CN213014577U - Pivot connection structure and have earial drainage gate that surges of this structure - Google Patents

Abstract

The utility model provides a pivot connection structure and have bleeder gate that surges of this structure, this connection structure includes: the mounting seat is provided with a support shaft; the external member is in limiting sleeve joint with the supporting shaft and is in rotating connection with the supporting shaft; the end part of the rotating shaft is provided with an installation part which is sleeved outside the external member; a fastening bolt for fixing the mounting part and the external member; wherein, the outer side of the sleeve is provided with a screw hole, the side wall of the mounting part is provided with an adjusting connecting part, and the adjusting connecting part extends along the axial direction of the rotating shaft; the fastening bolt penetrates through the adjusting connecting part to be connected with the screw hole, and the rotating shaft and the sleeve are fixed. This gate includes: a rotating shaft connecting structure; the upper part of the door panel is connected with the rotating shaft; and the hydraulic driving assembly drives the door panel to rotate around the mounting seat, so that the lower end of the door panel is opened or closed. This pivot connection structure can carry out the fine adjustment to installation length to the distance tolerance of adaptation weir crest both sides installation wall makes the installation of pivot and gate more stable firm, and the security is higher, and pivot connection structure's installation strong adaptability.

Description

Pivot connection structure and have earial drainage gate that surges of this structure

Technical Field

The utility model relates to a plumbing technical field, concretely relates to pivot connection structure and have bleeder gate that surges of this structure.

Background

In municipal drainage engineering, for purposes such as realizing that the accuse source cuts dirty, waterlogging prevention and control, rainwater utilization, set up in drainage system usually and cut off and regulate and hold the facility to effectively control the dirty confluence of rain, overflow, pollution scheduling problem, guarantee that drainage system is stable, safe, improve sewage treatment efficiency and rainwater utilization ratio etc. simultaneously.

Facilities such as a regulation pool, a catch basin and the like of a drainage system are provided with various gates to control water flow, and the facilities are divided into a flow regulation gate, an overflow gate, a discharge gate, a flushing gate and the like according to the functions of the gates. Various gates are different according to the function, and their structure and mode of operation are different, and the mode of operation of gate is like: the door plate moves up and down, rotates around a rotating shaft, and the like. In which a gate is rotatably operated about a shaft, which is usually mounted in connection with the side wall of the weir to support the gate.

At present, the rotating shaft is mainly connected to the mounting seat through a bearing, the mounting seat is fixedly mounted on the weir crest side wall through bolts, and the length of the rotating shaft and the mounting seats on the two sides after mounting is fixed and unchanged and cannot be adjusted. In the actual installation process, the side walls on the two sides of the weir crest usually have certain construction tolerance, namely, the spacing distance and the installation length of the rotating shaft and the installation bases on the two sides are easy to have production errors and cannot be completely adapted, so that the installation operation of the rotating shaft and the gate thereof has high precision requirement on products, the installation operation difficulty is large, and the safety of the gate is easily influenced due to the problem of looseness caused by low adaptation degree.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a problem that exists among the above-mentioned prior art is directed against to the purpose, provides a pivot connection structure and has the earial drainage gate that surges of this structure, and this pivot connection structure can carry out the micro-adjustment to installation length to the distance tolerance of adaptation weir crest both sides installation wall makes the installation of pivot and gate more stable firm, and the security is higher, and pivot connection structure's installation strong adaptability.

In order to achieve the above purpose, the utility model adopts the following scheme:

a rotating shaft connecting structure comprising:

the mounting seat is provided with a supporting shaft and is mounted on the mounting wall of the weir crest flow channel;

the external member is in limiting sleeve joint with the supporting shaft and is in rotating connection with the supporting shaft;

the end part of the rotating shaft is provided with an installation part which is sleeved outside the external member;

the fastening bolt is used for connecting the fixed mounting part and the external member;

the outer side of the sleeve is provided with a screw hole, the side wall of the mounting part is provided with an adjusting connecting part, and the adjusting connecting part extends along the axis direction of the rotating shaft; the fastening bolt penetrates through the adjusting connecting portion to be connected with the screw hole, and the rotating shaft and the sleeve piece are connected and fixed, so that the rotating shaft and the supporting shaft are coaxially installed.

In an embodiment of the present disclosure, the adjusting connection portion is a waist hole, a corrugated hole or a through hole set adapted to the fastening bolt, and the through hole set includes a plurality of through holes, and the plurality of through holes are arranged along the axis direction of the rotating shaft.

In one embodiment of the present disclosure, the fastening bolt includes a screw, a flat washer, and a spring washer, which are located outside the adjustment connection portion.

In an embodiment disclosed in the present application, the support shaft further includes a bearing, the bearing is sleeved on the support shaft, and the external member is sleeved outside the bearing.

In one embodiment of the present disclosure, the bearing stopper is mounted on an end of the sleeve to limit the bearing in the inner cavity of the sleeve.

In an embodiment disclosed in the present application, the bearing stopper includes a plurality of retaining rings, the retaining rings are uniformly installed on two end surfaces of the sleeve along a circumference, and each retaining ring partially extends to the outside of the inner cavity of the sleeve to limit the bearing in the inner cavity of the sleeve.

Utensil pivot connection structure's drainage gate surges includes:

the rotating shaft connecting structure is described above;

the upper part of the door plate is connected with the rotating shaft and is matched with the weir crest flow channel;

and the hydraulic driving assembly drives the door panel to rotate around the mounting seat, so that the lower end of the door panel is opened or closed.

In an embodiment of the application, the two sides of the door panel are provided with first sealing components, the bottom of the door panel is provided with a second sealing component, and the first sealing components and the second sealing components are used for being matched with the weir notch flow channel to realize sealing when the door panel is closed.

In one embodiment of the disclosure, the first sealing assembly comprises a sealing strip, a pressing plate and a connecting bolt, wherein the connecting bolt penetrates through the pressing plate, the sealing strip and the edge of the door panel to fix the pressing plate and the sealing strip on the edge of the door panel; the through-hole that supplies connecting bolt to pass on door plant edge and/or the sealing strip is the bar hole, the bar hole is parallel with pivot axis direction along the direction of stretching.

In one embodiment of the present disclosure, the hydraulic driving assembly includes a hydraulic cylinder, a piston end of the hydraulic cylinder is hinged to the door plate, and a cylinder end is hinged to the bottom or the side wall of the weir crest flow passage.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the rotating shaft connecting structure, the sleeve piece is rotatably connected with the supporting shaft, and the fastening bolt fixedly connects the mounting part at the end part of the rotating shaft with the sleeve piece, so that the rotating shaft can rotate around the supporting shaft; establish the regulation connecting portion that extend along pivot axis direction on the installation department lateral wall, fastening bolt wears to locate in adjusting connecting portion with pivot and external member fixed connection, changes fastening bolt and the relative position of adjusting connecting portion, can realize the adjustment of pivot and mount pad total connection length. Therefore, the length of the connecting structure of the rotating shaft and the mounting seat can be adjusted according to actual needs to adapt to the distance between the mounting walls on two sides of the weir crest flow channel, the practicability and the adaptability are high, the installation operation of the rotating shaft and the gate is simpler, and the mounting structure is more stable.

2. The rotating shaft and the supporting shaft are connected through the bearing and the sleeve piece, the bearing is limited in the inner cavity of the sleeve piece through the bearing blocking piece, so that the rotating shaft can normally and efficiently rotate around the supporting shaft, the abrasion of a connecting part is small, and the service life is long; radial deviation and axial sliding are not easy to occur, and the connecting structure is stable and reliable.

3. The utility model provides a relief gate surges, the connection length of its pivot and mount pad can carry out the adaptability adjustment according to the distance of actual weir crest runner both sides installation wall for gate strong adaptability, installation operation is more simple and convenient, and mounting structure is more stable firm.

4. A through hole for a connecting bolt to pass through is arranged on the edge of a door panel/a sealing strip of the hydraulic drainage gate to be a strip-shaped hole, and the extension direction of the strip-shaped hole is parallel to the axial direction of the rotating shaft; through adjusting the relative position of bar hole and connecting bolt, can realize adjusting the position of both sides sealing strip and door plant for the total installation length of door plant and sealing strip suits with pivot connection structure and the distance of weir crest runner both sides installation wall, guarantees the leakproofness of gate.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings 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 application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the connecting structure of the rotating shaft of the present invention.

Fig. 2 is a schematic view of the pivot connection structure according to the present invention.

Fig. 3 is a schematic structural diagram of the mounting seat of the present invention.

FIG. 4 is a schematic view of a connection structure of the support shaft, the sleeve and the rotation shaft according to the first embodiment.

Fig. 5 is a schematic structural diagram of the middle corrugated hole of the present invention.

Fig. 6 is a schematic structural diagram of the middle through hole group of the present invention.

Fig. 7 is a schematic structural diagram of a kit according to a second embodiment.

FIG. 8 is a schematic view of a connection structure of a bearing and a sleeve according to a second embodiment.

FIG. 9 is a schematic view of a bearing stopper mounting structure according to a second embodiment.

Fig. 10 is a schematic structural view of the spring washer of the present invention.

Fig. 11 is a schematic structural view of the hydraulic relief gate of the present invention.

Fig. 12 is a partially enlarged schematic view of a portion a in fig. 11 according to the present invention.

Reference numerals:

1: a mounting seat; 11. a support shaft; 2. a kit; 21. a screw hole; 22. a retainer ring; 32. an adjustment connection; 321. a waist hole; 322. a corrugated hole; 323. a group of through holes; 3. a rotating shaft; 31. an installation part; 4. fastening a bolt; 41. a flat washer; 42. a spring washer; 5. a bearing; 6. a door panel; 7. a sealing strip; 71. pressing a plate; 72. a connecting bolt; 8. and a hydraulic cylinder.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example one

Referring to fig. 1 to 6 and 10, an embodiment of the present invention provides a rotating shaft connection structure, which is suitable for installing a gate rotating shaft at a weir crest flow channel. The structure comprises a mounting seat 1, a sleeve 2, a rotating shaft 3, a fastening bolt 4 and the like.

Referring to fig. 3, the mounting base 1 includes a mounting plate, and a support shaft 11 is disposed on the mounting plate. The mounting plate of the mounting seat 1 is fixedly mounted on the mounting wall of the weir crest flow channel through a bolt piece to play a role in supporting and connecting.

The external member 2 is of an annular structure, an inner ring of the external member is matched with the supporting shaft 11, and the external member is in limiting sleeve joint with the supporting shaft 11 and is rotatably connected with the supporting shaft 11, can rotate relative to the supporting shaft 11, but cannot move along the axial direction of the supporting shaft 11. A limiting stopper can be arranged at the end of the supporting shaft 11 to limit the sleeve member 2, so that the sleeve member 2 is prevented from moving along the axial direction of the supporting shaft 11.

Both ends of pivot 3 all are equipped with installation department 31, and installation department 31 and external member 2 looks adaptation cup joint in the outside of external member 2, can be for rising to rise to cup joint.

Meanwhile, a plurality of fastening bolts 4 connect and fix the mounting part 31 of the rotating shaft 3 and the sleeve 2 from the outer side of the rotating shaft 3 to the inner side.

Wherein, the outer side of the sleeve 2 is uniformly provided with a plurality of screw holes 21; the side wall of the mounting portion 31 is provided with a plurality of adjusting connection portions 32 for the fastening bolts 4 to pass through, and the adjusting connection portions 32 can correspond to the screw holes 21 one to one. The length direction of the adjustment connecting portion 32 extends in the axial direction of the rotary shaft 3. During installation, the fastening bolt 4 penetrates through the adjusting connecting portion 32 from outside to inside to be in threaded connection with the screw hole 21 on the side portion of the sleeve 2, the rotating shaft 3 and the sleeve 2 are fixedly connected, the rotating shaft 3 and the supporting shaft 11 are coaxially installed, and the rotating shaft 3 can rotate around the supporting shaft 11. The fastening bolt 4 is arranged in the adjusting connecting part 32 in a penetrating way, and the relative position of the fastening bolt and the adjusting connecting part 32 can be adjusted, so that the connecting length of the rotating shaft 3 and the mounting seat 1 can be adjusted.

Referring to fig. 2, 5 and 6, the adjusting connection portion 32 is adapted to the fastening bolt 4 and may have a shape of a waist hole 321, a corrugated hole 322 or a through hole group 323. The through hole group 323 includes a plurality of through holes arranged in the axial direction of the rotating shaft 3.

Referring to fig. 4 and 10, the fastening bolt 4 includes a screw, a flat washer 41 and a spring washer 42, and the flat washer 41 and the spring washer 42 are located outside the adjusting connection portion 32 and are used for cooperating with the screw to fasten the mounting portion 31 of the rotating shaft 3 to the sleeve 2. A flat washer 41 is provided for increasing the fastening area and preventing the screw from scratching the adjustment connection portion 32; set up spring washer 42, effectively increase the pretightning force of screw, prevent that pivot 3 and back shaft 11 from rotating the in-process each other, and the screw that causes because of the vibration is not hard up, makes the connection structure of pivot more stable firm.

In the rotating shaft connecting structure of the embodiment, the sleeve 2 is rotatably connected with the supporting shaft 11, and the fastening bolt 4 fixedly connects the mounting part 31 at the end part of the rotating shaft 3 with the sleeve 2, so that the rotating shaft 3 can rotate around the supporting shaft 11; establish on the installation department 31 lateral wall along the regulation connecting portion 32 that the pivot axis direction extends, fastening bolt 4 wears to locate in adjusting the connecting portion with pivot 3 and external member 2 fixed connection, changes fastening bolt 4 and the relative position of adjusting connecting portion 32, can realize the adjustment of pivot 3 and 1 total connection length of mount pad. Therefore, the length of the connecting structure of the rotating shaft 3 and the mounting seat 1 can be adjusted according to actual needs to adapt to the distance between the mounting walls on the two sides of the weir crest flow channel, the practicability and the adaptability are high, the mounting operation of the rotating shaft 3 and the gate thereof is simpler, and the mounting structure is more stable.

Example two

Referring to fig. 1 to 3, 5 to 10, the embodiment of the present invention discloses a rotating shaft connecting structure, which adds a bearing 5 and a bearing stopper on the basis of the first embodiment, that is, the present invention discloses a rotating shaft connecting structure, which includes a mounting seat 1, a sleeve member 2, a rotating shaft 3, a fastening bolt 4, a bearing 5 and a bearing stopper, etc.

The mounting base 1 comprises a mounting plate, and a supporting shaft 11 is arranged on the mounting plate. The mounting plate of the mounting seat 1 is fixedly mounted on the mounting wall of the weir crest flow channel through a bolt piece to play a role in supporting and connecting.

The inner ring of the bearing 5 is in matched, tensioned and sleeved with the support shaft 11, so that the bearing 5 is fixedly sleeved on the support shaft 11. The sleeve member 2 is of an annular structure, an inner ring of the sleeve member is matched with an outer ring of the bearing 5, and the sleeve member is tightly sleeved outside the bearing 5, so that the sleeve member 2 can rotate relative to the supporting shaft 11. The connecting part is connected by the bearing 5 in a rotating way, so that the abrasion of the connecting part is small and the service life is long; and the connecting part is not easy to generate radial deviation, the coaxiality is high, and the connecting structure is stable and firm.

Bearing stoppers are arranged at two end parts of the sleeve 2, and the bearing stoppers are partially positioned outside the inner ring of the sleeve 2 to limit the bearing 5 in the inner cavity of the sleeve 2 so as to prevent the bearing 5 and the sleeve from slipping off each other.

Further, the bearing stopper can be a plurality of retaining rings 22, the plurality of retaining rings 22 are uniformly arranged on two end faces of the sleeve 2 along the circumference, each retaining ring 22 partially extends out of the inner cavity of the sleeve 2, and the plurality of retaining rings 22 are matched to limit the bearing 5 in the inner cavity of the sleeve 2. The plurality of split retainer rings 22 are adopted to limit the bearing 5 on the circumference in a point contact manner, so that the stability of the rotating shaft mounting structure can be effectively improved. When one or a part of the check rings 22 is loosened, the limiting effect of other check rings 22 is not influenced, and the abrasion caused by vibration is light and the noise is low in work.

Both ends of pivot 3 all are equipped with installation department 31, and installation department 31 and the external side looks adaptation of external member 2 cup joint in the outside of external member 2. And a plurality of fastening bolts 4 which are arranged from the outer side to the inner side of the mounting part 31 and connect and fix the mounting part 31 and the suite 2.

Wherein, the outer side of the sleeve 2 is uniformly provided with a plurality of screw holes 21; the side wall of the mounting portion 31 is provided with a plurality of adjusting connection portions 32 for the fastening bolts 4 to pass through, and the adjusting connection portions 32 can correspond to the screw holes 21 one to one. The length direction of the adjustment connecting portion 32 extends in the axial direction of the rotary shaft 3. During installation, the fastening bolt 4 penetrates through the adjusting connecting portion 32 from outside to inside to be in threaded connection with the screw hole 21 on the side portion of the sleeve 2, the rotating shaft 3 and the sleeve 2 are fixedly connected, the rotating shaft 2 and the supporting shaft 11 are coaxially installed, and the rotating shaft 3 can rotate around the supporting shaft 11. The fastening bolt 4 is arranged in the adjusting connecting part 32 in a penetrating way, and the relative position of the fastening bolt and the adjusting connecting part 32 can be adjusted, so that the connecting length of the rotating shaft 3 and the mounting seat 1 can be adjusted.

Referring to fig. 2, 5 and 6, the adjusting connection portion 32 is adapted to the fastening bolt 4 and may have a shape of a waist hole 321, a corrugated hole 322 or a through hole group 323. The through hole group 323 includes a plurality of through holes arranged in the axial direction of the rotating shaft 3.

Referring to fig. 4 and 10, the fastening bolt 4 includes a screw, a flat washer 41 and a spring washer 42, and the flat washer 41 and the spring washer 42 are located outside the adjusting connection portion 32 and are used for cooperating with the screw to fasten the mounting portion 31 of the rotating shaft 3 to the sleeve 2. A flat washer 41 is provided for increasing the fastening area and preventing the screw from scratching the adjustment connection portion 32; set up spring washer 42, effectively increase the pretightning force of screw, prevent that pivot 3 and back shaft 11 from rotating the in-process each other, and the screw that causes because of the vibration is not hard up, makes the connection structure of pivot more stable firm.

In the rotating shaft connecting structure of the embodiment, the rotating shaft is connected with the supporting shaft through the bearing and the sleeve piece, the bearing is limited in the inner cavity of the sleeve piece through the bearing stopper, so that the rotating shaft can normally and efficiently rotate around the supporting shaft, the abrasion of the connecting part is small, and the service life is long; radial deviation and axial sliding are not easy to occur, the coaxiality is high, and the connecting structure is stable and reliable.

EXAMPLE III

Referring to fig. 11 and 12, an embodiment of the present invention provides a hydraulic drainage gate with a rotation shaft connecting structure, which includes a rotation shaft connecting structure, a door plate 6, a hydraulic driving assembly, and the like.

The rotating shaft connecting structure is the rotating shaft connecting structure described in the first embodiment or the second embodiment. The door plate 6 is matched with the weir crest flow passage in size, and the upper part of the door plate 6 is connected with the rotating shaft 3. The hydraulic driving assembly is used for driving the door panel 6 and the rotating shaft 3 to rotate around the supporting shaft 11 of the mounting seat 1, so that the lower end of the door panel 6 is opened or closed, and drainage or interception is realized.

The two sides of the door plate 6 are provided with first sealing components, the bottom of the door plate 6 is provided with a second sealing component, and the first sealing components and the second sealing components are used for being matched with the side wall and the bottom wall of the weir crest flow channel to realize sealing when the door plate 6 is closed.

Wherein the first sealing assembly comprises a sealing strip 7, a pressure plate 71 and a connecting bolt 72. The sealing strip 7 is matched with the side edge part of the door panel 6, and one side of the sealing strip is attached to the upper edge of the door panel 6 and laid along the edge of the door panel 6; the pressing plate 71 is matched with the sealing strip 7 and pressed on the other side of the sealing strip 7; the screw of the connecting bolt 72 passes through the pressing plate 71, the sealing strip 7 and the edge of the door panel 6, and is matched with the nut to fixedly install the pressing plate 71 and the sealing strip 7 on the edge of the door panel 6. One side of the sealing strip 7 extends to the outer side of the edge of the door plate 6 and is used for being attached to the side wall of the weir crest flow channel to realize sealing.

In one embodiment, the through hole for the connecting bolt 72 to pass through on the edge of the door panel 6 is a strip-shaped hole, and the length direction of the strip-shaped hole extends to the side of the door panel 6, i.e. the extending direction of the strip-shaped hole is parallel to the axial direction of the rotating shaft 3.

Further, another embodiment is that the through hole for the connecting bolt 72 to pass through on the sealing strip 7 is a strip-shaped hole, and the length direction of the strip-shaped hole extends to the side surface of the door panel 6, i.e. the extending direction of the strip-shaped hole is parallel to the axial direction of the rotating shaft 3.

The hydraulic driving assembly comprises a hydraulic cylinder 8, the piston end of the hydraulic cylinder 8 is hinged with the door plate, and the cylinder body end of the hydraulic cylinder 8 is hinged with the bottom or the side wall of the weir crest flow passage. When the hydraulic cylinder 8 operates, the door plate 6 and the rotating shaft 3 can be driven to rotate around the mounting seat 1 on the side wall of the upper part of the weir crest flow channel, so that the gate is opened or closed.

The discharge gate of this embodiment, its pivot 3 can carry out the adaptability adjustment with the distance of mount pad 1 according to actual weir crest runner both sides installation wall for gate strong adaptability, installation operation is more simple and convenient, and mounting structure is more stable firm. A through hole for a connecting bolt to pass through is arranged on the edge of the door panel 6/the sealing strip 7 and is a strip-shaped hole, and the extension direction of the strip-shaped hole is parallel to the axial direction of the rotating shaft 3; the positions of the sealing strips 7 on the two sides and the door panel 6 can be adjusted by adjusting the relative positions of the strip-shaped holes and the connecting bolts 72, so that the total installation length of the door panel 6 and the sealing strips 7 is adapted to the distance between the rotating shaft connecting structure and the installation walls on the two sides of the weir crest flow channel, and the sealing performance of the gate is ensured. And the rotating shaft 3 of the gate is arranged on the upper part, the opening on the lower part of the door plate 6 is used for draining, and the hydraulic driving component only needs a small driving stroke to open the door plate 6 by a small angle, so that a large opening and a large drainage quantity can be obtained.

In the foregoing, only certain exemplary embodiments have been described briefly. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings, or are orientations and positional relationships conventionally understood by those skilled in the art, which are merely for convenience of description and simplicity of description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected or detachably connected or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described above. Of course, they are merely examples and are not intended to limit the present invention.

Claims (10)

1. A rotating shaft connecting structure, comprising:

the mounting seat (1) is provided with a supporting shaft (11), and the mounting seat (1) is mounted on a mounting wall of the weir crest flow channel;

the external member (2) is in limiting sleeve joint with the supporting shaft (11) and is rotatably connected with the supporting shaft (11);

the end part of the rotating shaft (3) is provided with an installation part (31), and the installation part (31) is sleeved outside the sleeve (2);

a fastening bolt (4) for connecting the fixed mounting part (31) and the kit (2);

the outer side of the sleeve (2) is provided with a screw hole (21), the side wall of the mounting part (31) is provided with an adjusting connecting part (32), and the adjusting connecting part (32) extends along the axial direction of the rotating shaft (3); the fastening bolt (4) penetrates through the adjusting connecting part (32) to be connected with the screw hole (21), and the rotating shaft (3) and the sleeve piece (2) are connected and fixed, so that the rotating shaft (3) and the supporting shaft (11) are coaxially installed.

2. A rotary shaft connection structure according to claim 1, wherein the adjusting connection portion (32) is a waist hole (321), a corrugated hole (322) or a through hole group (323) adapted to the fastening bolt (4), and the through hole group (323) includes a plurality of through holes arranged in the axial direction of the rotary shaft (3).

3. A spindle connection according to claim 1 or 2, characterized in that the fastening bolt (4) comprises a screw, a flat washer (41) and a spring washer (42), the flat washer (41) and the spring washer (42) being located outside the adjustment connection (32).

4. The connecting structure of the rotating shaft according to claim 1 or 2, further comprising a bearing (5), wherein the bearing (5) is sleeved on the supporting shaft (11), and the sleeve (2) is sleeved outside the bearing (5).

5. The connecting structure of the rotating shaft according to claim 4, characterized in that the connecting structure of the rotating shaft further comprises a bearing stopper, the bearing stopper is mounted at the end of the sleeve (2) to limit the bearing (5) in the inner cavity of the sleeve (2).

6. The connecting structure of the rotating shaft according to claim 5, wherein the bearing stopper comprises a plurality of retaining rings (22), the retaining rings are uniformly arranged on two end faces of the sleeve (2) along the circumference, each retaining ring partially extends out of the inner cavity of the sleeve (2) to limit the bearing (5) in the inner cavity of the sleeve (2).

7. Utensil pivot connection structure's drainage gate surges, its characterized in that includes:

the spindle connection structure according to any one of claims 1 to 6;

the upper part of the door plate (6) is connected with the rotating shaft (3) and is matched with the weir crest flow channel;

and the hydraulic driving assembly drives the door panel (6) to rotate around the mounting seat (1) so as to open or close the lower end of the door panel (6).

8. The hydraulic drainage gate with the rotating shaft connecting structure according to claim 7, wherein the door panel (6) is provided with first sealing components at two sides and a second sealing component at the bottom, and the first sealing components and the second sealing components are used for being matched with the weir crest flow channel to realize sealing when the door panel (6) is closed.

9. The hydraulic drainage gate with the rotating shaft connecting structure according to claim 8, wherein the first sealing assembly comprises a sealing strip (7), a pressing plate (71) and a connecting bolt (72), the connecting bolt (72) penetrates through the edges of the pressing plate (71), the sealing strip (7) and the door panel (6) to fix the pressing plate (71) and the sealing strip (7) to the edge of the door panel (6); the through hole that supplies connecting bolt (72) to pass on door plant (6) edge and/or sealing strip (7) is the bar hole, the bar hole is parallel with pivot (3) axis direction along the direction of stretching.

10. The hydraulic drain gate with the pivot connecting structure according to any one of claims 7 to 9, wherein the hydraulic driving assembly comprises a hydraulic cylinder (8), a piston end of the hydraulic cylinder (8) is hinged to the door plate (6), and a cylinder end is hinged to the bottom or the side wall of the weir runner.

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