CN206737935U - U-shaped steel support is pressed in a kind of allowing for reinforcement - Google Patents
U-shaped steel support is pressed in a kind of allowing for reinforcement Download PDFInfo
- Publication number
- CN206737935U CN206737935U CN201720338981.XU CN201720338981U CN206737935U CN 206737935 U CN206737935 U CN 206737935U CN 201720338981 U CN201720338981 U CN 201720338981U CN 206737935 U CN206737935 U CN 206737935U
- Authority
- CN
- China
- Prior art keywords
- support
- shaped steel
- pin
- tunnel
- steel
- 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- Withdrawn - After Issue
Links
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
It the utility model is related to a kind of allowing for reinforcement and press U-shaped steel support,Including the first support shaped steel for being arranged on tunnel both sides and arranging vertically,The upper end of first support shaped steel is provided with the second support shaped steel for supporting country rock at the top of the arc of tunnel,Second support shaped steel bends to curved arcuate structure,The both ends of second support shaped steel form the removable cooperation of vertical direction with the upper end of the first support shaped steel respectively,First,The lap-joint of second support shaped steel be provided with limit sliding allow press mechanism be used for stop second support shaped steel to move down,It will can allow length direction arranged for interval of the pressure U-shaped steel support along tunnel,Pressure from surrounding rock release is transferred on the second support shaped steel at the top of tunnel,So as to be supplied to country rock at the top of tunnel it is sufficient allow pressure amount,U-shaped steel support is avoided to reach the flexing that its yield strength causes U-shaped steel support,Kicking and crumple,And then ensure effective support of the country rock at the top of arc to tunnel,Play allowing for the pressure from surrounding rock at the top of the arc to tunnel and press release and rigid support.
Description
Technical field
It the utility model is related to roadway construction technical field, and in particular to U-shaped steel support is pressed in a kind of allowing for reinforcement.
Background technology
During roadway construction, to implement the support to tunnel palisades, supporting steel frame is typically disposed with tunnel, is propped up
It is mostly truss structure to support steelframe, plays the top to tunnel palisades and the support of waist country rock, avoids top and the waist in tunnel
The problem of tunnel caused by the pressure release of portion's country rock caves in, tunnel is during construction, the country rock at the top of the arc in tunnel
Pressure is applied to supporting steel frame, and the pressure from surrounding rock release at the top of the arc in tunnel is transferred to the waist both sides in tunnel, so as to apply
Compression to supporting steel frame waist；A large amount of roadway construction Monitoring Datas show, if pressure from surrounding rock is released at the top of the arc in tunnel
Let off soon, may result in the hard breakdown of supporting steel frame, so as to cause the flexing of supporting steel frame, kicking and crumple, and then produce
Great potential safety hazard.
Utility model content
The purpose of this utility model is just to provide a kind of allowing for reinforcement and presses U-shaped steel support, can play to tunnel-surrounding
Effective support of country rock, play and release and rigid support are pressed to allowing for tunnel-surrounding pressure from surrounding rock.
To achieve the above object, the technical scheme of this combining structure utility model use is：
A kind of reinforcement allows pressure U-shaped steel support, including first for being arranged on tunnel both sides and arranging vertically to support shaped steel,
The upper end of the first support shaped steel is provided with the second support shaped steel for supporting country rock at the top of tunnel arc, described second
Support shaped steel bends to curved arcuate structure, and the both ends of the second support shaped steel are vertical with the upper end composition of the first support shaped steel respectively
Direction is removable to be coordinated, and the lap-joint of the both ends of the second support shaped steel and the first support shaped steel, which is provided with, to be limited sliding and allow pressure
Mechanism, it is described limit sliding allow press mechanism be used for stop second support shaped steel to move down.
The also existing supplementary features of the utility model are：
The section of the first, second support shaped steel is "u"-shaped, at the notch of the first, second support shaped steel
First, second flange is respectively arranged with, the second support shaped steel is plugged on the notch inwall of the first support shaped steel and second turns over
While ride upon on the first flange.
The restriction sliding allows press mechanism to include being arranged on the pin at the second support shaped steel both ends, and the pin is arranged on key seat
Interior, the key seat is fixed in the notch of the second support shaped steel, and the bottom land of the end of the second support shaped steel is provided with opening, described
Connected between pin and key seat by spring, the pin is protruded out in opening, and the upper end slot bottom of the first support shaped steel is set
There is the pin-and-hole passed through for pin, the pin-and-hole, which is located on the mobile route of pin, to be arranged.
Bar hole is provided with second flange of the second support shaped steel, bar hole hole length direction is along second
Support the length direction arrangement of shaped steel, be provided with guide blot in bar hole, the guide blot through bar hole and with first
Support the first flange connection of shaped steel.
The pin is in integrally square, and the connection end of the pin and key seat is provided with locking shell fragment, and the locking shell fragment is whole
Body is in frid shape, and one end of the pin is fixed at the bottom land of locking shell fragment, and the both sides edge of locking shell fragment the length side of pin
To overhanging, support spring is provided between two sides of locking shell fragment and pin, is provided with what is coincide with pin profile on the key seat
Opening, the spring is arranged on the bottom of opening, is additionally provided with limiting plate in the opening, the limiting plate and opening inwall it
Between form the card interface for the locking shell fragment of clamping.
The clamping box for clamping pin is provided with the first support shaped steel, the opening of the clamping box is located at pin-and-hole
Locate, limited impression is provided with clamping box, be provided with the pin and form the plush copper being engaged by clamping with limited impression.
Described to allow length direction of the pressure U-shaped steel support along tunnel to be arranged at intervals with multiple, the adjacent pressure U-shaped steel that allows
It is described that depression bar can be stretched along the length direction in tunnel by allowing depression bar to connect between first support shaped steel of support, it is described
Allow the both ends of depression bar to allow the first of compressed steel support to support the sleeve connection set on shaped steel with adjacent respectively, the sleeve with
First support shaped steel, which is formed, to be flexibly connected, it is adjacent allow between pressure U-shaped steel support it is also arranged in a crossed manner have a two support steel bars, it is described
Support steel bar curved arrangement and both ends allow the first of pressure U-shaped steel support to support the sleeve set on shaped steel to fix with adjacent.
Described to allow depression bar to allow depression bar including first, second, described first allows one end of depression bar to be provided with shank, and described
One allows depression bar and second to allow the linkage section of depression bar to be provided with inserting groove for planting shank, and described second allows depression bar and first
Allow between depression bar set and allow pressing spring.
Anchor pole is provided with the crosspoint of the two supports steel bar, the anchor pole is vertical and is plugged on the arched top in tunnel
Portion.
Compared with prior art, the technique effect that the utility model possesses is：By it is above-mentioned allow pressure U-shaped steel support along
The length direction arranged for interval in tunnel, when tunnel top pressure from surrounding rock discharges, it is transferred on the second support shaped steel, so as to be supplied to
Pressure amount that what country rock was sufficient at the top of tunnel allow, steel bracket is avoided due to the flexing of steel bracket caused by plastic deformation, kicking and crumple,
And then ensure effective support to tunnel-surrounding country rock, play and release and rigid support are pressed to allowing for tunnel-surrounding pressure from surrounding rock.
Brief description of the drawings
Fig. 1 is two structural representations for allowing pressure U-shaped steel support to connect strengthened；
Fig. 2 and Fig. 3 is that allow in pressure U-shaped steel support first strengthened supports shaped steel and second to support the cooperation of shaped steel
Two kinds of end structure illustrations；
Fig. 4 is the end structure illustration of the second support shaped steel；
Fig. 5 is the end structure illustration of the first support shaped steel；
Fig. 6 is the structural representation of pin；
Fig. 7 is the structural representation of key seat；
Fig. 8 is to allow the part-structure schematic diagram of depression bar.
Embodiment
With reference to Fig. 1 to Fig. 8, the utility model is further described：
A kind of reinforcement allows pressure U-shaped steel support, including first for being arranged on tunnel both sides and arranging vertically to support shaped steel
10, the upper end of the first support shaped steel 10 is provided with the second support shaped steel 20 for supporting country rock at the top of the arc of tunnel, institute
State the second support shaped steel 10,20 and bend to curved arcuate structure, the both ends of the second support shaped steel 20 respectively with the first support type
The upper end of steel 10 forms the removable cooperation of vertical direction, the both ends of the second support shaped steel 20 and taking for the first support shaped steel 10
The place of connecing, which is provided with, to be limited sliding and allows press mechanism, it is described limit sliding allow press mechanism be used for stop second support moving down for shaped steel 20；
With reference to shown in Fig. 1, the U-shaped steel stent applications of said structure are in tunnel, and along between the length direction in tunnel
Every setting, when the arc top pressure from surrounding rock release in tunnel so that the second support shaped steel 20 is supported under shaped steel 10 along first
Move, so as to be supplied to the preset space that pressure from surrounding rock release is sufficient at the top of the arc in tunnel, so as to avoid due to steel bracket due to
Flexing, kicking and crumple caused by pressure are born suddenly, when the second support shaped steel 20 drops to least significant end, is slided using limiting
Move and allow press mechanism to implement the stop declined to the second support shaped steel 20, so as to form the rigid support to roadway surrounding rock,
Avoid the further deformation of country rock at the top of tunnel；
U-shaped steel support disclosed in the utility model can implement the resilient support of rear steel first soft to country rock at the top of tunnel,
So as to improve the strong degree to country rock support at the top of tunnel.
As preferred scheme of the present utility model, the section of the first, second support shaped steel 10,20 is "u"-shaped,
First, second flange 11,21, second support type are respectively arranged with the notch of the first, second support shaped steel 10,20
Steel 20 is plugged on the notch inwall of the first support shaped steel 10 and the second flange 21 is ridden upon on the first flange 11；
With reference to shown in Fig. 4 and Fig. 5, the section of above-mentioned first, second support shaped steel 10,20 is "u"-shaped, and it can
The anti-twisting property born is most strong, so as to improve the structural strength of steel bracket in itself in itself from structure.
Further, the restriction sliding allows press mechanism to include being arranged on the pin 30 at the both ends of the second support shaped steel 20, institute
State pin 30 to be arranged in key seat 40, the key seat 40 is fixed in the notch of the second support shaped steel 20, the second support shaped steel 20
The bottom land of end is provided with opening 22, is connected between the pin 30 and key seat 40 by spring 52, the pin 30 protrudes out to opening
In 22, the upper end slot bottom of the first support shaped steel 10 is provided with the pin-and-hole 12 passed through for pin 30, and the pin-and-hole 12 is located at
Arranged on the mobile route of pin 30；
During above-mentioned roadway surrounding rock pressure release so that the second support shaped steel 20 supports the slide downward of shaped steel 10 along first,
Due to setting the key seat 40 of pin 30 to be fixed at the notch of the second support shaped steel 20, pass through spring between the key seat 40 and pin 30
52 connection so that pin 30 stretch into the opening 22 of the second support shaped steel 20 and with first support shaped steel 10 bottom land against, when
When second support shaped steel 20 drops to specified point, under the elastic reaction of spring 52 so that pin 30 springs into the first support shaped steel 10
Pin-and-hole 12 in, pin 30 now is located at opening 22 can be in pin-and-hole 12, so as to realize the first support shaped steel 10 and the second support type
Connection between steel 20, to realize the stop moved down to the second support shaped steel 20, the second support shaped steel 20 now is realized to lane
Road positions the rigid support of country rock.
Bar hole 211, the hole length direction of bar hole 211 are provided with second flange 21 of the second support shaped steel 20
Arranged along the length direction of the second support shaped steel 20, be provided with guide blot 23 in bar hole 211, the guide blot 23 is worn
Cross bar hole 211 and be connected with the first flange 11 of the first support shaped steel 10；
Above-mentioned second support shaped steel 20 slides positioned at the first support shaped steel 10, using the guide and limit of guide blot 23,
On the one hand avoid leading because the elasticity of spring 52 causes generation displacement between the first support shaped steel 10 and the second support shaped steel 20
Cause the dangerous situation of steel bracket separation, another convenient accurate guiding realized to the first support vertical sliding of shaped steel 10, so as to really
Protecting the first support shaped steel 10 can be accurately along the notch slide downward of the second support shaped steel 20, when under the second support shaped steel 20
The opening 22 for being down to the second described support shaped steel 20 is alignd with the pin-and-hole 12 on the first support shaped steel 10, in the elasticity of spring 52
Under support, so that pin 30 is sprung into pin-and-hole 12 and opening 22, the limitation moved down to the second support shaped steel 20 is realized.
Further, it is in square that the pin 30 is overall, and the connection end of the pin 30 and key seat 40 is provided with locking shell fragment
31, the overall locking shell fragment 31 is in frid shape, and one end of the pin 30 is fixed at the bottom land of locking shell fragment 31, locking shell fragment
The length direction that 31 both sides edge pin 30 is overhang, and support spring is provided between two sides of locking shell fragment 31 and pin 30
32, the opening 41 being coincide with the profile of pin 30 is provided with the key seat 40, the spring 52 is arranged on the bottom of opening 41, described
Limiting plate 43 is additionally provided with opening 41, is formed between 41 inwalls of the limiting plate 43 and opening for the locking shell fragment 31 of clamping
Card interface；
The above-mentioned holding of pin 30 has realized the assembling to pin 30 and key seat 40 in the opening 41 on key seat 40, specifically,
When pin 30 is squeezed into opening 41, in the presence of extruding force, locking shell fragment 31 deforms, so as in card inlet, when pin 30 squeezes
When entering position deeper in opening 41, and locking shell fragment 31 protrudes out between limiting plate 43 and 41 inwalls of opening the card formed
In interface, under the elastic anchorage force of support spring 32, so as to by locking shell fragment 31 be caught in limiting plate 43 and the inwall of opening 41 it
Between in the card interface that is formed；
Under the elastic reaction of spring 52, pin 30 is sprung into the pin-and-hole 12 of the first support shaped steel 10, in the limit of limiting plate 43
Under the effect of position, pin 30 is avoided to spring into position too deep in the pin-and-hole 12 of the first support shaped steel 10, it is ensured that the middle position of pin 30
The centre position of opening 22 of shaped steel 20 is supported in the pin-and-hole 12 and second of the first support shaped steel 10, it is ensured that the support of pin 30 itself is strong
Degree, pin 30 is avoided to cause to occur skimming curved phenomenon due to bearing larger compression.
To further ensure that pin 30 is in the opening 22 of the support shaped steel 20 of pin-and-hole 12 and second of the first support shaped steel 10
Between position, be provided with clamping box 50 for clamping pin 30, the opening position of the clamping box 50 on the first support shaped steel 10
At pin-and-hole 12, limited impression 51 is provided with clamping box 50, is provided with the pin 30 and matches somebody with somebody with the composition clamping of limited impression 51
The plush copper 33 of conjunction；
Above-mentioned pin 30 is sprung into clamping box 50, and cause pin 30 on the holding of plush copper 33 connect it is spacing recessed in box 50
In groove 51, so as to realize the further positioning to pin 30, the random movement of pin 30 is avoided.
To avoid pressure from surrounding rock from causing the first of steel bracket to support the straight line of shaped steel 10 to produce answering along tunnel length direction
Power, described to allow length direction of the compressed steel support along tunnel to be arranged at intervals with multiple, adjacent to allow the first of compressed steel support
Support between shaped steel 10 by allowing depression bar to connect, described depression bar can be stretched along the length direction in tunnel, the depression bar that allows
Both ends allow the first of compressed steel support to support the sleeve 70 set on shaped steel 10 to be connected with adjacent respectively, the sleeve 70 and the
One support shaped steel 10, which is formed, to be flexibly connected, it is adjacent allow between compressed steel support it is also arranged in a crossed manner have a two support steel bars 80, it is described
Support the curved arrangement of steel bar 80 and both ends allow the first of compressed steel support to support the sleeve 70 set on shaped steel 10 solid with adjacent
It is fixed；
The pressure release that above-mentioned support steel bar 80 bears country rock is transferred to both ends and is transferred on sleeve 70, due to country rock
Pressure release direction it is changeable, be also so as to be transferred to adjacent first, second stress direction allowed on depression bar 61,62 that allows
Changeable so that the first support shaped steel 10 can be supplied to the first support shaped steel 10 sufficient along allowing depression bar to move so as to realize
The situation for allowing compressive strain distance, avoiding the first flexural deformation caused by meeting with stresses suddenly of support shaped steel 10.
It is described to allow depression bar to allow depression bar 61,62 including first, second with reference to shown in Fig. 8, described first one end for allowing depression bar 61
It is provided with shank, described first allows depression bar 61 and second to allow the linkage section of depression bar 62 to be provided with grafting for planting shank
Groove, described second allows depression bar 62 and first to allow between depression bar 61 set and allow pressing spring 63；
It is above-mentioned to allow the first, second of the depression bar cooperation allowed between depression bar 61,62, so as to realize the adjacent compressed steel support that allows
First support shaped steel 10 elder generation it is soft after steel resilient support, and then improve to roadway surrounding rock support strong degree.
Specifically, anchor pole 81 is provided with the crosspoint of the two supports steel bar 80, the anchor pole 81 is vertical and is plugged on
At the top of the arc in tunnel；
The pressure of country rock release at the top of tunnel is applied to anchor pole 81 by above-mentioned anchor pole 81, so as to discharge to two support steel bars 80
On.
It should be noted that above example is only to illustrate the technical solution of the utility model, it is rather than its limitations, most
The utility model is described in detail with reference to the foregoing embodiments for pipe, it will be understood by those within the art that：Its
The technical scheme described in foregoing embodiments can still be modified, or which part technical characteristic is equal
Replace, and these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technical side
The spirit and scope of case.
Claims (9)
1. U-shaped steel support is pressed in a kind of allowing for reinforcement, it is characterised in that：Including be arranged on tunnel both sides and arrange vertically first
Shaped steel (10) is supported, the upper end of the first support shaped steel (10) is provided with second for supporting country rock at the top of the arc of tunnel
Shaped steel (20) is supportted, the second support shaped steel (10,20) bends to curved arcuate structure, the both ends of the second support shaped steel (20)
The removable cooperation of vertical direction, the both ends of the second support shaped steel (20) are formed with the upper end of the first support shaped steel (10) respectively
It is provided with the lap-joint of the first support shaped steel (10) and limits sliding and allow press mechanism, the restriction sliding allows press mechanism to be used to stop
Second support shaped steel (20) moves down.
2. U-shaped steel support is pressed in a kind of allowing for reinforcement according to claim 1, it is characterised in that：Described first, second
The section for supportting shaped steel (10,20) is "u"-shaped, is respectively arranged with the notch of the first, second support shaped steel (10,20)
First, second flange (11,21), the second support shaped steel (20) are plugged on the notch inwall and the of the first support shaped steel (10)
Two flange (21) are ridden upon on the first flange (11).
3. U-shaped steel support is pressed in a kind of allowing for reinforcement according to claim 2, it is characterised in that：The restriction sliding allows
Press mechanism includes being arranged on the pin (30) at second support shaped steel (20) both ends, and the pin (30) is arranged in key seat (40), institute
State key seat (40) to be fixed in the notch of the second support shaped steel (20), the bottom land of the end of the second support shaped steel (20) is provided with out
Mouth (22), is connected between the pin (30) and key seat (40) by spring (52), and the pin (30) is protruded out in opening (22), institute
The upper end slot bottom for stating the first support shaped steel (10) is provided with the pin-and-hole (12) passed through for pin (30), and the pin-and-hole (12) is located at
Sell and arranged on the mobile route of (30).
4. U-shaped steel support is pressed in a kind of allowing for reinforcement according to claim 3, it is characterised in that：Second support type
It is provided with bar hole (211) on the second flange (21) of steel (20), bar hole (211) the hole length direction is along the second support type
The length direction arrangement of steel (20), bar hole (211) is interior to be provided with guide blot (23), and the guide blot (23) passes through bar shaped
Hole (211) and with first support shaped steel (10) the first flange (11) be connected.
5. U-shaped steel support is pressed in a kind of allowing for reinforcement according to claim 3, it is characterised in that：The pin (30) is overall
In square, the connection end of the pin (30) and key seat (40) is provided with locking shell fragment (31), and the locking shell fragment (31) is overall
In frid shape, one end of the pin (30) is fixed at the bottom land of locking shell fragment (31), and the both sides edge of locking shell fragment (31)
The length direction for selling (30) is overhang, and support spring (32) is provided between two sides of locking shell fragment (31) and pin (30), described
The opening (41) being coincide with pin (30) profile is provided with key seat (40), the spring (52) is arranged on the bottom of opening (41),
Limiting plate (43) is additionally provided with the opening (41), is formed between the limiting plate (43) and opening (41) inwall for clamping
The card interface of locking shell fragment (31).
6. U-shaped steel support is pressed in a kind of allowing for reinforcement according to claim 5, it is characterised in that：First support type
The clamping box (50) for clamping pin (30) is provided with steel (10), the opening of the clamping box (50) is located at pin-and-hole (12) place,
Limited impression (51) is provided with clamping box (50), is provided with the pin (30) and forms what is be engaged by clamping with limited impression (51)
Plush copper (33).
7. the allowing for a kind of reinforcement according to claim 1 to 6 any one presses U-shaped steel support, it is characterised in that：It is described
Length direction of the pressure U-shaped steel support along tunnel can be allowed to be arranged at intervals with multiple, first of U-shaped steel support is pressed in adjacent allowing
Support between shaped steel (10) by allowing depression bar to connect, described that depression bar can be stretched along the length direction in tunnel, the depression bar that allows
Both ends allow the first of compressed steel support to support the sleeve (70) set on shaped steel (10) to be connected with adjacent respectively, the sleeve
(70) form and be flexibly connected with the first support shaped steel (10), adjacent allow also arranged in a crossed manner between compressed steel support there are two supporting steels
Bar (80), support steel bar (80) curved arrangement and both ends allow the first of compressed steel support to support on shaped steel (10) with adjacent
The sleeve (70) of setting is fixed.
8. U-shaped steel support is pressed in a kind of allowing for reinforcement according to claim 7, it is characterised in that：It is described to allow depression bar to include
First, second allows depression bar (61,62), and described first allows one end of depression bar (61) to be provided with shank, and described first allows depression bar
(61) allow the linkage section of depression bar (62) to be provided with inserting groove for planting shank with second, described second allow depression bar (62) with
First allows between depression bar (61) set and allows pressing spring (63).
9. U-shaped steel support is pressed in a kind of allowing for reinforcement according to claim 8, it is characterised in that：The two supports steel bar
(80) anchor pole (81) is provided with crosspoint, the anchor pole (81) is vertical and is plugged at the top of the arc in tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338981.XU CN206737935U (en) | 2017-03-31 | 2017-03-31 | U-shaped steel support is pressed in a kind of allowing for reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338981.XU CN206737935U (en) | 2017-03-31 | 2017-03-31 | U-shaped steel support is pressed in a kind of allowing for reinforcement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206737935U true CN206737935U (en) | 2017-12-12 |
Family
ID=60559298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720338981.XU Withdrawn - After Issue CN206737935U (en) | 2017-03-31 | 2017-03-31 | U-shaped steel support is pressed in a kind of allowing for reinforcement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206737935U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812544A (en) * | 2017-03-31 | 2017-06-09 | 安徽理工大学 | A kind of U-shaped steel bracket of the allowed pressure of reinforcement |
| CN108894806A (en) * | 2018-06-27 | 2018-11-27 | 王欣 | A kind of coal mine roadway safety support device |
| CN110985065A (en) * | 2019-12-20 | 2020-04-10 | 内蒙古东蒙工贸有限责任公司 | Scalable reducing U type canopy |
-
2017
- 2017-03-31 CN CN201720338981.XU patent/CN206737935U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812544A (en) * | 2017-03-31 | 2017-06-09 | 安徽理工大学 | A kind of U-shaped steel bracket of the allowed pressure of reinforcement |
| CN106812544B (en) * | 2017-03-31 | 2018-11-20 | 安徽理工大学 | A kind of reinforcement allows pressure U-shaped steel bracket |
| CN108894806A (en) * | 2018-06-27 | 2018-11-27 | 王欣 | A kind of coal mine roadway safety support device |
| CN108894806B (en) * | 2018-06-27 | 2019-10-08 | 南理工泰兴智能制造研究院有限公司 | A kind of coal mine roadway safety support device |
| CN110985065A (en) * | 2019-12-20 | 2020-04-10 | 内蒙古东蒙工贸有限责任公司 | Scalable reducing U type canopy |
| CN110985065B (en) * | 2019-12-20 | 2021-03-30 | 内蒙古东蒙工贸有限责任公司 | Scalable reducing U type canopy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106812544A (en) | A kind of U-shaped steel bracket of the allowed pressure of reinforcement | |
| CN206737935U (en) | U-shaped steel support is pressed in a kind of allowing for reinforcement | |
| CN104136142B (en) | Stamping product | |
| CN101970179A (en) | Stapler | |
| CN201445021U (en) | Insert buckle head and insert buckle | |
| CN110560600A (en) | Steel bar bending equipment for pouring laminated slab | |
| CN207628999U (en) | A kind of binder flange body | |
| CN204867170U (en) | Anticollision roof beam punching press waste material ejecting mechanism | |
| CN102481829B (en) | Control rod for an adjustable closing element of a vehicle roof | |
| CN211335495U (en) | Sheet-formed anti-fatigue torsion beam | |
| CN101797604B (en) | Flat iron bending machine | |
| CN104228076B (en) | Flanging type drilling rod protection set production line | |
| CN204136442U (en) | Flanging type drilling rod protective sleeve production line | |
| CN206747398U (en) | A kind of coining die of connecting rod blank | |
| CN207982099U (en) | A kind of interior riveting mechanism | |
| CN103317058B (en) | Multifunctional precast pile reinforcement cage pile tip bender | |
| CN204912596U (en) | Two -way angle bending machine | |
| CN202539377U (en) | Bending mold for front pillar profile of excavator cab | |
| CN220080520U (en) | Bending steel bar connecting piece for slope steel bar platform | |
| CN209762050U (en) | Clutch spring | |
| CN205165678U (en) | Novel spiral muscle make -up machine | |
| CN204135688U (en) | In-flanges type drilling rod protective sleeve production line | |
| CN220278053U (en) | Bending and riveting integrated equipment | |
| CN213763733U (en) | A mould for processing pig fence door jam plate | |
| CN208019263U (en) | The position of bone cooperates apparatus for bending in a kind of mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171212 Effective date of abandoning: 20181120 |
|
| AV01 | Patent right actively abandoned |