Door handle capable of preventing bacteria from spreading

Abstract

The utility model belongs to the technical field of handles, and particularly relates to a door handle capable of preventing bacteria from spreading. Comprising a handle assembly which comprises a handle and a handle base, and one end of the handle is rotationally connected to the handle base; the handle driving device is located above the handle assembly; wherein the handle driving device comprises a fixing seat, a driving rod and a front arm support, the driving rod is arranged on the fixing seat in an up-down sliding mode, the front arm support is arranged at the top end of the driving rod, a sliding groove is formed in the handle, a limiting part is arranged at the bottom end of the driving rod, the limiting part is rotationally connected into the sliding groove, and the limiting part slides in the sliding groove; by vertically pressing the forearm support downwards, the driving rod drives the handle to rotate and unlock the door lock, the situation that the hand makes direct contact with the handle, and bacteria are spread from the hand is avoided, vertically downward force exerting can further prevent the arm from inclining and sliding from the forearm support, force exerting is convenient, and the structure is stable.

Description

Technical Field

[0001] The utility model belongs to the technical field of handles, and particularly relates to a door handle for preventing the spread of bacteria. Background Art

[0002] A door handle is a tool for opening and closing a door. Common door handles are contact type. When opening and closing the door, one needs to hold the handle with the hand, and bacteria will stick to the hand. Then, when the hand touches other things or parts of the body such as the eyes and mouth, it is very easy to spread bacteria, causing bacterial infections and affecting physical health. Therefore, a door handle that can avoid the spread of bacteria is needed.

[0003] In the prior art, in order to avoid the spread of bacteria from the door handle, a device containing a disinfectant is set on the door handle. However, the disinfectant needs to be frequently replenished after use, and there are sometimes situations where the replenishment is not timely. Or a device with ultraviolet sterilization is installed, which requires frequent battery replacement and is not environmentally friendly. There is also a direct connection of a forearm support to the door handle. When the forearm presses down the forearm support vertically, when the door handle rotates, the forearm support will rotate accordingly, causing the forearm support to tilt. The forearm placed on the forearm support will tilt or even slip out, which is not convenient for exerting force and has poor stability. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a door handle for preventing the spread of bacteria in view of the above existing technical problems. By pressing the forearm support vertically downward, the driving rod drives the handle to rotate, opening the door lock, avoiding direct contact between the hand and the handle, and preventing the spread of bacteria from the hand. Pressing vertically downward can also prevent the arm from tilting and slipping off the forearm support, facilitating the exertion of force and having a stable structure.

[0005] In view of this, the utility model provides a door handle for preventing the spread of bacteria, including:

[0006] A handle assembly, including a handle and a handle base, one end of the handle is rotatably connected to the handle base;

[0007] A handle driving device, located above the handle assembly;

[0008] Wherein, the handle driving device includes a fixed seat, a driving rod and a forearm support. The driving rod is slidably arranged up and down on the fixed seat. The forearm support is arranged at the top end of the driving rod. A chute is arranged on the handle. A limiting part is arranged at the bottom end of the driving rod. The limiting part is rotatably connected in the chute and slides in the chute.

[0009] In the above solution, further, the driving rod includes:

[0010] A tube body, slidably arranged up and down on the fixed seat;

[0011] A screw rod, connected to the bottom of the forearm support, and the screw rod is inserted into the tube body;

[0012] A limiting nut is rotatably connected to the top end of the pipe body, and the limiting nut is threadedly connected to the rod body.

[0013] In the above solution, further, a return spring is sleeved on the driving rod, and two ends of the return spring respectively abut against the top of the fixed seat and the bottom of the limiting nut.

[0014] In the above solution, further, the handle driving device further includes:

[0015] A guide rod, one end of the guide rod is connected to the bottom of the forearm support, and the other end is slidably arranged up and down on the fixed seat.

[0016] In the above solution, further, a forearm limiting groove is arranged on the forearm support.

[0017] In the above solution, further, the forearm limiting groove is an arc-shaped groove.

[0018] In the above solution, further, an anti-slip sheet is arranged at the bottom of the forearm limiting groove.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. By vertically pressing down the forearm support, the driving rod drives the handle to rotate, opening the door lock, avoiding direct contact between the hand and the handle, causing bacteria to spread from the hand, and the vertical downward force can also prevent the arm from slipping off the forearm support obliquely, facilitating the application of force, and the structure is stable;

[0021] 2. By rotating the limiting nut, the screw rod can move up and down to adjust the length of the driving rod to adapt to people of different heights.

[0022] 3. The forearm limiting groove is used to limit the forearm of a person, accurately position the forearm, and can also prevent the forearm from moving back and forth, improving the stability of the forearm in the forearm limiting groove. Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the utility model;

[0024] Figure 2 is the cross-sectional structural schematic diagram of the driving rod of the utility model.

[0025] The markings in the figure are shown as:

[0026] 1. Handle assembly; 11. Handle; 12. Handle seat; 2. Handle driving device; 21. Fixed seat; 22. Driving rod; 221. Pipe body; 222. Screw rod; 223. Limiting nut; 23. Forearm support; 24. Guide rod; 3. Chute; 4. Limiting part; 5. Return spring; 6. Forearm limiting groove; 7. Anti-slip sheet. Detailed Embodiment

[0027] The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0029] Embodiment 1:

[0030] This embodiment provides a door handle for preventing the spread of bacteria, including:

[0031] The handle assembly 1 includes a handle 11 and a handle base 12, and one end of the handle 11 is rotatably connected to the handle base 12;

[0032] The handle driving device 2 is located above the handle assembly 1;

[0033] Among them, the handle driving device 2 includes a fixed seat 21, a driving rod 22, and a forearm support 23. The driving rod 22 is slidably arranged up and down on the fixed seat 21. The forearm support 23 is arranged at the top of the driving rod 22. A chute 3 is arranged on the handle 11. A limiting portion 4 is arranged at the bottom end of the driving rod 22. The limiting portion 4 is rotatably connected to the chute 3 and slides within the chute 3.

[0034] In this technical solution, the handle base 12 can be fixed to the door panel with screws. The handle 11 is rotatably connected to the handle base 12. The handle 11 is connected to the lock core. When the handle 11 is rotated, it can drive the lock tongue of the lock core to move, thereby opening the door lock. A torsion spring can be arranged between the handle 11 and the lock core so that the handle assembly 1 can automatically reset after rotation.

[0035] The handle driving device 2 is used to drive the handle 11 to rotate, thereby opening the door lock. Among them, the fixed seat 21 can be fixed on the door with screws. A through hole can be vertically provided on the fixed seat 21, and the driving rod 22 slides up and down in the through hole. A guide groove can be provided on the through hole, and a convex portion can be provided on the driving rod 22. The convex portion is arranged in the guide groove to prevent the driving rod 22 from rotating axially, which is not shown in the figure.

[0036] The forearm support 23 is used to place the forearm of a person. The upper surface of the forearm support 23 is horizontal. The forearm support 23 and the driving rod 22 can be threadedly connected. The forearm support 23 can include a rigid support base and an elastic coating layer wrapped on the support base. For example, sponge is wrapped on the support base to play a role of softness and comfort, which is not shown in the figure.

[0037] The chute 3 on the handle 11 can be a strip-shaped groove. The limiting portion 4 can slide in the strip-shaped groove and will not fall out of the chute 3. When the handle 11 is rotated, the limiting portion 4 can also rotate in the chute 3. The chute 3 can also be a strip-shaped hole, and the limiting portion 4 can be a shaft rod. The shaft rod is inserted into the strip-shaped hole so that the shaft rod can slide and rotate in the strip-shaped hole.

[0038] As Figure 1 shown, when the door is in the closed state, place the forearm on the forearm support 23, and apply a downward force vertically with the forearm. The driving rod 22 is forced to slide downward, thereby driving the handle 11 to rotate counterclockwise, and the door lock is opened.

[0039] After the door lock is opened, the handle 11 is reset under the action of the torsion spring. The handle 11 drives the driving rod 22 to slide upward, and the forearm support 23 is reset.

[0040] In the utility model, by vertically pressing down the forearm support 23, the driving rod 22 drives the handle 11 to rotate, opening the door lock, avoiding direct contact between the hand and the handle 11, causing bacteria to spread from the hand, and also having the effects of stable structure and convenient force application. Moreover, applying a vertical downward force can prevent the arm from tilting and slipping off the forearm support 23.

[0041] Embodiment 2:

[0042] This embodiment provides a door handle for preventing bacteria from spreading. In addition to including the technical solutions of the above embodiment, it also has the following technical features.

[0043] The driving rod 22 includes:

[0044] A tube body 221, which is slidably arranged up and down on the fixed seat 21;

[0045] A screw rod 222, which is connected to the bottom of the forearm support 23. The screw rod 222 is inserted into the tube body 221;

[0046] The limiting nut 223 is rotatably connected to the top end of the pipe body 221, and the limiting nut 223 is threadedly connected to the rod body.

[0047] In this technical solution, a first connecting plate can be welded to the bottom of the limiting nut 223, a second connecting plate can be provided at the top end of the pipe body 221, the second connecting plate is sleeved on the pipe body 221, a limiting seat can be welded on the pipe body 221, the limiting seat is located between the first connecting plate and the second connecting plate, and the first connecting plate and the second connecting plate can be tightly connected by using screws, which is convenient for installing and disassembling the limiting nut 223. Therefore, the limiting nut 223 can rotate on the pipe body 221.

[0048] By rotating the limiting nut 223, the screw rod 222 can move up and down, adjusting the length of the driving rod 22 to adapt to people of different heights. For example, when the utility model is used on the door of a personal residence, the driving rod 22 can be adjusted according to the personal height.

[0049] Embodiment 3:

[0050] This embodiment provides a door handle for preventing the spread of bacteria. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0051] A return spring 5 is sleeved on the driving rod 22, and both ends of the return spring 5 respectively abut against the top of the fixed seat 21 and the bottom of the limiting nut 223.

[0052] In this technical solution, the elastic force of the return spring 5 can reset the forearm support 23, preventing the weight of the forearm support 23 and the driving rod 22 from pressing down the handle 11 and causing the handle 11 to not fully reset.

[0053] Embodiment 4:

[0054] This embodiment provides a door handle for preventing the spread of bacteria. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0055] The handle driving device 2 further includes:

[0056] A guide rod 24, one end of the guide rod 24 is connected to the bottom of the forearm support 23, and the other end is slidably arranged up and down on the fixed seat 21.

[0057] In this technical solution, the cross-section of the guide rod 24 can be circular, and the guide rod 24 is used for guiding to ensure that the driving rod 22 can move up and down stably. When the driving rod 22 is a smooth cylindrical structure, the guide rod 24 can also prevent the driving rod 22 and the forearm support 23 from rotating on the fixed seat 21.

[0058] Embodiment 5:

[0059] This embodiment provides a door handle for preventing the spread of bacteria. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0060] A forearm limiting groove 6 is provided on the forearm support 23.

[0061] In this technical solution, blocking portions are provided on both the front side and the rear side of the forearm support 23. The forearm limiting groove 6 is formed between the two blocking portions. The forearm limiting groove 6 is used for limiting the forearm of a person, enabling accurate positioning of the forearm and also preventing the forearm from moving back and forth, thereby improving the stability of the forearm in the forearm limiting groove 6.

[0062] Embodiment 6:

[0063] This embodiment provides a door handle for preventing the spread of bacteria. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0064] The forearm limiting groove 6 is an arc-shaped groove.

[0065] In this technical solution, the arc-shaped groove structure can increase the contact area between the forearm and the forearm limiting groove 6, improving the comfort of placing the forearm in the forearm limiting groove 6.

[0066] Embodiment 7:

[0067] This embodiment provides a door handle for preventing the spread of bacteria. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0068] An anti-slip sheet 7 is provided at the bottom of the forearm limiting groove 6.

[0069] In this technical solution, the anti-slip sheet 7 can be a silicone anti-slip sheet pasted in the forearm limiting groove 6. The anti-slip sheet 7 is used to prevent the forearm from moving left and right, further improving the stability of the forearm in the forearm limiting groove 6.

[0070] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A door handle for preventing the spread of bacteria, characterized in that: include: A handle assembly (1) comprises a handle (11) and a handle seat (12), wherein one end of the handle (11) is rotatably connected to the handle seat (12); A handle driving device (2) is located above the handle assembly (1); The handle driving device (2) comprises a fixed seat (21), a driving rod (22) and a forearm support (23); the driving rod (22) is slidably arranged on the fixed seat (21) up and down; the forearm support (23) is arranged at the top of the driving rod (22); a slide groove (3) is arranged on the handle (11); a limiting part (4) is arranged at the bottom end of the driving rod (22); the limiting part (4) is rotatably connected in the slide groove (3), and the limiting part (4) slides in the slide groove (3).

2. A door handle for preventing the spread of bacteria according to claim 1, characterized in that: The driving rod (22) comprises: The tube body (221) is slidably disposed on the fixing seat (21) up and down; A screw rod (222) is connected to the bottom of the forearm support (23), and the screw rod (222) is inserted into the tube body (221); The limiting nut (223) is rotatably connected to the top end of the tube body (221), and the limiting nut (223) is threadedly connected to the rod body.

3. A door handle for preventing the spread of bacteria according to claim 2, characterized in that: The driving rod (22) is sleeved with a return spring (5), and two ends of the return spring (5) respectively abut against the top of the fixing seat (21) and the bottom of the limiting nut (223).

4. A door handle for preventing the spread of bacteria according to claim 1, characterized in that: The handle driving device (2) further comprises: A guide rod (24) has one end connected to the bottom of the forearm support (23) and the other end slidably disposed on the fixing seat (21).

5. A door handle for preventing the spread of bacteria according to claim 1, characterized in that: The forearm support (23) is provided with a forearm limiting groove (6).

6. A door handle for preventing the spread of bacteria according to claim 5, characterized in that: The forearm limiting groove (6) is an arc-shaped groove.

7. A door handle for preventing the spread of bacteria according to claim 5, characterized in that: An anti-slip sheet (7) is provided at the bottom of the forearm limiting groove (6).

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