Metal pulling assisting device
The CPCI puller is manufactured using a process combining 316 stainless steel powder metallurgy and die-cast zinc, which solves the problems of easy aging and structural loosening of existing pullers in harsh environments, achieves high-precision and high-stability plugging and unplugging operations, and extends the service life of the equipment.
Patent Information
- Application Number
- CN202422812519.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-19
AI Technical Summary
The materials and processes of existing CPCI pull-out aids are prone to aging and deformation in high temperature, humid and corrosive environments, making plugging and unplugging operations difficult and unable to meet high precision and high surface quality requirements. In addition, the structure becomes loose and severely worn during frequent use, affecting equipment stability.
The handle and buttons are made of 316 stainless steel powder metallurgy, combined with a die-cast zinc base. A high-strength structure is formed through pressing, sintering and precision assembly. Sandblasting and polishing are performed to ensure that all parts fit tightly together. Zinc raw materials are injected using a die-casting machine to form mating components.
Maintain excellent mechanical properties and corrosion resistance in harsh environments, significantly extend service life, avoid structural loosening, and improve the overall performance and stability of the equipment.
Smart Images

Figure CN223419475U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of CPCI equipment production, in particular to a metal extraction aid. Background Art
[0002] The CPCI bus is an open, international technical standard developed and supported by the PCI Industrial Computer Manufacturer Group (PICMG), the organization that manufactures PCI bus-based industrial computers. CPCI removal aids, as auxiliary tools in CPCI systems, facilitate the insertion and removal of plug-in boards within the CPCI chassis, improving system maintainability and reliability. CPCI removal aids on the market are generally made of plastic and die-cast zinc, a combination that, to a certain extent, meets the basic requirements for insertion and removal operations. However, with the improvement of industrial standards and the increasing expectations of users for the durability and reliability of equipment, the materials and processes of existing pullers have gradually become insufficient. Plastic handles and buttons are prone to aging, deformation, or even damage after long-term use or exposure to harsh environments (such as high temperature, humidity, and corrosive environments), resulting in difficulty or failure in plugging and unplugging operations. Traditional processing technologies such as injection molding and die-casting have limitations in manufacturing accuracy and surface quality, and are unable to meet the high precision and high surface quality requirements of modern electronic equipment. Due to the limitations of materials and processes, existing pullers may experience structural loosening, increased wear, and other problems when subjected to large plugging and unplugging forces or frequent use, affecting the overall performance and stability of the equipment. To solve the above problems, a metal puller is proposed. Utility Model Content
[0003] In response to the above technical problems, the utility model provides a metal extraction aid, characterized in that it includes a handle, a spring, a button shaft, a handle shaft, a base, and a button. The base is provided with a handle via the handle shaft, the handle is provided with a button via the button shaft, a spring is provided between the button and the handle, an interface for plugging and unplugging a wiring harness is provided on the base, a positioning rod is provided on the base, an opening is provided in the middle of the base, the handle shaft is located in the opening in the middle of the base, the lower end of the handle is provided with an opening, the handle shaft is located in the opening at the lower end of the handle, the upper end of the handle is provided with an opening, and the button shaft is located in the opening at the upper end of the handle;
[0004] Furthermore, the bottom surface of the handle has a serrated anti-slip layer, the button shaft is located in the opening in the middle of the button, the front end of the button has a protrusion for limiting the wiring harness, the upper end of the handle has a slot, the lower surface of the button has a slot, and the spring is located between the slot on the upper end of the handle and the slot on the lower surface of the button;
[0005] Furthermore, the handle and the button are made of stainless steel powder metallurgy, and the base is made of die-cast zinc raw material.
[0006] Beneficial effects of the utility model:
[0007] The utility model fills the mold with 316 stainless steel powder to ensure uniform filling without gaps.
[0008] A pressing operation is performed to form the powder into the rough shapes of the handle and button in a mold. The pressed parts are then sintered, where high temperatures create metallurgical bonding between the powder particles, forming dense, high-strength metal parts. A die-casting machine is then used to inject the die-cast zinc raw material into the corresponding mold, forming a die-cast zinc component that mates with the 316 stainless steel part. The sintered 316 stainless steel handle and button are then precisely assembled with the die-cast zinc component to ensure a tight and stable fit between the parts. The surface of the extractor is sandblasted and polished to improve its appearance and feel. During use, the wiring harness is inserted into the wiring harness plug-in port on the base. Grasp the handle and press the button. The button is lifted upward to insert the wiring harness into place. The button is released, and a bump on the front of the button secures the wiring harness in place. By using 316 stainless steel as the primary material, the extractor maintains excellent mechanical properties and corrosion resistance even under long-term use or harsh environments, significantly extending its service life. The extractor can stably transmit force during the insertion and extraction process, preventing structural loosening or damage, and improving the overall performance and stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a schematic diagram of the overall structure of a metal pull-out aid of the present utility model;
[0010] Figure 2 This is a rear view of the overall structure of a metal pull-out aid of the present invention;
[0011] Figure 3 This is a side view of the overall structure of a metal pull-out aid of the present invention;
[0012] Figure 4 This is a schematic diagram of the key structure of a metal extraction aid of the present utility model;
[0013] Figure 5 This is a schematic diagram of the spring structure of a metal pull-out aid of the present invention;
[0014] Figure 6 This is a schematic diagram of the base structure of a metal puller according to the present invention;
[0015] Figure 7 This is a schematic diagram of the handle structure of a metal extraction aid of the present invention;
[0016] As shown in the figure: 1 handle, 2 spring, 3 button axis, 4 handle axis, 5 base, 6 button. DETAILED DESCRIPTION
[0017] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.
[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0020] Example 1
[0021] The utility model provides a metal extraction aid, characterized in that it includes a handle 1, a spring 2, a button shaft 3, a handle shaft 4, a base 5, and a button 6. The handle 1 is arranged on the base 5 through the handle shaft 4, the button 6 is arranged on the handle 1 through the button shaft 3, a spring 2 is arranged between the button 6 and the handle 1, an interface for plugging and unplugging a wiring harness is provided on the base 5, a positioning rod is provided on the base 5, an opening is provided in the middle of the base 5, the handle shaft 4 is located in the opening in the middle of the base 5, the lower end of the handle 1 has an opening, the handle shaft 4 is located in the opening at the lower end of the handle 1, the upper end of the handle 1 has an opening, and the button shaft 3 is located in the opening at the upper end of the handle 1;
[0022] Furthermore, the bottom surface of the handle 1 has a serrated anti-slip layer, the button shaft 3 is located in the opening in the middle of the button 6, the front end of the button 6 has a protrusion for limiting the wiring harness, the upper end of the handle 1 has a slot, the lower surface of the button 6 has a slot, and the spring 2 is located between the slot on the upper end of the handle 1 and the slot on the lower surface of the button 6;
[0023] Furthermore, the handle 1 and the button 6 are made of stainless steel powder metallurgy, and the base 5 is made of die-cast zinc raw material.
[0024] Example 2
[0025] During production, fill the mold with 316 stainless steel powder to ensure that it is filled evenly without gaps.
[0026] A pressing operation is performed to preliminarily form the powder into the rough shape of the handle 1 and the button in the mold, and the pressed parts are sintered to cause metallurgical bonding between the powder particles through high temperature to form dense and high-strength metal parts. A die-casting machine is used to inject the die-cast zinc raw material into the corresponding mold to form a die-cast zinc component that matches the 316 stainless steel part. The sintered 316 stainless steel handle 1 and button are precisely assembled with the die-cast zinc component to ensure that the fit between the parts is tight and stable. The surface of the puller is sandblasted and polished to improve its appearance quality and hand comfort. When in use, the wiring harness is inserted into the wiring harness plug-in interface of the base 5, the handle 1 is grasped and the button 6 is pressed. The button 6 is lifted upward to plug the wiring harness into place, and the button 6 is lowered. The protrusion at the front end of the button 6 limits the wiring harness.
[0027] The above shows and describes the basic principles, main features and advantages of the present invention. The various components mentioned in the present invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A metal extraction aid, characterized in that: It includes a handle, a spring, a button shaft, a handle shaft, a base, and a button. The handle is set on the base through the handle shaft, the button is set on the handle through the button shaft, a spring is set between the button and the handle, an interface for plugging and unplugging the wiring harness is provided on the base, a positioning rod is provided on the base, an opening is provided in the middle of the base, the handle shaft is located in the opening in the middle of the base, the lower end of the handle has an opening, the handle shaft is located in the opening at the lower end of the handle, the upper end of the handle has an opening, and the button shaft is located in the opening at the upper end of the handle.
2. A metal extraction aid according to claim 1, characterized in that: The bottom surface of the handle has a serrated anti-slip layer, the button shaft is located in the opening in the middle of the button, the front end of the button has a protrusion for limiting the wiring harness, the upper end of the handle has a slot, the lower surface of the button has a slot, and the spring is located between the slot on the upper end of the handle and the slot on the lower surface of the button.
3. A metal extraction aid according to claim 1, characterized in that: The handle and the button are made of stainless steel powder metallurgy, and the base is made of die-cast zinc raw material.