Novel internally-locked door handle with external unlocking function

Abstract

The utility model relates to the field of door handles, and particularly discloses a novel internally-locked door handle with an external unlocking function. By arranging the sliding block, the insertion rod, the clamping hole and the push rod, when a user needs to lock the door handle in a door, the push block can be pushed to drive the sliding block to slide, the sliding block further drives the insertion rod to slide, the insertion rod is inserted into the clamping hole of the mounting base, and at the moment, the inner handle is limited by the insertion rod and the mounting base and cannot rotate; when a user mistakenly locks the door handle in a room, an external person can insert a tool into an open hole to push a push rod, so that the push rod abuts against the interior of a sliding block to drive the sliding block to slide, the sliding block drives an inserting rod to move, and the door handle is locked. When the insertion rod is separated from the clamping hole, the inner handle and the outer handle can rotate, and an external user can rotate the outer handle to open the door.

Description

Technical Field

[0001] The utility model belongs to the technical field of door handles, and in particular relates to a novel inner locking door handle with an outer unlocking function. Background Art

[0002] The door handle is an important structure for closing and opening the door. The door handle is generally provided with an inner handle and an outer handle. When the inner handle and the outer handle are rotated, the square iron will be driven to rotate, and the rotating square iron will open the door lock through the base.

[0003] In the Chinese patent with the publication number CN215056137U, a door handle is mentioned, including a handle and a base, one end of the handle is provided with a rotating shaft, the rotating shaft is rotatably connected to the base, the base is provided with a cavity, the cavity is provided with a spring and a push rod, the outer ring of the shaft is provided with a special-shaped block, the special-shaped block is provided with a number of slots, and the push rod is inserted into the bottom of the slot under the action of the spring. Under normal circumstances, the position of the shaft is limited by the push rod and will not rotate. If we find that the direction of the handle is installed incorrectly, we can directly turn the handle with force, and the special-shaped block will overcome the resistance of the push rod and move out from the bottom of the slot. Then we can freely turn the handle and adjust the position of the handle until it is in another slot on the special-shaped block, and then continue to turn the handle with force until the handle is adjusted to the appropriate position.

[0004] During the application process, the applicant discovered that the above application had defects during use. During use, if two handles, inside and outside, are provided for the door handle, the two handles will rotate simultaneously when the door lock is opened, and the user cannot lock the handle inside the door. If the door handle uses a conventional door handle locking structure on the market, when the user accidentally locks the door handle inside the door, the person cannot unlock the accidentally locked door handle from the outside, which leads to safety hazards in use. Utility Model Content

[0005] The purpose of the utility model is to provide a new type of inner locking door handle with an outer unlocking function to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A novel inner locking door handle with outer unlocking function, comprising:

[0008] An inner handle, wherein a slider is slidably connected inside the inner handle, a plug rod is clamped on a side wall of the slider, a slide groove is provided on the side wall of the inner handle, and a push block located inside the slide groove is inserted on the side wall of the slider;

[0009] A mounting base, the mounting base is fixedly mounted on the door, and a clamping hole is provided on a side wall of the mounting base;

[0010] The outer handle has a square iron inserted at the end thereof, an end of the square iron away from the outer handle is inserted inside the inner handle, and a push rod is axially inserted between the outer handle and the middle of the square iron.

[0011] Preferably, the end of the push rod passes through the square iron, extends to the interior of the slider and abuts against the inner wall of the slider.

[0012] Preferably, a plurality of mounting holes are provided on the surface of the sliding block, and a spring and a ball are provided inside the mounting holes. The ball is provided at the upper end of the spring, and the ball abuts against the inner wall of the inner handle.

[0013] Preferably, a rectangular vertical groove and a semi-cylindrical horizontal groove are formed on the side wall of the sliding block, the insert rod is arranged inside the horizontal groove, a clamping block is fixedly connected to the insert rod, and the clamping block is clamped in the vertical groove.

[0014] Preferably, an outer wall of the outer handle is provided with an opening coaxially arranged with the push rod.

[0015] Preferably, a push plate is axially inserted between the outer handle and the middle of the square iron, the end of the push plate passes through the square iron, extends to the inside of the slider and abuts against the inner wall of the slider, a plurality of insertion holes are provided on the surface of the push plate, and a sliding hole is provided at the bottom of the outer handle.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model provides a slider, an insertion rod, a card hole and a push rod, when a user needs to lock the door handle inside the door, the push block can be pushed to drive the slider to slide, and the slider further drives the insertion rod to slide, so that the insertion rod is inserted into the card hole of the mounting base. At this time, the inner handle is restricted by the insertion rod and the mounting base and cannot be rotated, and the inner handle restricts the rotation of the outer handle through the square iron. At this time, both the inner and outer handles cannot be rotated, and the door handle is locked. When the user mistakenly locks the door handle inside the room and does not know how to open the door handle, an outsider can use a tool to insert the inside of the opening to push the push rod, so that the push rod abuts against the inside of the slider to drive the slider to slide, and the sliding slider drives the insertion rod to move, and the insertion rod is disengaged from the card hole. At this time, both the inner and outer handles can be rotated, and the outside user can turn the outer handle to open the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 The overall structure of the utility model is shown in FIG. Figure 3 ;

[0021] Figure 4 The overall structure of the utility model is shown in FIG. Figure 4 ;

[0022] Figure 5 This is a schematic diagram of the overall structure of the push plate sliding hole type of the utility model;

[0023] In the figure: 1. inner handle; 2. slider; 3. plug rod; 4. slide groove; 5. push block; 6. mounting base; 7. clamping hole; 8. outer handle; 81. slide hole; 9. square iron; 91. push plate; 92. plug hole; 10. push rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] Embodiment 1:

[0026] See also Figure 1 - Figure 4 As shown, a new type of inner locking door handle with outer unlocking function comprises:

[0027] An inner handle 1, wherein a slider 2 is slidably connected inside the inner handle 1, a plug rod 3 is clamped on the side wall of the slider 2, a rectangular vertical groove and a semi-cylindrical horizontal groove are provided on the side wall of the slider 2, the plug rod 3 is arranged inside the horizontal groove, a clamping block is fixedly connected to the plug rod 3, and the clamping block is clamped in the vertical groove, a sliding groove 4 is provided on the side wall of the inner handle 1, and a push block 5 located inside the sliding groove 4 is inserted on the side wall of the slider 2;

[0028] The mounting base 6 is fixedly mounted on the door, and the side wall of the mounting base 6 is provided with a clamping hole 7. The mounting base 6 adopts a separate structure, and a rebound torsion spring and a positioning accessory are integrated inside. The rebound torsion spring and the positioning accessory adopt conventional door handle accessories. Since the rebound torsion spring and the positioning accessory are arranged inside the mounting base 6, after the mounting base 6 is installed on the door, a decorative cover can be clamped on the mounting base 6. A magnet is arranged at the bottom of the decorative cover. After the mounting base 6 is installed on the door, it is only necessary to bring the decorative cover close to the mounting base 6 and rotate it to the corresponding hole position, and the decorative cover will automatically fit with the mounting base 6, so as to achieve the effect of easy installation, neat appearance and no screw leakage, and a neat appearance, and the rebound torsion spring can provide a stable and reliable elastic force for the inner handle 1;

[0029] An outer handle 8, wherein a square iron 9 is inserted at the end of the outer handle 8, and the end of the square iron 9 away from the outer handle 8 is inserted inside the inner handle 1, and a push rod 10 is axially inserted in the middle of the outer handle 8 and the square iron 9, and the end of the push rod 10 passes through the square iron 9 and extends to the inside of the slider 2 and abuts against the inner wall of the slider 2, and an opening coaxially arranged with the push rod 10 is opened on the outer wall of the outer handle 8.

[0030] A second mounting base is provided at the end of the outer handle 8, and the second mounting base is connected to the outer handle 8. The second mounting base and the mounting base 6 both include a rebound torsion spring, which means that the door handle has two rebound torsion spring structures, which is different from the common handle structure on the market that only includes one rebound torsion spring. It can ensure that the handle rebounds into place when it is pressed down, thereby avoiding the problem of the handle drooping and not rebounding after long-term use.

[0031] As can be seen from the above, when the user inside the room needs to lock the door handle, the push block 5 can be slid to drive the slider 2 to slide, and the sliding slider 2 drives the insertion rod 3 to slide and be inserted into the card hole 7. At this time, the mounting base 6 limits the rotation of the insertion rod 3 through the card hole 7, thereby limiting the rotation of the slider 2 and the inner handle 1. The inner handle 1 limits the rotation of the outer handle 8 through the square iron 9. At this time, both the inner handle 1 and the outer handle 8 cannot rotate, and the door handle is in a locked state. When the user needs to open the locked door handle, a tool can be inserted into the opening. The tool will resist the push rod 10 and drive the push rod 10 to slide. The sliding push rod 10 abuts against the end of the slider 2 and drives the slider 2 to move. The displaced slider 2 will drive the insertion rod 3 to disengage from the card hole 7. At this time, there is no restriction of the insertion rod 3 and the mounting base 6, and both the inner handle 1 and the outer handle 8 can rotate and open the door handle.

[0032] In order to increase the friction between the slider 2 and the inner handle 1 and prevent the slider 2 from sliding randomly inside the inner handle 1, a plurality of mounting holes are opened on the surface of the slider 2, and a spring and a ball are arranged inside the mounting holes. The ball is arranged at the upper end of the spring and abuts against the inner wall of the inner handle 1.

[0033] The external structural parts of the door handle can be made of all-copper material, which is different from the zinc alloy and aluminum alloy door handles on the market, and is convenient for subsequent electroplating and surface color treatment.

[0034] Positioning nails can be added to the mounting base 6, and the positioning nails pass through the mounting base 6 and are inserted into the inside of the door panel. During installation, they are tightened front and back, and the common screw fixing method on the market is abandoned. This avoids the problem of the handle drooping and being unable to be locked or unlocked due to loose screws to a certain extent, and optimizes the base fixing method on the market.

[0035] The mounting base 6 and the insertion rod 3 are both made of metal, which has higher strength and durability. Different from the common combination of metal and plastic on the market, it can effectively extend the use time and can also reduce the risk of breakage of the insertion rod 3 due to violent use to a certain extent.

[0036] Embodiment 2:

[0037] The technical features of this embodiment that are different from those of the first embodiment are as follows:

[0038] Reference Figure 5 As shown, a push plate (91) is axially inserted between the outer handle (8) and the middle part of the square iron (9), the end of the push plate (91) passes through the square iron (9) and extends to the inside of the slider (2) and abuts against the inner wall of the slider (2), a plurality of insertion holes (92) are provided on the surface of the push plate (91), and a sliding hole (81) is provided at the bottom of the outer handle (8).

[0039] The user can insert the end of the tool into the socket 92, and then push the tool to slide inside the sliding hole 81. The push plate 91 drives the slider 2 to slide, thereby opening the locked door handle from the outside. Since the sliding hole 81 is set at the bottom of the outer handle 8, it can effectively increase the overall aesthetics of the door handle.

[0040] The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0041] In the description of the present utility model, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0045] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A new type of internal locking door handle with external unlocking function, characterized in that: include: An inner handle (1), wherein a slider (2) is slidably connected inside the inner handle, a plug rod (3) is clamped on the side wall of the slider (2), a slide groove (4) is formed on the side wall of the inner handle (1), and a push block (5) located inside the slide groove (4) is inserted into the side wall of the slider (2); A mounting base (6), wherein the mounting base (6) is fixedly mounted on the door, and a clamping hole (7) is provided on a side wall of the mounting base (6); An outer handle (8), wherein a square iron (9) is inserted at the end of the outer handle (8), and an end of the square iron (9) away from the outer handle (8) is inserted into the interior of the inner handle (1).

2. A novel internal locking door handle with external unlocking function according to claim 1, characterized in that: A push rod (10) is axially inserted in the middle of the outer handle (8) and the square iron (9), and the end of the push rod (10) passes through the square iron (9) and extends to the inside of the slider (2) and abuts against the inner wall of the slider (2).

3. A novel internal locking door handle with external unlocking function according to claim 2, characterized in that: A plurality of mounting holes are provided on the surface of the sliding block (2), a spring and a ball are arranged inside the mounting hole, the ball is arranged at the upper end of the spring, and the ball abuts against the inner wall of the inner handle (1).

4. The novel internal locking door handle with external unlocking function according to claim 3 is characterized in that: The side wall of the slider (2) is provided with a rectangular vertical groove and a semi-cylindrical horizontal groove, the insertion rod (3) is arranged inside the horizontal groove, and a clamping block is fixedly connected to the insertion rod (3), and the clamping block is clamped in the vertical groove.

5. The novel internal locking door handle with external unlocking function according to claim 4, characterized in that: The outer wall of the outer handle (8) is provided with an opening coaxially arranged with the push rod (10).

6. The novel internal locking door handle with external unlocking function according to claim 1, characterized in that: A push plate (91) is axially inserted between the outer handle (8) and the middle part of the square iron (9), the end of the push plate (91) passes through the square iron (9) and extends to the inside of the slider (2) and abuts against the inner wall of the slider (2), a plurality of insertion holes (92) are provided on the surface of the push plate (91), and a sliding hole (81) is provided at the bottom of the outer handle (8).

Images