserted into the toggle hole 11 to operate the locking member 4 to unlock the handle. Compared with the solution in the prior art that the unlocking operating member is directly exposed on the handle surface, the handle in this embodiment needs to be unlocked by a tool, which increases the difficulty of unlocking to a certain extent, and can prevent users from accidentally unlocking the handle or young children from unlocking the handle out of curiosity. It can be seen that the handle in this embodiment improves the safety protection performance and can effectively prevent the occurrence of safety accidents.

[0041] Embodiment 2:

[0042] This embodiment provides a second handle with a safety protection function. Figure 7 The handle comprises a handle 1, a base 2, a rotating shaft 3 and a locking member 4. The structural scheme of the handle is substantially the same as that of the embodiment, except that:

[0043] The base 2 is provided with a screw hole, and the base 2 is fixed to the door or window by means of screws d. The clamping portion 21 is a wrench hole of the head of the screw d. When the handle is in a locked state, the locking member 4 protrudes out of the lower notch of the accommodating groove 12 and is inserted into the wrench hole.

[0044] In this embodiment, the wrench hole on the head of the connecting piece (ie, the screw d) required for installing the handle is used as the clamping portion 21 , which can reduce the number of openings on the base 2 and ensure the structural strength of the base 2 .

[0045] Embodiment three:

[0046] This embodiment provides a second handle with a safety protection function, which includes a handle, a base, a rotating shaft, a locking member and a third compression spring.

[0047] The base of this embodiment is provided with a toggle hole and a receiving groove at the end near the handle, and one end of the toggle hole is connected to the outside; the handle is provided with a clamping portion at the end near the base, and the position of the receiving groove corresponds to the position of the clamping portion, and the locking piece is located in the receiving groove, and the top of the receiving groove is provided with an upper notch, and a third compression spring is sandwiched between the bottom wall of the receiving groove and the locking piece. When the handle is in a locked state, the locking piece protrudes upward from the upper notch under the elastic force of the third compression spring to form a clamping relationship with the clamping portion; when unlocking is required, a toggle tool can be inserted into the toggle hole, and the locking piece can be pushed downward to overcome the elastic force of the third compression spring. When the locking piece is completely retracted downward into the receiving groove, the clamping relationship with the clamping portion can be released to achieve unlocking.

[0048] The handle provided in this embodiment has a toggle hole and a receiving groove on the base, and the locking member is disposed in the receiving groove of the base. The unlocking tool needs to be inserted into the toggle hole to operate the locking member to unlock the handle, and the same technical effect as that of the first embodiment can be achieved. In addition, compared with the first embodiment, machining or forming the toggle hole and the receiving groove on the base is more convenient in terms of manufacturing process than machining or forming the toggle hole and the receiving groove on the handle.

[0049] Embodiment 4:

[0050] This embodiment provides a third handle with a safety protection function. Figures 8 to 10 The handle comprises a handle 1, a base 2, a rotating shaft 3 and a locking member 4'. The structural scheme of the handle is substantially the same as that of the embodiment, except that:

[0051] A first compression spring 5 is also embedded in the accommodating groove 12 of the present embodiment. The first compression spring 5 is sandwiched between the top wall of the accommodating groove 12 and the top of the locking member 4. By providing the first compression spring 5, the locking member 4 can be tightened so that the locking member 4 can be firmly snapped into the snap hole at the top of the base 2 when the handle is in the locked state to maintain a stable locked state.

[0052] The handle of this embodiment also includes a magnetic member a and a decorative cover b. The toggle hole 11 on the handle 1 is located above the receiving groove 12. The locking member 4' is a magnetic material or a metal material with magnetic conductivity. The magnetic member 12 is inserted into the toggle hole 11. The magnetic force generated by the magnetic member 12 can suck the locking member 4' upward and then retract it into the receiving groove 12 to achieve unlocking. When the magnetic member a is removed, the locking member 4' can be clamped into the clamping portion 21 (i.e., the clamping hole) under the elastic force of the first compression spring 5 to automatically achieve locking. The decorative cover b can not only improve the aesthetic appearance of the handle, but also block the toggle hole 11 to play a role in waterproofing and dustproofing.

[0053] On the other hand, since there is no need to manually pull out the locking member 4' with a tool, the locking member 4' of this embodiment is simplified in structure. Fig.11In this embodiment, no force-bearing portion needs to be provided on the locking member 4'.

[0054] It can be seen that the magnetic part of this embodiment is the unlocking tool of the handle. Compared with the first embodiment, the unlocking and locking operations of this embodiment no longer require the use of tools to manually pull out the locking part. Instead, the unlocking and locking operations of the handle can be achieved by only inserting or removing the magnetic part a. The operation is simple and convenient, and at the same time, the purpose of improving the safety protection performance can be achieved.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A handle with a safety protection function, comprising a handle, a base and a rotating shaft, wherein one end of the rotating shaft is fixedly connected to the handle, and the other end is rotatably arranged in the base; characterized in that: It also includes a locking member, wherein the end of the base close to the handle is provided with a clamping portion, and the end of the handle close to the base is provided with a toggle hole and a receiving groove, or the end of the base close to the handle is provided with a toggle hole and a receiving groove, and the end of the handle close to the base is provided with a clamping portion; wherein the position of the receiving groove corresponds to the position of the clamping portion, and the locking member is located in the receiving groove; When the handle is in a locked state, the locking piece protrudes out of the receiving groove to form a snap-fit ​​relationship with the clamping portion; by extending or inserting a tool into the shifting hole, the locking piece is driven to retract into the receiving groove, thereby releasing the snap-fit ​​relationship with the clamping portion to achieve unlocking.

2. The handle according to claim 1, characterized in that: The base is provided with a screw hole, and the base is fixed to the door and window by screws. The clamping part is a wrench hole of the screw head. When the handle is in a locked state, the locking piece protrudes out of the accommodating groove and is inserted into the wrench hole.

3. The handle according to claim 1, characterized in that: The tool is a toggle tool, and a force-bearing portion serving as a force point of the toggle tool is provided on the locking member, and the force-bearing portion is a hole, an open groove or a step.

4. The handle according to claim 1, characterized in that: The clamping portion is a clamping hole, a clamping groove or a protrusion arranged on the top of the base or the end of the handle.

5. The handle according to claim 4, characterized in that: The number of the clamping parts is two or more, and the two or more clamping parts are distributed at intervals along the circumference of the base or the end of the handle.

6. The handle according to claim 3, characterized in that: The other end of the shifting hole is communicated with the accommodating groove, so that the shifting tool extends from the shifting hole into the accommodating groove.

7. The handle according to claim 1, characterized in that: The toggle hole is located above the receiving groove, the tool is a magnetic piece, the locking piece is a magnetic material or a metal material with magnetic conductivity, and the magnetic piece is inserted into the toggle hole. The magnetic force generated by the magnetic piece can suck the locking piece upward and then retract it into the receiving groove to achieve unlocking.

8. The handle according to claim 7, characterized in that: A first compression spring is also embedded in the receiving groove, and the first compression spring is sandwiched between the top wall of the receiving groove and the top end of the locking member.

9. The handle according to claim 1, characterized in that: It also includes a rotating wheel, which is fixedly embedded in the handle, and the rotating shaft is fixedly embedded in the rotating wheel. An avoidance gap is provided at the periphery of the rotating wheel corresponding to the position of the locking member, and the locking member is located in the avoidance gap; when the handle is in an unlocked state, the locking member can rotate with the rotating wheel, and when the handle is in a locked state, the rotating wheel cannot rotate due to the obstruction of the locking member.

10. The handle according to claim 1, characterized in that: It also includes an elastic positioning member, which has a guide hole and an elastic resistance portion. The locking member is vertically inserted into the guide hole, and the elastic resistance portion presses the outer side surface of the locking member.

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