Micro space rotating plunger fastening assembly

Abstract

The utility model discloses a miniature space rotating plunger fastening assembly which comprises a base mechanism, the base mechanism comprises a sliding limiting unit and a sleeve unit, and the sleeve unit is fixed at one end of the sliding limiting unit; the other end of the sliding limiting unit comprises a first step and a second step, and the first step and the second step are connected through a sliding groove. The periphery of the sleeve unit penetrates through and is fixed at the position of the through hole; an annular isolation part is arranged on the inner wall of the sleeve unit; the rotating mechanism comprises a nut and a pin, and the nut is fixed at one end of the pin; a buckle is arranged on the periphery of the nut and abuts against the end, away from the sleeve unit, of the sliding limiting unit. The pin is arranged in the sleeve unit in a penetrating mode, an annular protruding part is arranged at the other end of the pin, and the pin is sleeved with an elastic mechanism. According to the structure of the utility model, the copper nail can be clamped and stabilized through the elastic mechanism, so that the copper nail is prevented from loosening or displacing in the injection molding and mold closing processes.

Description

Technical Field

[0001] The utility model relates to a fastening assembly, in particular to a micro space rotating plunger fastening assembly. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] In the installation of existing server panels, it is necessary to pass pins through the through holes of the installation plate and the matching plate to achieve locking between the installation plate and the matching plate. The existing pins are generally traditional fixed pin structures. The hole-finding process before locking the matching plate is inconvenient, and manual installation is time-consuming and labor-intensive.

[0004] At the same time, some existing technologies use a manual handle, which controls the extension and retraction of the pin by rotating the handle, thereby releasing and locking the mounting plate and the matching plate. In some scenarios, since the space on the server panel is too small, human fingers cannot reach in and directly operate the handle, which causes great inconvenience in releasing and locking the mounting plate.

[0005] Currently, there is no micro-space rotary plunger fastening assembly that can solve the above problems. Utility Model Content

[0006] The utility model aims to provide a micro space rotary plunger fastening assembly, which can clamp a stable copper nail through an elastic mechanism to prevent the copper nail from loosening or displacement during injection molding and mold closing.

[0007] In order to achieve the above-mentioned purpose, the utility model discloses the following micro space rotary plunger fastening assembly, which is fixed on the through hole of the mounting plate; the micro space rotary plunger fastening assembly comprises:

[0008] A base mechanism, the base mechanism comprises a sliding limit unit and a sleeve unit, the sleeve unit is fixed to one end of the sliding limit unit; the other end of the sliding limit unit away from the sleeve unit comprises a first step and a second step with different axial heights, the first step and the second step are connected by a sliding groove; the outer periphery of the sleeve unit is penetrated and fixed at the position of the through hole; the inner wall of the sleeve unit is provided with an annular isolation portion;

[0009] A rotating mechanism, the rotating mechanism comprising a nut and a pin, the nut being fixed at one end of the pin; a buckle being provided on the outer periphery of the nut, the buckle being abutted against one end of the sliding limit unit away from the sleeve unit; the pin being inserted into the sleeve unit, the pin being provided with an annular convex portion at the other end away from the nut, an elastic mechanism being sleeved on the pin, one end of the elastic mechanism being abutted against the convex portion, and the other end of the elastic mechanism being abutted against the isolation portion;

[0010] Wherein, when the buckle abuts against the first step, the pin has a first state of extending to the outside of the sleeve unit and the through hole;

[0011] When the buckle abuts against the second step, the pin retracts to a second state inside the sleeve unit and the through hole;

[0012] The rotating mechanism can switch the pin between the first state and the second state by rotating, and during the rotation, the buckle slides along the slide groove between the first step and the second step.

[0013] Furthermore, the outer periphery of the sleeve unit is welded to the position of the through hole.

[0014] Further, the outer periphery of the sleeve unit includes an annular tooth portion and a groove adjacent to the tooth portion, and the radial dimension of the tooth portion is greater than the inner diameter of the through hole.

[0015] Furthermore, the outer periphery of the sleeve unit includes an annular support seat, the support seat abuts against the outer wall of the mounting plate at the outer periphery of the through hole, and the inner diameter of the through hole gradually increases from the support seat to a direction away from the support seat.

[0016] Furthermore, the buckle is made of plastic material, and the nut is made of metal material.

[0017] Furthermore, an angular difference between the first step and the second step along the axial direction is 90 degrees.

[0018] Furthermore, a concave screwdriver opening is provided at one end of the nut away from the pin.

[0019] Furthermore, the sliding limiting unit further comprises an integrally formed cover portion on a side away from the sleeve unit, so that the buckle is limited between the cover portion and the first step or the second step or the sliding groove.

[0020] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0021] 1. The micro-space rotary plunger fastening assembly of the utility model can respectively abut against the buckle on the outer periphery of the nut through the first step and the second step in the sliding limit unit. Due to the pin and the nut, with the help of rotating the nut, the buckle is displaced between the first step and the second step of the pin, which indirectly drives the pin to quickly move between the two axial heights, thereby realizing quick locking between the mounting plate and the matching plate in the micro-space.

[0022] 2. The buckle of the micro space rotary plunger fastening assembly of the utility model can be pre-set on the first step with a lower axial height during installation, and the pin is pre-pressed against the matching plate, and the pin is partially retracted inside the sleeve unit. When the pin is close to the corresponding hole position, the elastic mechanism directly drives the pin to be inserted into the hole of the matching plate and locks it. Compared with the mechanical structure of the traditional fixed pin, the installation is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a cross-sectional view of a locked state of a micro space rotary plunger fastening assembly provided in an embodiment of this specification;

[0025] Figure 2 It is an axonometric view of a micro space rotary plunger fastening assembly in a locked state provided in an embodiment of the present specification;

[0026] Figure 3 It is an axonometric diagram of a micro space rotary plunger fastening assembly in a released state provided in an embodiment of the present specification;

[0027] Figure 4 It is a cross-sectional view of a riveting type fixing structure of a micro space rotary plunger fastening assembly provided in an embodiment of this specification;

[0028] Figure 5 It is a cross-sectional view of a flip-rivet type fixing structure of a micro space rotary plunger fastening assembly provided in an embodiment of this specification;

[0029] Figure 6 It is a schematic diagram of a cover portion of a micro space rotary plunger fastening assembly provided in an embodiment of this specification;

[0030] Figure 7 It is a schematic diagram of a rotary sliding limit unit of a micro space rotary plunger fastening assembly provided in an embodiment of this specification;

[0031] In the figure: 100, mounting plate; 101, through hole; 200, matching plate; 1, base mechanism; 11, sliding limit unit; 111, first step; 112, second step; 113, slide groove; 114, cover; 12, sleeve unit; 121, isolation part; 122, toothed part; 123, groove; 124, support seat; 2, rotating mechanism; 21, nut; 211, screwdriver blade; 22, pin; 221, protrusion; 23, buckle; 24, elastic mechanism. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this specification.

[0033] In the description of the present utility model, it should be noted that the terms "upper", "middle", "lower", "inner", "outer", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following describes the implementation method of the present utility model based on its overall structure.

[0034] See also Figure 1-3 , is a micro space rotary plunger fastening assembly of this embodiment, fixed on the through hole 101 of the mounting plate 100; it includes:

[0035] The base mechanism 1 comprises a sliding limit unit 11 and a sleeve unit 12, wherein the sleeve unit 12 is fixed to one end of the sliding limit unit 11; the other end of the sliding limit unit 11 away from the sleeve unit 12 comprises a first step 111 and a second step 112 with different axial heights, wherein the first step 111 and the second step 112 are connected via a slide groove 113; the outer periphery of the sleeve unit 12 is penetrated and fixed at the position of the through hole 101; the inner wall of the sleeve unit 12 is provided with an annular isolation portion 121;

[0036] The rotating mechanism 2 includes a nut 21 and a pin 22, wherein the nut 21 is fixed to one end of the pin 22; a buckle 23 is provided on the outer periphery of the nut 21, and the buckle 23 abuts against one end of the sliding limit unit 11 away from the sleeve unit 12; the pin 22 is inserted into the sleeve unit 12, and an annular protrusion 221 is provided at the other end of the pin 22 away from the nut 21, and an elastic mechanism 24 is sleeved on the pin 22, and one end of the elastic mechanism 24 abuts against the protrusion 221, and the other end of the elastic mechanism 24 abuts against the isolation portion 121;

[0037] When the buckle 23 abuts against the first step 111, the pin 22 extends to the outside of the sleeve unit 12 and the through hole 101 in the first state;

[0038] When the buckle 23 abuts against the second step 112 , the pin 22 retracts to the second state inside the sleeve unit 12 and the through hole 101 ;

[0039] The rotating mechanism 2 can switch the pin 22 between the first state and the second state by rotating. When rotating, the buckle 23 slides along the slide groove 113 between the first step 111 and the second step 112 .

[0040] Through the above structure, when in use, after the base mechanism 1 in this embodiment is fixed at the position of the through hole 101 of the mounting plate 100, the staff rotates the nut 21 from the second step 112 or the slide groove 113 to the axially lower first step 111 through an external tool. At this time, since the elastic mechanism 24 is sleeved outside the pin 22, in the cavity between the pin 22 and the sleeve unit 12, and one end of the elastic mechanism 24 abuts against the protrusion 221, and the other end of the elastic mechanism 24 abuts against the isolation portion 121, since the nut 21 drives the pin 22 to move downward, the axial length of the cavity between the protrusion 221 and the isolation portion 121 becomes longer, that is, the space for accommodating the elastic mechanism 24 becomes longer, and at this time the elastic mechanism 24 changes from a tense state to a relaxed state, and the pin 22 extends axially to the outside of the sleeve unit 12, and also extends to the outside of the through hole 101 of the mounting plate 100, and is now in a state to be installed. In the state to be installed, the staff first puts the mounting plate 100 and the matching plate 200 against each other, and the pin 22 extends to the outside of the through hole 101 of the mounting plate 100 and abuts against one side of the matching plate 200, and then continues to calibrate the position until the pin 22 is close to the hole position on the matching plate 200, and the pin 22 relies on the elastic potential energy of the elastic mechanism 24 to push the pin 22 itself into the hole position of the matching plate 200. By analogy, until all the pins 22 are completely pushed into the holes of the matching plate 200, the alignment operation of the mounting plate 100 and the matching plate 200 can be achieved, and the locking of the mounting plate 100 and the matching plate 200 is achieved.

[0041] Similarly, when release is required, the staff can use external tools to rotate the nut 21 from the first step 111 or the slide groove 113 to the axially higher second step 112. At this time, the nut 21 drives the pin 22 to move upward until the pin 22 is fully inserted into the through hole 101 of the mounting plate 100 and the interior of the sleeve unit 12. As a result, the pin 22 is separated from the matching plate 200, the limit between the mounting plate 100 and the matching plate 200 disappears, and finally the released state is achieved.

[0042] In the above process, since the present embodiment includes two first steps 111 and second steps 112 for clamping the buckle 23, and with the help of the elastic force of the elastic mechanism 24 and the slide groove 113, the buckle 23 can easily switch between the first step 111 and the second step 112, and only needs to directly apply torque to the nut 21. Compared with the traditional handle-type adjustment, it is more suitable for operation in a micro space. At the same time, in the process of locking the mounting plate 100 and the matching plate 200, the buckle 23 can be pre-clamped on the first step 111 with a lower axial height, and with the help of the elastic force of the elastic mechanism 24, the matching plate 200 partially abuts and retracts the pin 22. After the position of the pin 22 is corrected to the hole position of the matching plate 200, the pin 22 can be directly inserted into the hole position of the matching plate 200, which greatly improves the convenience of docking.

[0043] Furthermore, if Figure 1 As shown, in this embodiment, two buckles 23 are provided on the circumferential wall surface of the nut 21. Specifically, the angle between the two buckles 23 is 180 degrees, and the sliding limit unit 11 also includes two groups of first steps 111, second steps 112 and slide grooves 113 respectively matching the two buckles 23, so that the rotation of the rotating mechanism 2 caused by the two buckles 23 abutting on the base mechanism 1 is more balanced and stable than that of a single buckle 23.

[0044] Of course, in another embodiment, the circumferential wall surface of the nut 21 may include more groups of buckles 23 to achieve a more stable rotation effect of the rotating mechanism 2, but the production cost will also be higher.

[0045] Furthermore, in this embodiment, the tension and relaxation of the elastic mechanism 24 are relatively tight and relatively relaxed. In fact, when the buckle 23 abuts against any position in the sliding limit unit 11, the elastic mechanism 24 always remains in a compressed state to ensure the stability of the rotating mechanism 2.

[0046] Furthermore, if Figure 1 As shown, the outer periphery of the sleeve unit 12 is welded to the position of the through hole 101. The base mechanism 1 and the mounting plate 100 are fixedly connected by welding, and the structural strength is high and can withstand a large load.

[0047] Furthermore, if Figure 4 As shown, the outer periphery of the sleeve unit 12 includes an annular flower tooth portion 122 and a groove 123 adjacent to the flower tooth portion 122, and the radial dimension of the flower tooth portion 122 is greater than the inner diameter of the through hole 101. Specifically, when installing the sleeve unit 12 on the mounting plate 100, firstly, a part of the sleeve unit 12 is buried in the through hole 101 along the axial direction, and the flower tooth portion 122 is abutted against a side wall of the mounting plate 100, and the specific abutting position is a circle around the outer periphery of the through hole 101, and then force is continuously applied along the axial direction, so that a circle of metal around the outer periphery of the through hole 101 is squeezed into the groove 123 by the flower tooth portion 122, and finally the sleeve unit 12 is riveted to the mounting plate 100. The above-mentioned riveting connection method has good applicability to thin-walled surfaces.

[0048] Further, as shown in the figure, the outer periphery of the sleeve unit 12 includes an annular support seat 124, and the support seat 124 abuts against the outer wall of the mounting plate 100 at the outer periphery of the through hole 101, and the inner diameter of the through hole 100 gradually increases from the support seat 124 to the direction away from the support seat 124. Specifically, through the inner wall of the through hole 101 with a gradually increasing inner diameter, when the sleeve unit 12 needs to be fixed, the support seat 124 is pressed against one side of the mounting plate 100, and then the riveting tool is inserted into the sleeve unit 12, and the sleeve unit 12 is squeezed to apply an outward expansion force until the annular area of ​​the sleeve unit 12 inserted into the through hole 101 is completely in contact with the wall surface of the through hole 101, and finally the sleeve unit 12 is riveted to the mounting plate 100. The above-mentioned riveting connection method is more reliable and has a lower process cost than welding.

[0049] Of course, in some other embodiments, the connection method between the sleeve unit 12 and the mounting plate 100, in addition to the above-mentioned riveting and flip riveting, includes but is not limited to welding, snap-on, bonding, magnetic attraction or threaded locking and other methods. As long as the relative limitation or fixation with a certain strength between the sleeve unit 12 and the mounting plate 100 can be achieved, the function of the utility model can be achieved, and it can be flexibly set according to the actual installation strength and cost requirements.

[0050] Furthermore, the buckle 23 is made of plastic material, and the nut 21 is made of metal material. Specifically, the sliding limit unit 11 is also made of plastic material, which has a lower friction coefficient and is more convenient for the rotation displacement of the rotating mechanism 2. The nut 21 is made of metal material as the main body to ensure its structural strength.

[0051] Furthermore, the angular difference between the first step and the second step along the axial direction is 90 degrees. That is to say, in this embodiment, by rotating the rotating mechanism 2 by 90 degrees, the pin 22 in this embodiment can be quickly switched between the two states of locking and releasing.

[0052] Furthermore, a concave screwdriver opening 211 is provided at one end of the nut 21 away from the pin 22, so that torque can be easily applied to the nut 21 by conventional tools. Specifically, the screwdriver opening 211 can be set to a conventional cross-shaped, straight-shaped or plum-shaped, and in this embodiment, it is a cross-shaped. Of course, the screwdriver opening 211 in some other embodiments includes but is not limited to a cross-shaped, straight-shaped, plum-shaped, hexagonal star-shaped, hexagonal, square, three-wing, etc., and can be uniformly set according to actual processing and installation requirements, and the cross-shaped, straight-shaped or plum-shaped in this embodiment are more conventional and easy to match.

[0053] Furthermore, if Figure 6 As shown, the side of the sliding limit unit 11 away from the sleeve unit 12 further includes an integrally formed cover portion 114, so that the buckle 23 is limited between the cover portion 114 and the first step 111 or the second step 112 or the slide groove 113. Specifically, the limit of the buckle 23 by the cover portion 114 makes the active area of ​​the buckle 23 limited to the limited space above the sliding limit unit 11, avoiding the abnormal retraction of the column pin 22 under special circumstances.

[0054] Furthermore, if Figure 7 As shown, the first step 111 is set at the bottom of the sliding limit unit 11, and the second step 112 is set at the top of the sliding limit unit 11. In this embodiment, the installation or retraction operation of the column pin 22 can be achieved by rotating the buckle 23 by half a circle of 180 degrees. Of course, in some other embodiments, the first step 111 and the second step 112 with different angle differences can be set according to actual needs, including but not limited to a rotation angle of 180 degrees, 90 degrees or less, as long as the first step 111 and the second step 112 have a corresponding height difference that meets the preset height difference. At the same time, it is worth noting that in some embodiments, the sliding limit unit 11 and the buckle 23 can be set to a variety of materials such as plastic, rubber, metal, or even a structure connected in one piece, as long as the buckle 23 can be able to move up and down under the limit of the sliding limit unit 11, and drive the column pin 22 to achieve telescopic movement, which does not deviate from the structural form of the utility model.

[0055] Although different specific embodiments are mentioned in the content of this application, this application is not limited to the situations described in the industry standards or embodiments, etc. Some industry standards or slightly modified implementation plans based on the implementation of the custom methods or embodiments can also achieve the same, equivalent or similar, or predictable implementation effects after deformation of the above embodiments. The embodiments of data acquisition, processing, output, judgment methods, etc. after these modifications or deformations can still fall within the scope of the optional implementation plans of this application.

[0056] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and changes to the present application without departing from the spirit of the present application. It is intended that the attached embodiments include these modifications and changes without departing from the present application.

Claims

1. A micro space rotary plunger fastening assembly, fixed on a through hole of a mounting plate; characterized in that: The micro space rotary plunger fastening assembly comprises: A base mechanism, the base mechanism comprises a sliding limit unit and a sleeve unit, the sleeve unit is fixed to one end of the sliding limit unit; the other end of the sliding limit unit away from the sleeve unit comprises a first step and a second step with different axial heights, the first step and the second step are connected by a sliding groove; the outer periphery of the sleeve unit is penetrated and fixed at the position of the through hole; the inner wall of the sleeve unit is provided with an annular isolation portion; A rotating mechanism, the rotating mechanism comprising a nut and a pin, the nut being fixed at one end of the pin; a buckle being provided on the outer periphery of the nut, the buckle being abutted against one end of the sliding limit unit away from the sleeve unit; the pin being inserted into the sleeve unit, the pin being provided with an annular convex portion at the other end away from the nut, an elastic mechanism being sleeved on the pin, one end of the elastic mechanism being abutted against the convex portion, and the other end of the elastic mechanism being abutted against the isolation portion; Wherein, when the buckle abuts against the first step, the pin has a first state of extending to the outside of the sleeve unit and the through hole; When the buckle abuts against the second step, the pin has a second state of being retracted to the inside of the sleeve unit and the through hole; The rotating mechanism can switch the pin between the first state and the second state by rotating, and during the rotation, the buckle slides along the sliding groove between the first step and the second step.

2. The micro space rotary plunger fastening assembly according to claim 1, characterized in that: The outer periphery of the sleeve unit is welded to the position of the through hole.

3. The micro space rotary plunger fastening assembly according to claim 1, characterized in that: The outer circumference of the sleeve unit includes an annular tooth portion and a groove adjacent to the tooth portion, and the radial dimension of the tooth portion is greater than the inner diameter of the through hole.

4. The micro space rotary plunger fastening assembly according to claim 1, characterized in that: The outer periphery of the sleeve unit includes an annular support seat, and the support seat abuts against the outer wall of the mounting plate at the outer periphery of the through hole. The inner diameter of the through hole gradually increases from the support seat to a direction away from the support seat.

5. The micro space rotary plunger fastening assembly according to claim 1, characterized in that: The buckle is made of plastic material, and the nut is made of metal material.

6. The micro space rotary plunger fastening assembly according to claim 1, characterized in that: An angular difference between the first step and the second step along the axial direction is 90 degrees.

7. The micro space rotary plunger fastening assembly according to claim 1, characterized in that: An end of the nut away from the pin is provided with a concave screwdriver opening.

8. The micro space rotary plunger fastening assembly according to claim 1, characterized in that: The sliding limiting unit further includes an integrally formed cover portion on a side away from the sleeve unit, so that the buckle is limited between the cover portion and the first step or the second step or the sliding groove.

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