CN218894758U

CN218894758U - Vacuum pump

Info

Publication number: CN218894758U
Application number: CN202320111491.1U
Authority: CN
Inventors: 郑思远; 刘璐; 张远
Original assignee: Changsha Laibao Hardware Technology Co ltd
Current assignee: Changsha Laibao Hardware Technology Co ltd
Priority date: 2023-01-19
Filing date: 2023-01-19
Publication date: 2023-04-21
Anticipated expiration: 2033-01-19

Abstract

The utility model relates to the technical field of vacuum pumps, in particular to a vacuum pump which comprises a pump body, an oil tank arranged at the side end of the pump body and a heating assembly, wherein the heating assembly is detachably connected to the inner side of the oil tank; the heating assembly comprises an installation box, the installation box and the oil tank can be mutually detached and fixed, the installation box extends to the inner side face of the oil tank and is at least provided with a heating element, and the inner side face of the installation box is also provided with a stirring assembly.

Description

Vacuum pump

Technical Field

The utility model relates to the technical field of vacuum pumps, in particular to a vacuum pump.

Background

Vacuum pumps refer to devices or apparatus that draw air from a container being evacuated using mechanical, physical, chemical, or physicochemical means to obtain a vacuum. Generally, vacuum pumps are devices that improve, create, and maintain a vacuum in an enclosed space by various methods.

The Chinese patent publication No. CN210118251U discloses an oil tank side-mounted rotary vane vacuum pump, and provides an oil tank side-mounted rotary vane vacuum pump with a heating function, which has the advantages of simple structure, safety and reliability, and can ensure the normal start of the vacuum pump under the low temperature condition, thereby solving the technical problems that the start of the vacuum pump in the prior art is greatly influenced by the environmental temperature, the vacuum pump cannot be started or is difficult to start under the low temperature condition, and the like.

However, those skilled in the art know that, in this solution, the heating pipe mode fixedly connected to the bottom of the oil tank is used alone, and when heating is performed specifically, the heating pipe can only be heated slowly upwards from the bottom of the oil tank to realize the complete heating operation of the whole oil tank, so that the whole heating process is longer, and the heating efficiency is low.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a vacuum pump.

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

a vacuum pump is designed, which comprises a pump body and an oil tank arranged at the side end of the pump body,

the heating assembly is detachably connected to the inner side of the oil tank;

the heating assembly comprises an installation box, the installation box can be mutually detached and fixed with the oil tank, the installation box extends to the inner side face of the oil tank and is at least provided with a heating element, the inner side face of the installation box is also provided with a stirring assembly, and the stirring assembly is used for accelerating the flow speed of oil inside the oil tank.

Further, the heating piece is U-shaped structure, and is provided with two sets of, two sets of the heating piece in the coincidence of mounting box upper center and ninety degrees setting apart from each other, wherein, the heating piece is the heating pipe.

Further, the stirring assembly comprises a stirring rod, a plurality of stirring blades are circumferentially distributed on the outer peripheral surface of the stirring rod, wherein a motor is fixedly installed in the installation box, and the shaft end of the motor is connected with the stirring rod.

Further, the square hole is formed in the shaft end of the motor, the end portion of the stirring rod is set to be a square rod, at least one spring pin assembly is arranged on the square rod section of the stirring rod, and a positioning hole which is clamped with the pin shaft end of the spring pin assembly is formed in the shaft end of the motor, so that the motor and the stirring rod can be detachably connected through the positioning hole and the spring pin assembly.

Further, a plurality of comb tooth grooves are regularly formed in the end face of the stirring rod of the stirring She Yuanli, and the bottoms of the comb tooth grooves do not extend to the bottoms of the stirring blades so as to form a plane portion below the stirring blades.

Further, a threaded hole is formed in the oil tank, and the mounting box is in threaded connection with the threaded hole.

Further, the inner side of the mounting box is also provided with a temperature sensor, a control unit is arranged in the mounting box, and the control unit is electrically connected with an external power supply and in signal connection with the temperature sensor.

The vacuum pump provided by the utility model has the beneficial effects that:

according to the utility model, the stirring assembly is added on the basis of the prior art and is used for stirring the oil while heating the oil, so that the oil can flow in the oil tank in an accelerating way, and the heating efficiency and the overall heating effect of the oil in the oil tank are improved;

secondly, considering the viscosity of oil, if the front stirring blade is adopted for stirring, the surface stress of the stirring blade is larger during starting, so that the situation that the stirring blade is damaged is very easy to occur, and therefore, the end face of the stirring blade far away from the stirring rod is regularly provided with a plurality of comb tooth grooves, so that the stress stability and the service life of the stirring blade during starting are ensured.

Drawings

FIG. 1 is a schematic diagram of a vacuum pump according to the present utility model;

FIG. 2 is a schematic diagram of a heating element of a vacuum pump according to the present utility model;

fig. 3 is an enlarged schematic diagram of a region a of a vacuum pump according to the present utility model.

In the figure: 1. a pump body; 2. an oil tank; 21. a threaded hole; 3. a heating assembly; 31. a mounting box; 32. a heating member; 33. a stirring assembly; 331. a stirring rod; 332. stirring the leaves; 333. a motor; 334. a spring pin assembly; 335. comb tooth grooves; 34. a temperature sensor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, a vacuum pump comprises a pump body 1, an oil tank 2 arranged at the side end of the pump body 1, and a heating component 3, wherein the heating component 3 is detachably connected to the inner side of the oil tank 2;

the heating assembly 3 comprises a mounting box 31, the mounting box 31 and the oil tank 2 can be mutually detached and fixed, at least one heating element 32 is arranged on the inner side surface of the mounting box 31 extending to the oil tank 2, a stirring assembly 33 is also arranged on the inner side surface of the mounting box 31, and the stirring assembly 33 is used for accelerating the flow speed of oil on the inner side of the oil tank 2;

specifically, since the oil in the oil tank 2 is viscous under the condition of the bottom of the outside temperature, in the present utility model, by adding a stirring assembly 33 on the basis of the prior art, the stirring assembly is used for stirring the oil while heating the oil, so that the oil can flow in the oil tank 2 in an accelerating manner, thereby accelerating the heating efficiency and the overall heating effect of the oil in the oil tank 2.

Furthermore, in the present utility model, the heating elements 32 are in a U-shaped structure and are provided with two groups, the two groups of heating elements 32 are overlapped at the center on the installation box 31 and are arranged at ninety degrees, wherein the heating elements 32 are heating pipes, and the heating distance of the oil can be increased by adopting a mode that the two groups of heating pipes are sleeved outside the stirring assembly 33, and the heating interval can be passed when the oil enters the stirring assembly 33 and the oil is separated from the stirring assembly 33, so that the heating efficiency is ensured.

Still further, the stirring assembly 33 of the present utility model comprises a stirring rod 331, wherein a plurality of stirring blades 332 are circumferentially distributed on the outer peripheral surface of the stirring rod 331, a motor 333 is fixedly installed in the installation box 31, and the shaft end of the motor 333 is connected with the stirring rod 331;

specifically, considering the viscosity of oil, if the front stirring blade 332 is adopted for stirring, the surface stress of the stirring blade 332 is larger during starting, so that the situation that the stirring blade 332 is damaged is very easy to occur, therefore, in the utility model, the end face of the stirring blade 332 far away from the stirring rod 331 is regularly provided with a plurality of comb tooth grooves 335, the bottom of the comb tooth grooves 335 does not extend to the bottom of the stirring blade 332, so that a plane part is formed below the stirring blade 332, and the formed comb tooth grooves 335 can cut and break the viscous oil during starting, so that the stress stability of the stirring blade 332 during starting is ensured, and the normal operation of stirring work is ensured by stirring the oil through the plane part.

In other words, in order to facilitate disassembly and maintenance of the stirring rod 331, in the utility model, the shaft end of the motor 333 is provided with a square hole, the end of the stirring rod 331 is provided with a square rod, wherein the square rod section of the stirring rod 331 is provided with at least one spring pin assembly 334, the shaft end of the motor 333 is provided with a positioning hole which is clamped with the pin shaft end of the spring pin assembly 334, so that the motor 333 and the stirring rod 331 can be detachably connected through the positioning hole and the spring pin assembly 334, and particularly, when the stirring rod 331 needs to be disassembled, a user can remove the whole stirring rod 331 and clean and maintain only by pressing the spring pin assembly 334 on the square rod section to separate from the shaft end of the motor 333.

More specifically, the oil tank 2 is provided with a threaded hole 21, in this embodiment, the mounting box 31 is in threaded connection with the threaded hole 21, and specifically, a retaining ring may be further disposed in the threaded hole 21, where the retaining ring is used to limit movement of the mounting box 31, and a sealing ring may be further disposed on the retaining ring, so as to ensure the installation tightness of the mounting box 31.

In the present utility model, the inner side surface of the mounting box 31 is further provided with a temperature sensor 34, the mounting box 31 is provided with a control unit, the control unit is electrically connected with an external power supply and is in signal connection with the temperature sensor 34, and a person skilled in the art knows that the motor 333 and the heating element 32 are also connected with the control unit, and when the control unit specifically operates, the motor 333 and the heating element 32 are controlled to work so as to realize the heating treatment on the inner side of the oil tank 2, and after the temperature rises to a preset value, the temperature sensor 34 feeds back a temperature signal so as to stop the control unit to control the motor 333 and the heating element 32, thereby completing the heating work.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a vacuum pump, includes pump body (1) and arranges oil tank (2) of pump body (1) side, its characterized in that:

the heating device further comprises a heating component (3), wherein the heating component (3) is detachably connected to the inner side of the oil tank (2);

wherein, heating element (3) include mounting box (31), mounting box (31) can with oil tank (2) dismantlement each other is fixed, mounting box (31) extend in be provided with one on the medial surface of oil tank (2) at least heating element (32), still be provided with stirring subassembly (33) on the medial surface of mounting box (31), stirring subassembly (33) are used for accelerating the flow velocity of oil in oil tank (2).

2. A vacuum pump according to claim 1, wherein: the heating piece (32) is of a U-shaped structure and is provided with two groups, the centers of the two groups of heating pieces (32) on the mounting box (31) are overlapped and are arranged at ninety degrees, and the heating piece (32) is a heating pipe.

3. A vacuum pump according to claim 1, wherein: the stirring assembly (33) comprises a stirring rod (331), a plurality of stirring blades (332) are circumferentially distributed on the outer circumferential surface of the stirring rod (331), a motor (333) is fixedly installed in the installation box (31), and the shaft end of the motor (333) is connected with the stirring rod (331).

4. A vacuum pump according to claim 3, wherein: the end of the stirring rod (331) is set to be a square rod, wherein at least one spring pin assembly (334) is arranged on the square rod section of the stirring rod (331), and a positioning hole which is clamped with the pin shaft end of the spring pin assembly (334) is arranged on the shaft end of the motor (333), so that the motor (333) and the stirring rod (331) can be detachably connected through the positioning hole and the spring pin assembly (334).

5. A vacuum pump according to claim 3, wherein: a plurality of comb tooth grooves (335) are regularly formed in the end face, far away from the stirring rod (331), of the stirring blade (332), and the bottoms of the comb tooth grooves (335) do not extend to the bottoms of the stirring blade (332) so as to form a plane portion below the stirring blade (332).

6. A vacuum pump according to claim 1, wherein: the oil tank (2) is provided with a threaded hole (21), and the installation box (31) is in threaded connection with the threaded hole (21).

7. A vacuum pump according to claim 1, wherein: the inner side surface of the installation box (31) is also provided with a temperature sensor (34), and a control unit is arranged in the installation box (31), and is electrically connected with an external power supply and in signal connection with the temperature sensor (34).