CN218581602U

CN218581602U - Water spraying equipment for improving shield construction muck

Info

Publication number: CN218581602U
Application number: CN202222689557.3U
Authority: CN
Inventors: 刘明华; 李坤; 张秋芳; 王荟理; 崔盟昭; 田胜领; 鄢海金; 张泽明; 董志垚
Original assignee: Beijing Municipal Construction Co Ltd
Current assignee: Beijing Municipal Construction Co Ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-03-07
Anticipated expiration: 2032-10-12

Abstract

The utility model belongs to the technical field of shield construction, in particular to a water spraying device for improving shield construction muck, which comprises a nozzle body; a cutter head is arranged on one side of the nozzle body, an opening and closing assembly is arranged on the inner wall of the nozzle body and comprises a contact rod, and the contact rod is connected to the inner wall of the nozzle body in a sliding mode; through setting up the feeler lever, can be when the blade disc touches the soil body, the soil body promotes the feeler lever to the nozzle inner wall, drive the plectane simultaneously, transfer line and pivot move to nozzle body inner wall one side, when the pivot removes, can hug the shrouding at the sloping block outer wall, remove the closure to the nozzle body, make the nozzle spout sediment modifier, and when stopping the construction, the feeler lever leaves the soil body, can reset through parts such as the drive plectane of spring, the feeler lever, transfer line and shrouding reset, thereby seal the spout of nozzle body, prevent that the mud piece from plugging up the nozzle body, thereby the problem that the spout easily received the jam when not spraying water has been solved.

Description

Water spraying equipment for improving shield construction muck

Technical Field

The utility model relates to a shield constructs construction technical field, specifically is a hydraulic equipment that is used for shield to construct improvement of construction dregs.

Background

The shield constructs the machine and carries out the during operation, can carry out the dregs improvement to the soil body in the front to make the soil body change and be excavated, in prior art, usually can set up dregs improvement nozzle before the blade disc panel, and improve the dregs in blade disc the place ahead through the dregs improvement agent that erupts in the nozzle.

The muck modifier is usually formed by mixing water, an active agent and other raw materials and is sprayed out from a nozzle, one side of the nozzle is connected with a water pipe, the other end of the water pipe is connected with a foam making device, the foam making device can respectively pump the active agent and water into a foam generator by an active agent pump and a water pump according to a certain proportion, then the foam generator is further mixed with compressed air to generate foam, and the foam is conveyed into the nozzle on a cutter head through a central rotary joint in the front of a shield tunneling machine through an independent pipeline.

In the prior art, in shield construction, as a muck improvement nozzle on a cutter head is in direct contact with an excavated soil body for a long time, the soil body is easy to form mud blocks after being wetted by the nozzle, when the nozzle sprays a modifier, the mud blocks can be prevented from entering through the spraying of the modifier, when the nozzle stops working, the surrounding mud blocks are easy to flow into the nozzle to cause nozzle blockage, and the muck improvement effect at the front end of the cutter head can be reduced after the nozzle is blocked; therefore, the water spraying equipment for improving the shield construction muck is provided aiming at the problems.

SUMMERY OF THE UTILITY MODEL

In order to compensate the deficiency of the prior art, solve the problem that exists among the prior art, the utility model provides a water jet equipment for shield constructs improvement of construction dregs.

The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to a water spraying device for improving shield construction muck, which comprises a nozzle body; a cutter head is arranged on one side of the nozzle body, and an opening and closing assembly is arranged on the inner wall of the nozzle body;

the subassembly that opens and shuts includes the feeler lever, feeler lever sliding connection is at nozzle body inner wall, feeler lever center department rigid coupling has the plectane, plectane one side rigid coupling has the transfer line, the transfer lever shape is L shape, the spout has been seted up to nozzle body inner wall, transfer line one side sliding connection is at the spout inner wall, transfer line top rigid coupling has the pivot, pivot one end rigid coupling has the connecting block, the spout is stretched out to the one end that the pivot was kept away from to the connecting block, the one end rigid coupling that the spout was stretched out to the connecting block has the shrouding, the shrouding shape is right angle arc, the one end that the connecting block was kept away from to the shrouding has been seted up the arc mouth, nozzle body inner wall rigid coupling has the sloping block, transfer line, spout, pivot, connecting block and shrouding all are provided with four groups to be the circumference and distribute in nozzle body inner wall.

Preferably, the subassembly that opens and shuts still includes the spring, the spring rigid coupling is in the bottom of plectane, spring bottom rigid coupling has the bottom plate, bottom plate center department has seted up the round hole, the round hole diameter is greater than the feeler lever, bottom plate one side rigid coupling has the bracing piece, the bracing piece is provided with four groups to be central symmetric distribution in the bottom plate side, nozzle body inner wall top rigid coupling has the briquetting, briquetting and sloping block shape are the annular.

Preferably, the bottom of the pressing block is fixedly connected with a bottom pad, the bottom pad is made of rubber, and the bottom pad is annular.

Preferably, the cover is equipped with fixed lid on the nozzle body top, the trompil unanimous with the nozzle body is seted up to fixed lid top, fixed lid shape is cylindrical, one side rigid coupling that fixed lid is close to the blade disc has first stationary blade, first stationary blade shape is the annular, fixed lid runs through the blade disc in one side, the outer wall rigid coupling that fixed lid runs through blade disc one side has the screw thread, nozzle body outer wall has cup jointed the nut, the nut sets up at the blade disc opposite side, threaded connection nut is passed through to fixed lid one side, one side rigid coupling that the nut is close to the blade disc has the second stationary blade.

Preferably, the one end rigid coupling that the connecting block was kept away from to the shrouding has sealed the pad, sealed pad shape is the arc, sealed pad material is rubber, sealed pad is provided with four groups to distribute in one side of four groups of shroudings respectively.

Preferably, an input pipe is fixedly connected to one side of the nozzle body, and the input pipe is L-shaped.

The utility model discloses an useful part lies in:

1. the utility model discloses a set up the feeler lever at nozzle body inner wall, can be when the blade disc contacts the soil body, the soil body promotes the feeler lever to the nozzle inner wall, thereby drive the plectane through the feeler lever, transfer line and pivot are to nozzle body inner wall one side removal, when the pivot removed simultaneously, can hug closely the shrouding at the sloping block outer wall, thereby remove the closure to the nozzle body, make the nozzle spout the muck modifier, and when stopping the construction, the feeler lever leaves the soil body, can drive the plectane through the restoration of spring, the feeler lever, parts such as transfer line and shrouding reset, thereby seal the spout of nozzle body, prevent that the mud piece from plugging up the nozzle body, thereby solved the problem that the spout easily received the jam when not spraying water.

2. The utility model discloses a cup joint fixed lid in nozzle body one side, can stretch into nozzle body from one side when the installation nozzle body, overlap fixed lid in nozzle body one side afterwards to the nut that sets up through nozzle body opposite side is twisted on the screw thread of fixed lid one side, thereby can fix the position of nozzle body on the blade disc.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of a first embodiment;

FIG. 2 is a schematic perspective cross-sectional view of the first embodiment;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is an enlarged view of FIG. 2 at B;

fig. 5 is a schematic structural diagram of a limiting plate according to a second embodiment.

In the figure: 1. a nozzle body; 201. a feeler lever; 202. a circular plate; 203. a transmission rod; 204. a chute; 205. a rotating shaft; 206. connecting blocks; 207. closing the plate; 208. a sloping block; 209. a spring; 210. a base plate; 211. a support bar; 212. briquetting; 3. a bottom pad; 4. a cutter head; 5. a fixed cover; 6. a first fixing sheet; 7. a nut; 8. a second fixing sheet; 9. a gasket; 10. an input tube; 11. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1 to 4, a water spraying apparatus for improving shield construction muck includes a nozzle body 1; a cutter head 4 is arranged on one side of the nozzle body 1, and an opening and closing assembly is arranged on the inner wall of the nozzle body 1;

the opening and closing assembly comprises a contact rod 201, the contact rod 201 is connected to the inner wall of the nozzle body 1 in a sliding mode, a circular plate 202 is fixedly connected to the center of the contact rod 201, a transmission rod 203 is fixedly connected to one side of the circular plate 202, the transmission rod 203 is L-shaped, a sliding groove 204 is formed in the inner wall of the nozzle body 1, one side of the transmission rod 203 is slidably connected to the inner wall of the sliding groove 204, a rotating shaft 205 is fixedly connected to the top end of the transmission rod 203, a connecting block 206 is fixedly connected to one end of the rotating shaft 205, the end, far away from the rotating shaft 205, of the connecting block 206 extends out of the sliding groove 204, a closing plate 207 is fixedly connected to one end of the closing plate 207, is in a right-angle arc shape, an arc-shaped opening is formed in one end, far away from the connecting block 206, of the closing plate 207, an oblique block 208 is fixedly connected to the inner wall of the nozzle body 1, four groups of the transmission rod 203, the sliding groove 204, the rotating shaft 205, the connecting block 206 and the closing plate 207 are circumferentially distributed on the inner wall of the nozzle body 1;

in the prior art, in shield construction, as the muck improvement nozzle on the cutter head 4 is in direct contact with excavated soil for a long time, the soil is easy to form mud blocks after being wetted by the nozzle, when the nozzle sprays the modifier, the mud blocks can be prevented from entering through spraying of the modifier, when the nozzle stops working, the surrounding mud blocks are easy to flow into the nozzle to cause nozzle blockage, and after the nozzle is blocked, the effect of muck improvement at the front end of the cutter head 4 can be reduced, in order to solve the problem that the nozzle is easy to be blocked when not spraying water, four groups of sealing plates 207 are sealed before the cutter head 4 works, so that one side of the nozzle body 1 is blocked, the mud blocks are prevented from entering, when the cutter head 4 contacts the soil to be excavated, the soil pushes the contact rod 201 to enable the contact rod 201 to move towards the inner wall of the nozzle, and the

circular plates

202, 203 and the rotating shaft 205 are driven to move towards one side through the contact rod 201, when the rotating shaft 205 moves, the sealing plate 207 is driven to move towards one side, and the sealing plate 207 is closely attached to the inclined blocks 208, so that the outer wall of the four groups of the driving rod 207 are opened, thereby the sealing plate can release the sealing plate of the nozzle body to spray the modifier, and the sealing plate 207 can be sprayed out of the nozzle body 1.

The opening and closing assembly further comprises a spring 209, the spring 209 is fixedly connected to the bottom of the circular plate 202, a bottom plate 210 is fixedly connected to the bottom of the spring 209, a round hole is formed in the center of the bottom plate 210, the diameter of the round hole is larger than that of the contact rod 201, a support rod 211 is fixedly connected to one side of the bottom plate 210, four groups of the support rods 211 are arranged and are centrally and symmetrically distributed on the side face of the bottom plate 210, a pressing block 212 is fixedly connected to the top end of the inner wall of the nozzle body 1, and the pressing block 212 and the inclined block 208 are annular;

during operation, through setting up spring 209 and bottom plate 210 in plectane 202 bottom, can be when the blade disc 4 stop working, feeler lever 201 stops to contact the soil body, thereby can reset through spring 209 and push plectane 202 and reset, plectane 202 resets and can drive feeler lever 201 and transfer line 203 and reset, and pivot 205 at transfer line 203 top can drive connecting block 206 and shrouding 207 rotatory, after transfer line 203 resets and finishes, the position of shrouding 207 one side is fixed by briquetting 212, and the position of shrouding 207 opposite side is fixed by sloping block 208, thereby make four shrouding 207 reset, and seal nozzle body 1, thereby prevent that the clod from getting into in the nozzle body 1.

The bottom of the pressing block 212 is fixedly connected with a bottom pad 3, the bottom pad 3 is made of rubber, and the bottom pad 3 is annular;

in operation, by providing the bottom pad 3 at the bottom of the pressing block 212, the impact force between the pressing block 212 and the sealing plate 207 can be reduced when the pressing block 212 contacts the sealing plate 207.

The nozzle comprises a nozzle body 1, and is characterized in that a fixing cover 5 is sleeved at the top end of the nozzle body 1, an opening consistent with the nozzle body 1 is formed in the top end of the fixing cover 5, the fixing cover 5 is cylindrical, a first fixing piece 6 is fixedly connected to one side, close to a cutter disc 4, of the fixing cover 5, the first fixing piece 6 is annular, one side of the fixing cover 5 penetrates through the cutter disc 4, threads are fixedly connected to the outer wall, penetrating through one side of the cutter disc 4, of the fixing cover 5, a nut 7 is sleeved on the outer wall of the nozzle body 1, the nut 7 is arranged on the other side of the cutter disc 4, one side of the fixing cover 5 is connected with the nut 7 through the threads, and a second fixing piece 8 is fixedly connected to one side, close to the cutter disc 4, of the nut 7;

during operation, through cup jointing fixed cover 5 in nozzle body 1 one side, can stretch into nozzle body 1 from blade disc 4 one side earlier when installing nozzle body 1, will fix cover 5 cover in nozzle body 1 one side afterwards, the opposite side of blade disc 4 is stretched afterwards to fixed cover 5 one side, screws on the screw thread of fixed cover 5 one side through nut 7 that nozzle body 1 opposite side set up afterwards to can fix the position of nozzle body 1 on blade disc 4.

A sealing gasket 9 is fixedly connected to one end, away from the connecting block 206, of the sealing plate 207, the sealing gasket 9 is arc-shaped, the sealing gasket 9 is made of rubber, and four groups of sealing gaskets 9 are arranged and distributed on one side of each of the four groups of sealing plates 207;

during operation, through setting up curved sealed pad 9 in shrouding 207 one side, can be when shrouding 207 is sealed, curved sealed pad 9 can carry out waterproof sealing for four group's shrouding 207 and feeler lever 201's contact department to improve shrouding 207's sealed efficiency.

An input pipe 10 is fixedly connected to one side of the nozzle body 1, and the input pipe 10 is L-shaped;

in operation, the L-shaped input pipe 10 is arranged on one side of the nozzle body 1, so that the modifier can be conveniently conveyed into the nozzle body 1 from the center of the cutter head 4.

Example two

Referring to fig. 5, as another embodiment of the present invention, in a first comparative example, a limiting plate 11 is fixedly connected to one side of the nozzle body 1 close to the input pipe 10, and the limiting plate 11 is annular; during operation, through setting up limiting plate 11, can prescribe a limit to the position of nut 7, prevent that nut 7 from deviating from nozzle body 1.

The working principle is that before the cutter head 4 works, four groups of sealing plates 207 are sealed, so that one side of the nozzle body 1 is blocked, mud blocks are prevented from entering the nozzle, when the cutter head 4 contacts soil to be excavated, the soil pushes the contact rod 201, the contact rod 201 moves towards the inner wall of the nozzle, the contact rod 201 drives the circular plate 202, the transmission rod 203 and the rotating shaft 205 to move towards one side of the inner wall of the nozzle body 1, when the rotating shaft 205 moves, the sealing plates 207 are driven to move towards one side, and after the sealing plates 207 contact the sloping blocks 208, the sealing plates 207 are tightly attached to the outer wall of the sloping blocks 208, so that the four groups of sealing plates 207 are opened, so that the sealing of the sealing plates 207 on the nozzle body 1 is relieved, the nozzle can spray out the slag and soil modifier, when the cutter head 4 stops working, the contact rod 201 stops contacting the soil, so that the spring 209 can reset to push the circular plate 202, the reset of the circular plate 202 drives the touch rod 201 and the transmission rod 203 to reset, the rotating shaft 205 at the top of the transmission rod 203 drives the connecting block 206 and the sealing plate 207 to rotate, after the reset of the transmission rod 203 is finished, the position of one side of the sealing plate 207 is fixed by the pressing block 212, the bottom of the pressing block 212 is provided with the bottom pad 3 to reduce the impact force between the pressing block 212 and the sealing plate 207, the position of the other side of the sealing plate 207 is fixed by the inclined block 208, so that four groups of the sealing plates 207 reset and seal the nozzle body 1, the sealing efficiency of the sealing plate 207 can be improved when the sealing plate 207 is sealed by arranging the arc-shaped sealing gasket 9 at one side of the sealing plate 207, so that mud blocks are prevented from entering the nozzle body 1, the fixing cover 5 is sleeved at one side of the nozzle body 1, the nozzle body 1 can firstly stretch into from one side of the cutter head 4 when the nozzle body 1 is installed, then the fixing cover 5 is sleeved at one side of the nozzle body 1, one side of the fixing cover 5 then stretches to the other side of the cutter head 4, the position of the nozzle body 1 can then be fixed to the cutter head 4 by screwing the nut 7 provided on the other side of the nozzle body 1 onto the screw thread on the one side of the fixing cap 5.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. A water spraying device for improving shield construction residue soil comprises a nozzle body (1); a cutter head (4) is arranged on one side of the nozzle body (1), and an opening and closing assembly is arranged on the inner wall of the nozzle body (1), and the nozzle is characterized in that;

the subassembly that opens and shuts includes feeler lever (201), feeler lever (201) sliding connection is at nozzle body (1) inner wall, feeler lever (201) center department rigid coupling has plectane (202), plectane (202) one side rigid coupling has transfer line (203), transfer line (203) shape is L shape, spout (204) have been seted up to nozzle body (1) inner wall, transfer line (203) one side sliding connection is at spout (204) inner wall, transfer line (203) top rigid coupling has pivot (205), pivot (205) one end rigid coupling has connecting block (206), spout (204) are stretched out to the one end that pivot (205) were kept away from to connecting block (206), the one end rigid coupling that spout (204) were stretched out to connecting block (206) has shrouding (207), shrouding (207) shape is the right angle arc, the arc mouth has been seted up to the one end of connecting block (206) is kept away from to shrouding (207), nozzle body (1) inner wall rigid coupling has sloping block (208), transfer line (203), spout (204), pivot (205), connecting block (206) and shrouding (207) all are provided with four groups to be circumference distribution in nozzle body (1) inner wall.

2. The water spraying equipment for improving the shield construction muck according to claim 1, characterized in that: the subassembly that opens and shuts still includes spring (209), spring (209) rigid coupling is in the bottom of plectane (202), spring (209) bottom rigid coupling has bottom plate (210), bottom plate (210) center department has seted up the round hole, the round hole diameter is greater than feeler lever (201), bottom plate (210) one side rigid coupling has bracing piece (211), bracing piece (211) are provided with four groups to be central symmetric distribution in bottom plate (210) side, nozzle body (1) inner wall top rigid coupling has briquetting (212), briquetting (212) and sloping block (208) shape are the annular.

3. The water spraying device for improving shield construction muck according to claim 2, characterized in that: the bottom of the pressing block (212) is fixedly connected with a bottom pad (3), the bottom pad (3) is made of rubber, and the bottom pad (3) is annular.

4. The water spraying device for improving shield construction muck according to claim 3, wherein: nozzle body (1) top cover is equipped with fixed lid (5), the trompil unanimous with nozzle body (1) is seted up on fixed lid (5) top, fixed lid (5) shape is cylindrical, one side rigid coupling that fixed lid (5) are close to blade disc (4) has first stationary blade (6), first stationary blade (6) shape is the annular, fixed lid (5) one side is run through blade disc (4), the outer wall rigid coupling that fixed lid (5) run through blade disc (4) one side has the screw thread, nozzle body (1) outer wall has cup jointed nut (7), nut (7) set up at blade disc (4) opposite side, fixed lid (5) one side is through threaded connection nut (7), one side rigid coupling that nut (7) are close to blade disc (4) has second stationary blade (8).

5. The water spraying device for improving the shield construction muck according to claim 4, wherein: the one end rigid coupling that connecting block (206) was kept away from in shrouding (207) has sealed pad (9), sealed pad (9) shape is the arc, sealed pad (9) material is rubber, sealed pad (9) are provided with four groups to distribute in one side of four group's shroudings (207) respectively.

6. The water spraying device for improving the shield construction muck according to claim 5, wherein: an input pipe (10) is fixedly connected to one side of the nozzle body (1), and the input pipe (10) is L-shaped.