Total flat bar economy link lock

Abstract

The utility model relates to a kind of total assembly flat bar type economic type connecting rod lock, it is designed to solve the technical problem of the corresponding component structure design of existing similar products is poor, leading to production installation is more inconvenient, the higher production cost technology.The fixed buckle of the connecting rod lock is introduced into the rod slot by the roller groove one side opening of the roller on the two sides of flat bar type connecting rod, and the roller on the two sides of flat bar type connecting rod is slid into and limited in the locking groove by the roller groove one side of fixed buckle;Its gist is that the guide piece includes guide seat, first guide shell, second guide shell, flat bar type connecting rod passes through the connecting rod hole formed by first, second guide shell, the shell formed by first, second guide shell is inserted and fixed in the one side opening of guide seat with interference, flat bar type connecting rod is through first, second guide shell and passes through guide seat, the mounting hole of guide seat is symmetrically arranged in the outwardly extending edge ear of the two sides of guide seat one side opening, the seat mouth of guide seat one side of edge ear is bevel mouth, and guide seat is "J" character shape one side opening.

Description

Technical Field

[0001] This utility model relates to a linkage lock, specifically an economical, flat-bar type linkage lock. Background Technology

[0002] A linkage lock is a type of lock that uses the rotation of the lock cylinder to move the linkage and top and bottom rods up and down, thereby locking the cabinet door. Linkage locks typically require the installation of guide components, positioning components, and other locking accessories on the door panel, involving multiple assembly steps to achieve the locking action of the cabinet lock body. To facilitate the movement and operation of the linkage, some linkage locks have locking rod rollers on the linkage; for example, Chinese patent application number 202222013269.6, authorized announcement date 2023.01.13, utility model name "composite reinforced linkage mechanism". However, the guide components in the above-mentioned products and similar products are generally made of single materials such as plastic, aluminum alloy, cast stainless steel, and zinc alloy, resulting in inconvenient production and installation, and high production costs; similarly, the fixing buckles are also generally made of cast stainless steel or zinc alloy, which also presents the problems of inconvenient production and installation and high production costs. Summary of the Invention

[0003] To overcome the aforementioned shortcomings, the purpose of this utility model is to provide an economical, flat-bar type linkage lock that solves the technical problem of inadequate component structure design in existing similar products, which leads to inconvenient production and installation, and high production costs. This objective is achieved through the following technical solution.

[0004] An economically assembled flat-rod type economical connecting rod lock, the connecting rod lock includes a lock body, flat connecting rods, fixing buckles and guide members, the top and bottom rods on both sides of the lock body are respectively connected to one end of the flat connecting rods on both sides, the other ends of the flat connecting rods respectively pass through the fixing members and the guide members, the fixing buckles and the guide members are respectively provided with mounting holes, the middle of the fixing buckle is provided with a rod passing groove opening upwards, both sides of the rod passing groove of the fixing buckle are respectively provided with integrally communicated roller grooves with openings forming locking grooves, when the rollers on both sides of the flat connecting rod at the fixing buckle are guided into the rod passing groove through the opening on one side of the roller groove, the top of the flat connecting rod is higher than the rod passing groove of the fixing buckle, the rollers on both sides at the flat connecting rod slide in through one side of the roller groove of the fixing buckle and are limited in the locking grooves; the key point of its structural design is that the guide member includes a guide seat, a first guide shell, and a second guide shell, the flat connecting rod passes through the connecting rod hole formed by the first guide shell and the second guide shell, the shell formed by the first guide shell and the second guide shell is interference-fitted and fixed in the opening on one side of the guide seat, the flat connecting rod penetrates the guide seat through the first guide shell and the second guide shell, the mounting holes of the guide seat are symmetrically arranged on the lugs extending outward on both sides of the opening side of the guide seat, the seat opening of the guide seat on one side of the lugs is a bevel opening, and the guide seat is shaped like a "several" character with an opening on one side. Thus, the flat connecting rod at the guide member is wrapped by the first guide shell and the second guide shell and then loaded into the guide seat, the guide member is arranged at the corresponding position of the door panel through the mounting holes on both sides of the guide seat; the top of the flat connecting rod is higher than the rod passing groove of the fixing buckle, which facilitates further limiting of the flat connecting rod in the rod passing groove of the fixing buckle.

[0005] The connecting rod grooves on the opening side of the first guide shell and the second guide shell are oppositely attached to form a connecting rod hole, the upper and lower ends of the connecting rod groove on the opening side of the first guide shell and the second guide shell are respectively provided with outwardly protruding "several"-shaped limiting edges, the shell formed by the first guide shell and the second guide shell is fixed to the orifice edges on both sides in the opening on one side of the guide seat through the limiting edges of the first guide shell and the second guide shell. The above structure facilitates the fixed arrangement and alignment loading of the first guide shell and the second guide shell in the guide seat.

[0006] "U"-shaped opening edges are symmetrically arranged on both sides of the middle of the connecting rod groove on the opening side of the first guide shell and the second guide shell respectively, the bottoms of the opening edges are located on both sides of the bottom of the connecting rod groove, the guide seats on both sides of the opening edges of the first guide shell and the second guide shell are respectively provided with corresponding opening holes, and the bottoms of the opening holes are located on both sides of the bottom of the opening of the guide seat. The above structural design reduces the production cost, and at the same time improves the deformation tolerance range during assembly and installation among the first guide shell, the second guide shell and the guide seat.

[0007] The fixing buckle is a stainless steel sheet metal fixing buckle, and the guide seat of the guide component is a stainless steel sheet metal fixing buckle guide seat. The first guide shell and the second guide shell of the guide component are plastic parts, cast parts, or sheet metal parts, respectively. This reduces costs, shortens the production cycle, and meets the strength requirements of the corresponding components. The fixing buckle and the guide seat are formed by stamping and bending stainless steel sheet metal, and the first guide shell and the second guide shell are preferably plastic parts.

[0008] The rollers on both sides of the flat connecting rod are installed higher than the roller grooves on both sides of the fixing buckle. The rollers are guided through the protruding lugs at the top of the openings of the roller grooves on both sides. The protruding lugs facilitate the guidance of the rollers on both sides of the flat connecting rod, and the guidance of the rollers on both sides of the flat connecting rod, which are positioned higher than the rollers, into the roller grooves on both sides of the fixing buckle.

[0009] The width of the upward opening at the middle of the other end of the symmetrical lug of the fastener is greater than the width of the opening at one end of the lug.

[0010] The mounting holes of the retaining clip are symmetrically arranged at the bottom of the flat connecting rod, with the two mounting holes parallel to the flat connecting rod in a straight line. This facilitates the insertion and installation of screws and screwdrivers through the upward-facing opening in the middle of the retaining clip.

[0011] The roller is a roller bearing. The shaft at the center of one roller bearing passes through the flat groove of the flat connecting rod and is connected to the inner ring at the center of the other roller bearing.

[0012] The outer diameters of the flat connecting rod at the fixing buckle and guide are flat key surfaces, and the flat connecting rod is a round connecting rod. Therefore, according to existing technology, the outer diameters of the round connecting rod at the fixing buckle and guide can be machined into flat key surfaces on both sides of the outer diameter.

[0013] This utility model has a reasonable structural design, is convenient to produce, install and use, has low cost, good performance and wide applicability, and is particularly easy to replace existing similar locks; it is mainly suitable for use as an economical linkage lock with a flat bar assembly, as well as for structural improvements of similar products. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention, with the framed portion of the diagram being enlarged and highlighted.

[0015] Figure 2 yes Figure 1 A schematic diagram of the sectional structure of the framed portion.

[0016] Figure 3 yes Figure 1 A schematic diagram of the exploded structure of the framed portion.

[0017] Figure 4 yes Figure 3 A cross-sectional structural diagram.

[0018] Reference numerals and names in the drawings: 1. Lock body, 2. Flat connecting rod, 3. Fixing buckle, 301. Lug, 4. Guide member, 401. Guide seat, 402. First guide shell, 403. Second guide shell, 5. Roller. Embodiments

[0019] The structure and use of the present utility model will be further described below with reference to the accompanying drawings. As Figures 1-4 shown in the figure, the connecting rod lock includes a lock body 1, a flat connecting rod 2, a fixing buckle 3 and a guide member 4. The top and bottom rods on both sides of the lock body are respectively connected to one end of the flat connecting rod on each side, and the other end of the flat connecting rod respectively penetrates through the fixing member and the guide member. The fixing buckle and the guide member are each provided with a mounting hole. The middle of the fixing buckle is provided with a rod passing slot opening upwards, and both sides of the rod passing slot of the fixing buckle are respectively provided with an integrally communicated roller slot with an opening forming a locking slot. While the rollers 5 on both sides of the flat connecting rod at the fixing buckle are guided into the rod passing slot through the opening on one side of the roller slot, the top of the flat connecting rod is higher than the rod passing slot of the fixing buckle, and the rollers on both sides at the flat connecting rod slide in through one side of the roller slot of the fixing buckle and are limited in the locking slot. The above-mentioned guide member includes a guide seat 401, a first guide shell 402, and a second guide shell 403. The flat connecting rod passes through the connecting rod hole formed by the first guide shell and the second guide shell. The shell formed by the first guide shell and the second guide shell is interference-fitted and fixed in the opening on one side of the guide seat. The flat connecting rod penetrates the guide seat through the first guide shell and the second guide shell. The mounting holes of the guide seat are symmetrically arranged on the side lugs extending outward on both sides of the opening side of the guide seat. The seat opening of the guide seat on one side of the side lugs is a bevel opening, and the guide seat is shaped like a "several" character with an opening on one side. At the same time, the connecting rod grooves on the opening side of the first guide shell and the second guide shell are attached to each other to form a connecting rod hole. The upper and lower ends of the connecting rod grooves on the opening side of the first guide shell and the second guide shell are respectively provided with outwardly protruding "several"-shaped limiting edges, and the shell formed by the first guide shell and the second guide shell is fixed to the orifice edges on both sides inside the opening on one side of the guide seat through the limiting edges of the first guide shell and the second guide shell. The middle two sides of the connecting rod groove on the opening side of the first guide shell and the second guide shell are respectively symmetrically provided with U-shaped opening edges, the bottoms of the opening edges are located on both sides of the bottom of the connecting rod groove, the guide seats on both sides of the opening edges of the first guide shell and the second guide shell are respectively provided with corresponding opening holes, and the bottoms of the opening holes are located on both sides of the bottom of the opening of the guide seat.

[0020] Furthermore, the aforementioned fixing buckle is a stainless steel sheet metal fixing buckle, and the guide seat of the guide component is a stainless steel sheet metal fixing buckle guide seat. The first guide shell and the second guide shell of the guide component are plastic parts. The installation position of the rollers on both sides of the flat connecting rod is higher than the roller grooves on both sides of the fixing buckle. The rollers on both sides are guided through the lugs 301 that are raised at the top of the openings at the roller grooves on both sides. The width of the upward opening at the middle of the other end of the lug of the fixing buckle is greater than the width of the opening at one end of the lug. The mounting holes of the fixing buckle are symmetrically arranged at the bottom of the flat connecting rod, and the two mounting holes are parallel to the flat connecting rod and arranged in a straight line. The rollers are roller bearings. The shaft part at the center of one roller bearing passes through the flat rod groove of the flat connecting rod and is connected to the inner ring at the center of the other roller bearing.

[0021] In use, the lock body of the linkage lock is fixedly installed in the corresponding lock body hole on the door panel. The fixing buckle and guide on the inside of the door panel are installed in a fixed position by screws. After unlocking, the rotation of the handle on the lock body will drive the top and bottom rods on both sides of the lock body to move synchronously. The top and bottom rods on both sides will drive the connecting rods on both sides to move synchronously, so that the ends of the connecting rods or the ends of the connecting rods can be inserted into and pulled out of the corresponding holes on the door frame through the lock rod, thereby locking and opening the door panel.

[0022] The innovations of this linkage lock are as follows: 1. Guide component: The guide part is made of plastic, while the supporting part is made of stainless steel sheet metal; thus, the connection between the link and the plastic will not scratch the link, resulting in lower cost, strength that fully meets the needs of various industries, and a short production cycle. 2. Fixing buckle: Stainless steel sheet metal process; lower cost, strength that fully meets the needs of various industries, and a short production cycle. The main challenge after the structural changes to the guide component and fixing buckle is strength, specifically: 1. Failure load of the fixing buckle: approximately 6000N; 2. Failure load of the guide component: approximately 4000N. In a highly competitive market environment, this linkage lock is a product that can replace existing similar locks, mainly meeting the performance of the original products while significantly reducing costs. Specifically, this linkage lock fully meets the installation hole positions of the original cabinets, providing convenience for the replacement and promotion of existing similar products. The specific market economic benefits of this linkage lock are as follows: 1. Significantly reduced overall lock cost; 2. Flexible promotion; customers can replace the fixing buckle, guide component, and link separately without considering replacing the lock body, offering diverse customer choices.

[0023] The above description is intended to illustrate the technical means of this utility model and is not intended to limit the technical scope of this utility model. Any obvious improvements or substitutions made to this utility model by those skilled in the art based on existing common knowledge also fall within the protection scope of the claims of this utility model.

Claims

1. A flat rod type economic linkage lock, comprising a lock body (1), a flat connecting rod (2), a fixing buckle (3), and a guide (4), wherein the top and bottom rods on both sides of the lock body are respectively connected to one end of the flat connecting rod on both sides, and the other end of the flat connecting rod passes through the fixing member and the guide member respectively, the fixing buckle and the guide member are respectively provided with mounting holes, the middle of the fixing buckle is provided with a rod-through groove with an upward opening, and the two sides of the rod-through groove of the fixing buckle are respectively provided with roller grooves that are integrally connected and open to form a locking groove, the rollers (5) on both sides of the flat connecting rod at the fixing buckle are guided into the rod-through groove through the opening on one side of the roller groove, while the top of the flat connecting rod is higher than the rod-through groove of the fixing buckle, and the rollers on both sides of the flat connecting rod slide into and are confined in the locking groove through one side of the roller groove of the fixing buckle; characterized in that The guide member (4) comprises a guide seat (401), a first guide shell (402), and a second guide shell (403), the flat connecting rod (2) passes through a connecting rod hole formed by the first guide shell and the second guide shell, the shell formed by the first guide shell and the second guide shell is interference-fitted and fixed in an opening on one side of the guide seat, the flat connecting rod penetrates the guide seat through the first guide shell and the second guide shell, the mounting holes of the guide seat are symmetrically arranged on lugs extending outward from both sides of the opening side of the guide seat, the seat opening at the guide seat on one side of the lugs is a beveled opening, and the guide seat is shaped like a "几" with an opening on one side.

2. The economical flat-bar type linkage lock according to claim 1, characterized in that... The connecting rod grooves on the opening side of the first guide shell (402) and the second guide shell (403) are oppositely attached to form the connecting rod hole, the upper and lower opening ends of the connecting rod grooves on the opening side of the first guide shell and the second guide shell are respectively provided with outwardly protruding "几"-shaped limiting edges, and the shell formed by the first guide shell and the second guide shell is fixed to the two sides of the orifice inside the opening on one side of the guide seat (401) through the limiting edges of the first guide shell and the second guide shell.

3. The economical flat-bar type linkage lock according to claim 2, characterized in that... The two middle sides of the connecting rod groove on the opening side of the first guide shell (402) and the second guide shell (403) are respectively and symmetrically provided with U-shaped opening edges, the bottoms of the opening edges are located on both sides of the bottom of the connecting rod groove, the guide seats (401) on both sides of the opening edges of the first guide shell and the second guide shell are respectively provided with corresponding opening holes, and the bottoms of the opening holes are located on both sides of the bottom of the opening of the guide seat.

4. The economical flat-bar type linkage lock according to claim 1, characterized in that... The fixing buckle (3) is a stainless steel sheet metal fixing buckle, the guide seat (401) of the guide member (4) is a stainless steel sheet metal fixing buckle guide seat, and the first guide shell (402) and the second guide shell (403) of the guide member are respectively a plastic part, a casting or a sheet metal part.

5. The economical flat-bar type linkage lock according to claim 1, characterized in that... The mounting positions at the two side rollers (5) of the flat connecting rod (2) are higher than the roller grooves on both sides inside the fixing buckle (3), and the two side rollers are guided in through the lugs (301) raised from the top of the openings at the two side roller grooves.

6. The economical flat-bar type linkage lock according to claim 5, characterized in that... The upward opening width at the middle of the symmetrical other end of the lug (301) of the fixing buckle (3) is greater than the opening width at one end of the lug.

7. The economical flat-bar type linkage lock according to claim 1, characterized in that... The mounting holes of the fixing buckle (3) are symmetrically arranged at the bottom below the flat connecting rod (2), and the two mounting holes are arranged in a straight line parallel to the flat connecting rod.

8. The economical flat-bar type linkage lock according to claim 1, characterized in that... The roller (5) is a roller bearing, the shaft portion at the center of one side roller bearing passes through the flat rod groove of the flat connecting rod (2), and is connected to the inner ring at the center of the other side roller bearing.

9. The economical flat-bar type linkage lock according to claim 1, characterized in that... The outer diameters on both sides of the flat connecting rod at the positions of the fixing buckle (3) and the guide member (4) are flat key surfaces, and the flat connecting rod is a circular connecting rod.

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