CN207872984U - Double thread section expansion cracking proof drywall screw mold and its dental lamina - Google Patents
Double thread section expansion cracking proof drywall screw mold and its dental lamina Download PDFInfo
- Publication number
- CN207872984U CN207872984U CN201721768511.3U CN201721768511U CN207872984U CN 207872984 U CN207872984 U CN 207872984U CN 201721768511 U CN201721768511 U CN 201721768511U CN 207872984 U CN207872984 U CN 207872984U
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- threading
- screw
- dental lamina
- thread section
- section expansion
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Abstract
The utility model discloses a kind of double thread section expansion cracking proof drywall screw dental laminas, including dental lamina ontology, the dental lamina ontology includes first end, second end and the threading face between the first end and second end, the direction that the first end is directed toward second end is threading direction, and the threading face is equipped with threads threading area, the head end screw thread threading area for rubbing head end screw thread with the hands and the transition region between threads threading area and the head end screw thread threading area for rubbing threads with the hands.The invention also discloses a kind of double thread section expansion cracking proof drywall screw molds.The double thread section expansion cracking proof drywall screw mold and its dental lamina of the utility model disclosure satisfy that the processing request of the double thread section expansion cracking proof drywall screw with two sections of screw threads, you can while two sections of thread segments are twisted on a drywall screw.
Description
Technical field
The utility model belongs to screw thread cutting technical field, specifically for a kind of double thread section expansion cracking proof drywall screw mold and
Its dental lamina.
Background technology
Dental lamina-is for two pieces of rectangular templates above thread rolling machine.Dental lamina is divided into two pieces, and one is long and the other is short, and long slab is activity
Plate, short slab are fixed plate, there is tooth line above, for the mold to screw nails extrusion forming for screw thread.Existing dental lamina is general
For processing simple helicitic texture, the screw element of complicated multi-segment thread can not be processed.As shown in figure 3, to be a kind of double
The structural schematic diagram of thread segment expansion cracking proof drywall screw, the double thread section expansion cracking proof drywall screw include ailhead 1, follow closely tail 2 and rivet nut 3,
Rivet nut 3 is equipped with two sections of screw threads, and two sections of screw threads are respectively close to the threads 4 of 2 one end of nail tail and close to the head of 1 one end of ailhead
Screw thread 5 is held, the sawtooth of radially outwardly projecting is equipped at intervals on head end screw thread 5.It is anti-that existing dental lamina cannot be satisfied the double thread section
The processing request of spalling drywall screw.
Invention content
In view of this, the purpose of this utility model is to provide a kind of double thread section expansion cracking proof drywall screw mold and its teeth
Plate disclosure satisfy that the processing request of the double thread section expansion cracking proof drywall screw with two sections of screw threads.
In order to achieve the above objectives, the utility model provides the following technical solutions：
The utility model first proposed a kind of double thread section expansion cracking proof drywall screw dental lamina, including dental lamina ontology, the tooth
Plate ontology includes first end, second end and the threading face between the first end and second end, and the first end is directed toward the
The direction at two ends is threading direction, and the threading face is equipped with for rubbing the threads threading area of threads with the hands, for rubbing head with the hands
The head end screw thread threading area for holding screw thread and the transition between threads threading area and the head end screw thread threading area
Area.
Further, it is equipped with rivet nut cutting slot in the transition region, the width of rebate of the rivet nut cutting slot is along described the
The direction that second end is directed toward in one end is progressively smaller until that the two side of the rivet nut cutting slot overlaps.
Further, the two side of the rivet nut cutting slot is axisymmetricly arranged.
Further, the two side intersection of the rivet nut cutting slot, and the intersection between the two side of the rivet nut cutting slot
Line is parallel with threading direction.
Further, the notch plane of the rivet nut cutting slot and threads threading area and the head end screw thread threading
Area is concordant.
The utility model also proposed a kind of double thread section expansion cracking proof drywall screw mold, including two pieces of double spiral shells as described above
Line section expansion cracking proof drywall screw dental lamina.
The beneficial effects of the utility model are：
The double thread section expansion cracking proof drywall screw dental lamina of the utility model, by the way that threads threading area is arranged on threading face
With head end screw thread threading area, two screw threads can be twisted on same root drywall screw, you can to meet the dry wall of double thread section expansion cracking proof
Manufacture requirement.
Description of the drawings
In order to keep the purpose of this utility model, technical solution and advantageous effect clearer, the utility model provides as follows
Attached drawing illustrates：
Fig. 1 is the structural schematic diagram of the utility model double thread section expansion cracking proof drywall screw dental lamina embodiment；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is a kind of structural schematic diagram of double thread section expansion cracking proof drywall screw.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model can be better understood from and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
The double thread section expansion cracking proof drywall screw mold of the present embodiment, including two pieces of double thread section expansion cracking proof drywall screw dental laminas.
As shown in Figure 1, for the structural schematic diagram of the utility model double thread section expansion cracking proof drywall screw dental lamina embodiment.Pair of the present embodiment
Thread segment expansion cracking proof drywall screw dental lamina, including dental lamina ontology 7, dental lamina ontology 7 is including first end 8, second end 9 and is located at first end
Threading face 10 between 8 and second end 9, the direction that first end 8 is directed toward second end 9 are threading direction, and threading face 10, which is equipped with, to be used
In the threads threading area 11 of stranding threads 4, the head end screw thread threading area 12 for rubbing head end screw thread 5 with the hands and it is located at tail end spiral shell
Transition region 13 between line threading area 11 and head end screw thread threading area 12.
Further, rivet nut cutting slot 14, the width of rebate edge of rivet nut cutting slot 14 are equipped in the transition region 13 of the present embodiment
The direction for the direction second end 9 of first end 8 is progressively smaller until that the two side of rivet nut cutting slot 14 overlaps.The rivet nut of the present embodiment
The two side of cutting slot 14 is axisymmetricly arranged, and the two side intersection of rivet nut cutting slot 14, and the both sides of rivet nut cutting slot 14
Intersecting lens between wall is parallel with threading direction.The notch plane of the rivet nut cutting slot 14 of the present embodiment and threads threading area
It is concordant with head end screw thread threading area.In this way, i.e. rivet nut 3 of the machinable between threads 4 and head end screw thread 5, makes outside it
Diameter is equal with the diameter of threads 4 and the thread root of head end screw thread 5.
The double thread section expansion cracking proof drywall screw dental lamina of the present embodiment, by threading face be arranged threads threading area and
Head end screw thread threading area, can twist two screw threads on same root drywall screw, you can to meet the dry wall of double thread section expansion cracking proof
Manufacture requires.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the utility model, the utility model
Protection domain it is without being limited thereto.Those skilled in the art on the basis of the utility model made by equivalent substitute or change
It changes, both is within the protection scope of the present invention.The scope of protection of the utility model is subject to claims.
Claims (6)
1. a kind of double thread section expansion cracking proof drywall screw dental lamina, including dental lamina ontology, the dental lamina ontology include first end, second end
And the threading face between the first end and second end, the direction that the first end is directed toward second end are threading direction,
It is characterized in that：The threading face is equipped with the threads threading area for rubbing threads with the hands, the head end for rubbing head end screw thread with the hands
Screw thread threading area and the transition region between threads threading area and the head end screw thread threading area.
2. double thread section expansion cracking proof drywall screw dental lamina according to claim 1, it is characterised in that：It is equipped in the transition region
The width of rebate of rivet nut cutting slot, the rivet nut cutting slot is progressively smaller until along the direction of first end direction second end
The two side of the rivet nut cutting slot overlaps.
3. double thread section expansion cracking proof drywall screw dental lamina according to claim 2, it is characterised in that：The rivet nut cutting slot
Two side is axisymmetricly arranged.
4. double thread section expansion cracking proof drywall screw dental lamina according to claim 3, it is characterised in that：The rivet nut cutting slot
Two side is intersected, and the intersecting lens between the two side of the rivet nut cutting slot is parallel with threading direction.
5. double thread section expansion cracking proof drywall screw dental lamina according to claim 2, it is characterised in that：The rivet nut cutting slot
Notch plane is concordant with threads threading area and the head end screw thread threading area.
6. a kind of double thread section expansion cracking proof drywall screw mold, it is characterised in that：Including two pieces as described in claim any one of 1-5
Double thread section expansion cracking proof drywall screw dental lamina.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721768511.3U CN207872984U (en) | 2017-12-18 | 2017-12-18 | Double thread section expansion cracking proof drywall screw mold and its dental lamina |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721768511.3U CN207872984U (en) | 2017-12-18 | 2017-12-18 | Double thread section expansion cracking proof drywall screw mold and its dental lamina |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207872984U true CN207872984U (en) | 2018-09-18 |
Family
ID=63502743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721768511.3U Active CN207872984U (en) | 2017-12-18 | 2017-12-18 | Double thread section expansion cracking proof drywall screw mold and its dental lamina |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207872984U (en) |
-
2017
- 2017-12-18 CN CN201721768511.3U patent/CN207872984U/en active Active
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