clip connector

Abstract

The clamp connector consists of an upper clamp cover, a lower clamp cover, and a pin housing a torsion spring. One side of the upper or lower clamp cover has an entry lug with an elliptical niche carved into it, and the upper niche wall has an entry hole. The other side has a limiting lug with a funnel-shaped opening at the top of its slot, horizontally corresponding to and spatially connected to the entry hole. During assembly, the pin is inclined through the entry hole, passes through the through-hole and the center of the torsion spring, and reaches the limiting lug before its end falls below the niche wall to complete the installation. This invention uses inclined insertion instead of vertical assembly, and the elliptical niche provides ample operating space, making it particularly suitable for small clamps or applications with high torsion spring strength, significantly reducing assembly difficulty. The horizontal correspondence between the entry hole and the limiting lug, along with the straight guidance of the funnel opening, forms a precise path, preventing assembly misalignment. The self-positioning of the pin end ensures accurate installation and smooth opening and closing. The niche is carved from the inside out, increasing the local wall thickness, and the funnel-shaped slot serves both guiding and supporting functions, solving the problems of thin walls and easy deformation in traditional holes.

Description

Technical Field

[0001] This invention relates to a clip, and more specifically to a clip connector that can be connected to other objects. Background Technology

[0002] The existing clamp consists of an upper clamp and a lower clamp, connected by a pin with a torsion spring. When using this type of clamp, the tail ends of the upper and lower clamps are pressed together, causing their front ends to open. The front ends are then inserted into the item to be clamped. Once the tail ends are released, the front ends grip the item under the action of the two torsion spring arms, thus clamping the item.

[0003] The clamping force of the clamp is determined by the strength of the torsion spring and the position of the pin through the upper and lower clamp covers (lever principle). Regardless of the size and length of the clamp, unilaterally increasing the strength of the torsion spring (such as increasing the spring diameter, increasing the number of spring coils, shortening the torsion arm, etc.) will make the pin installation very difficult.

[0004] Specifically, existing clamps typically require vertical alignment with the pin holes for assembly, which is extremely inconvenient in narrow spaces or on small clamps. Furthermore, the pin holes in existing clamps are usually through-holes with thin walls, making them prone to deformation under stress and causing misalignment, affecting the smoothness of the clamp's opening and closing. Additionally, the torsion spring is prone to displacement or popping out during installation, requiring repeated adjustments. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the above-mentioned problems and provide a clamp connector that, in the case of high torsion spring strength and small clamp size, adopts an inclined insertion method, and provides operating space through an elliptical niche design, allowing the shaft pin to enter at a certain angle, which greatly reduces the assembly difficulty.

[0006] The technical solution of the present invention is as follows: A clip connector, consisting of an upper clip and a lower clip, with a pin fitted with a torsion spring passing through both clips, is characterized in that: one side of the upper or lower clip has an entry lug, which has an elliptical niche carved from the inside out; the upper niche wall has an entry hole for the pin to pass through from the outer surface; the lower part of the niche wall corresponds horizontally to a limiting lug with a flared slot on the other side; the upper part of the flared opening of the limiting lug slot is spatially connected to the entry hole; when the upper or lower clip is stacked inside and outside at the point where the pin passes through it, and the torsion spring is placed in the passageway, the pin passes obliquely through the entry hole, through the passing part of the upper or lower clip and the center space of the torsion spring, and reaches the limiting lug at its end; the end of the pin then falls from above the niche wall to below the niche wall, thus installing the upper and lower clips.

[0007] Preferably, a hook is provided at the front end of the upper clamping cover, and a through hole is provided on the inner side of the hook to the tail end and the front end; a limiting groove for placing a limiting nut is provided on the channel of the through hole. When a screw is inserted into the through hole, it passes through the limiting nut. By rotating the screw, it can extend and retract into the inner side wall of the hook, thereby realizing the control of the increase or decrease of the distance between the end of the screw and the other side wall of the inner side of the hook.

[0008] Preferably, a first connecting end and a second connecting end extend downward from the lower two sides of the lower cover, respectively. The connecting part of an external connector is engaged between the first connecting end and the second connecting end. A steering connecting pin passes through the outer end face of the first connecting end and through the connecting part of the external connector to the outer end face of the second connecting end, thereby realizing the connection between the external connector and the lower cover. The end of the steering connecting pin is inserted into the pin body by a screw, thereby realizing the limiting or locking of the steering connecting pin in the pin shaft direction.

[0009] Preferably, the head of the steering connecting pin is a pin cap, and a wave pad is engaged between the inner side of the pin cap and the outer end face of the first connecting end. The contact between the inner surface of the pin cap and the wave pad can be adjusted by rotating the screw at the other end.

[0010] Preferably, the screw head is a flange cap, and a convex hole ring is fitted between the inner side of the flange cap and the outer end face of the second connecting end, with one hole wall of the convex hole ring recessed to one side.

[0011] The beneficial effects of this invention are as follows: Compared to existing technologies, this invention uses an inclined insertion method instead of the traditional vertical alignment assembly, requiring less operating space. The elliptical niche provides ample operating space, allowing the pin to enter at a certain angle, making it particularly suitable for small clamps or applications with high-strength torsion springs. This significantly reduces assembly difficulty and solves the industry problem that "the smaller the clamp and the stronger the spring, the more difficult it is to install." Furthermore, the entry hole and the limiting lug are "positioned on the horizontal line," and the flared opening and the entry hole are "straight-line connected in space," forming a pre-set, precise guide path to prevent assembly misalignment. The pin end "falls from above the niche wall to below the niche wall" for self-positioning, ensuring accurate installation and effectively guaranteeing smooth clamp opening and closing. Moreover, the niche is a recessed structure "carved from the inside out," increasing the local wall thickness compared to the traditional through-hole design. The limiting lug uses a flared slot, both guiding the pin and providing support, solving the problem of thin walls and easy deformation under stress in traditional holes. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0013] Figure 1 yes Figure 1 A schematic diagram of the local structural decomposition from another angle; Figure 2 This is an exploded view of the structure when some parts are omitted in the implementation of this invention; Figure 3 This is a schematic diagram of a state during the implementation of the present invention; Figure 4 yes Figure 1 A schematic diagram of the structural state during further implementation.

[0014] 1. Upper clamp cover; 2. Lower clamp cover; 3. Torsion spring; 4. Shaft pin; 5. Shaft lug; 6. Limiting lug; 7. Limiting nut; 8. Screw; 9. Connecting part; 10. Steering connecting pin; 11. Through part; 12. Hook; 13. Through hole; 14. Limiting groove; 20. Screw; 21. First connecting end; 22. Second connecting end; 30. Wave washer; 31. Central space; 40. Protruding hole ring; 41. Shaft pin end; 51. Niche; 61. Slot; 81. Screw end; 101. Pin cap; 121. Inner side wall; 122. Side wall; 201. Flange cap. Detailed Implementation

[0015] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, that is, to provide numerous specific details in order to offer a more thorough understanding of the present invention. However, those skilled in the art will recognize that the present invention can be practiced without one or more of these details. In these examples, to avoid confusion with the present invention, some technical features well-known in the art have not been described.

[0016] It should be understood that the present invention can be implemented in different forms and should not be construed as being limited to the embodiments presented herein. Therefore, these are merely examples and should not be used to limit the scope of protection of the present invention.

[0017] Additionally, it should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0018] See Figures 1 to 4 The clamp connector consists of an upper clamp cover 1 and a lower clamp cover 2, through which a pin 4 holding a torsion spring 3 passes. One side of the upper clamp cover 1 or the lower clamp cover 2 is provided with an entry lug 5. The entry lug 5 has an elliptical niche 51 carved from the inside out. The elliptical space of the niche provides a accommodating and limiting area for the torsion spring, reducing repeated adjustments and improving assembly efficiency. Moreover, the niche is a recessed structure carved from the inside out, which increases the local wall thickness compared to the traditional through-hole design.

[0019] The upper niche wall of the niche 51 is provided with an entry hole 52 for the shaft pin to pass through the niche from the outer surface. The lower part of the niche wall 51 and the limiting lug 6 with a flared slot 61 on the other side are positioned on the horizontal line. The upper part of the flared opening of the limiting lug 6 slot 61 is connected to the entry hole 52 in a straight line in space. The limiting lug adopts a flared slot to both guide the shaft pin and provide support, which solves the problem of thin hole walls and easy deformation under force in traditional holes.

[0020] When the upper cover 1 or lower cover 2 is stacked inside and outside at the point through which the pin 4 passes, and the torsion spring 3 is placed in the through-path, the pin 4 is inclined through the inlet hole 52, through the through-part 11 of the upper cover 1 or lower cover 2 and the central space 31 of the torsion spring. The torsion spring is first placed in the through-path, and then the pin 4 passes through its central space 31, achieving positioning before locking. After the end 41 of the pin reaches the limiting lug 6, the end of the pin 4 falls from above the niche wall to below the niche wall, thus installing the upper cover 1 and the lower cover 2. During the installation process, the upper cover 1 and lower cover 2 are first stacked inside and outside at the point through which the pin 4 passes, and the torsion spring 3 is placed on the through-path, so that the two toggle arms of the torsion spring 3 abut against the inner side of the tail end of the upper cover 1 and the lower cover 2 respectively. Then, the pin 4 is inserted into the inlet hole 52 at an inclined position, and the pin 4 passes through the through-part 11 of the upper cover 1 or lower cover 2 and the central space 31 of the torsion spring 3 in sequence. When the front end of the pin 4 reaches the limiting lug 6, it is guided by the flared opening of the flared slot 61, and the end of the pin 4 falls smoothly from the top of the niche wall into the bottom of the niche wall, thus completing the axial limiting of the pin 4 and realizing the hinged installation of the upper clamp 1 and the lower clamp 2. This process avoids assembly misalignment and effectively ensures the smooth opening and closing of the clamp. In addition, the inclined insertion assembly method does not require vertical alignment of the pin hole, making it more convenient to operate in narrow spaces or on small clamps. Moreover, the elliptical niche 51 provides ample swing space for the pin 4, making it easy to adjust the insertion angle. At the same time, the concave structure of the niche 51 increases the local wall thickness of the insertion lug 5, improving the structural strength.

[0021] Furthermore, as an improvement to the present invention, a hook 12 is provided at the front end of the upper clamping cover 1, and a through hole 13 extending from the tail end to the front end is provided on the inner side of the hook 12; a limiting groove 14 for placing a limiting nut 7 is provided on the channel of the through hole 13. When a screw 8 is inserted into the through hole 13, it passes through the limiting nut 7. By rotating the screw 8, it can extend and retract into the hook 12 through the inner side wall 121 of the hook 12, thereby realizing the control of the distance between the screw end 81 and the other side wall 122 of the hook 12.

[0022] In this example, the hook 12 is a reinforced clamping structure that locks items with side edges after the upper and lower clamping covers 1 and 2 of the clamp hold the item. Specifically, by rotating the screw 8, the threaded engagement between the screw 8 and the limiting nut 7 causes the screw end 81 to move axially along the through hole 13 between the inner side wall 121 and the other side wall 122 of the hook 12. When the screw end 81 extends into the hook 12, the effective clamping distance between the two inner side walls 121 and 122 of the hook 12 decreases; when the screw end 81 retracts towards the tail end, the effective clamping distance increases. Thus, the user can finely adjust the size of the clamping opening of the hook 12 by rotating the screw 8 according to the thickness of the protruding or side-extending part of the clamped item, ensuring a stable clamping and avoiding the situation of traditional clamps that only rely on the upper and lower clamping covers 1 and 2 to hold the item, resulting in limited functionality and weak clamping.

[0023] Furthermore, as an improvement to the present invention, a first connecting end 21 and a second connecting end 22 extend downward from the lower sides of the lower cover 2, respectively. A connecting part 9 of an external connector is engaged between the first connecting end 21 and the second connecting end 22. A steering connecting pin 10 is inserted from the outer end face of the first connecting end 21 and passes through the connecting part 10 of the external connector to the outer end face of the second connecting end 22, thereby realizing the connection between the external connector and the lower cover 2. The end of the steering connecting pin 10 is inserted into the pin body by a screw 20, thereby realizing the limiting or locking of the steering connecting pin 10 in the pin axis direction.

[0024] The clamp can rotate relative to the external connector by means of the swivel connecting pin 10 passing through the first connecting end 21, the external connector, and the second connecting end 22, so as to adapt to different usage angles.

[0025] In this example, at the end of the steering connecting pin 10 (i.e., the end that protrudes from the outer end face of the second connecting end 22), a screw 20 is inserted axially into the pin body. The screw 20 engages with the internal thread at the end of the steering connecting pin 10 and is tightened, thereby limiting or locking the steering connecting pin 10 in the pin axis direction, preventing the steering connecting pin 10 from moving or falling off in the axial direction, and ensuring that the connection between the external connector and the lower clamp 2 is stable and reliable.

[0026] Furthermore, as an improvement to the present invention, the head of the steering connecting pin 10 is a pin cap 101, and a wave pad 30 is engaged between the inner side of the pin cap 101 and the outer end face of the first connecting end 21. By rotating the screw 20 at the other end, the contact between the inner surface of the pin cap 101 and the wave pad 30 can be adjusted to achieve tightness and pressure adjustment.

[0027] In this embodiment, when the screw 20 is tightened, the axial distance between the pin cap 101 and the first connecting end 21 decreases, the wave pad 30 is compressed and deformed, and the wave pad 30 generates a large elastic reaction force on the inner surface of the pin cap 101, thereby increasing the friction between the pin cap 101 and the outer end face of the first connecting end 21. This makes the external connector need to overcome greater resistance when rotating relative to the lower clamp 2, achieving tighter pressure adjustment. When the screw 20 is loosened appropriately, the compression of the wave pad 30 decreases, the elastic reaction force decreases, and the friction decreases accordingly. The external connector rotates more flexibly, achieving looser pressure adjustment. Thus, the user can adjust the tightness of the screw 20 according to actual usage needs to obtain appropriate steering damping, ensuring both angular stability of the external connector during use and rotational flexibility.

[0028] Furthermore, as an improvement to the present invention, the head of the screw 20 is a flange cap 201, and a convex hole ring 40 is fitted between the inner side of the flange cap 201 and the outer end face of the second connecting end 22, and the wall of the convex hole of the convex hole ring 40 is recessed to one side.

[0029] In this embodiment, the protruding ring 40 effectively prevents the screw 20 from rotating and loosening under vibration or repeated rotation conditions, ensuring that the limiting or locking state of the steering connecting pin 10 in the pin shaft direction is stable and reliable for a long time.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A device comprising an upper cover and a lower cover, wherein a pin with a torsion spring passes through the upper cover and the lower cover, characterized in that... One side of the upper or lower cover is provided with an entry lug. The entry lug has an elliptical niche carved from the inside out. The upper niche wall has an entry hole for the pin to pass through the niche from the outer surface. The lower part of the niche wall corresponds to the limiting lug with a flared slot on the other side on the horizontal line. The upper part of the flared opening of the limiting lug slot is spatially connected to the entry hole. When the upper or lower cover is stacked inside and outside by the part through which the pin passes and the torsion spring is placed in the passage, the pin passes obliquely through the entry hole, through the passage of the upper or lower cover and the center space of the torsion spring. After the end of the pin reaches the limiting lug, the end of the pin falls from above the niche wall to below the niche wall to realize the installation of the upper and lower cover.

2. The clip connector according to claim 1, characterized in that... The upper clamp is provided with a hook at the front end, and a through hole is provided on the inner side of the hook to the tail end and the front end. A limiting groove is provided on the through hole for placing a limiting nut. When a screw is inserted into the through hole, it passes through the limiting nut. By rotating the screw, it can extend and retract into the inner side wall of the hook, realizing the control of the distance between the screw end and the other side wall of the hook.

3. The clip connector according to claim 1, characterized in that... The lower cover has a first connecting end and a second connecting end extending downwards from its two lower sides, respectively. The connecting part of an external connector is engaged between the first connecting end and the second connecting end. A steering connecting pin is inserted from the outer end face of the first connecting end and passes through the connecting part of the external connector to the outer end face of the second connecting end, thereby realizing the connection between the external connector and the lower cover. The end of the steering connecting pin is inserted into the pin body by a screw, thereby realizing the limiting or locking of the steering connecting pin in the pin shaft direction.

4. The clip connector according to claim 3, characterized in that... The head of the steering connecting pin is a pin cap, and a wave pad is locked between the inner side of the pin cap and the outer end face of the first connecting end. The contact between the inner surface of the pin cap and the wave pad can be adjusted by rotating the screw at the other end.

5. The clip connector according to claim 3, characterized in that... The screw head is a flange cap, and a convex hole ring is fitted between the inner side of the flange cap and the outer end face of the second connecting end. The wall of the convex hole ring is recessed to one side.

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