CN2166227Y - Connector for props - Google Patents
Connector for props Download PDFInfo
- Publication number
- CN2166227Y CN2166227Y CN 93237357 CN93237357U CN2166227Y CN 2166227 Y CN2166227 Y CN 2166227Y CN 93237357 CN93237357 CN 93237357 CN 93237357 U CN93237357 U CN 93237357U CN 2166227 Y CN2166227 Y CN 2166227Y
- Authority
- CN
- China
- Prior art keywords
- prefastening
- outer tube
- coupling according
- hole
- bayonet socket
- 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
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to a pretension type connector for supporting columns and is used for preventing supporting columns from collapsing and reinforcing the integration for a blast-winning technology working surface or a conventionally mechanized coal winning technology working surface. The pretension type connector for supporting columns is provided with an outer tube, and both ends of the outer tube are respectively provided with an end cover and a locking device. A draw rod and a pressure spring are arranged in the outer tube, and the pressure spring is sheathed on the draw rod. The draw rod is pulled, and the pressure spring generates pretension force. The end cover is provided with a hook, the draw rod penetrates through the locking device to be connected with a crossed coupling head, and the crossed coupling head is also connected with a left bayonet slice and a right bayonet slice. The utility model has the advantages of simple structure, easy fabrication, large pulling force, wide regulation range, and convenient and safe operation.
Description
The utility model relates to that a kind of big gun is adopted or the coupling arrangement of conventional face individual prop, a kind of prefastening pillar coupling that is used for individual prop of more specifically saying so.
At present, under the coal mine big gun adopt or conventional face individual prop stability management problem more and more outstanding, especially seam inclination seems more outstanding greater than 25 ° work plane.In order to prevent that pillar from unloading automatically, crookedly pound the people, and increase the stability of arranging the new pillar that supports near rib two, and increase the anti-dynamic pressure ability of pillar, often adopt the seizing wire or the rope made of hemp that an adjacent intercolumniation is coupled to each other, the shortcoming of this form is: a rope need be tens pillars, a certain pillar as the centre damages, and must untie many pillars of same rope direct bearing, could change the pillar that damages, complicated operation, the rope waste is big; Secondly, the spacing ability of rope does not have the effect of integral reinforcing substantially.
In addition, existing indivedual mining screw couplings, by rotating screw bolt tension coupling, its shortcoming is that 1. screw thread is strained complicated operation; 2. subsurface environment is abominable, and the screw thread easy-to-rust damages; 3. adjustable range is little.
The purpose of this utility model is to have designed a kind of simple to operately in order to overcome above-mentioned the deficiencies in the prior art part, pretightning force is arranged, the prefastening pillar coupling that pulling force is big.
The purpose of this utility model can realize in the following manner: a kind of prefastening pillar coupling, include outer tube, the one end is mounted with end cap, be mounted with pull hook in the shoulder hole of end cap, one end of pull bar is provided with catch, compression spring sleeve is contained on the pull bar, and be inserted in the hole of outer tube with pull bar, locking device is placed in the other end of outer tube, after pull bar passes locking device, link to each other with the cross coupling head with bearing pin, one end of bearing pin is provided with cottor pin, links to each other with right bayonet socket sheet with the left bayonet socket sheet of semi-annular shape by attachment pegs on another connecting hole of cross coupling head, and the other end of left bayonet socket sheet and right bayonet socket sheet has adjustment hole, regulate pin and be inserted in the adjustment hole, the termination of left bayonet socket sheet has connection holes.Connection holes is provided with adjustable ring.
The utility model compared with prior art has following advantage: 1. length can be regulated as required automatically; 2. the pretension function is arranged; 3. simple to operate; 4. pulling force is big, and firm ability is strong.
Description of drawings:
Accompanying drawing is the utility model structural representation.
The utility model is described in further detail with reference to the accompanying drawings:
Shown in accompanying drawing: a kind of prefastening pillar coupling that is applicable to that the colliery big gun is adopted or the conventional face supporting is used, include the outer tube 4 of pipe shape, the one end is mounted with end cap 2, be mounted with pull hook 1 in the shoulder hole of end cap 2, an end that is shaft-like pull bar 18 is provided with catch 3, and stage clip 19 is sleeved on the pull bar 18, and is inserted in the hole of outer tube 4 with pull bar 18, one side milling of pull bar 18 has the inclined-plane, and locking device is placed in the other end of outer tube 4.Locking device locks by the inclined-plane of pull bar 18.Described locking device comprises positive stop 20, has shoulder hole on it, and it is fixed on the end of outer tube 4, has screwed hole in shoulder hole axis normal direction, is mounted with screw rod 6 on it, and screw rod 6 is provided with catch 7, and its termination is mounted with handgrip 5.The shoulder hole that pull bar 18 passes the positive stop 20 on the locking device links with bearing pin 8 and cross coupling head 17, one termination of bearing pin 8 is provided with cottor pin 9, link to each other with right bayonet socket sheet 14 1 ends with the left bayonet socket sheet 10 of semi-annular shape by attachment pegs 15 on another connecting hole of cross coupling head 17, the other end of left side bayonet socket sheet 10 and right bayonet socket sheet 14 has adjustment hole 16, regulate pin 12 and be inserted in the adjustment hole 16, described adjusting pin 12 is a wedge shape.Regulate pin 12 usefulness chains 11 and hang on the left bayonet socket sheet 10, be difficult for during use dropping.Have connection holes 21 in the termination of left bayonet socket sheet 10, be mounted with adjustable ring 13 on it.Adjustable ring 13 plays the length range of regulating coupling.
Claims (9)
1, a kind of prefastening pillar coupling that is applicable to that big gun is adopted or the conventional face supporting is used, it is characterized in that: include outer tube (4), the one end is mounted with end cap (2), be mounted with pull hook (1) in the shoulder hole of end cap (2), one end of pull bar (18) is provided with catch (3), stage clip (19) is sleeved on the pull bar (18), and together be inserted in the hole of outer tube (4) with pull bar (18), locking device is placed in outer tube (4) other end, pull bar (18) passes locking device and links to each other with cross coupling head (17) with bearing pin (8), one end of bearing pin (8) is provided with cottor pin (9), link to each other with right bayonet socket sheet (14) one ends with the left bayonet socket sheet (10) of semi-annular shape by attachment pegs (15) on another connecting hole of cross coupling head (17), the other end of left side bayonet socket sheet (10) and right bayonet socket sheet (14) has adjustment hole (16), regulate pin (12) and be inserted in the adjustment hole (16), have connection holes (21) in the termination of left bayonet socket sheet (10).
2, prefastening pillar coupling according to claim 1, it is characterized in that: described locking device includes positive stop (20), it has a shoulder hole, one side links to each other with outer tube (4), have screwed hole with shoulder hole axis normal direction, be mounted with screw rod (6) on the hole, screw rod (6) is provided with catch (7), is mounted with handgrip (5) in the upper end of screw rod (6).
3, prefastening pillar coupling according to claim 1 and 2, it is characterized in that: a side milling of described pull bar (18) has an inclined-plane.
4, prefastening pillar coupling according to claim 1 and 2 is characterized in that: described adjusting pin (12) is a wedge shape.
5, prefastening pillar coupling according to claim 3 is characterized in that: described adjusting pin (12) is a wedge shape.
6, prefastening pillar coupling according to claim 1 and 2 is characterized in that: be mounted with adjustable ring (13) on the described connection holes (21).
7, prefastening pillar coupling according to claim 3 is characterized in that: be mounted with adjustable ring (13) on the described connection holes (21).
8, prefastening pillar coupling according to claim 4 is characterized in that: be mounted with adjustable ring (13) on the described connection holes (21).
9, prefastening pillar coupling according to claim 5 is characterized in that: be mounted with adjustable ring (13) on the described connection holes (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93237357 CN2166227Y (en) | 1993-07-27 | 1993-07-27 | Connector for props |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93237357 CN2166227Y (en) | 1993-07-27 | 1993-07-27 | Connector for props |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2166227Y true CN2166227Y (en) | 1994-05-25 |
Family
ID=33812327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93237357 Expired - Fee Related CN2166227Y (en) | 1993-07-27 | 1993-07-27 | Connector for props |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2166227Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191943A (en) * | 2011-03-28 | 2011-09-21 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | Chained tilting prevention device for advanced support |
| CN106368724A (en) * | 2016-11-03 | 2017-02-01 | 中国矿业大学 | Mechanical constant-resistance single prop pre-tightening device and method |
-
1993
- 1993-07-27 CN CN 93237357 patent/CN2166227Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191943A (en) * | 2011-03-28 | 2011-09-21 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | Chained tilting prevention device for advanced support |
| CN106368724A (en) * | 2016-11-03 | 2017-02-01 | 中国矿业大学 | Mechanical constant-resistance single prop pre-tightening device and method |
| WO2018082148A1 (en) * | 2016-11-03 | 2018-05-11 | 中国矿业大学 | Device and method for pre-loading mechanical single prop with constant resistance |
| US10385692B2 (en) | 2016-11-03 | 2019-08-20 | China University Of Mining And Technology | Apparatus and method for pre-loading mechanical constant-resistance single prop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |