Spacing bolt

Abstract

The utility model discloses a spacing bolt which is used for connecting a top plate and a bottom plate, the top plate comprises a first hole, and the bottom plate comprises a second hole. The structure comprises a body which extends in the axial direction; the spacing mechanism is arranged at one end of the body and comprises a fixing part and a supporting part, the diameter of the fixing part in the radial direction is smaller than the aperture of the first hole, and the diameter of the supporting part in the radial direction is larger than the aperture of the first hole; the rivet pressing mechanism is arranged at the other end of the body, the rivet pressing mechanism comprises a flange part and a protruding part, the radial diameter of the flange part is larger than that of the protruding part, and a groove which is concave in the axial direction is formed between the flange part and the protruding part; the diameter of the body in the radial direction is smaller than the diameter of the supporting part and the diameter of the protruding part in the radial direction. By means of the structure, the situation that the higher the partition height is, the larger the displacement is can be reduced through the supporting part with the large size, and the thin rod part is arranged.

Description

Technical Field

[0001] The utility model relates to a spacing bolt and belongs to the technical field of fastener manufacturing. 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] Generally, when two plate-like objects need to be fixed together at a preset distance, bonding, welding or mechanical fixing methods can be used. Among them, bonding is more unstable and requires the use of a large amount of chemicals, which is relatively insufficient from the perspective of cost and environmental protection; welding has relatively high requirements for the process and is not suitable for fixing two plates of smaller sizes, especially in the field of circuit boards; mechanical fixing includes fixing with screws, rivets, pins, etc., which is more flexible than bonding and welding.

[0004] Spacer bolts are a universal fastener used in mechanical fixation, and are suitable for all situations where a certain distance from the fixed plane is required. However, the existing spacer bolts generally have a large main body structure, which results in high fixing costs and excessively heavy plates. In addition, there is generally a certain tolerance in the matching of the apertures of the corresponding fixed plates. When multiple spacer bolts are required for fixation, the higher the height of the interval (i.e., the higher the height of the main body), the greater the offset. In the above case, in order to ensure accuracy, larger spacer bolts can only be used, which further increases the weight of the plate structure.

[0005] There is currently no spacing bolt that can solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a spacing bolt which can reduce the situation where the spacing height is higher and the position deviation is larger through a larger supporting part, and the thinner rod and riveting mechanism can achieve a smaller volume and a simpler installation method.

[0007] In order to achieve the above-mentioned object, the utility model discloses the following spacing bolt, which is used to connect a top plate and a bottom plate, wherein the top plate includes a first hole, and the bottom plate includes a second hole; and the spacing bolt includes:

[0008] A body extending in an axial direction;

[0009] A spacing mechanism, the spacing mechanism is arranged at one end of the body, the spacing mechanism comprises a fixing portion and a supporting portion, the diameter of the fixing portion along the radial direction is smaller than the aperture of the first hole, and the diameter of the supporting portion along the radial direction is larger than the aperture of the first hole;

[0010] A riveting mechanism, the riveting mechanism is arranged at the other end of the body, the riveting mechanism comprises a flange portion and a raised portion, the diameter of the flange portion along the radial direction is larger than the diameter of the raised portion along the radial direction, and a groove recessed toward the axial direction is included between the flange portion and the raised portion;

[0011] Wherein, a diameter of the main body along the radial direction is smaller than a diameter of the support portion and the protrusion along the radial direction.

[0012] Furthermore, a nut is also included, the periphery of the fixing portion includes a threaded structure, the nut matches the threaded structure, and the maximum diameter of the nut along the radial direction is larger than the aperture of the first hole.

[0013] Furthermore, the main body, the spacing mechanism and the riveting mechanism are integrally formed.

[0014] Furthermore, the main body, the spacing mechanism and the riveting mechanism are formed by cold forging and / or turning.

[0015] Furthermore, the diameter of the fixing portion along the radial direction matches that of the main body.

[0016] Further, the flange portion is arranged on a side of the riveting mechanism away from the spacing mechanism, and the protrusion portion is arranged on a side of the riveting mechanism close to the spacing mechanism.

[0017] Further, the fixing portion is arranged on a side of the spacing mechanism away from the riveting mechanism, and the supporting portion is arranged on a side of the spacing mechanism close to the riveting mechanism.

[0018] Furthermore, a diameter of the second hole is larger than a diameter of the support portion along the radial direction.

[0019] Further, a diameter of the second hole is between the diameters of the flange portion and the protruding portion along the radial direction.

[0020] Furthermore, the thickness of the base plate matches the thickness of the riveting mechanism.

[0021] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0022] 1. The spacing bolt of the utility model can realize that even with a high spacing height, the first hole can be within the projection coverage of the support part by setting a support part with a diameter significantly larger than that of the rod part in the spacing mechanism, thereby avoiding unstable fixing and inaccurate fixing position caused by excessive spacing height and position offset.

[0023] 2. The top of the spacer bolt of the utility model includes an arc-shaped portion. By setting a riveting mechanism that cooperates with the base plate, the base plate can be fixed by simply inserting the spacer bolt into the base plate and applying pressure to the flange portion. It has high installation efficiency and is smaller and lighter than traditional fixing methods.

[0024] 3. The spacer bolts of the utility model are connected by thin rods, and the body diameter is small, so that the spacer bolts are lighter as a whole, and the size and weight are reduced while ensuring the size of the supporting plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 This is a schematic diagram of a fixed state of a spacing bolt provided in an embodiment of this specification;

[0027] Figure 2 It is a schematic elevation view of a spacing bolt provided in an embodiment of this specification;

[0028] Figure 3 It is an axonometric schematic diagram of a spacing bolt provided in an embodiment of this specification;

[0029] In the figure: 100, top plate; 101, first hole; 200, bottom plate; 201, second hole; 1, main body; 2, spacing mechanism; 21, fixing part; 22, supporting part; 3, riveting mechanism; 31, flange part; 32, raised part; 33, groove. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] See also Figure 1-3 , is a spacing bolt of this embodiment, used to connect the top plate 100 and the bottom plate 200, wherein the top plate includes a first hole 101 and the bottom plate includes a second hole 201; and includes:

[0033] A body 1, the body 1 extends in the axial direction;

[0034] The spacing mechanism 2 is arranged at one end of the body 1, and includes a fixing portion 21 and a supporting portion 22. The diameter of the fixing portion 21 along the radial direction is smaller than the aperture of the first hole 101, and the diameter of the supporting portion 22 along the radial direction is larger than the aperture of the first hole 101;

[0035] The press riveting mechanism 3 is arranged at the other end of the body 1, and comprises a flange portion 31 and a raised portion 32. The diameter of the flange portion 31 along the radial direction is larger than the diameter of the raised portion 32 along the radial direction, and a groove 33 recessed in the axial direction is included between the flange portion 31 and the raised portion 32;

[0036] The radial diameter of the body 1 is smaller than the radial diameters of the support portion 22 and the protrusion 32 .

[0037] Through the above structure, when in use, the staff only needs to insert the spacing mechanism 2, the main body 1 and part of the riveting mechanism 3 of this embodiment into the first hole 101 of the top plate 100 and the second hole 201 of the bottom plate 200, and then apply force to the flange portion 31 in the riveting mechanism 3, so that the metal in the side wall of part of the second hole 201 is deformed and squeezed into the groove 33 between the flange portion 31 and the raised portion 32, until the riveting mechanism 3 and the bottom plate 200 are completely fixed, and the riveting process is completed. Then, when the top plate 100 is in the spacing mechanism 2 is placed stably on the support part 22, and the fixing part 21 is completely passed through the first hole 101 and is arranged on the top of the top plate 100, so that the top plate 100 can be fixed by fixing the protruding fixing part 21, that is, the top plate 100 is pressed and stabilized by the external mechanism and the supporting part 22. Specifically, in this embodiment, the outer wall of the fixing part 21 has a thread, which can match the external nut, so that the nut is sleeved on the fixing part 21 and then rotated and locked to the top plate 100 until the top plate 100 is completely clamped and locked together by the nut and the supporting part 22. At this time, the top plate 100 and the bottom plate 200 are completely fixed and have a preset distance, which is roughly the length of the body 1 along the radial direction.

[0038] Of course, when using the device of the utility model, the steps of installation are not displaced. In another embodiment, the staff can first put the top plate 100 on the spacing mechanism 2, fix the top plate 100 by external fasteners and the support part 22, and then put the bottom plate 200 on the riveting mechanism 3, and fix the bottom plate 200 by riveting, which can also achieve the effect of fixing the top plate 100 and the bottom plate 200 to maintain a preset distance. The above methods do not deviate from the fixing method concept of the utility model.

[0039] In the above process, since the present embodiment has a support portion 22 with a larger diameter, even if there is a small deviation in the process of inserting the spacer bolt into the top plate 100, the first hole 101 can be easily covered by the coverage of the projection of the support portion 22, and will not affect the support of the support portion 22 to the top plate 100. In the prior art, in order to avoid the above deviation, the general practice is to directly increase the diameter of the main body 1 so as to better support the top plate 100, which significantly increases the volume and weight of the overall fixed structure and even affects the use of the finished product. At the same time, with the help of the pressure riveting mechanism 3, the metal of the hole wall portion of the second hole 201 of the bottom plate 200 is squeezed into the groove 33, which conveniently realizes the fixation of the bottom plate 200. Compared with the traditional fixing methods of screwing, gluing or welding, the riveting fixing method of this embodiment is simpler, has lower processing difficulty requirements, and has a lower cost. At the same time, Figure 1As shown, since the bottom surface of the flange portion 31 can be flush with the top plate 100, the top plate 100 can be fixed without protrusions, which has a higher process level compared to other mechanical fixing methods with protrusions.

[0040] Furthermore, the body 1 is configured as a regular cylindrical geometric body, and the two ends of the body 1 are respectively and straightly transitioned with the bottom of the support portion 22 of the spacing mechanism 2 and the top of the protrusion 32 of the riveting mechanism 3, and the diameter of the body 1 in the radial direction is significantly larger than the plate thickness of the top plate 100 and the bottom plate 200, so that the spacing bolt of this embodiment has sufficient support strength for the top plate 100 and the bottom plate 200. Specifically, the diameter of the fixing portion 21 in the radial direction is slightly smaller than the aperture of the first hole 101, so that the fixing portion 21 can be easily sleeved in the first hole 101 without causing large shaking and deviation. In addition, in this embodiment, the diameter of the support portion 22 in the radial direction is significantly larger than the aperture of the first hole 101, so that even if there is a partial deviation in the position of the fixing portion 21 sleeved in the first hole 101, the support portion 22 with a larger coverage area can also cooperate with the external nut and achieve a better support effect on the top plate 100. The diameter of the second hole 201 in the bottom plate 200 is between the diameters of the flange 31 and the raised portion 32, so that before riveting, the bottom plate 200 can partially abut against one side of the flange 31, so that when the outside world applies pressure to the flange 31, the bottom plate 200 abutting against the flange 31 is deformed, and the metal in the deformation process is squeezed and flows in the direction of the applied force, just so that the metal is squeezed into the empty space of the groove 33 on one side of the applied force direction. It is worth noting that in this embodiment, if the riveting effect is to be achieved, the structural strength of the flange 31, the raised portion 32 and the groove 33 in the riveting mechanism 3 must be greater than the structural strength of the bottom plate 200.

[0041] Furthermore, in this embodiment, a nut (not shown in the figure) is further included, the outer periphery of the fixing portion 21 includes a threaded structure, the nut matches the threaded structure, and the maximum diameter of the nut along the radial direction is greater than the aperture of the first hole 101. Specifically, the maximum diameter of the nut along the radial direction is also less than or equal to the maximum size of the support portion 22 along the radial direction, so as to avoid uneven force on both sides of the bottom plate 200 due to the inconsistent size of the nut and the support portion 22, resulting in deformation or even tearing.

[0042] Furthermore, the main body 1, the spacing mechanism 2 and the riveting mechanism 3 are integrally formed. Specifically, the main body 1, the spacing mechanism 2 and the riveting mechanism 3 are formed by cold forging and / or turning. The purpose of cold forging is to form the main structures such as the main body 1 and the support portion 22, the protrusion 32, etc., which has the advantages of good strength performance and high material utilization rate. Turning is used to form detailed structures such as threads and grooves 33, which has the advantage of high structural accuracy. At the same time, the diameter of the fixing portion 21 along the radial direction matches the main body 1, that is, the fixing portion 21 is actually an extended part of the main body 1, so that the material structure strength in this embodiment is stronger, and the fixing portion 21 maintains the same thin rod as the main body 1, and the material consumption is low, which helps to achieve a lighter effect.

[0043] Furthermore, the flange portion 31 is arranged on the side of the riveting mechanism 3 away from the spacing mechanism 2, and the protrusion 32 is arranged on the side of the riveting mechanism 3 close to the spacing mechanism 2. At the same time, the fixing portion 21 is arranged on the side of the spacing mechanism 2 away from the riveting mechanism 3, and the supporting portion 22 is arranged on the side of the spacing mechanism 2 close to the riveting mechanism 3. In other words, the force application point of the riveting mechanism 3 in this embodiment is located on the outside of the structure, and can apply force inward, which has stronger stability in the process of applying pressure. Of course, this can only be done after the entire body 1 and the spacing mechanism 2 are both sleeved on the top plate 100 and the bottom plate 200 in advance.

[0044] In another embodiment, the positions of the flange 31 and the protrusion 32 are opposite to those of the present embodiment, that is, it is not necessary to pre-set the entire body 1 and the spacing mechanism 2 on the top plate 100 and the bottom plate 200 before riveting, but the riveting mechanism 3 can be directly placed at the second hole 201 position of the riveting point before riveting, but the pressing direction is opposite, which has certain difficulties in the process. It should be noted that in this embodiment, the aperture of the second hole 201 does not need to be larger than the diameter of the support portion 22 along the radial direction.

[0045] Furthermore, if Figure 1 As shown, the thickness of the bottom plate 200 matches the thickness of the riveting mechanism 3, so that after riveting, the riveting mechanism 3 and the bottom plate 200 can form a complete flat plate, and the material surface can be free of protrusions.

[0046] 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.

[0047] 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 spacing bolt for connecting a top plate and a bottom plate, wherein: The top plate includes a first hole, and the bottom plate includes a second hole; characterized in that: A body extending in an axial direction; A spacing mechanism, the spacing mechanism is arranged at one end of the body, the spacing mechanism comprises a fixing portion and a supporting portion, the diameter of the fixing portion in the radial direction is smaller than the aperture of the first hole, and the diameter of the supporting portion in the radial direction is larger than the aperture of the first hole; A riveting mechanism, the riveting mechanism is arranged at the other end of the body, the riveting mechanism comprises a flange portion and a raised portion, the diameter of the flange portion along the radial direction is larger than the diameter of the raised portion along the radial direction, and a groove recessed toward the axial direction is included between the flange portion and the raised portion; Wherein, a diameter of the main body along the radial direction is smaller than a diameter of the support portion and the protrusion along the radial direction.

2. The spacer bolt according to claim 1, characterized in that: A nut is also included. The periphery of the fixing portion includes a threaded structure. The nut matches the threaded structure, and the maximum diameter of the nut along the radial direction is greater than the aperture of the first hole.

3. The spacer bolt according to claim 1, characterized in that: The main body, the spacing mechanism and the riveting mechanism are integrally formed.

4. The spacer bolt according to claim 3, characterized in that: The main body, the spacing mechanism and the riveting mechanism are formed by cold forging and / or turning.

5. The spacer bolt according to claim 1, characterized in that: The diameter of the fixing portion along the radial direction matches that of the main body.

6. The spacer bolt according to claim 1, characterized in that: The flange portion is arranged on a side of the press riveting mechanism away from the spacing mechanism, and the protrusion portion is arranged on a side of the press riveting mechanism close to the spacing mechanism.

7. The spacer bolt according to claim 1, characterized in that: The fixing portion is arranged on a side of the spacing mechanism away from the riveting mechanism, and the supporting portion is arranged on a side of the spacing mechanism close to the riveting mechanism.

8. The spacer bolt according to claim 1, characterized in that: A diameter of the second hole is larger than a diameter of the support portion along the radial direction.

9. The spacer bolt according to claim 1, characterized in that: The diameter of the second hole is between the diameters of the flange portion and the protruding portion along the radial direction.

10. The spacer bolt according to claim 1, characterized in that: The thickness of the bottom plate matches the thickness of the riveting mechanism.

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