Lobby door handle convenient to replace

Abstract

The lobby door handle convenient to replace comprises two key groove modules and an insertion module, supporting plates are fixedly installed on the sides, close to each other, of the two key groove modules, through holes are formed in one sides of the key groove modules, sliding grooves are formed in the inner walls of the bottoms of the through holes, sliding blocks are installed in the sliding grooves in a sliding mode, and the insertion module is inserted into the sliding blocks. One end of the sliding block extends into the sliding groove, the other end of the sliding block extends into the through hole, fixing grooves are formed in the two sides of the insertion module, fixing rods are installed in the fixing grooves in a sliding mode, one end of each fixing rod extends into the corresponding fixing groove, and the other end of each fixing rod extends into the corresponding through hole; the end, extending into the through hole, of the sliding block is fixedly connected with the bottom of a fixing rod. According to the lobby door handle fixing technology, the requirements for workers and the operation environment are not high, open fire operation is not needed, related measure cost is saved, economical efficiency is good, in addition, later replacement is convenient, and other parts such as a door frame cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of door handles, in particular to a lobby door handle that is easy to replace. Background Technique

[0002] The main function of a lobby door handle is to open and close the door, so it needs to be easy to disassemble and install: The design of the lobby door handle should consider easy disassembly and installation. Usually, the screws are hidden under the decorative cover. You can gently pry it open with a knife or a coin to see the screws, and then rotate the screws counterclockwise to remove the inner and outer handles and the fixing parts. Universality and compatibility: Choosing a universal door handle can ensure that it is suitable for a variety of door thicknesses and door types, reducing installation difficulties caused by mismatches. For example, some door handles are designed to be adjustable left and right to meet the needs of different opening directions. Durability and safety: The lobby door handle should be made of high-quality materials, such as stainless steel, to ensure durability and safety. The door handle made of stainless steel has the characteristics of anti-prying and durability, and is suitable for use in high-traffic areas. Aesthetics and coordination: The design of the door handle should be coordinated with the overall style of the lobby to enhance the overall aesthetics. Choosing a door handle that matches the existing door lock or an upgraded model can ensure a satisfactory installation effect. Functionality and practicality: The lobby door handle should have basic functionality, such as smooth opening and closing operations and stable fixing performance. During the installation process, it is necessary to test opening and closing multiple times to ensure the flexibility and stability of the handle.

[0003] However, when the existing door handles are in use, there are still certain problems:

[0004] It has relatively high requirements for operators and requires certain welding experience to ensure the firmness and beauty of welding. The popularity is not high. It has relatively high requirements for the environment because it involves open flame operations and requires additional safety measures, resulting in increased costs. The door handle is not convenient to replace; because the door handle is used frequently, it will wear out. After being used for a period of time, it may affect the aesthetics and needs to be replaced. However, the door handle fixed by welding can only be replaced by cutting or other methods, which is not only inconvenient but also easy to damage the door frame.

[0005] In view of the above problems, an innovative design is carried out on the basis of the original door handle. Content of the Utility Model

[0006] The purpose of the utility model is to provide a lobby door handle that is easy to replace, so as to solve the problem of replacement mentioned in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical solutions: A lobby door handle that is easy to replace, including two keyway modules and an insertion module. On one side of each of the two keyway modules that are close to each other, a support plate is fixedly installed. On one side of each keyway module, a through hole is provided. On the bottom inner wall of the through hole, a sliding groove is provided. A sliding block is slidably installed in the sliding groove. One end of the sliding block extends into the sliding groove, and the other end of the sliding block extends into the through hole. On both sides of the insertion module, fixing grooves are provided. A fixing rod is slidably installed in the fixing groove. One end of the fixing rod extends into the fixing groove, and the other end of the fixing rod extends into the through hole. The end of the sliding block that extends into the through hole is fixedly connected to the bottom of the fixing rod;

[0008] One end of a short rod is fixedly installed at the top of the fixing rod. The other end of the short rod extends to be rotatably installed with a first rotating shaft. One end of a connecting rod is rotatably installed on the first rotating shaft. The other end of the connecting rod is rotatably installed with a second rotating shaft;

[0009] On the top inner wall of the through hole, an opening is provided. A pressing rod is slidably installed in the opening. One end of the pressing rod extends into the through hole, and the other end of the pressing rod extends outside the through hole. One end of the pressing rod that extends into the through hole is fixedly installed with a cross bar. The bottom of the cross bar is rotatably connected to the second rotating shaft;

[0010] On the top inner wall of the through hole, a sliding hole is provided. On the top of the cross bar, a groove is provided. A sliding rod is slidably installed in the groove. One end of the sliding rod extends into the groove, and the other end of the sliding rod passes through the sliding hole and extends outside the through hole;

[0011] On one side of the sliding rod, a clamping groove is provided. On one side inner wall of the sliding hole, a clamping rod is fixedly installed.

[0012] Preferably, the top of the support plate is in contact with the bottom of the insertion module.

[0013] Adopting the above technical solution, the insertion module is the door handle and can drive the door to open and close.

[0014] Preferably, one end of a first spring is fixedly installed on one side of the sliding block. The other end of the first spring is fixedly connected to one side inner wall of the sliding groove.

[0015] Adopting the above technical solution, the first spring is used to drive the moved sliding block to reset.

[0016] Preferably, the pressing rod is located on the top inner wall of the through hole close to one side inner wall of the insertion module.

[0017] Adopting the above technical solution, the pressing rod is used to drive the fixing rod to disengage from the fixing groove.

[0018] Preferably, one end of a second spring is fixedly installed on one side of the sliding rod. The other end of the second spring is fixedly connected to one side inner wall of the groove.

[0019] With the above technical solution, the second spring is used to drive the reset of the moved sliding rod.

[0020] Preferably, the card slot is located on one side of the sliding rod close to the clamping rod, and the clamping rod is adapted to the card slot.

[0021] With the above technical solution, the clamping rod is used to fix the moved sliding rod.

[0022] Compared with the prior art, the beneficial effects of the present utility model are:

[0023] This kind of fixing technology for the lobby door handle has low requirements for workers and the operating environment, does not require open fire operation, saves relevant measures costs, and has good economy. In addition, it is convenient to replace later and will not cause damage to other components such as door frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view schematic diagram of the structure of the present utility model;

[0025] Figure 2 It is a schematic diagram of part A of the structure of the present utility model;

[0026] Figure 3 It is a schematic diagram of part B of the structure of the present utility model.

[0027] In the figure: 1, keyway module; 2, pallet; 3, insertion module; 4, through hole; 5, sliding groove; 6, sliding block; 7, fixing groove; 8, fixing rod; 9, short rod; 10, connecting rod; 11, opening; 12, pressing rod; 13, cross bar; 14, channel; 15, sliding hole; 16, sliding rod; 17, card slot; 18, clamping rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1 - 3, the present utility model provides a technical solution: a lobby door handle that is easy to replace, including two keyway modules 1 and an insertion module 3. On one side of each of the two keyway modules 1 that are close to each other, a support plate 2 is fixedly installed. On one side of each keyway module 1, a through hole 4 is provided. On the bottom inner wall of the through hole 4, a sliding groove 5 is provided. A sliding block 6 is slidably installed in the sliding groove 5. One end of the sliding block 6 extends into the sliding groove 5, and the other end of the sliding block 6 extends into the through hole 4. On both sides of the insertion module 3, fixing grooves 7 are provided. A fixing rod 8 is slidably installed in the fixing grooves 7. One end of the fixing rod 8 extends into the fixing grooves 7, and the other end of the fixing rod 8 extends into the through hole 4. The end of the sliding block 6 that extends into the through hole 4 is fixedly connected to the bottom of the fixing rod 8.

[0030] Combined with Figures 1 - 2 As shown, one end of a short rod 9 is fixedly installed at the top of the fixing rod 8. The other end of the short rod 9 extends to be rotatably installed with a first rotating shaft. One end of a connecting rod 10 is rotatably installed on the first rotating shaft. The other end of the connecting rod 10 is rotatably installed with a second rotating shaft. An opening 11 is provided on the top inner wall of the through hole 4. A pressing rod 12 is slidably installed in the opening 11. One end of the pressing rod 12 extends into the through hole 4, and the other end of the pressing rod 12 extends outside the through hole 4. One end of the pressing rod 12 that extends into the through hole 4 is fixedly installed with a cross bar 13. The bottom of the cross bar 13 is rotatably connected to the second rotating shaft.

[0031] Combined with Figures 1 - 3 As shown, a sliding hole 15 is provided on the top inner wall of the through hole 4. A channel 14 is provided on the top of the cross bar 13. A sliding rod 16 is slidably installed in the channel 14. One end of the sliding rod 16 extends into the channel 14, and the other end of the sliding rod 16 passes through the sliding hole 15 and extends outside the through hole 4. A clamping groove 17 is provided on one side of the sliding rod 16. A clamping rod 18 is fixedly installed on one side inner wall of the sliding hole 15.

[0032] In the present utility model, when replacement is needed, first move the pressing rod 12 downward. The pressing rod 12 drives the cross bar 13 to move downward. The cross bar 13 drives the second rotating shaft to move downward. The second rotating shaft drives the connecting rod 10 to rotate. The connecting rod 10 drives the first rotating shaft to rotate and move horizontally. The first rotating shaft drives the fixing rod 8 to move horizontally. The fixing rod 8 disengages from the fixing groove 7. At the same time, the cross bar 13 drives the channel 14 to move downward. The channel 14 drives the sliding rod 16 to move downward. The sliding rod 16 drives the clamping groove 17 to move downward. The second spring drives the sliding rod 16 to move horizontally. The sliding rod 16 drives the clamping groove 17 to be sleeved on the clamping rod 18, thereby achieving the purpose of replacement.

[0033] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lobby door handle that is easy to replace, comprising two keyway modules (1) and an insertion module (3), characterized in that: A support plate (2) is fixedly installed on one side of the two keyway modules (1) close to each other, a through hole (4) is provided on one side of the keyway module (1), a sliding groove (5) is provided on the inner wall of the bottom of the through hole (4), a sliding block (6) is slidably installed in the sliding groove (5), one end of the sliding block (6) extends into the sliding groove (5), and the other end of the sliding block (6) extends into the through hole (4), a fixing groove (7) is provided on both sides of the insertion module (3), a fixing rod (8) is slidably installed in the fixing groove (7), one end of the fixing rod (8) extends into the fixing groove (7), and the other end of the fixing rod (8) extends into the through hole (4), and the end of the sliding block (6) extending into the through hole (4) is fixedly connected to the bottom of the fixing rod (8); One end of a short rod (9) is fixedly mounted on the top of the fixed rod (8), the other end of the short rod (9) extends to a first rotating shaft rotatably mounted thereon, one end of a connecting rod (10) is rotatably mounted on the first rotating shaft, and the other end of the connecting rod (10) is rotatably mounted thereon; An opening (11) is provided on the inner wall of the top of the through hole (4), a pressure rod (12) is slidably installed in the opening (11), one end of the pressure rod (12) extends into the through hole (4), and the other end of the pressure rod (12) extends out of the through hole (4), a cross rod (13) is fixedly installed on the end of the pressure rod (12) extending into the through hole (4), and the bottom of the cross rod (13) is rotatably connected to the second rotating shaft; A sliding hole (15) is provided on the top inner wall of the through hole (4), a groove (14) is provided on the top of the cross bar (13), a sliding rod (16) is slidably installed in the groove (14), one end of the sliding rod (16) extends into the groove (14), and the other end of the sliding rod (16) passes through the sliding hole (15) and extends to the outside of the through hole (4); A clamping groove (17) is provided on one side of the sliding rod (16), and a clamping rod (18) is fixedly mounted on an inner wall of one side of the sliding hole (15).

2. The easily replaceable lobby door handle according to claim 1, characterized in that: The top of the support plate (2) contacts the bottom of the insertion module (3).

3. The easily replaceable lobby door handle according to claim 1, characterized in that: One end of a first spring is fixedly mounted on one side of the sliding block (6), and the other end of the first spring is fixedly connected to an inner wall of one side of the sliding groove (5).

4. The easily replaceable lobby door handle according to claim 1, characterized in that: The pressure rod (12) is located on the inner wall of one side of the top of the through hole (4) close to the insertion module (3).

5. The easily replaceable lobby door handle according to claim 1, characterized in that: One end of a second spring is fixedly mounted on one side of the sliding rod (16), and the other end of the second spring is fixedly connected to an inner wall of one side of the groove (14).

6. The easily replaceable lobby door handle according to claim 1, characterized in that: The clamping slot (17) is located on a side of the sliding rod (16) close to the clamping rod (18), and the clamping rod (18) is matched with the clamping slot (17).

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