CN213014608U - Floor drain with improved structure - Google Patents

Abstract

The utility model relates to a construction improvement's floor drain, including floor drain main part, collar and floor drain core, the floor drain main part sets firmly in floor drain application position, and the floor drain main part is equipped with the assembly through-hole that a head and the tail link up, and the floor drain core assembles in the assembly through-hole. The hole wall of the assembling through hole is provided with a circle of limiting convex edges which are annularly arranged. The top of the floor drain core body is provided with a circle of mounting convex edges which are annularly arranged on the circumferential side edge of the outer side of the floor drain core body. The mounting ring is of an annular structure, the circumferential side edge of the outer side of the mounting ring is connected with the wall of the assembling through hole, and the mounting ring and the limiting convex edge are respectively abutted to the top surface and the bottom surface of the mounting convex edge to be used for fixedly assembling the floor drain core body. The utility model discloses a structure also can adjust the orientation of floor drain core after the floor drain installation, and the structure of having avoided floor drain core bottom blocks the rivers of the sewer pipe way of floor drain application usefulness.

Description

Floor drain with improved structure

Technical Field

The utility model relates to a sewer drainage structures field, concretely relates to institutional advancement's floor drain.

Background

The existing floor drain, in particular to a floor drain for preventing odor from returning, mostly realizes one-way conduction through a floor drain core body, and further realizes the prevention of odor returning, the prevention of breeding mosquitoes and the like. The floor drain core is provided with a structure for sealing an opening on the bottom surface of the floor drain core through a turnover plate structure on the bottom surface of the floor drain core, particularly in the field of household floor drains, most sewers are transversely arranged, namely, most sewer pipes at the installation position of the floor drain are installed through a 90-degree bent foot joint and the like, so that the turnover plate is positioned in front of the water flow of the sewer when the floor drain turnover plate is opened to drain after the existing floor drain is installed, namely, the turnover plate blocks the water flow in the sewer pipe, and further the drainage efficiency is. When the floor drain core body is assembled to the floor drain main body, the relative direction of the floor drain core body and the floor drain main body after assembly is fixed, and the relative direction between the floor drain main body and the ground where the floor drain main body is installed is also fixed, namely, the problems are met, except that the floor drain direction is changed by smashing the floor or other floor drains are directly changed, no other solution is provided.

If the application number is 201720973952.0, Chinese patent discloses a structure for threaded connection of a floor drain core body and a floor drain main body, the structure needs to be screwed down when the floor drain core body and the floor drain main body are assembled in order to prevent odor from returning, and after the threads are screwed down, the turning direction of a turning plate structure at the bottom of the floor drain core body is relatively fixed, namely if the floor drain main body is not well planned when the bottom surface is paved, the problem that the floor drain drainage efficiency is influenced can be greatly caused, and the use is inconvenient.

Disclosure of Invention

The utility model provides a floor drain of institutional advancement to solve present floor drain appear foretell be not convenient for use, probably influence the efficiency scheduling problem of launching.

The utility model adopts the following technical scheme:

the floor drain with the improved structure comprises a floor drain main body, a mounting ring and a floor drain core body, wherein the floor drain main body is fixedly arranged at the application position of the floor drain, the floor drain main body is provided with an assembly through hole which is communicated end to end, and the floor drain core body is assembled in the assembly through hole. The hole wall of the assembling through hole is provided with a circle of limiting convex edges which are annularly arranged. The top of the floor drain core body is provided with a circle of mounting convex edges which are annularly arranged on the circumferential side edge of the outer side of the floor drain core body. The mounting ring is of an annular structure, the circumferential side edge of the outer side of the mounting ring is connected with the wall of the assembling through hole, the mounting ring and the limiting convex edge are respectively abutted against the top surface and the bottom surface of the mounting convex edge, and the mounting ring and the limiting convex edge are used for fixedly assembling the floor drain core.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

the utility model discloses a collar and spacing bead respectively with installation bead top surface, bottom surface butt come realize this floor drain core of fixed assembly, the fixed component that is about to the floor drain core separately independent setting with the floor drain core, and then realize also can adjust the orientation of floor drain core after the floor drain installation, the structure of having avoided floor drain core bottom blocks the rivers of the sewer line of floor drain application usefulness.

The structure can be used for laying the floor drain on the ground and installing the floor drain main body by workers without considering the orientation problem between the floor drain main body and a sewer pipeline, and the installation is more convenient and quicker. When the floor drain core body is installed in the floor drain main body, the floor drain core body can be installed in the assembly through hole in a proper direction and then the installation ring is assembled, so that the phenomenon that the structure at the bottom of the floor drain core body blocks water flow of a sewer pipeline at the application position of the floor drain is effectively avoided, and the sewer efficiency of a product after application is improved.

Further, the assembling through hole is a through hole structure with a circular cross section. The mounting ring, the limiting convex edge and the mounting convex edge are matched annular structures. The circumferential side edge of the outer side of the mounting ring is in threaded connection with the wall of the assembling through hole.

This assembly through-hole, collar, spacing bead and installation bead only need the geometry to correspond, can realize each other the assembly can to not restrict to circular, but because sewer line is the pipe generally, all establish above-mentioned structure into circular can the maximize utilization space. And the connection structure between the circumferential side edge of the outer side of the mounting ring and the wall of the assembling through hole can also be in clamping connection, bonding connection and the like, the threaded structure is convenient to disassemble and assemble, and the bottom surface of the mounting ring can have certain jacking stress on the top surface of the mounting convex edge after being assembled, so that the assembly of the floor drain core is more stable.

Further, a core body sealing gasket is arranged between the installation convex edge and the limiting convex edge and/or between the peripheral side edge of the floor drain core body and the assembly through hole, the core body sealing gasket is made of flexible materials, and the core body sealing gasket is used for sealing between the floor drain main body and the floor drain core body. Specifically, if the core body sealing gasket is arranged between the mounting convex rib and the limiting convex rib, the better sealing can be simply realized by matching with the jacking pressure of the threaded connection structure.

Further, the mounting ring is disposed adjacent to the top opening of the mounting through hole. The mounting ring is additionally provided with a dismounting part, and the mounting part is arranged in a mode that the cross section of a through hole in the middle of the mounting ring is polygonal, and a convex or concave structure is arranged on the top surface of the mounting ring or the wall of the through hole in the middle of the mounting ring. The limiting convex edge is arranged at the bottom opening of the assembling through hole. The mounting ring needs to be rotated when the mounting ring is dismounted, so that the mounting ring can be conveniently rotated by the dismounting part, and the mounting ring is convenient to dismount.

Further, the floor drain core body comprises a core main body, a turning plate and a counterweight body, wherein the core main body is in a hollow tubular shape, the turning plate is hinged to the bottom of the core main body, the turning plate is used for sealing the opening on the bottom surface of the core main body, and the counterweight body is arranged on the turning plate. The bottom end side edge of the core main body is provided with a main body hinge seat. The turning plate is composed of a turning plate main body and a hinged arm, the head end of the hinged arm is connected to the bottom surface of the turning plate main body, the hinged arm is hinged to the main body hinge seat, and the joint of the hinged arm and the main body hinge seat is arranged close to the tail end of the hinged arm.

Furthermore, a turning plate sealing gasket is arranged at the bottom opening of the turning plate main body and/or the core main body, the turning plate sealing gasket is made of flexible materials, and the turning plate sealing gasket is used for sealing the connecting part between the turning plate main body and the core main body when the turning plate main body is in a state of closing the bottom opening of the core main body. The arrangement of the turnover plate sealing gasket is influenced by the gravity of the counterweight body when the turnover plate main body is in a state of closing the bottom opening of the core main body, and the turnover plate main body has certain jacking pressure stress on the turnover plate sealing gasket, so that the sealing can be better realized.

Furthermore, the turning plate main body is used for sealing the bottom surface opening of the core main body, and when the turning plate main body is in a state of sealing the bottom surface opening of the core main body, the hinged arm is positioned below the turning plate main body and the head end of the hinged arm is connected to the middle of the bottom surface of the turning plate main body. The flap sealing gasket is made of silica gel. When the turning plate main body is in a state of closing the bottom surface opening of the core main body, the turning plate sealing gasket is of a sleeve-shaped structure with a lower opening, and the turning plate sealing gasket is arranged on the top surface of the turning plate main body, the side surface of the turning plate main body and the side edge of the bottom surface of the turning plate main body in a coating mode. Should turn over board main part top surface and be equipped with sealed boss, sealed boss extends towards core main part bottom surface opening and sets up. The turnover plate sealing gasket is arranged on the turnover plate main body, so that the processing and production of parts are facilitated, and due to the arrangement of the sealing bosses, the turnover plate main body is provided with a plurality of sealing surfaces when being in a state of closing the bottom surface opening of the core main body, and the sealing effect is further improved.

Furthermore, the articulated arm is provided with an arm connecting seat which is arranged at the tail end of the articulated arm. The counterweight body is assembled on the arm connecting seat. When the turning plate is in a state of closing the opening on the bottom surface of the core main body, the arm connecting seat is positioned below the plane of the turning plate main body. This arm connecting seat is located the structure of turning over planar below of board main part place, can be when turning over the board and opening, and the counter weight body can not interfere each other with core main part side edge, enlarges the bore of core main part as far as and increases as far as and turn over board opening angle, realizes the offal of floor drain maximize promptly.

Further, the hinge arms are provided in two, and the two hinge arms are juxtaposed. The arm connecting holes of the through hole structures are formed in the middle of the arm connecting seat, and the two arm connecting holes located in the two articulated arms extend along the same straight line. The counterweight body is composed of a connecting column and a counterweight pipe, the connecting column is of a cylindrical structure with two ends extending towards the inside of the two arm connecting holes, the counterweight pipe is of a circular tubular structure, the two ends of the connecting column are inserted into the two arm connecting holes and assembled on the articulated arm, and the counterweight pipe is sleeved outside the connecting column. The structure is simple and convenient, is easy to assemble and is convenient for product production. The counterweight pipe is in a circular pipe structure, and when the counterweight pipe moves along with the turning plate switch, the circular arc surface can reduce the space required by the moving track of the counterweight pipe as much as possible, namely the counterweight pipe can be made into the outer diameter of a large circular pipe as much as possible in the same space. And because the counterweight pipe is in a circular tube shape, when the turning plate is in two states, the gravity center of the counterweight pipe is kept at the axis of the counterweight pipe, and the counterweight pipe is matched with the articulated arm and other structures, so that the gravity utilization efficiency of the counterweight pipe is maximized. The gravity utilization efficiency is specifically that, under the condition that the space utilization is realized by reducing the motion track of the counterweight structure as much as possible, one side of the counterweight structure is required to be arc-shaped, and if the counterweight structure with a special-shaped structure is formed by adding other side surfaces of the counterweight structure, when the turning plate is in an open state, the gravity center of the counterweight structure is closer to the side surface of the core main body, namely, the component force of the counterweight gravity on the moving direction of the turning plate is smaller, namely, the gravity utilization efficiency is low.

Furthermore, the floor drain main body is of a box-shaped structure with an open top, and the middle part of the bottom surface of the floor drain main body is provided with an extension pipe extending downwards. The assembly through hole is arranged in the middle of the bottom surface of the floor drain main body and extends along the extension pipe. The floor drain with the improved structure further comprises a cover body and a filter screen, wherein the cover body is covered on the open position of the top surface of the floor drain main body, and the filter screen is arranged on the opening position of the top surface of the assembling through hole.

Drawings

Figure 1 is the structure schematic diagram of the floor drain of the utility model.

Fig. 2 is a schematic view of the cross-sectional structure of the floor drain of the present invention along the direction of a-a in fig. 1.

Figure 3 is the utility model discloses a floor drain's decomposition structure schematic diagram.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Referring to fig. 1, 2 and 3, the floor drain with an improved structure comprises a cover body 1, a filter screen partition 2, a mounting ring 3, a floor drain core body and a floor drain main body 5, wherein the floor drain main body 5 is fixedly arranged at an application position of the floor drain, the floor drain main body 5 is provided with an assembly through hole 51 which is communicated end to end, and the floor drain core body is assembled in the assembly through hole 51. The floor drain main body 5 is of a box-shaped structure with an open top, and an extension pipe 52 extending downwards is attached to the middle of the bottom surface of the floor drain main body 5. The assembling through hole 51 is opened in the middle of the bottom surface of the floor drain main body 5 and extends along the extension pipe 52. The cover body 1 is covered on the open top of the floor drain main body 5, and the filter screen 2 is arranged on the open top of the assembly through hole 51. This lid 1 separates 2 with the filter screen and can be for the common grid apron cooperation grid net baffle isotructure in floor drain field, also can set up the whole filter screen that is the wave face like this embodiment and separate 2 cooperations and have the lid 1 structure of stabilizer blade. In the application process of the floor drain, water flows between the support legs of the cover body 1, flows through the filter screen partition 2 and then enters the floor drain core body through the middle through hole of the annular structure of the mounting ring 3.

With continued reference to fig. 1, 2 and 3, the hole wall of the assembling through hole 51 is provided with a ring of limiting protruding ribs 511, and the limiting protruding ribs 511 are annularly arranged. The top of the floor drain core body is provided with a circle of mounting convex edges 411, and the mounting convex edges 411 are annularly arranged on the circumferential side edge of the outer side of the floor drain core body. The mounting ring 3 is of an annular structure, the circumferential edge of the outer side of the mounting ring 3 is connected with the hole wall of the assembling through hole 51, the mounting ring 3 and the limiting convex rib 511 are respectively abutted against the top surface and the bottom surface of the mounting convex rib 411, and the mounting ring 3 and the limiting convex rib 511 are used for fixedly assembling the floor drain core. The section of the box-packed structure of the floor drain body 5 and the assembly through hole 51 can be in any geometrical shape. The assembling through hole 51, the mounting ring 3, the limiting rib 511 and the mounting rib 411 only need to be geometrically corresponding to each other, and the assembling can be realized. In the present embodiment, the box structure of the floor drain main body 5 is square, and the assembly through hole 51 is a through hole structure with a circular cross section. The mounting ring 3, the limiting convex rib 511 and the mounting convex rib 411 are matched and in a circular structure. As the sewer pipeline is generally a round pipe, the structure is round, so that the space can be maximally utilized.

With continued reference to fig. 1, 2 and 3, the mounting ring 3 is disposed adjacent to the top opening of the mounting through-hole 51. The circumferential side edge of the outer side of the mounting ring 3 is screwed with the wall of the fitting through hole 51. The connection structure between the circumferential side edge of the outer side of the mounting ring 3 and the hole wall of the assembling through hole 51 can also be in clamping connection, bonding connection and the like, the threaded structure is convenient to disassemble and assemble, and the bottom surface of the mounting ring 3 can have certain jacking stress on the top surface of the mounting convex edge 411 after assembly, so that the assembly of the floor drain core is more stable. A core body sealing gasket 412 is arranged between the installation convex rib 411 and the limiting convex rib 511 and/or between the circumferential side edge of the floor drain core body and the assembly through hole 51, the core body sealing gasket 412 is made of flexible material, and the core body sealing gasket 412 is used for sealing between the floor drain main body 5 and the floor drain core body. When the core body sealing gasket 412 is arranged between the peripheral side edge of the floor drain core body and the assembling through hole 51, the core body sealing gasket 412 can be arranged in the annular structure of the limiting convex rib 511 in a circular shape or in the hole wall of the assembling through hole 51. Specifically, in the present embodiment, the limiting rib 511 is disposed at the bottom opening of the assembling through hole 51, and the core gasket 412 is disposed between the mounting rib 411 and the limiting rib 511 in an annular sheet shape.

Referring to fig. 2 and 3, the mounting ring 3 is provided with a detachable portion, and the detachable portion is disposed in a manner that the cross section of the through hole in the middle of the mounting ring 3 is polygonal, and a protrusion or a recess is disposed on the top surface of the mounting ring 3 or on the wall of the through hole in the middle. The mounting ring 3 needs to be rotated when the mounting ring 3 is mounted and dismounted, so that the mounting ring 3 can be rotated conveniently by the mounting part, and the mounting ring 3 can be mounted and dismounted conveniently. In the present embodiment, the detachable portion is two protrusions 31 extending opposite each other and located in the annular structure of the mounting ring 3. The side surfaces of the two opposite sides of the two convex blocks 31 are respectively provided with a lifting lug mounting hole 311. The mounting ring 3 is further provided with a lifting lug which is in an omega-shaped structure, and the end parts of the two ends of the lifting lug are inserted into the two lifting lug mounting holes 311. Not shown in the drawing.

Referring to fig. 1, 2 and 3, the floor drain core body includes a core main body 41, a turning plate and a counterweight body, the core main body 41 is in a hollow tubular shape, the turning plate is hinged to the bottom of the core main body 41, the turning plate is used for sealing the bottom opening of the core main body 41, and the counterweight body is arranged on the turning plate. The mounting protrusions 411 are provided on the circumferential side edges of the top surface of the core main body 41. The bottom end of the core body 41 is provided with a body hinge seat 413. The turning plate is composed of a turning plate main body 421 and a hinge arm 422, the head end of the hinge arm 422 is connected with the bottom surface of the turning plate main body 421, the hinge arm 422 is hinged with the main body hinge seat 413, and the joint of the hinge arm 422 and the main body hinge seat 413 is arranged near the tail end of the hinge arm 422. The flap main body 421 is provided to close the bottom opening of the core main body 41. The flap body 421 is provided with a flap seal 4211, the flap seal 4211 is a flexible flap seal 4211, and the flap seal 4211 is used for sealing a connection portion between the flap body 421 and the core body 41 when the flap body is in a state of closing the bottom opening of the core body 41. When the flap main body 421 is in a state of closing the opening on the bottom surface of the core main body 41, the hinge arm 422 is located below the flap main body 421 and the head end of the hinge arm 422 is connected to the middle of the bottom surface of the flap main body 421. The flap seal 4211 is a flap seal 4211 made of silica gel. When the flap body 421 is in a state of closing the bottom opening of the core body 41, the flap seal 4211 is in a sleeve-shaped structure with a lower opening, and the flap seal 4211 covers the top surface of the flap body 421, the side surface of the flap body 421 and the side edge of the bottom surface of the flap body 421. The top surface of the flap main body 421 is provided with a sealing boss 4212, and the sealing boss 4212 extends towards the opening of the bottom surface of the core main body 41. The inner edge of the bottom opening of the core body 41 is provided with an annular gap for accommodating the sealing boss 4212.

Referring to fig. 1 and 3, the hinge arm 422 is provided with an arm connecting seat 4221, and the arm connecting seat 4221 is provided at the end of the rear end of the hinge arm 422. The weight body is assembled to the arm connecting seat 4221. When the flap is in a state of closing the bottom opening of the core body 41, the arm connecting seat 4221 is located below the plane of the flap body 421. The hinge arms 422 are provided in two, and the two hinge arms 422 are juxtaposed. The arm connecting holes 4222 of the through hole structure are formed in the middle of the arm connecting base 4221, and the two arm connecting holes 4222 located in the two articulated arms 422 extend along the same straight line. The main body hinge seat 413 has two hinge holes 4131, and the two hinge holes 4131 are through holes respectively formed at the bottom end of the core main body 41 and extending along the same straight line. Each hinge hole 4131 is provided with an assembling groove 4132 at the lower part thereof, the assembling grooves 4132 are arranged end to end in a penetrating manner, one end of each assembling groove 4132 extends to the hinge hole 4131, and the other end of each assembling groove 4132 extends downwards to be arranged in a penetrating manner. The hinged arms 422 are provided with a hinged shaft 4223 at the side deviating from each other, the hinged shaft 4223 is in a columnar protruding structure deviating from each other and extending, and the hinged shaft 4223 is rotatably assembled in the hinged hole 4131. The whole counterweight body is of a cylindrical structure with protruding shafts at two ends, the protruding shafts are arranged on end faces at two ends of the cylindrical structure, and the protruding shafts extend to the inside of the connecting hole 4222 and are used for assembling the counterweight body. The weight body can be integrally formed, such as a metal integrally formed weight body. The counterweight body may also be separately provided in two parts, specifically, for example, the counterweight body is composed of a connecting column 431 and a counterweight tube 432, the connecting column 431 has a cylindrical structure with two ends extending toward the insides of the two arm connecting holes 4222, the counterweight tube 432 has a circular tubular structure, the two ends of the connecting column 431 are inserted into the two arm connecting holes 4222 and assembled on the hinge arm 422, and the counterweight tube 432 is sleeved outside the connecting column 431.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims (10)

1. A floor drain with an improved structure comprises a floor drain main body and a floor drain core body, wherein the floor drain main body is provided with an assembly through hole which is communicated end to end, and the floor drain core body is assembled in the assembly through hole; the method is characterized in that: the hole wall of the assembling through hole is provided with a circle of limiting convex edges which are annularly arranged; the top of the floor drain core body is provided with a circle of mounting convex edges which are annularly arranged on the circumferential side edge of the outer side of the floor drain core body; the floor drain core body is characterized by further comprising a mounting ring, the mounting ring is of an annular structure, the circumferential side edge of the outer side of the mounting ring is connected with the wall of the assembling through hole, the mounting ring and the limiting convex edge are respectively abutted to the top surface and the bottom surface of the mounting convex edge, and the mounting ring and the limiting convex edge are used for fixedly assembling the floor drain core body.

2. The floor drain with improved structure as claimed in claim 1, wherein: the assembly through hole is of a through hole structure with a circular section; the mounting ring, the limiting convex edge and the mounting convex edge are of matched annular structures; the circumferential side edge of the outer side of the mounting ring is in threaded connection with the wall of the assembling through hole.

3. The floor drain with improved structure as claimed in claim 2, wherein: the floor drain is characterized in that a core body sealing gasket is arranged between the mounting convex edge and the limiting convex edge and/or between the circumferential side edge of the floor drain core body and the assembling through hole, the core body sealing gasket is made of flexible materials, and the core body sealing gasket is used for sealing between the floor drain main body and the floor drain core body.

4. The floor drain with improved structure as claimed in claim 2, wherein: the mounting ring is arranged close to the opening at the top of the assembling through hole; the mounting ring is additionally provided with a dismounting part, and the mounting part is arranged in a mode that the section of a through hole in the middle of the mounting ring is polygonal, and a convex or concave structure is arranged on the top surface of the mounting ring or the wall of the through hole in the middle of the mounting ring; the limiting convex edge is arranged at the bottom opening of the assembling through hole.

5. The floor drain with improved structure as claimed in claim 1, wherein: the floor drain core body comprises a core main body, a turning plate and a counterweight body, wherein the core main body is in a hollow tubular shape, the turning plate is hinged to the bottom of the core main body, the turning plate is used for sealing the bottom opening of the core main body, and the counterweight body is arranged on the turning plate; a main body hinge seat is arranged on the side edge of the bottom end of the core main body; the turning plate is composed of a turning plate main body and a hinged arm, the head end of the hinged arm is connected to the turning plate main body, the hinged arm is hinged to a main body hinge seat, the joint of the hinged arm and the main body hinge seat is arranged close to the tail end of the hinged arm, and the turning plate main body is used for sealing the bottom surface opening of the core main body.

6. A floor drain with improved structure according to claim 5, characterized in that: the bottom opening of the turning plate main body and/or the core main body is/are provided with a turning plate sealing gasket which is made of flexible materials, and the turning plate sealing gasket is used for sealing the connecting part between the turning plate main body and the core main body when the turning plate main body is in a state of closing the bottom opening of the core main body.

7. A floor drain with improved structure according to claim 6, characterized in that: when the turning plate main body is in a state of closing the opening on the bottom surface of the core main body, the hinged arm is positioned below the turning plate main body, and the head end of the hinged arm is connected to the middle of the bottom surface of the turning plate main body; the flap plate sealing gasket is made of silica gel; when the turning plate main body is in a state of closing the bottom surface opening of the core main body, the turning plate sealing gasket is in a sleeve-shaped structure with a lower opening, and the turning plate sealing gasket is arranged by covering the top surface of the turning plate main body, the side surface of the turning plate main body and the side edge of the bottom surface of the turning plate main body; should turn over board main part top surface and be equipped with sealed boss, sealed boss extends towards core main part bottom surface opening and sets up.

8. A floor drain with improved structure according to claim 5, characterized in that: the articulated arm is provided with an arm connecting seat which is arranged at the tail end of the articulated arm; the counterweight body is assembled on the arm connecting seat; when the turning plate is in a state of closing the opening on the bottom surface of the core main body, the arm connecting seat is positioned below the plane where the turning plate main body is positioned.

9. The floor drain with improved structure as claimed in claim 8, wherein: the two articulated arms are arranged in parallel; the middle part of the arm connecting seat is provided with arm connecting holes of a through hole structure, and the two arm connecting holes positioned on the two articulated arms extend along the same straight line; the counterweight body comprises spliced pole and counter weight pipe, and the spliced pole is both ends towards two the inside cylindric structure that extends of arm connecting hole, and the counter weight pipe is the tubular structure of circle, and the spliced pole both ends are inserted and are assembled in the articulated arm with locating two arm connecting holes, and the counter weight pipe box is located outside the spliced pole.

10. A floor drain with improved structure according to any of claims 1 to 9, characterized in that: the floor drain main body is of a box-shaped structure with an opening at the top, and the middle part of the bottom surface of the floor drain main body is attached with an extension pipe extending downwards; the assembling through hole is formed in the middle of the bottom surface of the floor drain main body and extends along the extension pipe; the floor drain is characterized by further comprising a cover body and a filter screen partition, wherein the cover body covers the open top of the floor drain main body, and the filter screen partition is arranged at the opening of the top of the assembling through hole.

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