CN2723516Y

CN2723516Y - Foot pier protector for small water gate screw type lift gate

Info

Publication number: CN2723516Y
Application number: CN 200420082289
Authority: CN
Inventors: 李建帮
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-24
Filing date: 2004-08-24
Publication date: 2005-09-07
Anticipated expiration: 2014-08-24

Abstract

The utility model discloses a foot pier protector for a screw type lifting gate of a small water gate. In the small water gate, the foot pier used for arranging the screw type lifting gate often can be damaged because of reverse and oversize prop force which is generated after a gate sheet is touched to the dam bottom when the gate is closed, and the reason is that the gate sheet is touched to the dam bottom but the lifting screw still falls sequentially under the action of outer force. Because the gate sheet and the lifting screw are connected in rigidity, and the reverse prop force generated after being touched to the dam bottom can be transmitted to the foot pier poured by the steel reinforced concrete through the gate sheet, the lifting screw, a socket, a fixed bottom board and a foot bolt; the fixed foot bolt can be pulled up, the foot pier can be exploded, and the accident that the water gate can not be opened or closed normally can be happened when the fall of the screw can not be stopped in time. A limiting device is arranged on the proper position of the lifting screw, the lifting screw can not fall sequentially or can not be stopped automatically when the gate sheet is touched to the dam bottom, and the foot pier can be protected effectively without being damaged.

Description

The pin pier protective device of small-sized sluice screw lift gate

Technical field

The utility model relates to a kind of pin pier protective device of sluice headstock gear, especially refers to the pin pier protective device of the screw lift gate of small-sized sluice.

Background technology

What at present the marine outfall in small reservoir, little river course, irrigation canals and ditches or the brook in vast rural area of China and small city etc. located that the sluice headstock gear of common retaining, flood retention, retaining tide generally adopts is the screw lift gate.General less gate drives with manpower, and slightly bigger opens and closes with motor.Its basic structure all is that barrage is set in the river course one, and one or several gate is set in the middle of the dam.The both sides of the gate sheet of dash are inserted in the watertight groove on the barrage wall.The top of gate sheet is fixed with the lifting screw of a molar line, the lifting of lifting screw relies on the driving wheel with internal thread to drive, the driving wheel bottom is provided with the sleeve with same screw thread, and jacket casing is in the outside of lifting screw, the cylindrical of sleeve and abundant square fixed base plate firm welding.Near four jiaos of fixed base plate a screw is arranged respectively, four foundation bolts are embedded on the pin pier that steel concrete casts, and with nut with the fixed base plate fixation.When opening and closing gate, with manpower or motor rotating drive wheel, the screw thread at its center drives lifting screw, and preformed hole and sleeve that lifting screw passes in the middle of the pin pier can be done the oscilaltion campaign.This and uncomplicated screw lift gate has been continued to use decades in China.But in actual use, the sluice administrative staff often are the pin pier explosion of sluice, and foundation bolt pulls up, and cause sluice normally not open and close and worry.Study carefully the reason that its pin pier damages, lack due to the spacing protective device when mainly being lifting screw decline.

Originally, when driving lifting screw decline closed shutter, because of there is water the korneforos, whether the bottom that operating personnel do not see gate sheet put in place, and was also continuing downward drive screw or the untimely drive motors of closing.Because gate sheet and lifting screw are to be rigidly connected, gate sheet can produce the top power that makes progress after touching the barrage bottom, and this top power is by lifting screw, sleeve, pass to foundation bolt and pin pier because of deciding base plate.Therefore this reverse top power is very huge sometimes, usually causes the explosion of pin pier, foundation bolt pulls up and accident that gate can not normally be opened and closed.Long-term next, this accident potential can not get overcoming, and also nobody draws attention.In view of the foregoing, the applicant has designed a kind of foolproof protective device through practice, is subjected to sluice administrative staff's welcome deeply.

The utility model content

The utility model wants the purpose of technical solution problem to be: the screw lift gate that overcomes existing small-sized sluice easily produces reverse top power when cutting out; the explosion of pin pier, foundation bolt are pulled up; the drawback that sluice can not normally open and close; for the screw lift gate provides a kind of protective device, the sluice administrative staff are without fear of an attack from the rear.

The technical scheme of the utility model technical solution problem is: in the appropriate location of the lifting screw of the screw lift gate of sluice; a stopping means is set; when driving lifting screw decline; when can making driving force at the bottom of touching the dam, gate sheet stops; thereby avoid producing top power upwards; reach the purpose of protecting the unlikely explosion of pin pier, foundation bolt not to be pulled up, the generation of minimizing accident.

Main body of the present utility model is two symmetrical Ω shape anchor ears, and the internal diameter size of Ω shape anchor ear is slightly less than the outside dimension of lifting screw, and the two ends of each Ω shape anchor ear are provided with the screw of fastening usefulness.The also subsidiary travel switch that a normally closed interlock is arranged of the Ω shape anchor ear of on the lifting screw of the screw lift gate of motorized motions, installing.

The utility model is simple in structure, manufacturing, easy for installation, with low cost, and the protection effect is good, and is easy to promote.Can effectively protect the pin pier not to be damaged after small-sized sluice is loaded onto, remove sluice administrative staff's trouble and worry, simultaneously the sluice maintenance cost is saved greatly.

Description of drawings

Fig. 1 is the schematic diagram that the utility model is installed on the motorized motions lifting screw;

Fig. 2 is that the utility model is installed in the vertical view on the lifting screw and the elevation of single Ω shape anchor ear;

Fig. 3 is that the utility model is installed in the schematic diagram on the manpower driving gate;

Each title and sequence number among the figure: 1. Ω shape anchor ear, 2. lifting screw, 3. driving wheel 4. fastening bolts 5. travel switches, 6. push rod, 7. sleeve, 8. fixed base plate, 9 pin piers, 10. foundation bolt.

The specific embodiment

Now contrast accompanying drawing, installation of the present utility model and mode of occupation are further described: before the installation, rotation driving wheel 3, earlier gate sheet is slowly reduced to the position of just touching at the bottom of the dam, lifting screw 2 near driving wheel 3 on the plan-position, two Ω shape anchor ears, 1 usefulness fastening bolt 4 is fixing, promptly install.If motor-driven lift gate then also must be adorned the travel switch 5 of a normally closed interlock at an end of Ω shape anchor ear 1, its control circuit and start-up circuit are connected in series.During use, when being closed by manual driven as if gate, lifting screw 2 slowly descends, and in the time of at the bottom of gate sheet touches check dam, the Ω shape anchor ear of fixing on the lifting screw 2 this moment 1 also just arrives the last plane of driving wheel 3, makes lifting screw 2 can not continue to descend and stop.Equally when the motor-driven closed shutter; lifting screw 2 drops to gate sheet when touching at the bottom of the dam position; Ω shape anchor ear 1 just arrives the last plane of driving wheel 3; meanwhile the push rod 6 on the travel switch 5 is open; the power supply of drive motors is cut off, and lifting screw 2 and gate sheet stop to descend, thereby can avoid producing top power upwards; make fixed base plate 8 and foundation bolt 10 no longer stressed, pin pier 9 has also just obtained effective protection.

Claims

1. the pin pier protective device of the screw lift gate of a small-sized sluice, the main body that it is characterized in that this protective device is the Ω shape anchor ear (1) of two symmetries, is fixed on the appropriate location with the rigidly connected lifting screw of gate sheet (2) with fastening bolt (4).

2. the pin pier protective device of the screw lift gate of small-sized sluice as claimed in claim 1 is characterized in that lifting screw (2) and the driving wheel (3) when described appropriate location refers to just at the bottom of the dam is touched in the gate sheet bottom gone up the intersection on plane.

3. the pin pier protective device of the screw lift gate of small-sized sluice as claimed in claim 1 is characterized in that motor-driven gate, also attaches the travel switch (5) that a normally closed interlock is arranged, and is fixed on an end of Ω shape anchor ear (1).