Door lock handle assembly

Abstract

The utility model relates to a door lock handle assembly. The door lock handle assembly comprises a pipe fitting, a casting part and a plate part, wherein the casting part and the plate part are matched with a pipe opening of the pipe fitting in shape; the casting part is embedded in a pipe opening in one end of the pipe fitting and fixedly connected with the pipe fitting. A pipe orifice at the other end of the pipe fitting is fixedly connected with the plate; the casting part comprises a cover body and at least one column body which are integrally formed, and the cover body is fixedly connected with a pipe opening in one end of the pipe fitting. The column body vertically penetrates through the surface of the cover body, and the length of the column body is smaller than that of the pipe fitting; and each column body is provided with a door handle mounting hole. The problem that no narrow groove or blind hole exists in a casting part is achieved, the casting difficulty is effectively reduced, and the casting yield is increased; the weight of the handle assembly is effectively reduced, and the material cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to a handle, in particular to a door lock handle assembly. Background Art

[0002] The door lock handle assembly is a handle head structure installed on the door lock for installing the door handle. At present, the handle assembly adopts an integrated design to reduce the production cost of the handle assembly, such as Figure 3 The handle design shown in the figure hollows out the interior of the handle assembly to achieve a weight reduction effect. However, the weight reduction design causes the handle assembly to form a narrow groove structure and a blind hole structure, which leads to new problems:

[0003] 1. It is not conducive to sand cleaning, and the shot blasting-acid soaking-shot blasting cycle process needs to be repeated many times, which increases production costs;

[0004] 2. The narrow slot blind hole structure makes it difficult to dissipate heat, resulting in casting shrinkage defects in the handle assembly;

[0005] 3. The weight of the product after weight reduction design is still very high, up to 410g.

[0006] It can be seen that the existing handle assembly has design defects that lead to high manufacturing costs. Utility Model Content

[0007] Based on this, it is necessary to provide a door lock handle assembly to address the manufacturing cost problem of the handle assembly.

[0008] The utility model provides a door lock handle assembly, comprising a pipe fitting, and a casting and a plate fitting whose shapes match the pipe opening of the pipe fitting; the casting is embedded in the pipe opening at one end of the pipe fitting and is fixedly connected to the pipe fitting; the pipe opening at the other end of the pipe fitting is fixedly connected to the plate fitting;

[0009] The casting comprises an integrally formed cover body and at least one column, wherein the cover body is fixedly connected to a pipe opening at one end of the pipe fitting; the column vertically passes through the surface of the cover body, and the length of the column is less than the length of the pipe fitting; each of the columns is provided with a door handle mounting hole.

[0010] In one embodiment, one end of the column vertically passes through the cover body from the upper surface of the cover body and is flush with the cover opening of the cover body.

[0011] In one embodiment, one end of the column vertically passes through the cover body from the lower surface of the cover body and is flush with the upper surface of the cover body.

[0012] In some embodiments, the casting is welded to one end of the pipe fitting, and the plate is welded to the other end of the pipe fitting.

[0013] In one embodiment, the number of the columns is three, including a first column, a second column and a third column, the first column is arranged in the middle of the cover body; the second column and the third column are respectively arranged on both sides of the first column with the first column as a symmetrical point.

[0014] In one embodiment, the door handle mounting hole of the first column is rectangular, and the door handle mounting hole of the second column and the door handle mounting hole of the third column are both circular.

[0015] In one embodiment, the diameter of the first column is larger than the diameter of the second column and the diameter of the third column.

[0016] In some of the embodiments, the casting further includes an integrally formed tube body, the tube body passes through one side of the cover body from the outer surface of the cover body to one of the columns, and the pipe of the tube body is in communication with a door handle mounting hole of the column.

[0017] In some embodiments, the length of the column is half the length of the tube.

[0018] In some of the embodiments, a recessed portion is provided on one side of the tube.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The handle assembly is divided into a casting, a tube body and a plate body. The three parts are first manufactured separately and then fixedly connected, so that the casting has no narrow grooves and blind holes, effectively reducing the difficulty of casting and improving the casting yield;

[0021] 2. The handle assembly is divided into a casting, a tube body and a plate body, so that standard parts of the tube body and the plate body can be used for manufacturing, and only the casting part can be cast, which effectively reduces the manufacturing cost of the handle assembly;

[0022] 3. The hollow structure of the tube body effectively reduces the weight of the handle assembly and effectively reduces material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of a door lock handle assembly according to an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the exploded structure of a door lock handle assembly according to an embodiment of the present utility model;

[0025] Figure 3 This is a schematic structural diagram of a door lock handle assembly before optimization shown in an embodiment of the utility model;

[0026] Figure 4a This is a schematic structural diagram of a casting body according to an embodiment of the present utility model;

[0027] Figure 4b This is a schematic structural diagram of a casting body according to another embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the side cross-sectional structure of a door lock handle assembly according to an embodiment of the present utility model;

[0029] Figure 6 The present invention is a schematic structural diagram of a pipe fitting according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only."

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] See also Figure 1 and Figure 2 A door lock handle assembly according to an embodiment of the utility model comprises a pipe fitting 1, a casting 2 and a plate 3 adapted to the shape of the pipe opening of the pipe fitting 1; the casting 2 is embedded in the pipe opening at one end of the pipe fitting 1 and is fixedly connected to the pipe fitting 1; the pipe opening at the other end of the pipe fitting 1 is fixedly connected to the plate 3;

[0034] The casting 2 includes an integrally formed cover body 21 and at least one column 22, wherein the cover body 21 is fixedly connected to a pipe opening at one end of the pipe fitting 1; the column 22 vertically passes through the surface of the cover body 21, and the length of the column 22 is less than the length of the pipe fitting 1; each of the columns 22 is provided with a door handle mounting hole 221.

[0035] In this embodiment, the pipe fitting 1, the casting 2 and the plate 3 are prefabricated respectively, and then the three are fixedly connected. Optionally, the casting 2 is welded to one end of the pipe fitting 1, and the plate 3 is welded to the other end of the pipe fitting 1. The pipe fitting 1 can be cut from a standard pipe fitting, and the plate 3 can be cut from a standard plate. The cost of standard parts is low, which effectively reduces the manufacturing cost of the pipe fitting 1 and the plate 3. The casting 2 is not connected to the plate 3, compared with Figure 3 The handle structure greatly increases the internal space of the handle assembly, reduces the material consumption, and thus reduces the production cost.

[0036] The handle assembly is installed on the door lock, and the door handle is installed on the door lock through the door handle installation hole. The handle assembly can be rotated on the door lock, so that the door can be opened or closed by rotating the door handle.

[0037] Alternatively, if Figure 4a As shown, one end of the column 22 vertically passes through the cover body 21 from the upper surface of the cover body 21 and is flush with the cover opening of the cover body 21, so that the cover opening of the cover body 21 is fixedly connected to the pipe fitting 1 upward, so that the handle assembly has no narrow grooves and blind holes.

[0038] Alternatively, if Figure 4b As shown, one end of the column 22 vertically passes through the cover body 21 from the lower surface of the cover body 21 and is flush with the upper surface of the cover body 21, so that the cover opening of the cover body 21 is fixedly connected to the pipe fitting 1, so that the handle assembly has no narrow grooves and blind holes, and the entire surface is flat.

[0039] In some embodiments, Figure 4a or Figure 4b As shown, there are three columns 22, including a first column 22a, a second column 22b and a third column 22c. The first column 22a is arranged in the middle of the cover body 21; the second column 22b and the third column 22c are respectively arranged on both sides of the first column 22a with the first column 22a as a symmetrical point.

[0040] In this embodiment, three columns 22 are used to ensure the stability of the door handle when it is turned.

[0041] Optionally, the door handle mounting hole of the first column 22a is rectangular, the door handle mounting hole of the second column 22b and the door handle mounting hole of the third column 22c are both circular, and the door handle mounting hole of the middle column is rectangular to increase the force when the door handle is turned, making it easier to turn the door handle.

[0042] Alternatively, if Figure 4a or Figure 4b As shown, the diameter of the first column 22a is larger than the diameter of the second column 22b and the diameter of the third column 22c. By increasing the diameter of the first column 22a, the first column 22a can be used as the main force point of the door handle, and the second column 22b and the third column 22c can be used as auxiliary force points, so that the door handle can be easily rotated.

[0043] Alternatively, if Figure 4a As shown, the casting 2 further includes an integrally formed tube body 23, the tube body 23 passes through one side of the cover body 21 from the outer surface of the cover body 21 to one of the columns 22, and the pipe 231 of the tube body 23 is in communication with the door handle mounting hole 221 of the column 22. The tube body 23 is in communication with the column 22 (specifically, the first column 22a), so that a pin or a bolt can be inserted into the tube body 23 to connect the column 22 and the door handle, thereby further stabilizing the position of the door handle on the handle assembly and improving the stability of the door handle in use.

[0044] In some embodiments, Figure 5 As shown, the length of the column 22 is half of the length of the pipe 23. This increases the internal space of the pipe 1, reduces casting materials, and thus reduces production costs.

[0045] In some embodiments, Figure 6 As shown, a concave portion 11 is provided on one side of the pipe 1 to facilitate position limiting when the door handle is turned.

[0046] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A door lock handle assembly, characterized in that: It comprises a pipe fitting and a casting and a plate fitting that are adapted to the shape of the pipe opening of the pipe fitting; the casting is embedded in the pipe opening at one end of the pipe fitting and is fixedly connected to the pipe fitting; the pipe opening at the other end of the pipe fitting is fixedly connected to the plate fitting; The casting comprises an integrally formed cover body and at least one column, wherein the cover body is fixedly connected to a pipe opening at one end of the pipe fitting; the column vertically passes through the surface of the cover body, and the length of the column is less than the length of the pipe fitting; each of the columns is provided with a door handle mounting hole.

2. The door lock handle assembly according to claim 1, characterized in that: One end of the column vertically passes through the cover body from the upper surface of the cover body and is flush with the cover opening of the cover body.

3. The door lock handle assembly according to claim 1, characterized in that: One end of the column vertically passes through the cover body from the lower surface of the cover body and is flush with the upper surface of the cover body.

4. The door lock handle assembly according to any one of claims 1 to 3, characterized in that: The casting is welded to one end of the pipe fitting, and the plate is welded to the other end of the pipe fitting.

5. The door lock handle assembly according to any one of claims 1 to 3, characterized in that: The number of the columns is three, including a first column, a second column and a third column. The first column is arranged in the middle of the cover body; the second column and the third column are respectively arranged on both sides of the first column with the first column as a symmetrical point.

6. The door lock handle assembly according to claim 5, characterized in that: The door handle mounting hole of the first column is rectangular, and the door handle mounting hole of the second column and the door handle mounting hole of the third column are both circular.

7. The door lock handle assembly according to claim 5, characterized in that: The diameter of the first column is larger than the diameter of the second column and the diameter of the third column.

8. The door lock handle assembly according to any one of claims 1 to 3, characterized in that: The casting also includes an integrally formed tube body, which passes through one side of the cover body from the outer surface of the cover body to one of the columns, and a pipe of the tube body is communicated with a door handle mounting hole of the column.

9. The door lock handle assembly according to any one of claims 1 to 3, characterized in that: The length of the column is half of the length of the tube.

10. The door lock handle assembly according to any one of claims 1 to 3, characterized in that: One side of the pipe is provided with an inner concave portion.

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