Metal clamping piece with novel clamping thorns and clamping connecting assembly
By setting asymmetrical spurs on the insertion arm of the metal retainer, the staggered design applies unbalanced force, which solves the problem of easy insertion of the insert and improves the reliability of the connection, especially effectively locking the insert in a vibration environment.
Patent Information
- Application Number
- CN202520537832.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-03-26
AI Technical Summary
The symmetrical arrangement of the spiking structure in existing metal retainers makes it easy for the insert to detach from the retainer during long-term use, resulting in insufficient connection reliability.
Design a metal retainer with novel serrated spikes. The spikes on the insertion arm are asymmetrically arranged and misaligned in the vertical direction, applying uneven force to twist the insert and prevent it from being pulled out.
It improves the locking effect of the insert under dynamic load scenarios, effectively prevents the insert from loosening, and enhances the reliability of the connection.
Smart Images
Figure CN223690090U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to card holds connecting piece technical field especially, a kind of metal card holder with new card thorn and card holds connection assembly. BACKGROUND
[0002] In many fields such as automobile assembly, electronic equipment assembly, furniture manufacturing, card holding connecting piece is widely used to fix two or more components together as an important connecting component. Among them, metal card holder plays an important role in occasions that need to bear certain external force or ensure connection stability due to its high strength, aging resistance and other excellent characteristics.
[0003] The existing metal card holder is usually provided with a card thorn structure for cooperation with the insert piece to prevent the insert piece from being pulled out of the card holder, thereby realizing card holding connection. Common card thorn structures are usually symmetrically arranged, that is, the card thorns on the plug-in arms of both sides of the card holder correspond to each other in shape, size and position. The symmetrically arranged card thorn structure can meet the basic card holding requirements to some extent, but there are some deficiencies in actual application. Under the symmetric card thorn structure, the force on the insert piece is single, and the resultant force direction of the symmetric card thorns on the insert piece is usually consistent with the insertion direction of the insert piece. However, for the components connected by the metal card holder, the force on the insert piece during use is usually consistent with the pulling-out direction of the insert piece, so that during long-term use, the insert piece has the risk of gradually overcoming the limitation of the card thorn and being pulled out of the metal card holder, resulting in connection failure.
[0004] Therefore, it is necessary to provide a technical scheme to overcome the deficiencies of the prior art. INVENTION CONTENTS
[0005] The utility model discloses a metal card holder with a new card thorn to overcome the defects of the prior art, which can improve the connection reliability.
[0006] The utility model discloses a metal card holder with a new card thorn, which can be installed into a plug-in hole to be card held with an insert piece inserted into the plug-in hole. The metal card holder includes a base plate, a pair of mounting elastic arms extending upward and outward from opposite sides of the base plate, and a pair of plug-in arms extending upward from opposite sides of the base plate. The mounting elastic arms are used to abut and cooperate with the opposite side walls of the plug-in hole to limit the metal card holder in the plug-in hole. The plug-in arms form an insertion space for the insert piece to be inserted, and the card thorns on the plug-in arms protrude into the insertion space to prevent the insert piece from being pulled out upward. The card thorns on the pair of plug-in arms are asymmetrically arranged.
[0007] As a further improved technical solution, the upper and lower clamping hooks are staggered in the up-down direction.
[0008] As a further improved technical solution, the upper surface of the upper clamping hook intersects with the lower clamping hook.
[0009] As a further improved technical solution, the distance by which the upper clamping hook protrudes beyond the plug-in arm is less than the distance by which the lower clamping hook protrudes beyond the plug-in arm.
[0010] As a further improved technical solution, at least two clamping hooks are provided on each plug-in arm, and the at least two clamping hooks are arranged on the two longitudinal edges of the plug-in arm.
[0011] As a further improved technical solution, an insertion guide portion is arranged on the upper end of each plug-in arm and extends outwardly and obliquely.
[0012] As a further improved technical solution, the pair of mounting arms sequentially comprises, from bottom to top, a mounting guide portion extending outwardly and obliquely, a backfolding portion extending inwardly and obliquely from the upper end of the mounting guide portion, and an opening guide portion extending outwardly and obliquely from the upper end of the backfolding portion, a limiting protrusion is formed between the mounting guide portion and the backfolding portion and is outwardly convex in an arc shape, and a guide protrusion is formed between the backfolding portion and the opening guide portion and is inwardly convex in an arc shape.
[0013] As a further improved technical solution, the mounting arms are in the shape of a frame, the middle part of each mounting arm has a punching hole, and the plug-in arm is made of a metal sheet punched by the punching hole.
[0014] As a further improved technical solution, the height of the plug-in arm is less than the height of the punching hole.
[0015] The utility model also realizes the following technical scheme: a clamping connecting assembly, comprising a plug-in plate provided with a plug-in hole, a metal clamping piece installed in the plug-in hole by pressing, and an insertion piece inserted into the plug-in hole and clamped and connected by the metal clamping piece, wherein the metal clamping piece is the metal clamping piece with the novel clamping hook.
[0016] The metal clamping piece with the novel clamping spike has the clamping spike on the plug-in arm, the clamping spike on the pair of plug-in arms is asymmetrically arranged, and the force applied by the clamping spike on the plug-in part is an unbalanced force, the unbalanced force has a tendency to twist the plug-in part, that is, the resultant force applied by the clamping spike on the plug-in part is not consistent with the plug-in direction of the plug-in part, in this way, the movement of the plug-in part in the pulling-out direction opposite to the plug-in direction can be well limited, so that the plug-in part can be better locked, especially in a dynamic load use scene such as a vibration environment, and the plug-in part can be effectively prevented from loosening. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a perspective view of one embodiment of the metal clamping piece of the utility model.
[0018] Figure 2 is another perspective view of one embodiment of the metal clamping piece of the utility model.
[0019] Figure 3 is a side view of one embodiment of the metal clamping piece of the utility model.
[0020] Figure 4 is another side view of one embodiment of the metal clamping piece of the utility model.
[0021] Figure 5 is a cooperation schematic view of the metal clamping piece of the utility model and the plug-in hole and the plug-in part.
[0022] The signs are as follows: 100-metal clamping piece; 1-base plate part; 2-mounting elastic arm; 20-punching hole; 21-mounting guide part; 212-limiting convex part; 22-reflex part; 223-guide convex part; 23-opening guide part; 3-plug-in arm; 30-plug-in space; 31-first clamping spike; 32-second clamping spike; 33-plug-in guide part; 5-plug-in hole; 6-plug-in part. DETAILED DESCRIPTION
[0023] In order to have a clearer understanding of the technical features, objects and effects of the utility model, the specific implementation manners of the utility model will be described in detail with reference to the drawings.
[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0025] Please refer to Figures 1 to 5The utility model discloses a metal card holder 100 with novel card thorn. The metal card holder 100 with novel card thorn can be installed into the plug-in hole 5 to be held with the plug-in piece 6 inserted into the plug-in hole 5. The metal card holder 100 includes a base plate part 1, a pair of installation elastic arms 2 extending upward and outward from the opposite two sides of the base plate part 1, and a pair of plug-in arms 3 extending upward from the opposite two sides of the base plate part 1. The pair of installation elastic arms 2 are used to abut with the opposite two side walls of the plug-in hole 5 to limit the metal card holder 100 in the plug-in hole 5. The pair of plug-in arms 3 form a plug-in space 30 for the plug-in piece 6 to be inserted. The plug-in arms 3 are provided with card thorns protruding into the plug-in space 30 to prevent the plug-in piece 6 from being pulled out upward, and the card thorns on the pair of plug-in arms 3 are asymmetrically arranged.
[0026] The metal card holder 100 with novel card thorn provided by the utility model is provided with the card thorns on the plug-in arms 3 protruding into the plug-in space 30 to prevent the plug-in piece 6 from being pulled out upward, and the card thorns on the pair of plug-in arms 3 are asymmetrically arranged, so that the force of the card thorns on the plug-in piece 6 is an unbalanced force, the unbalanced force has a tendency to twist the plug-in piece 6, that is, the resultant force of the card thorns on the plug-in piece 6 is not consistent with the plug-in and pull-out direction of the plug-in piece 6, so that the movement of the plug-in piece 6 in the pull-out direction opposite to the plug-in direction is limited, so that the plug-in piece 6 can be better locked, especially in the dynamic load use scene such as vibration environment, and the plug-in piece 6 is effectively prevented from loosening.
[0027] The base plate part 1 provides connection for the installation elastic arms 2 and the plug-in arms 3. In the embodiment, the base plate part 1 is the bottom of the whole metal card holder 100, and when the plug-in piece 6 is inserted into the metal card holder 100, the plug-in piece 6 touches the base plate part 1 to be the limit position of insertion. The pair of installation elastic arms 2 extend upward and outward from the opposite two sides of the base plate part 1, and the pair of installation elastic arms 2 are used to abut with the opposite two side walls of the plug-in hole 5 to limit the metal card holder 100 in the plug-in hole 5. The pair of plug-in arms 3 extend upward from the opposite two sides of the base plate part 1, and the plug-in space 30 for the plug-in piece 6 to be inserted is formed between the pair of plug-in arms 3. The plug-in arms 3 are provided with the card thorns protruding into the plug-in space 30 to prevent the plug-in piece 6 from being pulled out upward, and the card thorns on the pair of plug-in arms 3 are asymmetrically arranged.
[0028] Please refer to Figure 3 and Figure 4As shown, the prongs on the pair of insertion arms 3 are asymmetrically arranged. The asymmetrical arrangement includes any difference in position, shape, size, number, etc., which ultimately results in different contact points and force conditions of the prongs with the insert 6 than in a symmetric prong structure. In this embodiment, the prongs are staggered in the up-down direction. When the insert 6 is inserted into the insertion space 30, the upper prong and the lower prong will respectively exert different forces on the insert 6. Due to the staggering of the prongs, when the insert 6 is subjected to an upward pulling force along the extension direction of the insertion space 30, the restraining effect of the upper and lower prongs on the insert 6 is no longer balanced as in a symmetric prong, and it has a torsional force that causes the insert 6 to deflect away from the extension direction of the insertion space 30. This unbalanced force makes the insert 6 need to overcome greater resistance during pulling out, thereby improving the reliability of the clamping connection.
[0029] In this embodiment, the prongs include a first prong 31 provided on one of the pair of insertion arms 3 and a second prong 32 provided on the other, and the first prong 31 is located below the second prong 32. The extension line of the upper surface of the upper prong, i.e. the second prong 32, intersects the lower prong, i.e. the first prong 31. This arrangement keeps the up-down staggering distance of the first prong 31 and the second prong 32 within a suitable range, avoiding too small a staggering distance that makes little difference from a symmetric design, and avoiding too large a staggering distance that causes the two prongs to be too far apart, resulting in too dispersed clamping force and causing the insert 6 to significantly deflect. The above structure design makes the position of the insert 6 in the insertion space 30 more stable. When the insert 6 is subjected to an external force, the intersection structure of the upper surface extension line of the upper prong and the lower prong will generate a lateral restraining force on the insert 6, preventing the insert 6 from shaking or shifting in the insertion space 30. Further, in this embodiment, the distance by which the upper prong, i.e. the second prong 32, protrudes beyond the insertion arm 3 on which it is located is less than the distance by which the lower prong, i.e. the first prong 31, protrudes beyond the insertion arm 3 on which it is located. This difference in protrusion distance makes the blocking effect of the lower prong on the insert 6 stronger, and when the insert 6 is in a direction parallel to the insertion space 30, the insert 6 interferes with the first prong 31 more, making the insertion of the insert 6 more reliable at a position closer to the lower side. Thus, when the insert 6 is subjected to an upward pulling force, the lower prong, due to its longer protrusion distance, can more effectively prevent the insert 6 from being pulled out. Although the upper prong has a slightly shorter protrusion distance, it cooperates with the lower prong to form an asymmetric clamping structure, further improving the stability of the clamping connection. Please refer to Figures 1 to 4As shown, in the present embodiment, at least two clamping spikes are arranged on each of the plug-in arms 3, and the clamping spikes are arranged on the two longitudinal edges of the plug-in arms 3. The arrangement of multiple clamping spikes can increase the contact points between the clamping spikes and the insert 6, and the multiple clamping spikes can jointly prevent the insert 6 from being pulled out of the plug-in space 30, thereby improving the reliability of the clamping connection. Moreover, the clamping spikes are arranged on the longitudinal edges of the plug-in arms 3, which are easy to be formed by punching.
[0030] As shown in FIG. 1, the metal clamping piece 100 comprises a pair of plug-in arms 3 and a pair of installation elastic arms 2. The plug-in arms 3 are arranged on the two sides of the metal clamping piece 100, and the installation elastic arms 2 are arranged on the upper end of the metal clamping piece 100. Figure 1 As shown, in the present embodiment, the upper end of each of the plug-in arms 3 is provided with an outwardly inclined insertion guide portion 33. The insertion guide portion 33 plays a guiding role when the insert 6 is inserted into the plug-in space 30, so that the insert 6 can more smoothly enter the plug-in space 30. When the insert 6 approaches the plug-in space 30, the inclined surface of the insertion guide portion 33 will contact the insert 6 and guide the insert 6 to be inserted in the correct direction. In this way, the insert 6 can be prevented from being jammed or damaged during insertion, and the installation efficiency is improved.
[0031] As shown in FIG. 1, the metal clamping piece 100 comprises a pair of plug-in arms 3 and a pair of installation elastic arms 2. The plug-in arms 3 are arranged on the two sides of the metal clamping piece 100, and the installation elastic arms 2 are arranged on the upper end of the metal clamping piece 100. Figure 1 As shown, in the present embodiment, the pair of installation elastic arms 2 comprises, from bottom to top, an outwardly inclined installation guide portion 21, an inwardly inclined folding portion 22 extending from the upper end of the installation guide portion 21, and an outwardly inclined opening guide portion 23 extending from the upper end of the folding portion 22. The installation guide portion 21 plays a guiding role when the metal clamping piece 100 is installed into the plug-in hole 5, so that the installation elastic arm 2 can smoothly enter the plug-in hole 5. The design of the folding portion 22 can increase the elasticity of the installation elastic arm 2, and form an arc-shaped outward protruding limiting protrusion 212 between the installation guide portion 21 and the folding portion 22, so as to abut against the bottom of the plug-in hole 5 when the metal clamping piece 100 is installed in place in the plug-in hole 5, thereby preventing the metal clamping piece 100 from being easily pulled out of the plug-in hole 5. Figure 5 As shown, the opening guide portion 23 and the folding portion 22 form an arc-shaped inward protruding guide protrusion 223. The arrangement of the opening guide portion 23 and the guide protrusion 223 can avoid the edge of the upper end of the metal clamping piece 100 being too exposed in the installation position, thereby reducing the risk of the insert 6 being jammed or scratched by the edge of the upper end of the metal clamping piece 100.
[0032] In the embodiment, the mounting elastic arms 2 are in frame shape, and each of the mounting elastic arms 2 has a punched hole 20 in the middle. The insertion arms 3 are processed from the metal sheet punched out of the punched hole 20. The frame shape and the design of the punched hole 20 can reduce the weight of the metal holder 100 without affecting the strength and elasticity of the metal holder 100. Meanwhile, the insertion arms 3 processed from the metal sheet punched out of the punched hole 20 can make full use of the material, reduce waste, and ensure the connection strength and stability between the insertion arms 3 and the mounting elastic arms 2. In the embodiment, the height of the insertion arms 3 is less than the height of the punched hole 20. The design can make the insertion arms 3 have sufficient strength and avoid the insertion arms 3 being too long and flexible, which can reduce the insertion limiting effect. In the forming process, the middle part of the mounting elastic arm 2 is punched to have a bottom edge connected and the other three edges disconnected, a part of the upper part of the middle part is removed, and then the remaining part of the middle part is processed to form the insertion arm 3.
[0033] Please refer to Figure 5 The utility model also provides a carding connection assembly, the carding connection assembly includes the plug-in board who sets up the plug-in hole 5, the metal holder 100 is installed in the plug-in hole 5 by pressing plug, and the insertion piece 6 is inserted in the plug-in hole 5 to be held by the metal holder 100 and is connected.
[0034] The metal holder 100 is installed in the plug-in hole 5 by pressing plug. In the installation process, the installation guide part 21 of the mounting elastic arm 2 first contacts with the side wall of the plug-in hole 5 and guides the metal holder 100 to enter the plug-in hole 5. With the continuous deepening of the metal holder 100, the mounting elastic arm 2 is elastically deformed, and when the limiting convex part 212 on the mounting elastic arm 2 slides through the side wall surface of the plug-in hole 5 and moves to the lower part of the plug-in hole 5, the metal holder 100 is installed in place, and at this time, the backfolding part 22 of the mounting elastic arm 2 rebounds outward and is clamped in the plug-in hole 5.
[0035] When the insert 6 is inserted into the metal clamping piece 100, the insertion guide 33 on the insertion arm 3 guides the insert 6 to smoothly enter the insertion space 30. During the insertion of the insert 6, the thorn on the insertion arm 3 contacts the insert 6 and prevents the insert 6 from being pulled out upward, thereby realizing the clamping connection of the metal clamping piece 100 and the insert 6. Since the thorns on the pair of insertion arms 3 are asymmetrically arranged, the force exerted by the thorns on the insert 6 is an unbalanced force, which has a tendency to twist the insert 6, that is, the resultant force exerted by the thorns on the insert 6 is not consistent with the insertion direction of the insert 6, so that the movement of the insert 6 in the pulling-out direction opposite to the insertion direction is limited. The metal clamping piece 100 provided by the utility model is especially suitable for the installation of automobile parts, because the automobile is often in a vibrating environment during driving. The above structure provided by the utility model can better lock the insert 6 and effectively prevent the insert 6 from loosening under dynamic load use scenarios such as vibration environment.
[0036] The utility model is explained through several specific embodiments, and those skilled in the art should understand that various transformations and equivalent substitutions can be made to the utility model without departing from the scope of the utility model. In addition, various modifications can be made to the utility model for specific situations or specific conditions without departing from the scope of the utility model. Therefore, the utility model is not limited to the disclosed specific embodiments, but should include all the embodiments falling within the scope of the claims of the utility model.
Claims
1. A metal card holder having a new type of card spike, which is mountable into a mounting hole (5) for card holding cooperation with an insert (6) inserted into the mounting hole (5), characterized in that, The metal clamping piece (100) comprises a base plate part (1), a pair of mounting elastic arms (2) extending upward and outward from opposite sides of the base plate part (1), and a pair of insertion arms (3) extending upward from opposite sides of the base plate part (1), the pair of mounting elastic arms (2) are used to abut and match with opposite side walls of the insertion hole (5) to limit the metal clamping piece (100) in the insertion hole (5), the pair of insertion arms (3) form an insertion space (30) for the insertion piece (6) to be inserted, wherein the insertion arms (3) are provided with clamping spikes protruding into the insertion space (30) to prevent the insertion piece (6) from being pulled out upward, the clamping spikes on the pair of insertion arms (3) are asymmetrically arranged.
2. The metal card holder with a new type of card spike according to claim 1, characterized in that, The clamping spikes on the pair of insertion arms (3) are arranged in a staggered manner in the up-down direction.
3. The metal card holder with a new type of card spike according to claim 2, characterized in that, An extension line of the upper surface of the upper clamping spike intersects with the lower clamping spike.
4. The metal card holder with a new type of card spike according to claim 2, characterized in that, The distance by which the upper clamping spike protrudes beyond the insertion arm (3) is less than the distance by which the lower clamping spike protrudes beyond the insertion arm (3).
5. The metal card holder with a new type of card spike according to any one of claims 1 to 4, characterized in that, Each of the insertion arms (3) is provided with at least two clamping spikes arranged on two longitudinal edges of the insertion arm (3).
6. The metal card holder with a new type of card spike as claimed in claim 5, characterized in that, The upper end of each of the insertion arms (3) is provided with an insertion guide part (33) extending outwardly and obliquely.
7. The metal card holder with a new type of card spike according to any one of claims 1 to 4, characterized in that, The pair of mounting elastic arms (2) comprises, in sequence from bottom to top, a mounting guide part (21) extending outwardly and obliquely, a backfolding part (22) extending inwardly and obliquely from the upper end of the mounting guide part (21), and an opening guide part (23) extending outwardly and obliquely from the upper end of the backfolding part (22), the mounting guide part (21) and the backfolding part (22) form a limiting convex part (212) which is outwardly and arcuately convex, and the backfolding part (22) and the opening guide part (23) form a guide convex part (223) which is inwardly and arcuately convex.
8. The metal card holder with a new type of card spike according to claim 1, characterized in that, The mounting elastic arms (2) are frame-shaped, and each of the mounting elastic arms (2) has a punching hole (20) in the middle part, and the insertion arms (3) are processed from a metal sheet which is punched in the punching hole (20).
9. The metal card holder with a new type of card spike according to claim 8, characterized in that, The height of the insertion arms (3) is less than the height of the punching hole (20).
10. A card retention connector assembly, characterized by, The insertion hole (5) is arranged on an insertion plate, a metal clamping piece (100) is arranged in the insertion hole (5) by pressing, and an insertion piece (6) is arranged in the insertion hole (5) to be clamped and connected by the metal clamping piece (100), wherein the metal clamping piece (100) is the metal clamping piece with the novel clamping spike according to any one of claims 1 to 9.