CN110701171A - Notch cuttype T type bolt - Google Patents
Notch cuttype T type bolt Download PDFInfo
- Publication number
- CN110701171A CN110701171A CN201911050594.6A CN201911050594A CN110701171A CN 110701171 A CN110701171 A CN 110701171A CN 201911050594 A CN201911050594 A CN 201911050594A CN 110701171 A CN110701171 A CN 110701171A
- Authority
- CN
- China
- Prior art keywords
- bolt
- screw rod
- stepped
- neck section
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B26/00—Tracks or track components not covered by any one of the preceding groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/005—Set screws; Locking means therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a stepped T-shaped bolt, which comprises a bolt head, a neck section and a screw rod, wherein two ends of the neck section are respectively connected with the bolt head and the screw rod, the bolt head is rectangular, the neck section is provided with a stepped notch parallel to the short side of the bolt head and forms a plurality of layers of steps, the length of the steps is gradually reduced from the side close to the bolt head to the side close to the screw rod, the stepped neck section is arranged on the bolt, the proper steps can be clamped according to the opening width of an embedded channel, the condition that the bolt rotates in the embedded channel when the length of the bolt head is inconsistent with the width of the embedded channel is avoided, and the contact area of the bolt and the embedded channel is effectively increased by using a screw rod, the acting force is dispersed, and the connection strength is enhanced; through set up the second tooth's socket in the bottom surface of step, with the embedding slot way meshing that has first tooth's socket, effectively avoid the bolt to remove along the long limit direction of embedding slot way.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of bolts, in particular to the technical field of a stepped T-shaped bolt.
[ background of the invention ]
The pre-buried channel is often used in rail transit, has U type channel and C type channel usually, and the open-ended width of one side also has the multiple, and the T type bolt that uses when it connects generally is non-standard part, needs the needs customization according to actual project, mostly is whole punching press preparation, and the mould cycle is long, and the die sinking cover is many, and manufacturing cost is high. In addition, during assembly and connection, the situation that the originally designed T-shaped bolt is not matched in size and the T-shaped bolt with different sizes needs to be replaced is sometimes found, so that the nonstandard T-shaped bolt needs to be redesigned and produced, and the processing period of the whole equipment is slowed down. The size range of the customized T-shaped bolt is often not wide enough, only a few bolts can be selected during specific assembly and connection, and the requirement of a production field for diversification of bolt requirements is difficult to meet.
[ summary of the invention ]
The invention aims to solve the problems in the prior art and provides a step-shaped T-shaped bolt which can be suitable for pre-buried channels with various opening widths.
In order to achieve the purpose, the invention provides a stepped T-shaped bolt which comprises a screw head, a neck section and a screw rod, wherein two ends of the neck section are respectively connected with the screw head and the screw rod, the screw head is rectangular, the neck section is provided with a stepped notch parallel to the short side of the screw head and forms a plurality of layers of steps, and the length of the steps is gradually reduced from the side close to the screw head to the side close to the screw rod.
Preferably, the number of the steps is 2-4, and the length of the steps is between the length of the long edge of the screw head and the diameter of the screw.
Preferably, the screw head is provided with a plurality of threaded holes close to two sides of the short side, a screw rod is spirally fixed in each threaded hole, the height of the screw rod is greater than that of the neck section, one end of the screw rod is provided with a rotating groove, and the rotating groove is a straight groove, a cross groove or a cross groove.
Preferably, a plurality of blind holes are formed in two sides of the short edge of each layer of the step and are parallel to the long edge of the screw head, a spring is fixed in each blind hole, a rubber push block is fixed at the other end of each spring, and the rubber push block extends out of each blind hole.
Preferably, the end face of the rubber push block, which extends out of the blind hole, is provided with an inclined plane, and the length of the rubber push block is gradually reduced from the side close to the screw to the side close to the screw.
Preferably, the bottom surface of the step is provided with a second tooth groove matched with the first tooth groove on the inner wall of the opening side of the embedded channel, and the first tooth groove and the second tooth groove limit the bolt to move along the long side direction of the embedded channel.
The invention has the beneficial effects that: according to the invention, the stepped neck section is arranged on the bolt, and a proper step can be clamped according to the opening width of the embedded channel, so that the condition that the bolt rotates in the embedded channel when the length of the bolt is inconsistent with the width of the embedded channel is avoided, and the contact area of the bolt and the embedded channel is effectively increased, the acting force is dispersed and the connection strength is enhanced by using the screw rod; the second tooth grooves are arranged on the bottom surfaces of the steps and are meshed with the embedded channel with the first tooth grooves, so that the bolt is effectively prevented from moving along the long edge direction of the embedded channel; the rubber push block with the inclined plane is arranged on the short side of the step, so that resistance is small when the step is inserted, the spring can be compressed to increase connection between the neck section and the opening, and the bolt is further prevented from rotating.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a front view of a stepped T-bolt of the present invention;
FIG. 2 is a top view of a stepped T-bolt of the present invention;
FIG. 3 is a left side view of a stepped T-bolt of the present invention;
fig. 4 is an assembly view of a stepped T-bolt according to the present invention.
In the figure: the bolt comprises a 1-step T-shaped bolt, a 11-screw head, a 111-threaded hole, a 12-neck section, a 121-notch, a 122-blind hole, a 123-second tooth groove, a 13-screw rod, a 14-screw rod, a 141-rotating groove, a 15-spring, a 16-rubber push block, a 161-inclined plane and a 2-embedded groove.
[ detailed description ] embodiments
Referring to fig. 1 to 4, the stepped T-shaped bolt of the invention comprises a screw head 11, a neck section 12 and a screw 13, wherein two ends of the neck section 12 are respectively connected with the screw head 11 and the screw 13, the screw head 11 is rectangular, the neck section 12 is provided with a stepped notch 121 parallel to the short side of the screw head 11 and forms a plurality of steps, the length of the steps is gradually reduced from the side close to the screw head 11 to the side close to the screw 13, the number of the steps is 2 to 4, the length of the steps is between the length of the long side of the screw head 11 and the diameter of the screw 13, a plurality of threaded holes 111 are arranged at two sides of the screw head 11 close to the short side, a screw rod 14 is spirally fixed in the threaded holes 111, the height of the screw rod 14 is greater than that of the neck section 12, one end of the screw rod 14 is provided with a rotating groove 141, the rotating groove 141 is a straight groove, a cross groove or a meter-shaped groove, each layer the minor face both sides of step all are equipped with a plurality of blind hole 122, blind hole 122 parallels with the long limit of spiral shell head 11, the blind hole 122 internal fixation has spring 15, the other end of spring 15 is fixed with rubber ejector pad 16, rubber ejector pad 16 stretches out blind hole 122, the terminal surface that rubber ejector pad 16 stretches out blind hole 122 is equipped with inclined plane 161, the length of rubber ejector pad 16 reduces to being close to screw rod 13 side from being close to spiral shell head 11 side gradually, be equipped with the second tooth's socket 123 that suits with the first tooth's socket of 2 opening side inner walls of buried channel on the bottom surface of step, first tooth's socket and second tooth's socket 123 restriction bolt move along buried channel 2's long edge direction.
The working process of the invention is as follows:
in the working process of the stepped T-shaped bolt, firstly, a proper step in the neck section 12 is selected according to the opening width of the embedded channel 2, and the screw rod 14 is rotated through the rotating groove 141, so that the bottom surface of the screw rod 14 is flush with the bottom surface of the selected step. Next, the step of the bolt is engaged in the opening of the insert channel 2, and the second tooth groove 123 of the bottom surface of the step is engaged with the first tooth groove of the insert channel 2. In the process that the step is clamped into the opening from top to bottom, the rubber push block 16 gradually compresses the spring 15 towards the axis direction, so that the spring 15 is forced to reversely act to compress the side wall of the opening.
According to the invention, the stepped neck section is arranged on the bolt, and a proper step can be clamped according to the opening width of the embedded channel, so that the condition that the bolt rotates in the embedded channel when the length of the bolt is inconsistent with the width of the embedded channel is avoided, and the contact area of the bolt and the embedded channel is effectively increased, the acting force is dispersed and the connection strength is enhanced by using the screw rod; the second tooth grooves are arranged on the bottom surfaces of the steps and are meshed with the embedded channel with the first tooth grooves, so that the bolt is effectively prevented from moving along the long edge direction of the embedded channel; the rubber push block with the inclined plane is arranged on the short side of the step, so that resistance is small when the step is inserted, the spring can be compressed to increase connection between the neck section and the opening, and the bolt is further prevented from rotating.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides a notch cuttype T type bolt which characterized in that: including spiral shell head (11), neck section (12) and screw rod (13), the both ends of neck section (12) are connected with spiral shell head (11) and screw rod (13) respectively, spiral shell head (11) are the rectangle, neck section (12) are equipped with notch (121) and form a plurality of layers of step with the echelonment that the short side of spiral shell head (11) parallels, the length of step reduces to being close to screw rod (13) side from being close to spiral shell head (11) side gradually.
2. A stepped T-bolt as defined in claim 1 wherein: the number of layers of the steps is 2-4, and the length of the steps is between the length of the long edge of the screw head (11) and the diameter of the screw rod (13).
3. A stepped T-bolt as defined in claim 1 wherein: the screw head (11) is close to the two sides of the short side and is provided with a plurality of threaded holes (111), a screw rod (14) is spirally fixed in the threaded holes (111), the height of the screw rod (14) is larger than that of the neck section (12), one end of the screw rod (14) is provided with a rotating groove (141), and the rotating groove (141) is a straight groove, a cross groove or a cross groove.
4. A stepped T-bolt as defined in claim 1 wherein: the short side both sides of each layer the step all are equipped with a plurality of blind hole (122), blind hole (122) are parallel with the long limit of spiral shell head (11), blind hole (122) internal fixation has spring (15), the other end of spring (15) is fixed with rubber ejector pad (16), rubber ejector pad (16) stretch out blind hole (122).
5. A stepped T-bolt as defined in claim 3 wherein: the end face, extending out of the blind hole (122), of the rubber push block (16) is provided with an inclined plane (161), and the length of the rubber push block (16) is gradually reduced from the side close to the screw head (11) to the side close to the screw rod (13).
6. A stepped T-bolt as defined in claim 1 wherein: and a second tooth groove (123) matched with the first tooth groove on the inner wall of the opening side of the embedded channel (2) is formed in the bottom surface of the step, and the first tooth groove and the second tooth groove (123) limit the bolt to move along the long edge direction of the embedded channel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050594.6A CN110701171A (en) | 2019-10-31 | 2019-10-31 | Notch cuttype T type bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050594.6A CN110701171A (en) | 2019-10-31 | 2019-10-31 | Notch cuttype T type bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110701171A true CN110701171A (en) | 2020-01-17 |
Family
ID=69203040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911050594.6A Pending CN110701171A (en) | 2019-10-31 | 2019-10-31 | Notch cuttype T type bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110701171A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692181A (en) * | 2020-06-19 | 2020-09-22 | 嘉兴同辉汽配有限公司 | Anti-drop connecting piece of automobile brake system |
| CN113580591A (en) * | 2021-07-23 | 2021-11-02 | 卡奔碳纤维技术(东莞)有限公司 | Bonding base of embedded nut and installation method of embedded nut |
-
2019
- 2019-10-31 CN CN201911050594.6A patent/CN110701171A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692181A (en) * | 2020-06-19 | 2020-09-22 | 嘉兴同辉汽配有限公司 | Anti-drop connecting piece of automobile brake system |
| CN113580591A (en) * | 2021-07-23 | 2021-11-02 | 卡奔碳纤维技术(东莞)有限公司 | Bonding base of embedded nut and installation method of embedded nut |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200117 |
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| WD01 | Invention patent application deemed withdrawn after publication |