Leakage detection structure of vacuum mixer

Abstract

The leakage detection structure comprises a rack, a transmission case, a vacuum cover and a container are arranged in the rack from top to bottom, the bottom of the transmission case is connected with a gear box, and the gear box is located in the vacuum cover; the bottom of the transmission case is a transmission case bottom plate, the top of the gearbox is a gearbox connecting seat, and a gearbox sealing ring is arranged between the transmission case bottom plate and the gearbox connecting seat through bolts; a sealing top cover is installed on the transmission box bottom plate, a first sealing ring is arranged between the sealing top cover and the transmission box bottom plate, a second sealing ring is arranged between the sealing top cover and the gearbox connecting base, the gearbox connecting base, the transmission box bottom plate and the sealing top cover define a buffering cavity, and the pressure of the buffering cavity is collected by a pressure sensor. The buffer cavity is arranged outside the sealing element of the gear box and the transmission box, and the sealing element is arranged in the buffer cavity, so that the pressure in the tank can be ensured even if the sealing ring of the gear box loses efficacy.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum mixers and relates to a leakage detection structure of a vacuum mixer. Background Art

[0002] A vacuum mixer is a device that integrates dispersion and mixing and is applicable to processes such as mixing, reaction, dispersion, dissolution, homogenization, and emulsification of liquid-liquid, solid-liquid materials in polymer lithium-ion battery liquid, liquid lithium-ion battery liquid, electronic battery paste, adhesives, mold rubber, carbon sealant, polyurethane sealant, anaerobic adhesive, paint, ink, pigment, cosmetics, pharmaceutical, pesticide, and building materials industries.

[0003] The vacuum mixer uses a pressure sensor in the equipment tank to determine whether the pressure reaches the safe pressure reduction standard for the tank. However, there is a problem that the seal is damaged, resulting in the pressure in the tank always being within the safe range, losing the meaning of the safety function; the sealing ring at the top of the gearbox is located between the transmission box and the gearbox connection seat, and due to structural problems, it is not convenient to check and difficult to detect. Summary of the Invention

[0004] The purpose of the utility model is to provide a leakage detection structure for a vacuum mixer, which can solve the above problems and ensure the pressure in the tank.

[0005] According to the technical solution provided by the utility model: a leakage detection structure for a vacuum mixer includes a frame. A transmission box, a vacuum hood, and a container are arranged in the frame from top to bottom. The bottom of the transmission box is connected to a gearbox, and the gearbox is located in the vacuum hood; the bottom of the transmission box is a transmission box bottom plate, and the top of the gearbox is a gearbox connection seat. The transmission box bottom plate and the gearbox connection seat are connected by bolts, and a gearbox sealing ring is arranged between them; a sealing top cover is installed on the transmission box bottom plate, a first sealing ring is arranged between the sealing top cover and the transmission box bottom plate, and a second sealing ring is arranged between the sealing top cover and the gearbox connection seat. The gearbox connection seat, the transmission box bottom plate, and the sealing top cover enclose a buffer chamber, and the pressure of the buffer chamber is collected by a pressure sensor.

[0006] As a further improvement of the utility model, an installation hole is opened in the transmission box bottom plate; the middle part of the gearbox connection seat is a connection boss, and both sides of the connection boss are connection planes. The connection boss extends into the installation hole, and the gearbox sealing ring is inlaid on the connection plane, and the gearbox sealing ring abuts against the transmission box bottom plate and the connection plane.

[0007] As a further improvement of the utility model, a boss is arranged on the top of the transmission box bottom plate, the sealing top cover is annular, the first sealing ring is inlaid on the sealing top cover, and the second sealing ring is inlaid on the inner wall of the sealing top cover.

[0008] As a further improvement of the utility model, the first sealing ring abuts against the boss and the sealing top cover.

[0009] As a further improvement of the present utility model, an air passage is provided in the sealing top cover. The inner end of the air passage communicates with the buffer chamber, and a pressure sensor is installed at the outer end of the air passage.

[0010] As a further improvement of the present utility model, the second sealing ring abuts against the connecting boss in the middle of the gearbox connecting seat and the sealing top cover.

[0011] As a further improvement of the present utility model, a second pressure sensor is installed on the vacuum hood.

[0012] The positive and progressive effects of this application are as follows:

[0013] In the present utility model, a buffer chamber is provided outside the seals of the gearbox and the transmission box. The buffer chamber also has a seal. Even if the gearbox sealing ring fails, the pressure inside the tank can be guaranteed. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the present utility model.

[0015] Figure 2 It is a partially enlarged schematic diagram of the present utility model.

[0016] Figure 1 - Figure 2 Among them, it includes a gearbox 1, a gearbox connecting seat 1-1, a gearbox sealing ring 1-2, a vacuum hood 2, a container 3, a transmission box 4, a transmission box bottom plate 4-1, a sealing top cover 4-2, a first sealing ring 4-3, a second sealing ring 4-4, a buffer chamber 4-5, a pressure sensor 4-6, a frame 5, etc. Detailed Embodiment

[0017] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0018] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0019] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present utility model are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances for the embodiments of the present utility model described herein. In addition, similar terms such as "comprising" and "having" mean that in addition to the content already listed in "comprising" and "having", other content that has not been listed can also be "comprised" and "had"; for example, a process, method, system, product or device that may include a series of steps or units does not have to be limited to the steps or units that have been clearly listed, but may include other steps or units that have not been clearly listed or are inherent to these processes, methods, products or devices.

[0020] Due to the drawing angle problem, some components may not be drawn, but their positions and connection relationships can be understood according to the text description part.

[0021] As Figure 1 shown, the present utility model is a leakage detection structure of a vacuum mixer, including a frame 5. A transmission box 4, a vacuum hood 2 and a container 3 are arranged in the frame 5 from top to bottom. The bottom of the transmission box 4 is connected to a gear box 1, and the gear box 1 is located in the vacuum hood 2.

[0022] As Figure 2 shown, the bottom of the transmission box 4 is a transmission box bottom plate 4-1, and the top of the gear box 1 is a gear box connection seat 1-1. The transmission box bottom plate 4-1 and the gear box connection seat 1-1 are connected by bolts, and a gear box sealing ring 1-2 is arranged between them. A sealing top cover 4-2 is installed on the transmission box bottom plate 4-1. A first sealing ring 4-3 is arranged between the sealing top cover 4-2 and the transmission box bottom plate 4-1, and a second sealing ring 4-4 is arranged between the sealing top cover 4-2 and the gear box connection seat 1-1. The gear box connection seat 1-1, the transmission box bottom plate 4-1 and the sealing top cover 4-2 enclose a buffer cavity 4-5, and the pressure of the buffer cavity 4-5 is collected by a pressure sensor 4-6.

[0023] An installation hole is opened in the transmission box bottom plate 4-1; the middle part of the gear box connection seat 1-1 is a connection boss, and both sides of the connection boss are connection planes. The connection boss extends into the installation hole, and the gear box sealing ring 1-2 is inlaid on the connection plane. The gear box sealing ring 1-2 abuts against the transmission box bottom plate 4-1 and the connection plane to complete the sealing between the transmission box bottom plate 4-1 and the gear box connection seat 1-1.

[0024] The top of the transmission case bottom plate 4-1 is provided with a boss 4-11. The sealing top cover 4-2 is annular. The sealing top cover 4-2 is inlaid with a first sealing ring 4-3, and the first sealing ring 4-3 abuts against the boss 4-11 and the sealing top cover 4-2 to complete the sealing between the sealing top cover 4-2 and the transmission case bottom plate 4-1. A second sealing ring 4-4 is inlaid on the inner wall of the sealing top cover 4-2, and the second sealing ring 4-4 abuts against the connecting boss in the middle of the gearbox connecting seat 1-1 and the sealing top cover 4-2 to complete the sealing between the sealing top cover 4-2 and the gearbox connecting seat 1-1.

[0025] An air passage is provided in the sealing top cover 4-2. The inner end of the air passage is communicated with the buffer cavity 4-5, and a pressure sensor 4-6 is installed at the outer end of the air passage.

[0026] The working process of the present utility model is as follows:

[0027] A second pressure sensor is installed on the vacuum cover 2. When the equipment performs a vacuum pumping operation, if the pressure of the second pressure sensor is negative and the pressure of the pressure sensor 4-6 is normal pressure, the gearbox sealing ring 1-2 is normal. If the pressure of the second pressure sensor is negative and the pressure of the pressure sensor 4-6 is negative, it means that the gearbox sealing ring 1-2 is damaged.

[0028] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present utility model. However, the present utility model is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present utility model, and these modifications and improvements are also regarded as the protection scope of the present utility model.

Claims

1. A leakage detection structure for a vacuum mixer, comprising a frame (5), characterized in that: A transmission box (4), a vacuum cover (2), and a container (3) are arranged in the frame (5) from top to bottom. The bottom of the transmission box (4) is connected to a gear box (1), and the gear box (1) is located in the vacuum cover (2). The bottom of the transmission box (4) is a transmission box bottom plate (4-1), and the top of the gear box (1) is a gear box connecting seat (1-1). The transmission box bottom plate (4-1) and the gear box connecting seat (1-1) are connected by bolts, and a gear box sealing ring (1-2) is arranged between the two. A sealing top cover (4-2) is installed on the transmission box bottom plate (4-1), a first sealing ring (4-3) is arranged between the sealing top cover (4-2) and the transmission box bottom plate (4-1), and a second sealing ring (4-4) is arranged between the sealing top cover (4-2) and the gear box connecting seat (1-1). The gear box connecting seat (1-1), the transmission box bottom plate (4-1), and the sealing top cover (4-2) form a buffer chamber (4-5), and the pressure of the buffer chamber (4-5) is collected by a pressure sensor (4-6).

2. The leakage detection structure of the vacuum mixer according to claim 1, characterized in that: A mounting hole is formed in the transmission box bottom plate (4-1); a connecting boss is formed in the middle of the gear box connecting seat (1-1); connecting planes are formed on both sides of the connecting boss; the connecting boss extends into the mounting hole; a gear box sealing ring (1-2) is embedded on the connecting plane; and the gear box sealing ring (1-2) abuts against the transmission box bottom plate (4-1) and the connecting plane.

3. The leakage detection structure of the vacuum mixer according to claim 1, characterized in that: A boss (4-11) is provided on the top of the transmission box bottom plate (4-1); the sealing top cover (4-2) is annular; the sealing top cover (4-2) is inlaid with a first sealing ring (4-3); and the inner wall of the sealing top cover (4-2) is inlaid with a second sealing ring (4-4).

4. The leakage detection structure of the vacuum mixer according to claim 3, characterized in that: The first sealing ring (4-3) abuts against the boss (4-11) and the sealing top cover (4-2).

5. The leakage detection structure of a vacuum mixer according to claim 1, characterized in that: An air passage is provided in the sealing top cover (4-2), the inner end of the air passage is in communication with the buffer chamber (4-5), and the outer end of the air passage is installed with a pressure sensor (4-6).

6. The leakage detection structure of the vacuum mixer according to claim 3, characterized in that: The second sealing ring (4-4) abuts against the middle connecting boss of the gear box connecting seat (1-1) and the sealing top cover (4-2).

7. The leakage detection structure of a vacuum mixer according to claim 1, characterized in that: A second pressure sensor is installed on the vacuum cover (2).

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