CN209294190U - Prevent the screw connection structure of occlusion - Google Patents

Prevent the screw connection structure of occlusion Download PDF

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Publication number
CN209294190U
CN209294190U CN201920034554.1U CN201920034554U CN209294190U CN 209294190 U CN209294190 U CN 209294190U CN 201920034554 U CN201920034554 U CN 201920034554U CN 209294190 U CN209294190 U CN 209294190U
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CN
China
Prior art keywords
housing
bolt
mesoporous
screw
screw thread
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.)
Active
Application number
CN201920034554.1U
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Chinese (zh)
Inventor
刘元
温询
符义红
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Chongqing Pump Industry Co Ltd
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Chongqing Pump Industry Co Ltd
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Priority to CN201920034554.1U priority Critical patent/CN209294190U/en
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Abstract

The utility model discloses the screw connection structures for preventing occlusion, including the first housing, the second housing, nuts and bolt, the first housing is equipped with through-hole, the second housing is equipped with screw thread mesoporous, the through-hole that described bolt one end passes through the first housing enters in the screw thread mesoporous of the second housing and is threadedly coupled with screw thread mesoporous, the bolt other end is equipped with nut to be fixedly connected with the first housing with the second housing by screw bolt and nut, the end of the second housing mesoporous is generally aligned in the same plane, the plane and mesoporous it is axially vertical.The precise positioning of bolt may be implemented in the screw connection structure, can effectively avoid bolt end screw thread and second housing screw thread from scuffing occur, while increasing the pretightning force between body, fastening effect is more preferable.

Description

Prevent the screw connection structure of occlusion
Technical field
The utility model relates to mechanical whorl interconnection technique fields, in particular to prevent the screw connection structure of occlusion.
Background technique
Threaded connection be it is a kind of it is widely used removably is fixedly connected, have structure is simple, connection reliably, assembly and disassembly side Just the advantages that.It is bolted at present, stud connection, screw connection, holding screw connection, sunk screw and tapping screw These types is threadedly coupled type.
When mechanical body each section need to be connected be assembled into an entirety when, Chang Xuanyong stud connection side Formula, existing screw connection structure is as shown in Figure 1, first in 1 holes drilled through of the first housing, the drilling pipe mesoporous on the second housing, then The tapping female bore in middle hole wall, then stud is screwed into two bodies for needing to connect, finally fastened with nut.In the structure 2 mesoporous of the second housing end it is tapered, during bolt 3 is screwed into the first housing 1 and the second housing 2, the spiral shell of bolt 3 After line is easily contacted with the end of 2 mesoporous of the second housing, because can not precise positioning, bolt 3 again it is longer, operator does not often pay attention to spiral shell Bolt 3 has been screwed into length, will continue to enlarging moment nutting, especially using big screw-down torque when be easy to that screw thread is caused axially to limit The case where position occlusion (referring to the object of surface relief injustice in mechanics, contact with each other and block) occurs: one side bolt is being tieed up It is difficult to dismantle when repairing, on the other hand because the material hardness of body is often below the hardness of bolt material, will lead to body mesoporous Thread damage causes body to scrap when serious.
Summary of the invention
In view of the above shortcomings of the prior art, the purpose of this utility model is that offer energy precise positioning and can have Effect prevents the screw connection structure of occlusion.
The technical solution of the utility model is achieved in that
Prevent the screw connection structure of occlusion, including the first housing, the second housing, nuts and bolt, the first housing Equipped with through-hole, the second housing is equipped with screw thread mesoporous, and the through-hole that described bolt one end passes through the first housing enters the spiral shell of the second housing Be threadedly coupled in line mesoporous and with screw thread mesoporous, the bolt other end be equipped with nut with by screw bolt and nut by the first housing and the Two bodies are fixedly connected, and the end of the second housing mesoporous is generally aligned in the same plane, the plane and mesoporous it is axially vertical.
After being arranged in this way, be because of the thickness of the first housing known to, so the length of through-hole also specifies, in processing second A plane is processed into end when body mesoporous, the distance of the plane to mesoporous head end is certain value, thus can essence The length of the bolt head insertion of true bolt, thus to its precise positioning.Meanwhile the end of mesoporous is plane, when the bolt of bolt After head is inserted into and holds out against the plane, plane has a reaction force to the second housing, and after fastening nut is tightened, nut is to the first machine Body is applied with certain pressure, so that the first housing and the second housing are fastenedly connected by the pretightning force between increasing body, tightly Gu effect is good, to improve safety.
It further, is the polished rod of certain length into the bolt end of the second housing.The polished rod of bolt end and second The plane of bore end is supported in body, it is possible to prevente effectively from when applying larger screw-down torque, bolt end screw thread and the second machine There is scuffing in body screw thread.
Further, the end of the mesoporous is process by milling cutter.
Further, the through-hole is unthreaded hole.
Further, the bolt is stud.
Compared with prior art, the utility model has the following beneficial effects:
1, the end of second housing mesoporous is plane, and after bolt one end is inserted into and holds out against the plane, plane is to the second machine Body has a reaction force, and after fastening nut is tightened, nut is applied with certain pressure to the first housing, thus between increasing body Pretightning force the first housing and the second housing are fastenedly connected, fastening effect is good, to improve safety.
It 2, is the polished rod of certain length into the bolt end of the second housing, so that after bolt is screwed into, stud The plane of bore end is supported in the polished rod and the second housing of end, it is possible to prevente effectively from when applying larger screw-down torque, bolt There is scuffing in end thread and second housing screw thread.
Detailed description of the invention
The existing screw connection structure schematic diagram of Fig. 1-.
Fig. 2-the utility model structure diagram.
Wherein: the 1- first housing;The 2- second housing;3- stud;4- nut.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Referring to fig. 2, the screw connection structure of occlusion, including the first housing 1, the second housing 2, nut 4 and double end spiral shell are prevented Bolt 3, the first housing 1 are equipped with the unthreaded hole through 1 two sides of the first housing, and the second housing 2 is equipped with screw thread mesoporous, the double end spiral shell The unthreaded hole that bolt 3 passes through the first housing 1 enters in the screw thread mesoporous of the second housing 2 and is threadedly coupled with screw thread mesoporous, and bolt is another End is equipped with nut 4 and is fixedly connected with the first housing 1 with the second housing 2 with nut 4 with passing through stud 3, the second housing 2 The end of mesoporous is generally aligned in the same plane, the plane and mesoporous it is axially vertical.After being arranged in this way, because the thickness of the first housing 1 is It is known, so the length of unthreaded hole also specifies, a plane is processed into end when processing 2 mesoporous of the second housing, it should The distance of plane to mesoporous head end is certain value, thus can accurate stud bolt head insertion length, thus right Its precise positioning.Meanwhile the end of mesoporous is plane, and after the bolt head of stud is inserted into and holds out against the plane, plane pair The second housing has a reaction force, and after fastening nut is tightened, nut is applied with certain pressure to the first housing, to increase The first housing and the second housing are fastenedly connected by the pretightning force between body, and fastening effect is good, to improve safety.
It is the polished rod of certain length into 3 end of stud of the second housing 2.After stud 3 is screwed into, stud The plane of bore end is supported in the polished rod and the second housing of end, it is possible to prevente effectively from when applying larger screw-down torque, bolt There is scuffing in end thread and second housing screw thread.
The end of the mesoporous is process by milling cutter.
Finally, it should be noted that the above embodiments of the present invention is only to illustrate act made by the utility model Example, and it is not the restriction to the utility model embodiment.For those of ordinary skill in the art, it is stated upper Other various forms of variations and variation can also be made on the basis of bright.Here all embodiments can not be given thoroughly It lifts.All the technical solution of the utility model changes and variations that derived from that belong to are still in the utility model Protection scope column.

Claims (5)

1. preventing the screw connection structure of occlusion, including the first housing, the second housing, nuts and bolt, the first housing from setting There is through-hole, the second housing is equipped with screw thread mesoporous, and the through-hole that described bolt one end passes through the first housing enters the screw thread of the second housing It is threadedly coupled in mesoporous and with screw thread mesoporous, the bolt other end is equipped with nut to pass through screw bolt and nut for the first housing and second Body is fixedly connected, which is characterized in that the end of the second housing mesoporous is generally aligned in the same plane, the axial direction of the plane and mesoporous Vertically.
2. the screw connection structure according to claim 1 for preventing occlusion, which is characterized in that into the bolt of the second housing End is the polished rod of certain length.
3. the screw connection structure according to claim 1 for preventing occlusion, which is characterized in that the end of the mesoporous is by milling Knife is process.
4. the screw connection structure according to claim 1 for preventing occlusion, which is characterized in that the through-hole is unthreaded hole.
5. the screw connection structure according to claim 1 for preventing occlusion, which is characterized in that the bolt is double end spiral shell Bolt.
CN201920034554.1U 2019-01-09 2019-01-09 Prevent the screw connection structure of occlusion Active CN209294190U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920034554.1U CN209294190U (en) 2019-01-09 2019-01-09 Prevent the screw connection structure of occlusion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920034554.1U CN209294190U (en) 2019-01-09 2019-01-09 Prevent the screw connection structure of occlusion

Publications (1)

Publication Number Publication Date
CN209294190U true CN209294190U (en) 2019-08-23

Family

ID=67641979

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920034554.1U Active CN209294190U (en) 2019-01-09 2019-01-09 Prevent the screw connection structure of occlusion

Country Status (1)

Country Link
CN (1) CN209294190U (en)

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