GB2449339A - Connector block for transferring blasting signals in a blasting system - Google Patents

Connector block for transferring blasting signals in a blasting system Download PDF

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Publication number
GB2449339A
GB2449339A GB0808240A GB0808240A GB2449339A GB 2449339 A GB2449339 A GB 2449339A GB 0808240 A GB0808240 A GB 0808240A GB 0808240 A GB0808240 A GB 0808240A GB 2449339 A GB2449339 A GB 2449339A
Authority
GB
United Kingdom
Prior art keywords
sleeve
channel
connector block
transmission line
signal transmission
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.)
Granted
Application number
GB0808240A
Other versions
GB0808240D0 (en
GB2449339B (en
Inventor
Jia Xiaohong
Mark Davis
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.)
BEIJING AUXIN CHEMICAL TECHNOL
Original Assignee
BEIJING AUXIN CHEMICAL TECHNOL
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 BEIJING AUXIN CHEMICAL TECHNOL filed Critical BEIJING AUXIN CHEMICAL TECHNOL
Publication of GB0808240D0 publication Critical patent/GB0808240D0/en
Publication of GB2449339A publication Critical patent/GB2449339A/en
Application granted granted Critical
Publication of GB2449339B publication Critical patent/GB2449339B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C5/00—Fuses, e.g. fuse cords
    • C06C5/06—Fuse igniting means; Fuse connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/043—Connectors for detonating cords and ignition tubes, e.g. Nonel tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

A connector block is disclosed for transferring blasting signals in a blasting system. The connector block comprises at least two channels 18 for connecting a first signal transmission line 20 with at least a second signal transmission line 20. One channel may be taken as the input end of the signal transmission and the other channel(s) as the output end. Each channel may open to a central cavity 16 enabling the transfer of the blasting signal between the transmission lines 20. The size and shape of the channels 18 may match that of the signal transmission line 20. Transmission lines 20 may be inserted into the channels 18 and retained and locked therein by a leaf spring.

Description

CONNECTOR BLOCK
Field of the Invention
The invention relates to a connector block.
Summary of the Invention
According to a first aspect of the invention, there is provided a connector block which has at least two channels therein for connecting one signal transmission line with multiple signal transmission lines in a blasting system for transferring blasting signals.
One of the channels may be taken as the input end of signal transmission and one or more of the others, as the output end, wherein each channel is opened to a center cavity, thus enabling the input end and output end of transmission line to transfer the blasting signal through center cavity.
The size and shape of channel may match the signal transmission line.
When the signal transmission line is inserted into a channel from one end, it will be received and retained in the channel and the blasting signals are transferred through center cavity.
The signal transmission line may be inserted into the channel from one end, so that in use, the transmission line will be retained therein and locked by leaf spring.
The shock wave of one transmission line may be safely transferred to the other transmission lines.
The leaf spring may be released by pressing on a guide sleeve in the direction of its axis so that the transmission line may be pulled out of the channel.
Each receiving and retaining channel of the body may have a locating sleeve, a sealing ring at the outside of locating sleeve, a compression sleeve at the outside of sealing ring, a leaf spring at the outside of compression sleeve, a retaining sleeve at the outside of the leaf spring, the leaf spring being located and axially compressed between compression sleeve and second stepped shoulder of retaining sleeve, the guide sleeve being retained in the bore of retaining sleeve.
The leaf spring may be a radial elastic leaf spring which consists of triangularly ridged teeth with a hole at the center, of which all ridges are bent to the same side and Ill ends are connected with a circumferential ring to form a closed structure.
The body may include channels which transit from the center cavity to the ends of all channels including their transition sections, or from the small diameter sections at the center part to the large diameter sections at the ends of all channels, the retaining slot being made at the end of each channel, the outside contour of retaining sleeve having a boss thereon, the outside diameter of the retaining sleeve having the same inside diameter as the channel of the body, the inside contour of retaining sleeve being a stepped structure, the boss of the retaining sleeve matching with the retaining slot of the body.
The maximum outside diameter of compression sleeve may be a tight fit with the inside diameter of the body while the inside diameter of the compression sleeve isa clearance fit with the outside diameter of the signal transmission line.
The bore of the retaining sleeve may have two stepped shoulders therein, the outside diameter of the guide sleeve being a clearance fit with the inside diameter of the retaining sleeve, the boss of the guide sleeve entering and just falling into the first stepped shoulder in the bore of the retaining sleeve, the diameter of the boss of the guide sleeve being more than the inside diameter of the first stepped shoulder of the retaining sleeve, so that there is a clearance between the boss and the first stepped shoulder, the guide taper of the boss of the guide sleeve going forward and just falling into the cavity at the first stepped shoulder of the retaining sleeve, thus forming a buckle there, the center of the guide sleeve being hollow and the hollowness diameter being more than the outside diameter of the signal transmission line.
The center cavity may be formed by a spherical face of the locating sleeve at the connection of each channel and the spherical face of the body, the locating sleeve being retained in the body at the connection of each channel, the locating sleeve being hollow at the center and having a locating stepped shoulder therein near the center cavity.
The outside diameter of the sealing ring may be a tight fit with the inside diameter of the body, the inside diameter of the sealing ring having a radial elastic lip for holding the signal transmission line tightly in the ring.
The channel may consist of a guide sleeve, a leaf spring, a compression sleeve,:a sealing ring, and a locating sleeve.
Specific Description of an Embodiment of the Invention The invention will now be described, by way of non limiting example only, with reference to the accompanying drawing. -In the drawing, a connector block has at least two channels (18) therein for connecting àne signal transmission line (20) with multiple signal transmission lines (20) in -a blasting system for transferring blasting signals. One of channels (18) can be takenaS the input end of signal transmission and the other one (or ones), as the output end.
Wherein each channel (18) is opened to center cavity (16), thus enabling the input end and output end of transmission line (20) to transfer the blasting signal through center cavity (16). The size and shape of channel (18) matches signal transmission line (20).
When signal transmission line (20) is inserted into a channel from one end, it will be received and retained in the channel and the blasting signals are transferred through center cavity (16).
Insert the signal transmission line (20) into a channel (18) from one end in the operation, and then the transmission line (20) will be retained therein and locked by leaf spring (4). The shock wave of one transmission line can be safely transferred to the other transmission lines. Press the guide sleeve (1) in the direction of axis and the leaf spring (4) will be open, then the transmission line (20) can be pulled out of the channel (18).
Each receiving and retaining channel of body (3) has locating sleeve (19), sealing ring (6) at the outside of locating sleeve (19), compression sleeve (5) at the outside of sealing ring (6), leaf spring (4) at the outside of compression sleeve (5), retainin sleeve (2) at the outside of leaf spring (4), leaf spring (4) being located and axially compressed between compression sleeve (5) and second stepped shoulder (17) of retaining sleeve (2), guide sleeve (1) being retained in the bore of retaining sleeve (2)H The radial elastic leaf spring (4) consists of triangularly ridged teeth with a hole at the center, of which all ridges are bent to the same side and all ends are connected with a circumferential ring to form a closed structure.
The channels of body (4) transit from center cavity (16) to the ends of all channels including their transition sections, or from the small diameter sections at the center part to the large diameter sections at the ends of all channels, retaining slot (7) being made at the end of each channel, the outside contour of retaining sleeve (2) having boss (8 thereon, the outside diameter of retaining sleeve (2) being the same with the inside diameter of the channel of body (3), the inside contour of retaining sleeve (2) being stepped structure, boss (8) of retaining sleeve (2) matching with retaining slot (7) of body (3).
The maximum outside diameter of compression sleeve (5) is a tight fit with the inside diameter of body (3) while the inside diameter of compression sleeve (5) is a clearance fit with the outside diameter of signal transmission line (20).
The bore of retaining sleeve (2) have two stepped shoulders therein, the outside diameter of guide sleeve (1) is a clearance fit with the inside diameter of retaining sleeve (2), boss (10) of guide sleeve (1) enters and just falls into first stepped shoulder (9) in the bore of retaining sleeve (2), the diameter of boss (10) of guide sleeve (1) is more than the inside diameter of first stepped shoulder (9) of retaining sleeve (2): there is clearance between boss (10) and first stepped shoulder (9), guide taper (14) of boss (10) of guide sleeve (1) goes forward and just falls into the cavity at first stepped shoulder (9) of retaining sleeve (2), thus forming a buckle there, the center of guide sleeve is hollow and the hollowness diameter is more than the outside diameter of signal transmission line (20).
The center cavity (16) is formed by the spherical face (12) of locating sleeve (19) at the connection of each channel and the spherical face of body (3), locating sleeve (19) is retained in body (3) at the connection of each channel, locating sleeve (19) is hollow at the center and has locating stepped shoulder (13) therein near center cavity (16): The outside diameter of sealing ring (6) can be a tight fit with the inside diameter of body (3), the inside diameter of sealing ring (15) has radial elastic lip for holding signal transmission line (20) tightly in the ring.
The channel consists of guide sleeve (1), leaf spring (4), compression sleeve (5), sealing ring (6) and locating sleeve (19).

Claims (1)

1. A connector block has at least two channels therein for connecting one signal transmission line with multiple signal transmission lines in a blasting system for transferring blasting signals.
2. A connector block as claimed in claim 1, wherein one of the channels is the input end of signal transmission and one or more of the others are output ends, wherein each channel is opened to center cavity, thus enabling the input end and output end of transmission line to transfer the blasting signal through center cavity.
* 3. A connector block as claimed in claim 1, wherein the size and shape of channel matches the signal transmission line, wherein when signal transmission line is inserted into a channel from one end, it will be received and retained in the channel and the blasting signals are transferred through center cavity.
* 4. A connector block as claimed in claim 1, wherein, in use, the signal transmission line is inserted into a channel from one end in the operation, and then the transmission line will be retained therein and locked by a leaf spring, whereby the shock wave of one transmission line is safely transferred to the other transmission lines.
5. A connector block as claimed in claim 1, wherein, in use, a guide sleeve is pressed in the direction of its axis and the leaf spring will be open, then the transmission tine can be pulled out of the channel.
6. A connector block as claimed in claim 1, wherein each receiving and retainin channel of the body has a locating sleeve, a sealing ring at the outside of the locating sleeve, a compression sleeve at the outside of the sealing ring, the leaf spring located at the outside of the compression sleeve, a retaining sleeve at the outside of the, leaf spring which leaf spring is located and axially compressed between compression sleeve and second stepped shoulder of the retaining sleeve, with the guide sleeve being retained in the bore of the retaining sleeve.
7. A connector block as claimed in claim 1, wherein the leaf spring is a radial elastic leaf spring which consists of triangularly ridged teeth with a hole at the center,.
of which all ridges are bent to the same side and all ends are connected with a circumferential ring to form a closed structure.
9. A connector block as claimed in claim 1, wherein the maximum outside diameter of the compression sleeve is a tight fit with the inside diameter of the body while the inside diameter of compression sleeve is a clearance fit with the outside diameter of the signal transmission line.
10. A connector block as claimed in claim 1, wherein the bore of the retaining sleeve has two stepped shoulders therein, the outside diameter of the guide sleeve being a clearance fit with the inside diameter of the retaining sleeve, a boss of the guide sleeve enters and just falls into first stepped shoulder in the bore of the retaining sleeve, the diameter of boss of the guide sleeve being more than the inside diameter of the first stepped shoulder of the retaining sleeve, so that there is clearance between the boss and the first stepped shoulder, a guide taper of the boss of the guide sleeve going forward and just falling into the cavity at first stepped shoulder of the retaining sleeve, thus forming a buckle there, the center of the guide sleeve being hollow and the hollowness diameter being more than the outside diameter of the signal transmission line.
11. A connector block as claimed in claim 1, wherein a center cavity is formed by a spherical face of the locating sleeve at the connection of each channel and th spherical face of the body, the locating sleeve being retained in body at the connectioh of each channel, the locating sleeve being hollow at the center and having the locating stepped shoulder therein near the center cavity.
12. A connector block as claimed in claim 1, wherein the outside diameter of the sealing ring is tight fitted with the inside diameter of the body, the inside diameter of the sealing ring having a radial elastic lip for holding the signal transmission line tightjy in the ring.
13. A connector block as claimed in claim 1, wherein the channel consists of the guide sleeve, the leaf spring, the compression sleeve, the sealing ring, and the locating sleeve.
GB0808240.6A 2007-05-16 2008-05-07 Connector block Expired - Fee Related GB2449339B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA200703938A ZA200703938B (en) 2007-05-16 2007-05-16 Three-way connector block

Publications (3)

Publication Number Publication Date
GB0808240D0 GB0808240D0 (en) 2008-06-11
GB2449339A true GB2449339A (en) 2008-11-19
GB2449339B GB2449339B (en) 2012-05-02

Family

ID=39537370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0808240.6A Expired - Fee Related GB2449339B (en) 2007-05-16 2008-05-07 Connector block

Country Status (4)

Country Link
US (2) US20080295725A1 (en)
AU (1) AU2008201857A1 (en)
GB (1) GB2449339B (en)
ZA (1) ZA200703938B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101435685B (en) * 2008-12-24 2012-07-25 西安庆华民用爆破器材有限责任公司 Connecting block for detonation transmission system
FR3128218A1 (en) * 2021-10-20 2023-04-21 Etienne Lacroix Tous Artifices S.A. Device for sequencing the ignition of pyrotechnic products

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2927367A1 (en) * 2013-10-24 2015-06-11 Master Blaster Proprietary Limited Multi-way tubular channel connector block

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US2923239A (en) * 1957-07-26 1960-02-02 Ensign Bickford Co Ignition transmission line and systems including the same
DE1571272B1 (en) * 1966-03-05 1971-04-08 Mccormick Selph Associates Inc Detonation cord connector
GB2200977A (en) * 1987-02-11 1988-08-17 Aeci Ltd A propagating device for low energy fuses
US4771694A (en) * 1986-08-19 1988-09-20 The Ensign-Bickford Company Blasting signal transmission tube connector
US5515784A (en) * 1994-08-09 1996-05-14 The Ensign-Bickford Company Signal transmission devices and detonation systems using the same
US20040055494A1 (en) * 2002-09-25 2004-03-25 O'brien John P. Detonator junction for blasting networks
WO2005111534A1 (en) * 2004-05-19 2005-11-24 Maxamcorp.S.A.U. Direct load, detonator-less connector for shock tubes

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US1822056A (en) * 1929-02-07 1931-09-08 Gillette Vibber Company Inc Threadless pipe connecter
US3796158A (en) * 1966-02-01 1974-03-12 Us Navy Explosive luneberg lens warhead
US3499669A (en) * 1968-02-19 1970-03-10 Varian Associates Spherical connector having vacuum lines joined thereto via welded joints internal of the sphere
US4757764A (en) * 1985-12-20 1988-07-19 The Ensign-Bickford Company Nonelectric blasting initiation signal control system, method and transmission device therefor
DE3806404C2 (en) * 1988-02-29 1994-06-09 Raymond A Gmbh & Co Kg Detachable connector for semi-rigid pipes
JPH073119Y2 (en) * 1989-11-20 1995-01-30 シーケーディ株式会社 Pipe fitting
US5193856A (en) * 1990-05-24 1993-03-16 Shigeru Suzuki Pipe connector
SE507621C2 (en) * 1991-02-18 1998-06-29 Nitro Nobel Ab Coupling blocks for ignition devices
DE4137396A1 (en) * 1991-11-14 1993-05-19 Raymond A & Cie DETACHABLE CONNECTOR FOR SEMI-RIGID TUBES
US5413046A (en) * 1994-03-11 1995-05-09 The Ensign-Bickford Company Shock tube assembly
FR2772458B1 (en) * 1997-12-11 2000-01-14 Legris Sa DEVICE FOR QUICK CONNECTION OF A TUBE TO A RIGID ELEMENT WITH ANTI-EXTRACTION RING AND INTEGRITY INDICATOR
FR2797947B1 (en) * 1999-08-24 2001-11-16 Francesco Ambrico PYROTECHNIC DEVICE FOR CONNECTION AND DELAY
US6685230B1 (en) * 2000-07-26 2004-02-03 Olab S.R.L. Rapid connection for tubes
FR2830071B1 (en) * 2001-09-21 2003-11-14 Legris Sa INSTANT CONNECTION DEVICE
US20040108712A1 (en) * 2002-11-01 2004-06-10 Liang Tsai Tzu Quick connector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923239A (en) * 1957-07-26 1960-02-02 Ensign Bickford Co Ignition transmission line and systems including the same
DE1571272B1 (en) * 1966-03-05 1971-04-08 Mccormick Selph Associates Inc Detonation cord connector
US4771694A (en) * 1986-08-19 1988-09-20 The Ensign-Bickford Company Blasting signal transmission tube connector
GB2200977A (en) * 1987-02-11 1988-08-17 Aeci Ltd A propagating device for low energy fuses
US5515784A (en) * 1994-08-09 1996-05-14 The Ensign-Bickford Company Signal transmission devices and detonation systems using the same
US20040055494A1 (en) * 2002-09-25 2004-03-25 O'brien John P. Detonator junction for blasting networks
WO2005111534A1 (en) * 2004-05-19 2005-11-24 Maxamcorp.S.A.U. Direct load, detonator-less connector for shock tubes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101435685B (en) * 2008-12-24 2012-07-25 西安庆华民用爆破器材有限责任公司 Connecting block for detonation transmission system
FR3128218A1 (en) * 2021-10-20 2023-04-21 Etienne Lacroix Tous Artifices S.A. Device for sequencing the ignition of pyrotechnic products
WO2023067281A1 (en) * 2021-10-20 2023-04-27 Etienne Lacroix Tous Artifices S.A. Device for sequencing the ignition of pyrotechnic products

Also Published As

Publication number Publication date
ZA200703938B (en) 2009-07-29
GB0808240D0 (en) 2008-06-11
US20080295725A1 (en) 2008-12-04
GB2449339B (en) 2012-05-02
US20100326306A1 (en) 2010-12-30
AU2008201857A1 (en) 2008-12-04

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20230507