CN209262291U - A kind of self-locking airtight gate - Google Patents

Abstract

The utility model discloses a kind of self-locking airtight gates, including support frame, feed inlet is set on support frame as described above, sealing strip is circumferentially arranged in the feed inlet, screw rod is set in support frame as described above, and the setting of support frame as described above side drives the motor of the screw rod rotation, is arranged sliding block on the screw rod, gate, gate front end lower end surface constant inclined surface guide rail are set on the sliding block；Support frame as described above two sides are located at below the feed inlet and screw rod back-end location is respectively provided with multiple groups idler wheel one, and one upper surface of idler wheel and the gate lower end surface are in same level.It can be realized the full automation of airtight gate, reduce cost of labor, improve operating environment.

Description

A kind of self-locking airtight gate

Technical field

The utility model relates to food storage fields, more particularly, to a kind of self-locking airtight gate.

Background technique

Food storage field at present usually has the storehouses such as horizontal warehouse, silo, vertical silo, multi-storied warehouse, steel silo type to grain The long-term storage of food.In storage, the temperature, mildew of grain, infested etc. in storehouse are observed by grain condition monitoring system in real time Situation, and ventilation, Gu Leng, stifling, nitrogen charging etc. is taken to protect grain measure to achieve the purpose that cooling, desinsection.The above operation requires Silo has preferable air-tightness, and when in particular by phosphine fumigation operation, phosphine gas has severe toxicity, it is necessary to by silo Airtight gate is closed.Therefore it is required that airtight gate has higher air-tightness.

But airtight gate currently on the market be all first pass through horizontal movement for closing gate, then by manually pass through cam machine Structure kills sealing ring, to silo be sealed, to guarantee the air-tightness of whole system.It then needs manually first to open when putting out cereal close Envelope state could open gate again.

Chinese patent literature (CN205446772U) discloses a kind of silo airtight gate cam pressing device, and the one of shell Side is provided with grain-entering mouth, and sealing strip seat is provided on grain-entering mouth, and grain-entering mouth is connected to silo, is provided with sealing strip on sealing strip seat, It is provided with gate in shell, open-and-close mechanism is provided on shell, hold-down mechanism is provided on shell, after gate is closed, compacting machine Structure compresses gate and sealing strip seat, gap between sealing strip sealed gate and sealing strip seat.Hold-down mechanism includes camshaft, cam Axis is installed on shell, and camshaft is located at the intracorporal one end of shell and is provided with cam, and rolling bearing is set with outside cam.This is practical new It in type after gate is closed, needs to operate hold-down mechanism and pulls handle, handle drives cam axle, to turn with moving cam Dynamic, cam driven rolling bearing compresses gate, realizes the compression to gate, and gate can not achieve automatic impaction closure, need Cooperate artificial hold-down mechanism, operation is time-consuming and laborious, and working environment is poor, at high cost.

Utility model content

In view of this, the purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of self-locking airtight gate, It can be realized the full automation of airtight gate, reduce cost of labor, improve operating environment.

In order to achieve the above objectives, the utility model uses following technical scheme:

Feed inlet is arranged on support frame as described above in a kind of self-locking airtight gate, including support frame, and the feed inlet is circumferentially set Sealing strip is set, screw rod is set in support frame as described above, the setting of support frame as described above side drives the motor of the screw rod rotation, the silk It is arranged sliding block on bar, gate, gate front end lower end surface constant inclined surface guide rail are set on the sliding block；Support frame as described above two sides Below the feed inlet and screw rod back-end location is respectively provided with multiple groups idler wheel one, one upper surface of idler wheel and the gate Lower end surface is in same level.

Further, through-hole is arranged in the gate rear end, and one end setting pin of the through-hole is stretched out on the sliding block top.

The beneficial effects of the utility model are:

1, the utility model discloses a kind of self-locking airtight gate, by the way that surface rail is arranged in gate front end lower end surface, Gate travels forward under the transmission effect of screw rod sliding block, when its front end touches the idler wheel below feed inlet for the moment, due to oblique Face guide rail front end is incline structure, and under the action of idler wheel one and screw rod transmission, gate starts while moving horizontally It moves vertically upwards, gate slowly forces gate to start compression seal item when travelling forward, and finally realizes that feed inlet is complete Entirely by closing gate, does not need cam and compression operation is carried out to gate again, it is simple and practical.

When gate needs to open, motor is rotated backward, and sliding block matched with lead screw retreats under conditions of lead screw rotates, Gate and surface rail is driven to move horizontally, when gate and surface rail touch the idler wheel of feed inlet lower right for the moment, Start to move vertically downwards while moving horizontally, guidance gate disengages sealing strip, and whole process does not need manually to grasp Make, time saving and energy saving, safe ready.

2, the utility model is the even running for ensuring gate, is located at below feed inlet and after screw rod in support frame two sides End position symmetrically fixes multiple groups idler wheel one, and wherein the idler wheel one of screw rod back-end location is corresponded in the rear end of gate initial position, Gate can be supported in shutter motion；And the idler wheel one below feed inlet is used for the group horizontal movement of lead-in chamfered guide rail While move horizontally.

Detailed description of the invention

Fig. 1 is the overlooking structure diagram of the utility model embodiment 1；

Fig. 2 is the A-A the schematic diagram of the section structure in the utility model Fig. 1；

Structural schematic diagram when Fig. 3 is closing gate in Fig. 2；

In figure: 1- support frame, 2- feed inlet, 3- sealing strip, 4- screw rod, 5- motor, 6- sliding block, 7- gate, 8- are led on inclined-plane Rail, 9- through-hole, 10- pin, 11- idler wheel one.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and examples.

Embodiment 1

As depicted in figs. 1 and 2, wherein feed inlet is arranged on support frame 1 in a kind of self-locking airtight gate, including support frame 1 2, feed inlet 2 is connected to silo, the circumferential setting sealing strip 3 of feed inlet 2.Screw rod 4 is set in support frame 1, and wherein 1 side of support frame is set The motor 5 for driving screw rod 4 to rotate is set, wherein motor via reducer drives screw rod to be rotated, and the both ends of screw rod are respectively provided with axis It holds.It is arranged sliding block 6 on screw rod 4, i.e., is screw rod transmission between screw rod and sliding block, converts linear motion for rotary motion；Sliding block 6 Upper setting gate 7, specific connection relationship are as follows: through-hole 9 is arranged in 7 rear end of gate, and wherein the through-hole 9 is stretched out on 6 top of sliding block Pin 10 is arranged in one end.

Surface rail 8 is welded in 7 front end lower end surface of gate, in conjunction with attached drawing as can be seen that 8 front end of surface rail is to tilt down Structure, 1 two sides of support frame are located at the lower section of feed inlet 2 and multiple groups idler wheel 1 is symmetrically fixed in 4 rear end of screw rod, in the present embodiment Idler wheel 1 is four groups, and 2 lower position of middle charging aperture is arranged two groups, is evenly distributed in below feed inlet；4 rear end of screw rod limit The rear end corresponding position for being scheduled on 7 initial position of gate is arranged two groups, this several groups of idler wheel centers are in same level, and idler wheel 1 Upper surface and 7 lower end surface of gate are in same level, and idler wheel 1 is used to support gate 7.

First stage (closing gate): Fig. 2 is the structural schematic diagram of 7 initial position of gate, there is two groups of idler wheels 1 at this time Gate 7 is supported positioned at 7 back-end location of gate.When charging finishes, grain is fumigated in silo, needs to close at this time Closing gate 7, to guarantee air-tightness when fumigating in silo.Start motor 5, motor 5 rotates in the forward direction, and drives the rotation of speed reducer forward direction Turning, speed reducer drives lead screw 4 to rotate in the forward direction, and the sliding block 6 of the mating connection of screw rod 4 is positive under the action of screw rod 4 moves along a straight line, It is mobile to drive 7 forward horizontal of gate, and one 11 pairs of gates 7 of idler wheel are played a supporting role, it is ensured that gate 7 is steady forward；When gate 7 When the surface rail 8 of upper fixation touches idler wheel 1 below feed inlet, since 8 front end of surface rail is incline structure, Under the action of idler wheel 1 below sliding block 6 and feed inlet, gate 7 starts to do vertical fortune upwards while moving horizontally Dynamic, gate 7 slowly forces gate 7 to start compression seal item 3 when travelling forward.When gate 7 moves to stop bit, such as Fig. 3 Shown, motor 5 stops operating at once, and feed inlet 2 is closed by gate 7 completely at this time, and sealing strip 3 is killed by gate 7, this When not only realized the closing of gate 7, but also realize the compression of sealing strip 3.

Second stage (gate opening): when gate 7 needs to open, motor 5 is rotated backward, and speed reducer is driven to reversely rotate Speed reducer drive lead screw 4 reversely rotate, sliding block 6 matched with lead screw 4 lead screw 4 rotate under conditions of retreat, drive gate 7 and Surface rail 8 moves horizontally, when gate 7 and surface rail 8 touch idler wheel 1 of 2 lower right of feed inlet, gate 7 Under the guidance of surface rail 8, start to move vertically downwards while moving horizontally, guidance gate 7 disengages sealing strip 3；When gate 7 moves to the initial bit in Fig. 2, surface rail 8 completely disengages the idler wheel 1 below feed inlet, and motor is at once It stops operating, entire motion process terminates.

Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, this field Other modifications or equivalent replacement that those of ordinary skill makes the technical solution of the utility model, it is practical without departing from this The spirit and scope of new technique scheme should all cover in the scope of the claims of the utility model.

Claims (2)

1. a kind of self-locking airtight gate, it is characterised in that: including support frame (1), feed inlet is arranged on (1) in support frame as described above (2), the feed inlet (2) circumferentially setting sealing strip (3), support frame as described above (1) is interior to be arranged screw rod (4), support frame as described above (1) side Side setting drives the motor (5) of screw rod (4) rotation, is arranged sliding block (6) on the screw rod (4), is arranged on the sliding block (6) Gate (7), gate (7) the front end lower end surface constant inclined surface guide rail (8)；Support frame as described above (1) two sides are located at the feed inlet (2) lower section and screw rod (4) back-end location are respectively provided with multiple groups idler wheel one (11), idler wheel one (11) upper surface and the gate (7) lower end surface is in same level.

2. a kind of self-locking airtight gate according to claim 1, it is characterised in that: gate (7) the rear end setting is logical Pin (10) are arranged in hole (9), one end that the through-hole (9) is stretched out on sliding block (6) top.