CN209790640U - Lifting automatic supporting and clamping mechanism for three-fork rod strut of high-rise fire-fighting bridge - Google Patents
Lifting automatic supporting and clamping mechanism for three-fork rod strut of high-rise fire-fighting bridge Download PDFInfo
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- CN209790640U CN209790640U CN201920115890.9U CN201920115890U CN209790640U CN 209790640 U CN209790640 U CN 209790640U CN 201920115890 U CN201920115890 U CN 201920115890U CN 209790640 U CN209790640 U CN 209790640U
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Abstract
The utility model provides a lifting automatic supporting and clamping mechanism for a three-fork-rod supporting column of a high-rise fire-fighting bridge, wherein the three-fork-rod supporting column is a multi-section supporting column, and a lower section and an upper section of the supporting column are in a sleeved telescopic structure; automatic support clamping mechanism includes the backup pad, resets board, extension board pull rod, pillar upper segment stull, lever, spring lock card, lock card fixed plate, the flat spring that resets, the flat spring post that resets, compares with prior art, the beneficial effects of the utility model are that: the utility model provides a high building fire control bridge trident pole pillar lift automatic support clamping mechanism, adopts supporting plate formula automatic support and clamping mechanism, need not be equipped with external power specially, leans on the backup pad top to be supported by pressure, can not produce the dead danger of card.
Description
Technical Field
The utility model relates to a high building fire control bridge trident pole pillar lift automatic stay clamping mechanism.
background
Each strut of the three-forked rod type high-rise fire-fighting bridge is sleeved with a plurality of layers of square tubes like a telescopic antenna. When the lifting device works, a plurality of sections need to be lifted according to the field requirements. In order to ensure that the rope twisting type collapse is prevented, after the jacking is in place, every two sections are clamped, and in order to ensure enough supporting force, fixed supports are arranged between every two sections. The patent document CN201720256521.2 discloses a "positioning and clamping device for supporting column of three-fork rod type high-rise fire-fighting bridge" which can achieve these two functions, but has two serious disadvantages. Firstly, external power is needed, otherwise, the clamping cannot be realized, if two sections are clamped, the clamping rod needs to be rotated, otherwise, the clamping cannot be realized, and the clamping cannot be recovered. And secondly, the supporting force between the two sections depends on the positioning rod, so that the danger of blocking exists under the limit condition.
SUMMERY OF THE UTILITY MODEL
the utility model aims at providing a high building fire control bridge trident pole pillar lift automatic stay clamping mechanism adopts supporting plate formula automatic stay and clamping mechanism, need not be equipped with external power specially, leans on backup pad top pressurized to support, can not produce the dead danger of card.
In order to achieve the above object, the utility model adopts the following technical scheme:
The lifting automatic supporting and clamping mechanism for the three-fork-rod supporting column of the fire-fighting bridge in the high building comprises a multi-section supporting column, and a sleeve-joint telescopic structure is arranged between the lower section of the supporting column and the upper section of the supporting column; the automatic supporting and clamping mechanism comprises a supporting plate, a reset plate, a supporting plate pull rod, a supporting column upper section cross brace, a lever, a spring lock clamp, a lock clamp fixing plate, a reset plate spring and a reset plate spring column, wherein a rectangular window is formed in the upper end of a supporting column lower section, the supporting plate is hinged at the rectangular window, the reset plate is hinged on the inner side of the rectangular window, the lock clamp fixing plate is fixed above the reset plate and on the inner wall of the supporting column lower section, the reset plate and the lock clamp fixing plate are positioned through the spring lock clamp, the lever is arranged at the upper end of the spring lock clamp, one end of the lever extends out of the side wall of the supporting column lower section, the other end of the lever is overlapped with a lock clamp button of the spring lock clamp, one end of the reset plate spring column is fixed on the inner wall of the supporting column lower section, the other end of the reset plate spring column penetrates through the reset plate, one end of the support plate pull rod is hinged with the support plate, the other end of the support plate pull rod penetrates through the reset plate, one end of the support plate pull rod, which penetrates out of the reset plate, is fixed with a support plate pull rod baffle, a support plate pull rod spring is sleeved on the support plate pull rod, one end of the support plate pull rod spring is connected with the support plate in a propping mode, the other end of the support plate pull rod spring is connected with the reset plate in a propping mode, and a support column upper section cross.
the supporting plate is a U-shaped groove plate, a supporting plate pull rod column is fixed on the inner wall of an end plate of the U-shaped groove plate, the supporting plate pull rod is hinged with the supporting plate pull rod column, and supporting plate limiting plates and supporting plate clamping wedges are arranged at the upper ends of wing plates on two sides of the U-shaped groove plate.
the reset plate comprises an upper end plate, a vertical plate, a lower push plate and reset wheels, the upper end plate is arranged at the upper end of the vertical plate, the lower push plate is arranged at the lower end of the vertical plate, a lock hole and a lock clamping rod empty groove are formed in the upper end plate, and the bottom of the lower push plate is hinged with the reset wheels.
The lateral surface of the upper section cross brace of the strut is provided with an outer spring leaf of the upper section cross brace of the strut.
And a lower strut section limiting block is fixed on the outer wall of the lower strut section and above the lever.
Compared with the prior art, the beneficial effects of the utility model are that:
The utility model provides a high building fire control bridge trident pole pillar lift automatic support clamping mechanism, adopts supporting plate formula automatic support and clamping mechanism, need not be equipped with external power specially, leans on the backup pad top to be supported by pressure, can not produce the dead danger of card.
Drawings
fig. 1 is a schematic structural view (a first working state) of the lifting automatic supporting and clamping mechanism of the three-fork rod support of the high-rise fire-fighting bridge of the utility model;
fig. 2 is a schematic structural view (working state two) of the lifting automatic supporting and clamping mechanism of the three-fork rod support of the high-rise fire-fighting bridge of the utility model;
FIG. 3 is an enlarged view at B of FIG. 1;
FIG. 4 is a top view of the support plate;
FIG. 5 is a view from A-A of FIG. 1;
Fig. 6 is a view of the mounting position of the support clamping mechanism on the three-prong strut.
in the figure: 1-lower prop section, 2-reset wheel, 3-reset wheel shaft, 4-prop shaft, 5-reset plate, 5-1 upper end plate, 5-2 vertical plate, 5-3 lower push plate, 6-reset plate bracket, 7-reset plate shaft, 8-support plate, 9-prop limiting plate, 10-upper prop section cross brace, 11-reset plate spring, 12-reset plate spring column, 13-locking and clamping fixed plate, 14-lever bracket, 15-lower prop section limiting block, 16-upper prop section, 17-prop pull rod column, 18-prop pull rod shaft, 19-prop pull rod spring, 20-prop pull rod, 21-prop pull rod rail, 22-locking and clamping head, 23-locking and clamping rod, 24-locking and clamping spring, 25-locking and clamping button, 26-lever shaft, 27-lever, 28-lock clamping rod empty groove, 29-lock hole, 8-1 support plate clamping wedge and 10-1 support column upper section crosspiece outer spring leaf.
Detailed Description
the following further describes the embodiments of the present invention with reference to the drawings:
As shown in fig. 1-6, the lifting automatic supporting and clamping mechanism for the three-fork rod support of the fire-fighting bridge in a high building comprises a multi-section support, and a lower section 1 and an upper section 16 of the support are in a telescopic structure; the automatic supporting and clamping mechanism comprises a supporting plate 8, a reset plate 5, a supporting plate pull rod 20, a strut upper section cross brace 10, a lever 27, a spring lock clamp, a lock clamp fixing plate 13, a reset plate spring 11 and a reset plate spring column 12, wherein a rectangular window is arranged at the upper end of a strut lower section 1, the supporting plate 8 is hinged at the rectangular window, the reset plate 5 is hinged at the inner side of the rectangular window, the lock clamp fixing plate 13 is fixed above the reset plate 5 and on the inner wall of the strut lower section 1, the reset plate 5 and the lock clamp fixing plate 13 are positioned through the spring lock clamp, the lever 27 is arranged at the upper end of the spring lock clamp, one end of the lever 27 extends out from the side wall of the strut lower section 1, the other end of the lever is lapped with a lock clamp button 25 of the spring lock clamp, one end of the reset plate spring column 12 is fixed on the inner wall of the strut lower section 1, the other end of the reset plate, one end is connected with the inner wall of the lower pillar section 1 in a propping mode, the other end is connected with the reset plate 5 in a propping mode, one end of the support plate pull rod 20 is hinged to the support plate 8, the other end of the support plate pull rod passes through the reset plate 5, one end, penetrating out of the reset plate 5, of the support plate pull rod 20 is fixed with a support plate pull rod stopper 21, a support plate pull rod spring 19 is sleeved on the support plate pull rod 20, one end of the support plate pull rod spring 19 is connected with the support plate 8 in a propping mode, the other end of the support plate pull rod spring is connected with.
The supporting plate 8 is a U-shaped groove plate, a supporting plate pull rod column 18 is fixed on the inner wall of an end plate of the U-shaped groove plate, a supporting plate pull rod 20 is hinged with the supporting plate pull rod column 18, and a supporting plate limiting plate 9 and a supporting plate clamping wedge 8-1 are arranged at the upper ends of wing plates on two sides of the U-shaped groove plate.
The reset plate 5 comprises an upper end plate 5-1, a vertical plate 5-2, a lower push plate 5-3 and a reset wheel 2, wherein the upper end plate 5-1 is arranged at the upper end of the vertical plate 5-2, the lower push plate 5-3 is arranged at the lower end of the vertical plate 5-2, a lock hole 29 and a lock clamping rod empty groove 28 are formed in the upper end plate 5-1, and the bottom of the lower push plate 5-3 is hinged with the reset wheel 2. The reset wheel 2 is arranged at the bottom of the supporting plate 8.
The lateral surface of the upper strut cross brace 10 is provided with an outer spring leaf 10-1 of the upper strut cross brace.
and a lower strut section limiting block 15 is fixed on the outer wall of the lower strut section 1 and above the lever 27.
Two rectangular windows are symmetrically arranged at proper positions at the top end of the lower section 1 of the supporting column, and as shown in figure 6, supporting and clamping mechanisms are symmetrically arranged at two sides of the supporting column. Two U-shaped groove supporting plates 8 are made of steel plates, the bottoms of the supporting plates 8 are hinged to the lower edge of the rectangular window through supporting plate shafts 4, supporting plate limiting plates 9 are made at the top ends of two bent sides of the U-shaped grooves, and two wedge-shaped supporting plate clamping wedges 8-1 are made in the middle of the U-shaped grooves. The two sides of the rectangular window are fixed with the reset plate brackets 6, the middle is provided with the reset plate shaft 7, the reset plate 5 can rotate around the reset plate shaft 7, the upper end plate 5-1 and the vertical plate 5-2 are bent at 90 degrees, the lock hole 29 on the upper end plate 5-1 is communicated with the lock clamping rod empty groove 28, in order to control the position of the reset plate 5 as required, the spring locking is realized by a spring locking card, the spring locking card is arranged on the locking card fixing plate 13 and comprises a locking card button 25, a locking card spring 24, a locking card rod 23 and a locking card head 22, the locking card spring 24 is sleeved on the locking card column 23, one end of the locking card spring 24 is connected with the locking card button 25 in a propping manner, the other end of the locking card spring is connected with the locking card fixing plate 13 in a propping manner, when the locking button 25 compresses the locking spring 24, the locking head 22 extends out of the locking hole 29, no longer limits the reset plate 5, when the latch springs 24 are rebounded, the latch catches 22 retract into the latch holes 29, positioning the reset plate 5. The diameter of the locking chuck 22 is larger than that of the locking chuck rod 23, the locking chuck 22 is matched with the locking hole 29, and the locking hole rod 23 is matched with the locking chuck rod empty groove 28.
a use method of a lifting automatic supporting and clamping mechanism for a three-fork rod strut of a high-rise fire bridge comprises the following specific steps:
1) When the upper prop section 16 is lifted upwards, the crosspiece 10 of the upper prop section also rises along with the upper prop section 16, the crosspiece 10 of the upper prop section crosses the reset wheel 2 and the support plate shaft 4 and is lifted to the back of the end plate of the support plate 8, the support plate 8 rotates along a hinge point (the support plate shaft 4), the support plate pull rod spring 19 is compressed and is drawn close to the direction of the reset plate 5 until the end surface of the support plate 8 is flush with the outer wall of the lower prop section 1;
2) When the supporting plate 8 is crossed by the upper crosspiece of the supporting column, the supporting plate 8 is turned outwards under the elastic force of the supporting plate pull rod spring 19, the upper section 16 of the supporting column stops jacking and descends, the end part of the supporting plate 8 props against the upper crosspiece of the supporting column 10, the supporting plate clamping wedge 8-1 is inserted into a gap of an outer spring sheet 10-1 of the upper crosspiece of the supporting column, the supporting plate limiting plate 9 is clamped on the inner wall of the lower section 1 of the supporting column, and at the moment, the upper section 16 of the supporting column is supported on the lower section 1 of the supporting column;
3) When the upper prop section 16 falls down, the upper prop section 16 is firstly jacked to the lever 27, one end of the lever 27 is jacked, the other end of the lever 27 presses down the locking button 25 to lift the locking head 22 of the spring locking card downwards, the reset plate 5 rotates inwards along the hinge point under the elastic force of the reset plate spring 11, the reset plate 5 drives the support plate pull rod baffle 21 and the support plate pull rod 20 to pull the support plate 8 inwards until the end surface of the support plate 8 is flush with the outer wall of the lower prop section 1, and meanwhile, the reset wheel 2 at the bottom of the reset plate 5 tilts outwards;
4) the upper prop section 16 is dropped, in the process of dropping the upper prop section 16, the crosspiece 10 of the upper prop section pushes the reset wheel 2 back to the original position, the reset plate 5 rotates along the hinge point and compresses the reset plate spring 11 to reset the lock hole 29, after the lock hole 29 is reset, the lock clamping head 22 retracts into the lock hole 29 under the action of the lock clamping spring 24 to lock the position of the reset plate 5, and meanwhile, the reset plate 5 pushes the support plate 8 out of the rectangular window through the brace rod spring 19.
The specific operation is as follows:
Firstly, when the upper prop section 16 is lifted upwards, the upper prop section cross brace 10 is lifted along with the upper prop section 16, firstly, the upper prop section cross brace 10 is over the reset wheel 2 (the reset wheel 2 is retracted inside the rectangular window of the lower prop section 1 before lifting), the support plate shaft 4 and the end plate back of the U-shaped groove plate of the support plate 8, the support plate 8 can rotate along the support plate shaft 4, and the upper end of the support plate 8 has a support plate pull rod spring 19 and has a force which outwards pushes against the upper prop section 16, but the force is small and is not enough to push against the upper prop section 16 which is lifted upwards, and the upper prop section cross brace 10 is lifted upwards, so that the upper prop section cross brace 10 tends to push the support plate 8 to rotate along the shaft 4, and simultaneously compresses the support plate pull rod spring 19, and the support plate pull rod column 17, the pull rod shaft 18 and the support plate pull rod 20 are drawn together towards the direction of the reset plate 5. The fulcrum plate pull rod 20 passes through the through hole on the reset plate 5 and moves outwards, and also pushes against the fulcrum plate pull rod stop 21 to be far away from the reset plate 5, so that the support plate 8 is pushed into the rectangular window by the strut upper section cross brace 10, and the back surface of the end plate of the support plate 8 is flush with the outer wall of the strut lower section 1. The supporting column upper section cross brace 10 continues to lift up again and crosses the wedge-shaped supporting plate clamping wedge 8-1 on the supporting plate 8, at the moment, the supporting plate 8 pops out outwards under the elastic force of the supporting plate pull rod spring 19, at the moment, the supporting column upper section 16 stops lifting up and descends, and the supporting column upper section cross brace 10 also descends. Firstly, the upper head of a wedge-shaped support plate clamping wedge 8-1 on a support plate 8 firstly pushes against a strut upper section cross brace 10, and because the outer side of the strut upper section cross brace 10 is fixed with a strut upper section crosspiece outer spring piece 10-1 and enough clearance is left between the strut upper section cross brace 10 and the strut upper section crosspiece outer spring piece, the support plate clamping wedge 8-1 is just inserted into the clearance. The upper prop section 16 continues to descend and down the support plate clamping wedge 8-1, and the support plate clamping wedge 8-1 also plays a guiding role. After the upper section 16 of the supporting column is lowered, the cross brace 10 of the upper section of the supporting column is just pressed on the U-shaped supporting end face at the upper end of the supporting plate 8. At the moment, the supporting plate clamping wedge 8-1 ejects out the outer spring leaf 10-1 of the crosspiece of the upper section of the supporting column (see figure 3), firstly, the lower section 1 of the supporting column and the outer spring leaf 10-1 of the crosspiece of the upper section of the supporting column are clamped together through the supporting plate clamping wedge 8-1 and the supporting plate limiting plate 9, secondly, the two sections of supporting columns are sleeved together in a square shape and fixed in a clearance mode, then, the supporting plate clamping wedge 8-1 is clamped in the middle of the cross brace 10 of the upper section of the supporting column, the clearance is just added, and the. Moreover, because the utility model discloses a support clamping mechanism that sets up at square sheathed tube bilateral symmetry, there are two extension board clamping wedge 8-1 setpoint one side, and four clamping positioning points are total in both sides, consequently can be fine prevent to take place to twist reverse between the lower section of pillar.
When the work is completed and the upper prop 16 is required to be lowered, this is done: firstly, the upper section 16 is jacked, the cross brace 10 of the upper section of the strut leaves the supporting plate 8, and after the cross brace 10 leaves the supporting plate clamping wedge 8-1, the spring piece 10-1 outside the crosspiece of the upper section of the strut rebounds to the original position, and then the clamping function is released. The upper prop section 16 continues to lift, when the upper prop section cross brace 10 pushes against the lever 27, the lever 27 rotates along the lever shaft 26, the other end of the lever 27 presses the locking button 25, meanwhile, the locking rod 23 is pushed downwards, the locking spring 24 is compressed, the locking head 22 is pressed out of the locking hole 29 to a certain degree, and the locking fails. The reset plate spring 11 sleeved on the reset spring column 12 pushes the reset plate 5 to turn inwards by releasing energy, then the locking rod 23 slides along the locking rod empty groove 28, at this time, when the reset plate 5 is pushed outwards by the reset plate spring 11, the support plate pull rod rail 21 also moves along with the reset plate 5, then the support plate pull rod rail 21 pulls the support plate pull rod 20 to drive the support plate 8 to turn and approach towards the inner side of the rectangular window until the outer end face of the support plate 8 is flush with the window of the lower section 1 of the strut, and at this time, the reset wheel 2 at the tail end of the reset plate 5 just bends out of the lower section 1 of the strut. Therefore, the upper prop section 16 faces downwards, because the supporting plate 8 is just level with the lower prop section 1, when the upper prop section cross-brace 10 falls downwards, the upper prop section cross-brace 10 cannot be blocked by the supporting plate 8, when the upper prop section cross-brace 10 falls to the reset wheel 2, the reset wheel 2 is pushed to rotate along the reset wheel shaft 3, the reset plate 5 is pushed to rotate along the reset plate shaft 7, the upper end of the reset plate 5 compresses the reset plate spring 11, when the reset wheel 2 is pressed to be level with the lower prop section 1, the upper end of the reset plate 5 just compresses the reset plate spring 11 to be in place, at this time, the lock chuck 22 just aligns with the lock hole 29, the lock chuck 22 retracts into the lock hole 29 under the action of the lock chuck spring 24, and then the reset plate 5 is locked. And the support plate pull rod spring 19 pushes out the support plate 8 to restore to the initial working state.
Claims (5)
1. The lifting automatic supporting and clamping mechanism for the three-fork-rod supporting column of the fire-fighting bridge in the high building comprises a multi-section supporting column, and a sleeve-joint telescopic structure is arranged between the lower section of the supporting column and the upper section of the supporting column; the automatic supporting and clamping mechanism is characterized by comprising a supporting plate, a reset plate, a supporting plate pull rod, a supporting column upper section cross brace, a lever, a spring lock clamp, a lock clamp fixing plate, a reset plate spring and a reset plate spring column, wherein a rectangular window is formed in the upper end of a supporting column lower section, the supporting plate is hinged at the rectangular window, the reset plate is hinged at the inner side of the rectangular window, the lock clamp fixing plate is fixed above the reset plate and on the inner wall of the supporting column lower section, the reset plate and the lock clamp fixing plate are positioned through the spring lock clamp, the lever is arranged at the upper end of the spring lock clamp, one end of the lever extends out of the side wall of the supporting column lower section, the other end of the lever is overlapped with a lock clamp button of the spring lock clamp, one end of the reset plate spring column is fixed on the inner wall of the supporting column lower section, the other end of the reset plate spring column penetrates, the other end of the support plate pull rod is connected with a reset plate in a propping mode, one end of the support plate pull rod is hinged to the support plate, the other end of the support plate pull rod penetrates through the reset plate, one end, penetrating out of the reset plate, of the support plate pull rod is fixedly provided with a support plate pull rod baffle, a support plate pull rod spring is sleeved on the support plate pull rod, one end of the support plate pull rod spring is connected with the support plate in a propping mode, the other end of the support plate pull rod spring is connected with the.
2. The mechanism of claim 1, wherein the supporting plate is a U-shaped trough plate, a supporting plate pull rod column is fixed on an inner wall of an end plate of the U-shaped trough plate, the supporting plate pull rod is hinged to the supporting plate pull rod column, and a supporting plate limiting plate and a supporting plate clamping wedge are arranged at upper ends of wing plates at two sides of the U-shaped trough plate.
3. The mechanism of claim 1, wherein the reset plate comprises an upper end plate, a vertical plate, a lower push plate and reset wheels, the upper end plate is arranged at the upper end of the vertical plate, the lower push plate is arranged at the lower end of the vertical plate, the upper end plate is provided with a lock hole and a lock rod slot, and the bottom of the lower push plate is hinged with the reset wheels.
4. The mechanism of claim 1, wherein an outer spring plate of the upper cross member of the support is provided on the side of the upper cross member of the support.
5. The mechanism of claim 1, wherein a lower prop limiting block is fixed on the outer wall of the lower prop and above the lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920115890.9U CN209790640U (en) | 2019-01-23 | 2019-01-23 | Lifting automatic supporting and clamping mechanism for three-fork rod strut of high-rise fire-fighting bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920115890.9U CN209790640U (en) | 2019-01-23 | 2019-01-23 | Lifting automatic supporting and clamping mechanism for three-fork rod strut of high-rise fire-fighting bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209790640U true CN209790640U (en) | 2019-12-17 |
Family
ID=68820915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920115890.9U Active CN209790640U (en) | 2019-01-23 | 2019-01-23 | Lifting automatic supporting and clamping mechanism for three-fork rod strut of high-rise fire-fighting bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209790640U (en) |
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2019
- 2019-01-23 CN CN201920115890.9U patent/CN209790640U/en active Active
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