Door locking device of briquetting machine

By designing a locking device with locking rods, snap-fit ​​components, and irregularly shaped blocks, the problem of difficult maintenance caused by lock wear was solved, enabling rapid restoration and improved work efficiency.

CN224224618UActive Publication Date: 2026-05-12SHANDONG JUNHE MACHINERY MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG JUNHE MACHINERY MANUFACTURING CO LTD
Filing Date
2025-04-24
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The lock door structure of existing metal briquetting machines is worn or broken, making maintenance difficult and affecting work efficiency.

Method used

A door locking device comprising a locking rod, a snap-fit ​​component, a shaped block, and an elastic element has been designed. By adjusting the position of the snap-fit ​​component and the lock head assembly, the device can be quickly restored to its working state, thereby improving maintenance efficiency.

Benefits of technology

It enables rapid recovery of the door locking device under wear conditions, improving maintenance and work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for the technical field of briquetting machines, and provides a briquetting machine door locking device which comprises a lock rod used for locking a briquetting machine door cover, an accommodating space is arranged in the lock rod, and a clamping piece is fixedly connected in the accommodating space; a lock head assembly is arranged in the containing space of the lock rod and comprises a special-shaped block connected with the clamping piece in a clamped mode and a transition piece connected to the inner wall of the containing space in an abutting mode, and a lock head is fixedly connected to the transition piece. By adjusting the relative position of the clamping piece and the lock head assembly, the door locking device can quickly recover the working state under the condition that the front end of the lock head is abnormally abraded, the maintenance efficiency is improved, and the working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of briquetting machine technology, and in particular to a briquetting machine door locking device. Background Technology

[0002] Metal briquetting machines are used to compress various thin metal scraps (offcuts, shavings, scrap steel, scrap aluminum, scrap copper, scrap stainless steel, and scrapped automobiles, etc.) into qualified furnace feed in various shapes such as cuboids, octagons, and cylinders. This facilitates storage and transportation, making them ideal equipment for metal scrap processing in steel mills, non-ferrous metal plants, and smelters. However, existing metal briquetting machines suffer from wear and breakage of their locking mechanisms and latches over time, leading to difficult maintenance and low efficiency, thus affecting the machine's overall working efficiency.

[0003] Chinese patent publication number CN221339700U discloses a locking device for a hydraulic metal briquetting machine, relating to the technical field of locking mechanisms for metal briquetting machines. The device includes a machine body, a door cover on one side of the machine body, a door cover pusher cylinder on one side of the machine body, a side pusher cylinder on one side of the machine body, a main pusher cylinder on one side of the machine body, and a locking device on one side of the machine body. The locking device includes a locking cylinder. A first circular hole is formed on one side of the machine body, and a fixing plate is fixedly connected to the side of the machine body near the first circular hole. A first screw hole is formed on one side of the fixing plate. A flange is fixedly connected to one side of the locking cylinder, and a second circular hole is formed on one side of the flange. This locking device is difficult to maintain, affecting work efficiency.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of this utility model is to provide a locking device for a briquetting machine, which can quickly restore the working state, improve maintenance efficiency, and improve work efficiency.

[0006] To achieve the above objectives, this utility model provides a locking device for a briquetting machine, comprising: a locking rod for locking the door cover of the briquetting machine, wherein the locking rod has a receiving space and a snap-fit ​​component is fixedly connected in the receiving space; a lock head assembly is provided in the receiving space of the locking rod, the lock head assembly comprising an irregularly shaped block that snaps into the snap-fit ​​component and a transition component that abuts against the inner wall of the receiving space, and a lock head is fixedly connected to the transition component.

[0007] According to the briquetting machine locking device of this utility model, a central shaft is fixedly connected inside the locking rod, and an elastic element is provided on the outer sleeve of the central shaft. One end of the elastic element is fixedly connected inside the locking rod, and a baffle is fixedly connected to the other end of the elastic element. The baffle abuts against the irregular block.

[0008] According to the briquetting machine locking device of this utility model, at least one set of snap-fit ​​members are fixedly connected inside the locking rod, and one set of snap-fit ​​members is configured as a retaining ring for snapping with the irregular block.

[0009] According to the briquetting machine locking device of this utility model, the irregular block is elliptical, a gap is provided between a group of retaining rings and the minimum diameter of the irregular block can pass through the gap, a protrusion is fixedly connected to the irregular block, and a pin hole matching the protrusion is provided on the retaining ring.

[0010] According to the briquetting machine door locking device of this utility model, the lock head assembly further includes a transition shaft fixedly connected to the irregular part, and a connecting shaft is fixedly connected between the transition shaft and the transition part. The center of the transition shaft and the connecting shaft are provided with a channel that can accommodate the passage of the central shaft. The outer diameter of the transition shaft and the connecting shaft is smaller than the inner diameter of the retaining ring.

[0011] According to the briquetting machine locking device of this utility model, the transition member is set as a limiting shaft, the outer wall of the limiting shaft is fitted with the inner wall of the locking rod's internal storage space, and a lock head is fixedly connected to the limiting shaft.

[0012] This utility model provides a locking device for a briquetting machine, comprising: a locking rod for locking the door cover of the briquetting machine, wherein the locking rod has a receiving space and a snap-fit ​​component is fixedly connected within the receiving space; a lock head assembly is provided within the receiving space of the locking rod, the lock head assembly including a shaped block that snaps into the snap-fit ​​component and a transition component that abuts against the inner wall of the receiving space, and a lock head is fixedly connected to the transition component; by adjusting the relative position of the snap-fit ​​component and the lock head assembly, the locking device can quickly return to working status even when the front end of the lock head is abnormally worn, thereby improving maintenance efficiency and work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the appearance of this utility model;

[0015] Figure 3 This is a schematic diagram of the lock assembly structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the retaining ring of this utility model;

[0017] Figure 5 This is a utility model Figure 1 A magnified view of part A in the image;

[0018] In the figure, 1-locking rod, 11-central shaft, 12-elastic element, 13-retaining ring, 14-pin hole, 15-baffle, 3-lock head assembly, 31-irregular block, 32-connecting shaft, 33-limiting shaft, 34-lock head, 37-transition shaft. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0025] See Figures 1 to 5 This utility model provides a locking device for a briquetting machine. The locking device includes: a locking rod 1 for locking the door cover of the briquetting machine; the locking rod 1 has a receiving space, and a snap-fit ​​component is fixedly connected in the receiving space; a lock head assembly 3 is provided in the receiving space of the locking rod 1, the lock head assembly 3 includes a shaped block 31 that snaps into the snap-fit ​​component and a transition component that abuts against the inner wall of the receiving space, and a lock head 34 is fixedly connected to the transition component; by adjusting the relative position of the snap-fit ​​component and the lock head assembly 3, the locking device can quickly return to working status even if the front end of the lock head 34 is abnormally worn, thereby improving maintenance efficiency and work efficiency.

[0026] See Figures 1 to 5 Preferably, the locking rod 1 of this utility model has a central shaft 11 fixedly connected inside, and an elastic member 12 is provided on the outer sleeve of the central shaft 11. One end of the elastic member 12 is fixedly connected inside the locking rod 1, and a baffle 15 is fixedly connected to the other end of the elastic member 12. The baffle 15 abuts against the irregular block 31.

[0027] See Figures 1 to 5 In addition, at least one set of snap-fit ​​components are fixedly connected inside the locking rod 1 of this utility model, and one set of snap-fit ​​components is configured as a retaining ring 13 that snaps into the irregular block 31.

[0028] See Figures 1 to 5 Furthermore, the irregular block 31 of this utility model is elliptical, a gap is provided between a group of the retaining rings 13 and the minimum diameter of the irregular block 31 can pass through the gap, a protrusion is fixedly connected to the irregular block 31, and a pin hole 14 matching the protrusion is provided on the retaining ring 13.

[0029] See Figures 1 to 5Even better, the lock head assembly 3 of this utility model further includes a transition shaft 37 fixedly connected to the irregular block 31. The transition shaft 37 is fixedly connected to the transition member by a connecting shaft 32. The center of both the transition shaft 37 and the connecting shaft 32 is provided with a channel that can accommodate the passage of the central shaft 11. The outer diameter of both the transition shaft 37 and the connecting shaft 32 is smaller than the inner diameter of the retaining ring 13. The transition member is set as a limiting shaft 33. The outer wall of the limiting shaft 33 is attached to the inner wall of the storage space inside the lock rod 1. The lock head 34 is fixedly connected to the limiting shaft 33.

[0030] Working principle: The center of the irregular block 31, the transition shaft 37, the connecting shaft 32, and the limiting shaft 33 are all provided with channels to accommodate the passage of the central shaft 11. The lock head assembly 3 is placed in the receiving space inside the lock rod 1. At this time, the central shaft 11 is placed in the channel, the irregular block 31 abuts against the baffle 15, and the irregular block 31 passes through several sets of retaining rings 13. Rotating the irregular block 31 drives the two protrusions on the irregular block 31 to be placed in the pin holes 14 on the retaining rings 13. At this time, the elastic element 12 pushes the baffle 15 to abut against the irregular block 31, forcing the irregular block 31 to be tightly attached to the retaining rings 13 and preventing the irregular block 31 from rotating.

[0031] In summary, this utility model provides a locking device for a briquetting machine, comprising: a locking rod for locking the door cover of the briquetting machine, wherein the locking rod has a receiving space and a snap-fit ​​component is fixedly connected within the receiving space; a lock head assembly is provided within the receiving space of the locking rod, the lock head assembly comprising an irregularly shaped block that snaps into the snap-fit ​​component and a transition component that abuts against the inner wall of the receiving space, and a lock head is fixedly connected to the transition component; by adjusting the relative position of the snap-fit ​​component and the lock head assembly, the locking device can quickly return to working status even when the front end of the lock head is abnormally worn, thereby improving maintenance efficiency and work efficiency.

[0032] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A locking device for a briquetting machine, characterized in that, include: A locking rod for locking the door cover of the briquetting machine, wherein the locking rod has a receiving space and a snap-fit ​​component is fixedly connected in the receiving space; A lock head assembly is provided within the receiving space of the lock rod. The lock head assembly includes a shaped block that engages with a snap-fit ​​component and a transition component that abuts against the inner wall of the receiving space. A lock head is fixedly attached to the transition component.

2. The locking device for the briquetting machine according to claim 1, characterized in that, A central shaft is fixedly connected inside the locking rod, and an elastic element is sleeved on the central shaft. One end of the elastic element is fixedly connected inside the locking rod, and a baffle is fixedly connected to the other end of the elastic element. The baffle abuts against the irregular block.

3. The briquetting machine door locking device according to claim 2, characterized in that, At least one set of snap-fit ​​components is fixedly connected inside the locking rod, and one set of snap-fit ​​components is configured as a retaining ring that snaps into the irregular block.

4. The locking device for the briquetting machine according to claim 3, characterized in that, The irregularly shaped block is elliptical, and there is a gap between a group of retaining rings, allowing the smallest diameter of the irregularly shaped block to pass through the gap. A protrusion is fixedly attached to the irregularly shaped block, and a pin hole matching the protrusion is provided on the retaining ring.

5. The briquetting machine door locking device according to claim 4, characterized in that, The lock assembly also includes a transition shaft fixedly connected to the irregular part. A connecting shaft is fixedly connected between the transition shaft and the transition part. Both the transition shaft and the connecting shaft have a channel at their center that can accommodate the passage of the central shaft. The outer diameter of both the transition shaft and the connecting shaft is smaller than the inner diameter of the retaining ring.

6. The briquetting machine door locking device according to claim 5, characterized in that, The transition piece is set as a limiting shaft, the outer wall of the limiting shaft is fitted with the inner wall of the locking rod's internal storage space, and a lock head is fixedly connected to the limiting shaft.