Roots pump provided with filter

Abstract

The utility model relates to the technical field of roots pumps, and discloses a roots pump provided with a filter, which comprises a roots pump body, the top of the roots pump body is fixedly connected with an air inlet body, the top of the air inlet body is provided with a filtering mechanism, the front side of the filtering mechanism is provided with a limiting mechanism, and the limiting mechanism is fixedly connected with the roots pump body. The filtering mechanism comprises a filtering assembly and a cleaning assembly, the filtering assembly is arranged at the top of the air inlet body, and the cleaning assembly is arranged at the top of the filtering assembly. Under the action of the protective shell and the filter body, air entering the roots pump body can be filtered, so that the air enters the protective shell through the auxiliary air inlet, when the auxiliary air inlet is used for a long time, dust attached to the auxiliary air inlet can be cleaned under the action of the rotating rod and the first cleaning brush, and the service life of the roots pump is prolonged. The air inlet effect is improved, and meanwhile dust can be prevented from entering the protective shell.

Description

Technical Field

[0001] The utility model relates to the technical field of Roots pumps, in particular to a Roots pump equipped with a filter. Background Art

[0002] A Roots pump is a variable-displacement vacuum pump equipped with two synchronously rotating, lobe-shaped rotors in opposite directions. A small gap exists between the rotors and between the rotors and the inner wall of the pump casing, preventing them from contacting each other. Roots pumps are currently widely used in the petroleum, chemical, metallurgical, textile, and plastics industries. However, the environments in which Roots pumps are used vary greatly across different industries. Current Roots pumps lack a filter at their air inlet, drawing in ambient air directly. This can easily attract impurities such as dust and particles, affecting their proper operation.

[0003] According to the description in the Roots pump equipped with a filter published on the patent website (authorization announcement number: CN217873261U), the Roots pump equipped with a filter includes "a filter, an air inlet, an air outlet", etc. to perform filtering work.

[0004] In view of the above description, the applicant believes that the following problems exist:

[0005] The Roots pump equipped with a filter utilizes a filter, an air inlet, an air outlet, etc. to perform filtering work. Although this Roots pump can achieve filtering, when used for a long time, a large amount of dust adheres to the auxiliary air inlet, which will cause blockage. This Roots pump cannot be cleaned in time and requires manual cleaning by staff, which affects the filtering effect and air intake efficiency. Therefore, this Roots pump needs to be improved. Utility Model Content

[0006] The purpose of the utility model is to provide a Roots pump equipped with a filter to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: a Roots pump equipped with a filter, comprising a Roots pump body, an air inlet body fixedly connected to the top of the Roots pump body, a filtering mechanism provided on the top of the air inlet body, and a limiting mechanism provided on the front side of the filtering mechanism;

[0008] The filtering mechanism includes a filtering assembly and a cleaning assembly, wherein the filtering assembly is arranged on the top of the air inlet body, and the cleaning assembly is arranged on the top of the filtering assembly;

[0009] The filter assembly includes a sealing disc, which is slidably connected to the inside of the air inlet body, a protective shell fixedly connected to the top of the sealing disc, the filter body slidably connected to the protective shell, a sealing cover slidably connected to the top of the protective shell, a fixing frame fixedly connected to the rear side of the protective shell, a first servo motor fixedly connected to the right side of the fixing frame, a bidirectional threaded rod fixedly connected to the left side of the first servo motor, a movable frame threadedly connected to the periphery of the bidirectional threaded rod, a connecting shaft fixedly connected to the right side of the movable frame, a splint fixedly connected to the inside of the connecting shaft, and the splint slidably connected to the inside of the sealing disc, an auxiliary air inlet fixedly connected to the left side of the protective shell, a second servo motor fixedly connected to the top of the auxiliary air inlet, a rotating rod fixedly connected to the left side of the second servo motor, a first cleaning brush fixedly connected to the left side of the rotating rod, a limiting rod inserted into the sealing cover, a pull ring fixedly connected to the front side of the limiting rod, a first spring sleeved on the periphery of the limiting rod, the front side of the first spring fixedly connected to the rear side of the pull ring, and the rear side of the first spring fixedly connected to the front side of the protective shell.

[0010] Preferably, the left side of the bidirectional threaded rod is rotatably connected to the inner side of the fixed frame, the front side of the movable frame is slidably connected to the inner side of the fixed frame, the splint passes through the interior of the air inlet body, and the air inlet body and the sealing disk are respectively provided with fixing grooves, and the two fixing grooves correspond to each other, and the splint is slidably connected to the fixing groove, so that the sealing disk can be fixed under the action of the splint.

[0011] Preferably, the limiting rod passes through the inside of the protective shell, and limiting grooves are respectively provided inside the protective shell and the sealing cover, and the two limiting grooves correspond to each other. The limiting rod is inserted into the limiting groove, and the right side of the first cleaning brush contacts the left side of the auxiliary air inlet, so that the sealing cover can be fixed under the action of the limiting rod.

[0012] Preferably, the cleaning assembly includes an electric telescopic rod, which is fixedly connected to the top of the sealing cover, and the bottom of the electric telescopic rod is fixedly connected to a connecting frame, which is slidably connected to the periphery of the filter body, and the inside of the connecting frame is fixedly connected to a second cleaning brush.

[0013] Preferably, the inner side of the second cleaning brush contacts the periphery of the filter body, and the second cleaning brush is made of a soft material, so that the periphery of the filter body can be cleaned by the second cleaning brush.

[0014] Preferably, the limiting mechanism includes a fixing rod, which is fixedly connected to the front side of the protective shell, a rectangular plate is slidably connected to the periphery of the fixing rod, the rear side of the rectangular plate is fixedly connected to the plug rod, the plug rod is inserted into the inside of the filter body, a second spring is sleeved on the periphery of the plug rod, the rear side of the second spring is fixedly connected to the front side of the protective shell, and the front side of the second spring is fixedly connected to the rear side of the rectangular plate.

[0015] Preferably, the insertion rod passes through the interior of the protective shell, and slots are respectively provided in the filter body and the interior of the protective shell, and the two slots correspond to each other. The insertion rod is inserted into the slot, so as to ensure the stability of the filter body under the action of the insertion rod.

[0016] Compared with the prior art, the present invention provides a Roots pump equipped with a filter, which has the following beneficial effects:

[0017] 1. The Roots pump equipped with a filter has a filtering mechanism that is set up. When the Roots pump body is working, the air entering the Roots pump body can be filtered under the action of the protective shell and the filter body, so that the air enters the protective shell through the auxiliary air inlet. When the auxiliary air inlet is used for a long time, the dust attached to the auxiliary air inlet can be cleaned under the action of the rotating rod and the first cleaning brush, which not only improves the air intake effect, but also prevents dust from entering the protective shell, thereby further playing a filtering role. At the same time, under the action of the two-way threaded rod, the movable frame, the connecting shaft and the splint, when the sealing disk is slidably connected to the inside of the air inlet body, the stability of the sealing disk and the protective shell can be guaranteed, and it is convenient to install and disassemble, which is convenient for subsequent maintenance and overhaul of the Roots pump body and improves applicability. At the same time, under the action of the connecting frame and the second cleaning brush, the dust attached to the periphery of the filter body can be cleaned, thereby improving the filtering effect.

[0018] 2. The Roots pump equipped with a filter has a limiting mechanism. When the filter body is in the protective shell and filters the air entering the Roots pump body, the plug rod, the rectangular plate and the second spring can limit the filter body, thereby ensuring the stability of the filter body and facilitating the installation and disassembly of the filter body, thereby improving the efficiency of replacement and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0020] Figure 1This is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 Schematic diagram of the filtering mechanism structure;

[0022] Figure 3 Schematic diagram of the filter assembly structure;

[0023] Figure 4 This is a schematic diagram of the rear structure of the protective shell;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the protective shell;

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the sealing cover;

[0026] Figure 7 To clean up the schematic diagram of the component structure;

[0027] Figure 8 It is a schematic diagram of the limiting mechanism structure.

[0028] In the figure: 1. Roots pump body; 2. air inlet body; 3. filter mechanism; 4. limit mechanism; 31. filter assembly; 32. cleaning assembly; 311. sealing disk; 312. protective shell; 313. fixed frame; 314. filter body; 315. sealing cover; 316. auxiliary air inlet; 317. two-way threaded rod; 318. movable frame; 319. connecting shaft; 3191. first servo motor; 3192. splint; 3193. second servo motor; 3194. rotating rod; 3195. first cleaning brush; 3196. limit rod; 3197. first spring; 3198. pull ring; 321. electric telescopic rod; 322. connecting frame; 323. second cleaning brush; 41. fixed rod; 42. rectangular plate; 43. second spring; 44. plug rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] The utility model provides the following technical solutions:

[0032] Example 1

[0033] See also Figure 1-8 The utility model provides a technical solution: a Roots pump equipped with a filter, comprising a Roots pump body 1, an air inlet body 2 fixedly connected to the top of the Roots pump body 1, a filter mechanism 3 provided on the top of the air inlet body 2, a limit mechanism 4 provided on the front side of the filter mechanism 3, the filter mechanism 3 comprising a filter assembly 31 and a cleaning assembly 32, the filter assembly 31 being provided on the top of the air inlet body 2, and the cleaning assembly 32 being provided on the top of the filter assembly 31;

[0034] The filter assembly 31 includes a sealing disk 311, which is slidably connected to the inside of the air inlet body 2. A protective shell 312 is fixedly connected to the top of the sealing disk 311. The filter body 314 is slidably connected to the protective shell 312. A sealing cover 315 is slidably connected to the top of the protective shell 312. A fixing frame 313 is fixedly connected to the rear side of the protective shell 312. A first servo motor 3191 is fixedly connected to the right side of the fixing frame 313. A bidirectional threaded rod 317 is fixedly connected to the left side of the first servo motor 3191. The outer periphery of the bidirectional threaded rod 317 is threadedly connected to a movable frame 318. A connecting shaft 319 is fixedly connected to the right side of the movable frame 318. A clamping plate 3192 is fixedly connected to the inner side of the connecting shaft 319. The splint 3192 is slidably connected to the inside of the sealing disk 311, and the auxiliary air inlet 316 is fixedly connected to the left side of the protective shell 312, and the top of the auxiliary air inlet 316 is fixedly connected to the second servo motor 3193, and the left side of the second servo motor 3193 is fixedly connected to the rotating rod 3194, and the left side of the rotating rod 3194 is fixedly connected to the first cleaning brush 3195, and the sealing cover 315 is internally inserted with a limiting rod 3196, and the front side of the limiting rod 3196 is fixedly connected to the pull ring 3198, and the outer periphery of the limiting rod 3196 is sleeved with a first spring 3197, the front side of the first spring 3197 is fixedly connected to the rear side of the pull ring 3198, and the rear side of the first spring 3197 is fixedly connected to the front side of the protective shell 312.

[0035] The left side of the bidirectional threaded rod 317 is rotatably connected to the inner side of the fixed frame 313, and the front side of the movable frame 318 is slidably connected to the inner side of the fixed frame 313. The splint 3192 runs through the interior of the air inlet body 2. The air inlet body 2 and the sealing plate 311 are respectively provided with fixing grooves, and the two fixing grooves correspond to each other. The splint 3192 is slidably connected in the fixing groove, so that the sealing plate 311 can be fixed under the action of the splint 3192. The limiting rod 3196 runs through the interior of the protective shell 312. The protective shell 312 and the sealing cover 315 are respectively provided with limiting grooves, and the two limiting grooves correspond to each other. The limiting rod 3196 is inserted into the limiting groove. The right side of the first cleaning brush 3195 is in contact with the left side of the auxiliary air inlet 316, so that the sealing cover 315 can be fixed under the action of the limiting rod 3196.

[0036] See also Figure 1-8 The present utility model provides a technical solution: the cleaning assembly 32 includes an electric telescopic rod 321, the electric telescopic rod 321 is fixedly connected to the top of the sealing cover 315, the bottom of the electric telescopic rod 321 is fixedly connected to a connecting frame 322, the connecting frame 322 is slidably connected to the periphery of the filter body 314, and a second cleaning brush 323 is fixedly connected to the inner side of the connecting frame 322. The inner side of the second cleaning brush 323 contacts the periphery of the filter body 314, and the second cleaning brush 323 is made of soft material, so that the periphery of the filter body 314 can be cleaned under the action of the second cleaning brush 323.

[0037] Example 2

[0038] See also Figure 1-8 , and on the basis of Example 1, the limiting mechanism 4 is further obtained to include a fixing rod 41, the fixing rod 41 is fixedly connected to the front side of the protective shell 312, the outer periphery of the fixing rod 41 is slidably connected to a rectangular plate 42, the rear side of the rectangular plate 42 is fixedly connected to an insertion rod 44, the insertion rod 44 is inserted into the interior of the filter body 314, the outer periphery of the insertion rod 44 is sleeved with a second spring 43, the rear side of the second spring 43 is fixedly connected to the front side of the protective shell 312, the front side of the second spring 43 is fixedly connected to the rear side of the rectangular plate 42, the insertion rod 44 runs through the interior of the protective shell 312, and slots are respectively provided inside the filter body 314 and the protective shell 312, and the two slots correspond to each other, and the insertion rod 44 is inserted into the slot, so as to ensure the stability of the filter body 314 under the action of the insertion rod 44.

[0039] In actual operation, when this device is used, when the Roots pump body 1 is used, the sealing disk 311 is first slidably connected to the inside of the air inlet body 2, so that the first servo motor 3191 drives the movable frame 318 and the connecting shaft 319 connected by the outer thread of the bidirectional threaded rod 317 to move, so that the connecting shaft 319 drives the splint 3192 to move, and the splint 3192 is moved to the fixed groove inside the sealing disk 311, so that the sealing disk 311 and the protective shell 312 are in a stable state. When the Roots pump body 1 is inhaling, the outside air will enter the protective shell 312 through the auxiliary air inlet 316, and perform filtering work under the action of the filter body 314. When the auxiliary air inlet 316 needs to be cleaned after being used for a long time, the first cleaning brush 3195 fixedly connected to the left side of the rotating rod 3194 is driven by the second servo motor 3193 to rotate, and the auxiliary air inlet 316 can be cleaned. The filter body 314 can be cleaned by the second cleaning brush 323 under the action of the electric telescopic rod 321 to clean the dust attached to the left side of the air inlet 316, thereby improving the air intake effect.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A Roots pump equipped with a filter, comprising a Roots pump body (1), characterized in that: The top of the Roots pump body (1) is fixedly connected to an air inlet body (2), a filter mechanism (3) is provided on the top of the air inlet body (2), and a limiting mechanism (4) is provided on the front side of the filter mechanism (3); The filtering mechanism (3) comprises a filtering assembly (31) and a cleaning assembly (32), wherein the filtering assembly (31) is arranged on the top of the air inlet body (2), and the cleaning assembly (32) is arranged on the top of the filtering assembly (31); The filter assembly (31) comprises a sealing disc (311), the sealing disc (311) is slidably connected to the inside of the air inlet body (2), the top of the sealing disc (311) is fixedly connected to a protective shell (312), the inside of the protective shell (312) is slidably connected to the filter body (314), the top of the protective shell (312) is slidably connected to a sealing cover (315), the rear side of the protective shell (312) is fixedly connected to a fixing frame (313), the right side of the fixing frame (313) is fixedly connected to a first servo motor (3191), the left side of the first servo motor (3191) is fixedly connected to a bidirectional threaded rod (317), the outer periphery of the bidirectional threaded rod (317) is threadedly connected to a moving frame (318), the right side of the moving frame (318) is fixedly connected to a connecting shaft (319), the inner side of the connecting shaft (319) is fixedly connected to a clamping plate (3192), and the clamping plate (3192) is slidably connected to the inside of the sealing disc (311); The left side of the protective shell (312) is fixedly connected to an auxiliary air inlet (316), the top of the auxiliary air inlet (316) is fixedly connected to a second servo motor (3193), the left side of the second servo motor (3193) is fixedly connected to a rotating rod (3194), the left side of the rotating rod (3194) is fixedly connected to a first cleaning brush (3195), the sealing cover (315) is internally inserted with a limiting rod (3196), the front side of the limiting rod (3196) is fixedly connected to a pull ring (3198), the outer periphery of the limiting rod (3196) is sleeved with a first spring (3197), the front side of the first spring (3197) is fixedly connected to the rear side of the pull ring (3198), and the rear side of the first spring (3197) is fixedly connected to the front side of the protective shell (312).

2. A Roots pump equipped with a filter according to claim 1, characterized in that: The left side of the bidirectional threaded rod (317) is rotatably connected to the inner side of the fixed frame (313), and the front side of the movable frame (318) is slidably connected to the inner side of the fixed frame (313). The clamping plate (3192) passes through the interior of the air inlet body (2). The interior of the air inlet body (2) and the sealing disk (311) are respectively provided with fixing grooves, and the two fixing grooves correspond to each other. The clamping plate (3192) is slidably connected in the fixing grooves.

3. The Roots pump equipped with a filter according to claim 1, characterized in that: The limiting rod (3196) passes through the interior of the protective shell (312), and limiting grooves are respectively provided inside the protective shell (312) and the sealing cover (315), and the two limiting grooves correspond to each other. The limiting rod (3196) is inserted into the limiting groove, and the right side of the first cleaning brush (3195) is in contact with the left side of the auxiliary air inlet (316).

4. The Roots pump equipped with a filter according to claim 1, characterized in that: The cleaning assembly (32) comprises an electric telescopic rod (321), the electric telescopic rod (321) being fixedly connected to the top of the sealing cover (315), the bottom of the electric telescopic rod (321) being fixedly connected to a connecting frame (322), the connecting frame (322) being slidably connected to the periphery of the filter body (314), and the inner side of the connecting frame (322) being fixedly connected to a second cleaning brush (323).

5. A Roots pump equipped with a filter according to claim 4, characterized in that: The inner side of the second cleaning brush (323) is in contact with the outer side of the filter body (314), and the second cleaning brush (323) is made of a soft material.

6. The Roots pump equipped with a filter according to claim 1, characterized in that: The limiting mechanism (4) comprises a fixing rod (41), the fixing rod (41) is fixedly connected to the front side of the protective shell (312), the outer periphery of the fixing rod (41) is slidably connected to a rectangular plate (42), the rear side of the rectangular plate (42) is fixedly connected to an insertion rod (44), the insertion rod (44) is inserted into the interior of the filter body (314), the outer periphery of the insertion rod (44) is sleeved with a second spring (43), the rear side of the second spring (43) is fixedly connected to the front side of the protective shell (312), and the front side of the second spring (43) is fixedly connected to the rear side of the rectangular plate (42).

7. The Roots pump equipped with a filter according to claim 6, characterized in that: The insertion rod (44) passes through the interior of the protective shell (312); slots are respectively provided in the interior of the filter body (314) and the protective shell (312), and the two slots correspond to each other, and the insertion rod (44) is inserted into the slots.

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