CN205352192U - Bow and crossbow switching device - Google Patents

Bow and crossbow switching device Download PDF

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Publication number
CN205352192U
CN205352192U CN201521039237.7U CN201521039237U CN205352192U CN 205352192 U CN205352192 U CN 205352192U CN 201521039237 U CN201521039237 U CN 201521039237U CN 205352192 U CN205352192 U CN 205352192U
Authority
CN
China
Prior art keywords
switching device
utility
model
bow
crossbow
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.)
Expired - Fee Related
Application number
CN201521039237.7U
Other languages
Chinese (zh)
Inventor
秦正军
党红超
同新利
张春华
詹翡琼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shengzhen Youli Sheng Pml Precision Mechanism Ltd
Original Assignee
Shengzhen Youli Sheng Pml Precision Mechanism Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shengzhen Youli Sheng Pml Precision Mechanism Ltd filed Critical Shengzhen Youli Sheng Pml Precision Mechanism Ltd
Priority to CN201521039237.7U priority Critical patent/CN205352192U/en
Application granted granted Critical
Publication of CN205352192U publication Critical patent/CN205352192U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41BWEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B5/00Bows; Crossbows
    • F41B5/14Details of bows; Accessories for arc shooting
    • F41B5/1442Accessories for arc or bow shooting
    • F41B5/1469Bow-string drawing or releasing devices

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)

Abstract

The utility model discloses a bow and crossbow switching device, it is including the fixed axle that is used for connecting fixed switching device position, the fixed axle below has mobilizable insurance buckle, be provided with the activity pivot between fixed axle and the insurance buckle, the both ends of insurance buckle are connected to the fixed axle through the activity pivot respectively, the whole part for adopting fe -2Ni iron -based powder sintering of switching device, switching device surface barrel -plating has white zinc layer. The utility model discloses an adopt fe -2Ni iron -based powder as switching device preparation feed, the effectual harmonious poor and size precision unmanageable problem of switching device hardness of having solved, the utilization is on the switching device surface white zinc layer of barrel -plating, effectively improved switching device the rust -preventing characteristic can, can be easily through the smog test. The utility model discloses but wide application in the switching device of various bows and crossbows.

Description

A kind of bow and crossbow switching device
Technical field
This utility model relates to a kind of bow and crossbow device gone hunting, and particularly relates to a kind of bow and crossbow switching device.
Background technology
Bow and crossbow tool switch device of going hunting is indispensable part on bow and crossbow instrument of going hunting.It is used for discharging bow and arrow.Owing to the material requirements of this part own is high so necessarily hardness is high and balanced material could meet part performance requirement to close property fatigue durability high, anti-.
In prior art, switching device selects Fe-8Ni iron powder feeding to make, but the consistency undulatory property in sintering process is big, produced hardness is also unbalanced to have a long way to go from lowest hardness to maximum hardness, can not meet part performance requirement at all, prior art solution is to control the harmony of hardness by sintering debugging, but attempts several temperature and sinter and cannot ensure that hardness harmony finally still ends in failure at all.It addition, the smog test that it's 8 hours pasts switching device part requirements Corrosion Protection, prior art is to soak one with antirust oil to get off prevention.But sample is not above 6 hours beginning to get rusty through smog, and rustless property is poor.
Utility model content
In order to solve above-mentioned technical problem, it is good that the purpose of this utility model is to provide a kind of hardness harmony, the bow and crossbow switching device of good antirust property.
This utility model be the technical scheme is that
A kind of bow and crossbow switching device, the overall U-shaped structure of described switching device, the recess of described U-shape structure is finger placing trough, and the lower section of described finger placing trough has through hole, described switching device generally adopts the part that Fe-2Ni iron-based powder sinters, and described switching device surface barrel plating has white zine layer.
Preferably, described through hole is the through hole that middle narrow two ends are wide.
Preferably, described switching device edge is respectively provided with deburring chamfering.
The beneficial effects of the utility model are:
This utility model, by adopting Fe-2Ni iron-based powder to make feeding as switching device, effectively solves switching device hardness harmony difference and the unmanageable problem of dimensional accuracy;Utilize at switching device surface barrel plating white zine layer, be effectively increased the rustless property of switching device, can easily be tested by smog, there is good economic and social benefit.
This utility model can be widely applied to the switching device of various bow and crossbow.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further:
Fig. 1 is the structural representation of this utility model bow and crossbow switching device.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
As shown in Figure 1, a kind of bow and crossbow switching device, the overall U-shaped structure of described switching device, the recess of described U-shape structure is finger placing trough 1, the lower section of described finger placing trough 1 has through hole 2, described switching device generally adopts the part that Fe-2Ni iron-based powder sinters, and described switching device surface barrel plating has white zine layer.During use, through hole 2 is socketed on the stay cord of bow and crossbow, and the finger of user is placed on finger placing trough 1 and stretches or discharge stay cord.
In this embodiment, have employed Fe-2Ni iron-based powder feeding, this feeding and Fe-8Ni iron-based feeding compare and are in that MIM(metal dust molding) lower hardness, it is simple to do heat treatment process.Can so that switching device integral hardness be more balanced.
Additionally, switching device pilot hole dimension precision requirement is high, in MIM(metal dust molding) technique itself exists a contraction process the chances are 16%~18%, size in contraction process is it is difficult to ensure that the concordance of little scope can not be reached, although having the non-defective unit of 10% but the basic standard of one non-defective unit of the industry can not being met completely, therefore to reach the dimensional accuracy of part requirements.Owing to this utility model adopts Fe-2Ni iron-based powder as feeding, it is simple to heat treatment, therefore easily switching device can be done high accuracy reaming and cut down processing, the manufactured size progress of switching device can be effectively improved.
Finally; switching device part requirements anticorrosive property namely requires that rustless property to be got well; the general smog test requiring to spend 8 hours; this utility model adds barrel plating white zine layer; this technique can plate last layer white zine piece surface; white zine is that a kind of corrosion resistance is excellent adds material, serves a good protective effect to part, the light mistake test of 8 hours when smog is tested.
Preferably, described through hole 2 is the through hole 2 that middle narrow two ends are wide.Through hole 2 design is more beneficial for pulling the bow the concentration of strength.
Preferably, described switching device edge is respectively provided with deburring chamfering.
This utility model, by adopting Fe-2Ni iron-based powder to make feeding as switching device, effectively solves switching device hardness harmony difference and the unmanageable problem of dimensional accuracy;Utilize at switching device surface barrel plating white zine layer, be effectively increased the rustless property of switching device, can easily be tested by smog, there is good economic and social benefit.This utility model can be widely applied to the switching device of various bow and crossbow.
It is above of the present utility model preferably enforcement has been illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the premise without prejudice to this utility model spirit, and these equivalent deformation or replacement are all contained in the application claim limited range.

Claims (1)

1. a bow and crossbow switching device, it is characterized in that, the overall U-shaped structure of described switching device, the recess of described U-shape structure is finger placing trough, the lower section of described finger placing trough has through hole, and described switching device generally adopts the part that Fe-2Ni iron-based powder sinters, and described switching device surface barrel plating has white zine layer, described through hole is the through hole that middle narrow two ends are wide, and described switching device edge is respectively provided with deburring chamfering.
CN201521039237.7U 2015-12-14 2015-12-14 Bow and crossbow switching device Expired - Fee Related CN205352192U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521039237.7U CN205352192U (en) 2015-12-14 2015-12-14 Bow and crossbow switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521039237.7U CN205352192U (en) 2015-12-14 2015-12-14 Bow and crossbow switching device

Publications (1)

Publication Number Publication Date
CN205352192U true CN205352192U (en) 2016-06-29

Family

ID=56153564

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201521039237.7U Expired - Fee Related CN205352192U (en) 2015-12-14 2015-12-14 Bow and crossbow switching device

Country Status (1)

Country Link
CN (1) CN205352192U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160629

Termination date: 20171214

CF01 Termination of patent right due to non-payment of annual fee