Electric push rod for closestool

Abstract

The utility model belongs to the technical field of electric lifting closestools, and particularly relates to an electric push rod for a closestool, which comprises a fixed seat, a motor arranged in the fixed seat, a main shaft arranged in the motor, two ends of the main shaft respectively extending out of the motor and connected with worms, worm gears arranged on side surfaces of the worms and rotatably arranged in the fixed seat. The worm gear is connected with a lead screw, a nut is installed on the periphery of the lead screw and connected with a push rod used for being connected with a toilet seat, a rotation limiting vertical pipe is installed on the periphery of the nut, the lower end of the rotation limiting vertical pipe is connected with the fixing base, and a rotation limiting part used for abutting against the inner side wall of the rotation limiting vertical pipe is formed on one side of the nut. The push rods at the two ends are driven by the single motor to move up and down at the same time, so that the toilet seat is lifted, people can get up after going to the toilet conveniently, and the lifting mechanism is simple in structure, stable and reliable in mechanical structure, not prone to damage, easy to maintain and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of electric lifting toilets, in particular to an electric push rod used for toilets. Background Art

[0002] The existing toilets, whether direct flush or siphon, do not have the function of automatic lifting. People need to stand up after using them. If there are elderly people or patients with limited mobility at home, some handrails are generally installed on the wall to facilitate standing up after using the toilet. However, this still requires arm strength, which is very inconvenient for the elderly or patients. For this reason, toilet chairs that can automatically lift and lower have also appeared on the market.

[0003] For example, a Chinese utility model, publication number CN206482520U, discloses an electric lifting toilet cover, including an inner seat ring installed on a toilet base, an outer seat ring sleeved on the inner seat ring, and a cover plate installed on the outer seat ring, two electric push rods are respectively provided at the bottom of the two inner sides of the inner seat ring, the piston rod in each electric push rod passes through the top of the inner seat ring and is connected to the bottom of the seat ring of the outer seat ring, the motors in the four electric push rods are connected in parallel through wires and are connected to an electrical controller.

[0004] The structure is complex, and each electric push rod needs to be controlled by an electrical controller to achieve synchronous operation. However, the debugging and maintenance of the electrical controller is complex, so the structure needs to be further improved. Utility Model Content

[0005] The utility model aims to provide an electric push rod for a toilet, which can drive two push rods to move at the same time by a motor, thereby solving the problem of complicated existing structures.

[0006] The purpose of the utility model is achieved as follows: an electric push rod for a toilet, comprising a fixed seat, a motor is arranged in the fixed seat, a main shaft is arranged in the motor, two ends of the main shaft respectively extend out of the motor and are connected to a worm, a worm wheel is arranged on the side of the worm, the worm wheel is rotatably arranged in the fixed seat, the worm wheel is connected to a lead screw, a nut is installed on the outer periphery of the lead screw, a push rod for connecting to a toilet seat ring is connected to the nut, a limited rotation vertical pipe is installed on the outer periphery of the nut, the lower end of the limited rotation vertical pipe is connected to the fixed seat, and a limited rotation portion is formed on one side of the nut for abutting against the inner side wall of the limited rotation vertical pipe to limit the rotation of the nut.

[0007] Preferably, a coupling is connected between the main shaft and the worm.

[0008] Preferably, a first rotating bearing is provided at the left and right ends of the worm respectively, and a second rotating bearing is provided at the upper and lower ends of the worm wheel respectively.

[0009] Preferably, a limited rotation plane is formed on one side of the limited rotation standpipe, and a limited rotation block for the limited rotation portion to abut against is provided on the inner side wall of the limited rotation plane.

[0010] Preferably, the fixing seat comprises an upper seat and a lower seat, a first mounting column is formed in the upper seat, and a second mounting column is formed in the lower seat.

[0011] Preferably, mounting parts are respectively formed at both ends of the upper seat, mounting grooves for inserting the rotation-limiting vertical pipe are formed in the mounting parts, and mounting holes for extending the screw rod are formed in the mounting parts.

[0012] Preferably, a limiting cover is installed on the upper end of the rotation limiting riser.

[0013] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0014] The utility model uses a single motor to simultaneously drive the push rods at both ends to move up and down, so as to lift the toilet seat, making it easier to use the toilet and get up after using the toilet. During actual operation, the motor drives the screw nut mechanism to move through the worm gear mechanism on both sides of the main shaft, thereby converting the rotational motion of the component into the linear motion of the push rod. The structure is simple, the mechanical structure is stable and reliable, it is not easy to be damaged, the maintenance is simple, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 Schematic diagram of the exploded structure of the parts of the utility model Figure 1 .

[0017] Figure 3 Schematic diagram of the exploded structure of the parts of the utility model Figure 2 .

[0018] Figure 4 It is a schematic diagram of the top view of the screw rod, nut and rotation-limiting riser.

[0019] Figure 5 It is a schematic diagram of the top structure of the utility model.

[0020] Figure 6 for Figure 5 Schematic diagram of the structural cross-section at AA in the middle.

[0021] Figure 7 for Figure 5 Schematic diagram of the structural cross-section at BB in the middle.

[0022] Figure markings: 1-fixed seat; 2-motor; 3-spindle; 4-worm; 5-worm wheel; 6-screw; 7-nut; 8-push rod; 9-rotation limiting vertical pipe; 10-rotation limiting part; 11-coupling; 12-rotation bearing 1; 13-rotation bearing 2; 14-rotation limiting plane; 15-rotation limiting block; 16-upper seat; 17-lower seat; 18-mounting column 1; 19-mounting column 2; 20-mounting part; 21-mounting groove; 22-mounting hole; 23-limiting cover. DETAILED DESCRIPTION

[0023] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-7 As shown, an electric push rod for a toilet comprises a fixed seat 1, a motor 2 is arranged in the fixed seat 1, a main shaft 3 is arranged in the motor 2, two ends of the main shaft 3 respectively extend out of the motor 2 and are connected with a worm 4, a worm wheel 5 is arranged on the side of the worm 4, the worm wheel 5 is rotatably arranged in the fixed seat 1, the worm wheel 5 is connected to a screw 6, a nut 7 is installed on the outer periphery of the screw 6, a push rod 8 for connecting with a toilet seat ring is connected to the nut 7, a limited rotation standpipe 9 is installed on the outer periphery of the nut 7, the lower end of the limited rotation standpipe 9 is connected to the fixed seat 1, and a limited rotation portion 10 for abutting against the inner side wall of the limited rotation standpipe 9 to limit the rotation of the nut 7 is formed on one side of the nut 7.

[0025] The utility model drives the push rods 8 at both ends to move up and down by a single motor at the same time, so as to lift the toilet seat, so as to facilitate going to the toilet and getting up after going to the toilet. During the actual operation of the motor, the worm gear mechanism on both sides of the main shaft 3 drives the screw nut mechanism to move, thereby converting the rotational motion of the component into the linear motion of the push rod 8. The structure is simple, the mechanical structure is stable and reliable, not easy to damage, simple to maintain, and low in cost.

[0026] A coupling 11 is connected between the main shaft 3 and the worm 4 to achieve power transmission, and the connection structure is simple and easy to assemble and disassemble.

[0027] The left and right ends of the worm 4 are respectively provided with a rotating bearing 12, and the upper and lower ends of the worm wheel 5 are respectively provided with a rotating bearing 2 13, so as to achieve stable movement of the worm 4 and stable power transmission, so that the push rod 8 can achieve stable movement.

[0028] A limited rotation plane 14 is formed on one side of the limited rotation vertical pipe 9, and a limited rotation block 15 is provided on the inner side wall of the limited rotation plane 14 for the limited rotation part 10 to abut against, thereby limiting the rotation of the nut 7 and making it maintain linear motion on the outer periphery of the screw.

[0029] The fixing seat 1 includes an upper seat 16 and a lower seat 17. A mounting column 18 is formed in the upper seat 16, and a mounting column 2 19 is formed in the lower seat 17. During the actual installation process, the fasteners are screwed into the mounting column 18 and the mounting column 2 19 to achieve the installation between the upper seat 16 and the lower seat 17.

[0030] The upper seat 16 has mounting portions 20 formed at both ends thereof. The mounting portions 20 have mounting grooves 21 formed therein for the rotation-limiting vertical pipe 9 to be inserted therein. The mounting portions 20 have mounting holes 22 formed therein for the screw rod 6 to extend therethrough.

[0031] A limiting cover 23 is installed at the upper end of the rotation limiting standpipe 9 .

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An electric push rod for a toilet, characterized in that: The utility model comprises a fixing seat (1), wherein a motor (2) is arranged in the fixing seat (1), a main shaft (3) is arranged in the motor (2), two ends of the main shaft (3) respectively extend out of the motor (2) and are connected to a worm (4), a worm wheel (5) is arranged on the side of the worm (4), the worm wheel (5) is rotatably arranged in the fixing seat (1), the worm wheel (5) is connected to a screw rod (6), a nut (7) is arranged on the outer periphery of the screw rod (6), a push rod (8) for connecting with a toilet seat ring is connected to the nut (7), a limited rotation vertical tube (9) is arranged on the outer periphery of the nut (7), the lower end of the limited rotation vertical tube (9) is connected to the fixing seat (1), and a limited rotation portion (10) for abutting against the inner side wall of the limited rotation vertical tube (9) is formed on one side of the nut (7) to limit the rotation of the nut (7).

2. The electric push rod for toilet according to claim 1, characterized in that: A coupling (11) is connected between the main shaft (3) and the worm (4).

3. The electric push rod for toilet according to claim 1, characterized in that: The left and right ends of the worm (4) are respectively provided with a first rotating bearing (12), and the upper and lower ends of the worm wheel (5) are respectively provided with a second rotating bearing (13).

4. The electric push rod for toilet according to claim 1, characterized in that: A limited rotation plane (14) is formed on one side of the limited rotation standpipe (9), and a limited rotation block (15) is provided on the inner side wall of the limited rotation plane (14) for the limited rotation part (10) to abut against.

5. The electric push rod for toilet according to claim 1, characterized in that: The fixing seat (1) comprises an upper seat (16) and a lower seat (17); a first mounting column (18) is formed in the upper seat (16), and a second mounting column (19) is formed in the lower seat (17).

6. The electric push rod for toilet according to claim 5, characterized in that: The upper seat (16) is formed with mounting parts (20) at both ends, and a mounting groove (21) is formed in the mounting part (20) for inserting the rotation-limiting vertical pipe (9). The mounting part (20) is provided with a mounting hole (22) for the screw rod (6) to extend out.

7. The electric push rod for toilet according to claim 1, characterized in that: A limiting cover (23) is installed at the upper end of the rotation limiting vertical pipe (9).

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