A kind of hand
By using a double-layer handle structure and material differentiation design, the problems of traditional handles being easily deformed, lightweight, and having a poor feel are solved, achieving a high-strength, low-cost handle design that meets environmentally friendly production requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGMEN MINGSUO HARDWARE PRODUCTS CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional handle structures are prone to deformation, lightweight, have poor feel, and are expensive, making it difficult to meet the requirements of environmentally friendly production.
It adopts a double-layer structure design, with the inner shell and outer shell welded together to form the handle shell. The inner shell is used to enhance the support. The outer shell and inner shell are made of different materials to reduce costs. The inner shell can be filled with metal scrap or counterweight materials to increase weight and strength.
It improves the anti-collision performance and feel of the handle, reduces the probability of deformation, lowers costs, and meets environmental protection production requirements.
Smart Images
Figure CN224432218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window hardware accessories, and in particular to a handle. Background Technology
[0002] Traditional handles for door locks, doors, and windows are generally solid structures, and are mainly made of materials such as copper and zinc alloys. They are expensive and consume a lot of raw materials, which does not conform to the low-carbon and environmentally friendly production concepts advocated by the state or the world.
[0003] Chinese Patent Publication No. CN211286988U, published on August 18, 2020, discloses a reinforced stainless steel handle structure, which includes an upper handle shell and a lower handle shell connected as one piece. A reinforcing plate corresponding to the shape of the upper and lower handle shells is provided between the upper and lower handle shells, and the reinforcing plate is welded to the upper and lower handle shells as one piece. The end of the reinforcing plate is connected to the end of the handle head. Because the handle is a shell structure with a relatively thin wall thickness (if it were too thick, it could not be drawn into shape), and the reinforcing plate only provides support at the joint between the upper and lower handle shells, without significantly reinforcing other parts of the shell structure, the handle is prone to denting and deformation after impact. This is especially problematic when the door does not have a doorstop for fixation, as the handle with this shell structure will dent and deform upon impact with the wall when the door opens at a large angle. Furthermore, the reinforcing plate is a single piece, lightweight, and cannot significantly increase the weight of the handle, resulting in poor tactile feedback when the handle is pressed down / rebounded. Additionally, the reinforcing plate is difficult to position inside the handle shell, making processing challenging.
[0004] Of course, there are also some handles on the market that are simply welded together from the upper and lower shells, which are lighter and have a worse feel. Utility Model Content
[0005] The purpose of this utility model is to provide a handle with a reasonable structure, a large-area double-layer structure, high strength, and thickness.
[0006] The purpose of this utility model is achieved as follows:
[0007] A handle includes a handle shell formed by welding together an upper handle shell and a lower handle shell. An inner shell is provided inside the handle shell. The outer wall of the inner shell is close to and fixed to the inner wall of the handle shell. The two ends of the inner shell extend to the two ends inside the handle shell.
[0008] The present invention can be further improved in the following ways.
[0009] As a further embodiment, the inner shell comprises an upper inner shell and a lower inner shell, which are respectively embedded within the upper and lower handle outer shells. The upper and lower inner shells can be welded to the upper and lower handle outer shells respectively (in this case, the end face of the half inner shell should be slightly lower than or level with the end face of the half inner shell to avoid protrusion and affecting subsequent merging, welding, and other processing), or the upper and lower inner shells can be clamped or welded to the handle outer shell after welding.
[0010] As a further option, the upper inner shell and the lower inner shell are attached close to or welded to each other on opposite sides.
[0011] As a further embodiment, both the outer and inner shells of the handle are L-shaped, with the outer end of the long arm section of the handle outer shell closed and the outer end of the short arm section of the handle outer shell open.
[0012] As a further embodiment, a paddle insertion portion is formed between the outer end of the short arm section of the handle housing and the corresponding end of the inner housing. A limiting portion is simultaneously formed at the end of the inner housing at the paddle insertion portion to limit the length of the paddle insertion.
[0013] As a further embodiment, the outer side of the long arm section of the handle housing is provided with a shaped surface, and the inner shell extends at least to the inner side of the outermost convex part of the shaped surface. Since the outer side of the handle and the most protruding part are most susceptible to impact, the inner shell needs to extend at least to the inner wall of that position to thicken the impact-prone area and enhance its impact resistance.
[0014] As a further embodiment, the corner position of the inner shell is aligned with the corner position of the handle outer shell, and the length L2 of the long arm section of the inner shell is 1-0.8 times the length L1 of the inner cavity of the long arm section of the handle outer shell. When the end of the long arm section of the outer shell has a narrowing structure, the impact resistance is relatively good due to the small span of the suspended space inside the outer shell. Therefore, the inner shell does not necessarily need to extend to the end inside the outer shell.
[0015] As a further solution, a filler is fixedly provided inside the inner shell and / or between the outer shell and the inner shell of the handle to further meet the overall weight requirements of the handle. Moreover, the filler can be metal shavings generated from metal processing, pressed and molded; or it can even be some materials that meet environmental protection (environmental hygiene) requirements as filler and encapsulated in the handle to achieve counterweight.
[0016] As a further solution, the upper handle shell and the lower handle shell are respectively formed by sheet metal stamping, and their opposite surfaces are flat, so that the two shells can be easily aligned, which facilitates welding and ensures the consistency of the shape of each product.
[0017] As a further option, the wall thickness D2 of the inner shell is greater than the wall thickness D1 of the outer shell of the handle. Since the outer shell is generally made of high-end materials (such as stainless steel, copper, etc.), it mainly serves a decorative and durable function, and its price is generally relatively high. Therefore, when its internal support is reliable, thinner materials should be used as much as possible. The material requirements for the inner shell are less stringent, and it mainly serves a structural support and counterweight function. Therefore, selecting thicker materials can improve the counterweight and support capacity. Moreover, inexpensive sheet metal (such as iron plate) can be selected for processing, ultimately reducing the cost of the handle.
[0018] The beneficial effects of this utility model are as follows:
[0019] (1) The handle of this utility model consists of a handle shell and an inner shell. The inner shell is close to the inner wall of the outer shell and provides reliable support for the wall of the outer shell, thereby improving the anti-collision performance of the handle shell and greatly reducing the probability of impact dents. At the same time, it increases the overall weight and improves the feel when turning.
[0020] (2) The outer shell and inner shell of the handle of this utility model can be formed by different materials. The outer shell is mainly made of materials that are close to the current height handles, while the inner shell is mainly made to improve the structural strength of the heavy-duty structure. The range of materials can be wide, and materials with low bottom price can be selected to replace them, making the handle more cost-effective. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of an embodiment of the present invention.
[0022] Figure 2 This is an exploded structural diagram of the handle of this utility model before molding.
[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the lower handle outer shell and the lower inner shell after they are installed.
[0024] Figure 4 yes Figure 3 Front view structural diagram.
[0025] In the diagram: 1 is the handle housing, 11 is the upper handle housing, 12 is the lower handle housing, 13 is the lever insertion part, and 14 is the flat surface;
[0026] 2 represents the inner shell, 21 represents the upper inner shell, and 22 represents the lower inner shell. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0028] See Figures 1 to 4As shown, a handle includes a handle shell 1 formed by welding together an upper handle shell 11 and a lower handle shell 12. An inner shell 2 is provided inside the handle shell 1. The outer wall of the inner shell 2 is close to and fixed to the inner wall of the handle shell 1. The two ends of the inner shell 2 extend to the two ends inside the handle shell 1.
[0029] The inner shell 2 includes an upper inner shell 21 and a lower inner shell 22, which are respectively embedded in the upper handle outer shell 11 and the lower handle outer shell 12.
[0030] The upper inner shell 21 and the lower inner shell 22 are attached or welded to each other on opposite sides.
[0031] Both the outer shell 1 and the inner shell 2 of the handle are L-shaped, and the outer end of the long arm section of the handle shell 1 is closed (see...). Figure 1 As shown at point A), the outer end of the short arm section of the handle housing 1 is open (see...). Figure 1 (As shown at point B in the middle).
[0032] The outer end of the short arm section of the handle housing 1 is spaced apart from the corresponding end of the inner housing 2 to form a pry bar insertion part 13.
[0033] The outer side of the long arm section of the handle shell 1 is provided with a shaped surface, and the inner shell 2 extends at least to the inner side of the outermost convex part C of the shaped surface.
[0034] The corner position of the inner shell 2 is fitted with the inner corner position of the handle outer shell 1. The length L2 of the long arm section of the inner shell 2 is 1-0.8 times the length L1 of the inner cavity of the long arm section of the handle outer shell 1, so as to ensure that the main stress points of the handle are double-thickened and improve the service life.
[0035] The upper handle shell 11 and the lower handle shell 12 are respectively formed by sheet metal stamping, and their opposite surfaces are planes 14.
[0036] The wall thickness D2 of the inner shell 2 is greater than the wall thickness D1 of the outer shell 1 of the handle.
[0037] The upper handle shell 11 and the lower handle shell 12 can be formed from sheet metal with good rust resistance, such as stainless steel or copper. The inner shell can be made of iron or lower-grade stainless steel.
[0038] Furthermore, a filler (not shown in the figure) is fixedly provided inside the inner shell 2 and / or between the handle outer shell 1 and the inner shell 2. Taking the filling inside the inner shell 2 as an example, the filler can be metal scrap generated during the processing of the handle or its accessories, which can be molded and then placed inside the inner shell 2; alternatively, the filler can be a low-cost counterweight metal material; or, the filler includes a sealing container and metal shavings (which can be metal dust, burrs, edge cuts, etc.) or building materials or waste (sand, concrete, dust, etc.), with the building materials or waste sealed inside the sealing container. (The above figures are not shown.)
[0039] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. A handle, comprising a handle shell (1) formed by welding together an upper handle shell (11) and a lower handle shell (12), characterized in that, The handle housing (1) has an inner shell (2) inside. The outer wall of the inner shell (2) is close to and fixed to the inner wall of the handle housing (1). The two ends of the inner shell (2) extend to the two ends inside the handle housing (1).
2. The handle of claim 1 wherein, The inner shell (2) includes an upper inner shell (21) and a lower inner shell (22), which are respectively embedded in the upper handle shell (11) and the lower handle shell (12).
3. The handle of claim 2 wherein, The upper inner shell (21) and the lower inner shell (22) are attached or welded to each other on opposite sides.
4. The handle of claim 1 wherein, Both the outer shell (1) and the inner shell (2) of the handle are L-shaped. The outer end of the long arm section of the handle shell (1) is closed, and the outer end of the short arm section of the handle shell (1) is open.
5. The handle of claim 1 wherein, The outer end of the short arm section of the handle housing (1) is spaced apart from the corresponding end of the inner housing (2) to form a pry bar insertion part (13).
6. The handle of claim 1 wherein, The outer side of the long arm section of the handle shell (1) is provided with a shaped surface, and the inner shell (2) extends at least to the inner side of the outermost convex part (C) of the shaped surface.
7. The handle of claim 1 wherein, The corner position of the inner shell (2) is in contact with the inner corner position of the handle shell (1), and the length L2 of the long arm section of the inner shell (2) is 1-0.8 times the length L1 of the inner cavity of the long arm section of the handle shell (1).
8. The handle of claim 1 wherein, The inner shell (2) and / or the handle outer shell (1) and the inner shell (2) are also fixedly provided with filler.
9. The handle of claim 1 wherein, The upper handle shell (11) and the lower handle shell (12) are respectively formed by sheet metal stamping, and their opposite surfaces are flat (14).
10. The handle of claim 1 wherein, The wall thickness D2 of the inner shell (2) is greater than the wall thickness D1 of the outer shell (1) of the handle.