A hook structure

Abstract

This utility model relates to the field of snap-fit ​​structure technology and discloses a snap-fit ​​structure. It includes: a frame with a window; a lead screw rotatably mounted on the frame, with its rotation axis extending along the length of the frame; and a snap-fit ​​assembly sleeved on the lead screw and threadedly engaged with it. The rotational movement of the lead screw drives the snap-fit ​​assembly to move along the length of the frame, allowing the snap-fit ​​assembly to engage or disengage with an external instrument through the window. By engaging with the external instrument through the snap-fit ​​structure and pulling the external instrument to ensure one end is pressed tightly against the frame, it effectively prevents the external instrument from shifting or falling off in environments with high vibration or frequent movement, thus significantly improving the stability of the external instrument. Simultaneously, installation and disassembly are more convenient and quick, requiring no additional tools, greatly improving work efficiency and saving time and labor costs.

Description

Technical Field

[0001] This utility model relates to the field of snap-fit ​​structure technology, specifically to a snap hook structure. Background Technology

[0002] Paperless recorder devices typically require mounting on specific frames or brackets to ensure their stability and reliability. However, existing mounting methods mainly include screw fixing, slot fixing, and adhesive fixing, and these methods have certain limitations when used in environments with high vibration or frequent movement, leading to displacement or detachment. Utility Model Content

[0003] The purpose of this invention is to provide a hook structure to address the aforementioned shortcomings in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A hook structure, comprising:

[0006] A frame on which windows are opened;

[0007] A lead screw is rotatably mounted on the frame, and its axis of rotation extends along the length of the frame.

[0008] A hook assembly is sleeved on the lead screw and engages with the thread of the lead screw.

[0009] The rotational motion of the lead screw drives the hook assembly to move along the length of the frame, allowing the hook assembly to engage or disengage from external instruments through the window.

[0010] As a preferred embodiment of this utility model, the frame includes:

[0011] The upper and lower crossbeams are arranged in parallel and opposite directions, and each of them is provided with a sliding groove extending along the length direction;

[0012] The frame also includes a first fixing plate and a second fixing plate that are vertically connected between the upper and lower crossbeams, with the two fixing plates spaced apart along the length of the frame.

[0013] As a preferred embodiment of this utility model, the lead screw includes, along the axial direction:

[0014] A stepped shaft extending to the outside of the frame, an optical axis segment connected to one end of the stepped shaft, and a knob end;

[0015] The assembly shaft segment connected to the other end of the stepped shaft, the threaded segment threadedly engaged with the hook assembly, and the support shaft segment rotatably engaged with the second fixed plate.

[0016] In a preferred embodiment of this utility model, the assembly shaft section includes a transition section and a contraction section, wherein the diameter of the contraction section is smaller than the diameter of the transition section.

[0017] As a preferred embodiment of the present invention, the first fixing plate includes: a fixing block, wherein the fixing block has a through hole and a through groove communicating with the through hole;

[0018] Two limiting blocks are symmetrically arranged in the through groove, and a limiting hole is formed between them.

[0019] In a preferred embodiment of this utility model, the diameter of the through hole is adapted to the outer diameter of the transition section of the assembly shaft section, and the diameter of the limiting hole is adapted to the outer diameter of the contraction section, so that the lead screw can rotate within the first fixed plate and be axially limited.

[0020] As a preferred embodiment of this utility model, the hook assembly includes:

[0021] The slider has guide protrusions symmetrically arranged at its upper and lower ends, which slide and engage with the grooves of the frame;

[0022] It is located in the middle of the slider and has a threaded hole that mates with the threaded section of the lead screw;

[0023] A hook rotatably connected to the slider via the elastic element extends toward the window.

[0024] As a preferred embodiment of this utility model, the hook includes a base and a hook portion, wherein the base is rotatably connected to an elastic element.

[0025] In a preferred embodiment of this utility model, the elastic element is composed of a rotating shaft and a torsion spring.

[0026] As a preferred embodiment of this utility model, a drive groove for tool engagement is provided on the knob end.

[0027] This invention offers the following advantages: By using a hook structure to engage with external instruments and pulling the external instrument to ensure one end is firmly against the frame, it effectively prevents the external instrument from shifting or falling off in environments with high vibration or frequent movement, thus significantly improving the stability of the external instrument. Furthermore, installation and disassembly are more convenient and quick, requiring no additional tools, greatly improving work efficiency and saving time and labor costs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0029] Figure 1 This is a schematic diagram showing the assembly space required for the external instrument of this utility model.

[0030] Figure 2 This is a schematic diagram of the external instrument structure of this utility model.

[0031] Figure 3 This is a schematic diagram showing the external instrument of this utility model being installed into the assembly space.

[0032] Figure 4 This is a front view of the hook structure of this utility model.

[0033] Figure 5 This is a reverse view of the hook structure of this utility model.

[0034] Figure 6 This is a cross-sectional schematic diagram of the hook structure of this utility model.

[0035] Figure 7 This is a schematic diagram of the structure of the first fixing plate of this utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] 11. Plate; 12. Assembly space; 13. Extension frame; 14. Box body; 200. Hook structure; 21. Frame; 211. Upper crossbeam; 212. Lower crossbeam; 213. Second fixing plate; 214. First fixing plate; 2141. Fixing block; 2142. Through hole; 2143. Through groove; 2144. Limiting block; 2145. Limiting hole; 215. Sliding groove; 216. Window; 22. Lead screw; 221. Stepped shaft; 222, Optical shaft section; 223, Knob end; 2231, Drive groove; 224, Threaded section; 225, Assembly shaft section; 2251, Transition section; 2252, Retraction section; 226, Support shaft section; 23, Hook assembly; 231, Slider; 2311, Guide protrusion; 232, Hook; 2321, Base; 2322, Hook; 233, Elastic element; 2331, Rotating shaft; 2332, Torsion spring; 234, Threaded hole. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] like Figure 1 As shown in the attached diagram, this is a schematic of the mounting space 12 required for the external instrument. The external instrument is preferably a paperless recorder, but it is not limited to this; any instrument consisting of an extension frame 13 and a housing 14 is suitable for this mounting space 12. Figure 2 The diagram shows the specific structure of the external instrument.

[0040] like Figure 3 As shown, the external instrument is pushed into the assembly space 12 in the direction indicated by the arrow. During this process, the extension frame 13 of the instrument abuts against one end face of the plate 11, while the housing 14 enters the assembly space 12. At this time, the distance between the upper, lower, left and right end faces of the housing 14 and the inner wall of the assembly space 12 is only enough to accommodate the width of the hook 232 structure 200, and the error of this distance is 0.1mm.

[0041] The above describes the application scenarios of this utility model. To better understand this utility model, the following further describes some specific embodiments of the hook structure of this utility model:

[0042] In some embodiments, such as Figure 4-6 As shown, the hook structure includes a frame 21, a lead screw 22, and a hook 232 assembly 23. The frame 21 includes an upper crossbeam 211 and a lower crossbeam 212 arranged parallel to each other, each having a sliding groove 215 extending along its length. The sliding groove 215 consists of an upper sliding groove 215 and a lower sliding groove 215. A first fixing plate 214 and a second fixing plate 213 are vertically connected between the upper crossbeam 211 and the lower crossbeam 212. The two fixing plates are bolted to the crossbeams to form a stable support structure that can effectively resist external interference. Simultaneously, the hook 232 assembly 23 can slide within the sliding groove 215, allowing the position of the hook 232 to be adjusted according to actual needs. This adjustability enables the structure to adapt to different installation environments and requirements, increasing its versatility and flexibility.

[0043] Furthermore, the two fixed plates are arranged at intervals along the length of the frame 21, that is, at the distance of the aforementioned slide groove 215. Thus, the two fixed plates, the upper crossbeam 211, and the lower crossbeam 212 form a window 216.

[0044] The lead screw 22 is rotatably mounted on the frame 21, and its axis of rotation extends along the length of the frame 21. Specifically, the lead screw 22 includes, along its axial direction: a stepped shaft 221 extending to the outside of the frame 21, a smooth shaft section 222 connected to one end of the stepped shaft 221, and a knob end 223; an assembly shaft section 225 connected to the other end of the stepped shaft 221 and rotatably engaged with the first fixing plate 214; a threaded section 224 threadedly engaged with the hook 232 assembly 23; and a support shaft section 226 rotatably engaged with the second fixing plate 213.

[0045] The knob end 223 of the lead screw 22 extends to the outside of the frame 21. The operator can control the rotation of the lead screw 22 by rotating the drive groove 2231 on the knob end 223 with a tool, thereby achieving precise adjustment of the hook 232 assembly 23 and realizing rapid positioning and fixation.

[0046] The assembly shaft section 225 is rotatably engaged with the first fixed plate 214, and the support shaft section 226 is rotatably engaged with the second fixed plate 213. This ensures that the lead screw 22 is stably supported on the frame 21 during rotation, preventing swaying or displacement caused by external forces or its own weight. This stable support structure improves the reliability of the entire hook 232 structure 200 and extends its service life. Lubricating oil or grease is also used at the mating points of the two shaft sections and the two fixed plates to reduce friction between the fixed plates and the lead screw 22, thus reducing wear.

[0047] In addition, by setting the lead screw 22 into multiple shaft segments, the stress of the lead screw 22 can be distributed to different shaft segments and mating parts, avoiding damage caused by local stress concentration.

[0048] like Figure 7 As shown, the first fixing plate 214 includes a fixing block 2141, a through hole 2142 on the fixing block 2141, and a through groove 2143 communicating with the through hole 2142. Two limiting blocks 2144 are symmetrically arranged in the through groove 2143, and a limiting hole 2145 is formed between them, which are connected to each other by bolts. The through hole 2142 and the limiting hole 2145 make the installation process of the lead screw 22 intuitive and simple. The operator only needs to align the assembly shaft section 225 of the lead screw 22 with the through hole 2142 and insert it, and ensure that the contraction section 2252 enters the limiting hole 2145 to complete the installation. This intuitive installation method reduces the possibility of installation errors and improves installation efficiency.

[0049] like Figure 6As shown, the mounting shaft section 225 on the lead screw 22 includes a transition section 2251 and a contraction section 2252, the diameter of which is smaller than that of the transition section 2251. The diameter of the through hole 2142 is adapted to the outer diameter of the transition section 2251 of the mounting shaft section 225, allowing the lead screw 22 to pass smoothly through the through hole 2142 during installation. Simultaneously, the transition section 2251 provides sufficient support during operation, ensuring stable rotation of the lead screw 22. The diameter of the limiting hole 2145 is adapted to the outer diameter of the contraction section 2252, allowing the lead screw 22 to rotate within the first fixed plate 214 and be axially limited, ensuring that the lead screw 22 does not experience unnecessary axial displacement during operation, thereby guaranteeing the stability and reliability of the entire hook 232 structure 200.

[0050] Furthermore, the hook 232 assembly 23 is sleeved on the lead screw 22 and threadedly engaged with the lead screw 22. Specifically, the hook 232 assembly 23 includes: a slider 231, with guide protrusions 2311 symmetrically arranged at its upper and lower ends to slide and engage with the grooves 215 of the frame 21, so that the hook 232 assembly 23 can maintain stable linear motion during movement, avoiding installation errors caused by shaking or offset. The sliding engagement also reduces friction and improves the smoothness of movement. A threaded hole 234 is located in the middle of the slider 231 and has a threaded hole 234 that engages with the threaded section 224 of the lead screw 22. The hook 232 is rotatably connected to the slider 231 by an elastic element 233 and extends toward the window 216.

[0051] The aforementioned hook 232 includes a base 2321 and a hook portion 2322, with the base 2321 rotatably connected to the elastic element 233. The elastic element 233 is composed of a combination of a rotating shaft 2331 and a torsion spring 2332, or a combination of a rotating shaft 2331 and a disc spring. Thus, when the hook portion 2322 is compressed, it rotates along the elastic element 233 and is hidden within the slider 231. When the hook portion 2322 is not affected by external force, it expands outward through elastic force, pulling the entire hook 232 structure 200, causing the hook portion 2322 to be firmly engaged with the housing 14. At the same time, the base 2321 can withstand large tensile or compressive forces, ensuring the overall stability of the hook 232 assembly 23.

[0052] In use, the hook 232 structure 200 is inserted between the inner wall of the housing 14 and the assembly space 12. At this time, the hook 2322 is compressed and hidden in the slider 231 through the elastic element 233. Then, the entire hook 232 structure 200 is pushed inward, so that one end of the upper crossbeam 211 and the lower crossbeam 212 reaches the bottom of the assembly space 12. Next, the drive groove 2231 of the knob end 223 on the screw 22 is turned with a tool. The rotation of the screw 22 drives the hook 232 assembly 23 (slider 231) to move along the length of the frame 21 (screw 22), so that the hook 232 assembly 23 (the hook 2322 on the hook 232) is engaged with the bayonet on the external instrument through the window 216. Finally, the entire hook 232 structure 200 is pulled, so that the hook 2322 is fully engaged with the bayonet. The external instrument is moved at this time, and the extension frame 13 on the external instrument is tightly pressed against the... Figure 1 On one end face of the plate 11 shown.

[0053] like Figure 3 As shown, this is only a simplified schematic diagram. The hook 232 structure 200 can also be locked to the four sides of the box 14 according to actual needs.

[0054] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A carabiner structure, characterized by, include: A frame on which windows are opened; A lead screw is rotatably mounted on the frame, and its axis of rotation extends along the length of the frame. A hook assembly is sleeved on the lead screw and engages with the thread of the lead screw. The rotational motion of the lead screw drives the hook assembly to move along the length of the frame, allowing the hook assembly to engage or disengage from external instruments through the window.

2. The clasp structure of claim 1, wherein: The framework includes: The upper and lower crossbeams are arranged in parallel and opposite directions, and each of them is provided with a sliding groove extending along the length direction; The frame also includes a first fixing plate and a second fixing plate that are vertically connected between the upper and lower crossbeams, with the two fixing plates spaced apart along the length of the frame.

3. The clasp structure of claim 2, wherein: The lead screw includes, along its axial direction: A stepped shaft extending to the outside of the frame, an optical axis segment connected to one end of the stepped shaft, and a knob end; The assembly shaft segment connected to the other end of the stepped shaft, the threaded segment threadedly engaged with the hook assembly, and the support shaft segment rotatably engaged with the second fixed plate.

4. The clasp structure of claim 3, wherein: The assembly shaft section includes a transition section and a contraction section, wherein the diameter of the contraction section is smaller than the diameter of the transition section.

5. The clasp structure of claim 4, wherein: The first fixing plate includes: a fixing block, wherein the fixing block has a through hole and a through groove communicating with the through hole; Two limiting blocks are symmetrically arranged in the through groove, and a limiting hole is formed between them.

6. The clamping hook structure according to claim 5, characterized in that: The diameter of the through hole is adapted to the outer diameter of the transition section of the assembly shaft section, and the diameter of the limiting hole is adapted to the outer diameter of the contraction section, so that the lead screw can rotate within the first fixed plate and be axially limited.

7. The clamping hook structure according to claim 6, characterized in that: The hook assembly includes: The slider has guide protrusions symmetrically arranged at its upper and lower ends, which slide and engage with the grooves of the frame; It is located in the middle of the slider and has a threaded hole that mates with the threaded section of the lead screw; A hook is rotatably connected to the slider via an elastic element, the hook extending toward the window.

8. The clamping hook structure according to claim 7, characterized in that: The hook includes a base and a hook portion, wherein the base is rotatably connected to an elastic element.

9. The clasp structure of claim 8, wherein: The elastic element is composed of a rotating shaft and a torsion spring.

10. The clamping hook structure of claim 3, wherein: The knob end has a drive groove for tool engagement.

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