GB2049828A - An Injection Device for Injecting a Fixing Agent into a Drilled Hole in Masonry - Google Patents
An Injection Device for Injecting a Fixing Agent into a Drilled Hole in Masonry Download PDFInfo
- Publication number
- GB2049828A GB2049828A GB8010868A GB8010868A GB2049828A GB 2049828 A GB2049828 A GB 2049828A GB 8010868 A GB8010868 A GB 8010868A GB 8010868 A GB8010868 A GB 8010868A GB 2049828 A GB2049828 A GB 2049828A
- Authority
- GB
- United Kingdom
- Prior art keywords
- injection device
- injection
- nozzle
- hole
- cap
- 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.)
- Withdrawn
Links
- 238000002347 injection Methods 0.000 title claims abstract description 48
- 239000007924 injection Substances 0.000 title claims abstract description 48
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 9
- 239000000470 constituent Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 9
- 239000004568 cement Substances 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/015—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with pneumatically or hydraulically actuated piston or the like
Abstract
An injection device for injecting a fixing agent into a hole in masonry to anchor a fixing plug in the hole comprises a tubular body portion 1, a piston 10 slidably mounted in the body portion, an injection nozzle 2 having an outlet opening for fixing agent and a closure cap 5 having an inlet opening for connection to a fluid pressure source, each of the nozzle and the cap having a skirt portion which can be releasably and sealingly secured to either end of the body portion by push-fitting. <IMAGE>
Description
SPECIFICATION
An Injection Device for Injecting a Fixing Agent
Into a Drilled Hole in Masonry
This invention relates to a pneumatically operable injection device for injecting a fixing agent into a hole in masonry to anchor a fixing plug in the hole.
Manuaily operated injection devices for injecting a cement mixture into a hole drilled in masonry to anchor a fastening element in the hole are known. Filling the drilled hole requires a certain injection pressure which can be achieved manually only when using injection devices having a small volume. This means that the contents of such a manual injection device is only sufficient for a few drilled holes. Carrying out a series of mounting operations with a manual injection device is thus very time-consuming and expensive, quite apart from the physical strain put on the operator.
For injecting adhesive compositions, sealing compositions and the like, disposable cartridges are known which can be inserted into compressed air injection devices. An injection plunger inserted in the cartridge is pressed in the direction of a nozzle opening by the compressed air so that the composition in the cartridge is squeezed out. This process is advantageous only when the cartridge contains high-quality adhesive compositions or sealing compositions the cost of which is high compared to the cost of the disposable cartridge.
This process is not advantageous, however, when using a cement mixture, which is relatively cheap, because the extra cost of the disposable cartridge would not be economic.
The problem underlying the invention is to provide a pneumatically operable injection device which makes it possible to anchor a large number of fastening elements economically.
The present invention provides a pneumatically operable injection device for injecting a fixing agent into a hole, the device comprising a tubular body portion, a piston slidably mounted in the body portion, an injection nozzle having an outlet opening for fixing agent and a closure cap having an inlet opening for connection to a fluid pressure source, each of the nozzle and the cap having a skirt portion which can be releasably and sealingly secured to either end of the body portion by pushfitting.
Using an injection device of this construction it is possible to anchor a fixing plug in masonry as follows. After removing the injection nozzle from one end of the injection device, the fixing agent is introduced into the body portion of the injection device through that end, the other end being sealed by the closure cap and by the piston. When using a cement or mortar mixture as the fixing agent, the water is introduced first and then the cement. The two constituents are mixed in the injection device by means of a stirring rod. The injection nozzle is then replaced on the end of the body portion and brought into register with the hole in masonry, or, if the fixing plug has already been inserted in that hole, into register with a hole in the plug.By applying fluid pressure, for example compressed air, to the piston, the piston is pushed towards the nozzle outlet opening, and the fixing agent is injected into the hole in the masonry or the plug to anchor the plug in position. When the injection device has been completely emptied, the closure cap and the nozzle are removed from the body portion and replaced at opposite ends of the body portion. The injection device can now be used again in the same manner as described above. Because the positions of the closure cap and the nozzle are interchanged after each injection operation, it is unnecessary to return the piston to its original position before starting a fresh injection operation.This not only saves time but can also have a cleaning effect, when water is one of the constituents of the fixing agent, since any fixing agent remaining in the body portion after one injection operation will be washed away by water introduced into the body portion prior to the next injection operation.
As there is no screw connection between either the closure cap or nozzle and the body portion, it is possible to carry out a quick and trouble-free exchange even when the outer surface of the injection device is dirty. The absence of a positive or tight connection between either the nozzle or cap and the body portion is not detrimental because as the fixing agent is being injected, the injection device is pressed against the mouth of the drilled hole or against the fixing plug situated in the drilled hole.
To improve retention and for sealing engagement of the nozzle or cap on the body portion, it is of advantage if the wall thickness of its skirt portion decreases along its length in a direction towards its free edge.
Alternatively, or in addition to reducing the wall thickness cf each skirt portion a sealing ring can be arranged on each skirt portion.
To facilitate mounting and/or to improve retention of each skirt portion on the body portion; the skirt portion can have one or more slots beginning at its free edge and extending along a portion of its length.
A pneumatically operable injection device constructed in accordance with the present invention, will now be described, by way of example only, with reference to the accompanying drawing the single figure of which is a part sectional side elevation of the device.
Referring to the accompanying drawing the injection device comprises a cylindrical body portion 1, preferably metal, one end of which receives an injection nozzle 2 and the other end of which receives a closure cap 5. A piston 10 is slidably mounted in the body portion 1.
Each of the nozzle 2 and the cap 5 is formed from resilient, preferably, plastics material and has a skirt portion 3 which can be releasably and sealingly secured to either end of the body portion by push-fitting. Each end of the body portion is conical (it could be cylindrical) in form.
The wall thickness of each skirt portion decreases along its length in a direction towards its free edge. This improves retention and/or sealing engagement on the body portion. To achieve a resilient holding action, a slot 4 is provided in each skirt portion beginning at its free edge and extending over a portion of its length.
To improve sealing a sealing ring 12 is arranged on the underside of the top portion of the cap 5. A similar sealing ring (not shown) could be provided for the nozzle 2.
The skirt portions 3 on the closure cap 5 and the injection nozzle 2 have the same construction so that their positions on the body portion 1 can be interchanged.
Closure cap 5 has an opening in its top portion which receives an inlet connector 6 of a compressed air gun 8. A nut 7 can be screwed onto the connector 6 to hold the cap on the gun.
To introduce fixing agent into the body portion 1 the nozzle must first be removed. It is also possible separately to introduce the individual constituents of the fixing agent mixture and then to mix them in the injection device by means of a stirring rod. The nozzle outlet opening is closed by a releasable cap or stopper 11 to prevent premature ejection of the fixing agent.
In operation, compressed air is admitted into the space between the underside of the top portion of the cap 5 and piston 10 via a compressed air line 9 and the gun 8, so that pressure can build up in the said space. This pressure causes the injection plunger 10 to move towards the nozzle and any fixing agent in the body portion is ejected through an outlet opening in the nozzle.
Claims (7)
1. A pneumatically operable injection device for injecting a fixing agent into a hole in masonry to anchor a fixing plug in the hole, the device comprising a tubular body portion, a piston slidably mounted in the body portion, an injection nozzle having an outlet opening for fixing agent and a closure cap having an inlet opening for connection to a fluid pressure source, each of the nozzle and the cap having a skirt portion which can be releasably and sealingly secured to either end of the body portion by push-fitting.
2. An injection device as claimed in claim 1, in which the wall thickness of each skirt portion decreases along its length in a direction towards its free edge.
3. An injection device as claimed in claim 1 or claim 2, in which a sealing ring is provided in each skirt portion.
4. An injection device as claimed in any one of claims 1 to 3, in which each skirt portion has one or more slots beginning at its free edge and extending along a portion of its length.
5. An injection device which has a compressed air-operated injection plunger and of which one end is provided with a nozzle cap having an injection opening and the other end is provided with a lid connection to the compressed air line, for injecting a hardenable binding agent consisting of several constituents into a hole drilled in masonry to anchor a fastening element inserted in the drilled hole, wherein the nozzle cap and the lid each have a receiving portion that is slipped over one of the ends of the tubular injection device and seals the device, the injection opening of the nozzle cap can be closed by a stopper, cap or the like, and each of the end faces of the injection plunger may be used as a pressure-receiving face as well as a pressuredelivery face.
6. A pneumatically operable injection device substantially as-hereinbefore described with reference to, and as illustrated by the accompanying drawing.
7. A method of anchoring a fixing plug in a hole in masonry, the method employing an injection device as claimed in any one of claims 1 to 6.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792913188 DE2913188A1 (en) | 1979-04-02 | 1979-04-02 | SPRAYING DEVICE FOR INJECTING A BINDING AGENT INTO A MASONRY HOLE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2049828A true GB2049828A (en) | 1980-12-31 |
Family
ID=6067218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8010868A Withdrawn GB2049828A (en) | 1979-04-02 | 1980-04-01 | An Injection Device for Injecting a Fixing Agent into a Drilled Hole in Masonry |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS55134669A (en) |
| BE (1) | BE882002A (en) |
| BR (1) | BR8002010A (en) |
| DE (1) | DE2913188A1 (en) |
| DK (1) | DK81880A (en) |
| ES (1) | ES249172Y (en) |
| FR (1) | FR2453252A1 (en) |
| GB (1) | GB2049828A (en) |
| GR (1) | GR66664B (en) |
| HU (1) | HU178151B (en) |
| IT (1) | IT1130379B (en) |
| NL (1) | NL8000957A (en) |
| SE (1) | SE8001708L (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2391269A (en) * | 2002-07-02 | 2004-02-04 | Peter Prickett | Mechanical grouting and repointing device |
| US7237695B2 (en) | 2004-06-14 | 2007-07-03 | Colin Dee | Mechanical grouting and re-pointing device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57132576A (en) * | 1981-02-10 | 1982-08-16 | Matsushita Electric Ind Co Ltd | Application device of viscous fluid |
| CN103418527B (en) * | 2013-08-16 | 2015-09-23 | 天威新能源控股有限公司 | handheld pneumatic glue gun |
| DE102018120875A1 (en) | 2017-08-28 | 2019-02-28 | Djevair Aslani | CARTRIDGE PRESS |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2305238A (en) * | 1938-12-05 | 1942-12-15 | W M Dutton & Sons Co | Calking gun |
| US3136456A (en) * | 1961-06-02 | 1964-06-09 | William A Sherbondy | Caulking mechanism |
| US3439839A (en) * | 1965-09-16 | 1969-04-22 | Prod Res & Chem Corp | Sealant dispensing device |
| US3813012A (en) * | 1973-03-12 | 1974-05-28 | Prod Res & Chem Corp | Air powered sealant dispenser, including flexible tubular conduits as valve means |
-
1979
- 1979-04-02 DE DE19792913188 patent/DE2913188A1/en not_active Withdrawn
-
1980
- 1980-02-14 GR GR61214A patent/GR66664B/el unknown
- 1980-02-15 NL NL8000957A patent/NL8000957A/en not_active Application Discontinuation
- 1980-02-26 DK DK81880A patent/DK81880A/en unknown
- 1980-02-29 BE BE0/199609A patent/BE882002A/en unknown
- 1980-03-05 SE SE8001708A patent/SE8001708L/en not_active Application Discontinuation
- 1980-03-06 ES ES1980249172U patent/ES249172Y/en not_active Expired
- 1980-03-06 HU HU8080519A patent/HU178151B/en unknown
- 1980-03-27 FR FR8006874A patent/FR2453252A1/fr active Pending
- 1980-03-31 IT IT21066/80A patent/IT1130379B/en active
- 1980-04-01 GB GB8010868A patent/GB2049828A/en not_active Withdrawn
- 1980-04-01 BR BR8002010A patent/BR8002010A/en unknown
- 1980-04-02 JP JP4205880A patent/JPS55134669A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2391269A (en) * | 2002-07-02 | 2004-02-04 | Peter Prickett | Mechanical grouting and repointing device |
| GB2391269B (en) * | 2002-07-02 | 2004-06-23 | Peter Prickett | Mechanical grouting and repointing device |
| US7237695B2 (en) | 2004-06-14 | 2007-07-03 | Colin Dee | Mechanical grouting and re-pointing device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2913188A1 (en) | 1980-10-23 |
| BE882002A (en) | 1980-06-16 |
| IT1130379B (en) | 1986-06-11 |
| FR2453252A1 (en) | 1980-10-31 |
| ES249172U (en) | 1980-06-01 |
| ES249172Y (en) | 1980-12-01 |
| IT8021066A0 (en) | 1980-03-31 |
| DK81880A (en) | 1980-10-03 |
| GR66664B (en) | 1981-04-07 |
| JPS55134669A (en) | 1980-10-20 |
| BR8002010A (en) | 1980-11-25 |
| SE8001708L (en) | 1980-10-03 |
| NL8000957A (en) | 1980-10-06 |
| HU178151B (en) | 1982-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |