CN105804607A

CN105804607A - Civil air defense door with steel structure

Info

Publication number: CN105804607A
Application number: CN201610287308.8A
Authority: CN
Inventors: 胡圣伟; 袁义
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-05-03
Filing date: 2016-05-03
Publication date: 2016-07-27
Anticipated expiration: 2036-05-03
Also published as: CN105804607B

Abstract

The invention provides a civil air defense door with a steel structure. The civil air defense door comprises a door frame, a door leaf, sealing parts, a monolever interlock and hinges, wherein adhesive tape grooves used for accommodating the sealing parts are formed in the door frame, and embedded decompression bars are arranged on the door leaf which is hinged to the door frame through the hinges to enable the door leaf to rotate around a vertical shaft of the door frame; the monolever interlock arranged on the door leaf comprises an inner handle and an outer handle, and the inner handle and the outer handle are arranged on the inner side and outer side of the door leaf respectively through a first horizontal rotation mechanism and can rotate around the horizontal axis; a plurality of locks are sequentially arranged on the inner side of the door leaf in the circumferential direction of the door leaf, and each lock rotates around the horizontal axis; a plurality of connecting rods are connected in an end-to-end mode to form a square with one side open, the connecting rods forming the square are arranged on the inner side of the door leaf in an integrally moving mode, one of the connecting rods is in rotary connection with the inner handle, the locks are in rotary connection with the connecting rods correspondingly, and the circumferential direction of the square is consistent with that of the door leaf. The civil air defense door is easy to operate, a sealing rubber strip can be uniformly compressed, and reliable sealing is realized.

Description

Steel construction closed guard gate

Technical field

The invention belongs to building material field, particularly to a kind of steel construction closed guard gate suitable in underground protective engineering.

Background technology

Underground protective engineering is also civil air defense works, refer to for ensure wartime personnel shelter with goods and materials, people's air defence commander, medical aid and the underground protective structure individually built, and the basement that can be used for air defense wartime that combined ground building is built.The door of underground protective engineering gateway is called closed guard gate, plants apoplexy due to endogenous wind numerous closed guard gates, and steel construction closed guard gate applies generally, and the control pattern of its keying is mainly Non-follow control pattern, and namely closed guard gate is manually operated door.

In prior art, two handles, each handle and a vertical link are set inside the door leaf of manually operated door and are rotationally connected, vertical link rotates and is provided with tapered end.When being turned on and off, rotate one handle, drive the link rotatable being connected with this handle, thus driving the tapered end connected with this connecting rod to rotate so that tapered end separates with the vertical side of doorframe or opens；Then another handle is rotated so that the tapered end connected through another handle of connecting rod and this separates with the vertical opposite side of doorframe or opens, and finally realizes being turned on and off of door leaf.During owing to being turned on and off door leaf, being that two handles of operation realize successively, and the weight of closed guard gate is up to 1 ton, two handles of operation cause manual operation difficulty successively, and easily cause loosening of door leaf and door frame contact position, bring harmful effect to the seal of closed guard gate.

Summary of the invention

In order to solve problems of the prior art, the invention provides a kind of steel construction closed guard gate, comprising: doorframe, door leaf, sealing member, monolever linkage lock and hinge page；Described doorframe is formed the adhesive tape groove holding described sealing member；Described door leaf is steel construction door leaf, and described door leaf is provided with embedded pressing bar, and described door leaf and described doorframe are articulated and connected by hinge page so that described door leaf is around the vertical axial-rotation of described doorframe；Described monolever linkage lock is arranged on described door leaf, and described monolever linkage lock includes: outdoor handle, inner handle, multiple tapered end and multiple connecting rod；Described outdoor handle by the first rotation mechanism in vertical shaft to be arranged at the outside of described door leaf in the way of horizontal axis；Described inner handle is arranged at the inner side of described door leaf by described first rotation mechanism in vertical shaft by with described outdoor handle while in the way of described horizontal axis；Multiple described tapered ends are set in turn in the inner side of described door leaf along the circumference of described door leaf, and each described tapered end is around described horizontal axis；Multiple described connecting rods head and the tail are in turn connected to form the square of a side opening, the multiple connecting rods being square are arranged at the inner side of described door leaf with moving integrally, in multiple described connecting rods one and described inner handle are rotationally connected, on multiple described connecting rods, correspondence is rotatably connected to described tapered end, described square circumferential and described door leaf circumferential consistent；Wherein, described outdoor handle and inner handle are when described horizontal axis, multiple described connecting rod is driven to move, and then drive described tapered end to rotate, contact thus realizing described tapered end with the lock box of described doorframe or separate, during contact, described embedded pressing bar inserts the sealing member being placed in described adhesive tape groove, and described trunnion axis is axially pointed to steel construction closed guard gate outdoors by steel construction people's air defense every.

In steel construction closed guard gate as above, preferably, multiple described connecting rods are divided into first connecting rod group, second connecting rod group, third connecting rod group, fourth link group and the 5th connection rod set along square circumference, opening is formed between described fourth link group and described 5th connection rod set, all connecting rod moving directions that each connection rod set at least includes a connecting rod and each connection rod set are consistent, and each described connection rod set has all been connected described tapered end；When being in unlatching or locking at described monolever linkage lock, described first connecting rod group is parallel with square limit with the length direction of each connecting rod in described third connecting rod group, the length direction of each connecting rod in described second connecting rod group is parallel with another square limit, and a square limit is perpendicular with another square limit；When described monolever linkage lock is in unlatching, described fourth link group is parallel with another article of square limit with the length direction of each connecting rod in the 5th connection rod set；When described monolever linkage lock is in locking, each connecting rod in described fourth link group is square tilted, and each connecting rod in described 5th connection rod set is to square tilted；It is rotationally connected by pivoted arm between two connection rod set being arbitrarily connected, the vertical portion of described pivoted arm is by around being arranged at inside described door leaf in the way of described horizontal axis, the link rotatable being in link position in the left horizontal part of described pivoted arm and a connection rod set connects, the right horizontal part of described pivoted arm is connected with the link rotatable being in link position in another connection rod set, and described left horizontal part is connected with right horizontal part level and is all vertically connected with vertical portion.

In steel construction closed guard gate as above, it is preferable that each connection rod set all includes a connecting rod, a square limit and horizontal direction parallel；Another square limit is parallel with vertical direction, and a connecting rod in described second connecting rod group and described inner handle are rotationally connected.

In steel construction closed guard gate as above, preferably, multiple described tapered ends are divided into the first tapered end group including the first tapered end and the second tapered end group including the second tapered end, and in the circumference of described door leaf, the more described first tapered end group of described second tapered end group is near described opening；Described first tapered end includes: the first tapered end sleeve, is in a cylindrical shape, and is arranged at the inner side of described door leaf around described horizontal axis；Guided rotation arm, fixes with the outer wall of described tapered end sleeve and is connected, and the strip hole that axially has along described guided rotation arm is rotatably assorted with the rotation axle with the through hole run through on described connecting rod；First cursor, is fixedly connected on the outer wall of described first tapered end sleeve to contact with described lock box or to separate under the drive of described first tapered end sleeve, and and is formed with angle between described guided rotation arm；Described second tapered end includes: the second tapered end sleeve, is in a cylindrical shape, and is arranged at the inner side of described door leaf around described horizontal axis；Second cursor, fixes with the outer wall of described second tapered end sleeve and is connected, the second cursor has through hole and is rotatably assorted with the rotation axle with the through hole run through on described connecting rod；3rd cursor, is fixedly connected on the outer wall of described second tapered end sleeve to contact with described lock box or to separate under the drive of described second tapered end sleeve, and and is formed with angle between described second cursor.

In steel construction closed guard gate as above, it is preferable that the bottom of described first cursor is inclined-plane away from the end face of one end of described first tapered end sleeve；The bottom of described 3rd cursor is inclined-plane away from the end face of one end of described second tapered end sleeve；Wherein, at trunnion axis axially, each described inclined-plane and described trunnion axis are reducing shape.

In steel construction closed guard gate as above, it is preferable that described inner handle includes: handle jacket, the inwall of described handle jacket axially has handle jacket keyway along described handle jacket；Motion arm, is fixedly connected on the outer wall of described handle jacket；Transmission arm, is fixedly connected on the outer wall of described handle jacket, and and be formed with angle between described motion arm, also it is connected with described link rotatable；Described first rotation mechanism in vertical shaft includes: lock tube, is in a cylindrical shape, and runs through and is fixed on described door leaf；Lock shaft, rotation is arranged in described lock tube, the right part of described lock shaft stretches out the right-hand member of described lock tube and is fixedly connected with described outdoor handle, and the left part of described lock shaft stretches out the left end of described lock tube and axially has lock shaft keyway along described lock shaft, so that described lock shaft is connected with described inner handle key.

In steel construction closed guard gate as above, it is preferable that the external diameter of the left part of described lock shaft is less than the external diameter at the middle part of described lock shaft, and the left part of described lock shaft is connected with described handle jacket key, and the middle part of described lock shaft is socketed with described lock tube.

In steel construction closed guard gate as above, it is preferable that be provided with adjustment packing ring between right-hand member and the middle part of described lock shaft of described handle jacket；The left end of described handle jacket abuts to be had and the nut of described lock shaft threaded engagement.

In steel construction closed guard gate as above, preferably, described doorframe at least includes four special-shaped overall angle steel, described four special-shaped overall angle steel are in turn connected to form described doorframe, described special-shaped overall angle steel includes angle steel body, rectangle bearing plate, trapezoidal bearing plate and adhesive tape groove, wherein: described angle steel body has orthogonal two limits, described rectangle bearing plate and trapezoidal bearing plate are arranged at the outside on a limit of described angle steel body, at described rectangle bearing plate, position between the outside on a described limit of trapezoidal bearing plate and described angle steel body forms the adhesive tape groove of embedding sealing adhesive tape；Described angle steel body, rectangle bearing plate and trapezoidal bearing plate are one-body molded；Four described rectangle bearing plates of described four special-shaped overall angle steel connect into an internal ring, four described trapezoidal bearing plates of described four special-shaped overall angle steel connect into an outer shroud, and four described adhesive tape grooves of described four special-shaped overall angle steel connect into a ringwise adhesive tape groove.

In steel construction closed guard gate as above, preferably, described door leaf includes special-shaped overall channel-section steel, wainscot and outer panels, wherein: channel-section steel body drawn together by described special-shaped integral channel ladle, described channel-section steel body is made up of left lower limb, right lower limb and waist, described waist is connected between described left lower limb and described right lower limb, described left lower limb is all vertical with described waist with described right lower limb, described special-shaped overall channel-section steel also includes the embedded pressing bar being connected on described left lower limb, and the thickness of the left lower limb above described embedded pressing bar is less than the thickness of the left lower limb below described embedded pressing bar；Four described special-shaped overall channel-section steels form four sides of described door leaf, and four sides are respectively arranged at described door leaf up and down, and four described special-shaped overall channel-section steel placement directions on described door leaf are consistent；The cross sectional shape of described wainscot is rectangle, and described wainscot is connected between the left lower limb of four described special-shaped overall channel-section steels；The cross sectional shape of described outer panels is rectangle, and described outer panels is connected between the right lower limb of four described special-shaped overall channel-section steels or lateral surface.

The technical scheme that the embodiment of the present invention provides has the benefit that

(1) achieve the function of switch closed guard gate, save construction investment, meet the urgent need of engineering；

(2) blocking mechanism adopts the linkage design of many tapered ends, it is to avoid sealing joint strip compression inequality, it is ensured that the laminating of door leaf and doorframe；

(3) function of the simultaneously operable locking of bilateral is successfully solved.And, the door leaf of various thickness is gone for by adjustment lock tube and lock shaft length, perfection solves the problem that many sizes closed guard gate's door leaf is thicker；Can also be used in easily in the transformation of old engineering, there is higher economic benefit.

Accompanying drawing explanation

The front view of a kind of steel construction closed guard gate (not containing hinge page) being in opening that Fig. 1 provides for the embodiment of the present invention；

The front view of a kind of steel construction closed guard gate (containing hinge page) being in locking state that Fig. 2 provides for the embodiment of the present invention；

Fig. 3 is along the sectional view cuing open line A-A in Fig. 1；

Fig. 4 is along the revolved sectional view cuing open line C-C in Fig. 1；

Fig. 5 is along the sectional view cuing open line B-B in Fig. 1；

Fig. 6 is along the sectional view cuing open line D-D in Fig. 2；

The front view of a kind of first tapered end that Fig. 7 provides for the embodiment of the present invention；

The top view of a kind of first tapered end that Fig. 8 provides for the embodiment of the present invention；

Fig. 9 is along the sectional view cuing open line E-E in Fig. 7；

The top view of a kind of inner handle that Figure 10 provides for the embodiment of the present invention；

The top view of a kind of pivoted arm that Figure 11 provides for the embodiment of the present invention；

A kind of bivalve door doorframe that Figure 12 provides for the embodiment of the present invention assembles schematic diagram；

A kind of univalve door doorframe that Figure 13 provides for the embodiment of the present invention assembles schematic diagram；

Figure 14 is the schematic cross-section at special-shaped overall angle steel H-H place in Figure 12；

The schematic cross-section of a kind of special-shaped overall channel-section steel that Figure 15 provides for the embodiment of the present invention；

The schematic perspective view of a kind of special-shaped overall channel-section steel that Figure 16 provides for the embodiment of the present invention；

The structural representation of the door leaf of a kind of steel construction closed guard gate that Figure 17 provides for the embodiment of the present invention.

Detailed description of the invention

For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.

Referring to accompanying drawing 1～17, embodiments provide a kind of steel construction closed guard gate, comprising: doorframe 300, door leaf 100, sealing member, monolever linkage lock and hinge page.Being formed with the adhesive tape groove holding sealing member on doorframe 300, sealing member can be sealing joint strip 500；Door leaf 100 is steel construction door leaf, and namely door leaf is steel construction closed guard gate's door leaf, and door leaf 100 is provided with embedded pressing bar, and when closing closed guard gate, embedded pressing bar inserts in sealing joint strip 500, it is achieved the sealing of closed guard gate.Door leaf 100 and doorframe 300 are articulated and connected so that door leaf 100 rotates around the vertical axes of doorframe 300 by hinge page.Hinge page 200 is arranged at the same side of door leaf and doorframe, and in fig. 2, hinge page 200 is centrally located the right side of vertically symmetrical line, the right side of its right side connecting door leaf respectively and doorframe, in vertical axes upwards, has been sequentially distributed two hinge pages 200.Hinge page 200 is preferably just debugs hinge page.

Monolever linkage lock includes: outdoor handle 15, inner handle 9, multiple connecting rod and multiple tapered end.Outdoor handle 15 and inner handle 9 are respectively in door leaf 100 both sides of closed guard gate, and connection corresponding to the two ends of the first rotation mechanism in vertical shaft running through door leaf 100, in figure 3, outdoor handle 15 is positioned at the right side of door leaf 100, is connected with the right-hand member of the first rotation mechanism in vertical shaft；Inner handle 9 is positioned at the left side of door leaf 100, it is connected with the left end of the first rotation mechanism in vertical shaft, this first rotation mechanism in vertical shaft can around be axially by the horizontal axis outdoors of sensing closed guard gate in the door of closed guard gate, to realize inner handle 9 and outdoor handle 15 simultaneously around horizontal axis, namely when operation outdoor handle 15 makes it rotate, outdoor handle 15 drives the first rotation mechanism in vertical shaft to rotate, and then drives inner handle 9 to rotate；When operation inner handle 9 makes it rotate, inner handle 9 drives the first rotation mechanism in vertical shaft to rotate, and then drives outdoor handle 15 to rotate.Trunnion axis is the axis of rotation of the first rotation mechanism in vertical shaft.In figure 3, trunnion axis is axially direction from top to bottom.

Multiple tapered ends are sequentially arranged in the inner side of door leaf 100 along the circumference of door leaf 100, and each tapered end by the second rotation mechanism in vertical shaft by around being arranged in the way of horizontal axis on door leaf 100.The inner side of door leaf refers to door leaf and the side communicated within doors, and the outside of door leaf refers to the side that door leaf and room are interlinked to the outside.

Multiple connecting rods head and the tail are in turn connected to form the square of a side opening 400, this square circumference is circumferential consistent with door leaf 100, the multiple connecting rods being square are arranged at the inner side of door leaf 100 by the 3rd rotation mechanism in vertical shaft with moving integrally, in multiple connecting rods one is rotationally connected to move under driving in the rotation of inner handle 9 by the 4th rotation mechanism in vertical shaft with inner handle 9, and then drive other connecting rods to move, such as this connecting rod moves to the direction near door leaf 100 center, and then drives other connecting rods to move to the direction near door leaf 100 center；This connecting rod moves to the direction away from door leaf 100 center, and then drives other connecting rods to move to the direction away from door leaf 100 center.On multiple connecting rods, correspondence is rotatably connected to tapered end by the 4th rotation mechanism in vertical shaft.Outdoor handle 15 and inner handle 9 are when horizontal axis, the connecting rod being rotationally connected with inner handle 9 is driven to move, and then drive other connecting rods to move, then the tapered end being connected with link rotatable is driven to rotate, contact thus realizing tapered end with the lock box 301 of the doorframe 300 of closed guard gate, now monolever linkage lock is in locking state, or realizes tapered end and separate with the lock box 301 of the doorframe 300 of closed guard gate, and now monolever linkage lock is in opening.Inner handle 9 is relative with opening 400.

Multiple connecting rods are connected into an entirety by the present invention, it is operated by an inner handle 9 or an outdoor handle 15, drive the action successively of multiple connecting rod, realization is turned on and off door leaf 100, being turned on and off once-through operation and can complete of door leaf 100, simplify operating procedure, avoid because multi-pass operation causes the phenomenon of door leaf 100 and doorframe 300 seal difference to occur at the unbalance stress that the joint of door leaf 100 with doorframe 300 brings, make the sealing joint strip 500 of setting-in in doorframe 300 compress uniformly, seal reliable；Also saving labour and time.

Specifically, multiple connecting rods are divided into five connection rod set along square circumference, i.e. first connecting rod group 20, second connecting rod group 21, third connecting rod group 22, fourth link group 19 and the 5th connection rod set 5, between fourth link group 19 and the 5th connection rod set 5, form opening 400.Each connection rod set includes a connecting rod or head and the tail are fixedly connected sequentially one overall multiple connecting rod of formation so that all connecting rods in each connection rod set move integrally and moving direction consistent, is rotationally connected by the 3rd rotation mechanism in vertical shaft between adjacent links group.Each connection rod set is all rotatably connected to a tapered end at least through the 4th rotation mechanism in vertical shaft.In order to simple to operate, each connection rod set includes a connecting rod, includes a connecting rod for each connection rod set below and five connection rod set are illustrated.

Door leaf 100 be in be turned on and off time, first connecting rod group 20 is all parallel with a square limit with the length direction of the connecting rod in third connecting rod group 22, and the length direction of the connecting rod in second connecting rod group 21 is all parallel with another square limit；When door leaf 100 is in unlatching, fourth link group 19 is parallel with another article of square limit with the length direction of the connecting rod in the 5th connection rod set 5；When door leaf 100 is in cut out, in fourth link group 19, connecting rod is to square tilted, and the connecting rod in the 5th connection rod set 5 is to square tilted, in FIG, on direction from top to bottom, fourth link group 19 and vertical axes are enlarging shape, and the 5th connection rod set 5 is reducing shape with vertical axes；nullIt is rotationally connected by pivoted arm 8 between adjacent two connection rod set，Pivoted arm 8 is T-shaped，Its vertical portion 81 is by around being arranged in the way of horizontal axis on door leaf 100，Axle 1 can be fixed inside door leaf 100，Vertical portion 81 has through hole，Fixing axle 1 is rotatably assorted to realize vertical portion 81 with through hole and rotates around fixing axle 1，Such as matched in clearance，The vertical portion 81 of pivoted arm 8 fixed form inside door leaf can referring to the fixed form of the tapered end sleeve of corresponding tapered end，Its left horizontal part 82 is connected with a link rotatable of a connection rod set，Its right horizontal part 83 is connected with a link rotatable of another connection rod set，Left horizontal part 82 is connected with right horizontal part 83 level and is all vertically connected with vertical portion 81，Similarly，Through hole can be all had on left horizontal part 82 and right horizontal part 83，Connecting rod has through hole，One bearing pin 6 runs through the through hole on left horizontal part 82 and the through hole on a connecting rod realizes being rotationally connected of left horizontal part 82 and connecting rod，Another bearing pin 6 runs through through hole on right horizontal part 83 and the through hole on another connecting rod realizes being rotationally connected of right horizontal part 83 and another connecting rod.Bearing pin 6 and this through hole are rotatably assorted, for instance matched in clearance, bearing pin 6 is fixed by split pin.Namely the 3rd rotation mechanism in vertical shaft includes: pivoted arm 8, bearing pin 6, split pin and fixing axle 1.During installation, the relatively left horizontal part 82 in vertical portion 81 and right horizontal part 83 are near the center of door leaf 100.A connecting rod in second connecting rod group 21 is rotationally connected by bearing pin 6 and inner handle, and bearing pin 6 is fixed through split pin, and namely the 4th rotation mechanism in vertical shaft includes bearing pin 6 and split pin.In FIG, for uniform two tapered ends of connecting rod of first connecting rod group 20, for uniform three tapered ends of connecting rod of second connecting rod group 21, for uniform two tapered ends of connecting rod of third connecting rod group 22, for one tapered end of linkage arrangement of fourth link group 19, it is uniform two tapered ends of connecting rod of the 5th connection rod set 5.

Multiple tapered ends are divided into the first tapered end group and the second tapered end group, and the first tapered end group includes the first tapered end 2, comprising: the first tapered end sleeve 201, guided rotation arm 202 and the first cursor 203.First tapered end sleeve 201 is in a cylindrical shape, by around being arranged on the medial surface of door leaf 100 in the way of horizontal axis by the second rotation mechanism in vertical shaft, such as on door leaf, fix axle 1 by fixture, first tapered end sleeve 201 turning set is located at the outer circumferential of fixing axle 1, namely the second rotation mechanism in vertical shaft includes: fixing axle 1 and fixture, type according to door leaf is different, and the composition of fixture is different.Such as when closed guard gate's door leaf is xoncrete structure closed guard gate's door leaf or lightweight closed guard gate's door leaf, fixing axle 1 is to be positioned on door leaf 100 medial surface in the way of running through closed guard gate's door leaf, the one end fixing axle 1 and the outside threaded being positioned at the first tapered end sleeve 201 have nut and pad, and the bolt hole that the other end of fixing axle 1 is had with it by bolt is fixed；When closed guard gate's door leaf is steel construction closed guard gate's door leaf, the one end fixing axle 1 and the outside threaded being positioned at the first tapered end sleeve 201 have nut 3 and pad 4, namely fixture is nut 3 and pad 4, and the other end of fixing axle 1 is welded on the medial surface of closed guard gate's door leaf.Guided rotation arm 202 is fixing with the outer wall of the first tapered end sleeve 201 to be connected, strip hole 208 is axially had along guided rotation arm 202, this strip hole 208 is correspondingly arranged with the through hole on connecting rod, during installation, one bearing pin 6 runs through strip hole 208 and through hole realizes being rotatably assorted of connecting rod and guided rotation arm 202, and the effect lower bearing pin 6 in external force can move along the length direction of strip hole 208.First cursor 203 is fixedly connected on the outer wall of the first tapered end sleeve 201 to contact with lock box 301 or to separate under the drive of the first tapered end sleeve 201, and and guided rotation arm 202 between be formed with angle, i.e. angle between axial (i.e. the horizontal center line of the first cursor in Fig. 1) and axial (i.e. the centrage obliquely of guided rotation arm 202 in Fig. 1) of guided rotation arm 202 of the first cursor 203, this angle is preferably obtuse angle, for instance 160 °, 165 °, 155 °.

Second tapered end group includes the second tapered end 204, comprising: the second tapered end sleeve the 205, second cursor 206 and the 3rd cursor 207.Second tapered end sleeve 205 is in a cylindrical shape, and to be arranged at the inner side of door leaf 100 in the way of horizontal axis, for instance fix axle 1 on door leaf 100, the second tapered end sleeve 204 turning set is located at the outer circumferential of fixing axle 1.Second cursor 206 is fixing with the outer wall of the second tapered end sleeve 205 to be connected, second cursor 206 has through hole, this through hole is correspondingly arranged with the through hole on connecting rod, during installation, one bearing pin runs through two through holes, realizing being rotatably assorted of connecting rod and the second cursor 206, effect lower link and the second cursor 206 in external force rotate.3rd cursor 207 is fixedly connected on the outer wall of the second tapered end sleeve 205 to contact with lock box 301 or to separate under the drive of the second tapered end sleeve 205, and and is formed with angle between the second cursor 206.The i.e. angle axially and between the axial direction of the 3rd cursor 207 of the second cursor 206, this angle is preferably obtuse angle, for instance 160 °, 165 °, 155 °.The structure of the first cursor 203 and the 3rd cursor 207 can be identical, and the difference of the second cursor 206 and guided rotation arm 202 can be only that on the second cursor 206 for through hole, guided rotation arm 202 is strip hole.Second tapered end 204 relatively the first tapered end is near opening, in other words, with two ends that the junction point of connecting rod Yu inner handle is starting point and opening for terminal, square circumference is divided into two parts: anti-clockwise part and part clockwise, in Fig. 1 along square circumference from this junction point to the upper extreme point of opening 400 be part clockwise, from this junction point to the lower extreme point of opening 400 be anti-clockwise part, the tail end of part and anti-clockwise part is all provided with the second tapered end 204 clockwise, and the position away from tail end is all provided with the first tapered end 2.

The bottom of the first cursor 203 is inclined-plane away from the end face 2030 of one end of the first tapered end sleeve 201；The bottom of the 3rd cursor 207 is inclined-plane away from the end face 2030 of one end of the second tapered end sleeve 205；Wherein at trunnion axis axially, each inclined-plane and trunnion axis are reducing shape, namely the bottom of the first cursor 203 is formed with guiding oblique angle away from one end (in Fig. 1 the right-hand member of the first cursor 203) of the first tapered end sleeve 201, the bottom of the 3rd cursor 207 is formed with guiding oblique angle away from one end (in Fig. 4 the right-hand member of the 3rd cursor 207) of the second tapered end sleeve 205, so when door leaf 100 cuts out compression seal adhesive tape 500, tapered end is made very easily to enter lock box 301, rotation then as inner handle 9 or outdoor handle 15, connecting rod drives the first tapered end 2 or the second tapered end 204 to go successively to lock box 301, make door leaf 100 compression seal adhesive tape 500, last and doorframe 300 support bar is fitted.

Inner handle 9 includes: handle jacket 91, motion arm 92 and transmission arm 93.Handle jacket 91 is in a cylindrical shape, and its inwall axially has handle jacket keyway 910 along handle jacket 91；Motion arm 92 is fixedly connected on the outer wall of handle jacket 91, and its free end can tilt so that rotating operation to the direction away from door leaf 100；Transmission arm 93 is fixedly connected on the outer wall of handle jacket 91, and and motion arm 92 between be formed with angle, transmission arm 93 has through hole, corresponding with the through hole on connecting rod, bearing pin 6 sequentially passes through two through hole and realizes being rotationally connected of transmission arm 93 and connecting rod, fixes through split pin.During use, operator's rotating operation arm 92, drive handle jacket 91 to rotate, and then drive transmission arm 93 to rotate, thus drivening rod moves, it is achieved the movement rotating drivening rod of inner handle 9.First rotation mechanism in vertical shaft includes: lock tube 13 and lock shaft 14.Lock tube 13 is in a cylindrical shape, and runs through and is fixed on door leaf 13, and door leaf 13 is stretched out at its two ends respectively；Lock shaft 14 rotates and is arranged in lock tube 13, such as lock shaft 14 and lock tube 13 matched in clearance, the right part of lock shaft 14 stretches out the right-hand member of lock tube 13 and is fixedly connected with outdoor handle 15, such as weld, the left part of lock shaft 14 stretches out the left end of lock tube 13 and axially has lock shaft keyway along lock shaft 14, so that lock shaft 14 is connected with inner handle 5 key.

For the ease of the rotation of handle jacket 91, the external diameter of the left part of lock shaft 14 is less than the external diameter at the middle part of lock shaft 14, and the left part of lock shaft 14 is connected with handle jacket 91 key, for instance connected by flat key 10, and the middle part of lock shaft 14 is socketed with lock tube 13.For ease of operation, when monolever linkage lock is in unlocking condition, inner handle is vertical state, and when monolever linkage lock is in unlocking condition, inner handle opposed vertical direction tilts certain angle, and this certain angle is acute angle, for instance 50 °, 45 °, 40 °.

Adjustment packing ring 11 it is provided with between right-hand member and the middle part of lock shaft 14 of handle jacket 91, so can adjust the distance between handle jacket 91 and door leaf 100, it is beneficial to after inner handle 9 is connected with link rotatable, all link coplanars, reducing resistance for action while all connecting rods, the left end of handle jacket 91 abuts the nut 3 and pad 4 that have with lock shaft 14 threaded engagement.

In order to the installing/dismounting making lock tube 13 is simple and convenient, the right-hand member outer wall of lock tube 13 has external screw thread, and with nut 16 threaded engagement, the diameter of the left end outer wall of lock tube 13 is more than the through-hole aperture run through on the door leaf 100 having lock tube 13.O RunddichtringO 12 it is arranged with, to improve sealing between the two between lock tube 13 and lock shaft 14.The middle part internal diameter of lock tube 13 more than the internal diameter at lock tube 13 two ends so that forming, with the outer wall of lock shaft 14, the cavity holding lubricating oil.

It should be noted that so that rotate flexibly when open and close are locked, at each rotation mechanism in vertical shaft position oiling butter to reduce frictional force during assembling.

Below the installation method of monolever locking is illustrated, specific as follows:

First, the thickness of the door leaf according to steel construction closed guard gate determines the length of lock tube and lock shaft, lock tube is preset in door leaf and fixes, and O RunddichtringO is put in lock tube, lock shaft traverse axle sleeve, one end being positioned at outside door leaf of lock shaft is welded with outdoor handle, and one end nuts and washers being positioned at door leaf of lock shaft fixes inner handle.

Secondly, fixing axle is welded on the medial surface of closed guard gate's door leaf.Multiple fixing axles are along door leaf circumferentially.

Again, by multiple connecting rods respectively along door leaf circumferentially, multiple connecting rods head and the tail are sequentially connected with and side forms opening, four the angular position places formed in door leaf circumference respectively arrange a pivoted arm, each pivoted arm turning set is connected to the outer circumferential of fixing axle, being fixed by pivoted arm with nut and pad, the two ends of each pivoted arm are rotatably connected to, through bearing pin and split pin, two connecting rods that angular position place is adjacent again.

Each tapered end correspondence turning set is connected to the outer circumferential of fixing axle, then with nut and pad, tapered end is fixed, then further through bearing pin and split pin, one end of tapered end is connected with each link rotatable；

Rotate outdoor handle or inner handle all can make all connecting rods move, so that all tapered ends are freely rotatable, contact with the lock box of the doorframe of closed guard gate or separate, it is achieved when shutting, door leaf and doorframe fit tightly, and make door leaf leave doorframe when unblanking.It should be noted that the installation relating to parts in method can referring to above-mentioned closed guard gate with the installation method of parts in monolever locking.

Shown in Figure 12～14, doorframe at least includes four special-shaped overall angle steel 311, four special-shaped overall angle steel 311 are in turn connected to form doorframe, special-shaped overall angle steel 311 includes angle steel body 311, rectangle bearing plate 312, trapezoidal bearing plate 313 and adhesive tape groove 314, angle steel body 311 has orthogonal two limits, wherein: rectangle bearing plate 312 and trapezoidal bearing plate 313 are arranged at the outside on a limit of angle steel body 311, at rectangle bearing plate 312, position between the outside on one limit of trapezoidal bearing plate 313 and angle steel body 311 forms the adhesive tape groove 314 of embedding sealing adhesive tape；Angle steel body 311, rectangle bearing plate 312 and trapezoidal bearing plate 313 are one-body molded；Four rectangle bearing plates 312 of four special-shaped overall angle steel 311 connect into an internal ring, four trapezoidal bearing plates 313 of four special-shaped overall angle steel 311 connect into an outer shroud, and four adhesive tape grooves 314 of four special-shaped overall angle steel 311 connect into a ringwise adhesive tape groove 314.The main material of this doorframe is that a kind of intensity is high, rigidity is big and the special-shaped overall angle steel 311 of Integral sealing function admirable.Assembled process connects the doorframe of formation rectangle after according to the radius of corner of doorframe one end of overall for this abnormal shape angle steel 311 being removed a part of rectangle bearing plate 312 and trapezoidal bearing plate 313.Thereby simplify the production technology of doorframe, improve product quality and production efficiency, enhance drag and the airtight performance of doorframe, there is stronger promotional value.

It is connected to Inner arc support bar 320 between the rectangle bearing plate 312 of two special-shaped overall angle steel 311 of the right angle of doorframe, it is connected to external arc support bar 319 between the trapezoidal bearing plate 313 of two special-shaped overall angle steel 311 of the right angle of doorframe, namely a part of rectangle bearing plate 312 and trapezoidal bearing plate 313 are removed according to radius of corner in the two ends of overall for this abnormal shape angle steel 311 by assembled process, with Inner arc support bar 320, the rectangle bearing plate 312 of two special-shaped overall angle steel 311 is connected, with external arc support bar 319, the trapezoidal bearing plate 313 of two special-shaped overall angle steel 311 is connected, above-mentioned connection preferably connects by welding method.Can simplify doorframe production technology, strengthen doorframe drag and airtight performance, improve product quality and production efficiency.

The inner side being positioned at two special-shaped overall angle steel 311 of the right angle of doorframe is also associated with standard angle iron 321, and special-shaped overall angle steel 311 and standard angle iron 321 are connected by alignment pin 322 and/or connecting bolt 323.Be provided with the effect one of standard angle iron 321 be door opening big time be easy to on-the-spot splicing；Two is the intensity strengthening doorframe.

As shown in figure 14, the cross sectional shape of rectangle bearing plate 312 is preferably rectangular, and a limit of the long limit of rectangle and angle steel body 311 is vertically arranged, and the benefit so arranged is that production technology is simple.The cross sectional shape of trapezoidal bearing plate 313 is right-angled trapezium, one limit of the right-angle side of trapezoidal bearing plate 313 and angle steel body 311 is vertically arranged, owing to the cross section of the sealing joint strip of preventer selection is generally right-angled trapezium, therefore, it is that production technology is simple and quality is more excellent by the benefit that the adhesive tape groove 314 coordinated with the hypotenuse of trapezoidal sealing joint strip is arranged on large-sized trapezoidal bearing plate 313.Composition right angle, the junction end 318 on orthogonal two limits of angle steel body 311, the right-angle side of preferred trapezoidal bearing plate 313 is the limit of the right angle end 318 away from angle steel body 311, and namely the hypotenuse of trapezoidal bearing plate 313 is the limit of the right angle end 318 near angle steel body 311.The upper base (that base shorter in two namely trapezoidal parallel bases) of trapezoidal bearing plate 313 overlaps with the outer side edges on a limit of angle steel body 311, angle between hypotenuse and another limit of angle steel body 311 of trapezoidal bearing plate 313 is β, and the tangent value of angle β 315 is 2/15.The cross sectional shape of adhesive tape groove 314 is right-angled trapezium, and the outer side edges with a limit of described angle steel body of going to the bottom of adhesive tape groove 314 overlaps, and its upper base L2 is 30mm, the L1 that goes to the bottom is 34mm, and namely the outer end of adhesive tape groove 314 is less than the inner near angle steel body 311.For the size of fitted seal adhesive tape, in other examples, the upper base L2 of adhesive tape groove 314 is 40mm, the L1 that goes to the bottom is 44mm, in the application, its numerical value is not specifically limited.During installation, adhesive tape groove 314 is full of the sealing joint strip of the material such as soft rubber or sponge, and owing to the outer end of adhesive tape groove 314 is less than the inner, the sealing joint strip of the material such as adhesive tape or sponge is not easy to come off, it is ensured that overall sealing.The setting of facing directly of adhesive tape groove 314 is overlapped with the one side of rectangle bearing plate 312, the inclined-plane of adhesive tape groove 314 is arranged and overlaps with the prism of trapezoidal bearing plate 313, so arranging and be easy to steel mill's production, technique is good, also allows for two special-shaped overall angle steel 311 circular sliding slopes.The overall angle steel 311 of this abnormal shape is the overall angle steel that a kind of intensity is high, rigidity is big and Integral sealing is good, decreases doorframe manufacturing procedure simultaneously, improves adhesive tape positioning precision, therefore it also avoid because welding the situation generation causing doorframe angle steel to deform.The two ends of the inner side on two limits of angle steel body 311 are provided with reinforcement 316, it is preferable that the middle part of the inner side on another limit of angle steel body 311 is provided with reinforcement 316.Preferably reinforcement 316 is shaped as the semi arch that radius is 9mm.The setting of reinforcement 316 can increase the intensity of special-shaped overall angle steel 311.Rectangle bearing plate 312 is positioned close to the outside on a limit of the right angle end 318 of angle steel body 311, trapezoidal bearing plate 313 is arranged far from the outside on a limit of the right angle end 318 of angle steel body 311, is arranged so that when assembling doorframe, the sealing joint strip at the corner place of doorframe is unlikely to deform.Namely compared to trapezoidal bearing plate 313, rectangle bearing plate 312 is closer to the right angle end 318 of angle steel body 311.On the width (i.e. the above-below direction of Figure 13) of rectangle bearing plate 312, when from figure, right side is observed to the left, another limit (horizontal sides in Figure 13) above-below direction in the drawings of rectangle bearing plate 312 and angle steel body 311 partly overlaps, that is, rectangle bearing plate 312 is near the distance of the side distance right angle end 318 in the vertical direction of right angle end 318 less than the thickness (i.e. above-below direction size) on another limit (horizontal sides in Figure 13) of angle steel body 311, and the stress that the benefit being so designed that is this abnormal shape entirety angle steel 311 is good.The width of rectangle bearing plate 312 is 16mm, and the width of trapezoidal bearing plate 313 is 36mm, so that the supporting surface of door leaf and doorframe is 2 times of the lap in Figure 12, the sealing range of composition increases, and its sealing off gap adds length, is 3 times in Figure 12.The width (the above-below direction size in Figure 13) of rectangle bearing plate 312 is less than the upper base of trapezoidal bearing plate 313 or the equidirectional size gone to the bottom, owing to overlap joint or the carrying of door leaf with doorframe need, door leaf overall dimensions should not be too big with the difference of doorframe hole size or overlapping dimension, therefore has above-mentioned difference.The junction of angle steel body 311 and rectangle bearing plate 312 and trapezoidal bearing plate 313 is provided with rounding 317, the apex on two limits of rectangle bearing plate 312 and trapezoidal bearing plate 313 is also provided with rounding 317, it is preferable that rounding 317 is shaped to the circular arc that radius is 2mm～4mm.The setting of rounding 317 can increase the intensity of special-shaped overall angle steel 311 so that special-shaped overall angle steel 311 not easy fracture.

Shown in Figure 15～17, door leaf 100 includes special-shaped overall channel-section steel 108, wainscot 112 and outer panels 111, wherein: special-shaped overall channel-section steel 108 includes channel-section steel body 101, channel-section steel body 101 is made up of left lower limb 103, right lower limb 104 and waist 102, waist 102 is connected between left lower limb 103 and right lower limb 104, left lower limb 103 and right lower limb 104 are all vertical with waist 102, special-shaped overall channel-section steel 108 also includes the embedded pressing bar 107 being connected on left lower limb 103, and the thickness of embedded pressing bar 107 left lower limb 103 above is less than the thickness of the left lower limb 103 below described embedded pressing bar 107；Four special-shaped overall channel-section steels 108 form four sides of door leaf 100, and four the special-shaped overall channel-section steel 108 placement directions on door leaf 100 are consistent；The cross sectional shape of wainscot 112 is rectangle, wainscot 112 is connected between the left lower limb 103 of four special-shaped overall channel-section steels 108, owing to the thickness of the above left lower limb 103 of embedded pressing bar 107 is less than the thickness of the following left lower limb 103 of embedded pressing bar 107, thickness difference between preferred said two devices is equal with the thickness of wainscot 112, door leaf wainscot 112 and abnormal shape entirety channel-section steel 108 with in conjunction with time, the height making wainscot 112 is equal with the height of the left lower limb 103 below embedded pressing bar 107, wherein, wainscot 112 only has two places with the weld seam 113 of abnormal shape entirety channel-section steel 108；The cross sectional shape of outer panels 111 is rectangle, and outer panels 111 is connected between the right lower limb 104 of four special-shaped overall channel-section steels 108 or lateral surface.

Above-mentioned row illustrative embodiments is that embedded pressing bar 107 is connected on left lower limb 103, in like manner can also be arranged on right lower limb 104, be not described here in detail.

The embedded pressing bar 107 of the special-shaped overall channel-section steel 108 of the door leaf 100 comprising special-shaped overall channel-section steel 108 disclosed by the invention embeds in the sealing joint strip on corresponding doorframe so as to compression realizes sealing function.Laminating dimensional requirement according to the door leaf 100 coordinated with doorframe, it is provided that the best carrying support force face of door leaf 100, greatly reduces the weld seam quantity of door leaf 100 structure, scientific and reasonable for structure.Channel-section steel body 101 and the embedded pressing bar 107 of special-shaped overall channel-section steel 108 are one-body molded, not only reduce the original design welding sequence by embedded pressing bar+wainscot+common channel-section steel and I steel composite body+outer panels overlap joint welding sequence, accelerate working (machining) efficiency, ensure that the positioning precision of embedded pressing bar, decrease door leaf 100 processing cost, the deformation produced when it also avoid embedded pressing bar welding, enhance door leaf 100 drag, and then enhance the drag of door leaf 100 and the airtight performance of door leaf 100 hole, substantially increase the Integral sealing of preventer, strengthen the intensity of door leaf 100 structure simultaneously, rigidity.

Door leaf also includes I-steel, and I-steel and abnormity entirety channel-section steel 108 connect into cross beam.Preferred I-steel includes horizontal I-steel 109 and longitudinal I-steel 110, horizontal I-steel 109 and longitudinal I-steel 110 and connects into cross beam with abnormity entirety channel-section steel 108.I.e. special-shaped overall channel-section steel 108 and longitudinal equidirectional horizontally set of I-steel 110, horizontal I-steel 109 is vertically arranged with longitudinal I-steel 110, wainscot 112 is connected between the left lower limb 103 of four special-shaped overall channel-section steels 108, and is connected to the outside of a side wing edge of longitudinal I-steel 110；Outer panels 111 is connected between the right lower limb 104 of four special-shaped overall channel-section steels 108 or lateral surface, and is connected to the outside on the opposite side edge of a wing of longitudinal I-steel 110.It is designed so that the overall structure of door leaf 100 is more firm.

Embedded pressing bar 107 is arranged on the outside of left lower limb 103 or right lower limb 104, it is preferable that be vertically arranged with left lower limb 103 or right lower limb 104 by embedded pressing bar 107, it is possible to increase positioning precision, and realizes sealing function more preferably when the sealing joint strip embedded on doorframe.Being provided with the left lower limb 103 of embedded pressing bar 107 or the thickness of right lower limb 104 more than the thickness of the right lower limb 104 or left lower limb 103 that are not provided with embedded pressing bar 107, namely when embedded pressing bar 107 is arranged on left lower limb 103, the thickness of left lower limb 103 is more than the thickness of right lower limb 104；When embedded pressing bar 107 is arranged on right lower limb 104, the thickness of right lower limb 104 is more than the thickness of left lower limb 103.The purpose so arranged is to strengthen the strength and stiffness of special-shaped overall channel-section steel, it is to avoid in use affect sealing property owing to being deformed.The inner side of the junction of left lower limb 103 and waist 102 forms Inner arc 105, and right lower limb 104 forms Inner arc 105 with the inner side with the junction of waist 102, and the radius of Inner arc 105 is 8～15mm.The inner side of the end of left lower limb 103 and right lower limb 104 is provided with end arc 106, and the radius of end arc 106 is 2～5mm, and the setting of end arc 106 can increase the intensity of special-shaped overall channel-section steel so that special-shaped overall channel-section steel not easily ruptures.The distance L3 of the end of embedded pressing bar 107 and left lower limb 103 or right lower limb 104 is 10～15mm, and the distance L4 of embedded pressing bar 107 and waist 102 is 60～75mm, and the stress that the benefit of this design is the overall channel-section steel of this abnormal shape is good.The thickness of the left lower limb 103 or right lower limb 104 that are provided with embedded pressing bar 107 is 15～25mm, thicker than the thickness of the right lower limb 104 or left lower limb 103 that are not provided with embedded pressing bar 107, increases the intensity of special-shaped overall channel-section steel.

Preferably by the top rounding R2 of embedded pressing bar 107, left lower limb 103 or right lower limb 104 are divided into two sections by embedded pressing bar 107, and one section is between embedded pressing bar 107 and waist 102, and embedded pressing bar 107 and left lower limb 103 or right lower limb 104 are at the junction rounding R10～15mm of this section；Another section is between the end of embedded pressing bar 107 and left lower limb 103 or right lower limb 104, and embedded pressing bar 107 is right angle with left lower limb 103 or right lower limb 104 in the junction of this section, the wainscot 112 being disposed to be easy to place door leaf 100 at this right angle.

Further, the material of special-shaped overall channel-section steel and abnormal shape entirety angle steel is preferably all Q235 or 16Mn, so can under ensureing the premise of properties of special-shaped overall channel-section steel or special-shaped overall angle steel, select during for door leaf 100 or the doorframe 300 of protection works low resistance preventer and select Q235, select Q235 can reduce cost.Selecting 16Mn during for door leaf 100 or the doorframe 300 of protection works high drag preventer, same size can reduce weight, improves the intensity that preventer is higher.

In sum, what the present invention brought has the beneficial effect that:

(2) blocking mechanism adopts the linkage design of many tapered ends, it is to avoid adhesive tape compression inequality, it is ensured that the laminating of door leaf and doorframe；

As known by the technical knowledge, the present invention can be realized by the embodiment of other essence without departing from its spirit or essential feature.Therefore, embodiment disclosed above, for each side, all it is merely illustrative, is not only.All within the scope of the present invention or be all included in the invention in the change being equal in the scope of the present invention.

Claims

1. a steel construction closed guard gate, the door leaf of described steel construction closed guard gate is steel construction door leaf, it is characterised in that described steel construction closed guard gate includes: doorframe, door leaf, sealing member, monolever linkage lock and hinge page；

Described doorframe is formed the adhesive tape groove holding described sealing member；

Being provided with embedded pressing bar on described door leaf, described door leaf and described doorframe are articulated and connected by hinge page so that described door leaf rotates around the vertical axes of described doorframe；

Described monolever linkage lock is arranged on described door leaf, and described monolever linkage lock includes: outdoor handle, inner handle, multiple tapered end and multiple connecting rod；

Described outdoor handle by the first rotation mechanism in vertical shaft to be arranged at the outside of described door leaf in the way of horizontal axis；

Described inner handle is arranged at the inner side of described door leaf by described first rotation mechanism in vertical shaft by with described outdoor handle while in the way of described horizontal axis；

Multiple described tapered ends are set in turn in the inner side of described door leaf along the circumference of described door leaf, and each described tapered end is around described horizontal axis；

Multiple described connecting rods head and the tail are in turn connected to form the square of a side opening, the multiple connecting rods being square are arranged at the inner side of described door leaf with moving integrally, in multiple described connecting rods one and described inner handle are rotationally connected, on multiple described connecting rods, correspondence is rotatably connected to described tapered end, described square circumferential and described door leaf circumferential consistent；

Wherein, described outdoor handle and inner handle are when described horizontal axis, multiple described connecting rod is driven to move, and then drive described tapered end to rotate, contact thus realizing described tapered end with the lock box of described doorframe or separate, during contact, described embedded pressing bar inserts the sealing member being placed in described adhesive tape groove, and described trunnion axis is axially point to steel construction closed guard gate outdoors in the door by steel construction closed guard gate.

2. steel construction closed guard gate according to claim 1, it is characterized in that, multiple described connecting rods are divided into first connecting rod group, second connecting rod group, third connecting rod group, fourth link group and the 5th connection rod set along square circumference, opening is formed between described fourth link group and described 5th connection rod set, all connecting rod moving directions that each connection rod set at least includes a connecting rod and each connection rod set are consistent, and each described connection rod set has all been connected described tapered end；

When being in unlatching or locking at described monolever linkage lock, described first connecting rod group is parallel with square limit with the length direction of each connecting rod in described third connecting rod group, the length direction of each connecting rod in described second connecting rod group is parallel with another square limit, and a square limit is perpendicular with another square limit；

When described monolever linkage lock is in unlatching, described fourth link group is parallel with another article of square limit with the length direction of each connecting rod in the 5th connection rod set；When described monolever linkage lock is in locking, each connecting rod in described fourth link group is square tilted, and each connecting rod in described 5th connection rod set is to square tilted；

It is rotationally connected by pivoted arm between two connection rod set being arbitrarily connected, the vertical portion of described pivoted arm is by around being arranged at inside described door leaf in the way of described horizontal axis, the link rotatable being in link position in the left horizontal part of described pivoted arm and a connection rod set connects, the right horizontal part of described pivoted arm is connected with the link rotatable being in link position in another connection rod set, and described left horizontal part is connected with right horizontal part level and is all vertically connected with vertical portion.

3. steel construction closed guard gate according to claim 2, it is characterised in that each connection rod set all includes a connecting rod, a square limit and horizontal direction parallel；Another square limit is parallel with vertical direction, and a connecting rod in described second connecting rod group and described inner handle are rotationally connected.

4. steel construction closed guard gate according to claim 1, it is characterized in that, multiple described tapered ends are divided into the first tapered end group including the first tapered end and the second tapered end group including the second tapered end, and in the circumference of described door leaf, the more described first tapered end group of described second tapered end group is near described opening；

Described first tapered end includes: the first tapered end sleeve, is in a cylindrical shape, and is arranged at the inner side of described door leaf around described horizontal axis；Guided rotation arm, fixes with the outer wall of described tapered end sleeve and is connected, and the strip hole that axially has along described guided rotation arm is rotatably assorted with the rotation axle with the through hole run through on described connecting rod；First cursor, is fixedly connected on the outer wall of described first tapered end sleeve to contact with described lock box or to separate under the drive of described first tapered end sleeve, and and is formed with angle between described guided rotation arm；

Described second tapered end includes: the second tapered end sleeve, is in a cylindrical shape, and is arranged at the inner side of described door leaf around described horizontal axis；Second cursor, fixes with the outer wall of described second tapered end sleeve and is connected, the second cursor has through hole and is rotatably assorted with the rotation axle with the through hole run through on described connecting rod；3rd cursor, is fixedly connected on the outer wall of described second tapered end sleeve to contact with described lock box or to separate under the drive of described second tapered end sleeve, and and is formed with angle between described second cursor.

5. steel construction closed guard gate according to claim 4, it is characterised in that the bottom of described first cursor is inclined-plane away from the end face of one end of described first tapered end sleeve；

The bottom of described 3rd cursor is inclined-plane away from the end face of one end of described second tapered end sleeve；

Wherein, at trunnion axis axially, each described inclined-plane and described trunnion axis are reducing shape.

6. the steel construction closed guard gate according to any one of claim 1-5, it is characterised in that described inner handle includes:

Handle jacket, the inwall of described handle jacket axially has handle jacket keyway along described handle jacket；

Motion arm, is fixedly connected on the outer wall of described handle jacket；

Transmission arm, is fixedly connected on the outer wall of described handle jacket, and and be formed with angle between described motion arm, also it is connected with described link rotatable；

Described first rotation mechanism in vertical shaft includes:

Lock tube, is in a cylindrical shape, and runs through and is fixed on described door leaf；

Lock shaft, rotation is arranged in described lock tube, the right part of described lock shaft stretches out the right-hand member of described lock tube and is fixedly connected with described outdoor handle, and the left part of described lock shaft stretches out the left end of described lock tube and axially has lock shaft keyway along described lock shaft, so that described lock shaft is connected with described inner handle key.

7. steel construction closed guard gate according to claim 6, it is characterised in that the external diameter of the left part of described lock shaft is less than the external diameter at the middle part of described lock shaft, and the left part of described lock shaft is connected with described handle jacket key, and the middle part of described lock shaft is socketed with described lock tube.

8. steel construction closed guard gate according to claim 6, it is characterised in that be provided with adjustment packing ring between right-hand member and the middle part of described lock shaft of described handle jacket；

The left end of described handle jacket abuts to be had and the nut of described lock shaft threaded engagement.

9. steel construction closed guard gate according to claim 1, it is characterised in that described doorframe at least includes four special-shaped overall angle steel, and described four special-shaped overall angle steel are in turn connected to form described doorframe,

Described special-shaped overall angle steel includes angle steel body, rectangle bearing plate, trapezoidal bearing plate and adhesive tape groove, wherein:

Described angle steel body has orthogonal two limits, described rectangle bearing plate and trapezoidal bearing plate are arranged at the outside on a limit of described angle steel body, and the position between the outside on a described limit of described rectangle bearing plate, trapezoidal bearing plate and described angle steel body forms the adhesive tape groove of embedding sealing adhesive tape；Described angle steel body, rectangle bearing plate and trapezoidal bearing plate are one-body molded；

Four described rectangle bearing plates of described four special-shaped overall angle steel connect into an internal ring, four described trapezoidal bearing plates of described four special-shaped overall angle steel connect into an outer shroud, and four described adhesive tape grooves of described four special-shaped overall angle steel connect into a ringwise adhesive tape groove.

10. according to steel construction closed guard gate according to claim 1, it is characterised in that described door leaf includes special-shaped overall channel-section steel, wainscot and outer panels, wherein:

Channel-section steel body drawn together by described special-shaped integral channel ladle, described channel-section steel body is made up of left lower limb, right lower limb and waist, described waist is connected between described left lower limb and described right lower limb, described left lower limb is all vertical with described waist with described right lower limb, described special-shaped overall channel-section steel also includes the embedded pressing bar being connected on described left lower limb, and the thickness of the left lower limb above described embedded pressing bar is less than the thickness of the left lower limb below described embedded pressing bar；

Four described special-shaped overall channel-section steels form four sides of described door leaf, and four sides are respectively arranged at described door leaf up and down, and four described special-shaped overall channel-section steel placement directions on described door leaf are consistent；

The cross sectional shape of described wainscot is rectangle, and described wainscot is connected between the left lower limb of four described special-shaped overall channel-section steels；

The cross sectional shape of described outer panels is rectangle, and described outer panels is connected between the right lower limb of four described special-shaped overall channel-section steels or lateral surface.